xref: /dragonfly/sys/bus/pccard/pccard.c (revision f746689a)
1 /*	$NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $	*/
2 
3 /*-
4  * Copyright (c) 1997 Marc Horowitz.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by Marc Horowitz.
17  * 4. The name of the author may not be used to endorse or promote products
18  *    derived from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  *
31  * $FreeBSD: src/sys/dev/pccard/pccard.c,v 1.108 2005/07/15 01:43:08 imp Exp $
32  * $DragonFly: src/sys/bus/pccard/pccard.c,v 1.21 2007/08/14 15:32:32 sephe Exp $
33  */
34 
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/malloc.h>
38 #include <sys/module.h>
39 #include <sys/kernel.h>
40 #include <sys/queue.h>
41 #include <sys/sysctl.h>
42 #include <sys/types.h>
43 
44 #include <sys/bus.h>
45 #include <sys/rman.h>
46 
47 #include <net/ethernet.h>
48 
49 #include <bus/pccard/pccardreg.h>
50 #include <bus/pccard/pccardvar.h>
51 #include <bus/pccard/pccard_cis.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) kprintf arg
74 #define	DEVPRINTF(arg) if (pccard_debug) device_printf arg
75 #define PRVERBOSE(arg) kprintf arg
76 #define DEVPRVERBOSE(arg) device_printf arg
77 #else
78 #define	DPRINTF(arg)
79 #define	DEVPRINTF(arg)
80 #define PRVERBOSE(arg) if (bootverbose) kprintf 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 void	pccard_function_init(struct pccard_function *pf);
89 static void	pccard_function_free(struct pccard_function *pf);
90 static int	pccard_function_enable(struct pccard_function *pf);
91 static void	pccard_function_disable(struct pccard_function *pf);
92 static int	pccard_compat_do_probe(device_t bus, device_t dev);
93 static int	pccard_compat_do_attach(device_t bus, device_t dev);
94 static int	pccard_add_children(device_t dev, int busno);
95 static int	pccard_probe(device_t dev);
96 static int	pccard_attach(device_t dev);
97 static int	pccard_detach(device_t dev);
98 static void	pccard_print_resources(struct resource_list *rl,
99 		    const char *name, int type, int count, const char *format);
100 static int	pccard_print_child(device_t dev, device_t child);
101 static int	pccard_set_resource(device_t dev, device_t child, int type,
102 		    int rid, u_long start, u_long count);
103 static int	pccard_get_resource(device_t dev, device_t child, int type,
104 		    int rid, u_long *startp, u_long *countp);
105 static void	pccard_delete_resource(device_t dev, device_t child, int type,
106 		    int rid);
107 static int	pccard_set_res_flags(device_t dev, device_t child, int type,
108 		    int rid, uint32_t flags);
109 static int	pccard_set_memory_offset(device_t dev, device_t child, int rid,
110 		    uint32_t offset, uint32_t *deltap);
111 static void	pccard_probe_nomatch(device_t cbdev, device_t child);
112 static int	pccard_read_ivar(device_t bus, device_t child, int which,
113 		    u_char *result);
114 static void	pccard_driver_added(device_t dev, driver_t *driver);
115 static struct resource *pccard_alloc_resource(device_t dev,
116 		    device_t child, int type, int *rid, u_long start,
117 		    u_long end, u_long count, u_int flags);
118 static int	pccard_release_resource(device_t dev, device_t child, int type,
119 		    int rid, struct resource *r);
120 static void	pccard_child_detached(device_t parent, device_t dev);
121 static void	pccard_intr(void *arg);
122 static int	pccard_setup_intr(device_t dev, device_t child,
123 		    struct resource *irq, int flags, driver_intr_t *intr,
124 		    void *arg, void **cookiep, lwkt_serialize_t serializer);
125 static int	pccard_teardown_intr(device_t dev, device_t child,
126 		    struct resource *r, void *cookie);
127 
128 static const struct pccard_product *
129 pccard_do_product_lookup(device_t bus, device_t dev,
130 			 const struct pccard_product *tab, size_t ent_size,
131 			 pccard_product_match_fn matchfn);
132 
133 
134 static int
135 pccard_ccr_read(struct pccard_function *pf, int ccr)
136 {
137 	return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
138 	    pf->pf_ccr_offset + ccr));
139 }
140 
141 static void
142 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
143 {
144 	if ((pf->ccr_mask) & (1 << (ccr / 2))) {
145 		bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
146 		    pf->pf_ccr_offset + ccr, val);
147 	}
148 }
149 
150 static int
151 pccard_set_default_descr(device_t dev)
152 {
153 	const char *vendorstr, *prodstr;
154 	uint32_t vendor, prod;
155 	char *str;
156 
157 	vendorstr = pccard_get_vendor_str(dev);
158 	prodstr = pccard_get_product_str(dev);
159 	if (vendorstr != NULL && prodstr != NULL) {
160 		str = kmalloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
161 		    M_WAITOK);
162 		ksprintf(str, "%s %s", vendorstr, prodstr);
163 		device_set_desc_copy(dev, str);
164 		kfree(str, M_DEVBUF);
165 	} else {
166 		vendor = pccard_get_vendor(dev);
167 		prod = pccard_get_product(dev);
168 
169 		str = kmalloc(100, M_DEVBUF, M_WAITOK);
170 		ksnprintf(str, 100, "vendor=0x%x product=0x%x", vendor, prod);
171 		device_set_desc_copy(dev, str);
172 		kfree(str, M_DEVBUF);
173 	}
174 	return (0);
175 }
176 
177 static int
178 pccard_attach_card(device_t dev)
179 {
180 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
181 	struct pccard_function *pf;
182 	struct pccard_ivar *ivar;
183 	device_t child;
184 	int i;
185 
186 	/*
187 	 * this is here so that when socket_enable calls gettype, trt happens
188 	 */
189 	STAILQ_INIT(&sc->card.pf_head);
190 
191 	DEVPRINTF((dev, "chip_socket_enable\n"));
192 	POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
193 
194 	DEVPRINTF((dev, "read_cis\n"));
195 	pccard_read_cis(sc);
196 
197 	DEVPRINTF((dev, "check_cis_quirks\n"));
198 	pccard_check_cis_quirks(dev);
199 
200 	/*
201 	 * bail now if the card has no functions, or if there was an error in
202 	 * the cis.
