1 /* $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-4-Clause
5 *
6 * Copyright (c) 1997 Marc Horowitz. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by Marc Horowitz.
19 * 4. The name of the author may not be used to endorse or promote products
20 * derived from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
36
37 #include <sys/param.h>
38 #include <sys/systm.h>
39 #include <sys/malloc.h>
40 #include <sys/module.h>
41 #include <sys/kernel.h>
42 #include <sys/queue.h>
43 #include <sys/sbuf.h>
44 #include <sys/sysctl.h>
45 #include <sys/types.h>
46
47 #include <sys/bus.h>
48 #include <machine/bus.h>
49 #include <sys/rman.h>
50 #include <machine/resource.h>
51
52 #include <net/ethernet.h>
53
54 #include <dev/pccard/pccardreg.h>
55 #include <dev/pccard/pccardvar.h>
56 #include <dev/pccard/pccardvarp.h>
57 #include <dev/pccard/pccard_cis.h>
58
59 #include "power_if.h"
60 #include "card_if.h"
61
62 #define PCCARDDEBUG
63
64 /* sysctl vars */
65 static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
66
67 int pccard_debug = 0;
68 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN,
69 &pccard_debug, 0,
70 "pccard debug");
71
72 int pccard_cis_debug = 0;
73 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RWTUN,
74 &pccard_cis_debug, 0, "pccard CIS debug");
75
76 #ifdef PCCARDDEBUG
77 #define DPRINTF(arg) if (pccard_debug) printf arg
78 #define DEVPRINTF(arg) if (pccard_debug) device_printf arg
79 #define PRVERBOSE(arg) printf arg
80 #define DEVPRVERBOSE(arg) device_printf arg
81 #else
82 #define DPRINTF(arg)
83 #define DEVPRINTF(arg)
84 #define PRVERBOSE(arg) if (bootverbose) printf arg
85 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
86 #endif
87
88 static int pccard_ccr_read(struct pccard_function *pf, int ccr);
89 static void pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
90 static int pccard_attach_card(device_t dev);
91 static int pccard_detach_card(device_t dev);
92 static void pccard_function_init(struct pccard_function *pf, int entry);
93 static void pccard_function_free(struct pccard_function *pf);
94 static int pccard_function_enable(struct pccard_function *pf);
95 static void pccard_function_disable(struct pccard_function *pf);
96 static int pccard_probe(device_t dev);
97 static int pccard_attach(device_t dev);
98 static int pccard_detach(device_t dev);
99 static void pccard_print_resources(struct resource_list *rl,
100 const char *name, int type, int count, const char *format);
101 static int pccard_print_child(device_t dev, device_t child);
102 static int pccard_set_resource(device_t dev, device_t child, int type,
103 int rid, rman_res_t start, rman_res_t count);
104 static int pccard_get_resource(device_t dev, device_t child, int type,
105 int rid, rman_res_t *startp, rman_res_t *countp);
106 static void pccard_delete_resource(device_t dev, device_t child, int type,
107 int rid);
108 static int pccard_set_res_flags(device_t dev, device_t child, int type,
109 int rid, u_long flags);
110 static int pccard_set_memory_offset(device_t dev, device_t child, int rid,
111 uint32_t offset, uint32_t *deltap);
112 static int pccard_probe_and_attach_child(device_t dev, device_t child,
113 struct pccard_function *pf);
114 static void pccard_probe_nomatch(device_t cbdev, device_t child);
115 static int pccard_read_ivar(device_t bus, device_t child, int which,
116 uintptr_t *result);
117 static void pccard_driver_added(device_t dev, driver_t *driver);
118 static struct resource *pccard_alloc_resource(device_t dev,
119 device_t child, int type, int *rid, rman_res_t start,
120 rman_res_t end, rman_res_t count, u_int flags);
121 static int pccard_release_resource(device_t dev, device_t child, int type,
122 int rid, struct resource *r);
123 static void pccard_child_detached(device_t parent, device_t dev);
124 static int pccard_filter(void *arg);
125 static void pccard_intr(void *arg);
126 static int pccard_setup_intr(device_t dev, device_t child,
127 struct resource *irq, int flags, driver_filter_t *filt,
128 driver_intr_t *intr, void *arg, void **cookiep);
129 static int pccard_teardown_intr(device_t dev, device_t child,
130 struct resource *r, void *cookie);
131
132 static const struct pccard_product *
133 pccard_do_product_lookup(device_t bus, device_t dev,
134 const struct pccard_product *tab, size_t ent_size,
135 pccard_product_match_fn matchfn);
136
137
138 static int
pccard_ccr_read(struct pccard_function * pf,int ccr)139 pccard_ccr_read(struct pccard_function *pf, int ccr)
140 {
141 return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
142 pf->pf_ccr_offset + ccr));
143 }
144
145 static void
pccard_ccr_write(struct pccard_function * pf,int ccr,int val)146 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
147 {
148 if ((pf->ccr_mask) & (1 << (ccr / 2))) {
149 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
150 pf->pf_ccr_offset + ccr, val);
151 }
152 }
153
154 static int
pccard_set_default_descr(device_t dev)155 pccard_set_default_descr(device_t dev)
156 {
157 const char *vendorstr, *prodstr;
158 uint32_t vendor, prod;
159 char *str;
160
161 if (pccard_get_vendor_str(dev, &vendorstr))
162 return (0);
163 if (pccard_get_product_str(dev, &prodstr))
164 return (0);
165 if (vendorstr != NULL && prodstr != NULL) {
166 str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
167 M_WAITOK);
168 sprintf(str, "%s %s", vendorstr, prodstr);
169 device_set_desc_copy(dev, str);
170 free(str, M_DEVBUF);
171 } else {
172 if (pccard_get_vendor(dev, &vendor))
173 return (0);
174 if (pccard_get_product(dev, &prod))
175 return (0);
176 str = malloc(100, M_DEVBUF, M_WAITOK);
177 snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod);
178 device_set_desc_copy(dev, str);
179 free(str, M_DEVBUF);
180 }
181 return (0);
182 }
183
184 static int
pccard_attach_card(device_t dev)185 pccard_attach_card(device_t dev)
186 {
187 struct pccard_softc *sc = PCCARD_SOFTC(dev);
188 struct pccard_function *pf;
189 struct pccard_ivar *ivar;
190 device_t child;
191 int i;
192
193 if (!STAILQ_EMPTY(&sc->card.pf_head)) {
194 if (bootverbose || pccard_debug)
195 device_printf(dev, "Card already inserted.\n");
196 }
197
198 DEVPRINTF((dev, "chip_socket_enable\n"));
199 POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
200
201 DEVPRINTF((dev, "read_cis\n"));
202 pccard_read_cis(sc);
203
204 DEVPRINTF((dev, "check_cis_quirks\n"));
205 pccard_check_cis_quirks(dev);
206
207 /*
208 * bail now if the card has no functions, or if there was an error in
209 * the cis.
