From 5db464ad13b5a17965576817acca2a1009d9fe2a Mon Sep 17 00:00:00 2001
From: mculover666 <2412828003@qq.com>
Date: Thu, 30 Dec 2021 12:53:18 +0800
Subject: [PATCH] add littfs demo on tos_evb_aiot board
---
.../BSP/Hardware/W25QXX-SPI/w25q64.c | 256 +
.../BSP/Hardware/W25QXX-SPI/w25q64.h | 49 +
.../KEIL/MIMXRT1062xxxxx_flexspi_nor.scf | 111 +
.../littlefs/KEIL/MIMXRT1062xxxxx_ram.scf | 77 +
.../littlefs/KEIL/TencentOS-Tiny.uvoptx | 1942 ++++++
.../littlefs/KEIL/TencentOS-Tiny.uvprojx | 2124 +++++++
.../KEIL/tosevbrt1062_flexspi_nor.ini | 89 +
.../littlefs/KEIL/tosevbrt1062_ram.ini | 89 +
.../littlefs/board/board.c | 389 ++
.../littlefs/board/board.h | 220 +
.../littlefs/board/clock_config.c | 503 ++
.../littlefs/board/clock_config.h | 121 +
.../littlefs/board/dcd.c | 308 +
.../littlefs/board/dcd.h | 25 +
.../littlefs/board/mcu_init.c | 20 +
.../littlefs/board/mcu_init.h | 20 +
.../littlefs/board/pin_mux.c | 81 +
.../littlefs/board/pin_mux.h | 83 +
.../xip/tosevbrt1062_flexspi_nor_config.c | 48 +
.../xip/tosevbrt1062_flexspi_nor_config.h | 268 +
.../littlefs/littlefs_spiflash.c | 146 +
board/TencentOS_tiny_EVB_AIoT/littlefs/main.c | 28 +
components/fs/littlefs/3rdparty/LICENSE.md | 24 +
components/fs/littlefs/3rdparty/lfs.c | 5430 +++++++++++++++++
components/fs/littlefs/3rdparty/lfs.h | 696 +++
components/fs/littlefs/3rdparty/lfs_util.c | 33 +
components/fs/littlefs/3rdparty/lfs_util.h | 246 +
27 files changed, 13426 insertions(+)
create mode 100644 board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_flexspi_nor.scf
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_ram.scf
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvoptx
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvprojx
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_flexspi_nor.ini
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_ram.ini
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/clock_config.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/clock_config.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.h
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/littlefs_spiflash.c
create mode 100644 board/TencentOS_tiny_EVB_AIoT/littlefs/main.c
create mode 100644 components/fs/littlefs/3rdparty/LICENSE.md
create mode 100644 components/fs/littlefs/3rdparty/lfs.c
create mode 100644 components/fs/littlefs/3rdparty/lfs.h
create mode 100644 components/fs/littlefs/3rdparty/lfs_util.c
create mode 100644 components/fs/littlefs/3rdparty/lfs_util.h
diff --git a/board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.c b/board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.c
new file mode 100644
index 00000000..5500ab9c
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.c
@@ -0,0 +1,256 @@
+#include "w25q64.h"
+
+#if defined(USE_ST_HAL)
+static void spi_init(void)
+{
+ // it will be called in main.
+ // MX_SPIx_Init();
+}
+
+static void spi_cs_select(void)
+{
+ HAL_GPIO_WritePin(SPI_CS_PORT, SPI_CS_PIN, GPIO_PIN_RESET);
+
+ /* tCHSH: /CS Active Hold Time relative to CLK, min is 5 ns. */
+ for (int i = 0; i < 50; i++) {
+ __NOP();
+ }
+}
+
+static void spi_cs_deselect(void)
+{
+ HAL_GPIO_WritePin(SPI_CS_PORT, SPI_CS_PIN, GPIO_PIN_SET);
+
+ /* tSHSL: /CS Deselect Time (for Array Read -> Array Read ->
+ -> Erase or Program -> Read Status Registers), min is 10 ns. */
+ for (int i = 0; i < 100; i++) {
+ __NOP();
+ }
+}
+
+static int spi_transmit(uint8_t *buf, uint16_t size)
+{
+ HAL_StatusTypeDef status;
+
+ status = HAL_SPI_Transmit(&SPI_Handle, buf, size, 100);
+
+ return status == HAL_OK ? 0 : -1;
+}
+
+static int spi_receive(uint8_t *buf, uint16_t size)
+{
+ HAL_StatusTypeDef status;
+
+ status = HAL_SPI_Receive(&SPI_Handle, buf, size, 100);
+
+ return status == HAL_OK ? 0 : -1;
+}
+
+#elif defined(USE_NXP_FSL)
+static void spi_init(void)
+{
+ lpspi_master_config_t masterConfig;
+ uint32_t srcClock_Hz;
+
+ /* Set clock source for LPSPI */
+ CLOCK_SetMux(kCLOCK_LpspiMux, LPSPI_CLOCK_SOURCE_SELECT);
+ CLOCK_SetDiv(kCLOCK_LpspiDiv, LPSPI_CLOCK_SOURCE_DIVIDER);
+
+ /* Master config */
+ LPSPI_MasterGetDefaultConfig(&masterConfig);
+ masterConfig.baudRate = TRANSFER_BAUDRATE;
+
+ srcClock_Hz = LPSPI_MASTER_CLK_FREQ;
+ LPSPI_MasterInit(SPI_Handle, &masterConfig, srcClock_Hz);
+}
+
+static void spi_cs_select(void)
+{
+ GPIO_PinWrite(SPI_CS_PORT, SPI_CS_PIN, 0);
+
+ /* tCHSH: /CS Active Hold Time relative to CLK, min is 5 ns. */
+ for (int i = 0; i < 500; i++) {
+ __NOP();
+ }
+}
+
+static void spi_cs_deselect(void)
+{
+ GPIO_PinWrite(SPI_CS_PORT, SPI_CS_PIN, 1);
+
+ /* tSHSL: /CS Deselect Time (for Array Read -> Array Read ->
+ -> Erase or Program -> Read Status Registers), min is 10 ns. */
+ for (int i = 0; i < 1000; i++) {
+ __NOP();
+ }
+}
+
+static int spi_transmit(uint8_t *buf, uint16_t size)
+{
+ status_t status;
+ lpspi_transfer_t masterXfer;
+
+ /* Start master transfer, transfer data to slave. */
+ masterXfer.txData = buf;
+ masterXfer.rxData = NULL;
+ masterXfer.dataSize = size;
+ masterXfer.configFlags = kLPSPI_MasterByteSwap;
+
+ status = LPSPI_MasterTransferBlocking(SPI_Handle, &masterXfer);
+
+ return status == kStatus_Success ? 0 : -1;
+}
+
+static int spi_receive(uint8_t *buf, uint16_t size)
+{
+ status_t status;
+ lpspi_transfer_t masterXfer;
+
+ /* Start master transfer, receive data from slave */
+ masterXfer.txData = NULL;
+ masterXfer.rxData = buf;
+ masterXfer.dataSize = size;
+ masterXfer.configFlags = kLPSPI_MasterByteSwap;
+
+ status = LPSPI_MasterTransferBlocking(SPI_Handle, &masterXfer);
+
+ return status == kStatus_Success ? 0 : -1;
+}
+#endif /* USE_ST_HAL or USE_NXP_FSL */
+
+int w25qxx_init(void)
+{
+ spi_init();
+
+ return 0;
+}
+
+uint16_t w25qxx_read_deviceid(void)
+{
+ uint8_t recv_buf[2] = {0};
+ uint16_t device_id = 0;
+ uint8_t send_data[4] = {ManufactDeviceID_CMD, 0x00, 0x00, 0x00};
+
+ spi_cs_select();
+ if (spi_transmit(send_data, 4) == 0) {
+ if (spi_receive(recv_buf, 2) == 0) {
+ device_id = (recv_buf[0] << 8) | recv_buf[1];
+ }
+ }
+ spi_cs_deselect();
+
+ return device_id;
+}
+
+static void w25qxx_wait_busy(void)
+{
+ uint8_t cmd;
+ uint8_t result;
+
+ cmd = READ_STATU_REGISTER_1;
+
+ spi_cs_select();
+ spi_transmit(&cmd, 1);
+ while (1) {
+ spi_receive(&result, 1);
+ if ((result & 0x01) != 0x01) {
+ break;
+ }
+ }
+ spi_cs_deselect();
+
+ return;
+}
+
+int w25qxx_read(uint8_t* buffer, uint32_t start_addr, uint16_t nbytes)
+{
+ uint8_t cmd[4];
+
+ cmd[0] = READ_DATA_CMD;
+ cmd[1] = (uint8_t)(start_addr >> 16);
+ cmd[2] = (uint8_t)(start_addr >> 8);
+ cmd[3] = (uint8_t)(start_addr);
+
+ spi_cs_select();
+ if (spi_transmit(cmd, 4) == 0) {
+ if (spi_receive(buffer, nbytes) == 0) {
+ spi_cs_deselect();
+ return 0;
+ }
+ }
+ spi_cs_deselect();
+
+ return -1;
+}
+
+void w25qxx_write_enable(void)
+{
+ uint8_t cmd = WRITE_ENABLE_CMD;
+
+ spi_cs_select();
+ spi_transmit(&cmd, 1);
+ spi_cs_deselect();
+}
+
+void w25qxx_write_disable(void)
+{
+ uint8_t cmd = WRITE_DISABLE_CMD;
+
+ spi_cs_select();
+ spi_transmit(&cmd, 1);
+ spi_cs_deselect();
+}
+
+int w25qxx_erase_sector(uint32_t sector_addr)
+{
+ uint8_t cmd[4];
+
+ cmd[0] = SECTOR_ERASE_CMD;
+ cmd[1] = (uint8_t)(sector_addr>>16);
+ cmd[2] = (uint8_t)(sector_addr>>8);
+ cmd[3] = (uint8_t)(sector_addr);
+
+ w25qxx_wait_busy();
+
+ w25qxx_write_enable();
+
+ spi_cs_select();
+ if (spi_transmit(cmd, 4) != 0) {
+ spi_cs_deselect();
+ return -1;
+ }
+ spi_cs_deselect();
+
+ w25qxx_wait_busy();
+
+ return 0;
+}
+
+int w25qxx_page_program(uint8_t* dat, uint32_t write_addr, uint16_t nbytes)
+{
+ uint8_t cmd[4];
+
+ cmd[0] = PAGE_PROGRAM_CMD;
+ cmd[1] = (uint8_t)(write_addr >> 16);
+ cmd[2] = (uint8_t)(write_addr >> 8);
+ cmd[3] = (uint8_t)(write_addr);
+
+ w25qxx_wait_busy();
+
+ w25qxx_write_enable();
+
+ spi_cs_select();
+ if (spi_transmit(cmd, 4) != 0) {
+ spi_cs_deselect();
+ return -1;
+ }
+ if (spi_transmit(dat, nbytes) != 0) {
+ spi_cs_deselect();
+ return -1;
+ }
+ spi_cs_deselect();
+
+ w25qxx_wait_busy();
+
+ return 0;
+}
diff --git a/board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.h b/board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.h
new file mode 100644
index 00000000..6bae1e87
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/BSP/Hardware/W25QXX-SPI/w25q64.h
@@ -0,0 +1,49 @@
+#ifndef _W25Q64_H_
+#define _W25Q64_H_
+
+//#define USE_ST_HAL
+#define USE_NXP_FSL
+
+#if defined(USE_ST_HAL)
+#include "spi.h"
+
+#define SPI_Handle hspi1
+#define SPI_CS_PORT GPIOA
+#define SPI_CS_PIN GPIO_PIN_4
+
+#elif defined(USE_NXP_FSL)
+#include "fsl_gpio.h"
+#include "fsl_lpspi.h"
+
+#define SPI_Handle LPSPI3
+#define SPI_CS_PORT GPIO1
+#define SPI_CS_PIN 3
+/* Select USB1 PLL PFD0 (720 MHz) as lpspi clock source */
+#define LPSPI_CLOCK_SOURCE_SELECT (1U)
+/* Clock divider for master lpspi clock source */
+#define LPSPI_CLOCK_SOURCE_DIVIDER (7U)
+/* 90MHz */
+#define LPSPI_MASTER_CLK_FREQ (CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) / (LPSPI_CLOCK_SOURCE_DIVIDER + 1U))
+/*! Transfer baudrate - 80M */
+#define TRANSFER_BAUDRATE 80000000U
+#endif /* USE_ST_HAL or USE_NXP_FSL */
+
+enum {
+ ManufactDeviceID_CMD = 0x90,
+ READ_STATU_REGISTER_1 = 0x05,
+ READ_STATU_REGISTER_2 = 0x35,
+ READ_DATA_CMD = 0x03,
+ WRITE_ENABLE_CMD = 0x06,
+ WRITE_DISABLE_CMD = 0x04,
+ SECTOR_ERASE_CMD = 0x20,
+ CHIP_ERASE_CMD = 0xc7,
+ PAGE_PROGRAM_CMD = 0x02,
+};
+
+int w25qxx_init(void);
+uint16_t w25qxx_read_deviceid(void);
+int w25qxx_read(uint8_t* buffer, uint32_t start_addr, uint16_t nbytes);
+int w25qxx_erase_sector(uint32_t sector_addr);
+int w25qxx_page_program(uint8_t* dat, uint32_t write_addr, uint16_t nbytes);
+
+#endif
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_flexspi_nor.scf b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_flexspi_nor.scf
new file mode 100644
index 00000000..b6afaaa7
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_flexspi_nor.scf
@@ -0,0 +1,111 @@
+#!armclang --target=arm-arm-none-eabi -mcpu=cortex-m7 -E -x c
+/*
+** ###################################################################
+** Processors: MIMXRT1062CVJ5A
+** MIMXRT1062CVL5A
+** MIMXRT1062DVJ6A
+** MIMXRT1062DVL6A
+**
+** Compiler: Keil ARM C/C++ Compiler
+** Reference manual: IMXRT1060RM Rev.1, 12/2018 | IMXRT1060SRM Rev.3
+** Version: rev. 0.1, 2017-01-10
+** Build: b191015
+**
+** Abstract:
+** Linker file for the Keil ARM C/C++ Compiler
+**
+** Copyright 2016 Freescale Semiconductor, Inc.
+** Copyright 2016-2019 NXP
+** All rights reserved.
+**
+** SPDX-License-Identifier: BSD-3-Clause
+**
+** http: www.nxp.com
+** mail: support@nxp.com
+**
+** ###################################################################
+*/
+
+#if (defined(__ram_vector_table__))
+ #define __ram_vector_table_size__ 0x00000400
+#else
+ #define __ram_vector_table_size__ 0x00000000
+#endif
+
+#define m_flash_config_start 0x60000000
+#define m_flash_config_size 0x00001000
+
+#define m_ivt_start 0x60001000
+#define m_ivt_size 0x00001000
+
+#define m_interrupts_start 0x60002000
+#define m_interrupts_size 0x00000400
+
+#define m_text_start 0x60002400
+#define m_text_size 0x007FDC00
+
+#define m_interrupts_ram_start 0x20000000
+#define m_interrupts_ram_size __ram_vector_table_size__
+
+#define m_data_start (m_interrupts_ram_start + m_interrupts_ram_size)
+#define m_data_size (0x00020000 - m_interrupts_ram_size)
+
+#define m_data2_start 0x20200000
+#define m_data2_size 0x000C0000
+
+/* Sizes */
+#if (defined(__stack_size__))
+ #define Stack_Size __stack_size__
+#else
+ #define Stack_Size 0x0400
+#endif
+
+#if (defined(__heap_size__))
+ #define Heap_Size __heap_size__
+#else
+ #define Heap_Size 0x0400
+#endif
+
+#if defined(XIP_BOOT_HEADER_ENABLE) && (XIP_BOOT_HEADER_ENABLE == 1)
+LR_m_text m_flash_config_start m_text_start+m_text_size-m_flash_config_start { ; load region size_region
+ RW_m_config_text m_flash_config_start FIXED m_flash_config_size { ; load address = execution address
+ * (.boot_hdr.conf, +FIRST)
+ }
+
+ RW_m_ivt_text m_ivt_start FIXED m_ivt_size { ; load address = execution address
+ * (.boot_hdr.ivt, +FIRST)
+ * (.boot_hdr.boot_data)
+ * (.boot_hdr.dcd_data)
+ }
+#else
+LR_m_text m_interrupts_start m_text_start+m_text_size-m_interrupts_start { ; load region size_region
+#endif
+ VECTOR_ROM m_interrupts_start FIXED m_interrupts_size { ; load address = execution address
+ * (.isr_vector,+FIRST)
+ }
+ ER_m_text m_text_start FIXED m_text_size { ; load address = execution address
+ * (InRoot$$Sections)
+ .ANY (+RO)
+ }
+#if (defined(__ram_vector_table__))
+ VECTOR_RAM m_interrupts_ram_start EMPTY m_interrupts_ram_size {
+ }
+#else
+ VECTOR_RAM m_interrupts_start EMPTY 0 {
+ }
+#endif
+ RW_m_data m_data_start m_data_size-Stack_Size-Heap_Size { ; RW data
+ .ANY (+RW +ZI)
+ * (RamFunction)
+ * (NonCacheable.init)
+ * (*NonCacheable)
+ }
+ ARM_LIB_HEAP +0 EMPTY Heap_Size { ; Heap region growing up
+ }
+ ARM_LIB_STACK m_data_start+m_data_size EMPTY -Stack_Size { ; Stack region growing down
+ }
+ RW_m_ncache m_data2_start EMPTY 0 {
+ }
+ RW_m_ncache_unused +0 EMPTY m_data2_size-ImageLength(RW_m_ncache) { ; Empty region added for MPU configuration
+ }
+}
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_ram.scf b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_ram.scf
new file mode 100644
index 00000000..45ed3a1d
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/MIMXRT1062xxxxx_ram.scf
@@ -0,0 +1,77 @@
+#!armclang --target=arm-arm-none-eabi -mcpu=cortex-m7 -E -x c
+/*
+** ###################################################################
+** Processors: MIMXRT1062CVJ5A
+** MIMXRT1062CVL5A
+** MIMXRT1062DVJ6A
+** MIMXRT1062DVL6A
+**
+** Compiler: Keil ARM C/C++ Compiler
+** Reference manual: IMXRT1060RM Rev.1, 12/2018 | IMXRT1060SRM Rev.3
+** Version: rev. 0.1, 2017-01-10
+** Build: b191015
+**
+** Abstract:
+** Linker file for the Keil ARM C/C++ Compiler
+**
+** Copyright 2016 Freescale Semiconductor, Inc.
+** Copyright 2016-2019 NXP
+** All rights reserved.
+**
+** SPDX-License-Identifier: BSD-3-Clause
+**
+** http: www.nxp.com
+** mail: support@nxp.com
+**
+** ###################################################################
+*/
+
+#define m_interrupts_start 0x00000000
+#define m_interrupts_size 0x00000400
+
+#define m_text_start 0x00000400
+#define m_text_size 0x0001FC00
+
+#define m_data_start 0x20000000
+#define m_data_size 0x00020000
+
+#define m_data2_start 0x20200000
+#define m_data2_size 0x000C0000
+
+/* Sizes */
+#if (defined(__stack_size__))
+ #define Stack_Size __stack_size__
+#else
+ #define Stack_Size 0x0400
+#endif
+
+#if (defined(__heap_size__))
+ #define Heap_Size __heap_size__
+#else
+ #define Heap_Size 0x0400
+#endif
+
+LR_m_text m_interrupts_start m_text_start+m_text_size-m_interrupts_start { ; load region size_region
+ VECTOR_ROM m_interrupts_start FIXED m_interrupts_size { ; load address = execution address
+ * (.isr_vector,+FIRST)
+ }
+ ER_m_text m_text_start FIXED m_text_size { ; load address = execution address
+ * (InRoot$$Sections)
+ .ANY (+RO)
+ }
+ VECTOR_RAM m_interrupts_start EMPTY 0 {
+ }
+ RW_m_data m_data_start m_data_size-Stack_Size-Heap_Size { ; RW data
+ .ANY (+RW +ZI)
+ * (NonCacheable.init)
+ * (*NonCacheable)
+ }
+ ARM_LIB_HEAP +0 EMPTY Heap_Size { ; Heap region growing up
+ }
+ ARM_LIB_STACK m_data_start+m_data_size EMPTY -Stack_Size { ; Stack region growing down
+ }
+ RW_m_ncache m_data2_start EMPTY 0 {
+ }
+ RW_m_ncache_unused +0 EMPTY m_data2_size-ImageLength(RW_m_ncache) { ; Empty region added for MPU configuration
+ }
+}
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvoptx b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvoptx
new file mode 100644
index 00000000..6772ccf8
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvoptx
@@ -0,0 +1,1942 @@
+
+
+
+ 1.0
+
+ ### uVision Project, (C) Keil Software
+
+
+ *.c
+ *.s*; *.src; *.a*
+ *.obj
+ *.lib
+ *.txt; *.h; *.inc; *.md
+ *.plm
+ *.cpp
+ 0
+
+
+
+ 0
+ 0
+
+
+
+ TencentOS-Tiny_debug
+ 0x4
+ ARM-ADS
+
+ 12000000
+
+ 1
+ 1
+ 0
+ 1
+ 0
+
+
+ 1
+ 65535
+ 0
+ 0
+ 0
+
+
+ 79
+ 66
+ 8
+ .\output\
+
+
+ 1
+ 1
+ 1
+ 0
+ 1
+ 1
+ 0
+ 1
+ 0
+ 0
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+ hardware
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+ ..\..\BSP\Hardware\W25QXX-SPI\w25q64.c
+ w25q64.c
+ 0
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+
+
+
+ littlefs
+ 1
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+ 15
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+ ..\..\..\..\components\fs\littlefs\3rdparty\lfs.c
+ lfs.c
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+
+
+
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvprojx b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvprojx
new file mode 100644
index 00000000..18b22501
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/TencentOS-Tiny.uvprojx
@@ -0,0 +1,2124 @@
+
+
+
+ 2.1
+
+ ### uVision Project, (C) Keil Software
+
+
+
+ TencentOS-Tiny_debug
+ 0x4
+ ARM-ADS
+ 6140000::V6.14::ARMCLANG
+ 1
+
+
+ MIMXRT1062DVL6A
+ NXP
+ NXP.MIMXRT1062_DFP.13.0.0
+ https://mcuxpresso.nxp.com/cmsis_pack/repo/
+ CPUTYPE("Cortex-M7") FPU3(DFPU)
+
+
+
+ 0
+ $$Device:MIMXRT1062DVL6A$Device\Include\fsl_device_registers.h
+
+
+
+
+
+
+
+
+
+ $$Device:MIMXRT1062DVL6A$SVD\MIMXRT1062.svd
+ 0
+ 0
+
+
+
+
+
+
+ 0
+ 0
+ 0
+ 0
+ 1
+
+ .\debug\
+ TencentOS-Tiny.out
+ 1
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+ 1
+ 1
+ .\output\
+ 1
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+
+ 0
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+ 0
+ 0
+ 0
+ 1
+ 0
+ 0
+ 0
+ 0
+ 3
+
+
+ 1
+
+
+ SARMCM3.DLL
+ -REMAP -MPU
+ DCM.DLL
+ -pCM7
+ SARMCM3.DLL
+ -MPU
+ TCM.DLL
+ -pCM7
+
+
+
+ 1
+ 0
+ 0
+ 0
+ 16
+
+
+
+
+ 1
+ 0
+ 0
+ 0
+ 1
+ 4096
+
+ 1
+ BIN\UL2CM3.DLL
+ "" ()
+
+
+
+
+ 0
+
+
+
+ 0
+ 1
+ 1
+ 1
+ 1
+ 1
+ 1
+ 1
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+ 1
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+ 0
+ 0
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+ 1
+ 1
+ 1
+ 1
+ 1
+ 1
+ 1
+ 1
+ 0
+ 0
+ "Cortex-M7"
+
+ 0
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+ 0
+ 0
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+ 0x20000
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+
+ 1
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+ 0x4000000
+
+
+ 1
+ 0x20200000
+ 0x40000
+
+
+ 1
+ 0x60000000
+ 0x4000000
+
+
+ 1
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+
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+
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+ 0
+ 0
+ 3
+ 3
+ 1
+ 1
+ 0
+ 0
+ 0
+
+ -fno-common -fdata-sections -ffreestanding -fno-builtin -mthumb
+ DEBUG, CPU_MIMXRT1062DVL6A, PRINTF_FLOAT_ENABLE=0, SCANF_FLOAT_ENABLE=0, PRINTF_ADVANCED_ENABLE=0, SCANF_ADVANCED_ENABLE=0,SDK_DEBUGCONSOLE_UART
+
+ ..;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\CMSIS\Include;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\xip;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\utilities\debug_console_lite;..\board;..\board\xip;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\uart;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\lists;..\..\..\..\arch\arm\arm-v7m\common\include;..\..\..\..\arch\arm\arm-v7m\cortex-m7\armcc;..\..\..\..\kernel\core\include;..\..\TOS-CONFIG;..\..\BSP\Hardware\W25QXX-SPI;..\..\..\..\components\fs\littlefs\3rdparty
+
+
+
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 1
+
+
+ DEBUG, __STARTUP_INITIALIZE_NONCACHEDATA
+
+
+
+
+
+ 0
+ 0
+ 0
+ 0
+ 1
+ 0
+ 0x00000000
+ 0x20000000
+
+ MIMXRT1062xxxxx_ram.scf
+
+
+ --remove
+
+ 6314,6329
+
+
+
+
+
+ startup
+
+
+ startup_MIMXRT1062.s
+ 2
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\arm\startup_MIMXRT1062.s
+
+
+
+
+ source
+
+
+ main.c
+ 1
+ ..\main.c
+
+
+
+
+ example
+
+
+ littlefs_spiflash.c
+ 1
+ ..\littlefs_spiflash.c
+
+
+
+
+ board
+
+
+ board.c
+ 1
+ ..\board\board.c
+
+
+ clock_config.c
+ 1
+ ..\board\clock_config.c
+
+
+ dcd.c
+ 1
+ ..\board\dcd.c
+
+
+ pin_mux.c
+ 1
+ ..\board\pin_mux.c
+
+
+ mcu_init.c
+ 1
+ ..\board\mcu_init.c
+
+
+
+
+ utilities
+
+
+ fsl_assert.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\utilities\debug_console_lite\fsl_assert.c
+
+
+ fsl_debug_console.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\utilities\debug_console_lite\fsl_debug_console.c
+
+
+
+
+ drivers
+
+
+ fsl_adc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_adc.c
+
+
+ fsl_adc_etc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_adc_etc.c
+
+
+ fsl_aipstz.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_aipstz.c
+
+
+ fsl_aoi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_aoi.c
+
+
+ fsl_bee.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_bee.c
+
+
+ fsl_cache.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_cache.c
+
+
+ fsl_clock.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_clock.c
+
+
+ fsl_cmp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_cmp.c
+
+
+ fsl_common.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_common.c
+
+
+ fsl_csi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_csi.c
+
+
+ fsl_dcdc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_dcdc.c
+
+
+ fsl_dcp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_dcp.c
+
+
+ fsl_dmamux.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_dmamux.c
+
+
+ fsl_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_edma.c
+
+
+ fsl_elcdif.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_elcdif.c
+
+
+ fsl_enc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_enc.c
+
+
+ fsl_enet.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_enet.c
+
+
+ fsl_ewm.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_ewm.c
+
+
+ fsl_flexcan.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexcan.c
+
+
+ fsl_flexcan_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexcan_edma.c
+
+
+ fsl_flexio.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio.c
+
+
+ fsl_flexio_camera.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_camera.c
+
+
+ fsl_flexio_camera_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_camera_edma.c
+
+
+ fsl_flexio_i2c_master.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_i2c_master.c
+
+
+ fsl_flexio_i2s.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_i2s.c
+
+
+ fsl_flexio_i2s_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_i2s_edma.c
+
+
+ fsl_flexio_mculcd.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_mculcd.c
+
+
+ fsl_flexio_mculcd_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_mculcd_edma.c
+
+
+ fsl_flexio_spi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_spi.c
+
+
+ fsl_flexio_spi_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_spi_edma.c
+
+
+ fsl_flexio_uart.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_uart.c
+
+
+ fsl_flexio_uart_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_uart_edma.c
+
+
+ fsl_flexram.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexram.c
+
+
+ fsl_flexram_allocate.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexram_allocate.c
+
+
+ fsl_flexspi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexspi.c
+
+
+ fsl_flexspi_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexspi_edma.c
+
+
+ fsl_gpc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_gpc.c
+
+
+ fsl_gpio.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_gpio.c
+
+
+ fsl_gpt.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_gpt.c
+
+
+ fsl_kpp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_kpp.c
+
+
+ fsl_lpi2c.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpi2c.c
+
+
+ fsl_lpi2c_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpi2c_edma.c
+
+
+ fsl_lpspi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpspi.c
+
+
+ fsl_lpspi_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpspi_edma.c
+
+
+ fsl_lpuart.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpuart.c
+
+
+ fsl_lpuart_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpuart_edma.c
+
+
+ fsl_ocotp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_ocotp.c
+
+
+ fsl_pit.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pit.c
+
+
+ fsl_pmu.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pmu.c
+
+
+ fsl_pwm.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pwm.c
+
+
+ fsl_pxp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pxp.c
+
+
+ fsl_qtmr.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_qtmr.c
+
+
+ fsl_romapi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_romapi.c
+
+
+ fsl_rtwdog.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_rtwdog.c
+
+
+ fsl_sai.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_sai.c
+
+
+ fsl_sai_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_sai_edma.c
+
+
+ fsl_semc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_semc.c
+
+
+ fsl_snvs_hp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_snvs_hp.c
+
+
+ fsl_snvs_lp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_snvs_lp.c
+
+
+ fsl_spdif.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_spdif.c
+
+
+ fsl_spdif_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_spdif_edma.c
+
+
+ fsl_src.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_src.c
+
+
+ fsl_tempmon.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_tempmon.c
+
+
+ fsl_trng.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_trng.c
+
+
+ fsl_tsc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_tsc.c
+
+
+ fsl_usdhc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_usdhc.c
+
+
+ fsl_wdog.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_wdog.c
+
+
+ fsl_xbara.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_xbara.c
+
+
+ fsl_xbarb.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_xbarb.c
+
+
+
+
+ device
+
+
+ system_MIMXRT1062.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\system_MIMXRT1062.c
+
+
+
+
+ xip
+
+
+ fsl_flexspi_nor_boot.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\xip\fsl_flexspi_nor_boot.c
+
+
+ tosevbrt1062_flexspi_nor_config.c
+ 1
+ ..\board\xip\tosevbrt1062_flexspi_nor_config.c
+
+
+
+
+ nxp/component/uart
+
+
+ fsl_adapter_lpuart.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\uart\fsl_adapter_lpuart.c
+
+
+
+
+ nxp/component/lists
+
+
+ fsl_component_generic_list.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\lists\fsl_component_generic_list.c
+
+
+
+
+ cpu
+
+
+ tos_cpu.c
+ 1
+ ..\..\..\..\arch\arm\arm-v7m\common\tos_cpu.c
+
+
+ port_c.c
+ 1
+ ..\..\..\..\arch\arm\arm-v7m\cortex-m7\armcc\port_c.c
+
+
+ port_s.S
+ 2
+ ..\..\..\..\arch\arm\arm-v7m\cortex-m7\armcc\port_s.S
+
+
+
+
+ kernel
+
+
+ tos_barrier.c
+ 1
+ ..\..\..\..\kernel\core\tos_barrier.c
+
+
+ tos_binary_heap.c
+ 1
+ ..\..\..\..\kernel\core\tos_binary_heap.c
+
+
+ tos_bitmap.c
+ 1
+ ..\..\..\..\kernel\core\tos_bitmap.c
+
+
+ tos_char_fifo.c
+ 1
+ ..\..\..\..\kernel\core\tos_char_fifo.c
+
+
+ tos_completion.c
+ 1
+ ..\..\..\..\kernel\core\tos_completion.c
+
+
+ tos_countdownlatch.c
+ 1
+ ..\..\..\..\kernel\core\tos_countdownlatch.c
+
+
+ tos_event.c
+ 1
+ ..\..\..\..\kernel\core\tos_event.c
+
+
+ tos_global.c
+ 1
+ ..\..\..\..\kernel\core\tos_global.c
+
+
+ tos_mail_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_mail_queue.c
+
+
+ tos_message_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_message_queue.c
+
+
+ tos_mmblk.c
+ 1
+ ..\..\..\..\kernel\core\tos_mmblk.c
+
+
+ tos_mmheap.c
+ 1
+ ..\..\..\..\kernel\core\tos_mmheap.c
+
+
+ tos_mutex.c
+ 1
+ ..\..\..\..\kernel\core\tos_mutex.c
+
+
+ tos_pend.c
+ 1
+ ..\..\..\..\kernel\core\tos_pend.c
+
+
+ tos_priority_mail_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_priority_mail_queue.c
+
+
+ tos_priority_message_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_priority_message_queue.c
+
+
+ tos_priority_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_priority_queue.c
+
+
+ tos_ring_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_ring_queue.c
+
+
+ tos_robin.c
+ 1
+ ..\..\..\..\kernel\core\tos_robin.c
+
+
+ tos_rwlock.c
+ 1
+ ..\..\..\..\kernel\core\tos_rwlock.c
+
+
+ tos_sched.c
+ 1
+ ..\..\..\..\kernel\core\tos_sched.c
+
+
+ tos_sem.c
+ 1
+ ..\..\..\..\kernel\core\tos_sem.c
+
+
+ tos_stopwatch.c
+ 1
+ ..\..\..\..\kernel\core\tos_stopwatch.c
+
+
+ tos_sys.c
+ 1
+ ..\..\..\..\kernel\core\tos_sys.c
+
+
+ tos_task.c
+ 1
+ ..\..\..\..\kernel\core\tos_task.c
+
+
+ tos_tick.c
+ 1
+ ..\..\..\..\kernel\core\tos_tick.c
+
+
+ tos_time.c
+ 1
+ ..\..\..\..\kernel\core\tos_time.c
+
+
+ tos_timer.c
+ 1
+ ..\..\..\..\kernel\core\tos_timer.c
+
+
+
+
+ config
+
+
+ tos_config.h
+ 5
+ ..\..\TOS-CONFIG\tos_config.h
+
+
+
+
+ hardware
+
+
+ w25q64.c
+ 1
+ ..\..\BSP\Hardware\W25QXX-SPI\w25q64.c
+
+
+
+
+ littlefs
+
+
+ lfs.c
+ 1
+ ..\..\..\..\components\fs\littlefs\3rdparty\lfs.c
+
+
+ lfs_util.c
+ 1
+ ..\..\..\..\components\fs\littlefs\3rdparty\lfs_util.c
+
+
+
+
+
+
+ TencentOS-Tiny flexspi_nor_release
+ 0x4
+ ARM-ADS
+ 6140000::V6.14::ARMCLANG
+ 1
+
+
+ MIMXRT1062DVL6A
+ NXP
+ NXP.MIMXRT1062_DFP.13.0.0
+ https://mcuxpresso.nxp.com/cmsis_pack/repo/
+ CPUTYPE("Cortex-M7") FPU3(DFPU)
+
+
+
+ 0
+ $$Device:MIMXRT1062DVL6A$Device\Include\fsl_device_registers.h
+
+
+
+
+
+
+
+
+
+ $$Device:MIMXRT1062DVL6A$SVD\MIMXRT1062.svd
+ 0
+ 0
+
+
+
+
+
+
+ 0
+ 0
+ 0
+ 0
+ 1
+
+ flexspi_nor_release\
+ hello_world.out
+ 1
+ 0
+ 0
+ 0
+ 1
+ .\output\
+ 1
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+ 0
+ 0
+ 0
+ 0
+ 3
+
+
+ 1
+
+
+ SARMCM3.DLL
+ -REMAP -MPU
+ DCM.DLL
+ -pCM7
+ SARMCM3.DLL
+ -MPU
+ TCM.DLL
+ -pCM7
+
+
+
+ 1
+ 0
+ 0
+ 0
+ 16
+
+
+
+
+ 1
+ 0
+ 0
+ 1
+ 1
+ 4096
+
+ 1
+ BIN\UL2CM3.DLL
+ "" ()
+
+
+
+
+ 0
+
+
+
+ 0
+ 1
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+ "Cortex-M7"
+
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+ 0x20000
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+ 1
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+ 0x4000000
+
+
+ 1
+ 0x20200000
+ 0x40000
+
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+ 1
+ 0x60000000
+ 0x4000000
+
+
+ 1
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+
+ 1
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+ 1
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+ 0
+ 3
+ 0
+ 0
+ 0
+ 0
+ 0
+ 3
+ 3
+ 1
+ 1
+ 0
+ 0
+ 0
+
+ -fno-common -fdata-sections -ffreestanding -fno-builtin -mthumb
+ XIP_EXTERNAL_FLASH=1, XIP_BOOT_HEADER_ENABLE=1, NDEBUG, CPU_MIMXRT1062DVL6A, PRINTF_FLOAT_ENABLE=0, SCANF_FLOAT_ENABLE=0, PRINTF_ADVANCED_ENABLE=0, SCANF_ADVANCED_ENABLE=0,SDK_DEBUGCONSOLE_UART
+
+ ..;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\CMSIS\Include;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\xip;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\utilities\debug_console_lite;..\board;..\board\xip;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\uart;..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\lists;..\..\..\..\arch\arm\arm-v7m\common\include;..\..\..\..\arch\arm\arm-v7m\cortex-m7\armcc;..\..\..\..\kernel\core\include;..\..\TOS-CONFIG;..\..\BSP\Hardware\W25QXX-SPI;..\..\..\..\components\fs\littlefs\3rdparty
+
+
+
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 0
+ 1
+
+
+ NDEBUG, __STARTUP_INITIALIZE_NONCACHEDATA
+
+
+
+
+
+ 0
+ 0
+ 0
+ 0
+ 1
+ 0
+ 0x00000000
+ 0x20000000
+
+ MIMXRT1062xxxxx_flexspi_nor.scf
+
+
+ --remove --predefine="-DXIP_BOOT_HEADER_ENABLE=1"
+
+ 6314,6329
+
+
+
+
+
+ startup
+
+
+ startup_MIMXRT1062.s
+ 2
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\arm\startup_MIMXRT1062.s
+
+
+
+
+ source
+
+
+ main.c
+ 1
+ ..\main.c
+
+
+
+
+ example
+
+
+ littlefs_spiflash.c
+ 1
+ ..\littlefs_spiflash.c
+
+
+
+
+ board
+
+
+ board.c
+ 1
+ ..\board\board.c
+
+
+ clock_config.c
+ 1
+ ..\board\clock_config.c
+
+
+ dcd.c
+ 1
+ ..\board\dcd.c
+
+
+ pin_mux.c
+ 1
+ ..\board\pin_mux.c
+
+
+ mcu_init.c
+ 1
+ ..\board\mcu_init.c
+
+
+
+
+ utilities
+
+
+ fsl_assert.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\utilities\debug_console_lite\fsl_assert.c
+
+
+ fsl_debug_console.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\utilities\debug_console_lite\fsl_debug_console.c
+
+
+
+
+ drivers
+
+
+ fsl_adc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_adc.c
+
+
+ fsl_adc_etc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_adc_etc.c
+
+
+ fsl_aipstz.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_aipstz.c
+
+
+ fsl_aoi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_aoi.c
+
+
+ fsl_bee.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_bee.c
+
+
+ fsl_cache.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_cache.c
+
+
+ fsl_clock.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_clock.c
+
+
+ fsl_cmp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_cmp.c
+
+
+ fsl_common.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_common.c
+
+
+ fsl_csi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_csi.c
+
+
+ fsl_dcdc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_dcdc.c
+
+
+ fsl_dcp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_dcp.c
+
+
+ fsl_dmamux.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_dmamux.c
+
+
+ fsl_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_edma.c
+
+
+ fsl_elcdif.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_elcdif.c
+
+
+ fsl_enc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_enc.c
+
+
+ fsl_enet.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_enet.c
+
+
+ fsl_ewm.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_ewm.c
+
+
+ fsl_flexcan.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexcan.c
+
+
+ fsl_flexcan_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexcan_edma.c
+
+
+ fsl_flexio.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio.c
+
+
+ fsl_flexio_camera.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_camera.c
+
+
+ fsl_flexio_camera_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_camera_edma.c
+
+
+ fsl_flexio_i2c_master.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_i2c_master.c
+
+
+ fsl_flexio_i2s.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_i2s.c
+
+
+ fsl_flexio_i2s_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_i2s_edma.c
+
+
+ fsl_flexio_mculcd.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_mculcd.c
+
+
+ fsl_flexio_mculcd_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_mculcd_edma.c
+
+
+ fsl_flexio_spi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_spi.c
+
+
+ fsl_flexio_spi_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_spi_edma.c
+
+
+ fsl_flexio_uart.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_uart.c
+
+
+ fsl_flexio_uart_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexio_uart_edma.c
+
+
+ fsl_flexram.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexram.c
+
+
+ fsl_flexram_allocate.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexram_allocate.c
+
+
+ fsl_flexspi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexspi.c
+
+
+ fsl_flexspi_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_flexspi_edma.c
+
+
+ fsl_gpc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_gpc.c
+
+
+ fsl_gpio.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_gpio.c
+
+
+ fsl_gpt.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_gpt.c
+
+
+ fsl_kpp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_kpp.c
+
+
+ fsl_lpi2c.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpi2c.c
+
+
+ fsl_lpi2c_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpi2c_edma.c
+
+
+ fsl_lpspi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpspi.c
+
+
+ fsl_lpspi_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpspi_edma.c
+
+
+ fsl_lpuart.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpuart.c
+
+
+ fsl_lpuart_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_lpuart_edma.c
+
+
+ fsl_ocotp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_ocotp.c
+
+
+ fsl_pit.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pit.c
+
+
+ fsl_pmu.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pmu.c
+
+
+ fsl_pwm.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pwm.c
+
+
+ fsl_pxp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_pxp.c
+
+
+ fsl_qtmr.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_qtmr.c
+
+
+ fsl_romapi.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_romapi.c
+
+
+ fsl_rtwdog.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_rtwdog.c
+
+
+ fsl_sai.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_sai.c
+
+
+ fsl_sai_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_sai_edma.c
+
+
+ fsl_semc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_semc.c
+
+
+ fsl_snvs_hp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_snvs_hp.c
+
+
+ fsl_snvs_lp.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_snvs_lp.c
+
+
+ fsl_spdif.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_spdif.c
+
+
+ fsl_spdif_edma.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_spdif_edma.c
+
+
+ fsl_src.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_src.c
+
+
+ fsl_tempmon.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_tempmon.c
+
+
+ fsl_trng.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_trng.c
+
+
+ fsl_tsc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_tsc.c
+
+
+ fsl_usdhc.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_usdhc.c
+
+
+ fsl_wdog.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_wdog.c
+
+
+ fsl_xbara.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_xbara.c
+
+
+ fsl_xbarb.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\drivers\fsl_xbarb.c
+
+
+
+
+ device
+
+
+ system_MIMXRT1062.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\system_MIMXRT1062.c
+
+
+
+
+ xip
+
+
+ fsl_flexspi_nor_boot.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\xip\fsl_flexspi_nor_boot.c
+
+
+ tosevbrt1062_flexspi_nor_config.c
+ 1
+ ..\board\xip\tosevbrt1062_flexspi_nor_config.c
+
+
+
+
+ nxp/component/uart
+
+
+ fsl_adapter_lpuart.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\uart\fsl_adapter_lpuart.c
+
+
+
+
+ nxp/component/lists
+
+
+ fsl_component_generic_list.c
+ 1
+ ..\..\..\..\platform\vendor_bsp\nxp\MIMXRT1062\components\lists\fsl_component_generic_list.c
+
+
+
+
+ cpu
+
+
+ tos_cpu.c
+ 1
+ ..\..\..\..\arch\arm\arm-v7m\common\tos_cpu.c
+
+
+ port_c.c
+ 1
+ ..\..\..\..\arch\arm\arm-v7m\cortex-m7\armcc\port_c.c
+
+
+ port_s.S
+ 2
+ ..\..\..\..\arch\arm\arm-v7m\cortex-m7\armcc\port_s.S
+
+
+
+
+ kernel
+
+
+ tos_barrier.c
+ 1
+ ..\..\..\..\kernel\core\tos_barrier.c
+
+
+ tos_binary_heap.c
+ 1
+ ..\..\..\..\kernel\core\tos_binary_heap.c
+
+
+ tos_bitmap.c
+ 1
+ ..\..\..\..\kernel\core\tos_bitmap.c
+
+
+ tos_char_fifo.c
+ 1
+ ..\..\..\..\kernel\core\tos_char_fifo.c
+
+
+ tos_completion.c
+ 1
+ ..\..\..\..\kernel\core\tos_completion.c
+
+
+ tos_countdownlatch.c
+ 1
+ ..\..\..\..\kernel\core\tos_countdownlatch.c
+
+
+ tos_event.c
+ 1
+ ..\..\..\..\kernel\core\tos_event.c
+
+
+ tos_global.c
+ 1
+ ..\..\..\..\kernel\core\tos_global.c
+
+
+ tos_mail_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_mail_queue.c
+
+
+ tos_message_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_message_queue.c
+
+
+ tos_mmblk.c
+ 1
+ ..\..\..\..\kernel\core\tos_mmblk.c
+
+
+ tos_mmheap.c
+ 1
+ ..\..\..\..\kernel\core\tos_mmheap.c
+
+
+ tos_mutex.c
+ 1
+ ..\..\..\..\kernel\core\tos_mutex.c
+
+
+ tos_pend.c
+ 1
+ ..\..\..\..\kernel\core\tos_pend.c
+
+
+ tos_priority_mail_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_priority_mail_queue.c
+
+
+ tos_priority_message_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_priority_message_queue.c
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+
+ tos_priority_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_priority_queue.c
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+ tos_ring_queue.c
+ 1
+ ..\..\..\..\kernel\core\tos_ring_queue.c
+
+
+ tos_robin.c
+ 1
+ ..\..\..\..\kernel\core\tos_robin.c
+
+
+ tos_rwlock.c
+ 1
+ ..\..\..\..\kernel\core\tos_rwlock.c
+
+
+ tos_sched.c
+ 1
+ ..\..\..\..\kernel\core\tos_sched.c
+
+
+ tos_sem.c
+ 1
+ ..\..\..\..\kernel\core\tos_sem.c
+
+
+ tos_stopwatch.c
+ 1
+ ..\..\..\..\kernel\core\tos_stopwatch.c
+
+
+ tos_sys.c
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+
+ tos_task.c
+ 1
+ ..\..\..\..\kernel\core\tos_task.c
+
+
+ tos_tick.c
+ 1
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+
+
+ tos_time.c
+ 1
+ ..\..\..\..\kernel\core\tos_time.c
+
+
+ tos_timer.c
+ 1
+ ..\..\..\..\kernel\core\tos_timer.c
+
+
+
+
+ config
+
+
+ tos_config.h
+ 5
+ ..\..\TOS-CONFIG\tos_config.h
+
+
+
+
+ hardware
+
+
+ w25q64.c
+ 1
+ ..\..\BSP\Hardware\W25QXX-SPI\w25q64.c
+
+
+
+
+ littlefs
+
+
+ lfs.c
+ 1
+ ..\..\..\..\components\fs\littlefs\3rdparty\lfs.c
+
+
+ lfs_util.c
+ 1
+ ..\..\..\..\components\fs\littlefs\3rdparty\lfs_util.c
+
+
+
+
+
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+
+
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+
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+ <Project Info>
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diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_flexspi_nor.ini b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_flexspi_nor.ini
new file mode 100644
index 00000000..35aa16c4
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_flexspi_nor.ini
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2018-2020 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+FUNC void _loadDcdcTrim(void)
+{
+ unsigned int dcdc_trim_loaded;
+ unsigned long ocotp_base;
+ unsigned long ocotp_fuse_bank0_base;
+ unsigned long dcdc_base;
+ unsigned long reg;
+ unsigned long trim_value;
+ unsigned int index;
+
+ ocotp_base = 0x401F4000;
+ ocotp_fuse_bank0_base = ocotp_base + 0x400;
+ dcdc_base = 0x40080000;
+
+ dcdc_trim_loaded = 0;
+
+ reg = _RDWORD(ocotp_fuse_bank0_base + 0x90);
+ if (reg & (1<<10))
+ {
+ // DCDC: REG0->VBG_TRM
+ trim_value = (reg & (0x1F << 11)) >> 11;
+ reg = (_RDWORD(dcdc_base + 0x4) & ~(0x1F << 24)) | (trim_value << 24);
+ _WDWORD(dcdc_base + 0x4, reg);
+ dcdc_trim_loaded = 1;
+ }
+
+ reg = _RDWORD(ocotp_fuse_bank0_base + 0x80);
+ if (reg & (1<<30))
+ {
+ index = (reg & (3 << 28)) >> 28;
+ if (index < 4)
+ {
+ // DCDC: REG3->TRG
+ reg = (_RDWORD(dcdc_base + 0xC) & ~(0x1F)) | ((0xF + index));
+ _WDWORD(dcdc_base + 0xC, reg);
+ dcdc_trim_loaded = 1;
+ }
+ }
+
+ if (dcdc_trim_loaded)
+ {
+ // delay about 400us till dcdc is stable.
