PageRenderTime 25ms CodeModel.GetById 19ms app.highlight 5ms RepoModel.GetById 0ms app.codeStats 0ms

/drivers/ide/ide-cd.h

https://bitbucket.org/ndreys/linux-sunxi
C++ Header | 126 lines | 89 code | 21 blank | 16 comment | 1 complexity | c649480792ed9e4bf05b1e746206fd0f MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
  1/*
  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
 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
 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)
 29
 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
 34/* Structure of a MSF cdrom address. */
 35struct atapi_msf {
 36	u8 reserved;
 37	u8 minute;
 38	u8 second;
 39	u8 frame;
 40};
 41
 42/* Space to hold the disk TOC. */
 43#define MAX_TRACKS 99
 44struct atapi_toc_header {
 45	unsigned short toc_length;
 46	u8 first_track;
 47	u8 last_track;
 48};
 49
 50struct atapi_toc_entry {
 51	u8 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	u8 track;
 62	u8 reserved2;
 63	union {
 64		unsigned lba;
 65		struct atapi_msf msf;
 66	} addr;
 67};
 68
 69struct 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
 78/* Extra per-device info for cdrom drives. */
 79struct cdrom_info {
 80	ide_drive_t		*drive;
 81	struct ide_driver	*driver;
 82	struct gendisk		*disk;
 83	struct device		dev;
 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
 90	u8 max_speed;		/* Max speed of the drive. */
 91	u8 current_speed;	/* Current speed of the drive. */
 92
 93        /* Per-device info needed by cdrom.c generic driver. */
 94        struct cdrom_device_info devinfo;
 95
 96	unsigned long write_timeout;
 97};
 98
 99/* ide-cd_verbose.c */
100void ide_cd_log_error(const char *, struct request *, struct request_sense *);
101
102/* ide-cd.c functions used by ide-cd_ioctl.c */
103int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *,
104		    unsigned *, struct request_sense *, int, unsigned int);
105int ide_cd_read_toc(ide_drive_t *, struct request_sense *);
106int ide_cdrom_get_capabilities(ide_drive_t *, u8 *);
107void ide_cdrom_update_speed(ide_drive_t *, u8 *);
108int cdrom_check_status(ide_drive_t *, struct request_sense *);
109
110/* ide-cd_ioctl.c */
111int ide_cdrom_open_real(struct cdrom_device_info *, int);
112void ide_cdrom_release_real(struct cdrom_device_info *);
113int ide_cdrom_drive_status(struct cdrom_device_info *, int);
114unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *,
115					 unsigned int clearing, int slot_nr);
116int ide_cdrom_tray_move(struct cdrom_device_info *, int);
117int ide_cdrom_lock_door(struct cdrom_device_info *, int);
118int ide_cdrom_select_speed(struct cdrom_device_info *, int);
119int ide_cdrom_get_last_session(struct cdrom_device_info *,
120			       struct cdrom_multisession *);
121int ide_cdrom_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);
122int ide_cdrom_reset(struct cdrom_device_info *cdi);
123int ide_cdrom_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
124int ide_cdrom_packet(struct cdrom_device_info *, struct packet_command *);
125
126#endif /* _IDE_CD_H */