404 lines
10 KiB
C
404 lines
10 KiB
C
/**
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******************************************************************************
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* @file bsp_touch_gtxx.c
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* @brief 该文件仅仅用来读取GTxxx触摸芯片的ID号,用以区分不同的RGB屏幕
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******************************************************************************
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "./touch/bsp_touch_gtxx.h"
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#include "./touch/bsp_i2c_touch.h"
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#include "./lcd/bsp_lcd.h"
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#include "./delay/core_delay.h"
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/* 触摸IC类型默认为5寸屏的ic */
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TOUCH_IC touchIC = GT9157;
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const TOUCH_PARAM_TypeDef touch_param[TOUCH_TYPE_NUM] =
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{
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/* GT9157,5寸屏 */
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{
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.max_width = 800,
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.max_height = 480,
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.config_reg_addr = 0x8047,
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},
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/* GT911,7寸屏 */
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{
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.max_width = 800,
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.max_height = 480,
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.config_reg_addr = 0x8047,
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},
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/* GT5688,4.3寸屏 */
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{
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.max_width = 480,
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.max_height = 272,
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.config_reg_addr = 0x8050,
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},
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/* GT917S,5寸屏 */
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{
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.max_width = 800,
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.max_height = 480,
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.config_reg_addr = 0x8050,
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},
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/* GT615,7寸屏 */
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{
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.max_width = 800,
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.max_height = 480,
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.config_reg_addr = 0x8047, //该起始地址与GT911的一样
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},
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#if TOUCH_GT1151QM_LCD_4_3
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/* GT1151QM,4.3寸屏 */
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{
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.max_width = 480,
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.max_height = 272,
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.config_reg_addr = 0x8050,
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},
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#elif TOUCH_GT1151QM_LCD_5
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/* GT1151QM,5寸屏 */
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{
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.max_width = 800,
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.max_height = 480,
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.config_reg_addr = 0x8050,
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},
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#endif
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};
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static int8_t GTP_I2C_Test(void);
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/**
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* @brief 使用IIC进行数据传输
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* @param
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* @arg i2c_msg:数据传输结构体
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* @arg num:数据传输结构体的个数
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* @retval 正常完成的传输结构个数，若不正常，返回0xff
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*/
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static int I2C_Transfer( struct i2c_msg *msgs,int num)
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{
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int im = 0;
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int ret = 0;
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GTP_DEBUG_FUNC();
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for (im = 0; ret == 0 && im != num; im++)
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{
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if ((msgs[im].flags&I2C_M_RD)) //根据flag判断是读数据还是写数据
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{
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ret = I2C_ReadBytes(msgs[im].addr, msgs[im].buf, msgs[im].len); //IIC读取数据
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} else
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{
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ret = I2C_WriteBytes(msgs[im].addr, msgs[im].buf, msgs[im].len); //IIC写入数据
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}
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}
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if(ret)
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return ret;
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return im; //正常完成的传输结构个数
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}
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/**
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* @brief 从IIC设备中读取数据
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* @param
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* @arg client_addr:设备地址
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* @arg buf[0~1]: 读取数据寄存器的起始地址
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* @arg buf[2~len-1]: 存储读出来数据的缓冲buffer
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* @arg len: GTP_ADDR_LENGTH + read bytes count（寄存器地址长度+读取的数据字节数）
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* @retval i2c_msgs传输结构体的个数，2为成功，其它为失败
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*/
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static int32_t GTP_I2C_Read(uint8_t client_addr, uint8_t *buf, int32_t len)
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{
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struct i2c_msg msgs[2];
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int32_t ret=-1;
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int32_t retries = 0;
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GTP_DEBUG_FUNC();
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/*一个读数据的过程可以分为两个传输过程:
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* 1. IIC 写入 要读取的寄存器地址
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* 2. IIC 读取 数据
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* */
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msgs[0].flags = !I2C_M_RD; //写入
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msgs[0].addr = client_addr; //IIC设备地址
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msgs[0].len = GTP_ADDR_LENGTH; //寄存器地址为2字节(即写入两字节的数据)
