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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 | dev_node_t node; |
69 | ||
70 | struct hci_dev *hdev; | |
71 | ||
72 | spinlock_t lock; /* For serializing operations */ | |
73 | struct timer_list timer; /* For LED control */ | |
74 | ||
75 | struct sk_buff_head txq; | |
76 | unsigned long tx_state; | |
77 | ||
78 | unsigned long rx_state; | |
79 | unsigned long rx_count; | |
80 | struct sk_buff *rx_skb; | |
81 | ||
82 | unsigned char ctrl_reg; | |
83 | unsigned long hw_state; /* Status of the hardware and LED control */ | |
84 | } bluecard_info_t; | |
85 | ||
86 | ||
15b99ac1 | 87 | static int bluecard_config(struct pcmcia_device *link); |
fba395ee | 88 | static void bluecard_release(struct pcmcia_device *link); |
1da177e4 | 89 | |
cc3b4866 | 90 | static void bluecard_detach(struct pcmcia_device *p_dev); |
1da177e4 | 91 | |
1da177e4 LT |
92 | |
93 | /* Default baud rate: 57600, 115200, 230400 or 460800 */ | |
94 | #define DEFAULT_BAUD_RATE 230400 | |
95 | ||
96 | ||
97 | /* Hardware states */ | |
98 | #define CARD_READY 1 | |
99 | #define CARD_HAS_PCCARD_ID 4 | |
100 | #define CARD_HAS_POWER_LED 5 | |
101 | #define CARD_HAS_ACTIVITY_LED 6 | |
102 | ||
103 | /* Transmit states */ | |
104 | #define XMIT_SENDING 1 | |
105 | #define XMIT_WAKEUP 2 | |
106 | #define XMIT_BUFFER_NUMBER 5 /* unset = buffer one, set = buffer two */ | |
107 | #define XMIT_BUF_ONE_READY 6 | |
108 | #define XMIT_BUF_TWO_READY 7 | |
109 | #define XMIT_SENDING_READY 8 | |
110 | ||
111 | /* Receiver states */ | |
112 | #define RECV_WAIT_PACKET_TYPE 0 | |
113 | #define RECV_WAIT_EVENT_HEADER 1 | |
114 | #define RECV_WAIT_ACL_HEADER 2 | |
115 | #define RECV_WAIT_SCO_HEADER 3 | |
116 | #define RECV_WAIT_DATA 4 | |
117 | ||
118 | /* Special packet types */ | |
119 | #define PKT_BAUD_RATE_57600 0x80 | |
120 | #define PKT_BAUD_RATE_115200 0x81 | |
121 | #define PKT_BAUD_RATE_230400 0x82 | |
122 | #define PKT_BAUD_RATE_460800 0x83 | |
123 | ||
124 | ||
125 | /* These are the register offsets */ | |
126 | #define REG_COMMAND 0x20 | |
127 | #define REG_INTERRUPT 0x21 | |
128 | #define REG_CONTROL 0x22 | |
129 | #define REG_RX_CONTROL 0x24 | |
130 | #define REG_CARD_RESET 0x30 | |
131 | #define REG_LED_CTRL 0x30 | |
132 | ||
133 | /* REG_COMMAND */ | |
134 | #define REG_COMMAND_TX_BUF_ONE 0x01 | |
135 | #define REG_COMMAND_TX_BUF_TWO 0x02 | |
136 | #define REG_COMMAND_RX_BUF_ONE 0x04 | |
137 | #define REG_COMMAND_RX_BUF_TWO 0x08 | |
138 | #define REG_COMMAND_RX_WIN_ONE 0x00 | |
139 | #define REG_COMMAND_RX_WIN_TWO 0x10 | |
140 | ||
141 | /* REG_CONTROL */ | |
142 | #define REG_CONTROL_BAUD_RATE_57600 0x00 | |
143 | #define REG_CONTROL_BAUD_RATE_115200 0x01 | |
144 | #define REG_CONTROL_BAUD_RATE_230400 0x02 | |
145 | #define REG_CONTROL_BAUD_RATE_460800 0x03 | |
146 | #define REG_CONTROL_RTS 0x04 | |
147 | #define REG_CONTROL_BT_ON 0x08 | |
148 | #define REG_CONTROL_BT_RESET 0x10 | |
149 | #define REG_CONTROL_BT_RES_PU 0x20 | |
150 | #define REG_CONTROL_INTERRUPT 0x40 | |
151 | #define REG_CONTROL_CARD_RESET 0x80 | |
152 | ||
153 | /* REG_RX_CONTROL */ | |
154 | #define RTS_LEVEL_SHIFT_BITS 0x02 | |
155 | ||
156 | ||
157 | ||
158 | /* ======================== LED handling routines ======================== */ | |
159 | ||
160 | ||
161 | static void bluecard_activity_led_timeout(u_long arg) | |
162 | { | |
163 | bluecard_info_t *info = (bluecard_info_t *)arg; | |
fd238232 | 164 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
165 | |
166 | if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
167 | return; | |
168 | ||
169 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { | |
170 | /* Disable activity LED */ | |
