Add lvgl adaptation of touch screen xpt2046 for BSP (#6114)
* lvgl adaptation to resistive touch screen xpt2046 * some bug * canonical code * canonical code * fix * Modify the calibration section * Modify the calibration section * fix
This commit is contained in:
solar_li
GitHub
parent
a47468f574
commit
5b00165f6e
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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@ -29,8 +29,14 @@ static void input_read(lv_indev_drv_t *indev_drv, lv_indev_data_t *data)
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void lv_port_indev_input(rt_int16_t x, rt_int16_t y, lv_indev_state_t state)
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{
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last_state = state;
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#ifdef BSP_USING_TOUCH_CAP
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last_x = LCD_W - y;
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last_y = x;
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#endif /* BSP_USING_TOUCH_CAP */
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#ifdef BSP_USING_TOUCH_RES
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last_x = x;
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last_y = y;
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#endif /* BSP_USING_TOUCH_RES */
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}
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void lv_port_indev_init(void)
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@ -48,16 +48,39 @@ menu "Onboard Peripheral Drivers"
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default y
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endif
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config BSP_USING_TOUCH
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bool "Use LCD TOUCH"
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select BSP_USING_I2C2
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menuconfig BSP_USING_TOUCH
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bool "Use LCD TOUCH (Default Res)"
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default n
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if BSP_USING_TOUCH
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config BSP_USING_TOUCH_CAP
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bool "Use LCD TOUCH Capacitance (i2c2)"
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select BSP_USING_I2C2
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default n
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if BSP_USING_TOUCH_CAP
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config BSP_TOUCH_INT_PIN
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int "Touch interrupt pin, PB1"
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default 17
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endif
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config BSP_USING_TOUCH_RES
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bool "Use LCD TOUCH Resistance (sspi1)"
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select RT_USING_TOUCH
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select RT_TOUCH_PIN_IRQ
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select BSP_USING_SOFT_SPI
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select BSP_USING_SOFT_SPI1
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select BSP_USING_ONBOARD_LCD
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default y
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if BSP_USING_TOUCH_RES
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config BSP_XPT2046_CS_PIN
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string "pin name for the chip select pin"
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default "PC.13"
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config BSP_XPT2046_IRQ_PIN
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string "pin name for the irq pin"
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default "PB.1"
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endif
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endif
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config BSP_USING_LVGL
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bool "Enable LVGL for LCD"
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select BSP_USING_ONBOARD_LCD
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@ -374,7 +397,7 @@ menu "On-chip Peripheral Drivers"
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menuconfig BSP_USING_I2C1
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bool "Enable I2C1 BUS (software simulation)"
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default y
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default n
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select RT_USING_I2C
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select RT_USING_I2C_BITOPS
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select RT_USING_PIN
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@ -391,7 +414,7 @@ menu "On-chip Peripheral Drivers"
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menuconfig BSP_USING_I2C2
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bool "Enable LCD Touch BUS (software simulation)"
