add cortex-v7a support
How To Run:
see TencentOS-tiny\board\ALPHA_I.MX_emmc_256ddr\README.md
TODO Next:
1. VFP support
2. fault diagnosis support
3. qemu vexpress ca9 support
4. raspberry pi support
5. SMP support
This commit is contained in:
daishengdong
239
board/ALPHA_I.MX_emmc_256ddr/bsp/touchscreen/bsp_touchscreen.c
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239
board/ALPHA_I.MX_emmc_256ddr/bsp/touchscreen/bsp_touchscreen.c
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/***************************************************************
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Copyright © zuozhongkai Co., Ltd. 1998-2019. All rights reserved.
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文件名 : bsp_touchscreen.c
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作者 : 左忠凯
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版本 : V1.0
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描述 : 触摸屏驱动文件，触摸芯片为FT5426
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其他 : 无
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论坛 : www.openedv.com
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日志 : 初版V1.0 2019/1/21 左忠凯创建
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***************************************************************/
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#include "bsp_touchscreen.h"
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#include "bsp_i2c.h"
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#include "bsp_int.h"
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#include "bsp_delay.h"
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#include "printf.h"
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struct ft5426_dev_struc ft5426_dev;
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/*
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* @description : 初始化触摸屏，其实就是初始化FT5426
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* @param : 无
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* @return : 无
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*/
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void touchscreen_init(void)
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{
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unsigned char reg_value[2];
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ft5426_dev.initfalg = FT5426_INIT_NOTFINISHED;
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/* 1、初始化IIC2 IO
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* I2C2_SCL -> UART5_TXD
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* I2C2_SDA -> UART5_RXD
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*/
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IOMUXC_SetPinMux(IOMUXC_UART5_TX_DATA_I2C2_SCL,1);
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IOMUXC_SetPinMux(IOMUXC_UART5_RX_DATA_I2C2_SDA,1);
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/* 配置I2C2 IO属性
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*bit 16:0 HYS关闭
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*bit [15:14]: 1 默认47K上拉
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*bit [13]: 1 pull功能
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*bit [12]: 1 pull/keeper使能
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*bit [11]: 0 关闭开路输出
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*bit [7:6]: 10 速度100Mhz
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*bit [5:3]: 110 驱动能力为R0/6
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*bit [0]: 1 高转换率
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*/
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IOMUXC_SetPinConfig(IOMUXC_UART5_TX_DATA_I2C2_SCL,0x70B0);
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IOMUXC_SetPinConfig(IOMUXC_UART5_RX_DATA_I2C2_SDA,0X70B0);
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/* 2、初始化触摸屏中断IO和复位IO */
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gpio_pin_config_t ctintpin_config;
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IOMUXC_SetPinMux(IOMUXC_GPIO1_IO09_GPIO1_IO09,0); /* 复用为GPIO1_IO9 */
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IOMUXC_SetPinMux(IOMUXC_SNVS_SNVS_TAMPER9_GPIO5_IO09,0);/* 复用为GPIO5_IO9 */
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IOMUXC_SetPinConfig(IOMUXC_GPIO1_IO09_GPIO1_IO09,0xF080);
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IOMUXC_SetPinConfig(IOMUXC_SNVS_SNVS_TAMPER9_GPIO5_IO09,0X10B0);
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/* 中断IO初始化 */
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ctintpin_config.direction = kGPIO_DigitalInput;
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ctintpin_config.interruptMode = kGPIO_IntRisingOrFallingEdge;
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gpio_init(GPIO1, 9, &ctintpin_config);
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GIC_EnableIRQ(GPIO1_Combined_0_15_IRQn); /* 使能GIC中对应的中断 */
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system_register_irqhandler(GPIO1_Combined_0_15_IRQn, (system_irq_handler_t)gpio1_io9_irqhandler, NULL); /* 注册中断服务函数 */
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gpio_enableint(GPIO1, 9); /* 使能GPIO1_IO18的中断功能 */
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/* 复位IO初始化 */
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ctintpin_config.direction=kGPIO_DigitalOutput;
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ctintpin_config.interruptMode=kGPIO_NoIntmode;
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ctintpin_config.outputLogic=1;
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gpio_init(GPIO5, 9, &ctintpin_config);
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/* 3、初始化I2C */
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i2c_init(I2C2);
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/* 4、初始化FT5426 */
