[PATCH] pcmcia: remove get_socket callback
[linux-2.6.git] / drivers / pcmcia / pd6729.c
1 /*
2  * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
3  *
4  * Based on the i82092.c driver.
5  *
6  * This software may be used and distributed according to the terms of
7  * the GNU General Public License, incorporated herein by reference.
8  */
9
10 #include <linux/kernel.h>
11 #include <linux/config.h>
12 #include <linux/module.h>
13 #include <linux/pci.h>
14 #include <linux/init.h>
15 #include <linux/workqueue.h>
16 #include <linux/interrupt.h>
17 #include <linux/device.h>
18
19 #include <pcmcia/cs_types.h>
20 #include <pcmcia/ss.h>
21 #include <pcmcia/cs.h>
22
23 #include <asm/system.h>
24 #include <asm/io.h>
25
26 #include "pd6729.h"
27 #include "i82365.h"
28 #include "cirrus.h"
29
30 MODULE_LICENSE("GPL");
31 MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
32 MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");
33
34 #define MAX_SOCKETS 2
35
36 /*
37  * simple helper functions
38  * External clock time, in nanoseconds.  120 ns = 8.33 MHz
39  */
40 #define to_cycles(ns)   ((ns)/120)
41
42 #ifndef NO_IRQ
43 #define NO_IRQ  ((unsigned int)(0))
44 #endif
45
46 /*
47  * PARAMETERS
48  *  irq_mode=n
49  *     Specifies the interrupt delivery mode.  The default (1) is to use PCI
50  *     interrupts; a value of 0 selects ISA interrupts. This must be set for
51  *     correct operation of PCI card readers.
52  *
53  *  irq_list=i,j,...
54  *     This list limits the set of interrupts that can be used by PCMCIA
55  *     cards.
56  *     The default list is 3,4,5,7,9,10,11.
57  *     (irq_list parameter is not used, if irq_mode = 1)
58  */
59
60 static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
61 static int irq_list[16];
62 static int irq_list_count = 0;
63
64 module_param(irq_mode, int, 0444);
65 module_param_array(irq_list, int, &irq_list_count, 0444);
66 MODULE_PARM_DESC(irq_mode,
67                 "interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
68 MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards");
69
70 static DEFINE_SPINLOCK(port_lock);
71
72 /* basic value read/write functions */
73
74 static unsigned char indirect_read(struct pd6729_socket *socket,
75                                    unsigned short reg)
76 {
77         unsigned long port;
78         unsigned char val;
79         unsigned long flags;
80
81         spin_lock_irqsave(&port_lock, flags);
82         reg += socket->number * 0x40;
83         port = socket->io_base;
84         outb(reg, port);
85         val = inb(port + 1);
86         spin_unlock_irqrestore(&port_lock, flags);
87
88         return val;
89 }
90
91 static unsigned short indirect_read16(struct pd6729_socket *socket,
92                                       unsigned short reg)
93 {
94         unsigned long port;
95         unsigned short tmp;
96         unsigned long flags;
97
98         spin_lock_irqsave(&port_lock, flags);
99         reg  = reg + socket->number * 0x40;
100         port = socket->io_base;
101         outb(reg, port);
102         tmp = inb(port + 1);
103         reg++;
104         outb(reg, port);
105         tmp = tmp | (inb(port + 1) << 8);
106         spin_unlock_irqrestore(&port_lock, flags);
107
108         return tmp;
109 }
110
111 static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
112                            unsigned char value)
113 {
114         unsigned long port;
115         unsigned long flags;
116
117         spin_lock_irqsave(&port_lock, flags);
118         reg = reg + socket->number * 0x40;
119         port = socket->io_base;
120         outb(reg, port);
121         outb(value, port + 1);
122         spin_unlock_irqrestore(&port_lock, flags);
123 }
124
125 static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
126                             unsigned char mask)
127 {
128         unsigned long port;
129         unsigned char val;
130         unsigned long flags;
131
132         spin_lock_irqsave(&port_lock, flags);
133         reg = reg + socket->number * 0x40;
134         port = socket->io_base;
135         outb(reg, port);
136         val = inb(port + 1);
137         val |= mask;
138         outb(reg, port);
139         outb(val, port + 1);
140         spin_unlock_irqrestore(&port_lock, flags);
141 }
142
143 static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
144                               unsigned char mask)
145 {
146         unsigned long port;
147         unsigned char val;
148         unsigned long flags;
149
150         spin_lock_irqsave(&port_lock, flags);
151         reg = reg + socket->number * 0x40;
152         port = socket->io_base;
153         outb(reg, port);
154         val = inb(port + 1);
155         val &= ~mask;
