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-/*
-Copyright 2019 Ryan Caltabiano <https://github.com/XScorpion2>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-#include "i2c_master.h"
-#include "oled_driver.h"
-#include OLED_FONT_H
-#include "timer.h"
-#include "print.h"
-
-#include <string.h>
-
-#include "progmem.h"
-
-#include "keyboard.h"
-
-// for SH1107: https://www.displayfuture.com/Display/datasheet/controller/SH1107.pdf
-
-// Fundamental Commands
-#define CONTRAST 0x81
-#define DISPLAY_ALL_ON 0xA5
-#define DISPLAY_ALL_ON_RESUME 0xA4
-#define NORMAL_DISPLAY 0xA6
-#define INVERT_DISPLAY 0xA7
-#define DISPLAY_ON 0xAF
-#define DISPLAY_OFF 0xAE
-#define NOP 0xE3
-
-// Scrolling Commands
-#define ACTIVATE_SCROLL 0x2F
-#define DEACTIVATE_SCROLL 0x2E
-#define SCROLL_RIGHT 0x26
-#define SCROLL_LEFT 0x27
-#define SCROLL_RIGHT_UP 0x29
-#define SCROLL_LEFT_UP 0x2A
-
-// Addressing Setting Commands
-#define MEMORY_MODE 0x20
-#define COLUMN_ADDR 0x21
-#define PAGE_ADDR 0x22
-#define PAM_SETCOLUMN_LSB 0x00
-#define PAM_SETCOLUMN_MSB 0x10
-#define PAM_PAGE_ADDR 0xB0 // 0xb0 -- 0xb7
-
-// Hardware Configuration Commands
-#define DISPLAY_START_LINE 0x40
-#define SEGMENT_REMAP 0xA0
-#define SEGMENT_REMAP_INV 0xA1
-#define MULTIPLEX_RATIO 0xA8
-#define COM_SCAN_INC 0xC0
-#define COM_SCAN_DEC 0xC8
-#define DISPLAY_OFFSET 0xD3
-#define COM_PINS 0xDA
-#define COM_PINS_SEQ 0x02
-#define COM_PINS_ALT 0x12
-#define COM_PINS_SEQ_LR 0x22
-#define COM_PINS_ALT_LR 0x32
-
-// Timing & Driving Commands
-#define DISPLAY_CLOCK 0xD5
-#define PRE_CHARGE_PERIOD 0xD9
-#define VCOM_DETECT 0xDB
-
-// Advance Graphic Commands
-#define FADE_BLINK 0x23
-#define ENABLE_FADE 0x20
-#define ENABLE_BLINK 0x30
-
-// Charge Pump Commands
-#define CHARGE_PUMP 0x8D
-
-// Commands specific to the SH1107 chip
-#define SH1107_DISPLAY_START_LINE 0xDC
-#define SH1107_MEMORY_MODE_PAGE 0x20
-#define SH1107_MEMORY_MODE_VERTICAL 0x21
-
-// Misc defines
-#ifndef OLED_BLOCK_COUNT
-# define OLED_BLOCK_COUNT (sizeof(OLED_BLOCK_TYPE) * 8)
-#endif
-#ifndef OLED_BLOCK_SIZE
-# define OLED_BLOCK_SIZE (OLED_MATRIX_SIZE / OLED_BLOCK_COUNT)
-#endif
-
-#define OLED_ALL_BLOCKS_MASK (((((OLED_BLOCK_TYPE)1 << (OLED_BLOCK_COUNT - 1)) - 1) << 1) | 1)
-
-#ifndef OLED_COM_PIN_COUNT
-# define OLED_COM_PIN_COUNT 128
-#endif
-
-#ifndef OLED_COM_PIN_OFFSET
-# define OLED_COM_PIN_OFFSET 0
-#endif
-
-// i2c defines
-#define I2C_CMD 0x00
-#define I2C_DATA 0x40
-#if defined(__AVR__)
-# define I2C_TRANSMIT_P(data) i2c_transmit_P((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), OLED_I2C_TIMEOUT)
-#else // defined(__AVR__)
-# define I2C_TRANSMIT_P(data) i2c_transmit((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), OLED_I2C_TIMEOUT)
-#endif // defined(__AVR__)
-#define I2C_TRANSMIT(data) i2c_transmit((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), OLED_I2C_TIMEOUT)
