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oled.h (2427B)

      1 /*
      2   MNT Reform 2.0 Keyboard Firmware
      3   See keyboard.c for Copyright
      4   SPDX-License-Identifier: MIT
      5 */
      6 
      7 #ifndef _OLED_H_
      8 #define _OLED_H_
      9 
     10 #include <stdbool.h>
     11 #include <stdint.h>
     12 
     13 enum ssd1306_cmds {
     14   DisplayOff = 0xAE,
     15   DisplayOn = 0xAF,
     16 
     17   SetContrast = 0x81,
     18   DisplayAllOnResume = 0xA4,
     19 
     20   DisplayAllOn = 0xA5,
     21   NormalDisplay = 0xA6,
     22   InvertDisplay = 0xA7,
     23   SetDisplayOffset = 0xD3,
     24   SetComPins = 0xda,
     25   SetVComDetect = 0xdb,
     26   SetDisplayClockDiv = 0xD5,
     27   SetPreCharge = 0xd9,
     28   SetMultiPlex = 0xa8,
     29   SetLowColumn = 0x00,
     30   SetHighColumn = 0x10,
     31   SetStartLine = 0x40,
     32 
     33   SetMemoryMode = 0x20,
     34   ColumnAddr = 0x21,
     35   PageAddr = 0x22,
     36 
     37   ComScanInc = 0xc0,
     38   ComScanDec = 0xc8,
     39   SegRemap = 0xa0,
     40   SetChargePump = 0x8d,
     41   ExternalVcc = 0x01,
     42   SwitchCapVcc = 0x02,
     43 
     44   ActivateScroll = 0x2f,
     45   DeActivateScroll = 0x2e,
     46   SetVerticalScrollArea = 0xa3,
     47   RightHorizontalScroll = 0x26,
     48   LeftHorizontalScroll = 0x27,
     49   VerticalAndRightHorizontalScroll = 0x29,
     50   VerticalAndLeftHorizontalScroll = 0x2a,
     51 };
     52 
     53 #define SSD1306_ADDRESS 0x3C
     54 
     55 #define DisplayHeight 32
     56 #define DisplayWidth 128
     57 
     58 #define FontHeight 8
     59 #define FontWidth 6
     60 
     61 #define MatrixRows (DisplayHeight / FontHeight)
     62 #define MatrixCols (DisplayWidth / FontWidth)
     63 
     64 struct CharacterMatrix {
     65   uint8_t display[MatrixRows][MatrixCols];
     66   uint8_t invert[MatrixRows][MatrixCols];
     67   uint8_t *cursor;
     68   bool dirty;
     69 };
     70 
     71 void gfx_poke(uint8_t x, uint8_t y, uint8_t c);
     72 void gfx_poke_str(uint8_t x, uint8_t y, char* str);
     73 void gfx_clear_invert(void);
     74 void gfx_invert_row(uint8_t y);
     75 bool gfx_init(bool rotate);
     76 void gfx_task(void);
     77 bool gfx_off(void);
     78 bool gfx_on(void);
     79 void gfx_flush(void);
     80 void gfx_clear(void);
     81 void gfx_write_char(uint8_t c);
     82 void gfx_write(const char *data);
     83 void gfx_write_P(const char *data);
     84 void gfx_clear_screen(void);
     85 void gfx_contrast(int c);
     86 
     87 void matrix_clear(struct CharacterMatrix *matrix);
     88 void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c);
     89 void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c);
     90 void matrix_write(struct CharacterMatrix *matrix, const char *data);
     91 void matrix_write_ln(struct CharacterMatrix *matrix, const char *data);
     92 void matrix_write_P(struct CharacterMatrix *matrix, const char *data);
     93 void matrix_render(struct CharacterMatrix *matrix);
     94 void matrix_render_direct(uint8_t* bitmap);
     95 
     96 void oled_clear(void);
     97 void oled_brightness_inc(void);
     98 void oled_brightness_dec(void);
     99 
    100 #endif