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x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y
[people/arne_f/kernel.git] / drivers / bluetooth / bluecard_cs.c
CommitLineData
1da177e4
LT		 1/*
2 *
3 * Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)
4 *
5 * Copyright (C) 2001-2002 Marcel Holtmann <marcel@holtmann.org>
6 *
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation;
11 *
12 * Software distributed under the License is distributed on an "AS
13 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14 * implied. See the License for the specific language governing
15 * rights and limitations under the License.
16 *
17 * The initial developer of the original code is David A. Hinds
18 * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
19 * are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
20 *
21 */
22
1da177e4
LT		 23#include <linux/module.h>
24
25#include <linux/kernel.h>
26#include <linux/init.h>
27#include <linux/slab.h>
28#include <linux/types.h>
29#include <linux/sched.h>
30#include <linux/delay.h>
31#include <linux/timer.h>
32#include <linux/errno.h>
33#include <linux/ptrace.h>
34#include <linux/ioport.h>
35#include <linux/spinlock.h>
36#include <linux/moduleparam.h>
37#include <linux/wait.h>
38
39#include <linux/skbuff.h>
c89827e0 40#include <linux/io.h>
1da177e4 41
1da177e4
LT		 42#include <pcmcia/cistpl.h>
43#include <pcmcia/ciscode.h>
44#include <pcmcia/ds.h>
45#include <pcmcia/cisreg.h>
46
47#include <net/bluetooth/bluetooth.h>
48#include <net/bluetooth/hci_core.h>
49
50
51
52/* ======================== Module parameters ======================== */
53
54
55MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
56MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)");
57MODULE_LICENSE("GPL");
58
59
60
61/* ======================== Local structures ======================== */
62
63
d664cd98 64struct bluecard_info {
fd238232 65 struct pcmcia_device *p_dev;
1da177e4
LT		 66
67 struct hci_dev *hdev;
68
69 spinlock_t lock; /* For serializing operations */
70 struct timer_list timer; /* For LED control */
71
72 struct sk_buff_head txq;
73 unsigned long tx_state;
74
75 unsigned long rx_state;
76 unsigned long rx_count;
77 struct sk_buff *rx_skb;
78
79 unsigned char ctrl_reg;
80 unsigned long hw_state; /* Status of the hardware and LED control */
d664cd98 81};
1da177e4
LT		 82
83
15b99ac1 84static int bluecard_config(struct pcmcia_device *link);
fba395ee 85static void bluecard_release(struct pcmcia_device *link);
1da177e4 86
cc3b4866 87static void bluecard_detach(struct pcmcia_device *p_dev);
1da177e4 88
1da177e4
LT		 89
90/* Default baud rate: 57600, 115200, 230400 or 460800 */
91#define DEFAULT_BAUD_RATE 230400
92
93
94/* Hardware states */
95#define CARD_READY 1
c7ab7330 96#define CARD_ACTIVITY 2
1da177e4
LT		 97#define CARD_HAS_PCCARD_ID 4
98#define CARD_HAS_POWER_LED 5
99#define CARD_HAS_ACTIVITY_LED 6
100
101/* Transmit states */
102#define XMIT_SENDING 1
103#define XMIT_WAKEUP 2
104#define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */
105#define XMIT_BUF_ONE_READY 6
106#define XMIT_BUF_TWO_READY 7
107#define XMIT_SENDING_READY 8
108
109/* Receiver states */
110#define RECV_WAIT_PACKET_TYPE 0
111#define RECV_WAIT_EVENT_HEADER 1
112#define RECV_WAIT_ACL_HEADER 2
113#define RECV_WAIT_SCO_HEADER 3
114#define RECV_WAIT_DATA 4
115
116/* Special packet types */
117#define PKT_BAUD_RATE_57600 0x80
118#define PKT_BAUD_RATE_115200 0x81
119#define PKT_BAUD_RATE_230400 0x82
120#define PKT_BAUD_RATE_460800 0x83
121
122
