Revision 1d14ffa9 audio/ossaudio.c
| b/audio/ossaudio.c | ||
|---|---|---|
| 1 | 1 |
/* |
| 2 |
* QEMU OSS audio output driver
|
|
| 3 |
*
|
|
| 4 |
* Copyright (c) 2003-2004 Vassili Karpov (malc)
|
|
| 5 |
*
|
|
| 2 |
* QEMU OSS audio driver |
|
| 3 |
* |
|
| 4 |
* Copyright (c) 2003-2005 Vassili Karpov (malc)
|
|
| 5 |
* |
|
| 6 | 6 |
* Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | 7 |
* of this software and associated documentation files (the "Software"), to deal |
| 8 | 8 |
* in the Software without restriction, including without limitation the rights |
| ... | ... | |
| 25 | 25 |
#include <sys/types.h> |
| 26 | 26 |
#include <sys/ioctl.h> |
| 27 | 27 |
#include <sys/soundcard.h> |
| 28 |
#include <assert.h> |
|
| 29 | 28 |
#include "vl.h" |
| 30 | 29 |
|
| 31 |
#include "audio/audio_int.h" |
|
| 30 |
#define AUDIO_CAP "oss" |
|
| 31 |
#include "audio_int.h" |
|
| 32 | 32 |
|
| 33 |
typedef struct OSSVoice {
|
|
| 34 |
HWVoice hw; |
|
| 33 |
typedef struct OSSVoiceOut {
|
|
| 34 |
HWVoiceOut hw;
|
|
| 35 | 35 |
void *pcm_buf; |
| 36 | 36 |
int fd; |
| 37 | 37 |
int nfrags; |
| 38 | 38 |
int fragsize; |
| 39 | 39 |
int mmapped; |
| 40 | 40 |
int old_optr; |
| 41 |
} OSSVoice; |
|
| 42 |
|
|
| 43 |
#define dolog(...) AUD_log ("oss", __VA_ARGS__)
|
|
| 44 |
#ifdef DEBUG |
|
| 45 |
#define ldebug(...) dolog (__VA_ARGS__) |
|
| 46 |
#else |
|
| 47 |
#define ldebug(...) |
|
| 48 |
#endif |
|
| 41 |
} OSSVoiceOut; |
|
| 49 | 42 |
|
| 50 |
#define QC_OSS_FRAGSIZE "QEMU_OSS_FRAGSIZE" |
|
| 51 |
#define QC_OSS_NFRAGS "QEMU_OSS_NFRAGS" |
|
| 52 |
#define QC_OSS_MMAP "QEMU_OSS_MMAP" |
|
| 53 |
#define QC_OSS_DEV "QEMU_OSS_DEV" |
|
| 54 |
|
|
| 55 |
#define errstr() strerror (errno) |
|
| 43 |
typedef struct OSSVoiceIn {
|
|
| 44 |
HWVoiceIn hw; |
|
| 45 |
void *pcm_buf; |
|
| 46 |
int fd; |
|
| 47 |
int nfrags; |
|
| 48 |
int fragsize; |
|
| 49 |
int old_optr; |
|
| 50 |
} OSSVoiceIn; |
|
| 56 | 51 |
|
| 57 | 52 |
static struct {
|
| 58 | 53 |
int try_mmap; |
| 59 | 54 |
int nfrags; |
| 60 | 55 |
int fragsize; |
| 61 |
const char *dspname; |
|
| 56 |
const char *devpath_out; |
|
| 57 |
const char *devpath_in; |
|
| 62 | 58 |
} conf = {
|
| 63 | 59 |
.try_mmap = 0, |
| 64 | 60 |
.nfrags = 4, |
| 65 | 61 |
.fragsize = 4096, |
| 66 |
.dspname = "/dev/dsp" |
|
| 62 |
.devpath_out = "/dev/dsp", |
|
| 63 |
.devpath_in = "/dev/dsp" |
|
| 67 | 64 |
}; |
| 68 | 65 |
|
| 69 | 66 |
struct oss_params {
|
| ... | ... | |
| 74 | 71 |
int fragsize; |
| 75 | 72 |
}; |
| 76 | 73 |
|
| 77 |
static int oss_hw_write (SWVoice *sw, void *buf, int len)
|
|
| 74 |
static void GCC_FMT_ATTR (2, 3) oss_logerr (int err, const char *fmt, ...)
