MIPS: Alchemy: Basic support for the DB1300 board.
[linux-2.6.git] / drivers / pcmcia / vrc4171_card.c
1 /*
2  * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
3  *
4  * Copyright (C) 2003-2005  Yoichi Yuasa <yuasa@linux-mips.org>
5  *
6  *  This program is free software; you can redistribute it and/or modify
7  *  it under the terms of the GNU General Public License as published by
8  *  the Free Software Foundation; either version 2 of the License, or
9  *  (at your option) any later version.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20 #include <linux/init.h>
21 #include <linux/ioport.h>
22 #include <linux/interrupt.h>
23 #include <linux/module.h>
24 #include <linux/spinlock.h>
25 #include <linux/types.h>
26 #include <linux/platform_device.h>
27
28 #include <asm/io.h>
29
30 #include <pcmcia/ss.h>
31
32 #include "i82365.h"
33
34 MODULE_DESCRIPTION("NEC VRC4171 Card Controllers driver for Socket Services");
35 MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
36 MODULE_LICENSE("GPL");
37
38 #define CARD_MAX_SLOTS          2
39 #define CARD_SLOTA              0
40 #define CARD_SLOTB              1
41 #define CARD_SLOTB_OFFSET       0x40
42
43 #define CARD_MEM_START          0x10000000
44 #define CARD_MEM_END            0x13ffffff
45 #define CARD_MAX_MEM_OFFSET     0x3ffffff
46 #define CARD_MAX_MEM_SPEED      1000
47
48 #define CARD_CONTROLLER_INDEX   0x03e0
49 #define CARD_CONTROLLER_DATA    0x03e1
50  /* Power register */
51   #define VPP_GET_VCC           0x01
52   #define POWER_ENABLE          0x10
53  #define CARD_VOLTAGE_SENSE     0x1f
54   #define VCC_3VORXV_CAPABLE    0x00
55   #define VCC_XV_ONLY           0x01
56   #define VCC_3V_CAPABLE        0x02
57   #define VCC_5V_ONLY           0x03
58  #define CARD_VOLTAGE_SELECT    0x2f
59   #define VCC_3V                0x01
60   #define VCC_5V                0x00
61   #define VCC_XV                0x02
62   #define VCC_STATUS_3V         0x02
63   #define VCC_STATUS_5V         0x01
64   #define VCC_STATUS_XV         0x03
65  #define GLOBAL_CONTROL         0x1e
66   #define EXWRBK                0x04
67   #define IRQPM_EN              0x08
68   #define CLRPMIRQ              0x10
69
70 #define INTERRUPT_STATUS        0x05fa
71  #define IRQ_A                  0x02
72  #define IRQ_B                  0x04
73
74 #define CONFIGURATION1          0x05fe
75  #define SLOTB_CONFIG           0xc000
76  #define SLOTB_NONE             0x0000
77  #define SLOTB_PCCARD           0x4000
78  #define SLOTB_CF               0x8000
79  #define SLOTB_FLASHROM         0xc000
80
81 #define CARD_CONTROLLER_START   CARD_CONTROLLER_INDEX
82 #define CARD_CONTROLLER_END     CARD_CONTROLLER_DATA
83
84 #define IO_MAX_MAPS     2
85 #define MEM_MAX_MAPS    5
86
87 typedef enum {
88         SLOT_PROBE = 0,
89         SLOT_NOPROBE_IO,
90         SLOT_NOPROBE_MEM,
91         SLOT_NOPROBE_ALL,
92         SLOT_INITIALIZED,
93 } vrc4171_slot_t;
94
95 typedef enum {
96         SLOTB_IS_NONE,
97         SLOTB_IS_PCCARD,
98         SLOTB_IS_CF,
99         SLOTB_IS_FLASHROM,
100 } vrc4171_slotb_t;
101
102 typedef struct vrc4171_socket {
103         vrc4171_slot_t slot;
104         struct pcmcia_socket pcmcia_socket;
105         char name[24];
106         int csc_irq;
107         int io_irq;
108         spinlock_t lock;
109 } vrc4171_socket_t;
110
111 static vrc4171_socket_t vrc4171_sockets[CARD_MAX_SLOTS];
112 static vrc4171_slotb_t vrc4171_slotb = SLOTB_IS_NONE;
113 static char vrc4171_card_name[] = "NEC VRC4171 Card Controller";
114 static unsigned int vrc4171_irq;
115 static uint16_t vrc4171_irq_mask = 0xdeb8;
116
117 static struct resource vrc4171_card_resource[3] = {
118         {       .name           = vrc4171_card_name,
119                 .start          = CARD_CONTROLLER_START,
120                 .end            = CARD_CONTROLLER_END,