171 | outb(0x08 | 0x20, iobase + 0x30); | |
172 | } else { | |
173 | /* Disable power LED */ | |
174 | outb(0x00, iobase + 0x30); | |
175 | } | |
176 | } | |
177 | ||
178 | ||
179 | static void bluecard_enable_activity_led(bluecard_info_t *info) | |
180 | { | |
fd238232 | 181 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
182 | |
183 | if (!test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
184 | return; | |
185 | ||
186 | if (test_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state))) { | |
187 | /* Enable activity LED */ | |
188 | outb(0x10 | 0x40, iobase + 0x30); | |
189 | ||
190 | /* Stop the LED after HZ/4 */ | |
191 | mod_timer(&(info->timer), jiffies + HZ / 4); | |
192 | } else { | |
193 | /* Enable power LED */ | |
194 | outb(0x08 | 0x20, iobase + 0x30); | |
195 | ||
196 | /* Stop the LED after HZ/2 */ | |
197 | mod_timer(&(info->timer), jiffies + HZ / 2); | |
198 | } | |
199 | } | |
200 | ||
201 | ||
202 | ||
203 | /* ======================== Interrupt handling ======================== */ | |
204 | ||
205 | ||
206 | static int bluecard_write(unsigned int iobase, unsigned int offset, __u8 *buf, int len) | |
207 | { | |
208 | int i, actual; | |
209 | ||
210 | actual = (len > 15) ? 15 : len; | |
211 | ||
212 | outb_p(actual, iobase + offset); | |
213 | ||
214 | for (i = 0; i < actual; i++) | |
215 | outb_p(buf[i], iobase + offset + i + 1); | |
216 | ||
217 | return actual; | |
218 | } | |
219 | ||
220 | ||
221 | static void bluecard_write_wakeup(bluecard_info_t *info) | |
222 | { | |
223 | if (!info) { | |
224 | BT_ERR("Unknown device"); | |
225 | return; | |
226 | } | |
227 | ||
228 | if (!test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
229 | return; | |
230 | ||
231 | if (test_and_set_bit(XMIT_SENDING, &(info->tx_state))) { | |
232 | set_bit(XMIT_WAKEUP, &(info->tx_state)); | |
233 | return; | |
234 | } | |
235 | ||
236 | do { | |
fd238232 | 237 | register unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
238 | register unsigned int offset; |
239 | register unsigned char command; | |
240 | register unsigned long ready_bit; | |
241 | register struct sk_buff *skb; | |
242 | register int len; | |
243 | ||
244 | clear_bit(XMIT_WAKEUP, &(info->tx_state)); | |
245 | ||
e2d40963 | 246 | if (!pcmcia_dev_present(info->p_dev)) |
1da177e4 LT |
247 | return; |
248 | ||
249 | if (test_bit(XMIT_BUFFER_NUMBER, &(info->tx_state))) { | |
250 | if (!test_bit(XMIT_BUF_TWO_READY, &(info->tx_state))) | |
251 | break; | |
252 | offset = 0x10; | |
253 | command = REG_COMMAND_TX_BUF_TWO; | |
254 | ready_bit = XMIT_BUF_TWO_READY; | |
255 | } else { | |
256 | if (!test_bit(XMIT_BUF_ONE_READY, &(info->tx_state))) | |
257 | break; | |
258 | offset = 0x00; | |
259 | command = REG_COMMAND_TX_BUF_ONE; | |
260 | ready_bit = XMIT_BUF_ONE_READY; | |
261 | } | |
262 | ||
263 | if (!(skb = skb_dequeue(&(info->txq)))) | |
264 | break; | |
265 | ||
0d48d939 | 266 | if (bt_cb(skb)->pkt_type & 0x80) { |
1da177e4 LT |
267 | /* Disable RTS */ |
268 | info->ctrl_reg |= REG_CONTROL_RTS; | |
269 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
270 | } | |
271 | ||
272 | /* Activate LED */ | |
273 | bluecard_enable_activity_led(info); | |
274 | ||
275 | /* Send frame */ | |
276 | len = bluecard_write(iobase, offset, skb->data, skb->len); | |
277 | ||
278 | /* Tell the FPGA to send the data */ | |
279 | outb_p(command, iobase + REG_COMMAND); | |
280 | ||
281 | /* Mark the buffer as dirty */ | |
282 | clear_bit(ready_bit, &(info->tx_state)); | |
283 | ||
0d48d939 | 284 | if (bt_cb(skb)->pkt_type & 0x80) { |
1da177e4 LT |
285 | DECLARE_WAIT_QUEUE_HEAD(wq); |
286 | DEFINE_WAIT(wait); | |
287 | ||
288 | unsigned char baud_reg; | |
289 | ||
0d48d939 | 290 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
