126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/*
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* Copyright (c) 2006-2022, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2022-02-25 Wayne the first version
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#define THREAD_PRIORITY 5
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#define THREAD_STACK_SIZE 2048
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#define THREAD_TIMESLICE 5
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static rt_sem_t tpc_sem = RT_NULL;
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rt_weak void nu_touch_inputevent_cb(rt_int16_t x, rt_int16_t y, rt_uint8_t state)
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{
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rt_kprintf("[%d] %d %d\n", state, x, y);
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}
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static rt_err_t rx_callback(rt_device_t dev, rt_size_t size)
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{
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return rt_sem_release(tpc_sem);
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}
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static void tpc_entry(void *parameter)
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{
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struct rt_touch_data *read_data;
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struct rt_touch_info info;
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rt_device_t dev = RT_NULL;
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const char *name = (const char *)parameter;
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rt_uint32_t x_range = BSP_LCD_WIDTH;
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rt_uint32_t y_range = BSP_LCD_HEIGHT;
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dev = rt_device_find(name);
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if (dev == RT_NULL)
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{
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rt_kprintf("can't find device:%s\n", name);
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return;
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}
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if (rt_device_open(dev, RT_DEVICE_FLAG_INT_RX) != RT_EOK)
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{
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rt_kprintf("open device failed!");
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return;
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}
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rt_kprintf("[%s] x: %d, y: %d\n", __func__, x_range, y_range);
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rt_device_control(dev, RT_TOUCH_CTRL_SET_X_RANGE, &x_range); /* if possible you can set your x y coordinate*/
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rt_device_control(dev, RT_TOUCH_CTRL_SET_Y_RANGE, &y_range);
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tpc_sem = rt_sem_create("dsem", 0, RT_IPC_FLAG_FIFO);
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if (tpc_sem == RT_NULL)
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{
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rt_kprintf("create dynamic semaphore failed.\n");
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return;
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}
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rt_device_set_rx_indicate(dev, rx_callback);
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rt_device_control(dev, RT_TOUCH_CTRL_GET_INFO, &info);
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rt_kprintf("range_x = %d \n", info.range_x);
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rt_kprintf("range_y = %d \n", info.range_y);
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rt_kprintf("point_num = %d \n", info.point_num);
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read_data = (struct rt_touch_data *)rt_malloc(sizeof(struct rt_touch_data) * info.point_num);
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RT_ASSERT(read_data);
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rt_memset(read_data, 0, sizeof(struct rt_touch_data) * info.point_num);
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while (1)
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{
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rt_sem_take(tpc_sem, RT_WAITING_FOREVER);
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rt_device_control(dev, RT_TOUCH_CTRL_DISABLE_INT, RT_NULL);
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if (rt_device_read(dev, 0, read_data, info.point_num) == info.point_num)
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{
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for (rt_uint8_t i = 0; i < 1; i++) // Only report one point.
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{
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if (read_data[i].event == RT_TOUCH_EVENT_DOWN
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|| read_data[i].event == RT_TOUCH_EVENT_UP
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|| read_data[i].event == RT_TOUCH_EVENT_MOVE)
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{
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rt_uint16_t u16X, u16Y;
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u16X = read_data[i].x_coordinate;
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u16Y = read_data[i].y_coordinate;
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#if defined(NU_PKG_TPC_REVERSE_XY)
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u16X = info.range_x - u16X;
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u16Y = info.range_y - u16Y;
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#endif
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//rt_kprintf("[%d] %d %d\n", read_data[i].event, u16X, u16Y);
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nu_touch_inputevent_cb(u16X, u16Y, read_data[i].event);
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}
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}
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}
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rt_device_control(dev, RT_TOUCH_CTRL_ENABLE_INT, RT_NULL);
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}
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}
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/* Test function */
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int tpc_sample(const char *tpc_name)
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{
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rt_thread_t tpc_thread;
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tpc_thread = rt_thread_create("tpc",
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tpc_entry,
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(void *)tpc_name,
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THREAD_STACK_SIZE,
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THREAD_PRIORITY,
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THREAD_TIMESLICE);
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if (tpc_thread != RT_NULL)
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rt_thread_startup(tpc_thread);
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return 0;
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}
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