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 | ||
24 | #include <linux/config.h> | |
25 | #include <linux/module.h> | |
26 | ||
27 | #include <linux/kernel.h> | |
28 | #include <linux/init.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/types.h> | |
31 | #include <linux/sched.h> | |
32 | #include <linux/delay.h> | |
33 | #include <linux/errno.h> | |
34 | #include <linux/ptrace.h> | |
35 | #include <linux/ioport.h> | |
36 | #include <linux/spinlock.h> | |
37 | #include <linux/moduleparam.h> | |
38 | ||
39 | #include <linux/skbuff.h> | |
40 | #include <linux/string.h> | |
41 | #include <linux/serial.h> | |
42 | #include <linux/serial_reg.h> | |
43 | #include <linux/bitops.h> | |
44 | #include <asm/system.h> | |
45 | #include <asm/io.h> | |
46 | ||
47 | #include <linux/device.h> | |
48 | #include <linux/firmware.h> | |
49 | ||
1da177e4 LT |
50 | #include <pcmcia/cs_types.h> |
51 | #include <pcmcia/cs.h> | |
52 | #include <pcmcia/cistpl.h> | |
53 | #include <pcmcia/ciscode.h> | |
54 | #include <pcmcia/ds.h> | |
55 | #include <pcmcia/cisreg.h> | |
56 | ||
57 | #include <net/bluetooth/bluetooth.h> | |
58 | #include <net/bluetooth/hci_core.h> | |
59 | ||
60 | ||
61 | ||
62 | /* ======================== Module parameters ======================== */ | |
63 | ||
64 | ||
65 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>, Jose Orlando Pereira <jop@di.uminho.pt>"); | |
66 | MODULE_DESCRIPTION("Bluetooth driver for the 3Com Bluetooth PCMCIA card"); | |
67 | MODULE_LICENSE("GPL"); | |
68 | ||
69 | ||
70 | ||
71 | /* ======================== Local structures ======================== */ | |
72 | ||
73 | ||
74 | typedef struct bt3c_info_t { | |
75 | dev_link_t link; | |
76 | dev_node_t node; | |
77 | ||
78 | struct hci_dev *hdev; | |
79 | ||
80 | spinlock_t lock; /* For serializing operations */ | |
81 | ||
82 | struct sk_buff_head txq; | |
83 | unsigned long tx_state; | |
84 | ||
85 | unsigned long rx_state; | |
86 | unsigned long rx_count; | |
87 | struct sk_buff *rx_skb; | |
88 | } bt3c_info_t; | |
89 | ||
90 | ||
91 | static void bt3c_config(dev_link_t *link); | |
92 | static void bt3c_release(dev_link_t *link); | |
1da177e4 | 93 | |
cc3b4866 | 94 | static void bt3c_detach(struct pcmcia_device *p_dev); |
1da177e4 | 95 | |
1da177e4 LT |
96 | |
97 | /* Transmit states */ | |
98 | #define XMIT_SENDING 1 | |
99 | #define XMIT_WAKEUP 2 | |
100 | #define XMIT_WAITING 8 | |
101 | ||
102 | /* Receiver states */ | |
103 | #define RECV_WAIT_PACKET_TYPE 0 | |
104 | #define RECV_WAIT_EVENT_HEADER 1 | |
105 | #define RECV_WAIT_ACL_HEADER 2 | |
106 | #define RECV_WAIT_SCO_HEADER 3 | |
107 | #define RECV_WAIT_DATA 4 | |
108 | ||
109 | ||
110 | ||
111 | /* ======================== Special I/O functions ======================== */ | |
112 | ||
113 | ||
114 | #define DATA_L 0 | |
115 | #define DATA_H 1 | |
116 | #define ADDR_L 2 | |
117 | #define ADDR_H 3 | |
118 | #define CONTROL 4 | |
119 | ||
120 | ||
121 | static inline void bt3c_address(unsigned int iobase, unsigned short addr) | |
122 | { | |
123 | outb(addr & 0xff, iobase + ADDR_L); | |
124 | outb((addr >> 8) & 0xff, iobase + ADDR_H); | |
125 | } | |
126 | ||
127 | ||
128 | static inline void bt3c_put(unsigned int iobase, unsigned short value) | |
129 | { | |
130 | outb(value & 0xff, iobase + DATA_L); | |
