1 | /* |
2 | * |
3 | * Driver for the 3Com Bluetooth PCMCIA card |
4 | * |
5 | * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org> |
6 | * Jose Orlando Pereira <jop@di.uminho.pt> |
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 | * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds |
20 | * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. |
21 | * |
22 | */ |
23 | |
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/delay.h> |
31 | #include <linux/errno.h> |
32 | #include <linux/ptrace.h> |
33 | #include <linux/ioport.h> |
34 | #include <linux/spinlock.h> |
35 | #include <linux/moduleparam.h> |
36 | |
37 | #include <linux/skbuff.h> |
38 | #include <linux/string.h> |
39 | #include <linux/serial.h> |
40 | #include <linux/serial_reg.h> |
41 | #include <linux/bitops.h> |
42 | #include <asm/io.h> |
43 | |
44 | #include <linux/device.h> |
45 | #include <linux/firmware.h> |
46 | |
47 | #include <pcmcia/cistpl.h> |
48 | #include <pcmcia/ciscode.h> |
49 | #include <pcmcia/ds.h> |
50 | #include <pcmcia/cisreg.h> |
51 | |
52 | #include <net/bluetooth/bluetooth.h> |
53 | #include <net/bluetooth/hci_core.h> |
54 | |
55 | |
56 | |
57 | /* ======================== Module parameters ======================== */ |
58 | |
59 | |
60 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>" ); |
61 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card" ); |
62 | MODULE_LICENSE("GPL" ); |
63 | MODULE_FIRMWARE("BT3CPCC.bin" ); |
64 | |
65 | |
66 | |
67 | /* ======================== Local structures ======================== */ |
68 | |
69 | |
70 | struct bt3c_info { |
71 | struct pcmcia_device *p_dev; |
72 | |
73 | struct hci_dev *hdev; |
74 | |
75 | spinlock_t lock; /* For serializing operations */ |
76 | |
77 | struct sk_buff_head txq; |
78 | unsigned long tx_state; |
79 | |
80 | unsigned long rx_state; |
81 | unsigned long rx_count; |
82 | struct sk_buff *rx_skb; |
83 | }; |
84 | |
85 | |
86 | static int bt3c_config(struct pcmcia_device *link); |
87 | static void bt3c_release(struct pcmcia_device *link); |
88 | |
89 | static void bt3c_detach(struct pcmcia_device *p_dev); |
90 | |
91 | |
92 | /* Transmit states */ |
93 | #define XMIT_SENDING 1 |
94 | #define XMIT_WAKEUP 2 |
95 | #define XMIT_WAITING 8 |
96 | |
97 | /* Receiver states */ |
98 | #define RECV_WAIT_PACKET_TYPE 0 |
99 | #define 1 |
100 | #define 2 |
101 | #define 3 |
102 | #define RECV_WAIT_DATA 4 |
103 | |
104 | |
105 | |
106 | /* ======================== Special I/O functions ======================== */ |
107 | |
108 | |
109 | #define DATA_L 0 |
110 | #define DATA_H 1 |
111 | #define ADDR_L 2 |
112 | #define ADDR_H 3 |
113 | #define CONTROL 4 |
114 | |
115 | |
116 | static inline void bt3c_address(unsigned int iobase, unsigned short addr) |
117 | { |
118 | outb(value: addr & 0xff, port: iobase + ADDR_L); |
119 | outb(value: (addr >> 8) & 0xff, port: iobase + ADDR_H); |
120 | } |
121 | |
122 | |
123 | static inline void bt3c_put(unsigned int iobase, unsigned short value) |
124 | { |
125 | outb(value: value & 0xff, port: iobase + DATA_L); |
126 | outb(value: (value >> 8) & 0xff, port: iobase + DATA_H); |
127 | } |
128 | |
129 | |
130 | static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) |
131 | { |
132 | bt3c_address(iobase, addr); |
