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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 | fb065187 | bellard | int nfrags;
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46 | fb065187 | bellard | int fragsize;
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47 | fb065187 | bellard | int mmapped;
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48 | fb065187 | bellard | int old_optr;
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49 | 1d14ffa9 | bellard | } OSSVoiceOut; |
50 | 85571bc7 | bellard | |
51 | 1d14ffa9 | bellard | typedef struct OSSVoiceIn { |
52 | 1d14ffa9 | bellard | HWVoiceIn hw; |
53 | 1d14ffa9 | bellard | void *pcm_buf;
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54 | 1d14ffa9 | bellard | int fd;
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55 | 1d14ffa9 | bellard | int nfrags;
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56 | 1d14ffa9 | bellard | int fragsize;
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57 | 1d14ffa9 | bellard | int old_optr;
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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 | 1d14ffa9 | bellard | int err = close (*fdp);
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120 | 1d14ffa9 | bellard | if (err) {
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121 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp);
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122 | 1d14ffa9 | bellard | } |
123 | dd8a5649 | malc | qemu_set_fd_handler (*fdp, NULL, NULL, NULL); |
124 | 1d14ffa9 | bellard | *fdp = -1;
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125 | 1d14ffa9 | bellard | } |
126 | 1d14ffa9 | bellard | |
127 | dd8a5649 | malc | static void oss_helper_poll_out (void *opaque) |
128 | dd8a5649 | malc | { |
129 | dd8a5649 | malc | (void) opaque;
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130 | dd8a5649 | malc | audio_run ("oss_poll_out");
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131 | dd8a5649 | malc | } |
132 | dd8a5649 | malc | |
133 | dd8a5649 | malc | static void oss_helper_poll_in (void *opaque) |
134 | dd8a5649 | malc | { |
135 | dd8a5649 | malc | (void) opaque;
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136 | dd8a5649 | malc | audio_run ("oss_poll_in");
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137 | dd8a5649 | malc | } |
138 | dd8a5649 | malc | |
139 | dd8a5649 | malc | static int oss_poll_out (HWVoiceOut *hw) |
140 | dd8a5649 | malc | { |
141 | dd8a5649 | malc | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
142 | dd8a5649 | malc | |
143 | dd8a5649 | malc | return qemu_set_fd_handler (oss->fd, NULL, oss_helper_poll_out, NULL); |
144 | dd8a5649 | malc | } |
145 | dd8a5649 | malc | |
146 | dd8a5649 | malc | static int oss_poll_in (HWVoiceIn *hw) |
147 | dd8a5649 | malc | { |
148 | dd8a5649 | malc | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
149 | dd8a5649 | malc | |
150 | dd8a5649 | malc | return qemu_set_fd_handler (oss->fd, oss_helper_poll_in, NULL, NULL); |
151 | dd8a5649 | malc | } |
152 | dd8a5649 | malc | |
153 | 1d14ffa9 | bellard | static int oss_write (SWVoiceOut *sw, void *buf, int len) |
154 | 1d14ffa9 | bellard | { |
155 | 1d14ffa9 | bellard | return audio_pcm_sw_write (sw, buf, len);
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156 | 1d14ffa9 | bellard | } |
157 | 1d14ffa9 | bellard | |
158 | 1d14ffa9 | bellard | static int aud_to_ossfmt (audfmt_e fmt) |
159 | 85571bc7 | bellard | { |
160 | 85571bc7 | bellard | switch (fmt) {
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161 | 1d14ffa9 | bellard | case AUD_FMT_S8:
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162 | 1d14ffa9 | bellard | return AFMT_S8;
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163 | 1d14ffa9 | bellard | |
164 | 1d14ffa9 | bellard | case AUD_FMT_U8:
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165 | 1d14ffa9 | bellard | return AFMT_U8;
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166 | 1d14ffa9 | bellard | |
167 | 1d14ffa9 | bellard | case AUD_FMT_S16:
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168 | 1d14ffa9 | bellard | return AFMT_S16_LE;
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169 | 1d14ffa9 | bellard | |
170 | 1d14ffa9 | bellard | case AUD_FMT_U16:
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171 | 1d14ffa9 | bellard | return AFMT_U16_LE;
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172 | 1d14ffa9 | bellard | |
173 | 85571bc7 | bellard | default:
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174 | 1d14ffa9 | bellard | dolog ("Internal logic error: Bad audio format %d\n", fmt);
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175 | 1d14ffa9 | bellard | #ifdef DEBUG_AUDIO
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176 | 1d14ffa9 | bellard | abort (); |
177 | 1d14ffa9 | bellard | #endif
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178 | 1d14ffa9 | bellard | return AFMT_U8;
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179 | 85571bc7 | bellard | } |
180 | 85571bc7 | bellard | } |
181 | 85571bc7 | bellard | |
182 | 1d14ffa9 | bellard | static int oss_to_audfmt (int ossfmt, audfmt_e *fmt, int *endianness) |
183 | 85571bc7 | bellard | { |
184 | 1d14ffa9 | bellard | switch (ossfmt) {
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185 | 1d14ffa9 | bellard | case AFMT_S8:
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186 | ca9cc28c | balrog | *endianness = 0;
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187 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S8; |