203 	 */
204 
205 	if (sc->card.error) {
206 		device_printf(dev, "CARD ERROR!\n");
207 		return (1);
208 	}
209 	if (STAILQ_EMPTY(&sc->card.pf_head)) {
210 		device_printf(dev, "Card has no functions!\n");
211 		return (1);
212 	}
213 
214 	if (bootverbose || pccard_debug)
215 		pccard_print_cis(dev);
216 
217 	DEVPRINTF((dev, "functions scanning\n"));
218 	i = -1;
219 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
220 		i++;
221 		if (STAILQ_EMPTY(&pf->cfe_head)) {
222 			device_printf(dev,
223 			    "Function %d has no config entries.!\n", i);
224 			continue;
225 		}
226 		pf->sc = sc;
227 		pf->cfe = NULL;
228 		pf->dev = NULL;
229 	}
230 	DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
231 	    pccard_mfc(sc)));
232 
233 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
234 		if (STAILQ_EMPTY(&pf->cfe_head))
235 			continue;
236 		/*
237 		 * In NetBSD, the drivers are responsible for activating
238 		 * each function of a card.  I think that in FreeBSD we
239 		 * want to activate them enough for the usual bus_*_resource
240 		 * routines will do the right thing.  This many mean a
241 		 * departure from the current NetBSD model.
242 		 *
243 		 * This seems to work well in practice for most cards.
244 		 * However, there are two cases that are problematic.
245 		 * If a driver wishes to pick and chose which config
246 		 * entry to use, then this method falls down.  These
247 		 * are usually older cards.  In addition, there are
248 		 * some cards that have multiple hardware units on the
249 		 * cards, but presents only one CIS chain.  These cards
250 		 * are combination cards, but only one of these units
251 		 * can be on at a time.
252 		 */
253 		ivar = kmalloc(sizeof(struct pccard_ivar), M_DEVBUF,
254 		    M_WAITOK | M_ZERO);
255 		resource_list_init(&ivar->resources);
256 		child = device_add_child(dev, NULL, -1);
257 		device_set_ivars(child, ivar);
258 		ivar->pf = pf;
259 		pf->dev = child;
260 		/*
261 		 * XXX We might want to move the next three lines into
262 		 * XXX the pccard interface layer.  For the moment, this
263 		 * XXX is OK, but some drivers want to pick the config
264 		 * XXX entry to use as well as some address tweaks (mostly
265 		 * XXX due to bugs in decode logic that makes some
266 		 * XXX addresses illegal or broken).
267 		 */
268 		pccard_function_init(pf);
269 		if (sc->sc_enabled_count == 0)
270 			POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
271 		if (pccard_function_enable(pf) == 0 &&
272 		    pccard_set_default_descr(child) == 0 &&
273 		    device_probe_and_attach(child) == 0) {
274 			DEVPRINTF((sc->dev, "function %d CCR at %d "
275 			    "offset %x mask %x: "
276 			    "%x %x %x %x, %x %x %x %x, %x\n",
277 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
278 			    pf->ccr_mask, pccard_ccr_read(pf, 0x00),
279 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
280 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
281 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
282 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
283 		} else {
284 			if (pf->cfe != NULL)
285 				pccard_function_disable(pf);
286 		}
287 	}
288 	return (0);
289 }
290 
291 static int
292 pccard_detach_card(device_t dev)
293 {
294 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
295 	struct pccard_function *pf;
296 	struct pccard_config_entry *cfe;
297 	int state;
298 
299 	/*
300 	 * We are running on either the PCCARD socket's event thread
301 	 * or in user context detaching a device by user request.
