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: | |
1da177e4 LT |
298 | default: |
299 | baud_reg = REG_CONTROL_BAUD_RATE_57600; | |
300 | break; | |
301 | } | |
302 | ||
303 | /* Wait until the command reaches the baseband */ | |
479f335c | 304 | mdelay(100); |
1da177e4 LT |
305 | |
306 | /* Set baud on baseband */ | |
307 | info->ctrl_reg &= ~0x03; | |
308 | info->ctrl_reg |= baud_reg; | |
309 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
310 | ||
311 | /* Enable RTS */ | |
312 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
313 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
314 | ||
315 | /* Wait before the next HCI packet can be send */ | |
479f335c | 316 | mdelay(1000); |
1da177e4 LT |
317 | } |
318 | ||
319 | if (len == skb->len) { | |
320 | kfree_skb(skb); | |
321 | } else { | |
322 | skb_pull(skb, len); | |
323 | skb_queue_head(&(info->txq), skb); | |
324 | } | |
325 | ||
326 | info->hdev->stat.byte_tx += len; | |
327 | ||
328 | /* Change buffer */ | |
329 | change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); | |
330 | ||
331 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); | |
332 | ||
333 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
334 | } | |
335 | ||
336 | ||
337 | static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) | |
338 | { | |
339 | int i, n, len; | |
340 | ||
341 | outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); | |
342 | ||
343 | len = inb(iobase + offset); | |
344 | n = 0; | |
345 | i = 1; | |
346 | ||
347 | while (n < len) { | |
348 | ||
349 | if (i == 16) { | |
350 | outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); | |
351 | i = 0; | |
352 | } | |
353 | ||
354 | buf[n] = inb(iobase + offset + i); | |
355 | ||
356 | n++; | |
357 | i++; | |
358 | ||
359 | } | |
360 | ||
361 | return len; | |
362 | } | |
363 | ||
364 | ||
d664cd98 HS |
365 | static void bluecard_receive(struct bluecard_info *info, |
366 | unsigned int offset) | |
1da177e4 LT |
367 | { |
368 | unsigned int iobase; | |
369 | unsigned char buf[31]; | |
370 | int i, len; | |
371 | ||
372 | if (!info) { | |
373 | BT_ERR("Unknown device"); | |
374 | return; | |
375 | } | |
376 | ||
9a017a91 | 377 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
378 | |
379 | if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
380 | bluecard_enable_activity_led(info); | |
381 | ||
382 | len = bluecard_read(iobase, offset, buf, sizeof(buf)); | |
383 | ||
384 | for (i = 0; i < len; i++) { | |
385 | ||
386 | /* Allocate packet */ | |
54b5b34e | 387 | if (!info->rx_skb) { |
1da177e4 LT |
388 | info->rx_state = RECV_WAIT_PACKET_TYPE; |
389 | info->rx_count = 0; | |
a08b15e6 VI |
390 | info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); |
391 | if (!info->rx_skb) { | |
1da177e4 LT |
392 | BT_ERR("Can't allocate mem for new packet"); |
393 | return; | |
394 | } | |
395 | } | |
396 | ||
397 | if (info->rx_state == RECV_WAIT_PACKET_TYPE) { | |
398 | ||
618e8bc2 | 399 | hci_skb_pkt_type(info->rx_skb) = buf[i]; |
1da177e4 | 400 | |
618e8bc2 | 401 | switch (hci_skb_pkt_type(info->rx_skb)) { |
1da177e4 LT |
402 | |
403 | case 0x00: | |
404 | /* init packet */ | |
405 | if (offset != 0x00) { | |
406 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
407 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
408 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
409 | bluecard_write_wakeup(info); | |
410 | } | |
411 | ||
412 | kfree_skb(info->rx_skb); | |
413 | info->rx_skb = NULL; | |
414 | break; | |
415 | ||
416 | case HCI_EVENT_PKT: | |
417 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
418 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
419 | break; | |
420 | ||
421 | case HCI_ACLDATA_PKT: | |
422 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
423 | info->rx_count = HCI_ACL_HDR_SIZE; | |
424 | break; | |
425 | ||