188 | 1d14ffa9 | bellard | break;
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189 | 1d14ffa9 | bellard | |
190 | 1d14ffa9 | bellard | case AFMT_U8:
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191 | 1d14ffa9 | bellard | *endianness = 0;
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192 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U8; |
193 | 1d14ffa9 | bellard | break;
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194 | 1d14ffa9 | bellard | |
195 | 1d14ffa9 | bellard | case AFMT_S16_LE:
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196 | 1d14ffa9 | bellard | *endianness = 0;
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197 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S16; |
198 | 1d14ffa9 | bellard | break;
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199 | 1d14ffa9 | bellard | |
200 | 1d14ffa9 | bellard | case AFMT_U16_LE:
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201 | 1d14ffa9 | bellard | *endianness = 0;
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202 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U16; |
203 | 1d14ffa9 | bellard | break;
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204 | 1d14ffa9 | bellard | |
205 | 1d14ffa9 | bellard | case AFMT_S16_BE:
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206 | 1d14ffa9 | bellard | *endianness = 1;
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207 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S16; |
208 | 1d14ffa9 | bellard | break;
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209 | 1d14ffa9 | bellard | |
210 | 1d14ffa9 | bellard | case AFMT_U16_BE:
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211 | 1d14ffa9 | bellard | *endianness = 1;
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212 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U16; |
213 | 1d14ffa9 | bellard | break;
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214 | 1d14ffa9 | bellard | |
215 | 85571bc7 | bellard | default:
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216 | 1d14ffa9 | bellard | dolog ("Unrecognized audio format %d\n", ossfmt);
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217 | 1d14ffa9 | bellard | return -1; |
218 | 85571bc7 | bellard | } |
219 | 1d14ffa9 | bellard | |
220 | 1d14ffa9 | bellard | return 0; |
221 | 85571bc7 | bellard | } |
222 | 85571bc7 | bellard | |
223 | c0fe3827 | bellard | #if defined DEBUG_MISMATCHES || defined DEBUG
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224 | 1d14ffa9 | bellard | static void oss_dump_info (struct oss_params *req, struct oss_params *obt) |
225 | 85571bc7 | bellard | { |
226 | 85571bc7 | bellard | dolog ("parameter | requested value | obtained value\n");
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227 | 85571bc7 | bellard | dolog ("format | %10d | %10d\n", req->fmt, obt->fmt);
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228 | 1d14ffa9 | bellard | dolog ("channels | %10d | %10d\n",
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229 | 1d14ffa9 | bellard | req->nchannels, obt->nchannels); |
230 | 85571bc7 | bellard | dolog ("frequency | %10d | %10d\n", req->freq, obt->freq);
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231 | 85571bc7 | bellard | dolog ("nfrags | %10d | %10d\n", req->nfrags, obt->nfrags);
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232 | 1d14ffa9 | bellard | dolog ("fragsize | %10d | %10d\n",
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233 | 1d14ffa9 | bellard | req->fragsize, obt->fragsize); |
234 | 85571bc7 | bellard | } |
235 | 85571bc7 | bellard | #endif
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236 | 85571bc7 | bellard | |
237 | 1d14ffa9 | bellard | static int oss_open (int in, struct oss_params *req, |
238 | 1d14ffa9 | bellard | struct oss_params *obt, int *pfd) |
239 | 85571bc7 | bellard | { |
240 | 85571bc7 | bellard | int fd;
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241 | 0b3652bc | malc | int version;
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242 | 0b3652bc | malc | int oflags = conf.exclusive ? O_EXCL : 0; |
243 | 85571bc7 | bellard | audio_buf_info abinfo; |
244 | 85571bc7 | bellard | int fmt, freq, nchannels;
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245 | 1d14ffa9 | bellard | const char *dspname = in ? conf.devpath_in : conf.devpath_out; |
246 | 1d14ffa9 | bellard | const char *typ = in ? "ADC" : "DAC"; |
247 | 85571bc7 | bellard | |
248 | 2182349d | malc | /* Kludge needed to have working mmap on Linux */
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249 | 0b3652bc | malc | oflags |= conf.try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY); |
250 | 0b3652bc | malc | |
251 | 2182349d | malc | fd = open (dspname, oflags | O_NONBLOCK); |
252 | 85571bc7 | bellard | if (-1 == fd) { |
253 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname);
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254 | 85571bc7 | bellard | return -1; |
255 | 85571bc7 | bellard | } |
256 | 85571bc7 | bellard | |
257 | 85571bc7 | bellard | freq = req->freq; |
258 | 85571bc7 | bellard | nchannels = req->nchannels; |
259 | 85571bc7 | bellard | fmt = req->fmt; |
260 | 85571bc7 | bellard | |
261 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_SAMPLESIZE, &fmt)) {
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262 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set sample size %d\n", req->fmt);
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263 | 85571bc7 | bellard | goto err;
