libata: move atapi_request_sense() to libata-scsi module

[linux-2.6] / drivers / scsi / libata-scsi.c

diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 1a1ef3429e55f99ac91dbffb7a281c05c7922e22..c58a7a19780f43a084a511cc79c9a7e6301d8e71 100644 (file)
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -1479,6 +1479,52 @@ void ata_scsi_badcmd(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *), u8
        done(cmd);
 }
 
+void atapi_request_sense(struct ata_port *ap, struct ata_device *dev,
+                        struct scsi_cmnd *cmd)
+{
+       DECLARE_COMPLETION(wait);
+       struct ata_queued_cmd *qc;
+       unsigned long flags;
+       int rc;
+
+       DPRINTK("ATAPI request sense\n");
+
+       qc = ata_qc_new_init(ap, dev);
+       BUG_ON(qc == NULL);
+
+       /* FIXME: is this needed? */
+       memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+
+       ata_sg_init_one(qc, cmd->sense_buffer, sizeof(cmd->sense_buffer));
+       qc->dma_dir = DMA_FROM_DEVICE;
+
+       memset(&qc->cdb, 0, ap->cdb_len);
+       qc->cdb[0] = REQUEST_SENSE;
+       qc->cdb[4] = SCSI_SENSE_BUFFERSIZE;
+
+       qc->tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE;
+       qc->tf.command = ATA_CMD_PACKET;
+
+       qc->tf.protocol = ATA_PROT_ATAPI;
+       qc->tf.lbam = (8 * 1024) & 0xff;
+       qc->tf.lbah = (8 * 1024) >> 8;
+       qc->nbytes = SCSI_SENSE_BUFFERSIZE;
+
+       qc->waiting = &wait;
+       qc->complete_fn = ata_qc_complete_noop;
+
+       spin_lock_irqsave(&ap->host_set->lock, flags);
+       rc = ata_qc_issue(qc);
+       spin_unlock_irqrestore(&ap->host_set->lock, flags);
+
+       if (rc)
+               ata_port_disable(ap);
+       else
+               wait_for_completion(&wait);
+
+       DPRINTK("EXIT\n");
+}
+
 static int atapi_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
 {
        struct scsi_cmnd *cmd = qc->scsicmd;