Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | ||
1da177e4 LT |
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> | |
1da177e4 LT |
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/system.h> | |
43 | #include <asm/io.h> | |
44 | ||
45 | #include <linux/device.h> | |
46 | #include <linux/firmware.h> | |
47 | ||
1da177e4 LT |
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 | ||
63fbd24e | 61 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1da177e4 LT |
62 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card"); |
63 | MODULE_LICENSE("GPL"); | |
2312119a | 64 | MODULE_FIRMWARE("BT3CPCC.bin"); |
1da177e4 LT |
65 | |
66 | ||
67 | ||
68 | /* ======================== Local structures ======================== */ | |
69 | ||
70 | ||
71 | typedef struct bt3c_info_t { | |
fd238232 | 72 | struct pcmcia_device *p_dev; |
1da177e4 LT |
73 | |
74 | struct hci_dev *hdev; | |
75 | ||
76 | spinlock_t lock; /* For serializing operations */ | |
77 | ||
78 | struct sk_buff_head txq; | |
79 | unsigned long tx_state; | |
80 | ||
81 | unsigned long rx_state; | |
82 | unsigned long rx_count; | |
83 | struct sk_buff *rx_skb; | |
84 | } bt3c_info_t; | |
85 | ||
86 | ||
15b99ac1 | 87 | static int bt3c_config(struct pcmcia_device *link); |
fba395ee | 88 | static void bt3c_release(struct pcmcia_device *link); |
1da177e4 | 89 | |
cc3b4866 | 90 | static void bt3c_detach(struct pcmcia_device *p_dev); |
1da177e4 | 91 | |
1da177e4 LT |
92 | |
93 | /* Transmit states */ | |
94 | #define XMIT_SENDING 1 | |
95 | #define XMIT_WAKEUP 2 | |
96 | #define XMIT_WAITING 8 | |
97 | ||
98 | /* Receiver states */ | |
99 | #define RECV_WAIT_PACKET_TYPE 0 | |
100 | #define RECV_WAIT_EVENT_HEADER 1 | |
101 | #define RECV_WAIT_ACL_HEADER 2 | |
102 | #define RECV_WAIT_SCO_HEADER 3 | |
103 | #define RECV_WAIT_DATA 4 | |
104 | ||
105 | ||
106 | ||
107 | /* ======================== Special I/O functions ======================== */ | |
108 | ||
109 | ||
110 | #define DATA_L 0 | |
111 | #define DATA_H 1 | |
112 | #define ADDR_L 2 | |
113 | #define ADDR_H 3 | |
114 | #define CONTROL 4 | |
115 | ||
116 | ||
117 | static inline void bt3c_address(unsigned int iobase, unsigned short addr) | |
118 | { | |
119 | outb(addr & 0xff, iobase + ADDR_L); | |
120 | outb((addr >> 8) & 0xff, iobase + ADDR_H); | |
121 | } | |
122 | ||
123 | ||
124 | static inline void bt3c_put(unsigned int iobase, unsigned short value) | |
125 | { | |
126 | outb(value & 0xff, iobase + DATA_L); | |
127 | outb((value >> 8) & 0xff, iobase + DATA_H); | |
128 | } | |
129 | ||
130 | ||
131 | static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) | |
132 | { | |
133 | bt3c_address(iobase, addr); | |
134 | bt3c_put(iobase, value); | |
135 | } | |
136 | ||
137 | ||
138 | static inline unsigned short bt3c_get(unsigned int iobase) | |
139 | { | |
140 | unsigned short value = inb(iobase + DATA_L); | |
141 | ||
142 | value |= inb(iobase + DATA_H) << 8; | |
143 | ||
144 | return value; | |
145 | } | |
146 | ||
147 | ||
148 | static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) | |
149 | { | |
150 | bt3c_address(iobase, addr); | |
151 | ||
152 | return bt3c_get(iobase); | |
153 | } | |
154 | ||
155 | ||
156 | ||
157 | /* ======================== Interrupt handling ======================== */ | |
158 | ||
159 | ||
160 | static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) | |
161 | { | |
162 | int actual = 0; | |
163 | ||
164 | bt3c_address(iobase, 0x7080); | |
165 | ||
166 | /* Fill FIFO with current frame */ | |
167 | while (actual < len) { | |
168 | /* Transmit next byte */ | |
169 | bt3c_put(iobase, buf[actual]); | |
170 | actual++; | |
171 | } | |
