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> | |
1da177e4 LT |
42 | #include <asm/io.h> |
43 | ||
44 | #include <linux/device.h> | |
45 | #include <linux/firmware.h> | |
46 | ||
1da177e4 LT |
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 | ||
63fbd24e | 60 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); |
1da177e4 LT |
61 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card"); |
62 | MODULE_LICENSE("GPL"); | |
2312119a | 63 | MODULE_FIRMWARE("BT3CPCC.bin"); |
1da177e4 LT |
64 | |
65 | ||
66 | ||
67 | /* ======================== Local structures ======================== */ | |
68 | ||
69 | ||
70 | typedef struct bt3c_info_t { | |
fd238232 | 71 | struct pcmcia_device *p_dev; |
1da177e4 LT |
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 | } bt3c_info_t; | |
84 | ||
85 | ||
15b99ac1 | 86 | static int bt3c_config(struct pcmcia_device *link); |
fba395ee | 87 | static void bt3c_release(struct pcmcia_device *link); |
1da177e4 | 88 | |
cc3b4866 | 89 | static void bt3c_detach(struct pcmcia_device *p_dev); |
1da177e4 | 90 | |
1da177e4 LT |
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 RECV_WAIT_EVENT_HEADER 1 | |
100 | #define RECV_WAIT_ACL_HEADER 2 | |
101 | #define RECV_WAIT_SCO_HEADER 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(addr & 0xff, iobase + ADDR_L); | |
119 | outb((addr >> 8) & 0xff, iobase + ADDR_H); | |
120 | } | |
121 | ||
122 | ||
123 | static inline void bt3c_put(unsigned int iobase, unsigned short value) | |
124 | { | |
125 | outb(value & 0xff, iobase + DATA_L); | |
126 | outb((value >> 8) & 0xff, 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(iobase + DATA_L); | |
140 | ||
141 | value |= inb(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, 0x7080); | |
164 | ||
165 | /* Fill FIFO with current frame */ | |
166 | while (actual < len) { | |
167 | /* Transmit next byte */ | |
168 | bt3c_put(iobase, buf[actual]); | |
169 | actual++; | |
170 | } | |
171 | ||
172 | bt3c_io_write(iobase, 0x7005, actual); | |
173 | ||
174 | return actual; | |
175 | } | |
176 | ||
177 | ||
178 | static void bt3c_write_wakeup(bt3c_info_t *info) | |
179 | { | |
180 | if (!info) { | |
181 | BT_ERR("Unknown device"); | |
182 | return; | |
183 | } | |
184 | ||
185 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) | |
186 | return; | |
187 | ||
188 | do { | |
fc5fef61 | 189 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 | 190 | register struct sk_buff *skb; |
fc5fef61 | 191 | int len; |
1da177e4 | 192 | |
e2d40963 | 193 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
194 | break; |
195 | ||
196 | ||
197 | if (!(skb = skb_dequeue(&(info->txq)))) { | |
198 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
199 | break; | |
200 | } | |
201 | ||
202 | /* Send frame */ | |
203 | len = bt3c_write(iobase, 256, skb->data, skb->len); | |
204 | ||
205 | if (len != skb->len) { | |
206 | BT_ERR("Very strange"); | |
207 | } | |
208 | ||
209 | kfree_skb(skb); | |
210 | ||
211 | info->hdev->stat.byte_tx += len; | |
212 | ||
213 | } while (0); | |
214 | } | |
215 | ||
216 | ||
217 | static void bt3c_receive(bt3c_info_t *info) | |
218 | { | |
219 | unsigned int iobase; | |
220 | int size = 0, avail; | |
221 | ||
222 | if (!info) { | |
223 | BT_ERR("Unknown device"); | |
224 | return; | |
225 | } | |
226 | ||
