obio.c revision 1.5.4.1
1 /* $NetBSD: obio.c,v 1.5.4.1 2008/05/16 02:22:42 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 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. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: obio.c,v 1.5.4.1 2008/05/16 02:22:42 yamt Exp $"); 34 35 #include "btn_obio.h" 36 #include "pwrsw_obio.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/device.h> 41 42 #include <uvm/uvm_extern.h> 43 44 #include <sh3/devreg.h> 45 #include <sh3/mmu.h> 46 #include <sh3/pmap.h> 47 #include <sh3/pte.h> 48 49 #include <machine/bus.h> 50 #include <machine/cpu.h> 51 #include <machine/intr.h> 52 53 #include <landisk/dev/obiovar.h> 54 55 #if (NPWRSW_OBIO > 0) || (NBTN_OBIO > 0) 56 #include <dev/sysmon/sysmonvar.h> 57 #include <dev/sysmon/sysmon_taskq.h> 58 #endif 59 60 #include "locators.h" 61 62 63 struct obio_softc { 64 device_t sc_dev; 65 66 bus_space_tag_t sc_iot; /* io space tag */ 67 bus_space_tag_t sc_memt; /* mem space tag */ 68 }; 69 70 static int obio_match(device_t, cfdata_t, void *); 71 static void obio_attach(device_t, device_t, void *); 72 static int obio_print(void *, const char *); 73 static int obio_search(device_t, cfdata_t, const int *, void *); 74 75 CFATTACH_DECL_NEW(obio, sizeof(struct obio_softc), 76 obio_match, obio_attach, NULL, NULL); 77 78 static int 79 obio_match(device_t parent, cfdata_t cf, void *aux) 80 { 81 struct obiobus_attach_args *oba = aux; 82 83 if (strcmp(oba->oba_busname, cf->cf_name)) 84 return (0); 85 86 return (1); 87 } 88 89 static void 90 obio_attach(device_t parent, device_t self, void *aux) 91 { 92 struct obio_softc *sc = device_private(self); 93 struct obiobus_attach_args *oba = aux; 94 95 aprint_naive("\n"); 96 aprint_normal("\n"); 97 98 sc->sc_dev = self; 99 100 sc->sc_iot = oba->oba_iot; 101 sc->sc_memt = oba->oba_memt; 102 103 #if (NPWRSW_OBIO > 0) || (NBTN_OBIO > 0) 104 sysmon_power_settype("landisk"); 105 sysmon_task_queue_init(); 106 #endif 107 108 config_search_ia(obio_search, self, "obio", NULL); 109 } 110 111 static int 112 obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux) 113 { 114 struct obio_io res_io[1]; 115 struct obio_iomem res_mem[1]; 116 struct obio_irq res_irq[1]; 117 struct obio_softc *sc = device_private(parent); 118 struct obio_attach_args oa; 119 int tryagain; 120 121 do { 122 oa.oa_iot = sc->sc_iot; 123 oa.oa_memt = sc->sc_memt; 124 125 res_io[0].or_addr = cf->cf_iobase; 126 res_io[0].or_size = cf->cf_iosize; 127 128 res_mem[0].or_addr = cf->cf_maddr; 129 res_mem[0].or_size = cf->cf_msize; 130 131 res_irq[0].or_irq = cf->cf_irq; 132 133 oa.oa_io = res_io; 134 oa.oa_nio = 1; 135 136 oa.oa_iomem = res_mem; 137 oa.oa_niomem = 1; 138 139 oa.oa_irq = res_irq; 140 oa.oa_nirq = 1; 141 142 tryagain = 0; 143 if (config_match(parent, cf, &oa) > 0) { 144 config_attach(parent, cf, &oa, obio_print); 145 tryagain = (cf->cf_fstate == FSTATE_STAR); 146 } 147 } while (tryagain); 148 149 return (0); 150 } 151 152 static int 153 obio_print(void *args, const char *name) 154 { 155 struct obio_attach_args *oa = args; 156 const char *sep; 157 int i; 158 159 if (oa->oa_nio) { 160 sep = ""; 161 aprint_normal(" port "); 162 for (i = 0; i < oa->oa_nio; i++) { 163 if (oa->oa_io[i].or_size == 0) 164 continue; 165 aprint_normal("%s0x%x", sep, oa->oa_io[i].or_addr); 166 if (oa->oa_io[i].or_size > 1) 167 aprint_normal("-0x%x", oa->oa_io[i].or_addr + 168 oa->oa_io[i].or_size - 1); 169 sep = ","; 170 } 171 } 172 173 if (oa->oa_niomem) { 174 sep = ""; 175 aprint_normal(" iomem "); 176 for (i = 0; i < oa->oa_niomem; i++) { 177 if (oa->oa_iomem[i].or_size == 0) 178 continue; 179 aprint_normal("%s0x%x", sep, oa->oa_iomem[i].or_addr); 180 if (oa->oa_iomem[i].or_size > 1) 181 aprint_normal("-0x%x", oa->oa_iomem[i].or_addr + 182 oa->oa_iomem[i].or_size - 1); 183 sep = ","; 184 } 185 } 186 187 if (oa->oa_nirq) { 188 sep = ""; 189 aprint_normal(" irq "); 190 for (i = 0; i < oa->oa_nirq; i++) { 191 if (oa->oa_irq[i].or_irq == IRQUNK) 192 continue; 193 aprint_normal("%s%d", sep, oa->oa_irq[i].or_irq); 194 sep = ","; 195 } 196 } 197 198 return (UNCONF); 199 } 200 201 /* 202 * Set up an interrupt handler to start being called. 203 */ 204 void * 205 obio_intr_establish(int irq, int level, int (*ih_fun)(void *), void *ih_arg) 206 { 207 208 return extintr_establish(irq, level, ih_fun, ih_arg); 209 } 210 211 /* 212 * Deregister an interrupt handler. 213 */ 214 void 215 obio_intr_disestablish(void *arg) 216 { 217 218 extintr_disestablish(arg); 219 } 220 221 /* 222 * on-board I/O bus space 223 */ 224 #define OBIO_IOMEM_IO 0 /* space is i/o space */ 225 #define OBIO_IOMEM_MEM 1 /* space is mem space */ 226 #define OBIO_IOMEM_PCMCIA_IO 2 /* PCMCIA IO space */ 227 #define OBIO_IOMEM_PCMCIA_MEM 3 /* PCMCIA Mem space */ 228 #define OBIO_IOMEM_PCMCIA_ATT 4 /* PCMCIA Attr space */ 229 #define OBIO_IOMEM_PCMCIA_8BIT 0x8000 /* PCMCIA BUS 8 BIT WIDTH */ 230 #define OBIO_IOMEM_PCMCIA_IO8 \ 231 (OBIO_IOMEM_PCMCIA_IO|OBIO_IOMEM_PCMCIA_8BIT) 232 #define OBIO_IOMEM_PCMCIA_MEM8 \ 233 (OBIO_IOMEM_PCMCIA_MEM|OBIO_IOMEM_PCMCIA_8BIT) 234 #define OBIO_IOMEM_PCMCIA_ATT8 \ 235 (OBIO_IOMEM_PCMCIA_ATT|OBIO_IOMEM_PCMCIA_8BIT) 236 237 int obio_iomem_map(void *v, bus_addr_t bpa, bus_size_t size, int flags, 238 bus_space_handle_t *bshp); 239 void obio_iomem_unmap(void *v, bus_space_handle_t bsh, bus_size_t size); 240 int obio_iomem_subregion(void *v, bus_space_handle_t bsh, 241 bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp); 242 int obio_iomem_alloc(void *v, bus_addr_t rstart, bus_addr_t rend, 243 bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 244 bus_addr_t *bpap, bus_space_handle_t *bshp); 245 void obio_iomem_free(void *v, bus_space_handle_t bsh, bus_size_t size); 246 247 static int obio_iomem_add_mapping(bus_addr_t, bus_size_t, int, 248 bus_space_handle_t *); 249 250 static int 251 obio_iomem_add_mapping(bus_addr_t bpa, bus_size_t size, int type, 252 bus_space_handle_t *bshp) 253 { 254 u_long pa, endpa; 255 vaddr_t va; 256 pt_entry_t *pte; 257 unsigned int m = 0; 258 int io_type = type & ~OBIO_IOMEM_PCMCIA_8BIT; 259 260 pa = sh3_trunc_page(bpa); 261 endpa = sh3_round_page(bpa + size); 262 263 #ifdef DIAGNOSTIC 264 if (endpa <= pa) 265 panic("obio_iomem_add_mapping: overflow"); 266 #endif 267 268 va = uvm_km_alloc(kernel_map, endpa - pa, 