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rt-thread-official/bsp/loongson/ls1cdev/drivers/drv_touch.c

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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-02-08 Zhangyihong the first version
* 2018-10-29 XY
* 2019-04-11 sundm75 modify for ls1c300 & RTGUI
*/
#include "drv_touch.h"
#define TOUCH_I2C_NAME "i2c1"
#ifndef TOUCH_SAMPLE_HZ
#define TOUCH_SAMPLE_HZ (50)
#endif
#ifndef TOUCH_I2C_NAME
#error "Please define touch i2c name!"
#endif
#ifdef TINA_USING_TOUCH
#if (defined PKG_USING_GUIENGINE) || (defined RT_USING_RTGUI)
#include <rtgui/event.h>
#include <rtgui/rtgui_server.h>
#endif
#if 0
#define TPDEBUG rt_kprintf
#else
#define TPDEBUG(...)
#endif
static rt_slist_t _driver_list;
static struct rt_i2c_bus_device *i2c_bus = RT_NULL;
static void post_down_event(rt_uint16_t x, rt_uint16_t y, rt_uint32_t id)
{
#if (defined PKG_USING_GUIENGINE) || (defined RT_USING_RTGUI)
rt_err_t result;
struct rtgui_event_mouse emouse;
emouse.parent.sender = RT_NULL;
emouse.wid = RT_NULL;
emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_DOWN;
emouse.x = x;
emouse.y = y;
#ifdef PKG_USING_GUIENGINE
emouse.ts = rt_tick_get();
emouse.id = id;
#endif
#ifdef PKG_USING_GUIENGINE
do
{
result = rtgui_server_post_event(&emouse.parent, sizeof(emouse));
if (result != RT_EOK)
{
rt_thread_delay(RT_TICK_PER_SECOND / TOUCH_SAMPLE_HZ);
}
}
while (result != RT_EOK);
#else
rtgui_server_post_event(&emouse.parent, sizeof(emouse));
#endif
TPDEBUG("[TP] touch down [%d, %d]\n", emouse.x, emouse.y);
#endif
}
static void post_motion_event(rt_uint16_t x, rt_uint16_t y, rt_uint32_t id)
{
#if (defined PKG_USING_GUIENGINE) || (defined RT_USING_RTGUI)
struct rtgui_event_mouse emouse;
emouse.parent.sender = RT_NULL;
emouse.wid = RT_NULL;
emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_DOWN;
emouse.parent.type = RTGUI_EVENT_MOUSE_MOTION;
emouse.x = x;
emouse.y = y;
#ifdef PKG_USING_GUIENGINE
emouse.ts = rt_tick_get();
emouse.id = id;
#endif
rtgui_server_post_event(&emouse.parent, sizeof(emouse));
TPDEBUG("[TP] touch motion [%d, %d]\n", emouse.x, emouse.y);
#endif
}
static void post_up_event(rt_uint16_t x, rt_uint16_t y, rt_uint32_t id)
{
#if (defined PKG_USING_GUIENGINE) || (defined RT_USING_RTGUI)
rt_err_t result;
struct rtgui_event_mouse emouse;
emouse.parent.sender = RT_NULL;
emouse.wid = RT_NULL;
emouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
emouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_UP;
emouse.x = x;
emouse.y = y;
#ifdef PKG_USING_GUIENGINE
emouse.ts = rt_tick_get();
emouse.id = id;
#endif
#ifdef PKG_USING_GUIENGINE
do
{
result = rtgui_server_post_event(&emouse.parent, sizeof(emouse));
if (result != RT_EOK)
{
rt_thread_delay(RT_TICK_PER_SECOND / TOUCH_SAMPLE_HZ);
}
}
while (result != RT_EOK);
#else
rtgui_server_post_event(&emouse.parent, sizeof(emouse));
#endif
TPDEBUG("[TP] touch up [%d, %d]\n", emouse.x, emouse.y);
#endif
}
static void touch_run(void* parameter)
{
rt_tick_t emouse_id = 0;
struct touch_message msg;
rt_slist_t *driver_list = NULL;
struct touch_driver *current_driver = RT_NULL;
i2c_bus = rt_i2c_bus_device_find(TOUCH_I2C_NAME);
RT_ASSERT(i2c_bus);
if(rt_device_open(&i2c_bus->parent, RT_DEVICE_OFLAG_RDWR) != RT_EOK)
{
return;
}
rt_slist_for_each(driver_list, &_driver_list)
{
current_driver = (struct touch_driver *)driver_list;
if(current_driver->probe(i2c_bus) == RT_TRUE)
{
break;
}
current_driver = RT_NULL;
}
if(current_driver == RT_NULL)
{
rt_kprintf("[TP] No touch pad or driver.\n");
rt_device_close((rt_device_t)i2c_bus);
return;
}
current_driver->ops->init(i2c_bus);
while (1)
{
if (rt_sem_take(current_driver->isr_sem, RT_WAITING_FOREVER) != RT_EOK)
{
continue;
}
if (current_driver->ops->read_point(&msg) != RT_EOK)
{
continue;
}
switch (msg.event)
{
case TOUCH_EVENT_MOVE:
post_motion_event(msg.x, msg.y, emouse_id);
break;
case TOUCH_EVENT_DOWN:
emouse_id = rt_tick_get();
post_down_event(msg.x, msg.y, emouse_id);
break;
case TOUCH_EVENT_UP:
post_up_event(msg.x, msg.y, emouse_id);
break;
default:
break;
}
rt_thread_delay(RT_TICK_PER_SECOND / TOUCH_SAMPLE_HZ);
}
}
rt_err_t rt_touch_drivers_register(touch_driver_t drv)
{
RT_ASSERT(drv != RT_NULL);
RT_ASSERT(drv->ops != RT_NULL);
RT_ASSERT(drv->probe != RT_NULL);
rt_slist_append(&_driver_list, &drv->list);
return RT_EOK;
}
static int rt_touch_list_init(void)
{
rt_slist_init(&_driver_list);
return RT_EOK;
}
INIT_BOARD_EXPORT(rt_touch_list_init);
static int rt_touch_init(void)
{
rt_thread_t thread = RT_NULL;
thread = rt_thread_create("touch", touch_run, RT_NULL, 2048, 28, 20);
if(thread)
{
return rt_thread_startup(thread);
}
return -RT_ERROR;
}
INIT_APP_EXPORT(rt_touch_init);
int rt_touch_read(rt_uint16_t addr, void *cmd_buf, size_t cmd_len, void *data_buf, size_t data_len)
{
struct rt_i2c_msg msgs[2];
msgs[0].addr = addr;
msgs[0].flags = RT_I2C_WR;
msgs[0].buf = cmd_buf;
msgs[0].len = cmd_len;
msgs[1].addr = addr;
msgs[1].flags = RT_I2C_RD;
msgs[1].buf = data_buf;
msgs[1].len = data_len;
if (rt_i2c_transfer(i2c_bus, msgs, 2) == 2)
return 0;
else
return -1;
}
int rt_touch_write(rt_uint16_t addr, void *data_buf, size_t data_len)
{
struct rt_i2c_msg msgs[1];
msgs[0].addr = addr;
msgs[0].flags = RT_I2C_WR;
msgs[0].buf = data_buf;
msgs[0].len = data_len;
if (rt_i2c_transfer(i2c_bus, msgs, 1) == 1)
return 0;
else
return -1;
}
#endif
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