tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
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/*
49 * Get rid of defs from io.h - ide has its private and conflicting versions
50 * Since so far no single m68k platform uses ISA/PCI I/O space for IDE, we
51 * always use the `raw' MMIO versions
52 */
53#undef inb
54#undef inw
55#undef insw
56#undef inl
57#undef insl
58#undef outb
59#undef outw
60#undef outsw
61#undef outl
62#undef outsl
63#undef readb
64#undef readw
65#undef readl
66#undef writeb
67#undef writew
68#undef writel
69
70#define inb in_8
71#define inw in_be16
72#define insw(port, addr, n) raw_insw((u16 *)port, addr, n)
73#define inl in_be32
74#define insl(port, addr, n) raw_insl((u32 *)port, addr, n)
75#define outb(val, port) out_8(port, val)
76#define outw(val, port) out_be16(port, val)
77#define outsw(port, addr, n) raw_outsw((u16 *)port, addr, n)
78#define outl(val, port) out_be32(port, val)
79#define outsl(port, addr, n) raw_outsl((u32 *)port, addr, n)
80#define readb in_8
81#define readw in_be16
82#define __ide_mm_insw(port, addr, n) raw_insw((u16 *)port, addr, n)
83#define readl in_be32
84#define __ide_mm_insl(port, addr, n) raw_insl((u32 *)port, addr, n)
85#define writeb(val, port) out_8(port, val)
86#define writew(val, port) out_be16(port, val)
87#define __ide_mm_outsw(port, addr, n) raw_outsw((u16 *)port, addr, n)
88#define writel(val, port) out_be32(port, val)
89#define __ide_mm_outsl(port, addr, n) raw_outsl((u32 *)port, addr, n)
90#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
91#define insw_swapw(port, addr, n) raw_insw_swapw((u16 *)port, addr, n)
92#define outsw_swapw(port, addr, n) raw_outsw_swapw((u16 *)port, addr, n)
93#endif
94
95
96/* Q40 and Atari have byteswapped IDE busses and since many interesting
97 * values in the identification string are text, chars and words they
98 * happened to be almost correct without swapping.. However *_capacity
99 * is needed for drives over 8 GB. RZ */
100#if defined(CONFIG_Q40) || defined(CONFIG_ATARI)
101#define M68K_IDE_SWAPW (MACH_IS_Q40 || MACH_IS_ATARI)
102#endif
103
104#ifdef CONFIG_BLK_DEV_FALCON_IDE
105#define IDE_ARCH_LOCK
106
107extern int falconide_intr_lock;
108
109static __inline__ void ide_release_lock (void)
110{
111 if (MACH_IS_ATARI) {
112 if (falconide_intr_lock == 0) {
113 printk("ide_release_lock: bug\n");
114 return;
115 }
116 falconide_intr_lock = 0;
117 stdma_release();
118 }
119}
120
121static __inline__ void
122ide_get_lock(irq_handler_t handler, void *data)
123{
124 if (MACH_IS_ATARI) {
125 if (falconide_intr_lock == 0) {
126 if (in_interrupt() > 0)
127 panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
128 stdma_lock(handler, data);
129 falconide_intr_lock = 1;
130 }
131 }
132}
133#endif /* CONFIG_BLK_DEV_FALCON_IDE */
134
135#define IDE_ARCH_ACK_INTR
136#define ide_ack_intr(hwif) ((hwif)->ack_intr ? (hwif)->ack_intr(hwif) : 1)
137
138#endif /* __KERNEL__ */
139#endif /* _M68K_IDE_H */