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i915: Fix spurious TV detection after 9d0498a2bf + 9559fcdbff
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / bluetooth / bluecard_cs.c
blobd52e90a5a61750494a6c740e4dd4565fb00f788e
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
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>
40 #include <linux/io.h>
41
42 #include <pcmcia/cs.h>
43 #include <pcmcia/cistpl.h>
44 #include <pcmcia/ciscode.h>
45 #include <pcmcia/ds.h>
46 #include <pcmcia/cisreg.h>
47
48 #include <net/bluetooth/bluetooth.h>
49 #include <net/bluetooth/hci_core.h>
50
51
52
53 /* ======================== Module parameters ======================== */
54
55
56 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
57 MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)");
58 MODULE_LICENSE("GPL");
59
60
61
62 /* ======================== Local structures ======================== */
63
64
65 typedef struct bluecard_info_t {
66 struct pcmcia_device *p_dev;
67
68 struct hci_dev *hdev;
69
70 spinlock_t lock; /* For serializing operations */
71 struct timer_list timer; /* For LED control */
72
73 struct sk_buff_head txq;
74 unsigned long tx_state;
75
76 unsigned long rx_state;
77 unsigned long rx_count;
78 struct sk_buff *rx_skb;
79
80 unsigned char ctrl_reg;
81 unsigned long hw_state; /* Status of the hardware and LED control */
82 } bluecard_info_t;
83
84
85 static int bluecard_config(struct pcmcia_device *link);
86 static void bluecard_release(struct pcmcia_device *link);
87
88 static void bluecard_detach(struct pcmcia_device *p_dev);
89
90
91 /* Default baud rate: 57600, 115200, 230400 or 460800 */
92 #define DEFAULT_BAUD_RATE 230400
93
94
95 /* Hardware states */
96 #define CARD_READY 1
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
159 static void bluecard_activity_led_timeout(u_long arg)
160 {
161 bluecard_info_t *info = (bluecard_info_t *)arg;
162 unsigned int iobase = info->p_dev->resource[0]->start;
163
164 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
165 return;
166
167 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
168 /* Disable activity LED */
169 outb(0x08 | 0x20, iobase + 0x30);
170 } else {
171 /* Disable power LED */
172 outb(0x00, iobase + 0x30);
173 }
174 }
175
176
177 static void bluecard_enable_activity_led(bluecard_info_t *info)
178 {
179 unsigned int iobase = info->p_dev->resource[0]->start;
180
181 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
182 return;
183
184 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
185 /* Enable activity LED */
186 outb(0x10 | 0x40, iobase + 0x30);
187
188 /* Stop the LED after HZ/4 */
189 mod_timer(&(info->timer), jiffies + HZ / 4);
190 } else {
191 /* Enable power LED */
192 outb(0x08 | 0x20, iobase + 0x30);
193
194 /* Stop the LED after HZ/2 */
195 mod_timer(&(info->timer), jiffies + HZ / 2);
196 }
197 }
198
199
200
201 /* ======================== Interrupt handling ======================== */
202
203
204 static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len)
205 {
206 int i, actual;
207
208 actual = (len > 15) ? 15 : len;
209
210 outb_p(actual, iobase + offset);
211
212 for (i = 0; i < actual; i++)
213 outb_p(buf[i], iobase + offset + i + 1);
214
215 return actual;
216 }
217
218
219 static void bluecard_write_wakeup(bluecard_info_t *info)
220 {
221 if (!info) {
222 BT_ERR("Unknown device");
223 return;
224 }
225
226 if (!test_bit(XMIT_SENDING_READY, &(info->tx_state)))
227 return;
228
229 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
230 set_bit(XMIT_WAKEUP, &(info->tx_state));
231 return;
232 }
233
234 do {
235 register unsigned int iobase = info->p_dev->resource[0]->start;
236 register unsigned int offset;
237 register unsigned char command;
238 register unsigned long ready_bit;
239 register struct sk_buff *skb;
240 register int len;
241
242 clear_bit(XMIT_WAKEUP, &(info->tx_state));
243
244 if (!pcmcia_dev_present(info->p_dev))
245 return;
246
247 if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) {