133 | bt3c_put(iobase, value); |
134 | } |
135 | |
136 | |
137 | static inline unsigned short bt3c_get(unsigned int iobase) |
138 | { |
139 | unsigned short value = inb(port: iobase + DATA_L); |
140 | |
141 | value |= inb(port: iobase + DATA_H) << 8; |
142 | |
143 | return value; |
144 | } |
145 | |
146 | |
147 | static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) |
148 | { |
149 | bt3c_address(iobase, addr); |
150 | |
151 | return bt3c_get(iobase); |
152 | } |
153 | |
154 | |
155 | |
156 | /* ======================== Interrupt handling ======================== */ |
157 | |
158 | |
159 | static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) |
160 | { |
161 | int actual = 0; |
162 | |
163 | bt3c_address(iobase, addr: 0x7080); |
164 | |
165 | /* Fill FIFO with current frame */ |
166 | while (actual < len) { |
167 | /* Transmit next byte */ |
168 | bt3c_put(iobase, value: buf[actual]); |
169 | actual++; |
170 | } |
171 | |
172 | bt3c_io_write(iobase, addr: 0x7005, value: actual); |
173 | |
174 | return actual; |
175 | } |
176 | |
177 | |
178 | static void bt3c_write_wakeup(struct bt3c_info *info) |
179 | { |
180 | if (!info) { |
181 | BT_ERR("Unknown device" ); |
182 | return; |
183 | } |
184 | |
185 | if (test_and_set_bit(XMIT_SENDING, addr: &(info->tx_state))) |
186 | return; |
187 | |
188 | do { |
189 | unsigned int iobase = info->p_dev->resource[0]->start; |
190 | register struct sk_buff *skb; |
191 | int len; |
192 | |
193 | if (!pcmcia_dev_present(p_dev: info->p_dev)) |
194 | break; |
195 | |
196 | skb = skb_dequeue(list: &(info->txq)); |
197 | if (!skb) { |
198 | clear_bit(XMIT_SENDING, addr: &(info->tx_state)); |
199 | break; |
200 | } |
201 | |
202 | /* Send frame */ |
203 | len = bt3c_write(iobase, fifo_size: 256, buf: skb->data, len: skb->len); |
204 | |
205 | if (len != skb->len) |
206 | BT_ERR("Very strange" ); |
207 | |
208 | kfree_skb(skb); |
209 | |
210 | info->hdev->stat.byte_tx += len; |
211 | |
212 | } while (0); |
213 | } |
214 | |
215 | |
216 | static void bt3c_receive(struct bt3c_info *info) |
217 | { |
218 | unsigned int iobase; |
219 | int size = 0, avail; |
220 | |
221 | if (!info) { |
222 | BT_ERR("Unknown device" ); |
223 | return; |
224 | } |
225 | |
226 | iobase = info->p_dev->resource[0]->start; |
227 | |
228 | avail = bt3c_read(iobase, addr: 0x7006); |
229 | |
230 | bt3c_address(iobase, addr: 0x7480); |
231 | while (size < avail) { |
232 | size++; |
233 | info->hdev->stat.byte_rx++; |
234 | |
235 | /* Allocate packet */ |
236 | if (!info->rx_skb) { |
237 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
238 | info->rx_count = 0; |
239 | info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
240 | if (!info->rx_skb) { |
241 | BT_ERR("Can't allocate mem for new packet" ); |
242 | return; |
243 | } |
244 | } |
245 | |
246 | |
247 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { |
248 | |
249 | hci_skb_pkt_type(info->rx_skb) = inb(port: iobase + DATA_L); |
250 | inb(port: iobase + DATA_H); |
251 | |
252 | switch (hci_skb_pkt_type(info->rx_skb)) { |
253 | |
254 | case HCI_EVENT_PKT: |
255 | info->rx_state = RECV_WAIT_EVENT_HEADER; |
256 | info->rx_count = HCI_EVENT_HDR_SIZE; |
257 | break; |
258 | |
259 | case HCI_ACLDATA_PKT: |
260 | info->rx_state = RECV_WAIT_ACL_HEADER; |
261 | info->rx_count = HCI_ACL_HDR_SIZE; |
262 | break; |
263 | |
264 | case HCI_SCODATA_PKT: |
265 | info->rx_state = RECV_WAIT_SCO_HEADER; |
266 | info->rx_count = HCI_SCO_HDR_SIZE; |
267 | break; |
268 | |
269 | default: |
270 | /* Unknown packet */ |
271 | BT_ERR("Unknown HCI packet with type 0x%02x received" , |
272 | hci_skb_pkt_type(info->rx_skb)); |
273 | info->hdev->stat.err_rx++; |
274 | |
275 | kfree_skb(skb: info->rx_skb); |
276 | info->rx_skb = NULL; |
277 | break; |
278 | |
279 | } |
280 | |
281 | } else { |
282 | |
283 | __u8 x = inb(port: iobase + DATA_L); |
284 | |
285 | skb_put_u8(skb: info->rx_skb, val: x); |
286 | inb(port: iobase + DATA_H); |
287 | info->rx_count--; |
288 | |
289 | if (info->rx_count == 0) { |
290 | |
291 | int dlen; |
292 | struct hci_event_hdr *eh; |
293 | struct hci_acl_hdr *ah; |
294 | struct hci_sco_hdr *sh; |
295 | |
296 | switch (info->rx_state) { |
297 | |
298 | case RECV_WAIT_EVENT_HEADER: |
299 | eh = hci_event_hdr(skb: info->rx_skb); |
300 | info->rx_state = RECV_WAIT_DATA; |
301 | info->rx_count = eh->plen; |
302 | break; |
303 | |
304 | case RECV_WAIT_ACL_HEADER: |
305 | ah = hci_acl_hdr(skb: info->rx_skb); |
306 | dlen = __le16_to_cpu(ah->dlen); |
307 | info->rx_state = RECV_WAIT_DATA; |
308 | info->rx_count = dlen; |
309 | break; |
310 | |
311 | case RECV_WAIT_SCO_HEADER: |
312 | sh = hci_sco_hdr(skb: info->rx_skb); |
313 | info->rx_state = RECV_WAIT_DATA; |
314 | info->rx_count = sh->dlen; |
315 | break; |
316 | |
317 | case RECV_WAIT_DATA: |
318 | hci_recv_frame(hdev: info->hdev, skb: info->rx_skb); |
319 | info->rx_skb = NULL; |
320 | break; |
321 | |
322 | } |
323 | |
324 | } |
325 | |
326 | } |
327 | |
328 | } |
329 | |
330 | bt3c_io_write(iobase, addr: 0x7006, value: 0x0000); |
331 | } |
332 | |
333 | |
334 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) |
335 | { |
336 | struct bt3c_info *info = dev_inst; |
337 | unsigned int iobase; |
338 | int iir; |
339 | irqreturn_t r = IRQ_NONE; |
340 | |
341 | if (!info || !info->hdev) |
342 | /* our irq handler is shared */ |
343 | return IRQ_NONE; |
344 | |
345 | iobase = info->p_dev->resource[0]->start; |
346 | |
347 | spin_lock(lock: &(info->lock)); |
348 | |
349 | iir = inb(port: iobase + CONTROL); |
350 | if (iir & 0x80) { |
351 | int stat = bt3c_read(iobase, addr: 0x7001); |
352 | |
353 | if ((stat & 0xff) == 0x7f) { |
354 | BT_ERR("Very strange (stat=0x%04x)" , stat); |
355 | } else if ((stat & 0xff) != 0xff) { |
356 | if (stat & 0x0020) { |
357 | int status = bt3c_read(iobase, addr: 0x7002) & 0x10; |
358 | bt_dev_info(info->hdev, "Antenna %s" , |
359 | status ? "out" : "in" ); |
360 | } |
361 | if (stat & 0x0001) |
362 | bt3c_receive(info); |
363 | if (stat & 0x0002) { |
364 | clear_bit(XMIT_SENDING, addr: &(info->tx_state)); |
365 | bt3c_write_wakeup(info); |
366 | } |
367 | |
368 | bt3c_io_write(iobase, addr: 0x7001, value: 0x0000); |
369 | |
370 | outb(value: iir, port: iobase + CONTROL); |
371 | } |
372 | r = IRQ_HANDLED; |
373 | } |
374 | |
375 | spin_unlock(lock: &(info->lock)); |
376 | |
377 | return r; |
378 | } |
379 | |
380 | |
381 | |
382 | /* ======================== HCI interface ======================== */ |
383 | |
384 | |
385 | static int bt3c_hci_flush(struct hci_dev *hdev) |
386 | { |
