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/ss.h>
21
22
23#include "pd6729.h"
24#include "i82365.h"
25#include "cirrus.h"
26
27MODULE_LICENSE("GPL");
28MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge");
29MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>");
30
31#define MAX_SOCKETS 2
32
33/*
34 * simple helper functions
35 * External clock time, in nanoseconds.  120 ns = 8.33 MHz
36 */
37#define to_cycles(ns)	((ns)/120)
38
39#ifndef NO_IRQ
40#define NO_IRQ	((unsigned int)(0))
41#endif
42
43/*
44 * PARAMETERS
45 *  irq_mode=n
46 *     Specifies the interrupt delivery mode.  The default (1) is to use PCI
47 *     interrupts; a value of 0 selects ISA interrupts. This must be set for
48 *     correct operation of PCI card readers.
49 */
50
51static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */
52
53module_param(irq_mode, int, 0444);
54MODULE_PARM_DESC(irq_mode,
55		"interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1");
56
57static DEFINE_SPINLOCK(port_lock);
58
59/* basic value read/write functions */
60
61static unsigned char indirect_read(struct pd6729_socket *socket,
62				   unsigned short reg)
63{
64	unsigned long port;
65	unsigned char val;
66	unsigned long flags;
67
68	spin_lock_irqsave(&port_lock, flags);
69	reg += socket->number * 0x40;
70	port = socket->io_base;
71	outb(reg, port);
72	val = inb(port + 1);
73	spin_unlock_irqrestore(&port_lock, flags);
74
75	return val;
76}
77
78static unsigned short indirect_read16(struct pd6729_socket *socket,
79				      unsigned short reg)
80{
81	unsigned long port;
82	unsigned short tmp;
83	unsigned long flags;
84
85	spin_lock_irqsave(&port_lock, flags);
86	reg  = reg + socket->number * 0x40;
87	port = socket->io_base;
88	outb(reg, port);
89	tmp = inb(port + 1);
90	reg++;
91	outb(reg, port);
92	tmp = tmp | (inb(port + 1) << 8);
93	spin_unlock_irqrestore(&port_lock, flags);
94
95	return tmp;
96}
97
98static void indirect_write(struct pd6729_socket *socket, unsigned short reg,
99			   unsigned char value)
100{
101	unsigned long port;
102	unsigned long flags;
103
104	spin_lock_irqsave(&port_lock, flags);
105	reg = reg + socket->number * 0x40;
106	port = socket->io_base;
107	outb(reg, port);
108	outb(value, port + 1);
109	spin_unlock_irqrestore(&port_lock, flags);
110}
111
112static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg,
113			    unsigned char mask)
114{
115	unsigned long port;
116	unsigned char val;
117	unsigned long flags;
118
119	spin_lock_irqsave(&port_lock, flags);
120	reg = reg + socket->number * 0x40;
121	port = socket->io_base;
122	outb(reg, port);
123	val = inb(port + 1);
124	val |= mask;
125	outb(reg, port);
126	outb(val, port + 1);
127	spin_unlock_irqrestore(&port_lock, flags);
128}
129
130static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg,
131			      unsigned char mask)
132{
133	unsigned long port;
134	unsigned char val;
135	unsigned long flags;
136
137	spin_lock_irqsave(&port_lock, flags);
138	reg = reg + socket->number * 0x40;
139	port = socket->io_base;
140	outb(reg, port);
141	val = inb(port + 1);
142	val &= ~mask;
143	outb(reg, port);
144	outb(val, port + 1);
145	spin_unlock_irqrestore(&port_lock, flags);
146}
147
148static void indirect_write16(struct pd6729_socket *socket, unsigned short reg,
149			     unsigned short value)
150{
151	unsigned long port;
152	unsigned char val;
153	unsigned long flags;
154
155	spin_lock_irqsave(&port_lock, flags);
156	reg = reg + socket->number * 0x40;
157	port = socket->io_base;
158
159	outb(reg, port);
160	val = value & 255;
161	outb(val, port + 1);
162
163	reg++;
164
165	outb(reg, port);
166	val = value >> 8;
167	outb(val, port + 1);
168	spin_unlock_irqrestore(&port_lock, flags);
169}
170
171/* Interrupt handler functionality */
172
173static irqreturn_t pd6729_interrupt(int irq, void *dev)
174{
175	struct pd6729_socket *socket = (struct pd6729_socket *)dev;
176	int i;
177	int loopcount = 0;
178	int handled = 0;
179	unsigned int events, active = 0;
180
181	while (1) {
182		loopcount++;
183		if (loopcount > 20) {