248 if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state)))
249 break;
250 offset = 0x10;
251 command = REG_COMMAND_TX_BUF_TWO;
252 ready_bit = XMIT_BUF_TWO_READY;
253 } else {
254 if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state)))
255 break;
256 offset = 0x00;
257 command = REG_COMMAND_TX_BUF_ONE;
258 ready_bit = XMIT_BUF_ONE_READY;
259 }
260
261 if (!(skb = skb_dequeue(&(info->txq))))
262 break;
263
264 if (bt_cb(skb)->pkt_type & 0x80) {
265 /* Disable RTS */
266 info->ctrl_reg |= REG_CONTROL_RTS;
267 outb(info->ctrl_reg, iobase + REG_CONTROL);
268 }
269
270 /* Activate LED */
271 bluecard_enable_activity_led(info);
272
273 /* Send frame */
274 len = bluecard_write(iobase, offset, skb->data, skb->len);
275
276 /* Tell the FPGA to send the data */
277 outb_p(command, iobase + REG_COMMAND);
278
279 /* Mark the buffer as dirty */
280 clear_bit(ready_bit, &(info->tx_state));
281
282 if (bt_cb(skb)->pkt_type & 0x80) {
283 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
284 DEFINE_WAIT(wait);
285
286 unsigned char baud_reg;
287
288 switch (bt_cb(skb)->pkt_type) {
289 case PKT_BAUD_RATE_460800:
290 baud_reg = REG_CONTROL_BAUD_RATE_460800;
291 break;
292 case PKT_BAUD_RATE_230400:
293 baud_reg = REG_CONTROL_BAUD_RATE_230400;
294 break;
295 case PKT_BAUD_RATE_115200:
296 baud_reg = REG_CONTROL_BAUD_RATE_115200;
297 break;
298 case PKT_BAUD_RATE_57600:
299 /* Fall through... */
300 default:
301 baud_reg = REG_CONTROL_BAUD_RATE_57600;
302 break;
303 }
304
305 /* Wait until the command reaches the baseband */
306 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
307 schedule_timeout(HZ/10);
308 finish_wait(&wq, &wait);
309
310 /* Set baud on baseband */
311 info->ctrl_reg &= ~0x03;
312 info->ctrl_reg |= baud_reg;
313 outb(info->ctrl_reg, iobase + REG_CONTROL);
314
315 /* Enable RTS */
316 info->ctrl_reg &= ~REG_CONTROL_RTS;
317 outb(info->ctrl_reg, iobase + REG_CONTROL);
318
319 /* Wait before the next HCI packet can be send */
320 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
321 schedule_timeout(HZ);
322 finish_wait(&wq, &wait);
323 }
324
325 if (len == skb->len) {
326 kfree_skb(skb);
327 } else {
328 skb_pull(skb, len);
329 skb_queue_head(&(info->txq), skb);
330 }
331
332 info->hdev->stat.byte_tx += len;
333
334 /* Change buffer */
335 change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state));
336
337 } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
338
339 clear_bit(XMIT_SENDING, &(info->tx_state));
340 }
341
342
343 static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size)
344 {
345 int i, n, len;
346
347 outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND);
348
349 len = inb(iobase + offset);
350 n = 0;
351 i = 1;
352
353 while (n < len) {
354
355 if (i == 16) {
356 outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND);
357 i = 0;
358 }
359
360 buf[n] = inb(iobase + offset + i);
361
362 n++;
363 i++;
364
365 }
366
367 return len;
368 }
369
370
371 static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
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
382 iobase = info->p_dev->resource[0]->start;
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 */
392 if (info->rx_skb == NULL) {
393 info->rx_state = RECV_WAIT_PACKET_TYPE;
394 info->rx_count = 0;
395 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
396 BT_ERR("Can't allocate mem for new packet");
397 return;
398 }
399 }
400
401 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
402
403 info->rx_skb->dev = (void *) info->hdev;
404 bt_cb(info->rx_skb)->pkt_type = buf[i];
405
406 switch (bt_cb(info->rx_skb)->pkt_type) {
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 */
438 BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
439 info->hdev->stat.err_rx++;
440
441 kfree_skb(info->rx_skb);
442 info->rx_skb = NULL;
443 break;
444
445 }
446
447 } else {
448
449 *skb_put(info->rx_skb, 1) = buf[i];
450 info->rx_count--;
451
452 if (info->rx_count == 0) {
453
454 int dlen;
455 struct hci_event_hdr *eh;
456 struct hci_acl_hdr *ah;
