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qmk_firmware/drivers/oled/oled_driver.h
JayceFayne 767f2c0284
[Core] Add is_oled_scrolling (#14305)
2021-09-05 09:09:20 -07:00

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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/>.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
// an enumeration of the chips this driver supports
#define OLED_IC_SSD1306 0
#define OLED_IC_SH1106 1
#if defined(OLED_DISPLAY_CUSTOM)
// Expected user to implement the necessary defines
#elif defined(OLED_DISPLAY_128X64)
// Double height 128x64
# ifndef OLED_DISPLAY_WIDTH
# define OLED_DISPLAY_WIDTH 128
# endif
# ifndef OLED_DISPLAY_HEIGHT
# define OLED_DISPLAY_HEIGHT 64
# endif
# ifndef OLED_MATRIX_SIZE
# define OLED_MATRIX_SIZE (OLED_DISPLAY_HEIGHT / 8 * OLED_DISPLAY_WIDTH) // 1024 (compile time mathed)
# endif
# ifndef OLED_BLOCK_TYPE
# define OLED_BLOCK_TYPE uint16_t
# endif
# ifndef OLED_BLOCK_COUNT
# define OLED_BLOCK_COUNT (sizeof(OLED_BLOCK_TYPE) * 8) // 32 (compile time mathed)
# endif
# ifndef OLED_BLOCK_SIZE
# define OLED_BLOCK_SIZE (OLED_MATRIX_SIZE / OLED_BLOCK_COUNT) // 32 (compile time mathed)
# endif
# ifndef OLED_COM_PINS
# define OLED_COM_PINS COM_PINS_ALT
# endif
// For 90 degree rotation, we map our internal matrix to oled matrix using fixed arrays
// The OLED writes to it's memory horizontally, starting top left, but our memory starts bottom left in this mode
# ifndef OLED_SOURCE_MAP
# define OLED_SOURCE_MAP \
{ 0, 8, 16, 24, 32, 40, 48, 56 }
# endif
# ifndef OLED_TARGET_MAP
# define OLED_TARGET_MAP \
{ 56, 48, 40, 32, 24, 16, 8, 0 }
# endif
// If OLED_BLOCK_TYPE is uint32_t, these tables would look like:
// #define OLED_SOURCE_MAP { 32, 40, 48, 56 }
// #define OLED_TARGET_MAP { 24, 16, 8, 0 }
// If OLED_BLOCK_TYPE is uint16_t, these tables would look like:
// #define OLED_SOURCE_MAP { 0, 8, 16, 24, 32, 40, 48, 56 }
// #define OLED_TARGET_MAP { 56, 48, 40, 32, 24, 16, 8, 0 }
// If OLED_BLOCK_TYPE is uint8_t, these tables would look like:
// #define OLED_SOURCE_MAP { 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120 }
// #define OLED_TARGET_MAP { 56, 120, 48, 112, 40, 104, 32, 96, 24, 88, 16, 80, 8, 72, 0, 64 }
#else // defined(OLED_DISPLAY_128X64)
// Default 128x32
# ifndef OLED_DISPLAY_WIDTH
# define OLED_DISPLAY_WIDTH 128
# endif
# ifndef OLED_DISPLAY_HEIGHT
# define OLED_DISPLAY_HEIGHT 32
# endif
# ifndef OLED_MATRIX_SIZE
# define OLED_MATRIX_SIZE (OLED_DISPLAY_HEIGHT / 8 * OLED_DISPLAY_WIDTH) // 512 (compile time mathed)
# endif
# ifndef OLED_BLOCK_TYPE
# define OLED_BLOCK_TYPE uint16_t // Type to use for segmenting the oled display for smart rendering, use unsigned types only
# endif
# ifndef OLED_BLOCK_COUNT
# define OLED_BLOCK_COUNT (sizeof(OLED_BLOCK_TYPE) * 8) // 16 (compile time mathed)
# endif
# ifndef OLED_BLOCK_SIZE
# define OLED_BLOCK_SIZE (OLED_MATRIX_SIZE / OLED_BLOCK_COUNT) // 32 (compile time mathed)
# endif
# ifndef OLED_COM_PINS
# define OLED_COM_PINS COM_PINS_SEQ
# endif
// For 90 degree rotation, we map our internal matrix to oled matrix using fixed arrays