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default y
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default n
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select RT_USING_I2C
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select RT_USING_I2C_BITOPS
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select RT_USING_PIN
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@ -35,8 +35,14 @@ if GetDepend(['BSP_USING_SRAM']):
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if GetDepend(['BSP_USING_ONBOARD_LCD']):
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src += Glob('ports/drv_lcd.c')
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if GetDepend(['BSP_USING_TOUCH']):
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src += Glob('ports/touch/*.c')
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if GetDepend(['BSP_USING_TOUCH_CAP']):
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src += Glob('ports/touch/drv_touch_ft.c')
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src += Glob('ports/touch/drv_touch.c')
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path += [cwd + '/ports/touch']
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if GetDepend(['BSP_USING_TOUCH_RES']):
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src += Glob('ports/touch/drv_touch_xpt.c')
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src += Glob('ports/touch/drv_xpt2046_init.c')
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path += [cwd + '/ports/touch']
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startup_path_prefix = SDK_LIB
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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@ -7,6 +7,7 @@
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* Date Author Notes
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* 2021-12-28 unknow copy by STemwin
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* 2021-12-29 xiangxistu port for lvgl <lcd_fill_array>
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* 2022-6-26 solar Improve the api required for resistive touch screen calibration
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*/
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#include <board.h>
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@ -472,14 +473,69 @@ void LCD_Clear(uint32_t color)
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}
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}
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void LCD_DrawLine(const char *pixel, rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2)
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{
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rt_uint16_t t;
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int xerr = 0, yerr = 0, delta_x, delta_y, distance;
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int incx, incy, uRow, uCol;
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delta_x = x2 - x1; //计算坐标增量
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delta_y = y2 - y1;
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uRow = x1;
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uCol = y1;
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if (delta_x > 0)
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incx = 1; //设置单步方向
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else if (delta_x == 0)
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incx = 0; //垂直线
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else
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{
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incx = -1;
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delta_x = -delta_x;
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}
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if (delta_y > 0)
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incy = 1;
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else if (delta_y == 0)
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incy = 0; //水平线
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else
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{
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incy = -1;
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delta_y = -delta_y;
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}
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if (delta_x > delta_y)
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distance = delta_x; //选取基本增量坐标轴
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else
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distance = delta_y;
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for (t = 0; t <= distance + 1; t++) //画线输出
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{
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// LCD_DrawPoint(uRow, uCol); //画点
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LCD_Fast_DrawPoint(pixel, uRow, uCol);
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xerr += delta_x;
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yerr += delta_y;
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if (xerr > distance)
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{
