[linux-2.6-block.git] / drivers / ide / ide-cd.h

/*
 *  Copyright (C) 1996-98  Erik Andersen
 *  Copyright (C) 1998-2000 Jens Axboe
 */
#ifndef _IDE_CD_H
#define _IDE_CD_H

#include <linux/cdrom.h>
#include <asm/byteorder.h>

#define IDECD_DEBUG_LOG		0

#if IDECD_DEBUG_LOG
#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
#else
#define ide_debug_log(lvl, fmt, args...) do {} while (0)
#endif

#define ATAPI_WAIT_WRITE_BUSY	(10 * HZ)

/************************************************************************/

#define SECTOR_BITS 		9
#ifndef SECTOR_SIZE
#define SECTOR_SIZE		(1 << SECTOR_BITS)
#endif
#define SECTORS_PER_FRAME	(CD_FRAMESIZE >> SECTOR_BITS)
#define SECTOR_BUFFER_SIZE	(CD_FRAMESIZE * 32)

/* Capabilities Page size including 8 bytes of Mode Page Header */
#define ATAPI_CAPABILITIES_PAGE_SIZE		(8 + 20)
#define ATAPI_CAPABILITIES_PAGE_PAD_SIZE	4

/* Structure of a MSF cdrom address. */
struct atapi_msf {
	byte reserved;
	byte minute;
	byte second;
	byte frame;
};

/* Space to hold the disk TOC. */
#define MAX_TRACKS 99
struct atapi_toc_header {
	unsigned short toc_length;
	byte first_track;
	byte last_track;
};

struct atapi_toc_entry {
	byte reserved1;
#if defined(__BIG_ENDIAN_BITFIELD)
	__u8 adr     : 4;
	__u8 control : 4;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
	__u8 control : 4;
	__u8 adr     : 4;
#else
#error "Please fix <asm/byteorder.h>"
#endif
	byte track;
	byte reserved2;
	union {
		unsigned lba;
		struct atapi_msf msf;
	} addr;
};

struct atapi_toc {
	int    last_session_lba;
	int    xa_flag;
	unsigned long capacity;
	struct atapi_toc_header hdr;
	struct atapi_toc_entry  ent[MAX_TRACKS+1];
	  /* One extra for the leadout. */
};

/* Extra per-device info for cdrom drives. */
struct cdrom_info {
	ide_drive_t	*drive;
	ide_driver_t	*driver;
	struct gendisk	*disk;
	struct kref	kref;

	/* Buffer for table of contents.  NULL if we haven't allocated
	   a TOC buffer for this device yet. */

	struct atapi_toc *toc;

	/* The result of the last successful request sense command
	   on this device. */
	struct request_sense sense_data;

	struct request request_sense_request;

	u8 max_speed;		/* Max speed of the drive. */
	u8 current_speed;	/* Current speed of the drive. */

        /* Per-device info needed by cdrom.c generic driver. */
        struct cdrom_device_info devinfo;

	unsigned long write_timeout;
};

/* ide-cd_verbose.c */
void ide_cd_log_error(const char *, struct request *, struct request_sense *);

/* ide-cd.c functions used by ide-cd_ioctl.c */
int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *,
		    unsigned *, struct request_sense *, int, unsigned int);
int ide_cd_read_toc(ide_drive_t *, struct request_sense *);
int ide_cdrom_get_capabilities(ide_drive_t *, u8 *);
void ide_cdrom_update_speed(ide_drive_t *, u8 *);
int cdrom_check_status(ide_drive_t *, struct request_sense *);

/* ide-cd_ioctl.c */
int ide_cdrom_open_real(struct cdrom_device_info *, int);
void ide_cdrom_release_real(struct cdrom_device_info *);
int ide_cdrom_drive_status(struct cdrom_device_info *, int);
int ide_cdrom_check_media_change_real(struct cdrom_device_info *, int);
int ide_cdrom_tray_move(struct cdrom_device_info *, int);
int ide_cdrom_lock_door(struct cdrom_device_info *, int);
int ide_cdrom_select_speed(struct cdrom_device_info *, int);
int ide_cdrom_get_last_session(struct cdrom_device_info *,
			       struct cdrom_multisession *);
int ide_cdrom_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);
int ide_cdrom_reset(struct cdrom_device_info *cdi);
int ide_cdrom_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
int ide_cdrom_packet(struct cdrom_device_info *, struct packet_command *);