|
|
| 78 | 75 |
{
|
| 79 |
return pcm_hw_write (sw, buf, len); |
|
| 76 |
va_list ap; |
|
| 77 |
|
|
| 78 |
AUD_vlog (AUDIO_CAP, fmt, ap); |
|
| 79 |
|
|
| 80 |
va_start (ap, fmt); |
|
| 81 |
AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err)); |
|
| 82 |
va_end (ap); |
|
| 80 | 83 |
} |
| 81 | 84 |
|
| 82 |
static int AUD_to_ossfmt (audfmt_e fmt) |
|
| 85 |
static void GCC_FMT_ATTR (3, 4) oss_logerr2 ( |
|
| 86 |
int err, |
|
| 87 |
const char *typ, |
|
| 88 |
const char *fmt, |
|
| 89 |
... |
|
| 90 |
) |
|
| 91 |
{
|
|
| 92 |
va_list ap; |
|
| 93 |
|
|
| 94 |
AUD_log (AUDIO_CAP, "Can not initialize %s\n", typ); |
|
| 95 |
|
|
| 96 |
va_start (ap, fmt); |
|
| 97 |
AUD_vlog (AUDIO_CAP, fmt, ap); |
|
| 98 |
va_end (ap); |
|
| 99 |
|
|
| 100 |
AUD_log (AUDIO_CAP, "Reason: %s\n", strerror (err)); |
|
| 101 |
} |
|
| 102 |
|
|
| 103 |
static void oss_anal_close (int *fdp) |
|
| 104 |
{
|
|
| 105 |
int err = close (*fdp); |
|
| 106 |
if (err) {
|
|
| 107 |
oss_logerr (errno, "Failed to close file(fd=%d)\n", *fdp); |
|
| 108 |
} |
|
| 109 |
*fdp = -1; |
|
| 110 |
} |
|
| 111 |
|
|
| 112 |
static int oss_write (SWVoiceOut *sw, void *buf, int len) |
|
| 113 |
{
|
|
| 114 |
return audio_pcm_sw_write (sw, buf, len); |
|
| 115 |
} |
|
| 116 |
|
|
| 117 |
static int aud_to_ossfmt (audfmt_e fmt) |
|
| 83 | 118 |
{
|
| 84 | 119 |
switch (fmt) {
|
| 85 |
case AUD_FMT_S8: return AFMT_S8; |
|
| 86 |
case AUD_FMT_U8: return AFMT_U8; |
|
| 87 |
case AUD_FMT_S16: return AFMT_S16_LE; |
|
| 88 |
case AUD_FMT_U16: return AFMT_U16_LE; |
|
| 120 |
case AUD_FMT_S8: |
|
| 121 |
return AFMT_S8; |
|
| 122 |
|
|
| 123 |
case AUD_FMT_U8: |
|
| 124 |
return AFMT_U8; |
|
| 125 |
|
|
| 126 |
case AUD_FMT_S16: |
|
| 127 |
return AFMT_S16_LE; |
|
| 128 |
|
|
| 129 |
case AUD_FMT_U16: |
|
| 130 |
return AFMT_U16_LE; |
|
| 131 |
|
|
| 89 | 132 |
default: |
| 90 |
dolog ("Internal logic error: Bad audio format %d\nAborting\n", fmt);
|
|
| 91 |
exit (EXIT_FAILURE); |
|
| 133 |
dolog ("Internal logic error: Bad audio format %d\n", fmt);
|
|
| 134 |
#ifdef DEBUG_AUDIO |
|
| 135 |
abort (); |
|
| 136 |
#endif |
|
| 137 |
return AFMT_U8; |
|
| 92 | 138 |
} |
| 93 | 139 |
} |
| 94 | 140 |
|
| 95 |
static int oss_to_audfmt (int fmt)
|
|
| 141 |
static int oss_to_audfmt (int ossfmt, audfmt_e *fmt, int *endianness)
|
|
| 96 | 142 |
{
|
| 97 |
switch (fmt) {
|
|
| 98 |
case AFMT_S8: return AUD_FMT_S8; |
|
| 99 |
case AFMT_U8: return AUD_FMT_U8; |
|
| 100 |
case AFMT_S16_LE: return AUD_FMT_S16; |
|
| 101 |
case AFMT_U16_LE: return AUD_FMT_U16; |
|
| 143 |
switch (ossfmt) {
|
|
| 144 |
case AFMT_S8: |
|
| 145 |
*endianness =0; |
|
| 146 |
*fmt = AUD_FMT_S8; |
|
| 147 |
break; |
|
| 148 |
|
|
| 149 |
case AFMT_U8: |
|
| 150 |
*endianness = 0; |
|
| 151 |
*fmt = AUD_FMT_U8; |
|
| 152 |
break; |
|
| 153 |
|
|
| 154 |
case AFMT_S16_LE: |
|
| 155 |
*endianness = 0; |
|
| 156 |
*fmt = AUD_FMT_S16; |
|
| 157 |
break; |
|
| 158 |
|
|
| 159 |
case AFMT_U16_LE: |
|
| 160 |
*endianness = 0; |
|
| 161 |
*fmt = AUD_FMT_U16; |
|
| 162 |
break; |
|
| 163 |
|
|
| 164 |
case AFMT_S16_BE: |
|
| 165 |
*endianness = 1; |
|
| 166 |
*fmt = AUD_FMT_S16; |
|
| 167 |
break; |
|
| 168 |
|
|
| 169 |
case AFMT_U16_BE: |
|
| 170 |
*endianness = 1; |
|
| 171 |
*fmt = AUD_FMT_U16; |
|
| 172 |
break; |
|
| 173 |
|
|
| 102 | 174 |
default: |
| 103 |
dolog ("Internal logic error: Unrecognized OSS audio format %d\n"
|
|
| 104 |
"Aborting\n", |
|
| 105 |
fmt); |
|
| 106 |
exit (EXIT_FAILURE); |
|
| 175 |
dolog ("Unrecognized audio format %d\n", ossfmt);
|
|
| 176 |
return -1; |
|
| 107 | 177 |
} |
| 178 |
|
|
| 179 |
return 0; |
|
| 108 | 180 |
} |
| 109 | 181 |
|
| 110 |
#ifdef DEBUG_PCM
|
|
| 111 |
static void oss_dump_pcm_info (struct oss_params *req, struct oss_params *obt)
