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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / pcmcia / vrc4171_card.c
blob177d778921440ff9d82d167c7e5bc6b1de2b064b
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
4 *
5 * Copyright (C) 2003-2005 Yoichi Yuasa <yuasa@linux-mips.org>
6 */
7 #include <linux/init.h>
8 #include <linux/ioport.h>
9 #include <linux/interrupt.h>
10 #include <linux/module.h>
11 #include <linux/spinlock.h>
12 #include <linux/types.h>
13 #include <linux/platform_device.h>
14
15 #include <asm/io.h>
16
17 #include <pcmcia/ss.h>
18
19 #include "i82365.h"
20
21 MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
22 MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
23 MODULE_LICENSE("GPL");
24
25 #define CARD_MAX_SLOTS 2
26 #define CARD_SLOTA 0
27 #define CARD_SLOTB 1
28 #define CARD_SLOTB_OFFSET 0x40
29
30 #define CARD_MEM_START 0x10000000
31 #define CARD_MEM_END 0x13ffffff
32 #define CARD_MAX_MEM_OFFSET 0x3ffffff
33 #define CARD_MAX_MEM_SPEED 1000
34
35 #define CARD_CONTROLLER_INDEX 0x03e0
36 #define CARD_CONTROLLER_DATA 0x03e1
37 /* Power register */
38 #define VPP_GET_VCC 0x01
39 #define POWER_ENABLE 0x10
40 #define CARD_VOLTAGE_SENSE 0x1f
41 #define VCC_3VORXV_CAPABLE 0x00
42 #define VCC_XV_ONLY 0x01
43 #define VCC_3V_CAPABLE 0x02
44 #define VCC_5V_ONLY 0x03
45 #define CARD_VOLTAGE_SELECT 0x2f
46 #define VCC_3V 0x01
47 #define VCC_5V 0x00
48 #define VCC_XV 0x02
49 #define VCC_STATUS_3V 0x02
50 #define VCC_STATUS_5V 0x01
51 #define VCC_STATUS_XV 0x03
52 #define GLOBAL_CONTROL 0x1e
53 #define EXWRBK 0x04
54 #define IRQPM_EN 0x08
55 #define CLRPMIRQ 0x10
56
57 #define INTERRUPT_STATUS 0x05fa
58 #define IRQ_A 0x02
59 #define IRQ_B 0x04
60
61 #define CONFIGURATION1 0x05fe
62 #define SLOTB_CONFIG 0xc000
63 #define SLOTB_NONE 0x0000
64 #define SLOTB_PCCARD 0x4000
65 #define SLOTB_CF 0x8000
66 #define SLOTB_FLASHROM 0xc000
67
68 #define CARD_CONTROLLER_START CARD_CONTROLLER_INDEX
69 #define CARD_CONTROLLER_END CARD_CONTROLLER_DATA
70
71 #define IO_MAX_MAPS 2
72 #define MEM_MAX_MAPS 5
73
74 enum vrc4171_slot {
75 SLOT_PROBE = 0,
76 SLOT_NOPROBE_IO,
77 SLOT_NOPROBE_MEM,
78 SLOT_NOPROBE_ALL,
79 SLOT_INITIALIZED,
80 };
81
82 enum vrc4171_slotb {
83 SLOTB_IS_NONE,
84 SLOTB_IS_PCCARD,
85 SLOTB_IS_CF,
86 SLOTB_IS_FLASHROM,
87 };
88
89 struct vrc4171_socket {
90 enum vrc4171_slot slot;
91 struct pcmcia_socket pcmcia_socket;
92 char name[24];
93 int csc_irq;
94 int io_irq;
95 spinlock_t lock;
96 };
97
98 static struct vrc4171_socket vrc4171_sockets[CARD_MAX_SLOTS];
99 static enum vrc4171_slotb vrc4171_slotb = SLOTB_IS_NONE;
100 static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
101 static unsigned int vrc4171_irq;
102 static uint16_t vrc4171_irq_mask = 0xdeb8;
103
104 static struct resource vrc4171_card_resource[3] = {
105 { .name = vrc4171_card_name,
106 .start = CARD_CONTROLLER_START,
107 .end = CARD_CONTROLLER_END,
108 .flags = IORESOURCE_IO, },
109 { .name = vrc4171_card_name,
110 .start = INTERRUPT_STATUS,
111 .end = INTERRUPT_STATUS,
112 .flags = IORESOURCE_IO, },
113 { .name = vrc4171_card_name,
114 .start = CONFIGURATION1,
115 .end = CONFIGURATION1,
116 .flags = IORESOURCE_IO, },
117 };
