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/linux-2.6.33/kernel/linux-2.6.33/drivers/pcmcia/pd6729.c

https://bitbucket.org/microcreat/cortexm_uclinux
C | 813 lines | 601 code | 140 blank | 72 comment | 100 complexity | 91594427b0e74e39902a989f22b20c18 MD5 | raw file
  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 unsigned 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				dev_vdbg(&socket[i].socket.dev,
217					"Card detected in socket %i!\n", i);
218			}
219
220			if (indirect_read(&socket[i], I365_INTCTL)
221						& I365_PC_IOCARD) {
222				/* For IO/CARDS, bit 0 means "read the card" */
223				events |= (csc & I365_CSC_STSCHG)
224						? SS_STSCHG : 0;
225			} else {
226				/* Check for battery/ready events */
227				events |= (csc & I365_CSC_BVD1)
228						? SS_BATDEAD : 0;
229				events |= (csc & I365_CSC_BVD2)
230						? SS_BATWARN : 0;
231				events |= (csc & I365_CSC_READY)
232						? SS_READY : 0;
233			}
234
235			if (events) {
236				pcmcia_parse_events(&socket[i].socket, events);
237			}
238			active |= events;
239		}
240
241		if (active == 0) /* no more events to handle */
242			break;
243	}
244	return IRQ_RETVAL(handled);
245}
246
247/* socket functions */
248
249static void pd6729_interrupt_wrapper(unsigned long data)
250{
251	struct pd6729_socket *socket = (struct pd6729_socket *) data;
252
253	pd6729_interrupt(0, (void *)socket);
254	mod_timer(&socket->poll_timer, jiffies + HZ);
255}
256
257static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value)
258{
259	struct pd6729_socket *socket
260			= container_of(sock, struct pd6729_socket, socket);
261	unsigned int status;
262	unsigned int data;
263	struct pd6729_socket *t;
264
265	/* Interface Status Register */
266	status = indirect_read(socket, I365_STATUS);
267	*value = 0;
268
269	if ((status & I365_CS_DETECT) == I365_CS_DETECT) {
270		*value |= SS_DETECT;
271	}
272
273	/*
274	 * IO cards have a different meaning of bits 0,1
275	 * Also notice the inverse-logic on the bits
276	 */
277	if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) {
278		/* IO card */
279		if (!(status & I365_CS_STSCHG))
280			*value |= SS_STSCHG;
281	} else {
282		/* non I/O card */
283		if (!(status & I365_CS_BVD1))
284			*value |= SS_BATDEAD;
285		if (!(status & I365_CS_BVD2))
286			*value |= SS_BATWARN;
287	}
288
289	if (status & I365_CS_WRPROT)
290		*value |= SS_WRPROT;	/* card is write protected */
291
292	if (status & I365_CS_READY)
293		*value |= SS_READY;	/* card is not busy */
294
295	if (status & I365_CS_POWERON)
296		*value |= SS_POWERON;	/* power is applied to the card */
297
298	t = (socket->number) ? socket : socket + 1;
299	indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA);
300	data = indirect_read16(t, PD67_EXT_DATA);
301	*value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD;
302
303	return 0;
304}
305
306
307static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state)
308{
309	struct pd6729_socket *socket
310			= container_of(sock, struct pd6729_socket, socket);
311	unsigned char reg, data;
312
313	/* First, set the global controller options */
314	indirect_write(socket, I365_GBLCTL, 0x00);
315	indirect_write(socket, I365_GENCTL, 0x00);
316
317	/* Values for the IGENC register */
318	socket->card_irq = state->io_irq;
319
320	reg = 0;
321 	/* The reset bit has "inverse" logic */
322	if (!(state->flags & SS_RESET))
323		reg |= I365_PC_RESET;
324	if (state->flags & SS_IOCARD)
325		reg |= I365_PC_IOCARD;
326
327	/* IGENC, Interrupt and General Control Register */
328	indirect_write(socket, I365_INTCTL, reg);
329
330	/* Power registers */
331
332	reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */
333
334	if (state->flags & SS_PWR_AUTO) {
335		dev_dbg(&sock->dev, "Auto power\n");
336		reg |= I365_PWR_AUTO;	/* automatic power mngmnt */
337	}
338	if (state->flags & SS_OUTPUT_ENA) {
339		dev_dbg(&sock->dev, "Power Enabled\n");
340		reg |= I365_PWR_OUT;	/* enable power */
341	}
342
343	switch (state->Vcc) {
344	case 0:
345		break;
346	case 33:
347		dev_dbg(&sock->dev,
348			"setting voltage to Vcc to 3.3V on socket %i\n",
349			socket->number);
350		reg |= I365_VCC_5V;
351		indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
352		break;
353	case 50:
354		dev_dbg(&sock->dev,
