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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-02-08 Zhangyihong the first version
* 2018-04-03 XY gt9xx for 1024 * 600
* 2018-04-14 liu2guang optimize int and rst to pin framework
* 2017-08-08 XY imxrt1052
* 2018-10-29 XY
*/
#include "drv_touch.h"
#include "string.h"
#ifdef TINA_USING_TOUCH
#define TP_INT_PIN 89
#define TP_RST_PIN 87
#ifndef TP_INT_PIN
#error "Please config touch panel INT pin."
#endif
#ifndef TP_RST_PIN
#error "Please config touch panel RST pin."
#endif
#ifndef IIC_RETRY_NUM
#define IIC_RETRY_NUM 2
#endif
#define GT9xx_TS_ADDR (0x5D)
#define gt9xx_READ_XY_REG (0x814E) /* 坐标寄存器 */
#define gt9xx_CLEARBUF_REG (0x814E) /* 清除坐标寄存器 */
#define gt9xx_CONFIG_REG (0x8047) /* 配置参数寄存器 */
#define gt9xx_COMMAND_REG (0x8040) /* 实时命令 */
#define gt9xx_PRODUCT_ID_REG (0x8140) /* 产品ID */
#define gt9xx_VENDOR_ID_REG (0x814A) /* 当前模组选项信息 */
#define gt9xx_CONFIG_VERSION_REG (0x8047) /* 配置文件版本号 */
#define gt9xx_CONFIG_CHECKSUM_REG (0x80FF) /* 配置文件校验码 */
#define gt9xx_FIRMWARE_VERSION_REG (0x8144) /* 固件版本号 */
#if 0
#define TPDEBUG rt_kprintf
#else
#define TPDEBUG(...)
#endif
static struct touch_driver gt9xx_driver;
void gt9xx_hw_reset(rt_uint8_t address)
{
rt_tick_t delay = rt_tick_from_millisecond(30);
rt_pin_mode(TP_RST_PIN, PIN_MODE_OUTPUT);
rt_pin_mode(TP_INT_PIN, PIN_MODE_OUTPUT);
if (address == 0x5D)
{
rt_pin_write(TP_RST_PIN, PIN_LOW);
rt_pin_write(TP_INT_PIN, PIN_LOW);
rt_thread_delay(delay);
rt_pin_write(TP_RST_PIN, PIN_HIGH);
rt_pin_write(TP_INT_PIN, PIN_LOW);
rt_thread_delay(delay);
rt_pin_write(TP_INT_PIN, PIN_LOW);
rt_thread_delay(delay);
rt_pin_write(TP_INT_PIN, PIN_HIGH);
}
else
{
rt_pin_write(TP_RST_PIN, PIN_LOW);
rt_pin_write(TP_INT_PIN, PIN_HIGH);
rt_thread_delay(delay);
rt_pin_write(TP_RST_PIN, PIN_HIGH);
rt_pin_write(TP_INT_PIN, PIN_HIGH);
rt_thread_delay(delay);
rt_pin_write(TP_INT_PIN, PIN_LOW);
rt_thread_delay(delay);
rt_pin_write(TP_INT_PIN, PIN_HIGH);
}
}
static void gt9xx_soft_reset(struct rt_i2c_bus_device *i2c_bus)
{
rt_uint8_t buf[3];
buf[0] = (rt_uint8_t)((gt9xx_COMMAND_REG >> 8) & 0xFF);
buf[1] = (rt_uint8_t)(gt9xx_COMMAND_REG & 0xFF);
buf[2] = 0x02;
rt_touch_write(GT9xx_TS_ADDR, buf, 3);
}
static rt_bool_t gt9xx_probe(struct rt_i2c_bus_device *i2c_bus)
{
rt_uint8_t cmd[2];
rt_uint8_t buffer[5] = {0};
gt9xx_hw_reset(GT9xx_TS_ADDR);
//gt9xx_soft_reset(i2c_bus);
rt_thread_delay(RT_TICK_PER_SECOND / 5);
cmd[0] = (rt_uint8_t)((gt9xx_PRODUCT_ID_REG >> 8) & 0xFF);
cmd[1] = (rt_uint8_t)(gt9xx_PRODUCT_ID_REG & 0xFF);