118
119 static struct platform_device vrc4171_card_device = {
120 .name = vrc4171_card_name,
121 .id = 0,
122 .num_resources = 3,
123 .resource = vrc4171_card_resource,
124 };
125
126 static inline uint16_t vrc4171_get_irq_status(void)
127 {
128 return inw(INTERRUPT_STATUS);
129 }
130
131 static inline void vrc4171_set_multifunction_pin(enum vrc4171_slotb config)
132 {
133 uint16_t config1;
134
135 config1 = inw(CONFIGURATION1);
136 config1 &= ~SLOTB_CONFIG;
137
138 switch (config) {
139 case SLOTB_IS_NONE:
140 config1 |= SLOTB_NONE;
141 break;
142 case SLOTB_IS_PCCARD:
143 config1 |= SLOTB_PCCARD;
144 break;
145 case SLOTB_IS_CF:
146 config1 |= SLOTB_CF;
147 break;
148 case SLOTB_IS_FLASHROM:
149 config1 |= SLOTB_FLASHROM;
150 break;
151 default:
152 break;
153 }
154
155 outw(config1, CONFIGURATION1);
156 }
157
158 static inline uint8_t exca_read_byte(int slot, uint8_t index)
159 {
160 if (slot == CARD_SLOTB)
161 index += CARD_SLOTB_OFFSET;
162
163 outb(index, CARD_CONTROLLER_INDEX);
164 return inb(CARD_CONTROLLER_DATA);
165 }
166
167 static inline uint16_t exca_read_word(int slot, uint8_t index)
168 {
169 uint16_t data;
170
171 if (slot == CARD_SLOTB)
172 index += CARD_SLOTB_OFFSET;
173
174 outb(index++, CARD_CONTROLLER_INDEX);
175 data = inb(CARD_CONTROLLER_DATA);
176
177 outb(index, CARD_CONTROLLER_INDEX);
178 data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
179
180 return data;
181 }
182
183 static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
184 {
185 if (slot == CARD_SLOTB)
186 index += CARD_SLOTB_OFFSET;
187
188 outb(index, CARD_CONTROLLER_INDEX);
189 outb(data, CARD_CONTROLLER_DATA);
190
191 return data;
192 }
193
194 static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
195 {
196 if (slot == CARD_SLOTB)
197 index += CARD_SLOTB_OFFSET;
198
199 outb(index++, CARD_CONTROLLER_INDEX);
200 outb(data, CARD_CONTROLLER_DATA);
201
202 outb(index, CARD_CONTROLLER_INDEX);
203 outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
204
205 return data;
206 }
207
208 static inline int search_nonuse_irq(void)
209 {
210 int i;
211
212 for (i = 0; i < 16; i++) {
213 if (vrc4171_irq_mask & (1 << i)) {
214 vrc4171_irq_mask &= ~(1 << i);
215 return i;
216 }
217 }
218
219 return -1;
220 }
221
222 static int pccard_init(struct pcmcia_socket *sock)
223 {
224 struct vrc4171_socket *socket;
225 unsigned int slot;
226
227 sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
228 sock->irq_mask = 0;
229 sock->map_size = 0x1000;
230 sock->pci_irq = vrc4171_irq;
231
232 slot = sock->sock;
233 socket = &vrc4171_sockets[slot];
234 socket->csc_irq = search_nonuse_irq();
235 socket->io_irq = search_nonuse_irq();
236 spin_lock_init(&socket->lock);
237
238 return 0;
239 }
240
241 static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
242 {
243 unsigned int slot;
244 uint8_t status, sense;
245 u_int val = 0;
246
247 if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
248 return -EINVAL;
249
250 slot = sock->sock;
251
252 status = exca_read_byte(slot, I365_STATUS);
253 if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
254 if (status & I365_CS_STSCHG)
255 val |= SS_STSCHG;
256 } else {
257 if (!(status & I365_CS_BVD1))
