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b870472d PA |
1 | /* |
2 | * QEMU USB audio device | |
3 | * | |
4 | * written by: | |
5 | * H. Peter Anvin <hpa@linux.intel.com> | |
6 | * Gerd Hoffmann <kraxel@redhat.com> | |
7 | * | |
8 | * lousely based on usb net device code which is: | |
9 | * | |
10 | * Copyright (c) 2006 Thomas Sailer | |
11 | * Copyright (c) 2008 Andrzej Zaborowski | |
12 | * | |
13 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
14 | * of this software and associated documentation files (the "Software"), to deal | |
15 | * in the Software without restriction, including without limitation the rights | |
16 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
17 | * copies of the Software, and to permit persons to whom the Software is | |
18 | * furnished to do so, subject to the following conditions: | |
19 | * | |
20 | * The above copyright notice and this permission notice shall be included in | |
21 | * all copies or substantial portions of the Software. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
24 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
25 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
26 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
27 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
28 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
29 | * THE SOFTWARE. | |
30 | */ | |
31 | ||
e532b2e0 | 32 | #include "qemu/osdep.h" |
0b8fa32f | 33 | #include "qemu/module.h" |
f1ae32a1 | 34 | #include "hw/usb.h" |
d6454270 | 35 | #include "migration/vmstate.h" |
463581a8 | 36 | #include "desc.h" |
f1ae32a1 | 37 | #include "hw/hw.h" |
b870472d PA |
38 | #include "audio/audio.h" |
39 | ||
40 | #define USBAUDIO_VENDOR_NUM 0x46f4 /* CRC16() of "QEMU" */ | |
41 | #define USBAUDIO_PRODUCT_NUM 0x0002 | |
42 | ||
43 | #define DEV_CONFIG_VALUE 1 /* The one and only */ | |
44 | ||
45 | /* Descriptor subtypes for AC interfaces */ | |
46 | #define DST_AC_HEADER 1 | |
47 | #define DST_AC_INPUT_TERMINAL 2 | |
48 | #define DST_AC_OUTPUT_TERMINAL 3 | |
49 | #define DST_AC_FEATURE_UNIT 6 | |
50 | /* Descriptor subtypes for AS interfaces */ | |
51 | #define DST_AS_GENERAL 1 | |
52 | #define DST_AS_FORMAT_TYPE 2 | |
53 | /* Descriptor subtypes for endpoints */ | |
54 | #define DST_EP_GENERAL 1 | |
55 | ||
56 | enum usb_audio_strings { | |
57 | STRING_NULL, | |
58 | STRING_MANUFACTURER, | |
59 | STRING_PRODUCT, | |
60 | STRING_SERIALNUMBER, | |
61 | STRING_CONFIG, | |
62 | STRING_USBAUDIO_CONTROL, | |
63 | STRING_INPUT_TERMINAL, | |
64 | STRING_FEATURE_UNIT, | |
65 | STRING_OUTPUT_TERMINAL, | |
66 | STRING_NULL_STREAM, | |
67 | STRING_REAL_STREAM, | |
68 | }; | |
69 | ||
70 | static const USBDescStrings usb_audio_stringtable = { | |
71 | [STRING_MANUFACTURER] = "QEMU", | |
72 | [STRING_PRODUCT] = "QEMU USB Audio", | |
73 | [STRING_SERIALNUMBER] = "1", | |
74 | [STRING_CONFIG] = "Audio Configuration", | |
75 | [STRING_USBAUDIO_CONTROL] = "Audio Device", | |
76 | [STRING_INPUT_TERMINAL] = "Audio Output Pipe", | |
77 | [STRING_FEATURE_UNIT] = "Audio Output Volume Control", | |
