/* * Copyright (c) 2006-2022, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2020-08-10 zylx first version * 2022-02-01 Rudy Lo add lcd_fill_array function */ #include #ifdef BSP_USING_SPI_LCD_ILI9488 #include #include "drv_spi.h" #include "drv_spi_ili9488.h" #include #include "drv_lcd_font.h" #include #include #if defined(PKG_USING_GUIENGINE) #include #endif #define DRV_DEBUG #define LOG_TAG "drv.spi_lcd" #include #define LCD_DC_PIN GET_PIN(C, 7) #define LCD_DEVICE(dev) (struct drv_lcd_device*)(dev) #define LCD_CLEAR_SEND_NUMBER (LCD_H * LCD_W *3) static rt_uint32_t BACK_COLOR = WHITE, FORE_COLOR = BLACK; static struct rt_spi_device *spi_dev_lcd; static int rt_hw_lcd_config(void) { spi_dev_lcd = (struct rt_spi_device *)rt_device_find("spi20"); /* config spi */ { struct rt_spi_configuration cfg; cfg.data_width = 8; cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB; cfg.max_hz = 50 * 1000 * 1000; rt_spi_configure(spi_dev_lcd, &cfg); } return RT_EOK; } static rt_err_t lcd_write_cmd(const rt_uint8_t cmd) { rt_size_t len; rt_pin_write(LCD_DC_PIN, PIN_LOW); len = rt_spi_send(spi_dev_lcd, &cmd, 1); if (len != 1) { LOG_I("lcd_write_cmd error. %d", len); return -RT_ERROR; } else { return RT_EOK; } } static rt_err_t lcd_write_data(const rt_uint8_t data) { rt_size_t len; rt_pin_write(LCD_DC_PIN, PIN_HIGH); len = rt_spi_send(spi_dev_lcd, &data, 1); if (len != 1) { LOG_I("lcd_write_data error. %d", len); return -RT_ERROR; } else { return RT_EOK; } } static rt_err_t lcd_write_half_word(const rt_uint16_t da) { rt_size_t len; char data[2] = {0}; data[0] = da >> 8; data[1] = da; rt_pin_write(LCD_DC_PIN, PIN_HIGH); len = rt_spi_send(spi_dev_lcd, data, 2); if (len != 2) { LOG_I("lcd_write_half_word error. %d", len); return -RT_ERROR; } else { return RT_EOK; } } static rt_err_t lcd_write_three_bytes(const rt_uint32_t da) { rt_size_t len; char data[3] = {0}; data[0] = da >> 16; data[1] = da >> 8; data[2] = da; rt_pin_write(LCD_DC_PIN, PIN_HIGH); len = rt_spi_send(spi_dev_lcd, data, 3); if (len != 3) { LOG_I("lcd_write_half_word error. %d", len); return -RT_ERROR; } else { return RT_EOK; } } static void lcd_gpio_init(void) { rt_hw_lcd_config(); __HAL_RCC_GPIOC_CLK_ENABLE(); rt_pin_mode(LCD_DC_PIN, PIN_MODE_OUTPUT); rt_pin_mode(LCD_BL_PIN, PIN_MODE_OUTPUT); rt_pin_mode(LCD_RES_PIN, PIN_MODE_OUTPUT); rt_pin_write(LCD_BL_PIN, PIN_LOW); } int rt_hw_spi_lcd_init(void) { __HAL_RCC_GPIOI_CLK_ENABLE(); rt_hw_spi_device_attach("spi2", "spi20", GPIOI, GPIO_PIN_0); lcd_gpio_init(); rt_pin_write(LCD_RES_PIN, PIN_HIGH); rt_thread_mdelay(10); rt_pin_write(LCD_RES_PIN, PIN_LOW); rt_thread_mdelay(50); rt_pin_write(LCD_RES_PIN, PIN_HIGH); rt_thread_mdelay(200); //************* Start Initial Sequence **********// lcd_write_cmd(0xE0); lcd_write_data(0x00); lcd_write_data(0x07); lcd_write_data(0x0f); lcd_write_data(0x0D); lcd_write_data(0x1B); lcd_write_data(0x0A); lcd_write_data(0x3c); lcd_write_data(0x78); lcd_write_data(0x4A); lcd_write_data(0x07); lcd_write_data(0x0E); lcd_write_data(0x09); lcd_write_data(0x1B); lcd_write_data(0x1e); lcd_write_data(0x0f); lcd_write_cmd(0xE1); lcd_write_data(0x00); lcd_write_data(0x22); lcd_write_data(0x24); lcd_write_data(0x06); lcd_write_data(0x12); lcd_write_data(0x07); lcd_write_data(0x36); lcd_write_data(0x47); lcd_write_data(0x47); lcd_write_data(0x06); lcd_write_data(0x0a); lcd_write_data(0x07); lcd_write_data(0x30); lcd_write_data(0x37); lcd_write_data(0x0f); lcd_write_cmd(0xC0); lcd_write_data(0x10); lcd_write_data(0x10); lcd_write_cmd(0xC1); lcd_write_data(0x41); lcd_write_cmd(0xC5); lcd_write_data(0x00); lcd_write_data(0x22); lcd_write_data(0x80); lcd_write_cmd(0x36); #ifndef