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1 | 85571bc7 | bellard | /*
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2 | 1d14ffa9 | bellard | * QEMU OSS audio driver
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3 | 1d14ffa9 | bellard | *
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4 | 1d14ffa9 | bellard | * Copyright (c) 2003-2005 Vassili Karpov (malc)
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5 | 1d14ffa9 | bellard | *
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6 | 85571bc7 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 85571bc7 | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | 85571bc7 | bellard | * in the Software without restriction, including without limitation the rights
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9 | 85571bc7 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 85571bc7 | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | 85571bc7 | bellard | * furnished to do so, subject to the following conditions:
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12 | 85571bc7 | bellard | *
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13 | 85571bc7 | bellard | * The above copyright notice and this permission notice shall be included in
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14 | 85571bc7 | bellard | * all copies or substantial portions of the Software.
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15 | 85571bc7 | bellard | *
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16 | 85571bc7 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 85571bc7 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 85571bc7 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 85571bc7 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 85571bc7 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 85571bc7 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 85571bc7 | bellard | * THE SOFTWARE.
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23 | 85571bc7 | bellard | */
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24 | f0c757e4 | ths | #include <stdlib.h> |
25 | 85571bc7 | bellard | #include <sys/mman.h> |
26 | 85571bc7 | bellard | #include <sys/types.h> |
27 | 85571bc7 | bellard | #include <sys/ioctl.h> |
28 | f0c757e4 | ths | #ifdef __OpenBSD__
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29 | f0c757e4 | ths | #include <soundcard.h> |
30 | f0c757e4 | ths | #else
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31 | 85571bc7 | bellard | #include <sys/soundcard.h> |
32 | f0c757e4 | ths | #endif
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33 | 87ecb68b | pbrook | #include "qemu-common.h" |
34 | 057fa65c | malc | #include "host-utils.h" |
35 | dd8a5649 | malc | #include "qemu-char.h" |
36 | 87ecb68b | pbrook | #include "audio.h" |
37 | fb065187 | bellard | |
38 | 1d14ffa9 | bellard | #define AUDIO_CAP "oss" |
39 | 1d14ffa9 | bellard | #include "audio_int.h" |
40 | fb065187 | bellard | |
41 | 1d14ffa9 | bellard | typedef struct OSSVoiceOut { |
42 | 1d14ffa9 | bellard | HWVoiceOut hw; |
43 | fb065187 | bellard | void *pcm_buf;
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44 | fb065187 | bellard | int fd;
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45 | 9d168976 | malc | int wpos;
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46 | fb065187 | bellard | int nfrags;
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47 | fb065187 | bellard | int fragsize;
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48 | fb065187 | bellard | int mmapped;
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49 | 9d168976 | malc | int pending;
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50 | 1d14ffa9 | bellard | } OSSVoiceOut; |
51 | 85571bc7 | bellard | |
52 | 1d14ffa9 | bellard | typedef struct OSSVoiceIn { |
53 | 1d14ffa9 | bellard | HWVoiceIn hw; |
54 | 1d14ffa9 | bellard | void *pcm_buf;
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55 | 1d14ffa9 | bellard | int fd;
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56 | 1d14ffa9 | bellard | int nfrags;
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57 | 1d14ffa9 | bellard | int fragsize;
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58 | 1d14ffa9 | bellard | } OSSVoiceIn; |
59 | 85571bc7 | bellard | |
60 | 85571bc7 | bellard | static struct { |
61 | 85571bc7 | bellard | int try_mmap;
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62 | 85571bc7 | bellard | int nfrags;
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63 | 85571bc7 | bellard | int fragsize;
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64 | 1d14ffa9 | bellard | const char *devpath_out; |
65 | 1d14ffa9 | bellard | const char *devpath_in; |
66 | 8ead62cf | bellard | int debug;
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67 | 0b3652bc | malc | int exclusive;
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68 | 0b3652bc | malc | int policy;
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69 | 85571bc7 | bellard | } conf = { |
70 | 85571bc7 | bellard | .try_mmap = 0,
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71 | 85571bc7 | bellard | .nfrags = 4,
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72 | 85571bc7 | bellard | .fragsize = 4096,
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73 | 1d14ffa9 | bellard | .devpath_out = "/dev/dsp",
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74 | 8ead62cf | bellard | .devpath_in = "/dev/dsp",
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75 | 0b3652bc | malc | .debug = 0,
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76 | 0b3652bc | malc | .exclusive = 0,
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77 | 0b3652bc | malc | .policy = 5
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78 | 85571bc7 | bellard | }; |
79 | 85571bc7 | bellard | |
80 | 85571bc7 | bellard | struct oss_params {
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81 | 85571bc7 | bellard | int freq;
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82 | 85571bc7 | bellard | audfmt_e fmt; |
83 | 85571bc7 | bellard | int nchannels;
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84 | 85571bc7 | bellard | int nfrags;
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85 | 85571bc7 | bellard | int fragsize;
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86 | 85571bc7 | bellard | }; |