302 	 */
303 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
304 		if (pf->dev == NULL)
305 			continue;
306 		state = device_get_state(pf->dev);
307 		if (state == DS_ATTACHED || state == DS_BUSY)
308 			device_detach(pf->dev);
309 		if (pf->cfe != NULL)
310 			pccard_function_disable(pf);
311 		pccard_function_free(pf);
312 		device_delete_child(dev, pf->dev);
313 	}
314 	if (sc->sc_enabled_count == 0)
315 		POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
316 
317 	while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
318 		while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
319 			STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
320 			kfree(cfe, M_DEVBUF);
321 		}
322 		STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
323 		kfree(pf, M_DEVBUF);
324 	}
325 	return (0);
326 }
327 
328 static const struct pccard_product *
329 pccard_do_product_lookup(device_t bus, device_t dev,
330     const struct pccard_product *tab, size_t ent_size,
331     pccard_product_match_fn matchfn)
332 {
333 	const struct pccard_product *ent;
334 	int matches;
335 	uint32_t vendor;
336 	uint32_t prod;
337 	const char *vendorstr;
338 	const char *prodstr;
339 	const char *cis3str;
340 	const char *cis4str;
341 
342 #ifdef DIAGNOSTIC
343 	if (sizeof *ent > ent_size)
344 		panic("pccard_product_lookup: bogus ent_size %jd",
345 		    (intmax_t) ent_size);
346 #endif
347 	vendor = pccard_get_vendor(dev);
348 	prod = pccard_get_product(dev);
349 	vendorstr = pccard_get_vendor_str(dev);
350 	prodstr = pccard_get_product_str(dev);
351 	cis3str = pccard_get_cis3_str(dev);
352 	cis4str = pccard_get_cis4_str(dev);
353 
354 	for (ent = tab; ent->pp_vendor != 0; ent =
355 	    (const struct pccard_product *) ((const char *) ent + ent_size)) {
356 		matches = 1;
357 		if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
358 		    ent->pp_product == PCCARD_PRODUCT_ANY &&
359 		    ent->pp_cis[0] == NULL &&
360 		    ent->pp_cis[1] == NULL) {
361 			if (ent->pp_name)
362 				device_printf(dev,
363 				    "Total wildcard entry ignored for %s\n",
364 				    ent->pp_name);
365 			continue;
366 		}
367 		if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
368 		    vendor != ent->pp_vendor)
369 			matches = 0;
370 		if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
371 		    prod != ent->pp_product)
372 			matches = 0;
373 		if (matches && ent->pp_cis[0] &&
374 		    (vendorstr == NULL ||
375 		    strcmp(ent->pp_cis[0], vendorstr) != 0))
376 			matches = 0;
377 		if (matches && ent->pp_cis[1] &&
378 		    (prodstr == NULL ||
379 		    strcmp(ent->pp_cis[1], prodstr) != 0))
380 			matches = 0;
381 		if (matches && ent->pp_cis[2] &&
382 		    (cis3str == NULL ||
383 		    strcmp(ent->pp_cis[2], cis3str) != 0))
384 			matches = 0;
385 		if (matches && ent->pp_cis[3] &&
386 		    (cis4str == NULL ||
387 		    strcmp(ent->pp_cis[3], cis4str) != 0))
388 			matches = 0;
389 		if (matchfn != NULL)
390 			matches = (*matchfn)(dev, ent, matches);
391 		if (matches)
392 			return (ent);
393 	}
394 	return (NULL);
395 }
396 
397 /*
398  * Initialize a PCCARD function.  May be called as long as the function is
399  * disabled.
400  *
401  * Note: pccard_function_init should not keep resources allocated.  It should
402  * only set them up ala isa pnp, set the values in the rl lists, and return.
403  * Any resource held after pccard_function_init is called is a bug.  However,
404  * the bus routines to get the resources also assume that pccard_function_init
405  * does this, so they need to be fixed too.
406  */
407 static void
408 pccard_function_init(struct pccard_function *pf)
409 {
410 	struct pccard_config_entry *cfe;
411 	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
412 	struct resource_list *rl = &devi->resources;
413 	struct resource_list_entry *rle;
414 	struct resource *r = 0;
415 	device_t bus;
416 	u_long start, end, len;
417 	int i, rid, spaces;
418 
419 	if (pf->pf_flags & PFF_ENABLED) {
420 		kprintf("pccard_function_init: function is enabled");
421 		return;
422 	}
423 	bus = device_get_parent(pf->dev);
424 	/* Remember which configuration entry we are using. */
425 	STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
426 		if (cfe->iftype != PCCARD_IFTYPE_IO)
427 			continue;
428 		spaces = 0;
429 		for (i = 0; i < cfe->num_iospace; i++) {
430 			start = cfe->iospace[i].start;
431 			if (start)
432 				end = start + cfe->iospace[i].length - 1;
433 			else
434 				end = ~0UL;
435 			DEVPRINTF((bus, "I/O rid %d start %lx end %lx\n",
436 			    i, start, end));
437 			rid = i;
438 			len = cfe->iospace[i].length;
439 			r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
440 			    start, end, len, rman_make_alignment_flags(len));
441 			if (r == NULL)
442 				goto not_this_one;
443 			resource_list_add(rl, SYS_RES_IOPORT,
444 			    rid, rman_get_start(r), rman_get_end(r),
445 			    cfe->iospace[i].length);
446 			rle = resource_list_find(rl, SYS_RES_IOPORT, rid);
447 			if (rle == NULL)
448 				panic("Cannot add resource rid %d IOPORT", rid);
449 			rle->res = r;
450 			spaces++;
451 		}
452 		for (i = 0; i < cfe->num_memspace; i++) {
453 			start = cfe->memspace[i].hostaddr;
454 			if (start)
455 				end = start + cfe->memspace[i].length - 1;
456 			else
457 				end = ~0UL;
458 			DEVPRINTF((bus, "Memory rid %d start %lx end %lx\n",
459 			    i, start, end));
460 			rid = i;
461 			len = cfe->memspace[i].length;
462 			r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
463 			    start, end, len, rman_make_alignment_flags(len));
464 			if (r == NULL)
465 				goto not_this_one;
466 			resource_list_add(rl, SYS_RES_MEMORY,
467 			    rid, rman_get_start(r), rman_get_end(r),
468 			    cfe->memspace[i].length);
469 			rle = resource_list_find(rl, SYS_RES_MEMORY, rid);
470 			if (rle == NULL)
471 				panic("Cannot add resource rid %d MEM", rid);
472 			rle->res = r;
473 			spaces++;
474 		}
475 		if (spaces == 0) {
476 			DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
477 			goto not_this_one;
478 		}
479 		if (cfe->irqmask) {
480 			rid = 0;
481 			r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
482 			    RF_SHAREABLE);
483 			if (r == NULL)
484 				goto not_this_one;
485 			resource_list_add(rl, SYS_RES_IRQ, rid,
486 			    rman_get_start(r), rman_get_end(r), 1);
487 			rle = resource_list_find(rl, SYS_RES_IRQ, rid);
488 			if (rle == NULL)
489 				panic("Cannot add resource rid %d IRQ", rid);
490 			rle->res = r;
491 		}
492 		/* If we get to here, we've allocated all we need */
493 		pf->cfe = cfe;
494 		break;
495 	    not_this_one:;
496 		DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
497 		    cfe->number));
498 #if 0 /* YYY */
499 		resource_list_purge(rl);
500 #endif
501 	}
502 }
503 
504 /*
505  * Free resources allocated by pccard_function_init(), May be called as long
506  * as the function is disabled.