LCD_HOR_SCREEN lcd_write_data(0x48); #else lcd_write_data(0x28); #endif lcd_write_cmd(0x3A); //Interface Mode Control lcd_write_data(0x66); lcd_write_cmd(0XB0); //Interface Mode Control lcd_write_data(0x00); lcd_write_cmd(0xB1); //Frame rate 70HZ lcd_write_data(0xB0); lcd_write_data(0x11); lcd_write_cmd(0xB4); lcd_write_data(0x02); lcd_write_cmd(0xB6); //RGB/MCU Interface Control lcd_write_data(0x02); lcd_write_data(0x02); lcd_write_cmd(0xB7); lcd_write_data(0xC6); lcd_write_cmd(0xE9); lcd_write_data(0x00); lcd_write_cmd(0XF7); lcd_write_data(0xA9); lcd_write_data(0x51); lcd_write_data(0x2C); lcd_write_data(0x82); lcd_fill(0, 0, LCD_WIDTH, LCD_HEIGHT, LCD_FULL_COLOR); lcd_write_cmd(0x11); rt_thread_mdelay(120); lcd_write_cmd(0x29); rt_thread_mdelay(50); //delay screen update to prevent screen appears white when the default color is black return RT_EOK; } /** * Set background color and foreground color * * @param back background color * @param fore fore color * * @return void */ void lcd_set_color(rt_uint32_t back, rt_uint32_t fore) { BACK_COLOR = back; FORE_COLOR = fore; } void lcd_display_on(void) { rt_pin_write(LCD_BL_PIN, PIN_HIGH); } void lcd_display_off(void) { rt_pin_write(LCD_BL_PIN, PIN_LOW); } /* lcd enter the minimum power consumption mode and backlight off. */ void lcd_enter_sleep(void) { lcd_display_off(); rt_thread_mdelay(5); lcd_write_cmd(0x28); rt_thread_mdelay(10); lcd_write_cmd(0x10); rt_thread_mdelay(120); } /* lcd turn off sleep mode and backlight on. */ void lcd_exit_sleep(void) { lcd_display_on(); rt_thread_mdelay(5); lcd_write_cmd(0x11); rt_thread_mdelay(120); lcd_write_cmd(0x29); } /** * Set drawing area * * @param x1 start of x position * @param y1 start of y position * @param x2 end of x position * @param y2 end of y position * * @return void */ void lcd_address_set(rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2) { lcd_write_cmd(0x2a); lcd_write_data(x1 >> 8); lcd_write_data(x1); lcd_write_data(x2 >> 8); lcd_write_data(x2); lcd_write_cmd(0x2b); lcd_write_data(y1 >> 8); lcd_write_data(y1); lcd_write_data(y2 >> 8); lcd_write_data(y2); lcd_write_cmd(0x2C); } /** * clear the lcd. * * @param color Fill color * * @return void */ void lcd_clear(rt_uint32_t color) { rt_uint32_t i, j; rt_uint8_t data[3] = {0}; rt_uint8_t *buf = RT_NULL; data[0] = color >> 16; data[1] = color >> 8; data[2] = color; lcd_address_set(0, 0, LCD_WIDTH - 1, LCD_HEIGHT - 1); buf = rt_malloc(LCD_BUF_SIZE); if (buf) { /* color is 16 bit */ for (j = 0; j < LCD_BUF_SIZE / 3; j++) { buf[j * 3] = data[0]; buf[j * 3 + 1] = data[1]; buf[j * 3 + 2] = data[2]; } rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, buf, LCD_BUF_SIZE); rt_free(buf); } else { rt_pin_write(LCD_DC_PIN, PIN_HIGH); for (i = 0; i < LCD_WIDTH; i++) { for (j = 0; j < LCD_HEIGHT; j++) { rt_spi_send(spi_dev_lcd, data, 3); } } } } /** * display a point on the lcd using the given colour. * * @param x x position * @param y y position * @param color color of point * * @return void */ void lcd_draw_point_color(rt_uint16_t x, rt_uint16_t y, rt_uint32_t color) { lcd_address_set(x, y, x, y); lcd_write_three_bytes(color); } /** * display a point on the lcd. * * @param x x position * @param y y position * * @return void */ void lcd_draw_point(rt_uint16_t x, rt_uint16_t y) { lcd_draw_point_color(x, y, FORE_COLOR); } /** * full color on the lcd. * * @param x_start start of x position * @param y_start start of y position * @param x_end end of x position * @param y_end end of y position * @param color Fill color * * @return void */ void lcd_fill(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_uint16_t y_end, rt_uint32_t color) { rt_uint32_t i = 0, j = 0; rt_uint32_t size = 0, size_remain = 0; rt_uint8_t *fill_buf = RT_NULL; size = (x_end - x_start) * (y_end - y_start) * 3; if (size > LCD_CLEAR_SEND_NUMBER) { /* the number of remaining to be filled */ size_remain = size - LCD_CLEAR_SEND_NUMBER; size = LCD_CLEAR_SEND_NUMBER; } lcd_address_set(x_start, y_start, x_end, y_end); fill_buf = (rt_uint8_t *)rt_malloc(LCD_CLEAR_SEND_NUMBER); if (fill_buf) { /* fast fill */ while (1) { for (i = 0; i < size / 3; i++) { fill_buf[3 * i] = color >> 16; fill_buf[3 * i + 1] = color >> 8; fill_buf[3 * i + 2] = color; } rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, fill_buf, size); /* Fill completed */ if (size_remain == 0) break; /* calculate the number of fill next time */ if (size_remain > LCD_CLEAR_SEND_NUMBER) { size_remain = size_remain - LCD_CLEAR_SEND_NUMBER; } else { size = size_remain; size_remain = 0; } } rt_free(fill_buf); } else { for (i = y_start; i <= y_end; i++) { for (j = x_start; j <= x_end; j++)lcd_write_three_bytes(color); } } } /** * full color array on the lcd. * * @param x_start start of x position * @param y_start start of y position * @param x_end end of x position * @param y_end end of y position * @param pcolor Fill color array's pointer * * @return void */ void lcd_fill_array(rt_uint16_t x_start, rt_uint16_t y_start, rt_uint16_t x_end, rt_uint16_t y_end, void *pcolor) { rt_uint32_t size = 0; rt_uint8_t *array = RT_NULL; size = (x_end - x_start + 1) * (y_end - y_start + 1) * 3 /* 24bit */; array = (rt_uint8_t *)rt_malloc(size); if (!array) { LOG_E("not enough memory"); return ; } rt_uint32_t *color_p = (rt_uint32_t *)pcolor; for (rt_uint16_t i = 0; i < size / 3; i++) { array[3 * i] = *color_p >> 16; array[3 * i + 1] = *color_p >> 8; array[3 * i + 2] = *color_p; color_p++; } lcd_address_set(x_start, y_start, x_end, y_end); rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, array, size); rt_free(array); } /** * display a line on the lcd. * * @param x1 x1 position * @param y1 y1 position * @param x2 x2 position * @param y2 y2 position * * @return void */ void lcd_draw_line(rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2) { rt_uint16_t t; rt_uint32_t i = 0; int xerr = 0, yerr = 0, delta_x, delta_y, distance; int incx, incy, row, col; if (y1 == y2) { /* fast draw transverse