1 /* $NetBSD: promdev.c,v 1.5 2009/01/12 07:00:59 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Gordon W. Ross 5 * Copyright (c) 1993 Paul Kranenburg 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Paul Kranenburg. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/types.h> 35 #include <machine/mon.h> 36 37 #include <stand.h> 38 39 #include "libsa.h" 40 #include "dvma.h" 41 #include "saio.h" 42 43 int promdev_inuse; 44 45 /* 46 * Note: caller sets the fields: 47 * si->si_boottab 48 * si->si_ctlr 49 * si->si_unit 50 * si->si_boff 51 */ 52 53 int 54 prom_iopen(struct saioreq *si) 55 { 56 struct boottab *ops; 57 struct devinfo *dip; 58 int ctlr, error; 59 60 if (promdev_inuse) 61 return(EMFILE); 62 63 ops = si->si_boottab; 64 dip = ops->b_devinfo; 65 ctlr = si->si_ctlr; 66 67 #ifdef DEBUG_PROM 68 if (debug) { 69 printf("Boot device type: %s\n", ops->b_desc); 70 } 71 #endif 72 73 if (!_is2) { 74 #ifdef DEBUG_PROM 75 if (debug) { 76 printf("d_devbytes=%d\n", dip->d_devbytes); 77 printf("d_dmabytes=%d\n", dip->d_dmabytes); 78 printf("d_localbytes=%d\n", dip->d_localbytes); 79 printf("d_devtype=%d\n", dip->d_devtype); 80 printf("d_maxiobytes=%d\n", dip->d_maxiobytes); 81 printf("d_stdcount=%d\n", dip->d_stdcount); 82 for (i = 0; i < dip->d_stdcount; i++) 83 printf("d_stdaddrs[i]=0x%x\n", 84 i, dip->d_stdaddrs[0]); 85 } 86 #endif 87 88 if (dip->d_devbytes && dip->d_stdcount) { 89 if (ctlr >= dip->d_stdcount) { 90 putstr("Invalid controller number\n"); 91 return(ENXIO); 92 } 93 si->si_devaddr = dev_mapin(dip->d_devtype, 94 dip->d_stdaddrs[ctlr], dip->d_devbytes); 95 #ifdef DEBUG_PROM 96 if (debug) 97 printf("prom_iopen: devaddr=0x%x\n", si->si_devaddr); 98 #endif 99 } 100 101 if (dip->d_dmabytes) { 102 si->si_dmaaddr = dvma_alloc(dip->d_dmabytes); 103 #ifdef DEBUG_PROM 104 if (debug) 105 printf("prom_iopen: dmaaddr=0x%x\n", si->si_dmaaddr); 106 #endif 107 } 108 109 if (dip->d_localbytes) { 110 si->si_devdata = alloc(dip->d_localbytes); 111 #ifdef DEBUG_PROM 112 if (debug) 113 printf("prom_iopen: devdata=0x%x\n", si->si_devdata); 114 #endif 115 } 116 } 117 118 /* OK, call the PROM device open routine. */ 119 #ifdef DEBUG_PROM 120 if (debug) 121 printf("prom_iopen: calling prom open...\n"); 122 #endif 123 error = (*ops->b_open)(si); 124 #ifdef DEBUG_PROM 125 if (debug) 126 printf("prom_iopen: prom open returned %d\n", error); 127 #endif 128 if (error != 0) { 129 #if 0 /* XXX: printf is too big for bootxx */ 130 printf("prom_iopen: \"%s\" error=%d\n", 131 ops->b_desc, error); 132 #else 133 putstr("prom_iopen: prom open failed"); 134 #endif 135 return (ENXIO); 136 } 137 138 promdev_inuse++; 139 return (0); 140 } 141 142 void 143 prom_iclose(struct saioreq *si) 144 { 145 struct boottab *ops; 146 struct devinfo *dip; 147 148 if (promdev_inuse == 0) 149 return; 150 151 ops = si->si_boottab; 152 dip = ops->b_devinfo; 153 154 #ifdef DEBUG_PROM 155 if (debug) 156 printf("prom_iclose: calling prom close...\n"); 157 #endif 158 (*ops->b_close)(si); 159 160 promdev_inuse = 0; 161 } 162