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34#include <linux/cpufreq.h>
35#include <linux/gpio.h>
36#include <linux/gpio/consumer.h>
37#include <linux/init.h>
38#include <linux/interrupt.h>
39#include <linux/io.h>
40#include <linux/irq.h>
41#include <linux/kernel.h>
42#include <linux/mm.h>
43#include <linux/module.h>
44#include <linux/moduleparam.h>
45#include <linux/mutex.h>
46#include <linux/regulator/consumer.h>
47#include <linux/spinlock.h>
48#include <linux/timer.h>
49
50#include <mach/hardware.h>
51
52#include "soc_common.h"
53
54static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev);
55
56#ifdef CONFIG_PCMCIA_DEBUG
57
58static int pc_debug;
59module_param(pc_debug, int, 0644);
60
61void soc_pcmcia_debug(struct soc_pcmcia_socket *skt, const char *func,
62 int lvl, const char *fmt, ...)
63{
64 struct va_format vaf;
65 va_list args;
66 if (pc_debug > lvl) {
67 va_start(args, fmt);
68
69 vaf.fmt = fmt;
70 vaf.va = &args;
71
72 printk(KERN_DEBUG "skt%u: %s: %pV", skt->nr, func, &vaf);
73
74 va_end(args);
75 }
76}
77EXPORT_SYMBOL(soc_pcmcia_debug);
78
79#endif
80
81#define to_soc_pcmcia_socket(x) \
82 container_of(x, struct soc_pcmcia_socket, socket)
83
84int soc_pcmcia_regulator_set(struct soc_pcmcia_socket *skt,
85 struct soc_pcmcia_regulator *r, int v)
86{
87 bool on;
88 int ret;
89
90 if (!r->reg)
91 return 0;
92
93 on = v != 0;
94 if (r->on == on)
95 return 0;
96
97 if (on) {
98 ret = regulator_set_voltage(r->reg, v * 100000, v * 100000);
99 if (ret) {
100 int vout = regulator_get_voltage(r->reg) / 100000;
101
102 dev_warn(&skt->socket.dev,
103 "CS requested %s=%u.%uV, applying %u.%uV\n",
104 r == &skt->vcc ? "Vcc" : "Vpp",
105 v / 10, v % 10, vout / 10, vout % 10);
106 }
107
108 ret = regulator_enable(r->reg);
109 } else {
110 ret = regulator_disable(r->reg);
111 }
112 if (ret == 0)
113 r->on = on;
114
115 return ret;
116}
117EXPORT_SYMBOL_GPL(soc_pcmcia_regulator_set);
118
119static unsigned short
120calc_speed(unsigned short *spds, int num, unsigned short dflt)
121{
122 unsigned short speed = 0;
123 int i;
124
125 for (i = 0; i < num; i++)
126 if (speed < spds[i])
127 speed = spds[i];
128 if (speed == 0)
129 speed = dflt;
130
131 return speed;
132}
133
134void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *skt,
135 struct soc_pcmcia_timing *timing)
136{
137 timing->io =
138 calc_speed(skt->spd_io, MAX_IO_WIN, SOC_PCMCIA_IO_ACCESS);
139 timing->mem =
140 calc_speed(skt->spd_mem, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
141 timing->attr =
142 calc_speed(skt->spd_attr, MAX_WIN, SOC_PCMCIA_3V_MEM_ACCESS);
143}
144EXPORT_SYMBOL(soc_common_pcmcia_get_timing);
145
146static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt,
147 unsigned int nr)
148{
149 unsigned int i;
150
151 for (i = 0; i < nr; i++)
152 if (skt->stat[i].irq)
153 free_irq(skt->stat[i].irq, skt);
154
155 if (skt->ops->hw_shutdown)
156 skt->ops->hw_shutdown(skt);
157
158 clk_disable_unprepare(skt->clk);
159}