line */ lcd_address_set(x1, y1, x2, y2); rt_uint8_t line_buf[960] = {0}; for (i = 0; i < x2 - x1; i++) { line_buf[3 * i] = FORE_COLOR >> 16; line_buf[3 * i + 1] = FORE_COLOR >> 8; line_buf[3 * i + 2] = FORE_COLOR; } rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, line_buf, (x2 - x1) * 3); return ; } delta_x = x2 - x1; delta_y = y2 - y1; row = x1; col = y1; if (delta_x > 0)incx = 1; else if (delta_x == 0)incx = 0; else { incx = -1; delta_x = -delta_x; } if (delta_y > 0)incy = 1; else if (delta_y == 0)incy = 0; else { incy = -1; delta_y = -delta_y; } if (delta_x > delta_y)distance = delta_x; else distance = delta_y; for (t = 0; t <= distance + 1; t++) { lcd_draw_point(row, col); xerr += delta_x ; yerr += delta_y ; if (xerr > distance) { xerr -= distance; row += incx; } if (yerr > distance) { yerr -= distance; col += incy; } } } /** * display a rectangle on the lcd. * * @param x1 x1 position * @param y1 y1 position * @param x2 x2 position * @param y2 y2 position * * @return void */ void lcd_draw_rectangle(rt_uint16_t x1, rt_uint16_t y1, rt_uint16_t x2, rt_uint16_t y2) { lcd_draw_line(x1, y1, x2, y1); lcd_draw_line(x1, y1, x1, y2); lcd_draw_line(x1, y2, x2, y2); lcd_draw_line(x2, y1, x2, y2); } /** * display a circle on the lcd. * * @param x x position of Center * @param y y position of Center * @param r radius * * @return void */ void lcd_draw_circle(rt_uint16_t x0, rt_uint16_t y0, rt_uint8_t r) { int a, b; int di; a = 0; b = r; di = 3 - (r << 1); while (a <= b) { lcd_draw_point(x0 - b, y0 - a); lcd_draw_point(x0 + b, y0 - a); lcd_draw_point(x0 - a, y0 + b); lcd_draw_point(x0 - b, y0 - a); lcd_draw_point(x0 - a, y0 - b); lcd_draw_point(x0 + b, y0 + a); lcd_draw_point(x0 + a, y0 - b); lcd_draw_point(x0 + a, y0 + b); lcd_draw_point(x0 - b, y0 + a); a++; //Bresenham if (di < 0)di += 4 * a + 6; else { di += 10 + 4 * (a - b); b--; } lcd_draw_point(x0 + a, y0 + b); } } static void lcd_show_char(rt_uint16_t x, rt_uint16_t y, rt_uint8_t data, rt_uint32_t size) { rt_uint8_t temp; rt_uint8_t num = 0;; rt_uint8_t pos, t; rt_uint32_t colortemp = FORE_COLOR; rt_uint8_t *font_buf = RT_NULL; if (x > LCD_WIDTH - size / 2 || y > LCD_HEIGHT - size)return; data = data - ' '; #ifdef ASC2_1608 if (size == 16) { lcd_address_set(x, y, x + size / 2 - 1, y + size - 1);//(x,y,x+8-1,y+16-1) font_buf = (rt_uint8_t *)rt_malloc(size * size / 2 * 3); if (!font_buf) { /* fast show char */ for (pos = 0; pos < size * (size / 2) / 8; pos++) { temp = asc2_1608[(rt_uint16_t)data * size * (size / 2) / 8 + pos]; for (t = 0; t < 8; t++) { if (temp & 0x80)colortemp = FORE_COLOR; else colortemp = BACK_COLOR; lcd_write_three_bytes(colortemp); temp <<= 1; } } } else { for (pos = 0; pos < size * (size / 2) / 8; pos++) { temp = asc2_1608[(rt_uint16_t)data * size * (size / 2) / 8 + pos]; for (t = 0; t < 8; t++) { if (temp & 0x80)colortemp = FORE_COLOR; else colortemp = BACK_COLOR; font_buf[3 * (8 * pos + t)] = colortemp >> 16; font_buf[3 * (8 * pos + t) + 1] = colortemp >> 8; font_buf[3 * (8 * pos + t) + 2] = colortemp; temp <<= 1; } } rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, font_buf, size * size / 2 * 3); rt_free(font_buf); } } else #endif #ifdef ASC2_2412 if (size == 