/* * Copyright (c) 2006-2022, Synwit Technology Co.,Ltd. * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2022-02-25 lik first version */ #include "drv_rgb_lcd.h" #ifdef BSP_USING_RGB_LCD #include "rgb_lcd_port.h" #define DRV_DEBUG #define LOG_TAG "drv.rgb_lcd" #include <drv_log.h> #define LCD_DEVICE(dev) (struct swm_rgb_lcd_device *)(dev) struct swm_rgb_lcd_device rgb_lcd_obj; static rt_err_t swm_rgb_lcd_configure(struct rt_device *device) { struct swm_rgb_lcd_device *rgb_lcd = LCD_DEVICE(device); /* nothing, right now */ rgb_lcd = rgb_lcd; return RT_EOK; } static rt_err_t swm_rgb_lcd_control(struct rt_device *device, int cmd, void *args) { struct swm_rgb_lcd_device *rgb_lcd = LCD_DEVICE(device); switch (cmd) { 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 = rgb_lcd->lcd_info.pixel_format; info->bits_per_pixel = rgb_lcd->lcd_info.bits_per_pixel; info->width = rgb_lcd->lcd_info.width; info->height = rgb_lcd->lcd_info.height; info->framebuffer = rgb_lcd->lcd_info.framebuffer; } break; default: return -RT_EINVAL; } return RT_EOK; } #if defined(LCD_BACKLIGHT_USING_PWM) static void turn_on_lcd_backlight(void) { struct rt_device_pwm *pwm_dev; /* turn on the LCD backlight */ pwm_dev = (struct rt_device_pwm *)rt_device_find(LCD_PWM_DEV_NAME); /* pwm frequency:100K = 10000ns */ rt_pwm_set(pwm_dev, LCD_PWM_DEV_CHANNEL, 10000, 10000); rt_pwm_enable(pwm_dev, LCD_PWM_DEV_CHANNEL); } #elif defined(LCD_BACKLIGHT_USING_GPIO) static void turn_on_lcd_backlight(void) { rt_pin_mode(LCD_DISP_GPIO, PIN_MODE_OUTPUT); rt_pin_write(LCD_DISP_GPIO, PIN_HIGH); rt_pin_mode(LCD_BL_GPIO, PIN_MODE_OUTPUT); rt_pin_write(LCD_BL_GPIO, PIN_HIGH); } #else static void turn_on_lcd_backlight(void) { } #endif #ifdef RT_USING_DEVICE_OPS static const struct rt_device_ops swm_lcd_ops = { .init = swm_rgb_lcd_configure, .open = RT_NULL, .close = RT_NULL, .read = RT_NULL, .write = RT_NULL, .control = swm_rgb_lcd_control}; #endif int swm_rgb_lcd_init(void) { rt_err_t result = RT_EOK; struct rt_device *device = &rgb_lcd_obj.parent; /* memset rgb_lcd_obj to zero */ memset(&rgb_lcd_obj, 0x00, sizeof(rgb_lcd_obj)); /* config LCD dev info */ rgb_lcd_obj.lcd_info.height = LCD_HEIGHT; rgb_lcd_obj.lcd_info.width = LCD_WIDTH; rgb_lcd_obj.lcd_info.bits_per_pixel = LCD_BITS_PER_PIXEL; rgb_lcd_obj.lcd_info.pixel_format = LCD_PIXEL_FORMAT; /* malloc memory for Triple Buffering */ rgb_lcd_obj.lcd_info.framebuffer = rt_malloc_align(LCD_BUF_SIZE,4); if (rgb_lcd_obj.lcd_info.framebuffer == RT_NULL) { LOG_E("init frame buffer failed!\n"); result = -RT_ENOMEM; goto __exit; } /* memset buff to 0xFF */ memset(rgb_lcd_obj.lcd_info.framebuffer, 0xFF, LCD_BUF_SIZE); device->type = RT_Device_Class_Graphic; #ifdef RT_USING_DEVICE_OPS device->ops = &swm_lcd_ops; #else device->init = swm_rgb_lcd_configure; device->control = swm_rgb_lcd_control; #endif /* register lcd device */ rt_device_register(device, "rgb_lcd", RT_DEVICE_FLAG_RDWR); LCD_InitStructure LCD_initStruct; // PORT_Init(PORTB, PIN1, PORTB_PIN1_LCD_B0, 0); // PORT_Init(PORTB, PIN11, PORTB_PIN11_LCD_B1, 