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xerr -= distance;
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uRow += incx;
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}
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if (yerr > distance)
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{
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yerr -= distance;
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uCol += incy;
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}
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}
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}
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void LCD_HLine(const char *pixel, int x1, int x2, int y)
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{
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int xsize = x2 - x1 + 1;
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LCD_SetCursor(x1, y);
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LCD_WriteRAM_Prepare();
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uint16_t *p = (uint16_t *)pixel;
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for (; xsize > 0; xsize--)
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LCD->RAM = *p;
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LCD_DrawLine(pixel, x1, y, x2, y);
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}
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void LCD_VLine(const char *pixel, int x, int y1, int y2)
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{
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LCD_DrawLine(pixel, x, y1, x, y2);
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}
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void LCD_BlitLine(const char *pixel, int x, int y, rt_size_t size)
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@ -1882,7 +1938,7 @@ struct rt_device_graphic_ops fsmc_lcd_ops =
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LCD_Fast_DrawPoint,
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LCD_ReadPoint,
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LCD_HLine,
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RT_NULL,
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LCD_VLine,
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LCD_BlitLine,
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};
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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@ -13,9 +13,15 @@
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#include "rtdevice.h"
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#include <drv_common.h>
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#ifdef BSP_USING_TOUCH_CAP
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#define LCD_W 800
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#define LCD_H 480
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#endif // BSP_USING_TOUCH_CAP
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#ifdef BSP_USING_TOUCH_RES
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#define LCD_W 320
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#define LCD_H 480
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#endif // BSP_USING_TOUCH_RES
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//LCD重要参数集
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typedef struct
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@ -49,7 +55,13 @@ typedef struct
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#define D2U_L2R 6 //从下到上,从左到右
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#define D2U_R2L 7 //从下到上,从右到左
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#define DFT_SCAN_DIR L2R_U2D //默认的扫描方向
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#ifdef BSP_USING_TOUCH_CAP
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#define DFT_SCAN_DIR L2R_U2D //电容触摸屏默认的扫描方向
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#endif // BSP_USING_TOUCH_CAP
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#ifdef BSP_USING_TOUCH_RES
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#define DFT_SCAN_DIR D2U_L2R //电阻触摸屏默认的扫描方向
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#endif // BSP_USING_TOUCH_RES
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//LCD分辨率设置
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#define SSD_HOR_RESOLUTION 800 //LCD水平分辨率
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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@ -10,7 +10,7 @@
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#include <rtconfig.h>
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#ifdef BSP_USING_TOUCH
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#ifdef BSP_USING_TOUCH_CAP
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#include "drv_touch.h"
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#include <string.h>
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@ -1,5 +1,5 @@
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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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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@ -19,7 +19,7 @@
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#include <stdint.h>
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#include <string.h>