24) { lcd_address_set(x, y, x + size / 2 - 1, y + size - 1); font_buf = (rt_uint8_t *)rt_malloc(size * size / 2 * 3); if (!font_buf) { /* fast show char */ for (pos = 0; pos < (size * 16) / 8; pos++) { temp = asc2_2412[(rt_uint16_t)data * (size * 16) / 8 + pos]; if (pos % 2 == 0) { num = 8; } else { num = 4; } for (t = 0; t < num; t++) { if (temp & 0x80)colortemp = FORE_COLOR; else colortemp = BACK_COLOR; lcd_write_three_bytes(colortemp); temp <<= 1; } } } else { for (pos = 0; pos < (size * 16) / 8; pos++) { temp = asc2_2412[(rt_uint16_t)data * (size * 16) / 8 + pos]; if (pos % 2 == 0) { num = 8; } else { num = 4; } for (t = 0; t < num; t++) { if (temp & 0x80)colortemp = FORE_COLOR; else colortemp = BACK_COLOR; if (num == 8) { font_buf[3 * (12 * (pos / 2) + t)] = colortemp >> 16; font_buf[3 * (12 * (pos / 2) + t) + 1] = colortemp >> 8; font_buf[3 * (12 * (pos / 2) + t) + 2] = colortemp; } else { font_buf[3 * (8 + 12 * (pos / 2) + t)] = colortemp >> 16; font_buf[3 * (8 + 12 * (pos / 2) + t) + 1] = colortemp >> 8; font_buf[3 * (8 + 12 * (pos / 2) + t) + 2] = colortemp; } temp <<= 1; } } rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, font_buf, size * size / 2 * 3); rt_free(font_buf); } } else #endif #ifdef ASC2_3216 if (size == 32) { lcd_address_set(x, y, x + size / 2 - 1, y + size - 1); font_buf = (rt_uint8_t *)rt_malloc(size * size / 2 * 3); if (!font_buf) { /* fast show char */ for (pos = 0; pos < size * (size / 2) / 8; pos++) { temp = asc2_3216[(rt_uint16_t)data * size * (size / 2) / 8 + pos]; for (t = 0; t < 8; t++) { if (temp & 0x80)colortemp = FORE_COLOR; else colortemp = BACK_COLOR; lcd_write_three_bytes(colortemp); temp <<= 1; } } } else { for (pos = 0; pos < size * (size / 2) / 8; pos++) { temp = asc2_3216[(rt_uint16_t)data * size * (size / 2) / 8 + pos]; for (t = 0; t < 8; t++) { if (temp & 0x80)colortemp = FORE_COLOR; else colortemp = BACK_COLOR; font_buf[3 * (8 * pos + t)] = colortemp >> 16; font_buf[3 * (8 * pos + t) + 1] = colortemp >> 8; font_buf[3 * (8 * pos + t) + 2] = colortemp; temp <<= 1; } } rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, font_buf, size * size / 2 * 3); rt_free(font_buf); } } else #endif { LOG_E("There is no any define ASC2_1208 && ASC2_2412 && ASC2_2416 && ASC2_3216 !"); } } /** * display the number on the lcd. * * @param x x position * @param y y position * @param num number * @param len length of number * @param size size of font * * @return void */ void lcd_show_num(rt_uint16_t x, rt_uint16_t y, rt_uint32_t num, rt_uint8_t len, rt_uint32_t size) { lcd_show_string(x, y, size, "%d", num); } /** * display the string on the lcd. * * @param x x position * @param y y position * @param size size of font * @param p the string to be display * * @return 0: display success * -1: size of font is not support */ rt_err_t lcd_show_string(rt_uint16_t x, rt_uint16_t y, rt_uint32_t size, const char *fmt, ...) { #define LCD_STRING_BUF_LEN 128 va_list args; rt_uint8_t buf[LCD_STRING_BUF_LEN] = {0}; rt_uint8_t *p = RT_NULL; if (size != 16 && size != 24 && size != 32) { LOG_E("font size(%d) is not support!", size); return -RT_ERROR; } va_start(args, fmt); rt_vsnprintf((char *)buf, 100, (const char *)fmt, args); va_end(args); p = buf; while (*p != '\0') { if (x > LCD_WIDTH - size / 2) { x = 0; y += size; } if (y > LCD_HEIGHT - size) { y = x = 0; lcd_clear(RED); } lcd_show_char(x, y, *p, size); x += size / 2; p++; } return RT_EOK; } /** * display the image on the lcd. * * @param x x position * @param y y position * @param length length of image * @param wide wide of image * @param p image * * @return 0: display success * -1: the image is too large */ rt_err_t lcd_show_image(rt_uint16_t x, rt_uint16_t y, rt_uint16_t length, rt_uint16_t wide, const rt_uint8_t *p) { RT_ASSERT(p); if (x + length > LCD_WIDTH || y + wide > LCD_HEIGHT) { return -RT_ERROR; } lcd_address_set(x, y, x + length - 1, y + wide - 1); rt_pin_write(LCD_DC_PIN, PIN_HIGH); rt_spi_send(spi_dev_lcd, p, length * wide * 3); return RT_EOK; } struct drv_lcd_device { struct rt_device parent; struct rt_device_graphic_info lcd_info; struct rt_semaphore lcd_lock; /* 0:front_buf is being used 1: back_buf is being used*/ rt_uint8_t cur_buf; rt_uint8_t *front_buf; rt_uint8_t *back_buf; }; struct drv_lcd_device _lcd; static rt_err_t drv_lcd_init(struct rt_device *device) { struct drv_lcd_device *lcd = LCD_DEVICE(device); /* nothing, right now */ lcd = lcd; return RT_EOK; } static rt_err_t drv_lcd_control(struct rt_device *device, int cmd, void *args) { struct drv_lcd_device *lcd = LCD_DEVICE(device); struct rt_device_rect_info *rect_info = RT_NULL; uint32_t data_start_addr = 0; uint32_t i = 0; switch (cmd) { case RTGRAPHIC_CTRL_RECT_UPDATE: { /* update */ rect_info = (struct rt_device_rect_info *)args; if(rect_info != NULL) { data_start_addr = rect_info->y * LCD_BYTES_PER_PIXEL * LCD_WIDTH + rect_info->x * LCD_BYTES_PER_PIXEL; for(i = 0; i < rect_info->height; i++) { memcpy(&_lcd.front_buf[i * LCD_BYTES_PER_PIXEL * rect_info->width], &_lcd.lcd_info.framebuffer[data_start_addr + i * LCD_BYTES_PER_PIXEL * LCD_WIDTH], rect_info->width * LCD_BYTES_PER_PIXEL); } lcd_show_image(rect_info->x, rect_info->y, rect_info->width, rect_info->height, _lcd.front_buf); } else { memcpy(_lcd.front_buf, _lcd.lcd_info.framebuffer, LCD_BUF_SIZE); lcd_show_image(0, 0, LCD_WIDTH, LCD_HEIGHT, _lcd.front_buf); } } break; case RTGRAPHIC_CTRL_GET_INFO: { struct rt_device_graphic_info *info = (struct rt_device_graphic_info *)args; RT_ASSERT(info != RT_NULL); info->pixel_format = lcd->lcd_info.pixel_format; info->bits_per_pixel = lcd->lcd_info.bits_per_pixel; info->width = lcd->lcd_info.width; info->height = lcd->lcd_info.height; info->framebuffer = lcd->lcd_info.framebuffer; } break; } return RT_EOK; } #if defined(LCD_BACKLIGHT_USING_GPIO) void turn_on_lcd_backlight(void) { rt_pin_mode(LCD_BL_PIN, PIN_MODE_OUTPUT); rt_pin_write(LCD_BL_PIN, PIN_HIGH); } #else void turn_on_lcd_backlight(void) { } #endif #ifdef RT_USING_DEVICE_OPS const static struct rt_device_ops lcd_ops = { drv_lcd_init, RT_NULL, RT_NULL, RT_NULL, RT_NULL, drv_lcd_control }; #endif int drv_lcd_ili9488_hw_init(void) { rt_err_t result = RT_EOK; struct rt_device *device = &_lcd.parent; /* memset _lcd to zero */ memset(&_lcd, 0x00, sizeof(_lcd)); /* init lcd_lock semaphore */ result = rt_sem_init(&_lcd.lcd_lock, "lcd_lock", 0, RT_IPC_FLAG_FIFO); if (result != RT_EOK) { LOG_E("init semaphore failed!