426 | case HCI_SCODATA_PKT: | |
427 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
428 | info->rx_count = HCI_SCO_HDR_SIZE; | |
429 | break; | |
430 | ||
431 | default: | |
432 | /* unknown packet */ | |
618e8bc2 MH |
433 | BT_ERR("Unknown HCI packet with type 0x%02x received", |
434 | hci_skb_pkt_type(info->rx_skb)); | |
1da177e4 LT |
435 | info->hdev->stat.err_rx++; |
436 | ||
437 | kfree_skb(info->rx_skb); | |
438 | info->rx_skb = NULL; | |
439 | break; | |
440 | ||
441 | } | |
442 | ||
443 | } else { | |
444 | ||
634fef61 | 445 | skb_put_u8(info->rx_skb, buf[i]); |
1da177e4 LT |
446 | info->rx_count--; |
447 | ||
448 | if (info->rx_count == 0) { | |
449 | ||
450 | int dlen; | |
451 | struct hci_event_hdr *eh; | |
452 | struct hci_acl_hdr *ah; | |
453 | struct hci_sco_hdr *sh; | |
454 | ||
455 | switch (info->rx_state) { | |
456 | ||
457 | case RECV_WAIT_EVENT_HEADER: | |
2a123b86 | 458 | eh = hci_event_hdr(info->rx_skb); |
1da177e4 LT |
459 | info->rx_state = RECV_WAIT_DATA; |
460 | info->rx_count = eh->plen; | |
461 | break; | |
462 | ||
463 | case RECV_WAIT_ACL_HEADER: | |
2a123b86 | 464 | ah = hci_acl_hdr(info->rx_skb); |
1da177e4 LT |
465 | dlen = __le16_to_cpu(ah->dlen); |
466 | info->rx_state = RECV_WAIT_DATA; | |
467 | info->rx_count = dlen; | |
468 | break; | |
469 | ||
470 | case RECV_WAIT_SCO_HEADER: | |
2a123b86 | 471 | sh = hci_sco_hdr(info->rx_skb); |
1da177e4 LT |
472 | info->rx_state = RECV_WAIT_DATA; |
473 | info->rx_count = sh->dlen; | |
474 | break; | |
475 | ||
476 | case RECV_WAIT_DATA: | |
e1a26170 | 477 | hci_recv_frame(info->hdev, info->rx_skb); |
1da177e4 LT |
478 | info->rx_skb = NULL; |
479 | break; | |
480 | ||
481 | } | |
482 | ||
483 | } | |
484 | ||
485 | } | |
486 | ||
487 | ||
488 | } | |
489 | ||
490 | info->hdev->stat.byte_rx += len; | |
491 | } | |
492 | ||
493 | ||
7d12e780 | 494 | static irqreturn_t bluecard_interrupt(int irq, void *dev_inst) |
1da177e4 | 495 | { |
d664cd98 | 496 | struct bluecard_info *info = dev_inst; |
1da177e4 LT |
497 | unsigned int iobase; |
498 | unsigned char reg; | |
499 | ||
7427847d MF |
500 | if (!info || !info->hdev) |
501 | /* our irq handler is shared */ | |
502 | return IRQ_NONE; | |
1da177e4 LT |
503 | |
504 | if (!test_bit(CARD_READY, &(info->hw_state))) | |
505 | return IRQ_HANDLED; | |
506 | ||
9a017a91 | 507 | iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
508 | |
509 | spin_lock(&(info->lock)); | |
510 | ||
511 | /* Disable interrupt */ | |
512 | info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; | |
513 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
514 | ||
515 | reg = inb(iobase + REG_INTERRUPT); | |
516 | ||
517 | if ((reg != 0x00) && (reg != 0xff)) { | |
518 | ||
519 | if (reg & 0x04) { | |
520 | bluecard_receive(info, 0x00); | |
521 | outb(0x04, iobase + REG_INTERRUPT); | |
522 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
523 | } | |
524 | ||
525 | if (reg & 0x08) { | |
526 | bluecard_receive(info, 0x10); | |
527 | outb(0x08, iobase + REG_INTERRUPT); | |
528 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
529 | } | |
530 | ||
531 | if (reg & 0x01) { | |
532 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
533 | outb(0x01, iobase + REG_INTERRUPT); | |
534 | bluecard_write_wakeup(info); | |
535 | } | |
536 | ||
537 | if (reg & 0x02) { | |
538 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
539 | outb(0x02, iobase + REG_INTERRUPT); | |
540 | bluecard_write_wakeup(info); | |
541 | } | |
542 | ||
543 | } | |
544 | ||
545 | /* Enable interrupt */ | |
546 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
547 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
548 | ||
549 | spin_unlock(&(info->lock)); | |
550 | ||
551 | return IRQ_HANDLED; | |
552 | } | |
553 | ||
554 | ||
555 | ||
556 | /* ======================== Device specific HCI commands ======================== */ | |
557 | ||