184			printk(KERN_ERR "pd6729: infinite eventloop "
185			       "in interrupt\n");
186			break;
187		}
188
189		active = 0;
190
191		for (i = 0; i < MAX_SOCKETS; i++) {
192			unsigned int csc;
193
194			/* card status change register */
195			csc = indirect_read(&socket[i], I365_CSC);
196			if (csc == 0)  /* no events on this socket */
197				continue;
198
199			handled = 1;
200			events = 0;
201
202			if (csc & I365_CSC_DETECT) {
203				events |= SS_DETECT;
204				dev_vdbg(&socket[i].socket.dev,
205					"Card detected in socket %i!\n", i);
206			}
207
208			if (indirect_read(&socket[i], I365_INTCTL)
209						& I365_PC_IOCARD) {
210				/* For IO/CARDS, bit 0 means "read the card" */
211				events |= (csc & I365_CSC_STSCHG)
212						? SS_STSCHG : 0;
213			} else {
214				/* Check for battery/ready events */
215				events |= (csc & I365_CSC_BVD1)
216						? SS_BATDEAD : 0;
217				events |= (csc & I365_CSC_BVD2)
218						? SS_BATWARN : 0;
219				events |= (csc & I365_CSC_READY)
220						? SS_READY : 0;
221			}
222
223			if (events)
224				pcmcia_parse_events(&socket[i].socket, events);
225
226			active |= events;
227		}
228
229		if (active == 0) /* no more events to handle */
230			break;
231	}
232	return IRQ_RETVAL(handled);
233}
234
235/* socket functions */
236
237static void pd6729_interrupt_wrapper(unsigned long data)
238{
239	struct pd6729_socket *socket = (struct pd6729_socket *) data;
240
241	pd6729_interrupt(0, (void *)socket);
242	mod_timer(&socket->poll_timer, jiffies + HZ);
243}
244
245static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
246{
247	struct pd6729_socket *socket
248			= container_of(sock, struct pd6729_socket, socket);
249	unsigned int status;
250	unsigned int data;
251	struct pd6729_socket *t;
252
253	/* Interface Status Register */
254	status = indirect_read(socket, I365_STATUS);
255	*value = 0;
256
257	if ((status & I365_CS_DETECT) == I365_CS_DETECT)
258		*value |= SS_DETECT;
259
260	/*
261	 * IO cards have a different meaning of bits 0,1
262	 * Also notice the inverse-logic on the bits
263	 */
264	if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
265		/* IO card */
266		if (!(status & I365_CS_STSCHG))
267			*value |= SS_STSCHG;
268	} else {
269		/* non I/O card */
270		if (!(status & I365_CS_BVD1))
271			*value |= SS_BATDEAD;
272		if (!(status & I365_CS_BVD2))
273			*value |= SS_BATWARN;
274	}
275
276	if (status & I365_CS_WRPROT)
277		*value |= SS_WRPROT;	/* card is write protected */
278
279	if (status & I365_CS_READY)
280		*value |= SS_READY;	/* card is not busy */
281
282	if (status & I365_CS_POWERON)
283		*value |= SS_POWERON;	/* power is applied to the card */
284
285	t = (socket->number) ? socket : socket + 1;
286	indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
287	data = indirect_read16(t, PD67_EXT_DATA);
288	*value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
289
290	return 0;
291}
292
293
294static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
295{
296	struct pd6729_socket *socket
297			= container_of(sock, struct pd6729_socket, socket);
298	unsigned char reg, data;
299
300	/* First, set the global controller options */
301	indirect_write(socket, I365_GBLCTL, 0x00);
302	indirect_write(socket, I365_GENCTL, 0x00);
303
304	/* Values for the IGENC register */
305	socket->card_irq = state->io_irq;
306
307	reg = 0;
308	/* The reset bit has "inverse" logic */
309	if (!(state->flags & SS_RESET))
310		reg |= I365_PC_RESET;
311	if (state->flags & SS_IOCARD)
312		reg |= I365_PC_IOCARD;
313
314	/* IGENC, Interrupt and General Control Register */
315	indirect_write(socket, I365_INTCTL, reg);
316
317	/* Power registers */
318
319	reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
320
321	if (state->flags & SS_PWR_AUTO) {
322		dev_dbg(&sock->dev, "Auto power\n");
323		reg |= I365_PWR_AUTO;	/* automatic power mngmnt */
324	}
325	if (state->flags & SS_OUTPUT_ENA) {
326		dev_dbg(&sock->dev, "Power Enabled\n");
327		reg |= I365_PWR_OUT;	/* enable power */
328	}
329
330	switch (state->Vcc) {
331	case 0:
332		break;
333	case 33:
334		dev_dbg(&sock->dev,
335			"setting voltage to Vcc to 3.3V on socket %i\n",
336			socket->number);
337		reg |= I365_VCC_5V;
338		indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
339		break;
340	case 50:
341		dev_dbg(&sock->dev,
342			"setting voltage to Vcc to 5V on socket %i\n",
343			socket->number);
344		reg |= I365_VCC_5V;
345		indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
346		break;
347	default:
348		dev_dbg(&sock->dev,
349			"pd6729_set_socket called with invalid VCC power "
350			"value: %i\n", state->Vcc);
351		return -EINVAL;
352	}
353
354	switch (state->Vpp) {
355	case 0:
356		dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
357			socket->number);
358		break;
359	case 33:
360	case 50:
361		dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
362			socket->number);
363		reg |= I365_VPP1_5V;
364		break;
365	case 120:
366		dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
367		reg |= I365_VPP1_12V;
368		break;
369	default:
370		dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
371			"invalid VPP power value: %i\n", state->Vpp);
372		return -EINVAL;
373	}
374
375	/* only write if changed */
376	if (reg != indirect_read(socket, I365_POWER))
377		indirect_write(socket, I365_POWER, reg);
378
379	if (irq_mode == 1) {
380		/* all interrupts are to be done as PCI interrupts */
381		data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
382	} else
383		data = 0;
384
385	indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
386	indirect_write(socket, PD67_EXT_DATA, data);
387
388	/* Enable specific interrupt events */
389
390	reg = 0x00;
391	if (state->csc_mask & SS_DETECT)
392		reg |= I365_CSC_DETECT;
393
394	if (state->flags & SS_IOCARD) {
395		if (state->csc_mask & SS_STSCHG)
396			reg |= I365_CSC_STSCHG;
397	} else {
398		if (state->csc_mask & SS_BATDEAD)
399			reg |= I365_CSC_BVD1;
400		if (state->csc_mask & SS_BATWARN)
401			reg |= I365_CSC_BVD2;
402		if (state->csc_mask & SS_READY)
403			reg |= I365_CSC_READY;
404	}
405	if (irq_mode == 1)
406		reg |= 0x30;	/* management IRQ: PCI INTA# = "irq 3" */
407	indirect_write(socket, I365_CSCINT, reg);
408
409	reg = indirect_read(socket, I365_INTCTL);
410	if (irq_mode == 1)
411		reg |= 0x03;	/* card IRQ: PCI INTA# = "irq 3" */
412	else
413		reg |= socket->card_irq;
414	indirect_write(socket, I365_INTCTL, reg);
415
416	/* now clear the (probably bogus) pending stuff by doing a dummy read */
417	(void)indirect_read(socket, I365_CSC);
418
419	return 0;
420}
421
422static int pd6729_set_io_map(struct pcmcia_socket *sock,
423			     struct pccard_io_map *io)
424{
425	struct pd6729_socket *socket
426			= container_of(sock, struct pd6729_socket, socket);
427	unsigned char map, ioctl;
428
429	map = io->map;
430
431	/* Check error conditions */
432	if (map > 1) {
433		dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
434		return -EINVAL;
435	}
436
437	/* Turn off the window before changing anything */
438	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
439		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
440
441	/* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
442	   io->start, io->stop);*/
443
444	/* write the new values */
445	indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
446	indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
447
448	ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
449
450	if (io->flags & MAP_0WS)
451		ioctl |= I365_IOCTL_0WS(map);
452	if (io->flags & MAP_16BIT)
453		ioctl |= I365_IOCTL_16BIT(map);
454	if (io->flags & MAP_AUTOSZ)
455		ioctl |= I365_IOCTL_IOCS16(map);
456
457	indirect_write(socket, I365_IOCTL, ioctl);
458
459	/* Turn the window back on if needed */
460	if (io->flags & MAP_ACTIVE)
461		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
462
463	return 0;
464}
465
466static int pd6729_set_mem_map(struct pcmcia_socket *sock,
467			      struct pccard_mem_map *mem)
468{
469	struct pd6729_socket *socket
470			 = container_of(sock, struct pd6729_socket, socket);
471	unsigned short base, i;