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#ifdef BSP_USING_TOUCH
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#ifdef BSP_USING_TOUCH_CAP
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#define DBG_ENABLE
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#define DBG_SECTION_NAME "TOUCH.ft"
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@ -0,0 +1,266 @@
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/*
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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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* 2022-6-27 solar first version
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*/
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#include <drv_touch_xpt.h>
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#include <drv_soft_spi.h>
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#include <drv_spi.h>
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#include <drv_gpio.h>
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#define LOG_TAG "drv.xpt2046"
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#include <drv_log.h>
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#ifdef BSP_USING_TOUCH_RES
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static const rt_uint8_t xpt2046_tx_data[21] = {0xD0, 0, 0xD0, 0, 0xD0, 0, 0xD0, 0, 0xD0, 0, 0x90, 0, 0x90, 0, 0x90, 0, 0x90, 0, 0x90, 0, 0};
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/* Please calibrate the resistive touch screen before use, it is best to store the calibrated data */
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rt_err_t xpt2046_calibration(const char *lcd_name,const char *touch_name)
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{
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/* Find the TFT LCD device */
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rt_device_t lcd = rt_device_find(lcd_name);
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if (lcd == RT_NULL)
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{
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LOG_E(LOG_TAG " cannot find lcd device named %s", lcd_name);
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return -RT_ERROR;
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}
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if (rt_device_open(lcd, RT_DEVICE_OFLAG_RDWR) != RT_EOK)
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{
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LOG_E(LOG_TAG " cannot open lcd device named %s", lcd_name);
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return 0;
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}
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/* Find the Touch device */
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rt_xpt2046_t touch = (rt_xpt2046_t)rt_device_find(touch_name);
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if (touch == RT_NULL)
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{
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LOG_E(LOG_TAG " cannot find touch device named %s", touch_name);
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return -RT_ERROR;
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}
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/* Get TFT LCD screen information */
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struct rt_device_graphic_info lcd_info;
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rt_device_control(lcd, RTGRAPHIC_CTRL_GET_INFO, &lcd_info);
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/* clear screen */
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for (rt_uint32_t y = 0; y < lcd_info.height; ++y)
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{
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const uint32_t white = 0xFFFFFFFF;
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rt_graphix_ops(lcd)->draw_hline((const char *)(&white), 0, lcd_info.width, y);
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}
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/* Set the information for the four points used for calibration */
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rt_uint32_t cross_size = (lcd_info.width > lcd_info.height ? lcd_info.height : lcd_info.width) / 10;
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rt_uint32_t x0 = cross_size;
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rt_uint32_t y0 = cross_size;
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rt_uint32_t x1 = lcd_info.width - cross_size;
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rt_uint32_t y1 = cross_size;
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rt_uint32_t x2 = lcd_info.width - cross_size;
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rt_uint32_t y2 = lcd_info.height - cross_size;
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rt_uint32_t x3 = cross_size;
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rt_uint32_t y3 = lcd_info.height - cross_size;
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const rt_uint32_t black = 0x0;
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/* Upper left cross */
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rt_graphix_ops(lcd)->draw_hline((const char *)(&black), 0, x0 + cross_size, y0);