507  *
508  * NOTE: This function should be unnecessary.  pccard_function_init should
509  * never keep resources initialized.
510  */
511 static void
512 pccard_function_free(struct pccard_function *pf)
513 {
514 	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
515 	struct resource_list_entry *rle;
516 
517 	if (pf->pf_flags & PFF_ENABLED) {
518 		kprintf("pccard_function_init: function is enabled");
519 		return;
520 	}
521 
522 	SLIST_FOREACH(rle, &devi->resources, link) {
523 		if (rle->res) {
524 			if (rman_get_device(rle->res) != pf->sc->dev)
525 				device_printf(pf->sc->dev,
526 				    "function_free: Resource still owned by "
527 				    "child, oops. "
528 				    "(type=%d, rid=%d, addr=%lx)\n",
529 				    rle->type, rle->rid,
530 				    rman_get_start(rle->res));
531 			BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
532 			    pf->sc->dev, rle->type, rle->rid, rle->res);
533 			rle->res = NULL;
534 		}
535 	}
536 	resource_list_free(&devi->resources);
537 }
538 
539 static void
540 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
541     bus_addr_t offset, bus_size_t size)
542 {
543 	bus_size_t iosize, tmp;
544 
545 	if (addr != 0) {
546 		if (pf->pf_mfc_iomax == 0) {
547 			pf->pf_mfc_iobase = addr + offset;
548 			pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
549 		} else {
550 			/* this makes the assumption that nothing overlaps */
551 			if (pf->pf_mfc_iobase > addr + offset)
552 				pf->pf_mfc_iobase = addr + offset;
553 			if (pf->pf_mfc_iomax < addr + offset + size)
554 				pf->pf_mfc_iomax = addr + offset + size;
555 		}
556 	}
557 
558 	tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
559 	/* round up to nearest (2^n)-1 */
560 	for (iosize = 1; iosize < tmp; iosize <<= 1)
561 		;
562 	iosize--;
563 
564 	DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
565 	    (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
566 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
567 	    pf->pf_mfc_iobase & 0xff);
568 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
569 	    (pf->pf_mfc_iobase >> 8) & 0xff);
570 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
571 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
572 	pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
573 }
574 
575 /* Enable a PCCARD function */
576 static int
577 pccard_function_enable(struct pccard_function *pf)
578 {
579 	struct pccard_function *tmp;
580 	int reg;
581 	device_t dev = pf->sc->dev;
582 
583 	if (pf->cfe == NULL) {
584 		DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
585 		return (ENOMEM);
586 	}
587 
588 	/*
589 	 * Increase the reference count on the socket, enabling power, if
590 	 * necessary.
591 	 */
592 	pf->sc->sc_enabled_count++;
593 
594 	if (pf->pf_flags & PFF_ENABLED) {
595 		/*
596 		 * Don't do anything if we're already enabled.
597 		 */
598 		return (0);
599 	}
600 
601 	/*
602 	 * it's possible for different functions' CCRs to be in the same
603 	 * underlying page.  Check for that.
604 	 */
605 	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
606 		if ((tmp->pf_flags & PFF_ENABLED) &&
607 		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
608 		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
609 		    (tmp->ccr_base - tmp->pf_ccr_offset +
610 		    tmp->pf_ccr_realsize))) {
611 			pf->pf_ccrt = tmp->pf_ccrt;
612 			pf->pf_ccrh = tmp->pf_ccrh;
613 			pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
614 
615 			/*
616 			 * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
617 			 * tmp->ccr_base) + pf->ccr_base;
618 			 */
619 			/* pf->pf_ccr_offset =
620 			    (tmp->pf_ccr_offset + pf->ccr_base) -
621 			    tmp->ccr_base; */
622 			pf->pf_ccr_window = tmp->pf_ccr_window;
623 			break;
624 		}
625 	}
626 	if (tmp == NULL) {
627 		pf->ccr_rid = 0;
628 		pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
629 		    &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
630 		if (!pf->ccr_res)
631 			goto bad;
632 		DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
633 		    rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
634 		    pf->ccr_base));
635 		CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
636 		    pf->ccr_rid, PCCARD_A_MEM_ATTR);
637 		CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
638 		    pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
639 		pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
640 		pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
641 		pf->pf_ccr_realsize = 1;
642 	}
643 
644 	reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
645 	reg |= PCCARD_CCR_OPTION_LEVIREQ;
646 	if (pccard_mfc(pf->sc)) {
647 		reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
648 			PCCARD_CCR_OPTION_ADDR_DECODE);
649 		/* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
650 	}
651 	pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
652 
653 	reg = 0;
654 	if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
655 		reg |= PCCARD_CCR_STATUS_IOIS8;
656 	if (pf->cfe->flags & PCCARD_CFE_AUDIO)
657 		reg |= PCCARD_CCR_STATUS_AUDIO;
658 	pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
659 
660 	pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
661 
662 	if (pccard_mfc(pf->sc))
663 		pccard_mfc_adjust_iobase(pf, 0, 0, 0);
664 
665 #ifdef PCCARDDEBUG
666 	if (pccard_debug) {
667 		STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
668 			device_printf(tmp->sc->dev,
669 			    "function %d CCR at %d offset %x: "
670 			    "%x %x %x %x, %x %x %x %x, %x\n",
671 			    tmp->number, tmp->pf_ccr_window,
672 			    tmp->pf_ccr_offset,
673 			    pccard_ccr_read(tmp, 0x00),
674 			    pccard_ccr_read(tmp, 0x02),
675 			    pccard_ccr_read(tmp, 0x04),
676 			    pccard_ccr_read(tmp, 0x06),
677 			    pccard_ccr_read(tmp, 0x0A),
678 			    pccard_ccr_read(tmp, 0x0C),
679 			    pccard_ccr_read(tmp, 0x0E),
680 			    pccard_ccr_read(tmp, 0x10),
681 			    pccard_ccr_read(tmp, 0x12));
682 		}
683 	}
684 #endif
685 	pf->pf_flags |= PFF_ENABLED;
686 	return (0);
687 
688  bad:
689 	/*
690 	 * Decrement the reference count, and power down the socket, if
691 	 * necessary.
