| 1 | /* $NetBSD: sdmmc.c,v 1.33 2015/12/22 09:55:38 mlelstv Exp $ */ |
| 2 | /* $OpenBSD: sdmmc.c,v 1.18 2009/01/09 10:58:38 jsg Exp $ */ |
| 3 | |
| 4 | /* |
| 5 | * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> |
| 6 | * |
| 7 | * Permission to use, copy, modify, and distribute this software for any |
| 8 | * purpose with or without fee is hereby granted, provided that the above |
| 9 | * copyright notice and this permission notice appear in all copies. |
| 10 | * |
| 11 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 12 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 13 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 14 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 15 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 16 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 17 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 18 | */ |
| 19 | |
| 20 | /*- |
| 21 | * Copyright (C) 2007, 2008, 2009 NONAKA Kimihiro <nonaka@netbsd.org> |
| 22 | * All rights reserved. |
| 23 | * |
| 24 | * Redistribution and use in source and binary forms, with or without |
| 25 | * modification, are permitted provided that the following conditions |
| 26 | * are met: |
| 27 | * 1. Redistributions of source code must retain the above copyright |
| 28 | * notice, this list of conditions and the following disclaimer. |
| 29 | * 2. Redistributions in binary form must reproduce the above copyright |
| 30 | * notice, this list of conditions and the following disclaimer in the |
| 31 | * documentation and/or other materials provided with the distribution. |
| 32 | * |
| 33 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 34 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 35 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 36 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 37 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 38 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 39 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 40 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 41 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 42 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 43 | */ |
| 44 | |
| 45 | /* |
| 46 | * Host controller independent SD/MMC bus driver based on information |
| 47 | * from SanDisk SD Card Product Manual Revision 2.2 (SanDisk), SDIO |
| 48 | * Simple Specification Version 1.0 (SDIO) and the Linux "mmc" driver. |
| 49 | */ |
| 50 | |
| 51 | #include <sys/cdefs.h> |
| 52 | __KERNEL_RCSID(0, "$NetBSD: sdmmc.c,v 1.33 2015/12/22 09:55:38 mlelstv Exp $" ); |
| 53 | |
| 54 | #ifdef _KERNEL_OPT |
| 55 | #include "opt_sdmmc.h" |
| 56 | #endif |
| 57 | |
| 58 | #include <sys/param.h> |
| 59 | #include <sys/device.h> |
| 60 | #include <sys/kernel.h> |
| 61 | #include <sys/kthread.h> |
| 62 | #include <sys/malloc.h> |
| 63 | #include <sys/proc.h> |
| 64 | #include <sys/systm.h> |
| 65 | #include <sys/callout.h> |
| 66 | |
| 67 | #include <machine/vmparam.h> |
| 68 | |
| 69 | #include <dev/sdmmc/sdmmc_ioreg.h> |
| 70 | #include <dev/sdmmc/sdmmcchip.h> |
| 71 | #include <dev/sdmmc/sdmmcreg.h> |
| 72 | #include <dev/sdmmc/sdmmcvar.h> |
| 73 | |
| 74 | #ifdef SDMMC_DEBUG |
| 75 | int sdmmcdebug = 0; |
| 76 | static void sdmmc_dump_command(struct sdmmc_softc *, struct sdmmc_command *); |
| 77 | #define DPRINTF(n,s) do { if ((n) <= sdmmcdebug) printf s; } while (0) |
| 78 | #else |
| 79 | #define DPRINTF(n,s) do {} while (0) |
| 80 | #endif |
| 81 | |
| 82 | #define DEVNAME(sc) SDMMCDEVNAME(sc) |
| 83 | |
| 84 | static int sdmmc_match(device_t, cfdata_t, void *); |
| 85 | static void sdmmc_attach(device_t, device_t, void *); |
| 86 | static int sdmmc_detach(device_t, int); |
| 87 | |
| 88 | CFATTACH_DECL_NEW(sdmmc, sizeof(struct sdmmc_softc), |
| 89 | sdmmc_match, sdmmc_attach, sdmmc_detach, NULL); |
| 90 | |
| 91 | static void sdmmc_doattach(device_t); |
| 92 | static void sdmmc_task_thread(void *); |
| 93 | static void sdmmc_discover_task(void *); |
| 94 | static void sdmmc_polling_card(void *); |
| 95 | static void sdmmc_card_attach(struct sdmmc_softc *); |
| 96 | static void sdmmc_card_detach(struct sdmmc_softc *, int); |
| 97 | static int sdmmc_print(void *, const char *); |
| 98 | static int sdmmc_enable(struct sdmmc_softc *); |
| 99 | static void sdmmc_disable(struct sdmmc_softc *); |
| 100 | static int sdmmc_scan(struct sdmmc_softc *); |
| 101 | static int sdmmc_init(struct sdmmc_softc *); |
| 102 | |
| 103 | static int |
| 104 | sdmmc_match(device_t parent, cfdata_t cf, void *aux) |
