pcmcia: remove obsolete ioctl
[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/slab.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 #include <linux/io.h>
19
20 #include <pcmcia/cs_types.h>
21 #include <pcmcia/ss.h>
22 #include <pcmcia/cs.h>
23
24 #include <asm/system.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
54 static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
55
56 module_param(irq_mode, int, 0444);
57 MODULE_PARM_DESC(irq_mode,
58                 "interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
59
60 static DEFINE_SPINLOCK(port_lock);
61
62 /* basic value read/write functions */
63
64 static unsigned char indirect_read(struct pd6729_socket *socket,
65                                    unsigned short reg)
66 {
67         unsigned long port;
68         unsigned char val;
69         unsigned long flags;
70
71         spin_lock_irqsave(&port_lock, flags);
72         reg += socket->number * 0x40;
73         port = socket->io_base;
74         outb(reg, port);
75         val = inb(port + 1);
76         spin_unlock_irqrestore(&port_lock, flags);
77
78         return val;
79 }
80
81 static unsigned short indirect_read16(struct pd6729_socket *socket,
82                                       unsigned short reg)
83 {
84         unsigned long port;
85         unsigned short tmp;
86         unsigned long flags;
87
88         spin_lock_irqsave(&port_lock, flags);
89         reg  = reg + socket->number * 0x40;
90         port = socket->io_base;
91         outb(reg, port);
92         tmp = inb(port + 1);
93         reg++;
94         outb(reg, port);
95         tmp = tmp | (inb(port + 1) << 8);
96         spin_unlock_irqrestore(&port_lock, flags);
97
98         return tmp;
99 }
100
101 static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
102                            unsigned char value)
103 {
104         unsigned long port;
105         unsigned long flags;
106
107         spin_lock_irqsave(&port_lock, flags);
108         reg = reg + socket->number * 0x40;
109         port = socket->io_base;
110         outb(reg, port);
111         outb(value, port + 1);
112         spin_unlock_irqrestore(&port_lock, flags);
113 }
114
115 static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
116                             unsigned char mask)
117 {
118         unsigned long port;
119         unsigned char val;
120         unsigned long flags;
121
122         spin_lock_irqsave(&port_lock, flags);
123         reg = reg + socket->number * 0x40;
124         port = socket->io_base;
125         outb(reg, port);
126         val = inb(port + 1);
127         val |= mask;
128         outb(reg, port);
129         outb(val, port + 1);
130         spin_unlock_irqrestore(&port_lock, flags);
131 }
132
133 static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
134                               unsigned char mask)
135 {
136         unsigned long port;
137         unsigned char val;
138         unsigned long flags;
139
140         spin_lock_irqsave(&port_lock, flags);
141         reg = reg + socket->number * 0x40;
142         port = socket->io_base;
143         outb(reg, port);
144         val = inb(port + 1);
145         val &= ~mask;
146         outb(reg, port);
147         outb(val, port + 1);
148         spin_unlock_irqrestore(&port_lock, flags);
149 }
150
151 static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
152                              unsigned short value)
153 {
154         unsigned long port;
155         unsigned char val;
156         unsigned long flags;
157
158         spin_lock_irqsave(&port_lock, flags);
159         reg = reg + socket->number * 0x40;
160         port = socket->io_base;
161
162         outb(reg, port);
163         val = value & 255;
164         outb(val, port + 1);
165
166         reg++;
167
168         outb(reg, port);
169         val = value >> 8;
170         outb(val, port + 1);
171         spin_unlock_irqrestore(&port_lock, flags);
172 }
173
174 /* Interrupt handler functionality */
175
176 static irqreturn_t pd6729_interrupt(int irq, void *dev)
177 {
178         struct pd6729_socket *socket = (struct pd6729_socket *)dev;
179         int i;
180         int loopcount = 0;
181         int handled = 0;
182         unsigned int events, active = 0;
183
184         while (1) {
185                 loopcount++;
186                 if (loopcount > 20) {
187                         printk(KERN_ERR "pd6729: infinite eventloop "
188                                "in interrupt\n");