131 | outb((value >> 8) & 0xff, iobase + DATA_H); | |
132 | } | |
133 | ||
134 | ||
135 | static inline void bt3c_io_write(unsigned int iobase, unsigned short addr, unsigned short value) | |
136 | { | |
137 | bt3c_address(iobase, addr); | |
138 | bt3c_put(iobase, value); | |
139 | } | |
140 | ||
141 | ||
142 | static inline unsigned short bt3c_get(unsigned int iobase) | |
143 | { | |
144 | unsigned short value = inb(iobase + DATA_L); | |
145 | ||
146 | value |= inb(iobase + DATA_H) << 8; | |
147 | ||
148 | return value; | |
149 | } | |
150 | ||
151 | ||
152 | static inline unsigned short bt3c_read(unsigned int iobase, unsigned short addr) | |
153 | { | |
154 | bt3c_address(iobase, addr); | |
155 | ||
156 | return bt3c_get(iobase); | |
157 | } | |
158 | ||
159 | ||
160 | ||
161 | /* ======================== Interrupt handling ======================== */ | |
162 | ||
163 | ||
164 | static int bt3c_write(unsigned int iobase, int fifo_size, __u8 *buf, int len) | |
165 | { | |
166 | int actual = 0; | |
167 | ||
168 | bt3c_address(iobase, 0x7080); | |
169 | ||
170 | /* Fill FIFO with current frame */ | |
171 | while (actual < len) { | |
172 | /* Transmit next byte */ | |
173 | bt3c_put(iobase, buf[actual]); | |
174 | actual++; | |
175 | } | |
176 | ||
177 | bt3c_io_write(iobase, 0x7005, actual); | |
178 | ||
179 | return actual; | |
180 | } | |
181 | ||
182 | ||
183 | static void bt3c_write_wakeup(bt3c_info_t *info) | |
184 | { | |
185 | if (!info) { | |
186 | BT_ERR("Unknown device"); | |
187 | return; | |
188 | } | |
189 | ||
190 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) | |
191 | return; | |
192 | ||
193 | do { | |
194 | register unsigned int iobase = info->link.io.BasePort1; | |
195 | register struct sk_buff *skb; | |
196 | register int len; | |
197 | ||
198 | if (!(info->link.state & DEV_PRESENT)) | |
199 | break; | |
200 | ||
201 | ||
202 | if (!(skb = skb_dequeue(&(info->txq)))) { | |
203 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
204 | break; | |
205 | } | |
206 | ||
207 | /* Send frame */ | |
208 | len = bt3c_write(iobase, 256, skb->data, skb->len); | |
209 | ||
210 | if (len != skb->len) { | |
211 | BT_ERR("Very strange"); | |
212 | } | |
213 | ||
214 | kfree_skb(skb); | |
215 | ||
216 | info->hdev->stat.byte_tx += len; | |
217 | ||
218 | } while (0); | |
219 | } | |
220 | ||
221 | ||
222 | static void bt3c_receive(bt3c_info_t *info) | |
223 | { | |
224 | unsigned int iobase; | |
225 | int size = 0, avail; | |
226 | ||
227 | if (!info) { | |
228 | BT_ERR("Unknown device"); | |
229 | return; | |
230 | } | |
231 | ||
232 | iobase = info->link.io.BasePort1; | |
233 | ||
234 | avail = bt3c_read(iobase, 0x7006); | |
235 | //printk("bt3c_cs: receiving %d bytes\n", avail); | |
236 | ||
237 | bt3c_address(iobase, 0x7480); | |
238 | while (size < avail) { | |
239 | size++; | |
240 | info->hdev->stat.byte_rx++; | |
241 | ||
242 | /* Allocate packet */ | |
243 | if (info->rx_skb == NULL) { | |
244 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
245 | info->rx_count = 0; | |
246 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
247 | BT_ERR("Can't allocate mem for new packet"); | |
248 | return; | |
249 | } | |
250 | } | |
251 | ||
252 | ||
253 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
254 | ||