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msgs[0].buf = &buf[0]; //buf[0~1]存储的是要读取的寄存器地址
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msgs[1].flags = I2C_M_RD; //读取
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msgs[1].addr = client_addr; //IIC设备地址
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msgs[1].len = len - GTP_ADDR_LENGTH; //要读取的数据长度
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msgs[1].buf = &buf[GTP_ADDR_LENGTH]; //buf[GTP_ADDR_LENGTH]之后的缓冲区存储读出的数据
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while(retries < 5)
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{
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ret = I2C_Transfer( msgs, 2); //调用IIC数据传输过程函数，有2个传输过程
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if(ret == 2)break;
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retries++;
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}
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if((retries >= 5))
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{
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GTP_ERROR("I2C Read: 0x%04X, %d bytes failed, errcode: %d! Process reset.", (((uint16_t)(buf[0] << 8)) | buf[1]), len-2, ret);
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}
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return ret;
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}
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/**
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* @brief 向IIC设备写入数据
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* @param
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* @arg client_addr:设备地址
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* @arg buf[0~1]: 要写入的数据寄存器的起始地址
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* @arg buf[2~len-1]: 要写入的数据
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* @arg len: GTP_ADDR_LENGTH + write bytes count（寄存器地址长度+写入的数据字节数）
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* @retval i2c_msgs传输结构体的个数，1为成功，其它为失败
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*/
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static int32_t GTP_I2C_Write(uint8_t client_addr,uint8_t *buf,int32_t len)
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{
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struct i2c_msg msg;
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int32_t ret = -1;
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int32_t retries = 0;
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GTP_DEBUG_FUNC();
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/*一个写数据的过程只需要一个传输过程:
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* 1. IIC连续 写入 数据寄存器地址及数据
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* */
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msg.flags = !I2C_M_RD; //写入
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msg.addr = client_addr; //从设备地址
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msg.len = len; //长度直接等于(寄存器地址长度+写入的数据字节数)
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msg.buf = buf; //直接连续写入缓冲区中的数据(包括了寄存器地址)
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while(retries < 5)
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{
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ret = I2C_Transfer(&msg, 1); //调用IIC数据传输过程函数，1个传输过程
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if (ret == 1)break;
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retries++;
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}
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if((retries >= 5))
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{
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GTP_ERROR("I2C Write: 0x%04X, %d bytes failed, errcode: %d! Process reset.", (((uint16_t)(buf[0] << 8)) | buf[1]), len-2, ret);
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}
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return ret;
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}
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static int32_t GTP_Get_Info(void)
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{
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uint8_t opr_buf[10] = {0};
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int32_t ret = 0;
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uint16_t abs_x_max = GTP_MAX_WIDTH;
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uint16_t abs_y_max = GTP_MAX_HEIGHT;
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uint8_t int_trigger_type = GTP_INT_TRIGGER;
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opr_buf[0] = (uint8_t)((GTP_REG_CONFIG_DATA+1) >> 8);
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opr_buf[1] = (uint8_t)((GTP_REG_CONFIG_DATA+1) & 0xFF);
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ret = GTP_I2C_Read(GTP_ADDRESS, opr_buf, 10);
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if (ret < 0)
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{
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return FAIL;
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}
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abs_x_max = (opr_buf[3] << 8) + opr_buf[2];
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abs_y_max = (opr_buf[5] << 8) + opr_buf[4];
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GTP_DEBUG("RES");
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GTP_DEBUG_ARRAY(&opr_buf[0],10);
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opr_buf[0] = (uint8_t)((GTP_REG_CONFIG_DATA+6) >> 8);
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opr_buf[1] = (uint8_t)((GTP_REG_CONFIG_DATA+6) & 0xFF);
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ret = GTP_I2C_Read(GTP_ADDRESS, opr_buf, 3);
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if (ret < 0)
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{
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return FAIL;
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}
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int_trigger_type = opr_buf[2] & 0x03;
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GTP_INFO("X_MAX = %d, Y_MAX = %d, TRIGGER = 0x%02x",
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abs_x_max,abs_y_max,int_trigger_type);
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return SUCCESS;
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}
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/* 初始化触摸芯片,然后读取触摸芯片ID以判断不同尺寸类型的屏幕
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保存当前的液晶屏类型到变量 cur_lcd */
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int32_t GTP_Init_ReadID(void)
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{
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int32_t ret = -1;
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GTP_DEBUG_FUNC();
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I2C_Touch_Init();
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ret = GTP_I2C_Test();
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if (ret < 0)
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{
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GTP_ERROR("I2C communication ERROR!");
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return ret;
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}
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HAL_Delay(100);
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//获取触摸IC的型号
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GTP_Read_Version();
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GTP_Get_Info();
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return 0;
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}
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/*******************************************************
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Function:
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Read chip version.
