[deliverable/linux.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>

/*
 * typical timeout for packet command
 */
#define ATAPI_WAIT_PC		(60 * HZ)
#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;
	int dma;
	unsigned long last_block;
	unsigned long start_seek;

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