xref: /dragonfly/sys/bus/pccard/pccard.c (revision e96fb831)
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  */
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 <sys/rman.h>
45 
46 #include <net/ethernet.h>
47 
48 #include <bus/pccard/pccardreg.h>
49 #include <bus/pccard/pccardvar.h>
50 #include <bus/pccard/pccard_cis.h>
51 
52 #include "power_if.h"
53 #include "card_if.h"
54 
55 #define PCCARDDEBUG
56 
57 /* sysctl vars */
58 SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
59 
60 int	pccard_debug = 0;
61 TUNABLE_INT("hw.pccard.debug", &pccard_debug);
62 SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
63     &pccard_debug, 0,
64   "pccard debug");
65 
66 int	pccard_cis_debug = 0;
67 TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
68 SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
69     &pccard_cis_debug, 0, "pccard CIS debug");
70 
71 #ifdef PCCARDDEBUG
72 #define	DPRINTF(arg) if (pccard_debug) kprintf arg
73 #define	DEVPRINTF(arg) if (pccard_debug) device_printf arg
74 #define PRVERBOSE(arg) kprintf arg
75 #define DEVPRVERBOSE(arg) device_printf arg
76 #else
77 #define	DPRINTF(arg)
78 #define	DEVPRINTF(arg)
79 #define PRVERBOSE(arg) if (bootverbose) kprintf arg
80 #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
81 #endif
82 
83 static int	pccard_ccr_read(struct pccard_function *pf, int ccr);
84 static void	pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
85 static int	pccard_attach_card(device_t dev);
86 static int	pccard_detach_card(device_t dev);
87 static void	pccard_function_init(struct pccard_function *pf);
88 static void	pccard_function_free(struct pccard_function *pf);
89 static int	pccard_function_enable(struct pccard_function *pf);
90 static void	pccard_function_disable(struct pccard_function *pf);
91 static int	pccard_compat_do_probe(device_t bus, device_t dev);
92 static int	pccard_compat_do_attach(device_t bus, device_t dev);
93 static int	pccard_add_children(device_t dev, int busno);
94 static int	pccard_probe(device_t dev);
95 static int	pccard_attach(device_t dev);
96 static int	pccard_detach(device_t dev);
97 static void	pccard_print_resources(struct resource_list *rl,
98 		    const char *name, int type, int count, const char *format);
99 static int	pccard_print_child(device_t dev, device_t child);
100 static int	pccard_set_resource(device_t dev, device_t child, int type,
101 		    int rid, u_long start, u_long count, int cpuid);
102 static int	pccard_get_resource(device_t dev, device_t child, int type,
103 		    int rid, u_long *startp, u_long *countp);
104 static void	pccard_delete_resource(device_t dev, device_t child, int type,
105 		    int rid);
106 static int	pccard_set_res_flags(device_t dev, device_t child, int type,
107 		    int rid, uint32_t flags);
108 static int	pccard_set_memory_offset(device_t dev, device_t child, int rid,
109 		    uint32_t offset, uint32_t *deltap);
110 static void	pccard_probe_nomatch(device_t cbdev, device_t child);
111 static int	pccard_read_ivar(device_t bus, device_t child, int which,
112 		    u_char *result);
113 static void	pccard_driver_added(device_t dev, driver_t *driver);
114 static struct resource *pccard_alloc_resource(device_t dev,
115 		    device_t child, int type, int *rid, u_long start,
116 		    u_long end, u_long count, u_int flags, int cpuid);
117 static int	pccard_release_resource(device_t dev, device_t child, int type,
118 		    int rid, struct resource *r);
119 static void	pccard_child_detached(device_t parent, device_t dev);
120 static void	pccard_intr(void *arg);
121 static int	pccard_setup_intr(device_t dev, device_t child,
122 		    struct resource *irq, int flags, driver_intr_t *intr,
123 		    void *arg, void **cookiep, lwkt_serialize_t serializer);
124 static int	pccard_teardown_intr(device_t dev, device_t child,
125 		    struct resource *r, void *cookie);
126 
