mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-05 09:25:13 +00:00
344 lines
7.3 KiB
C
344 lines
7.3 KiB
C
#ifdef SSD1306OLED
|
|
|
|
#include "ssd1306.h"
|
|
#include "i2c.h"
|
|
#include <string.h>
|
|
#include "print.h"
|
|
#ifdef PROTOCOL_LUFA
|
|
#include "lufa.h"
|
|
#endif
|
|
#include "sendchar.h"
|
|
#include "timer.h"
|
|
|
|
struct CharacterMatrix display;
|
|
|
|
extern const unsigned char font[] PROGMEM;
|
|
|
|
// 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
|
|
#define ScreenOffInterval 60000 /* milliseconds */
|
|
#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_write(SSD1306_ADDRESS)) {
|
|
xprintf("failed to start write to %d\n", SSD1306_ADDRESS);
|
|
goto done;
|
|
}
|
|
|
|
if (i2c_master_write(0x0 /* command byte follows */)) {
|
|
print("failed to write control byte\n");
|
|
|
|
goto done;
|
|
}
|
|
|
|
if (i2c_master_write(cmd)) {
|
|
xprintf("failed to write command %d\n", cmd);
|
|
goto done;
|
|
}
|
|
res = true;
|
|
done:
|
|
i2c_master_stop();
|
|
return res;
|
|
}
|
|
|
|
// Write 2-byte command sequence.
|
|
// Returns true on success
|
|
static inline bool _send_cmd2(uint8_t cmd, uint8_t opr) {
|
|
if (!_send_cmd1(cmd)) {
|
|
return false;
|
|
}
|
|
return _send_cmd1(opr);
|
|
}
|
|
|
|
// Write 3-byte command sequence.
|
|
// Returns true on success
|
|
static inline bool _send_cmd3(uint8_t cmd, uint8_t opr1, uint8_t opr2) {
|
|
if (!_send_cmd1(cmd)) {
|
|
return false;
|
|
}
|
|
if (!_send_cmd1(opr1)) {
|
|
return false;
|
|
}
|
|
return _send_cmd1(opr2);
|
|
}
|
|
|
|
#define send_cmd1(c) if (!_send_cmd1(c)) {goto done;}
|
|
#define send_cmd2(c,o) if (!_send_cmd2(c,o)) {goto done;}
|
|
#define send_cmd3(c,o1,o2) if (!_send_cmd3(c,o1,o2)) {goto done;}
|
|
|
|
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_cmd3(PageAddr, 0, (DisplayHeight / 8) - 1);
|
|
send_cmd3(ColumnAddr, 0, DisplayWidth - 1);
|
|
|
|
if (i2c_start_write(SSD1306_ADDRESS)) {
|
|
goto done;
|
|
}
|
|
if (i2c_master_write(0x40)) {
|
|
// Data mode
|
|
goto done;
|
|
}
|
|
for (uint8_t row = 0; row < MatrixRows; ++row) {
|
|
for (uint8_t col = 0; col < DisplayWidth; ++col) {
|
|
i2c_master_write(0);
|
|
}
|
|
}
|
|
|
|
display.dirty = false;
|
|
|
|
done:
|
|
i2c_master_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_master_init();
|
|
send_cmd1(DisplayOff);
|
|
send_cmd2(SetDisplayClockDiv, 0x80);
|
|
send_cmd2(SetMultiPlex, DisplayHeight - 1);
|
|
|
|
send_cmd2(SetDisplayOffset, 0);
|
|
|
|
|
|
send_cmd1(SetStartLine | 0x0);
|
|
send_cmd2(SetChargePump, 0x14 /* Enable */);
|
|
send_cmd2(SetMemoryMode, 0 /* horizontal addressing */);
|
|
|
|
if(rotate){
|
|
// the following Flip the display orientation 180 degrees
|
|
send_cmd1(SegRemap);
|
|
send_cmd1(ComScanInc);
|
|
}else{
|
|
// Flips the display orientation 0 degrees
|
|
send_cmd1(SegRemap | 0x1);
|
|
send_cmd1(ComScanDec);
|
|
}
|
|
|
|
send_cmd2(SetComPins, 0x2);
|
|
send_cmd2(SetContrast, 0x8f);
|
|
send_cmd2(SetPreCharge, 0xf1);
|
|
send_cmd2(SetVComDetect, 0x40);
|
|
send_cmd1(DisplayAllOnResume);
|
|
send_cmd1(NormalDisplay);
|
|
send_cmd1(DeActivateScroll);
|
|
send_cmd1(DisplayOn);
|
|
|
|
send_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, ' ', 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, ' ');
|
|
}
|
|
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) {
|
|
const char *end = data + strlen(data);
|
|
while (data < end) {
|
|
matrix_write_char(matrix, *data);
|
|
++data;
|
|
}
|
|
}
|
|
|
|
void matrix_write_ln(struct CharacterMatrix *matrix, const char *data) {
|
|
char data_ln[strlen(data)+2];
|
|
snprintf(data_ln, sizeof(data_ln), "%s\n", data);
|
|
matrix_write(matrix, data_ln);
|
|
}
|
|
|
|
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, ' ', 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_cmd3(PageAddr, 0, MatrixRows - 1);
|
|
send_cmd3(ColumnAddr, 0, (MatrixCols * FontWidth) - 1);
|
|
|
|
if (i2c_start_write(SSD1306_ADDRESS)) {
|
|
goto done;
|
|
}
|
|
if (i2c_master_write(0x40)) {
|
|
// 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_master_write(colBits);
|
|
}
|
|
|
|
// 1 column of space between chars (it's not included in the glyph)
|
|
//i2c_master_write(0);
|
|
}
|
|
}
|
|
|
|
matrix->dirty = false;
|
|
|
|
done:
|
|
i2c_master_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 (timer_elapsed(last_flush) > ScreenOffInterval) {
|
|
iota_gfx_off();
|
|
}
|
|
}
|
|
|
|
bool process_record_gfx(uint16_t keycode, keyrecord_t *record) {
|
|
force_dirty = true;
|
|
return true;
|
|
}
|
|
|
|
#endif
|