isavar.h revision 47578 
1/*-
2 * Copyright (c) 1998 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$Id: isavar.h,v 1.7 1999/05/22 15:18:28 dfr Exp $
27 */
28
29#include "isa_if.h"
30
31/*
32 * ISA devices are partially ordered to ensure that devices which are
33 * sensitive to other driver probe routines are probed first. Plug and
34 * Play devices are added after devices with speculative probes so that
35 * the legacy hardware can claim resources allowing the Plug and Play
36 * hardware to choose different resources.
37 */
38#define ISA_ORDER_SENSITIVE	0 /* legacy sensitive hardware */
39#define ISA_ORDER_SPECULATIVE	1 /* legacy non-sensitive hardware */
40#define ISA_ORDER_PNP		2 /* plug-and-play hardware */
41
42#define	ISA_NPORT_IVARS	2
43#define	ISA_NMEM_IVARS	2
44#define	ISA_NIRQ_IVARS	2
45#define	ISA_NDRQ_IVARS	2
46
47enum isa_device_ivars {
48	ISA_IVAR_PORT,
49	ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
50	ISA_IVAR_PORT_1,
51	ISA_IVAR_PORTSIZE,
52	ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
53	ISA_IVAR_PORTSIZE_1,
54	ISA_IVAR_MADDR,
55	ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
56	ISA_IVAR_MADDR_1,
57	ISA_IVAR_MSIZE,
58	ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE,
59	ISA_IVAR_MSIZE_1,
60	ISA_IVAR_FLAGS,
61	ISA_IVAR_IRQ,
62	ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
63	ISA_IVAR_IRQ_1,
64	ISA_IVAR_DRQ,
65	ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
66	ISA_IVAR_DRQ_1
67};
68
69extern intrmask_t isa_irq_pending(void);
70extern intrmask_t isa_irq_mask(void);
71#ifdef __i386__
72extern void isa_wrap_old_drivers(void);
73#endif
74
75/*
76 * Simplified accessors for isa devices
77 */
78#define ISA_ACCESSOR(A, B, T)						\
79									\
80static __inline T isa_get_ ## A(device_t dev)				\
81{									\
82	uintptr_t v;							\
83	BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v);	\
84	return (T) v;							\
85}									\
86									\
87static __inline void isa_set_ ## A(device_t dev, T t)			\
88{									\
89	u_long v = (u_long) t;						\
90	BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v);	\
91}
92
93ISA_ACCESSOR(port, PORT, int)
94ISA_ACCESSOR(portsize, PORTSIZE, int)
95ISA_ACCESSOR(irq, IRQ, int)
96ISA_ACCESSOR(drq, DRQ, int)
97ISA_ACCESSOR(maddr, MADDR, int)
98ISA_ACCESSOR(msize, MSIZE, int)
99ISA_ACCESSOR(flags, FLAGS, int)
100