From 98d5c77521961fa19d0ff81e941e78997d96dfb0 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Sun, 31 Jul 2022 22:15:01 +0100
Subject: Remove legacy AVR ssd1306 driver (#17864)
---
platforms/avr/drivers/ssd1306.c | 329 ----------------------------------------
platforms/avr/drivers/ssd1306.h | 87 -----------
2 files changed, 416 deletions(-)
delete mode 100644 platforms/avr/drivers/ssd1306.c
delete mode 100644 platforms/avr/drivers/ssd1306.h
(limited to 'platforms/avr')
diff --git a/platforms/avr/drivers/ssd1306.c b/platforms/avr/drivers/ssd1306.c
deleted file mode 100644
index 7afbc09f00..0000000000
--- a/platforms/avr/drivers/ssd1306.c
+++ /dev/null
@@ -1,329 +0,0 @@
-#ifdef SSD1306OLED
-
-# include "ssd1306.h"
-# include "i2c.h"
-# include <string.h>
-# include "print.h"
-# include "glcdfont.c"
-# ifdef PROTOCOL_LUFA
-# include "lufa.h"
-# endif
-# include "sendchar.h"
-# include "timer.h"
-
-struct CharacterMatrix display;
-
-// 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 */
-# define ScreenOffInterval 300000 /* milliseconds */
-# if DEBUG_TO_SCREEN
-static uint8_t displaying;
-# endif
-static uint16_t last_flush;
-
-// 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(void) {
- bool success = false;
-
- 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 */);
-
-# ifdef OLED_ROTATE180
- // the following Flip the display orientation 180 degrees
- send_cmd1(SegRemap);
- send_cmd1(ComScanInc);
-# endif
-# ifndef OLED_ROTATE180
- // Flips the display orientation 0 degrees
- send_cmd1(SegRemap | 0x1);
- send_cmd1(ComScanDec);
-# endif
-
- 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 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 - 1));
-
- for (uint8_t glyphCol = 0; glyphCol < FontWidth - 1; ++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) {
- iota_gfx_flush();
- }
-
- if (timer_elapsed(last_flush) > ScreenOffInterval) {
- iota_gfx_off();
- }
-}
-#endif
diff --git a/platforms/avr/drivers/ssd1306.h b/platforms/avr/drivers/ssd1306.h
deleted file mode 100644
index 6eecdcfaa4..0000000000
--- a/platforms/avr/drivers/ssd1306.h
+++ /dev/null
@@ -1,87 +0,0 @@
-#pragma once
-
-#include <stdbool.h>
-#include <stdio.h>
-#include "config.h"
-
-enum ssd1306_cmds {
- DisplayOff = 0xAE,
- DisplayOn = 0xAF,
-
- SetContrast = 0x81,
- DisplayAllOnResume = 0xA4,
-
- DisplayAllOn = 0xA5,
- NormalDisplay = 0xA6,
- InvertDisplay = 0xA7,
- SetDisplayOffset = 0xD3,
- SetComPins = 0xda,
- SetVComDetect = 0xdb,
- SetDisplayClockDiv = 0xD5,
- SetPreCharge = 0xd9,
- SetMultiPlex = 0xa8,
- SetLowColumn = 0x00,
- SetHighColumn = 0x10,
- SetStartLine = 0x40,
-
- SetMemoryMode = 0x20,
- ColumnAddr = 0x21,
- PageAddr = 0x22,
-
- ComScanInc = 0xc0,
- ComScanDec = 0xc8,
- SegRemap = 0xa0,
- SetChargePump = 0x8d,
- ExternalVcc = 0x01,
- SwitchCapVcc = 0x02,
-
- ActivateScroll = 0x2f,
- DeActivateScroll = 0x2e,
- SetVerticalScrollArea = 0xa3,
- RightHorizontalScroll = 0x26,
- LeftHorizontalScroll = 0x27,
- VerticalAndRightHorizontalScroll = 0x29,
- VerticalAndLeftHorizontalScroll = 0x2a,
-};
-
-// Controls the SSD1306 128x32 OLED display via i2c
-
-#ifndef SSD1306_ADDRESS
-# define SSD1306_ADDRESS 0x3C
-#endif
-
-#define DisplayHeight 32
-#define DisplayWidth 128
-
-#define FontHeight 8
-#define FontWidth 6
-
-#define MatrixRows (DisplayHeight / FontHeight)
-#define MatrixCols (DisplayWidth / FontWidth)
-
-struct CharacterMatrix {
- uint8_t display[MatrixRows][MatrixCols];
- uint8_t *cursor;
- bool dirty;
-};
-
-extern struct CharacterMatrix display;
-
-bool iota_gfx_init(void);
-void iota_gfx_task(void);
-bool iota_gfx_off(void);
-bool iota_gfx_on(void);
-void iota_gfx_flush(void);
-void iota_gfx_write_char(uint8_t c);
-void iota_gfx_write(const char *data);
-void iota_gfx_write_P(const char *data);
-void iota_gfx_clear_screen(void);
-
-void iota_gfx_task_user(void);
-
-void matrix_clear(struct CharacterMatrix *matrix);
-void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c);
-void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c);
-void matrix_write(struct CharacterMatrix *matrix, const char *data);
-void matrix_write_P(struct CharacterMatrix *matrix, const char *data);
-void matrix_render(struct CharacterMatrix *matrix);
--
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