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/cs.h> |
49 | #include <pcmcia/cistpl.h> | |
50 | #include <pcmcia/ciscode.h> | |
51 | #include <pcmcia/ds.h> | |
52 | #include <pcmcia/cisreg.h> | |
53 | ||
54 | #include <net/bluetooth/bluetooth.h> | |
55 | #include <net/bluetooth/hci_core.h> | |
56 | ||
57 | ||
58 | ||
59 | /* ======================== Module parameters ======================== */ | |
60 | ||
61 | ||
63fbd24e | 62 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1da177e4 LT |
63 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card"); |
64 | MODULE_LICENSE("GPL"); | |
2312119a | 65 | MODULE_FIRMWARE("BT3CPCC.bin"); |
1da177e4 LT |
66 | |
67 | ||
68 | ||
69 | /* ======================== Local structures ======================== */ | |
70 | ||
71 | ||
72 | typedef struct bt3c_info_t { | |
fd238232 | 73 | struct pcmcia_device *p_dev; |
1da177e4 LT |
74 | |
75 | struct hci_dev *hdev; | |
76 | ||
77 | spinlock_t lock; /* For serializing operations */ | |
78 | ||
79 | struct sk_buff_head txq; | |
80 | unsigned long tx_state; | |
81 | ||
82 | unsigned long rx_state; | |
83 | unsigned long rx_count; | |
84 | struct sk_buff *rx_skb; | |
85 | } bt3c_info_t; | |
86 | ||
87 | ||
15b99ac1 | 88 | static int bt3c_config(struct pcmcia_device *link); |
fba395ee | 89 | static void bt3c_release(struct pcmcia_device *link); |
1da177e4 | 90 | |
cc3b4866 | 91 | static void bt3c_detach(struct pcmcia_device *p_dev); |
1da177e4 | 92 | |
1da177e4 LT |
93 | |
94 | /* Transmit states */ | |
95 | #define XMIT_SENDING 1 | |
96 | #define XMIT_WAKEUP 2 | |
97 | #define XMIT_WAITING 8 | |
98 | ||
99 | /* Receiver states */ | |
100 | #define RECV_WAIT_PACKET_TYPE 0 | |
101 | #define RECV_WAIT_EVENT_HEADER 1 | |
102 | #define RECV_WAIT_ACL_HEADER 2 | |
103 | #define RECV_WAIT_SCO_HEADER 3 | |
104 | #define RECV_WAIT_DATA 4 | |
105 | ||
106 | ||
107 | ||
108 | /* ======================== Special I/O functions ======================== */ | |
109 | ||
110 | ||
111 | #define DATA_L 0 | |
112 | #define DATA_H 1 | |
113 | #define ADDR_L 2 | |
114 | #define ADDR_H 3 | |
115 | #define CONTROL 4 | |
116 | ||
117 | ||
118 | static inline void bt3c_address(unsigned int iobase, unsigned short addr) | |
119 | { | |
120 | outb(addr & 0xff, iobase + ADDR_L); | |
121 | outb((addr >> 8) & 0xff, iobase + ADDR_H); | |
122 | } | |
123 | ||
124 | ||
125 | static inline void bt3c_put(unsigned int iobase, unsigned short value) | |
126 | { | |
127 | outb(value & 0xff, iobase + DATA_L); | |
128 | outb((value >> 8) & 0xff, iobase + DATA_H); | |
129 | } | |
130 | ||
131 | ||
132 | static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) | |
133 | { | |
134 | bt3c_address(iobase, addr); | |
135 | bt3c_put(iobase, value); | |
136 | } | |
137 | ||
138 | ||
139 | static inline unsigned short bt3c_get(unsigned int iobase) | |
140 | { | |
141 | unsigned short value = inb(iobase + DATA_L); | |
142 | ||
143 | value |= inb(iobase + DATA_H) << 8; | |
144 | ||
145 | return value; | |
146 | } | |
147 | ||
148 | ||
149 | static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) | |
150 | { | |
151 | bt3c_address(iobase, addr); | |
152 | ||
153 | return bt3c_get(iobase); | |
154 | } | |
155 | ||
156 | ||
