dtl1_cs.c revision cc3b4866bee996c922e875b8c8efe9f0d8803aae 
1/*
2 *
3 *  A driver for Nokia Connectivity Card DTL-1 devices
4 *
5 *  Copyright (C) 2001-2002  Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 *  This program is free software; you can redistribute it and/or modify
9 *  it under the terms of the GNU General Public License version 2 as
10 *  published by the Free Software Foundation;
11 *
12 *  Software distributed under the License is distributed on an "AS
13 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 *  implied. See the License for the specific language governing
15 *  rights and limitations under the License.
16 *
17 *  The initial developer of the original code is David A. Hinds
18 *  <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
19 *  are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
20 *
21 */
22
23#include <linux/config.h>
24#include <linux/module.h>
25
26#include <linux/kernel.h>
27#include <linux/init.h>
28#include <linux/slab.h>
29#include <linux/types.h>
30#include <linux/sched.h>
31#include <linux/delay.h>
32#include <linux/errno.h>
33#include <linux/ptrace.h>
34#include <linux/ioport.h>
35#include <linux/spinlock.h>
36#include <linux/moduleparam.h>
37
38#include <linux/skbuff.h>
39#include <linux/string.h>
40#include <linux/serial.h>
41#include <linux/serial_reg.h>
42#include <linux/bitops.h>
43#include <asm/system.h>
44#include <asm/io.h>
45
46#include <pcmcia/cs_types.h>
47#include <pcmcia/cs.h>
48#include <pcmcia/cistpl.h>
49#include <pcmcia/ciscode.h>
50#include <pcmcia/ds.h>
51#include <pcmcia/cisreg.h>
52
53#include <net/bluetooth/bluetooth.h>
54#include <net/bluetooth/hci_core.h>
55
56
57
58/* ======================== Module parameters ======================== */
59
60
61MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
62MODULE_DESCRIPTION("Bluetooth driver for Nokia Connectivity Card DTL-1");
63MODULE_LICENSE("GPL");
64
65
66
67/* ======================== Local structures ======================== */
68
69
70typedef struct dtl1_info_t {
71	dev_link_t link;
72	dev_node_t node;
73
74	struct hci_dev *hdev;
75
76	spinlock_t lock;		/* For serializing operations */
77
78	unsigned long flowmask;		/* HCI flow mask */
79	int ri_latch;
80
81	struct sk_buff_head txq;
82	unsigned long tx_state;
83
84	unsigned long rx_state;
85	unsigned long rx_count;
86	struct sk_buff *rx_skb;
87} dtl1_info_t;
88
89
90static void dtl1_config(dev_link_t *link);
91static void dtl1_release(dev_link_t *link);
92static int dtl1_event(event_t event, int priority, event_callback_args_t *args);
93
94static dev_info_t dev_info = "dtl1_cs";
95
96static dev_link_t *dtl1_attach(void);
97static void dtl1_detach(struct pcmcia_device *p_dev);
98
99static dev_link_t *dev_list = NULL;
100
101
102/* Transmit states  */
103#define XMIT_SENDING  1
104#define XMIT_WAKEUP   2
105#define XMIT_WAITING  8
106
107/* Receiver States */
108#define RECV_WAIT_NSH   0
109#define RECV_WAIT_DATA  1
110
111
112typedef struct {
113	u8 type;
114	u8 zero;
115	u16 len;
116} __attribute__ ((packed)) nsh_t;	/* Nokia Specific Header */
117
118#define NSHL  4				/* Nokia Specific Header Length */
119
120
121
122/* ======================== Interrupt handling ======================== */
123
124
125static int dtl1_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
126{