// The OLED writes to it's memory horizontally, starting top left, but our memory starts bottom left in this mode
# ifndef OLED_SOURCE_MAP
# define OLED_SOURCE_MAP \
{ 0, 8, 16, 24 }
# endif
# ifndef OLED_TARGET_MAP
# define OLED_TARGET_MAP \
{ 24, 16, 8, 0 }
# endif
// If OLED_BLOCK_TYPE is uint8_t, these tables would look like:
// #define OLED_SOURCE_MAP { 0, 8, 16, 24, 32, 40, 48, 56 }
// #define OLED_TARGET_MAP { 48, 32, 16, 0, 56, 40, 24, 8 }
#endif // defined(OLED_DISPLAY_CUSTOM)
#if !defined(OLED_IC)
# define OLED_IC OLED_IC_SSD1306
#endif
// the column address corresponding to the first column in the display hardware
#if !defined(OLED_COLUMN_OFFSET)
# define OLED_COLUMN_OFFSET 0
#endif
// Address to use for the i2c oled communication
#if !defined(OLED_DISPLAY_ADDRESS)
# define OLED_DISPLAY_ADDRESS 0x3C
#endif
// Custom font file to use
#if !defined(OLED_FONT_H)
# define OLED_FONT_H "glcdfont.c"
#endif
// unsigned char value of the first character in the font file
#if !defined(OLED_FONT_START)
# define OLED_FONT_START 0
#endif
// unsigned char value of the last character in the font file
#if !defined(OLED_FONT_END)
# define OLED_FONT_END 223
#endif
// Font render width
#if !defined(OLED_FONT_WIDTH)
# define OLED_FONT_WIDTH 6
#endif
// Font render height
#if !defined(OLED_FONT_HEIGHT)
# define OLED_FONT_HEIGHT 8
#endif
// Default brightness level
#if !defined(OLED_BRIGHTNESS)
# define OLED_BRIGHTNESS 255
#endif
#if !defined(OLED_TIMEOUT)
# if defined(OLED_DISABLE_TIMEOUT)
# define OLED_TIMEOUT 0
# else
# define OLED_TIMEOUT 60000
# endif
#endif
#if !defined(OLED_FADE_OUT_INTERVAL)
# define OLED_FADE_OUT_INTERVAL 0x00
#endif
#if OLED_FADE_OUT_INTERVAL > 0x0F || OLED_FADE_OUT_INTERVAL < 0x00
# error OLED_FADE_OUT_INTERVAL must be between 0x00 and 0x0F
#endif
#if !defined(OLED_I2C_TIMEOUT)
# define OLED_I2C_TIMEOUT 100
#endif
#if !defined(OLED_UPDATE_INTERVAL) && defined(SPLIT_KEYBOARD)
# define OLED_UPDATE_INTERVAL 50
#endif
typedef struct __attribute__((__packed__)) {
uint8_t *current_element;
uint16_t remaining_element_count;
} oled_buffer_reader_t;
// OLED Rotation enum values are flags
typedef enum {
OLED_ROTATION_0 = 0,
OLED_ROTATION_90 = 1,
OLED_ROTATION_180 = 2,
OLED_ROTATION_270 = 3, // OLED_ROTATION_90 | OLED_ROTATION_180
} oled_rotation_t;
// Initialize the oled display, rotating the rendered output based on the define passed in.