291 | case PKT_BAUD_RATE_460800: |
292 | baud_reg = REG_CONTROL_BAUD_RATE_460800; | |
293 | break; | |
294 | case PKT_BAUD_RATE_230400: | |
295 | baud_reg = REG_CONTROL_BAUD_RATE_230400; | |
296 | break; | |
297 | case PKT_BAUD_RATE_115200: | |
298 | baud_reg = REG_CONTROL_BAUD_RATE_115200; | |
299 | break; | |
300 | case PKT_BAUD_RATE_57600: | |
301 | /* Fall through... */ | |
302 | default: | |
303 | baud_reg = REG_CONTROL_BAUD_RATE_57600; | |
304 | break; | |
305 | } | |
306 | ||
307 | /* Wait until the command reaches the baseband */ | |
308 | prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); | |
309 | schedule_timeout(HZ/10); | |
310 | finish_wait(&wq, &wait); | |
311 | ||
312 | /* Set baud on baseband */ | |
313 | info->ctrl_reg &= ~0x03; | |
314 | info->ctrl_reg |= baud_reg; | |
315 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
316 | ||
317 | /* Enable RTS */ | |
318 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
319 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
320 | ||
321 | /* Wait before the next HCI packet can be send */ | |
322 | prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE); | |
323 | schedule_timeout(HZ); | |
324 | finish_wait(&wq, &wait); | |
325 | } | |
326 | ||
327 | if (len == skb->len) { | |
328 | kfree_skb(skb); | |
329 | } else { | |
330 | skb_pull(skb, len); | |
331 | skb_queue_head(&(info->txq), skb); | |
332 | } | |
333 | ||
334 | info->hdev->stat.byte_tx += len; | |
335 | ||
336 | /* Change buffer */ | |
337 | change_bit(XMIT_BUFFER_NUMBER, &(info->tx_state)); | |
338 | ||
339 | } while (test_bit(XMIT_WAKEUP, &(info->tx_state))); | |
340 | ||
341 | clear_bit(XMIT_SENDING, &(info->tx_state)); | |
342 | } | |
343 | ||
344 | ||
345 | static int bluecard_read(unsigned int iobase, unsigned int offset, __u8 *buf, int size) | |
346 | { | |
347 | int i, n, len; | |
348 | ||
349 | outb(REG_COMMAND_RX_WIN_ONE, iobase + REG_COMMAND); | |
350 | ||
351 | len = inb(iobase + offset); | |
352 | n = 0; | |
353 | i = 1; | |
354 | ||
355 | while (n < len) { | |
356 | ||
357 | if (i == 16) { | |
358 | outb(REG_COMMAND_RX_WIN_TWO, iobase + REG_COMMAND); | |
359 | i = 0; | |
360 | } | |
361 | ||
362 | buf[n] = inb(iobase + offset + i); | |
363 | ||
364 | n++; | |
365 | i++; | |
366 | ||
367 | } | |
368 | ||
369 | return len; | |
370 | } | |
371 | ||
372 | ||
373 | static void bluecard_receive(bluecard_info_t *info, unsigned int offset) | |
374 | { | |
375 | unsigned int iobase; | |
376 | unsigned char buf[31]; | |
377 | int i, len; | |
378 | ||
379 | if (!info) { | |
380 | BT_ERR("Unknown device"); | |
381 | return; | |
382 | } | |
383 | ||
fd238232 | 384 | iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
385 | |
386 | if (test_bit(XMIT_SENDING_READY, &(info->tx_state))) | |
387 | bluecard_enable_activity_led(info); | |
388 | ||
389 | len = bluecard_read(iobase, offset, buf, sizeof(buf)); | |
390 | ||
391 | for (i = 0; i < len; i++) { | |
392 | ||
393 | /* Allocate packet */ | |
394 | if (info->rx_skb == NULL) { | |
395 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
396 | info->rx_count = 0; | |
397 | if (!(info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
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 | ||
405 | info->rx_skb->dev = (void *) info->hdev; | |
0d48d939 | 406 | bt_cb(info->rx_skb)->pkt_type = buf[i]; |
1da177e4 | 407 | |
0d48d939 | 408 | switch (bt_cb(info->rx_skb)->pkt_type) { |
1da177e4 LT |
409 | |
410 | case 0x00: | |
411 | /* init packet */ | |
412 | if (offset != 0x00) { | |
413 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
414 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
415 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
