Reina Thibault
Code commenté du projet LED
Dependencies: BSP_DISCO_F746NG
Diff: hal_stm_lvgl/tft/tft.c
- Revision:
- 5:071136c3eefa
- Parent:
- 3:4f5dc253eb7b
--- a/hal_stm_lvgl/tft/tft.c Sun Apr 25 12:35:07 2021 +0000
+++ b/hal_stm_lvgl/tft/tft.c Tue Jun 15 19:35:57 2021 +0000
@@ -2,7 +2,7 @@
* @file tft.c
*
*/
-
+
/*********************
* INCLUDES
*********************/
@@ -10,29 +10,31 @@
#include "lvgl/lvgl.h"
#include <string.h>
#include <stdlib.h>
-
+
#include "tft.h"
#include "stm32f7xx.h"
#include "stm32746g_discovery.h"
#include "stm32746g_discovery_sdram.h"
#include "stm32746g_discovery_ts.h"
#include "../Components/rk043fn48h/rk043fn48h.h"
-
+
/*********************
* DEFINES
*********************/
-
+
#if LV_COLOR_DEPTH != 16 && LV_COLOR_DEPTH != 24 && LV_COLOR_DEPTH != 32
#error LV_COLOR_DEPTH must be 16, 24, or 32
#endif
+#define LV_USE_GPU 0
+
/**
* @brief LCD status structure definition
*/
#define LCD_OK ((uint8_t)0x00)
#define LCD_ERROR ((uint8_t)0x01)
#define LCD_TIMEOUT ((uint8_t)0x02)
-
+
/**
* @brief LCD special pins
*/
@@ -41,45 +43,45 @@
#define LCD_DISP_GPIO_PORT GPIOI
#define LCD_DISP_GPIO_CLK_ENABLE() __HAL_RCC_GPIOI_CLK_ENABLE()
#define LCD_DISP_GPIO_CLK_DISABLE() __HAL_RCC_GPIOI_CLK_DISABLE()
-
+
/* Backlight control pin */
#define LCD_BL_CTRL_PIN GPIO_PIN_3
#define LCD_BL_CTRL_GPIO_PORT GPIOK
#define LCD_BL_CTRL_GPIO_CLK_ENABLE() __HAL_RCC_GPIOK_CLK_ENABLE()
#define LCD_BL_CTRL_GPIO_CLK_DISABLE() __HAL_RCC_GPIOK_CLK_DISABLE()
-
+
#define CPY_BUF_DMA_STREAM DMA2_Stream0
#define CPY_BUF_DMA_CHANNEL DMA_CHANNEL_0
#define CPY_BUF_DMA_STREAM_IRQ DMA2_Stream0_IRQn
#define CPY_BUF_DMA_STREAM_IRQHANDLER DMA2_Stream0_IRQHandler
-
+
/**********************
* TYPEDEFS
**********************/
-
+
/**********************
* STATIC PROTOTYPES
**********************/
-
+
/*These 3 functions are needed by LittlevGL*/
static void ex_disp_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t * color_p);
#if LV_USE_GPU
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);
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);
#endif
-
+
static uint8_t LCD_Init(void);
static void LCD_LayerRgb565Init(uint32_t FB_Address);
static void LCD_DisplayOn(void);
-
+
static void DMA_Config(void);
static void DMA_TransferComplete(DMA_HandleTypeDef *han);
static void DMA_TransferError(DMA_HandleTypeDef *han);
-
+
#if LV_USE_GPU
static void DMA2D_Config(void);
#endif
-
+
/**********************
* STATIC VARIABLES
**********************/
@@ -87,19 +89,19 @@
static DMA2D_HandleTypeDef Dma2dHandle;
#endif
static LTDC_HandleTypeDef hLtdcHandler;
-
+
#if LV_COLOR_DEPTH == 16
typedef uint16_t uintpixel_t;
#elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32
typedef uint32_t uintpixel_t;
#endif
-
+
/* You can try to change buffer to internal ram by uncommenting line below and commenting
* SDRAM one. */
//static uintpixel_t my_fb[TFT_HOR_RES * TFT_VER_RES];
-
+
static __IO uintpixel_t * my_fb = (__IO uintpixel_t*) (SDRAM_DEVICE_ADDR);
-
+
static DMA_HandleTypeDef DmaHandle;
static int32_t x1_flush;
static int32_t y1_flush;
@@ -107,107 +109,108 @@
static int32_t y2_fill;
static int32_t y_fill_act;
static const lv_color_t * buf_to_flush;
-
+static lv_disp_drv_t disp_drv;
+
static lv_disp_t *our_disp = NULL;
/**********************
* MACROS
**********************/
-
+
/**
* Initialize your display here
*/
-
+
void tft_init(void)
{
- /* There is only one display on STM32 */
- if(our_disp != NULL)
- abort();
+ /* There is only one display on STM32 */
+ if(our_disp != NULL)
+ abort();
/* LCD Initialization */
LCD_Init();
-
+
/* LCD Initialization */
LCD_LayerRgb565Init((uint32_t)my_fb);
-
+
/* Enable the LCD */
LCD_DisplayOn();
-
+