457 struct hci_sco_hdr *sh;
458
459 switch (info->rx_state) {
460
461 case RECV_WAIT_EVENT_HEADER:
462 eh = hci_event_hdr(info->rx_skb);
463 info->rx_state = RECV_WAIT_DATA;
464 info->rx_count = eh->plen;
465 break;
466
467 case RECV_WAIT_ACL_HEADER:
468 ah = hci_acl_hdr(info->rx_skb);
469 dlen = __le16_to_cpu(ah->dlen);
470 info->rx_state = RECV_WAIT_DATA;
471 info->rx_count = dlen;
472 break;
473
474 case RECV_WAIT_SCO_HEADER:
475 sh = hci_sco_hdr(info->rx_skb);
476 info->rx_state = RECV_WAIT_DATA;
477 info->rx_count = sh->dlen;
478 break;
479
480 case RECV_WAIT_DATA:
481 hci_recv_frame(info->rx_skb);
482 info->rx_skb = NULL;
483 break;
484
485 }
486
487 }
488
489 }
490
491
492 }
493
494 info->hdev->stat.byte_rx += len;
495 }
496
497
498 static irqreturn_t bluecard_interrupt(int irq, void *dev_inst)
499 {
500 bluecard_info_t *info = dev_inst;
501 unsigned int iobase;
502 unsigned char reg;
503
504 if (!info || !info->hdev)
505 /* our irq handler is shared */
506 return IRQ_NONE;
507
508 if (!test_bit(CARD_READY, &(info->hw_state)))
509 return IRQ_HANDLED;
510
511 iobase = info->p_dev->resource[0]->start;
512
513 spin_lock(&(info->lock));
514
515 /* Disable interrupt */
516 info->ctrl_reg &= ~REG_CONTROL_INTERRUPT;
517 outb(info->ctrl_reg, iobase + REG_CONTROL);
518
519 reg = inb(iobase + REG_INTERRUPT);
520
521 if ((reg != 0x00) && (reg != 0xff)) {
522
523 if (reg & 0x04) {
524 bluecard_receive(info, 0x00);
525 outb(0x04, iobase + REG_INTERRUPT);
526 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
527 }
528
529 if (reg & 0x08) {
530 bluecard_receive(info, 0x10);
531 outb(0x08, iobase + REG_INTERRUPT);
532 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
533 }
534
535 if (reg & 0x01) {
536 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
537 outb(0x01, iobase + REG_INTERRUPT);
538 bluecard_write_wakeup(info);
539 }
540
541 if (reg & 0x02) {
542 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
543 outb(0x02, iobase + REG_INTERRUPT);
544 bluecard_write_wakeup(info);
545 }
546
547 }
548
549 /* Enable interrupt */
550 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
551 outb(info->ctrl_reg, iobase + REG_CONTROL);
552
553 spin_unlock(&(info->lock));
554
555 return IRQ_HANDLED;
556 }
557
558
559
560 /* ======================== Device specific HCI commands ======================== */
561
562
563 static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
564 {
565 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
566 struct sk_buff *skb;
567
568 /* Ericsson baud rate command */
569 unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
570
571 if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
572 BT_ERR("Can't allocate mem for new packet");
573 return -1;
574 }
575
576 switch (baud) {
577 case 460800:
578 cmd[4] = 0x00;
579 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800;
580 break;
581 case 230400:
582 cmd[4] = 0x01;
583 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400;
584 break;
585 case 115200:
586 cmd[4] = 0x02;
587 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200;
588 break;
589 case 57600:
590 /* Fall through... */
591 default:
592 cmd[4] = 0x03;
593 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600;
594 break;
595 }
596
597 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
598
599 skb_queue_tail(&(info->txq), skb);
600
601 bluecard_write_wakeup(info);
602
603 return 0;
604 }
605
606
607
608 /* ======================== HCI interface ======================== */
609
610
611 static int bluecard_hci_flush(struct hci_dev *hdev)
612 {
613 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
614
615 /* Drop TX queue */
616 skb_queue_purge(&(info->txq));
617
618 return 0;
619 }
620
621
622 static int bluecard_hci_open(struct hci_dev *hdev)
623 {
624 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
625 unsigned int iobase = info->p_dev->resource[0]->start;
626
627 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
628 bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
629
