1/* $NetBSD: promdev.c,v 1.7 2017/02/01 18:24:22 christos 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 43int promdev_inuse; 44 45#ifdef DEBUG_PROM 46# define DPRINTF(fmt, ...) \ 47 do { \ 48 if (debug) \ 49 printf("%s: " fmt "\n", __func__, __VA_ARGS__); \ 50 } while (/*CONSTCOND*/0) 51#else 52# define DPRINTF(fmt, ...) 53#endif 54 55/* 56 * Note: caller sets the fields: 57 * si->si_boottab 58 * si->si_ctlr 59 * si->si_unit 60 * si->si_boff 61 */ 62 63int 64prom_iopen(struct saioreq *si) 65{ 66 struct boottab *ops; 67 struct devinfo *dip; 68 int ctlr, error; 69 70 if (promdev_inuse) 71 return EMFILE; 72 73 ops = si->si_boottab; 74 dip = ops->b_devinfo; 75 ctlr = si->si_ctlr; 76 77 78 DPRINTF("Boot device type: %s", ops->b_desc); 79 80 if (!_is2) { 81#ifdef DEBUG_PROM 82 if (debug) { 83 printf("d_devbytes=%d\n", dip->d_devbytes); 84 printf("d_dmabytes=%d\n", dip->d_dmabytes); 85 printf("d_localbytes=%d\n", dip->d_localbytes); 86 printf("d_devtype=%d\n", dip->d_devtype); 87 printf("d_maxiobytes=%d\n", dip->d_maxiobytes); 88 printf("d_stdcount=%d\n", dip->d_stdcount); 89 for (int i = 0; i < dip->d_stdcount; i++) 90 printf("d_stdaddrs[%d]=%#x\n", 91 i, dip->d_stdaddrs[0]); 92 } 93#endif 94 95 if (dip->d_devbytes && dip->d_stdcount) { 96 if (ctlr >= dip->d_stdcount) { 97 putstr("Invalid controller number\n"); 98 return ENXIO; 99 } 100 si->si_devaddr = dev_mapin(dip->d_devtype, 101 dip->d_stdaddrs[ctlr], dip->d_devbytes); 102 DPRINTF("devaddr=%#x", si->si_devaddr); 103 } 104 105 if (dip->d_dmabytes) { 106 si->si_dmaaddr = dvma_alloc(dip->d_dmabytes); 107 DPRINTF("dmaaddr=%#x", si->si_dmaaddr); 108 } 109 110 if (dip->d_localbytes) { 111 si->si_devdata = alloc(dip->d_localbytes); 112 DPRINTF("devdata=%#x", si->si_devdata); 113 } 114 } 115 116 /* OK, call the PROM device open routine. */ 117 DPRINTF("calling prom open... %p", si); 118 error = (*ops->b_open)(si); 119 DPRINTF("prom open returned %d", error); 120 if (error != 0) { 121#if 0 /* XXX: printf is too big for bootxx */ 122 printf("%s: \"%s\" error=%d\n", __func__, 123 ops->b_desc, error); 124#else 125 putstr("prom_iopen: prom open failed"); 126#endif 127 return ENXIO; 128 } 129 130 promdev_inuse++; 131 return 0; 132} 133 134void 135prom_iclose(struct saioreq *si) 136{ 137 struct boottab *ops; 138 139 if (promdev_inuse == 0) 140 return; 141 142 ops = si->si_boottab; 143 144 DPRINTF("calling prom close... %p", si); 145 (*ops->b_close)(si); 146 147 promdev_inuse = 0; 148} 149