416 | bluecard_write_wakeup(info); | |
417 | } | |
418 | ||
419 | kfree_skb(info->rx_skb); | |
420 | info->rx_skb = NULL; | |
421 | break; | |
422 | ||
423 | case HCI_EVENT_PKT: | |
424 | info->rx_state = RECV_WAIT_EVENT_HEADER; | |
425 | info->rx_count = HCI_EVENT_HDR_SIZE; | |
426 | break; | |
427 | ||
428 | case HCI_ACLDATA_PKT: | |
429 | info->rx_state = RECV_WAIT_ACL_HEADER; | |
430 | info->rx_count = HCI_ACL_HDR_SIZE; | |
431 | break; | |
432 | ||
433 | case HCI_SCODATA_PKT: | |
434 | info->rx_state = RECV_WAIT_SCO_HEADER; | |
435 | info->rx_count = HCI_SCO_HDR_SIZE; | |
436 | break; | |
437 | ||
438 | default: | |
439 | /* unknown packet */ | |
0d48d939 | 440 | BT_ERR("Unknown HCI packet with type 0x%02x received", bt_cb(info->rx_skb)->pkt_type); |
1da177e4 LT |
441 | info->hdev->stat.err_rx++; |
442 | ||
443 | kfree_skb(info->rx_skb); | |
444 | info->rx_skb = NULL; | |
445 | break; | |
446 | ||
447 | } | |
448 | ||
449 | } else { | |
450 | ||
451 | *skb_put(info->rx_skb, 1) = buf[i]; | |
452 | info->rx_count--; | |
453 | ||
454 | if (info->rx_count == 0) { | |
455 | ||
456 | int dlen; | |
457 | struct hci_event_hdr *eh; | |
458 | struct hci_acl_hdr *ah; | |
459 | struct hci_sco_hdr *sh; | |
460 | ||
461 | switch (info->rx_state) { | |
462 | ||
463 | case RECV_WAIT_EVENT_HEADER: | |
464 | eh = (struct hci_event_hdr *)(info->rx_skb->data); | |
465 | info->rx_state = RECV_WAIT_DATA; | |
466 | info->rx_count = eh->plen; | |
467 | break; | |
468 | ||
469 | case RECV_WAIT_ACL_HEADER: | |
470 | ah = (struct hci_acl_hdr *)(info->rx_skb->data); | |
471 | dlen = __le16_to_cpu(ah->dlen); | |
472 | info->rx_state = RECV_WAIT_DATA; | |
473 | info->rx_count = dlen; | |
474 | break; | |
475 | ||
476 | case RECV_WAIT_SCO_HEADER: | |
477 | sh = (struct hci_sco_hdr *)(info->rx_skb->data); | |
478 | info->rx_state = RECV_WAIT_DATA; | |
479 | info->rx_count = sh->dlen; | |
480 | break; | |
481 | ||
482 | case RECV_WAIT_DATA: | |
483 | hci_recv_frame(info->rx_skb); | |
484 | info->rx_skb = NULL; | |
485 | break; | |
486 | ||
487 | } | |
488 | ||
489 | } | |
490 | ||
491 | } | |
492 | ||
493 | ||
494 | } | |
495 | ||
496 | info->hdev->stat.byte_rx += len; | |
497 | } | |
498 | ||
499 | ||
500 | static irqreturn_t bluecard_interrupt(int irq, void *dev_inst, struct pt_regs *regs) | |
501 | { | |
502 | bluecard_info_t *info = dev_inst; | |
503 | unsigned int iobase; | |
504 | unsigned char reg; | |
505 | ||
506 | if (!info || !info->hdev) { | |
507 | BT_ERR("Call of irq %d for unknown device", irq); | |
508 | return IRQ_NONE; | |
509 | } | |
510 | ||
511 | if (!test_bit(CARD_READY, &(info->hw_state))) | |
512 | return IRQ_HANDLED; | |
513 | ||
fd238232 | 514 | iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
515 | |
516 | spin_lock(&(info->lock)); | |
517 | ||
518 | /* Disable interrupt */ | |
519 | info->ctrl_reg &= ~REG_CONTROL_INTERRUPT; | |
520 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
521 | ||
522 | reg = inb(iobase + REG_INTERRUPT); | |
523 | ||
524 | if ((reg != 0x00) && (reg != 0xff)) { | |
525 | ||
526 | if (reg & 0x04) { | |
527 | bluecard_receive(info, 0x00); | |
528 | outb(0x04, iobase + REG_INTERRUPT); | |
529 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
530 | } | |
531 | ||
532 | if (reg & 0x08) { | |
533 | bluecard_receive(info, 0x10); | |
534 | outb(0x08, iobase + REG_INTERRUPT); | |
535 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
536 | } | |
537 | ||
538 | if (reg & 0x01) { | |
539 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
540 | outb(0x01, iobase + REG_INTERRUPT); | |
541 | bluecard_write_wakeup(info); | |
542 | } | |
543 | ||
544 | if (reg & 0x02) { | |
545 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
