Reina Thibault
Code commenté du projet LED
Dependencies: BSP_DISCO_F746NG
hal_stm_lvgl/tft/tft.c@3:4f5dc253eb7b, 2021-04-24 (annotated)
- Committer:
- JohnnyK
- Date:
- Sat Apr 24 19:08:28 2021 +0000
- Revision:
- 3:4f5dc253eb7b
- Child:
- 5:071136c3eefa
Rework to LVGL 7.10.1 and MbedOS 6.10
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| JohnnyK | 3:4f5dc253eb7b | 1 | /** |
| JohnnyK | 3:4f5dc253eb7b | 2 | * @file tft.c |
| JohnnyK | 3:4f5dc253eb7b | 3 | * |
| JohnnyK | 3:4f5dc253eb7b | 4 | */ |
| JohnnyK | 3:4f5dc253eb7b | 5 | |
| JohnnyK | 3:4f5dc253eb7b | 6 | /********************* |
| JohnnyK | 3:4f5dc253eb7b | 7 | * INCLUDES |
| JohnnyK | 3:4f5dc253eb7b | 8 | *********************/ |
| JohnnyK | 3:4f5dc253eb7b | 9 | #include "lv_conf.h" |
| JohnnyK | 3:4f5dc253eb7b | 10 | #include "lvgl/lvgl.h" |
| JohnnyK | 3:4f5dc253eb7b | 11 | #include <string.h> |
| JohnnyK | 3:4f5dc253eb7b | 12 | #include <stdlib.h> |
| JohnnyK | 3:4f5dc253eb7b | 13 | |
| JohnnyK | 3:4f5dc253eb7b | 14 | #include "tft.h" |
| JohnnyK | 3:4f5dc253eb7b | 15 | #include "stm32f7xx.h" |
| JohnnyK | 3:4f5dc253eb7b | 16 | #include "stm32746g_discovery.h" |
| JohnnyK | 3:4f5dc253eb7b | 17 | #include "stm32746g_discovery_sdram.h" |
| JohnnyK | 3:4f5dc253eb7b | 18 | #include "stm32746g_discovery_ts.h" |
| JohnnyK | 3:4f5dc253eb7b | 19 | #include "../Components/rk043fn48h/rk043fn48h.h" |
| JohnnyK | 3:4f5dc253eb7b | 20 | |
| JohnnyK | 3:4f5dc253eb7b | 21 | /********************* |
| JohnnyK | 3:4f5dc253eb7b | 22 | * DEFINES |
| JohnnyK | 3:4f5dc253eb7b | 23 | *********************/ |
| JohnnyK | 3:4f5dc253eb7b | 24 | |
| JohnnyK | 3:4f5dc253eb7b | 25 | #if LV_COLOR_DEPTH != 16 && LV_COLOR_DEPTH != 24 && LV_COLOR_DEPTH != 32 |
| JohnnyK | 3:4f5dc253eb7b | 26 | #error LV_COLOR_DEPTH must be 16, 24, or 32 |
| JohnnyK | 3:4f5dc253eb7b | 27 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 28 | |
| JohnnyK | 3:4f5dc253eb7b | 29 | /** |
| JohnnyK | 3:4f5dc253eb7b | 30 | * @brief LCD status structure definition |
| JohnnyK | 3:4f5dc253eb7b | 31 | */ |
| JohnnyK | 3:4f5dc253eb7b | 32 | #define LCD_OK ((uint8_t)0x00) |
| JohnnyK | 3:4f5dc253eb7b | 33 | #define LCD_ERROR ((uint8_t)0x01) |
| JohnnyK | 3:4f5dc253eb7b | 34 | #define LCD_TIMEOUT ((uint8_t)0x02) |
| JohnnyK | 3:4f5dc253eb7b | 35 | |
| JohnnyK | 3:4f5dc253eb7b | 36 | /** |
| JohnnyK | 3:4f5dc253eb7b | 37 | * @brief LCD special pins |
| JohnnyK | 3:4f5dc253eb7b | 38 | */ |
| JohnnyK | 3:4f5dc253eb7b | 39 | /* Display enable pin */ |
| JohnnyK | 3:4f5dc253eb7b | 40 | #define LCD_DISP_PIN GPIO_PIN_12 |
| JohnnyK | 3:4f5dc253eb7b | 41 | #define LCD_DISP_GPIO_PORT GPIOI |
| JohnnyK | 3:4f5dc253eb7b | 42 | #define LCD_DISP_GPIO_CLK_ENABLE() __HAL_RCC_GPIOI_CLK_ENABLE() |
| JohnnyK | 3:4f5dc253eb7b | 43 | #define LCD_DISP_GPIO_CLK_DISABLE() __HAL_RCC_GPIOI_CLK_DISABLE() |
| JohnnyK | 3:4f5dc253eb7b | 44 | |
| JohnnyK | 3:4f5dc253eb7b | 45 | /* Backlight control pin */ |
| JohnnyK | 3:4f5dc253eb7b | 46 | #define LCD_BL_CTRL_PIN GPIO_PIN_3 |
| JohnnyK | 3:4f5dc253eb7b | 47 | #define LCD_BL_CTRL_GPIO_PORT GPIOK |
| JohnnyK | 3:4f5dc253eb7b | 48 | #define LCD_BL_CTRL_GPIO_CLK_ENABLE() __HAL_RCC_GPIOK_CLK_ENABLE() |
| JohnnyK | 3:4f5dc253eb7b | 49 | #define LCD_BL_CTRL_GPIO_CLK_DISABLE() __HAL_RCC_GPIOK_CLK_DISABLE() |
| JohnnyK | 3:4f5dc253eb7b | 50 | |
| JohnnyK | 3:4f5dc253eb7b | 51 | #define CPY_BUF_DMA_STREAM DMA2_Stream0 |
| JohnnyK | 3:4f5dc253eb7b | 52 | #define CPY_BUF_DMA_CHANNEL DMA_CHANNEL_0 |
| JohnnyK | 3:4f5dc253eb7b | 53 | #define CPY_BUF_DMA_STREAM_IRQ DMA2_Stream0_IRQn |
| JohnnyK | 3:4f5dc253eb7b | 54 | #define CPY_BUF_DMA_STREAM_IRQHANDLER DMA2_Stream0_IRQHandler |
| JohnnyK | 3:4f5dc253eb7b | 55 | |
| JohnnyK | 3:4f5dc253eb7b | 56 | /********************** |
| JohnnyK | 3:4f5dc253eb7b | 57 | * TYPEDEFS |
| JohnnyK | 3:4f5dc253eb7b | 58 | **********************/ |
| JohnnyK | 3:4f5dc253eb7b | 59 | |
| JohnnyK | 3:4f5dc253eb7b | 60 | /********************** |
| JohnnyK | 3:4f5dc253eb7b | 61 | * STATIC PROTOTYPES |
| JohnnyK | 3:4f5dc253eb7b | 62 | **********************/ |
| JohnnyK | 3:4f5dc253eb7b | 63 | |
| JohnnyK | 3:4f5dc253eb7b | 64 | /*These 3 functions are needed by LittlevGL*/ |
| JohnnyK | 3:4f5dc253eb7b | 65 | static void ex_disp_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t * color_p); |
| JohnnyK | 3:4f5dc253eb7b | 66 | #if LV_USE_GPU |
| JohnnyK | 3:4f5dc253eb7b | 67 | static void gpu_mem_blend(lv_disp_drv_t *disp_drv, lv_color_t * dest, const lv_color_t * src, uint32_t length, lv_opa_t opa); |
| JohnnyK | 3:4f5dc253eb7b | 68 | static void gpu_mem_fill(lv_disp_drv_t *disp_drv, lv_color_t * dest_buf, lv_coord_t dest_width, const lv_area_t * fill_area, lv_color_t color); |
| JohnnyK | 3:4f5dc253eb7b | 69 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 70 | |
| JohnnyK | 3:4f5dc253eb7b | 71 | static uint8_t LCD_Init(void); |
| JohnnyK | 3:4f5dc253eb7b | 72 | static void LCD_LayerRgb565Init(uint32_t FB_Address); |
| JohnnyK | 3:4f5dc253eb7b | 73 | static void LCD_DisplayOn(void); |
| JohnnyK | 3:4f5dc253eb7b | 74 | |
| JohnnyK | 3:4f5dc253eb7b | 75 | static void DMA_Config(void); |
