root / audio / ossaudio.c @ 64e58fe5
History | View | Annotate | Download (22.7 kB)
1 | 85571bc7 | bellard | /*
|
---|---|---|---|
2 | 1d14ffa9 | bellard | * QEMU OSS audio driver
|
3 | 1d14ffa9 | bellard | *
|
4 | 1d14ffa9 | bellard | * Copyright (c) 2003-2005 Vassili Karpov (malc)
|
5 | 1d14ffa9 | bellard | *
|
6 | 85571bc7 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 | 85571bc7 | bellard | * of this software and associated documentation files (the "Software"), to deal
|
8 | 85571bc7 | bellard | * in the Software without restriction, including without limitation the rights
|
9 | 85571bc7 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 | 85571bc7 | bellard | * copies of the Software, and to permit persons to whom the Software is
|
11 | 85571bc7 | bellard | * furnished to do so, subject to the following conditions:
|
12 | 85571bc7 | bellard | *
|
13 | 85571bc7 | bellard | * The above copyright notice and this permission notice shall be included in
|
14 | 85571bc7 | bellard | * all copies or substantial portions of the Software.
|
15 | 85571bc7 | bellard | *
|
16 | 85571bc7 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 | 85571bc7 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 | 85571bc7 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 | 85571bc7 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 | 85571bc7 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 | 85571bc7 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 | 85571bc7 | bellard | * THE SOFTWARE.
|
23 | 85571bc7 | bellard | */
|
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__
|
29 | f0c757e4 | ths | #include <soundcard.h> |
30 | f0c757e4 | ths | #else
|
31 | 85571bc7 | bellard | #include <sys/soundcard.h> |
32 | f0c757e4 | ths | #endif
|
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;
|
44 | fb065187 | bellard | int fd;
|
45 | 9d168976 | malc | int wpos;
|
46 | fb065187 | bellard | int nfrags;
|
47 | fb065187 | bellard | int fragsize;
|
48 | fb065187 | bellard | int mmapped;
|
49 | 9d168976 | malc | int pending;
|
50 | 1d14ffa9 | bellard | } OSSVoiceOut; |
51 | 85571bc7 | bellard | |
52 | 1d14ffa9 | bellard | typedef struct OSSVoiceIn { |
53 | 1d14ffa9 | bellard | HWVoiceIn hw; |
54 | 1d14ffa9 | bellard | void *pcm_buf;
|
55 | 1d14ffa9 | bellard | int fd;
|
56 | 1d14ffa9 | bellard | int nfrags;
|
57 | 1d14ffa9 | bellard | int fragsize;
|
58 | 1d14ffa9 | bellard | } OSSVoiceIn; |
59 | 85571bc7 | bellard | |
60 | 85571bc7 | bellard | static struct { |
61 | 85571bc7 | bellard | int try_mmap;
|
62 | 85571bc7 | bellard | int nfrags;
|
63 | 85571bc7 | bellard | int fragsize;
|
64 | 1d14ffa9 | bellard | const char *devpath_out; |
65 | 1d14ffa9 | bellard | const char *devpath_in; |
66 | 8ead62cf | bellard | int debug;
|
67 | 0b3652bc | malc | int exclusive;
|
68 | 0b3652bc | malc | int policy;
|
69 | 85571bc7 | bellard | } conf = { |
70 | 85571bc7 | bellard | .try_mmap = 0,
|
71 | 85571bc7 | bellard | .nfrags = 4,
|
72 | 85571bc7 | bellard | .fragsize = 4096,
|
73 | 1d14ffa9 | bellard | .devpath_out = "/dev/dsp",
|
74 | 8ead62cf | bellard | .devpath_in = "/dev/dsp",
|
75 | 0b3652bc | malc | .debug = 0,
|
76 | 0b3652bc | malc | .exclusive = 0,
|
77 | 0b3652bc | malc | .policy = 5
|
78 | 85571bc7 | bellard | }; |
79 | 85571bc7 | bellard | |
80 | 85571bc7 | bellard | struct oss_params {
|
81 | 85571bc7 | bellard | int freq;
|
82 | 85571bc7 | bellard | audfmt_e fmt; |
83 | 85571bc7 | bellard | int nchannels;
|
84 | 85571bc7 | bellard | int nfrags;
|
85 | 85571bc7 | bellard | int fragsize;
|
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));
|
97 | 85571bc7 | bellard | } |
98 | 85571bc7 | bellard | |
99 | 1d14ffa9 | bellard | static void GCC_FMT_ATTR (3, 4) oss_logerr2 ( |
100 | 1d14ffa9 | bellard | int err,
|
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);
|
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));
|
115 | 1d14ffa9 | bellard | } |
116 | 1d14ffa9 | bellard | |
117 | 1d14ffa9 | bellard | static void oss_anal_close (int *fdp) |
118 | 1d14ffa9 | bellard | { |
119 | 6ebfda13 | malc | int err;
|
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) {
|
124 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp);
|
125 | 1d14ffa9 | bellard | } |
126 | 1d14ffa9 | bellard | *fdp = -1;
|
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;
|
132 | dd8a5649 | malc | audio_run ("oss_poll_out");
|
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;
|
138 | dd8a5649 | malc | audio_run ("oss_poll_in");
|
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);
|
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) {
|
163 | 1d14ffa9 | bellard | case AUD_FMT_S8:
|
164 | 1d14ffa9 | bellard | return AFMT_S8;
|
165 | 1d14ffa9 | bellard | |
166 | 1d14ffa9 | bellard | case AUD_FMT_U8:
|
167 | 1d14ffa9 | bellard | return AFMT_U8;
|
168 | 1d14ffa9 | bellard | |
169 | 1d14ffa9 | bellard | case AUD_FMT_S16:
|
170 | 1d14ffa9 | bellard | return AFMT_S16_LE;
|
171 | 1d14ffa9 | bellard | |
172 | 1d14ffa9 | bellard | case AUD_FMT_U16:
|
173 | 1d14ffa9 | bellard | return AFMT_U16_LE;
|
174 | 1d14ffa9 | bellard | |
175 | 85571bc7 | bellard | default:
|
176 | 1d14ffa9 | bellard | dolog ("Internal logic error: Bad audio format %d\n", fmt);
|
177 | 1d14ffa9 | bellard | #ifdef DEBUG_AUDIO
|
178 | 1d14ffa9 | bellard | abort (); |
179 | 1d14ffa9 | bellard | #endif
|
180 | 1d14ffa9 | bellard | return AFMT_U8;
|
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) {
|
187 | 1d14ffa9 | bellard | case AFMT_S8:
|
188 | ca9cc28c | balrog | *endianness = 0;
|
189 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S8; |
190 | 1d14ffa9 | bellard | break;
|
191 | 1d14ffa9 | bellard | |
192 | 1d14ffa9 | bellard | case AFMT_U8:
|
193 | 1d14ffa9 | bellard | *endianness = 0;
|
194 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U8; |
195 | 1d14ffa9 | bellard | break;
|
196 | 1d14ffa9 | bellard | |
197 | 1d14ffa9 | bellard | case AFMT_S16_LE:
|
198 | 1d14ffa9 | bellard | *endianness = 0;
|
199 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S16; |
200 | 1d14ffa9 | bellard | break;
|
201 | 1d14ffa9 | bellard | |
202 | 1d14ffa9 | bellard | case AFMT_U16_LE:
|
203 | 1d14ffa9 | bellard | *endianness = 0;
|
204 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U16; |
205 | 1d14ffa9 | bellard | break;
|
206 | 1d14ffa9 | bellard | |
207 | 1d14ffa9 | bellard | case AFMT_S16_BE:
|
208 | 1d14ffa9 | bellard | *endianness = 1;
|
209 | 1d14ffa9 | bellard | *fmt = AUD_FMT_S16; |
210 | 1d14ffa9 | bellard | break;
|
211 | 1d14ffa9 | bellard | |
212 | 1d14ffa9 | bellard | case AFMT_U16_BE:
|
213 | 1d14ffa9 | bellard | *endianness = 1;
|
214 | 1d14ffa9 | bellard | *fmt = AUD_FMT_U16; |
215 | 1d14ffa9 | bellard | break;
|
216 | 1d14ffa9 | bellard | |
217 | 85571bc7 | bellard | default:
|
218 | 1d14ffa9 | bellard | dolog ("Unrecognized audio format %d\n", ossfmt);
|
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
|
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");
|
229 | 85571bc7 | bellard | dolog ("format | %10d | %10d\n", req->fmt, obt->fmt);
|
230 | 1d14ffa9 | bellard | dolog ("channels | %10d | %10d\n",
|
231 | 1d14ffa9 | bellard | req->nchannels, obt->nchannels); |
232 | 85571bc7 | bellard | dolog ("frequency | %10d | %10d\n", req->freq, obt->freq);
|
233 | 85571bc7 | bellard | dolog ("nfrags | %10d | %10d\n", req->nfrags, obt->nfrags);
|
234 | 1d14ffa9 | bellard | dolog ("fragsize | %10d | %10d\n",
|
235 | 1d14ffa9 | bellard | req->fragsize, obt->fragsize); |
236 | 85571bc7 | bellard | } |
237 | 85571bc7 | bellard | #endif
|
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;
|
243 | 0b3652bc | malc | int version;
|
244 | 0b3652bc | malc | int oflags = conf.exclusive ? O_EXCL : 0; |
245 | 85571bc7 | bellard | audio_buf_info abinfo; |
246 | 85571bc7 | bellard | int fmt, freq, nchannels;
|
247 | 1d14ffa9 | bellard | const char *dspname = in ? conf.devpath_in : conf.devpath_out; |
248 | 1d14ffa9 | bellard | const char *typ = in ? "ADC" : "DAC"; |
249 | 85571bc7 | bellard | |
250 | 2182349d | malc | /* Kludge needed to have working mmap on Linux */
|
251 | 0b3652bc | malc | oflags |= conf.try_mmap ? O_RDWR : (in ? O_RDONLY : O_WRONLY); |
252 | 0b3652bc | malc | |
253 | 2182349d | malc | fd = open (dspname, oflags | O_NONBLOCK); |
254 | 85571bc7 | bellard | if (-1 == fd) { |
255 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname);
|
256 | 85571bc7 | bellard | return -1; |
257 | 85571bc7 | bellard | } |
258 | 85571bc7 | bellard | |
259 | 85571bc7 | bellard | freq = req->freq; |
260 | 85571bc7 | bellard | nchannels = req->nchannels; |
261 | 85571bc7 | bellard | fmt = req->fmt; |
262 | 85571bc7 | bellard | |
263 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_SAMPLESIZE, &fmt)) {
|
264 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set sample size %d\n", req->fmt);
|
265 | 85571bc7 | bellard | goto err;
|
266 | 85571bc7 | bellard | } |
267 | 85571bc7 | bellard | |
268 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_CHANNELS, &nchannels)) {
|
269 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set number of channels %d\n",
|
270 | 1d14ffa9 | bellard | req->nchannels); |
271 | 85571bc7 | bellard | goto err;
|
272 | 85571bc7 | bellard | } |
273 | 85571bc7 | bellard | |
274 | 85571bc7 | bellard | if (ioctl (fd, SNDCTL_DSP_SPEED, &freq)) {
|
275 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set frequency %d\n", req->freq);
|
276 | 85571bc7 | bellard | goto err;
|
277 | 85571bc7 | bellard | } |
278 | 85571bc7 | bellard | |
279 | 902e2b51 | malc | if (ioctl (fd, SNDCTL_DSP_NONBLOCK, NULL)) { |
280 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n");
|
281 | 85571bc7 | bellard | goto err;
|
282 | 85571bc7 | bellard | } |
283 | 85571bc7 | bellard | |
284 | 0b3652bc | malc | if (ioctl (fd, OSS_GETVERSION, &version)) {
