sbpcd.h

powerpc内核 mpc8241芯片 linux系统下cdrom驱动程序

#define READ_SC	0x04	/* "subchannel info": 96 bytes per frame */
#define READ_AU	0x08	/* "audio frame": 2352 bytes per frame */

/*
 * sense_byte:
 *
 *          values: 00
 *                  01
 *                  81
 *                  82 "raw audio" mode
 *                  xx from infobuf[0] after 85 00 00 00 00 00 00
 */

/* audio status (bin) */
#define aud_00 0x00 /* Audio status byte not supported or not valid */
#define audx11 0x0b /* Audio play operation in progress             */
#define audx12 0x0c /* Audio play operation paused                  */
#define audx13 0x0d /* Audio play operation successfully completed  */
#define audx14 0x0e /* Audio play operation stopped due to error    */
#define audx15 0x0f /* No current audio status to return            */
/* audio status (bcd) */
#define aud_11 0x11 /* Audio play operation in progress             */
#define aud_12 0x12 /* Audio play operation paused                  */
#define aud_13 0x13 /* Audio play operation successfully completed  */
#define aud_14 0x14 /* Audio play operation stopped due to error    */
#define aud_15 0x15 /* No current audio status to return            */

/*
 * highest allowed drive number (MINOR+1)
 */
#define NR_SBPCD	4

/*
 * we try to never disable interrupts - seems to work
 */
#define SBPCD_DIS_IRQ	0

/*
 * "write byte to port"
 */
#define OUT(x,y)	outb(y,x)

/*==========================================================================*/

#define MIXER_addr SOUND_BASE+4 /* sound card's address register */
#define MIXER_data SOUND_BASE+5 /* sound card's data register */
#define MIXER_CD_Volume	0x28	/* internal SB Pro register address */

/*==========================================================================*/

#define MAX_TRACKS	99

#define ERR_DISKCHANGE 615

/*==========================================================================*/
/*
 * To make conversions easier (machine dependent!)
 */
typedef union _msf
{
	u_int n;
	u_char c[4];
} MSF;

typedef union _blk
{
	u_int n;
	u_char c[4];
} BLK;

/*==========================================================================*/

/*============================================================================
==============================================================================

COMMAND SET of "old" drives like CR-521, CR-522
               (the CR-562 family is different):

No.	Command			       Code
--------------------------------------------

Drive Commands:
 1	Seek				01	
 2	Read Data			02
 3	Read XA-Data			03
 4	Read Header			04
 5	Spin Up				05
 6	Spin Down			06
 7	Diagnostic			07
 8	Read UPC			08
 9	Read ISRC			09
10	Play Audio			0A
11	Play Audio MSF			0B
12	Play Audio Track/Index		0C

Status Commands:
13	Read Status			81	
14	Read Error			82
15	Read Drive Version		83
16	Mode Select			84
17	Mode Sense			85
18	Set XA Parameter		86
19	Read XA Parameter		87
20	Read Capacity			88
21	Read SUB_Q			89
22	Read Disc Code			8A
23	Read Disc Information		8B
24	Read TOC			8C
25	Pause/Resume			8D
26	Read Packet			8E
27	Read Path Check			00
 
 
all numbers (lba, msf-bin, msf-bcd, counts) to transfer high byte first

mnemo     7-byte command        #bytes response (r0...rn)
________ ____________________  ____ 

Read Status:
status:  81.                    (1)  one-byte command, gives the main
                                                          status byte
Read Error:
check1:  82 00 00 00 00 00 00.  (6)  r1: audio status

Read Packet:
check2:  8e xx 00 00 00 00 00. (xx)  gets xx bytes response, relating
                                        to commands 01 04 05 07 08 09

Play Audio:
play:    0a ll-bb-aa nn-nn-nn.  (0)  play audio, ll-bb-aa: starting block (lba),
                                                 nn-nn-nn: #blocks
Play Audio MSF:
         0b mm-ss-ff mm-ss-ff   (0)  play audio from/to

Play Audio Track/Index:
         0c ...