160
161static void soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
162{
163 __soc_pcmcia_hw_shutdown(skt, ARRAY_SIZE(skt->stat));
164}
165
166int soc_pcmcia_request_gpiods(struct soc_pcmcia_socket *skt)
167{
168 struct device *dev = skt->socket.dev.parent;
169 struct gpio_desc *desc;
170 int i;
171
172 for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
173 if (!skt->stat[i].name)
174 continue;
175
176 desc = devm_gpiod_get(dev, skt->stat[i].name, GPIOD_IN);
177 if (IS_ERR(desc)) {
178 dev_err(dev, "Failed to get GPIO for %s: %ld\n",
179 skt->stat[i].name, PTR_ERR(desc));
180 return PTR_ERR(desc);
181 }
182
183 skt->stat[i].desc = desc;
184 }
185
186 return 0;
187}
188EXPORT_SYMBOL_GPL(soc_pcmcia_request_gpiods);
189
190static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
191{
192 int ret = 0, i;
193
194 clk_prepare_enable(skt->clk);
195
196 if (skt->ops->hw_init) {
197 ret = skt->ops->hw_init(skt);
198 if (ret)
199 return ret;
200 }
201
202 for (i = 0; i < ARRAY_SIZE(skt->stat); i++) {
203 if (gpio_is_valid(skt->stat[i].gpio)) {
204 unsigned long flags = GPIOF_IN;
205
206
207 if (i == SOC_STAT_CD)
208 flags |= GPIOF_ACTIVE_LOW;
209
210 ret = devm_gpio_request_one(skt->socket.dev.parent,
211 skt->stat[i].gpio, flags,
212 skt->stat[i].name);
213 if (ret) {
214 __soc_pcmcia_hw_shutdown(skt, i);
215 return ret;
216 }
217
218 skt->stat[i].desc = gpio_to_desc(skt->stat[i].gpio);
219 }
220
221 if (i < SOC_STAT_VS1 && skt->stat[i].desc) {
222 int irq = gpiod_to_irq(skt->stat[i].desc);
223
224 if (irq > 0) {
225 if (i == SOC_STAT_RDY)
226 skt->socket.pci_irq = irq;
227 else
228 skt->stat[i].irq = irq;
229 }
230 }
231
232 if (skt->stat[i].irq) {
233 ret = request_irq(skt->stat[i].irq,
234 soc_common_pcmcia_interrupt,
235 IRQF_TRIGGER_NONE,
236 skt->stat[i].name, skt);
237 if (ret) {
238 __soc_pcmcia_hw_shutdown(skt, i);
239 return ret;
240 }
241 }
242 }
243
244 return ret;
245}
246
247static void soc_pcmcia_hw_enable(struct soc_pcmcia_socket *skt)
248{
249 int i;
250
251 for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
252 if (skt->stat[i].irq) {
253 irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_RISING);
254 irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_EDGE_BOTH);
255 }
256}
257
258static void soc_pcmcia_hw_disable(struct soc_pcmcia_socket *skt)
259{
260 int i;
261
262 for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
263 if (skt->stat[i].irq)
264 irq_set_irq_type(skt->stat[i].irq, IRQ_TYPE_NONE);
265}
266
267
268
269
270
271
272void soc_common_cf_socket_state(struct soc_pcmcia_socket *skt,
273 struct pcmcia_state *state)
274{
275 state->vs_3v = 1;
276}
277EXPORT_SYMBOL_GPL(soc_common_cf_socket_state);
278
279static unsigned int soc_common_pcmcia_skt_state(struct soc_pcmcia_socket *skt)
280{
281 struct pcmcia_state state;
282 unsigned int stat;
283
284 memset(&state, 0, sizeof(struct pcmcia_state));
285
286
287 state.bvd1 = 1;
288 state.bvd2 = 1;
289
290 if (skt->stat[SOC_STAT_CD].desc)