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264 | 85571bc7 | bellard | } |
265 | 85571bc7 | bellard | |
266 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_CHANNELS, &nchannels)) {
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267 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set number of channels %d\n",
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268 | 1d14ffa9 | bellard | req->nchannels); |
269 | 85571bc7 | bellard | goto err;
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270 | 85571bc7 | bellard | } |
271 | 85571bc7 | bellard | |
272 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_SPEED, &freq)) {
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273 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set frequency %d\n", req->freq);
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274 | 85571bc7 | bellard | goto err;
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275 | 85571bc7 | bellard | } |
276 | 85571bc7 | bellard | |
277 | 902e2b51 | malc | if (ioctl (fd, SNDCTL_DSP_NONBLOCK, NULL)) { |
278 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n");
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279 | 85571bc7 | bellard | goto err;
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280 | 85571bc7 | bellard | } |
281 | 85571bc7 | bellard | |
282 | 0b3652bc | malc | if (ioctl (fd, OSS_GETVERSION, &version)) {
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283 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to get OSS version\n");
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284 | 0b3652bc | malc | version = 0;
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285 | 0b3652bc | malc | } |
286 | 0b3652bc | malc | |
287 | 0b3652bc | malc | if (conf.debug) {
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288 | 0b3652bc | malc | dolog ("OSS version = %#x\n", version);
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289 | 0b3652bc | malc | } |
290 | 0b3652bc | malc | |
291 | 0b3652bc | malc | #ifdef SNDCTL_DSP_POLICY
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292 | 0b3652bc | malc | if (conf.policy >= 0 && version >= 0x040000) { |
293 | 0b3652bc | malc | int policy = conf.policy;
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294 | 0b3652bc | malc | if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
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295 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to set timing policy to %d\n",
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296 | 0b3652bc | malc | conf.policy); |
297 | 0b3652bc | malc | goto err;
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298 | 0b3652bc | malc | } |
299 | 0b3652bc | malc | } |
300 | 0b3652bc | malc | else
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301 | 0b3652bc | malc | #endif
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302 | 0b3652bc | malc | { |
303 | 0b3652bc | malc | int mmmmssss = (req->nfrags << 16) | ctz32 (req->fragsize); |
304 | 0b3652bc | malc | if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
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305 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n",
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306 | 0b3652bc | malc | req->nfrags, req->fragsize); |
307 | 0b3652bc | malc | goto err;
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308 | 0b3652bc | malc | } |
309 | 85571bc7 | bellard | } |
310 | 85571bc7 | bellard | |
311 | 1d14ffa9 | bellard | if (ioctl (fd, in ? SNDCTL_DSP_GETISPACE : SNDCTL_DSP_GETOSPACE, &abinfo)) {
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312 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to get buffer length\n");
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313 | 85571bc7 | bellard | goto err;
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314 | 85571bc7 | bellard | } |
315 | 85571bc7 | bellard | |
316 | 29ddf27b | malc | if (!abinfo.fragstotal || !abinfo.fragsize) {
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317 | 29ddf27b | malc | AUD_log (AUDIO_CAP, "Returned bogus buffer information(%d, %d) for %s\n",
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318 | 29ddf27b | malc | abinfo.fragstotal, abinfo.fragsize, typ); |
319 | 29ddf27b | malc | goto err;
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320 | 29ddf27b | malc | } |
321 | 29ddf27b | malc | |
322 | 85571bc7 | bellard | obt->fmt = fmt; |
323 | 85571bc7 | bellard | obt->nchannels = nchannels; |
324 | 85571bc7 | bellard | obt->freq = freq; |
325 | 85571bc7 | bellard | obt->nfrags = abinfo.fragstotal; |
326 | 85571bc7 | bellard | obt->fragsize = abinfo.fragsize; |
327 | 85571bc7 | bellard | *pfd = fd; |
328 | 85571bc7 | bellard | |
329 | c0fe3827 | bellard | #ifdef DEBUG_MISMATCHES
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330 | 85571bc7 | bellard | if ((req->fmt != obt->fmt) ||
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331 | 85571bc7 | bellard | (req->nchannels != obt->nchannels) || |
332 | 85571bc7 | bellard | (req->freq != obt->freq) || |
333 | 85571bc7 | bellard | (req->fragsize != obt->fragsize) || |
334 | 85571bc7 | bellard | (req->nfrags != obt->nfrags)) { |
335 | 85571bc7 | bellard | dolog ("Audio parameters mismatch\n");
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336 | 1d14ffa9 | bellard | oss_dump_info (req, obt); |
337 | 85571bc7 | bellard | } |
338 | c0fe3827 | bellard | #endif
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339 | 85571bc7 | bellard | |