| JohnnyK | 3:4f5dc253eb7b | 76 | static void DMA_TransferComplete(DMA_HandleTypeDef *han); |
| JohnnyK | 3:4f5dc253eb7b | 77 | static void DMA_TransferError(DMA_HandleTypeDef *han); |
| JohnnyK | 3:4f5dc253eb7b | 78 | |
| JohnnyK | 3:4f5dc253eb7b | 79 | #if LV_USE_GPU |
| JohnnyK | 3:4f5dc253eb7b | 80 | static void DMA2D_Config(void); |
| JohnnyK | 3:4f5dc253eb7b | 81 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 82 | |
| JohnnyK | 3:4f5dc253eb7b | 83 | /********************** |
| JohnnyK | 3:4f5dc253eb7b | 84 | * STATIC VARIABLES |
| JohnnyK | 3:4f5dc253eb7b | 85 | **********************/ |
| JohnnyK | 3:4f5dc253eb7b | 86 | #if LV_USE_GPU |
| JohnnyK | 3:4f5dc253eb7b | 87 | static DMA2D_HandleTypeDef Dma2dHandle; |
| JohnnyK | 3:4f5dc253eb7b | 88 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 89 | static LTDC_HandleTypeDef hLtdcHandler; |
| JohnnyK | 3:4f5dc253eb7b | 90 | |
| JohnnyK | 3:4f5dc253eb7b | 91 | #if LV_COLOR_DEPTH == 16 |
| JohnnyK | 3:4f5dc253eb7b | 92 | typedef uint16_t uintpixel_t; |
| JohnnyK | 3:4f5dc253eb7b | 93 | #elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 94 | typedef uint32_t uintpixel_t; |
| JohnnyK | 3:4f5dc253eb7b | 95 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 96 | |
| JohnnyK | 3:4f5dc253eb7b | 97 | /* You can try to change buffer to internal ram by uncommenting line below and commenting |
| JohnnyK | 3:4f5dc253eb7b | 98 | * SDRAM one. */ |
| JohnnyK | 3:4f5dc253eb7b | 99 | //static uintpixel_t my_fb[TFT_HOR_RES * TFT_VER_RES]; |
| JohnnyK | 3:4f5dc253eb7b | 100 | |
| JohnnyK | 3:4f5dc253eb7b | 101 | static __IO uintpixel_t * my_fb = (__IO uintpixel_t*) (SDRAM_DEVICE_ADDR); |
| JohnnyK | 3:4f5dc253eb7b | 102 | |
| JohnnyK | 3:4f5dc253eb7b | 103 | static DMA_HandleTypeDef DmaHandle; |
| JohnnyK | 3:4f5dc253eb7b | 104 | static int32_t x1_flush; |
| JohnnyK | 3:4f5dc253eb7b | 105 | static int32_t y1_flush; |
| JohnnyK | 3:4f5dc253eb7b | 106 | static int32_t x2_flush; |
| JohnnyK | 3:4f5dc253eb7b | 107 | static int32_t y2_fill; |
| JohnnyK | 3:4f5dc253eb7b | 108 | static int32_t y_fill_act; |
| JohnnyK | 3:4f5dc253eb7b | 109 | static const lv_color_t * buf_to_flush; |
| JohnnyK | 3:4f5dc253eb7b | 110 | |
| JohnnyK | 3:4f5dc253eb7b | 111 | static lv_disp_t *our_disp = NULL; |
| JohnnyK | 3:4f5dc253eb7b | 112 | /********************** |
| JohnnyK | 3:4f5dc253eb7b | 113 | * MACROS |
| JohnnyK | 3:4f5dc253eb7b | 114 | **********************/ |
| JohnnyK | 3:4f5dc253eb7b | 115 | |
| JohnnyK | 3:4f5dc253eb7b | 116 | /** |
| JohnnyK | 3:4f5dc253eb7b | 117 | * Initialize your display here |
| JohnnyK | 3:4f5dc253eb7b | 118 | */ |
| JohnnyK | 3:4f5dc253eb7b | 119 | |
| JohnnyK | 3:4f5dc253eb7b | 120 | void tft_init(void) |
| JohnnyK | 3:4f5dc253eb7b | 121 | { |
| JohnnyK | 3:4f5dc253eb7b | 122 | /* There is only one display on STM32 */ |
| JohnnyK | 3:4f5dc253eb7b | 123 | if(our_disp != NULL) |
| JohnnyK | 3:4f5dc253eb7b | 124 | abort(); |
| JohnnyK | 3:4f5dc253eb7b | 125 | /* LCD Initialization */ |
| JohnnyK | 3:4f5dc253eb7b | 126 | LCD_Init(); |
| JohnnyK | 3:4f5dc253eb7b | 127 | |
| JohnnyK | 3:4f5dc253eb7b | 128 | /* LCD Initialization */ |
| JohnnyK | 3:4f5dc253eb7b | 129 | LCD_LayerRgb565Init((uint32_t)my_fb); |
| JohnnyK | 3:4f5dc253eb7b | 130 | |
| JohnnyK | 3:4f5dc253eb7b | 131 | /* Enable the LCD */ |
| JohnnyK | 3:4f5dc253eb7b | 132 | LCD_DisplayOn(); |
| JohnnyK | 3:4f5dc253eb7b | 133 | |
| JohnnyK | 3:4f5dc253eb7b | 134 | DMA_Config(); |
| JohnnyK | 3:4f5dc253eb7b | 135 | |
| JohnnyK | 3:4f5dc253eb7b | 136 | #if LV_USE_GPU != 0 |
| JohnnyK | 3:4f5dc253eb7b | 137 | DMA2D_Config(); |
| JohnnyK | 3:4f5dc253eb7b | 138 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 139 | /*----------------------------- |
| JohnnyK | 3:4f5dc253eb7b | 140 | * Create a buffer for drawing |
| JohnnyK | 3:4f5dc253eb7b | 141 | *----------------------------*/ |
| JohnnyK | 3:4f5dc253eb7b | 142 | |
| JohnnyK | 3:4f5dc253eb7b | 143 | /* LittlevGL requires a buffer where it draws the objects. The buffer's has to be greater than 1 display row*/ |
| JohnnyK | 3:4f5dc253eb7b | 144 | |
| JohnnyK | 3:4f5dc253eb7b | 145 | static lv_disp_buf_t disp_buf_1; |
| JohnnyK | 3:4f5dc253eb7b | 146 | static lv_color_t buf1_1[LV_HOR_RES_MAX * 68]; |
| JohnnyK | 3:4f5dc253eb7b | 147 | static lv_color_t buf1_2[LV_HOR_RES_MAX * 68]; |
| JohnnyK | 3:4f5dc253eb7b | 148 | lv_disp_buf_init(&disp_buf_1, buf1_1, buf1_2, LV_HOR_RES_MAX * 68); /*Initialize the display buffer*/ |
| JohnnyK | 3:4f5dc253eb7b | 149 | |
| JohnnyK | 3:4f5dc253eb7b | 150 | |
| JohnnyK | 3:4f5dc253eb7b | 151 | /*----------------------------------- |
| JohnnyK | 3:4f5dc253eb7b | 152 | * Register the display in LittlevGL |
| JohnnyK | 3:4f5dc253eb7b | 153 | *----------------------------------*/ |
| JohnnyK | 3:4f5dc253eb7b | 154 | |
| JohnnyK | 3:4f5dc253eb7b | 155 | lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/ |
| JohnnyK | 3:4f5dc253eb7b | 156 | lv_disp_drv_init(&disp_drv); /*Basic initialization*/ |
| JohnnyK | 3:4f5dc253eb7b | 157 | |
| JohnnyK | 3:4f5dc253eb7b | 158 | /*Set up the functions to access to your display*/ |
| JohnnyK | 3:4f5dc253eb7b | 159 | |