291 state.detect = !!gpiod_get_value(skt->stat[SOC_STAT_CD].desc);
292 if (skt->stat[SOC_STAT_RDY].desc)
293 state.ready = !!gpiod_get_value(skt->stat[SOC_STAT_RDY].desc);
294 if (skt->stat[SOC_STAT_BVD1].desc)
295 state.bvd1 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD1].desc);
296 if (skt->stat[SOC_STAT_BVD2].desc)
297 state.bvd2 = !!gpiod_get_value(skt->stat[SOC_STAT_BVD2].desc);
298 if (skt->stat[SOC_STAT_VS1].desc)
299 state.vs_3v = !!gpiod_get_value(skt->stat[SOC_STAT_VS1].desc);
300 if (skt->stat[SOC_STAT_VS2].desc)
301 state.vs_Xv = !!gpiod_get_value(skt->stat[SOC_STAT_VS2].desc);
302
303 skt->ops->socket_state(skt, &state);
304
305 stat = state.detect ? SS_DETECT : 0;
306 stat |= state.ready ? SS_READY : 0;
307 stat |= state.wrprot ? SS_WRPROT : 0;
308 stat |= state.vs_3v ? SS_3VCARD : 0;
309 stat |= state.vs_Xv ? SS_XVCARD : 0;
310
311
312
313
314
315 stat |= skt->cs_state.Vcc ? SS_POWERON : 0;
316
317 if (skt->cs_state.flags & SS_IOCARD)
318 stat |= state.bvd1 ? 0 : SS_STSCHG;
319 else {
320 if (state.bvd1 == 0)
321 stat |= SS_BATDEAD;
322 else if (state.bvd2 == 0)
323 stat |= SS_BATWARN;
324 }
325 return stat;
326}
327
328
329
330
331
332
333
334static int soc_common_pcmcia_config_skt(
335 struct soc_pcmcia_socket *skt, socket_state_t *state)
336{
337 int ret;
338
339 ret = skt->ops->configure_socket(skt, state);
340 if (ret < 0) {
341 pr_err("soc_common_pcmcia: unable to configure socket %d\n",
342 skt->nr);
343
344 WARN_ON(skt->ops->configure_socket(skt, &skt->cs_state));
345 return ret;
346 }
347
348 if (ret == 0) {
349 struct gpio_desc *descs[2];
350 int values[2], n = 0;
351
352 if (skt->gpio_reset) {
353 descs[n] = skt->gpio_reset;
354 values[n++] = !!(state->flags & SS_RESET);
355 }
356 if (skt->gpio_bus_enable) {
357 descs[n] = skt->gpio_bus_enable;
358 values[n++] = !!(state->flags & SS_OUTPUT_ENA);
359 }
360
361 if (n)
362 gpiod_set_array_value_cansleep(n, descs, values);
363
364
365
366
367
368 if (skt->irq_state != 1 && state->io_irq) {
369 skt->irq_state = 1;
370 irq_set_irq_type(skt->socket.pci_irq,
371 IRQ_TYPE_EDGE_FALLING);
372 } else if (skt->irq_state == 1 && state->io_irq == 0) {
373 skt->irq_state = 0;
374 irq_set_irq_type(skt->socket.pci_irq, IRQ_TYPE_NONE);
375 }
376
377 skt->cs_state = *state;
378 }
379
380 return ret;
381}
382
383
384
385
386
387
388
389
390
391
392static int soc_common_pcmcia_sock_init(struct pcmcia_socket *sock)
393{
394 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
395
396 debug(skt, 2, "initializing socket\n");
397 if (skt->ops->socket_init)
398 skt->ops->socket_init(skt);
399 soc_pcmcia_hw_enable(skt);
400 return 0;
401}
402
403
404
405
406
407
408
409
410
411
412
413static int soc_common_pcmcia_suspend(struct pcmcia_socket *sock)
414{
415 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
416
417 debug(skt, 2, "suspending socket\n");
418
419 soc_pcmcia_hw_disable(skt);
420 if (skt->ops->socket_suspend)
421 skt->ops->socket_suspend(skt);