127	int actual = 0;
128
129	/* Tx FIFO should be empty */
130	if (!(inb(iobase + UART_LSR) & UART_LSR_THRE))
131		return 0;
132
133	/* Fill FIFO with current frame */
134	while ((fifo_size-- > 0) && (actual < len)) {
135		/* Transmit next byte */
136		outb(buf[actual], iobase + UART_TX);
137		actual++;
138	}
139
140	return actual;
141}
142
143
144static void dtl1_write_wakeup(dtl1_info_t *info)
145{
146	if (!info) {
147		BT_ERR("Unknown device");
148		return;
149	}
150
151	if (test_bit(XMIT_WAITING, &(info->tx_state))) {
152		set_bit(XMIT_WAKEUP, &(info->tx_state));
153		return;
154	}
155
156	if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
157		set_bit(XMIT_WAKEUP, &(info->tx_state));
158		return;
159	}
160
161	do {
162		register unsigned int iobase = info->link.io.BasePort1;
163		register struct sk_buff *skb;
164		register int len;
165
166		clear_bit(XMIT_WAKEUP, &(info->tx_state));
167
168		if (!(info->link.state & DEV_PRESENT))
169			return;
170
171		if (!(skb = skb_dequeue(&(info->txq))))
172			break;
173
174		/* Send frame */
175		len = dtl1_write(iobase, 32, skb->data, skb->len);
176
177		if (len == skb->len) {
178			set_bit(XMIT_WAITING, &(info->tx_state));
179			kfree_skb(skb);
180		} else {
181			skb_pull(skb, len);
182			skb_queue_head(&(info->txq), skb);
183		}
184
185		info->hdev->stat.byte_tx += len;
186
187	} while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
188
189	clear_bit(XMIT_SENDING, &(info->tx_state));
190}
191
192
193static void dtl1_control(dtl1_info_t *info, struct sk_buff *skb)
194{
195	u8 flowmask = *(u8 *)skb->data;
196	int i;
197
198	printk(KERN_INFO "Bluetooth: Nokia control data =");
199	for (i = 0; i < skb->len; i++) {
200		printk(" %02x", skb->data[i]);
201	}
202	printk("\n");
203
204	/* transition to active state */
205	if (((info->flowmask & 0x07) == 0) && ((flowmask & 0x07) != 0)) {
206		clear_bit(XMIT_WAITING, &(info->tx_state));
207		dtl1_write_wakeup(info);
208	}
209
210	info->flowmask = flowmask;
211
212	kfree_skb(skb);
213}
214
215
216static void dtl1_receive(dtl1_info_t *info)
217{
218	unsigned int iobase;
219	nsh_t *nsh;
220	int boguscount = 0;
221
222	if (!info) {
223		BT_ERR("Unknown device");
224		return;
225	}
226
227	iobase = info->link.io.BasePort1;
228
229	do {
230		info->hdev->stat.byte_rx++;
231
232		/* Allocate packet */
233		if (info->rx_skb == NULL)
234			if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
235				BT_ERR("Can't allocate mem for new packet");
236				info->rx_state = RECV_WAIT_NSH;
237				info->rx_count = NSHL;
238				return;
239			}
240
241		*skb_put(info->rx_skb, 1) = inb(iobase + UART_RX);
242		nsh = (nsh_t *)info->rx_skb->data;
243
244		info->rx_count--;
245
246		if (info->rx_count == 0) {
247
248			switch (info->rx_state) {
249			case RECV_WAIT_NSH:
250				info->rx_state = RECV_WAIT_DATA;
251				info->rx_count = nsh->len + (nsh->len & 0x0001);
252				break;
253			case RECV_WAIT_DATA:
254				bt_cb(info->rx_skb)->pkt_type = nsh->type;
255
256				/* remove PAD byte if it exists */
257				if (nsh->len & 0x0001) {
258					info->rx_skb->tail--;
259					info->rx_skb->len--;
260				}
261
262				/* remove NSH */
263				skb_pull(info->rx_skb, NSHL);
264
265				switch (bt_cb(info->rx_skb)->pkt_type) {
266				case 0x80:
267					/* control data for the Nokia Card */
268					dtl1_control(info, info->rx_skb);
