driver_max7219.h

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#ifndef DRIVER_MAX7219_H
#define DRIVER_MAX7219_H
 
#include <stdio.h>
#include <stdint.h>
#include <string.h>
 
#ifdef __cplusplus
extern "C"{
#endif



#ifndef MAX7219_MAX_CASCADE_SIZE
    #define MAX7219_MAX_CASCADE_SIZE 128        
#endif



typedef enum
{
    MAX7219_SEGMENT_A  = (1 << 6),        
    MAX7219_SEGMENT_B  = (1 << 5),        
    MAX7219_SEGMENT_C  = (1 << 4),        
    MAX7219_SEGMENT_D  = (1 << 3),        
    MAX7219_SEGMENT_E  = (1 << 2),        
    MAX7219_SEGMENT_F  = (1 << 1),        
    MAX7219_SEGMENT_G  = (1 << 0),        
    MAX7219_SEGMENT_DP = (1 << 7),        
} max7219_segment_t;

typedef enum
{
    MAX7219_CODEB_FONT_0     = 0x00,        
    MAX7219_CODEB_FONT_1     = 0x01,        
    MAX7219_CODEB_FONT_2     = 0x02,        
    MAX7219_CODEB_FONT_3     = 0x03,        
    MAX7219_CODEB_FONT_4     = 0x04,        
    MAX7219_CODEB_FONT_5     = 0x05,        
    MAX7219_CODEB_FONT_6     = 0x06,        
    MAX7219_CODEB_FONT_7     = 0x07,        
    MAX7219_CODEB_FONT_8     = 0x08,        
    MAX7219_CODEB_FONT_9     = 0x09,        
    MAX7219_CODEB_FONT_LINE  = 0x0A,        
    MAX7219_CODEB_FONT_E     = 0x0B,        
    MAX7219_CODEB_FONT_H     = 0x0C,        
    MAX7219_CODEB_FONT_L     = 0x0D,        
    MAX7219_CODEB_FONT_P     = 0x0E,        
    MAX7219_CODEB_FONT_BLACK = 0x0F,        
} max7219_codeb_font_t;

typedef enum
{
    MAX7219_NO_DECODE_FONT_0     = 0x7E,        
    MAX7219_NO_DECODE_FONT_1     = 0x30,        
    MAX7219_NO_DECODE_FONT_2     = 0x6D,        
    MAX7219_NO_DECODE_FONT_3     = 0x79,        
    MAX7219_NO_DECODE_FONT_4     = 0x33,        
    MAX7219_NO_DECODE_FONT_5     = 0x5B,        
    MAX7219_NO_DECODE_FONT_6     = 0x5F,        
    MAX7219_NO_DECODE_FONT_7     = 0x70,        
    MAX7219_NO_DECODE_FONT_8     = 0x7F,        
    MAX7219_NO_DECODE_FONT_9     = 0x7B,        
    MAX7219_NO_DECODE_FONT_LINE  = 0x01,         
    MAX7219_NO_DECODE_FONT_E     = 0x4F,        
    MAX7219_NO_DECODE_FONT_H     = 0x37,        
    MAX7219_NO_DECODE_FONT_L     = 0x0E,        
    MAX7219_NO_DECODE_FONT_P     = 0x67,        
    MAX7219_NO_DECODE_FONT_BLACK = 0x00,        
} max7219_no_decode_font_t;

typedef enum
{
    MAX7219_SCAN_LIMIT_DIGIT_0_0 = 0x00,        
    MAX7219_SCAN_LIMIT_DIGIT_0_1 = 0x01,        
    MAX7219_SCAN_LIMIT_DIGIT_0_2 = 0x02,        
    MAX7219_SCAN_LIMIT_DIGIT_0_3 = 0x03,        
    MAX7219_SCAN_LIMIT_DIGIT_0_4 = 0x04,        
    MAX7219_SCAN_LIMIT_DIGIT_0_5 = 0x05,        
    MAX7219_SCAN_LIMIT_DIGIT_0_6 = 0x06,        
    MAX7219_SCAN_LIMIT_DIGIT_0_7 = 0x07,        
} max7219_scan_limit_t;

typedef enum
{
    MAX7219_INTENSITY_1_32  = 0x00,        
    MAX7219_INTENSITY_3_32  = 0x01,        
    MAX7219_INTENSITY_5_32  = 0x02,        
    MAX7219_INTENSITY_7_32  = 0x03,        
    MAX7219_INTENSITY_9_32  = 0x04,        
    MAX7219_INTENSITY_11_32 = 0x05,        
    MAX7219_INTENSITY_13_32 = 0x06,        
    MAX7219_INTENSITY_15_32 = 0x07,        
    MAX7219_INTENSITY_17_32 = 0x08,        
    MAX7219_INTENSITY_19_32 = 0x09,        
    MAX7219_INTENSITY_21_32 = 0x0A,        
    MAX7219_INTENSITY_23_32 = 0x0B,        
    MAX7219_INTENSITY_25_32 = 0x0C,        
    MAX7219_INTENSITY_27_32 = 0x0D,        
    MAX7219_INTENSITY_29_32 = 0x0E,        
    MAX7219_INTENSITY_31_32 = 0x0F,        
} max7219_intensity_t;

typedef enum
{
    MAX7219_MODE_SHUT_DOWN = 0x00,        
    MAX7219_MODE_NORMAL    = 0x01,        
} max7219_mode_t;

typedef enum
{
    MAX7219_DISPLAY_TEST_MODE_OFF = 0x00,        
    MAX7219_DISPLAY_TEST_MODE_ON  = 0x01,        
} max7219_display_test_mode_t;

