promlib.c revision 1.1.18.2
1 1.1.18.2 yamt /* $NetBSD: promlib.c,v 1.1.18.2 2006/06/21 14:56:40 yamt Exp $ */ 2 1.1.18.2 yamt 3 1.1.18.2 yamt /*- 4 1.1.18.2 yamt * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 1.1.18.2 yamt * All rights reserved. 6 1.1.18.2 yamt * 7 1.1.18.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.18.2 yamt * by Paul Kranenburg. 9 1.1.18.2 yamt * 10 1.1.18.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.18.2 yamt * modification, are permitted provided that the following conditions 12 1.1.18.2 yamt * are met: 13 1.1.18.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.18.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.18.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.18.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.1.18.2 yamt * must display the following acknowledgement: 20 1.1.18.2 yamt * This product includes software developed by the NetBSD 21 1.1.18.2 yamt * Foundation, Inc. and its contributors. 22 1.1.18.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.18.2 yamt * contributors may be used to endorse or promote products derived 24 1.1.18.2 yamt * from this software without specific prior written permission. 25 1.1.18.2 yamt * 26 1.1.18.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.18.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.18.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.18.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.18.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.18.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.18.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.18.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.18.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.18.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.18.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.1.18.2 yamt */ 38 1.1.18.2 yamt 39 1.1.18.2 yamt /* 40 1.1.18.2 yamt * OPENPROM functions. These are here mainly to hide the OPENPROM interface 41 1.1.18.2 yamt * from the rest of the kernel. 42 1.1.18.2 yamt */ 43 1.1.18.2 yamt 44 1.1.18.2 yamt #include <sys/types.h> 45 1.1.18.2 yamt #include <machine/promlib.h> 46 1.1.18.2 yamt 47 1.1.18.2 yamt #include "openfirm.h" 48 1.1.18.2 yamt 49 1.1.18.2 yamt 50 1.1.18.2 yamt void *romp; 51 1.1.18.2 yamt struct promops promops; 52 1.1.18.2 yamt 53 1.1.18.2 yamt 54 1.1.18.2 yamt static void 55 1.1.18.2 yamt openfirmware_fatal(void) 56 1.1.18.2 yamt { 57 1.1.18.2 yamt printf("Invalid Openfirmware environment\n"); 58 1.1.18.2 yamt exit(0); 59 1.1.18.2 yamt } 60 1.1.18.2 yamt 61 1.1.18.2 yamt static int 62 1.1.18.2 yamt openfirmware_chosen(void) 63 1.1.18.2 yamt { 64 1.1.18.2 yamt static int phandle = -1; 65 1.1.18.2 yamt 66 1.1.18.2 yamt if (phandle == -1) { 67 1.1.18.2 yamt if ( (phandle = OF_finddevice("/chosen")) == -1) { 68 1.1.18.2 yamt exit(0); 69 1.1.18.2 yamt } 70 1.1.18.2 yamt } 71 1.1.18.2 yamt 72 1.1.18.2 yamt return (phandle); 73 1.1.18.2 yamt } 74 1.1.18.2 yamt 75 1.1.18.2 yamt static const char* 76 1.1.18.2 yamt openfirmware_bootpath(void) 77 1.1.18.2 yamt { 78 1.1.18.2 yamt static char bootpath[PROM_MAX_PATH]; 79 1.1.18.2 yamt 80 1.1.18.2 yamt if (_prom_getprop(openfirmware_chosen(), "bootpath", bootpath, 81 1.1.18.2 yamt sizeof(bootpath)) < 0) { 82 1.1.18.2 yamt openfirmware_fatal(); 83 1.1.18.2 yamt } 84 1.1.18.2 yamt 85 1.1.18.2 yamt return bootpath; 86 1.1.18.2 yamt } 87 1.1.18.2 yamt 88 1.1.18.2 yamt static const char* 89 1.1.18.2 yamt openfirmware_bootfile(void) 90 1.1.18.2 yamt { 91 1.1.18.2 yamt /* Default image name */ 92 1.1.18.2 yamt return "netbsd"; 93 1.1.18.2 yamt } 