546 | outb(0x02, iobase + REG_INTERRUPT); | |
547 | bluecard_write_wakeup(info); | |
548 | } | |
549 | ||
550 | } | |
551 | ||
552 | /* Enable interrupt */ | |
553 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
554 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
555 | ||
556 | spin_unlock(&(info->lock)); | |
557 | ||
558 | return IRQ_HANDLED; | |
559 | } | |
560 | ||
561 | ||
562 | ||
563 | /* ======================== Device specific HCI commands ======================== */ | |
564 | ||
565 | ||
566 | static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) | |
567 | { | |
568 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
569 | struct sk_buff *skb; | |
570 | ||
571 | /* Ericsson baud rate command */ | |
572 | unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; | |
573 | ||
574 | if (!(skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC))) { | |
575 | BT_ERR("Can't allocate mem for new packet"); | |
576 | return -1; | |
577 | } | |
578 | ||
579 | switch (baud) { | |
580 | case 460800: | |
581 | cmd[4] = 0x00; | |
0d48d939 | 582 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_460800; |
1da177e4 LT |
583 | break; |
584 | case 230400: | |
585 | cmd[4] = 0x01; | |
0d48d939 | 586 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_230400; |
1da177e4 LT |
587 | break; |
588 | case 115200: | |
589 | cmd[4] = 0x02; | |
0d48d939 | 590 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_115200; |
1da177e4 LT |
591 | break; |
592 | case 57600: | |
593 | /* Fall through... */ | |
594 | default: | |
595 | cmd[4] = 0x03; | |
0d48d939 | 596 | bt_cb(skb)->pkt_type = PKT_BAUD_RATE_57600; |
1da177e4 LT |
597 | break; |
598 | } | |
599 | ||
600 | memcpy(skb_put(skb, sizeof(cmd)), cmd, sizeof(cmd)); | |
601 | ||
602 | skb_queue_tail(&(info->txq), skb); | |
603 | ||
604 | bluecard_write_wakeup(info); | |
605 | ||
606 | return 0; | |
607 | } | |
608 | ||
609 | ||
610 | ||
611 | /* ======================== HCI interface ======================== */ | |
612 | ||
613 | ||
614 | static int bluecard_hci_flush(struct hci_dev *hdev) | |
615 | { | |
616 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
617 | ||
618 | /* Drop TX queue */ | |
619 | skb_queue_purge(&(info->txq)); | |
620 | ||
621 | return 0; | |
622 | } | |
623 | ||
624 | ||
625 | static int bluecard_hci_open(struct hci_dev *hdev) | |
626 | { | |
627 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
fd238232 | 628 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
629 | |
630 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) | |
631 | bluecard_hci_set_baud_rate(hdev, DEFAULT_BAUD_RATE); | |
632 | ||
633 | if (test_and_set_bit(HCI_RUNNING, &(hdev->flags))) | |
634 | return 0; | |
635 | ||
636 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { | |
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 | { | |
647 | bluecard_info_t *info = (bluecard_info_t *)(hdev->driver_data); | |
fd238232 | 648 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
649 | |
650 | if (!test_and_clear_bit(HCI_RUNNING, &(hdev->flags))) | |
651 | return 0; | |
652 | ||
653 | bluecard_hci_flush(hdev); | |
654 | ||
655 | if (test_bit(CARD_HAS_PCCARD_ID, &(info->hw_state))) { | |
656 | /* Disable LED */ | |
657 | outb(0x00, iobase + 0x30); | |
658 | } | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
663 | ||
664 | static int bluecard_hci_send_frame(struct sk_buff *skb) | |
665 | { | |
666 | bluecard_info_t *info; | |
667 | struct hci_dev *hdev = (struct hci_dev *)(skb->dev); | |
668 | ||
669 | if (!hdev) { | |
670 | BT_ERR("Frame for unknown HCI device (hdev=NULL)"); | |
671 | return -ENODEV; | |
672 | } | |
673 | ||
674 | info = (bluecard_info_t *)(hdev->driver_data); | |
