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Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / bluetooth / bluecard_cs.c
blob9888bc1517555b7e85a1c7da2930bf1d71c76f68
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/config.h>
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>
30 #include <linux/sched.h>
31 #include <linux/delay.h>
32 #include <linux/timer.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 #include <linux/wait.h>
39
40 #include <linux/skbuff.h>
41 #include <asm/io.h>
42
43 #include <pcmcia/cs_types.h>
44 #include <pcmcia/cs.h>
45 #include <pcmcia/cistpl.h>
46 #include <pcmcia/ciscode.h>
47 #include <pcmcia/ds.h>
48 #include <pcmcia/cisreg.h>
49
50 #include <net/bluetooth/bluetooth.h>
51 #include <net/bluetooth/hci_core.h>
52
53
54
55 /* ======================== Module parameters ======================== */
56
57
58 MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
59 MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)");
60 MODULE_LICENSE("GPL");
61
62
63
64 /* ======================== Local structures ======================== */
65
66
67 typedef struct bluecard_info_t {
68 dev_link_t link;
69 dev_node_t node;
70
71 struct hci_dev *hdev;
72
73 spinlock_t lock; /* For serializing operations */
74 struct timer_list timer; /* For LED control */
75
76 struct sk_buff_head txq;
77 unsigned long tx_state;
78
79 unsigned long rx_state;
80 unsigned long rx_count;
81 struct sk_buff *rx_skb;
82
83 unsigned char ctrl_reg;
84 unsigned long hw_state; /* Status of the hardware and LED control */
85 } bluecard_info_t;
86
87
88 static void bluecard_config(dev_link_t *link);
89 static void bluecard_release(dev_link_t *link);
90
91 static void bluecard_detach(struct pcmcia_device *p_dev);
92
93
94 /* Default baud rate: 57600, 115200, 230400 or 460800 */
95 #define DEFAULT_BAUD_RATE 230400
96
97
98 /* Hardware states */
99 #define CARD_READY 1
100 #define CARD_HAS_PCCARD_ID 4
101 #define CARD_HAS_POWER_LED 5
102 #define CARD_HAS_ACTIVITY_LED 6
103
104 /* Transmit states */
105 #define XMIT_SENDING 1
106 #define XMIT_WAKEUP 2
107 #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */
108 #define XMIT_BUF_ONE_READY 6
109 #define XMIT_BUF_TWO_READY 7
110 #define XMIT_SENDING_READY 8
111
112 /* Receiver states */
113 #define RECV_WAIT_PACKET_TYPE 0
114 #define RECV_WAIT_EVENT_HEADER 1
115 #define RECV_WAIT_ACL_HEADER 2
116 #define RECV_WAIT_SCO_HEADER 3
117 #define RECV_WAIT_DATA 4
118
119 /* Special packet types */
120 #define PKT_BAUD_RATE_57600 0x80
121 #define PKT_BAUD_RATE_115200 0x81
122 #define PKT_BAUD_RATE_230400 0x82
123 #define PKT_BAUD_RATE_460800 0x83
124
125
126 /* These are the register offsets */
127 #define REG_COMMAND 0x20
128 #define REG_INTERRUPT 0x21
129 #define REG_CONTROL 0x22
130 #define REG_RX_CONTROL 0x24
131 #define REG_CARD_RESET 0x30
132 #define REG_LED_CTRL 0x30
133
134 /* REG_COMMAND */
135 #define REG_COMMAND_TX_BUF_ONE 0x01
136 #define REG_COMMAND_TX_BUF_TWO 0x02
137 #define REG_COMMAND_RX_BUF_ONE 0x04
138 #define REG_COMMAND_RX_BUF_TWO 0x08
139 #define REG_COMMAND_RX_WIN_ONE 0x00
140 #define REG_COMMAND_RX_WIN_TWO 0x10
141
142 /* REG_CONTROL */
143 #define REG_CONTROL_BAUD_RATE_57600 0x00
144 #define REG_CONTROL_BAUD_RATE_115200 0x01
145 #define REG_CONTROL_BAUD_RATE_230400 0x02
146 #define REG_CONTROL_BAUD_RATE_460800 0x03
147 #define REG_CONTROL_RTS 0x04
148 #define REG_CONTROL_BT_ON 0x08
149 #define REG_CONTROL_BT_RESET 0x10
150 #define REG_CONTROL_BT_RES_PU 0x20
151 #define REG_CONTROL_INTERRUPT 0x40
152 #define REG_CONTROL_CARD_RESET 0x80
153
154 /* REG_RX_CONTROL */
155 #define RTS_LEVEL_SHIFT_BITS 0x02
156
157
158
159 /* ======================== LED handling routines ======================== */