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rt_graphix_ops(lcd)->draw_vline((const char *)(&black), x0, 0, y0 + cross_size);
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touch->min_raw_x = 0;
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touch->min_raw_y = 0;
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touch->max_raw_x = 4096;
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touch->max_raw_y = 4096;
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touch->parent.info.range_x = 4096;
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touch->parent.info.range_y = 4096;
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rt_uint16_t x_raw[4];
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rt_uint16_t y_raw[4];
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rt_uint8_t raw_idx = 0;
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rt_memset(x_raw, 0, sizeof(x_raw));
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rt_memset(y_raw, 0, sizeof(y_raw));
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while (1)
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{
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struct rt_touch_data read_data;
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rt_memset(&read_data, 0, sizeof(struct rt_touch_data));
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if (rt_device_read((rt_device_t)touch, 0, &read_data, 1) == 1)
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{
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x_raw[raw_idx] = read_data.x_coordinate;
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y_raw[raw_idx++] = read_data.y_coordinate;
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LOG_I(" %d point capture", raw_idx - 1);
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/* After processing a point, proceed to clear the screen */
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for (rt_uint32_t y = 0; y < lcd_info.height; ++y)
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{
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const uint32_t white = 0xFFFFFFFF;
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rt_graphix_ops(lcd)->draw_hline((const char *)(&white), 0, lcd_info.width, y);
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}
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rt_thread_mdelay(400);
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if (raw_idx >= 4)
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{
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break;
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}
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switch (raw_idx)
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{
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case 1:
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/* Upper right cross */
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rt_graphix_ops(lcd)->draw_hline((const char *)(&black), x1 - cross_size, lcd_info.width, y1);
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rt_graphix_ops(lcd)->draw_vline((const char *)(&black), x1, 0, y1 + cross_size);
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break;
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case 2:
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/* lower right cross */
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rt_graphix_ops(lcd)->draw_hline((const char *)(&black), x2 - cross_size, lcd_info.width, y2);
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rt_graphix_ops(lcd)->draw_vline((const char *)(&black), x2, y2 - cross_size, lcd_info.height);
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break;
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case 3:
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/* lower left cross */
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rt_graphix_ops(lcd)->draw_hline((const char *)(&black), 0, x3 + cross_size, y3);
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rt_graphix_ops(lcd)->draw_vline((const char *)(&black), x3, y3 - cross_size, lcd_info.height);
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break;
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default:
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break;
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}
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}
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rt_thread_mdelay(10);
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}
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rt_uint16_t min_x = (x_raw[0] + x_raw[3]) / 2;
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rt_uint16_t max_x = (x_raw[1] + x_raw[2]) / 2;
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rt_uint16_t min_y = (y_raw[0] + y_raw[1]) / 2;
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rt_uint16_t max_y = (y_raw[2] + y_raw[3]) / 2;
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rt_int32_t x_raw_cnt_per_pixel = (max_x - min_x) / (x1 - x0);
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rt_int32_t y_raw_cnt_per_pixel = (max_y - min_y) / (y2 - y1);
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min_x -= cross_size * x_raw_cnt_per_pixel;
