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Commit | Line | Data |
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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_types.h> |
49 | #include <pcmcia/cs.h> | |
50 | #include <pcmcia/cistpl.h> | |
51 | #include <pcmcia/ciscode.h> | |
52 | #include <pcmcia/ds.h> | |
53 | #include <pcmcia/cisreg.h> | |
54 | ||
55 | #include <net/bluetooth/bluetooth.h> | |
56 | #include <net/bluetooth/hci_core.h> | |
57 | ||
58 | ||
59 | ||
60 | /* ======================== Module parameters ======================== */ | |
61 | ||
62 | ||
63 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>, Jose Orlando Pereira <jop@di.uminho.pt>"); | |
64 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card"); | |
65 | MODULE_LICENSE("GPL"); | |
2312119a | 66 | MODULE_FIRMWARE("BT3CPCC.bin"); |
1da177e4 LT |
67 | |
68 | ||
69 | ||
70 | /* ======================== Local structures ======================== */ | |
71 | ||
72 | ||
73 | typedef struct bt3c_info_t { | |
fd238232 | 74 | struct pcmcia_device *p_dev; |
1da177e4 LT |
75 | dev_node_t node; |
76 | ||
77 | struct hci_dev *hdev; | |
78 | ||
79 | spinlock_t lock; /* For serializing operations */ | |
80 | ||
81 | struct sk_buff_head txq; | |
82 | unsigned long tx_state; | |
83 | ||
84 | unsigned long rx_state; | |
85 | unsigned long rx_count; | |
86 | struct sk_buff *rx_skb; | |
87 | } bt3c_info_t; | |
88 | ||
89 | ||
15b99ac1 | 90 | static int bt3c_config(struct pcmcia_device *link); |
fba395ee | 91 | static void bt3c_release(struct pcmcia_device *link); |
1da177e4 | 92 | |
cc3b4866 | 93 | static void bt3c_detach(struct pcmcia_device *p_dev); |
1da177e4 | 94 | |
1da177e4 LT |
95 | |
96 | /* Transmit states */ | |
97 | #define XMIT_SENDING 1 | |
98 | #define XMIT_WAKEUP 2 | |
99 | #define XMIT_WAITING 8 | |
100 | ||
101 | /* Receiver states */ | |
102 | #define RECV_WAIT_PACKET_TYPE 0 | |
103 | #define RECV_WAIT_EVENT_HEADER 1 | |
104 | #define RECV_WAIT_ACL_HEADER 2 | |
105 | #define RECV_WAIT_SCO_HEADER 3 | |
106 | #define RECV_WAIT_DATA 4 | |
107 | ||
108 | ||
109 | ||
110 | /* ======================== Special I/O functions ======================== */ | |
111 | ||
112 | ||
113 | #define DATA_L 0 | |
114 | #define DATA_H 1 | |
115 | #define ADDR_L 2 | |
116 | #define ADDR_H 3 | |
117 | #define CONTROL 4 | |
118 | ||
119 | ||
120 | static inline void bt3c_address(unsigned int iobase, unsigned short addr) | |
121 | { | |
122 | outb(addr & 0xff, iobase + ADDR_L); | |
123 | outb((addr >> 8) & 0xff, iobase + ADDR_H); | |
124 | } | |
125 | ||
126 | ||
127 | static inline void bt3c_put(unsigned int iobase, unsigned short value) | |
128 | { | |
129 | outb(value & 0xff, iobase + DATA_L); | |
130 | outb((value >> 8) & 0xff, iobase + DATA_H); | |
131 | } | |
132 | ||
133 | ||
134 | static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) | |
135 | { | |
136 | bt3c_address(iobase, addr); | |
137 | bt3c_put(iobase, value); | |
138 | } | |
139 | ||
140 | ||
141 | static inline unsigned short bt3c_get(unsigned int iobase) | |
142 | { | |
143 | unsigned short value = inb(iobase + DATA_L); | |
144 | ||
145 | value |= inb(iobase + DATA_H) << 8; | |
146 | ||
147 | return value; | |
148 | } | |
149 | ||
150 | ||
151 | static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) | |
152 | { | |
153 | bt3c_address(iobase, addr); | |
154 | ||
155 | return bt3c_get(iobase); | |
156 | } | |
157 | ||
158 | ||
159 | ||
160 | /* ======================== Interrupt handling ======================== */ | |
161 | ||
162 | ||
163 | static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) | |
164 | { | |
165 | int actual = 0; | |
166 | ||
167 | bt3c_address(iobase, 0x7080); | |
168 | ||
169 | /* Fill FIFO with current frame */ | |
170 | while (actual < len) { | |
171 | /* Transmit next byte */ | |
172 | bt3c_put(iobase, buf[actual]); | |