| 105 | { |
| 106 | struct sdmmcbus_attach_args *saa = (struct sdmmcbus_attach_args *)aux; |
| 107 | |
| 108 | if (strcmp(saa->saa_busname, cf->cf_name) == 0) |
| 109 | return 1; |
| 110 | return 0; |
| 111 | } |
| 112 | |
| 113 | static void |
| 114 | sdmmc_attach(device_t parent, device_t self, void *aux) |
| 115 | { |
| 116 | struct sdmmc_softc *sc = device_private(self); |
| 117 | struct sdmmcbus_attach_args *saa = (struct sdmmcbus_attach_args *)aux; |
| 118 | int error; |
| 119 | |
| 120 | aprint_normal("\n" ); |
| 121 | aprint_naive("\n" ); |
| 122 | |
| 123 | sc->sc_dev = self; |
| 124 | sc->sc_sct = saa->saa_sct; |
| 125 | sc->sc_spi_sct = saa->saa_spi_sct; |
| 126 | sc->sc_sch = saa->saa_sch; |
| 127 | sc->sc_dmat = saa->saa_dmat; |
| 128 | sc->sc_clkmin = saa->saa_clkmin; |
| 129 | sc->sc_clkmax = saa->saa_clkmax; |
| 130 | sc->sc_busclk = sc->sc_clkmax; |
| 131 | sc->sc_buswidth = 1; |
| 132 | sc->sc_caps = saa->saa_caps; |
| 133 | |
| 134 | if (ISSET(sc->sc_caps, SMC_CAPS_DMA)) { |
| 135 | error = bus_dmamap_create(sc->sc_dmat, MAXPHYS, SDMMC_MAXNSEGS, |
| 136 | MAXPHYS, 0, BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW, &sc->sc_dmap); |
| 137 | if (error) { |
| 138 | aprint_error_dev(sc->sc_dev, |
| 139 | "couldn't create dma map. (error=%d)\n" , error); |
| 140 | return; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | SIMPLEQ_INIT(&sc->sf_head); |
| 145 | TAILQ_INIT(&sc->sc_tskq); |
| 146 | TAILQ_INIT(&sc->sc_intrq); |
| 147 | |
| 148 | sdmmc_init_task(&sc->sc_discover_task, sdmmc_discover_task, sc); |
| 149 | sdmmc_init_task(&sc->sc_intr_task, sdmmc_intr_task, sc); |
| 150 | |
| 151 | mutex_init(&sc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); |
| 152 | mutex_init(&sc->sc_tskq_mtx, MUTEX_DEFAULT, IPL_SDMMC); |
| 153 | mutex_init(&sc->sc_discover_task_mtx, MUTEX_DEFAULT, IPL_SDMMC); |
| 154 | mutex_init(&sc->sc_intr_task_mtx, MUTEX_DEFAULT, IPL_SDMMC); |
| 155 | cv_init(&sc->sc_tskq_cv, "mmctaskq" ); |
| 156 | |
| 157 | evcnt_attach_dynamic(&sc->sc_ev_xfer, EVCNT_TYPE_MISC, NULL, |
| 158 | device_xname(self), "xfer" ); |
| 159 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[0], EVCNT_TYPE_MISC, |
| 160 | &sc->sc_ev_xfer, device_xname(self), "xfer 512" ); |
| 161 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[1], EVCNT_TYPE_MISC, |
| 162 | &sc->sc_ev_xfer, device_xname(self), "xfer 1024" ); |
| 163 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[2], EVCNT_TYPE_MISC, |
| 164 | &sc->sc_ev_xfer, device_xname(self), "xfer 2048" ); |
| 165 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[3], EVCNT_TYPE_MISC, |
| 166 | &sc->sc_ev_xfer, device_xname(self), "xfer 4096" ); |
| 167 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[4], EVCNT_TYPE_MISC, |
| 168 | &sc->sc_ev_xfer, device_xname(self), "xfer 8192" ); |
| 169 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[5], EVCNT_TYPE_MISC, |
| 170 | &sc->sc_ev_xfer, device_xname(self), "xfer 16384" ); |
| 171 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[6], EVCNT_TYPE_MISC, |
| 172 | &sc->sc_ev_xfer, device_xname(self), "xfer 32768" ); |
| 173 | evcnt_attach_dynamic(&sc->sc_ev_xfer_aligned[7], EVCNT_TYPE_MISC, |
| 174 | &sc->sc_ev_xfer, device_xname(self), "xfer 65536" ); |
| 175 | evcnt_attach_dynamic(&sc->sc_ev_xfer_unaligned, EVCNT_TYPE_MISC, |
| 176 | &sc->sc_ev_xfer, device_xname(self), "xfer unaligned" ); |
| 177 | evcnt_attach_dynamic(&sc->sc_ev_xfer_error, EVCNT_TYPE_MISC, |
| 178 | &sc->sc_ev_xfer, device_xname(self), "xfer error" ); |
| 179 | |
| 180 | if (ISSET(sc->sc_caps, SMC_CAPS_POLL_CARD_DET)) { |
| 181 | callout_init(&sc->sc_card_detect_ch, 0); |
| 182 | callout_reset(&sc->sc_card_detect_ch, hz, |
| 183 | sdmmc_polling_card, sc); |
| 184 | } |
| 185 | |
| 186 | if (!pmf_device_register(self, NULL, NULL)) { |
| 187 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 188 | } |
| 189 | |
| 190 | SET(sc->sc_flags, SMF_INITED); |
| 191 | |
| 192 | /* |
| 193 | * Create the event thread that will attach and detach cards |
| 194 | * and perform other lengthy operations. |
| 195 | */ |
| 196 | config_pending_incr(self); |
| 197 | config_interrupts(self, sdmmc_doattach); |
| 198 | } |
| 199 | |
| 200 | static int |
| 201 | sdmmc_detach(device_t self, int flags) |
| 202 | { |
| 203 | struct sdmmc_softc *sc = device_private(self); |
| 204 | int error, i; |
| 205 | |
| 206 | mutex_enter(&sc->sc_tskq_mtx); |
| 207 | sc->sc_dying = 1; |
| 208 | cv_signal(&sc->sc_tskq_cv); |
| 209 | while (sc->sc_tskq_lwp != NULL) |
