aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pcmcia/pd6729.c
blob: a70f97fdbbdd3085401d90402ce5602f4622ec03 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
/*
 * Driver for the Cirrus PD6729 PCI-PCMCIA bridge.
 *
 * Based on the i82092.c driver.
 *
 * This software may be used and distributed according to the terms of
 * the GNU General Public License, incorporated herein by reference.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/device.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/ss.h>
#include <pcmcia/cs.h>

#include <asm/system.h>
#include <asm/io.h>

#include "pd6729.h"
#include "i82365.h"
#include "cirrus.h"

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");

#define MAX_SOCKETS 2

/*
 * simple helper functions
 * External clock time, in nanoseconds.  120 ns = 8.33 MHz
 */
#define to_cycles(ns)	((ns)/120)

#ifndef NO_IRQ
#define NO_IRQ	((unsigned int)(0))
#endif

/*
 * PARAMETERS
 *  irq_mode=n
 *     Specifies the interrupt delivery mode.  The default (1) is to use PCI
 *     interrupts; a value of 0 selects ISA interrupts. This must be set for
 *     correct operation of PCI card readers.
 *
 *  irq_list=i,j,...
 *     This list limits the set of interrupts that can be used by PCMCIA
 *     cards.
 *     The default list is 3,4,5,7,9,10,11.
 *     (irq_list parameter is not used, if irq_mode = 1)
 */

static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
static int irq_list[16];
static int irq_list_count = 0;

module_param(irq_mode, int, 0444);
module_param_array(irq_list, int, &irq_list_count, 0444);
MODULE_PARM_DESC(irq_mode,
		"interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards");

static DEFINE_SPINLOCK(port_lock);

/* basic value read/write functions */

static unsigned char indirect_read(struct pd6729_socket *socket,
				   unsigned short reg)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg += socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	val = inb(port + 1);
	spin_unlock_irqrestore(&port_lock, flags);

	return val;
}

static unsigned short indirect_read16(struct pd6729_socket *socket,
				      unsigned short reg)
{
	unsigned long port;
	unsigned short tmp;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg  = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	tmp = inb(port + 1);
	reg++;
	outb(reg, port);
	tmp = tmp | (inb(port + 1) << 8);
	spin_unlock_irqrestore(&port_lock, flags);

	return tmp;
}

static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
			   unsigned char value)
{
	unsigned long port;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	outb(value, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
			    unsigned char mask)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	val = inb(port + 1);
	val |= mask;
	outb(reg, port);
	outb(val, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
			      unsigned char mask)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;
	outb(reg, port);
	val = inb(port + 1);
	val &= ~mask;
	outb(reg, port);
	outb(val, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
			     unsigned short value)
{
	unsigned long port;
	unsigned char val;
	unsigned long flags;

	spin_lock_irqsave(&port_lock, flags);
	reg = reg + socket->number * 0x40;
	port = socket->io_base;

	outb(reg, port);
	val = value & 255;
	outb(val, port + 1);

	reg++;

	outb(reg, port);
	val = value >> 8;
	outb(val, port + 1);
	spin_unlock_irqrestore(&port_lock, flags);
}

/* Interrupt handler functionality */

static irqreturn_t pd6729_interrupt(int irq, void *dev)
{
	struct pd6729_socket *socket = (struct pd6729_socket *)dev;
	int i;
	int loopcount = 0;
	int handled = 0;
	unsigned int events, active = 0;

	while (1) {
		loopcount++;
		if (loopcount > 20) {
			printk(KERN_ERR "pd6729: infinite eventloop "
			       "in interrupt\n");
			break;
		}

		active = 0;

		for (i = 0; i < MAX_SOCKETS; i++) {
			unsigned int csc;

