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Commit | Line | Data |
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85571bc7 | 1 | /* |
1d14ffa9 FB |
2 | * QEMU OSS audio driver |
3 | * | |
4 | * Copyright (c) 2003-2005 Vassili Karpov (malc) | |
5 | * | |
85571bc7 FB |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
0b8fa32f | 24 | |
6086a565 | 25 | #include "qemu/osdep.h" |
85571bc7 FB |
26 | #include <sys/ioctl.h> |
27 | #include <sys/soundcard.h> | |
1de7afc9 | 28 | #include "qemu/main-loop.h" |
0b8fa32f | 29 | #include "qemu/module.h" |
1de7afc9 | 30 | #include "qemu/host-utils.h" |
87ecb68b | 31 | #include "audio.h" |
d95d7d80 | 32 | #include "trace.h" |
fb065187 | 33 | |
1d14ffa9 FB |
34 | #define AUDIO_CAP "oss" |
35 | #include "audio_int.h" | |
fb065187 | 36 | |
78d9356d | 37 | #if defined OSS_GETVERSION && defined SNDCTL_DSP_POLICY |
38 | #define USE_DSP_POLICY | |
39 | #endif | |
40 | ||
1d14ffa9 FB |
41 | typedef struct OSSVoiceOut { |
42 | HWVoiceOut hw; | |
fb065187 FB |
43 | int fd; |
44 | int nfrags; | |
45 | int fragsize; | |
46 | int mmapped; | |
baf6c7f4 | 47 | Audiodev *dev; |
1d14ffa9 | 48 | } OSSVoiceOut; |
85571bc7 | 49 | |
1d14ffa9 FB |
50 | typedef struct OSSVoiceIn { |
51 | HWVoiceIn hw; | |
1d14ffa9 FB |
52 | int fd; |
53 | int nfrags; | |
54 | int fragsize; | |
baf6c7f4 | 55 | Audiodev *dev; |
1d14ffa9 | 56 | } OSSVoiceIn; |
85571bc7 | 57 | |
85571bc7 FB |
58 | struct oss_params { |
59 | int freq; | |
baf6c7f4 | 60 | int fmt; |
85571bc7 FB |
61 | int nchannels; |
62 | int nfrags; | |
63 | int fragsize; | |
64 | }; | |
65 | ||
1d14ffa9 | 66 | static void GCC_FMT_ATTR (2, 3) oss_logerr (int err, const char *fmt, ...) |
85571bc7 | 67 | { |
1d14ffa9 FB |
68 | va_list ap; |
69 | ||
571ec3d6 | 70 | va_start (ap, fmt); |
1d14ffa9 | 71 | AUD_vlog (AUDIO_CAP, fmt, ap); |
571ec3d6 | 72 | va_end (ap); |
1d14ffa9 | 73 | |
1d14ffa9 | 74 | AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err)); |
85571bc7 FB |
75 | } |
76 | ||
1d14ffa9 FB |
77 | static void GCC_FMT_ATTR (3, 4) oss_logerr2 ( |
78 | int err, | |
79 | const char *typ, | |
80 | const char *fmt, | |
81 | ... | |
82 | ) | |
83 | { | |
84 | va_list ap; | |
85 | ||
c0fe3827 | 86 | AUD_log (AUDIO_CAP, "Could not initialize %s\n", typ); |
1d14ffa9 FB |
87 | |
88 | va_start (ap, fmt); | |
89 | AUD_vlog (AUDIO_CAP, fmt, ap); | |
90 | va_end (ap); | |
91 | ||
92 | AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err)); | |
93 | } | |
94 | ||
95 | static void oss_anal_close (int *fdp) | |
96 | { | |
6ebfda13 | 97 | int err; |
98 | ||
99 | qemu_set_fd_handler (*fdp, NULL, NULL, NULL); | |
100 | err = close (*fdp); | |
1d14ffa9 FB |
101 | if (err) { |
102 | oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp); | |
103 | } | |
104 | *fdp = -1; | |
105 | } | |
106 | ||
dd8a5649 | 107 | static void oss_helper_poll_out (void *opaque) |
108 | { | |
18e2c177 KZ |
109 | AudioState *s = opaque; |
110 | audio_run(s, "oss_poll_out"); | |
dd8a5649 | 111 | } |
112 | ||
113 | static void oss_helper_poll_in (void *opaque) | |
114 | { | |
18e2c177 KZ |
115 | AudioState *s = opaque; |
116 | audio_run(s, "oss_poll_in"); | |
dd8a5649 | 117 | } |
118 | ||
b027a538 | 119 | static void oss_poll_out (HWVoiceOut *hw) |
dd8a5649 | 120 | { |
121 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; | |
122 | ||
18e2c177 | 123 | qemu_set_fd_handler(oss->fd, NULL, oss_helper_poll_out, hw->s); |
