1、add i2c driver for xidatong;2、add touch driver for xidatong;3、add input device for lvgl;4、repair interrupt for m7;5、repair startup sequence for xidatong
This commit is contained in:
Wang_Weigen
@@ -0,0 +1,12 @@
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if BSP_USING_TOUCH
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config TOUCH_BUS_NAME
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string "touch bus name"
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default "touch"
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config TOUCH_DRV_NAME
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string "touch bus driver name"
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default "touch_drv"
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config TOUCH_DEVICE_NAME
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string "touch bus device name"
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default "touch_dev"
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endif
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@@ -0,0 +1,4 @@
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SRC_FILES := connect_touch.c i2c_touch.c
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include $(KERNEL_ROOT)/compiler.mk
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@@ -0,0 +1,451 @@
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/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file connect_touch.c
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* @brief support xidatong touch function and register to bus framework
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* @version 1.0
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* @author AIIT XUOS Lab
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* @date 2022-05-15
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*/
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#include <board.h>
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#include <connect_touch.h>
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#include "i2c_touch.h"
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#define LCD_HEIGHT BSP_LCD_X_MAX
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#define LCD_WIDTH BSP_LCD_Y_MAX
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#define DEFAULT_NUM 0x0D
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uint8_t CTP_CFG_GT911[] = {
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0x5B,0xE0,0x01,0x10,0x01,0x0A,0x0D,0x00,0x01,0x0A,
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0x28,0x0F,0x5A,0x3C,0x03,0x05,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x87,0x28,0x09,
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0x32,0x34,0x0C,0x08,0x00,0x00,0x00,0x02,0x02,0x1D,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x28,0x55,0x94,0xC5,0x02,0x07,0x00,0x00,0x04,
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0x8D,0x2B,0x00,0x80,0x32,0x00,0x75,0x3A,0x00,0x6C,
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0x43,0x00,0x64,0x4F,0x00,0x64,0x00,0x00,0x00,0x00,
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0xF0,0x4A,0x3A,0xFF,0xFF,0x27,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x04,0x06,0x08,0x0A,0x0C,0x0E,0x10,0x12,
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0x14,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x26,0x24,0x22,0x21,0x20,0x1F,0x1E,0x1D,
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0x0C,0x0A,0x08,0x06,0x04,0x02,0x00,0xFF,0xFF,0xFF,
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0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x81,0x01
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};
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uint8_t config[GTP_CONFIG_MAX_LENGTH + GTP_ADDR_LENGTH]
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= {GTP_REG_CONFIG_DATA >> 8, GTP_REG_CONFIG_DATA & 0xff};
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int touch_sem = 0;
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POINT Pre_Touch_Point;
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static int32_t GtpI2cWrite(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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msg.flags = !I2C_M_RD;
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msg.addr = client_addr;
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msg.len = len;
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msg.buf = buf;
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//msg.scl_rate = 300 * 1000; // for Rockchip, etc
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while(retries < 5)
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{
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ret = I2C_Transfer(&msg, 1);
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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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KPrintf("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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ret = -1;
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}
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return ret;
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}
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static int32_t GtpI2cRead(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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msgs[0].flags = !I2C_M_RD;
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msgs[0].addr = client_addr;
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msgs[0].len = GTP_ADDR_LENGTH;
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msgs[0].buf = &buf[0];
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msgs[1].flags = I2C_M_RD;
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msgs[1].addr = client_addr;
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msgs[1].len = len - GTP_ADDR_LENGTH;
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msgs[1].buf = &buf[GTP_ADDR_LENGTH];
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while(retries < 5)
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{
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ret = I2C_Transfer( msgs, 2);
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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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KPrintf("I2C Read: 0x%04X, %d bytes failed, errcode: %d! Process reset.\n", (((uint16_t)(buf[0] << 8)) | buf[1]), len-2, ret);
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ret = -1;
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}
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return ret;
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}
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static int32_t gt91xx_Config_Write_Proc()
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{
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int32_t ret = -1;
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int32_t i = 0;
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uint8_t check_sum = 0;
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int32_t retry = 0;
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uint8_t cfg_num =0x80FE - 0x8047+1 ;
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const uint8_t* cfg_info = CTP_CFG_GT911;
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uint8_t cfg_info_len = CFG_GROUP_LEN(CTP_CFG_GT911) ;
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memset(&config[GTP_ADDR_LENGTH], 0, GTP_CONFIG_MAX_LENGTH);
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memcpy(&config[GTP_ADDR_LENGTH], cfg_info,cfg_info_len);
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check_sum = 0;
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for (i = GTP_ADDR_LENGTH; i < cfg_num+GTP_ADDR_LENGTH; i++)
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{
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check_sum += config[i];
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}
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config[ cfg_num+GTP_ADDR_LENGTH] = (~check_sum) + 1; //checksum
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config[ cfg_num+GTP_ADDR_LENGTH+1] = 1; //refresh ??????