123/* These are the register offsets */
124#define REG_COMMAND 0x20
125#define REG_INTERRUPT 0x21
126#define REG_CONTROL 0x22
127#define REG_RX_CONTROL 0x24
128#define REG_CARD_RESET 0x30
129#define REG_LED_CTRL 0x30
130
131/* REG_COMMAND */
132#define REG_COMMAND_TX_BUF_ONE 0x01
133#define REG_COMMAND_TX_BUF_TWO 0x02
134#define REG_COMMAND_RX_BUF_ONE 0x04
135#define REG_COMMAND_RX_BUF_TWO 0x08
136#define REG_COMMAND_RX_WIN_ONE 0x00
137#define REG_COMMAND_RX_WIN_TWO 0x10
138
139/* REG_CONTROL */
140#define REG_CONTROL_BAUD_RATE_57600 0x00
141#define REG_CONTROL_BAUD_RATE_115200 0x01
142#define REG_CONTROL_BAUD_RATE_230400 0x02
143#define REG_CONTROL_BAUD_RATE_460800 0x03
144#define REG_CONTROL_RTS 0x04
145#define REG_CONTROL_BT_ON 0x08
146#define REG_CONTROL_BT_RESET 0x10
147#define REG_CONTROL_BT_RES_PU 0x20
148#define REG_CONTROL_INTERRUPT 0x40
149#define REG_CONTROL_CARD_RESET 0x80
150
151/* REG_RX_CONTROL */
152#define RTS_LEVEL_SHIFT_BITS 0x02
153
154
155
156/* ======================== LED handling routines ======================== */
157
158
159static void bluecard_activity_led_timeout(u_long arg)
160{
d664cd98 161 struct bluecard_info *info = (struct bluecard_info *)arg;
9a017a91 162 unsigned int iobase = info->p_dev->resource[0]->start;
1da177e4 163
c7ab7330
OZ		 164 if (test_bit(CARD_ACTIVITY, &(info->hw_state))) {
165 /* leave LED in inactive state for HZ/10 for blink effect */
166 clear_bit(CARD_ACTIVITY, &(info->hw_state));
167 mod_timer(&(info->timer), jiffies + HZ / 10);
1da177e4 168 }
c7ab7330
OZ		 169
170 /* Disable activity LED, enable power LED */
171 outb(0x08 | 0x20, iobase + 0x30);
1da177e4
LT		 172}
173
174
d664cd98 175static void bluecard_enable_activity_led(struct bluecard_info *info)
1da177e4 176{
9a017a91 177 unsigned int iobase = info->p_dev->resource[0]->start;
1da177e4 178
c7ab7330
OZ		 179 /* don't disturb running blink timer */
180 if (timer_pending(&(info->timer)))
181 return;
182
183 set_bit(CARD_ACTIVITY, &(info->hw_state));
184
1da177e4 185 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
859d2351
OZ		 186 /* Enable activity LED, keep power LED enabled */
187 outb(0x18 | 0x60, iobase + 0x30);
1da177e4 188 } else {
c7ab7330
OZ		 189 /* Disable power LED */
190 outb(0x00, iobase + 0x30);
1da177e4 191 }
c7ab7330
OZ		 192
193 /* Stop the LED after HZ/10 */
194 mod_timer(&(info->timer), jiffies + HZ / 10);
1da177e4
LT		 195}
196
197
198
199/* ======================== Interrupt handling ======================== */
200
201
202static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len)
203{
204 int i, actual;
205
206 actual = (len > 15) ? 15 : len;
207
208 outb_p(actual, iobase + offset);
209
210 for (i = 0; i < actual; i++)
211 outb_p(buf[i], iobase + offset + i + 1);
212
213 return actual;
214}
215
216
d664cd98 217static void bluecard_write_wakeup(struct bluecard_info *info)
1da177e4
LT		 218{
219 if (!info) {
220 BT_ERR("Unknown device");
221 return;
222 }
223
224 if (!test_bit(XMIT_SENDING_READY, &(info->tx_state)))
225 return;
226
227 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
228 set_bit(XMIT_WAKEUP, &(info->tx_state));
229 return;
230 }
231
232 do {
fc5fef61
GP		 233 unsigned int iobase = info->p_dev->resource[0]->start;
234 unsigned int offset;
235 unsigned char command;
236 unsigned long ready_bit;
1da177e4 237 register struct sk_buff *skb;
fc5fef61 238 int len;
1da177e4
LT		 239
240 clear_bit(XMIT_WAKEUP, &(info->tx_state));
241
e2d40963 242 if (!pcmcia_dev_present(info->p_dev))
1da177e4
LT		 243 return;
244
