Commit | Line | Data |
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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 | ||
55 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); | |
56 | MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)"); | |
57 | MODULE_LICENSE("GPL"); | |
58 | ||
59 | ||
60 | ||
61 | /* ======================== Local structures ======================== */ | |
62 | ||
63 | ||
d664cd98 | 64 | struct 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 | 84 | static int bluecard_config(struct pcmcia_device *link); |
fba395ee | 85 | static void bluecard_release(struct pcmcia_device *link); |
1da177e4 | 86 | |
cc3b4866 | 87 | static 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 | |
96 | #define CARD_HAS_PCCARD_ID 4 | |
97 | #define CARD_HAS_POWER_LED 5 | |
98 | #define CARD_HAS_ACTIVITY_LED 6 | |
99 | ||
100 | /* Transmit states */ | |
101 | #define XMIT_SENDING 1 | |
102 | #define XMIT_WAKEUP 2 | |
103 | #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ | |
104 | #define XMIT_BUF_ONE_READY 6 | |
105 | #define XMIT_BUF_TWO_READY 7 | |
106 | #define XMIT_SENDING_READY 8 | |
107 | ||
108 | /* Receiver states */ | |
109 | #define RECV_WAIT_PACKET_TYPE 0 | |
110 | #define RECV_WAIT_EVENT_HEADER 1 | |
111 | #define RECV_WAIT_ACL_HEADER 2 | |
112 | #define RECV_WAIT_SCO_HEADER 3 | |
113 | #define RECV_WAIT_DATA 4 | |
114 | ||
115 | /* Special packet types */ | |
116 | #define PKT_BAUD_RATE_57600 0x80 | |
117 | #define PKT_BAUD_RATE_115200 0x81 | |
118 | #define PKT_BAUD_RATE_230400 0x82 | |
119 | #define PKT_BAUD_RATE_460800 0x83 | |
120 | ||
121 | ||
122 | /* These are the register offsets */ | |
123 | #define REG_COMMAND 0x20 | |
124 | #define REG_INTERRUPT 0x21 | |
125 | #define REG_CONTROL 0x22 | |
126 | #define REG_RX_CONTROL 0x24 | |
127 | #define REG_CARD_RESET 0x30 | |
128 | #define REG_LED_CTRL 0x30 | |
129 | ||
130 | /* REG_COMMAND */ | |
131 | #define REG_COMMAND_TX_BUF_ONE 0x01 | |
132 | #define REG_COMMAND_TX_BUF_TWO 0x02 | |
133 | #define REG_COMMAND_RX_BUF_ONE 0x04 | |
134 | #define REG_COMMAND_RX_BUF_TWO 0x08 | |
135 | #define REG_COMMAND_RX_WIN_ONE 0x00 | |
136 | #define REG_COMMAND_RX_WIN_TWO 0x10 | |
137 | ||
138 | /* REG_CONTROL */ | |
139 | #define REG_CONTROL_BAUD_RATE_57600 0x00 | |
140 | #define REG_CONTROL_BAUD_RATE_115200 0x01 | |
141 | #define REG_CONTROL_BAUD_RATE_230400 0x02 | |
142 | #define REG_CONTROL_BAUD_RATE_460800 0x03 | |
143 | #define REG_CONTROL_RTS 0x04 | |
144 | #define REG_CONTROL_BT_ON 0x08 | |
145 | #define REG_CONTROL_BT_RESET 0x10 | |
146 | #define REG_CONTROL_BT_RES_PU 0x20 | |
147 | #define REG_CONTROL_INTERRUPT 0x40 | |
148 | #define REG_CONTROL_CARD_RESET 0x80 | |
149 | ||
150 | /* REG_RX_CONTROL */ | |
151 | #define RTS_LEVEL_SHIFT_BITS 0x02 | |
152 | ||
153 | ||
154 | ||
155 | /* ======================== LED handling routines ======================== */ | |
156 | ||
157 | ||
158 | static void bluecard_activity_led_timeout(u_long arg) | |
159 | { | |
d664cd98 | 160 | struct bluecard_info *info = (struct bluecard_info *)arg; |
9a017a91 | 161 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
162 | |
163 | if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
164 | return; | |
165 | ||
166 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { | |
167 | /* Disable activity LED */ | |
168 | outb(0x08 | 0x20, iobase + 0x30); | |
169 | } else { | |
170 | /* Disable power LED */ | |
171 | outb(0x00, iobase + 0x30); | |
172 | } | |
173 | } | |
174 | ||
175 | ||
d664cd98 | 176 | static void bluecard_enable_activity_led(struct bluecard_info *info) |
1da177e4 | 177 | { |
9a017a91 | 178 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
179 | |
180 | if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
181 | return; | |
182 | ||
183 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { | |
184 | /* Enable activity LED */ | |
185 | outb(0x10 | 0x40, iobase + 0x30); | |
186 | ||
187 | /* Stop the LED after HZ/4 */ | |
188 | mod_timer(&(info->timer), jiffies + HZ / 4); | |