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gpio_pinwrite(GPIO5, 9, 0); /* 复位FT5426 */
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delayms(20);
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gpio_pinwrite(GPIO5, 9, 1); /* 停止复位FT5426 */
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delayms(20);
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ft5426_write_byte(FT5426_ADDR, FT5426_DEVICE_MODE, 0); /* 进入正常模式 */
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ft5426_write_byte(FT5426_ADDR, FT5426_IDG_MODE, 1); /* FT5426中断模式 */
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ft426_read_len(FT5426_ADDR, FT5426_IDGLIB_VERSION, 2, reg_value);
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printf("Touch Frimware Version:%#X\r\n", ((unsigned short)reg_value[0] << 8) + reg_value[1]);
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ft5426_dev.initfalg = FT5426_INIT_FINISHED; /* 标记FT5426初始化完成 */
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ft5426_dev.intflag = 0;
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}
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/*
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* @description : GPIO1_IO9最终的中断处理函数
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* @param : 无
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* @return : 无
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*/
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void gpio1_io9_irqhandler(void)
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{
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if(ft5426_dev.initfalg == FT5426_INIT_FINISHED)
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{
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//ft5426_dev.intflag = 1;
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ft5426_read_tpcoord();
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}
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gpio_clearintflags(GPIO1, 9); /* 清除中断标志位 */
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}
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/*
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* @description : 向FT5429写入数据
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* @param - addr: 设备地址
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* @param - reg : 要写入的寄存器
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* @param - data: 要写入的数据
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* @return : 操作结果
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*/
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unsigned char ft5426_write_byte(unsigned char addr,unsigned char reg, unsigned char data)
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{
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unsigned char status=0;
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unsigned char writedata=data;
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struct i2c_transfer masterXfer;
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/* 配置I2C xfer结构体 */
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masterXfer.slaveAddress = addr; /* 设备地址 */
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masterXfer.direction = kI2C_Write; /* 写入数据 */
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masterXfer.subaddress = reg; /* 要写入的寄存器地址 */
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masterXfer.subaddressSize = 1; /* 地址长度一个字节 */
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masterXfer.data = &writedata; /* 要写入的数据 */
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masterXfer.dataSize = 1; /* 写入数据长度1个字节 */
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if(i2c_master_transfer(I2C2, &masterXfer))
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status=1;
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return status;
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}
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/*
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* @description : 从FT5426读取一个字节的数据
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* @param - addr: 设备地址
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* @param - reg : 要读取的寄存器
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* @return : 读取到的数据。
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*/
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unsigned char ft5426_read_byte(unsigned char addr,unsigned char reg)
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{
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unsigned char val=0;
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struct i2c_transfer masterXfer;
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masterXfer.slaveAddress = addr; /* 设备地址 */
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masterXfer.direction = kI2C_Read; /* 读取数据 */
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masterXfer.subaddress = reg; /* 要读取的寄存器地址 */
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masterXfer.subaddressSize = 1; /* 地址长度一个字节 */
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masterXfer.data = &val; /* 接收数据缓冲区 */
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masterXfer.dataSize = 1; /* 读取数据长度1个字节 */
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i2c_master_transfer(I2C2, &masterXfer);
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return val;
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}
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/*
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* @description : 从FT5429读取多个字节的数据
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* @param - addr: 设备地址
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* @param - reg : 要读取的开始寄存器地址
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* @param - len : 要读取的数据长度.