269					break;
270				case 0x82:
271				case 0x83:
272				case 0x84:
273					/* send frame to the HCI layer */
274					info->rx_skb->dev = (void *) info->hdev;
275					bt_cb(info->rx_skb)->pkt_type &= 0x0f;
276					hci_recv_frame(info->rx_skb);
277					break;
278				default:
279					/* unknown packet */
280					BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
281					kfree_skb(info->rx_skb);
282					break;
283				}
284
285				info->rx_state = RECV_WAIT_NSH;
286				info->rx_count = NSHL;
287				info->rx_skb = NULL;
288				break;
289			}
290
291		}
292
293		/* Make sure we don't stay here too long */
294		if (boguscount++ > 32)
295			break;
296
297	} while (inb(iobase + UART_LSR) & UART_LSR_DR);
298}
299
300
301static irqreturn_t dtl1_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
302{
303	dtl1_info_t *info = dev_inst;
304	unsigned int iobase;
305	unsigned char msr;
306	int boguscount = 0;
307	int iir, lsr;
308
309	if (!info || !info->hdev) {
310		BT_ERR("Call of irq %d for unknown device", irq);
311		return IRQ_NONE;
312	}
313
314	iobase = info->link.io.BasePort1;
315
316	spin_lock(&(info->lock));
317
318	iir = inb(iobase + UART_IIR) & UART_IIR_ID;
319	while (iir) {
320
321		/* Clear interrupt */
322		lsr = inb(iobase + UART_LSR);
323
324		switch (iir) {
325		case UART_IIR_RLSI:
326			BT_ERR("RLSI");
327			break;
328		case UART_IIR_RDI:
329			/* Receive interrupt */
330			dtl1_receive(info);
331			break;
332		case UART_IIR_THRI:
333			if (lsr & UART_LSR_THRE) {
334				/* Transmitter ready for data */
335				dtl1_write_wakeup(info);
336			}
337			break;
338		default:
339			BT_ERR("Unhandled IIR=%#x", iir);
340			break;
341		}
342
343		/* Make sure we don't stay here too long */
344		if (boguscount++ > 100)
345			break;
346
347		iir = inb(iobase + UART_IIR) & UART_IIR_ID;
348
349	}
350
351	msr = inb(iobase + UART_MSR);
352
353	if (info->ri_latch ^ (msr & UART_MSR_RI)) {
354		info->ri_latch = msr & UART_MSR_RI;
355		clear_bit(XMIT_WAITING, &(info->tx_state));
356		dtl1_write_wakeup(info);
357	}
358
359	spin_unlock(&(info->lock));
360
361	return IRQ_HANDLED;
362}
363
364
365
366/* ======================== HCI interface ======================== */
367
368
369static int dtl1_hci_open(struct hci_dev *hdev)
370{
371	set_bit(HCI_RUNNING, &(hdev->flags));
372
373	return 0;
374}
375
376
377static int dtl1_hci_flush(struct hci_dev *hdev)
378{
379	dtl1_info_t *info = (dtl1_info_t *)(hdev->driver_data);
380
381	/* Drop TX queue */
382	skb_queue_purge(&(info->txq));
383
384	return 0;
385}
386
387
388static int dtl1_hci_close(struct hci_dev *hdev)
389{
390	if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
391		return 0;
392
393	dtl1_hci_flush(hdev);
394
395	return 0;
396}
397
398
399static int dtl1_hci_send_frame(struct sk_buff *skb)
400{
401	dtl1_info_t *info;
402	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
403	struct sk_buff *s;
404	nsh_t nsh;
405
406	if (!hdev) {
407		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
408		return -ENODEV;
409	}
410
411	info = (dtl1_info_t *)(hdev->driver_data);
412
413	switch (bt_cb(skb)->pkt_type) {
414	case HCI_COMMAND_PKT:
415		hdev->stat.cmd_tx++;
416		nsh.type = 0x81;
417		break;
418	case HCI_ACLDATA_PKT:
419		hdev->stat.acl_tx++;
420		nsh.type = 0x82;
421		break;
422	case HCI_SCODATA_PKT:
423		hdev->stat.sco_tx++;
