300 lines
11 KiB
C
300 lines
11 KiB
C
/*
|
|
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
|
|
|
|
#if !defined(OLED_TIMEOUT)
|
|
# if defined(OLED_DISABLE_TIMEOUT)
|
|
# define OLED_TIMEOUT 0
|
|
# else
|
|
# define OLED_TIMEOUT 60000
|
|
# endif
|
|
#endif
|
|
|
|
#if !defined(OLED_I2C_TIMEOUT)
|
|
# define OLED_I2C_TIMEOUT 100
|
|
#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
|
|
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);
|
|
|
|
void oled_write_raw(const char *data, uint16_t size);
|
|
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);
|
|
|
|
void oled_write_raw_P(const char *data, uint16_t size);
|
|
#else
|
|
// Writes a string to the buffer at current cursor position
|
|
// Advances the cursor while writing, inverts the pixels if true
|
|
# define oled_write_P(data, invert) oled_write(data, 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
|
|
# 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);
|
|
|
|
// 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 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);
|