422
423 return 0;
424}
425
426static DEFINE_SPINLOCK(status_lock);
427
428static void soc_common_check_status(struct soc_pcmcia_socket *skt)
429{
430 unsigned int events;
431
432 debug(skt, 4, "entering PCMCIA monitoring thread\n");
433
434 do {
435 unsigned int status;
436 unsigned long flags;
437
438 status = soc_common_pcmcia_skt_state(skt);
439
440 spin_lock_irqsave(&status_lock, flags);
441 events = (status ^ skt->status) & skt->cs_state.csc_mask;
442 skt->status = status;
443 spin_unlock_irqrestore(&status_lock, flags);
444
445 debug(skt, 4, "events: %s%s%s%s%s%s\n",
446 events == 0 ? "<NONE>" : "",
447 events & SS_DETECT ? "DETECT " : "",
448 events & SS_READY ? "READY " : "",
449 events & SS_BATDEAD ? "BATDEAD " : "",
450 events & SS_BATWARN ? "BATWARN " : "",
451 events & SS_STSCHG ? "STSCHG " : "");
452
453 if (events)
454 pcmcia_parse_events(&skt->socket, events);
455 } while (events);
456}
457
458
459static void soc_common_pcmcia_poll_event(unsigned long dummy)
460{
461 struct soc_pcmcia_socket *skt = (struct soc_pcmcia_socket *)dummy;
462 debug(skt, 4, "polling for events\n");
463
464 mod_timer(&skt->poll_timer, jiffies + SOC_PCMCIA_POLL_PERIOD);
465
466 soc_common_check_status(skt);
467}
468
469
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473
474
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476
477
478static irqreturn_t soc_common_pcmcia_interrupt(int irq, void *dev)
479{
480 struct soc_pcmcia_socket *skt = dev;
481
482 debug(skt, 3, "servicing IRQ %d\n", irq);
483
484 soc_common_check_status(skt);
485
486 return IRQ_HANDLED;
487}
488
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503
504
505static int
506soc_common_pcmcia_get_status(struct pcmcia_socket *sock, unsigned int *status)
507{
508 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
509
510 skt->status = soc_common_pcmcia_skt_state(skt);
511 *status = skt->status;
512
513 return 0;
514}
515
516
517
518
519
520
521
522
523
524static int soc_common_pcmcia_set_socket(
525 struct pcmcia_socket *sock, socket_state_t *state)
526{
527 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
528
529 debug(skt, 2, "mask: %s%s%s%s%s%s flags: %s%s%s%s%s%s Vcc %d Vpp %d irq %d\n",
530 (state->csc_mask == 0) ? "<NONE> " : "",
531 (state->csc_mask & SS_DETECT) ? "DETECT " : "",
532 (state->csc_mask & SS_READY) ? "READY " : "",
533 (state->csc_mask & SS_BATDEAD) ? "BATDEAD " : "",
534 (state->csc_mask & SS_BATWARN) ? "BATWARN " : "",
535 (state->csc_mask & SS_STSCHG) ? "STSCHG " : "",
536 (state->flags == 0) ? "<NONE> " : "",
537 (state->flags & SS_PWR_AUTO) ? "PWR_AUTO " : "",
538 (state->flags & SS_IOCARD) ? "IOCARD " : "",
539 (state->flags & SS_RESET) ? "RESET " : "",
540 (state->flags & SS_SPKR_ENA) ? "SPKR_ENA " : "",
541 (state->flags & SS_OUTPUT_ENA) ? "OUTPUT_ENA " : "",
542 state->Vcc, state->Vpp, state->io_irq);
543
544 return soc_common_pcmcia_config_skt(skt, state);
545}
546
547
548
549
550
551
552
553
554