172 | ||
173 | bt3c_io_write(iobase, 0x7005, actual); | |
174 | ||
175 | return actual; | |
176 | } | |
177 | ||
178 | ||
179 | static void bt3c_write_wakeup(bt3c_info_t *info) | |
180 | { | |
181 | if (!info) { | |
182 | BT_ERR("Unknown device"); | |
183 | return; | |
184 | } | |
185 | ||
186 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) | |
187 | return; | |
188 | ||
189 | do { | |
9a017a91 | 190 | register unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
191 | register struct sk_buff *skb; |
192 | register int len; | |
193 | ||
e2d40963 | 194 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
195 | break; |
196 | ||
197 | ||
198 | if (!(skb = skb_dequeue(&(info->txq)))) { | |
199 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
200 | break; | |
201 | } | |
202 | ||
203 | /* Send frame */ | |
204 | len = bt3c_write(iobase, 256, skb->data, skb->len); | |
205 | ||
206 | if (len != skb->len) { | |
207 | BT_ERR("Very strange"); | |
208 | } | |
209 | ||
210 | kfree_skb(skb); | |
211 | ||
212 | info->hdev->stat.byte_tx += len; | |
213 | ||
214 | } while (0); | |
215 | } | |
216 | ||
217 | ||
218 | static void bt3c_receive(bt3c_info_t *info) | |
219 | { | |
220 | unsigned int iobase; | |
221 | int size = 0, avail; | |
222 | ||
223 | if (!info) { | |
224 | BT_ERR("Unknown device"); | |
225 | return; | |
226 | } | |
227 | ||
9a017a91 | 228 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
229 | |
230 | avail = bt3c_read(iobase, 0x7006); | |
231 | //printk("bt3c_cs: receiving %d bytes\n", avail); | |
232 | ||
233 | bt3c_address(iobase, 0x7480); | |
234 | while (size < avail) { | |
235 | size++; | |
236 | info->hdev->stat.byte_rx++; | |
237 | ||
238 | /* Allocate packet */ | |
239 | if (info->rx_skb == NULL) { | |
240 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
241 | info->rx_count = 0; | |
242 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
243 | BT_ERR("Can't allocate mem for new packet"); | |
244 | return; | |
245 | } | |
246 | } | |
247 | ||
248 | ||
249 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
250 | ||
251 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 252 | bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L); |
1da177e4 | 253 | inb(iobase + DATA_H); |
0d48d939 | 254 | //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 | 255 | |
0d48d939 | 256 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
257 | |
258 | case HCI_EVENT_PKT: | |
259 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
260 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
261 | break; | |
262 | ||
263 | case HCI_ACLDATA_PKT: | |
264 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
265 | info->rx_count = HCI_ACL_HDR_SIZE; | |
266 | break; | |
267 | ||
268 | case HCI_SCODATA_PKT: | |
269 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
270 | info->rx_count = HCI_SCO_HDR_SIZE; | |
271 | break; | |
272 | ||
273 | default: | |
274 | /* Unknown packet */ | |
0d48d939 | 275 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
276 | info->hdev->stat.err_rx++; |
277 | clear_bit(HCI_RUNNING, &(info->hdev->flags)); | |
278 | ||
279 | kfree_skb(info->rx_skb); | |
280 | info->rx_skb = NULL; | |
281 | break; | |
282 | ||
283 | } | |
284 | ||
285 | } else { | |
286 | ||
287 | __u8 x = inb(iobase + DATA_L); | |
288 | ||
289 | *skb_put(info->rx_skb, 1) = x; | |
290 | inb(iobase + DATA_H); | |
291 | info->rx_count--; | |
292 | ||
293 | if (info->rx_count == 0) { | |
294 | ||
295 | int dlen; | |
296 | struct hci_event_hdr *eh; | |
297 | struct hci_acl_hdr *ah; | |
298 | struct hci_sco_hdr *sh; | |
299 | ||
300 | switch (info->rx_state) { | |
301 | ||
302 | case RECV_WAIT_EVENT_HEADER: | |
2a123b86 | 303 | eh = hci_event_hdr(info->rx_skb); |
1da177e4 LT |
304 | info->rx_state = RECV_WAIT_DATA; |
305 | info->rx_count = eh->plen; | |
306 | break; | |
307 | ||
308 | case RECV_WAIT_ACL_HEADER: | |
2a123b86 | 309 | ah = hci_acl_hdr(info->rx_skb); |
1da177e4 LT |
310 | dlen = __le16_to_cpu(ah->dlen); |
311 | info->rx_state = RECV_WAIT_DATA; | |
312 | info->rx_count = dlen; | |
313 | break; | |
314 | ||
315 | case RECV_WAIT_SCO_HEADER: | |
2a123b86 | 316 | sh = hci_sco_hdr(info->rx_skb); |
1da177e4 LT |
317 | info->rx_state = RECV_WAIT_DATA; |
318 | info->rx_count = sh->dlen; | |
319 | break; | |
320 | ||
321 | case RECV_WAIT_DATA: | |
322 | hci_recv_frame(info->rx_skb); | |
323 | info->rx_skb = NULL; | |
324 | break; | |
325 | ||
326 | } | |
327 | ||
328 | } | |
329 | ||
330 | } | |
331 | ||
332 | } | |
333 | ||
334 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
335 | } | |
336 | ||
337 | ||
7d12e780 | 338 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) |
1da177e4 LT |
339 | { |
340 | bt3c_info_t *info = dev_inst; | |
341 | unsigned int iobase; | |
342 | int iir; | |
aafcf998 | 343 | irqreturn_t r = IRQ_NONE; |
1da177e4 | 344 | |
7427847d MF |
345 | if (!info || !info->hdev) |
346 | /* our irq handler is shared */ | |
347 | return IRQ_NONE; | |
1da177e4 | 348 | |
9a017a91 | 349 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
350 | |
351 | spin_lock(&(info->lock)); | |
352 | ||
353 | iir = inb(iobase + CONTROL); | |
354 | if (iir & 0x80) { | |
355 | int stat = bt3c_read(iobase, 0x7001); | |
356 | ||
357 | if ((stat & 0xff) == 0x7f) { | |
358 | BT_ERR("Very strange (stat=0x%04x)", stat); | |
359 | } else if ((stat & 0xff) != 0xff) { | |
360 | if (stat & 0x0020) { | |
34a55eda | 361 | int status = bt3c_read(iobase, 0x7002) & 0x10; |
1da177e4 | 362 | BT_INFO("%s: Antenna %s", info->hdev->name, |
34a55eda | 363 | status ? "out" : "in"); |
1da177e4 LT |
364 | } |
365 | if (stat & 0x0001) | |
366 | bt3c_receive(info); | |
367 | if (stat & 0x0002) { | |
368 | //BT_ERR("Ack (stat=0x%04x)", stat); | |
369 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
370 | bt3c_write_wakeup(info); | |
371 | } | |
372 | ||
373 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
374 | ||
375 | outb(iir, iobase + CONTROL); | |
376 | } | |
aafcf998 | 377 | r = IRQ_HANDLED; |
1da177e4 LT |
378 | } |
379 | ||
380 | spin_unlock(&(info->lock)); | |
381 | ||
aafcf998 | 382 | return r; |
1da177e4 LT |
383 | } |
384 | ||
385 | ||
386 | ||
387 | /* ======================== HCI interface ======================== */ | |
388 | ||
389 | ||
390 | static int bt3c_hci_flush(struct hci_dev *hdev) | |
391 | { | |
392 | bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data); | |
393 | ||
394 | /* Drop TX queue */ | |
395 | skb_queue_purge(&(info->txq)); | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | ||
401 | static int bt3c_hci_open(struct hci_dev *hdev) | |
402 | { | |
403 | set_bit(HCI_RUNNING, &(hdev->flags)); | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
408 | ||
409 | static int bt3c_hci_close(struct hci_dev *hdev) | |
410 | { | |
411 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
412 | return 0; | |
413 | ||
414 | bt3c_hci_flush(hdev); | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
419 | ||
420 | static int bt3c_hci_send_frame(struct sk_buff *skb) | |
421 | { | |
422 | bt3c_info_t *info; | |
423 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
424 | unsigned long flags; | |
425 | ||
426 | if (!hdev) { | |
427 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
428 | return -ENODEV; | |
429 | } | |
430 | ||
431 | info = (bt3c_info_t *) (hdev->driver_data); | |