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Input:
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client: i2c device
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version: buffer to keep ic firmware version
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Output:
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read operation return.
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2: succeed, otherwise: failed
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*******************************************************/
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int32_t GTP_Read_Version(void)
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{
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int32_t ret = -1;
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uint8_t buf[8] = {GTP_REG_VERSION >> 8, GTP_REG_VERSION & 0xff}; //寄存器地址
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GTP_DEBUG_FUNC();
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ret = GTP_I2C_Read(GTP_ADDRESS, buf, sizeof(buf));
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if (ret < 0)
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{
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GTP_ERROR("GTP read version failed");
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return ret;
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}
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#ifdef LCD_TOUCH_IC_GT1151QM
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//GT1151QM芯片
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if (buf[2]=='1' && buf[3]=='1' && buf[4]=='5')
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{
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GTP_INFO("IC Version: %c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[7], buf[6]);
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touchIC = GT1151QM;
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#if TOUCH_GT1151QM_LCD_4_3
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cur_lcd = INCH_4_3; //设置当前的液晶屏类型
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#elif TOUCH_GT1151QM_LCD_5
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cur_lcd = INCH_5; //设置当前的液晶屏类型
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#endif
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}
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else
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{
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GTP_INFO("Unknown IC Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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}
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#else
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if (buf[4] == '1')
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{
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//GT911芯片
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if(buf[2] == '9' && buf[3] == '1' && buf[4] == '1')
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{
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GTP_INFO("IC1 Version: %c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[7], buf[6]);
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touchIC = GT911;
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/* 设置当前的液晶屏类型 */
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cur_lcd = INCH_7;
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}
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//GT9157芯片
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else
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GTP_INFO("Unknown IC Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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}
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else if (buf[4] == '5')
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{
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if( buf[2] == '9' && buf[3] == '1' && buf[4] == '5' && buf[5] == '7')
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{
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GTP_INFO("IC2 Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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touchIC = GT9157;
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/* 设置当前的液晶屏类型 */
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cur_lcd = INCH_5;
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}
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//GT615芯片
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else if( buf[2] == '6' && buf[3] == '1' && buf[4] == '5')
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{
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GTP_INFO("IC3 Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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touchIC = GT615;
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/* 设置当前的液晶屏类型 */
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cur_lcd = INCH_7;
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}
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else
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GTP_INFO("Unknown IC Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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}
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else if (buf[4] == '8')
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{
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//GT5688芯片
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if(buf[2] == '5' && buf[3] == '6' && buf[4] == '8' && buf[5] == '8')
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{
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GTP_INFO("IC4 Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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touchIC = GT5688;
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/* 设置当前的液晶屏类型 */
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cur_lcd = INCH_4_3;
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}
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else
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GTP_INFO("Unknown IC Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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}
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else if(buf[4] == '7')
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{
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//GT917S芯片
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GTP_INFO("IC5 Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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if(buf[2] == '9' && buf[3] == '1' && buf[4] == '7' && buf[5] == 'S')
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{
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touchIC = GT917S;
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/* 设置当前的液晶屏类型 */
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cur_lcd = INCH_5;
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}
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}
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else
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GTP_INFO("Unknown IC Version: %c%c%c%c_%02x%02x", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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#endif
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return ret;
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}
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/*******************************************************
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Function:
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I2c test Function.
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Input:
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client:i2c client.
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Output:
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Executive outcomes.
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2: succeed, otherwise failed.
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*******************************************************/
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static int8_t GTP_I2C_Test( void)
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{
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uint8_t test[3] = {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
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uint8_t retry = 0;
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int8_t ret = -1;
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GTP_DEBUG_FUNC();
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while(retry++ < 5)
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{
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ret = GTP_I2C_Read(GTP_ADDRESS, test, 3);
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if (ret > 0)
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{
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return ret;
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}
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GTP_ERROR("GTP i2c test failed time %d.",retry);
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}
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return ret;
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}
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