210 */
211
212 if (sc->card.error) {
213 device_printf(dev, "CARD ERROR!\n");
214 return (1);
215 }
216 if (STAILQ_EMPTY(&sc->card.pf_head)) {
217 device_printf(dev, "Card has no functions!\n");
218 return (1);
219 }
220
221 if (bootverbose || pccard_debug)
222 pccard_print_cis(dev);
223
224 DEVPRINTF((dev, "functions scanning\n"));
225 i = -1;
226 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
227 i++;
228 if (STAILQ_EMPTY(&pf->cfe_head)) {
229 device_printf(dev,
230 "Function %d has no config entries.!\n", i);
231 continue;
232 }
233 pf->sc = sc;
234 pf->cfe = NULL;
235 pf->dev = NULL;
236 }
237 DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
238 pccard_mfc(sc)));
239
240 mtx_lock(&Giant);
241 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
242 if (STAILQ_EMPTY(&pf->cfe_head))
243 continue;
244 ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
245 M_WAITOK | M_ZERO);
246 resource_list_init(&ivar->resources);
247 child = device_add_child(dev, NULL, -1);
248 device_set_ivars(child, ivar);
249 ivar->pf = pf;
250 pf->dev = child;
251 pccard_probe_and_attach_child(dev, child, pf);
252 }
253 mtx_unlock(&Giant);
254 return (0);
255 }
256
257 static int
pccard_probe_and_attach_child(device_t dev,device_t child,struct pccard_function * pf)258 pccard_probe_and_attach_child(device_t dev, device_t child,
259 struct pccard_function *pf)
260 {
261 struct pccard_softc *sc = PCCARD_SOFTC(dev);
262 int error;
263
264 /*
265 * In NetBSD, the drivers are responsible for activating each
266 * function of a card and selecting the config to use. In
267 * FreeBSD, all that's done automatically in the typical lazy
268 * way we do device resoruce allocation (except we pick the
269 * cfe up front). This is the biggest depature from the
270 * inherited NetBSD model, apart from the FreeBSD resource code.
271 *
272 * This seems to work well in practice for most cards.
273 * However, there are two cases that are problematic. If a
274 * driver wishes to pick and chose which config entry to use,
275 * then this method falls down. These are usually older
276 * cards. In addition, there are some cards that have
277 * multiple hardware units on the cards, but presents only one
278 * CIS chain. These cards are combination cards, but only one
279 * of these units can be on at a time.
280 *
281 * To overcome this limitation, while preserving the basic
282 * model, the probe routine can select a cfe and try to
283 * activate it. If that succeeds, then we'll keep track of
284 * and let that information persist until we attach the card.
285 * Probe routines that do this MUST return 0, and cannot
286 * participate in the bidding process for a device. This
287 * seems harsh until you realize that if a probe routine knows
288 * enough to override the cfe we pick, then chances are very
289 * very good that it is the only driver that could hope to
290 * cope with the card. Bidding is for generic drivers, and
291 * while some of them may also match, none of them will do
292 * configuration override.
293 */
294 error = device_probe(child);
295 if (error != 0)
296 goto out;
297 pccard_function_init(pf, -1);
298 if (sc->sc_enabled_count == 0)
299 POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
300 if (pccard_function_enable(pf) == 0 &&
301 pccard_set_default_descr(child) == 0 &&
302 device_attach(child) == 0) {
303 DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x "
304 "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
305 pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
306 pf->ccr_mask, pccard_ccr_read(pf, 0x00),
307 pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
308 pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
309 pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
310 pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
311 return (0);
312 }
313 error = ENXIO;
314 out:;
315 /*
316 * Probe may fail AND also try to select a cfe, if so, free
317 * it. This is how we do cfe override. Or the attach fails.
318 * Either way, we have to clean up.
319 */
320 if (pf->cfe != NULL)
321 pccard_function_disable(pf);
322 pf->cfe = NULL;
323 pccard_function_free(pf);
324 return error;
325 }
326
327 static int
pccard_detach_card(device_t dev)328 pccard_detach_card(device_t dev)
329 {
330 struct pccard_softc *sc = PCCARD_SOFTC(dev);
331 struct pccard_function *pf;
332 struct pccard_config_entry *cfe;
333 struct pccard_ivar *devi;
334 int state;
335
336 /*
337 * We are running on either the PCCARD socket's event thread
338 * or in user context detaching a device by user request.
