This splits set_mode into do_set_mode and the wrapper so that a driver
can call the standard method inside its own. This in theory also
obsoletes ->post_set_mode().
Needed for ACPI driver.
Signed-off-by: Alan Cox <[EMAIL PROTECTED]>
diff -u --new-file --recursive --exclude-from /usr/src/exclude
linux.vanilla-2.6.20-mm2/drivers/ata/libata-core.c
linux-2.6.20-mm2/drivers/ata/libata-core.c
--- linux.vanilla-2.6.20-mm2/drivers/ata/libata-core.c 2007-02-20
13:37:58.000000000 +0000
+++ linux-2.6.20-mm2/drivers/ata/libata-core.c 2007-02-20 14:28:14.000000000
+0000
@@ -2381,12 +2437,13 @@
}
/**
- * ata_set_mode - Program timings and issue SET FEATURES - XFER
+ * ata_do_set_mode - Program timings and issue SET FEATURES - XFER
* @ap: port on which timings will be programmed
* @r_failed_dev: out paramter for failed device
*
- * Set ATA device disk transfer mode (PIO3, UDMA6, etc.). If
- * ata_set_mode() fails, pointer to the failing device is
+ * Standard implementation of the function used to tune and set
+ * ATA device disk transfer mode (PIO3, UDMA6, etc.). If
+ * ata_dev_set_mode() fails, pointer to the failing device is
* returned in @r_failed_dev.
*
* LOCKING:
@@ -2395,14 +2452,12 @@
* RETURNS:
* 0 on success, negative errno otherwise
*/
-int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+
+int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
{
struct ata_device *dev;
int i, rc = 0, used_dma = 0, found = 0;
- /* has private set_mode? */
- if (ap->ops->set_mode)
- return ap->ops->set_mode(ap, r_failed_dev);
/* step 1: calculate xfer_mask */
for (i = 0; i < ATA_MAX_DEVICES; i++) {
@@ -2488,6 +2543,29 @@
}
/**
+ * ata_set_mode - Program timings and issue SET FEATURES - XFER
+ * @ap: port on which timings will be programmed
+ * @r_failed_dev: out paramter for failed device
+ *
+ * Set ATA device disk transfer mode (PIO3, UDMA6, etc.). If
+ * ata_set_mode() fails, pointer to the failing device is
+ * returned in @r_failed_dev.
+ *
+ * LOCKING:
+ * PCI/etc. bus probe sem.
+ *
+ * RETURNS:
+ * 0 on success, negative errno otherwise
+ */
+int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
+{
+ /* has private set_mode? */
+ if (ap->ops->set_mode)
+ return ap->ops->set_mode(ap, r_failed_dev);
+ return ata_do_set_mode(ap, r_failed_dev);
+}
+
+/**
* ata_tf_to_host - issue ATA taskfile to host controller
* @ap: port to which command is being issued
* @tf: ATA taskfile register set
@@ -6241,6 +6348,7 @@
EXPORT_SYMBOL_GPL(ata_exec_command);
EXPORT_SYMBOL_GPL(ata_port_start);
EXPORT_SYMBOL_GPL(ata_interrupt);
+EXPORT_SYMBOL_GPL(ata_do_set_mode);
EXPORT_SYMBOL_GPL(ata_data_xfer);
EXPORT_SYMBOL_GPL(ata_data_xfer_noirq);
EXPORT_SYMBOL_GPL(ata_qc_prep);
diff -u --new-file --recursive --exclude-from /usr/src/exclude
linux.vanilla-2.6.20-mm2/include/linux/libata.h
linux-2.6.20-mm2/include/linux/libata.h
--- linux.vanilla-2.6.20-mm2/include/linux/libata.h 2007-02-20
13:38:11.000000000 +0000
+++ linux-2.6.20-mm2/include/linux/libata.h 2007-02-20 14:03:24.000000000
+0000
@@ -819,6 +822,7 @@
extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
int queue_depth);
extern struct ata_device *ata_dev_pair(struct ata_device *adev);
+extern int ata_do_set_mode(struct ata_port *ap, struct ata_device
**r_failed_dev);
extern u8 ata_irq_on(struct ata_port *ap);
extern u8 ata_dummy_irq_on(struct ata_port *ap);
extern u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq);
-
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