/**

  * $Id: packet.h,v 1.7 2007-01-31 10:58:42 nkeynes Exp $

  *

  * 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_IDENTIFY 0x11

 #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

 #define IDE_READ_MODE1 0x20

 #define IDE_READ_RAW   0x30