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Linux kernel mirror (for testing)
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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/*
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)
25
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
30/* Structure of a MSF cdrom address. */
31struct 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
40struct atapi_toc_header {
41 unsigned short toc_length;
42 byte first_track;
43 byte last_track;
44};
45
46struct 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
65struct 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
74/* Extra per-device info for cdrom drives. */
75struct 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
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 unsigned long last_block;
92 unsigned long start_seek;
93
94 u8 max_speed; /* Max speed of the drive. */
95 u8 current_speed; /* Current speed of the drive. */
96
97 /* Per-device info needed by cdrom.c generic driver. */
98 struct cdrom_device_info devinfo;
99
100 unsigned long write_timeout;
101};
102
103/* ide-cd_verbose.c */
104void ide_cd_log_error(const char *, struct request *, struct request_sense *);
105
106/* ide-cd.c functions used by ide-cd_ioctl.c */
107int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *,
108 unsigned *, struct request_sense *, int, unsigned int);
109int ide_cd_read_toc(ide_drive_t *, struct request_sense *);
110int ide_cdrom_get_capabilities(ide_drive_t *, u8 *);
111void ide_cdrom_update_speed(ide_drive_t *, u8 *);
112int cdrom_check_status(ide_drive_t *, struct request_sense *);
113
114/* ide-cd_ioctl.c */
115int ide_cdrom_open_real(struct cdrom_device_info *, int);
116void ide_cdrom_release_real(struct cdrom_device_info *);
117int ide_cdrom_drive_status(struct cdrom_device_info *, int);
118int ide_cdrom_check_media_change_real(struct cdrom_device_info *, int);
119int ide_cdrom_tray_move(struct cdrom_device_info *, int);
120int ide_cdrom_lock_door(struct cdrom_device_info *, int);
121int ide_cdrom_select_speed(struct cdrom_device_info *, int);
122int ide_cdrom_get_last_session(struct cdrom_device_info *,
123 struct cdrom_multisession *);
124int ide_cdrom_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *);
125int ide_cdrom_reset(struct cdrom_device_info *cdi);
126int ide_cdrom_audio_ioctl(struct cdrom_device_info *, unsigned int, void *);
127int ide_cdrom_packet(struct cdrom_device_info *, struct packet_command *);
128
129#endif /* _IDE_CD_H */