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s390: Fix buggy assignment
[qemu.git] / hw / usb-bt.c
blob56d1a6ce4a6c5ccf5f7185bdb25a4a2e94d9e4f8
1 /*
2 * QEMU Bluetooth HCI USB Transport Layer v1.0
3 *
4 * Copyright (C) 2007 OpenMoko, Inc.
5 * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 or
10 * (at your option) version 3 of the License.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "qemu-common.h"
22 #include "usb.h"
23 #include "net.h"
24 #include "bt.h"
25
26 struct USBBtState {
27 USBDevice dev;
28 struct HCIInfo *hci;
29
30 int altsetting;
31 int config;
32
33 #define CFIFO_LEN_MASK 255
34 #define DFIFO_LEN_MASK 4095
35 struct usb_hci_in_fifo_s {
36 uint8_t data[(DFIFO_LEN_MASK + 1) * 2];
37 struct {
38 uint8_t *data;
39 int len;
40 } fifo[CFIFO_LEN_MASK + 1];
41 int dstart, dlen, dsize, start, len;
42 } evt, acl, sco;
43
44 struct usb_hci_out_fifo_s {
45 uint8_t data[4096];
46 int len;
47 } outcmd, outacl, outsco;
48 };
49
50 #define USB_EVT_EP 1
51 #define USB_ACL_EP 2
52 #define USB_SCO_EP 3
53
54 static const uint8_t qemu_bt_dev_descriptor[] = {
55 0x12, /* u8 bLength; */
56 USB_DT_DEVICE, /* u8 bDescriptorType; Device */
57 0x10, 0x01, /* u16 bcdUSB; v1.10 */
58
59 0xe0, /* u8 bDeviceClass; Wireless */
60 0x01, /* u8 bDeviceSubClass; Radio Frequency */
61 0x01, /* u8 bDeviceProtocol; Bluetooth */
62 0x40, /* u8 bMaxPacketSize0; 64 Bytes */
63
64 0x12, 0x0a, /* u16 idVendor; */
65 0x01, 0x00, /* u16 idProduct; Bluetooth Dongle (HCI mode) */
66 0x58, 0x19, /* u16 bcdDevice; (some devices have 0x48, 0x02) */
67
68 0x00, /* u8 iManufacturer; */
69 0x00, /* u8 iProduct; */
70 0x00, /* u8 iSerialNumber; */
71 0x01, /* u8 bNumConfigurations; */
72 };
73
74 static const uint8_t qemu_bt_config_descriptor[] = {
75 /* one configuration */
76 0x09, /* u8 bLength; */
77 USB_DT_CONFIG, /* u8 bDescriptorType; */
78 0xb1, 0x00, /* u16 wTotalLength; */
79 0x02, /* u8 bNumInterfaces; (2) */
80 0x01, /* u8 bConfigurationValue; */
81 0x00, /* u8 iConfiguration; */
82 0xc0, /* u8 bmAttributes;
83 Bit 7: must be set,
84 6: Self-powered,
85 5: Remote wakeup,
86 4..0: resvd */
87 0x00, /* u8 MaxPower; */
88
89 /* USB 1.1:
90 * USB 2.0, single TT organization (mandatory):
91 * one interface, protocol 0
92 *
93 * USB 2.0, multiple TT organization (optional):
94 * two interfaces, protocols 1 (like single TT)
95 * and 2 (multiple TT mode) ... config is
96 * sometimes settable
97 * NOT IMPLEMENTED
98 */
99
100 /* interface one */
101 0x09, /* u8 if_bLength; */
102 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
103 0x00, /* u8 if_bInterfaceNumber; */
104 0x00, /* u8 if_bAlternateSetting; */
105 0x03, /* u8 if_bNumEndpoints; */
106 0xe0, /* u8 if_bInterfaceClass; Wireless */
107 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
108 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
109 0x00, /* u8 if_iInterface; */
110
111 /* endpoint one */
112 0x07, /* u8 ep_bLength; */
113 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
114 USB_DIR_IN | USB_EVT_EP, /* u8 ep_bEndpointAddress; */
115 0x03, /* u8 ep_bmAttributes; Interrupt */
116 0x10, 0x00, /* u16 ep_wMaxPacketSize; */
117 0x02, /* u8 ep_bInterval; */
118
119 /* endpoint two */
120 0x07, /* u8 ep_bLength; */
121 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