156         outb(reg, port);
157         outb(val, port + 1);
158         spin_unlock_irqrestore(&port_lock, flags);
159 }
160
161 static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
162                              unsigned short value)
163 {
164         unsigned long port;
165         unsigned char val;
166         unsigned long flags;
167
168         spin_lock_irqsave(&port_lock, flags);
169         reg = reg + socket->number * 0x40;
170         port = socket->io_base;
171
172         outb(reg, port);
173         val = value & 255;
174         outb(val, port + 1);
175
176         reg++;
177
178         outb(reg, port);
179         val = value >> 8;
180         outb(val, port + 1);
181         spin_unlock_irqrestore(&port_lock, flags);
182 }
183
184 /* Interrupt handler functionality */
185
186 static irqreturn_t pd6729_interrupt(int irq, void *dev, struct pt_regs *regs)
187 {
188         struct pd6729_socket *socket = (struct pd6729_socket *)dev;
189         int i;
190         int loopcount = 0;
191         int handled = 0;
192         unsigned int events, active = 0;
193
194         while (1) {
195                 loopcount++;
196                 if (loopcount > 20) {
197                         printk(KERN_ERR "pd6729: infinite eventloop "
198                                "in interrupt\n");
199                         break;
200                 }
201
202                 active = 0;
203
204                 for (i = 0; i < MAX_SOCKETS; i++) {
205                         unsigned int csc;
206
207                         /* card status change register */
208                         csc = indirect_read(&socket[i], I365_CSC);
209                         if (csc == 0)  /* no events on this socket */
210                                 continue;
211
212                         handled = 1;
213                         events = 0;
214
215                         if (csc & I365_CSC_DETECT) {
216                                 events |= SS_DETECT;
217                                 dprintk("Card detected in socket %i!\n", i);
218                         }
219
220                         if (indirect_read(&socket[i], I365_INTCTL)
221                                                 & I365_PC_IOCARD) {
222                                 /* For IO/CARDS, bit 0 means "read the card" */
223                                 events |= (csc & I365_CSC_STSCHG)
224                                                 ? SS_STSCHG : 0;
225                         } else {
226                                 /* Check for battery/ready events */
227                                 events |= (csc & I365_CSC_BVD1)
228                                                 ? SS_BATDEAD : 0;
229                                 events |= (csc & I365_CSC_BVD2)
230                                                 ? SS_BATWARN : 0;
231                                 events |= (csc & I365_CSC_READY)
232                                                 ? SS_READY : 0;
233                         }
234
235                         if (events) {
236                                 pcmcia_parse_events(&socket[i].socket, events);
237                         }
238                         active |= events;
239                 }
240
241                 if (active == 0) /* no more events to handle */
242                         break;
243         }
244         return IRQ_RETVAL(handled);
245 }
246
247 /* socket functions */
248
249 static void pd6729_interrupt_wrapper(unsigned long data)
250 {
251         struct pd6729_socket *socket = (struct pd6729_socket *) data;
252
253         pd6729_interrupt(0, (void *)socket, NULL);
254         mod_timer(&socket->poll_timer, jiffies + HZ);
255 }
256
257 static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
258 {
259         struct pd6729_socket *socket
260                         = container_of(sock, struct pd6729_socket, socket);
261         unsigned int status;
262         unsigned int data;
263         struct pd6729_socket *t;
264
265         /* Interface Status Register */
266         status = indirect_read(socket, I365_STATUS);
267         *value = 0;
268
269         if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
270                 *value |= SS_DETECT;
271         }
272
273         /*
274          * IO cards have a different meaning of bits 0,1
275          * Also notice the inverse-logic on the bits
276          */
277         if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
278                 /* IO card */
279                 if (!(status & I365_CS_STSCHG))
280                         *value |= SS_STSCHG;
281         } else {
282                 /* non I/O card */
283                 if (!(status & I365_CS_BVD1))
284                         *value |= SS_BATDEAD;
