pccard.c revision 150391
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
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/dev/pccard/pccard.c 150391 2005-09-20 19:34:10Z imp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/malloc.h>
38#include <sys/module.h>
39#include <sys/kernel.h>
40#include <sys/queue.h>
41#include <sys/sysctl.h>
42#include <sys/types.h>
43
44#include <sys/bus.h>
45#include <machine/bus.h>
46#include <sys/rman.h>
47#include <machine/resource.h>
48
49#include <net/ethernet.h>
50
51#include <dev/pccard/pccardreg.h>
52#include <dev/pccard/pccardvar.h>
53#include <dev/pccard/pccardvarp.h>
54#include <dev/pccard/pccard_cis.h>
55
56#include "power_if.h"
57#include "card_if.h"
58
59#define PCCARDDEBUG
60
61/* sysctl vars */
62SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD, 0, "PCCARD parameters");
63
64int	pccard_debug = 0;
65TUNABLE_INT("hw.pccard.debug", &pccard_debug);
66SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RW,
67    &pccard_debug, 0,
68  "pccard debug");
69
70int	pccard_cis_debug = 0;
71TUNABLE_INT("hw.pccard.cis_debug", &pccard_cis_debug);
72SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RW,
73    &pccard_cis_debug, 0, "pccard CIS debug");
74
75#ifdef PCCARDDEBUG
76#define	DPRINTF(arg) if (pccard_debug) printf arg
77#define	DEVPRINTF(arg) if (pccard_debug) device_printf arg
78#define PRVERBOSE(arg) printf arg
79#define DEVPRVERBOSE(arg) device_printf arg
80#else
81#define	DPRINTF(arg)
82#define	DEVPRINTF(arg)
83#define PRVERBOSE(arg) if (bootverbose) printf arg
84#define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg
85#endif
86
87static int	pccard_ccr_read(struct pccard_function *pf, int ccr);
88static void	pccard_ccr_write(struct pccard_function *pf, int ccr, int val);
89static int	pccard_attach_card(device_t dev);
90static int	pccard_detach_card(device_t dev);
91static void	pccard_function_init(struct pccard_function *pf);
92static void	pccard_function_free(struct pccard_function *pf);
93static int	pccard_function_enable(struct pccard_function *pf);
94static void	pccard_function_disable(struct pccard_function *pf);
95static int	pccard_compat_do_probe(device_t bus, device_t dev);
96static int	pccard_compat_do_attach(device_t bus, device_t dev);
97static int	pccard_probe(device_t dev);
98static int	pccard_attach(device_t dev);
99static int	pccard_detach(device_t dev);
100static void	pccard_print_resources(struct resource_list *rl,
101		    const char *name, int type, int count, const char *format);
102static int	pccard_print_child(device_t dev, device_t child);
103static int	pccard_set_resource(device_t dev, device_t child, int type,
104		    int rid, u_long start, u_long count);
105static int	pccard_get_resource(device_t dev, device_t child, int type,
106		    int rid, u_long *startp, u_long *countp);
107static void	pccard_delete_resource(device_t dev, device_t child, int type,
108		    int rid);
109static int	pccard_set_res_flags(device_t dev, device_t child, int type,
110		    int rid, uint32_t flags);
111static int	pccard_set_memory_offset(device_t dev, device_t child, int rid,
112		    uint32_t offset, uint32_t *deltap);
113static void	pccard_probe_nomatch(device_t cbdev, device_t child);
114static int	pccard_read_ivar(device_t bus, device_t child, int which,
115		    u_char *result);
116static void	pccard_driver_added(device_t dev, driver_t *driver);
117static struct resource *pccard_alloc_resource(device_t dev,
118		    device_t child, int type, int *rid, u_long start,
119		    u_long end, u_long count, u_int flags);
120static int	pccard_release_resource(device_t dev, device_t child, int type,
121		    int rid, struct resource *r);
122static void	pccard_child_detached(device_t parent, device_t dev);
123static void	pccard_intr(void *arg);
124static int	pccard_setup_intr(device_t dev, device_t child,
125		    struct resource *irq, int flags, driver_intr_t *intr,
126		    void *arg, void **cookiep);
127static int	pccard_teardown_intr(device_t dev, device_t child,
128		    struct resource *r, void *cookie);
129
130static const struct pccard_product *
131pccard_do_product_lookup(device_t bus, device_t dev,
132			 const struct pccard_product *tab, size_t ent_size,
133			 pccard_product_match_fn matchfn);
134
135
136static int
137pccard_ccr_read(struct pccard_function *pf, int ccr)
138{
139	return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
140	    pf->pf_ccr_offset + ccr));
141}
142
143static void
144pccard_ccr_write(struct pccard_function *pf, int ccr, int val)
145{
146	if ((pf->ccr_mask) & (1 << (ccr / 2))) {
147		bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
148		    pf->pf_ccr_offset + ccr, val);
149	}
150}
151
152static int
153pccard_set_default_descr(device_t dev)
154{
155	const char *vendorstr, *prodstr;
156	uint32_t vendor, prod;
157	char *str;
158
159	if (pccard_get_vendor_str(dev, &vendorstr))
160		return (0);
161	if (pccard_get_product_str(dev, &prodstr))
162		return (0);
163	if (vendorstr != NULL && prodstr != NULL) {
164		str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF,
165		    M_WAITOK);
166		sprintf(str, "%s %s", vendorstr, prodstr);
167		device_set_desc_copy(dev, str);
168		free(str, M_DEVBUF);
169	} else {
170		if (pccard_get_vendor(dev, &vendor))
171			return (0);
172		if (pccard_get_product(dev, &prod))
173			return (0);
174		str = malloc(100, M_DEVBUF, M_WAITOK);
175		snprintf(str, 100, "vendor=0x%x product=0x%x", vendor, prod);
176		device_set_desc_copy(dev, str);
177		free(str, M_DEVBUF);
178	}
179	return (0);
180}
181
182static int
183pccard_attach_card(device_t dev)
184{
185	struct pccard_softc *sc = PCCARD_SOFTC(dev);
186	struct pccard_function *pf;
187	struct pccard_ivar *ivar;
188	device_t child;
189	int i;
190
191	/*
192	 * this is here so that when socket_enable calls gettype, trt happens
193	 */
194	STAILQ_INIT(&sc->card.pf_head);
195
196	DEVPRINTF((dev, "chip_socket_enable\n"));
197	POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
198
199	DEVPRINTF((dev, "read_cis\n"));
200	pccard_read_cis(sc);
201
202	DEVPRINTF((dev, "check_cis_quirks\n"));
203	pccard_check_cis_quirks(dev);
204
205	/*
206	 * bail now if the card has no functions, or if there was an error in
207	 * the cis.
208	 */
209
210	if (sc->card.error) {
211		device_printf(dev, "CARD ERROR!\n");
212		return (1);
213	}
214	if (STAILQ_EMPTY(&sc->card.pf_head)) {
215		device_printf(dev, "Card has no functions!\n");
216		return (1);
217	}
218
219	if (bootverbose || pccard_debug)
220		pccard_print_cis(dev);
221
222	DEVPRINTF((dev, "functions scanning\n"));
223	i = -1;
224	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
225		i++;
226		if (STAILQ_EMPTY(&pf->cfe_head)) {
227			device_printf(dev,
228			    "Function %d has no config entries.!\n", i);
229			continue;
230		}
231		pf->sc = sc;
232		pf->cfe = NULL;
233		pf->dev = NULL;
234	}
235	DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1,
236	    pccard_mfc(sc)));
237
238	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
239		if (STAILQ_EMPTY(&pf->cfe_head))
240			continue;
241		/*
242		 * In NetBSD, the drivers are responsible for activating
243		 * each function of a card.  I think that in FreeBSD we
244		 * want to activate them enough for the usual bus_*_resource
245		 * routines will do the right thing.  This many mean a
246		 * departure from the current NetBSD model.
247		 *
248		 * This seems to work well in practice for most cards.
249		 * However, there are two cases that are problematic.
250		 * If a driver wishes to pick and chose which config
251		 * entry to use, then this method falls down.  These
252		 * are usually older cards.  In addition, there are
253		 * some cards that have multiple hardware units on the
254		 * cards, but presents only one CIS chain.  These cards
255		 * are combination cards, but only one of these units
256		 * can be on at a time.
257		 */
258		ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF,
259		    M_WAITOK | M_ZERO);
260		resource_list_init(&ivar->resources);
261		child = device_add_child(dev, NULL, -1);
262		device_set_ivars(child, ivar);
263		ivar->pf = pf;
264		pf->dev = child;
265		/*
266		 * XXX We might want to move the next three lines into
267		 * XXX the pccard interface layer.  For the moment, this
268		 * XXX is OK, but some drivers want to pick the config
269		 * XXX entry to use as well as some address tweaks (mostly
270		 * XXX due to bugs in decode logic that makes some
271		 * XXX addresses illegal or broken).
272		 */
273		pccard_function_init(pf);
274		if (sc->sc_enabled_count == 0)
275			POWER_ENABLE_SOCKET(device_get_parent(dev), dev);
276		if (pccard_function_enable(pf) == 0 &&
277		    pccard_set_default_descr(child) == 0 &&
278		    device_probe_and_attach(child) == 0) {
279			DEVPRINTF((sc->dev, "function %d CCR at %d "
280			    "offset %x mask %x: "
281			    "%x %x %x %x, %x %x %x %x, %x\n",
282			    pf->number, pf->pf_ccr_window, pf->pf_ccr_offset,
283			    pf->ccr_mask, pccard_ccr_read(pf, 0x00),
284			pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04),
285			pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A),
286			pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E),
287			pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12)));
288		} else {
289			if (pf->cfe != NULL)
290				pccard_function_disable(pf);
291		}
292	}
293	return (0);
294}
295
296static int
297pccard_detach_card(device_t dev)
298{
299	struct pccard_softc *sc = PCCARD_SOFTC(dev);
300	struct pccard_function *pf;
301	struct pccard_config_entry *cfe;
302	int state;
303
304	/*
305	 * We are running on either the PCCARD socket's event thread
306	 * or in user context detaching a device by user request.
307	 */
308	STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) {
309		if (pf->dev == NULL)
310			continue;
311		state = device_get_state(pf->dev);
312		if (state == DS_ATTACHED || state == DS_BUSY)
313			device_detach(pf->dev);
314		if (pf->cfe != NULL)
315			pccard_function_disable(pf);
316		pccard_function_free(pf);
317		device_delete_child(dev, pf->dev);
318	}
319	if (sc->sc_enabled_count == 0)
320		POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
321
322	while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) {
323		while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) {
324			STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list);
325			free(cfe, M_DEVBUF);
326		}
327		STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list);
328		free(pf, M_DEVBUF);
329	}
330	return (0);
331}
332
333static const struct pccard_product *
334pccard_do_product_lookup(device_t bus, device_t dev,
335    const struct pccard_product *tab, size_t ent_size,
336    pccard_product_match_fn matchfn)
337{
338	const struct pccard_product *ent;
339	int matches;
340	uint32_t vendor;
341	uint32_t prod;
342	const char *vendorstr;
343	const char *prodstr;
344	const char *cis3str;
345	const char *cis4str;
346
347#ifdef DIAGNOSTIC
348	if (sizeof *ent > ent_size)
349		panic("pccard_product_lookup: bogus ent_size %jd",
350		    (intmax_t) ent_size);
351#endif
352	if (pccard_get_vendor(dev, &vendor))
353		return (NULL);
354	if (pccard_get_product(dev, &prod))
355		return (NULL);
356	if (pccard_get_vendor_str(dev, &vendorstr))
357		return (NULL);
358	if (pccard_get_product_str(dev, &prodstr))
359		return (NULL);
360	if (pccard_get_cis3_str(dev, &cis3str))
361		return (NULL);
362	if (pccard_get_cis4_str(dev, &cis4str))
363		return (NULL);
364	for (ent = tab; ent->pp_vendor != 0; ent =
365	    (const struct pccard_product *) ((const char *) ent + ent_size)) {
366		matches = 1;
367		if (ent->pp_vendor == PCCARD_VENDOR_ANY &&
368		    ent->pp_product == PCCARD_PRODUCT_ANY &&
369		    ent->pp_cis[0] == NULL &&
370		    ent->pp_cis[1] == NULL) {
371			if (ent->pp_name)
372				device_printf(dev,
373				    "Total wildcard entry ignored for %s\n",
374				    ent->pp_name);
375			continue;
376		}
377		if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY &&
378		    vendor != ent->pp_vendor)
379			matches = 0;
380		if (matches && ent->pp_product != PCCARD_PRODUCT_ANY &&
381		    prod != ent->pp_product)
382			matches = 0;
383		if (matches && ent->pp_cis[0] &&
384		    (vendorstr == NULL ||
385		    strcmp(ent->pp_cis[0], vendorstr) != 0))
386			matches = 0;
387		if (matches && ent->pp_cis[1] &&
388		    (prodstr == NULL ||
389		    strcmp(ent->pp_cis[1], prodstr) != 0))
390			matches = 0;
391		if (matches && ent->pp_cis[2] &&
392		    (cis3str == NULL ||
393		    strcmp(ent->pp_cis[2], cis3str) != 0))
394			matches = 0;
395		if (matches && ent->pp_cis[3] &&
396		    (cis4str == NULL ||
397		    strcmp(ent->pp_cis[3], cis4str) != 0))
398			matches = 0;
399		if (matchfn != NULL)
400			matches = (*matchfn)(dev, ent, matches);
401		if (matches)
402			return (ent);
403	}
404	return (NULL);
405}
406
407/*
408 * Initialize a PCCARD function.  May be called as long as the function is
409 * disabled.
410 *
411 * Note: pccard_function_init should not keep resources allocated.  It should
412 * only set them up ala isa pnp, set the values in the rl lists, and return.
413 * Any resource held after pccard_function_init is called is a bug.  However,
414 * the bus routines to get the resources also assume that pccard_function_init
415 * does this, so they need to be fixed too.
416 */
417static void
418pccard_function_init(struct pccard_function *pf)
419{
420	struct pccard_config_entry *cfe;
421	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
422	struct resource_list *rl = &devi->resources;
423	struct resource_list_entry *rle;
424	struct resource *r = 0;
425	device_t bus;
426	u_long start, end, len;
427	int i, rid, spaces;
428
429	if (pf->pf_flags & PFF_ENABLED) {
430		printf("pccard_function_init: function is enabled");
431		return;
432	}
433	bus = device_get_parent(pf->dev);
434	/* Remember which configuration entry we are using. */
435	STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) {
436		if (cfe->iftype != PCCARD_IFTYPE_IO)
437			continue;
438		spaces = 0;
439		for (i = 0; i < cfe->num_iospace; i++) {
440			start = cfe->iospace[i].start;
441			if (start)
442				end = start + cfe->iospace[i].length - 1;
443			else
444				end = ~0UL;
445			DEVPRINTF((bus, "I/O rid %d start %lx end %lx\n",
446			    i, start, end));
447			rid = i;
448			len = cfe->iospace[i].length;
449			r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid,
450			    start, end, len, rman_make_alignment_flags(len));
451			if (r == NULL)
452				goto not_this_one;
453			rle = resource_list_add(rl, SYS_RES_IOPORT,
454			    rid, rman_get_start(r), rman_get_end(r),
455			    cfe->iospace[i].length);
456			if (rle == NULL)
457				panic("Cannot add resource rid %d IOPORT", rid);
458			rle->res = r;
459			spaces++;
460		}
461		for (i = 0; i < cfe->num_memspace; i++) {
462			start = cfe->memspace[i].hostaddr;
463			if (start)
464				end = start + cfe->memspace[i].length - 1;
465			else
466				end = ~0UL;
467			DEVPRINTF((bus, "Memory rid %d start %lx end %lx\n",
468			    i, start, end));
469			rid = i;
470			len = cfe->memspace[i].length;
471			r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid,
472			    start, end, len, rman_make_alignment_flags(len));
473			if (r == NULL)
474				goto not_this_one;
475			rle = resource_list_add(rl, SYS_RES_MEMORY,
476			    rid, rman_get_start(r), rman_get_end(r),
477			    cfe->memspace[i].length);
478			if (rle == NULL)
479				panic("Cannot add resource rid %d MEM", rid);
480			rle->res = r;
481			spaces++;
482		}
483		if (spaces == 0) {
484			DEVPRINTF((bus, "Neither memory nor I/O mapped\n"));
485			goto not_this_one;
486		}
487		if (cfe->irqmask) {
488			rid = 0;
489			r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid,
490			    RF_SHAREABLE);
491			if (r == NULL)
492				goto not_this_one;
493			rle = resource_list_add(rl, SYS_RES_IRQ, rid,
494			    rman_get_start(r), rman_get_end(r), 1);
495			if (rle == NULL)
496				panic("Cannot add resource rid %d IRQ", rid);
497			rle->res = r;
498		}
499		/* If we get to here, we've allocated all we need */
500		pf->cfe = cfe;
501		break;
502	    not_this_one:;
503		DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n",
504		    cfe->number));
505		resource_list_purge(rl);
506	}
507}
508
509/*
510 * Free resources allocated by pccard_function_init(), May be called as long
511 * as the function is disabled.
512 *
513 * NOTE: This function should be unnecessary.  pccard_function_init should
514 * never keep resources initialized.
515 */
516static void
517pccard_function_free(struct pccard_function *pf)
518{
519	struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
520	struct resource_list_entry *rle;
521
522	if (pf->pf_flags & PFF_ENABLED) {
523		printf("pccard_function_init: function is enabled");
524		return;
525	}
526
527	STAILQ_FOREACH(rle, &devi->resources, link) {
528		if (rle->res) {
529			if (rman_get_device(rle->res) != pf->sc->dev)
530				device_printf(pf->sc->dev,
531				    "function_free: Resource still owned by "
532				    "child, oops. "
533				    "(type=%d, rid=%d, addr=%lx)\n",
534				    rle->type, rle->rid,
535				    rman_get_start(rle->res));
536			BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev),
537			    pf->sc->dev, rle->type, rle->rid, rle->res);
538			rle->res = NULL;
539		}
540	}
541	resource_list_free(&devi->resources);
542}
543
544static void
545pccard_mfc_adjust_iobase(struct pccard_function *pf, bus_addr_t addr,
546    bus_addr_t offset, bus_size_t size)
547{
548	bus_size_t iosize, tmp;
549
550	if (addr != 0) {
551		if (pf->pf_mfc_iomax == 0) {
552			pf->pf_mfc_iobase = addr + offset;
553			pf->pf_mfc_iomax = pf->pf_mfc_iobase + size;
554		} else {
555			/* this makes the assumption that nothing overlaps */
556			if (pf->pf_mfc_iobase > addr + offset)
557				pf->pf_mfc_iobase = addr + offset;
558			if (pf->pf_mfc_iomax < addr + offset + size)
559				pf->pf_mfc_iomax = addr + offset + size;
560		}
561	}
562
563	tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase;
564	/* round up to nearest (2^n)-1 */
565	for (iosize = 1; iosize < tmp; iosize <<= 1)
566		;
567	iosize--;
568
569	DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n",
570	    (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1)));
571	pccard_ccr_write(pf, PCCARD_CCR_IOBASE0,
572	    pf->pf_mfc_iobase & 0xff);
573	pccard_ccr_write(pf, PCCARD_CCR_IOBASE1,
574	    (pf->pf_mfc_iobase >> 8) & 0xff);
575	pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0);
576	pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0);
577	pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize);
578}
579
580/* Enable a PCCARD function */
581static int
582pccard_function_enable(struct pccard_function *pf)
583{
584	struct pccard_function *tmp;
585	int reg;
586	device_t dev = pf->sc->dev;
587
588	if (pf->cfe == NULL) {
589		DEVPRVERBOSE((dev, "No config entry could be allocated.\n"));
590		return (ENOMEM);
591	}
592
593	/*
594	 * Increase the reference count on the socket, enabling power, if
595	 * necessary.
596	 */
597	pf->sc->sc_enabled_count++;
598
599	if (pf->pf_flags & PFF_ENABLED) {
600		/*
601		 * Don't do anything if we're already enabled.
602		 */
603		return (0);
604	}
605
606	/*
607	 * it's possible for different functions' CCRs to be in the same
608	 * underlying page.  Check for that.
609	 */
610	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
611		if ((tmp->pf_flags & PFF_ENABLED) &&
612		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
613		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
614		    (tmp->ccr_base - tmp->pf_ccr_offset +
615		    tmp->pf_ccr_realsize))) {
616			pf->pf_ccrt = tmp->pf_ccrt;
617			pf->pf_ccrh = tmp->pf_ccrh;
618			pf->pf_ccr_realsize = tmp->pf_ccr_realsize;
619
620			/*
621			 * pf->pf_ccr_offset = (tmp->pf_ccr_offset -
622			 * tmp->ccr_base) + pf->ccr_base;
623			 */
624			/* pf->pf_ccr_offset =
625			    (tmp->pf_ccr_offset + pf->ccr_base) -
626			    tmp->ccr_base; */
627			pf->pf_ccr_window = tmp->pf_ccr_window;
628			break;
629		}
630	}
631	if (tmp == NULL) {
632		pf->ccr_rid = 0;
633		pf->ccr_res = bus_alloc_resource(dev, SYS_RES_MEMORY,
634		    &pf->ccr_rid, 0, ~0, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE);
635		if (!pf->ccr_res)
636			goto bad;
637		DEVPRINTF((dev, "ccr_res == %lx-%lx, base=%x\n",
638		    rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res),
639		    pf->ccr_base));
640		CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY,
641		    pf->ccr_rid, PCCARD_A_MEM_ATTR);
642		CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev,
643		    pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset);
644		pf->pf_ccrt = rman_get_bustag(pf->ccr_res);
645		pf->pf_ccrh = rman_get_bushandle(pf->ccr_res);
646		pf->pf_ccr_realsize = 1;
647	}
648
649	reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX);
650	reg |= PCCARD_CCR_OPTION_LEVIREQ;
651	if (pccard_mfc(pf->sc)) {
652		reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE |
653			PCCARD_CCR_OPTION_ADDR_DECODE);
654		/* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */
655	}
656	pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg);
657
658	reg = 0;
659	if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0)
660		reg |= PCCARD_CCR_STATUS_IOIS8;
661	if (pf->cfe->flags & PCCARD_CFE_AUDIO)
662		reg |= PCCARD_CCR_STATUS_AUDIO;
663	pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg);
664
665	pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0);
666
667	if (pccard_mfc(pf->sc))
668		pccard_mfc_adjust_iobase(pf, 0, 0, 0);
669
670#ifdef PCCARDDEBUG
671	if (pccard_debug) {
672		STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
673			device_printf(tmp->sc->dev,
674			    "function %d CCR at %d offset %x: "
675			    "%x %x %x %x, %x %x %x %x, %x\n",
676			    tmp->number, tmp->pf_ccr_window,
677			    tmp->pf_ccr_offset,
678			    pccard_ccr_read(tmp, 0x00),
679			    pccard_ccr_read(tmp, 0x02),
680			    pccard_ccr_read(tmp, 0x04),
681			    pccard_ccr_read(tmp, 0x06),
682			    pccard_ccr_read(tmp, 0x0A),
683			    pccard_ccr_read(tmp, 0x0C),
684			    pccard_ccr_read(tmp, 0x0E),
685			    pccard_ccr_read(tmp, 0x10),
686			    pccard_ccr_read(tmp, 0x12));
687		}
688	}
689#endif
690	pf->pf_flags |= PFF_ENABLED;
691	return (0);
692
693 bad:
694	/*
695	 * Decrement the reference count, and power down the socket, if
696	 * necessary.
697	 */
698	pf->sc->sc_enabled_count--;
699	DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count));
700
701	return (1);
702}
703
704/* Disable PCCARD function. */
705static void
706pccard_function_disable(struct pccard_function *pf)
707{
708	struct pccard_function *tmp;
709	device_t dev = pf->sc->dev;
710
711	if (pf->cfe == NULL)
712		panic("pccard_function_disable: function not initialized");
713
714	if ((pf->pf_flags & PFF_ENABLED) == 0) {
715		/*
716		 * Don't do anything if we're already disabled.
717		 */
718		return;
719	}
720
721	if (pf->intr_handler != NULL) {
722		struct pccard_ivar *devi = PCCARD_IVAR(pf->dev);
723		struct resource_list_entry *rle =
724		    resource_list_find(&devi->resources, SYS_RES_IRQ, 0);
725		if (rle == NULL)
726			panic("Can't disable an interrupt with no IRQ res\n");
727		BUS_TEARDOWN_INTR(dev, pf->dev, rle->res,
728		    pf->intr_handler_cookie);
729	}
730
731	/*
732	 * it's possible for different functions' CCRs to be in the same
733	 * underlying page.  Check for that.  Note we mark us as disabled
734	 * first to avoid matching ourself.
735	 */
736
737	pf->pf_flags &= ~PFF_ENABLED;
738	STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) {
739		if ((tmp->pf_flags & PFF_ENABLED) &&
740		    (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) &&
741		    ((pf->ccr_base + PCCARD_CCR_SIZE) <=
742		    (tmp->ccr_base - tmp->pf_ccr_offset +
743		    tmp->pf_ccr_realsize)))
744			break;
745	}
746
747	/* Not used by anyone else; unmap the CCR. */
748	if (tmp == NULL) {
749		bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid,
750		    pf->ccr_res);
751		pf->ccr_res = NULL;
752	}
753
754	/*
755	 * Decrement the reference count, and power down the socket, if
756	 * necessary.
757	 */
758	pf->sc->sc_enabled_count--;
759}
760
761/*
762 * simulate the old "probe" routine.  In the new world order, the driver
763 * needs to grab devices while in the old they were assigned to the device by
764 * the pccardd process.  These symbols are exported to the upper layers.
765 */
766static int
767pccard_compat_do_probe(device_t bus, device_t dev)
768{
769	return (CARD_COMPAT_MATCH(dev));
770}
771
772static int
773pccard_compat_do_attach(device_t bus, device_t dev)
774{
775	int err;
776
777	err = CARD_COMPAT_PROBE(dev);
778	if (err <= 0)
779		err = CARD_COMPAT_ATTACH(dev);
780	return (err);
781}
782
783#define PCCARD_NPORT	2
784#define PCCARD_NMEM	5
785#define PCCARD_NIRQ	1
786#define PCCARD_NDRQ	0
787
788static int
789pccard_probe(device_t dev)
790{
791	device_set_desc(dev, "16-bit PCCard bus");
792	return (0);
793}
794
795static int
796pccard_attach(device_t dev)
797{
798	struct pccard_softc *sc = PCCARD_SOFTC(dev);
799	int err;
800
801	sc->dev = dev;
802	sc->sc_enabled_count = 0;
803	if ((err = pccard_device_create(sc)) != 0)
804		return  (err);
805	return (bus_generic_attach(dev));
806}
807
808static int
809pccard_detach(device_t dev)
810{
811	pccard_detach_card(dev);
812	pccard_device_destroy(device_get_softc(dev));
813	return (0);
814}
815
816static int
817pccard_suspend(device_t self)
818{
819	pccard_detach_card(self);
820	return (0);
821}
822
823static
824int
825pccard_resume(device_t self)
826{
827	return (0);
828}
829
830static void
831pccard_print_resources(struct resource_list *rl, const char *name, int type,
832    int count, const char *format)
833{
834	struct resource_list_entry *rle;
835	int printed;
836	int i;
837
838	printed = 0;
839	for (i = 0; i < count; i++) {
840		rle = resource_list_find(rl, type, i);
841		if (rle != NULL) {
842			if (printed == 0)
843				printf(" %s ", name);
844			else if (printed > 0)
845				printf(",");
846			printed++;
847			printf(format, rle->start);
848			if (rle->count > 1) {
849				printf("-");
850				printf(format, rle->start + rle->count - 1);
851			}
852		} else if (i > 3) {
853			/* check the first few regardless */
854			break;
855		}
856	}
857}
858
859static int
860pccard_print_child(device_t dev, device_t child)
861{
862	struct pccard_ivar *devi = PCCARD_IVAR(child);
863	struct resource_list *rl = &devi->resources;
864	int retval = 0;
865
866	retval += bus_print_child_header(dev, child);
867	retval += printf(" at");
868
869	if (devi != NULL) {
870		pccard_print_resources(rl, "port", SYS_RES_IOPORT,
871		    PCCARD_NPORT, "%#lx");
872		pccard_print_resources(rl, "iomem", SYS_RES_MEMORY,
873		    PCCARD_NMEM, "%#lx");
874		pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ,
875		    "%ld");
876		pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ,
877		    "%ld");
878		retval += printf(" function %d config %d", devi->pf->number,
879		    devi->pf->cfe->number);
880	}
881
882	retval += bus_print_child_footer(dev, child);
883
884	return (retval);
885}
886
887static int
888pccard_set_resource(device_t dev, device_t child, int type, int rid,
889    u_long start, u_long count)
890{
891	struct pccard_ivar *devi = PCCARD_IVAR(child);
892	struct resource_list *rl = &devi->resources;
893
894	if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY
895	    && type != SYS_RES_IRQ && type != SYS_RES_DRQ)
896		return (EINVAL);
897	if (rid < 0)
898		return (EINVAL);
899	if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT)
900		return (EINVAL);
901	if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM)
902		return (EINVAL);
903	if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ)
904		return (EINVAL);
905	if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ)
906		return (EINVAL);
907
908	resource_list_add(rl, type, rid, start, start + count - 1, count);
909	if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev,
910	    type, &rid, start, start + count - 1, count, 0))
911		return 0;
912	else
913		return ENOMEM;
914}
915
916static int
917pccard_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
936static void
937pccard_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
944static int
945pccard_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
952static int
953pccard_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
961static void
962pccard_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	printf(" (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; sc->card.cis1_info[i] != NULL && i < 4; i++)
975		printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]);
976	printf("\n");
977	return;
978}
979
980static int
981pccard_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	snprintf(buf, buflen, "function=%d", pf->number);
988	return (0);
989}
990
991/* XXX Maybe this should be in subr_bus? */
992static void
993pccard_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
1011static int
1012pccard_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	snprintf(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
1028static int
1029pccard_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		bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN);
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
1074static void
1075pccard_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
1105static struct resource *
1106pccard_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)
1108{
1109	struct pccard_ivar *dinfo;
1110	struct resource_list_entry *rle = 0;
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));
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		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);
1149bad:;
1150	device_printf(dev, "WARNING: Resource not reserved by pccard\n");
1151	return (NULL);
1152}
1153
1154static int
1155pccard_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 = 0;
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
1189static void
1190pccard_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
1198static void
1199pccard_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
1233static int
1234pccard_setup_intr(device_t dev, device_t child, struct resource *irq,
1235    int flags, driver_intr_t *intr, void *arg, void **cookiep)
1236{
1237	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1238	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1239	struct pccard_function *pf = ivar->pf;
1240	int err;
1241
1242	if (pf->intr_handler != NULL)
1243		panic("Only one interrupt handler per function allowed");
1244	err = bus_generic_setup_intr(dev, child, irq, flags, pccard_intr,
1245	    pf, cookiep);
1246	if (err != 0)
1247		return (err);
1248	pf->intr_handler = intr;
1249	pf->intr_handler_arg = arg;
1250	pf->intr_handler_cookie = *cookiep;
1251	if (pccard_mfc(sc)) {
1252		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1253		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) |
1254		    PCCARD_CCR_OPTION_IREQ_ENABLE);
1255	}
1256	return (0);
1257}
1258
1259static int
1260pccard_teardown_intr(device_t dev, device_t child, struct resource *r,
1261    void *cookie)
1262{
1263	struct pccard_softc *sc = PCCARD_SOFTC(dev);
1264	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1265	struct pccard_function *pf = ivar->pf;
1266	int ret;
1267
1268	if (pccard_mfc(sc)) {
1269		pccard_ccr_write(pf, PCCARD_CCR_OPTION,
1270		    pccard_ccr_read(pf, PCCARD_CCR_OPTION) &
1271		    ~PCCARD_CCR_OPTION_IREQ_ENABLE);
1272	}
1273	ret = bus_generic_teardown_intr(dev, child, r, cookie);
1274	if (ret == 0) {
1275		pf->intr_handler = NULL;
1276		pf->intr_handler_arg = NULL;
1277		pf->intr_handler_cookie = NULL;
1278	}
1279
1280	return (ret);
1281}
1282
1283static int
1284pccard_activate_resource(device_t brdev, device_t child, int type, int rid,
1285    struct resource *r)
1286{
1287	struct pccard_ivar *ivar = PCCARD_IVAR(child);
1288	struct pccard_function *pf = ivar->pf;
1289
1290	switch(type) {
1291	case SYS_RES_IOPORT:
1292		/*
1293		 * We need to adjust IOBASE[01] and IOSIZE if we're an MFC
1294		 * card.
1295		 */
1296		if (pccard_mfc(pf->sc))
1297			pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0,
1298			    rman_get_size(r));
1299		break;
1300	default:
1301		break;
1302	}
1303	return (bus_generic_activate_resource(brdev, child, type, rid, r));
1304}
1305
1306static int
1307pccard_deactivate_resource(device_t brdev, device_t child, int type,
1308    int rid, struct resource *r)
1309{
1310	/* XXX undo pccard_activate_resource? XXX */
1311	return (bus_generic_deactivate_resource(brdev, child, type, rid, r));
1312}
1313
1314static int
1315pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset,
1316    uint8_t *val)
1317{
1318	struct pccard_ivar *devi = PCCARD_IVAR(child);
1319	struct pccard_function *pf = devi->pf;
1320
1321	/*
1322	 * Optimization.  Most of the time, devices want to access
1323	 * the same page of the attribute memory that the CCR is in.
1324	 * We take advantage of this fact here.
1325	 */
1326	if (offset / PCCARD_MEM_PAGE_SIZE ==
1327	    pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1328		*val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh,
1329		    offset % PCCARD_MEM_PAGE_SIZE);
1330	else {
1331		CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1332		    &offset);
1333		*val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset);
1334		CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1335		    &offset);
1336	}
1337	return 0;
1338}
1339
1340static int
1341pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset,
1342    uint8_t val)
1343{
1344	struct pccard_ivar *devi = PCCARD_IVAR(child);
1345	struct pccard_function *pf = devi->pf;
1346
1347	/*
1348	 * Optimization.  Most of the time, devices want to access
1349	 * the same page of the attribute memory that the CCR is in.
1350	 * We take advantage of this fact here.
1351	 */
1352	if (offset / PCCARD_MEM_PAGE_SIZE ==
1353	    pf->ccr_base / PCCARD_MEM_PAGE_SIZE)
1354		bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh,
1355		    offset % PCCARD_MEM_PAGE_SIZE, val);
1356	else {
1357		CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset,
1358		    &offset);
1359		bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val);
1360		CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base,
1361		    &offset);
1362	}
1363
1364	return 0;
1365}
1366
1367static int
1368pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset,
1369    uint8_t *val)
1370{
1371	struct pccard_ivar *devi = PCCARD_IVAR(child);
1372
1373	*val = pccard_ccr_read(devi->pf, offset);
1374	device_printf(child, "ccr_read of %#x (%#x) is %#x\n", offset,
1375	  devi->pf->pf_ccr_offset, *val);
1376	return 0;
1377}
1378
1379static int
1380pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset,
1381    uint8_t val)
1382{
1383	struct pccard_ivar *devi = PCCARD_IVAR(child);
1384	struct pccard_function *pf = devi->pf;
1385
1386	/*
1387	 * Can't use pccard_ccr_write since client drivers may access
1388	 * registers not contained in the 'mask' if they are non-standard.
1389	 */
1390	device_printf(child, "ccr_write of %#x to %#x (%#x)\n", val, offset,
1391	  devi->pf->pf_ccr_offset);
1392	bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset,
1393	    val);
1394	return 0;
1395}
1396
1397
1398static device_method_t pccard_methods[] = {
1399	/* Device interface */
1400	DEVMETHOD(device_probe,		pccard_probe),
1401	DEVMETHOD(device_attach,	pccard_attach),
1402	DEVMETHOD(device_detach,	pccard_detach),
1403	DEVMETHOD(device_shutdown,	bus_generic_shutdown),
1404	DEVMETHOD(device_suspend,	pccard_suspend),
1405	DEVMETHOD(device_resume,	pccard_resume),
1406
1407	/* Bus interface */
1408	DEVMETHOD(bus_print_child,	pccard_print_child),
1409	DEVMETHOD(bus_driver_added,	pccard_driver_added),
1410	DEVMETHOD(bus_child_detached,	pccard_child_detached),
1411	DEVMETHOD(bus_alloc_resource,	pccard_alloc_resource),
1412	DEVMETHOD(bus_release_resource,	pccard_release_resource),
1413	DEVMETHOD(bus_activate_resource, pccard_activate_resource),
1414	DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource),
1415	DEVMETHOD(bus_setup_intr,	pccard_setup_intr),
1416	DEVMETHOD(bus_teardown_intr,	pccard_teardown_intr),
1417	DEVMETHOD(bus_set_resource,	pccard_set_resource),
1418	DEVMETHOD(bus_get_resource,	pccard_get_resource),
1419	DEVMETHOD(bus_delete_resource,	pccard_delete_resource),
1420	DEVMETHOD(bus_probe_nomatch,	pccard_probe_nomatch),
1421	DEVMETHOD(bus_read_ivar,	pccard_read_ivar),
1422	DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str),
1423	DEVMETHOD(bus_child_location_str, pccard_child_location_str),
1424
1425	/* Card Interface */
1426	DEVMETHOD(card_set_res_flags,	pccard_set_res_flags),
1427	DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset),
1428	DEVMETHOD(card_attach_card,	pccard_attach_card),
1429	DEVMETHOD(card_detach_card,	pccard_detach_card),
1430	DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup),
1431	DEVMETHOD(card_compat_do_probe, pccard_compat_do_probe),
1432	DEVMETHOD(card_compat_do_attach, pccard_compat_do_attach),
1433	DEVMETHOD(card_cis_scan,	pccard_scan_cis),
1434	DEVMETHOD(card_attr_read,	pccard_attr_read_impl),
1435	DEVMETHOD(card_attr_write,	pccard_attr_write_impl),
1436	DEVMETHOD(card_ccr_read,	pccard_ccr_read_impl),
1437	DEVMETHOD(card_ccr_write,	pccard_ccr_write_impl),
1438
1439	{ 0, 0 }
1440};
1441
1442static driver_t pccard_driver = {
1443	"pccard",
1444	pccard_methods,
1445	sizeof(struct pccard_softc)
1446};
1447
1448devclass_t	pccard_devclass;
1449
1450/* Maybe we need to have a slot device? */
1451DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0);
1452DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0);
1453MODULE_VERSION(pccard, 1);
1454