339 */
340 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
341 if (pf->dev == NULL)
342 continue;
343 state = device_get_state(pf->dev);
344 if (state == DS_ATTACHED || state == DS_BUSY)
345 device_detach(pf->dev);
346 if (pf->cfe != NULL)
347 pccard_function_disable(pf);
348 pccard_function_free(pf);
349 devi = PCCARD_IVAR(pf->dev);
350 device_delete_child(dev, pf->dev);
351 free(devi, M_DEVBUF);
352 }
353 if (sc->sc_enabled_count == 0)
354 POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
355
356 while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
357 while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
358 STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
359 free(cfe, M_DEVBUF);
360 }
361 STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
362 free(pf, M_DEVBUF);
363 }
364 STAILQ_INIT(&sc->card.pf_head);
365 return (0);
366 }
367
368 static const struct pccard_product *
pccard_do_product_lookup(device_t bus,device_t dev,const struct pccard_product * tab,size_t ent_size,pccard_product_match_fn matchfn)369 pccard_do_product_lookup(device_t bus, device_t dev,
370 const struct pccard_product *tab, size_t ent_size,
371 pccard_product_match_fn matchfn)
372 {
373 const struct pccard_product *ent;
374 int matches;
375 uint32_t vendor;
376 uint32_t prod;
377 const char *vendorstr;
378 const char *prodstr;
379 const char *cis3str;
380 const char *cis4str;
381
382 #ifdef DIAGNOSTIC
383 if (sizeof *ent > ent_size)
384 panic("pccard_product_lookup: bogus ent_size %jd",
385 (intmax_t) ent_size);
386 #endif
387 if (pccard_get_vendor(dev, &vendor))
388 return (NULL);
389 if (pccard_get_product(dev, &prod))
390 return (NULL);
391 if (pccard_get_vendor_str(dev, &vendorstr))
392 return (NULL);
393 if (pccard_get_product_str(dev, &prodstr))
394 return (NULL);
395 if (pccard_get_cis3_str(dev, &cis3str))
396 return (NULL);
397 if (pccard_get_cis4_str(dev, &cis4str))
398 return (NULL);
399 for (ent = tab; ent->pp_vendor != 0; ent =
400 (const struct pccard_product *) ((const char *) ent + ent_size)) {
401 matches = 1;
402 if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
403 ent->pp_product == PCCARD_PRODUCT_ANY &&
404 ent->pp_cis[0] == NULL &&
405 ent->pp_cis[1] == NULL) {
406 if (ent->pp_name)
407 device_printf(dev,
408 "Total wildcard entry ignored for %s\n",
409 ent->pp_name);
410 continue;
411 }
412 if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
413 vendor != ent->pp_vendor)
414 matches = 0;
415 if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
416 prod != ent->pp_product)
417 matches = 0;
418 if (matches && ent->pp_cis[0] &&
419 (vendorstr == NULL ||
420 strcmp(ent->pp_cis[0], vendorstr) != 0))
421 matches = 0;
422 if (matches && ent->pp_cis[1] &&
423 (prodstr == NULL ||
424 strcmp(ent->pp_cis[1], prodstr) != 0))
425 matches = 0;
426 if (matches && ent->pp_cis[2] &&
427 (cis3str == NULL ||
428 strcmp(ent->pp_cis[2], cis3str) != 0))
429 matches = 0;
430 if (matches && ent->pp_cis[3] &&
431 (cis4str == NULL ||
432 strcmp(ent->pp_cis[3], cis4str) != 0))
433 matches = 0;
434 if (matchfn != NULL)
435 matches = (*matchfn)(dev, ent, matches);
436 if (matches)
437 return (ent);
438 }
439 return (NULL);
440 }
441
442 /**
443 * @brief pccard_select_cfe
444 *
445 * Select a cfe entry to use. Should be called from the pccard's probe
446 * routine after it knows for sure that it wants this card.
447 *
448 * XXX I think we need to make this symbol be static, ala the kobj stuff
449 * we do for everything else. This is a quick hack.
450 */
451 int
pccard_select_cfe(device_t dev,int entry)452 pccard_select_cfe(device_t dev, int entry)
453 {
454 struct pccard_ivar *devi = PCCARD_IVAR(dev);
455 struct pccard_function *pf = devi->pf;
456
457 pccard_function_init(pf, entry);
458 return (pf->cfe ? 0 : ENOMEM);
459 }
460
461 /*
462 * Initialize a PCCARD function. May be called as long as the function is
463 * disabled.
464 *
465 * Note: pccard_function_init should not keep resources allocated. It should
466 * only set them up ala isa pnp, set the values in the rl lists, and return.
467 * Any resource held after pccard_function_init is called is a bug. However,
468 * the bus routines to get the resources also assume that pccard_function_init
469 * does this, so they need to be fixed too.
470 */
471 static void
pccard_function_init(struct pccard_function * pf,int entry)472 pccard_function_init(struct pccard_function *pf, int entry)
473 {
474 struct pccard_config_entry *cfe;
475 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
476 struct resource_list *rl = &devi->resources;
477 struct resource_list_entry *rle;
478 struct resource *r = NULL;
479 struct pccard_ce_iospace *ios;
480 struct pccard_ce_memspace *mems;
481 device_t bus;
482 rman_res_t start, end, len;
483 int i, rid, spaces;
484
485 if (pf->pf_flags & PFF_ENABLED) {
486 printf("pccard_function_init: function is enabled");
487 return;
488 }
489
490 /*
491 * Driver probe routine requested a specific entry already
492 * that succeeded.
493 */
494 if (pf->cfe != NULL)
495 return;
496
497 /*
498 * walk the list of configuration entries until we find one that
499 * we can allocate all the resources to.
500 */
501 bus = device_get_parent(pf->dev);
502 STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
503 if (cfe->iftype != PCCARD_IFTYPE_IO)
504 continue;
505 if (entry != -1 && cfe->number != entry)
506 continue;
507 spaces = 0;
508 for (i = 0; i < cfe->num_iospace; i++) {
509 ios = cfe->iospace + i;
510 start = ios->start;
511 if (start)
512 end = start + ios->length - 1;
513 else
514 end = ~0;
515 DEVPRINTF((bus, "I/O rid %d start %#jx end %#jx\n",
516 i, start, end));
517 rid = i;
518 len = ios->length;
519 r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
520 start, end, len, rman_make_alignment_flags(len));
521 if (r == NULL) {
522 DEVPRINTF((bus, "I/O rid %d failed\n", i));
523 goto not_this_one;
524 }
525 rle = resource_list_add(rl, SYS_RES_IOPORT,
526 rid, rman_get_start(r), rman_get_end(r), len);
527 if (rle == NULL)
528 panic("Cannot add resource rid %d IOPORT", rid);
529 rle->res = r;
530 spaces++;
531 }
532 for (i = 0; i < cfe->num_memspace; i++) {
533 mems = cfe->memspace + i;
534 start = mems->cardaddr + mems->hostaddr;
535 if (start)
536 end = start + mems->length - 1;
537 else
538 end = ~0;
539 DEVPRINTF((bus, "Memory rid %d start %#jx end %#jx\ncardaddr %#jx hostaddr %#jx length %#jx\n",
540 i, start, end, mems->cardaddr, mems->hostaddr,
541 mems->length));
542 rid = i;
543 len = mems->length;
544 r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
545 start, end, len, rman_make_alignment_flags(len));
546 if (r == NULL) {
547 DEVPRINTF((bus, "Memory rid %d failed\n", i));
548 // goto not_this_one;
549 continue;
550 }
551 rle = resource_list_add(rl, SYS_RES_MEMORY,
552 rid, rman_get_start(r), rman_get_end(r), len);
553 if (rle == NULL)
554 panic("Cannot add resource rid %d MEM", rid);
555 rle->res = r;
556 spaces++;
557 }
558 if (spaces == 0) {
559 DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
560 goto not_this_one;
561 }
562 if (cfe->irqmask) {
563 rid = 0;
564 r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
565 RF_SHAREABLE);
566 if (r == NULL) {
567 DEVPRINTF((bus, "IRQ rid %d failed\n", rid));
568 goto not_this_one;
569 }
570 rle = resource_list_add(rl, SYS_RES_IRQ, rid,
571 rman_get_start(r), rman_get_end(r), 1);
572 if (rle == NULL)
573 panic("Cannot add resource rid %d IRQ", rid);
574 rle->res = r;
575 }
576 /* If we get to here, we've allocated all we need */
577 pf->cfe = cfe;
578 break;
579 not_this_one:;
580 DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
581 cfe->number));
582 resource_list_purge(rl);
583 }
584 }
585
586 /*
587 * Free resources allocated by pccard_function_init(), May be called as long
588 * as the function is disabled.
