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