1 /*- 2 * Copyright (c) 2002-2005 M Warner Losh. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 * 24 * This software may be derived from NetBSD i82365.c and other files with 25 * the following copyright: 26 * 27 * Copyright (c) 1997 Marc Horowitz. All rights reserved. 28 * 29 * Redistribution and use in source and binary forms, with or without 30 * modification, are permitted provided that the following conditions 31 * are met: 32 * 1. Redistributions of source code must retain the above copyright 33 * notice, this list of conditions and the following disclaimer. 34 * 2. Redistributions in binary form must reproduce the above copyright 35 * notice, this list of conditions and the following disclaimer in the 36 * documentation and/or other materials provided with the distribution. 37 * 3. All advertising materials mentioning features or use of this software 38 * must display the following acknowledgement: 39 * This product includes software developed by Marc Horowitz. 40 * 4. The name of the author may not be used to endorse or promote products 41 * derived from this software without specific prior written permission. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 44 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 45 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 46 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 47 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 48 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 49 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 50 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 51 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 52 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 53 */ 54 55 #include <sys/cdefs.h> 56 __FBSDID("$FreeBSD$"); 57 58 #include <sys/param.h> 59 #include <sys/systm.h> 60 #include <sys/condvar.h> 61 #include <sys/errno.h> 62 #include <sys/kernel.h> 63 #include <sys/malloc.h> 64 #include <sys/queue.h> 65 #include <sys/module.h> 66 #include <sys/lock.h> 67 #include <sys/mutex.h> 68 #include <sys/conf.h> 69 70 #include <sys/bus.h> 71 #include <machine/bus.h> 72 #include <sys/rman.h> 73 #include <machine/resource.h> 74 75 #include <dev/pccard/pccardreg.h> 76 #include <dev/pccard/pccardvar.h> 77 78 #include <dev/exca/excareg.h> 79 #include <dev/exca/excavar.h> 80 81 #ifdef EXCA_DEBUG 82 #define DEVPRINTF(dev, fmt, args...) device_printf((dev), (fmt), ## args) 83 #define DPRINTF(fmt, args...) printf(fmt, ## args) 84 #else 85 #define DEVPRINTF(dev, fmt, args...) 86 #define DPRINTF(fmt, args...) 87 #endif 88 89 #if 0 90 static const char *chip_names[] = 91 { 92 "CardBus socket", 93 "Intel i82365SL-A/B or clone", 94 "Intel i82365sl-DF step", 95 "VLSI chip", 96 "Cirrus Logic PD6710", 97 "Cirrus logic PD6722", 98 "Cirrus Logic PD6729", 99 "Vadem 365", 100 "Vadem 465", 101 "Vadem 468", 102 "Vadem 469", 103 "Ricoh RF5C296", 104 "Ricoh RF5C396", 105 "IBM clone", 106 "IBM KING PCMCIA Controller" 107 }; 108 #endif 109 110 static exca_getb_fn exca_mem_getb; 111 static exca_putb_fn exca_mem_putb; 112 static exca_getb_fn exca_io_getb; 113 static exca_putb_fn exca_io_putb; 114 115 /* memory */ 116 117 #define EXCA_MEMINFO(NUM) { \ 118 EXCA_SYSMEM_ADDR ## NUM ## _START_LSB, \ 119 EXCA_SYSMEM_ADDR ## NUM ## _START_MSB, \ 120 EXCA_SYSMEM_ADDR ## NUM ## _STOP_LSB, \ 121 EXCA_SYSMEM_ADDR ## NUM ## _STOP_MSB, \ 122 EXCA_SYSMEM_ADDR ## NUM ## _WIN, \ 123 EXCA_CARDMEM_ADDR ## NUM ## _LSB, \ 124 EXCA_CARDMEM_ADDR ## NUM ## _MSB, \ 125 EXCA_ADDRWIN_ENABLE_MEM ## NUM, \ 126 } 127 128 static struct mem_map_index_st { 129 int sysmem_start_lsb; 130 int sysmem_start_msb; 131 int sysmem_stop_lsb; 132 int sysmem_stop_msb; 133 int sysmem_win; 134 int cardmem_lsb; 135 int cardmem_msb; 136 int memenable; 137 } mem_map_index[] = { 138 EXCA_MEMINFO(0), 139 EXCA_MEMINFO(1), 140 EXCA_MEMINFO(2), 141 EXCA_MEMINFO(3), 142 EXCA_MEMINFO(4) 143 }; 144 #undef EXCA_MEMINFO 145 146 static uint8_t 147 exca_mem_getb(struct exca_softc *sc, int reg) 148 { 149 return (bus_space_read_1(sc->bst, sc->bsh, sc->offset + reg)); 150 } 151 152 static void 153 exca_mem_putb(struct exca_softc *sc, int reg, uint8_t val) 154 { 155 bus_space_write_1(sc->bst, sc->bsh, sc->offset + reg, val); 156 } 157 158 static uint8_t 159 exca_io_getb(struct exca_softc *sc, int reg) 160 { 161 bus_space_write_1(sc->bst, sc->bsh, EXCA_REG_INDEX, reg + sc->offset); 162 return (bus_space_read_1(sc->bst, sc->bsh, EXCA_REG_DATA)); 163 } 164 165 static void 166 exca_io_putb(struct exca_softc *sc, int reg, uint8_t val) 167 { 168 bus_space_write_1(sc->bst, sc->bsh, EXCA_REG_INDEX, reg + sc->offset); 169 bus_space_write_1(sc->bst, sc->bsh, EXCA_REG_DATA, val); 170 } 171 172 /* 173 * Helper function. This will map the requested memory slot. We setup the 174 * map before we call this function. This is used to initially force the 175 * mapping, as well as later restore the mapping after it has been destroyed 176 * in some fashion (due to a power event typically). 177 */ 178 static void 179 exca_do_mem_map(struct exca_softc *sc, int win) 180 { 181 struct mem_map_index_st *map; 182 struct pccard_mem_handle *mem; 183 uint32_t offset; 184 185 map = &mem_map_index[win]; 186 mem = &sc->mem[win]; 187 offset = ((mem->cardaddr >> EXCA_CARDMEM_ADDRX_SHIFT) - 188 (mem->addr >> EXCA_SYSMEM_ADDRX_SHIFT)) & 0x3fff; 189 exca_putb(sc, map->sysmem_start_lsb, 190 (mem->addr >> EXCA_SYSMEM_ADDRX_SHIFT) & 0xff); 191 exca_putb(sc, map->sysmem_start_msb, 192 ((mem->addr >> (EXCA_SYSMEM_ADDRX_SHIFT + 8)) & 193 EXCA_SYSMEM_ADDRX_START_MSB_ADDR_MASK)); 194 195 exca_putb(sc, map->sysmem_stop_lsb, 196 ((mem->addr + mem->realsize - 1) >> 197 EXCA_SYSMEM_ADDRX_SHIFT) & 0xff); 198 exca_putb(sc, map->sysmem_stop_msb, 199 (((mem->addr + mem->realsize - 1) >> 200 (EXCA_SYSMEM_ADDRX_SHIFT + 8)) & 201 EXCA_SYSMEM_ADDRX_STOP_MSB_ADDR_MASK) | 202 EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT2); 203 204 exca_putb(sc, map->sysmem_win, 205 (mem->addr >> EXCA_MEMREG_WIN_SHIFT) & 0xff); 206 207 exca_putb(sc, map->cardmem_lsb, offset & 0xff); 208 exca_putb(sc, map->cardmem_msb, (((offset >> 8) & 0xff) & 209 EXCA_CARDMEM_ADDRX_MSB_ADDR_MASK) | 210 ((mem->kind == PCCARD_A_MEM_ATTR) ? 