| 210 | cv_wait(&sc->sc_tskq_cv, &sc->sc_tskq_mtx); |
| 211 | mutex_exit(&sc->sc_tskq_mtx); |
| 212 | |
| 213 | pmf_device_deregister(self); |
| 214 | |
| 215 | error = config_detach_children(self, flags); |
| 216 | if (error) |
| 217 | return error; |
| 218 | |
| 219 | if (ISSET(sc->sc_caps, SMC_CAPS_DMA)) { |
| 220 | bus_dmamap_unload(sc->sc_dmat, sc->sc_dmap); |
| 221 | bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmap); |
| 222 | } |
| 223 | |
| 224 | if (ISSET(sc->sc_caps, SMC_CAPS_POLL_CARD_DET)) { |
| 225 | callout_halt(&sc->sc_card_detect_ch, NULL); |
| 226 | callout_destroy(&sc->sc_card_detect_ch); |
| 227 | } |
| 228 | |
| 229 | cv_destroy(&sc->sc_tskq_cv); |
| 230 | mutex_destroy(&sc->sc_intr_task_mtx); |
| 231 | mutex_destroy(&sc->sc_discover_task_mtx); |
| 232 | mutex_destroy(&sc->sc_tskq_mtx); |
| 233 | mutex_destroy(&sc->sc_mtx); |
| 234 | |
| 235 | evcnt_detach(&sc->sc_ev_xfer_error); |
| 236 | evcnt_detach(&sc->sc_ev_xfer_unaligned); |
| 237 | for (i = 0; i < __arraycount(sc->sc_ev_xfer_aligned); i++) |
| 238 | evcnt_detach(&sc->sc_ev_xfer_aligned[i]); |
| 239 | evcnt_detach(&sc->sc_ev_xfer); |
| 240 | |
| 241 | return 0; |
| 242 | } |
| 243 | |
| 244 | static void |
| 245 | sdmmc_doattach(device_t dev) |
| 246 | { |
| 247 | struct sdmmc_softc *sc = device_private(dev); |
| 248 | |
| 249 | if (kthread_create(PRI_BIO, 0, NULL, |
| 250 | sdmmc_task_thread, sc, &sc->sc_tskq_lwp, "%s" , device_xname(dev))) { |
| 251 | aprint_error_dev(dev, "couldn't create task thread\n" ); |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | void |
| 256 | sdmmc_add_task(struct sdmmc_softc *sc, struct sdmmc_task *task) |
| 257 | { |
| 258 | |
| 259 | mutex_enter(&sc->sc_tskq_mtx); |
| 260 | task->onqueue = 1; |
| 261 | task->sc = sc; |
| 262 | TAILQ_INSERT_TAIL(&sc->sc_tskq, task, next); |
| 263 | cv_broadcast(&sc->sc_tskq_cv); |
| 264 | mutex_exit(&sc->sc_tskq_mtx); |
| 265 | } |
| 266 | |
| 267 | static inline void |
| 268 | sdmmc_del_task1(struct sdmmc_softc *sc, struct sdmmc_task *task) |
| 269 | { |
| 270 | |
| 271 | TAILQ_REMOVE(&sc->sc_tskq, task, next); |
| 272 | task->sc = NULL; |
| 273 | task->onqueue = 0; |
| 274 | } |
| 275 | |
| 276 | void |
| 277 | sdmmc_del_task(struct sdmmc_task *task) |
| 278 | { |
| 279 | struct sdmmc_softc *sc = (struct sdmmc_softc *)task->sc; |
| 280 | |
| 281 | if (sc != NULL) { |
| 282 | mutex_enter(&sc->sc_tskq_mtx); |
| 283 | sdmmc_del_task1(sc, task); |
| 284 | mutex_exit(&sc->sc_tskq_mtx); |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | static void |
| 289 | sdmmc_task_thread(void *arg) |
| 290 | { |
| 291 | struct sdmmc_softc *sc = (struct sdmmc_softc *)arg; |
| 292 | struct sdmmc_task *task; |
| 293 | |
| 294 | sdmmc_discover_task(sc); |
| 295 | config_pending_decr(sc->sc_dev); |
| 296 | |
| 297 | mutex_enter(&sc->sc_tskq_mtx); |
| 298 | for (;;) { |
| 299 | task = TAILQ_FIRST(&sc->sc_tskq); |
| 300 | if (task != NULL) { |
| 301 | sdmmc_del_task1(sc, task); |
| 302 | mutex_exit(&sc->sc_tskq_mtx); |
| 303 | (*task->func)(task->arg); |
| 304 | mutex_enter(&sc->sc_tskq_mtx); |
| 305 | } else { |
| 306 | /* Check for the exit condition. */ |
| 307 | if (sc->sc_dying) |
| 308 | break; |
| 309 | cv_wait(&sc->sc_tskq_cv, &sc->sc_tskq_mtx); |
| 310 | } |
| 311 | } |
| 312 | /* time to die. */ |
| 313 | sc->sc_dying = 0; |
| 314 | if (ISSET(sc->sc_flags, SMF_CARD_PRESENT)) { |
| 315 | /* |
| 316 | * sdmmc_card_detach() may issue commands, |
| 317 | * so temporarily drop the interrupt-blocking lock. |
| 318 | */ |
| 319 | mutex_exit(&sc->sc_tskq_mtx); |
| 320 | sdmmc_card_detach(sc, DETACH_FORCE); |
| 321 | mutex_enter(&sc->sc_tskq_mtx); |
| 322 | } |
| 323 | sc->sc_tskq_lwp = NULL; |
| 324 | cv_broadcast(&sc->sc_tskq_cv); |
| 325 | mutex_exit(&sc->sc_tskq_mtx); |
| 326 | kthread_exit(0); |
| 327 | } |
| 328 | |
| 329 | void |
| 330 | sdmmc_needs_discover(device_t dev) |
| 331 | { |
| 332 | struct sdmmc_softc *sc = device_private(dev); |
| 333 | |
| 334 | if (!ISSET(sc->sc_flags, SMF_INITED)) |
| 335 | return; |
| 336 | |
| 337 | mutex_enter(&sc->sc_discover_task_mtx); |
| 338 | if (!sdmmc_task_pending(&sc->sc_discover_task)) |
| 339 | sdmmc_add_task(sc, &sc->sc_discover_task); |
| 340 | mutex_exit(&sc->sc_discover_task_mtx); |
| 341 | } |
| 342 | |
| 343 | static void |
| 344 | sdmmc_discover_task(void *arg) |
| 345 | { |
| 346 | struct sdmmc_softc *sc = (struct sdmmc_softc *)arg; |
| 347 | int card_detect, card_present; |
| 348 | |
| 349 | mutex_enter(&sc->sc_discover_task_mtx); |
