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include/drivers/display.h

@@ -0,0 +1,56 @@
+//display.h - Raw control over I2C display hardware
+
+#ifndef DISPLAY_H_
+#define DISPLAY_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+
+
+
+#define DISP_LINES 4
+#define DISP_COLS 20
+#define DISP_SIZE (DISP_COLS * DISP_LINES)
+
+#define DISP_I2C0 0
+#define DISP_I2C1 1
+
+#define DISP_CHAR_ARROWR '\x7e'
+#define DISP_CHAR_ARROWL '\x7f'
+#define DISP_CHAR_DOT_HIGH '\xa5'
+#define DISP_CHAR_BOX '\xdb'
+#define DISP_CHAR_DEGREE '\xdf'
+#define DISP_CHAR_ALPHA '\xe0'
+#define DISP_CHAR_BETA '\xe2'
+#define DISP_CHAR_EPSILON '\xe3'
+#define DISP_CHAR_MU '\xe4'
+#define DISP_CHAR_SQRT '\xe9'
+#define DISP_CHAR_OMEGA '\xf4'
+#define DISP_CHAR_SUM '\xf7'
+#define DISP_CHAR_PI '\xf8'
+#define DISP_CHAR_DOT_DIV '\xfd'
+#define DISP_CHAR_BLACK '\xff'
+
+//TODO: Set custom chars
+#define DISP_CHAR_NOTE '\x01'
+#define DISP_CHAR_LIST '\x02'
+#define DISP_CHAR_SEARCH '\x03'
+
+typedef struct display_t display_t;
+
+display_t *display_init(int bus, uint8_t addr);
+void display_destroy(display_t *display);
+
+void display_set_backlight(display_t *display, bool backlight);
+void display_set_cursor(display_t *display, int lin, int col);
+void display_clear(display_t *display);
+void display_write_ch(display_t *display, char ch);
+void display_write_str(display_t *display, char *str);
+void display_write_str_at(display_t *display, char *str, int lin, int col);
+
+void display_set_display_on(display_t *display, bool on);
+void display_set_cursor_show(display_t *display, bool show);
+void display_set_cursor_blink(display_t *display, bool blink);
+void display_set_custom_char(display_t *display, uint8_t char_idx, uint64_t data);
+
+#endif

include/systems/lcd_writer.h

@@ -0,0 +1,21 @@
+//lcd_writer.h - Defines interface for buffered, async LCD display writting
+
+#ifndef DISPLAY_WRITER_H_
+#define DISPLAY_WRITER_H_
+
+#include <stdbool.h>
+
+#include <drivers/display.h>
+
+typedef struct lcd_writer_t lcd_writer_t;
+
+lcd_writer_t *lcd_writer_init(display_t *display, bool bypass);
+void lcd_writer_destroy(lcd_writer_t *lcdw);
+
+void lcd_writer_clr(lcd_writer_t *lcdw);
+void lcd_writer_clr_line(lcd_writer_t *lcdw, int lin);
+void lcd_writer_chr(lcd_writer_t *lcdw, char ch, int lin, int col);
+void lcd_writer_str(lcd_writer_t *lcdw, char *str, int lin, int col);
+void lcd_writer_flush(lcd_writer_t *lcdw);
+
+#endif

include/systems/pager.h

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+#pragma once
+
+void pager_init();
+void pager_destroy();
+
+//void pager_add_page(page_t *page);
+//void pager_draw(display_t *disp);