9a017a91 | 227 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
228 | |
229 | avail = bt3c_read(iobase, 0x7006); | |
230 | //printk("bt3c_cs: receiving %d bytes\n", avail); | |
231 | ||
232 | bt3c_address(iobase, 0x7480); | |
233 | while (size < avail) { | |
234 | size++; | |
235 | info->hdev->stat.byte_rx++; | |
236 | ||
237 | /* Allocate packet */ | |
238 | if (info->rx_skb == NULL) { | |
239 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
240 | info->rx_count = 0; | |
241 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
242 | BT_ERR("Can't allocate mem for new packet"); | |
243 | return; | |
244 | } | |
245 | } | |
246 | ||
247 | ||
248 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
249 | ||
250 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 251 | bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L); |
1da177e4 | 252 | inb(iobase + DATA_H); |
0d48d939 | 253 | //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 | 254 | |
0d48d939 | 255 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
256 | |
257 | case HCI_EVENT_PKT: | |
258 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
259 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
260 | break; | |
261 | ||
262 | case HCI_ACLDATA_PKT: | |
263 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
264 | info->rx_count = HCI_ACL_HDR_SIZE; | |
265 | break; | |
266 | ||
267 | case HCI_SCODATA_PKT: | |
268 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
269 | info->rx_count = HCI_SCO_HDR_SIZE; | |
270 | break; | |
271 | ||
272 | default: | |
273 | /* Unknown packet */ | |
0d48d939 | 274 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
275 | info->hdev->stat.err_rx++; |
276 | clear_bit(HCI_RUNNING, &(info->hdev->flags)); | |
277 | ||
278 | kfree_skb(info->rx_skb); | |
279 | info->rx_skb = NULL; | |
280 | break; | |
281 | ||
282 | } | |
283 | ||
284 | } else { | |
285 | ||
286 | __u8 x = inb(iobase + DATA_L); | |
287 | ||
288 | *skb_put(info->rx_skb, 1) = x; | |
289 | inb(iobase + DATA_H); | |
290 | info->rx_count--; | |
291 | ||
292 | if (info->rx_count == 0) { | |
293 | ||
294 | int dlen; | |
295 | struct hci_event_hdr *eh; | |
296 | struct hci_acl_hdr *ah; | |
297 | struct hci_sco_hdr *sh; | |
298 | ||
299 | switch (info->rx_state) { | |
300 | ||
301 | case RECV_WAIT_EVENT_HEADER: | |
2a123b86 | 302 | eh = hci_event_hdr(info->rx_skb); |
1da177e4 LT |
303 | info->rx_state = RECV_WAIT_DATA; |
304 | info->rx_count = eh->plen; | |
305 | break; | |
306 | ||
307 | case RECV_WAIT_ACL_HEADER: | |
2a123b86 | 308 | ah = hci_acl_hdr(info->rx_skb); |
1da177e4 LT |
309 | dlen = __le16_to_cpu(ah->dlen); |
310 | info->rx_state = RECV_WAIT_DATA; | |
311 | info->rx_count = dlen; | |
312 | break; | |
313 | ||
314 | case RECV_WAIT_SCO_HEADER: | |
2a123b86 | 315 | sh = hci_sco_hdr(info->rx_skb); |
1da177e4 LT |
316 | info->rx_state = RECV_WAIT_DATA; |
317 | info->rx_count = sh->dlen; | |
318 | break; | |
319 | ||
320 | case RECV_WAIT_DATA: | |
321 | hci_recv_frame(info->rx_skb); | |
322 | info->rx_skb = NULL; | |
323 | break; | |
324 | ||
325 | } | |
326 | ||
327 | } | |
328 | ||
329 | } | |
330 | ||
331 | } | |
332 | ||
333 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
334 | } | |
335 | ||
336 | ||
7d12e780 | 337 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) |
1da177e4 LT |
338 | { |
339 | bt3c_info_t *info = dev_inst; | |