| 350 | card_detect = sdmmc_chip_card_detect(sc->sc_sct, sc->sc_sch); |
| 351 | card_present = ISSET(sc->sc_flags, SMF_CARD_PRESENT); |
| 352 | if (card_detect) |
| 353 | SET(sc->sc_flags, SMF_CARD_PRESENT); |
| 354 | else |
| 355 | CLR(sc->sc_flags, SMF_CARD_PRESENT); |
| 356 | mutex_exit(&sc->sc_discover_task_mtx); |
| 357 | |
| 358 | if (card_detect) { |
| 359 | if (!card_present) { |
| 360 | sdmmc_card_attach(sc); |
| 361 | mutex_enter(&sc->sc_discover_task_mtx); |
| 362 | if (!ISSET(sc->sc_flags, SMF_CARD_ATTACHED)) |
| 363 | CLR(sc->sc_flags, SMF_CARD_PRESENT); |
| 364 | mutex_exit(&sc->sc_discover_task_mtx); |
| 365 | } |
| 366 | } else { |
| 367 | if (card_present) |
| 368 | sdmmc_card_detach(sc, DETACH_FORCE); |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | static void |
| 373 | sdmmc_polling_card(void *arg) |
| 374 | { |
| 375 | struct sdmmc_softc *sc = (struct sdmmc_softc *)arg; |
| 376 | int card_detect, card_present; |
| 377 | |
| 378 | mutex_enter(&sc->sc_discover_task_mtx); |
| 379 | card_detect = sdmmc_chip_card_detect(sc->sc_sct, sc->sc_sch); |
| 380 | card_present = ISSET(sc->sc_flags, SMF_CARD_PRESENT); |
| 381 | mutex_exit(&sc->sc_discover_task_mtx); |
| 382 | |
| 383 | if (card_detect != card_present) |
| 384 | sdmmc_needs_discover(sc->sc_dev); |
| 385 | |
| 386 | callout_schedule(&sc->sc_card_detect_ch, hz); |
| 387 | } |
| 388 | |
| 389 | /* |
| 390 | * Called from process context when a card is present. |
| 391 | */ |
| 392 | static void |
| 393 | sdmmc_card_attach(struct sdmmc_softc *sc) |
| 394 | { |
| 395 | struct sdmmc_function *sf; |
| 396 | struct sdmmc_attach_args saa; |
| 397 | int error; |
| 398 | |
| 399 | DPRINTF(1,("%s: attach card\n" , DEVNAME(sc))); |
| 400 | |
| 401 | CLR(sc->sc_flags, SMF_CARD_ATTACHED); |
| 402 | |
| 403 | /* |
| 404 | * Power up the card (or card stack). |
| 405 | */ |
| 406 | error = sdmmc_enable(sc); |
| 407 | if (error) { |
| 408 | if (!ISSET(sc->sc_caps, SMC_CAPS_POLL_CARD_DET)) { |
| 409 | aprint_error_dev(sc->sc_dev, "couldn't enable card: %d\n" , error); |
| 410 | } |
| 411 | goto err; |
| 412 | } |
| 413 | |
| 414 | /* |
| 415 | * Scan for I/O functions and memory cards on the bus, |
| 416 | * allocating a sdmmc_function structure for each. |
| 417 | */ |
| 418 | error = sdmmc_scan(sc); |
| 419 | if (error) { |
| 420 | aprint_error_dev(sc->sc_dev, "no functions\n" ); |
| 421 | goto err; |
| 422 | } |
| 423 | |
| 424 | /* |
| 425 | * Initialize the I/O functions and memory cards. |
| 426 | */ |
| 427 | error = sdmmc_init(sc); |
| 428 | if (error) { |
| 429 | aprint_error_dev(sc->sc_dev, "init failed\n" ); |
| 430 | goto err; |
| 431 | } |
| 432 | |
| 433 | SIMPLEQ_FOREACH(sf, &sc->sf_head, sf_list) { |
| 434 | if (ISSET(sc->sc_flags, SMF_IO_MODE) && sf->number < 1) |
| 435 | continue; |
| 436 | |
| 437 | memset(&saa, 0, sizeof saa); |
| 438 | saa.manufacturer = sf->cis.manufacturer; |
| 439 | saa.product = sf->cis.product; |
| 440 | saa.interface = sf->interface; |
| 441 | saa.sf = sf; |
| 442 | |
| 443 | sf->child = |
| 444 | config_found_ia(sc->sc_dev, "sdmmc" , &saa, sdmmc_print); |
| 445 | } |
| 446 | |
| 447 | SET(sc->sc_flags, SMF_CARD_ATTACHED); |
| 448 | return; |
| 449 | |
| 450 | err: |
| 451 | sdmmc_card_detach(sc, DETACH_FORCE); |
| 452 | } |
| 453 | |
| 454 | /* |
| 455 | * Called from process context with DETACH_* flags from <sys/device.h> |
| 456 | * when cards are gone. |
| 457 | */ |
| 458 | static void |
| 459 | sdmmc_card_detach(struct sdmmc_softc *sc, int flags) |
| 460 | { |
| 461 | struct sdmmc_function *sf, *sfnext; |
| 462 | |
| 463 | DPRINTF(1,("%s: detach card\n" , DEVNAME(sc))); |
| 464 | |
| 465 | if (ISSET(sc->sc_flags, SMF_CARD_ATTACHED)) { |
| 466 | SIMPLEQ_FOREACH(sf, &sc->sf_head, sf_list) { |
| 467 | if (sf->child != NULL) { |
| 468 | config_detach(sf->child, DETACH_FORCE); |
| 469 | sf->child = NULL; |
| 470 | } |
| 471 | } |
| 472 | |
| 473 | KASSERT(TAILQ_EMPTY(&sc->sc_intrq)); |
| 474 | |
| 475 | CLR(sc->sc_flags, SMF_CARD_ATTACHED); |
| 476 | } |
| 477 | |
| 478 | /* Power down. */ |
| 479 | sdmmc_disable(sc); |
| 480 | |
| 481 | /* Free all sdmmc_function structures. */ |
| 482 | for (sf = SIMPLEQ_FIRST(&sc->sf_head); sf != NULL; sf = sfnext) { |
| 483 | sfnext = SIMPLEQ_NEXT(sf, sf_list); |
| 484 | sdmmc_function_free(sf); |
| 485 | } |
| 486 | SIMPLEQ_INIT(&sc->sf_head); |
| 487 | sc->sc_function_count = 0; |
| 488 | sc->sc_fn0 = NULL; |
| 489 | } |
| 490 | |
| 491 | static int |
| 492 | sdmmc_print(void *aux, const char *pnp) |
