arcbios.c revision 1.5.2.2
1 1.5.2.2 nathanw /* $NetBSD: arcbios.c,v 1.5.2.2 2002/09/17 21:19:27 nathanw Exp $ */ 2 1.5.2.2 nathanw 3 1.5.2.2 nathanw /*- 4 1.5.2.2 nathanw * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 1.5.2.2 nathanw * All rights reserved. 6 1.5.2.2 nathanw * 7 1.5.2.2 nathanw * This code is derived from software contributed to The NetBSD Foundation 8 1.5.2.2 nathanw * by Jason R. Thorpe. 9 1.5.2.2 nathanw * 10 1.5.2.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.5.2.2 nathanw * modification, are permitted provided that the following conditions 12 1.5.2.2 nathanw * are met: 13 1.5.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.5.2.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.5.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.5.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.5.2.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.5.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.5.2.2 nathanw * must display the following acknowledgement: 20 1.5.2.2 nathanw * This product includes software developed by the NetBSD 21 1.5.2.2 nathanw * Foundation, Inc. and its contributors. 22 1.5.2.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.5.2.2 nathanw * contributors may be used to endorse or promote products derived 24 1.5.2.2 nathanw * from this software without specific prior written permission. 25 1.5.2.2 nathanw * 26 1.5.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.5.2.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.5.2.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.5.2.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.5.2.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.5.2.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.5.2.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.5.2.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.5.2.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.5.2.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.5.2.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 37 1.5.2.2 nathanw */ 38 1.5.2.2 nathanw 39 1.5.2.2 nathanw #include <sys/cdefs.h> 40 1.5.2.2 nathanw __KERNEL_RCSID(0, "$NetBSD: arcbios.c,v 1.5.2.2 2002/09/17 21:19:27 nathanw Exp $"); 41 1.5.2.2 nathanw 42 1.5.2.2 nathanw #include <sys/param.h> 43 1.5.2.2 nathanw 44 1.5.2.2 nathanw #include <sys/systm.h> 45 1.5.2.2 nathanw #include <dev/cons.h> 46 1.5.2.2 nathanw #include <sys/conf.h> 47 1.5.2.2 nathanw 48 1.5.2.2 nathanw #include <dev/arcbios/arcbios.h> 49 1.5.2.2 nathanw #include <dev/arcbios/arcbiosvar.h> 50 1.5.2.2 nathanw 51 1.5.2.2 nathanw const struct arcbios_spb *ARCBIOS_SPB; 52 1.5.2.2 nathanw const struct arcbios_fv *ARCBIOS; 53 1.5.2.2 nathanw 54 1.5.2.2 nathanw char arcbios_sysid_vendor[ARCBIOS_SYSID_FIELDLEN + 1]; 55 1.5.2.2 nathanw char arcbios_sysid_product[ARCBIOS_SYSID_FIELDLEN + 1]; 56 1.5.2.2 nathanw 57 1.5.2.2 nathanw char arcbios_system_identifier[64 + 1]; 58 1.5.2.2 nathanw 59 1.5.2.2 nathanw int arcbios_cngetc(dev_t); 60 1.5.2.2 nathanw void arcbios_cnputc(dev_t, int); 61 1.5.2.2 nathanw 62 1.5.2.2 nathanw void arcbios_fetch_system_identifier(struct