+ _Sleep_(1);
+ }
+}
+
+FUNC void restoreFlexRAM(void)
+{
+ unsigned int value;
+ unsigned int base;
+
+ base = 0x400AC000;
+
+ value = _RDWORD(base + 0x44);
+ value &= ~(0xFFFFFFFF);
+ value |= 0x55AFFA55;
+ _WDWORD(base + 0x44, value);
+
+ value = _RDWORD(base + 0x40);
+ value |= (1 << 2);
+ _WDWORD(base + 0x40, value);
+}
+
+FUNC void Setup (void) {
+ _loadDcdcTrim();
+ SP = _RDWORD(0x60002000); // Setup Stack Pointer
+ PC = _RDWORD(0x60002004); // Setup Program Counter
+ _WDWORD(0xE000ED08, 0x60002000); // Setup Vector Table Offset Register
+}
+
+FUNC void OnResetExec (void) { // executes upon software RESET
+ restoreFlexRAM();
+ Setup(); // Setup for Running
+}
+
+restoreFlexRAM();
+
+LOAD %L INCREMENTAL // Download
+
+Setup(); // Setup for Running
+
+// g, main
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_ram.ini b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_ram.ini
new file mode 100644
index 00000000..240e149b
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/KEIL/tosevbrt1062_ram.ini
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2018-2020 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+FUNC void _loadDcdcTrim(void)
+{
+ unsigned int dcdc_trim_loaded;
+ unsigned long ocotp_base;
+ unsigned long ocotp_fuse_bank0_base;
+ unsigned long dcdc_base;
+ unsigned long reg;
+ unsigned long trim_value;
+ unsigned int index;
+
+ ocotp_base = 0x401F4000;
+ ocotp_fuse_bank0_base = ocotp_base + 0x400;
+ dcdc_base = 0x40080000;
+
+ dcdc_trim_loaded = 0;
+
+ reg = _RDWORD(ocotp_fuse_bank0_base + 0x90);
+ if (reg & (1<<10))
+ {
+ // DCDC: REG0->VBG_TRM
+ trim_value = (reg & (0x1F << 11)) >> 11;
+ reg = (_RDWORD(dcdc_base + 0x4) & ~(0x1F << 24)) | (trim_value << 24);
+ _WDWORD(dcdc_base + 0x4, reg);
+ dcdc_trim_loaded = 1;
+ }
+
+ reg = _RDWORD(ocotp_fuse_bank0_base + 0x80);
+ if (reg & (1<<30))
+ {
+ index = (reg & (3 << 28)) >> 28;
+ if (index < 4)
+ {
+ // DCDC: REG3->TRG
+ reg = (_RDWORD(dcdc_base + 0xC) & ~(0x1F)) | ((0xF + index));
+ _WDWORD(dcdc_base + 0xC, reg);
+ dcdc_trim_loaded = 1;
+ }
+ }
+
+ if (dcdc_trim_loaded)
+ {
+ // delay about 400us till dcdc is stable.
+ _Sleep_(1);
+ }
+}
+
+FUNC void restoreFlexRAM(void)
+{
+ unsigned int value;
+ unsigned int base;
+
+ base = 0x400AC000;
+
+ value = _RDWORD(base + 0x44);
+ value &= ~(0xFFFFFFFF);
+ value |= 0x55AFFA55;
+ _WDWORD(base + 0x44, value);
+
+ value = _RDWORD(base + 0x40);
+ value |= (1 << 2);
+ _WDWORD(base + 0x40, value);
+}
+
+FUNC void Setup (void) {
+ _loadDcdcTrim();
+ SP = _RDWORD(0x00000000); // Setup Stack Pointer
+ PC = _RDWORD(0x00000004); // Setup Program Counter
+ _WDWORD(0xE000ED08, 0x00000000); // Setup Vector Table Offset Register
+}
+
+FUNC void OnResetExec (void) { // executes upon software RESET
+ restoreFlexRAM();
+ Setup(); // Setup for Running
+}
+
+restoreFlexRAM();
+
+LOAD %L INCREMENTAL // Download
+
+Setup(); // Setup for Running
+
+// g, main
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.c
new file mode 100644
index 00000000..83941eee
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright 2018-2019 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "fsl_common.h"
+#include "fsl_debug_console.h"
+#include "board.h"
+#if defined(SDK_I2C_BASED_COMPONENT_USED) && SDK_I2C_BASED_COMPONENT_USED
+#include "fsl_lpi2c.h"
+#endif /* SDK_I2C_BASED_COMPONENT_USED */
+#include "fsl_iomuxc.h"
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+/* Get debug console frequency. */
+uint32_t BOARD_DebugConsoleSrcFreq(void)
+{
+ uint32_t freq;
+
+ /* To make it simple, we assume default PLL and divider settings, and the only variable
+ from application is use PLL3 source or OSC source */
+ if (CLOCK_GetMux(kCLOCK_UartMux) == 0) /* PLL3 div6 80M */
+ {
+ freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U);
+ }
+ else
+ {
+ freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U);
+ }
+
+ return freq;
+}
+
+/* Initialize debug console. */
+void BOARD_InitDebugConsole(void)
+{
+ uint32_t uartClkSrcFreq = BOARD_DebugConsoleSrcFreq();
+
+ DbgConsole_Init(BOARD_DEBUG_UART_INSTANCE, BOARD_DEBUG_UART_BAUDRATE, BOARD_DEBUG_UART_TYPE, uartClkSrcFreq);
+}
+
+#if defined(SDK_I2C_BASED_COMPONENT_USED) && SDK_I2C_BASED_COMPONENT_USED
+void BOARD_LPI2C_Init(LPI2C_Type *base, uint32_t clkSrc_Hz)
+{
+ lpi2c_master_config_t lpi2cConfig = {0};
+
+ /*
+ * lpi2cConfig.debugEnable = false;
+ * lpi2cConfig.ignoreAck = false;
+ * lpi2cConfig.pinConfig = kLPI2C_2PinOpenDrain;
+ * lpi2cConfig.baudRate_Hz = 100000U;
+ * lpi2cConfig.busIdleTimeout_ns = 0;
+ * lpi2cConfig.pinLowTimeout_ns = 0;
+ * lpi2cConfig.sdaGlitchFilterWidth_ns = 0;
+ * lpi2cConfig.sclGlitchFilterWidth_ns = 0;
+ */
+ LPI2C_MasterGetDefaultConfig(&lpi2cConfig);
+ LPI2C_MasterInit(base, &lpi2cConfig, clkSrc_Hz);
+}
+
+status_t BOARD_LPI2C_Send(LPI2C_Type *base,
+ uint8_t deviceAddress,
+ uint32_t subAddress,
+ uint8_t subAddressSize,
+ uint8_t *txBuff,
+ uint8_t txBuffSize)
+{
+ lpi2c_master_transfer_t xfer;
+
+ xfer.flags = kLPI2C_TransferDefaultFlag;
+ xfer.slaveAddress = deviceAddress;
+ xfer.direction = kLPI2C_Write;
+ xfer.subaddress = subAddress;
+ xfer.subaddressSize = subAddressSize;
+ xfer.data = txBuff;
+ xfer.dataSize = txBuffSize;
+
+ return LPI2C_MasterTransferBlocking(base, &xfer);
+}
+
+status_t BOARD_LPI2C_Receive(LPI2C_Type *base,
+ uint8_t deviceAddress,
+ uint32_t subAddress,
+ uint8_t subAddressSize,
+ uint8_t *rxBuff,
+ uint8_t rxBuffSize)
+{
+ lpi2c_master_transfer_t xfer;
+
+ xfer.flags = kLPI2C_TransferDefaultFlag;
+ xfer.slaveAddress = deviceAddress;
+ xfer.direction = kLPI2C_Read;
+ xfer.subaddress = subAddress;
+ xfer.subaddressSize = subAddressSize;
+ xfer.data = rxBuff;
+ xfer.dataSize = rxBuffSize;
+
+ return LPI2C_MasterTransferBlocking(base, &xfer);
+}
+
+status_t BOARD_LPI2C_SendSCCB(LPI2C_Type *base,
+ uint8_t deviceAddress,
+ uint32_t subAddress,
+ uint8_t subAddressSize,
+ uint8_t *txBuff,
+ uint8_t txBuffSize)
+{
+ lpi2c_master_transfer_t xfer;
+
+ xfer.flags = kLPI2C_TransferDefaultFlag;
+ xfer.slaveAddress = deviceAddress;
+ xfer.direction = kLPI2C_Write;
+ xfer.subaddress = subAddress;
+ xfer.subaddressSize = subAddressSize;
+ xfer.data = txBuff;
+ xfer.dataSize = txBuffSize;
+
+ return LPI2C_MasterTransferBlocking(base, &xfer);
+}
+
+status_t BOARD_LPI2C_ReceiveSCCB(LPI2C_Type *base,
+ uint8_t deviceAddress,
+ uint32_t subAddress,
+ uint8_t subAddressSize,
+ uint8_t *rxBuff,
+ uint8_t rxBuffSize)
+{
+ status_t status;
+ lpi2c_master_transfer_t xfer;
+
+ xfer.flags = kLPI2C_TransferDefaultFlag;
+ xfer.slaveAddress = deviceAddress;
+ xfer.direction = kLPI2C_Write;
+ xfer.subaddress = subAddress;
+ xfer.subaddressSize = subAddressSize;
+ xfer.data = NULL;
+ xfer.dataSize = 0;
+
+ status = LPI2C_MasterTransferBlocking(base, &xfer);
+
+ if (kStatus_Success == status)
+ {
+ xfer.subaddressSize = 0;
+ xfer.direction = kLPI2C_Read;
+ xfer.data = rxBuff;
+ xfer.dataSize = rxBuffSize;
+
+ status = LPI2C_MasterTransferBlocking(base, &xfer);
+ }
+
+ return status;
+}
+
+void BOARD_Accel_I2C_Init(void)
+{
+ BOARD_LPI2C_Init(BOARD_ACCEL_I2C_BASEADDR, BOARD_ACCEL_I2C_CLOCK_FREQ);
+}
+
+status_t BOARD_Accel_I2C_Send(uint8_t deviceAddress, uint32_t subAddress, uint8_t subaddressSize, uint32_t txBuff)
+{
+ uint8_t data = (uint8_t)txBuff;
+
+ return BOARD_LPI2C_Send(BOARD_ACCEL_I2C_BASEADDR, deviceAddress, subAddress, subaddressSize, &data, 1);
+}
+
+status_t BOARD_Accel_I2C_Receive(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subaddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
+{
+ return BOARD_LPI2C_Receive(BOARD_ACCEL_I2C_BASEADDR, deviceAddress, subAddress, subaddressSize, rxBuff, rxBuffSize);
+}
+
+void BOARD_Codec_I2C_Init(void)
+{
+ BOARD_LPI2C_Init(BOARD_CODEC_I2C_BASEADDR, BOARD_CODEC_I2C_CLOCK_FREQ);
+}
+
+status_t BOARD_Codec_I2C_Send(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, const uint8_t *txBuff, uint8_t txBuffSize)
+{
+ return BOARD_LPI2C_Send(BOARD_CODEC_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, (uint8_t *)txBuff,
+ txBuffSize);
+}
+
+status_t BOARD_Codec_I2C_Receive(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
+{
+ return BOARD_LPI2C_Receive(BOARD_CODEC_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, rxBuff, rxBuffSize);
+}
+
+void BOARD_Camera_I2C_Init(void)
+{
+ CLOCK_SetMux(kCLOCK_Lpi2cMux, BOARD_CAMERA_I2C_CLOCK_SOURCE_SELECT);
+ CLOCK_SetDiv(kCLOCK_Lpi2cDiv, BOARD_CAMERA_I2C_CLOCK_SOURCE_DIVIDER);
+ BOARD_LPI2C_Init(BOARD_CAMERA_I2C_BASEADDR, BOARD_CAMERA_I2C_CLOCK_FREQ);
+}
+
+status_t BOARD_Camera_I2C_Send(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, const uint8_t *txBuff, uint8_t txBuffSize)
+{
+ return BOARD_LPI2C_Send(BOARD_CAMERA_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, (uint8_t *)txBuff,
+ txBuffSize);
+}
+
+status_t BOARD_Camera_I2C_Receive(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
+{
+ return BOARD_LPI2C_Receive(BOARD_CAMERA_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, rxBuff,
+ rxBuffSize);
+}
+
+status_t BOARD_Camera_I2C_SendSCCB(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, const uint8_t *txBuff, uint8_t txBuffSize)
+{
+ return BOARD_LPI2C_SendSCCB(BOARD_CAMERA_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, (uint8_t *)txBuff,
+ txBuffSize);
+}
+
+status_t BOARD_Camera_I2C_ReceiveSCCB(
+ uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
+{
+ return BOARD_LPI2C_ReceiveSCCB(BOARD_CAMERA_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, rxBuff,
+ rxBuffSize);
+}
+#endif /* SDK_I2C_BASED_COMPONENT_USED */
+
+/* MPU configuration. */
+void BOARD_ConfigMPU(void)
+{
+#if defined(__CC_ARM) || defined(__ARMCC_VERSION)
+ extern uint32_t Image$$RW_m_ncache$$Base[];
+ /* RW_m_ncache_unused is a auxiliary region which is used to get the whole size of noncache section */
+ extern uint32_t Image$$RW_m_ncache_unused$$Base[];
+ extern uint32_t Image$$RW_m_ncache_unused$$ZI$$Limit[];
+ uint32_t nonCacheStart = (uint32_t)Image$$RW_m_ncache$$Base;
+ uint32_t size = ((uint32_t)Image$$RW_m_ncache_unused$$Base == nonCacheStart) ?
+ 0 :
+ ((uint32_t)Image$$RW_m_ncache_unused$$ZI$$Limit - nonCacheStart);
+#elif defined(__MCUXPRESSO)
+ extern uint32_t __base_NCACHE_REGION;
+ extern uint32_t __top_NCACHE_REGION;
+ uint32_t nonCacheStart = (uint32_t)(&__base_NCACHE_REGION);
+ uint32_t size = (uint32_t)(&__top_NCACHE_REGION) - nonCacheStart;
+#elif defined(__ICCARM__) || defined(__GNUC__)
+ extern uint32_t __NCACHE_REGION_START[];
+ extern uint32_t __NCACHE_REGION_SIZE[];
+ uint32_t nonCacheStart = (uint32_t)__NCACHE_REGION_START;
+ uint32_t size = (uint32_t)__NCACHE_REGION_SIZE;
+#endif
+ volatile uint32_t i = 0;
+
+ /* Disable I cache and D cache */
+ if (SCB_CCR_IC_Msk == (SCB_CCR_IC_Msk & SCB->CCR))
+ {
+ SCB_DisableICache();
+ }
+ if (SCB_CCR_DC_Msk == (SCB_CCR_DC_Msk & SCB->CCR))
+ {
+ SCB_DisableDCache();
+ }
+
+ /* Disable MPU */
+ ARM_MPU_Disable();
+
+ /* MPU configure:
+ * Use ARM_MPU_RASR(DisableExec, AccessPermission, TypeExtField, IsShareable, IsCacheable, IsBufferable,
+ * SubRegionDisable, Size)
+ * API in mpu_armv7.h.
+ * param DisableExec Instruction access (XN) disable bit,0=instruction fetches enabled, 1=instruction fetches
+ * disabled.
+ * param AccessPermission Data access permissions, allows you to configure read/write access for User and
+ * Privileged mode.
+ * Use MACROS defined in mpu_armv7.h:
+ * ARM_MPU_AP_NONE/ARM_MPU_AP_PRIV/ARM_MPU_AP_URO/ARM_MPU_AP_FULL/ARM_MPU_AP_PRO/ARM_MPU_AP_RO
+ * Combine TypeExtField/IsShareable/IsCacheable/IsBufferable to configure MPU memory access attributes.
+ * TypeExtField IsShareable IsCacheable IsBufferable Memory Attribtue Shareability Cache
+ * 0 x 0 0 Strongly Ordered shareable
+ * 0 x 0 1 Device shareable
+ * 0 0 1 0 Normal not shareable Outer and inner write
+ * through no write allocate
+ * 0 0 1 1 Normal not shareable Outer and inner write
+ * back no write allocate
+ * 0 1 1 0 Normal shareable Outer and inner write
+ * through no write allocate
+ * 0 1 1 1 Normal shareable Outer and inner write
+ * back no write allocate
+ * 1 0 0 0 Normal not shareable outer and inner
+ * noncache
+ * 1 1 0 0 Normal shareable outer and inner
+ * noncache
+ * 1 0 1 1 Normal not shareable outer and inner write
+ * back write/read acllocate
+ * 1 1 1 1 Normal shareable outer and inner write
+ * back write/read acllocate
+ * 2 x 0 0 Device not shareable
+ * Above are normal use settings, if your want to see more details or want to config different inner/outter cache
+ * policy.
+ * please refer to Table 4-55 /4-56 in arm cortex-M7 generic user guide
+ * param SubRegionDisable Sub-region disable field. 0=sub-region is enabled, 1=sub-region is disabled.
+ * param Size Region size of the region to be configured. use ARM_MPU_REGION_SIZE_xxx MACRO in
+ * mpu_armv7.h.
+ */
+
+ /*
+ * Add default region to deny access to whole address space to workaround speculative prefetch.
+ * Refer to Arm errata 1013783-B for more details.
+ *
+ */
+ /* Region 0 setting: Instruction access disabled, No data access permission. */
+ MPU->RBAR = ARM_MPU_RBAR(0, 0x00000000U);
+ MPU->RASR = ARM_MPU_RASR(1, ARM_MPU_AP_NONE, 2, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_4GB);
+
+ /* Region 1 setting: Memory with Device type, not shareable, non-cacheable. */
+ MPU->RBAR = ARM_MPU_RBAR(1, 0x80000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 2, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_512MB);
+
+ /* Region 2 setting: Memory with Device type, not shareable, non-cacheable. */
+ MPU->RBAR = ARM_MPU_RBAR(2, 0x60000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 2, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_512MB);
+
+#if defined(XIP_EXTERNAL_FLASH) && (XIP_EXTERNAL_FLASH == 1)
+ /* Region 3 setting: Memory with Normal type, not shareable, outer/inner write back. */
+ MPU->RBAR = ARM_MPU_RBAR(3, 0x60000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_RO, 0, 0, 1, 1, 0, ARM_MPU_REGION_SIZE_8MB);
+#endif
+
+ /* Region 4 setting: Memory with Device type, not shareable, non-cacheable. */
+ MPU->RBAR = ARM_MPU_RBAR(4, 0x00000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 2, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_1GB);
+
+ /* Region 5 setting: Memory with Normal type, not shareable, outer/inner write back */
+ MPU->RBAR = ARM_MPU_RBAR(5, 0x00000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 1, 1, 0, ARM_MPU_REGION_SIZE_128KB);
+
+ /* Region 6 setting: Memory with Normal type, not shareable, outer/inner write back */
+ MPU->RBAR = ARM_MPU_RBAR(6, 0x20000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 1, 1, 0, ARM_MPU_REGION_SIZE_128KB);
+
+ /* Region 7 setting: Memory with Normal type, not shareable, outer/inner write back */
+ MPU->RBAR = ARM_MPU_RBAR(7, 0x20200000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 1, 1, 0, ARM_MPU_REGION_SIZE_512KB);
+
+ /* Region 8 setting: Memory with Normal type, not shareable, outer/inner write back */
+ MPU->RBAR = ARM_MPU_RBAR(8, 0x20280000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 1, 1, 0, ARM_MPU_REGION_SIZE_256KB);
+
+ /* Region 9 setting: Memory with Normal type, not shareable, outer/inner write back */
+ MPU->RBAR = ARM_MPU_RBAR(9, 0x80000000U);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 0, 0, 1, 1, 0, ARM_MPU_REGION_SIZE_32MB);
+
+ while ((size >> i) > 0x1U)
+ {
+ i++;
+ }
+
+ if (i != 0)
+ {
+ /* The MPU region size should be 2^N, 5<=N<=32, region base should be multiples of size. */
+ assert(!(nonCacheStart % size));
+ assert(size == (uint32_t)(1 << i));
+ assert(i >= 5);
+
+ /* Region 10 setting: Memory with Normal type, not shareable, non-cacheable */
+ MPU->RBAR = ARM_MPU_RBAR(10, nonCacheStart);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 1, 0, 0, 0, 0, i - 1);
+ }
+
+ /* Region 10 setting: Memory with Device type, not shareable, non-cacheable */
+ MPU->RBAR = ARM_MPU_RBAR(11, 0x40000000);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 2, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_4MB);
+
+ /* Region 12 setting: Memory with Device type, not shareable, non-cacheable */
+ MPU->RBAR = ARM_MPU_RBAR(12, 0x42000000);
+ MPU->RASR = ARM_MPU_RASR(0, ARM_MPU_AP_FULL, 2, 0, 0, 0, 0, ARM_MPU_REGION_SIZE_1MB);
+
+ /* Enable MPU */
+ ARM_MPU_Enable(MPU_CTRL_PRIVDEFENA_Msk);
+
+ /* Enable I cache and D cache */
+ SCB_EnableDCache();
+ SCB_EnableICache();
+}
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.h b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.h
new file mode 100644
index 00000000..12395fb2
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/board.h
@@ -0,0 +1,220 @@
+/*
+ * Copyright 2018-2019 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+#include "clock_config.h"
+#include "fsl_common.h"
+#include "fsl_gpio.h"
+#include "fsl_clock.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+/*! @brief The board name */
+#define BOARD_NAME "MIMXRT1060-EVK"
+
+/* The UART to use for debug messages. */
+#define BOARD_DEBUG_UART_TYPE kSerialPort_Uart
+#define BOARD_DEBUG_UART_BASEADDR (uint32_t) LPUART1
+#define BOARD_DEBUG_UART_INSTANCE 1U
+
+#define BOARD_DEBUG_UART_CLK_FREQ BOARD_DebugConsoleSrcFreq()
+
+#define BOARD_UART_IRQ LPUART1_IRQn
+#define BOARD_UART_IRQ_HANDLER LPUART1_IRQHandler
+
+#ifndef BOARD_DEBUG_UART_BAUDRATE
+#define BOARD_DEBUG_UART_BAUDRATE (115200U)
+#endif /* BOARD_DEBUG_UART_BAUDRATE */
+
+/*! @brief The USER_LED used for board */
+#define LOGIC_LED_ON (0U)
+#define LOGIC_LED_OFF (1U)
+#ifndef BOARD_USER_LED_GPIO
+#define BOARD_USER_LED_GPIO GPIO3
+#endif
+#ifndef BOARD_USER_LED_GPIO_PIN
+#define BOARD_USER_LED_GPIO_PIN (2U)
+#endif
+
+#define USER_LED_INIT(output) \
+ GPIO_PinWrite(BOARD_USER_LED_GPIO, BOARD_USER_LED_GPIO_PIN, output); \
+ BOARD_USER_LED_GPIO->GDIR |= (1U << BOARD_USER_LED_GPIO_PIN) /*!< Enable target USER_LED */
+#define USER_LED_ON() \
+ GPIO_PortClear(BOARD_USER_LED_GPIO, 1U << BOARD_USER_LED_GPIO_PIN) /*!< Turn off target USER_LED */
+#define USER_LED_OFF() GPIO_PortSet(BOARD_USER_LED_GPIO, 1U << BOARD_USER_LED_GPIO_PIN) /*!OSC_CONFIG2 |= XTALOSC24M_OSC_CONFIG2_ENABLE_1M_MASK;
+ /* Use free 1MHz clock output. */
+ XTALOSC24M->OSC_CONFIG2 &= ~XTALOSC24M_OSC_CONFIG2_MUX_1M_MASK;
+ /* Set XTAL 24MHz clock frequency. */
+ CLOCK_SetXtalFreq(24000000U);
+ /* Enable XTAL 24MHz clock source. */
+ CLOCK_InitExternalClk(0);
+ /* Enable internal RC. */
+ CLOCK_InitRcOsc24M();
+ /* Switch clock source to external OSC. */
+ CLOCK_SwitchOsc(kCLOCK_XtalOsc);
+ /* Set Oscillator ready counter value. */
+ CCM->CCR = (CCM->CCR & (~CCM_CCR_OSCNT_MASK)) | CCM_CCR_OSCNT(127);
+ /* Setting PeriphClk2Mux and PeriphMux to provide stable clock before PLLs are initialed */
+ CLOCK_SetMux(kCLOCK_PeriphClk2Mux, 1); /* Set PERIPH_CLK2 MUX to OSC */
+ CLOCK_SetMux(kCLOCK_PeriphMux, 1); /* Set PERIPH_CLK MUX to PERIPH_CLK2 */
+ /* Setting the VDD_SOC to 1.275V. It is necessary to config AHB to 600Mhz. */
+ DCDC->REG3 = (DCDC->REG3 & (~DCDC_REG3_TRG_MASK)) | DCDC_REG3_TRG(0x13);
+ /* Waiting for DCDC_STS_DC_OK bit is asserted */
+ while (DCDC_REG0_STS_DC_OK_MASK != (DCDC_REG0_STS_DC_OK_MASK & DCDC->REG0))
+ {
+ }
+ /* Set AHB_PODF. */
+ CLOCK_SetDiv(kCLOCK_AhbDiv, 0);
+ /* Disable IPG clock gate. */
+ CLOCK_DisableClock(kCLOCK_Adc1);
+ CLOCK_DisableClock(kCLOCK_Adc2);
+ CLOCK_DisableClock(kCLOCK_Xbar1);
+ CLOCK_DisableClock(kCLOCK_Xbar2);
+ CLOCK_DisableClock(kCLOCK_Xbar3);
+ /* Set IPG_PODF. */
+ CLOCK_SetDiv(kCLOCK_IpgDiv, 3);
+ /* Set ARM_PODF. */
+ CLOCK_SetDiv(kCLOCK_ArmDiv, 1);
+ /* Set PERIPH_CLK2_PODF. */
+ CLOCK_SetDiv(kCLOCK_PeriphClk2Div, 0);
+ /* Disable PERCLK clock gate. */
+ CLOCK_DisableClock(kCLOCK_Gpt1);
+ CLOCK_DisableClock(kCLOCK_Gpt1S);
+ CLOCK_DisableClock(kCLOCK_Gpt2);
+ CLOCK_DisableClock(kCLOCK_Gpt2S);
+ CLOCK_DisableClock(kCLOCK_Pit);
+ /* Set PERCLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_PerclkDiv, 1);
+ /* Disable USDHC1 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Usdhc1);
+ /* Set USDHC1_PODF. */
+ CLOCK_SetDiv(kCLOCK_Usdhc1Div, 1);
+ /* Set Usdhc1 clock source. */
+ CLOCK_SetMux(kCLOCK_Usdhc1Mux, 0);
+ /* Disable USDHC2 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Usdhc2);
+ /* Set USDHC2_PODF. */
+ CLOCK_SetDiv(kCLOCK_Usdhc2Div, 1);
+ /* Set Usdhc2 clock source. */
+ CLOCK_SetMux(kCLOCK_Usdhc2Mux, 0);
+ /* In SDK projects, SDRAM (configured by SEMC) will be initialized in either debug script or dcd.
+ * With this macro SKIP_SYSCLK_INIT, system pll (selected to be SEMC source clock in SDK projects) will be left unchanged.
+ * Note: If another clock source is selected for SEMC, user may want to avoid changing that clock as well.*/
+#ifndef SKIP_SYSCLK_INIT
+ /* Disable Semc clock gate. */
+ CLOCK_DisableClock(kCLOCK_Semc);
+ /* Set SEMC_PODF. */
+ CLOCK_SetDiv(kCLOCK_SemcDiv, 7);
+ /* Set Semc alt clock source. */
+ CLOCK_SetMux(kCLOCK_SemcAltMux, 0);
+ /* Set Semc clock source. */
+ CLOCK_SetMux(kCLOCK_SemcMux, 0);
+#endif
+ /* In SDK projects, external flash (configured by FLEXSPI) will be initialized by dcd.
+ * With this macro XIP_EXTERNAL_FLASH, usb1 pll (selected to be FLEXSPI clock source in SDK projects) will be left unchanged.
+ * Note: If another clock source is selected for FLEXSPI, user may want to avoid changing that clock as well.*/
+#if !(defined(XIP_EXTERNAL_FLASH) && (XIP_EXTERNAL_FLASH == 1))
+ /* Disable Flexspi clock gate. */
+ CLOCK_DisableClock(kCLOCK_FlexSpi);
+ /* Set FLEXSPI_PODF. */
+ CLOCK_SetDiv(kCLOCK_FlexspiDiv, 1);
+ /* Set Flexspi clock source. */
+ CLOCK_SetMux(kCLOCK_FlexspiMux, 3);
+#endif
+ /* Disable Flexspi2 clock gate. */
+ CLOCK_DisableClock(kCLOCK_FlexSpi2);
+ /* Set FLEXSPI2_PODF. */
+ CLOCK_SetDiv(kCLOCK_Flexspi2Div, 1);
+ /* Set Flexspi2 clock source. */
+ CLOCK_SetMux(kCLOCK_Flexspi2Mux, 1);
+ /* Disable CSI clock gate. */
+ CLOCK_DisableClock(kCLOCK_Csi);
+ /* Set CSI_PODF. */
+ CLOCK_SetDiv(kCLOCK_CsiDiv, 1);
+ /* Set Csi clock source. */
+ CLOCK_SetMux(kCLOCK_CsiMux, 0);
+ /* Disable LPSPI clock gate. */
+ CLOCK_DisableClock(kCLOCK_Lpspi1);
+ CLOCK_DisableClock(kCLOCK_Lpspi2);
+ CLOCK_DisableClock(kCLOCK_Lpspi3);
+ CLOCK_DisableClock(kCLOCK_Lpspi4);
+ /* Set LPSPI_PODF. */
+ CLOCK_SetDiv(kCLOCK_LpspiDiv, 4);
+ /* Set Lpspi clock source. */
+ CLOCK_SetMux(kCLOCK_LpspiMux, 2);
+ /* Disable TRACE clock gate. */
+ CLOCK_DisableClock(kCLOCK_Trace);
+ /* Set TRACE_PODF. */
+ CLOCK_SetDiv(kCLOCK_TraceDiv, 3);
+ /* Set Trace clock source. */
+ CLOCK_SetMux(kCLOCK_TraceMux, 0);
+ /* Disable SAI1 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Sai1);
+ /* Set SAI1_CLK_PRED. */
+ CLOCK_SetDiv(kCLOCK_Sai1PreDiv, 3);
+ /* Set SAI1_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Sai1Div, 1);
+ /* Set Sai1 clock source. */
+ CLOCK_SetMux(kCLOCK_Sai1Mux, 0);
+ /* Disable SAI2 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Sai2);
+ /* Set SAI2_CLK_PRED. */
+ CLOCK_SetDiv(kCLOCK_Sai2PreDiv, 3);
+ /* Set SAI2_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Sai2Div, 1);
+ /* Set Sai2 clock source. */
+ CLOCK_SetMux(kCLOCK_Sai2Mux, 0);
+ /* Disable SAI3 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Sai3);
+ /* Set SAI3_CLK_PRED. */
+ CLOCK_SetDiv(kCLOCK_Sai3PreDiv, 3);
+ /* Set SAI3_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Sai3Div, 1);
+ /* Set Sai3 clock source. */
+ CLOCK_SetMux(kCLOCK_Sai3Mux, 0);
+ /* Disable Lpi2c clock gate. */
+ CLOCK_DisableClock(kCLOCK_Lpi2c1);
+ CLOCK_DisableClock(kCLOCK_Lpi2c2);
+ CLOCK_DisableClock(kCLOCK_Lpi2c3);
+ /* Set LPI2C_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Lpi2cDiv, 0);
+ /* Set Lpi2c clock source. */
+ CLOCK_SetMux(kCLOCK_Lpi2cMux, 0);
+ /* Disable CAN clock gate. */
+ CLOCK_DisableClock(kCLOCK_Can1);
+ CLOCK_DisableClock(kCLOCK_Can2);
+ CLOCK_DisableClock(kCLOCK_Can3);
+ CLOCK_DisableClock(kCLOCK_Can1S);
+ CLOCK_DisableClock(kCLOCK_Can2S);
+ CLOCK_DisableClock(kCLOCK_Can3S);
+ /* Set CAN_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_CanDiv, 1);
+ /* Set Can clock source. */
+ CLOCK_SetMux(kCLOCK_CanMux, 2);
+ /* Disable UART clock gate. */
+ CLOCK_DisableClock(kCLOCK_Lpuart1);
+ CLOCK_DisableClock(kCLOCK_Lpuart2);
+ CLOCK_DisableClock(kCLOCK_Lpuart3);
+ CLOCK_DisableClock(kCLOCK_Lpuart4);
+ CLOCK_DisableClock(kCLOCK_Lpuart5);
+ CLOCK_DisableClock(kCLOCK_Lpuart6);
+ CLOCK_DisableClock(kCLOCK_Lpuart7);
+ CLOCK_DisableClock(kCLOCK_Lpuart8);
+ /* Set UART_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_UartDiv, 0);
+ /* Set Uart clock source. */
+ CLOCK_SetMux(kCLOCK_UartMux, 0);
+ /* Disable LCDIF clock gate. */
+ CLOCK_DisableClock(kCLOCK_LcdPixel);
+ /* Set LCDIF_PRED. */
+ CLOCK_SetDiv(kCLOCK_LcdifPreDiv, 1);
+ /* Set LCDIF_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_LcdifDiv, 3);
+ /* Set Lcdif pre clock source. */
+ CLOCK_SetMux(kCLOCK_LcdifPreMux, 5);
+ /* Disable SPDIF clock gate. */
+ CLOCK_DisableClock(kCLOCK_Spdif);
+ /* Set SPDIF0_CLK_PRED. */
+ CLOCK_SetDiv(kCLOCK_Spdif0PreDiv, 1);
+ /* Set SPDIF0_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Spdif0Div, 7);
+ /* Set Spdif clock source. */
+ CLOCK_SetMux(kCLOCK_SpdifMux, 3);
+ /* Disable Flexio1 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Flexio1);
+ /* Set FLEXIO1_CLK_PRED. */
+ CLOCK_SetDiv(kCLOCK_Flexio1PreDiv, 1);
+ /* Set FLEXIO1_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Flexio1Div, 7);
+ /* Set Flexio1 clock source. */
+ CLOCK_SetMux(kCLOCK_Flexio1Mux, 3);
+ /* Disable Flexio2 clock gate. */
+ CLOCK_DisableClock(kCLOCK_Flexio2);
+ /* Set FLEXIO2_CLK_PRED. */
+ CLOCK_SetDiv(kCLOCK_Flexio2PreDiv, 1);
+ /* Set FLEXIO2_CLK_PODF. */
+ CLOCK_SetDiv(kCLOCK_Flexio2Div, 7);
+ /* Set Flexio2 clock source. */
+ CLOCK_SetMux(kCLOCK_Flexio2Mux, 3);
+ /* Set Pll3 sw clock source. */
+ CLOCK_SetMux(kCLOCK_Pll3SwMux, 0);
+ /* Init ARM PLL. */
+ CLOCK_InitArmPll(&armPllConfig_BOARD_BootClockRUN);
+ /* In SDK projects, SDRAM (configured by SEMC) will be initialized in either debug script or dcd.
+ * With this macro SKIP_SYSCLK_INIT, system pll (selected to be SEMC source clock in SDK projects) will be left unchanged.
+ * Note: If another clock source is selected for SEMC, user may want to avoid changing that clock as well.*/
+#ifndef SKIP_SYSCLK_INIT
+#if defined(XIP_BOOT_HEADER_DCD_ENABLE) && (XIP_BOOT_HEADER_DCD_ENABLE == 1)
+ #warning "SKIP_SYSCLK_INIT should be defined to keep system pll (selected to be SEMC source clock in SDK projects) unchanged."
+#endif
+ /* Init System PLL. */
+ CLOCK_InitSysPll(&sysPllConfig_BOARD_BootClockRUN);
+ /* Init System pfd0. */
+ CLOCK_InitSysPfd(kCLOCK_Pfd0, 27);
+ /* Init System pfd1. */
+ CLOCK_InitSysPfd(kCLOCK_Pfd1, 16);
+ /* Init System pfd2. */
+ CLOCK_InitSysPfd(kCLOCK_Pfd2, 24);
+ /* Init System pfd3. */
+ CLOCK_InitSysPfd(kCLOCK_Pfd3, 16);
+#endif
+ /* In SDK projects, external flash (configured by FLEXSPI) will be initialized by dcd.
+ * With this macro XIP_EXTERNAL_FLASH, usb1 pll (selected to be FLEXSPI clock source in SDK projects) will be left unchanged.