255 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 256 | bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L); |
1da177e4 | 257 | inb(iobase + DATA_H); |
0d48d939 | 258 | //printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 | 259 | |
0d48d939 | 260 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
261 | |
262 | case HCI_EVENT_PKT: | |
263 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
264 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
265 | break; | |
266 | ||
267 | case HCI_ACLDATA_PKT: | |
268 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
269 | info->rx_count = HCI_ACL_HDR_SIZE; | |
270 | break; | |
271 | ||
272 | case HCI_SCODATA_PKT: | |
273 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
274 | info->rx_count = HCI_SCO_HDR_SIZE; | |
275 | break; | |
276 | ||
277 | default: | |
278 | /* Unknown packet */ | |
0d48d939 | 279 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
280 | info->hdev->stat.err_rx++; |
281 | clear_bit(HCI_RUNNING, &(info->hdev->flags)); | |
282 | ||
283 | kfree_skb(info->rx_skb); | |
284 | info->rx_skb = NULL; | |
285 | break; | |
286 | ||
287 | } | |
288 | ||
289 | } else { | |
290 | ||
291 | __u8 x = inb(iobase + DATA_L); | |
292 | ||
293 | *skb_put(info->rx_skb, 1) = x; | |
294 | inb(iobase + DATA_H); | |
295 | info->rx_count--; | |
296 | ||
297 | if (info->rx_count == 0) { | |
298 | ||
299 | int dlen; | |
300 | struct hci_event_hdr *eh; | |
301 | struct hci_acl_hdr *ah; | |
302 | struct hci_sco_hdr *sh; | |
303 | ||
304 | switch (info->rx_state) { | |
305 | ||
306 | case RECV_WAIT_EVENT_HEADER: | |
307 | eh = (struct hci_event_hdr *)(info->rx_skb->data); | |
308 | info->rx_state = RECV_WAIT_DATA; | |
309 | info->rx_count = eh->plen; | |
310 | break; | |
311 | ||
312 | case RECV_WAIT_ACL_HEADER: | |
313 | ah = (struct hci_acl_hdr *)(info->rx_skb->data); | |
314 | dlen = __le16_to_cpu(ah->dlen); | |
315 | info->rx_state = RECV_WAIT_DATA; | |
316 | info->rx_count = dlen; | |
317 | break; | |
318 | ||
319 | case RECV_WAIT_SCO_HEADER: | |
320 | sh = (struct hci_sco_hdr *)(info->rx_skb->data); | |
321 | info->rx_state = RECV_WAIT_DATA; | |
322 | info->rx_count = sh->dlen; | |
323 | break; | |
324 | ||
325 | case RECV_WAIT_DATA: | |
326 | hci_recv_frame(info->rx_skb); | |
327 | info->rx_skb = NULL; | |
328 | break; | |
329 | ||
330 | } | |
331 | ||
332 | } | |
333 | ||
334 | } | |
335 | ||
336 | } | |
337 | ||
338 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
339 | } | |
340 | ||
341 | ||
342 | static irqreturn_t bt3c_interrupt(int irq, void *dev_inst, struct pt_regs *regs) | |
343 | { | |
344 | bt3c_info_t *info = dev_inst; | |
345 | unsigned int iobase; | |
346 | int iir; | |
347 | ||
348 | if (!info || !info->hdev) { | |
349 | BT_ERR("Call of irq %d for unknown device", irq); | |
350 | return IRQ_NONE; | |
351 | } | |
352 | ||
353 | iobase = info->link.io.BasePort1; | |
354 | ||
355 | spin_lock(&(info->lock)); | |
356 | ||
357 | iir = inb(iobase + CONTROL); | |
358 | if (iir & 0x80) { | |
359 | int stat = bt3c_read(iobase, 0x7001); | |
360 | ||
361 | if ((stat & 0xff) == 0x7f) { | |
362 | BT_ERR("Very strange (stat=0x%04x)", stat); | |
363 | } else if ((stat & 0xff) != 0xff) { | |
364 | if (stat & 0x0020) { | |
365 | int stat = bt3c_read(iobase, 0x7002) & 0x10; | |
