patch-2.1.44 linux/include/asm-mips/ide.h

• Lines: 120
• Date: Thu Jun 26 12:33:39 1997
• Orig file: v2.1.43/linux/include/asm-mips/ide.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.43/linux/include/asm-mips/ide.h linux/include/asm-mips/ide.h
@@ -0,0 +1,119 @@
+/*
+ *  linux/include/asm-mips/ide.h
+ *
+ *  Copyright (C) 1994-1996  Linus Torvalds & authors
+ */
+
+/*
+ *  This file contains the MIPS architecture specific IDE code.
+ */
+
+#ifndef __ASM_MIPS_IDE_H
+#define __ASM_MIPS_IDE_H
+
+#ifdef __KERNEL__
+
+typedef unsigned short ide_ioreg_t;
+
+#ifndef MAX_HWIFS
+#define MAX_HWIFS	4
+#endif
+
+#define ide_sti()	sti()
+
+static __inline__ int ide_default_irq(ide_ioreg_t base)
+{
+	switch (base) {
+		case 0x1f0: return 14;
+		case 0x170: return 15;
+		case 0x1e8: return 11;
+		case 0x168: return 10;
+		default:
+			return 0;
+	}
+}
+
+static __inline__ ide_ioreg_t ide_default_io_base(int index)
+{
+	switch (index) {
+		case 0:	return 0x1f0;
+		case 1:	return 0x170;
+		case 2: return 0x1e8;
+		case 3: return 0x168;
+		default:
+			return 0;
+	}
+}
+
+static __inline__ void ide_init_hwif_ports (ide_ioreg_t *p, ide_ioreg_t base, int *irq)
+{
+	ide_ioreg_t port = base;
+	int i = 8;
+
+	while (i--)
+		*p++ = port++;
+	*p++ = base + 0x206;
+	if (irq != NULL)
+		*irq = 0;
+}
+
+typedef union {
+	unsigned all			: 8;	/* all of the bits together */
+	struct {
+		unsigned head		: 4;	/* always zeros here */
+		unsigned unit		: 1;	/* drive select number, 0 or 1 */
+		unsigned bit5		: 1;	/* always 1 */
+		unsigned lba		: 1;	/* using LBA instead of CHS */
+		unsigned bit7		: 1;	/* always 1 */
+	} b;
+	} select_t;
+
+static __inline__ int ide_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *),
+			unsigned long flags, const char *device, void *dev_id)
+{
+	return request_irq(irq, handler, flags, device, dev_id);
+}			
+
+static __inline__ void ide_free_irq(unsigned int irq, void *dev_id)
+{
+	free_irq(irq, dev_id);
+}
+
+static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent)
+{
+	return check_region(from, extent);
+}
+
+static __inline__ void ide_request_region (ide_ioreg_t from, unsigned int extent, const char *name)
+{
+	request_region(from, extent, name);
+}
+
+static __inline__ void ide_release_region (ide_ioreg_t from, unsigned int extent)
+{
+	release_region(from, extent);
+}
+
+/*
+ * The following are not needed for the non-m68k ports
+ */
+static __inline__ int ide_ack_intr (ide_ioreg_t status_port, ide_ioreg_t irq_port)
+{
+	return(1);
+}
+
+static __inline__ void ide_fix_driveid(struct hd_driveid *id)
+{
+}
+
+static __inline__ void ide_release_lock (int *ide_lock)
+{
+}
+
+static __inline__ void ide_get_lock (int *ide_lock, void (*handler)(int, void *, struct pt_regs *), void *data)
+{
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_MIPS_IDE_H */