if (rt_touch_read(GT9xx_TS_ADDR, &cmd, 2, buffer, 4) != 0)
{
TPDEBUG("[TP] %s failed!\n", __func__);
return RT_FALSE;
}
buffer[4] = '\0';
TPDEBUG("%#X %#X %#X %#X %#X\n", buffer[0], buffer[1], buffer[2], buffer[3], buffer[4]);
if(!rt_strcmp((const char*)buffer, "911"))
{
rt_kprintf("[TP] Found chip gt911\n");
return RT_TRUE;
}
else if(!rt_strcmp((const char*)buffer, "9147"))
{
rt_kprintf("[TP] Found chip gt9147\n");
return RT_TRUE;
}
else if(!rt_strcmp((const char*)buffer, "9157"))
{
rt_kprintf("[TP] Found chip gt9157\n");
return RT_TRUE;
}
else
{
rt_kprintf("[TP] Uknow chip gt9xx device: [%s]\n", buffer);
}
return RT_FALSE;
}
static void gt9xx_init(struct rt_i2c_bus_device *i2c_bus)
{
rt_uint8_t buf = 0;
rt_uint8_t cmd[2];
gt9xx_driver.isr_sem = rt_sem_create("gt9xx", 0, RT_IPC_FLAG_FIFO);
RT_ASSERT(gt9xx_driver.isr_sem);
cmd[0] = (rt_uint8_t)((gt9xx_CONFIG_VERSION_REG >> 8) & 0xFF);
cmd[1] = (rt_uint8_t)(gt9xx_CONFIG_VERSION_REG & 0xFF);
rt_touch_read(GT9xx_TS_ADDR, &cmd, 2, &buf, 1);
rt_kprintf("[TP] GT9xx Config version: 0x%02X\n", buf);
cmd[0] = (rt_uint8_t)((gt9xx_VENDOR_ID_REG >> 8) & 0xFF);
cmd[1] = (rt_uint8_t)(gt9xx_VENDOR_ID_REG & 0xFF);
rt_touch_read(GT9xx_TS_ADDR, &cmd, 2, &buf, 1);
rt_kprintf("[TP] GT9xx Sensor id: 0x%02X\n", buf);
rt_sem_release(gt9xx_driver.isr_sem);
}
static void gt9xx_deinit(void)
{
rt_sem_delete(gt9xx_driver.isr_sem);
}
static rt_err_t gt9xx_read_point(touch_message_t msg)
{
rt_uint8_t cmd[2];
rt_uint8_t buf[8] = {0};
static rt_uint8_t s_tp_down = 0;
cmd[0] = (rt_uint8_t)((gt9xx_READ_XY_REG >> 8) & 0xFF);
cmd[1] = (rt_uint8_t)(gt9xx_READ_XY_REG & 0xFF);
rt_touch_read(GT9xx_TS_ADDR, &cmd, 2, buf, 8);
if((buf[0] & 0x01) == 0)
{
if(s_tp_down)
{
s_tp_down = 0;
msg->event = TOUCH_EVENT_UP;
}
else
{
msg->event = TOUCH_EVENT_NONE;
}
}
else
{
msg->x = ((rt_uint16_t)buf[3] << 8) | buf[2];
msg->y = ((rt_uint16_t)buf[5] << 8) | buf[4];
if(s_tp_down)
{
msg->event = TOUCH_EVENT_MOVE;
}
else
{
msg->event = TOUCH_EVENT_DOWN;
s_tp_down = 1;
}
}
buf[0] = ((gt9xx_CLEARBUF_REG >> 8) & 0xFF);
buf[1] = (gt9xx_CLEARBUF_REG & 0xFF);
buf[2] = 0x00;
rt_touch_write(GT9xx_TS_ADDR, buf, 3);
rt_sem_release(gt9xx_driver.isr_sem);
return RT_EOK;
}
struct touch_ops gt9xx_ops =
{
.init = gt9xx_init,
.deinit = gt9xx_deinit,
.read_point = gt9xx_read_point,
};
static int gt9xx_driver_register(void)
{
gt9xx_driver.probe = gt9xx_probe;
gt9xx_driver.ops = >9xx_ops;
gt9xx_driver.user_data = RT_NULL;
rt_touch_drivers_register(>9xx_driver);
return RT_EOK;
}
INIT_ENV_EXPORT(gt9xx_driver_register);
#endif
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