340 | unsigned int iobase; | |
341 | int iir; | |
aafcf998 | 342 | irqreturn_t r = IRQ_NONE; |
1da177e4 | 343 | |
7427847d MF |
344 | if (!info || !info->hdev) |
345 | /* our irq handler is shared */ | |
346 | return IRQ_NONE; | |
1da177e4 | 347 | |
9a017a91 | 348 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
349 | |
350 | spin_lock(&(info->lock)); | |
351 | ||
352 | iir = inb(iobase + CONTROL); | |
353 | if (iir & 0x80) { | |
354 | int stat = bt3c_read(iobase, 0x7001); | |
355 | ||
356 | if ((stat & 0xff) == 0x7f) { | |
357 | BT_ERR("Very strange (stat=0x%04x)", stat); | |
358 | } else if ((stat & 0xff) != 0xff) { | |
359 | if (stat & 0x0020) { | |
34a55eda | 360 | int status = bt3c_read(iobase, 0x7002) & 0x10; |
1da177e4 | 361 | BT_INFO("%s: Antenna %s", info->hdev->name, |
34a55eda | 362 | status ? "out" : "in"); |
1da177e4 LT |
363 | } |
364 | if (stat & 0x0001) | |
365 | bt3c_receive(info); | |
366 | if (stat & 0x0002) { | |
367 | //BT_ERR("Ack (stat=0x%04x)", stat); | |
368 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
369 | bt3c_write_wakeup(info); | |
370 | } | |
371 | ||
372 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
373 | ||
374 | outb(iir, iobase + CONTROL); | |
375 | } | |
aafcf998 | 376 | r = IRQ_HANDLED; |
1da177e4 LT |
377 | } |
378 | ||
379 | spin_unlock(&(info->lock)); | |
380 | ||
aafcf998 | 381 | return r; |
1da177e4 LT |
382 | } |
383 | ||
384 | ||
385 | ||
386 | /* ======================== HCI interface ======================== */ | |
387 | ||
388 | ||
389 | static int bt3c_hci_flush(struct hci_dev *hdev) | |
390 | { | |
155961e8 | 391 | bt3c_info_t *info = hci_get_drvdata(hdev); |
1da177e4 LT |
392 | |
393 | /* Drop TX queue */ | |
394 | skb_queue_purge(&(info->txq)); | |
395 | ||
396 | return 0; | |
397 | } | |
398 | ||
399 | ||
400 | static int bt3c_hci_open(struct hci_dev *hdev) | |
401 | { | |
402 | set_bit(HCI_RUNNING, &(hdev->flags)); | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | ||
408 | static int bt3c_hci_close(struct hci_dev *hdev) | |
409 | { | |
410 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
411 | return 0; | |
412 | ||
413 | bt3c_hci_flush(hdev); | |
414 | ||
415 | return 0; | |
416 | } | |
417 | ||
418 | ||
419 | static int bt3c_hci_send_frame(struct sk_buff *skb) | |
420 | { | |
421 | bt3c_info_t *info; | |
422 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
423 | unsigned long flags; | |
424 | ||
425 | if (!hdev) { | |
426 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
427 | return -ENODEV; | |
428 | } | |
429 | ||
155961e8 | 430 | info = hci_get_drvdata(hdev); |
1da177e4 | 431 | |
0d48d939 | 432 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
433 | case HCI_COMMAND_PKT: |
434 | hdev->stat.cmd_tx++; | |
435 | break; | |
436 | case HCI_ACLDATA_PKT: | |
437 | hdev->stat.acl_tx++; | |
438 | break; | |
439 | case HCI_SCODATA_PKT: | |
440 | hdev->stat.sco_tx++; | |
441 | break; | |
442 | }; | |
443 | ||
444 | /* Prepend skb with frame type */ | |
0d48d939 | 445 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
446 | skb_queue_tail(&(info->txq), skb); |
447 | ||
448 | spin_lock_irqsave(&(info->lock), flags); | |
449 | ||
450 | bt3c_write_wakeup(info); | |
451 | ||
452 | spin_unlock_irqrestore(&(info->lock), flags); | |
453 | ||
454 | return 0; | |
455 | } | |
456 | ||
457 | ||
1da177e4 LT |
458 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) |
459 | { | |
460 | return -ENOIOCTLCMD; | |
461 | } | |
462 | ||
463 | ||
464 | ||
465 | /* ======================== Card services HCI interaction ======================== */ | |
466 | ||
467 | ||
8187b4fb DW |
468 | static int bt3c_load_firmware(bt3c_info_t *info, const unsigned char *firmware, |
469 | int count) | |
1da177e4 LT |
470 | { |
471 | char *ptr = (char *) firmware; | |
472 | char b[9]; | |
473 | unsigned int iobase, size, addr, fcs, tmp; | |
474 | int i, err = 0; | |
475 | ||
9a017a91 | 476 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
477 | |
478 | /* Reset */ | |
479 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
480 | bt3c_io_write(iobase, 0x8040, 0x0400); | |
481 | ||
482 | udelay(1); | |
483 | ||
484 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
485 | ||
486 | udelay(17); | |
487 | ||
488 | /* Load */ | |
489 | while (count) { | |
490 | if (ptr[0] != 'S') { | |
491 | BT_ERR("Bad address in firmware"); | |
492 | err = -EFAULT; | |
493 | goto error; | |
494 | } | |
495 | ||
496 | memset(b, 0, sizeof(b)); | |
497 | memcpy(b, ptr + 2, 2); | |
51a6fbc8 | 498 | size = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
499 | |
500 | memset(b, 0, sizeof(b)); | |
501 | memcpy(b, ptr + 4, 8); | |
51a6fbc8 | 502 | addr = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
503 | |
504 | memset(b, 0, sizeof(b)); | |
505 | memcpy(b, ptr + (size * 2) + 2, 2); | |
51a6fbc8 | 506 | fcs = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
507 | |
508 | memset(b, 0, sizeof(b)); | |
509 | for (tmp = 0, i = 0; i < size; i++) { | |
510 | memcpy(b, ptr + (i * 2) + 2, 2); | |
511 | tmp += simple_strtol(b, NULL, 16); | |
512 | } | |
513 | ||
514 | if (((tmp + fcs) & 0xff) != 0xff) { | |
515 | BT_ERR("Checksum error in firmware"); | |
516 | err = -EILSEQ; | |
517 | goto error; | |
518 | } | |
519 | ||
520 | if (ptr[1] == '3') { | |
521 | bt3c_address(iobase, addr); | |
522 | ||
523 | memset(b, 0, sizeof(b)); | |
524 | for (i = 0; i < (size - 4) / 2; i++) { | |
525 | memcpy(b, ptr + (i * 4) + 12, 4); | |
51a6fbc8 | 526 | tmp = simple_strtoul(b, NULL, 16); |
1da177e4 LT |
527 | bt3c_put(iobase, tmp); |
528 | } | |
529 | } | |
530 | ||
531 | ptr += (size * 2) + 6; | |
532 | count -= (size * 2) + 6; | |
533 | } | |
534 | ||
535 | udelay(17); | |
536 | ||
537 | /* Boot */ | |
538 | bt3c_address(iobase, 0x3000); | |
539 | outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); | |
540 | ||
541 | error: | |
542 | udelay(17); | |
543 | ||
544 | /* Clear */ | |
545 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
546 | bt3c_io_write(iobase, 0x7005, 0x0000); | |
547 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
548 | ||
549 | return err; | |
550 | } | |
551 | ||
552 | ||
553 | static int bt3c_open(bt3c_info_t *info) | |
554 | { | |
555 | const struct firmware *firmware; | |
556 | struct hci_dev *hdev; | |
557 | int err; | |
558 | ||
559 | spin_lock_init(&(info->lock)); | |
560 | ||
561 | skb_queue_head_init(&(info->txq)); | |
562 | ||
563 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
564 | info->rx_count = 0; | |
565 | info->rx_skb = NULL; | |
566 | ||
567 | /* Initialize HCI device */ | |
568 | hdev = hci_alloc_dev(); | |
569 | if (!hdev) { | |
570 | BT_ERR("Can't allocate HCI device"); | |