387 | struct bt3c_info *info = hci_get_drvdata(hdev); |
388 | |
389 | /* Drop TX queue */ |
390 | skb_queue_purge(list: &(info->txq)); |
391 | |
392 | return 0; |
393 | } |
394 | |
395 | |
396 | static int bt3c_hci_open(struct hci_dev *hdev) |
397 | { |
398 | return 0; |
399 | } |
400 | |
401 | |
402 | static int bt3c_hci_close(struct hci_dev *hdev) |
403 | { |
404 | bt3c_hci_flush(hdev); |
405 | |
406 | return 0; |
407 | } |
408 | |
409 | |
410 | static int bt3c_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
411 | { |
412 | struct bt3c_info *info = hci_get_drvdata(hdev); |
413 | unsigned long flags; |
414 | |
415 | switch (hci_skb_pkt_type(skb)) { |
416 | case HCI_COMMAND_PKT: |
417 | hdev->stat.cmd_tx++; |
418 | break; |
419 | case HCI_ACLDATA_PKT: |
420 | hdev->stat.acl_tx++; |
421 | break; |
422 | case HCI_SCODATA_PKT: |
423 | hdev->stat.sco_tx++; |
424 | break; |
425 | } |
426 | |
427 | /* Prepend skb with frame type */ |
428 | memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); |
429 | skb_queue_tail(list: &(info->txq), newsk: skb); |
430 | |
431 | spin_lock_irqsave(&(info->lock), flags); |
432 | |
433 | bt3c_write_wakeup(info); |
434 | |
435 | spin_unlock_irqrestore(lock: &(info->lock), flags); |
436 | |
437 | return 0; |
438 | } |
439 | |
440 | |
441 | |
442 | /* ======================== Card services HCI interaction ======================== */ |
443 | |
444 | |
445 | static int bt3c_load_firmware(struct bt3c_info *info, |
446 | const unsigned char *firmware, |
447 | int count) |
448 | { |
449 | char *ptr = (char *) firmware; |
450 | char b[9]; |
451 | unsigned int iobase, tmp, tn; |
452 | unsigned long size, addr, fcs; |
453 | int i, err = 0; |
454 | |
455 | iobase = info->p_dev->resource[0]->start; |
456 | |
457 | /* Reset */ |
458 | bt3c_io_write(iobase, addr: 0x8040, value: 0x0404); |
459 | bt3c_io_write(iobase, addr: 0x8040, value: 0x0400); |
460 | |
461 | udelay(1); |
462 | |
463 | bt3c_io_write(iobase, addr: 0x8040, value: 0x0404); |
464 | |
465 | udelay(17); |
466 | |
467 | /* Load */ |
468 | while (count) { |
469 | if (ptr[0] != 'S') { |
470 | BT_ERR("Bad address in firmware" ); |
471 | err = -EFAULT; |
472 | goto error; |
473 | } |
474 | |
475 | memset(b, 0, sizeof(b)); |
476 | memcpy(b, ptr + 2, 2); |
477 | if (kstrtoul(s: b, base: 16, res: &size) < 0) |
478 | return -EINVAL; |
479 | |
480 | memset(b, 0, sizeof(b)); |
481 | memcpy(b, ptr + 4, 8); |
482 | if (kstrtoul(s: b, base: 16, res: &addr) < 0) |
483 | return -EINVAL; |
484 | |
485 | memset(b, 0, sizeof(b)); |
486 | memcpy(b, ptr + (size * 2) + 2, 2); |
487 | if (kstrtoul(s: b, base: 16, res: &fcs) < 0) |
488 | return -EINVAL; |
489 | |
490 | memset(b, 0, sizeof(b)); |
491 | for (tmp = 0, i = 0; i < size; i++) { |
492 | memcpy(b, ptr + (i * 2) + 2, 2); |
493 | if (kstrtouint(s: b, base: 16, res: &tn)) |
494 | return -EINVAL; |
495 | tmp += tn; |
496 | } |
497 | |
498 | if (((tmp + fcs) & 0xff) != 0xff) { |
499 | BT_ERR("Checksum error in firmware" ); |
500 | err = -EILSEQ; |
501 | goto error; |
502 | } |
503 | |
504 | if (ptr[1] == '3') { |
505 | bt3c_address(iobase, addr); |
506 | |
507 | memset(b, 0, sizeof(b)); |
508 | for (i = 0; i < (size - 4) / 2; i++) { |
509 | memcpy(b, ptr + (i * 4) + 12, 4); |
510 | if (kstrtouint(s: b, base: 16, res: &tmp)) |
511 | return -EINVAL; |
512 | bt3c_put(iobase, value: tmp); |
513 | } |
514 | } |
515 | |
516 | ptr += (size * 2) + 6; |
517 | count -= (size * 2) + 6; |
518 | } |
519 | |
520 | udelay(17); |
521 | |
522 | /* Boot */ |
523 | bt3c_address(iobase, addr: 0x3000); |
524 | outb(inb(port: iobase + CONTROL) | 0x40, port: iobase + CONTROL); |
525 | |
526 | error: |
527 | udelay(17); |
528 | |
529 | /* Clear */ |
530 | bt3c_io_write(iobase, addr: 0x7006, value: 0x0000); |
531 | bt3c_io_write(iobase, addr: 0x7005, value: 0x0000); |
532 | bt3c_io_write(iobase, addr: 0x7001, value: 0x0000); |
533 | |
534 | return err; |
535 | } |
536 | |
537 | |
538 | static int bt3c_open(struct bt3c_info *info) |
539 | { |
540 | const struct firmware *firmware; |
541 | struct hci_dev *hdev; |
542 | int err; |
543 | |
544 | spin_lock_init(&(info->lock)); |
545 | |
546 | skb_queue_head_init(list: &(info->txq)); |
547 | |
548 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
549 | info->rx_count = 0; |
550 | info->rx_skb = NULL; |
551 | |
552 | /* Initialize HCI device */ |
553 | hdev = hci_alloc_dev(); |
554 | if (!hdev) { |
555 | BT_ERR("Can't allocate HCI device" ); |
556 | return -ENOMEM; |
557 | } |
558 | |
559 | info->hdev = hdev; |
560 | |
561 | hdev->bus = HCI_PCCARD; |
562 | hci_set_drvdata(hdev, data: info); |
563 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
564 | |
565 | hdev->open = bt3c_hci_open; |
566 | hdev->close = bt3c_hci_close; |
567 | hdev->flush = bt3c_hci_flush; |
568 | hdev->send = bt3c_hci_send_frame; |
569 | |
570 | /* Load firmware */ |
571 | err = request_firmware(fw: &firmware, name: "BT3CPCC.bin" , device: &info->p_dev->dev); |
572 | if (err < 0) { |
573 | BT_ERR("Firmware request failed" ); |
574 | goto error; |
575 | } |
576 | |
577 | err = bt3c_load_firmware(info, firmware: firmware->data, count: firmware->size); |
578 | |
579 | release_firmware(fw: firmware); |
580 | |
581 | if (err < 0) { |
582 | BT_ERR("Firmware loading failed" ); |
583 | goto error; |
584 | } |
585 | |
586 | /* Timeout before it is safe to send the first HCI packet */ |
587 | msleep(msecs: 1000); |
588 | |
589 | /* Register HCI device */ |
590 | err = hci_register_dev(hdev); |
591 | if (err < 0) { |
592 | BT_ERR("Can't register HCI device" ); |
593 | goto error; |
594 | } |
595 | |
596 | return 0; |
597 | |
598 | error: |
599 | info->hdev = NULL; |
600 | hci_free_dev(hdev); |
601 | return err; |
602 | } |
603 | |
604 | |
605 | static int bt3c_close(struct bt3c_info *info) |
606 | { |
607 | struct hci_dev *hdev = info->hdev; |
608 | |
609 | if (!hdev) |
610 | return -ENODEV; |
611 | |
612 | bt3c_hci_close(hdev); |
613 | |
614 | hci_unregister_dev(hdev); |
615 | hci_free_dev(hdev); |
616 | |
617 | return 0; |
618 | } |
619 | |
620 | static int bt3c_probe(struct pcmcia_device *link) |
621 | { |
622 | struct bt3c_info *info; |
623 | |
624 | /* Create new info device */ |
625 | info = devm_kzalloc(dev: &link->dev, size: sizeof(*info), GFP_KERNEL); |
626 | if (!info) |
627 | return -ENOMEM; |
628 | |
629 | info->p_dev = link; |
630 | link->priv = info; |
631 | |
632 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | |
633 | CONF_AUTO_SET_IO; |
634 | |
635 | return bt3c_config(link); |
636 | } |
637 | |
638 | |
639 | static void bt3c_detach(struct pcmcia_device *link) |