122 USB_DIR_OUT | USB_ACL_EP, /* u8 ep_bEndpointAddress; */
123 0x02, /* u8 ep_bmAttributes; Bulk */
124 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
125 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
126
127 /* endpoint three */
128 0x07, /* u8 ep_bLength; */
129 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
130 USB_DIR_IN | USB_ACL_EP, /* u8 ep_bEndpointAddress; */
131 0x02, /* u8 ep_bmAttributes; Bulk */
132 0x40, 0x00, /* u16 ep_wMaxPacketSize; */
133 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
134
135 /* interface two setting one */
136 0x09, /* u8 if_bLength; */
137 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
138 0x01, /* u8 if_bInterfaceNumber; */
139 0x00, /* u8 if_bAlternateSetting; */
140 0x02, /* u8 if_bNumEndpoints; */
141 0xe0, /* u8 if_bInterfaceClass; Wireless */
142 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
143 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
144 0x00, /* u8 if_iInterface; */
145
146 /* endpoint one */
147 0x07, /* u8 ep_bLength; */
148 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
149 USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
150 0x01, /* u8 ep_bmAttributes; Isochronous */
151 0x00, 0x00, /* u16 ep_wMaxPacketSize; */
152 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
153
154 /* endpoint two */
155 0x07, /* u8 ep_bLength; */
156 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
157 USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
158 0x01, /* u8 ep_bmAttributes; Isochronous */
159 0x00, 0x00, /* u16 ep_wMaxPacketSize; */
160 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
161
162 /* interface two setting two */
163 0x09, /* u8 if_bLength; */
164 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
165 0x01, /* u8 if_bInterfaceNumber; */
166 0x01, /* u8 if_bAlternateSetting; */
167 0x02, /* u8 if_bNumEndpoints; */
168 0xe0, /* u8 if_bInterfaceClass; Wireless */
169 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
170 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
171 0x00, /* u8 if_iInterface; */
172
173 /* endpoint one */
174 0x07, /* u8 ep_bLength; */
175 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
176 USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
177 0x01, /* u8 ep_bmAttributes; Isochronous */
178 0x09, 0x00, /* u16 ep_wMaxPacketSize; */
179 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
180
181 /* endpoint two */
182 0x07, /* u8 ep_bLength; */
183 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
184 USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
185 0x01, /* u8 ep_bmAttributes; Isochronous */
186 0x09, 0x00, /* u16 ep_wMaxPacketSize; */
187 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
188
189 /* interface two setting three */
190 0x09, /* u8 if_bLength; */
191 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
192 0x01, /* u8 if_bInterfaceNumber; */
193 0x02, /* u8 if_bAlternateSetting; */
194 0x02, /* u8 if_bNumEndpoints; */
195 0xe0, /* u8 if_bInterfaceClass; Wireless */
196 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
197 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
198 0x00, /* u8 if_iInterface; */
199
200 /* endpoint one */
201 0x07, /* u8 ep_bLength; */
202 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
