1 /* $NetBSD: eppcic.c,v 1.12 2022/09/27 06:32:53 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 2005 HAMAJIMA Katsuomi. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: eppcic.c,v 1.12 2022/09/27 06:32:53 skrll Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/kmem.h> 35 #include <sys/device.h> 36 #include <sys/kthread.h> 37 #include <uvm/uvm_param.h> 38 #include <sys/bus.h> 39 #include <dev/pcmcia/pcmciareg.h> 40 #include <dev/pcmcia/pcmciavar.h> 41 #include <dev/pcmcia/pcmciachip.h> 42 #include <arm/ep93xx/epsocvar.h> 43 #include <arm/ep93xx/epgpiovar.h> 44 #include <arm/ep93xx/eppcicvar.h> 45 #include <arm/ep93xx/ep93xxreg.h> 46 #include <arm/ep93xx/epsmcreg.h> 47 #include "epled.h" 48 #if NEPLED > 0 49 #include <arm/ep93xx/epledvar.h> 50 #endif 51 52 #include "epgpio.h" 53 #if NEPGPIO == 0 54 #error "epgpio requires in eppcic" 55 #endif 56 57 #ifdef EPPCIC_DEBUG 58 int eppcic_debug = EPPCIC_DEBUG; 59 #define DPRINTFN(n,x) if (eppcic_debug>(n)) printf x; 60 #else 61 #define DPRINTFN(n,x) 62 #endif 63 64 /* Mem & I/O */ 65 #define SOCKET0_MCCD1 1 /* pin36/pin26 (negative) Card Detect 1 */ 66 #define SOCKET0_MCCD2 2 /* pin67/pin25 (negative) Card Detect 2 */ 67 #define SOCKET0_VS1 5 /* pin33/pin43 (negative) Voltage Sense 1 */ 68 #define SOCKET0_VS2 7 /* pin57/pin40 (negative) Voltage Sense 2 */ 69 /* Memory */ 70 #define SOCKET0_WP 0 /* pin33/pin24 Write Protect */ 71 #define SOCKET0_MCBVD1 3 /* pin63/pin46 Battery Voltage Detect 1 */ 72 #define SOCKET0_MCBVD2 4 /* pin62/pin45 Battery Voltage Detect 2 */ 73 #define SOCKET0_READY 6 /* pin16/pin37 Ready */ 74 /* I/O */ 75 #define SOCKET0_STSCHG 3 /* pin63/pin46 (negative) Status Change */ 76 #define SOCKET0_SPKR 4 /* pin62/pin45 (negative) Speaker */ 77 #define SOCKET0_IREQ 6 /* pin16/pin37 Interrupt Request */ 78 79 struct eppcic_handle { 80 int ph_socket; /* socket number */ 81 struct eppcic_softc *ph_sc; 82 device_t ph_card; 83 int (*ph_ih_func)(void *); 84 void *ph_ih_arg; 85 lwp_t *ph_event_thread; 86 int ph_run; /* ktread running */ 87 int ph_width; /* 8 or 16 */ 88 int ph_vcc; /* 3 or 5 */ 89 int ph_status[2]; /* cd1 and cd2 */ 90 int ph_port; /* GPIO port */ 91 int ph_cd[2]; /* card detect */ 92 int ph_vs[2]; /* voltage sense */ 93 int ph_ireq; /* interrupt request */ 94 struct { 95 bus_size_t reg; 96 bus_addr_t base; 97 bus_size_t size; 98 } ph_space[3]; 99 #define IO 0 100 #define COMMON 1 101 #define ATTRIBUTE 2 102 }; 103 104 static int eppcic_intr_carddetect(void *); 105 static int eppcic_intr_socket(void *); 106 static int eppcic_print(void *, const char *); 107 static void eppcic_event_thread(void *); 108 void eppcic_shutdown(void *); 109 110 static int eppcic_mem_alloc(pcmcia_chipset_handle_t, bus_size_t, 111 struct pcmcia_mem_handle *); 112 static void eppcic_mem_free(pcmcia_chipset_handle_t, 113 struct pcmcia_mem_handle *); 114 static int eppcic_mem_map(pcmcia_chipset_handle_t, int, bus_addr_t, bus_size_t, 115 struct pcmcia_mem_handle *, bus_size_t *, int *); 116 static void eppcic_mem_unmap(pcmcia_chipset_handle_t, int); 117 static int eppcic_io_alloc(pcmcia_chipset_handle_t, bus_addr_t, bus_size_t, 118 bus_size_t, struct pcmcia_io_handle *); 119 static void eppcic_io_free(pcmcia_chipset_handle_t, struct pcmcia_io_handle *); 120 static int eppcic_io_map(pcmcia_chipset_handle_t, int, bus_addr_t, bus_size_t, 121 struct pcmcia_io_handle *, int *); 122 static void eppcic_io_unmap(pcmcia_chipset_handle_t, int); 123 static void *eppcic_intr_establish(pcmcia_chipset_handle_t, 124 struct pcmcia_function *, 125 int, int (*)(void *), void *); 126 static void eppcic_intr_disestablish(pcmcia_chipset_handle_t, void *); 127 static void eppcic_socket_enable(pcmcia_chipset_handle_t); 128 static void eppcic_socket_disable(pcmcia_chipset_handle_t); 129 static void eppcic_socket_settype(pcmcia_chipset_handle_t, int); 130 131 static void eppcic_attach_socket(struct eppcic_handle *); 132 static void eppcic_config_socket(struct eppcic_handle *); 133 static int eppcic_get_voltage(struct eppcic_handle *); 134 static void eppcic_set_pcreg(struct eppcic_handle *, int); 135 136 static struct pcmcia_chip_functions eppcic_functions = { 137 eppcic_mem_alloc, eppcic_mem_free, 138 eppcic_mem_map, eppcic_mem_unmap, 139 eppcic_io_alloc, eppcic_io_free, 140 eppcic_io_map, eppcic_io_unmap, 141 eppcic_intr_establish, eppcic_intr_disestablish, 142 eppcic_socket_enable, eppcic_socket_disable, 143 eppcic_socket_settype 144 }; 145 146 void 147 eppcic_attach_common(device_t parent, device_t self, void *aux, 148 eppcic_chipset_tag_t pcic) 149 { 150 struct eppcic_softc *sc = device_private(self); 151 struct epsoc_attach_args *sa = aux; 152 struct eppcic_handle *ph; 153 int reg; 154 int i; 155 156 if (!sa->sa_gpio) { 157 printf("%s: epgpio requires\n", device_xname(self)); 158 return; 159 } 160 sc->sc_dev = self; 161 sc->sc_gpio = sa->sa_gpio; 162 sc->sc_iot = sa->sa_iot; 163 sc->sc_hclk = sa->sa_hclk; 164 sc->sc_pcic = pcic; 165 sc->sc_enable = 0; 166 if (bus_space_map(sa->sa_iot, sa->sa_addr, 167 sa->sa_size, 0, &sc->sc_ioh)){ 168 printf("%s: Cannot map registers\n", device_xname(self)); 169 return; 170 } 171 printf("\n"); 172 173 #if NEPLED > 0 174 epled_green_on(); 175 epled_red_off(); 176 #endif 177 /* socket 0 */ 178 ph = kmem_alloc(sizeof(*ph), KM_SLEEP); 179 sc->sc_ph[0] = ph; 180 ph->ph_sc = sc; 181 ph->ph_socket = 0; 182 ph->ph_port = PORT_F; 183 ph->ph_cd[0] = SOCKET0_MCCD1; 184 ph->ph_cd[1] = SOCKET0_MCCD2; 185 ph->ph_vs[0] = SOCKET0_VS1; 186 ph->ph_vs[1] = SOCKET0_VS2; 