189 | } else { | |
190 | /* Enable power LED */ | |
191 | outb(0x08 | 0x20, iobase + 0x30); | |
192 | ||
193 | /* Stop the LED after HZ/2 */ | |
194 | mod_timer(&(info->timer), jiffies + HZ / 2); | |
195 | } | |
196 | } | |
197 | ||
198 | ||
199 | ||
200 | /* ======================== Interrupt handling ======================== */ | |
201 | ||
202 | ||
203 | static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) | |
204 | { | |
205 | int i, actual; | |
206 | ||
207 | actual = (len > 15) ? 15 : len; | |
208 | ||
209 | outb_p(actual, iobase + offset); | |
210 | ||
211 | for (i = 0; i < actual; i++) | |
212 | outb_p(buf[i], iobase + offset + i + 1); | |
213 | ||
214 | return actual; | |
215 | } | |
216 | ||
217 | ||
d664cd98 | 218 | static void bluecard_write_wakeup(struct bluecard_info *info) |
1da177e4 LT |
219 | { |
220 | if (!info) { | |
221 | BT_ERR("Unknown device"); | |
222 | return; | |
223 | } | |
224 | ||
225 | if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
226 | return; | |
227 | ||
228 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { | |
229 | set_bit(XMIT_WAKEUP, &(info->tx_state)); | |
230 | return; | |
231 | } | |
232 | ||
233 | do { | |
fc5fef61 GP |
234 | unsigned int iobase = info->p_dev->resource[0]->start; |
235 | unsigned int offset; | |
236 | unsigned char command; | |
237 | unsigned long ready_bit; | |
1da177e4 | 238 | register struct sk_buff *skb; |
fc5fef61 | 239 | int len; |
1da177e4 LT |
240 | |
241 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); | |
242 | ||
e2d40963 | 243 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
244 | return; |
245 | ||
246 | if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { | |
247 | if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) | |
248 | break; | |
249 | offset = 0x10; | |
250 | command = REG_COMMAND_TX_BUF_TWO; | |
251 | ready_bit = XMIT_BUF_TWO_READY; | |
252 | } else { | |
253 | if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) | |
254 | break; | |
255 | offset = 0x00; | |
256 | command = REG_COMMAND_TX_BUF_ONE; | |
257 | ready_bit = XMIT_BUF_ONE_READY; | |
258 | } | |
259 | ||
a08b15e6 VI |
260 | skb = skb_dequeue(&(info->txq)); |
261 | if (!skb) | |
1da177e4 LT |
262 | break; |
263 | ||
0d48d939 | 264 | if (bt_cb(skb)->pkt_type & 0x80) { |
1da177e4 LT |
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 | ||
0d48d939 | 282 | if (bt_cb(skb)->pkt_type & 0x80) { |
7259f0d0 | 283 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
1da177e4 LT |
284 | DEFINE_WAIT(wait); |
285 | ||
286 | unsigned char baud_reg; | |
287 | ||
0d48d939 | 288 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
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 | ||
d664cd98 HS |
371 | static void bluecard_receive(struct bluecard_info *info, |
372 | unsigned int offset) | |
1da177e4 LT |
373 | { |
374 | unsigned int iobase; | |
375 | unsigned char buf[31]; | |
376 | int i, len; | |
377 | ||
378 | if (!info) { | |
379 | BT_ERR("Unknown device"); | |
380 | return; | |
381 | } | |
382 | ||
9a017a91 | 383 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
384 | |
385 | if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
386 | bluecard_enable_activity_led(info); | |
387 | ||
388 | len = bluecard_read(iobase, offset, buf, sizeof(buf)); | |
389 | ||
390 | for (i = 0; i < len; i++) { | |
391 | ||
392 | /* Allocate packet */ | |
393 | if (info->rx_skb == NULL) { | |
394 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
395 | info->rx_count = 0; | |
a08b15e6 VI |
396 | info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
397 | if (!info->rx_skb) { | |
1da177e4 LT |
398 | BT_ERR("Can't allocate mem for new packet"); |
399 | return; | |
400 | } | |
401 | } | |
402 | ||
403 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
404 | ||
0d48d939 | 405 | bt_cb(info->rx_skb)->pkt_type = buf[i]; |
1da177e4 | 406 | |
0d48d939 | 407 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
408 | |
409 | case 0x00: | |
410 | /* init packet */ | |
411 | if (offset != 0x00) { | |
412 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
413 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
414 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
415 | bluecard_write_wakeup(info); | |
416 | } | |
417 | ||
418 | kfree_skb(info->rx_skb); | |
419 | info->rx_skb = NULL; | |
420 | break; | |
421 | ||
422 | case HCI_EVENT_PKT: | |
423 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
424 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
425 | break; | |
426 | ||
427 | case HCI_ACLDATA_PKT: | |
428 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
429 | info->rx_count = HCI_ACL_HDR_SIZE; | |
430 | break; | |
431 | ||
432 | case HCI_SCODATA_PKT: | |
433 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
434 | info->rx_count = HCI_SCO_HDR_SIZE; | |
435 | break; | |
436 | ||
437 | default: | |
438 | /* unknown packet */ | |
0d48d939 | 439 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
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 | ||
450 | *skb_put(info->rx_skb, 1) = buf[i]; | |
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 | 499 | static 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 | ||
564 | static 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; | |
0d48d939 | 581 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800; |
1da177e4 LT |
582 | break; |
583 | case 230400: | |
584 | cmd[4] = 0x01; | |
0d48d939 | 585 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400; |
1da177e4 LT |
586 | break; |
587 | case 115200: | |
588 | cmd[4] = 0x02; | |
0d48d939 | 589 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200; |
1da177e4 LT |
590 | break; |
591 | case 57600: | |
592 | /* Fall through... */ | |
593 | default: | |
594 | cmd[4] = 0x03; | |
0d48d939 | 595 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600; |
1da177e4 LT |
596 | break; |
597 | } | |
598 | ||
599 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
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 | ||
613 | static 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 | ||
624 | static int bluecard_hci_open(struct hci_dev *hdev) | |
625 | { | |
d664cd98 | 626 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 LT |
627 | |
628 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
629 | bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); | |
630 | ||
631 | if (test_and_set_bit(HCI_RUNNING, &(hdev->flags))) | |
632 | return 0; | |
633 | ||
634 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { | |
74ad8fda AE |
635 | unsigned int iobase = info->p_dev->resource[0]->start; |
636 | ||
1da177e4 LT |
637 | /* Enable LED */ |
638 | outb(0x08 | 0x20, iobase + 0x30); | |
639 | } | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
644 | ||
645 | static int bluecard_hci_close(struct hci_dev *hdev) | |
646 | { | |
d664cd98 | 647 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 LT |
648 | |
649 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
650 | return 0; | |
651 | ||
652 | bluecard_hci_flush(hdev); | |
653 | ||
654 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { | |
74ad8fda AE |
655 | unsigned int iobase = info->p_dev->resource[0]->start; |
656 | ||
1da177e4 LT |
657 | /* Disable LED */ |
658 | outb(0x00, iobase + 0x30); | |
659 | } | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
664 | ||
7bd8f09f | 665 | static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 | 666 | { |
d664cd98 | 667 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 | 668 | |
0d48d939 | 669 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
670 | case HCI_COMMAND_PKT: |
671 | hdev->stat.cmd_tx++; | |
672 | break; | |
673 | case HCI_ACLDATA_PKT: | |
674 | hdev->stat.acl_tx++; | |
675 | break; | |
676 | case HCI_SCODATA_PKT: | |
677 | hdev->stat.sco_tx++; | |
678 | break; | |
ce9b0048 | 679 | } |
1da177e4 LT |
680 | |
681 | /* Prepend skb with frame type */ | |
0d48d939 | 682 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
683 | skb_queue_tail(&(info->txq), skb); |