160
161
162 static void bluecard_activity_led_timeout(u_long arg)
163 {
164 bluecard_info_t *info = (bluecard_info_t *)arg;
165 unsigned int iobase = info->link.io.BasePort1;
166
167 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
168 return;
169
170 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
171 /* Disable activity LED */
172 outb(0x08 | 0x20, iobase + 0x30);
173 } else {
174 /* Disable power LED */
175 outb(0x00, iobase + 0x30);
176 }
177 }
178
179
180 static void bluecard_enable_activity_led(bluecard_info_t *info)
181 {
182 unsigned int iobase = info->link.io.BasePort1;
183
184 if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
185 return;
186
187 if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) {
188 /* Enable activity LED */
189 outb(0x10 | 0x40, iobase + 0x30);
190
191 /* Stop the LED after HZ/4 */
192 mod_timer(&(info->timer), jiffies + HZ / 4);
193 } else {
194 /* Enable power LED */
195 outb(0x08 | 0x20, iobase + 0x30);
196
197 /* Stop the LED after HZ/2 */
198 mod_timer(&(info->timer), jiffies + HZ / 2);
199 }
200 }
201
202
203
204 /* ======================== Interrupt handling ======================== */
205
206
207 static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len)
208 {
209 int i, actual;
210
211 actual = (len > 15) ? 15 : len;
212
213 outb_p(actual, iobase + offset);
214
215 for (i = 0; i < actual; i++)
216 outb_p(buf[i], iobase + offset + i + 1);
217
218 return actual;
219 }
220
221
222 static void bluecard_write_wakeup(bluecard_info_t *info)
223 {
224 if (!info) {
225 BT_ERR("Unknown device");
226 return;
227 }
228
229 if (!test_bit(XMIT_SENDING_READY, &(info->tx_state)))
230 return;
231
232 if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) {
233 set_bit(XMIT_WAKEUP, &(info->tx_state));
234 return;
235 }
236
237 do {
238 register unsigned int iobase = info->link.io.BasePort1;
239 register unsigned int offset;
240 register unsigned char command;
241 register unsigned long ready_bit;
242 register struct sk_buff *skb;
243 register int len;
244
245 clear_bit(XMIT_WAKEUP, &(info->tx_state));
246
247 if (!(info->link.state & DEV_PRESENT))
248 return;
249
250 if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) {
251 if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state)))
252 break;
253 offset = 0x10;
254 command = REG_COMMAND_TX_BUF_TWO;
255 ready_bit = XMIT_BUF_TWO_READY;
256 } else {
257 if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state)))
258 break;
259 offset = 0x00;
260 command = REG_COMMAND_TX_BUF_ONE;
261 ready_bit = XMIT_BUF_ONE_READY;
262 }
263
264 if (!(skb = skb_dequeue(&(info->txq))))
265 break;
266
267 if (bt_cb(skb)->pkt_type & 0x80) {
268 /* Disable RTS */
269 info->ctrl_reg |= REG_CONTROL_RTS;
270 outb(info->ctrl_reg, iobase + REG_CONTROL);
271 }
272
273 /* Activate LED */
274 bluecard_enable_activity_led(info);
275
276 /* Send frame */
277 len = bluecard_write(iobase, offset, skb->data, skb->len);
278
279 /* Tell the FPGA to send the data */
280 outb_p(command, iobase + REG_COMMAND);
281
282 /* Mark the buffer as dirty */
283 clear_bit(ready_bit, &(info->tx_state));
284
285 if (bt_cb(skb)->pkt_type & 0x80) {
286 DECLARE_WAIT_QUEUE_HEAD(wq);
287 DEFINE_WAIT(wait);
288
289 unsigned char baud_reg;
290
291 switch (bt_cb(skb)->pkt_type) {
292 case PKT_BAUD_RATE_460800:
293 baud_reg = REG_CONTROL_BAUD_RATE_460800;
294 break;
295 case PKT_BAUD_RATE_230400:
296 baud_reg = REG_CONTROL_BAUD_RATE_230400;
297 break;
298 case PKT_BAUD_RATE_115200:
299 baud_reg = REG_CONTROL_BAUD_RATE_115200;
300 break;
301 case PKT_BAUD_RATE_57600:
302 /* Fall through... */
303 default:
304 baud_reg = REG_CONTROL_BAUD_RATE_57600;
305 break;