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KPrintf("Driver send config check_sum 0x%x\n",check_sum);
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for (retry = 0; retry < 5; retry++)
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{
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ret = GtpI2cWrite(GTP_ADDRESS, config , cfg_num + GTP_ADDR_LENGTH+2);
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if (ret > 0)
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{
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break;
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}
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}
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return ret;
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}
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/**
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* @brief 触屏处理函数，轮询或者在触摸中断调用
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* @param 无
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* @retval 无
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*/
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bool GetTouchEvent(POINT *touch_point,touch_event_t *touch_event)
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{
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uint8_t end_cmd[3] = {GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF, 0};
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uint8_t point_data[2 + 1 + 8 * GTP_MAX_TOUCH + 1]={GTP_READ_COOR_ADDR >> 8, GTP_READ_COOR_ADDR & 0xFF};
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uint8_t touch_num = 0;
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uint8_t finger = 0;
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static uint16_t pre_touch = 0;
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uint8_t client_addr=GTP_ADDRESS;
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uint8_t* coor_data = NULL;
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int32_t input_x = 0;
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int32_t input_y = 0;
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int32_t input_w = 0;
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int32_t ret = -1;
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ret = GtpI2cRead(client_addr, point_data, 12);//10字节寄存器加2字节地址
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if (ret < 0)
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{
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KPrintf("I2C transfer error. errno:%d\n ", ret);
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return 0;
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}
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finger = point_data[GTP_ADDR_LENGTH];//状态寄存器数据
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if (finger == 0x00) //没有数据，退出
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{
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return 0;
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}
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if((finger & 0x80) == 0)//判断buffer status位
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{
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goto exit_work_func;//坐标未就绪，数据无效
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}
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touch_num = finger & 0x0f;//坐标点数
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if (touch_num > GTP_MAX_TOUCH)
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{
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goto exit_work_func;//大于最大支持点数，错误退出
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}
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if (touch_num)
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{
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coor_data = &point_data[0 * 8 + 3];
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input_x = coor_data[1] | (coor_data[2] << 8); //x坐标
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input_y = coor_data[3] | (coor_data[4] << 8); //y坐标
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input_w = coor_data[5] | (coor_data[6] << 8); //size
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touch_point->X = input_x;
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touch_point->Y = input_y;
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*touch_event = kTouch_Down;
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Pre_Touch_Point = *touch_point;
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}
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else if (pre_touch) //touch_ num=0 且pre_touch！=0
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{
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*touch_point = Pre_Touch_Point;
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*touch_event = kTouch_Up;
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Pre_Touch_Point.X = -1;
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Pre_Touch_Point.Y = -1;