558 | ||
559 | static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) | |
560 | { | |
d664cd98 | 561 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 LT |
562 | struct sk_buff *skb; |
563 | ||
564 | /* Ericsson baud rate command */ | |
565 | unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; | |
566 | ||
5f9c6580 | 567 | skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_KERNEL); |
a08b15e6 | 568 | if (!skb) { |
1da177e4 LT |
569 | BT_ERR("Can't allocate mem for new packet"); |
570 | return -1; | |
571 | } | |
572 | ||
573 | switch (baud) { | |
574 | case 460800: | |
575 | cmd[4] = 0x00; | |
618e8bc2 | 576 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_460800; |
1da177e4 LT |
577 | break; |
578 | case 230400: | |
579 | cmd[4] = 0x01; | |
618e8bc2 | 580 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_230400; |
1da177e4 LT |
581 | break; |
582 | case 115200: | |
583 | cmd[4] = 0x02; | |
618e8bc2 | 584 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_115200; |
1da177e4 LT |
585 | break; |
586 | case 57600: | |
1da177e4 LT |
587 | default: |
588 | cmd[4] = 0x03; | |
618e8bc2 | 589 | hci_skb_pkt_type(skb) = PKT_BAUD_RATE_57600; |
1da177e4 LT |
590 | break; |
591 | } | |
592 | ||
59ae1d12 | 593 | skb_put_data(skb, cmd, sizeof(cmd)); |
1da177e4 LT |
594 | |
595 | skb_queue_tail(&(info->txq), skb); | |
596 | ||
597 | bluecard_write_wakeup(info); | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
602 | ||
603 | ||
604 | /* ======================== HCI interface ======================== */ | |
605 | ||
606 | ||
607 | static int bluecard_hci_flush(struct hci_dev *hdev) | |
608 | { | |
d664cd98 | 609 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 LT |
610 | |
611 | /* Drop TX queue */ | |
612 | skb_queue_purge(&(info->txq)); | |
613 | ||
614 | return 0; | |
615 | } | |
616 | ||
617 | ||
618 | static int bluecard_hci_open(struct hci_dev *hdev) | |
619 | { | |
d664cd98 | 620 | struct bluecard_info *info = hci_get_drvdata(hdev); |
df44f531 | 621 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
622 | |
623 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
624 | bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); | |
625 | ||
859d2351 | 626 | /* Enable power LED */ |
df44f531 | 627 | outb(0x08 | 0x20, iobase + 0x30); |
1da177e4 LT |
628 | |
629 | return 0; | |
630 | } | |
631 | ||
632 | ||
633 | static int bluecard_hci_close(struct hci_dev *hdev) | |
634 | { | |
d664cd98 | 635 | struct bluecard_info *info = hci_get_drvdata(hdev); |
df44f531 | 636 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 | 637 | |
1da177e4 LT |
638 | bluecard_hci_flush(hdev); |
639 | ||
859d2351 OZ |
640 | /* Stop LED timer */ |
641 | del_timer_sync(&(info->timer)); | |
642 | ||
643 | /* Disable power LED */ | |
df44f531 | 644 | outb(0x00, iobase + 0x30); |
1da177e4 LT |
645 | |
646 | return 0; | |
647 | } | |
648 | ||
649 | ||
7bd8f09f | 650 | static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 | 651 | { |
d664cd98 | 652 | struct bluecard_info *info = hci_get_drvdata(hdev); |
1da177e4 | 653 | |
618e8bc2 | 654 | switch (hci_skb_pkt_type(skb)) { |
1da177e4 LT |
655 | case HCI_COMMAND_PKT: |
656 | hdev->stat.cmd_tx++; | |
657 | break; | |
658 | case HCI_ACLDATA_PKT: | |
659 | hdev->stat.acl_tx++; | |
660 | break; | |
661 | case HCI_SCODATA_PKT: | |
662 | hdev->stat.sco_tx++; | |
663 | break; | |
ce9b0048 | 664 | } |
1da177e4 LT |
665 | |
666 | /* Prepend skb with frame type */ | |
618e8bc2 | 667 | memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1); |
1da177e4 LT |
668 | skb_queue_tail(&(info->txq), skb); |
669 | ||
670 | bluecard_write_wakeup(info); | |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
675 | ||
1da177e4 LT |
676 | |
677 | /* ======================== Card services HCI interaction ======================== */ | |
678 | ||
679 | ||
