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vrc4171_card.c
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1 /*
2  * vrc4171_card.c, NEC VRC4171 Card Controller driver for Socket Services.
3  *
4  * Copyright (C) 2003-2005 Yoichi Yuasa <[email protected]>
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 <[email protected]>");
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);
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