diff options
Diffstat (limited to 'src/modules/module-solaris.c')
| -rw-r--r-- | src/modules/module-solaris.c | 1152 |
1 files changed, 1152 insertions, 0 deletions
diff --git a/src/modules/module-solaris.c b/src/modules/module-solaris.c new file mode 100644 index 0000000..038aca1 --- /dev/null +++ b/src/modules/module-solaris.c @@ -0,0 +1,1152 @@ +/*** + This file is part of PulseAudio. + + Copyright 2006 Lennart Poettering + Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB + Copyright 2009 Finn Thain + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2.1 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> +#include <sys/types.h> + +#ifdef HAVE_POLL_H +#include <poll.h> +#endif + +#include <signal.h> +#include <stropts.h> +#include <sys/audio.h> + +#ifdef HAVE_SYS_CONF_H +#include <sys/conf.h> +#endif + +#include <pulse/mainloop-signal.h> +#include <pulse/xmalloc.h> +#include <pulse/timeval.h> +#include <pulse/util.h> +#include <pulse/rtclock.h> + +#include <pulsecore/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/module.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/core-util.h> +#include <pulsecore/modargs.h> +#include <pulsecore/log.h> +#include <pulsecore/core-error.h> +#include <pulsecore/thread-mq.h> +#include <pulsecore/rtpoll.h> +#include <pulsecore/thread.h> +#include <pulsecore/time-smoother.h> + +PA_MODULE_AUTHOR("Pierre Ossman"); +PA_MODULE_DESCRIPTION("Solaris Sink/Source"); +PA_MODULE_VERSION(PACKAGE_VERSION); +PA_MODULE_USAGE( + "sink_name=<name for the sink> " + "sink_properties=<properties for the sink> " + "source_name=<name for the source> " + "source_properties=<properties for the source> " + "device=<audio device file name> " + "record=<enable source?> " + "playback=<enable sink?> " + "format=<sample format> " + "channels=<number of channels> " + "rate=<sample rate> " + "buffer_length=<milliseconds> " + "channel_map=<channel map>"); +PA_MODULE_LOAD_ONCE(false); + +struct userdata { + pa_core *core; + pa_sink *sink; + pa_source *source; + + pa_thread *thread; + pa_thread_mq thread_mq; + pa_rtpoll *rtpoll; + + pa_signal_event *sig; + + pa_memchunk memchunk; + + uint32_t frame_size; + int32_t buffer_size; + uint64_t written_bytes, read_bytes; + + char *device_name; + int mode; + int fd; + pa_rtpoll_item *rtpoll_item; + pa_module *module; + + bool sink_suspended, source_suspended; + + uint32_t play_samples_msw, record_samples_msw; + uint32_t prev_playback_samples, prev_record_samples; + + int32_t minimum_request; + + pa_smoother *smoother; +}; + +static const char* const valid_modargs[] = { + "sink_name", + "sink_properties", + "source_name", + "source_properties", + "device", + "record", + "playback", + "buffer_length", + "format", + "rate", + "channels", + "channel_map", + NULL +}; + +#define DEFAULT_DEVICE "/dev/audio" + +#define MAX_RENDER_HZ (300) +/* This render rate limit imposes a minimum latency, but without it we waste too much CPU time. */ + +#define MAX_BUFFER_SIZE (128 * 1024) +/* An attempt to buffer more than 128 KB causes write() to fail with errno == EAGAIN. */ + +static uint64_t get_playback_buffered_bytes(struct userdata *u) { + audio_info_t info; + uint64_t played_bytes; + int err; + + pa_assert(u->sink); + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + /* Handle wrap-around of the device's sample counter, which is a uint_32. */ + if (u->prev_playback_samples > info.play.samples) { + /* + * Unfortunately info.play.samples can sometimes go backwards, even before it wraps! + * The bug seems to be absent on Solaris x86 nv117 with audio810 