203 USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
204 0x01, /* u8 ep_bmAttributes; Isochronous */
205 0x11, 0x00, /* u16 ep_wMaxPacketSize; */
206 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
207
208 /* endpoint two */
209 0x07, /* u8 ep_bLength; */
210 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
211 USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
212 0x01, /* u8 ep_bmAttributes; Isochronous */
213 0x11, 0x00, /* u16 ep_wMaxPacketSize; */
214 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
215
216 /* interface two setting four */
217 0x09, /* u8 if_bLength; */
218 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
219 0x01, /* u8 if_bInterfaceNumber; */
220 0x03, /* u8 if_bAlternateSetting; */
221 0x02, /* u8 if_bNumEndpoints; */
222 0xe0, /* u8 if_bInterfaceClass; Wireless */
223 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
224 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
225 0x00, /* u8 if_iInterface; */
226
227 /* endpoint one */
228 0x07, /* u8 ep_bLength; */
229 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
230 USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
231 0x01, /* u8 ep_bmAttributes; Isochronous */
232 0x19, 0x00, /* u16 ep_wMaxPacketSize; */
233 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
234
235 /* endpoint two */
236 0x07, /* u8 ep_bLength; */
237 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
238 USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
239 0x01, /* u8 ep_bmAttributes; Isochronous */
240 0x19, 0x00, /* u16 ep_wMaxPacketSize; */
241 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
242
243 /* interface two setting five */
244 0x09, /* u8 if_bLength; */
245 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
246 0x01, /* u8 if_bInterfaceNumber; */
247 0x04, /* u8 if_bAlternateSetting; */
248 0x02, /* u8 if_bNumEndpoints; */
249 0xe0, /* u8 if_bInterfaceClass; Wireless */
250 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
251 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
252 0x00, /* u8 if_iInterface; */
253
254 /* endpoint one */
255 0x07, /* u8 ep_bLength; */
256 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
257 USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
258 0x01, /* u8 ep_bmAttributes; Isochronous */
259 0x21, 0x00, /* u16 ep_wMaxPacketSize; */
260 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
261
262 /* endpoint two */
263 0x07, /* u8 ep_bLength; */
264 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
265 USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
266 0x01, /* u8 ep_bmAttributes; Isochronous */
267 0x21, 0x00, /* u16 ep_wMaxPacketSize; */
268 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
269
270 /* interface two setting six */
271 0x09, /* u8 if_bLength; */
272 USB_DT_INTERFACE, /* u8 if_bDescriptorType; */
273 0x01, /* u8 if_bInterfaceNumber; */
274 0x05, /* u8 if_bAlternateSetting; */
275 0x02, /* u8 if_bNumEndpoints; */
276 0xe0, /* u8 if_bInterfaceClass; Wireless */
277 0x01, /* u8 if_bInterfaceSubClass; Radio Frequency */
278 0x01, /* u8 if_bInterfaceProtocol; Bluetooth */
279 0x00, /* u8 if_iInterface; */
280
281 /* endpoint one */
282 0x07, /* u8 ep_bLength; */
283 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
284 USB_DIR_OUT | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