173 | actual++; | |
174 | } | |
175 | ||
176 | bt3c_io_write(iobase, 0x7005, actual); | |
177 | ||
178 | return actual; | |
179 | } | |
180 | ||
181 | ||
182 | static void bt3c_write_wakeup(bt3c_info_t *info) | |
183 | { | |
184 | if (!info) { | |
185 | BT_ERR("Unknown device"); | |
186 | return; | |
187 | } | |
188 | ||
189 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) | |
190 | return; | |
191 | ||
192 | do { | |
fd238232 | 193 | register unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
194 | register struct sk_buff *skb; |
195 | register int len; | |
196 | ||
e2d40963 | 197 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
198 | break; |
199 | ||
200 | ||
201 | if (!(skb = skb_dequeue(&(info->txq)))) { | |
202 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
203 | break; | |
204 | } | |
205 | ||
206 | /* Send frame */ | |
207 | len = bt3c_write(iobase, 256, skb->data, skb->len); | |
208 | ||
209 | if (len != skb->len) { | |
210 | BT_ERR("Very strange"); | |
211 | } | |
212 | ||
213 | kfree_skb(skb); | |
214 | ||
215 | info->hdev->stat.byte_tx += len; | |
216 | ||
217 | } while (0); | |
218 | } | |
219 | ||
220 | ||
221 | static void bt3c_receive(bt3c_info_t *info) | |
222 | { | |
223 | unsigned int iobase; | |
224 | int size = 0, avail; | |
225 | ||
226 | if (!info) { | |
227 | BT_ERR("Unknown device"); | |
228 | return; | |
229 | } | |
230 | ||
fd238232 | 231 | iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
232 | |
233 | avail = bt3c_read(iobase, 0x7006); | |
234 | //printk("bt3c_cs: receiving %d bytes\n", avail); | |
235 | ||
236 | bt3c_address(iobase, 0x7480); | |
237 | while (size < avail) { | |
238 | size++; | |
239 | info->hdev->stat.byte_rx++; | |
240 | ||
241 | /* Allocate packet */ | |
242 | if (info->rx_skb == NULL) { | |
243 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
244 | info->rx_count = 0; | |
245 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
246 | BT_ERR("Can't allocate mem for new packet"); | |
247 | return; | |
248 | } | |
249 | } | |
250 | ||
251 | ||
252 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
253 | ||
254 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 255 | bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L); |
1da177e4 | 256 | inb(iobase + DATA_H); |
0d48d939 | 257 | //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 | 258 | |
0d48d939 | 259 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
260 | |
261 | case HCI_EVENT_PKT: | |
262 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
263 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
264 | break; | |
265 | ||
266 | case HCI_ACLDATA_PKT: | |
267 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
268 | info->rx_count = HCI_ACL_HDR_SIZE; | |
269 | break; | |
270 | ||
271 | case HCI_SCODATA_PKT: | |
272 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
273 | info->rx_count = HCI_SCO_HDR_SIZE; | |
274 | break; | |
275 | ||
276 | default: | |
277 | /* Unknown packet */ | |
0d48d939 | 278 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
279 | info->hdev->stat.err_rx++; |
280 | clear_bit(HCI_RUNNING, &(info->hdev->flags)); | |
281 | ||
282 | kfree_skb(info->rx_skb); | |
283 | info->rx_skb = NULL; | |
284 | break; | |
285 | ||
286 | } | |
287 | ||
288 | } else { | |
289 | ||
290 | __u8 x = inb(iobase + DATA_L); | |
291 | ||
292 | *skb_put(info->rx_skb, 1) = x; | |
293 | inb(iobase + DATA_H); | |
294 | info->rx_count--; | |
295 | ||
296 | if (info->rx_count == 0) { | |
297 | ||
298 | int dlen; | |
299 | struct hci_event_hdr *eh; | |
300 | struct hci_acl_hdr *ah; | |
301 | struct hci_sco_hdr *sh; | |
302 | ||
303 | switch (info->rx_state) { | |
304 | ||
305 | case RECV_WAIT_EVENT_HEADER: | |
2a123b86 | 306 | eh = hci_event_hdr(info->rx_skb); |
1da177e4 LT |
307 | info->rx_state = RECV_WAIT_DATA; |
308 | info->rx_count = eh->plen; | |
309 | break; | |
310 | ||
311 | case RECV_WAIT_ACL_HEADER: | |
2a123b86 | 312 | ah = hci_acl_hdr(info->rx_skb); |
1da177e4 LT |
313 | dlen = __le16_to_cpu(ah->dlen); |
314 | info->rx_state = RECV_WAIT_DATA; | |
315 | info->rx_count = dlen; | |
316 | break; | |
317 | ||
318 | case RECV_WAIT_SCO_HEADER: | |
2a123b86 | 319 | sh = hci_sco_hdr(info->rx_skb); |
1da177e4 LT |
320 | info->rx_state = RECV_WAIT_DATA; |
321 | info->rx_count = sh->dlen; | |
322 | break; | |
323 | ||
324 | case RECV_WAIT_DATA: | |
325 | hci_recv_frame(info->rx_skb); | |
326 | info->rx_skb = NULL; | |
327 | break; | |
328 | ||
329 | } | |
330 | ||
331 | } | |
332 | ||
333 | } | |
334 | ||
335 | } | |
336 | ||
337 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
338 | } | |
339 | ||
340 | ||
7d12e780 | 341 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst) |
1da177e4 LT |
342 | { |
343 | bt3c_info_t *info = dev_inst; | |
344 | unsigned int iobase; | |
345 | int iir; | |
346 | ||
347 | if (!info || !info->hdev) { | |
348 | BT_ERR("Call of irq %d for unknown device", irq); | |
349 | return IRQ_NONE; | |
350 | } | |
351 | ||
fd238232 | 352 | iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
353 | |
354 | spin_lock(&(info->lock)); | |
355 | ||
356 | iir = inb(iobase + CONTROL); | |
357 | if (iir & 0x80) { | |
358 | int stat = bt3c_read(iobase, 0x7001); | |
359 | ||
360 | if ((stat & 0xff) == 0x7f) { | |
361 | BT_ERR("Very strange (stat=0x%04x)", stat); | |
362 | } else if ((stat & 0xff) != 0xff) { | |
363 | if (stat & 0x0020) { | |
364 | int stat = bt3c_read(iobase, 0x7002) & 0x10; | |
365 | BT_INFO("%s: Antenna %s", info->hdev->name, | |
366 | stat ? "out" : "in"); | |
367 | } | |
368 | if (stat & 0x0001) | |
369 | bt3c_receive(info); | |
370 | if (stat & 0x0002) { | |
371 | //BT_ERR("Ack (stat=0x%04x)", stat); | |
372 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
373 | bt3c_write_wakeup(info); | |
374 | } | |
375 | ||
376 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
377 | ||
378 | outb(iir, iobase + CONTROL); | |
379 | } | |
380 | } | |
381 | ||
382 | spin_unlock(&(info->lock)); | |
383 | ||
384 | return IRQ_HANDLED; | |
385 | } | |
386 | ||
387 | ||
388 | ||
389 | /* ======================== HCI interface ======================== */ | |
390 | ||
391 | ||
392 | static int bt3c_hci_flush(struct hci_dev *hdev) | |
393 | { | |
394 | bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data); | |
395 | ||
396 | /* Drop TX queue */ | |
397 | skb_queue_purge(&(info->txq)); | |
398 | ||
399 | return 0; | |
400 | } | |
401 | ||
402 | ||
403 | static int bt3c_hci_open(struct hci_dev *hdev) | |
404 | { | |
405 | set_bit(HCI_RUNNING, &(hdev->flags)); | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
410 | ||
411 | static int bt3c_hci_close(struct hci_dev *hdev) | |
412 | { | |
413 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
414 | return 0; | |
415 | ||
416 | bt3c_hci_flush(hdev); | |
417 | ||
418 | return 0; | |
419 | } | |
420 | ||
421 | ||
422 | static int bt3c_hci_send_frame(struct sk_buff *skb) | |
423 | { | |
424 | bt3c_info_t *info; | |
425 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
426 | unsigned long flags; | |
427 | ||
428 | if (!hdev) { | |
429 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
430 | return -ENODEV; | |
431 | } | |
432 | ||
433 | info = (bt3c_info_t *) (hdev->driver_data); | |
434 | ||
0d48d939 | 435 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
436 | case HCI_COMMAND_PKT: |
437 | hdev->stat.cmd_tx++; | |
438 | break; | |
439 | case HCI_ACLDATA_PKT: | |
440 | hdev->stat.acl_tx++; | |
441 | break; | |
442 | case HCI_SCODATA_PKT: | |
443 | hdev->stat.sco_tx++; | |
444 | break; | |
445 | }; | |
446 | ||
447 | /* Prepend skb with frame type */ | |
0d48d939 | 448 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
449 | skb_queue_tail(&(info->txq), skb); |
450 | ||
451 | spin_lock_irqsave(&(info->lock), flags); | |
452 | ||
453 | bt3c_write_wakeup(info); | |
454 | ||
455 | spin_unlock_irqrestore(&(info->lock), flags); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
460 | ||
461 | static void bt3c_hci_destruct(struct hci_dev *hdev) | |
462 | { | |
463 | } | |
464 | ||
465 | ||
466 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
467 | { | |
468 | return -ENOIOCTLCMD; | |
469 | } | |
470 | ||
471 | ||
472 | ||
473 | /* ======================== Card services HCI interaction ======================== */ | |
474 | ||
475 | ||
1da177e4 LT |
476 | static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count) |
477 | { | |
478 | char *ptr = (char *) firmware; | |
479 | char b[9]; | |
480 | unsigned int iobase, size, addr, fcs, tmp; | |
481 | int i, err = 0; | |
482 | ||
fd238232 | 483 | iobase = info->p_dev->io.BasePort1; |
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); | |
505 | size = simple_strtol(b, NULL, 16); | |
506 | ||
507 | memset(b, 0, sizeof(b)); | |
508 | memcpy(b, ptr + 4, 8); | |
509 | addr = simple_strtol(b, NULL, 16); | |
510 | ||
511 | memset(b, 0, sizeof(b)); | |
512 | memcpy(b, ptr + (size * 2) + 2, 2); | |
513 | fcs = simple_strtol(b, NULL, 16); | |
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); | |
533 | tmp = simple_strtol(b, NULL, 16); | |
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 | ||
583 | hdev->type = HCI_PCCARD; | |
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 | ||
660 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
661 | link->io.NumPorts1 = 8; | |
662 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
663 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
664 | ||
665 | link->irq.Handler = bt3c_interrupt; | |
666 | link->irq.Instance = info; | |
667 | ||
668 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
669 | link->conf.IntType = INT_MEMORY_AND_IO; |
670 | ||
15b99ac1 | 671 | return bt3c_config(link); |
1da177e4 LT |
672 | } |
673 | ||
674 | ||
fba395ee | 675 | static void bt3c_detach(struct pcmcia_device *link) |
1da177e4 LT |
676 | { |
677 | bt3c_info_t *info = link->priv; | |
1da177e4 | 678 | |
e2d40963 | 679 | bt3c_release(link); |
1da177e4 LT |
680 | kfree(info); |
681 | } | |
682 | ||
fba395ee | 683 | static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
684 | { |
685 | int i; | |
686 | ||
687 | i = pcmcia_get_tuple_data(handle, tuple); | |
688 | if (i != CS_SUCCESS) | |
689 | return i; | |
690 | ||
691 | return pcmcia_parse_tuple(handle, tuple, parse); | |
692 | } | |
693 | ||
fba395ee | 694 | static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
695 | { |
696 | if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS) | |
697 | return CS_NO_MORE_ITEMS; | |
698 | return get_tuple(handle, tuple, parse); | |
699 | } | |
700 | ||
fba395ee | 701 | static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
702 | { |
703 | if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS) | |
704 | return CS_NO_MORE_ITEMS; | |
705 | return get_tuple(handle, tuple, parse); | |
706 | } | |
707 | ||
15b99ac1 | 708 | static int bt3c_config(struct pcmcia_device *link) |
1da177e4 LT |
709 | { |
710 | static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; | |
1da177e4 LT |
711 | bt3c_info_t *info = link->priv; |
712 | tuple_t tuple; | |
713 | u_short buf[256]; | |
714 | cisparse_t parse; | |
715 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
af2b3b50 | 716 | int i, j, try; |
1da177e4 | 717 | |
1da177e4 LT |
718 | /* First pass: look for a config entry that looks normal. */ |
719 | tuple.TupleData = (cisdata_t *)buf; | |
720 | tuple.TupleOffset = 0; | |
721 | tuple.TupleDataMax = 255; | |
722 | tuple.Attributes = 0; | |
723 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
724 | /* Two tries: without IO aliases, then with aliases */ | |
725 | for (try = 0; try < 2; try++) { | |
