patch-1.3.94 linux/include/asm-m68k/amihdreg.h

• Lines: 32
• Date: Mon Apr 1 00:50:11 1996
• Orig file: v1.3.93/linux/include/asm-m68k/amihdreg.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.93/linux/include/asm-m68k/amihdreg.h linux/include/asm-m68k/amihdreg.h
@@ -0,0 +1,31 @@
+#ifndef _LINUX_AMIHDREG_H
+#define _LINUX_AMIHDREG_H
+
+/*
+ * This file contains some defines for the Amiga IDE hd controller.
+ * Various sources. Check out some definitions (see comments with
+ * a ques).
+ */
+
+#define IDE_DISABLE_IRQ  0x02
+#define IDE_ENABLE_IRQ   0x00
+ 
+/* Bases of the hard drive controller */
+#define HD_BASE_A4000   0xdd2020
+#define HD_BASE_A1200   0xda0000
+
+/* Offsets from one of the above bases */
+#define AMI_HD_ERROR	(0x06)		/* see err-bits */
+#define AMI_HD_NSECTOR	(0x0a)		/* nr of sectors to read/write */
+#define AMI_HD_SECTOR	(0x0e)		/* starting sector */
+#define AMI_HD_LCYL	(0x12)		/* starting cylinder */
+#define AMI_HD_HCYL	(0x16)		/* high byte of starting cyl */
+#define AMI_HD_SELECT	(0x1a)		/* 101dhhhh , d=drive, hhhh=head */
+#define AMI_HD_STATUS	(0x1e)		/* see status-bits */
+#define AMI_HD_CMD	(0x101a)
+
+/* These are at different offsets from the base */
+#define HD_A4000_IRQ	(0xdd3020)	/* MSB = 1, Harddisk is source of interrupt */
+#define HD_A1200_IRQ	(0xda9000)	/* MSB = 1, Harddisk is source of interrupt */
+
+#endif