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Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
[linux.git] / drivers / bluetooth / bt3c_cs.c
CommitLineData
1da177e4
LT		 1/*
2 *
3 * Driver for the 3Com Bluetooth PCMCIA card
4 *
5 * Copyright (C) 2001-2002 Marcel Holtmann <[email protected]>
6 * Jose Orlando Pereira <[email protected]>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation;
12 *
13 * Software distributed under the License is distributed on an "AS
14 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
15 * implied. See the License for the specific language governing
16 * rights and limitations under the License.
17 *
18 * The initial developer of the original code is David A. Hinds
19 * <[email protected]>. Portions created by David A. Hinds
20 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
21 *
22 */
23
24#include <linux/config.h>
25#include <linux/module.h>
26
27#include <linux/kernel.h>
28#include <linux/init.h>
29#include <linux/slab.h>
30#include <linux/types.h>
31#include <linux/sched.h>
32#include <linux/delay.h>
33#include <linux/errno.h>
34#include <linux/ptrace.h>
35#include <linux/ioport.h>
36#include <linux/spinlock.h>
37#include <linux/moduleparam.h>
38
39#include <linux/skbuff.h>
40#include <linux/string.h>
41#include <linux/serial.h>
42#include <linux/serial_reg.h>
43#include <linux/bitops.h>
44#include <asm/system.h>
45#include <asm/io.h>
46
47#include <linux/device.h>
48#include <linux/firmware.h>
49
1da177e4
LT		 50#include <pcmcia/cs_types.h>
51#include <pcmcia/cs.h>
52#include <pcmcia/cistpl.h>
53#include <pcmcia/ciscode.h>
54#include <pcmcia/ds.h>
55#include <pcmcia/cisreg.h>
56
57#include <net/bluetooth/bluetooth.h>
58#include <net/bluetooth/hci_core.h>
59
60
61
62/* ======================== Module parameters ======================== */
63
64
65MODULE_AUTHOR("Marcel Holtmann <[email protected]>, Jose Orlando Pereira <[email protected]>");
66MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card");
67MODULE_LICENSE("GPL");
68
69
70
71/* ======================== Local structures ======================== */
72
73
74typedef struct bt3c_info_t {
75 dev_link_t link;
76 dev_node_t node;
77
78 struct hci_dev *hdev;
79
80 spinlock_t lock; /* For serializing operations */
81
82 struct sk_buff_head txq;
83 unsigned long tx_state;
84
85 unsigned long rx_state;
86 unsigned long rx_count;
87 struct sk_buff *rx_skb;
88} bt3c_info_t;
89
90
91static void bt3c_config(dev_link_t *link);
92static void bt3c_release(dev_link_t *link);
1da177e4 93
cc3b4866 94static void bt3c_detach(struct pcmcia_device *p_dev);
1da177e4 95
1da177e4
LT		 96
97/* Transmit states */
98#define XMIT_SENDING 1
99#define XMIT_WAKEUP 2
100#define XMIT_WAITING 8
101
102/* Receiver states */
103#define RECV_WAIT_PACKET_TYPE 0
104#define RECV_WAIT_EVENT_HEADER 1
105#define RECV_WAIT_ACL_HEADER 2
106#define RECV_WAIT_SCO_HEADER 3
107#define RECV_WAIT_DATA 4
108
109
110
111/* ======================== Special I/O functions ======================== */
112
113
114#define DATA_L 0
115#define DATA_H 1
116#define ADDR_L 2
117#define ADDR_H 3
118#define CONTROL 4
119
120
121static inline void bt3c_address(unsigned int iobase, unsigned short addr)
122{
123 outb(addr & 0xff, iobase + ADDR_L);
124 outb((addr >> 8) & 0xff, iobase + ADDR_H);
125}
126
127
128static inline void bt3c_put(unsigned int iobase, unsigned short value)
129{
130 outb(value & 0xff, iobase + DATA_L);
131 outb((value >> 8) & 0xff, iobase + DATA_H);
132}
133
134
135static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value)
136{
137 bt3c_address(iobase, addr);
138 bt3c_put(iobase, value);