285 0x01, /* u8 ep_bmAttributes; Isochronous */
286 0x31, 0x00, /* u16 ep_wMaxPacketSize; */
287 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
288
289 /* endpoint two */
290 0x07, /* u8 ep_bLength; */
291 USB_DT_ENDPOINT, /* u8 ep_bDescriptorType; */
292 USB_DIR_IN | USB_SCO_EP, /* u8 ep_bEndpointAddress; */
293 0x01, /* u8 ep_bmAttributes; Isochronous */
294 0x31, 0x00, /* u16 ep_wMaxPacketSize; */
295 0x01, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */
296
297 /* If implemented, the DFU interface descriptor goes here with no
298 * endpoints or alternative settings. */
299 };
300
301 static void usb_bt_fifo_reset(struct usb_hci_in_fifo_s *fifo)
302 {
303 fifo->dstart = 0;
304 fifo->dlen = 0;
305 fifo->dsize = DFIFO_LEN_MASK + 1;
306 fifo->start = 0;
307 fifo->len = 0;
308 }
309
310 static void usb_bt_fifo_enqueue(struct usb_hci_in_fifo_s *fifo,
311 const uint8_t *data, int len)
312 {
313 int off = fifo->dstart + fifo->dlen;
314 uint8_t *buf;
315
316 fifo->dlen += len;
317 if (off <= DFIFO_LEN_MASK) {
318 if (off + len > DFIFO_LEN_MASK + 1 &&
319 (fifo->dsize = off + len) > (DFIFO_LEN_MASK + 1) * 2) {
320 fprintf(stderr, "%s: can't alloc %i bytes\n", __FUNCTION__, len);
321 exit(-1);
322 }
323 buf = fifo->data + off;
324 } else {
325 if (fifo->dlen > fifo->dsize) {
326 fprintf(stderr, "%s: can't alloc %i bytes\n", __FUNCTION__, len);
327 exit(-1);
328 }
329 buf = fifo->data + off - fifo->dsize;
330 }
331
332 off = (fifo->start + fifo->len ++) & CFIFO_LEN_MASK;
333 fifo->fifo[off].data = memcpy(buf, data, len);
334 fifo->fifo[off].len = len;
335 }
336
337 static inline int usb_bt_fifo_dequeue(struct usb_hci_in_fifo_s *fifo,
338 USBPacket *p)
339 {
340 int len;
341
342 if (likely(!fifo->len))
343 return USB_RET_STALL;
344
345 len = MIN(p->len, fifo->fifo[fifo->start].len);
346 memcpy(p->data, fifo->fifo[fifo->start].data, len);
347 if (len == p->len) {
348 fifo->fifo[fifo->start].len -= len;
349 fifo->fifo[fifo->start].data += len;
350 } else {
351 fifo->start ++;
352 fifo->start &= CFIFO_LEN_MASK;
353 fifo->len --;
354 }
355
356 fifo->dstart += len;
357 fifo->dlen -= len;
358 if (fifo->dstart >= fifo->dsize) {
359 fifo->dstart = 0;
360 fifo->dsize = DFIFO_LEN_MASK + 1;
361 }
362
363 return len;
364 }
365
366 static inline void usb_bt_fifo_out_enqueue(struct USBBtState *s,
367 struct usb_hci_out_fifo_s *fifo,
368 void (*send)(struct HCIInfo *, const uint8_t *, int),
369 int (*complete)(const uint8_t *, int),
370 const uint8_t *data, int len)
371 {
372 if (fifo->len) {
373 memcpy(fifo->data + fifo->len, data, len);
374 fifo->len += len;
375 if (complete(fifo->data, fifo->len)) {
376 send(s->hci, fifo->data, fifo->len);
377 fifo->len = 0;
378 }
379 } else if (complete(data, len))
380 send(s->hci, data, len);
381 else {
382 memcpy(fifo->data, data, len);
383 fifo->len = len;
384 }
385
386 /* TODO: do we need to loop? */
387 }
388
389 static int usb_bt_hci_cmd_complete(const uint8_t *data, int len)
390 {
391 len -= HCI_COMMAND_HDR_SIZE;
392 return len >= 0 &&
393 len >= ((struct hci_command_hdr *) data)->plen;
394 }
395
396 static int usb_bt_hci_acl_complete(const uint8_t *data, int len)
397 {
398 len -= HCI_ACL_HDR_SIZE;
399 return len >= 0 &&
400 len >= le16_to_cpu(((struct hci_acl_hdr *) data)->dlen);