typedef enum
{
    MAX7219_DECODE_CODEB_DIGITS_NONE = 0x00,        
    MAX7219_DECODE_CODEB_DIGITS_0    = 0x01,        
    MAX7219_DECODE_CODEB_DIGITS_3_0  = 0x0F,        
    MAX7219_DECODE_CODEB_DIGITS_7_0  = 0xFF,        
} max7219_decode_t;

typedef enum
{
    MAX7219_DIGITAL_0 = 0x01,        
    MAX7219_DIGITAL_1 = 0x02,        
    MAX7219_DIGITAL_2 = 0x03,        
    MAX7219_DIGITAL_3 = 0x04,        
    MAX7219_DIGITAL_4 = 0x05,        
    MAX7219_DIGITAL_5 = 0x06,        
    MAX7219_DIGITAL_6 = 0x07,        
    MAX7219_DIGITAL_7 = 0x08,        
} max7219_digital_t;



typedef enum
{
    MAX7219_CASCADE_COMMAND_CASCADE      = 0x00,        
    MAX7219_CASCADE_COMMAND_DIGIT_0      = 0x01,        
    MAX7219_CASCADE_COMMAND_DIGIT_1      = 0x02,        
    MAX7219_CASCADE_COMMAND_DIGIT_2      = 0x03,        
    MAX7219_CASCADE_COMMAND_DIGIT_3      = 0x04,        
    MAX7219_CASCADE_COMMAND_DIGIT_4      = 0x05,        
    MAX7219_CASCADE_COMMAND_DIGIT_5      = 0x06,        
    MAX7219_CASCADE_COMMAND_DIGIT_6      = 0x07,        
    MAX7219_CASCADE_COMMAND_DIGIT_7      = 0x08,        
    MAX7219_CASCADE_COMMAND_DECODE       = 0x09,        
    MAX7219_CASCADE_COMMAND_INTENSITY    = 0x0A,        
    MAX7219_CASCADE_COMMAND_SCAN_LIMIT   = 0x0B,        
    MAX7219_CASCADE_COMMAND_SHUT_DOWN    = 0x0C,        
    MAX7219_CASCADE_COMMAND_DISPLAY_TEST = 0x0F,        
} max7219_cascade_command_t;

typedef struct max7219_cascade_s
{
    max7219_cascade_command_t command;        
    uint8_t data;                             
} max7219_cascade_t;



typedef struct max7219_handle_s
{
    uint8_t (*spi_init)(void);                                            
    uint8_t (*spi_deinit)(void);                                          
    uint8_t (*spi_write_cmd)(uint8_t *buf, uint16_t len);                 
    uint8_t (*spi_write)(uint8_t reg, uint8_t *buf, uint16_t len);        
    void (*delay_ms)(uint32_t us);                                        
    void (*debug_print)(const char *const fmt, ...);                      
    uint8_t buf[MAX7219_MAX_CASCADE_SIZE * 2];                            
    uint8_t inited;                                                       
} max7219_handle_t;

typedef struct max7219_info_s
{
    char chip_name[32];                
    char manufacturer_name[32];        
    char interface[8];                 
    float supply_voltage_min_v;        
    float supply_voltage_max_v;        
    float max_current_ma;              
    float temperature_min;             
    float temperature_max;             
    uint32_t driver_version;           
} max7219_info_t;



#define DRIVER_MAX7219_LINK_INIT(HANDLE, STRUCTURE)          memset(HANDLE, 0, sizeof(STRUCTURE))

#define DRIVER_MAX7219_LINK_SPI_INIT(HANDLE, FUC)            (HANDLE)->spi_init = FUC

#define DRIVER_MAX7219_LINK_SPI_DEINIT(HANDLE, FUC)          (HANDLE)->spi_deinit = FUC

#define DRIVER_MAX7219_LINK_SPI_WRITE(HANDLE, FUC)           (HANDLE)->spi_write = FUC

#define DRIVER_MAX7219_LINK_SPI_WRITE_COMMAND(HANDLE, FUC)   (HANDLE)->spi_write_cmd = FUC

#define DRIVER_MAX7219_LINK_DELAY_MS(HANDLE, FUC)            (HANDLE)->delay_ms = FUC

#define DRIVER_MAX7219_LINK_DEBUG_PRINT(HANDLE, FUC)         (HANDLE)->debug_print = FUC



uint8_t max7219_info(max7219_info_t *info);

uint8_t max7219_init(max7219_handle_t *handle);

uint8_t max7219_deinit(max7219_handle_t *handle);

uint8_t max7219_set_display(max7219_handle_t *handle, max7219_digital_t digital, uint8_t data);

uint8_t max7219_set_matrix(max7219_handle_t *handle, uint8_t matrix[8]);

uint8_t max7219_set_decode(max7219_handle_t *handle, max7219_decode_t decode);

uint8_t max7219_set_mode(max7219_handle_t *handle, max7219_mode_t mode);

uint8_t max7219_set_mode(max7219_handle_t *handle, max7219_mode_t mode);

uint8_t max7219_set_display_test_mode(max7219_handle_t *handle, max7219_display_test_mode_t mode);

uint8_t max7219_set_intensity(max7219_handle_t *handle, max7219_intensity_t intensity);

uint8_t max7219_set_scan_limit(max7219_handle_t *handle, max7219_scan_limit_t limit);



uint8_t max7219_set_cascade(max7219_handle_t *handle, max7219_cascade_t *cascade, uint16_t len);



uint8_t max7219_set_reg(max7219_handle_t *handle, uint8_t reg, uint8_t *buf, uint16_t len);


 
#ifdef __cplusplus
}
#endif
 
#endif