DMA_Config();
-
+
#if LV_USE_GPU != 0
DMA2D_Config();
#endif
/*-----------------------------
- * Create a buffer for drawing
- *----------------------------*/
-
+ * Create a buffer for drawing
+ *----------------------------*/
+
/* LittlevGL requires a buffer where it draws the objects. The buffer's has to be greater than 1 display row*/
-
- static lv_disp_buf_t disp_buf_1;
- static lv_color_t buf1_1[LV_HOR_RES_MAX * 68];
- static lv_color_t buf1_2[LV_HOR_RES_MAX * 68];
- lv_disp_buf_init(&disp_buf_1, buf1_1, buf1_2, LV_HOR_RES_MAX * 68); /*Initialize the display buffer*/
-
-
- /*-----------------------------------
- * Register the display in LittlevGL
- *----------------------------------*/
-
- lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
- lv_disp_drv_init(&disp_drv); /*Basic initialization*/
-
- /*Set up the functions to access to your display*/
-
- /*Set the resolution of the display*/
- disp_drv.hor_res = 480;
- disp_drv.ver_res = 272;
-
- /*Used to copy the buffer's content to the display*/
- disp_drv.flush_cb = ex_disp_flush;
-
- /*Set a display buffer*/
- disp_drv.buffer = &disp_buf_1;
-
-
- /*Finally register the driver*/
- our_disp = lv_disp_drv_register(&disp_drv);
+
+ static lv_disp_draw_buf_t buf;
+ static lv_color_t buf1_1[TFT_HOR_RES * 68];
+ static lv_color_t buf1_2[TFT_HOR_RES * 68];
+ lv_disp_draw_buf_init(&buf, buf1_1, buf1_2, TFT_HOR_RES * 68); /*Initialize the display buffer*/
+
+
+ /*-----------------------------------
+ * Register the display in LittlevGL
+ *----------------------------------*/
+
+ /*Descriptor of a display driver*/
+ lv_disp_drv_init(&disp_drv); /*Basic initialization*/
+
+ /*Set up the functions to access to your display*/
+
+ /*Set the resolution of the display*/
+ disp_drv.hor_res = TFT_HOR_RES;
+ disp_drv.ver_res = TFT_VER_RES;
+
+ /*Used to copy the buffer's content to the display*/
+ disp_drv.flush_cb = ex_disp_flush;
+
+ /*Set a display buffer*/
+ disp_drv.draw_buf = &buf;
+
+
+ /*Finally register the driver*/
+ our_disp = lv_disp_drv_register(&disp_drv);
}
-
+
/**********************
* STATIC FUNCTIONS
**********************/
-
+
/* Flush the content of the internal buffer the specific area on the display
* You can use DMA or any hardware acceleration to do this operation in the background but
* 'lv_flush_ready()' has to be called when finished
* This function is required only when LV_VDB_SIZE != 0 in lv_conf.h*/
static void ex_disp_flush(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t * color_p)
{
- int32_t x1 = area->x1;
- int32_t x2 = area->x2;
- int32_t y1 = area->y1;
- int32_t y2 = area->y2;
+ int32_t x1 = area->x1;
+ int32_t x2 = area->x2;
+ int32_t y1 = area->y1;
+ int32_t y2 = area->y2;
/*Return if the area is out the screen*/
-
+
if(x2 < 0) return;
if(y2 < 0) return;
if(x1 > TFT_HOR_RES - 1) return;
if(y1 > TFT_VER_RES - 1) return;
-
+
/*Truncate the area to the screen*/
int32_t act_x1 = x1 < 0 ? 0 : x1;
int32_t act_y1 = y1 < 0 ? 0 : y1;
int32_t act_x2 = x2 > TFT_HOR_RES - 1 ? TFT_HOR_RES - 1 : x2;
int32_t act_y2 = y2 > TFT_VER_RES - 1 ? TFT_VER_RES - 1 : y2;
-
+
x1_flush = act_x1;
y1_flush = act_y1;
x2_flush = act_x2;
y2_fill = act_y2;
y_fill_act = act_y1;
buf_to_flush = color_p;
-
- SCB_CleanInvalidateDCache();
- SCB_InvalidateICache();
+
+ SCB_CleanInvalidateDCache();
+ SCB_InvalidateICache();
/*##-7- Start the DMA transfer using the interrupt mode #*/
/* Configure the source, destination and buffer size DMA fields and Start DMA Stream transfer */
/* Enable All the DMA interrupts */
@@ -220,18 +223,18 @@
length);
if(err != HAL_OK)
{
- while(1); /*Halt on error*/
+ while(1); /*Halt on error*/
}
}
-
-
+
+
/**
* @brief Configure LCD pins, and peripheral clocks.