0, UVM_KMF_VAONLY); 269 if (va == 0){ 270 printf("obio_iomem_add_mapping: nomem\n"); 271 return (ENOMEM); 272 } 273 274 *bshp = (bus_space_handle_t)(va + (bpa & PGOFSET)); 275 276 #define MODE(t, s) \ 277 ((t) & OBIO_IOMEM_PCMCIA_8BIT) ? \ 278 _PG_PCMCIA_ ## s ## 8 : \ 279 _PG_PCMCIA_ ## s ## 16 280 switch (io_type) { 281 default: 282 panic("unknown pcmcia space."); 283 /* NOTREACHED */ 284 case OBIO_IOMEM_PCMCIA_IO: 285 m = MODE(type, IO); 286 break; 287 case OBIO_IOMEM_PCMCIA_MEM: 288 m = MODE(type, MEM); 289 break; 290 case OBIO_IOMEM_PCMCIA_ATT: 291 m = MODE(type, ATTR); 292 break; 293 } 294 #undef MODE 295 296 for (; pa < endpa; pa += PAGE_SIZE, va += PAGE_SIZE) { 297 pmap_kenter_pa(va, pa, VM_PROT_READ | VM_PROT_WRITE); 298 pte = __pmap_kpte_lookup(va); 299 KDASSERT(pte); 300 *pte |= m; /* PTEA PCMCIA assistant bit */ 301 sh_tlb_update(0, va, *pte); 302 } 303 304 return (0); 305 } 306 307 int 308 obio_iomem_map(void *v, bus_addr_t bpa, bus_size_t size, 309 int flags, bus_space_handle_t *bshp) 310 { 311 bus_addr_t addr = SH3_PHYS_TO_P2SEG(bpa); 312 int error; 313 314 KASSERT((bpa & SH3_PHYS_MASK) == bpa); 315 316 if (bpa < 0x14000000 || bpa >= 0x1c000000) { 317 /* CS0,1,2,3,4,7 */ 318 *bshp = (bus_space_handle_t)addr; 319 return (0); 320 } 321 322 /* CS5,6 */ 323 error = obio_iomem_add_mapping(addr, size, (int)(u_long)v, bshp); 324 325 return (error); 326 } 327 328 void 329 obio_iomem_unmap(void *v, bus_space_handle_t bsh, bus_size_t size) 330 { 331 u_long va, endva; 332 bus_addr_t bpa; 333 334 if (bsh >= SH3_P2SEG_BASE && bsh <= SH3_P2SEG_END) { 335 /* maybe CS0,1,2,3,4,7 */ 336 return; 337 } 338 339 /* CS5,6 */ 340 va = sh3_trunc_page(bsh); 341 endva = sh3_round_page(bsh + size); 342 343 #ifdef DIAGNOSTIC 344 if (endva <= va) 345 panic("obio_io_unmap: overflow"); 346 #endif 347 348 pmap_extract(pmap_kernel(), va, &bpa); 349 bpa += bsh & PGOFSET; 350 351 pmap_kremove(va, endva - va); 352 353 /* 354 * Free the kernel virtual mapping. 355 */ 356 uvm_km_free(kernel_map, va, endva - va, UVM_KMF_VAONLY); 357 } 358 359 int 360 obio_iomem_subregion(void *v, bus_space_handle_t bsh, 361 bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp) 362 { 363 364 *nbshp = bsh + offset; 365 366 return (0); 367 } 368 369 int 370 obio_iomem_alloc(void *v, bus_addr_t rstart, bus_addr_t rend, 371 bus_size_t size, bus_size_t alignment, bus_size_t boundary, int flags, 372 bus_addr_t *bpap, bus_space_handle_t *bshp) 373 { 374 375 *bshp = *bpap = rstart; 376 377 return (0); 378 } 379 380 void 381 obio_iomem_free(void *v, bus_space_handle_t bsh, bus_size_t size) 382 { 383 384 obio_iomem_unmap(v, bsh, size); 385 } 386 387 /* 388 * on-board I/O bus space read/write 389 */ 390 uint8_t obio_iomem_read_1(void *v, bus_space_handle_t bsh, bus_size_t offset); 391 uint16_t obio_iomem_read_2(void *v, bus_space_handle_t bsh, bus_size_t offset); 392 uint32_t obio_iomem_read_4(void *v, bus_space_handle_t bsh, bus_size_t offset); 393 void obio_iomem_read_multi_1(void *v, bus_space_handle_t bsh, 394 bus_size_t offset, uint8_t *addr, bus_size_t count); 395 void obio_iomem_read_multi_2(void *v, bus_space_handle_t bsh, 396 bus_size_t