diff options
Diffstat (limited to 'audio/alsaaudio.c')
| -rw-r--r-- | audio/alsaaudio.c | 195 |
1 files changed, 83 insertions, 112 deletions
diff --git a/audio/alsaaudio.c b/audio/alsaaudio.c index 74ead97d87..6315b2d746 100644 --- a/audio/alsaaudio.c +++ b/audio/alsaaudio.c @@ -25,6 +25,7 @@ #include "qemu-common.h" #include "qemu/main-loop.h" #include "audio.h" +#include "trace.h" #if QEMU_GNUC_PREREQ(4, 3) #pragma GCC diagnostic ignored "-Waddress" @@ -33,9 +34,28 @@ #define AUDIO_CAP "alsa" #include "audio_int.h" +typedef struct ALSAConf { + int size_in_usec_in; + int size_in_usec_out; + const char *pcm_name_in; + const char *pcm_name_out; + unsigned int buffer_size_in; + unsigned int period_size_in; + unsigned int buffer_size_out; + unsigned int period_size_out; + unsigned int threshold; + + int buffer_size_in_overridden; + int period_size_in_overridden; + + int buffer_size_out_overridden; + int period_size_out_overridden; +} ALSAConf; + struct pollhlp { snd_pcm_t *handle; struct pollfd *pfds; + ALSAConf *conf; int count; int mask; }; @@ -56,30 +76,6 @@ typedef struct ALSAVoiceIn { struct pollhlp pollhlp; } ALSAVoiceIn; -static struct { - int size_in_usec_in; - int size_in_usec_out; - const char *pcm_name_in; - const char *pcm_name_out; - unsigned int buffer_size_in; - unsigned int period_size_in; - unsigned int buffer_size_out; - unsigned int period_size_out; - unsigned int threshold; - - int buffer_size_in_overridden; - int period_size_in_overridden; - - int buffer_size_out_overridden; - int period_size_out_overridden; - int verbose; -} conf = { - .buffer_size_out = 4096, - .period_size_out = 1024, - .pcm_name_out = "default", - .pcm_name_in = "default", -}; - struct alsa_params_req { int freq; snd_pcm_format_t fmt; @@ -205,9 +201,7 @@ static void alsa_poll_handler (void *opaque) } if (!(revents & hlp->mask)) { - if (conf.verbose) { - dolog ("revents = %d\n", revents); - } + trace_alsa_revents(revents); return; } @@ -266,31 +260,14 @@ static int alsa_poll_helper (snd_pcm_t *handle, struct pollhlp *hlp, int mask) for (i = 0; i < count; ++i) { if (pfds[i].events & POLLIN) { - err = qemu_set_fd_handler (pfds[i].fd, alsa_poll_handler, - NULL, hlp); + qemu_set_fd_handler (pfds[i].fd, alsa_poll_handler, NULL, hlp); } if (pfds[i].events & POLLOUT) { - if (conf.verbose) { - dolog ("POLLOUT %d %d\n", i, pfds[i].fd); - } - err = qemu_set_fd_handler (pfds[i].fd, NULL, - alsa_poll_handler, hlp); + trace_alsa_pollout(i, pfds[i].fd); + qemu_set_fd_handler (pfds[i].fd, NULL, alsa_poll_handler, hlp); } - if (conf.verbose) { - dolog ("Set handler events=%#x index=%d fd=%d err=%d\n", - pfds[i].events, i, pfds[i].fd, err); - } - - if (err) { - dolog ("Failed to set handler events=%#x index=%d fd=%d err=%d\n", - pfds[i].events, i, pfds[i].fd, err); + trace_alsa_set_handler(pfds[i].events, i, pfds[i].fd, err); - while (i--) { - qemu_set_fd_handler (pfds[i].fd, NULL, NULL, NULL); - } - g_free (pfds); - return -1; - } } hlp->pfds = pfds; hlp->count = count; @@ -476,14 +453,15 @@ static void alsa_set_threshold (snd_pcm_t *handle, snd_pcm_uframes_t threshold) } static int alsa_open (int in, struct alsa_params_req *req, - struct alsa_params_obt *obt, snd_pcm_t **handlep) + struct alsa_params_obt *obt, snd_pcm_t **handlep, + ALSAConf *conf) { snd_pcm_t *handle; snd_pcm_hw_params_t *hw_params; int err; int size_in_usec; unsigned int freq, nchannels; - const char *pcm_name = in ? conf.pcm_name_in : conf.pcm_name_out; + const char *pcm_name = in ? conf->pcm_name_in : conf->pcm_name_out; snd_pcm_uframes_t obt_buffer_size; const char *typ = in ? "ADC" : "DAC"; snd_pcm_format_t obtfmt; @@ -522,7 +500,7 @@ static int alsa_open (int in, struct alsa_params_req *req, } err = snd_pcm_hw_params_set_format (handle, hw_params, req->fmt); - if (err < 0 && conf.verbose) { + if (err < 0) { alsa_logerr2 (err, typ, "Failed to set format %d\n", req->fmt); } @@ -654,7 +632,7 @@ static int alsa_open (int in, struct alsa_params_req *req, goto err; } - if (!in && conf.threshold) { + if (!in && conf->threshold) { snd_pcm_uframes_t threshold; int bytes_per_sec; @@ -676,7 +654,7 @@ static int alsa_open (int in, struct alsa_params_req *req, break; } - threshold = (conf.threshold * bytes_per_sec) / 1000; + threshold = (conf->threshold * bytes_per_sec) / 1000; alsa_set_threshold (handle, threshold); } @@ -686,10 +664,9 @@ static int alsa_open (int in, struct alsa_params_req *req, *handlep = handle; - if (conf.verbose && - (obtfmt != req->fmt || + if (obtfmt != req->fmt || obt->nchannels != req->nchannels || - obt->freq != req->freq)) { + obt->freq != req->freq) { dolog ("Audio parameters for %s\n", typ); alsa_dump_info (req, obt, obtfmt); } @@ -743,9 +720,7 @@ static void alsa_write_pending (ALSAVoiceOut *alsa) if (written <= 0) { switch (written) { case 0: - if (conf.verbose) { - dolog ("Failed to write %d frames (wrote zero)\n", len); - } + trace_alsa_wrote_zero(len); return; case -EPIPE: @@ -754,9 +729,7 @@ static void alsa_write_pending (ALSAVoiceOut *alsa) len); return; } - if (conf.verbose) { - dolog ("Recovering from playback xrun\n"); - } + trace_alsa_xrun_out(); continue; case -ESTRPIPE: @@ -767,9 +740,7 @@ static void alsa_write_pending (ALSAVoiceOut *alsa) len); return; } - if (conf.verbose) { - dolog ("Resuming suspended output stream\n"); - } + trace_alsa_resume_out(); continue; case -EAGAIN: @@ -819,25 +790,27 @@ static void alsa_fini_out (HWVoiceOut *hw) alsa->pcm_buf = NULL; } -static int alsa_init_out (HWVoiceOut *hw, struct audsettings *as) +static int alsa_init_out(HWVoiceOut *hw, struct audsettings *as, + void *drv_opaque) { ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw; struct alsa_params_req req; struct alsa_params_obt obt; snd_pcm_t *handle; struct audsettings obt_as; + ALSAConf *conf = drv_opaque; req.fmt = aud_to_alsafmt (as->fmt, as->endianness); req.freq = as->freq; req.nchannels = as->nchannels; - req.period_size = conf.period_size_out; - req.buffer_size = conf.buffer_size_out; - req.size_in_usec = conf.size_in_usec_out; + req.period_size = conf->period_size_out; + req.buffer_size = conf->buffer_size_out; + req.size_in_usec = conf->size_in_usec_out; req.override_mask = - (conf.period_size_out_overridden ? 1 : 0) | - (conf.buffer_size_out_overridden ? 2 : 0); + (conf->period_size_out_overridden ? 1 : 0) | + (conf->buffer_size_out_overridden ? 2 : 0); - if (alsa_open (0, &req, &obt, &handle)) { + if (alsa_open (0, &req, &obt, &handle, conf)) { return -1; } @@ -858,6 +831,7 @@ static int alsa_init_out (HWVoiceOut *hw, struct audsettings *as) } alsa->handle = handle; + alsa->pollhlp.conf = conf; return 0; } @@ -928,25 +902,26 @@ static int alsa_ctl_out (HWVoiceOut *hw, int cmd, ...) return -1; } -static int alsa_init_in (HWVoiceIn *hw, struct audsettings *as) +static int alsa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) { ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw; struct alsa_params_req req; struct alsa_params_obt obt; snd_pcm_t *handle; struct audsettings obt_as; + ALSAConf *conf = drv_opaque; req.fmt = aud_to_alsafmt (as->fmt, as->endianness); req.freq = as->freq; req.nchannels = as->nchannels; - req.period_size = conf.period_size_in; - req.buffer_size = conf.buffer_size_in; - req.size_in_usec = conf.size_in_usec_in; + req.period_size = conf->period_size_in; + req.buffer_size = conf->buffer_size_in; + req.size_in_usec = conf->size_in_usec_in; req.override_mask = - (conf.period_size_in_overridden ? 1 : 0) | - (conf.buffer_size_in_overridden ? 2 : 0); + (conf->period_size_in_overridden ? 