555
556static int soc_common_pcmcia_set_io_map(
557 struct pcmcia_socket *sock, struct pccard_io_map *map)
558{
559 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
560 unsigned short speed = map->speed;
561
562 debug(skt, 2, "map %u speed %u start 0x%08llx stop 0x%08llx\n",
563 map->map, map->speed, (unsigned long long)map->start,
564 (unsigned long long)map->stop);
565 debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
566 (map->flags == 0) ? "<NONE>" : "",
567 (map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
568 (map->flags & MAP_16BIT) ? "16BIT " : "",
569 (map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
570 (map->flags & MAP_0WS) ? "0WS " : "",
571 (map->flags & MAP_WRPROT) ? "WRPROT " : "",
572 (map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "",
573 (map->flags & MAP_PREFETCH) ? "PREFETCH " : "");
574
575 if (map->map >= MAX_IO_WIN) {
576 printk(KERN_ERR "%s(): map (%d) out of range\n", __func__,
577 map->map);
578 return -1;
579 }
580
581 if (map->flags & MAP_ACTIVE) {
582 if (speed == 0)
583 speed = SOC_PCMCIA_IO_ACCESS;
584 } else {
585 speed = 0;
586 }
587
588 skt->spd_io[map->map] = speed;
589 skt->ops->set_timing(skt);
590
591 if (map->stop == 1)
592 map->stop = PAGE_SIZE-1;
593
594 map->stop -= map->start;
595 map->stop += skt->socket.io_offset;
596 map->start = skt->socket.io_offset;
597
598 return 0;
599}
600
601
602
603
604
605
606
607
608
609
610static int soc_common_pcmcia_set_mem_map(
611 struct pcmcia_socket *sock, struct pccard_mem_map *map)
612{
613 struct soc_pcmcia_socket *skt = to_soc_pcmcia_socket(sock);
614 struct resource *res;
615 unsigned short speed = map->speed;
616
617 debug(skt, 2, "map %u speed %u card_start %08x\n",
618 map->map, map->speed, map->card_start);
619 debug(skt, 2, "flags: %s%s%s%s%s%s%s%s\n",
620 (map->flags == 0) ? "<NONE>" : "",
621 (map->flags & MAP_ACTIVE) ? "ACTIVE " : "",
622 (map->flags & MAP_16BIT) ? "16BIT " : "",
623 (map->flags & MAP_AUTOSZ) ? "AUTOSZ " : "",
624 (map->flags & MAP_0WS) ? "0WS " : "",
625 (map->flags & MAP_WRPROT) ? "WRPROT " : "",
626 (map->flags & MAP_ATTRIB) ? "ATTRIB " : "",
627 (map->flags & MAP_USE_WAIT) ? "USE_WAIT " : "");
628
629 if (map->map >= MAX_WIN)
630 return -EINVAL;
631
632 if (map->flags & MAP_ACTIVE) {
633 if (speed == 0)
634 speed = 300;
635 } else {
636 speed = 0;
637 }
638
639 if (map->flags & MAP_ATTRIB) {
640 res = &skt->res_attr;
641 skt->spd_attr[map->map] = speed;
642 skt->spd_mem[map->map] = 0;
643 } else {
644 res = &skt->res_mem;
645 skt->spd_attr[map->map] = 0;
646 skt->spd_mem[map->map] = speed;
647 }
648
649 skt->ops->set_timing(skt);
650
651 map->static_start = res->start + map->card_start;
652
653 return 0;
654}
655
656struct bittbl {
657 unsigned int mask;
658 const char *name;
659};
660
661static struct bittbl status_bits[] = {
662 { SS_WRPROT, "SS_WRPROT" },
663 { SS_BATDEAD, "SS_BATDEAD" },
664 { SS_BATWARN, "SS_BATWARN" },
665 { SS_READY, "SS_READY" },