121                 .flags          = IORESOURCE_IO,        },
122         {       .name           = vrc4171_card_name,
123                 .start          = INTERRUPT_STATUS,
124                 .end            = INTERRUPT_STATUS,
125                 .flags          = IORESOURCE_IO,        },
126         {       .name           = vrc4171_card_name,
127                 .start          = CONFIGURATION1,
128                 .end            = CONFIGURATION1,
129                 .flags          = IORESOURCE_IO,        },
130 };
131
132 static struct platform_device vrc4171_card_device = {
133         .name           = vrc4171_card_name,
134         .id             = 0,
135         .num_resources  = 3,
136         .resource       = vrc4171_card_resource,
137 };
138
139 static inline uint16_t vrc4171_get_irq_status(void)
140 {
141         return inw(INTERRUPT_STATUS);
142 }
143
144 static inline void vrc4171_set_multifunction_pin(vrc4171_slotb_t config)
145 {
146         uint16_t config1;
147
148         config1 = inw(CONFIGURATION1);
149         config1 &= ~SLOTB_CONFIG;
150
151         switch (config) {
152         case SLOTB_IS_NONE:
153                 config1 |= SLOTB_NONE;
154                 break;
155         case SLOTB_IS_PCCARD:
156                 config1 |= SLOTB_PCCARD;
157                 break;
158         case SLOTB_IS_CF:
159                 config1 |= SLOTB_CF;
160                 break;
161         case SLOTB_IS_FLASHROM:
162                 config1 |= SLOTB_FLASHROM;
163                 break;
164         default:
165                 break;
166         }
167
168         outw(config1, CONFIGURATION1);
169 }
170
171 static inline uint8_t exca_read_byte(int slot, uint8_t index)
172 {
173         if (slot == CARD_SLOTB)
174                 index += CARD_SLOTB_OFFSET;
175
176         outb(index, CARD_CONTROLLER_INDEX);
177         return inb(CARD_CONTROLLER_DATA);
178 }
179
180 static inline uint16_t exca_read_word(int slot, uint8_t index)
181 {
182         uint16_t data;
183
184         if (slot == CARD_SLOTB)
185                 index += CARD_SLOTB_OFFSET;
186
187         outb(index++, CARD_CONTROLLER_INDEX);
188         data = inb(CARD_CONTROLLER_DATA);
189
190         outb(index, CARD_CONTROLLER_INDEX);
191         data |= ((uint16_t)inb(CARD_CONTROLLER_DATA)) << 8;
192
193         return data;
194 }
195
196 static inline uint8_t exca_write_byte(int slot, uint8_t index, uint8_t data)
197 {
198         if (slot == CARD_SLOTB)
199                 index += CARD_SLOTB_OFFSET;
200
201         outb(index, CARD_CONTROLLER_INDEX);
202         outb(data, CARD_CONTROLLER_DATA);
203
204         return data;
205 }
206
207 static inline uint16_t exca_write_word(int slot, uint8_t index, uint16_t data)
208 {
209         if (slot == CARD_SLOTB)
210                 index += CARD_SLOTB_OFFSET;
211
212         outb(index++, CARD_CONTROLLER_INDEX);
213         outb(data, CARD_CONTROLLER_DATA);
214
215         outb(index, CARD_CONTROLLER_INDEX);
216         outb((uint8_t)(data >> 8), CARD_CONTROLLER_DATA);
217
218         return data;
219 }
220
221 static inline int search_nonuse_irq(void)
222 {
223         int i;
224
225         for (i = 0; i < 16; i++) {
226                 if (vrc4171_irq_mask & (1 << i)) {
227                         vrc4171_irq_mask &= ~(1 << i);
228                         return i;
229                 }
230         }
231
232         return -1;
233 }
234
235 static int pccard_init(struct pcmcia_socket *sock)
236 {
237         vrc4171_socket_t *socket;
238         unsigned int slot;
239
240         sock->features |= SS_CAP_PCCARD | SS_CAP_PAGE_REGS;
241         sock->irq_mask = 0;
242         sock->map_size = 0x1000;
243         sock->pci_irq = vrc4171_irq;
244
245         slot = sock->sock;
246         socket = &vrc4171_sockets[slot];