dd8a5649 | 124 | } |
125 | ||
b027a538 | 126 | static void oss_poll_in (HWVoiceIn *hw) |
dd8a5649 | 127 | { |
128 | OSSVoiceIn *oss = (OSSVoiceIn *) hw; | |
129 | ||
18e2c177 | 130 | qemu_set_fd_handler(oss->fd, oss_helper_poll_in, NULL, hw->s); |
dd8a5649 | 131 | } |
132 | ||
85bc5852 | 133 | static int aud_to_ossfmt (AudioFormat fmt, int endianness) |
85571bc7 FB |
134 | { |
135 | switch (fmt) { | |
85bc5852 | 136 | case AUDIO_FORMAT_S8: |
1d14ffa9 FB |
137 | return AFMT_S8; |
138 | ||
85bc5852 | 139 | case AUDIO_FORMAT_U8: |
1d14ffa9 FB |
140 | return AFMT_U8; |
141 | ||
85bc5852 | 142 | case AUDIO_FORMAT_S16: |
b6c9c940 MW |
143 | if (endianness) { |
144 | return AFMT_S16_BE; | |
6c6886bd | 145 | } else { |
b6c9c940 MW |
146 | return AFMT_S16_LE; |
147 | } | |
1d14ffa9 | 148 | |
85bc5852 | 149 | case AUDIO_FORMAT_U16: |
b6c9c940 MW |
150 | if (endianness) { |
151 | return AFMT_U16_BE; | |
6c6886bd | 152 | } else { |
b6c9c940 MW |
153 | return AFMT_U16_LE; |
154 | } | |
1d14ffa9 | 155 | |
85571bc7 | 156 | default: |
1d14ffa9 FB |
157 | dolog ("Internal logic error: Bad audio format %d\n", fmt); |
158 | #ifdef DEBUG_AUDIO | |
159 | abort (); | |
160 | #endif | |
161 | return AFMT_U8; | |
85571bc7 FB |
162 | } |
163 | } | |
164 | ||
85bc5852 | 165 | static int oss_to_audfmt (int ossfmt, AudioFormat *fmt, int *endianness) |
85571bc7 | 166 | { |
1d14ffa9 FB |
167 | switch (ossfmt) { |
168 | case AFMT_S8: | |
ca9cc28c | 169 | *endianness = 0; |
85bc5852 | 170 | *fmt = AUDIO_FORMAT_S8; |
1d14ffa9 FB |
171 | break; |
172 | ||
173 | case AFMT_U8: | |
174 | *endianness = 0; | |
85bc5852 | 175 | *fmt = AUDIO_FORMAT_U8; |
1d14ffa9 FB |
176 | break; |
177 | ||
178 | case AFMT_S16_LE: | |
179 | *endianness = 0; | |
85bc5852 | 180 | *fmt = AUDIO_FORMAT_S16; |
1d14ffa9 FB |
181 | break; |
182 | ||
183 | case AFMT_U16_LE: | |
184 | *endianness = 0; | |
85bc5852 | 185 | *fmt = AUDIO_FORMAT_U16; |
1d14ffa9 FB |
186 | break; |
187 | ||
188 | case AFMT_S16_BE: | |
189 | *endianness = 1; | |
85bc5852 | 190 | *fmt = AUDIO_FORMAT_S16; |
1d14ffa9 FB |
191 | break; |
192 | ||
193 | case AFMT_U16_BE: | |
194 | *endianness = 1; | |
85bc5852 | 195 | *fmt = AUDIO_FORMAT_U16; |
1d14ffa9 FB |
196 | break; |
197 | ||
85571bc7 | 198 | default: |
1d14ffa9 FB |
199 | dolog ("Unrecognized audio format %d\n", ossfmt); |
200 | return -1; | |
85571bc7 | 201 | } |
1d14ffa9 FB |
202 | |
203 | return 0; | |
85571bc7 FB |
204 | } |
205 | ||
c0fe3827 | 206 | #if defined DEBUG_MISMATCHES || defined DEBUG |
1d14ffa9 | 207 | static void oss_dump_info (struct oss_params *req, struct oss_params *obt) |
85571bc7 FB |
208 | { |
209 | dolog ("parameter | requested value | obtained value\n"); | |
210 | dolog ("format | %10d | %10d\n", req->fmt, obt->fmt); | |
1d14ffa9 FB |
211 | dolog ("channels | %10d | %10d\n", |
212 | req->nchannels, obt->nchannels); | |
85571bc7 FB |
213 | dolog ("frequency | %10d | %10d\n", req->freq, obt->freq); |
214 | dolog ("nfrags | %10d | %10d\n", req->nfrags, obt->nfrags); | |
1d14ffa9 FB |
215 | dolog ("fragsize | %10d | %10d\n", |
216 | req->fragsize, obt->fragsize); | |
85571bc7 FB |
217 | } |
218 | #endif | |
219 | ||
72ff25e4 JL |
220 | #ifdef USE_DSP_POLICY |
221 | static int oss_get_version (int fd, int *version, const char *typ) | |
222 | { | |
223 | if (ioctl (fd, OSS_GETVERSION, &version)) { | |
224 | #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) | |