87 | 85571bc7 | bellard | |
88 | 1d14ffa9 | bellard | static void GCC_FMT_ATTR (2, 3) oss_logerr (int err, const char *fmt, ...) |
89 | 85571bc7 | bellard | { |
90 | 1d14ffa9 | bellard | va_list ap; |
91 | 1d14ffa9 | bellard | |
92 | 571ec3d6 | bellard | va_start (ap, fmt); |
93 | 1d14ffa9 | bellard | AUD_vlog (AUDIO_CAP, fmt, ap); |
94 | 571ec3d6 | bellard | va_end (ap); |
95 | 1d14ffa9 | bellard | |
96 | 1d14ffa9 | bellard | AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err));
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97 | 85571bc7 | bellard | } |
98 | 85571bc7 | bellard | |
99 | 1d14ffa9 | bellard | static void GCC_FMT_ATTR (3, 4) oss_logerr2 ( |
100 | 1d14ffa9 | bellard | int err,
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101 | 1d14ffa9 | bellard | const char *typ, |
102 | 1d14ffa9 | bellard | const char *fmt, |
103 | 1d14ffa9 | bellard | ... |
104 | 1d14ffa9 | bellard | ) |
105 | 1d14ffa9 | bellard | { |
106 | 1d14ffa9 | bellard | va_list ap; |
107 | 1d14ffa9 | bellard | |
108 | c0fe3827 | bellard | AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ);
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109 | 1d14ffa9 | bellard | |
110 | 1d14ffa9 | bellard | va_start (ap, fmt); |
111 | 1d14ffa9 | bellard | AUD_vlog (AUDIO_CAP, fmt, ap); |
112 | 1d14ffa9 | bellard | va_end (ap); |
113 | 1d14ffa9 | bellard | |
114 | 1d14ffa9 | bellard | AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err));
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115 | 1d14ffa9 | bellard | } |
116 | 1d14ffa9 | bellard | |
117 | 1d14ffa9 | bellard | static void oss_anal_close (int *fdp) |
118 | 1d14ffa9 | bellard | { |
119 | 6ebfda13 | malc | int err;
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120 | 6ebfda13 | malc | |
121 | 6ebfda13 | malc | qemu_set_fd_handler (*fdp, NULL, NULL, NULL); |
122 | 6ebfda13 | malc | err = close (*fdp); |
123 | 1d14ffa9 | bellard | if (err) {
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124 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp);
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125 | 1d14ffa9 | bellard | } |
126 | 1d14ffa9 | bellard | *fdp = -1;
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127 | 1d14ffa9 | bellard | } |
128 | 1d14ffa9 | bellard | |
129 | dd8a5649 | malc | static void oss_helper_poll_out (void *opaque) |
130 | dd8a5649 | malc | { |
131 | dd8a5649 | malc | (void) opaque;
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132 | dd8a5649 | malc | audio_run ("oss_poll_out");
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133 | dd8a5649 | malc | } |
134 | dd8a5649 | malc | |
135 | dd8a5649 | malc | static void oss_helper_poll_in (void *opaque) |
136 | dd8a5649 | malc | { |
137 | dd8a5649 | malc | (void) opaque;
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138 | dd8a5649 | malc | audio_run ("oss_poll_in");
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139 | dd8a5649 | malc | } |
140 | dd8a5649 | malc | |
141 | dd8a5649 | malc | static int oss_poll_out (HWVoiceOut *hw) |
142 | dd8a5649 | malc | { |
143 | dd8a5649 | malc | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
144 | dd8a5649 | malc | |
145 | dd8a5649 | malc | return qemu_set_fd_handler (oss->fd, NULL, oss_helper_poll_out, NULL); |
146 | dd8a5649 | malc | } |
147 | dd8a5649 | malc | |
148 | dd8a5649 | malc | static int oss_poll_in (HWVoiceIn *hw) |
149 | dd8a5649 | malc | { |
150 | dd8a5649 | malc | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
151 | dd8a5649 | malc | |
152 | dd8a5649 | malc | return qemu_set_fd_handler (oss->fd, oss_helper_poll_in, NULL, NULL); |
153 | dd8a5649 | malc | } |
154 | dd8a5649 | malc | |
155 | 1d14ffa9 | bellard | static int oss_write (SWVoiceOut *sw, void *buf, int len) |
156 | 1d14ffa9 | bellard | { |
157 | 1d14ffa9 | bellard | return audio_pcm_sw_write (sw, buf, len);
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158 | 1d14ffa9 | bellard | } |
159 | 1d14ffa9 | bellard | |
160 | 1d14ffa9 | bellard | static int aud_to_ossfmt (audfmt_e fmt) |
161 | 85571bc7 | bellard | { |
162 | 85571bc7 | bellard | switch (fmt) {
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163 | 1d14ffa9 | bellard | case AUD_FMT_S8:
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164 | 1d14ffa9 | bellard | return AFMT_S8;
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165 | 1d14ffa9 | bellard | |
166 | 1d14ffa9 | bellard | case AUD_FMT_U8:
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167 | 1d14ffa9 | bellard | return AFMT_U8;
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168 | 1d14ffa9 | bellard | |
169 | 1d14ffa9 | bellard | case AUD_FMT_S16:
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170 | 1d14ffa9 | bellard | return AFMT_S16_LE;
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171 | 1d14ffa9 | bellard | |
172 | 1d14ffa9 | bellard | case AUD_FMT_U16:
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173 | 1d14ffa9 | bellard | return AFMT_U16_LE;
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174 | 1d14ffa9 | bellard | |
175 | 85571bc7 | bellard | default:
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176 | 1d14ffa9 | bellard | dolog ("Internal logic error: Bad audio format %d\n", fmt);
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177 | 1d14ffa9 | bellard | #ifdef DEBUG_AUDIO
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178 | 1d14ffa9 | bellard | abort (); |
179 | 1d14ffa9 | bellard | #endif
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180 | 1d14ffa9 | bellard | return AFMT_U8;
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181 | 85571bc7 | bellard | } |
182 | 85571bc7 | bellard | } |
183 | 85571bc7 | bellard | |
184 | 1d14ffa9 | bellard | static int oss_to_audfmt (int ossfmt, audfmt_e *fmt, int *endianness) |
185 | 85571bc7 | bellard | { |
186 | 1d14ffa9 | bellard | switch (ossfmt) {
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187 | 1d14ffa9 | bellard | case AFMT_S8:
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188 | ca9cc28c | balrog | *endianness = 0;
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189 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S8; |
190 | 1d14ffa9 | bellard | break;
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191 | 1d14ffa9 | bellard | |
192 | 1d14ffa9 | bellard | case AFMT_U8:
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193 | 1d14ffa9 | bellard | *endianness = 0;
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194 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U8; |
195 | 1d14ffa9 | bellard | break;
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196 | 1d14ffa9 | bellard | |
197 | 1d14ffa9 | bellard | case AFMT_S16_LE:
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198 | 1d14ffa9 | bellard | *endianness = 0;
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199 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S16; |
200 | 1d14ffa9 | bellard | break;
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201 | 1d14ffa9 | bellard | |
202 | 1d14ffa9 | bellard | case AFMT_U16_LE:
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203 | 1d14ffa9 | bellard | *endianness = 0;
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204 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U16; |
205 | 1d14ffa9 | bellard | break;
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206 | 1d14ffa9 | bellard | |
207 | 1d14ffa9 | bellard | case AFMT_S16_BE:
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208 | 1d14ffa9 | bellard | *endianness = 1;
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209 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S16; |
210 | 1d14ffa9 | bellard | break;
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211 | 1d14ffa9 | bellard | |
212 | 1d14ffa9 | bellard | case AFMT_U16_BE:
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213 | 1d14ffa9 | bellard | *endianness = 1;
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214 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U16; |
215 | 1d14ffa9 | bellard | break;
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216 | 1d14ffa9 | bellard | |
217 | 85571bc7 | bellard | default:
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218 | 1d14ffa9 | bellard | dolog ("Unrecognized audio format %d\n", ossfmt);
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219 | 1d14ffa9 | bellard | return -1; |
220 | 85571bc7 | bellard | } |
221 | 1d14ffa9 | bellard | |
222 | 1d14ffa9 | bellard | return 0; |
223 | 85571bc7 | bellard | } |
224 | 85571bc7 | bellard | |
225 | c0fe3827 | bellard | #if defined DEBUG_MISMATCHES || defined DEBUG
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226 | 1d14ffa9 | bellard | static void oss_dump_info (struct oss_params *req, struct oss_params *obt) |
227 | 85571bc7 | bellard | { |
228 | 85571bc7 | bellard | dolog ("parameter | requested value | obtained value\n");
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229 | 85571bc7 | bellard | dolog ("format | %10d | %10d\n", req->fmt, obt->fmt);
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230 | 1d14ffa9 | bellard | dolog ("channels | %10d | %10d\n",
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231 | 1d14ffa9 | bellard | req->nchannels, obt->nchannels); |
232 | 85571bc7 | bellard | dolog ("frequency | %10d | %10d\n", req->freq, obt->freq);
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233 | 85571bc7 | bellard | dolog ("nfrags | %10d | %10d\n", req->nfrags, obt->nfrags);
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234 | 1d14ffa9 | bellard | dolog ("fragsize | %10d | %10d\n",
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235 | 1d14ffa9 | bellard | req->fragsize, obt->fragsize); |
236 | 85571bc7 | bellard | } |
237 | 85571bc7 | bellard | #endif
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238 | 85571bc7 | bellard | |
239 | 1d14ffa9 | bellard | static int oss_open (int in, struct oss_params *req, |
240 | 1d14ffa9 | bellard | struct oss_params *obt, int *pfd) |
241 | 85571bc7 | bellard | { |
242 | 85571bc7 | bellard | int fd;
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243 | e726fe7d | malc | #ifdef OSS_GETVERSION
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244 | 0b3652bc | malc | int version;
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245 | e726fe7d | malc | #endif
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246 | 0b3652bc | malc | int oflags = conf.exclusive ? O_EXCL : 0; |
247 | 85571bc7 | bellard | audio_buf_info abinfo; |
248 | 85571bc7 | bellard | int fmt, freq, nchannels;
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249 | 1d14ffa9 | bellard | const char *dspname = in ? conf.devpath_in : conf.devpath_out; |
250 | 1d14ffa9 | bellard | const char *typ = in ? "ADC" : "DAC"; |
251 | 85571bc7 | bellard | |
252 | 2182349d | malc | /* Kludge needed to have working mmap on Linux */
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253 | 0b3652bc | malc | oflags |= conf.try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY); |
254 | 0b3652bc | malc | |
255 | 2182349d | malc | fd = open (dspname, oflags | O_NONBLOCK); |
256 | 85571bc7 | bellard | if (-1 == fd) { |
257 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname);
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258 | 85571bc7 | bellard | return -1; |
259 | 85571bc7 | bellard | } |
260 | 85571bc7 | bellard | |
261 | 85571bc7 | bellard | freq = req->freq; |
262 | 85571bc7 | bellard | nchannels = req->nchannels; |
263 | 85571bc7 | bellard | fmt = req->fmt; |
264 | 85571bc7 | bellard | |
265 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_SAMPLESIZE, &fmt)) {
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266 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set sample size %d\n", req->fmt);
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267 | 85571bc7 | bellard | goto err;
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268 | 85571bc7 | bellard | } |
269 | 85571bc7 | bellard | |
270 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_CHANNELS, &nchannels)) {
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271 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set number of channels %d\n",
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272 | 1d14ffa9 | bellard | req->nchannels); |
273 | 85571bc7 | bellard | goto err;
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274 | 85571bc7 | bellard | } |
275 | 85571bc7 | bellard | |
276 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_SPEED, &freq)) {
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277 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set frequency %d\n", req->freq);