285                 if (!(status & I365_CS_BVD2))
286                         *value |= SS_BATWARN;
287         }
288
289         if (status & I365_CS_WRPROT)
290                 *value |= SS_WRPROT;    /* card is write protected */
291
292         if (status & I365_CS_READY)
293                 *value |= SS_READY;     /* card is not busy */
294
295         if (status & I365_CS_POWERON)
296                 *value |= SS_POWERON;   /* power is applied to the card */
297
298         t = (socket->number) ? socket : socket + 1;
299         indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
300         data = indirect_read16(t, PD67_EXT_DATA);
301         *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
302
303         return 0;
304 }
305
306
307 static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
308 {
309         struct pd6729_socket *socket
310                         = container_of(sock, struct pd6729_socket, socket);
311         unsigned char reg, data;
312
313         /* First, set the global controller options */
314         indirect_write(socket, I365_GBLCTL, 0x00);
315         indirect_write(socket, I365_GENCTL, 0x00);
316
317         /* Values for the IGENC register */
318         socket->card_irq = state->io_irq;
319
320         reg = 0;
321         /* The reset bit has "inverse" logic */
322         if (!(state->flags & SS_RESET))
323                 reg |= I365_PC_RESET;
324         if (state->flags & SS_IOCARD)
325                 reg |= I365_PC_IOCARD;
326
327         /* IGENC, Interrupt and General Control Register */
328         indirect_write(socket, I365_INTCTL, reg);
329
330         /* Power registers */
331
332         reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
333
334         if (state->flags & SS_PWR_AUTO) {
335                 dprintk("Auto power\n");
336                 reg |= I365_PWR_AUTO;   /* automatic power mngmnt */
337         }
338         if (state->flags & SS_OUTPUT_ENA) {
339                 dprintk("Power Enabled\n");
340                 reg |= I365_PWR_OUT;    /* enable power */
341         }
342
343         switch (state->Vcc) {
344         case 0:
345                 break;
346         case 33:
347                 dprintk("setting voltage to Vcc to 3.3V on socket %i\n",
348                         socket->number);
349                 reg |= I365_VCC_5V;
350                 indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
351                 break;
352         case 50:
353                 dprintk("setting voltage to Vcc to 5V on socket %i\n",
354                         socket->number);
355                 reg |= I365_VCC_5V;
356                 indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
357                 break;
358         default:
359                 dprintk("pd6729: pd6729_set_socket called with "
360                                 "invalid VCC power value: %i\n",
361                         state->Vcc);
362                 return -EINVAL;
363         }
364
365         switch (state->Vpp) {
366         case 0:
367                 dprintk("not setting Vpp on socket %i\n", socket->number);
368                 break;
369         case 33:
370         case 50:
371                 dprintk("setting Vpp to Vcc for socket %i\n", socket->number);
372                 reg |= I365_VPP1_5V;
373                 break;
374         case 120:
375                 dprintk("setting Vpp to 12.0\n");
376                 reg |= I365_VPP1_12V;
377                 break;
378         default:
379                 dprintk("pd6729: pd6729_set_socket called with invalid VPP power value: %i\n",
380                         state->Vpp);
381                 return -EINVAL;
382         }
383
384         /* only write if changed */
385         if (reg != indirect_read(socket, I365_POWER))
386                 indirect_write(socket, I365_POWER, reg);
387
388         if (irq_mode == 1) {
389                  /* all interrupts are to be done as PCI interrupts */
390                 data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
391         } else
392                 data = 0;
393
394         indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
395         indirect_write(socket, PD67_EXT_DATA, data);
396
397         /* Enable specific interrupt events */
398
399         reg = 0x00;
400         if (state->csc_mask & SS_DETECT) {
401                 reg |= I365_CSC_DETECT;
402         }
403         if (state->flags & SS_IOCARD) {
404                 if (state->csc_mask & SS_STSCHG)
405                         reg |= I365_CSC_STSCHG;
406         } else {
407                 if (state->csc_mask & SS_BATDEAD)
408                         reg |= I365_CSC_BVD1;
409                 if (state->csc_mask & SS_BATWARN)