225 | /* | |
226 | * Looks like atm (20100109) FreeBSD knows OSS_GETVERSION | |
227 | * since 7.x, but currently only on the mixer device (or in | |
228 | * the Linuxolator), and in the native version that part of | |
229 | * the code is in fact never reached so the ioctl fails anyway. | |
230 | * Until this is fixed, just check the errno and if its what | |
231 | * FreeBSD's sound drivers return atm assume they are new enough. | |
232 | */ | |
233 | if (errno == EINVAL) { | |
234 | *version = 0x040000; | |
235 | return 0; | |
236 | } | |
237 | #endif | |
238 | oss_logerr2 (errno, typ, "Failed to get OSS version\n"); | |
239 | return -1; | |
240 | } | |
241 | return 0; | |
242 | } | |
243 | #endif | |
244 | ||
baf6c7f4 KZ |
245 | static int oss_open(int in, struct oss_params *req, audsettings *as, |
246 | struct oss_params *obt, int *pfd, Audiodev *dev) | |
85571bc7 | 247 | { |
baf6c7f4 KZ |
248 | AudiodevOssOptions *oopts = &dev->u.oss; |
249 | AudiodevOssPerDirectionOptions *opdo = in ? oopts->in : oopts->out; | |
85571bc7 | 250 | int fd; |
baf6c7f4 | 251 | int oflags = (oopts->has_exclusive && oopts->exclusive) ? O_EXCL : 0; |
85571bc7 FB |
252 | audio_buf_info abinfo; |
253 | int fmt, freq, nchannels; | |
3d709fe7 | 254 | int setfragment = 1; |
baf6c7f4 | 255 | const char *dspname = opdo->has_dev ? opdo->dev : "/dev/dsp"; |
1d14ffa9 | 256 | const char *typ = in ? "ADC" : "DAC"; |
baf6c7f4 KZ |
257 | #ifdef USE_DSP_POLICY |
258 | int policy = oopts->has_dsp_policy ? oopts->dsp_policy : 5; | |
259 | #endif | |
85571bc7 | 260 | |
2182349d | 261 | /* Kludge needed to have working mmap on Linux */ |
baf6c7f4 KZ |
262 | oflags |= (oopts->has_try_mmap && oopts->try_mmap) ? |
263 | O_RDWR : (in ? O_RDONLY : O_WRONLY); | |
0b3652bc | 264 | |
2182349d | 265 | fd = open (dspname, oflags | O_NONBLOCK); |
85571bc7 | 266 | if (-1 == fd) { |
1d14ffa9 | 267 | oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname); |
85571bc7 FB |
268 | return -1; |
269 | } | |
270 | ||
271 | freq = req->freq; | |
272 | nchannels = req->nchannels; | |
273 | fmt = req->fmt; | |
baf6c7f4 KZ |
274 | req->nfrags = opdo->has_buffer_count ? opdo->buffer_count : 4; |
275 | req->fragsize = audio_buffer_bytes( | |
276 | qapi_AudiodevOssPerDirectionOptions_base(opdo), as, 23220); | |
85571bc7 FB |
277 | |
278 | if (ioctl (fd, SNDCTL_DSP_SAMPLESIZE, &fmt)) { | |
1d14ffa9 | 279 | oss_logerr2 (errno, typ, "Failed to set sample size %d\n", req->fmt); |
85571bc7 FB |
280 | goto err; |
281 | } | |
282 | ||
283 | if (ioctl (fd, SNDCTL_DSP_CHANNELS, &nchannels)) { | |
1d14ffa9 FB |
284 | oss_logerr2 (errno, typ, "Failed to set number of channels %d\n", |
285 | req->nchannels); | |
85571bc7 FB |
286 | goto err; |
287 | } | |
288 | ||
289 | if (ioctl (fd, SNDCTL_DSP_SPEED, &freq)) { | |
1d14ffa9 | 290 | oss_logerr2 (errno, typ, "Failed to set frequency %d\n", req->freq); |
85571bc7 FB |
291 | goto err; |
292 | } | |
293 | ||
902e2b51 | 294 | if (ioctl (fd, SNDCTL_DSP_NONBLOCK, NULL)) { |
1d14ffa9 | 295 | oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n"); |
85571bc7 FB |
296 | goto err; |
297 | } | |
298 | ||
78d9356d | 299 | #ifdef USE_DSP_POLICY |
baf6c7f4 | 300 | if (policy >= 0) { |
6d246526 | 301 | int version; |
0b3652bc | 302 | |
72ff25e4 | 303 | if (!oss_get_version (fd, &version, typ)) { |
d95d7d80 | 304 | trace_oss_version(version); |
