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/*

 * Definitions for a GoldStar R420 CD-ROM interface

 *

 *   Copyright (C) 1995  Oliver Raupach <raupach@nwfs1.rz.fh-hannover.de>

 *                       Eberhard Moenkeberg <emoenke@gwdg.de>

 *

 *  Published under the GPL.

 *

 */

/* The Interface Card default address is 0x340. This will work for most

   applications. Address selection is accomplished by jumpers PN801-1 to

   PN801-4 on the GoldStar Interface Card.

   Appropriate settings are: 0x300, 0x310, 0x320, 0x330, 0x340, 0x350, 0x360

   0x370, 0x380, 0x390, 0x3A0, 0x3B0, 0x3C0, 0x3D0, 0x3E0, 0x3F0             */

/* insert here the I/O port address */

#define GSCD_BASE_ADDR          0x340

/* change this to set the dma-channel */

#define GSCD_DMA_CHANNEL        3                  /* not used */ 

/************** nothing to set up below here *********************/

/* port access macro */

#define GSCDPORT(x)             (gscd_port + (x))

/*

 * commands

 * the lower nibble holds the command length

 */

#define CMD_STATUS     0x01

#define CMD_READSUBQ   0x02 /* 1: ?, 2: UPC, 5: ? */

#define CMD_SEEK       0x05 /* read_mode M-S-F */

#define CMD_READ       0x07 /* read_mode M-S-F nsec_h nsec_l */

#define CMD_RESET      0x11

#define CMD_SETMODE    0x15

#define CMD_PLAY       0x17 /* M-S-F M-S-F */

#define CMD_LOCK_CTL   0x22 /* 0: unlock, 1: lock */

#define CMD_IDENT      0x31

#define CMD_SETSPEED   0x32 /* 0: auto */ /* ??? */

#define CMD_GETMODE    0x41

#define CMD_PAUSE      0x51

#define CMD_READTOC    0x61

#define CMD_DISKINFO   0x71

#define CMD_TRAY_CTL   0x81

/*

 * disk_state:

 */

#define ST_PLAYING      0x80

#define ST_UNLOCKED     0x40

#define ST_NO_DISK      0x20

#define ST_DOOR_OPEN    0x10

#define ST_x08  0x08

#define ST_x04  0x04

#define ST_INVALID      0x02

#define ST_x01  0x01

/*

 * cmd_type:

 */

#define TYPE_INFO       0x01

#define TYPE_DATA       0x02

/*

 * read_mode:

 */

#define MOD_POLLED      0x80

#define MOD_x08 0x08

#define MOD_RAW 0x04

#define READ_DATA(port, buf, nr) insb(port, buf, nr)

#define SET_TIMER(func, jifs) \

        ((mod_timer(&gscd_timer, jiffies + jifs)), \

        (gscd_timer.function = func))

#define CLEAR_TIMER             del_timer_sync(&gscd_timer)

#define MAX_TRACKS              104

struct msf {

        unsigned char   min;

        unsigned char   sec;

        unsigned char   frame;

};

struct gscd_Play_msf {

        struct msf      start;

        struct msf      end;

};

struct gscd_DiskInfo {

        unsigned char   first;

        unsigned char   last;

        struct msf      diskLength;

        struct msf      firstTrack;

};

struct gscd_Toc {

        unsigned char   ctrl_addr;

        unsigned char   track;

        unsigned char   pointIndex;

        struct msf      trackTime;

        struct msf      diskTime;

};