|
|
| 182 |
#ifdef DEBUG_MISMATCHES
|
|
| 183 |
static void oss_dump_info (struct oss_params *req, struct oss_params *obt) |
|
| 112 | 184 |
{
|
| 113 | 185 |
dolog ("parameter | requested value | obtained value\n");
|
| 114 | 186 |
dolog ("format | %10d | %10d\n", req->fmt, obt->fmt);
|
| 115 |
dolog ("channels | %10d | %10d\n", req->nchannels, obt->nchannels);
|
|
| 187 |
dolog ("channels | %10d | %10d\n",
|
|
| 188 |
req->nchannels, obt->nchannels); |
|
| 116 | 189 |
dolog ("frequency | %10d | %10d\n", req->freq, obt->freq);
|
| 117 | 190 |
dolog ("nfrags | %10d | %10d\n", req->nfrags, obt->nfrags);
|
| 118 |
dolog ("fragsize | %10d | %10d\n", req->fragsize, obt->fragsize);
|
|
| 191 |
dolog ("fragsize | %10d | %10d\n",
|
|
| 192 |
req->fragsize, obt->fragsize); |
|
| 119 | 193 |
} |
| 120 | 194 |
#endif |
| 121 | 195 |
|
| 122 |
static int oss_open (struct oss_params *req, struct oss_params *obt, int *pfd) |
|
| 196 |
static int oss_open (int in, struct oss_params *req, |
|
| 197 |
struct oss_params *obt, int *pfd) |
|
| 123 | 198 |
{
|
| 124 | 199 |
int fd; |
| 125 | 200 |
int mmmmssss; |
| 126 | 201 |
audio_buf_info abinfo; |
| 127 | 202 |
int fmt, freq, nchannels; |
| 128 |
const char *dspname = conf.dspname; |
|
| 203 |
const char *dspname = in ? conf.devpath_in : conf.devpath_out; |
|
| 204 |
const char *typ = in ? "ADC" : "DAC"; |
|
| 129 | 205 |
|
| 130 |
fd = open (dspname, O_WRONLY | O_NONBLOCK);
|
|
| 206 |
fd = open (dspname, (in ? O_RDONLY : O_WRONLY) | O_NONBLOCK);
|
|
| 131 | 207 |
if (-1 == fd) {
|
| 132 |
dolog ("Could not initialize audio hardware. Failed to open `%s':\n"
|
|
| 133 |
"Reason:%s\n", |
|
| 134 |
dspname, |
|
| 135 |
errstr ()); |
|
| 208 |
oss_logerr2 (errno, typ, "Failed to open `%s'\n", dspname); |
|
| 136 | 209 |
return -1; |
| 137 | 210 |
} |
| 138 | 211 |
|
| ... | ... | |
| 141 | 214 |
fmt = req->fmt; |
| 142 | 215 |
|
| 143 | 216 |
if (ioctl (fd, SNDCTL_DSP_SAMPLESIZE, &fmt)) {
|
| 144 |
dolog ("Could not initialize audio hardware\n"
|
|
| 145 |
"Failed to set sample size\n" |
|
| 146 |
"Reason: %s\n", |
|
| 147 |
errstr ()); |
|
| 217 |
oss_logerr2 (errno, typ, "Failed to set sample size %d\n", req->fmt); |
|
| 148 | 218 |
goto err; |
| 149 | 219 |
} |
| 150 | 220 |
|
| 151 | 221 |
if (ioctl (fd, SNDCTL_DSP_CHANNELS, &nchannels)) {
|
| 152 |
dolog ("Could not initialize audio hardware\n"
|
|
| 153 |
"Failed to set number of channels\n" |
|
| 154 |
"Reason: %s\n", |
|
| 155 |
errstr ()); |
|
| 222 |
oss_logerr2 (errno, typ, "Failed to set number of channels %d\n", |
|
| 223 |
req->nchannels); |
|
| 156 | 224 |
goto err; |
| 157 | 225 |
} |
| 158 | 226 |
|
| 159 | 227 |
if (ioctl (fd, SNDCTL_DSP_SPEED, &freq)) {
|
| 160 |
dolog ("Could not initialize audio hardware\n"
|
|
| 161 |
"Failed to set frequency\n" |
|
| 162 |
"Reason: %s\n", |
|
| 163 |
errstr ()); |
|
| 228 |
oss_logerr2 (errno, typ, "Failed to set frequency %d\n", req->freq); |
|
| 164 | 229 |
goto err; |
| 165 | 230 |
} |
| 166 | 231 |
|
| 167 | 232 |
if (ioctl (fd, SNDCTL_DSP_NONBLOCK)) {
|
| 168 |
dolog ("Could not initialize audio hardware\n"
|
|
| 169 |
"Failed to set non-blocking mode\n" |
|
| 170 |
"Reason: %s\n", |
|
| 171 |
errstr ()); |
|
| 233 |
oss_logerr2 (errno, typ, "Failed to set non-blocking mode\n"); |
|
| 172 | 234 |
goto err; |
| 173 | 235 |
} |
| 174 | 236 |
|
| 175 | 237 |
mmmmssss = (req->nfrags << 16) | lsbindex (req->fragsize); |
| 176 | 238 |
if (ioctl (fd, SNDCTL_DSP_SETFRAGMENT, &mmmmssss)) {
|
| 177 |
dolog ("Could not initialize audio hardware\n"
|
|
| 178 |
"Failed to set buffer length (%d, %d)\n" |
|
| 179 |
"Reason:%s\n", |
|
| 180 |
conf.nfrags, conf.fragsize, |
|
| 181 |
errstr ()); |
|
| 239 |
