Add Infinity Ergodox display drivers

keyboards/infinity_ergodox/drivers/gdisp/IS31FL3731C/board_IS31FL3731C.h

@@ -0,0 +1,113 @@
+/*
+Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _GDISP_LLD_BOARD_H
+#define _GDISP_LLD_BOARD_H
+
+static const I2CConfig i2ccfg = {
+  400000 // clock speed (Hz); 400kHz max for IS31
+};
+
+#define GDISP_SCREEN_WIDTH  7
+#define GDISP_SCREEN_HEIGHT 7
+
+static const uint8_t led_mask[] = {
+	0xFF, 0x00, /* C1-1 -> C1-16 */
+	0xFF, 0x00, /* C2-1 -> C2-16 */
+	0xFF, 0x00, /* C3-1 -> C3-16 */
+	0xFF, 0x00, /* C4-1 -> C4-16 */
+	0x3F, 0x00, /* C5-1 -> C5-16 */
+	0x00, 0x00, /* C6-1 -> C6-16 */
+	0x00, 0x00, /* C7-1 -> C7-16 */
+	0x00, 0x00, /* C8-1 -> C8-16 */
+	0x00, 0x00, /* C9-1 -> C9-16 */
+};
+
+// The address of the LED
+#define LA(c, r) (c + r * 16 )
+// Need to be an address that is not mapped, but inside the range of the controller matrix
+#define NA LA(8, 8)
+
+// The numbers in the comments are the led numbers DXX on the PCB
+// The mapping is taken from the schematic of left hand side
+static const uint8_t led_mapping[GDISP_SCREEN_HEIGHT][GDISP_SCREEN_WIDTH] = {
+//   45        44        43        42        41        40        39
+   { LA(1, 1), LA(1, 0), LA(0, 4), LA(0, 3), LA(0, 2), LA(0, 1), LA(0, 0)},
+//   52        51        50        49        48        47        46
+   { LA(2, 3), LA(2, 2), LA(2, 1), LA(2, 0), LA(1, 4), LA(1, 3), LA(1, 2) },
+//   58        57        56        55        54        53        N/A
+   { LA(3, 4), LA(3, 3), LA(3, 2), LA(3, 1), LA(3, 0), LA(2, 4), NA },
+//   67        66        65        64        63        62        61
+   { LA(5, 3), LA(5, 2), LA(5, 1), LA(5, 0), LA(4, 4), LA(4, 3), LA(4, 2) },
+//   76        75        74        73        72        60        59
+   { LA(7, 3), LA(7, 2), LA(7, 1), LA(7, 0), LA(6, 3), LA(4, 1), LA(4, 0) },
+//   N/A       N/A       N/A       N/A       N/A       N/A       68
+   { NA,       NA,       NA,       NA,       NA,       NA,       LA(5, 4) },
+//   N/A       N/A       N/A       N/A       71        70        69
+   { NA,       NA,       NA,       NA,       LA(6, 2), LA(6, 1), LA(6, 0) },
+};
+
+
+#define IS31_ADDR_DEFAULT 0x74 // AD connected to GND
+#define IS31_TIMEOUT 5000
+
+static GFXINLINE void init_board(GDisplay *g) {
+    (void) g;
+    /* I2C pins */
+    palSetPadMode(GPIOB, 0, PAL_MODE_ALTERNATIVE_2); // PTB0/I2C0/SCL
+    palSetPadMode(GPIOB, 1, PAL_MODE_ALTERNATIVE_2); // PTB1/I2C0/SDA
+    palSetPadMode(GPIOB, 16, PAL_MODE_OUTPUT_PUSHPULL);
+    palClearPad(GPIOB, 16);
+    /* start I2C */
+    i2cStart(&I2CD1, &i2ccfg);
+    // try high drive (from kiibohd)
+    I2CD1.i2c->C2 |= I2Cx_C2_HDRS;
+    // try glitch fixing (from kiibohd)
+    I2CD1.i2c->FLT = 4;
+}
+
+static GFXINLINE void post_init_board(GDisplay *g) {
+	(void) g;
+}
+
+static GFXINLINE const uint8_t* get_led_mask(GDisplay* g) {
+    (void) g;
+    return led_mask;
+}
+
+static GFXINLINE uint8_t get_led_address(GDisplay* g, uint16_t x, uint16_t y)
+{
+    (void) g;
+    return led_mapping[y][x];
+}
+
+static GFXINLINE void set_hardware_shutdown(GDisplay* g, bool shutdown) {
+    (void) g;
+    if(!shutdown) {
+        palSetPad(GPIOB, 16);
+    }
+    else {
+        palClearPad(GPIOB, 16);
+    }
+}
+
+static GFXINLINE void write_data(GDisplay *g, uint8_t* data, uint16_t length) {
+	(void) g;
+	i2cMasterTransmitTimeout(&I2CD1, IS31_ADDR_DEFAULT, data, length, 0, 0, US2ST(IS31_TIMEOUT));
+}
+
+#endif /* _GDISP_LLD_BOARD_H */