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}
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pre_touch = touch_num;
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exit_work_func:
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{
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ret = GtpI2cWrite(client_addr, end_cmd, 3);
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if (ret < 0)
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{
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KPrintf("I2C write end_cmd error!");
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}
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}
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return 1;
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}
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int32_t GtpReadVersion(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};
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ret = GtpI2cRead(GTP_ADDRESS, buf, sizeof(buf));
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if (ret < 0)
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{
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KPrintf("GTP read version failed.\n");
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return ret;
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}
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if (buf[5] == 0x00)
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{
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KPrintf("IC1 Version: %c%c%c_%02x%02x\n", buf[2], buf[3], buf[4], buf[7], buf[6]);
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}
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else
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{
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KPrintf("IC2 Version: %c%c%c%c_%02x%02x\n", buf[2], buf[3], buf[4], buf[5], buf[7], buf[6]);
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}
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return ret;
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}
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static int32_t GtpGetInfo(void)
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{
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uint8_t opr_buf[6] = {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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/* config the touch as 480*272 size */
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gt91xx_Config_Write_Proc();
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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 = GtpI2cRead(GTP_ADDRESS, opr_buf, 6);
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if (ret < 0)
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{
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return -1;
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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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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 = GtpI2cRead(GTP_ADDRESS, opr_buf, 3);
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if (ret < 0)
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{
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return 0;
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}
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int_trigger_type = opr_buf[2] & 0x03;
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KPrintf("X_MAX = %d, Y_MAX = %d, TRIGGER = 0x%02x\n",
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abs_x_max,abs_y_max,int_trigger_type);
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return 0;
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}
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static uint32 TouchOpen(void *dev)
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{
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int32_t ret = -1;
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I2C_Touch_Init();
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ret = GtpReadVersion();
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if(ret < 0)
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{
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KPrintf("gtp read version error\n");
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GtpI2cDeinit();
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return ret;
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}
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ret = GtpGetInfo();
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if(ret < 0)
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{
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KPrintf("gtp read info error\n");
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GtpI2cDeinit();
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return ret;
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}
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touch_sem = KSemaphoreCreate(0);
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if (touch_sem < 0) {