432 | ||
0d48d939 | 433 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
434 | case HCI_COMMAND_PKT: |
435 | hdev->stat.cmd_tx++; | |
436 | break; | |
437 | case HCI_ACLDATA_PKT: | |
438 | hdev->stat.acl_tx++; | |
439 | break; | |
440 | case HCI_SCODATA_PKT: | |
441 | hdev->stat.sco_tx++; | |
442 | break; | |
443 | }; | |
444 | ||
445 | /* Prepend skb with frame type */ | |
0d48d939 | 446 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
447 | skb_queue_tail(&(info->txq), skb); |
448 | ||
449 | spin_lock_irqsave(&(info->lock), flags); | |
450 | ||
451 | bt3c_write_wakeup(info); | |
452 | ||
453 | spin_unlock_irqrestore(&(info->lock), flags); | |
454 | ||
455 | return 0; | |
456 | } | |
457 | ||
458 | ||
459 | static void bt3c_hci_destruct(struct hci_dev *hdev) | |
460 | { | |
461 | } | |
462 | ||
463 | ||
464 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
465 | { | |
466 | return -ENOIOCTLCMD; | |
467 | } | |
468 | ||
469 | ||
470 | ||
471 | /* ======================== Card services HCI interaction ======================== */ | |
472 | ||
473 | ||
8187b4fb DW |
474 | static int bt3c_load_firmware(bt3c_info_t *info, const unsigned char *firmware, |
475 | int count) | |
1da177e4 LT |
476 | { |
477 | char *ptr = (char *) firmware; | |
478 | char b[9]; | |
479 | unsigned int iobase, size, addr, fcs, tmp; | |
480 | int i, err = 0; | |
481 | ||
9a017a91 | 482 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
483 | |
484 | /* Reset */ | |
485 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
486 | bt3c_io_write(iobase, 0x8040, 0x0400); | |
487 | ||
488 | udelay(1); | |
489 | ||
490 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
491 | ||
492 | udelay(17); | |
493 | ||
494 | /* Load */ | |
495 | while (count) { | |
496 | if (ptr[0] != 'S') { | |
497 | BT_ERR("Bad address in firmware"); | |
498 | err = -EFAULT; | |
499 | goto error; | |
500 | } | |
501 | ||
502 | memset(b, 0, sizeof(b)); | |
503 | memcpy(b, ptr + 2, 2); | |
51a6fbc8 | 504 | size = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
505 | |
506 | memset(b, 0, sizeof(b)); | |
507 | memcpy(b, ptr + 4, 8); | |
51a6fbc8 | 508 | addr = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
509 | |
510 | memset(b, 0, sizeof(b)); | |
511 | memcpy(b, ptr + (size * 2) + 2, 2); | |
51a6fbc8 | 512 | fcs = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
513 | |
514 | memset(b, 0, sizeof(b)); | |
515 | for (tmp = 0, i = 0; i < size; i++) { | |
516 | memcpy(b, ptr + (i * 2) + 2, 2); | |
517 | tmp += simple_strtol(b, NULL, 16); | |
518 | } | |
519 | ||
520 | if (((tmp + fcs) & 0xff) != 0xff) { | |
521 | BT_ERR("Checksum error in firmware"); | |
522 | err = -EILSEQ; | |
523 | goto error; | |
524 | } | |
525 | ||
526 | if (ptr[1] == '3') { | |
527 | bt3c_address(iobase, addr); | |
528 | ||
529 | memset(b, 0, sizeof(b)); | |
530 | for (i = 0; i < (size - 4) / 2; i++) { | |
531 | memcpy(b, ptr + (i * 4) + 12, 4); | |
51a6fbc8 | 532 | tmp = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
533 | bt3c_put(iobase, tmp); |
534 | } | |
535 | } | |
536 | ||
537 | ptr += (size * 2) + 6; | |
538 | count -= (size * 2) + 6; | |
539 | } | |
540 | ||
541 | udelay(17); | |
542 | ||
543 | /* Boot */ | |
544 | bt3c_address(iobase, 0x3000); | |
545 | outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); | |
546 | ||
547 | error: | |
548 | udelay(17); | |
549 | ||
550 | /* Clear */ | |
551 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
552 | bt3c_io_write(iobase, 0x7005, 0x0000); | |
553 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
554 | ||
555 | return err; | |
556 | } | |
557 | ||
558 | ||
559 | static int bt3c_open(bt3c_info_t *info) | |
560 | { | |
561 | const struct firmware *firmware; | |
562 | struct hci_dev *hdev; | |
563 | int err; | |
564 | ||
565 | spin_lock_init(&(info->lock)); | |
566 | ||
567 | skb_queue_head_init(&(info->txq)); | |
568 | ||
569 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
570 | info->rx_count = 0; | |
571 | info->rx_skb = NULL; | |
572 | ||
573 | /* Initialize HCI device */ | |
574 | hdev = hci_alloc_dev(); | |
575 | if (!hdev) { | |
576 | BT_ERR("Can't allocate HCI device"); | |
577 | return -ENOMEM; | |
578 | } | |
579 | ||
580 | info->hdev = hdev; | |
581 | ||
c13854ce | 582 | hdev->bus = HCI_PCCARD; |
1da177e4 | 583 | hdev->driver_data = info; |
27d35284 | 584 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 LT |
585 | |
586 | hdev->open = bt3c_hci_open; | |
587 | hdev->close = bt3c_hci_close; | |
588 | hdev->flush = bt3c_hci_flush; | |
589 | hdev->send = bt3c_hci_send_frame; | |
590 | hdev->destruct = bt3c_hci_destruct; | |
591 | hdev->ioctl = bt3c_hci_ioctl; | |
592 | ||
593 | hdev->owner = THIS_MODULE; | |
594 | ||
595 | /* Load firmware */ | |
fd238232 | 596 | err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev); |
1da177e4 LT |
597 | if (err < 0) { |
598 | BT_ERR("Firmware request failed"); | |
599 | goto error; | |
600 | } | |
601 | ||
602 | err = bt3c_load_firmware(info, firmware->data, firmware->size); | |
603 | ||
604 | release_firmware(firmware); | |
605 | ||
606 | if (err < 0) { | |
607 | BT_ERR("Firmware loading failed"); | |
608 | goto error; | |
609 | } | |
610 | ||
611 | /* Timeout before it is safe to send the first HCI packet */ | |
612 | msleep(1000); | |
613 | ||
614 | /* Register HCI device */ | |
615 | err = hci_register_dev(hdev); | |
616 | if (err < 0) { | |
617 | BT_ERR("Can't register HCI device"); | |
618 | goto error; | |
619 | } | |
620 | ||
621 | return 0; | |
622 | ||
623 | error: | |
624 | info->hdev = NULL; | |
625 | hci_free_dev(hdev); | |
626 | return err; | |
627 | } | |
628 | ||
629 | ||
630 | static int bt3c_close(bt3c_info_t *info) | |
631 | { | |
632 | struct hci_dev *hdev = info->hdev; | |
633 | ||
634 | if (!hdev) | |
635 | return -ENODEV; | |
636 | ||
637 | bt3c_hci_close(hdev); | |
638 | ||
13ea4015 | 639 | hci_unregister_dev(hdev); |
1da177e4 LT |
640 | hci_free_dev(hdev); |
641 | ||
642 | return 0; | |
643 | } | |
644 | ||
15b99ac1 | 645 | static int bt3c_probe(struct pcmcia_device *link) |
1da177e4 LT |
646 | { |
647 | bt3c_info_t *info; | |
1da177e4 LT |
648 | |
649 | /* Create new info device */ | |
089b1dbb | 650 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 | 651 | if (!info) |
f8cfa618 | 652 | return -ENOMEM; |
1da177e4 | 653 | |
fba395ee | 654 | info->p_dev = link; |
1da177e4 LT |
655 | link->priv = info; |
656 | ||
00990e7c DB |
657 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | |
658 | CONF_AUTO_SET_IO; | |
1da177e4 | 659 | |
15b99ac1 | 660 | return bt3c_config(link); |
1da177e4 LT |
661 | } |
662 | ||
663 | ||
fba395ee | 664 | static void bt3c_detach(struct pcmcia_device *link) |
1da177e4 LT |
665 | { |
666 | bt3c_info_t *info = link->priv; | |
1da177e4 | 667 | |
e2d40963 | 668 | bt3c_release(link); |
1da177e4 LT |
669 | kfree(info); |
670 | } | |
671 | ||
00990e7c | 672 | static int bt3c_check_config(struct pcmcia_device *p_dev, void *priv_data) |
1da177e4 | 673 | { |
00990e7c | 674 | int *try = priv_data; |
90abdc3b | 675 | |
00990e7c DB |
676 | if (try == 0) |
677 | p_dev->io_lines = 16; | |
678 | ||
679 | if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0)) | |
680 | return -EINVAL; | |
681 | ||
682 | p_dev->resource[0]->end = 8; | |
683 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
