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> | |
40 | #include <asm/io.h> | |
41 | ||
1da177e4 LT |
42 | #include <pcmcia/cs_types.h> |
43 | #include <pcmcia/cs.h> | |
44 | #include <pcmcia/cistpl.h> | |
45 | #include <pcmcia/ciscode.h> | |
46 | #include <pcmcia/ds.h> | |
47 | #include <pcmcia/cisreg.h> | |
48 | ||
49 | #include <net/bluetooth/bluetooth.h> | |
50 | #include <net/bluetooth/hci_core.h> | |
51 | ||
52 | ||
53 | ||
54 | /* ======================== Module parameters ======================== */ | |
55 | ||
56 | ||
57 | MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>"); | |
58 | MODULE_DESCRIPTION("Bluetooth driver for the Anycom BlueCard (LSE039/LSE041)"); | |
59 | MODULE_LICENSE("GPL"); | |
60 | ||
61 | ||
62 | ||
63 | /* ======================== Local structures ======================== */ | |
64 | ||
65 | ||
66 | typedef struct bluecard_info_t { | |
fd238232 | 67 | struct pcmcia_device *p_dev; |
1da177e4 LT |
68 | |
69 | struct hci_dev *hdev; | |
70 | ||
71 | spinlock_t lock; /* For serializing operations */ | |
72 | struct timer_list timer; /* For LED control */ | |
73 | ||
74 | struct sk_buff_head txq; | |
75 | unsigned long tx_state; | |
76 | ||
77 | unsigned long rx_state; | |
78 | unsigned long rx_count; | |
79 | struct sk_buff *rx_skb; | |
80 | ||
81 | unsigned char ctrl_reg; | |
82 | unsigned long hw_state; /* Status of the hardware and LED control */ | |
83 | } bluecard_info_t; | |
84 | ||
85 | ||
15b99ac1 | 86 | static int bluecard_config(struct pcmcia_device *link); |
fba395ee | 87 | static void bluecard_release(struct pcmcia_device *link); |
1da177e4 | 88 | |
cc3b4866 | 89 | static void bluecard_detach(struct pcmcia_device *p_dev); |
1da177e4 | 90 | |
1da177e4 LT |
91 | |
92 | /* Default baud rate: 57600, 115200, 230400 or 460800 */ | |
93 | #define DEFAULT_BAUD_RATE 230400 | |
94 | ||
95 | ||
96 | /* Hardware states */ | |
97 | #define CARD_READY 1 | |
98 | #define CARD_HAS_PCCARD_ID 4 | |
99 | #define CARD_HAS_POWER_LED 5 | |
100 | #define CARD_HAS_ACTIVITY_LED 6 | |
101 | ||
102 | /* Transmit states */ | |
103 | #define XMIT_SENDING 1 | |
104 | #define XMIT_WAKEUP 2 | |
105 | #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ | |
106 | #define XMIT_BUF_ONE_READY 6 | |
107 | #define XMIT_BUF_TWO_READY 7 | |
108 | #define XMIT_SENDING_READY 8 | |
109 | ||
110 | /* Receiver states */ | |
111 | #define RECV_WAIT_PACKET_TYPE 0 | |
112 | #define RECV_WAIT_EVENT_HEADER 1 | |
113 | #define RECV_WAIT_ACL_HEADER 2 | |
114 | #define RECV_WAIT_SCO_HEADER 3 | |
115 | #define RECV_WAIT_DATA 4 | |
116 | ||
117 | /* Special packet types */ | |
118 | #define PKT_BAUD_RATE_57600 0x80 | |
119 | #define PKT_BAUD_RATE_115200 0x81 | |
120 | #define PKT_BAUD_RATE_230400 0x82 | |
121 | #define PKT_BAUD_RATE_460800 0x83 | |
122 | ||
123 | ||
124 | /* These are the register offsets */ | |
125 | #define REG_COMMAND 0x20 | |
126 | #define REG_INTERRUPT 0x21 | |
127 | #define REG_CONTROL 0x22 | |
128 | #define REG_RX_CONTROL 0x24 | |
129 | #define REG_CARD_RESET 0x30 | |
130 | #define REG_LED_CTRL 0x30 | |
131 | ||
132 | /* REG_COMMAND */ | |
133 | #define REG_COMMAND_TX_BUF_ONE 0x01 | |
134 | #define REG_COMMAND_TX_BUF_TWO 0x02 | |
135 | #define REG_COMMAND_RX_BUF_ONE 0x04 | |
136 | #define REG_COMMAND_RX_BUF_TWO 0x08 | |
137 | #define REG_COMMAND_RX_WIN_ONE 0x00 | |
138 | #define REG_COMMAND_RX_WIN_TWO 0x10 | |
139 | ||
140 | /* REG_CONTROL */ | |
141 | #define REG_CONTROL_BAUD_RATE_57600 0x00 | |
142 | #define REG_CONTROL_BAUD_RATE_115200 0x01 | |
143 | #define REG_CONTROL_BAUD_RATE_230400 0x02 | |
144 | #define REG_CONTROL_BAUD_RATE_460800 0x03 | |
145 | #define REG_CONTROL_RTS 0x04 | |
146 | #define REG_CONTROL_BT_ON 0x08 | |
147 | #define REG_CONTROL_BT_RESET 0x10 | |
148 | #define REG_CONTROL_BT_RES_PU 0x20 | |
149 | #define REG_CONTROL_INTERRUPT 0x40 | |
150 | #define REG_CONTROL_CARD_RESET 0x80 | |
151 | ||
152 | /* REG_RX_CONTROL */ | |
153 | #define RTS_LEVEL_SHIFT_BITS 0x02 | |
154 | ||
155 | ||
156 | ||
157 | /* ======================== LED handling routines ======================== */ | |
158 | ||
159 | ||
160 | static void bluecard_activity_led_timeout(u_long arg) | |
161 | { | |
162 | bluecard_info_t *info = (bluecard_info_t *)arg; | |
fd238232 | 163 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
164 | |
165 | if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
166 | return; | |
167 | ||
168 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { | |
169 | /* Disable activity LED */ | |
170 | outb(0x08 | 0x20, iobase + 0x30); | |
171 | } else { | |
172 | /* Disable power LED */ | |
173 | outb(0x00, iobase + 0x30); | |
174 | } | |
175 | } | |
176 | ||
177 | ||
178 | static void bluecard_enable_activity_led(bluecard_info_t *info) | |
179 | { | |
fd238232 | 180 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
181 | |
182 | if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
183 | return; | |
184 | ||
185 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { | |
186 | /* Enable activity LED */ | |
187 | outb(0x10 | 0x40, iobase + 0x30); | |
188 | ||
189 | /* Stop the LED after HZ/4 */ | |
190 | mod_timer(&(info->timer), jiffies + HZ / 4); | |
191 | } else { | |
192 | /* Enable power LED */ | |
193 | outb(0x08 | 0x20, iobase + 0x30); | |
194 | ||
195 | /* Stop the LED after HZ/2 */ | |
196 | mod_timer(&(info->timer), jiffies + HZ / 2); | |
197 | } | |
198 | } | |
199 | ||
200 | ||
201 | ||
202 | /* ======================== Interrupt handling ======================== */ | |
203 | ||
204 | ||
205 | static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) | |
206 | { | |
207 | int i, actual; | |
208 | ||
209 | actual = (len > 15) ? 15 : len; | |
210 | ||
211 | outb_p(actual, iobase + offset); | |
212 | ||
213 | for (i = 0; i < actual; i++) | |
214 | outb_p(buf[i], iobase + offset + i + 1); | |
215 | ||
216 | return actual; | |
217 | } | |
218 | ||
219 | ||
220 | static void bluecard_write_wakeup(bluecard_info_t *info) | |
221 | { | |
222 | if (!info) { | |
223 | BT_ERR("Unknown device"); | |
224 | return; | |
225 | } | |
226 | ||
227 | if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
228 | return; | |
229 | ||
230 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { | |
231 | set_bit(XMIT_WAKEUP, &(info->tx_state)); | |
232 | return; | |
233 | } | |
234 | ||
235 | do { | |
fd238232 | 236 | register unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
237 | register unsigned int offset; |
238 | register unsigned char command; | |
239 | register unsigned long ready_bit; | |
240 | register struct sk_buff *skb; | |
241 | register int len; | |
242 | ||
243 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); | |
244 | ||
e2d40963 | 245 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
246 | return; |
247 | ||
248 | if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { | |
249 | if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) | |
250 | break; | |
251 | offset = 0x10; | |
252 | command = REG_COMMAND_TX_BUF_TWO; | |
253 | ready_bit = XMIT_BUF_TWO_READY; | |
254 | } else { | |
255 | if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) | |
256 | break; | |
257 | offset = 0x00; | |
258 | command = REG_COMMAND_TX_BUF_ONE; | |
259 | ready_bit = XMIT_BUF_ONE_READY; | |
260 | } | |
261 | ||
262 | if (!(skb = skb_dequeue(&(info->txq)))) | |
263 | break; | |
264 | ||
0d48d939 | 265 | if (bt_cb(skb)->pkt_type & 0x80) { |
1da177e4 LT |
266 | /* Disable RTS */ |
267 | info->ctrl_reg |= REG_CONTROL_RTS; | |
268 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
269 | } | |
270 | ||
271 | /* Activate LED */ | |
272 | bluecard_enable_activity_led(info); | |
273 | ||
274 | /* Send frame */ | |
275 | len = bluecard_write(iobase, offset, skb->data, skb->len); | |
276 | ||
277 | /* Tell the FPGA to send the data */ | |
278 | outb_p(command, iobase + REG_COMMAND); | |
279 | ||
280 | /* Mark the buffer as dirty */ | |
281 | clear_bit(ready_bit, &(info->tx_state)); | |
282 | ||
0d48d939 | 283 | if (bt_cb(skb)->pkt_type & 0x80) { |
7259f0d0 | 284 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
1da177e4 LT |
285 | DEFINE_WAIT(wait); |
286 | ||
287 | unsigned char baud_reg; | |
288 | ||
0d48d939 | 289 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
290 | case PKT_BAUD_RATE_460800: |
291 | baud_reg = REG_CONTROL_BAUD_RATE_460800; | |
292 | break; | |
293 | case PKT_BAUD_RATE_230400: | |
294 | baud_reg = REG_CONTROL_BAUD_RATE_230400; | |
295 | break; | |
296 | case PKT_BAUD_RATE_115200: | |
297 | baud_reg = REG_CONTROL_BAUD_RATE_115200; | |
298 | break; | |
299 | case PKT_BAUD_RATE_57600: | |
300 | /* Fall through... */ | |
301 | default: | |
302 | baud_reg = REG_CONTROL_BAUD_RATE_57600; | |
303 | break; | |
304 | } | |
305 | ||
306 | /* Wait until the command reaches the baseband */ | |
307 | prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); | |
308 | schedule_timeout(HZ/10); | |
309 | finish_wait(&wq, &wait); | |
310 | ||
311 | /* Set baud on baseband */ | |
312 | info->ctrl_reg &= ~0x03; | |
313 | info->ctrl_reg |= baud_reg; | |
314 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
315 | ||
316 | /* Enable RTS */ | |
317 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
318 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
319 | ||
320 | /* Wait before the next HCI packet can be send */ | |
321 | prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); | |
322 | schedule_timeout(HZ); | |
323 | finish_wait(&wq, &wait); | |
324 | } | |
325 | ||
326 | if (len == skb->len) { | |
327 | kfree_skb(skb); | |
328 | } else { | |
329 | skb_pull(skb, len); | |
330 | skb_queue_head(&(info->txq), skb); | |
331 | } | |
332 | ||
333 | info->hdev->stat.byte_tx += len; | |
334 | ||
335 | /* Change buffer */ | |
336 | change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); | |
337 | ||
338 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); | |
339 | ||
340 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
341 | } | |
342 | ||
343 | ||
344 | static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) | |
345 | { | |
346 | int i, n, len; | |
347 | ||
348 | outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); | |
349 | ||
350 | len = inb(iobase + offset); | |
351 | n = 0; | |
352 | i = 1; | |
353 | ||
354 | while (n < len) { | |
355 | ||
356 | if (i == 16) { | |
357 | outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); | |
358 | i = 0; | |
359 | } | |
360 | ||
361 | buf[n] = inb(iobase + offset + i); | |
362 | ||
363 | n++; | |
364 | i++; | |
365 | ||
366 | } | |
367 | ||
368 | return len; | |
369 | } | |
370 | ||
371 | ||
372 | static void bluecard_receive(bluecard_info_t *info, unsigned int offset) | |
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 | ||
fd238232 | 383 | iobase = info->p_dev->io.BasePort1; |
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; | |
396 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
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 | ||
404 | info->rx_skb->dev = (void *) info->hdev; | |
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: | |
482 | hci_recv_frame(info->rx_skb); | |
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 LT |
500 | { |
501 | bluecard_info_t *info = dev_inst; | |
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 | ||
fd238232 | 512 | iobase = info->p_dev->io.BasePort1; |
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 | { | |
566 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
567 | struct sk_buff *skb; | |
568 | ||
569 | /* Ericsson baud rate command */ | |
570 | unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; | |
571 | ||
572 | if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
573 | BT_ERR("Can't allocate mem for new packet"); | |
574 | return -1; | |
575 | } | |
576 | ||
577 | switch (baud) { | |
578 | case 460800: | |
579 | cmd[4] = 0x00; | |
0d48d939 | 580 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800; |
1da177e4 LT |
581 | break; |
582 | case 230400: | |
583 | cmd[4] = 0x01; | |
0d48d939 | 584 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400; |
1da177e4 LT |
585 | break; |
586 | case 115200: | |
587 | cmd[4] = 0x02; | |
0d48d939 | 588 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200; |
1da177e4 LT |
589 | break; |
590 | case 57600: | |
591 | /* Fall through... */ | |
592 | default: | |
593 | cmd[4] = 0x03; | |
0d48d939 | 594 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600; |
1da177e4 LT |
595 | break; |
596 | } | |
597 | ||
598 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
599 | ||
600 | skb_queue_tail(&(info->txq), skb); | |
601 | ||
602 | bluecard_write_wakeup(info); | |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | ||
608 | ||
609 | /* ======================== HCI interface ======================== */ | |
610 | ||
611 | ||
612 | static int bluecard_hci_flush(struct hci_dev *hdev) | |
613 | { | |
614 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
615 | ||
616 | /* Drop TX queue */ | |
617 | skb_queue_purge(&(info->txq)); | |
618 | ||
619 | return 0; | |
620 | } | |
621 | ||
622 | ||
623 | static int bluecard_hci_open(struct hci_dev *hdev) | |
624 | { | |
625 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
fd238232 | 626 | unsigned int iobase = info->p_dev->io.BasePort1; |
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))) { | |
635 | /* Enable LED */ | |
636 | outb(0x08 | 0x20, iobase + 0x30); | |
637 | } | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
642 | ||
643 | static int bluecard_hci_close(struct hci_dev *hdev) | |
644 | { | |
645 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
fd238232 | 646 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
647 | |
648 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
649 | return 0; | |
650 | ||
651 | bluecard_hci_flush(hdev); | |
652 | ||
653 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { | |
654 | /* Disable LED */ | |
655 | outb(0x00, iobase + 0x30); | |
656 | } | |
657 | ||
658 | return 0; | |
659 | } | |
660 | ||
661 | ||
662 | static int bluecard_hci_send_frame(struct sk_buff *skb) | |
663 | { | |
664 | bluecard_info_t *info; | |
665 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
666 | ||
667 | if (!hdev) { | |
668 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
669 | return -ENODEV; | |
670 | } | |
671 | ||
672 | info = (bluecard_info_t *)(hdev->driver_data); | |
673 | ||
0d48d939 | 674 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
675 | case HCI_COMMAND_PKT: |
676 | hdev->stat.cmd_tx++; | |
677 | break; | |
678 | case HCI_ACLDATA_PKT: | |
679 | hdev->stat.acl_tx++; | |
680 | break; | |
681 | case HCI_SCODATA_PKT: | |
682 | hdev->stat.sco_tx++; | |
683 | break; | |
684 | }; | |
685 | ||
686 | /* Prepend skb with frame type */ | |
0d48d939 | 687 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
688 | skb_queue_tail(&(info->txq), skb); |
689 | ||
690 | bluecard_write_wakeup(info); | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
695 | ||
696 | static void bluecard_hci_destruct(struct hci_dev *hdev) | |
697 | { | |
698 | } | |
699 | ||
700 | ||
701 | static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
702 | { | |
703 | return -ENOIOCTLCMD; | |
704 | } | |
705 | ||
706 | ||
707 | ||
708 | /* ======================== Card services HCI interaction ======================== */ | |
709 | ||
710 | ||
711 | static int bluecard_open(bluecard_info_t *info) | |
712 | { | |
fd238232 | 713 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
714 | struct hci_dev *hdev; |
715 | unsigned char id; | |
716 | ||
717 | spin_lock_init(&(info->lock)); | |
718 | ||
719 | init_timer(&(info->timer)); | |
720 | info->timer.function = &bluecard_activity_led_timeout; | |
721 | info->timer.data = (u_long)info; | |
722 | ||
723 | skb_queue_head_init(&(info->txq)); | |
724 | ||
725 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
726 | info->rx_count = 0; | |
727 | info->rx_skb = NULL; | |
728 | ||
729 | /* Initialize HCI device */ | |
730 | hdev = hci_alloc_dev(); | |
731 | if (!hdev) { | |
732 | BT_ERR("Can't allocate HCI device"); | |
733 | return -ENOMEM; | |
734 | } | |
735 | ||
736 | info->hdev = hdev; | |
737 | ||
c13854ce | 738 | hdev->bus = HCI_PCCARD; |
1da177e4 | 739 | hdev->driver_data = info; |
27d35284 | 740 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 LT |
741 | |
742 | hdev->open = bluecard_hci_open; | |
743 | hdev->close = bluecard_hci_close; | |
744 | hdev->flush = bluecard_hci_flush; | |
745 | hdev->send = bluecard_hci_send_frame; | |
746 | hdev->destruct = bluecard_hci_destruct; | |
747 | hdev->ioctl = bluecard_hci_ioctl; | |
748 | ||
749 | hdev->owner = THIS_MODULE; | |
750 | ||
751 | id = inb(iobase + 0x30); | |
752 | ||
753 | if ((id & 0x0f) == 0x02) | |
754 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); | |
755 | ||
756 | if (id & 0x10) | |
757 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); | |
758 | ||
759 | if (id & 0x20) | |
760 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); | |
761 | ||
762 | /* Reset card */ | |
763 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
764 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
765 | ||
766 | /* Turn FPGA off */ | |
767 | outb(0x80, iobase + 0x30); | |
768 | ||
769 | /* Wait some time */ | |
770 | msleep(10); | |
771 | ||
772 | /* Turn FPGA on */ | |
773 | outb(0x00, iobase + 0x30); | |
774 | ||
775 | /* Activate card */ | |
776 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; | |
777 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
778 | ||
779 | /* Enable interrupt */ | |
780 | outb(0xff, iobase + REG_INTERRUPT); | |
781 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
782 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
783 | ||
784 | if ((id & 0x0f) == 0x03) { | |
785 | /* Disable RTS */ | |
786 | info->ctrl_reg |= REG_CONTROL_RTS; | |
787 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
788 | ||
789 | /* Set baud rate */ | |
790 | info->ctrl_reg |= 0x03; | |
791 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
792 | ||
793 | /* Enable RTS */ | |
794 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
795 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
796 | ||
797 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
798 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
799 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
800 | } | |
801 | ||
802 | /* Start the RX buffers */ | |
803 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
804 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
805 | ||
806 | /* Signal that the hardware is ready */ | |
807 | set_bit(CARD_READY, &(info->hw_state)); | |
808 | ||
809 | /* Drop TX queue */ | |
810 | skb_queue_purge(&(info->txq)); | |
811 | ||
812 | /* Control the point at which RTS is enabled */ | |
813 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); | |
814 | ||
815 | /* Timeout before it is safe to send the first HCI packet */ | |
816 | msleep(1250); | |
817 | ||
818 | /* Register HCI device */ | |
819 | if (hci_register_dev(hdev) < 0) { | |
820 | BT_ERR("Can't register HCI device"); | |
821 | info->hdev = NULL; | |
822 | hci_free_dev(hdev); | |
823 | return -ENODEV; | |
824 | } | |
825 | ||
826 | return 0; | |
827 | } | |
828 | ||
829 | ||
830 | static int bluecard_close(bluecard_info_t *info) | |
831 | { | |
fd238232 | 832 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
833 | struct hci_dev *hdev = info->hdev; |
834 | ||
835 | if (!hdev) | |
836 | return -ENODEV; | |
837 | ||
838 | bluecard_hci_close(hdev); | |
839 | ||
840 | clear_bit(CARD_READY, &(info->hw_state)); | |
841 | ||
842 | /* Reset card */ | |
843 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
844 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
845 | ||
846 | /* Turn FPGA off */ | |
847 | outb(0x80, iobase + 0x30); | |
848 | ||
849 | if (hci_unregister_dev(hdev) < 0) | |
850 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
851 | ||
852 | hci_free_dev(hdev); | |
853 | ||
854 | return 0; | |
855 | } | |
856 | ||
15b99ac1 | 857 | static int bluecard_probe(struct pcmcia_device *link) |
1da177e4 LT |
858 | { |
859 | bluecard_info_t *info; | |
1da177e4 LT |
860 | |
861 | /* Create new info device */ | |
089b1dbb | 862 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 | 863 | if (!info) |
f8cfa618 | 864 | return -ENOMEM; |
1da177e4 | 865 | |
fba395ee | 866 | info->p_dev = link; |
1da177e4 LT |
867 | link->priv = info; |
868 | ||
869 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
870 | link->io.NumPorts1 = 8; | |
1da177e4 LT |
871 | |
872 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
873 | link->conf.IntType = INT_MEMORY_AND_IO; |
874 | ||
15b99ac1 | 875 | return bluecard_config(link); |
1da177e4 LT |
876 | } |
877 | ||
878 | ||
fba395ee | 879 | static void bluecard_detach(struct pcmcia_device *link) |
1da177e4 LT |
880 | { |
881 | bluecard_info_t *info = link->priv; | |
1da177e4 | 882 | |
e2d40963 | 883 | bluecard_release(link); |
1da177e4 LT |
884 | kfree(info); |
885 | } | |
886 | ||
887 | ||
15b99ac1 | 888 | static int bluecard_config(struct pcmcia_device *link) |
1da177e4 | 889 | { |
1da177e4 | 890 | bluecard_info_t *info = link->priv; |
af2b3b50 | 891 | int i, n; |
1da177e4 | 892 | |
1da177e4 LT |
893 | link->conf.ConfigIndex = 0x20; |
894 | link->io.NumPorts1 = 64; | |
895 | link->io.IOAddrLines = 6; | |
896 | ||
897 | for (n = 0; n < 0x400; n += 0x40) { | |
898 | link->io.BasePort1 = n ^ 0x300; | |
fba395ee | 899 | i = pcmcia_request_io(link, &link->io); |
4c89e88b | 900 | if (i == 0) |
1da177e4 LT |
901 | break; |
902 | } | |
903 | ||
9ac3e58c | 904 | if (i != 0) |
1da177e4 | 905 | goto failed; |
1da177e4 | 906 | |
eb14120f | 907 | i = pcmcia_request_irq(link, bluecard_interrupt); |
9ac3e58c | 908 | if (i != 0) |
eb14120f | 909 | goto failed; |
1da177e4 | 910 | |
fba395ee | 911 | i = pcmcia_request_configuration(link, &link->conf); |
9ac3e58c | 912 | if (i != 0) |
1da177e4 | 913 | goto failed; |
1da177e4 LT |
914 | |
915 | if (bluecard_open(info) != 0) | |
916 | goto failed; | |
917 | ||
15b99ac1 | 918 | return 0; |
1da177e4 | 919 | |
1da177e4 LT |
920 | failed: |
921 | bluecard_release(link); | |
15b99ac1 | 922 | return -ENODEV; |
1da177e4 LT |
923 | } |
924 | ||
925 | ||
fba395ee | 926 | static void bluecard_release(struct pcmcia_device *link) |
1da177e4 LT |
927 | { |
928 | bluecard_info_t *info = link->priv; | |
929 | ||
e2d40963 | 930 | bluecard_close(info); |
1da177e4 LT |
931 | |
932 | del_timer(&(info->timer)); | |
933 | ||
fba395ee | 934 | pcmcia_disable_device(link); |
1da177e4 LT |
935 | } |
936 | ||
7f70cb6d DB |
937 | static struct pcmcia_device_id bluecard_ids[] = { |
938 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), | |
939 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), | |
940 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), | |
941 | PCMCIA_DEVICE_NULL | |
942 | }; | |
943 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); | |
944 | ||
1da177e4 LT |
945 | static struct pcmcia_driver bluecard_driver = { |
946 | .owner = THIS_MODULE, | |
947 | .drv = { | |
948 | .name = "bluecard_cs", | |
949 | }, | |
15b99ac1 | 950 | .probe = bluecard_probe, |
cc3b4866 | 951 | .remove = bluecard_detach, |
7f70cb6d | 952 | .id_table = bluecard_ids, |
1da177e4 LT |
953 | }; |
954 | ||
955 | static int __init init_bluecard_cs(void) | |
956 | { | |
957 | return pcmcia_register_driver(&bluecard_driver); | |
958 | } | |
959 | ||
960 | ||
961 | static void __exit exit_bluecard_cs(void) | |
962 | { | |
963 | pcmcia_unregister_driver(&bluecard_driver); | |
1da177e4 LT |
964 | } |
965 | ||
966 | module_init(init_bluecard_cs); | |
967 | module_exit(exit_bluecard_cs); |