211 EXCA_CARDMEM_ADDRX_MSB_REGACTIVE_ATTR : 0)); 212 213 #ifdef EXCA_DEBUG 214 if (mem->kind == PCCARD_A_MEM_ATTR) 215 printf("attribtue memory\n"); 216 else 217 printf("common memory\n"); 218 #endif 219 exca_setb(sc, EXCA_ADDRWIN_ENABLE, map->memenable | 220 EXCA_ADDRWIN_ENABLE_MEMCS16); 221 222 DELAY(100); 223 #ifdef EXCA_DEBUG 224 { 225 int r1, r2, r3, r4, r5, r6, r7; 226 r1 = exca_getb(sc, map->sysmem_start_msb); 227 r2 = exca_getb(sc, map->sysmem_start_lsb); 228 r3 = exca_getb(sc, map->sysmem_stop_msb); 229 r4 = exca_getb(sc, map->sysmem_stop_lsb); 230 r5 = exca_getb(sc, map->cardmem_msb); 231 r6 = exca_getb(sc, map->cardmem_lsb); 232 r7 = exca_getb(sc, map->sysmem_win); 233 printf("exca_do_mem_map win %d: %02x%02x %02x%02x " 234 "%02x%02x %02x (%08x+%06x.%06x*%06x)\n", 235 win, r1, r2, r3, r4, r5, r6, r7, 236 mem->addr, mem->size, mem->realsize, 237 mem->cardaddr); 238 } 239 #endif 240 } 241 242 /* 243 * public interface to map a resource. kind is the type of memory to 244 * map (either common or attribute). Memory created via this interface 245 * starts out at card address 0. Since the only way to set this is 246 * to set it on a struct resource after it has been mapped, we're safe 247 * in maping this assumption. Note that resources can be remapped using 248 * exca_do_mem_map so that's how the card address can be set later. 249 */ 250 int 251 exca_mem_map(struct exca_softc *sc, int kind, struct resource *res) 252 { 253 int win; 254 255 for (win = 0; win < EXCA_MEM_WINS; win++) { 256 if ((sc->memalloc & (1 << win)) == 0) { 257 sc->memalloc |= (1 << win); 258 break; 259 } 260 } 261 if (win >= EXCA_MEM_WINS) 262 return (1); 263 if (((rman_get_start(res) >> EXCA_MEMREG_WIN_SHIFT) & 0xff) != 0 && 264 (sc->flags & EXCA_HAS_MEMREG_WIN) == 0) { 265 device_printf(sc->dev, "Does not support mapping above 24M."); 266 return (1); 267 } 268 269 sc->mem[win].cardaddr = 0; 270 sc->mem[win].memt = rman_get_bustag(res); 271 sc->mem[win].memh = rman_get_bushandle(res); 272 sc->mem[win].addr = rman_get_start(res); 273 sc->mem[win].size = rman_get_end(res) - sc->mem[win].addr + 1; 274 sc->mem[win].realsize = sc->mem[win].size + EXCA_MEM_PAGESIZE - 1; 275 sc->mem[win].realsize = sc->mem[win].realsize - 276 (sc->mem[win].realsize % EXCA_MEM_PAGESIZE); 277 sc->mem[win].kind = kind; 278 DPRINTF("exca_mem_map window %d bus %x+%x card addr %x\n", 279 win, sc->mem[win].addr, sc->mem[win].size, sc->mem[win].cardaddr); 280 exca_do_mem_map(sc, win); 281 282 return (0); 283 } 284 285 /* 286 * Private helper function. This turns off a given memory map that is in 287 * use. We do this by just clearing the enable bit in the pcic. If we needed 288 * to make memory unmapping/mapping pairs faster, we would have to store 289 * more state information about the pcic and then use that to intelligently 290 * to the map/unmap. However, since we don't do that sort of thing often 291 * (generally just at configure time), it isn't a case worth optimizing. 292 */ 293 static void 294 exca_mem_unmap(struct exca_softc *sc, int window) 295 { 296 if (window < 0 || window >= EXCA_MEM_WINS) 297 panic("exca_mem_unmap: window out of range"); 298 299 exca_clrb(sc, EXCA_ADDRWIN_ENABLE, mem_map_index[window].memenable); 300 sc->memalloc &= ~(1 << window); 301 } 302 303 /* 304 * Find the map that we're using to hold the resoruce. This works well 305 * so long as the client drivers don't do silly things like map the same 306 * area mutliple times, or map both common and attribute memory at the 307 * same time. This latter restriction is a bug. We likely should just 308 * store a pointer to the res in the mem[x] data structure. 