scsi: pvscsi: check command descriptor ring buffer size (CVE-2016-4952)
[qemu.git] / audio / audio_int.h
1 /*
2 * QEMU Audio subsystem header
3 *
4 * Copyright (c) 2003-2005 Vassili Karpov (malc)
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 #ifndef QEMU_AUDIO_INT_H
25 #define QEMU_AUDIO_INT_H
26
27 #ifdef CONFIG_COREAUDIO
28 #define FLOAT_MIXENG
29 /* #define RECIPROCAL */
30 #endif
31 #include "mixeng.h"
32
33 struct audio_pcm_ops;
34
35 typedef enum {
36 AUD_OPT_INT,
37 AUD_OPT_FMT,
38 AUD_OPT_STR,
39 AUD_OPT_BOOL
40 } audio_option_tag_e;
41
42 struct audio_option {
43 const char *name;
44 audio_option_tag_e tag;
45 void *valp;
46 const char *descr;
47 int *overriddenp;
48 int overridden;
49 };
50
51 struct audio_callback {
52 void *opaque;
53 audio_callback_fn fn;
54 };
55
56 struct audio_pcm_info {
57 int bits;
58 int sign;
59 int freq;
60 int nchannels;
61 int align;
62 int shift;
63 int bytes_per_second;
64 int swap_endianness;
65 };
66
67 typedef struct SWVoiceCap SWVoiceCap;
68
69 typedef struct HWVoiceOut {
70 int enabled;
71 int poll_mode;
72 int pending_disable;
73 struct audio_pcm_info info;
74
75 f_sample *clip;
76
77 int rpos;
78 uint64_t ts_helper;
79
80 struct st_sample *mix_buf;
81
82 int samples;
83 QLIST_HEAD (sw_out_listhead, SWVoiceOut) sw_head;
84 QLIST_HEAD (sw_cap_listhead, SWVoiceCap) cap_head;
85 int ctl_caps;
86 struct audio_pcm_ops *pcm_ops;
87 QLIST_ENTRY (HWVoiceOut) entries;
88 } HWVoiceOut;
89
90 typedef struct HWVoiceIn {
91 int enabled;
92 int poll_mode;
93 struct audio_pcm_info info;
94
95 t_sample *conv;
96
97 int wpos;
98 int total_samples_captured;
99 uint64_t ts_helper;
100
101 struct st_sample *conv_buf;
102
103 int samples;
104 QLIST_HEAD (sw_in_listhead, SWVoiceIn) sw_head;
105 int ctl_caps;
106 struct audio_pcm_ops *pcm_ops;
107 QLIST_ENTRY (HWVoiceIn) entries;
108 } HWVoiceIn;
109
110 struct SWVoiceOut {
111 QEMUSoundCard *card;
112 struct audio_pcm_info info;
113 t_sample *conv;
114 int64_t ratio;
115 struct st_sample *buf;
116 void *rate;
117 int total_hw_samples_mixed;
118 int active;
119 int empty;
120 HWVoiceOut *hw;
121 char *name;
122 struct mixeng_volume vol;
123 struct audio_callback callback;
124 QLIST_ENTRY (SWVoiceOut) entries;
125 };
126
127 struct SWVoiceIn {
128 QEMUSoundCard *card;
129 int active;
130 struct audio_pcm_info info;
131 int64_t ratio;
132 void *rate;
133 int total_hw_samples_acquired;
134 struct st_sample *buf;
135 f_sample *clip;
136 HWVoiceIn *hw;
137 char *name;
138 struct mixeng_volume vol;
139 struct audio_callback callback;
140 QLIST_ENTRY (SWVoiceIn) entries;
141 };
142
143 struct audio_driver {
144 const char *name;
145 const char *descr;
146 struct audio_option *options;
147 void *(*init) (void);
148 void (*fini) (void *);
149 struct audio_pcm_ops *pcm_ops;
150 int can_be_default;
151 int max_voices_out;
152 int max_voices_in;
153 int voice_size_out;
154 int voice_size_in;
155 int ctl_caps;
156 };
157
158 struct audio_pcm_ops {
159 int (*init_out)(HWVoiceOut *hw, struct audsettings *as, void *drv_opaque);
160 void (*fini_out)(HWVoiceOut *hw);
161 int (*run_out) (HWVoiceOut *hw, int live);