366 | BT_INFO("%s: Antenna %s", info->hdev->name, | |
367 | stat ? "out" : "in"); | |
368 | } | |
369 | if (stat & 0x0001) | |
370 | bt3c_receive(info); | |
371 | if (stat & 0x0002) { | |
372 | //BT_ERR("Ack (stat=0x%04x)", stat); | |
373 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
374 | bt3c_write_wakeup(info); | |
375 | } | |
376 | ||
377 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
378 | ||
379 | outb(iir, iobase + CONTROL); | |
380 | } | |
381 | } | |
382 | ||
383 | spin_unlock(&(info->lock)); | |
384 | ||
385 | return IRQ_HANDLED; | |
386 | } | |
387 | ||
388 | ||
389 | ||
390 | /* ======================== HCI interface ======================== */ | |
391 | ||
392 | ||
393 | static int bt3c_hci_flush(struct hci_dev *hdev) | |
394 | { | |
395 | bt3c_info_t *info = (bt3c_info_t *)(hdev->driver_data); | |
396 | ||
397 | /* Drop TX queue */ | |
398 | skb_queue_purge(&(info->txq)); | |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
403 | ||
404 | static int bt3c_hci_open(struct hci_dev *hdev) | |
405 | { | |
406 | set_bit(HCI_RUNNING, &(hdev->flags)); | |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
411 | ||
412 | static int bt3c_hci_close(struct hci_dev *hdev) | |
413 | { | |
414 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
415 | return 0; | |
416 | ||
417 | bt3c_hci_flush(hdev); | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
422 | ||
423 | static int bt3c_hci_send_frame(struct sk_buff *skb) | |
424 | { | |
425 | bt3c_info_t *info; | |
426 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
427 | unsigned long flags; | |
428 | ||
429 | if (!hdev) { | |
430 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
431 | return -ENODEV; | |
432 | } | |
433 | ||
434 | info = (bt3c_info_t *) (hdev->driver_data); | |
435 | ||
0d48d939 | 436 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
437 | case HCI_COMMAND_PKT: |
438 | hdev->stat.cmd_tx++; | |
439 | break; | |
440 | case HCI_ACLDATA_PKT: | |
441 | hdev->stat.acl_tx++; | |
442 | break; | |
443 | case HCI_SCODATA_PKT: | |
444 | hdev->stat.sco_tx++; | |
445 | break; | |
446 | }; | |
447 | ||
448 | /* Prepend skb with frame type */ | |
0d48d939 | 449 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
450 | skb_queue_tail(&(info->txq), skb); |
451 | ||
452 | spin_lock_irqsave(&(info->lock), flags); | |
453 | ||
454 | bt3c_write_wakeup(info); | |
455 | ||
456 | spin_unlock_irqrestore(&(info->lock), flags); | |
457 | ||
458 | return 0; | |
459 | } | |
460 | ||
461 | ||
462 | static void bt3c_hci_destruct(struct hci_dev *hdev) | |
463 | { | |
464 | } | |
465 | ||
466 | ||
467 | static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
468 | { | |
469 | return -ENOIOCTLCMD; | |
470 | } | |
471 | ||
472 | ||
473 | ||
474 | /* ======================== Card services HCI interaction ======================== */ | |
475 | ||
476 | ||
477 | static struct device *bt3c_device(void) | |
478 | { | |
479 | static struct device dev = { | |
480 | .bus_id = "pcmcia", | |
481 | }; | |
482 | kobject_set_name(&dev.kobj, "bt3c"); | |
483 | kobject_init(&dev.kobj); | |
484 | ||
485 | return &dev; | |
486 | } | |
487 | ||
488 | ||
489 | static int bt3c_load_firmware(bt3c_info_t *info, unsigned char *firmware, int count) | |
490 | { | |