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KPrintf("touch create sem failed .\n");
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GtpI2cDeinit();
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return -1;
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}
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GTP_IRQEnable();
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return ret;
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}
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static uint32 TouchClose(void *dev)
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{
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GTP_IRQDisable();
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KSemaphoreDelete(touch_sem);
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GtpI2cDeinit();
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return 0;
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}
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static uint32 TouchRead(void *dev, struct BusBlockReadParam *read_param)
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{
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uint32 ret = -1;
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x_err_t result;
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POINT touch_point;
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touch_event_t touch_event;
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struct TouchDataStandard *data = (struct TouchDataStandard*)read_param->buffer;
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result = KSemaphoreObtain(touch_sem, 1000);
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if (EOK == result)
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{
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if(GetTouchEvent(&touch_point, &touch_event))
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{
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data->x = abs(LCD_WIDTH - touch_point.X);
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data->y = abs(LCD_HEIGHT - touch_point.Y);
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data->x = touch_point.X;
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data->y = touch_point.Y;
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g_TouchPadInputSignal = 0;
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SemReleaseFlag = 0;
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read_param->read_length = read_param->size;
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ret = EOK;
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}
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}
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return ret;
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}
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static uint32 TouchConfigure(void *drv, struct BusConfigureInfo *configure_info)
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{
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return 0;
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}
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struct TouchDevDone touch_dev_done =
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{
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.open = TouchOpen,
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.close = TouchClose,
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.write = NONE,
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.read = TouchRead
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};
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static int BoardTouchBusInit(struct TouchBus * touch_bus, struct TouchDriver * touch_driver,const char *bus_name, const char *drv_name)
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{
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x_err_t ret = EOK;
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/*Init the touch bus */
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ret = TouchBusInit(touch_bus, bus_name);
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if (EOK != ret) {
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KPrintf("Board_touch_init touchBusInit error %d\n", ret);
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return -ERROR;
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}
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/*Init the touch driver*/
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ret = TouchDriverInit(touch_driver, drv_name);
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if (EOK != ret){
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KPrintf("Board_touch_init touchDriverInit error %d\n", ret);
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return -ERROR;
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}
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/*Attach the touch driver to the touch bus*/
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ret = TouchDriverAttachToBus(drv_name, bus_name);