driver, at least on this (UP) machine. + * The bug is present on a different (SMP) machine running Solaris x86 nv103 with audioens driver. + * An earlier revision of this file mentions the same bug independently (unknown configuration). + */ + if (u->prev_playback_samples + info.play.samples < 240000) { + ++u->play_samples_msw; + } else { + pa_log_debug("play.samples went backwards %d bytes", u->prev_playback_samples - info.play.samples); + } + } + u->prev_playback_samples = info.play.samples; + played_bytes = (((uint64_t)u->play_samples_msw << 32) + info.play.samples) * u->frame_size; + + pa_smoother_put(u->smoother, pa_rtclock_now(), pa_bytes_to_usec(played_bytes, &u->sink->sample_spec)); + + if (u->written_bytes > played_bytes) + return u->written_bytes - played_bytes; + else + return 0; +} + +static pa_usec_t sink_get_latency(struct userdata *u, pa_sample_spec *ss) { + pa_usec_t r = 0; + + pa_assert(u); + pa_assert(ss); + + if (u->fd >= 0) { + r = pa_bytes_to_usec(get_playback_buffered_bytes(u), ss); + if (u->memchunk.memblock) + r += pa_bytes_to_usec(u->memchunk.length, ss); + } + return r; +} + +static uint64_t get_recorded_bytes(struct userdata *u) { + audio_info_t info; + uint64_t result; + int err; + + pa_assert(u->source); + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + if (u->prev_record_samples > info.record.samples) + ++u->record_samples_msw; + u->prev_record_samples = info.record.samples; + result = (((uint64_t)u->record_samples_msw << 32) + info.record.samples) * u->frame_size; + + return result; +} + +static pa_usec_t source_get_latency(struct userdata *u, pa_sample_spec *ss) { + pa_usec_t r = 0; + audio_info_t info; + + pa_assert(u); + pa_assert(ss); + + if (u->fd) { + int err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + r = pa_bytes_to_usec(get_recorded_bytes(u), ss) - pa_bytes_to_usec(u->read_bytes, ss); + } + return r; +} + +static void build_pollfd(struct userdata *u) { + struct pollfd *pollfd; + + pa_assert(u); + pa_assert(!u->rtpoll_item); + u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1); + + pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); + pollfd->fd = u->fd; + pollfd->events = 0; + pollfd->revents = 0; +} + +static int set_buffer(int fd, int buffer_size) { + audio_info_t info; + + pa_assert(fd >= 0); + + AUDIO_INITINFO(&info); + info.play.buffer_size = buffer_size; + info.record.buffer_size = buffer_size; + + if (ioctl(fd, AUDIO_SETINFO, &info) < 0) { + if (errno == EINVAL) + pa_log("AUDIO_SETINFO: Unsupported buffer size."); + else + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + return -1; + } + + return 0; +} + +static int auto_format(int fd, int mode, pa_sample_spec *ss) { + audio_info_t info; + + pa_assert(fd >= 0); + pa_assert(ss); + + AUDIO_INITINFO(&info); + + if (mode != O_RDONLY) { + info.play.sample_rate = ss->rate; + info.play.channels = ss->channels; + switch (ss->format) { + case PA_SAMPLE_U8: + info.play.precision = 8; + info.play.encoding = AUDIO_ENCODING_LINEAR; + break; + case PA_SAMPLE_ALAW: + info.play.precision = 8; + info.play.encoding = AUDIO_ENCODING_ALAW; + break; + case PA_SAMPLE_ULAW: + info.play.precision = 8; + info.play.encoding = AUDIO_ENCODING_ULAW; + break; + case PA_SAMPLE_S16NE: + info.play.precision = 16; + info.play.encoding = AUDIO_ENCODING_LINEAR; + break; + default: + pa_log("AUDIO_SETINFO: Unsupported sample format."); + return -1; + } + } + + if (mode != O_WRONLY) { + info.record.sample_rate = ss->rate; + info.record.channels = ss->channels; + switch (ss->format) { + case PA_SAMPLE_U8: + info.record.precision = 8; + info.record.encoding = AUDIO_ENCODING_LINEAR; + break; + case PA_SAMPLE_ALAW: + info.record.precision = 8; + info.record.encoding = AUDIO_ENCODING_ALAW; + break; + case PA_SAMPLE_ULAW: + info.record.precision = 8; + info.record.encoding = AUDIO_ENCODING_ULAW; + break; + case PA_SAMPLE_S16NE: + info.record.precision = 16; + info.record.encoding = AUDIO_ENCODING_LINEAR; + break; + default: + pa_log("AUDIO_SETINFO: Unsupported sample format."); + return -1; + } + } + + if (ioctl(fd, AUDIO_SETINFO, &info) < 0) { + if (errno == EINVAL) + pa_log("AUDIO_SETINFO: Failed to set sample format."); + else + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + return -1; + } + + return 0; +} + +static int open_audio_device(struct userdata *u, pa_sample_spec *ss) { + pa_assert(u); + pa_assert(ss); + + if ((u->fd = pa_open_cloexec(u->device_name, u->mode | O_NONBLOCK, 0)) < 0) { + pa_log_warn("open %s failed (%s)", u->device_name, pa_cstrerror(errno)); + return -1; + } + + pa_log_info("device opened in %s mode.", u->mode == O_WRONLY ? "O_WRONLY" : (u->mode == O_RDONLY ? "O_RDONLY" : "O_RDWR")); + + if (auto_format(u->fd, u->mode, ss) < 0) + return -1; + + if (set_buffer(u->fd, u->buffer_size) < 0) + return -1; + + u->written_bytes = u->read_bytes = 0; + u->play_samples_msw = u->record_samples_msw = 0; + u->prev_playback_samples = u->prev_record_samples = 0; + + return u->fd; +} + +static void suspend(struct userdata *u) { + pa_assert(u); + pa_assert(u->fd >= 0); + + pa_log_info("Suspending..."); + + ioctl(u->fd, I_FLUSH, FLUSHRW); + pa_close(u->fd); + u->fd = -1; + + if (u->rtpoll_item) { + pa_rtpoll_item_free(u->rtpoll_item); + u->rtpoll_item = NULL; + } + + pa_log_info("Device suspended."); +} + +static int unsuspend(struct userdata *u) { + pa_assert(u); + pa_assert(u->fd < 0); + + pa_log_info("Resuming..."); + + if (open_audio_device(u, u->sink ? &u->sink->sample_spec : &u->source->sample_spec) < 0) + return -1; + + build_pollfd(u); + + pa_log_info("Device resumed."); + + return 0; +} + +static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) { + struct userdata *u = PA_SINK(o)->userdata; + + switch (code) { + + case PA_SINK_MESSAGE_GET_LATENCY: + *((int64_t*) data) = sink_get_latency(u, &PA_SINK(o)->sample_spec); + return 0; + } + + return pa_sink_process_msg(o, code, data, offset, chunk); +} + +/* Called from the IO thread. */ +static int sink_set_state_in_io_thread_cb(pa_sink *s, pa_sink_state_t new_state, pa_suspend_cause_t new_suspend_cause) { + struct userdata *u; + + pa_assert(s); + pa_assert_se(u = s->userdata); + + /* It may be that only the suspend cause is changing, in which case there's + * nothing to do. */ + if (new_state == s->thread_info.state) + return 0; + + switch (new_state) { + + case PA_SINK_SUSPENDED: + + pa_assert(PA_SINK_IS_OPENED(s->thread_info.state)); + + pa_smoother_pause(u->smoother, pa_rtclock_now()); + + if (!u->source || u->source_suspended) + suspend(u); + + u->sink_suspended = true; + break; + + case PA_SINK_IDLE: + case PA_SINK_RUNNING: + + if (s->thread_info.state == PA_SINK_SUSPENDED) { + pa_smoother_resume(u->smoother, pa_rtclock_now(), true); + + if (!u->source || u->source_suspended) { + bool mute; + if (unsuspend(u) < 0) + return -1; + s->get_volume(s); + if (s->get_mute(s, &mute) >= 0) + pa_sink_set_mute(s, mute, false); + } + u->sink_suspended = false; + } + break; + + case PA_SINK_INVALID_STATE: + case PA_SINK_UNLINKED: + case PA_SINK_INIT: + ; + } + + return 0; +} + +static int source_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) { + struct userdata *u = PA_SOURCE(o)->userdata; + + switch (code) { + + case PA_SOURCE_MESSAGE_GET_LATENCY: + *((pa_usec_t*) data) = source_get_latency(u, &PA_SOURCE(o)->sample_spec); + return 0; + } + + return pa_source_process_msg(o, code, data, offset, chunk); +} + +/* Called from the IO thread. */ +static int source_set_state_in_io_thread_cb(pa_source *s, pa_source_state_t new_state, pa_suspend_cause_t new_suspend_cause) { + struct userdata *u; + + pa_assert(s); + pa_assert_se(u = s->userdata); + + /* It may be that only the suspend cause is changing, in which case there's + * nothing to do. */ + if (new_state == s->thread_info.state) + return 0; + + switch (new_state) { + + case PA_SOURCE_SUSPENDED: + + pa_assert(PA_SOURCE_IS_OPENED(s->thread_info.state)); + + if (!u->sink || u->sink_suspended) + suspend(u); + + u->source_suspended = true; + break; + + case PA_SOURCE_IDLE: + case PA_SOURCE_RUNNING: + + if (s->thread_info.state == PA_SOURCE_SUSPENDED) { + if (!u->sink || u->sink_suspended) { + if (unsuspend(u) < 0) + return -1; + s->get_volume(s); + } + u->source_suspended = false; + } + break; + + case PA_SOURCE_UNLINKED: + case PA_SOURCE_INIT: + case PA_SOURCE_INVALID_STATE: + ; + + } + + return 0; +} + +static void sink_set_volume(pa_sink *s) { + struct userdata *u; + audio_info_t info; + + pa_assert_se(u = s->userdata); + + if (u->fd >= 0) { + AUDIO_INITINFO(&info); + + info.play.gain = pa_cvolume_max(&s->real_volume) * AUDIO_MAX_GAIN / PA_VOLUME_NORM; + pa_assert(info.play.gain <= AUDIO_MAX_GAIN); + + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) { + if (errno == EINVAL) + pa_log("AUDIO_SETINFO: Unsupported volume."); + else + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + } + } +} + +static void sink_get_volume(pa_sink *s) { + struct userdata *u; + audio_info_t info; + + pa_assert_se(u = s->userdata); + + if (u->fd >= 0) { + if (ioctl(u->fd, AUDIO_GETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + else + pa_cvolume_set(&s->real_volume, s->sample_spec.channels, info.play.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN); + } +} + +static void source_set_volume(pa_source *s) { + struct userdata *u; + audio_info_t info; + + pa_assert_se(u = s->userdata); + + if (u->fd >= 0) { + AUDIO_INITINFO(&info); + + info.play.gain = pa_cvolume_max(&s->real_volume) * AUDIO_MAX_GAIN / PA_VOLUME_NORM; + pa_assert(info.play.gain <= AUDIO_MAX_GAIN); + + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) { + if (errno == EINVAL) + pa_log("AUDIO_SETINFO: Unsupported volume."); + else + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + } + } +} + +static void source_get_volume(pa_source *s) { + struct userdata *u; + audio_info_t info; + + pa_assert_se(u = s->userdata); + + if (u->fd >= 0) { + if (ioctl(u->fd, AUDIO_GETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + else + pa_cvolume_set(&s->real_volume, s->sample_spec.channels, info.play.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN); + } +} + +static void sink_set_mute(pa_sink *s) { + struct userdata *u = s->userdata; + audio_info_t info; + + pa_assert(u); + + if (u->fd >= 0) { + AUDIO_INITINFO(&info); + + info.output_muted = s->muted; + + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + } +} + +static int sink_get_mute(pa_sink *s, bool *mute) { + struct userdata *u = s->userdata; + audio_info_t info; + + pa_assert(u); + + if (u->fd < 0) + return -1; + + if (ioctl(u->fd, AUDIO_GETINFO, &info) < 0) { + pa_log("AUDIO_GETINFO: %s", pa_cstrerror(errno)); + return -1; + } + + *mute = info.output_muted; + + return 0; +} + +static void