1 /* $NetBSD: sh3_bus_space.c,v 1.1 2011/07/25 21:12:23 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1996, 1997, 1998, 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: sh3_bus_space.c,v 1.1 2011/07/25 21:12:23 dyoung Exp $"); 35 36 #include <sys/types.h> 37 #include <sys/bus.h> 38 39 /* 40 * u_intN_t bus_space_read_N(bus_space_tag_t tag, 41 * bus_space_handle_t bsh, bus_size_t offset); 42 * 43 * Read a 1, 2, 4, or 8 byte quantity from bus space 44 * described by tag/handle/offset. 45 */ 46 47 uint8_t 48 bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t bsh, 49 bus_size_t offset) 50 { 51 52 return *(volatile uint8_t *)(bsh + offset); 53 } 54 55 uint16_t 56 bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t bsh, 57 bus_size_t offset) 58 { 59 60 return bswap16(*(volatile uint16_t *)(bsh + offset)); 61 } 62 63 uint32_t 64 bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t bsh, 65 bus_size_t offset) 66 { 67 68 return bswap32(*(volatile uint32_t *)(bsh + offset)); 69 } 70 71 uint16_t 72 bus_space_read_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 73 bus_size_t offset) 74 { 75 76 return *(volatile uint16_t *)(bsh + offset); 77 } 78 79 uint32_t 80 bus_space_read_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 81 bus_size_t offset) 82 { 83 84 return *(volatile uint32_t *)(bsh + offset); 85 } 86 87 /* 88 * void bus_space_read_multi_N(bus_space_tag_t tag, 89 * bus_space_handle_t bsh, bus_size_t offset, 90 * u_intN_t *addr, bus_size_t count); 91 * 92 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 93 * described by tag/handle/offset and copy into buffer provided. 94 */ 95 void 96 bus_space_read_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, 97 bus_size_t offset, uint8_t *addr, bus_size_t count) 98 { 99 100 while (count--) 101 *addr++ = bus_space_read_1(tag, bsh, offset); 102 } 103 104 void 105 bus_space_read_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh, 106 bus_size_t offset, uint16_t *addr, bus_size_t count) 107 { 108 109 while (count--) 110 *addr++ = bus_space_read_2(tag, bsh, offset); 111 } 112 113 void 114 bus_space_read_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh, 115 bus_size_t offset, uint32_t *addr, bus_size_t count) 116 { 117 118 while (count--) 119 *addr++ = bus_space_read_4(tag, bsh, offset); 120 } 121 122 void 123 bus_space_read_multi_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 124 bus_size_t offset, uint16_t *addr, bus_size_t count) 125 { 126 127 while (count--) 128 *addr++ = *(volatile uint16_t *)(bsh + offset); 129 } 130 131 void 132 bus_space_read_multi_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 133 bus_size_t offset, uint32_t *addr, bus_size_t count) 134 { 135 136 while (count--) 137 *addr++ = *(volatile uint32_t *)(bsh + offset); 138 } 139 140 /* 141 * void bus_space_read_region_N(bus_space_tag_t tag, 142 * bus_space_handle_t bsh, bus_size_t offset, 143 * u_intN_t *addr, bus_size_t count); 144 * 145 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 146 * described by tag/handle and starting at `offset' and copy into 147 * buffer provided. 148 */ 149 void 150 bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh, 151 bus_size_t offset, uint8_t *addr, bus_size_t count) 152 { 153 uint8_t *p = (uint8_t *)(bsh + offset); 154 155 while (count--) 156 *addr++ = *p++; 157 } 158 159 void 160 bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh, 161 bus_size_t offset, uint16_t *addr, bus_size_t count) 162 { 163 uint16_t *p = (uint16_t *)(bsh + offset); 164 165 while (count--) 166 *addr++ = bswap16(*p++); 167 } 168 169 void 170 bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh, 171 bus_size_t offset, uint32_t *addr, bus_size_t count) 172 { 173 uint32_t *p = (uint32_t *)(bsh + offset); 174 175 while (count--) 176 *addr++ = bswap32(*p++); 177 } 178 179 /* 180 * void bus_space_read_region_stream_N(bus_space_tag_t tag, 181 * bus_space_handle_t bsh, bus_size_t offset, 182 * u_intN_t *addr, bus_size_t count); 183 * 184 * Read `count' 1, 2, 4, or 8 byte quantities from bus space 185 * described by tag/handle and starting at `offset' and copy into 186 * buffer provided. 