692 	 */
693 	pf->sc->sc_enabled_count--;
694 	DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
695 
696 	return (1);
697 }
698 
699 /* Disable PCCARD function. */
700 static void
701 pccard_function_disable(struct pccard_function *pf)
702 {
703 	struct pccard_function *tmp;
704 	device_t dev = pf->sc->dev;
705 
706 	if (pf->cfe == NULL)
707 		panic("pccard_function_disable: function not initialized");
708 
709 	if ((pf->pf_flags & PFF_ENABLED) == 0) {
710 		/*
711 		 * Don't do anything if we're already disabled.
712 		 */
713 		return;
714 	}
715 
716 	if (pf->intr_handler != NULL) {
717 		struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
718 		struct resource_list_entry *rle =
719 		    resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
720 		if (rle == NULL)
721 			panic("Can't disable an interrupt with no IRQ res\n");
722 		BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
723 		    pf->intr_handler_cookie);
724 	}
725 
726 	/*
727 	 * it's possible for different functions' CCRs to be in the same
728 	 * underlying page.  Check for that.  Note we mark us as disabled
729 	 * first to avoid matching ourself.
730 	 */
731 
732 	pf->pf_flags &= ~PFF_ENABLED;
733 	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
734 		if ((tmp->pf_flags & PFF_ENABLED) &&
735 		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
736 		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
737 		    (tmp->ccr_base - tmp->pf_ccr_offset +
738 		    tmp->pf_ccr_realsize)))
739 			break;
740 	}
741 
742 	/* Not used by anyone else; unmap the CCR. */
743 	if (tmp == NULL) {
744 		bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
745 		    pf->ccr_res);
746 		pf->ccr_res = NULL;
747 	}
748 
749 	/*
750 	 * Decrement the reference count, and power down the socket, if
751 	 * necessary.
752 	 */
753 	pf->sc->sc_enabled_count--;
754 }
755 
756 /*
757  * simulate the old "probe" routine.  In the new world order, the driver
758  * needs to grab devices while in the old they were assigned to the device by
759  * the pccardd process.  These symbols are exported to the upper layers.
760  */
761 static int
762 pccard_compat_do_probe(device_t bus, device_t dev)
763 {
764 	return (CARD_COMPAT_MATCH(dev));
765 }
766 
767 static int
768 pccard_compat_do_attach(device_t bus, device_t dev)
769 {
770 	int err;
771 
772 	err = CARD_COMPAT_PROBE(dev);
773 	if (err <= 0)
774 		err = CARD_COMPAT_ATTACH(dev);
775 	return (err);
776 }
777 
778 #define PCCARD_NPORT	2
779 #define PCCARD_NMEM	5
780 #define PCCARD_NIRQ	1
781 #define PCCARD_NDRQ	0
782 
783 static int
784 pccard_add_children(device_t dev, int busno)
785 {
786 	/* Call parent to scan for any current children */
787 	return (0);
788 }
789 
790 static int
791 pccard_probe(device_t dev)
792 {
793 	device_set_desc(dev, "16-bit PCCard bus");
794 	return (pccard_add_children(dev, device_get_unit(dev)));
795 }
796 
797 static int
798 pccard_attach(device_t dev)
799 {
800 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
801 
802 	sc->dev = dev;
803 	sc->sc_enabled_count = 0;
804 	return (bus_generic_attach(dev));
805 }
806 
807 static int
808 pccard_detach(device_t dev)
809 {
810 	pccard_detach_card(dev);
811 	return 0;
812 }
813 
814 static int
815 pccard_suspend(device_t self)
816 {
817 	pccard_detach_card(self);
818 	return (0);
819 }
820 
821 static
822 int
823 pccard_resume(device_t self)
824 {
825 	return (0);
826 }
827 
828 static void
829 pccard_print_resources(struct resource_list *rl, const char *name, int type,
830     int count, const char *format)
831 {
832 	struct resource_list_entry *rle;
833 	int printed;
834 	int i;
835 
836 	printed = 0;
837 	for (i = 0; i < count; i++) {
838 		rle = resource_list_find(rl, type, i);
839 		if (rle != NULL) {
840 			if (printed == 0)
841 				kprintf(" %s ", name);
842 			else if (printed > 0)
843 				kprintf(",");
844 			printed++;
845 			kprintf(format, rle->start);
846 			if (rle->count > 1) {
847 				kprintf("-");
848 				kprintf(format, rle->start + rle->count - 1);
849 			}
850 		} else if (i > 3) {
851 			/* check the first few regardless */
852 			break;
853 		}
854 	}
855 }
856 
857 static int
858 pccard_print_child(device_t dev, device_t child)
859 {
860 	struct pccard_ivar *devi = PCCARD_IVAR(child);
861 	struct resource_list *rl = &devi->resources;
862 	int retval = 0;
863 
864 	retval += bus_print_child_header(dev, child);
865 	retval += kprintf(" at");
866 
867 	if (devi != NULL) {
868 		pccard_print_resources(rl, "port", SYS_RES_IOPORT,
869 		    PCCARD_NPORT, "%#lx");
870 		pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
871 		    PCCARD_NMEM, "%#lx");
872 		pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
873 		    "%ld");
874 		pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
875 		    "%ld");
876 		retval += kprintf(" function %d config %d", devi->pf->number,
877 		    devi->pf->cfe->number);
878 	}
879 
880 	retval += bus_print_child_footer(dev, child);
881 
882 	return (retval);
883 }
884 
885 static int