401 }
402
403 static int usb_bt_hci_sco_complete(const uint8_t *data, int len)
404 {
405 len -= HCI_SCO_HDR_SIZE;
406 return len >= 0 &&
407 len >= ((struct hci_sco_hdr *) data)->dlen;
408 }
409
410 static void usb_bt_handle_reset(USBDevice *dev)
411 {
412 struct USBBtState *s = (struct USBBtState *) dev->opaque;
413
414 usb_bt_fifo_reset(&s->evt);
415 usb_bt_fifo_reset(&s->acl);
416 usb_bt_fifo_reset(&s->sco);
417 s->outcmd.len = 0;
418 s->outacl.len = 0;
419 s->outsco.len = 0;
420 s->altsetting = 0;
421 }
422
423 static int usb_bt_handle_control(USBDevice *dev, int request, int value,
424 int index, int length, uint8_t *data)
425 {
426 struct USBBtState *s = (struct USBBtState *) dev->opaque;
427 int ret = 0;
428
429 switch (request) {
430 case DeviceRequest | USB_REQ_GET_STATUS:
431 case InterfaceRequest | USB_REQ_GET_STATUS:
432 case EndpointRequest | USB_REQ_GET_STATUS:
433 data[0] = (1 << USB_DEVICE_SELF_POWERED) |
434 (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP);
435 data[1] = 0x00;
436 ret = 2;
437 break;
438 case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
439 case InterfaceOutRequest | USB_REQ_CLEAR_FEATURE:
440 case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
441 if (value == USB_DEVICE_REMOTE_WAKEUP) {
442 dev->remote_wakeup = 0;
443 } else {
444 goto fail;
445 }
446 ret = 0;
447 break;
448 case DeviceOutRequest | USB_REQ_SET_FEATURE:
449 case InterfaceOutRequest | USB_REQ_SET_FEATURE:
450 case EndpointOutRequest | USB_REQ_SET_FEATURE:
451 if (value == USB_DEVICE_REMOTE_WAKEUP) {
452 dev->remote_wakeup = 1;
453 } else {
454 goto fail;
455 }
456 ret = 0;
457 break;
458 case DeviceOutRequest | USB_REQ_SET_ADDRESS:
459 dev->addr = value;
460 ret = 0;
461 break;
462 case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
463 switch (value >> 8) {
464 case USB_DT_DEVICE:
465 ret = sizeof(qemu_bt_dev_descriptor);
466 memcpy(data, qemu_bt_dev_descriptor, ret);
467 break;
468 case USB_DT_CONFIG:
469 ret = sizeof(qemu_bt_config_descriptor);
470 memcpy(data, qemu_bt_config_descriptor, ret);
471 break;
472 case USB_DT_STRING:
473 switch(value & 0xff) {
474 case 0:
475 /* language ids */
476 data[0] = 4;
477 data[1] = 3;
478 data[2] = 0x09;
479 data[3] = 0x04;
480 ret = 4;
481 break;
482 default:
483 goto fail;
484 }
485 break;
486 default:
487 goto fail;
488 }
489 break;
490 case DeviceRequest | USB_REQ_GET_CONFIGURATION:
491 data[0] = qemu_bt_config_descriptor[0x5];
492 ret = 1;
493 s->config = 0;
494 break;
495 case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
496 ret = 0;
497 if (value != qemu_bt_config_descriptor[0x5] && value != 0) {
498 printf("%s: Wrong SET_CONFIGURATION request (%i)\n",
499 __FUNCTION__, value);
500 goto fail;
501 }
502 s->config = 1;
503 usb_bt_fifo_reset(&s->evt);
504 usb_bt_fifo_reset(&s->acl);
505 usb_bt_fifo_reset(&s->sco);
506 break;
507 case InterfaceRequest | USB_REQ_GET_INTERFACE:
508 if (value != 0 || (index & ~1) || length != 1)
509 goto fail;
510 if (index == 1)
511 data[0] = s->altsetting;
512 else
513 data[0] = 0;
514 ret = 1;
515 break;
516 case InterfaceOutRequest | USB_REQ_SET_INTERFACE:
517 if ((index & ~1) || length != 0 ||
518 (index == 1 && (value < 0 || value > 4)) ||
519 (index == 0 && value != 0)) {
520 printf("%s: Wrong SET_INTERFACE request (%i, %i)\n",