d664cd98 | 680 | static int bluecard_open(struct bluecard_info *info) |
1da177e4 | 681 | { |
9a017a91 | 682 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
683 | struct hci_dev *hdev; |
684 | unsigned char id; | |
685 | ||
686 | spin_lock_init(&(info->lock)); | |
687 | ||
04356052 | 688 | timer_setup(&info->timer, bluecard_activity_led_timeout, 0); |
1da177e4 LT |
689 | |
690 | skb_queue_head_init(&(info->txq)); | |
691 | ||
692 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
693 | info->rx_count = 0; | |
694 | info->rx_skb = NULL; | |
695 | ||
696 | /* Initialize HCI device */ | |
697 | hdev = hci_alloc_dev(); | |
698 | if (!hdev) { | |
699 | BT_ERR("Can't allocate HCI device"); | |
700 | return -ENOMEM; | |
701 | } | |
702 | ||
703 | info->hdev = hdev; | |
704 | ||
c13854ce | 705 | hdev->bus = HCI_PCCARD; |
155961e8 | 706 | hci_set_drvdata(hdev, info); |
27d35284 | 707 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 | 708 | |
87d82ee2 MH |
709 | hdev->open = bluecard_hci_open; |
710 | hdev->close = bluecard_hci_close; | |
711 | hdev->flush = bluecard_hci_flush; | |
712 | hdev->send = bluecard_hci_send_frame; | |
1da177e4 | 713 | |
1da177e4 LT |
714 | id = inb(iobase + 0x30); |
715 | ||
716 | if ((id & 0x0f) == 0x02) | |
717 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); | |
718 | ||
719 | if (id & 0x10) | |
720 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); | |
721 | ||
722 | if (id & 0x20) | |
723 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); | |
724 | ||
725 | /* Reset card */ | |
726 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
727 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
728 | ||
729 | /* Turn FPGA off */ | |
730 | outb(0x80, iobase + 0x30); | |
731 | ||
732 | /* Wait some time */ | |
733 | msleep(10); | |
734 | ||
735 | /* Turn FPGA on */ | |
736 | outb(0x00, iobase + 0x30); | |
737 | ||
738 | /* Activate card */ | |
739 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; | |
740 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
741 | ||
742 | /* Enable interrupt */ | |
743 | outb(0xff, iobase + REG_INTERRUPT); | |
744 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
745 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
746 | ||
747 | if ((id & 0x0f) == 0x03) { | |
748 | /* Disable RTS */ | |
749 | info->ctrl_reg |= REG_CONTROL_RTS; | |
750 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
751 | ||
752 | /* Set baud rate */ | |
753 | info->ctrl_reg |= 0x03; | |
754 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
755 | ||
756 | /* Enable RTS */ | |
757 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
758 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
759 | ||
760 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
761 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
762 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
763 | } | |
764 | ||
765 | /* Start the RX buffers */ | |
766 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
767 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
768 | ||
769 | /* Signal that the hardware is ready */ | |
770 | set_bit(CARD_READY, &(info->hw_state)); | |
771 | ||
772 | /* Drop TX queue */ | |
773 | skb_queue_purge(&(info->txq)); | |
774 | ||
775 | /* Control the point at which RTS is enabled */ | |
776 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); | |
777 | ||
778 | /* Timeout before it is safe to send the first HCI packet */ | |
779 | msleep(1250); | |
780 | ||
781 | /* Register HCI device */ | |
782 | if (hci_register_dev(hdev) < 0) { | |
783 | BT_ERR("Can't register HCI device"); | |
784 | info->hdev = NULL; | |
785 | hci_free_dev(hdev); | |
786 | return -ENODEV; | |
787 | } | |
788 | ||
789 | return 0; | |
790 | } | |
791 | ||
792 | ||
d664cd98 | 793 | static int bluecard_close(struct bluecard_info *info) |
1da177e4 | 794 | { |