247         socket->csc_irq = search_nonuse_irq();
248         socket->io_irq = search_nonuse_irq();
249
250         return 0;
251 }
252
253 static int pccard_get_status(struct pcmcia_socket *sock, u_int *value)
254 {
255         unsigned int slot;
256         uint8_t status, sense;
257         u_int val = 0;
258
259         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS || value == NULL)
260                 return -EINVAL;
261
262         slot = sock->sock;
263
264         status = exca_read_byte(slot, I365_STATUS);
265         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
266                 if (status & I365_CS_STSCHG)
267                         val |= SS_STSCHG;
268         } else {
269                 if (!(status & I365_CS_BVD1))
270                         val |= SS_BATDEAD;
271                 else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
272                         val |= SS_BATWARN;
273         }
274         if ((status & I365_CS_DETECT) == I365_CS_DETECT)
275                 val |= SS_DETECT;
276         if (status & I365_CS_WRPROT)
277                 val |= SS_WRPROT;
278         if (status & I365_CS_READY)
279                 val |= SS_READY;
280         if (status & I365_CS_POWERON)
281                 val |= SS_POWERON;
282
283         sense = exca_read_byte(slot, CARD_VOLTAGE_SENSE);
284         switch (sense) {
285         case VCC_3VORXV_CAPABLE:
286                 val |= SS_3VCARD | SS_XVCARD;
287                 break;
288         case VCC_XV_ONLY:
289                 val |= SS_XVCARD;
290                 break;
291         case VCC_3V_CAPABLE:
292                 val |= SS_3VCARD;
293                 break;
294         default:
295                 /* 5V only */
296                 break;
297         }
298
299         *value = val;
300
301         return 0;
302 }
303
304 static inline uint8_t set_Vcc_value(u_char Vcc)
305 {
306         switch (Vcc) {
307         case 33:
308                 return VCC_3V;
309         case 50:
310                 return VCC_5V;
311         }
312
313         /* Small voltage is chosen for safety. */
314         return VCC_3V;
315 }
316
317 static int pccard_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
318 {
319         vrc4171_socket_t *socket;
320         unsigned int slot;
321         uint8_t voltage, power, control, cscint;
322
323         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
324             (state->Vpp != state->Vcc && state->Vpp != 0) ||
325             (state->Vcc != 50 && state->Vcc != 33 && state->Vcc != 0))
326                 return -EINVAL;
327
328         slot = sock->sock;
329         socket = &vrc4171_sockets[slot];
330
331         spin_lock_irq(&socket->lock);
332
333         voltage = set_Vcc_value(state->Vcc);
334         exca_write_byte(slot, CARD_VOLTAGE_SELECT, voltage);
335
336         power = POWER_ENABLE;
337         if (state->Vpp == state->Vcc)
338                 power |= VPP_GET_VCC;
339         if (state->flags & SS_OUTPUT_ENA)
340                 power |= I365_PWR_OUT;
341         exca_write_byte(slot, I365_POWER, power);
342
343         control = 0;
344         if (state->io_irq != 0)
345                 control |= socket->io_irq;
346         if (state->flags & SS_IOCARD)
347                 control |= I365_PC_IOCARD;
348         if (state->flags & SS_RESET)
349                 control &= ~I365_PC_RESET;
350         else
351                 control |= I365_PC_RESET;
352         exca_write_byte(slot, I365_INTCTL, control);
353
354         cscint = 0;
355         exca_write_byte(slot, I365_CSCINT, cscint);
356         exca_read_byte(slot, I365_CSC); /* clear CardStatus change */
357         if (state->csc_mask != 0)
358                 cscint |= socket->csc_irq << 8;
359         if (state->flags & SS_IOCARD) {
360                 if (state->csc_mask & SS_STSCHG)
