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-rw-r--r--drivers/ide/ide-atapi.c5
-rw-r--r--drivers/ide/ide-cd.c96
2 files changed, 6 insertions, 95 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index d6a50d67b7db..e96c01260598 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -549,7 +549,10 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
549 } 549 }
550 550
551 /* Set the interrupt routine */ 551 /* Set the interrupt routine */
552 ide_set_handler(drive, ide_pc_intr, timeout, expiry); 552 ide_set_handler(drive,
553 (dev_is_idecd(drive) ? drive->irq_handler
554 : ide_pc_intr),
555 timeout, expiry);
553 556
554 /* Begin DMA, if necessary */ 557 /* Begin DMA, if necessary */
555 if (dev_is_idecd(drive)) { 558 if (dev_is_idecd(drive)) {
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 2cb301dccd21..cae69372cf45 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -510,99 +510,6 @@ end_request:
510 return 1; 510 return 1;
511} 511}
512 512
513static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *);
514static ide_startstop_t cdrom_newpc_intr(ide_drive_t *);
515
516/*
517 * Set up the device registers for transferring a packet command on DEV,
518 * expecting to later transfer XFERLEN bytes. HANDLER is the routine
519 * which actually transfers the command to the drive. If this is a
520 * drq_interrupt device, this routine will arrange for HANDLER to be
521 * called when the interrupt from the drive arrives. Otherwise, HANDLER
522 * will be called immediately after the drive is prepared for the transfer.
523 */
524static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive)
525{
526 ide_hwif_t *hwif = drive->hwif;
527 struct request *rq = hwif->rq;
528 int xferlen;
529
530 xferlen = ide_cd_get_xferlen(rq);
531
532 ide_debug_log(IDE_DBG_PC, "Call %s, xferlen: %d\n", __func__, xferlen);
533
534 /* FIXME: for Virtual DMA we must check harder */
535 if (drive->dma)
536 drive->dma = !hwif->dma_ops->dma_setup(drive);
537
538 /* set up the controller registers */
539 ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL,
540 xferlen, drive->dma);
541
542 if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
543 /* waiting for CDB interrupt, not DMA yet. */
544 if (drive->dma)
545 drive->waiting_for_dma = 0;
546
547 /* packet command */
548 ide_execute_command(drive, ATA_CMD_PACKET,
549 cdrom_transfer_packet_command,
550 ATAPI_WAIT_PC, ide_cd_expiry);
551 return ide_started;
552 } else {
553 ide_execute_pkt_cmd(drive);
554
555 return cdrom_transfer_packet_command(drive);
556 }
557}
558
559/*
560 * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device
561 * registers must have already been prepared by cdrom_start_packet_command.
562 * HANDLER is the interrupt handler to call when the command completes or
563 * there's data ready.
564 */
565#define ATAPI_MIN_CDB_BYTES 12
566static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive)
567{
568 ide_hwif_t *hwif = drive->hwif;
569 struct request *rq = hwif->rq;
570 int cmd_len;
571 ide_startstop_t startstop;
572
573 ide_debug_log(IDE_DBG_PC, "Call %s\n", __func__);
574
575 /* we must wait for DRQ to get set */
576 if (ide_wait_stat(&startstop, drive, ATA_DRQ, ATA_BUSY, WAIT_READY)) {
577 printk(KERN_ERR "%s: timeout while waiting for DRQ to assert\n",
578 drive->name);
579 return startstop;
580 }
581
582 if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
583 /* ok, next interrupt will be DMA interrupt */
584 if (drive->dma)
585 drive->waiting_for_dma = 1;
586 }
587
588 /* arm the interrupt handler */
589 ide_set_handler(drive, cdrom_newpc_intr, rq->timeout, ide_cd_expiry);
590
591 /* ATAPI commands get padded out to 12 bytes minimum */
592 cmd_len = COMMAND_SIZE(rq->cmd[0]);
593 if (cmd_len < ATAPI_MIN_CDB_BYTES)
594 cmd_len = ATAPI_MIN_CDB_BYTES;
595
596 /* start the DMA if need be */
597 if (drive->dma)
598 hwif->dma_ops->dma_start(drive);
599
600 /* send the command to the device */
601 hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len);
602
603 return ide_started;
604}
605
606/* 513/*
607 * Check the contents of the interrupt reason register from the cdrom 514 * Check the contents of the interrupt reason register from the cdrom
608 * and attempt to recover if there are problems. Returns 0 if everything's 515 * and attempt to recover if there are problems. Returns 0 if everything's
@@ -1174,7 +1081,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
1174 return ide_stopped; 1081 return ide_stopped;
1175 } 1082 }
1176 1083
1177 return cdrom_start_packet_command(drive); 1084 return ide_issue_pc(drive);
1178} 1085}
1179 1086
1180/* 1087/*
@@ -2072,6 +1979,7 @@ static int ide_cd_probe(ide_drive_t *drive)
2072 } 1979 }
2073 1980
2074 drive->debug_mask = debug_mask; 1981 drive->debug_mask = debug_mask;
1982 drive->irq_handler = cdrom_newpc_intr;
2075 1983
2076 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); 1984 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
2077 if (info == NULL) { 1985 if (info == NULL) {