[linux.git] / include / asm-m68k / ide.h

/*
 *  linux/include/asm-m68k/ide.h
 *
 *  Copyright (C) 1994-1996  Linus Torvalds & authors
 */

/* Copyright(c) 1996 Kars de Jong */
/* Based on the ide driver from 1.2.13pl8 */

/*
 * Credits (alphabetical):
 *
 *  - Bjoern Brauel
 *  - Kars de Jong
 *  - Torsten Ebeling
 *  - Dwight Engen
 *  - Thorsten Floeck
 *  - Roman Hodek
 *  - Guenther Kelleter
 *  - Chris Lawrence
 *  - Michael Rausch
 *  - Christian Sauer
 *  - Michael Schmitz
 *  - Jes Soerensen
 *  - Michael Thurm
 *  - Geert Uytterhoeven
 */

#ifndef _M68K_IDE_H
#define _M68K_IDE_H

#ifdef __KERNEL__


#include <asm/setup.h>
#include <asm/io.h>
#include <asm/irq.h>

#ifdef CONFIG_ATARI
#include <linux/interrupt.h>
#include <asm/atari_stdma.h>
#endif

#ifdef CONFIG_MAC
#include <asm/macints.h>
#endif

#ifndef MAX_HWIFS
#define MAX_HWIFS	4	/* same as the other archs */
#endif

/*
 * Get rid of defs from io.h - ide has its private and conflicting versions
 * Since so far no single m68k platform uses ISA/PCI I/O space for IDE, we
 * always use the `raw' MMIO versions
 */
#undef inb
#undef inw
#undef insw
#undef inl
#undef insl
#undef outb
#undef outw
#undef outsw
#undef outl
#undef outsl
#undef readb
#undef readw
#undef readl
#undef writeb
#undef writew
#undef writel

#define inb				in_8
#define inw				in_be16
#define insw(port, addr, n)		raw_insw((u16 *)port, addr, n)
#define inl				in_be32
#define insl(port, addr, n)		raw_insl((u32 *)port, addr, n)
#define outb(val, port)			out_8(port, val)
#define outw(val, port)			out_be16(port, val)
#define outsw(port, addr, n)		raw_outsw((u16 *)port, addr, n)
#define outl(val, port)			out_be32(port, val)
#define outsl(port, addr, n)		raw_outsl((u32 *)port, addr, n)
#define readb				in_8
#define readw				in_be16
#define __ide_mm_insw(port, addr, n)	raw_insw((u16 *)port, addr, n)
#define readl				in_be32
#define __ide_mm_insl(port, addr, n)	raw_insl((u32 *)port, addr, n)
#define writeb(val, port)		out_8(port, val)
#define writew(val, port)		out_be16(port, val)
#define __ide_mm_outsw(port, addr, n)	raw_outsw((u16 *)port, addr, n)
#define writel(val, port)		out_be32(port, val)
#define __ide_mm_outsl(port, addr, n)	raw_outsl((u32 *)port, addr, n)
#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
#define insw_swapw(port, addr, n)	raw_insw_swapw((u16 *)port, addr, n)
#define outsw_swapw(port, addr, n)	raw_outsw_swapw((u16 *)port, addr, n)
#endif


/* Q40 and Atari have byteswapped IDE busses and since many interesting
 * values in the identification string are text, chars and words they
 * happened to be almost correct without swapping.. However *_capacity
 * is needed for drives over 8 GB. RZ */
#if defined(CONFIG_Q40) || defined(CONFIG_ATARI)
#define M68K_IDE_SWAPW  (MACH_IS_Q40 || MACH_IS_ATARI)
#endif

#ifdef CONFIG_BLK_DEV_FALCON_IDE
#define IDE_ARCH_LOCK

extern int falconide_intr_lock;

static __inline__ void ide_release_lock (void)
{
	if (MACH_IS_ATARI) {
		if (falconide_intr_lock == 0) {
			printk("ide_release_lock: bug\n");
			return;
		}
		falconide_intr_lock = 0;
		stdma_release();
	}
}

static __inline__ void
ide_get_lock(irq_handler_t handler, void *data)
{
	if (MACH_IS_ATARI) {
		if (falconide_intr_lock == 0) {
			if (in_interrupt() > 0)
				panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
			stdma_lock(handler, data);
			falconide_intr_lock = 1;
		}
	}
}
#endif /* CONFIG_BLK_DEV_FALCON_IDE */

#define IDE_ARCH_ACK_INTR
#define ide_ack_intr(hwif)	((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)

