From f37a134f712891db64b1391a250b0d752206f520 Mon Sep 17 00:00:00 2001 From: Drashna Jaelre Date: Thu, 17 Sep 2020 00:41:55 -0700 Subject: [Keyboard] Convert Corne Keyboard to Split Common (#6001) * [Keyboard] Convert Corne Keyboard to Split Common * Add VIA Support * Makes sure that ol(e)d and new OLED implementation can't coexist * Add licensing header to files * Add changes based on feedback from foostan * Fixes --- keyboards/crkbd/rev1/common/ssd1306.c | 360 ++++++++++++++++++++++++++++++++++ 1 file changed, 360 insertions(+) create mode 100644 keyboards/crkbd/rev1/common/ssd1306.c (limited to 'keyboards/crkbd/rev1/common/ssd1306.c') diff --git a/keyboards/crkbd/rev1/common/ssd1306.c b/keyboards/crkbd/rev1/common/ssd1306.c new file mode 100644 index 0000000000..4a889da673 --- /dev/null +++ b/keyboards/crkbd/rev1/common/ssd1306.c @@ -0,0 +1,360 @@ +#ifdef SSD1306OLED + +#include "ssd1306.h" +#include "i2c_master.h" +#include +#include "print.h" +#ifdef ADAFRUIT_BLE_ENABLE +#include "adafruit_ble.h" +#endif +#ifdef PROTOCOL_LUFA +#include "lufa.h" +#endif +#include "sendchar.h" +#include "timer.h" + +struct CharacterMatrix display; + +extern const unsigned char font[] PROGMEM; + +#ifndef OLED_BLANK_CHAR +#define OLED_BLANK_CHAR ' ' +#endif + +#ifndef OLED_BITS_FILTER +#define OLED_BITS_FILTER +#endif + +// Set this to 1 to help diagnose early startup problems +// when testing power-on with ble. Turn it off otherwise, +// as the latency of printing most of the debug info messes +// with the matrix scan, causing keys to drop. +#define DEBUG_TO_SCREEN 0 + +//static uint16_t last_battery_update; +//static uint32_t vbat; +//#define BatteryUpdateInterval 10000 /* milliseconds */ + +// 'last_flush' is declared as uint16_t, +// so this must be less than 65535 +#ifndef ScreenOffInterval +#define ScreenOffInterval 60000 /* milliseconds */ +#endif + +#if DEBUG_TO_SCREEN +static uint8_t displaying; +#endif +static uint16_t last_flush; + +static bool force_dirty = true; + +// Write command sequence. +// Returns true on success. +static inline bool _send_cmd1(uint8_t cmd) { + bool res = false; + + if (i2c_start(SSD1306_ADDRESS, 100)) { + xprintf("failed to start write to %d\n", SSD1306_ADDRESS); + goto done; + } + + if (i2c_write(0x0 /* command byte follows */, 100)) { + print("failed to write control byte\n"); + + goto done; + } + + if (i2c_write(cmd, 100)) { + xprintf("failed to write command %d\n", cmd); + goto done; + } + res = true; +done: + i2c_stop(); + return res; +} + +#define send_cmd1(c) if (!_send_cmd1(c)) {goto done;} +#define send_cmds(c) if (!_send_cmds(c,sizeof(c))) {goto done;} +#define cmd1(X) X +#define cmd2(X,Y) X,Y +#define cmd3(X,Y,Z) X,Y,Z + +static bool _send_cmds(const uint8_t* p,uint8_t sz) { + for(uint8_t i=sz;i;i--) { + send_cmd1( pgm_read_byte(p++) ); + } + return true; +done: + return false; +} + +#define SEND_CMDS(...) {static const uint8_t _cmds[] PROGMEM = { __VA_ARGS__,0 };send_cmds(_cmds);} + +static void clear_display(void) { + matrix_clear(&display); + + // Clear all of the display bits (there can be random noise + // in the RAM on startup) + SEND_CMDS( + cmd3(PageAddr, 0, (DisplayHeight / 8) - 1), + cmd3(ColumnAddr, 0, DisplayWidth - 1) + ); + + if (i2c_start(SSD1306_ADDRESS, 100)) { + goto done; + } + if (i2c_write(0x40, 100)) { + // Data mode + goto done; + } + for (uint8_t row = MatrixRows;row; row--) { + for (uint8_t col = DisplayWidth; col; col--) { + i2c_write(0, 100); + } + } + + display.dirty = false; + +done: + i2c_stop(); +} + +#if DEBUG_TO_SCREEN +#undef sendchar +static int8_t capture_sendchar(uint8_t c) { + sendchar(c); + iota_gfx_write_char(c); + + if (!displaying) { + iota_gfx_flush(); + } + return 0; +} +#endif + +bool iota_gfx_init(bool rotate) { + bool success = false; + + i2c_init(); + SEND_CMDS( + cmd1(DisplayOff), + cmd2(SetDisplayClockDiv, 0x80), + cmd2(SetMultiPlex, DisplayHeight - 1), + cmd2(SetDisplayOffset, 0), + cmd1(SetStartLine | 0x0), + cmd2(SetChargePump, 0x14 /* Enable */), + cmd2(SetMemoryMode, 0 /* horizontal addressing */) + ); + + if(rotate){ + // the following Flip the display orientation 180 degrees + SEND_CMDS( + cmd1(SegRemap), + cmd1(ComScanInc) + ); + }else{ + // Flips the display orientation 0 degrees + SEND_CMDS( + cmd1(SegRemap | 0x1), + cmd1(ComScanDec) + ); + } + + SEND_CMDS( +#ifdef SSD1306_128X64 + cmd2(SetComPins, 0x12), +#else + cmd2(SetComPins, 0x2), +#endif + cmd2(SetContrast, 0x8f), + cmd2(SetPreCharge, 0xf1), + cmd2(SetVComDetect, 0x40), + cmd1(DisplayAllOnResume), + cmd1(NormalDisplay), + cmd1(DeActivateScroll), + cmd1(DisplayOn), + + cmd2(SetContrast, 0) // Dim + ); + + clear_display(); + + success = true; + + iota_gfx_flush(); + +#if DEBUG_TO_SCREEN + print_set_sendchar(capture_sendchar); +#endif + +done: + return success; +} + +bool iota_gfx_off(void) { + bool success = false; + + send_cmd1(DisplayOff); + success = true; + +done: + return success; +} + +bool iota_gfx_on(void) { + bool success = false; + + send_cmd1(DisplayOn); + success = true; + +done: + return success; +} + +void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c) { + *matrix->cursor = c; + ++matrix->cursor; + + if (matrix->cursor - &matrix->display[0][0] == sizeof(matrix->display)) { + // We went off the end; scroll the display upwards by one line + memmove(&matrix->display[0], &matrix->display[1], + MatrixCols * (MatrixRows - 1)); + matrix->cursor = &matrix->display[MatrixRows - 1][0]; + memset(matrix->cursor, OLED_BLANK_CHAR, MatrixCols); + } +} + +void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c) { + matrix->dirty = true; + + if (c == '\n') { + // Clear to end of line from the cursor and then move to the + // start of the next line + uint8_t cursor_col = (matrix->cursor - &matrix->display[0][0]) % MatrixCols; + + while (cursor_col++ < MatrixCols) { + matrix_write_char_inner(matrix, OLED_BLANK_CHAR); + } + return; + } + + matrix_write_char_inner(matrix, c); +} + +void iota_gfx_write_char(uint8_t c) { + matrix_write_char(&display, c); +} + +void matrix_write(struct CharacterMatrix *matrix, const char *data) { + while (*data) { + matrix_write_char(matrix, *data); + ++data; + } +} + +void matrix_write_ln(struct CharacterMatrix *matrix, const char *data) { + matrix_write(matrix, data); + matrix_write(matrix, "\n"); +} + +void iota_gfx_write(const char *data) { + matrix_write(&display, data); +} + +void matrix_write_P(struct CharacterMatrix *matrix, const char *data) { + while (true) { + uint8_t c = pgm_read_byte(data); + if (c == 0) { + return; + } + matrix_write_char(matrix, c); + ++data; + } +} + +void iota_gfx_write_P(const char *data) { + matrix_write_P(&display, data); +} + +void matrix_clear(struct CharacterMatrix *matrix) { + memset(matrix->display, OLED_BLANK_CHAR, sizeof(matrix->display)); + matrix->cursor = &matrix->display[0][0]; + matrix->dirty = true; +} + +void iota_gfx_clear_screen(void) { + matrix_clear(&display); +} + +void matrix_render(struct CharacterMatrix *matrix) { + last_flush = timer_read(); + iota_gfx_on(); +#if DEBUG_TO_SCREEN + ++displaying; +#endif + + // Move to the home position + SEND_CMDS( + cmd3(PageAddr, 0, MatrixRows - 1), + cmd3(ColumnAddr, 0, (MatrixCols * FontWidth) - 1) + ); + + if (i2c_write(SSD1306_ADDRESS, 100)) { + goto done; + } + if (i2c_write(0x40, 100)) { + // Data mode + goto done; + } + + for (uint8_t row = 0; row < MatrixRows; ++row) { + for (uint8_t col = 0; col < MatrixCols; ++col) { + const uint8_t *glyph = font + (matrix->display[row][col] * FontWidth); + + for (uint8_t glyphCol = 0; glyphCol < FontWidth; ++glyphCol) { + uint8_t colBits = pgm_read_byte(glyph + glyphCol); + i2c_write(colBits OLED_BITS_FILTER, 100); + } + + // 1 column of space between chars (it's not included in the glyph) + //i2c_master_write(0); + } + } + + matrix->dirty = false; + +done: + i2c_stop(); +#if DEBUG_TO_SCREEN + --displaying; +#endif +} + +void iota_gfx_flush(void) { + matrix_render(&display); +} + +__attribute__ ((weak)) +void iota_gfx_task_user(void) { +} + +void iota_gfx_task(void) { + iota_gfx_task_user(); + + if (display.dirty|| force_dirty) { + iota_gfx_flush(); + force_dirty = false; + } + + if (ScreenOffInterval !=0 && timer_elapsed(last_flush) > ScreenOffInterval) { + iota_gfx_off(); + } +} + +bool process_record_gfx(uint16_t keycode, keyrecord_t *record) { + force_dirty = true; + return true; +} + +#endif -- cgit v1.2.3