oss_logerr2 (errno, typ, "Failed to set buffer length (%d, %d)\n", |
|
| 240 |
req->nfrags, req->fragsize); |
|
| 182 | 241 |
goto err; |
| 183 | 242 |
} |
| 184 | 243 |
|
| 185 |
if (ioctl (fd, SNDCTL_DSP_GETOSPACE, &abinfo)) {
|
|
| 186 |
dolog ("Could not initialize audio hardware\n"
|
|
| 187 |
"Failed to get buffer length\n" |
|
| 188 |
"Reason:%s\n", |
|
| 189 |
errstr ()); |
|
| 244 |
if (ioctl (fd, in ? SNDCTL_DSP_GETISPACE : SNDCTL_DSP_GETOSPACE, &abinfo)) {
|
|
| 245 |
oss_logerr2 (errno, typ, "Failed to get buffer length\n"); |
|
| 190 | 246 |
goto err; |
| 191 | 247 |
} |
| 192 | 248 |
|
| ... | ... | |
| 202 | 258 |
(req->freq != obt->freq) || |
| 203 | 259 |
(req->fragsize != obt->fragsize) || |
| 204 | 260 |
(req->nfrags != obt->nfrags)) {
|
| 205 |
#ifdef DEBUG_PCM
|
|
| 261 |
#ifdef DEBUG_MISMATCHES
|
|
| 206 | 262 |
dolog ("Audio parameters mismatch\n");
|
| 207 |
oss_dump_pcm_info (req, obt);
|
|
| 263 |
oss_dump_info (req, obt); |
|
| 208 | 264 |
#endif |
| 209 | 265 |
} |
| 210 | 266 |
|
| 211 |
#ifdef DEBUG_PCM
|
|
| 212 |
oss_dump_pcm_info (req, obt);
|
|
| 267 |
#ifdef DEBUG |
|
| 268 |
oss_dump_info (req, obt); |
|
| 213 | 269 |
#endif |
| 214 | 270 |
return 0; |
| 215 | 271 |
|
| 216 |
err: |
|
| 217 |
close (fd);
|
|
| 272 |
err:
|
|
| 273 |
oss_anal_close (&fd);
|
|
| 218 | 274 |
return -1; |
| 219 | 275 |
} |
| 220 | 276 |
|
| 221 |
static void oss_hw_run (HWVoice *hw)
|
|
| 277 |
static int oss_run_out (HWVoiceOut *hw)
|
|
| 222 | 278 |
{
|
| 223 |
OSSVoice *oss = (OSSVoice *) hw;
|
|
| 279 |
OSSVoiceOut *oss = (OSSVoiceOut *) hw;
|
|
| 224 | 280 |
int err, rpos, live, decr; |
| 225 | 281 |
int samples; |
| 226 | 282 |
uint8_t *dst; |
| ... | ... | |
| 228 | 284 |
struct audio_buf_info abinfo; |
| 229 | 285 |
struct count_info cntinfo; |
| 230 | 286 |
|
| 231 |
live = pcm_hw_get_live (hw); |
|
| 232 |
if (live <= 0) |
|
| 233 |
return; |
|
| 287 |
live = audio_pcm_hw_get_live_out (hw); |
|
| 288 |
if (!live) {
|
|
| 289 |
return 0; |
|
| 290 |
} |
|
| 234 | 291 |
|
| 235 | 292 |
if (oss->mmapped) {
|
| 236 | 293 |
int bytes; |
| 237 | 294 |
|
| 238 | 295 |
err = ioctl (oss->fd, SNDCTL_DSP_GETOPTR, &cntinfo); |
| 239 | 296 |
if (err < 0) {
|
| 240 |
dolog ("SNDCTL_DSP_GETOPTR failed\nReason: %s\n", errstr ());
|
|
| 241 |
return; |
|
| 297 |
oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n");
|
|
| 298 |
return 0;
|
|
| 242 | 299 |
} |
| 243 | 300 |
|
| 244 | 301 |
if (cntinfo.ptr == oss->old_optr) {
|
| 245 |
if (abs (hw->samples - live) < 64) |
|
| 246 |
dolog ("overrun\n");
|
|
| 247 |
return; |
|
| 302 |
if (abs (hw->samples - live) < 64) {
|
|
| 303 |
dolog ("warning: overrun\n");
|
|
| 304 |
} |
|
| 305 |
return 0; |
|
| 248 | 306 |
} |
| 249 | 307 |
|
| 250 | 308 |
if (cntinfo.ptr > oss->old_optr) {
|
| ... | ... | |
| 254 | 312 |
bytes = hw->bufsize + cntinfo.ptr - oss->old_optr; |
| 255 | 313 |
} |
| 256 | 314 |
|
| 257 |
decr = audio_MIN (bytes >> hw->shift, live); |
|
| 315 |
decr = audio_MIN (bytes >> hw->info.shift, live);
|
|
| 258 | 316 |
} |
| 259 | 317 |
else {
|
| 260 | 318 |
err = ioctl (oss->fd, SNDCTL_DSP_GETOSPACE, &abinfo); |
| 261 | 319 |
if (err < 0) {
|
| 262 |
dolog ("SNDCTL_DSP_GETOSPACE failed\nReason: %s\n", errstr ());
|
|
| 263 |
return; |
|
| 320 |
oss_logerr (errno, "SNDCTL_DSP_GETOPTR failed\n"); |
|
| 321 |
return 0; |
|
| 322 |
} |
|
| 323 |
|
|
| 324 |
if (abinfo.bytes < 0 || abinfo.bytes > hw->bufsize) {
|
|
| 325 |
ldebug ("warning: invalid available size, size=%d bufsize=%d\n",
|
|
| 326 |
abinfo.bytes, hw->bufsize); |
|
| 327 |
return 0; |
|
| 264 | 328 |
} |
| 265 | 329 |
|
| 266 |
decr = audio_MIN (abinfo.bytes >> hw->shift, live); |
|
| 267 |
if (decr <= 0) |
|
| 268 |
return; |
|
| 330 |
decr = audio_MIN (abinfo.bytes >> hw->info.shift, live); |