245 if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) {
246 if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state)))
247 break;
248 offset = 0x10;
249 command = REG_COMMAND_TX_BUF_TWO;
250 ready_bit = XMIT_BUF_TWO_READY;
251 } else {
252 if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state)))
253 break;
254 offset = 0x00;
255 command = REG_COMMAND_TX_BUF_ONE;
256 ready_bit = XMIT_BUF_ONE_READY;
257 }
258
a08b15e6
VI		 259 skb = skb_dequeue(&(info->txq));
260 if (!skb)
1da177e4
LT		 261 break;
262
618e8bc2 263 if (hci_skb_pkt_type(skb) & 0x80) {
1da177e4
LT		 264 /* Disable RTS */
265 info->ctrl_reg |= REG_CONTROL_RTS;
266 outb(info->ctrl_reg, iobase + REG_CONTROL);
267 }
268
269 /* Activate LED */
270 bluecard_enable_activity_led(info);
271
272 /* Send frame */
273 len = bluecard_write(iobase, offset, skb->data, skb->len);
274
275 /* Tell the FPGA to send the data */
276 outb_p(command, iobase + REG_COMMAND);
277
278 /* Mark the buffer as dirty */
279 clear_bit(ready_bit, &(info->tx_state));
280
618e8bc2 281 if (hci_skb_pkt_type(skb) & 0x80) {
7259f0d0 282 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
1da177e4
LT		 283 DEFINE_WAIT(wait);
284
285 unsigned char baud_reg;
286
618e8bc2 287 switch (hci_skb_pkt_type(skb)) {
1da177e4
LT		 288 case PKT_BAUD_RATE_460800:
289 baud_reg = REG_CONTROL_BAUD_RATE_460800;
290 break;
291 case PKT_BAUD_RATE_230400:
292 baud_reg = REG_CONTROL_BAUD_RATE_230400;
293 break;
294 case PKT_BAUD_RATE_115200:
295 baud_reg = REG_CONTROL_BAUD_RATE_115200;
296 break;
297 case PKT_BAUD_RATE_57600:
298 /* Fall through... */
299 default:
300 baud_reg = REG_CONTROL_BAUD_RATE_57600;
301 break;
302 }
303
304 /* Wait until the command reaches the baseband */
305 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
306 schedule_timeout(HZ/10);
307 finish_wait(&wq, &wait);
308
309 /* Set baud on baseband */
310 info->ctrl_reg &= ~0x03;
311 info->ctrl_reg |= baud_reg;
312 outb(info->ctrl_reg, iobase + REG_CONTROL);
313
314 /* Enable RTS */
315 info->ctrl_reg &= ~REG_CONTROL_RTS;
316 outb(info->ctrl_reg, iobase + REG_CONTROL);
317
318 /* Wait before the next HCI packet can be send */
319 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
320 schedule_timeout(HZ);
321 finish_wait(&wq, &wait);
322 }
323
324 if (len == skb->len) {
325 kfree_skb(skb);
326 } else {
327 skb_pull(skb, len);
328 skb_queue_head(&(info->txq), skb);
329 }
330
331 info->hdev->stat.byte_tx += len;
332
333 /* Change buffer */
334 change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state));
335
336 } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
337
338 clear_bit(XMIT_SENDING, &(info->tx_state));
339}
340
341
342static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size)
343{
344 int i, n, len;
345
346 outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND);
347
348 len = inb(iobase + offset);
349 n = 0;
350 i = 1;
351
352 while (n < len) {
353
354 if (i == 16) {
355 outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND);
356 i = 0;
357 }
358
359 buf[n] = inb(iobase + offset + i);
360
361 n++;
362 i++;
363
364 }
365
366 return len;
367}
368
369
d664cd98
HS		 370static void bluecard_receive(struct bluecard_info *info,
371 unsigned int offset)
1da177e4
LT		 372{
373 unsigned int iobase;
374 unsigned char buf[31];
375 int i, len;
376
377 if (!info) {
378 BT_ERR("Unknown device");
379 return;
380 }
381
9a017a91 382 iobase = info->p_dev->resource[0]->start;
1da177e4
LT		 383
384 if (test_bit(XMIT_SENDING_READY, &(info->tx_state)))
385 bluecard_enable_activity_led(info);