472	unsigned char map;
473
474	map = mem->map;
475	if (map > 4) {
476		dev_warn(&sock->dev, "invalid map requested\n");
477		return -EINVAL;
478	}
479
480	if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
481		dev_warn(&sock->dev, "invalid invalid address / speed\n");
482		return -EINVAL;
483	}
484
485	/* Turn off the window before changing anything */
486	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
487		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
488
489	/* write the start address */
490	base = I365_MEM(map);
491	i = (mem->res->start >> 12) & 0x0fff;
492	if (mem->flags & MAP_16BIT)
493		i |= I365_MEM_16BIT;
494	if (mem->flags & MAP_0WS)
495		i |= I365_MEM_0WS;
496	indirect_write16(socket, base + I365_W_START, i);
497
498	/* write the stop address */
499
500	i = (mem->res->end >> 12) & 0x0fff;
501	switch (to_cycles(mem->speed)) {
502	case 0:
503		break;
504	case 1:
505		i |= I365_MEM_WS0;
506		break;
507	case 2:
508		i |= I365_MEM_WS1;
509		break;
510	default:
511		i |= I365_MEM_WS1 | I365_MEM_WS0;
512		break;
513	}
514
515	indirect_write16(socket, base + I365_W_STOP, i);
516
517	/* Take care of high byte */
518	indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
519	indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
520
521	/* card start */
522
523	i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
524	if (mem->flags & MAP_WRPROT)
525		i |= I365_MEM_WRPROT;
526	if (mem->flags & MAP_ATTRIB) {
527		/* dev_dbg(&sock->dev, "requesting attribute memory for "
528		   "socket %i\n", socket->number);*/
529		i |= I365_MEM_REG;
530	} else {
531		/* dev_dbg(&sock->dev, "requesting normal memory for "
532		   "socket %i\n", socket->number);*/
533	}
534	indirect_write16(socket, base + I365_W_OFF, i);
535
536	/* Enable the window if necessary */
537	if (mem->flags & MAP_ACTIVE)
538		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
539
540	return 0;
541}
542
543static int pd6729_init(struct pcmcia_socket *sock)
544{
545	int i;
546	struct resource res = { .end = 0x0fff };
547	pccard_io_map io = { 0, 0, 0, 0, 1 };
548	pccard_mem_map mem = { .res = &res, };
549
550	pd6729_set_socket(sock, &dead_socket);
551	for (i = 0; i < 2; i++) {
552		io.map = i;
553		pd6729_set_io_map(sock, &io);
554	}
555	for (i = 0; i < 5; i++) {
556		mem.map = i;
557		pd6729_set_mem_map(sock, &mem);
558	}
559
560	return 0;
561}
562
563
564/* the pccard structure and its functions */
565static struct pccard_operations pd6729_operations = {
566	.init			= pd6729_init,
567	.get_status		= pd6729_get_status,
568	.set_socket		= pd6729_set_socket,
569	.set_io_map		= pd6729_set_io_map,
570	.set_mem_map		= pd6729_set_mem_map,
571};
572
573static irqreturn_t pd6729_test(int irq, void *dev)
574{
575	pr_devel("-> hit on irq %d\n", irq);
576	return IRQ_HANDLED;
577}
578
579static int pd6729_check_irq(int irq)
580{
581	int ret;
582
583	ret = request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x",
584			  pd6729_test);
585	if (ret)
586		return -1;
587
588	free_irq(irq, pd6729_test);
589	return 0;
590}
591
592static u_int 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	mask0 = PD67_MASK;
604
605	/* just find interrupts that aren't in use */
606	for (i = 0; i < 16; i++)
607		if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
608			mask |= (1 << i);
609
610	printk(KERN_INFO "pd6729: ISA irqs = ");
611	for (i = 0; i < 16; i++)
612		if (mask & (1<<i))
613			printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
614
615	if (mask == 0)
616		printk("none!");
617	else
618		printk("  polling status changes.\n");
619
620	return mask;
621}
622
623static int pd6729_pci_probe(struct pci_dev *dev,
624				      const struct pci_device_id *id)
625{
626	int i, j, ret;
627	u_int mask;
628	char configbyte;
629	struct pd6729_socket *socket;
630
631	socket = kzalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
632			 GFP_KERNEL);
633	if (!socket) {
634		dev_warn(&dev->dev, "failed to kzalloc socket.\n");
635		return -ENOMEM;
636	}
637
638	ret = pci_enable_device(dev);