keyboards/infinity_ergodox/drivers/gdisp/IS31FL3731C/driver.mk

@@ -0,0 +1,2 @@
+GFXINC += drivers/gdisp/IS31FL3731C
+GFXSRC += drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c

keyboards/infinity_ergodox/drivers/gdisp/IS31FL3731C/gdisp_IS31FL3731C.c

@@ -0,0 +1,333 @@
+/*
+Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "gfx.h"
+
+#if GFX_USE_GDISP
+
+#define GDISP_DRIVER_VMT			GDISPVMT_IS31FL3731C_ERGODOX
+#include "drivers/gdisp/IS31FL3731C/gdisp_lld_config.h"
+#include "src/gdisp/gdisp_driver.h"
+
+#include "board_IS31FL3731C.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+#ifndef GDISP_SCREEN_HEIGHT
+	#define GDISP_SCREEN_HEIGHT		9
+#endif
+#ifndef GDISP_SCREEN_WIDTH
+	#define GDISP_SCREEN_WIDTH		16
+#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)
+
+#define IS31_ADDR_DEFAULT 0x74
+
+#define IS31_REG_CONFIG  0x00
+// bits in reg
+#define IS31_REG_CONFIG_PICTUREMODE 0x00
+#define IS31_REG_CONFIG_AUTOPLAYMODE 0x08
+#define IS31_REG_CONFIG_AUDIOPLAYMODE 0x18
+// D2:D0 bits are starting frame for autoplay mode
+
+#define IS31_REG_PICTDISP 0x01 // D2:D0 frame select for picture mode
+
+#define IS31_REG_AUTOPLAYCTRL1 0x02
+// D6:D4 number of loops (000=infty)
+// D2:D0 number of frames to be used
+
+#define IS31_REG_AUTOPLAYCTRL2 0x03 // D5:D0 delay time (*11ms)
+
+#define IS31_REG_DISPLAYOPT 0x05
+#define IS31_REG_DISPLAYOPT_INTENSITY_SAME 0x20 // same intensity for all frames
+#define IS31_REG_DISPLAYOPT_BLINK_ENABLE 0x8
+// D2:D0 bits blink period time (*0.27s)
+
+#define IS31_REG_AUDIOSYNC 0x06
+#define IS31_REG_AUDIOSYNC_ENABLE 0x1
+
+#define IS31_REG_FRAMESTATE 0x07
+
+#define IS31_REG_BREATHCTRL1 0x08
+// D6:D4 fade out time (26ms*2^i)
+// D2:D0 fade in time (26ms*2^i)
+
+#define IS31_REG_BREATHCTRL2 0x09
+#define IS31_REG_BREATHCTRL2_ENABLE 0x10
+// D2:D0 extinguish time (3.5ms*2^i)
+
+#define IS31_REG_SHUTDOWN 0x0A
+#define IS31_REG_SHUTDOWN_OFF 0x0
+#define IS31_REG_SHUTDOWN_ON 0x1
+
+#define IS31_REG_AGCCTRL 0x0B
+#define IS31_REG_ADCRATE 0x0C
+
+#define IS31_COMMANDREGISTER 0xFD
+#define IS31_FUNCTIONREG 0x0B    // helpfully called 'page nine'
+#define IS31_FUNCTIONREG_SIZE 0xD
+
+#define IS31_FRAME_SIZE 0xB4
+
+#define IS31_PWM_REG 0x24
+#define IS31_PWM_SIZE 0x90
+
+#define IS31_LED_MASK_SIZE 0x12
+#define IS31_SCREEN_WIDTH 16
+
+#define IS31
+
+//Generated by http://jared.geek.nz/2013/feb/linear-led-pwm
+const unsigned char cie[256] = {
+    0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
+    1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
+    2, 2, 2, 3, 3, 3, 3, 3, 3, 3,
+    3, 4, 4, 4, 4, 4, 4, 5, 5, 5,
+    5, 5, 6, 6, 6, 6, 6, 7, 7, 7,
+    7, 8, 8, 8, 8, 9, 9, 9, 10, 10,
+    10, 10, 11, 11, 11, 12, 12, 12, 13, 13,
+    13, 14, 14, 15, 15, 15, 16, 16, 17, 17,
+    17, 18, 18, 19, 19, 20, 20, 21, 21, 22,
+    22, 23, 23, 24, 24, 25, 25, 26, 26, 27,
+    28, 28, 29, 29, 30, 31, 31, 32, 32, 33,
+    34, 34, 35, 36, 37, 37, 38, 39, 39, 40,
+    41, 42, 43, 43, 44, 45, 46, 47, 47, 48,
+    49, 50, 51, 52, 53, 54, 54, 55, 56, 57,
+    58, 59, 60, 61, 62, 63, 64, 65, 66, 67,
+    68, 70, 71, 72, 73, 74, 75, 76, 77, 79,
+    80, 81, 82, 83, 85, 86, 87, 88, 90, 91,
+    92, 94, 95, 96, 98, 99, 100, 102, 103, 105,
+    106, 108, 109, 110, 112, 113, 115, 116, 118, 120,
+    121, 123, 124, 126, 128, 129, 131, 132, 134, 136,
+    138, 139, 141, 143, 145, 146, 148, 150, 152, 154,
+    155, 157, 159, 161, 163, 165, 167, 169, 171, 173,
+    175, 177, 179, 181, 183, 185, 187, 189, 191, 193,
+    196, 198, 200, 202, 204, 207, 209, 211, 214, 216,
+    218, 220, 223, 225, 228, 230, 232, 235, 237, 240,
+    242, 245, 247, 250, 252, 255,
+};
+
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+typedef struct{
+    uint8_t write_buffer_offset;
+    uint8_t write_buffer[IS31_FRAME_SIZE];
