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