27c01c2db0
It doesn't make much sense nowadays and is problematic on some drives. Cc: Borislav Petkov <petkovbb@googlemail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
/*
|
|
* 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;
|
|
|
|
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 */
|