521 __FUNCTION__, index, value);
522 goto fail;
523 }
524 s->altsetting = value;
525 ret = 0;
526 break;
527 case ((USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_DEVICE) << 8):
528 if (s->config)
529 usb_bt_fifo_out_enqueue(s, &s->outcmd, s->hci->cmd_send,
530 usb_bt_hci_cmd_complete, data, length);
531 break;
532 default:
533 fail:
534 ret = USB_RET_STALL;
535 break;
536 }
537 return ret;
538 }
539
540 static int usb_bt_handle_data(USBDevice *dev, USBPacket *p)
541 {
542 struct USBBtState *s = (struct USBBtState *) dev->opaque;
543 int ret = 0;
544
545 if (!s->config)
546 goto fail;
547
548 switch (p->pid) {
549 case USB_TOKEN_IN:
550 switch (p->devep & 0xf) {
551 case USB_EVT_EP:
552 ret = usb_bt_fifo_dequeue(&s->evt, p);
553 break;
554
555 case USB_ACL_EP:
556 ret = usb_bt_fifo_dequeue(&s->acl, p);
557 break;
558
559 case USB_SCO_EP:
560 ret = usb_bt_fifo_dequeue(&s->sco, p);
561 break;
562
563 default:
564 goto fail;
565 }
566 break;
567
568 case USB_TOKEN_OUT:
569 switch (p->devep & 0xf) {
570 case USB_ACL_EP:
571 usb_bt_fifo_out_enqueue(s, &s->outacl, s->hci->acl_send,
572 usb_bt_hci_acl_complete, p->data, p->len);
573 break;
574
575 case USB_SCO_EP:
576 usb_bt_fifo_out_enqueue(s, &s->outsco, s->hci->sco_send,
577 usb_bt_hci_sco_complete, p->data, p->len);
578 break;
579
580 default:
581 goto fail;
582 }
583 break;
584
585 default:
586 fail:
587 ret = USB_RET_STALL;
588 break;
589 }
590
591 return ret;
592 }
593
594 static void usb_bt_out_hci_packet_event(void *opaque,
595 const uint8_t *data, int len)
596 {
597 struct USBBtState *s = (struct USBBtState *) opaque;
598
599 usb_bt_fifo_enqueue(&s->evt, data, len);
600 }
601
602 static void usb_bt_out_hci_packet_acl(void *opaque,
603 const uint8_t *data, int len)
604 {
605 struct USBBtState *s = (struct USBBtState *) opaque;
606
607 usb_bt_fifo_enqueue(&s->acl, data, len);
608 }
609
610 static void usb_bt_handle_destroy(USBDevice *dev)
611 {
612 struct USBBtState *s = (struct USBBtState *) dev->opaque;
613
614 s->hci->opaque = NULL;
615 s->hci->evt_recv = NULL;
616 s->hci->acl_recv = NULL;
617 }
618
619 static int usb_bt_initfn(USBDevice *dev)
620 {
621 struct USBBtState *s = DO_UPCAST(struct USBBtState, dev, dev);
622 s->dev.speed = USB_SPEED_HIGH;
623 return 0;
624 }
625
626 USBDevice *usb_bt_init(HCIInfo *hci)
627 {
628 USBDevice *dev;
629 struct USBBtState *s;
630
631 if (!hci)
632 return NULL;
633 dev = usb_create_simple(NULL /* FIXME */, "usb-bt-dongle");
634 s = DO_UPCAST(struct USBBtState, dev, dev);
635 s->dev.opaque = s;
636
637 s->hci = hci;
638 s->hci->opaque = s;
639 s->hci->evt_recv = usb_bt_out_hci_packet_event;
640 s->hci->acl_recv = usb_bt_out_hci_packet_acl;
641
642 usb_bt_handle_reset(&s->dev);
643
644 return dev;
645 }
646
647 static struct USBDeviceInfo bt_info = {
648 .product_desc = "QEMU BT dongle",
649 .qdev.name = "usb-bt-dongle",
650 .qdev.size = sizeof(struct USBBtState),
651 .init = usb_bt_initfn,
652 .handle_packet = usb_generic_handle_packet,
653 .handle_reset = usb_bt_handle_reset,
654 .handle_control = usb_bt_handle_control,
655 .handle_data = usb_bt_handle_data,
656 .handle_destroy = usb_bt_handle_destroy,
657 };
658
659 static void usb_bt_register_devices(void)
660 {
661 usb_qdev_register(&bt_info);
662 }
663 device_init(usb_bt_register_devices)
QEmu