offset, uint16_t *addr, bus_size_t count); 397 void obio_iomem_read_multi_4(void *v, bus_space_handle_t bsh, 398 bus_size_t offset, uint32_t *addr, bus_size_t count); 399 void obio_iomem_read_region_1(void *v, bus_space_handle_t bsh, 400 bus_size_t offset, uint8_t *addr, bus_size_t count); 401 void obio_iomem_read_region_2(void *v, bus_space_handle_t bsh, 402 bus_size_t offset, uint16_t *addr, bus_size_t count); 403 void obio_iomem_read_region_4(void *v, bus_space_handle_t bsh, 404 bus_size_t offset, uint32_t *addr, bus_size_t count); 405 void obio_iomem_write_1(void *v, bus_space_handle_t bsh, bus_size_t offset, 406 uint8_t value); 407 void obio_iomem_write_2(void *v, bus_space_handle_t bsh, bus_size_t offset, 408 uint16_t value); 409 void obio_iomem_write_4(void *v, bus_space_handle_t bsh, bus_size_t offset, 410 uint32_t value); 411 void obio_iomem_write_multi_1(void *v, bus_space_handle_t bsh, 412 bus_size_t offset, const uint8_t *addr, bus_size_t count); 413 void obio_iomem_write_multi_2(void *v, bus_space_handle_t bsh, 414 bus_size_t offset, const uint16_t *addr, bus_size_t count); 415 void obio_iomem_write_multi_4(void *v, bus_space_handle_t bsh, 416 bus_size_t offset, const uint32_t *addr, bus_size_t count); 417 void obio_iomem_write_region_1(void *v, bus_space_handle_t bsh, 418 bus_size_t offset, const uint8_t *addr, bus_size_t count); 419 void obio_iomem_write_region_2(void *v, bus_space_handle_t bsh, 420 bus_size_t offset, const uint16_t *addr, bus_size_t count); 421 void obio_iomem_write_region_4(void *v, bus_space_handle_t bsh, 422 bus_size_t offset, const uint32_t *addr, bus_size_t count); 423 void obio_iomem_set_multi_1(void *v, bus_space_handle_t bsh, bus_size_t offset, 424 uint8_t val, bus_size_t count); 425 void obio_iomem_set_multi_2(void *v, bus_space_handle_t bsh, bus_size_t offset, 426 uint16_t val, bus_size_t count); 427 void obio_iomem_set_multi_4(void *v, bus_space_handle_t bsh, bus_size_t offset, 428 uint32_t val, bus_size_t count); 429 void obio_iomem_set_region_1(void *v, bus_space_handle_t bsh, 430 bus_size_t offset, uint8_t val, bus_size_t count); 431 void obio_iomem_set_region_2(void *v, bus_space_handle_t bsh, 432 bus_size_t offset, uint16_t val, bus_size_t count); 433 void obio_iomem_set_region_4(void *v, bus_space_handle_t bsh, 434 bus_size_t offset, uint32_t val, bus_size_t count); 435 void obio_iomem_copy_region_1(void *v, bus_space_handle_t h1, bus_size_t o1, 436 bus_space_handle_t h2, bus_size_t o2, bus_size_t count); 437 void obio_iomem_copy_region_2(void *v, bus_space_handle_t h1, bus_size_t o1, 438 bus_space_handle_t h2, bus_size_t o2, bus_size_t count); 439 void obio_iomem_copy_region_4(void *v, bus_space_handle_t h1, bus_size_t o1, 440 bus_space_handle_t h2, bus_size_t o2, bus_size_t count); 441 442 struct _bus_space obio_bus_io = 443 { 444 .bs_cookie = (void *)OBIO_IOMEM_PCMCIA_IO, 445 446 .bs_map = obio_iomem_map, 447 .bs_unmap = obio_iomem_unmap, 448 .bs_subregion = obio_iomem_subregion, 449 450 .bs_alloc = obio_iomem_alloc, 451 .bs_free = obio_iomem_free, 452 453 .bs_r_1 = obio_iomem_read_1, 454 .bs_r_2 = obio_iomem_read_2, 455 .bs_r_4 = obio_iomem_read_4, 