189                         break;
190                 }
191
192                 active = 0;
193
194                 for (i = 0; i < MAX_SOCKETS; i++) {
195                         unsigned int csc;
196
197                         /* card status change register */
198                         csc = indirect_read(&socket[i], I365_CSC);
199                         if (csc == 0)  /* no events on this socket */
200                                 continue;
201
202                         handled = 1;
203                         events = 0;
204
205                         if (csc & I365_CSC_DETECT) {
206                                 events |= SS_DETECT;
207                                 dev_vdbg(&socket[i].socket.dev,
208                                         "Card detected in socket %i!\n", i);
209                         }
210
211                         if (indirect_read(&socket[i], I365_INTCTL)
212                                                 & I365_PC_IOCARD) {
213                                 /* For IO/CARDS, bit 0 means "read the card" */
214                                 events |= (csc & I365_CSC_STSCHG)
215                                                 ? SS_STSCHG : 0;
216                         } else {
217                                 /* Check for battery/ready events */
218                                 events |= (csc & I365_CSC_BVD1)
219                                                 ? SS_BATDEAD : 0;
220                                 events |= (csc & I365_CSC_BVD2)
221                                                 ? SS_BATWARN : 0;
222                                 events |= (csc & I365_CSC_READY)
223                                                 ? SS_READY : 0;
224                         }
225
226                         if (events)
227                                 pcmcia_parse_events(&socket[i].socket, events);
228
229                         active |= events;
230                 }
231
232                 if (active == 0) /* no more events to handle */
233                         break;
234         }
235         return IRQ_RETVAL(handled);
236 }
237
238 /* socket functions */
239
240 static void pd6729_interrupt_wrapper(unsigned long data)
241 {
242         struct pd6729_socket *socket = (struct pd6729_socket *) data;
243
244         pd6729_interrupt(0, (void *)socket);
245         mod_timer(&socket->poll_timer, jiffies + HZ);
246 }
247
248 static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
249 {
250         struct pd6729_socket *socket
251                         = container_of(sock, struct pd6729_socket, socket);
252         unsigned int status;
253         unsigned int data;
254         struct pd6729_socket *t;
255
256         /* Interface Status Register */
257         status = indirect_read(socket, I365_STATUS);
258         *value = 0;
259
260         if ((status & I365_CS_DETECT) == I365_CS_DETECT)
261                 *value |= SS_DETECT;
262
263         /*
264          * IO cards have a different meaning of bits 0,1
265          * Also notice the inverse-logic on the bits
266          */
267         if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
268                 /* IO card */
269                 if (!(status & I365_CS_STSCHG))
270                         *value |= SS_STSCHG;
271         } else {
272                 /* non I/O card */
273                 if (!(status & I365_CS_BVD1))
274                         *value |= SS_BATDEAD;
275                 if (!(status & I365_CS_BVD2))
276                         *value |= SS_BATWARN;
277         }
278
279         if (status & I365_CS_WRPROT)
280                 *value |= SS_WRPROT;    /* card is write protected */
281
282         if (status & I365_CS_READY)
283                 *value |= SS_READY;     /* card is not busy */
284
285         if (status & I365_CS_POWERON)
286                 *value |= SS_POWERON;   /* power is applied to the card */
287
288         t = (socket->number) ? socket : socket + 1;
289         indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
290         data = indirect_read16(t, PD67_EXT_DATA);
291         *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
292
293         return 0;
294 }
295
296
297 static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
298 {
299         struct pd6729_socket *socket
300                         = container_of(sock, struct pd6729_socket, socket);
301         unsigned char reg, data;
302
303         /* First, set the global controller options */
