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/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.io/license.html
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
// Avoid naming collisions with CubeHAL
#if GFX_COMPAT_V2 && GFX_COMPAT_OLDCOLORS
#undef Red
#undef Green
#undef Blue
#endif
// Include CubeHAL
#include "stm32f4xx_hal.h"
#include "stm324x9i_eval_sdram.h"
// Panel parameters
// This panel is a AMPIRE640480 panel.
static const ltdcConfig driverCfg = {
640, 480, // Width, Height (pixels)
30, 3, // Horizontal, Vertical sync (pixels)
114, 32, // Horizontal, Vertical back porch (pixels)
16, 10, // Horizontal, Vertical front porch (pixels)
0, // Sync flags
0x000000, // Clear color (RGB888)
{ // Background layer config
(LLDCOLOR_TYPE *)SDRAM_DEVICE_ADDR, // Frame buffer address
640, 480, // Width, Height (pixels)
640 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
640, 480, // Size of virtual layer (cx, cy)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_FIX1_FIX2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
},
#if STM32LTDC_USE_LAYER2 || STM32LTDC_USE_DOUBLEBUFFERING
{ // Foreground layer config (if turned on)
(LLDCOLOR_TYPE *)(SDRAM_DEVICE_ADDR+(640 * 480 * LTDC_PIXELBYTES)), // Frame buffer address
640, 480, // Width, Height (pixels)
640 * LTDC_PIXELBYTES, // Line pitch (bytes)
LTDC_PIXELFORMAT, // Pixel format
0, 0, // Start pixel position (x, y)
640, 480, // Size of virtual layer (cx, cy)
0x00000000, // Default color (ARGB8888)
0x000000, // Color key (RGB888)
LTDC_BLEND_MOD1_MOD2, // Blending factors
0, // Palette (RGB888, can be NULL)
0, // Palette length
0xFF, // Constant alpha factor
LTDC_LEF_ENABLE // Layer configuration flags
}
#else
LTDC_UNUSED_LAYER_CONFIG
#endif
};
// LCD Clock values
#define LCD_PLLSAIN_VALUE 192 // 151
#define LCD_PLLSAIR_VALUE 2 // 3
#define LCD_PLLSAIDIVR_VALUE RCC_PLLSAIDIVR_4 // RCC_PLLSAIDIVR_2
static void configureLcdClock(void)
{
#if 1
RCC_PeriphCLKInitTypeDef periph_clk_init_struct;
periph_clk_init_struct.PLLSAI.PLLSAIN = LCD_PLLSAIN_VALUE;
periph_clk_init_struct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
periph_clk_init_struct.PLLSAI.PLLSAIR = LCD_PLLSAIR_VALUE;
periph_clk_init_struct.PLLSAIDivR = LCD_PLLSAIDIVR_VALUE;
HAL_RCCEx_PeriphCLKConfig(&periph_clk_init_struct);
#else
#define LCD_PLLSAIQ_VALUE 7
/* PLLSAI activation.*/
RCC->PLLSAICFGR = (LCD_PLLSAIN_VALUE << 6) | (LCD_PLLSAIR_VALUE << 28) | (LCD_PLLSAIQ_VALUE << 24);
RCC->DCKCFGR = (RCC->DCKCFGR & ~RCC_DCKCFGR_PLLSAIDIVR) | LCD_PLLSAIDIVR_VALUE;
RCC->CR |= RCC_CR_PLLSAION;
while(!(RCC->CR & RCC_CR_PLLSAIRDY)); // wait for PLLSAI to lock
#endif
}
static void configureLcdPins(void)
{
GPIO_InitTypeDef GPIO_Init_Structure;
// Enable peripheral clocks
__GPIOI_CLK_ENABLE();
__GPIOJ_CLK_ENABLE();
__GPIOK_CLK_ENABLE();
/*** LTDC Pins configuration ***/
// GPIOI
GPIO_Init_Structure.Pin = GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
GPIO_Init_Structure.Mode = GPIO_MODE_AF_PP;
GPIO_Init_Structure.Pull = GPIO_NOPULL;
GPIO_Init_Structure.Speed = GPIO_SPEED_FAST;
GPIO_Init_Structure.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOI, &GPIO_Init_Structure);
// GPIOJ
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 | \
GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | \
GPIO_PIN_12 | GPIO_PIN_13 | GPIO_PIN_14 | GPIO_PIN_15;
GPIO_Init_Structure.Mode = GPIO_MODE_AF_PP;
GPIO_Init_Structure.Pull = GPIO_NOPULL;
GPIO_Init_Structure.Speed = GPIO_SPEED_FAST;
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_3 | \
GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7;
GPIO_Init_Structure.Mode = GPIO_MODE_AF_PP;
GPIO_Init_Structure.Pull = GPIO_NOPULL;
GPIO_Init_Structure.Speed = GPIO_SPEED_FAST;
GPIO_Init_Structure.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOK, &GPIO_Init_Structure);
}
static GFXINLINE void init_board(GDisplay* g)
{
(void) g;
// Set LCD pixel clock rate
configureLcdClock();
// Set pin directions
configureLcdPins();
// Initialise the SDRAM
BSP_SDRAM_Init();
}
static GFXINLINE void post_init_board(GDisplay* g)
{
(void) g;
}
static GFXINLINE void set_backlight(GDisplay* g, gU8 percent)
{
(void) g;
(void) percent;
}
#endif /* _GDISP_LLD_BOARD_H */