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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.org/license.html
*/
#ifndef _GDISP_LLD_BOARD_H
#define _GDISP_LLD_BOARD_H
#define ST7565_LCD_BIAS ST7565_LCD_BIAS_9 // actually 6
#define ST7565_ADC ST7565_ADC_NORMAL
#define ST7565_COM_SCAN ST7565_COM_SCAN_DEC
#define ST7565_PAGE_ORDER 0, 1, 2, 3
/*
* Custom page order for several LCD boards, e.g. HEM12864-99
* #define ST7565_PAGE_ORDER 4,5,6,7,0,1,2,3
*/
#define ST7565_GPIOPORT GPIOC
#define ST7565_PORT PORTC
#define ST7565_A0_PIN 7
#define ST7565_RST_PIN 8
#define ST7565_MOSI_PIN 6
#define ST7565_SLCK_PIN 5
#define ST7565_SS_PIN 4
#define palSetPadModeRaw(portname, bits) ST7565_PORT->PCR[ST7565_##portname##_PIN] = bits
#define palSetPadModeNamed(portname, portmode) palSetPadMode(ST7565_GPIOPORT, ST7565_##portname##_PIN, portmode)
#define ST7565_SPI_MODE PORTx_PCRn_DSE | PORTx_PCRn_MUX(2)
// DSPI Clock and Transfer Attributes
// Frame Size: 8 bits
// MSB First
// CLK Low by default
static const SPIConfig spi1config = {
// Operation complete callback or @p NULL.
.end_cb = NULL,
// The chip select line port - when not using pcs.
.ssport = ST7565_GPIOPORT,
// brief The chip select line pad number - when not using pcs.
.sspad = ST7565_SS_PIN,
// SPI initialization data.
.tar0 = SPIx_CTARn_FMSZ(7) // Frame size = 8 bytes
| SPIx_CTARn_ASC(1) // After SCK Delay Scaler (min 50 ns) = 55.56ns
| SPIx_CTARn_DT(0) // Delay After Transfer Scaler (no minimum)= 27.78ns
| SPIx_CTARn_CSSCK(0) // PCS to SCK Delay Scaler (min 20 ns) = 27.78ns
| SPIx_CTARn_PBR(0) // Baud Rate Prescaler = 2
| SPIx_CTARn_BR(0) // Baud rate (min 50ns) = 55.56ns
};
static GFXINLINE void acquire_bus(GDisplay *g) {
(void)g;
// Only the LCD is using the SPI bus, so no need to acquire
// spiAcquireBus(&SPID1);
spiSelect(&SPID1);
}
static GFXINLINE void release_bus(GDisplay *g) {
(void)g;
// Only the LCD is using the SPI bus, so no need to release
// spiReleaseBus(&SPID1);
spiUnselect(&SPID1);
}
static GFXINLINE void init_board(GDisplay *g) {
(void)g;
palSetPadModeNamed(A0, PAL_MODE_OUTPUT_PUSHPULL);
palSetPad(ST7565_GPIOPORT, ST7565_A0_PIN);
palSetPadModeNamed(RST, PAL_MODE_OUTPUT_PUSHPULL);
palSetPad(ST7565_GPIOPORT, ST7565_RST_PIN);
palSetPadModeRaw(MOSI, ST7565_SPI_MODE);
palSetPadModeRaw(SLCK, ST7565_SPI_MODE);
palSetPadModeNamed(SS, PAL_MODE_OUTPUT_PUSHPULL);
spiInit();
spiStart(&SPID1, &spi1config);
release_bus(g);
}
static GFXINLINE void post_init_board(GDisplay *g) { (void)g; }
static GFXINLINE void setpin_reset(GDisplay *g, bool_t state) {
(void)g;
if (state) {
palClearPad(ST7565_GPIOPORT, ST7565_RST_PIN);
} else {
palSetPad(ST7565_GPIOPORT, ST7565_RST_PIN);
}
}
static GFXINLINE void enter_data_mode(GDisplay *g) { palSetPad(ST7565_GPIOPORT, ST7565_A0_PIN); }
static GFXINLINE void enter_cmd_mode(GDisplay *g) { palClearPad(ST7565_GPIOPORT, ST7565_A0_PIN); }
static GFXINLINE void write_data(GDisplay *g, uint8_t *data, uint16_t length) {
(void)g;
spiSend(&SPID1, length, data);
}
#endif /* _GDISP_LLD_BOARD_H */
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