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max_x += cross_size * x_raw_cnt_per_pixel;
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min_y -= cross_size * y_raw_cnt_per_pixel;
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max_y += cross_size * y_raw_cnt_per_pixel;
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touch->min_raw_x = min_x;
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touch->min_raw_y = min_y;
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touch->max_raw_x = max_x;
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touch->max_raw_y = max_y;
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touch->parent.info.range_x = lcd_info.width;
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touch->parent.info.range_y = lcd_info.height;
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|
||||
LOG_I(" Calibration result, min_x:%d, min_y:%d, max_x:%d, max_y:%d", min_x, min_y, max_x, max_y);
|
||||
|
||||
rt_device_close(lcd);
|
||||
|
||||
return RT_EOK;
|
||||
}
|
||||
|
||||
static rt_size_t xpt2046_touch_readpoint(struct rt_touch_device *touch, void *buf, rt_size_t touch_num)
|
||||
{
|
||||
if (touch_num != 0)
|
||||
{
|
||||
struct rt_touch_data *result = (struct rt_touch_data *)buf;
|
||||
rt_xpt2046_t dev = (rt_xpt2046_t)touch;
|
||||
#ifdef RT_TOUCH_PIN_IRQ
|
||||
if (rt_pin_read(dev->parent.config.irq_pin.pin))
|
||||
{
|
||||
result->event = RT_TOUCH_EVENT_NONE;
|
||||
return 0;
|
||||
}
|
||||
#endif /* RT_TOUCH_PIN_IRQ */
|
||||
rt_uint8_t rx_data[21];
|
||||
rt_spi_transfer(dev->spi, xpt2046_tx_data, rx_data, 21);
|
||||
rt_uint8_t x_count = 0;
|
||||
rt_uint8_t y_count = 0;
|
||||
rt_uint32_t x_cum = 0;
|
||||
rt_uint32_t y_cum = 0;
|
||||
for (rt_uint8_t i = 1; i < 11; i += 2)
|
||||
{
|
||||
rt_uint16_t temp = (rx_data[i] << 8 | rx_data[i + 1]) >> 4;
|
||||
if (temp >= dev->min_raw_x && temp <= dev->max_raw_x)
|
||||
{
|
||||
++x_count;
|
||||
x_cum += temp;
|
||||
}
|
||||
temp = (rx_data[i + 10] << 8 | rx_data[i + 11]) >> 4;
|
||||
if (temp >= dev->min_raw_y && temp <= dev->max_raw_y)
|
||||
{
|
||||
++y_count;
|
||||
y_cum += temp;
|
||||
}
|
||||
}
|
||||
if (!x_count || !y_count)
|
||||
{
|
||||
result->event = RT_TOUCH_EVENT_NONE;
|
||||
return 0;
|
||||
}
|
||||
result->event = RT_TOUCH_EVENT_DOWN;
|
||||
result->x_coordinate = ((float)x_cum / x_count - dev->min_raw_x) / (dev->max_raw_x - dev->min_raw_x) * dev->parent.info.range_x;
|
||||
result->y_coordinate = ((float)y_cum / y_count - dev->min_raw_y) / (dev->max_raw_y - dev->min_raw_y) * dev->parent.info.range_y;
|
||||
return touch_num;
|
||||
}
|
||||
else
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
static rt_err_t xpt2046_touch_control(struct rt_touch_device *touch, int cmd, void *arg)
|
||||
{
|
||||
rt_err_t result = RT_EOK;
|
||||
RT_ASSERT(touch != RT_NULL);
|
||||
|
||||
/* If necessary, please implement this control function yourself */
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static struct rt_touch_ops xpt2046_ops =
|
||||
{
|
||||
.touch_readpoint = xpt2046_touch_readpoint,
|
||||
.touch_control = xpt2046_touch_control,
|
||||
};
|
||||
|
||||
static int xpt2046_hw_init(void)
|
||||
{
|
||||
rt_xpt2046_t dev_obj = rt_malloc(sizeof(struct rt_xpt2046));
|
||||
if (dev_obj != RT_NULL)
|
||||
{
|
||||
rt_memset(dev_obj, 0x0, sizeof(struct rt_xpt2046));
|
||||
dev_obj->min_raw_x = BSP_XPT2046_MIN_RAW_X;
|
||||
dev_obj->min_raw_y = BSP_XPT2046_MIN_RAW_Y;
|
||||
dev_obj->max_raw_x = BSP_XPT2046_MAX_RAW_X;
|
||||
dev_obj->max_raw_y = BSP_XPT2046_MAX_RAW_Y;
|
||||
/* spi mount and config is implemented by the user */
|
||||
dev_obj->spi = RT_NULL;
|
||||
|
||||
dev_obj->parent.info.type = RT_TOUCH_TYPE_RESISTANCE;
|
||||
dev_obj->parent.info.vendor = RT_TOUCH_VENDOR_UNKNOWN;
|
||||
dev_obj->parent.info.point_num = 1;
|
||||
dev_obj->parent.info.range_x = BSP_XPT2046_RANGE_X;
|
||||
dev_obj->parent.info.range_y = BSP_XPT2046_RANGE_Y;
|
||||
#ifdef RT_TOUCH_PIN_IRQ
|
||||
dev_obj->parent.config.irq_pin.pin = rt_pin_get(BSP_XPT2046_IRQ_PIN);
|
||||
dev_obj->parent.config.irq_pin.mode = PIN_MODE_INPUT_PULLUP;
|
||||
#endif /* RT_TOUCH_PIN_IRQ */
|
||||
dev_obj->parent.ops = &xpt2046_ops;
|
||||
|
||||
rt_uint8_t dev_num = 0;
|
||||
char dev_name[RT_NAME_MAX];
|
||||
do
|
||||
{
|
||||
rt_sprintf(dev_name, "xpt%d", dev_num++);
|
||||
if (dev_num == 255)
|
||||
{
|
||||
rt_device_destroy((rt_device_t) & (dev_obj->parent));
|
||||
return RT_NULL;
|
||||
}
|
||||
} while (rt_device_find(dev_name));
|
||||
rt_hw_touch_register(&(dev_obj->parent), dev_name, RT_DEVICE_FLAG_INT_RX, RT_NULL);
|
||||
return RT_EOK;
|
||||
}
|
||||
else
|
||||
{
|
||||
return -RT_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
INIT_DEVICE_EXPORT(xpt2046_hw_init);
|
||||
|
||||
#endif /* BSP_USING_TOUCH_RES */
|
||||
|
|
@ -0,0 +1,44 @@
|
|||
/*
|
||||
* Copyright (c) 2006-2022, RT-Thread Development Team
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2022-6-27 solar first version
|
||||
*/
|
||||
|
||||
#ifndef __DRV_XPT2046_H__
|
||||
#define __DRV_XPT2046_H__
|
||||
|
||||
#include <rtthread.h>
|
||||
#include <rtdevice.h>
|
||||
#include "touch.h"
|
||||
|
||||
#ifdef BSP_USING_TOUCH_RES
|
||||
|
||||
/* Related parameters of screen calibration, if the calibration is not performed
|
||||