*/
static void LCD_MspInit(void)
{
GPIO_InitTypeDef gpio_init_structure;
-
+
/* Enable the LTDC and DMA2D clocks */
__HAL_RCC_LTDC_CLK_ENABLE();
#if LV_USE_GPU != 0
@@ -245,7 +248,7 @@
__HAL_RCC_GPIOK_CLK_ENABLE();
LCD_DISP_GPIO_CLK_ENABLE();
LCD_BL_CTRL_GPIO_CLK_ENABLE();
-
+
/*** LTDC Pins configuration ***/
/* GPIOE configuration */
gpio_init_structure.Pin = GPIO_PIN_4;
@@ -254,20 +257,20 @@
gpio_init_structure.Speed = GPIO_SPEED_FAST;
gpio_init_structure.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOE, &gpio_init_structure);
-
+
/* GPIOG configuration */
gpio_init_structure.Pin = GPIO_PIN_12;
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOG, &gpio_init_structure);
-
+
/* GPIOI LTDC alternate configuration */
gpio_init_structure.Pin = GPIO_PIN_9 | GPIO_PIN_10 | \
GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOI, &gpio_init_structure);
-
+
/* GPIOJ configuration */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | \
GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7 | \
@@ -276,32 +279,32 @@
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOJ, &gpio_init_structure);
-
+
/* GPIOK configuration */
gpio_init_structure.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_4 | \
GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
gpio_init_structure.Mode = GPIO_MODE_AF_PP;
gpio_init_structure.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOK, &gpio_init_structure);
-
+
/* LCD_DISP GPIO configuration */
gpio_init_structure.Pin = LCD_DISP_PIN; /* LCD_DISP pin has to be manually controlled */
gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
HAL_GPIO_Init(LCD_DISP_GPIO_PORT, &gpio_init_structure);
-
+
/* LCD_BL_CTRL GPIO configuration */
gpio_init_structure.Pin = LCD_BL_CTRL_PIN; /* LCD_BL_CTRL pin has to be manually controlled */
gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
HAL_GPIO_Init(LCD_BL_CTRL_GPIO_PORT, &gpio_init_structure);
}
-
+
/**
* @brief Configure LTDC PLL.
*/
static void LCD_ClockConfig(void)
{
static RCC_PeriphCLKInitTypeDef periph_clk_init_struct;
-
+
/* RK043FN48H LCD clock configuration */
/* PLLSAI_VCO Input = HSE_VALUE/PLL_M = 1 Mhz */
/* PLLSAI_VCO Output = PLLSAI_VCO Input * PLLSAIN = 192 Mhz */
@@ -313,7 +316,7 @@
periph_clk_init_struct.PLLSAIDivR = RCC_PLLSAIDIVR_4;
HAL_RCCEx_PeriphCLKConfig(&periph_clk_init_struct);
}
-
+
/**
* @brief Initializes the LCD.