340 | 1d14ffa9 | bellard | #ifdef DEBUG
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341 | 1d14ffa9 | bellard | oss_dump_info (req, obt); |
342 | 85571bc7 | bellard | #endif
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343 | 85571bc7 | bellard | return 0; |
344 | 85571bc7 | bellard | |
345 | 1d14ffa9 | bellard | err:
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346 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
347 | 85571bc7 | bellard | return -1; |
348 | 85571bc7 | bellard | } |
349 | 85571bc7 | bellard | |
350 | 1d14ffa9 | bellard | static int oss_run_out (HWVoiceOut *hw) |
351 | 85571bc7 | bellard | { |
352 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
353 | 85571bc7 | bellard | int err, rpos, live, decr;
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354 | 85571bc7 | bellard | int samples;
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355 | 85571bc7 | bellard | uint8_t *dst; |
356 | 1ea879e5 | malc | struct st_sample *src;
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357 | 85571bc7 | bellard | struct audio_buf_info abinfo;
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358 | 85571bc7 | bellard | struct count_info cntinfo;
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359 | c0fe3827 | bellard | int bufsize;
|
360 | 85571bc7 | bellard | |
361 | 1d14ffa9 | bellard | live = audio_pcm_hw_get_live_out (hw); |
362 | 1d14ffa9 | bellard | if (!live) {
|
363 | 1d14ffa9 | bellard | return 0; |
364 | 1d14ffa9 | bellard | } |
365 | 85571bc7 | bellard | |
366 | c0fe3827 | bellard | bufsize = hw->samples << hw->info.shift; |
367 | c0fe3827 | bellard | |
368 | 85571bc7 | bellard | if (oss->mmapped) {
|
369 | 85571bc7 | bellard | int bytes;
|
370 | 85571bc7 | bellard | |
371 | 85571bc7 | bellard | err = ioctl (oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo); |
372 | 85571bc7 | bellard | if (err < 0) { |
373 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
374 | 1d14ffa9 | bellard | return 0; |
375 | 85571bc7 | bellard | } |
376 | 85571bc7 | bellard | |
377 | 85571bc7 | bellard | if (cntinfo.ptr == oss->old_optr) {
|
378 | 1d14ffa9 | bellard | if (abs (hw->samples - live) < 64) { |
379 | c0fe3827 | bellard | dolog ("warning: Overrun\n");
|
380 | 1d14ffa9 | bellard | } |
381 | 1d14ffa9 | bellard | return 0; |
382 | 85571bc7 | bellard | } |
383 | 85571bc7 | bellard | |
384 | 85571bc7 | bellard | if (cntinfo.ptr > oss->old_optr) {
|
385 | 85571bc7 | bellard | bytes = cntinfo.ptr - oss->old_optr; |
386 | 85571bc7 | bellard | } |
387 | 85571bc7 | bellard | else {
|
388 | c0fe3827 | bellard | bytes = bufsize + cntinfo.ptr - oss->old_optr; |
389 | 85571bc7 | bellard | } |
390 | 85571bc7 | bellard | |
391 | 1d14ffa9 | bellard | decr = audio_MIN (bytes >> hw->info.shift, live); |
392 | 85571bc7 | bellard | } |
393 | 85571bc7 | bellard | else {
|
394 | 85571bc7 | bellard | err = ioctl (oss->fd, SNDCTL_DSP_GETOSPACE, &abinfo); |
395 | 85571bc7 | bellard | if (err < 0) { |
396 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
397 | 1d14ffa9 | bellard | return 0; |
398 | 1d14ffa9 | bellard | } |
399 | 1d14ffa9 | bellard | |
400 | 8ead62cf | bellard | if (abinfo.bytes > bufsize) {
|
401 | 8ead62cf | bellard | if (conf.debug) {
|
402 | 8ead62cf | bellard | dolog ("warning: Invalid available size, size=%d bufsize=%d\n"
|
403 | 8ead62cf | bellard | "please report your OS/audio hw to malc@pulsesoft.com\n",
|
404 | 8ead62cf | bellard | abinfo.bytes, bufsize); |
405 | 8ead62cf | bellard | } |
406 | 8ead62cf | bellard | abinfo.bytes = bufsize; |
407 | 8ead62cf | bellard | } |
408 | 8ead62cf | bellard | |
409 | 8ead62cf | bellard | if (abinfo.bytes < 0) { |
410 | 8ead62cf | bellard | if (conf.debug) {
|
411 | 8ead62cf | bellard | dolog ("warning: Invalid available size, size=%d bufsize=%d\n",
|
412 | 8ead62cf | bellard | abinfo.bytes, bufsize); |
413 | 8ead62cf | bellard | } |
414 | 1d14ffa9 | bellard | return 0; |
415 | 85571bc7 | bellard | } |
416 | 85571bc7 | bellard | |
417 | 1d14ffa9 | bellard | decr = audio_MIN (abinfo.bytes >> hw->info.shift, live); |
418 | 1d14ffa9 | bellard | if (!decr) {
|
419 | 1d14ffa9 | bellard | return 0; |
420 | 1d14ffa9 | bellard | } |
421 | 85571bc7 | bellard | } |
422 | 85571bc7 | bellard | |
423 | 85571bc7 | bellard | samples = decr; |
424 | 85571bc7 | bellard | rpos = hw->rpos; |
425 | 85571bc7 | bellard | while (samples) {
|
426 | 85571bc7 | bellard | int left_till_end_samples = hw->samples - rpos;
|
427 | 85571bc7 | bellard | int convert_samples = audio_MIN (samples, left_till_end_samples);
|
428 | 85571bc7 | bellard | |
429 | 1d14ffa9 | bellard | src = hw->mix_buf + rpos; |
430 | 1d14ffa9 | bellard | dst = advance (oss->pcm_buf, rpos << hw->info.shift); |
431 | 85571bc7 | bellard | |
432 | 85571bc7 | bellard | hw->clip (dst, src, convert_samples); |
433 | 85571bc7 | bellard | if (!oss->mmapped) {
|
434 | 85571bc7 | bellard | int written;
|
435 | 85571bc7 | bellard | |
436 | 1d14ffa9 | bellard | written = write (oss->fd, dst, convert_samples << hw->info.shift); |
437 | 85571bc7 | bellard | /* XXX: follow errno recommendations ? */
|
438 | 85571bc7 | bellard | if (written == -1) { |
439 | 1d14ffa9 | bellard | oss_logerr ( |
440 | 1d14ffa9 | bellard | errno, |
441 | 1d14ffa9 | bellard | "Failed to write %d bytes of audio data from %p\n",
|
442 | 1d14ffa9 | bellard | convert_samples << hw->info.shift, |
443 | 1d14ffa9 | bellard | dst |
444 | 1d14ffa9 | bellard | ); |
445 | 85571bc7 | bellard | continue;
|
446 | 85571bc7 | bellard | } |
447 | 85571bc7 | bellard | |