-#define I2C_WRITE_REG(mode, data, size) i2c_writeReg((OLED_DISPLAY_ADDRESS << 1), mode, data, size, OLED_I2C_TIMEOUT)
-
-#define HAS_FLAGS(bits, flags) ((bits & flags) == flags)
-
-// Display buffer's is the same as the OLED memory layout
-// this is so we don't end up with rounding errors with
-// parts of the display unusable or don't get cleared correctly
-// and also allows for drawing & inverting
-uint8_t oled_buffer[OLED_MATRIX_SIZE];
-uint8_t *oled_cursor;
-OLED_BLOCK_TYPE oled_dirty = 0;
-bool oled_initialized = false;
-bool oled_active = false;
-bool oled_scrolling = false;
-bool oled_inverted = false;
-uint8_t oled_brightness = OLED_BRIGHTNESS;
-oled_rotation_t oled_rotation = 0;
-uint8_t oled_rotation_width = 0;
-uint8_t oled_scroll_speed = 0; // this holds the speed after being remapped to ssd1306 internal values
-uint8_t oled_scroll_start = 0;
-uint8_t oled_scroll_end = 7;
-#if OLED_TIMEOUT > 0
-uint32_t oled_timeout;
-#endif
-#if OLED_SCROLL_TIMEOUT > 0
-uint32_t oled_scroll_timeout;
-#endif
-#if OLED_UPDATE_INTERVAL > 0
-uint16_t oled_update_timeout;
-#endif
-
-// Internal variables to reduce math instructions
-
-#if defined(__AVR__)
-// identical to i2c_transmit, but for PROGMEM since all initialization is in PROGMEM arrays currently
-// probably should move this into i2c_master...
-static i2c_status_t i2c_transmit_P(uint8_t address, const uint8_t *data, uint16_t length, uint16_t timeout) {
- i2c_status_t status = i2c_start(address | I2C_WRITE, timeout);
-
- for (uint16_t i = 0; i < length && status >= 0; i++) {
- status = i2c_write(pgm_read_byte((const char *)data++), timeout);
- if (status) break;
- }
-
- i2c_stop();
-
- return status;
-}
-#endif
-
-// Flips the rendering bits for a character at the current cursor position
-static void InvertCharacter(uint8_t *cursor) {
- const uint8_t *end = cursor + OLED_FONT_WIDTH;
- while (cursor < end) {
- *cursor = ~(*cursor);
- cursor++;
- }
-}
-
-bool oled_init(oled_rotation_t rotation) {
-#if defined(USE_I2C) && defined(SPLIT_KEYBOARD)
- if (!is_keyboard_master()) {
- return true;
- }
-#endif
-
- oled_rotation = oled_init_user(oled_init_kb(rotation));
- if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
- oled_rotation_width = OLED_DISPLAY_WIDTH;
- } else {
- oled_rotation_width = OLED_DISPLAY_HEIGHT;
- }
- i2c_init();
-
- static const uint8_t PROGMEM display_setup1[] = {
- I2C_CMD,
- DISPLAY_OFF,
- DISPLAY_CLOCK,
- 0x80,
- MULTIPLEX_RATIO,
- OLED_DISPLAY_WIDTH - 1,
- SH1107_DISPLAY_START_LINE,
- 0x00,
- CHARGE_PUMP,
- 0x14,
- SH1107_MEMORY_MODE_PAGE,
- };
- if (I2C_TRANSMIT_P(display_setup1) != I2C_STATUS_SUCCESS) {
- print("oled_init cmd set 1 failed\n");
- return false;
- }
-
- if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_180)) {
- static const uint8_t PROGMEM display_normal[] = {
- I2C_CMD,
- SEGMENT_REMAP_INV,
- COM_SCAN_DEC,
- DISPLAY_OFFSET,