arcbios_component *, 63 1.5.2.2 nathanw struct arcbios_treewalk_context *); 64 1.5.2.2 nathanw 65 1.5.2.2 nathanw struct consdev arcbios_cn = { 66 1.5.2.2 nathanw NULL, NULL, arcbios_cngetc, arcbios_cnputc, nullcnpollc, NULL, 67 1.5.2.2 nathanw NODEV, CN_NORMAL, 68 1.5.2.2 nathanw }; 69 1.5.2.2 nathanw 70 1.5.2.2 nathanw extern const struct cdevsw arcbios_cdevsw; 71 1.5.2.2 nathanw 72 1.5.2.2 nathanw /* 73 1.5.2.2 nathanw * arcbios_init: 74 1.5.2.2 nathanw * 75 1.5.2.2 nathanw * Initialize the ARC BIOS. 76 1.5.2.2 nathanw */ 77 1.5.2.2 nathanw int 78 1.5.2.2 nathanw arcbios_init(vaddr_t pblkva) 79 1.5.2.2 nathanw { 80 1.5.2.2 nathanw int maj; 81 1.5.2.2 nathanw struct arcbios_sysid *sid; 82 1.5.2.2 nathanw 83 1.5.2.2 nathanw ARCBIOS_SPB = (struct arcbios_spb *) pblkva; 84 1.5.2.2 nathanw 85 1.5.2.2 nathanw switch (ARCBIOS_SPB->SPBSignature) { 86 1.5.2.2 nathanw case ARCBIOS_SPB_SIGNATURE: 87 1.5.2.2 nathanw case ARCBIOS_SPB_SIGNATURE_1: 88 1.5.2.2 nathanw /* Okay. */ 89 1.5.2.2 nathanw break; 90 1.5.2.2 nathanw 91 1.5.2.2 nathanw default: 92 1.5.2.2 nathanw /* Don't know what this is. */ 93 1.5.2.2 nathanw return (1); 94 1.5.2.2 nathanw } 95 1.5.2.2 nathanw 96 1.5.2.2 nathanw /* Initialize our pointer to the firmware vector. */ 97 1.5.2.2 nathanw ARCBIOS = ARCBIOS_SPB->FirmwareVector; 98 1.5.2.2 nathanw 99 1.5.2.2 nathanw /* Find the ARC BIOS console device major (needed by cnopen) */ 100 1.5.2.2 nathanw maj = cdevsw_lookup_major(&arcbios_cdevsw); 101 1.5.2.2 nathanw 102 1.5.2.2 nathanw arcbios_cn.cn_dev = makedev(maj, 0); 103 1.5.2.2 nathanw 104 1.5.2.2 nathanw /* Initialize the bootstrap console. */ 105 1.5.2.2 nathanw cn_tab = &arcbios_cn; 106 1.5.2.2 nathanw 107 1.5.2.2 nathanw /* 108 1.5.2.2 nathanw * Fetch the system ID. 109 1.5.2.2 nathanw */ 110 1.5.2.2 nathanw sid = (*ARCBIOS->GetSystemId)(); 111 1.5.2.2 nathanw if (sid != NULL) { 112 1.5.2.2 nathanw memcpy(arcbios_sysid_vendor, sid->VendorId, 113 1.5.2.2 nathanw sizeof(sid->VendorId)); 114 1.5.2.2 nathanw arcbios_sysid_vendor[sizeof(sid->VendorId)] = '\0'; 115 1.5.2.2 nathanw 116 1.5.2.2 nathanw memcpy(arcbios_sysid_product, sid->ProductId, 117 1.5.2.2 nathanw sizeof(sid->ProductId)); 118 1.5.2.2 nathanw arcbios_sysid_product[sizeof(sid->ProductId)] = '\0'; 119 1.5.2.2 nathanw } 120 1.5.2.2 nathanw 121 1.5.2.2 nathanw /* 122 1.5.2.2 nathanw * Fetch the identifier string from the `system' component. 123 1.5.2.2 nathanw * Machdep code will use this to initialize the system type. 124 1.5.2.2 nathanw */ 125 1.5.2.2 nathanw arcbios_tree_walk(arcbios_fetch_system_identifier, NULL); 126 1.5.2.2 nathanw 127 1.5.2.2 nathanw return (0); 128 1.5.2.2 nathanw } 129 1.5.2.2 nathanw 130 1.5.2.2 nathanw void 131 1.5.2.2 nathanw arcbios_fetch_system_identifier(struct arcbios_component *node, 132 1.5.2.2 nathanw struct arcbios_treewalk_context *atc) 133 1.5.2.2 nathanw { 134 1.5.2.2 nathanw 135 1.5.2.2 nathanw switch (node->Class) { 136 1.5.2.2 nathanw case COMPONENT_CLASS_SystemClass: 137 1.5.2.2 nathanw arcbios_component_id_copy(node, 138 1.5.2.2 nathanw arcbios_system_identifier, 139 1.5.2.2 nathanw sizeof(arcbios_system_identifier)); 140 1.5.2.2 nathanw atc->atc_terminate = 1; 141 1.5.2.2 nathanw break; 142 1.5.2.2 nathanw 143 1.5.2.2 nathanw default: 144 1.5.2.2 nathanw break; 145 1.5.2.2 nathanw } 146 1.5.2.2 nathanw } 147 1.5.2.2 nathanw 148 1.5.2.2 nathanw /**************************************************************************** 149 1.5.2.2 nathanw * ARC component tree walking routines. 