94 1.1.18.2 yamt 95 1.1.18.2 yamt static const char* 96 1.1.18.2 yamt openfirmware_bootargs(void) 97 1.1.18.2 yamt { 98 1.1.18.2 yamt static char bootargs[PROM_MAX_PATH * 2]; 99 1.1.18.2 yamt 100 1.1.18.2 yamt if (_prom_getprop(openfirmware_chosen(), "bootargs", bootargs, 101 1.1.18.2 yamt sizeof(bootargs)) < 0) { 102 1.1.18.2 yamt openfirmware_fatal(); 103 1.1.18.2 yamt } 104 1.1.18.2 yamt 105 1.1.18.2 yamt return bootargs; 106 1.1.18.2 yamt } 107 1.1.18.2 yamt 108 1.1.18.2 yamt static int 109 1.1.18.2 yamt openfirmware_getchar(void) 110 1.1.18.2 yamt { 111 1.1.18.2 yamt unsigned char ch = '\0'; 112 1.1.18.2 yamt int l; 113 1.1.18.2 yamt 114 1.1.18.2 yamt while ((l = OF_read(prom_stdin(), &ch, 1)) != 1) 115 1.1.18.2 yamt if (l != -2 && l != 0) 116 1.1.18.2 yamt return -1; 117 1.1.18.2 yamt return ch; 118 1.1.18.2 yamt } 119 1.1.18.2 yamt 120 1.1.18.2 yamt static void 121 1.1.18.2 yamt openfirmware_putchar(int c) 122 1.1.18.2 yamt { 123 1.1.18.2 yamt char ch = c; 124 1.1.18.2 yamt 125 1.1.18.2 yamt if (c == '\n') 126 1.1.18.2 yamt putchar('\r'); 127 1.1.18.2 yamt OF_write(prom_stdout(), &ch, 1); 128 1.1.18.2 yamt } 129 1.1.18.2 yamt 130 1.1.18.2 yamt void 131 1.1.18.2 yamt prom_halt(void) 132 1.1.18.2 yamt { 133 1.1.18.2 yamt _prom_halt(); 134 1.1.18.2 yamt } 135 1.1.18.2 yamt 136 1.1.18.2 yamt int 137 1.1.18.2 yamt prom_findroot(void) 138 1.1.18.2 yamt { 139 1.1.18.2 yamt return OF_peer(0); 140 1.1.18.2 yamt } 141 1.1.18.2 yamt 142 1.1.18.2 yamt void 143 1.1.18.2 yamt prom_init(void) 144 1.1.18.2 yamt { 145 1.1.18.2 yamt int phandle, size; 146 1.1.18.2 yamt 147 1.1.18.2 yamt OF_initialize(); 148 1.1.18.2 yamt 149 1.1.18.2 yamt memset(promops, 0, sizeof(promops)); 150 1.1.18.2 yamt 151 1.1.18.2 yamt /* Access to boot arguments */ 152 1.1.18.2 yamt promops.po_bootpath = openfirmware_bootpath; 153 1.1.18.2 yamt promops.po_bootfile = openfirmware_bootfile; 154 1.1.18.2 yamt promops.po_bootargs = openfirmware_bootargs; 155 1.1.18.2 yamt 156 1.1.18.2 yamt /* I/O functions */ 157 1.1.18.2 yamt promops.po_getchar = openfirmware_getchar; 158 1.1.18.2 yamt promops.po_putchar = openfirmware_putchar; 159 1.1.18.2 yamt promops.po_open = OF_open; 160 1.1.18.2 yamt promops.po_close = OF_close; 161 1.1.18.2 yamt promops.po_read = OF_read; 162 1.1.18.2 yamt promops.po_write = OF_write; 163 1.1.18.2 yamt promops.po_seek = OF_seek; 164 1.1.18.2 yamt 165 1.1.18.2 yamt promops.po_instance_to_package = OF_instance_to_package; 166 1.1.18.2 yamt 167 1.1.18.2 yamt /* Program termination control */ 168 1.1.18.2 yamt promops.po_halt = OF_exit; 169 1.1.18.2 yamt promops.po_abort = OF_enter; 170 1.1.18.2 yamt promops.po_ticks = OF_milliseconds; 171 1.1.18.2 yamt 172 1.1.18.2 yamt /* Device node traversal */ 173 1.1.18.2 yamt promops.po_firstchild = OF_child; 174 1.1.18.2 yamt promops.po_nextsibling = OF_peer; 175 1.1.18.2 yamt 176 1.1.18.2 yamt /* Device node properties */ 177 1.1.18.2 yamt promops.po_getprop = OF_getprop; 178 1.1.18.2 yamt 179 1.1.18.2 yamt /* Device discovery */ 180 1.1.18.2 yamt promops.po_finddevice = OF_finddevice; 181 1.1.18.2 yamt 182 1.1.18.2 yamt /* Console I/O */ 183 1.1.18.2 yamt phandle = openfirmware_chosen(); 184 1.1.18.2 yamt size = _prom_getprop(phandle, "stdin", &promops.po_stdin, 185 1.1.18.2 yamt sizeof(promops.po_stdin)); 186 1.1.18.2 yamt size += _prom_getprop(phandle, "stdout", &promops.po_stdout, 187 1.1.18.2 yamt sizeof(promops.po_stdout)); 188 1.1.18.2 yamt if (size != (sizeof(promops.po_stdin) + sizeof(promops.po_stdout))) { 189 1.1.18.2 yamt prom_halt(); 190 1.1.18.2 yamt } 191 1.1.18.2 yamt } 192
Indexes created Fri Oct 03 23:09:56 GMT 2025