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
29MODULE_LICENSE("GPL");
30MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
31MODULE_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
59static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
60static int irq_list[16];
61static int irq_list_count = 0;
62
63module_param(irq_mode, int, 0444);
64module_param_array(irq_list, int, &irq_list_count, 0444);
65MODULE_PARM_DESC(irq_mode,
66		"interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
67MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards");
68
69static DEFINE_SPINLOCK(port_lock);
70
71/* basic value read/write functions */
72
73static 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
90static 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
110static 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
124static 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
142static 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
160static 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
185static 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
248static 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
256static 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
306static 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
430static 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
471static 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
548static 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 */
570static 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
578static irqreturn_t pd6729_test(int irq, void *dev)
579{
580	dprintk("-> hit on irq %d\n", irq);
581	return IRQ_HANDLED;
582}
583
584static int pd6729_check_irq(int irq)
585{
586	if (request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x", pd6729_test)
587		!= 0) return -1;
588	free_irq(irq, pd6729_test);
589	return 0;
590}
591
592static 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))
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
628static 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.parent = &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
735static 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
759static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
760{
761	return pcmcia_socket_dev_suspend(&dev->dev, state);
762}
763
764static int pd6729_socket_resume(struct pci_dev *dev)
765{
766	return pcmcia_socket_dev_resume(&dev->dev);
767}
768#endif
769
770static 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};
779MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
780
781static 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
792static int pd6729_module_init(void)
793{
794	return pci_register_driver(&pd6729_pci_drv);
795}
796
797static void pd6729_module_exit(void)
798{
799	pci_unregister_driver(&pd6729_pci_drv);
800}
801
802module_init(pd6729_module_init);
803module_exit(pd6729_module_exit);
804