xref: /dragonfly/sys/bus/pccard/pccard.c (revision 82bb7981)
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 		    const char *desc);
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
pccard_ccr_read(struct pccard_function * pf,int ccr)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
pccard_ccr_write(struct pccard_function * pf,int ccr,int val)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
pccard_set_default_descr(device_t dev)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
pccard_attach_card(device_t dev)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
pccard_detach_card(device_t dev)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 *
pccard_do_product_lookup(device_t bus,device_t dev,const struct pccard_product * tab,size_t ent_size,pccard_product_match_fn matchfn)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
pccard_function_init(struct pccard_function * pf)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 = NULL;
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, -1);
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, -1);
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 			    rman_get_cpuid(r));
488 			rle = resource_list_find(rl, SYS_RES_IRQ, rid);
489 			if (rle == NULL)
490 				panic("Cannot add resource rid %d IRQ", rid);
491 			rle->res = r;
492 		}
493 		/* If we get to here, we've allocated all we need */
494 		pf->cfe = cfe;
495 		break;
496 	    not_this_one:;
497 		DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
498 		    cfe->number));
499 #if 0 /* YYY */
500 		resource_list_purge(rl);
501 #endif
502 	}
503 }
504 
505 /*
506  * Free resources allocated by pccard_function_init(), May be called as long
507  * as the function is disabled.
508  *
509  * NOTE: This function should be unnecessary.  pccard_function_init should
510  * never keep resources initialized.
511  */
512 static void
pccard_function_free(struct pccard_function * pf)513 pccard_function_free(struct pccard_function *pf)
514 {
515 	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
516 	struct resource_list_entry *rle;
517 
518 	if (pf->pf_flags & PFF_ENABLED) {
519 		kprintf("pccard_function_init: function is enabled");
520 		return;
521 	}
522 
523 	SLIST_FOREACH(rle, &devi->resources, link) {
524 		if (rle->res) {
525 			if (rman_get_device(rle->res) != pf->sc->dev)
526 				device_printf(pf->sc->dev,
527 				    "function_free: Resource still owned by "
528 				    "child, oops. "
529 				    "(type=%d, rid=%d, addr=%lx)\n",
530 				    rle->type, rle->rid,
531 				    rman_get_start(rle->res));
532 			BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
533 			    pf->sc->dev, rle->type, rle->rid, rle->res);
534 			rle->res = NULL;
535 		}
536 	}
537 	resource_list_free(&devi->resources);
538 }
539 
540 static void
pccard_mfc_adjust_iobase(struct pccard_function * pf,bus_addr_t addr,bus_addr_t offset,bus_size_t size)541 pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
542     bus_addr_t offset, bus_size_t size)
543 {
544 	bus_size_t iosize, tmp;
545 
546 	if (addr != 0) {
547 		if (pf->pf_mfc_iomax == 0) {
548 			pf->pf_mfc_iobase = addr + offset;
549 			pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
550 		} else {
551 			/* this makes the assumption that nothing overlaps */
552 			if (pf->pf_mfc_iobase > addr + offset)
553 				pf->pf_mfc_iobase = addr + offset;
554 			if (pf->pf_mfc_iomax < addr + offset + size)
555 				pf->pf_mfc_iomax = addr + offset + size;
556 		}
557 	}
558 
559 	tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
560 	/* round up to nearest (2^n)-1 */
561 	for (iosize = 1; iosize < tmp; iosize <<= 1)
562 		;
563 	iosize--;
564 
565 	DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
566 	    (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
567 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
568 	    pf->pf_mfc_iobase & 0xff);
569 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
570 	    (pf->pf_mfc_iobase >> 8) & 0xff);
571 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
572 	pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
573 	pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
574 }
575 
576 /* Enable a PCCARD function */
577 static int
pccard_function_enable(struct pccard_function * pf)578 pccard_function_enable(struct pccard_function *pf)
579 {
580 	struct pccard_function *tmp;
581 	int reg;
582 	device_t dev = pf->sc->dev;
583 
584 	if (pf->cfe == NULL) {
585 		DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
586 		return (ENOMEM);
587 	}
588 
589 	/*
590 	 * Increase the reference count on the socket, enabling power, if
591 	 * necessary.
592 	 */
593 	pf->sc->sc_enabled_count++;
594 
595 	if (pf->pf_flags & PFF_ENABLED) {
596 		/*
597 		 * Don't do anything if we're already enabled.
598 		 */
599 		return (0);
600 	}
601 
602 	/*
603 	 * it's possible for different functions' CCRs to be in the same
604 	 * underlying page.  Check for that.
605 	 */
606 	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
607 		if ((tmp->pf_flags & PFF_ENABLED) &&
608 		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
609 		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
610 		    (tmp->ccr_base - tmp->pf_ccr_offset +
611 		    tmp->pf_ccr_realsize))) {
612 			pf->pf_ccrt = tmp->pf_ccrt;
613 			pf->pf_ccrh = tmp->pf_ccrh;
614 			pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
615 
616 			/*
617 			 * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
618 			 * tmp->ccr_base) + pf->ccr_base;
619 			 */
620 			/* pf->pf_ccr_offset =
621 			    (tmp->pf_ccr_offset + pf->ccr_base) -
622 			    tmp->ccr_base; */
623 			pf->pf_ccr_window = tmp->pf_ccr_window;
624 			break;
625 		}
626 	}
627 	if (tmp == NULL) {
628 		pf->ccr_rid = 0;
629 		pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
630 		    &pf->ccr_rid, 0, ~0, 1 << 10, RF_ACTIVE);
631 		if (!pf->ccr_res)
632 			goto bad;
633 		DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
634 		    rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
635 		    pf->ccr_base));
636 		CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
637 		    pf->ccr_rid, PCCARD_A_MEM_ATTR);
638 		CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
639 		    pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
640 		pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
641 		pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
642 		pf->pf_ccr_realsize = 1;
643 	}
644 
645 	reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
646 	reg |= PCCARD_CCR_OPTION_LEVIREQ;
647 	if (pccard_mfc(pf->sc)) {
648 		reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
649 			PCCARD_CCR_OPTION_ADDR_DECODE);
650 		/* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
651 	}
652 	pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
653 
654 	reg = 0;
655 	if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
656 		reg |= PCCARD_CCR_STATUS_IOIS8;
657 	if (pf->cfe->flags & PCCARD_CFE_AUDIO)
658 		reg |= PCCARD_CCR_STATUS_AUDIO;
659 	pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
660 
661 	pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
662 
663 	if (pccard_mfc(pf->sc))
664 		pccard_mfc_adjust_iobase(pf, 0, 0, 0);
665 
666 #ifdef PCCARDDEBUG
667 	if (pccard_debug) {
668 		STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
669 			device_printf(tmp->sc->dev,
670 			    "function %d CCR at %d offset %x: "
671 			    "%x %x %x %x, %x %x %x %x, %x\n",
672 			    tmp->number, tmp->pf_ccr_window,
673 			    tmp->pf_ccr_offset,
674 			    pccard_ccr_read(tmp, 0x00),
675 			    pccard_ccr_read(tmp, 0x02),
676 			    pccard_ccr_read(tmp, 0x04),
677 			    pccard_ccr_read(tmp, 0x06),
678 			    pccard_ccr_read(tmp, 0x0A),
679 			    pccard_ccr_read(tmp, 0x0C),
680 			    pccard_ccr_read(tmp, 0x0E),
681 			    pccard_ccr_read(tmp, 0x10),
682 			    pccard_ccr_read(tmp, 0x12));
683 		}
684 	}
685 #endif
686 	pf->pf_flags |= PFF_ENABLED;
687 	return (0);
688 
689  bad:
690 	/*
691 	 * Decrement the reference count, and power down the socket, if
692 	 * necessary.
693 	 */
694 	pf->sc->sc_enabled_count--;
695 	DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
696 
697 	return (1);
698 }
699 
700 /* Disable PCCARD function. */
701 static void
pccard_function_disable(struct pccard_function * pf)702 pccard_function_disable(struct pccard_function *pf)
703 {
704 	struct pccard_function *tmp;
705 	device_t dev = pf->sc->dev;
706 
707 	if (pf->cfe == NULL)
708 		panic("pccard_function_disable: function not initialized");
709 
710 	if ((pf->pf_flags & PFF_ENABLED) == 0) {
711 		/*
712 		 * Don't do anything if we're already disabled.
713 		 */
714 		return;
715 	}
716 
717 	if (pf->intr_handler != NULL) {
718 		struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
719 		struct resource_list_entry *rle =
720 		    resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
721 		if (rle == NULL)
722 			panic("Can't disable an interrupt with no IRQ res");
723 		BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
724 		    pf->intr_handler_cookie);
725 	}
726 
727 	/*
728 	 * it's possible for different functions' CCRs to be in the same
729 	 * underlying page.  Check for that.  Note we mark us as disabled
730 	 * first to avoid matching ourself.
731 	 */
732 
733 	pf->pf_flags &= ~PFF_ENABLED;
734 	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
735 		if ((tmp->pf_flags & PFF_ENABLED) &&
736 		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
737 		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
738 		    (tmp->ccr_base - tmp->pf_ccr_offset +
739 		    tmp->pf_ccr_realsize)))
740 			break;
741 	}
742 
743 	/* Not used by anyone else; unmap the CCR. */
744 	if (tmp == NULL) {
745 		bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
746 		    pf->ccr_res);
747 		pf->ccr_res = NULL;
748 	}
749 
750 	/*
751 	 * Decrement the reference count, and power down the socket, if
752 	 * necessary.
753 	 */
754 	pf->sc->sc_enabled_count--;
755 }
756 
757 /*
758  * simulate the old "probe" routine.  In the new world order, the driver
759  * needs to grab devices while in the old they were assigned to the device by
760  * the pccardd process.  These symbols are exported to the upper layers.
761  */
762 static int
pccard_compat_do_probe(device_t bus,device_t dev)763 pccard_compat_do_probe(device_t bus, device_t dev)
764 {
765 	return (CARD_COMPAT_MATCH(dev));
766 }
767 
768 static int
pccard_compat_do_attach(device_t bus,device_t dev)769 pccard_compat_do_attach(device_t bus, device_t dev)
770 {
771 	int err;
772 
773 	err = CARD_COMPAT_PROBE(dev);
774 	if (err <= 0)
775 		err = CARD_COMPAT_ATTACH(dev);
776 	return (err);
777 }
778 
779 #define PCCARD_NPORT	2
780 #define PCCARD_NMEM	5
781 #define PCCARD_NIRQ	1
782 #define PCCARD_NDRQ	0
783 
784 static int
pccard_add_children(device_t dev,int busno)785 pccard_add_children(device_t dev, int busno)
786 {
787 	/* Call parent to scan for any current children */
788 	return (0);
789 }
790 
791 static int
pccard_probe(device_t dev)792 pccard_probe(device_t dev)
793 {
794 	device_set_desc(dev, "16-bit PCCard bus");
795 	return (pccard_add_children(dev, device_get_unit(dev)));
796 }
797 
798 static int
pccard_attach(device_t dev)799 pccard_attach(device_t dev)
800 {
801 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
802 
803 	sc->dev = dev;
804 	sc->sc_enabled_count = 0;
805 	return (bus_generic_attach(dev));
806 }
807 
808 static int
pccard_detach(device_t dev)809 pccard_detach(device_t dev)
810 {
811 	pccard_detach_card(dev);
812 	return 0;
813 }
814 
815 static int
pccard_suspend(device_t self)816 pccard_suspend(device_t self)
817 {
818 	pccard_detach_card(self);
819 	return (0);
820 }
821 
822 static
823 int
pccard_resume(device_t self)824 pccard_resume(device_t self)
825 {
826 	return (0);
827 }
828 
829 static void
pccard_print_resources(struct resource_list * rl,const char * name,int type,int count,const char * format)830 pccard_print_resources(struct resource_list *rl, const char *name, int type,
831     int count, const char *format)
832 {
833 	struct resource_list_entry *rle;
834 	int printed;
835 	int i;
836 
837 	printed = 0;
838 	for (i = 0; i < count; i++) {
839 		rle = resource_list_find(rl, type, i);
840 		if (rle != NULL) {
841 			if (printed == 0)
842 				kprintf(" %s ", name);
843 			else if (printed > 0)
844 				kprintf(",");
845 			printed++;
846 			kprintf(format, rle->start);
847 			if (rle->count > 1) {
848 				kprintf("-");
849 				kprintf(format, rle->start + rle->count - 1);
850 			}
851 		} else if (i > 3) {
852 			/* check the first few regardless */
853 			break;
854 		}
855 	}
856 }
857 
858 static int
pccard_print_child(device_t dev,device_t child)859 pccard_print_child(device_t dev, device_t child)
860 {
861 	struct pccard_ivar *devi = PCCARD_IVAR(child);
862 	struct resource_list *rl = &devi->resources;
863 	int retval = 0;
864 
865 	retval += bus_print_child_header(dev, child);
866 	retval += kprintf(" at");
867 
868 	if (devi != NULL) {
869 		pccard_print_resources(rl, "port", SYS_RES_IOPORT,
870 		    PCCARD_NPORT, "%#lx");
871 		pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
872 		    PCCARD_NMEM, "%#lx");
873 		pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
874 		    "%ld");
875 		pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
876 		    "%ld");
877 		retval += kprintf(" function %d config %d", devi->pf->number,
878 		    devi->pf->cfe->number);
879 	}
880 
881 	retval += bus_print_child_footer(dev, child);
882 
883 	return (retval);
884 }
885 
886 static int
pccard_set_resource(device_t dev,device_t child,int type,int rid,u_long start,u_long count,int cpuid)887 pccard_set_resource(device_t dev, device_t child, int type, int rid,
888     u_long start, u_long count, int cpuid)
889 {
890 	struct pccard_ivar *devi = PCCARD_IVAR(child);
891 	struct resource_list *rl = &devi->resources;
892 
893 	if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
894 	    && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
895 		return (EINVAL);
896 	if (rid < 0)
897 		return (EINVAL);
898 	if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
899 		return (EINVAL);
900 	if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
901 		return (EINVAL);
902 	if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
903 		return (EINVAL);
904 	if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
905 		return (EINVAL);
906 
907 	resource_list_add(rl, type, rid, start, start + count - 1, count,
908 	    cpuid);
909 	if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
910 	    type, &rid, start, start + count - 1, count, 0, -1))
911 		return 0;
912 	else
913 		return ENOMEM;
914 }
915 
916 static int
pccard_get_resource(device_t dev,device_t child,int type,int rid,u_long * startp,u_long * countp)917 pccard_get_resource(device_t dev, device_t child, int type, int rid,
918     u_long *startp, u_long *countp)
919 {
920 	struct pccard_ivar *devi = PCCARD_IVAR(child);
921 	struct resource_list *rl = &devi->resources;
922 	struct resource_list_entry *rle;
923 
924 	rle = resource_list_find(rl, type, rid);
925 	if (rle == NULL)
926 		return (ENOENT);
927 
928 	if (startp != NULL)
929 		*startp = rle->start;
930 	if (countp != NULL)
931 		*countp = rle->count;
932 
933 	return (0);
934 }
935 
936 static void
pccard_delete_resource(device_t dev,device_t child,int type,int rid)937 pccard_delete_resource(device_t dev, device_t child, int type, int rid)
938 {
939 	struct pccard_ivar *devi = PCCARD_IVAR(child);
940 	struct resource_list *rl = &devi->resources;
941 	resource_list_delete(rl, type, rid);
942 }
943 
944 static int
pccard_set_res_flags(device_t dev,device_t child,int type,int rid,uint32_t flags)945 pccard_set_res_flags(device_t dev, device_t child, int type, int rid,
946     uint32_t flags)
947 {
948 	return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type,
949 	    rid, flags));
950 }
951 
952 static int
pccard_set_memory_offset(device_t dev,device_t child,int rid,uint32_t offset,uint32_t * deltap)953 pccard_set_memory_offset(device_t dev, device_t child, int rid,
954     uint32_t offset, uint32_t *deltap)
955 
956 {
957 	return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid,
958 	    offset, deltap));
959 }
960 
961 static void
pccard_probe_nomatch(device_t bus,device_t child)962 pccard_probe_nomatch(device_t bus, device_t child)
963 {
964 	struct pccard_ivar *devi = PCCARD_IVAR(child);
965 	struct pccard_function *pf = devi->pf;
966 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
967 	int i;
968 
969 	device_printf(bus, "<unknown card>");
970 	kprintf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) "
971 	    "at function %d\n", sc->card.manufacturer, sc->card.product,
972 	    pf->function, pf->number);
973 	device_printf(bus, "   CIS info: ");
974 	for (i = 0; i < 4 && sc->card.cis1_info[i] != NULL; i++)
975 		kprintf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
976 	kprintf("\n");
977 	return;
978 }
979 
980 static int
pccard_child_location_str(device_t bus,device_t child,char * buf,size_t buflen)981 pccard_child_location_str(device_t bus, device_t child, char *buf,
982     size_t buflen)
983 {
984 	struct pccard_ivar *devi = PCCARD_IVAR(child);
985 	struct pccard_function *pf = devi->pf;
986 
987 	ksnprintf(buf, buflen, "function=%d", pf->number);
988 	return (0);
989 }
990 
991 /* XXX Maybe this should be in subr_bus? */
992 static void
pccard_safe_quote(char * dst,const char * src,size_t len)993 pccard_safe_quote(char *dst, const char *src, size_t len)
994 {
995 	char *walker = dst, *ep = dst + len - 1;
996 
997 	if (len == 0)
998 		return;
999 	while (walker < ep)
1000 	{
1001 		if (*src == '"') {
1002 			if (ep - walker < 2)
1003 				break;
1004 			*walker++ = '\\';
1005 		}
1006 		*walker++ = *src++;
1007 	}
1008 	*walker = '\0';
1009 }
1010 
1011 static int
pccard_child_pnpinfo_str(device_t bus,device_t child,char * buf,size_t buflen)1012 pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf,
1013     size_t buflen)
1014 {
1015 	struct pccard_ivar *devi = PCCARD_IVAR(child);
1016 	struct pccard_function *pf = devi->pf;
1017 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
1018 	char cis0[128], cis1[128];
1019 
1020 	pccard_safe_quote(cis0, sc->card.cis1_info[0], sizeof(cis0));
1021 	pccard_safe_quote(cis1, sc->card.cis1_info[1], sizeof(cis1));
1022 	ksnprintf(buf, buflen, "manufacturer=0x%04x product=0x%04x "
1023 	    "cisvendor=\"%s\" cisproduct=\"%s\" function_type=%d",
1024 	    sc->card.manufacturer, sc->card.product, cis0, cis1, pf->function);
1025 	return (0);
1026 }
1027 
1028 static int
pccard_read_ivar(device_t bus,device_t child,int which,u_char * result)1029 pccard_read_ivar(device_t bus, device_t child, int which, u_char *result)
1030 {
1031 	struct pccard_ivar *devi = PCCARD_IVAR(child);
1032 	struct pccard_function *pf = devi->pf;
1033 	struct pccard_softc *sc = PCCARD_SOFTC(bus);
1034 
1035 	if (!pf)
1036 		panic("No pccard function pointer");
1037 	switch (which) {
1038 	default:
1039 		return (EINVAL);
1040 	case PCCARD_IVAR_ETHADDR:
1041 		*(const uint8_t **)result = pf->pf_funce_lan_nid;
1042 		break;
1043 	case PCCARD_IVAR_VENDOR:
1044 		*(uint32_t *)result = sc->card.manufacturer;
1045 		break;
1046 	case PCCARD_IVAR_PRODUCT:
1047 		*(uint32_t *)result = sc->card.product;
1048 		break;
1049 	case PCCARD_IVAR_PRODEXT:
1050 		*(uint16_t *)result = sc->card.prodext;
1051 		break;
1052 	case PCCARD_IVAR_FUNCTION:
1053 		*(uint32_t *)result = pf->function;
1054 		break;
1055 	case PCCARD_IVAR_FUNCTION_NUMBER:
1056 		*(uint32_t *)result = pf->number;
1057 		break;
1058 	case PCCARD_IVAR_VENDOR_STR:
1059 		*(const char **)result = sc->card.cis1_info[0];
1060 		break;
1061 	case PCCARD_IVAR_PRODUCT_STR:
1062 		*(const char **)result = sc->card.cis1_info[1];
1063 		break;
1064 	case PCCARD_IVAR_CIS3_STR:
1065 		*(const char **)result = sc->card.cis1_info[2];
1066 		break;
1067 	case PCCARD_IVAR_CIS4_STR:
1068 		*(const char **)result = sc->card.cis1_info[3];
1069 		break;
1070 	}
1071 	return (0);
1072 }
1073 
1074 static void
pccard_driver_added(device_t dev,driver_t * driver)1075 pccard_driver_added(device_t dev, driver_t *driver)
1076 {
1077 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1078 	struct pccard_function *pf;
1079 	device_t child;
1080 
1081 	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
1082 		if (STAILQ_EMPTY(&pf->cfe_head))
1083 			continue;
1084 		child = pf->dev;
1085 		if (device_get_state(child) != DS_NOTPRESENT)
1086 			continue;
1087 		if (pccard_function_enable(pf) == 0 &&
1088 		    device_probe_and_attach(child) == 0) {
1089 			DEVPRINTF((sc->dev, "function %d CCR at %d "
1090 			    "offset %x: %x %x %x %x, %x %x %x %x, %x\n",
1091 			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
1092 			    pccard_ccr_read(pf, 0x00),
1093 			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
1094 			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
1095 			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
1096 			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
1097 		} else {
1098 			if (pf->cfe != NULL)
1099 				pccard_function_disable(pf);
1100 		}
1101 	}
1102 	return;
1103 }
1104 
1105 static struct resource *
pccard_alloc_resource(device_t dev,device_t child,int type,int * rid,u_long start,u_long end,u_long count,u_int flags,int cpuid)1106 pccard_alloc_resource(device_t dev, device_t child, int type, int *rid,
1107     u_long start, u_long end, u_long count, u_int flags, int cpuid)
1108 {
1109 	struct pccard_ivar *dinfo;
1110 	struct resource_list_entry *rle = NULL;
1111 	int passthrough = (device_get_parent(child) != dev);
1112 	int isdefault = (start == 0 && end == ~0UL && count == 1);
1113 	struct resource *r = NULL;
1114 
1115 	/* XXX I'm no longer sure this is right */
1116 	if (passthrough) {
1117 		return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child,
1118 		    type, rid, start, end, count, flags, cpuid));
1119 	}
1120 
1121 	dinfo = device_get_ivars(child);
1122 	rle = resource_list_find(&dinfo->resources, type, *rid);
1123 
1124 	if (rle == NULL && isdefault)
1125 		return (NULL);	/* no resource of that type/rid */
1126 	if (rle == NULL || rle->res == NULL) {
1127 		/* XXX Need to adjust flags */
1128 		r = bus_alloc_resource(dev, type, rid, start, end,
1129 		  count, flags);
1130 		if (r == NULL)
1131 		    goto bad;
1132 		resource_list_add(&dinfo->resources, type, *rid,
1133 		  rman_get_start(r), rman_get_end(r), count,
1134 		  rman_get_cpuid(r));
1135 		rle = resource_list_find(&dinfo->resources, type, *rid);
1136 		if (!rle)
1137 		    goto bad;
1138 		rle->res = r;
1139 	}
1140 	/*
1141 	 * If dev doesn't own the device, then we can't give this device
1142 	 * out.
1143 	 */
1144 	if (rman_get_device(rle->res) != dev)
1145 		return (NULL);
1146 	rman_set_device(rle->res, child);
1147 	if (flags & RF_ACTIVE)
1148 		BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res);
1149 	return (rle->res);
1150 bad:;
1151 	device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1152 	return (NULL);
1153 }
1154 
1155 static int
pccard_release_resource(device_t dev,device_t child,int type,int rid,struct resource * r)1156 pccard_release_resource(device_t dev, device_t child, int type, int rid,
1157     struct resource *r)
1158 {
1159 	struct pccard_ivar *dinfo;
1160 	int passthrough = (device_get_parent(child) != dev);
1161 	struct resource_list_entry *rle = NULL;
1162 
1163 	if (passthrough)
1164 		return BUS_RELEASE_RESOURCE(device_get_parent(dev), child,
1165 		    type, rid, r);
1166 
1167 	dinfo = device_get_ivars(child);
1168 
1169 	rle = resource_list_find(&dinfo->resources, type, rid);
1170 
1171 	if (!rle) {
1172 		device_printf(dev, "Allocated resource not found, "
1173 		    "%d %x %lx %lx\n",
1174 		    type, rid, rman_get_start(r), rman_get_size(r));
1175 		return ENOENT;
1176 	}
1177 	if (!rle->res) {
1178 		device_printf(dev, "Allocated resource not recorded\n");
1179 		return ENOENT;
1180 	}
1181 	/*
1182 	 * Deactivate the resource (since it is being released), and
1183 	 * assign it to the bus.
1184 	 */
1185 	BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res);
1186 	rman_set_device(rle->res, dev);
1187 	return (0);
1188 }
1189 
1190 static void
pccard_child_detached(device_t parent,device_t dev)1191 pccard_child_detached(device_t parent, device_t dev)
1192 {
1193 	struct pccard_ivar *ivar = PCCARD_IVAR(dev);
1194 	struct pccard_function *pf = ivar->pf;
1195 
1196 	pccard_function_disable(pf);
1197 }
1198 
1199 static void
pccard_intr(void * arg)1200 pccard_intr(void *arg)
1201 {
1202 	struct pccard_function *pf = (struct pccard_function*) arg;
1203 	int reg;
1204 	int doisr = 1;
1205 
1206 	/*
1207 	 * MFC cards know if they interrupted, so we have to ack the
1208 	 * interrupt and call the ISR.  Non-MFC cards don't have these
1209 	 * bits, so they always get called.  Many non-MFC cards have
1210 	 * this bit set always upon read, but some do not.
1211 	 *
1212 	 * We always ack the interrupt, even if there's no ISR
1213 	 * for the card.  This is done on the theory that acking
1214 	 * the interrupt will pacify the card enough to keep an
1215 	 * interrupt storm from happening.  Of course this won't
1216 	 * help in the non-MFC case.
1217 	 *
1218 	 * This has no impact for MPSAFEness of the client drivers.
1219 	 * We register this with whatever flags the intr_handler
1220 	 * was registered with.  All these functions are MPSAFE.
1221 	 */
1222 	if (pccard_mfc(pf->sc)) {
1223 		reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS);
1224 		if (reg & PCCARD_CCR_STATUS_INTR)
1225 			pccard_ccr_write(pf, PCCARD_CCR_STATUS,
1226 			    reg & ~PCCARD_CCR_STATUS_INTR);
1227 		else
1228 			doisr = 0;
1229 	}
1230 	if (pf->intr_handler != NULL && doisr)
1231 		pf->intr_handler(pf->intr_handler_arg);
1232 }
1233 
1234 static int
pccard_setup_intr(device_t dev,device_t child,struct resource * irq,int flags,driver_intr_t * intr,void * arg,void ** cookiep,lwkt_serialize_t serializer,const char * desc)1235 pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1236     int flags, driver_intr_t *intr, void *arg,
1237     void **cookiep, lwkt_serialize_t serializer, const char *desc)
1238 {
1239 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1240 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1241 	struct pccard_function *pf = ivar->pf;
1242 	int err;
1243 
1244 	if (pf->intr_handler != NULL)
1245 		panic("Only one interrupt handler per function allowed");
1246 	err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1247 				     pf, cookiep, serializer, desc);
1248 	if (err != 0)
1249 		return (err);
1250 	pf->intr_handler = intr;
1251 	pf->intr_handler_arg = arg;
1252 	pf->intr_handler_cookie = *cookiep;
1253 	if (pccard_mfc(sc)) {
1254 		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1255 		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1256 		    PCCARD_CCR_OPTION_IREQ_ENABLE);
1257 	}
1258 	return (0);
1259 }
1260 
1261 static int
pccard_teardown_intr(device_t dev,device_t child,struct resource * r,void * cookie)1262 pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1263     void *cookie)
1264 {
1265 	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1266 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1267 	struct pccard_function *pf = ivar->pf;
1268 	int ret;
1269 
1270 	if (pccard_mfc(sc)) {
1271 		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1272 		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1273 		    ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1274 	}
1275 	ret = bus_generic_teardown_intr(dev, child, r, cookie);
1276 	if (ret == 0) {
1277 		pf->intr_handler = NULL;
1278 		pf->intr_handler_arg = NULL;
1279 		pf->intr_handler_cookie = NULL;
1280 	}
1281 
1282 	return (ret);
1283 }
1284 
1285 static int
pccard_activate_resource(device_t brdev,device_t child,int type,int rid,struct resource * r)1286 pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1287     struct resource *r)
1288 {
1289 	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1290 	struct pccard_function *pf = ivar->pf;
1291 
1292 	switch(type) {
1293 	case SYS_RES_IOPORT:
1294 		/*
1295 		 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1296 		 * card.
1297 		 */
1298 		if (pccard_mfc(pf->sc))
1299 			pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1300 			    rman_get_size(r));
1301 		break;
1302 	default:
1303 		break;
1304 	}
1305 	return (bus_generic_activate_resource(brdev, child, type, rid, r));
1306 }
1307 
1308 static int
pccard_deactivate_resource(device_t brdev,device_t child,int type,int rid,struct resource * r)1309 pccard_deactivate_resource(device_t brdev, device_t child, int type,
1310     int rid, struct resource *r)
1311 {
1312 	/* XXX undo pccard_activate_resource? XXX */
1313 	return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1314 }
1315 
1316 static device_method_t pccard_methods[] = {
1317 	/* Device interface */
1318 	DEVMETHOD(device_probe,		pccard_probe),
1319 	DEVMETHOD(device_attach,	pccard_attach),
1320 	DEVMETHOD(device_detach,	pccard_detach),
1321 	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
1322 	DEVMETHOD(device_suspend,	pccard_suspend),
1323 	DEVMETHOD(device_resume,	pccard_resume),
1324 
1325 	/* Bus interface */
1326 	DEVMETHOD(bus_print_child,	pccard_print_child),
1327 	DEVMETHOD(bus_driver_added,	pccard_driver_added),
1328 	DEVMETHOD(bus_child_detached,	pccard_child_detached),
1329 	DEVMETHOD(bus_alloc_resource,	pccard_alloc_resource),
1330 	DEVMETHOD(bus_release_resource,	pccard_release_resource),
1331 	DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1332 	DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1333 	DEVMETHOD(bus_setup_intr,	pccard_setup_intr),
1334 	DEVMETHOD(bus_teardown_intr,	pccard_teardown_intr),
1335 	DEVMETHOD(bus_set_resource,	pccard_set_resource),
1336 	DEVMETHOD(bus_get_resource,	pccard_get_resource),
1337 	DEVMETHOD(bus_delete_resource,	pccard_delete_resource),
1338 	DEVMETHOD(bus_probe_nomatch,	pccard_probe_nomatch),
1339 	DEVMETHOD(bus_read_ivar,	pccard_read_ivar),
1340 	DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1341 	DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1342 
1343 	/* Card Interface */
1344 	DEVMETHOD(card_set_res_flags,	pccard_set_res_flags),
1345 	DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1346 	DEVMETHOD(card_attach_card,	pccard_attach_card),
1347 	DEVMETHOD(card_detach_card,	pccard_detach_card),
1348 	DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1349 	DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1350 	DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1351 	DEVMETHOD(card_cis_scan,	pccard_scan_cis),
1352 
1353 	DEVMETHOD_END
1354 };
1355 
1356 static driver_t pccard_driver = {
1357 	"pccard",
1358 	pccard_methods,
1359 	sizeof(struct pccard_softc)
1360 };
1361 
1362 devclass_t	pccard_devclass;
1363 
1364 /* Maybe we need to have a slot device? */
1365 DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, NULL, NULL);
1366 DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, NULL, NULL);
1367 MODULE_VERSION(pccard, 1);
1368