			/* card status change register */
			csc = indirect_read(&socket[i], I365_CSC);
			if (csc == 0)  /* no events on this socket */
				continue;

			handled = 1;
			events = 0;

			if (csc & I365_CSC_DETECT) {
				events |= SS_DETECT;
				dprintk("Card detected in socket %i!\n", i);
			}

			if (indirect_read(&socket[i], I365_INTCTL)
						& I365_PC_IOCARD) {
				/* For IO/CARDS, bit 0 means "read the card" */
				events |= (csc & I365_CSC_STSCHG)
						? SS_STSCHG : 0;
			} else {
				/* Check for battery/ready events */
				events |= (csc & I365_CSC_BVD1)
						? SS_BATDEAD : 0;
				events |= (csc & I365_CSC_BVD2)
						? SS_BATWARN : 0;
				events |= (csc & I365_CSC_READY)
						? SS_READY : 0;
			}

			if (events) {
				pcmcia_parse_events(&socket[i].socket, events);
			}
			active |= events;
		}

		if (active == 0) /* no more events to handle */
			break;
	}
	return IRQ_RETVAL(handled);
}

/* socket functions */

static void pd6729_interrupt_wrapper(unsigned long data)
{
	struct pd6729_socket *socket = (struct pd6729_socket *) data;

	pd6729_interrupt(0, (void *)socket);
	mod_timer(&socket->poll_timer, jiffies + HZ);
}

static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
{
	struct pd6729_socket *socket
			= container_of(sock, struct pd6729_socket, socket);
	unsigned int status;
	unsigned int data;
	struct pd6729_socket *t;

	/* Interface Status Register */
	status = indirect_read(socket, I365_STATUS);
	*value = 0;

	if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
		*value |= SS_DETECT;
	}

	/*
	 * IO cards have a different meaning of bits 0,1
	 * Also notice the inverse-logic on the bits
	 */
	if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
		/* IO card */
		if (!(status & I365_CS_STSCHG))
			*value |= SS_STSCHG;
	} else {
		/* non I/O card */
		if (!(status & I365_CS_BVD1))
			*value |= SS_BATDEAD;
		if (!(status & I365_CS_BVD2))
			*value |= SS_BATWARN;
	}

	if (status & I365_CS_WRPROT)
		*value |= SS_WRPROT;	/* card is write protected */

	if (status & I365_CS_READY)
		*value |= SS_READY;	/* card is not busy */

	if (status & I365_CS_POWERON)
		*value |= SS_POWERON;	/* power is applied to the card */

	t = (socket->number) ? socket : socket + 1;
	indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
	data = indirect_read16(t, PD67_EXT_DATA);
	*value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;

	return 0;
}


static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
{
	struct pd6729_socket *socket
			= container_of(sock, struct pd6729_socket, socket);
	unsigned char reg, data;

	/* First, set the global controller options */
	indirect_write(socket, I365_GBLCTL, 0x00);
	indirect_write(socket, I365_GENCTL, 0x00);

	/* Values for the IGENC register */
	socket->card_irq = state->io_irq;

	reg = 0;
 	/* The reset bit has "inverse" logic */
	if (!(state->flags & SS_RESET))
		reg |= I365_PC_RESET;
	if (state->flags & SS_IOCARD)
		reg |= I365_PC_IOCARD;

	/* IGENC, Interrupt and General Control Register */
	indirect_write(socket, I365_INTCTL, reg);

	/* Power registers */

	reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */

	if (state->flags & SS_PWR_AUTO) {
		dprintk("Auto power\n");
		reg |= I365_PWR_AUTO;	/* automatic power mngmnt */
	}
	if (state->flags & SS_OUTPUT_ENA) {
		dprintk("Power Enabled\n");
		reg |= I365_PWR_OUT;	/* enable power */
	}

	switch (state->Vcc) {
	case 0:
		break;
	case 33:
		dprintk("setting voltage to Vcc to 3.3V on socket %i\n",
			socket->number);
		reg |= I365_VCC_5V;
		indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
		break;
	case 50:
		dprintk("setting voltage to Vcc to 5V on socket %i\n",
			socket->number);
		reg |= I365_VCC_5V;
		indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
		break;
	default:
		dprintk("pd6729: pd6729_set_socket called with "
				"invalid VCC power value: %i\n",
			state->Vcc);
		return -EINVAL;
	}

	switch (state->Vpp) {
	case 0:
		dprintk("not setting Vpp on socket %i\n", socket->number);
		break;
	case 33:
	case 50:
		dprintk("setting Vpp to Vcc for socket %i\n", socket->number);
		reg |= I365_VPP1_5V;
		break;
	case 120:
		dprintk("setting Vpp to 12.0\n");
		reg |= I365_VPP1_12V;
		break;
	default:
		dprintk("pd6729: pd6729_set_socket called with invalid VPP power value: %i\n",
			state->Vpp);
		return -EINVAL;
	}