410                         reg |= I365_CSC_BVD2;
411                 if (state->csc_mask & SS_READY)
412                         reg |= I365_CSC_READY;
413         }
414         if (irq_mode == 1)
415                 reg |= 0x30;    /* management IRQ: PCI INTA# = "irq 3" */
416         indirect_write(socket, I365_CSCINT, reg);
417
418         reg = indirect_read(socket, I365_INTCTL);
419         if (irq_mode == 1)
420                 reg |= 0x03;    /* card IRQ: PCI INTA# = "irq 3" */
421         else
422                 reg |= socket->card_irq;
423         indirect_write(socket, I365_INTCTL, reg);
424
425         /* now clear the (probably bogus) pending stuff by doing a dummy read */
426         (void)indirect_read(socket, I365_CSC);
427
428         return 0;
429 }
430
431 static int pd6729_set_io_map(struct pcmcia_socket *sock,
432                              struct pccard_io_map *io)
433 {
434         struct pd6729_socket *socket
435                         = container_of(sock, struct pd6729_socket, socket);
436         unsigned char map, ioctl;
437
438         map = io->map;
439
440         /* Check error conditions */
441         if (map > 1) {
442                 dprintk("pd6729_set_io_map with invalid map");
443                 return -EINVAL;
444         }
445
446         /* Turn off the window before changing anything */
447         if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
448                 indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
449
450         /* dprintk("set_io_map: Setting range to %x - %x\n",
451            io->start, io->stop);*/
452
453         /* write the new values */
454         indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
455         indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
456
457         ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
458
459         if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
460         if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
461         if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
462
463         indirect_write(socket, I365_IOCTL, ioctl);
464
465         /* Turn the window back on if needed */
466         if (io->flags & MAP_ACTIVE)
467                 indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
468
469         return 0;
470 }
471
472 static int pd6729_set_mem_map(struct pcmcia_socket *sock,
473                               struct pccard_mem_map *mem)
474 {
475         struct pd6729_socket *socket
476                          = container_of(sock, struct pd6729_socket, socket);
477         unsigned short base, i;
478         unsigned char map;
479
480         map = mem->map;
481         if (map > 4) {
482                 printk("pd6729_set_mem_map: invalid map");
483                 return -EINVAL;
484         }
485
486         if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
487                 printk("pd6729_set_mem_map: invalid address / speed");
488                 return -EINVAL;
489         }
490
491         /* Turn off the window before changing anything */
492         if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
493                 indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
494
495         /* write the start address */
496         base = I365_MEM(map);
497         i = (mem->res->start >> 12) & 0x0fff;
498         if (mem->flags & MAP_16BIT)
499                 i |= I365_MEM_16BIT;
500         if (mem->flags & MAP_0WS)
501                 i |= I365_MEM_0WS;
502         indirect_write16(socket, base + I365_W_START, i);
503
504         /* write the stop address */
505
506         i= (mem->res->end >> 12) & 0x0fff;
507         switch (to_cycles(mem->speed)) {
508         case 0:
509                 break;
510         case 1:
511                 i |= I365_MEM_WS0;
512                 break;
513         case 2:
514                 i |= I365_MEM_WS1;
515                 break;
516         default:
517                 i |= I365_MEM_WS1 | I365_MEM_WS0;
518                 break;
519         }
520
521         indirect_write16(socket, base + I365_W_STOP, i);
522
523         /* Take care of high byte */
524         indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
525         indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
526
527         /* card start */
528
529         i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
530         if (mem->flags & MAP_WRPROT)
531                 i |= I365_MEM_WRPROT;
532         if (mem->flags & MAP_ATTRIB) {
533                 /* dprintk("requesting attribute memory for socket %i\n",
534                         socket->number);*/
535                 i |= I365_MEM_REG;
536         } else {