6d246526 | 305 | |
3d709fe7 | 306 | if (version >= 0x040000) { |
baf6c7f4 KZ |
307 | int policy2 = policy; |
308 | if (ioctl(fd, SNDCTL_DSP_POLICY, &policy2)) { | |
3d709fe7 | 309 | oss_logerr2 (errno, typ, |
310 | "Failed to set timing policy to %d\n", | |
baf6c7f4 | 311 | policy); |
3d709fe7 | 312 | goto err; |
313 | } | |
314 | setfragment = 0; | |
6d246526 | 315 | } |
0b3652bc | 316 | } |
317 | } | |
0b3652bc | 318 | #endif |
3d709fe7 | 319 | |
320 | if (setfragment) { | |
0b3652bc | 321 | int mmmmssss = (req->nfrags << 16) | ctz32 (req->fragsize); |
322 | if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) { | |
323 | oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n", | |
324 | req->nfrags, req->fragsize); | |
325 | goto err; | |
326 | } | |
85571bc7 FB |
327 | } |
328 | ||
1d14ffa9 FB |
329 | if (ioctl (fd, in ? SNDCTL_DSP_GETISPACE : SNDCTL_DSP_GETOSPACE, &abinfo)) { |
330 | oss_logerr2 (errno, typ, "Failed to get buffer length\n"); | |
85571bc7 FB |
331 | goto err; |
332 | } | |
333 | ||
29ddf27b | 334 | if (!abinfo.fragstotal || !abinfo.fragsize) { |
335 | AUD_log (AUDIO_CAP, "Returned bogus buffer information(%d, %d) for %s\n", | |
336 | abinfo.fragstotal, abinfo.fragsize, typ); | |
337 | goto err; | |
338 | } | |
339 | ||
85571bc7 FB |
340 | obt->fmt = fmt; |
341 | obt->nchannels = nchannels; | |
342 | obt->freq = freq; | |
343 | obt->nfrags = abinfo.fragstotal; | |
344 | obt->fragsize = abinfo.fragsize; | |
345 | *pfd = fd; | |
346 | ||
c0fe3827 | 347 | #ifdef DEBUG_MISMATCHES |
85571bc7 FB |
348 | if ((req->fmt != obt->fmt) || |
349 | (req->nchannels != obt->nchannels) || | |
350 | (req->freq != obt->freq) || | |
351 | (req->fragsize != obt->fragsize) || | |
352 | (req->nfrags != obt->nfrags)) { | |
85571bc7 | 353 | dolog ("Audio parameters mismatch\n"); |
1d14ffa9 | 354 | oss_dump_info (req, obt); |
85571bc7 | 355 | } |
c0fe3827 | 356 | #endif |
85571bc7 | 357 | |
1d14ffa9 FB |
358 | #ifdef DEBUG |
359 | oss_dump_info (req, obt); | |
85571bc7 FB |
360 | #endif |
361 | return 0; | |
362 | ||
1d14ffa9 FB |
363 | err: |
364 | oss_anal_close (&fd); | |
85571bc7 FB |
365 | return -1; |
366 | } | |
367 | ||
3ba4066d | 368 | static size_t oss_get_available_bytes(OSSVoiceOut *oss) |
9d168976 | 369 | { |
3ba4066d KZ |
370 | int err; |
371 | struct count_info cntinfo; | |
372 | assert(oss->mmapped); | |
9d168976 | 373 | |
3ba4066d KZ |
374 | err = ioctl(oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo); |
375 | if (err < 0) { | |
376 | oss_logerr(errno, "SNDCTL_DSP_GETOPTR failed\n"); | |
377 | return 0; | |
9d168976 | 378 | } |
379 | ||
3ba4066d KZ |
380 | return audio_ring_dist(cntinfo.ptr, oss->hw.pos_emul, oss->hw.size_emul); |
381 | } | |
9d168976 | 382 | |
fdc8c5f4 VR |
383 | static void oss_run_buffer_out(HWVoiceOut *hw) |
384 | { | |
385 | OSSVoiceOut *oss = (OSSVoiceOut *)hw; | |
386 | ||
387 | if (!oss->mmapped) { | |
388 | audio_generic_run_buffer_out(hw); | |
389 | } | |
390 | } | |
391 | ||
3ba4066d KZ |
392 | static void *oss_get_buffer_out(HWVoiceOut *hw, size_t *size) |
393 | { | |
394 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; | |
395 | if (oss->mmapped) { | |
396 | *size = MIN(oss_get_available_bytes(oss), hw->size_emul - hw->pos_emul); | |
397 | return hw->buf_emul + hw->pos_emul; | |
398 | } else { | |
399 | return audio_generic_get_buffer_out(hw, size); | |
400 | } | |
401 | } | |
9d168976 | 402 | |