|
| 331 |
if (!decr) {
|
|
| 332 |
return 0; |
|
| 333 |
} |
|
| 269 | 334 |
} |
| 270 | 335 |
|
| 271 | 336 |
samples = decr; |
| ... | ... | |
| 274 | 339 |
int left_till_end_samples = hw->samples - rpos; |
| 275 | 340 |
int convert_samples = audio_MIN (samples, left_till_end_samples); |
| 276 | 341 |
|
| 277 |
src = advance (hw->mix_buf, rpos * sizeof (st_sample_t));
|
|
| 278 |
dst = advance (oss->pcm_buf, rpos << hw->shift); |
|
| 342 |
src = hw->mix_buf + rpos;
|
|
| 343 |
dst = advance (oss->pcm_buf, rpos << hw->info.shift);
|
|
| 279 | 344 |
|
| 280 | 345 |
hw->clip (dst, src, convert_samples); |
| 281 | 346 |
if (!oss->mmapped) {
|
| 282 | 347 |
int written; |
| 283 | 348 |
|
| 284 |
written = write (oss->fd, dst, convert_samples << hw->shift); |
|
| 349 |
written = write (oss->fd, dst, convert_samples << hw->info.shift);
|
|
| 285 | 350 |
/* XXX: follow errno recommendations ? */ |
| 286 | 351 |
if (written == -1) {
|
| 287 |
dolog ("Failed to write audio\nReason: %s\n", errstr ());
|
|
| 352 |
oss_logerr ( |
|
| 353 |
errno, |
|
| 354 |
"Failed to write %d bytes of audio data from %p\n", |
|
| 355 |
convert_samples << hw->info.shift, |
|
| 356 |
dst |
|
| 357 |
); |
|
| 288 | 358 |
continue; |
| 289 | 359 |
} |
| 290 | 360 |
|
| 291 |
if (written != convert_samples << hw->shift) {
|
|
| 292 |
int wsamples = written >> hw->shift; |
|
| 293 |
int wbytes = wsamples << hw->shift; |
|
| 361 |
if (written != convert_samples << hw->info.shift) {
|
|
| 362 |
int wsamples = written >> hw->info.shift;
|
|
| 363 |
int wbytes = wsamples << hw->info.shift;
|
|
| 294 | 364 |
if (wbytes != written) {
|
| 295 |
dolog ("Unaligned write %d, %d\n", wbytes, written);
|
|
| 365 |
dolog ("warning: misaligned write %d (requested %d), "
|
|
| 366 |
"alignment %d\n", |
|
| 367 |
wbytes, written, hw->info.align + 1); |
|
| 296 | 368 |
} |
| 297 |
memset (src, 0, wbytes);
|
|
| 298 |
decr -= samples; |
|
| 369 |
mixeng_clear (src, wsamples);
|
|
| 370 |
decr -= wsamples;
|
|
| 299 | 371 |
rpos = (rpos + wsamples) % hw->samples; |
| 300 | 372 |
break; |
| 301 | 373 |
} |
| 302 | 374 |
} |
| 303 |
memset (src, 0, convert_samples * sizeof (st_sample_t)); |
|
| 375 |
|
|
| 376 |
mixeng_clear (src, convert_samples); |
|
| 304 | 377 |
|
| 305 | 378 |
rpos = (rpos + convert_samples) % hw->samples; |
| 306 | 379 |
samples -= convert_samples; |
| ... | ... | |
| 309 | 382 |
oss->old_optr = cntinfo.ptr; |
| 310 | 383 |
} |
| 311 | 384 |
|
| 312 |
pcm_hw_dec_live (hw, decr); |
|
| 313 | 385 |
hw->rpos = rpos; |
| 386 |
return decr; |
|
| 314 | 387 |
} |
| 315 | 388 |
|
| 316 |
static void oss_hw_fini (HWVoice *hw)
|
|
| 389 |
static void oss_fini_out (HWVoiceOut *hw)
|
|
| 317 | 390 |
{
|
| 318 | 391 |
int err; |
| 319 |
OSSVoice *oss = (OSSVoice *) hw;
|
|
| 392 |
OSSVoiceOut *oss = (OSSVoiceOut *) hw;
|
|
| 320 | 393 |
|
| 321 |
ldebug ("oss_hw_fini\n");
|
|
| 322 |
err = close (oss->fd); |
|
| 323 |
if (err) {
|
|
| 324 |
dolog ("Failed to close OSS descriptor\nReason: %s\n", errstr ());
|
|
| 325 |
} |
|
| 326 |
oss->fd = -1; |
|
| 394 |
ldebug ("oss_fini\n");
|
|
| 395 |
oss_anal_close (&oss->fd); |
|
| 327 | 396 |
|
| 328 | 397 |
if (oss->pcm_buf) {
|
| 329 | 398 |
if (oss->mmapped) {
|
| 330 | 399 |
err = munmap (oss->pcm_buf, hw->bufsize); |
| 331 | 400 |
if (err) {
|
| 332 |
dolog ("Failed to unmap OSS buffer\nReason: %s\n",
|
|
| 333 |
errstr ());
|
|
| 401 |
oss_logerr (errno, "Failed to unmap buffer %p, size %d\n",
|
|
| 402 |
oss->pcm_buf, hw->bufsize);
|
|
| 334 | 403 |
} |
| 335 | 404 |
} |
| 336 | 405 |
else {
|
| ... | ... | |
| 340 | 409 |
} |
| 341 | 410 |
} |
| 342 | 411 |
|
| 343 |
static int oss_hw_init (HWVoice *hw, int freq, int nchannels, audfmt_e fmt)
|
|
| 412 |