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278 | 85571bc7 | bellard | goto err;
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279 | 85571bc7 | bellard | } |
280 | 85571bc7 | bellard | |
281 | 902e2b51 | malc | if (ioctl (fd, SNDCTL_DSP_NONBLOCK, NULL)) { |
282 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n");
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283 | 85571bc7 | bellard | goto err;
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284 | 85571bc7 | bellard | } |
285 | 85571bc7 | bellard | |
286 | e726fe7d | malc | #ifdef OSS_GETVERSION
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287 | 0b3652bc | malc | if (ioctl (fd, OSS_GETVERSION, &version)) {
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288 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to get OSS version\n");
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289 | 0b3652bc | malc | version = 0;
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290 | 0b3652bc | malc | } |
291 | 0b3652bc | malc | |
292 | 0b3652bc | malc | if (conf.debug) {
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293 | 0b3652bc | malc | dolog ("OSS version = %#x\n", version);
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294 | 0b3652bc | malc | } |
295 | e726fe7d | malc | #endif
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296 | 0b3652bc | malc | |
297 | 0b3652bc | malc | #ifdef SNDCTL_DSP_POLICY
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298 | e726fe7d | malc | if (conf.policy >= 0 |
299 | e726fe7d | malc | #ifdef OSS_GETVERSION
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300 | e726fe7d | malc | && version >= 0x040000
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301 | e726fe7d | malc | #else
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302 | e726fe7d | malc | 0
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303 | e726fe7d | malc | #endif
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304 | e726fe7d | malc | ) |
305 | e726fe7d | malc | { |
306 | 0b3652bc | malc | int policy = conf.policy;
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307 | 0b3652bc | malc | if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
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308 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to set timing policy to %d\n",
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309 | 0b3652bc | malc | conf.policy); |
310 | 0b3652bc | malc | goto err;
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311 | 0b3652bc | malc | } |
312 | 0b3652bc | malc | } |
313 | 0b3652bc | malc | else
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314 | 0b3652bc | malc | #endif
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315 | 0b3652bc | malc | { |
316 | 0b3652bc | malc | int mmmmssss = (req->nfrags << 16) | ctz32 (req->fragsize); |
317 | 0b3652bc | malc | if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
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318 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n",
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319 | 0b3652bc | malc | req->nfrags, req->fragsize); |
320 | 0b3652bc | malc | goto err;
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321 | 0b3652bc | malc | } |
322 | 85571bc7 | bellard | } |
323 | 85571bc7 | bellard | |
324 | 1d14ffa9 | bellard | if (ioctl (fd, in ? SNDCTL_DSP_GETISPACE : SNDCTL_DSP_GETOSPACE, &abinfo)) {
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325 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to get buffer length\n");
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326 | 85571bc7 | bellard | goto err;
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327 | 85571bc7 | bellard | } |
328 | 85571bc7 | bellard | |
329 | 29ddf27b | malc | if (!abinfo.fragstotal || !abinfo.fragsize) {
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330 | 29ddf27b | malc | AUD_log (AUDIO_CAP, "Returned bogus buffer information(%d, %d) for %s\n",
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331 | 29ddf27b | malc | abinfo.fragstotal, abinfo.fragsize, typ); |
332 | 29ddf27b | malc | goto err;
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333 | 29ddf27b | malc | } |
334 | 29ddf27b | malc | |
335 | 85571bc7 | bellard | obt->fmt = fmt; |
336 | 85571bc7 | bellard | obt->nchannels = nchannels; |
337 | 85571bc7 | bellard | obt->freq = freq; |
338 | 85571bc7 | bellard | obt->nfrags = abinfo.fragstotal; |
339 | 85571bc7 | bellard | obt->fragsize = abinfo.fragsize; |
340 | 85571bc7 | bellard | *pfd = fd; |
341 | 85571bc7 | bellard | |
342 | c0fe3827 | bellard | #ifdef DEBUG_MISMATCHES
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343 | 85571bc7 | bellard | if ((req->fmt != obt->fmt) ||
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344 | 85571bc7 | bellard | (req->nchannels != obt->nchannels) || |
345 | 85571bc7 | bellard | (req->freq != obt->freq) || |
346 | 85571bc7 | bellard | (req->fragsize != obt->fragsize) || |
347 | 85571bc7 | bellard | (req->nfrags != obt->nfrags)) { |
348 | 85571bc7 | bellard | dolog ("Audio parameters mismatch\n");
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349 | 1d14ffa9 | bellard | oss_dump_info (req, obt); |
350 | 85571bc7 | bellard | } |
351 | c0fe3827 | bellard | #endif
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352 | 85571bc7 | bellard | |
353 | 1d14ffa9 | bellard | #ifdef DEBUG
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354 | 1d14ffa9 | bellard | oss_dump_info (req, obt); |
355 | 85571bc7 | bellard | #endif
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356 | 85571bc7 | bellard | return 0; |
357 | 85571bc7 | bellard | |
358 | 1d14ffa9 | bellard | err:
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359 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
360 | 85571bc7 | bellard | return -1; |
361 | 85571bc7 | bellard | } |
362 | 85571bc7 | bellard | |
363 | 9d168976 | malc | static void oss_write_pending (OSSVoiceOut *oss) |
364 | 9d168976 | malc | { |
365 | 9d168976 | malc | HWVoiceOut *hw = &oss->hw; |
366 | 9d168976 | malc | |
367 | 9d168976 | malc | if (oss->mmapped) {
|
368 | 9d168976 | malc | return;
|
369 | 9d168976 | malc | } |
370 | 9d168976 | malc | |
371 | 9d168976 | malc | while (oss->pending) {
|
372 | 9d168976 | malc | int samples_written;
|
373 | 9d168976 | malc | ssize_t bytes_written; |