	/* only write if changed */
	if (reg != indirect_read(socket, I365_POWER))
		indirect_write(socket, I365_POWER, reg);

	if (irq_mode == 1) {
		 /* all interrupts are to be done as PCI interrupts */
		data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
	} else
		data = 0;

	indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
	indirect_write(socket, PD67_EXT_DATA, data);

	/* Enable specific interrupt events */

	reg = 0x00;
	if (state->csc_mask & SS_DETECT) {
		reg |= I365_CSC_DETECT;
	}
	if (state->flags & SS_IOCARD) {
		if (state->csc_mask & SS_STSCHG)
			reg |= I365_CSC_STSCHG;
	} else {
		if (state->csc_mask & SS_BATDEAD)
			reg |= I365_CSC_BVD1;
		if (state->csc_mask & SS_BATWARN)
			reg |= I365_CSC_BVD2;
		if (state->csc_mask & SS_READY)
			reg |= I365_CSC_READY;
	}
	if (irq_mode == 1)
		reg |= 0x30;	/* management IRQ: PCI INTA# = "irq 3" */
	indirect_write(socket, I365_CSCINT, reg);

	reg = indirect_read(socket, I365_INTCTL);
	if (irq_mode == 1)
		reg |= 0x03;	/* card IRQ: PCI INTA# = "irq 3" */
	else
		reg |= socket->card_irq;
	indirect_write(socket, I365_INTCTL, reg);

	/* now clear the (probably bogus) pending stuff by doing a dummy read */
	(void)indirect_read(socket, I365_CSC);

	return 0;
}

static int pd6729_set_io_map(struct pcmcia_socket *sock,
			     struct pccard_io_map *io)
{
	struct pd6729_socket *socket
			= container_of(sock, struct pd6729_socket, socket);
	unsigned char map, ioctl;

	map = io->map;

	/* Check error conditions */
	if (map > 1) {
		dprintk("pd6729_set_io_map with invalid map");
		return -EINVAL;
	}

	/* Turn off the window before changing anything */
	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));

	/* dprintk("set_io_map: Setting range to %x - %x\n",
	   io->start, io->stop);*/

	/* write the new values */
	indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
	indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);

	ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);

	if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
	if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
	if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);

	indirect_write(socket, I365_IOCTL, ioctl);

	/* Turn the window back on if needed */
	if (io->flags & MAP_ACTIVE)
		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));

	return 0;
}

static int pd6729_set_mem_map(struct pcmcia_socket *sock,
			      struct pccard_mem_map *mem)
{
	struct pd6729_socket *socket
			 = container_of(sock, struct pd6729_socket, socket);
	unsigned short base, i;
	unsigned char map;

	map = mem->map;
	if (map > 4) {
		printk("pd6729_set_mem_map: invalid map");
		return -EINVAL;
	}

	if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
		printk("pd6729_set_mem_map: invalid address / speed");
		return -EINVAL;
	}

	/* Turn off the window before changing anything */
	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));

	/* write the start address */
	base = I365_MEM(map);
	i = (mem->res->start >> 12) & 0x0fff;
	if (mem->flags & MAP_16BIT)
		i |= I365_MEM_16BIT;
	if (mem->flags & MAP_0WS)
		i |= I365_MEM_0WS;
	indirect_write16(socket, base + I365_W_START, i);

	/* write the stop address */

	i= (mem->res->end >> 12) & 0x0fff;
	switch (to_cycles(mem->speed)) {
	case 0:
		break;
	case 1:
		i |= I365_MEM_WS0;
		break;
	case 2:
		i |= I365_MEM_WS1;
		break;
	default:
		i |= I365_MEM_WS1 | I365_MEM_WS0;
		break;
	}

	indirect_write16(socket, base + I365_W_STOP, i);

