1 /* $NetBSD: promlib.h,v 1.21 2005/12/11 12:19:06 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * OPENPROM functions. These are here mainly to hide the OPENPROM interface 41 * from the rest of the kernel. 42 */ 43 44 #ifndef _SPARC_PROMLIB_H_ 45 #define _SPARC_PROMLIB_H_ 46 47 #ifdef _KERNEL_OPT 48 #include "opt_multiprocessor.h" 49 #endif 50 51 #include <machine/idprom.h> 52 #include <machine/bsd_openprom.h> 53 #include <machine/openfirm.h> 54 55 /* 56 * A set of methods to access the firmware. 57 * We use this to support various versions of Open Boot Prom 58 * or Open Firmware implementations. 59 */ 60 struct promops { 61 int po_version; /* PROM version number */ 62 #define PROM_OLDMON 0 63 #define PROM_OBP_V0 1 64 #define PROM_OBP_V2 2 65 #define PROM_OBP_V3 3 66 #define PROM_OPENFIRM 4 67 int po_revision; /* revision level */ 68 int po_stdin; /* stdio handles */ 69 int po_stdout; /* */ 70 void *po_bootcookie; 71 72 /* Access to boot arguments */ 73 const char *(*po_bootpath)(void); 74 const char *(*po_bootfile)(void); 75 const char *(*po_bootargs)(void); 76 77 /* I/O functions */ 78 int (*po_getchar)(void); 79 int (*po_peekchar)(void); 80 void (*po_putchar)(int); 81 void (*po_putstr)(const char *, int); 82 int (*po_open)(const char *); 83 void (*po_close)(int); 84 int (*po_read)(int, void *, int); 85 int (*po_write)(int, const void *, int); 86 int (*po_seek)(int, u_quad_t); 87 88 int (*po_instance_to_package)(int); 89 90 /* Misc functions (common in OBP 0,2,3) */ 91 void (*po_halt)(void) __attribute__((__noreturn__)); 92 void (*po_reboot)(const char *) __attribute__((__noreturn__)); 93 void (*po_abort)(void); 94 void (*po_interpret)(const char *); 95 void (*po_setcallback)(void (*)(void)); 96 int (*po_ticks)(void); 97 void *po_tickdata; 98 99 /* sun4/sun4c only */ 100 void (*po_setcontext)(int ctxt, caddr_t va, int pmeg); 101 102 /* MP functions (OBP v3 only) */ 103 int (*po_cpustart)(int, struct openprom_addr *, int, caddr_t); 104 int (*po_cpustop)(int); 105 int (*po_cpuidle)(int); 106 int (*po_cpuresume)(int); 107 108 /* Device node traversal (OBP v0, v2, v3; but not sun4) */ 109 int (*po_firstchild)(int); 110 int (*po_nextsibling)(int); 111 112 /* Device node properties */ 113 int (*po_getproplen)(int, const char *); 114 int (*po_getprop)(int, const char *, void *, int); 115 int (*po_setprop)(int, const char *, const void *, int); 116 char *(*po_nextprop)(int, const char *); 117 118 int (*po_finddevice)(const char *); 119 120 }; 121 122 extern struct promops promops; 123 124 /* 125 * Memory description array. 126 * Same as version 2 rom meminfo property. 127 */ 128 struct memarr { 129 long zero; 130 u_long addr; 131 u_long len; 132 }; 133 int prom_makememarr(struct memarr *, int, int); 134 #define MEMARR_AVAILPHYS 0 135 #define MEMARR_TOTALPHYS 1 136 137 struct idprom *prom_getidprom(void); 138 void prom_getether(int, u_char *); 139 const char *prom_pa_location(u_int, u_int); 140 141 void prom_init(void); /* To setup promops */ 142 143 /* Utility routines */ 144 int prom_getprop(int, const char *, size_t, int *, void *); 145 int prom_getpropint(int, const char *, int); 146 char *prom_getpropstring(int, const char *); 147 char *prom_getpropstringA(int, const char *, char *, size_t); 148 void prom_printf(const char *, ...); 149 150 int prom_findroot(void); 151 int prom_findnode(int, const