150 1.5.2.2 nathanw ****************************************************************************/ 151 1.5.2.2 nathanw 152 1.5.2.2 nathanw static void 153 1.5.2.2 nathanw arcbios_subtree_walk(struct arcbios_component *node, 154 1.5.2.2 nathanw void (*func)(struct arcbios_component *, struct arcbios_treewalk_context *), 155 1.5.2.2 nathanw struct arcbios_treewalk_context *atc) 156 1.5.2.2 nathanw { 157 1.5.2.2 nathanw 158 1.5.2.2 nathanw for (node = (*ARCBIOS->GetChild)(node); 159 1.5.2.2 nathanw node != NULL && atc->atc_terminate == 0; 160 1.5.2.2 nathanw node = (*ARCBIOS->GetPeer)(node)) { 161 1.5.2.2 nathanw (*func)(node, atc); 162 1.5.2.2 nathanw if (atc->atc_terminate) 163 1.5.2.2 nathanw return; 164 1.5.2.2 nathanw arcbios_subtree_walk(node, func, atc); 165 1.5.2.2 nathanw } 166 1.5.2.2 nathanw } 167 1.5.2.2 nathanw 168 1.5.2.2 nathanw void 169 1.5.2.2 nathanw arcbios_tree_walk(void (*func)(struct arcbios_component *, 170 1.5.2.2 nathanw struct arcbios_treewalk_context *), void *cookie) 171 1.5.2.2 nathanw { 172 1.5.2.2 nathanw struct arcbios_treewalk_context atc; 173 1.5.2.2 nathanw 174 1.5.2.2 nathanw atc.atc_cookie = cookie; 175 1.5.2.2 nathanw atc.atc_terminate = 0; 176 1.5.2.2 nathanw 177 1.5.2.2 nathanw arcbios_subtree_walk(NULL, func, &atc); 178 1.5.2.2 nathanw } 179 1.5.2.2 nathanw 180 1.5.2.2 nathanw void 181 1.5.2.2 nathanw arcbios_component_id_copy(struct arcbios_component *node, 182 1.5.2.2 nathanw char *dst, size_t dstsize) 183 1.5.2.2 nathanw { 184 1.5.2.2 nathanw 185 1.5.2.2 nathanw dstsize--; 186 1.5.2.2 nathanw if (dstsize > node->IdentifierLength) 187 1.5.2.2 nathanw dstsize = node->IdentifierLength; 188 1.5.2.2 nathanw memcpy(dst, node->Identifier, dstsize); 189 1.5.2.2 nathanw dst[dstsize] = '\0'; 190 1.5.2.2 nathanw } 191 1.5.2.2 nathanw 192 1.5.2.2 nathanw /**************************************************************************** 193 1.5.2.2 nathanw * Bootstrap console routines. 194 1.5.2.2 nathanw ****************************************************************************/ 195 1.5.2.2 nathanw 196 1.5.2.2 nathanw int 197 1.5.2.2 nathanw arcbios_cngetc(dev_t dev) 198 1.5.2.2 nathanw { 199 1.5.2.2 nathanw uint32_t count; 200 1.5.2.2 nathanw char c; 201 1.5.2.2 nathanw 202 1.5.2.2 nathanw (*ARCBIOS->Read)(ARCBIOS_STDIN, &c, 1, &count); 203 1.5.2.2 nathanw return (c); 204 1.5.2.2 nathanw } 205 1.5.2.2 nathanw 206 1.5.2.2 nathanw void 207 1.5.2.2 nathanw arcbios_cnputc(dev_t dev, int c) 208 1.5.2.2 nathanw { 209 1.5.2.2 nathanw uint32_t count; 210 1.5.2.2 nathanw char ch = c; 211 1.5.2.2 nathanw 212 1.5.2.2 nathanw (*ARCBIOS->Write)(ARCBIOS_STDOUT, &ch, 1, &count); 213 1.5.2.2 nathanw } 214
Indexes created Wed Oct 22 13:09:56 GMT 2025