589 *
590 * NOTE: This function should be unnecessary. pccard_function_init should
591 * never keep resources initialized.
592 */
593 static void
pccard_function_free(struct pccard_function * pf)594 pccard_function_free(struct pccard_function *pf)
595 {
596 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
597 struct resource_list_entry *rle;
598
599 if (pf->pf_flags & PFF_ENABLED) {
600 printf("pccard_function_free: function is enabled");
601 return;
602 }
603
604 STAILQ_FOREACH(rle, &devi->resources, link) {
605 if (rle->res) {
606 if (rman_get_device(rle->res) != pf->sc->dev)
607 device_printf(pf->sc->dev,
608 "function_free: Resource still owned by "
609 "child, oops. "
610 "(type=%d, rid=%d, addr=%#jx)\n",
611 rle->type, rle->rid,
612 rman_get_start(rle->res));
613 BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
614 pf->sc->dev, rle->type, rle->rid, rle->res);
615 rle->res = NULL;
616 }
617 }
618 resource_list_free(&devi->resources);
619 }
620
621 static void
pccard_mfc_adjust_iobase(struct pccard_function * pf,rman_res_t addr,rman_res_t offset,rman_res_t size)622 pccard_mfc_adjust_iobase(struct pccard_function *pf, rman_res_t addr,
623 rman_res_t offset, rman_res_t size)
624 {
625 bus_size_t iosize, tmp;
626
627 if (addr != 0) {
628 if (pf->pf_mfc_iomax == 0) {
629 pf->pf_mfc_iobase = addr + offset;
630 pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
631 } else {
632 /* this makes the assumption that nothing overlaps */
633 if (pf->pf_mfc_iobase > addr + offset)
634 pf->pf_mfc_iobase = addr + offset;
635 if (pf->pf_mfc_iomax < addr + offset + size)
636 pf->pf_mfc_iomax = addr + offset + size;
637 }
638 }
639
640 tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
641 /* round up to nearest (2^n)-1 */
642 for (iosize = 1; iosize < tmp; iosize <<= 1)
643 ;
644 iosize--;
645
646 DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
647 (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
648 pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
649 pf->pf_mfc_iobase & 0xff);
650 pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
651 (pf->pf_mfc_iobase >> 8) & 0xff);
652 pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
653 pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
654 pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
655 }
656
657 /* Enable a PCCARD function */
658 static int
pccard_function_enable(struct pccard_function * pf)659 pccard_function_enable(struct pccard_function *pf)
660 {
661 struct pccard_function *tmp;
662 int reg;
663 device_t dev = pf->sc->dev;
664
665 if (pf->cfe == NULL) {
666 DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
667 return (ENOMEM);
668 }
669
670 if (pf->pf_flags & PFF_ENABLED)
671 return (0);
672 pf->sc->sc_enabled_count++;
673
674 /*
675 * it's possible for different functions' CCRs to be in the same
676 * underlying page. Check for that.
677 */
678 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
679 if ((tmp->pf_flags & PFF_ENABLED) &&
680 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
681 ((pf->ccr_base + PCCARD_CCR_SIZE) <=
682 (tmp->ccr_base - tmp->pf_ccr_offset +
683 tmp->pf_ccr_realsize))) {
684 pf->pf_ccrt = tmp->pf_ccrt;
685 pf->pf_ccrh = tmp->pf_ccrh;
686 pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
687
688 /*
689 * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
690 * tmp->ccr_base) + pf->ccr_base;
691 */
692 /* pf->pf_ccr_offset =
693 (tmp->pf_ccr_offset + pf->ccr_base) -
694 tmp->ccr_base; */
695 pf->pf_ccr_window = tmp->pf_ccr_window;
696 break;
697 }
698 }
699 if (tmp == NULL) {
700 pf->ccr_rid = 0;
701 pf->ccr_res = bus_alloc_resource_anywhere(dev, SYS_RES_MEMORY,
702 &pf->ccr_rid, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE);
703 if (!pf->ccr_res)
704 goto bad;
705 DEVPRINTF((dev, "ccr_res == %#jx-%#jx, base=%#x\n",
706 rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
707 pf->ccr_base));
708 CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
709 pf->ccr_rid, PCCARD_A_MEM_ATTR);
710 CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
711 pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
712 pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
713 pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
714 pf->pf_ccr_realsize = 1;
715 }
716
717 reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
718 reg |= PCCARD_CCR_OPTION_LEVIREQ;
719 if (pccard_mfc(pf->sc)) {
720 reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
721 PCCARD_CCR_OPTION_ADDR_DECODE);
722 /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
723 }
724 pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
725
726 reg = 0;
727 if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
728 reg |= PCCARD_CCR_STATUS_IOIS8;
729 if (pf->cfe->flags & PCCARD_CFE_AUDIO)
730 reg |= PCCARD_CCR_STATUS_AUDIO;
731 pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
732
733 pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
734
735 if (pccard_mfc(pf->sc))
736 pccard_mfc_adjust_iobase(pf, 0, 0, 0);
737
738 #ifdef PCCARDDEBUG
739 if (pccard_debug) {
740 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
741 device_printf(tmp->sc->dev,
742 "function %d CCR at %d offset %#x: "
743 "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n",
744 tmp->number, tmp->pf_ccr_window,
745 tmp->pf_ccr_offset,
746 pccard_ccr_read(tmp, 0x00),
747 pccard_ccr_read(tmp, 0x02),
748 pccard_ccr_read(tmp, 0x04),
749 pccard_ccr_read(tmp, 0x06),
750 pccard_ccr_read(tmp, 0x0A),
751 pccard_ccr_read(tmp, 0x0C),
752 pccard_ccr_read(tmp, 0x0E),
753 pccard_ccr_read(tmp, 0x10),
754 pccard_ccr_read(tmp, 0x12));
755 }
756 }
757 #endif
758 pf->pf_flags |= PFF_ENABLED;
759 return (0);
760
761 bad:
762 /*
763 * Decrement the reference count, and power down the socket, if
764 * necessary.