187 ph->ph_ireq = SOCKET0_IREQ; 188 ph->ph_space[IO].reg = EP93XX_PCMCIA0_IO; 189 ph->ph_space[IO].base = EP93XX_PCMCIA0_HWBASE + EP93XX_PCMCIA_IO; 190 ph->ph_space[IO].size = EP93XX_PCMCIA_IO_SIZE; 191 ph->ph_space[COMMON].reg = EP93XX_PCMCIA0_Common; 192 ph->ph_space[COMMON].base = EP93XX_PCMCIA0_HWBASE 193 + EP93XX_PCMCIA_COMMON; 194 ph->ph_space[COMMON].size = EP93XX_PCMCIA_COMMON_SIZE; 195 ph->ph_space[ATTRIBUTE].reg = EP93XX_PCMCIA0_Attribute; 196 ph->ph_space[ATTRIBUTE].base = EP93XX_PCMCIA0_HWBASE 197 + EP93XX_PCMCIA_ATTRIBUTE; 198 ph->ph_space[ATTRIBUTE].size = EP93XX_PCMCIA_ATTRIBUTE_SIZE; 199 eppcic_attach_socket(ph); 200 201 reg = EP93XX_PCMCIA_WEN | (pcic->socket_type)(sc, 0); 202 bus_space_write_4(sc->sc_iot, sc->sc_ioh, EP93XX_PCMCIA_Ctrl, 203 EP93XX_PCMCIA_RST | reg); 204 delay(10); 205 bus_space_write_4(sc->sc_iot, sc->sc_ioh, EP93XX_PCMCIA_Ctrl, reg); 206 delay(500); 207 208 for (i = 0; i < EP93XX_PCMCIA_NSOCKET; i++) 209 eppcic_config_socket(sc->sc_ph[i]); 210 #if NEPLED > 0 211 epled_green_off(); 212 #endif 213 } 214 215 static void 216 eppcic_attach_socket(struct eppcic_handle *ph) 217 { 218 struct eppcic_softc *sc = ph->ph_sc; 219 220 ph->ph_width = 16; 221 ph->ph_vcc = 3; 222 ph->ph_event_thread = NULL; 223 ph->ph_run = 0; 224 ph->ph_ih_func = NULL; 225 ph->ph_ih_arg = NULL; 226 epgpio_in(sc->sc_gpio, ph->ph_port, ph->ph_cd[0]); 227 epgpio_in(sc->sc_gpio, ph->ph_port, ph->ph_cd[1]); 228 epgpio_in(sc->sc_gpio, ph->ph_port, ph->ph_vs[0]); 229 epgpio_in(sc->sc_gpio, ph->ph_port, ph->ph_vs[1]); 230 ph->ph_status[0] = epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_cd[0]); 231 ph->ph_status[1] = epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_cd[1]); 232 } 233 234 static void 235 eppcic_config_socket(struct eppcic_handle *ph) 236 { 237 struct eppcic_softc *sc = ph->ph_sc; 238 eppcic_chipset_tag_t pcic = sc->sc_pcic; 239 struct pcmciabus_attach_args paa; 240 int wait; 241 242 paa.paa_busname = "pcmcia"; 243 paa.pct = (pcmcia_chipset_tag_t)&eppcic_functions; 244 paa.pch = (pcmcia_chipset_handle_t)ph; 245 ph->ph_card = config_found(sc->sc_dev, &paa, eppcic_print, CFARGS_NONE); 246 247 epgpio_intr_establish(sc->sc_gpio, ph->ph_port, ph->ph_cd[0], 248 EDGE_TRIGGER | FALLING_EDGE | DEBOUNCE, 249 IPL_TTY, eppcic_intr_carddetect, ph); 250 epgpio_intr_establish(sc->sc_gpio, ph->ph_port, ph->ph_cd[1], 251 EDGE_TRIGGER | RISING_EDGE | DEBOUNCE, 252 IPL_TTY, eppcic_intr_carddetect, ph); 253 wait = (pcic->power_ctl)(sc, ph->ph_socket, POWER_OFF); 254 delay(wait); 255 256 257 ph->ph_status[0] = epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_cd[0]); 258 ph->ph_status[1] = epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_cd[1]); 259 260 DPRINTFN(1, ("eppcic_config_socket: cd1=%d, cd2=%d\n",ph->ph_status[0],ph->ph_status[1])); 261 262 ph->ph_run = 1; 263 kthread_create(PRI_NONE, 0, NULL, eppcic_event_thread, ph, 264 &ph->ph_event_thread, "%s,%d", device_xname(sc->sc_dev), 265 ph->ph_socket); 266 } 267 268 static int 269 eppcic_print(void *arg, const char *pnp) 270 { 271 return (UNCONF); 272 } 273 274 static void 275 eppcic_event_thread(void *arg) 276 { 277 struct eppcic_handle *ph = arg; 278 279 if (!(ph->ph_status[0] | ph->ph_status[1])) 280 pcmcia_card_attach(ph->ph_card); 281 282 for (;;) { 283 tsleep(ph, PWAIT, "CSC wait", 0); 284 if (!ph->ph_run) 285 break; 286 287 DPRINTFN(1, ("eppcic_event_thread: cd1=%d, cd2=%d\n",ph->ph_status[0],ph->ph_status[1])); 288 289 if (!ph->ph_status[0] && !ph->ph_status[1]) 290 pcmcia_card_attach(ph->ph_card); 291 else if (ph->ph_status[0] && ph->ph_status[1]) 292 pcmcia_card_detach(ph->ph_card, DETACH_FORCE); 293 } 294 295 DPRINTFN(1, ("eppcic_event_thread: run=%d\n",ph->ph_run)); 296 ph->ph_event_thread = NULL; 297 kthread_exit(0); 298 } 299 300 void 301 eppcic_shutdown(void *arg) 302 { 303 struct eppcic_handle *ph = arg; 304 305 DPRINTFN(1, ("eppcic_shutdown\n")); 306 ph->ph_run = 0; 307 wakeup(ph); 308 } 309 310 static int 311 eppcic_intr_carddetect(void *arg) 312 { 313 struct eppcic_handle *ph = arg; 314 struct eppcic_softc *sc = ph->ph_sc; 315 int nstatus[2]; 316 317 nstatus[0] = epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_cd[0]); 318 nstatus[1] = epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_cd[1]); 319 320 DPRINTFN(1, ("eppcic_intr: cd1=%#x, cd2=%#x\n",nstatus[0],nstatus[1])); 321 322 if (nstatus[0] != ph->ph_status[0] || nstatus[1] != ph->ph_status[1]) { 323 ph->ph_status[0] = nstatus[0]; 324 ph->ph_status[1] = nstatus[1]; 325 wakeup(ph); 326 } 327 return 0; 328 } 329 330 static int 331 eppcic_mem_alloc(pcmcia_chipset_handle_t pch, bus_size_t size, 332 struct pcmcia_mem_handle *pmh) 333 { 334 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 335 struct eppcic_softc *sc = ph->ph_sc; 336 337 DPRINTFN(1, ("eppcic_mem_alloc: size=%#x\n",(unsigned)size)); 338 339 pmh->memt = sc->sc_iot; 340 return 0; 341 } 342 343 static void 344 eppcic_mem_free(pcmcia_chipset_handle_t pch, struct pcmcia_mem_handle *pmh) 345 { 346 DPRINTFN(1, ("eppcic_mem_free\n")); 347 } 348 349 static int 350 eppcic_mem_map(pcmcia_chipset_handle_t pch, int kind, bus_addr_t addr, 351 bus_size_t size, struct pcmcia_mem_handle *pmh, 352 bus_size_t *offsetp, int *windowp) 353 { 354 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 355 struct eppcic_softc *sc = ph->ph_sc; 356 bus_addr_t pa; 357 int err; 358 359 DPRINTFN(1, ("eppcic_mem_map: kind=%d, addr=%#x, size=%#x\n",kind,(unsigned)addr,(unsigned)size)); 360 361 pa = addr; 362 *offsetp = 0; 363 size = round_page(size); 364 pmh->realsize = size; 365 if (kind & PCMCIA_WIDTH_MEM8) 366 ph->ph_width = 8; 367 else 368 ph->ph_width = 16; 369 switch (kind & ~PCMCIA_WIDTH_MEM_MASK) { 370 case PCMCIA_MEM_ATTR: 371 eppcic_set_pcreg(ph, ATTRIBUTE); 372 pa += ph->ph_space[ATTRIBUTE].base; 373 break; 374 case PCMCIA_MEM_COMMON: 375 eppcic_set_pcreg(ph, COMMON); 376 pa += ph->ph_space[COMMON].base; 377 break; 378 default: 379 return -1; 380 } 381 382 DPRINTFN(1, ("eppcic_mem_map: pa=%#x, *offsetp=%#x, size=%#x\n",(unsigned)pa,(unsigned)addr,(unsigned)size)); 383 384 if (!(err = bus_space_map(sc->sc_iot, pa, size, 0, &pmh->memh))) 385 *windowp = (int)pmh->memh; 386 return err; 387 } 388 389 static void 390 eppcic_mem_unmap(pcmcia_chipset_handle_t pch, int window) 391 { 392 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 393 struct eppcic_softc *sc = ph->ph_sc; 394 395 DPRINTFN(1, ("eppcic_mem_unmap: window=%#x\n",window)); 396 397 bus_space_unmap(sc->sc_iot, (bus_addr_t)window, 0x400); 398 } 399 400 static int 401 eppcic_io_alloc(pcmcia_chipset_handle_t pch, bus_addr_t start, bus_size_t size, 402 bus_size_t align, struct pcmcia_io_handle *pih) 403 { 404 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 405 struct eppcic_softc *sc = ph->ph_sc; 406 bus_addr_t pa; 407 408 DPRINTFN(1, ("eppcic_io_alloc: start=%#x, size=%#x, align=%#x\n",(unsigned)start,(unsigned)size,(unsigned)align)); 409 410 pih->iot = sc->sc_iot; 411 pih->addr = start; 412 pih->size = size; 413 pa = pih->addr + ph->ph_space[IO].base; 414 return bus_space_map(sc->sc_iot, pa, size, 0, &pih->ioh); 415 } 416 417 static void 418 eppcic_io_free(pcmcia_chipset_handle_t pch, struct pcmcia_io_handle *pih) 419 { 420 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 421 struct eppcic_softc *sc = ph->ph_sc; 422 423 DPRINTFN(1, ("eppcic_io_free\n")); 424 425 bus_space_unmap(sc->sc_iot, pih->ioh, pih->size); 426 } 427 428 static int 429 eppcic_io_map(pcmcia_chipset_handle_t pch, int width, bus_addr_t offset, 430 bus_size_t size, struct pcmcia_io_handle *pih, int *windowp) 431 { 432 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 433 434 DPRINTFN(1, ("eppcic_io_map: offset=%#x, size=%#x, width=%d",(unsigned)offset,(unsigned)size,width)); 435 436 switch (width) { 437 case PCMCIA_WIDTH_IO8: 438 DPRINTFN(1, ("(8bit)\n")); 439 ph->ph_width = 8; 440 break; 441 case PCMCIA_WIDTH_IO16: 442 case PCMCIA_WIDTH_AUTO: /* I don't understand how I check it */ 443 DPRINTFN(1, ("(16bit)\n")); 444 ph->ph_width = 16; 445 break; 446 default: 447 DPRINTFN(1, ("(unknown)\n")); 448 return -1; 449 } 450 eppcic_set_pcreg(ph, IO); 451 *windowp = 0; /* unused */ 452 return 0; 453 } 454 455 static void 456 eppcic_io_unmap(pcmcia_chipset_handle_t pch, int window) 457 { 458 