386
387 len = bluecard_read(iobase, offset, buf, sizeof(buf));
388
389 for (i = 0; i < len; i++) {
390
391 /* Allocate packet */
54b5b34e 392 if (!info->rx_skb) {
1da177e4
LT		 393 info->rx_state = RECV_WAIT_PACKET_TYPE;
394 info->rx_count = 0;
a08b15e6
VI		 395 info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
396 if (!info->rx_skb) {
1da177e4
LT		 397 BT_ERR("Can't allocate mem for new packet");
398 return;
399 }
400 }
401
402 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
403
618e8bc2 404 hci_skb_pkt_type(info->rx_skb) = buf[i];
1da177e4 405
618e8bc2 406 switch (hci_skb_pkt_type(info->rx_skb)) {
1da177e4
LT		 407
408 case 0x00:
409 /* init packet */
410 if (offset != 0x00) {
411 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
412 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
413 set_bit(XMIT_SENDING_READY, &(info->tx_state));
414 bluecard_write_wakeup(info);
415 }
416
417 kfree_skb(info->rx_skb);
418 info->rx_skb = NULL;
419 break;
420
421 case HCI_EVENT_PKT:
422 info->rx_state = RECV_WAIT_EVENT_HEADER;
423 info->rx_count = HCI_EVENT_HDR_SIZE;
424 break;
425
426 case HCI_ACLDATA_PKT:
427 info->rx_state = RECV_WAIT_ACL_HEADER;
428 info->rx_count = HCI_ACL_HDR_SIZE;
429 break;
430
431 case HCI_SCODATA_PKT:
432 info->rx_state = RECV_WAIT_SCO_HEADER;
433 info->rx_count = HCI_SCO_HDR_SIZE;
434 break;
435
436 default:
437 /* unknown packet */
618e8bc2
MH		 438 BT_ERR("Unknown HCI packet with type 0x%02x received",
439 hci_skb_pkt_type(info->rx_skb));
1da177e4
LT		 440 info->hdev->stat.err_rx++;
441
442 kfree_skb(info->rx_skb);
443 info->rx_skb = NULL;
444 break;
445
446 }
447
448 } else {
449
634fef61 450 skb_put_u8(info->rx_skb, buf[i]);
1da177e4
LT		 451 info->rx_count--;
452
453 if (info->rx_count == 0) {
454
455 int dlen;
456 struct hci_event_hdr *eh;
457 struct hci_acl_hdr *ah;
458 struct hci_sco_hdr *sh;
459
460 switch (info->rx_state) {
461
462 case RECV_WAIT_EVENT_HEADER:
2a123b86 463 eh = hci_event_hdr(info->rx_skb);
1da177e4
LT		 464 info->rx_state = RECV_WAIT_DATA;
465 info->rx_count = eh->plen;
466 break;
467
468 case RECV_WAIT_ACL_HEADER:
2a123b86 469 ah = hci_acl_hdr(info->rx_skb);
1da177e4
LT		 470 dlen = __le16_to_cpu(ah->dlen);
471 info->rx_state = RECV_WAIT_DATA;
472 info->rx_count = dlen;
473 break;
474
475 case RECV_WAIT_SCO_HEADER:
2a123b86 476 sh = hci_sco_hdr(info->rx_skb);
1da177e4
LT		 477 info->rx_state = RECV_WAIT_DATA;
478 info->rx_count = sh->dlen;
479 break;
480
481 case RECV_WAIT_DATA:
e1a26170 482 hci_recv_frame(info->hdev, info->rx_skb);
1da177e4
LT		 483 info->rx_skb = NULL;
484 break;
485
486 }
487
488 }
489
490 }
491
492
493 }
494
495 info->hdev->stat.byte_rx += len;
496}
497
498
7d12e780 499static irqreturn_t bluecard_interrupt(int irq, void *dev_inst)
1da177e4 500{
d664cd98 501 struct bluecard_info *info = dev_inst;
1da177e4
LT		 502 unsigned int iobase;
503 unsigned char reg;
504
7427847d
MF		 505 if (!info || !info->hdev)
506 /* our irq handler is shared */
507 return IRQ_NONE;
1da177e4
LT		 508
509 if (!test_bit(CARD_READY, &(info->hw_state)))
510 return IRQ_HANDLED;
511
9a017a91 512 iobase = info->p_dev->resource[0]->start;
1da177e4
LT		 513
514 spin_lock(&(info->lock));
515
516 /* Disable interrupt */
517 info->ctrl_reg &= ~REG_CONTROL_INTERRUPT;
518 outb(info->ctrl_reg, iobase + REG_CONTROL);
519
520 reg = inb(iobase + REG_INTERRUPT);
521
522 if ((reg != 0x00) && (reg != 0xff)) {
523
524 if (reg & 0x04) {
525 bluecard_receive(info, 0x00);
526 outb(0x04, iobase + REG_INTERRUPT);