+    uint8_t frame_buffer[GDISP_SCREEN_HEIGHT * GDISP_SCREEN_WIDTH];
+    uint8_t page;
+}__attribute__((__packed__)) PrivData;
+
+// Some common routines and macros
+#define PRIV(g)                         ((PrivData*)g->priv)
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+static GFXINLINE void write_page(GDisplay* g, uint8_t page) {
+    uint8_t tx[2] __attribute__((aligned(2)));
+    tx[0] = IS31_COMMANDREGISTER;
+    tx[1] = page;
+    write_data(g, tx, 2);
+}
+
+static GFXINLINE void write_register(GDisplay* g, uint8_t page, uint8_t reg, uint8_t data) {
+    uint8_t tx[2] __attribute__((aligned(2)));
+    tx[0] = reg;
+    tx[1] = data;
+    write_page(g, page);
+    write_data(g, tx, 2);
+}
+
+static GFXINLINE void write_ram(GDisplay *g, uint8_t page, uint16_t offset, uint16_t length) {
+    PRIV(g)->write_buffer_offset = offset;
+    write_page(g, page);
+    write_data(g, (uint8_t*)PRIV(g), length + 1);
+}
+
+LLDSPEC bool_t gdisp_lld_init(GDisplay *g) {
+	// The private area is the display surface.
+	g->priv = gfxAlloc(sizeof(PrivData));
+    __builtin_memset(PRIV(g), 0, sizeof(PrivData));
+	PRIV(g)->page = 0;
+
+	// Initialise the board interface
+	init_board(g);
+	gfxSleepMilliseconds(10);
+
+    // zero function page, all registers (assuming full_page is all zeroes)
+    write_ram(g, IS31_FUNCTIONREG, 0, IS31_FUNCTIONREG_SIZE);
+    set_hardware_shutdown(g, false);
+    gfxSleepMilliseconds(10);
+    // software shutdown
+    write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
+    gfxSleepMilliseconds(10);
+    // zero function page, all registers
+    write_ram(g, IS31_FUNCTIONREG, 0, IS31_FUNCTIONREG_SIZE);
+    gfxSleepMilliseconds(10);
+
+
+    // zero all LED registers on all 8 pages, and enable the mask
+    __builtin_memcpy(PRIV(g)->write_buffer, get_led_mask(g), IS31_LED_MASK_SIZE);
+    for(uint8_t i=0; i<8; i++) {
+        write_ram(g, i, 0, IS31_FRAME_SIZE);
+        gfxSleepMilliseconds(1);
+    }
+
+    // software shutdown disable (i.e. turn stuff on)
+    write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
+    gfxSleepMilliseconds(10);
+
+    // Finish Init
+    post_init_board(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) {
+		// Don't flush if we don't need it.
+		if (!(g->flags & GDISP_FLG_NEEDFLUSH))
+			return;
+
+		PRIV(g)->page++;
+		PRIV(g)->page %= 2;
+		// TODO: some smarter algorithm for this
+		// We should run only one physical page at a time
+		// This way we don't need to send so much data, and
+		// we could use slightly less memory
+		uint8_t* src = PRIV(g)->frame_buffer;
+		for (int y=0;y<GDISP_SCREEN_HEIGHT;y++) {
+		    for (int x=0;x<GDISP_SCREEN_WIDTH;x++) {
+		        PRIV(g)->write_buffer[get_led_address(g, x, y)]=cie[*src];
+		        ++src;
+		    }
+		}
+        write_ram(g, PRIV(g)->page, IS31_PWM_REG, IS31_PWM_SIZE);
+        gfxSleepMilliseconds(1);
+        write_register(g, IS31_FUNCTIONREG, IS31_REG_PICTDISP, PRIV(g)->page);
+
+		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_180:
+			x = GDISP_SCREEN_WIDTH-1 - g->p.x;
+			y = g->p.y;
+			break;
+		}
+		PRIV(g)->frame_buffer[y * GDISP_SCREEN_WIDTH + x] = gdispColor2Native(g->p.color);
+		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_180:
+			x = GDISP_SCREEN_WIDTH-1 - g->p.x;
+			y = g->p.y;
+			break;
+		}
+		return gdispNative2Color(PRIV(g)->frame_buffer[y * GDISP_SCREEN_WIDTH + x]);
+	}
+#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:
+                write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
+				break;
+			case powerOn:
+                write_register(g, IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
+				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:
+			return;
+		}
+	}
+#endif // GDISP_NEED_CONTROL
+
+#endif // GFX_USE_GDISP