157 | ||
158 | /* ======================== Interrupt handling ======================== */ | |
159 | ||
160 | ||
161 | static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) | |
162 | { | |
163 | int actual = 0; | |
164 | ||
165 | bt3c_address(iobase, 0x7080); | |
166 | ||
167 | /* Fill FIFO with current frame */ | |
168 | while (actual < len) { | |
169 | /* Transmit next byte */ | |
170 | bt3c_put(iobase, buf[actual]); | |
171 | actual++; | |
172 | } | |
173 | ||
174 | bt3c_io_write(iobase, 0x7005, actual); | |
175 | ||
176 | return actual; | |
177 | } | |
178 | ||
179 | ||
180 | static void bt3c_write_wakeup(bt3c_info_t *info) | |
181 | { | |
182 | if (!info) { | |
183 | BT_ERR("Unknown device"); | |
184 | return; | |
185 | } | |
186 | ||
187 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) | |
188 | return; | |
189 | ||
190 | do { | |
9a017a91 | 191 | register unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
192 | register struct sk_buff *skb; |
193 | register int len; | |
194 | ||
e2d40963 | 195 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
196 | break; |
197 | ||
198 | ||
199 | if (!(skb = skb_dequeue(&(info->txq)))) { | |
200 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
201 | break; | |
202 | } | |
203 | ||
204 | /* Send frame */ | |
205 | len = bt3c_write(iobase, 256, skb->data, skb->len); | |
206 | ||
207 | if (len != skb->len) { | |
208 | BT_ERR("Very strange"); | |
209 | } | |
210 | ||
211 | kfree_skb(skb); | |
212 | ||
213 | info->hdev->stat.byte_tx += len; | |
214 | ||
215 | } while (0); | |
216 | } | |
217 | ||
218 | ||
219 | static void bt3c_receive(bt3c_info_t *info) | |
220 | { | |
221 | unsigned int iobase; | |
222 | int size = 0, avail; | |
223 | ||
224 | if (!info) { | |
225 | BT_ERR("Unknown device"); | |
226 | return; | |
227 | } | |
228 | ||
9a017a91 | 229 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
230 | |
231 | avail = bt3c_read(iobase, 0x7006); | |
232 | //printk("bt3c_cs: receiving %d bytes\n", avail); | |
233 | ||
234 | bt3c_address(iobase, 0x7480); | |
235 | while (size < avail) { | |
236 | size++; | |
237 | info->hdev->stat.byte_rx++; | |
238 | ||
239 | /* Allocate packet */ | |
240 | if (info->rx_skb == NULL) { | |
241 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
242 | info->rx_count = 0; | |
243 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
244 | BT_ERR("Can't allocate mem for new packet"); | |
245 | return; | |
246 | } | |
247 | } | |
248 | ||
249 | ||
250 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
251 | ||
252 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 253 | bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L); |
1da177e4 | 254 | inb(iobase + DATA_H); |
0d48d939 | 255 | //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 | 256 | |
0d48d939 | 257 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
258 | |
259 | case HCI_EVENT_PKT: | |
260 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
261 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
262 | break; | |
263 | ||
264 | case HCI_ACLDATA_PKT: | |
265 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
266 | info->rx_count = HCI_ACL_HDR_SIZE; | |
267 | break; | |
268 | ||