78 | [STRING_OUTPUT_TERMINAL] = "Audio Output Terminal", | |
79 | [STRING_NULL_STREAM] = "Audio Output - Disabled", | |
80 | [STRING_REAL_STREAM] = "Audio Output - 48 kHz Stereo", | |
81 | }; | |
82 | ||
83 | #define U16(x) ((x) & 0xff), (((x) >> 8) & 0xff) | |
84 | #define U24(x) U16(x), (((x) >> 16) & 0xff) | |
85 | #define U32(x) U24(x), (((x) >> 24) & 0xff) | |
86 | ||
87 | /* | |
88 | * A Basic Audio Device uses these specific values | |
89 | */ | |
90 | #define USBAUDIO_PACKET_SIZE 192 | |
91 | #define USBAUDIO_SAMPLE_RATE 48000 | |
92 | #define USBAUDIO_PACKET_INTERVAL 1 | |
93 | ||
94 | static const USBDescIface desc_iface[] = { | |
95 | { | |
96 | .bInterfaceNumber = 0, | |
97 | .bNumEndpoints = 0, | |
98 | .bInterfaceClass = USB_CLASS_AUDIO, | |
99 | .bInterfaceSubClass = USB_SUBCLASS_AUDIO_CONTROL, | |
100 | .bInterfaceProtocol = 0x04, | |
101 | .iInterface = STRING_USBAUDIO_CONTROL, | |
102 | .ndesc = 4, | |
103 | .descs = (USBDescOther[]) { | |
104 | { | |
105 | /* Headphone Class-Specific AC Interface Header Descriptor */ | |
106 | .data = (uint8_t[]) { | |
107 | 0x09, /* u8 bLength */ | |
108 | USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ | |
109 | DST_AC_HEADER, /* u8 bDescriptorSubtype */ | |
110 | U16(0x0100), /* u16 bcdADC */ | |
111 | U16(0x2b), /* u16 wTotalLength */ | |
112 | 0x01, /* u8 bInCollection */ | |
113 | 0x01, /* u8 baInterfaceNr */ | |
114 | } | |
115 | },{ | |
116 | /* Generic Stereo Input Terminal ID1 Descriptor */ | |
117 | .data = (uint8_t[]) { | |
118 | 0x0c, /* u8 bLength */ | |
119 | USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ | |
120 | DST_AC_INPUT_TERMINAL, /* u8 bDescriptorSubtype */ | |
121 | 0x01, /* u8 bTerminalID */ | |
122 | U16(0x0101), /* u16 wTerminalType */ | |
123 | 0x00, /* u8 bAssocTerminal */ | |
124 | 0x02, /* u16 bNrChannels */ | |
125 | U16(0x0003), /* u16 wChannelConfig */ | |
126 | 0x00, /* u8 iChannelNames */ | |
127 | STRING_INPUT_TERMINAL, /* u8 iTerminal */ | |
128 | } | |
129 | },{ | |
130 | /* Generic Stereo Feature Unit ID2 Descriptor */ | |
131 | .data = (uint8_t[]) { | |
132 | 0x0d, /* u8 bLength */ | |
133 | USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ | |
134 | DST_AC_FEATURE_UNIT, /* u8 bDescriptorSubtype */ | |
135 | 0x02, /* u8 bUnitID */ | |
136 | 0x01, /* u8 bSourceID */ | |
137 | 0x02, /* u8 bControlSize */ | |
138 | U16(0x0001), /* u16 bmaControls(0) */ | |
139 | U16(0x0002), /* u16 bmaControls(1) */ | |
140 | U16(0x0002), /* u16 bmaControls(2) */ | |
141 | STRING_FEATURE_UNIT, /* u8 iFeature */ | |
142 | } | |
143 | },{ | |
144 | /* Headphone Ouptut Terminal ID3 Descriptor */ | |
145 | .data = (uint8_t[]) { | |
146 | 0x09, /* u8 bLength */ | |
147 | USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ | |
148 | DST_AC_OUTPUT_TERMINAL, /* u8 bDescriptorSubtype */ | |
149 | 0x03, /* u8 bUnitID */ | |
150 | U16(0x0301), /* u16 wTerminalType (SPK) */ | |
151 | 0x00, /* u8 bAssocTerminal */ | |
152 | 0x02, /* u8 bSourceID */ | |
153 | STRING_OUTPUT_TERMINAL, /* u8 iTerminal */ | |
154 | } | |
155 | } | |
156 | }, | |
157 | },{ | |
158 | .bInterfaceNumber = 1, | |