374 | 9d168976 | malc | int samples_till_end = hw->samples - oss->wpos;
|
375 | 9d168976 | malc | int samples_to_write = audio_MIN (oss->pending, samples_till_end);
|
376 | 9d168976 | malc | int bytes_to_write = samples_to_write << hw->info.shift;
|
377 | 9d168976 | malc | void *pcm = advance (oss->pcm_buf, oss->wpos << hw->info.shift);
|
378 | 9d168976 | malc | |
379 | 9d168976 | malc | bytes_written = write (oss->fd, pcm, bytes_to_write); |
380 | 9d168976 | malc | if (bytes_written < 0) { |
381 | 9d168976 | malc | if (errno != EAGAIN) {
|
382 | 9d168976 | malc | oss_logerr (errno, "failed to write %d bytes\n",
|
383 | 9d168976 | malc | bytes_to_write); |
384 | 9d168976 | malc | } |
385 | 9d168976 | malc | break;
|
386 | 9d168976 | malc | } |
387 | 9d168976 | malc | |
388 | 9d168976 | malc | if (bytes_written & hw->info.align) {
|
389 | 9d168976 | malc | dolog ("misaligned write asked for %d, but got %zd\n",
|
390 | 9d168976 | malc | bytes_to_write, bytes_written); |
391 | 9d168976 | malc | return;
|
392 | 9d168976 | malc | } |
393 | 9d168976 | malc | |
394 | 9d168976 | malc | samples_written = bytes_written >> hw->info.shift; |
395 | 9d168976 | malc | oss->pending -= samples_written; |
396 | 9d168976 | malc | oss->wpos = (oss->wpos + samples_written) % hw->samples; |
397 | 9d168976 | malc | if (bytes_written - bytes_to_write) {
|
398 | 9d168976 | malc | break;
|
399 | 9d168976 | malc | } |
400 | 9d168976 | malc | } |
401 | 9d168976 | malc | } |
402 | 9d168976 | malc | |
403 | bdff253c | malc | static int oss_run_out (HWVoiceOut *hw, int live) |
404 | 85571bc7 | bellard | { |
405 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
406 | bdff253c | malc | int err, decr;
|
407 | 85571bc7 | bellard | struct audio_buf_info abinfo;
|
408 | 85571bc7 | bellard | struct count_info cntinfo;
|
409 | c0fe3827 | bellard | int bufsize;
|
410 | 85571bc7 | bellard | |
411 | c0fe3827 | bellard | bufsize = hw->samples << hw->info.shift; |
412 | c0fe3827 | bellard | |
413 | 85571bc7 | bellard | if (oss->mmapped) {
|
414 | 54762b73 | malc | int bytes, pos;
|
415 | 85571bc7 | bellard | |
416 | 85571bc7 | bellard | err = ioctl (oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo); |
417 | 85571bc7 | bellard | if (err < 0) { |
418 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
419 | 1d14ffa9 | bellard | return 0; |
420 | 85571bc7 | bellard | } |
421 | 85571bc7 | bellard | |
422 | 54762b73 | malc | pos = hw->rpos << hw->info.shift; |
423 | 54762b73 | malc | bytes = audio_ring_dist (cntinfo.ptr, pos, bufsize); |
424 | 1d14ffa9 | bellard | decr = audio_MIN (bytes >> hw->info.shift, live); |
425 | 85571bc7 | bellard | } |
426 | 85571bc7 | bellard | else {
|
427 | 85571bc7 | bellard | err = ioctl (oss->fd, SNDCTL_DSP_GETOSPACE, &abinfo); |
428 | 85571bc7 | bellard | if (err < 0) { |
429 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
430 | 1d14ffa9 | bellard | return 0; |
431 | 1d14ffa9 | bellard | } |
432 | 1d14ffa9 | bellard | |
433 | 8ead62cf | bellard | if (abinfo.bytes > bufsize) {
|
434 | 8ead62cf | bellard | if (conf.debug) {
|
435 | 8ead62cf | bellard | dolog ("warning: Invalid available size, size=%d bufsize=%d\n"
|
436 | 155a8ad3 | malc | "please report your OS/audio hw to av1474@comtv.ru\n",
|
437 | 8ead62cf | bellard | abinfo.bytes, bufsize); |
438 | 8ead62cf | bellard | } |
439 | 8ead62cf | bellard | abinfo.bytes = bufsize; |
440 | 8ead62cf | bellard | } |
441 | 8ead62cf | bellard | |
442 | 8ead62cf | bellard | if (abinfo.bytes < 0) { |
443 | 8ead62cf | bellard | if (conf.debug) {
|
444 | 8ead62cf | bellard | dolog ("warning: Invalid available size, size=%d bufsize=%d\n",
|
445 | 8ead62cf | bellard | abinfo.bytes, bufsize); |
446 | 8ead62cf | bellard | } |
447 | 1d14ffa9 | bellard | return 0; |
448 | 85571bc7 | bellard | } |
449 | 85571bc7 | bellard | |
450 | 1d14ffa9 | bellard | decr = audio_MIN (abinfo.bytes >> hw->info.shift, live); |
451 | 1d14ffa9 | bellard | if (!decr) {
|
452 | 1d14ffa9 | bellard | return 0; |
453 | 1d14ffa9 | bellard | } |
454 | 85571bc7 | bellard | } |
455 | 85571bc7 | bellard | |
456 | 9d168976 | malc | decr = audio_pcm_hw_clip_out (hw, oss->pcm_buf, decr, oss->pending); |
457 | 9d168976 | malc | oss->pending += decr; |
458 | 9d168976 | malc | oss_write_pending (oss); |
459 | 85571bc7 | bellard | |
460 | 1d14ffa9 | bellard | return decr;
|
461 | 85571bc7 | bellard | } |
462 | 85571bc7 | bellard | |
463 | 1d14ffa9 | bellard | static void oss_fini_out (HWVoiceOut *hw) |
464 | 85571bc7 | bellard | { |
465 | 85571bc7 | bellard | int err;
|
466 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
467 | 85571bc7 | bellard | |
468 | 1d14ffa9 | bellard | ldebug ("oss_fini\n");
|
469 | 1d14ffa9 | bellard | oss_anal_close (&oss->fd); |
470 | 85571bc7 | bellard | |
471 | 85571bc7 | bellard | if (oss->pcm_buf) {
|
472 | 85571bc7 | bellard | if (oss->mmapped) {
|
473 | c0fe3827 | bellard | err = munmap (oss->pcm_buf, hw->samples << hw->info.shift); |
474 | 85571bc7 | bellard | if (err) {
|
475 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to unmap buffer %p, size %d\n",
|
476 | c0fe3827 | bellard | oss->pcm_buf, hw->samples << hw->info.shift); |
477 | 85571bc7 | bellard | } |
478 | 85571bc7 | bellard | } |
479 | 85571bc7 | bellard | else {
|
480 | 85571bc7 | bellard | qemu_free (oss->pcm_buf); |
481 | 85571bc7 | bellard | } |
482 | 85571bc7 | bellard | oss->pcm_buf = NULL;
|
483 | 85571bc7 | bellard | } |
484 | 85571bc7 | bellard | } |
485 | 85571bc7 | bellard | |
486 | 1ea879e5 | malc | static int oss_init_out (HWVoiceOut *hw, struct audsettings *as) |
487 | 85571bc7 | bellard | { |
488 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
489 | 85571bc7 | bellard | struct oss_params req, obt;
|
490 | 1d14ffa9 | bellard | int endianness;
|
491 | 1d14ffa9 | bellard | int err;
|
492 | 1d14ffa9 | bellard | int fd;
|
493 | 1d14ffa9 | bellard | audfmt_e effective_fmt; |
494 | 1ea879e5 | malc | struct audsettings obt_as;
|
495 | 85571bc7 | bellard | |
496 | 571ec3d6 | bellard | oss->fd = -1;
|
497 | 571ec3d6 | bellard | |
498 | c0fe3827 | bellard | req.fmt = aud_to_ossfmt (as->fmt); |
499 | c0fe3827 | bellard | req.freq = as->freq; |
500 | c0fe3827 | bellard | req.nchannels = as->nchannels; |
501 | 85571bc7 | bellard | req.fragsize = conf.fragsize; |
502 | 85571bc7 | bellard | req.nfrags = conf.nfrags; |
503 | 85571bc7 | bellard | |