162 int (*write) (SWVoiceOut *sw, void *buf, int size);
163 int (*ctl_out) (HWVoiceOut *hw, int cmd, ...);
164
165 int (*init_in) (HWVoiceIn *hw, struct audsettings *as, void *drv_opaque);
166 void (*fini_in) (HWVoiceIn *hw);
167 int (*run_in) (HWVoiceIn *hw);
168 int (*read) (SWVoiceIn *sw, void *buf, int size);
169 int (*ctl_in) (HWVoiceIn *hw, int cmd, ...);
170 };
171
172 struct capture_callback {
173 struct audio_capture_ops ops;
174 void *opaque;
175 QLIST_ENTRY (capture_callback) entries;
176 };
177
178 struct CaptureVoiceOut {
179 HWVoiceOut hw;
180 void *buf;
181 QLIST_HEAD (cb_listhead, capture_callback) cb_head;
182 QLIST_ENTRY (CaptureVoiceOut) entries;
183 };
184
185 struct SWVoiceCap {
186 SWVoiceOut sw;
187 CaptureVoiceOut *cap;
188 QLIST_ENTRY (SWVoiceCap) entries;
189 };
190
191 struct AudioState {
192 struct audio_driver *drv;
193 void *drv_opaque;
194
195 QEMUTimer *ts;
196 QLIST_HEAD (card_listhead, QEMUSoundCard) card_head;
197 QLIST_HEAD (hw_in_listhead, HWVoiceIn) hw_head_in;
198 QLIST_HEAD (hw_out_listhead, HWVoiceOut) hw_head_out;
199 QLIST_HEAD (cap_listhead, CaptureVoiceOut) cap_head;
200 int nb_hw_voices_out;
201 int nb_hw_voices_in;
202 int vm_running;
203 };
204
205 extern struct audio_driver no_audio_driver;
206 extern struct audio_driver oss_audio_driver;
207 extern struct audio_driver sdl_audio_driver;
208 extern struct audio_driver wav_audio_driver;
209 extern struct audio_driver alsa_audio_driver;
210 extern struct audio_driver coreaudio_audio_driver;
211 extern struct audio_driver dsound_audio_driver;
212 extern struct audio_driver pa_audio_driver;
213 extern struct audio_driver spice_audio_driver;
214 extern const struct mixeng_volume nominal_volume;
215
216 void audio_pcm_init_info (struct audio_pcm_info *info, struct audsettings *as);
217 void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);
218
219 int audio_pcm_sw_write (SWVoiceOut *sw, void *buf, int len);
220 int audio_pcm_hw_get_live_in (HWVoiceIn *hw);
221
222 int audio_pcm_sw_read (SWVoiceIn *sw, void *buf, int len);
223
224 int audio_pcm_hw_clip_out (HWVoiceOut *hw, void *pcm_buf,
225 int live, int pending);
226
227 int audio_bug (const char *funcname, int cond);
228 void *audio_calloc (const char *funcname, int nmemb, size_t size);
229
230 void audio_run (const char *msg);
231
232 #define VOICE_ENABLE 1
233 #define VOICE_DISABLE 2
234 #define VOICE_VOLUME 3
235
236 #define VOICE_VOLUME_CAP (1 << VOICE_VOLUME)
237
238 static inline int audio_ring_dist (int dst, int src, int len)
239 {
240 return (dst >= src) ? (dst - src) : (len - src + dst);
241 }
242
243 #define dolog(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
244
245 #ifdef DEBUG
246 #define ldebug(fmt, ...) AUD_log(AUDIO_CAP, fmt, ## __VA_ARGS__)
247 #else
248 #define ldebug(fmt, ...) (void)0
249 #endif
250
251 #define AUDIO_STRINGIFY_(n) #n
252 #define AUDIO_STRINGIFY(n) AUDIO_STRINGIFY_(n)
253
254 #if defined _MSC_VER || defined __GNUC__
255 #define AUDIO_FUNC __FUNCTION__
256 #else
257 #define AUDIO_FUNC __FILE__ ":" AUDIO_STRINGIFY (__LINE__)
258 #endif
259
260 #endif /* audio_int.h */