258 val |= SS_BATDEAD;
259 else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
260 val |= SS_BATWARN;
261 }
262 if ((status & I365_CS_DETECT) == I365_CS_DETECT)
263 val |= SS_DETECT;
264 if (status & I365_CS_WRPROT)
265 val |= SS_WRPROT;
266 if (status & I365_CS_READY)
267 val |= SS_READY;
268 if (status & I365_CS_POWERON)
269 val |= SS_POWERON;
270
271 sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
272 switch (sense) {
273 case VCC_3VORXV_CAPABLE:
274 val |= SS_3VCARD | SS_XVCARD;
275 break;
276 case VCC_XV_ONLY:
277 val |= SS_XVCARD;
278 break;
279 case VCC_3V_CAPABLE:
280 val |= SS_3VCARD;
281 break;
282 default:
283 /* 5V only */
284 break;
285 }
286
287 *value = val;
288
289 return 0;
290 }
291
292 static inline uint8_t set_Vcc_value(u_char Vcc)
293 {
294 switch (Vcc) {
295 case 33:
296 return VCC_3V;
297 case 50:
298 return VCC_5V;
299 }
300
301 /* Small voltage is chosen for safety. */
302 return VCC_3V;
303 }
304
305 static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
306 {
307 struct vrc4171_socket *socket;
308 unsigned int slot;
309 uint8_t voltage, power, control, cscint;
310
311 if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
312 (state->Vpp != state->Vcc && state->Vpp != 0) ||
313 (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
314 return -EINVAL;
315
316 slot = sock->sock;
317 socket = &vrc4171_sockets[slot];
318
319 spin_lock_irq(&socket->lock);
320
321 voltage = set_Vcc_value(state->Vcc);
322 exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
323
324 power = POWER_ENABLE;
325 if (state->Vpp == state->Vcc)
326 power |= VPP_GET_VCC;
327 if (state->flags & SS_OUTPUT_ENA)
328 power |= I365_PWR_OUT;
329 exca_write_byte(slot, I365_POWER, power);
330
331 control = 0;
332 if (state->io_irq != 0)
333 control |= socket->io_irq;
334 if (state->flags & SS_IOCARD)
335 control |= I365_PC_IOCARD;
336 if (state->flags & SS_RESET)
337 control &= ~I365_PC_RESET;
338 else
339 control |= I365_PC_RESET;
340 exca_write_byte(slot, I365_INTCTL, control);
341
342 cscint = 0;
343 exca_write_byte(slot, I365_CSCINT, cscint);
344 exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
345 if (state->csc_mask != 0)
346 cscint |= socket->csc_irq << 8;
347 if (state->flags & SS_IOCARD) {
348 if (state->csc_mask & SS_STSCHG)
349 cscint |= I365_CSC_STSCHG;
350 } else {
351 if (state->csc_mask & SS_BATDEAD)
352 cscint |= I365_CSC_BVD1;
353 if (state->csc_mask & SS_BATWARN)
354 cscint |= I365_CSC_BVD2;
355 }
356 if (state->csc_mask & SS_READY)
357 cscint |= I365_CSC_READY;
358 if (state->csc_mask & SS_DETECT)
359 cscint |= I365_CSC_DETECT;
360 exca_write_byte(slot, I365_CSCINT, cscint);
361
362 spin_unlock_irq(&socket->lock);
363
364 return 0;
365 }
366
367 static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
368 {
369 unsigned int slot;
370 uint8_t ioctl, addrwin;
371 u_char map;
372
373 if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
374 io == NULL || io->map >= IO_MAX_MAPS ||
375 io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
376 return -EINVAL;
377
378 slot = sock->sock;
379 map = io->map;
380
381 addrwin = exca_read_byte(slot, I365_ADDRWIN);
382 if (addrwin & I365_ENA_IO(map)) {