424		nsh.type = 0x83;
425		break;
426	};
427
428	nsh.zero = 0;
429	nsh.len = skb->len;
430
431	s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
432	skb_reserve(s, NSHL);
433	memcpy(skb_put(s, skb->len), skb->data, skb->len);
434	if (skb->len & 0x0001)
435		*skb_put(s, 1) = 0;	/* PAD */
436
437	/* Prepend skb with Nokia frame header and queue */
438	memcpy(skb_push(s, NSHL), &nsh, NSHL);
439	skb_queue_tail(&(info->txq), s);
440
441	dtl1_write_wakeup(info);
442
443	kfree_skb(skb);
444
445	return 0;
446}
447
448
449static void dtl1_hci_destruct(struct hci_dev *hdev)
450{
451}
452
453
454static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd,  unsigned long arg)
455{
456	return -ENOIOCTLCMD;
457}
458
459
460
461/* ======================== Card services HCI interaction ======================== */
462
463
464static int dtl1_open(dtl1_info_t *info)
465{
466	unsigned long flags;
467	unsigned int iobase = info->link.io.BasePort1;
468	struct hci_dev *hdev;
469
470	spin_lock_init(&(info->lock));
471
472	skb_queue_head_init(&(info->txq));
473
474	info->rx_state = RECV_WAIT_NSH;
475	info->rx_count = NSHL;
476	info->rx_skb = NULL;
477
478	set_bit(XMIT_WAITING, &(info->tx_state));
479
480	/* Initialize HCI device */
481	hdev = hci_alloc_dev();
482	if (!hdev) {
483		BT_ERR("Can't allocate HCI device");
484		return -ENOMEM;
485	}
486
487	info->hdev = hdev;
488
489	hdev->type = HCI_PCCARD;
490	hdev->driver_data = info;
491
492	hdev->open     = dtl1_hci_open;
493	hdev->close    = dtl1_hci_close;
494	hdev->flush    = dtl1_hci_flush;
495	hdev->send     = dtl1_hci_send_frame;
496	hdev->destruct = dtl1_hci_destruct;
497	hdev->ioctl    = dtl1_hci_ioctl;
498
499	hdev->owner = THIS_MODULE;
500
501	spin_lock_irqsave(&(info->lock), flags);
502
503	/* Reset UART */
504	outb(0, iobase + UART_MCR);
505
506	/* Turn off interrupts */
507	outb(0, iobase + UART_IER);
508
509	/* Initialize UART */
510	outb(UART_LCR_WLEN8, iobase + UART_LCR);	/* Reset DLAB */
511	outb((UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2), iobase + UART_MCR);
512
513	info->ri_latch = inb(info->link.io.BasePort1 + UART_MSR) & UART_MSR_RI;
514
515	/* Turn on interrupts */
516	outb(UART_IER_RLSI | UART_IER_RDI | UART_IER_THRI, iobase + UART_IER);
517
518	spin_unlock_irqrestore(&(info->lock), flags);
519
520	/* Timeout before it is safe to send the first HCI packet */
521	msleep(2000);
522
523	/* Register HCI device */
524	if (hci_register_dev(hdev) < 0) {
525		BT_ERR("Can't register HCI device");
526		info->hdev = NULL;
527		hci_free_dev(hdev);
528		return -ENODEV;
529	}
530
531	return 0;
532}
533
534
535static int dtl1_close(dtl1_info_t *info)
536{
537	unsigned long flags;
538	unsigned int iobase = info->link.io.BasePort1;
539	struct hci_dev *hdev = info->hdev;
540
541	if (!hdev)
542		return -ENODEV;
543
544	dtl1_hci_close(hdev);
545
546	spin_lock_irqsave(&(info->lock), flags);
547
548	/* Reset UART */
549	outb(0, iobase + UART_MCR);
550
551	/* Turn off interrupts */
552	outb(0, iobase + UART_IER);
553
554	spin_unlock_irqrestore(&(info->lock), flags);
555
556	if (hci_unregister_dev(hdev) < 0)
557		BT_ERR("Can't unregister HCI device %s", hdev->name);
558
559	hci_free_dev(hdev);
560
561	return 0;
562}
563
564static dev_link_t *dtl1_attach(void)
565{
566	dtl1_info_t *info;
567	client_reg_t client_reg;
568	dev_link_t *link;
569	int ret;