| JohnnyK | 3:4f5dc253eb7b | 160 | /*Set the resolution of the display*/ |
| JohnnyK | 3:4f5dc253eb7b | 161 | disp_drv.hor_res = 480; |
| JohnnyK | 3:4f5dc253eb7b | 162 | disp_drv.ver_res = 272; |
| JohnnyK | 3:4f5dc253eb7b | 163 | |
| JohnnyK | 3:4f5dc253eb7b | 164 | /*Used to copy the buffer's content to the display*/ |
| JohnnyK | 3:4f5dc253eb7b | 165 | disp_drv.flush_cb = ex_disp_flush; |
| JohnnyK | 3:4f5dc253eb7b | 166 | |
| JohnnyK | 3:4f5dc253eb7b | 167 | /*Set a display buffer*/ |
| JohnnyK | 3:4f5dc253eb7b | 168 | disp_drv.buffer = &disp_buf_1; |
| JohnnyK | 3:4f5dc253eb7b | 169 | |
| JohnnyK | 3:4f5dc253eb7b | 170 | |
| JohnnyK | 3:4f5dc253eb7b | 171 | /*Finally register the driver*/ |
| JohnnyK | 3:4f5dc253eb7b | 172 | our_disp = lv_disp_drv_register(&disp_drv); |
| JohnnyK | 3:4f5dc253eb7b | 173 | } |
| JohnnyK | 3:4f5dc253eb7b | 174 | |
| JohnnyK | 3:4f5dc253eb7b | 175 | /********************** |
| JohnnyK | 3:4f5dc253eb7b | 176 | * STATIC FUNCTIONS |
| JohnnyK | 3:4f5dc253eb7b | 177 | **********************/ |
| JohnnyK | 3:4f5dc253eb7b | 178 | |
| JohnnyK | 3:4f5dc253eb7b | 179 | /* Flush the content of the internal buffer the specific area on the display |
| JohnnyK | 3:4f5dc253eb7b | 180 | * You can use DMA or any hardware acceleration to do this operation in the background but |
| JohnnyK | 3:4f5dc253eb7b | 181 | * 'lv_flush_ready()' has to be called when finished |
| JohnnyK | 3:4f5dc253eb7b | 182 | * This function is required only when LV_VDB_SIZE != 0 in lv_conf.h*/ |
| JohnnyK | 3:4f5dc253eb7b | 183 | static void ex_disp_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t * color_p) |
| JohnnyK | 3:4f5dc253eb7b | 184 | { |
| JohnnyK | 3:4f5dc253eb7b | 185 | int32_t x1 = area->x1; |
| JohnnyK | 3:4f5dc253eb7b | 186 | int32_t x2 = area->x2; |
| JohnnyK | 3:4f5dc253eb7b | 187 | int32_t y1 = area->y1; |
| JohnnyK | 3:4f5dc253eb7b | 188 | int32_t y2 = area->y2; |
| JohnnyK | 3:4f5dc253eb7b | 189 | /*Return if the area is out the screen*/ |
| JohnnyK | 3:4f5dc253eb7b | 190 | |
| JohnnyK | 3:4f5dc253eb7b | 191 | if(x2 < 0) return; |
| JohnnyK | 3:4f5dc253eb7b | 192 | if(y2 < 0) return; |
| JohnnyK | 3:4f5dc253eb7b | 193 | if(x1 > TFT_HOR_RES - 1) return; |
| JohnnyK | 3:4f5dc253eb7b | 194 | if(y1 > TFT_VER_RES - 1) return; |
| JohnnyK | 3:4f5dc253eb7b | 195 | |
| JohnnyK | 3:4f5dc253eb7b | 196 | /*Truncate the area to the screen*/ |
| JohnnyK | 3:4f5dc253eb7b | 197 | int32_t act_x1 = x1 < 0 ? 0 : x1; |
| JohnnyK | 3:4f5dc253eb7b | 198 | int32_t act_y1 = y1 < 0 ? 0 : y1; |
| JohnnyK | 3:4f5dc253eb7b | 199 | int32_t act_x2 = x2 > TFT_HOR_RES - 1 ? TFT_HOR_RES - 1 : x2; |
| JohnnyK | 3:4f5dc253eb7b | 200 | int32_t act_y2 = y2 > TFT_VER_RES - 1 ? TFT_VER_RES - 1 : y2; |
| JohnnyK | 3:4f5dc253eb7b | 201 | |
| JohnnyK | 3:4f5dc253eb7b | 202 | x1_flush = act_x1; |
| JohnnyK | 3:4f5dc253eb7b | 203 | y1_flush = act_y1; |
| JohnnyK | 3:4f5dc253eb7b | 204 | x2_flush = act_x2; |
| JohnnyK | 3:4f5dc253eb7b | 205 | y2_fill = act_y2; |
| JohnnyK | 3:4f5dc253eb7b | 206 | y_fill_act = act_y1; |
| JohnnyK | 3:4f5dc253eb7b | 207 | buf_to_flush = color_p; |
| JohnnyK | 3:4f5dc253eb7b | 208 | |
| JohnnyK | 3:4f5dc253eb7b | 209 | SCB_CleanInvalidateDCache(); |
| JohnnyK | 3:4f5dc253eb7b | 210 | SCB_InvalidateICache(); |
| JohnnyK | 3:4f5dc253eb7b | 211 | /*##-7- Start the DMA transfer using the interrupt mode #*/ |
| JohnnyK | 3:4f5dc253eb7b | 212 | /* Configure the source, destination and buffer size DMA fields and Start DMA Stream transfer */ |
| JohnnyK | 3:4f5dc253eb7b | 213 | /* Enable All the DMA interrupts */ |
| JohnnyK | 3:4f5dc253eb7b | 214 | HAL_StatusTypeDef err; |
| JohnnyK | 3:4f5dc253eb7b | 215 | uint32_t length = (x2_flush - x1_flush + 1); |
| JohnnyK | 3:4f5dc253eb7b | 216 | #if LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 217 | length *= 2; /* STM32 DMA uses 16-bit chunks so multiply by 2 for 32-bit color */ |
| JohnnyK | 3:4f5dc253eb7b | 218 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 219 | err = HAL_DMA_Start_IT(&DmaHandle,(uint32_t)buf_to_flush, (uint32_t)&my_fb[y_fill_act * TFT_HOR_RES + x1_flush], |
| JohnnyK | 3:4f5dc253eb7b | 220 | length); |
| JohnnyK | 3:4f5dc253eb7b | 221 | if(err != HAL_OK) |
| JohnnyK | 3:4f5dc253eb7b | 222 | { |
| JohnnyK | 3:4f5dc253eb7b | 223 | while(1); /*Halt on error*/ |
| JohnnyK | 3:4f5dc253eb7b | 224 | } |
| JohnnyK | 3:4f5dc253eb7b | 225 | } |
| JohnnyK | 3:4f5dc253eb7b | 226 | |
| JohnnyK | 3:4f5dc253eb7b | 227 | |
| JohnnyK | 3:4f5dc253eb7b | 228 | /** |
| JohnnyK | 3:4f5dc253eb7b | 229 | * @brief Configure LCD pins, and peripheral clocks. |
| JohnnyK | 3:4f5dc253eb7b | 230 | */ |
| JohnnyK | 3:4f5dc253eb7b | 231 | static void LCD_MspInit(void) |
| JohnnyK | 3:4f5dc253eb7b | 232 | { |
| JohnnyK | 3:4f5dc253eb7b | 233 | GPIO_InitTypeDef gpio_init_structure; |
| JohnnyK | 3:4f5dc253eb7b | 234 | |
| JohnnyK | 3:4f5dc253eb7b | 235 | /* Enable the LTDC and DMA2D clocks */ |
| JohnnyK | 3:4f5dc253eb7b | 236 | __HAL_RCC_LTDC_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 237 | #if LV_USE_GPU != 0 |
