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@@ -3,6 +3,7 @@
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*/
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#include <linux/kernel.h>
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+#include <linux/cdrom.h>
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#include <linux/delay.h>
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#include <linux/ide.h>
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#include <scsi/scsi.h>
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@@ -252,6 +253,38 @@ int ide_scsi_expiry(ide_drive_t *drive)
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}
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EXPORT_SYMBOL_GPL(ide_scsi_expiry);
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+int ide_cd_expiry(ide_drive_t *drive)
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+{
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+ struct request *rq = HWGROUP(drive)->rq;
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+ unsigned long wait = 0;
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+
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+ debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
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+
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+ /*
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+ * Some commands are *slow* and normally take a long time to complete.
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+ * Usually we can use the ATAPI "disconnect" to bypass this, but not all
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+ * commands/drives support that. Let ide_timer_expiry keep polling us
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+ * for these.
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+ */
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+ switch (rq->cmd[0]) {
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+ case GPCMD_BLANK:
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+ case GPCMD_FORMAT_UNIT:
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+ case GPCMD_RESERVE_RZONE_TRACK:
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+ case GPCMD_CLOSE_TRACK:
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+ case GPCMD_FLUSH_CACHE:
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+ wait = ATAPI_WAIT_PC;
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+ break;
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+ default:
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+ if (!(rq->cmd_flags & REQ_QUIET))
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+ printk(KERN_INFO "cmd 0x%x timed out\n",
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+ rq->cmd[0]);
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+ wait = 0;
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+ break;
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+ }
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+ return wait;
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+}
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+EXPORT_SYMBOL_GPL(ide_cd_expiry);
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+
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int ide_cd_get_xferlen(struct request *rq)
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{
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if (blk_fs_request(rq))
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@@ -562,11 +595,11 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
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return ide_started;
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}
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-ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
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- ide_expiry_t *expiry)
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+ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout)
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{
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struct ide_atapi_pc *pc = drive->pc;
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ide_hwif_t *hwif = drive->hwif;
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+ ide_expiry_t *expiry = NULL;
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u32 tf_flags;
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u16 bcount;
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u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI);
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@@ -578,9 +611,11 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
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if (dev_is_idecd(drive)) {
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tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
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bcount = ide_cd_get_xferlen(hwif->hwgroup->rq);
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+ expiry = ide_cd_expiry;
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} else if (scsi) {
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tf_flags = 0;
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bcount = min(pc->req_xfer, 63 * 1024);
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+ expiry = ide_scsi_expiry;
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} else {
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tf_flags = IDE_TFLAG_OUT_DEVICE;
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bcount = ((drive->media == ide_tape) ?
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@@ -613,7 +648,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
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if (drive->dma)
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drive->waiting_for_dma = 0;
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ide_execute_command(drive, ATA_CMD_PACKET, ide_transfer_pc,
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- timeout, NULL);
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+ timeout, expiry);
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return ide_started;
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} else {
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ide_execute_pkt_cmd(drive);
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