630 if (test_and_set_bit(HCI_RUNNING, &(hdev->flags)))
631 return 0;
632
633 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
634 /* Enable LED */
635 outb(0x08 | 0x20, iobase + 0x30);
636 }
637
638 return 0;
639 }
640
641
642 static int bluecard_hci_close(struct hci_dev *hdev)
643 {
644 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
645 unsigned int iobase = info->p_dev->resource[0]->start;
646
647 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
648 return 0;
649
650 bluecard_hci_flush(hdev);
651
652 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
653 /* Disable LED */
654 outb(0x00, iobase + 0x30);
655 }
656
657 return 0;
658 }
659
660
661 static int bluecard_hci_send_frame(struct sk_buff *skb)
662 {
663 bluecard_info_t *info;
664 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
665
666 if (!hdev) {
667 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
668 return -ENODEV;
669 }
670
671 info = (bluecard_info_t *)(hdev->driver_data);
672
673 switch (bt_cb(skb)->pkt_type) {
674 case HCI_COMMAND_PKT:
675 hdev->stat.cmd_tx++;
676 break;
677 case HCI_ACLDATA_PKT:
678 hdev->stat.acl_tx++;
679 break;
680 case HCI_SCODATA_PKT:
681 hdev->stat.sco_tx++;
682 break;
683 };
684
685 /* Prepend skb with frame type */
686 memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
687 skb_queue_tail(&(info->txq), skb);
688
689 bluecard_write_wakeup(info);
690
691 return 0;
692 }
693
694
695 static void bluecard_hci_destruct(struct hci_dev *hdev)
696 {
697 }
698
699
700 static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
701 {
702 return -ENOIOCTLCMD;
703 }
704
705
706
707 /* ======================== Card services HCI interaction ======================== */
708
709
710 static int bluecard_open(bluecard_info_t *info)
711 {
712 unsigned int iobase = info->p_dev->resource[0]->start;
713 struct hci_dev *hdev;
714 unsigned char id;
715
716 spin_lock_init(&(info->lock));
717
718 init_timer(&(info->timer));
719 info->timer.function = &bluecard_activity_led_timeout;
720 info->timer.data = (u_long)info;
721
722 skb_queue_head_init(&(info->txq));
723
724 info->rx_state = RECV_WAIT_PACKET_TYPE;
725 info->rx_count = 0;
726 info->rx_skb = NULL;
727
728 /* Initialize HCI device */
729 hdev = hci_alloc_dev();
730 if (!hdev) {
731 BT_ERR("Can't allocate HCI device");
732 return -ENOMEM;
733 }
734
735 info->hdev = hdev;
736
737 hdev->bus = HCI_PCCARD;
738 hdev->driver_data = info;
739 SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
740
741 hdev->open = bluecard_hci_open;
742 hdev->close = bluecard_hci_close;
743 hdev->flush = bluecard_hci_flush;
744 hdev->send = bluecard_hci_send_frame;
745 hdev->destruct = bluecard_hci_destruct;
746 hdev->ioctl = bluecard_hci_ioctl;
747
748 hdev->owner = THIS_MODULE;
749
750 id = inb(iobase + 0x30);
751
752 if ((id & 0x0f) == 0x02)
753 set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state));
754
755 if (id & 0x10)
756 set_bit(CARD_HAS_POWER_LED, &(info->hw_state));
757
758 if (id & 0x20)
759 set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state));
760
761 /* Reset card */
762 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
763 outb(info->ctrl_reg, iobase + REG_CONTROL);
764
765 /* Turn FPGA off */
766 outb(0x80, iobase + 0x30);
767
768 /* Wait some time */
769 msleep(10);
770
771 /* Turn FPGA on */
772 outb(0x00, iobase + 0x30);
773
774 /* Activate card */
775 info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU;
776 outb(info->ctrl_reg, iobase + REG_CONTROL);
777
778 /* Enable interrupt */
779 outb(0xff, iobase + REG_INTERRUPT);
780 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
781 outb(info->ctrl_reg, iobase + REG_CONTROL);
782
783 if ((id & 0x0f) == 0x03) {
784 /* Disable RTS */
785 info->ctrl_reg |= REG_CONTROL_RTS;
786 outb(info->ctrl_reg, iobase + REG_CONTROL);
787
788 /* Set baud rate */
789 info->ctrl_reg |= 0x03;
790 outb(info->ctrl_reg, iobase + REG_CONTROL);
791
792 /* Enable RTS */
793 info->ctrl_reg &= ~REG_CONTROL_RTS;
794 outb(info->ctrl_reg, iobase + REG_CONTROL);
