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
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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 + 0 + 0 + 1 + 1 + .\output\ + 1 + 0 + 0 + + 0 + 0 + + + 0 + 0 + 0 + 0 + + + 0 + 0 + + + 0 + 0 + 0 + 0 + + + 0 + 0 + + + 0 + 0 + 0 + 0 + + 1 + + + + 0 + 0 + 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 + 0 + 1 + 1 + 0 + 1 + 0 + 0 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 0 + "Cortex-M7" + + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 3 + 0 + 0 + 0 + 0 + 1 + 1 + 0 + 0 + 0 + 3 + 4 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x20000 + + + 1 + 0x60000000 + 0x4000000 + + + 1 + 0x20200000 + 0x40000 + + + 1 + 0x60000000 + 0x4000000 + + + 1 + 0x0 + 0x0 + + + 1 + 0x0 + 0x0 + + + 1 + 0x0 + 0x0 + + + 1 + 0x0 + 0x0 + + + 0 + 0x20200000 + 0x40000 + + + 0 + 0x80000000 + 0x2000000 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x20000 + + + 0 + 0x20000000 + 0x20000 + + + + + + 0 + 7 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 3 + 0 + 0 + 0 + 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 + 0 + 0 + + 0 + 0 + + + 0 + 0 + 0 + 0 + + + 0 + 0 + + + 0 + 0 + 0 + 0 + + + 0 + 0 + + + 0 + 0 + 0 + 0 + + 1 + + + + 0 + 0 + 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 + 1 + 1 + 4096 + + 1 + BIN\UL2CM3.DLL + "" () + + + + + 0 + + + + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 0 + 1 + 0 + 0 + 0 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 0 + "Cortex-M7" + + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 3 + 0 + 0 + 0 + 0 + 1 + 1 + 0 + 0 + 0 + 3 + 4 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x20000 + + + 1 + 0x60000000 + 0x4000000 + + + 1 + 0x20200000 + 0x40000 + + + 1 + 0x60000000 + 0x4000000 + + + 1 + 0x0 + 0x0 + + + 1 + 0x0 + 0x0 + + + 1 + 0x0 + 0x0 + + + 1 + 0x0 + 0x0 + + + 0 + 0x20200000 + 0x40000 + + + 0 + 0x80000000 + 0x2000000 + + + 0 + 0x0 + 0x0 + + + 0 + 0x0 + 0x20000 + + + 0 + 0x20000000 + 0x20000 + + + + + + 0 + 7 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 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 + + + 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 + + + + + + + + + + + + + + + + + <Project Info> + + + + + + 0 + 1 + + + + + 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