448 | 1d14ffa9 | bellard | if (written != convert_samples << hw->info.shift) {
|
449 | 1d14ffa9 | bellard | int wsamples = written >> hw->info.shift;
|
450 | 1d14ffa9 | bellard | int wbytes = wsamples << hw->info.shift;
|
451 | 85571bc7 | bellard | if (wbytes != written) {
|
452 | c0fe3827 | bellard | dolog ("warning: Misaligned write %d (requested %d), "
|
453 | 1d14ffa9 | bellard | "alignment %d\n",
|
454 | 1d14ffa9 | bellard | wbytes, written, hw->info.align + 1);
|
455 | 85571bc7 | bellard | } |
456 | 1d14ffa9 | bellard | decr -= wsamples; |
457 | 85571bc7 | bellard | rpos = (rpos + wsamples) % hw->samples; |
458 | 85571bc7 | bellard | break;
|
459 | 85571bc7 | bellard | } |
460 | 85571bc7 | bellard | } |
461 | 1d14ffa9 | bellard | |
462 | 85571bc7 | bellard | rpos = (rpos + convert_samples) % hw->samples; |
463 | 85571bc7 | bellard | samples -= convert_samples; |
464 | 85571bc7 | bellard | } |
465 | 85571bc7 | bellard | if (oss->mmapped) {
|
466 | 85571bc7 | bellard | oss->old_optr = cntinfo.ptr; |
467 | 85571bc7 | bellard | } |
468 | 85571bc7 | bellard | |
469 | 85571bc7 | bellard | hw->rpos = rpos; |
470 | 1d14ffa9 | bellard | return decr;
|
471 | 85571bc7 | bellard | } |
472 | 85571bc7 | bellard | |
473 | 1d14ffa9 | bellard | static void oss_fini_out (HWVoiceOut *hw) |
474 | 85571bc7 | bellard | { |
475 | 85571bc7 | bellard | int err;
|
476 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
477 | 85571bc7 | bellard | |
478 | 1d14ffa9 | bellard | ldebug ("oss_fini\n");
|
479 | 1d14ffa9 | bellard | oss_anal_close (&oss->fd); |
480 | 85571bc7 | bellard | |
481 | 85571bc7 | bellard | if (oss->pcm_buf) {
|
482 | 85571bc7 | bellard | if (oss->mmapped) {
|
483 | c0fe3827 | bellard | err = munmap (oss->pcm_buf, hw->samples << hw->info.shift); |
484 | 85571bc7 | bellard | if (err) {
|
485 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to unmap buffer %p, size %d\n",
|
486 | c0fe3827 | bellard | oss->pcm_buf, hw->samples << hw->info.shift); |
487 | 85571bc7 | bellard | } |
488 | 85571bc7 | bellard | } |
489 | 85571bc7 | bellard | else {
|
490 | 85571bc7 | bellard | qemu_free (oss->pcm_buf); |
491 | 85571bc7 | bellard | } |
492 | 85571bc7 | bellard | oss->pcm_buf = NULL;
|
493 | 85571bc7 | bellard | } |
494 | 85571bc7 | bellard | } |
495 | 85571bc7 | bellard | |
496 | 1ea879e5 | malc | static int oss_init_out (HWVoiceOut *hw, struct audsettings *as) |
497 | 85571bc7 | bellard | { |
498 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
499 | 85571bc7 | bellard | struct oss_params req, obt;
|
500 | 1d14ffa9 | bellard | int endianness;
|
501 | 1d14ffa9 | bellard | int err;
|
502 | 1d14ffa9 | bellard | int fd;
|
503 | 1d14ffa9 | bellard | audfmt_e effective_fmt; |
504 | 1ea879e5 | malc | struct audsettings obt_as;
|
505 | 85571bc7 | bellard | |
506 | 571ec3d6 | bellard | oss->fd = -1;
|
507 | 571ec3d6 | bellard | |
508 | c0fe3827 | bellard | req.fmt = aud_to_ossfmt (as->fmt); |
509 | c0fe3827 | bellard | req.freq = as->freq; |
510 | c0fe3827 | bellard | req.nchannels = as->nchannels; |
511 | 85571bc7 | bellard | req.fragsize = conf.fragsize; |
512 | 85571bc7 | bellard | req.nfrags = conf.nfrags; |
513 | 85571bc7 | bellard | |
514 | 1d14ffa9 | bellard | if (oss_open (0, &req, &obt, &fd)) { |
515 | 85571bc7 | bellard | return -1; |
516 | 1d14ffa9 | bellard | } |
517 | 85571bc7 | bellard | |
518 | 1d14ffa9 | bellard | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
519 | 1d14ffa9 | bellard | if (err) {
|
520 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
521 | 1d14ffa9 | bellard | return -1; |
522 | 1d14ffa9 | bellard | } |
523 | 85571bc7 | bellard | |
524 | c0fe3827 | bellard | obt_as.freq = obt.freq; |
525 | c0fe3827 | bellard | obt_as.nchannels = obt.nchannels; |
526 | c0fe3827 | bellard | obt_as.fmt = effective_fmt; |
527 | d929eba5 | bellard | obt_as.endianness = endianness; |
528 | c0fe3827 | bellard | |
529 | d929eba5 | bellard | audio_pcm_init_info (&hw->info, &obt_as); |
530 | 85571bc7 | bellard | oss->nfrags = obt.nfrags; |
531 | 85571bc7 | bellard | oss->fragsize = obt.fragsize; |
532 | c0fe3827 | bellard | |
533 | c0fe3827 | bellard | if (obt.nfrags * obt.fragsize & hw->info.align) {
|
534 | c0fe3827 | bellard | dolog ("warning: Misaligned DAC buffer, size %d, alignment %d\n",
|
535 | c0fe3827 | bellard | obt.nfrags * obt.fragsize, hw->info.align + 1);
|
536 | c0fe3827 | bellard | } |
537 | c0fe3827 | bellard | |
538 | c0fe3827 | bellard | hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift; |
539 | 85571bc7 | bellard | |
540 | 85571bc7 | bellard | oss->mmapped = 0;
|
541 | 85571bc7 | bellard | if (conf.try_mmap) {
|
542 | c0fe3827 | bellard | oss->pcm_buf = mmap ( |
543 | 660f11be | Blue Swirl | NULL,
|
544 | c0fe3827 | bellard | hw->samples << hw->info.shift, |
545 | c0fe3827 | bellard | PROT_READ | PROT_WRITE, |
546 | c0fe3827 | bellard | MAP_SHARED, |
547 | c0fe3827 | bellard | fd, |
548 | c0fe3827 | bellard | 0
|
549 | c0fe3827 | bellard | ); |
550 | 85571bc7 | bellard | if (oss->pcm_buf == MAP_FAILED) {
|
551 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to map %d bytes of DAC\n",
|
552 | c0fe3827 | bellard | hw->samples << hw->info.shift); |
553 | 44a095a7 | bellard | } else {
|
554 | 85571bc7 | bellard | int err;
|
555 | 85571bc7 | bellard | int trig = 0; |
556 | 1d14ffa9 | bellard | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
557 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
|
558 | 85571bc7 | bellard | } |
559 | 44a095a7 | bellard | else {
|
560 | 44a095a7 | bellard | trig = PCM_ENABLE_OUTPUT; |