304         indirect_write(socket, I365_GBLCTL, 0x00);
305         indirect_write(socket, I365_GENCTL, 0x00);
306
307         /* Values for the IGENC register */
308         socket->card_irq = state->io_irq;
309
310         reg = 0;
311         /* The reset bit has "inverse" logic */
312         if (!(state->flags & SS_RESET))
313                 reg |= I365_PC_RESET;
314         if (state->flags & SS_IOCARD)
315                 reg |= I365_PC_IOCARD;
316
317         /* IGENC, Interrupt and General Control Register */
318         indirect_write(socket, I365_INTCTL, reg);
319
320         /* Power registers */
321
322         reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
323
324         if (state->flags & SS_PWR_AUTO) {
325                 dev_dbg(&sock->dev, "Auto power\n");
326                 reg |= I365_PWR_AUTO;   /* automatic power mngmnt */
327         }
328         if (state->flags & SS_OUTPUT_ENA) {
329                 dev_dbg(&sock->dev, "Power Enabled\n");
330                 reg |= I365_PWR_OUT;    /* enable power */
331         }
332
333         switch (state->Vcc) {
334         case 0:
335                 break;
336         case 33:
337                 dev_dbg(&sock->dev,
338                         "setting voltage to Vcc to 3.3V on socket %i\n",
339                         socket->number);
340                 reg |= I365_VCC_5V;
341                 indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
342                 break;
343         case 50:
344                 dev_dbg(&sock->dev,
345                         "setting voltage to Vcc to 5V on socket %i\n",
346                         socket->number);
347                 reg |= I365_VCC_5V;
348                 indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
349                 break;
350         default:
351                 dev_dbg(&sock->dev,
352                         "pd6729_set_socket called with invalid VCC power "
353                         "value: %i\n", state->Vcc);
354                 return -EINVAL;
355         }
356
357         switch (state->Vpp) {
358         case 0:
359                 dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
360                         socket->number);
361                 break;
362         case 33:
363         case 50:
364                 dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
365                         socket->number);
366                 reg |= I365_VPP1_5V;
367                 break;
368         case 120:
369                 dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
370                 reg |= I365_VPP1_12V;
371                 break;
372         default:
373                 dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
374                         "invalid VPP power value: %i\n", state->Vpp);
375                 return -EINVAL;
376         }
377
378         /* only write if changed */
379         if (reg != indirect_read(socket, I365_POWER))
380                 indirect_write(socket, I365_POWER, reg);
381
382         if (irq_mode == 1) {
383                 /* all interrupts are to be done as PCI interrupts */
384                 data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
385         } else
386                 data = 0;
387
388         indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
389         indirect_write(socket, PD67_EXT_DATA, data);
390
391         /* Enable specific interrupt events */
392
393         reg = 0x00;
394         if (state->csc_mask & SS_DETECT)
395                 reg |= I365_CSC_DETECT;
396
397         if (state->flags & SS_IOCARD) {
398                 if (state->csc_mask & SS_STSCHG)
399                         reg |= I365_CSC_STSCHG;
400         } else {
401                 if (state->csc_mask & SS_BATDEAD)
402                         reg |= I365_CSC_BVD1;
403                 if (state->csc_mask & SS_BATWARN)
404                         reg |= I365_CSC_BVD2;
405                 if (state->csc_mask & SS_READY)
406                         reg |= I365_CSC_READY;
407         }
408         if (irq_mode == 1)
409                 reg |= 0x30;    /* management IRQ: PCI INTA# = "irq 3" */
410         indirect_write(socket, I365_CSCINT, reg);
411
412         reg = indirect_read(socket, I365_INTCTL);
413         if (irq_mode == 1)
414                 reg |= 0x03;    /* card IRQ: PCI INTA# = "irq 3" */
415         else
416                 reg |= socket->card_irq;
417         indirect_write(socket, I365_INTCTL, reg);
418
