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Release 4.14 drivers/ide/ide-cd.h

Directory: drivers/ide
/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  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 {
	
u8 reserved;
	
u8 minute;
	
u8 second;
	
u8 frame;
};

/* Space to hold the disk TOC. */

#define MAX_TRACKS 99

struct atapi_toc_header {
	
unsigned short toc_length;
	
u8 first_track;
	
u8 last_track;
};


struct atapi_toc_entry {
	
u8 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
	
u8 track;
	
u8 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;
	
struct ide_driver	*driver;
	
struct gendisk		*disk;
	
struct device		dev;

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

	
struct atapi_toc *toc;

	
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, req_flags_t);
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);
unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *,
					 unsigned int clearing, int slot_nr);
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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
Jens Axboe17936.68%14.76%
Bartlomiej Zolnierkiewicz17235.25%1152.38%
Borislav Petkov10321.11%314.29%
FUJITA Tomonori173.48%14.76%
Andrew Morton81.64%29.52%
Tejun Heo71.43%14.76%
Christoph Hellwig10.20%14.76%
Greg Kroah-Hartman10.20%14.76%
Total488100.00%21100.00%
Directory: drivers/ide
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