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