355			"setting voltage to Vcc to 5V on socket %i\n",
356			socket->number);
357		reg |= I365_VCC_5V;
358		indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V);
359		break;
360	default:
361		dev_dbg(&sock->dev,
362			"pd6729_set_socket called with invalid VCC power "
363			"value: %i\n", state->Vcc);
364		return -EINVAL;
365	}
366
367	switch (state->Vpp) {
368	case 0:
369		dev_dbg(&sock->dev, "not setting Vpp on socket %i\n",
370			socket->number);
371		break;
372	case 33:
373	case 50:
374		dev_dbg(&sock->dev, "setting Vpp to Vcc for socket %i\n",
375			socket->number);
376		reg |= I365_VPP1_5V;
377		break;
378	case 120:
379		dev_dbg(&sock->dev, "setting Vpp to 12.0\n");
380		reg |= I365_VPP1_12V;
381		break;
382	default:
383		dev_dbg(&sock->dev, "pd6729: pd6729_set_socket called with "
384			"invalid VPP power value: %i\n", state->Vpp);
385		return -EINVAL;
386	}
387
388	/* only write if changed */
389	if (reg != indirect_read(socket, I365_POWER))
390		indirect_write(socket, I365_POWER, reg);
391
392	if (irq_mode == 1) {
393		 /* all interrupts are to be done as PCI interrupts */
394		data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ;
395	} else
396		data = 0;
397
398	indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1);
399	indirect_write(socket, PD67_EXT_DATA, data);
400
401	/* Enable specific interrupt events */
402
403	reg = 0x00;
404	if (state->csc_mask & SS_DETECT) {
405		reg |= I365_CSC_DETECT;
406	}
407	if (state->flags & SS_IOCARD) {
408		if (state->csc_mask & SS_STSCHG)
409			reg |= I365_CSC_STSCHG;
410	} else {
411		if (state->csc_mask & SS_BATDEAD)
412			reg |= I365_CSC_BVD1;
413		if (state->csc_mask & SS_BATWARN)
414			reg |= I365_CSC_BVD2;
415		if (state->csc_mask & SS_READY)
416			reg |= I365_CSC_READY;
417	}
418	if (irq_mode == 1)
419		reg |= 0x30;	/* management IRQ: PCI INTA# = "irq 3" */
420	indirect_write(socket, I365_CSCINT, reg);
421
422	reg = indirect_read(socket, I365_INTCTL);
423	if (irq_mode == 1)
424		reg |= 0x03;	/* card IRQ: PCI INTA# = "irq 3" */
425	else
426		reg |= socket->card_irq;
427	indirect_write(socket, I365_INTCTL, reg);
428
429	/* now clear the (probably bogus) pending stuff by doing a dummy read */
430	(void)indirect_read(socket, I365_CSC);
431
432	return 0;
433}
434
435static int pd6729_set_io_map(struct pcmcia_socket *sock,
436			     struct pccard_io_map *io)
437{
438	struct pd6729_socket *socket
439			= container_of(sock, struct pd6729_socket, socket);
440	unsigned char map, ioctl;
441
442	map = io->map;
443
444	/* Check error conditions */
445	if (map > 1) {
446		dev_dbg(&sock->dev, "pd6729_set_io_map with invalid map\n");
447		return -EINVAL;
448	}
449
450	/* Turn off the window before changing anything */
451	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map))
452		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
453
454	/* dev_dbg(&sock->dev, "set_io_map: Setting range to %x - %x\n",
455	   io->start, io->stop);*/
456
457	/* write the new values */
458	indirect_write16(socket, I365_IO(map)+I365_W_START, io->start);
459	indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop);
460
461	ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map);
462
463	if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map);
464	if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map);
465	if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map);
466
467	indirect_write(socket, I365_IOCTL, ioctl);
468
469	/* Turn the window back on if needed */
470	if (io->flags & MAP_ACTIVE)
471		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map));
472
473	return 0;
474}
475
476static int pd6729_set_mem_map(struct pcmcia_socket *sock,
477			      struct pccard_mem_map *mem)
478{
479	struct pd6729_socket *socket
480			 = container_of(sock, struct pd6729_socket, socket);
481	unsigned short base, i;
482	unsigned char map;
483
484	map = mem->map;
485	if (map > 4) {
486		dev_warn(&sock->dev, "invalid map requested\n");
487		return -EINVAL;
488	}
489
490	if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) {
491		dev_warn(&sock->dev, "invalid invalid address / speed\n");
492		return -EINVAL;
493	}
494
495	/* Turn off the window before changing anything */
496	if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map))
497		indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