684 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
685 | ||
686 | return pcmcia_request_io(p_dev); | |
1da177e4 LT |
687 | } |
688 | ||
ed58872a | 689 | static int bt3c_check_config_notpicky(struct pcmcia_device *p_dev, |
ed58872a | 690 | void *priv_data) |
1da177e4 | 691 | { |
ed58872a DB |
692 | static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; |
693 | int j; | |
694 | ||
00990e7c DB |
695 | if (p_dev->io_lines > 3) |
696 | return -ENODEV; | |
697 | ||
698 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
699 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
700 | p_dev->resource[0]->end = 8; | |
701 | ||
702 | for (j = 0; j < 5; j++) { | |
703 | p_dev->resource[0]->start = base[j]; | |
704 | p_dev->io_lines = base[j] ? 16 : 3; | |
705 | if (!pcmcia_request_io(p_dev)) | |
706 | return 0; | |
ed58872a DB |
707 | } |
708 | return -ENODEV; | |
1da177e4 LT |
709 | } |
710 | ||
15b99ac1 | 711 | static int bt3c_config(struct pcmcia_device *link) |
1da177e4 | 712 | { |
1da177e4 | 713 | bt3c_info_t *info = link->priv; |
ed58872a DB |
714 | int i; |
715 | unsigned long try; | |
716 | ||
717 | /* First pass: look for a config entry that looks normal. | |
718 | Two tries: without IO aliases, then with aliases */ | |
719 | for (try = 0; try < 2; try++) | |
720 | if (!pcmcia_loop_config(link, bt3c_check_config, (void *) try)) | |
721 | goto found_port; | |
1da177e4 LT |
722 | |
723 | /* Second pass: try to find an entry that isn't picky about | |
724 | its base address, then try to grab any standard serial port | |
725 | address, and finally try to get any free port. */ | |
ed58872a DB |
726 | if (!pcmcia_loop_config(link, bt3c_check_config_notpicky, NULL)) |
727 | goto found_port; | |
1da177e4 | 728 | |
ed58872a | 729 | BT_ERR("No usable port range found"); |
ed58872a | 730 | goto failed; |
1da177e4 | 731 | |
ed58872a | 732 | found_port: |
eb14120f | 733 | i = pcmcia_request_irq(link, &bt3c_interrupt); |
9ac3e58c | 734 | if (i != 0) |
eb14120f | 735 | goto failed; |
1da177e4 | 736 | |
1ac71e5a | 737 | i = pcmcia_enable_device(link); |
9ac3e58c | 738 | if (i != 0) |
1da177e4 | 739 | goto failed; |
1da177e4 LT |
740 | |
741 | if (bt3c_open(info) != 0) | |
742 | goto failed; | |
743 | ||
15b99ac1 | 744 | return 0; |
1da177e4 | 745 | |
1da177e4 LT |
746 | failed: |
747 | bt3c_release(link); | |
15b99ac1 | 748 | return -ENODEV; |
1da177e4 LT |
749 | } |
750 | ||
751 | ||
fba395ee | 752 | static void bt3c_release(struct pcmcia_device *link) |
1da177e4 LT |
753 | { |
754 | bt3c_info_t *info = link->priv; | |
755 | ||
e2d40963 | 756 | bt3c_close(info); |
1da177e4 | 757 | |
fba395ee | 758 | pcmcia_disable_device(link); |
1da177e4 LT |
759 | } |
760 | ||
1da177e4 | 761 | |
25f8f54f | 762 | static const struct pcmcia_device_id bt3c_ids[] = { |
a01c3ed4 DB |
763 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), |
764 | PCMCIA_DEVICE_NULL | |
765 | }; | |
766 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); | |
767 | ||
1da177e4 LT |
768 | static struct pcmcia_driver bt3c_driver = { |
769 | .owner = THIS_MODULE, | |
2e9b981a | 770 | .name = "bt3c_cs", |
15b99ac1 | 771 | .probe = bt3c_probe, |
cc3b4866 | 772 | .remove = bt3c_detach, |
a01c3ed4 | 773 | .id_table = bt3c_ids, |
1da177e4 LT |
774 | }; |
775 | ||
776 | static int __init init_bt3c_cs(void) | |
777 | { | |
778 | return pcmcia_register_driver(&bt3c_driver); | |
779 | } | |
780 | ||
781 | ||
782 | static void __exit exit_bt3c_cs(void) | |
783 | { | |
784 | pcmcia_unregister_driver(&bt3c_driver); | |
1da177e4 LT |
785 | } |
786 | ||
787 | module_init(init_bt3c_cs); | |
788 | module_exit(exit_bt3c_cs); |