Release 4.12 drivers/ide/ide-cd_ioctl.c
/*
* cdrom.c IOCTLs handling for ide-cd driver.
*
* Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov>
* Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
* Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
*/
#include <linux/kernel.h>
#include <linux/cdrom.h>
#include <linux/gfp.h>
#include <linux/ide.h>
#include <scsi/scsi.h>
#include "ide-cd.h"
/****************************************************************************
* Other driver requests (open, close, check media change).
*/
int ide_cdrom_open_real(struct cdrom_device_info *cdi, int purpose)
{
return 0;
}
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/*
* Close down the device. Invalidate all cached blocks.
*/
void ide_cdrom_release_real(struct cdrom_device_info *cdi)
{
ide_drive_t *drive = cdi->handle;
if (!cdi->use_count)
drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 32 | 100.00% | 2 | 100.00% |
| Total | 32 | 100.00% | 2 | 100.00% |
/*
* add logic to try GET_EVENT command first to check for media and tray
* status. this should be supported by newer cd-r/w and all DVD etc
* drives
*/
int ide_cdrom_drive_status(struct cdrom_device_info *cdi, int slot_nr)
{
ide_drive_t *drive = cdi->handle;
struct media_event_desc med;
struct request_sense sense;
int stat;
if (slot_nr != CDSL_CURRENT)
return -EINVAL;
stat = cdrom_check_status(drive, &sense);
if (!stat || sense.sense_key == UNIT_ATTENTION)
return CDS_DISC_OK;
if (!cdrom_get_media_event(cdi, &med)) {
if (med.media_present)
return CDS_DISC_OK;
else if (med.door_open)
return CDS_TRAY_OPEN;
else
return CDS_NO_DISC;
}
if (sense.sense_key == NOT_READY && sense.asc == 0x04
&& sense.ascq == 0x04)
return CDS_DISC_OK;
/*
* If not using Mt Fuji extended media tray reports,
* just return TRAY_OPEN since ATAPI doesn't provide
* any other way to detect this...
*/
if (sense.sense_key == NOT_READY) {
if (sense.asc == 0x3a && sense.ascq == 1)
return CDS_NO_DISC;
else
return CDS_TRAY_OPEN;
}
return CDS_DRIVE_NOT_READY;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 160 | 100.00% | 1 | 100.00% |
| Total | 160 | 100.00% | 1 | 100.00% |
/*
* ide-cd always generates media changed event if media is missing, which
* makes it impossible to use for proper event reporting, so disk->events
* is cleared to 0 and the following function is used only to trigger
* revalidation and never propagated to userland.
*/
unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *cdi,
unsigned int clearing, int slot_nr)
{
ide_drive_t *drive = cdi->handle;
int retval;
if (slot_nr == CDSL_CURRENT) {
(void) cdrom_check_status(drive, NULL);
retval = (drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED) ? 1 : 0;
drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED;
return retval ? DISK_EVENT_MEDIA_CHANGE : 0;
} else {
return 0;
}
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 66 | 81.48% | 2 | 50.00% |
| Tejun Heo | 11 | 13.58% | 1 | 25.00% |
| Bartlomiej Zolnierkiewicz | 4 | 4.94% | 1 | 25.00% |
| Total | 81 | 100.00% | 4 | 100.00% |
/* Eject the disk if EJECTFLAG is 0.