+ * Note: If another clock source is selected for FLEXSPI, user may want to avoid changing that clock as well.*/
+#if !(defined(XIP_EXTERNAL_FLASH) && (XIP_EXTERNAL_FLASH == 1))
+ /* Init Usb1 PLL. */
+ CLOCK_InitUsb1Pll(&usb1PllConfig_BOARD_BootClockRUN);
+ /* Init Usb1 pfd0. */
+ CLOCK_InitUsb1Pfd(kCLOCK_Pfd0, 33);
+ /* Init Usb1 pfd1. */
+ CLOCK_InitUsb1Pfd(kCLOCK_Pfd1, 16);
+ /* Init Usb1 pfd2. */
+ CLOCK_InitUsb1Pfd(kCLOCK_Pfd2, 17);
+ /* Init Usb1 pfd3. */
+ CLOCK_InitUsb1Pfd(kCLOCK_Pfd3, 19);
+ /* Disable Usb1 PLL output for USBPHY1. */
+ CCM_ANALOG->PLL_USB1 &= ~CCM_ANALOG_PLL_USB1_EN_USB_CLKS_MASK;
+#endif
+ /* DeInit Audio PLL. */
+ CLOCK_DeinitAudioPll();
+ /* Bypass Audio PLL. */
+ CLOCK_SetPllBypass(CCM_ANALOG, kCLOCK_PllAudio, 1);
+ /* Set divider for Audio PLL. */
+ CCM_ANALOG->MISC2 &= ~CCM_ANALOG_MISC2_AUDIO_DIV_LSB_MASK;
+ CCM_ANALOG->MISC2 &= ~CCM_ANALOG_MISC2_AUDIO_DIV_MSB_MASK;
+ /* Enable Audio PLL output. */
+ CCM_ANALOG->PLL_AUDIO |= CCM_ANALOG_PLL_AUDIO_ENABLE_MASK;
+ /* Init Video PLL. */
+ uint32_t pllVideo;
+ /* Disable Video PLL output before initial Video PLL. */
+ CCM_ANALOG->PLL_VIDEO &= ~CCM_ANALOG_PLL_VIDEO_ENABLE_MASK;
+ /* Bypass PLL first */
+ CCM_ANALOG->PLL_VIDEO = (CCM_ANALOG->PLL_VIDEO & (~CCM_ANALOG_PLL_VIDEO_BYPASS_CLK_SRC_MASK)) |
+ CCM_ANALOG_PLL_VIDEO_BYPASS_MASK | CCM_ANALOG_PLL_VIDEO_BYPASS_CLK_SRC(0);
+ CCM_ANALOG->PLL_VIDEO_NUM = CCM_ANALOG_PLL_VIDEO_NUM_A(0);
+ CCM_ANALOG->PLL_VIDEO_DENOM = CCM_ANALOG_PLL_VIDEO_DENOM_B(1);
+ pllVideo = (CCM_ANALOG->PLL_VIDEO & (~(CCM_ANALOG_PLL_VIDEO_DIV_SELECT_MASK | CCM_ANALOG_PLL_VIDEO_POWERDOWN_MASK))) |
+ CCM_ANALOG_PLL_VIDEO_ENABLE_MASK |CCM_ANALOG_PLL_VIDEO_DIV_SELECT(31);
+ pllVideo |= CCM_ANALOG_PLL_VIDEO_POST_DIV_SELECT(1);
+ CCM_ANALOG->MISC2 = (CCM_ANALOG->MISC2 & (~CCM_ANALOG_MISC2_VIDEO_DIV_MASK)) | CCM_ANALOG_MISC2_VIDEO_DIV(3);
+ CCM_ANALOG->PLL_VIDEO = pllVideo;
+ while ((CCM_ANALOG->PLL_VIDEO & CCM_ANALOG_PLL_VIDEO_LOCK_MASK) == 0)
+ {
+ }
+ /* Disable bypass for Video PLL. */
+ CLOCK_SetPllBypass(CCM_ANALOG, kCLOCK_PllVideo, 0);
+ /* DeInit Enet PLL. */
+ CLOCK_DeinitEnetPll();
+ /* Bypass Enet PLL. */
+ CLOCK_SetPllBypass(CCM_ANALOG, kCLOCK_PllEnet, 1);
+ /* Set Enet output divider. */
+ CCM_ANALOG->PLL_ENET = (CCM_ANALOG->PLL_ENET & (~CCM_ANALOG_PLL_ENET_DIV_SELECT_MASK)) | CCM_ANALOG_PLL_ENET_DIV_SELECT(1);
+ /* Enable Enet output. */
+ CCM_ANALOG->PLL_ENET |= CCM_ANALOG_PLL_ENET_ENABLE_MASK;
+ /* Set Enet2 output divider. */
+ CCM_ANALOG->PLL_ENET = (CCM_ANALOG->PLL_ENET & (~CCM_ANALOG_PLL_ENET_ENET2_DIV_SELECT_MASK)) | CCM_ANALOG_PLL_ENET_ENET2_DIV_SELECT(0);
+ /* Enable Enet2 output. */
+ CCM_ANALOG->PLL_ENET |= CCM_ANALOG_PLL_ENET_ENET2_REF_EN_MASK;
+ /* Enable Enet25M output. */
+ CCM_ANALOG->PLL_ENET |= CCM_ANALOG_PLL_ENET_ENET_25M_REF_EN_MASK;
+ /* DeInit Usb2 PLL. */
+ CLOCK_DeinitUsb2Pll();
+ /* Bypass Usb2 PLL. */
+ CLOCK_SetPllBypass(CCM_ANALOG, kCLOCK_PllUsb2, 1);
+ /* Enable Usb2 PLL output. */
+ CCM_ANALOG->PLL_USB2 |= CCM_ANALOG_PLL_USB2_ENABLE_MASK;
+ /* Set preperiph clock source. */
+ CLOCK_SetMux(kCLOCK_PrePeriphMux, 3);
+ /* Set periph clock source. */
+ CLOCK_SetMux(kCLOCK_PeriphMux, 0);
+ /* Set periph clock2 clock source. */
+ CLOCK_SetMux(kCLOCK_PeriphClk2Mux, 0);
+ /* Set per clock source. */
+ CLOCK_SetMux(kCLOCK_PerclkMux, 0);
+ /* Set lvds1 clock source. */
+ CCM_ANALOG->MISC1 = (CCM_ANALOG->MISC1 & (~CCM_ANALOG_MISC1_LVDS1_CLK_SEL_MASK)) | CCM_ANALOG_MISC1_LVDS1_CLK_SEL(0);
+ /* Set clock out1 divider. */
+ CCM->CCOSR = (CCM->CCOSR & (~CCM_CCOSR_CLKO1_DIV_MASK)) | CCM_CCOSR_CLKO1_DIV(0);
+ /* Set clock out1 source. */
+ CCM->CCOSR = (CCM->CCOSR & (~CCM_CCOSR_CLKO1_SEL_MASK)) | CCM_CCOSR_CLKO1_SEL(1);
+ /* Set clock out2 divider. */
+ CCM->CCOSR = (CCM->CCOSR & (~CCM_CCOSR_CLKO2_DIV_MASK)) | CCM_CCOSR_CLKO2_DIV(0);
+ /* Set clock out2 source. */
+ CCM->CCOSR = (CCM->CCOSR & (~CCM_CCOSR_CLKO2_SEL_MASK)) | CCM_CCOSR_CLKO2_SEL(18);
+ /* Set clock out1 drives clock out1. */
+ CCM->CCOSR &= ~CCM_CCOSR_CLK_OUT_SEL_MASK;
+ /* Disable clock out1. */
+ CCM->CCOSR &= ~CCM_CCOSR_CLKO1_EN_MASK;
+ /* Disable clock out2. */
+ CCM->CCOSR &= ~CCM_CCOSR_CLKO2_EN_MASK;
+ /* Set SAI1 MCLK1 clock source. */
+ IOMUXC_SetSaiMClkClockSource(IOMUXC_GPR, kIOMUXC_GPR_SAI1MClk1Sel, 0);
+ /* Set SAI1 MCLK2 clock source. */
+ IOMUXC_SetSaiMClkClockSource(IOMUXC_GPR, kIOMUXC_GPR_SAI1MClk2Sel, 0);
+ /* Set SAI1 MCLK3 clock source. */
+ IOMUXC_SetSaiMClkClockSource(IOMUXC_GPR, kIOMUXC_GPR_SAI1MClk3Sel, 0);
+ /* Set SAI2 MCLK3 clock source. */
+ IOMUXC_SetSaiMClkClockSource(IOMUXC_GPR, kIOMUXC_GPR_SAI2MClk3Sel, 0);
+ /* Set SAI3 MCLK3 clock source. */
+ IOMUXC_SetSaiMClkClockSource(IOMUXC_GPR, kIOMUXC_GPR_SAI3MClk3Sel, 0);
+ /* Set MQS configuration. */
+ IOMUXC_MQSConfig(IOMUXC_GPR,kIOMUXC_MqsPwmOverSampleRate32, 0);
+ /* Set ENET Ref clock source. */
+ IOMUXC_GPR->GPR1 &= ~IOMUXC_GPR_GPR1_ENET1_TX_CLK_DIR_MASK;
+ /* Set ENET2 Ref clock source. */
+ IOMUXC_GPR->GPR1 &= ~IOMUXC_GPR_GPR1_ENET2_TX_CLK_DIR_MASK;
+ /* Set GPT1 High frequency reference clock source. */
+ IOMUXC_GPR->GPR5 &= ~IOMUXC_GPR_GPR5_VREF_1M_CLK_GPT1_MASK;
+ /* Set GPT2 High frequency reference clock source. */
+ IOMUXC_GPR->GPR5 &= ~IOMUXC_GPR_GPR5_VREF_1M_CLK_GPT2_MASK;
+ /* Set SystemCoreClock variable. */
+ SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK;
+}
+
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/clock_config.h b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/clock_config.h
new file mode 100644
index 00000000..3c59955b
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/clock_config.h
@@ -0,0 +1,121 @@
+#ifndef _CLOCK_CONFIG_H_
+#define _CLOCK_CONFIG_H_
+
+#include "fsl_common.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+#define BOARD_XTAL0_CLK_HZ 24000000U /*!< Board xtal0 frequency in Hz */
+
+#define BOARD_XTAL32K_CLK_HZ 32768U /*!< Board xtal32k frequency in Hz */
+/*******************************************************************************
+ ************************ BOARD_InitBootClocks function ************************
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus*/
+
+/*!
+ * @brief This function executes default configuration of clocks.
+ *
+ */
+void BOARD_InitBootClocks(void);
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus*/
+
+/*******************************************************************************
+ ********************** Configuration BOARD_BootClockRUN ***********************
+ ******************************************************************************/
+/*******************************************************************************
+ * Definitions for BOARD_BootClockRUN configuration
+ ******************************************************************************/
+#define BOARD_BOOTCLOCKRUN_CORE_CLOCK 600000000U /*!< Core clock frequency: 600000000Hz */
+
+/* Clock outputs (values are in Hz): */
+#define BOARD_BOOTCLOCKRUN_AHB_CLK_ROOT 600000000UL
+#define BOARD_BOOTCLOCKRUN_CAN_CLK_ROOT 40000000UL
+#define BOARD_BOOTCLOCKRUN_CKIL_SYNC_CLK_ROOT 32768UL
+#define BOARD_BOOTCLOCKRUN_CLKO1_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_CLKO2_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_CLK_1M 1000000UL
+#define BOARD_BOOTCLOCKRUN_CLK_24M 24000000UL
+#define BOARD_BOOTCLOCKRUN_CSI_CLK_ROOT 12000000UL
+#define BOARD_BOOTCLOCKRUN_ENET2_125M_CLK 1200000UL
+#define BOARD_BOOTCLOCKRUN_ENET2_REF_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_ENET2_TX_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_ENET_125M_CLK 2400000UL
+#define BOARD_BOOTCLOCKRUN_ENET_25M_REF_CLK 1200000UL
+#define BOARD_BOOTCLOCKRUN_ENET_REF_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_ENET_TX_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_FLEXIO1_CLK_ROOT 30000000UL
+#define BOARD_BOOTCLOCKRUN_FLEXIO2_CLK_ROOT 30000000UL
+#define BOARD_BOOTCLOCKRUN_FLEXSPI2_CLK_ROOT 130909090UL
+#define BOARD_BOOTCLOCKRUN_FLEXSPI_CLK_ROOT 130909090UL
+#define BOARD_BOOTCLOCKRUN_GPT1_IPG_CLK_HIGHFREQ 75000000UL
+#define BOARD_BOOTCLOCKRUN_GPT2_IPG_CLK_HIGHFREQ 75000000UL
+#define BOARD_BOOTCLOCKRUN_IPG_CLK_ROOT 150000000UL
+#define BOARD_BOOTCLOCKRUN_LCDIF_CLK_ROOT 67500000UL
+#define BOARD_BOOTCLOCKRUN_LPI2C_CLK_ROOT 60000000UL
+#define BOARD_BOOTCLOCKRUN_LPSPI_CLK_ROOT 105600000UL
+#define BOARD_BOOTCLOCKRUN_LVDS1_CLK 1200000000UL
+#define BOARD_BOOTCLOCKRUN_MQS_MCLK 63529411UL
+#define BOARD_BOOTCLOCKRUN_PERCLK_CLK_ROOT 75000000UL
+#define BOARD_BOOTCLOCKRUN_PLL7_MAIN_CLK 24000000UL
+#define BOARD_BOOTCLOCKRUN_SAI1_CLK_ROOT 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI1_MCLK1 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI1_MCLK2 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI1_MCLK3 30000000UL
+#define BOARD_BOOTCLOCKRUN_SAI2_CLK_ROOT 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI2_MCLK1 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI2_MCLK2 0UL
+#define BOARD_BOOTCLOCKRUN_SAI2_MCLK3 30000000UL
+#define BOARD_BOOTCLOCKRUN_SAI3_CLK_ROOT 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI3_MCLK1 63529411UL
+#define BOARD_BOOTCLOCKRUN_SAI3_MCLK2 0UL
+#define BOARD_BOOTCLOCKRUN_SAI3_MCLK3 30000000UL
+#define BOARD_BOOTCLOCKRUN_SEMC_CLK_ROOT 75000000UL
+#define BOARD_BOOTCLOCKRUN_SPDIF0_CLK_ROOT 30000000UL
+#define BOARD_BOOTCLOCKRUN_SPDIF0_EXTCLK_OUT 0UL
+#define BOARD_BOOTCLOCKRUN_TRACE_CLK_ROOT 132000000UL
+#define BOARD_BOOTCLOCKRUN_UART_CLK_ROOT 80000000UL
+#define BOARD_BOOTCLOCKRUN_USBPHY1_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_USBPHY2_CLK 0UL
+#define BOARD_BOOTCLOCKRUN_USDHC1_CLK_ROOT 198000000UL
+#define BOARD_BOOTCLOCKRUN_USDHC2_CLK_ROOT 198000000UL
+
+/*! @brief Arm PLL set for BOARD_BootClockRUN configuration.
+ */
+extern const clock_arm_pll_config_t armPllConfig_BOARD_BootClockRUN;
+/*! @brief Usb1 PLL set for BOARD_BootClockRUN configuration.
+ */
+extern const clock_usb_pll_config_t usb1PllConfig_BOARD_BootClockRUN;
+/*! @brief Sys PLL for BOARD_BootClockRUN configuration.
+ */
+extern const clock_sys_pll_config_t sysPllConfig_BOARD_BootClockRUN;
+/*! @brief Video PLL set for BOARD_BootClockRUN configuration.
+ */
+extern const clock_video_pll_config_t videoPllConfig_BOARD_BootClockRUN;
+
+/*******************************************************************************
+ * API for BOARD_BootClockRUN configuration
+ ******************************************************************************/
+#if defined(__cplusplus)
+extern "C" {
+#endif /* __cplusplus*/
+
+/*!
+ * @brief This function executes configuration of clocks.
+ *
+ */
+void BOARD_BootClockRUN(void);
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus*/
+
+#endif /* _CLOCK_CONFIG_H_ */
+
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.c
new file mode 100644
index 00000000..898dc833
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.c
@@ -0,0 +1,308 @@
+/***********************************************************************************************************************
+ * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file
+ * will be overwritten if the respective MCUXpresso Config Tools is used to update this file.
+ **********************************************************************************************************************/
+
+#include "dcd.h"
+
+/* Component ID definition, used by tools. */
+#ifndef FSL_COMPONENT_ID
+#define FSL_COMPONENT_ID "platform.drivers.xip_board"
+#endif
+
+#if defined(XIP_BOOT_HEADER_ENABLE) && (XIP_BOOT_HEADER_ENABLE == 1)
+#if defined(XIP_BOOT_HEADER_DCD_ENABLE) && (XIP_BOOT_HEADER_DCD_ENABLE == 1)
+#if defined(__CC_ARM) || defined(__ARMCC_VERSION) || defined(__GNUC__)
+__attribute__((section(".boot_hdr.dcd_data"), used))
+#elif defined(__ICCARM__)
+#pragma location = ".boot_hdr.dcd_data"
+#endif
+
+/* TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+!!GlobalInfo
+product: DCDx v3.0
+processor: MIMXRT1062xxxxA
+package_id: MIMXRT1062DVL6A
+mcu_data: ksdk2_0
+processor_version: 10.0.0
+board: MIMXRT1060-EVK
+output_format: c_array
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS **********/
+/* COMMENTS BELOW ARE USED AS SETTINGS FOR DCD DATA */
+const uint8_t dcd_data[] = {
+ /* HEADER */
+ /* Tag */
+ 0xD2,
+ /* Image Length */
+ 0x04, 0x10,
+ /* Version */
+ 0x41,
+
+ /* COMMANDS */
+
+ /* group: 'Imported Commands' */
+ /* #1.1-113, command header bytes for merged 'Write - value' command */
+ 0xCC, 0x03, 0x8C, 0x04,
+ /* #1.1, command: write_value, address: CCM_CCGR0, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x68, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.2, command: write_value, address: CCM_CCGR1, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x6C, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.3, command: write_value, address: CCM_CCGR2, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x70, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.4, command: write_value, address: CCM_CCGR3, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x74, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.5, command: write_value, address: CCM_CCGR4, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x78, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.6, command: write_value, address: CCM_CCGR5, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x7C, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.7, command: write_value, address: CCM_CCGR6, value: 0xFFFFFFFF, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x80, 0xFF, 0xFF, 0xFF, 0xFF,
+ /* #1.8, command: write_value, address: CCM_ANALOG_PLL_SYS, value: 0x2001, size: 4 */
+ 0x40, 0x0D, 0x80, 0x30, 0x00, 0x00, 0x20, 0x01,
+ /* #1.9, command: write_value, address: CCM_ANALOG_PFD_528, value: 0x1D0000, size: 4 */
+ 0x40, 0x0D, 0x81, 0x00, 0x00, 0x1D, 0x00, 0x00,
+ /* #1.10, command: write_value, address: CCM_CBCDR, value: 0x10D40, size: 4 */
+ 0x40, 0x0F, 0xC0, 0x14, 0x00, 0x01, 0x0D, 0x40,
+ /* #1.11, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_00, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x14, 0x00, 0x00, 0x00, 0x00,
+ /* #1.12, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_01, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x18, 0x00, 0x00, 0x00, 0x00,
+ /* #1.13, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_02, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x1C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.14, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_03, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x20, 0x00, 0x00, 0x00, 0x00,
+ /* #1.15, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_04, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x24, 0x00, 0x00, 0x00, 0x00,
+ /* #1.16, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_05, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x28, 0x00, 0x00, 0x00, 0x00,
+ /* #1.17, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_06, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x2C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.18, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_07, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x30, 0x00, 0x00, 0x00, 0x00,
+ /* #1.19, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_08, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x34, 0x00, 0x00, 0x00, 0x00,
+ /* #1.20, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_09, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x38, 0x00, 0x00, 0x00, 0x00,
+ /* #1.21, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_10, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x3C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.22, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_11, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x40, 0x00, 0x00, 0x00, 0x00,
+ /* #1.23, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_12, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x44, 0x00, 0x00, 0x00, 0x00,
+ /* #1.24, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_13, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x48, 0x00, 0x00, 0x00, 0x00,
+ /* #1.25, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_14, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x4C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.26, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_15, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x50, 0x00, 0x00, 0x00, 0x00,
+ /* #1.27, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_16, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x54, 0x00, 0x00, 0x00, 0x00,
+ /* #1.28, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_17, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x58, 0x00, 0x00, 0x00, 0x00,
+ /* #1.29, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_18, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x5C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.30, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_19, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x60, 0x00, 0x00, 0x00, 0x00,
+ /* #1.31, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_20, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x64, 0x00, 0x00, 0x00, 0x00,
+ /* #1.32, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_21, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x68, 0x00, 0x00, 0x00, 0x00,
+ /* #1.33, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_22, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x6C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.34, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_23, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x70, 0x00, 0x00, 0x00, 0x00,
+ /* #1.35, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_24, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x74, 0x00, 0x00, 0x00, 0x00,
+ /* #1.36, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_25, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x78, 0x00, 0x00, 0x00, 0x00,
+ /* #1.37, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_26, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x7C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.38, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_27, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00,
+ /* #1.39, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_28, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x84, 0x00, 0x00, 0x00, 0x00,
+ /* #1.40, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_29, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x88, 0x00, 0x00, 0x00, 0x00,
+ /* #1.41, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_30, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x8C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.42, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_31, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x90, 0x00, 0x00, 0x00, 0x00,
+ /* #1.43, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_32, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x94, 0x00, 0x00, 0x00, 0x00,
+ /* #1.44, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_33, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x98, 0x00, 0x00, 0x00, 0x00,
+ /* #1.45, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_34, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0x9C, 0x00, 0x00, 0x00, 0x00,
+ /* #1.46, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_35, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0xA0, 0x00, 0x00, 0x00, 0x00,
+ /* #1.47, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_36, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0xA4, 0x00, 0x00, 0x00, 0x00,
+ /* #1.48, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_37, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0xA8, 0x00, 0x00, 0x00, 0x00,
+ /* #1.49, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_38, value: 0x00, size: 4 */
+ 0x40, 0x1F, 0x80, 0xAC, 0x00, 0x00, 0x00, 0x00,
+ /* #1.50, command: write_value, address: IOMUXC_SW_MUX_CTL_PAD_GPIO_EMC_39, value: 0x10, size: 4 */
+ 0x40, 0x1F, 0x80, 0xB0, 0x00, 0x00, 0x00, 0x10,
+ /* #1.51, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_00, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x04, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.52, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_01, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x08, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.53, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_02, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x0C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.54, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_03, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x10, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.55, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_04, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x14, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.56, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_05, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x18, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.57, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_06, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x1C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.58, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_07, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x20, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.59, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_08, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x24, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.60, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_09, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x28, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.61, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_10, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x2C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.62, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_11, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x30, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.63, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_12, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x34, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.64, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_13, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x38, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.65, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_14, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x3C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.66, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_15, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x40, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.67, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_16, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x44, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.68, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_17, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x48, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.69, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_18, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x4C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.70, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_19, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x50, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.71, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_20, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x54, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.72, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_21, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x58, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.73, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_22, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x5C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.74, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_23, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x60, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.75, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_24, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x64, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.76, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_25, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x68, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.77, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_26, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x6C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.78, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_27, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x70, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.79, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_28, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x74, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.80, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_29, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x78, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.81, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_30, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x7C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.82, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_31, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x80, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.83, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_32, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x84, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.84, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_33, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x88, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.85, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_34, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x8C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.86, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_35, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x90, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.87, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_36, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x94, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.88, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_37, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x98, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.89, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_38, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0x9C, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.90, command: write_value, address: IOMUXC_SW_PAD_CTL_PAD_GPIO_EMC_39, value: 0x110F9, size: 4 */
+ 0x40, 0x1F, 0x82, 0xA0, 0x00, 0x01, 0x10, 0xF9,
+ /* #1.91, command: write_value, address: SEMC_MCR, value: 0x10000004, size: 4 */
+ 0x40, 0x2F, 0x00, 0x00, 0x10, 0x00, 0x00, 0x04,
+ /* #1.92, command: write_value, address: SEMC_BMCR0, value: 0x81, size: 4 */
+ 0x40, 0x2F, 0x00, 0x08, 0x00, 0x00, 0x00, 0x81,
+ /* #1.93, command: write_value, address: SEMC_BMCR1, value: 0x81, size: 4 */
+ 0x40, 0x2F, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x81,
+ /* #1.94, command: write_value, address: SEMC_BR0, value: 0x8000001B, size: 4 */
+ 0x40, 0x2F, 0x00, 0x10, 0x80, 0x00, 0x00, 0x1B,
+ /* #1.95, command: write_value, address: SEMC_BR1, value: 0x8200001B, size: 4 */
+ 0x40, 0x2F, 0x00, 0x14, 0x82, 0x00, 0x00, 0x1B,
+ /* #1.96, command: write_value, address: SEMC_BR2, value: 0x8400001B, size: 4 */
+ 0x40, 0x2F, 0x00, 0x18, 0x84, 0x00, 0x00, 0x1B,
+ /* #1.97, command: write_value, address: SEMC_BR3, value: 0x8600001B, size: 4 */
+ 0x40, 0x2F, 0x00, 0x1C, 0x86, 0x00, 0x00, 0x1B,
+ /* #1.98, command: write_value, address: SEMC_BR4, value: 0x90000021, size: 4 */
+ 0x40, 0x2F, 0x00, 0x20, 0x90, 0x00, 0x00, 0x21,
+ /* #1.99, command: write_value, address: SEMC_BR5, value: 0xA0000019, size: 4 */
+ 0x40, 0x2F, 0x00, 0x24, 0xA0, 0x00, 0x00, 0x19,
+ /* #1.100, command: write_value, address: SEMC_BR6, value: 0xA8000017, size: 4 */
+ 0x40, 0x2F, 0x00, 0x28, 0xA8, 0x00, 0x00, 0x17,
+ /* #1.101, command: write_value, address: SEMC_BR7, value: 0xA900001B, size: 4 */
+ 0x40, 0x2F, 0x00, 0x2C, 0xA9, 0x00, 0x00, 0x1B,
+ /* #1.102, command: write_value, address: SEMC_BR8, value: 0x21, size: 4 */
+ 0x40, 0x2F, 0x00, 0x30, 0x00, 0x00, 0x00, 0x21,
+ /* #1.103, command: write_value, address: SEMC_IOCR, value: 0x79A8, size: 4 */
+ 0x40, 0x2F, 0x00, 0x04, 0x00, 0x00, 0x79, 0xA8,
+ /* #1.104, command: write_value, address: SEMC_SDRAMCR0, value: 0xF31, size: 4 */
+ 0x40, 0x2F, 0x00, 0x40, 0x00, 0x00, 0x0F, 0x31,
+ /* #1.105, command: write_value, address: SEMC_SDRAMCR1, value: 0x652922, size: 4 */
+ 0x40, 0x2F, 0x00, 0x44, 0x00, 0x65, 0x29, 0x22,
+ /* #1.106, command: write_value, address: SEMC_SDRAMCR2, value: 0x10920, size: 4 */
+ 0x40, 0x2F, 0x00, 0x48, 0x00, 0x01, 0x09, 0x20,
+ /* #1.107, command: write_value, address: SEMC_SDRAMCR3, value: 0x50210A08, size: 4 */
+ 0x40, 0x2F, 0x00, 0x4C, 0x50, 0x21, 0x0A, 0x08,
+ /* #1.108, command: write_value, address: SEMC_DBICR0, value: 0x21, size: 4 */
+ 0x40, 0x2F, 0x00, 0x80, 0x00, 0x00, 0x00, 0x21,
+ /* #1.109, command: write_value, address: SEMC_DBICR1, value: 0x888888, size: 4 */
+ 0x40, 0x2F, 0x00, 0x84, 0x00, 0x88, 0x88, 0x88,
+ /* #1.110, command: write_value, address: SEMC_IPCR1, value: 0x02, size: 4 */
+ 0x40, 0x2F, 0x00, 0x94, 0x00, 0x00, 0x00, 0x02,
+ /* #1.111, command: write_value, address: SEMC_IPCR2, value: 0x00, size: 4 */
+ 0x40, 0x2F, 0x00, 0x98, 0x00, 0x00, 0x00, 0x00,
+ /* #1.112, command: write_value, address: SEMC_IPCR0, value: 0x80000000, size: 4 */
+ 0x40, 0x2F, 0x00, 0x90, 0x80, 0x00, 0x00, 0x00,
+ /* #1.113, command: write_value, address: SEMC_IPCMD, value: 0xA55A000F, size: 4 */
+ 0x40, 0x2F, 0x00, 0x9C, 0xA5, 0x5A, 0x00, 0x0F,
+ /* #2, command: check_any_bit_set, address: SEMC_INTR, value: 0x01, size: 4 */
+ 0xCF, 0x00, 0x0C, 0x1C, 0x40, 0x2F, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x01,
+ /* #3.1-2, command header bytes for merged 'Write - value' command */
+ 0xCC, 0x00, 0x14, 0x04,
+ /* #3.1, command: write_value, address: SEMC_IPCR0, value: 0x80000000, size: 4 */
+ 0x40, 0x2F, 0x00, 0x90, 0x80, 0x00, 0x00, 0x00,
+ /* #3.2, command: write_value, address: SEMC_IPCMD, value: 0xA55A000C, size: 4 */
+ 0x40, 0x2F, 0x00, 0x9C, 0xA5, 0x5A, 0x00, 0x0C,
+ /* #4, command: check_any_bit_set, address: SEMC_INTR, value: 0x01, size: 4 */
+ 0xCF, 0x00, 0x0C, 0x1C, 0x40, 0x2F, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x01,
+ /* #5.1-2, command header bytes for merged 'Write - value' command */
+ 0xCC, 0x00, 0x14, 0x04,
+ /* #5.1, command: write_value, address: SEMC_IPCR0, value: 0x80000000, size: 4 */
+ 0x40, 0x2F, 0x00, 0x90, 0x80, 0x00, 0x00, 0x00,
+ /* #5.2, command: write_value, address: SEMC_IPCMD, value: 0xA55A000C, size: 4 */
+ 0x40, 0x2F, 0x00, 0x9C, 0xA5, 0x5A, 0x00, 0x0C,
+ /* #6, command: check_any_bit_set, address: SEMC_INTR, value: 0x01, size: 4 */
+ 0xCF, 0x00, 0x0C, 0x1C, 0x40, 0x2F, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x01,
+ /* #7.1-3, command header bytes for merged 'Write - value' command */
+ 0xCC, 0x00, 0x1C, 0x04,
+ /* #7.1, command: write_value, address: SEMC_IPTXDAT, value: 0x33, size: 4 */
+ 0x40, 0x2F, 0x00, 0xA0, 0x00, 0x00, 0x00, 0x33,
+ /* #7.2, command: write_value, address: SEMC_IPCR0, value: 0x80000000, size: 4 */
+ 0x40, 0x2F, 0x00, 0x90, 0x80, 0x00, 0x00, 0x00,
+ /* #7.3, command: write_value, address: SEMC_IPCMD, value: 0xA55A000A, size: 4 */
+ 0x40, 0x2F, 0x00, 0x9C, 0xA5, 0x5A, 0x00, 0x0A,
+ /* #8, command: check_any_bit_set, address: SEMC_INTR, value: 0x01, size: 4 */
+ 0xCF, 0x00, 0x0C, 0x1C, 0x40, 0x2F, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x01,
+ /* #9, command: write_value, address: SEMC_SDRAMCR3, value: 0x50210A09, size: 4 */
+ 0xCC, 0x00, 0x0C, 0x04, 0x40, 0x2F, 0x00, 0x4C, 0x50, 0x21, 0x0A, 0x09
+ };
+/* BE CAREFUL MODIFYING THIS SETTINGS - IT IS YAML SETTINGS FOR TOOLS */
+
+#else
+const uint8_t dcd_data[] = {0x00};
+#endif /* XIP_BOOT_HEADER_DCD_ENABLE */
+#endif /* XIP_BOOT_HEADER_ENABLE */
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.h b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.h
new file mode 100644
index 00000000..f4fe48a6
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/dcd.h
@@ -0,0 +1,25 @@
+/***********************************************************************************************************************
+ * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file
+ * will be overwritten if the respective MCUXpresso Config Tools is used to update this file.
+ **********************************************************************************************************************/
+
+#ifndef __DCD__
+#define __DCD__
+
+#include
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief XIP_BOARD driver version 2.0.0. */
+#define FSL_XIP_BOARD_DRIVER_VERSION (MAKE_VERSION(2, 0, 0))
+/*@}*/
+
+/*************************************
+ * DCD Data
+ *************************************/
+#define DCD_TAG_HEADER (0xD2)
+#define DCD_VERSION (0x41)
+#define DCD_TAG_HEADER_SHIFT (24)
+#define DCD_ARRAY_SIZE 1
+
+#endif /* __DCD__ */
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.c
new file mode 100644
index 00000000..5d9ab2c0
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.c
@@ -0,0 +1,20 @@
+#include "mcu_init.h"
+
+void board_init(void)
+{
+ /* Init board hardware. */
+ BOARD_ConfigMPU();
+ BOARD_InitPins();
+ BOARD_InitBootClocks();
+
+ BOARD_InitDebugConsole();
+}
+
+void SysTick_Handler(void)
+{
+ if (tos_knl_is_running()) {
+ tos_knl_irq_enter();
+ tos_tick_handler();
+ tos_knl_irq_leave();
+ }
+}
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.h b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.h
new file mode 100644
index 00000000..96ef9320
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/mcu_init.h
@@ -0,0 +1,20 @@
+#ifndef __MCU_INIT_H
+#define __MCU_INIT_H
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#include "tos_k.h"
+#include "fsl_device_registers.h"
+#include "fsl_debug_console.h"
+#include "pin_mux.h"
+#include "clock_config.h"
+#include "board.h"
+#include "fsl_gpio.h"
+
+void board_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /*__ __MCU_INIT_H */
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.c
new file mode 100644
index 00000000..f9f815f0
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.c
@@ -0,0 +1,81 @@
+/***********************************************************************************************************************
+ * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file
+ * will be overwritten if the respective MCUXpresso Config Tools is used to update this file.
+ **********************************************************************************************************************/
+
+/*
+ * TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+!!GlobalInfo
+product: Pins v10.0
+processor: MIMXRT1062xxxxA
+package_id: MIMXRT1062DVL6A
+mcu_data: ksdk2_0
+processor_version: 10.0.0
+board: MIMXRT1060-EVK
+pin_labels:
+- {pin_num: G11, pin_signal: GPIO_AD_B0_03, label: 'USB_OTG1_OC/J24[1]', identifier: LPSPI3_CS}
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS ***********
+ */
+
+#include "fsl_common.h"
+#include "fsl_iomuxc.h"
+#include "fsl_gpio.h"
+#include "pin_mux.h"
+
+/* FUNCTION ************************************************************************************************************
+ *
+ * Function Name : BOARD_InitBootPins
+ * Description : Calls initialization functions.
+ *
+ * END ****************************************************************************************************************/
+void BOARD_InitBootPins(void) {
+ BOARD_InitPins();
+}
+
+/*
+ * TEXT BELOW IS USED AS SETTING FOR TOOLS *************************************
+BOARD_InitPins:
+- options: {callFromInitBoot: 'true', coreID: core0, enableClock: 'true'}
+- pin_list:
+ - {pin_num: L14, peripheral: LPUART1, signal: RX, pin_signal: GPIO_AD_B0_13}
+ - {pin_num: K14, peripheral: LPUART1, signal: TX, pin_signal: GPIO_AD_B0_12}
+ - {pin_num: M14, peripheral: LPSPI3, signal: SCK, pin_signal: GPIO_AD_B0_00}
+ - {pin_num: M11, peripheral: LPSPI3, signal: SDI, pin_signal: GPIO_AD_B0_02}
+ - {pin_num: H10, peripheral: LPSPI3, signal: SDO, pin_signal: GPIO_AD_B0_01}
+ - {pin_num: G11, peripheral: GPIO1, signal: 'gpio_io, 03', pin_signal: GPIO_AD_B0_03, direction: OUTPUT}
+ * BE CAREFUL MODIFYING THIS COMMENT - IT IS YAML SETTINGS FOR TOOLS ***********
+ */
+
+/* FUNCTION ************************************************************************************************************
+ *
+ * Function Name : BOARD_InitPins
+ * Description : Configures pin routing and optionally pin electrical features.
+ *
+ * END ****************************************************************************************************************/
+void BOARD_InitPins(void) {
+ CLOCK_EnableClock(kCLOCK_Iomuxc);
+
+ /* GPIO configuration of LPSPI3_CS on GPIO_AD_B0_03 (pin G11) */
+ gpio_pin_config_t LPSPI3_CS_config = {
+ .direction = kGPIO_DigitalOutput,
+ .outputLogic = 0U,
+ .interruptMode = kGPIO_NoIntmode
+ };
+ /* Initialize GPIO functionality on GPIO_AD_B0_03 (pin G11) */
+ GPIO_PinInit(GPIO1, 3U, &LPSPI3_CS_config);
+
+ IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_00_LPSPI3_SCK, 0U);
+ IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_01_LPSPI3_SDO, 0U);
+ IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_02_LPSPI3_SDI, 0U);
+ IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_03_GPIO1_IO03, 0U);
+ IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_12_LPUART1_TX, 0U);
+ IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B0_13_LPUART1_RX, 0U);
+ IOMUXC_GPR->GPR26 = ((IOMUXC_GPR->GPR26 &
+ (~(BOARD_INITPINS_IOMUXC_GPR_GPR26_GPIO_MUX1_GPIO_SEL_MASK)))
+ | IOMUXC_GPR_GPR26_GPIO_MUX1_GPIO_SEL(0x00U)
+ );
+}
+
+/***********************************************************************************************************************
+ * EOF
+ **********************************************************************************************************************/
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.h b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.h
new file mode 100644
index 00000000..b0eab432
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/pin_mux.h
@@ -0,0 +1,83 @@
+/***********************************************************************************************************************
+ * This file was generated by the MCUXpresso Config Tools. Any manual edits made to this file
+ * will be overwritten if the respective MCUXpresso Config Tools is used to update this file.
+ **********************************************************************************************************************/
+
+#ifndef _PIN_MUX_H_
+#define _PIN_MUX_H_
+
+/***********************************************************************************************************************
+ * Definitions
+ **********************************************************************************************************************/
+
+/*! @brief Direction type */
+typedef enum _pin_mux_direction
+{
+ kPIN_MUX_DirectionInput = 0U, /* Input direction */
+ kPIN_MUX_DirectionOutput = 1U, /* Output direction */
+ kPIN_MUX_DirectionInputOrOutput = 2U /* Input or output direction */
+} pin_mux_direction_t;
+
+/*!
+ * @addtogroup pin_mux
+ * @{
+ */
+
+/***********************************************************************************************************************
+ * API
+ **********************************************************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @brief Calls initialization functions.
+ *
+ */
+void BOARD_InitBootPins(void);
+
+#define BOARD_INITPINS_IOMUXC_GPR_GPR26_GPIO_MUX1_GPIO_SEL_MASK 0x08U /*!< GPIO1 and GPIO6 share same IO MUX function, GPIO_MUX1 selects one GPIO function: affected bits mask */
+
+/* GPIO_AD_B0_13 (coord L14), UART1_RXD */
+/* Routed pin properties */
+#define BOARD_INITPINS_UART1_RXD_PERIPHERAL LPUART1 /*!< Peripheral name */
+#define BOARD_INITPINS_UART1_RXD_SIGNAL RX /*!< Signal name */
+
+/* GPIO_AD_B0_12 (coord K14), UART1_TXD */
+/* Routed pin properties */
+#define BOARD_INITPINS_UART1_TXD_PERIPHERAL LPUART1 /*!< Peripheral name */
+#define BOARD_INITPINS_UART1_TXD_SIGNAL TX /*!< Signal name */
+
+/* GPIO_AD_B0_03 (coord G11), USB_OTG1_OC/J24[1] */
+/* Routed pin properties */
+#define BOARD_INITPINS_LPSPI3_CS_PERIPHERAL GPIO1 /*!< Peripheral name */
+#define BOARD_INITPINS_LPSPI3_CS_SIGNAL gpio_io /*!< Signal name */
+#define BOARD_INITPINS_LPSPI3_CS_CHANNEL 3U /*!< Signal channel */
+
+/* Symbols to be used with GPIO driver */
+#define BOARD_INITPINS_LPSPI3_CS_GPIO GPIO1 /*!< GPIO peripheral base pointer */
+#define BOARD_INITPINS_LPSPI3_CS_GPIO_PIN 3U /*!< GPIO pin number */
+#define BOARD_INITPINS_LPSPI3_CS_GPIO_PIN_MASK (1U << 3U) /*!< GPIO pin mask */
+#define BOARD_INITPINS_LPSPI3_CS_PORT GPIO1 /*!< PORT peripheral base pointer */
+#define BOARD_INITPINS_LPSPI3_CS_PIN 3U /*!< PORT pin number */
+#define BOARD_INITPINS_LPSPI3_CS_PIN_MASK (1U << 3U) /*!< PORT pin mask */
+
+/*!
+ * @brief Configures pin routing and optionally pin electrical features.
+ *
+ */
+void BOARD_InitPins(void);
+
+#if defined(__cplusplus)
+}
+#endif
+
+/*!
+ * @}
+ */
+#endif /* _PIN_MUX_H_ */
+
+/***********************************************************************************************************************
+ * EOF
+ **********************************************************************************************************************/
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.c
new file mode 100644
index 00000000..f4ce9636
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2018-2020 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "tosevbrt1062_flexspi_nor_config.h"
+
+/* Component ID definition, used by tools. */
+#ifndef FSL_COMPONENT_ID
+#define FSL_COMPONENT_ID "platform.drivers.xip_board"
+#endif
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+#if defined(XIP_BOOT_HEADER_ENABLE) && (XIP_BOOT_HEADER_ENABLE == 1)
+#if defined(__CC_ARM) || defined(__ARMCC_VERSION) || defined(__GNUC__)
+__attribute__((section(".boot_hdr.conf"), used))
+#elif defined(__ICCARM__)
+#pragma location = ".boot_hdr.conf"
+#endif
+
+const flexspi_nor_config_t qspiflash_config = {
+ .memConfig =
+ {
+ .tag = FLEXSPI_CFG_BLK_TAG,
+ .version = FLEXSPI_CFG_BLK_VERSION,
+ .readSampleClkSrc = kFlexSPIReadSampleClk_LoopbackFromDqsPad,
+ .csHoldTime = 3u,
+ .csSetupTime = 3u,
+ .sflashPadType = kSerialFlash_4Pads,
+ .serialClkFreq = kFlexSpiSerialClk_100MHz,
+ .sflashA1Size = 8u * 1024u * 1024u,
+ .lookupTable =
+ {
+ // Read LUTs
+ FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0xEB, RADDR_SDR, FLEXSPI_4PAD, 0x18),
+ FLEXSPI_LUT_SEQ(DUMMY_SDR, FLEXSPI_4PAD, 0x06, READ_SDR, FLEXSPI_4PAD, 0x04),
+ },
+ },
+ .pageSize = 256u,
+ .sectorSize = 4u * 1024u,
+ .blockSize = 64u * 1024u,
+ .isUniformBlockSize = false,
+};
+#endif /* XIP_BOOT_HEADER_ENABLE */
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.h b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.h
new file mode 100644
index 00000000..d300aef5
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/board/xip/tosevbrt1062_flexspi_nor_config.h
@@ -0,0 +1,268 @@
+/*
+ * Copyright 2018-2020 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __EVKMIMXRT1060_FLEXSPI_NOR_CONFIG__
+#define __EVKMIMXRT1060_FLEXSPI_NOR_CONFIG__
+
+#include
+#include
+#include "fsl_common.h"
+
+/*! @name Driver version */
+/*@{*/
+/*! @brief XIP_BOARD driver version 2.0.1. */
+#define FSL_XIP_BOARD_DRIVER_VERSION (MAKE_VERSION(2, 0, 1))
+/*@}*/
+
+/* FLEXSPI memory config block related defintions */
+#define FLEXSPI_CFG_BLK_TAG (0x42464346UL) // ascii "FCFB" Big Endian
+#define FLEXSPI_CFG_BLK_VERSION (0x56010400UL) // V1.4.0
+#define FLEXSPI_CFG_BLK_SIZE (512)
+
+/* FLEXSPI Feature related definitions */
+#define FLEXSPI_FEATURE_HAS_PARALLEL_MODE 1
+
+/* Lookup table related defintions */
+#define CMD_INDEX_READ 0
+#define CMD_INDEX_READSTATUS 1
+#define CMD_INDEX_WRITEENABLE 2
+#define CMD_INDEX_WRITE 4
+
+#define CMD_LUT_SEQ_IDX_READ 0
+#define CMD_LUT_SEQ_IDX_READSTATUS 1
+#define CMD_LUT_SEQ_IDX_WRITEENABLE 3
+#define CMD_LUT_SEQ_IDX_WRITE 9
+
+#define CMD_SDR 0x01
+#define CMD_DDR 0x21
+#define RADDR_SDR 0x02
+#define RADDR_DDR 0x22
+#define CADDR_SDR 0x03
+#define CADDR_DDR 0x23
+#define MODE1_SDR 0x04
+#define MODE1_DDR 0x24
+#define MODE2_SDR 0x05
+#define MODE2_DDR 0x25
+#define MODE4_SDR 0x06
+#define MODE4_DDR 0x26
+#define MODE8_SDR 0x07
+#define MODE8_DDR 0x27
+#define WRITE_SDR 0x08
+#define WRITE_DDR 0x28
+#define READ_SDR 0x09
+#define READ_DDR 0x29
+#define LEARN_SDR 0x0A
+#define LEARN_DDR 0x2A
+#define DATSZ_SDR 0x0B
+#define DATSZ_DDR 0x2B
+#define DUMMY_SDR 0x0C
+#define DUMMY_DDR 0x2C
+#define DUMMY_RWDS_SDR 0x0D
+#define DUMMY_RWDS_DDR 0x2D
+#define JMP_ON_CS 0x1F
+#define STOP 0
+
+#define FLEXSPI_1PAD 0
+#define FLEXSPI_2PAD 1
+#define FLEXSPI_4PAD 2
+#define FLEXSPI_8PAD 3
+
+#define FLEXSPI_LUT_SEQ(cmd0, pad0, op0, cmd1, pad1, op1) \
+ (FLEXSPI_LUT_OPERAND0(op0) | FLEXSPI_LUT_NUM_PADS0(pad0) | FLEXSPI_LUT_OPCODE0(cmd0) | FLEXSPI_LUT_OPERAND1(op1) | \
+ FLEXSPI_LUT_NUM_PADS1(pad1) | FLEXSPI_LUT_OPCODE1(cmd1))
+
+//!@brief Definitions for FlexSPI Serial Clock Frequency
+typedef enum _FlexSpiSerialClockFreq
+{
+ kFlexSpiSerialClk_30MHz = 1,
+ kFlexSpiSerialClk_50MHz = 2,
+ kFlexSpiSerialClk_60MHz = 3,
+ kFlexSpiSerialClk_75MHz = 4,
+ kFlexSpiSerialClk_80MHz = 5,
+ kFlexSpiSerialClk_100MHz = 6,
+ kFlexSpiSerialClk_120MHz = 7,
+ kFlexSpiSerialClk_133MHz = 8,
+ kFlexSpiSerialClk_166MHz = 9,
+} flexspi_serial_clk_freq_t;
+
+//!@brief FlexSPI clock configuration type
+enum
+{
+ kFlexSpiClk_SDR, //!< Clock configure for SDR mode
+ kFlexSpiClk_DDR, //!< Clock configurat for DDR mode
+};
+
+//!@brief FlexSPI Read Sample Clock Source definition
+typedef enum _FlashReadSampleClkSource
+{
+ kFlexSPIReadSampleClk_LoopbackInternally = 0,
+ kFlexSPIReadSampleClk_LoopbackFromDqsPad = 1,
+ kFlexSPIReadSampleClk_LoopbackFromSckPad = 2,
+ kFlexSPIReadSampleClk_ExternalInputFromDqsPad = 3,
+} flexspi_read_sample_clk_t;
+
+//!@brief Misc feature bit definitions
+enum
+{
+ kFlexSpiMiscOffset_DiffClkEnable = 0, //!< Bit for Differential clock enable
+ kFlexSpiMiscOffset_Ck2Enable = 1, //!< Bit for CK2 enable
+ kFlexSpiMiscOffset_ParallelEnable = 2, //!< Bit for Parallel mode enable
+ kFlexSpiMiscOffset_WordAddressableEnable = 3, //!< Bit for Word Addressable enable
+ kFlexSpiMiscOffset_SafeConfigFreqEnable = 4, //!< Bit for Safe Configuration Frequency enable
+ kFlexSpiMiscOffset_PadSettingOverrideEnable = 5, //!< Bit for Pad setting override enable
+ kFlexSpiMiscOffset_DdrModeEnable = 6, //!< Bit for DDR clock confiuration indication.