361                         cscint |= I365_CSC_STSCHG;
362         } else {
363                 if (state->csc_mask & SS_BATDEAD)
364                         cscint |= I365_CSC_BVD1;
365                 if (state->csc_mask & SS_BATWARN)
366                         cscint |= I365_CSC_BVD2;
367         }
368         if (state->csc_mask & SS_READY)
369                 cscint |= I365_CSC_READY;
370         if (state->csc_mask & SS_DETECT)
371                 cscint |= I365_CSC_DETECT;
372         exca_write_byte(slot, I365_CSCINT, cscint);
373
374         spin_unlock_irq(&socket->lock);
375
376         return 0;
377 }
378
379 static int pccard_set_io_map(struct pcmcia_socket *sock, struct pccard_io_map *io)
380 {
381         unsigned int slot;
382         uint8_t ioctl, addrwin;
383         u_char map;
384
385         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
386             io == NULL || io->map >= IO_MAX_MAPS ||
387             io->start > 0xffff || io->stop > 0xffff || io->start > io->stop)
388                 return -EINVAL;
389
390         slot = sock->sock;
391         map = io->map;
392
393         addrwin = exca_read_byte(slot, I365_ADDRWIN);
394         if (addrwin & I365_ENA_IO(map)) {
395                 addrwin &= ~I365_ENA_IO(map);
396                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
397         }
398
399         exca_write_word(slot, I365_IO(map)+I365_W_START, io->start);
400         exca_write_word(slot, I365_IO(map)+I365_W_STOP, io->stop);
401
402         ioctl = 0;
403         if (io->speed > 0)
404                 ioctl |= I365_IOCTL_WAIT(map);
405         if (io->flags & MAP_16BIT)
406                 ioctl |= I365_IOCTL_16BIT(map);
407         if (io->flags & MAP_AUTOSZ)
408                 ioctl |= I365_IOCTL_IOCS16(map);
409         if (io->flags & MAP_0WS)
410                 ioctl |= I365_IOCTL_0WS(map);
411         exca_write_byte(slot, I365_IOCTL, ioctl);
412
413         if (io->flags & MAP_ACTIVE) {
414                 addrwin |= I365_ENA_IO(map);
415                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
416         }
417
418         return 0;
419 }
420
421 static int pccard_set_mem_map(struct pcmcia_socket *sock, struct pccard_mem_map *mem)
422 {
423         unsigned int slot;
424         uint16_t start, stop, offset;
425         uint8_t addrwin;
426         u_char map;
427
428         if (sock == NULL || sock->sock >= CARD_MAX_SLOTS ||
429             mem == NULL || mem->map >= MEM_MAX_MAPS ||
430             mem->res->start < CARD_MEM_START || mem->res->start > CARD_MEM_END ||
431             mem->res->end < CARD_MEM_START || mem->res->end > CARD_MEM_END ||
432             mem->res->start > mem->res->end ||
433             mem->card_start > CARD_MAX_MEM_OFFSET ||
434             mem->speed > CARD_MAX_MEM_SPEED)
435                 return -EINVAL;
436
437         slot = sock->sock;
438         map = mem->map;
439
440         addrwin = exca_read_byte(slot, I365_ADDRWIN);
441         if (addrwin & I365_ENA_MEM(map)) {
442                 addrwin &= ~I365_ENA_MEM(map);
443                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
444         }
445
446         start = (mem->res->start >> 12) & 0x3fff;
447         if (mem->flags & MAP_16BIT)
448                 start |= I365_MEM_16BIT;
449         exca_write_word(slot, I365_MEM(map)+I365_W_START, start);
450
451         stop = (mem->res->end >> 12) & 0x3fff;
452         switch (mem->speed) {
453         case 0:
454                 break;
455         case 1:
456                 stop |= I365_MEM_WS0;
457                 break;
458         case 2:
459                 stop |= I365_MEM_WS1;
460                 break;
461         default:
462                 stop |= I365_MEM_WS0 | I365_MEM_WS1;
463                 break;
464         }