309 */ 310 static int 311 exca_mem_findmap(struct exca_softc *sc, struct resource *res) 312 { 313 int win; 314 315 for (win = 0; win < EXCA_MEM_WINS; win++) { 316 if (sc->mem[win].memt == rman_get_bustag(res) && 317 sc->mem[win].addr == rman_get_start(res) && 318 sc->mem[win].size == rman_get_size(res)) 319 return (win); 320 } 321 return (-1); 322 } 323 324 /* 325 * Set the memory flag. This means that we are setting if the memory 326 * is coming from attribute memory or from common memory on the card. 327 * CIS entries are generally in attribute memory (although they can 328 * reside in common memory). Generally, this is the only use for attribute 329 * memory. However, some cards require their drivers to dance in both 330 * common and/or attribute memory and this interface (and setting the 331 * offset interface) exist for such cards. 332 */ 333 int 334 exca_mem_set_flags(struct exca_softc *sc, struct resource *res, uint32_t flags) 335 { 336 int win; 337 338 win = exca_mem_findmap(sc, res); 339 if (win < 0) { 340 device_printf(sc->dev, 341 "set_res_flags: specified resource not active\n"); 342 return (ENOENT); 343 } 344 345 sc->mem[win].kind = flags; 346 exca_do_mem_map(sc, win); 347 return (0); 348 } 349 350 /* 351 * Given a resource, go ahead and unmap it if we can find it in the 352 * resrouce list that's used. 353 */ 354 int 355 exca_mem_unmap_res(struct exca_softc *sc, struct resource *res) 356 { 357 int win; 358 359 win = exca_mem_findmap(sc, res); 360 if (win < 0) 361 return (ENOENT); 362 exca_mem_unmap(sc, win); 363 return (0); 364 } 365 366 /* 367 * Set the offset of the memory. We use this for reading the CIS and 368 * frobbing the pccard's pccard registers (POR, etc). Some drivers 369 * need to access this functionality as well, since they have receive 370 * buffers defined in the attribute memory. 371 */ 372 int 373 exca_mem_set_offset(struct exca_softc *sc, struct resource *res, 374 uint32_t cardaddr, uint32_t *deltap) 375 { 376 int win; 377 uint32_t delta; 378 379 win = exca_mem_findmap(sc, res); 380 if (win < 0) { 381 device_printf(sc->dev, 382 "set_memory_offset: specified resource not active\n"); 383 return (ENOENT); 384 } 385 sc->mem[win].cardaddr = cardaddr & ~(EXCA_MEM_PAGESIZE - 1); 386 delta = cardaddr % EXCA_MEM_PAGESIZE; 387 if (deltap) 388 *deltap = delta; 389 sc->mem[win].realsize = sc->mem[win].size + delta + 390 EXCA_MEM_PAGESIZE - 1; 391 sc->mem[win].realsize = sc->mem[win].realsize - 392 (sc->mem[win].realsize % EXCA_MEM_PAGESIZE); 393 exca_do_mem_map(sc, win); 394 return (0); 395 } 396 397 398 /* I/O */ 399 400 #define EXCA_IOINFO(NUM) { \ 401 EXCA_IOADDR ## NUM ## _START_LSB, \ 402 EXCA_IOADDR ## NUM ## _START_MSB, \ 403 EXCA_IOADDR ## NUM ## _STOP_LSB, \ 404 EXCA_IOADDR ## NUM ## _STOP_MSB, \ 405 EXCA_ADDRWIN_ENABLE_IO ## NUM, \ 406 EXCA_IOCTL_IO ## NUM ## _WAITSTATE \ 407 | EXCA_IOCTL_IO ## NUM ## _ZEROWAIT \ 408 | EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_MASK \ 409 | EXCA_IOCTL_IO ## NUM ## _DATASIZE_MASK, \ 410 { \ 411 EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_CARD, \ 412 EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_DATASIZE \ 413 | EXCA_IOCTL_IO ## NUM ## _DATASIZE_8BIT, \ 414 EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_DATASIZE \ 415 | EXCA_IOCTL_IO ## NUM ## _DATASIZE_16BIT, \ 416 } \ 417 } 418 419 static struct io_map_index_st { 420 int start_lsb; 421 int start_msb; 422 int stop_lsb; 423 int stop_msb; 424 int ioenable; 425 int ioctlmask; 426 int ioctlbits[3]; /* indexed by PCCARD_WIDTH_* */ 427 } io_map_index[] = { 428 EXCA_IOINFO(0), 429 EXCA_IOINFO(1), 430 }; 431 #undef EXCA_IOINFO 432 433 static void 434 exca_do_io_map(struct exca_softc *sc, int win) 435 { 436 struct io_map_index_st *map; 437 438 struct pccard_io_handle *io; 439 440 map = &io_map_index[win]; 441 io = &sc->io[win]; 442 exca_putb(sc, map->start_lsb, io->addr & 0xff); 443 exca_putb(sc, map->start_msb, (io->addr >> 8) & 0xff); 444 445 exca_putb(sc, map->stop_lsb, (io->addr + io->size - 1) & 0xff); 446 exca_putb(sc, map->stop_msb, ((io->addr + io->size - 1) >> 8) & 0xff); 447 448 exca_clrb(sc, EXCA_IOCTL, map->ioctlmask); 449 exca_setb(sc, EXCA_IOCTL, map->ioctlbits[io->width]); 450 451 exca_setb(sc, EXCA_ADDRWIN_ENABLE, map->ioenable); 452 #ifdef EXCA_DEBUG 453 { 454 int r1, r2, r3, r4; 455 r1 = exca_getb(sc, map->start_msb); 456 r2 = exca_getb(sc, map->start_lsb); 457 r3 = exca_getb(sc, map->stop_msb); 458 r4 = exca_getb(sc, map->stop_lsb); 459 DPRINTF("exca_do_io_map window %d: %02x%02x %02x%02x " 460 "(%08x+%08x)\n", win, r1, r2, r3, r4, 461 io->addr, io->size); 462 } 463 #endif 464 } 465 466 int 467 exca_io_map(struct exca_softc *sc, int width, struct resource *r) 468 { 469 int win; 470 #ifdef EXCA_DEBUG 471 static char *width_names[] = { "auto", "io8", "io16"}; 472 #endif 473 for (win=0; win < EXCA_IO_WINS; win++) { 474 if ((sc->ioalloc & (1 << win)) == 0) { 475 sc->ioalloc |= (1 << win); 476 break; 477 } 478 } 479 if (win >= EXCA_IO_WINS) 480 return (1); 481 482 sc->io[win].iot = rman_get_bustag(r); 483 sc->io[win].ioh = rman_get_bushandle(r); 484 sc->io[win].addr = rman_get_start(r); 485 sc->io[win].size = rman_get_end(r) - sc->io[win].addr + 1; 486 sc->io[win].flags = 0; 487 sc->io[win].width = width; 488 DPRINTF("exca_io_map window %d %s port %x+%x\n", 489 win, width_names[width], sc->io[win].addr, 490 sc->io[win].size); 491 exca_do_io_map(sc, win); 492 493 return (0); 494 } 495 496 static void 497 exca_io_unmap(struct exca_softc *sc, int window) 498 { 499 if (window >= EXCA_IO_WINS) 500 panic("exca_io_unmap: window out of range"); 501 502 exca_clrb(sc, EXCA_ADDRWIN_ENABLE, io_map_index[window].ioenable); 503 504 sc->ioalloc &= ~(1 << window); 505 506 sc->io[window].iot = 0; 507 sc->io[window].ioh = 0; 508 sc->io[window].addr = 0; 509 sc->io[window].size = 0; 510 sc->io[window].flags = 0; 511 sc->io[window].width = 0; 512 } 513 514 static int 515 exca_io_findmap(struct exca_softc *sc, struct resource *res) 516 { 517 int win; 518 519 for (win = 0; win < EXCA_IO_WINS; win++) { 520 if (sc->io[win].iot == rman_get_bustag(res) && 521 sc->io[win].addr == rman_get_start(res) && 522 sc->io[win].size == rman_get_size(res)) 523 return (win); 524 } 525 return (-1); 526 } 527 528 529 int 530 exca_io_unmap_res(struct exca_softc *sc, struct resource *res) 531 { 532 int win; 533 534 win = exca_io_findmap(sc, res); 535 if (win < 0) 536 return (ENOENT); 537 exca_io_unmap(sc, win); 538 return (0); 539 } 540 541 /* Misc */ 