886 pccard_set_resource(device_t dev, device_t child, int type, int rid,
887     u_long start, u_long count)
888 {
889 	struct pccard_ivar *devi = PCCARD_IVAR(child);
890 	struct resource_list *rl = &devi->resources;
891 
892 	if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
893 	    && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
894 		return (EINVAL);
895 	if (rid < 0)
896 		return (EINVAL);
897 	if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
898 		return (EINVAL);
899 	if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
900 		return (EINVAL);
901 	if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
902 		return (EINVAL);
903 	if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
904 		return (EINVAL);
905 
906 	resource_list_add(rl, type, rid, start, start + count - 1, count);
907 	if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
908 	    type, &rid, start, start + count - 1, count, 0))
909 		return 0;
910 	else
911 		return ENOMEM;
912 }
913 
914 static int
915 pccard_get_resource(device_t dev, device_t child, int type, int rid,
916     u_long *startp, u_long *countp)
917 {
918 	struct pccard_ivar *devi = PCCARD_IVAR(child);
919 	struct resource_list *rl = &devi->resources;
920 	struct resource_list_entry *rle;
921 
922 	rle = resource_list_find(rl, type, rid);
923 	if (rle == NULL)
924 		return (ENOENT);
925 
926 	if (startp != NULL)
927 		*startp = rle->start;
928 	if (countp != NULL)
929 		*countp = rle->count;
930 
931 	return (0);
932 }
933 
934 static void
935 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
936 {
937 	struct pccard_ivar *devi = PCCARD_IVAR(child);
938 	struct resource_list *rl = &devi->resources;
939 	resource_list_delete(rl, type, rid);
940 }
941 
942 static int
943 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
944     uint32_t flags)
945 {
946 	return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
947 	    rid, flags));
948 }
949 
950 static int
951 pccard_set_memory_offset(device_t dev, device_t child, int rid,
952     uint32_t offset, uint32_t *deltap)
953 
954 {
955 	return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
956 	    offset, deltap));
957 }
958 
959 static void
960 pccard_probe_nomatch(device_t bus, device_t child)
961 {
962 	struct pccard_ivar *devi = PCCARD_IVAR(child);
963 	struct pccard_function *pf = devi->pf;
964 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
965 	int i;
966 
967 	device_printf(bus, "<unknown card>");
968 	kprintf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
969 	    "at function %d\n", sc->card.manufacturer, sc->card.product,
970 	    pf->function, pf->number);
971 	device_printf(bus, "   CIS info: ");
972 	for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
973 		kprintf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
974 	kprintf("\n");
975 	return;
976 }
977 
978 static int
979 pccard_child_location_str(device_t bus, device_t child, char *buf,
980     size_t buflen)
981 {
982 	struct pccard_ivar *devi = PCCARD_IVAR(child);
983 	struct pccard_function *pf = devi->pf;
984 
985 	ksnprintf(buf, buflen, "function=%d", pf->number);
986 	return (0);
987 }
988 
989 /* XXX Maybe this should be in subr_bus? */
990 static void
991 pccard_safe_quote(char *dst, const char *src, size_t len)
992 {
993 	char *walker = dst, *ep = dst + len - 1;
994 
995 	if (len == 0)
996 		return;
997 	while (walker < ep)
998 	{
999 		if (*src == '"') {
1000 			if (ep - walker < 2)
1001 				break;
1002 			*walker++ = '\\';
1003 		}
1004 		*walker++ = *src++;
1005 	}
1006 	*walker = '\0';
1007 }
1008 
1009 static int
1010 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1011     size_t buflen)
1012 {
1013 	struct pccard_ivar *devi = PCCARD_IVAR(child);
1014 	struct pccard_function *pf = devi->pf;
1015 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
1016 	char cis0[128], cis1[128];
1017 
1018 	pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0));
1019 	pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1));
1020 	ksnprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
1021 	    "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
1022 	    sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function);
1023 	return (0);
1024 }
1025 
1026 static int
1027 pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
1028 {
1029 	struct pccard_ivar *devi = PCCARD_IVAR(child);
1030 	struct pccard_function *pf = devi->pf;
1031 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
1032 
1033 	if (!pf)
1034 		panic("No pccard function pointer");
1035 	switch (which) {
1036 	default:
1037 		return (EINVAL);
1038 	case PCCARD_IVAR_ETHADDR:
1039 		*(const uint8_t **)result = pf->pf_funce_lan_nid;
1040 		break;
1041 	case PCCARD_IVAR_VENDOR:
1042 		*(uint32_t *)result = sc->card.manufacturer;
1043 		break;
1044 	case PCCARD_IVAR_PRODUCT:
1045 		*(uint32_t *)result = sc->card.product;
1046 		break;
1047 	case PCCARD_IVAR_PRODEXT:
1048 		*(uint16_t *)result = sc->card.prodext;
1049 		break;
1050 	case PCCARD_IVAR_FUNCTION:
1051 		*(uint32_t *)result = pf->function;