491 | char *ptr = (char *) firmware; | |
492 | char b[9]; | |
493 | unsigned int iobase, size, addr, fcs, tmp; | |
494 | int i, err = 0; | |
495 | ||
496 | iobase = info->link.io.BasePort1; | |
497 | ||
498 | /* Reset */ | |
499 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
500 | bt3c_io_write(iobase, 0x8040, 0x0400); | |
501 | ||
502 | udelay(1); | |
503 | ||
504 | bt3c_io_write(iobase, 0x8040, 0x0404); | |
505 | ||
506 | udelay(17); | |
507 | ||
508 | /* Load */ | |
509 | while (count) { | |
510 | if (ptr[0] != 'S') { | |
511 | BT_ERR("Bad address in firmware"); | |
512 | err = -EFAULT; | |
513 | goto error; | |
514 | } | |
515 | ||
516 | memset(b, 0, sizeof(b)); | |
517 | memcpy(b, ptr + 2, 2); | |
518 | size = simple_strtol(b, NULL, 16); | |
519 | ||
520 | memset(b, 0, sizeof(b)); | |
521 | memcpy(b, ptr + 4, 8); | |
522 | addr = simple_strtol(b, NULL, 16); | |
523 | ||
524 | memset(b, 0, sizeof(b)); | |
525 | memcpy(b, ptr + (size * 2) + 2, 2); | |
526 | fcs = simple_strtol(b, NULL, 16); | |
527 | ||
528 | memset(b, 0, sizeof(b)); | |
529 | for (tmp = 0, i = 0; i < size; i++) { | |
530 | memcpy(b, ptr + (i * 2) + 2, 2); | |
531 | tmp += simple_strtol(b, NULL, 16); | |
532 | } | |
533 | ||
534 | if (((tmp + fcs) & 0xff) != 0xff) { | |
535 | BT_ERR("Checksum error in firmware"); | |
536 | err = -EILSEQ; | |
537 | goto error; | |
538 | } | |
539 | ||
540 | if (ptr[1] == '3') { | |
541 | bt3c_address(iobase, addr); | |
542 | ||
543 | memset(b, 0, sizeof(b)); | |
544 | for (i = 0; i < (size - 4) / 2; i++) { | |
545 | memcpy(b, ptr + (i * 4) + 12, 4); | |
546 | tmp = simple_strtol(b, NULL, 16); | |
547 | bt3c_put(iobase, tmp); | |
548 | } | |
549 | } | |
550 | ||
551 | ptr += (size * 2) + 6; | |
552 | count -= (size * 2) + 6; | |
553 | } | |
554 | ||
555 | udelay(17); | |
556 | ||
557 | /* Boot */ | |
558 | bt3c_address(iobase, 0x3000); | |
559 | outb(inb(iobase + CONTROL) | 0x40, iobase + CONTROL); | |
560 | ||
561 | error: | |
562 | udelay(17); | |
563 | ||
564 | /* Clear */ | |
565 | bt3c_io_write(iobase, 0x7006, 0x0000); | |
566 | bt3c_io_write(iobase, 0x7005, 0x0000); | |
567 | bt3c_io_write(iobase, 0x7001, 0x0000); | |
568 | ||
569 | return err; | |
570 | } | |
571 | ||
572 | ||
573 | static int bt3c_open(bt3c_info_t *info) | |
574 | { | |
575 | const struct firmware *firmware; | |
576 | struct hci_dev *hdev; | |
577 | int err; | |
578 | ||
579 | spin_lock_init(&(info->lock)); | |
580 | ||
581 | skb_queue_head_init(&(info->txq)); | |
582 | ||
583 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
584 | info->rx_count = 0; | |
585 | info->rx_skb = NULL; | |
586 | ||
587 | /* Initialize HCI device */ | |
588 | hdev = hci_alloc_dev(); | |
589 | if (!hdev) { | |
590 | BT_ERR("Can't allocate HCI device"); | |
591 | return -ENOMEM; | |
592 | } | |
593 | ||
594 | info->hdev = hdev; | |
595 | ||
596 | hdev->type = HCI_PCCARD; | |
597 | hdev->driver_data = info; | |
598 | ||
599 | hdev->open = bt3c_hci_open; | |
600 | hdev->close = bt3c_hci_close; | |
601 | hdev->flush = bt3c_hci_flush; | |
602 | hdev->send = bt3c_hci_send_frame; | |
603 | hdev->destruct = bt3c_hci_destruct; | |
604 | hdev->ioctl = bt3c_hci_ioctl; | |
605 | ||
606 | hdev->owner = THIS_MODULE; | |
607 | ||
608 | /* Load firmware */ | |
609 | err = request_firmware(&firmware, "BT3CPCC.bin", bt3c_device()); | |