* @retval LCD state
@@ -321,7 +324,7 @@
static uint8_t LCD_Init(void)
{
/* Select the used LCD */
-
+
/* The RK043FN48H LCD 480x272 is selected */
/* Timing Configuration */
hLtdcHandler.Init.HorizontalSync = (RK043FN48H_HSYNC - 1);
@@ -332,60 +335,60 @@
hLtdcHandler.Init.AccumulatedActiveW = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP - 1);
hLtdcHandler.Init.TotalHeigh = (RK043FN48H_HEIGHT + RK043FN48H_VSYNC + RK043FN48H_VBP + RK043FN48H_VFP - 1);
hLtdcHandler.Init.TotalWidth = (RK043FN48H_WIDTH + RK043FN48H_HSYNC + RK043FN48H_HBP + RK043FN48H_HFP - 1);
-
+
/* LCD clock configuration */
LCD_ClockConfig();
-
+
/* Initialize the LCD pixel width and pixel height */
hLtdcHandler.LayerCfg->ImageWidth = RK043FN48H_WIDTH;
hLtdcHandler.LayerCfg->ImageHeight = RK043FN48H_HEIGHT;
-
+
/* Background value */
hLtdcHandler.Init.Backcolor.Blue = 0;
hLtdcHandler.Init.Backcolor.Green = 0;
hLtdcHandler.Init.Backcolor.Red = 0;
-
+
/* Polarity */
hLtdcHandler.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hLtdcHandler.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hLtdcHandler.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hLtdcHandler.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hLtdcHandler.Instance = LTDC;
-
+
if(HAL_LTDC_GetState(&hLtdcHandler) == HAL_LTDC_STATE_RESET)
{
/* Initialize the LCD Msp: this __weak function can be rewritten by the application */
LCD_MspInit();
}
HAL_LTDC_Init(&hLtdcHandler);
-
+
/* Assert display enable LCD_DISP pin */
HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET);
-
+
/* Assert backlight LCD_BL_CTRL pin */
HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET);
-
+
BSP_SDRAM_Init();
-
+
uint32_t i;
for(i = 0; i < (TFT_HOR_RES * TFT_VER_RES) ; i++)
{
my_fb[i] = 0;
}
-
+
return LCD_OK;
}
-
+
static void LCD_LayerRgb565Init(uint32_t FB_Address)
{
LTDC_LayerCfgTypeDef layer_cfg;
-
+
/* Layer Init */
layer_cfg.WindowX0 = 0;
layer_cfg.WindowX1 = TFT_HOR_RES;
layer_cfg.WindowY0 = 0;
layer_cfg.WindowY1 = TFT_VER_RES;
-
+
#if LV_COLOR_DEPTH == 16
layer_cfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
#elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32
@@ -403,10 +406,10 @@
layer_cfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
layer_cfg.ImageWidth = TFT_HOR_RES;
layer_cfg.ImageHeight = TFT_VER_RES;
-
+
HAL_LTDC_ConfigLayer(&hLtdcHandler, &layer_cfg, 0);
}
-
+
static void LCD_DisplayOn(void)
{
/* Display On */
@@ -414,12 +417,12 @@
HAL_GPIO_WritePin(LCD_DISP_GPIO_PORT, LCD_DISP_PIN, GPIO_PIN_SET); /* Assert LCD_DISP pin */
HAL_GPIO_WritePin(LCD_BL_CTRL_GPIO_PORT, LCD_BL_CTRL_PIN, GPIO_PIN_SET); /* Assert LCD_BL_CTRL pin */
}
-
+
static void DMA_Config(void)
{
/*## -1- Enable DMA2 clock #################################################*/
__HAL_RCC_DMA2_CLK_ENABLE();
-
+
/*##-2- Select the DMA functional Parameters ###############################*/
DmaHandle.Init.Channel = CPY_BUF_DMA_CHANNEL; /* DMA_CHANNEL_0 */
DmaHandle.Init.Direction = DMA_MEMORY_TO_MEMORY; /* M2M transfer mode */
@@ -433,10 +436,10 @@
DmaHandle.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_1QUARTERFULL; /* FIFO threshold: 1/4 full */
DmaHandle.Init.MemBurst = DMA_MBURST_SINGLE; /* Memory burst */
DmaHandle.Init.PeriphBurst = DMA_PBURST_SINGLE; /* Peripheral burst */
-
+
/*##-3- Select the DMA instance to be used for the transfer : DMA2_Stream0 #*/
DmaHandle.Instance = CPY_BUF_DMA_STREAM;
-
+
/*##-4- Initialize the DMA stream ##########################################*/
