xref: /dragonfly/sys/bus/pccard/pccard.c (revision 9bb2a92d)
1 /*	$NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $	*/
2 /* $FreeBSD: src/sys/dev/pccard/pccard.c,v 1.70 2002/11/14 14:02:32 mux Exp $ */
3 /* $DragonFly: src/sys/bus/pccard/pccard.c,v 1.10 2004/02/13 22:12:33 joerg Exp $ */
4 
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/param.h>
35 #include <sys/systm.h>
36 #include <sys/malloc.h>
37 #include <sys/module.h>
38 #include <sys/kernel.h>
39 #include <sys/queue.h>
40 #include <sys/sysctl.h>
41 #include <sys/types.h>
42 
43 #include <sys/bus.h>
44 #include <machine/bus.h>
45 #include <sys/rman.h>
46 #include <machine/resource.h>
47 
48 #include <net/ethernet.h>
49 
50 #include <bus/pccard/pccardreg.h>
51 #include <bus/pccard/pccardvar.h>
52 
53 #include "power_if.h"
54 #include "card_if.h"
55 
56 #define PCCARDDEBUG
57 
58 /* sysctl vars */
59 SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
60 
61 int	pccard_debug = 0;
62 TUNABLE_INT("hw.pccard.debug", &pccard_debug);
63 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
64     &pccard_debug, 0,
65   "pccard debug");
66 
67 int	pccard_cis_debug = 0;
68 TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
69 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
70     &pccard_cis_debug, 0, "pccard CIS debug");
71 
72 #ifdef PCCARDDEBUG
73 #define	DPRINTF(arg) if (pccard_debug) printf arg
74 #define	DEVPRINTF(arg) if (pccard_debug) device_printf arg
75 #define PRVERBOSE(arg) printf arg
76 #define DEVPRVERBOSE(arg) device_printf arg
77 #else
78 #define	DPRINTF(arg)
79 #define	DEVPRINTF(arg)
80 #define PRVERBOSE(arg) if (bootverbose) printf arg
81 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
82 #endif
83 
84 static int	pccard_ccr_read(struct pccard_function *pf, int ccr);
85 static void	pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
86 static int	pccard_attach_card(device_t dev);
87 static int	pccard_detach_card(device_t dev);
88 static int	pccard_card_gettype(device_t dev, int *type);
89 static void	pccard_function_init(struct pccard_function *pf);
90 static void	pccard_function_free(struct pccard_function *pf);
91 static int	pccard_function_enable(struct pccard_function *pf);
92 static void	pccard_function_disable(struct pccard_function *pf);
93 static int	pccard_compat_do_probe(device_t bus, device_t dev);
94 static int	pccard_compat_do_attach(device_t bus, device_t dev);
95 static int	pccard_add_children(device_t dev, int busno);
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, u_long start, u_long count);
104 static int	pccard_get_resource(device_t dev, device_t child, int type,
105 		    int rid, u_long *startp, u_long *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_int32_t flags);
110 static int	pccard_set_memory_offset(device_t dev, device_t child, int rid,
111 		    u_int32_t offset, u_int32_t *deltap);
112 static void	pccard_probe_nomatch(device_t cbdev, device_t child);
113 static int	pccard_read_ivar(device_t bus, device_t child, int which,
114 				 uintptr_t *result);
115 static void	pccard_driver_added(device_t dev, driver_t *driver);
116 static struct resource *pccard_alloc_resource(device_t dev,
117 		    device_t child, int type, int *rid, u_long start,
118 		    u_long end, u_long count, u_int flags);
119 static int	pccard_release_resource(device_t dev, device_t child, int type,
120 		    int rid, struct resource *r);
121 static void	pccard_child_detached(device_t parent, device_t dev);
122 static void	pccard_intr(void *arg);
123 static int	pccard_setup_intr(device_t dev, device_t child,
124 		    struct resource *irq, int flags, driver_intr_t *intr,
125 		    void *arg, void **cookiep);
126 static int	pccard_teardown_intr(device_t dev, device_t child,
127 		    struct resource *r, void *cookie);
128 
129 static const struct pccard_product *
130 pccard_do_product_lookup(device_t bus, device_t dev,
131 			 const struct pccard_product *tab, size_t ent_size,
132 			 pccard_product_match_fn matchfn);
133 
134 
135 static int
136 pccard_ccr_read(struct pccard_function *pf, int ccr)
137 {
138 	return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
139 	    pf->pf_ccr_offset + ccr));
140 }
141 
142 static void
143 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
144 {
145 	if ((pf->ccr_mask) & (1 << (ccr / 2))) {
146 		bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
147 		    pf->pf_ccr_offset + ccr, val);
148 	}
149 }
150 
151 static int
152 pccard_attach_card(device_t dev)
153 {
154 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
155 	struct pccard_function *pf;
156 	struct pccard_ivar *ivar;
157 	device_t child;
158 	int i;
159 
160 	/*
161 	 * this is here so that when socket_enable calls gettype, trt happens
162 	 */
163 	STAILQ_INIT(&sc->card.pf_head);
164 
165 	DEVPRINTF((dev, "chip_socket_enable\n"));
166 	POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
167 
168 	DEVPRINTF((dev, "read_cis\n"));
169 	pccard_read_cis(sc);
170 
171 	DEVPRINTF((dev, "check_cis_quirks\n"));
172 	pccard_check_cis_quirks(dev);
173 
174 	/*
175 	 * bail now if the card has no functions, or if there was an error in
176 	 * the cis.