3ba4066d KZ |
403 | static size_t oss_put_buffer_out(HWVoiceOut *hw, void *buf, size_t size) |
404 | { | |
405 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; | |
406 | if (oss->mmapped) { | |
407 | assert(buf == hw->buf_emul + hw->pos_emul && size < hw->size_emul); | |
9d168976 | 408 | |
3ba4066d KZ |
409 | hw->pos_emul = (hw->pos_emul + size) % hw->size_emul; |
410 | return size; | |
411 | } else { | |
412 | return audio_generic_put_buffer_out(hw, buf, size); | |
9d168976 | 413 | } |
414 | } | |
415 | ||
3ba4066d | 416 | static size_t oss_write(HWVoiceOut *hw, void *buf, size_t len) |
85571bc7 | 417 | { |
1d14ffa9 | 418 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
3ba4066d | 419 | size_t pos; |
c0fe3827 | 420 | |
85571bc7 | 421 | if (oss->mmapped) { |
3ba4066d KZ |
422 | size_t total_len; |
423 | len = MIN(len, oss_get_available_bytes(oss)); | |
85571bc7 | 424 | |
3ba4066d KZ |
425 | total_len = len; |
426 | while (len) { | |
427 | size_t to_copy = MIN(len, hw->size_emul - hw->pos_emul); | |
428 | memcpy(hw->buf_emul + hw->pos_emul, buf, to_copy); | |
85571bc7 | 429 | |
7a4ede00 | 430 | hw->pos_emul = (hw->pos_emul + to_copy) % hw->size_emul; |
3ba4066d KZ |
431 | buf += to_copy; |
432 | len -= to_copy; | |
1d14ffa9 | 433 | } |
3ba4066d KZ |
434 | return total_len; |
435 | } | |
1d14ffa9 | 436 | |
3ba4066d KZ |
437 | pos = 0; |
438 | while (len) { | |
439 | ssize_t bytes_written; | |
440 | void *pcm = advance(buf, pos); | |
8ead62cf | 441 | |
3ba4066d KZ |
442 | bytes_written = write(oss->fd, pcm, len); |
443 | if (bytes_written < 0) { | |
444 | if (errno != EAGAIN) { | |
445 | oss_logerr(errno, "failed to write %zu bytes\n", | |
446 | len); | |
447 | } | |
448 | return pos; | |
85571bc7 FB |
449 | } |
450 | ||
3ba4066d KZ |
451 | pos += bytes_written; |
452 | if (bytes_written < len) { | |
453 | break; | |
1d14ffa9 | 454 | } |
3ba4066d | 455 | len -= bytes_written; |
85571bc7 | 456 | } |
3ba4066d | 457 | return pos; |
85571bc7 FB |
458 | } |
459 | ||
1d14ffa9 | 460 | static void oss_fini_out (HWVoiceOut *hw) |
85571bc7 FB |
461 | { |
462 | int err; | |
1d14ffa9 | 463 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
85571bc7 | 464 | |
1d14ffa9 FB |
465 | ldebug ("oss_fini\n"); |
466 | oss_anal_close (&oss->fd); | |
85571bc7 | 467 | |
3ba4066d KZ |
468 | if (oss->mmapped && hw->buf_emul) { |
469 | err = munmap(hw->buf_emul, hw->size_emul); | |
470 | if (err) { | |
471 | oss_logerr(errno, "Failed to unmap buffer %p, size %zu\n", | |
472 | hw->buf_emul, hw->size_emul); | |
85571bc7 | 473 | } |
3ba4066d | 474 | hw->buf_emul = NULL; |
85571bc7 FB |
475 | } |
476 | } | |
477 | ||
5706db1d KZ |
478 | static int oss_init_out(HWVoiceOut *hw, struct audsettings *as, |
479 | void *drv_opaque) | |
85571bc7 | 480 | { |
1d14ffa9 | 481 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
85571bc7 | 482 | struct oss_params req, obt; |
1d14ffa9 FB |
483 | int endianness; |
484 | int err; | |
485 | int fd; | |
85bc5852 | 486 | AudioFormat effective_fmt; |
1ea879e5 | 487 | struct audsettings obt_as; |
baf6c7f4 KZ |
488 | Audiodev *dev = drv_opaque; |
489 | AudiodevOssOptions *oopts = &dev->u.oss; | |
85571bc7 | 490 | |
571ec3d6 FB |
491 | oss->fd = -1; |
492 | ||
b6c9c940 | 493 | req.fmt = aud_to_ossfmt (as->fmt, as->endianness); |
c0fe3827 FB |
494 | req.freq = as->freq; |
495 | req.nchannels = as->nchannels; | |
85571bc7 | 496 | |