765 */
766 pf->sc->sc_enabled_count--;
767 DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
768
769 return (1);
770 }
771
772 /* Disable PCCARD function. */
773 static void
pccard_function_disable(struct pccard_function * pf)774 pccard_function_disable(struct pccard_function *pf)
775 {
776 struct pccard_function *tmp;
777 device_t dev = pf->sc->dev;
778
779 if (pf->cfe == NULL)
780 panic("pccard_function_disable: function not initialized");
781
782 if ((pf->pf_flags & PFF_ENABLED) == 0)
783 return;
784 if (pf->intr_handler != NULL) {
785 struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
786 struct resource_list_entry *rle =
787 resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
788 if (rle == NULL)
789 panic("Can't disable an interrupt with no IRQ res\n");
790 BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
791 pf->intr_handler_cookie);
792 }
793
794 /*
795 * it's possible for different functions' CCRs to be in the same
796 * underlying page. Check for that. Note we mark us as disabled
797 * first to avoid matching ourself.
798 */
799
800 pf->pf_flags &= ~PFF_ENABLED;
801 STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
802 if ((tmp->pf_flags & PFF_ENABLED) &&
803 (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
804 ((pf->ccr_base + PCCARD_CCR_SIZE) <=
805 (tmp->ccr_base - tmp->pf_ccr_offset +
806 tmp->pf_ccr_realsize)))
807 break;
808 }
809
810 /* Not used by anyone else; unmap the CCR. */
811 if (tmp == NULL) {
812 bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
813 pf->ccr_res);
814 pf->ccr_res = NULL;
815 }
816
817 /*
818 * Decrement the reference count, and power down the socket, if
819 * necessary.
820 */
821 pf->sc->sc_enabled_count--;
822 }
823
824 #define PCCARD_NPORT 2
825 #define PCCARD_NMEM 5
826 #define PCCARD_NIRQ 1
827 #define PCCARD_NDRQ 0
828
829 static int
pccard_probe(device_t dev)830 pccard_probe(device_t dev)
831 {
832 device_set_desc(dev, "16-bit PCCard bus");
833 return (0);
834 }
835
836 static int
pccard_attach(device_t dev)837 pccard_attach(device_t dev)
838 {
839 struct pccard_softc *sc = PCCARD_SOFTC(dev);
840 int err;
841
842 sc->dev = dev;
843 sc->sc_enabled_count = 0;
844 if ((err = pccard_device_create(sc)) != 0)
845 return (err);
846 STAILQ_INIT(&sc->card.pf_head);
847 return (bus_generic_attach(dev));
848 }
849
850 static int
pccard_detach(device_t dev)851 pccard_detach(device_t dev)
852 {
853 pccard_detach_card(dev);
854 pccard_device_destroy(device_get_softc(dev));
855 return (0);
856 }
857
858 static int
pccard_suspend(device_t self)859 pccard_suspend(device_t self)
860 {
861 pccard_detach_card(self);
862 return (0);
863 }
864
865 static
866 int
pccard_resume(device_t self)867 pccard_resume(device_t self)
868 {
869 return (0);
870 }
871
872 static void
pccard_print_resources(struct resource_list * rl,const char * name,int type,int count,const char * format)873 pccard_print_resources(struct resource_list *rl, const char *name, int type,
874 int count, const char *format)
875 {
876 struct resource_list_entry *rle;
877 int printed;
878 int i;
879
880 printed = 0;
881 for (i = 0; i < count; i++) {
882 rle = resource_list_find(rl, type, i);
883 if (rle != NULL) {
884 if (printed == 0)
885 printf(" %s ", name);
886 else if (printed > 0)
887 printf(",");
888 printed++;
889 printf(format, rle->start);
890 if (rle->count > 1) {
891 printf("-");
892 printf(format, rle->start + rle->count - 1);
893 }
894 } else if (i > 3) {
895 /* check the first few regardless */
896 break;
897 }
898 }
899 }
900
901 static int
pccard_print_child(device_t dev,device_t child)902 pccard_print_child(device_t dev, device_t child)
903 {
904 struct pccard_ivar *devi = PCCARD_IVAR(child);
905 struct resource_list *rl = &devi->resources;
906 int retval = 0;
907
908 retval += bus_print_child_header(dev, child);
909 retval += printf(" at");
910
911 if (devi != NULL) {
912 pccard_print_resources(rl, "port", SYS_RES_IOPORT,
913 PCCARD_NPORT, "%#lx");
914 pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
915 PCCARD_NMEM, "%#lx");
916 pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
917 "%ld");
918 pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
919 "%ld");
920 retval += printf(" function %d config %d", devi->pf->number,
921 devi->pf->cfe->number);
922 }
923
924 retval += bus_print_child_footer(dev, child);
925
926 return (retval);
927 }
928
929 static int
pccard_set_resource(device_t dev,device_t child,int type,int rid,rman_res_t start,rman_res_t count)930 pccard_set_resource(device_t dev, device_t child, int type, int rid,
931 rman_res_t start, rman_res_t count)
932 {
933 struct pccard_ivar *devi = PCCARD_IVAR(child);
934 struct resource_list *rl = &devi->resources;
935
936 if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
937 && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
938 return (EINVAL);
939 if (rid < 0)
940 return (EINVAL);
941 if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
942 return (EINVAL);
943 if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
944 return (EINVAL);
945 if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
946 return (EINVAL);
947 if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
948 return (EINVAL);
949
950 resource_list_add(rl, type, rid, start, start + count - 1, count);
951 if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
952 type, &rid, start, start + count - 1, count, 0))
953 return 0;
954 else
955 return ENOMEM;
956 }
957
958 static int
pccard_get_resource(device_t dev,device_t child,int type,int rid,rman_res_t * startp,rman_res_t * countp)959 pccard_get_resource(device_t dev, device_t child, int type, int rid,
960 rman_res_t *startp, rman_res_t *countp)
961 {
962 struct pccard_ivar *devi = PCCARD_IVAR(child);
963 struct resource_list *rl = &devi->resources;
964 struct resource_list_entry *rle;
965
966 rle = resource_list_find(rl, type, rid);
967 if (rle == NULL)
968 return (ENOENT);
969
970 if (startp != NULL)
971 *startp = rle->start;
972 if (countp != NULL)
973 *countp = rle->count;
974
975 return (0);
976 }
977
978 static void
pccard_delete_resource(device_t dev,device_t child,int type,int rid)979 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