419         /* now clear the (probably bogus) pending stuff by doing a dummy read */
420         (void)indirect_read(socket, I365_CSC);
421
422         return 0;
423 }
424
425 static int pd6729_set_io_map(struct pcmcia_socket *sock,
426                              struct pccard_io_map *io)
427 {
428         struct pd6729_socket *socket
429                         = container_of(sock, struct pd6729_socket, socket);
430         unsigned char map, ioctl;
431
432         map = io->map;
433
434         /* Check error conditions */
435         if (map > 1) {
436                 dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
437                 return -EINVAL;
438         }
439
440         /* Turn off the window before changing anything */
441         if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
442                 indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
443
444         /* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
445            io->start, io->stop);*/
446
447         /* write the new values */
448         indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
449         indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
450
451         ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
452
453         if (io->flags & MAP_0WS)
454                 ioctl |= I365_IOCTL_0WS(map);
455         if (io->flags & MAP_16BIT)
456                 ioctl |= I365_IOCTL_16BIT(map);
457         if (io->flags & MAP_AUTOSZ)
458                 ioctl |= I365_IOCTL_IOCS16(map);
459
460         indirect_write(socket, I365_IOCTL, ioctl);
461
462         /* Turn the window back on if needed */
463         if (io->flags & MAP_ACTIVE)
464                 indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
465
466         return 0;
467 }
468
469 static int pd6729_set_mem_map(struct pcmcia_socket *sock,
470                               struct pccard_mem_map *mem)
471 {
472         struct pd6729_socket *socket
473                          = container_of(sock, struct pd6729_socket, socket);
474         unsigned short base, i;
475         unsigned char map;
476
477         map = mem->map;
478         if (map > 4) {
479                 dev_warn(&sock->dev, "invalid map requested\n");
480                 return -EINVAL;
481         }
482
483         if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
484                 dev_warn(&sock->dev, "invalid invalid address / speed\n");
485                 return -EINVAL;
486         }
487
488         /* Turn off the window before changing anything */
489         if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
490                 indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
491
492         /* write the start address */
493         base = I365_MEM(map);
494         i = (mem->res->start >> 12) & 0x0fff;
495         if (mem->flags & MAP_16BIT)
496                 i |= I365_MEM_16BIT;
497         if (mem->flags & MAP_0WS)
498                 i |= I365_MEM_0WS;
499         indirect_write16(socket, base + I365_W_START, i);
500
501         /* write the stop address */
502
503         i = (mem->res->end >> 12) & 0x0fff;
504         switch (to_cycles(mem->speed)) {
505         case 0:
506                 break;
507         case 1:
508                 i |= I365_MEM_WS0;
509                 break;
510         case 2:
511                 i |= I365_MEM_WS1;
512                 break;
513         default:
514                 i |= I365_MEM_WS1 | I365_MEM_WS0;
515                 break;
516         }
517
518         indirect_write16(socket, base + I365_W_STOP, i);
519
520         /* Take care of high byte */
521         indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
522         indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
523
524         /* card start */
525
526         i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
527         if (mem->flags & MAP_WRPROT)
528                 i |= I365_MEM_WRPROT;
529         if (mem->flags & MAP_ATTRIB) {
530                 /* dev_dbg(&sock->dev, "requesting attribute memory for "
531                    "socket %i\n", socket->number);*/
532                 i |= I365_MEM_REG;
533         } else {
534                 /* dev_dbg(&sock->dev, "requesting normal memory for "
535                    "socket %i\n", socket->number);*/
536         }
537         indirect_write16(socket, base + I365_W_OFF, i);
538
539         /* Enable the window if necessary */
540         if (mem->flags & MAP_ACTIVE)
