2 * Copyright (C) 2010 Red Hat, Inc.
4 * maintained by Gerd Hoffmann <kraxel@redhat.com>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 or
9 * (at your option) version 3 of the License.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
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"
27 #define AUDIO_CAP "spice"
29 #include "audio_int.h"
31 #if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
32 #define LINE_OUT_SAMPLES (480 * 4)
34 #define LINE_OUT_SAMPLES (256 * 4)
37 #if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
38 #define LINE_IN_SAMPLES (480 * 4)
40 #define LINE_IN_SAMPLES (256 * 4)
43 typedef struct SpiceVoiceOut {
45 SpicePlaybackInstance sin;
53 typedef struct SpiceVoiceIn {
55 SpiceRecordInstance sin;
60 static 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,
67 static 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,
74 static void *spice_audio_init(Audiodev *dev)
79 return &spice_audio_init;
82 static void spice_audio_fini (void *opaque)
89 static int line_out_init(HWVoiceOut *hw, struct audsettings *as,
92 SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
93 struct audsettings settings;
95 #if SPICE_INTERFACE_PLAYBACK_MAJOR > 1 || SPICE_INTERFACE_PLAYBACK_MINOR >= 3
96 settings.freq = spice_server_get_best_playback_rate(NULL);
98 settings.freq = SPICE_INTERFACE_PLAYBACK_FREQ;
100 settings.nchannels = SPICE_INTERFACE_PLAYBACK_CHAN;
101 settings.fmt = AUDIO_FORMAT_S16;
102 settings.endianness = AUDIO_HOST_ENDIANNESS;
104 audio_pcm_init_info (&hw->info, &settings);
105 hw->samples = LINE_OUT_SAMPLES;
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);
116 static void line_out_fini (HWVoiceOut *hw)
118 SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
120 spice_server_remove_interface (&out->sin.base);
123 static void *line_out_get_buffer(HWVoiceOut *hw, size_t *size)
125 SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
128 spice_server_playback_get_buffer(&out->sin, &out->frame, &out->fsize);
133 *size = audio_rate_get_bytes(
134 &hw->info, &out->rate, (out->fsize - out->fpos) << hw->info.shift);
136 audio_rate_start(&out->rate);
138 return out->frame + out->fpos;
141 static size_t line_out_put_buffer(HWVoiceOut *hw, void *buf, size_t size)
143 SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
145 assert(buf == out->frame + out->fpos && out->fpos <= out->fsize);
146 out->fpos += size >> 2;
148 if (out->fpos == out->fsize) { /* buffer full */
149 spice_server_playback_put_samples(&out->sin, out->frame);
156 static void line_out_enable(HWVoiceOut *hw, bool enable)
158 SpiceVoiceOut *out = container_of (hw, SpiceVoiceOut, hw);
165 audio_rate_start(&out->rate);
166 spice_server_playback_start (&out->sin);
173 memset(out->frame + out->fpos, 0, (out->fsize - out->fpos) << 2);
174 spice_server_playback_put_samples (&out->sin, out->frame);
177 spice_server_playback_stop (&out->sin);
181 #if ((SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && (SPICE_INTERFACE_PLAYBACK_MINOR >= 2))
182 static void line_out_volume(HWVoiceOut *hw, struct mixeng_volume *vol)
184 SpiceVoiceOut *out = container_of(hw, SpiceVoiceOut, hw);
187 svol[0] = vol->l / ((1ULL << 16) + 1);
188 svol[1] = vol->r / ((1ULL << 16) + 1);
189 spice_server_playback_set_volume(&out->sin, 2, svol);
190 spice_server_playback_set_mute(&out->sin, vol->mute);
196 static int line_in_init(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque)
198 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
199 struct audsettings settings;
201 #if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
202 settings.freq = spice_server_get_best_record_rate(NULL);
204 settings.freq = SPICE_INTERFACE_RECORD_FREQ;
206 settings.nchannels = SPICE_INTERFACE_RECORD_CHAN;
207 settings.fmt = AUDIO_FORMAT_S16;
208 settings.endianness = AUDIO_HOST_ENDIANNESS;
210 audio_pcm_init_info (&hw->info, &settings);
211 hw->samples = LINE_IN_SAMPLES;
214 in->sin.base.sif = &record_sif.base;
215 qemu_spice_add_interface (&in->sin.base);
216 #if SPICE_INTERFACE_RECORD_MAJOR > 2 || SPICE_INTERFACE_RECORD_MINOR >= 3
217 spice_server_set_record_rate(&in->sin, settings.freq);
222 static void line_in_fini (HWVoiceIn *hw)
224 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
226 spice_server_remove_interface (&in->sin.base);
229 static size_t line_in_read(HWVoiceIn *hw, void *buf, size_t len)
231 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
232 uint64_t to_read = audio_rate_get_bytes(&hw->info, &in->rate, len) >> 2;
233 size_t ready = spice_server_record_get_samples(&in->sin, buf, to_read);
235 /* XXX: do we need this? */
237 memset(buf, 0, to_read << 2);
244 static void line_in_enable(HWVoiceIn *hw, bool enable)
246 SpiceVoiceIn *in = container_of (hw, SpiceVoiceIn, hw);
253 audio_rate_start(&in->rate);
254 spice_server_record_start (&in->sin);
260 spice_server_record_stop (&in->sin);
264 #if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2))
265 static void line_in_volume(HWVoiceIn *hw, struct mixeng_volume *vol)
267 SpiceVoiceIn *in = container_of(hw, SpiceVoiceIn, hw);
270 svol[0] = vol->l / ((1ULL << 16) + 1);
271 svol[1] = vol->r / ((1ULL << 16) + 1);
272 spice_server_record_set_volume(&in->sin, 2, svol);
273 spice_server_record_set_mute(&in->sin, vol->mute);
277 static struct audio_pcm_ops audio_callbacks = {
278 .init_out = line_out_init,
279 .fini_out = line_out_fini,
280 .write = audio_generic_write,
281 .get_buffer_out = line_out_get_buffer,
282 .put_buffer_out = line_out_put_buffer,
283 .enable_out = line_out_enable,
284 #if (SPICE_INTERFACE_PLAYBACK_MAJOR >= 1) && \
285 (SPICE_INTERFACE_PLAYBACK_MINOR >= 2)
286 .volume_out = line_out_volume,
289 .init_in = line_in_init,
290 .fini_in = line_in_fini,
291 .read = line_in_read,
292 .enable_in = line_in_enable,
293 #if ((SPICE_INTERFACE_RECORD_MAJOR >= 2) && (SPICE_INTERFACE_RECORD_MINOR >= 2))
294 .volume_in = line_in_volume,
298 static struct audio_driver spice_audio_driver = {
300 .descr = "spice audio driver",
301 .init = spice_audio_init,
302 .fini = spice_audio_fini,
303 .pcm_ops = &audio_callbacks,
306 .voice_size_out = sizeof (SpiceVoiceOut),
307 .voice_size_in = sizeof (SpiceVoiceIn),
310 void qemu_spice_audio_init (void)
312 spice_audio_driver.can_be_default = 1;
315 static void register_audio_spice(void)
317 audio_driver_register(&spice_audio_driver);
319 type_init(register_audio_spice);