139}
140
141
142static inline unsigned short bt3c_get(unsigned int iobase)
143{
144 unsigned short value = inb(iobase + DATA_L);
145
146 value |= inb(iobase + DATA_H) << 8;
147
148 return value;
149}
150
151
152static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr)
153{
154 bt3c_address(iobase, addr);
155
156 return bt3c_get(iobase);
157}
158
159
160
161/* ======================== Interrupt handling ======================== */
162
163
164static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len)
165{
166 int actual = 0;
167
168 bt3c_address(iobase, 0x7080);
169
170 /* Fill FIFO with current frame */
171 while (actual < len) {
172 /* Transmit next byte */
173 bt3c_put(iobase, buf[actual]);
174 actual++;
175 }
176
177 bt3c_io_write(iobase, 0x7005, actual);
178
179 return actual;
180}
181
182
183static void bt3c_write_wakeup(bt3c_info_t *info)
184{
185 if (!info) {
186 BT_ERR("Unknown device");
187 return;
188 }
189
190 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state)))
191 return;
192
193 do {
194 register unsigned int iobase = info->link.io.BasePort1;
195 register struct sk_buff *skb;
196 register int len;
197
198 if (!(info->link.state & DEV_PRESENT))
199 break;
200
201
202 if (!(skb = skb_dequeue(&(info->txq)))) {
203 clear_bit(XMIT_SENDING, &(info->tx_state));
204 break;
205 }
206
207 /* Send frame */
208 len = bt3c_write(iobase, 256, skb->data, skb->len);
209
210 if (len != skb->len) {
211 BT_ERR("Very strange");
212 }
213
214 kfree_skb(skb);
215
216 info->hdev->stat.byte_tx += len;
217
218 } while (0);
219}
220
221
222static void bt3c_receive(bt3c_info_t *info)
223{
224 unsigned int iobase;
225 int size = 0, avail;
226
227 if (!info) {
228 BT_ERR("Unknown device");
229 return;
230 }
231
232 iobase = info->link.io.BasePort1;
233
234 avail = bt3c_read(iobase, 0x7006);
235 //printk("bt3c_cs: receiving %d bytes\n", avail);
236
237 bt3c_address(iobase, 0x7480);
238 while (size < avail) {
239 size++;
240 info->hdev->stat.byte_rx++;
241
242 /* Allocate packet */
243 if (info->rx_skb == NULL) {
244 info->rx_state = RECV_WAIT_PACKET_TYPE;
245 info->rx_count = 0;
246 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
247 BT_ERR("Can't allocate mem for new packet");
248 return;
249 }
250 }
251
252
253 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
254
255 info->rx_skb->dev = (void *) info->hdev;
0d48d939 256 bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L);
1da177e4 257 inb(iobase + DATA_H);
0d48d939 258 //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type);
1da177e4 259
0d48d939 260 switch (bt_cb(info->rx_skb)->pkt_type) {
1da177e4
LT		 261
262 case HCI_EVENT_PKT:
263 info->rx_state = RECV_WAIT_EVENT_HEADER;
264 info->rx_count = HCI_EVENT_HDR_SIZE;
265 break;
266
267 case HCI_ACLDATA_PKT:
268 info->rx_state = RECV_WAIT_ACL_HEADER;
269 info->rx_count = HCI_ACL_HDR_SIZE;
270 break;
271
272 case HCI_SCODATA_PKT:
273 info->rx_state = RECV_WAIT_SCO_HEADER;
274 info->rx_count = HCI_SCO_HDR_SIZE;
275 break;
276
277 default:
278 /* Unknown packet */
0d48d939 279 BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
1da177e4
LT		 280 info->hdev->stat.err_rx++;
281 clear_bit(HCI_RUNNING, &(info->hdev->flags));
282
283 kfree_skb(info->rx_skb);
284 info->rx_skb = NULL;
285 break;
286
287 }
288
289 } else {
290
291 __u8 x = inb(iobase + DATA_L);
292
293 *skb_put(info->rx_skb, 1) = x;
294 inb(iobase + DATA_H);
295 info->rx_count--;
296
297 if (info->rx_count == 0) {
298
299 int dlen;
300 struct hci_event_hdr *eh;
301 struct hci_acl_hdr *ah;
302 struct hci_sco_hdr *sh;
303
304 switch (info->rx_state) {
305
306 case RECV_WAIT_EVENT_HEADER:
307 eh = (struct hci_event_hdr *)(info->rx_skb->data);
308 info->rx_state = RECV_WAIT_DATA;
309 info->rx_count = eh->plen;
310 break;
311
312 case RECV_WAIT_ACL_HEADER:
313 ah = (struct hci_acl_hdr *)(info->rx_skb->data);
314 dlen = __le16_to_cpu(ah->dlen);
315 info->rx_state = RECV_WAIT_DATA;
316 info->rx_count = dlen;
317 break;
318
319 case RECV_WAIT_SCO_HEADER:
320 sh = (struct hci_sco_hdr *)(info->rx_skb->data);
321 info->rx_state = RECV_WAIT_DATA;
322 info->rx_count = sh->dlen;
323 break;
324
325 case RECV_WAIT_DATA:
326 hci_recv_frame(info->rx_skb);
327 info->rx_skb = NULL;
328 break;
329
330 }
331
332 }
333
334 }
335
336 }
337
338 bt3c_io_write(iobase, 0x7006, 0x0000);
339}
340
341
342static irqreturn_t bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
343{
344 bt3c_info_t *info = dev_inst;
345 unsigned int iobase;
346 int iir;
347
348 if (!info || !info->hdev) {
349 BT_ERR("Call of irq %d for unknown device", irq);
350 return IRQ_NONE;
351 }
352
353 iobase = info->link.io.BasePort1;
354
355 spin_lock(&(info->lock));
356
357 iir = inb(iobase + CONTROL);
358 if (iir & 0x80) {
359 int stat = bt3c_read(iobase, 0x7001);
360
361 if ((stat & 0xff) == 0x7f) {
362 BT_ERR("Very strange (stat=0x%04x)", stat);
363 } else if ((stat & 0xff) != 0xff) {
364 if (stat & 0x0020) {
365 int stat = bt3c_read(iobase, 0x7002) & 0x10;
366 BT_INFO("%s: Antenna %s", info->hdev->name,
367 stat ? "out" : "in");
368 }
369 if (stat & 0x0001)
370 bt3c_receive(info);
371 if (stat & 0x0002) {
372 //BT_ERR("Ack (stat=0x%04x)", stat);
373 clear_bit(XMIT_SENDING, &(info->tx_state));
374 bt3c_write_wakeup(info);
375 }
376
377 bt3c_io_write(iobase, 0x7001, 0x0000);
378
379 outb(iir, iobase + CONTROL);
380 }
381 }
382
383 spin_unlock(&(info->lock));
384
385 return IRQ_HANDLED;
386}
387
388
389
390/* ======================== HCI interface ======================== */
391
392
393static int bt3c_hci_flush(struct hci_dev *hdev)
394{
395 bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data);
396
397 /* Drop TX queue */
398 skb_queue_purge(&(info->txq));
399
400 return 0;
401}
402
403
404static int bt3c_hci_open(struct hci_dev *hdev)
405{
406 set_bit(HCI_RUNNING, &(hdev->flags));
407
408 return 0;
409}
410
411
412static int bt3c_hci_close(struct hci_dev *hdev)
413{
414 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
415 return 0;
416
417 bt3c_hci_flush(hdev);
418
419 return 0;
420}
421
422
423static int bt3c_hci_send_frame(struct sk_buff *skb)
424{
425 bt3c_info_t *info;
426 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
427 unsigned long flags;
428
429 if (!hdev) {
430 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
431 return -ENODEV;
432 }
433
434 info = (bt3c_info_t *) (hdev->driver_data);
435
0d48d939 436 switch (bt_cb(skb)->pkt_type) {
1da177e4
LT		 437 case HCI_COMMAND_PKT:
438 hdev->stat.cmd_tx++;
439 break;
440 case HCI_ACLDATA_PKT:
441 hdev->stat.acl_tx++;
442 break;
443 case HCI_SCODATA_PKT:
444 hdev->stat.sco_tx++;
445 break;
446 };
447
448 /* Prepend skb with frame type */
0d48d939 449 memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
1da177e4
LT		 450 skb_queue_tail(&(info->txq), skb);
451
452 spin_lock_irqsave(&(info->lock), flags);
453
454 bt3c_write_wakeup(info);
455
456 spin_unlock_irqrestore(&(info->lock), flags);
457
458 return 0;
459}
460
461
462static void bt3c_hci_destruct(struct hci_dev *hdev)
463{
464}
465
466
467static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
468{
469 return -ENOIOCTLCMD;
470}
471
472
473
474/* ======================== Card services HCI interaction ======================== */
475
476
1da177e4
LT		 477static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count)
478{
479 char *ptr = (char *) firmware;
480 char b[9];
481 unsigned int iobase, size, addr, fcs, tmp;
482 int i, err = 0;
483
484 iobase = info->link.io.BasePort1;
485
486 /* Reset */
487 bt3c_io_write(iobase, 0x8040, 0x0404);
488 bt3c_io_write(iobase, 0x8040, 0x0400);
489
490 udelay(1);
491
492 bt3c_io_write(iobase, 0x8040, 0x0404);
493
494 udelay(17);
495
496 /* Load */
497 while (count) {
498 if (ptr[0] != 'S') {
499 BT_ERR("Bad address in firmware");
500 err = -EFAULT;
501 goto error;
502 }
503
504 memset(b, 0, sizeof(b));
505 memcpy(b, ptr + 2, 2);
506 size = simple_strtol(b, NULL, 16);
507
508 memset(b, 0, sizeof(b));
509 memcpy(b, ptr + 4, 8);
510 addr = simple_strtol(b, NULL, 16);
511
512 memset(b, 0, sizeof(b));
513 memcpy(b, ptr + (size * 2) + 2, 2);
514 fcs = simple_strtol(b, NULL, 16);
515
516 memset(b, 0, sizeof(b));
517 for (tmp = 0, i = 0; i < size; i++) {
518 memcpy(b, ptr + (i * 2) + 2, 2);
519 tmp += simple_strtol(b, NULL, 16);
520 }
521
522 if (((tmp + fcs) & 0xff) != 0xff) {
523 BT_ERR("Checksum error in firmware");
524 err = -EILSEQ;
525 goto error;
526 }
527
528 if (ptr[1] == '3') {
529 bt3c_address(iobase, addr);
530
531 memset(b, 0, sizeof(b));
532 for (i = 0; i < (size - 4) / 2; i++) {
533 memcpy(b, ptr + (i * 4) + 12, 4);
534 tmp = simple_strtol(b, NULL, 16);
535 bt3c_put(iobase, tmp);
536 }
537 }
538
539 ptr += (size * 2) + 6;
540 count -= (size * 2) + 6;
541 }
542
543 udelay(17);
544
545 /* Boot */
546 bt3c_address(iobase, 0x3000);
547 outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL);
548
549error:
550 udelay(17);
551
552 /* Clear */
553 bt3c_io_write(iobase, 0x7006, 0x0000);
554 bt3c_io_write(iobase, 0x7005, 0x0000);
555 bt3c_io_write(iobase, 0x7001, 0x0000);
556
557 return err;
558}
559
560
561static int bt3c_open(bt3c_info_t *info)
562{
563 const struct firmware *firmware;
564 struct hci_dev *hdev;
92258063 565 client_handle_t handle;
1da177e4
LT		 566 int err;
567
568 spin_lock_init(&(info->lock));
569
570 skb_queue_head_init(&(info->txq));
571
572 info->rx_state = RECV_WAIT_PACKET_TYPE;
573 info->rx_count = 0;
574 info->rx_skb = NULL;
575
576 /* Initialize HCI device */
577 hdev = hci_alloc_dev();
578 if (!hdev) {
579 BT_ERR("Can't allocate HCI device");
580 return -ENOMEM;
581 }
582
583 info->hdev = hdev;
584
585 hdev->type = HCI_PCCARD;
586 hdev->driver_data = info;
587
588 hdev->open = bt3c_hci_open;
589 hdev->close = bt3c_hci_close;
590 hdev->flush = bt3c_hci_flush;
591 hdev->send = bt3c_hci_send_frame;
592 hdev->destruct = bt3c_hci_destruct;
593 hdev->ioctl = bt3c_hci_ioctl;
594
595 hdev->owner = THIS_MODULE;
596
92258063
MH		 597 handle = info->link.handle;
598
1da177e4 599 /* Load firmware */
92258063 600 err = request_firmware(&firmware, "BT3CPCC.bin", &handle_to_dev(handle));
1da177e4
LT		 601 if (err < 0) {
602 BT_ERR("Firmware request failed");
603 goto error;
604 }
605
606 err = bt3c_load_firmware(info, firmware->data, firmware->size);
607
608 release_firmware(firmware);
609
610 if (err < 0) {
611 BT_ERR("Firmware loading failed");
612 goto error;
613 }
614
615 /* Timeout before it is safe to send the first HCI packet */
616 msleep(1000);
617
618 /* Register HCI device */
619 err = hci_register_dev(hdev);
620 if (err < 0) {
621 BT_ERR("Can't register HCI device");
622 goto error;
623 }
624
625 return 0;
626
627error:
628 info->hdev = NULL;
629 hci_free_dev(hdev);
630 return err;
631}
632
633
634static int bt3c_close(bt3c_info_t *info)
635{
636 struct hci_dev *hdev = info->hdev;
637
638 if (!hdev)
639 return -ENODEV;
640
641 bt3c_hci_close(hdev);
642