+};
+
+//!@brief Flash Type Definition
+enum
+{
+ kFlexSpiDeviceType_SerialNOR = 1, //!< Flash devices are Serial NOR
+ kFlexSpiDeviceType_SerialNAND = 2, //!< Flash devices are Serial NAND
+ kFlexSpiDeviceType_SerialRAM = 3, //!< Flash devices are Serial RAM/HyperFLASH
+ kFlexSpiDeviceType_MCP_NOR_NAND = 0x12, //!< Flash device is MCP device, A1 is Serial NOR, A2 is Serial NAND
+ kFlexSpiDeviceType_MCP_NOR_RAM = 0x13, //!< Flash deivce is MCP device, A1 is Serial NOR, A2 is Serial RAMs
+};
+
+//!@brief Flash Pad Definitions
+enum
+{
+ kSerialFlash_1Pad = 1,
+ kSerialFlash_2Pads = 2,
+ kSerialFlash_4Pads = 4,
+ kSerialFlash_8Pads = 8,
+};
+
+//!@brief FlexSPI LUT Sequence structure
+typedef struct _lut_sequence
+{
+ uint8_t seqNum; //!< Sequence Number, valid number: 1-16
+ uint8_t seqId; //!< Sequence Index, valid number: 0-15
+ uint16_t reserved;
+} flexspi_lut_seq_t;
+
+//!@brief Flash Configuration Command Type
+enum
+{
+ kDeviceConfigCmdType_Generic, //!< Generic command, for example: configure dummy cycles, drive strength, etc
+ kDeviceConfigCmdType_QuadEnable, //!< Quad Enable command
+ kDeviceConfigCmdType_Spi2Xpi, //!< Switch from SPI to DPI/QPI/OPI mode
+ kDeviceConfigCmdType_Xpi2Spi, //!< Switch from DPI/QPI/OPI to SPI mode
+ kDeviceConfigCmdType_Spi2NoCmd, //!< Switch to 0-4-4/0-8-8 mode
+ kDeviceConfigCmdType_Reset, //!< Reset device command
+};
+
+//!@brief FlexSPI Memory Configuration Block
+typedef struct _FlexSPIConfig
+{
+ uint32_t tag; //!< [0x000-0x003] Tag, fixed value 0x42464346UL
+ uint32_t version; //!< [0x004-0x007] Version,[31:24] -'V', [23:16] - Major, [15:8] - Minor, [7:0] - bugfix
+ uint32_t reserved0; //!< [0x008-0x00b] Reserved for future use
+ uint8_t readSampleClkSrc; //!< [0x00c-0x00c] Read Sample Clock Source, valid value: 0/1/3
+ uint8_t csHoldTime; //!< [0x00d-0x00d] CS hold time, default value: 3
+ uint8_t csSetupTime; //!< [0x00e-0x00e] CS setup time, default value: 3
+ uint8_t columnAddressWidth; //!< [0x00f-0x00f] Column Address with, for HyperBus protocol, it is fixed to 3, For
+ //! Serial NAND, need to refer to datasheet
+ uint8_t deviceModeCfgEnable; //!< [0x010-0x010] Device Mode Configure enable flag, 1 - Enable, 0 - Disable
+ uint8_t deviceModeType; //!< [0x011-0x011] Specify the configuration command type:Quad Enable, DPI/QPI/OPI switch,
+ //! Generic configuration, etc.
+ uint16_t waitTimeCfgCommands; //!< [0x012-0x013] Wait time for all configuration commands, unit: 100us, Used for
+ //! DPI/QPI/OPI switch or reset command
+ flexspi_lut_seq_t deviceModeSeq; //!< [0x014-0x017] Device mode sequence info, [7:0] - LUT sequence id, [15:8] - LUt
+ //! sequence number, [31:16] Reserved
+ uint32_t deviceModeArg; //!< [0x018-0x01b] Argument/Parameter for device configuration
+ uint8_t configCmdEnable; //!< [0x01c-0x01c] Configure command Enable Flag, 1 - Enable, 0 - Disable
+ uint8_t configModeType[3]; //!< [0x01d-0x01f] Configure Mode Type, similar as deviceModeTpe
+ flexspi_lut_seq_t
+ configCmdSeqs[3]; //!< [0x020-0x02b] Sequence info for Device Configuration command, similar as deviceModeSeq
+ uint32_t reserved1; //!< [0x02c-0x02f] Reserved for future use
+ uint32_t configCmdArgs[3]; //!< [0x030-0x03b] Arguments/Parameters for device Configuration commands
+ uint32_t reserved2; //!< [0x03c-0x03f] Reserved for future use
+ uint32_t controllerMiscOption; //!< [0x040-0x043] Controller Misc Options, see Misc feature bit definitions for more
+ //! details
+ uint8_t deviceType; //!< [0x044-0x044] Device Type: See Flash Type Definition for more details
+ uint8_t sflashPadType; //!< [0x045-0x045] Serial Flash Pad Type: 1 - Single, 2 - Dual, 4 - Quad, 8 - Octal
+ uint8_t serialClkFreq; //!< [0x046-0x046] Serial Flash Frequencey, device specific definitions, See System Boot
+ //! Chapter for more details
+ uint8_t lutCustomSeqEnable; //!< [0x047-0x047] LUT customization Enable, it is required if the program/erase cannot
+ //! be done using 1 LUT sequence, currently, only applicable to HyperFLASH
+ uint32_t reserved3[2]; //!< [0x048-0x04f] Reserved for future use
+ uint32_t sflashA1Size; //!< [0x050-0x053] Size of Flash connected to A1
+ uint32_t sflashA2Size; //!< [0x054-0x057] Size of Flash connected to A2
+ uint32_t sflashB1Size; //!< [0x058-0x05b] Size of Flash connected to B1
+ uint32_t sflashB2Size; //!< [0x05c-0x05f] Size of Flash connected to B2
+ uint32_t csPadSettingOverride; //!< [0x060-0x063] CS pad setting override value
+ uint32_t sclkPadSettingOverride; //!< [0x064-0x067] SCK pad setting override value
+ uint32_t dataPadSettingOverride; //!< [0x068-0x06b] data pad setting override value
+ uint32_t dqsPadSettingOverride; //!< [0x06c-0x06f] DQS pad setting override value
+ uint32_t timeoutInMs; //!< [0x070-0x073] Timeout threshold for read status command
+ uint32_t commandInterval; //!< [0x074-0x077] CS deselect interval between two commands
+ uint16_t dataValidTime[2]; //!< [0x078-0x07b] CLK edge to data valid time for PORT A and PORT B, in terms of 0.1ns
+ uint16_t busyOffset; //!< [0x07c-0x07d] Busy offset, valid value: 0-31
+ uint16_t busyBitPolarity; //!< [0x07e-0x07f] Busy flag polarity, 0 - busy flag is 1 when flash device is busy, 1 -
+ //! busy flag is 0 when flash device is busy
+ uint32_t lookupTable[64]; //!< [0x080-0x17f] Lookup table holds Flash command sequences
+ flexspi_lut_seq_t lutCustomSeq[12]; //!< [0x180-0x1af] Customizable LUT Sequences
+ uint32_t reserved4[4]; //!< [0x1b0-0x1bf] Reserved for future use
+} flexspi_mem_config_t;
+
+/* */
+#define NOR_CMD_INDEX_READ CMD_INDEX_READ //!< 0
+#define NOR_CMD_INDEX_READSTATUS CMD_INDEX_READSTATUS //!< 1
+#define NOR_CMD_INDEX_WRITEENABLE CMD_INDEX_WRITEENABLE //!< 2
+#define NOR_CMD_INDEX_ERASESECTOR 3 //!< 3
+#define NOR_CMD_INDEX_PAGEPROGRAM CMD_INDEX_WRITE //!< 4
+#define NOR_CMD_INDEX_CHIPERASE 5 //!< 5
+#define NOR_CMD_INDEX_DUMMY 6 //!< 6
+#define NOR_CMD_INDEX_ERASEBLOCK 7 //!< 7
+
+#define NOR_CMD_LUT_SEQ_IDX_READ CMD_LUT_SEQ_IDX_READ //!< 0 READ LUT sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_READSTATUS \
+ CMD_LUT_SEQ_IDX_READSTATUS //!< 1 Read Status LUT sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_READSTATUS_XPI \
+ 2 //!< 2 Read status DPI/QPI/OPI sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_WRITEENABLE \
+ CMD_LUT_SEQ_IDX_WRITEENABLE //!< 3 Write Enable sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_WRITEENABLE_XPI \
+ 4 //!< 4 Write Enable DPI/QPI/OPI sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_ERASESECTOR 5 //!< 5 Erase Sector sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_ERASEBLOCK 8 //!< 8 Erase Block sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_PAGEPROGRAM \
+ CMD_LUT_SEQ_IDX_WRITE //!< 9 Program sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_CHIPERASE 11 //!< 11 Chip Erase sequence in lookupTable id stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_READ_SFDP 13 //!< 13 Read SFDP sequence in lookupTable id stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_RESTORE_NOCMD \
+ 14 //!< 14 Restore 0-4-4/0-8-8 mode sequence id in lookupTable stored in config block
+#define NOR_CMD_LUT_SEQ_IDX_EXIT_NOCMD \
+ 15 //!< 15 Exit 0-4-4/0-8-8 mode sequence id in lookupTable stored in config blobk
+
+/*
+ * Serial NOR configuration block
+ */
+typedef struct _flexspi_nor_config
+{
+ flexspi_mem_config_t memConfig; //!< Common memory configuration info via FlexSPI
+ uint32_t pageSize; //!< Page size of Serial NOR
+ uint32_t sectorSize; //!< Sector size of Serial NOR
+ uint8_t ipcmdSerialClkFreq; //!< Clock frequency for IP command
+ uint8_t isUniformBlockSize; //!< Sector/Block size is the same
+ uint8_t reserved0[2]; //!< Reserved for future use
+ uint8_t serialNorType; //!< Serial NOR Flash type: 0/1/2/3
+ uint8_t needExitNoCmdMode; //!< Need to exit NoCmd mode before other IP command
+ uint8_t halfClkForNonReadCmd; //!< Half the Serial Clock for non-read command: true/false
+ uint8_t needRestoreNoCmdMode; //!< Need to Restore NoCmd mode after IP commmand execution
+ uint32_t blockSize; //!< Block size
+ uint32_t reserve2[11]; //!< Reserved for future use
+} flexspi_nor_config_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __EVKMIMXRT1060_FLEXSPI_NOR_CONFIG__ */
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/littlefs_spiflash.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/littlefs_spiflash.c
new file mode 100644
index 00000000..706f7e7c
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/littlefs_spiflash.c
@@ -0,0 +1,146 @@
+#include "tos_k.h"
+#include "w25q64.h"
+#include "lfs.h"
+
+static k_mutex_t lfs_mutex;
+
+static int lfs_spiflash_read(const struct lfs_config *c, lfs_block_t block, lfs_off_t off, void *buffer, lfs_size_t size)
+{
+ int ret;
+
+ ret = w25qxx_read((uint8_t *)buffer, block * c->block_size + off, size);
+
+ return ret == 0 ? LFS_ERR_OK : LFS_ERR_IO;
+}
+
+static int lfs_spiflash_prog(const struct lfs_config *c, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size)
+{
+ int ret;
+
+ ret = w25qxx_page_program((uint8_t *)buffer, block * c->block_size + off, size);
+
+ return ret == 0 ? LFS_ERR_OK : LFS_ERR_IO;
+}
+
+static int lfs_spiflash_erase(const struct lfs_config *c, lfs_block_t block)
+{
+ int ret;
+
+ ret = w25qxx_erase_sector(block * c->block_size);
+
+ return ret == 0 ? LFS_ERR_OK : LFS_ERR_IO;
+}
+
+static int lfs_spiflash_sync(const struct lfs_config *c)
+{
+ return LFS_ERR_OK;
+}
+
+static int lfs_spiflash_lock(const struct lfs_config *c)
+{
+ k_err_t err;
+
+ err = tos_mutex_pend(&lfs_mutex);
+
+ return err == K_ERR_NONE ? LFS_ERR_OK : LFS_ERR_INVAL;
+}
+
+static int lfs_spiflash_unlock(const struct lfs_config *c)
+{
+ k_err_t err;
+
+ err = tos_mutex_post(&lfs_mutex);
+
+ return err == K_ERR_NONE ? LFS_ERR_OK : LFS_ERR_INVAL;
+}
+
+const struct lfs_config cfg = {
+ // block device operations
+ .read = lfs_spiflash_read,
+ .prog = lfs_spiflash_prog,
+ .erase = lfs_spiflash_erase,
+ .sync = lfs_spiflash_sync,
+ .lock = lfs_spiflash_lock,
+ .unlock = lfs_spiflash_unlock,
+
+ // block device configuration
+ .read_size = 16,
+ .prog_size = 16,
+ .block_size = 4096,
+ .block_count = 128,
+ .cache_size = 16,
+ .lookahead_size = 16,
+ .block_cycles = 500,
+};
+
+void littlefs_task()
+{
+ int err;
+ lfs_t lfs;
+ lfs_file_t file;
+
+ char test_ctx[] = "hello,little fs!";
+ char read_buf[16] = {0};
+ lfs_ssize_t nbytes;
+
+ tos_mutex_create(&lfs_mutex);
+
+ memset(&lfs, 0, sizeof(lfs));
+ err = lfs_mount(&lfs, &cfg);
+ if (err != LFS_ERR_OK) {
+ printf("mount fail, format...\r\n");
+ err = lfs_format(&lfs, &cfg);
+ printf("format fail: %d\r\n", err);
+ }
+ printf("mount success.\r\n");
+
+ err = lfs_file_open(&lfs, &file, "test.txt", LFS_O_CREAT | LFS_O_RDWR);
+ if (err != LFS_ERR_OK) {
+ printf("open fail: %d\r\n", err);
+ }
+ printf("open success.\r\n");
+
+ nbytes = lfs_file_write(&lfs, &file, test_ctx, sizeof(test_ctx));
+ printf("write %d bytes.\r\n", nbytes);
+
+ err = lfs_file_seek(&lfs, &file, 0, LFS_SEEK_SET);
+ if (err != 0) {
+ printf("seek fail: %d\r\n", err);
+ }
+ printf("seek success.\r\n");
+
+ nbytes = lfs_file_read(&lfs, &file, read_buf, nbytes);
+ read_buf[nbytes] = '\0';
+ printf("read %d bytes.\r\n", nbytes);
+ printf("read ctx:%s\r\n", read_buf);
+
+ err = lfs_file_close(&lfs, &file);
+ if (err != LFS_ERR_OK) {
+ printf("close fail: %d\r\n", err);
+ }
+ printf("close success.\r\n");
+
+ err = lfs_unmount(&lfs);
+ if (err != LFS_ERR_OK) {
+ printf("unmount fail, %d\r\n", err);
+ }
+ printf("umount success.\r\n");
+
+ tos_mutex_destroy(&lfs_mutex);
+}
+
+void application_entry(void *arg)
+{
+ uint16_t device_id;
+
+ w25qxx_init();
+
+ printf("flash id is 0x%04x\r\n", w25qxx_read_deviceid());
+
+ littlefs_task();
+
+ while (1) {
+ tos_task_delay(1000);
+ }
+}
+
diff --git a/board/TencentOS_tiny_EVB_AIoT/littlefs/main.c b/board/TencentOS_tiny_EVB_AIoT/littlefs/main.c
new file mode 100644
index 00000000..a6d087a8
--- /dev/null
+++ b/board/TencentOS_tiny_EVB_AIoT/littlefs/main.c
@@ -0,0 +1,28 @@
+#include "mcu_init.h"
+
+#define APPLICATION_TASK_STK_SIZE 4096
+k_task_t application_task;
+uint8_t application_task_stk[APPLICATION_TASK_STK_SIZE];
+
+extern void application_entry(void *arg);
+
+#pragma weak application_entry
+void application_entry(void *arg)
+{
+ while (1) {
+ printf("This is a demo task,please use your task entry!\r\n");
+ tos_task_delay(1000);
+ }
+}
+
+int main(void)
+{
+ board_init();
+ PRINTF("Welcome to TencentOS tiny(%s)\r\n", TOS_VERSION);
+ tos_knl_init(); // TencentOS Tiny kernel initialize
+ tos_task_create(&application_task, "application_task", application_entry, NULL, 4, application_task_stk, APPLICATION_TASK_STK_SIZE, 0);
+ tos_knl_start();
+
+ while (1);
+}
+
diff --git a/components/fs/littlefs/3rdparty/LICENSE.md b/components/fs/littlefs/3rdparty/LICENSE.md
new file mode 100644
index 00000000..ed69bea4
--- /dev/null
+++ b/components/fs/littlefs/3rdparty/LICENSE.md
@@ -0,0 +1,24 @@
+Copyright (c) 2017, Arm Limited. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+- Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+- Redistributions in binary form must reproduce the above copyright notice, this
+ list of conditions and the following disclaimer in the documentation and/or
+ other materials provided with the distribution.
+- Neither the name of ARM nor the names of its contributors may be used to
+ endorse or promote products derived from this software without specific prior
+ written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/components/fs/littlefs/3rdparty/lfs.c b/components/fs/littlefs/3rdparty/lfs.c
new file mode 100644
index 00000000..d976389d
--- /dev/null
+++ b/components/fs/littlefs/3rdparty/lfs.c
@@ -0,0 +1,5430 @@
+/*
+ * The little filesystem
+ *
+ * Copyright (c) 2017, Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include "lfs.h"
+#include "lfs_util.h"
+
+#define LFS_BLOCK_NULL ((lfs_block_t)-1)
+#define LFS_BLOCK_INLINE ((lfs_block_t)-2)
+
+/// Caching block device operations ///
+static inline void lfs_cache_drop(lfs_t *lfs, lfs_cache_t *rcache) {
+ // do not zero, cheaper if cache is readonly or only going to be
+ // written with identical data (during relocates)
+ (void)lfs;
+ rcache->block = LFS_BLOCK_NULL;
+}
+
+static inline void lfs_cache_zero(lfs_t *lfs, lfs_cache_t *pcache) {
+ // zero to avoid information leak
+ memset(pcache->buffer, 0xff, lfs->cfg->cache_size);
+ pcache->block = LFS_BLOCK_NULL;
+}
+
+static int lfs_bd_read(lfs_t *lfs,
+ const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint,
+ lfs_block_t block, lfs_off_t off,
+ void *buffer, lfs_size_t size) {
+ uint8_t *data = buffer;
+ if (block >= lfs->cfg->block_count ||
+ off+size > lfs->cfg->block_size) {
+ return LFS_ERR_CORRUPT;
+ }
+
+ while (size > 0) {
+ lfs_size_t diff = size;
+
+ if (pcache && block == pcache->block &&
+ off < pcache->off + pcache->size) {
+ if (off >= pcache->off) {
+ // is already in pcache?
+ diff = lfs_min(diff, pcache->size - (off-pcache->off));
+ memcpy(data, &pcache->buffer[off-pcache->off], diff);
+
+ data += diff;
+ off += diff;
+ size -= diff;
+ continue;
+ }
+
+ // pcache takes priority
+ diff = lfs_min(diff, pcache->off-off);
+ }
+
+ if (block == rcache->block &&
+ off < rcache->off + rcache->size) {
+ if (off >= rcache->off) {
+ // is already in rcache?
+ diff = lfs_min(diff, rcache->size - (off-rcache->off));
+ memcpy(data, &rcache->buffer[off-rcache->off], diff);
+
+ data += diff;
+ off += diff;
+ size -= diff;
+ continue;
+ }
+
+ // rcache takes priority
+ diff = lfs_min(diff, rcache->off-off);
+ }
+
+ if (size >= hint && off % lfs->cfg->read_size == 0 &&
+ size >= lfs->cfg->read_size) {
+ // bypass cache?
+ diff = lfs_aligndown(diff, lfs->cfg->read_size);
+ int err = lfs->cfg->read(lfs->cfg, block, off, data, diff);
+ if (err) {
+ return err;
+ }
+
+ data += diff;
+ off += diff;
+ size -= diff;
+ continue;
+ }
+
+ // load to cache, first condition can no longer fail
+ LFS_ASSERT(block < lfs->cfg->block_count);
+ rcache->block = block;
+ rcache->off = lfs_aligndown(off, lfs->cfg->read_size);
+ rcache->size = lfs_min(
+ lfs_min(
+ lfs_alignup(off+hint, lfs->cfg->read_size),
+ lfs->cfg->block_size)
+ - rcache->off,
+ lfs->cfg->cache_size);
+ int err = lfs->cfg->read(lfs->cfg, rcache->block,
+ rcache->off, rcache->buffer, rcache->size);
+ LFS_ASSERT(err <= 0);
+ if (err) {
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+enum {
+ LFS_CMP_EQ = 0,
+ LFS_CMP_LT = 1,
+ LFS_CMP_GT = 2,
+};
+
+static int lfs_bd_cmp(lfs_t *lfs,
+ const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint,
+ lfs_block_t block, lfs_off_t off,
+ const void *buffer, lfs_size_t size) {
+ const uint8_t *data = buffer;
+ lfs_size_t diff = 0;
+
+ for (lfs_off_t i = 0; i < size; i += diff) {
+ uint8_t dat[8];
+
+ diff = lfs_min(size-i, sizeof(dat));
+ int res = lfs_bd_read(lfs,
+ pcache, rcache, hint-i,
+ block, off+i, &dat, diff);
+ if (res) {
+ return res;
+ }
+
+ res = memcmp(dat, data + i, diff);
+ if (res) {
+ return res < 0 ? LFS_CMP_LT : LFS_CMP_GT;
+ }
+ }
+
+ return LFS_CMP_EQ;
+}
+
+#ifndef LFS_READONLY
+static int lfs_bd_flush(lfs_t *lfs,
+ lfs_cache_t *pcache, lfs_cache_t *rcache, bool validate) {
+ if (pcache->block != LFS_BLOCK_NULL && pcache->block != LFS_BLOCK_INLINE) {
+ LFS_ASSERT(pcache->block < lfs->cfg->block_count);
+ lfs_size_t diff = lfs_alignup(pcache->size, lfs->cfg->prog_size);
+ int err = lfs->cfg->prog(lfs->cfg, pcache->block,
+ pcache->off, pcache->buffer, diff);
+ LFS_ASSERT(err <= 0);
+ if (err) {
+ return err;
+ }
+
+ if (validate) {
+ // check data on disk
+ lfs_cache_drop(lfs, rcache);
+ int res = lfs_bd_cmp(lfs,
+ NULL, rcache, diff,
+ pcache->block, pcache->off, pcache->buffer, diff);
+ if (res < 0) {
+ return res;
+ }
+
+ if (res != LFS_CMP_EQ) {
+ return LFS_ERR_CORRUPT;
+ }
+ }
+
+ lfs_cache_zero(lfs, pcache);
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_bd_sync(lfs_t *lfs,
+ lfs_cache_t *pcache, lfs_cache_t *rcache, bool validate) {
+ lfs_cache_drop(lfs, rcache);
+
+ int err = lfs_bd_flush(lfs, pcache, rcache, validate);
+ if (err) {
+ return err;
+ }
+
+ err = lfs->cfg->sync(lfs->cfg);
+ LFS_ASSERT(err <= 0);
+ return err;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_bd_prog(lfs_t *lfs,
+ lfs_cache_t *pcache, lfs_cache_t *rcache, bool validate,
+ lfs_block_t block, lfs_off_t off,
+ const void *buffer, lfs_size_t size) {
+ const uint8_t *data = buffer;
+ LFS_ASSERT(block == LFS_BLOCK_INLINE || block < lfs->cfg->block_count);
+ LFS_ASSERT(off + size <= lfs->cfg->block_size);
+
+ while (size > 0) {
+ if (block == pcache->block &&
+ off >= pcache->off &&
+ off < pcache->off + lfs->cfg->cache_size) {
+ // already fits in pcache?
+ lfs_size_t diff = lfs_min(size,
+ lfs->cfg->cache_size - (off-pcache->off));
+ memcpy(&pcache->buffer[off-pcache->off], data, diff);
+
+ data += diff;
+ off += diff;
+ size -= diff;
+
+ pcache->size = lfs_max(pcache->size, off - pcache->off);
+ if (pcache->size == lfs->cfg->cache_size) {
+ // eagerly flush out pcache if we fill up
+ int err = lfs_bd_flush(lfs, pcache, rcache, validate);
+ if (err) {
+ return err;
+ }
+ }
+
+ continue;
+ }
+
+ // pcache must have been flushed, either by programming and
+ // entire block or manually flushing the pcache
+ LFS_ASSERT(pcache->block == LFS_BLOCK_NULL);
+
+ // prepare pcache, first condition can no longer fail
+ pcache->block = block;
+ pcache->off = lfs_aligndown(off, lfs->cfg->prog_size);
+ pcache->size = 0;
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_bd_erase(lfs_t *lfs, lfs_block_t block) {
+ LFS_ASSERT(block < lfs->cfg->block_count);
+ int err = lfs->cfg->erase(lfs->cfg, block);
+ LFS_ASSERT(err <= 0);
+ return err;
+}
+#endif
+
+
+/// Small type-level utilities ///
+// operations on block pairs
+static inline void lfs_pair_swap(lfs_block_t pair[2]) {
+ lfs_block_t t = pair[0];
+ pair[0] = pair[1];
+ pair[1] = t;
+}
+
+static inline bool lfs_pair_isnull(const lfs_block_t pair[2]) {
+ return pair[0] == LFS_BLOCK_NULL || pair[1] == LFS_BLOCK_NULL;
+}
+
+static inline int lfs_pair_cmp(
+ const lfs_block_t paira[2],
+ const lfs_block_t pairb[2]) {
+ return !(paira[0] == pairb[0] || paira[1] == pairb[1] ||
+ paira[0] == pairb[1] || paira[1] == pairb[0]);
+}
+
+static inline bool lfs_pair_sync(
+ const lfs_block_t paira[2],
+ const lfs_block_t pairb[2]) {
+ return (paira[0] == pairb[0] && paira[1] == pairb[1]) ||
+ (paira[0] == pairb[1] && paira[1] == pairb[0]);
+}
+
+static inline void lfs_pair_fromle32(lfs_block_t pair[2]) {
+ pair[0] = lfs_fromle32(pair[0]);
+ pair[1] = lfs_fromle32(pair[1]);
+}
+
+static inline void lfs_pair_tole32(lfs_block_t pair[2]) {
+ pair[0] = lfs_tole32(pair[0]);
+ pair[1] = lfs_tole32(pair[1]);
+}
+
+// operations on 32-bit entry tags
+typedef uint32_t lfs_tag_t;
+typedef int32_t lfs_stag_t;
+
+#define LFS_MKTAG(type, id, size) \
+ (((lfs_tag_t)(type) << 20) | ((lfs_tag_t)(id) << 10) | (lfs_tag_t)(size))
+
+#define LFS_MKTAG_IF(cond, type, id, size) \
+ ((cond) ? LFS_MKTAG(type, id, size) : LFS_MKTAG(LFS_FROM_NOOP, 0, 0))
+
+#define LFS_MKTAG_IF_ELSE(cond, type1, id1, size1, type2, id2, size2) \
+ ((cond) ? LFS_MKTAG(type1, id1, size1) : LFS_MKTAG(type2, id2, size2))
+
+static inline bool lfs_tag_isvalid(lfs_tag_t tag) {
+ return !(tag & 0x80000000);
+}
+
+static inline bool lfs_tag_isdelete(lfs_tag_t tag) {
+ return ((int32_t)(tag << 22) >> 22) == -1;
+}
+
+static inline uint16_t lfs_tag_type1(lfs_tag_t tag) {
+ return (tag & 0x70000000) >> 20;
+}
+
+static inline uint16_t lfs_tag_type3(lfs_tag_t tag) {
+ return (tag & 0x7ff00000) >> 20;
+}
+
+static inline uint8_t lfs_tag_chunk(lfs_tag_t tag) {
+ return (tag & 0x0ff00000) >> 20;
+}
+
+static inline int8_t lfs_tag_splice(lfs_tag_t tag) {
+ return (int8_t)lfs_tag_chunk(tag);
+}
+
+static inline uint16_t lfs_tag_id(lfs_tag_t tag) {
+ return (tag & 0x000ffc00) >> 10;
+}
+
+static inline lfs_size_t lfs_tag_size(lfs_tag_t tag) {
+ return tag & 0x000003ff;
+}
+
+static inline lfs_size_t lfs_tag_dsize(lfs_tag_t tag) {
+ return sizeof(tag) + lfs_tag_size(tag + lfs_tag_isdelete(tag));
+}
+
+// operations on attributes in attribute lists
+struct lfs_mattr {
+ lfs_tag_t tag;
+ const void *buffer;
+};
+
+struct lfs_diskoff {
+ lfs_block_t block;
+ lfs_off_t off;
+};
+
+#define LFS_MKATTRS(...) \
+ (struct lfs_mattr[]){__VA_ARGS__}, \
+ sizeof((struct lfs_mattr[]){__VA_ARGS__}) / sizeof(struct lfs_mattr)
+
+// operations on global state
+static inline void lfs_gstate_xor(lfs_gstate_t *a, const lfs_gstate_t *b) {
+ for (int i = 0; i < 3; i++) {
+ ((uint32_t*)a)[i] ^= ((const uint32_t*)b)[i];
+ }
+}
+
+static inline bool lfs_gstate_iszero(const lfs_gstate_t *a) {
+ for (int i = 0; i < 3; i++) {
+ if (((uint32_t*)a)[i] != 0) {
+ return false;
+ }
+ }
+ return true;
+}
+
+static inline bool lfs_gstate_hasorphans(const lfs_gstate_t *a) {
+ return lfs_tag_size(a->tag);
+}
+
+static inline uint8_t lfs_gstate_getorphans(const lfs_gstate_t *a) {
+ return lfs_tag_size(a->tag);
+}
+
+static inline bool lfs_gstate_hasmove(const lfs_gstate_t *a) {
+ return lfs_tag_type1(a->tag);
+}
+
+static inline bool lfs_gstate_hasmovehere(const lfs_gstate_t *a,
+ const lfs_block_t *pair) {
+ return lfs_tag_type1(a->tag) && lfs_pair_cmp(a->pair, pair) == 0;
+}
+
+static inline void lfs_gstate_fromle32(lfs_gstate_t *a) {
+ a->tag = lfs_fromle32(a->tag);
+ a->pair[0] = lfs_fromle32(a->pair[0]);
+ a->pair[1] = lfs_fromle32(a->pair[1]);
+}
+
+static inline void lfs_gstate_tole32(lfs_gstate_t *a) {
+ a->tag = lfs_tole32(a->tag);
+ a->pair[0] = lfs_tole32(a->pair[0]);
+ a->pair[1] = lfs_tole32(a->pair[1]);
+}
+
+// other endianness operations
+static void lfs_ctz_fromle32(struct lfs_ctz *ctz) {
+ ctz->head = lfs_fromle32(ctz->head);
+ ctz->size = lfs_fromle32(ctz->size);
+}
+
+#ifndef LFS_READONLY
+static void lfs_ctz_tole32(struct lfs_ctz *ctz) {
+ ctz->head = lfs_tole32(ctz->head);
+ ctz->size = lfs_tole32(ctz->size);
+}
+#endif
+
+static inline void lfs_superblock_fromle32(lfs_superblock_t *superblock) {
+ superblock->version = lfs_fromle32(superblock->version);
+ superblock->block_size = lfs_fromle32(superblock->block_size);
+ superblock->block_count = lfs_fromle32(superblock->block_count);
+ superblock->name_max = lfs_fromle32(superblock->name_max);
+ superblock->file_max = lfs_fromle32(superblock->file_max);
+ superblock->attr_max = lfs_fromle32(superblock->attr_max);
+}
+
+static inline void lfs_superblock_tole32(lfs_superblock_t *superblock) {
+ superblock->version = lfs_tole32(superblock->version);
+ superblock->block_size = lfs_tole32(superblock->block_size);
+ superblock->block_count = lfs_tole32(superblock->block_count);
+ superblock->name_max = lfs_tole32(superblock->name_max);
+ superblock->file_max = lfs_tole32(superblock->file_max);
+ superblock->attr_max = lfs_tole32(superblock->attr_max);
+}
+
+#ifndef LFS_NO_ASSERT
+static bool lfs_mlist_isopen(struct lfs_mlist *head,
+ struct lfs_mlist *node) {
+ for (struct lfs_mlist **p = &head; *p; p = &(*p)->next) {
+ if (*p == (struct lfs_mlist*)node) {
+ return true;
+ }
+ }
+
+ return false;
+}
+#endif
+
+static void lfs_mlist_remove(lfs_t *lfs, struct lfs_mlist *mlist) {
+ for (struct lfs_mlist **p = &lfs->mlist; *p; p = &(*p)->next) {
+ if (*p == mlist) {
+ *p = (*p)->next;
+ break;
+ }
+ }
+}
+
+static void lfs_mlist_append(lfs_t *lfs, struct lfs_mlist *mlist) {
+ mlist->next = lfs->mlist;
+ lfs->mlist = mlist;
+}
+
+
+/// Internal operations predeclared here ///
+#ifndef LFS_READONLY
+static int lfs_dir_commit(lfs_t *lfs, lfs_mdir_t *dir,
+ const struct lfs_mattr *attrs, int attrcount);
+static int lfs_dir_compact(lfs_t *lfs,
+ lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount,
+ lfs_mdir_t *source, uint16_t begin, uint16_t end);
+
+static lfs_ssize_t lfs_file_rawwrite(lfs_t *lfs, lfs_file_t *file,
+ const void *buffer, lfs_size_t size);
+static int lfs_file_rawsync(lfs_t *lfs, lfs_file_t *file);
+static int lfs_file_outline(lfs_t *lfs, lfs_file_t *file);
+static int lfs_file_flush(lfs_t *lfs, lfs_file_t *file);
+
+static int lfs_fs_preporphans(lfs_t *lfs, int8_t orphans);
+static void lfs_fs_prepmove(lfs_t *lfs,
+ uint16_t id, const lfs_block_t pair[2]);
+static int lfs_fs_pred(lfs_t *lfs, const lfs_block_t dir[2],
+ lfs_mdir_t *pdir);
+static lfs_stag_t lfs_fs_parent(lfs_t *lfs, const lfs_block_t dir[2],
+ lfs_mdir_t *parent);
+static int lfs_fs_relocate(lfs_t *lfs,
+ const lfs_block_t oldpair[2], lfs_block_t newpair[2]);
+static int lfs_fs_forceconsistency(lfs_t *lfs);
+#endif
+
+#ifdef LFS_MIGRATE
+static int lfs1_traverse(lfs_t *lfs,
+ int (*cb)(void*, lfs_block_t), void *data);
+#endif
+
+static int lfs_dir_rawrewind(lfs_t *lfs, lfs_dir_t *dir);
+
+static lfs_ssize_t lfs_file_rawread(lfs_t *lfs, lfs_file_t *file,
+ void *buffer, lfs_size_t size);
+static int lfs_file_rawclose(lfs_t *lfs, lfs_file_t *file);
+static lfs_soff_t lfs_file_rawsize(lfs_t *lfs, lfs_file_t *file);
+
+static lfs_ssize_t lfs_fs_rawsize(lfs_t *lfs);
+static int lfs_fs_rawtraverse(lfs_t *lfs,
+ int (*cb)(void *data, lfs_block_t block), void *data,
+ bool includeorphans);
+
+static int lfs_deinit(lfs_t *lfs);
+static int lfs_rawunmount(lfs_t *lfs);
+
+
+/// Block allocator ///
+#ifndef LFS_READONLY
+static int lfs_alloc_lookahead(void *p, lfs_block_t block) {
+ lfs_t *lfs = (lfs_t*)p;
+ lfs_block_t off = ((block - lfs->free.off)
+ + lfs->cfg->block_count) % lfs->cfg->block_count;
+
+ if (off < lfs->free.size) {
+ lfs->free.buffer[off / 32] |= 1U << (off % 32);
+ }
+
+ return 0;
+}
+#endif
+
+// indicate allocated blocks have been committed into the filesystem, this
+// is to prevent blocks from being garbage collected in the middle of a
+// commit operation
+static void lfs_alloc_ack(lfs_t *lfs) {
+ lfs->free.ack = lfs->cfg->block_count;
+}
+
+// drop the lookahead buffer, this is done during mounting and failed
+// traversals in order to avoid invalid lookahead state
+static void lfs_alloc_drop(lfs_t *lfs) {
+ lfs->free.size = 0;
+ lfs->free.i = 0;
+ lfs_alloc_ack(lfs);
+}
+
+#ifndef LFS_READONLY
+static int lfs_alloc(lfs_t *lfs, lfs_block_t *block) {
+ while (true) {
+ while (lfs->free.i != lfs->free.size) {
+ lfs_block_t off = lfs->free.i;
+ lfs->free.i += 1;
+ lfs->free.ack -= 1;
+
+ if (!(lfs->free.buffer[off / 32] & (1U << (off % 32)))) {
+ // found a free block
+ *block = (lfs->free.off + off) % lfs->cfg->block_count;
+
+ // eagerly find next off so an alloc ack can
+ // discredit old lookahead blocks
+ while (lfs->free.i != lfs->free.size &&
+ (lfs->free.buffer[lfs->free.i / 32]
+ & (1U << (lfs->free.i % 32)))) {
+ lfs->free.i += 1;
+ lfs->free.ack -= 1;
+ }
+
+ return 0;
+ }
+ }
+
+ // check if we have looked at all blocks since last ack
+ if (lfs->free.ack == 0) {
+ LFS_ERROR("No more free space %"PRIu32,
+ lfs->free.i + lfs->free.off);
+ return LFS_ERR_NOSPC;
+ }
+
+ lfs->free.off = (lfs->free.off + lfs->free.size)
+ % lfs->cfg->block_count;
+ lfs->free.size = lfs_min(8*lfs->cfg->lookahead_size, lfs->free.ack);
+ lfs->free.i = 0;
+
+ // find mask of free blocks from tree
+ memset(lfs->free.buffer, 0, lfs->cfg->lookahead_size);
+ int err = lfs_fs_rawtraverse(lfs, lfs_alloc_lookahead, lfs, true);
+ if (err) {
+ lfs_alloc_drop(lfs);
+ return err;
+ }
+ }
+}
+#endif
+
+/// Metadata pair and directory operations ///
+static lfs_stag_t lfs_dir_getslice(lfs_t *lfs, const lfs_mdir_t *dir,
+ lfs_tag_t gmask, lfs_tag_t gtag,
+ lfs_off_t goff, void *gbuffer, lfs_size_t gsize) {
+ lfs_off_t off = dir->off;
+ lfs_tag_t ntag = dir->etag;
+ lfs_stag_t gdiff = 0;
+
+ if (lfs_gstate_hasmovehere(&lfs->gdisk, dir->pair) &&
+ lfs_tag_id(gmask) != 0 &&
+ lfs_tag_id(lfs->gdisk.tag) <= lfs_tag_id(gtag)) {
+ // synthetic moves
+ gdiff -= LFS_MKTAG(0, 1, 0);
+ }
+
+ // iterate over dir block backwards (for faster lookups)
+ while (off >= sizeof(lfs_tag_t) + lfs_tag_dsize(ntag)) {
+ off -= lfs_tag_dsize(ntag);
+ lfs_tag_t tag = ntag;
+ int err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, sizeof(ntag),
+ dir->pair[0], off, &ntag, sizeof(ntag));
+ if (err) {
+ return err;
+ }
+
+ ntag = (lfs_frombe32(ntag) ^ tag) & 0x7fffffff;
+
+ if (lfs_tag_id(gmask) != 0 &&
+ lfs_tag_type1(tag) == LFS_TYPE_SPLICE &&
+ lfs_tag_id(tag) <= lfs_tag_id(gtag - gdiff)) {
+ if (tag == (LFS_MKTAG(LFS_TYPE_CREATE, 0, 0) |
+ (LFS_MKTAG(0, 0x3ff, 0) & (gtag - gdiff)))) {
+ // found where we were created
+ return LFS_ERR_NOENT;
+ }
+
+ // move around splices
+ gdiff += LFS_MKTAG(0, lfs_tag_splice(tag), 0);
+ }
+
+ if ((gmask & tag) == (gmask & (gtag - gdiff))) {
+ if (lfs_tag_isdelete(tag)) {
+ return LFS_ERR_NOENT;
+ }
+
+ lfs_size_t diff = lfs_min(lfs_tag_size(tag), gsize);
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, diff,
+ dir->pair[0], off+sizeof(tag)+goff, gbuffer, diff);
+ if (err) {
+ return err;
+ }
+
+ memset((uint8_t*)gbuffer + diff, 0, gsize - diff);
+
+ return tag + gdiff;
+ }
+ }
+
+ return LFS_ERR_NOENT;
+}
+
+static lfs_stag_t lfs_dir_get(lfs_t *lfs, const lfs_mdir_t *dir,
+ lfs_tag_t gmask, lfs_tag_t gtag, void *buffer) {
+ return lfs_dir_getslice(lfs, dir,
+ gmask, gtag,
+ 0, buffer, lfs_tag_size(gtag));
+}
+
+static int lfs_dir_getread(lfs_t *lfs, const lfs_mdir_t *dir,
+ const lfs_cache_t *pcache, lfs_cache_t *rcache, lfs_size_t hint,
+ lfs_tag_t gmask, lfs_tag_t gtag,
+ lfs_off_t off, void *buffer, lfs_size_t size) {
+ uint8_t *data = buffer;
+ if (off+size > lfs->cfg->block_size) {
+ return LFS_ERR_CORRUPT;
+ }
+
+ while (size > 0) {
+ lfs_size_t diff = size;
+
+ if (pcache && pcache->block == LFS_BLOCK_INLINE &&
+ off < pcache->off + pcache->size) {
+ if (off >= pcache->off) {
+ // is already in pcache?
+ diff = lfs_min(diff, pcache->size - (off-pcache->off));
+ memcpy(data, &pcache->buffer[off-pcache->off], diff);
+
+ data += diff;
+ off += diff;
+ size -= diff;
+ continue;
+ }
+
+ // pcache takes priority
+ diff = lfs_min(diff, pcache->off-off);
+ }
+
+ if (rcache->block == LFS_BLOCK_INLINE &&
+ off < rcache->off + rcache->size) {
+ if (off >= rcache->off) {
+ // is already in rcache?
+ diff = lfs_min(diff, rcache->size - (off-rcache->off));
+ memcpy(data, &rcache->buffer[off-rcache->off], diff);
+
+ data += diff;
+ off += diff;
+ size -= diff;
+ continue;
+ }
+
+ // rcache takes priority
+ diff = lfs_min(diff, rcache->off-off);
+ }
+
+ // load to cache, first condition can no longer fail
+ rcache->block = LFS_BLOCK_INLINE;
+ rcache->off = lfs_aligndown(off, lfs->cfg->read_size);
+ rcache->size = lfs_min(lfs_alignup(off+hint, lfs->cfg->read_size),
+ lfs->cfg->cache_size);
+ int err = lfs_dir_getslice(lfs, dir, gmask, gtag,
+ rcache->off, rcache->buffer, rcache->size);
+ if (err < 0) {
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+#ifndef LFS_READONLY
+static int lfs_dir_traverse_filter(void *p,
+ lfs_tag_t tag, const void *buffer) {
+ lfs_tag_t *filtertag = p;
+ (void)buffer;
+
+ // which mask depends on unique bit in tag structure
+ uint32_t mask = (tag & LFS_MKTAG(0x100, 0, 0))
+ ? LFS_MKTAG(0x7ff, 0x3ff, 0)
+ : LFS_MKTAG(0x700, 0x3ff, 0);
+
+ // check for redundancy
+ if ((mask & tag) == (mask & *filtertag) ||
+ lfs_tag_isdelete(*filtertag) ||
+ (LFS_MKTAG(0x7ff, 0x3ff, 0) & tag) == (
+ LFS_MKTAG(LFS_TYPE_DELETE, 0, 0) |
+ (LFS_MKTAG(0, 0x3ff, 0) & *filtertag))) {
+ return true;
+ }
+
+ // check if we need to adjust for created/deleted tags
+ if (lfs_tag_type1(tag) == LFS_TYPE_SPLICE &&
+ lfs_tag_id(tag) <= lfs_tag_id(*filtertag)) {
+ *filtertag += LFS_MKTAG(0, lfs_tag_splice(tag), 0);
+ }
+
+ return false;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_traverse(lfs_t *lfs,
+ const lfs_mdir_t *dir, lfs_off_t off, lfs_tag_t ptag,
+ const struct lfs_mattr *attrs, int attrcount,
+ lfs_tag_t tmask, lfs_tag_t ttag,
+ uint16_t begin, uint16_t end, int16_t diff,
+ int (*cb)(void *data, lfs_tag_t tag, const void *buffer), void *data) {
+ // iterate over directory and attrs
+ while (true) {
+ lfs_tag_t tag;
+ const void *buffer;
+ struct lfs_diskoff disk;
+ if (off+lfs_tag_dsize(ptag) < dir->off) {
+ off += lfs_tag_dsize(ptag);
+ int err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, sizeof(tag),
+ dir->pair[0], off, &tag, sizeof(tag));
+ if (err) {
+ return err;
+ }
+
+ tag = (lfs_frombe32(tag) ^ ptag) | 0x80000000;
+ disk.block = dir->pair[0];
+ disk.off = off+sizeof(lfs_tag_t);
+ buffer = &disk;
+ ptag = tag;
+ } else if (attrcount > 0) {
+ tag = attrs[0].tag;
+ buffer = attrs[0].buffer;
+ attrs += 1;
+ attrcount -= 1;
+ } else {
+ return 0;
+ }
+
+ lfs_tag_t mask = LFS_MKTAG(0x7ff, 0, 0);
+ if ((mask & tmask & tag) != (mask & tmask & ttag)) {
+ continue;
+ }
+
+ // do we need to filter? inlining the filtering logic here allows
+ // for some minor optimizations
+ if (lfs_tag_id(tmask) != 0) {
+ // scan for duplicates and update tag based on creates/deletes
+ int filter = lfs_dir_traverse(lfs,
+ dir, off, ptag, attrs, attrcount,
+ 0, 0, 0, 0, 0,
+ lfs_dir_traverse_filter, &tag);
+ if (filter < 0) {
+ return filter;
+ }
+
+ if (filter) {
+ continue;
+ }
+
+ // in filter range?