159 | .bAlternateSetting = 0, | |
160 | .bNumEndpoints = 0, | |
161 | .bInterfaceClass = USB_CLASS_AUDIO, | |
162 | .bInterfaceSubClass = USB_SUBCLASS_AUDIO_STREAMING, | |
163 | .iInterface = STRING_NULL_STREAM, | |
164 | },{ | |
165 | .bInterfaceNumber = 1, | |
166 | .bAlternateSetting = 1, | |
167 | .bNumEndpoints = 1, | |
168 | .bInterfaceClass = USB_CLASS_AUDIO, | |
169 | .bInterfaceSubClass = USB_SUBCLASS_AUDIO_STREAMING, | |
170 | .iInterface = STRING_REAL_STREAM, | |
171 | .ndesc = 2, | |
172 | .descs = (USBDescOther[]) { | |
173 | { | |
174 | /* Headphone Class-specific AS General Interface Descriptor */ | |
175 | .data = (uint8_t[]) { | |
176 | 0x07, /* u8 bLength */ | |
177 | USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ | |
178 | DST_AS_GENERAL, /* u8 bDescriptorSubtype */ | |
179 | 0x01, /* u8 bTerminalLink */ | |
180 | 0x00, /* u8 bDelay */ | |
181 | 0x01, 0x00, /* u16 wFormatTag */ | |
182 | } | |
183 | },{ | |
184 | /* Headphone Type I Format Type Descriptor */ | |
185 | .data = (uint8_t[]) { | |
186 | 0x0b, /* u8 bLength */ | |
187 | USB_DT_CS_INTERFACE, /* u8 bDescriptorType */ | |
188 | DST_AS_FORMAT_TYPE, /* u8 bDescriptorSubtype */ | |
189 | 0x01, /* u8 bFormatType */ | |
190 | 0x02, /* u8 bNrChannels */ | |
191 | 0x02, /* u8 bSubFrameSize */ | |
192 | 0x10, /* u8 bBitResolution */ | |
193 | 0x01, /* u8 bSamFreqType */ | |
194 | U24(USBAUDIO_SAMPLE_RATE), /* u24 tSamFreq */ | |
195 | } | |
196 | } | |
197 | }, | |
198 | .eps = (USBDescEndpoint[]) { | |
199 | { | |
200 | .bEndpointAddress = USB_DIR_OUT | 0x01, | |
201 | .bmAttributes = 0x0d, | |
202 | .wMaxPacketSize = USBAUDIO_PACKET_SIZE, | |
203 | .bInterval = 1, | |
204 | .is_audio = 1, | |
205 | /* Stereo Headphone Class-specific | |
206 | AS Audio Data Endpoint Descriptor */ | |
207 | .extra = (uint8_t[]) { | |
208 | 0x07, /* u8 bLength */ | |
209 | USB_DT_CS_ENDPOINT, /* u8 bDescriptorType */ | |
210 | DST_EP_GENERAL, /* u8 bDescriptorSubtype */ | |
211 | 0x00, /* u8 bmAttributes */ | |
212 | 0x00, /* u8 bLockDelayUnits */ | |
213 | U16(0x0000), /* u16 wLockDelay */ | |
214 | }, | |
215 | }, | |
216 | } | |
217 | } | |
218 | }; | |
219 | ||
220 | static const USBDescDevice desc_device = { | |
2bbd086c | 221 | .bcdUSB = 0x0100, |
b870472d PA |
222 | .bMaxPacketSize0 = 64, |
223 | .bNumConfigurations = 1, | |
224 | .confs = (USBDescConfig[]) { | |
225 | { | |
226 | .bNumInterfaces = 2, | |
227 | .bConfigurationValue = DEV_CONFIG_VALUE, | |
228 | .iConfiguration = STRING_CONFIG, | |
bd93976a | 229 | .bmAttributes = USB_CFG_ATT_ONE | USB_CFG_ATT_SELFPOWER, |
b870472d PA |
230 | .bMaxPower = 0x32, |
231 | .nif = ARRAY_SIZE(desc_iface), | |
232 | .ifs = desc_iface, | |
233 | }, | |
234 | }, | |
235 | }; | |
236 | ||
237 | static const USBDesc desc_audio = { | |
238 | .id = { | |
239 | .idVendor = USBAUDIO_VENDOR_NUM, | |
240 | .idProduct = USBAUDIO_PRODUCT_NUM, | |
241 | .bcdDevice = 0, | |
242 | .iManufacturer = STRING_MANUFACTURER, | |
243 | .iProduct = STRING_PRODUCT, | |
244 | .iSerialNumber = STRING_SERIALNUMBER, | |
245 | }, | |
246 | .full = &desc_device, | |
