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20#include "qemu/osdep.h"
21#include "qemu/host-utils.h"
22#include "qemu/module.h"
23#include "qemu/error-report.h"
24#include "qemu/timer.h"
25#include "ui/qemu-spice.h"
26
27#define AUDIO_CAP "spice"
28#include "audio.h"
29#include "audio_int.h"
30
31#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
32#define LINE_OUT_SAMPLES (480 * 4)
33#else
34#define LINE_OUT_SAMPLES (256 * 4)
35#endif
36
37#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
38#define LINE_IN_SAMPLES (480 * 4)
39#else
40#define LINE_IN_SAMPLES (256 * 4)
41#endif
42
43typedef struct SpiceVoiceOut {
44 HWVoiceOut hw;
45 SpicePlaybackInstance sin;
46 RateCtl rate;
47 int active;
48 uint32_t *frame;
49 uint32_t fpos;
50 uint32_t fsize;
51} SpiceVoiceOut;
52
53typedef struct SpiceVoiceIn {
54 HWVoiceIn hw;
55 SpiceRecordInstance sin;
56 RateCtl rate;
57 int active;
58} SpiceVoiceIn;
59
60static const SpicePlaybackInterface playback_sif = {
61 .base.type = SPICE_INTERFACE_PLAYBACK,
62 .base.description = "playback",
63 .base.major_version = SPICE_INTERFACE_PLAYBACK_MAJOR,
64 .base.minor_version = SPICE_INTERFACE_PLAYBACK_MINOR,
65};
66
67static const SpiceRecordInterface record_sif = {
68 .base.type = SPICE_INTERFACE_RECORD,
69 .base.description = "record",
70 .base.major_version = SPICE_INTERFACE_RECORD_MAJOR,
71 .base.minor_version = SPICE_INTERFACE_RECORD_MINOR,
72};
73
74static void *spice_audio_init(Audiodev *dev)
75{
76 if (!using_spice) {
77 return NULL;
78 }
79 return &spice_audio_init;
80}
81
82static void spice_audio_fini (void *opaque)
83{
84
85}
86
87
88
89static int line_out_init(HWVoiceOut *hw, struct audsettings *as,
90 void *drv_opaque)
91{
92 SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
93 struct audsettings settings;
94
95#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
96 settings.freq = spice_server_get_best_playback_rate(NULL);
97#else
98 settings.freq = SPICE_INTERFACE_PLAYBACK_FREQ;
99#endif
100 settings.nchannels = SPICE_INTERFACE_PLAYBACK_CHAN;
101 settings.fmt = AUDIO_FORMAT_S16;
102 settings.endianness = AUDIO_HOST_ENDIANNESS;
103
104 audio_pcm_init_info (&hw->info, &settings);
105 hw->samples = LINE_OUT_SAMPLES;
106 out->active = 0;
107
108 out->sin.base.sif = &playback_sif.base;
109 qemu_spice.add_interface(&out->sin.base);
110#if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
111 spice_server_set_playback_rate(&out->sin, settings.freq);
112#endif
113 return 0;
114}
115
116static void line_out_fini (HWVoiceOut *hw)
117{
118 SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
119
120 spice_server_remove_interface (&out->sin.base);
121}
122
123static void *line_out_get_buffer(HWVoiceOut *hw, size_t *size)
124{
125 SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
126
127 if (!out->frame) {
128 spice_server_playback_get_buffer(&out->sin, &out->frame, &out->fsize);
129 out->fpos = 0;
130 }
131
132 if (out->frame) {
133 *size = MIN((out->fsize - out->fpos) << 2, *size);
134 }
135
136 *size = audio_rate_get_bytes(&hw->info, &out->rate, *size);
137
138 return out->frame + out->fpos;
139}
140
141static size_t line_out_put_buffer(HWVoiceOut *hw, void *buf, size_t size)
142{
143 SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
144
145 if (buf) {
146 assert(buf == out->frame + out->fpos && out->fpos <= out->fsize);
147 out->fpos += size >> 2;
148
149 if (out->fpos == out->fsize) {
150 spice_server_playback_put_samples(&out->sin, out->frame);
151 out->frame = NULL;
152 }
153 }
154
155 return size;
156}
157
158static void line_out_enable(HWVoiceOut *hw, bool enable)
159{
160 SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
161
162 if (enable) {
163 if (out->active) {
164 return;
165 }
166 out->active = 1;
167 audio_rate_start(&out->rate);
168 spice_server_playback_start (&out->sin);
169 } else {
170 if (!out->active) {
171 return;
172 }
173 out->active = 0;
174 if (out->frame) {
175 memset(out->frame + out->fpos, 0, (out->fsize - out->fpos) << 2);
176 spice_server_playback_put_samples (&out->sin, out->frame);
