isavar.h revision 47613 
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 1.8 1999/05/28 09:25:02 dfr Exp $
27 */
28
29#ifndef _ISA_ISAVAR_H_
30#define _ISA_ISAVAR_H_
31
32#include "isa_if.h"
33#include <isa/pnp.h>
34
35#ifdef KERNEL
36
37/*
38 * ISA devices are partially ordered to ensure that devices which are
39 * sensitive to other driver probe routines are probed first. Plug and
40 * Play devices are added after devices with speculative probes so that
41 * the legacy hardware can claim resources allowing the Plug and Play
42 * hardware to choose different resources.
43 */
44#define ISA_ORDER_SENSITIVE	0 /* legacy sensitive hardware */
45#define ISA_ORDER_SPECULATIVE	1 /* legacy non-sensitive hardware */
46#define ISA_ORDER_PNP		2 /* plug-and-play hardware */
47
48#define	ISA_NPORT_IVARS	8
49#define	ISA_NMEM_IVARS	4
50#define	ISA_NIRQ_IVARS	2
51#define	ISA_NDRQ_IVARS	2
52
53enum isa_device_ivars {
54	ISA_IVAR_PORT,
55	ISA_IVAR_PORT_0 = ISA_IVAR_PORT,
56	ISA_IVAR_PORT_1,
57	ISA_IVAR_PORTSIZE,
58	ISA_IVAR_PORTSIZE_0 = ISA_IVAR_PORTSIZE,
59	ISA_IVAR_PORTSIZE_1,
60	ISA_IVAR_MADDR,
61	ISA_IVAR_MADDR_0 = ISA_IVAR_MADDR,
62	ISA_IVAR_MADDR_1,
63	ISA_IVAR_MSIZE,
64	ISA_IVAR_MSIZE_0 = ISA_IVAR_MSIZE,
65	ISA_IVAR_MSIZE_1,
66	ISA_IVAR_FLAGS,
67	ISA_IVAR_IRQ,
68	ISA_IVAR_IRQ_0 = ISA_IVAR_IRQ,
69	ISA_IVAR_IRQ_1,
70	ISA_IVAR_DRQ,
71	ISA_IVAR_DRQ_0 = ISA_IVAR_DRQ,
72	ISA_IVAR_DRQ_1,
73	ISA_IVAR_VENDORID,
74	ISA_IVAR_SERIAL,
75	ISA_IVAR_LOGICALID,
76	ISA_IVAR_COMPATID
77};
78
79extern intrmask_t isa_irq_pending(void);
80extern intrmask_t isa_irq_mask(void);
81#ifdef __i386__
82extern void isa_wrap_old_drivers(void);
83#endif
84
85/*
86 * Simplified accessors for isa devices
87 */
88#define ISA_ACCESSOR(A, B, T)						\
89									\
90static __inline T isa_get_ ## A(device_t dev)				\
91{									\
92	uintptr_t v;							\
93	BUS_READ_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, &v);	\
94	return (T) v;							\
95}									\
96									\
97static __inline void isa_set_ ## A(device_t dev, T t)			\
98{									\
99	u_long v = (u_long) t;						\
100	BUS_WRITE_IVAR(device_get_parent(dev), dev, ISA_IVAR_ ## B, v);	\
101}
102
103ISA_ACCESSOR(port, PORT, int)
104ISA_ACCESSOR(portsize, PORTSIZE, int)
105ISA_ACCESSOR(irq, IRQ, int)
106ISA_ACCESSOR(drq, DRQ, int)
107ISA_ACCESSOR(maddr, MADDR, int)
108ISA_ACCESSOR(msize, MSIZE, int)
109ISA_ACCESSOR(flags, FLAGS, int)
110ISA_ACCESSOR(vendorid, VENDORID, int)
111ISA_ACCESSOR(serial, SERIAL, int)
112ISA_ACCESSOR(logicalid, LOGICALID, int)
113ISA_ACCESSOR(compatid, COMPATID, int)
114
115void	isa_dmacascade __P((int chan));
116void	isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan));
117void	isa_dmainit __P((int chan, u_int bouncebufsize));
118void	isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan));
119int	isa_dma_acquire __P((int chan));
120void	isa_dma_release __P((int chan));
121int	isa_dmastatus __P((int chan));
122int	isa_dmastop __P((int chan));
123
124#endif /* KERNEL */
125
126#endif /* !_ISA_ISAVAR_H_ */
127