177 	 */
178 
179 	if (sc->card.error) {
180 		device_printf(dev, "CARD ERROR!\n");
181 		return (1);
182 	}
183 	if (STAILQ_EMPTY(&sc->card.pf_head)) {
184 		device_printf(dev, "Card has no functions!\n");
185 		return (1);
186 	}
187 
188 	if (bootverbose || pccard_debug)
189 		pccard_print_cis(dev);
190 
191 	DEVPRINTF((dev, "functions scanning\n"));
192 	i = -1;
193 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
194 		i++;
195 		if (STAILQ_EMPTY(&pf->cfe_head)) {
196 			device_printf(dev,
197 			    "Function %d has no config entries.!\n", i);
198 			continue;
199 		}
200 		pf->sc = sc;
201 		pf->cfe = NULL;
202 		pf->dev = NULL;
203 	}
204 	DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
205 	    pccard_mfc(sc)));
206 
207 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
208 		if (STAILQ_EMPTY(&pf->cfe_head))
209 			continue;
210 		/*
211 		 * In NetBSD, the drivers are responsible for activating
212 		 * each function of a card.  I think that in FreeBSD we
213 		 * want to activate them enough for the usual bus_*_resource
214 		 * routines will do the right thing.  This many mean a
215 		 * departure from the current NetBSD model.
216 		 *
217 		 * This seems to work well in practice for most cards.
218 		 * However, there are two cases that are problematic.
219 		 * If a driver wishes to pick and chose which config
220 		 * entry to use, then this method falls down.  These
221 		 * are usually older cards.  In addition, there are
222 		 * some cards that have multiple hardware units on the
223 		 * cards, but presents only one CIS chain.  These cards
224 		 * are combination cards, but only one of these units
225 		 * can be on at a time.
226 		 */
227 		ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
228 		    M_WAITOK | M_ZERO);
229 		child = device_add_child(dev, NULL, -1);
230 		device_set_ivars(child, ivar);
231 		ivar->fcn = pf;
232 		pf->dev = child;
233 		/*
234 		 * XXX We might want to move the next two lines into
235 		 * XXX the pccard interface layer.  For the moment, this
236 		 * XXX is OK, but some drivers want to pick the config
237 		 * XXX entry to use as well as some address tweaks (mostly
238 		 * XXX due to bugs in decode logic that makes some
239 		 * XXX addresses illegal or broken).
240 		 */
241 		pccard_function_init(pf);
242 		if (sc->sc_enabled_count == 0)
243 			POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
244 		if (pccard_function_enable(pf) == 0 &&
245 		    device_probe_and_attach(child) == 0) {
246 			DEVPRINTF((sc->dev, "function %d CCR at %d "
247 			    "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
248 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
249 			    pccard_ccr_read(pf, 0x00),
250 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
251 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
252 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
253 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
254 		} else {
255 			if (pf->cfe != NULL)
256 				pccard_function_disable(pf);
257 		}
258 	}
259 	return (0);
260 }
261 
262 static int
263 pccard_detach_card(device_t dev)
264 {
265 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
266 	struct pccard_function *pf;
267 	struct pccard_config_entry *cfe;
268 
269 	/*
270 	 * We are running on either the PCCARD socket's event thread
271 	 * or in user context detaching a device by user request.
272 	 */
273 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
274 		int state = device_get_state(pf->dev);
275 
276 		if (state == DS_ATTACHED || state == DS_BUSY)
277 			device_detach(pf->dev);
278 		if (pf->cfe != NULL)
279 			pccard_function_disable(pf);
280 		pccard_function_free(pf);
281 		device_delete_child(dev, pf->dev);
282 	}
283 	if (sc->sc_enabled_count == 0)
284 		POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
285 
286 	while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
287 		while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
288 			STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
289 			free(cfe, M_DEVBUF);
290 		}
291 		STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
292 		free(pf, M_DEVBUF);
293 	}
294 	return (0);
295 }
296 
297 static const struct pccard_product *
298 pccard_do_product_lookup(device_t bus, device_t dev,
299 			 const struct pccard_product *tab, size_t ent_size,
300 			 pccard_product_match_fn matchfn)
301 {
302 	const struct pccard_product *ent;
303 	int matches;
304 	u_int32_t fcn;
305 	u_int32_t vendor;
306 	u_int32_t prod;
307 	const char *vendorstr;
308 	const char *prodstr;
309 
310 #ifdef DIAGNOSTIC
311 	if (sizeof *ent > ent_size)
312 		panic("pccard_product_lookup: bogus ent_size %ld",
313 		    (long) ent_size);
314 #endif
315 	vendor = pccard_get_vendor(dev);
316 	prod = pccard_get_product(dev);
317 	fcn = pccard_get_function_number(dev);
318 	vendorstr = pccard_get_vendor_str(dev);
319 	prodstr = pccard_get_product_str(dev);
320 	for (ent = tab; ent->pp_name != NULL; ent =
321 	    (const struct pccard_product *) ((const char *) ent + ent_size)) {
322 		matches = 1;
323 		if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
324 		    ent->pp_product == PCCARD_VENDOR_ANY &&
325 		    ent->pp_cis[0] == NULL &&
326 		    ent->pp_cis[1] == NULL) {
327 			device_printf(dev,
328 			    "Total wildcard entry ignored for %s\n",
329 			    ent->pp_name);
330 			continue;
331 		}
332 		if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
333 		    vendor != ent->pp_vendor)
334 			matches = 0;
335 		if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
336 		    prod != ent->pp_product)
337 			matches = 0;
338 		if (matches && fcn != ent->pp_expfunc)
339 			matches = 0;
340 		if (matches && ent->pp_cis[0] &&
341 		    strcmp(ent->pp_cis[0], vendorstr) != 0)
342 			matches = 0;
343 		if (matches && ent->pp_cis[1] &&
344 		    strcmp(ent->pp_cis[1], prodstr) != 0)
345 			matches = 0;
346 		/* XXX need to match cis[2] and cis[3] also XXX */
347 		if (matchfn != NULL)
348 			matches = (*matchfn)(dev, ent, matches);
349 		if (matches)
350 			return (ent);
351 	}
352 	return (NULL);
353 }
354 
355 static int
356 pccard_card_gettype(device_t dev, int *type)
357 {
358 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
359 	struct pccard_function *pf;
360 
361 	/*
362 	 * set the iftype to memory if this card has no functions (not yet
363 	 * probed), or only one function, and that is not initialized yet or
364 	 * that is memory.