1052 		break;
1053 	case PCCARD_IVAR_FUNCTION_NUMBER:
1054 		*(uint32_t *)result = pf->number;
1055 		break;
1056 	case PCCARD_IVAR_VENDOR_STR:
1057 		*(const char **)result = sc->card.cis1_info[0];
1058 		break;
1059 	case PCCARD_IVAR_PRODUCT_STR:
1060 		*(const char **)result = sc->card.cis1_info[1];
1061 		break;
1062 	case PCCARD_IVAR_CIS3_STR:
1063 		*(const char **)result = sc->card.cis1_info[2];
1064 		break;
1065 	case PCCARD_IVAR_CIS4_STR:
1066 		*(const char **)result = sc->card.cis1_info[3];
1067 		break;
1068 	}
1069 	return (0);
1070 }
1071 
1072 static void
1073 pccard_driver_added(device_t dev, driver_t *driver)
1074 {
1075 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1076 	struct pccard_function *pf;
1077 	device_t child;
1078 
1079 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1080 		if (STAILQ_EMPTY(&pf->cfe_head))
1081 			continue;
1082 		child = pf->dev;
1083 		if (device_get_state(child) != DS_NOTPRESENT)
1084 			continue;
1085 		if (pccard_function_enable(pf) == 0 &&
1086 		    device_probe_and_attach(child) == 0) {
1087 			DEVPRINTF((sc->dev, "function %d CCR at %d "
1088 			    "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1089 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1090 			    pccard_ccr_read(pf, 0x00),
1091 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1092 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1093 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1094 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1095 		} else {
1096 			if (pf->cfe != NULL)
1097 				pccard_function_disable(pf);
1098 		}
1099 	}
1100 	return;
1101 }
1102 
1103 static struct resource *
1104 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1105     u_long start, u_long end, u_long count, u_int flags)
1106 {
1107 	struct pccard_ivar *dinfo;
1108 	struct resource_list_entry *rle = 0;
1109 	int passthrough = (device_get_parent(child) != dev);
1110 	int isdefault = (start == 0 && end == ~0UL && count == 1);
1111 	struct resource *r = NULL;
1112 
1113 	/* XXX I'm no longer sure this is right */
1114 	if (passthrough) {
1115 		return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1116 		    type, rid, start, end, count, flags));
1117 	}
1118 
1119 	dinfo = device_get_ivars(child);
1120 	rle = resource_list_find(&dinfo->resources, type, *rid);
1121 
1122 	if (rle == NULL && isdefault)
1123 		return (NULL);	/* no resource of that type/rid */
1124 	if (rle == NULL || rle->res == NULL) {
1125 		/* XXX Need to adjust flags */
1126 		r = bus_alloc_resource(dev, type, rid, start, end,
1127 		  count, flags);
1128 		if (r == NULL)
1129 		    goto bad;
1130 		resource_list_add(&dinfo->resources, type, *rid,
1131 		  rman_get_start(r), rman_get_end(r), count);
1132 		rle = resource_list_find(&dinfo->resources, type, *rid);
1133 		if (!rle)
1134 		    goto bad;
1135 		rle->res = r;
1136 	}
1137 	/*
1138 	 * If dev doesn't own the device, then we can't give this device
1139 	 * out.
1140 	 */
1141 	if (rman_get_device(rle->res) != dev)
1142 		return (NULL);
1143 	rman_set_device(rle->res, child);
1144 	if (flags & RF_ACTIVE)
1145 		BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1146 	return (rle->res);
1147 bad:;
1148 	device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1149 	return (NULL);
1150 }
1151 
1152 static int
1153 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1154     struct resource *r)
1155 {
1156 	struct pccard_ivar *dinfo;
1157 	int passthrough = (device_get_parent(child) != dev);
1158 	struct resource_list_entry *rle = 0;
1159 
1160 	if (passthrough)
1161 		return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1162 		    type, rid, r);
1163 
1164 	dinfo = device_get_ivars(child);
1165 
1166 	rle = resource_list_find(&dinfo->resources, type, rid);
1167 
1168 	if (!rle) {
1169 		device_printf(dev, "Allocated resource not found, "
1170 		    "%d %x %lx %lx\n",
1171 		    type, rid, rman_get_start(r), rman_get_size(r));
1172 		return ENOENT;
1173 	}
1174 	if (!rle->res) {
1175 		device_printf(dev, "Allocated resource not recorded\n");
1176 		return ENOENT;
1177 	}
1178 	/*
1179 	 * Deactivate the resource (since it is being released), and
1180 	 * assign it to the bus.
1181 	 */
1182 	BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1183 	rman_set_device(rle->res, dev);
1184 	return (0);
1185 }
1186 
1187 static void
1188 pccard_child_detached(device_t parent, device_t dev)
1189 {
1190 	struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1191 	struct pccard_function *pf = ivar->pf;
1192 
1193 	pccard_function_disable(pf);
1194 }
1195 
1196 static void
1197 pccard_intr(void *arg)
1198 {
1199 	struct pccard_function *pf = (struct pccard_function*) arg;
1200 	int reg;
1201 	int doisr = 1;
1202 
1203 	/*
1204 	 * MFC cards know if they interrupted, so we have to ack the
1205 	 * interrupt and call the ISR.  Non-MFC cards don't have these
1206 	 * bits, so they always get called.  Many non-MFC cards have
1207 	 * this bit set always upon read, but some do not.