baf6c7f4 | 497 | if (oss_open(0, &req, as, &obt, &fd, dev)) { |
85571bc7 | 498 | return -1; |
1d14ffa9 | 499 | } |
85571bc7 | 500 | |
1d14ffa9 FB |
501 | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
502 | if (err) { | |
503 | oss_anal_close (&fd); | |
504 | return -1; | |
505 | } | |
85571bc7 | 506 | |
c0fe3827 FB |
507 | obt_as.freq = obt.freq; |
508 | obt_as.nchannels = obt.nchannels; | |
509 | obt_as.fmt = effective_fmt; | |
d929eba5 | 510 | obt_as.endianness = endianness; |
c0fe3827 | 511 | |
d929eba5 | 512 | audio_pcm_init_info (&hw->info, &obt_as); |
85571bc7 FB |
513 | oss->nfrags = obt.nfrags; |
514 | oss->fragsize = obt.fragsize; | |
c0fe3827 | 515 | |
2b9cce8c | 516 | if (obt.nfrags * obt.fragsize % hw->info.bytes_per_frame) { |
c0fe3827 | 517 | dolog ("warning: Misaligned DAC buffer, size %d, alignment %d\n", |
2b9cce8c | 518 | obt.nfrags * obt.fragsize, hw->info.bytes_per_frame); |
c0fe3827 FB |
519 | } |
520 | ||
2b9cce8c | 521 | hw->samples = (obt.nfrags * obt.fragsize) / hw->info.bytes_per_frame; |
85571bc7 FB |
522 | |
523 | oss->mmapped = 0; | |
baf6c7f4 | 524 | if (oopts->has_try_mmap && oopts->try_mmap) { |
2b9cce8c | 525 | hw->size_emul = hw->samples * hw->info.bytes_per_frame; |
3ba4066d | 526 | hw->buf_emul = mmap( |
660f11be | 527 | NULL, |
3ba4066d | 528 | hw->size_emul, |
c0fe3827 FB |
529 | PROT_READ | PROT_WRITE, |
530 | MAP_SHARED, | |
531 | fd, | |
532 | 0 | |
533 | ); | |
3ba4066d | 534 | if (hw->buf_emul == MAP_FAILED) { |
7520462b | 535 | oss_logerr(errno, "Failed to map %zu bytes of DAC\n", |
3ba4066d KZ |
536 | hw->size_emul); |
537 | hw->buf_emul = NULL; | |
538 | } else { | |
85571bc7 FB |
539 | int err; |
540 | int trig = 0; | |
1d14ffa9 FB |
541 | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
542 | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n"); | |
6c6886bd | 543 | } else { |
44a095a7 | 544 | trig = PCM_ENABLE_OUTPUT; |
1d14ffa9 FB |
545 | if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { |
546 | oss_logerr ( | |
547 | errno, | |
548 | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n" | |
549 | ); | |
6c6886bd | 550 | } else { |
44a095a7 FB |
551 | oss->mmapped = 1; |
552 | } | |
85571bc7 | 553 | } |
85571bc7 | 554 | |
44a095a7 | 555 | if (!oss->mmapped) { |
3ba4066d | 556 | err = munmap(hw->buf_emul, hw->size_emul); |
44a095a7 | 557 | if (err) { |
7520462b | 558 | oss_logerr(errno, "Failed to unmap buffer %p size %zu\n", |
3ba4066d | 559 | hw->buf_emul, hw->size_emul); |
44a095a7 | 560 | } |
3ba4066d | 561 | hw->buf_emul = NULL; |
85571bc7 FB |
562 | } |
563 | } | |
564 | } | |
565 | ||
1d14ffa9 | 566 | oss->fd = fd; |
baf6c7f4 | 567 | oss->dev = dev; |
85571bc7 FB |
568 | return 0; |
569 | } | |
570 | ||
571a8c52 | 571 | static void oss_enable_out(HWVoiceOut *hw, bool enable) |
85571bc7 FB |
572 | { |
573 | int trig; | |
1d14ffa9 | 574 | OSSVoiceOut *oss = (OSSVoiceOut *) hw; |
baf6c7f4 | 575 | AudiodevOssPerDirectionOptions *opdo = oss->dev->u.oss.out; |
85571bc7 | 576 | |
571a8c52 | 577 | if (enable) { |
f03cd068 | 578 | hw->poll_mode = opdo->try_poll; |
dd8a5649 | 579 | |
571a8c52 | 580 | ldebug("enabling voice\n"); |
f03cd068 | 581 | if (hw->poll_mode) { |
571a8c52 | 582 | oss_poll_out(hw); |
571a8c52 | 583 | } |
301901b5 | 584 | |
571a8c52 KZ |
585 | if (!oss->mmapped) { |
586 | return; | |
85571bc7 | 587 | } |
85571bc7 | 588 | |