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if (EOK != ret){
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KPrintf("Board_touch_init TouchDriverAttachToBus error %d\n", ret);
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return -ERROR;
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}
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return ret;
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}
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/*Attach the touch device to the touch bus*/
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static int BoardTouchDevBend(struct TouchHardwareDevice *touch_device, void *param, const char *bus_name, const char *dev_name)
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{
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x_err_t ret = EOK;
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ret = TouchDeviceRegister(touch_device, param, dev_name);
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if (EOK != ret){
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KPrintf("TouchDeviceRegister device %s error %d\n", dev_name, ret);
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return -ERROR;
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}
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ret = TouchDeviceAttachToBus(dev_name, bus_name);
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if (EOK != ret) {
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KPrintf("TouchDeviceAttachToBus device %s error %d\n", dev_name, ret);
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return -ERROR;
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}
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return ret;
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}
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int HwTouchInit(void)
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{
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x_err_t ret = EOK;
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static struct TouchBus touch_bus;
|
||||
static struct TouchDriver touch_driver;
|
||||
static struct TouchHardwareDevice touch_dev;
|
||||
|
||||
memset(&touch_bus, 0, sizeof(struct TouchBus));
|
||||
memset(&touch_driver, 0, sizeof(struct TouchDriver));
|
||||
memset(&touch_dev, 0, sizeof(struct TouchHardwareDevice));
|
||||
|
||||
touch_driver.configure = TouchConfigure;
|
||||
|
||||
ret = BoardTouchBusInit(&touch_bus, &touch_driver,TOUCH_BUS_NAME,TOUCH_DRV_NAME);
|
||||
if (EOK != ret) {
|
||||
return -ERROR;
|
||||
}
|
||||
|
||||
touch_dev.dev_done = &touch_dev_done;
|
||||
|
||||
ret = BoardTouchDevBend(&touch_dev, NONE, TOUCH_BUS_NAME, TOUCH_DEVICE_NAME);
|
||||
if (EOK != ret) {
|
||||
KPrintf("board_touch_Init error ret %u\n", ret);
|
||||
return -ERROR;
|
||||
}
|
||||
|
||||
return EOK;
|
||||
}
|
||||
@@ -0,0 +1,356 @@
|
||||
|
||||
// #include "fsl_debug_console.h"
|
||||
#include <board.h>
|
||||
#include "fsl_iomuxc.h"
|
||||
#include "pin_mux.h"
|
||||
#include "fsl_gpio.h"
|
||||
#include "fsl_lpi2c.h"
|
||||
|
||||
#include "i2c_touch.h"
|
||||
#include <connect_touch.h>
|
||||
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
* Definitions
|
||||
******************************************************************************/
|
||||
|
||||
|
||||
/*******************************************************************************
|
||||
* Prototypes
|
||||
******************************************************************************/
|
||||
static void GTP_I2C_ModeInit(void);
|
||||
|
||||
static void I2C_Master_Callback(LPI2C_Type *base, lpi2c_master_handle_t *handle, status_t status, void *userData);
|
||||
static uint32_t I2C_Timeout_Callback(uint8_t errorCode);
|
||||
|
||||
/*******************************************************************************
|
||||
* Variables
|
||||
******************************************************************************/
|
||||
|
||||
lpi2c_master_handle_t g_m_handle;
|
||||
volatile bool g_MasterCompletionFlag = false;
|
||||
volatile bool g_TouchPadInputSignal = false;
|
||||
volatile bool SemReleaseFlag = false;
|
||||
/*******************************************************************************
|
||||
* Code
|
||||
******************************************************************************/
|
||||
|
||||
/**
|
||||
* @brief 对GT91xx芯片进行复位
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
void GTP_ResetChip(void)
|
||||
{
|
||||
/* 先把RST INT配置为输出模式 */
|
||||
gpio_pin_config_t rst_int_config = {kGPIO_DigitalOutput, 0, kGPIO_NoIntmode};
|
||||
|
||||
GPIO_PinInit(TOUCH_PAD_INT_GPIO, TOUCH_PAD_INT_GPIO_PIN, &rst_int_config);
|
||||
|
||||
/*初始化GT9157,INT为低电平，则gt9157的设备地址被配置为0xBA*/
|
||||
|
||||
/*复位为低电平，为初始化做准备*/
|
||||
GPIO_PinWrite(TOUCH_PAD_INT_GPIO, TOUCH_PAD_INT_GPIO_PIN, 0U);
|
||||
|
||||
//INT配置成中断输入
|
||||
rst_int_config.direction = kGPIO_DigitalInput;
|
||||
rst_int_config.outputLogic = 0;
|
||||
rst_int_config.interruptMode = kGPIO_IntFallingEdge;
|
||||
|
||||
GPIO_PinInit(TOUCH_PAD_INT_GPIO, TOUCH_PAD_INT_GPIO_PIN, &rst_int_config);