|
285 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to get OSS version\n");
|
286 | 0b3652bc | malc | version = 0;
|
287 | 0b3652bc | malc | } |
288 | 0b3652bc | malc | |
289 | 0b3652bc | malc | if (conf.debug) {
|
290 | 0b3652bc | malc | dolog ("OSS version = %#x\n", version);
|
291 | 0b3652bc | malc | } |
292 | 0b3652bc | malc | |
293 | 0b3652bc | malc | #ifdef SNDCTL_DSP_POLICY
|
294 | 0b3652bc | malc | if (conf.policy >= 0 && version >= 0x040000) { |
295 | 0b3652bc | malc | int policy = conf.policy;
|
296 | 0b3652bc | malc | if (ioctl (fd, SNDCTL_DSP_POLICY, &policy)) {
|
297 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to set timing policy to %d\n",
|
298 | 0b3652bc | malc | conf.policy); |
299 | 0b3652bc | malc | goto err;
|
300 | 0b3652bc | malc | } |
301 | 0b3652bc | malc | } |
302 | 0b3652bc | malc | else
|
303 | 0b3652bc | malc | #endif
|
304 | 0b3652bc | malc | { |
305 | 0b3652bc | malc | int mmmmssss = (req->nfrags << 16) | ctz32 (req->fragsize); |
306 | 0b3652bc | malc | if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
|
307 | 0b3652bc | malc | oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n",
|
308 | 0b3652bc | malc | req->nfrags, req->fragsize); |
309 | 0b3652bc | malc | goto err;
|
310 | 0b3652bc | malc | } |
311 | 85571bc7 | bellard | } |
312 | 85571bc7 | bellard | |
313 | 1d14ffa9 | bellard | if (ioctl (fd, in ? SNDCTL_DSP_GETISPACE : SNDCTL_DSP_GETOSPACE, &abinfo)) {
|
314 | 1d14ffa9 | bellard | oss_logerr2 (errno, typ, "Failed to get buffer length\n");
|
315 | 85571bc7 | bellard | goto err;
|
316 | 85571bc7 | bellard | } |
317 | 85571bc7 | bellard | |
318 | 29ddf27b | malc | if (!abinfo.fragstotal || !abinfo.fragsize) {
|
319 | 29ddf27b | malc | AUD_log (AUDIO_CAP, "Returned bogus buffer information(%d, %d) for %s\n",
|
320 | 29ddf27b | malc | abinfo.fragstotal, abinfo.fragsize, typ); |
321 | 29ddf27b | malc | goto err;
|
322 | 29ddf27b | malc | } |
323 | 29ddf27b | malc | |
324 | 85571bc7 | bellard | obt->fmt = fmt; |
325 | 85571bc7 | bellard | obt->nchannels = nchannels; |
326 | 85571bc7 | bellard | obt->freq = freq; |
327 | 85571bc7 | bellard | obt->nfrags = abinfo.fragstotal; |
328 | 85571bc7 | bellard | obt->fragsize = abinfo.fragsize; |
329 | 85571bc7 | bellard | *pfd = fd; |
330 | 85571bc7 | bellard | |
331 | c0fe3827 | bellard | #ifdef DEBUG_MISMATCHES
|
332 | 85571bc7 | bellard | if ((req->fmt != obt->fmt) ||
|
333 | 85571bc7 | bellard | (req->nchannels != obt->nchannels) || |
334 | 85571bc7 | bellard | (req->freq != obt->freq) || |
335 | 85571bc7 | bellard | (req->fragsize != obt->fragsize) || |
336 | 85571bc7 | bellard | (req->nfrags != obt->nfrags)) { |
337 | 85571bc7 | bellard | dolog ("Audio parameters mismatch\n");
|
338 | 1d14ffa9 | bellard | oss_dump_info (req, obt); |
339 | 85571bc7 | bellard | } |
340 | c0fe3827 | bellard | #endif
|
341 | 85571bc7 | bellard | |
342 | 1d14ffa9 | bellard | #ifdef DEBUG
|
343 | 1d14ffa9 | bellard | oss_dump_info (req, obt); |
344 | 85571bc7 | bellard | #endif
|
345 | 85571bc7 | bellard | return 0; |
346 | 85571bc7 | bellard | |
347 | 1d14ffa9 | bellard | err:
|
348 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
349 | 85571bc7 | bellard | return -1; |
350 | 85571bc7 | bellard | } |
351 | 85571bc7 | bellard | |
352 | 9d168976 | malc | static void oss_write_pending (OSSVoiceOut *oss) |
353 | 9d168976 | malc | { |
354 | 9d168976 | malc | HWVoiceOut *hw = &oss->hw; |
355 | 9d168976 | malc | |
356 | 9d168976 | malc | if (oss->mmapped) {
|
357 | 9d168976 | malc | return;
|
358 | 9d168976 | malc | } |
359 | 9d168976 | malc | |
360 | 9d168976 | malc | while (oss->pending) {
|
361 | 9d168976 | malc | int samples_written;
|
362 | 9d168976 | malc | ssize_t bytes_written; |
363 | 9d168976 | malc | int samples_till_end = hw->samples - oss->wpos;
|
364 | 9d168976 | malc | int samples_to_write = audio_MIN (oss->pending, samples_till_end);
|
365 | 9d168976 | malc | int bytes_to_write = samples_to_write << hw->info.shift;
|
366 | 9d168976 | malc | void *pcm = advance (oss->pcm_buf, oss->wpos << hw->info.shift);
|
367 | 9d168976 | malc | |
368 | 9d168976 | malc | bytes_written = write (oss->fd, pcm, bytes_to_write); |
369 | 9d168976 | malc | if (bytes_written < 0) { |
370 | 9d168976 | malc | if (errno != EAGAIN) {
|
371 | 9d168976 | malc | oss_logerr (errno, "failed to write %d bytes\n",
|
372 | 9d168976 | malc | bytes_to_write); |
373 | 9d168976 | malc | } |
374 | 9d168976 | malc | break;
|
375 | 9d168976 | malc | } |
376 | 9d168976 | malc | |
377 | 9d168976 | malc | if (bytes_written & hw->info.align) {
|
378 | 9d168976 | malc | dolog ("misaligned write asked for %d, but got %zd\n",
|
379 | 9d168976 | malc | bytes_to_write, bytes_written); |
380 | 9d168976 | malc | return;
|
381 | 9d168976 | malc | } |
382 | 9d168976 | malc | |
383 | 9d168976 | malc | samples_written = bytes_written >> hw->info.shift; |
384 | 9d168976 | malc | oss->pending -= samples_written; |
385 | 9d168976 | malc | oss->wpos = (oss->wpos + samples_written) % hw->samples; |
386 | 9d168976 | malc | if (bytes_written - bytes_to_write) {
|
387 | 9d168976 | malc | break;
|
388 | 9d168976 | malc | } |
389 | 9d168976 | malc | } |
390 | 9d168976 | malc | } |
391 | 9d168976 | malc | |
392 | bdff253c | malc | static int oss_run_out (HWVoiceOut *hw, int live) |
393 | 85571bc7 | bellard | { |
394 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
395 | bdff253c | malc | int err, decr;
|
396 | 85571bc7 | bellard | struct audio_buf_info abinfo;
|
397 | 85571bc7 | bellard | struct count_info cntinfo;
|
398 | c0fe3827 | bellard | int bufsize;
|
399 | 85571bc7 | bellard | |
400 | c0fe3827 | bellard | bufsize = hw->samples << hw->info.shift; |
401 | c0fe3827 | bellard | |
402 | 85571bc7 | bellard | if (oss->mmapped) {
|
403 | 54762b73 | malc | int bytes, pos;
|
404 | 85571bc7 | bellard | |
405 | 85571bc7 | bellard | err = ioctl (oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo); |
406 | 85571bc7 | bellard | if (err < 0) { |
407 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
408 | 1d14ffa9 | bellard | return 0; |
409 | 85571bc7 | bellard | } |
410 | 85571bc7 | bellard | |
411 | 54762b73 | malc | pos = hw->rpos << hw->info.shift; |
412 | 54762b73 | malc | bytes = audio_ring_dist (cntinfo.ptr, pos, bufsize); |
413 | 1d14ffa9 | bellard | decr = audio_MIN (bytes >> hw->info.shift, live); |
414 | 85571bc7 | bellard | } |
415 | 85571bc7 | bellard | else {
|
416 | 85571bc7 | bellard | err = ioctl (oss->fd, SNDCTL_DSP_GETOSPACE, &abinfo); |
417 | 85571bc7 | bellard | if (err < 0) { |
418 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
419 | 1d14ffa9 | bellard | return 0; |
420 | 1d14ffa9 | bellard | } |
421 | 1d14ffa9 | bellard | |
422 | 8ead62cf | bellard | if (abinfo.bytes > bufsize) {
|
423 | 8ead62cf | bellard | if (conf.debug) {
|
424 | 8ead62cf | bellard | dolog ("warning: Invalid available size, size=%d bufsize=%d\n"
|
425 | 155a8ad3 | malc | "please report your OS/audio hw to av1474@comtv.ru\n",
|
426 | 8ead62cf | bellard | abinfo.bytes, bufsize); |
427 | 8ead62cf | bellard | } |
428 | 8ead62cf | bellard | abinfo.bytes = bufsize; |
429 | 8ead62cf | bellard | } |
430 | 8ead62cf | bellard | |
431 | 8ead62cf | bellard | if (abinfo.bytes < 0) { |
432 | 8ead62cf | bellard | if (conf.debug) {
|
433 | 8ead62cf | bellard | dolog ("warning: Invalid available size, size=%d bufsize=%d\n",
|
434 | 8ead62cf | bellard | abinfo.bytes, bufsize); |
435 | 8ead62cf | bellard | } |
436 | 1d14ffa9 | bellard | return 0; |
437 | 85571bc7 | bellard | } |
438 | 85571bc7 | bellard | |
439 | 1d14ffa9 | bellard | decr = audio_MIN (abinfo.bytes >> hw->info.shift, live); |
440 | 1d14ffa9 | bellard | if (!decr) {
|
441 | 1d14ffa9 | bellard | return 0; |
442 | 1d14ffa9 | bellard | } |
443 | 85571bc7 | bellard | } |
444 | 85571bc7 | bellard | |
445 | 9d168976 | malc | decr = audio_pcm_hw_clip_out (hw, oss->pcm_buf, decr, oss->pending); |
446 | 9d168976 | malc | oss->pending += decr; |
447 | 9d168976 | malc | oss_write_pending (oss); |
448 | 85571bc7 | bellard | |
449 | 1d14ffa9 | bellard | return decr;
|
450 | 85571bc7 | bellard | } |
451 | 85571bc7 | bellard | |
452 | 1d14ffa9 | bellard | static void oss_fini_out (HWVoiceOut *hw) |
453 | 85571bc7 | bellard | { |
454 | 85571bc7 | bellard | int err;
|
455 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
456 | 85571bc7 | bellard | |
457 | 1d14ffa9 | bellard | ldebug ("oss_fini\n");
|
458 | 1d14ffa9 | bellard | oss_anal_close (&oss->fd); |
459 | 85571bc7 | bellard | |
460 | 85571bc7 | bellard | if (oss->pcm_buf) {
|
461 | 85571bc7 | bellard | if (oss->mmapped) {
|
462 | c0fe3827 | bellard | err = munmap (oss->pcm_buf, hw->samples << hw->info.shift); |
463 | 85571bc7 | bellard | if (err) {
|
464 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to unmap buffer %p, size %d\n",
|
465 | c0fe3827 | bellard | oss->pcm_buf, hw->samples << hw->info.shift); |
466 | 85571bc7 | bellard | } |
467 | 85571bc7 | bellard | } |
468 | 85571bc7 | bellard | else {
|
469 | 85571bc7 | bellard | qemu_free (oss->pcm_buf); |
470 | 85571bc7 | bellard | } |
471 | 85571bc7 | bellard | oss->pcm_buf = NULL;
|
472 | 85571bc7 | bellard | } |
473 | 85571bc7 | bellard | } |
474 | 85571bc7 | bellard | |
475 | 1ea879e5 | malc | static int oss_init_out (HWVoiceOut *hw, struct audsettings *as) |
476 | 85571bc7 | bellard | { |
477 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
478 | 85571bc7 | bellard | struct oss_params req, obt;
|
479 | 1d14ffa9 | bellard | int endianness;
|
480 | 1d14ffa9 | bellard | int err;
|
481 | 1d14ffa9 | bellard | int fd;
|
482 | 1d14ffa9 | bellard | audfmt_e effective_fmt; |
483 | 1ea879e5 | malc | struct audsettings obt_as;
|
484 | 85571bc7 | bellard | |
485 | 571ec3d6 | bellard | oss->fd = -1;
|
486 | 571ec3d6 | bellard | |
487 | c0fe3827 | bellard | req.fmt = aud_to_ossfmt (as->fmt); |
488 | c0fe3827 | bellard | req.freq = as->freq; |
489 | c0fe3827 | bellard | req.nchannels = as->nchannels; |
490 | 85571bc7 | bellard | req.fragsize = conf.fragsize; |
491 | 85571bc7 | bellard | req.nfrags = conf.nfrags; |
492 | 85571bc7 | bellard | |
493 | 1d14ffa9 | bellard | if (oss_open (0, &req, &obt, &fd)) { |
494 | 85571bc7 | bellard | return -1; |
495 | 1d14ffa9 | bellard | } |
496 | 85571bc7 | bellard | |
497 | 1d14ffa9 | bellard | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
498 | 1d14ffa9 | bellard | if (err) {
|
499 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
500 | 1d14ffa9 | bellard | return -1; |
501 | 1d14ffa9 | bellard | } |
502 | 85571bc7 | bellard | |
503 | c0fe3827 | bellard | obt_as.freq = obt.freq; |
504 | c0fe3827 | bellard | obt_as.nchannels = obt.nchannels; |
505 | c0fe3827 | bellard | obt_as.fmt = effective_fmt; |
506 | d929eba5 | bellard | obt_as.endianness = endianness; |
507 | c0fe3827 | bellard | |
508 | d929eba5 | bellard | audio_pcm_init_info (&hw->info, &obt_as); |
509 | 85571bc7 | bellard | oss->nfrags = obt.nfrags; |
510 | 85571bc7 | bellard | oss->fragsize = obt.fragsize; |
511 | c0fe3827 | bellard | |
512 | c0fe3827 | bellard | if (obt.nfrags * obt.fragsize & hw->info.align) {
|
513 | c0fe3827 | bellard | dolog ("warning: Misaligned DAC buffer, size %d, alignment %d\n",
|
514 | c0fe3827 | bellard | obt.nfrags * obt.fragsize, hw->info.align + 1);
|
515 | c0fe3827 | bellard | } |
516 | c0fe3827 | bellard | |
517 | c0fe3827 | bellard | hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift; |
518 | 85571bc7 | bellard | |
519 | 85571bc7 | bellard | oss->mmapped = 0;
|
520 | 85571bc7 | bellard | if (conf.try_mmap) {
|
521 | c0fe3827 | bellard | oss->pcm_buf = mmap ( |
522 | 660f11be | Blue Swirl | NULL,
|
523 | c0fe3827 | bellard | hw->samples << hw->info.shift, |
524 | c0fe3827 | bellard | PROT_READ | PROT_WRITE, |
525 | c0fe3827 | bellard | MAP_SHARED, |
526 | c0fe3827 | bellard | fd, |
527 | c0fe3827 | bellard | 0
|
528 | c0fe3827 | bellard | ); |
529 | 85571bc7 | bellard | if (oss->pcm_buf == MAP_FAILED) {
|
530 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to map %d bytes of DAC\n",
|
531 | c0fe3827 | bellard | hw->samples << hw->info.shift); |
532 | 54762b73 | malc | } |
533 | 54762b73 | malc | else {
|
534 | 85571bc7 | bellard | int err;
|
535 | 85571bc7 | bellard | int trig = 0; |
536 | 1d14ffa9 | bellard | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
537 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
|
538 | 85571bc7 | bellard | } |
539 | 44a095a7 | bellard | else {
|
540 | 44a095a7 | bellard | trig = PCM_ENABLE_OUTPUT; |
541 | 1d14ffa9 | bellard | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
542 | 1d14ffa9 | bellard | oss_logerr ( |
543 | 1d14ffa9 | bellard | errno, |
544 | 1d14ffa9 | bellard | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
545 | 1d14ffa9 | bellard | ); |
546 | 44a095a7 | bellard | } |
547 | 44a095a7 | bellard | else {
|
548 | 44a095a7 | bellard | oss->mmapped = 1;
|
549 | 44a095a7 | bellard | } |
550 | 85571bc7 | bellard | } |
551 | 85571bc7 | bellard | |
552 | 44a095a7 | bellard | if (!oss->mmapped) {
|
553 | c0fe3827 | bellard | err = munmap (oss->pcm_buf, hw->samples << hw->info.shift); |
554 | 44a095a7 | bellard | if (err) {
|
555 | 1d14ffa9 | bellard | oss_logerr (errno, "Failed to unmap buffer %p size %d\n",
|
556 | c0fe3827 | bellard | oss->pcm_buf, hw->samples << hw->info.shift); |
557 | 44a095a7 | bellard | } |
558 | 85571bc7 | bellard | } |
559 | 85571bc7 | bellard | } |
560 | 85571bc7 | bellard | } |
561 | 85571bc7 | bellard | |
562 | 85571bc7 | bellard | if (!oss->mmapped) {
|
563 | c0fe3827 | bellard | oss->pcm_buf = audio_calloc ( |
564 | c0fe3827 | bellard | AUDIO_FUNC, |
565 | c0fe3827 | bellard | hw->samples, |
566 | c0fe3827 | bellard | 1 << hw->info.shift
|
567 | c0fe3827 | bellard | ); |
568 | 85571bc7 | bellard | if (!oss->pcm_buf) {
|
569 | b41cffbe | bellard | dolog ( |
570 | b41cffbe | bellard | "Could not allocate DAC buffer (%d samples, each %d bytes)\n",
|
571 | b41cffbe | bellard | hw->samples, |
572 | b41cffbe | bellard | 1 << hw->info.shift
|
573 | b41cffbe | bellard | ); |
574 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
575 | 85571bc7 | bellard | return -1; |
576 | 85571bc7 | bellard | } |
577 | 85571bc7 | bellard | } |
578 | 85571bc7 | bellard | |
579 | 1d14ffa9 | bellard | oss->fd = fd; |
580 | 85571bc7 | bellard | return 0; |
581 | 85571bc7 | bellard | } |
582 | 85571bc7 | bellard | |
583 | 1d14ffa9 | bellard | static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...) |
584 | 85571bc7 | bellard | { |
585 | 85571bc7 | bellard | int trig;
|
586 | 1d14ffa9 | bellard | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
587 | 85571bc7 | bellard | |
588 | 85571bc7 | bellard | switch (cmd) {
|
589 | 85571bc7 | bellard | case VOICE_ENABLE:
|
590 | 301901b5 | malc | { |
591 | 301901b5 | malc | va_list ap; |
592 | 301901b5 | malc | int poll_mode;
|
593 | dd8a5649 | malc | |
594 | 301901b5 | malc | va_start (ap, cmd); |
595 | 301901b5 | malc | poll_mode = va_arg (ap, int);
|
596 | 301901b5 | malc | va_end (ap); |
597 | dd8a5649 | malc | |
598 | 301901b5 | malc | ldebug ("enabling voice\n");
|
599 | 301901b5 | malc | if (poll_mode && oss_poll_out (hw)) {
|
600 | 301901b5 | malc | poll_mode = 0;
|
601 | 301901b5 | malc | } |
602 | 301901b5 | malc | hw->poll_mode = poll_mode; |
603 | 301901b5 | malc | |
604 | 301901b5 | malc | if (!oss->mmapped) {
|
605 | 301901b5 | malc | return 0; |
606 | 301901b5 | malc | } |
607 | 301901b5 | malc | |
608 | 301901b5 | malc | audio_pcm_info_clear_buf (&hw->info, oss->pcm_buf, hw->samples); |
609 | 301901b5 | malc | trig = PCM_ENABLE_OUTPUT; |
610 | 301901b5 | malc | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
611 | 301901b5 | malc | oss_logerr ( |
612 | 301901b5 | malc | errno, |
613 | 301901b5 | malc | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
614 | 301901b5 | malc | ); |
615 | 301901b5 | malc | return -1; |
616 | 301901b5 | malc | } |
617 | 85571bc7 | bellard | } |
618 | 85571bc7 | bellard | break;
|
619 | 85571bc7 | bellard | |
620 | 85571bc7 | bellard | case VOICE_DISABLE:
|
621 | dd8a5649 | malc | if (hw->poll_mode) {
|
622 | dd8a5649 | malc | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
623 | dd8a5649 | malc | hw->poll_mode = 0;
|
624 | dd8a5649 | malc | } |
625 | dd8a5649 | malc | |
626 | dd8a5649 | malc | if (!oss->mmapped) {
|
627 | dd8a5649 | malc | return 0; |
628 | dd8a5649 | malc | } |
629 | dd8a5649 | malc | |
630 | 85571bc7 | bellard | ldebug ("disabling voice\n");
|
631 | 85571bc7 | bellard | trig = 0;
|
632 | 85571bc7 | bellard | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
633 | 1d14ffa9 | bellard | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n");
|
634 | 85571bc7 | bellard | return -1; |
635 | 85571bc7 | bellard | } |
636 | 85571bc7 | bellard | break;
|
637 | 85571bc7 | bellard | } |
638 | 85571bc7 | bellard | return 0; |
639 | 85571bc7 | bellard | } |
640 | 85571bc7 | bellard | |
641 | 1ea879e5 | malc | static int oss_init_in (HWVoiceIn *hw, struct audsettings *as) |
642 | 1d14ffa9 | bellard | { |
643 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
644 | 1d14ffa9 | bellard | struct oss_params req, obt;
|
645 | 1d14ffa9 | bellard | int endianness;
|
646 | 1d14ffa9 | bellard | int err;
|
647 | 1d14ffa9 | bellard | int fd;
|
648 | 1d14ffa9 | bellard | audfmt_e effective_fmt; |
649 | 1ea879e5 | malc | struct audsettings obt_as;
|
650 | 1d14ffa9 | bellard | |
651 | 571ec3d6 | bellard | oss->fd = -1;
|
652 | 571ec3d6 | bellard | |
653 | c0fe3827 | bellard | req.fmt = aud_to_ossfmt (as->fmt); |
654 | c0fe3827 | bellard | req.freq = as->freq; |
655 | c0fe3827 | bellard | req.nchannels = as->nchannels; |
656 | 1d14ffa9 | bellard | req.fragsize = conf.fragsize; |
657 | 1d14ffa9 | bellard | req.nfrags = conf.nfrags; |
658 | 1d14ffa9 | bellard | if (oss_open (1, &req, &obt, &fd)) { |
659 | 1d14ffa9 | bellard | return -1; |
660 | 1d14ffa9 | bellard | } |
661 | 1d14ffa9 | bellard | |
662 | 1d14ffa9 | bellard | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
663 | 1d14ffa9 | bellard | if (err) {
|
664 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
665 | 1d14ffa9 | bellard | return -1; |
666 | 1d14ffa9 | bellard | } |
667 | 1d14ffa9 | bellard | |
668 | c0fe3827 | bellard | obt_as.freq = obt.freq; |
669 | c0fe3827 | bellard | obt_as.nchannels = obt.nchannels; |
670 | c0fe3827 | bellard | obt_as.fmt = effective_fmt; |
671 | d929eba5 | bellard | obt_as.endianness = endianness; |
672 | c0fe3827 | bellard | |
673 | d929eba5 | bellard | audio_pcm_init_info (&hw->info, &obt_as); |
674 | 1d14ffa9 | bellard | oss->nfrags = obt.nfrags; |
675 | 1d14ffa9 | bellard | oss->fragsize = obt.fragsize; |
676 | c0fe3827 | bellard | |
677 | c0fe3827 | bellard | if (obt.nfrags * obt.fragsize & hw->info.align) {
|
678 | c0fe3827 | bellard | dolog ("warning: Misaligned ADC buffer, size %d, alignment %d\n",
|
679 | c0fe3827 | bellard | obt.nfrags * obt.fragsize, hw->info.align + 1);
|
680 | c0fe3827 | bellard | } |
681 | c0fe3827 | bellard | |
682 | c0fe3827 | bellard | hw->samples = (obt.nfrags * obt.fragsize) >> hw->info.shift; |
683 | c0fe3827 | bellard | oss->pcm_buf = audio_calloc (AUDIO_FUNC, hw->samples, 1 << hw->info.shift);
|
684 | 1d14ffa9 | bellard | if (!oss->pcm_buf) {
|
685 | b41cffbe | bellard | dolog ("Could not allocate ADC buffer (%d samples, each %d bytes)\n",
|
686 | b41cffbe | bellard | hw->samples, 1 << hw->info.shift);
|
687 | 1d14ffa9 | bellard | oss_anal_close (&fd); |
688 | 1d14ffa9 | bellard | return -1; |
689 | 1d14ffa9 | bellard | } |
690 | 1d14ffa9 | bellard | |
691 | 1d14ffa9 | bellard | oss->fd = fd; |
692 | 1d14ffa9 | bellard | return 0; |
693 | 1d14ffa9 | bellard | } |
694 | 1d14ffa9 | bellard | |
695 | 1d14ffa9 | bellard | static void oss_fini_in (HWVoiceIn *hw) |
696 | 1d14ffa9 | bellard | { |
697 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
698 | 1d14ffa9 | bellard | |
699 | 1d14ffa9 | bellard | oss_anal_close (&oss->fd); |
700 | 1d14ffa9 | bellard | |
701 | 1d14ffa9 | bellard | if (oss->pcm_buf) {
|
702 | 1d14ffa9 | bellard | qemu_free (oss->pcm_buf); |
703 | 1d14ffa9 | bellard | oss->pcm_buf = NULL;
|
704 | 1d14ffa9 | bellard | } |
705 | 1d14ffa9 | bellard | } |
706 | 1d14ffa9 | bellard | |
707 | 1d14ffa9 | bellard | static int oss_run_in (HWVoiceIn *hw) |
708 | 1d14ffa9 | bellard | { |
709 | 1d14ffa9 | bellard | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
710 | 1d14ffa9 | bellard | int hwshift = hw->info.shift;
|
711 | 1d14ffa9 | bellard | int i;
|
712 | 1d14ffa9 | bellard | int live = audio_pcm_hw_get_live_in (hw);
|
713 | 1d14ffa9 | bellard | int dead = hw->samples - live;
|
714 | 1d14ffa9 | bellard | size_t read_samples = 0;
|
715 | 1d14ffa9 | bellard | struct {
|
716 | 1d14ffa9 | bellard | int add;
|
717 | 1d14ffa9 | bellard | int len;
|
718 | 1d14ffa9 | bellard | } bufs[2] = {
|
719 | 98f9f48c | malc | { .add = hw->wpos, .len = 0 },
|
720 | 98f9f48c | malc | { .add = 0, .len = 0 } |
721 | 1d14ffa9 | bellard | }; |
722 | 1d14ffa9 | bellard | |
723 | 1d14ffa9 | bellard | if (!dead) {
|
724 | 1d14ffa9 | bellard | return 0; |
725 | 1d14ffa9 | bellard | } |
726 | 1d14ffa9 | bellard | |
727 | 1d14ffa9 | bellard | if (hw->wpos + dead > hw->samples) {
|
728 | 1d14ffa9 | bellard | bufs[0].len = (hw->samples - hw->wpos) << hwshift;
|
729 | 1d14ffa9 | bellard | bufs[1].len = (dead - (hw->samples - hw->wpos)) << hwshift;
|
730 | 1d14ffa9 | bellard | } |
731 | 1d14ffa9 | bellard | else {
|
732 | 1d14ffa9 | bellard | bufs[0].len = dead << hwshift;
|
733 | 1d14ffa9 | bellard | } |
734 | 1d14ffa9 | bellard | |
735 | 1d14ffa9 | bellard | for (i = 0; i < 2; ++i) { |
736 | 1d14ffa9 | bellard | ssize_t nread; |
737 | 1d14ffa9 | bellard | |
738 | 1d14ffa9 | bellard | if (bufs[i].len) {
|
739 | 1d14ffa9 | bellard | void *p = advance (oss->pcm_buf, bufs[i].add << hwshift);
|
740 | 1d14ffa9 | bellard | nread = read (oss->fd, p, bufs[i].len); |
741 | 1d14ffa9 | bellard | |
742 | 1d14ffa9 | bellard | if (nread > 0) { |
743 | 1d14ffa9 | bellard | if (nread & hw->info.align) {
|
744 | b41cffbe | bellard | dolog ("warning: Misaligned read %zd (requested %d), "
|
745 | 1d14ffa9 | bellard | "alignment %d\n", nread, bufs[i].add << hwshift,
|
746 | 1d14ffa9 | bellard | hw->info.align + 1);
|
747 | 1d14ffa9 | bellard | } |
748 | 1d14ffa9 | bellard | read_samples += nread >> hwshift; |
749 | 1d14ffa9 | bellard | hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift, |
750 | 1d14ffa9 | bellard | &nominal_volume); |
751 | 1d14ffa9 | bellard | } |
752 | 1d14ffa9 | bellard | |
753 | 1d14ffa9 | bellard | if (bufs[i].len - nread) {
|
754 | 1d14ffa9 | bellard | if (nread == -1) { |
755 | 1d14ffa9 | bellard | switch (errno) {
|
756 | 1d14ffa9 | bellard | case EINTR:
|
757 | 1d14ffa9 | bellard | case EAGAIN:
|
758 | 1d14ffa9 | bellard | break;
|
759 | 1d14ffa9 | bellard | default:
|
760 | 1d14ffa9 | bellard | oss_logerr ( |
761 | 1d14ffa9 | bellard | errno, |
762 | 1d14ffa9 | bellard | "Failed to read %d bytes of audio (to %p)\n",
|
763 | 1d14ffa9 | bellard | bufs[i].len, p |
764 | 1d14ffa9 | bellard | ); |
765 | 1d14ffa9 | bellard | break;
|
766 | 1d14ffa9 | bellard | } |
767 | 1d14ffa9 | bellard | } |
768 | 1d14ffa9 | bellard | break;
|
769 | 1d14ffa9 | bellard | } |
770 | 1d14ffa9 | bellard | } |
771 | 1d14ffa9 | bellard | } |
772 | 1d14ffa9 | bellard | |
773 | 1d14ffa9 | bellard | hw->wpos = (hw->wpos + read_samples) % hw->samples; |
774 | 1d14ffa9 | bellard | return read_samples;
|
775 | 1d14ffa9 | bellard | } |
776 | 1d14ffa9 | bellard | |
777 | 1d14ffa9 | bellard | static int oss_read (SWVoiceIn *sw, void *buf, int size) |
778 | 1d14ffa9 | bellard | { |
779 | 1d14ffa9 | bellard | return audio_pcm_sw_read (sw, buf, size);
|
780 | 1d14ffa9 | bellard | } |
781 | 1d14ffa9 | bellard | |
782 | 1d14ffa9 | bellard | static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...) |
783 | 1d14ffa9 | bellard | { |
784 | dd8a5649 | malc | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
785 | dd8a5649 | malc | |
786 | dd8a5649 | malc | switch (cmd) {
|
787 | dd8a5649 | malc | case VOICE_ENABLE:
|
788 | a628b869 | malc | { |
789 | a628b869 | malc | va_list ap; |
790 | a628b869 | malc | int poll_mode;
|
791 | a628b869 | malc | |
792 | a628b869 | malc | va_start (ap, cmd); |
793 | a628b869 | malc | poll_mode = va_arg (ap, int);
|
794 | a628b869 | malc | va_end (ap); |
795 | a628b869 | malc | |
796 | a628b869 | malc | if (poll_mode && oss_poll_in (hw)) {
|
797 | a628b869 | malc | poll_mode = 0;
|
798 | a628b869 | malc | } |
799 | a628b869 | malc | hw->poll_mode = poll_mode; |
800 | dd8a5649 | malc | } |
801 | dd8a5649 | malc | break;
|
802 | dd8a5649 | malc | |
803 | dd8a5649 | malc | case VOICE_DISABLE:
|
804 | dd8a5649 | malc | if (hw->poll_mode) {
|
805 | dd8a5649 | malc | hw->poll_mode = 0;
|
806 | dd8a5649 | malc | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
807 | dd8a5649 | malc | } |
808 | dd8a5649 | malc | break;
|
809 | dd8a5649 | malc | } |
810 | 1d14ffa9 | bellard | return 0; |
811 | 1d14ffa9 | bellard | } |
812 | 1d14ffa9 | bellard | |
813 | 85571bc7 | bellard | static void *oss_audio_init (void) |
814 | 85571bc7 | bellard | { |
815 | 85571bc7 | bellard | return &conf;
|
816 | 85571bc7 | bellard | } |
817 | 85571bc7 | bellard | |
818 | 85571bc7 | bellard | static void oss_audio_fini (void *opaque) |
819 | 85571bc7 | bellard | { |
820 | 1d14ffa9 | bellard | (void) opaque;
|
821 | 85571bc7 | bellard | } |
822 | 85571bc7 | bellard | |
823 | 1d14ffa9 | bellard | static struct audio_option oss_options[] = { |
824 | 98f9f48c | malc | { |
825 | 98f9f48c | malc | .name = "FRAGSIZE",
|
826 | 98f9f48c | malc | .tag = AUD_OPT_INT, |
827 | 98f9f48c | malc | .valp = &conf.fragsize, |
828 | 98f9f48c | malc | .descr = "Fragment size in bytes"
|
829 | 98f9f48c | malc | }, |
830 | 98f9f48c | malc | { |
831 | 98f9f48c | malc | .name = "NFRAGS",
|
832 | 98f9f48c | malc | .tag = AUD_OPT_INT, |
833 | 98f9f48c | malc | .valp = &conf.nfrags, |
834 | 98f9f48c | malc | .descr = "Number of fragments"
|
835 | 98f9f48c | malc | }, |
836 | 98f9f48c | malc | { |
837 | 98f9f48c | malc | .name = "MMAP",
|
838 | 98f9f48c | malc | .tag = AUD_OPT_BOOL, |
839 | 98f9f48c | malc | .valp = &conf.try_mmap, |
840 | 98f9f48c | malc | .descr = "Try using memory mapped access"
|
841 | 98f9f48c | malc | }, |
842 | 98f9f48c | malc | { |
843 | 98f9f48c | malc | .name = "DAC_DEV",
|
844 | 98f9f48c | malc | .tag = AUD_OPT_STR, |
845 | 98f9f48c | malc | .valp = &conf.devpath_out, |
846 | 98f9f48c | malc | .descr = "Path to DAC device"
|
847 | 98f9f48c | malc | }, |
848 | 98f9f48c | malc | { |
849 | 98f9f48c | malc | .name = "ADC_DEV",
|
850 | 98f9f48c | malc | .tag = AUD_OPT_STR, |
851 | 98f9f48c | malc | .valp = &conf.devpath_in, |
852 | 98f9f48c | malc | .descr = "Path to ADC device"
|
853 | 98f9f48c | malc | }, |
854 | 98f9f48c | malc | { |
855 | 0b3652bc | malc | .name = "EXCLUSIVE",
|
856 | 0b3652bc | malc | .tag = AUD_OPT_BOOL, |
857 | 0b3652bc | malc | .valp = &conf.exclusive, |
858 | 0b3652bc | malc | .descr = "Open device in exclusive mode (vmix wont work)"
|
859 | 0b3652bc | malc | }, |
860 | 0b3652bc | malc | #ifdef SNDCTL_DSP_POLICY
|
861 | 0b3652bc | malc | { |
862 | 0b3652bc | malc | .name = "POLICY",
|
863 | 0b3652bc | malc | .tag = AUD_OPT_INT, |
864 | 0b3652bc | malc | .valp = &conf.policy, |
865 | 0b3652bc | malc | .descr = "Set the timing policy of the device, -1 to use fragment mode",
|
866 | 0b3652bc | malc | }, |
867 | 0b3652bc | malc | #endif
|
868 | 0b3652bc | malc | { |
869 | 98f9f48c | malc | .name = "DEBUG",
|
870 | 98f9f48c | malc | .tag = AUD_OPT_BOOL, |
871 | 98f9f48c | malc | .valp = &conf.debug, |
872 | 98f9f48c | malc | .descr = "Turn on some debugging messages"
|
873 | 98f9f48c | malc | }, |
874 | 2700efa3 | Juan Quintela | { /* End of list */ }
|
875 | 1d14ffa9 | bellard | }; |
876 | 1d14ffa9 | bellard | |
877 | 35f4b58c | blueswir1 | static struct audio_pcm_ops oss_pcm_ops = { |
878 | 1dd3e4d1 | Juan Quintela | .init_out = oss_init_out, |
879 | 1dd3e4d1 | Juan Quintela | .fini_out = oss_fini_out, |
880 | 1dd3e4d1 | Juan Quintela | .run_out = oss_run_out, |
881 | 1dd3e4d1 | Juan Quintela | .write = oss_write, |
882 | 1dd3e4d1 | Juan Quintela | .ctl_out = oss_ctl_out, |
883 | 1dd3e4d1 | Juan Quintela | |
884 | 1dd3e4d1 | Juan Quintela | .init_in = oss_init_in, |
885 | 1dd3e4d1 | Juan Quintela | .fini_in = oss_fini_in, |
886 | 1dd3e4d1 | Juan Quintela | .run_in = oss_run_in, |
887 | 1dd3e4d1 | Juan Quintela | .read = oss_read, |
888 | 1dd3e4d1 | Juan Quintela | .ctl_in = oss_ctl_in |
889 | 85571bc7 | bellard | }; |
890 | 85571bc7 | bellard | |
891 | 1d14ffa9 | bellard | struct audio_driver oss_audio_driver = {
|
892 | bee37f32 | Juan Quintela | .name = "oss",
|
893 | bee37f32 | Juan Quintela | .descr = "OSS http://www.opensound.com",
|
894 | bee37f32 | Juan Quintela | .options = oss_options, |
895 | bee37f32 | Juan Quintela | .init = oss_audio_init, |
896 | bee37f32 | Juan Quintela | .fini = oss_audio_fini, |
897 | bee37f32 | Juan Quintela | .pcm_ops = &oss_pcm_ops, |
898 | bee37f32 | Juan Quintela | .can_be_default = 1,
|
899 | bee37f32 | Juan Quintela | .max_voices_out = INT_MAX, |
900 | bee37f32 | Juan Quintela | .max_voices_in = INT_MAX, |
901 | bee37f32 | Juan Quintela | .voice_size_out = sizeof (OSSVoiceOut),
|
902 | bee37f32 | Juan Quintela | .voice_size_in = sizeof (OSSVoiceIn)
|
903 | 85571bc7 | bellard | }; |