94 lines
1.9 KiB
C
94 lines
1.9 KiB
C
#ifndef _GDISP_LLD_BOARD_H
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#define _GDISP_LLD_BOARD_H
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// Pin & SPI setup
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#define SPI_DRIVER (&SPID2)
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#define SPI_PORT GPIOB
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#define SCK_PAD 10
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#define MOSI_PAD 15
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#define CS_PORT GPIOB
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#define RESET_PORT GPIOB
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#define DC_PORT GPIOB
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#define CS_PAD 3 // 0 = chip selected
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#define RESET_PAD 4 // 0 = reset
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#define DC_PAD 5 // control = 0, data = 1
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static SPIConfig spi_cfg = {
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NULL,
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CS_PORT,
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CS_PAD,
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SPI_CR1_BR_1
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};
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static GFXINLINE void init_board(GDisplay* g)
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{
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(void)g;
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g->board = 0;
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// Set pin modes
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palSetPadMode(SPI_PORT, SCK_PAD, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(SPI_PORT, MOSI_PAD, PAL_MODE_ALTERNATE(5) | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(RESET_PORT, RESET_PAD, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(CS_PORT, CS_PAD, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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palSetPadMode(DC_PORT, DC_PAD, PAL_MODE_OUTPUT_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
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// Apply default states
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palSetPad(CS_PORT, CS_PAD);
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palSetPad(RESET_PORT, RESET_PAD);
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palClearPad(DC_PORT, DC_PAD);
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// Start the SPI driver
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spiStart(SPI_DRIVER, &spi_cfg);
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}
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static GFXINLINE void post_init_board(GDisplay* g)
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{
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(void)g;
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}
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static GFXINLINE void setpin_reset(GDisplay *g, gBool state)
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{
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(void)g;
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palWritePad(RESET_PORT, RESET_PAD, !state);
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}
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static GFXINLINE void acquire_bus(GDisplay* g)
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{
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(void)g;
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spiAcquireBus(SPI_DRIVER);
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spiSelect(SPI_DRIVER);
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}
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static GFXINLINE void release_bus(GDisplay* g)
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{
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(void)g;
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spiUnselect(SPI_DRIVER);
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spiReleaseBus(SPI_DRIVER);
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}
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static GFXINLINE void write_cmd(GDisplay* g, uint8_t cmd)
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{
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(void)g;
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static uint8_t buf;
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palClearPad(DC_PORT, DC_PAD);
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buf = cmd;
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spiSend(SPI_DRIVER, 1, &buf);
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}
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static GFXINLINE void write_data(GDisplay* g, uint8_t* data, uint16_t length)
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{
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(void)g;
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palSetPad(DC_PORT, DC_PAD);
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spiSend(SPI_DRIVER, length, data);
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}
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#endif /* _GDISP_LLD_BOARD_H */
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