Pause/Resume:
pause:   8d pr 00 00 00 00 00.  (0)  pause (pr=00) 
                                     resume (pr=80) audio playing

Mode Select:
         84 00 nn-nn ??.?? 00   (0)  nn-nn: 2048 or 2340
                                     possibly defines transfer size

set_vol: 84 83 00 00 sw le 00.  (0)  sw(itch): lrxxxxxx (off=1)
                                     le(vel): min=0, max=FF, else half
				     (firmware 2.11)

Mode Sense:
get_vol: 85 03 00 00 00 00 00.  (2)  tell current audio volume setting

Read Disc Information:
tocdesc: 8b 00 00 00 00 00 00.  (6)  read the toc descriptor ("msf-bin"-format)

Read TOC:
tocent:  8c fl nn 00 00 00 00.  (8)  read toc entry #nn
                                       (fl=0:"lba"-, =2:"msf-bin"-format)

Read Capacity:
capacit: 88 00 00 00 00 00 00.  (5)  "read CD-ROM capacity"


Read Path Check:
ping:    00 00 00 00 00 00 00.  (2)  r0=AA, r1=55
                                     ("ping" if the drive is connected)

Read Drive Version:
ident:   83 00 00 00 00 00 00. (12)  gives "MATSHITAn.nn" 
                                     (n.nn = 2.01, 2.11., 3.00, ...)

Seek:
seek:    01 00 ll-bb-aa 00 00.  (0)  
seek:    01 02 mm-ss-ff 00 00.  (0)  

Read Data:
read:    02 xx-xx-xx nn-nn fl.  (?)  read nn-nn blocks of 2048 bytes,
                                     starting at block xx-xx-xx  
                                     fl=0: "lba"-, =2:"msf-bcd"-coded xx-xx-xx

Read XA-Data:
read:    03 xx-xx-xx nn-nn fl.  (?)  read nn-nn blocks of 2340 bytes, 
                                     starting at block xx-xx-xx
                                     fl=0: "lba"-, =2:"msf-bcd"-coded xx-xx-xx

Read SUB_Q:
         89 fl 00 00 00 00 00. (13)  r0: audio status, r4-r7: lba/msf, 
                                       fl=0: "lba", fl=2: "msf"

Read Disc Code:
         8a 00 00 00 00 00 00. (14)  possibly extended "check condition"-info

Read Header:
         04 00 ll-bb-aa 00 00.  (0)   4 bytes response with "check2"
         04 02 mm-ss-ff 00 00.  (0)   4 bytes response with "check2"

Spin Up:
         05 00 ll-bb-aa 00 00.  (0)  possibly implies a "seek"

Spin Down:
         06 ...

Diagnostic:
         07 00 ll-bb-aa 00 00.  (2)   2 bytes response with "check2"
         07 02 mm-ss-ff 00 00.  (2)   2 bytes response with "check2"

Read UPC:
         08 00 ll-bb-aa 00 00. (16)  
         08 02 mm-ss-ff 00 00. (16)  

Read ISRC:
         09 00 ll-bb-aa 00 00. (15)  15 bytes response with "check2"
         09 02 mm-ss-ff 00 00. (15)  15 bytes response with "check2"

Set XA Parameter:
         86 ...

Read XA Parameter:
         87 ...