383 addrwin &= ~I365_ENA_IO(map);
384 exca_write_byte(slot, I365_ADDRWIN, addrwin);
385 }
386
387 exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
388 exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
389
390 ioctl = 0;
391 if (io->speed > 0)
392 ioctl |= I365_IOCTL_WAIT(map);
393 if (io->flags & MAP_16BIT)
394 ioctl |= I365_IOCTL_16BIT(map);
395 if (io->flags & MAP_AUTOSZ)
396 ioctl |= I365_IOCTL_IOCS16(map);
397 if (io->flags & MAP_0WS)
398 ioctl |= I365_IOCTL_0WS(map);
399 exca_write_byte(slot, I365_IOCTL, ioctl);
400
401 if (io->flags & MAP_ACTIVE) {
402 addrwin |= I365_ENA_IO(map);
403 exca_write_byte(slot, I365_ADDRWIN, addrwin);
404 }
405
406 return 0;
407 }
408
409 static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
410 {
411 unsigned int slot;
412 uint16_t start, stop, offset;
413 uint8_t addrwin;
414 u_char map;
415
416 if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
417 mem == NULL || mem->map >= MEM_MAX_MAPS ||
418 mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
419 mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
420 mem->res->start > mem->res->end ||
421 mem->card_start > CARD_MAX_MEM_OFFSET ||
422 mem->speed > CARD_MAX_MEM_SPEED)
423 return -EINVAL;
424
425 slot = sock->sock;
426 map = mem->map;
427
428 addrwin = exca_read_byte(slot, I365_ADDRWIN);
429 if (addrwin & I365_ENA_MEM(map)) {
430 addrwin &= ~I365_ENA_MEM(map);
431 exca_write_byte(slot, I365_ADDRWIN, addrwin);
432 }
433
434 start = (mem->res->start >> 12) & 0x3fff;
435 if (mem->flags & MAP_16BIT)
436 start |= I365_MEM_16BIT;
437 exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
438
439 stop = (mem->res->end >> 12) & 0x3fff;
440 switch (mem->speed) {
441 case 0:
442 break;
443 case 1:
444 stop |= I365_MEM_WS0;
445 break;
446 case 2:
447 stop |= I365_MEM_WS1;
448 break;
449 default:
450 stop |= I365_MEM_WS0 | I365_MEM_WS1;
451 break;
452 }
453 exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
454
455 offset = (mem->card_start >> 12) & 0x3fff;
456 if (mem->flags & MAP_ATTRIB)
457 offset |= I365_MEM_REG;
458 if (mem->flags & MAP_WRPROT)
459 offset |= I365_MEM_WRPROT;
460 exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
461
462 if (mem->flags & MAP_ACTIVE) {
463 addrwin |= I365_ENA_MEM(map);
464 exca_write_byte(slot, I365_ADDRWIN, addrwin);
465 }
466
467 return 0;
468 }
469
470 static struct pccard_operations vrc4171_pccard_operations = {
471 .init = pccard_init,
472 .get_status = pccard_get_status,
473 .set_socket = pccard_set_socket,
474 .set_io_map = pccard_set_io_map,
475 .set_mem_map = pccard_set_mem_map,
476 };
477
478 static inline unsigned int get_events(int slot)
479 {
480 unsigned int events = 0;
481 uint8_t status, csc;
482
483 status = exca_read_byte(slot, I365_STATUS);
484 csc = exca_read_byte(slot, I365_CSC);
485
486 if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
487 if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
488 events |= SS_STSCHG;
489 } else {
490 if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
491 if (!(status & I365_CS_BVD1))
492 events |= SS_BATDEAD;
493 else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
494 events |= SS_BATWARN;
495 }
496 }