247 | .str = usb_audio_stringtable, | |
248 | }; | |
249 | ||
250 | /* | |
251 | * A USB audio device supports an arbitrary number of alternate | |
252 | * interface settings for each interface. Each corresponds to a block | |
253 | * diagram of parameterized blocks. This can thus refer to things like | |
254 | * number of channels, data rates, or in fact completely different | |
255 | * block diagrams. Alternative setting 0 is always the null block diagram, | |
256 | * which is used by a disabled device. | |
257 | */ | |
258 | enum usb_audio_altset { | |
259 | ALTSET_OFF = 0x00, /* No endpoint */ | |
260 | ALTSET_ON = 0x01, /* Single endpoint */ | |
261 | }; | |
262 | ||
263 | /* | |
264 | * Class-specific control requests | |
265 | */ | |
266 | #define CR_SET_CUR 0x01 | |
267 | #define CR_GET_CUR 0x81 | |
268 | #define CR_SET_MIN 0x02 | |
269 | #define CR_GET_MIN 0x82 | |
270 | #define CR_SET_MAX 0x03 | |
271 | #define CR_GET_MAX 0x83 | |
272 | #define CR_SET_RES 0x04 | |
273 | #define CR_GET_RES 0x84 | |
274 | #define CR_SET_MEM 0x05 | |
275 | #define CR_GET_MEM 0x85 | |
276 | #define CR_GET_STAT 0xff | |
277 | ||
278 | /* | |
279 | * Feature Unit Control Selectors | |
280 | */ | |
281 | #define MUTE_CONTROL 0x01 | |
282 | #define VOLUME_CONTROL 0x02 | |
283 | #define BASS_CONTROL 0x03 | |
284 | #define MID_CONTROL 0x04 | |
285 | #define TREBLE_CONTROL 0x05 | |
286 | #define GRAPHIC_EQUALIZER_CONTROL 0x06 | |
287 | #define AUTOMATIC_GAIN_CONTROL 0x07 | |
288 | #define DELAY_CONTROL 0x08 | |
289 | #define BASS_BOOST_CONTROL 0x09 | |
290 | #define LOUDNESS_CONTROL 0x0a | |
291 | ||
292 | /* | |
293 | * buffering | |
294 | */ | |
295 | ||
296 | struct streambuf { | |
297 | uint8_t *data; | |
298 | uint32_t size; | |
299 | uint32_t prod; | |
300 | uint32_t cons; | |
301 | }; | |
302 | ||
303 | static void streambuf_init(struct streambuf *buf, uint32_t size) | |
304 | { | |
305 | g_free(buf->data); | |
306 | buf->size = size - (size % USBAUDIO_PACKET_SIZE); | |
307 | buf->data = g_malloc(buf->size); | |
308 | buf->prod = 0; | |
309 | buf->cons = 0; | |
310 | } | |
311 | ||
312 | static void streambuf_fini(struct streambuf *buf) | |
313 | { | |
314 | g_free(buf->data); | |
315 | buf->data = NULL; | |
316 | } | |
317 | ||
318 | static int streambuf_put(struct streambuf *buf, USBPacket *p) | |
319 | { | |
320 | uint32_t free = buf->size - (buf->prod - buf->cons); | |
321 | ||
322 | if (!free) { | |
323 | return 0; | |
324 | } | |
a7fde1c1 GH |
325 | if (p->iov.size != USBAUDIO_PACKET_SIZE) { |
326 | return 0; | |
327 | } | |
b870472d PA |
328 | assert(free >= USBAUDIO_PACKET_SIZE); |
329 | usb_packet_copy(p, buf->data + (buf->prod % buf->size), | |
330 | USBAUDIO_PACKET_SIZE); | |
331 | buf->prod += USBAUDIO_PACKET_SIZE; | |
332 | return USBAUDIO_PACKET_SIZE; | |
333 | } | |
334 | ||
335 | static uint8_t *streambuf_get(struct streambuf *buf) | |
336 | { | |
337 | uint32_t used = buf->prod - buf->cons; | |
338 | uint8_t *data; | |
339 | ||
340 | if (!used) { | |
341 | return NULL; | |
342 | } | |
343 | assert(used >= USBAUDIO_PACKET_SIZE); | |
