/**

 * $Id$

 *

 * This file defines the command codes and any other flags used by the 

 * GD-Rom ATAPI packet commands.

 *

 * Copyright (c) 2005 Nathan Keynes.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 */

/**

 * Valid command codes (hex):

 * 00  Test 

 * 10

 * 11  Inquiry

 * 12

 * 13  Request Sense

 * 14  Read TOC

 * 15  Read session info

 * 16

 * 20

 * 21

 * 22

 * 30  Read CD

 * 31

 * 40  Read Status ?

 * 50

 * 51

 * 52

 * 53

 * 54

 * 55

 * 70  

 * 71

 * 72

 * 73

 * FE

 */

#define PKT_CMD_TEST_READY 0x00

#define PKT_CMD_MODE_SENSE 0x11

#define PKT_CMD_MODE_SELECT 0x12

#define PKT_CMD_SENSE    0x13

#define PKT_CMD_READ_TOC 0x14

#define PKT_CMD_SESSION_INFO 0x15

#define PKT_CMD_READ_SECTOR 0x30

#define PKT_CMD_PLAY_AUDIO  0x20 /* ? */

#define PKT_CMD_STATUS  0x40

#define PKT_CMD_SPIN_UP 0x70 /* ??? */

#define PKT_CMD_71      0x71 /* ??? seems to return garbage */

#define PKT_ERR_OK        0x0000

#define PKT_ERR_NODISC    0x3A02

#define PKT_ERR_BADCMD    0x2005

#define PKT_ERR_BADFIELD  0x2405

#define PKT_ERR_BADREAD   0x3002

#define PKT_ERR_BADREADMODE 0x6405  /* Illegal mode for this track */

#define PKT_ERR_RESET     0x2906

/* Parse CD read */

#define READ_CD_MODE(x)    ((x)&0x0E)

#define READ_CD_MODE_ANY   0x00

#define READ_CD_MODE_CDDA  0x02 

#define READ_CD_MODE_1     0x04

#define READ_CD_MODE_2     0x06

#define READ_CD_MODE_2_FORM_1 0x08

#define READ_CD_MODE_2_FORM_2 0x0A

#define READ_CD_CHANNELS(x) ((x)&0xF0)

#define READ_CD_HEADER(x)  ((x)&0x80)

#define READ_CD_SUBHEAD(x) ((x)&0x40)

#define READ_CD_DATA(x)    ((x)&0x20)

#define READ_CD_RAW(x)     ((x)&0x10)