542 543 /* 544 * If interrupts are enabled, then we should be able to just wait for 545 * an interrupt routine to wake us up. Busy waiting shouldn't be 546 * necessary. Sadly, not all legacy ISA cards support an interrupt 547 * for the busy state transitions, at least according to their datasheets, 548 * so we busy wait a while here.. 549 */ 550 static void 551 exca_wait_ready(struct exca_softc *sc) 552 { 553 int i; 554 DEVPRINTF(sc->dev, "exca_wait_ready: status 0x%02x\n", 555 exca_getb(sc, EXCA_IF_STATUS)); 556 for (i = 0; i < 10000; i++) { 557 if (exca_getb(sc, EXCA_IF_STATUS) & EXCA_IF_STATUS_READY) 558 return; 559 DELAY(500); 560 } 561 device_printf(sc->dev, "ready never happened, status = %02x\n", 562 exca_getb(sc, EXCA_IF_STATUS)); 563 } 564 565 /* 566 * Reset the card. Ideally, we'd do a lot of this via interrupts. 567 * However, many PC Cards will deassert the ready signal. This means 568 * that they are asserting an interrupt. This makes it hard to 569 * do anything but a busy wait here. One could argue that these 570 * such cards are broken, or that the bridge that allows this sort 571 * of interrupt through isn't quite what you'd want (and may be a standards 572 * violation). However, such arguing would leave a huge class of pc cards 573 * and bridges out of reach for use in the system. 574 * 575 * Maybe I should reevaluate the above based on the power bug I fixed 576 * in OLDCARD. 577 */ 578 void 579 exca_reset(struct exca_softc *sc, device_t child) 580 { 581 int win; 582 583 /* enable socket i/o */ 584 exca_setb(sc, EXCA_PWRCTL, EXCA_PWRCTL_OE); 585 586 exca_putb(sc, EXCA_INTR, EXCA_INTR_ENABLE); 587 /* hold reset for 30ms */ 588 DELAY(30*1000); 589 /* clear the reset flag */ 590 exca_setb(sc, EXCA_INTR, EXCA_INTR_RESET); 591 /* wait 20ms as per pc card standard (r2.01) section 4.3.6 */ 592 DELAY(20*1000); 593 594 exca_wait_ready(sc); 595 596 /* disable all address windows */ 597 exca_putb(sc, EXCA_ADDRWIN_ENABLE, 0); 598 599 exca_setb(sc, EXCA_INTR, EXCA_INTR_CARDTYPE_IO); 600 DEVPRINTF(sc->dev, "card type is io\n"); 601 602 /* reinstall all the memory and io mappings */ 603 for (win = 0; win < EXCA_MEM_WINS; ++win) 604 if (sc->memalloc & (1 << win)) 605 exca_do_mem_map(sc, win); 606 for (win = 0; win < EXCA_IO_WINS; ++win) 607 if (sc->ioalloc & (1 << win)) 608 exca_do_io_map(sc, win); 609 } 610 611 /* 612 * Initialize the exca_softc data structure for the first time. 613 */ 614 void 615 exca_init(struct exca_softc *sc, device_t dev, 616 bus_space_tag_t bst, bus_space_handle_t bsh, uint32_t offset) 617 { 618 sc->dev = dev; 619 sc->memalloc = 0; 620 sc->ioalloc = 0; 621 sc->bst = bst; 622 sc->bsh = bsh; 623 sc->offset = offset; 624 sc->flags = 0; 625 sc->getb = exca_mem_getb; 626 sc->putb = exca_mem_putb; 627 } 628 629 /* 630 * Is this socket valid? 631 */ 632 static int 633 exca_valid_slot(struct exca_softc *exca) 634 { 635 uint8_t c; 636 637 /* Assume the worst */ 638 exca->chipset = EXCA_BOGUS; 639 640 /* 641 * see if there's a PCMCIA controller here 642 * Intel PCMCIA controllers use 0x82 and 0x83 643 * IBM clone chips use 0x88 and 0x89, apparently 644 */ 645 c = exca_getb(exca, EXCA_IDENT); 646 if ((c & EXCA_IDENT_IFTYPE_MASK) != EXCA_IDENT_IFTYPE_MEM_AND_IO) 647 return (0); 648 if ((c & EXCA_IDENT_ZERO) != 0) 649 return (0); 650 switch (c & EXCA_IDENT_REV_MASK) { 651 /* 652 * 82365 or clones. 653 */ 654 case EXCA_IDENT_REV_I82365SLR0: 655 case EXCA_IDENT_REV_I82365SLR1: 656 exca->chipset = EXCA_I82365; 657 /* 658 * Check for Vadem chips by unlocking their extra 659 * registers and looking for valid ID. Bit 3 in 660 * the ID register is normally 0, except when 661 * EXCA_VADEMREV is set. Other bridges appear 662 * to ignore this frobbing. 663 */ 664 bus_space_write_1(exca->bst, exca->bsh, EXCA_REG_INDEX, 665 EXCA_VADEM_COOKIE1); 666 bus_space_write_1(exca->bst, exca->bsh, EXCA_REG_INDEX, 667 EXCA_VADEM_COOKIE2); 668 exca_setb(exca, EXCA_VADEM_VMISC, EXCA_VADEM_REV); 669 c = exca_getb(exca, EXCA_IDENT); 670 if (c & 0x08) { 671 switch (c & 7) { 672 case 1: 673 exca->chipset = EXCA_VG365; 674 break; 675 case 2: 676 exca->chipset = EXCA_VG465; 677 break; 678 case 3: 679 exca->chipset = EXCA_VG468; 680 break; 681 default: 682 exca->chipset = EXCA_VG469; 683 break; 684 } 685 exca_clrb(exca, EXCA_VADEM_VMISC, EXCA_VADEM_REV); 686 break; 687 } 688 /* 689 * Check for RICOH RF5C[23]96 PCMCIA Controller 690 */ 691 c = exca_getb(exca, EXCA_RICOH_ID); 692 if (c == EXCA_RID_396) { 693 exca->chipset = EXCA_RF5C396; 694 break; 695 } else if (c == EXCA_RID_296) { 696 exca->chipset = EXCA_RF5C296; 697 break; 698 } 699 /* 700 * Check for Cirrus logic chips. 701 */ 702 exca_putb(exca, EXCA_CIRRUS_CHIP_INFO, 0); 703 c = exca_getb(exca, EXCA_CIRRUS_CHIP_INFO); 704 if ((c & EXCA_CIRRUS_CHIP_INFO_CHIP_ID) == 705 EXCA_CIRRUS_CHIP_INFO_CHIP_ID) { 706 c = exca_getb(exca, EXCA_CIRRUS_CHIP_INFO); 707 if ((c & EXCA_CIRRUS_CHIP_INFO_CHIP_ID) == 0) { 708 if (c & EXCA_CIRRUS_CHIP_INFO_SLOTS) 709 exca->chipset = EXCA_PD6722; 710 else 711 exca->chipset = EXCA_PD6710; 712 break; 713 } 714 } 715 break; 716 717 case EXCA_IDENT_REV_I82365SLDF: 718 /* 719 * Intel i82365sl-DF step or maybe a vlsi 82c146 720 * we detected the vlsi case earlier, so if the controller 721 * isn't set, we know it is a i82365sl step D. 722 */ 723 exca->chipset = EXCA_I82365SL_DF; 724 break; 725 case EXCA_IDENT_REV_IBM1: 726 case EXCA_IDENT_REV_IBM2: 727 exca->chipset = EXCA_IBM; 728 break; 729 case EXCA_IDENT_REV_IBM_KING: 730 exca->chipset = EXCA_IBM_KING; 731 break; 732 default: 733 return (0); 734 } 735 return (1); 736 } 737 738 /* 739 * Probe the expected slots. We maybe should set the ID for each of these 740 * slots too while we're at it. But maybe that belongs to a separate 741 * function. 742 * 743 * The caller must guarantee that at least EXCA_NSLOTS are present in exca. 744 */ 745 int 746 exca_probe_slots(device_t dev, struct exca_softc *exca, bus_space_tag_t iot, 747 bus_space_handle_t ioh) 748 { 749 int err; 750 int i; 751 752 err = ENXIO; 753 for (i = 0; i < EXCA_NSLOTS; i++) { 754 exca_init(&exca[i], dev, iot, ioh, i * EXCA_SOCKET_SIZE); 755 exca->getb = exca_io_getb; 756 exca->putb = exca_io_putb; 757 if (exca_valid_slot(&exca[i])) 758 err = 0; 759 } 760 return (err); 761 } 762 763 void 764 exca_insert(struct exca_softc *exca) 765 { 766 if (exca->pccarddev != NULL) { 767 if (CARD_ATTACH_CARD(exca->pccarddev) != 0) 768 device_printf(exca->dev, 769 "PC Card card activation failed\n"); 770 } else { 771 device_printf(exca->dev, 772 "PC Card inserted, but no pccard bus.\n"); 773 } 774 } 775 776 777 void 778 exca_removal(struct exca_softc *exca) 779 { 780 if (exca->pccarddev != NULL) 781 CARD_DETACH_CARD(exca->pccarddev); 782 } 783 784 int 785 exca_activate_resource(struct exca_softc *exca, device_t child, int type, 786 int rid, struct resource *res) 787 { 788 int err; 789 if (!(rman_get_flags(res) & RF_ACTIVE)) { /* not already activated */ 790 switch (type) { 791 case SYS_RES_IOPORT: 792 err = exca_io_map(exca, PCCARD_WIDTH_AUTO, res); 793 break; 794 case SYS_RES_MEMORY: 795 err = exca_mem_map(exca, PCCARD_A_MEM_COM, res); 796 break; 797 default: 798 err = 0; 799 break; 800 } 801 if (err) 802 return (err); 803 804 } 805 return (BUS_ACTIVATE_RESOURCE(device_get_parent(exca->dev), child, 806 type, rid, res)); 807 } 808 809 int 810 exca_deactivate_resource(struct exca_softc *exca, device_t child, int type, 811 int rid, struct resource *res) 812 { 813 if (rman_get_flags(res) & RF_ACTIVE) { /* if activated */ 814 switch (type) { 815 case SYS_RES_IOPORT: 816 if (exca_io_unmap_res(exca, res)) 817 return (ENOENT); 818 break; 819 case SYS_RES_MEMORY: 820 if (exca_mem_unmap_res(exca, res)) 821 return (ENOENT); 822 break; 823 } 824 } 825 return (BUS_DEACTIVATE_RESOURCE(device_get_parent(exca->dev), child, 826 type, rid, res)); 827 } 828 829 #if 0 830 static struct resource * 831 exca_alloc_resource(struct exca_softc *sc, device_t child, int type, int *rid, 832 u_long start, u_long end, u_long count, uint flags) 833 { 834 struct resource *res = NULL; 835 int tmp; 836 837 switch (type) { 838 case SYS_RES_MEMORY: 839 if (start < cbb_start_mem) 840 start = cbb_start_mem; 841 if (end < start) 842 end = start; 843 flags = (flags & ~RF_ALIGNMENT_MASK) | 844 rman_make_alignment_flags(CBB_MEMALIGN); 845 break; 846 case SYS_RES_IOPORT: 847 if (start < cbb_start_16_io) 848 start = cbb_start_16_io; 849 if (end < start) 850 end = start; 851 break; 852 case SYS_RES_IRQ: 853 tmp = rman_get_start(sc->irq_res); 854 if (start > tmp || end < tmp || count != 1) { 855 device_printf(child, "requested interrupt %ld-%ld," 856 "count = %ld not supported by cbb\n", 857 start, end, count); 858 return (NULL); 859 } 860 flags |= RF_SHAREABLE; 861 start = end = rman_get_start(sc->irq_res); 862 break; 863 } 864 res = BUS_ALLOC_RESOURCE(up, child, type, rid, 865 start, end, count, flags & ~RF_ACTIVE); 866 if (res == NULL) 867 return (NULL); 868 cbb_insert_res(sc, res, type, *rid); 869 if (flags & RF_ACTIVE) { 870 if (bus_activate_resource(child, type, *rid, res) != 0) { 871 bus_release_resource(child, type, *rid, res); 872 return (NULL); 873 } 874 } 875 876 return (res); 877 } 878 879 static int 880 exca_release_resource(struct exca_softc *sc, device_t child, int type, 881 int rid, struct resource *res) 882 { 883 int error; 884 885 if (rman_get_flags(res) & RF_ACTIVE) { 886 error = bus_deactivate_resource(child, type, rid, res); 887 if (error != 0) 888 return (error); 889 } 890 cbb_remove_res(sc, res); 891 return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child, 892 type, rid, res)); 893 } 894 #endif 895 896 static int 897 exca_modevent(module_t mod, int cmd, void *arg) 898 { 899 return 0; 900 } 901 902 DEV_MODULE(exca, exca_modevent, NULL); 903 MODULE_VERSION(exca, 1); 904