570
571	/* Create new info device */
572	info = kzalloc(sizeof(*info), GFP_KERNEL);
573	if (!info)
574		return NULL;
575
576	link = &info->link;
577	link->priv = info;
578
579	link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
580	link->io.NumPorts1 = 8;
581	link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
582	link->irq.IRQInfo1 = IRQ_LEVEL_ID;
583
584	link->irq.Handler = dtl1_interrupt;
585	link->irq.Instance = info;
586
587	link->conf.Attributes = CONF_ENABLE_IRQ;
588	link->conf.Vcc = 50;
589	link->conf.IntType = INT_MEMORY_AND_IO;
590
591	/* Register with Card Services */
592	link->next = dev_list;
593	dev_list = link;
594	client_reg.dev_info = &dev_info;
595	client_reg.Version = 0x0210;
596	client_reg.event_callback_args.client_data = link;
597
598	ret = pcmcia_register_client(&link->handle, &client_reg);
599	if (ret != CS_SUCCESS) {
600		cs_error(link->handle, RegisterClient, ret);
601		dtl1_detach(link->handle);
602		return NULL;
603	}
604
605	return link;
606}
607
608
609static void dtl1_detach(struct pcmcia_device *p_dev)
610{
611	dev_link_t *link = dev_to_instance(p_dev);
612	dtl1_info_t *info = link->priv;
613	dev_link_t **linkp;
614
615	/* Locate device structure */
616	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
617		if (*linkp == link)
618			break;
619
620	if (*linkp == NULL)
621		return;
622
623	if (link->state & DEV_CONFIG)
624		dtl1_release(link);
625
626	/* Unlink device structure, free bits */
627	*linkp = link->next;
628
629	kfree(info);
630}
631
632static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
633{
634	int i;
635
636	i = pcmcia_get_tuple_data(handle, tuple);
637	if (i != CS_SUCCESS)
638		return i;
639
640	return pcmcia_parse_tuple(handle, tuple, parse);
641}
642
643static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
644{
645	if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
646		return CS_NO_MORE_ITEMS;
647	return get_tuple(handle, tuple, parse);
648}
649
650static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
651{
652	if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
653		return CS_NO_MORE_ITEMS;
654	return get_tuple(handle, tuple, parse);
655}
656
657static void dtl1_config(dev_link_t *link)
658{
659	client_handle_t handle = link->handle;
660	dtl1_info_t *info = link->priv;
661	tuple_t tuple;
662	u_short buf[256];
663	cisparse_t parse;
664	cistpl_cftable_entry_t *cf = &parse.cftable_entry;
665	config_info_t config;
666	int i, last_ret, last_fn;
667
668	tuple.TupleData = (cisdata_t *)buf;
669	tuple.TupleOffset = 0;
670	tuple.TupleDataMax = 255;
671	tuple.Attributes = 0;
672
673	/* Get configuration register information */
674	tuple.DesiredTuple = CISTPL_CONFIG;
675	last_ret = first_tuple(handle, &tuple, &parse);
676	if (last_ret != CS_SUCCESS) {
677		last_fn = ParseTuple;
678		goto cs_failed;
679	}
680	link->conf.ConfigBase = parse.config.base;
681	link->conf.Present = parse.config.rmask[0];
682
683	/* Configure card */
684	link->state |= DEV_CONFIG;
685	i = pcmcia_get_configuration_info(handle, &config);
686	link->conf.Vcc = config.Vcc;
687
688	tuple.TupleData = (cisdata_t *)buf;
689	tuple.TupleOffset = 0;
690	tuple.TupleDataMax = 255;
691	tuple.Attributes = 0;
692	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
693
694	/* Look for a generic full-sized window */
695	link->io.NumPorts1 = 8;
