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/*
* Copyright (c) 2021 Zach White <skullydazed@gmail.com>
* Copyright (c) 2007 Eberhard Fahle
*
* max7219.h - A library for controling Leds with a MAX7219/MAX7221
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* This permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include "quantum.h"
#include "spi_master.h"
// Set defaults if they're not set
#ifndef MAX7219_LOAD
# define MAX7219_LOAD B0
#endif
#ifndef MAX7219_CONTROLLERS
# define MAX7219_CONTROLLERS 4
#endif
#ifndef MAX7219_LED_INTENSITY
# define MAX7219_LED_INTENSITY 1
#endif
#ifndef MAX7219_SCROLL_TIME
# define MAX7219_SCROLL_TIME 100
#endif
#ifndef MAX7219_BUFFER_MULTIPLIER
# define MAX7219_BUFFER_MULTIPLIER 24
#endif
#if !defined(MAX7219_LED_TEST) && !defined(MAX7219_LED_ITERATE) && !defined(MAX7219_LED_DANCE) && !defined(MAX7219_LED_FONTTEST) && !defined(MAX7219_LED_CLUEBOARD) && !defined(MAX7219_LED_KONAMI) && !defined(MAX7219_LED_QMK_POWERED) && !defined(MAX7219_DRAWING_TOY_MODE) && !defined(MAX7219_LED_CUSTOM)
# define MAX7219_QMK_POWERED
#endif
// Configure our MAX7219's
#define MAX_BYTES MAX7219_CONTROLLERS * 2
#define LED_COUNT MAX7219_CONTROLLERS * 64
#define MAX7219_BUFFER_SIZE MAX7219_CONTROLLERS*MAX7219_BUFFER_MULTIPLIER
// Opcodes for the MAX7219
#define OP_DECODEMODE 9
#define OP_INTENSITY 10
#define OP_SCANLIMIT 11
#define OP_SHUTDOWN 12
#define OP_DISPLAYTEST 15
// Datastructures
extern uint8_t max7219_led_a[8][MAX7219_BUFFER_SIZE];
extern bool max7219_led_scrolling;
// Functions
void max7219_write(int device_num, volatile uint8_t opcode, volatile uint8_t data);
void max7219_write_all(void);
void max7219_write_frame(void);
void max7219_clear_display(void);
void max7219_display_test(int device_num, bool enabled);
void max7219_init(void);
void max7219_message_sign(uint8_t message[][6], size_t message_len);
void max7219_message_sign_task(bool loop_message);
void max7219_set_decode_mode(int device_num, int mode);
void max7219_set_intensity(int device_num, int intensity);
void max7219_set_led(int row, int column, bool state);
void max7219_set_all_leds(uint8_t led_matrix[LED_COUNT]);
void max7219_set_scan_limit(int device_num, int limit);
void max7219_shutdown(int device_num, bool is_in_shutdown);
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