keyboards/claw44/ssd1306.h

   1 #pragma once
   2
   3 #include <stdbool.h>
   4 #include <stdio.h>
   5 #include "pincontrol.h"
   6 #include "action.h"
   7
   8 enum ssd1306_cmds {
   9   DisplayOff = 0xAE,
  10   DisplayOn = 0xAF,
  11
  12   SetContrast = 0x81,
  13   DisplayAllOnResume = 0xA4,
  14
  15   DisplayAllOn = 0xA5,
  16   NormalDisplay = 0xA6,
  17   InvertDisplay = 0xA7,
  18   SetDisplayOffset = 0xD3,
  19   SetComPins = 0xda,
  20   SetVComDetect = 0xdb,
  21   SetDisplayClockDiv = 0xD5,
  22   SetPreCharge = 0xd9,
  23   SetMultiPlex = 0xa8,
  24   SetLowColumn = 0x00,
  25   SetHighColumn = 0x10,
  26   SetStartLine = 0x40,
  27
  28   SetMemoryMode = 0x20,
  29   ColumnAddr = 0x21,
  30   PageAddr = 0x22,
  31
  32   ComScanInc = 0xc0,
  33   ComScanDec = 0xc8,
  34   SegRemap = 0xa0,
  35   SetChargePump = 0x8d,
  36   ExternalVcc = 0x01,
  37   SwitchCapVcc = 0x02,
  38
  39   ActivateScroll = 0x2f,
  40   DeActivateScroll = 0x2e,
  41   SetVerticalScrollArea = 0xa3,
  42   RightHorizontalScroll = 0x26,
  43   LeftHorizontalScroll = 0x27,
  44   VerticalAndRightHorizontalScroll = 0x29,
  45   VerticalAndLeftHorizontalScroll = 0x2a,
  46 };
  47
  48 // Controls the SSD1306 128x32 OLED display via i2c
  49
  50 #ifndef SSD1306_ADDRESS
  51 #define SSD1306_ADDRESS 0x3C
  52 #endif
  53
  54 #define DisplayHeight 32
  55 #define DisplayWidth 128
  56
  57 #define FontHeight 8
  58 #define FontWidth 6
  59
  60 #define MatrixRows (DisplayHeight / FontHeight)
  61 #define MatrixCols (DisplayWidth / FontWidth)
  62
  63 struct CharacterMatrix {
  64   uint8_t display[MatrixRows][MatrixCols];
  65   uint8_t *cursor;
  66   bool dirty;
  67 };
  68
  69 struct CharacterMatrix display;
  70
  71 bool iota_gfx_init(bool rotate);
  72 void iota_gfx_task(void);
  73 bool iota_gfx_off(void);
  74 bool iota_gfx_on(void);
  75 void iota_gfx_flush(void);
  76 void iota_gfx_write_char(uint8_t c);
  77 void iota_gfx_write(const char *data);
  78 void iota_gfx_write_P(const char *data);
  79 void iota_gfx_clear_screen(void);
  80
  81 void iota_gfx_task_user(void);
  82
  83 void matrix_clear(struct CharacterMatrix *matrix);
  84 void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c);
  85 void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c);
  86 void matrix_write(struct CharacterMatrix *matrix, const char *data);
  87 void matrix_write_ln(struct CharacterMatrix *matrix, const char *data);
  88 void matrix_write_P(struct CharacterMatrix *matrix, const char *data);
  89 void matrix_render(struct CharacterMatrix *matrix);
  90
  91 bool process_record_gfx(uint16_t keycode, keyrecord_t *record);