980 {
981 struct pccard_ivar *devi = PCCARD_IVAR(child);
982 struct resource_list *rl = &devi->resources;
983 resource_list_delete(rl, type, rid);
984 }
985
986 static int
pccard_set_res_flags(device_t dev,device_t child,int type,int rid,u_long flags)987 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
988 u_long flags)
989 {
990 return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
991 rid, flags));
992 }
993
994 static int
pccard_set_memory_offset(device_t dev,device_t child,int rid,uint32_t offset,uint32_t * deltap)995 pccard_set_memory_offset(device_t dev, device_t child, int rid,
996 uint32_t offset, uint32_t *deltap)
997
998 {
999 return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
1000 offset, deltap));
1001 }
1002
1003 static void
pccard_probe_nomatch(device_t bus,device_t child)1004 pccard_probe_nomatch(device_t bus, device_t child)
1005 {
1006 struct pccard_ivar *devi = PCCARD_IVAR(child);
1007 struct pccard_function *pf = devi->pf;
1008 struct pccard_softc *sc = PCCARD_SOFTC(bus);
1009 int i;
1010
1011 device_printf(bus, "<unknown card>");
1012 printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
1013 "at function %d\n", sc->card.manufacturer, sc->card.product,
1014 pf->function, pf->number);
1015 device_printf(bus, " CIS info: ");
1016 for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
1017 printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
1018 printf("\n");
1019 return;
1020 }
1021
1022 static int
pccard_child_location_str(device_t bus,device_t child,char * buf,size_t buflen)1023 pccard_child_location_str(device_t bus, device_t child, char *buf,
1024 size_t buflen)
1025 {
1026 struct pccard_ivar *devi = PCCARD_IVAR(child);
1027 struct pccard_function *pf = devi->pf;
1028
1029 snprintf(buf, buflen, "function=%d", pf->number);
1030 return (0);
1031 }
1032
1033 static int
pccard_child_pnpinfo_str(device_t bus,device_t child,char * buf,size_t buflen)1034 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1035 size_t buflen)
1036 {
1037 struct pccard_ivar *devi = PCCARD_IVAR(child);
1038 struct pccard_function *pf = devi->pf;
1039 struct pccard_softc *sc = PCCARD_SOFTC(bus);
1040 struct sbuf sb;
1041
1042 sbuf_new(&sb, buf, buflen, SBUF_FIXEDLEN | SBUF_INCLUDENUL);
1043 sbuf_printf(&sb, "manufacturer=0x%04x product=0x%04x "
1044 "cisvendor=\"", sc->card.manufacturer, sc->card.product);
1045 devctl_safe_quote_sb(&sb, sc->card.cis1_info[0]);
1046 sbuf_printf(&sb, "\" cisproduct=\"");
1047 devctl_safe_quote_sb(&sb, sc->card.cis1_info[1]);
1048 sbuf_printf(&sb, "\" function_type=%d", pf->function);
1049 sbuf_finish(&sb);
1050 sbuf_delete(&sb);
1051
1052 return (0);
1053 }
1054
1055 static int
pccard_read_ivar(device_t bus,device_t child,int which,uintptr_t * result)1056 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
1057 {
1058 struct pccard_ivar *devi = PCCARD_IVAR(child);
1059 struct pccard_function *pf = devi->pf;
1060 struct pccard_softc *sc = PCCARD_SOFTC(bus);
1061
1062 if (!pf)
1063 panic("No pccard function pointer");
1064 switch (which) {
1065 default:
1066 return (EINVAL);
1067 case PCCARD_IVAR_FUNCE_DISK:
1068 *(uint16_t *)result = pf->pf_funce_disk_interface |
1069 (pf->pf_funce_disk_power << 8);
1070 break;
1071 case PCCARD_IVAR_ETHADDR:
1072 bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN);
1073 break;
1074 case PCCARD_IVAR_VENDOR:
1075 *(uint32_t *)result = sc->card.manufacturer;
1076 break;
1077 case PCCARD_IVAR_PRODUCT:
1078 *(uint32_t *)result = sc->card.product;
1079 break;
1080 case PCCARD_IVAR_PRODEXT:
1081 *(uint16_t *)result = sc->card.prodext;
1082 break;
1083 case PCCARD_IVAR_FUNCTION:
1084 *(uint32_t *)result = pf->function;
1085 break;
1086 case PCCARD_IVAR_FUNCTION_NUMBER:
1087 *(uint32_t *)result = pf->number;
1088 break;
1089 case PCCARD_IVAR_VENDOR_STR:
1090 *(const char **)result = sc->card.cis1_info[0];
1091 break;
1092 case PCCARD_IVAR_PRODUCT_STR:
1093 *(const char **)result = sc->card.cis1_info[1];
1094 break;
1095 case PCCARD_IVAR_CIS3_STR:
1096 *(const char **)result = sc->card.cis1_info[2];
1097 break;
1098 case PCCARD_IVAR_CIS4_STR:
1099 *(const char **)result = sc->card.cis1_info[3];
1100 break;
1101 }
1102 return (0);
1103 }
1104
1105 static void
pccard_driver_added(device_t dev,driver_t * driver)1106 pccard_driver_added(device_t dev, driver_t *driver)
1107 {
1108 struct pccard_softc *sc = PCCARD_SOFTC(dev);
1109 struct pccard_function *pf;
1110 device_t child;
1111
1112 STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1113 if (STAILQ_EMPTY(&pf->cfe_head))
1114 continue;
1115 child = pf->dev;
1116 if (device_get_state(child) != DS_NOTPRESENT)
1117 continue;
1118 pccard_probe_and_attach_child(dev, child, pf);
1119 }
1120 return;
1121 }
1122
1123 static struct resource *
pccard_alloc_resource(device_t dev,device_t child,int type,int * rid,rman_res_t start,rman_res_t end,rman_res_t count,u_int flags)1124 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1125 rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
1126 {
1127 struct pccard_ivar *dinfo;
1128 struct resource_list_entry *rle = NULL;
1129 int passthrough = (device_get_parent(child) != dev);
1130 int isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1);
1131 struct resource *r = NULL;
1132
1133 /* XXX I'm no longer sure this is right */
1134 if (passthrough) {
1135 return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1136 type, rid, start, end, count, flags));
1137 }
1138
1139 dinfo = device_get_ivars(child);
1140 rle = resource_list_find(&dinfo->resources, type, *rid);
1141
1142 if (rle == NULL && isdefault)
1143 return (NULL); /* no resource of that type/rid */
1144 if (rle == NULL || rle->res == NULL) {
1145 /* XXX Need to adjust flags */
1146 r = bus_alloc_resource(dev, type, rid, start, end,
1147 count, flags);
1148 if (r == NULL)
1149 goto bad;
1150 resource_list_add(&dinfo->resources, type, *rid,
1151 rman_get_start(r), rman_get_end(r), count);
1152 rle = resource_list_find(&dinfo->resources, type, *rid);
1153 if (!rle)
1154 goto bad;
1155 rle->res = r;
1156 }
1157 /*
1158 * If dev doesn't own the device, then we can't give this device
1159 * out.
