2 * cdrom.c IOCTLs handling for ide-cd driver.
4 * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov>
5 * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
6 * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
9 #include <linux/kernel.h>
10 #include <linux/cdrom.h>
11 #include <linux/ide.h>
15 int ide_cdrom_lock_door(struct cdrom_device_info
*cdi
, int lock
)
17 ide_drive_t
*drive
= cdi
->handle
;
19 return ide_cd_lockdoor(drive
, lock
, NULL
);
23 * ATAPI devices are free to select the speed you request or any slower
24 * rate. :-( Requesting too fast a speed will _not_ produce an error.
26 int ide_cdrom_select_speed(struct cdrom_device_info
*cdi
, int speed
)
28 ide_drive_t
*drive
= cdi
->handle
;
29 struct cdrom_info
*cd
= drive
->driver_data
;
31 struct request_sense sense
;
32 u8 buf
[ATAPI_CAPABILITIES_PAGE_SIZE
];
35 ide_cd_init_rq(drive
, &rq
);
40 speed
= 0xffff; /* set to max */
42 speed
*= 177; /* Nx to kbytes/s */
44 rq
.cmd
[0] = GPCMD_SET_SPEED
;
45 /* Read Drive speed in kbytes/second MSB/LSB */
46 rq
.cmd
[2] = (speed
>> 8) & 0xff;
47 rq
.cmd
[3] = speed
& 0xff;
48 if ((cdi
->mask
& (CDC_CD_R
| CDC_CD_RW
| CDC_DVD_R
)) !=
49 (CDC_CD_R
| CDC_CD_RW
| CDC_DVD_R
)) {
50 /* Write Drive speed in kbytes/second MSB/LSB */
51 rq
.cmd
[4] = (speed
>> 8) & 0xff;
52 rq
.cmd
[5] = speed
& 0xff;
55 stat
= ide_cd_queue_pc(drive
, &rq
);
57 if (!ide_cdrom_get_capabilities(drive
, buf
)) {
58 ide_cdrom_update_speed(drive
, buf
);
59 cdi
->speed
= cd
->current_speed
;
65 int ide_cdrom_get_last_session(struct cdrom_device_info
*cdi
,
66 struct cdrom_multisession
*ms_info
)
68 struct atapi_toc
*toc
;
69 ide_drive_t
*drive
= cdi
->handle
;
70 struct cdrom_info
*info
= drive
->driver_data
;
71 struct request_sense sense
;
74 if ((info
->cd_flags
& IDE_CD_FLAG_TOC_VALID
) == 0 || !info
->toc
) {
75 ret
= ide_cd_read_toc(drive
, &sense
);
81 ms_info
->addr
.lba
= toc
->last_session_lba
;
82 ms_info
->xa_flag
= toc
->xa_flag
;
87 int ide_cdrom_get_mcn(struct cdrom_device_info
*cdi
,
88 struct cdrom_mcn
*mcn_info
)
90 ide_drive_t
*drive
= cdi
->handle
;
95 ide_cd_init_rq(drive
, &rq
);
98 rq
.data_len
= sizeof(buf
);
100 rq
.cmd
[0] = GPCMD_READ_SUBCHANNEL
;
101 rq
.cmd
[1] = 2; /* MSF addressing */
102 rq
.cmd
[2] = 0x40; /* request subQ data */
103 rq
.cmd
[3] = 2; /* format */
104 rq
.cmd
[8] = sizeof(buf
);
106 stat
= ide_cd_queue_pc(drive
, &rq
);
110 mcnlen
= sizeof(mcn_info
->medium_catalog_number
) - 1;
111 memcpy(mcn_info
->medium_catalog_number
, buf
+ 9, mcnlen
);
112 mcn_info
->medium_catalog_number
[mcnlen
] = '\0';
117 int ide_cdrom_reset(struct cdrom_device_info
*cdi
)
119 ide_drive_t
*drive
= cdi
->handle
;
120 struct cdrom_info
*cd
= drive
->driver_data
;
121 struct request_sense sense
;
125 ide_cd_init_rq(drive
, &req
);
126 req
.cmd_type
= REQ_TYPE_SPECIAL
;
127 req
.cmd_flags
= REQ_QUIET
;
128 ret
= ide_do_drive_cmd(drive
, &req
, ide_wait
);
131 * A reset will unlock the door. If it was previously locked,