465         exca_write_word(slot, I365_MEM(map)+I365_W_STOP, stop);
466
467         offset = (mem->card_start >> 12) & 0x3fff;
468         if (mem->flags & MAP_ATTRIB)
469                 offset |= I365_MEM_REG;
470         if (mem->flags & MAP_WRPROT)
471                 offset |= I365_MEM_WRPROT;
472         exca_write_word(slot, I365_MEM(map)+I365_W_OFF, offset);
473
474         if (mem->flags & MAP_ACTIVE) {
475                 addrwin |= I365_ENA_MEM(map);
476                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
477         }
478
479         return 0;
480 }
481
482 static struct pccard_operations vrc4171_pccard_operations = {
483         .init                   = pccard_init,
484         .get_status             = pccard_get_status,
485         .set_socket             = pccard_set_socket,
486         .set_io_map             = pccard_set_io_map,
487         .set_mem_map            = pccard_set_mem_map,
488 };
489
490 static inline unsigned int get_events(int slot)
491 {
492         unsigned int events = 0;
493         uint8_t status, csc;
494
495         status = exca_read_byte(slot, I365_STATUS);
496         csc = exca_read_byte(slot, I365_CSC);
497
498         if (exca_read_byte(slot, I365_INTCTL) & I365_PC_IOCARD) {
499                 if ((csc & I365_CSC_STSCHG) && (status & I365_CS_STSCHG))
500                         events |= SS_STSCHG;
501         } else {
502                 if (csc & (I365_CSC_BVD1 | I365_CSC_BVD2)) {
503                         if (!(status & I365_CS_BVD1))
504                                 events |= SS_BATDEAD;
505                         else if ((status & (I365_CS_BVD1 | I365_CS_BVD2)) == I365_CS_BVD1)
506                                 events |= SS_BATWARN;
507                 }
508         }
509         if ((csc & I365_CSC_READY) && (status & I365_CS_READY))
510                 events |= SS_READY;
511         if ((csc & I365_CSC_DETECT) && ((status & I365_CS_DETECT) == I365_CS_DETECT))
512                 events |= SS_DETECT;
513
514         return events;
515 }
516
517 static irqreturn_t pccard_interrupt(int irq, void *dev_id)
518 {
519         vrc4171_socket_t *socket;
520         unsigned int events;
521         irqreturn_t retval = IRQ_NONE;
522         uint16_t status;
523
524         status = vrc4171_get_irq_status();
525         if (status & IRQ_A) {
526                 socket = &vrc4171_sockets[CARD_SLOTA];
527                 if (socket->slot == SLOT_INITIALIZED) {
528                         if (status & (1 << socket->csc_irq)) {
529                                 events = get_events(CARD_SLOTA);
530                                 if (events != 0) {
531                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
532                                         retval = IRQ_HANDLED;
533                                 }
534                         }
535                 }
536         }
537
538         if (status & IRQ_B) {
539                 socket = &vrc4171_sockets[CARD_SLOTB];
540                 if (socket->slot == SLOT_INITIALIZED) {
541                         if (status & (1 << socket->csc_irq)) {
542                                 events = get_events(CARD_SLOTB);
543                                 if (events != 0) {
544                                         pcmcia_parse_events(&socket->pcmcia_socket, events);
545                                         retval = IRQ_HANDLED;
546                                 }
547                         }
548                 }
549         }
550
551         return retval;
552 }
553
554 static inline void reserve_using_irq(int slot)
555 {
556         unsigned int irq;
557
558         irq = exca_read_byte(slot, I365_INTCTL);
559         irq &= 0x0f;
560         vrc4171_irq_mask &= ~(1 << irq);
561
562         irq = exca_read_byte(slot, I365_CSCINT);