+ if (!(lfs_tag_id(tag) >= begin && lfs_tag_id(tag) < end)) {
+ continue;
+ }
+ }
+
+ // handle special cases for mcu-side operations
+ if (lfs_tag_type3(tag) == LFS_FROM_NOOP) {
+ // do nothing
+ } else if (lfs_tag_type3(tag) == LFS_FROM_MOVE) {
+ uint16_t fromid = lfs_tag_size(tag);
+ uint16_t toid = lfs_tag_id(tag);
+ int err = lfs_dir_traverse(lfs,
+ buffer, 0, 0xffffffff, NULL, 0,
+ LFS_MKTAG(0x600, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, 0, 0),
+ fromid, fromid+1, toid-fromid+diff,
+ cb, data);
+ if (err) {
+ return err;
+ }
+ } else if (lfs_tag_type3(tag) == LFS_FROM_USERATTRS) {
+ for (unsigned i = 0; i < lfs_tag_size(tag); i++) {
+ const struct lfs_attr *a = buffer;
+ int err = cb(data, LFS_MKTAG(LFS_TYPE_USERATTR + a[i].type,
+ lfs_tag_id(tag) + diff, a[i].size), a[i].buffer);
+ if (err) {
+ return err;
+ }
+ }
+ } else {
+ int err = cb(data, tag + LFS_MKTAG(0, diff, 0), buffer);
+ if (err) {
+ return err;
+ }
+ }
+ }
+}
+#endif
+
+static lfs_stag_t lfs_dir_fetchmatch(lfs_t *lfs,
+ lfs_mdir_t *dir, const lfs_block_t pair[2],
+ lfs_tag_t fmask, lfs_tag_t ftag, uint16_t *id,
+ int (*cb)(void *data, lfs_tag_t tag, const void *buffer), void *data) {
+ // we can find tag very efficiently during a fetch, since we're already
+ // scanning the entire directory
+ lfs_stag_t besttag = -1;
+
+ // if either block address is invalid we return LFS_ERR_CORRUPT here,
+ // otherwise later writes to the pair could fail
+ if (pair[0] >= lfs->cfg->block_count || pair[1] >= lfs->cfg->block_count) {
+ return LFS_ERR_CORRUPT;
+ }
+
+ // find the block with the most recent revision
+ uint32_t revs[2] = {0, 0};
+ int r = 0;
+ for (int i = 0; i < 2; i++) {
+ int err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, sizeof(revs[i]),
+ pair[i], 0, &revs[i], sizeof(revs[i]));
+ revs[i] = lfs_fromle32(revs[i]);
+ if (err && err != LFS_ERR_CORRUPT) {
+ return err;
+ }
+
+ if (err != LFS_ERR_CORRUPT &&
+ lfs_scmp(revs[i], revs[(i+1)%2]) > 0) {
+ r = i;
+ }
+ }
+
+ dir->pair[0] = pair[(r+0)%2];
+ dir->pair[1] = pair[(r+1)%2];
+ dir->rev = revs[(r+0)%2];
+ dir->off = 0; // nonzero = found some commits
+
+ // now scan tags to fetch the actual dir and find possible match
+ for (int i = 0; i < 2; i++) {
+ lfs_off_t off = 0;
+ lfs_tag_t ptag = 0xffffffff;
+
+ uint16_t tempcount = 0;
+ lfs_block_t temptail[2] = {LFS_BLOCK_NULL, LFS_BLOCK_NULL};
+ bool tempsplit = false;
+ lfs_stag_t tempbesttag = besttag;
+
+ dir->rev = lfs_tole32(dir->rev);
+ uint32_t crc = lfs_crc(0xffffffff, &dir->rev, sizeof(dir->rev));
+ dir->rev = lfs_fromle32(dir->rev);
+
+ while (true) {
+ // extract next tag
+ lfs_tag_t tag;
+ off += lfs_tag_dsize(ptag);
+ int err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, lfs->cfg->block_size,
+ dir->pair[0], off, &tag, sizeof(tag));
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ // can't continue?
+ dir->erased = false;
+ break;
+ }
+ return err;
+ }
+
+ crc = lfs_crc(crc, &tag, sizeof(tag));
+ tag = lfs_frombe32(tag) ^ ptag;
+
+ // next commit not yet programmed or we're not in valid range
+ if (!lfs_tag_isvalid(tag)) {
+ dir->erased = (lfs_tag_type1(ptag) == LFS_TYPE_CRC &&
+ dir->off % lfs->cfg->prog_size == 0);
+ break;
+ } else if (off + lfs_tag_dsize(tag) > lfs->cfg->block_size) {
+ dir->erased = false;
+ break;
+ }
+
+ ptag = tag;
+
+ if (lfs_tag_type1(tag) == LFS_TYPE_CRC) {
+ // check the crc attr
+ uint32_t dcrc;
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, lfs->cfg->block_size,
+ dir->pair[0], off+sizeof(tag), &dcrc, sizeof(dcrc));
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ dir->erased = false;
+ break;
+ }
+ return err;
+ }
+ dcrc = lfs_fromle32(dcrc);
+
+ if (crc != dcrc) {
+ dir->erased = false;
+ break;
+ }
+
+ // reset the next bit if we need to
+ ptag ^= (lfs_tag_t)(lfs_tag_chunk(tag) & 1U) << 31;
+
+ // toss our crc into the filesystem seed for
+ // pseudorandom numbers, note we use another crc here
+ // as a collection function because it is sufficiently
+ // random and convenient
+ lfs->seed = lfs_crc(lfs->seed, &crc, sizeof(crc));
+
+ // update with what's found so far
+ besttag = tempbesttag;
+ dir->off = off + lfs_tag_dsize(tag);
+ dir->etag = ptag;
+ dir->count = tempcount;
+ dir->tail[0] = temptail[0];
+ dir->tail[1] = temptail[1];
+ dir->split = tempsplit;
+
+ // reset crc
+ crc = 0xffffffff;
+ continue;
+ }
+
+ // crc the entry first, hopefully leaving it in the cache
+ for (lfs_off_t j = sizeof(tag); j < lfs_tag_dsize(tag); j++) {
+ uint8_t dat;
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, lfs->cfg->block_size,
+ dir->pair[0], off+j, &dat, 1);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ dir->erased = false;
+ break;
+ }
+ return err;
+ }
+
+ crc = lfs_crc(crc, &dat, 1);
+ }
+
+ // directory modification tags?
+ if (lfs_tag_type1(tag) == LFS_TYPE_NAME) {
+ // increase count of files if necessary
+ if (lfs_tag_id(tag) >= tempcount) {
+ tempcount = lfs_tag_id(tag) + 1;
+ }
+ } else if (lfs_tag_type1(tag) == LFS_TYPE_SPLICE) {
+ tempcount += lfs_tag_splice(tag);
+
+ if (tag == (LFS_MKTAG(LFS_TYPE_DELETE, 0, 0) |
+ (LFS_MKTAG(0, 0x3ff, 0) & tempbesttag))) {
+ tempbesttag |= 0x80000000;
+ } else if (tempbesttag != -1 &&
+ lfs_tag_id(tag) <= lfs_tag_id(tempbesttag)) {
+ tempbesttag += LFS_MKTAG(0, lfs_tag_splice(tag), 0);
+ }
+ } else if (lfs_tag_type1(tag) == LFS_TYPE_TAIL) {
+ tempsplit = (lfs_tag_chunk(tag) & 1);
+
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, lfs->cfg->block_size,
+ dir->pair[0], off+sizeof(tag), &temptail, 8);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ dir->erased = false;
+ break;
+ }
+ }
+ lfs_pair_fromle32(temptail);
+ }
+
+ // found a match for our fetcher?
+ if ((fmask & tag) == (fmask & ftag)) {
+ int res = cb(data, tag, &(struct lfs_diskoff){
+ dir->pair[0], off+sizeof(tag)});
+ if (res < 0) {
+ if (res == LFS_ERR_CORRUPT) {
+ dir->erased = false;
+ break;
+ }
+ return res;
+ }
+
+ if (res == LFS_CMP_EQ) {
+ // found a match
+ tempbesttag = tag;
+ } else if ((LFS_MKTAG(0x7ff, 0x3ff, 0) & tag) ==
+ (LFS_MKTAG(0x7ff, 0x3ff, 0) & tempbesttag)) {
+ // found an identical tag, but contents didn't match
+ // this must mean that our besttag has been overwritten
+ tempbesttag = -1;
+ } else if (res == LFS_CMP_GT &&
+ lfs_tag_id(tag) <= lfs_tag_id(tempbesttag)) {
+ // found a greater match, keep track to keep things sorted
+ tempbesttag = tag | 0x80000000;
+ }
+ }
+ }
+
+ // consider what we have good enough
+ if (dir->off > 0) {
+ // synthetic move
+ if (lfs_gstate_hasmovehere(&lfs->gdisk, dir->pair)) {
+ if (lfs_tag_id(lfs->gdisk.tag) == lfs_tag_id(besttag)) {
+ besttag |= 0x80000000;
+ } else if (besttag != -1 &&
+ lfs_tag_id(lfs->gdisk.tag) < lfs_tag_id(besttag)) {
+ besttag -= LFS_MKTAG(0, 1, 0);
+ }
+ }
+
+ // found tag? or found best id?
+ if (id) {
+ *id = lfs_min(lfs_tag_id(besttag), dir->count);
+ }
+
+ if (lfs_tag_isvalid(besttag)) {
+ return besttag;
+ } else if (lfs_tag_id(besttag) < dir->count) {
+ return LFS_ERR_NOENT;
+ } else {
+ return 0;
+ }
+ }
+
+ // failed, try the other block?
+ lfs_pair_swap(dir->pair);
+ dir->rev = revs[(r+1)%2];
+ }
+
+ LFS_ERROR("Corrupted dir pair at {0x%"PRIx32", 0x%"PRIx32"}",
+ dir->pair[0], dir->pair[1]);
+ return LFS_ERR_CORRUPT;
+}
+
+static int lfs_dir_fetch(lfs_t *lfs,
+ lfs_mdir_t *dir, const lfs_block_t pair[2]) {
+ // note, mask=-1, tag=-1 can never match a tag since this
+ // pattern has the invalid bit set
+ return (int)lfs_dir_fetchmatch(lfs, dir, pair,
+ (lfs_tag_t)-1, (lfs_tag_t)-1, NULL, NULL, NULL);
+}
+
+static int lfs_dir_getgstate(lfs_t *lfs, const lfs_mdir_t *dir,
+ lfs_gstate_t *gstate) {
+ lfs_gstate_t temp;
+ lfs_stag_t res = lfs_dir_get(lfs, dir, LFS_MKTAG(0x7ff, 0, 0),
+ LFS_MKTAG(LFS_TYPE_MOVESTATE, 0, sizeof(temp)), &temp);
+ if (res < 0 && res != LFS_ERR_NOENT) {
+ return res;
+ }
+
+ if (res != LFS_ERR_NOENT) {
+ // xor together to find resulting gstate
+ lfs_gstate_fromle32(&temp);
+ lfs_gstate_xor(gstate, &temp);
+ }
+
+ return 0;
+}
+
+static int lfs_dir_getinfo(lfs_t *lfs, lfs_mdir_t *dir,
+ uint16_t id, struct lfs_info *info) {
+ if (id == 0x3ff) {
+ // special case for root
+ strcpy(info->name, "/");
+ info->type = LFS_TYPE_DIR;
+ return 0;
+ }
+
+ lfs_stag_t tag = lfs_dir_get(lfs, dir, LFS_MKTAG(0x780, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_NAME, id, lfs->name_max+1), info->name);
+ if (tag < 0) {
+ return (int)tag;
+ }
+
+ info->type = lfs_tag_type3(tag);
+
+ struct lfs_ctz ctz;
+ tag = lfs_dir_get(lfs, dir, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, id, sizeof(ctz)), &ctz);
+ if (tag < 0) {
+ return (int)tag;
+ }
+ lfs_ctz_fromle32(&ctz);
+
+ if (lfs_tag_type3(tag) == LFS_TYPE_CTZSTRUCT) {
+ info->size = ctz.size;
+ } else if (lfs_tag_type3(tag) == LFS_TYPE_INLINESTRUCT) {
+ info->size = lfs_tag_size(tag);
+ }
+
+ return 0;
+}
+
+struct lfs_dir_find_match {
+ lfs_t *lfs;
+ const void *name;
+ lfs_size_t size;
+};
+
+static int lfs_dir_find_match(void *data,
+ lfs_tag_t tag, const void *buffer) {
+ struct lfs_dir_find_match *name = data;
+ lfs_t *lfs = name->lfs;
+ const struct lfs_diskoff *disk = buffer;
+
+ // compare with disk
+ lfs_size_t diff = lfs_min(name->size, lfs_tag_size(tag));
+ int res = lfs_bd_cmp(lfs,
+ NULL, &lfs->rcache, diff,
+ disk->block, disk->off, name->name, diff);
+ if (res != LFS_CMP_EQ) {
+ return res;
+ }
+
+ // only equal if our size is still the same
+ if (name->size != lfs_tag_size(tag)) {
+ return (name->size < lfs_tag_size(tag)) ? LFS_CMP_LT : LFS_CMP_GT;
+ }
+
+ // found a match!
+ return LFS_CMP_EQ;
+}
+
+static lfs_stag_t lfs_dir_find(lfs_t *lfs, lfs_mdir_t *dir,
+ const char **path, uint16_t *id) {
+ // we reduce path to a single name if we can find it
+ const char *name = *path;
+ if (id) {
+ *id = 0x3ff;
+ }
+
+ // default to root dir
+ lfs_stag_t tag = LFS_MKTAG(LFS_TYPE_DIR, 0x3ff, 0);
+ dir->tail[0] = lfs->root[0];
+ dir->tail[1] = lfs->root[1];
+
+ while (true) {
+nextname:
+ // skip slashes
+ name += strspn(name, "/");
+ lfs_size_t namelen = strcspn(name, "/");
+
+ // skip '.' and root '..'
+ if ((namelen == 1 && memcmp(name, ".", 1) == 0) ||
+ (namelen == 2 && memcmp(name, "..", 2) == 0)) {
+ name += namelen;
+ goto nextname;
+ }
+
+ // skip if matched by '..' in name
+ const char *suffix = name + namelen;
+ lfs_size_t sufflen;
+ int depth = 1;
+ while (true) {
+ suffix += strspn(suffix, "/");
+ sufflen = strcspn(suffix, "/");
+ if (sufflen == 0) {
+ break;
+ }
+
+ if (sufflen == 2 && memcmp(suffix, "..", 2) == 0) {
+ depth -= 1;
+ if (depth == 0) {
+ name = suffix + sufflen;
+ goto nextname;
+ }
+ } else {
+ depth += 1;
+ }
+
+ suffix += sufflen;
+ }
+
+ // found path
+ if (name[0] == '\0') {
+ return tag;
+ }
+
+ // update what we've found so far
+ *path = name;
+
+ // only continue if we hit a directory
+ if (lfs_tag_type3(tag) != LFS_TYPE_DIR) {
+ return LFS_ERR_NOTDIR;
+ }
+
+ // grab the entry data
+ if (lfs_tag_id(tag) != 0x3ff) {
+ lfs_stag_t res = lfs_dir_get(lfs, dir, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, lfs_tag_id(tag), 8), dir->tail);
+ if (res < 0) {
+ return res;
+ }
+ lfs_pair_fromle32(dir->tail);
+ }
+
+ // find entry matching name
+ while (true) {
+ tag = lfs_dir_fetchmatch(lfs, dir, dir->tail,
+ LFS_MKTAG(0x780, 0, 0),
+ LFS_MKTAG(LFS_TYPE_NAME, 0, namelen),
+ // are we last name?
+ (strchr(name, '/') == NULL) ? id : NULL,
+ lfs_dir_find_match, &(struct lfs_dir_find_match){
+ lfs, name, namelen});
+ if (tag < 0) {
+ return tag;
+ }
+
+ if (tag) {
+ break;
+ }
+
+ if (!dir->split) {
+ return LFS_ERR_NOENT;
+ }
+ }
+
+ // to next name
+ name += namelen;
+ }
+}
+
+// commit logic
+struct lfs_commit {
+ lfs_block_t block;
+ lfs_off_t off;
+ lfs_tag_t ptag;
+ uint32_t crc;
+
+ lfs_off_t begin;
+ lfs_off_t end;
+};
+
+#ifndef LFS_READONLY
+static int lfs_dir_commitprog(lfs_t *lfs, struct lfs_commit *commit,
+ const void *buffer, lfs_size_t size) {
+ int err = lfs_bd_prog(lfs,
+ &lfs->pcache, &lfs->rcache, false,
+ commit->block, commit->off ,
+ (const uint8_t*)buffer, size);
+ if (err) {
+ return err;
+ }
+
+ commit->crc = lfs_crc(commit->crc, buffer, size);
+ commit->off += size;
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_commitattr(lfs_t *lfs, struct lfs_commit *commit,
+ lfs_tag_t tag, const void *buffer) {
+ // check if we fit
+ lfs_size_t dsize = lfs_tag_dsize(tag);
+ if (commit->off + dsize > commit->end) {
+ return LFS_ERR_NOSPC;
+ }
+
+ // write out tag
+ lfs_tag_t ntag = lfs_tobe32((tag & 0x7fffffff) ^ commit->ptag);
+ int err = lfs_dir_commitprog(lfs, commit, &ntag, sizeof(ntag));
+ if (err) {
+ return err;
+ }
+
+ if (!(tag & 0x80000000)) {
+ // from memory
+ err = lfs_dir_commitprog(lfs, commit, buffer, dsize-sizeof(tag));
+ if (err) {
+ return err;
+ }
+ } else {
+ // from disk
+ const struct lfs_diskoff *disk = buffer;
+ for (lfs_off_t i = 0; i < dsize-sizeof(tag); i++) {
+ // rely on caching to make this efficient
+ uint8_t dat;
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, dsize-sizeof(tag)-i,
+ disk->block, disk->off+i, &dat, 1);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_dir_commitprog(lfs, commit, &dat, 1);
+ if (err) {
+ return err;
+ }
+ }
+ }
+
+ commit->ptag = tag & 0x7fffffff;
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_commitcrc(lfs_t *lfs, struct lfs_commit *commit) {
+ // align to program units
+ const lfs_off_t end = lfs_alignup(commit->off + 2*sizeof(uint32_t),
+ lfs->cfg->prog_size);
+
+ lfs_off_t off1 = 0;
+ uint32_t crc1 = 0;
+
+ // create crc tags to fill up remainder of commit, note that
+ // padding is not crced, which lets fetches skip padding but
+ // makes committing a bit more complicated
+ while (commit->off < end) {
+ lfs_off_t off = commit->off + sizeof(lfs_tag_t);
+ lfs_off_t noff = lfs_min(end - off, 0x3fe) + off;
+ if (noff < end) {
+ noff = lfs_min(noff, end - 2*sizeof(uint32_t));
+ }
+
+ // read erased state from next program unit
+ lfs_tag_t tag = 0xffffffff;
+ int err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, sizeof(tag),
+ commit->block, noff, &tag, sizeof(tag));
+ if (err && err != LFS_ERR_CORRUPT) {
+ return err;
+ }
+
+ // build crc tag
+ bool reset = ~lfs_frombe32(tag) >> 31;
+ tag = LFS_MKTAG(LFS_TYPE_CRC + reset, 0x3ff, noff - off);
+
+ // write out crc
+ uint32_t footer[2];
+ footer[0] = lfs_tobe32(tag ^ commit->ptag);
+ commit->crc = lfs_crc(commit->crc, &footer[0], sizeof(footer[0]));
+ footer[1] = lfs_tole32(commit->crc);
+ err = lfs_bd_prog(lfs,
+ &lfs->pcache, &lfs->rcache, false,
+ commit->block, commit->off, &footer, sizeof(footer));
+ if (err) {
+ return err;
+ }
+
+ // keep track of non-padding checksum to verify
+ if (off1 == 0) {
+ off1 = commit->off + sizeof(uint32_t);
+ crc1 = commit->crc;
+ }
+
+ commit->off += sizeof(tag)+lfs_tag_size(tag);
+ commit->ptag = tag ^ ((lfs_tag_t)reset << 31);
+ commit->crc = 0xffffffff; // reset crc for next "commit"
+ }
+
+ // flush buffers
+ int err = lfs_bd_sync(lfs, &lfs->pcache, &lfs->rcache, false);
+ if (err) {
+ return err;
+ }
+
+ // successful commit, check checksums to make sure
+ lfs_off_t off = commit->begin;
+ lfs_off_t noff = off1;
+ while (off < end) {
+ uint32_t crc = 0xffffffff;
+ for (lfs_off_t i = off; i < noff+sizeof(uint32_t); i++) {
+ // check against written crc, may catch blocks that
+ // become readonly and match our commit size exactly
+ if (i == off1 && crc != crc1) {
+ return LFS_ERR_CORRUPT;
+ }
+
+ // leave it up to caching to make this efficient
+ uint8_t dat;
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, noff+sizeof(uint32_t)-i,
+ commit->block, i, &dat, 1);
+ if (err) {
+ return err;
+ }
+
+ crc = lfs_crc(crc, &dat, 1);
+ }
+
+ // detected write error?
+ if (crc != 0) {
+ return LFS_ERR_CORRUPT;
+ }
+
+ // skip padding
+ off = lfs_min(end - noff, 0x3fe) + noff;
+ if (off < end) {
+ off = lfs_min(off, end - 2*sizeof(uint32_t));
+ }
+ noff = off + sizeof(uint32_t);
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_alloc(lfs_t *lfs, lfs_mdir_t *dir) {
+ // allocate pair of dir blocks (backwards, so we write block 1 first)
+ for (int i = 0; i < 2; i++) {
+ int err = lfs_alloc(lfs, &dir->pair[(i+1)%2]);
+ if (err) {
+ return err;
+ }
+ }
+
+ // zero for reproducability in case initial block is unreadable
+ dir->rev = 0;
+
+ // rather than clobbering one of the blocks we just pretend
+ // the revision may be valid
+ int err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, sizeof(dir->rev),
+ dir->pair[0], 0, &dir->rev, sizeof(dir->rev));
+ dir->rev = lfs_fromle32(dir->rev);
+ if (err && err != LFS_ERR_CORRUPT) {
+ return err;
+ }
+
+ // to make sure we don't immediately evict, align the new revision count
+ // to our block_cycles modulus, see lfs_dir_compact for why our modulus
+ // is tweaked this way
+ if (lfs->cfg->block_cycles > 0) {
+ dir->rev = lfs_alignup(dir->rev, ((lfs->cfg->block_cycles+1)|1));
+ }
+
+ // set defaults
+ dir->off = sizeof(dir->rev);
+ dir->etag = 0xffffffff;
+ dir->count = 0;
+ dir->tail[0] = LFS_BLOCK_NULL;
+ dir->tail[1] = LFS_BLOCK_NULL;
+ dir->erased = false;
+ dir->split = false;
+
+ // don't write out yet, let caller take care of that
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_drop(lfs_t *lfs, lfs_mdir_t *dir, lfs_mdir_t *tail) {
+ // steal state
+ int err = lfs_dir_getgstate(lfs, tail, &lfs->gdelta);
+ if (err) {
+ return err;
+ }
+
+ // steal tail
+ lfs_pair_tole32(tail->tail);
+ err = lfs_dir_commit(lfs, dir, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_TAIL + tail->split, 0x3ff, 8), tail->tail}));
+ lfs_pair_fromle32(tail->tail);
+ if (err) {
+ return err;
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_split(lfs_t *lfs,
+ lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount,
+ lfs_mdir_t *source, uint16_t split, uint16_t end) {
+ // create tail directory
+ lfs_alloc_ack(lfs);
+ lfs_mdir_t tail;
+ int err = lfs_dir_alloc(lfs, &tail);
+ if (err) {
+ return err;
+ }
+
+ tail.split = dir->split;
+ tail.tail[0] = dir->tail[0];
+ tail.tail[1] = dir->tail[1];
+
+ err = lfs_dir_compact(lfs, &tail, attrs, attrcount, source, split, end);
+ if (err) {
+ return err;
+ }
+
+ dir->tail[0] = tail.pair[0];
+ dir->tail[1] = tail.pair[1];
+ dir->split = true;
+
+ // update root if needed
+ if (lfs_pair_cmp(dir->pair, lfs->root) == 0 && split == 0) {
+ lfs->root[0] = tail.pair[0];
+ lfs->root[1] = tail.pair[1];
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_commit_size(void *p, lfs_tag_t tag, const void *buffer) {
+ lfs_size_t *size = p;
+ (void)buffer;
+
+ *size += lfs_tag_dsize(tag);
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+struct lfs_dir_commit_commit {
+ lfs_t *lfs;
+ struct lfs_commit *commit;
+};
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_commit_commit(void *p, lfs_tag_t tag, const void *buffer) {
+ struct lfs_dir_commit_commit *commit = p;
+ return lfs_dir_commitattr(commit->lfs, commit->commit, tag, buffer);
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_compact(lfs_t *lfs,
+ lfs_mdir_t *dir, const struct lfs_mattr *attrs, int attrcount,
+ lfs_mdir_t *source, uint16_t begin, uint16_t end) {
+ // save some state in case block is bad
+ const lfs_block_t oldpair[2] = {dir->pair[0], dir->pair[1]};
+ bool relocated = false;
+ bool tired = false;
+
+ // should we split?
+ while (end - begin > 1) {
+ // find size
+ lfs_size_t size = 0;
+ int err = lfs_dir_traverse(lfs,
+ source, 0, 0xffffffff, attrs, attrcount,
+ LFS_MKTAG(0x400, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_NAME, 0, 0),
+ begin, end, -begin,
+ lfs_dir_commit_size, &size);
+ if (err) {
+ return err;
+ }
+
+ // space is complicated, we need room for tail, crc, gstate,
+ // cleanup delete, and we cap at half a block to give room
+ // for metadata updates.
+ if (end - begin < 0xff &&
+ size <= lfs_min(lfs->cfg->block_size - 36,
+ lfs_alignup((lfs->cfg->metadata_max ?
+ lfs->cfg->metadata_max : lfs->cfg->block_size)/2,
+ lfs->cfg->prog_size))) {
+ break;
+ }
+
+ // can't fit, need to split, we should really be finding the
+ // largest size that fits with a small binary search, but right now
+ // it's not worth the code size
+ uint16_t split = (end - begin) / 2;
+ err = lfs_dir_split(lfs, dir, attrs, attrcount,
+ source, begin+split, end);
+ if (err) {
+ // if we fail to split, we may be able to overcompact, unless
+ // we're too big for even the full block, in which case our
+ // only option is to error
+ if (err == LFS_ERR_NOSPC && size <= lfs->cfg->block_size - 36) {
+ break;
+ }
+ return err;
+ }
+
+ end = begin + split;
+ }
+
+ // increment revision count
+ dir->rev += 1;
+ // If our revision count == n * block_cycles, we should force a relocation,
+ // this is how littlefs wear-levels at the metadata-pair level. Note that we
+ // actually use (block_cycles+1)|1, this is to avoid two corner cases:
+ // 1. block_cycles = 1, which would prevent relocations from terminating
+ // 2. block_cycles = 2n, which, due to aliasing, would only ever relocate
+ // one metadata block in the pair, effectively making this useless
+ if (lfs->cfg->block_cycles > 0 &&
+ (dir->rev % ((lfs->cfg->block_cycles+1)|1) == 0)) {
+ if (lfs_pair_cmp(dir->pair, (const lfs_block_t[2]){0, 1}) == 0) {
+ // oh no! we're writing too much to the superblock,
+ // should we expand?
+ lfs_ssize_t res = lfs_fs_rawsize(lfs);
+ if (res < 0) {
+ return res;
+ }
+
+ // do we have extra space? littlefs can't reclaim this space
+ // by itself, so expand cautiously
+ if ((lfs_size_t)res < lfs->cfg->block_count/2) {
+ LFS_DEBUG("Expanding superblock at rev %"PRIu32, dir->rev);
+ int err = lfs_dir_split(lfs, dir, attrs, attrcount,
+ source, begin, end);
+ if (err && err != LFS_ERR_NOSPC) {
+ return err;
+ }
+
+ // welp, we tried, if we ran out of space there's not much
+ // we can do, we'll error later if we've become frozen
+ if (!err) {
+ end = begin;
+ }
+ }
+#ifdef LFS_MIGRATE
+ } else if (lfs->lfs1) {
+ // do not proactively relocate blocks during migrations, this
+ // can cause a number of failure states such: clobbering the
+ // v1 superblock if we relocate root, and invalidating directory
+ // pointers if we relocate the head of a directory. On top of
+ // this, relocations increase the overall complexity of
+ // lfs_migration, which is already a delicate operation.
+#endif
+ } else {
+ // we're writing too much, time to relocate
+ tired = true;
+ goto relocate;
+ }
+ }
+
+ // begin loop to commit compaction to blocks until a compact sticks
+ while (true) {
+ {
+ // setup commit state
+ struct lfs_commit commit = {
+ .block = dir->pair[1],
+ .off = 0,
+ .ptag = 0xffffffff,
+ .crc = 0xffffffff,
+
+ .begin = 0,
+ .end = (lfs->cfg->metadata_max ?
+ lfs->cfg->metadata_max : lfs->cfg->block_size) - 8,
+ };
+
+ // erase block to write to
+ int err = lfs_bd_erase(lfs, dir->pair[1]);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ // write out header
+ dir->rev = lfs_tole32(dir->rev);
+ err = lfs_dir_commitprog(lfs, &commit,
+ &dir->rev, sizeof(dir->rev));
+ dir->rev = lfs_fromle32(dir->rev);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ // traverse the directory, this time writing out all unique tags
+ err = lfs_dir_traverse(lfs,
+ source, 0, 0xffffffff, attrs, attrcount,
+ LFS_MKTAG(0x400, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_NAME, 0, 0),
+ begin, end, -begin,
+ lfs_dir_commit_commit, &(struct lfs_dir_commit_commit){
+ lfs, &commit});
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ // commit tail, which may be new after last size check
+ if (!lfs_pair_isnull(dir->tail)) {
+ lfs_pair_tole32(dir->tail);
+ err = lfs_dir_commitattr(lfs, &commit,
+ LFS_MKTAG(LFS_TYPE_TAIL + dir->split, 0x3ff, 8),
+ dir->tail);
+ lfs_pair_fromle32(dir->tail);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+ }
+
+ // bring over gstate?
+ lfs_gstate_t delta = {0};
+ if (!relocated) {
+ lfs_gstate_xor(&delta, &lfs->gdisk);
+ lfs_gstate_xor(&delta, &lfs->gstate);
+ }
+ lfs_gstate_xor(&delta, &lfs->gdelta);
+ delta.tag &= ~LFS_MKTAG(0, 0, 0x3ff);
+
+ err = lfs_dir_getgstate(lfs, dir, &delta);
+ if (err) {
+ return err;
+ }
+
+ if (!lfs_gstate_iszero(&delta)) {
+ lfs_gstate_tole32(&delta);
+ err = lfs_dir_commitattr(lfs, &commit,
+ LFS_MKTAG(LFS_TYPE_MOVESTATE, 0x3ff,
+ sizeof(delta)), &delta);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+ }
+
+ // complete commit with crc
+ err = lfs_dir_commitcrc(lfs, &commit);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ // successful compaction, swap dir pair to indicate most recent
+ LFS_ASSERT(commit.off % lfs->cfg->prog_size == 0);
+ lfs_pair_swap(dir->pair);
+ dir->count = end - begin;
+ dir->off = commit.off;
+ dir->etag = commit.ptag;
+ // update gstate
+ lfs->gdelta = (lfs_gstate_t){0};
+ if (!relocated) {
+ lfs->gdisk = lfs->gstate;
+ }
+ }
+ break;
+
+relocate:
+ // commit was corrupted, drop caches and prepare to relocate block
+ relocated = true;
+ lfs_cache_drop(lfs, &lfs->pcache);
+ if (!tired) {
+ LFS_DEBUG("Bad block at 0x%"PRIx32, dir->pair[1]);
+ }
+
+ // can't relocate superblock, filesystem is now frozen
+ if (lfs_pair_cmp(dir->pair, (const lfs_block_t[2]){0, 1}) == 0) {
+ LFS_WARN("Superblock 0x%"PRIx32" has become unwritable",
+ dir->pair[1]);
+ return LFS_ERR_NOSPC;
+ }
+
+ // relocate half of pair
+ int err = lfs_alloc(lfs, &dir->pair[1]);
+ if (err && (err != LFS_ERR_NOSPC || !tired)) {
+ return err;
+ }
+
+ tired = false;
+ continue;
+ }
+
+ if (relocated) {
+ // update references if we relocated
+ LFS_DEBUG("Relocating {0x%"PRIx32", 0x%"PRIx32"} "
+ "-> {0x%"PRIx32", 0x%"PRIx32"}",
+ oldpair[0], oldpair[1], dir->pair[0], dir->pair[1]);
+ int err = lfs_fs_relocate(lfs, oldpair, dir->pair);
+ if (err) {
+ return err;
+ }
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_dir_commit(lfs_t *lfs, lfs_mdir_t *dir,
+ const struct lfs_mattr *attrs, int attrcount) {
+ // check for any inline files that aren't RAM backed and
+ // forcefully evict them, needed for filesystem consistency
+ for (lfs_file_t *f = (lfs_file_t*)lfs->mlist; f; f = f->next) {
+ if (dir != &f->m && lfs_pair_cmp(f->m.pair, dir->pair) == 0 &&
+ f->type == LFS_TYPE_REG && (f->flags & LFS_F_INLINE) &&
+ f->ctz.size > lfs->cfg->cache_size) {
+ int err = lfs_file_outline(lfs, f);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_file_flush(lfs, f);
+ if (err) {
+ return err;
+ }
+ }
+ }
+
+ // calculate changes to the directory
+ lfs_mdir_t olddir = *dir;
+ bool hasdelete = false;
+ for (int i = 0; i < attrcount; i++) {
+ if (lfs_tag_type3(attrs[i].tag) == LFS_TYPE_CREATE) {
+ dir->count += 1;
+ } else if (lfs_tag_type3(attrs[i].tag) == LFS_TYPE_DELETE) {
+ LFS_ASSERT(dir->count > 0);
+ dir->count -= 1;
+ hasdelete = true;
+ } else if (lfs_tag_type1(attrs[i].tag) == LFS_TYPE_TAIL) {
+ dir->tail[0] = ((lfs_block_t*)attrs[i].buffer)[0];
+ dir->tail[1] = ((lfs_block_t*)attrs[i].buffer)[1];
+ dir->split = (lfs_tag_chunk(attrs[i].tag) & 1);
+ lfs_pair_fromle32(dir->tail);
+ }
+ }
+
+ // should we actually drop the directory block?
+ if (hasdelete && dir->count == 0) {
+ lfs_mdir_t pdir;
+ int err = lfs_fs_pred(lfs, dir->pair, &pdir);
+ if (err && err != LFS_ERR_NOENT) {
+ *dir = olddir;
+ return err;
+ }
+
+ if (err != LFS_ERR_NOENT && pdir.split) {
+ err = lfs_dir_drop(lfs, &pdir, dir);
+ if (err) {
+ *dir = olddir;
+ return err;
+ }
+ }
+ }
+
+ if (dir->erased || dir->count >= 0xff) {
+ // try to commit
+ struct lfs_commit commit = {
+ .block = dir->pair[0],
+ .off = dir->off,
+ .ptag = dir->etag,
+ .crc = 0xffffffff,
+
+ .begin = dir->off,
+ .end = (lfs->cfg->metadata_max ?
+ lfs->cfg->metadata_max : lfs->cfg->block_size) - 8,
+ };
+
+ // traverse attrs that need to be written out
+ lfs_pair_tole32(dir->tail);
+ int err = lfs_dir_traverse(lfs,
+ dir, dir->off, dir->etag, attrs, attrcount,
+ 0, 0, 0, 0, 0,
+ lfs_dir_commit_commit, &(struct lfs_dir_commit_commit){
+ lfs, &commit});
+ lfs_pair_fromle32(dir->tail);
+ if (err) {
+ if (err == LFS_ERR_NOSPC || err == LFS_ERR_CORRUPT) {
+ goto compact;
+ }
+ *dir = olddir;
+ return err;
+ }
+
+ // commit any global diffs if we have any
+ lfs_gstate_t delta = {0};
+ lfs_gstate_xor(&delta, &lfs->gstate);
+ lfs_gstate_xor(&delta, &lfs->gdisk);
+ lfs_gstate_xor(&delta, &lfs->gdelta);
+ delta.tag &= ~LFS_MKTAG(0, 0, 0x3ff);
+ if (!lfs_gstate_iszero(&delta)) {
+ err = lfs_dir_getgstate(lfs, dir, &delta);
+ if (err) {
+ *dir = olddir;
+ return err;
+ }
+
+ lfs_gstate_tole32(&delta);
+ err = lfs_dir_commitattr(lfs, &commit,
+ LFS_MKTAG(LFS_TYPE_MOVESTATE, 0x3ff,
+ sizeof(delta)), &delta);
+ if (err) {
+ if (err == LFS_ERR_NOSPC || err == LFS_ERR_CORRUPT) {
+ goto compact;
+ }
+ *dir = olddir;
+ return err;
+ }
+ }
+
+ // finalize commit with the crc
+ err = lfs_dir_commitcrc(lfs, &commit);
+ if (err) {
+ if (err == LFS_ERR_NOSPC || err == LFS_ERR_CORRUPT) {
+ goto compact;
+ }
+ *dir = olddir;
+ return err;
+ }
+
+ // successful commit, update dir
+ LFS_ASSERT(commit.off % lfs->cfg->prog_size == 0);
+ dir->off = commit.off;
+ dir->etag = commit.ptag;
+ // and update gstate
+ lfs->gdisk = lfs->gstate;
+ lfs->gdelta = (lfs_gstate_t){0};
+ } else {
+compact:
+ // fall back to compaction
+ lfs_cache_drop(lfs, &lfs->pcache);
+
+ int err = lfs_dir_compact(lfs, dir, attrs, attrcount,
+ dir, 0, dir->count);
+ if (err) {
+ *dir = olddir;
+ return err;
+ }
+ }
+
+ // this complicated bit of logic is for fixing up any active
+ // metadata-pairs that we may have affected
+ //
+ // note we have to make two passes since the mdir passed to
+ // lfs_dir_commit could also be in this list, and even then
+ // we need to copy the pair so they don't get clobbered if we refetch
+ // our mdir.
+ for (struct lfs_mlist *d = lfs->mlist; d; d = d->next) {
+ if (&d->m != dir && lfs_pair_cmp(d->m.pair, olddir.pair) == 0) {
+ d->m = *dir;
+ for (int i = 0; i < attrcount; i++) {
+ if (lfs_tag_type3(attrs[i].tag) == LFS_TYPE_DELETE &&
+ d->id == lfs_tag_id(attrs[i].tag)) {
+ d->m.pair[0] = LFS_BLOCK_NULL;
+ d->m.pair[1] = LFS_BLOCK_NULL;
+ } else if (lfs_tag_type3(attrs[i].tag) == LFS_TYPE_DELETE &&
+ d->id > lfs_tag_id(attrs[i].tag)) {
+ d->id -= 1;
+ if (d->type == LFS_TYPE_DIR) {
+ ((lfs_dir_t*)d)->pos -= 1;
+ }
+ } else if (lfs_tag_type3(attrs[i].tag) == LFS_TYPE_CREATE &&
+ d->id >= lfs_tag_id(attrs[i].tag)) {
+ d->id += 1;
+ if (d->type == LFS_TYPE_DIR) {
+ ((lfs_dir_t*)d)->pos += 1;
+ }
+ }
+ }
+ }
+ }
+
+ for (struct lfs_mlist *d = lfs->mlist; d; d = d->next) {
+ if (lfs_pair_cmp(d->m.pair, olddir.pair) == 0) {
+ while (d->id >= d->m.count && d->m.split) {
+ // we split and id is on tail now
+ d->id -= d->m.count;
+ int err = lfs_dir_fetch(lfs, &d->m, d->m.tail);
+ if (err) {
+ return err;
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+#endif
+
+
+/// Top level directory operations ///
+#ifndef LFS_READONLY
+static int lfs_rawmkdir(lfs_t *lfs, const char *path) {
+ // deorphan if we haven't yet, needed at most once after poweron
+ int err = lfs_fs_forceconsistency(lfs);
+ if (err) {
+ return err;
+ }
+
+ struct lfs_mlist cwd;
+ cwd.next = lfs->mlist;
+ uint16_t id;
+ err = lfs_dir_find(lfs, &cwd.m, &path, &id);
+ if (!(err == LFS_ERR_NOENT && id != 0x3ff)) {
+ return (err < 0) ? err : LFS_ERR_EXIST;
+ }
+
+ // check that name fits
+ lfs_size_t nlen = strlen(path);
+ if (nlen > lfs->name_max) {
+ return LFS_ERR_NAMETOOLONG;
+ }
+
+ // build up new directory
+ lfs_alloc_ack(lfs);
+ lfs_mdir_t dir;
+ err = lfs_dir_alloc(lfs, &dir);
+ if (err) {
+ return err;
+ }
+
+ // find end of list
+ lfs_mdir_t pred = cwd.m;
+ while (pred.split) {
+ err = lfs_dir_fetch(lfs, &pred, pred.tail);
+ if (err) {
+ return err;
+ }
+ }
+
+ // setup dir
+ lfs_pair_tole32(pred.tail);
+ err = lfs_dir_commit(lfs, &dir, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_SOFTTAIL, 0x3ff, 8), pred.tail}));
+ lfs_pair_fromle32(pred.tail);
+ if (err) {
+ return err;
+ }
+
+ // current block end of list?
+ if (cwd.m.split) {
+ // update tails, this creates a desync
+ err = lfs_fs_preporphans(lfs, +1);
+ if (err) {
+ return err;
+ }
+
+ // it's possible our predecessor has to be relocated, and if
+ // our parent is our predecessor's predecessor, this could have
+ // caused our parent to go out of date, fortunately we can hook
+ // ourselves into littlefs to catch this
+ cwd.type = 0;
+ cwd.id = 0;
+ lfs->mlist = &cwd;
+
+ lfs_pair_tole32(dir.pair);
+ err = lfs_dir_commit(lfs, &pred, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_SOFTTAIL, 0x3ff, 8), dir.pair}));
+ lfs_pair_fromle32(dir.pair);
+ if (err) {
+ lfs->mlist = cwd.next;
+ return err;
+ }
+
+ lfs->mlist = cwd.next;
+ err = lfs_fs_preporphans(lfs, -1);
+ if (err) {
+ return err;
+ }
+ }
+
+ // now insert into our parent block
+ lfs_pair_tole32(dir.pair);
+ err = lfs_dir_commit(lfs, &cwd.m, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_CREATE, id, 0), NULL},
+ {LFS_MKTAG(LFS_TYPE_DIR, id, nlen), path},
+ {LFS_MKTAG(LFS_TYPE_DIRSTRUCT, id, 8), dir.pair},
+ {LFS_MKTAG_IF(!cwd.m.split,
+ LFS_TYPE_SOFTTAIL, 0x3ff, 8), dir.pair}));
+ lfs_pair_fromle32(dir.pair);
+ if (err) {
+ return err;
+ }
+
+ return 0;
+}
+#endif
+
+static int lfs_dir_rawopen(lfs_t *lfs, lfs_dir_t *dir, const char *path) {
+ lfs_stag_t tag = lfs_dir_find(lfs, &dir->m, &path, NULL);
+ if (tag < 0) {
+ return tag;
+ }
+
+ if (lfs_tag_type3(tag) != LFS_TYPE_DIR) {
+ return LFS_ERR_NOTDIR;
+ }
+
+ lfs_block_t pair[2];
+ if (lfs_tag_id(tag) == 0x3ff) {
+ // handle root dir separately
+ pair[0] = lfs->root[0];
+ pair[1] = lfs->root[1];
+ } else {
+ // get dir pair from parent
+ lfs_stag_t res = lfs_dir_get(lfs, &dir->m, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, lfs_tag_id(tag), 8), pair);
+ if (res < 0) {
+ return res;
+ }
+ lfs_pair_fromle32(pair);
+ }
+
+ // fetch first pair
+ int err = lfs_dir_fetch(lfs, &dir->m, pair);
+ if (err) {
+ return err;
+ }
+
+ // setup entry
+ dir->head[0] = dir->m.pair[0];
+ dir->head[1] = dir->m.pair[1];
+ dir->id = 0;
+ dir->pos = 0;
+
+ // add to list of mdirs
+ dir->type = LFS_TYPE_DIR;
+ lfs_mlist_append(lfs, (struct lfs_mlist *)dir);
+
+ return 0;
+}
+
+static int lfs_dir_rawclose(lfs_t *lfs, lfs_dir_t *dir) {
+ // remove from list of mdirs
+ lfs_mlist_remove(lfs, (struct lfs_mlist *)dir);
+
+ return 0;
+}
+
+static int lfs_dir_rawread(lfs_t *lfs, lfs_dir_t *dir, struct lfs_info *info) {
+ memset(info, 0, sizeof(*info));
+
+ // special offset for '.' and '..'
+ if (dir->pos == 0) {
+ info->type = LFS_TYPE_DIR;
+ strcpy(info->name, ".");
+ dir->pos += 1;
+ return true;
+ } else if (dir->pos == 1) {
+ info->type = LFS_TYPE_DIR;
+ strcpy(info->name, "..");
+ dir->pos += 1;
+ return true;
+ }
+
+ while (true) {
+ if (dir->id == dir->m.count) {
+ if (!dir->m.split) {
+ return false;
+ }
+
+ int err = lfs_dir_fetch(lfs, &dir->m, dir->m.tail);
+ if (err) {
+ return err;
+ }
+
+ dir->id = 0;
+ }
+
+ int err = lfs_dir_getinfo(lfs, &dir->m, dir->id, info);
+ if (err && err != LFS_ERR_NOENT) {
+ return err;
+ }
+
+ dir->id += 1;
+ if (err != LFS_ERR_NOENT) {
+ break;
+ }
+ }
+
+ dir->pos += 1;
+ return true;
+}
+
+static int lfs_dir_rawseek(lfs_t *lfs, lfs_dir_t *dir, lfs_off_t off) {
+ // simply walk from head dir
+ int err = lfs_dir_rawrewind(lfs, dir);
+ if (err) {
+ return err;
+ }
+
+ // first two for ./..
+ dir->pos = lfs_min(2, off);
+ off -= dir->pos;
+
+ // skip superblock entry
+ dir->id = (off > 0 && lfs_pair_cmp(dir->head, lfs->root) == 0);
+
+ while (off > 0) {
+ int diff = lfs_min(dir->m.count - dir->id, off);
+ dir->id += diff;
+ dir->pos += diff;
+ off -= diff;
+
+ if (dir->id == dir->m.count) {
+ if (!dir->m.split) {
+ return LFS_ERR_INVAL;
+ }
+
+ err = lfs_dir_fetch(lfs, &dir->m, dir->m.tail);
+ if (err) {
+ return err;
+ }
+
+ dir->id = 0;
+ }
+ }
+
+ return 0;
+}
+
+static lfs_soff_t lfs_dir_rawtell(lfs_t *lfs, lfs_dir_t *dir) {
+ (void)lfs;
+ return dir->pos;
+}
+
+static int lfs_dir_rawrewind(lfs_t *lfs, lfs_dir_t *dir) {
+ // reload the head dir
+ int err = lfs_dir_fetch(lfs, &dir->m, dir->head);
+ if (err) {
+ return err;
+ }
+
+ dir->id = 0;
+ dir->pos = 0;
+ return 0;
+}
+
+
+/// File index list operations ///
+static int lfs_ctz_index(lfs_t *lfs, lfs_off_t *off) {
+ lfs_off_t size = *off;
+ lfs_off_t b = lfs->cfg->block_size - 2*4;
+ lfs_off_t i = size / b;
+ if (i == 0) {
+ return 0;
+ }
+
+ i = (size - 4*(lfs_popc(i-1)+2)) / b;
+ *off = size - b*i - 4*lfs_popc(i);
+ return i;
+}
+
+static int lfs_ctz_find(lfs_t *lfs,
+ const lfs_cache_t *pcache, lfs_cache_t *rcache,
+ lfs_block_t head, lfs_size_t size,
+ lfs_size_t pos, lfs_block_t *block, lfs_off_t *off) {
+ if (size == 0) {
+ *block = LFS_BLOCK_NULL;
+ *off = 0;
+ return 0;
+ }
+
+ lfs_off_t current = lfs_ctz_index(lfs, &(lfs_off_t){size-1});
+ lfs_off_t target = lfs_ctz_index(lfs, &pos);
+
+ while (current > target) {
+ lfs_size_t skip = lfs_min(
+ lfs_npw2(current-target+1) - 1,
+ lfs_ctz(current));
+
+ int err = lfs_bd_read(lfs,
+ pcache, rcache, sizeof(head),
+ head, 4*skip, &head, sizeof(head));
+ head = lfs_fromle32(head);
+ if (err) {
+ return err;
+ }
+
+ current -= 1 << skip;
+ }
+
+ *block = head;
+ *off = pos;
+ return 0;
+}
+
+#ifndef LFS_READONLY
+static int lfs_ctz_extend(lfs_t *lfs,
+ lfs_cache_t *pcache, lfs_cache_t *rcache,
+ lfs_block_t head, lfs_size_t size,
+ lfs_block_t *block, lfs_off_t *off) {
+ while (true) {
+ // go ahead and grab a block
+ lfs_block_t nblock;
+ int err = lfs_alloc(lfs, &nblock);
+ if (err) {
+ return err;
+ }
+
+ {
+ err = lfs_bd_erase(lfs, nblock);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ if (size == 0) {
+ *block = nblock;
+ *off = 0;
+ return 0;
+ }
+
+ lfs_size_t noff = size - 1;
+ lfs_off_t index = lfs_ctz_index(lfs, &noff);
+ noff = noff + 1;
+
+ // just copy out the last block if it is incomplete
+ if (noff != lfs->cfg->block_size) {
+ for (lfs_off_t i = 0; i < noff; i++) {
+ uint8_t data;
+ err = lfs_bd_read(lfs,
+ NULL, rcache, noff-i,
+ head, i, &data, 1);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_bd_prog(lfs,
+ pcache, rcache, true,
+ nblock, i, &data, 1);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+ }
+
+ *block = nblock;
+ *off = noff;
+ return 0;
+ }
+
+ // append block
+ index += 1;
+ lfs_size_t skips = lfs_ctz(index) + 1;
+ lfs_block_t nhead = head;
+ for (lfs_off_t i = 0; i < skips; i++) {
+ nhead = lfs_tole32(nhead);
+ err = lfs_bd_prog(lfs, pcache, rcache, true,
+ nblock, 4*i, &nhead, 4);
+ nhead = lfs_fromle32(nhead);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ if (i != skips-1) {
+ err = lfs_bd_read(lfs,
+ NULL, rcache, sizeof(nhead),
+ nhead, 4*i, &nhead, sizeof(nhead));
+ nhead = lfs_fromle32(nhead);
+ if (err) {
+ return err;
+ }
+ }
+ }
+
+ *block = nblock;
+ *off = 4*skips;
+ return 0;
+ }
+
+relocate:
+ LFS_DEBUG("Bad block at 0x%"PRIx32, nblock);
+
+ // just clear cache and try a new block
+ lfs_cache_drop(lfs, pcache);
+ }
+}
+#endif
+
+static int lfs_ctz_traverse(lfs_t *lfs,
+ const lfs_cache_t *pcache, lfs_cache_t *rcache,
+ lfs_block_t head, lfs_size_t size,
+ int (*cb)(void*, lfs_block_t), void *data) {
+ if (size == 0) {
+ return 0;
+ }
+
+ lfs_off_t index = lfs_ctz_index(lfs, &(lfs_off_t){size-1});
+
+ while (true) {
+ int err = cb(data, head);
+ if (err) {
+ return err;
+ }
+
+ if (index == 0) {
+ return 0;
+ }
+
+ lfs_block_t heads[2];
+ int count = 2 - (index & 1);
+ err = lfs_bd_read(lfs,
+ pcache, rcache, count*sizeof(head),
+ head, 0, &heads, count*sizeof(head));
+ heads[0] = lfs_fromle32(heads[0]);
+ heads[1] = lfs_fromle32(heads[1]);
+ if (err) {
+ return err;
+ }
+
+ for (int i = 0; i < count-1; i++) {
+ err = cb(data, heads[i]);
+ if (err) {
+ return err;
+ }
+ }
+
+ head = heads[count-1];
+ index -= count;
+ }
+}
+
+
+/// Top level file operations ///
+static int lfs_file_rawopencfg(lfs_t *lfs, lfs_file_t *file,
+ const char *path, int flags,
+ const struct lfs_file_config *cfg) {
+#ifndef LFS_READONLY
+ // deorphan if we haven't yet, needed at most once after poweron
+ if ((flags & LFS_O_WRONLY) == LFS_O_WRONLY) {
+ int err = lfs_fs_forceconsistency(lfs);
+ if (err) {
+ return err;
+ }
+ }
+#else
+ LFS_ASSERT((flags & LFS_O_RDONLY) == LFS_O_RDONLY);
+#endif
+
+ // setup simple file details
+ int err;
+ file->cfg = cfg;
+ file->flags = flags;
+ file->pos = 0;
+ file->off = 0;
+ file->cache.buffer = NULL;
+
+ // allocate entry for file if it doesn't exist
+ lfs_stag_t tag = lfs_dir_find(lfs, &file->m, &path, &file->id);
+ if (tag < 0 && !(tag == LFS_ERR_NOENT && file->id != 0x3ff)) {
+ err = tag;
+ goto cleanup;
+ }
+
+ // get id, add to list of mdirs to catch update changes
+ file->type = LFS_TYPE_REG;
+ lfs_mlist_append(lfs, (struct lfs_mlist *)file);
+
+#ifdef LFS_READONLY
+ if (tag == LFS_ERR_NOENT) {
+ err = LFS_ERR_NOENT;
+ goto cleanup;
+#else
+ if (tag == LFS_ERR_NOENT) {
+ if (!(flags & LFS_O_CREAT)) {
+ err = LFS_ERR_NOENT;
+ goto cleanup;
+ }
+
+ // check that name fits
+ lfs_size_t nlen = strlen(path);
+ if (nlen > lfs->name_max) {
+ err = LFS_ERR_NAMETOOLONG;
+ goto cleanup;
+ }
+
+ // get next slot and create entry to remember name
+ err = lfs_dir_commit(lfs, &file->m, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_CREATE, file->id, 0), NULL},
+ {LFS_MKTAG(LFS_TYPE_REG, file->id, nlen), path},
+ {LFS_MKTAG(LFS_TYPE_INLINESTRUCT, file->id, 0), NULL}));
+ if (err) {
+ err = LFS_ERR_NAMETOOLONG;
+ goto cleanup;
+ }
+
+ tag = LFS_MKTAG(LFS_TYPE_INLINESTRUCT, 0, 0);
+ } else if (flags & LFS_O_EXCL) {
+ err = LFS_ERR_EXIST;
+ goto cleanup;
+#endif
+ } else if (lfs_tag_type3(tag) != LFS_TYPE_REG) {
+ err = LFS_ERR_ISDIR;
+ goto cleanup;
+#ifndef LFS_READONLY
+ } else if (flags & LFS_O_TRUNC) {
+ // truncate if requested
+ tag = LFS_MKTAG(LFS_TYPE_INLINESTRUCT, file->id, 0);
+ file->flags |= LFS_F_DIRTY;
+#endif
+ } else {
+ // try to load what's on disk, if it's inlined we'll fix it later
+ tag = lfs_dir_get(lfs, &file->m, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, file->id, 8), &file->ctz);
+ if (tag < 0) {
+ err = tag;
+ goto cleanup;
+ }
+ lfs_ctz_fromle32(&file->ctz);
+ }
+
+ // fetch attrs
+ for (unsigned i = 0; i < file->cfg->attr_count; i++) {
+ // if opened for read / read-write operations
+ if ((file->flags & LFS_O_RDONLY) == LFS_O_RDONLY) {
+ lfs_stag_t res = lfs_dir_get(lfs, &file->m,
+ LFS_MKTAG(0x7ff, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_USERATTR + file->cfg->attrs[i].type,
+ file->id, file->cfg->attrs[i].size),
+ file->cfg->attrs[i].buffer);
+ if (res < 0 && res != LFS_ERR_NOENT) {
+ err = res;
+ goto cleanup;
+ }
+ }
+
+#ifndef LFS_READONLY
+ // if opened for write / read-write operations
+ if ((file->flags & LFS_O_WRONLY) == LFS_O_WRONLY) {
+ if (file->cfg->attrs[i].size > lfs->attr_max) {
+ err = LFS_ERR_NOSPC;
+ goto cleanup;
+ }
+
+ file->flags |= LFS_F_DIRTY;
+ }
+#endif
+ }
+
+ // allocate buffer if needed
+ if (file->cfg->buffer) {
+ file->cache.buffer = file->cfg->buffer;
+ } else {
+ file->cache.buffer = lfs_malloc(lfs->cfg->cache_size);
+ if (!file->cache.buffer) {
+ err = LFS_ERR_NOMEM;
+ goto cleanup;
+ }
+ }
+
+ // zero to avoid information leak
+ lfs_cache_zero(lfs, &file->cache);
+
+ if (lfs_tag_type3(tag) == LFS_TYPE_INLINESTRUCT) {
+ // load inline files
+ file->ctz.head = LFS_BLOCK_INLINE;
+ file->ctz.size = lfs_tag_size(tag);
+ file->flags |= LFS_F_INLINE;
+ file->cache.block = file->ctz.head;
+ file->cache.off = 0;
+ file->cache.size = lfs->cfg->cache_size;
+
+ // don't always read (may be new/trunc file)
+ if (file->ctz.size > 0) {
+ lfs_stag_t res = lfs_dir_get(lfs, &file->m,
+ LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, file->id,
+ lfs_min(file->cache.size, 0x3fe)),
+ file->cache.buffer);
+ if (res < 0) {
+ err = res;
+ goto cleanup;
+ }
+ }
+ }
+
+ return 0;
+
+cleanup:
+ // clean up lingering resources
+#ifndef LFS_READONLY
+ file->flags |= LFS_F_ERRED;
+#endif
+ lfs_file_rawclose(lfs, file);
+ return err;
+}
+
+static int lfs_file_rawopen(lfs_t *lfs, lfs_file_t *file,
+ const char *path, int flags) {
+ static const struct lfs_file_config defaults = {0};
+ int err = lfs_file_rawopencfg(lfs, file, path, flags, &defaults);
+ return err;
+}
+
+static int lfs_file_rawclose(lfs_t *lfs, lfs_file_t *file) {
+#ifndef LFS_READONLY
+ int err = lfs_file_rawsync(lfs, file);
+#else
+ int err = 0;
+#endif
+
+ // remove from list of mdirs
+ lfs_mlist_remove(lfs, (struct lfs_mlist*)file);
+
+ // clean up memory
+ if (!file->cfg->buffer) {
+ lfs_free(file->cache.buffer);
+ }
+
+ return err;
+}
+
+
+#ifndef LFS_READONLY
+static int lfs_file_relocate(lfs_t *lfs, lfs_file_t *file) {
+ while (true) {
+ // just relocate what exists into new block
+ lfs_block_t nblock;
+ int err = lfs_alloc(lfs, &nblock);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_bd_erase(lfs, nblock);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ // either read from dirty cache or disk
+ for (lfs_off_t i = 0; i < file->off; i++) {
+ uint8_t data;
+ if (file->flags & LFS_F_INLINE) {
+ err = lfs_dir_getread(lfs, &file->m,
+ // note we evict inline files before they can be dirty
+ NULL, &file->cache, file->off-i,
+ LFS_MKTAG(0xfff, 0x1ff, 0),
+ LFS_MKTAG(LFS_TYPE_INLINESTRUCT, file->id, 0),
+ i, &data, 1);
+ if (err) {
+ return err;
+ }
+ } else {
+ err = lfs_bd_read(lfs,
+ &file->cache, &lfs->rcache, file->off-i,
+ file->block, i, &data, 1);
+ if (err) {
+ return err;
+ }
+ }
+
+ err = lfs_bd_prog(lfs,
+ &lfs->pcache, &lfs->rcache, true,
+ nblock, i, &data, 1);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+ }
+
+ // copy over new state of file
+ memcpy(file->cache.buffer, lfs->pcache.buffer, lfs->cfg->cache_size);
+ file->cache.block = lfs->pcache.block;
+ file->cache.off = lfs->pcache.off;
+ file->cache.size = lfs->pcache.size;
+ lfs_cache_zero(lfs, &lfs->pcache);
+
+ file->block = nblock;
+ file->flags |= LFS_F_WRITING;
+ return 0;
+
+relocate:
+ LFS_DEBUG("Bad block at 0x%"PRIx32, nblock);
+
+ // just clear cache and try a new block
+ lfs_cache_drop(lfs, &lfs->pcache);
+ }
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_file_outline(lfs_t *lfs, lfs_file_t *file) {
+ file->off = file->pos;
+ lfs_alloc_ack(lfs);
+ int err = lfs_file_relocate(lfs, file);
+ if (err) {
+ return err;
+ }
+
+ file->flags &= ~LFS_F_INLINE;
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_file_flush(lfs_t *lfs, lfs_file_t *file) {
+ if (file->flags & LFS_F_READING) {
+ if (!(file->flags & LFS_F_INLINE)) {
+ lfs_cache_drop(lfs, &file->cache);
+ }
+ file->flags &= ~LFS_F_READING;
+ }
+
+ if (file->flags & LFS_F_WRITING) {
+ lfs_off_t pos = file->pos;
+
+ if (!(file->flags & LFS_F_INLINE)) {
+ // copy over anything after current branch
+ lfs_file_t orig = {
+ .ctz.head = file->ctz.head,
+ .ctz.size = file->ctz.size,
+ .flags = LFS_O_RDONLY,
+ .pos = file->pos,
+ .cache = lfs->rcache,
+ };
+ lfs_cache_drop(lfs, &lfs->rcache);
+
+ while (file->pos < file->ctz.size) {
+ // copy over a byte at a time, leave it up to caching
+ // to make this efficient
+ uint8_t data;
+ lfs_ssize_t res = lfs_file_rawread(lfs, &orig, &data, 1);
+ if (res < 0) {
+ return res;
+ }
+
+ res = lfs_file_rawwrite(lfs, file, &data, 1);
+ if (res < 0) {
+ return res;
+ }
+
+ // keep our reference to the rcache in sync
+ if (lfs->rcache.block != LFS_BLOCK_NULL) {
+ lfs_cache_drop(lfs, &orig.cache);
+ lfs_cache_drop(lfs, &lfs->rcache);
+ }
+ }
+
+ // write out what we have
+ while (true) {
+ int err = lfs_bd_flush(lfs, &file->cache, &lfs->rcache, true);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ return err;
+ }
+
+ break;
+
+relocate:
+ LFS_DEBUG("Bad block at 0x%"PRIx32, file->block);
+ err = lfs_file_relocate(lfs, file);
+ if (err) {
+ return err;
+ }
+ }
+ } else {
+ file->pos = lfs_max(file->pos, file->ctz.size);
+ }
+
+ // actual file updates
+ file->ctz.head = file->block;
+ file->ctz.size = file->pos;
+ file->flags &= ~LFS_F_WRITING;
+ file->flags |= LFS_F_DIRTY;
+
+ file->pos = pos;
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_file_rawsync(lfs_t *lfs, lfs_file_t *file) {
+ if (file->flags & LFS_F_ERRED) {
+ // it's not safe to do anything if our file errored
+ return 0;
+ }
+
+ int err = lfs_file_flush(lfs, file);
+ if (err) {
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+
+
+ if ((file->flags & LFS_F_DIRTY) &&
+ !lfs_pair_isnull(file->m.pair)) {
+ // update dir entry
+ uint16_t type;
+ const void *buffer;
+ lfs_size_t size;
+ struct lfs_ctz ctz;
+ if (file->flags & LFS_F_INLINE) {
+ // inline the whole file
+ type = LFS_TYPE_INLINESTRUCT;
+ buffer = file->cache.buffer;
+ size = file->ctz.size;
+ } else {
+ // update the ctz reference
+ type = LFS_TYPE_CTZSTRUCT;
+ // copy ctz so alloc will work during a relocate
+ ctz = file->ctz;
+ lfs_ctz_tole32(&ctz);
+ buffer = &ctz;
+ size = sizeof(ctz);
+ }
+
+ // commit file data and attributes
+ err = lfs_dir_commit(lfs, &file->m, LFS_MKATTRS(
+ {LFS_MKTAG(type, file->id, size), buffer},
+ {LFS_MKTAG(LFS_FROM_USERATTRS, file->id,
+ file->cfg->attr_count), file->cfg->attrs}));
+ if (err) {
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+
+ file->flags &= ~LFS_F_DIRTY;
+ }
+
+ return 0;
+}
+#endif
+
+static lfs_ssize_t lfs_file_rawread(lfs_t *lfs, lfs_file_t *file,
+ void *buffer, lfs_size_t size) {
+ LFS_ASSERT((file->flags & LFS_O_RDONLY) == LFS_O_RDONLY);
+
+ uint8_t *data = buffer;
+ lfs_size_t nsize = size;
+
+#ifndef LFS_READONLY
+ if (file->flags & LFS_F_WRITING) {
+ // flush out any writes
+ int err = lfs_file_flush(lfs, file);
+ if (err) {
+ return err;
+ }
+ }
+#endif
+
+ if (file->pos >= file->ctz.size) {
+ // eof if past end
+ return 0;
+ }
+
+ size = lfs_min(size, file->ctz.size - file->pos);
+ nsize = size;
+
+ while (nsize > 0) {
+ // check if we need a new block
+ if (!(file->flags & LFS_F_READING) ||
+ file->off == lfs->cfg->block_size) {
+ if (!(file->flags & LFS_F_INLINE)) {
+ int err = lfs_ctz_find(lfs, NULL, &file->cache,
+ file->ctz.head, file->ctz.size,
+ file->pos, &file->block, &file->off);
+ if (err) {
+ return err;
+ }
+ } else {
+ file->block = LFS_BLOCK_INLINE;
+ file->off = file->pos;
+ }
+
+ file->flags |= LFS_F_READING;
+ }
+
+ // read as much as we can in current block
+ lfs_size_t diff = lfs_min(nsize, lfs->cfg->block_size - file->off);
+ if (file->flags & LFS_F_INLINE) {
+ int err = lfs_dir_getread(lfs, &file->m,
+ NULL, &file->cache, lfs->cfg->block_size,
+ LFS_MKTAG(0xfff, 0x1ff, 0),
+ LFS_MKTAG(LFS_TYPE_INLINESTRUCT, file->id, 0),
+ file->off, data, diff);
+ if (err) {
+ return err;
+ }
+ } else {
+ int err = lfs_bd_read(lfs,
+ NULL, &file->cache, lfs->cfg->block_size,
+ file->block, file->off, data, diff);
+ if (err) {
+ return err;
+ }
+ }
+
+ file->pos += diff;
+ file->off += diff;
+ data += diff;
+ nsize -= diff;
+ }
+
+ return size;
+}
+
+#ifndef LFS_READONLY
+static lfs_ssize_t lfs_file_rawwrite(lfs_t *lfs, lfs_file_t *file,
+ const void *buffer, lfs_size_t size) {
+ LFS_ASSERT((file->flags & LFS_O_WRONLY) == LFS_O_WRONLY);
+
+ const uint8_t *data = buffer;
+ lfs_size_t nsize = size;
+
+ if (file->flags & LFS_F_READING) {
+ // drop any reads
+ int err = lfs_file_flush(lfs, file);
+ if (err) {
+ return err;
+ }
+ }
+
+ if ((file->flags & LFS_O_APPEND) && file->pos < file->ctz.size) {
+ file->pos = file->ctz.size;
+ }
+
+ if (file->pos + size > lfs->file_max) {
+ // Larger than file limit?
+ return LFS_ERR_FBIG;
+ }
+
+ if (!(file->flags & LFS_F_WRITING) && file->pos > file->ctz.size) {
+ // fill with zeros
+ lfs_off_t pos = file->pos;
+ file->pos = file->ctz.size;
+
+ while (file->pos < pos) {
+ lfs_ssize_t res = lfs_file_rawwrite(lfs, file, &(uint8_t){0}, 1);
+ if (res < 0) {
+ return res;
+ }
+ }
+ }
+
+ if ((file->flags & LFS_F_INLINE) &&
+ lfs_max(file->pos+nsize, file->ctz.size) >
+ lfs_min(0x3fe, lfs_min(
+ lfs->cfg->cache_size,
+ (lfs->cfg->metadata_max ?
+ lfs->cfg->metadata_max : lfs->cfg->block_size) / 8))) {
+ // inline file doesn't fit anymore
+ int err = lfs_file_outline(lfs, file);
+ if (err) {
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+ }
+
+ while (nsize > 0) {
+ // check if we need a new block
+ if (!(file->flags & LFS_F_WRITING) ||
+ file->off == lfs->cfg->block_size) {
+ if (!(file->flags & LFS_F_INLINE)) {
+ if (!(file->flags & LFS_F_WRITING) && file->pos > 0) {
+ // find out which block we're extending from
+ int err = lfs_ctz_find(lfs, NULL, &file->cache,
+ file->ctz.head, file->ctz.size,
+ file->pos-1, &file->block, &file->off);
+ if (err) {
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+
+ // mark cache as dirty since we may have read data into it
+ lfs_cache_zero(lfs, &file->cache);
+ }
+
+ // extend file with new blocks
+ lfs_alloc_ack(lfs);
+ int err = lfs_ctz_extend(lfs, &file->cache, &lfs->rcache,
+ file->block, file->pos,
+ &file->block, &file->off);
+ if (err) {
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+ } else {
+ file->block = LFS_BLOCK_INLINE;
+ file->off = file->pos;
+ }
+
+ file->flags |= LFS_F_WRITING;
+ }
+
+ // program as much as we can in current block
+ lfs_size_t diff = lfs_min(nsize, lfs->cfg->block_size - file->off);
+ while (true) {
+ int err = lfs_bd_prog(lfs, &file->cache, &lfs->rcache, true,
+ file->block, file->off, data, diff);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ goto relocate;
+ }
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+
+ break;
+relocate:
+ err = lfs_file_relocate(lfs, file);
+ if (err) {
+ file->flags |= LFS_F_ERRED;
+ return err;
+ }
+ }
+
+ file->pos += diff;
+ file->off += diff;
+ data += diff;
+ nsize -= diff;
+
+ lfs_alloc_ack(lfs);
+ }
+
+ file->flags &= ~LFS_F_ERRED;
+ return size;
+}
+#endif
+
+static lfs_soff_t lfs_file_rawseek(lfs_t *lfs, lfs_file_t *file,
+ lfs_soff_t off, int whence) {
+ // find new pos
+ lfs_off_t npos = file->pos;
+ if (whence == LFS_SEEK_SET) {
+ npos = off;
+ } else if (whence == LFS_SEEK_CUR) {
+ npos = file->pos + off;
+ } else if (whence == LFS_SEEK_END) {
+ npos = lfs_file_rawsize(lfs, file) + off;
+ }
+
+ if (npos > lfs->file_max) {
+ // file position out of range
+ return LFS_ERR_INVAL;
+ }
+
+ if (file->pos == npos) {
+ // noop - position has not changed
+ return npos;
+ }
+
+#ifndef LFS_READONLY
+ // write out everything beforehand, may be noop if rdonly
+ int err = lfs_file_flush(lfs, file);
+ if (err) {
+ return err;
+ }
+#endif
+
+ // update pos
+ file->pos = npos;
+ return npos;
+}
+
+#ifndef LFS_READONLY
+static int lfs_file_rawtruncate(lfs_t *lfs, lfs_file_t *file, lfs_off_t size) {
+ LFS_ASSERT((file->flags & LFS_O_WRONLY) == LFS_O_WRONLY);
+
+ if (size > LFS_FILE_MAX) {
+ return LFS_ERR_INVAL;
+ }
+
+ lfs_off_t pos = file->pos;
+ lfs_off_t oldsize = lfs_file_rawsize(lfs, file);
+ if (size < oldsize) {
+ // need to flush since directly changing metadata
+ int err = lfs_file_flush(lfs, file);
+ if (err) {
+ return err;
+ }
+
+ // lookup new head in ctz skip list
+ err = lfs_ctz_find(lfs, NULL, &file->cache,
+ file->ctz.head, file->ctz.size,
+ size, &file->block, &file->off);
+ if (err) {
+ return err;
+ }
+
+ // need to set pos/block/off consistently so seeking back to
+ // the old position does not get confused
+ file->pos = size;
+ file->ctz.head = file->block;
+ file->ctz.size = size;
+ file->flags |= LFS_F_DIRTY | LFS_F_READING;
+ } else if (size > oldsize) {
+ // flush+seek if not already at end
+ lfs_soff_t res = lfs_file_rawseek(lfs, file, 0, LFS_SEEK_END);
+ if (res < 0) {
+ return (int)res;
+ }
+
+ // fill with zeros
+ while (file->pos < size) {
+ res = lfs_file_rawwrite(lfs, file, &(uint8_t){0}, 1);
+ if (res < 0) {
+ return (int)res;
+ }
+ }
+ }
+
+ // restore pos
+ lfs_soff_t res = lfs_file_rawseek(lfs, file, pos, LFS_SEEK_SET);
+ if (res < 0) {
+ return (int)res;
+ }
+
+ return 0;
+}
+#endif
+
+static lfs_soff_t lfs_file_rawtell(lfs_t *lfs, lfs_file_t *file) {
+ (void)lfs;
+ return file->pos;
+}
+
+static int lfs_file_rawrewind(lfs_t *lfs, lfs_file_t *file) {
+ lfs_soff_t res = lfs_file_rawseek(lfs, file, 0, LFS_SEEK_SET);
+ if (res < 0) {
+ return (int)res;
+ }
+
+ return 0;
+}
+
+static lfs_soff_t lfs_file_rawsize(lfs_t *lfs, lfs_file_t *file) {
+ (void)lfs;
+
+#ifndef LFS_READONLY
+ if (file->flags & LFS_F_WRITING) {
+ return lfs_max(file->pos, file->ctz.size);
+ }
+#endif
+
+ return file->ctz.size;
+}
+
+
+/// General fs operations ///
+static int lfs_rawstat(lfs_t *lfs, const char *path, struct lfs_info *info) {
+ lfs_mdir_t cwd;
+ lfs_stag_t tag = lfs_dir_find(lfs, &cwd, &path, NULL);
+ if (tag < 0) {
+ return (int)tag;
+ }
+
+ return lfs_dir_getinfo(lfs, &cwd, lfs_tag_id(tag), info);
+}
+
+#ifndef LFS_READONLY
+static int lfs_rawremove(lfs_t *lfs, const char *path) {
+ // deorphan if we haven't yet, needed at most once after poweron
+ int err = lfs_fs_forceconsistency(lfs);
+ if (err) {
+ return err;
+ }
+
+ lfs_mdir_t cwd;
+ lfs_stag_t tag = lfs_dir_find(lfs, &cwd, &path, NULL);
+ if (tag < 0 || lfs_tag_id(tag) == 0x3ff) {
+ return (tag < 0) ? (int)tag : LFS_ERR_INVAL;
+ }
+
+ struct lfs_mlist dir;
+ dir.next = lfs->mlist;
+ if (lfs_tag_type3(tag) == LFS_TYPE_DIR) {
+ // must be empty before removal
+ lfs_block_t pair[2];
+ lfs_stag_t res = lfs_dir_get(lfs, &cwd, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, lfs_tag_id(tag), 8), pair);
+ if (res < 0) {
+ return (int)res;
+ }
+ lfs_pair_fromle32(pair);
+
+ err = lfs_dir_fetch(lfs, &dir.m, pair);
+ if (err) {
+ return err;
+ }
+
+ if (dir.m.count > 0 || dir.m.split) {
+ return LFS_ERR_NOTEMPTY;
+ }
+
+ // mark fs as orphaned
+ err = lfs_fs_preporphans(lfs, +1);
+ if (err) {
+ return err;
+ }
+
+ // I know it's crazy but yes, dir can be changed by our parent's
+ // commit (if predecessor is child)
+ dir.type = 0;
+ dir.id = 0;
+ lfs->mlist = &dir;
+ }
+
+ // delete the entry
+ err = lfs_dir_commit(lfs, &cwd, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_DELETE, lfs_tag_id(tag), 0), NULL}));
+ if (err) {
+ lfs->mlist = dir.next;
+ return err;
+ }
+
+ lfs->mlist = dir.next;
+ if (lfs_tag_type3(tag) == LFS_TYPE_DIR) {
+ // fix orphan
+ err = lfs_fs_preporphans(lfs, -1);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_fs_pred(lfs, dir.m.pair, &cwd);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_dir_drop(lfs, &cwd, &dir.m);
+ if (err) {
+ return err;
+ }
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_rawrename(lfs_t *lfs, const char *oldpath, const char *newpath) {
+ // deorphan if we haven't yet, needed at most once after poweron
+ int err = lfs_fs_forceconsistency(lfs);
+ if (err) {
+ return err;
+ }
+
+ // find old entry
+ lfs_mdir_t oldcwd;
+ lfs_stag_t oldtag = lfs_dir_find(lfs, &oldcwd, &oldpath, NULL);
+ if (oldtag < 0 || lfs_tag_id(oldtag) == 0x3ff) {
+ return (oldtag < 0) ? (int)oldtag : LFS_ERR_INVAL;
+ }
+
+ // find new entry
+ lfs_mdir_t newcwd;
+ uint16_t newid;
+ lfs_stag_t prevtag = lfs_dir_find(lfs, &newcwd, &newpath, &newid);
+ if ((prevtag < 0 || lfs_tag_id(prevtag) == 0x3ff) &&
+ !(prevtag == LFS_ERR_NOENT && newid != 0x3ff)) {
+ return (prevtag < 0) ? (int)prevtag : LFS_ERR_INVAL;
+ }
+
+ // if we're in the same pair there's a few special cases...
+ bool samepair = (lfs_pair_cmp(oldcwd.pair, newcwd.pair) == 0);
+ uint16_t newoldid = lfs_tag_id(oldtag);
+
+ struct lfs_mlist prevdir;
+ prevdir.next = lfs->mlist;
+ if (prevtag == LFS_ERR_NOENT) {
+ // check that name fits
+ lfs_size_t nlen = strlen(newpath);
+ if (nlen > lfs->name_max) {
+ return LFS_ERR_NAMETOOLONG;
+ }
+
+ // there is a small chance we are being renamed in the same
+ // directory/ to an id less than our old id, the global update
+ // to handle this is a bit messy
+ if (samepair && newid <= newoldid) {
+ newoldid += 1;
+ }
+ } else if (lfs_tag_type3(prevtag) != lfs_tag_type3(oldtag)) {
+ return LFS_ERR_ISDIR;
+ } else if (samepair && newid == newoldid) {
+ // we're renaming to ourselves??
+ return 0;
+ } else if (lfs_tag_type3(prevtag) == LFS_TYPE_DIR) {
+ // must be empty before removal
+ lfs_block_t prevpair[2];
+ lfs_stag_t res = lfs_dir_get(lfs, &newcwd, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, newid, 8), prevpair);
+ if (res < 0) {
+ return (int)res;
+ }
+ lfs_pair_fromle32(prevpair);
+
+ // must be empty before removal
+ err = lfs_dir_fetch(lfs, &prevdir.m, prevpair);
+ if (err) {
+ return err;
+ }
+
+ if (prevdir.m.count > 0 || prevdir.m.split) {
+ return LFS_ERR_NOTEMPTY;
+ }
+
+ // mark fs as orphaned
+ err = lfs_fs_preporphans(lfs, +1);
+ if (err) {
+ return err;
+ }
+
+ // I know it's crazy but yes, dir can be changed by our parent's
+ // commit (if predecessor is child)
+ prevdir.type = 0;
+ prevdir.id = 0;
+ lfs->mlist = &prevdir;
+ }
+
+ if (!samepair) {
+ lfs_fs_prepmove(lfs, newoldid, oldcwd.pair);
+ }
+
+ // move over all attributes
+ err = lfs_dir_commit(lfs, &newcwd, LFS_MKATTRS(
+ {LFS_MKTAG_IF(prevtag != LFS_ERR_NOENT,
+ LFS_TYPE_DELETE, newid, 0), NULL},
+ {LFS_MKTAG(LFS_TYPE_CREATE, newid, 0), NULL},
+ {LFS_MKTAG(lfs_tag_type3(oldtag), newid, strlen(newpath)), newpath},
+ {LFS_MKTAG(LFS_FROM_MOVE, newid, lfs_tag_id(oldtag)), &oldcwd},
+ {LFS_MKTAG_IF(samepair,
+ LFS_TYPE_DELETE, newoldid, 0), NULL}));
+ if (err) {
+ lfs->mlist = prevdir.next;
+ return err;
+ }
+
+ // let commit clean up after move (if we're different! otherwise move
+ // logic already fixed it for us)
+ if (!samepair && lfs_gstate_hasmove(&lfs->gstate)) {
+ // prep gstate and delete move id
+ lfs_fs_prepmove(lfs, 0x3ff, NULL);
+ err = lfs_dir_commit(lfs, &oldcwd, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_DELETE, lfs_tag_id(oldtag), 0), NULL}));
+ if (err) {
+ lfs->mlist = prevdir.next;
+ return err;
+ }
+ }
+
+ lfs->mlist = prevdir.next;
+ if (prevtag != LFS_ERR_NOENT && lfs_tag_type3(prevtag) == LFS_TYPE_DIR) {
+ // fix orphan
+ err = lfs_fs_preporphans(lfs, -1);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_fs_pred(lfs, prevdir.m.pair, &newcwd);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_dir_drop(lfs, &newcwd, &prevdir.m);
+ if (err) {
+ return err;
+ }
+ }
+
+ return 0;
+}
+#endif
+
+static lfs_ssize_t lfs_rawgetattr(lfs_t *lfs, const char *path,
+ uint8_t type, void *buffer, lfs_size_t size) {
+ lfs_mdir_t cwd;
+ lfs_stag_t tag = lfs_dir_find(lfs, &cwd, &path, NULL);
+ if (tag < 0) {
+ return tag;
+ }
+
+ uint16_t id = lfs_tag_id(tag);
+ if (id == 0x3ff) {
+ // special case for root
+ id = 0;
+ int err = lfs_dir_fetch(lfs, &cwd, lfs->root);
+ if (err) {
+ return err;
+ }
+ }
+
+ tag = lfs_dir_get(lfs, &cwd, LFS_MKTAG(0x7ff, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_USERATTR + type,
+ id, lfs_min(size, lfs->attr_max)),
+ buffer);
+ if (tag < 0) {
+ if (tag == LFS_ERR_NOENT) {
+ return LFS_ERR_NOATTR;
+ }
+
+ return tag;
+ }
+
+ return lfs_tag_size(tag);
+}
+
+#ifndef LFS_READONLY
+static int lfs_commitattr(lfs_t *lfs, const char *path,
+ uint8_t type, const void *buffer, lfs_size_t size) {
+ lfs_mdir_t cwd;
+ lfs_stag_t tag = lfs_dir_find(lfs, &cwd, &path, NULL);
+ if (tag < 0) {
+ return tag;
+ }
+
+ uint16_t id = lfs_tag_id(tag);
+ if (id == 0x3ff) {
+ // special case for root
+ id = 0;
+ int err = lfs_dir_fetch(lfs, &cwd, lfs->root);
+ if (err) {
+ return err;
+ }
+ }
+
+ return lfs_dir_commit(lfs, &cwd, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_USERATTR + type, id, size), buffer}));
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_rawsetattr(lfs_t *lfs, const char *path,
+ uint8_t type, const void *buffer, lfs_size_t size) {
+ if (size > lfs->attr_max) {
+ return LFS_ERR_NOSPC;
+ }
+
+ return lfs_commitattr(lfs, path, type, buffer, size);
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_rawremoveattr(lfs_t *lfs, const char *path, uint8_t type) {
+ return lfs_commitattr(lfs, path, type, NULL, 0x3ff);
+}
+#endif
+
+
+/// Filesystem operations ///
+static int lfs_init(lfs_t *lfs, const struct lfs_config *cfg) {
+ lfs->cfg = cfg;
+ int err = 0;
+
+ // validate that the lfs-cfg sizes were initiated properly before
+ // performing any arithmetic logics with them
+ LFS_ASSERT(lfs->cfg->read_size != 0);
+ LFS_ASSERT(lfs->cfg->prog_size != 0);
+ LFS_ASSERT(lfs->cfg->cache_size != 0);
+
+ // check that block size is a multiple of cache size is a multiple
+ // of prog and read sizes
+ LFS_ASSERT(lfs->cfg->cache_size % lfs->cfg->read_size == 0);
+ LFS_ASSERT(lfs->cfg->cache_size % lfs->cfg->prog_size == 0);
+ LFS_ASSERT(lfs->cfg->block_size % lfs->cfg->cache_size == 0);
+
+ // check that the block size is large enough to fit ctz pointers
+ LFS_ASSERT(4*lfs_npw2(0xffffffff / (lfs->cfg->block_size-2*4))
+ <= lfs->cfg->block_size);
+
+ // block_cycles = 0 is no longer supported.
+ //
+ // block_cycles is the number of erase cycles before littlefs evicts
+ // metadata logs as a part of wear leveling. Suggested values are in the
+ // range of 100-1000, or set block_cycles to -1 to disable block-level
+ // wear-leveling.
+ LFS_ASSERT(lfs->cfg->block_cycles != 0);
+
+
+ // setup read cache
+ if (lfs->cfg->read_buffer) {
+ lfs->rcache.buffer = lfs->cfg->read_buffer;
+ } else {
+ lfs->rcache.buffer = lfs_malloc(lfs->cfg->cache_size);
+ if (!lfs->rcache.buffer) {
+ err = LFS_ERR_NOMEM;
+ goto cleanup;
+ }
+ }
+
+ // setup program cache
+ if (lfs->cfg->prog_buffer) {
+ lfs->pcache.buffer = lfs->cfg->prog_buffer;
+ } else {
+ lfs->pcache.buffer = lfs_malloc(lfs->cfg->cache_size);
+ if (!lfs->pcache.buffer) {
+ err = LFS_ERR_NOMEM;
+ goto cleanup;
+ }
+ }
+
+ // zero to avoid information leaks
+ lfs_cache_zero(lfs, &lfs->rcache);
+ lfs_cache_zero(lfs, &lfs->pcache);
+
+ // setup lookahead, must be multiple of 64-bits, 32-bit aligned
+ LFS_ASSERT(lfs->cfg->lookahead_size > 0);
+ LFS_ASSERT(lfs->cfg->lookahead_size % 8 == 0 &&
+ (uintptr_t)lfs->cfg->lookahead_buffer % 4 == 0);
+ if (lfs->cfg->lookahead_buffer) {
+ lfs->free.buffer = lfs->cfg->lookahead_buffer;
+ } else {
+ lfs->free.buffer = lfs_malloc(lfs->cfg->lookahead_size);
+ if (!lfs->free.buffer) {
+ err = LFS_ERR_NOMEM;
+ goto cleanup;
+ }
+ }
+
+ // check that the size limits are sane
+ LFS_ASSERT(lfs->cfg->name_max <= LFS_NAME_MAX);
+ lfs->name_max = lfs->cfg->name_max;
+ if (!lfs->name_max) {
+ lfs->name_max = LFS_NAME_MAX;
+ }
+
+ LFS_ASSERT(lfs->cfg->file_max <= LFS_FILE_MAX);
+ lfs->file_max = lfs->cfg->file_max;
+ if (!lfs->file_max) {
+ lfs->file_max = LFS_FILE_MAX;
+ }
+
+ LFS_ASSERT(lfs->cfg->attr_max <= LFS_ATTR_MAX);
+ lfs->attr_max = lfs->cfg->attr_max;
+ if (!lfs->attr_max) {
+ lfs->attr_max = LFS_ATTR_MAX;
+ }
+
+ LFS_ASSERT(lfs->cfg->metadata_max <= lfs->cfg->block_size);
+
+ // setup default state
+ lfs->root[0] = LFS_BLOCK_NULL;
+ lfs->root[1] = LFS_BLOCK_NULL;
+ lfs->mlist = NULL;
+ lfs->seed = 0;
+ lfs->gdisk = (lfs_gstate_t){0};
+ lfs->gstate = (lfs_gstate_t){0};
+ lfs->gdelta = (lfs_gstate_t){0};
+#ifdef LFS_MIGRATE
+ lfs->lfs1 = NULL;
+#endif
+
+ return 0;
+
+cleanup:
+ lfs_deinit(lfs);
+ return err;
+}
+
+static int lfs_deinit(lfs_t *lfs) {
+ // free allocated memory
+ if (!lfs->cfg->read_buffer) {
+ lfs_free(lfs->rcache.buffer);
+ }
+
+ if (!lfs->cfg->prog_buffer) {
+ lfs_free(lfs->pcache.buffer);
+ }
+
+ if (!lfs->cfg->lookahead_buffer) {
+ lfs_free(lfs->free.buffer);
+ }
+
+ return 0;
+}
+
+#ifndef LFS_READONLY
+static int lfs_rawformat(lfs_t *lfs, const struct lfs_config *cfg) {
+ int err = 0;
+ {
+ err = lfs_init(lfs, cfg);
+ if (err) {
+ return err;
+ }
+
+ // create free lookahead
+ memset(lfs->free.buffer, 0, lfs->cfg->lookahead_size);
+ lfs->free.off = 0;
+ lfs->free.size = lfs_min(8*lfs->cfg->lookahead_size,
+ lfs->cfg->block_count);
+ lfs->free.i = 0;
+ lfs_alloc_ack(lfs);
+
+ // create root dir
+ lfs_mdir_t root;
+ err = lfs_dir_alloc(lfs, &root);
+ if (err) {
+ goto cleanup;
+ }
+
+ // write one superblock
+ lfs_superblock_t superblock = {
+ .version = LFS_DISK_VERSION,
+ .block_size = lfs->cfg->block_size,
+ .block_count = lfs->cfg->block_count,
+ .name_max = lfs->name_max,
+ .file_max = lfs->file_max,
+ .attr_max = lfs->attr_max,
+ };
+
+ lfs_superblock_tole32(&superblock);
+ err = lfs_dir_commit(lfs, &root, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_CREATE, 0, 0), NULL},
+ {LFS_MKTAG(LFS_TYPE_SUPERBLOCK, 0, 8), "littlefs"},
+ {LFS_MKTAG(LFS_TYPE_INLINESTRUCT, 0, sizeof(superblock)),
+ &superblock}));
+ if (err) {
+ goto cleanup;
+ }
+
+ // force compaction to prevent accidentally mounting any
+ // older version of littlefs that may live on disk
+ root.erased = false;
+ err = lfs_dir_commit(lfs, &root, NULL, 0);
+ if (err) {
+ goto cleanup;
+ }
+
+ // sanity check that fetch works
+ err = lfs_dir_fetch(lfs, &root, (const lfs_block_t[2]){0, 1});
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+cleanup:
+ lfs_deinit(lfs);
+ return err;
+
+}
+#endif
+
+static int lfs_rawmount(lfs_t *lfs, const struct lfs_config *cfg) {
+ int err = lfs_init(lfs, cfg);
+ if (err) {
+ return err;
+ }
+
+ // scan directory blocks for superblock and any global updates
+ lfs_mdir_t dir = {.tail = {0, 1}};
+ lfs_block_t cycle = 0;
+ while (!lfs_pair_isnull(dir.tail)) {
+ if (cycle >= lfs->cfg->block_count/2) {
+ // loop detected
+ err = LFS_ERR_CORRUPT;
+ goto cleanup;
+ }
+ cycle += 1;
+
+ // fetch next block in tail list
+ lfs_stag_t tag = lfs_dir_fetchmatch(lfs, &dir, dir.tail,
+ LFS_MKTAG(0x7ff, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_SUPERBLOCK, 0, 8),
+ NULL,
+ lfs_dir_find_match, &(struct lfs_dir_find_match){
+ lfs, "littlefs", 8});
+ if (tag < 0) {
+ err = tag;
+ goto cleanup;
+ }
+
+ // has superblock?