684 | ||
685 | bluecard_write_wakeup(info); | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
690 | ||
1da177e4 LT |
691 | |
692 | /* ======================== Card services HCI interaction ======================== */ | |
693 | ||
694 | ||
d664cd98 | 695 | static int bluecard_open(struct bluecard_info *info) |
1da177e4 | 696 | { |
9a017a91 | 697 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
698 | struct hci_dev *hdev; |
699 | unsigned char id; | |
700 | ||
701 | spin_lock_init(&(info->lock)); | |
702 | ||
703 | init_timer(&(info->timer)); | |
704 | info->timer.function = &bluecard_activity_led_timeout; | |
705 | info->timer.data = (u_long)info; | |
706 | ||
707 | skb_queue_head_init(&(info->txq)); | |
708 | ||
709 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
710 | info->rx_count = 0; | |
711 | info->rx_skb = NULL; | |
712 | ||
713 | /* Initialize HCI device */ | |
714 | hdev = hci_alloc_dev(); | |
715 | if (!hdev) { | |
716 | BT_ERR("Can't allocate HCI device"); | |
717 | return -ENOMEM; | |
718 | } | |
719 | ||
720 | info->hdev = hdev; | |
721 | ||
c13854ce | 722 | hdev->bus = HCI_PCCARD; |
155961e8 | 723 | hci_set_drvdata(hdev, info); |
27d35284 | 724 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 | 725 | |
87d82ee2 MH |
726 | hdev->open = bluecard_hci_open; |
727 | hdev->close = bluecard_hci_close; | |
728 | hdev->flush = bluecard_hci_flush; | |
729 | hdev->send = bluecard_hci_send_frame; | |
1da177e4 | 730 | |
1da177e4 LT |
731 | id = inb(iobase + 0x30); |
732 | ||
733 | if ((id & 0x0f) == 0x02) | |
734 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); | |
735 | ||
736 | if (id & 0x10) | |
737 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); | |
738 | ||
739 | if (id & 0x20) | |
740 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); | |
741 | ||
742 | /* Reset card */ | |
743 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
744 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
745 | ||
746 | /* Turn FPGA off */ | |
747 | outb(0x80, iobase + 0x30); | |
748 | ||
749 | /* Wait some time */ | |
750 | msleep(10); | |
751 | ||
752 | /* Turn FPGA on */ | |
753 | outb(0x00, iobase + 0x30); | |
754 | ||
755 | /* Activate card */ | |
756 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; | |
757 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
758 | ||
759 | /* Enable interrupt */ | |
760 | outb(0xff, iobase + REG_INTERRUPT); | |
761 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
762 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
763 | ||
764 | if ((id & 0x0f) == 0x03) { | |
765 | /* Disable RTS */ | |
766 | info->ctrl_reg |= REG_CONTROL_RTS; | |
767 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
768 | ||
769 | /* Set baud rate */ | |
770 | info->ctrl_reg |= 0x03; | |
771 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
772 | ||
773 | /* Enable RTS */ | |
774 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
775 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
776 | ||
777 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
778 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
779 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
780 | } | |
781 | ||
782 | /* Start the RX buffers */ | |
783 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
784 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
785 | ||
786 | /* Signal that the hardware is ready */ | |
787 | set_bit(CARD_READY, &(info->hw_state)); | |
788 | ||
789 | /* Drop TX queue */ | |
790 | skb_queue_purge(&(info->txq)); | |
791 | ||
792 | /* Control the point at which RTS is enabled */ | |
793 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); | |
794 | ||
795 | /* Timeout before it is safe to send the first HCI packet */ | |
796 | msleep(1250); | |
797 | ||
798 | /* Register HCI device */ | |
799 | if (hci_register_dev(hdev) < 0) { | |
800 | BT_ERR("Can't register HCI device"); | |
801 | info->hdev = NULL; | |
802 | hci_free_dev(hdev); | |
803 | return -ENODEV; | |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
809 | ||
d664cd98 | 810 | static int bluecard_close(struct bluecard_info *info) |
1da177e4 | 811 | { |
9a017a91 | 812 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
813 | struct hci_dev *hdev = info->hdev; |
814 | ||
815 | if (!hdev) | |
816 | return -ENODEV; | |
817 | ||
818 | bluecard_hci_close(hdev); | |
819 | ||
820 | clear_bit(CARD_READY, &(info->hw_state)); | |
821 | ||
822 | /* Reset card */ | |
823 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
824 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
825 | ||
826 | /* Turn FPGA off */ | |
827 | outb(0x80, iobase + 0x30); | |
828 | ||
13ea4015 | 829 | hci_unregister_dev(hdev); |
1da177e4 LT |
830 | hci_free_dev(hdev); |
831 | ||
832 | return 0; | |
833 | } | |
834 | ||
15b99ac1 | 835 | static int bluecard_probe(struct pcmcia_device *link) |
1da177e4 | 836 | { |
d664cd98 | 837 | struct bluecard_info *info; |
1da177e4 LT |
838 | |
839 | /* Create new info device */ | |
1a31c602 | 840 | info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); |
1da177e4 | 841 | if (!info) |
f8cfa618 | 842 | return -ENOMEM; |
1da177e4 | 843 | |
fba395ee | 844 | info->p_dev = link; |
1da177e4 LT |
845 | link->priv = info; |
846 | ||
1ac71e5a | 847 | link->config_flags |= CONF_ENABLE_IRQ; |
1da177e4 | 848 | |
15b99ac1 | 849 | return bluecard_config(link); |
1da177e4 LT |
850 | } |
851 | ||
852 | ||
fba395ee | 853 | static void bluecard_detach(struct pcmcia_device *link) |
1da177e4 | 854 | { |
e2d40963 | 855 | bluecard_release(link); |
1da177e4 LT |
856 | } |
857 | ||
858 | ||
15b99ac1 | 859 | static int bluecard_config(struct pcmcia_device *link) |
1da177e4 | 860 | { |
d664cd98 | 861 | struct bluecard_info *info = link->priv; |
af2b3b50 | 862 | int i, n; |
1da177e4 | 863 | |
7feabb64 | 864 | link->config_index = 0x20; |
90abdc3b DB |
865 | |
866 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
867 | link->resource[0]->end = 64; | |
868 | link->io_lines = 6; | |
1da177e4 LT |
869 | |
870 | for (n = 0; n < 0x400; n += 0x40) { | |
90abdc3b DB |
871 | link->resource[0]->start = n ^ 0x300; |
872 | i = pcmcia_request_io(link); | |
4c89e88b | 873 | if (i == 0) |
1da177e4 LT |
874 | break; |
875 | } | |
876 | ||
9ac3e58c | 877 | if (i != 0) |
1da177e4 | 878 | goto failed; |
1da177e4 | 879 | |
eb14120f | 880 | i = pcmcia_request_irq(link, bluecard_interrupt); |
9ac3e58c | 881 | if (i != 0) |
eb14120f | 882 | goto failed; |
1da177e4 | 883 | |
1ac71e5a | 884 | i = pcmcia_enable_device(link); |
9ac3e58c | 885 | if (i != 0) |
1da177e4 | 886 | goto failed; |
1da177e4 LT |
887 | |
888 | if (bluecard_open(info) != 0) | |
889 | goto failed; | |
890 | ||
15b99ac1 | 891 | return 0; |
1da177e4 | 892 | |
1da177e4 LT |
893 | failed: |
894 | bluecard_release(link); | |
15b99ac1 | 895 | return -ENODEV; |
1da177e4 LT |
896 | } |
897 | ||
898 | ||
fba395ee | 899 | static void bluecard_release(struct pcmcia_device *link) |
1da177e4 | 900 | { |
d664cd98 | 901 | struct bluecard_info *info = link->priv; |
1da177e4 | 902 | |
e2d40963 | 903 | bluecard_close(info); |
1da177e4 | 904 | |
d8ff9cdf | 905 | del_timer_sync(&(info->timer)); |
1da177e4 | 906 | |
fba395ee | 907 | pcmcia_disable_device(link); |
1da177e4 LT |
908 | } |
909 | ||
25f8f54f | 910 | static const struct pcmcia_device_id bluecard_ids[] = { |
7f70cb6d DB |
911 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), |
912 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), | |
913 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), | |
914 | PCMCIA_DEVICE_NULL | |
915 | }; | |
916 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); | |
917 | ||
1da177e4 LT |
918 | static struct pcmcia_driver bluecard_driver = { |
919 | .owner = THIS_MODULE, | |
2e9b981a | 920 | .name = "bluecard_cs", |
15b99ac1 | 921 | .probe = bluecard_probe, |
cc3b4866 | 922 | .remove = bluecard_detach, |
7f70cb6d | 923 | .id_table = bluecard_ids, |
1da177e4 | 924 | }; |
e0c005f4 | 925 | module_pcmcia_driver(bluecard_driver); |