527 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
528 }
529
530 if (reg & 0x08) {
531 bluecard_receive(info, 0x10);
532 outb(0x08, iobase + REG_INTERRUPT);
533 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
534 }
535
536 if (reg & 0x01) {
537 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
538 outb(0x01, iobase + REG_INTERRUPT);
539 bluecard_write_wakeup(info);
540 }
541
542 if (reg & 0x02) {
543 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
544 outb(0x02, iobase + REG_INTERRUPT);
545 bluecard_write_wakeup(info);
546 }
547
548 }
549
550 /* Enable interrupt */
551 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
552 outb(info->ctrl_reg, iobase + REG_CONTROL);
553
554 spin_unlock(&(info->lock));
555
556 return IRQ_HANDLED;
557}
558
559
560
561/* ======================== Device specific HCI commands ======================== */
562
563
564static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
565{
d664cd98 566 struct bluecard_info *info = hci_get_drvdata(hdev);
1da177e4
LT		 567 struct sk_buff *skb;
568
569 /* Ericsson baud rate command */
570 unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
571
a08b15e6
VI		 572 skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
573 if (!skb) {
1da177e4
LT		 574 BT_ERR("Can't allocate mem for new packet");
575 return -1;
576 }
577
578 switch (baud) {
579 case 460800:
580 cmd[4] = 0x00;
618e8bc2 581 hci_skb_pkt_type(skb) = PKT_BAUD_RATE_460800;
1da177e4
LT		 582 break;
583 case 230400:
584 cmd[4] = 0x01;
618e8bc2 585 hci_skb_pkt_type(skb) = PKT_BAUD_RATE_230400;
1da177e4
LT		 586 break;
587 case 115200:
588 cmd[4] = 0x02;
618e8bc2 589 hci_skb_pkt_type(skb) = PKT_BAUD_RATE_115200;
1da177e4
LT		 590 break;
591 case 57600:
592 /* Fall through... */
593 default:
594 cmd[4] = 0x03;
618e8bc2 595 hci_skb_pkt_type(skb) = PKT_BAUD_RATE_57600;
1da177e4
LT		 596 break;
597 }
598
59ae1d12 599 skb_put_data(skb, cmd, sizeof(cmd));
1da177e4
LT		 600
601 skb_queue_tail(&(info->txq), skb);
602
603 bluecard_write_wakeup(info);
604
605 return 0;
606}
607
608
609
610/* ======================== HCI interface ======================== */
611
612
613static int bluecard_hci_flush(struct hci_dev *hdev)
614{
d664cd98 615 struct bluecard_info *info = hci_get_drvdata(hdev);
1da177e4
LT		 616
617 /* Drop TX queue */
618 skb_queue_purge(&(info->txq));
619
620 return 0;
621}
622
623
624static int bluecard_hci_open(struct hci_dev *hdev)
625{
d664cd98 626 struct bluecard_info *info = hci_get_drvdata(hdev);
df44f531 627 unsigned int iobase = info->p_dev->resource[0]->start;
1da177e4
LT		 628
629 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
630 bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
631
859d2351 632 /* Enable power LED */
df44f531 633 outb(0x08 | 0x20, iobase + 0x30);
1da177e4
LT		 634
635 return 0;
636}
637
638
639static int bluecard_hci_close(struct hci_dev *hdev)
640{
d664cd98 641 struct bluecard_info *info = hci_get_drvdata(hdev);
df44f531 642 unsigned int iobase = info->p_dev->resource[0]->start;
1da177e4 643
1da177e4
LT		 644 bluecard_hci_flush(hdev);
645
859d2351
OZ		 646 /* Stop LED timer */
647 del_timer_sync(&(info->timer));
648
649 /* Disable power LED */
df44f531 650 outb(0x00, iobase + 0x30);
1da177e4
LT		 651
652 return 0;
653}
654
655
7bd8f09f 656static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
1da177e4 657{
d664cd98 658 struct bluecard_info *info = hci_get_drvdata(hdev);
1da177e4 659
618e8bc2 660 switch (hci_skb_pkt_type(skb)) {
1da177e4
LT		 661 case HCI_COMMAND_PKT:
662 hdev->stat.cmd_tx++;