269 | case HCI_SCODATA_PKT: | |
270 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
271 | info->rx_count = HCI_SCO_HDR_SIZE; | |
272 | break; | |
273 | ||
274 | default: | |
275 | /* Unknown packet */ | |
0d48d939 | 276 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
277 | info->hdev->stat.err_rx++; |
278 | clear_bit(HCI_RUNNING, &(info->hdev->flags)); | |
279 | ||
280 | kfree_skb(info->rx_skb); | |
281 | info->rx_skb = NULL; | |
282 | break; | |
283 | ||
284 | } | |
285 | ||
286 | } else { | |
287 | ||
288 | __u8 x = inb(iobase + DATA_L); | |
289 | ||
290 | *skb_put(info->rx_skb, 1) = x; | |
291 | inb(iobase + DATA_H); | |
292 | info->rx_count--; | |
293 | ||
294 | if (info->rx_count == 0) { | |
295 | ||
296 | int dlen; | |
297 | struct hci_event_hdr *eh; | |
298 | struct hci_acl_hdr *ah; | |
299 | struct hci_sco_hdr *sh; | |
300 | ||
301 | switch (info->rx_state) { | |
302 | ||
303 | case RECV_WAIT_EVENT_HEADER: | |
2a123b86 | 304 | eh = hci_event_hdr(info->rx_skb); |
1da177e4 LT |
305 | info->rx_state = RECV_WAIT_DATA; |
306 | info->rx_count = eh->plen; | |
307 | break; | |
308 | ||
309 | case RECV_WAIT_ACL_HEADER: | |
2a123b86 | 310 | ah = hci_acl_hdr(info->rx_skb); |
1da177e4 LT |
311 | dlen = __le16_to_cpu(ah->dlen); |
312 | info->rx_state = RECV_WAIT_DATA; | |
313 | info->rx_count = dlen; | |
314 | break; | |
315 | ||
316 | case RECV_WAIT_SCO_HEADER: | |
2a123b86 | 317 | sh = hci_sco_hdr(info->rx_skb); |
1da177e4 LT |
318 | info->rx_state = RECV_WAIT_DATA; |
319 | info->rx_count = sh->dlen; | |
320 | break; | |
321 | ||
322 | case RECV_WAIT_DATA: | |
323 | hci_recv_frame(info->rx_skb); | |
324 | info->rx_skb = NULL; | |
325 | break; | |
326 | ||
327 | } | |
328 | ||
329 | } | |
330 | ||
331 | } | |
332 | ||
333 | } | |
334 | ||
335 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
336 | } | |
337 | ||
338 | ||
7d12e780 | 339 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) |
1da177e4 LT |
340 | { |
341 | bt3c_info_t *info = dev_inst; | |
342 | unsigned int iobase; | |
343 | int iir; | |
aafcf998 | 344 | irqreturn_t r = IRQ_NONE; |
1da177e4 | 345 | |
7427847d MF |
346 | if (!info || !info->hdev) |
347 | /* our irq handler is shared */ | |
348 | return IRQ_NONE; | |
1da177e4 | 349 | |
9a017a91 | 350 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
351 | |
352 | spin_lock(&(info->lock)); | |
353 | ||
354 | iir = inb(iobase + CONTROL); | |
355 | if (iir & 0x80) { | |
356 | int stat = bt3c_read(iobase, 0x7001); | |
357 | ||
358 | if ((stat & 0xff) == 0x7f) { | |
359 | BT_ERR("Very strange (stat=0x%04x)", stat); | |
360 | } else if ((stat & 0xff) != 0xff) { | |
361 | if (stat & 0x0020) { | |
34a55eda | 362 | int status = bt3c_read(iobase, 0x7002) & 0x10; |
1da177e4 | 363 | BT_INFO("%s: Antenna %s", info->hdev->name, |
34a55eda | 364 | status ? "out" : "in"); |
1da177e4 LT |
365 | } |
366 | if (stat & 0x0001) | |
367 | bt3c_receive(info); | |
368 | if (stat & 0x0002) { | |
369 | //BT_ERR("Ack (stat=0x%04x)", stat); | |
370 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
371 | bt3c_write_wakeup(info); | |
372 | } | |
373 | ||
374 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
375 | ||
376 | outb(iir, iobase + CONTROL); | |
377 | } | |