127 static const struct pccard_product *
128 pccard_do_product_lookup(device_t bus, device_t dev,
129 			 const struct pccard_product *tab, size_t ent_size,
130 			 pccard_product_match_fn matchfn);
131 
132 
133 static int
134 pccard_ccr_read(struct pccard_function *pf, int ccr)
135 {
136 	return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
137 	    pf->pf_ccr_offset + ccr));
138 }
139 
140 static void
141 pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
142 {
143 	if ((pf->ccr_mask) & (1 << (ccr / 2))) {
144 		bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
145 		    pf->pf_ccr_offset + ccr, val);
146 	}
147 }
148 
149 static int
150 pccard_set_default_descr(device_t dev)
151 {
152 	const char *vendorstr, *prodstr;
153 	uint32_t vendor, prod;
154 	char *str;
155 
156 	vendorstr = pccard_get_vendor_str(dev);
157 	prodstr = pccard_get_product_str(dev);
158 	if (vendorstr != NULL && prodstr != NULL) {
159 		str = kmalloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
160 		    M_WAITOK);
161 		ksprintf(str, "%s %s", vendorstr, prodstr);
162 		device_set_desc_copy(dev, str);
163 		kfree(str, M_DEVBUF);
164 	} else {
165 		vendor = pccard_get_vendor(dev);
166 		prod = pccard_get_product(dev);
167 
168 		str = kmalloc(100, M_DEVBUF, M_WAITOK);
169 		ksnprintf(str, 100, "vendor=0x%x product=0x%x", vendor, prod);
170 		device_set_desc_copy(dev, str);
171 		kfree(str, M_DEVBUF);
172 	}
173 	return (0);
174 }
175 
176 static int
177 pccard_attach_card(device_t dev)
178 {
179 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
180 	struct pccard_function *pf;
181 	struct pccard_ivar *ivar;
182 	device_t child;
183 	int i;
184 
185 	/*
186 	 * this is here so that when socket_enable calls gettype, trt happens
187 	 */
188 	STAILQ_INIT(&sc->card.pf_head);
189 
190 	DEVPRINTF((dev, "chip_socket_enable\n"));
191 	POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
192 
193 	DEVPRINTF((dev, "read_cis\n"));
194 	pccard_read_cis(sc);
195 
196 	DEVPRINTF((dev, "check_cis_quirks\n"));
197 	pccard_check_cis_quirks(dev);
198 
199 	/*
200 	 * bail now if the card has no functions, or if there was an error in
201 	 * the cis.
202 	 */
203 
204 	if (sc->card.error) {
205 		device_printf(dev, "CARD ERROR!\n");
206 		return (1);
207 	}
208 	if (STAILQ_EMPTY(&sc->card.pf_head)) {
209 		device_printf(dev, "Card has no functions!\n");
210 		return (1);
211 	}
212 
213 	if (bootverbose || pccard_debug)
214 		pccard_print_cis(dev);
215 
216 	DEVPRINTF((dev, "functions scanning\n"));
217 	i = -1;
218 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
219 		i++;
220 		if (STAILQ_EMPTY(&pf->cfe_head)) {
221 			device_printf(dev,
222 			    "Function %d has no config entries.!\n", i);
223 			continue;
224 		}
225 		pf->sc = sc;
226 		pf->cfe = NULL;
227 		pf->dev = NULL;
228 	}
229 	DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
230 	    pccard_mfc(sc)));
231 
232 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
233 		if (STAILQ_EMPTY(&pf->cfe_head))
234 			continue;
235 		/*
236 		 * In NetBSD, the drivers are responsible for activating
237 		 * each function of a card.  I think that in FreeBSD we
238 		 * want to activate them enough for the usual bus_*_resource
239 		 * routines will do the right thing.  This many mean a
240 		 * departure from the current NetBSD model.
241 		 *
242 		 * This seems to work well in practice for most cards.
243 		 * However, there are two cases that are problematic.
244 		 * If a driver wishes to pick and chose which config
245 		 * entry to use, then this method falls down.  These
246 		 * are usually older cards.  In addition, there are
247 		 * some cards that have multiple hardware units on the
248 		 * cards, but presents only one CIS chain.  These cards
249 		 * are combination cards, but only one of these units
250 		 * can be on at a time.
251 		 */
252 		ivar = kmalloc(sizeof(struct pccard_ivar), M_DEVBUF,
253 		    M_WAITOK | M_ZERO);
254 		resource_list_init(&ivar->resources);
255 		child = device_add_child(dev, NULL, -1);
256 		device_set_ivars(child, ivar);
257 		ivar->pf = pf;
258 		pf->dev = child;
259 		/*
260 		 * XXX We might want to move the next three lines into
261 		 * XXX the pccard interface layer.  For the moment, this
262 		 * XXX is OK, but some drivers want to pick the config
263 		 * XXX entry to use as well as some address tweaks (mostly
264 		 * XXX due to bugs in decode logic that makes some
265 		 * XXX addresses illegal or broken).
266 		 */
267 		pccard_function_init(pf);
268 		if (sc->sc_enabled_count == 0)
269 			POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
270 		if (pccard_function_enable(pf) == 0 &&
271 		    pccard_set_default_descr(child) == 0 &&
272 		    device_probe_and_attach(child) == 0) {
273 			DEVPRINTF((sc->dev, "function %d CCR at %d "
274 			    "offset %x mask %x: "
275 			    "%x %x %x %x, %x %x %x %x, %x\n",
276 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
277 			    pf->ccr_mask, pccard_ccr_read(pf, 0x00),
278 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
279 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
280 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
281 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
282 		} else {
283 			if (pf->cfe != NULL)
284 				pccard_function_disable(pf);
285 		}
286 	}
287 	return (0);
288 }
289 
290 static int
291 pccard_detach_card(device_t dev)
292 {
293 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
294 	struct pccard_function *pf;
295 	struct pccard_config_entry *cfe;
296 	int state;
297 
298 	/*
299 	 * We are running on either the PCCARD socket's event thread
300 	 * or in user context detaching a device by user request.
301 	 */
302 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
303 		if (pf->dev == NULL)
304 			continue;
305 		state = device_get_state(pf->dev);
306 		if (state == DS_ATTACHED || state == DS_BUSY)
307 			device_detach(pf->dev);
308 		if (pf->cfe != NULL)
309 			pccard_function_disable(pf);
310 		pccard_function_free(pf);
311 		device_delete_child(dev, pf->dev);
312 	}
313 	if (sc->sc_enabled_count == 0)
314 		POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
315 
316 	while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
317 		while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
318 			STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
319 			kfree(cfe, M_DEVBUF);
320 		}
321 		STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
322 		kfree(pf, M_DEVBUF);
323 	}
324 	return (0);
325 }
326 
327 static const struct pccard_product *
328 pccard_do_product_lookup(device_t bus, device_t dev,
329     const struct pccard_product *tab, size_t ent_size,
330     pccard_product_match_fn matchfn)
331 {
332 	const struct pccard_product *ent;
333 	int matches;
334 	uint32_t vendor;
335 	uint32_t prod;
336 	const char *vendorstr;
337 	const char *prodstr;
338 	const char *cis3str;
339 	const char *cis4str;
340 
341 #ifdef DIAGNOSTIC
342 	if (sizeof *ent > ent_size)
343 		panic("pccard_product_lookup: bogus ent_size %jd",
344 		    (intmax_t) ent_size);
345 #endif
346 	vendor = pccard_get_vendor(dev);
347 	prod = pccard_get_product(dev);
348 	vendorstr = pccard_get_vendor_str(dev);
349 	prodstr = pccard_get_product_str(dev);
350 	cis3str = pccard_get_cis3_str(dev);
351 	cis4str = pccard_get_cis4_str(dev);
352 
353 	for (ent = tab; ent->pp_vendor != 0; ent =
354 	    (const struct pccard_product *) ((const char *) ent + ent_size)) {
355 		matches = 1;
356 		if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
357 		    ent->pp_product == PCCARD_PRODUCT_ANY &&
358 		    ent->pp_cis[0] == NULL &&
359 		    ent->pp_cis[1] == NULL) {
360 			if (ent->pp_name)
361 				device_printf(dev,
362 				    "Total wildcard entry ignored for %s\n",
363 				    ent->pp_name);
364 			continue;
365 		}
366 		if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
367 		    vendor != ent->pp_vendor)
368 			matches = 0;
369 		if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
370 		    prod != ent->pp_product)
371 			matches = 0;
372 		if (matches && ent->pp_cis[0] &&
373 		    (vendorstr == NULL ||
374 		    strcmp(ent->pp_cis[0], vendorstr) != 0))
375 			matches = 0;
376 		if (matches && ent->pp_cis[1] &&
377 		    (prodstr == NULL ||
378 		    strcmp(ent->pp_cis[1], prodstr) != 0))
379 			matches = 0;
380 		if (matches && ent->pp_cis[2] &&
381 		    (cis3str == NULL ||
382 		    strcmp(ent->pp_cis[2], cis3str) != 0))
383 			matches = 0;
384 		if (matches && ent->pp_cis[3] &&
385 		    (cis4str == NULL ||
386 		    strcmp(ent->pp_cis[3], cis4str) != 0))
387 			matches = 0;
388 		if (matchfn != NULL)
389 			matches = (*matchfn)(dev, ent, matches);
390 		if (matches)
391 			return (ent);
392 	}
393 	return (NULL);
394 }
395 
396 /*
397  * Initialize a PCCARD function.  May be called as long as the function is
398  * disabled.
399  *
400  * Note: pccard_function_init should not keep resources allocated.  It should
401  * only set them up ala isa pnp, set the values in the rl lists, and return.
402  * Any resource held after pccard_function_init is called is a bug.  However,
403  * the bus routines to get the resources also assume that pccard_function_init
404  * does this, so they need to be fixed too.
405  */
406 static void
407 pccard_function_init(struct pccard_function *pf)
408 {
409 	struct pccard_config_entry *cfe;
410 	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
411 	struct resource_list *rl = &devi->resources;
412 	struct resource_list_entry *rle;
413 	struct resource *r = NULL;
414 	device_t bus;
415 	u_long start, end, len;
416 	int i, rid, spaces;
417 
418 	if (pf->pf_flags & PFF_ENABLED) {
419 		kprintf("pccard_function_init: function is enabled");
420 		return;
421 	}
422 	bus = device_get_parent(pf->dev);
423 	/* Remember which configuration entry we are using. */
424 	STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
425 		if (cfe->iftype != PCCARD_IFTYPE_IO)
426 			continue;
427 		spaces = 0;
428 		for (i = 0; i < cfe->num_iospace; i++) {
429 			start = cfe->iospace[i].start;
430 			if (start)
431 				end = start + cfe->iospace[i].length - 1;
432 			else
433 				end = ~0UL;
434 			DEVPRINTF((bus, "I/O rid %d start %lx end %lx\n",
435 			    i, start, end));
436 			rid = i;
437 			len = cfe->iospace[i].length;
438 			r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
439 			    start, end, len, rman_make_alignment_flags(len));
440 			if (r == NULL)
441 				goto not_this_one;
442 			resource_list_add(rl, SYS_RES_IOPORT,
443 			    rid, rman_get_start(r), rman_get_end(r),
444 			    cfe->iospace[i].length, -1);
445 			rle = resource_list_find(rl, SYS_RES_IOPORT, rid);
446 			if (rle == NULL)
447 				panic("Cannot add resource rid %d IOPORT", rid);
448 			rle->res = r;
449 			spaces++;
450 		}
451 		for (i = 0; i < cfe->num_memspace; i++) {
452 			start = cfe->memspace[i].hostaddr;
453 			if (start)
454 				end = start + cfe->memspace[i].length - 1;
455 			else
456 				end = ~0UL;
457 			DEVPRINTF((bus, "Memory rid %d start %lx end %lx\n",
458 			    i, start, end));
459 			rid = i;
460 			len = cfe->memspace[i].length;
461 			r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
462 			    start, end, len, rman_make_alignment_flags(len));
463 			if (r == NULL)
464 				goto not_this_one;
465 			resource_list_add(rl, SYS_RES_MEMORY,
466 			    rid, rman_get_start(r), rman_get_end(r),
467 			    cfe->memspace[i].length, -1);
468 			rle = resource_list_find(rl, SYS_RES_MEMORY, rid);
469 			if (rle == NULL)
470 				panic("Cannot add resource rid %d MEM", rid);
471 			rle->res = r;
472 			spaces++;
473 		}
474 		if (spaces == 0) {
475 			DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
476 			goto not_this_one;
477 		}
478 		if (cfe->irqmask) {
479 			rid = 0;
480 			r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
481 			    RF_SHAREABLE);
482 			if (r == NULL)
483 				goto not_this_one;
484 			resource_list_add(rl, SYS_RES_IRQ, rid,
485 			    rman_get_start(r), rman_get_end(r), 1,
486 			    rman_get_cpuid(r));
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, int cpuid)
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 	    cpuid);
908 	if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
909 	    type, &rid, start, start + count - 1, count, 0, -1))
910 		return 0;
911 	else
912 		return ENOMEM;
913 }
914 
915 static int
916 pccard_get_resource(device_t dev, device_t child, int type, int rid,
917     u_long *startp, u_long *countp)
918 {
919 	struct pccard_ivar *devi = PCCARD_IVAR(child);
920 	struct resource_list *rl = &devi->resources;
921 	struct resource_list_entry *rle;
922 
923 	rle = resource_list_find(rl, type, rid);
924 	if (rle == NULL)
925 		return (ENOENT);
926 
927 	if (startp != NULL)
928 		*startp = rle->start;
929 	if (countp != NULL)
930 		*countp = rle->count;
931 
932 	return (0);
933 }
934 
935 static void
936 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
937 {
938 	struct pccard_ivar *devi = PCCARD_IVAR(child);
939 	struct resource_list *rl = &devi->resources;
940 	resource_list_delete(rl, type, rid);
941 }
942 
943 static int
944 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
945     uint32_t flags)
946 {
947 	return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
948 	    rid, flags));
949 }
950 
951 static int
952 pccard_set_memory_offset(device_t dev, device_t child, int rid,
953     uint32_t offset, uint32_t *deltap)
954 
955 {
956 	return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
957 	    offset, deltap));
958 }
959 
960 static void
961 pccard_probe_nomatch(device_t bus, device_t child)
962 {
963 	struct pccard_ivar *devi = PCCARD_IVAR(child);
964 	struct pccard_function *pf = devi->pf;
965 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
966 	int i;
967 
968 	device_printf(bus, "<unknown card>");
969 	kprintf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
970 	    "at function %d\n", sc->card.manufacturer, sc->card.product,
971 	    pf->function, pf->number);
972 	device_printf(bus, "   CIS info: ");
973 	for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++)
974 		kprintf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
975 	kprintf("\n");
976 	return;
977 }
978 
979 static int
980 pccard_child_location_str(device_t bus, device_t child, char *buf,
981     size_t buflen)
982 {
983 	struct pccard_ivar *devi = PCCARD_IVAR(child);
984 	struct pccard_function *pf = devi->pf;
985 
986 	ksnprintf(buf, buflen, "function=%d", pf->number);
987 	return (0);
988 }
989 
990 /* XXX Maybe this should be in subr_bus? */
991 static void
992 pccard_safe_quote(char *dst, const char *src, size_t len)
993 {
994 	char *walker = dst, *ep = dst + len - 1;
995 
996 	if (len == 0)
997 		return;
998 	while (walker < ep)
999 	{
1000 		if (*src == '"') {
1001 			if (ep - walker < 2)
1002 				break;
1003 			*walker++ = '\\';
1004 		}
1005 		*walker++ = *src++;
1006 	}
1007 	*walker = '\0';
1008 }
1009 
1010 static int
1011 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1012     size_t buflen)
1013 {
1014 	struct pccard_ivar *devi = PCCARD_IVAR(child);
1015 	struct pccard_function *pf = devi->pf;
1016 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
1017 	char cis0[128], cis1[128];
1018 
1019 	pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0));
1020 	pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1));
1021 	ksnprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
1022 	    "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
1023 	    sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function);
1024 	return (0);
1025 }
1026 
1027 static int
1028 pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
1029 {
1030 	struct pccard_ivar *devi = PCCARD_IVAR(child);
1031 	struct pccard_function *pf = devi->pf;
1032 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
1033 
1034 	if (!pf)
1035 		panic("No pccard function pointer");
1036 	switch (which) {
1037 	default:
1038 		return (EINVAL);
1039 	case PCCARD_IVAR_ETHADDR:
1040 		*(const uint8_t **)result = pf->pf_funce_lan_nid;
1041 		break;
1042 	case PCCARD_IVAR_VENDOR:
1043 		*(uint32_t *)result = sc->card.manufacturer;
1044 		break;
1045 	case PCCARD_IVAR_PRODUCT:
1046 		*(uint32_t *)result = sc->card.product;
1047 		break;
1048 	case PCCARD_IVAR_PRODEXT:
1049 		*(uint16_t *)result = sc->card.prodext;
1050 		break;
1051 	case PCCARD_IVAR_FUNCTION:
1052 		*(uint32_t *)result = pf->function;
1053 		break;
1054 	case PCCARD_IVAR_FUNCTION_NUMBER:
1055 		*(uint32_t *)result = pf->number;
1056 		break;
1057 	case PCCARD_IVAR_VENDOR_STR:
1058 		*(const char **)result = sc->card.cis1_info[0];
1059 		break;
1060 	case PCCARD_IVAR_PRODUCT_STR:
1061 		*(const char **)result = sc->card.cis1_info[1];
1062 		break;
1063 	case PCCARD_IVAR_CIS3_STR:
1064 		*(const char **)result = sc->card.cis1_info[2];
1065 		break;
1066 	case PCCARD_IVAR_CIS4_STR:
1067 		*(const char **)result = sc->card.cis1_info[3];
1068 		break;
1069 	}
1070 	return (0);
1071 }
1072 
1073 static void
1074 pccard_driver_added(device_t dev, driver_t *driver)
1075 {
1076 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1077 	struct pccard_function *pf;
1078 	device_t child;
1079 
1080 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1081 		if (STAILQ_EMPTY(&pf->cfe_head))
1082 			continue;
1083 		child = pf->dev;
1084 		if (device_get_state(child) != DS_NOTPRESENT)
1085 			continue;
1086 		if (pccard_function_enable(pf) == 0 &&
1087 		    device_probe_and_attach(child) == 0) {
1088 			DEVPRINTF((sc->dev, "function %d CCR at %d "
1089 			    "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1090 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1091 			    pccard_ccr_read(pf, 0x00),
1092 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1093 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1094 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1095 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1096 		} else {
1097 			if (pf->cfe != NULL)
1098 				pccard_function_disable(pf);
1099 		}
1100 	}
1101 	return;
1102 }
1103 
1104 static struct resource *
1105 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1106     u_long start, u_long end, u_long count, u_int flags, int cpuid)
1107 {
1108 	struct pccard_ivar *dinfo;
1109 	struct resource_list_entry *rle = NULL;
1110 	int passthrough = (device_get_parent(child) != dev);
1111 	int isdefault = (start == 0 && end == ~0UL && count == 1);
1112 	struct resource *r = NULL;
1113 
1114 	/* XXX I'm no longer sure this is right */
1115 	if (passthrough) {
1116 		return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1117 		    type, rid, start, end, count, flags, cpuid));
1118 	}
1119 
1120 	dinfo = device_get_ivars(child);
1121 	rle = resource_list_find(&dinfo->resources, type, *rid);
1122 
1123 	if (rle == NULL && isdefault)
1124 		return (NULL);	/* no resource of that type/rid */
1125 	if (rle == NULL || rle->res == NULL) {
1126 		/* XXX Need to adjust flags */
1127 		r = bus_alloc_resource(dev, type, rid, start, end,
1128 		  count, flags);
1129 		if (r == NULL)
1130 		    goto bad;
1131 		resource_list_add(&dinfo->resources, type, *rid,
1132 		  rman_get_start(r), rman_get_end(r), count,
1133 		  rman_get_cpuid(r));
1134 		rle = resource_list_find(&dinfo->resources, type, *rid);
1135 		if (!rle)
1136 		    goto bad;
1137 		rle->res = r;
1138 	}
1139 	/*
1140 	 * If dev doesn't own the device, then we can't give this device
1141 	 * out.
1142 	 */
1143 	if (rman_get_device(rle->res) != dev)
1144 		return (NULL);
1145 	rman_set_device(rle->res, child);
1146 	if (flags & RF_ACTIVE)
1147 		BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1148 	return (rle->res);
1149 bad:;
1150 	device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1151 	return (NULL);
1152 }
1153 
1154 static int
1155 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1156     struct resource *r)
1157 {
1158 	struct pccard_ivar *dinfo;
1159 	int passthrough = (device_get_parent(child) != dev);
1160 	struct resource_list_entry *rle = NULL;
1161 
1162 	if (passthrough)
1163 		return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1164 		    type, rid, r);
1165 
1166 	dinfo = device_get_ivars(child);
1167 
1168 	rle = resource_list_find(&dinfo->resources, type, rid);
1169 
1170 	if (!rle) {
1171 		device_printf(dev, "Allocated resource not found, "
1172 		    "%d %x %lx %lx\n",
1173 		    type, rid, rman_get_start(r), rman_get_size(r));
1174 		return ENOENT;
1175 	}
1176 	if (!rle->res) {
1177 		device_printf(dev, "Allocated resource not recorded\n");
1178 		return ENOENT;
1179 	}
1180 	/*
1181 	 * Deactivate the resource (since it is being released), and
1182 	 * assign it to the bus.
1183 	 */
1184 	BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1185 	rman_set_device(rle->res, dev);
1186 	return (0);
1187 }
1188 
1189 static void
1190 pccard_child_detached(device_t parent, device_t dev)
1191 {
1192 	struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1193 	struct pccard_function *pf = ivar->pf;
1194 
1195 	pccard_function_disable(pf);
1196 }
1197 
1198 static void
1199 pccard_intr(void *arg)
1200 {
1201 	struct pccard_function *pf = (struct pccard_function*) arg;
1202 	int reg;
1203 	int doisr = 1;
1204 
1205 	/*
1206 	 * MFC cards know if they interrupted, so we have to ack the
1207 	 * interrupt and call the ISR.  Non-MFC cards don't have these
1208 	 * bits, so they always get called.  Many non-MFC cards have
1209 	 * this bit set always upon read, but some do not.
1210 	 *
1211 	 * We always ack the interrupt, even if there's no ISR
1212 	 * for the card.  This is done on the theory that acking
1213 	 * the interrupt will pacify the card enough to keep an
1214 	 * interrupt storm from happening.  Of course this won't
1215 	 * help in the non-MFC case.
1216 	 *
1217 	 * This has no impact for MPSAFEness of the client drivers.
1218 	 * We register this with whatever flags the intr_handler
1219 	 * was registered with.  All these functions are MPSAFE.
1220 	 */
1221 	if (pccard_mfc(pf->sc)) {
1222 		reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1223 		if (reg & PCCARD_CCR_STATUS_INTR)
1224 			pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1225 			    reg & ~PCCARD_CCR_STATUS_INTR);
1226 		else
1227 			doisr = 0;
1228 	}
1229 	if (pf->intr_handler != NULL && doisr)
1230 		pf->intr_handler(pf->intr_handler_arg);
1231 }
1232 
1233 static int
1234 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1235     int flags, driver_intr_t *intr, void *arg,
1236     void **cookiep, lwkt_serialize_t serializer)
1237 {
1238 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1239 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1240 	struct pccard_function *pf = ivar->pf;
1241 	int err;
1242 
1243 	if (pf->intr_handler != NULL)
1244 		panic("Only one interrupt handler per function allowed");
1245 	err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1246 				     pf, cookiep, serializer);
1247 	if (err != 0)
1248 		return (err);
1249 	pf->intr_handler = intr;
1250 	pf->intr_handler_arg = arg;
1251 	pf->intr_handler_cookie = *cookiep;
1252 	if (pccard_mfc(sc)) {
1253 		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1254 		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1255 		    PCCARD_CCR_OPTION_IREQ_ENABLE);
1256 	}
1257 	return (0);
1258 }
1259 
1260 static int
1261 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1262     void *cookie)
1263 {
1264 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1265 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1266 	struct pccard_function *pf = ivar->pf;
1267 	int ret;
1268 
1269 	if (pccard_mfc(sc)) {
1270 		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1271 		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1272 		    ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1273 	}
1274 	ret = bus_generic_teardown_intr(dev, child, r, cookie);
1275 	if (ret == 0) {
1276 		pf->intr_handler = NULL;
1277 		pf->intr_handler_arg = NULL;
1278 		pf->intr_handler_cookie = NULL;
1279 	}
1280 
1281 	return (ret);
1282 }
1283 
1284 static int
1285 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1286     struct resource *r)
1287 {
1288 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1289 	struct pccard_function *pf = ivar->pf;
1290 
1291 	switch(type) {
1292 	case SYS_RES_IOPORT:
1293 		/*
1294 		 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1295 		 * card.
1296 		 */
1297 		if (pccard_mfc(pf->sc))
1298 			pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1299 			    rman_get_size(r));
1300 		break;
1301 	default:
1302 		break;
1303 	}
1304 	return (bus_generic_activate_resource(brdev, child, type, rid, r));
1305 }
1306 
1307 static int
1308 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1309     int rid, struct resource *r)
1310 {
1311 	/* XXX undo pccard_activate_resource? XXX */
1312 	return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1313 }
1314 
1315 static device_method_t pccard_methods[] = {
1316 	/* Device interface */
1317 	DEVMETHOD(device_probe,		pccard_probe),
1318 	DEVMETHOD(device_attach,	pccard_attach),
1319 	DEVMETHOD(device_detach,	pccard_detach),
1320 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
1321 	DEVMETHOD(device_suspend,	pccard_suspend),
1322 	DEVMETHOD(device_resume,	pccard_resume),
1323 
1324 	/* Bus interface */
1325 	DEVMETHOD(bus_print_child,	pccard_print_child),
1326 	DEVMETHOD(bus_driver_added,	pccard_driver_added),
1327 	DEVMETHOD(bus_child_detached,	pccard_child_detached),
1328 	DEVMETHOD(bus_alloc_resource,	pccard_alloc_resource),
1329 	DEVMETHOD(bus_release_resource,	pccard_release_resource),
1330 	DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1331 	DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1332 	DEVMETHOD(bus_setup_intr,	pccard_setup_intr),
1333 	DEVMETHOD(bus_teardown_intr,	pccard_teardown_intr),
1334 	DEVMETHOD(bus_set_resource,	pccard_set_resource),
1335 	DEVMETHOD(bus_get_resource,	pccard_get_resource),
1336 	DEVMETHOD(bus_delete_resource,	pccard_delete_resource),
1337 	DEVMETHOD(bus_probe_nomatch,	pccard_probe_nomatch),
1338 	DEVMETHOD(bus_read_ivar,	pccard_read_ivar),
1339 	DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1340 	DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1341 
1342 	/* Card Interface */
1343 	DEVMETHOD(card_set_res_flags,	pccard_set_res_flags),
1344 	DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1345 	DEVMETHOD(card_attach_card,	pccard_attach_card),
1346 	DEVMETHOD(card_detach_card,	pccard_detach_card),
1347 	DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1348 	DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1349 	DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1350 	DEVMETHOD(card_cis_scan,	pccard_scan_cis),
1351 
1352 	{ 0, 0 }
1353 };
1354 
1355 static driver_t pccard_driver = {
1356 	"pccard",
1357 	pccard_methods,
1358 	sizeof(struct pccard_softc)
1359 };
1360 
1361 devclass_t	pccard_devclass;
1362 
1363 /* Maybe we need to have a slot device? */
1364 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, NULL, NULL);
1365 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, NULL, NULL);
1366 MODULE_VERSION(pccard, 1);
1367