497 if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
498 events |= SS_READY;
499 if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
500 events |= SS_DETECT;
501
502 return events;
503 }
504
505 static irqreturn_t pccard_interrupt(int irq, void *dev_id)
506 {
507 struct vrc4171_socket *socket;
508 unsigned int events;
509 irqreturn_t retval = IRQ_NONE;
510 uint16_t status;
511
512 status = vrc4171_get_irq_status();
513 if (status & IRQ_A) {
514 socket = &vrc4171_sockets[CARD_SLOTA];
515 if (socket->slot == SLOT_INITIALIZED) {
516 if (status & (1 << socket->csc_irq)) {
517 events = get_events(CARD_SLOTA);
518 if (events != 0) {
519 pcmcia_parse_events(&socket->pcmcia_socket, events);
520 retval = IRQ_HANDLED;
521 }
522 }
523 }
524 }
525
526 if (status & IRQ_B) {
527 socket = &vrc4171_sockets[CARD_SLOTB];
528 if (socket->slot == SLOT_INITIALIZED) {
529 if (status & (1 << socket->csc_irq)) {
530 events = get_events(CARD_SLOTB);
531 if (events != 0) {
532 pcmcia_parse_events(&socket->pcmcia_socket, events);
533 retval = IRQ_HANDLED;
534 }
535 }
536 }
537 }
538
539 return retval;
540 }
541
542 static inline void reserve_using_irq(int slot)
543 {
544 unsigned int irq;
545
546 irq = exca_read_byte(slot, I365_INTCTL);
547 irq &= 0x0f;
548 vrc4171_irq_mask &= ~(1 << irq);
549
550 irq = exca_read_byte(slot, I365_CSCINT);
551 irq = (irq & 0xf0) >> 4;
552 vrc4171_irq_mask &= ~(1 << irq);
553 }
554
555 static int vrc4171_add_sockets(void)
556 {
557 struct vrc4171_socket *socket;
558 int slot, retval;
559
560 for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
561 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
562 continue;
563
564 socket = &vrc4171_sockets[slot];
565 if (socket->slot != SLOT_PROBE) {
566 uint8_t addrwin;
567
568 switch (socket->slot) {
569 case SLOT_NOPROBE_MEM:
570 addrwin = exca_read_byte(slot, I365_ADDRWIN);
571 addrwin &= 0x1f;
572 exca_write_byte(slot, I365_ADDRWIN, addrwin);
573 break;
574 case SLOT_NOPROBE_IO:
575 addrwin = exca_read_byte(slot, I365_ADDRWIN);
576 addrwin &= 0xc0;
577 exca_write_byte(slot, I365_ADDRWIN, addrwin);
578 break;
579 default:
580 break;
581 }
582
583 reserve_using_irq(slot);
584 continue;
585 }
586
587 sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
588 socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
589 socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
590 socket->pcmcia_socket.owner = THIS_MODULE;
591
592 retval = pcmcia_register_socket(&socket->pcmcia_socket);
593 if (retval < 0)
594 return retval;
595
596 exca_write_byte(slot, I365_ADDRWIN, 0);
597 exca_write_byte(slot, GLOBAL_CONTROL, 0);
598
599 socket->slot = SLOT_INITIALIZED;
600 }
601
602 return 0;
603 }
604
605 static void vrc4171_remove_sockets(void)
606 {
607 struct vrc4171_socket *socket;
608 int slot;
609
610 for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
611 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
612 continue;
613
614 socket = &vrc4171_sockets[slot];
615 if (socket->slot == SLOT_INITIALIZED)
616 pcmcia_unregister_socket(&socket->pcmcia_socket);
617
618 socket->slot = SLOT_PROBE;
619 }
620 }
621
622 static int vrc4171_card_setup(char *options)
623 {
624 if (options == NULL || *options == '\0')