561 | 1d14ffa9 | bellard | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
562 | 1d14ffa9 | bellard | oss_logerr ( |
563 | 1d14ffa9 | bellard | errno, |
564 | 1d14ffa9 | bellard | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
565 | 1d14ffa9 | bellard | ); |
566 | 44a095a7 | bellard | } |
567 | 44a095a7 | bellard | else {
|
568 | 44a095a7 | bellard | oss->mmapped = 1;
|
569 | 44a095a7 | bellard | } |
570 | 85571bc7 | bellard | } |
571 | 85571bc7 | bellard | |
572 | 44a095a7 | bellard | if (!oss->mmapped) {
|
573 | c0fe3827 | bellard | err = munmap (oss->pcm_buf, hw->samples << hw->info.shift); |
574 | 44a095a7 | bellard | if (err) {
|
575 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to unmap buffer %p size %d\n",
|
576 | c0fe3827 | bellard | oss->pcm_buf, hw->samples << hw->info.shift); |
577 | 44a095a7 | bellard | } |
578 | 85571bc7 | bellard | } |
579 | 85571bc7 | bellard | } |
580 | 85571bc7 | bellard | } |
581 | 85571bc7 | bellard | |
582 | 85571bc7 | bellard | if (!oss->mmapped) {
|
583 | c0fe3827 | bellard | oss->pcm_buf = audio_calloc ( |
584 | c0fe3827 | bellard | AUDIO_FUNC, |
585 | c0fe3827 | bellard | hw->samples, |
586 | c0fe3827 | bellard | 1 << hw->info.shift
|
587 | c0fe3827 | bellard | ); |
588 | 85571bc7 | bellard | if (!oss->pcm_buf) {
|
589 | b41cffbe | bellard | dolog ( |
590 | b41cffbe | bellard | "Could not allocate DAC buffer (%d samples, each %d bytes)\n",
|
591 | b41cffbe | bellard | hw->samples, |
592 | b41cffbe | bellard | 1 << hw->info.shift
|
593 | b41cffbe | bellard | ); |
594 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
595 | 85571bc7 | bellard | return -1; |
596 | 85571bc7 | bellard | } |
597 | 85571bc7 | bellard | } |
598 | 85571bc7 | bellard | |
599 | 1d14ffa9 | bellard | oss->fd = fd; |
600 | 85571bc7 | bellard | return 0; |
601 | 85571bc7 | bellard | } |
602 | 85571bc7 | bellard | |
603 | 1d14ffa9 | bellard | static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...) |
604 | 85571bc7 | bellard | { |
605 | 85571bc7 | bellard | int trig;
|
606 | dd8a5649 | malc | va_list ap; |
607 | dd8a5649 | malc | int poll_mode;
|
608 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
609 | 85571bc7 | bellard | |
610 | dd8a5649 | malc | va_start (ap, cmd); |
611 | dd8a5649 | malc | poll_mode = va_arg (ap, int);
|
612 | dd8a5649 | malc | va_end (ap); |
613 | 85571bc7 | bellard | |
614 | 85571bc7 | bellard | switch (cmd) {
|
615 | 85571bc7 | bellard | case VOICE_ENABLE:
|
616 | 85571bc7 | bellard | ldebug ("enabling voice\n");
|
617 | dd8a5649 | malc | if (poll_mode && oss_poll_out (hw)) {
|
618 | dd8a5649 | malc | poll_mode = 0;
|
619 | dd8a5649 | malc | } |
620 | dd8a5649 | malc | hw->poll_mode = poll_mode; |
621 | dd8a5649 | malc | |
622 | dd8a5649 | malc | if (!oss->mmapped) {
|
623 | dd8a5649 | malc | return 0; |
624 | dd8a5649 | malc | } |
625 | dd8a5649 | malc | |
626 | 1d14ffa9 | bellard | audio_pcm_info_clear_buf (&hw->info, oss->pcm_buf, hw->samples); |
627 | 85571bc7 | bellard | trig = PCM_ENABLE_OUTPUT; |
628 | 85571bc7 | bellard | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
629 | 1d14ffa9 | bellard | oss_logerr ( |
630 | 1d14ffa9 | bellard | errno, |
631 | 1d14ffa9 | bellard | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
632 | 1d14ffa9 | bellard | ); |
633 | 85571bc7 | bellard | return -1; |
634 | 85571bc7 | bellard | } |
635 | 85571bc7 | bellard | break;
|
636 | 85571bc7 | bellard | |
637 | 85571bc7 | bellard | case VOICE_DISABLE:
|
638 | dd8a5649 | malc | if (hw->poll_mode) {
|
639 | dd8a5649 | malc | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
640 | dd8a5649 | malc | hw->poll_mode = 0;
|
641 | dd8a5649 | malc | } |
642 | dd8a5649 | malc | |
643 | dd8a5649 | malc | if (!oss->mmapped) {
|
644 | dd8a5649 | malc | return 0; |
645 | dd8a5649 | malc | } |
646 | dd8a5649 | malc | |
647 | 85571bc7 | bellard | ldebug ("disabling voice\n");
|
648 | 85571bc7 | bellard | trig = 0;
|
649 | 85571bc7 | bellard | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
650 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
|
651 | 85571bc7 | bellard | return -1; |
652 | 85571bc7 | bellard | } |
653 | 85571bc7 | bellard | break;
|
654 | 85571bc7 | bellard | } |
655 | 85571bc7 | bellard | return 0; |
656 | 85571bc7 | bellard | } |
657 | 85571bc7 | bellard | |
658 | 1ea879e5 | malc | static int oss_init_in (HWVoiceIn *hw, struct audsettings *as) |
659 | 1d14ffa9 | bellard | { |
660 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
661 | 1d14ffa9 | bellard | struct oss_params req, obt;
|
662 | 1d14ffa9 | bellard | int endianness;
|
663 | 1d14ffa9 | bellard | int err;
|
664 | 1d14ffa9 | bellard | int fd;
|
665 | 1d14ffa9 | bellard | audfmt_e effective_fmt; |
666 | 1ea879e5 | malc | struct audsettings obt_as;
|
667 | 1d14ffa9 | bellard | |
668 | 571ec3d6 | bellard | oss->fd = -1;
|
669 | 571ec3d6 | bellard | |
670 | c0fe3827 | bellard | req.fmt = aud_to_ossfmt (as->fmt); |
671 | c0fe3827 | bellard | req.freq = as->freq; |
672 | c0fe3827 | bellard | req.nchannels = as->nchannels; |
673 | 1d14ffa9 | bellard | req.fragsize = conf.fragsize; |
674 | 1d14ffa9 | bellard | req.nfrags = conf.nfrags; |
675 | 1d14ffa9 | bellard | if (oss_open (1, &req, &obt, &fd)) { |
676 | 1d14ffa9 | bellard | return -1; |
677 | 1d14ffa9 | bellard | } |
678 | 1d14ffa9 | bellard | |
679 | 1d14ffa9 | bellard | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
680 | 1d14ffa9 | bellard | if (err) {
|
681 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
682 | 1d14ffa9 | bellard | return -1; |
683 | 1d14ffa9 | bellard | } |