663 break;
664 case HCI_ACLDATA_PKT:
665 hdev->stat.acl_tx++;
666 break;
667 case HCI_SCODATA_PKT:
668 hdev->stat.sco_tx++;
669 break;
ce9b0048 670 }
1da177e4
LT		 671
672 /* Prepend skb with frame type */
618e8bc2 673 memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
1da177e4
LT		 674 skb_queue_tail(&(info->txq), skb);
675
676 bluecard_write_wakeup(info);
677
678 return 0;
679}
680
681
1da177e4
LT		 682
683/* ======================== Card services HCI interaction ======================== */
684
685
d664cd98 686static int bluecard_open(struct bluecard_info *info)
1da177e4 687{
9a017a91 688 unsigned int iobase = info->p_dev->resource[0]->start;
1da177e4
LT		 689 struct hci_dev *hdev;
690 unsigned char id;
691
692 spin_lock_init(&(info->lock));
693
45984856
GT		 694 setup_timer(&(info->timer), &bluecard_activity_led_timeout,
695 (u_long)info);
1da177e4
LT		 696
697 skb_queue_head_init(&(info->txq));
698
699 info->rx_state = RECV_WAIT_PACKET_TYPE;
700 info->rx_count = 0;
701 info->rx_skb = NULL;
702
703 /* Initialize HCI device */
704 hdev = hci_alloc_dev();
705 if (!hdev) {
706 BT_ERR("Can't allocate HCI device");
707 return -ENOMEM;
708 }
709
710 info->hdev = hdev;
711
c13854ce 712 hdev->bus = HCI_PCCARD;
155961e8 713 hci_set_drvdata(hdev, info);
27d35284 714 SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
1da177e4 715
87d82ee2
MH		 716 hdev->open = bluecard_hci_open;
717 hdev->close = bluecard_hci_close;
718 hdev->flush = bluecard_hci_flush;
719 hdev->send = bluecard_hci_send_frame;
1da177e4 720
1da177e4
LT		 721 id = inb(iobase + 0x30);
722
723 if ((id & 0x0f) == 0x02)
724 set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state));
725
726 if (id & 0x10)
727 set_bit(CARD_HAS_POWER_LED, &(info->hw_state));
728
729 if (id & 0x20)
730 set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state));
731
732 /* Reset card */
733 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
734 outb(info->ctrl_reg, iobase + REG_CONTROL);
735
736 /* Turn FPGA off */
737 outb(0x80, iobase + 0x30);
738
739 /* Wait some time */
740 msleep(10);
741
742 /* Turn FPGA on */
743 outb(0x00, iobase + 0x30);
744
745 /* Activate card */
746 info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU;
747 outb(info->ctrl_reg, iobase + REG_CONTROL);
748
749 /* Enable interrupt */
750 outb(0xff, iobase + REG_INTERRUPT);
751 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
752 outb(info->ctrl_reg, iobase + REG_CONTROL);
753
754 if ((id & 0x0f) == 0x03) {
755 /* Disable RTS */
756 info->ctrl_reg |= REG_CONTROL_RTS;
757 outb(info->ctrl_reg, iobase + REG_CONTROL);
758
759 /* Set baud rate */
760 info->ctrl_reg |= 0x03;
761 outb(info->ctrl_reg, iobase + REG_CONTROL);
762
763 /* Enable RTS */
764 info->ctrl_reg &= ~REG_CONTROL_RTS;
765 outb(info->ctrl_reg, iobase + REG_CONTROL);
766
767 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
768 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
769 set_bit(XMIT_SENDING_READY, &(info->tx_state));
770 }
771
772 /* Start the RX buffers */
773 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
774 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
775
776 /* Signal that the hardware is ready */
777 set_bit(CARD_READY, &(info->hw_state));
778
779 /* Drop TX queue */
780 skb_queue_purge(&(info->txq));
781
782 /* Control the point at which RTS is enabled */
783 outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
784
785 /* Timeout before it is safe to send the first HCI packet */
786 msleep(1250);
787
788 /* Register HCI device */
