*
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
module_param_named(fua, libata_fua, int, 0444);
MODULE_PARM_DESC(fua, "FUA support (0=off, 1=on)");
+static int ata_probe_timeout = ATA_TMOUT_INTERNAL / HZ;
+module_param(ata_probe_timeout, int, 0444);
+MODULE_PARM_DESC(ata_probe_timeout, "Set ATA probing timeout (seconds)");
+
MODULE_AUTHOR("Jeff Garzik");
MODULE_DESCRIPTION("Library module for ATA devices");
MODULE_LICENSE("GPL");
void ata_dev_select(struct ata_port *ap, unsigned int device,
unsigned int wait, unsigned int can_sleep)
{
- if (ata_msg_probe(ap)) {
+ if (ata_msg_probe(ap))
ata_port_printk(ap, KERN_INFO, "ata_dev_select: ENTER, ata%u: "
- "device %u, wait %u\n",
- ap->id, device, wait);
- }
+ "device %u, wait %u\n", ap->id, device, wait);
if (wait)
ata_wait_idle(ap);
*/
if (!cancel_delayed_work(&ap->port_task)) {
if (ata_msg_ctl(ap))
- ata_port_printk(ap, KERN_DEBUG, "%s: flush #2\n", __FUNCTION__);
+ ata_port_printk(ap, KERN_DEBUG, "%s: flush #2\n",
+ __FUNCTION__);
flush_workqueue(ata_wq);
}
spin_unlock_irqrestore(ap->lock, flags);
- rc = wait_for_completion_timeout(&wait, ATA_TMOUT_INTERNAL);
+ rc = wait_for_completion_timeout(&wait, ata_probe_timeout);
ata_port_flush_task(ap);
if (ata_msg_warn(ap))
ata_dev_printk(dev, KERN_WARNING,
- "qc timeout (cmd 0x%x)\n", command);
+ "qc timeout (cmd 0x%x)\n", command);
}
spin_unlock_irqrestore(ap->lock, flags);
if (qc->flags & ATA_QCFLAG_FAILED && !qc->err_mask) {
if (ata_msg_warn(ap))
- ata_dev_printk(dev, KERN_WARNING,
+ ata_dev_printk(dev, KERN_WARNING,
"zero err_mask for failed "
- "internal command, assuming AC_ERR_OTHER\n");
+ "internal command, assuming AC_ERR_OTHER\n");
qc->err_mask |= AC_ERR_OTHER;
}
return err_mask;
}
+/**
+ * ata_do_simple_cmd - execute simple internal command
+ * @dev: Device to which the command is sent
+ * @cmd: Opcode to execute
+ *
+ * Execute a 'simple' command, that only consists of the opcode
+ * 'cmd' itself, without filling any other registers
+ *
+ * LOCKING:
+ * Kernel thread context (may sleep).
+ *
+ * RETURNS:
+ * Zero on success, AC_ERR_* mask on failure
+ */
+unsigned int ata_do_simple_cmd(struct ata_device *dev, u8 cmd)
+{
+ struct ata_taskfile tf;
+
+ ata_tf_init(dev, &tf);
+
+ tf.command = cmd;
+ tf.flags |= ATA_TFLAG_DEVICE;
+ tf.protocol = ATA_PROT_NODATA;
+
+ return ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
+}
+
/**
* ata_pio_need_iordy - check if iordy needed
* @adev: ATA device
int rc;
if (ata_msg_ctl(ap))
- ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
- __FUNCTION__, ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
+ __FUNCTION__, ap->id, dev->devno);
ata_dev_select(ap, dev->devno, 1, 1); /* select device 0/1 */
return 0;
err_out:
- if (ata_msg_warn(ap))
+ if (ata_msg_warn(ap))
ata_dev_printk(dev, KERN_WARNING, "failed to IDENTIFY "
- "(%s, err_mask=0x%x)\n", reason, err_mask);
+ "(%s, err_mask=0x%x)\n", reason, err_mask);
return rc;
}
int i, rc;
if (!ata_dev_enabled(dev) && ata_msg_info(ap)) {
- ata_dev_printk(dev, KERN_INFO, "%s: ENTER/EXIT (host %u, dev %u) -- nodev\n",
- __FUNCTION__, ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_INFO,
+ "%s: ENTER/EXIT (host %u, dev %u) -- nodev\n",
+ __FUNCTION__, ap->id, dev->devno);
return 0;
}
if (ata_msg_probe(ap))
- ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
- __FUNCTION__, ap->id, dev->devno);
+ ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER, host %u, dev %u\n",
+ __FUNCTION__, ap->id, dev->devno);
/* print device capabilities */
if (ata_msg_probe(ap))
- ata_dev_printk(dev, KERN_DEBUG, "%s: cfg 49:%04x 82:%04x 83:%04x "
- "84:%04x 85:%04x 86:%04x 87:%04x 88:%04x\n",
+ ata_dev_printk(dev, KERN_DEBUG,
+ "%s: cfg 49:%04x 82:%04x 83:%04x 84:%04x "
+ "85:%04x 86:%04x 87:%04x 88:%04x\n",
__FUNCTION__,
id[49], id[82], id[83], id[84],
id[85], id[86], id[87], id[88]);
ata_id_major_version(id),
ata_mode_string(xfer_mask),
(unsigned long long)dev->n_sectors,
- dev->cylinders, dev->heads, dev->sectors);
+ dev->cylinders, dev->heads,
+ dev->sectors);
}
if (dev->id[59] & 0x100) {
dev->multi_count = dev->id[59] & 0xff;
if (ata_msg_info(ap))
- ata_dev_printk(dev, KERN_INFO, "ata%u: dev %u multi count %u\n",
- ap->id, dev->devno, dev->multi_count);
+ ata_dev_printk(dev, KERN_INFO,
+ "ata%u: dev %u multi count %u\n",
+ ap->id, dev->devno, dev->multi_count);
}
dev->cdb_len = 16;
rc = atapi_cdb_len(id);
if ((rc < 12) || (rc > ATAPI_CDB_LEN)) {
if (ata_msg_warn(ap))
- ata_dev_printk(dev, KERN_WARNING,
- "unsupported CDB len\n");
+ ata_dev_printk(dev, KERN_WARNING,
+ "unsupported CDB len\n");
rc = -EINVAL;
goto err_out_nosup;
}
err_out_nosup:
if (ata_msg_probe(ap))
- ata_dev_printk(dev, KERN_DEBUG,
- "%s: EXIT, err\n", __FUNCTION__);
+ ata_dev_printk(dev, KERN_DEBUG,
+ "%s: EXIT, err\n", __FUNCTION__);
return rc;
}
* Inherited from caller.
*/
-void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
+void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
* Inherited from caller.
*/
-void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
+void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data)
{
struct ata_port *ap = adev->ap;
* @buflen: buffer length
* @write_data: read/write
*
- * Transfer data from/to the device data register by PIO. Do the
+ * Transfer data from/to the device data register by PIO. Do the
* transfer with interrupts disabled.
*
* LOCKING:
return 0;
}
-/*
- * Execute a 'simple' command, that only consists of the opcode 'cmd' itself,
- * without filling any other registers
- */
-static int ata_do_simple_cmd(struct ata_device *dev, u8 cmd)
-{
- struct ata_taskfile tf;
- int err;
-
- ata_tf_init(dev, &tf);
-
- tf.command = cmd;
- tf.flags |= ATA_TFLAG_DEVICE;
- tf.protocol = ATA_PROT_NODATA;
-
- err = ata_exec_internal(dev, &tf, NULL, DMA_NONE, NULL, 0);
- if (err)
- ata_dev_printk(dev, KERN_ERR, "%s: ata command failed: %d\n",
- __FUNCTION__, err);
-
- return err;
-}
-
-static int ata_flush_cache(struct ata_device *dev)
+int ata_flush_cache(struct ata_device *dev)
{
+ unsigned int err_mask;
u8 cmd;
if (!ata_try_flush_cache(dev))
else
cmd = ATA_CMD_FLUSH;
- return ata_do_simple_cmd(dev, cmd);
+ err_mask = ata_do_simple_cmd(dev, cmd);
+ if (err_mask) {
+ ata_dev_printk(dev, KERN_ERR, "failed to flush cache\n");
+ return -EIO;
+ }
+
+ return 0;
}
static int ata_standby_drive(struct ata_device *dev)
{
- return ata_do_simple_cmd(dev, ATA_CMD_STANDBYNOW1);
+ unsigned int err_mask;
+
+ err_mask = ata_do_simple_cmd(dev, ATA_CMD_STANDBYNOW1);
+ if (err_mask) {
+ ata_dev_printk(dev, KERN_ERR, "failed to standby drive "
+ "(err_mask=0x%x)\n", err_mask);
+ return -EIO;
+ }
+
+ return 0;
}
static int ata_start_drive(struct ata_device *dev)
{
- return ata_do_simple_cmd(dev, ATA_CMD_IDLEIMMEDIATE);
+ unsigned int err_mask;
+
+ err_mask = ata_do_simple_cmd(dev, ATA_CMD_IDLEIMMEDIATE);
+ if (err_mask) {
+ ata_dev_printk(dev, KERN_ERR, "failed to start drive "
+ "(err_mask=0x%x)\n", err_mask);
+ return -EIO;
+ }
+
+ return 0;
}
/**
ap->msg_enable = 0x00FF;
#elif defined(ATA_DEBUG)
ap->msg_enable = ATA_MSG_DRV | ATA_MSG_INFO | ATA_MSG_CTL | ATA_MSG_WARN | ATA_MSG_ERR;
-#else
+#else
ap->msg_enable = ATA_MSG_DRV | ATA_MSG_ERR | ATA_MSG_WARN;
#endif
static int __init ata_init(void)
{
+ ata_probe_timeout *= HZ;
ata_wq = create_workqueue("ata");
if (!ata_wq)
return -ENOMEM;
projects / linux-2.6 / blobdiff