gbprinter/printer.h at master · mmuszkow/gbprinter · GitHub

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#ifndef __PRINTER_H__
#define __PRINTER_H__

#include <gb/gb.h>

// commands
#define PRINTER_CMD_INIT   0x01
#define PRINTER_CMD_PRINT  0x02
#define PRINTER_CMD_DATA   0x04
#define PRINTER_CMD_BREAK  0x08
#define PRINTER_CMD_STATUS 0x0F

// status flags
#define PRINTER_STATUS_CHECKSUM_INVALID 0x01
#define PRINTER_STATUS_PRINTING         0x02
#define PRINTER_STATUS_DATA_FULL        0x04
#define PRINTER_STATUS_UNPROCESSED_DATA 0x08
#define PRINTER_STATUS_PACKET_ERROR     0x10
#define PRINTER_STATUS_PAPER_JAM        0x20
#define PRINTER_STATUS_OTHER_ERROR      0x40
#define PRINTER_STATUS_LOW_BATTERY      0x80

// statuses considered an error
#define PRINTER_STATUS_ERROR            0b01110101
#define PRINTER_STATUS_ERROR_EOF        0b01110001

#define COMPRESSION_NONE                0x00
#define COMPRESSION_RLE                 0x01

INT8 print(char text[14][20]);
void generate_pattern(UINT8* data, UINT8 line);

#endif