|
||||
|
||||
/* 使能引脚中断 */
|
||||
GPIO_PortEnableInterrupts(TOUCH_PAD_INT_GPIO, 1U << TOUCH_PAD_INT_GPIO_PIN);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 禁止触摸芯片的中断
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
void GTP_IRQDisable(void)
|
||||
{
|
||||
DisableIRQ(GT9xx_PEN_IRQ);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 使能触摸芯片的中断
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
void GTP_IRQEnable(void)
|
||||
{
|
||||
|
||||
IOMUXC_SetPinMux(
|
||||
IOMUXC_GPIO_B1_14_GPIO2_IO30, /* WAKEUP is configured as GPIO5_IO00 */
|
||||
0U); /* Software Input On Field: Input Path is determined by functionality */
|
||||
|
||||
IOMUXC_SetPinConfig(
|
||||
IOMUXC_GPIO_B1_14_GPIO2_IO30,
|
||||
0x10B0u);
|
||||
|
||||
|
||||
gpio_pin_config_t rst_int_config;
|
||||
|
||||
//INT配置成中断输入
|
||||
rst_int_config.direction = kGPIO_DigitalInput;
|
||||
rst_int_config.outputLogic = 0;
|
||||
rst_int_config.interruptMode = kGPIO_IntFallingEdge;
|
||||
|
||||
GPIO_PinInit(TOUCH_PAD_INT_GPIO, TOUCH_PAD_INT_GPIO_PIN, &rst_int_config);
|
||||
|
||||
/* 使能引脚中断 */
|
||||
GPIO_PortEnableInterrupts(TOUCH_PAD_INT_GPIO, 1U << TOUCH_PAD_INT_GPIO_PIN);
|
||||
|
||||
/* 使能中断IRQ */
|
||||
EnableIRQ(GT9xx_PEN_IRQ);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* @brief 初始化触摸芯片使用的I2C外设
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
void GTP_I2C_ModeInit(void)
|
||||
{
|
||||
lpi2c_master_config_t masterConfig;
|
||||
|
||||
/*
|
||||
* masterConfig.debugEnable = false;
|
||||
* masterConfig.ignoreAck = false;
|
||||
* masterConfig.pinConfig = kLPI2C_2PinOpenDrain;
|
||||
* masterConfig.baudRate_Hz = 100000U;
|
||||
* masterConfig.busIdleTimeout_ns = 0;
|
||||
* masterConfig.pinLowTimeout_ns = 0;
|
||||
* masterConfig.sdaGlitchFilterWidth_ns = 0;
|
||||
* masterConfig.sclGlitchFilterWidth_ns = 0;
|
||||
*/
|
||||
LPI2C_MasterGetDefaultConfig(&masterConfig);
|
||||
|
||||
masterConfig.baudRate_Hz = GTP_I2C_BAUDRATE;
|
||||
|
||||
LPI2C_MasterInit(GTP_I2C_MASTER, &masterConfig, LPI2C_MASTER_CLOCK_FREQUENCY);
|
||||
|
||||
LPI2C_MasterTransferCreateHandle(GTP_I2C_MASTER, &g_m_handle, I2C_Master_Callback, NULL);
|
||||
|
||||
}
|
||||
|
||||
void GtpI2cDeinit(void)
|
||||
{
|
||||
LPI2C_MasterDeinit(GTP_I2C_MASTER);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 使用IIC读取数据
|
||||
* @param
|
||||
* @arg ClientAddr:从设备地址
|
||||
* @arg pBuffer:存放由从机读取的数据的缓冲区指针
|
||||
* @arg NumByteToRead:读取的数据长度
|
||||
* @retval 无
|
||||
*/
|
||||
uint32_t I2C_ReadBytes(uint8_t ClientAddr,uint8_t* pBuffer, uint16_t NumByteToRead)
|
||||
{
|
||||
lpi2c_master_transfer_t masterXfer = {0};
|
||||
status_t reVal = kStatus_Fail;
|
||||
uint32_t i2c_timeout = I2CT_LONG_TIMEOUT;
|
||||
|
||||
|
||||
/* subAddress = 0x00, data = pBuffer 自从机处接收
|
||||
起始信号start + 设备地址slaveaddress(w 写方向) + 子地址subAddress +
|
||||
重复起始信号repeated start + 设备地址slaveaddress(r 读方向) +
|
||||
接收缓冲数据rx data buffer + 停止信号stop */
|
||||
masterXfer.slaveAddress = (ClientAddr>>1);
|
||||
masterXfer.direction = kLPI2C_Read;
|
||||
masterXfer.subaddress = (uint32_t)0;
|
||||
masterXfer.subaddressSize = 0;
|
||||
masterXfer.data = pBuffer;
|
||||
masterXfer.dataSize = NumByteToRead;
|
||||
masterXfer.flags = kLPI2C_TransferDefaultFlag;
|
||||
|
||||
reVal = LPI2C_MasterTransferNonBlocking(GTP_I2C_MASTER, &g_m_handle, &masterXfer);
|
||||
if (reVal != kStatus_Success)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
/* 复位传输完成标志 */
|
||||
g_MasterCompletionFlag = false;
|
||||
|
||||
/* 等待传输完成 */
|
||||
while (!g_MasterCompletionFlag)
|
||||
{
|
||||
if((i2c_timeout--) == 0) return I2C_Timeout_Callback(0);
|
||||
|
||||
}
|
||||
g_MasterCompletionFlag = false;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 使用IIC写入数据
|
||||
* @param
|
||||
* @arg ClientAddr:从设备地址
|
||||
* @arg pBuffer:缓冲区指针
|
||||
* @arg NumByteToWrite:写的字节数
|
||||
* @retval 无
|
||||
*/
|
||||
uint32_t I2C_WriteBytes(uint8_t ClientAddr,uint8_t* pBuffer, uint8_t NumByteToWrite)
|
||||
{
|
||||
lpi2c_master_transfer_t masterXfer = {0};
|
||||
status_t reVal = kStatus_Fail;
|
||||
uint32_t i2c_timeout = I2CT_LONG_TIMEOUT;
|
||||
|
||||
|
||||
/* subAddress = 0x00, data = pBuffer 发送至从机
|
||||
起始信号start + 设备地址slaveaddress(w 写方向) +
|
||||
发送缓冲数据tx data buffer + 停止信号stop */
|
||||
|
||||
masterXfer.slaveAddress = (ClientAddr>>1);
|
||||
masterXfer.direction = kLPI2C_Write;
|
||||
masterXfer.subaddress = (uint32_t)0;
|
||||
masterXfer.subaddressSize = 0;
|
||||
masterXfer.data = pBuffer;
|
||||
masterXfer.dataSize = NumByteToWrite;
|
||||
masterXfer.flags = kLPI2C_TransferDefaultFlag;
|
||||
|
||||
reVal = LPI2C_MasterTransferNonBlocking(GTP_I2C_MASTER, &g_m_handle, &masterXfer);
|
||||
if (reVal != kStatus_Success)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
/* 复位传输完成标志 */
|
||||
g_MasterCompletionFlag = false;
|
||||
|
||||
/* 等待传输完成 */
|
||||
while (!g_MasterCompletionFlag)
|
||||
{
|
||||
if((i2c_timeout--) == 0) return I2C_Timeout_Callback(1);
|
||||
}
|
||||
g_MasterCompletionFlag = false;
|
||||
|
||||
return 0;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief IIC等待超时调用本函数输出调试信息
|
||||
* @param None.
