#ifndef _PICGA_H
#define _PICGA_H

#define SPI_IDLE        0x00

// System control
#define SPI_CLS         0x01
#define SPI_CLUT        0x02
#define SPI_ENCOPPER    0x03
#define SPI_DISCOPPER   0x04
#define SPI_COPPERFILL  0x05
#define SPI_SCROLL      0x06
#define SPI_COPY        0x07

// Basic drawing
#define SPI_PLOT        0x11
#define SPI_DRAW        0x12
#define SPI_COLOR       0x13
#define SPI_RECTANGLE   0x14
#define SPI_CIRCLE      0x15

// Text commands
#define SPI_LOCATE      0x80
#define SPI_FONT        0x81
#define SPI_PRINT       0x82
#define SPI_PRINTAT     0x83
#define SPI_PUTCH       0x84
#define SPI_PUTCHAR     0x85
#define SPI_FGCOLOR     0x86
#define SPI_BGCOLOR     0x87

#define FONT_SINCLAIR 0x00
#define FONT_TOPAZ 0x01

#define UP 0
#define DOWN 1
#define LEFT 2
#define RIGHT 3

struct coord2 {
    unsigned short x;
    unsigned short y;
}__attribute__((packed));

struct coord4 {
    unsigned short x1;
    unsigned short y1;
    unsigned short x2;
    unsigned short y2;
}__attribute__((packed));

struct coord6 {
    unsigned short x1;
    unsigned short y1;
    unsigned short x2;
    unsigned short y2;
    unsigned short x3;
    unsigned short y3;
}__attribute__((packed));

struct intval {
    unsigned short value;
}__attribute__((packed));

struct rectangle {
    unsigned short x1;
    unsigned short y1;
    unsigned short x2;
    unsigned short y2;
    unsigned fill:1;
    unsigned char dither;
}__attribute__((packed));

struct circle {
    unsigned short x;
    unsigned short y;
    unsigned short radius;
    unsigned fill:1;
}__attribute__((packed));

struct charval {
    unsigned char value;
}__attribute__((packed));

#ifdef KERNEL
#include "conf.h"

extern const struct devspec picgadevs[];

extern void picga_command(unsigned char cmd, unsigned char len, void *data);
extern int picga_open(dev_t dev, int flag, int mode);
extern int picga_close(dev_t dev, int flag, int mode);
extern int picga_read(dev_t dev, struct uio *uio, int flag);
extern int picga_write(dev_t dev, struct uio *uio, int flag);
extern int picga_ioctl(dev_t dev, register u_int cmd, caddr_t addr, int flag);
#endif

#define PICGA_CLS         _IO('g', 1)

#endif