- OLED_COM_PIN_OFFSET,
- };
- if (I2C_TRANSMIT_P(display_normal) != I2C_STATUS_SUCCESS) {
- print("oled_init cmd normal rotation failed\n");
- return false;
- }
- } else {
- static const uint8_t PROGMEM display_flipped[] = {
- I2C_CMD,
- SEGMENT_REMAP,
- COM_SCAN_INC,
- DISPLAY_OFFSET,
- (OLED_COM_PIN_COUNT - OLED_COM_PIN_OFFSET) % OLED_COM_PIN_COUNT,
- };
- if (I2C_TRANSMIT_P(display_flipped) != I2C_STATUS_SUCCESS) {
- print("display_flipped failed\n");
- return false;
- }
- }
-
- static const uint8_t PROGMEM display_setup2[] = {
- I2C_CMD, COM_PINS,
- OLED_COM_PINS,
- CONTRAST, OLED_BRIGHTNESS,
- PRE_CHARGE_PERIOD, 0x22,
- VCOM_DETECT, 0x35,
- DISPLAY_ALL_ON_RESUME,
- NORMAL_DISPLAY,
- DEACTIVATE_SCROLL,
- DISPLAY_ON
- };
- if (I2C_TRANSMIT_P(display_setup2) != I2C_STATUS_SUCCESS) {
- print("display_setup2 failed\n");
- return false;
- }
-
-#if OLED_TIMEOUT > 0
- oled_timeout = timer_read32() + OLED_TIMEOUT;
-#endif
-#if OLED_SCROLL_TIMEOUT > 0
- oled_scroll_timeout = timer_read32() + OLED_SCROLL_TIMEOUT;
-#endif
-
- oled_clear();
- oled_initialized = true;
- oled_active = true;
- oled_scrolling = false;
- return true;
-}
-
-__attribute__((weak)) oled_rotation_t oled_init_kb(oled_rotation_t rotation) {
- return rotation;
-}
-__attribute__((weak)) oled_rotation_t oled_init_user(oled_rotation_t rotation) {
- return rotation;
-}
-
-void oled_clear(void) {
- memset(oled_buffer, 0, sizeof(oled_buffer));
- oled_cursor = &oled_buffer[0];
- oled_dirty = OLED_ALL_BLOCKS_MASK;
-}
-
-static void calc_bounds(uint8_t update_start, uint8_t *cmd_array) {
- // Calculate commands to set memory addressing bounds.
- uint8_t start_page = OLED_BLOCK_SIZE * update_start / OLED_DISPLAY_WIDTH;
- uint8_t start_column = OLED_BLOCK_SIZE * update_start % OLED_DISPLAY_WIDTH;
- // Commands for Page Addressing Mode. Sets starting page and column; has no end bound.
- // Column value must be split into high and low nybble and sent as two commands.
- cmd_array[0] = PAM_PAGE_ADDR | start_page;
- cmd_array[1] = PAM_SETCOLUMN_LSB | ((OLED_COLUMN_OFFSET + start_column) & 0x0f);
- cmd_array[2] = PAM_SETCOLUMN_MSB | ((OLED_COLUMN_OFFSET + start_column) >> 4 & 0x0f);
-}
-
-static void calc_bounds_90(uint8_t update_start, uint8_t *cmd_array) {
- // Block numbering starts from the bottom left corner, going up and then to
- // the right. The controller needs the page and column numbers for the top
- // left and bottom right corners of that block.
-
- // Total number of pages across the screen height.
- const uint8_t height_in_pages = OLED_DISPLAY_HEIGHT / 8;
-
- // Difference of starting page numbers for adjacent blocks; may be 0 if
- // blocks are large enough to occupy one or more whole 8px columns.
- const uint8_t page_inc_per_block = OLED_BLOCK_SIZE % OLED_DISPLAY_HEIGHT / 8;
-
- // Top page number for a block which is at the bottom edge of the screen.
