ide-cd: move the remaining cdrom.c ioctl handling code to ide-cd_ioctl.c

There should be no functional changes from this.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 210 insertions, 0 deletions

diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c
index ec698c44e8bf..b68284de4e85 100644
--- a/drivers/ide/ide-cd_ioctl.c
+++ b/drivers/ide/ide-cd_ioctl.c
@@ -9,9 +9,188 @@
 #include <linux/kernel.h>
 #include <linux/cdrom.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;
+}
+
+/*
+ * Close down the device.  Invalidate all cached blocks.
+ */
+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;
+}
+
+/*
+ * 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;
+}
+
+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;
+	}
+}
+
+/* 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);
+}
+
+/* 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 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;
+}
+
+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_lock_door(struct cdrom_device_info *cdi, int lock)
 {
 	ide_drive_t *drive = cdi->handle;
@@ -263,3 +442,34 @@ int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi,
 		return -EINVAL;
 	}
 }
+
+/* the generic packet interface to cdrom.c */
+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;
+}