aafcf998 | 378 | r = IRQ_HANDLED; |
1da177e4 LT |
379 | } |
380 | ||
381 | spin_unlock(&(info->lock)); | |
382 | ||
aafcf998 | 383 | return r; |
1da177e4 LT |
384 | } |
385 | ||
386 | ||
387 | ||
388 | /* ======================== HCI interface ======================== */ | |
389 | ||
390 | ||
391 | static int bt3c_hci_flush(struct hci_dev *hdev) | |
392 | { | |
393 | bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data); | |
394 | ||
395 | /* Drop TX queue */ | |
396 | skb_queue_purge(&(info->txq)); | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | ||
402 | static int bt3c_hci_open(struct hci_dev *hdev) | |
403 | { | |
404 | set_bit(HCI_RUNNING, &(hdev->flags)); | |
405 | ||
406 | return 0; | |
407 | } | |
408 | ||
409 | ||
410 | static int bt3c_hci_close(struct hci_dev *hdev) | |
411 | { | |
412 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
413 | return 0; | |
414 | ||
415 | bt3c_hci_flush(hdev); | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | ||
421 | static int bt3c_hci_send_frame(struct sk_buff *skb) | |
422 | { | |
423 | bt3c_info_t *info; | |
424 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
425 | unsigned long flags; | |
426 | ||
427 | if (!hdev) { | |
428 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
429 | return -ENODEV; | |
430 | } | |
431 | ||
432 | info = (bt3c_info_t *) (hdev->driver_data); | |
433 | ||
0d48d939 | 434 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
435 | case HCI_COMMAND_PKT: |
436 | hdev->stat.cmd_tx++; | |
437 | break; | |
438 | case HCI_ACLDATA_PKT: | |
439 | hdev->stat.acl_tx++; | |
440 | break; | |
441 | case HCI_SCODATA_PKT: | |
442 | hdev->stat.sco_tx++; | |
443 | break; | |
444 | }; | |
445 | ||
446 | /* Prepend skb with frame type */ | |
0d48d939 | 447 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
448 | skb_queue_tail(&(info->txq), skb); |
449 | ||
450 | spin_lock_irqsave(&(info->lock), flags); | |
451 | ||
452 | bt3c_write_wakeup(info); | |
453 | ||
454 | spin_unlock_irqrestore(&(info->lock), flags); | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
459 | ||
460 | static void bt3c_hci_destruct(struct hci_dev *hdev) | |
461 | { | |
462 | } | |
463 | ||
464 | ||
465 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
466 | { | |
467 | return -ENOIOCTLCMD; | |
468 | } | |
469 | ||
470 | ||
471 | ||
472 | /* ======================== Card services HCI interaction ======================== */ | |
473 | ||
474 | ||
8187b4fb DW |
475 | static int bt3c_load_firmware(bt3c_info_t *info, const unsigned char *firmware, |
476 | int count) | |
1da177e4 LT |
477 | { |
478 | char *ptr = (char *) firmware; | |
479 | char b[9]; | |
480 | unsigned int iobase, size, addr, fcs, tmp; | |
481 | int i, err = 0; | |
482 | ||
9a017a91 | 483 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
484 | |
485 | /* Reset */ | |
486 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
487 | bt3c_io_write(iobase, 0x8040, 0x0400); | |
488 | ||
489 | udelay(1); | |
490 | ||
491 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
492 | ||
493 | udelay(17); | |
494 | ||
495 | /* Load */ | |
496 | while (count) { | |
497 | if (ptr[0] != 'S') { | |
498 | BT_ERR("Bad address in firmware"); | |