456 457 .bs_rm_1 = obio_iomem_read_multi_1, 458 .bs_rm_2 = obio_iomem_read_multi_2, 459 .bs_rm_4 = obio_iomem_read_multi_4, 460 461 .bs_rr_1 = obio_iomem_read_region_1, 462 .bs_rr_2 = obio_iomem_read_region_2, 463 .bs_rr_4 = obio_iomem_read_region_4, 464 465 .bs_w_1 = obio_iomem_write_1, 466 .bs_w_2 = obio_iomem_write_2, 467 .bs_w_4 = obio_iomem_write_4, 468 469 .bs_wm_1 = obio_iomem_write_multi_1, 470 .bs_wm_2 = obio_iomem_write_multi_2, 471 .bs_wm_4 = obio_iomem_write_multi_4, 472 473 .bs_wr_1 = obio_iomem_write_region_1, 474 .bs_wr_2 = obio_iomem_write_region_2, 475 .bs_wr_4 = obio_iomem_write_region_4, 476 477 .bs_sm_1 = obio_iomem_set_multi_1, 478 .bs_sm_2 = obio_iomem_set_multi_2, 479 .bs_sm_4 = obio_iomem_set_multi_4, 480 481 .bs_sr_1 = obio_iomem_set_region_1, 482 .bs_sr_2 = obio_iomem_set_region_2, 483 .bs_sr_4 = obio_iomem_set_region_4, 484 485 .bs_c_1 = obio_iomem_copy_region_1, 486 .bs_c_2 = obio_iomem_copy_region_2, 487 .bs_c_4 = obio_iomem_copy_region_4, 488 }; 489 490 struct _bus_space obio_bus_mem = 491 { 492 .bs_cookie = (void *)OBIO_IOMEM_PCMCIA_MEM, 493 494 .bs_map = obio_iomem_map, 495 .bs_unmap = obio_iomem_unmap, 496 .bs_subregion = obio_iomem_subregion, 497 498 .bs_alloc = obio_iomem_alloc, 499 .bs_free = obio_iomem_free, 500 501 .bs_r_1 = obio_iomem_read_1, 502 .bs_r_2 = obio_iomem_read_2, 503 .bs_r_4 = obio_iomem_read_4, 504 505 .bs_rm_1 = obio_iomem_read_multi_1, 506 .bs_rm_2 = obio_iomem_read_multi_2, 507 .bs_rm_4 = obio_iomem_read_multi_4, 508 509 .bs_rr_1 = obio_iomem_read_region_1, 510 .bs_rr_2 = obio_iomem_read_region_2, 511 .bs_rr_4 = obio_iomem_read_region_4, 512 513 .bs_w_1 = obio_iomem_write_1, 514 .bs_w_2 = obio_iomem_write_2, 515 .bs_w_4 = obio_iomem_write_4, 516 517 .bs_wm_1 = obio_iomem_write_multi_1, 518 .bs_wm_2 = obio_iomem_write_multi_2, 519 .bs_wm_4 = obio_iomem_write_multi_4, 520 521 .bs_wr_1 = obio_iomem_write_region_1, 522 .bs_wr_2 = obio_iomem_write_region_2, 523 .bs_wr_4 = obio_iomem_write_region_4, 524 525 .bs_sm_1 = obio_iomem_set_multi_1, 526 .bs_sm_2 = obio_iomem_set_multi_2, 527 .bs_sm_4 = obio_iomem_set_multi_4, 528 529 .bs_sr_1 = obio_iomem_set_region_1, 530 .bs_sr_2 = obio_iomem_set_region_2, 531 .bs_sr_4 = obio_iomem_set_region_4, 532 533 .bs_c_1 = obio_iomem_copy_region_1, 534 .bs_c_2 = obio_iomem_copy_region_2, 535 .bs_c_4 = obio_iomem_copy_region_4, 536 }; 537 538 /* read */ 539 uint8_t 540 obio_iomem_read_1(void *v, bus_space_handle_t bsh, bus_size_t offset) 541 { 542 543 return *(volatile uint8_t *)(bsh + offset); 544 } 545 546 uint16_t 547 obio_iomem_read_2(void *v, bus_space_handle_t bsh, bus_size_t offset) 548 { 549 550 return *(volatile uint16_t *)(bsh + offset); 551 } 552 553 uint32_t 554 obio_iomem_read_4(void *v, bus_space_handle_t bsh, bus_size_t offset) 555 { 556 557 return *(volatile uint32_t *)(bsh + offset); 558 } 559 560 void 561 obio_iomem_read_multi_1(void *v, bus_space_handle_t bsh, 562 bus_size_t offset, uint8_t *addr, bus_size_t count) 563 { 564 volatile uint8_t *p = (void *)(bsh + offset); 565 566 while (count--) { 567 *addr++ = *p; 568 } 569 } 570 571 void 572 obio_iomem_read_multi_2(void *v, bus_space_handle_t bsh, 573 bus_size_t offset, uint16_t *addr, bus_size_t count) 574 { 575 volatile uint16_t *p = (void *)(bsh + offset); 576 577 while (count--) { 578 *addr++ = *p; 579 } 580 } 581 582 void 583 obio_iomem_read_multi_4(void *v, bus_space_handle_t bsh, 584 bus_size_t offset, uint32_t *addr, bus_size_t count) 585 { 586 volatile uint32_t *p = (void *)(bsh + offset); 587 588 while (count--) { 589 *addr++ = *p; 590 } 591 } 592 593 void 594 obio_iomem_read_region_1(void *v, bus_space_handle_t bsh, 595 bus_size_t offset, uint8_t *addr, bus_size_t count) 596 { 597 volatile uint8_t *p = (void *)(bsh + offset); 598 599 while (count--) { 600 *addr++ = *p++; 601 } 602 } 603 604 void 605 obio_iomem_read_region_2(void *v, bus_space_handle_t bsh, 606 bus_size_t offset, uint16_t *addr, bus_size_t count) 607 { 608 volatile uint16_t *p = (void *)(bsh + offset); 609 610 while (count--) { 611 *addr++ = *p++; 612 } 613 } 614 615 void 616 obio_iomem_read_region_4(void *v, bus_space_handle_t bsh, 617 bus_size_t offset, uint32_t *addr, bus_size_t count) 618 { 619 volatile uint32_t *p = (void *)(bsh + offset); 620 621 while (count--) { 622 *addr++ = *p++; 623 } 624 } 625 626 /* write */ 627 void 628 obio_iomem_write_1(void *v, bus_space_handle_t bsh, bus_size_t offset, 629 uint8_t value) 630 { 631 632 *(volatile uint8_t *)(bsh + offset) = value; 633 } 634 635 void 636 obio_iomem_write_2(void *v, bus_space_handle_t bsh, bus_size_t offset, 637 uint16_t value) 638 { 639 640 *(volatile uint16_t *)(bsh + offset) = value; 641 } 642 643 void 644 obio_iomem_write_4(void *v, bus_space_handle_t bsh, bus_size_t offset, 645 uint32_t value) 646 { 647 648 *(volatile uint32_t *)(bsh + offset) = value; 649 } 650 651 void 652 obio_iomem_write_multi_1(void *v, bus_space_handle_t bsh, 653 bus_size_t offset, const uint8_t *addr, bus_size_t count) 654 { 655 volatile uint8_t *p = (void *)(bsh + offset); 656 657 while (count--) { 658 *p = *addr++; 659 } 660 } 661 662 void 663 obio_iomem_write_multi_2(void *v, bus_space_handle_t bsh, 664 bus_size_t offset, const uint16_t *addr, bus_size_t count) 665 { 666 volatile uint16_t *p = (void *)(bsh + offset); 667 668 while (count--) { 669 *p = *addr++; 670 } 671 } 672 673 void 674 obio_iomem_write_multi_4(void *v, bus_space_handle_t bsh, 675 bus_size_t offset, const uint32_t *addr, bus_size_t count) 676 { 677 volatile uint32_t *p = (void *)(bsh + offset); 678 679 while (count--) { 680 *p = *addr++; 681 } 682 } 683 684 void 685 obio_iomem_write_region_1(void *v, bus_space_handle_t bsh, 686 bus_size_t offset, const uint8_t *addr, bus_size_t count) 687 { 688 volatile uint8_t *p = (void *)(bsh + offset); 689 690 while (count--) { 691 *p++ = *addr++; 692 } 693 } 694 695 void 696 obio_iomem_write_region_2(void *v, bus_space_handle_t bsh, 697 bus_size_t offset, const uint16_t *addr, bus_size_t count) 698 { 699 volatile uint16_t *p = (void *)(bsh + offset); 700 701 while (count--) { 702 *p++ = *addr++; 703 } 704 } 705 706 void 707 obio_iomem_write_region_4(void *v, bus_space_handle_t bsh, 708 bus_size_t offset, const uint32_t *addr, bus_size_t count) 709 { 710 volatile uint32_t *p = (void *)(bsh + offset); 711 