1208 	 *
1209 	 * We always ack the interrupt, even if there's no ISR
1210 	 * for the card.  This is done on the theory that acking
1211 	 * the interrupt will pacify the card enough to keep an
1212 	 * interrupt storm from happening.  Of course this won't
1213 	 * help in the non-MFC case.
1214 	 *
1215 	 * This has no impact for MPSAFEness of the client drivers.
1216 	 * We register this with whatever flags the intr_handler
1217 	 * was registered with.  All these functions are MPSAFE.
1218 	 */
1219 	if (pccard_mfc(pf->sc)) {
1220 		reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1221 		if (reg & PCCARD_CCR_STATUS_INTR)
1222 			pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1223 			    reg & ~PCCARD_CCR_STATUS_INTR);
1224 		else
1225 			doisr = 0;
1226 	}
1227 	if (pf->intr_handler != NULL && doisr)
1228 		pf->intr_handler(pf->intr_handler_arg);
1229 }
1230 
1231 static int
1232 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1233     int flags, driver_intr_t *intr, void *arg,
1234     void **cookiep, lwkt_serialize_t serializer)
1235 {
1236 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1237 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1238 	struct pccard_function *pf = ivar->pf;
1239 	int err;
1240 
1241 	if (pf->intr_handler != NULL)
1242 		panic("Only one interrupt handler per function allowed");
1243 	err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1244 				     pf, cookiep, serializer);
1245 	if (err != 0)
1246 		return (err);
1247 	pf->intr_handler = intr;
1248 	pf->intr_handler_arg = arg;
1249 	pf->intr_handler_cookie = *cookiep;
1250 	if (pccard_mfc(sc)) {
1251 		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1252 		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1253 		    PCCARD_CCR_OPTION_IREQ_ENABLE);
1254 	}
1255 	return (0);
1256 }
1257 
1258 static int
1259 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1260     void *cookie)
1261 {
1262 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1263 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1264 	struct pccard_function *pf = ivar->pf;
1265 	int ret;
1266 
1267 	if (pccard_mfc(sc)) {
1268 		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1269 		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1270 		    ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1271 	}
1272 	ret = bus_generic_teardown_intr(dev, child, r, cookie);
1273 	if (ret == 0) {
1274 		pf->intr_handler = NULL;
1275 		pf->intr_handler_arg = NULL;
1276 		pf->intr_handler_cookie = NULL;
1277 	}
1278 
1279 	return (ret);
1280 }
1281 
1282 static int
1283 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1284     struct resource *r)
1285 {
1286 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1287 	struct pccard_function *pf = ivar->pf;
1288 
1289 	switch(type) {
1290 	case SYS_RES_IOPORT:
1291 		/*
1292 		 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1293 		 * card.
1294 		 */
1295 		if (pccard_mfc(pf->sc))
1296 			pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1297 			    rman_get_size(r));
1298 		break;
1299 	default:
1300 		break;
1301 	}
1302 	return (bus_generic_activate_resource(brdev, child, type, rid, r));
1303 }
1304 
1305 static int
1306 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1307     int rid, struct resource *r)
1308 {
1309 	/* XXX undo pccard_activate_resource? XXX */
1310 	return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1311 }
1312 
1313 static device_method_t pccard_methods[] = {
1314 	/* Device interface */
1315 	DEVMETHOD(device_probe,		pccard_probe),
1316 	DEVMETHOD(device_attach,	pccard_attach),
1317 	DEVMETHOD(device_detach,	pccard_detach),
1318 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
1319 	DEVMETHOD(device_suspend,	pccard_suspend),
1320 	DEVMETHOD(device_resume,	pccard_resume),
1321 
1322 	/* Bus interface */
1323 	DEVMETHOD(bus_print_child,	pccard_print_child),
1324 	DEVMETHOD(bus_driver_added,	pccard_driver_added),
1325 	DEVMETHOD(bus_child_detached,	pccard_child_detached),
1326 	DEVMETHOD(bus_alloc_resource,	pccard_alloc_resource),
1327 	DEVMETHOD(bus_release_resource,	pccard_release_resource),
1328 	DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1329 	DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1330 	DEVMETHOD(bus_setup_intr,	pccard_setup_intr),
1331 	DEVMETHOD(bus_teardown_intr,	pccard_teardown_intr),
1332 	DEVMETHOD(bus_set_resource,	pccard_set_resource),
1333 	DEVMETHOD(bus_get_resource,	pccard_get_resource),
1334 	DEVMETHOD(bus_delete_resource,	pccard_delete_resource),
1335 	DEVMETHOD(bus_probe_nomatch,	pccard_probe_nomatch),
1336 	DEVMETHOD(bus_read_ivar,	pccard_read_ivar),
1337 	DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1338 	DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1339 
1340 	/* Card Interface */
1341 	DEVMETHOD(card_set_res_flags,	pccard_set_res_flags),
1342 	DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1343 	DEVMETHOD(card_attach_card,	pccard_attach_card),
1344 	DEVMETHOD(card_detach_card,	pccard_detach_card),
1345 	DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1346 	DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1347 	DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1348 	DEVMETHOD(card_cis_scan,	pccard_scan_cis),
1349 
1350 	{ 0, 0 }
1351 };
1352 
1353 static driver_t pccard_driver = {
1354 	"pccard",
1355 	pccard_methods,
1356 	sizeof(struct pccard_softc)
1357 };
1358 
1359 devclass_t	pccard_devclass;
1360 
1361 /* Maybe we need to have a slot device? */
1362 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1363 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1364 MODULE_VERSION(pccard, 1);
1365