696	i = first_tuple(handle, &tuple, &parse);
697	while (i != CS_NO_MORE_ITEMS) {
698		if ((i == CS_SUCCESS) && (cf->io.nwin == 1) && (cf->io.win[0].len > 8)) {
699			link->conf.ConfigIndex = cf->index;
700			link->io.BasePort1 = cf->io.win[0].base;
701			link->io.NumPorts1 = cf->io.win[0].len;	/*yo */
702			link->io.IOAddrLines = cf->io.flags & CISTPL_IO_LINES_MASK;
703			i = pcmcia_request_io(link->handle, &link->io);
704			if (i == CS_SUCCESS)
705				break;
706		}
707		i = next_tuple(handle, &tuple, &parse);
708	}
709
710	if (i != CS_SUCCESS) {
711		cs_error(link->handle, RequestIO, i);
712		goto failed;
713	}
714
715	i = pcmcia_request_irq(link->handle, &link->irq);
716	if (i != CS_SUCCESS) {
717		cs_error(link->handle, RequestIRQ, i);
718		link->irq.AssignedIRQ = 0;
719	}
720
721	i = pcmcia_request_configuration(link->handle, &link->conf);
722	if (i != CS_SUCCESS) {
723		cs_error(link->handle, RequestConfiguration, i);
724		goto failed;
725	}
726
727	if (dtl1_open(info) != 0)
728		goto failed;
729
730	strcpy(info->node.dev_name, info->hdev->name);
731	link->dev = &info->node;
732	link->state &= ~DEV_CONFIG_PENDING;
733
734	return;
735
736cs_failed:
737	cs_error(link->handle, last_fn, last_ret);
738
739failed:
740	dtl1_release(link);
741}
742
743
744static void dtl1_release(dev_link_t *link)
745{
746	dtl1_info_t *info = link->priv;
747
748	if (link->state & DEV_PRESENT)
749		dtl1_close(info);
750
751	link->dev = NULL;
752
753	pcmcia_release_configuration(link->handle);
754	pcmcia_release_io(link->handle, &link->io);
755	pcmcia_release_irq(link->handle, &link->irq);
756
757	link->state &= ~DEV_CONFIG;
758}
759
760static int dtl1_suspend(struct pcmcia_device *dev)
761{
762	dev_link_t *link = dev_to_instance(dev);
763
764	link->state |= DEV_SUSPEND;
765	if (link->state & DEV_CONFIG)
766		pcmcia_release_configuration(link->handle);
767
768	return 0;
769}
770
771static int dtl1_resume(struct pcmcia_device *dev)
772{
773	dev_link_t *link = dev_to_instance(dev);
774
775	link->state &= ~DEV_SUSPEND;
776	if (DEV_OK(link))
777		pcmcia_request_configuration(link->handle, &link->conf);
778
779	return 0;
780}
781
782static int dtl1_event(event_t event, int priority, event_callback_args_t *args)
783{
784	dev_link_t *link = args->client_data;
785
786	switch (event) {
787	case CS_EVENT_CARD_INSERTION:
788		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
789		dtl1_config(link);
790		break;
791	}
792
793	return 0;
794}
795
796static struct pcmcia_device_id dtl1_ids[] = {
797	PCMCIA_DEVICE_PROD_ID12("Nokia Mobile Phones", "DTL-1", 0xe1bfdd64, 0xe168480d),
798	PCMCIA_DEVICE_PROD_ID12("Socket", "CF", 0xb38bcc2e, 0x44ebf863),
799	PCMCIA_DEVICE_NULL
800};
801MODULE_DEVICE_TABLE(pcmcia, dtl1_ids);
802
803static struct pcmcia_driver dtl1_driver = {
804	.owner		= THIS_MODULE,
805	.drv		= {
806		.name	= "dtl1_cs",
807	},
808	.attach		= dtl1_attach,
809	.event		= dtl1_event,
810	.remove		= dtl1_detach,
811	.id_table	= dtl1_ids,
812	.suspend	= dtl1_suspend,
813	.resume		= dtl1_resume,
814};
815
816static int __init init_dtl1_cs(void)
817{
818	return pcmcia_register_driver(&dtl1_driver);
819}
820
821
822static void __exit exit_dtl1_cs(void)
823{
824	pcmcia_unregister_driver(&dtl1_driver);
825	BUG_ON(dev_list != NULL);
826}
827
828module_init(init_dtl1_cs);
829module_exit(exit_dtl1_cs);
830