684 | 1d14ffa9 | bellard | |
685 | c0fe3827 | bellard | obt_as.freq = obt.freq; |
686 | c0fe3827 | bellard | obt_as.nchannels = obt.nchannels; |
687 | c0fe3827 | bellard | obt_as.fmt = effective_fmt; |
688 | d929eba5 | bellard | obt_as.endianness = endianness; |
689 | c0fe3827 | bellard | |
690 | d929eba5 | bellard | audio_pcm_init_info (&hw->info, &obt_as); |
691 | 1d14ffa9 | bellard | oss->nfrags = obt.nfrags; |
692 | 1d14ffa9 | bellard | oss->fragsize = obt.fragsize; |
693 | c0fe3827 | bellard | |
694 | c0fe3827 | bellard | if (obt.nfrags * obt.fragsize & hw->info.align) {
|
695 | c0fe3827 | bellard | dolog ("warning: Misaligned ADC buffer, size %d, alignment %d\n",
|
696 | c0fe3827 | bellard | obt.nfrags * obt.fragsize, hw->info.align + 1);
|
697 | c0fe3827 | bellard | } |
698 | c0fe3827 | bellard | |
699 | c0fe3827 | bellard | hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift; |
700 | c0fe3827 | bellard | oss->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
701 | 1d14ffa9 | bellard | if (!oss->pcm_buf) {
|
702 | b41cffbe | bellard | dolog ("Could not allocate ADC buffer (%d samples, each %d bytes)\n",
|
703 | b41cffbe | bellard | hw->samples, 1 << hw->info.shift);
|
704 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
705 | 1d14ffa9 | bellard | return -1; |
706 | 1d14ffa9 | bellard | } |
707 | 1d14ffa9 | bellard | |
708 | 1d14ffa9 | bellard | oss->fd = fd; |
709 | 1d14ffa9 | bellard | return 0; |
710 | 1d14ffa9 | bellard | } |
711 | 1d14ffa9 | bellard | |
712 | 1d14ffa9 | bellard | static void oss_fini_in (HWVoiceIn *hw) |
713 | 1d14ffa9 | bellard | { |
714 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
715 | 1d14ffa9 | bellard | |
716 | 1d14ffa9 | bellard | oss_anal_close (&oss->fd); |
717 | 1d14ffa9 | bellard | |
718 | 1d14ffa9 | bellard | if (oss->pcm_buf) {
|
719 | 1d14ffa9 | bellard | qemu_free (oss->pcm_buf); |
720 | 1d14ffa9 | bellard | oss->pcm_buf = NULL;
|
721 | 1d14ffa9 | bellard | } |
722 | 1d14ffa9 | bellard | } |
723 | 1d14ffa9 | bellard | |
724 | 1d14ffa9 | bellard | static int oss_run_in (HWVoiceIn *hw) |
725 | 1d14ffa9 | bellard | { |
726 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
727 | 1d14ffa9 | bellard | int hwshift = hw->info.shift;
|
728 | 1d14ffa9 | bellard | int i;
|
729 | 1d14ffa9 | bellard | int live = audio_pcm_hw_get_live_in (hw);
|
730 | 1d14ffa9 | bellard | int dead = hw->samples - live;
|
731 | 1d14ffa9 | bellard | size_t read_samples = 0;
|
732 | 1d14ffa9 | bellard | struct {
|
733 | 1d14ffa9 | bellard | int add;
|
734 | 1d14ffa9 | bellard | int len;
|
735 | 1d14ffa9 | bellard | } bufs[2] = {
|
736 | 98f9f48c | malc | { .add = hw->wpos, .len = 0 },
|
737 | 98f9f48c | malc | { .add = 0, .len = 0 } |
738 | 1d14ffa9 | bellard | }; |
739 | 1d14ffa9 | bellard | |
740 | 1d14ffa9 | bellard | if (!dead) {
|
741 | 1d14ffa9 | bellard | return 0; |
742 | 1d14ffa9 | bellard | } |
743 | 1d14ffa9 | bellard | |
744 | 1d14ffa9 | bellard | if (hw->wpos + dead > hw->samples) {
|
745 | 1d14ffa9 | bellard | bufs[0].len = (hw->samples - hw->wpos) << hwshift;
|
746 | 1d14ffa9 | bellard | bufs[1].len = (dead - (hw->samples - hw->wpos)) << hwshift;
|
747 | 1d14ffa9 | bellard | } |
748 | 1d14ffa9 | bellard | else {
|
749 | 1d14ffa9 | bellard | bufs[0].len = dead << hwshift;
|
750 | 1d14ffa9 | bellard | } |
751 | 1d14ffa9 | bellard | |
752 | 1d14ffa9 | bellard | |
753 | 1d14ffa9 | bellard | for (i = 0; i < 2; ++i) { |
754 | 1d14ffa9 | bellard | ssize_t nread; |
755 | 1d14ffa9 | bellard | |
756 | 1d14ffa9 | bellard | if (bufs[i].len) {
|
757 | 1d14ffa9 | bellard | void *p = advance (oss->pcm_buf, bufs[i].add << hwshift);
|
758 | 1d14ffa9 | bellard | nread = read (oss->fd, p, bufs[i].len); |
759 | 1d14ffa9 | bellard | |
760 | 1d14ffa9 | bellard | if (nread > 0) { |
761 | 1d14ffa9 | bellard | if (nread & hw->info.align) {
|
762 | b41cffbe | bellard | dolog ("warning: Misaligned read %zd (requested %d), "
|
763 | 1d14ffa9 | bellard | "alignment %d\n", nread, bufs[i].add << hwshift,
|
764 | 1d14ffa9 | bellard | hw->info.align + 1);
|
765 | 1d14ffa9 | bellard | } |
766 | 1d14ffa9 | bellard | read_samples += nread >> hwshift; |
767 | 1d14ffa9 | bellard | hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift, |
768 | 1d14ffa9 | bellard | &nominal_volume); |
769 | 1d14ffa9 | bellard | } |
770 | 1d14ffa9 | bellard | |
771 | 1d14ffa9 | bellard | if (bufs[i].len - nread) {
|
772 | 1d14ffa9 | bellard | if (nread == -1) { |
773 | 1d14ffa9 | bellard | switch (errno) {
|
774 | 1d14ffa9 | bellard | case EINTR:
|
775 | 1d14ffa9 | bellard | case EAGAIN:
|
776 | 1d14ffa9 | bellard | break;
|
777 | 1d14ffa9 | bellard | default:
|
778 | 1d14ffa9 | bellard | oss_logerr ( |
779 | 1d14ffa9 | bellard | errno, |
780 | 1d14ffa9 | bellard | "Failed to read %d bytes of audio (to %p)\n",
|
781 | 1d14ffa9 | bellard | bufs[i].len, p |
782 | 1d14ffa9 | bellard | ); |
783 | 1d14ffa9 | bellard | break;
|
784 | 1d14ffa9 | bellard | } |
785 | 1d14ffa9 | bellard | } |
786 | 1d14ffa9 | bellard | break;
|
787 | 1d14ffa9 | bellard | } |
788 | 1d14ffa9 | bellard | } |
789 | 1d14ffa9 | bellard | } |
790 | 1d14ffa9 | bellard | |
791 | 1d14ffa9 | bellard | hw->wpos = (hw->wpos + read_samples) % hw->samples; |
792 | 1d14ffa9 | bellard | return read_samples;
|
793 | 1d14ffa9 | bellard | } |
794 | 1d14ffa9 | bellard | |
795 | 1d14ffa9 | bellard | static int oss_read (SWVoiceIn *sw, void *buf, int size) |
796 | 1d14ffa9 | bellard | { |
797 | 1d14ffa9 | bellard | return audio_pcm_sw_read (sw, buf, size);
|
798 | 1d14ffa9 | bellard | } |
799 | 1d14ffa9 | bellard | |
