struct ata_device *dev);
static void ata_set_mode(struct ata_port *ap);
static void ata_dev_set_xfermode(struct ata_port *ap, struct ata_device *dev);
- static unsigned int ata_get_mode_mask(const struct ata_port *ap, int shift);
- static int fgb(u32 bitmap);
- static int ata_choose_xfer_mode(const struct ata_port *ap,
- u8 *xfer_mode_out,
- unsigned int *xfer_shift_out);
+static void ata_pio_error(struct ata_port *ap);
+ static unsigned int ata_dev_xfermask(struct ata_port *ap,
+ struct ata_device *dev);
static unsigned int ata_unique_id = 1;
static struct workqueue_struct *ata_wq;
}
/* print device info to dmesg */
- printk(KERN_INFO "ata%u: dev %u ATA-%d, max %s, %Lu sectors: CHS %d/%d/%d\n",
- ap->id, device,
- ata_id_major_version(dev->id),
- ata_mode_string(xfer_modes),
- (unsigned long long)dev->n_sectors,
- (int)dev->cylinders, (int)dev->heads, (int)dev->sectors);
-
+ if (print_info)
+ printk(KERN_INFO "ata%u: dev %u ATA-%d, "
+ "max %s, %Lu sectors: CHS %u/%u/%u\n",
+ ap->id, dev->devno,
+ ata_id_major_version(dev->id),
+ ata_mode_string(xfer_mask),
+ (unsigned long long)dev->n_sectors,
+ dev->cylinders, dev->heads, dev->sectors);
}
- dev->cdb_len = 16;
+ if (dev->id[59] & 0x100) {
+ dev->multi_count = dev->id[59] & 0xff;
+ DPRINTK("ata%u: dev %u multi count %u\n",
+ ap->id, device, dev->multi_count);
+ }
+
}
/* ATAPI-specific feature tests */
}
dev->cdb_len = (unsigned int) rc;
+ if (ata_id_cdb_intr(dev->id))
+ dev->flags |= ATA_DFLAG_CDB_INTR;
+
/* print device info to dmesg */
- printk(KERN_INFO "ata%u: dev %u ATAPI, max %s\n",
- ap->id, device,
- ata_mode_string(xfer_modes));
+ if (print_info)
+ printk(KERN_INFO "ata%u: dev %u ATAPI, max %s\n",
+ ap->id, dev->devno, ata_mode_string(xfer_mask));
}
ap->host->max_cmd_len = 0;
ap->ops->tf_load(ap, &qc->tf); /* load tf registers */
ap->ops->bmdma_setup(qc); /* set up bmdma */
ap->ops->bmdma_start(qc); /* initiate bmdma */
+ ap->hsm_task_state = HSM_ST_LAST;
break;
- case ATA_PROT_PIO: /* load tf registers, initiate polling pio */
- ata_qc_set_polling(qc);
- ata_tf_to_host(ap, &qc->tf);
- ap->hsm_task_state = HSM_ST;
- ata_port_queue_task(ap, ata_pio_task, ap, 0);
- break;
+ case ATA_PROT_PIO:
+ if (qc->tf.flags & ATA_TFLAG_POLLING)
+ ata_qc_set_polling(qc);
- case ATA_PROT_ATAPI:
- ata_qc_set_polling(qc);
ata_tf_to_host(ap, &qc->tf);
- ata_port_queue_task(ap, atapi_packet_task, ap, 0);
+
+ if (qc->tf.flags & ATA_TFLAG_WRITE) {
+ /* PIO data out protocol */
+ ap->hsm_task_state = HSM_ST_FIRST;
- ata_queue_pio_task(ap);
++ ata_port_queue_task(ap, ata_pio_task, ap, 0);
+
+ /* always send first data block using
+ * the ata_pio_task() codepath.
+ */
+ } else {
+ /* PIO data in protocol */
+ ap->hsm_task_state = HSM_ST;
+
+ if (qc->tf.flags & ATA_TFLAG_POLLING)
- ata_queue_pio_task(ap);
++ ata_port_queue_task(ap, ata_pio_task, ap, 0);
+
+ /* if polling, ata_pio_task() handles the rest.
+ * otherwise, interrupt handler takes over from here.
+ */
+ }
+
break;
+ case ATA_PROT_ATAPI:
case ATA_PROT_ATAPI_NODATA:
- ap->flags |= ATA_FLAG_NOINTR;
+ if (qc->tf.flags & ATA_TFLAG_POLLING)
+ ata_qc_set_polling(qc);
+
ata_tf_to_host(ap, &qc->tf);
- ata_port_queue_task(ap, atapi_packet_task, ap, 0);
+
+ ap->hsm_task_state = HSM_ST_FIRST;
+
+ /* send cdb by polling if no cdb interrupt */
+ if ((!(qc->dev->flags & ATA_DFLAG_CDB_INTR)) ||
+ (qc->tf.flags & ATA_TFLAG_POLLING))
- ata_queue_pio_task(ap);
++ ata_port_queue_task(ap, atapi_packet_task, ap, 0);
break;
case ATA_PROT_ATAPI_DMA:
- ap->flags |= ATA_FLAG_NOINTR;
+ WARN_ON(qc->tf.flags & ATA_TFLAG_POLLING);
+
ap->ops->tf_load(ap, &qc->tf); /* load tf registers */
ap->ops->bmdma_setup(qc); /* set up bmdma */
- ata_port_queue_task(ap, atapi_packet_task, ap, 0);
+ ap->hsm_task_state = HSM_ST_FIRST;
+
+ /* send cdb by polling if no cdb interrupt */
+ if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
- ata_queue_pio_task(ap);
++ ata_port_queue_task(ap, atapi_packet_task, ap, 0);
break;
default: