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34#include <linux/cpufreq.h>
35#include <linux/gpio.h>
36#include <linux/init.h>
37#include <linux/interrupt.h>
38#include <linux/io.h>
39#include <linux/irq.h>
40#include <linux/kernel.h>
41#include <linux/mm.h>
42#include <linux/module.h>
43#include <linux/moduleparam.h>
44#include <linux/mutex.h>
45#include <linux/spinlock.h>
46#include <linux/timer.h>
47
48#include <mach/hardware.h>
49
50#include "soc_common.h"
51
52static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev);
53
54#ifdef CONFIG_PCMCIA_DEBUG
55
56static int pc_debug;
57module_param(pc_debug, int, 0644);
58
59void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
60 int lvl, const char *fmt, ...)
61{
62 struct va_format vaf;
63 va_list args;
64 if (pc_debug > lvl) {
65 va_start(args, fmt);
66
67 vaf.fmt = fmt;
68 vaf.va = &args;
69
70 printk(KERN_DEBUG "skt%u: %s: %pV", skt->nr, func, &vaf);
71
72 va_end(args);
73 }
74}
75EXPORT_SYMBOL(soc_pcmcia_debug);
76
77#endif
78
79#define to_soc_pcmcia_socket(x) \
80 container_of(x, struct soc_pcmcia_socket, socket)
81
82static unsigned short
83calc_speed(unsigned short *spds, int num, unsigned short dflt)
84{
85 unsigned short speed = 0;
86 int i;
87
88 for (i = 0; i < num; i++)
89 if (speed < spds[i])
90 speed = spds[i];
91 if (speed == 0)
92 speed = dflt;
93
94 return speed;
95}
96
97void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *skt,
98 struct soc_pcmcia_timing *timing)
99{
100 timing->io =
101 calc_speed(skt->spd_io, MAX_IO_WIN, SOC_PCMCIA_IO_ACCESS);
102 timing->mem =
103 calc_speed(skt->spd_mem, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
104 timing->attr =
105 calc_speed(skt->spd_attr, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
106}
107EXPORT_SYMBOL(soc_common_pcmcia_get_timing);
108
109static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt,
110 unsigned int nr)
111{
112 unsigned int i;
113
114 for (i = 0; i < nr; i++) {
115 if (skt->stat[i].irq)
116 free_irq(skt->stat[i].irq, skt);
117 if (gpio_is_valid(skt->stat[i].gpio))
118 gpio_free(skt->stat[i].gpio);
119 }
120
121 if (skt->ops->hw_shutdown)
122 skt->ops->hw_shutdown(skt);
123}
124
125static void soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
126{
127 __soc_pcmcia_hw_shutdown(skt, ARRAY_SIZE(skt->stat));
128}
129
130static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
131{
132 int ret = 0, i;
133
134 if (skt->ops->hw_init) {
135 ret = skt->ops->hw_init(skt);
136 if (ret)
137 return ret;
138 }
139
140 for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
141 if (gpio_is_valid(skt->stat[i].gpio)) {
142 int irq;
143
144 ret = gpio_request_one(skt->stat[i].gpio, GPIOF_IN,
145 skt->stat[i].name);
146 if (ret) {
147 __soc_pcmcia_hw_shutdown(skt, i);
148 return ret;
149 }
150
151 irq = gpio_to_irq(skt->stat[i].gpio);
152
153 if (i == SOC_STAT_RDY)
154 skt->socket.pci_irq = irq;
155 else
156 skt->stat[i].irq = irq;
157 }
158
159 if (skt->stat[i].irq) {
160 ret = request_irq(skt->stat[i].irq,
161 soc_common_pcmcia_interrupt,
162 IRQF_TRIGGER_NONE,
163 skt->stat[i].name, skt);
164 if (ret) {
165 if (gpio_is_valid(skt->stat[i].gpio))
166 gpio_free(skt->stat[i].gpio);
167 __soc_pcmcia_hw_shutdown(skt, i);
168 return ret;
169 }
170 }
171 }
172
173 return ret;
174}
175
176static void soc_pcmcia_hw_enable(struct soc_pcmcia_socket *skt)
177{
178 int i;
179
180 for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
181 if (skt->stat[i].irq) {
182 irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_RISING);
183 irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_BOTH);
184 }
185}
186
187static void soc_pcmcia_hw_disable(struct soc_pcmcia_socket *skt)
188{
189 int i;
190
191 for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
192 if (skt->stat[i].irq)
193 irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_NONE);
194}
195
196static unsigned int soc_common_pcmcia_skt_state(struct soc_pcmcia_socket *skt)
197{
198 struct pcmcia_state state;
199 unsigned int stat;
200
201 memset(&state, 0, sizeof(struct pcmcia_state));
202
203
204 state.bvd1 = 1;
205 state.bvd2 = 1;
206
207
208 if (gpio_is_valid(skt->stat[SOC_STAT_CD].gpio))
209 state.detect = !gpio_get_value(skt->stat[SOC_STAT_CD].gpio);
210
211
212 if (gpio_is_valid(skt->stat[SOC_STAT_RDY].gpio))
213 state.ready = !!gpio_get_value(skt->stat[SOC_STAT_RDY].gpio);
214 if (gpio_is_valid(skt->stat[SOC_STAT_BVD1].gpio))
215 state.bvd1 = !!gpio_get_value(skt->stat[SOC_STAT_BVD1].gpio);
216 if (gpio_is_valid(skt->stat[SOC_STAT_BVD2].gpio))
217 state.bvd2 = !!gpio_get_value(skt->stat[SOC_STAT_BVD2].gpio);
218
219 skt->ops->socket_state(skt, &state);
220
221 stat = state.detect ? SS_DETECT : 0;
222 stat |= state.ready ? SS_READY : 0;
223 stat |= state.wrprot ? SS_WRPROT : 0;
224 stat |= state.vs_3v ? SS_3VCARD : 0;
225 stat |= state.vs_Xv ? SS_XVCARD : 0;
226
227
228
229
230
231 stat |= skt->cs_state.Vcc ? SS_POWERON : 0;
232
233 if (skt->cs_state.flags & SS_IOCARD)
234 stat |= state.bvd1 ? SS_STSCHG : 0;
235 else {
236 if (state.bvd1 == 0)
237 stat |= SS_BATDEAD;
238 else if (state.bvd2 == 0)
239 stat |= SS_BATWARN;
240 }
241 return stat;
242}
243
244
245
246
247
248
249
250static int soc_common_pcmcia_config_skt(
251 struct soc_pcmcia_socket *skt, socket_state_t *state)
252{
253 int ret;
254
255 ret = skt->ops->configure_socket(skt, state);
256 if (ret == 0) {
257
258
259
260
261 if (skt->irq_state != 1 && state->io_irq) {
262 skt->irq_state = 1;
263 irq_set_irq_type(skt->socket.pci_irq,
264 IRQ_TYPE_EDGE_FALLING);
265 } else if (skt->irq_state == 1 && state->io_irq == 0) {
266 skt->irq_state = 0;
267 irq_set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
268 }
269
270 skt->cs_state = *state;
271 }
272
273 if (ret < 0)
274 printk(KERN_ERR "soc_common_pcmcia: unable to configure "
275 "socket %d\n", skt->nr);
276
277 return ret;
278}
279
280
281
282
283
284
285
286
287
288
289static int soc_common_pcmcia_sock_init(struct pcmcia_socket *sock)
290{
291 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
292
293 debug(skt, 2, "initializing socket\n");
294 if (skt->ops->socket_init)
295 skt->ops->socket_init(skt);
296 soc_pcmcia_hw_enable(skt);
297 return 0;
298}
299
300
301
302
303
304
305
306
307
308
309
310static int soc_common_pcmcia_suspend(struct pcmcia_socket *sock)
311{
312 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
313
314 debug(skt, 2, "suspending socket\n");
315
316 soc_pcmcia_hw_disable(skt);
317 if (skt->ops->socket_suspend)
318 skt->ops->socket_suspend(skt);
319
320 return 0;
321}
322
323static DEFINE_SPINLOCK(status_lock);
324
325static void soc_common_check_status(struct soc_pcmcia_socket *skt)
326{
327 unsigned int events;
328
329 debug(skt, 4, "entering PCMCIA monitoring thread\n");
330
331 do {
332 unsigned int status;
333 unsigned long flags;
334
335 status = soc_common_pcmcia_skt_state(skt);
336
337 spin_lock_irqsave(&status_lock, flags);
338 events = (status ^ skt->status) & skt->cs_state.csc_mask;
339 skt->status = status;
340 spin_unlock_irqrestore(&status_lock, flags);
341
342 debug(skt, 4, "events: %s%s%s%s%s%s\n",
343 events == 0 ? "<NONE>" : "",
344 events & SS_DETECT ? "DETECT " : "",
345 events & SS_READY ? "READY " : "",
346 events & SS_BATDEAD ? "BATDEAD " : "",
347 events & SS_BATWARN ? "BATWARN " : "",
348 events & SS_STSCHG ? "STSCHG " : "");
349
350 if (events)
351 pcmcia_parse_events(&skt->socket, events);
352 } while (events);
353}
354
355
356static void soc_common_pcmcia_poll_event(unsigned long dummy)
357{
358 struct soc_pcmcia_socket *skt = (struct soc_pcmcia_socket *)dummy;
359 debug(skt, 4, "polling for events\n");
360
361 mod_timer(&skt->poll_timer, jiffies + SOC_PCMCIA_POLL_PERIOD);
362
363 soc_common_check_status(skt);
364}
365
366
367
368
369
370
371
372
373
374
375static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev)
376{
377 struct soc_pcmcia_socket *skt = dev;
378
379 debug(skt, 3, "servicing IRQ %d\n", irq);
380
381 soc_common_check_status(skt);
382
383 return IRQ_HANDLED;
384}
385
386
387
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390
391
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393
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395
396
397
398
399
400
401
402static int
403soc_common_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
404{
405 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
406
407 skt->status = soc_common_pcmcia_skt_state(skt);
408 *status = skt->status;
409
410 return 0;
411}
412
413
414
415
416
417
418
419
420
421static int soc_common_pcmcia_set_socket(
422 struct pcmcia_socket *sock, socket_state_t *state)
423{
424 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
425
426 debug(skt, 2, "mask: %s%s%s%s%s%s flags: %s%s%s%s%s%s Vcc %d Vpp %d irq %d\n",
427 (state->csc_mask == 0) ? "<NONE> " : "",
428 (state->csc_mask & SS_DETECT) ? "DETECT " : "",
429 (state->csc_mask & SS_READY) ? "READY " : "",
430 (state->csc_mask & SS_BATDEAD) ? "BATDEAD " : "",
431 (state->csc_mask & SS_BATWARN) ? "BATWARN " : "",
432 (state->csc_mask & SS_STSCHG) ? "STSCHG " : "",
433 (state->flags == 0) ? "<NONE> " : "",
434 (state->flags & SS_PWR_AUTO) ? "PWR_AUTO " : "",
435 (state->flags & SS_IOCARD) ? "IOCARD " : "",
436 (state->flags & SS_RESET) ? "RESET " : "",
437 (state->flags & SS_SPKR_ENA) ? "SPKR_ENA " : "",
438 (state->flags & SS_OUTPUT_ENA) ? "OUTPUT_ENA " : "",
439 state->Vcc, state->Vpp, state->io_irq);
440
441 return soc_common_pcmcia_config_skt(skt, state);
442}
443
444
445
446
447
448
449
450
451
452
453static int soc_common_pcmcia_set_io_map(
454 struct pcmcia_socket *sock, struct pccard_io_map *map)
455{
456 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
457 unsigned short speed = map->speed;
458
459 debug(skt, 2, "map %u speed %u start 0x%08llx stop 0x%08llx\n",
460 map->map, map->speed, (unsigned long long)map->start,
461 (unsigned long long)map->stop);
462 debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
463 (map->flags == 0) ? "<NONE>" : "",
464 (map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
465 (map->flags & MAP_16BIT) ? "16BIT " : "",
466 (map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
467 (map->flags & MAP_0WS) ? "0WS " : "",
468 (map->flags & MAP_WRPROT) ? "WRPROT " : "",
469 (map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "",
470 (map->flags & MAP_PREFETCH) ? "PREFETCH " : "");
471
472 if (map->map >= MAX_IO_WIN) {
473 printk(KERN_ERR "%s(): map (%d) out of range\n", __func__,
474 map->map);
475 return -1;
476 }
477
478 if (map->flags & MAP_ACTIVE) {
479 if (speed == 0)
480 speed = SOC_PCMCIA_IO_ACCESS;
481 } else {
482 speed = 0;
483 }
484
485 skt->spd_io[map->map] = speed;
486 skt->ops->set_timing(skt);
487
488 if (map->stop == 1)
489 map->stop = PAGE_SIZE-1;
490
491 map->stop -= map->start;
492 map->stop += skt->socket.io_offset;
493 map->start = skt->socket.io_offset;
494
495 return 0;
496}
497
498
499
500
501
502
503
504
505
506
507static int soc_common_pcmcia_set_mem_map(
508 struct pcmcia_socket *sock, struct pccard_mem_map *map)
509{
510 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
511 struct resource *res;
512 unsigned short speed = map->speed;
513
514 debug(skt, 2, "map %u speed %u card_start %08x\n",
515 map->map, map->speed, map->card_start);
516 debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
517 (map->flags == 0) ? "<NONE>" : "",
518 (map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
519 (map->flags & MAP_16BIT) ? "16BIT " : "",
520 (map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
521 (map->flags & MAP_0WS) ? "0WS " : "",
522 (map->flags & MAP_WRPROT) ? "WRPROT " : "",
523 (map->flags & MAP_ATTRIB) ? "ATTRIB " : "",
524 (map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "");
525
526 if (map->map >= MAX_WIN)
527 return -EINVAL;
528
529 if (map->flags & MAP_ACTIVE) {
530 if (speed == 0)
531 speed = 300;
532 } else {
533 speed = 0;
534 }
535
536 if (map->flags & MAP_ATTRIB) {
537 res = &skt->res_attr;
538 skt->spd_attr[map->map] = speed;
539 skt->spd_mem[map->map] = 0;
540 } else {
541 res = &skt->res_mem;
542 skt->spd_attr[map->map] = 0;
543 skt->spd_mem[map->map] = speed;
544 }
545
546 skt->ops->set_timing(skt);
547
548 map->static_start = res->start + map->card_start;
549
550 return 0;
551}
552
553struct bittbl {
554 unsigned int mask;
555 const char *name;
556};
557
558static struct bittbl status_bits[] = {
559 { SS_WRPROT, "SS_WRPROT" },
560 { SS_BATDEAD, "SS_BATDEAD" },
561 { SS_BATWARN, "SS_BATWARN" },
562 { SS_READY, "SS_READY" },
563 { SS_DETECT, "SS_DETECT" },
564 { SS_POWERON, "SS_POWERON" },
565 { SS_STSCHG, "SS_STSCHG" },
566 { SS_3VCARD, "SS_3VCARD" },
567 { SS_XVCARD, "SS_XVCARD" },
568};
569
570static struct bittbl conf_bits[] = {
571 { SS_PWR_AUTO, "SS_PWR_AUTO" },
572 { SS_IOCARD, "SS_IOCARD" },
573 { SS_RESET, "SS_RESET" },
574 { SS_DMA_MODE, "SS_DMA_MODE" },
575 { SS_SPKR_ENA, "SS_SPKR_ENA" },
576 { SS_OUTPUT_ENA, "SS_OUTPUT_ENA" },
577};
578
579static void dump_bits(char **p, const char *prefix,
580 unsigned int val, struct bittbl *bits, int sz)
581{
582 char *b = *p;
583 int i;
584
585 b += sprintf(b, "%-9s:", prefix);
586 for (i = 0; i < sz; i++)
587 if (val & bits[i].mask)
588 b += sprintf(b, " %s", bits[i].name);
589 *b++ = '\n';
590 *p = b;
591}
592
593
594
595
596
597
598static ssize_t show_status(
599 struct device *dev, struct device_attribute *attr, char *buf)
600{
601 struct soc_pcmcia_socket *skt =
602 container_of(dev, struct soc_pcmcia_socket, socket.dev);
603 char *p = buf;
604
605 p += sprintf(p, "slot : %d\n", skt->nr);
606
607 dump_bits(&p, "status", skt->status,
608 status_bits, ARRAY_SIZE(status_bits));
609 dump_bits(&p, "csc_mask", skt->cs_state.csc_mask,
610 status_bits, ARRAY_SIZE(status_bits));
611 dump_bits(&p, "cs_flags", skt->cs_state.flags,
612 conf_bits, ARRAY_SIZE(conf_bits));
613
614 p += sprintf(p, "Vcc : %d\n", skt->cs_state.Vcc);
615 p += sprintf(p, "Vpp : %d\n", skt->cs_state.Vpp);
616 p += sprintf(p, "IRQ : %d (%d)\n", skt->cs_state.io_irq,
617 skt->socket.pci_irq);
618 if (skt->ops->show_timing)
619 p += skt->ops->show_timing(skt, p);
620
621 return p-buf;
622}
623static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
624
625
626static struct pccard_operations soc_common_pcmcia_operations = {
627 .init = soc_common_pcmcia_sock_init,
628 .suspend = soc_common_pcmcia_suspend,
629 .get_status = soc_common_pcmcia_get_status,
630 .set_socket = soc_common_pcmcia_set_socket,
631 .set_io_map = soc_common_pcmcia_set_io_map,
632 .set_mem_map = soc_common_pcmcia_set_mem_map,
633};
634
635
636static LIST_HEAD(soc_pcmcia_sockets);
637static DEFINE_MUTEX(soc_pcmcia_sockets_lock);
638
639#ifdef CONFIG_CPU_FREQ
640static int
641soc_pcmcia_notifier(struct notifier_block *nb, unsigned long val, void *data)
642{
643 struct soc_pcmcia_socket *skt;
644 struct cpufreq_freqs *freqs = data;
645 int ret = 0;
646
647 mutex_lock(&soc_pcmcia_sockets_lock);
648 list_for_each_entry(skt, &soc_pcmcia_sockets, node)
649 if (skt->ops->frequency_change)
650 ret += skt->ops->frequency_change(skt, val, freqs);
651 mutex_unlock(&soc_pcmcia_sockets_lock);
652
653 return ret;
654}
655
656static struct notifier_block soc_pcmcia_notifier_block = {
657 .notifier_call = soc_pcmcia_notifier
658};
659
660static int soc_pcmcia_cpufreq_register(void)
661{
662 int ret;
663
664 ret = cpufreq_register_notifier(&soc_pcmcia_notifier_block,
665 CPUFREQ_TRANSITION_NOTIFIER);
666 if (ret < 0)
667 printk(KERN_ERR "Unable to register CPU frequency change "
668 "notifier for PCMCIA (%d)\n", ret);
669 return ret;
670}
671fs_initcall(soc_pcmcia_cpufreq_register);
672
673static void soc_pcmcia_cpufreq_unregister(void)
674{
675 cpufreq_unregister_notifier(&soc_pcmcia_notifier_block,
676 CPUFREQ_TRANSITION_NOTIFIER);
677}
678module_exit(soc_pcmcia_cpufreq_unregister);
679
680#endif
681
682void soc_pcmcia_init_one(struct soc_pcmcia_socket *skt,
683 struct pcmcia_low_level *ops, struct device *dev)
684{
685 int i;
686
687 skt->ops = ops;
688 skt->socket.owner = ops->owner;
689 skt->socket.dev.parent = dev;
690 skt->socket.pci_irq = NO_IRQ;
691
692 for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
693 skt->stat[i].gpio = -EINVAL;
694}
695EXPORT_SYMBOL(soc_pcmcia_init_one);
696
697void soc_pcmcia_remove_one(struct soc_pcmcia_socket *skt)
698{
699 mutex_lock(&soc_pcmcia_sockets_lock);
700 del_timer_sync(&skt->poll_timer);
701
702 pcmcia_unregister_socket(&skt->socket);
703
704 soc_pcmcia_hw_shutdown(skt);
705
706
707 soc_common_pcmcia_config_skt(skt, &dead_socket);
708
709 list_del(&skt->node);
710 mutex_unlock(&soc_pcmcia_sockets_lock);
711
712 iounmap(skt->virt_io);
713 skt->virt_io = NULL;
714 release_resource(&skt->res_attr);
715 release_resource(&skt->res_mem);
716 release_resource(&skt->res_io);
717 release_resource(&skt->res_skt);
718}
719EXPORT_SYMBOL(soc_pcmcia_remove_one);
720
721int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt)
722{
723 int ret;
724
725 init_timer(&skt->poll_timer);
726 skt->poll_timer.function = soc_common_pcmcia_poll_event;
727 skt->poll_timer.data = (unsigned long)skt;
728 skt->poll_timer.expires = jiffies + SOC_PCMCIA_POLL_PERIOD;
729
730 ret = request_resource(&iomem_resource, &skt->res_skt);
731 if (ret)
732 goto out_err_1;
733
734 ret = request_resource(&skt->res_skt, &skt->res_io);
735 if (ret)
736 goto out_err_2;
737
738 ret = request_resource(&skt->res_skt, &skt->res_mem);
739 if (ret)
740 goto out_err_3;
741
742 ret = request_resource(&skt->res_skt, &skt->res_attr);
743 if (ret)
744 goto out_err_4;
745
746 skt->virt_io = ioremap(skt->res_io.start, 0x10000);
747 if (skt->virt_io == NULL) {
748 ret = -ENOMEM;
749 goto out_err_5;
750 }
751
752 mutex_lock(&soc_pcmcia_sockets_lock);
753
754 list_add(&skt->node, &soc_pcmcia_sockets);
755
756
757
758
759
760
761 skt->ops->set_timing(skt);
762
763 ret = soc_pcmcia_hw_init(skt);
764 if (ret)
765 goto out_err_6;
766
767 skt->socket.ops = &soc_common_pcmcia_operations;
768 skt->socket.features = SS_CAP_STATIC_MAP|SS_CAP_PCCARD;
769 skt->socket.resource_ops = &pccard_static_ops;
770 skt->socket.irq_mask = 0;
771 skt->socket.map_size = PAGE_SIZE;
772 skt->socket.io_offset = (unsigned long)skt->virt_io;
773
774 skt->status = soc_common_pcmcia_skt_state(skt);
775
776 ret = pcmcia_register_socket(&skt->socket);
777 if (ret)
778 goto out_err_7;
779
780 add_timer(&skt->poll_timer);
781
782 mutex_unlock(&soc_pcmcia_sockets_lock);
783
784 ret = device_create_file(&skt->socket.dev, &dev_attr_status);
785 if (ret)
786 goto out_err_8;
787
788 return ret;
789
790 out_err_8:
791 mutex_lock(&soc_pcmcia_sockets_lock);
792 del_timer_sync(&skt->poll_timer);
793 pcmcia_unregister_socket(&skt->socket);
794
795 out_err_7:
796 soc_pcmcia_hw_shutdown(skt);
797 out_err_6:
798 list_del(&skt->node);
799 mutex_unlock(&soc_pcmcia_sockets_lock);
800 iounmap(skt->virt_io);
801 out_err_5:
802 release_resource(&skt->res_attr);
803 out_err_4:
804 release_resource(&skt->res_mem);
805 out_err_3:
806 release_resource(&skt->res_io);
807 out_err_2:
808 release_resource(&skt->res_skt);
809 out_err_1:
810
811 return ret;
812}
813EXPORT_SYMBOL(soc_pcmcia_add_one);
814
815MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
816MODULE_DESCRIPTION("Linux PCMCIA Card Services: Common SoC support");
817MODULE_LICENSE("Dual MPL/GPL");
818