625 return 1;
626
627 if (strncmp(options, "irq:", 4) == 0) {
628 int irq;
629 options += 4;
630 irq = simple_strtoul(options, &options, 0);
631 if (irq >= 0 && irq < nr_irqs)
632 vrc4171_irq = irq;
633
634 if (*options != ',')
635 return 1;
636 options++;
637 }
638
639 if (strncmp(options, "slota:", 6) == 0) {
640 options += 6;
641 if (*options != '\0') {
642 if (strncmp(options, "memnoprobe", 10) == 0) {
643 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
644 options += 10;
645 } else if (strncmp(options, "ionoprobe", 9) == 0) {
646 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
647 options += 9;
648 } else if ( strncmp(options, "noprobe", 7) == 0) {
649 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
650 options += 7;
651 }
652
653 if (*options != ',')
654 return 1;
655 options++;
656 } else
657 return 1;
658
659 }
660
661 if (strncmp(options, "slotb:", 6) == 0) {
662 options += 6;
663 if (*options != '\0') {
664 if (strncmp(options, "pccard", 6) == 0) {
665 vrc4171_slotb = SLOTB_IS_PCCARD;
666 options += 6;
667 } else if (strncmp(options, "cf", 2) == 0) {
668 vrc4171_slotb = SLOTB_IS_CF;
669 options += 2;
670 } else if (strncmp(options, "flashrom", 8) == 0) {
671 vrc4171_slotb = SLOTB_IS_FLASHROM;
672 options += 8;
673 } else if (strncmp(options, "none", 4) == 0) {
674 vrc4171_slotb = SLOTB_IS_NONE;
675 options += 4;
676 }
677
678 if (*options != ',')
679 return 1;
680 options++;
681
682 if (strncmp(options, "memnoprobe", 10) == 0)
683 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
684 if (strncmp(options, "ionoprobe", 9) == 0)
685 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
686 if (strncmp(options, "noprobe", 7) == 0)
687 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
688 }
689 }
690
691 return 1;
692 }
693
694 __setup("vrc4171_card=", vrc4171_card_setup);
695
696 static struct platform_driver vrc4171_card_driver = {
697 .driver = {
698 .name = vrc4171_card_name,
699 },
700 };
701
702 static int vrc4171_card_init(void)
703 {
704 int retval;
705
706 retval = platform_driver_register(&vrc4171_card_driver);
707 if (retval < 0)
708 return retval;
709
710 retval = platform_device_register(&vrc4171_card_device);
711 if (retval < 0) {
712 platform_driver_unregister(&vrc4171_card_driver);
713 return retval;
714 }
715
716 vrc4171_set_multifunction_pin(vrc4171_slotb);
717
718 retval = vrc4171_add_sockets();
719 if (retval == 0)
720 retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
721 vrc4171_card_name, vrc4171_sockets);
722
723 if (retval < 0) {
724 vrc4171_remove_sockets();
725 platform_device_unregister(&vrc4171_card_device);
726 platform_driver_unregister(&vrc4171_card_driver);
727 return retval;
728 }
729
730 printk(KERN_INFO "%s, connected to IRQ %d\n",
731 vrc4171_card_driver.driver.name, vrc4171_irq);
732
733 return 0;
734 }
735
736 static void vrc4171_card_exit(void)
737 {
738 free_irq(vrc4171_irq, vrc4171_sockets);
739 vrc4171_remove_sockets();
740 platform_device_unregister(&vrc4171_card_device);
741 platform_driver_unregister(&vrc4171_card_driver);
742 }
743
744 module_init(vrc4171_card_init);
745 module_exit(vrc4171_card_exit);
Linux with added FPC-III support