process_rewind(struct userdata *u) { + size_t rewind_nbytes; + + pa_assert(u); + + if (!PA_SINK_IS_OPENED(u->sink->thread_info.state)) { + pa_sink_process_rewind(u->sink, 0); + return; + } + + rewind_nbytes = u->sink->thread_info.rewind_nbytes; + + if (rewind_nbytes > 0) { + pa_log_debug("Requested to rewind %lu bytes.", (unsigned long) rewind_nbytes); + rewind_nbytes = PA_MIN(u->memchunk.length, rewind_nbytes); + u->memchunk.length -= rewind_nbytes; + if (u->memchunk.length <= 0 && u->memchunk.memblock) { + pa_memblock_unref(u->memchunk.memblock); + pa_memchunk_reset(&u->memchunk); + } + pa_log_debug("Rewound %lu bytes.", (unsigned long) rewind_nbytes); + } + + pa_sink_process_rewind(u->sink, rewind_nbytes); +} + +static void thread_func(void *userdata) { + struct userdata *u = userdata; + unsigned short revents = 0; + int ret, err; + audio_info_t info; + + pa_assert(u); + + pa_log_debug("Thread starting up"); + + if (u->core->realtime_scheduling) + pa_thread_make_realtime(u->core->realtime_priority); + + pa_thread_mq_install(&u->thread_mq); + + pa_smoother_set_time_offset(u->smoother, pa_rtclock_now()); + + for (;;) { + /* Render some data and write it to the dsp */ + + if (PA_UNLIKELY(u->sink->thread_info.rewind_requested)) + process_rewind(u); + + if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) { + pa_usec_t xtime0, ysleep_interval, xsleep_interval; + uint64_t buffered_bytes; + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + if (err < 0) { + pa_log("AUDIO_GETINFO ioctl failed: %s", pa_cstrerror(errno)); + goto fail; + } + + if (info.play.error) { + pa_log_debug("buffer under-run!"); + + AUDIO_INITINFO(&info); + info.play.error = 0; + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + + pa_smoother_reset(u->smoother, pa_rtclock_now(), true); + } + + for (;;) { + void *p; + ssize_t w; + size_t len; + int write_type = 1; + + /* + * Since we cannot modify the size of the output buffer we fake it + * by not filling it more than u->buffer_size. + */ + xtime0 = pa_rtclock_now(); + buffered_bytes = get_playback_buffered_bytes(u); + if (buffered_bytes >= (uint64_t)u->buffer_size) + break; + + len = u->buffer_size - buffered_bytes; + len -= len % u->frame_size; + + if (len < (size_t) u->minimum_request) + break; + + if (!u->memchunk.length) + pa_sink_render(u->sink, u->sink->thread_info.max_request, &u->memchunk); + + len = PA_MIN(u->memchunk.length, len); + + p = pa_memblock_acquire(u->memchunk.memblock); + w = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, len, &write_type); + pa_memblock_release(u->memchunk.memblock); + + if (w <= 0) { + if (errno == EINTR) { + continue; + } else if (errno == EAGAIN) { + /* We may have realtime priority so yield the CPU to ensure that fd can become writable again. */ + pa_log_debug("EAGAIN with %llu bytes buffered.", buffered_bytes); + break; + } else { + pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno)); + goto fail; + } + } else { + pa_assert(w % u->frame_size == 0); + + u->written_bytes += w; + u->memchunk.index += w; + u->memchunk.length -= w; + if (u->memchunk.length <= 0) { + pa_memblock_unref(u->memchunk.memblock); + pa_memchunk_reset(&u->memchunk); + } + } + } + + ysleep_interval = pa_bytes_to_usec(buffered_bytes / 2, &u->sink->sample_spec); + xsleep_interval = pa_smoother_translate(u->smoother, xtime0, ysleep_interval); + pa_rtpoll_set_timer_absolute(u->rtpoll, xtime0 + PA_MIN(xsleep_interval, ysleep_interval)); + } else + pa_rtpoll_set_timer_disabled(u->rtpoll); + + /* Try to read some data and pass it on to the source driver */ + + if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state) && (revents & POLLIN)) { + pa_memchunk memchunk; + void *p; + ssize_t r; + size_t len; + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + if (info.record.error) { + pa_log_debug("buffer overflow!"); + + AUDIO_INITINFO(&info); + info.record.error = 0; + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + } + + err = ioctl(u->fd, I_NREAD, &len); + pa_assert(err >= 0); + + if (len > 0) { + memchunk.memblock = pa_memblock_new(u->core->mempool, len); + pa_assert(memchunk.memblock); + + p = pa_memblock_acquire(memchunk.memblock); + r = pa_read(u->fd, p, len, NULL); + pa_memblock_release(memchunk.memblock); + + if (r < 0) { + pa_memblock_unref(memchunk.memblock); + if (errno == EAGAIN) + break; + else { + pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno)); + goto fail; + } + } else { + u->read_bytes += r; + + memchunk.index = 0; + memchunk.length = r; + + pa_source_post(u->source, &memchunk); + pa_memblock_unref(memchunk.memblock); + + revents &= ~POLLIN; + } + } + } + + if (u->rtpoll_item) { + struct pollfd *pollfd; + + pa_assert(u->fd >= 0); + + pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); + pollfd->events = (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) ? POLLIN : 0; + } + + /* Hmm, nothing to do. Let's sleep */ + if ((ret = pa_rtpoll_run(u->rtpoll)) < 0) + goto fail; + + if (ret == 0) + goto finish; + + if (u->rtpoll_item) { + struct pollfd *pollfd; + + pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); + + if (pollfd->revents & ~(POLLOUT|POLLIN)) { + pa_log("DSP shutdown."); + goto fail; + } + + revents = pollfd->revents; + } else + revents = 0; + } + +fail: + /* We have to continue processing messages until we receive the + * SHUTDOWN message */ + pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL); + pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN); + +finish: + pa_log_debug("Thread shutting down"); +} + +static void sig_callback(pa_mainloop_api *api, pa_signal_event*e, int sig, void *userdata) { + struct userdata *u = userdata; + + pa_assert(u); + + pa_log_debug("caught signal"); + + if (u->sink) { + pa_sink_get_volume(u->sink, true); + pa_sink_get_mute(u->sink, true); + } + + if (u->source) + pa_source_get_volume(u->source, true); +} + +int pa__init(pa_module *m) { + struct userdata *u = NULL; + bool record = true, playback = true; + pa_sample_spec ss; + pa_channel_map map; + pa_modargs *ma = NULL; + uint32_t buffer_length_msec; + int fd = -1; + pa_sink_new_data sink_new_data; + pa_source_new_data source_new_data; + char const *name; + char *name_buf; + bool namereg_fail; + + pa_assert(m); + + if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { + pa_log("failed to parse module arguments."); + goto fail; + } + + if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) { + pa_log("record= and playback= expect a boolean argument."); + goto fail; + } + + if (!playback && !record) { + pa_log("neither playback nor record enabled for device."); + goto fail; + } + + u = pa_xnew0(struct userdata, 1); + + if (!