639	if (ret) {
640		dev_warn(&dev->dev, "failed to enable pci_device.\n");
641		goto err_out_free_mem;
642	}
643
644	if (!pci_resource_start(dev, 0)) {
645		dev_warn(&dev->dev, "refusing to load the driver as the "
646			"io_base is NULL.\n");
647		ret = -ENOMEM;
648		goto err_out_disable;
649	}
650
651	dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
652		"on irq %d\n",
653		(unsigned long long)pci_resource_start(dev, 0), dev->irq);
654	/*
655	 * Since we have no memory BARs some firmware may not
656	 * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
657	 */
658	pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
659	if (!(configbyte & PCI_COMMAND_MEMORY)) {
660		dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
661		configbyte |= PCI_COMMAND_MEMORY;
662		pci_write_config_byte(dev, PCI_COMMAND, configbyte);
663	}
664
665	ret = pci_request_regions(dev, "pd6729");
666	if (ret) {
667		dev_warn(&dev->dev, "pci request region failed.\n");
668		goto err_out_disable;
669	}
670
671	if (dev->irq == NO_IRQ)
672		irq_mode = 0;	/* fall back to ISA interrupt mode */
673
674	mask = pd6729_isa_scan();
675	if (irq_mode == 0 && mask == 0) {
676		dev_warn(&dev->dev, "no ISA interrupt is available.\n");
677		ret = -ENODEV;
678		goto err_out_free_res;
679	}
680
681	for (i = 0; i < MAX_SOCKETS; i++) {
682		socket[i].io_base = pci_resource_start(dev, 0);
683		socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
684		socket[i].socket.map_size = 0x1000;
685		socket[i].socket.irq_mask = mask;
686		socket[i].socket.pci_irq  = dev->irq;
687		socket[i].socket.cb_dev = dev;
688		socket[i].socket.owner = THIS_MODULE;
689
690		socket[i].number = i;
691
692		socket[i].socket.ops = &pd6729_operations;
693		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
694		socket[i].socket.dev.parent = &dev->dev;
695		socket[i].socket.driver_data = &socket[i];
696	}
697
698	pci_set_drvdata(dev, socket);
699	if (irq_mode == 1) {
700		/* Register the interrupt handler */
701		ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
702				  "pd6729", socket);
703		if (ret) {
704			dev_err(&dev->dev, "Failed to register irq %d\n",
705				dev->irq);
706			goto err_out_free_res;
707		}
708	} else {
709		/* poll Card status change */
710		setup_timer(&socket->poll_timer, pd6729_interrupt_wrapper,
711			    (unsigned long)socket);
712		mod_timer(&socket->poll_timer, jiffies + HZ);
713	}
714
715	for (i = 0; i < MAX_SOCKETS; i++) {
716		ret = pcmcia_register_socket(&socket[i].socket);
717		if (ret) {
718			dev_warn(&dev->dev, "pcmcia_register_socket failed.\n");
719			for (j = 0; j < i ; j++)
720				pcmcia_unregister_socket(&socket[j].socket);
721			goto err_out_free_res2;
722		}
723	}
724
725	return 0;
726
727err_out_free_res2:
728	if (irq_mode == 1)
729		free_irq(dev->irq, socket);
730	else
731		del_timer_sync(&socket->poll_timer);
732err_out_free_res:
733	pci_release_regions(dev);
734err_out_disable:
735	pci_disable_device(dev);
736
737err_out_free_mem:
738	kfree(socket);
739	return ret;
740}
741
742static void pd6729_pci_remove(struct pci_dev *dev)
743{
744	int i;
745	struct pd6729_socket *socket = pci_get_drvdata(dev);
746
747	for (i = 0; i < MAX_SOCKETS; i++) {
748		/* Turn off all interrupt sources */
749		indirect_write(&socket[i], I365_CSCINT, 0);
750		indirect_write(&socket[i], I365_INTCTL, 0);
751
752		pcmcia_unregister_socket(&socket[i].socket);
753	}
754
755	if (irq_mode == 1)
756		free_irq(dev->irq, socket);
757	else
758		del_timer_sync(&socket->poll_timer);
759	pci_release_regions(dev);
760	pci_disable_device(dev);
761
762	kfree(socket);
763}
764
765static const struct pci_device_id pd6729_pci_ids[] = {
766	{ PCI_DEVICE(PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_6729) },
767	{ }
768};
769MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
770
771static struct pci_driver pd6729_pci_driver = {
772	.name		= "pd6729",
773	.id_table	= pd6729_pci_ids,
774	.probe		= pd6729_pci_probe,
775	.remove		= pd6729_pci_remove,
776};
777
778module_pci_driver(pd6729_pci_driver);
779