666 { SS_DETECT, "SS_DETECT" },
667 { SS_POWERON, "SS_POWERON" },
668 { SS_STSCHG, "SS_STSCHG" },
669 { SS_3VCARD, "SS_3VCARD" },
670 { SS_XVCARD, "SS_XVCARD" },
671};
672
673static struct bittbl conf_bits[] = {
674 { SS_PWR_AUTO, "SS_PWR_AUTO" },
675 { SS_IOCARD, "SS_IOCARD" },
676 { SS_RESET, "SS_RESET" },
677 { SS_DMA_MODE, "SS_DMA_MODE" },
678 { SS_SPKR_ENA, "SS_SPKR_ENA" },
679 { SS_OUTPUT_ENA, "SS_OUTPUT_ENA" },
680};
681
682static void dump_bits(char **p, const char *prefix,
683 unsigned int val, struct bittbl *bits, int sz)
684{
685 char *b = *p;
686 int i;
687
688 b += sprintf(b, "%-9s:", prefix);
689 for (i = 0; i < sz; i++)
690 if (val & bits[i].mask)
691 b += sprintf(b, " %s", bits[i].name);
692 *b++ = '\n';
693 *p = b;
694}
695
696
697
698
699
700
701static ssize_t show_status(
702 struct device *dev, struct device_attribute *attr, char *buf)
703{
704 struct soc_pcmcia_socket *skt =
705 container_of(dev, struct soc_pcmcia_socket, socket.dev);
706 char *p = buf;
707
708 p += sprintf(p, "slot : %d\n", skt->nr);
709
710 dump_bits(&p, "status", skt->status,
711 status_bits, ARRAY_SIZE(status_bits));
712 dump_bits(&p, "csc_mask", skt->cs_state.csc_mask,
713 status_bits, ARRAY_SIZE(status_bits));
714 dump_bits(&p, "cs_flags", skt->cs_state.flags,
715 conf_bits, ARRAY_SIZE(conf_bits));
716
717 p += sprintf(p, "Vcc : %d\n", skt->cs_state.Vcc);
718 p += sprintf(p, "Vpp : %d\n", skt->cs_state.Vpp);
719 p += sprintf(p, "IRQ : %d (%d)\n", skt->cs_state.io_irq,
720 skt->socket.pci_irq);
721 if (skt->ops->show_timing)
722 p += skt->ops->show_timing(skt, p);
723
724 return p-buf;
725}
726static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
727
728
729static struct pccard_operations soc_common_pcmcia_operations = {
730 .init = soc_common_pcmcia_sock_init,
731 .suspend = soc_common_pcmcia_suspend,
732 .get_status = soc_common_pcmcia_get_status,
733 .set_socket = soc_common_pcmcia_set_socket,
734 .set_io_map = soc_common_pcmcia_set_io_map,
735 .set_mem_map = soc_common_pcmcia_set_mem_map,
736};
737
738
739#ifdef CONFIG_CPU_FREQ
740static int soc_common_pcmcia_cpufreq_nb(struct notifier_block *nb,
741 unsigned long val, void *data)
742{
743 struct soc_pcmcia_socket *skt = container_of(nb, struct soc_pcmcia_socket, cpufreq_nb);
744 struct cpufreq_freqs *freqs = data;
745
746 return skt->ops->frequency_change(skt, val, freqs);
747}
748#endif
749
750void soc_pcmcia_init_one(struct soc_pcmcia_socket *skt,
751 const struct pcmcia_low_level *ops, struct device *dev)
752{
753 int i;
754
755 skt->ops = ops;
756 skt->socket.owner = ops->owner;
757 skt->socket.dev.parent = dev;
758 skt->socket.pci_irq = NO_IRQ;
759
760 for (i = 0; i < ARRAY_SIZE(skt->stat); i++)
761 skt->stat[i].gpio = -EINVAL;
762}
763EXPORT_SYMBOL(soc_pcmcia_init_one);
764
765void soc_pcmcia_remove_one(struct soc_pcmcia_socket *skt)
766{
767 del_timer_sync(&skt->poll_timer);
768
769 pcmcia_unregister_socket(&skt->socket);
770
771#ifdef CONFIG_CPU_FREQ