499 | err = -EFAULT; | |
500 | goto error; | |
501 | } | |
502 | ||
503 | memset(b, 0, sizeof(b)); | |
504 | memcpy(b, ptr + 2, 2); | |
51a6fbc8 | 505 | size = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
506 | |
507 | memset(b, 0, sizeof(b)); | |
508 | memcpy(b, ptr + 4, 8); | |
51a6fbc8 | 509 | addr = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
510 | |
511 | memset(b, 0, sizeof(b)); | |
512 | memcpy(b, ptr + (size * 2) + 2, 2); | |
51a6fbc8 | 513 | fcs = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
514 | |
515 | memset(b, 0, sizeof(b)); | |
516 | for (tmp = 0, i = 0; i < size; i++) { | |
517 | memcpy(b, ptr + (i * 2) + 2, 2); | |
518 | tmp += simple_strtol(b, NULL, 16); | |
519 | } | |
520 | ||
521 | if (((tmp + fcs) & 0xff) != 0xff) { | |
522 | BT_ERR("Checksum error in firmware"); | |
523 | err = -EILSEQ; | |
524 | goto error; | |
525 | } | |
526 | ||
527 | if (ptr[1] == '3') { | |
528 | bt3c_address(iobase, addr); | |
529 | ||
530 | memset(b, 0, sizeof(b)); | |
531 | for (i = 0; i < (size - 4) / 2; i++) { | |
532 | memcpy(b, ptr + (i * 4) + 12, 4); | |
51a6fbc8 | 533 | tmp = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
534 | bt3c_put(iobase, tmp); |
535 | } | |
536 | } | |
537 | ||
538 | ptr += (size * 2) + 6; | |
539 | count -= (size * 2) + 6; | |
540 | } | |
541 | ||
542 | udelay(17); | |
543 | ||
544 | /* Boot */ | |
545 | bt3c_address(iobase, 0x3000); | |
546 | outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); | |
547 | ||
548 | error: | |
549 | udelay(17); | |
550 | ||
551 | /* Clear */ | |
552 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
553 | bt3c_io_write(iobase, 0x7005, 0x0000); | |
554 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
555 | ||
556 | return err; | |
557 | } | |
558 | ||
559 | ||
560 | static int bt3c_open(bt3c_info_t *info) | |
561 | { | |
562 | const struct firmware *firmware; | |
563 | struct hci_dev *hdev; | |
564 | int err; | |
565 | ||
566 | spin_lock_init(&(info->lock)); | |
567 | ||
568 | skb_queue_head_init(&(info->txq)); | |
569 | ||
570 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
571 | info->rx_count = 0; | |
572 | info->rx_skb = NULL; | |
573 | ||
574 | /* Initialize HCI device */ | |
575 | hdev = hci_alloc_dev(); | |
576 | if (!hdev) { | |
577 | BT_ERR("Can't allocate HCI device"); | |
578 | return -ENOMEM; | |
579 | } | |
580 | ||
581 | info->hdev = hdev; | |
582 | ||
c13854ce | 583 | hdev->bus = HCI_PCCARD; |
1da177e4 | 584 | hdev->driver_data = info; |
27d35284 | 585 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 LT |
586 | |
587 | hdev->open = bt3c_hci_open; | |
588 | hdev->close = bt3c_hci_close; | |
589 | hdev->flush = bt3c_hci_flush; | |
590 | hdev->send = bt3c_hci_send_frame; | |
591 | hdev->destruct = bt3c_hci_destruct; | |
592 | hdev->ioctl = bt3c_hci_ioctl; | |
593 | ||
594 | hdev->owner = THIS_MODULE; | |
595 | ||
596 | /* Load firmware */ | |
fd238232 | 597 | err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev); |
1da177e4 LT |
598 | if (err < 0) { |
599 | BT_ERR("Firmware request failed"); | |
600 | goto error; | |
601 | } | |
602 | ||
603 | err = bt3c_load_firmware(info, firmware->data, firmware->size); | |
604 | ||
605 | release_firmware(firmware); | |