563         irq = (irq & 0xf0) >> 4;
564         vrc4171_irq_mask &= ~(1 << irq);
565 }
566
567 static int __devinit vrc4171_add_sockets(void)
568 {
569         vrc4171_socket_t *socket;
570         int slot, retval;
571
572         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
573                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
574                         continue;
575
576                 socket = &vrc4171_sockets[slot];
577                 if (socket->slot != SLOT_PROBE) {
578                         uint8_t addrwin;
579
580                         switch (socket->slot) {
581                         case SLOT_NOPROBE_MEM:
582                                 addrwin = exca_read_byte(slot, I365_ADDRWIN);
583                                 addrwin &= 0x1f;
584                                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
585                                 break;
586                         case SLOT_NOPROBE_IO:
587                                 addrwin = exca_read_byte(slot, I365_ADDRWIN);
588                                 addrwin &= 0xc0;
589                                 exca_write_byte(slot, I365_ADDRWIN, addrwin);
590                                 break;
591                         default:
592                                 break;
593                         }
594
595                         reserve_using_irq(slot);
596                         continue;
597                 }
598
599                 sprintf(socket->name, "NEC VRC4171 Card Slot %1c", 'A' + slot);
600                 socket->pcmcia_socket.dev.parent = &vrc4171_card_device.dev;
601                 socket->pcmcia_socket.ops = &vrc4171_pccard_operations;
602                 socket->pcmcia_socket.owner = THIS_MODULE;
603
604                 retval = pcmcia_register_socket(&socket->pcmcia_socket);
605                 if (retval < 0)
606                         return retval;
607
608                 exca_write_byte(slot, I365_ADDRWIN, 0);
609                 exca_write_byte(slot, GLOBAL_CONTROL, 0);
610
611                 socket->slot = SLOT_INITIALIZED;
612         }
613
614         return 0;
615 }
616
617 static void vrc4171_remove_sockets(void)
618 {
619         vrc4171_socket_t *socket;
620         int slot;
621
622         for (slot = 0; slot < CARD_MAX_SLOTS; slot++) {
623                 if (slot == CARD_SLOTB && vrc4171_slotb == SLOTB_IS_NONE)
624                         continue;
625
626                 socket = &vrc4171_sockets[slot];
627                 if (socket->slot == SLOT_INITIALIZED)
628                         pcmcia_unregister_socket(&socket->pcmcia_socket);
629
630                 socket->slot = SLOT_PROBE;
631         }
632 }
633
634 static int __devinit vrc4171_card_setup(char *options)
635 {
636         if (options == NULL || *options == '\0')
637                 return 1;
638
639         if (strncmp(options, "irq:", 4) == 0) {
640                 int irq;
641                 options += 4;
642                 irq = simple_strtoul(options, &options, 0);
643                 if (irq >= 0 && irq < nr_irqs)
644                         vrc4171_irq = irq;
645
646                 if (*options != ',')
647                         return 1;
648                 options++;
649         }
650
651         if (strncmp(options, "slota:", 6) == 0) {
652                 options += 6;
653                 if (*options != '\0') {
654                         if (strncmp(options, "memnoprobe", 10) == 0) {
655                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_MEM;
656                                 options += 10;
657                         } else if (strncmp(options, "ionoprobe", 9) == 0) {
658                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_IO;
659                                 options += 9;