675 | ||
0d48d939 | 676 | switch (bt_cb(skb)->pkt_type) { |
1da177e4 LT |
677 | case HCI_COMMAND_PKT: |
678 | hdev->stat.cmd_tx++; | |
679 | break; | |
680 | case HCI_ACLDATA_PKT: | |
681 | hdev->stat.acl_tx++; | |
682 | break; | |
683 | case HCI_SCODATA_PKT: | |
684 | hdev->stat.sco_tx++; | |
685 | break; | |
686 | }; | |
687 | ||
688 | /* Prepend skb with frame type */ | |
0d48d939 | 689 | memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1); |
1da177e4 LT |
690 | skb_queue_tail(&(info->txq), skb); |
691 | ||
692 | bluecard_write_wakeup(info); | |
693 | ||
694 | return 0; | |
695 | } | |
696 | ||
697 | ||
698 | static void bluecard_hci_destruct(struct hci_dev *hdev) | |
699 | { | |
700 | } | |
701 | ||
702 | ||
703 | static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg) | |
704 | { | |
705 | return -ENOIOCTLCMD; | |
706 | } | |
707 | ||
708 | ||
709 | ||
710 | /* ======================== Card services HCI interaction ======================== */ | |
711 | ||
712 | ||
713 | static int bluecard_open(bluecard_info_t *info) | |
714 | { | |
fd238232 | 715 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
716 | struct hci_dev *hdev; |
717 | unsigned char id; | |
718 | ||
719 | spin_lock_init(&(info->lock)); | |
720 | ||
721 | init_timer(&(info->timer)); | |
722 | info->timer.function = &bluecard_activity_led_timeout; | |
723 | info->timer.data = (u_long)info; | |
724 | ||
725 | skb_queue_head_init(&(info->txq)); | |
726 | ||
727 | info->rx_state = RECV_WAIT_PACKET_TYPE; | |
728 | info->rx_count = 0; | |
729 | info->rx_skb = NULL; | |
730 | ||
731 | /* Initialize HCI device */ | |
732 | hdev = hci_alloc_dev(); | |
733 | if (!hdev) { | |
734 | BT_ERR("Can't allocate HCI device"); | |
735 | return -ENOMEM; | |
736 | } | |
737 | ||
738 | info->hdev = hdev; | |
739 | ||
740 | hdev->type = HCI_PCCARD; | |
741 | hdev->driver_data = info; | |
27d35284 | 742 | SET_HCIDEV_DEV(hdev, &info->p_dev->dev); |
1da177e4 LT |
743 | |
744 | hdev->open = bluecard_hci_open; | |
745 | hdev->close = bluecard_hci_close; | |
746 | hdev->flush = bluecard_hci_flush; | |
747 | hdev->send = bluecard_hci_send_frame; | |
748 | hdev->destruct = bluecard_hci_destruct; | |
749 | hdev->ioctl = bluecard_hci_ioctl; | |
750 | ||
751 | hdev->owner = THIS_MODULE; | |
752 | ||
753 | id = inb(iobase + 0x30); | |
754 | ||
755 | if ((id & 0x0f) == 0x02) | |
756 | set_bit(CARD_HAS_PCCARD_ID, &(info->hw_state)); | |
757 | ||
758 | if (id & 0x10) | |
759 | set_bit(CARD_HAS_POWER_LED, &(info->hw_state)); | |
760 | ||
761 | if (id & 0x20) | |
762 | set_bit(CARD_HAS_ACTIVITY_LED, &(info->hw_state)); | |
763 | ||
764 | /* Reset card */ | |
765 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
766 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
767 | ||
768 | /* Turn FPGA off */ | |
769 | outb(0x80, iobase + 0x30); | |
770 | ||
771 | /* Wait some time */ | |
772 | msleep(10); | |
773 | ||
774 | /* Turn FPGA on */ | |
775 | outb(0x00, iobase + 0x30); | |
776 | ||
777 | /* Activate card */ | |
778 | info->ctrl_reg = REG_CONTROL_BT_ON | REG_CONTROL_BT_RES_PU; | |
779 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
780 | ||
781 | /* Enable interrupt */ | |
782 | outb(0xff, iobase + REG_INTERRUPT); | |
783 | info->ctrl_reg |= REG_CONTROL_INTERRUPT; | |
784 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
785 | ||
786 | if ((id & 0x0f) == 0x03) { | |
787 | /* Disable RTS */ | |
788 | info->ctrl_reg |= REG_CONTROL_RTS; | |
789 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
790 | ||
791 | /* Set baud rate */ | |
792 | info->ctrl_reg |= 0x03; | |
793 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
794 | ||
795 | /* Enable RTS */ | |
796 | info->ctrl_reg &= ~REG_CONTROL_RTS; | |
