1 /* $NetBSD: mm_md.c,v 1.3 2013/09/06 17:43:19 tsutsui Exp $ */
2
3 /*
4 * Copyright (c) 1982, 1986, 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * the Systems Programming Group of the University of Utah Computer
9 * Science Department.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * from: @(#)mem.c 8.3 (Berkeley) 1/12/94
36 */
37
38 /*
39 * Copyright (c) 1988 University of Utah.
40 *
41 * This code is derived from software contributed to Berkeley by
42 * the Systems Programming Group of the University of Utah Computer
43 * Science Department.
44 *
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions
47 * are met:
48 * 1. Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * 2. Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 * 3. All advertising materials mentioning features or use of this software
54 * must display the following acknowledgement:
55 * This product includes software developed by the University of
56 * California, Berkeley and its contributors.
57 * 4. Neither the name of the University nor the names of its contributors
58 * may be used to endorse or promote products derived from this software
59 * without specific prior written permission.
60 *
61 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71 * SUCH DAMAGE.
72 *
73 * from: @(#)mem.c 8.3 (Berkeley) 1/12/94
74 */
75
76 #include <sys/cdefs.h>
77 __KERNEL_RCSID(0, "$NetBSD: mm_md.c,v 1.3 2013/09/06 17:43:19 tsutsui Exp $");
78
79 #include <sys/param.h>
80 #include <sys/errno.h>
81 #include <uvm/uvm_extern.h>
82 #include <machine/eeprom.h>
83 #include <machine/leds.h>
84 #include <machine/pmap.h>
85 #include <dev/mm.h>
86
87 #define DEV_VME16D16 5 /* minor device 5 is /dev/vme16d16 */
88 #define DEV_VME24D16 6 /* minor device 6 is /dev/vme24d16 */
89 #define DEV_VME32D16 7 /* minor device 7 is /dev/vme32d16 */
90 #define DEV_VME16D32 8 /* minor device 8 is /dev/vme16d32 */
91 #define DEV_VME24D32 9 /* minor device 9 is /dev/vme24d32 */
92 #define DEV_VME32D32 10 /* minor device 10 is /dev/vme32d32 */
93 #define DEV_EEPROM 11 /* minor device 11 is eeprom */
94 #define DEV_LEDS 13 /* minor device 13 is leds */
95
96 int
mm_md_readwrite(dev_t dev,struct uio * uio)97 mm_md_readwrite(dev_t dev, struct uio *uio)
98 {
99
100 switch (minor(dev)) {
101 case DEV_EEPROM:
102 return eeprom_uio(uio);
103 case DEV_LEDS:
104 return leds_uio(uio);
105 default:
106 return ENXIO;
107 }
108 }
109
110 paddr_t
mm_md_mmap(dev_t dev,off_t off,int prot)111 mm_md_mmap(dev_t dev, off_t off, int prot)
112 {
113
114 switch (minor(dev)) {
115 #if 0 /* not yet */
116 case DEV_VME16D16:
117 if (off & 0xffff0000)
118 return -1;
119 off |= 0xff0000;
120 /* fall through */
121 case DEV_VME24D16:
122 if (off & 0xff000000)
123 return -1;
124 off |= 0xff000000;
125 /* fall through */
126 case DEV_VME32D16:
127 return (off | PMAP_VME16);
128
129 case DEV_VME16D32:
130 if (off & 0xffff0000)
131 return -1;
132 off |= 0xff0000;
133 /* fall through */
134 case DEV_VME24D32:
135 if (off & 0xff000000)
136 return -1;
137 off |= 0xff000000;
138 /* fall through */
139 case DEV_VME32D32:
140 return off | PMAP_VME32;
141 #endif
142 default:
143 return -1;
144 }
145 }
146