// Returns true if the OLED was initialized successfully
bool oled_init(oled_rotation_t rotation);
// Called at the start of oled_init, weak function overridable by the user
// rotation - the value passed into oled_init
// Return new oled_rotation_t if you want to override default rotation
oled_rotation_t oled_init_user(oled_rotation_t rotation);
// Clears the display buffer, resets cursor position to 0, and sets the buffer to dirty for rendering
void oled_clear(void);
// Renders the dirty chunks of the buffer to oled display
void oled_render(void);
// Moves cursor to character position indicated by column and line, wraps if out of bounds
// Max column denoted by 'oled_max_chars()' and max lines by 'oled_max_lines()' functions
void oled_set_cursor(uint8_t col, uint8_t line);
// Advances the cursor to the next page, writing ' ' if true
// Wraps to the begining when out of bounds
void oled_advance_page(bool clearPageRemainder);
// Moves the cursor forward 1 character length
// Advance page if there is not enough room for the next character
// Wraps to the begining when out of bounds
void oled_advance_char(void);
// Writes a single character to the buffer at current cursor position
// Advances the cursor while writing, inverts the pixels if true
// Main handler that writes character data to the display buffer
void oled_write_char(const char data, bool invert);
// Writes a string to the buffer at current cursor position
// Advances the cursor while writing, inverts the pixels if true
void oled_write(const char *data, bool invert);
// Writes a string to the buffer at current cursor position
// Advances the cursor while writing, inverts the pixels if true
// Advances the cursor to the next page, wiring ' ' to the remainder of the current page
void oled_write_ln(const char *data, bool invert);
// Pans the buffer to the right (or left by passing true) by moving contents of the buffer
// Useful for moving the screen in preparation for new drawing
void oled_pan(bool left);
// Returns a pointer to the requested start index in the buffer plus remaining
// buffer length as struct
oled_buffer_reader_t oled_read_raw(uint16_t start_index);
// Writes a string to the buffer at current cursor position
void oled_write_raw(const char *data, uint16_t size);
// Writes a single byte into the buffer at the specified index
void oled_write_raw_byte(const char data, uint16_t index);
// Sets a specific pixel on or off
// Coordinates start at top-left and go right and down for positive x and y
void oled_write_pixel(uint8_t x, uint8_t y, bool on);
#if defined(__AVR__)
// Writes a PROGMEM string to the buffer at current cursor position
// Advances the cursor while writing, inverts the pixels if true
// Remapped to call 'void oled_write(const char *data, bool invert);' on ARM
void oled_write_P(const char *data, bool invert);
// Writes a PROGMEM string to the buffer at current cursor position
// Advances the cursor while writing, inverts the pixels if true
// Advances the cursor to the next page, wiring ' ' to the remainder of the current page
// Remapped to call 'void oled_write_ln(const char *data, bool invert);' on ARM
void oled_write_ln_P(const char *data, bool invert);
// Writes a PROGMEM string to the buffer at current cursor position
void oled_write_raw_P(const char *data, uint16_t size);
#else
# define oled_write_P(data, invert) oled_write(data, invert)
# define oled_write_ln_P(data, invert) oled_write(data, invert)
# define oled_write_raw_P(data, size) oled_write_raw(data, size)
#endif // defined(__AVR__)
// Can be used to manually turn on the screen if it is off
// Returns true if the screen was on or turns on
bool oled_on(void);
// Can be used to manually turn off the screen if it is on
// Returns true if the screen was off or turns off
bool oled_off(void);
// Returns true if the oled is currently on, false if it is
// not
bool is_oled_on(void);
// Sets the brightness of the display
uint8_t oled_set_brightness(uint8_t level);
// Gets the current brightness of the display
uint8_t oled_get_brightness(void);
// Basically it's oled_render, but with timeout management and oled_task_user calling!
void oled_task(void);
// Called at the start of oled_task, weak function overridable by the user
void oled_task_user(void);
// 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);
// Sets scroll speed, 0-7, fastest to slowest. Default is three.
// Does not take effect until scrolling is either started or restarted
// the ssd1306 supports 8 speeds with the delay
// listed below betwen each frame of the scrolling effect
// 0=2, 1=3, 2=4, 3=5, 4=25, 5=64, 6=128, 7=256
void oled_scroll_set_speed(uint8_t speed);
// Scrolls the entire display right
// Returns true if the screen was scrolling or starts scrolling
// NOTE: display contents cannot be changed while scrolling
bool oled_scroll_right(void);
// Scrolls the entire display left
// Returns true if the screen was scrolling or starts scrolling
// NOTE: display contents cannot be changed while scrolling
bool oled_scroll_left(void);
// Turns off display scrolling
// Returns true if the screen was not scrolling or stops scrolling
bool oled_scroll_off(void);
// Returns true if the oled is currently scrolling, false if it is
// not
bool is_oled_scrolling(void);
// Inverts the display
// Returns true if the screen was or is inverted
bool oled_invert(bool invert);
// Returns the maximum number of characters that will fit on a line
uint8_t oled_max_chars(void);
// Returns the maximum number of lines that will fit on the oled
uint8_t oled_max_lines(void);
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