| JohnnyK | 3:4f5dc253eb7b | 238 | __HAL_RCC_DMA2D_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 239 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 240 | /* Enable GPIOs clock */ |
| JohnnyK | 3:4f5dc253eb7b | 241 | __HAL_RCC_GPIOE_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 242 | __HAL_RCC_GPIOG_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 243 | __HAL_RCC_GPIOI_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 244 | __HAL_RCC_GPIOJ_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 245 | __HAL_RCC_GPIOK_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 246 | LCD_DISP_GPIO_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 247 | LCD_BL_CTRL_GPIO_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 248 | |
| JohnnyK | 3:4f5dc253eb7b | 249 | /*** LTDC Pins configuration ***/ |
| JohnnyK | 3:4f5dc253eb7b | 250 | /* GPIOE configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 251 | gpio_init_structure.Pin = GPIO_PIN_4; |
| JohnnyK | 3:4f5dc253eb7b | 252 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
| JohnnyK | 3:4f5dc253eb7b | 253 | gpio_init_structure.Pull = GPIO_NOPULL; |
| JohnnyK | 3:4f5dc253eb7b | 254 | gpio_init_structure.Speed = GPIO_SPEED_FAST; |
| JohnnyK | 3:4f5dc253eb7b | 255 | gpio_init_structure.Alternate = GPIO_AF14_LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 256 | HAL_GPIO_Init(GPIOE, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 257 | |
| JohnnyK | 3:4f5dc253eb7b | 258 | /* GPIOG configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 259 | gpio_init_structure.Pin = GPIO_PIN_12; |
| JohnnyK | 3:4f5dc253eb7b | 260 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
| JohnnyK | 3:4f5dc253eb7b | 261 | gpio_init_structure.Alternate = GPIO_AF9_LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 262 | HAL_GPIO_Init(GPIOG, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 263 | |
| JohnnyK | 3:4f5dc253eb7b | 264 | /* GPIOI LTDC alternate configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 265 | gpio_init_structure.Pin = GPIO_PIN_9 | GPIO_PIN_10 | \ |
| JohnnyK | 3:4f5dc253eb7b | 266 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15; |
| JohnnyK | 3:4f5dc253eb7b | 267 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
| JohnnyK | 3:4f5dc253eb7b | 268 | gpio_init_structure.Alternate = GPIO_AF14_LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 269 | HAL_GPIO_Init(GPIOI, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 270 | |
| JohnnyK | 3:4f5dc253eb7b | 271 | /* GPIOJ configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 272 | gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | \ |
| JohnnyK | 3:4f5dc253eb7b | 273 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7 | \ |
| JohnnyK | 3:4f5dc253eb7b | 274 | GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | \ |
| JohnnyK | 3:4f5dc253eb7b | 275 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15; |
| JohnnyK | 3:4f5dc253eb7b | 276 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
| JohnnyK | 3:4f5dc253eb7b | 277 | gpio_init_structure.Alternate = GPIO_AF14_LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 278 | HAL_GPIO_Init(GPIOJ, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 279 | |
| JohnnyK | 3:4f5dc253eb7b | 280 | /* GPIOK configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 281 | gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_4 | \ |
| JohnnyK | 3:4f5dc253eb7b | 282 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7; |
| JohnnyK | 3:4f5dc253eb7b | 283 | gpio_init_structure.Mode = GPIO_MODE_AF_PP; |
| JohnnyK | 3:4f5dc253eb7b | 284 | gpio_init_structure.Alternate = GPIO_AF14_LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 285 | HAL_GPIO_Init(GPIOK, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 286 | |
| JohnnyK | 3:4f5dc253eb7b | 287 | /* LCD_DISP GPIO configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 288 | gpio_init_structure.Pin = LCD_DISP_PIN; /* LCD_DISP pin has to be manually controlled */ |
| JohnnyK | 3:4f5dc253eb7b | 289 | gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP; |
| JohnnyK | 3:4f5dc253eb7b | 290 | HAL_GPIO_Init(LCD_DISP_GPIO_PORT, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 291 | |
| JohnnyK | 3:4f5dc253eb7b | 292 | /* LCD_BL_CTRL GPIO configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 293 | gpio_init_structure.Pin = LCD_BL_CTRL_PIN; /* LCD_BL_CTRL pin has to be manually controlled */ |
| JohnnyK | 3:4f5dc253eb7b | 294 | gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP; |
| JohnnyK | 3:4f5dc253eb7b | 295 | HAL_GPIO_Init(LCD_BL_CTRL_GPIO_PORT, &gpio_init_structure); |
| JohnnyK | 3:4f5dc253eb7b | 296 | } |
| JohnnyK | 3:4f5dc253eb7b | 297 | |
| JohnnyK | 3:4f5dc253eb7b | 298 | /** |
| JohnnyK | 3:4f5dc253eb7b | 299 | * @brief Configure LTDC PLL. |
| JohnnyK | 3:4f5dc253eb7b | 300 | */ |
| JohnnyK | 3:4f5dc253eb7b | 301 | static void LCD_ClockConfig(void) |
| JohnnyK | 3:4f5dc253eb7b | 302 | { |
| JohnnyK | 3:4f5dc253eb7b | 303 | static RCC_PeriphCLKInitTypeDef periph_clk_init_struct; |
| JohnnyK | 3:4f5dc253eb7b | 304 | |
| JohnnyK | 3:4f5dc253eb7b | 305 | /* RK043FN48H LCD clock configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 306 | /* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */ |
| JohnnyK | 3:4f5dc253eb7b | 307 | /* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 192 Mhz */ |
| JohnnyK | 3:4f5dc253eb7b | 308 | /* PLLLCDCLK = PLLSAI_VCO Output/PLLSAIR = 192/5 = 38.4 Mhz */ |
| JohnnyK | 3:4f5dc253eb7b | 309 | /* LTDC clock frequency = PLLLCDCLK / LTDC_PLLSAI_DIVR_4 = 38.4/4 = 9.6Mhz */ |
| JohnnyK | 3:4f5dc253eb7b | 310 | periph_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 311 | periph_clk_init_struct.PLLSAI.PLLSAIN = 192; |
| JohnnyK | 3:4f5dc253eb7b | 312 | periph_clk_init_struct.PLLSAI.PLLSAIR = RK043FN48H_FREQUENCY_DIVIDER; |
| JohnnyK | 3:4f5dc253eb7b | 313 | periph_clk_init_struct.PLLSAIDivR = RCC_PLLSAIDIVR_4; |
| JohnnyK | 3:4f5dc253eb7b | 314 | HAL_RCCEx_PeriphCLKConfig(&periph_clk_init_struct); |
| JohnnyK | 3:4f5dc253eb7b | 315 | } |
| JohnnyK | 3:4f5dc253eb7b | 316 | |
| JohnnyK | 3:4f5dc253eb7b | 317 | /** |
| JohnnyK | 3:4f5dc253eb7b | 318 | * @brief Initializes the LCD. |
| JohnnyK | 3:4f5dc253eb7b | 319 | * @retval LCD state |
| JohnnyK | 3:4f5dc253eb7b | 320 | */ |
| JohnnyK | 3:4f5dc253eb7b | 321 | static uint8_t LCD_Init(void) |
| JohnnyK | 3:4f5dc253eb7b | 322 | { |
| JohnnyK | 3:4f5dc253eb7b | 323 | /* Select the used LCD */ |
| JohnnyK | 3:4f5dc253eb7b | 324 | |
| JohnnyK | 3:4f5dc253eb7b | 325 | /* The RK043FN48H LCD 480x272 is selected */ |
| JohnnyK | 3:4f5dc253eb7b | 326 | /* Timing Configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 327 | hLtdcHandler.Init.HorizontalSync = (RK043FN48H_HSYNC - 1); |
| JohnnyK | 3:4f5dc253eb7b | 328 | hLtdcHandler.Init.VerticalSync = (RK043FN48H_VSYNC - 1); |
| JohnnyK | 3:4f5dc253eb7b | 329 | hLtdcHandler.Init.AccumulatedHBP = (RK043FN48H_HSYNC + RK043FN48H_HBP - 1); |
| JohnnyK | 3:4f5dc253eb7b | 330 | hLtdcHandler.Init.AccumulatedVBP = (RK043FN48H_VSYNC + RK043FN48H_VBP - 1); |
| JohnnyK | 3:4f5dc253eb7b | 331 | hLtdcHandler.Init.AccumulatedActiveH = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP - 1); |
| JohnnyK | 3:4f5dc253eb7b | 332 | hLtdcHandler.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1); |
| JohnnyK | 3:4f5dc253eb7b | 333 | hLtdcHandler.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1); |
| JohnnyK | 3:4f5dc253eb7b | 334 | hLtdcHandler.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1); |
| JohnnyK | 3:4f5dc253eb7b | 335 | |
| JohnnyK | 3:4f5dc253eb7b | 336 | /* LCD clock configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 337 | LCD_ClockConfig(); |
| JohnnyK | 3:4f5dc253eb7b | 338 | |
| JohnnyK | 3:4f5dc253eb7b | 339 | /* Initialize the LCD pixel width and pixel height */ |
| JohnnyK | 3:4f5dc253eb7b | 340 | hLtdcHandler.LayerCfg->ImageWidth = RK043FN48H_WIDTH; |
| JohnnyK | 3:4f5dc253eb7b | 341 | hLtdcHandler.LayerCfg->ImageHeight = RK043FN48H_HEIGHT; |
| JohnnyK | 3:4f5dc253eb7b | 342 | |
| JohnnyK | 3:4f5dc253eb7b | 343 | /* Background value */ |
| JohnnyK | 3:4f5dc253eb7b | 344 | hLtdcHandler.Init.Backcolor.Blue = 0; |
| JohnnyK | 3:4f5dc253eb7b | 345 | hLtdcHandler.Init.Backcolor.Green = 0; |
| JohnnyK | 3:4f5dc253eb7b | 346 | hLtdcHandler.Init.Backcolor.Red = 0; |
| JohnnyK | 3:4f5dc253eb7b | 347 | |
| JohnnyK | 3:4f5dc253eb7b | 348 | /* Polarity */ |
| JohnnyK | 3:4f5dc253eb7b | 349 | hLtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL; |
| JohnnyK | 3:4f5dc253eb7b | 350 | hLtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL; |
| JohnnyK | 3:4f5dc253eb7b | 351 | hLtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL; |
| JohnnyK | 3:4f5dc253eb7b | 352 | hLtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC; |
| JohnnyK | 3:4f5dc253eb7b | 353 | hLtdcHandler.Instance = LTDC; |
| JohnnyK | 3:4f5dc253eb7b | 354 | |
| JohnnyK | 3:4f5dc253eb7b | 355 | if(HAL_LTDC_GetState(&hLtdcHandler) == HAL_LTDC_STATE_RESET) |
| JohnnyK | 3:4f5dc253eb7b | 356 | { |
| JohnnyK | 3:4f5dc253eb7b | 357 | /* Initialize the LCD Msp: this __weak function can be rewritten by the application */ |
| JohnnyK | 3:4f5dc253eb7b | 358 | LCD_MspInit(); |
| JohnnyK | 3:4f5dc253eb7b | 359 | } |
| JohnnyK | 3:4f5dc253eb7b | 360 | HAL_LTDC_Init(&hLtdcHandler); |
| JohnnyK | 3:4f5dc253eb7b | 361 | |
| JohnnyK | 3:4f5dc253eb7b | 362 | /* Assert display enable LCD_DISP pin */ |
| JohnnyK | 3:4f5dc253eb7b | 363 | HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET); |
| JohnnyK | 3:4f5dc253eb7b | 364 | |
| JohnnyK | 3:4f5dc253eb7b | 365 | /* Assert backlight LCD_BL_CTRL pin */ |
| JohnnyK | 3:4f5dc253eb7b | 366 | HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET); |
| JohnnyK | 3:4f5dc253eb7b | 367 | |
| JohnnyK | 3:4f5dc253eb7b | 368 | BSP_SDRAM_Init(); |
| JohnnyK | 3:4f5dc253eb7b | 369 | |
| JohnnyK | 3:4f5dc253eb7b | 370 | uint32_t i; |
| JohnnyK | 3:4f5dc253eb7b | 371 | for(i = 0; i < (TFT_HOR_RES * TFT_VER_RES) ; i++) |
| JohnnyK | 3:4f5dc253eb7b | 372 | { |
| JohnnyK | 3:4f5dc253eb7b | 373 | my_fb[i] = 0; |
| JohnnyK | 3:4f5dc253eb7b | 374 | } |
| JohnnyK | 3:4f5dc253eb7b | 375 | |
| JohnnyK | 3:4f5dc253eb7b | 376 | return LCD_OK; |
| JohnnyK | 3:4f5dc253eb7b | 377 | } |
| JohnnyK | 3:4f5dc253eb7b | 378 | |