| 493 | { |
| 494 | struct sdmmc_attach_args *sa = aux; |
| 495 | struct sdmmc_function *sf = sa->sf; |
| 496 | struct sdmmc_cis *cis = &sf->sc->sc_fn0->cis; |
| 497 | int i, x; |
| 498 | |
| 499 | if (pnp) { |
| 500 | if (sf->number == 0) |
| 501 | return QUIET; |
| 502 | |
| 503 | for (i = 0; i < 4 && cis->cis1_info[i]; i++) |
| 504 | printf("%s%s" , i ? ", " : "\"" , cis->cis1_info[i]); |
| 505 | if (i != 0) |
| 506 | printf("\"" ); |
| 507 | |
| 508 | if ((cis->manufacturer != SDMMC_VENDOR_INVALID && |
| 509 | cis->product != SDMMC_PRODUCT_INVALID) || |
| 510 | sa->interface != SD_IO_SFIC_NO_STANDARD) { |
| 511 | x = !!(cis->manufacturer != SDMMC_VENDOR_INVALID); |
| 512 | x += !!(cis->product != SDMMC_PRODUCT_INVALID); |
| 513 | x += !!(sa->interface != SD_IO_SFIC_NO_STANDARD); |
| 514 | printf("%s(" , i ? " " : "" ); |
| 515 | if (cis->manufacturer != SDMMC_VENDOR_INVALID) |
| 516 | printf("manufacturer 0x%x%s" , |
| 517 | cis->manufacturer, (--x == 0) ? "" : ", " ); |
| 518 | if (cis->product != SDMMC_PRODUCT_INVALID) |
| 519 | printf("product 0x%x%s" , |
| 520 | cis->product, (--x == 0) ? "" : ", " ); |
| 521 | if (sa->interface != SD_IO_SFIC_NO_STANDARD) |
| 522 | printf("standard function interface code 0x%x" , |
| 523 | sf->interface); |
| 524 | printf(")" ); |
| 525 | } |
| 526 | printf("%sat %s" , i ? " " : "" , pnp); |
| 527 | } |
| 528 | if (sf->number > 0) |
| 529 | printf(" function %d" , sf->number); |
| 530 | |
| 531 | if (!pnp) { |
| 532 | for (i = 0; i < 3 && cis->cis1_info[i]; i++) |
| 533 | printf("%s%s" , i ? ", " : " \"" , cis->cis1_info[i]); |
| 534 | if (i != 0) |
| 535 | printf("\"" ); |
| 536 | } |
| 537 | return UNCONF; |
| 538 | } |
| 539 | |
| 540 | static int |
| 541 | sdmmc_enable(struct sdmmc_softc *sc) |
| 542 | { |
| 543 | int error; |
| 544 | |
| 545 | /* |
| 546 | * Calculate the equivalent of the card OCR from the host |
| 547 | * capabilities and select the maximum supported bus voltage. |
| 548 | */ |
| 549 | error = sdmmc_chip_bus_power(sc->sc_sct, sc->sc_sch, |
| 550 | sdmmc_chip_host_ocr(sc->sc_sct, sc->sc_sch)); |
| 551 | if (error) { |
| 552 | aprint_error_dev(sc->sc_dev, "couldn't supply bus power\n" ); |
| 553 | goto out; |
| 554 | } |
| 555 | |
| 556 | /* |
| 557 | * Select the minimum clock frequency. |
| 558 | */ |
| 559 | error = sdmmc_chip_bus_clock(sc->sc_sct, sc->sc_sch, SDMMC_SDCLK_400K, |
| 560 | false); |
| 561 | if (error) { |
| 562 | aprint_error_dev(sc->sc_dev, "couldn't supply clock\n" ); |
| 563 | goto out; |
| 564 | } |
| 565 | |
| 566 | /* XXX wait for card to power up */ |
| 567 | sdmmc_delay(100000); |
| 568 | |
| 569 | if (!ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 570 | /* Initialize SD I/O card function(s). */ |
| 571 | error = sdmmc_io_enable(sc); |
| 572 | if (error) { |
| 573 | DPRINTF(1, ("%s: sdmmc_io_enable failed %d\n" , DEVNAME(sc), error)); |
| 574 | goto out; |
| 575 | } |
| 576 | } |
| 577 | |
| 578 | /* Initialize SD/MMC memory card(s). */ |
| 579 | if (ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE) || |
| 580 | ISSET(sc->sc_flags, SMF_MEM_MODE)) { |
| 581 | error = sdmmc_mem_enable(sc); |
| 582 | if (error) { |
| 583 | DPRINTF(1, ("%s: sdmmc_mem_enable failed %d\n" , DEVNAME(sc), error)); |
| 584 | goto out; |
| 585 | } |
| 586 | } |
| 587 | |
| 588 | out: |
| 589 | if (error) |
| 590 | sdmmc_disable(sc); |
| 591 | return error; |
| 592 | } |
| 593 | |
| 594 | static void |
| 595 | sdmmc_disable(struct sdmmc_softc *sc) |
| 596 | { |
| 597 | /* XXX complete commands if card is still present. */ |
| 598 | |
| 599 | if (!ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 600 | /* Make sure no card is still selected. */ |
| 601 | (void)sdmmc_select_card(sc, NULL); |
| 602 | } |
| 603 | |
| 604 | /* Turn off bus power and clock. */ |
| 605 | (void)sdmmc_chip_bus_width(sc->sc_sct, sc->sc_sch, 1); |
| 606 | (void)sdmmc_chip_bus_clock(sc->sc_sct, sc->sc_sch, SDMMC_SDCLK_OFF, |
| 607 | false); |
| 608 | (void)sdmmc_chip_bus_power(sc->sc_sct, sc->sc_sch, 0); |
| 609 | sc->sc_busclk = sc->sc_clkmax; |
| 610 | } |
| 611 | |
| 612 | /* |
| 613 | * Set the lowest bus voltage supported by the card and the host. |
| 614 | */ |
| 615 | int |
| 616 | sdmmc_set_bus_power(struct sdmmc_softc *sc, uint32_t host_ocr, |
| 617 | uint32_t card_ocr) |
| 618 | { |
| 619 | uint32_t bit; |
| 620 | |
| 621 | /* Mask off unsupported voltage levels and select the lowest. */ |
| 622 | DPRINTF(1,("%s: host_ocr=%x " , DEVNAME(sc), host_ocr)); |
| 623 | host_ocr &= card_ocr; |