643 if (hci_unregister_dev(hdev) < 0)
644 BT_ERR("Can't unregister HCI device %s", hdev->name);
645
646 hci_free_dev(hdev);
647
648 return 0;
649}
650
f8cfa618 651static int bt3c_attach(struct pcmcia_device *p_dev)
1da177e4
LT		 652{
653 bt3c_info_t *info;
1da177e4 654 dev_link_t *link;
1da177e4
LT		 655
656 /* Create new info device */
089b1dbb 657 info = kzalloc(sizeof(*info), GFP_KERNEL);
1da177e4 658 if (!info)
f8cfa618 659 return -ENOMEM;
1da177e4
LT		 660
661 link = &info->link;
662 link->priv = info;
663
664 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
665 link->io.NumPorts1 = 8;
666 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
667 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
668
669 link->irq.Handler = bt3c_interrupt;
670 link->irq.Instance = info;
671
672 link->conf.Attributes = CONF_ENABLE_IRQ;
673 link->conf.Vcc = 50;
674 link->conf.IntType = INT_MEMORY_AND_IO;
675
f8cfa618
DB		 676 link->handle = p_dev;
677 p_dev->instance = link;
1da177e4 678
f8cfa618
DB		 679 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
680 bt3c_config(link);
681
682 return 0;
1da177e4
LT		 683}
684
685
cc3b4866 686static void bt3c_detach(struct pcmcia_device *p_dev)
1da177e4 687{
cc3b4866 688 dev_link_t *link = dev_to_instance(p_dev);
1da177e4 689 bt3c_info_t *info = link->priv;
1da177e4
LT		 690
691 if (link->state & DEV_CONFIG)
692 bt3c_release(link);
693
1da177e4
LT		 694 kfree(info);
695}
696
697static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
698{
699 int i;
700
701 i = pcmcia_get_tuple_data(handle, tuple);
702 if (i != CS_SUCCESS)
703 return i;
704
705 return pcmcia_parse_tuple(handle, tuple, parse);
706}
707
708static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
709{
710 if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS)
711 return CS_NO_MORE_ITEMS;
712 return get_tuple(handle, tuple, parse);
713}
714
715static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
716{
717 if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS)
718 return CS_NO_MORE_ITEMS;
719 return get_tuple(handle, tuple, parse);
720}
721
722static void bt3c_config(dev_link_t *link)
723{
724 static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
725 client_handle_t handle = link->handle;
726 bt3c_info_t *info = link->priv;
727 tuple_t tuple;
728 u_short buf[256];
729 cisparse_t parse;
730 cistpl_cftable_entry_t *cf = &parse.cftable_entry;
731 config_info_t config;
732 int i, j, try, last_ret, last_fn;
733
734 tuple.TupleData = (cisdata_t *)buf;
735 tuple.TupleOffset = 0;
736 tuple.TupleDataMax = 255;
737 tuple.Attributes = 0;
738
739 /* Get configuration register information */
740 tuple.DesiredTuple = CISTPL_CONFIG;
741 last_ret = first_tuple(handle, &tuple, &parse);
742 if (last_ret != CS_SUCCESS) {
743 last_fn = ParseTuple;
744 goto cs_failed;
745 }
746 link->conf.ConfigBase = parse.config.base;
747 link->conf.Present = parse.config.rmask[0];
748
749 /* Configure card */
750 link->state |= DEV_CONFIG;
751 i = pcmcia_get_configuration_info(handle, &config);
752 link->conf.Vcc = config.Vcc;
753
754 /* First pass: look for a config entry that looks normal. */
755 tuple.TupleData = (cisdata_t *)buf;
756 tuple.TupleOffset = 0;
757 tuple.TupleDataMax = 255;
758 tuple.Attributes = 0;
759 tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
760 /* Two tries: without IO aliases, then with aliases */
761 for (try = 0; try < 2; try++) {
762 i = first_tuple(handle, &tuple, &parse);
763 while (i != CS_NO_MORE_ITEMS) {
764 if (i != CS_SUCCESS)
765 goto next_entry;
766 if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM))