541                 indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
542
543         return 0;
544 }
545
546 static int pd6729_init(struct pcmcia_socket *sock)
547 {
548         int i;
549         struct resource res = { .end = 0x0fff };
550         pccard_io_map io = { 0, 0, 0, 0, 1 };
551         pccard_mem_map mem = { .res = &res, };
552
553         pd6729_set_socket(sock, &dead_socket);
554         for (i = 0; i < 2; i++) {
555                 io.map = i;
556                 pd6729_set_io_map(sock, &io);
557         }
558         for (i = 0; i < 5; i++) {
559                 mem.map = i;
560                 pd6729_set_mem_map(sock, &mem);
561         }
562
563         return 0;
564 }
565
566
567 /* the pccard structure and its functions */
568 static struct pccard_operations pd6729_operations = {
569         .init                   = pd6729_init,
570         .get_status             = pd6729_get_status,
571         .set_socket             = pd6729_set_socket,
572         .set_io_map             = pd6729_set_io_map,
573         .set_mem_map            = pd6729_set_mem_map,
574 };
575
576 static irqreturn_t pd6729_test(int irq, void *dev)
577 {
578         pr_devel("-> hit on irq %d\n", irq);
579         return IRQ_HANDLED;
580 }
581
582 static int pd6729_check_irq(int irq)
583 {
584         int ret;
585
586         ret = request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x",
587                           pd6729_test);
588         if (ret)
589                 return -1;
590
591         free_irq(irq, pd6729_test);
592         return 0;
593 }
594
595 static u_int __devinit pd6729_isa_scan(void)
596 {
597         u_int mask0, mask = 0;
598         int i;
599
600         if (irq_mode == 1) {
601                 printk(KERN_INFO "pd6729: PCI card interrupts, "
602                        "PCI status changes\n");
603                 return 0;
604         }
605
606         mask0 = PD67_MASK;
607
608         /* just find interrupts that aren't in use */
609         for (i = 0; i < 16; i++)
610                 if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
611                         mask |= (1 << i);
612
613         printk(KERN_INFO "pd6729: ISA irqs = ");
614         for (i = 0; i < 16; i++)
615                 if (mask & (1<<i))
616                         printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
617
618         if (mask == 0)
619                 printk("none!");
620         else
621                 printk("  polling status changes.\n");
622
623         return mask;
624 }
625
626 static int __devinit pd6729_pci_probe(struct pci_dev *dev,
627                                       const struct pci_device_id *id)
628 {
629         int i, j, ret;
630         u_int mask;
631         char configbyte;
632         struct pd6729_socket *socket;
633
634         socket = kzalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
635                          GFP_KERNEL);
636         if (!socket) {
637                 dev_warn(&dev->dev, "failed to kzalloc socket.\n");
638                 return -ENOMEM;
639         }
640
641         ret = pci_enable_device(dev);
642         if (ret) {
643                 dev_warn(&dev->dev, "failed to enable pci_device.\n");
644                 goto err_out_free_mem;
645         }
646
647         if (!pci_resource_start(dev, 0)) {
648                 dev_warn(&dev->dev, "refusing to load the driver as the "
649                         "io_base is NULL.\n");
650                 goto err_out_free_mem;
651         }
652
653         dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
654                 "on irq %d\n",
655                 (unsigned long long)pci_resource_start(dev, 0), dev->irq);
656         /*
657          * Since we have no memory BARs some firmware may not
658          * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
659          */
660         pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
661         if (!(configbyte & PCI_COMMAND_MEMORY)) {
662                 dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
663                 configbyte |= PCI_COMMAND_MEMORY;
664                 pci_write_config_byte(dev, PCI_COMMAND, configbyte);
665         }
666
667         ret = pci_request_regions(dev, "pd6729");
668         if (ret) {
669                 dev_warn(&dev->dev, "pci request region failed.\n");
670                 goto err_out_disable;
671         }
672
673         if (dev->irq == NO_IRQ)
674                 irq_mode = 0;   /* fall back to ISA interrupt mode */