| 624 | for (bit = 4; bit < 23; bit++) { |
| 625 | if (ISSET(host_ocr, (1 << bit))) { |
| 626 | host_ocr &= (3 << bit); |
| 627 | break; |
| 628 | } |
| 629 | } |
| 630 | DPRINTF(1,("card_ocr=%x new_ocr=%x\n" , card_ocr, host_ocr)); |
| 631 | |
| 632 | if (host_ocr == 0 || |
| 633 | sdmmc_chip_bus_power(sc->sc_sct, sc->sc_sch, host_ocr) != 0) |
| 634 | return 1; |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | struct sdmmc_function * |
| 639 | sdmmc_function_alloc(struct sdmmc_softc *sc) |
| 640 | { |
| 641 | struct sdmmc_function *sf; |
| 642 | |
| 643 | sf = malloc(sizeof *sf, M_DEVBUF, M_WAITOK|M_ZERO); |
| 644 | if (sf == NULL) { |
| 645 | aprint_error_dev(sc->sc_dev, |
| 646 | "couldn't alloc memory (sdmmc function)\n" ); |
| 647 | return NULL; |
| 648 | } |
| 649 | |
| 650 | sf->sc = sc; |
| 651 | sf->number = -1; |
| 652 | sf->cis.manufacturer = SDMMC_VENDOR_INVALID; |
| 653 | sf->cis.product = SDMMC_PRODUCT_INVALID; |
| 654 | sf->cis.function = SDMMC_FUNCTION_INVALID; |
| 655 | sf->width = 1; |
| 656 | |
| 657 | if (ISSET(sc->sc_flags, SMF_MEM_MODE) && |
| 658 | ISSET(sc->sc_caps, SMC_CAPS_DMA) && |
| 659 | !ISSET(sc->sc_caps, SMC_CAPS_MULTI_SEG_DMA)) { |
| 660 | bus_dma_segment_t ds; |
| 661 | int rseg, error; |
| 662 | |
| 663 | error = bus_dmamap_create(sc->sc_dmat, MAXPHYS, 1, |
| 664 | MAXPHYS, 0, BUS_DMA_WAITOK, &sf->bbuf_dmap); |
| 665 | if (error) |
| 666 | goto fail1; |
| 667 | error = bus_dmamem_alloc(sc->sc_dmat, MAXPHYS, |
| 668 | PAGE_SIZE, 0, &ds, 1, &rseg, BUS_DMA_WAITOK); |
| 669 | if (error) |
| 670 | goto fail2; |
| 671 | error = bus_dmamem_map(sc->sc_dmat, &ds, 1, MAXPHYS, |
| 672 | &sf->bbuf, BUS_DMA_WAITOK); |
| 673 | if (error) |
| 674 | goto fail3; |
| 675 | error = bus_dmamap_load(sc->sc_dmat, sf->bbuf_dmap, |
| 676 | sf->bbuf, MAXPHYS, NULL, |
| 677 | BUS_DMA_WAITOK|BUS_DMA_READ|BUS_DMA_WRITE); |
| 678 | if (error) |
| 679 | goto fail4; |
| 680 | error = bus_dmamap_create(sc->sc_dmat, MAXPHYS, 1, |
| 681 | MAXPHYS, 0, BUS_DMA_WAITOK, &sf->sseg_dmap); |
| 682 | if (!error) |
| 683 | goto out; |
| 684 | |
| 685 | bus_dmamap_unload(sc->sc_dmat, sf->bbuf_dmap); |
| 686 | fail4: |
| 687 | bus_dmamem_unmap(sc->sc_dmat, sf->bbuf, MAXPHYS); |
| 688 | fail3: |
| 689 | bus_dmamem_free(sc->sc_dmat, &ds, 1); |
| 690 | fail2: |
| 691 | bus_dmamap_destroy(sc->sc_dmat, sf->bbuf_dmap); |
| 692 | fail1: |
| 693 | free(sf, M_DEVBUF); |
| 694 | sf = NULL; |
| 695 | } |
| 696 | out: |
| 697 | |
| 698 | return sf; |
| 699 | } |
| 700 | |
| 701 | void |
| 702 | sdmmc_function_free(struct sdmmc_function *sf) |
| 703 | { |
| 704 | struct sdmmc_softc *sc = sf->sc; |
| 705 | |
| 706 | if (ISSET(sc->sc_flags, SMF_MEM_MODE) && |
| 707 | ISSET(sc->sc_caps, SMC_CAPS_DMA) && |
| 708 | !ISSET(sc->sc_caps, SMC_CAPS_MULTI_SEG_DMA)) { |
| 709 | bus_dmamap_destroy(sc->sc_dmat, sf->sseg_dmap); |
| 710 | bus_dmamap_unload(sc->sc_dmat, sf->bbuf_dmap); |
| 711 | bus_dmamem_unmap(sc->sc_dmat, sf->bbuf, MAXPHYS); |
| 712 | bus_dmamem_free(sc->sc_dmat, |
| 713 | sf->bbuf_dmap->dm_segs, sf->bbuf_dmap->dm_nsegs); |
| 714 | bus_dmamap_destroy(sc->sc_dmat, sf->bbuf_dmap); |
| 715 | } |
| 716 | |
| 717 | free(sf, M_DEVBUF); |
| 718 | } |
| 719 | |
| 720 | /* |
| 721 | * Scan for I/O functions and memory cards on the bus, allocating a |
| 722 | * sdmmc_function structure for each. |
| 723 | */ |
| 724 | static int |
| 725 | sdmmc_scan(struct sdmmc_softc *sc) |
| 726 | { |
| 727 | |
| 728 | if (!ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 729 | /* Scan for I/O functions. */ |
| 730 | if (ISSET(sc->sc_flags, SMF_IO_MODE)) |
| 731 | sdmmc_io_scan(sc); |
| 732 | } |
| 733 | |
| 734 | /* Scan for memory cards on the bus. */ |
| 735 | if (ISSET(sc->sc_flags, SMF_MEM_MODE)) |
| 736 | sdmmc_mem_scan(sc); |
| 737 | |
| 738 | /* There should be at least one function now. */ |
| 739 | if (SIMPLEQ_EMPTY(&sc->sf_head)) { |
| 740 | aprint_error_dev(sc->sc_dev, "couldn't identify card\n" ); |
| 741 | return 1; |
| 742 | } |
| 743 | return 0; |
| 744 | } |
| 745 | |
| 746 | /* |
| 747 | * Initialize all the distinguished functions of the card, be it I/O |
| 748 | * or memory functions. |
| 749 | */ |
| 750 | static int |
| 751 | sdmmc_init(struct sdmmc_softc *sc) |
| 752 | { |
| 753 | struct sdmmc_function *sf; |
| 754 | |
| 755 | /* Initialize all identified card functions. */ |
| 756 | SIMPLEQ_FOREACH(sf, &sc->sf_head, sf_list) { |
| 757 | if (!ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 758 | if (ISSET(sc->sc_flags, SMF_IO_MODE) && |