==============================================================================
============================================================================*/

/*
 * commands
 *
 * CR-52x:      CMD0_
 * CR-56x:      CMD1_
 * CD200:       CMD2_
 * LCS-7260:    CMDL_
 * TEAC CD-55A: CMDT_
 * ECS-AT:      CMDV_
 */
#define CMD1_RESET	0x0a
#define CMD2_RESET	0x01
#define CMDT_RESET	0xc0

#define CMD1_LOCK_CTL	0x0c
#define CMD2_LOCK_CTL	0x1e
#define CMDT_LOCK_CTL	CMD2_LOCK_CTL
#define CMDL_LOCK_CTL	0x0e
#define CMDV_LOCK_CTL	CMDL_LOCK_CTL

#define CMD1_TRAY_CTL	0x07
#define CMD2_TRAY_CTL	0x1b
#define CMDT_TRAY_CTL	CMD2_TRAY_CTL
#define CMDL_TRAY_CTL	0x0d
#define CMDV_TRAY_CTL	CMDL_TRAY_CTL

#define CMD1_MULTISESS	0x8d
#define CMDL_MULTISESS	0x8c
#define CMDV_MULTISESS	CMDL_MULTISESS

#define CMD1_SUBCHANINF	0x11
#define CMD2_SUBCHANINF	0x??

#define CMD1_ABORT	0x08
#define CMD2_ABORT	0x08
#define CMDT_ABORT	0x08

#define CMD2_x02	0x02

#define CMD2_SETSPEED	0xda

#define CMD0_PATH_CHECK	0x00
#define CMD1_PATH_CHECK	0x???
#define CMD2_PATH_CHECK	0x???
#define CMDT_PATH_CHECK	0x???
#define CMDL_PATH_CHECK	CMD0_PATH_CHECK
#define CMDV_PATH_CHECK	CMD0_PATH_CHECK

#define CMD0_SEEK	0x01
#define CMD1_SEEK	CMD0_SEEK
#define CMD2_SEEK	0x2b
#define CMDT_SEEK	CMD2_SEEK
#define CMDL_SEEK	CMD0_SEEK
#define CMDV_SEEK	CMD0_SEEK

#define CMD0_READ	0x02
#define CMD1_READ	0x10
#define CMD2_READ	0x28
#define CMDT_READ	CMD2_READ
#define CMDL_READ	CMD0_READ
#define CMDV_READ	CMD0_READ

#define CMD0_READ_XA	0x03
#define CMD2_READ_XA	0xd4
#define CMD2_READ_XA2	0xd5
#define CMDL_READ_XA	CMD0_READ_XA /* really ?? */
#define CMDV_READ_XA	CMD0_READ_XA

#define CMD0_READ_HEAD	0x04

#define CMD0_SPINUP	0x05
#define CMD1_SPINUP	0x02
#define CMD2_SPINUP	CMD2_TRAY_CTL
#define CMDL_SPINUP	CMD0_SPINUP
#define CMDV_SPINUP	CMD0_SPINUP

#define CMD0_SPINDOWN	0x06 /* really??? */
#define CMD1_SPINDOWN	0x06
#define CMD2_SPINDOWN	CMD2_TRAY_CTL
#define CMDL_SPINDOWN	0x0d
#define CMDV_SPINDOWN	CMD0_SPINDOWN

#define CMD0_DIAG	0x07

#define CMD0_READ_UPC	0x08
#define CMD1_READ_UPC	0x88
#define CMD2_READ_UPC	0x???
#define CMDL_READ_UPC	CMD0_READ_UPC
#define CMDV_READ_UPC	0x8f

#define CMD0_READ_ISRC	0x09

#define CMD0_PLAY	0x0a
#define CMD1_PLAY	0x???
#define CMD2_PLAY	0x???
#define CMDL_PLAY	CMD0_PLAY
#define CMDV_PLAY	CMD0_PLAY

#define CMD0_PLAY_MSF	0x0b
#define CMD1_PLAY_MSF	0x0e
#define CMD2_PLAY_MSF	0x47
#define CMDT_PLAY_MSF	CMD2_PLAY_MSF
#define CMDL_PLAY_MSF	0x???