504 | 1d14ffa9 | bellard | if (oss_open (0, &req, &obt, &fd)) { |
505 | 85571bc7 | bellard | return -1; |
506 | 1d14ffa9 | bellard | } |
507 | 85571bc7 | bellard | |
508 | 1d14ffa9 | bellard | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
509 | 1d14ffa9 | bellard | if (err) {
|
510 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
511 | 1d14ffa9 | bellard | return -1; |
512 | 1d14ffa9 | bellard | } |
513 | 85571bc7 | bellard | |
514 | c0fe3827 | bellard | obt_as.freq = obt.freq; |
515 | c0fe3827 | bellard | obt_as.nchannels = obt.nchannels; |
516 | c0fe3827 | bellard | obt_as.fmt = effective_fmt; |
517 | d929eba5 | bellard | obt_as.endianness = endianness; |
518 | c0fe3827 | bellard | |
519 | d929eba5 | bellard | audio_pcm_init_info (&hw->info, &obt_as); |
520 | 85571bc7 | bellard | oss->nfrags = obt.nfrags; |
521 | 85571bc7 | bellard | oss->fragsize = obt.fragsize; |
522 | c0fe3827 | bellard | |
523 | c0fe3827 | bellard | if (obt.nfrags * obt.fragsize & hw->info.align) {
|
524 | c0fe3827 | bellard | dolog ("warning: Misaligned DAC buffer, size %d, alignment %d\n",
|
525 | c0fe3827 | bellard | obt.nfrags * obt.fragsize, hw->info.align + 1);
|
526 | c0fe3827 | bellard | } |
527 | c0fe3827 | bellard | |
528 | c0fe3827 | bellard | hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift; |
529 | 85571bc7 | bellard | |
530 | 85571bc7 | bellard | oss->mmapped = 0;
|
531 | 85571bc7 | bellard | if (conf.try_mmap) {
|
532 | c0fe3827 | bellard | oss->pcm_buf = mmap ( |
533 | 660f11be | Blue Swirl | NULL,
|
534 | c0fe3827 | bellard | hw->samples << hw->info.shift, |
535 | c0fe3827 | bellard | PROT_READ | PROT_WRITE, |
536 | c0fe3827 | bellard | MAP_SHARED, |
537 | c0fe3827 | bellard | fd, |
538 | c0fe3827 | bellard | 0
|
539 | c0fe3827 | bellard | ); |
540 | 85571bc7 | bellard | if (oss->pcm_buf == MAP_FAILED) {
|
541 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to map %d bytes of DAC\n",
|
542 | c0fe3827 | bellard | hw->samples << hw->info.shift); |
543 | 54762b73 | malc | } |
544 | 54762b73 | malc | else {
|
545 | 85571bc7 | bellard | int err;
|
546 | 85571bc7 | bellard | int trig = 0; |
547 | 1d14ffa9 | bellard | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
548 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
|
549 | 85571bc7 | bellard | } |
550 | 44a095a7 | bellard | else {
|
551 | 44a095a7 | bellard | trig = PCM_ENABLE_OUTPUT; |
552 | 1d14ffa9 | bellard | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
553 | 1d14ffa9 | bellard | oss_logerr ( |
554 | 1d14ffa9 | bellard | errno, |
555 | 1d14ffa9 | bellard | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
556 | 1d14ffa9 | bellard | ); |
557 | 44a095a7 | bellard | } |
558 | 44a095a7 | bellard | else {
|
559 | 44a095a7 | bellard | oss->mmapped = 1;
|
560 | 44a095a7 | bellard | } |
561 | 85571bc7 | bellard | } |
562 | 85571bc7 | bellard | |
563 | 44a095a7 | bellard | if (!oss->mmapped) {
|
564 | c0fe3827 | bellard | err = munmap (oss->pcm_buf, hw->samples << hw->info.shift); |
565 | 44a095a7 | bellard | if (err) {
|
566 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to unmap buffer %p size %d\n",
|
567 | c0fe3827 | bellard | oss->pcm_buf, hw->samples << hw->info.shift); |
568 | 44a095a7 | bellard | } |
569 | 85571bc7 | bellard | } |
570 | 85571bc7 | bellard | } |
571 | 85571bc7 | bellard | } |
572 | 85571bc7 | bellard | |
573 | 85571bc7 | bellard | if (!oss->mmapped) {
|
574 | c0fe3827 | bellard | oss->pcm_buf = audio_calloc ( |
575 | c0fe3827 | bellard | AUDIO_FUNC, |
576 | c0fe3827 | bellard | hw->samples, |
577 | c0fe3827 | bellard | 1 << hw->info.shift
|
578 | c0fe3827 | bellard | ); |
579 | 85571bc7 | bellard | if (!oss->pcm_buf) {
|
580 | b41cffbe | bellard | dolog ( |
581 | b41cffbe | bellard | "Could not allocate DAC buffer (%d samples, each %d bytes)\n",
|
582 | b41cffbe | bellard | hw->samples, |
583 | b41cffbe | bellard | 1 << hw->info.shift
|
584 | b41cffbe | bellard | ); |
585 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
586 | 85571bc7 | bellard | return -1; |
587 | 85571bc7 | bellard | } |
588 | 85571bc7 | bellard | } |
589 | 85571bc7 | bellard | |
590 | 1d14ffa9 | bellard | oss->fd = fd; |
591 | 85571bc7 | bellard | return 0; |
592 | 85571bc7 | bellard | } |
593 | 85571bc7 | bellard | |
594 | 1d14ffa9 | bellard | static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...) |
595 | 85571bc7 | bellard | { |
596 | 85571bc7 | bellard | int trig;
|
597 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
598 | 85571bc7 | bellard | |
599 | 85571bc7 | bellard | switch (cmd) {
|
600 | 85571bc7 | bellard | case VOICE_ENABLE:
|
601 | 301901b5 | malc | { |
602 | 301901b5 | malc | va_list ap; |
603 | 301901b5 | malc | int poll_mode;
|
604 | dd8a5649 | malc | |
605 | 301901b5 | malc | va_start (ap, cmd); |
606 | 301901b5 | malc | poll_mode = va_arg (ap, int);
|
607 | 301901b5 | malc | va_end (ap); |
608 | dd8a5649 | malc | |
609 | 301901b5 | malc | ldebug ("enabling voice\n");
|
610 | 301901b5 | malc | if (poll_mode && oss_poll_out (hw)) {
|
611 | 301901b5 | malc | poll_mode = 0;
|
612 | 301901b5 | malc | } |
613 | 301901b5 | malc | hw->poll_mode = poll_mode; |
614 | 301901b5 | malc | |
615 | 301901b5 | malc | if (!oss->mmapped) {
|
616 | 301901b5 | malc | return 0; |
617 | 301901b5 | malc | } |
618 | 301901b5 | malc | |
619 | 301901b5 | malc | audio_pcm_info_clear_buf (&hw->info, oss->pcm_buf, hw->samples); |
620 | 301901b5 | malc | trig = PCM_ENABLE_OUTPUT; |
621 | 301901b5 | malc | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
622 | 301901b5 | malc | oss_logerr ( |
623 | 301901b5 | malc | errno, |
624 | 301901b5 | malc | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
625 | 301901b5 | malc | ); |
626 | 301901b5 | malc | return -1; |
627 | 301901b5 | malc | } |
628 | 85571bc7 | bellard | } |
629 | 85571bc7 | bellard | break;
|
630 | 85571bc7 | bellard | |
631 | 85571bc7 | bellard | case VOICE_DISABLE:
|
632 | dd8a5649 | malc | if (hw->poll_mode) {
|
633 | dd8a5649 | malc | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
634 | dd8a5649 | malc | hw->poll_mode = 0;
|
635 | dd8a5649 | malc | } |
636 | dd8a5649 | malc | |
637 | dd8a5649 | malc | if (!oss->mmapped) {
|
638 | dd8a5649 | malc | return 0; |
639 | dd8a5649 | malc | } |
640 | dd8a5649 | malc | |
641 | 85571bc7 | bellard | ldebug ("disabling voice\n");
|
642 | 85571bc7 | bellard | trig = 0;
|