134 if (cd
->cd_flags
& IDE_CD_FLAG_DOOR_LOCKED
)
135 (void)ide_cd_lockdoor(drive
, 1, &sense
);
140 static int ide_cd_get_toc_entry(ide_drive_t
*drive
, int track
,
141 struct atapi_toc_entry
**ent
)
143 struct cdrom_info
*info
= drive
->driver_data
;
144 struct atapi_toc
*toc
= info
->toc
;
148 * don't serve cached data, if the toc isn't valid
150 if ((info
->cd_flags
& IDE_CD_FLAG_TOC_VALID
) == 0)
153 /* Check validity of requested track number. */
154 ntracks
= toc
->hdr
.last_track
- toc
->hdr
.first_track
+ 1;
156 if (toc
->hdr
.first_track
== CDROM_LEADOUT
)
159 if (track
== CDROM_LEADOUT
)
160 *ent
= &toc
->ent
[ntracks
];
161 else if (track
< toc
->hdr
.first_track
|| track
> toc
->hdr
.last_track
)
164 *ent
= &toc
->ent
[track
- toc
->hdr
.first_track
];
169 static int ide_cd_fake_play_trkind(ide_drive_t
*drive
, void *arg
)
171 struct cdrom_ti
*ti
= arg
;
172 struct atapi_toc_entry
*first_toc
, *last_toc
;
173 unsigned long lba_start
, lba_end
;
176 struct request_sense sense
;
178 stat
= ide_cd_get_toc_entry(drive
, ti
->cdti_trk0
, &first_toc
);
182 stat
= ide_cd_get_toc_entry(drive
, ti
->cdti_trk1
, &last_toc
);
186 if (ti
->cdti_trk1
!= CDROM_LEADOUT
)
188 lba_start
= first_toc
->addr
.lba
;
189 lba_end
= last_toc
->addr
.lba
;
191 if (lba_end
<= lba_start
)
194 ide_cd_init_rq(drive
, &rq
);
197 rq
.cmd
[0] = GPCMD_PLAY_AUDIO_MSF
;
198 lba_to_msf(lba_start
, &rq
.cmd
[3], &rq
.cmd
[4], &rq
.cmd
[5]);
199 lba_to_msf(lba_end
- 1, &rq
.cmd
[6], &rq
.cmd
[7], &rq
.cmd
[8]);
201 return ide_cd_queue_pc(drive
, &rq
);
204 static int ide_cd_read_tochdr(ide_drive_t
*drive
, void *arg
)
206 struct cdrom_info
*cd
= drive
->driver_data
;
207 struct cdrom_tochdr
*tochdr
= arg
;
208 struct atapi_toc
*toc
;
211 /* Make sure our saved TOC is valid. */
212 stat
= ide_cd_read_toc(drive
, NULL
);
217 tochdr
->cdth_trk0
= toc
->hdr
.first_track
;
218 tochdr
->cdth_trk1
= toc
->hdr
.last_track
;
223 static int ide_cd_read_tocentry(ide_drive_t
*drive
, void *arg
)
225 struct cdrom_tocentry
*tocentry
= arg
;
226 struct atapi_toc_entry
*toce
;
229 stat
= ide_cd_get_toc_entry(drive
, tocentry
->cdte_track
, &toce
);
233 tocentry
->cdte_ctrl
= toce
->control
;
234 tocentry
->cdte_adr
= toce
->adr
;
235 if (tocentry
->cdte_format
== CDROM_MSF
) {
236 lba_to_msf(toce
->addr
.lba
,
237 &tocentry
->cdte_addr
.msf
.minute
,
238 &tocentry
->cdte_addr
.msf
.second
,
239 &tocentry
->cdte_addr
.msf
.frame
);
241 tocentry
->cdte_addr
.lba
= toce
->addr
.lba
;
246 int ide_cdrom_audio_ioctl(struct cdrom_device_info
*cdi
,
247 unsigned int cmd
, void *arg
)
249 ide_drive_t
*drive
= cdi
->handle
;
253 * emulate PLAY_AUDIO_TI command with PLAY_AUDIO_10, since
254 * atapi doesn't support it
256 case CDROMPLAYTRKIND
:
257 return ide_cd_fake_play_trkind(drive
, arg
);
258 case CDROMREADTOCHDR
:
259 return ide_cd_read_tochdr(drive
, arg
);
260 case CDROMREADTOCENTRY
:
261 return ide_cd_read_tocentry(drive
, arg
);