498
499	/* write the start address */
500	base = I365_MEM(map);
501	i = (mem->res->start >> 12) & 0x0fff;
502	if (mem->flags & MAP_16BIT)
503		i |= I365_MEM_16BIT;
504	if (mem->flags & MAP_0WS)
505		i |= I365_MEM_0WS;
506	indirect_write16(socket, base + I365_W_START, i);
507
508	/* write the stop address */
509
510	i= (mem->res->end >> 12) & 0x0fff;
511	switch (to_cycles(mem->speed)) {
512	case 0:
513		break;
514	case 1:
515		i |= I365_MEM_WS0;
516		break;
517	case 2:
518		i |= I365_MEM_WS1;
519		break;
520	default:
521		i |= I365_MEM_WS1 | I365_MEM_WS0;
522		break;
523	}
524
525	indirect_write16(socket, base + I365_W_STOP, i);
526
527	/* Take care of high byte */
528	indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map));
529	indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24);
530
531	/* card start */
532
533	i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff;
534	if (mem->flags & MAP_WRPROT)
535		i |= I365_MEM_WRPROT;
536	if (mem->flags & MAP_ATTRIB) {
537		/* dev_dbg(&sock->dev, "requesting attribute memory for "
538		   "socket %i\n", socket->number);*/
539		i |= I365_MEM_REG;
540	} else {
541		/* dev_dbg(&sock->dev, "requesting normal memory for "
542		   "socket %i\n", socket->number);*/
543	}
544	indirect_write16(socket, base + I365_W_OFF, i);
545
546	/* Enable the window if necessary */
547	if (mem->flags & MAP_ACTIVE)
548		indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map));
549
550	return 0;
551}
552
553static int pd6729_init(struct pcmcia_socket *sock)
554{
555	int i;
556	struct resource res = { .end = 0x0fff };
557	pccard_io_map io = { 0, 0, 0, 0, 1 };
558	pccard_mem_map mem = { .res = &res, };
559
560	pd6729_set_socket(sock, &dead_socket);
561	for (i = 0; i < 2; i++) {
562		io.map = i;
563		pd6729_set_io_map(sock, &io);
564	}
565	for (i = 0; i < 5; i++) {
566		mem.map = i;
567		pd6729_set_mem_map(sock, &mem);
568	}
569
570	return 0;
571}
572
573
574/* the pccard structure and its functions */
575static struct pccard_operations pd6729_operations = {
576	.init 			= pd6729_init,
577	.get_status		= pd6729_get_status,
578	.set_socket		= pd6729_set_socket,
579	.set_io_map		= pd6729_set_io_map,
580	.set_mem_map		= pd6729_set_mem_map,
581};
582
583static irqreturn_t pd6729_test(int irq, void *dev)
584{
585	pr_devel("-> hit on irq %d\n", irq);
586	return IRQ_HANDLED;
587}
588
589static int pd6729_check_irq(int irq)
590{
591	if (request_irq(irq, pd6729_test, IRQF_PROBE_SHARED, "x", pd6729_test)
592		!= 0) return -1;
593	free_irq(irq, pd6729_test);
594	return 0;
595}
596
597static u_int __devinit pd6729_isa_scan(void)
598{
599	u_int mask0, mask = 0;
600	int i;
601
602	if (irq_mode == 1) {
603		printk(KERN_INFO "pd6729: PCI card interrupts, "
604						"PCI status changes\n");
605		return 0;
606	}
607
608	if (irq_list_count == 0)
609		mask0 = 0xffff;
610	else
611		for (i = mask0 = 0; i < irq_list_count; i++)
612			mask0 |= (1<<irq_list[i]);
613
614	mask0 &= PD67_MASK;
615
616	/* just find interrupts that aren't in use */
617	for (i = 0; i < 16; i++)
618		if ((mask0 & (1 << i)) && (pd6729_check_irq(i) == 0))
619			mask |= (1 << i);
620
621	printk(KERN_INFO "pd6729: ISA irqs = ");
622	for (i = 0; i < 16; i++)
623		if (mask & (1<<i))
624			printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i);
625
626	if (mask == 0) printk("none!");
627
628	printk("  polling status changes.\n");
629
630	return mask;
631}
632
633static int __devinit pd6729_pci_probe(struct pci_dev *dev,
634				      const struct pci_device_id *id)
635{
636	int i, j, ret;
637	u_int mask;
638	char configbyte;
639	struct pd6729_socket *socket;
640
641	socket = kzalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS,
642			 GFP_KERNEL);
643	if (!socket)
644		return -ENOMEM;
645
646	if ((ret = pci_enable_device(dev)))
647		goto err_out_free_mem;
648
649	if (!pci_resource_start(dev, 0)) {
650		dev_warn(&dev->dev, "refusing to load the driver as the "
651			"io_base is NULL.\n");
652		goto err_out_free_mem;
653	}
654
655	dev_info(&dev->dev, "Cirrus PD6729 PCI to PCMCIA Bridge at 0x%llx "
656		"on irq %d\n",
657		(unsigned long long)pci_resource_start(dev, 0), dev->irq);
658 	/*
659	 * Since we have no memory BARs some firmware may not
660	 * have had PCI_COMMAND_MEMORY enabled, yet the device needs it.