	/* Take care of high byte */
	indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
	indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);

	/* card start */

	i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
	if (mem->flags & MAP_WRPROT)
		i |= I365_MEM_WRPROT;
	if (mem->flags & MAP_ATTRIB) {
		/* dprintk("requesting attribute memory for socket %i\n",
			socket->number);*/
		i |= I365_MEM_REG;
	} else {
		/* dprintk("requesting normal memory for socket %i\n",
			socket->number);*/
	}
	indirect_write16(socket, base + I365_W_OFF, i);

	/* Enable the window if necessary */
	if (mem->flags & MAP_ACTIVE)
		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));

	return 0;
}

static int pd6729_init(struct pcmcia_socket *sock)
{
	int i;
	struct resource res = { .end = 0x0fff };
	pccard_io_map io = { 0, 0, 0, 0, 1 };
	pccard_mem_map mem = { .res = &res, };

	pd6729_set_socket(sock, &dead_socket);
	for (i = 0; i < 2; i++) {
		io.map = i;
		pd6729_set_io_map(sock, &io);
	}
	for (i = 0; i < 5; i++) {
		mem.map = i;
		pd6729_set_mem_map(sock, &mem);
	}

	return 0;
}


/* the pccard structure and its functions */
static struct pccard_operations pd6729_operations = {
	.init 			= pd6729_init,
	.get_status		= pd6729_get_status,
	.set_socket		= pd6729_set_socket,
	.set_io_map		= pd6729_set_io_map,
	.set_mem_map		= pd6729_set_mem_map,
};

static irqreturn_t pd6729_test(int irq, void *dev)
{
	dprintk("-> hit on irq %d\n", irq);
	return IRQ_HANDLED;
}

static int pd6729_check_irq(int irq, int flags)
{
	if (request_irq(irq, pd6729_test, flags, "x", pd6729_test) != 0)
		return -1;
	free_irq(irq, pd6729_test);
	return 0;
}

static u_int __devinit pd6729_isa_scan(void)
{
	u_int mask0, mask = 0;
	int i;

	if (irq_mode == 1) {
		printk(KERN_INFO "pd6729: PCI card interrupts, "
						"PCI status changes\n");
		return 0;
	}

	if (irq_list_count == 0)
		mask0 = 0xffff;
	else
		for (i = mask0 = 0; i < irq_list_count; i++)
			mask0 |= (1<<irq_list[i]);

	mask0 &= PD67_MASK;

	/* just find interrupts that aren't in use */
	for (i = 0; i < 16; i++)
		if ((mask0 & (1 << i)) && (pd6729_check_irq(i, 0) == 0))
			mask |= (1 << i);

	printk(KERN_INFO "pd6729: ISA irqs = ");
	for (i = 0; i < 16; i++)
		if (mask & (1<<i))
			printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);

	if (mask == 0) printk("none!");

	printk("  polling status changes.\n");

	return mask;
}

static int __devinit pd6729_pci_probe(struct pci_dev *dev,
				      const struct pci_device_id *id)
{
	int i, j, ret;
	u_int mask;
	char configbyte;
	struct pd6729_socket *socket;

	socket = kzalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
			 GFP_KERNEL);
	if (!socket)
		return -ENOMEM;

	if ((ret = pci_enable_device(dev)))
		goto err_out_free_mem;

	printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge "
		"at 0x%llx on irq %d\n",
		(unsigned long long)pci_resource_start(dev, 0), dev->irq);
 	/*
	 * Since we have no memory BARs some firmware may not
	 * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
	 */
	pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
	if (!(configbyte & PCI_COMMAND_MEMORY)) {
		printk(KERN_DEBUG "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
		configbyte |= PCI_COMMAND_MEMORY;
		pci_write_config_byte(dev, PCI_COMMAND, configbyte);
	}

	ret = pci_request_regions(dev, "pd6729");
	if (ret) {
		printk(KERN_INFO "pd6729: pci request region failed.\n");
		goto err_out_disable;
	}

