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_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 | ||
ac019360 | 347 | BUG_ON(!info->hdev); |
1da177e4 | 348 | |
fd238232 | 349 | iobase = info->p_dev->io.BasePort1; |
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) { | |
361 | int stat = bt3c_read(iobase, 0x7002) & 0x10; | |
362 | BT_INFO("%s: Antenna %s", info->hdev->name, | |
363 | stat ? "out" : "in"); | |
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 | } | |
377 | } | |
378 | ||
379 | spin_unlock(&(info->lock)); | |
380 | ||
381 | return IRQ_HANDLED; | |
382 | } | |
383 | ||
384 | ||
385 | ||
386 | /* ======================== HCI interface ======================== */ | |
387 | ||
388 | ||
389 | static int bt3c_hci_flush(struct hci_dev *hdev) | |
390 | { | |
391 | bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data); | |
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 | ||
430 | info = (bt3c_info_t *) (hdev->driver_data); | |
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 | ||
458 | static void bt3c_hci_destruct(struct hci_dev *hdev) | |
459 | { | |
460 | } | |
461 | ||
462 | ||
463 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
464 | { | |
465 | return -ENOIOCTLCMD; | |
466 | } | |
467 | ||
468 | ||
469 | ||
470 | /* ======================== Card services HCI interaction ======================== */ | |
471 | ||
472 | ||
1da177e4 LT |
473 | static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count) |
474 | { | |
475 | char *ptr = (char *) firmware; | |
476 | char b[9]; | |
477 | unsigned int iobase, size, addr, fcs, tmp; | |
478 | int i, err = 0; | |
479 | ||
fd238232 | 480 | iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
481 | |
482 | /* Reset */ | |
483 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
484 | bt3c_io_write(iobase, 0x8040, 0x0400); | |
485 | ||
486 | udelay(1); | |
487 | ||
488 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
489 | ||
490 | udelay(17); | |
491 | ||
492 | /* Load */ | |
493 | while (count) { | |
494 | if (ptr[0] != 'S') { | |
495 | BT_ERR("Bad address in firmware"); | |
496 | err = -EFAULT; | |
497 | goto error; | |
498 | } | |
499 | ||
500 | memset(b, 0, sizeof(b)); | |
501 | memcpy(b, ptr + 2, 2); | |
502 | size = simple_strtol(b, NULL, 16); | |
503 | ||
504 | memset(b, 0, sizeof(b)); | |
505 | memcpy(b, ptr + 4, 8); | |
506 | addr = simple_strtol(b, NULL, 16); | |
507 | ||
508 | memset(b, 0, sizeof(b)); | |
509 | memcpy(b, ptr + (size * 2) + 2, 2); | |
510 | fcs = simple_strtol(b, NULL, 16); | |
511 | ||
512 | memset(b, 0, sizeof(b)); | |
513 | for (tmp = 0, i = 0; i < size; i++) { | |
514 | memcpy(b, ptr + (i * 2) + 2, 2); | |
515 | tmp += simple_strtol(b, NULL, 16); | |
516 | } | |
517 | ||
518 | if (((tmp + fcs) & 0xff) != 0xff) { | |
519 | BT_ERR("Checksum error in firmware"); | |
520 | err = -EILSEQ; | |
521 | goto error; | |
522 | } | |
523 | ||
524 | if (ptr[1] == '3') { | |
525 | bt3c_address(iobase, addr); | |
526 | ||
527 | memset(b, 0, sizeof(b)); | |
528 | for (i = 0; i < (size - 4) / 2; i++) { | |
529 | memcpy(b, ptr + (i * 4) + 12, 4); | |
530 | tmp = simple_strtol(b, NULL, 16); | |
531 | bt3c_put(iobase, tmp); | |
532 | } | |
533 | } | |
534 | ||
535 | ptr += (size * 2) + 6; | |
536 | count -= (size * 2) + 6; | |
537 | } | |
538 | ||
539 | udelay(17); | |
540 | ||
541 | /* Boot */ | |
542 | bt3c_address(iobase, 0x3000); | |
543 | outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); | |
544 | ||
545 | error: | |
546 | udelay(17); | |
547 | ||
548 | /* Clear */ | |
549 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
550 | bt3c_io_write(iobase, 0x7005, 0x0000); | |
551 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
552 | ||
553 | return err; | |
554 | } | |
555 | ||
556 | ||
557 | static int bt3c_open(bt3c_info_t *info) | |
558 | { | |
559 | const struct firmware *firmware; | |
560 | struct hci_dev *hdev; | |
561 | int err; | |
562 | ||
563 | spin_lock_init(&(info->lock)); | |
564 | ||
565 | skb_queue_head_init(&(info->txq)); | |
566 | ||
567 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
568 | info->rx_count = 0; | |
569 | info->rx_skb = NULL; | |