800 | 1d14ffa9 | bellard | static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...) |
801 | 1d14ffa9 | bellard | { |
802 | dd8a5649 | malc | va_list ap; |
803 | dd8a5649 | malc | int poll_mode;
|
804 | dd8a5649 | malc | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
805 | dd8a5649 | malc | |
806 | dd8a5649 | malc | va_start (ap, cmd); |
807 | dd8a5649 | malc | poll_mode = va_arg (ap, int);
|
808 | dd8a5649 | malc | va_end (ap); |
809 | dd8a5649 | malc | |
810 | dd8a5649 | malc | switch (cmd) {
|
811 | dd8a5649 | malc | case VOICE_ENABLE:
|
812 | dd8a5649 | malc | if (poll_mode && oss_poll_in (hw)) {
|
813 | dd8a5649 | malc | poll_mode = 0;
|
814 | dd8a5649 | malc | } |
815 | dd8a5649 | malc | hw->poll_mode = poll_mode; |
816 | dd8a5649 | malc | break;
|
817 | dd8a5649 | malc | |
818 | dd8a5649 | malc | case VOICE_DISABLE:
|
819 | dd8a5649 | malc | if (hw->poll_mode) {
|
820 | dd8a5649 | malc | hw->poll_mode = 0;
|
821 | dd8a5649 | malc | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
822 | dd8a5649 | malc | } |
823 | dd8a5649 | malc | break;
|
824 | dd8a5649 | malc | } |
825 | 1d14ffa9 | bellard | return 0; |
826 | 1d14ffa9 | bellard | } |
827 | 1d14ffa9 | bellard | |
828 | 85571bc7 | bellard | static void *oss_audio_init (void) |
829 | 85571bc7 | bellard | { |
830 | 85571bc7 | bellard | return &conf;
|
831 | 85571bc7 | bellard | } |
832 | 85571bc7 | bellard | |
833 | 85571bc7 | bellard | static void oss_audio_fini (void *opaque) |
834 | 85571bc7 | bellard | { |
835 | 1d14ffa9 | bellard | (void) opaque;
|
836 | 85571bc7 | bellard | } |
837 | 85571bc7 | bellard | |
838 | 1d14ffa9 | bellard | static struct audio_option oss_options[] = { |
839 | 98f9f48c | malc | { |
840 | 98f9f48c | malc | .name = "FRAGSIZE",
|
841 | 98f9f48c | malc | .tag = AUD_OPT_INT, |
842 | 98f9f48c | malc | .valp = &conf.fragsize, |
843 | 98f9f48c | malc | .descr = "Fragment size in bytes"
|
844 | 98f9f48c | malc | }, |
845 | 98f9f48c | malc | { |
846 | 98f9f48c | malc | .name = "NFRAGS",
|
847 | 98f9f48c | malc | .tag = AUD_OPT_INT, |
848 | 98f9f48c | malc | .valp = &conf.nfrags, |
849 | 98f9f48c | malc | .descr = "Number of fragments"
|
850 | 98f9f48c | malc | }, |
851 | 98f9f48c | malc | { |
852 | 98f9f48c | malc | .name = "MMAP",
|
853 | 98f9f48c | malc | .tag = AUD_OPT_BOOL, |
854 | 98f9f48c | malc | .valp = &conf.try_mmap, |
855 | 98f9f48c | malc | .descr = "Try using memory mapped access"
|
856 | 98f9f48c | malc | }, |
857 | 98f9f48c | malc | { |
858 | 98f9f48c | malc | .name = "DAC_DEV",
|
859 | 98f9f48c | malc | .tag = AUD_OPT_STR, |
860 | 98f9f48c | malc | .valp = &conf.devpath_out, |
861 | 98f9f48c | malc | .descr = "Path to DAC device"
|
862 | 98f9f48c | malc | }, |
863 | 98f9f48c | malc | { |
864 | 98f9f48c | malc | .name = "ADC_DEV",
|
865 | 98f9f48c | malc | .tag = AUD_OPT_STR, |
866 | 98f9f48c | malc | .valp = &conf.devpath_in, |
867 | 98f9f48c | malc | .descr = "Path to ADC device"
|
868 | 98f9f48c | malc | }, |
869 | 98f9f48c | malc | { |
870 | 0b3652bc | malc | .name = "EXCLUSIVE",
|
871 | 0b3652bc | malc | .tag = AUD_OPT_BOOL, |
872 | 0b3652bc | malc | .valp = &conf.exclusive, |
873 | 0b3652bc | malc | .descr = "Open device in exclusive mode (vmix wont work)"
|
874 | 0b3652bc | malc | }, |
875 | 0b3652bc | malc | #ifdef SNDCTL_DSP_POLICY
|
876 | 0b3652bc | malc | { |
877 | 0b3652bc | malc | .name = "POLICY",
|
878 | 0b3652bc | malc | .tag = AUD_OPT_INT, |
879 | 0b3652bc | malc | .valp = &conf.policy, |
880 | 0b3652bc | malc | .descr = "Set the timing policy of the device, -1 to use fragment mode",
|
881 | 0b3652bc | malc | }, |
882 | 0b3652bc | malc | #endif
|
883 | 0b3652bc | malc | { |
884 | 98f9f48c | malc | .name = "DEBUG",
|
885 | 98f9f48c | malc | .tag = AUD_OPT_BOOL, |
886 | 98f9f48c | malc | .valp = &conf.debug, |
887 | 98f9f48c | malc | .descr = "Turn on some debugging messages"
|
888 | 98f9f48c | malc | }, |
889 | 2700efa3 | Juan Quintela | { /* End of list */ }
|
890 | 1d14ffa9 | bellard | }; |
891 | 1d14ffa9 | bellard | |
892 | 35f4b58c | blueswir1 | static struct audio_pcm_ops oss_pcm_ops = { |
893 | 1dd3e4d1 | Juan Quintela | .init_out = oss_init_out, |
894 | 1dd3e4d1 | Juan Quintela | .fini_out = oss_fini_out, |
895 | 1dd3e4d1 | Juan Quintela | .run_out = oss_run_out, |
896 | 1dd3e4d1 | Juan Quintela | .write = oss_write, |
897 | 1dd3e4d1 | Juan Quintela | .ctl_out = oss_ctl_out, |
898 | 1dd3e4d1 | Juan Quintela | |
899 | 1dd3e4d1 | Juan Quintela | .init_in = oss_init_in, |
900 | 1dd3e4d1 | Juan Quintela | .fini_in = oss_fini_in, |
901 | 1dd3e4d1 | Juan Quintela | .run_in = oss_run_in, |
902 | 1dd3e4d1 | Juan Quintela | .read = oss_read, |
903 | 1dd3e4d1 | Juan Quintela | .ctl_in = oss_ctl_in |
904 | 85571bc7 | bellard | }; |
905 | 85571bc7 | bellard | |
906 | 1d14ffa9 | bellard | struct audio_driver oss_audio_driver = {
|
907 | bee37f32 | Juan Quintela | .name = "oss",
|
908 | bee37f32 | Juan Quintela | .descr = "OSS http://www.opensound.com",
|
909 | bee37f32 | Juan Quintela | .options = oss_options, |
910 | bee37f32 | Juan Quintela | .init = oss_audio_init, |
911 | bee37f32 | Juan Quintela | .fini = oss_audio_fini, |
912 | bee37f32 | Juan Quintela | .pcm_ops = &oss_pcm_ops, |
913 | bee37f32 | Juan Quintela | .can_be_default = 1,
|
914 | bee37f32 | Juan Quintela | .max_voices_out = INT_MAX, |
915 | bee37f32 | Juan Quintela | .max_voices_in = INT_MAX, |
916 | bee37f32 | Juan Quintela | .voice_size_out = sizeof (OSSVoiceOut),
|
917 | bee37f32 | Juan Quintela | .voice_size_in = sizeof (OSSVoiceIn)
|
918 | 85571bc7 | bellard | }; |