#define CMD0_PLAY_TI	0x0c
#define CMD1_PLAY_TI	0x0f

#define CMD0_STATUS	0x81
#define CMD1_STATUS	0x05
#define CMD2_STATUS	0x00
#define CMDT_STATUS	CMD2_STATUS
#define CMDL_STATUS	CMD0_STATUS
#define CMDV_STATUS	CMD0_STATUS
#define CMD2_SEEK_LEADIN 0x00

#define CMD0_READ_ERR	0x82
#define CMD1_READ_ERR	CMD0_READ_ERR
#define CMD2_READ_ERR	0x03
#define CMDT_READ_ERR	CMD2_READ_ERR /* get audio status */
#define CMDL_READ_ERR	CMD0_READ_ERR
#define CMDV_READ_ERR	CMD0_READ_ERR

#define CMD0_READ_VER	0x83
#define CMD1_READ_VER	CMD0_READ_VER
#define CMD2_READ_VER	0x12
#define CMDT_READ_VER	CMD2_READ_VER /* really ?? */
#define CMDL_READ_VER	CMD0_READ_VER
#define CMDV_READ_VER	CMD0_READ_VER

#define CMD0_SETMODE	0x84
#define CMD1_SETMODE	0x09
#define CMD2_SETMODE	0x55
#define CMDT_SETMODE	CMD2_SETMODE
#define CMDL_SETMODE	CMD0_SETMODE

#define CMD0_GETMODE	0x85
#define CMD1_GETMODE	0x84
#define CMD2_GETMODE	0x5a
#define CMDT_GETMODE	CMD2_GETMODE
#define CMDL_GETMODE	CMD0_GETMODE

#define CMD0_SET_XA	0x86

#define CMD0_GET_XA	0x87

#define CMD0_CAPACITY	0x88
#define CMD1_CAPACITY	0x85
#define CMD2_CAPACITY	0x25
#define CMDL_CAPACITY	CMD0_CAPACITY /* missing in some firmware versions */

#define CMD0_READSUBQ	0x89
#define CMD1_READSUBQ	0x87
#define CMD2_READSUBQ	0x42
#define CMDT_READSUBQ	CMD2_READSUBQ
#define CMDL_READSUBQ	CMD0_READSUBQ
#define CMDV_READSUBQ	CMD0_READSUBQ

#define CMD0_DISKCODE	0x8a

#define CMD0_DISKINFO	0x8b
#define CMD1_DISKINFO	CMD0_DISKINFO
#define CMD2_DISKINFO	0x43
#define CMDT_DISKINFO	CMD2_DISKINFO
#define CMDL_DISKINFO	CMD0_DISKINFO
#define CMDV_DISKINFO	CMD0_DISKINFO

#define CMD0_READTOC	0x8c
#define CMD1_READTOC	CMD0_READTOC
#define CMD2_READTOC	0x???
#define CMDL_READTOC	CMD0_READTOC
#define CMDV_READTOC	CMD0_READTOC

#define CMD0_PAU_RES	0x8d
#define CMD1_PAU_RES	0x0d
#define CMD2_PAU_RES	0x4b
#define CMDT_PAUSE	CMD2_PAU_RES
#define CMDL_PAU_RES	CMD0_PAU_RES
#define CMDV_PAUSE	CMD0_PAU_RES

#define CMD0_PACKET	0x8e
#define CMD1_PACKET	CMD0_PACKET
#define CMD2_PACKET	0x???
#define CMDL_PACKET	CMD0_PACKET
#define CMDV_PACKET	0x???

/*==========================================================================*/
/*==========================================================================*/
#endif /* _LINUX_SBPCD_H */
/*==========================================================================*/
/*
 * Overrides for Emacs so that we follow Linus's tabbing style.
 * Emacs will notice this stuff at the end of the file and automatically
 * adjust the settings for this buffer only.  This must remain at the end
 * of the file. 
 * ---------------------------------------------------------------------------
 * Local variables:
 * c-indent-level: 8
 * c-brace-imaginary-offset: 0
 * c-brace-offset: -8
 * c-argdecl-indent: 8
 * c-label-offset: -8
 * c-continued-statement-offset: 8
 * c-continued-brace-offset: 0
 * End:
 */