- const uint8_t bottom_block_top_page = (height_in_pages - page_inc_per_block) % height_in_pages;
-
- // Only the Page Addressing Mode is supported
- uint8_t start_page = bottom_block_top_page - (OLED_BLOCK_SIZE * update_start % OLED_DISPLAY_HEIGHT / 8);
- uint8_t start_column = OLED_BLOCK_SIZE * update_start / OLED_DISPLAY_HEIGHT * 8;
- cmd_array[0] = PAM_PAGE_ADDR | start_page;
- cmd_array[1] = PAM_SETCOLUMN_LSB | ((OLED_COLUMN_OFFSET + start_column) & 0x0f);
- cmd_array[2] = PAM_SETCOLUMN_MSB | ((OLED_COLUMN_OFFSET + start_column) >> 4 & 0x0f);
-}
-
-uint8_t crot(uint8_t a, int8_t n) {
- const uint8_t mask = 0x7;
- n &= mask;
- return a << n | a >> (-n & mask);
-}
-
-static void rotate_90(const uint8_t *src, uint8_t *dest) {
- for (uint8_t i = 0, shift = 7; i < 8; ++i, --shift) {
- uint8_t selector = (1 << i);
- for (uint8_t j = 0; j < 8; ++j) {
- dest[i] |= crot(src[j] & selector, shift - (int8_t)j);
- }
- }
-}
-
-void oled_render(void) {
- // Do we have work to do?
- oled_dirty &= OLED_ALL_BLOCKS_MASK;
- if (!oled_dirty || !oled_initialized || oled_scrolling) {
- return;
- }
-
- // Turn on display if it is off
- oled_on();
-
- uint8_t update_start = 0;
- uint8_t num_processed = 0;
- while (oled_dirty && num_processed++ < OLED_UPDATE_PROCESS_LIMIT) { // render all dirty blocks (up to the configured limit)
- // Find next dirty block
- while (!(oled_dirty & ((OLED_BLOCK_TYPE)1 << update_start))) {
- ++update_start;
- }
-
- // Set column & page position
- static uint8_t display_start[] = {I2C_CMD, PAM_PAGE_ADDR, PAM_SETCOLUMN_LSB, PAM_SETCOLUMN_MSB};
- if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
- calc_bounds(update_start, &display_start[1]); // Offset from I2C_CMD byte at the start
- } else {
- calc_bounds_90(update_start, &display_start[1]); // Offset from I2C_CMD byte at the start
- }
-
- // Send column & page position
- if (I2C_TRANSMIT(display_start) != I2C_STATUS_SUCCESS) {
- print("oled_render offset command failed\n");
- return;
- }
-
- if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
- // Send render data chunk as is
- if (I2C_WRITE_REG(I2C_DATA, &oled_buffer[OLED_BLOCK_SIZE * update_start], OLED_BLOCK_SIZE) != I2C_STATUS_SUCCESS) {
- print("oled_render data failed\n");
- return;
- }
- } else {
- // Rotate the render chunks
- const static uint8_t source_map[] = OLED_SOURCE_MAP;
- const static uint8_t target_map[] = OLED_TARGET_MAP;
-
- static uint8_t temp_buffer[OLED_BLOCK_SIZE];
- memset(temp_buffer, 0, sizeof(temp_buffer));
- for (uint8_t i = 0; i < sizeof(source_map); ++i) {
- rotate_90(&oled_buffer[OLED_BLOCK_SIZE * update_start + source_map[i]], &temp_buffer[target_map[i]]);
- }
-
- // For SH1106 or SH1107 the data chunk must be split into separate pieces for each page
- const uint8_t columns_in_block = (OLED_BLOCK_SIZE + OLED_DISPLAY_HEIGHT - 1) / OLED_DISPLAY_HEIGHT * 8;
- const uint8_t num_pages = OLED_BLOCK_SIZE / columns_in_block;
- for (uint8_t i = 0; i < num_pages; ++i) {
- // Send column & page position for all pages except the first one
- if (i > 0) {
- display_start[1]++;
- if (I2C_TRANSMIT(display_start) != I2C_STATUS_SUCCESS) {
- print("oled_render offset command failed\n");
- return;
- }
- }
- // Send data for the page
- if (I2C_WRITE_REG(I2C_DATA, &temp_buffer[columns_in_block * i], columns_in_block) != I2C_STATUS_SUCCESS) {
- print("oled_render90 data failed\n");
- return;
- }
- }
- }
-
- // Clear dirty flag
- oled_dirty &= ~((OLED_BLOCK_TYPE)1 << update_start);
- }
-}
-
-void oled_set_cursor(uint8_t col, uint8_t line) {
- uint16_t index = line * oled_rotation_width + col * OLED_FONT_WIDTH;
-
- // Out of bounds?