static int oss_init_out (HWVoiceOut *hw, int freq, int nchannels, audfmt_e fmt)
|
|
| 344 | 413 |
{
|
| 345 |
OSSVoice *oss = (OSSVoice *) hw;
|
|
| 414 |
OSSVoiceOut *oss = (OSSVoiceOut *) hw;
|
|
| 346 | 415 |
struct oss_params req, obt; |
| 416 |
int endianness; |
|
| 417 |
int err; |
|
| 418 |
int fd; |
|
| 419 |
audfmt_e effective_fmt; |
|
| 347 | 420 |
|
| 348 |
assert (!oss->fd); |
|
| 349 |
req.fmt = AUD_to_ossfmt (fmt); |
|
| 421 |
req.fmt = aud_to_ossfmt (fmt); |
|
| 350 | 422 |
req.freq = freq; |
| 351 | 423 |
req.nchannels = nchannels; |
| 352 | 424 |
req.fragsize = conf.fragsize; |
| 353 | 425 |
req.nfrags = conf.nfrags; |
| 354 | 426 |
|
| 355 |
if (oss_open (&req, &obt, &oss->fd))
|
|
| 427 |
if (oss_open (0, &req, &obt, &fd)) {
|
|
| 356 | 428 |
return -1; |
| 429 |
} |
|
| 357 | 430 |
|
| 358 |
hw->freq = obt.freq; |
|
| 359 |
hw->fmt = oss_to_audfmt (obt.fmt); |
|
| 360 |
hw->nchannels = obt.nchannels; |
|
| 431 |
err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
|
| 432 |
if (err) {
|
|
| 433 |
oss_anal_close (&fd); |
|
| 434 |
return -1; |
|
| 435 |
} |
|
| 361 | 436 |
|
| 437 |
audio_pcm_init_info ( |
|
| 438 |
&hw->info, |
|
| 439 |
obt.freq, |
|
| 440 |
obt.nchannels, |
|
| 441 |
effective_fmt, |
|
| 442 |
audio_need_to_swap_endian (endianness) |
|
| 443 |
); |
|
| 362 | 444 |
oss->nfrags = obt.nfrags; |
| 363 | 445 |
oss->fragsize = obt.fragsize; |
| 364 | 446 |
hw->bufsize = obt.nfrags * obt.fragsize; |
| ... | ... | |
| 366 | 448 |
oss->mmapped = 0; |
| 367 | 449 |
if (conf.try_mmap) {
|
| 368 | 450 |
oss->pcm_buf = mmap (0, hw->bufsize, PROT_READ | PROT_WRITE, |
| 369 |
MAP_SHARED, oss->fd, 0);
|
|
| 451 |
MAP_SHARED, fd, 0); |
|
| 370 | 452 |
if (oss->pcm_buf == MAP_FAILED) {
|
| 371 |
dolog ("Failed to mmap OSS device\nReason: %s\n",
|
|
| 372 |
errstr ());
|
|
| 453 |
oss_logerr (errno, "Failed to map %d bytes of DAC\n",
|
|
| 454 |
hw->bufsize);
|
|
| 373 | 455 |
} else {
|
| 374 | 456 |
int err; |
| 375 | 457 |
int trig = 0; |
| 376 |
if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
|
|
| 377 |
dolog ("SNDCTL_DSP_SETTRIGGER 0 failed\nReason: %s\n",
|
|
| 378 |
errstr ()); |
|
| 458 |
if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
|
|
| 459 |
oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n"); |
|
| 379 | 460 |
} |
| 380 | 461 |
else {
|
| 381 | 462 |
trig = PCM_ENABLE_OUTPUT; |
| 382 |
if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
|
|
| 383 |
dolog ("SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
|
| 384 |
"Reason: %s\n", errstr ()); |
|
| 463 |
if (ioctl (fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
|
|
| 464 |
oss_logerr ( |
|
| 465 |
errno, |
|
| 466 |
"SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n" |
|
| 467 |
); |
|
| 385 | 468 |
} |
| 386 | 469 |
else {
|
| 387 | 470 |
oss->mmapped = 1; |
| ... | ... | |
| 391 | 474 |
if (!oss->mmapped) {
|
| 392 | 475 |
err = munmap (oss->pcm_buf, hw->bufsize); |
| 393 | 476 |
if (err) {
|
| 394 |
dolog ("Failed to unmap OSS device\nReason: %s\n",
|
|
| 395 |
errstr ());
|
|
| 477 |
oss_logerr (errno, "Failed to unmap buffer %p size %d\n",
|
|
| 478 |
oss->pcm_buf, hw->bufsize);
|
|
| 396 | 479 |
} |
| 397 | 480 |
} |
| 398 | 481 |
} |
| ... | ... | |
| 401 | 484 |
if (!oss->mmapped) {
|
| 402 | 485 |
oss->pcm_buf = qemu_mallocz (hw->bufsize); |
| 403 | 486 |
if (!oss->pcm_buf) {
|
| 404 |
close (oss->fd); |
|
| 405 |
oss->fd = -1; |
|
| 487 |
oss_anal_close (&fd); |
|
| 406 | 488 |
return -1; |
| 407 | 489 |
} |
| 408 | 490 |
} |
| 409 | 491 |
|
| 492 |
oss->fd = fd; |
|
| 410 | 493 |
return 0; |
| 411 | 494 |
} |
| 412 | 495 |
|
| 413 |
static int oss_hw_ctl (HWVoice *hw, int cmd, ...)
|
|
| 496 |
static int oss_ctl_out (HWVoiceOut *hw, int cmd, ...)