DPRINTFN(1, ("eppcic_io_unmap: window=%#x\n",window)); 459 } 460 461 static void * 462 eppcic_intr_establish(pcmcia_chipset_handle_t pch, struct pcmcia_function *pf, 463 int ipl, int (*ih_func)(void *), void *ih_arg) 464 { 465 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 466 struct eppcic_softc *sc = ph->ph_sc; 467 468 DPRINTFN(1, ("eppcic_intr_establish\n")); 469 470 if (ph->ph_ih_func) 471 return 0; 472 473 ph->ph_ih_func = ih_func; 474 ph->ph_ih_arg = ih_arg; 475 return epgpio_intr_establish(sc->sc_gpio, ph->ph_port, ph->ph_ireq, 476 LEVEL_SENSE | LOW_LEVEL, 477 ipl, eppcic_intr_socket, ph); 478 } 479 480 static void 481 eppcic_intr_disestablish(pcmcia_chipset_handle_t pch, void *ih) 482 { 483 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 484 struct eppcic_softc *sc = ph->ph_sc; 485 486 DPRINTFN(1, ("eppcic_intr_disestablish\n")); 487 488 ph->ph_ih_func = NULL; 489 ph->ph_ih_arg = NULL; 490 epgpio_intr_disestablish(sc->sc_gpio, ph->ph_port, ph->ph_ireq); 491 } 492 493 static int 494 eppcic_intr_socket(void *arg) 495 { 496 struct eppcic_handle *ph = arg; 497 int err = 0; 498 499 if (ph->ph_ih_func) { 500 #if NEPLED > 0 501 epled_red_on(); 502 #endif 503 err = (*ph->ph_ih_func)(ph->ph_ih_arg); 504 #if NEPLED > 0 505 epled_red_off(); 506 #endif 507 } 508 return err; 509 } 510 511 512 static void 513 eppcic_socket_enable(pcmcia_chipset_handle_t pch) 514 { 515 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 516 struct eppcic_softc *sc = ph->ph_sc; 517 eppcic_chipset_tag_t pcic = sc->sc_pcic; 518 int wait; 519 520 DPRINTFN(1, ("eppcic_socket_enable\n")); 521 522 wait = (pcic->power_ctl)(sc, ph->ph_socket, POWER_ON); 523 delay(wait); 524 #if NEPLED > 0 525 if (!sc->sc_enable++) 526 epled_green_on(); 527 #endif 528 ph->ph_vcc = eppcic_get_voltage(ph); 529 } 530 531 static void 532 eppcic_socket_disable(pcmcia_chipset_handle_t pch) 533 { 534 struct eppcic_handle *ph = (struct eppcic_handle *)pch; 535 struct eppcic_softc *sc = ph->ph_sc; 536 eppcic_chipset_tag_t pcic = sc->sc_pcic; 537 int wait; 538 539 DPRINTFN(1, ("eppcic_socket_disable\n")); 540 541 wait = (pcic->power_ctl)(sc, ph->ph_socket, POWER_OFF); 542 delay(wait); 543 #if NEPLED > 0 544 if (!--sc->sc_enable) 545 epled_green_off(); 546 #endif 547 } 548 549 static void 550 eppcic_socket_settype(pcmcia_chipset_handle_t pch, int type) 551 { 552 DPRINTFN(1, ("eppcic_socket_settype: type=%d",type)); 553 554 switch (type) { 555 case PCMCIA_IFTYPE_MEMORY: 556 DPRINTFN(1, ("(Memory)\n")); 557 break; 558 case PCMCIA_IFTYPE_IO: 559 DPRINTFN(1, ("(I/O)\n")); 560 break; 561 default: 562 DPRINTFN(1, ("(unknown)\n")); 563 return; 564 } 565 } 566 567 static int 568 eppcic_get_voltage(struct eppcic_handle *ph) 569 { 570 struct eppcic_softc *sc = ph->ph_sc; 