365 	 */
366 	pf = STAILQ_FIRST(&sc->card.pf_head);
367 	if (pf == NULL ||
368 	    (STAILQ_NEXT(pf, pf_list) == NULL &&
369 	    (pf->cfe == NULL || pf->cfe->iftype == PCCARD_IFTYPE_MEMORY)))
370 		*type = PCCARD_IFTYPE_MEMORY;
371 	else
372 		*type = PCCARD_IFTYPE_IO;
373 	return (0);
374 }
375 
376 /*
377  * Initialize a PCCARD function.  May be called as long as the function is
378  * disabled.
379  *
380  * Note: pccard_function_init should not keep resources allocated.  It should
381  * only set them up ala isa pnp, set the values in the rl lists, and return.
382  * Any resource held after pccard_function_init is called is a bug.  However,
383  * the bus routines to get the resources also assume that pccard_function_init
384  * does this, so they need to be fixed too.
385  */
386 static void
387 pccard_function_init(struct pccard_function *pf)
388 {
389 	struct pccard_config_entry *cfe;
390 	int i;
391 	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
392 	struct resource_list *rl = &devi->resources;
393 	struct resource_list_entry *rle;
394 	struct resource *r = 0;
395 	device_t bus;
396 	int start;
397 	int end;
398 	int spaces;
399 
400 	if (pf->pf_flags & PFF_ENABLED) {
401 		printf("pccard_function_init: function is enabled");
402 		return;
403 	}
404 	bus = device_get_parent(pf->dev);
405 	/* Remember which configuration entry we are using. */
406 	STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
407 		for (i = 0; i < cfe->num_iospace; i++)
408 			cfe->iores[i] = NULL;
409 		cfe->irqres = NULL;
410 		spaces = 0;
411 		for (i = 0; i < cfe->num_iospace; i++) {
412 			start = cfe->iospace[i].start;
413 			if (start)
414 				end = start + cfe->iospace[i].length - 1;
415 			else
416 				end = ~0;
417 			cfe->iorid[i] = i;
418 			DEVPRINTF((bus, "I/O rid %d start %x end %x\n",
419 			    i, start, end));
420 			r = cfe->iores[i] = bus_alloc_resource(bus,
421 			    SYS_RES_IOPORT, &cfe->iorid[i], start, end,
422 			    cfe->iospace[i].length,
423 			    rman_make_alignment_flags(cfe->iospace[i].length));
424 			if (cfe->iores[i] == NULL)
425 				goto not_this_one;
426 			resource_list_add(rl, SYS_RES_IOPORT, cfe->iorid[i],
427 			    rman_get_start(r), rman_get_end(r),
428 			    cfe->iospace[i].length);
429 			rle = resource_list_find(rl, SYS_RES_IOPORT,
430 			    cfe->iorid[i]);
431 			rle->res = r;
432 			spaces++;
433 		}
434 		if (cfe->num_memspace > 0) {
435 			/*
436 			 * Not implement yet, Fix me.
437 			 */
438 			DEVPRINTF((bus, "Memory space not yet implemented.\n"));
439 		}
440 		if (spaces == 0) {
441 			DEVPRINTF((bus, "Neither memory nor I/O mampped\n"));
442 			goto not_this_one;
443 		}
444 		if (cfe->irqmask) {
445 			cfe->irqrid = 0;
446 			r = cfe->irqres = bus_alloc_resource(bus, SYS_RES_IRQ,
447 			    &cfe->irqrid, 0, ~0, 1, 0);
448 			if (cfe->irqres == NULL)
449 				goto not_this_one;
450 			resource_list_add(rl, SYS_RES_IRQ, cfe->irqrid,
451 			    rman_get_start(r), rman_get_end(r), 1);
452 			rle = resource_list_find(rl, SYS_RES_IRQ,
453 			    cfe->irqrid);
454 			rle->res = r;
455 		}
456 		/* If we get to here, we've allocated all we need */
457 		pf->cfe = cfe;
458 		break;
459 	    not_this_one:;
460 		DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
461 		    cfe->number));
462 		/*
463 		 * Release resources that we partially allocated
464 		 * from this config entry.