|
|
| 414 | 497 |
{
|
| 415 | 498 |
int trig; |
| 416 |
OSSVoice *oss = (OSSVoice *) hw;
|
|
| 499 |
OSSVoiceOut *oss = (OSSVoiceOut *) hw;
|
|
| 417 | 500 |
|
| 418 |
if (!oss->mmapped) |
|
| 501 |
if (!oss->mmapped) {
|
|
| 419 | 502 |
return 0; |
| 503 |
} |
|
| 420 | 504 |
|
| 421 | 505 |
switch (cmd) {
|
| 422 | 506 |
case VOICE_ENABLE: |
| 423 | 507 |
ldebug ("enabling voice\n");
|
| 424 |
pcm_hw_clear (hw, oss->pcm_buf, hw->samples);
|
|
| 508 |
audio_pcm_info_clear_buf (&hw->info, oss->pcm_buf, hw->samples);
|
|
| 425 | 509 |
trig = PCM_ENABLE_OUTPUT; |
| 426 | 510 |
if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
|
| 427 |
dolog ("SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n"
|
|
| 428 |
"Reason: %s\n", errstr ()); |
|
| 511 |
oss_logerr ( |
|
| 512 |
errno, |
|
| 513 |
"SNDCTL_DSP_SETTRIGGER PCM_ENABLE_OUTPUT failed\n" |
|
| 514 |
); |
|
| 429 | 515 |
return -1; |
| 430 | 516 |
} |
| 431 | 517 |
break; |
| ... | ... | |
| 434 | 520 |
ldebug ("disabling voice\n");
|
| 435 | 521 |
trig = 0; |
| 436 | 522 |
if (ioctl (oss->fd, SNDCTL_DSP_SETTRIGGER, &trig) < 0) {
|
| 437 |
dolog ("SNDCTL_DSP_SETTRIGGER 0 failed\nReason: %s\n",
|
|
| 438 |
errstr ()); |
|
| 523 |
oss_logerr (errno, "SNDCTL_DSP_SETTRIGGER 0 failed\n"); |
|
| 439 | 524 |
return -1; |
| 440 | 525 |
} |
| 441 | 526 |
break; |
| ... | ... | |
| 443 | 528 |
return 0; |
| 444 | 529 |
} |
| 445 | 530 |
|
| 531 |
static int oss_init_in (HWVoiceIn *hw, |
|
| 532 |
int freq, int nchannels, audfmt_e fmt) |
|
| 533 |
{
|
|
| 534 |
OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
|
| 535 |
struct oss_params req, obt; |
|
| 536 |
int endianness; |
|
| 537 |
int err; |
|
| 538 |
int fd; |
|
| 539 |
audfmt_e effective_fmt; |
|
| 540 |
|
|
| 541 |
req.fmt = aud_to_ossfmt (fmt); |
|
| 542 |
req.freq = freq; |
|
| 543 |
req.nchannels = nchannels; |
|
| 544 |
req.fragsize = conf.fragsize; |
|
| 545 |
req.nfrags = conf.nfrags; |
|
| 546 |
if (oss_open (1, &req, &obt, &fd)) {
|
|
| 547 |
return -1; |
|
| 548 |
} |
|
| 549 |
|
|
| 550 |
err = oss_to_audfmt (obt.fmt, &effective_fmt, &endianness); |
|
| 551 |
if (err) {
|
|
| 552 |
oss_anal_close (&fd); |
|
| 553 |
return -1; |
|
| 554 |
} |
|
| 555 |
|
|
| 556 |
audio_pcm_init_info ( |
|
| 557 |
&hw->info, |
|
| 558 |
obt.freq, |
|
| 559 |
obt.nchannels, |
|
| 560 |
effective_fmt, |
|
| 561 |
audio_need_to_swap_endian (endianness) |
|
| 562 |
); |
|
| 563 |
oss->nfrags = obt.nfrags; |
|
| 564 |
oss->fragsize = obt.fragsize; |
|
| 565 |
hw->bufsize = obt.nfrags * obt.fragsize; |
|
| 566 |
oss->pcm_buf = qemu_mallocz (hw->bufsize); |
|
| 567 |
if (!oss->pcm_buf) {
|
|
| 568 |
oss_anal_close (&fd); |
|
| 569 |
return -1; |
|
| 570 |
} |
|
| 571 |
|
|
| 572 |
oss->fd = fd; |
|
| 573 |
return 0; |
|
| 574 |
} |
|
| 575 |
|
|
| 576 |
static void oss_fini_in (HWVoiceIn *hw) |
|
| 577 |
{
|
|
| 578 |
OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
|
| 579 |
|
|
| 580 |
oss_anal_close (&oss->fd); |
|
| 581 |
|
|
| 582 |
if (oss->pcm_buf) {
|
|
| 583 |
qemu_free (oss->pcm_buf); |
|
| 584 |
oss->pcm_buf = NULL; |
|
| 585 |
} |
|
| 586 |
} |
|
| 587 |
|
|
| 588 |
static int oss_run_in (HWVoiceIn *hw) |
|
| 589 |
{
|
|
| 590 |
OSSVoiceIn *oss = (OSSVoiceIn *) hw; |
|
| 591 |
int hwshift = hw->info.shift; |
|
| 592 |
int i; |
|
| 593 |
int live = audio_pcm_hw_get_live_in (hw); |
|
| 594 |
int dead = hw->samples - live; |
|
| 595 |
size_t read_samples = 0; |
|
| 596 |
struct {
|
|
| 597 |
int add; |
|
| 598 |
int len; |
|
| 599 |
} bufs[2] = {
|
|
| 600 |
{ hw->wpos, 0 },
|
|
| 601 |
{ 0, 0 }
|
|
| 602 |
}; |
|
| 603 |
|
|
| 604 |
if (!dead) {
|
|
| 605 |
return 0; |
|
| 606 |
} |
|
| 607 |
|
|
| 608 |
if (hw->wpos + dead > hw->samples) {
|
|
| 609 |
bufs[0].len = (hw->samples - hw->wpos) << hwshift; |
|
| 610 |
bufs[1].len = (dead - (hw->samples - hw->wpos)) << hwshift; |
|
| 611 |
} |
|
| 612 |
else {
|
|
| 613 |
bufs[0].len = dead << hwshift; |
|
| 614 |
} |
|
| 615 |
|
|
| 616 |
|
|
| 617 |
for (i = 0; i < 2; ++i) {
|
|
| 618 |
ssize_t nread; |
|
| 619 |
|
|
| 620 |
if (bufs[i].len) {
|
|
| 621 |
