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/*
* This board file is used for the following setup:
* An ILI9488 display controller connected to an STM32F446VET micro controller through a 16-bit
* parallel interface (Intel 8080 compatible). The FMC interface of the STM32 micro controller is used.
* LCD_CS is hooked up to NE1 (first SRAM bank) and LCD_RS is hooked up to A16.
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#include "stm32f4xx_hal.h"
#define GDISP_REG (*((volatile gU16 *) 0x60000000)) /* RS = 0 */
#define GDISP_RAM (*((volatile gU16 *) 0x60020000)) /* RS = 1 */
static GFXINLINE void init_board(GDisplay *g)
{
GPIO_InitTypeDef GPIO_InitStruct;
SRAM_HandleTypeDef hsram;
FMC_NORSRAM_TimingTypeDef Timing;
(void)g;
// Peripheral clocks
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_FMC_CLK_ENABLE();
// PC6 (backlight)
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
// PD3 (reset)
GPIO_InitStruct.Pin = GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
// FSMC
{
// Common GPIO configuration
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
// GPIOD configuration
GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_7 | GPIO_PIN_8 |\
GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_14 | GPIO_PIN_15;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
// GPIOE configuration
GPIO_InitStruct.Pin = 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;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
// SRAM device configuration
hsram.Instance = FMC_NORSRAM_DEVICE;
hsram.Extended = FMC_NORSRAM_EXTENDED_DEVICE;
// hsram.Init
hsram.Init.NSBank = FMC_NORSRAM_BANK1;
hsram.Init.DataAddressMux = FMC_DATA_ADDRESS_MUX_DISABLE;
hsram.Init.MemoryType = FMC_MEMORY_TYPE_SRAM;
hsram.Init.MemoryDataWidth = FMC_NORSRAM_MEM_BUS_WIDTH_16;
hsram.Init.BurstAccessMode = FMC_BURST_ACCESS_MODE_DISABLE;
hsram.Init.WaitSignalPolarity = FMC_WAIT_SIGNAL_POLARITY_LOW;
hsram.Init.WaitSignalActive = FMC_WAIT_TIMING_BEFORE_WS;
hsram.Init.WriteOperation = FMC_WRITE_OPERATION_ENABLE;
hsram.Init.WaitSignal = FMC_WAIT_SIGNAL_DISABLE;
hsram.Init.ExtendedMode = FMC_EXTENDED_MODE_DISABLE;
hsram.Init.AsynchronousWait = FMC_ASYNCHRONOUS_WAIT_DISABLE;
hsram.Init.WriteBurst = FMC_WRITE_BURST_DISABLE;
hsram.Init.ContinuousClock = FMC_CONTINUOUS_CLOCK_SYNC_ONLY;
hsram.Init.WriteFifo = FMC_WRITE_FIFO_ENABLE;
hsram.Init.PageSize = FMC_PAGE_SIZE_NONE;
// Timings
Timing.AddressSetupTime = 0;
Timing.AddressHoldTime = 0;
Timing.DataSetupTime = 150;
Timing.BusTurnAroundDuration = 0;
Timing.CLKDivision = 0;
Timing.DataLatency = 0;
Timing.AccessMode = FMC_ACCESS_MODE_A;
HAL_SRAM_Init(&hsram, &Timing, NULL);
}
}
static GFXINLINE void post_init_board(GDisplay* g)
{
(void) g;
}
static GFXINLINE void setpin_reset(GDisplay *g, gBool state)
{
(void) g;
if (state) {
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_3, GPIO_PIN_SET);
} else {
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_3, GPIO_PIN_RESET);
}
}
static GFXINLINE void set_backlight(GDisplay* g, gU8 percent)
{
(void) g;
if (percent > 0) {
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_6, GPIO_PIN_SET);
} else {
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_6, GPIO_PIN_RESET);
}
}
static GFXINLINE void acquire_bus(GDisplay* g)
{
(void) g;
}
static GFXINLINE void release_bus(GDisplay* g)
{
(void) g;
}
static GFXINLINE void write_index(GDisplay* g, gU16 index)
{
(void) g;
GDISP_REG = index;
}
static GFXINLINE void write_data(GDisplay* g, gU16 data)
{
(void) g;
GDISP_RAM = data;
}
static GFXINLINE void setreadmode(GDisplay* g)
{
(void) g;
}
static GFXINLINE void setwritemode(GDisplay* g)
{
(void) g;
}
static GFXINLINE gU16 read_data(GDisplay* g)
{
(void) g;
return (gU16)GDISP_RAM;
}
#endif /* _GDISP_LLD_BOARD_H */