keyboards/infinity_ergodox/drivers/gdisp/IS31FL3731C/gdisp_lld_config.h

@@ -0,0 +1,36 @@
+/*
+Copyright 2016 Fred Sundvik <fsundvik@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#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_GRAY256
+
+#endif	/* GFX_USE_GDISP */
+
+#endif	/* _GDISP_LLD_CONFIG_H */

keyboards/infinity_ergodox/drivers/gdisp/emulator_lcd/driver.mk

@@ -0,0 +1,2 @@
+GFXINC += drivers/gdisp/emulator_lcd
+GFXSRC += drivers/gdisp/emulator_lcd/emulator_lcd.c

keyboards/infinity_ergodox/drivers/gdisp/emulator_lcd/emulator_lcd.c

@@ -0,0 +1,10 @@
+#define GDISP_DRIVER_VMT		    	GDISPVMT_EMULATOR_LCD_ERGODOX
+#define GDISP_HARDWARE_DRAWPIXEL		TRUE
+#define GDISP_HARDWARE_PIXELREAD		TRUE
+#define GDISP_HARDWARE_CONTROL			TRUE
+#define GDISP_LLD_PIXELFORMAT			GDISP_PIXELFORMAT_MONO
+#define GDISP_SCREEN_WIDTH		        128
+#define GDISP_SCREEN_HEIGHT		        32
+#define ROTATE_180_IS_FLIP
+
+#include "emulator/emulator_driver_impl.h"

keyboards/infinity_ergodox/drivers/gdisp/emulator_led/driver.mk

@@ -0,0 +1,2 @@
+GFXINC += drivers/gdisp/emulator_led
+GFXSRC += drivers/gdisp/emulator_led/emulator_led.c

keyboards/infinity_ergodox/drivers/gdisp/emulator_led/emulator_led.c

@@ -0,0 +1,10 @@
+#define GDISP_DRIVER_VMT			    GDISPVMT_EMULATOR_LED_ERGODOX
+#define GDISP_HARDWARE_DRAWPIXEL		TRUE
+#define GDISP_HARDWARE_PIXELREAD		TRUE
+#define GDISP_HARDWARE_CONTROL			TRUE
+#define GDISP_LLD_PIXELFORMAT			GDISP_PIXELFORMAT_MONO
+#define GDISP_SCREEN_WIDTH		        7
+#define GDISP_SCREEN_HEIGHT		        7
+#define ROTATE_180_IS_FLIP
+
+#include "emulator/emulator_driver_impl.h"

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 */

keyboards/infinity_ergodox/drivers/gdisp/st7565ergodox/driver.mk

@@ -0,0 +1,2 @@
+GFXINC += drivers/gdisp/st7565ergodox
+GFXSRC += drivers/gdisp/st7565ergodox/gdisp_lld_ST7565.c

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

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 */

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 */