344 | data = buf->data + (buf->cons % buf->size); | |
345 | buf->cons += USBAUDIO_PACKET_SIZE; | |
346 | return data; | |
347 | } | |
348 | ||
349 | typedef struct USBAudioState { | |
350 | /* qemu interfaces */ | |
351 | USBDevice dev; | |
352 | QEMUSoundCard card; | |
353 | ||
354 | /* state */ | |
355 | struct { | |
356 | enum usb_audio_altset altset; | |
357 | struct audsettings as; | |
358 | SWVoiceOut *voice; | |
359 | bool mute; | |
360 | uint8_t vol[2]; | |
361 | struct streambuf buf; | |
362 | } out; | |
363 | ||
364 | /* properties */ | |
365 | uint32_t debug; | |
366 | uint32_t buffer; | |
367 | } USBAudioState; | |
368 | ||
0389a0b1 GA |
369 | #define TYPE_USB_AUDIO "usb-audio" |
370 | #define USB_AUDIO(obj) OBJECT_CHECK(USBAudioState, (obj), TYPE_USB_AUDIO) | |
371 | ||
b870472d PA |
372 | static void output_callback(void *opaque, int avail) |
373 | { | |
374 | USBAudioState *s = opaque; | |
375 | uint8_t *data; | |
376 | ||
377 | for (;;) { | |
378 | if (avail < USBAUDIO_PACKET_SIZE) { | |
379 | return; | |
380 | } | |
381 | data = streambuf_get(&s->out.buf); | |
d0657b2a | 382 | if (!data) { |
b870472d PA |
383 | return; |
384 | } | |
385 | AUD_write(s->out.voice, data, USBAUDIO_PACKET_SIZE); | |
386 | avail -= USBAUDIO_PACKET_SIZE; | |
387 | } | |
388 | } | |
389 | ||
390 | static int usb_audio_set_output_altset(USBAudioState *s, int altset) | |
391 | { | |
392 | switch (altset) { | |
393 | case ALTSET_OFF: | |
394 | streambuf_init(&s->out.buf, s->buffer); | |
395 | AUD_set_active_out(s->out.voice, false); | |
396 | break; | |
397 | case ALTSET_ON: | |
398 | AUD_set_active_out(s->out.voice, true); | |
399 | break; | |
400 | default: | |
401 | return -1; | |
402 | } | |
403 | ||
404 | if (s->debug) { | |
405 | fprintf(stderr, "usb-audio: set interface %d\n", altset); | |
406 | } | |
407 | s->out.altset = altset; | |
408 | return 0; | |
409 | } | |
410 | ||
411 | /* | |
412 | * Note: we arbitrarily map the volume control range onto -inf..+8 dB | |
413 | */ | |
414 | #define ATTRIB_ID(cs, attrib, idif) \ | |
415 | (((cs) << 24) | ((attrib) << 16) | (idif)) | |
416 | ||
417 | static int usb_audio_get_control(USBAudioState *s, uint8_t attrib, | |
418 | uint16_t cscn, uint16_t idif, | |
419 | int length, uint8_t *data) | |
420 | { | |
421 | uint8_t cs = cscn >> 8; | |
422 | uint8_t cn = cscn - 1; /* -1 for the non-present master control */ | |
423 | uint32_t aid = ATTRIB_ID(cs, attrib, idif); | |
424 | int ret = USB_RET_STALL; | |
425 | ||
426 | switch (aid) { | |
427 | case ATTRIB_ID(MUTE_CONTROL, CR_GET_CUR, 0x0200): | |
428 | data[0] = s->out.mute; | |
429 | ret = 1; | |
430 | break; | |
431 | case ATTRIB_ID(VOLUME_CONTROL, CR_GET_CUR, 0x0200): | |
432 | if (cn < 2) { | |
433 | uint16_t vol = (s->out.vol[cn] * 0x8800 + 127) / 255 + 0x8000; | |
434 | data[0] = vol; | |
435 | data[1] = vol >> 8; | |
436 | ret = 2; | |
437 | } | |
438 | break; | |
439 | case ATTRIB_ID(VOLUME_CONTROL, CR_GET_MIN, 0x0200): | |
440 | if (cn < 2) { | |
441 | data[0] = 0x01; | |
442 | data[1] = 0x80; | |
443 | ret = 2; | |
444 | } | |
445 | break; | |