+ if (tag && !lfs_tag_isdelete(tag)) {
+ // update root
+ lfs->root[0] = dir.pair[0];
+ lfs->root[1] = dir.pair[1];
+
+ // grab superblock
+ lfs_superblock_t superblock;
+ tag = lfs_dir_get(lfs, &dir, LFS_MKTAG(0x7ff, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_INLINESTRUCT, 0, sizeof(superblock)),
+ &superblock);
+ if (tag < 0) {
+ err = tag;
+ goto cleanup;
+ }
+ lfs_superblock_fromle32(&superblock);
+
+ // check version
+ uint16_t major_version = (0xffff & (superblock.version >> 16));
+ uint16_t minor_version = (0xffff & (superblock.version >> 0));
+ if ((major_version != LFS_DISK_VERSION_MAJOR ||
+ minor_version > LFS_DISK_VERSION_MINOR)) {
+ LFS_ERROR("Invalid version v%"PRIu16".%"PRIu16,
+ major_version, minor_version);
+ err = LFS_ERR_INVAL;
+ goto cleanup;
+ }
+
+ // check superblock configuration
+ if (superblock.name_max) {
+ if (superblock.name_max > lfs->name_max) {
+ LFS_ERROR("Unsupported name_max (%"PRIu32" > %"PRIu32")",
+ superblock.name_max, lfs->name_max);
+ err = LFS_ERR_INVAL;
+ goto cleanup;
+ }
+
+ lfs->name_max = superblock.name_max;
+ }
+
+ if (superblock.file_max) {
+ if (superblock.file_max > lfs->file_max) {
+ LFS_ERROR("Unsupported file_max (%"PRIu32" > %"PRIu32")",
+ superblock.file_max, lfs->file_max);
+ err = LFS_ERR_INVAL;
+ goto cleanup;
+ }
+
+ lfs->file_max = superblock.file_max;
+ }
+
+ if (superblock.attr_max) {
+ if (superblock.attr_max > lfs->attr_max) {
+ LFS_ERROR("Unsupported attr_max (%"PRIu32" > %"PRIu32")",
+ superblock.attr_max, lfs->attr_max);
+ err = LFS_ERR_INVAL;
+ goto cleanup;
+ }
+
+ lfs->attr_max = superblock.attr_max;
+ }
+ }
+
+ // has gstate?
+ err = lfs_dir_getgstate(lfs, &dir, &lfs->gstate);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+ // found superblock?
+ if (lfs_pair_isnull(lfs->root)) {
+ err = LFS_ERR_INVAL;
+ goto cleanup;
+ }
+
+ // update littlefs with gstate
+ if (!lfs_gstate_iszero(&lfs->gstate)) {
+ LFS_DEBUG("Found pending gstate 0x%08"PRIx32"%08"PRIx32"%08"PRIx32,
+ lfs->gstate.tag,
+ lfs->gstate.pair[0],
+ lfs->gstate.pair[1]);
+ }
+ lfs->gstate.tag += !lfs_tag_isvalid(lfs->gstate.tag);
+ lfs->gdisk = lfs->gstate;
+
+ // setup free lookahead, to distribute allocations uniformly across
+ // boots, we start the allocator at a random location
+ lfs->free.off = lfs->seed % lfs->cfg->block_count;
+ lfs_alloc_drop(lfs);
+
+ return 0;
+
+cleanup:
+ lfs_rawunmount(lfs);
+ return err;
+}
+
+static int lfs_rawunmount(lfs_t *lfs) {
+ return lfs_deinit(lfs);
+}
+
+
+/// Filesystem filesystem operations ///
+int lfs_fs_rawtraverse(lfs_t *lfs,
+ int (*cb)(void *data, lfs_block_t block), void *data,
+ bool includeorphans) {
+ // iterate over metadata pairs
+ lfs_mdir_t dir = {.tail = {0, 1}};
+
+#ifdef LFS_MIGRATE
+ // also consider v1 blocks during migration
+ if (lfs->lfs1) {
+ int err = lfs1_traverse(lfs, cb, data);
+ if (err) {
+ return err;
+ }
+
+ dir.tail[0] = lfs->root[0];
+ dir.tail[1] = lfs->root[1];
+ }
+#endif
+
+ lfs_block_t cycle = 0;
+ while (!lfs_pair_isnull(dir.tail)) {
+ if (cycle >= lfs->cfg->block_count/2) {
+ // loop detected
+ return LFS_ERR_CORRUPT;
+ }
+ cycle += 1;
+
+ for (int i = 0; i < 2; i++) {
+ int err = cb(data, dir.tail[i]);
+ if (err) {
+ return err;
+ }
+ }
+
+ // iterate through ids in directory
+ int err = lfs_dir_fetch(lfs, &dir, dir.tail);
+ if (err) {
+ return err;
+ }
+
+ for (uint16_t id = 0; id < dir.count; id++) {
+ struct lfs_ctz ctz;
+ lfs_stag_t tag = lfs_dir_get(lfs, &dir, LFS_MKTAG(0x700, 0x3ff, 0),
+ LFS_MKTAG(LFS_TYPE_STRUCT, id, sizeof(ctz)), &ctz);
+ if (tag < 0) {
+ if (tag == LFS_ERR_NOENT) {
+ continue;
+ }
+ return tag;
+ }
+ lfs_ctz_fromle32(&ctz);
+
+ if (lfs_tag_type3(tag) == LFS_TYPE_CTZSTRUCT) {
+ err = lfs_ctz_traverse(lfs, NULL, &lfs->rcache,
+ ctz.head, ctz.size, cb, data);
+ if (err) {
+ return err;
+ }
+ } else if (includeorphans &&
+ lfs_tag_type3(tag) == LFS_TYPE_DIRSTRUCT) {
+ for (int i = 0; i < 2; i++) {
+ err = cb(data, (&ctz.head)[i]);
+ if (err) {
+ return err;
+ }
+ }
+ }
+ }
+ }
+
+#ifndef LFS_READONLY
+ // iterate over any open files
+ for (lfs_file_t *f = (lfs_file_t*)lfs->mlist; f; f = f->next) {
+ if (f->type != LFS_TYPE_REG) {
+ continue;
+ }
+
+ if ((f->flags & LFS_F_DIRTY) && !(f->flags & LFS_F_INLINE)) {
+ int err = lfs_ctz_traverse(lfs, &f->cache, &lfs->rcache,
+ f->ctz.head, f->ctz.size, cb, data);
+ if (err) {
+ return err;
+ }
+ }
+
+ if ((f->flags & LFS_F_WRITING) && !(f->flags & LFS_F_INLINE)) {
+ int err = lfs_ctz_traverse(lfs, &f->cache, &lfs->rcache,
+ f->block, f->pos, cb, data);
+ if (err) {
+ return err;
+ }
+ }
+ }
+#endif
+
+ return 0;
+}
+
+#ifndef LFS_READONLY
+static int lfs_fs_pred(lfs_t *lfs,
+ const lfs_block_t pair[2], lfs_mdir_t *pdir) {
+ // iterate over all directory directory entries
+ pdir->tail[0] = 0;
+ pdir->tail[1] = 1;
+ lfs_block_t cycle = 0;
+ while (!lfs_pair_isnull(pdir->tail)) {
+ if (cycle >= lfs->cfg->block_count/2) {
+ // loop detected
+ return LFS_ERR_CORRUPT;
+ }
+ cycle += 1;
+
+ if (lfs_pair_cmp(pdir->tail, pair) == 0) {
+ return 0;
+ }
+
+ int err = lfs_dir_fetch(lfs, pdir, pdir->tail);
+ if (err) {
+ return err;
+ }
+ }
+
+ return LFS_ERR_NOENT;
+}
+#endif
+
+#ifndef LFS_READONLY
+struct lfs_fs_parent_match {
+ lfs_t *lfs;
+ const lfs_block_t pair[2];
+};
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_fs_parent_match(void *data,
+ lfs_tag_t tag, const void *buffer) {
+ struct lfs_fs_parent_match *find = data;
+ lfs_t *lfs = find->lfs;
+ const struct lfs_diskoff *disk = buffer;
+ (void)tag;
+
+ lfs_block_t child[2];
+ int err = lfs_bd_read(lfs,
+ &lfs->pcache, &lfs->rcache, lfs->cfg->block_size,
+ disk->block, disk->off, &child, sizeof(child));
+ if (err) {
+ return err;
+ }
+
+ lfs_pair_fromle32(child);
+ return (lfs_pair_cmp(child, find->pair) == 0) ? LFS_CMP_EQ : LFS_CMP_LT;
+}
+#endif
+
+#ifndef LFS_READONLY
+static lfs_stag_t lfs_fs_parent(lfs_t *lfs, const lfs_block_t pair[2],
+ lfs_mdir_t *parent) {
+ // use fetchmatch with callback to find pairs
+ parent->tail[0] = 0;
+ parent->tail[1] = 1;
+ lfs_block_t cycle = 0;
+ while (!lfs_pair_isnull(parent->tail)) {
+ if (cycle >= lfs->cfg->block_count/2) {
+ // loop detected
+ return LFS_ERR_CORRUPT;
+ }
+ cycle += 1;
+
+ lfs_stag_t tag = lfs_dir_fetchmatch(lfs, parent, parent->tail,
+ LFS_MKTAG(0x7ff, 0, 0x3ff),
+ LFS_MKTAG(LFS_TYPE_DIRSTRUCT, 0, 8),
+ NULL,
+ lfs_fs_parent_match, &(struct lfs_fs_parent_match){
+ lfs, {pair[0], pair[1]}});
+ if (tag && tag != LFS_ERR_NOENT) {
+ return tag;
+ }
+ }
+
+ return LFS_ERR_NOENT;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_fs_relocate(lfs_t *lfs,
+ const lfs_block_t oldpair[2], lfs_block_t newpair[2]) {
+ // update internal root
+ if (lfs_pair_cmp(oldpair, lfs->root) == 0) {
+ lfs->root[0] = newpair[0];
+ lfs->root[1] = newpair[1];
+ }
+
+ // update internally tracked dirs
+ for (struct lfs_mlist *d = lfs->mlist; d; d = d->next) {
+ if (lfs_pair_cmp(oldpair, d->m.pair) == 0) {
+ d->m.pair[0] = newpair[0];
+ d->m.pair[1] = newpair[1];
+ }
+
+ if (d->type == LFS_TYPE_DIR &&
+ lfs_pair_cmp(oldpair, ((lfs_dir_t*)d)->head) == 0) {
+ ((lfs_dir_t*)d)->head[0] = newpair[0];
+ ((lfs_dir_t*)d)->head[1] = newpair[1];
+ }
+ }
+
+ // find parent
+ lfs_mdir_t parent;
+ lfs_stag_t tag = lfs_fs_parent(lfs, oldpair, &parent);
+ if (tag < 0 && tag != LFS_ERR_NOENT) {
+ return tag;
+ }
+
+ if (tag != LFS_ERR_NOENT) {
+ // update disk, this creates a desync
+ int err = lfs_fs_preporphans(lfs, +1);
+ if (err) {
+ return err;
+ }
+
+ // fix pending move in this pair? this looks like an optimization but
+ // is in fact _required_ since relocating may outdate the move.
+ uint16_t moveid = 0x3ff;
+ if (lfs_gstate_hasmovehere(&lfs->gstate, parent.pair)) {
+ moveid = lfs_tag_id(lfs->gstate.tag);
+ LFS_DEBUG("Fixing move while relocating "
+ "{0x%"PRIx32", 0x%"PRIx32"} 0x%"PRIx16"\n",
+ parent.pair[0], parent.pair[1], moveid);
+ lfs_fs_prepmove(lfs, 0x3ff, NULL);
+ if (moveid < lfs_tag_id(tag)) {
+ tag -= LFS_MKTAG(0, 1, 0);
+ }
+ }
+
+ lfs_pair_tole32(newpair);
+ err = lfs_dir_commit(lfs, &parent, LFS_MKATTRS(
+ {LFS_MKTAG_IF(moveid != 0x3ff,
+ LFS_TYPE_DELETE, moveid, 0), NULL},
+ {tag, newpair}));
+ lfs_pair_fromle32(newpair);
+ if (err) {
+ return err;
+ }
+
+ // next step, clean up orphans
+ err = lfs_fs_preporphans(lfs, -1);
+ if (err) {
+ return err;
+ }
+ }
+
+ // find pred
+ int err = lfs_fs_pred(lfs, oldpair, &parent);
+ if (err && err != LFS_ERR_NOENT) {
+ return err;
+ }
+
+ // if we can't find dir, it must be new
+ if (err != LFS_ERR_NOENT) {
+ // fix pending move in this pair? this looks like an optimization but
+ // is in fact _required_ since relocating may outdate the move.
+ uint16_t moveid = 0x3ff;
+ if (lfs_gstate_hasmovehere(&lfs->gstate, parent.pair)) {
+ moveid = lfs_tag_id(lfs->gstate.tag);
+ LFS_DEBUG("Fixing move while relocating "
+ "{0x%"PRIx32", 0x%"PRIx32"} 0x%"PRIx16"\n",
+ parent.pair[0], parent.pair[1], moveid);
+ lfs_fs_prepmove(lfs, 0x3ff, NULL);
+ }
+
+ // replace bad pair, either we clean up desync, or no desync occured
+ lfs_pair_tole32(newpair);
+ err = lfs_dir_commit(lfs, &parent, LFS_MKATTRS(
+ {LFS_MKTAG_IF(moveid != 0x3ff,
+ LFS_TYPE_DELETE, moveid, 0), NULL},
+ {LFS_MKTAG(LFS_TYPE_TAIL + parent.split, 0x3ff, 8), newpair}));
+ lfs_pair_fromle32(newpair);
+ if (err) {
+ return err;
+ }
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_fs_preporphans(lfs_t *lfs, int8_t orphans) {
+ LFS_ASSERT(lfs_tag_size(lfs->gstate.tag) > 0 || orphans >= 0);
+ lfs->gstate.tag += orphans;
+ lfs->gstate.tag = ((lfs->gstate.tag & ~LFS_MKTAG(0x800, 0, 0)) |
+ ((uint32_t)lfs_gstate_hasorphans(&lfs->gstate) << 31));
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static void lfs_fs_prepmove(lfs_t *lfs,
+ uint16_t id, const lfs_block_t pair[2]) {
+ lfs->gstate.tag = ((lfs->gstate.tag & ~LFS_MKTAG(0x7ff, 0x3ff, 0)) |
+ ((id != 0x3ff) ? LFS_MKTAG(LFS_TYPE_DELETE, id, 0) : 0));
+ lfs->gstate.pair[0] = (id != 0x3ff) ? pair[0] : 0;
+ lfs->gstate.pair[1] = (id != 0x3ff) ? pair[1] : 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_fs_demove(lfs_t *lfs) {
+ if (!lfs_gstate_hasmove(&lfs->gdisk)) {
+ return 0;
+ }
+
+ // Fix bad moves
+ LFS_DEBUG("Fixing move {0x%"PRIx32", 0x%"PRIx32"} 0x%"PRIx16,
+ lfs->gdisk.pair[0],
+ lfs->gdisk.pair[1],
+ lfs_tag_id(lfs->gdisk.tag));
+
+ // fetch and delete the moved entry
+ lfs_mdir_t movedir;
+ int err = lfs_dir_fetch(lfs, &movedir, lfs->gdisk.pair);
+ if (err) {
+ return err;
+ }
+
+ // prep gstate and delete move id
+ uint16_t moveid = lfs_tag_id(lfs->gdisk.tag);
+ lfs_fs_prepmove(lfs, 0x3ff, NULL);
+ err = lfs_dir_commit(lfs, &movedir, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_DELETE, moveid, 0), NULL}));
+ if (err) {
+ return err;
+ }
+
+ return 0;
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_fs_deorphan(lfs_t *lfs) {
+ if (!lfs_gstate_hasorphans(&lfs->gstate)) {
+ return 0;
+ }
+
+ // Fix any orphans
+ lfs_mdir_t pdir = {.split = true, .tail = {0, 1}};
+ lfs_mdir_t dir;
+
+ // iterate over all directory directory entries
+ while (!lfs_pair_isnull(pdir.tail)) {
+ int err = lfs_dir_fetch(lfs, &dir, pdir.tail);
+ if (err) {
+ return err;
+ }
+
+ // check head blocks for orphans
+ if (!pdir.split) {
+ // check if we have a parent
+ lfs_mdir_t parent;
+ lfs_stag_t tag = lfs_fs_parent(lfs, pdir.tail, &parent);
+ if (tag < 0 && tag != LFS_ERR_NOENT) {
+ return tag;
+ }
+
+ if (tag == LFS_ERR_NOENT) {
+ // we are an orphan
+ LFS_DEBUG("Fixing orphan {0x%"PRIx32", 0x%"PRIx32"}",
+ pdir.tail[0], pdir.tail[1]);
+
+ err = lfs_dir_drop(lfs, &pdir, &dir);
+ if (err) {
+ return err;
+ }
+
+ // refetch tail
+ continue;
+ }
+
+ lfs_block_t pair[2];
+ lfs_stag_t res = lfs_dir_get(lfs, &parent,
+ LFS_MKTAG(0x7ff, 0x3ff, 0), tag, pair);
+ if (res < 0) {
+ return res;
+ }
+ lfs_pair_fromle32(pair);
+
+ if (!lfs_pair_sync(pair, pdir.tail)) {
+ // we have desynced
+ LFS_DEBUG("Fixing half-orphan {0x%"PRIx32", 0x%"PRIx32"} "
+ "-> {0x%"PRIx32", 0x%"PRIx32"}",
+ pdir.tail[0], pdir.tail[1], pair[0], pair[1]);
+
+ lfs_pair_tole32(pair);
+ err = lfs_dir_commit(lfs, &pdir, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_SOFTTAIL, 0x3ff, 8), pair}));
+ lfs_pair_fromle32(pair);
+ if (err) {
+ return err;
+ }
+
+ // refetch tail
+ continue;
+ }
+ }
+
+ pdir = dir;
+ }
+
+ // mark orphans as fixed
+ return lfs_fs_preporphans(lfs, -lfs_gstate_getorphans(&lfs->gstate));
+}
+#endif
+
+#ifndef LFS_READONLY
+static int lfs_fs_forceconsistency(lfs_t *lfs) {
+ int err = lfs_fs_demove(lfs);
+ if (err) {
+ return err;
+ }
+
+ err = lfs_fs_deorphan(lfs);
+ if (err) {
+ return err;
+ }
+
+ return 0;
+}
+#endif
+
+static int lfs_fs_size_count(void *p, lfs_block_t block) {
+ (void)block;
+ lfs_size_t *size = p;
+ *size += 1;
+ return 0;
+}
+
+static lfs_ssize_t lfs_fs_rawsize(lfs_t *lfs) {
+ lfs_size_t size = 0;
+ int err = lfs_fs_rawtraverse(lfs, lfs_fs_size_count, &size, false);
+ if (err) {
+ return err;
+ }
+
+ return size;
+}
+
+#ifdef LFS_MIGRATE
+////// Migration from littelfs v1 below this //////
+
+/// Version info ///
+
+// Software library version
+// Major (top-nibble), incremented on backwards incompatible changes
+// Minor (bottom-nibble), incremented on feature additions
+#define LFS1_VERSION 0x00010007
+#define LFS1_VERSION_MAJOR (0xffff & (LFS1_VERSION >> 16))
+#define LFS1_VERSION_MINOR (0xffff & (LFS1_VERSION >> 0))
+
+// Version of On-disk data structures
+// Major (top-nibble), incremented on backwards incompatible changes
+// Minor (bottom-nibble), incremented on feature additions
+#define LFS1_DISK_VERSION 0x00010001
+#define LFS1_DISK_VERSION_MAJOR (0xffff & (LFS1_DISK_VERSION >> 16))
+#define LFS1_DISK_VERSION_MINOR (0xffff & (LFS1_DISK_VERSION >> 0))
+
+
+/// v1 Definitions ///
+
+// File types
+enum lfs1_type {
+ LFS1_TYPE_REG = 0x11,
+ LFS1_TYPE_DIR = 0x22,
+ LFS1_TYPE_SUPERBLOCK = 0x2e,
+};
+
+typedef struct lfs1 {
+ lfs_block_t root[2];
+} lfs1_t;
+
+typedef struct lfs1_entry {
+ lfs_off_t off;
+
+ struct lfs1_disk_entry {
+ uint8_t type;
+ uint8_t elen;
+ uint8_t alen;
+ uint8_t nlen;
+ union {
+ struct {
+ lfs_block_t head;
+ lfs_size_t size;
+ } file;
+ lfs_block_t dir[2];
+ } u;
+ } d;
+} lfs1_entry_t;
+
+typedef struct lfs1_dir {
+ struct lfs1_dir *next;
+ lfs_block_t pair[2];
+ lfs_off_t off;
+
+ lfs_block_t head[2];
+ lfs_off_t pos;
+
+ struct lfs1_disk_dir {
+ uint32_t rev;
+ lfs_size_t size;
+ lfs_block_t tail[2];
+ } d;
+} lfs1_dir_t;
+
+typedef struct lfs1_superblock {
+ lfs_off_t off;
+
+ struct lfs1_disk_superblock {
+ uint8_t type;
+ uint8_t elen;
+ uint8_t alen;
+ uint8_t nlen;
+ lfs_block_t root[2];
+ uint32_t block_size;
+ uint32_t block_count;
+ uint32_t version;
+ char magic[8];
+ } d;
+} lfs1_superblock_t;
+
+
+/// Low-level wrappers v1->v2 ///
+static void lfs1_crc(uint32_t *crc, const void *buffer, size_t size) {
+ *crc = lfs_crc(*crc, buffer, size);
+}
+
+static int lfs1_bd_read(lfs_t *lfs, lfs_block_t block,
+ lfs_off_t off, void *buffer, lfs_size_t size) {
+ // if we ever do more than writes to alternating pairs,
+ // this may need to consider pcache
+ return lfs_bd_read(lfs, &lfs->pcache, &lfs->rcache, size,
+ block, off, buffer, size);
+}
+
+static int lfs1_bd_crc(lfs_t *lfs, lfs_block_t block,
+ lfs_off_t off, lfs_size_t size, uint32_t *crc) {
+ for (lfs_off_t i = 0; i < size; i++) {
+ uint8_t c;
+ int err = lfs1_bd_read(lfs, block, off+i, &c, 1);
+ if (err) {
+ return err;
+ }
+
+ lfs1_crc(crc, &c, 1);
+ }
+
+ return 0;
+}
+
+
+/// Endian swapping functions ///
+static void lfs1_dir_fromle32(struct lfs1_disk_dir *d) {
+ d->rev = lfs_fromle32(d->rev);
+ d->size = lfs_fromle32(d->size);
+ d->tail[0] = lfs_fromle32(d->tail[0]);
+ d->tail[1] = lfs_fromle32(d->tail[1]);
+}
+
+static void lfs1_dir_tole32(struct lfs1_disk_dir *d) {
+ d->rev = lfs_tole32(d->rev);
+ d->size = lfs_tole32(d->size);
+ d->tail[0] = lfs_tole32(d->tail[0]);
+ d->tail[1] = lfs_tole32(d->tail[1]);
+}
+
+static void lfs1_entry_fromle32(struct lfs1_disk_entry *d) {
+ d->u.dir[0] = lfs_fromle32(d->u.dir[0]);
+ d->u.dir[1] = lfs_fromle32(d->u.dir[1]);
+}
+
+static void lfs1_entry_tole32(struct lfs1_disk_entry *d) {
+ d->u.dir[0] = lfs_tole32(d->u.dir[0]);
+ d->u.dir[1] = lfs_tole32(d->u.dir[1]);
+}
+
+static void lfs1_superblock_fromle32(struct lfs1_disk_superblock *d) {
+ d->root[0] = lfs_fromle32(d->root[0]);
+ d->root[1] = lfs_fromle32(d->root[1]);
+ d->block_size = lfs_fromle32(d->block_size);
+ d->block_count = lfs_fromle32(d->block_count);
+ d->version = lfs_fromle32(d->version);
+}
+
+
+///// Metadata pair and directory operations ///
+static inline lfs_size_t lfs1_entry_size(const lfs1_entry_t *entry) {
+ return 4 + entry->d.elen + entry->d.alen + entry->d.nlen;
+}
+
+static int lfs1_dir_fetch(lfs_t *lfs,
+ lfs1_dir_t *dir, const lfs_block_t pair[2]) {
+ // copy out pair, otherwise may be aliasing dir
+ const lfs_block_t tpair[2] = {pair[0], pair[1]};
+ bool valid = false;
+
+ // check both blocks for the most recent revision
+ for (int i = 0; i < 2; i++) {
+ struct lfs1_disk_dir test;
+ int err = lfs1_bd_read(lfs, tpair[i], 0, &test, sizeof(test));
+ lfs1_dir_fromle32(&test);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ continue;
+ }
+ return err;
+ }
+
+ if (valid && lfs_scmp(test.rev, dir->d.rev) < 0) {
+ continue;
+ }
+
+ if ((0x7fffffff & test.size) < sizeof(test)+4 ||
+ (0x7fffffff & test.size) > lfs->cfg->block_size) {
+ continue;
+ }
+
+ uint32_t crc = 0xffffffff;
+ lfs1_dir_tole32(&test);
+ lfs1_crc(&crc, &test, sizeof(test));
+ lfs1_dir_fromle32(&test);
+ err = lfs1_bd_crc(lfs, tpair[i], sizeof(test),
+ (0x7fffffff & test.size) - sizeof(test), &crc);
+ if (err) {
+ if (err == LFS_ERR_CORRUPT) {
+ continue;
+ }
+ return err;
+ }
+
+ if (crc != 0) {
+ continue;
+ }
+
+ valid = true;
+
+ // setup dir in case it's valid
+ dir->pair[0] = tpair[(i+0) % 2];
+ dir->pair[1] = tpair[(i+1) % 2];
+ dir->off = sizeof(dir->d);
+ dir->d = test;
+ }
+
+ if (!valid) {
+ LFS_ERROR("Corrupted dir pair at {0x%"PRIx32", 0x%"PRIx32"}",
+ tpair[0], tpair[1]);
+ return LFS_ERR_CORRUPT;
+ }
+
+ return 0;
+}
+
+static int lfs1_dir_next(lfs_t *lfs, lfs1_dir_t *dir, lfs1_entry_t *entry) {
+ while (dir->off + sizeof(entry->d) > (0x7fffffff & dir->d.size)-4) {
+ if (!(0x80000000 & dir->d.size)) {
+ entry->off = dir->off;
+ return LFS_ERR_NOENT;
+ }
+
+ int err = lfs1_dir_fetch(lfs, dir, dir->d.tail);
+ if (err) {
+ return err;
+ }
+
+ dir->off = sizeof(dir->d);
+ dir->pos += sizeof(dir->d) + 4;
+ }
+
+ int err = lfs1_bd_read(lfs, dir->pair[0], dir->off,
+ &entry->d, sizeof(entry->d));
+ lfs1_entry_fromle32(&entry->d);
+ if (err) {
+ return err;
+ }
+
+ entry->off = dir->off;
+ dir->off += lfs1_entry_size(entry);
+ dir->pos += lfs1_entry_size(entry);
+ return 0;
+}
+
+/// littlefs v1 specific operations ///
+int lfs1_traverse(lfs_t *lfs, int (*cb)(void*, lfs_block_t), void *data) {
+ if (lfs_pair_isnull(lfs->lfs1->root)) {
+ return 0;
+ }
+
+ // iterate over metadata pairs
+ lfs1_dir_t dir;
+ lfs1_entry_t entry;
+ lfs_block_t cwd[2] = {0, 1};
+
+ while (true) {
+ for (int i = 0; i < 2; i++) {
+ int err = cb(data, cwd[i]);
+ if (err) {
+ return err;
+ }
+ }
+
+ int err = lfs1_dir_fetch(lfs, &dir, cwd);
+ if (err) {
+ return err;
+ }
+
+ // iterate over contents
+ while (dir.off + sizeof(entry.d) <= (0x7fffffff & dir.d.size)-4) {
+ err = lfs1_bd_read(lfs, dir.pair[0], dir.off,
+ &entry.d, sizeof(entry.d));
+ lfs1_entry_fromle32(&entry.d);
+ if (err) {
+ return err;
+ }
+
+ dir.off += lfs1_entry_size(&entry);
+ if ((0x70 & entry.d.type) == (0x70 & LFS1_TYPE_REG)) {
+ err = lfs_ctz_traverse(lfs, NULL, &lfs->rcache,
+ entry.d.u.file.head, entry.d.u.file.size, cb, data);
+ if (err) {
+ return err;
+ }
+ }
+ }
+
+ // we also need to check if we contain a threaded v2 directory
+ lfs_mdir_t dir2 = {.split=true, .tail={cwd[0], cwd[1]}};
+ while (dir2.split) {
+ err = lfs_dir_fetch(lfs, &dir2, dir2.tail);
+ if (err) {
+ break;
+ }
+
+ for (int i = 0; i < 2; i++) {
+ err = cb(data, dir2.pair[i]);
+ if (err) {
+ return err;
+ }
+ }
+ }
+
+ cwd[0] = dir.d.tail[0];
+ cwd[1] = dir.d.tail[1];
+
+ if (lfs_pair_isnull(cwd)) {
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static int lfs1_moved(lfs_t *lfs, const void *e) {
+ if (lfs_pair_isnull(lfs->lfs1->root)) {
+ return 0;
+ }
+
+ // skip superblock
+ lfs1_dir_t cwd;
+ int err = lfs1_dir_fetch(lfs, &cwd, (const lfs_block_t[2]){0, 1});
+ if (err) {
+ return err;
+ }
+
+ // iterate over all directory directory entries
+ lfs1_entry_t entry;
+ while (!lfs_pair_isnull(cwd.d.tail)) {
+ err = lfs1_dir_fetch(lfs, &cwd, cwd.d.tail);
+ if (err) {
+ return err;
+ }
+
+ while (true) {
+ err = lfs1_dir_next(lfs, &cwd, &entry);
+ if (err && err != LFS_ERR_NOENT) {
+ return err;
+ }
+
+ if (err == LFS_ERR_NOENT) {
+ break;
+ }
+
+ if (!(0x80 & entry.d.type) &&
+ memcmp(&entry.d.u, e, sizeof(entry.d.u)) == 0) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+}
+
+/// Filesystem operations ///
+static int lfs1_mount(lfs_t *lfs, struct lfs1 *lfs1,
+ const struct lfs_config *cfg) {
+ int err = 0;
+ {
+ err = lfs_init(lfs, cfg);
+ if (err) {
+ return err;
+ }
+
+ lfs->lfs1 = lfs1;
+ lfs->lfs1->root[0] = LFS_BLOCK_NULL;
+ lfs->lfs1->root[1] = LFS_BLOCK_NULL;
+
+ // setup free lookahead
+ lfs->free.off = 0;
+ lfs->free.size = 0;
+ lfs->free.i = 0;
+ lfs_alloc_ack(lfs);
+
+ // load superblock
+ lfs1_dir_t dir;
+ lfs1_superblock_t superblock;
+ err = lfs1_dir_fetch(lfs, &dir, (const lfs_block_t[2]){0, 1});
+ if (err && err != LFS_ERR_CORRUPT) {
+ goto cleanup;
+ }
+
+ if (!err) {
+ err = lfs1_bd_read(lfs, dir.pair[0], sizeof(dir.d),
+ &superblock.d, sizeof(superblock.d));
+ lfs1_superblock_fromle32(&superblock.d);
+ if (err) {
+ goto cleanup;
+ }
+
+ lfs->lfs1->root[0] = superblock.d.root[0];
+ lfs->lfs1->root[1] = superblock.d.root[1];
+ }
+
+ if (err || memcmp(superblock.d.magic, "littlefs", 8) != 0) {
+ LFS_ERROR("Invalid superblock at {0x%"PRIx32", 0x%"PRIx32"}",
+ 0, 1);
+ err = LFS_ERR_CORRUPT;
+ goto cleanup;
+ }
+
+ uint16_t major_version = (0xffff & (superblock.d.version >> 16));
+ uint16_t minor_version = (0xffff & (superblock.d.version >> 0));
+ if ((major_version != LFS1_DISK_VERSION_MAJOR ||
+ minor_version > LFS1_DISK_VERSION_MINOR)) {
+ LFS_ERROR("Invalid version v%d.%d", major_version, minor_version);
+ err = LFS_ERR_INVAL;
+ goto cleanup;
+ }
+
+ return 0;
+ }
+
+cleanup:
+ lfs_deinit(lfs);
+ return err;
+}
+
+static int lfs1_unmount(lfs_t *lfs) {
+ return lfs_deinit(lfs);
+}
+
+/// v1 migration ///
+static int lfs_rawmigrate(lfs_t *lfs, const struct lfs_config *cfg) {
+ struct lfs1 lfs1;
+ int err = lfs1_mount(lfs, &lfs1, cfg);
+ if (err) {
+ return err;
+ }
+
+ {
+ // iterate through each directory, copying over entries
+ // into new directory
+ lfs1_dir_t dir1;
+ lfs_mdir_t dir2;
+ dir1.d.tail[0] = lfs->lfs1->root[0];
+ dir1.d.tail[1] = lfs->lfs1->root[1];
+ while (!lfs_pair_isnull(dir1.d.tail)) {
+ // iterate old dir
+ err = lfs1_dir_fetch(lfs, &dir1, dir1.d.tail);
+ if (err) {
+ goto cleanup;
+ }
+
+ // create new dir and bind as temporary pretend root
+ err = lfs_dir_alloc(lfs, &dir2);
+ if (err) {
+ goto cleanup;
+ }
+
+ dir2.rev = dir1.d.rev;
+ dir1.head[0] = dir1.pair[0];
+ dir1.head[1] = dir1.pair[1];
+ lfs->root[0] = dir2.pair[0];
+ lfs->root[1] = dir2.pair[1];
+
+ err = lfs_dir_commit(lfs, &dir2, NULL, 0);
+ if (err) {
+ goto cleanup;
+ }
+
+ while (true) {
+ lfs1_entry_t entry1;
+ err = lfs1_dir_next(lfs, &dir1, &entry1);
+ if (err && err != LFS_ERR_NOENT) {
+ goto cleanup;
+ }
+
+ if (err == LFS_ERR_NOENT) {
+ break;
+ }
+
+ // check that entry has not been moved
+ if (entry1.d.type & 0x80) {
+ int moved = lfs1_moved(lfs, &entry1.d.u);
+ if (moved < 0) {
+ err = moved;
+ goto cleanup;
+ }
+
+ if (moved) {
+ continue;
+ }
+
+ entry1.d.type &= ~0x80;
+ }
+
+ // also fetch name
+ char name[LFS_NAME_MAX+1];
+ memset(name, 0, sizeof(name));
+ err = lfs1_bd_read(lfs, dir1.pair[0],
+ entry1.off + 4+entry1.d.elen+entry1.d.alen,
+ name, entry1.d.nlen);
+ if (err) {
+ goto cleanup;
+ }
+
+ bool isdir = (entry1.d.type == LFS1_TYPE_DIR);
+
+ // create entry in new dir
+ err = lfs_dir_fetch(lfs, &dir2, lfs->root);
+ if (err) {
+ goto cleanup;
+ }
+
+ uint16_t id;
+ err = lfs_dir_find(lfs, &dir2, &(const char*){name}, &id);
+ if (!(err == LFS_ERR_NOENT && id != 0x3ff)) {
+ err = (err < 0) ? err : LFS_ERR_EXIST;
+ goto cleanup;
+ }
+
+ lfs1_entry_tole32(&entry1.d);
+ err = lfs_dir_commit(lfs, &dir2, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_CREATE, id, 0), NULL},
+ {LFS_MKTAG_IF_ELSE(isdir,
+ LFS_TYPE_DIR, id, entry1.d.nlen,
+ LFS_TYPE_REG, id, entry1.d.nlen),
+ name},
+ {LFS_MKTAG_IF_ELSE(isdir,
+ LFS_TYPE_DIRSTRUCT, id, sizeof(entry1.d.u),
+ LFS_TYPE_CTZSTRUCT, id, sizeof(entry1.d.u)),
+ &entry1.d.u}));
+ lfs1_entry_fromle32(&entry1.d);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+ if (!lfs_pair_isnull(dir1.d.tail)) {
+ // find last block and update tail to thread into fs
+ err = lfs_dir_fetch(lfs, &dir2, lfs->root);
+ if (err) {
+ goto cleanup;
+ }
+
+ while (dir2.split) {
+ err = lfs_dir_fetch(lfs, &dir2, dir2.tail);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+ lfs_pair_tole32(dir2.pair);
+ err = lfs_dir_commit(lfs, &dir2, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_SOFTTAIL, 0x3ff, 8), dir1.d.tail}));
+ lfs_pair_fromle32(dir2.pair);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+ // Copy over first block to thread into fs. Unfortunately
+ // if this fails there is not much we can do.
+ LFS_DEBUG("Migrating {0x%"PRIx32", 0x%"PRIx32"} "
+ "-> {0x%"PRIx32", 0x%"PRIx32"}",
+ lfs->root[0], lfs->root[1], dir1.head[0], dir1.head[1]);
+
+ err = lfs_bd_erase(lfs, dir1.head[1]);
+ if (err) {
+ goto cleanup;
+ }
+
+ err = lfs_dir_fetch(lfs, &dir2, lfs->root);
+ if (err) {
+ goto cleanup;
+ }
+
+ for (lfs_off_t i = 0; i < dir2.off; i++) {
+ uint8_t dat;
+ err = lfs_bd_read(lfs,
+ NULL, &lfs->rcache, dir2.off,
+ dir2.pair[0], i, &dat, 1);
+ if (err) {
+ goto cleanup;
+ }
+
+ err = lfs_bd_prog(lfs,
+ &lfs->pcache, &lfs->rcache, true,
+ dir1.head[1], i, &dat, 1);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+ err = lfs_bd_flush(lfs, &lfs->pcache, &lfs->rcache, true);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+ // Create new superblock. This marks a successful migration!