177 out->frame = NULL;
178 }
179 spice_server_playback_stop (&out->sin);
180 }
181}
182
183#if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2))
184static void line_out_volume(HWVoiceOut *hw, Volume *vol)
185{
186 SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
187 uint16_t svol[2];
188
189 assert(vol->channels == 2);
190 svol[0] = vol->vol[0] * 257;
191 svol[1] = vol->vol[1] * 257;
192 spice_server_playback_set_volume(&out->sin, 2, svol);
193 spice_server_playback_set_mute(&out->sin, vol->mute);
194}
195#endif
196
197
198
199static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
200{
201 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
202 struct audsettings settings;
203
204#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
205 settings.freq = spice_server_get_best_record_rate(NULL);
206#else
207 settings.freq = SPICE_INTERFACE_RECORD_FREQ;
208#endif
209 settings.nchannels = SPICE_INTERFACE_RECORD_CHAN;
210 settings.fmt = AUDIO_FORMAT_S16;
211 settings.endianness = AUDIO_HOST_ENDIANNESS;
212
213 audio_pcm_init_info (&hw->info, &settings);
214 hw->samples = LINE_IN_SAMPLES;
215 in->active = 0;
216
217 in->sin.base.sif = &record_sif.base;
218 qemu_spice.add_interface(&in->sin.base);
219#if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
220 spice_server_set_record_rate(&in->sin, settings.freq);
221#endif
222 return 0;
223}
224
225static void line_in_fini (HWVoiceIn *hw)
226{
227 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
228
229 spice_server_remove_interface (&in->sin.base);
230}
231
232static size_t line_in_read(HWVoiceIn *hw, void *buf, size_t len)
233{
234 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
235 uint64_t to_read = audio_rate_get_bytes(&hw->info, &in->rate, len) >> 2;
236 size_t ready = spice_server_record_get_samples(&in->sin, buf, to_read);
237
238
239 if (ready == 0) {
240 memset(buf, 0, to_read << 2);
241 ready = to_read;
242 }
243
244 return ready << 2;
245}
246
247static void line_in_enable(HWVoiceIn *hw, bool enable)
248{
249 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
250
251 if (enable) {
252 if (in->active) {
253 return;
254 }
255 in->active = 1;
256 audio_rate_start(&in->rate);
257 spice_server_record_start (&in->sin);
258 } else {
259 if (!in->active) {
260 return;
261 }
262 in->active = 0;
263 spice_server_record_stop (&in->sin);
264 }
265}
266
267#if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2))
268static void line_in_volume(HWVoiceIn *hw, Volume *vol)
269{
270 SpiceVoiceIn *in = container_of(hw, SpiceVoiceIn, hw);
271 uint16_t svol[2];
272
273 assert(vol->channels == 2);
274 svol[0] = vol->vol[0] * 257;
275 svol[1] = vol->vol[1] * 257;
276 spice_server_record_set_volume(&in->sin, 2, svol);
277 spice_server_record_set_mute(&in->sin, vol->mute);
278}
279#endif
280
281static struct audio_pcm_ops audio_callbacks = {
282 .init_out = line_out_init,
283 .fini_out = line_out_fini,
284 .write = audio_generic_write,
285 .get_buffer_out = line_out_get_buffer,
286 .put_buffer_out = line_out_put_buffer,
287 .enable_out = line_out_enable,
288#if (SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && \
289 (SPICE_INTERFACE_PLAYBACK_MINOR >= 2)
290 .volume_out = line_out_volume,
291#endif
292
293 .init_in = line_in_init,
294 .fini_in = line_in_fini,
295 .read = line_in_read,
296 .run_buffer_in = audio_generic_run_buffer_in,
297 .enable_in = line_in_enable,
298#if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2))
299 .volume_in = line_in_volume,
300#endif
301};
302
303static struct audio_driver spice_audio_driver = {
304 .name = "spice",
305 .descr = "spice audio driver",
306 .init = spice_audio_init,
307 .fini = spice_audio_fini,
308 .pcm_ops = &audio_callbacks,
309 .max_voices_out = 1,
310 .max_voices_in = 1,
311 .voice_size_out = sizeof (SpiceVoiceOut),
312 .voice_size_in = sizeof (SpiceVoiceIn),
313};
314
315static void register_audio_spice(void)
316{
317 audio_driver_register(&spice_audio_driver);
318}
319type_init(register_audio_spice);
320
321module_dep("ui-spice-core");
322