446 | case ATTRIB_ID(VOLUME_CONTROL, CR_GET_MAX, 0x0200): | |
447 | if (cn < 2) { | |
448 | data[0] = 0x00; | |
449 | data[1] = 0x08; | |
450 | ret = 2; | |
451 | } | |
452 | break; | |
453 | case ATTRIB_ID(VOLUME_CONTROL, CR_GET_RES, 0x0200): | |
454 | if (cn < 2) { | |
455 | data[0] = 0x88; | |
456 | data[1] = 0x00; | |
457 | ret = 2; | |
458 | } | |
459 | break; | |
460 | } | |
461 | ||
462 | return ret; | |
463 | } | |
464 | static int usb_audio_set_control(USBAudioState *s, uint8_t attrib, | |
465 | uint16_t cscn, uint16_t idif, | |
466 | int length, uint8_t *data) | |
467 | { | |
468 | uint8_t cs = cscn >> 8; | |
469 | uint8_t cn = cscn - 1; /* -1 for the non-present master control */ | |
470 | uint32_t aid = ATTRIB_ID(cs, attrib, idif); | |
471 | int ret = USB_RET_STALL; | |
472 | bool set_vol = false; | |
473 | ||
474 | switch (aid) { | |
475 | case ATTRIB_ID(MUTE_CONTROL, CR_SET_CUR, 0x0200): | |
476 | s->out.mute = data[0] & 1; | |
477 | set_vol = true; | |
478 | ret = 0; | |
479 | break; | |
480 | case ATTRIB_ID(VOLUME_CONTROL, CR_SET_CUR, 0x0200): | |
481 | if (cn < 2) { | |
482 | uint16_t vol = data[0] + (data[1] << 8); | |
483 | ||
484 | if (s->debug) { | |
485 | fprintf(stderr, "usb-audio: vol %04x\n", (uint16_t)vol); | |
486 | } | |
487 | ||
488 | vol -= 0x8000; | |
489 | vol = (vol * 255 + 0x4400) / 0x8800; | |
490 | if (vol > 255) { | |
491 | vol = 255; | |
492 | } | |
493 | ||
494 | s->out.vol[cn] = vol; | |
495 | set_vol = true; | |
496 | ret = 0; | |
497 | } | |
498 | break; | |
499 | } | |
500 | ||
501 | if (set_vol) { | |
502 | if (s->debug) { | |
503 | fprintf(stderr, "usb-audio: mute %d, lvol %3d, rvol %3d\n", | |
504 | s->out.mute, s->out.vol[0], s->out.vol[1]); | |
505 | } | |
506 | AUD_set_volume_out(s->out.voice, s->out.mute, | |
507 | s->out.vol[0], s->out.vol[1]); | |
508 | } | |
509 | ||
510 | return ret; | |
511 | } | |
512 | ||
9a77a0f5 | 513 | static void usb_audio_handle_control(USBDevice *dev, USBPacket *p, |
b870472d PA |
514 | int request, int value, int index, |
515 | int length, uint8_t *data) | |
516 | { | |
0389a0b1 | 517 | USBAudioState *s = USB_AUDIO(dev); |
b870472d PA |
518 | int ret = 0; |
519 | ||
520 | if (s->debug) { | |
521 | fprintf(stderr, "usb-audio: control transaction: " | |
522 | "request 0x%04x value 0x%04x index 0x%04x length 0x%04x\n", | |
523 | request, value, index, length); | |
524 | } | |
525 | ||
526 | ret = usb_desc_handle_control(dev, p, request, value, index, length, data); | |
527 | if (ret >= 0) { | |
9a77a0f5 | 528 | return; |
b870472d PA |
529 | } |
530 | ||
531 | switch (request) { | |
532 | case ClassInterfaceRequest | CR_GET_CUR: | |
533 | case ClassInterfaceRequest | CR_GET_MIN: | |
534 | case ClassInterfaceRequest | CR_GET_MAX: | |
535 | case ClassInterfaceRequest | CR_GET_RES: | |
536 | ret = usb_audio_get_control(s, request & 0xff, value, index, | |
537 | length, data); | |
538 | if (ret < 0) { | |
539 | if (s->debug) { | |
540 | fprintf(stderr, "usb-audio: fail: get control\n"); | |
541 | } | |
542 | goto fail; | |
543 | } | |
9a77a0f5 | 544 | p->actual_length = ret; |
b870472d PA |