- if (index >= OLED_MATRIX_SIZE) {
- index = 0;
- }
-
- oled_cursor = &oled_buffer[index];
-}
-
-void oled_advance_page(bool clearPageRemainder) {
- uint16_t index = oled_cursor - &oled_buffer[0];
- uint8_t remaining = oled_rotation_width - (index % oled_rotation_width);
-
- if (clearPageRemainder) {
- // Remaining Char count
- remaining = remaining / OLED_FONT_WIDTH;
-
- // Write empty character until next line
- while (remaining--)
- oled_write_char(' ', false);
- } else {
- // Next page index out of bounds?
- if (index + remaining >= OLED_MATRIX_SIZE) {
- index = 0;
- remaining = 0;
- }
-
- oled_cursor = &oled_buffer[index + remaining];
- }
-}
-
-void oled_advance_char(void) {
- uint16_t nextIndex = oled_cursor - &oled_buffer[0] + OLED_FONT_WIDTH;
- uint8_t remainingSpace = oled_rotation_width - (nextIndex % oled_rotation_width);
-
- // Do we have enough space on the current line for the next character
- if (remainingSpace < OLED_FONT_WIDTH) {
- nextIndex += remainingSpace;
- }
-
- // Did we go out of bounds
- if (nextIndex >= OLED_MATRIX_SIZE) {
- nextIndex = 0;
- }
-
- // Update cursor position
- oled_cursor = &oled_buffer[nextIndex];
-}
-
-// Main handler that writes character data to the display buffer
-void oled_write_char(const char data, bool invert) {
- // Advance to the next line if newline
- if (data == '\n') {
- // Old source wrote ' ' until end of line...
- oled_advance_page(true);
- return;
- }
-
- if (data == '\r') {
- oled_advance_page(false);
- return;
- }
-
- // copy the current render buffer to check for dirty after
- static uint8_t oled_temp_buffer[OLED_FONT_WIDTH];
- memcpy(&oled_temp_buffer, oled_cursor, OLED_FONT_WIDTH);
-
- _Static_assert(sizeof(font) >= ((OLED_FONT_END + 1 - OLED_FONT_START) * OLED_FONT_WIDTH), "OLED_FONT_END references outside array");
-
- // set the reder buffer data
- uint8_t cast_data = (uint8_t)data; // font based on unsigned type for index
- if (cast_data < OLED_FONT_START || cast_data > OLED_FONT_END) {
- memset(oled_cursor, 0x00, OLED_FONT_WIDTH);
- } else {
- const uint8_t *glyph = &font[(cast_data - OLED_FONT_START) * OLED_FONT_WIDTH];
- memcpy_P(oled_cursor, glyph, OLED_FONT_WIDTH);
- }
-
- // Invert if needed
- if (invert) {
- InvertCharacter(oled_cursor);
- }
-
- // Dirty check
- if (memcmp(&oled_temp_buffer, oled_cursor, OLED_FONT_WIDTH)) {
- uint16_t index = oled_cursor - &oled_buffer[0];
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (index / OLED_BLOCK_SIZE));
- // Edgecase check if the written data spans the 2 chunks
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << ((index + OLED_FONT_WIDTH - 1) / OLED_BLOCK_SIZE));
- }
-
- // Finally move to the next char
- oled_advance_char();
-}
-
-void oled_write(const char *data, bool invert) {
- const char *end = data + strlen(data);
- while (data < end) {
- oled_write_char(*data, invert);
- data++;
- }
-}
-
-void oled_write_ln(const char *data, bool invert) {
- oled_write(data, invert);
- oled_advance_page(true);
-}
-
-void oled_pan(bool left) {
- uint16_t i = 0;
- for (uint16_t y = 0; y < OLED_DISPLAY_HEIGHT / 8; y++) {
- if (left) {
- for (uint16_t x = 0; x < OLED_DISPLAY_WIDTH - 1; x++) {
- i = y * OLED_DISPLAY_WIDTH + x;
- oled_buffer[i] = oled_buffer[i + 1];
- }
- } else {
- for (uint16_t x = OLED_DISPLAY_WIDTH - 1; x > 0; x--) {
- i = y * OLED_DISPLAY_WIDTH + x;
- oled_buffer[i] = oled_buffer[i - 1];
- }
- }
- }
- oled_dirty = OLED_ALL_BLOCKS_MASK;
-}
-
-void oled_pan_section(bool left, uint16_t y_start, uint16_t y_end, uint16_t x_start, uint16_t x_end) {
- uint16_t i = 0;
- for (uint16_t y = y_start; y < y_end; y++) {
- if (left) {
- for (uint16_t x = x_start; x < x_end - 1; x++) {
- i = y * OLED_DISPLAY_WIDTH + x;
- oled_buffer[i] = oled_buffer[i + 1];
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (i / OLED_BLOCK_SIZE));
- }
- } else {
- for (uint16_t x = x_end - 1; x > 0; x--) {
- i = y * OLED_DISPLAY_WIDTH + x;
- oled_buffer[i] = oled_buffer[i - 1];
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (i / OLED_BLOCK_SIZE));
- }
- }
- }
-}
-
-oled_buffer_reader_t oled_read_raw(uint16_t start_index) {
- if (start_index > OLED_MATRIX_SIZE) start_index = OLED_MATRIX_SIZE;
- oled_buffer_reader_t ret_reader;
- ret_reader.current_element = &oled_buffer[start_index];
- ret_reader.remaining_element_count = OLED_MATRIX_SIZE - start_index;
- return ret_reader;
-}
-
-void oled_write_raw_byte(const char data, uint16_t index) {
- if (index > OLED_MATRIX_SIZE) index = OLED_MATRIX_SIZE;
- if (oled_buffer[index] == data) return;
- oled_buffer[index] = data;
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (index / OLED_BLOCK_SIZE));
-}
-
-void oled_write_raw(const char *data, uint16_t size) {
- uint16_t cursor_start_index = oled_cursor - &oled_buffer[0];
- if ((size + cursor_start_index) > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE - cursor_start_index;
- for (uint16_t i = cursor_start_index; i < cursor_start_index + size; i++) {
- uint8_t c = *data++;
- if (oled_buffer[i] == c) continue;
- oled_buffer[i] = c;
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (i / OLED_BLOCK_SIZE));
- }
-}
-
-void oled_write_pixel(uint8_t x, uint8_t y, bool on) {
- if (x >= oled_rotation_width) {
- return;
- }
- uint16_t index = x + (y / 8) * oled_rotation_width;
- if (index >= OLED_MATRIX_SIZE) {
- return;
- }
- uint8_t data = oled_buffer[index];
- if (on) {
- data |= (1 << (y % 8));
- } else {
- data &= ~(1 << (y % 8));
- }
- if (oled_buffer[index] != data) {
- oled_buffer[index] = data;
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (index / OLED_BLOCK_SIZE));
- }
-}
-
-#if defined(__AVR__)
-void oled_write_P(const char *data, bool invert) {
- uint8_t c = pgm_read_byte(data);
- while (c != 0) {
- oled_write_char(c, invert);
- c = pgm_read_byte(++data);
- }
-}
-
-void oled_write_ln_P(const char *data, bool invert) {
- oled_write_P(data, invert);
- oled_advance_page(true);
-}
-
-void oled_write_raw_P(const char *data, uint16_t size) {
- uint16_t cursor_start_index = oled_cursor - &oled_buffer[0];
- if ((size + cursor_start_index) > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE - cursor_start_index;
- for (uint16_t i = cursor_start_index; i < cursor_start_index + size; i++) {