606 | ||
607 | if (err < 0) { | |
608 | BT_ERR("Firmware loading failed"); | |
609 | goto error; | |
610 | } | |
611 | ||
612 | /* Timeout before it is safe to send the first HCI packet */ | |
613 | msleep(1000); | |
614 | ||
615 | /* Register HCI device */ | |
616 | err = hci_register_dev(hdev); | |
617 | if (err < 0) { | |
618 | BT_ERR("Can't register HCI device"); | |
619 | goto error; | |
620 | } | |
621 | ||
622 | return 0; | |
623 | ||
624 | error: | |
625 | info->hdev = NULL; | |
626 | hci_free_dev(hdev); | |
627 | return err; | |
628 | } | |
629 | ||
630 | ||
631 | static int bt3c_close(bt3c_info_t *info) | |
632 | { | |
633 | struct hci_dev *hdev = info->hdev; | |
634 | ||
635 | if (!hdev) | |
636 | return -ENODEV; | |
637 | ||
638 | bt3c_hci_close(hdev); | |
639 | ||
640 | if (hci_unregister_dev(hdev) < 0) | |
641 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
642 | ||
643 | hci_free_dev(hdev); | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
15b99ac1 | 648 | static int bt3c_probe(struct pcmcia_device *link) |
1da177e4 LT |
649 | { |
650 | bt3c_info_t *info; | |
1da177e4 LT |
651 | |
652 | /* Create new info device */ | |
089b1dbb | 653 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 | 654 | if (!info) |
f8cfa618 | 655 | return -ENOMEM; |
1da177e4 | 656 | |
fba395ee | 657 | info->p_dev = link; |
1da177e4 LT |
658 | link->priv = info; |
659 | ||
90abdc3b DB |
660 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; |
661 | link->resource[0]->end = 8; | |
1da177e4 LT |
662 | |
663 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
664 | link->conf.IntType = INT_MEMORY_AND_IO; |
665 | ||
15b99ac1 | 666 | return bt3c_config(link); |
1da177e4 LT |
667 | } |
668 | ||
669 | ||
fba395ee | 670 | static void bt3c_detach(struct pcmcia_device *link) |
1da177e4 LT |
671 | { |
672 | bt3c_info_t *info = link->priv; | |
1da177e4 | 673 | |
e2d40963 | 674 | bt3c_release(link); |
1da177e4 LT |
675 | kfree(info); |
676 | } | |
677 | ||
ed58872a DB |
678 | static int bt3c_check_config(struct pcmcia_device *p_dev, |
679 | cistpl_cftable_entry_t *cf, | |
8e2fc39d | 680 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 681 | unsigned int vcc, |
ed58872a | 682 | void *priv_data) |
1da177e4 | 683 | { |
ed58872a DB |
684 | unsigned long try = (unsigned long) priv_data; |
685 | ||
90abdc3b DB |
686 | p_dev->io_lines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK; |
687 | ||
ed58872a | 688 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) |
e8405f0f | 689 | p_dev->vpp = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
ed58872a DB |
690 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && |
691 | (cf->io.win[0].base != 0)) { | |
90abdc3b DB |
692 | p_dev->resource[0]->start = cf->io.win[0].base; |
693 | if (!pcmcia_request_io(p_dev)) | |
ed58872a DB |
694 | return 0; |
695 | } | |
696 | return -ENODEV; | |
1da177e4 LT |
697 | } |
698 | ||
ed58872a DB |
699 | static int bt3c_check_config_notpicky(struct pcmcia_device *p_dev, |
700 | cistpl_cftable_entry_t *cf, | |
8e2fc39d | 701 | cistpl_cftable_entry_t *dflt, |
ad913c11 | 702 | unsigned int vcc, |
ed58872a | 703 | void *priv_data) |
1da177e4 | 704 | { |
ed58872a DB |