|
||||
* @retval 返回0xff，表示IIC读取数据失败
|
||||
*/
|
||||
static uint32_t I2C_Timeout_Callback(uint8_t errorCode)
|
||||
{
|
||||
/* Block communication and all processes */
|
||||
KPrintf("I2C timeout!errorCode = %d",errorCode);
|
||||
|
||||
return 0xFF;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief I2C外设传输完成的回调函数
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
static void I2C_Master_Callback(LPI2C_Type *base, lpi2c_master_handle_t *handle, status_t status, void *userData)
|
||||
{
|
||||
/* 接收到kStatus_Success标志后，
|
||||
设置g_MasterCompletionFlag标志表明传输成功 */
|
||||
if (status == kStatus_Success)
|
||||
{
|
||||
g_MasterCompletionFlag = true;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* @brief 触摸引脚及芯片初始化
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
void I2C_Touch_Init(void)
|
||||
{
|
||||
|
||||
// /* 初始化I2C外设工作模式 */
|
||||
GTP_I2C_ModeInit();
|
||||
|
||||
/* 复位触摸芯片，配置地址 */
|
||||
GTP_ResetChip();
|
||||
}
|
||||
|
||||
|
||||
/***************************中断相关******************************/
|
||||
/**
|
||||
* @brief 触摸芯片TOUCH_PAD_INT_GPIO_PIN引脚的中断服务函数
|
||||
* @param 无
|
||||
* @retval 无
|
||||
*/
|
||||
//void TOUCH_PAD_IRQHANDLER(void)
|
||||
extern int touch_sem;
|
||||
void GT9xx_PEN_IRQHandler(int irqn, void *arg)
|
||||
{
|
||||
DisableIRQ(GT9xx_PEN_IRQ);
|
||||
/* 确认是触摸芯片的中断 */
|
||||
if(GPIO_GetPinsInterruptFlags(TOUCH_PAD_INT_GPIO) & 1U << TOUCH_PAD_INT_GPIO_PIN)
|
||||
{
|
||||
/* 清除中断标志 */
|
||||
GPIO_PortClearInterruptFlags(TOUCH_PAD_INT_GPIO, 1U << TOUCH_PAD_INT_GPIO_PIN);
|
||||
/* 切换触摸输入状态标志 */
|
||||
g_TouchPadInputSignal = true;
|
||||
if(!SemReleaseFlag)
|
||||
{
|
||||
KSemaphoreAbandon(touch_sem);
|
||||
SemReleaseFlag = true;
|
||||
}
|
||||
}
|
||||
EnableIRQ(GT9xx_PEN_IRQ);
|
||||
#if defined __CORTEX_M && (__CORTEX_M == 4U)
|
||||
__DSB();
|
||||
#endif
|
||||
}
|
||||
DECLARE_HW_IRQ(GT9xx_PEN_IRQ, GT9xx_PEN_IRQHandler, NONE);
|
||||
|
||||
|
||||
/**
|
||||
* i2c_transfer - execute a single or combined I2C message
|
||||
* @msgs: One or more messages to execute before STOP is issued to
|
||||
* terminate the operation; each message begins with a START.
|
||||
* @num: Number of messages to be executed.