\n"); result = -RT_ENOMEM; goto __exit; } /* config LCD dev info */ _lcd.lcd_info.height = LCD_HEIGHT; _lcd.lcd_info.width = LCD_WIDTH; _lcd.lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL; _lcd.lcd_info.pixel_format = LCD_PIXEL_FORMAT; /* malloc memory for double Buffering */ _lcd.lcd_info.framebuffer = rt_malloc(LCD_BUF_SIZE); _lcd.front_buf = rt_malloc(LCD_BUF_SIZE); if (_lcd.lcd_info.framebuffer == RT_NULL || _lcd.front_buf == RT_NULL) { LOG_E("init frame buffer failed!\n"); result = -RT_ENOMEM; goto __exit; } /* memset buff to 0xFF */ memset(_lcd.lcd_info.framebuffer, 0xFF, LCD_BUF_SIZE); memset(_lcd.front_buf, 0xFF, LCD_BUF_SIZE); device->type = RT_Device_Class_Graphic; #ifdef RT_USING_DEVICE_OPS device->ops = &lcd_ops; #else device->init = drv_lcd_init; device->control = drv_lcd_control; #endif /* register lcd device */ rt_device_register(device, "lcd", RT_DEVICE_FLAG_RDWR); /* init spi lcd */ if (rt_hw_spi_lcd_init() != RT_EOK) { result = -RT_ERROR; goto __exit; } else { turn_on_lcd_backlight(); } #if defined(PKG_USING_GUIENGINE) rtgui_graphic_set_device(device); #endif __exit: if (result != RT_EOK) { rt_sem_detach(&_lcd.lcd_lock); if (_lcd.lcd_info.framebuffer) { rt_free(_lcd.lcd_info.framebuffer); } if (_lcd.back_buf) { rt_free(_lcd.back_buf); } if (_lcd.front_buf) { rt_free(_lcd.front_buf); } } return result; } INIT_COMPONENT_EXPORT(drv_lcd_ili9488_hw_init); #ifdef DRV_DEBUG #ifdef FINSH_USING_MSH int ili9488_test() { struct drv_lcd_device *lcd; lcd = (struct drv_lcd_device *)rt_device_find("lcd"); struct rt_device_rect_info rect_info = {0, 0, LCD_WIDTH, LCD_HEIGHT}; uint32_t i = 0; lcd_clear(WHITE); lcd_show_image(0, 0, 240, 69, image_rttlogo); lcd_set_color(WHITE, BLACK); lcd_show_string(10, 69, 16, "Hello, RT-Thread!"); lcd_show_string(10, 69+16, 24, "RT-Thread"); lcd_show_string(10, 69+16+24, 32, "RT-Thread"); lcd_draw_line(0, 69+16+24+32, LCD_H, 69+16+24+32); lcd_draw_point(160, 310); for (int i = 0; i < 150; i += 4) { lcd_draw_circle(160, 310, i); } rt_thread_mdelay(2000); while (1) { i += 10; if(i >= 120) { i = 0; } rect_info.x = i; rect_info.y = i; rect_info.width =LCD_WIDTH - 2 * i; rect_info.height =LCD_HEIGHT - 2 * i; /* red */ for (int i = 0; i < LCD_BUF_SIZE / 3; i++) { lcd->lcd_info.framebuffer[3 * i] = 0xFF; lcd->lcd_info.framebuffer[3 * i + 1] = 0x00; lcd->lcd_info.framebuffer[3 * i + 2] = 0x00; } lcd->parent.control(&lcd->parent, RTGRAPHIC_CTRL_RECT_UPDATE, &rect_info); rt_thread_mdelay(1000); /* green */ for (int i = 0; i < LCD_BUF_SIZE / 3; i++) { lcd->lcd_info.framebuffer[3 * i] = 0x00; lcd->lcd_info.framebuffer[3 * i + 1] = 0xFF; lcd->lcd_info.framebuffer[3 * i + 2] = 0x00; } lcd->parent.control(&lcd->parent, RTGRAPHIC_CTRL_RECT_UPDATE, &rect_info); rt_thread_mdelay(1000); /* blue */ for (int i = 0; i < LCD_BUF_SIZE / 3; i++) { lcd->lcd_info.framebuffer[3 * i] = 0x00; lcd->lcd_info.framebuffer[3 * i + 1] = 0x00; lcd->lcd_info.framebuffer[3 * i + 2] = 0xFF; } lcd->parent.control(&lcd->parent, RTGRAPHIC_CTRL_RECT_UPDATE, &rect_info); rt_thread_mdelay(1000); } } MSH_CMD_EXPORT(ili9488_test, test ili9488 driver); #endif /* FINSH_USING_MSH */ #endif /* DRV_DEBUG */ #endif /* BSP_USING_SPI_LCD_ILI9488 */