465 		 */
466 		for (i = 0; i < cfe->num_iospace; i++) {
467 			if (cfe->iores[i] != NULL) {
468 				bus_release_resource(bus, SYS_RES_IOPORT,
469 				    cfe->iorid[i], cfe->iores[i]);
470 				rle = resource_list_find(rl, SYS_RES_IOPORT,
471 				    cfe->iorid[i]);
472 				rle->res = NULL;
473 				resource_list_delete(rl, SYS_RES_IOPORT,
474 				    cfe->iorid[i]);
475 			}
476 			cfe->iores[i] = NULL;
477 		}
478 		if (cfe->irqmask && cfe->irqres != NULL) {
479 			bus_release_resource(bus, SYS_RES_IRQ,
480 			    cfe->irqrid, cfe->irqres);
481 			rle = resource_list_find(rl, SYS_RES_IRQ,
482 			    cfe->irqrid);
483 			rle->res = NULL;
484 			resource_list_delete(rl, SYS_RES_IRQ, cfe->irqrid);
485 			cfe->irqres = NULL;
486 		}
487 	}
488 }
489 
490 /*
491  * Free resources allocated by pccard_function_init(), May be called as long
492  * as the function is disabled.
493  *
494  * NOTE: This function should be unnecessary.  pccard_function_init should
495  * never keep resources initialized.
496  */
497 static void
498 pccard_function_free(struct pccard_function *pf)
499 {
500 	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
501 	struct resource_list_entry *rle;
502 
503 	if (pf->pf_flags & PFF_ENABLED) {
504 		printf("pccard_function_init: function is enabled");
505 		return;
506 	}
507 
508 	SLIST_FOREACH(rle, &devi->resources, link) {
509 		if (rle->res) {
510 			if (rle->res->r_dev != pf->sc->dev)
511 				device_printf(pf->sc->dev,
512 				    "function_free: Resource still owned by "
513 				    "child, oops. "
514 				    "(type=%d, rid=%d, addr=%lx)\n",
515 				    rle->type, rle->rid,
516 				    rman_get_start(rle->res));
517 			BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
518 			    rle->res->r_dev, rle->type, rle->rid, rle->res);
519 			rle->res = NULL;
520 		}
521 	}
522 	resource_list_free(&devi->resources);
523 }
524 
525 /* Enable a PCCARD function */
526 static int
527 pccard_function_enable(struct pccard_function *pf)
528 {
529 	struct pccard_function *tmp;
530 	int reg;
531 	device_t dev = pf->sc->dev;
532 
533 	if (pf->cfe == NULL) {
534 		DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
535 		return (ENOMEM);
536 	}
537 
538 	/*
539 	 * Increase the reference count on the socket, enabling power, if
540 	 * necessary.
541 	 */
542 	pf->sc->sc_enabled_count++;
543 
544 	if (pf->pf_flags & PFF_ENABLED) {
545 		/*
546 		 * Don't do anything if we're already enabled.
547 		 */
548 		return (0);
549 	}
550 
551 	/*
552 	 * it's possible for different functions' CCRs to be in the same
553 	 * underlying page.  Check for that.
554 	 */
555 	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
556 		if ((tmp->pf_flags & PFF_ENABLED) &&
557 		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
558 		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
559 		    (tmp->ccr_base - tmp->pf_ccr_offset +
560 		    tmp->pf_ccr_realsize))) {
561 			pf->pf_ccrt = tmp->pf_ccrt;
562 			pf->pf_ccrh = tmp->pf_ccrh;
563 			pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
564 
565 			/*
566 			 * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
567 			 * tmp->ccr_base) + pf->ccr_base;
568 			 */
569 			/* pf->pf_ccr_offset =
570 			    (tmp->pf_ccr_offset + pf->ccr_base) -
571 			    tmp->ccr_base; */
572 			pf->pf_ccr_window = tmp->pf_ccr_window;
573 			break;
574 		}
575 	}
576 	if (tmp == NULL) {
577 		pf->ccr_rid = 0;
578 		pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
579 		    &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
580 		if (!pf->ccr_res)
581 			goto bad;
582 		DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
583 		    rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
584 		    pf->ccr_base));
585 		CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
586 		    pf->ccr_rid, PCCARD_A_MEM_ATTR);
587 		CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
588 		    pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
589 		pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
590 		pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
591 		pf->pf_ccr_realsize = 1;
592 	}
593 
594 	reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
595 	reg |= PCCARD_CCR_OPTION_LEVIREQ;
596 	if (pccard_mfc(pf->sc)) {
597 		reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
598 			PCCARD_CCR_OPTION_ADDR_DECODE);
599 		/* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
600 	}
601 	pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
602 
603 	reg = 0;
604 	if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
605 		reg |= PCCARD_CCR_STATUS_IOIS8;
606 	if (pf->cfe->flags & PCCARD_CFE_AUDIO)
607 		reg |= PCCARD_CCR_STATUS_AUDIO;
608 	pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
609 
610 	pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
611 
612 	if (pccard_mfc(pf->sc)) {
613 		long tmp, iosize;
614 
615 		tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
616 		/* round up to nearest (2^n)-1 */
617 		for (iosize = 1; iosize < tmp; iosize <<= 1)
618 			;
619 		iosize--;
620 
621 		pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
622 				 pf->pf_mfc_iobase & 0xff);
623 		pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
624 				 (pf->pf_mfc_iobase >> 8) & 0xff);
625 		pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
626 		pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
627 
628 		pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
629 	}
630 
631 #ifdef PCCARDDEBUG
632 	if (pccard_debug) {
633 		STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
634 			device_printf(tmp->sc->dev,
635 			    "function %d CCR at %d offset %x: "
636 			    "%x %x %x %x, %x %x %x %x, %x\n",
637 			    tmp->number, tmp->pf_ccr_window,
638 			    tmp->pf_ccr_offset,
639 			    pccard_ccr_read(tmp, 0x00),
640 			    pccard_ccr_read(tmp, 0x02),
641 			    pccard_ccr_read(tmp, 0x04),
642 			    pccard_ccr_read(tmp, 0x06),
643 			    pccard_ccr_read(tmp, 0x0A),
644 			    pccard_ccr_read(tmp, 0x0C),
645 			    pccard_ccr_read(tmp, 0x0E),
646 			    pccard_ccr_read(tmp, 0x10),
647 			    pccard_ccr_read(tmp, 0x12));
648 		}
649 	}
650 #endif
651 	pf->pf_flags |= PFF_ENABLED;
652 	return (0);
653 
654  bad:
655 	/*
656 	 * Decrement the reference count, and power down the socket, if
657 	 * necessary.