643 | 85571bc7 | bellard | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
644 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
|
645 | 85571bc7 | bellard | return -1; |
646 | 85571bc7 | bellard | } |
647 | 85571bc7 | bellard | break;
|
648 | 85571bc7 | bellard | } |
649 | 85571bc7 | bellard | return 0; |
650 | 85571bc7 | bellard | } |
651 | 85571bc7 | bellard | |
652 | 1ea879e5 | malc | static int oss_init_in (HWVoiceIn *hw, struct audsettings *as) |
653 | 1d14ffa9 | bellard | { |
654 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
655 | 1d14ffa9 | bellard | struct oss_params req, obt;
|
656 | 1d14ffa9 | bellard | int endianness;
|
657 | 1d14ffa9 | bellard | int err;
|
658 | 1d14ffa9 | bellard | int fd;
|
659 | 1d14ffa9 | bellard | audfmt_e effective_fmt; |
660 | 1ea879e5 | malc | struct audsettings obt_as;
|
661 | 1d14ffa9 | bellard | |
662 | 571ec3d6 | bellard | oss->fd = -1;
|
663 | 571ec3d6 | bellard | |
664 | c0fe3827 | bellard | req.fmt = aud_to_ossfmt (as->fmt); |
665 | c0fe3827 | bellard | req.freq = as->freq; |
666 | c0fe3827 | bellard | req.nchannels = as->nchannels; |
667 | 1d14ffa9 | bellard | req.fragsize = conf.fragsize; |
668 | 1d14ffa9 | bellard | req.nfrags = conf.nfrags; |
669 | 1d14ffa9 | bellard | if (oss_open (1, &req, &obt, &fd)) { |
670 | 1d14ffa9 | bellard | return -1; |
671 | 1d14ffa9 | bellard | } |
672 | 1d14ffa9 | bellard | |
673 | 1d14ffa9 | bellard | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
674 | 1d14ffa9 | bellard | if (err) {
|
675 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
676 | 1d14ffa9 | bellard | return -1; |
677 | 1d14ffa9 | bellard | } |
678 | 1d14ffa9 | bellard | |
679 | c0fe3827 | bellard | obt_as.freq = obt.freq; |
680 | c0fe3827 | bellard | obt_as.nchannels = obt.nchannels; |
681 | c0fe3827 | bellard | obt_as.fmt = effective_fmt; |
682 | d929eba5 | bellard | obt_as.endianness = endianness; |
683 | c0fe3827 | bellard | |
684 | d929eba5 | bellard | audio_pcm_init_info (&hw->info, &obt_as); |
685 | 1d14ffa9 | bellard | oss->nfrags = obt.nfrags; |
686 | 1d14ffa9 | bellard | oss->fragsize = obt.fragsize; |
687 | c0fe3827 | bellard | |
688 | c0fe3827 | bellard | if (obt.nfrags * obt.fragsize & hw->info.align) {
|
689 | c0fe3827 | bellard | dolog ("warning: Misaligned ADC buffer, size %d, alignment %d\n",
|
690 | c0fe3827 | bellard | obt.nfrags * obt.fragsize, hw->info.align + 1);
|
691 | c0fe3827 | bellard | } |
692 | c0fe3827 | bellard | |
693 | c0fe3827 | bellard | hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift; |
694 | c0fe3827 | bellard | oss->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
695 | 1d14ffa9 | bellard | if (!oss->pcm_buf) {
|
696 | b41cffbe | bellard | dolog ("Could not allocate ADC buffer (%d samples, each %d bytes)\n",
|
697 | b41cffbe | bellard | hw->samples, 1 << hw->info.shift);
|
698 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
699 | 1d14ffa9 | bellard | return -1; |
700 | 1d14ffa9 | bellard | } |
701 | 1d14ffa9 | bellard | |
702 | 1d14ffa9 | bellard | oss->fd = fd; |
703 | 1d14ffa9 | bellard | return 0; |
704 | 1d14ffa9 | bellard | } |
705 | 1d14ffa9 | bellard | |
706 | 1d14ffa9 | bellard | static void oss_fini_in (HWVoiceIn *hw) |
707 | 1d14ffa9 | bellard | { |
708 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
709 | 1d14ffa9 | bellard | |
710 | 1d14ffa9 | bellard | oss_anal_close (&oss->fd); |
711 | 1d14ffa9 | bellard | |
712 | 1d14ffa9 | bellard | if (oss->pcm_buf) {
|
713 | 1d14ffa9 | bellard | qemu_free (oss->pcm_buf); |
714 | 1d14ffa9 | bellard | oss->pcm_buf = NULL;
|
715 | 1d14ffa9 | bellard | } |
716 | 1d14ffa9 | bellard | } |
717 | 1d14ffa9 | bellard | |
718 | 1d14ffa9 | bellard | static int oss_run_in (HWVoiceIn *hw) |
719 | 1d14ffa9 | bellard | { |
720 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
721 | 1d14ffa9 | bellard | int hwshift = hw->info.shift;
|
722 | 1d14ffa9 | bellard | int i;
|
723 | 1d14ffa9 | bellard | int live = audio_pcm_hw_get_live_in (hw);
|
724 | 1d14ffa9 | bellard | int dead = hw->samples - live;
|
725 | 1d14ffa9 | bellard | size_t read_samples = 0;
|
726 | 1d14ffa9 | bellard | struct {
|
727 | 1d14ffa9 | bellard | int add;
|
728 | 1d14ffa9 | bellard | int len;
|
729 | 1d14ffa9 | bellard | } bufs[2] = {
|
730 | 98f9f48c | malc | { .add = hw->wpos, .len = 0 },
|
731 | 98f9f48c | malc | { .add = 0, .len = 0 } |
732 | 1d14ffa9 | bellard | }; |
733 | 1d14ffa9 | bellard | |
734 | 1d14ffa9 | bellard | if (!dead) {
|
735 | 1d14ffa9 | bellard | return 0; |
736 | 1d14ffa9 | bellard | } |
737 | 1d14ffa9 | bellard | |
738 | 1d14ffa9 | bellard | if (hw->wpos + dead > hw->samples) {
|
739 | 1d14ffa9 | bellard | bufs[0].len = (hw->samples - hw->wpos) << hwshift;
|
740 | 1d14ffa9 | bellard | bufs[1].len = (dead - (hw->samples - hw->wpos)) << hwshift;
|
741 | 1d14ffa9 | bellard | } |
742 | 1d14ffa9 | bellard | else {
|
743 | 1d14ffa9 | bellard | bufs[0].len = dead << hwshift;
|
744 | 1d14ffa9 | bellard | } |
745 | 1d14ffa9 | bellard | |
746 | 1d14ffa9 | bellard | for (i = 0; i < 2; ++i) { |
747 | 1d14ffa9 | bellard | ssize_t nread; |
748 | 1d14ffa9 | bellard | |
749 | 1d14ffa9 | bellard | if (bufs[i].len) {
|
750 | 1d14ffa9 | bellard | void *p = advance (oss->pcm_buf, bufs[i].add << hwshift);
|
751 | 1d14ffa9 | bellard | nread = read (oss->fd, p, bufs[i].len); |
752 | 1d14ffa9 | bellard | |
753 | 1d14ffa9 | bellard | if (nread > 0) { |
754 | 1d14ffa9 | bellard | if (nread & hw->info.align) {
|
755 | b41cffbe | bellard | dolog ("warning: Misaligned read %zd (requested %d), "
|
756 | 1d14ffa9 | bellard | "alignment %d\n", nread, bufs[i].add << hwshift,
|
757 | 1d14ffa9 | bellard | hw->info.align + 1);
|
758 | 1d14ffa9 | bellard | } |
759 | 1d14ffa9 | bellard | read_samples += nread >> hwshift; |
760 | 1d14ffa9 | bellard | hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift, |
761 | 1d14ffa9 | bellard | &nominal_volume); |
762 | 1d14ffa9 | bellard | } |
763 | 1d14ffa9 | bellard | |
764 | 1d14ffa9 | bellard | if (bufs[i].len - nread) {
|
765 | 1d14ffa9 | bellard | if (nread == -1) { |
766 | 1d14ffa9 | bellard | switch (errno) {
|
767 | 1d14ffa9 | bellard | case EINTR:
|
768 | 1d14ffa9 | bellard | case EAGAIN:
|
769 | 1d14ffa9 | bellard | break;
|
770 | 1d14ffa9 | bellard | default:
|
771 | 1d14ffa9 | bellard | oss_logerr ( |
772 | 1d14ffa9 | bellard | errno, |
773 | 1d14ffa9 | bellard | "Failed to read %d bytes of audio (to %p)\n",
|
