mm_md.c revision 1.2
1 1.2 rmind /* $NetBSD: mm_md.c,v 1.2 2011/06/12 03:35:48 rmind Exp $ */ 2 1.2 rmind 3 1.2 rmind /* 4 1.2 rmind * Copyright (c) 1982, 1986, 1990, 1993 5 1.2 rmind * The Regents of the University of California. All rights reserved. 6 1.2 rmind * 7 1.2 rmind * This code is derived from software contributed to Berkeley by 8 1.2 rmind * the Systems Programming Group of the University of Utah Computer 9 1.2 rmind * Science Department. 10 1.2 rmind * 11 1.2 rmind * Redistribution and use in source and binary forms, with or without 12 1.2 rmind * modification, are permitted provided that the following conditions 13 1.2 rmind * are met: 14 1.2 rmind * 1. Redistributions of source code must retain the above copyright 15 1.2 rmind * notice, this list of conditions and the following disclaimer. 16 1.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 17 1.2 rmind * notice, this list of conditions and the following disclaimer in the 18 1.2 rmind * documentation and/or other materials provided with the distribution. 19 1.2 rmind * 3. Neither the name of the University nor the names of its contributors 20 1.2 rmind * may be used to endorse or promote products derived from this software 21 1.2 rmind * without specific prior written permission. 22 1.2 rmind * 23 1.2 rmind * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.2 rmind * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.2 rmind * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.2 rmind * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.2 rmind * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.2 rmind * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.2 rmind * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.2 rmind * SUCH DAMAGE. 34 1.2 rmind * 35 1.2 rmind * from: @(#)mem.c 8.3 (Berkeley) 1/12/94 36 1.2 rmind */ 37 1.2 rmind 38 1.2 rmind /* 39 1.2 rmind * Copyright (c) 1988 University of Utah. 40 1.2 rmind * 41 1.2 rmind * This code is derived from software contributed to Berkeley by 42 1.2 rmind * the Systems Programming Group of the University of Utah Computer 43 1.2 rmind * Science Department. 44 1.2 rmind * 45 1.2 rmind * Redistribution and use in source and binary forms, with or without 46 1.2 rmind * modification, are permitted provided that the following conditions 47 1.2 rmind * are met: 48 1.2 rmind * 1. Redistributions of source code must retain the above copyright 49 1.2 rmind * notice, this list of conditions and the following disclaimer. 50 1.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 51 1.2 rmind * notice, this list of conditions and the following disclaimer in the 52 1.2 rmind * documentation and/or other materials provided with the distribution. 53 1.2 rmind * 3. All advertising materials mentioning features or use of this software 54 1.2 rmind * must display the following acknowledgement: 55 1.2 rmind * This product includes software developed by the University of 56 1.2 rmind * California, Berkeley and its contributors. 57 1.2 rmind * 4. Neither the name of the University nor the names of its contributors 58 1.2 rmind * may be used to endorse or promote products derived from this software 59 1.2 rmind * without specific prior written permission. 60 1.2 rmind * 61 1.2 rmind * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 62 1.2 rmind * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 63 1.2 rmind * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 64 1.2 rmind * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 65 1.2 rmind * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 66 1.2 rmind * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 67 1.2 rmind * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 68 1.2 rmind * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 69 1.2 rmind * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 70 1.2 rmind * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 71 1.2 rmind * SUCH DAMAGE. 72 1.2 rmind * 73 1.2 rmind * from: @(#)mem.c 8.3 (Berkeley) 1/12/94 74 1.2 rmind */ 75 1.2 rmind 76 1.2 rmind #include <sys/cdefs.h> 77 1.2 rmind __KERNEL_RCSID(0, "$NetBSD: mm_md.c,v 1.2 2011/06/12 03:35:48 rmind Exp $"); 78 1.2 rmind 79 1.2 rmind #include <sys/param.h> 80 1.2 rmind #include <sys/errno.h> 81 1.2 rmind #include <uvm/uvm_extern.h> 82 1.2 rmind #include <machine/eeprom.h> 83 1.2 rmind #include <machine/leds.h> 84 1.2 rmind #include <machine/pmap.h> 85 1.2 rmind #include <dev/mm.h> 86 1.2 rmind 87 1.2 rmind #define DEV_VME16D16 5 /* minor device 5 is /dev/vme16d16 */ 88 1.2 rmind #define DEV_VME24D16 6 /* minor device 6 is /dev/vme24d16 */ 89 1.2 rmind #define DEV_VME32D16 7 /* minor device 7 is /dev/vme32d16 */ 90 1.2 rmind #define DEV_VME16D32 8 /* minor device 8 is /dev/vme16d32 */ 91 1.2 rmind #define DEV_VME24D32 9 /* minor device 9 is /dev/vme24d32 */ 92 1.2 rmind #define DEV_VME32D32 10 /* minor device 10 is /dev/vme32d32 */ 93 1.2 rmind #define DEV_EEPROM 11 /* minor device 11 is eeprom */ 94 1.2 rmind #define DEV_LEDS 13 /* minor device 13 is leds */ 95 1.2 rmind 96 1.2 rmind int 97 1.2 rmind mm_md_readwrite(dev_t dev, struct uio *uio) 98 1.2 rmind { 99 1.2 rmind 100 1.2 rmind switch (minor(dev)) { 101 1.2 rmind case DEV_EEPROM: 102 1.2 rmind return eeprom_uio(uio); 103 1.2 rmind case DEV_LEDS: 104 1.2 rmind return leds_uio(uio); 105 1.2 rmind default: 106 1.2 rmind return ENXIO; 107 1.2 rmind } 108 1.2 rmind } 109 1.2 rmind 110 1.2 rmind paddr_t 111 1.2 rmind mm_md_mmap(dev_t dev, off_t off, int prot) 112 1.2 rmind { 113 1.2 rmind 114 1.2 rmind switch (minor(dev)) { 115 1.2 rmind #if 0 /* not yet */ 116 1.2 rmind case DEV_VME16D16: 117 1.2 rmind if (off & 0xffff0000) 118 1.2 rmind return -1; 119 1.2 rmind off |= 0xff0000; 120 1.2 rmind /* fall through */ 121 1.2 rmind case DEV_VME24D16: 122 1.2 rmind if (off & 0xff000000) 123 1.2 rmind return -1; 124 1.2 rmind off |= 0xff000000; 125 1.2 rmind /* fall through */ 126 1.2 rmind case DEV_VME32D16: 127 1.2 rmind return (off | PMAP_VME16); 128 1.2 rmind 129 1.2 rmind case DEV_VME16D32: 130 1.2 rmind if (off & 0xffff0000) 131 1.2 rmind return -1; 132 1.2 rmind off |= 0xff0000; 133 1.2 rmind /* fall through */ 134 1.2 rmind case DEV_VME24D32: 135 1.2 rmind if (off & 0xff000000) 136 1.2 rmind return -1; 137 1.2 rmind off |= 0xff000000; 138 1.2 rmind /* fall through */ 139 1.2 rmind case DEV_VME32D32: 140 1.2 rmind return off | PMAP_VME32; 141 1.2 rmind #endif 142 1.2 rmind default: 143 1.2 rmind return -1; 144 1.2 rmind } 145 1.2 rmind } 146
Indexes created Mon Sep 22 21:09:42 GMT 2025