767 link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000;
768 if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) {
769 link->conf.ConfigIndex = cf->index;
770 link->io.BasePort1 = cf->io.win[0].base;
771 link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
772 i = pcmcia_request_io(link->handle, &link->io);
773 if (i == CS_SUCCESS)
774 goto found_port;
775 }
776next_entry:
777 i = next_tuple(handle, &tuple, &parse);
778 }
779 }
780
781 /* Second pass: try to find an entry that isn't picky about
782 its base address, then try to grab any standard serial port
783 address, and finally try to get any free port. */
784 i = first_tuple(handle, &tuple, &parse);
785 while (i != CS_NO_MORE_ITEMS) {
786 if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
787 link->conf.ConfigIndex = cf->index;
788 for (j = 0; j < 5; j++) {
789 link->io.BasePort1 = base[j];
790 link->io.IOAddrLines = base[j] ? 16 : 3;
791 i = pcmcia_request_io(link->handle, &link->io);
792 if (i == CS_SUCCESS)
793 goto found_port;
794 }
795 }
796 i = next_tuple(handle, &tuple, &parse);
797 }
798
799found_port:
800 if (i != CS_SUCCESS) {
801 BT_ERR("No usable port range found");
802 cs_error(link->handle, RequestIO, i);
803 goto failed;
804 }
805
806 i = pcmcia_request_irq(link->handle, &link->irq);
807 if (i != CS_SUCCESS) {
808 cs_error(link->handle, RequestIRQ, i);
809 link->irq.AssignedIRQ = 0;
810 }
811
812 i = pcmcia_request_configuration(link->handle, &link->conf);
813 if (i != CS_SUCCESS) {
814 cs_error(link->handle, RequestConfiguration, i);
815 goto failed;
816 }
817
818 if (bt3c_open(info) != 0)
819 goto failed;
820
821 strcpy(info->node.dev_name, info->hdev->name);
822 link->dev = &info->node;
823 link->state &= ~DEV_CONFIG_PENDING;
824
825 return;
826
827cs_failed:
828 cs_error(link->handle, last_fn, last_ret);
829
830failed:
831 bt3c_release(link);
832}
833
834
835static void bt3c_release(dev_link_t *link)
836{
837 bt3c_info_t *info = link->priv;
838
839 if (link->state & DEV_PRESENT)
840 bt3c_close(info);
841
842 link->dev = NULL;
843
844 pcmcia_release_configuration(link->handle);
845 pcmcia_release_io(link->handle, &link->io);
846 pcmcia_release_irq(link->handle, &link->irq);
847
848 link->state &= ~DEV_CONFIG;
849}
850
98e4c28b
DB		 851static int bt3c_suspend(struct pcmcia_device *dev)
852{
853 dev_link_t *link = dev_to_instance(dev);
854
855 link->state |= DEV_SUSPEND;
856 if (link->state & DEV_CONFIG)
857 pcmcia_release_configuration(link->handle);
858
859 return 0;
860}
861
862static int bt3c_resume(struct pcmcia_device *dev)
863{
864 dev_link_t *link = dev_to_instance(dev);
865
866 link->state &= ~DEV_SUSPEND;
867 if (DEV_OK(link))
868 pcmcia_request_configuration(link->handle, &link->conf);
869
870 return 0;
871}
1da177e4 872
1da177e4 873
a01c3ed4
DB		 874static struct pcmcia_device_id bt3c_ids[] = {
875 PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02),
876 PCMCIA_DEVICE_NULL
877};
878MODULE_DEVICE_TABLE(pcmcia, bt3c_ids);
879
1da177e4
LT		 880static struct pcmcia_driver bt3c_driver = {
881 .owner = THIS_MODULE,
882 .drv = {
883 .name = "bt3c_cs",
884 },
f8cfa618 885 .probe = bt3c_attach,
cc3b4866 886 .remove = bt3c_detach,
a01c3ed4 887 .id_table = bt3c_ids,
98e4c28b
DB		 888 .suspend = bt3c_suspend,
889 .resume = bt3c_resume,
1da177e4
LT		 890};
891
892static int __init init_bt3c_cs(void)
893{
894 return pcmcia_register_driver(&bt3c_driver);
895}
896
897
898static void __exit exit_bt3c_cs(void)
899{
900 pcmcia_unregister_driver(&bt3c_driver);
1da177e4
LT		 901}
902
903module_init(init_bt3c_cs);
904module_exit(exit_bt3c_cs);
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