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-rw-r--r--sys/dev/pci/pciidereg.h15
1 files changed, 9 insertions, 6 deletions
diff --git a/sys/dev/pci/pciidereg.h b/sys/dev/pci/pciidereg.h
index 651e9896713..6b40df6fc05 100644
--- a/sys/dev/pci/pciidereg.h
+++ b/sys/dev/pci/pciidereg.h
@@ -1,4 +1,4 @@
-/* $NetBSD: pciidereg.h,v 1.1 1998/03/04 06:35:11 cgd Exp $ */
+/* $NetBSD: pciidereg.h,v 1.2 1998/03/04 19:17:10 cgd Exp $ */
/*
* Copyright (c) 1998 Christopher G. Demetriou. All rights reserved.
@@ -35,8 +35,9 @@
*
* Author: Christopher G. Demetriou, March 2, 1998.
*
- * See "PCI IDE Controller Specification, Revision 1.0 3/4/94" from the
- * PCI SIG.
+ * See "PCI IDE Controller Specification, Revision 1.0 3/4/94" and
+ * "Programming Interface for Bus Master IDE Controller, Revision 1.0
+ * 5/16/94" from the PCI SIG.
*/
/*
@@ -46,19 +47,21 @@
#define PCIIDE_NUM_CHANNELS 2
/*
- * PCI base address register locations (all are per channel).
+ * PCI base address register locations (some are per-channel).
*/
#define PCIIDE_REG_CMD_BASE(chan) (0x10 + (8 * (chan)))
#define PCIIDE_REG_CTL_BASE(chan) (0x14 + (8 * (chan)))
+#define PCIIDE_REG_BUS_MASTER_DMA 0x20
/*
- * Bits in the PCI Programming Interface register (some are per channel).
+ * Bits in the PCI Programming Interface register (some are per-channel).
*/
#define PCIIDE_INTERFACE_PCI(chan) (0x01 << (2 * (chan)))
#define PCIIDE_INTERFACE_SETTABLE(chan) (0x02 << (2 * (chan)))
+#define PCIIDE_INTERFACE_BUS_MASTER_DMA 0x80
/*
- * Compatibility address/IRQ definitions (some are per channel).
+ * Compatibility address/IRQ definitions (some are per-channel).
*/
#define PCIIDE_COMPAT_CMD_BASE(chan) ((chan) == 0 ? 0x1f0 : 0x170)
#define PCIIDE_COMPAT_CMD_SIZE 8