qmk

QMK Firmware
git clone git://git.z3bra.org/qmk.git
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ssd1306.h (2212B)


      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);