658 	 */
659 	pf->sc->sc_enabled_count--;
660 	DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
661 
662 	return (1);
663 }
664 
665 /* Disable PCCARD function. */
666 static void
667 pccard_function_disable(struct pccard_function *pf)
668 {
669 	struct pccard_function *tmp;
670 	device_t dev = pf->sc->dev;
671 
672 	if (pf->cfe == NULL)
673 		panic("pccard_function_disable: function not initialized");
674 
675 	if ((pf->pf_flags & PFF_ENABLED) == 0) {
676 		/*
677 		 * Don't do anything if we're already disabled.
678 		 */
679 		return;
680 	}
681 
682 	if (pf->intr_handler != NULL) {
683 		struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
684 		struct resource_list_entry *rle =
685 		    resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
686 		BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
687 		    pf->intr_handler_cookie);
688 	}
689 
690 	/*
691 	 * it's possible for different functions' CCRs to be in the same
692 	 * underlying page.  Check for that.  Note we mark us as disabled
693 	 * first to avoid matching ourself.
694 	 */
695 
696 	pf->pf_flags &= ~PFF_ENABLED;
697 	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
698 		if ((tmp->pf_flags & PFF_ENABLED) &&
699 		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
700 		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
701 		    (tmp->ccr_base - tmp->pf_ccr_offset +
702 		    tmp->pf_ccr_realsize)))
703 			break;
704 	}
705 
706 	/* Not used by anyone else; unmap the CCR. */
707 	if (tmp == NULL) {
708 		bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
709 		    pf->ccr_res);
710 		pf->ccr_res = NULL;
711 	}
712 
713 	/*
714 	 * Decrement the reference count, and power down the socket, if
715 	 * necessary.
716 	 */
717 	pf->sc->sc_enabled_count--;
718 }
719 
720 /*
721  * simulate the old "probe" routine.  In the new world order, the driver
722  * needs to grab devices while in the old they were assigned to the device by
723  * the pccardd process.  These symbols are exported to the upper layers.
724  */
725 static int
726 pccard_compat_do_probe(device_t bus, device_t dev)
727 {
728 	return (CARD_COMPAT_MATCH(dev));
729 }
730 
731 static int
732 pccard_compat_do_attach(device_t bus, device_t dev)
733 {
734 	int err;
735 
736 	err = CARD_COMPAT_PROBE(dev);
737 	if (err == 0)
738 		err = CARD_COMPAT_ATTACH(dev);
739 	return (err);
740 }
741 
742 #define PCCARD_NPORT	2
743 #define PCCARD_NMEM	5
744 #define PCCARD_NIRQ	1
745 #define PCCARD_NDRQ	0
746 
747 static int
748 pccard_add_children(device_t dev, int busno)
749 {
750 	/* Call parent to scan for any current children */
751 	return (0);
752 }
753 
754 static int
755 pccard_probe(device_t dev)
756 {
757 	device_set_desc(dev, "16-bit PCCard bus");
758 	return (pccard_add_children(dev, device_get_unit(dev)));
759 }
760 
761 static int
762 pccard_attach(device_t dev)
763 {
764 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
765 
766 	sc->dev = dev;
767 	sc->sc_enabled_count = 0;
768 	return (bus_generic_attach(dev));
769 }
770 
771 static int
772 pccard_detach(device_t dev)
773 {
774 	pccard_detach_card(dev);
775 	return 0;
776 }
777 
778 static int
779 pccard_suspend(device_t self)
780 {
781 	pccard_detach_card(self);
782 	return (0);
783 }
784 
785 static int
786 pccard_resume(device_t self)
787 {
788 	return (0);
789 }
790 
791 static void
792 pccard_print_resources(struct resource_list *rl, const char *name, int type,
793     int count, const char *format)
794 {
795 	struct resource_list_entry *rle;
796 	int printed;
797 	int i;
798 
799 	printed = 0;
800 	for (i = 0; i < count; i++) {
801 		rle = resource_list_find(rl, type, i);
802 		if (rle != NULL) {
803 			if (printed == 0)
804 				printf(" %s ", name);
805 			else if (printed > 0)
806 				printf(",");
807 			printed++;
808 			printf(format, rle->start);
809 			if (rle->count > 1) {
810 				printf("-");
811 				printf(format, rle->start + rle->count - 1);
812 			}
813 		} else if (i > 3) {
814 			/* check the first few regardless */
815 			break;
816 		}
817 	}
818 }
819 
820 static int
821 pccard_print_child(device_t dev, device_t child)
822 {
823 	struct pccard_ivar *devi = PCCARD_IVAR(child);
824 	struct resource_list *rl = &devi->resources;
825 	int retval = 0;
826 
827 	retval += bus_print_child_header(dev, child);
828 	retval += printf(" at");
829 
830 	if (devi != NULL) {
831 		pccard_print_resources(rl, "port", SYS_RES_IOPORT,
832 		    PCCARD_NPORT, "%#lx");
833 		pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
834 		    PCCARD_NMEM, "%#lx");
835 		pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
836 		    "%ld");
837 		pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
838 		    "%ld");
839 		retval += printf(" function %d config %d", devi->fcn->number,
840 		    devi->fcn->cfe->number);
841 	}
842 
843 	retval += bus_print_child_footer(dev, child);
844 
845 	return (retval);
846 }
847 
848 static int
849 pccard_set_resource(device_t dev, device_t child, int type, int rid,
850 		 u_long start, u_long count)
851 {
852 	struct pccard_ivar *devi = PCCARD_IVAR(child);
853 	struct resource_list *rl = &devi->resources;
854 
855 	if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
856 	    && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
857 		return (EINVAL);
858 	if (rid < 0)
859 		return (EINVAL);
860 	if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
861 		return (EINVAL);
862 	if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
863 		return (EINVAL);
864 	if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
865 		return (EINVAL);
866 	if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
867 		return (EINVAL);
868 
869 	resource_list_add(rl, type, rid, start, start + count - 1, count);
870 	if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
871 	    type, &rid, start, start + count - 1, count, 0))
872 		return 0;
873 	else
874 		return ENOMEM;
875 }
876 
877 static int
878 pccard_get_resource(device_t dev, device_t child, int type, int rid,
879     u_long *startp, u_long *countp)
880 {
881 	struct pccard_ivar *devi = PCCARD_IVAR(child);
882 	struct resource_list *rl = &devi->resources;
883 	struct resource_list_entry *rle;
884 
885 	rle = resource_list_find(rl, type, rid);
886 	if (rle == NULL)
887 		return (ENOENT);
888 
889 	if (startp != NULL)
890 		*startp = rle->start;
891 	if (countp != NULL)
892 		*countp = rle->count;
893 
894 	return (0);
895 }
896 
897 static void
898 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
899 {
900 	struct pccard_ivar *devi = PCCARD_IVAR(child);
901 	struct resource_list *rl = &devi->resources;
902 	resource_list_delete(rl, type, rid);
903 }
904 
905 static int
906 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
907     u_int32_t flags)
908 {
909 	return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
910 	    rid, flags));
911 }
912 
913 static int
914 pccard_set_memory_offset(device_t dev, device_t child, int rid,
915     u_int32_t offset, u_int32_t *deltap)
916 
917 {
918 	return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
919 	    offset, deltap));
920 }
921 
922 static void
923 pccard_probe_nomatch(device_t bus, device_t child)
924 {
925 	struct pccard_ivar *devi = PCCARD_IVAR(child);
926 	struct pccard_function *func = devi->fcn;
927 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
928 
929 	device_printf(bus, "<unknown card>");
930 	printf(" (manufacturer=0x%04x, product=0x%04x) at function %d\n",
931 	  sc->card.manufacturer, sc->card.product, func->number);
932 	device_printf(bus, "   CIS info: %s, %s, %s\n", sc->card.cis1_info[0],
933 	  sc->card.cis1_info[1], sc->card.cis1_info[2]);
934 	return;
935 }
936 
937 static int
938 pccard_child_location_str(device_t bus, device_t child, char *buf,
939     size_t buflen)
940 {
941 	struct pccard_ivar *devi = PCCARD_IVAR(child);
942 	struct pccard_function *func = devi->fcn;
943 
944 	snprintf(buf, buflen, "function=%d", func->number);
945 	return (0);
946 }
947 
948 static int
949 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
950     size_t buflen)
951 {
952 	struct pccard_ivar *devi = PCCARD_IVAR(child);
953 	struct pccard_function *func = devi->fcn;
954 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
955 
956 	snprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
957 	    "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
958 	    sc->card.manufacturer, sc->card.product, sc->card.cis1_info[0],
959 	    sc->card.cis1_info[1], func->function);
960 	return (0);
961 }
962 
963 static int
964 pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result)
965 {
966 	struct pccard_ivar *devi = PCCARD_IVAR(child);
967 	struct pccard_function *func = devi->fcn;
968 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
969 
970 	switch (which) {
971 	default:
972 	case PCCARD_IVAR_ETHADDR:
973 		*result = (uintptr_t)func->pf_funce_lan_nid;
974 		break;
975 	case PCCARD_IVAR_VENDOR:
976 		*result = sc->card.manufacturer;
977 		break;
978 	case PCCARD_IVAR_PRODUCT:
979 		*result = sc->card.product;
980 		break;
981 	case PCCARD_IVAR_PRODEXT:
982 		*result = sc->card.prodext;
983 		break;
984 	case PCCARD_IVAR_FUNCTION:
985 		*result = func->function;
986 		break;
987 	case PCCARD_IVAR_FUNCTION_NUMBER:
988 		if (!func) {
989 			device_printf(bus, "No function number, bug!\n");
990 			return (ENOENT);
991 		}
992 		*result = func->number;
993 		break;
994 	case PCCARD_IVAR_VENDOR_STR:
995 		*result = (uintptr_t)sc->card.cis1_info[0];
996 		break;
997 	case PCCARD_IVAR_PRODUCT_STR:
998 		*result = (uintptr_t)sc->card.cis1_info[1];
999 		break;
1000 	case PCCARD_IVAR_CIS3_STR:
1001 		*result = (uintptr_t)sc->card.cis1_info[2];
1002 		break;
1003 	case PCCARD_IVAR_CIS4_STR:
1004 		*result = (uintptr_t)sc->card.cis1_info[3];
1005 		break;
1006 	}
1007 	return (0);
1008 }
1009 
1010 static void
1011 pccard_driver_added(device_t dev, driver_t *driver)
1012 {
1013 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1014 	struct pccard_function *pf;
1015 	device_t child;
1016 
1017 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1018 		if (STAILQ_EMPTY(&pf->cfe_head))
1019 			continue;
1020 		child = pf->dev;
1021 		if (device_get_state(child) != DS_NOTPRESENT)
1022 			continue;
1023 		if (pccard_function_enable(pf) == 0 &&
1024 		    device_probe_and_attach(child) == 0) {
1025 			DEVPRINTF((sc->dev, "function %d CCR at %d "
1026 			    "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1027 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1028 			    pccard_ccr_read(pf, 0x00),
1029 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1030 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1031 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1032 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1033 		} else {
1034 			if (pf->cfe != NULL)
1035 				pccard_function_disable(pf);
1036 		}
1037 	}
1038 	return;
1039 }
1040 
1041 static struct resource *
1042 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1043     u_long start, u_long end, u_long count, u_int flags)
1044 {
1045 	struct pccard_ivar *dinfo;
1046 	struct resource_list_entry *rle = 0;
1047 	int passthrough = (device_get_parent(child) != dev);
1048 	struct resource *r = NULL;
1049 
1050 	if (passthrough) {
1051 		return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1052 		    type, rid, start, end, count, flags));
1053 	}
1054 
1055 	dinfo = device_get_ivars(child);
1056 	rle = resource_list_find(&dinfo->resources, type, *rid);
1057 
1058 	if (rle == NULL)
1059 		return (NULL);		/* no resource of that type/rid */
1060 
1061 	if (rle->res == NULL) {
1062 		switch(type) {
1063 		case SYS_RES_IOPORT:
1064 			r = bus_alloc_resource(dev, type, rid, start, end,
1065 			    count, rman_make_alignment_flags(count));
1066 			if (r == NULL)
1067 				goto bad;
1068 			resource_list_add(&dinfo->resources, type, *rid,
1069 			    rman_get_start(r), rman_get_end(r), count);
1070 			rle = resource_list_find(&dinfo->resources, type, *rid);
1071 			if (!rle)
1072 				goto bad;
1073 			rle->res = r;
1074 			break;
1075 		case SYS_RES_MEMORY:
1076 			break;
1077 		case SYS_RES_IRQ:
1078 			break;
1079 		}
1080 		return (rle->res);
1081 	}
1082 	if (rle->res->r_dev != dev)
1083 		return (NULL);
1084 	bus_release_resource(dev, type, *rid, rle->res);
1085 	rle->res = NULL;
1086 	switch(type) {
1087 	case SYS_RES_IOPORT:
1088 	case SYS_RES_MEMORY:
1089 		if (!(flags & RF_ALIGNMENT_MASK))
1090 			flags |= rman_make_alignment_flags(rle->count);
1091 		break;
1092 	case SYS_RES_IRQ:
1093 		flags |= RF_SHAREABLE;
1094 		break;
1095 	}
1096 	rle->res = resource_list_alloc(&dinfo->resources, dev, child,
1097 	    type, rid, rle->start, rle->end, rle->count, flags);
1098 	return (rle->res);
1099 bad:;
1100 	device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1101 	return (NULL);
1102 }
1103 
1104 static int
1105 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1106     struct resource *r)
1107 {
1108 	struct pccard_ivar *dinfo;
1109 	int passthrough = (device_get_parent(child) != dev);
1110 	struct resource_list_entry *rle = 0;
1111 	int ret;
1112 	int flags;
1113 
1114 	if (passthrough)
1115 		return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1116 		    type, rid, r);
1117 
1118 	dinfo = device_get_ivars(child);
1119 
1120 	rle = resource_list_find(&dinfo->resources, type, rid);
1121 
1122 	if (!rle) {
1123 		device_printf(dev, "Allocated resource not found, "
1124 		    "%d %x %lx %lx\n",
1125 		    type, rid, rman_get_start(r), rman_get_size(r));
1126 		return ENOENT;
1127 	}
1128 	if (!rle->res) {
1129 		device_printf(dev, "Allocated resource not recorded\n");
1130 		return ENOENT;
1131 	}
1132 
1133 	ret = BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1134 	    type, rid, r);
1135 	switch(type) {
1136 	case SYS_RES_IOPORT:
1137 	case SYS_RES_MEMORY:
1138 		flags = rman_make_alignment_flags(rle->count);
1139 		break;
1140 	case SYS_RES_IRQ:
1141 		flags = RF_SHAREABLE;
1142 		break;
1143 	default:
1144 		flags = 0;
1145 	}
1146 	rle->res = bus_alloc_resource(dev, type, &rid,
1147 	    rle->start, rle->end, rle->count, flags);
1148 	if (rle->res == NULL)
1149 		device_printf(dev, "release_resource: "
1150 		    "unable to reaquire resource\n");
1151 	return ret;
1152 }
1153 
1154 static void
1155 pccard_child_detached(device_t parent, device_t dev)
1156 {
1157 	struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1158 	struct pccard_function *pf = ivar->fcn;
1159 
1160 	pccard_function_disable(pf);
1161 }
1162 
1163 static void
1164 pccard_intr(void *arg)
1165 {
1166 	struct pccard_function *pf = (struct pccard_function*) arg;
1167 	int reg;
1168 	int doisr = 1;
1169 
1170 	/*
1171 	 * MFC cards know if they interrupted, so we have to ack the
1172 	 * interrupt and call the ISR.  Non-MFC cards don't have these
1173 	 * bits, so they always get called.  Many non-MFC cards have
1174 	 * this bit set always upon read, but some do not.