| 759 | sdmmc_io_init(sc, sf) != 0) { |
| 760 | aprint_error_dev(sc->sc_dev, |
| 761 | "i/o init failed\n" ); |
| 762 | } |
| 763 | } |
| 764 | |
| 765 | if (ISSET(sc->sc_flags, SMF_MEM_MODE) && |
| 766 | sdmmc_mem_init(sc, sf) != 0) { |
| 767 | aprint_error_dev(sc->sc_dev, "mem init failed\n" ); |
| 768 | } |
| 769 | } |
| 770 | |
| 771 | /* Any good functions left after initialization? */ |
| 772 | SIMPLEQ_FOREACH(sf, &sc->sf_head, sf_list) { |
| 773 | if (!ISSET(sf->flags, SFF_ERROR)) |
| 774 | return 0; |
| 775 | } |
| 776 | |
| 777 | /* No, we should probably power down the card. */ |
| 778 | return 1; |
| 779 | } |
| 780 | |
| 781 | void |
| 782 | sdmmc_delay(u_int usecs) |
| 783 | { |
| 784 | |
| 785 | delay(usecs); |
| 786 | } |
| 787 | |
| 788 | int |
| 789 | sdmmc_app_command(struct sdmmc_softc *sc, struct sdmmc_function *sf, struct sdmmc_command *cmd) |
| 790 | { |
| 791 | struct sdmmc_command acmd; |
| 792 | int error; |
| 793 | |
| 794 | DPRINTF(1,("sdmmc_app_command: start\n" )); |
| 795 | |
| 796 | /* Don't lock */ |
| 797 | |
| 798 | memset(&acmd, 0, sizeof(acmd)); |
| 799 | acmd.c_opcode = MMC_APP_CMD; |
| 800 | acmd.c_arg = (sf != NULL) ? (sf->rca << 16) : 0; |
| 801 | acmd.c_flags = SCF_CMD_AC | SCF_RSP_R1 | SCF_RSP_SPI_R1 | (cmd->c_flags & SCF_TOUT_OK); |
| 802 | |
| 803 | error = sdmmc_mmc_command(sc, &acmd); |
| 804 | if (error == 0) { |
| 805 | if (!ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE) && |
| 806 | !ISSET(MMC_R1(acmd.c_resp), MMC_R1_APP_CMD)) { |
| 807 | /* Card does not support application commands. */ |
| 808 | error = ENODEV; |
| 809 | } else { |
| 810 | error = sdmmc_mmc_command(sc, cmd); |
| 811 | } |
| 812 | } |
| 813 | DPRINTF(1,("sdmmc_app_command: done (error=%d)\n" , error)); |
| 814 | return error; |
| 815 | } |
| 816 | |
| 817 | /* |
| 818 | * Execute MMC command and data transfers. All interactions with the |
| 819 | * host controller to complete the command happen in the context of |
| 820 | * the current process. |
| 821 | */ |
| 822 | int |
| 823 | sdmmc_mmc_command(struct sdmmc_softc *sc, struct sdmmc_command *cmd) |
| 824 | { |
| 825 | int error; |
| 826 | |
| 827 | DPRINTF(1,("sdmmc_mmc_command: cmd=%d, arg=%#x, flags=%#x\n" , |
| 828 | cmd->c_opcode, cmd->c_arg, cmd->c_flags)); |
| 829 | |
| 830 | /* Don't lock */ |
| 831 | |
| 832 | #if defined(DIAGNOSTIC) || defined(SDMMC_DEBUG) |
| 833 | if (cmd->c_data && !ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 834 | if (sc->sc_card == NULL) |
| 835 | panic("%s: deselected card\n" , DEVNAME(sc)); |
| 836 | } |
| 837 | #endif |
| 838 | |
| 839 | sdmmc_chip_exec_command(sc->sc_sct, sc->sc_sch, cmd); |
| 840 | |
| 841 | #ifdef SDMMC_DEBUG |
| 842 | sdmmc_dump_command(sc, cmd); |
| 843 | #endif |
| 844 | |
| 845 | error = cmd->c_error; |
| 846 | |
| 847 | DPRINTF(1,("sdmmc_mmc_command: error=%d\n" , error)); |
| 848 | |
| 849 | if (error && |
| 850 | (cmd->c_opcode == MMC_READ_BLOCK_MULTIPLE || |
| 851 | cmd->c_opcode == MMC_WRITE_BLOCK_MULTIPLE)) { |
| 852 | sdmmc_stop_transmission(sc); |
| 853 | } |
| 854 | |
| 855 | return error; |
| 856 | } |
| 857 | |
| 858 | /* |
| 859 | * Send the "STOP TRANSMISSION" command |
| 860 | */ |
| 861 | void |
| 862 | sdmmc_stop_transmission(struct sdmmc_softc *sc) |
| 863 | { |
| 864 | struct sdmmc_command cmd; |
| 865 | |
| 866 | DPRINTF(1,("sdmmc_stop_transmission\n" )); |
| 867 | |
| 868 | /* Don't lock */ |
| 869 | |
| 870 | memset(&cmd, 0, sizeof(cmd)); |
| 871 | cmd.c_opcode = MMC_STOP_TRANSMISSION; |
| 872 | cmd.c_flags = SCF_CMD_AC | SCF_RSP_R1B | SCF_RSP_SPI_R1B; |
| 873 | |
| 874 | (void)sdmmc_mmc_command(sc, &cmd); |
| 875 | } |
| 876 | |
| 877 | /* |
| 878 | * Send the "GO IDLE STATE" command. |
| 879 | */ |
| 880 | void |
| 881 | sdmmc_go_idle_state(struct sdmmc_softc *sc) |
| 882 | { |
| 883 | struct sdmmc_command cmd; |
| 884 | |
| 885 | DPRINTF(1,("sdmmc_go_idle_state\n" )); |
| 886 | |
| 887 | /* Don't lock */ |
| 888 | |
| 889 | memset(&cmd, 0, sizeof(cmd)); |
| 890 | cmd.c_opcode = MMC_GO_IDLE_STATE; |
| 891 | cmd.c_flags = SCF_CMD_BC | SCF_RSP_R0 | SCF_RSP_SPI_R1; |
| 892 | |
| 893 | (void)sdmmc_mmc_command(sc, &cmd); |
| 894 | } |
| 895 | |
| 896 | /* |
| 897 | * Retrieve (SD) or set (MMC) the relative card address (RCA). |
| 898 | */ |
| 899 | int |
| 900 | sdmmc_set_relative_addr(struct sdmmc_softc *sc, struct sdmmc_function *sf) |
| 901 | { |
| 902 | struct sdmmc_command cmd; |
| 903 | int error; |
| 904 | |
| 905 | /* Don't lock */ |
| 906 | |