789 if (hci_register_dev(hdev) < 0) {
790 BT_ERR("Can't register HCI device");
791 info->hdev = NULL;
792 hci_free_dev(hdev);
793 return -ENODEV;
794 }
795
796 return 0;
797}
798
799
d664cd98 800static int bluecard_close(struct bluecard_info *info)
1da177e4 801{
9a017a91 802 unsigned int iobase = info->p_dev->resource[0]->start;
1da177e4
LT		 803 struct hci_dev *hdev = info->hdev;
804
805 if (!hdev)
806 return -ENODEV;
807
808 bluecard_hci_close(hdev);
809
810 clear_bit(CARD_READY, &(info->hw_state));
811
812 /* Reset card */
813 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
814 outb(info->ctrl_reg, iobase + REG_CONTROL);
815
816 /* Turn FPGA off */
817 outb(0x80, iobase + 0x30);
818
13ea4015 819 hci_unregister_dev(hdev);
1da177e4
LT		 820 hci_free_dev(hdev);
821
822 return 0;
823}
824
15b99ac1 825static int bluecard_probe(struct pcmcia_device *link)
1da177e4 826{
d664cd98 827 struct bluecard_info *info;
1da177e4
LT		 828
829 /* Create new info device */
1a31c602 830 info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL);
1da177e4 831 if (!info)
f8cfa618 832 return -ENOMEM;
1da177e4 833
fba395ee 834 info->p_dev = link;
1da177e4
LT		 835 link->priv = info;
836
1ac71e5a 837 link->config_flags |= CONF_ENABLE_IRQ;
1da177e4 838
15b99ac1 839 return bluecard_config(link);
1da177e4
LT		 840}
841
842
fba395ee 843static void bluecard_detach(struct pcmcia_device *link)
1da177e4 844{
e2d40963 845 bluecard_release(link);
1da177e4
LT		 846}
847
848
15b99ac1 849static int bluecard_config(struct pcmcia_device *link)
1da177e4 850{
d664cd98 851 struct bluecard_info *info = link->priv;
af2b3b50 852 int i, n;
1da177e4 853
7feabb64 854 link->config_index = 0x20;
90abdc3b
DB		 855
856 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
857 link->resource[0]->end = 64;
858 link->io_lines = 6;
1da177e4
LT		 859
860 for (n = 0; n < 0x400; n += 0x40) {
90abdc3b
DB		 861 link->resource[0]->start = n ^ 0x300;
862 i = pcmcia_request_io(link);
4c89e88b 863 if (i == 0)
1da177e4
LT		 864 break;
865 }
866
9ac3e58c 867 if (i != 0)
1da177e4 868 goto failed;
1da177e4 869
eb14120f 870 i = pcmcia_request_irq(link, bluecard_interrupt);
9ac3e58c 871 if (i != 0)
eb14120f 872 goto failed;
1da177e4 873
1ac71e5a 874 i = pcmcia_enable_device(link);
9ac3e58c 875 if (i != 0)
1da177e4 876 goto failed;
1da177e4
LT		 877
878 if (bluecard_open(info) != 0)
879 goto failed;
880
15b99ac1 881 return 0;
1da177e4 882
1da177e4
LT		 883failed:
884 bluecard_release(link);
15b99ac1 885 return -ENODEV;
1da177e4
LT		 886}
887
888
fba395ee 889static void bluecard_release(struct pcmcia_device *link)
1da177e4 890{
d664cd98 891 struct bluecard_info *info = link->priv;
1da177e4 892
e2d40963 893 bluecard_close(info);
1da177e4 894
d8ff9cdf 895 del_timer_sync(&(info->timer));
1da177e4 896
fba395ee 897 pcmcia_disable_device(link);
1da177e4
LT		 898}
899
25f8f54f 900static const struct pcmcia_device_id bluecard_ids[] = {
7f70cb6d
DB		 901 PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e),
902 PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c),
903 PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab),
904 PCMCIA_DEVICE_NULL
905};
906MODULE_DEVICE_TABLE(pcmcia, bluecard_ids);
907
1da177e4
LT		 908static struct pcmcia_driver bluecard_driver = {
909 .owner = THIS_MODULE,
2e9b981a 910 .name = "bluecard_cs",
15b99ac1 911 .probe = bluecard_probe,
cc3b4866 912 .remove = bluecard_detach,
7f70cb6d 913 .id_table = bluecard_ids,
1da177e4 914};
e0c005f4 915module_pcmcia_driver(bluecard_driver);
Arne's tree of linux kernel.