| JohnnyK | 3:4f5dc253eb7b | 379 | static void LCD_LayerRgb565Init(uint32_t FB_Address) |
| JohnnyK | 3:4f5dc253eb7b | 380 | { |
| JohnnyK | 3:4f5dc253eb7b | 381 | LTDC_LayerCfgTypeDef layer_cfg; |
| JohnnyK | 3:4f5dc253eb7b | 382 | |
| JohnnyK | 3:4f5dc253eb7b | 383 | /* Layer Init */ |
| JohnnyK | 3:4f5dc253eb7b | 384 | layer_cfg.WindowX0 = 0; |
| JohnnyK | 3:4f5dc253eb7b | 385 | layer_cfg.WindowX1 = TFT_HOR_RES; |
| JohnnyK | 3:4f5dc253eb7b | 386 | layer_cfg.WindowY0 = 0; |
| JohnnyK | 3:4f5dc253eb7b | 387 | layer_cfg.WindowY1 = TFT_VER_RES; |
| JohnnyK | 3:4f5dc253eb7b | 388 | |
| JohnnyK | 3:4f5dc253eb7b | 389 | #if LV_COLOR_DEPTH == 16 |
| JohnnyK | 3:4f5dc253eb7b | 390 | layer_cfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565; |
| JohnnyK | 3:4f5dc253eb7b | 391 | #elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 392 | layer_cfg.PixelFormat = LTDC_PIXEL_FORMAT_ARGB8888; |
| JohnnyK | 3:4f5dc253eb7b | 393 | #else |
| JohnnyK | 3:4f5dc253eb7b | 394 | #error Unsupported color depth (see tft.c) |
| JohnnyK | 3:4f5dc253eb7b | 395 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 396 | layer_cfg.FBStartAdress = FB_Address; |
| JohnnyK | 3:4f5dc253eb7b | 397 | layer_cfg.Alpha = 255; |
| JohnnyK | 3:4f5dc253eb7b | 398 | layer_cfg.Alpha0 = 0; |
| JohnnyK | 3:4f5dc253eb7b | 399 | layer_cfg.Backcolor.Blue = 0; |
| JohnnyK | 3:4f5dc253eb7b | 400 | layer_cfg.Backcolor.Green = 0; |
| JohnnyK | 3:4f5dc253eb7b | 401 | layer_cfg.Backcolor.Red = 0; |
| JohnnyK | 3:4f5dc253eb7b | 402 | layer_cfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA; |
| JohnnyK | 3:4f5dc253eb7b | 403 | layer_cfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA; |
| JohnnyK | 3:4f5dc253eb7b | 404 | layer_cfg.ImageWidth = TFT_HOR_RES; |
| JohnnyK | 3:4f5dc253eb7b | 405 | layer_cfg.ImageHeight = TFT_VER_RES; |
| JohnnyK | 3:4f5dc253eb7b | 406 | |
| JohnnyK | 3:4f5dc253eb7b | 407 | HAL_LTDC_ConfigLayer(&hLtdcHandler, &layer_cfg, 0); |
| JohnnyK | 3:4f5dc253eb7b | 408 | } |
| JohnnyK | 3:4f5dc253eb7b | 409 | |
| JohnnyK | 3:4f5dc253eb7b | 410 | static void LCD_DisplayOn(void) |
| JohnnyK | 3:4f5dc253eb7b | 411 | { |
| JohnnyK | 3:4f5dc253eb7b | 412 | /* Display On */ |
| JohnnyK | 3:4f5dc253eb7b | 413 | __HAL_LTDC_ENABLE(&hLtdcHandler); |
| JohnnyK | 3:4f5dc253eb7b | 414 | HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET); /* Assert LCD_DISP pin */ |
| JohnnyK | 3:4f5dc253eb7b | 415 | HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET); /* Assert LCD_BL_CTRL pin */ |
| JohnnyK | 3:4f5dc253eb7b | 416 | } |
| JohnnyK | 3:4f5dc253eb7b | 417 | |
| JohnnyK | 3:4f5dc253eb7b | 418 | static void DMA_Config(void) |
| JohnnyK | 3:4f5dc253eb7b | 419 | { |
| JohnnyK | 3:4f5dc253eb7b | 420 | /*## -1- Enable DMA2 clock #################################################*/ |
| JohnnyK | 3:4f5dc253eb7b | 421 | __HAL_RCC_DMA2_CLK_ENABLE(); |
| JohnnyK | 3:4f5dc253eb7b | 422 | |
| JohnnyK | 3:4f5dc253eb7b | 423 | /*##-2- Select the DMA functional Parameters ###############################*/ |
| JohnnyK | 3:4f5dc253eb7b | 424 | DmaHandle.Init.Channel = CPY_BUF_DMA_CHANNEL; /* DMA_CHANNEL_0 */ |
| JohnnyK | 3:4f5dc253eb7b | 425 | DmaHandle.Init.Direction = DMA_MEMORY_TO_MEMORY; /* M2M transfer mode */ |
| JohnnyK | 3:4f5dc253eb7b | 426 | DmaHandle.Init.PeriphInc = DMA_PINC_ENABLE; /* Peripheral increment mode Enable */ |
| JohnnyK | 3:4f5dc253eb7b | 427 | DmaHandle.Init.MemInc = DMA_MINC_ENABLE; /* Memory increment mode Enable */ |
| JohnnyK | 3:4f5dc253eb7b | 428 | DmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD; /* Peripheral data alignment : 16bit */ |
| JohnnyK | 3:4f5dc253eb7b | 429 | DmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD; /* memory data alignment : 16bit */ |
| JohnnyK | 3:4f5dc253eb7b | 430 | DmaHandle.Init.Mode = DMA_NORMAL; /* Normal DMA mode */ |
| JohnnyK | 3:4f5dc253eb7b | 431 | DmaHandle.Init.Priority = DMA_PRIORITY_HIGH; /* priority level : high */ |
| JohnnyK | 3:4f5dc253eb7b | 432 | DmaHandle.Init.FIFOMode = DMA_FIFOMODE_ENABLE; /* FIFO mode enabled */ |
| JohnnyK | 3:4f5dc253eb7b | 433 | DmaHandle.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_1QUARTERFULL; /* FIFO threshold: 1/4 full */ |
| JohnnyK | 3:4f5dc253eb7b | 434 | DmaHandle.Init.MemBurst = DMA_MBURST_SINGLE; /* Memory burst */ |
| JohnnyK | 3:4f5dc253eb7b | 435 | DmaHandle.Init.PeriphBurst = DMA_PBURST_SINGLE; /* Peripheral burst */ |
| JohnnyK | 3:4f5dc253eb7b | 436 | |
| JohnnyK | 3:4f5dc253eb7b | 437 | /*##-3- Select the DMA instance to be used for the transfer : DMA2_Stream0 #*/ |
| JohnnyK | 3:4f5dc253eb7b | 438 | DmaHandle.Instance = CPY_BUF_DMA_STREAM; |
| JohnnyK | 3:4f5dc253eb7b | 439 | |
| JohnnyK | 3:4f5dc253eb7b | 440 | /*##-4- Initialize the DMA stream ##########################################*/ |
| JohnnyK | 3:4f5dc253eb7b | 441 | if(HAL_DMA_Init(&DmaHandle) != HAL_OK) |
| JohnnyK | 3:4f5dc253eb7b | 442 | { |
| JohnnyK | 3:4f5dc253eb7b | 443 | while(1) |
| JohnnyK | 3:4f5dc253eb7b | 444 | { |
| JohnnyK | 3:4f5dc253eb7b | 445 | } |
| JohnnyK | 3:4f5dc253eb7b | 446 | } |
| JohnnyK | 3:4f5dc253eb7b | 447 | |