1 : 0) | + (conf->buffer_size_in_overridden ? 2 : 0); - if (alsa_open (1, &req, &obt, &handle)) { + if (alsa_open (1, &req, &obt, &handle, conf)) { return -1; } @@ -967,6 +942,7 @@ static int alsa_init_in (HWVoiceIn *hw, struct audsettings *as) } alsa->handle = handle; + alsa->pollhlp.conf = conf; return 0; } @@ -1022,14 +998,10 @@ static int alsa_run_in (HWVoiceIn *hw) dolog ("Failed to resume suspended input stream\n"); return 0; } - if (conf.verbose) { - dolog ("Resuming suspended input stream\n"); - } + trace_alsa_resume_in(); break; default: - if (conf.verbose) { - dolog ("No frames available and ALSA state is %d\n", state); - } + trace_alsa_no_frames(state); return 0; } } @@ -1064,9 +1036,7 @@ static int alsa_run_in (HWVoiceIn *hw) if (nread <= 0) { switch (nread) { case 0: - if (conf.verbose) { - dolog ("Failed to read %ld frames (read zero)\n", len); - } + trace_alsa_read_zero(len); goto exit; case -EPIPE: @@ -1074,9 +1044,7 @@ static int alsa_run_in (HWVoiceIn *hw) alsa_logerr (nread, "Failed to read %ld frames\n", len); goto exit; } - if (conf.verbose) { - dolog ("Recovering from capture xrun\n"); - } + trace_alsa_xrun_in(); continue; case -EAGAIN: @@ -1148,82 +1116,85 @@ static int alsa_ctl_in (HWVoiceIn *hw, int cmd, ...) return -1; } +static ALSAConf glob_conf = { + .buffer_size_out = 4096, + .period_size_out = 1024, + .pcm_name_out = "default", + .pcm_name_in = "default", +}; + static void *alsa_audio_init (void) { - return &conf; + ALSAConf *conf = g_malloc(sizeof(ALSAConf)); + *conf = glob_conf; + return conf; } static void alsa_audio_fini (void *opaque) { - (void) opaque; + g_free(opaque); } static struct audio_option alsa_options[] = { { .name = "DAC_SIZE_IN_USEC", .tag = AUD_OPT_BOOL, - .valp = &conf.size_in_usec_out, + .valp = &glob_conf.size_in_usec_out, .descr = "DAC period/buffer size in microseconds (otherwise in frames)" }, { .name = "DAC_PERIOD_SIZE", .tag = AUD_OPT_INT, - .valp = &conf.period_size_out, + .valp = &glob_conf.period_size_out, .descr = "DAC period size (0 to go with system default)", - .overriddenp = &conf.period_size_out_overridden + .overriddenp = &glob_conf.period_size_out_overridden }, { .name = "DAC_BUFFER_SIZE", .tag = AUD_OPT_INT, - .valp = &conf.buffer_size_out, + .valp = &glob_conf.buffer_size_out, .descr = "DAC buffer size (0 to go with system default)", - .overriddenp = &conf.buffer_size_out_overridden + .overriddenp = &glob_conf.buffer_size_out_overridden }, { .name = "ADC_SIZE_IN_USEC", .tag = AUD_OPT_BOOL, - .valp = &conf.size_in_usec_in, + .valp = &glob_conf.size_in_usec_in, .descr = "ADC period/buffer size in microseconds (otherwise in frames)" }, { .name = "ADC_PERIOD_SIZE", .tag = AUD_OPT_INT, - .valp = &conf.period_size_in, + .valp = &glob_conf.period_size_in, .descr = "ADC period size (0 to go with system default)", - .overriddenp = &conf.period_size_in_overridden + .overriddenp = &glob_conf.period_size_in_overridden }, { .name = "ADC_BUFFER_SIZE", .tag = AUD_OPT_INT, - .valp = &conf.buffer_size_in, + .valp = &glob_conf.buffer_size_in, .descr = "ADC buffer size (0 to go with system default)", - .overriddenp = &conf.buffer_size_in_overridden + .overriddenp = &glob_conf.buffer_size_in_overridden }, { .name = "THRESHOLD", .tag = AUD_OPT_INT, - .valp = &conf.threshold, + .valp = &glob_conf.threshold, .descr = "(undocumented)" }, { .name = "DAC_DEV", .tag = AUD_OPT_STR, - .valp = &conf.pcm_name_out, + .valp = &glob_conf.pcm_name_out, .descr = "DAC device name (for instance dmix)" }, { .name = "ADC_DEV", .tag = AUD_OPT_STR, - .valp = &conf.pcm_name_in, + .valp = &glob_conf.pcm_name_in, .descr = "ADC device name" }, - { - .name = "VERBOSE", - .tag = AUD_OPT_BOOL, - .valp = &conf.verbose, - .descr = "Behave in a more verbose way" - }, { /* End of list */ } }; |