306 }
307
308 /* Wait until the command reaches the baseband */
309 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
310 schedule_timeout(HZ/10);
311 finish_wait(&wq, &wait);
312
313 /* Set baud on baseband */
314 info->ctrl_reg &= ~0x03;
315 info->ctrl_reg |= baud_reg;
316 outb(info->ctrl_reg, iobase + REG_CONTROL);
317
318 /* Enable RTS */
319 info->ctrl_reg &= ~REG_CONTROL_RTS;
320 outb(info->ctrl_reg, iobase + REG_CONTROL);
321
322 /* Wait before the next HCI packet can be send */
323 prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
324 schedule_timeout(HZ);
325 finish_wait(&wq, &wait);
326 }
327
328 if (len == skb->len) {
329 kfree_skb(skb);
330 } else {
331 skb_pull(skb, len);
332 skb_queue_head(&(info->txq), skb);
333 }
334
335 info->hdev->stat.byte_tx += len;
336
337 /* Change buffer */
338 change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state));
339
340 } while (test_bit(XMIT_WAKEUP, &(info->tx_state)));
341
342 clear_bit(XMIT_SENDING, &(info->tx_state));
343 }
344
345
346 static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size)
347 {
348 int i, n, len;
349
350 outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND);
351
352 len = inb(iobase + offset);
353 n = 0;
354 i = 1;
355
356 while (n < len) {
357
358 if (i == 16) {
359 outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND);
360 i = 0;
361 }
362
363 buf[n] = inb(iobase + offset + i);
364
365 n++;
366 i++;
367
368 }
369
370 return len;
371 }
372
373
374 static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
375 {
376 unsigned int iobase;
377 unsigned char buf[31];
378 int i, len;
379
380 if (!info) {
381 BT_ERR("Unknown device");
382 return;
383 }
384
385 iobase = info->link.io.BasePort1;
386
387 if (test_bit(XMIT_SENDING_READY, &(info->tx_state)))
388 bluecard_enable_activity_led(info);
389
390 len = bluecard_read(iobase, offset, buf, sizeof(buf));
391
392 for (i = 0; i < len; i++) {
393
394 /* Allocate packet */
395 if (info->rx_skb == NULL) {
396 info->rx_state = RECV_WAIT_PACKET_TYPE;
397 info->rx_count = 0;
398 if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
399 BT_ERR("Can't allocate mem for new packet");
400 return;
401 }
402 }
403
404 if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
405
406 info->rx_skb->dev = (void *) info->hdev;
407 bt_cb(info->rx_skb)->pkt_type = buf[i];
408
409 switch (bt_cb(info->rx_skb)->pkt_type) {
410
411 case 0x00:
412 /* init packet */
413 if (offset != 0x00) {
414 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
415 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
416 set_bit(XMIT_SENDING_READY, &(info->tx_state));
417 bluecard_write_wakeup(info);
418 }
419
420 kfree_skb(info->rx_skb);
421 info->rx_skb = NULL;
422 break;
423
424 case HCI_EVENT_PKT:
425 info->rx_state = RECV_WAIT_EVENT_HEADER;
426 info->rx_count = HCI_EVENT_HDR_SIZE;
427 break;
428
429 case HCI_ACLDATA_PKT:
430 info->rx_state = RECV_WAIT_ACL_HEADER;
431 info->rx_count = HCI_ACL_HDR_SIZE;
432 break;
433
434 case HCI_SCODATA_PKT:
435 info->rx_state = RECV_WAIT_SCO_HEADER;
436 info->rx_count = HCI_SCO_HDR_SIZE;
437 break;
438
439 default:
440 /* unknown packet */
441 BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type);
442 info->hdev->stat.err_rx++;
443
444 kfree_skb(info->rx_skb);
445 info->rx_skb = NULL;
446 break;
447
448 }
449
450 } else {
451
452 *skb_put(info->rx_skb, 1) = buf[i];
453 info->rx_count--;
454
455 if (info->rx_count == 0) {
456
457 int dlen;
458 struct hci_event_hdr *eh;
459 struct hci_acl_hdr *ah;
460 struct hci_sco_hdr *sh;
461
462 switch (info->rx_state) {
463
464 case RECV_WAIT_EVENT_HEADER:
465 eh = (struct hci_event_hdr *)(info->rx_skb->data);
466 info->rx_state = RECV_WAIT_DATA;
467 info->rx_count = eh->plen;
468 break;
469
470 case RECV_WAIT_ACL_HEADER:
471 ah = (struct hci_acl_hdr *)(info->rx_skb->data);
472 dlen = __le16_to_cpu(ah->dlen);
473 info->rx_state = RECV_WAIT_DATA;
474 info->rx_count = dlen;
475 break;
476
477 case RECV_WAIT_SCO_HEADER:
478 sh = (struct hci_sco_hdr *)(info->rx_skb->data);
479 info->rx_state = RECV_WAIT_DATA;
480 info->rx_count = sh->dlen;
481 break;
482
483 case RECV_WAIT_DATA:
484 hci_recv_frame(info->rx_skb);
485 info->rx_skb = NULL;
486 break;
487
488 }
489
490 }
491
492 }
493
494
495 }
496
497 info->hdev->stat.byte_rx += len;
498 }
499
500
501 static irqreturn_t bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs)
502 {
503 bluecard_info_t *info = dev_inst;
504 unsigned int iobase;
505 unsigned char reg;
506
507 if (!info || !info->hdev) {
508 BT_ERR("Call of irq %d for unknown device", irq);
509 return IRQ_NONE;
510 }
511
512 if (!test_bit(CARD_READY, &(info->hw_state)))
513 return IRQ_HANDLED;
514
515 iobase = info->link.io.BasePort1;
516
517 spin_lock(&(info->lock));
518
519 /* Disable interrupt */
520 info->ctrl_reg &= ~REG_CONTROL_INTERRUPT;
521 outb(info->ctrl_reg, iobase + REG_CONTROL);
522
523 reg = inb(iobase + REG_INTERRUPT);
524
525 if ((reg != 0x00) && (reg != 0xff)) {
526
527 if (reg & 0x04) {
528 bluecard_receive(info, 0x00);
529 outb(0x04, iobase + REG_INTERRUPT);
530 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
531 }
532
533 if (reg & 0x08) {
534 bluecard_receive(info, 0x10);
535 outb(0x08, iobase + REG_INTERRUPT);
536 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
537 }
538
539 if (reg & 0x01) {
540 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
541 outb(0x01, iobase + REG_INTERRUPT);
542 bluecard_write_wakeup(info);
543 }
544
545 if (reg & 0x02) {
546 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
547 outb(0x02, iobase + REG_INTERRUPT);
548 bluecard_write_wakeup(info);
549 }
550
551 }
552
553 /* Enable interrupt */
554 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
555 outb(info->ctrl_reg, iobase + REG_CONTROL);
556
557 spin_unlock(&(info->lock));
558
559 return IRQ_HANDLED;
560 }
561
562
563
564 /* ======================== Device specific HCI commands ======================== */
565
566
567 static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud)
568 {
569 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
570 struct sk_buff *skb;
571
572 /* Ericsson baud rate command */
573 unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 };
574
575 if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) {
576 BT_ERR("Can't allocate mem for new packet");
577 return -1;
578 }
579
580 switch (baud) {
581 case 460800:
582 cmd[4] = 0x00;
583 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800;
584 break;
585 case 230400:
586 cmd[4] = 0x01;
587 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400;
588 break;
589 case 115200:
590 cmd[4] = 0x02;
591 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200;
592 break;
593 case 57600:
594 /* Fall through... */
595 default:
596 cmd[4] = 0x03;
597 bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600;
598 break;
599 }
600
601 memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd));
602
603 skb_queue_tail(&(info->txq), skb);
604
605 bluecard_write_wakeup(info);
606
607 return 0;
608 }
609
610
611
612 /* ======================== HCI interface ======================== */
613
614
615 static int bluecard_hci_flush(struct hci_dev *hdev)
616 {
617 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
618
619 /* Drop TX queue */
620 skb_queue_purge(&(info->txq));
621
622 return 0;
623 }
624
625
626 static int bluecard_hci_open(struct hci_dev *hdev)
627 {
628 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
629 unsigned int iobase = info->link.io.BasePort1;
630
631 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)))
632 bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE);
633
634 if (test_and_set_bit(HCI_RUNNING, &(hdev->flags)))
635 return 0;
636
637 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
638 /* Enable LED */
639 outb(0x08 | 0x20, iobase + 0x30);
640 }
641
642 return 0;
643 }
644
645
646 static int bluecard_hci_close(struct hci_dev *hdev)
647 {
648 bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data);
649 unsigned int iobase = info->link.io.BasePort1;
650
651 if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags)))
652 return 0;
653
654 bluecard_hci_flush(hdev);
655
656 if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) {
657 /* Disable LED */
658 outb(0x00, iobase + 0x30);
659 }
660
661 return 0;
662 }
663
664
665 static int bluecard_hci_send_frame(struct sk_buff *skb)
666 {
667 bluecard_info_t *info;
668 struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
669
670 if (!hdev) {
671 BT_ERR("Frame for unknown HCI device (hdev=NULL)");
672 return -ENODEV;
673 }
674
675 info = (bluecard_info_t *)(hdev->driver_data);
676
677 switch (bt_cb(skb)->pkt_type) {
678 case HCI_COMMAND_PKT:
679 hdev->stat.cmd_tx++;
680 break;
681 case HCI_ACLDATA_PKT:
682 hdev->stat.acl_tx++;
683 break;
684 case HCI_SCODATA_PKT:
685 hdev->stat.sco_tx++;
686 break;
687 };
688
689 /* Prepend skb with frame type */
690 memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
691 skb_queue_tail(&(info->txq), skb);
692
693 bluecard_write_wakeup(info);
694
695 return 0;
696 }
697
698
699 static void bluecard_hci_destruct(struct hci_dev *hdev)
700 {
701 }
702
703
704 static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
705 {
706 return -ENOIOCTLCMD;
707 }
708
709
710
711 /* ======================== Card services HCI interaction ======================== */
712
713
714 static int bluecard_open(bluecard_info_t *info)
715 {
716 unsigned int iobase = info->link.io.BasePort1;
717 struct hci_dev *hdev;
718 unsigned char id;
719
720 spin_lock_init(&(info->lock));
721
722 init_timer(&(info->timer));
723 info->timer.function = &bluecard_activity_led_timeout;
724 info->timer.data = (u_long)info;
725
726 skb_queue_head_init(&(info->txq));
727
728 info->rx_state = RECV_WAIT_PACKET_TYPE;
729 info->rx_count = 0;
730 info->rx_skb = NULL;
731
732 /* Initialize HCI device */
733 hdev = hci_alloc_dev();
734 if (!hdev) {
735 BT_ERR("Can't allocate HCI device");
736 return -ENOMEM;
737 }
738
739 info->hdev = hdev;
740
741 hdev->type = HCI_PCCARD;
742 hdev->driver_data = info;
743
744 hdev->open = bluecard_hci_open;
745 hdev->close = bluecard_hci_close;
746 hdev->flush = bluecard_hci_flush;
747 hdev->send = bluecard_hci_send_frame;
748 hdev->destruct = bluecard_hci_destruct;
749 hdev->ioctl = bluecard_hci_ioctl;
750
751 hdev->owner = THIS_MODULE;
752
753 id = inb(iobase + 0x30);
754
755 if ((id & 0x0f) == 0x02)
756 set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state));
757
758 if (id & 0x10)
759 set_bit(CARD_HAS_POWER_LED, &(info->hw_state));
760
761 if (id & 0x20)
762 set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state));
763
764 /* Reset card */
765 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
766 outb(info->ctrl_reg, iobase + REG_CONTROL);
767
768 /* Turn FPGA off */
769 outb(0x80, iobase + 0x30);
770
771 /* Wait some time */
772 msleep(10);
773
774 /* Turn FPGA on */
775 outb(0x00, iobase + 0x30);
776
777 /* Activate card */
778 info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU;
779 outb(info->ctrl_reg, iobase + REG_CONTROL);
780
781 /* Enable interrupt */
782 outb(0xff, iobase + REG_INTERRUPT);
783 info->ctrl_reg |= REG_CONTROL_INTERRUPT;
784 outb(info->ctrl_reg, iobase + REG_CONTROL);
785
786 if ((id & 0x0f) == 0x03) {
787 /* Disable RTS */
788 info->ctrl_reg |= REG_CONTROL_RTS;
789 outb(info->ctrl_reg, iobase + REG_CONTROL);
790
791 /* Set baud rate */
792 info->ctrl_reg |= 0x03;
793 outb(info->ctrl_reg, iobase + REG_CONTROL);
794
795 /* Enable RTS */
796 info->ctrl_reg &= ~REG_CONTROL_RTS;
797 outb(info->ctrl_reg, iobase + REG_CONTROL);
798
799 set_bit(XMIT_BUF_ONE_READY, &(info->tx_state));
800 set_bit(XMIT_BUF_TWO_READY, &(info->tx_state));
801 set_bit(XMIT_SENDING_READY, &(info->tx_state));
802 }
803
804 /* Start the RX buffers */
805 outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND);
806 outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND);
807
808 /* Signal that the hardware is ready */
809 set_bit(CARD_READY, &(info->hw_state));
810
811 /* Drop TX queue */
812 skb_queue_purge(&(info->txq));
813
814 /* Control the point at which RTS is enabled */
815 outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL);
816
817 /* Timeout before it is safe to send the first HCI packet */
818 msleep(1250);
819
820 /* Register HCI device */
821 if (hci_register_dev(hdev) < 0) {
822 BT_ERR("Can't register HCI device");
823 info->hdev = NULL;
824 hci_free_dev(hdev);
825 return -ENODEV;
826 }
827
828 return 0;
829 }
830
831
832 static int bluecard_close(bluecard_info_t *info)
833 {
834 unsigned int iobase = info->link.io.BasePort1;
835 struct hci_dev *hdev = info->hdev;
836
837 if (!hdev)
838 return -ENODEV;
839
840 bluecard_hci_close(hdev);
841
842 clear_bit(CARD_READY, &(info->hw_state));
843
844 /* Reset card */
845 info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET;
846 outb(info->ctrl_reg, iobase + REG_CONTROL);
847
848 /* Turn FPGA off */
849 outb(0x80, iobase + 0x30);
850
851 if (hci_unregister_dev(hdev) < 0)
852 BT_ERR("Can't unregister HCI device %s", hdev->name);
853
854 hci_free_dev(hdev);
855
856 return 0;
857 }
858
859 static int bluecard_attach(struct pcmcia_device *p_dev)
860 {
861 bluecard_info_t *info;
862 dev_link_t *link;
863
864 /* Create new info device */
865 info = kzalloc(sizeof(*info), GFP_KERNEL);
866 if (!info)
867 return -ENOMEM;
868
869 link = &info->link;
870 link->priv = info;
871
872 link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
873 link->io.NumPorts1 = 8;
874 link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
875 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
876
877 link->irq.Handler = bluecard_interrupt;
878 link->irq.Instance = info;
879
880 link->conf.Attributes = CONF_ENABLE_IRQ;
881 link->conf.Vcc = 50;
882 link->conf.IntType = INT_MEMORY_AND_IO;
883
884 link->handle = p_dev;
885 p_dev->instance = link;
886
887 link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
888 bluecard_config(link);
889
890 return 0;
891 }
892
893
894 static void bluecard_detach(struct pcmcia_device *p_dev)
895 {
896 dev_link_t *link = dev_to_instance(p_dev);
897 bluecard_info_t *info = link->priv;
898
899 if (link->state & DEV_CONFIG)
900 bluecard_release(link);
901
902 kfree(info);
903 }
904
905
906 static int first_tuple(client_handle_t handle, tuple_t *tuple, cisparse_t *parse)
907 {
908 int i;
909
910 i = pcmcia_get_first_tuple(handle, tuple);
911 if (i != CS_SUCCESS)
912 return CS_NO_MORE_ITEMS;
913
914 i = pcmcia_get_tuple_data(handle, tuple);
915 if (i != CS_SUCCESS)
916 return i;
917
918 return pcmcia_parse_tuple(handle, tuple, parse);
919 }
920
921 static void bluecard_config(dev_link_t *link)
922 {
923 client_handle_t handle = link->handle;
924 bluecard_info_t *info = link->priv;
925 tuple_t tuple;
926 u_short buf[256];
927 cisparse_t parse;
928 config_info_t config;
929 int i, n, last_ret, last_fn;
930
931 tuple.TupleData = (cisdata_t *)buf;
932 tuple.TupleOffset = 0;
933 tuple.TupleDataMax = 255;
934 tuple.Attributes = 0;
935
936 /* Get configuration register information */
937 tuple.DesiredTuple = CISTPL_CONFIG;
938 last_ret = first_tuple(handle, &tuple, &parse);
939 if (last_ret != CS_SUCCESS) {
940 last_fn = ParseTuple;
941 goto cs_failed;
942 }
943 link->conf.ConfigBase = parse.config.base;
944 link->conf.Present = parse.config.rmask[0];
945
946 /* Configure card */
947 link->state |= DEV_CONFIG;
948 i = pcmcia_get_configuration_info(handle, &config);
949 link->conf.Vcc = config.Vcc;
950
951 link->conf.ConfigIndex = 0x20;
952 link->io.NumPorts1 = 64;
953 link->io.IOAddrLines = 6;
954
955 for (n = 0; n < 0x400; n += 0x40) {
956 link->io.BasePort1 = n ^ 0x300;
957 i = pcmcia_request_io(link->handle, &link->io);
958 if (i == CS_SUCCESS)
959 break;
960 }
961
962 if (i != CS_SUCCESS) {
963 cs_error(link->handle, RequestIO, i);
964 goto failed;
965 }
966
967 i = pcmcia_request_irq(link->handle, &link->irq);
968 if (i != CS_SUCCESS) {
969 cs_error(link->handle, RequestIRQ, i);
970 link->irq.AssignedIRQ = 0;
971 }
972
973 i = pcmcia_request_configuration(link->handle, &link->conf);
974 if (i != CS_SUCCESS) {
975 cs_error(link->handle, RequestConfiguration, i);
976 goto failed;
977 }
978
979 if (bluecard_open(info) != 0)
980 goto failed;
981
982 strcpy(info->node.dev_name, info->hdev->name);
983 link->dev = &info->node;
984 link->state &= ~DEV_CONFIG_PENDING;
985
986 return;
987
988 cs_failed:
989 cs_error(link->handle, last_fn, last_ret);
990
991 failed:
992 bluecard_release(link);
993 }
994
995
996 static void bluecard_release(dev_link_t *link)
997 {
998 bluecard_info_t *info = link->priv;
999
1000 if (link->state & DEV_PRESENT)
1001 bluecard_close(info);
1002
1003 del_timer(&(info->timer));
1004
1005 link->dev = NULL;
1006
1007 pcmcia_release_configuration(link->handle);
1008 pcmcia_release_io(link->handle, &link->io);
1009 pcmcia_release_irq(link->handle, &link->irq);
1010
1011 link->state &= ~DEV_CONFIG;
1012 }
1013
1014 static int bluecard_suspend(struct pcmcia_device *dev)
1015 {
1016 dev_link_t *link = dev_to_instance(dev);
1017
1018 link->state |= DEV_SUSPEND;
1019 if (link->state & DEV_CONFIG)
1020 pcmcia_release_configuration(link->handle);
1021
1022 return 0;
1023 }
1024
1025 static int bluecard_resume(struct pcmcia_device *dev)
1026 {
1027 dev_link_t *link = dev_to_instance(dev);
1028
1029 link->state &= ~DEV_SUSPEND;
1030 if (DEV_OK(link))
1031 pcmcia_request_configuration(link->handle, &link->conf);
1032
1033 return 0;
1034 }
1035
1036 static struct pcmcia_device_id bluecard_ids[] = {
1037 PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e),
1038 PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c),
1039 PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab),
1040 PCMCIA_DEVICE_NULL
1041 };
1042 MODULE_DEVICE_TABLE(pcmcia, bluecard_ids);
1043
1044 static struct pcmcia_driver bluecard_driver = {
1045 .owner = THIS_MODULE,
1046 .drv = {
1047 .name = "bluecard_cs",
1048 },
1049 .probe = bluecard_attach,
1050 .remove = bluecard_detach,
1051 .id_table = bluecard_ids,
1052 .suspend = bluecard_suspend,
1053 .resume = bluecard_resume,
1054 };
1055
1056 static int __init init_bluecard_cs(void)
1057 {
1058 return pcmcia_register_driver(&bluecard_driver);
1059 }
1060
1061
1062 static void __exit exit_bluecard_cs(void)
1063 {
1064 pcmcia_unregister_driver(&bluecard_driver);
1065 }
1066
1067 module_init(init_bluecard_cs);
1068 module_exit(exit_bluecard_cs);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree