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 | |
c7ab7330 | 96 | #define CARD_ACTIVITY 2 |
1da177e4 LT |
97 | #define CARD_HAS_PCCARD_ID 4 |
98 | #define CARD_HAS_POWER_LED 5 | |
99 | #define CARD_HAS_ACTIVITY_LED 6 | |
100 | ||
101 | /* Transmit states */ | |
102 | #define XMIT_SENDING 1 | |
103 | #define XMIT_WAKEUP 2 | |
104 | #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ | |
105 | #define XMIT_BUF_ONE_READY 6 | |
106 | #define XMIT_BUF_TWO_READY 7 | |
107 | #define XMIT_SENDING_READY 8 | |
108 | ||
109 | /* Receiver states */ | |
110 | #define RECV_WAIT_PACKET_TYPE 0 | |
111 | #define RECV_WAIT_EVENT_HEADER 1 | |
112 | #define RECV_WAIT_ACL_HEADER 2 | |
113 | #define RECV_WAIT_SCO_HEADER 3 | |
114 | #define RECV_WAIT_DATA 4 | |
115 | ||
116 | /* Special packet types */ | |
117 | #define PKT_BAUD_RATE_57600 0x80 | |
118 | #define PKT_BAUD_RATE_115200 0x81 | |
119 | #define PKT_BAUD_RATE_230400 0x82 | |
120 | #define PKT_BAUD_RATE_460800 0x83 | |
121 | ||
122 | ||
123 | /* These are the register offsets */ | |
124 | #define REG_COMMAND 0x20 | |
125 | #define REG_INTERRUPT 0x21 | |
126 | #define REG_CONTROL 0x22 | |
127 | #define REG_RX_CONTROL 0x24 | |
128 | #define REG_CARD_RESET 0x30 | |
129 | #define REG_LED_CTRL 0x30 | |
130 | ||
131 | /* REG_COMMAND */ | |
132 | #define REG_COMMAND_TX_BUF_ONE 0x01 | |
133 | #define REG_COMMAND_TX_BUF_TWO 0x02 | |
134 | #define REG_COMMAND_RX_BUF_ONE 0x04 | |
135 | #define REG_COMMAND_RX_BUF_TWO 0x08 | |
136 | #define REG_COMMAND_RX_WIN_ONE 0x00 | |
137 | #define REG_COMMAND_RX_WIN_TWO 0x10 | |
138 | ||
139 | /* REG_CONTROL */ | |
140 | #define REG_CONTROL_BAUD_RATE_57600 0x00 | |
141 | #define REG_CONTROL_BAUD_RATE_115200 0x01 | |
142 | #define REG_CONTROL_BAUD_RATE_230400 0x02 | |
143 | #define REG_CONTROL_BAUD_RATE_460800 0x03 | |
144 | #define REG_CONTROL_RTS 0x04 | |
145 | #define REG_CONTROL_BT_ON 0x08 | |
146 | #define REG_CONTROL_BT_RESET 0x10 | |
147 | #define REG_CONTROL_BT_RES_PU 0x20 | |
148 | #define REG_CONTROL_INTERRUPT 0x40 | |
149 | #define REG_CONTROL_CARD_RESET 0x80 | |
150 | ||
151 | /* REG_RX_CONTROL */ | |
152 | #define RTS_LEVEL_SHIFT_BITS 0x02 | |
153 | ||
154 | ||
155 | ||
156 | /* ======================== LED handling routines ======================== */ | |
157 | ||
158 | ||
04356052 | 159 | static void bluecard_activity_led_timeout(struct timer_list *t) |
1da177e4 | 160 | { |
04356052 | 161 | struct bluecard_info *info = from_timer(info, t, timer); |
9a017a91 | 162 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 | 163 | |
c7ab7330 OZ |
164 | if (test_bit(CARD_ACTIVITY, &(info->hw_state))) { |
165 | /* leave LED in inactive state for HZ/10 for blink effect */ | |
166 | clear_bit(CARD_ACTIVITY, &(info->hw_state)); | |
167 | mod_timer(&(info->timer), jiffies + HZ / 10); | |
1da177e4 | 168 | } |
c7ab7330 OZ |
169 | |
170 | /* Disable activity LED, enable power LED */ | |
171 | outb(0x08 | 0x20, iobase + 0x30); | |
1da177e4 LT |
172 | } |
173 | ||
174 | ||
d664cd98 | 175 | static void bluecard_enable_activity_led(struct bluecard_info *info) |
1da177e4 | 176 | { |
9a017a91 | 177 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 | 178 | |
c7ab7330 OZ |
179 | /* don't disturb running blink timer */ |
180 | if (timer_pending(&(info->timer))) | |
181 | return; | |
182 | ||
183 | set_bit(CARD_ACTIVITY, &(info->hw_state)); | |
184 | ||
1da177e4 | 185 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { |
859d2351 OZ |
186 | /* Enable activity LED, keep power LED enabled */ |
187 | outb(0x18 | 0x60, iobase + 0x30); | |
1da177e4 | 188 | } else { |
c7ab7330 OZ |
189 | /* Disable power LED */ |
190 | outb(0x00, iobase + 0x30); | |
1da177e4 | 191 | } |
c7ab7330 OZ |
192 | |
193 | /* Stop the LED after HZ/10 */ | |
194 | mod_timer(&(info->timer), jiffies + HZ / 10); | |
1da177e4 LT |
195 | } |
196 | ||
197 | ||
198 | ||
199 | /* ======================== Interrupt handling ======================== */ | |
200 | ||
201 | ||
202 | static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) | |
203 | { | |
204 | int i, actual; | |
205 | ||
206 | actual = (len > 15) ? 15 : len; | |
207 | ||
208 | outb_p(actual, iobase + offset); | |
209 | ||
210 | for (i = 0; i < actual; i++) | |
211 | outb_p(buf[i], iobase + offset + i + 1); | |
212 | ||
213 | return actual; | |
214 | } | |
215 | ||
216 | ||
d664cd98 | 217 | static void bluecard_write_wakeup(struct bluecard_info *info) |
1da177e4 LT |
218 | { |
219 | if (!info) { | |
220 | BT_ERR("Unknown device"); | |
221 | return; | |
222 | } | |
223 | ||
224 | if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
225 | return; | |
226 | ||
227 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { | |
228 | set_bit(XMIT_WAKEUP, &(info->tx_state)); | |
229 | return; | |
230 | } | |
231 | ||
232 | do { | |
fc5fef61 GP |
233 | unsigned int iobase = info->p_dev->resource[0]->start; |
234 | unsigned int offset; | |
235 | unsigned char command; | |
236 | unsigned long ready_bit; | |
1da177e4 | 237 | register struct sk_buff *skb; |
fc5fef61 | 238 | int len; |
1da177e4 LT |
239 | |
240 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); | |
241 | ||
e2d40963 | 242 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
243 | return; |
244 | ||
245 | if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { | |
246 | if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) | |
247 | break; | |
248 | offset = 0x10; | |
249 | command = REG_COMMAND_TX_BUF_TWO; | |
250 | ready_bit = XMIT_BUF_TWO_READY; | |
251 | } else { | |
252 | if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) | |
253 | break; | |
254 | offset = 0x00; | |
255 | command = REG_COMMAND_TX_BUF_ONE; | |
256 | ready_bit = XMIT_BUF_ONE_READY; | |
257 | } | |
258 | ||
a08b15e6 VI |
259 | skb = skb_dequeue(&(info->txq)); |
260 | if (!skb) | |
1da177e4 LT |
261 | break; |
262 | ||
618e8bc2 | 263 | if (hci_skb_pkt_type(skb) & 0x80) { |
1da177e4 LT |
264 | /* Disable RTS */ |
265 | info->ctrl_reg |= REG_CONTROL_RTS; | |
266 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
267 | } | |
268 | ||
269 | /* Activate LED */ | |
270 | bluecard_enable_activity_led(info); | |
271 | ||
272 | /* Send frame */ | |
273 | len = bluecard_write(iobase, offset, skb->data, skb->len); | |
274 | ||
275 | /* Tell the FPGA to send the data */ | |
276 | outb_p(command, iobase + REG_COMMAND); | |
277 | ||
278 | /* Mark the buffer as dirty */ | |
279 | clear_bit(ready_bit, &(info->tx_state)); | |
280 | ||
618e8bc2 | 281 | if (hci_skb_pkt_type(skb) & 0x80) { |
7259f0d0 | 282 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq); |
1da177e4 LT |
283 | DEFINE_WAIT(wait); |
284 | ||
285 | unsigned char baud_reg; | |
286 | ||
618e8bc2 | 287 | switch (hci_skb_pkt_type(skb)) { |
1da177e4 LT |
288 | case PKT_BAUD_RATE_460800: |
289 | baud_reg = REG_CONTROL_BAUD_RATE_460800; | |
290 | break; | |
291 | case PKT_BAUD_RATE_230400: | |
292 | baud_reg = REG_CONTROL_BAUD_RATE_230400; | |
293 | break; | |
294 | case PKT_BAUD_RATE_115200: | |
295 | baud_reg = REG_CONTROL_BAUD_RATE_115200; | |
296 | break; | |
297 | case PKT_BAUD_RATE_57600: | |
298 | /* Fall through... */ | |
299 | default: | |
300 | baud_reg = REG_CONTROL_BAUD_RATE_57600; | |
301 | break; | |
302 | } | |
303 | ||
304 | /* Wait until the command reaches the baseband */ | |
479f335c | 305 | mdelay(100); |
1da177e4 LT |
306 | |
307 | /* Set baud on baseband */ | |
308 | info->ctrl_reg &= ~0x03; | |
309 | info->ctrl_reg |= baud_reg; | |
310 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
311 | ||
312 | /* Enable RTS */ | |
313 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
314 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
315 | ||
316 | /* Wait before the next HCI packet can be send */ | |
479f335c | 317 | mdelay(1000); |
1da177e4 LT |
318 | } |
319 | ||
320 | if (len == skb->len) { | |
321 | kfree_skb(skb); | |
322 | } else { | |
323 | skb_pull(skb, len); | |
324 | skb_queue_head(&(info->txq), skb); | |
325 | } | |
326 | ||
327 | info->hdev->stat.byte_tx += len; | |
328 | ||
329 | /* Change buffer */ | |
330 | change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); | |
331 | ||
332 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); | |
333 | ||
334 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
335 | } | |
336 | ||
337 | ||
338 | static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) | |
339 | { | |
340 | int i, n, len; | |
341 | ||
342 | outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); | |
343 | ||
344 | len = inb(iobase + offset); | |
345 | n = 0; | |
346 | i = 1; | |
347 | ||
348 | while (n < len) { | |
349 | ||
350 | if (i == 16) { | |
351 | outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); | |
352 | i = 0; | |
353 | } | |
354 | ||
355 | buf[n] = inb(iobase + offset + i); | |
356 | ||
357 | n++; | |
358 | i++; | |
359 | ||
360 | } | |
361 | ||
362 | return len; | |
363 | } | |
364 | ||
365 | ||
d664cd98 HS |
366 | static void bluecard_receive(struct bluecard_info *info, |
367 | unsigned int offset) | |
1da177e4 LT |
368 | { |
369 | unsigned int iobase; | |
370 | unsigned char buf[31]; | |
371 | int i, len; | |
372 | ||
373 | if (!info) { | |
374 | BT_ERR("Unknown device"); | |
375 | return; | |
376 | } | |
377 | ||
9a017a91 | 378 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
379 | |
380 | if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
381 | bluecard_enable_activity_led(info); | |
382 | ||
383 | len = bluecard_read(iobase, offset, buf, sizeof(buf)); | |
384 | ||
385 | for (i = 0; i < len; i++) { | |
386 | ||
387 | /* Allocate packet */ | |
54b5b34e | 388 | if (!info->rx_skb) { |
1da177e4 LT |
389 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
390 | info->rx_count = 0; | |
a08b15e6 VI |
391 | info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
392 | if (!info->rx_skb) { | |
1da177e4 LT |
393 | BT_ERR("Can't allocate mem for new packet"); |
394 | return; | |
395 | } | |
396 | } | |
397 | ||
398 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
399 | ||
618e8bc2 | 400 | hci_skb_pkt_type(info->rx_skb) = buf[i]; |
1da177e4 | 401 | |
618e8bc2 | 402 | switch (hci_skb_pkt_type(info->rx_skb)) { |
1da177e4 LT |
403 | |
404 | case 0x00: | |
405 | /* init packet */ | |
406 | if (offset != 0x00) { | |
407 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
408 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
409 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
410 | bluecard_write_wakeup(info); | |
411 | } | |
412 | ||
413 | kfree_skb(info->rx_skb); | |
414 | info->rx_skb = NULL; | |
415 | break; | |
416 | ||
417 | case HCI_EVENT_PKT: | |
418 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
419 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
420 | break; | |
421 | ||
422 | case HCI_ACLDATA_PKT: | |
423 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
424 | info->rx_count = HCI_ACL_HDR_SIZE; | |
425 | break; | |
426 | ||
427 | case HCI_SCODATA_PKT: | |
428 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
429 | info->rx_count = HCI_SCO_HDR_SIZE; | |
430 | break; | |
431 | ||
432 | default: | |
433 | /* unknown packet */ | |
618e8bc2 MH |
434 | BT_ERR("Unknown HCI packet with type 0x%02x received", |
435 | hci_skb_pkt_type(info->rx_skb)); | |
1da177e4 LT |
436 | info->hdev->stat.err_rx++; |
437 | ||
438 | kfree_skb(info->rx_skb); | |
439 | info->rx_skb = NULL; | |
440 | break; | |
441 | ||
442 | } | |
443 | ||
444 | } else { | |
445 | ||
634fef61 | 446 | skb_put_u8(info->rx_skb, buf[i]); |
1da177e4 LT |
447 | info->rx_count--; |
448 | ||
449 | if (info->rx_count == 0) { | |
450 | ||
451 | int dlen; | |
452 | struct hci_event_hdr *eh; | |
453 | struct hci_acl_hdr *ah; | |
454 | struct hci_sco_hdr *sh; | |
455 | ||
456 | switch (info->rx_state) { | |
457 | ||
458 | case RECV_WAIT_EVENT_HEADER: | |
2a123b86 | 459 | eh = hci_event_hdr(info->rx_skb); |
1da177e4 LT |
460 | info->rx_state = RECV_WAIT_DATA; |
461 | info->rx_count = eh->plen; | |
462 | break; | |
463 | ||
464 | case RECV_WAIT_ACL_HEADER: | |
2a123b86 | 465 | ah = hci_acl_hdr(info->rx_skb); |
1da177e4 LT |
466 | dlen = __le16_to_cpu(ah->dlen); |
467 | info->rx_state = RECV_WAIT_DATA; | |
468 | info->rx_count = dlen; | |
469 | break; | |
470 | ||
471 | case RECV_WAIT_SCO_HEADER: | |
2a123b86 | 472 | sh = hci_sco_hdr(info->rx_skb); |
1da177e4 LT |
473 | info->rx_state = RECV_WAIT_DATA; |
474 | info->rx_count = sh->dlen; | |
475 | break; | |
476 | ||
477 | case RECV_WAIT_DATA: | |
e1a26170 | 478 | hci_recv_frame(info->hdev, info->rx_skb); |
1da177e4 LT |
479 | info->rx_skb = NULL; |
480 | break; | |
481 | ||
482 | } | |
483 | ||
484 | } | |
485 | ||
486 | } | |
487 | ||
488 | ||
489 | } | |
490 | ||
491 | info->hdev->stat.byte_rx += len; | |
492 | } | |
493 | ||
494 | ||
7d12e780 | 495 | static irqreturn_t bluecard_interrupt(int irq, void *dev_inst) |
1da177e4 | 496 | { |
d664cd98 | 497 | struct bluecard_info *info = dev_inst; |
1da177e4 LT |
498 | unsigned int iobase; |
499 | unsigned char reg; | |
500 | ||
7427847d MF |
501 | if (!info || !info->hdev) |
502 | /* our irq handler is shared */ | |
503 | return IRQ_NONE; | |
1da177e4 LT |
504 | |
505 | if (!test_bit(CARD_READY, &(info->hw_state))) | |
506 | return IRQ_HANDLED; | |
507 | ||
9a017a91 | 508 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
509 | |
510 | spin_lock(&(info->lock)); | |
511 | ||
512 | /* Disable interrupt */ | |
513 | info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; | |
514 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
515 | ||
516 | reg = inb(iobase + REG_INTERRUPT); | |
517 | ||
518 | if ((reg != 0x00) && (reg != 0xff)) { | |
519 | ||
520 | if (reg & 0x04) { | |
521 | bluecard_receive(info, 0x00); | |
522 | outb(0x04, iobase + REG_INTERRUPT); | |
523 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
524 | } | |
525 | ||
526 | if (reg & 0x08) { | |
527 | bluecard_receive(info, 0x10); | |
528 | outb(0x08, iobase + REG_INTERRUPT); | |
529 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
530 | } | |
531 | ||
532 | if (reg & 0x01) { | |
533 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
534 | outb(0x01, iobase + REG_INTERRUPT); | |
535 | bluecard_write_wakeup(info); | |
536 | } | |
537 | ||
538 | if (reg & 0x02) { | |
539 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
540 | outb(0x02, iobase + REG_INTERRUPT); | |
541 | bluecard_write_wakeup(info); | |
542 | } | |
543 | ||
544 | } | |
545 | ||
546 | /* Enable interrupt */ | |
547 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
548 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
549 | ||
550 | spin_unlock(&(info->lock)); | |
551 | ||
552 | return IRQ_HANDLED; | |
553 | } | |
554 | ||
555 | ||
556 | ||
557 | /* ======================== Device specific HCI commands ======================== */ | |
558 | ||
559 | ||
560 | static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) | |
561 | { | |
d664cd98 | 562 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 LT |
563 | struct sk_buff *skb; |
564 | ||
565 | /* Ericsson baud rate command */ | |
566 | unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; | |
567 | ||
a08b15e6 VI |
568 | skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
569 | if (!skb) { | |
1da177e4 LT |
570 | BT_ERR("Can't allocate mem for new packet"); |
571 | return -1; | |
572 | } | |
573 | ||
574 | switch (baud) { | |
575 | case 460800: | |
576 | cmd[4] = 0x00; | |
618e8bc2 | 577 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_460800; |
1da177e4 LT |
578 | break; |
579 | case 230400: | |
580 | cmd[4] = 0x01; | |
618e8bc2 | 581 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_230400; |
1da177e4 LT |
582 | break; |
583 | case 115200: | |
584 | cmd[4] = 0x02; | |
618e8bc2 | 585 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_115200; |
1da177e4 LT |
586 | break; |
587 | case 57600: | |
588 | /* Fall through... */ | |
589 | default: | |
590 | cmd[4] = 0x03; | |
618e8bc2 | 591 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_57600; |
1da177e4 LT |
592 | break; |
593 | } | |
594 | ||
59ae1d12 | 595 | skb_put_data(skb, cmd, sizeof(cmd)); |
1da177e4 LT |
596 | |
597 | skb_queue_tail(&(info->txq), skb); | |
598 | ||
599 | bluecard_write_wakeup(info); | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | ||
605 | ||
606 | /* ======================== HCI interface ======================== */ | |
607 | ||
608 | ||
609 | static int bluecard_hci_flush(struct hci_dev *hdev) | |
610 | { | |
d664cd98 | 611 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 LT |
612 | |
613 | /* Drop TX queue */ | |
614 | skb_queue_purge(&(info->txq)); | |
615 | ||
616 | return 0; | |
617 | } | |
618 | ||
619 | ||
620 | static int bluecard_hci_open(struct hci_dev *hdev) | |
621 | { | |
d664cd98 | 622 | struct bluecard_info *info = hci_get_drvdata(hdev); |
df44f531 | 623 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
624 | |
625 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
626 | bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); | |
627 | ||
859d2351 | 628 | /* Enable power LED */ |
df44f531 | 629 | outb(0x08 | 0x20, iobase + 0x30); |
1da177e4 LT |
630 | |
631 | return 0; | |
632 | } | |
633 | ||
634 | ||
635 | static int bluecard_hci_close(struct hci_dev *hdev) | |
636 | { | |
d664cd98 | 637 | struct bluecard_info *info = hci_get_drvdata(hdev); |
df44f531 | 638 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 | 639 | |
1da177e4 LT |
640 | bluecard_hci_flush(hdev); |
641 | ||
859d2351 OZ |
642 | /* Stop LED timer */ |
643 | del_timer_sync(&(info->timer)); | |
644 | ||
645 | /* Disable power LED */ | |
df44f531 | 646 | outb(0x00, iobase + 0x30); |
1da177e4 LT |
647 | |
648 | return 0; | |
649 | } | |
650 | ||
651 | ||
7bd8f09f | 652 | static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 | 653 | { |
d664cd98 | 654 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 | 655 | |
618e8bc2 | 656 | switch (hci_skb_pkt_type(skb)) { |
1da177e4 LT |
657 | case HCI_COMMAND_PKT: |
658 | hdev->stat.cmd_tx++; | |
659 | break; | |
660 | case HCI_ACLDATA_PKT: | |
661 | hdev->stat.acl_tx++; | |
662 | break; | |
663 | case HCI_SCODATA_PKT: | |
664 | hdev->stat.sco_tx++; | |
665 | break; | |
ce9b0048 | 666 | } |
1da177e4 LT |
667 | |
668 | /* Prepend skb with frame type */ | |
618e8bc2 | 669 | memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); |
1da177e4 LT |
670 | skb_queue_tail(&(info->txq), skb); |
671 | ||
672 | bluecard_write_wakeup(info); | |
673 | ||
674 | return 0; | |
675 | } | |
676 | ||
677 | ||
1da177e4 LT |
678 | |
679 | /* ======================== Card services HCI interaction ======================== */ | |
680 | ||
681 | ||
d664cd98 | 682 | static int bluecard_open(struct bluecard_info *info) |
1da177e4 | 683 | { |
9a017a91 | 684 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
685 | struct hci_dev *hdev; |
686 | unsigned char id; | |
687 | ||
688 | spin_lock_init(&(info->lock)); | |
689 | ||
04356052 | 690 | timer_setup(&info->timer, bluecard_activity_led_timeout, 0); |
1da177e4 LT |
691 | |
692 | skb_queue_head_init(&(info->txq)); | |
693 | ||
694 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
695 | info->rx_count = 0; | |
696 | info->rx_skb = NULL; | |
697 | ||
698 | /* Initialize HCI device */ | |
699 | hdev = hci_alloc_dev(); | |
700 | if (!hdev) { | |
701 | BT_ERR("Can't allocate HCI device"); | |
702 | return -ENOMEM; | |
703 | } | |
704 | ||
705 | info->hdev = hdev; | |
706 | ||
c13854ce | 707 | hdev->bus = HCI_PCCARD; |
155961e8 | 708 | hci_set_drvdata(hdev, info); |
27d35284 | 709 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 | 710 | |
87d82ee2 MH |
711 | hdev->open = bluecard_hci_open; |
712 | hdev->close = bluecard_hci_close; | |
713 | hdev->flush = bluecard_hci_flush; | |
714 | hdev->send = bluecard_hci_send_frame; | |
1da177e4 | 715 | |
1da177e4 LT |
716 | id = inb(iobase + 0x30); |
717 | ||
718 | if ((id & 0x0f) == 0x02) | |
719 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); | |
720 | ||
721 | if (id & 0x10) | |
722 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); | |
723 | ||
724 | if (id & 0x20) | |
725 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); | |
726 | ||
727 | /* Reset card */ | |
728 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
729 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
730 | ||
731 | /* Turn FPGA off */ | |
732 | outb(0x80, iobase + 0x30); | |
733 | ||
734 | /* Wait some time */ | |
735 | msleep(10); | |
736 | ||
737 | /* Turn FPGA on */ | |
738 | outb(0x00, iobase + 0x30); | |
739 | ||
740 | /* Activate card */ | |
741 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; | |
742 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
743 | ||
744 | /* Enable interrupt */ | |
745 | outb(0xff, iobase + REG_INTERRUPT); | |
746 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
747 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
748 | ||
749 | if ((id & 0x0f) == 0x03) { | |
750 | /* Disable RTS */ | |
751 | info->ctrl_reg |= REG_CONTROL_RTS; | |
752 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
753 | ||
754 | /* Set baud rate */ | |
755 | info->ctrl_reg |= 0x03; | |
756 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
757 | ||
758 | /* Enable RTS */ | |
759 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
760 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
761 | ||
762 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
763 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
764 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
765 | } | |
766 | ||
767 | /* Start the RX buffers */ | |
768 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
769 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
770 | ||
771 | /* Signal that the hardware is ready */ | |
772 | set_bit(CARD_READY, &(info->hw_state)); | |
773 | ||
774 | /* Drop TX queue */ | |
775 | skb_queue_purge(&(info->txq)); | |
776 | ||
777 | /* Control the point at which RTS is enabled */ | |
778 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); | |
779 | ||
780 | /* Timeout before it is safe to send the first HCI packet */ | |
781 | msleep(1250); | |
782 | ||
783 | /* Register HCI device */ | |
784 | if (hci_register_dev(hdev) < 0) { | |
785 | BT_ERR("Can't register HCI device"); | |
786 | info->hdev = NULL; | |
787 | hci_free_dev(hdev); | |
788 | return -ENODEV; | |
789 | } | |
790 | ||
791 | return 0; | |
792 | } | |
793 | ||
794 | ||
d664cd98 | 795 | static int bluecard_close(struct bluecard_info *info) |
1da177e4 | 796 | { |
9a017a91 | 797 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
798 | struct hci_dev *hdev = info->hdev; |
799 | ||
800 | if (!hdev) | |
801 | return -ENODEV; | |
802 | ||
803 | bluecard_hci_close(hdev); | |
804 | ||
805 | clear_bit(CARD_READY, &(info->hw_state)); | |
806 | ||
807 | /* Reset card */ | |
808 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
809 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
810 | ||
811 | /* Turn FPGA off */ | |
812 | outb(0x80, iobase + 0x30); | |
813 | ||
13ea4015 | 814 | hci_unregister_dev(hdev); |
1da177e4 LT |
815 | hci_free_dev(hdev); |
816 | ||
817 | return 0; | |
818 | } | |
819 | ||
15b99ac1 | 820 | static int bluecard_probe(struct pcmcia_device *link) |
1da177e4 | 821 | { |
d664cd98 | 822 | struct bluecard_info *info; |
1da177e4 LT |
823 | |
824 | /* Create new info device */ | |
1a31c602 | 825 | info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); |
1da177e4 | 826 | if (!info) |
f8cfa618 | 827 | return -ENOMEM; |
1da177e4 | 828 | |
fba395ee | 829 | info->p_dev = link; |
1da177e4 LT |
830 | link->priv = info; |
831 | ||
1ac71e5a | 832 | link->config_flags |= CONF_ENABLE_IRQ; |
1da177e4 | 833 | |
15b99ac1 | 834 | return bluecard_config(link); |
1da177e4 LT |
835 | } |
836 | ||
837 | ||
fba395ee | 838 | static void bluecard_detach(struct pcmcia_device *link) |
1da177e4 | 839 | { |
e2d40963 | 840 | bluecard_release(link); |
1da177e4 LT |
841 | } |
842 | ||
843 | ||
15b99ac1 | 844 | static int bluecard_config(struct pcmcia_device *link) |
1da177e4 | 845 | { |
d664cd98 | 846 | struct bluecard_info *info = link->priv; |
af2b3b50 | 847 | int i, n; |
1da177e4 | 848 | |
7feabb64 | 849 | link->config_index = 0x20; |
90abdc3b DB |
850 | |
851 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
852 | link->resource[0]->end = 64; | |
853 | link->io_lines = 6; | |
1da177e4 LT |
854 | |
855 | for (n = 0; n < 0x400; n += 0x40) { | |
90abdc3b DB |
856 | link->resource[0]->start = n ^ 0x300; |
857 | i = pcmcia_request_io(link); | |
4c89e88b | 858 | if (i == 0) |
1da177e4 LT |
859 | break; |
860 | } | |
861 | ||
9ac3e58c | 862 | if (i != 0) |
1da177e4 | 863 | goto failed; |
1da177e4 | 864 | |
eb14120f | 865 | i = pcmcia_request_irq(link, bluecard_interrupt); |
9ac3e58c | 866 | if (i != 0) |
eb14120f | 867 | goto failed; |
1da177e4 | 868 | |
1ac71e5a | 869 | i = pcmcia_enable_device(link); |
9ac3e58c | 870 | if (i != 0) |
1da177e4 | 871 | goto failed; |
1da177e4 LT |
872 | |
873 | if (bluecard_open(info) != 0) | |
874 | goto failed; | |
875 | ||
15b99ac1 | 876 | return 0; |
1da177e4 | 877 | |
1da177e4 LT |
878 | failed: |
879 | bluecard_release(link); | |
15b99ac1 | 880 | return -ENODEV; |
1da177e4 LT |
881 | } |
882 | ||
883 | ||
fba395ee | 884 | static void bluecard_release(struct pcmcia_device *link) |
1da177e4 | 885 | { |
d664cd98 | 886 | struct bluecard_info *info = link->priv; |
1da177e4 | 887 | |
e2d40963 | 888 | bluecard_close(info); |
1da177e4 | 889 | |
d8ff9cdf | 890 | del_timer_sync(&(info->timer)); |
1da177e4 | 891 | |
fba395ee | 892 | pcmcia_disable_device(link); |
1da177e4 LT |
893 | } |
894 | ||
25f8f54f | 895 | static const struct pcmcia_device_id bluecard_ids[] = { |
7f70cb6d DB |
896 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), |
897 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), | |
898 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), | |
899 | PCMCIA_DEVICE_NULL | |
900 | }; | |
901 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); | |
902 | ||
1da177e4 LT |
903 | static struct pcmcia_driver bluecard_driver = { |
904 | .owner = THIS_MODULE, | |
2e9b981a | 905 | .name = "bluecard_cs", |
15b99ac1 | 906 | .probe = bluecard_probe, |
cc3b4866 | 907 | .remove = bluecard_detach, |
7f70cb6d | 908 | .id_table = bluecard_ids, |
1da177e4 | 909 | }; |
e0c005f4 | 910 | module_pcmcia_driver(bluecard_driver); |