610 | if (err < 0) { | |
611 | BT_ERR("Firmware request failed"); | |
612 | goto error; | |
613 | } | |
614 | ||
615 | err = bt3c_load_firmware(info, firmware->data, firmware->size); | |
616 | ||
617 | release_firmware(firmware); | |
618 | ||
619 | if (err < 0) { | |
620 | BT_ERR("Firmware loading failed"); | |
621 | goto error; | |
622 | } | |
623 | ||
624 | /* Timeout before it is safe to send the first HCI packet */ | |
625 | msleep(1000); | |
626 | ||
627 | /* Register HCI device */ | |
628 | err = hci_register_dev(hdev); | |
629 | if (err < 0) { | |
630 | BT_ERR("Can't register HCI device"); | |
631 | goto error; | |
632 | } | |
633 | ||
634 | return 0; | |
635 | ||
636 | error: | |
637 | info->hdev = NULL; | |
638 | hci_free_dev(hdev); | |
639 | return err; | |
640 | } | |
641 | ||
642 | ||
643 | static int bt3c_close(bt3c_info_t *info) | |
644 | { | |
645 | struct hci_dev *hdev = info->hdev; | |
646 | ||
647 | if (!hdev) | |
648 | return -ENODEV; | |
649 | ||
650 | bt3c_hci_close(hdev); | |
651 | ||
652 | if (hci_unregister_dev(hdev) < 0) | |
653 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
654 | ||
655 | hci_free_dev(hdev); | |
656 | ||
657 | return 0; | |
658 | } | |
659 | ||
f8cfa618 | 660 | static int bt3c_attach(struct pcmcia_device *p_dev) |
1da177e4 LT |
661 | { |
662 | bt3c_info_t *info; | |
1da177e4 | 663 | dev_link_t *link; |
1da177e4 LT |
664 | |
665 | /* Create new info device */ | |
089b1dbb | 666 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 | 667 | if (!info) |
f8cfa618 | 668 | return -ENOMEM; |
1da177e4 LT |
669 | |
670 | link = &info->link; | |
671 | link->priv = info; | |
672 | ||
673 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
674 | link->io.NumPorts1 = 8; | |
675 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
676 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
677 | ||
678 | link->irq.Handler = bt3c_interrupt; | |
679 | link->irq.Instance = info; | |
680 | ||
681 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
682 | link->conf.Vcc = 50; | |
683 | link->conf.IntType = INT_MEMORY_AND_IO; | |
684 | ||
f8cfa618 DB |
685 | link->handle = p_dev; |
686 | p_dev->instance = link; | |
1da177e4 | 687 | |
f8cfa618 DB |
688 | link->state |= DEV_PRESENT | DEV_CONFIG_PENDING; |
689 | bt3c_config(link); | |
690 | ||
691 | return 0; | |
1da177e4 LT |
692 | } |
693 | ||
694 | ||
cc3b4866 | 695 | static void bt3c_detach(struct pcmcia_device *p_dev) |
1da177e4 | 696 | { |
cc3b4866 | 697 | dev_link_t *link = dev_to_instance(p_dev); |
1da177e4 | 698 | bt3c_info_t *info = link->priv; |
1da177e4 LT |
699 | |
700 | if (link->state & DEV_CONFIG) | |
701 | bt3c_release(link); | |
702 | ||
1da177e4 LT |
703 | kfree(info); |
704 | } | |
705 | ||
706 | static int get_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) | |
707 | { | |
708 | int i; | |
709 | ||
710 | i = pcmcia_get_tuple_data(handle, tuple); | |
711 | if (i != CS_SUCCESS) | |
712 | return i; | |
713 | ||
714 | return pcmcia_parse_tuple(handle, tuple, parse); | |
715 | } | |
716 | ||
717 | static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) | |
718 | { | |
719 | if (pcmcia_get_first_tuple(handle, tuple) != CS_SUCCESS) | |
720 | return CS_NO_MORE_ITEMS; | |
721 | return get_tuple(handle, tuple, parse); | |
