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5.8 KiB

/*
* 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
*
* Mail: fede.677387@hotmail.it
*
* Board: STM32F3-Discovery
*/
/**
* @file boards/addons/gdisp/board_SPFD54124B_stm32f3.h
* @brief GDISP Graphic Driver subsystem board interface for the SPFD54124B display.
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define SPFD54124B_SPID SPID2
#define SPFD54124B_SPI_PORT GPIOB
#define SPFD54124B_SPI_NSS 12
#define SPFD54124B_SPI_SCK 13
#define SPFD54124B_SPI_MISO 14 // not used
#define SPFD54124B_SPI_MOSI 15
#define SPFD54124B_PIN_PORT GPIOA
#define SPFD54124B_PIN_RST 5
#define SET_RST palSetPad(SPFD54124B_PIN_PORT, SPFD54124B_PIN_RST);
#define CLR_RST palClearPad(SPFD54124B_PIN_PORT, SPFD54124B_PIN_RST);
#define USE_SOFT_SPI GFXON
#define USE_HARD_SPI !(USE_SOFT_SPI)
#if USE_HARD_SPI
#if GFX_USE_OS_CHIBIOS
static gI32 thdPriority = 0;
#endif
/*
* Maximum speed SPI configuration in 9 bit mode
*/
static const SPIConfig hs_spicfg = {
NULL, /* Operation complete callback or @p NULL. */
SPFD54124B_SPI_PORT, /* The chip select line port */
SPFD54124B_SPI_NSS, /* The chip select line pad number */
0, /* SPI CR1 register initialization data*/
SPI_CR2_DS_3 /* SPI CR2 register initialization data 9-bit */
};
#endif
#if USE_SOFT_SPI
static GFXINLINE void soft_spi_sck(void){
palSetPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_SCK);
palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_SCK);
}
static GFXINLINE void soft_spi_write_9bit(gU16 data){
gU8 i;
// activate lcd by low on CS pin
palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_NSS);
for (i=0; i<9; i++){
// setting data
if(data & (SPFD54124B_SEND_DATA >> i)) {
palSetPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MOSI);
}
else palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MOSI);
// clock data
soft_spi_sck();
}
//deactivate lcd by high on CS pin
palSetPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_NSS);
}
#endif
static GFXINLINE void setpin_reset(GDisplay *g, gBool state) {
(void) g;
if(state) {
CLR_RST;
} else {
SET_RST;
}
}
static GFXINLINE void init_board(GDisplay *g) {
// As we are not using multiple displays we set g->board to NULL as we don't use it.
g->board = 0;
switch(g->controllerdisplay) {
case 0: // Set up for Display 0
/*
* SPI1 I/O pins setup.
*/
palSetPadMode(SPFD54124B_PIN_PORT, SPFD54124B_PIN_RST, PAL_MODE_OUTPUT_PUSHPULL); /* RESET */
setpin_reset(g, gTrue);
#if USE_HARD_SPI
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_SCK, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST); /* SCK. */
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MISO, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST); /* MISO.*/
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MOSI, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST); /* MOSI.*/
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_NSS, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); /* NSS */
palSetPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_NSS);
palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_SCK);
palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MOSI);
spiInit();
#endif
#if USE_SOFT_SPI
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_SCK, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); /* SCK. */
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MISO, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); /* MISO.*/
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MOSI, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); /* MOSI.*/
palSetPadMode(SPFD54124B_SPI_PORT, SPFD54124B_SPI_NSS, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST); /* NSS */
palSetPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_NSS);
palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_SCK);
palClearPad(SPFD54124B_SPI_PORT, SPFD54124B_SPI_MOSI);
#endif
break;
}
}
static GFXINLINE void acquire_bus(GDisplay *g) {
(void) g;
#if USE_HARD_SPI
#if GFX_USE_OS_CHIBIOS
thdPriority = (gI32)chThdGetPriority();
chThdSetPriority(HIGHPRIO);
#endif
spiAcquireBus(&SPFD54124B_SPID);
#endif
}
static GFXINLINE void release_bus(GDisplay *g) {
(void) g;
#if USE_HARD_SPI
#if GFX_USE_OS_CHIBIOS
chThdSetPriority(thdPriority);
#endif
spiReleaseBus(&SPFD54124B_SPID);
#endif
}
static GFXINLINE void write_data(GDisplay *g, gU16 data) {
(void) g;
gU16 b;
#if USE_HARD_SPI
spiStart(&SPFD54124B_SPID, &hs_spicfg);
spiSelect(&SPFD54124B_SPID);
b = (data >> 0x08) | SPFD54124B_SEND_DATA;
spiSend(&SPFD54124B_SPID, 0x01, &b);
b = (data & 0xFF) | SPFD54124B_SEND_DATA;
spiSend(&SPFD54124B_SPID, 0x01, &b);
spiUnselect(&SPFD54124B_SPID);
spiStop(&SPFD54124B_SPID);
#endif
#if USE_SOFT_SPI
b = (data >> 0x08) | SPFD54124B_SEND_DATA;
soft_spi_write_9bit(b);
b = (data & 0xFF) | SPFD54124B_SEND_DATA;
soft_spi_write_9bit(b);
#endif
}
static GFXINLINE void write_index(GDisplay *g, gU16 index) {
(void) g;
#if USE_HARD_SPI
spiStart(&SPFD54124B_SPID, &hs_spicfg);
spiSelect(&SPFD54124B_SPID);
spiSend(&SPFD54124B_SPID, 0x01, &index);
spiUnselect(&SPFD54124B_SPID);
spiStop(&SPFD54124B_SPID);
#endif
#if USE_SOFT_SPI
soft_spi_write_9bit(index);
#endif
}
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 */