If EJECTFLAG is 1, try to reload the disk. */
static
int cdrom_eject(ide_drive_t *drive, int ejectflag,
struct request_sense *sense)
{
struct cdrom_info *cd = drive->driver_data;
struct cdrom_device_info *cdi = &cd->devinfo;
char loej = 0x02;
unsigned char cmd[BLK_MAX_CDB];
if ((drive->atapi_flags & IDE_AFLAG_NO_EJECT) && !ejectflag)
return -EDRIVE_CANT_DO_THIS;
/* reload fails on some drives, if the tray is locked */
if ((drive->atapi_flags & IDE_AFLAG_DOOR_LOCKED) && ejectflag)
return 0;
/* only tell drive to close tray if open, if it can do that */
if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY))
loej = 0;
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_START_STOP_UNIT;
cmd[4] = loej | (ejectflag != 0);
return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, 0);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 120 | 81.08% | 2 | 50.00% |
| FUJITA Tomonori | 27 | 18.24% | 1 | 25.00% |
| Harvey Harrison | 1 | 0.68% | 1 | 25.00% |
| Total | 148 | 100.00% | 4 | 100.00% |
/* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */
static
int ide_cd_lockdoor(ide_drive_t *drive, int lockflag,
struct request_sense *sense)
{
struct request_sense my_sense;
int stat;
if (sense == NULL)
sense = &my_sense;
/* If the drive cannot lock the door, just pretend. */
if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) {
stat = 0;
} else {
unsigned char cmd[BLK_MAX_CDB];
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
cmd[4] = lockflag ? 1 : 0;
stat = ide_cd_queue_pc(drive, cmd, 0, NULL, NULL,
sense, 0, 0);
}
/* If we got an illegal field error, the drive
probably cannot lock the door. */
if (stat != 0 &&
sense->sense_key == ILLEGAL_REQUEST &&
(sense->asc == 0x24 || sense->asc == 0x20)) {
printk(KERN_ERR "%s: door locking not supported\n",
drive->name);
drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
stat = 0;
}
/* no medium, that's alright. */
if (stat != 0 && sense->sense_key == NOT_READY && sense->asc == 0x3a)
stat = 0;
if (stat == 0) {
if (lockflag)
drive->atapi_flags |= IDE_AFLAG_DOOR_LOCKED;
else
drive->atapi_flags &= ~IDE_AFLAG_DOOR_LOCKED;
}
return stat;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 180 | 83.72% | 2 | 40.00% |
| FUJITA Tomonori | 24 | 11.16% | 1 | 20.00% |
| Bartlomiej Zolnierkiewicz | 10 | 4.65% | 1 | 20.00% |
| Harvey Harrison | 1 | 0.47% | 1 | 20.00% |
| Total | 215 | 100.00% | 5 | 100.00% |
int ide_cdrom_tray_move(struct cdrom_device_info *cdi, int position)
{
ide_drive_t *drive = cdi->handle;
struct request_sense sense;
if (position) {
int stat = ide_cd_lockdoor(drive, 0, &sense);
if (stat)
return stat;
}
return cdrom_eject(drive, !position, &sense);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 63 | 100.00% | 1 | 100.00% |
| Total | 63 | 100.00% | 1 | 100.00% |
int ide_cdrom_lock_door(struct cdrom_device_info *cdi, int lock)
{
ide_drive_t *drive = cdi->handle;
return ide_cd_lockdoor(drive, lock, NULL);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 31 | 100.00% | 1 | 100.00% |
| Total | 31 | 100.00% | 1 | 100.00% |
/*
* ATAPI devices are free to select the speed you request or any slower
* rate. :-( Requesting too fast a speed will _not_ produce an error.
*/
int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed)
{
ide_drive_t *drive = cdi->handle;
struct cdrom_info *cd = drive->driver_data;
struct request_sense sense;
u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
int stat;
unsigned char cmd[BLK_MAX_CDB];
if (speed == 0)
speed = 0xffff; /* set to max */
else
speed *= 177; /* Nx to kbytes/s */
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_SET_SPEED;
/* Read Drive speed in kbytes/second MSB/LSB */
cmd[2] = (speed >> 8) & 0xff;
cmd[3] = speed & 0xff;
if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) !=
(CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) {
/* Write Drive speed in kbytes/second MSB/LSB */
cmd[4] = (speed >> 8) & 0xff;
