diff options
Diffstat (limited to 'drivers/ugfx/gdisp/st7565')
-rw-r--r-- | drivers/ugfx/gdisp/st7565/board_st7565_template.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/ugfx/gdisp/st7565/board_st7565_template.h b/drivers/ugfx/gdisp/st7565/board_st7565_template.h new file mode 100644 index 000000000..9ab636c95 --- /dev/null +++ b/drivers/ugfx/gdisp/st7565/board_st7565_template.h @@ -0,0 +1,113 @@ +/* + * 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 */ |