570 | ||
571 | /* Initialize HCI device */ | |
572 | hdev = hci_alloc_dev(); | |
573 | if (!hdev) { | |
574 | BT_ERR("Can't allocate HCI device"); | |
575 | return -ENOMEM; | |
576 | } | |
577 | ||
578 | info->hdev = hdev; | |
579 | ||
580 | hdev->type = HCI_PCCARD; | |
581 | hdev->driver_data = info; | |
27d35284 | 582 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 LT |
583 | |
584 | hdev->open = bt3c_hci_open; | |
585 | hdev->close = bt3c_hci_close; | |
586 | hdev->flush = bt3c_hci_flush; | |
587 | hdev->send = bt3c_hci_send_frame; | |
588 | hdev->destruct = bt3c_hci_destruct; | |
589 | hdev->ioctl = bt3c_hci_ioctl; | |
590 | ||
591 | hdev->owner = THIS_MODULE; | |
592 | ||
593 | /* Load firmware */ | |
fd238232 | 594 | err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev); |
1da177e4 LT |
595 | if (err < 0) { |
596 | BT_ERR("Firmware request failed"); | |
597 | goto error; | |
598 | } | |
599 | ||
600 | err = bt3c_load_firmware(info, firmware->data, firmware->size); | |
601 | ||
602 | release_firmware(firmware); | |
603 | ||
604 | if (err < 0) { | |
605 | BT_ERR("Firmware loading failed"); | |
606 | goto error; | |
607 | } | |
608 | ||
609 | /* Timeout before it is safe to send the first HCI packet */ | |
610 | msleep(1000); | |
611 | ||
612 | /* Register HCI device */ | |
613 | err = hci_register_dev(hdev); | |
614 | if (err < 0) { | |
615 | BT_ERR("Can't register HCI device"); | |
616 | goto error; | |
617 | } | |
618 | ||
619 | return 0; | |
620 | ||
621 | error: | |
622 | info->hdev = NULL; | |
623 | hci_free_dev(hdev); | |
624 | return err; | |
625 | } | |
626 | ||
627 | ||
628 | static int bt3c_close(bt3c_info_t *info) | |
629 | { | |
630 | struct hci_dev *hdev = info->hdev; | |
631 | ||
632 | if (!hdev) | |
633 | return -ENODEV; | |
634 | ||
635 | bt3c_hci_close(hdev); | |
636 | ||
637 | if (hci_unregister_dev(hdev) < 0) | |
638 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
639 | ||
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 | ||
657 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
658 | link->io.NumPorts1 = 8; | |
659 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
660 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
661 | ||
662 | link->irq.Handler = bt3c_interrupt; | |
663 | link->irq.Instance = info; | |
664 | ||
665 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
666 | link->conf.IntType = INT_MEMORY_AND_IO; |
667 | ||
15b99ac1 | 668 | return bt3c_config(link); |
1da177e4 LT |
669 | } |
670 | ||
671 | ||
fba395ee | 672 | static void bt3c_detach(struct pcmcia_device *link) |
1da177e4 LT |
673 | { |
674 | bt3c_info_t *info = link->priv; | |
1da177e4 | 675 | |
e2d40963 | 676 | bt3c_release(link); |
1da177e4 LT |
677 | kfree(info); |
678 | } | |
679 | ||
fba395ee | 680 | static int get_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
681 | { |
682 | int i; | |
683 | ||
684 | i = pcmcia_get_tuple_data(handle, tuple); | |
685 | if (i != CS_SUCCESS) | |
686 | return i; | |
687 | ||
688 | return pcmcia_parse_tuple(handle, tuple, parse); | |
689 | } | |
690 | ||
fba395ee | 691 | static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
692 | { |
693 | if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS) | |
694 | return CS_NO_MORE_ITEMS; | |
695 | return get_tuple(handle, tuple, parse); | |
696 | } | |
697 | ||
fba395ee | 698 | static int next_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
699 | { |
700 | if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS) | |
701 | return CS_NO_MORE_ITEMS; | |
702 | return get_tuple(handle, tuple, parse); | |
703 | } | |
704 | ||
15b99ac1 | 705 | static int bt3c_config(struct pcmcia_device *link) |
1da177e4 LT |
706 | { |
707 | static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; | |
1da177e4 LT |
708 | bt3c_info_t *info = link->priv; |
709 | tuple_t tuple; | |
710 | u_short buf[256]; | |
711 | cisparse_t parse; | |
712 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
af2b3b50 | 713 | int i, j, try; |
1da177e4 | 714 | |
1da177e4 LT |
715 | /* First pass: look for a config entry that looks normal. */ |
716 | tuple.TupleData = (cisdata_t *)buf; | |