571 eppcic_chipset_tag_t pcic = sc->sc_pcic; 572 int cap, vcc = 0; 573 574 cap = (pcic->power_capability)(sc, ph->ph_socket); 575 if (epgpio_read(sc->sc_gpio, ph->ph_port, ph->ph_vs[0])) { 576 if (cap | VCC_5V) 577 vcc = 5; 578 else 579 printf("%s: unsupported Vcc 5 Volts", 580 device_xname(sc->sc_dev)); 581 } else { 582 if (cap | VCC_3V) 583 vcc = 3; 584 else 585 printf("%s: unsupported Vcc 3.3 Volts", 586 device_xname(sc->sc_dev)); 587 } 588 DPRINTFN(1, ("eppcic_get_voltage: vs1=%d, vs2=%d (%dV)\n",epgpio_read_bit(sc->sc_gpio, ph->ph_port, ph->ph_vs[0]),epgpio_read_bit(sc->sc_gpio, ph->ph_port, ph->ph_vs[1]),vcc)); 589 return vcc; 590 } 591 592 #define EXTRA_DELAY 40 593 594 static void 595 eppcic_set_pcreg(struct eppcic_handle *ph, int kind) 596 { 597 struct eppcic_softc *sc = ph->ph_sc; 598 int atiming, htiming, ptiming; 599 int period = 1000000000 / sc->sc_hclk; 600 int width; 601 602 switch (ph->ph_width) { 603 case 8: 604 width = 0; 605 break; 606 case 16: 607 width = EP93XX_PCMCIA_WIDTH_16; 608 break; 609 default: 610 return; 611 } 612 switch (kind) { 613 case IO: 614 atiming = 165; htiming = 20; ptiming = 70; 615 break; 616 case COMMON: 617 #if linux_timing!=hamajima20050816 618 switch (ph->ph_vcc) { 619 case 3: 620 atiming = 465; htiming = 35; ptiming = 100; 621 break; 622 case 5: 623 atiming = 200; htiming = 20; ptiming = 30; 624 break; 625 default: 626 return; 627 } 628 break; 629 #endif 630 case ATTRIBUTE: 631 switch (ph->ph_vcc) { 632 case 3: 633 #if linux_timing!=hamajima20050816 634 atiming = 465; htiming = 35; ptiming = 100; 635 #else 636 atiming = 600; htiming = 35; ptiming = 100; 637 #endif 638 break; 639 case 5: 640 #if linux_timing!=hamajima20050816 641 atiming = 250; htiming = 20; ptiming = 30; 642 #else 643 atiming = 300; htiming = 20; ptiming = 30; 644 #endif 645 break; 646 default: 647 return; 648 } 649 break; 650 default: 651 return; 652 } 653 654 #if linux_timing!=hamajima20050816 655 period = 1000000000 / 50000000; 656 width = EP93XX_PCMCIA_WIDTH_16; 657 #endif 658 659 atiming = (atiming + EXTRA_DELAY) / period; 660 if (atiming>0xff) 661 atiming = 0xff; 662 htiming = ((htiming + EXTRA_DELAY) / period) + 1; 663 if (htiming>0xf) 664 htiming = 0xf; 665 ptiming = (ptiming + EXTRA_DELAY) / period; 666 if (ptiming>0xff) 667 ptiming = 0xff; 668 669 DPRINTFN(1, ("eppcic_set_pcreg: width=%d, access=%d, hold=%d, pre-charge=%d\n",ph->ph_width,atiming,htiming,ptiming)); 670 671 bus_space_write_4(sc->sc_iot, sc->sc_ioh, ph->ph_space[kind].reg, 672 width 673 | (atiming<<EP93XX_PCMCIA_ACCESS_SHIFT) 674 | (htiming<<EP93XX_PCMCIA_HOLD_SHIFT) 675 | (ptiming<<EP93XX_PCMCIA_PRECHARGE_SHIFT)); 676 tsleep(ph->ph_space, PWAIT, "eppcic_set_pcreg", hz / 4); 677 } 678
Indexes created Fri Sep 26 20:09:58 GMT 2025