1160 */
1161 if (rman_get_device(rle->res) != dev)
1162 return (NULL);
1163 rman_set_device(rle->res, child);
1164 if (flags & RF_ACTIVE)
1165 BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1166 return (rle->res);
1167 bad:;
1168 device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1169 return (NULL);
1170 }
1171
1172 static int
pccard_release_resource(device_t dev,device_t child,int type,int rid,struct resource * r)1173 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1174 struct resource *r)
1175 {
1176 struct pccard_ivar *dinfo;
1177 int passthrough = (device_get_parent(child) != dev);
1178 struct resource_list_entry *rle = NULL;
1179
1180 if (passthrough)
1181 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1182 type, rid, r);
1183
1184 dinfo = device_get_ivars(child);
1185
1186 rle = resource_list_find(&dinfo->resources, type, rid);
1187
1188 if (!rle) {
1189 device_printf(dev, "Allocated resource not found, "
1190 "%d %#x %#jx %#jx\n",
1191 type, rid, rman_get_start(r), rman_get_size(r));
1192 return ENOENT;
1193 }
1194 if (!rle->res) {
1195 device_printf(dev, "Allocated resource not recorded\n");
1196 return ENOENT;
1197 }
1198 /*
1199 * Deactivate the resource (since it is being released), and
1200 * assign it to the bus.
1201 */
1202 BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1203 rman_set_device(rle->res, dev);
1204 return (0);
1205 }
1206
1207 static void
pccard_child_detached(device_t parent,device_t dev)1208 pccard_child_detached(device_t parent, device_t dev)
1209 {
1210 struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1211 struct pccard_function *pf = ivar->pf;
1212
1213 pccard_function_disable(pf);
1214 }
1215
1216 static int
pccard_filter(void * arg)1217 pccard_filter(void *arg)
1218 {
1219 struct pccard_function *pf = (struct pccard_function*) arg;
1220 int reg;
1221 int doisr = 1;
1222
1223 /*
1224 * MFC cards know if they interrupted, so we have to ack the
1225 * interrupt and call the ISR. Non-MFC cards don't have these
1226 * bits, so they always get called. Many non-MFC cards have
1227 * this bit set always upon read, but some do not.
1228 *
1229 * We always ack the interrupt, even if there's no ISR
1230 * for the card. This is done on the theory that acking
1231 * the interrupt will pacify the card enough to keep an
1232 * interrupt storm from happening. Of course this won't
1233 * help in the non-MFC case.
1234 *
1235 * This has no impact for MPSAFEness of the client drivers.
1236 * We register this with whatever flags the intr_handler
1237 * was registered with. All these functions are MPSAFE.
1238 */
1239 if (pccard_mfc(pf->sc)) {
1240 reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1241 if (reg & PCCARD_CCR_STATUS_INTR)
1242 pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1243 reg & ~PCCARD_CCR_STATUS_INTR);
1244 else
1245 doisr = 0;
1246 }
1247 if (doisr) {
1248 if (pf->intr_filter != NULL)
1249 return (pf->intr_filter(pf->intr_handler_arg));
1250 return (FILTER_SCHEDULE_THREAD);
1251 }
1252 return (FILTER_STRAY);
1253 }
1254
1255 static void
pccard_intr(void * arg)1256 pccard_intr(void *arg)
1257 {
1258 struct pccard_function *pf = (struct pccard_function*) arg;
1259
1260 pf->intr_handler(pf->intr_handler_arg);
1261 }
1262
1263 static int
pccard_setup_intr(device_t dev,device_t child,struct resource * irq,int flags,driver_filter_t * filt,driver_intr_t * intr,void * arg,void ** cookiep)1264 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1265 int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg,
1266 void **cookiep)
1267 {
1268 struct pccard_softc *sc = PCCARD_SOFTC(dev);
1269 struct pccard_ivar *ivar = PCCARD_IVAR(child);
1270 struct pccard_function *pf = ivar->pf;
1271 int err;
1272
1273 if (pf->intr_filter != NULL || pf->intr_handler != NULL)
1274 panic("Only one interrupt handler per function allowed");
1275 err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter,
1276 intr ? pccard_intr : NULL, pf, cookiep);
1277 if (err != 0)
1278 return (err);
1279 pf->intr_filter = filt;
1280 pf->intr_handler = intr;
1281 pf->intr_handler_arg = arg;
1282 pf->intr_handler_cookie = *cookiep;
1283 if (pccard_mfc(sc)) {
1284 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1285 pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1286 PCCARD_CCR_OPTION_IREQ_ENABLE);
1287 }
1288 return (0);
1289 }
1290
1291 static int
pccard_teardown_intr(device_t dev,device_t child,struct resource * r,void * cookie)1292 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1293 void *cookie)
1294 {
1295 struct pccard_softc *sc = PCCARD_SOFTC(dev);
1296 struct pccard_ivar *ivar = PCCARD_IVAR(child);
1297 struct pccard_function *pf = ivar->pf;
1298 int ret;
1299
1300 if (pccard_mfc(sc)) {
1301 pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1302 pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1303 ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1304 }
1305 ret = bus_generic_teardown_intr(dev, child, r, cookie);
1306 if (ret == 0) {
1307 pf->intr_handler = NULL;
1308 pf->intr_handler_arg = NULL;
1309 pf->intr_handler_cookie = NULL;
1310 }
1311
1312 return (ret);
1313 }
1314
1315 static int
pccard_activate_resource(device_t brdev,device_t child,int type,int rid,struct resource * r)1316 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1317 struct resource *r)
1318 {
1319 struct pccard_ivar *ivar = PCCARD_IVAR(child);
1320 struct pccard_function *pf = ivar->pf;
1321
1322 switch(type) {
1323 case SYS_RES_IOPORT:
1324 /*
1325 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1326 * card.