| 907 | if (ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 908 | aprint_error_dev(sc->sc_dev, |
| 909 | "sdmmc_set_relative_addr: SMC_CAPS_SPI_MODE set" ); |
| 910 | return EIO; |
| 911 | } |
| 912 | |
| 913 | memset(&cmd, 0, sizeof(cmd)); |
| 914 | if (ISSET(sc->sc_flags, SMF_SD_MODE)) { |
| 915 | cmd.c_opcode = SD_SEND_RELATIVE_ADDR; |
| 916 | cmd.c_flags = SCF_CMD_BCR | SCF_RSP_R6; |
| 917 | } else { |
| 918 | cmd.c_opcode = MMC_SET_RELATIVE_ADDR; |
| 919 | cmd.c_arg = MMC_ARG_RCA(sf->rca); |
| 920 | cmd.c_flags = SCF_CMD_AC | SCF_RSP_R1; |
| 921 | } |
| 922 | error = sdmmc_mmc_command(sc, &cmd); |
| 923 | if (error) |
| 924 | return error; |
| 925 | |
| 926 | if (ISSET(sc->sc_flags, SMF_SD_MODE)) |
| 927 | sf->rca = SD_R6_RCA(cmd.c_resp); |
| 928 | |
| 929 | return 0; |
| 930 | } |
| 931 | |
| 932 | int |
| 933 | sdmmc_select_card(struct sdmmc_softc *sc, struct sdmmc_function *sf) |
| 934 | { |
| 935 | struct sdmmc_command cmd; |
| 936 | int error; |
| 937 | |
| 938 | /* Don't lock */ |
| 939 | |
| 940 | if (ISSET(sc->sc_caps, SMC_CAPS_SPI_MODE)) { |
| 941 | aprint_error_dev(sc->sc_dev, |
| 942 | "sdmmc_select_card: SMC_CAPS_SPI_MODE set" ); |
| 943 | return EIO; |
| 944 | } |
| 945 | |
| 946 | if (sc->sc_card == sf |
| 947 | || (sf && sc->sc_card && sc->sc_card->rca == sf->rca)) { |
| 948 | sc->sc_card = sf; |
| 949 | return 0; |
| 950 | } |
| 951 | |
| 952 | memset(&cmd, 0, sizeof(cmd)); |
| 953 | cmd.c_opcode = MMC_SELECT_CARD; |
| 954 | cmd.c_arg = (sf == NULL) ? 0 : MMC_ARG_RCA(sf->rca); |
| 955 | cmd.c_flags = SCF_CMD_AC | ((sf == NULL) ? SCF_RSP_R0 : SCF_RSP_R1); |
| 956 | error = sdmmc_mmc_command(sc, &cmd); |
| 957 | if (error == 0 || sf == NULL) |
| 958 | sc->sc_card = sf; |
| 959 | |
| 960 | return error; |
| 961 | } |
| 962 | |
| 963 | #ifdef SDMMC_DEBUG |
| 964 | static void |
| 965 | sdmmc_dump_command(struct sdmmc_softc *sc, struct sdmmc_command *cmd) |
| 966 | { |
| 967 | int i; |
| 968 | |
| 969 | DPRINTF(1,("%s: cmd %u arg=%#x data=%p dlen=%d flags=%#x (error %d)\n" , |
| 970 | DEVNAME(sc), cmd->c_opcode, cmd->c_arg, cmd->c_data, |
| 971 | cmd->c_datalen, cmd->c_flags, cmd->c_error)); |
| 972 | |
| 973 | if (cmd->c_error || sdmmcdebug < 1) |
| 974 | return; |
| 975 | |
| 976 | aprint_normal_dev(sc->sc_dev, "resp=" ); |
| 977 | if (ISSET(cmd->c_flags, SCF_RSP_136)) |
| 978 | for (i = 0; i < sizeof cmd->c_resp; i++) |
| 979 | aprint_normal("%02x " , ((uint8_t *)cmd->c_resp)[i]); |
| 980 | else if (ISSET(cmd->c_flags, SCF_RSP_PRESENT)) |
| 981 | for (i = 0; i < 4; i++) |
| 982 | aprint_normal("%02x " , ((uint8_t *)cmd->c_resp)[i]); |
| 983 | else |
| 984 | aprint_normal("none" ); |
| 985 | aprint_normal("\n" ); |
| 986 | } |
| 987 | |
| 988 | void |
| 989 | sdmmc_dump_data(const char *title, void *ptr, size_t size) |
| 990 | { |
| 991 | char buf[16]; |
| 992 | uint8_t *p = ptr; |
| 993 | int i, j; |
| 994 | |
| 995 | printf("sdmmc_dump_data: %s\n" , title ? title : "" ); |
| 996 | printf("--------+--------------------------------------------------+------------------+\n" ); |
| 997 | printf("offset | +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +a +b +c +d +e +f | data |\n" ); |
| 998 | printf("--------+--------------------------------------------------+------------------+\n" ); |
| 999 | for (i = 0; i < (int)size; i++) { |
| 1000 | if ((i % 16) == 0) { |
| 1001 | printf("%08x| " , i); |
| 1002 | } else if ((i % 16) == 8) { |
| 1003 | printf(" " ); |
| 1004 | } |
| 1005 | |
| 1006 | printf("%02x " , p[i]); |
| 1007 | buf[i % 16] = p[i]; |
| 1008 | |
| 1009 | if ((i % 16) == 15) { |
| 1010 | printf("| " ); |
| 1011 | for (j = 0; j < 16; j++) { |
| 1012 | if (buf[j] >= 0x20 && buf[j] <= 0x7e) { |
| 1013 | printf("%c" , buf[j]); |
| 1014 | } else { |
| 1015 | printf("." ); |
| 1016 | } |
| 1017 | } |
| 1018 | printf(" |\n" ); |
| 1019 | } |
| 1020 | } |
| 1021 | if ((i % 16) != 0) { |
| 1022 | j = (i % 16); |
| 1023 | for (; j < 16; j++) { |
| 1024 | printf(" " ); |
| 1025 | if ((j % 16) == 8) { |
| 1026 | printf(" " ); |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | printf("| " ); |
| 1031 | for (j = 0; j < (i % 16); j++) { |
| 1032 | if (buf[j] >= 0x20 && buf[j] <= 0x7e) { |
| 1033 | printf("%c" , buf[j]); |
| 1034 | } else { |
| 1035 | printf("." ); |
| 1036 | } |
| 1037 | } |
| 1038 | for (; j < 16; j++) { |
| 1039 | printf(" " ); |
| 1040 | } |
| 1041 | printf(" |\n" ); |
| 1042 | } |
| 1043 | printf("--------+--------------------------------------------------+------------------+\n" ); |
| 1044 | } |
| 1045 | #endif |
| 1046 | |