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[PATCH] libata: implement ata_drive_probe_reset()

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Most low level drivers share supported reset/classify actions and
sequence.  This patch implements ata_drive_probe_reset() which helps
constructing ->probe_reset from three component operations -
softreset, hardreset and postreset.  This minimizes duplicate code and
yet allows flexibility if needed. The three component operations can
also be shared by EH later.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tejun Heo
2006-01-24 17:05:22 +09:00
committed by Jeff Garzik
parent c19ba8af4f
commit a62c0fc526
2 changed files with 94 additions and 0 deletions
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5
include/linux/libata.h
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@@ -241,6 +241,8 @@ struct ata_queued_cmd;
/* typedefs */
typedef void (*ata_qc_cb_t) (struct ata_queued_cmd *qc);
typedef int (*ata_reset_fn_t)(struct ata_port *, int, unsigned int *);
typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *);
struct ata_ioports {
unsigned long cmd_addr;
@@ -478,6 +480,9 @@ extern void ata_port_probe(struct ata_port *);
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_reset_fn_t softreset, ata_reset_fn_t hardreset,
ata_postreset_fn_t postreset, unsigned int *classes);
extern void ata_port_disable(struct ata_port *);
extern void ata_std_ports(struct ata_ioports *ioaddr);
#ifdef CONFIG_PCI