(u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC * 2, true, true, 10, pa_rtclock_now(), true))) + goto fail; + + /* + * For a process (or several processes) to use the same audio device for both + * record and playback at the same time, the device's mixer must be enabled. + * See mixerctl(1). It may be turned off for playback only or record only. + */ + u->mode = (playback && record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0)); + + ss = m->core->default_sample_spec; + if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_DEFAULT) < 0) { + pa_log("failed to parse sample specification"); + goto fail; + } + u->frame_size = pa_frame_size(&ss); + + u->minimum_request = pa_usec_to_bytes(PA_USEC_PER_SEC / MAX_RENDER_HZ, &ss); + + buffer_length_msec = 100; + if (pa_modargs_get_value_u32(ma, "buffer_length", &buffer_length_msec) < 0) { + pa_log("failed to parse buffer_length argument"); + goto fail; + } + u->buffer_size = pa_usec_to_bytes(1000 * buffer_length_msec, &ss); + if (u->buffer_size < 2 * u->minimum_request) { + pa_log("buffer_length argument cannot be smaller than %u", + (unsigned)(pa_bytes_to_usec(2 * u->minimum_request, &ss) / 1000)); + goto fail; + } + if (u->buffer_size > MAX_BUFFER_SIZE) { + pa_log("buffer_length argument cannot be greater than %u", + (unsigned)(pa_bytes_to_usec(MAX_BUFFER_SIZE, &ss) / 1000)); + goto fail; + } + + u->device_name = pa_xstrdup(pa_modargs_get_value(ma, "device", DEFAULT_DEVICE)); + + if ((fd = open_audio_device(u, &ss)) < 0) + goto fail; + + u->core = m->core; + u->module = m; + m->userdata = u; + + pa_memchunk_reset(&u->memchunk); + + u->rtpoll = pa_rtpoll_new(); + + if (pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll) < 0) { + pa_log("pa_thread_mq_init() failed."); + goto fail; + } + + u->rtpoll_item = NULL; + build_pollfd(u); + + if (u->mode != O_WRONLY) { + name_buf = NULL; + namereg_fail = true; + + if (!(name = pa_modargs_get_value(ma, "source_name", NULL))) { + name = name_buf = pa_sprintf_malloc("solaris_input.%s", pa_path_get_filename(u->device_name)); + namereg_fail = false; + } + + pa_source_new_data_init(&source_new_data); + source_new_data.driver = __FILE__; + source_new_data.module = m; + pa_source_new_data_set_name(&source_new_data, name); + source_new_data.namereg_fail = namereg_fail; + pa_source_new_data_set_sample_spec(&source_new_data, &ss); + pa_source_new_data_set_channel_map(&source_new_data, &map); + pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_STRING, u->device_name); + pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_API, "solaris"); + pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Solaris PCM source"); + pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, "serial"); + pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) u->buffer_size); + + if (pa_modargs_get_proplist(ma, "source_properties", source_new_data.proplist, PA_UPDATE_REPLACE) < 0) { + pa_log("Invalid properties"); + pa_source_new_data_done(&source_new_data); + goto fail; + } + + u->source = pa_source_new(m->core, &source_new_data, PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY); + pa_source_new_data_done(&source_new_data); + pa_xfree(name_buf); + + if (!u->source) { + pa_log("Failed to create source object"); + goto fail; + } + + u->source->userdata = u; + u->source->parent.process_msg = source_process_msg; + u->source->set_state_in_io_thread = source_set_state_in_io_thread_cb; + + pa_source_set_asyncmsgq(u->source, u->thread_mq.inq); + pa_source_set_rtpoll(u->source, u->rtpoll); + pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(u->buffer_size, &u->source->sample_spec)); + + pa_source_set_get_volume_callback(u->source, source_get_volume); + pa_source_set_set_volume_callback(u->source, source_set_volume); + u->source->refresh_volume = true; + } else + u->source = NULL; + + if (u->mode != O_RDONLY) { + name_buf = NULL; + namereg_fail = true; + if (!(name = pa_modargs_get_value(ma, "sink_name", NULL))) { + name = name_buf = pa_sprintf_malloc("solaris_output.