char *); 152 int prom_search(int, const char *); 153 int prom_opennode(const char *); 154 int prom_node_has_property(int, const char *); 155 int prom_getoptionsnode(void); 156 int prom_getoption(const char *, char *, int); 157 158 #define findroot() prom_findroot() 159 #define findnode(node,name) prom_findnode(node,name) 160 #define opennode(name) prom_opennode(name) 161 #define node_has_property(node,prop) prom_node_has_property(node,prop) 162 163 void prom_halt(void) __attribute__((__noreturn__)); 164 void prom_boot(char *) __attribute__((__noreturn__)); 165 166 #if defined(MULTIPROCESSOR) 167 #define callrom() do { \ 168 mp_pause_cpus(); \ 169 prom_abort(); \ 170 mp_resume_cpus(); \ 171 } while (0) 172 #else 173 #define callrom() prom_abort() 174 #endif 175 176 #define prom_version() (promops.po_version) 177 #define prom_revision() (promops.po_revision) 178 #define prom_stdin() (promops.po_stdin) 179 #define prom_stdout() (promops.po_stdout) 180 #define _prom_halt() ((*promops.po_halt)(/*void*/)) 181 #define _prom_boot(a) ((*promops.po_reboot)(a)) 182 #define prom_abort() ((*promops.po_abort)(/*void*/)) 183 #define prom_interpret(a) ((*promops.po_interpret)(a)) 184 #define prom_setcallback(f) ((*promops.po_setcallback)(f)) 185 #define prom_setcontext(c,a,p) ((*promops.po_setcontext)(c,a,p)) 186 #define prom_getbootpath() ((*promops.po_bootpath)(/*void*/)) 187 #define prom_getbootfile() ((*promops.po_bootfile)(/*void*/)) 188 #define prom_getbootargs() ((*promops.po_bootargs)(/*void*/)) 189 #define prom_ticks() ((*promops.po_ticks)(/*void*/)) 190 191 192 #define prom_open(name) ((*promops.po_open)(name)) 193 #define prom_close(fd) ((*promops.po_close)(fd)) 194 #define prom_instance_to_package(fd) \ 195 ((*promops.po_instance_to_package)(fd)) 196 #define prom_read(fd,b,n) ((*promops.po_read)(fd,b,n)) 197 #define prom_write(fd,b,n) ((*promops.po_write)(fd,b,n)) 198 #define prom_seek(fd,o) ((*promops.po_seek)(fd,o)) 199 #define prom_getchar() ((*promops.po_getchar)(/*void*/)) 200 #define prom_peekchar() ((*promops.po_peekchar)(/*void*/)) 201 #define prom_putchar(c) ((*promops.po_putchar)(c)) 202 #define prom_putstr(b,n) ((*promops.po_putstr)(b,n)) 203 204 /* Node traversal */ 205 #define prom_firstchild(node) ((*promops.po_firstchild)(node)) 206 #define prom_nextsibling(node) ((*promops.po_nextsibling)(node)) 207 #define prom_proplen(node,name) ((*promops.po_getproplen)(node, name)) 208 #define _prom_getprop(node, name, buf, len) \ 209 ((*promops.po_getprop)(node, name, buf, len)) 210 #define prom_setprop(node, name, value, len) \ 211 ((*promops.po_setprop)(node, name, value, len)) 212 #define prom_nextprop(node,name) ((*promops.po_nextprop)(node, name)) 213 #define prom_finddevice(name) ((*promops.po_finddevice)(name)) 214 215 #define firstchild(node) prom_firstchild(node) 216 #define nextsibling(node) prom_nextsibling(node) 217 #define prom_getproplen(node,name) prom_proplen(node, name) 218 219 220 /* MP stuff - not currently used */ 221 #define prom_cpustart(m,a,c,pc) ((*promops.po_cpustart)(m,a,c,pc)) 222 #define prom_cpustop(m) ((*promops.po_cpustop)(m)) 223 #define prom_cpuidle(m) ((*promops.po_cpuidle)(m)) 224 #define prom_cpuresume(m) ((*promops.po_cpuresume)(m)) 225 226 extern void *romp; /* PROM-supplied argument (see locore) */ 227 228 #endif /* _SPARC_PROMLIB_H_ */ 229