545 | break; |
546 | ||
547 | case ClassInterfaceOutRequest | CR_SET_CUR: | |
548 | case ClassInterfaceOutRequest | CR_SET_MIN: | |
549 | case ClassInterfaceOutRequest | CR_SET_MAX: | |
550 | case ClassInterfaceOutRequest | CR_SET_RES: | |
551 | ret = usb_audio_set_control(s, request & 0xff, value, index, | |
552 | length, data); | |
553 | if (ret < 0) { | |
554 | if (s->debug) { | |
555 | fprintf(stderr, "usb-audio: fail: set control\n"); | |
556 | } | |
557 | goto fail; | |
558 | } | |
559 | break; | |
560 | ||
561 | default: | |
562 | fail: | |
563 | if (s->debug) { | |
564 | fprintf(stderr, "usb-audio: failed control transaction: " | |
565 | "request 0x%04x value 0x%04x index 0x%04x length 0x%04x\n", | |
566 | request, value, index, length); | |
567 | } | |
9a77a0f5 | 568 | p->status = USB_RET_STALL; |
b870472d PA |
569 | break; |
570 | } | |
b870472d PA |
571 | } |
572 | ||
573 | static void usb_audio_set_interface(USBDevice *dev, int iface, | |
574 | int old, int value) | |
575 | { | |
0389a0b1 | 576 | USBAudioState *s = USB_AUDIO(dev); |
b870472d PA |
577 | |
578 | if (iface == 1) { | |
579 | usb_audio_set_output_altset(s, value); | |
580 | } | |
581 | } | |
582 | ||
583 | static void usb_audio_handle_reset(USBDevice *dev) | |
584 | { | |
0389a0b1 | 585 | USBAudioState *s = USB_AUDIO(dev); |
b870472d PA |
586 | |
587 | if (s->debug) { | |
588 | fprintf(stderr, "usb-audio: reset\n"); | |
589 | } | |
590 | usb_audio_set_output_altset(s, ALTSET_OFF); | |
591 | } | |
592 | ||
9a77a0f5 | 593 | static void usb_audio_handle_dataout(USBAudioState *s, USBPacket *p) |
b870472d | 594 | { |
b870472d | 595 | if (s->out.altset == ALTSET_OFF) { |
9a77a0f5 HG |
596 | p->status = USB_RET_STALL; |
597 | return; | |
b870472d PA |
598 | } |
599 | ||
9a77a0f5 HG |
600 | streambuf_put(&s->out.buf, p); |
601 | if (p->actual_length < p->iov.size && s->debug > 1) { | |
b870472d | 602 | fprintf(stderr, "usb-audio: output overrun (%zd bytes)\n", |
9a77a0f5 | 603 | p->iov.size - p->actual_length); |
b870472d | 604 | } |
b870472d PA |
605 | } |
606 | ||
9a77a0f5 | 607 | static void usb_audio_handle_data(USBDevice *dev, USBPacket *p) |
b870472d PA |
608 | { |
609 | USBAudioState *s = (USBAudioState *) dev; | |
b870472d | 610 | |
9a77a0f5 HG |
611 | if (p->pid == USB_TOKEN_OUT && p->ep->nr == 1) { |
612 | usb_audio_handle_dataout(s, p); | |
613 | return; | |
b870472d | 614 | } |
9a77a0f5 HG |
615 | |
616 | p->status = USB_RET_STALL; | |
617 | if (s->debug) { | |
b870472d PA |
618 | fprintf(stderr, "usb-audio: failed data transaction: " |
619 | "pid 0x%x ep 0x%x len 0x%zx\n", | |
079d0b7f | 620 | p->pid, p->ep->nr, p->iov.size); |
b870472d | 621 | } |
b870472d PA |
622 | } |
623 | ||
c4fe9700 | 624 | static void usb_audio_unrealize(USBDevice *dev, Error **errp) |
b870472d | 625 | { |
0389a0b1 | 626 | USBAudioState *s = USB_AUDIO(dev); |
b870472d PA |
627 | |
628 | if (s->debug) { | |
629 | fprintf(stderr, "usb-audio: destroy\n"); | |
630 | } | |
631 | ||
632 | usb_audio_set_output_altset(s, ALTSET_OFF); | |
633 | AUD_close_out(&s->card, s->out.voice); | |
