1 /*-
2 * Copyright (c) 1991 The Regents of the University of California.
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 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
34 * $FreeBSD$
35 */
36
37 #ifndef _I386_ISA_ISA_DEVICE_H_
38 #define _I386_ISA_ISA_DEVICE_H_
39
40 /*
41 * ISA Bus Autoconfiguration
42 */
43
44 typedef void ointhand2_t __P((int unit));
45
46 /*
47 * Per device structure.
48 *
49 * XXX Note: id_conflicts should either become an array of things we're
50 * specifically allowed to conflict with or be subsumed into some
51 * more powerful mechanism for detecting and dealing with multiple types
52 * of non-fatal conflict. -jkh XXX
53 */
54 struct isa_device {
55 int id_id; /* device id */
56 struct isa_driver *id_driver;
57 int id_iobase; /* base i/o address */
58 u_int id_irq; /* interrupt request */
59 int id_drq; /* DMA request */
60 caddr_t id_maddr; /* physical i/o memory address on bus (if any)*/
61 int id_msize; /* size of i/o memory */
62 union {
63 inthand2_t *id_i;
64 ointhand2_t *id_oi;
65 } id_iu; /* interrupt interface routine */
66 #define id_intr id_iu.id_i
67 #define id_ointr id_iu.id_oi
68 int id_unit; /* unit number */
69 int id_flags; /* flags */
70 int id_scsiid; /* scsi id if needed */
71 int id_alive; /* device is present */
72 #define RI_FAST 1 /* fast interrupt handler */
73 u_int id_ri_flags; /* flags for register_intr() */
74 int id_reconfig; /* hot eject device support (such as PCMCIA) */
75 int id_enabled; /* is device enabled */
76 int id_conflicts; /* we're allowed to conflict with things */
77 struct isa_device *id_next; /* used in isa_devlist in userconfig() */
78 };
79
80 /*
81 * Bits to specify the type and amount of conflict checking.
82 */
83 #define CC_ATTACH (1 << 0)
84 #define CC_DRQ (1 << 1)
85 #define CC_IOADDR (1 << 2)
86 #define CC_IRQ (1 << 3)
87 #define CC_MEMADDR (1 << 4)
88 #define CC_QUIET (1 << 5)
89
90 /*
91 * Per-driver structure.
92 *
93 * Each device driver defines entries for a set of routines
94 * as well as an array of types which are acceptable to it.
95 * These are used at boot time by the configuration program.
96 */
97 struct isa_driver {
98 int (*probe) __P((struct isa_device *idp));
99 /* test whether device is present */
100 int (*attach) __P((struct isa_device *idp));
101 /* setup driver for a device */
102 char *name; /* device name */
103 int sensitive_hw; /* true if other probes confuse us */
104 };
105
106 #ifdef KERNEL
107
108 extern struct isa_device isa_biotab_fdc[];
109 extern struct isa_device isa_biotab_wdc[];
110 extern struct isa_device isa_devtab_bio[];
111 extern struct isa_device isa_devtab_net[];
112 extern struct isa_device isa_devtab_cam[];
113 extern struct isa_device isa_devtab_null[];
114 extern struct isa_device isa_devtab_tty[];
115
116 struct isa_device *
117 find_display __P((void));
118 struct isa_device *
119 find_isadev __P((struct isa_device *table, struct isa_driver *driverp,
120 int unit));
121 int haveseen_isadev __P((struct isa_device *dvp, u_int checkbits));
122 void isa_configure __P((void));
123 void isa_dmacascade __P((int chan));
124 void isa_dmadone __P((int flags, caddr_t addr, int nbytes, int chan));
125 void isa_dmainit __P((int chan, u_int bouncebufsize));
126 void isa_dmastart __P((int flags, caddr_t addr, u_int nbytes, int chan));
127 int isa_dma_acquire __P((int chan));
128 void isa_dma_release __P((int chan));
129 int isa_dmastatus __P((int chan));
130 int isa_dmastop __P((int chan));
131 void reconfig_isadev __P((struct isa_device *isdp, u_int *mp));
132
133 #endif /* KERNEL */
134
135 #endif /* !_I386_ISA_ISA_DEVICE_H_ */
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