0); // PORT_Init(PORTB, PIN13, PORTB_PIN13_LCD_B2, 0); PORT_Init(PORTB, PIN15, PORTB_PIN15_LCD_B3, 0); PORT_Init(PORTA, PIN2, PORTA_PIN2_LCD_B4, 0); PORT_Init(PORTA, PIN9, PORTA_PIN9_LCD_B5, 0); PORT_Init(PORTA, PIN10, PORTA_PIN10_LCD_B6, 0); PORT_Init(PORTA, PIN11, PORTA_PIN11_LCD_B7, 0); // PORT_Init(PORTA, PIN12, PORTA_PIN12_LCD_G0, 0); // PORT_Init(PORTA, PIN13, PORTA_PIN13_LCD_G1, 0); PORT_Init(PORTA, PIN14, PORTA_PIN14_LCD_G2, 0); PORT_Init(PORTA, PIN15, PORTA_PIN15_LCD_G3, 0); PORT_Init(PORTC, PIN0, PORTC_PIN0_LCD_G4, 0); PORT_Init(PORTC, PIN1, PORTC_PIN1_LCD_G5, 0); PORT_Init(PORTC, PIN2, PORTC_PIN2_LCD_G6, 0); PORT_Init(PORTC, PIN3, PORTC_PIN3_LCD_G7, 0); // PORT_Init(PORTC, PIN4, PORTC_PIN4_LCD_R0, 0); // PORT_Init(PORTC, PIN5, PORTC_PIN5_LCD_R1, 0); // PORT_Init(PORTC, PIN8, PORTC_PIN8_LCD_R2, 0); PORT_Init(PORTC, PIN9, PORTC_PIN9_LCD_R3, 0); PORT_Init(PORTC, PIN10, PORTC_PIN10_LCD_R4, 0); PORT_Init(PORTC, PIN11, PORTC_PIN11_LCD_R5, 0); PORT_Init(PORTC, PIN12, PORTC_PIN12_LCD_R6, 0); PORT_Init(PORTC, PIN13, PORTC_PIN13_LCD_R7, 0); PORT_Init(PORTB, PIN2, PORTB_PIN2_LCD_VSYNC, 0); PORT_Init(PORTB, PIN3, PORTB_PIN3_LCD_HSYNC, 0); PORT_Init(PORTB, PIN4, PORTB_PIN4_LCD_DEN, 0); PORT_Init(PORTB, PIN5, PORTB_PIN5_LCD_DCLK, 0); LCD_initStruct.ClkDiv = LCD_CLK_DIV; LCD_initStruct.Format = ((LCD_BITS_PER_PIXEL == 16) ? LCD_FMT_RGB565 : LCD_FMT_RGB888); LCD_initStruct.HnPixel = LCD_WIDTH; LCD_initStruct.VnPixel = LCD_HEIGHT; LCD_initStruct.Hfp = LCD_HFP; LCD_initStruct.Hbp = LCD_HBP; LCD_initStruct.Vfp = LCD_VFP; LCD_initStruct.Vbp = LCD_VBP; LCD_initStruct.HsyncWidth = LCD_HSYNC_WIDTH; LCD_initStruct.VsyncWidth = LCD_VSYNC_WIDTH; LCD_initStruct.DataSource = (uint32_t)rgb_lcd_obj.lcd_info.framebuffer; LCD_initStruct.Background = 0xFFFFFF; LCD_initStruct.SampleEdge = LCD_SAMPLE_FALL; LCD_initStruct.IntEOTEn = 0; LCD_Init(LCD, &LCD_initStruct); LCD_Start(LCD); turn_on_lcd_backlight(); __exit: if (result != RT_EOK) { if (rgb_lcd_obj.lcd_info.framebuffer) { rt_free(rgb_lcd_obj.lcd_info.framebuffer); } } return result; } INIT_BOARD_EXPORT(swm_rgb_lcd_init); int lcd_test(void) { struct swm_rgb_lcd_device *rgb_lcd; rgb_lcd = (struct swm_rgb_lcd_device *)rt_device_find("rgb_lcd"); // while (1) { /* red */ for (int i = 0; i < LCD_BUF_SIZE / 2; i++) { rgb_lcd->lcd_info.framebuffer[2 * i] = 0x00; rgb_lcd->lcd_info.framebuffer[2 * i + 1] = 0xF8; } rgb_lcd->parent.control(&rgb_lcd->parent, RTGRAPHIC_CTRL_RECT_UPDATE, RT_NULL); rt_thread_mdelay(1000); /* green */ for (int i = 0; i < LCD_BUF_SIZE / 2; i++) { rgb_lcd->lcd_info.framebuffer[2 * i] = 0xE0; rgb_lcd->lcd_info.framebuffer[2 * i + 1] = 0x07; } rgb_lcd->parent.control(&rgb_lcd->parent, RTGRAPHIC_CTRL_RECT_UPDATE, RT_NULL); rt_thread_mdelay(1000); /* blue */ for (int i = 0; i < LCD_BUF_SIZE / 2; i++) { rgb_lcd->lcd_info.framebuffer[2 * i] = 0x1F; rgb_lcd->lcd_info.framebuffer[2 * i + 1] = 0x00; } rgb_lcd->parent.control(&rgb_lcd->parent, RTGRAPHIC_CTRL_RECT_UPDATE, RT_NULL); rt_thread_mdelay(1000); } return 0; } MSH_CMD_EXPORT(lcd_test, lcd_test); #endif /* BSP_USING_RGB_LCD */