187 */ 188 void 189 bus_space_read_region_stream_1(bus_space_tag_t tag, bus_space_handle_t bsh, 190 bus_size_t offset, uint8_t *addr, bus_size_t count) 191 { 192 uint8_t *p = (uint8_t *)(bsh + offset); 193 194 while (count--) 195 *addr++ = *p++; 196 } 197 198 void 199 bus_space_read_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 200 bus_size_t offset, uint16_t *addr, bus_size_t count) 201 { 202 uint16_t *p = (uint16_t *)(bsh + offset); 203 204 while (count--) 205 *addr++ = *p++; 206 } 207 208 void 209 bus_space_read_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 210 bus_size_t offset, uint32_t *addr, bus_size_t count) 211 { 212 uint32_t *p = (uint32_t *)(bsh + offset); 213 214 while (count--) 215 *addr++ = *p++; 216 } 217 218 /* 219 * void bus_space_write_region_N(bus_space_tag_t tag, 220 * bus_space_handle_t bsh, bus_size_t offset, 221 * const u_intN_t *addr, bus_size_t count); 222 * 223 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided 224 * to bus space described by tag/handle starting at `offset'. 225 */ 226 void 227 bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh, 228 bus_size_t offset, const uint8_t *addr, bus_size_t count) 229 { 230 uint8_t *p = (uint8_t *)(bsh + offset); 231 232 while (count--) 233 *p++ = *addr++; 234 } 235 236 void 237 bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh, 238 bus_size_t offset, const uint16_t *addr, bus_size_t count) 239 { 240 uint16_t *p = (uint16_t *)(bsh + offset); 241 242 while (count--) 243 *p++ = bswap16(*addr++); 244 } 245 246 void 247 bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh, 248 bus_size_t offset, const uint32_t *addr, bus_size_t count) 249 { 250 uint32_t *p = (uint32_t *)(bsh + offset); 251 252 while (count--) 253 *p++ = bswap32(*addr++); 254 } 255 256 /* 257 * void bus_space_write_region_stream_N(bus_space_tag_t tag, 258 * bus_space_handle_t bsh, bus_size_t offset, 259 * const u_intN_t *addr, bus_size_t count); 260 * 261 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided 262 * to bus space described by tag/handle starting at `offset'. 263 */ 264 void 265 bus_space_write_region_stream_1(bus_space_tag_t tag, bus_space_handle_t bsh, 266 bus_size_t offset, const uint8_t *addr, bus_size_t count) 267 { 268 uint8_t *p = (uint8_t *)(bsh + offset); 269 270 while (count--) 271 *p++ = *addr++; 272 } 273 274 void 275 bus_space_write_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 276 bus_size_t offset, const uint16_t *addr, bus_size_t count) 277 { 278 uint16_t *p = (uint16_t *)(bsh + offset); 279 280 while (count--) 281 *p++ = *addr++; 282 } 283 284 void 285 bus_space_write_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 286 bus_size_t offset, const uint32_t *addr, bus_size_t count) 287 { 288 uint32_t *p = (uint32_t *)(bsh + offset); 289 290 while (count--) 291 *p++ = *addr++; 292 } 293 294 /* 295 * void bus_space_write_N(bus_space_tag_t tag, 296 * bus_space_handle_t bsh, bus_size_t offset, 297 * u_intN_t value); 298 * 299 * Write the 1, 2, 4, or 8 byte value `value' to bus space 300 * described by tag/handle/offset. 