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* @param - buf : 读取到的数据缓冲区
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* @return : 无
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*/
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void ft426_read_len(unsigned char addr,unsigned char reg,unsigned char len,unsigned char *buf)
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{
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struct i2c_transfer masterXfer;
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masterXfer.slaveAddress = addr; /* 设备地址 */
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masterXfer.direction = kI2C_Read; /* 读取数据 */
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masterXfer.subaddress = reg; /* 要读取的寄存器地址 */
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masterXfer.subaddressSize = 1; /* 地址长度一个字节 */
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masterXfer.data = buf; /* 接收数据缓冲区 */
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masterXfer.dataSize = len; /* 读取数据长度1个字节 */
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i2c_master_transfer(I2C2, &masterXfer);
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}
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/*
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* @description : 读取当前触摸点个数
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* @param : 无
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* @return : 无
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*/
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void ft5426_read_tpnum(void)
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{
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ft5426_dev.point_num = ft5426_read_byte(FT5426_ADDR, FT5426_TD_STATUS);
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}
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/*
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* @description : 读取当前所有触摸点的坐标
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* @param : 无
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* @return : 无
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*/
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void ft5426_read_tpcoord(void)
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{
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unsigned char i = 0;
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unsigned char type = 0;
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//unsigned char id = 0;
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unsigned char pointbuf[FT5426_XYCOORDREG_NUM];
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ft5426_dev.point_num = ft5426_read_byte(FT5426_ADDR, FT5426_TD_STATUS);
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/*
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* 从寄存器FT5426_TOUCH1_XH开始，连续读取30个寄存器的值，这30个寄存器
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* 保存着5个点的触摸值，每个点占用6个寄存器。
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*/
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ft426_read_len(FT5426_ADDR, FT5426_TOUCH1_XH, FT5426_XYCOORDREG_NUM, pointbuf);
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for(i = 0; i < ft5426_dev.point_num ; i++)
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{
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unsigned char *buf = &pointbuf[i * 6];
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/* 以第一个触摸点为例，寄存器TOUCH1_XH(地址0X03),各位描述如下：
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* bit7:6 Event flag 0:按下 1:释放 2：接触 3：没有事件
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* bit5:4 保留
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* bit3:0 X轴触摸点的11~8位。
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*/
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ft5426_dev.x[i] = ((buf[2] << 8) | buf[3]) & 0x0fff;
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ft5426_dev.y[i] = ((buf[0] << 8) | buf[1]) & 0x0fff;
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type = buf[0] >> 6; /* 获取触摸类型 */
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/* 以第一个触摸点为例，寄存器TOUCH1_YH(地址0X05),各位描述如下：
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* bit7:4 Touch ID 触摸ID，表示是哪个触摸点
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* bit3:0 Y轴触摸点的11~8位。
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*/
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//id = (buf[2] >> 4) & 0x0f;
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if(type == FT5426_TOUCH_EVENT_DOWN || type == FT5426_TOUCH_EVENT_ON )/* 按下 */
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{
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} else { /* 释放 */
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}
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}
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}
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@@ -0,0 +1,62 @@
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#ifndef _TOUCHSCREEN_H
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#define _TOUCHSCREEN_H
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/***************************************************************
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Copyright © zuozhongkai Co., Ltd. 1998-2019. All rights reserved.
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文件名 : bsp_touchscreen.c
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作者 : 左忠凯
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版本 : V1.0
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描述 : 触摸屏驱动头文件,触摸芯片为FT5426
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其他 : 无
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论坛 : www.openedv.com
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日志 : 初版V1.0 2019/1/21 左忠凯创建
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***************************************************************/
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#include "bsp.h"
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#include "bsp_gpio.h"
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/* 宏定义 */
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#define FT5426_ADDR 0X38 /* FT5426设备地址 */
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#define FT5426_DEVICE_MODE 0X00 /* 模式寄存器 */
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#define FT5426_IDGLIB_VERSION 0XA1 /* 固件版本寄存器 */
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#define FT5426_IDG_MODE 0XA4 /* 模式寄存器 */
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#define FT5426_TD_STATUS 0X02 /* 触摸状态寄存器 */
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#define FT5426_TOUCH1_XH 0X03 /* 触摸点坐标寄存器,
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* 一个触摸点用6个寄存器存储坐标数据
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*/
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#define FT5426_XYCOORDREG_NUM 30 /* 触摸点坐标寄存器数量 */
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#define FT5426_INIT_FINISHED 1 /* 触摸屏初始化完成 */
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#define FT5426_INIT_NOTFINISHED 0 /* 触摸屏初始化未完成 */
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#define FT5426_TOUCH_EVENT_DOWN 0x00 /* 按下 */
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#define FT5426_TOUCH_EVENT_UP 0x01 /* 释放 */
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#define FT5426_TOUCH_EVENT_ON 0x02 /* 接触 */
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#define FT5426_TOUCH_EVENT_RESERVED 0x03 /* 没有事件 */
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/* 触摸屏结构体 */
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struct ft5426_dev_struc
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{
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unsigned char initfalg; /* 触摸屏初始化状态 */
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unsigned char intflag; /* 标记中断有没有发生 */
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unsigned char point_num; /* 触摸点 */
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unsigned short x[5]; /* X轴坐标 */
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unsigned short y[5]; /* Y轴坐标 */
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};
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extern struct ft5426_dev_struc ft5426_dev;
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/* 函数声明 */
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void touchscreen_init(void);
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void gpio1_io9_irqhandler(void);
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unsigned char ft5426_write_byte(unsigned char addr,unsigned char reg, unsigned char data);
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unsigned char ft5426_read_byte(unsigned char addr,unsigned char reg);
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void ft426_read_len(unsigned char addr,unsigned char reg,unsigned char len,unsigned char *buf);
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void ft5426_read_tpnum(void);
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void ft5426_read_tpcoord(void);
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#endif
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