722 | } | |
723 | ||
724 | static int next_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse) | |
725 | { | |
726 | if (pcmcia_get_next_tuple(handle, tuple) != CS_SUCCESS) | |
727 | return CS_NO_MORE_ITEMS; | |
728 | return get_tuple(handle, tuple, parse); | |
729 | } | |
730 | ||
731 | static void bt3c_config(dev_link_t *link) | |
732 | { | |
733 | static kio_addr_t base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 }; | |
734 | client_handle_t handle = link->handle; | |
735 | bt3c_info_t *info = link->priv; | |
736 | tuple_t tuple; | |
737 | u_short buf[256]; | |
738 | cisparse_t parse; | |
739 | cistpl_cftable_entry_t *cf = &parse.cftable_entry; | |
740 | config_info_t config; | |
741 | int i, j, try, last_ret, last_fn; | |
742 | ||
743 | tuple.TupleData = (cisdata_t *)buf; | |
744 | tuple.TupleOffset = 0; | |
745 | tuple.TupleDataMax = 255; | |
746 | tuple.Attributes = 0; | |
747 | ||
748 | /* Get configuration register information */ | |
749 | tuple.DesiredTuple = CISTPL_CONFIG; | |
750 | last_ret = first_tuple(handle, &tuple, &parse); | |
751 | if (last_ret != CS_SUCCESS) { | |
752 | last_fn = ParseTuple; | |
753 | goto cs_failed; | |
754 | } | |
755 | link->conf.ConfigBase = parse.config.base; | |
756 | link->conf.Present = parse.config.rmask[0]; | |
757 | ||
758 | /* Configure card */ | |
759 | link->state |= DEV_CONFIG; | |
760 | i = pcmcia_get_configuration_info(handle, &config); | |
761 | link->conf.Vcc = config.Vcc; | |
762 | ||
763 | /* First pass: look for a config entry that looks normal. */ | |
764 | tuple.TupleData = (cisdata_t *)buf; | |
765 | tuple.TupleOffset = 0; | |
766 | tuple.TupleDataMax = 255; | |
767 | tuple.Attributes = 0; | |
768 | tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY; | |
769 | /* Two tries: without IO aliases, then with aliases */ | |
770 | for (try = 0; try < 2; try++) { | |
771 | i = first_tuple(handle, &tuple, &parse); | |
772 | while (i != CS_NO_MORE_ITEMS) { | |
773 | if (i != CS_SUCCESS) | |
774 | goto next_entry; | |
775 | if (cf->vpp1.present & (1 << CISTPL_POWER_VNOM)) | |
776 | link->conf.Vpp1 = link->conf.Vpp2 = cf->vpp1.param[CISTPL_POWER_VNOM] / 10000; | |
777 | if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) && (cf->io.win[0].base != 0)) { | |
778 | link->conf.ConfigIndex = cf->index; | |
779 | link->io.BasePort1 = cf->io.win[0].base; | |
780 | link->io.IOAddrLines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK; | |
781 | i = pcmcia_request_io(link->handle, &link->io); | |
782 | if (i == CS_SUCCESS) | |
783 | goto found_port; | |
784 | } | |
785 | next_entry: | |
786 | i = next_tuple(handle, &tuple, &parse); | |
787 | } | |
788 | } | |
789 | ||
790 | /* Second pass: try to find an entry that isn't picky about | |
791 | its base address, then try to grab any standard serial port | |
792 | address, and finally try to get any free port. */ | |
793 | i = first_tuple(handle, &tuple, &parse); | |
794 | while (i != CS_NO_MORE_ITEMS) { | |
795 | if ((i == CS_SUCCESS) && (cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) { | |
796 | link->conf.ConfigIndex = cf->index; | |
797 | for (j = 0; j < 5; j++) { | |
798 | link->io.BasePort1 = base[j]; | |
799 | link->io.IOAddrLines = base[j] ? 16 : 3; | |
800 | i = pcmcia_request_io(link->handle, &link->io); | |