1327 */
1328 if (pccard_mfc(pf->sc))
1329 pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1330 rman_get_size(r));
1331 break;
1332 default:
1333 break;
1334 }
1335 return (bus_generic_activate_resource(brdev, child, type, rid, r));
1336 }
1337
1338 static int
pccard_deactivate_resource(device_t brdev,device_t child,int type,int rid,struct resource * r)1339 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1340 int rid, struct resource *r)
1341 {
1342 /* XXX undo pccard_activate_resource? XXX */
1343 return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1344 }
1345
1346 static int
pccard_attr_read_impl(device_t brdev,device_t child,uint32_t offset,uint8_t * val)1347 pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset,
1348 uint8_t *val)
1349 {
1350 struct pccard_ivar *devi = PCCARD_IVAR(child);
1351 struct pccard_function *pf = devi->pf;
1352
1353 /*
1354 * Optimization. Most of the time, devices want to access
1355 * the same page of the attribute memory that the CCR is in.
1356 * We take advantage of this fact here.
1357 */
1358 if (offset / PCCARD_MEM_PAGE_SIZE ==
1359 pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1360 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
1361 offset % PCCARD_MEM_PAGE_SIZE);
1362 else {
1363 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1364 &offset);
1365 *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset);
1366 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1367 &offset);
1368 }
1369 return 0;
1370 }
1371
1372 static int
pccard_attr_write_impl(device_t brdev,device_t child,uint32_t offset,uint8_t val)1373 pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset,
1374 uint8_t val)
1375 {
1376 struct pccard_ivar *devi = PCCARD_IVAR(child);
1377 struct pccard_function *pf = devi->pf;
1378
1379 /*
1380 * Optimization. Most of the time, devices want to access
1381 * the same page of the attribute memory that the CCR is in.
1382 * We take advantage of this fact here.
1383 */
1384 if (offset / PCCARD_MEM_PAGE_SIZE ==
1385 pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1386 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
1387 offset % PCCARD_MEM_PAGE_SIZE, val);
1388 else {
1389 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1390 &offset);
1391 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val);
1392 CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1393 &offset);
1394 }
1395
1396 return 0;
1397 }
1398
1399 static int
pccard_ccr_read_impl(device_t brdev,device_t child,uint32_t offset,uint8_t * val)1400 pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset,
1401 uint8_t *val)
1402 {
1403 struct pccard_ivar *devi = PCCARD_IVAR(child);
1404
1405 *val = pccard_ccr_read(devi->pf, offset);
1406 DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset,
1407 devi->pf->pf_ccr_offset, *val));
1408 return 0;
1409 }
1410
1411 static int
pccard_ccr_write_impl(device_t brdev,device_t child,uint32_t offset,uint8_t val)1412 pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset,
1413 uint8_t val)
1414 {
1415 struct pccard_ivar *devi = PCCARD_IVAR(child);
1416 struct pccard_function *pf = devi->pf;
1417
1418 /*
1419 * Can't use pccard_ccr_write since client drivers may access
1420 * registers not contained in the 'mask' if they are non-standard.
1421 */
1422 DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset,
1423 devi->pf->pf_ccr_offset));
1424 bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset,
1425 val);
1426 return 0;
1427 }
1428
1429
1430 static device_method_t pccard_methods[] = {
1431 /* Device interface */
1432 DEVMETHOD(device_probe, pccard_probe),
1433 DEVMETHOD(device_attach, pccard_attach),
1434 DEVMETHOD(device_detach, pccard_detach),
1435 DEVMETHOD(device_shutdown, bus_generic_shutdown),
1436 DEVMETHOD(device_suspend, pccard_suspend),
1437 DEVMETHOD(device_resume, pccard_resume),
1438
1439 /* Bus interface */
1440 DEVMETHOD(bus_print_child, pccard_print_child),
1441 DEVMETHOD(bus_driver_added, pccard_driver_added),
1442 DEVMETHOD(bus_child_detached, pccard_child_detached),
1443 DEVMETHOD(bus_alloc_resource, pccard_alloc_resource),
1444 DEVMETHOD(bus_release_resource, pccard_release_resource),
1445 DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1446 DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1447 DEVMETHOD(bus_setup_intr, pccard_setup_intr),
1448 DEVMETHOD(bus_teardown_intr, pccard_teardown_intr),
1449 DEVMETHOD(bus_set_resource, pccard_set_resource),
1450 DEVMETHOD(bus_get_resource, pccard_get_resource),
1451 DEVMETHOD(bus_delete_resource, pccard_delete_resource),
1452 DEVMETHOD(bus_probe_nomatch, pccard_probe_nomatch),
1453 DEVMETHOD(bus_read_ivar, pccard_read_ivar),
1454 DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1455 DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1456
1457 /* Card Interface */
1458 DEVMETHOD(card_set_res_flags, pccard_set_res_flags),
1459 DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1460 DEVMETHOD(card_attach_card, pccard_attach_card),
1461 DEVMETHOD(card_detach_card, pccard_detach_card),
1462 DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1463 DEVMETHOD(card_cis_scan, pccard_scan_cis),
1464 DEVMETHOD(card_attr_read, pccard_attr_read_impl),
1465 DEVMETHOD(card_attr_write, pccard_attr_write_impl),
1466 DEVMETHOD(card_ccr_read, pccard_ccr_read_impl),
1467 DEVMETHOD(card_ccr_write, pccard_ccr_write_impl),
1468
1469 { 0, 0 }
1470 };
1471
1472 static driver_t pccard_driver = {
1473 "pccard",
1474 pccard_methods,
1475 sizeof(struct pccard_softc)
1476 };
1477
1478 devclass_t pccard_devclass;
1479
1480 /* Maybe we need to have a slot device? */
1481 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1482 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1483 MODULE_VERSION(pccard, 1);
1484