3e0c1bba | 589 | audio_pcm_info_clear_buf(&hw->info, hw->buf_emul, hw->samples); |
571a8c52 KZ |
590 | trig = PCM_ENABLE_OUTPUT; |
591 | if (ioctl(oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { | |
592 | oss_logerr(errno, | |
593 | "SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"); | |
594 | return; | |
595 | } | |
596 | } else { | |
dd8a5649 | 597 | if (hw->poll_mode) { |
598 | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); | |
599 | hw->poll_mode = 0; | |
600 | } | |
601 | ||
602 | if (!oss->mmapped) { | |
571a8c52 | 603 | return; |
dd8a5649 | 604 | } |
605 | ||
85571bc7 FB |
606 | ldebug ("disabling voice\n"); |
607 | trig = 0; | |
608 | if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) { | |
1d14ffa9 | 609 | oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n"); |
571a8c52 | 610 | return; |
85571bc7 | 611 | } |
85571bc7 | 612 | } |
85571bc7 FB |
613 | } |
614 | ||
5706db1d | 615 | static int oss_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) |
1d14ffa9 FB |
616 | { |
617 | OSSVoiceIn *oss = (OSSVoiceIn *) hw; | |
618 | struct oss_params req, obt; | |
619 | int endianness; | |
620 | int err; | |
621 | int fd; | |
85bc5852 | 622 | AudioFormat effective_fmt; |
1ea879e5 | 623 | struct audsettings obt_as; |
baf6c7f4 | 624 | Audiodev *dev = drv_opaque; |
1d14ffa9 | 625 | |
571ec3d6 FB |
626 | oss->fd = -1; |
627 | ||
b6c9c940 | 628 | req.fmt = aud_to_ossfmt (as->fmt, as->endianness); |
c0fe3827 FB |
629 | req.freq = as->freq; |
630 | req.nchannels = as->nchannels; | |
baf6c7f4 | 631 | if (oss_open(1, &req, as, &obt, &fd, dev)) { |
1d14ffa9 FB |
632 | return -1; |
633 | } | |
634 | ||
635 | err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); | |
636 | if (err) { | |
637 | oss_anal_close (&fd); | |
638 | return -1; | |
639 | } | |
640 | ||
c0fe3827 FB |
641 | obt_as.freq = obt.freq; |
642 | obt_as.nchannels = obt.nchannels; | |
643 | obt_as.fmt = effective_fmt; | |
d929eba5 | 644 | obt_as.endianness = endianness; |
c0fe3827 | 645 | |
d929eba5 | 646 | audio_pcm_init_info (&hw->info, &obt_as); |
1d14ffa9 FB |
647 | oss->nfrags = obt.nfrags; |
648 | oss->fragsize = obt.fragsize; | |
c0fe3827 | 649 | |
2b9cce8c | 650 | if (obt.nfrags * obt.fragsize % hw->info.bytes_per_frame) { |
c0fe3827 | 651 | dolog ("warning: Misaligned ADC buffer, size %d, alignment %d\n", |
2b9cce8c | 652 | obt.nfrags * obt.fragsize, hw->info.bytes_per_frame); |
c0fe3827 FB |
653 | } |
654 | ||
2b9cce8c | 655 | hw->samples = (obt.nfrags * obt.fragsize) / hw->info.bytes_per_frame; |
1d14ffa9 FB |
656 | |
657 | oss->fd = fd; | |
baf6c7f4 | 658 | oss->dev = dev; |
1d14ffa9 FB |
659 | return 0; |
660 | } | |
661 | ||
662 | static void oss_fini_in (HWVoiceIn *hw) | |
663 | { | |
664 | OSSVoiceIn *oss = (OSSVoiceIn *) hw; | |
665 | ||
666 | oss_anal_close (&oss->fd); | |
1d14ffa9 FB |
667 | } |
668 | ||
3ba4066d | 669 | static size_t oss_read(HWVoiceIn *hw, void *buf, size_t len) |
1d14ffa9 FB |
670 | { |
671 | OSSVoiceIn *oss = (OSSVoiceIn *) hw; | |
3ba4066d | 672 | size_t pos = 0; |
1d14ffa9 | 673 | |
3ba4066d | 674 | while (len) { |
1d14ffa9 FB |
675 | ssize_t nread; |
676 | ||
3ba4066d KZ |
677 | void *dst = advance(buf, pos); |
678 | nread = read(oss->fd, dst, len); | |
1d14ffa9 | 679 | |
3ba4066d KZ |
680 | if (nread == -1) { |
681 | switch (errno) { | |
682 | case EINTR: | |
683 | case EAGAIN: | |
684 | break; | |
685 | default: | |