712 while (count--) { 713 *p++ = *addr++; 714 } 715 } 716 717 void 718 obio_iomem_set_multi_1(void *v, bus_space_handle_t bsh, 719 bus_size_t offset, uint8_t val, bus_size_t count) 720 { 721 volatile uint8_t *p = (void *)(bsh + offset); 722 723 while (count--) { 724 *p = val; 725 } 726 } 727 728 void 729 obio_iomem_set_multi_2(void *v, bus_space_handle_t bsh, 730 bus_size_t offset, uint16_t val, bus_size_t count) 731 { 732 volatile uint16_t *p = (void *)(bsh + offset); 733 734 while (count--) { 735 *p = val; 736 } 737 } 738 739 void 740 obio_iomem_set_multi_4(void *v, bus_space_handle_t bsh, 741 bus_size_t offset, uint32_t val, bus_size_t count) 742 { 743 volatile uint32_t *p = (void *)(bsh + offset); 744 745 while (count--) { 746 *p = val; 747 } 748 } 749 750 void 751 obio_iomem_set_region_1(void *v, bus_space_handle_t bsh, 752 bus_size_t offset, uint8_t val, bus_size_t count) 753 { 754 volatile uint8_t *addr = (void *)(bsh + offset); 755 756 while (count--) { 757 *addr++ = val; 758 } 759 } 760 761 void 762 obio_iomem_set_region_2(void *v, bus_space_handle_t bsh, 763 bus_size_t offset, uint16_t val, bus_size_t count) 764 { 765 volatile uint16_t *addr = (void *)(bsh + offset); 766 767 while (count--) { 768 *addr++ = val; 769 } 770 } 771 772 void 773 obio_iomem_set_region_4(void *v, bus_space_handle_t bsh, 774 bus_size_t offset, uint32_t val, bus_size_t count) 775 { 776 volatile uint32_t *addr = (void *)(bsh + offset); 777 778 while (count--) { 779 *addr++ = val; 780 } 781 } 782 783 void 784 obio_iomem_copy_region_1(void *v, bus_space_handle_t h1, bus_size_t o1, 785 bus_space_handle_t h2, bus_size_t o2, bus_size_t count) 786 { 787 volatile uint8_t *addr1 = (void *)(h1 + o1); 788 volatile uint8_t *addr2 = (void *)(h2 + o2); 789 790 if (addr1 >= addr2) { /* src after dest: copy forward */ 791 while (count--) { 792 *addr2++ = *addr1++; 793 } 794 } else { /* dest after src: copy backwards */ 795 addr1 += count - 1; 796 addr2 += count - 1; 797 while (count--) { 798 *addr2-- = *addr1--; 799 } 800 } 801 } 802 803 void 804 obio_iomem_copy_region_2(void *v, bus_space_handle_t h1, bus_size_t o1, 805 bus_space_handle_t h2, bus_size_t o2, bus_size_t count) 806 { 807 volatile uint16_t *addr1 = (void *)(h1 + o1); 808 volatile uint16_t *addr2 = (void *)(h2 + o2); 809 810 if (addr1 >= addr2) { /* src after dest: copy forward */ 811 while (count--) { 812 *addr2++ = *addr1++; 813 } 814 } else { /* dest after src: copy backwards */ 815 addr1 += count - 1; 816 addr2 += count - 1; 817 while (count--) { 818 *addr2-- = *addr1--; 819 } 820 } 821 } 822 823 void 824 obio_iomem_copy_region_4(void *v, bus_space_handle_t h1, bus_size_t o1, 825 bus_space_handle_t h2, bus_size_t o2, bus_size_t count) 826 { 827 volatile uint32_t *addr1 = (void *)(h1 + o1); 828 volatile uint32_t *addr2 = (void *)(h2 + o2); 829 830 if (addr1 >= addr2) { /* src after dest: copy forward */ 831 while (count--) { 832 *addr2++ = *addr1++; 833 } 834 } else { /* dest after src: copy backwards */ 835 addr1 += count - 1; 836 addr2 += count - 1; 837 while (count--) { 838 *addr2-- = *addr1--; 839 } 840 } 841 } 842
Indexes created Sun Oct 19 22:09:57 GMT 2025