634 | AUD_remove_card(&s->card); | |
635 | ||
636 | streambuf_fini(&s->out.buf); | |
637 | } | |
638 | ||
5450eeaa | 639 | static void usb_audio_realize(USBDevice *dev, Error **errp) |
b870472d | 640 | { |
0389a0b1 | 641 | USBAudioState *s = USB_AUDIO(dev); |
b870472d | 642 | |
9d55d1ad | 643 | usb_desc_create_serial(dev); |
b870472d PA |
644 | usb_desc_init(dev); |
645 | s->dev.opaque = s; | |
0389a0b1 | 646 | AUD_register_card(TYPE_USB_AUDIO, &s->card); |
b870472d PA |
647 | |
648 | s->out.altset = ALTSET_OFF; | |
649 | s->out.mute = false; | |
650 | s->out.vol[0] = 240; /* 0 dB */ | |
651 | s->out.vol[1] = 240; /* 0 dB */ | |
652 | s->out.as.freq = USBAUDIO_SAMPLE_RATE; | |
653 | s->out.as.nchannels = 2; | |
85bc5852 | 654 | s->out.as.fmt = AUDIO_FORMAT_S16; |
b870472d PA |
655 | s->out.as.endianness = 0; |
656 | streambuf_init(&s->out.buf, s->buffer); | |
657 | ||
0389a0b1 | 658 | s->out.voice = AUD_open_out(&s->card, s->out.voice, TYPE_USB_AUDIO, |
b870472d PA |
659 | s, output_callback, &s->out.as); |
660 | AUD_set_volume_out(s->out.voice, s->out.mute, s->out.vol[0], s->out.vol[1]); | |
661 | AUD_set_active_out(s->out.voice, 0); | |
b870472d PA |
662 | } |
663 | ||
664 | static const VMStateDescription vmstate_usb_audio = { | |
0389a0b1 | 665 | .name = TYPE_USB_AUDIO, |
b870472d PA |
666 | .unmigratable = 1, |
667 | }; | |
668 | ||
39bffca2 AL |
669 | static Property usb_audio_properties[] = { |
670 | DEFINE_PROP_UINT32("debug", USBAudioState, debug, 0), | |
671 | DEFINE_PROP_UINT32("buffer", USBAudioState, buffer, | |
37bc43f7 | 672 | 32 * USBAUDIO_PACKET_SIZE), |
39bffca2 AL |
673 | DEFINE_PROP_END_OF_LIST(), |
674 | }; | |
675 | ||
62aed765 AL |
676 | static void usb_audio_class_init(ObjectClass *klass, void *data) |
677 | { | |
39bffca2 | 678 | DeviceClass *dc = DEVICE_CLASS(klass); |
62aed765 AL |
679 | USBDeviceClass *k = USB_DEVICE_CLASS(klass); |
680 | ||
39bffca2 AL |
681 | dc->vmsd = &vmstate_usb_audio; |
682 | dc->props = usb_audio_properties; | |
125ee0ed | 683 | set_bit(DEVICE_CATEGORY_SOUND, dc->categories); |
62aed765 AL |
684 | k->product_desc = "QEMU USB Audio Interface"; |
685 | k->usb_desc = &desc_audio; | |
5450eeaa | 686 | k->realize = usb_audio_realize; |
62aed765 AL |
687 | k->handle_reset = usb_audio_handle_reset; |
688 | k->handle_control = usb_audio_handle_control; | |
689 | k->handle_data = usb_audio_handle_data; | |
c4fe9700 | 690 | k->unrealize = usb_audio_unrealize; |
62aed765 AL |
691 | k->set_interface = usb_audio_set_interface; |
692 | } | |
693 | ||
8c43a6f0 | 694 | static const TypeInfo usb_audio_info = { |
0389a0b1 | 695 | .name = TYPE_USB_AUDIO, |
39bffca2 AL |
696 | .parent = TYPE_USB_DEVICE, |
697 | .instance_size = sizeof(USBAudioState), | |
698 | .class_init = usb_audio_class_init, | |
b870472d PA |
699 | }; |
700 | ||
83f7d43a | 701 | static void usb_audio_register_types(void) |
b870472d | 702 | { |
39bffca2 | 703 | type_register_static(&usb_audio_info); |
0389a0b1 | 704 | usb_legacy_register(TYPE_USB_AUDIO, "audio", NULL); |
b870472d PA |
705 | } |
706 | ||
83f7d43a | 707 | type_init(usb_audio_register_types) |