686 | oss_logerr(errno, "Failed to read %zu bytes of audio (to %p)\n", | |
687 | len, dst); | |
1d14ffa9 FB |
688 | break; |
689 | } | |
4f50d4a4 | 690 | break; |
1d14ffa9 | 691 | } |
3ba4066d KZ |
692 | |
693 | pos += nread; | |
694 | len -= nread; | |
1d14ffa9 FB |
695 | } |
696 | ||
3ba4066d | 697 | return pos; |
1d14ffa9 FB |
698 | } |
699 | ||
571a8c52 | 700 | static void oss_enable_in(HWVoiceIn *hw, bool enable) |
1d14ffa9 | 701 | { |
dd8a5649 | 702 | OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
baf6c7f4 | 703 | AudiodevOssPerDirectionOptions *opdo = oss->dev->u.oss.out; |
dd8a5649 | 704 | |
571a8c52 | 705 | if (enable) { |
f03cd068 | 706 | hw->poll_mode = opdo->try_poll; |
a628b869 | 707 | |
f03cd068 | 708 | if (hw->poll_mode) { |
571a8c52 | 709 | oss_poll_in(hw); |
dd8a5649 | 710 | } |
571a8c52 | 711 | } else { |
dd8a5649 | 712 | if (hw->poll_mode) { |
dd8a5649 | 713 | qemu_set_fd_handler (oss->fd, NULL, NULL, NULL); |
f03cd068 | 714 | hw->poll_mode = 0; |
dd8a5649 | 715 | } |
dd8a5649 | 716 | } |
1d14ffa9 FB |
717 | } |
718 | ||
baf6c7f4 KZ |
719 | static void oss_init_per_direction(AudiodevOssPerDirectionOptions *opdo) |
720 | { | |
721 | if (!opdo->has_try_poll) { | |
722 | opdo->try_poll = true; | |
723 | opdo->has_try_poll = true; | |
724 | } | |
725 | } | |
4045a85a | 726 | |
71830221 | 727 | static void *oss_audio_init(Audiodev *dev) |
85571bc7 | 728 | { |
baf6c7f4 KZ |
729 | AudiodevOssOptions *oopts; |
730 | assert(dev->driver == AUDIODEV_DRIVER_OSS); | |
731 | ||
732 | oopts = &dev->u.oss; | |
733 | oss_init_per_direction(oopts->in); | |
734 | oss_init_per_direction(oopts->out); | |
4045a85a | 735 | |
baf6c7f4 KZ |
736 | if (access(oopts->in->has_dev ? oopts->in->dev : "/dev/dsp", |
737 | R_OK | W_OK) < 0 || | |
738 | access(oopts->out->has_dev ? oopts->out->dev : "/dev/dsp", | |
739 | R_OK | W_OK) < 0) { | |
73204cff GH |
740 | return NULL; |
741 | } | |
baf6c7f4 | 742 | return dev; |
85571bc7 FB |
743 | } |
744 | ||
745 | static void oss_audio_fini (void *opaque) | |
746 | { | |
747 | } | |
748 | ||
35f4b58c | 749 | static struct audio_pcm_ops oss_pcm_ops = { |
1dd3e4d1 JQ |
750 | .init_out = oss_init_out, |
751 | .fini_out = oss_fini_out, | |
3ba4066d | 752 | .write = oss_write, |
fdc8c5f4 | 753 | .run_buffer_out = oss_run_buffer_out, |
3ba4066d KZ |
754 | .get_buffer_out = oss_get_buffer_out, |
755 | .put_buffer_out = oss_put_buffer_out, | |
571a8c52 | 756 | .enable_out = oss_enable_out, |
1dd3e4d1 JQ |
757 | |
758 | .init_in = oss_init_in, | |
759 | .fini_in = oss_fini_in, | |
3ba4066d | 760 | .read = oss_read, |
a2893c83 | 761 | .run_buffer_in = audio_generic_run_buffer_in, |
571a8c52 | 762 | .enable_in = oss_enable_in |
85571bc7 FB |
763 | }; |
764 | ||
d3893a39 | 765 | static struct audio_driver oss_audio_driver = { |
bee37f32 JQ |
766 | .name = "oss", |
767 | .descr = "OSS http://www.opensound.com", | |
bee37f32 JQ |
768 | .init = oss_audio_init, |
769 | .fini = oss_audio_fini, | |
770 | .pcm_ops = &oss_pcm_ops, | |
926de754 | 771 | .can_be_default = 1, |
bee37f32 JQ |
772 | .max_voices_out = INT_MAX, |
773 | .max_voices_in = INT_MAX, | |
774 | .voice_size_out = sizeof (OSSVoiceOut), | |
775 | .voice_size_in = sizeof (OSSVoiceIn) | |
85571bc7 | 776 | }; |
d3893a39 GH |
777 | |
778 | static void register_audio_oss(void) | |
779 | { | |
780 | audio_driver_register(&oss_audio_driver); | |
781 | } | |
782 | type_init(register_audio_oss); |