From 7944ea9522ce0ea32d57894b3dc2540b0bdca66e Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 2 Feb 2006 18:20:00 +0900 Subject: [PATCH] [PATCH] libata: add probeinit component operation to ata_drive_probe_reset() This patch adds probeinit component operation to ata_drive_probe_reset(). If present, this new operation is called before performing any reset. The operations's roll is to prepare @ap for following probe-reset operations. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/scsi/libata-core.c | 9 +++++++-- include/linux/libata.h | 2 ++ 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index 99f4bf6022ee..c36c5a9a4617 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c @@ -2485,7 +2485,8 @@ int ata_std_probe_reset(struct ata_port *ap, unsigned int *classes) if (ap->flags & ATA_FLAG_SATA && ap->ops->scr_read) hardreset = sata_std_hardreset; - return ata_drive_probe_reset(ap, ata_std_softreset, hardreset, + return ata_drive_probe_reset(ap, NULL, + ata_std_softreset, hardreset, ata_std_postreset, classes); } @@ -2524,6 +2525,7 @@ static int do_probe_reset(struct ata_port *ap, ata_reset_fn_t reset, /** * ata_drive_probe_reset - Perform probe reset with given methods * @ap: port to reset + * @probeinit: probeinit method (can be NULL) * @softreset: softreset method (can be NULL) * @hardreset: hardreset method (can be NULL) * @postreset: postreset method (can be NULL) @@ -2552,12 +2554,15 @@ static int do_probe_reset(struct ata_port *ap, ata_reset_fn_t reset, * if classification fails, and any error code from reset * methods. */ -int ata_drive_probe_reset(struct ata_port *ap, +int ata_drive_probe_reset(struct ata_port *ap, ata_probeinit_fn_t probeinit, ata_reset_fn_t softreset, ata_reset_fn_t hardreset, ata_postreset_fn_t postreset, unsigned int *classes) { int rc = -EINVAL; + if (probeinit) + probeinit(ap); + if (softreset) { rc = do_probe_reset(ap, softreset, postreset, classes); if (rc == 0) diff --git a/include/linux/libata.h b/include/linux/libata.h index f4cd1eb734a0..e8f29cefc351 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -244,6 +244,7 @@ struct ata_queued_cmd; /* typedefs */ typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc); +typedef void (*ata_probeinit_fn_t)(struct ata_port *); typedef int (*ata_reset_fn_t)(struct ata_port *, int, unsigned int *); typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *); @@ -484,6 +485,7 @@ extern void __sata_phy_reset(struct ata_port *ap); extern void sata_phy_reset(struct ata_port *ap); extern void ata_bus_reset(struct ata_port *ap); extern int ata_drive_probe_reset(struct ata_port *ap, + ata_probeinit_fn_t probeinit, ata_reset_fn_t softreset, ata_reset_fn_t hardreset, ata_postreset_fn_t postreset, unsigned int *classes); extern int ata_std_softreset(struct ata_port *ap, int verbose,