/*
- * linux/drivers/ide/ide-cd.c
+ * ATAPI CD-ROM driver.
*
- * Copyright (C) 1994, 1995, 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>
+ * 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>
+ * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*
- * ATAPI CD-ROM driver. To be used with ide.c.
* See Documentation/cdrom/ide-cd for usage information.
*
* Suggestions are welcome. Patches that work are more welcome though. ;-)
* ftp://fission.dt.wdc.com/pub/standards/SFF_atapi/spec/SFF8020-r2.6/PS/8020r26.ps
* ftp://ftp.avc-pioneer.com/Mtfuji4/Spec/Fuji4r10.pdf
*
- * Drives that deviate from these standards will be accommodated as much
- * as possible via compile time or command-line options. Since I only have
- * a few drives, you generally need to send me patches...
- *
- * ----------------------------------
- * TO DO LIST:
- * -Make it so that Pioneer CD DR-A24X and friends don't get screwed up on
- * boot
- *
* For historical changelog please see:
* Documentation/ide/ChangeLog.ide-cd.1994-2004
*/
-#define IDECD_VERSION "4.61"
+#define IDECD_VERSION "5.00"
#include <linux/module.h>
#include <linux/types.h>
int stat, err, sense_key;
/* Check for errors. */
- stat = HWIF(drive)->INB(IDE_STATUS_REG);
+ stat = ide_read_status(drive);
+
if (stat_ret)
*stat_ret = stat;
return 0;
/* Get the IDE error register. */
- err = HWIF(drive)->INB(IDE_ERROR_REG);
+ err = ide_read_error(drive);
sense_key = err >> 4;
if (rq == NULL) {
* Block read functions.
*/
-typedef void (xfer_func_t)(ide_drive_t *, void *, u32);
-
static void ide_cd_pad_transfer(ide_drive_t *drive, xfer_func_t *xf, int len)
{
while (len > 0) {
/* Some drives (ASUS) seem to tell us that status
* info is available. just get it and ignore.
*/
- (void) HWIF(drive)->INB(IDE_STATUS_REG);
+ (void)ide_read_status(drive);
return 0;
} else {
/* Drive wants a command packet, or invalid ireason... */
if (blk_fs_request(rq)) {
if (info->cd_flags & IDE_CD_FLAG_SEEKING) {
unsigned long elapsed = jiffies - info->start_seek;
- int stat = HWIF(drive)->INB(IDE_STATUS_REG);
+ int stat = ide_read_status(drive);
if ((stat & SEEK_STAT) != SEEK_STAT) {
if (elapsed < IDECD_SEEK_TIMEOUT) {
msf->frame = BCD2BIN(msf->frame);
}
-static int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
+int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
{
struct request req;
struct cdrom_info *info = drive->driver_data;
return ide_cd_queue_pc(drive, &req);
}
-/* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */
-int ide_cd_lockdoor(ide_drive_t *drive, int lockflag,
- struct request_sense *sense)
-{
- struct cdrom_info *cd = drive->driver_data;
- struct request_sense my_sense;
- struct request req;
- int stat;
-
- if (sense == NULL)
- sense = &my_sense;
-
- /* If the drive cannot lock the door, just pretend. */
- if (cd->cd_flags & IDE_CD_FLAG_NO_DOORLOCK) {
- stat = 0;
- } else {
- ide_cd_init_rq(drive, &req);
- req.sense = sense;
- req.cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL;
- req.cmd[4] = lockflag ? 1 : 0;
- stat = ide_cd_queue_pc(drive, &req);
- }
-
- /* 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);
- cd->cd_flags |= IDE_CD_FLAG_NO_DOORLOCK;
- 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)
- cd->cd_flags |= IDE_CD_FLAG_DOOR_LOCKED;
- else
- cd->cd_flags &= ~IDE_CD_FLAG_DOOR_LOCKED;
- }
-
- return stat;
-}
-
-
-/* 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;
- struct request req;
- char loej = 0x02;
-
- if ((cd->cd_flags & IDE_CD_FLAG_NO_EJECT) && !ejectflag)
- return -EDRIVE_CANT_DO_THIS;
-
- /* reload fails on some drives, if the tray is locked */
- if ((cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) && ejectflag)
- return 0;
-
- ide_cd_init_rq(drive, &req);
-
- /* only tell drive to close tray if open, if it can do that */
- if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY))
- loej = 0;
-
- req.sense = sense;
- req.cmd[0] = GPCMD_START_STOP_UNIT;
- req.cmd[4] = loej | (ejectflag != 0);
-
- return ide_cd_queue_pc(drive, &req);
-}
-
static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
unsigned long *sectors_per_frame,
struct request_sense *sense)
return 0;
}
-/* the generic packet interface to cdrom.c */
-static int ide_cdrom_packet(struct cdrom_device_info *cdi,
- struct packet_command *cgc)
-{
- struct request req;
- ide_drive_t *drive = cdi->handle;
-
- 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. */
- ide_cd_init_rq(drive, &req);
- memcpy(req.cmd, cgc->cmd, CDROM_PACKET_SIZE);
- if (cgc->sense)
- memset(cgc->sense, 0, sizeof(struct request_sense));
- req.data = cgc->buffer;
- req.data_len = cgc->buflen;
- req.timeout = cgc->timeout;
-
- if (cgc->quiet)
- req.cmd_flags |= REQ_QUIET;
-
- req.sense = cgc->sense;
- cgc->stat = ide_cd_queue_pc(drive, &req);
- if (!cgc->stat)
- cgc->buflen -= req.data_len;
- return cgc->stat;
-}
-
-static
-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);
-}
-
int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
{
struct cdrom_info *info = drive->driver_data;
cd->max_speed = (maxspeed + (176/2)) / 176;
}
-/*
- * 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
- */
-static
-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;
-}
-
-/****************************************************************************
- * Other driver requests (open, close, check media change).
- */
-
-static
-int ide_cdrom_check_media_change_real (struct cdrom_device_info *cdi,
- int slot_nr)
-{
- ide_drive_t *drive = cdi->handle;
- struct cdrom_info *cd = drive->driver_data;
- int retval;
-
- if (slot_nr == CDSL_CURRENT) {
- (void) cdrom_check_status(drive, NULL);
- retval = (cd->cd_flags & IDE_CD_FLAG_MEDIA_CHANGED) ? 1 : 0;
- cd->cd_flags &= ~IDE_CD_FLAG_MEDIA_CHANGED;
- return retval;
- } else {
- return -EINVAL;
- }
-}
-
-
-static
-int ide_cdrom_open_real (struct cdrom_device_info *cdi, int purpose)
-{
- return 0;
-}
-
-/*
- * Close down the device. Invalidate all cached blocks.
- */
-
-static
-void ide_cdrom_release_real (struct cdrom_device_info *cdi)
-{
- ide_drive_t *drive = cdi->handle;
- struct cdrom_info *cd = drive->driver_data;
-
- if (!cdi->use_count)
- cd->cd_flags &= ~IDE_CD_FLAG_TOC_VALID;
-}
-
#define IDE_CD_CAPABILITIES \
(CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
projects / linux-2.6-omap-h63xx.git / blobdiff