|
||||
*/
|
||||
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
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
/*********************************************END OF FILE**********************/
|
||||
@@ -0,0 +1,67 @@
|
||||
#ifndef __I2C_TOUCH_H
|
||||
#define __I2C_TOUCH_H
|
||||
|
||||
#include "fsl_common.h"
|
||||
#include "fsl_lpi2c.h"
|
||||
#include "board.h"
|
||||
#include <connect_touch.h>
|
||||
extern lpi2c_master_handle_t g_m_handle;
|
||||
extern volatile bool g_MasterCompletionFlag ;
|
||||
extern volatile bool g_TouchPadInputSignal;
|
||||
extern volatile bool SemReleaseFlag;
|
||||
|
||||
|
||||
|
||||
/* Select USB1 PLL (480 MHz) as master lpi2c clock source */
|
||||
#define LPI2C_CLOCK_SOURCE_SELECT (0U)
|
||||
/* Clock divider for master lpi2c clock source */
|
||||
#define LPI2C_CLOCK_SOURCE_DIVIDER (5U)
|
||||
/* Get frequency of lpi2c clock */
|
||||
#define LPI2C_CLOCK_FREQUENCY ((CLOCK_GetFreq(kCLOCK_Usb1PllClk) / 8) / (LPI2C_CLOCK_SOURCE_DIVIDER + 1U))
|
||||
|
||||
#define LPI2C_MASTER_CLOCK_FREQUENCY LPI2C_CLOCK_FREQUENCY
|
||||
|
||||
#define GTP_I2C_MASTER_BASE (LPI2C1_BASE)
|
||||
#define GTP_I2C_MASTER ((LPI2C_Type *)GTP_I2C_MASTER_BASE)
|
||||
|
||||
#define GTP_I2C_BAUDRATE 400000U
|
||||
|
||||
/* 等待超时时间 */
|
||||
#define I2CT_FLAG_TIMEOUT ((uint32_t)0x10000)
|
||||
#define I2CT_LONG_TIMEOUT ((uint32_t)(10 * I2CT_FLAG_TIMEOUT))
|
||||
|
||||
|
||||
/*! @brief 触摸芯片引脚定义 */
|
||||
|
||||
#define TOUCH_PAD_SCL_IOMUXC IOMUXC_GPIO_AD_B1_00_LPI2C1_SCL
|
||||
#define TOUCH_PAD_SDA_IOMUXC IOMUXC_GPIO_AD_B1_01_LPI2C1_SDA
|
||||
|
||||
|
||||
#define TOUCH_PAD_RST_GPIO GPIO1
|
||||
#define TOUCH_PAD_RST_GPIO_PIN (27U)
|
||||
#define TOUCH_PAD_RST_IOMUXC IOMUXC_GPIO_AD_B1_11_GPIO1_IO27//IOMUXC_GPIO_AD_B1_11_GPIO1_IO27
|
||||
|
||||
#define TOUCH_PAD_INT_GPIO GPIO2
|
||||
#define TOUCH_PAD_INT_GPIO_PIN (30U)
|
||||
#define TOUCH_PAD_INT_IOMUXC IOMUXC_GPIO_AD_B0_11_GPIO1_IO11
|
||||
|
||||
#define GT9xx_PEN_IRQ GPIO2_Combined_16_31_IRQn
|
||||
#define GT9xx_PEN_IRQHandler GPIO2_Combined_16_31_IRQHandler
|
||||
|
||||
|
||||
|
||||
//函数接口
|
||||
int32_t GTP_I2C_ReadBytes(uint8_t client_addr, uint8_t *buf, int32_t len);
|
||||
|
||||
void I2C_Touch_Init(void);
|
||||
void GtpI2cDeinit(void);
|
||||
uint32_t I2C_WriteBytes(uint8_t ClientAddr,uint8_t* pBuffer, uint8_t NumByteToWrite);
|
||||
uint32_t I2C_ReadBytes(uint8_t ClientAddr,uint8_t* pBuffer, uint16_t NumByteToRead);
|
||||
void GTP_ResetChip(void);
|
||||
void GTP_IRQDisable(void);
|
||||
void GTP_IRQEnable(void);
|
||||
int I2C_Transfer( struct i2c_msg *msgs,int num);
|
||||
|
||||
|
||||
|
||||
#endif /* __I2C_TOUCH_H */
|
||||
Reference in New Issue
Block a user