537                 /* dprintk("requesting normal memory for socket %i\n",
538                         socket->number);*/
539         }
540         indirect_write16(socket, base + I365_W_OFF, i);
541
542         /* Enable the window if necessary */
543         if (mem->flags & MAP_ACTIVE)
544                 indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
545
546         return 0;
547 }
548
549 static int pd6729_init(struct pcmcia_socket *sock)
550 {
551         int i;
552         struct resource res = { .end = 0x0fff };
553         pccard_io_map io = { 0, 0, 0, 0, 1 };
554         pccard_mem_map mem = { .res = &res, };
555
556         pd6729_set_socket(sock, &dead_socket);
557         for (i = 0; i < 2; i++) {
558                 io.map = i;
559                 pd6729_set_io_map(sock, &io);
560         }
561         for (i = 0; i < 5; i++) {
562                 mem.map = i;
563                 pd6729_set_mem_map(sock, &mem);
564         }
565
566         return 0;
567 }
568
569
570 /* the pccard structure and its functions */
571 static struct pccard_operations pd6729_operations = {
572         .init                   = pd6729_init,
573         .get_status             = pd6729_get_status,
574         .set_socket             = pd6729_set_socket,
575         .set_io_map             = pd6729_set_io_map,
576         .set_mem_map            = pd6729_set_mem_map,
577 };
578
579 static irqreturn_t pd6729_test(int irq, void *dev, struct pt_regs *regs)
580 {
581         dprintk("-> hit on irq %d\n", irq);
582         return IRQ_HANDLED;
583 }
584
585 static int pd6729_check_irq(int irq, int flags)
586 {
587         if (request_irq(irq, pd6729_test, flags, "x", pd6729_test) != 0)
588                 return -1;
589         free_irq(irq, pd6729_test);
590         return 0;
591 }
592
593 static u_int __init pd6729_isa_scan(void)
594 {
595         u_int mask0, mask = 0;
596         int i;
597
598         if (irq_mode == 1) {
599                 printk(KERN_INFO "pd6729: PCI card interrupts, "
600                                                 "PCI status changes\n");
601                 return 0;
602         }
603
604         if (irq_list_count == 0)
605                 mask0 = 0xffff;
606         else
607                 for (i = mask0 = 0; i < irq_list_count; i++)
608                         mask0 |= (1<<irq_list[i]);
609
610         mask0 &= PD67_MASK;
611
612         /* just find interrupts that aren't in use */
613         for (i = 0; i < 16; i++)
614                 if ((mask0 & (1 << i)) && (pd6729_check_irq(i, 0) == 0))
615                         mask |= (1 << i);
616
617         printk(KERN_INFO "pd6729: ISA irqs = ");
618         for (i = 0; i < 16; i++)
619                 if (mask & (1<<i))
620                         printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
621
622         if (mask == 0) printk("none!");
623
624         printk("  polling status changes.\n");
625
626         return mask;
627 }
628
629 static int __devinit pd6729_pci_probe(struct pci_dev *dev,
630                                       const struct pci_device_id *id)
631 {
632         int i, j, ret;
633         u_int mask;
634         char configbyte;
635         struct pd6729_socket *socket;
636
637         socket = kmalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
638                          GFP_KERNEL);
639         if (!socket)
640                 return -ENOMEM;
641
642         memset(socket, 0, sizeof(struct pd6729_socket) * MAX_SOCKETS);
643
644         if ((ret = pci_enable_device(dev)))
645                 goto err_out_free_mem;
646
647         printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge "
648                 "at 0x%lx on irq %d\n", pci_resource_start(dev, 0), dev->irq);
649         /*
650          * Since we have no memory BARs some firmware may not
651          * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
652          */
653         pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
654         if (!(configbyte & PCI_COMMAND_MEMORY)) {
655                 printk(KERN_DEBUG "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
656                 configbyte |= PCI_COMMAND_MEMORY;
657                 pci_write_config_byte(dev, PCI_COMMAND, configbyte);
658         }
659
660         ret = pci_request_regions(dev, "pd6729");
661         if (ret) {
662                 printk(KERN_INFO "pd6729: pci request region failed.\n");
663                 goto err_out_disable;
664         }
665
666         if (dev->irq == NO_IRQ)
667                 irq_mode = 0;   /* fall back to ISA interrupt mode */
668
669         mask = pd6729_isa_scan();
670         if (irq_mode == 0 && mask == 0) {
671                 printk(KERN_INFO "pd6729: no ISA interrupt is available.\n");