795
796 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
797 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
798 set_bit(XMIT_SENDING_READY, &(info->tx_state));
799 }
800
801 /* Start the RX buffers */
802 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
803 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
804
805 /* Signal that the hardware is ready */
806 set_bit(CARD_READY, &(info->hw_state));
807
808 /* Drop TX queue */
809 skb_queue_purge(&(info->txq));
810
811 /* Control the point at which RTS is enabled */
812 outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
813
814 /* Timeout before it is safe to send the first HCI packet */
815 msleep(1250);
816
817 /* Register HCI device */
818 if (hci_register_dev(hdev) < 0) {
819 BT_ERR("Can't register HCI device");
820 info->hdev = NULL;
821 hci_free_dev(hdev);
822 return -ENODEV;
823 }
824
825 return 0;
826 }
827
828
829 static int bluecard_close(bluecard_info_t *info)
830 {
831 unsigned int iobase = info->p_dev->resource[0]->start;
832 struct hci_dev *hdev = info->hdev;
833
834 if (!hdev)
835 return -ENODEV;
836
837 bluecard_hci_close(hdev);
838
839 clear_bit(CARD_READY, &(info->hw_state));
840
841 /* Reset card */
842 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
843 outb(info->ctrl_reg, iobase + REG_CONTROL);
844
845 /* Turn FPGA off */
846 outb(0x80, iobase + 0x30);
847
848 if (hci_unregister_dev(hdev) < 0)
849 BT_ERR("Can't unregister HCI device %s", hdev->name);
850
851 hci_free_dev(hdev);
852
853 return 0;
854 }
855
856 static int bluecard_probe(struct pcmcia_device *link)
857 {
858 bluecard_info_t *info;
859
860 /* Create new info device */
861 info = kzalloc(sizeof(*info), GFP_KERNEL);
862 if (!info)
863 return -ENOMEM;
864
865 info->p_dev = link;
866 link->priv = info;
867
868 link->conf.Attributes = CONF_ENABLE_IRQ;
869 link->conf.IntType = INT_MEMORY_AND_IO;
870
871 return bluecard_config(link);
872 }
873
874
875 static void bluecard_detach(struct pcmcia_device *link)
876 {
877 bluecard_info_t *info = link->priv;
878
879 bluecard_release(link);
880 kfree(info);
881 }
882
883
884 static int bluecard_config(struct pcmcia_device *link)
885 {
886 bluecard_info_t *info = link->priv;
887 int i, n;
888
889 link->conf.ConfigIndex = 0x20;
890
891 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
892 link->resource[0]->end = 64;
893 link->io_lines = 6;
894
895 for (n = 0; n < 0x400; n += 0x40) {
896 link->resource[0]->start = n ^ 0x300;
897 i = pcmcia_request_io(link);
898 if (i == 0)
899 break;
900 }
901
902 if (i != 0)
903 goto failed;
904
905 i = pcmcia_request_irq(link, bluecard_interrupt);
906 if (i != 0)
907 goto failed;
908
909 i = pcmcia_request_configuration(link, &link->conf);
910 if (i != 0)
911 goto failed;
912
913 if (bluecard_open(info) != 0)
914 goto failed;
915
916 return 0;
917
918 failed:
919 bluecard_release(link);
920 return -ENODEV;
921 }
922
923
924 static void bluecard_release(struct pcmcia_device *link)
925 {
926 bluecard_info_t *info = link->priv;
927
928 bluecard_close(info);
929
930 del_timer(&(info->timer));
931
932 pcmcia_disable_device(link);
933 }
934
935 static struct pcmcia_device_id bluecard_ids[] = {
936 PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e),
937 PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c),
938 PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab),
939 PCMCIA_DEVICE_NULL
940 };
941 MODULE_DEVICE_TABLE(pcmcia, bluecard_ids);
942
943 static struct pcmcia_driver bluecard_driver = {
944 .owner = THIS_MODULE,
945 .drv = {
946 .name = "bluecard_cs",
947 },
948 .probe = bluecard_probe,
949 .remove = bluecard_detach,
950 .id_table = bluecard_ids,
951 };
952
953 static int __init init_bluecard_cs(void)
954 {
955 return pcmcia_register_driver(&bluecard_driver);
956 }
957
958
959 static void __exit exit_bluecard_cs(void)
960 {
961 pcmcia_unregister_driver(&bluecard_driver);
962 }
963
964 module_init(init_bluecard_cs);
965 module_exit(exit_bluecard_cs);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree