diff options
| -rw-r--r-- | drivers/ata/libata-core.c | 59 | ||||
| -rw-r--r-- | include/linux/libata.h | 7 |
2 files changed, 66 insertions, 0 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 93e7b99d781..1e1140c9618 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1791,6 +1791,56 @@ err_out_nosup: } /** + * ata_cable_40wire - return 40pin cable type + * @ap: port + * + * Helper method for drivers which want to hardwire 40 pin cable + * detection. + */ + +int ata_cable_40wire(struct ata_port *ap) +{ + return ATA_CBL_PATA40; +} + +/** + * ata_cable_80wire - return 40pin cable type + * @ap: port + * + * Helper method for drivers which want to hardwire 80 pin cable + * detection. + */ + +int ata_cable_80wire(struct ata_port *ap) +{ + return ATA_CBL_PATA80; +} + +/** + * ata_cable_unknown - return unknown PATA cable. + * @ap: port + * + * Helper method for drivers which have no PATA cable detection. + */ + +int ata_cable_unknown(struct ata_port *ap) +{ + return ATA_CBL_PATA_UNK; +} + +/** + * ata_cable_sata - return SATA cable type + * @ap: port + * + * Helper method for drivers which have SATA cables + */ + +int ata_cable_sata(struct ata_port *ap) +{ + return ATA_CBL_SATA; +} + +/** * ata_bus_probe - Reset and probe ATA bus * @ap: Bus to probe * @@ -1860,6 +1910,10 @@ int ata_bus_probe(struct ata_port *ap) goto fail; } + /* Now ask for the cable type as PDIAG- should have been released */ + if (ap->ops->cable_detect) + ap->cbl = ap->ops->cable_detect(ap); + /* After the identify sequence we can now set up the devices. We do this in the normal order so that the user doesn't get confused */ @@ -6453,3 +6507,8 @@ EXPORT_SYMBOL_GPL(ata_dummy_irq_on); EXPORT_SYMBOL_GPL(ata_irq_ack); EXPORT_SYMBOL_GPL(ata_dummy_irq_ack); EXPORT_SYMBOL_GPL(ata_dev_try_classify); + +EXPORT_SYMBOL_GPL(ata_cable_40wire); +EXPORT_SYMBOL_GPL(ata_cable_80wire); +EXPORT_SYMBOL_GPL(ata_cable_unknown); +EXPORT_SYMBOL_GPL(ata_cable_sata); diff --git a/include/linux/libata.h b/include/linux/libata.h index 84787cad860..3451ef97a93 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -616,6 +616,8 @@ struct ata_port_operations { void (*post_set_mode) (struct ata_port *ap); + int (*cable_detect) (struct ata_port *ap); + int (*check_atapi_dma) (struct ata_queued_cmd *qc); void (*bmdma_setup) (struct ata_queued_cmd *qc); @@ -834,6 +836,11 @@ extern u8 ata_dummy_irq_on(struct ata_port *ap); extern u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq); extern u8 ata_dummy_irq_ack(struct ata_port *ap, unsigned int chk_drq); +extern int ata_cable_40wire(struct ata_port *ap); +extern int ata_cable_80wire(struct ata_port *ap); +extern int ata_cable_sata(struct ata_port *ap); +extern int ata_cable_unknown(struct ata_port *ap); + /* * Timing helpers */ |