| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * Hypervisor Software File: prom_glue.c |
| 5 | * |
| 6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 7 | * |
| 8 | * - Do no alter or remove copyright notices |
| 9 | * |
| 10 | * - Redistribution and use of this software in source and binary forms, with |
| 11 | * or without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistribution of source code must retain the above copyright notice, |
| 15 | * this list of conditions and the following disclaimer. |
| 16 | * |
| 17 | * - Redistribution in binary form must reproduce the above copyright notice, |
| 18 | * this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * |
| 21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 22 | * may be used to endorse or promote products derived from this software |
| 23 | * without specific prior written permission. |
| 24 | * |
| 25 | * This software is provided "AS IS," without a warranty of any kind. |
| 26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
| 29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR |
| 30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| 31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN |
| 32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
| 33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
| 34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
| 35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF |
| 36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 37 | * |
| 38 | * You acknowledge that this software is not designed, licensed or |
| 39 | * intended for use in the design, construction, operation or maintenance of |
| 40 | * any nuclear facility. |
| 41 | * |
| 42 | * ========== Copyright Header End ============================================ |
| 43 | */ |
| 44 | /* |
| 45 | * id: @(#)prom_glue.c 1.1 03/04/01 |
| 46 | * purpose: |
| 47 | * Copyright 1994-2001, 2003 Sun Microsystems, Inc. All Rights Reserved |
| 48 | * Use is subject to license terms. |
| 49 | */ |
| 50 | |
| 51 | #include <sys/promif.h> |
| 52 | #include <sys/promimpl.h> |
| 53 | #include <sys/obpdefs.h> |
| 54 | #include <sys/varargs.h> |
| 55 | |
| 56 | caddr_t strstr(caddr_t s1, caddr_t s2); |
| 57 | |
| 58 | /* |
| 59 | * flash update functions |
| 60 | */ |
| 61 | |
| 62 | ihandle_t |
| 63 | get_parent_ihandle(ihandle_t child_ihandle) |
| 64 | { |
| 65 | char parent_name[OBP_MAXPATHLEN]; |
| 66 | phandle_t child_phandle, parent_phandle; |
| 67 | |
| 68 | child_phandle = prom_getphandle(child_ihandle); |
| 69 | parent_phandle = prom_parentnode(child_phandle); |
| 70 | prom_phandle_to_path(parent_phandle, parent_name, OBP_MAXPATHLEN); |
| 71 | |
| 72 | return (prom_open(parent_name)); |
| 73 | } |
| 74 | |
| 75 | void * |
| 76 | mmap(void *addr, size_t len, int32_t prot, uint32_t flags, |
| 77 | ihandle_t fildes, int32_t off) |
| 78 | { |
| 79 | ihandle_t dev_ihandle, parent_ihandle; |
| 80 | phandle_t dev_phandle, parent_phandle; |
| 81 | void *rp; |
| 82 | static char reg_prop[100], dev_name[100], bus_type[100]; |
| 83 | uint32_t *reg_ptr; |
| 84 | uint_t adr_cells, size_cells; |
| 85 | |
| 86 | dev_ihandle = fildes; |
| 87 | dev_phandle = prom_getphandle(dev_ihandle); |
| 88 | prom_getprop(dev_phandle, "reg", reg_prop); |
| 89 | reg_ptr = (uint32_t *)reg_prop; |
| 90 | |
| 91 | parent_ihandle = get_parent_ihandle(dev_ihandle); |
| 92 | parent_phandle = prom_getphandle(parent_ihandle); |
| 93 | |
| 94 | prom_getprop(parent_phandle, "#address-cells", (caddr_t)&adr_cells); |
| 95 | prom_getprop(parent_phandle, "#size-cells", (caddr_t)&size_cells); |
| 96 | |
| 97 | prom_getprop(dev_phandle, "name", dev_name); |
| 98 | prom_getprop(parent_phandle, "device_type", bus_type); |
| 99 | |
| 100 | /* |
| 101 | * Flashprom devices need special handling of offset arg |
| 102 | * as specified by the /dev/flashprom driver |
| 103 | */ |
| 104 | |
| 105 | if ((strcmp(dev_name, "flashprom") == 0)) { |
| 106 | if (off != NULL) { |
| 107 | reg_ptr += ((off >> 28) & 0xf) |
| 108 | * (adr_cells + size_cells); |
| 109 | off = (off & 0xfffffff); |
| 110 | *(reg_ptr + 1) += off; |
| 111 | } |
| 112 | rp = (void *)prom_mapin(parent_ihandle, reg_ptr, |
| 113 | adr_cells, len); |
| 114 | |
| 115 | return ((void *)((int32_t)rp & 0xffffffff)); |
| 116 | } |
| 117 | |
| 118 | /* |
| 119 | * PCI addresses are relocatable so use assigned-addresses |
| 120 | */ |
| 121 | |
| 122 | if ((strcmp(bus_type, "pci") == 0)) { |
| 123 | prom_getprop(dev_phandle, "assigned-addresses", reg_prop); |
| 124 | } |
| 125 | |
| 126 | reg_ptr += (off * (adr_cells + size_cells)); |
| 127 | rp = (void *)prom_mapin(parent_ihandle, reg_ptr, adr_cells, len); |
| 128 | |
| 129 | return ((void *)((int32_t)rp & 0xffffffff)); |
| 130 | } |
| 131 | |
| 132 | int32_t |
| 133 | munmap(void *addr, size_t len) |
| 134 | { |
| 135 | /* nice and platform neutral */ |
| 136 | return (0); |
| 137 | } |
| 138 | |
| 139 | uint32_t |
| 140 | sleep(uint32_t sleeptime) |
| 141 | { |
| 142 | uint32_t initial, current; |
| 143 | initial = prom_gettime(); |
| 144 | current = prom_gettime(); |
| 145 | /* prom_gettime returns milliseconds */ |
| 146 | while (((current - initial) / 1000) < sleeptime) |
| 147 | current = prom_gettime(); |
| 148 | return (0); |
| 149 | } |
| 150 | |
| 151 | /* |
| 152 | * Signal handling |
| 153 | */ |
| 154 | |
| 155 | int32_t |
| 156 | sigignore(int signal) |
| 157 | { |
| 158 | /* OBP ignore's all interrupts while running the client program */ |
| 159 | return (0); |
| 160 | } |
| 161 | |
| 162 | |
| 163 | /* |
| 164 | * Device I/O group |
| 165 | */ |
| 166 | ihandle_t |
| 167 | open(caddr_t name, int32_t oflag, ...) |
| 168 | { |
| 169 | ihandle_t fildes; |
| 170 | |
| 171 | if ((strcmp(name, "/dev/openprom")) == 0) |
| 172 | /* |
| 173 | * openprom is a special case. Return a special FD |
| 174 | * to fake out ioctl calls |
| 175 | */ |
| 176 | return (OPENPROM_FD); |
| 177 | |
| 178 | fildes = prom_open(name); |
| 179 | if (strstr(name, "flashprom")) |
| 180 | FLASHPROM_FD = fildes; |
| 181 | return (fildes); |
| 182 | } |
| 183 | |
| 184 | uint32_t |
| 185 | close(ihandle_t fd) |
| 186 | { |
| 187 | uint32_t result; |
| 188 | |
| 189 | if (fd == OPENPROM_FD) |
| 190 | /* openprom never was given a "real" FD */ |
| 191 | return (0); |
| 192 | |
| 193 | result = prom_close(fd); |
| 194 | if (fd == FLASHPROM_FD) |
| 195 | FLASHPROM_FD = NULL; |
| 196 | return (result); |
| 197 | } |
| 198 | |
| 199 | uint32_t |
| 200 | read(ihandle_t fd, caddr_t buf, uint32_t len) |
| 201 | { |
| 202 | return (prom_read(fd, buf, len)); |
| 203 | } |
| 204 | |
| 205 | uint32_t |
| 206 | write(ihandle_t fd, caddr_t buf, uint32_t len) |
| 207 | { |
| 208 | return (prom_write(fd, buf, len)); |
| 209 | } |
| 210 | |
| 211 | uint32_t |
| 212 | seek(ihandle_t fd, u_longlong_t offset) |
| 213 | { |
| 214 | return (prom_seek(fd, offset)); |
| 215 | } |
| 216 | |
| 217 | /* |
| 218 | * Control transfer group |
| 219 | */ |
| 220 | |
| 221 | |
| 222 | /* The exit argument isn't used */ |
| 223 | void |
| 224 | exit(int32_t level) |
| 225 | { |
| 226 | prom_exit_to_mon(); |
| 227 | } |
| 228 | |
| 229 | /* |
| 230 | * Resource allocation group |
| 231 | */ |
| 232 | |
| 233 | void * |
| 234 | malloc(size_t size) |
| 235 | { |
| 236 | caddr_t virt; |
| 237 | /* virt is never used because align(arg 2) = 1 */ |
| 238 | return ((void *)prom_malloc(virt, size, 1)); |
| 239 | } |
| 240 | |
| 241 | |
| 242 | /* This function is pretty much a noop in OBP (right now) */ |
| 243 | void |
| 244 | free(caddr_t virt, size_t size) |
| 245 | { |
| 246 | size = 0; |
| 247 | prom_free(virt, size); |
| 248 | } |
| 249 | |
| 250 | /* |
| 251 | * Console I/O group |
| 252 | */ |
| 253 | |
| 254 | uchar_t |
| 255 | getchar(void) |
| 256 | { |
| 257 | char c; |
| 258 | c = prom_getchar(); |
| 259 | /* echo to stdout like unix */ |
| 260 | switch (c) { |
| 261 | case 13: |
| 262 | prom_printf("\n"); |
| 263 | c = 10; |
| 264 | break; |
| 265 | case 127: |
| 266 | prom_printf("\b"); |
| 267 | break; |
| 268 | default: |
| 269 | prom_printf("%c", c); |
| 270 | break; |
| 271 | } |
| 272 | return (c); |
| 273 | } |
| 274 | |
| 275 | void |
| 276 | putchar(char c) |
| 277 | { |
| 278 | prom_putchar(c); |
| 279 | } |
| 280 | |
| 281 | int32_t |
| 282 | mayget(void) |
| 283 | { |
| 284 | return (prom_mayget()); |
| 285 | } |
| 286 | |
| 287 | int32_t |
| 288 | mayput(char c) |
| 289 | { |
| 290 | return (prom_mayput(c)); |
| 291 | } |
| 292 | |
| 293 | /* the actual printf command returns an int */ |
| 294 | void |
| 295 | printf(const caddr_t fmt, ...) |
| 296 | { |
| 297 | __va_list adx; |
| 298 | va_start(adx, fmt); |
| 299 | prom_vprintf(fmt, adx); |
| 300 | va_end(adx); |
| 301 | } |
| 302 | |
| 303 | void |
| 304 | vprintf(const caddr_t fmt, __va_list adx) |
| 305 | { |
| 306 | prom_vprintf(fmt, adx); |
| 307 | } |
| 308 | |
| 309 | caddr_t |
| 310 | sprintf(caddr_t s, const caddr_t fmt, ...) |
| 311 | { |
| 312 | __va_list adx; |
| 313 | va_start(adx, fmt); |
| 314 | prom_vsprintf(s, fmt, adx); |
| 315 | va_end(adx); |
| 316 | return (s); |
| 317 | } |
| 318 | |
| 319 | caddr_t |
| 320 | vsprintf(caddr_t s, const caddr_t fmt, __va_list adx) |
| 321 | { |
| 322 | prom_vsprintf(s, fmt, adx); |
| 323 | } |
| 324 | |
| 325 | /* |
| 326 | * Utility routines (proimpl.h) |
| 327 | */ |
| 328 | |
| 329 | caddr_t |
| 330 | strcpy(caddr_t s1, caddr_t s2) |
| 331 | { |
| 332 | return (prom_strcpy(s1, s2)); |
| 333 | } |
| 334 | |
| 335 | caddr_t |
| 336 | strdup(caddr_t s1) |
| 337 | { |
| 338 | caddr_t s2; |
| 339 | s2 = (caddr_t)malloc(strlen(s1) + 1); |
| 340 | strcpy(s2, s1); |
| 341 | return (s2); |
| 342 | } |
| 343 | |
| 344 | caddr_t |
| 345 | strncpy(caddr_t s1, caddr_t s2, size_t n) |
| 346 | { |
| 347 | return (prom_strncpy(s1, s2, n)); |
| 348 | } |
| 349 | |
| 350 | int32_t |
| 351 | strcmp(caddr_t s1, caddr_t s2) |
| 352 | { |
| 353 | return (prom_strcmp(s1, s2)); |
| 354 | } |
| 355 | |
| 356 | int32_t |
| 357 | strncmp(caddr_t s1, caddr_t s2, size_t n) |
| 358 | { |
| 359 | return (prom_strncmp(s1, s2, n)); |
| 360 | } |
| 361 | |
| 362 | int32_t |
| 363 | strlen(caddr_t s) |
| 364 | { |
| 365 | return (prom_strlen(s)); |
| 366 | } |
| 367 | |
| 368 | caddr_t |
| 369 | strrchr(caddr_t s, int32_t c) |
| 370 | { |
| 371 | return (prom_strrchr(s, c)); |
| 372 | } |
| 373 | |
| 374 | caddr_t |
| 375 | strcat(caddr_t s1, caddr_t s2) |
| 376 | { |
| 377 | return (prom_strcat(s1, s2)); |
| 378 | } |
| 379 | |
| 380 | caddr_t |
| 381 | strchr(const caddr_t s, int32_t c) |
| 382 | { |
| 383 | return (prom_strchr(s, c)); |
| 384 | } |
| 385 | |
| 386 | caddr_t |
| 387 | strstr(caddr_t s1, caddr_t s2) |
| 388 | { |
| 389 | return (prom_strstr(s1, s2)); |
| 390 | } |
| 391 | |
| 392 | void * |
| 393 | memccpy(caddr_t s1, caddr_t s2, int32_t c, size_t n) |
| 394 | { |
| 395 | return (prom_memccpy(s1, s2, c, n)); |
| 396 | } |
| 397 | |
| 398 | void * |
| 399 | memchr(caddr_t s, int32_t c, size_t n) |
| 400 | { |
| 401 | return (prom_memchr(s, c, n)); |
| 402 | } |
| 403 | |
| 404 | |
| 405 | int32_t |
| 406 | memcmp(caddr_t s1, caddr_t s2, size_t n) |
| 407 | { |
| 408 | return (prom_memcmp(s1, s2, n)); |
| 409 | } |
| 410 | |
| 411 | void * |
| 412 | memcpy(caddr_t s1, caddr_t s2, size_t n) |
| 413 | { |
| 414 | return (prom_memcpy(s1, s2, n)); |
| 415 | } |
| 416 | |
| 417 | void * |
| 418 | memset(caddr_t s, int32_t c, size_t n) |
| 419 | { |
| 420 | return (prom_memset(s, c, n)); |
| 421 | } |