diff options
Diffstat (limited to 'keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox')
5 files changed, 484 insertions, 0 deletions
diff --git a/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/board_ST7565.h b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/board_ST7565.h new file mode 100644 index 0000000000..290571ce5b --- /dev/null +++ b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/board_ST7565.h @@ -0,0 +1,127 @@ +/* + * 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 + +#include "print.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 = { + NULL, + /* HW dependent part.*/ + ST7565_GPIOPORT, + ST7565_SS_PIN, + SPIx_CTARn_FMSZ(7) + | SPIx_CTARn_ASC(7) + | SPIx_CTARn_DT(7) + | SPIx_CTARn_CSSCK(7) + | SPIx_CTARn_PBR(0) + | SPIx_CTARn_BR(7) + //SPI_CR1_BR_0 +}; + +static bool_t st7565_is_data_mode = 1; + +static GFXINLINE void init_board(GDisplay *g) { + (void) g; + palSetPadModeNamed(A0, PAL_MODE_OUTPUT_PUSHPULL); + palSetPad(ST7565_GPIOPORT, ST7565_A0_PIN); + st7565_is_data_mode = 1; + palSetPadModeNamed(RST, PAL_MODE_OUTPUT_PUSHPULL); + palSetPad(ST7565_GPIOPORT, ST7565_RST_PIN); + palSetPadModeRaw(MOSI, ST7565_SPI_MODE); + palSetPadModeRaw(SLCK, ST7565_SPI_MODE); + palSetPadModeRaw(SS, ST7565_SPI_MODE); + + spiInit(); + spiStart(&SPID1, &spi1config); + spiSelect(&SPID1); +} + +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 acquire_bus(GDisplay *g) { + (void) g; + // Only the LCD is using the SPI bus, so no need to acquire + // spiAcquireBus(&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); +} + +static GFXINLINE void write_cmd(GDisplay *g, uint8_t cmd) { + (void) g; + if (st7565_is_data_mode) { + // The sleeps need to be at lest 10 vs 25 ns respectively + // So let's sleep two ticks, one tick might not be enough + // if we are at the end of the tick + chThdSleep(2); + palClearPad(ST7565_GPIOPORT, ST7565_A0_PIN); + chThdSleep(2); + st7565_is_data_mode = 0; + } + spiSend(&SPID1, 1, &cmd); +} + +static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) { + (void) g; + if (!st7565_is_data_mode) { + // The sleeps need to be at lest 10 vs 25 ns respectively + // So let's sleep two ticks, one tick might not be enough + // if we are at the end of the tick + chThdSleep(2); + palSetPad(ST7565_GPIOPORT, ST7565_A0_PIN); + chThdSleep(2); + st7565_is_data_mode = 1; + } + spiSend(&SPID1, length, data); +} + +#endif /* _GDISP_LLD_BOARD_H */ diff --git a/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/driver.mk b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/driver.mk new file mode 100644 index 0000000000..889a1a0317 --- /dev/null +++ b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/driver.mk @@ -0,0 +1,2 @@ +GFXINC += drivers/gdisp/st7565ergodox +GFXSRC += drivers/gdisp/st7565ergodox/gdisp_lld_ST7565.c diff --git a/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/gdisp_lld_ST7565.c b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/gdisp_lld_ST7565.c new file mode 100644 index 0000000000..c33aea81a8 --- /dev/null +++ b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/gdisp_lld_ST7565.c @@ -0,0 +1,292 @@ +/* + * 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 + */ + +#include "gfx.h" + +#if GFX_USE_GDISP + +#define GDISP_DRIVER_VMT GDISPVMT_ST7565_ERGODOX +#include "drivers/gdisp/st7565ergodox/gdisp_lld_config.h" +#include "src/gdisp/gdisp_driver.h" + +#include "board_ST7565.h" + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +#ifndef GDISP_SCREEN_HEIGHT + #define GDISP_SCREEN_HEIGHT 32 +#endif +#ifndef GDISP_SCREEN_WIDTH + #define GDISP_SCREEN_WIDTH 128 +#endif +#ifndef GDISP_INITIAL_CONTRAST + #define GDISP_INITIAL_CONTRAST 0 +#endif +#ifndef GDISP_INITIAL_BACKLIGHT + #define GDISP_INITIAL_BACKLIGHT 100 +#endif + +#define GDISP_FLG_NEEDFLUSH (GDISP_FLG_DRIVER<<0) + +#include "drivers/gdisp/st7565ergodox/st7565.h" + +/*===========================================================================*/ +/* Driver config defaults for backward compatibility. */ +/*===========================================================================*/ +#ifndef ST7565_LCD_BIAS + #define ST7565_LCD_BIAS ST7565_LCD_BIAS_7 +#endif +#ifndef ST7565_ADC + #define ST7565_ADC ST7565_ADC_NORMAL +#endif +#ifndef ST7565_COM_SCAN + #define ST7565_COM_SCAN ST7565_COM_SCAN_INC +#endif +#ifndef ST7565_PAGE_ORDER + #define ST7565_PAGE_ORDER 0,1,2,3 +#endif + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +typedef struct{ + bool_t buffer2; + uint8_t ram[GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH / 8]; +}PrivData; + +// Some common routines and macros +#define PRIV(g) ((PrivData*)g->priv) +#define RAM(g) (PRIV(g)->ram) +#define write_cmd2(g, cmd1, cmd2) { write_cmd(g, cmd1); write_cmd(g, cmd2); } +#define write_cmd3(g, cmd1, cmd2, cmd3) { write_cmd(g, cmd1); write_cmd(g, cmd2); write_cmd(g, cmd3); } + +// Some common routines and macros +#define delay(us) gfxSleepMicroseconds(us) +#define delay_ms(ms) gfxSleepMilliseconds(ms) + +#define xyaddr(x, y) ((x) + ((y)>>3)*GDISP_SCREEN_WIDTH) +#define xybit(y) (1<<((y)&7)) + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/* + * As this controller can't update on a pixel boundary we need to maintain the + * the entire display surface in memory so that we can do the necessary bit + * operations. Fortunately it is a small display in monochrome. + * 64 * 128 / 8 = 1024 bytes. + */ + +LLDSPEC bool_t gdisp_lld_init(GDisplay *g) { + // The private area is the display surface. + g->priv = gfxAlloc(sizeof(PrivData)); + PRIV(g)->buffer2 = false; + + // Initialise the board interface + init_board(g); + + // Hardware reset + setpin_reset(g, TRUE); + gfxSleepMilliseconds(20); + setpin_reset(g, FALSE); + gfxSleepMilliseconds(20); + + acquire_bus(g); + write_cmd(g, ST7565_DISPLAY_OFF); + write_cmd(g, ST7565_LCD_BIAS); + write_cmd(g, ST7565_ADC); + write_cmd(g, ST7565_COM_SCAN); + + write_cmd(g, ST7565_START_LINE | 0); + + write_cmd(g, ST7565_RESISTOR_RATIO | 0x6); + + // turn on voltage converter (VC=1, VR=0, VF=0) + write_cmd(g, ST7565_POWER_CONTROL | 0x04); + delay_ms(50); + + // turn on voltage regulator (VC=1, VR=1, VF=0) + write_cmd(g, ST7565_POWER_CONTROL | 0x06); + delay_ms(50); + + // turn on voltage follower (VC=1, VR=1, VF=1) + write_cmd(g, ST7565_POWER_CONTROL | 0x07); + delay_ms(50); + + write_cmd(g, 0xE2); + write_cmd(g, ST7565_COM_SCAN); + write_cmd2(g, ST7565_CONTRAST, GDISP_INITIAL_CONTRAST*64/101); + //write_cmd2(g, ST7565_CONTRAST, 0); + write_cmd(g, ST7565_DISPLAY_ON); + write_cmd(g, ST7565_ALLON_NORMAL); + write_cmd(g, ST7565_INVERT_DISPLAY); + + write_cmd(g, ST7565_RMW); + + // Finish Init + post_init_board(g); + + // Release the bus + release_bus(g); + + /* Initialise the GDISP structure */ + g->g.Width = GDISP_SCREEN_WIDTH; + g->g.Height = GDISP_SCREEN_HEIGHT; + g->g.Orientation = GDISP_ROTATE_0; + g->g.Powermode = powerOn; + g->g.Backlight = GDISP_INITIAL_BACKLIGHT; + g->g.Contrast = GDISP_INITIAL_CONTRAST; + return TRUE; +} + +#if GDISP_HARDWARE_FLUSH + LLDSPEC void gdisp_lld_flush(GDisplay *g) { + unsigned p; + + // Don't flush if we don't need it. + if (!(g->flags & GDISP_FLG_NEEDFLUSH)) + return; + + acquire_bus(g); + unsigned dstOffset = (PRIV(g)->buffer2 ? 4 : 0); + for (p = 0; p < 4; p++) { + write_cmd(g, ST7565_PAGE | (p + dstOffset)); + write_cmd(g, ST7565_COLUMN_MSB | 0); + write_cmd(g, ST7565_COLUMN_LSB | 0); + write_cmd(g, ST7565_RMW); + write_data(g, RAM(g) + (p*GDISP_SCREEN_WIDTH), GDISP_SCREEN_WIDTH); + } + unsigned line = (PRIV(g)->buffer2 ? 32 : 0); + write_cmd(g, ST7565_START_LINE | line); + PRIV(g)->buffer2 = !PRIV(g)->buffer2; + release_bus(g); + + g->flags &= ~GDISP_FLG_NEEDFLUSH; + } +#endif + +#if GDISP_HARDWARE_DRAWPIXEL + LLDSPEC void gdisp_lld_draw_pixel(GDisplay *g) { + coord_t x, y; + + switch(g->g.Orientation) { + default: + case GDISP_ROTATE_0: + x = g->p.x; + y = g->p.y; + break; + case GDISP_ROTATE_90: + x = g->p.y; + y = GDISP_SCREEN_HEIGHT-1 - g->p.x; + break; + case GDISP_ROTATE_180: + x = GDISP_SCREEN_WIDTH-1 - g->p.x; + y = GDISP_SCREEN_HEIGHT-1 - g->p.y; + break; + case GDISP_ROTATE_270: + x = GDISP_SCREEN_HEIGHT-1 - g->p.y; + y = g->p.x; + break; + } + if (gdispColor2Native(g->p.color) != Black) + RAM(g)[xyaddr(x, y)] |= xybit(y); + else + RAM(g)[xyaddr(x, y)] &= ~xybit(y); + g->flags |= GDISP_FLG_NEEDFLUSH; + } +#endif + +#if GDISP_HARDWARE_PIXELREAD + LLDSPEC color_t gdisp_lld_get_pixel_color(GDisplay *g) { + coord_t x, y; + + switch(g->g.Orientation) { + default: + case GDISP_ROTATE_0: + x = g->p.x; + y = g->p.y; + break; + case GDISP_ROTATE_90: + x = g->p.y; + y = GDISP_SCREEN_HEIGHT-1 - g->p.x; + break; + case GDISP_ROTATE_180: + x = GDISP_SCREEN_WIDTH-1 - g->p.x; + y = GDISP_SCREEN_HEIGHT-1 - g->p.y; + break; + case GDISP_ROTATE_270: + x = GDISP_SCREEN_HEIGHT-1 - g->p.y; + y = g->p.x; + break; + } + return (RAM(g)[xyaddr(x, y)] & xybit(y)) ? White : Black; + } +#endif + +#if GDISP_NEED_CONTROL && GDISP_HARDWARE_CONTROL + LLDSPEC void gdisp_lld_control(GDisplay *g) { + switch(g->p.x) { + case GDISP_CONTROL_POWER: + if (g->g.Powermode == (powermode_t)g->p.ptr) + return; + switch((powermode_t)g->p.ptr) { + case powerOff: + case powerSleep: + case powerDeepSleep: + acquire_bus(g); + write_cmd(g, ST7565_DISPLAY_OFF); + release_bus(g); + break; + case powerOn: + acquire_bus(g); + write_cmd(g, ST7565_DISPLAY_ON); + release_bus(g); + break; + default: + return; + } + g->g.Powermode = (powermode_t)g->p.ptr; + return; + + case GDISP_CONTROL_ORIENTATION: + if (g->g.Orientation == (orientation_t)g->p.ptr) + return; + switch((orientation_t)g->p.ptr) { + /* Rotation is handled by the drawing routines */ + case GDISP_ROTATE_0: + case GDISP_ROTATE_180: + g->g.Height = GDISP_SCREEN_HEIGHT; + g->g.Width = GDISP_SCREEN_WIDTH; + break; + case GDISP_ROTATE_90: + case GDISP_ROTATE_270: + g->g.Height = GDISP_SCREEN_WIDTH; + g->g.Width = GDISP_SCREEN_HEIGHT; + break; + default: + return; + } + g->g.Orientation = (orientation_t)g->p.ptr; + return; + + case GDISP_CONTROL_CONTRAST: + if ((unsigned)g->p.ptr > 100) + g->p.ptr = (void *)100; + acquire_bus(g); + write_cmd2(g, ST7565_CONTRAST, ((((unsigned)g->p.ptr)<<6)/101) & 0x3F); + release_bus(g); + g->g.Contrast = (unsigned)g->p.ptr; + return; + } + } +#endif // GDISP_NEED_CONTROL + +#endif // GFX_USE_GDISP diff --git a/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/gdisp_lld_config.h b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/gdisp_lld_config.h new file mode 100644 index 0000000000..48587b9e14 --- /dev/null +++ b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/gdisp_lld_config.h @@ -0,0 +1,26 @@ +/* + * 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_CONFIG_H +#define _GDISP_LLD_CONFIG_H + +#if GFX_USE_GDISP + +/*===========================================================================*/ +/* Driver hardware support. */ +/*===========================================================================*/ + +#define GDISP_HARDWARE_FLUSH TRUE // This controller requires flushing +#define GDISP_HARDWARE_DRAWPIXEL TRUE +#define GDISP_HARDWARE_PIXELREAD TRUE +#define GDISP_HARDWARE_CONTROL TRUE + +#define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_MONO + +#endif /* GFX_USE_GDISP */ + +#endif /* _GDISP_LLD_CONFIG_H */ diff --git a/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/st7565.h b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/st7565.h new file mode 100644 index 0000000000..48636b33d6 --- /dev/null +++ b/keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/st7565.h @@ -0,0 +1,37 @@ +/* + * 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 _ST7565_H +#define _ST7565_H + +#define ST7565_CONTRAST 0x81 +#define ST7565_ALLON_NORMAL 0xA4 +#define ST7565_ALLON 0xA5 +#define ST7565_POSITIVE_DISPLAY 0xA6 +#define ST7565_INVERT_DISPLAY 0xA7 +#define ST7565_DISPLAY_OFF 0xAE +#define ST7565_DISPLAY_ON 0xAF + +#define ST7565_LCD_BIAS_7 0xA3 +#define ST7565_LCD_BIAS_9 0xA2 + +#define ST7565_ADC_NORMAL 0xA0 +#define ST7565_ADC_REVERSE 0xA1 + +#define ST7565_COM_SCAN_INC 0xC0 +#define ST7565_COM_SCAN_DEC 0xC8 + +#define ST7565_START_LINE 0x40 +#define ST7565_PAGE 0xB0 +#define ST7565_COLUMN_MSB 0x10 +#define ST7565_COLUMN_LSB 0x00 +#define ST7565_RMW 0xE0 + +#define ST7565_RESISTOR_RATIO 0x20 +#define ST7565_POWER_CONTROL 0x28 + +#endif /* _ST7565_H */ |