672                 goto err_out_free_res;
673         }
674
675         for (i = 0; i < MAX_SOCKETS; i++) {
676                 socket[i].io_base = pci_resource_start(dev, 0);
677                 socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
678                 socket[i].socket.map_size = 0x1000;
679                 socket[i].socket.irq_mask = mask;
680                 socket[i].socket.pci_irq  = dev->irq;
681                 socket[i].socket.owner = THIS_MODULE;
682
683                 socket[i].number = i;
684
685                 socket[i].socket.ops = &pd6729_operations;
686                 socket[i].socket.resource_ops = &pccard_nonstatic_ops;
687                 socket[i].socket.dev.dev = &dev->dev;
688                 socket[i].socket.driver_data = &socket[i];
689         }
690
691         pci_set_drvdata(dev, socket);
692         if (irq_mode == 1) {
693                 /* Register the interrupt handler */
694                 if ((ret = request_irq(dev->irq, pd6729_interrupt, SA_SHIRQ,
695                                                         "pd6729", socket))) {
696                         printk(KERN_ERR "pd6729: Failed to register irq %d, "
697                                                         "aborting\n", dev->irq);
698                         goto err_out_free_res;
699                 }
700         } else {
701                 /* poll Card status change */
702                 init_timer(&socket->poll_timer);
703                 socket->poll_timer.function = pd6729_interrupt_wrapper;
704                 socket->poll_timer.data = (unsigned long)socket;
705                 socket->poll_timer.expires = jiffies + HZ;
706                 add_timer(&socket->poll_timer);
707         }
708
709         for (i = 0; i < MAX_SOCKETS; i++) {
710                 ret = pcmcia_register_socket(&socket[i].socket);
711                 if (ret) {
712                         printk(KERN_INFO "pd6729: pcmcia_register_socket "
713                                                "failed.\n");
714                         for (j = 0; j < i ; j++)
715                                 pcmcia_unregister_socket(&socket[j].socket);
716                         goto err_out_free_res2;
717                 }
718         }
719
720         return 0;
721
722  err_out_free_res2:
723         if (irq_mode == 1)
724                 free_irq(dev->irq, socket);
725         else
726                 del_timer_sync(&socket->poll_timer);
727  err_out_free_res:
728         pci_release_regions(dev);
729  err_out_disable:
730         pci_disable_device(dev);
731
732  err_out_free_mem:
733         kfree(socket);
734         return ret;
735 }
736
737 static void __devexit pd6729_pci_remove(struct pci_dev *dev)
738 {
739         int i;
740         struct pd6729_socket *socket = pci_get_drvdata(dev);
741
742         for (i = 0; i < MAX_SOCKETS; i++) {
743                 /* Turn off all interrupt sources */
744                 indirect_write(&socket[i], I365_CSCINT, 0);
745                 indirect_write(&socket[i], I365_INTCTL, 0);
746
747                 pcmcia_unregister_socket(&socket[i].socket);
748         }
749
750         if (irq_mode == 1)
751                 free_irq(dev->irq, socket);
752         else
753                 del_timer_sync(&socket->poll_timer);
754         pci_release_regions(dev);
755         pci_disable_device(dev);
756
757         kfree(socket);
758 }
759
760 static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
761 {
762         return pcmcia_socket_dev_suspend(&dev->dev, state);
763 }
764
765 static int pd6729_socket_resume(struct pci_dev *dev)
766 {
767         return pcmcia_socket_dev_resume(&dev->dev);
768 }
769
770 static struct pci_device_id pd6729_pci_ids[] = {
771         {
772                 .vendor         = PCI_VENDOR_ID_CIRRUS,
773                 .device         = PCI_DEVICE_ID_CIRRUS_6729,
774                 .subvendor      = PCI_ANY_ID,
775                 .subdevice      = PCI_ANY_ID,
776         },
777         { }
778 };
779 MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
780
781 static struct pci_driver pd6729_pci_drv = {
782         .name           = "pd6729",
783         .id_table       = pd6729_pci_ids,
784         .probe          = pd6729_pci_probe,
785         .remove         = __devexit_p(pd6729_pci_remove),
786         .suspend        = pd6729_socket_suspend,
787         .resume         = pd6729_socket_resume,
788 };
789
790 static int pd6729_module_init(void)
791 {
792         return pci_register_driver(&pd6729_pci_drv);
793 }
794
795 static void pd6729_module_exit(void)
796 {
797         pci_unregister_driver(&pd6729_pci_drv);
798 }
799
800 module_init(pd6729_module_init);
801 module_exit(pd6729_module_exit);