#endif /* __KERNEL__ */
#endif /* _M68K_IDE_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/include/asm-m68k/ide.h
	3	*
	4	* Copyright (C) 1994-1996 Linus Torvalds & authors
	5	*/
	6
	7	/* Copyright(c) 1996 Kars de Jong */
	8	/* Based on the ide driver from 1.2.13pl8 */
	9
	10	/*
	11	* Credits (alphabetical):
	12	*
	13	* - Bjoern Brauel
	14	* - Kars de Jong
	15	* - Torsten Ebeling
	16	* - Dwight Engen
	17	* - Thorsten Floeck
	18	* - Roman Hodek
	19	* - Guenther Kelleter
	20	* - Chris Lawrence
	21	* - Michael Rausch
	22	* - Christian Sauer
	23	* - Michael Schmitz
	24	* - Jes Soerensen
	25	* - Michael Thurm
	26	* - Geert Uytterhoeven
	27	*/
	28
	29	#ifndef _M68K_IDE_H
	30	#define _M68K_IDE_H
	31
	32	#ifdef __KERNEL__
	33
1da177e4 LT	34
	35	#include <asm/setup.h>
	36	#include <asm/io.h>
	37	#include <asm/irq.h>
	38
	39	#ifdef CONFIG_ATARI
	40	#include <linux/interrupt.h>
	41	#include <asm/atari_stdma.h>
	42	#endif
	43
	44	#ifdef CONFIG_MAC
	45	#include <asm/macints.h>
	46	#endif
	47
	48	#ifndef MAX_HWIFS
	49	#define MAX_HWIFS 4 /* same as the other archs */
	50	#endif
	51
	52	/*
	53	* Get rid of defs from io.h - ide has its private and conflicting versions
	54	* Since so far no single m68k platform uses ISA/PCI I/O space for IDE, we
	55	* always use the `raw' MMIO versions
	56	*/
	57	#undef inb
	58	#undef inw
	59	#undef insw
	60	#undef inl
	61	#undef insl
	62	#undef outb
	63	#undef outw
	64	#undef outsw
	65	#undef outl
	66	#undef outsl
	67	#undef readb
	68	#undef readw
	69	#undef readl
	70	#undef writeb
	71	#undef writew
	72	#undef writel
	73
	74	#define inb in_8
	75	#define inw in_be16
	76	#define insw(port, addr, n) raw_insw((u16 *)port, addr, n)
	77	#define inl in_be32
	78	#define insl(port, addr, n) raw_insl((u32 *)port, addr, n)
	79	#define outb(val, port) out_8(port, val)
	80	#define outw(val, port) out_be16(port, val)
	81	#define outsw(port, addr, n) raw_outsw((u16 *)port, addr, n)
	82	#define outl(val, port) out_be32(port, val)
	83	#define outsl(port, addr, n) raw_outsl((u32 *)port, addr, n)
	84	#define readb in_8
	85	#define readw in_be16
	86	#define __ide_mm_insw(port, addr, n) raw_insw((u16 *)port, addr, n)
	87	#define readl in_be32
	88	#define __ide_mm_insl(port, addr, n) raw_insl((u32 *)port, addr, n)
	89	#define writeb(val, port) out_8(port, val)
	90	#define writew(val, port) out_be16(port, val)
	91	#define __ide_mm_outsw(port, addr, n) raw_outsw((u16 *)port, addr, n)
	92	#define writel(val, port) out_be32(port, val)
	93	#define __ide_mm_outsl(port, addr, n) raw_outsl((u32 *)port, addr, n)
	94	#if defined(CONFIG_ATARI) \|\| defined(CONFIG_Q40)
	95	#define insw_swapw(port, addr, n) raw_insw_swapw((u16 *)port, addr, n)
	96	#define outsw_swapw(port, addr, n) raw_outsw_swapw((u16 *)port, addr, n)
	97	#endif
98
99
100	/* Q40 and Atari have byteswapped IDE busses and since many interesting
101	* values in the identification string are text, chars and words they
102	* happened to be almost correct without swapping.. However *_capacity
103	* is needed for drives over 8 GB. RZ */
104	#if defined(CONFIG_Q40) \|\| defined(CONFIG_ATARI)
105	#define M68K_IDE_SWAPW (MACH_IS_Q40 \|\| MACH_IS_ATARI)
106	#endif
107
108	#ifdef CONFIG_BLK_DEV_FALCON_IDE
109	#define IDE_ARCH_LOCK
110
111	extern int falconide_intr_lock;
112
113	static __inline__ void ide_release_lock (void)
114	{
115	if (MACH_IS_ATARI) {
116	if (falconide_intr_lock == 0) {
117	printk("ide_release_lock: bug\n");
118	return;
119	}
120	falconide_intr_lock = 0;
121	stdma_release();
122	}
123	}
124
125	static __inline__ void
40220c1a	126	ide_get_lock(irq_handler_t handler, void *data)
1da177e4 LT	127	{
	128	if (MACH_IS_ATARI) {
	129	if (falconide_intr_lock == 0) {
	130	if (in_interrupt() > 0)
	131	panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
	132	stdma_lock(handler, data);
	133	falconide_intr_lock = 1;
	134	}
	135	}
	136	}
	137	#endif /* CONFIG_BLK_DEV_FALCON_IDE */
	138
	139	#define IDE_ARCH_ACK_INTR
	140	#define ide_ack_intr(hwif) ((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
	141
	142	#endif /* __KERNEL__ */
	143	#endif /* _M68K_IDE_H */