- uint8_t c = pgm_read_byte(data++);
- if (oled_buffer[i] == c) continue;
- oled_buffer[i] = c;
- oled_dirty |= ((OLED_BLOCK_TYPE)1 << (i / OLED_BLOCK_SIZE));
- }
-}
-#endif // defined(__AVR__)
-
-bool oled_on(void) {
- if (!oled_initialized) {
- return oled_active;
- }
-
-#if OLED_TIMEOUT > 0
- oled_timeout = timer_read32() + OLED_TIMEOUT;
-#endif
-
- static const uint8_t PROGMEM display_on[] =
-#ifdef OLED_FADE_OUT
- {I2C_CMD, FADE_BLINK, 0x00};
-#else
- {I2C_CMD, DISPLAY_ON};
-#endif
-
- if (!oled_active) {
- if (I2C_TRANSMIT_P(display_on) != I2C_STATUS_SUCCESS) {
- print("oled_on cmd failed\n");
- return oled_active;
- }
- oled_active = true;
- }
- return oled_active;
-}
-
-bool oled_off(void) {
- if (!oled_initialized) {
- return !oled_active;
- }
-
- static const uint8_t PROGMEM display_off[] =
-#ifdef OLED_FADE_OUT
- {I2C_CMD, FADE_BLINK, ENABLE_FADE | OLED_FADE_OUT_INTERVAL};
-#else
- {I2C_CMD, DISPLAY_OFF};
-#endif
-
- if (oled_active) {
- if (I2C_TRANSMIT_P(display_off) != I2C_STATUS_SUCCESS) {
- print("oled_off cmd failed\n");
- return oled_active;
- }
- oled_active = false;
- }
- return !oled_active;
-}
-
-bool is_oled_on(void) {
- return oled_active;
-}
-
-uint8_t oled_set_brightness(uint8_t level) {
- if (!oled_initialized) {
- return oled_brightness;
- }
-
- uint8_t set_contrast[] = {I2C_CMD, CONTRAST, level};
- if (oled_brightness != level) {
- if (I2C_TRANSMIT(set_contrast) != I2C_STATUS_SUCCESS) {
- print("set_brightness cmd failed\n");
- return oled_brightness;
- }
- oled_brightness = level;
- }
- return oled_brightness;
-}
-
-uint8_t oled_get_brightness(void) {
- return oled_brightness;
-}
-
-// Set the specific 8 lines rows of the screen to scroll.
-// 0 is the default for start, and 7 for end, which is the entire
-// height of the screen. For 128x32 screens, rows 4-7 are not used.
-void oled_scroll_set_area(uint8_t start_line, uint8_t end_line) {
- oled_scroll_start = start_line;
- oled_scroll_end = end_line;
-}
-
-void oled_scroll_set_speed(uint8_t speed) {
- // Sets the speed for scrolling... does not take effect
- // until scrolling is either started or restarted
- // the ssd1306 supports 8 speeds
- // FrameRate2 speed = 7
- // FrameRate3 speed = 4
- // FrameRate4 speed = 5
- // FrameRate5 speed = 0
- // FrameRate25 speed = 6
- // FrameRate64 speed = 1
- // FrameRate128 speed = 2
- // FrameRate256 speed = 3
- // for ease of use these are remaped here to be in order
- static const uint8_t scroll_remap[8] = {7, 4, 5, 0, 6, 1, 2, 3};
- oled_scroll_speed = scroll_remap[speed];
-}
-
-bool oled_scroll_right(void) {
- if (!oled_initialized) {
- return oled_scrolling;
- }
-
- // Dont enable scrolling if we need to update the display
- // This prevents scrolling of bad data from starting the scroll too early after init
- if (!oled_dirty && !oled_scrolling) {
- uint8_t display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
- if (I2C_TRANSMIT(display_scroll_right) != I2C_STATUS_SUCCESS) {
- print("oled_scroll_right cmd failed\n");
- return oled_scrolling;
- }
- oled_scrolling = true;
- }
- return oled_scrolling;
-}
-
-bool oled_scroll_left(void) {
