ide-cd: convert to ide-atapi facilities
... and remove no longer needed cdrom_start_packet_command and
cdrom_transfer_packet_command.
Tested lightly with ide-cd and ide-floppy.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 2cb301d..cae6937 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -510,99 +510,6 @@
return 1;
}
-static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *);
-static ide_startstop_t cdrom_newpc_intr(ide_drive_t *);
-
-/*
- * Set up the device registers for transferring a packet command on DEV,
- * expecting to later transfer XFERLEN bytes. HANDLER is the routine
- * which actually transfers the command to the drive. If this is a
- * drq_interrupt device, this routine will arrange for HANDLER to be
- * called when the interrupt from the drive arrives. Otherwise, HANDLER
- * will be called immediately after the drive is prepared for the transfer.
- */
-static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->rq;
- int xferlen;
-
- xferlen = ide_cd_get_xferlen(rq);
-
- ide_debug_log(IDE_DBG_PC, "Call %s, xferlen: %d\n", __func__, xferlen);
-
- /* FIXME: for Virtual DMA we must check harder */
- if (drive->dma)
- drive->dma = !hwif->dma_ops->dma_setup(drive);
-
- /* set up the controller registers */
- ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL,
- xferlen, drive->dma);
-
- if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
- /* waiting for CDB interrupt, not DMA yet. */
- if (drive->dma)
- drive->waiting_for_dma = 0;
-
- /* packet command */
- ide_execute_command(drive, ATA_CMD_PACKET,
- cdrom_transfer_packet_command,
- ATAPI_WAIT_PC, ide_cd_expiry);
- return ide_started;
- } else {
- ide_execute_pkt_cmd(drive);
-
- return cdrom_transfer_packet_command(drive);
- }
-}
-
-/*
- * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device
- * registers must have already been prepared by cdrom_start_packet_command.
- * HANDLER is the interrupt handler to call when the command completes or
- * there's data ready.
- */
-#define ATAPI_MIN_CDB_BYTES 12
-static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->rq;
- int cmd_len;
- ide_startstop_t startstop;
-
- ide_debug_log(IDE_DBG_PC, "Call %s\n", __func__);
-
- /* we must wait for DRQ to get set */
- if (ide_wait_stat(&startstop, drive, ATA_DRQ, ATA_BUSY, WAIT_READY)) {
- printk(KERN_ERR "%s: timeout while waiting for DRQ to assert\n",
- drive->name);
- return startstop;
- }
-
- if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {
- /* ok, next interrupt will be DMA interrupt */
- if (drive->dma)
- drive->waiting_for_dma = 1;
- }
-
- /* arm the interrupt handler */
- ide_set_handler(drive, cdrom_newpc_intr, rq->timeout, ide_cd_expiry);
-
- /* ATAPI commands get padded out to 12 bytes minimum */
- cmd_len = COMMAND_SIZE(rq->cmd[0]);
- if (cmd_len < ATAPI_MIN_CDB_BYTES)
- cmd_len = ATAPI_MIN_CDB_BYTES;
-
- /* start the DMA if need be */
- if (drive->dma)
- hwif->dma_ops->dma_start(drive);
-
- /* send the command to the device */
- hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len);
-
- return ide_started;
-}
-
/*
* Check the contents of the interrupt reason register from the cdrom
* and attempt to recover if there are problems. Returns 0 if everything's
@@ -1174,7 +1081,7 @@
return ide_stopped;
}
- return cdrom_start_packet_command(drive);
+ return ide_issue_pc(drive);
}
/*
@@ -2072,6 +1979,7 @@
}
drive->debug_mask = debug_mask;
+ drive->irq_handler = cdrom_newpc_intr;
info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
if (info == NULL) {