| JohnnyK | 3:4f5dc253eb7b | 448 | /*##-5- Select Callbacks functions called after Transfer complete and Transfer error */ |
| JohnnyK | 3:4f5dc253eb7b | 449 | HAL_DMA_RegisterCallback(&DmaHandle, HAL_DMA_XFER_CPLT_CB_ID, DMA_TransferComplete); |
| JohnnyK | 3:4f5dc253eb7b | 450 | HAL_DMA_RegisterCallback(&DmaHandle, HAL_DMA_XFER_ERROR_CB_ID, DMA_TransferError); |
| JohnnyK | 3:4f5dc253eb7b | 451 | |
| JohnnyK | 3:4f5dc253eb7b | 452 | /*##-6- Configure NVIC for DMA transfer complete/error interrupts ##########*/ |
| JohnnyK | 3:4f5dc253eb7b | 453 | HAL_NVIC_SetPriority(CPY_BUF_DMA_STREAM_IRQ, 0, 0); |
| JohnnyK | 3:4f5dc253eb7b | 454 | HAL_NVIC_EnableIRQ(CPY_BUF_DMA_STREAM_IRQ); |
| JohnnyK | 3:4f5dc253eb7b | 455 | } |
| JohnnyK | 3:4f5dc253eb7b | 456 | |
| JohnnyK | 3:4f5dc253eb7b | 457 | /** |
| JohnnyK | 3:4f5dc253eb7b | 458 | * @brief DMA conversion complete callback |
| JohnnyK | 3:4f5dc253eb7b | 459 | * @note This function is executed when the transfer complete interrupt |
| JohnnyK | 3:4f5dc253eb7b | 460 | * is generated |
| JohnnyK | 3:4f5dc253eb7b | 461 | * @retval None |
| JohnnyK | 3:4f5dc253eb7b | 462 | */ |
| JohnnyK | 3:4f5dc253eb7b | 463 | static void DMA_TransferComplete(DMA_HandleTypeDef *han) |
| JohnnyK | 3:4f5dc253eb7b | 464 | { |
| JohnnyK | 3:4f5dc253eb7b | 465 | y_fill_act ++; |
| JohnnyK | 3:4f5dc253eb7b | 466 | |
| JohnnyK | 3:4f5dc253eb7b | 467 | if(y_fill_act > y2_fill) { |
| JohnnyK | 3:4f5dc253eb7b | 468 | SCB_CleanInvalidateDCache(); |
| JohnnyK | 3:4f5dc253eb7b | 469 | SCB_InvalidateICache(); |
| JohnnyK | 3:4f5dc253eb7b | 470 | lv_disp_flush_ready(&our_disp->driver); |
| JohnnyK | 3:4f5dc253eb7b | 471 | } else { |
| JohnnyK | 3:4f5dc253eb7b | 472 | uint32_t length = (x2_flush - x1_flush + 1); |
| JohnnyK | 3:4f5dc253eb7b | 473 | buf_to_flush += x2_flush - x1_flush + 1; |
| JohnnyK | 3:4f5dc253eb7b | 474 | /*##-7- Start the DMA transfer using the interrupt mode ####################*/ |
| JohnnyK | 3:4f5dc253eb7b | 475 | /* Configure the source, destination and buffer size DMA fields and Start DMA Stream transfer */ |
| JohnnyK | 3:4f5dc253eb7b | 476 | /* Enable All the DMA interrupts */ |
| JohnnyK | 3:4f5dc253eb7b | 477 | #if LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 478 | length *= 2; /* STM32 DMA uses 16-bit chunks so multiply by 2 for 32-bit color */ |
| JohnnyK | 3:4f5dc253eb7b | 479 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 480 | if(HAL_DMA_Start_IT(han,(uint32_t)buf_to_flush, (uint32_t)&my_fb[y_fill_act * TFT_HOR_RES + x1_flush], |
| JohnnyK | 3:4f5dc253eb7b | 481 | length) != HAL_OK) |
| JohnnyK | 3:4f5dc253eb7b | 482 | { |
| JohnnyK | 3:4f5dc253eb7b | 483 | while(1); /*Halt on error*/ |
| JohnnyK | 3:4f5dc253eb7b | 484 | } |
| JohnnyK | 3:4f5dc253eb7b | 485 | } |
| JohnnyK | 3:4f5dc253eb7b | 486 | } |
| JohnnyK | 3:4f5dc253eb7b | 487 | |
| JohnnyK | 3:4f5dc253eb7b | 488 | /** |
| JohnnyK | 3:4f5dc253eb7b | 489 | * @brief DMA conversion error callback |
| JohnnyK | 3:4f5dc253eb7b | 490 | * @note This function is executed when the transfer error interrupt |
| JohnnyK | 3:4f5dc253eb7b | 491 | * is generated during DMA transfer |
| JohnnyK | 3:4f5dc253eb7b | 492 | * @retval None |
| JohnnyK | 3:4f5dc253eb7b | 493 | */ |
| JohnnyK | 3:4f5dc253eb7b | 494 | static void DMA_TransferError(DMA_HandleTypeDef *han) |
| JohnnyK | 3:4f5dc253eb7b | 495 | { |
| JohnnyK | 3:4f5dc253eb7b | 496 | |
| JohnnyK | 3:4f5dc253eb7b | 497 | } |
| JohnnyK | 3:4f5dc253eb7b | 498 | |
| JohnnyK | 3:4f5dc253eb7b | 499 | /** |
| JohnnyK | 3:4f5dc253eb7b | 500 | * @brief This function handles DMA Stream interrupt request. |
| JohnnyK | 3:4f5dc253eb7b | 501 | * @param None |
| JohnnyK | 3:4f5dc253eb7b | 502 | * @retval None |
| JohnnyK | 3:4f5dc253eb7b | 503 | */ |
| JohnnyK | 3:4f5dc253eb7b | 504 | void CPY_BUF_DMA_STREAM_IRQHANDLER(void) |
| JohnnyK | 3:4f5dc253eb7b | 505 | { |
| JohnnyK | 3:4f5dc253eb7b | 506 | /* Check the interrupt and clear flag */ |
| JohnnyK | 3:4f5dc253eb7b | 507 | HAL_DMA_IRQHandler(&DmaHandle); |
| JohnnyK | 3:4f5dc253eb7b | 508 | } |
| JohnnyK | 3:4f5dc253eb7b | 509 | |
| JohnnyK | 3:4f5dc253eb7b | 510 | |
| JohnnyK | 3:4f5dc253eb7b | 511 | #if LV_USE_GPU != 0 |
| JohnnyK | 3:4f5dc253eb7b | 512 | |
| JohnnyK | 3:4f5dc253eb7b | 513 | static void Error_Handler(void) |
| JohnnyK | 3:4f5dc253eb7b | 514 | { |
| JohnnyK | 3:4f5dc253eb7b | 515 | while(1) |
| JohnnyK | 3:4f5dc253eb7b | 516 | { |
| JohnnyK | 3:4f5dc253eb7b | 517 | } |
| JohnnyK | 3:4f5dc253eb7b | 518 | } |
| JohnnyK | 3:4f5dc253eb7b | 519 | /** |
| JohnnyK | 3:4f5dc253eb7b | 520 | * @brief DMA2D Transfer completed callback |
| JohnnyK | 3:4f5dc253eb7b | 521 | * @param hdma2d: DMA2D handle. |
| JohnnyK | 3:4f5dc253eb7b | 522 | * @note This example shows a simple way to report end of DMA2D transfer, and |
| JohnnyK | 3:4f5dc253eb7b | 523 | * you can add your own implementation. |
| JohnnyK | 3:4f5dc253eb7b | 524 | * @retval None |
| JohnnyK | 3:4f5dc253eb7b | 525 | */ |
| JohnnyK | 3:4f5dc253eb7b | 526 | static void DMA2D_TransferComplete(DMA2D_HandleTypeDef *hdma2d) |
| JohnnyK | 3:4f5dc253eb7b | 527 | { |
| JohnnyK | 3:4f5dc253eb7b | 528 | |
| JohnnyK | 3:4f5dc253eb7b | 529 | } |