675
676         mask = pd6729_isa_scan();
677         if (irq_mode == 0 && mask == 0) {
678                 dev_warn(&dev->dev, "no ISA interrupt is available.\n");
679                 goto err_out_free_res;
680         }
681
682         for (i = 0; i < MAX_SOCKETS; i++) {
683                 socket[i].io_base = pci_resource_start(dev, 0);
684                 socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
685                 socket[i].socket.map_size = 0x1000;
686                 socket[i].socket.irq_mask = mask;
687                 socket[i].socket.pci_irq  = dev->irq;
688                 socket[i].socket.cb_dev = dev;
689                 socket[i].socket.owner = THIS_MODULE;
690
691                 socket[i].number = i;
692
693                 socket[i].socket.ops = &pd6729_operations;
694                 socket[i].socket.resource_ops = &pccard_nonstatic_ops;
695                 socket[i].socket.dev.parent = &dev->dev;
696                 socket[i].socket.driver_data = &socket[i];
697         }
698
699         pci_set_drvdata(dev, socket);
700         if (irq_mode == 1) {
701                 /* Register the interrupt handler */
702                 ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
703                                   "pd6729", socket);
704                 if (ret) {
705                         dev_err(&dev->dev, "Failed to register irq %d\n",
706                                 dev->irq);
707                         goto err_out_free_res;
708                 }
709         } else {
710                 /* poll Card status change */
711                 init_timer(&socket->poll_timer);
712                 socket->poll_timer.function = pd6729_interrupt_wrapper;
713                 socket->poll_timer.data = (unsigned long)socket;
714                 socket->poll_timer.expires = jiffies + HZ;
715                 add_timer(&socket->poll_timer);
716         }
717
718         for (i = 0; i < MAX_SOCKETS; i++) {
719                 ret = pcmcia_register_socket(&socket[i].socket);
720                 if (ret) {
721                         dev_warn(&dev->dev, "pcmcia_register_socket failed.\n");
722                         for (j = 0; j < i ; j++)
723                                 pcmcia_unregister_socket(&socket[j].socket);
724                         goto err_out_free_res2;
725                 }
726         }
727
728         return 0;
729
730  err_out_free_res2:
731         if (irq_mode == 1)
732                 free_irq(dev->irq, socket);
733         else
734                 del_timer_sync(&socket->poll_timer);
735  err_out_free_res:
736         pci_release_regions(dev);
737  err_out_disable:
738         pci_disable_device(dev);
739
740  err_out_free_mem:
741         kfree(socket);
742         return ret;
743 }
744
745 static void __devexit pd6729_pci_remove(struct pci_dev *dev)
746 {
747         int i;
748         struct pd6729_socket *socket = pci_get_drvdata(dev);
749
750         for (i = 0; i < MAX_SOCKETS; i++) {
751                 /* Turn off all interrupt sources */
752                 indirect_write(&socket[i], I365_CSCINT, 0);
753                 indirect_write(&socket[i], I365_INTCTL, 0);
754
755                 pcmcia_unregister_socket(&socket[i].socket);
756         }
757
758         if (irq_mode == 1)
759                 free_irq(dev->irq, socket);
760         else
761                 del_timer_sync(&socket->poll_timer);
762         pci_release_regions(dev);
763         pci_disable_device(dev);
764
765         kfree(socket);
766 }
767
768 static struct pci_device_id pd6729_pci_ids[] = {
769         {
770                 .vendor         = PCI_VENDOR_ID_CIRRUS,
771                 .device         = PCI_DEVICE_ID_CIRRUS_6729,
772                 .subvendor      = PCI_ANY_ID,
773                 .subdevice      = PCI_ANY_ID,
774         },
775         { }
776 };
777 MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
778
779 static struct pci_driver pd6729_pci_driver = {
780         .name           = "pd6729",
781         .id_table       = pd6729_pci_ids,
782         .probe          = pd6729_pci_probe,
783         .remove         = __devexit_p(pd6729_pci_remove),
784 };
785
786 static int pd6729_module_init(void)
787 {
788         return pci_register_driver(&pd6729_pci_driver);
789 }
790
791 static void pd6729_module_exit(void)
792 {
793         pci_unregister_driver(&pd6729_pci_driver);
794 }
795
796 module_init(pd6729_module_init);
797 module_exit(pd6729_module_exit);