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-rw-r--r--drivers/ata/libata-core.c59
1 files changed, 59 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);