if(HAL_DMA_Init(&DmaHandle) != HAL_OK)
{
@@ -444,16 +447,16 @@
{
}
}
-
+
/*##-5- Select Callbacks functions called after Transfer complete and Transfer error */
HAL_DMA_RegisterCallback(&DmaHandle, HAL_DMA_XFER_CPLT_CB_ID, DMA_TransferComplete);
HAL_DMA_RegisterCallback(&DmaHandle, HAL_DMA_XFER_ERROR_CB_ID, DMA_TransferError);
-
+
/*##-6- Configure NVIC for DMA transfer complete/error interrupts ##########*/
HAL_NVIC_SetPriority(CPY_BUF_DMA_STREAM_IRQ, 0, 0);
HAL_NVIC_EnableIRQ(CPY_BUF_DMA_STREAM_IRQ);
}
-
+
/**
* @brief DMA conversion complete callback
* @note This function is executed when the transfer complete interrupt
@@ -463,13 +466,13 @@
static void DMA_TransferComplete(DMA_HandleTypeDef *han)
{
y_fill_act ++;
-
+
if(y_fill_act > y2_fill) {
- SCB_CleanInvalidateDCache();
- SCB_InvalidateICache();
- lv_disp_flush_ready(&our_disp->driver);
+ SCB_CleanInvalidateDCache();
+ SCB_InvalidateICache();
+ lv_disp_flush_ready(&disp_drv);
} else {
- uint32_t length = (x2_flush - x1_flush + 1);
+ uint32_t length = (x2_flush - x1_flush + 1);
buf_to_flush += x2_flush - x1_flush + 1;
/*##-7- Start the DMA transfer using the interrupt mode ####################*/
/* Configure the source, destination and buffer size DMA fields and Start DMA Stream transfer */
@@ -480,11 +483,11 @@
if(HAL_DMA_Start_IT(han,(uint32_t)buf_to_flush, (uint32_t)&my_fb[y_fill_act * TFT_HOR_RES + x1_flush],
length) != HAL_OK)
{
- while(1); /*Halt on error*/
+ while(1); /*Halt on error*/
}
}
}
-
+
/**
* @brief DMA conversion error callback
* @note This function is executed when the transfer error interrupt
@@ -493,9 +496,9 @@
*/
static void DMA_TransferError(DMA_HandleTypeDef *han)
{
-
+
}
-
+
/**
* @brief This function handles DMA Stream interrupt request.
* @param None
@@ -506,10 +509,10 @@
/* Check the interrupt and clear flag */
HAL_DMA_IRQHandler(&DmaHandle);
}
-
-
+
+
#if LV_USE_GPU != 0
-
+
static void Error_Handler(void)
{
while(1)
@@ -525,9 +528,9 @@
*/
static void DMA2D_TransferComplete(DMA2D_HandleTypeDef *hdma2d)
{
-
+
}
-
+
/**
* @brief DMA2D error callbacks
* @param hdma2d: DMA2D handle
@@ -537,9 +540,9 @@
*/
static void DMA2D_TransferError(DMA2D_HandleTypeDef *hdma2d)
{
-
+
}
-
+
/**
* @brief DMA2D configuration.
* @note This function Configure the DMA2D peripheral :
@@ -564,11 +567,11 @@
Dma2dHandle.Init.ColorMode = DMA2D_ARGB8888;
#endif
Dma2dHandle.Init.OutputOffset = 0x0;
-
+
/* DMA2D Callbacks Configuration */
Dma2dHandle.XferCpltCallback = DMA2D_TransferComplete;
Dma2dHandle.XferErrorCallback = DMA2D_TransferError;
-
+
/* Foreground Configuration */
Dma2dHandle.LayerCfg[1].AlphaMode = DMA2D_REPLACE_ALPHA;
Dma2dHandle.LayerCfg[1].InputAlpha = 0xFF;
@@ -577,9 +580,9 @@
#elif LV_COLOR_DEPTH == 24 || LV_COLOR_DEPTH == 32
Dma2dHandle.LayerCfg[1].InputColorMode = DMA2D_INPUT_ARGB8888;
#endif
-
+
Dma2dHandle.LayerCfg[1].InputOffset = 0x0;
-
+
/* Background Configuration */
Dma2dHandle.LayerCfg[0].AlphaMode = DMA2D_REPLACE_ALPHA;
Dma2dHandle.LayerCfg[0].InputAlpha = 0xFF;
@@ -589,18 +592,17 @@
Dma2dHandle.LayerCfg[0].InputColorMode = DMA2D_INPUT_ARGB8888;
#endif
Dma2dHandle.LayerCfg[0].InputOffset = 0x0;
-
+
Dma2dHandle.Instance = DMA2D;
-
+
/* DMA2D Initialization */
if(HAL_DMA2D_Init(&Dma2dHandle) != HAL_OK)
{
/* Initialization Error */
Error_Handler();
}
-
+
HAL_DMA2D_ConfigLayer(&Dma2dHandle, 0);
HAL_DMA2D_ConfigLayer(&Dma2dHandle, 1);
}
-#endif
-
+#endif
\ No newline at end of file