9a017a91 | 795 | unsigned int iobase = info->p_dev->resource[0]->start; |
1da177e4 LT |
796 | struct hci_dev *hdev = info->hdev; |
797 | ||
798 | if (!hdev) | |
799 | return -ENODEV; | |
800 | ||
801 | bluecard_hci_close(hdev); | |
802 | ||
803 | clear_bit(CARD_READY, &(info->hw_state)); | |
804 | ||
805 | /* Reset card */ | |
806 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
807 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
808 | ||
809 | /* Turn FPGA off */ | |
810 | outb(0x80, iobase + 0x30); | |
811 | ||
13ea4015 | 812 | hci_unregister_dev(hdev); |
1da177e4 LT |
813 | hci_free_dev(hdev); |
814 | ||
815 | return 0; | |
816 | } | |
817 | ||
15b99ac1 | 818 | static int bluecard_probe(struct pcmcia_device *link) |
1da177e4 | 819 | { |
d664cd98 | 820 | struct bluecard_info *info; |
1da177e4 LT |
821 | |
822 | /* Create new info device */ | |
1a31c602 | 823 | info = devm_kzalloc(&link->dev, sizeof(*info), GFP_KERNEL); |
1da177e4 | 824 | if (!info) |
f8cfa618 | 825 | return -ENOMEM; |
1da177e4 | 826 | |
fba395ee | 827 | info->p_dev = link; |
1da177e4 LT |
828 | link->priv = info; |
829 | ||
1ac71e5a | 830 | link->config_flags |= CONF_ENABLE_IRQ; |
1da177e4 | 831 | |
15b99ac1 | 832 | return bluecard_config(link); |
1da177e4 LT |
833 | } |
834 | ||
835 | ||
fba395ee | 836 | static void bluecard_detach(struct pcmcia_device *link) |
1da177e4 | 837 | { |
e2d40963 | 838 | bluecard_release(link); |
1da177e4 LT |
839 | } |
840 | ||
841 | ||
15b99ac1 | 842 | static int bluecard_config(struct pcmcia_device *link) |
1da177e4 | 843 | { |
d664cd98 | 844 | struct bluecard_info *info = link->priv; |
af2b3b50 | 845 | int i, n; |
1da177e4 | 846 | |
7feabb64 | 847 | link->config_index = 0x20; |
90abdc3b DB |
848 | |
849 | link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
850 | link->resource[0]->end = 64; | |
851 | link->io_lines = 6; | |
1da177e4 LT |
852 | |
853 | for (n = 0; n < 0x400; n += 0x40) { | |
90abdc3b DB |
854 | link->resource[0]->start = n ^ 0x300; |
855 | i = pcmcia_request_io(link); | |
4c89e88b | 856 | if (i == 0) |
1da177e4 LT |
857 | break; |
858 | } | |
859 | ||
9ac3e58c | 860 | if (i != 0) |
1da177e4 | 861 | goto failed; |
1da177e4 | 862 | |
eb14120f | 863 | i = pcmcia_request_irq(link, bluecard_interrupt); |
9ac3e58c | 864 | if (i != 0) |
eb14120f | 865 | goto failed; |
1da177e4 | 866 | |
1ac71e5a | 867 | i = pcmcia_enable_device(link); |
9ac3e58c | 868 | if (i != 0) |
1da177e4 | 869 | goto failed; |
1da177e4 LT |
870 | |
871 | if (bluecard_open(info) != 0) | |
872 | goto failed; | |
873 | ||
15b99ac1 | 874 | return 0; |
1da177e4 | 875 | |
1da177e4 LT |
876 | failed: |
877 | bluecard_release(link); | |
15b99ac1 | 878 | return -ENODEV; |
1da177e4 LT |
879 | } |
880 | ||
881 | ||
fba395ee | 882 | static void bluecard_release(struct pcmcia_device *link) |
1da177e4 | 883 | { |
d664cd98 | 884 | struct bluecard_info *info = link->priv; |
1da177e4 | 885 | |
e2d40963 | 886 | bluecard_close(info); |
1da177e4 | 887 | |
d8ff9cdf | 888 | del_timer_sync(&(info->timer)); |
1da177e4 | 889 | |
fba395ee | 890 | pcmcia_disable_device(link); |
1da177e4 LT |
891 | } |
892 | ||
25f8f54f | 893 | static const struct pcmcia_device_id bluecard_ids[] = { |
7f70cb6d DB |
894 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), |
895 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), | |
896 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), | |
897 | PCMCIA_DEVICE_NULL | |
898 | }; | |
899 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); | |
900 | ||
1da177e4 LT |
901 | static struct pcmcia_driver bluecard_driver = { |
902 | .owner = THIS_MODULE, | |
2e9b981a | 903 | .name = "bluecard_cs", |
15b99ac1 | 904 | .probe = bluecard_probe, |
cc3b4866 | 905 | .remove = bluecard_detach, |
7f70cb6d | 906 | .id_table = bluecard_ids, |
1da177e4 | 907 | }; |
e0c005f4 | 908 | module_pcmcia_driver(bluecard_driver); |