797 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
798 | ||
799 | set_bit(XMIT_BUF_ONE_READY, &(info->tx_state)); | |
800 | set_bit(XMIT_BUF_TWO_READY, &(info->tx_state)); | |
801 | set_bit(XMIT_SENDING_READY, &(info->tx_state)); | |
802 | } | |
803 | ||
804 | /* Start the RX buffers */ | |
805 | outb(REG_COMMAND_RX_BUF_ONE, iobase + REG_COMMAND); | |
806 | outb(REG_COMMAND_RX_BUF_TWO, iobase + REG_COMMAND); | |
807 | ||
808 | /* Signal that the hardware is ready */ | |
809 | set_bit(CARD_READY, &(info->hw_state)); | |
810 | ||
811 | /* Drop TX queue */ | |
812 | skb_queue_purge(&(info->txq)); | |
813 | ||
814 | /* Control the point at which RTS is enabled */ | |
815 | outb((0x0f << RTS_LEVEL_SHIFT_BITS) | 1, iobase + REG_RX_CONTROL); | |
816 | ||
817 | /* Timeout before it is safe to send the first HCI packet */ | |
818 | msleep(1250); | |
819 | ||
820 | /* Register HCI device */ | |
821 | if (hci_register_dev(hdev) < 0) { | |
822 | BT_ERR("Can't register HCI device"); | |
823 | info->hdev = NULL; | |
824 | hci_free_dev(hdev); | |
825 | return -ENODEV; | |
826 | } | |
827 | ||
828 | return 0; | |
829 | } | |
830 | ||
831 | ||
832 | static int bluecard_close(bluecard_info_t *info) | |
833 | { | |
fd238232 | 834 | unsigned int iobase = info->p_dev->io.BasePort1; |
1da177e4 LT |
835 | struct hci_dev *hdev = info->hdev; |
836 | ||
837 | if (!hdev) | |
838 | return -ENODEV; | |
839 | ||
840 | bluecard_hci_close(hdev); | |
841 | ||
842 | clear_bit(CARD_READY, &(info->hw_state)); | |
843 | ||
844 | /* Reset card */ | |
845 | info->ctrl_reg = REG_CONTROL_BT_RESET | REG_CONTROL_CARD_RESET; | |
846 | outb(info->ctrl_reg, iobase + REG_CONTROL); | |
847 | ||
848 | /* Turn FPGA off */ | |
849 | outb(0x80, iobase + 0x30); | |
850 | ||
851 | if (hci_unregister_dev(hdev) < 0) | |
852 | BT_ERR("Can't unregister HCI device %s", hdev->name); | |
853 | ||
854 | hci_free_dev(hdev); | |
855 | ||
856 | return 0; | |
857 | } | |
858 | ||
15b99ac1 | 859 | static int bluecard_probe(struct pcmcia_device *link) |
1da177e4 LT |
860 | { |
861 | bluecard_info_t *info; | |
1da177e4 LT |
862 | |
863 | /* Create new info device */ | |
089b1dbb | 864 | info = kzalloc(sizeof(*info), GFP_KERNEL); |
1da177e4 | 865 | if (!info) |
f8cfa618 | 866 | return -ENOMEM; |
1da177e4 | 867 | |
fba395ee | 868 | info->p_dev = link; |
1da177e4 LT |
869 | link->priv = info; |
870 | ||
871 | link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; | |
872 | link->io.NumPorts1 = 8; | |
873 | link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT; | |
874 | link->irq.IRQInfo1 = IRQ_LEVEL_ID; | |
875 | ||
876 | link->irq.Handler = bluecard_interrupt; | |
877 | link->irq.Instance = info; | |
878 | ||
879 | link->conf.Attributes = CONF_ENABLE_IRQ; | |
1da177e4 LT |
880 | link->conf.IntType = INT_MEMORY_AND_IO; |
881 | ||
15b99ac1 | 882 | return bluecard_config(link); |
1da177e4 LT |
883 | } |
884 | ||
885 | ||
fba395ee | 886 | static void bluecard_detach(struct pcmcia_device *link) |
1da177e4 LT |
887 | { |
888 | bluecard_info_t *info = link->priv; | |
1da177e4 | 889 | |
e2d40963 | 890 | bluecard_release(link); |
1da177e4 LT |
891 | kfree(info); |
892 | } | |
893 | ||
894 | ||
fba395ee | 895 | static int first_tuple(struct pcmcia_device *handle, tuple_t *tuple, cisparse_t *parse) |
1da177e4 LT |
896 | { |
897 | int i; | |
898 | ||
899 | i = pcmcia_get_first_tuple(handle, tuple); | |
900 | if (i != CS_SUCCESS) | |
901 | return CS_NO_MORE_ITEMS; | |
902 | ||
903 | i = pcmcia_get_tuple_data(handle, tuple); | |
904 | if (i != CS_SUCCESS) | |
905 | return i; | |
906 | ||
907 | return pcmcia_parse_tuple(handle, tuple, parse); | |
908 | } | |
909 | ||
15b99ac1 | 910 | static int bluecard_config(struct pcmcia_device *link) |
