diff --git a/include/linux/libata.h b/include/linux/libata.h
index 84787ca..3451ef9 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -616,6 +616,8 @@
 
 	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_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
  */