+ err = lfs1_dir_fetch(lfs, &dir1, (const lfs_block_t[2]){0, 1});
+ if (err) {
+ goto cleanup;
+ }
+
+ dir2.pair[0] = dir1.pair[0];
+ dir2.pair[1] = dir1.pair[1];
+ dir2.rev = dir1.d.rev;
+ dir2.off = sizeof(dir2.rev);
+ dir2.etag = 0xffffffff;
+ dir2.count = 0;
+ dir2.tail[0] = lfs->lfs1->root[0];
+ dir2.tail[1] = lfs->lfs1->root[1];
+ dir2.erased = false;
+ dir2.split = true;
+
+ lfs_superblock_t superblock = {
+ .version = LFS_DISK_VERSION,
+ .block_size = lfs->cfg->block_size,
+ .block_count = lfs->cfg->block_count,
+ .name_max = lfs->name_max,
+ .file_max = lfs->file_max,
+ .attr_max = lfs->attr_max,
+ };
+
+ lfs_superblock_tole32(&superblock);
+ err = lfs_dir_commit(lfs, &dir2, LFS_MKATTRS(
+ {LFS_MKTAG(LFS_TYPE_CREATE, 0, 0), NULL},
+ {LFS_MKTAG(LFS_TYPE_SUPERBLOCK, 0, 8), "littlefs"},
+ {LFS_MKTAG(LFS_TYPE_INLINESTRUCT, 0, sizeof(superblock)),
+ &superblock}));
+ if (err) {
+ goto cleanup;
+ }
+
+ // sanity check that fetch works
+ err = lfs_dir_fetch(lfs, &dir2, (const lfs_block_t[2]){0, 1});
+ if (err) {
+ goto cleanup;
+ }
+
+ // force compaction to prevent accidentally mounting v1
+ dir2.erased = false;
+ err = lfs_dir_commit(lfs, &dir2, NULL, 0);
+ if (err) {
+ goto cleanup;
+ }
+ }
+
+cleanup:
+ lfs1_unmount(lfs);
+ return err;
+}
+
+#endif
+
+
+/// Public API wrappers ///
+
+// Here we can add tracing/thread safety easily
+
+// Thread-safe wrappers if enabled
+#ifdef LFS_THREADSAFE
+#define LFS_LOCK(cfg) cfg->lock(cfg)
+#define LFS_UNLOCK(cfg) cfg->unlock(cfg)
+#else
+#define LFS_LOCK(cfg) ((void)cfg, 0)
+#define LFS_UNLOCK(cfg) ((void)cfg)
+#endif
+
+// Public API
+#ifndef LFS_READONLY
+int lfs_format(lfs_t *lfs, const struct lfs_config *cfg) {
+ int err = LFS_LOCK(cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_format(%p, %p {.context=%p, "
+ ".read=%p, .prog=%p, .erase=%p, .sync=%p, "
+ ".read_size=%"PRIu32", .prog_size=%"PRIu32", "
+ ".block_size=%"PRIu32", .block_count=%"PRIu32", "
+ ".block_cycles=%"PRIu32", .cache_size=%"PRIu32", "
+ ".lookahead_size=%"PRIu32", .read_buffer=%p, "
+ ".prog_buffer=%p, .lookahead_buffer=%p, "
+ ".name_max=%"PRIu32", .file_max=%"PRIu32", "
+ ".attr_max=%"PRIu32"})",
+ (void*)lfs, (void*)cfg, cfg->context,
+ (void*)(uintptr_t)cfg->read, (void*)(uintptr_t)cfg->prog,
+ (void*)(uintptr_t)cfg->erase, (void*)(uintptr_t)cfg->sync,
+ cfg->read_size, cfg->prog_size, cfg->block_size, cfg->block_count,
+ cfg->block_cycles, cfg->cache_size, cfg->lookahead_size,
+ cfg->read_buffer, cfg->prog_buffer, cfg->lookahead_buffer,
+ cfg->name_max, cfg->file_max, cfg->attr_max);
+
+ err = lfs_rawformat(lfs, cfg);
+
+ LFS_TRACE("lfs_format -> %d", err);
+ LFS_UNLOCK(cfg);
+ return err;
+}
+#endif
+
+int lfs_mount(lfs_t *lfs, const struct lfs_config *cfg) {
+ int err = LFS_LOCK(cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_mount(%p, %p {.context=%p, "
+ ".read=%p, .prog=%p, .erase=%p, .sync=%p, "
+ ".read_size=%"PRIu32", .prog_size=%"PRIu32", "
+ ".block_size=%"PRIu32", .block_count=%"PRIu32", "
+ ".block_cycles=%"PRIu32", .cache_size=%"PRIu32", "
+ ".lookahead_size=%"PRIu32", .read_buffer=%p, "
+ ".prog_buffer=%p, .lookahead_buffer=%p, "
+ ".name_max=%"PRIu32", .file_max=%"PRIu32", "
+ ".attr_max=%"PRIu32"})",
+ (void*)lfs, (void*)cfg, cfg->context,
+ (void*)(uintptr_t)cfg->read, (void*)(uintptr_t)cfg->prog,
+ (void*)(uintptr_t)cfg->erase, (void*)(uintptr_t)cfg->sync,
+ cfg->read_size, cfg->prog_size, cfg->block_size, cfg->block_count,
+ cfg->block_cycles, cfg->cache_size, cfg->lookahead_size,
+ cfg->read_buffer, cfg->prog_buffer, cfg->lookahead_buffer,
+ cfg->name_max, cfg->file_max, cfg->attr_max);
+
+ err = lfs_rawmount(lfs, cfg);
+
+ LFS_TRACE("lfs_mount -> %d", err);
+ LFS_UNLOCK(cfg);
+ return err;
+}
+
+int lfs_unmount(lfs_t *lfs) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_unmount(%p)", (void*)lfs);
+
+ err = lfs_rawunmount(lfs);
+
+ LFS_TRACE("lfs_unmount -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+#ifndef LFS_READONLY
+int lfs_remove(lfs_t *lfs, const char *path) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_remove(%p, \"%s\")", (void*)lfs, path);
+
+ err = lfs_rawremove(lfs, path);
+
+ LFS_TRACE("lfs_remove -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+#ifndef LFS_READONLY
+int lfs_rename(lfs_t *lfs, const char *oldpath, const char *newpath) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_rename(%p, \"%s\", \"%s\")", (void*)lfs, oldpath, newpath);
+
+ err = lfs_rawrename(lfs, oldpath, newpath);
+
+ LFS_TRACE("lfs_rename -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+int lfs_stat(lfs_t *lfs, const char *path, struct lfs_info *info) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_stat(%p, \"%s\", %p)", (void*)lfs, path, (void*)info);
+
+ err = lfs_rawstat(lfs, path, info);
+
+ LFS_TRACE("lfs_stat -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+lfs_ssize_t lfs_getattr(lfs_t *lfs, const char *path,
+ uint8_t type, void *buffer, lfs_size_t size) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_getattr(%p, \"%s\", %"PRIu8", %p, %"PRIu32")",
+ (void*)lfs, path, type, buffer, size);
+
+ lfs_ssize_t res = lfs_rawgetattr(lfs, path, type, buffer, size);
+
+ LFS_TRACE("lfs_getattr -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+#ifndef LFS_READONLY
+int lfs_setattr(lfs_t *lfs, const char *path,
+ uint8_t type, const void *buffer, lfs_size_t size) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_setattr(%p, \"%s\", %"PRIu8", %p, %"PRIu32")",
+ (void*)lfs, path, type, buffer, size);
+
+ err = lfs_rawsetattr(lfs, path, type, buffer, size);
+
+ LFS_TRACE("lfs_setattr -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+#ifndef LFS_READONLY
+int lfs_removeattr(lfs_t *lfs, const char *path, uint8_t type) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_removeattr(%p, \"%s\", %"PRIu8")", (void*)lfs, path, type);
+
+ err = lfs_rawremoveattr(lfs, path, type);
+
+ LFS_TRACE("lfs_removeattr -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+int lfs_file_open(lfs_t *lfs, lfs_file_t *file, const char *path, int flags) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_open(%p, %p, \"%s\", %x)",
+ (void*)lfs, (void*)file, path, flags);
+ LFS_ASSERT(!lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ err = lfs_file_rawopen(lfs, file, path, flags);
+
+ LFS_TRACE("lfs_file_open -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+int lfs_file_opencfg(lfs_t *lfs, lfs_file_t *file,
+ const char *path, int flags,
+ const struct lfs_file_config *cfg) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_opencfg(%p, %p, \"%s\", %x, %p {"
+ ".buffer=%p, .attrs=%p, .attr_count=%"PRIu32"})",
+ (void*)lfs, (void*)file, path, flags,
+ (void*)cfg, cfg->buffer, (void*)cfg->attrs, cfg->attr_count);
+ LFS_ASSERT(!lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ err = lfs_file_rawopencfg(lfs, file, path, flags, cfg);
+
+ LFS_TRACE("lfs_file_opencfg -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+int lfs_file_close(lfs_t *lfs, lfs_file_t *file) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_close(%p, %p)", (void*)lfs, (void*)file);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ err = lfs_file_rawclose(lfs, file);
+
+ LFS_TRACE("lfs_file_close -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+#ifndef LFS_READONLY
+int lfs_file_sync(lfs_t *lfs, lfs_file_t *file) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_sync(%p, %p)", (void*)lfs, (void*)file);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ err = lfs_file_rawsync(lfs, file);
+
+ LFS_TRACE("lfs_file_sync -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+lfs_ssize_t lfs_file_read(lfs_t *lfs, lfs_file_t *file,
+ void *buffer, lfs_size_t size) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_read(%p, %p, %p, %"PRIu32")",
+ (void*)lfs, (void*)file, buffer, size);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ lfs_ssize_t res = lfs_file_rawread(lfs, file, buffer, size);
+
+ LFS_TRACE("lfs_file_read -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+#ifndef LFS_READONLY
+lfs_ssize_t lfs_file_write(lfs_t *lfs, lfs_file_t *file,
+ const void *buffer, lfs_size_t size) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_write(%p, %p, %p, %"PRIu32")",
+ (void*)lfs, (void*)file, buffer, size);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ lfs_ssize_t res = lfs_file_rawwrite(lfs, file, buffer, size);
+
+ LFS_TRACE("lfs_file_write -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+#endif
+
+lfs_soff_t lfs_file_seek(lfs_t *lfs, lfs_file_t *file,
+ lfs_soff_t off, int whence) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_seek(%p, %p, %"PRId32", %d)",
+ (void*)lfs, (void*)file, off, whence);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ lfs_soff_t res = lfs_file_rawseek(lfs, file, off, whence);
+
+ LFS_TRACE("lfs_file_seek -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+#ifndef LFS_READONLY
+int lfs_file_truncate(lfs_t *lfs, lfs_file_t *file, lfs_off_t size) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_truncate(%p, %p, %"PRIu32")",
+ (void*)lfs, (void*)file, size);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ err = lfs_file_rawtruncate(lfs, file, size);
+
+ LFS_TRACE("lfs_file_truncate -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+lfs_soff_t lfs_file_tell(lfs_t *lfs, lfs_file_t *file) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_tell(%p, %p)", (void*)lfs, (void*)file);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ lfs_soff_t res = lfs_file_rawtell(lfs, file);
+
+ LFS_TRACE("lfs_file_tell -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+int lfs_file_rewind(lfs_t *lfs, lfs_file_t *file) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_rewind(%p, %p)", (void*)lfs, (void*)file);
+
+ err = lfs_file_rawrewind(lfs, file);
+
+ LFS_TRACE("lfs_file_rewind -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+lfs_soff_t lfs_file_size(lfs_t *lfs, lfs_file_t *file) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_file_size(%p, %p)", (void*)lfs, (void*)file);
+ LFS_ASSERT(lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)file));
+
+ lfs_soff_t res = lfs_file_rawsize(lfs, file);
+
+ LFS_TRACE("lfs_file_size -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+#ifndef LFS_READONLY
+int lfs_mkdir(lfs_t *lfs, const char *path) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_mkdir(%p, \"%s\")", (void*)lfs, path);
+
+ err = lfs_rawmkdir(lfs, path);
+
+ LFS_TRACE("lfs_mkdir -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+#endif
+
+int lfs_dir_open(lfs_t *lfs, lfs_dir_t *dir, const char *path) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_dir_open(%p, %p, \"%s\")", (void*)lfs, (void*)dir, path);
+ LFS_ASSERT(!lfs_mlist_isopen(lfs->mlist, (struct lfs_mlist*)dir));
+
+ err = lfs_dir_rawopen(lfs, dir, path);
+
+ LFS_TRACE("lfs_dir_open -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+int lfs_dir_close(lfs_t *lfs, lfs_dir_t *dir) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_dir_close(%p, %p)", (void*)lfs, (void*)dir);
+
+ err = lfs_dir_rawclose(lfs, dir);
+
+ LFS_TRACE("lfs_dir_close -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+int lfs_dir_read(lfs_t *lfs, lfs_dir_t *dir, struct lfs_info *info) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_dir_read(%p, %p, %p)",
+ (void*)lfs, (void*)dir, (void*)info);
+
+ err = lfs_dir_rawread(lfs, dir, info);
+
+ LFS_TRACE("lfs_dir_read -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+int lfs_dir_seek(lfs_t *lfs, lfs_dir_t *dir, lfs_off_t off) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_dir_seek(%p, %p, %"PRIu32")",
+ (void*)lfs, (void*)dir, off);
+
+ err = lfs_dir_rawseek(lfs, dir, off);
+
+ LFS_TRACE("lfs_dir_seek -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+lfs_soff_t lfs_dir_tell(lfs_t *lfs, lfs_dir_t *dir) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_dir_tell(%p, %p)", (void*)lfs, (void*)dir);
+
+ lfs_soff_t res = lfs_dir_rawtell(lfs, dir);
+
+ LFS_TRACE("lfs_dir_tell -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+int lfs_dir_rewind(lfs_t *lfs, lfs_dir_t *dir) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_dir_rewind(%p, %p)", (void*)lfs, (void*)dir);
+
+ err = lfs_dir_rawrewind(lfs, dir);
+
+ LFS_TRACE("lfs_dir_rewind -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+lfs_ssize_t lfs_fs_size(lfs_t *lfs) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_fs_size(%p)", (void*)lfs);
+
+ lfs_ssize_t res = lfs_fs_rawsize(lfs);
+
+ LFS_TRACE("lfs_fs_size -> %"PRId32, res);
+ LFS_UNLOCK(lfs->cfg);
+ return res;
+}
+
+int lfs_fs_traverse(lfs_t *lfs, int (*cb)(void *, lfs_block_t), void *data) {
+ int err = LFS_LOCK(lfs->cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_fs_traverse(%p, %p, %p)",
+ (void*)lfs, (void*)(uintptr_t)cb, data);
+
+ err = lfs_fs_rawtraverse(lfs, cb, data, true);
+
+ LFS_TRACE("lfs_fs_traverse -> %d", err);
+ LFS_UNLOCK(lfs->cfg);
+ return err;
+}
+
+#ifdef LFS_MIGRATE
+int lfs_migrate(lfs_t *lfs, const struct lfs_config *cfg) {
+ int err = LFS_LOCK(cfg);
+ if (err) {
+ return err;
+ }
+ LFS_TRACE("lfs_migrate(%p, %p {.context=%p, "
+ ".read=%p, .prog=%p, .erase=%p, .sync=%p, "
+ ".read_size=%"PRIu32", .prog_size=%"PRIu32", "
+ ".block_size=%"PRIu32", .block_count=%"PRIu32", "
+ ".block_cycles=%"PRIu32", .cache_size=%"PRIu32", "
+ ".lookahead_size=%"PRIu32", .read_buffer=%p, "
+ ".prog_buffer=%p, .lookahead_buffer=%p, "
+ ".name_max=%"PRIu32", .file_max=%"PRIu32", "
+ ".attr_max=%"PRIu32"})",
+ (void*)lfs, (void*)cfg, cfg->context,
+ (void*)(uintptr_t)cfg->read, (void*)(uintptr_t)cfg->prog,
+ (void*)(uintptr_t)cfg->erase, (void*)(uintptr_t)cfg->sync,
+ cfg->read_size, cfg->prog_size, cfg->block_size, cfg->block_count,
+ cfg->block_cycles, cfg->cache_size, cfg->lookahead_size,
+ cfg->read_buffer, cfg->prog_buffer, cfg->lookahead_buffer,
+ cfg->name_max, cfg->file_max, cfg->attr_max);
+
+ err = lfs_rawmigrate(lfs, cfg);
+
+ LFS_TRACE("lfs_migrate -> %d", err);
+ LFS_UNLOCK(cfg);
+ return err;
+}
+#endif
+
diff --git a/components/fs/littlefs/3rdparty/lfs.h b/components/fs/littlefs/3rdparty/lfs.h
new file mode 100644
index 00000000..f4f4df09
--- /dev/null
+++ b/components/fs/littlefs/3rdparty/lfs.h
@@ -0,0 +1,696 @@
+/*
+ * The little filesystem
+ *
+ * Copyright (c) 2017, Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef LFS_H
+#define LFS_H
+
+#include
+#include
+#include "lfs_util.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#define LFS_THREADSAFE
+
+/// Version info ///
+
+// Software library version
+// Major (top-nibble), incremented on backwards incompatible changes
+// Minor (bottom-nibble), incremented on feature additions
+#define LFS_VERSION 0x00020004
+#define LFS_VERSION_MAJOR (0xffff & (LFS_VERSION >> 16))
+#define LFS_VERSION_MINOR (0xffff & (LFS_VERSION >> 0))
+
+// Version of On-disk data structures
+// Major (top-nibble), incremented on backwards incompatible changes
+// Minor (bottom-nibble), incremented on feature additions
+#define LFS_DISK_VERSION 0x00020000
+#define LFS_DISK_VERSION_MAJOR (0xffff & (LFS_DISK_VERSION >> 16))
+#define LFS_DISK_VERSION_MINOR (0xffff & (LFS_DISK_VERSION >> 0))
+
+
+/// Definitions ///
+
+// Type definitions
+typedef uint32_t lfs_size_t;
+typedef uint32_t lfs_off_t;
+
+typedef int32_t lfs_ssize_t;
+typedef int32_t lfs_soff_t;
+
+typedef uint32_t lfs_block_t;
+
+// Maximum name size in bytes, may be redefined to reduce the size of the
+// info struct. Limited to <= 1022. Stored in superblock and must be
+// respected by other littlefs drivers.
+#ifndef LFS_NAME_MAX
+#define LFS_NAME_MAX 255
+#endif
+
+// Maximum size of a file in bytes, may be redefined to limit to support other
+// drivers. Limited on disk to <= 4294967296. However, above 2147483647 the
+// functions lfs_file_seek, lfs_file_size, and lfs_file_tell will return
+// incorrect values due to using signed integers. Stored in superblock and
+// must be respected by other littlefs drivers.
+#ifndef LFS_FILE_MAX
+#define LFS_FILE_MAX 2147483647
+#endif
+
+// Maximum size of custom attributes in bytes, may be redefined, but there is
+// no real benefit to using a smaller LFS_ATTR_MAX. Limited to <= 1022.
+#ifndef LFS_ATTR_MAX
+#define LFS_ATTR_MAX 1022
+#endif
+
+// Possible error codes, these are negative to allow
+// valid positive return values
+enum lfs_error {
+ LFS_ERR_OK = 0, // No error
+ LFS_ERR_IO = -5, // Error during device operation
+ LFS_ERR_CORRUPT = -84, // Corrupted
+ LFS_ERR_NOENT = -2, // No directory entry
+ LFS_ERR_EXIST = -17, // Entry already exists
+ LFS_ERR_NOTDIR = -20, // Entry is not a dir
+ LFS_ERR_ISDIR = -21, // Entry is a dir
+ LFS_ERR_NOTEMPTY = -39, // Dir is not empty
+ LFS_ERR_BADF = -9, // Bad file number
+ LFS_ERR_FBIG = -27, // File too large
+ LFS_ERR_INVAL = -22, // Invalid parameter
+ LFS_ERR_NOSPC = -28, // No space left on device
+ LFS_ERR_NOMEM = -12, // No more memory available
+ LFS_ERR_NOATTR = -61, // No data/attr available
+ LFS_ERR_NAMETOOLONG = -36, // File name too long
+};
+
+// File types
+enum lfs_type {
+ // file types
+ LFS_TYPE_REG = 0x001,
+ LFS_TYPE_DIR = 0x002,
+
+ // internally used types
+ LFS_TYPE_SPLICE = 0x400,
+ LFS_TYPE_NAME = 0x000,
+ LFS_TYPE_STRUCT = 0x200,
+ LFS_TYPE_USERATTR = 0x300,
+ LFS_TYPE_FROM = 0x100,
+ LFS_TYPE_TAIL = 0x600,
+ LFS_TYPE_GLOBALS = 0x700,
+ LFS_TYPE_CRC = 0x500,
+
+ // internally used type specializations
+ LFS_TYPE_CREATE = 0x401,
+ LFS_TYPE_DELETE = 0x4ff,
+ LFS_TYPE_SUPERBLOCK = 0x0ff,
+ LFS_TYPE_DIRSTRUCT = 0x200,
+ LFS_TYPE_CTZSTRUCT = 0x202,
+ LFS_TYPE_INLINESTRUCT = 0x201,
+ LFS_TYPE_SOFTTAIL = 0x600,
+ LFS_TYPE_HARDTAIL = 0x601,
+ LFS_TYPE_MOVESTATE = 0x7ff,
+
+ // internal chip sources
+ LFS_FROM_NOOP = 0x000,
+ LFS_FROM_MOVE = 0x101,
+ LFS_FROM_USERATTRS = 0x102,
+};
+
+// File open flags
+enum lfs_open_flags {
+ // open flags
+ LFS_O_RDONLY = 1, // Open a file as read only
+#ifndef LFS_READONLY
+ LFS_O_WRONLY = 2, // Open a file as write only
+ LFS_O_RDWR = 3, // Open a file as read and write
+ LFS_O_CREAT = 0x0100, // Create a file if it does not exist
+ LFS_O_EXCL = 0x0200, // Fail if a file already exists
+ LFS_O_TRUNC = 0x0400, // Truncate the existing file to zero size
+ LFS_O_APPEND = 0x0800, // Move to end of file on every write
+#endif
+
+ // internally used flags
+#ifndef LFS_READONLY
+ LFS_F_DIRTY = 0x010000, // File does not match storage
+ LFS_F_WRITING = 0x020000, // File has been written since last flush
+#endif
+ LFS_F_READING = 0x040000, // File has been read since last flush
+#ifndef LFS_READONLY
+ LFS_F_ERRED = 0x080000, // An error occurred during write
+#endif
+ LFS_F_INLINE = 0x100000, // Currently inlined in directory entry
+};
+
+// File seek flags
+enum lfs_whence_flags {
+ LFS_SEEK_SET = 0, // Seek relative to an absolute position
+ LFS_SEEK_CUR = 1, // Seek relative to the current file position
+ LFS_SEEK_END = 2, // Seek relative to the end of the file
+};
+
+
+// Configuration provided during initialization of the littlefs
+struct lfs_config {
+ // Opaque user provided context that can be used to pass
+ // information to the block device operations
+ void *context;
+
+ // Read a region in a block. Negative error codes are propogated
+ // to the user.
+ int (*read)(const struct lfs_config *c, lfs_block_t block,
+ lfs_off_t off, void *buffer, lfs_size_t size);
+
+ // Program a region in a block. The block must have previously
+ // been erased. Negative error codes are propogated to the user.
+ // May return LFS_ERR_CORRUPT if the block should be considered bad.
+ int (*prog)(const struct lfs_config *c, lfs_block_t block,
+ lfs_off_t off, const void *buffer, lfs_size_t size);
+
+ // Erase a block. A block must be erased before being programmed.
+ // The state of an erased block is undefined. Negative error codes
+ // are propogated to the user.
+ // May return LFS_ERR_CORRUPT if the block should be considered bad.
+ int (*erase)(const struct lfs_config *c, lfs_block_t block);
+
+ // Sync the state of the underlying block device. Negative error codes
+ // are propogated to the user.
+ int (*sync)(const struct lfs_config *c);
+
+#ifdef LFS_THREADSAFE
+ // Lock the underlying block device. Negative error codes
+ // are propogated to the user.
+ int (*lock)(const struct lfs_config *c);
+
+ // Unlock the underlying block device. Negative error codes
+ // are propogated to the user.
+ int (*unlock)(const struct lfs_config *c);
+#endif
+
+ // Minimum size of a block read. All read operations will be a
+ // multiple of this value.
+ lfs_size_t read_size;
+
+ // Minimum size of a block program. All program operations will be a
+ // multiple of this value.
+ lfs_size_t prog_size;
+
+ // Size of an erasable block. This does not impact ram consumption and
+ // may be larger than the physical erase size. However, non-inlined files
+ // take up at minimum one block. Must be a multiple of the read
+ // and program sizes.
+ lfs_size_t block_size;
+
+ // Number of erasable blocks on the device.
+ lfs_size_t block_count;
+
+ // Number of erase cycles before littlefs evicts metadata logs and moves
+ // the metadata to another block. Suggested values are in the
+ // range 100-1000, with large values having better performance at the cost
+ // of less consistent wear distribution.
+ //
+ // Set to -1 to disable block-level wear-leveling.
+ int32_t block_cycles;
+
+ // Size of block caches. Each cache buffers a portion of a block in RAM.
+ // The littlefs needs a read cache, a program cache, and one additional
+ // cache per file. Larger caches can improve performance by storing more
+ // data and reducing the number of disk accesses. Must be a multiple of
+ // the read and program sizes, and a factor of the block size.
+ lfs_size_t cache_size;
+
+ // Size of the lookahead buffer in bytes. A larger lookahead buffer
+ // increases the number of blocks found during an allocation pass. The
+ // lookahead buffer is stored as a compact bitmap, so each byte of RAM
+ // can track 8 blocks. Must be a multiple of 8.
+ lfs_size_t lookahead_size;
+
+ // Optional statically allocated read buffer. Must be cache_size.
+ // By default lfs_malloc is used to allocate this buffer.
+ void *read_buffer;
+
+ // Optional statically allocated program buffer. Must be cache_size.
+ // By default lfs_malloc is used to allocate this buffer.
+ void *prog_buffer;
+
+ // Optional statically allocated lookahead buffer. Must be lookahead_size
+ // and aligned to a 32-bit boundary. By default lfs_malloc is used to
+ // allocate this buffer.
+ void *lookahead_buffer;
+
+ // Optional upper limit on length of file names in bytes. No downside for
+ // larger names except the size of the info struct which is controlled by
+ // the LFS_NAME_MAX define. Defaults to LFS_NAME_MAX when zero. Stored in
+ // superblock and must be respected by other littlefs drivers.
+ lfs_size_t name_max;
+
+ // Optional upper limit on files in bytes. No downside for larger files
+ // but must be <= LFS_FILE_MAX. Defaults to LFS_FILE_MAX when zero. Stored
+ // in superblock and must be respected by other littlefs drivers.
+ lfs_size_t file_max;
+
+ // Optional upper limit on custom attributes in bytes. No downside for
+ // larger attributes size but must be <= LFS_ATTR_MAX. Defaults to
+ // LFS_ATTR_MAX when zero.
+ lfs_size_t attr_max;
+
+ // Optional upper limit on total space given to metadata pairs in bytes. On
+ // devices with large blocks (e.g. 128kB) setting this to a low size (2-8kB)
+ // can help bound the metadata compaction time. Must be <= block_size.
+ // Defaults to block_size when zero.
+ lfs_size_t metadata_max;
+};
+
+// File info structure
+struct lfs_info {
+ // Type of the file, either LFS_TYPE_REG or LFS_TYPE_DIR
+ uint8_t type;
+
+ // Size of the file, only valid for REG files. Limited to 32-bits.
+ lfs_size_t size;
+
+ // Name of the file stored as a null-terminated string. Limited to
+ // LFS_NAME_MAX+1, which can be changed by redefining LFS_NAME_MAX to
+ // reduce RAM. LFS_NAME_MAX is stored in superblock and must be
+ // respected by other littlefs drivers.
+ char name[LFS_NAME_MAX+1];
+};
+
+// Custom attribute structure, used to describe custom attributes
+// committed atomically during file writes.
+struct lfs_attr {
+ // 8-bit type of attribute, provided by user and used to
+ // identify the attribute
+ uint8_t type;
+
+ // Pointer to buffer containing the attribute
+ void *buffer;
+
+ // Size of attribute in bytes, limited to LFS_ATTR_MAX
+ lfs_size_t size;
+};
+
+// Optional configuration provided during lfs_file_opencfg
+struct lfs_file_config {
+ // Optional statically allocated file buffer. Must be cache_size.
+ // By default lfs_malloc is used to allocate this buffer.
+ void *buffer;
+
+ // Optional list of custom attributes related to the file. If the file
+ // is opened with read access, these attributes will be read from disk
+ // during the open call. If the file is opened with write access, the
+ // attributes will be written to disk every file sync or close. This
+ // write occurs atomically with update to the file's contents.
+ //
+ // Custom attributes are uniquely identified by an 8-bit type and limited
+ // to LFS_ATTR_MAX bytes. When read, if the stored attribute is smaller
+ // than the buffer, it will be padded with zeros. If the stored attribute
+ // is larger, then it will be silently truncated. If the attribute is not
+ // found, it will be created implicitly.
+ struct lfs_attr *attrs;
+
+ // Number of custom attributes in the list
+ lfs_size_t attr_count;
+};
+
+
+/// internal littlefs data structures ///
+typedef struct lfs_cache {
+ lfs_block_t block;
+ lfs_off_t off;
+ lfs_size_t size;
+ uint8_t *buffer;
+} lfs_cache_t;
+
+typedef struct lfs_mdir {
+ lfs_block_t pair[2];
+ uint32_t rev;
+ lfs_off_t off;
+ uint32_t etag;
+ uint16_t count;
+ bool erased;
+ bool split;
+ lfs_block_t tail[2];
+} lfs_mdir_t;
+
+// littlefs directory type
+typedef struct lfs_dir {
+ struct lfs_dir *next;
+ uint16_t id;
+ uint8_t type;
+ lfs_mdir_t m;
+
+ lfs_off_t pos;
+ lfs_block_t head[2];
+} lfs_dir_t;
+
+// littlefs file type
+typedef struct lfs_file {
+ struct lfs_file *next;
+ uint16_t id;
+ uint8_t type;
+ lfs_mdir_t m;
+
+ struct lfs_ctz {
+ lfs_block_t head;
+ lfs_size_t size;
+ } ctz;
+
+ uint32_t flags;
+ lfs_off_t pos;
+ lfs_block_t block;
+ lfs_off_t off;
+ lfs_cache_t cache;
+
+ const struct lfs_file_config *cfg;
+} lfs_file_t;
+
+typedef struct lfs_superblock {
+ uint32_t version;
+ lfs_size_t block_size;
+ lfs_size_t block_count;
+ lfs_size_t name_max;
+ lfs_size_t file_max;
+ lfs_size_t attr_max;
+} lfs_superblock_t;
+
+typedef struct lfs_gstate {
+ uint32_t tag;
+ lfs_block_t pair[2];
+} lfs_gstate_t;
+
+// The littlefs filesystem type
+typedef struct lfs {
+ lfs_cache_t rcache;
+ lfs_cache_t pcache;
+
+ lfs_block_t root[2];
+ struct lfs_mlist {
+ struct lfs_mlist *next;
+ uint16_t id;
+ uint8_t type;
+ lfs_mdir_t m;
+ } *mlist;
+ uint32_t seed;
+
+ lfs_gstate_t gstate;
+ lfs_gstate_t gdisk;
+ lfs_gstate_t gdelta;
+
+ struct lfs_free {
+ lfs_block_t off;
+ lfs_block_t size;
+ lfs_block_t i;
+ lfs_block_t ack;
+ uint32_t *buffer;
+ } free;
+
+ const struct lfs_config *cfg;
+ lfs_size_t name_max;
+ lfs_size_t file_max;
+ lfs_size_t attr_max;
+
+#ifdef LFS_MIGRATE
+ struct lfs1 *lfs1;
+#endif
+} lfs_t;
+
+
+/// Filesystem functions ///
+
+#ifndef LFS_READONLY
+// Format a block device with the littlefs
+//
+// Requires a littlefs object and config struct. This clobbers the littlefs
+// object, and does not leave the filesystem mounted. The config struct must
+// be zeroed for defaults and backwards compatibility.
+//
+// Returns a negative error code on failure.
+int lfs_format(lfs_t *lfs, const struct lfs_config *config);
+#endif
+
+// Mounts a littlefs
+//
+// Requires a littlefs object and config struct. Multiple filesystems
+// may be mounted simultaneously with multiple littlefs objects. Both
+// lfs and config must be allocated while mounted. The config struct must
+// be zeroed for defaults and backwards compatibility.
+//
+// Returns a negative error code on failure.
+int lfs_mount(lfs_t *lfs, const struct lfs_config *config);
+
+// Unmounts a littlefs
+//
+// Does nothing besides releasing any allocated resources.
+// Returns a negative error code on failure.
+int lfs_unmount(lfs_t *lfs);
+
+/// General operations ///
+
+#ifndef LFS_READONLY
+// Removes a file or directory
+//
+// If removing a directory, the directory must be empty.
+// Returns a negative error code on failure.
+int lfs_remove(lfs_t *lfs, const char *path);
+#endif
+
+#ifndef LFS_READONLY
+// Rename or move a file or directory
+//
+// If the destination exists, it must match the source in type.
+// If the destination is a directory, the directory must be empty.
+//
+// Returns a negative error code on failure.
+int lfs_rename(lfs_t *lfs, const char *oldpath, const char *newpath);
+#endif
+
+// Find info about a file or directory
+//
+// Fills out the info structure, based on the specified file or directory.
+// Returns a negative error code on failure.
+int lfs_stat(lfs_t *lfs, const char *path, struct lfs_info *info);
+
+// Get a custom attribute
+//
+// Custom attributes are uniquely identified by an 8-bit type and limited
+// to LFS_ATTR_MAX bytes. When read, if the stored attribute is smaller than
+// the buffer, it will be padded with zeros. If the stored attribute is larger,
+// then it will be silently truncated. If no attribute is found, the error
+// LFS_ERR_NOATTR is returned and the buffer is filled with zeros.
+//
+// Returns the size of the attribute, or a negative error code on failure.
+// Note, the returned size is the size of the attribute on disk, irrespective
+// of the size of the buffer. This can be used to dynamically allocate a buffer
+// or check for existance.
+lfs_ssize_t lfs_getattr(lfs_t *lfs, const char *path,
+ uint8_t type, void *buffer, lfs_size_t size);
+
+#ifndef LFS_READONLY
+// Set custom attributes
+//
+// Custom attributes are uniquely identified by an 8-bit type and limited
+// to LFS_ATTR_MAX bytes. If an attribute is not found, it will be
+// implicitly created.
+//
+// Returns a negative error code on failure.
+int lfs_setattr(lfs_t *lfs, const char *path,
+ uint8_t type, const void *buffer, lfs_size_t size);
+#endif
+
+#ifndef LFS_READONLY
+// Removes a custom attribute
+//
+// If an attribute is not found, nothing happens.
+//
+// Returns a negative error code on failure.
+int lfs_removeattr(lfs_t *lfs, const char *path, uint8_t type);
+#endif
+
+
+/// File operations ///
+
+// Open a file
+//
+// The mode that the file is opened in is determined by the flags, which
+// are values from the enum lfs_open_flags that are bitwise-ored together.
+//
+// Returns a negative error code on failure.
+int lfs_file_open(lfs_t *lfs, lfs_file_t *file,
+ const char *path, int flags);
+
+// Open a file with extra configuration
+//
+// The mode that the file is opened in is determined by the flags, which
+// are values from the enum lfs_open_flags that are bitwise-ored together.
+//
+// The config struct provides additional config options per file as described
+// above. The config struct must be allocated while the file is open, and the
+// config struct must be zeroed for defaults and backwards compatibility.
+//
+// Returns a negative error code on failure.
+int lfs_file_opencfg(lfs_t *lfs, lfs_file_t *file,
+ const char *path, int flags,
+ const struct lfs_file_config *config);
+
+// Close a file
+//
+// Any pending writes are written out to storage as though
+// sync had been called and releases any allocated resources.
+//
+// Returns a negative error code on failure.
+int lfs_file_close(lfs_t *lfs, lfs_file_t *file);
+
+// Synchronize a file on storage
+//
+// Any pending writes are written out to storage.
+// Returns a negative error code on failure.
+int lfs_file_sync(lfs_t *lfs, lfs_file_t *file);
+
+// Read data from file
+//
+// Takes a buffer and size indicating where to store the read data.
+// Returns the number of bytes read, or a negative error code on failure.
+lfs_ssize_t lfs_file_read(lfs_t *lfs, lfs_file_t *file,
+ void *buffer, lfs_size_t size);
+
+#ifndef LFS_READONLY
+// Write data to file
+//
+// Takes a buffer and size indicating the data to write. The file will not
+// actually be updated on the storage until either sync or close is called.
+//
+// Returns the number of bytes written, or a negative error code on failure.
+lfs_ssize_t lfs_file_write(lfs_t *lfs, lfs_file_t *file,
+ const void *buffer, lfs_size_t size);
+#endif
+
+// Change the position of the file
+//
+// The change in position is determined by the offset and whence flag.
+// Returns the new position of the file, or a negative error code on failure.
+lfs_soff_t lfs_file_seek(lfs_t *lfs, lfs_file_t *file,
+ lfs_soff_t off, int whence);
+
+#ifndef LFS_READONLY
+// Truncates the size of the file to the specified size
+//
+// Returns a negative error code on failure.
+int lfs_file_truncate(lfs_t *lfs, lfs_file_t *file, lfs_off_t size);
+#endif
+
+// Return the position of the file
+//
+// Equivalent to lfs_file_seek(lfs, file, 0, LFS_SEEK_CUR)
+// Returns the position of the file, or a negative error code on failure.
+lfs_soff_t lfs_file_tell(lfs_t *lfs, lfs_file_t *file);
+
+// Change the position of the file to the beginning of the file
+//
+// Equivalent to lfs_file_seek(lfs, file, 0, LFS_SEEK_SET)
+// Returns a negative error code on failure.
+int lfs_file_rewind(lfs_t *lfs, lfs_file_t *file);
+
+// Return the size of the file
+//
+// Similar to lfs_file_seek(lfs, file, 0, LFS_SEEK_END)
+// Returns the size of the file, or a negative error code on failure.
+lfs_soff_t lfs_file_size(lfs_t *lfs, lfs_file_t *file);
+
+
+/// Directory operations ///
+
+#ifndef LFS_READONLY
+// Create a directory
+//
+// Returns a negative error code on failure.
+int lfs_mkdir(lfs_t *lfs, const char *path);
+#endif
+
+// Open a directory
+//
+// Once open a directory can be used with read to iterate over files.
+// Returns a negative error code on failure.
+int lfs_dir_open(lfs_t *lfs, lfs_dir_t *dir, const char *path);
+
+// Close a directory
+//
+// Releases any allocated resources.
+// Returns a negative error code on failure.
+int lfs_dir_close(lfs_t *lfs, lfs_dir_t *dir);
+
+// Read an entry in the directory
+//
+// Fills out the info structure, based on the specified file or directory.
+// Returns a positive value on success, 0 at the end of directory,
+// or a negative error code on failure.
+int lfs_dir_read(lfs_t *lfs, lfs_dir_t *dir, struct lfs_info *info);
+
+// Change the position of the directory
+//
+// The new off must be a value previous returned from tell and specifies
+// an absolute offset in the directory seek.
+//
+// Returns a negative error code on failure.
+int lfs_dir_seek(lfs_t *lfs, lfs_dir_t *dir, lfs_off_t off);
+
+// Return the position of the directory
+//
+// The returned offset is only meant to be consumed by seek and may not make
+// sense, but does indicate the current position in the directory iteration.
+//
+// Returns the position of the directory, or a negative error code on failure.
+lfs_soff_t lfs_dir_tell(lfs_t *lfs, lfs_dir_t *dir);
+
+// Change the position of the directory to the beginning of the directory
+//
+// Returns a negative error code on failure.
+int lfs_dir_rewind(lfs_t *lfs, lfs_dir_t *dir);
+
+
+/// Filesystem-level filesystem operations
+
+// Finds the current size of the filesystem
+//
+// Note: Result is best effort. If files share COW structures, the returned
+// size may be larger than the filesystem actually is.
+//
+// Returns the number of allocated blocks, or a negative error code on failure.
+lfs_ssize_t lfs_fs_size(lfs_t *lfs);
+
+// Traverse through all blocks in use by the filesystem
+//
+// The provided callback will be called with each block address that is
+// currently in use by the filesystem. This can be used to determine which
+// blocks are in use or how much of the storage is available.
+//
+// Returns a negative error code on failure.
+int lfs_fs_traverse(lfs_t *lfs, int (*cb)(void*, lfs_block_t), void *data);
+
+#ifndef LFS_READONLY
+#ifdef LFS_MIGRATE
+// Attempts to migrate a previous version of littlefs
+//
+// Behaves similarly to the lfs_format function. Attempts to mount
+// the previous version of littlefs and update the filesystem so it can be
+// mounted with the current version of littlefs.
+//
+// Requires a littlefs object and config struct. This clobbers the littlefs
+// object, and does not leave the filesystem mounted. The config struct must
+// be zeroed for defaults and backwards compatibility.
+//
+// Returns a negative error code on failure.
+int lfs_migrate(lfs_t *lfs, const struct lfs_config *cfg);
+#endif
+#endif
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
diff --git a/components/fs/littlefs/3rdparty/lfs_util.c b/components/fs/littlefs/3rdparty/lfs_util.c
new file mode 100644
index 00000000..0b60e3b4
--- /dev/null
+++ b/components/fs/littlefs/3rdparty/lfs_util.c
@@ -0,0 +1,33 @@
+/*
+ * lfs util functions
+ *
+ * Copyright (c) 2017, Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include "lfs_util.h"
+
+// Only compile if user does not provide custom config
+#ifndef LFS_CONFIG
+
+
+// Software CRC implementation with small lookup table
+uint32_t lfs_crc(uint32_t crc, const void *buffer, size_t size) {
+ static const uint32_t rtable[16] = {
+ 0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac,
+ 0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
+ 0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c,
+ 0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c,
+ };
+
+ const uint8_t *data = buffer;
+
+ for (size_t i = 0; i < size; i++) {
+ crc = (crc >> 4) ^ rtable[(crc ^ (data[i] >> 0)) & 0xf];
+ crc = (crc >> 4) ^ rtable[(crc ^ (data[i] >> 4)) & 0xf];
+ }
+
+ return crc;
+}
+
+
+#endif
diff --git a/components/fs/littlefs/3rdparty/lfs_util.h b/components/fs/littlefs/3rdparty/lfs_util.h
new file mode 100644
index 00000000..21b599ae
--- /dev/null
+++ b/components/fs/littlefs/3rdparty/lfs_util.h
@@ -0,0 +1,246 @@
+/*
+ * lfs utility functions
+ *
+ * Copyright (c) 2017, Arm Limited. All rights reserved.
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef LFS_UTIL_H
+#define LFS_UTIL_H
+
+// Users can override lfs_util.h with their own configuration by defining
+// LFS_CONFIG as a header file to include (-DLFS_CONFIG=lfs_config.h).
+//
+// If LFS_CONFIG is used, none of the default utils will be emitted and must be
+// provided by the config file. To start, I would suggest copying lfs_util.h
+// and modifying as needed.
+#ifdef LFS_CONFIG
+#define LFS_STRINGIZE(x) LFS_STRINGIZE2(x)
+#define LFS_STRINGIZE2(x) #x
+#include LFS_STRINGIZE(LFS_CONFIG)
+#else
+
+// System includes
+#include
+#include
+#include
+#include
+
+#ifndef LFS_NO_MALLOC
+#include "tos_k.h"
+#endif
+#ifndef LFS_NO_ASSERT
+#include
+#endif
+#if !defined(LFS_NO_DEBUG) || \
+ !defined(LFS_NO_WARN) || \
+ !defined(LFS_NO_ERROR) || \
+ defined(LFS_YES_TRACE)
+#include
+#endif
+
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+// Macros, may be replaced by system specific wrappers. Arguments to these
+// macros must not have side-effects as the macros can be removed for a smaller
+// code footprint
+
+// Logging functions
+#ifndef LFS_TRACE
+#ifdef LFS_YES_TRACE
+#define LFS_TRACE_(fmt, ...) \
+ printf("%s:%d:trace: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
+#define LFS_TRACE(...) LFS_TRACE_(__VA_ARGS__, "")
+#else
+#define LFS_TRACE(...)
+#endif
+#endif
+
+#ifndef LFS_DEBUG
+#ifndef LFS_NO_DEBUG
+#define LFS_DEBUG_(fmt, ...) \
+ printf("%s:%d:debug: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
+#define LFS_DEBUG(...) LFS_DEBUG_(__VA_ARGS__, "")
+#else
+#define LFS_DEBUG(...)
+#endif
+#endif
+
+#ifndef LFS_WARN
+#ifndef LFS_NO_WARN
+#define LFS_WARN_(fmt, ...) \
+ printf("%s:%d:warn: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
+#define LFS_WARN(...) LFS_WARN_(__VA_ARGS__, "")
+#else
+#define LFS_WARN(...)
+#endif
+#endif
+
+#ifndef LFS_ERROR
+#ifndef LFS_NO_ERROR
+#define LFS_ERROR_(fmt, ...) \
+ printf("%s:%d:error: " fmt "%s\n", __FILE__, __LINE__, __VA_ARGS__)
+#define LFS_ERROR(...) LFS_ERROR_(__VA_ARGS__, "")
+#else
+#define LFS_ERROR(...)
+#endif
+#endif
+
+// Runtime assertions
+#ifndef LFS_ASSERT
+#ifndef LFS_NO_ASSERT
+#define LFS_ASSERT(test) assert(test)
+#else
+#define LFS_ASSERT(test)
+#endif
+#endif
+
+
+// Builtin functions, these may be replaced by more efficient
+// toolchain-specific implementations. LFS_NO_INTRINSICS falls back to a more
+// expensive basic C implementation for debugging purposes
+
+// Min/max functions for unsigned 32-bit numbers
+static inline uint32_t lfs_max(uint32_t a, uint32_t b) {
+ return (a > b) ? a : b;
+}
+
+static inline uint32_t lfs_min(uint32_t a, uint32_t b) {
+ return (a < b) ? a : b;
+}
+
+// Align to nearest multiple of a size
+static inline uint32_t lfs_aligndown(uint32_t a, uint32_t alignment) {
+ return a - (a % alignment);
+}
+
+static inline uint32_t lfs_alignup(uint32_t a, uint32_t alignment) {
+ return lfs_aligndown(a + alignment-1, alignment);
+}
+
+// Find the smallest power of 2 greater than or equal to a
+static inline uint32_t lfs_npw2(uint32_t a) {
+#if !defined(LFS_NO_INTRINSICS) && (defined(__GNUC__) || defined(__CC_ARM))
+ return 32 - __builtin_clz(a-1);
+#else
+ uint32_t r = 0;
+ uint32_t s;
+ a -= 1;
+ s = (a > 0xffff) << 4; a >>= s; r |= s;
+ s = (a > 0xff ) << 3; a >>= s; r |= s;
+ s = (a > 0xf ) << 2; a >>= s; r |= s;
+ s = (a > 0x3 ) << 1; a >>= s; r |= s;
+ return (r | (a >> 1)) + 1;
+#endif
+}
+
+// Count the number of trailing binary zeros in a
+// lfs_ctz(0) may be undefined
+static inline uint32_t lfs_ctz(uint32_t a) {
+#if !defined(LFS_NO_INTRINSICS) && defined(__GNUC__)
+ return __builtin_ctz(a);
+#else
+ return lfs_npw2((a & -a) + 1) - 1;
+#endif
+}
+
+// Count the number of binary ones in a
+static inline uint32_t lfs_popc(uint32_t a) {
+#if !defined(LFS_NO_INTRINSICS) && (defined(__GNUC__) || defined(__CC_ARM))
+ return __builtin_popcount(a);
+#else
+ a = a - ((a >> 1) & 0x55555555);
+ a = (a & 0x33333333) + ((a >> 2) & 0x33333333);
+ return (((a + (a >> 4)) & 0xf0f0f0f) * 0x1010101) >> 24;
+#endif
+}
+
+// Find the sequence comparison of a and b, this is the distance
+// between a and b ignoring overflow
+static inline int lfs_scmp(uint32_t a, uint32_t b) {
+ return (int)(unsigned)(a - b);
+}
+
+// Convert between 32-bit little-endian and native order
+static inline uint32_t lfs_fromle32(uint32_t a) {
+#if !defined(LFS_NO_INTRINSICS) && ( \
+ (defined( BYTE_ORDER ) && defined( ORDER_LITTLE_ENDIAN ) && BYTE_ORDER == ORDER_LITTLE_ENDIAN ) || \
+ (defined(__BYTE_ORDER ) && defined(__ORDER_LITTLE_ENDIAN ) && __BYTE_ORDER == __ORDER_LITTLE_ENDIAN ) || \
+ (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
+ return a;
+#elif !defined(LFS_NO_INTRINSICS) && ( \
+ (defined( BYTE_ORDER ) && defined( ORDER_BIG_ENDIAN ) && BYTE_ORDER == ORDER_BIG_ENDIAN ) || \
+ (defined(__BYTE_ORDER ) && defined(__ORDER_BIG_ENDIAN ) && __BYTE_ORDER == __ORDER_BIG_ENDIAN ) || \
+ (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
+ return __builtin_bswap32(a);
+#else
+ return (((uint8_t*)&a)[0] << 0) |
+ (((uint8_t*)&a)[1] << 8) |
+ (((uint8_t*)&a)[2] << 16) |
+ (((uint8_t*)&a)[3] << 24);
+#endif
+}
+
+static inline uint32_t lfs_tole32(uint32_t a) {
+ return lfs_fromle32(a);
+}
+
+// Convert between 32-bit big-endian and native order
+static inline uint32_t lfs_frombe32(uint32_t a) {
+#if !defined(LFS_NO_INTRINSICS) && ( \
+ (defined( BYTE_ORDER ) && defined( ORDER_LITTLE_ENDIAN ) && BYTE_ORDER == ORDER_LITTLE_ENDIAN ) || \
+ (defined(__BYTE_ORDER ) && defined(__ORDER_LITTLE_ENDIAN ) && __BYTE_ORDER == __ORDER_LITTLE_ENDIAN ) || \
+ (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
+ return __builtin_bswap32(a);
+#elif !defined(LFS_NO_INTRINSICS) && ( \
+ (defined( BYTE_ORDER ) && defined( ORDER_BIG_ENDIAN ) && BYTE_ORDER == ORDER_BIG_ENDIAN ) || \
+ (defined(__BYTE_ORDER ) && defined(__ORDER_BIG_ENDIAN ) && __BYTE_ORDER == __ORDER_BIG_ENDIAN ) || \
+ (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
+ return a;
+#else
+ return (((uint8_t*)&a)[0] << 24) |
+ (((uint8_t*)&a)[1] << 16) |
+ (((uint8_t*)&a)[2] << 8) |
+ (((uint8_t*)&a)[3] << 0);
+#endif
+}
+
+static inline uint32_t lfs_tobe32(uint32_t a) {
+ return lfs_frombe32(a);
+}
+
+// Calculate CRC-32 with polynomial = 0x04c11db7
+uint32_t lfs_crc(uint32_t crc, const void *buffer, size_t size);
+
+// Allocate memory, only used if buffers are not provided to littlefs
+// Note, memory must be 64-bit aligned
+static inline void *lfs_malloc(size_t size) {
+#if !defined(LFS_NO_MALLOC) && (TOS_CFG_MMHEAP_EN == 1)
+ return tos_mmheap_alloc(size);
+#else
+ (void)size;
+ return NULL;
+#endif
+}
+
+// Deallocate memory, only used if buffers are not provided to littlefs
+static inline void lfs_free(void *p) {
+#if !defined(LFS_NO_MALLOC) && (TOS_CFG_MMHEAP_EN == 1)
+ tos_mmheap_free(p);
+#else
+ (void)p;
+#endif
+}
+
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
+#endif