- if (!oled_initialized) {
- return oled_scrolling;
- }
-
- // Dont enable scrolling if we need to update the display
- // This prevents scrolling of bad data from starting the scroll too early after init
- if (!oled_dirty && !oled_scrolling) {
- uint8_t display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
- if (I2C_TRANSMIT(display_scroll_left) != I2C_STATUS_SUCCESS) {
- print("oled_scroll_left cmd failed\n");
- return oled_scrolling;
- }
- oled_scrolling = true;
- }
- return oled_scrolling;
-}
-
-bool oled_scroll_off(void) {
- if (!oled_initialized) {
- return !oled_scrolling;
- }
-
- if (oled_scrolling) {
- static const uint8_t PROGMEM display_scroll_off[] = {I2C_CMD, DEACTIVATE_SCROLL};
- if (I2C_TRANSMIT_P(display_scroll_off) != I2C_STATUS_SUCCESS) {
- print("oled_scroll_off cmd failed\n");
- return oled_scrolling;
- }
- oled_scrolling = false;
- oled_dirty = OLED_ALL_BLOCKS_MASK;
- }
- return !oled_scrolling;
-}
-
-bool is_oled_scrolling(void) {
- return oled_scrolling;
-}
-
-bool oled_invert(bool invert) {
- if (!oled_initialized) {
- return oled_inverted;
- }
-
- if (invert && !oled_inverted) {
- static const uint8_t PROGMEM display_inverted[] = {I2C_CMD, INVERT_DISPLAY};
- if (I2C_TRANSMIT_P(display_inverted) != I2C_STATUS_SUCCESS) {
- print("oled_invert cmd failed\n");
- return oled_inverted;
- }
- oled_inverted = true;
- } else if (!invert && oled_inverted) {
- static const uint8_t PROGMEM display_normal[] = {I2C_CMD, NORMAL_DISPLAY};
- if (I2C_TRANSMIT_P(display_normal) != I2C_STATUS_SUCCESS) {
- print("oled_invert cmd failed\n");
- return oled_inverted;
- }
- oled_inverted = false;
- }
-
- return oled_inverted;
-}
-
-uint8_t oled_max_chars(void) {
- if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
- return OLED_DISPLAY_WIDTH / OLED_FONT_WIDTH;
- }
- return OLED_DISPLAY_HEIGHT / OLED_FONT_WIDTH;
-}
-
-uint8_t oled_max_lines(void) {
- if (!HAS_FLAGS(oled_rotation, OLED_ROTATION_90)) {
- return OLED_DISPLAY_HEIGHT / OLED_FONT_HEIGHT;
- }
- return OLED_DISPLAY_WIDTH / OLED_FONT_HEIGHT;
-}
-
-void oled_task(void) {
- if (!oled_initialized) {
- return;
- }
-
-#if OLED_UPDATE_INTERVAL > 0
- if (timer_elapsed(oled_update_timeout) >= OLED_UPDATE_INTERVAL) {
- oled_update_timeout = timer_read();
- oled_set_cursor(0, 0);
- oled_task_kb();
- }
-#else
- oled_set_cursor(0, 0);
- oled_task_kbr();
-#endif
-
-#if OLED_SCROLL_TIMEOUT > 0
- if (oled_dirty && oled_scrolling) {
- oled_scroll_timeout = timer_read32() + OLED_SCROLL_TIMEOUT;
- oled_scroll_off();
- }
-#endif
-
- // Smart render system, no need to check for dirty
- oled_render();
-
- // Display timeout check
-#if OLED_TIMEOUT > 0
- if (oled_active && timer_expired32(timer_read32(), oled_timeout)) {
- oled_off();
- }
-#endif
-
-#if OLED_SCROLL_TIMEOUT > 0
- if (!oled_scrolling && timer_expired32(timer_read32(), oled_scroll_timeout)) {
-# ifdef OLED_SCROLL_TIMEOUT_RIGHT
- oled_scroll_right();
-# else
- oled_scroll_left();
-# endif
- }
-#endif
-}
-
-__attribute__((weak)) bool oled_task_kb(void) {
- return oled_task_user();
-}
-__attribute__((weak)) bool oled_task_user(void) {
- return true;
-}