* after power on, please manually set the following macro definitions */
|
||||
#define BSP_XPT2046_MIN_RAW_X 100
|
||||
#define BSP_XPT2046_MIN_RAW_Y 100
|
||||
#define BSP_XPT2046_MAX_RAW_X 1950
|
||||
#define BSP_XPT2046_MAX_RAW_Y 1950
|
||||
#define BSP_XPT2046_RANGE_X 320
|
||||
#define BSP_XPT2046_RANGE_Y 480
|
||||
|
||||
struct rt_xpt2046
|
||||
{
|
||||
struct rt_touch_device parent;
|
||||
struct rt_spi_device *spi;
|
||||
rt_uint16_t min_raw_x;
|
||||
rt_uint16_t min_raw_y;
|
||||
rt_uint16_t max_raw_x;
|
||||
rt_uint16_t max_raw_y;
|
||||
};
|
||||
typedef struct rt_xpt2046 *rt_xpt2046_t;
|
||||
|
||||
rt_err_t xpt2046_calibration(const char *lcd_name,const char *touch_name);
|
||||
|
||||
#endif /* BSP_USING_TOUCH_RES */
|
||||
|
||||
#endif /* __DRV_XPT2046_H__ */
|
||||
|
|
@ -0,0 +1,136 @@
|
|||
/*
|
||||
* Copyright (c) 2006-2022, RT-Thread Development Team
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*
|
||||
* Change Logs:
|
||||
* Date Author Notes
|
||||
* 2022-6-27 solar first version
|
||||
*/
|
||||
|
||||
#include <rtdevice.h>
|
||||
#include "drv_touch_xpt.h"
|
||||
#include "drv_soft_spi.h"
|
||||
|
||||
#ifdef PKG_USING_GUIENGINE
|
||||
#include <rtgui/event.h>
|
||||
#include <rtgui/rtgui_server.h>
|
||||
#elif defined(PKG_USING_LITTLEVGL2RTT)
|
||||
#include <littlevgl2rtt.h>
|
||||
#elif defined(PKG_USING_LVGL)
|
||||
#include <lvgl.h>
|
||||
extern void lv_port_indev_input(rt_int16_t x, rt_int16_t y, lv_indev_state_t state);
|
||||
static rt_bool_t touch_down = RT_FALSE;
|
||||
#endif /* PKG_USING_GUIENGINE */
|
||||
|
||||
#ifdef BSP_USING_TOUCH_RES
|
||||
|
||||
/* If calibration is not required, please manually modify the contents of
|
||||
* the drv_touch_xpt.h file,and set BSP_TOUCH_CALIBRATE to RT_FALSE */
|
||||
#define BSP_TOUCH_CALIBRATE RT_TRUE
|
||||
|
||||
#define BSP_XPT2046_SPI_BUS "sspi1"
|
||||
#define TOUCH_DEVICE_NAME "xpt0"
|
||||
#define TFTLCD_DEVICE_NAME "lcd"
|
||||
|
||||
void xpt2046_init_hw(void)
|
||||
{
|
||||
/* Find the touch device */
|
||||
rt_device_t touch = rt_device_find(TOUCH_DEVICE_NAME);
|
||||
if (touch == RT_NULL)
|
||||
{
|
||||
rt_kprintf("can't find touch device:%s\n", TOUCH_DEVICE_NAME);
|
||||
return;
|
||||
}
|
||||
if (rt_device_open(touch, RT_DEVICE_FLAG_INT_RX) != RT_EOK)
|
||||
{
|
||||
rt_kprintf("can't open touch device:%s\n", TOUCH_DEVICE_NAME);
|
||||
return;
|
||||
}
|
||||
|
||||
rt_uint8_t dev_num = 0;
|
||||
char dev_name[RT_NAME_MAX];
|
||||
do
|
||||
{
|
||||
rt_sprintf(dev_name, "%s%d", BSP_XPT2046_SPI_BUS, dev_num++);
|
||||
if (dev_num == 255)
|
||||
{
|
||||
return;
|
||||
}
|
||||
} while (rt_device_find(dev_name));
|
||||
|
||||
/* Mount the spi device to the spi bus, here is the soft spi,
|
||||
* if you use other spi, please modify the following */
|
||||
rt_hw_soft_spi_device_attach(BSP_XPT2046_SPI_BUS, dev_name, BSP_XPT2046_CS_PIN);
|
||||
|
||||
/* configure spi device */
|
||||
rt_xpt2046_t tc = (rt_xpt2046_t)touch;
|
||||
tc->spi = (struct rt_spi_device *)rt_device_find(dev_name);
|
||||
struct rt_spi_configuration spi_config;
|
||||
spi_config.data_width = 8;
|
||||
spi_config.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB;
|
||||
/* Max freq of XPT2046 is 2MHz */
|
||||
spi_config.max_hz = 2000000;
|
||||
rt_spi_configure(tc->spi, &spi_config);
|
||||
|
||||
#if (BSP_TOUCH_CALIBRATE == RT_TRUE)
|
||||
/* Calibrate touch */
|
||||
xpt2046_calibration(TFTLCD_DEVICE_NAME,TOUCH_DEVICE_NAME);
|
||||
#endif /* BSP_TOUCH_CALIBRATE == RT_TRUE */
|
||||
|
||||
/* init the TFT LCD */
|
||||
rt_device_t lcd = RT_NULL;
|
||||
|
||||
lcd = rt_device_find("lcd");
|
||||
rt_device_init(lcd);
|
||||
}
|
||||
|
||||
void xpt2046_entry(void *parameter)
|
||||
{
|
||||
/* Find the touch device */
|
||||
rt_device_t touch = rt_device_find(TOUCH_DEVICE_NAME);
|
||||
if (touch == RT_NULL)
|
||||
{
|
||||
rt_kprintf("can't find touch device:%s\n", TOUCH_DEVICE_NAME);
|
||||
return;
|
||||
}
|
||||
#ifndef PKG_USING_LVGL
|
||||
rt_device_t lcd = rt_device_find(TFTLCD_DEVICE_NAME);
|
||||
if (lcd == RT_NULL)
|
||||
{
|
||||
rt_kprintf("can't find display device:%s\n", TFTLCD_DEVICE_NAME);
|
||||
return;
|
||||
}
|
||||
#endif /* PKG_USING_LVGL */
|
||||
while (1)
|
||||
{
|
||||
/* Prepare variable to read out the touch data */
|
||||
struct rt_touch_data read_data;
|
||||
rt_memset(&read_data, 0, sizeof(struct rt_touch_data));
|
||||
if (rt_device_read(touch, 0, &read_data, 1) == 1)
|
||||
{
|
||||
#ifdef PKG_USING_LVGL
|
||||
lv_port_indev_input(read_data.x_coordinate, read_data.y_coordinate,
|
||||
((read_data.event = RT_TOUCH_EVENT_DOWN) ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL));
|
||||
#else /* PKG_USING_LVGL */
|
||||
const rt_uint32_t black = 0x0;
|
||||
rt_graphix_ops(lcd)->set_pixel((const char *)(&black),
|
||||
read_data.x_coordinate,
|
||||
read_data.y_coordinate);
|
||||
#endif /* PKG_USING_LVGL */
|
||||
}
|
||||
rt_thread_mdelay(1);
|
||||
}
|
||||
}
|
||||
|
||||
static int touch_xpt2046_init(void)
|
||||
{
|
||||
xpt2046_init_hw();
|
||||
rt_thread_t tid = rt_thread_create("xpt2046", xpt2046_entry, RT_NULL, 1024, 8, 20);
|
||||
RT_ASSERT(tid != RT_NULL);
|
||||
rt_thread_startup(tid);
|
||||
return RT_EOK;
|
||||
}
|
||||
INIT_COMPONENT_EXPORT(touch_xpt2046_init);
|
||||
|
||||
#endif /* BSP_USING_TOUCH_RES */
|
||||
Loading…
Reference in New Issue