1175 	 *
1176 	 * We always ack the interrupt, even if there's no ISR
1177 	 * for the card.  This is done on the theory that acking
1178 	 * the interrupt will pacify the card enough to keep an
1179 	 * interrupt storm from happening.  Of course this won't
1180 	 * help in the non-MFC case.
1181 	 */
1182 	if (pccard_mfc(pf->sc)) {
1183 		reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1184 		if (reg & PCCARD_CCR_STATUS_INTR)
1185 			pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1186 			    reg & ~PCCARD_CCR_STATUS_INTR);
1187 		else
1188 			doisr = 0;
1189 	}
1190 	if (pf->intr_handler != NULL && doisr)
1191 		pf->intr_handler(pf->intr_handler_arg);
1192 }
1193 
1194 static int
1195 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1196     int flags, driver_intr_t *intr, void *arg, void **cookiep)
1197 {
1198 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1199 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1200 	struct pccard_function *func = ivar->fcn;
1201 	int err;
1202 
1203 	if (func->intr_handler != NULL)
1204 		panic("Only one interrupt handler per function allowed");
1205 	err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1206 	    func, cookiep);
1207 	if (err != 0)
1208 		return (err);
1209 	func->intr_handler = intr;
1210 	func->intr_handler_arg = arg;
1211 	func->intr_handler_cookie = *cookiep;
1212 	if (pccard_mfc(sc)) {
1213 		pccard_ccr_write(func, PCCARD_CCR_OPTION,
1214 		    pccard_ccr_read(func, PCCARD_CCR_OPTION) |
1215 		    PCCARD_CCR_OPTION_IREQ_ENABLE);
1216 	}
1217 	return (0);
1218 }
1219 
1220 static int
1221 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1222     void *cookie)
1223 {
1224 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1225 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1226 	struct pccard_function *func = ivar->fcn;
1227 	int ret;
1228 
1229 	if (pccard_mfc(sc)) {
1230 		pccard_ccr_write(func, PCCARD_CCR_OPTION,
1231 		    pccard_ccr_read(func, PCCARD_CCR_OPTION) &
1232 		    ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1233 	}
1234 	ret = bus_generic_teardown_intr(dev, child, r, cookie);
1235 	if (ret == 0) {
1236 		func->intr_handler = NULL;
1237 		func->intr_handler_arg = NULL;
1238 		func->intr_handler_cookie = NULL;
1239 	}
1240 
1241 	return (ret);
1242 }
1243 
1244 static device_method_t pccard_methods[] = {
1245 	/* Device interface */
1246 	DEVMETHOD(device_probe,		pccard_probe),
1247 	DEVMETHOD(device_attach,	pccard_attach),
1248 	DEVMETHOD(device_detach,	pccard_detach),
1249 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
1250 	DEVMETHOD(device_suspend,	pccard_suspend),
1251 	DEVMETHOD(device_resume,	pccard_resume),
1252 
1253 	/* Bus interface */
1254 	DEVMETHOD(bus_print_child,	pccard_print_child),
1255 	DEVMETHOD(bus_driver_added,	pccard_driver_added),
1256 	DEVMETHOD(bus_child_detached,	pccard_child_detached),
1257 	DEVMETHOD(bus_alloc_resource,	pccard_alloc_resource),
1258 	DEVMETHOD(bus_release_resource,	pccard_release_resource),
1259 	DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
1260 	DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
1261 	DEVMETHOD(bus_setup_intr,	pccard_setup_intr),
1262 	DEVMETHOD(bus_teardown_intr,	pccard_teardown_intr),
1263 	DEVMETHOD(bus_set_resource,	pccard_set_resource),
1264 	DEVMETHOD(bus_get_resource,	pccard_get_resource),
1265 	DEVMETHOD(bus_delete_resource,	pccard_delete_resource),
1266 	DEVMETHOD(bus_probe_nomatch,	pccard_probe_nomatch),
1267 	DEVMETHOD(bus_read_ivar,	pccard_read_ivar),
1268 	DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1269 	DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1270 
1271 	/* Card Interface */
1272 	DEVMETHOD(card_set_res_flags,	pccard_set_res_flags),
1273 	DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1274 	DEVMETHOD(card_get_type,	pccard_card_gettype),
1275 	DEVMETHOD(card_attach_card,	pccard_attach_card),
1276 	DEVMETHOD(card_detach_card,	pccard_detach_card),
1277 	DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1278 	DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1279 	DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1280 
1281 	{ 0, 0 }
1282 };
1283 
1284 static driver_t pccard_driver = {
1285 	"pccard",
1286 	pccard_methods,
1287 	sizeof(struct pccard_softc)
1288 };
1289 
1290 devclass_t	pccard_devclass;
1291 
1292 /* Maybe we need to have a slot device? */
1293 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1294 DRIVER_MODULE(pccard, pc98pcic, pccard_driver, pccard_devclass, 0, 0);
1295 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1296 DRIVER_MODULE(pccard, tcic, pccard_driver, pccard_devclass, 0, 0);
1297 MODULE_VERSION(pccard, 1);
1298 /*MODULE_DEPEND(pccard, pcic, 1, 1, 1);*/
1299