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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-24 23:22:59 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-24 23:22:59 +0100
commit2ebe1d9efed5f232afc8d00901d0959c9814bce3 (patch)
tree683864ff5a5e952fe5c2d3d811215175edfa17d4 /drivers/ide/ide-probe.c
parentff18b89bef76d291db594af3e27b6c91e6600b57 (diff)
downloadop-kernel-dev-2ebe1d9efed5f232afc8d00901d0959c9814bce3.zip
op-kernel-dev-2ebe1d9efed5f232afc8d00901d0959c9814bce3.tar.gz
ide: use try_to_identify() in ide_driveid_update()
* Pass pointer to buffer for IDENTIFY data to do_identify() and try_to_identify(). * Un-static try_to_identify() and use it in ide_driveid_update(). * Rename try_to_identify() to ide_dev_read_id(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-probe.c')
-rw-r--r--drivers/ide/ide-probe.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 3f9faef..9740670 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -181,16 +181,16 @@ static void ide_classify_atapi_dev(ide_drive_t *drive)
* do_identify - identify a drive
* @drive: drive to identify
* @cmd: command used
+ * @id: buffer for IDENTIFY data
*
* Called when we have issued a drive identify command to
* read and parse the results. This function is run with
* interrupts disabled.
*/
-static void do_identify(ide_drive_t *drive, u8 cmd)
+static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id)
{
ide_hwif_t *hwif = drive->hwif;
- u16 *id = drive->id;
char *m = (char *)&id[ATA_ID_PROD];
unsigned long flags;
int bswap = 1;
@@ -240,19 +240,19 @@ err_misc:
}
/**
- * try_to_identify - send ATA/ATAPI identify
+ * ide_dev_read_id - send ATA/ATAPI IDENTIFY command
* @drive: drive to identify
* @cmd: command to use
+ * @id: buffer for IDENTIFY data
*
- * try_to_identify() sends an ATA(PI) IDENTIFY request to a drive
- * and waits for a response.
+ * Sends an ATA(PI) IDENTIFY request to a drive and waits for a response.
*
* Returns: 0 device was identified
* 1 device timed-out (no response to identify request)
* 2 device aborted the command (refused to identify itself)
*/
-static int try_to_identify(ide_drive_t *drive, u8 cmd)
+int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id)
{
ide_hwif_t *hwif = drive->hwif;
struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -312,7 +312,7 @@ static int try_to_identify(ide_drive_t *drive, u8 cmd)
if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) {
/* drive returned ID */
- do_identify(drive, cmd);
+ do_identify(drive, cmd, id);
/* drive responded with ID */
rc = 0;
/* clear drive IRQ */
@@ -378,6 +378,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
{
ide_hwif_t *hwif = drive->hwif;
const struct ide_tp_ops *tp_ops = hwif->tp_ops;
+ u16 *id = drive->id;
int rc;
u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat;
@@ -413,11 +414,10 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) ||
present || cmd == ATA_CMD_ID_ATAPI) {
- /* send cmd and wait */
- if ((rc = try_to_identify(drive, cmd))) {
+ rc = ide_dev_read_id(drive, cmd, id);
+ if (rc)
/* failed: try again */
- rc = try_to_identify(drive,cmd);
- }
+ rc = ide_dev_read_id(drive, cmd, id);
stat = tp_ops->read_status(hwif);
@@ -432,7 +432,7 @@ static int do_probe (ide_drive_t *drive, u8 cmd)
msleep(50);
tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET);
(void)ide_busy_sleep(hwif, WAIT_WORSTCASE, 0);
- rc = try_to_identify(drive, cmd);
+ rc = ide_dev_read_id(drive, cmd, id);
}
/* ensure drive IRQ is clear */
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