571 | return -ENOMEM; | |
572 | } | |
573 | ||
574 | info->hdev = hdev; | |
575 | ||
c13854ce | 576 | hdev->bus = HCI_PCCARD; |
155961e8 | 577 | hci_set_drvdata(hdev, info); |
27d35284 | 578 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 LT |
579 | |
580 | hdev->open = bt3c_hci_open; | |
581 | hdev->close = bt3c_hci_close; | |
582 | hdev->flush = bt3c_hci_flush; | |
583 | hdev->send = bt3c_hci_send_frame; | |
1da177e4 LT |
584 | hdev->ioctl = bt3c_hci_ioctl; |
585 | ||
1da177e4 | 586 | /* Load firmware */ |
fd238232 | 587 | err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev); |
1da177e4 LT |
588 | if (err < 0) { |
589 | BT_ERR("Firmware request failed"); | |
590 | goto error; | |
591 | } | |
592 | ||
593 | err = bt3c_load_firmware(info, firmware->data, firmware->size); | |
594 | ||
595 | release_firmware(firmware); | |
596 | ||
597 | if (err < 0) { | |
598 | BT_ERR("Firmware loading failed"); | |
599 | goto error; | |
600 | } | |
601 | ||
602 | /* Timeout before it is safe to send the first HCI packet */ | |
603 | msleep(1000); | |
604 | ||
605 | /* Register HCI device */ | |
606 | err = hci_register_dev(hdev); | |
607 | if (err < 0) { | |
608 | BT_ERR("Can't register HCI device"); | |
609 | goto error; | |
610 | } | |
611 | ||
612 | return 0; | |
613 | ||
614 | error: | |
615 | info->hdev = NULL; | |
616 | hci_free_dev(hdev); | |
617 | return err; | |
618 | } | |
619 | ||
620 | ||
621 | static int bt3c_close(bt3c_info_t *info) | |
622 | { | |
623 | struct hci_dev *hdev = info->hdev; | |
624 | ||
625 | if (!hdev) | |
626 | return -ENODEV; | |
627 | ||
628 | bt3c_hci_close(hdev); | |
629 | ||
13ea4015 | 630 | hci_unregister_dev(hdev); |
1da177e4 LT |
631 | hci_free_dev(hdev); |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
15b99ac1 | 636 | static int bt3c_probe(struct pcmcia_device *link) |
1da177e4 LT |
637 | { |
638 | bt3c_info_t *info; | |
1da177e4 LT |
639 | |
640 | /* Create new info device */ | |
4f61cb18 | 641 | info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); |
1da177e4 | 642 | if (!info) |
f8cfa618 | 643 | return -ENOMEM; |
1da177e4 | 644 | |
fba395ee | 645 | info->p_dev = link; |
1da177e4 LT |
646 | link->priv = info; |
647 | ||
00990e7c DB |
648 | link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP | |
649 | CONF_AUTO_SET_IO; | |
1da177e4 | 650 | |
15b99ac1 | 651 | return bt3c_config(link); |
1da177e4 LT |
652 | } |
653 | ||
654 | ||
fba395ee | 655 | static void bt3c_detach(struct pcmcia_device *link) |
1da177e4 | 656 | { |
e2d40963 | 657 | bt3c_release(link); |
1da177e4 LT |
658 | } |
659 | ||
00990e7c | 660 | static int bt3c_check_config(struct pcmcia_device *p_dev, void *priv_data) |
1da177e4 | 661 | { |
00990e7c | 662 | int *try = priv_data; |
90abdc3b | 663 | |
510df251 | 664 | if (!try) |
00990e7c DB |
665 | p_dev->io_lines = 16; |
666 | ||
667 | if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0)) | |
668 | return -EINVAL; | |
669 | ||
670 | p_dev->resource[0]->end = 8; | |
671 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
672 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
673 | ||
674 | return pcmcia_request_io(p_dev); | |
1da177e4 LT |
675 | } |
676 | ||
ed58872a | 677 | static int bt3c_check_config_notpicky(struct pcmcia_device *p_dev, |
ed58872a | 678 | void *priv_data) |
1da177e4 | 679 | { |