fba395ee | 726 | i = first_tuple(link, &tuple, &parse); |
1da177e4 LT |
727 | while (i != CS_NO_MORE_ITEMS) { |
728 | if (i != CS_SUCCESS) | |
729 | goto next_entry; | |
730 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
70294b46 | 731 | link->conf.Vpp = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
1da177e4 LT |
732 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) { |
733 | link->conf.ConfigIndex = cf->index; | |
734 | link->io.BasePort1 = cf->io.win[0].base; | |
735 | link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK; | |
fba395ee | 736 | i = pcmcia_request_io(link, &link->io); |
1da177e4 LT |
737 | if (i == CS_SUCCESS) |
738 | goto found_port; | |
739 | } | |
740 | next_entry: | |
fba395ee | 741 | i = next_tuple(link, &tuple, &parse); |
1da177e4 LT |
742 | } |
743 | } | |
744 | ||
745 | /* Second pass: try to find an entry that isn't picky about | |
746 | its base address, then try to grab any standard serial port | |
747 | address, and finally try to get any free port. */ | |
fba395ee | 748 | i = first_tuple(link, &tuple, &parse); |
1da177e4 LT |
749 | while (i != CS_NO_MORE_ITEMS) { |
750 | if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { | |
751 | link->conf.ConfigIndex = cf->index; | |
752 | for (j = 0; j < 5; j++) { | |
753 | link->io.BasePort1 = base[j]; | |
754 | link->io.IOAddrLines = base[j] ? 16 : 3; | |
fba395ee | 755 | i = pcmcia_request_io(link, &link->io); |
1da177e4 LT |
756 | if (i == CS_SUCCESS) |
757 | goto found_port; | |
758 | } | |
759 | } | |
fba395ee | 760 | i = next_tuple(link, &tuple, &parse); |
1da177e4 LT |
761 | } |
762 | ||
763 | found_port: | |
764 | if (i != CS_SUCCESS) { | |
765 | BT_ERR("No usable port range found"); | |
fba395ee | 766 | cs_error(link, RequestIO, i); |
1da177e4 LT |
767 | goto failed; |
768 | } | |
769 | ||
fba395ee | 770 | i = pcmcia_request_irq(link, &link->irq); |
1da177e4 | 771 | if (i != CS_SUCCESS) { |
fba395ee | 772 | cs_error(link, RequestIRQ, i); |
1da177e4 LT |
773 | link->irq.AssignedIRQ = 0; |
774 | } | |
775 | ||
fba395ee | 776 | i = pcmcia_request_configuration(link, &link->conf); |
1da177e4 | 777 | if (i != CS_SUCCESS) { |
fba395ee | 778 | cs_error(link, RequestConfiguration, i); |
1da177e4 LT |
779 | goto failed; |
780 | } | |
781 | ||
782 | if (bt3c_open(info) != 0) | |
783 | goto failed; | |
784 | ||
785 | strcpy(info->node.dev_name, info->hdev->name); | |
fd238232 | 786 | link->dev_node = &info->node; |
1da177e4 | 787 | |
15b99ac1 | 788 | return 0; |
1da177e4 | 789 | |
1da177e4 LT |
790 | failed: |
791 | bt3c_release(link); | |
15b99ac1 | 792 | return -ENODEV; |
1da177e4 LT |
793 | } |
794 | ||
795 | ||
fba395ee | 796 | static void bt3c_release(struct pcmcia_device *link) |
1da177e4 LT |
797 | { |
798 | bt3c_info_t *info = link->priv; | |
799 | ||
e2d40963 | 800 | bt3c_close(info); |
1da177e4 | 801 | |
fba395ee | 802 | pcmcia_disable_device(link); |
1da177e4 LT |
803 | } |
804 | ||
1da177e4 | 805 | |
a01c3ed4 DB |
806 | static struct pcmcia_device_id bt3c_ids[] = { |
807 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), | |
808 | PCMCIA_DEVICE_NULL | |
809 | }; | |
810 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); | |
811 | ||
1da177e4 LT |
812 | static struct pcmcia_driver bt3c_driver = { |
813 | .owner = THIS_MODULE, | |
814 | .drv = { | |
815 | .name = "bt3c_cs", | |
816 | }, | |
15b99ac1 | 817 | .probe = bt3c_probe, |
cc3b4866 | 818 | .remove = bt3c_detach, |
a01c3ed4 | 819 | .id_table = bt3c_ids, |
1da177e4 LT |
820 | }; |
821 | ||
822 | static int __init init_bt3c_cs(void) | |
823 | { | |
824 | return pcmcia_register_driver(&bt3c_driver); | |
825 | } | |
826 | ||
827 | ||
828 | static void __exit exit_bt3c_cs(void) | |
829 | { | |
830 | pcmcia_unregister_driver(&bt3c_driver); | |
1da177e4 LT |
831 | } |
832 | ||
833 | module_init(init_bt3c_cs); | |
834 | module_exit(exit_bt3c_cs); |