640 | { |
641 | bt3c_release(link); |
642 | } |
643 | |
644 | static int bt3c_check_config(struct pcmcia_device *p_dev, void *priv_data) |
645 | { |
646 | int *try = priv_data; |
647 | |
648 | if (!try) |
649 | p_dev->io_lines = 16; |
650 | |
651 | if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0)) |
652 | return -EINVAL; |
653 | |
654 | p_dev->resource[0]->end = 8; |
655 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; |
656 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
657 | |
658 | return pcmcia_request_io(p_dev); |
659 | } |
660 | |
661 | static int bt3c_check_config_notpicky(struct pcmcia_device *p_dev, |
662 | void *priv_data) |
663 | { |
664 | static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; |
665 | int j; |
666 | |
667 | if (p_dev->io_lines > 3) |
668 | return -ENODEV; |
669 | |
670 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; |
671 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
672 | p_dev->resource[0]->end = 8; |
673 | |
674 | for (j = 0; j < 5; j++) { |
675 | p_dev->resource[0]->start = base[j]; |
676 | p_dev->io_lines = base[j] ? 16 : 3; |
677 | if (!pcmcia_request_io(p_dev)) |
678 | return 0; |
679 | } |
680 | return -ENODEV; |
681 | } |
682 | |
683 | static int bt3c_config(struct pcmcia_device *link) |
684 | { |
685 | struct bt3c_info *info = link->priv; |
686 | int i; |
687 | unsigned long try; |
688 | |
689 | /* First pass: look for a config entry that looks normal. |
690 | * Two tries: without IO aliases, then with aliases |
691 | */ |
692 | for (try = 0; try < 2; try++) |
693 | if (!pcmcia_loop_config(p_dev: link, conf_check: bt3c_check_config, priv_data: (void *) try)) |
694 | goto found_port; |
695 | |
696 | /* Second pass: try to find an entry that isn't picky about |
697 | * its base address, then try to grab any standard serial port |
698 | * address, and finally try to get any free port. |
699 | */ |
700 | if (!pcmcia_loop_config(p_dev: link, conf_check: bt3c_check_config_notpicky, NULL)) |
701 | goto found_port; |
702 | |
703 | BT_ERR("No usable port range found" ); |
704 | goto failed; |
705 | |
706 | found_port: |
707 | i = pcmcia_request_irq(p_dev: link, handler: &bt3c_interrupt); |
708 | if (i != 0) |
709 | goto failed; |
710 | |
711 | i = pcmcia_enable_device(p_dev: link); |
712 | if (i != 0) |
713 | goto failed; |
714 | |
715 | if (bt3c_open(info) != 0) |
716 | goto failed; |
717 | |
718 | return 0; |
719 | |
720 | failed: |
721 | bt3c_release(link); |
722 | return -ENODEV; |
723 | } |
724 | |
725 | |
726 | static void bt3c_release(struct pcmcia_device *link) |
727 | { |
728 | struct bt3c_info *info = link->priv; |
729 | |
730 | bt3c_close(info); |
731 | |
732 | pcmcia_disable_device(p_dev: link); |
733 | } |
734 | |
735 | |
736 | static const struct pcmcia_device_id bt3c_ids[] = { |
737 | PCMCIA_DEVICE_PROD_ID13("3COM" , "Bluetooth PC Card" , 0xefce0a31, 0xd4ce9b02), |
738 | PCMCIA_DEVICE_NULL |
739 | }; |
740 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); |
741 | |
742 | static struct pcmcia_driver bt3c_driver = { |
743 | .owner = THIS_MODULE, |
744 | .name = "bt3c_cs" , |
745 | .probe = bt3c_probe, |
746 | .remove = bt3c_detach, |
747 | .id_table = bt3c_ids, |
748 | }; |
749 | module_pcmcia_driver(bt3c_driver); |
750 | |