| JohnnyK | 3:4f5dc253eb7b | 530 | |
| JohnnyK | 3:4f5dc253eb7b | 531 | /** |
| JohnnyK | 3:4f5dc253eb7b | 532 | * @brief DMA2D error callbacks |
| JohnnyK | 3:4f5dc253eb7b | 533 | * @param hdma2d: DMA2D handle |
| JohnnyK | 3:4f5dc253eb7b | 534 | * @note This example shows a simple way to report DMA2D transfer error, and you can |
| JohnnyK | 3:4f5dc253eb7b | 535 | * add your own implementation. |
| JohnnyK | 3:4f5dc253eb7b | 536 | * @retval None |
| JohnnyK | 3:4f5dc253eb7b | 537 | */ |
| JohnnyK | 3:4f5dc253eb7b | 538 | static void DMA2D_TransferError(DMA2D_HandleTypeDef *hdma2d) |
| JohnnyK | 3:4f5dc253eb7b | 539 | { |
| JohnnyK | 3:4f5dc253eb7b | 540 | |
| JohnnyK | 3:4f5dc253eb7b | 541 | } |
| JohnnyK | 3:4f5dc253eb7b | 542 | |
| JohnnyK | 3:4f5dc253eb7b | 543 | /** |
| JohnnyK | 3:4f5dc253eb7b | 544 | * @brief DMA2D configuration. |
| JohnnyK | 3:4f5dc253eb7b | 545 | * @note This function Configure the DMA2D peripheral : |
| JohnnyK | 3:4f5dc253eb7b | 546 | * 1) Configure the Transfer mode as memory to memory with blending. |
| JohnnyK | 3:4f5dc253eb7b | 547 | * 2) Configure the output color mode as RGB565 pixel format. |
| JohnnyK | 3:4f5dc253eb7b | 548 | * 3) Configure the foreground |
| JohnnyK | 3:4f5dc253eb7b | 549 | * - first image loaded from FLASH memory |
| JohnnyK | 3:4f5dc253eb7b | 550 | * - constant alpha value (decreased to see the background) |
| JohnnyK | 3:4f5dc253eb7b | 551 | * - color mode as RGB565 pixel format |
| JohnnyK | 3:4f5dc253eb7b | 552 | * 4) Configure the background |
| JohnnyK | 3:4f5dc253eb7b | 553 | * - second image loaded from FLASH memory |
| JohnnyK | 3:4f5dc253eb7b | 554 | * - color mode as RGB565 pixel format |
| JohnnyK | 3:4f5dc253eb7b | 555 | * @retval None |
| JohnnyK | 3:4f5dc253eb7b | 556 | */ |
| JohnnyK | 3:4f5dc253eb7b | 557 | static void DMA2D_Config(void) |
| JohnnyK | 3:4f5dc253eb7b | 558 | { |
| JohnnyK | 3:4f5dc253eb7b | 559 | /* Configure the DMA2D Mode, Color Mode and output offset */ |
| JohnnyK | 3:4f5dc253eb7b | 560 | Dma2dHandle.Init.Mode = DMA2D_M2M_BLEND; |
| JohnnyK | 3:4f5dc253eb7b | 561 | #if LV_COLOR_DEPTH == 16 |
| JohnnyK | 3:4f5dc253eb7b | 562 | Dma2dHandle.Init.ColorMode = DMA2D_RGB565; |
| JohnnyK | 3:4f5dc253eb7b | 563 | #elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 564 | Dma2dHandle.Init.ColorMode = DMA2D_ARGB8888; |
| JohnnyK | 3:4f5dc253eb7b | 565 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 566 | Dma2dHandle.Init.OutputOffset = 0x0; |
| JohnnyK | 3:4f5dc253eb7b | 567 | |
| JohnnyK | 3:4f5dc253eb7b | 568 | /* DMA2D Callbacks Configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 569 | Dma2dHandle.XferCpltCallback = DMA2D_TransferComplete; |
| JohnnyK | 3:4f5dc253eb7b | 570 | Dma2dHandle.XferErrorCallback = DMA2D_TransferError; |
| JohnnyK | 3:4f5dc253eb7b | 571 | |
| JohnnyK | 3:4f5dc253eb7b | 572 | /* Foreground Configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 573 | Dma2dHandle.LayerCfg[1].AlphaMode = DMA2D_REPLACE_ALPHA; |
| JohnnyK | 3:4f5dc253eb7b | 574 | Dma2dHandle.LayerCfg[1].InputAlpha = 0xFF; |
| JohnnyK | 3:4f5dc253eb7b | 575 | #if LV_COLOR_DEPTH == 16 |
| JohnnyK | 3:4f5dc253eb7b | 576 | Dma2dHandle.LayerCfg[1].InputColorMode = DMA2D_INPUT_RGB565; |
| JohnnyK | 3:4f5dc253eb7b | 577 | #elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 578 | Dma2dHandle.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888; |
| JohnnyK | 3:4f5dc253eb7b | 579 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 580 | |
| JohnnyK | 3:4f5dc253eb7b | 581 | Dma2dHandle.LayerCfg[1].InputOffset = 0x0; |
| JohnnyK | 3:4f5dc253eb7b | 582 | |
| JohnnyK | 3:4f5dc253eb7b | 583 | /* Background Configuration */ |
| JohnnyK | 3:4f5dc253eb7b | 584 | Dma2dHandle.LayerCfg[0].AlphaMode = DMA2D_REPLACE_ALPHA; |
| JohnnyK | 3:4f5dc253eb7b | 585 | Dma2dHandle.LayerCfg[0].InputAlpha = 0xFF; |
| JohnnyK | 3:4f5dc253eb7b | 586 | #if LV_COLOR_DEPTH == 16 |
| JohnnyK | 3:4f5dc253eb7b | 587 | Dma2dHandle.LayerCfg[0].InputColorMode = DMA2D_INPUT_RGB565; |
| JohnnyK | 3:4f5dc253eb7b | 588 | #elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32 |
| JohnnyK | 3:4f5dc253eb7b | 589 | Dma2dHandle.LayerCfg[0].InputColorMode = DMA2D_INPUT_ARGB8888; |
| JohnnyK | 3:4f5dc253eb7b | 590 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 591 | Dma2dHandle.LayerCfg[0].InputOffset = 0x0; |
| JohnnyK | 3:4f5dc253eb7b | 592 | |
| JohnnyK | 3:4f5dc253eb7b | 593 | Dma2dHandle.Instance = DMA2D; |
| JohnnyK | 3:4f5dc253eb7b | 594 | |
| JohnnyK | 3:4f5dc253eb7b | 595 | /* DMA2D Initialization */ |
| JohnnyK | 3:4f5dc253eb7b | 596 | if(HAL_DMA2D_Init(&Dma2dHandle) != HAL_OK) |
| JohnnyK | 3:4f5dc253eb7b | 597 | { |
| JohnnyK | 3:4f5dc253eb7b | 598 | /* Initialization Error */ |
| JohnnyK | 3:4f5dc253eb7b | 599 | Error_Handler(); |
| JohnnyK | 3:4f5dc253eb7b | 600 | } |
| JohnnyK | 3:4f5dc253eb7b | 601 | |
| JohnnyK | 3:4f5dc253eb7b | 602 | HAL_DMA2D_ConfigLayer(&Dma2dHandle, 0); |
| JohnnyK | 3:4f5dc253eb7b | 603 | HAL_DMA2D_ConfigLayer(&Dma2dHandle, 1); |
| JohnnyK | 3:4f5dc253eb7b | 604 | } |
| JohnnyK | 3:4f5dc253eb7b | 605 | #endif |
| JohnnyK | 3:4f5dc253eb7b | 606 |