void *p = advance (oss->pcm_buf, bufs[i].add << hwshift); |
|
| 622 |
nread = read (oss->fd, p, bufs[i].len); |
|
| 623 |
|
|
| 624 |
if (nread > 0) {
|
|
| 625 |
if (nread & hw->info.align) {
|
|
| 626 |
dolog ("warning: misaligned read %d (requested %d), "
|
|
| 627 |
"alignment %d\n", nread, bufs[i].add << hwshift, |
|
| 628 |
hw->info.align + 1); |
|
| 629 |
} |
|
| 630 |
read_samples += nread >> hwshift; |
|
| 631 |
hw->conv (hw->conv_buf + bufs[i].add, p, nread >> hwshift, |
|
| 632 |
&nominal_volume); |
|
| 633 |
} |
|
| 634 |
|
|
| 635 |
if (bufs[i].len - nread) {
|
|
| 636 |
if (nread == -1) {
|
|
| 637 |
switch (errno) {
|
|
| 638 |
case EINTR: |
|
| 639 |
case EAGAIN: |
|
| 640 |
break; |
|
| 641 |
default: |
|
| 642 |
oss_logerr ( |
|
| 643 |
errno, |
|
| 644 |
"Failed to read %d bytes of audio (to %p)\n", |
|
| 645 |
bufs[i].len, p |
|
| 646 |
); |
|
| 647 |
break; |
|
| 648 |
} |
|
| 649 |
} |
|
| 650 |
break; |
|
| 651 |
} |
|
| 652 |
} |
|
| 653 |
} |
|
| 654 |
|
|
| 655 |
hw->wpos = (hw->wpos + read_samples) % hw->samples; |
|
| 656 |
return read_samples; |
|
| 657 |
} |
|
| 658 |
|
|
| 659 |
static int oss_read (SWVoiceIn *sw, void *buf, int size) |
|
| 660 |
{
|
|
| 661 |
return audio_pcm_sw_read (sw, buf, size); |
|
| 662 |
} |
|
| 663 |
|
|
| 664 |
static int oss_ctl_in (HWVoiceIn *hw, int cmd, ...) |
|
| 665 |
{
|
|
| 666 |
(void) hw; |
|
| 667 |
(void) cmd; |
|
| 668 |
return 0; |
|
| 669 |
} |
|
| 670 |
|
|
| 446 | 671 |
static void *oss_audio_init (void) |
| 447 | 672 |
{
|
| 448 |
conf.fragsize = audio_get_conf_int (QC_OSS_FRAGSIZE, conf.fragsize); |
|
| 449 |
conf.nfrags = audio_get_conf_int (QC_OSS_NFRAGS, conf.nfrags); |
|
| 450 |
conf.try_mmap = audio_get_conf_int (QC_OSS_MMAP, conf.try_mmap); |
|
| 451 |
conf.dspname = audio_get_conf_str (QC_OSS_DEV, conf.dspname); |
|
| 452 | 673 |
return &conf; |
| 453 | 674 |
} |
| 454 | 675 |
|
| 455 | 676 |
static void oss_audio_fini (void *opaque) |
| 456 | 677 |
{
|
| 678 |
(void) opaque; |
|
| 457 | 679 |
} |
| 458 | 680 |
|
| 459 |
struct pcm_ops oss_pcm_ops = {
|
|
| 460 |
oss_hw_init, |
|
| 461 |
oss_hw_fini, |
|
| 462 |
oss_hw_run, |
|
| 463 |
oss_hw_write, |
|
| 464 |
oss_hw_ctl |
|
| 681 |
static struct audio_option oss_options[] = {
|
|
| 682 |
{"FRAGSIZE", AUD_OPT_INT, &conf.fragsize,
|
|
| 683 |
"Fragment size in bytes", NULL, 0}, |
|
| 684 |
{"NFRAGS", AUD_OPT_INT, &conf.nfrags,
|
|
| 685 |
"Number of fragments", NULL, 0}, |
|
| 686 |
{"MMAP", AUD_OPT_BOOL, &conf.try_mmap,
|
|
| 687 |
"Try using memory mapped access", NULL, 0}, |
|
| 688 |
{"DAC_DEV", AUD_OPT_STR, &conf.devpath_out,
|
|
| 689 |
"Path to DAC device", NULL, 0}, |
|
| 690 |
{"ADC_DEV", AUD_OPT_STR, &conf.devpath_in,
|
|
| 691 |
"Path to ADC device", NULL, 0}, |
|
| 692 |
{NULL, 0, NULL, NULL, NULL, 0}
|
|
| 693 |
}; |
|
| 694 |
|
|
| 695 |
static struct audio_pcm_ops oss_pcm_ops = {
|
|
| 696 |
oss_init_out, |
|
| 697 |
oss_fini_out, |
|
| 698 |
oss_run_out, |
|
| 699 |
oss_write, |
|
| 700 |
oss_ctl_out, |
|
| 701 |
|
|
| 702 |
oss_init_in, |
|
| 703 |
oss_fini_in, |
|
| 704 |
oss_run_in, |
|
| 705 |
oss_read, |
|
| 706 |
oss_ctl_in |
|
| 465 | 707 |
}; |
| 466 | 708 |
|
| 467 |
struct audio_output_driver oss_output_driver = {
|
|
| 468 |
"oss", |
|
| 469 |
oss_audio_init, |
|
| 470 |
oss_audio_fini, |
|
| 471 |
&oss_pcm_ops, |
|
| 472 |
1, |
|
| 473 |
INT_MAX, |
|
| 474 |
sizeof (OSSVoice) |
|
| 709 |
struct audio_driver oss_audio_driver = {
|
|
| 710 |
INIT_FIELD (name = ) "oss", |
|
| 711 |
INIT_FIELD (descr = ) "OSS http://www.opensound.com", |
|
| 712 |
INIT_FIELD (options = ) oss_options, |
|
| 713 |
INIT_FIELD (init = ) oss_audio_init, |
|
| 714 |
INIT_FIELD (fini = ) oss_audio_fini, |
|
| 715 |
INIT_FIELD (pcm_ops = ) &oss_pcm_ops, |
|
| 716 |
INIT_FIELD (can_be_default = ) 1, |
|
| 717 |
INIT_FIELD (max_voices_out = ) INT_MAX, |
|
| 718 |
INIT_FIELD (max_voices_in = ) INT_MAX, |
|
| 719 |
INIT_FIELD (voice_size_out = ) sizeof (OSSVoiceOut), |
|
| 720 |
INIT_FIELD (voice_size_in = ) sizeof (OSSVoiceIn) |
|
| 475 | 721 |
}; |
Also available in: Unified diff