705 | static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; |
706 | int j; | |
707 | ||
708 | if ((cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { | |
ed58872a | 709 | for (j = 0; j < 5; j++) { |
90abdc3b DB |
710 | p_dev->resource[0]->start = base[j]; |
711 | p_dev->io_lines = base[j] ? 16 : 3; | |
712 | if (!pcmcia_request_io(p_dev)) | |
ed58872a DB |
713 | return 0; |
714 | } | |
715 | } | |
716 | return -ENODEV; | |
1da177e4 LT |
717 | } |
718 | ||
15b99ac1 | 719 | static int bt3c_config(struct pcmcia_device *link) |
1da177e4 | 720 | { |
1da177e4 | 721 | bt3c_info_t *info = link->priv; |
ed58872a DB |
722 | int i; |
723 | unsigned long try; | |
724 | ||
725 | /* First pass: look for a config entry that looks normal. | |
726 | Two tries: without IO aliases, then with aliases */ | |
727 | for (try = 0; try < 2; try++) | |
728 | if (!pcmcia_loop_config(link, bt3c_check_config, (void *) try)) | |
729 | goto found_port; | |
1da177e4 LT |
730 | |
731 | /* Second pass: try to find an entry that isn't picky about | |
732 | its base address, then try to grab any standard serial port | |
733 | address, and finally try to get any free port. */ | |
ed58872a DB |
734 | if (!pcmcia_loop_config(link, bt3c_check_config_notpicky, NULL)) |
735 | goto found_port; | |
1da177e4 | 736 | |
ed58872a | 737 | BT_ERR("No usable port range found"); |
ed58872a | 738 | goto failed; |
1da177e4 | 739 | |
ed58872a | 740 | found_port: |
eb14120f | 741 | i = pcmcia_request_irq(link, &bt3c_interrupt); |
9ac3e58c | 742 | if (i != 0) |
eb14120f | 743 | goto failed; |
1da177e4 | 744 | |
fba395ee | 745 | i = pcmcia_request_configuration(link, &link->conf); |
9ac3e58c | 746 | if (i != 0) |
1da177e4 | 747 | goto failed; |
1da177e4 LT |
748 | |
749 | if (bt3c_open(info) != 0) | |
750 | goto failed; | |
751 | ||
15b99ac1 | 752 | return 0; |
1da177e4 | 753 | |
1da177e4 LT |
754 | failed: |
755 | bt3c_release(link); | |
15b99ac1 | 756 | return -ENODEV; |
1da177e4 LT |
757 | } |
758 | ||
759 | ||
fba395ee | 760 | static void bt3c_release(struct pcmcia_device *link) |
1da177e4 LT |
761 | { |
762 | bt3c_info_t *info = link->priv; | |
763 | ||
e2d40963 | 764 | bt3c_close(info); |
1da177e4 | 765 | |
fba395ee | 766 | pcmcia_disable_device(link); |
1da177e4 LT |
767 | } |
768 | ||
1da177e4 | 769 | |
a01c3ed4 DB |
770 | static struct pcmcia_device_id bt3c_ids[] = { |
771 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), | |
772 | PCMCIA_DEVICE_NULL | |
773 | }; | |
774 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); | |
775 | ||
1da177e4 LT |
776 | static struct pcmcia_driver bt3c_driver = { |
777 | .owner = THIS_MODULE, | |
778 | .drv = { | |
779 | .name = "bt3c_cs", | |
780 | }, | |
15b99ac1 | 781 | .probe = bt3c_probe, |
cc3b4866 | 782 | .remove = bt3c_detach, |
a01c3ed4 | 783 | .id_table = bt3c_ids, |
1da177e4 LT |
784 | }; |
785 | ||
786 | static int __init init_bt3c_cs(void) | |
787 | { | |
788 | return pcmcia_register_driver(&bt3c_driver); | |
789 | } | |
790 | ||
791 | ||
792 | static void __exit exit_bt3c_cs(void) | |
793 | { | |
794 | pcmcia_unregister_driver(&bt3c_driver); | |
1da177e4 LT |
795 | } |
796 | ||
797 | module_init(init_bt3c_cs); | |
798 | module_exit(exit_bt3c_cs); |