cmd[5] = speed & 0xff;
}
stat = ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, &sense, 0, 0);
if (!ide_cdrom_get_capabilities(drive, buf)) {
ide_cdrom_update_speed(drive, buf);
cdi->speed = cd->current_speed;
}
return 0;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 178 | 85.99% | 1 | 33.33% |
| FUJITA Tomonori | 28 | 13.53% | 1 | 33.33% |
| Harvey Harrison | 1 | 0.48% | 1 | 33.33% |
| Total | 207 | 100.00% | 3 | 100.00% |
int ide_cdrom_get_last_session(struct cdrom_device_info *cdi,
struct cdrom_multisession *ms_info)
{
struct atapi_toc *toc;
ide_drive_t *drive = cdi->handle;
struct cdrom_info *info = drive->driver_data;
struct request_sense sense;
int ret;
if ((drive->atapi_flags & IDE_AFLAG_TOC_VALID) == 0 || !info->toc) {
ret = ide_cd_read_toc(drive, &sense);
if (ret)
return ret;
}
toc = info->toc;
ms_info->addr.lba = toc->last_session_lba;
ms_info->xa_flag = toc->xa_flag;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 104 | 97.20% | 1 | 50.00% |
| Borislav Petkov | 3 | 2.80% | 1 | 50.00% |
| Total | 107 | 100.00% | 2 | 100.00% |
int ide_cdrom_get_mcn(struct cdrom_device_info *cdi,
struct cdrom_mcn *mcn_info)
{
ide_drive_t *drive = cdi->handle;
int stat, mcnlen;
char buf[24];
unsigned char cmd[BLK_MAX_CDB];
unsigned len = sizeof(buf);
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_READ_SUBCHANNEL;
cmd[1] = 2; /* MSF addressing */
cmd[2] = 0x40; /* request subQ data */
cmd[3] = 2; /* format */
cmd[8] = len;
stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0);
if (stat)
return stat;
mcnlen = sizeof(mcn_info->medium_catalog_number) - 1;
memcpy(mcn_info->medium_catalog_number, buf + 9, mcnlen);
mcn_info->medium_catalog_number[mcnlen] = '\0';
return 0;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 128 | 79.50% | 1 | 50.00% |
| FUJITA Tomonori | 33 | 20.50% | 1 | 50.00% |
| Total | 161 | 100.00% | 2 | 100.00% |
int ide_cdrom_reset(struct cdrom_device_info *cdi)
{
ide_drive_t *drive = cdi->handle;
struct cdrom_info *cd = drive->driver_data;
struct request_sense sense;
struct request *rq;
int ret;
rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM);
scsi_req_init(rq);
ide_req(rq)->type = ATA_PRIV_MISC;
rq->rq_flags = RQF_QUIET;
blk_execute_rq(drive->queue, cd->disk, rq, 0);
ret = scsi_req(rq)->result ? -EIO : 0;
blk_put_request(rq);
/*
* A reset will unlock the door. If it was previously locked,
* lock it again.
*/
if (drive->atapi_flags & IDE_AFLAG_DOOR_LOCKED)
(void)ide_cd_lockdoor(drive, 1, &sense);
return ret;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 72 | 54.96% | 1 | 10.00% |
| Christoph Hellwig | 31 | 23.66% | 6 | 60.00% |
| FUJITA Tomonori | 24 | 18.32% | 1 | 10.00% |
| Borislav Petkov | 3 | 2.29% | 1 | 10.00% |
| Mel Gorman | 1 | 0.76% | 1 | 10.00% |
| Total | 131 | 100.00% | 10 | 100.00% |
static int ide_cd_get_toc_entry(ide_drive_t *drive, int track,
struct atapi_toc_entry **ent)
{
struct cdrom_info *info = drive->driver_data;
struct atapi_toc *toc = info->toc;
int ntracks;
/*
* don't serve cached data, if the toc isn't valid
*/
if ((drive->atapi_flags & IDE_AFLAG_TOC_VALID) == 0)
return -EINVAL;
/* Check validity of requested track number. */
ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
if (toc->hdr.first_track == CDROM_LEADOUT)
ntracks = 0;
if (track == CDROM_LEADOUT)
*ent = &toc->ent[ntracks];
else if (track < toc->hdr.first_track || track > toc->hdr.last_track)
return -EINVAL;
else
*ent = &toc->ent[track - toc->hdr.first_track];
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 146 | 97.99% | 1 | 50.00% |
| Borislav Petkov | 3 | 2.01% | 1 | 50.00% |
| Total | 149 | 100.00% | 2 | 100.00% |
static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg)
{
struct cdrom_ti *ti = arg;
struct atapi_toc_entry *first_toc, *last_toc;
unsigned long lba_start, lba_end;
int stat;
struct request_sense sense;
unsigned char cmd[BLK_MAX_CDB];
stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc);
if (stat)
return stat;
stat = ide_cd_get_toc_entry(drive, ti->cdti_trk1, &last_toc);
if (stat)
return stat;
if (ti->cdti_trk1 != CDROM_LEADOUT)
++last_toc;
lba_start = first_toc->addr.lba;
lba_end = last_toc->addr.lba;
if (lba_end <= lba_start)
return -EINVAL;
memset(cmd, 0, BLK_MAX_CDB);
cmd[0] = GPCMD_PLAY_AUDIO_MSF;
lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]);
lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]);
return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, &sense, 0, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 188 | 88.26% | 1 | 33.33% |
| FUJITA Tomonori | 24 | 11.27% | 1 | 33.33% |
| Harvey Harrison | 1 | 0.47% | 1 | 33.33% |
| Total | 213 | 100.00% | 3 | 100.00% |
static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg)
{
struct cdrom_info *cd = drive->driver_data;
struct cdrom_tochdr *tochdr = arg;
struct atapi_toc *toc;
int stat;
/* Make sure our saved TOC is valid. */
stat = ide_cd_read_toc(drive, NULL);
if (stat)
return stat;
toc = cd->toc;
tochdr->cdth_trk0 = toc->hdr.first_track;
tochdr->cdth_trk1 = toc->hdr.last_track;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 84 | 100.00% | 1 | 100.00% |
| Total | 84 | 100.00% | 1 | 100.00% |
static int ide_cd_read_tocentry(ide_drive_t *drive, void *arg)
{
struct cdrom_tocentry *tocentry = arg;
struct atapi_toc_entry *toce;
int stat;
stat = ide_cd_get_toc_entry(drive, tocentry->cdte_track, &toce);
if (stat)
return stat;
tocentry->cdte_ctrl = toce->control;
tocentry->cdte_adr = toce->adr;
if (tocentry->cdte_format == CDROM_MSF) {
lba_to_msf(toce->addr.lba,
&tocentry->cdte_addr.msf.minute,
&tocentry->cdte_addr.msf.second,
&tocentry->cdte_addr.msf.frame);
} else
tocentry->cdte_addr.lba = toce->addr.lba;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 128 | 100.00% | 1 | 100.00% |
| Total | 128 | 100.00% | 1 | 100.00% |
int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi,
unsigned int cmd, void *arg)
{
ide_drive_t *drive = cdi->handle;
switch (cmd) {
/*
* emulate PLAY_AUDIO_TI command with PLAY_AUDIO_10, since
* atapi doesn't support it
*/
case CDROMPLAYTRKIND:
return ide_cd_fake_play_trkind(drive, arg);
case CDROMREADTOCHDR:
return ide_cd_read_tochdr(drive, arg);
case CDROMREADTOCENTRY:
return ide_cd_read_tocentry(drive, arg);
default:
return -EINVAL;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 71 | 100.00% | 1 | 100.00% |
| Total | 71 | 100.00% | 1 | 100.00% |
/* the generic packet interface to cdrom.c */
int ide_cdrom_packet(struct cdrom_device_info *cdi,
struct packet_command *cgc)
{
ide_drive_t *drive = cdi->handle;
req_flags_t flags = 0;
unsigned len = cgc->buflen;
if (cgc->timeout <= 0)
cgc->timeout = ATAPI_WAIT_PC;
/* here we queue the commands from the uniform CD-ROM
layer. the packet must be complete, as we do not
touch it at all. */
if (cgc->sense)
memset(cgc->sense, 0, sizeof(struct request_sense));
if (cgc->quiet)
flags |= RQF_QUIET;
cgc->stat = ide_cd_queue_pc(drive, cgc->cmd,
cgc->data_direction == CGC_DATA_WRITE,
cgc->buffer, &len,
cgc->sense, cgc->timeout, flags);
if (!cgc->stat)
cgc->buflen -= len;
return cgc->stat;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Borislav Petkov | 91 | 67.41% | 1 | 25.00% |
| FUJITA Tomonori | 38 | 28.15% | 1 | 25.00% |
| Bartlomiej Zolnierkiewicz | 4 | 2.96% | 1 | 25.00% |
| Christoph Hellwig | 2 | 1.48% | 1 | 25.00% |
| Total | 135 | 100.00% | 4 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Bartlomiej Zolnierkiewicz | 1162 | 53.82% | 4 | 21.05% |
| Borislav Petkov | 746 | 34.55% | 2 | 10.53% |
| FUJITA Tomonori | 198 | 9.17% | 2 | 10.53% |
| Christoph Hellwig | 33 | 1.53% | 6 | 31.58% |
| Tejun Heo | 15 | 0.69% | 3 | 15.79% |
| Harvey Harrison | 4 | 0.19% | 1 | 5.26% |
| Mel Gorman | 1 | 0.05% | 1 | 5.26% |
| Total | 2159 | 100.00% | 19 | 100.00% |
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