1da177e4 | 911 | { |
1da177e4 LT |
912 | bluecard_info_t *info = link->priv; |
913 | tuple_t tuple; | |
914 | u_short buf[256]; | |
915 | cisparse_t parse; | |
1da177e4 LT |
916 | int i, n, last_ret, last_fn; |
917 | ||
918 | tuple.TupleData = (cisdata_t *)buf; | |
919 | tuple.TupleOffset = 0; | |
920 | tuple.TupleDataMax = 255; | |
921 | tuple.Attributes = 0; | |
922 | ||
923 | /* Get configuration register information */ | |
924 | tuple.DesiredTuple = CISTPL_CONFIG; | |
fba395ee | 925 | last_ret = first_tuple(link, &tuple, &parse); |
1da177e4 LT |
926 | if (last_ret != CS_SUCCESS) { |
927 | last_fn = ParseTuple; | |
928 | goto cs_failed; | |
929 | } | |
930 | link->conf.ConfigBase = parse.config.base; | |
931 | link->conf.Present = parse.config.rmask[0]; | |
932 | ||
1da177e4 LT |
933 | link->conf.ConfigIndex = 0x20; |
934 | link->io.NumPorts1 = 64; | |
935 | link->io.IOAddrLines = 6; | |
936 | ||
937 | for (n = 0; n < 0x400; n += 0x40) { | |
938 | link->io.BasePort1 = n ^ 0x300; | |
fba395ee | 939 | i = pcmcia_request_io(link, &link->io); |
1da177e4 LT |
940 | if (i == CS_SUCCESS) |
941 | break; | |
942 | } | |
943 | ||
944 | if (i != CS_SUCCESS) { | |
fba395ee | 945 | cs_error(link, RequestIO, i); |
1da177e4 LT |
946 | goto failed; |
947 | } | |
948 | ||
fba395ee | 949 | i = pcmcia_request_irq(link, &link->irq); |
1da177e4 | 950 | if (i != CS_SUCCESS) { |
fba395ee | 951 | cs_error(link, RequestIRQ, i); |
1da177e4 LT |
952 | link->irq.AssignedIRQ = 0; |
953 | } | |
954 | ||
fba395ee | 955 | i = pcmcia_request_configuration(link, &link->conf); |
1da177e4 | 956 | if (i != CS_SUCCESS) { |
fba395ee | 957 | cs_error(link, RequestConfiguration, i); |
1da177e4 LT |
958 | goto failed; |
959 | } | |
960 | ||
961 | if (bluecard_open(info) != 0) | |
962 | goto failed; | |
963 | ||
964 | strcpy(info->node.dev_name, info->hdev->name); | |
fd238232 | 965 | link->dev_node = &info->node; |
1da177e4 | 966 | |
15b99ac1 | 967 | return 0; |
1da177e4 LT |
968 | |
969 | cs_failed: | |
fba395ee | 970 | cs_error(link, last_fn, last_ret); |
1da177e4 LT |
971 | |
972 | failed: | |
973 | bluecard_release(link); | |
15b99ac1 | 974 | return -ENODEV; |
1da177e4 LT |
975 | } |
976 | ||
977 | ||
fba395ee | 978 | static void bluecard_release(struct pcmcia_device *link) |
1da177e4 LT |
979 | { |
980 | bluecard_info_t *info = link->priv; | |
981 | ||
e2d40963 | 982 | bluecard_close(info); |
1da177e4 LT |
983 | |
984 | del_timer(&(info->timer)); | |
985 | ||
fba395ee | 986 | pcmcia_disable_device(link); |
1da177e4 LT |
987 | } |
988 | ||
7f70cb6d DB |
989 | static struct pcmcia_device_id bluecard_ids[] = { |
990 | PCMCIA_DEVICE_PROD_ID12("BlueCard", "LSE041", 0xbaf16fbf, 0x657cc15e), | |
991 | PCMCIA_DEVICE_PROD_ID12("BTCFCARD", "LSE139", 0xe3987764, 0x2524b59c), | |
992 | PCMCIA_DEVICE_PROD_ID12("WSS", "LSE039", 0x0a0736ec, 0x24e6dfab), | |
993 | PCMCIA_DEVICE_NULL | |
994 | }; | |
995 | MODULE_DEVICE_TABLE(pcmcia, bluecard_ids); | |
996 | ||
1da177e4 LT |
997 | static struct pcmcia_driver bluecard_driver = { |
998 | .owner = THIS_MODULE, | |
999 | .drv = { | |
1000 | .name = "bluecard_cs", | |
1001 | }, | |
15b99ac1 | 1002 | .probe = bluecard_probe, |
cc3b4866 | 1003 | .remove = bluecard_detach, |
7f70cb6d | 1004 | .id_table = bluecard_ids, |
1da177e4 LT |
1005 | }; |
1006 | ||
1007 | static int __init init_bluecard_cs(void) | |
1008 | { | |
1009 | return pcmcia_register_driver(&bluecard_driver); | |
1010 | } | |
1011 | ||
1012 | ||
1013 | static void __exit exit_bluecard_cs(void) | |
1014 | { | |
1015 | pcmcia_unregister_driver(&bluecard_driver); | |
1da177e4 LT |
1016 | } |
1017 | ||
1018 | module_init(init_bluecard_cs); | |
1019 | module_exit(exit_bluecard_cs); |