772 if (skt->ops->frequency_change)
773 cpufreq_unregister_notifier(&skt->cpufreq_nb,
774 CPUFREQ_TRANSITION_NOTIFIER);
775#endif
776
777 soc_pcmcia_hw_shutdown(skt);
778
779
780 soc_common_pcmcia_config_skt(skt, &dead_socket);
781
782 iounmap(skt->virt_io);
783 skt->virt_io = NULL;
784 release_resource(&skt->res_attr);
785 release_resource(&skt->res_mem);
786 release_resource(&skt->res_io);
787 release_resource(&skt->res_skt);
788}
789EXPORT_SYMBOL(soc_pcmcia_remove_one);
790
791int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt)
792{
793 int ret;
794
795 skt->cs_state = dead_socket;
796
797 setup_timer(&skt->poll_timer, soc_common_pcmcia_poll_event,
798 (unsigned long)skt);
799 skt->poll_timer.expires = jiffies + SOC_PCMCIA_POLL_PERIOD;
800
801 ret = request_resource(&iomem_resource, &skt->res_skt);
802 if (ret)
803 goto out_err_1;
804
805 ret = request_resource(&skt->res_skt, &skt->res_io);
806 if (ret)
807 goto out_err_2;
808
809 ret = request_resource(&skt->res_skt, &skt->res_mem);
810 if (ret)
811 goto out_err_3;
812
813 ret = request_resource(&skt->res_skt, &skt->res_attr);
814 if (ret)
815 goto out_err_4;
816
817 skt->virt_io = ioremap(skt->res_io.start, 0x10000);
818 if (skt->virt_io == NULL) {
819 ret = -ENOMEM;
820 goto out_err_5;
821 }
822
823
824
825
826
827
828 skt->ops->set_timing(skt);
829
830 ret = soc_pcmcia_hw_init(skt);
831 if (ret)
832 goto out_err_6;
833
834 skt->socket.ops = &soc_common_pcmcia_operations;
835 skt->socket.features = SS_CAP_STATIC_MAP|SS_CAP_PCCARD;
836 skt->socket.resource_ops = &pccard_static_ops;
837 skt->socket.irq_mask = 0;
838 skt->socket.map_size = PAGE_SIZE;
839 skt->socket.io_offset = (unsigned long)skt->virt_io;
840
841 skt->status = soc_common_pcmcia_skt_state(skt);
842
843#ifdef CONFIG_CPU_FREQ
844 if (skt->ops->frequency_change) {
845 skt->cpufreq_nb.notifier_call = soc_common_pcmcia_cpufreq_nb;
846
847 ret = cpufreq_register_notifier(&skt->cpufreq_nb,
848 CPUFREQ_TRANSITION_NOTIFIER);
849 if (ret < 0)
850 dev_err(skt->socket.dev.parent,
851 "unable to register CPU frequency change notifier for PCMCIA (%d)\n",
852 ret);
853 }
854#endif
855
856 ret = pcmcia_register_socket(&skt->socket);
857 if (ret)
858 goto out_err_7;
859
860 ret = device_create_file(&skt->socket.dev, &dev_attr_status);
861 if (ret)
862 goto out_err_8;
863
864 return ret;
865
866 out_err_8:
867 del_timer_sync(&skt->poll_timer);
868 pcmcia_unregister_socket(&skt->socket);
869
870 out_err_7:
871 soc_pcmcia_hw_shutdown(skt);
872 out_err_6:
873 iounmap(skt->virt_io);
874 out_err_5:
875 release_resource(&skt->res_attr);
876 out_err_4:
877 release_resource(&skt->res_mem);
878 out_err_3:
879 release_resource(&skt->res_io);
880 out_err_2:
881 release_resource(&skt->res_skt);
882 out_err_1:
883
884 return ret;
885}
886EXPORT_SYMBOL(soc_pcmcia_add_one);
887
888MODULE_AUTHOR("John Dorsey <john+@cs.cmu.edu>");
889MODULE_DESCRIPTION("Linux PCMCIA Card Services: Common SoC support");
890MODULE_LICENSE("Dual MPL/GPL");
891