717 | tuple.TupleOffset = 0; | |
718 | tuple.TupleDataMax = 255; | |
719 | tuple.Attributes = 0; | |
720 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
721 | /* Two tries: without IO aliases, then with aliases */ | |
722 | for (try = 0; try < 2; try++) { | |
fba395ee | 723 | i = first_tuple(link, &tuple, &parse); |
1da177e4 LT |
724 | while (i != CS_NO_MORE_ITEMS) { |
725 | if (i != CS_SUCCESS) | |
726 | goto next_entry; | |
727 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
70294b46 | 728 | link->conf.Vpp = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; |
1da177e4 LT |
729 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) { |
730 | link->conf.ConfigIndex = cf->index; | |
731 | link->io.BasePort1 = cf->io.win[0].base; | |
732 | link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK; | |
fba395ee | 733 | i = pcmcia_request_io(link, &link->io); |
1da177e4 LT |
734 | if (i == CS_SUCCESS) |
735 | goto found_port; | |
736 | } | |
737 | next_entry: | |
fba395ee | 738 | i = next_tuple(link, &tuple, &parse); |
1da177e4 LT |
739 | } |
740 | } | |
741 | ||
742 | /* Second pass: try to find an entry that isn't picky about | |
743 | its base address, then try to grab any standard serial port | |
744 | address, and finally try to get any free port. */ | |
fba395ee | 745 | i = first_tuple(link, &tuple, &parse); |
1da177e4 LT |
746 | while (i != CS_NO_MORE_ITEMS) { |
747 | if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { | |
748 | link->conf.ConfigIndex = cf->index; | |
749 | for (j = 0; j < 5; j++) { | |
750 | link->io.BasePort1 = base[j]; | |
751 | link->io.IOAddrLines = base[j] ? 16 : 3; | |
fba395ee | 752 | i = pcmcia_request_io(link, &link->io); |
1da177e4 LT |
753 | if (i == CS_SUCCESS) |
754 | goto found_port; | |
755 | } | |
756 | } | |
fba395ee | 757 | i = next_tuple(link, &tuple, &parse); |
1da177e4 LT |
758 | } |
759 | ||
760 | found_port: | |
761 | if (i != CS_SUCCESS) { | |
762 | BT_ERR("No usable port range found"); | |
fba395ee | 763 | cs_error(link, RequestIO, i); |
1da177e4 LT |
764 | goto failed; |
765 | } | |
766 | ||
fba395ee | 767 | i = pcmcia_request_irq(link, &link->irq); |
1da177e4 | 768 | if (i != CS_SUCCESS) { |
fba395ee | 769 | cs_error(link, RequestIRQ, i); |
1da177e4 LT |
770 | link->irq.AssignedIRQ = 0; |
771 | } | |
772 | ||
fba395ee | 773 | i = pcmcia_request_configuration(link, &link->conf); |
1da177e4 | 774 | if (i != CS_SUCCESS) { |
fba395ee | 775 | cs_error(link, RequestConfiguration, i); |
1da177e4 LT |
776 | goto failed; |
777 | } | |
778 | ||
779 | if (bt3c_open(info) != 0) | |
780 | goto failed; | |
781 | ||
782 | strcpy(info->node.dev_name, info->hdev->name); | |
fd238232 | 783 | link->dev_node = &info->node; |
1da177e4 | 784 | |
15b99ac1 | 785 | return 0; |
1da177e4 | 786 | |
1da177e4 LT |
787 | failed: |
788 | bt3c_release(link); | |
15b99ac1 | 789 | return -ENODEV; |
1da177e4 LT |
790 | } |
791 | ||
792 | ||
fba395ee | 793 | static void bt3c_release(struct pcmcia_device *link) |
1da177e4 LT |
794 | { |
795 | bt3c_info_t *info = link->priv; | |
796 | ||
e2d40963 | 797 | bt3c_close(info); |
1da177e4 | 798 | |
fba395ee | 799 | pcmcia_disable_device(link); |
1da177e4 LT |
800 | } |
801 | ||
1da177e4 | 802 | |
a01c3ed4 DB |
803 | static struct pcmcia_device_id bt3c_ids[] = { |
804 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), | |
805 | PCMCIA_DEVICE_NULL | |
806 | }; | |
807 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); | |
808 | ||
1da177e4 LT |
809 | static struct pcmcia_driver bt3c_driver = { |
810 | .owner = THIS_MODULE, | |
811 | .drv = { | |
812 | .name = "bt3c_cs", | |
813 | }, | |
15b99ac1 | 814 | .probe = bt3c_probe, |
cc3b4866 | 815 | .remove = bt3c_detach, |
a01c3ed4 | 816 | .id_table = bt3c_ids, |
1da177e4 LT |
817 | }; |
818 | ||
819 | static int __init init_bt3c_cs(void) | |
820 | { | |
821 | return pcmcia_register_driver(&bt3c_driver); | |
822 | } | |
823 | ||
824 | ||
825 | static void __exit exit_bt3c_cs(void) | |
826 | { | |
827 | pcmcia_unregister_driver(&bt3c_driver); | |
1da177e4 LT |
828 | } |
829 | ||
830 | module_init(init_bt3c_cs); | |
831 | module_exit(exit_bt3c_cs); |