@samitouri / QOSamiQemu
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1 /*
2 * QEMU System Emulator
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "qemu/osdep.h"
25 #include "hw/core/qdev.h"
26 #include "monitor/qdev.h"
27 #include "qemu/error-report.h"
28 #include "qapi/error.h"
29 #include "hw/core/qdev-properties.h"
30 #include "hw/audio/model.h"
31
32 struct audio_model {
33 const char *name;
34 const char *descr;
35 const char *typename;
36 void (*init)(const char *audiodev);
37 };
38
39 static struct audio_model audio_models[9];
40 static int audio_models_count;
41
42 void audio_register_model_with_cb(const char *name, const char *descr,
43 void (*init_audio_model)(const char *audiodev))
44 {
45 assert(audio_models_count < ARRAY_SIZE(audio_models) - 1);
46 audio_models[audio_models_count].name = name;
47 audio_models[audio_models_count].descr = descr;
48 audio_models[audio_models_count].init = init_audio_model;
49 audio_models_count++;
50 }
51
52 void audio_register_model(const char *name, const char *descr,
53 const char *typename)
54 {
55 assert(audio_models_count < ARRAY_SIZE(audio_models) - 1);
56 audio_models[audio_models_count].name = name;
57 audio_models[audio_models_count].descr = descr;
58 audio_models[audio_models_count].typename = typename;
59 audio_models_count++;
60 }
61
62 void audio_print_available_models(void)
63 {
64 struct audio_model *c;
65
66 if (audio_models_count) {
67 printf("Valid audio device model names:\n");
68 for (c = audio_models; c->name; ++c) {
69 printf("%-11s %s\n", c->name, c->descr);
70 }
71 } else {
72 printf("Machine has no user-selectable audio hardware "
73 "(it may or may not have always-present audio hardware).\n");
74 }
75 }
76
77 static struct audio_model *selected;
78 static const char *audiodev_id;
79
80 void audio_set_model(const char *name, const char *audiodev)
81 {
82 struct audio_model *c;
83
84 if (selected) {
85 error_report("only one -audio option is allowed");
86 exit(1);
87 }
88
89 for (c = audio_models; c->name; ++c) {
90 if (g_str_equal(c->name, name)) {
91 selected = c;
92 audiodev_id = audiodev;
93 break;
94 }
95 }
96
97 if (!c->name) {
98 error_report("Unknown audio device model `%s'", name);
99 audio_print_available_models();
100 exit(1);
101 }
102 }
103
104 void audio_model_init(void)
105 {
106 struct audio_model *c = selected;
107
108 if (!c) {
109 return;
110 }
111
112 if (c->typename) {
113 DeviceState *dev = qdev_new(c->typename);
114 BusState *bus = qdev_find_default_bus(DEVICE_GET_CLASS(dev), &error_fatal);
115 qdev_prop_set_string(dev, "audiodev", audiodev_id);
116 qdev_realize_and_unref(dev, bus, &error_fatal);
117 } else {
118 c->init(audiodev_id);
119 }
120 }