660                         } else if ( strncmp(options, "noprobe", 7) == 0) {
661                                 vrc4171_sockets[CARD_SLOTA].slot = SLOT_NOPROBE_ALL;
662                                 options += 7;
663                         }
664
665                         if (*options != ',')
666                                 return 1;
667                         options++;
668                 } else
669                         return 1;
670
671         }
672
673         if (strncmp(options, "slotb:", 6) == 0) {
674                 options += 6;
675                 if (*options != '\0') {
676                         if (strncmp(options, "pccard", 6) == 0) {
677                                 vrc4171_slotb = SLOTB_IS_PCCARD;
678                                 options += 6;
679                         } else if (strncmp(options, "cf", 2) == 0) {
680                                 vrc4171_slotb = SLOTB_IS_CF;
681                                 options += 2;
682                         } else if (strncmp(options, "flashrom", 8) == 0) {
683                                 vrc4171_slotb = SLOTB_IS_FLASHROM;
684                                 options += 8;
685                         } else if (strncmp(options, "none", 4) == 0) {
686                                 vrc4171_slotb = SLOTB_IS_NONE;
687                                 options += 4;
688                         }
689
690                         if (*options != ',')
691                                 return 1;
692                         options++;
693
694                         if (strncmp(options, "memnoprobe", 10) == 0)
695                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_MEM;
696                         if (strncmp(options, "ionoprobe", 9) == 0)
697                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_IO;
698                         if (strncmp(options, "noprobe", 7) == 0)
699                                 vrc4171_sockets[CARD_SLOTB].slot = SLOT_NOPROBE_ALL;
700                 }
701         }
702
703         return 1;
704 }
705
706 __setup("vrc4171_card=", vrc4171_card_setup);
707
708 static struct platform_driver vrc4171_card_driver = {
709         .driver = {
710                 .name           = vrc4171_card_name,
711                 .owner          = THIS_MODULE,
712         },
713 };
714
715 static int __devinit vrc4171_card_init(void)
716 {
717         int retval;
718
719         retval = platform_driver_register(&vrc4171_card_driver);
720         if (retval < 0)
721                 return retval;
722
723         retval = platform_device_register(&vrc4171_card_device);
724         if (retval < 0) {
725                 platform_driver_unregister(&vrc4171_card_driver);
726                 return retval;
727         }
728
729         vrc4171_set_multifunction_pin(vrc4171_slotb);
730
731         retval = vrc4171_add_sockets();
732         if (retval == 0)
733                 retval = request_irq(vrc4171_irq, pccard_interrupt, IRQF_SHARED,
734                                      vrc4171_card_name, vrc4171_sockets);
735
736         if (retval < 0) {
737                 vrc4171_remove_sockets();
738                 platform_device_unregister(&vrc4171_card_device);
739                 platform_driver_unregister(&vrc4171_card_driver);
740                 return retval;
741         }
742
743         printk(KERN_INFO "%s, connected to IRQ %d\n",
744                 vrc4171_card_driver.driver.name, vrc4171_irq);
745
746         return 0;
747 }
748
749 static void __devexit vrc4171_card_exit(void)
750 {
751         free_irq(vrc4171_irq, vrc4171_sockets);
752         vrc4171_remove_sockets();
753         platform_device_unregister(&vrc4171_card_device);
754         platform_driver_unregister(&vrc4171_card_driver);
755 }
756
757 module_init(vrc4171_card_init);
758 module_exit(vrc4171_card_exit);