#endif /* _IDE_CD_H */
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (C) 1996-98 Erik Andersen
	3	* Copyright (C) 1998-2000 Jens Axboe
	4	*/
	5	#ifndef _IDE_CD_H
	6	#define _IDE_CD_H
	7
	8	#include <linux/cdrom.h>
	9	#include <asm/byteorder.h>
	10
0f38aaa4 BP	11	#define IDECD_DEBUG_LOG 0
	12
	13	#if IDECD_DEBUG_LOG
	14	#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
	15	#else
	16	#define ide_debug_log(lvl, fmt, args...) do {} while (0)
	17	#endif
	18
1da177e4 LT	19	#define ATAPI_WAIT_WRITE_BUSY (10 * HZ)
	20
	21	/************************************************************************/
	22
	23	#define SECTOR_BITS 9
	24	#ifndef SECTOR_SIZE
	25	#define SECTOR_SIZE (1 << SECTOR_BITS)
	26	#endif
	27	#define SECTORS_PER_FRAME (CD_FRAMESIZE >> SECTOR_BITS)
	28	#define SECTOR_BUFFER_SIZE (CD_FRAMESIZE * 32)
1da177e4	29
455d80a9 BZ	30	/* Capabilities Page size including 8 bytes of Mode Page Header */
	31	#define ATAPI_CAPABILITIES_PAGE_SIZE (8 + 20)
	32	#define ATAPI_CAPABILITIES_PAGE_PAD_SIZE 4
	33
1da177e4 LT	34	/* Structure of a MSF cdrom address. */
	35	struct atapi_msf {
	36	byte reserved;
	37	byte minute;
	38	byte second;
	39	byte frame;
	40	};
	41
	42	/* Space to hold the disk TOC. */
	43	#define MAX_TRACKS 99
	44	struct atapi_toc_header {
	45	unsigned short toc_length;
	46	byte first_track;
	47	byte last_track;
	48	};
	49
	50	struct atapi_toc_entry {
	51	byte reserved1;
	52	#if defined(__BIG_ENDIAN_BITFIELD)
	53	__u8 adr : 4;
	54	__u8 control : 4;
	55	#elif defined(__LITTLE_ENDIAN_BITFIELD)
	56	__u8 control : 4;
	57	__u8 adr : 4;
	58	#else
	59	#error "Please fix <asm/byteorder.h>"
	60	#endif
	61	byte track;
	62	byte reserved2;
	63	union {
	64	unsigned lba;
	65	struct atapi_msf msf;
	66	} addr;
	67	};
	68
	69	struct atapi_toc {
	70	int last_session_lba;
	71	int xa_flag;
	72	unsigned long capacity;
	73	struct atapi_toc_header hdr;
	74	struct atapi_toc_entry ent[MAX_TRACKS+1];
	75	/* One extra for the leadout. */
	76	};
	77
1da177e4 LT	78	/* Extra per-device info for cdrom drives. */
	79	struct cdrom_info {
	80	ide_drive_t *drive;
	81	ide_driver_t *driver;
	82	struct gendisk *disk;
	83	struct kref kref;
	84
	85	/* Buffer for table of contents. NULL if we haven't allocated
	86	a TOC buffer for this device yet. */
	87
	88	struct atapi_toc *toc;
	89
1da177e4 LT	90	/* The result of the last successful request sense command
	91	on this device. */
	92	struct request_sense sense_data;
	93
	94	struct request request_sense_request;
1da177e4	95
2bc4cf2d BZ	96	u8 max_speed; /* Max speed of the drive. */
2bc4cf2d BZ	97	u8 current_speed; /* Current speed of the drive. */
1da177e4 LT	98
	99	/* Per-device info needed by cdrom.c generic driver. */
	100	struct cdrom_device_info devinfo;
	101
	102	unsigned long write_timeout;
	103	};
	104
972560fb BZ	105	/* ide-cd_verbose.c */
972560fb BZ	106	void ide_cd_log_error(const char , struct request , struct request_sense *);
1da177e4	107
17802998	108	/* ide-cd.c functions used by ide-cd_ioctl.c */
5f828546 FT	109	int ide_cd_queue_pc(ide_drive_t , const unsigned char , int, void *,
5f828546 FT	110	unsigned , struct request_sense , int, unsigned int);
17802998 BZ	111	int ide_cd_read_toc(ide_drive_t , struct request_sense );
	112	int ide_cdrom_get_capabilities(ide_drive_t , u8 );
	113	void ide_cdrom_update_speed(ide_drive_t , u8 );
f9afd18b	114	int cdrom_check_status(ide_drive_t , struct request_sense );
17802998 BZ	115
17802998 BZ	116	/* ide-cd_ioctl.c */
f9afd18b BP	117	int ide_cdrom_open_real(struct cdrom_device_info *, int);
	118	void ide_cdrom_release_real(struct cdrom_device_info *);
	119	int ide_cdrom_drive_status(struct cdrom_device_info *, int);
	120	int ide_cdrom_check_media_change_real(struct cdrom_device_info *, int);
	121	int ide_cdrom_tray_move(struct cdrom_device_info *, int);
17802998 BZ	122	int ide_cdrom_lock_door(struct cdrom_device_info *, int);
	123	int ide_cdrom_select_speed(struct cdrom_device_info *, int);
	124	int ide_cdrom_get_last_session(struct cdrom_device_info *,
	125	struct cdrom_multisession *);
	126	int ide_cdrom_get_mcn(struct cdrom_device_info , struct cdrom_mcn );
	127	int ide_cdrom_reset(struct cdrom_device_info *cdi);
	128	int ide_cdrom_audio_ioctl(struct cdrom_device_info , unsigned int, void );
f9afd18b	129	int ide_cdrom_packet(struct cdrom_device_info , struct packet_command );
17802998	130
1da177e4	131	#endif /* _IDE_CD_H */