661	 */
662	pci_read_config_byte(dev, PCI_COMMAND, &configbyte);
663	if (!(configbyte & PCI_COMMAND_MEMORY)) {
664		dev_dbg(&dev->dev, "pd6729: Enabling PCI_COMMAND_MEMORY.\n");
665		configbyte |= PCI_COMMAND_MEMORY;
666		pci_write_config_byte(dev, PCI_COMMAND, configbyte);
667	}
668
669	ret = pci_request_regions(dev, "pd6729");
670	if (ret) {
671		dev_warn(&dev->dev, "pci request region failed.\n");
672		goto err_out_disable;
673	}
674
675	if (dev->irq == NO_IRQ)
676		irq_mode = 0;	/* fall back to ISA interrupt mode */
677
678	mask = pd6729_isa_scan();
679	if (irq_mode == 0 && mask == 0) {
680		dev_warn(&dev->dev, "no ISA interrupt is available.\n");
681		goto err_out_free_res;
682	}
683
684	for (i = 0; i < MAX_SOCKETS; i++) {
685		socket[i].io_base = pci_resource_start(dev, 0);
686		socket[i].socket.features |= SS_CAP_PAGE_REGS | SS_CAP_PCCARD;
687		socket[i].socket.map_size = 0x1000;
688		socket[i].socket.irq_mask = mask;
689		socket[i].socket.pci_irq  = dev->irq;
690		socket[i].socket.owner = THIS_MODULE;
691
692		socket[i].number = i;
693
694		socket[i].socket.ops = &pd6729_operations;
695		socket[i].socket.resource_ops = &pccard_nonstatic_ops;
696		socket[i].socket.dev.parent = &dev->dev;
697		socket[i].socket.driver_data = &socket[i];
698	}
699
700	pci_set_drvdata(dev, socket);
701	if (irq_mode == 1) {
702		/* Register the interrupt handler */
703		if ((ret = request_irq(dev->irq, pd6729_interrupt, IRQF_SHARED,
704							"pd6729", socket))) {
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
745static 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#ifdef CONFIG_PM
769static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state)
770{
771	return pcmcia_socket_dev_suspend(&dev->dev);
772}
773
774static int pd6729_socket_resume(struct pci_dev *dev)
775{
776	return pcmcia_socket_dev_resume(&dev->dev);
777}
778#endif
779
780static struct pci_device_id pd6729_pci_ids[] = {
781	{
782		.vendor		= PCI_VENDOR_ID_CIRRUS,
783		.device		= PCI_DEVICE_ID_CIRRUS_6729,
784		.subvendor	= PCI_ANY_ID,
785		.subdevice	= PCI_ANY_ID,
786	},
787	{ }
788};
789MODULE_DEVICE_TABLE(pci, pd6729_pci_ids);
790
791static struct pci_driver pd6729_pci_driver = {
792	.name		= "pd6729",
793	.id_table	= pd6729_pci_ids,
794	.probe		= pd6729_pci_probe,
795	.remove		= __devexit_p(pd6729_pci_remove),
796#ifdef CONFIG_PM
797	.suspend	= pd6729_socket_suspend,
798	.resume		= pd6729_socket_resume,
799#endif
800};
801
802static int pd6729_module_init(void)
803{
804	return pci_register_driver(&pd6729_pci_driver);
805}
806
807static void pd6729_module_exit(void)
808{
809	pci_unregister_driver(&pd6729_pci_driver);
810}
811
812module_init(pd6729_module_init);
813module_exit(pd6729_module_exit);