801 | if (i == CS_SUCCESS) | |
802 | goto found_port; | |
803 | } | |
804 | } | |
805 | i = next_tuple(handle, &tuple, &parse); | |
806 | } | |
807 | ||
808 | found_port: | |
809 | if (i != CS_SUCCESS) { | |
810 | BT_ERR("No usable port range found"); | |
811 | cs_error(link->handle, RequestIO, i); | |
812 | goto failed; | |
813 | } | |
814 | ||
815 | i = pcmcia_request_irq(link->handle, &link->irq); | |
816 | if (i != CS_SUCCESS) { | |
817 | cs_error(link->handle, RequestIRQ, i); | |
818 | link->irq.AssignedIRQ = 0; | |
819 | } | |
820 | ||
821 | i = pcmcia_request_configuration(link->handle, &link->conf); | |
822 | if (i != CS_SUCCESS) { | |
823 | cs_error(link->handle, RequestConfiguration, i); | |
824 | goto failed; | |
825 | } | |
826 | ||
827 | if (bt3c_open(info) != 0) | |
828 | goto failed; | |
829 | ||
830 | strcpy(info->node.dev_name, info->hdev->name); | |
831 | link->dev = &info->node; | |
832 | link->state &= ~DEV_CONFIG_PENDING; | |
833 | ||
834 | return; | |
835 | ||
836 | cs_failed: | |
837 | cs_error(link->handle, last_fn, last_ret); | |
838 | ||
839 | failed: | |
840 | bt3c_release(link); | |
841 | } | |
842 | ||
843 | ||
844 | static void bt3c_release(dev_link_t *link) | |
845 | { | |
846 | bt3c_info_t *info = link->priv; | |
847 | ||
848 | if (link->state & DEV_PRESENT) | |
849 | bt3c_close(info); | |
850 | ||
851 | link->dev = NULL; | |
852 | ||
853 | pcmcia_release_configuration(link->handle); | |
854 | pcmcia_release_io(link->handle, &link->io); | |
855 | pcmcia_release_irq(link->handle, &link->irq); | |
856 | ||
857 | link->state &= ~DEV_CONFIG; | |
858 | } | |
859 | ||
98e4c28b DB |
860 | static int bt3c_suspend(struct pcmcia_device *dev) |
861 | { | |
862 | dev_link_t *link = dev_to_instance(dev); | |
863 | ||
864 | link->state |= DEV_SUSPEND; | |
865 | if (link->state & DEV_CONFIG) | |
866 | pcmcia_release_configuration(link->handle); | |
867 | ||
868 | return 0; | |
869 | } | |
870 | ||
871 | static int bt3c_resume(struct pcmcia_device *dev) | |
872 | { | |
873 | dev_link_t *link = dev_to_instance(dev); | |
874 | ||
875 | link->state &= ~DEV_SUSPEND; | |
876 | if (DEV_OK(link)) | |
877 | pcmcia_request_configuration(link->handle, &link->conf); | |
878 | ||
879 | return 0; | |
880 | } | |
1da177e4 | 881 | |
1da177e4 | 882 | |
a01c3ed4 DB |
883 | static struct pcmcia_device_id bt3c_ids[] = { |
884 | PCMCIA_DEVICE_PROD_ID13("3COM", "Bluetooth PC Card", 0xefce0a31, 0xd4ce9b02), | |
885 | PCMCIA_DEVICE_NULL | |
886 | }; | |
887 | MODULE_DEVICE_TABLE(pcmcia, bt3c_ids); | |
888 | ||
1da177e4 LT |
889 | static struct pcmcia_driver bt3c_driver = { |
890 | .owner = THIS_MODULE, | |
891 | .drv = { | |
892 | .name = "bt3c_cs", | |
893 | }, | |
f8cfa618 | 894 | .probe = bt3c_attach, |
cc3b4866 | 895 | .remove = bt3c_detach, |
a01c3ed4 | 896 | .id_table = bt3c_ids, |
98e4c28b DB |
897 | .suspend = bt3c_suspend, |
898 | .resume = bt3c_resume, | |
1da177e4 LT |
899 | }; |
900 | ||
901 | static int __init init_bt3c_cs(void) | |
902 | { | |
903 | return pcmcia_register_driver(&bt3c_driver); | |
904 | } | |
905 | ||
906 | ||
907 | static void __exit exit_bt3c_cs(void) | |
908 | { | |
909 | pcmcia_unregister_driver(&bt3c_driver); | |
1da177e4 LT |
910 | } |
911 | ||
912 | module_init(init_bt3c_cs); | |
913 | module_exit(exit_bt3c_cs); |