	if (dev->irq == NO_IRQ)
		irq_mode = 0;	/* fall back to ISA interrupt mode */

	mask = pd6729_isa_scan();
	if (irq_mode == 0 && mask == 0) {
		printk(KERN_INFO "pd6729: no ISA interrupt is available.\n");
		goto err_out_free_res;
	}

	for (i = 0; i < MAX_SOCKETS; i++) {
		socket[i].io_base = pci_resource_start(dev, 0);
		socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
		socket[i].socket.map_size = 0x1000;
		socket[i].socket.irq_mask = mask;
		socket[i].socket.pci_irq  = dev->irq;
		socket[i].socket.owner = THIS_MODULE;

		socket[i].number = i;

		socket[i].socket.ops = &pd6729_operations;
		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
		socket[i].socket.dev.dev = &dev->dev;
		socket[i].socket.driver_data = &socket[i];
	}

	pci_set_drvdata(dev, socket);
	if (irq_mode == 1) {
		/* Register the interrupt handler */
		if ((ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
							"pd6729", socket))) {
			printk(KERN_ERR "pd6729: Failed to register irq %d, "
							"aborting\n", dev->irq);
			goto err_out_free_res;
		}
	} else {
		/* poll Card status change */
		init_timer(&socket->poll_timer);
		socket->poll_timer.function = pd6729_interrupt_wrapper;
		socket->poll_timer.data = (unsigned long)socket;
		socket->poll_timer.expires = jiffies + HZ;
		add_timer(&socket->poll_timer);
	}

	for (i = 0; i < MAX_SOCKETS; i++) {
		ret = pcmcia_register_socket(&socket[i].socket);
		if (ret) {
			printk(KERN_INFO "pd6729: pcmcia_register_socket "
					       "failed.\n");
			for (j = 0; j < i ; j++)
				pcmcia_unregister_socket(&socket[j].socket);
			goto err_out_free_res2;
		}
	}

	return 0;

 err_out_free_res2:
	if (irq_mode == 1)
		free_irq(dev->irq, socket);
	else
		del_timer_sync(&socket->poll_timer);
 err_out_free_res:
	pci_release_regions(dev);
 err_out_disable:
	pci_disable_device(dev);

 err_out_free_mem:
	kfree(socket);
	return ret;
}

static void __devexit pd6729_pci_remove(struct pci_dev *dev)
{
	int i;
	struct pd6729_socket *socket = pci_get_drvdata(dev);

	for (i = 0; i < MAX_SOCKETS; i++) {
		/* Turn off all interrupt sources */
		indirect_write(&socket[i], I365_CSCINT, 0);
		indirect_write(&socket[i], I365_INTCTL, 0);

		pcmcia_unregister_socket(&socket[i].socket);
	}

	if (irq_mode == 1)
		free_irq(dev->irq, socket);
	else
		del_timer_sync(&socket->poll_timer);
	pci_release_regions(dev);
	pci_disable_device(dev);

	kfree(socket);
}

#ifdef CONFIG_PM
static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
{
	return pcmcia_socket_dev_suspend(&dev->dev, state);
}

static int pd6729_socket_resume(struct pci_dev *dev)
{
	return pcmcia_socket_dev_resume(&dev->dev);
}
#endif

static struct pci_device_id pd6729_pci_ids[] = {
	{
		.vendor		= PCI_VENDOR_ID_CIRRUS,
		.device		= PCI_DEVICE_ID_CIRRUS_6729,
		.subvendor	= PCI_ANY_ID,
		.subdevice	= PCI_ANY_ID,
	},
	{ }
};
MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);

static struct pci_driver pd6729_pci_drv = {
	.name		= "pd6729",
	.id_table	= pd6729_pci_ids,
	.probe		= pd6729_pci_probe,
	.remove		= __devexit_p(pd6729_pci_remove),
#ifdef CONFIG_PM
	.suspend	= pd6729_socket_suspend,
	.resume		= pd6729_socket_resume,
#endif
};

static int pd6729_module_init(void)
{
	return pci_register_driver(&pd6729_pci_drv);
}

static void pd6729_module_exit(void)
{
	pci_unregister_driver(&pd6729_pci_drv);
}

module_init(pd6729_module_init);
module_exit(pd6729_module_exit);