ed58872a DB |
680 | static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; |
681 | int j; | |
682 | ||
00990e7c DB |
683 | if (p_dev->io_lines > 3) |
684 | return -ENODEV; | |
685 | ||
686 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
687 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
688 | p_dev->resource[0]->end = 8; | |
689 | ||
690 | for (j = 0; j < 5; j++) { | |
691 | p_dev->resource[0]->start = base[j]; | |
692 | p_dev->io_lines = base[j] ? 16 : 3; | |
693 | if (!pcmcia_request_io(p_dev)) | |
694 | return 0; | |
ed58872a DB |
695 | } |
696 | return -ENODEV; | |
1da177e4 LT |
697 | } |
698 | ||
15b99ac1 | 699 | static int bt3c_config(struct pcmcia_device *link) |
1da177e4 | 700 | { |
1da177e4 | 701 | bt3c_info_t *info = link->priv; |
ed58872a DB |
702 | int i; |
703 | unsigned long try; | |
704 | ||
705 | /* First pass: look for a config entry that looks normal. | |
706 | Two tries: without IO aliases, then with aliases */ | |
707 | for (try = 0; try < 2; try++) | |
708 | if (!pcmcia_loop_config(link, bt3c_check_config, (void *) try)) | |
709 | goto found_port; | |
1da177e4 LT |
710 | |
711 | /* Second pass: try to find an entry that isn't picky about | |
712 | its base address, then try to grab any standard serial port | |
713 | address, and finally try to get any free port. */ | |
ed58872a DB |
714 | if (!pcmcia_loop_config(link, bt3c_check_config_notpicky, NULL)) |
715 | goto found_port; | |
1da177e4 | 716 | |
ed58872a | 717 | BT_ERR("No usable port range found"); |
ed58872a | 718 | goto failed; |
1da177e4 | 719 | |
ed58872a | 720 | found_port: |
eb14120f | 721 | i = pcmcia_request_irq(link, &bt3c_interrupt); |
9ac3e58c | 722 | if (i != 0) |
eb14120f | 723 | goto failed; |
1da177e4 | 724 | |
1ac71e5a | 725 | i = pcmcia_enable_device(link); |
9ac3e58c | 726 | if (i != 0) |
1da177e4 | 727 | goto failed; |
1da177e4 LT |
728 | |
729 | if (bt3c_open(info) != 0) | |
730 | goto failed; | |
731 | ||
15b99ac1 | 732 | return 0; |
1da177e4 | 733 | |
1da177e4 LT |
734 | failed: |
735 | bt3c_release(link); | |
15b99ac1 | 736 | return -ENODEV; |
1da177e4 LT |
737 | } |
738 | ||
739 | ||
fba395ee | 740 | static void bt3c_release(struct pcmcia_device *link) |
1da177e4 LT |
741 | { |
742 | bt3c_info_t *info = link->priv; | |
743 | ||
e2d40963 | 744 | bt3c_close(info); |
1da177e4 | 745 | |
fba395ee | 746 | pcmcia_disable_device(link); |
1da177e4 LT |
747 | } |
748 | ||
1da177e4 | 749 | |
25f8f54f | 750 | static const struct pcmcia_device_id bt3c_ids[] = { |
a01c3ed4 DB |
751 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), |
752 | PCMCIA_DEVICE_NULL | |
753 | }; | |
754 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); | |
755 | ||
1da177e4 LT |
756 | static struct pcmcia_driver bt3c_driver = { |
757 | .owner = THIS_MODULE, | |
2e9b981a | 758 | .name = "bt3c_cs", |
15b99ac1 | 759 | .probe = bt3c_probe, |
cc3b4866 | 760 | .remove = bt3c_detach, |
a01c3ed4 | 761 | .id_table = bt3c_ids, |
1da177e4 LT |
762 | }; |
763 | ||
764 | static int __init init_bt3c_cs(void) | |
765 | { | |
766 | return pcmcia_register_driver(&bt3c_driver); | |
767 | } | |
768 | ||
769 | ||
770 | static void __exit exit_bt3c_cs(void) | |
771 | { | |
772 | pcmcia_unregister_driver(&bt3c_driver); | |
1da177e4 LT |
773 | } |
774 | ||
775 | module_init(init_bt3c_cs); | |
776 | module_exit(exit_bt3c_cs); |