774 | 1d14ffa9 | bellard | bufs[i].len, p |
775 | 1d14ffa9 | bellard | ); |
776 | 1d14ffa9 | bellard | break;
|
777 | 1d14ffa9 | bellard | } |
778 | 1d14ffa9 | bellard | } |
779 | 1d14ffa9 | bellard | break;
|
780 | 1d14ffa9 | bellard | } |
781 | 1d14ffa9 | bellard | } |
782 | 1d14ffa9 | bellard | } |
783 | 1d14ffa9 | bellard | |
784 | 1d14ffa9 | bellard | hw->wpos = (hw->wpos + read_samples) % hw->samples; |
785 | 1d14ffa9 | bellard | return read_samples;
|
786 | 1d14ffa9 | bellard | } |
787 | 1d14ffa9 | bellard | |
788 | 1d14ffa9 | bellard | static int oss_read (SWVoiceIn *sw, void *buf, int size) |
789 | 1d14ffa9 | bellard | { |
790 | 1d14ffa9 | bellard | return audio_pcm_sw_read (sw, buf, size);
|
791 | 1d14ffa9 | bellard | } |
792 | 1d14ffa9 | bellard | |
793 | 1d14ffa9 | bellard | static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...) |
794 | 1d14ffa9 | bellard | { |
795 | dd8a5649 | malc | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
796 | dd8a5649 | malc | |
797 | dd8a5649 | malc | switch (cmd) {
|
798 | dd8a5649 | malc | case VOICE_ENABLE:
|
799 | a628b869 | malc | { |
800 | a628b869 | malc | va_list ap; |
801 | a628b869 | malc | int poll_mode;
|
802 | a628b869 | malc | |
803 | a628b869 | malc | va_start (ap, cmd); |
804 | a628b869 | malc | poll_mode = va_arg (ap, int);
|
805 | a628b869 | malc | va_end (ap); |
806 | a628b869 | malc | |
807 | a628b869 | malc | if (poll_mode && oss_poll_in (hw)) {
|
808 | a628b869 | malc | poll_mode = 0;
|
809 | a628b869 | malc | } |
810 | a628b869 | malc | hw->poll_mode = poll_mode; |
811 | dd8a5649 | malc | } |
812 | dd8a5649 | malc | break;
|
813 | dd8a5649 | malc | |
814 | dd8a5649 | malc | case VOICE_DISABLE:
|
815 | dd8a5649 | malc | if (hw->poll_mode) {
|
816 | dd8a5649 | malc | hw->poll_mode = 0;
|
817 | dd8a5649 | malc | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
818 | dd8a5649 | malc | } |
819 | dd8a5649 | malc | break;
|
820 | dd8a5649 | malc | } |
821 | 1d14ffa9 | bellard | return 0; |
822 | 1d14ffa9 | bellard | } |
823 | 1d14ffa9 | bellard | |
824 | 85571bc7 | bellard | static void *oss_audio_init (void) |
825 | 85571bc7 | bellard | { |
826 | 85571bc7 | bellard | return &conf;
|
827 | 85571bc7 | bellard | } |
828 | 85571bc7 | bellard | |
829 | 85571bc7 | bellard | static void oss_audio_fini (void *opaque) |
830 | 85571bc7 | bellard | { |
831 | 1d14ffa9 | bellard | (void) opaque;
|
832 | 85571bc7 | bellard | } |
833 | 85571bc7 | bellard | |
834 | 1d14ffa9 | bellard | static struct audio_option oss_options[] = { |
835 | 98f9f48c | malc | { |
836 | 98f9f48c | malc | .name = "FRAGSIZE",
|
837 | 98f9f48c | malc | .tag = AUD_OPT_INT, |
838 | 98f9f48c | malc | .valp = &conf.fragsize, |
839 | 98f9f48c | malc | .descr = "Fragment size in bytes"
|
840 | 98f9f48c | malc | }, |
841 | 98f9f48c | malc | { |
842 | 98f9f48c | malc | .name = "NFRAGS",
|
843 | 98f9f48c | malc | .tag = AUD_OPT_INT, |
844 | 98f9f48c | malc | .valp = &conf.nfrags, |
845 | 98f9f48c | malc | .descr = "Number of fragments"
|
846 | 98f9f48c | malc | }, |
847 | 98f9f48c | malc | { |
848 | 98f9f48c | malc | .name = "MMAP",
|
849 | 98f9f48c | malc | .tag = AUD_OPT_BOOL, |
850 | 98f9f48c | malc | .valp = &conf.try_mmap, |
851 | 98f9f48c | malc | .descr = "Try using memory mapped access"
|
852 | 98f9f48c | malc | }, |
853 | 98f9f48c | malc | { |
854 | 98f9f48c | malc | .name = "DAC_DEV",
|
855 | 98f9f48c | malc | .tag = AUD_OPT_STR, |
856 | 98f9f48c | malc | .valp = &conf.devpath_out, |
857 | 98f9f48c | malc | .descr = "Path to DAC device"
|
858 | 98f9f48c | malc | }, |
859 | 98f9f48c | malc | { |
860 | 98f9f48c | malc | .name = "ADC_DEV",
|
861 | 98f9f48c | malc | .tag = AUD_OPT_STR, |
862 | 98f9f48c | malc | .valp = &conf.devpath_in, |
863 | 98f9f48c | malc | .descr = "Path to ADC device"
|
864 | 98f9f48c | malc | }, |
865 | 98f9f48c | malc | { |
866 | 0b3652bc | malc | .name = "EXCLUSIVE",
|
867 | 0b3652bc | malc | .tag = AUD_OPT_BOOL, |
868 | 0b3652bc | malc | .valp = &conf.exclusive, |
869 | 0b3652bc | malc | .descr = "Open device in exclusive mode (vmix wont work)"
|
870 | 0b3652bc | malc | }, |
871 | 0b3652bc | malc | #ifdef SNDCTL_DSP_POLICY
|
872 | 0b3652bc | malc | { |
873 | 0b3652bc | malc | .name = "POLICY",
|
874 | 0b3652bc | malc | .tag = AUD_OPT_INT, |
875 | 0b3652bc | malc | .valp = &conf.policy, |
876 | 0b3652bc | malc | .descr = "Set the timing policy of the device, -1 to use fragment mode",
|
877 | 0b3652bc | malc | }, |
878 | 0b3652bc | malc | #endif
|
879 | 0b3652bc | malc | { |
880 | 98f9f48c | malc | .name = "DEBUG",
|
881 | 98f9f48c | malc | .tag = AUD_OPT_BOOL, |
882 | 98f9f48c | malc | .valp = &conf.debug, |
883 | 98f9f48c | malc | .descr = "Turn on some debugging messages"
|
884 | 98f9f48c | malc | }, |
885 | 2700efa3 | Juan Quintela | { /* End of list */ }
|
886 | 1d14ffa9 | bellard | }; |
887 | 1d14ffa9 | bellard | |
888 | 35f4b58c | blueswir1 | static struct audio_pcm_ops oss_pcm_ops = { |
889 | 1dd3e4d1 | Juan Quintela | .init_out = oss_init_out, |
890 | 1dd3e4d1 | Juan Quintela | .fini_out = oss_fini_out, |
891 | 1dd3e4d1 | Juan Quintela | .run_out = oss_run_out, |
892 | 1dd3e4d1 | Juan Quintela | .write = oss_write, |
893 | 1dd3e4d1 | Juan Quintela | .ctl_out = oss_ctl_out, |
894 | 1dd3e4d1 | Juan Quintela | |
895 | 1dd3e4d1 | Juan Quintela | .init_in = oss_init_in, |
896 | 1dd3e4d1 | Juan Quintela | .fini_in = oss_fini_in, |
897 | 1dd3e4d1 | Juan Quintela | .run_in = oss_run_in, |
898 | 1dd3e4d1 | Juan Quintela | .read = oss_read, |
899 | 1dd3e4d1 | Juan Quintela | .ctl_in = oss_ctl_in |
900 | 85571bc7 | bellard | }; |
901 | 85571bc7 | bellard | |
902 | 1d14ffa9 | bellard | struct audio_driver oss_audio_driver = {
|
903 | bee37f32 | Juan Quintela | .name = "oss",
|
904 | bee37f32 | Juan Quintela | .descr = "OSS http://www.opensound.com",
|
905 | bee37f32 | Juan Quintela | .options = oss_options, |
906 | bee37f32 | Juan Quintela | .init = oss_audio_init, |
907 | bee37f32 | Juan Quintela | .fini = oss_audio_fini, |
908 | bee37f32 | Juan Quintela | .pcm_ops = &oss_pcm_ops, |
909 | bee37f32 | Juan Quintela | .can_be_default = 1,
|
910 | bee37f32 | Juan Quintela | .max_voices_out = INT_MAX, |
911 | bee37f32 | Juan Quintela | .max_voices_in = INT_MAX, |
912 | bee37f32 | Juan Quintela | .voice_size_out = sizeof (OSSVoiceOut),
|
913 | bee37f32 | Juan Quintela | .voice_size_in = sizeof (OSSVoiceIn)
|
914 | 85571bc7 | bellard | }; |