301 */ 302 void 303 bus_space_write_1(bus_space_tag_t tag, bus_space_handle_t bsh, 304 bus_size_t offset, uint8_t value) 305 { 306 307 *(volatile uint8_t *)(bsh + offset) = value; 308 } 309 310 void 311 bus_space_write_2(bus_space_tag_t tag, bus_space_handle_t bsh, 312 bus_size_t offset, uint16_t value) 313 { 314 315 *(volatile uint16_t *)(bsh + offset) = bswap16(value); 316 } 317 318 void 319 bus_space_write_4(bus_space_tag_t tag, bus_space_handle_t bsh, 320 bus_size_t offset, uint32_t value) 321 { 322 323 *(volatile uint32_t *)(bsh + offset) = bswap32(value); 324 } 325 326 void 327 bus_space_write_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 328 bus_size_t offset, uint16_t value) 329 { 330 331 *(volatile uint16_t *)(bsh + offset) = value; 332 } 333 334 void 335 bus_space_write_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 336 bus_size_t offset, uint32_t value) 337 { 338 339 *(volatile uint32_t *)(bsh + offset) = value; 340 } 341 342 /* 343 * void bus_space_write_multi_N(bus_space_tag_t tag, 344 * bus_space_handle_t bsh, bus_size_t offset, 345 * const u_intN_t *addr, bus_size_t count); 346 * 347 * Write `count' 1, 2, 4, or 8 byte quantities from the buffer 348 * provided to bus space described by tag/handle/offset. 349 */ 350 void 351 bus_space_write_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, 352 bus_size_t offset, const uint8_t *addr, bus_size_t count) 353 { 354 355 while (count--) 356 bus_space_write_1(tag, bsh, offset, *addr++); 357 } 358 359 void 360 bus_space_write_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh, 361 bus_size_t offset, const uint16_t *addr, bus_size_t count) 362 { 363 364 while (count--) 365 bus_space_write_2(tag, bsh, offset, *addr++); 366 } 367 368 void 369 bus_space_write_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh, 370 bus_size_t offset, const uint32_t *addr, bus_size_t count) 371 { 372 373 while (count--) 374 bus_space_write_4(tag, bsh, offset, *addr++); 375 } 376 377 void 378 bus_space_write_multi_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 379 bus_size_t offset, const uint16_t *addr, bus_size_t count) 380 { 381 382 while (count--) 383 bus_space_write_stream_2(tag, bsh, offset, *addr++); 384 } 385 386 void 387 bus_space_write_multi_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 388 bus_size_t offset, const uint32_t *addr, bus_size_t count) 389 { 390 391 while (count--) 392 bus_space_write_stream_4(tag, bsh, offset, *addr++); 393 } 394 395 /* 396 * void bus_space_set_multi_N(bus_space_tag_t tag, 397 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 398 * bus_size_t count); 399 * 400 * Write the 1, 2, 4, or 8 byte value `val' to bus space described 401 * by tag/handle/offset `count' times. 402 */ 403 void 404 bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, 405 bus_size_t offset, uint8_t val, bus_size_t count) 406 { 407 408 while (count--) 409 bus_space_write_1(tag, bsh, offset, val); 410 } 411 412 void 413 bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh, 414 bus_size_t offset, uint16_t val, bus_size_t count) 415 { 416 417 while (count--) 418 bus_space_write_2(tag, bsh, offset, val); 419 } 420 421 void 422 bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh, 423 bus_size_t offset, uint32_t val, bus_size_t count) 424 { 425 426 while (count--) 427 bus_space_write_4(tag, bsh, offset, val); 428 } 429 430 /* 431 * void bus_space_set_region_N(bus_space_tag_t tag, 432 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 433 * bus_size_t count); 434 * 435 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 436 * by tag/handle starting at `offset'. 437 */ 438 void 439 bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh, 440 bus_size_t offset, uint8_t val, bus_size_t count) 441 { 442 volatile uint8_t *addr = (void *)(bsh + offset); 443 444 while (count--) 445 *addr++ = val; 446 } 447 448 void 449 bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh, 450 bus_size_t offset, uint16_t val, bus_size_t count) 451 { 452 volatile uint16_t *addr = (void *)(bsh + offset); 453 454 val = bswap16(val); 455 while (count--) 456 *addr++ = val; 457 } 458 459 void 460 bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh, 461 bus_size_t offset, uint32_t val, bus_size_t count) 462 { 463 volatile uint32_t *addr = (void *)(bsh + offset); 464 465 val = bswap32(val); 466 while (count--) 467 *addr++ = val; 468 } 469 470 /* 471 * void bus_space_set_region_stream_N(bus_space_tag_t tag, 472 * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, 473 * bus_size_t count); 474 * 475 * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described 476 * by tag/handle starting at `offset'. 477 */ 478 void 479 bus_space_set_region_stream_1(bus_space_tag_t tag, bus_space_handle_t bsh, 480 bus_size_t offset, uint8_t val, bus_size_t count) 481 { 482 volatile uint8_t *addr = (void *)(bsh + offset); 483 484 while (count--) 485 *addr++ = val; 486 } 487 488 void 489 bus_space_set_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh, 490 bus_size_t offset, uint16_t val, bus_size_t count) 491 { 492 volatile uint16_t *addr = (void *)(bsh + offset); 493 494 while (count--) 495 *addr++ = val; 496 } 497 498 void 499 bus_space_set_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh, 500 bus_size_t offset, uint32_t val, bus_size_t count) 501 { 502 volatile uint32_t *addr = (void *)(bsh + offset); 503 504 while (count--) 505 *addr++ = val; 506 } 507 508 /* 509 * void bus_space_copy_region_N(bus_space_tag_t tag, 510 * bus_space_handle_t bsh1, bus_size_t off1, 511 * bus_space_handle_t bsh2, bus_size_t off2, 512 * bus_size_t count); 513 * 514 * Copy `count' 1, 2, 4, or 8 byte values from bus space starting 515 * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. 516 */ 517 void 518 bus_space_copy_region_1(bus_space_tag_t t, bus_space_handle_t h1, 519 bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 520 { 521 volatile uint8_t *addr1 = (void *)(h1 + o1); 522 volatile uint8_t *addr2 = (void *)(h2 + o2); 523 524 if (addr1 >= addr2) { /* src after dest: copy forward */ 525 while (c--) 526 *addr2++ = *addr1++; 527 } else { /* dest after src: copy backwards */ 528 addr1 += c - 1; 529 addr2 += c - 1; 530 while (c--) 531 *addr2-- = *addr1--; 532 } 533 } 534 535 void 536 bus_space_copy_region_2(bus_space_tag_t t, bus_space_handle_t h1, 537 bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 538 { 539 volatile uint16_t *addr1 = (void *)(h1 + o1); 540 volatile uint16_t *addr2 = (void *)(h2 + o2); 541 542 if (addr1 >= addr2) { /* src after dest: copy forward */ 543 while (c--) 544 *addr2++ = *addr1++; 545 } else { /* dest after src: copy backwards */ 546 addr1 += c - 1; 547 addr2 += c - 1; 548 while (c--) 549 *addr2-- = *addr1--; 550 } 551 } 552 553 void 554 bus_space_copy_region_4(bus_space_tag_t t, bus_space_handle_t h1, 555 bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, bus_size_t c) 556 { 557 volatile uint32_t *addr1 = (void *)(h1 + o1); 558 volatile uint32_t *addr2 = (void *)(h2 + o2); 559 560 if (addr1 >= addr2) { /* src after dest: copy forward */ 561 while (c--) 562 *addr2++ = *addr1++; 563 } else { /* dest after src: copy backwards */ 564 addr1 += c - 1; 565 addr2 += c - 1; 566 while (c--) 567 *addr2-- = *addr1--; 568 } 569 } 570 571
Indexes created Sun Oct 25 00:26:45 UTC 2026