%s", pa_path_get_filename(u->device_name)); + namereg_fail = false; + } + + pa_sink_new_data_init(&sink_new_data); + sink_new_data.driver = __FILE__; + sink_new_data.module = m; + pa_sink_new_data_set_name(&sink_new_data, name); + sink_new_data.namereg_fail = namereg_fail; + pa_sink_new_data_set_sample_spec(&sink_new_data, &ss); + pa_sink_new_data_set_channel_map(&sink_new_data, &map); + pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_STRING, u->device_name); + pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_API, "solaris"); + pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Solaris PCM sink"); + pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, "serial"); + + if (pa_modargs_get_proplist(ma, "sink_properties", sink_new_data.proplist, PA_UPDATE_REPLACE) < 0) { + pa_log("Invalid properties"); + pa_sink_new_data_done(&sink_new_data); + goto fail; + } + + u->sink = pa_sink_new(m->core, &sink_new_data, PA_SINK_HARDWARE|PA_SINK_LATENCY); + pa_sink_new_data_done(&sink_new_data); + + pa_assert(u->sink); + u->sink->userdata = u; + u->sink->parent.process_msg = sink_process_msg; + u->sink->set_state_in_io_thread = sink_set_state_in_io_thread_cb; + + pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq); + pa_sink_set_rtpoll(u->sink, u->rtpoll); + pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(u->buffer_size, &u->sink->sample_spec)); + pa_sink_set_max_request(u->sink, u->buffer_size); + pa_sink_set_max_rewind(u->sink, u->buffer_size); + + pa_sink_set_get_volume_callback(u->sink, sink_get_volume); + pa_sink_set_set_volume_callback(u->sink, sink_set_volume); + pa_sink_set_get_mute_callback(u->sink, sink_get_mute); + pa_sink_set_set_mute_callback(u->sink, sink_set_mute); + u->sink->refresh_volume = u->sink->refresh_muted = true; + } else + u->sink = NULL; + + pa_assert(u->source || u->sink); + + u->sig = pa_signal_new(SIGPOLL, sig_callback, u); + if (u->sig) + ioctl(u->fd, I_SETSIG, S_MSG); + else + pa_log_warn("Could not register SIGPOLL handler"); + + if (!(u->thread = pa_thread_new("solaris", thread_func, u))) { + pa_log("Failed to create thread."); + goto fail; + } + + /* Read mixer settings */ + if (u->sink) { + if (sink_new_data.volume_is_set) + u->sink->set_volume(u->sink); + else + u->sink->get_volume(u->sink); + + if (sink_new_data.muted_is_set) + u->sink->set_mute(u->sink); + else { + bool mute; + + if (u->sink->get_mute(u->sink, &mute) >= 0) + pa_sink_set_mute(u->sink, mute, false); + } + + pa_sink_put(u->sink); + } + + if (u->source) { + if (source_new_data.volume_is_set) + u->source->set_volume(u->source); + else + u->source->get_volume(u->source); + + pa_source_put(u->source); + } + + pa_modargs_free(ma); + + return 0; + +fail: + if (u) + pa__done(m); + else if (fd >= 0) + close(fd); + + if (ma) + pa_modargs_free(ma); + + return -1; +} + +void pa__done(pa_module *m) { + struct userdata *u; + + pa_assert(m); + + if (!(u = m->userdata)) + return; + + if (u->sig) { + ioctl(u->fd, I_SETSIG, 0); + pa_signal_free(u->sig); + } + + if (u->sink) + pa_sink_unlink(u->sink); + + if (u->source) + pa_source_unlink(u->source); + + if (u->thread) { + pa_asyncmsgq_send(u->thread_mq.inq, NULL, PA_MESSAGE_SHUTDOWN, NULL, 0, NULL); + pa_thread_free(u->thread); + } + + pa_thread_mq_done(&u->thread_mq); + + if (u->sink) + pa_sink_unref(u->sink); + + if (u->source) + pa_source_unref(u->source); + + if (u->memchunk.memblock) + pa_memblock_unref(u->memchunk.memblock); + + if (u->rtpoll_item) + pa_rtpoll_item_free(u->rtpoll_item); + + if (u->rtpoll) + pa_rtpoll_free(u->rtpoll); + + if (u->fd >= 0) + close(u->fd); + + if (u->smoother) + pa_smoother_free(u->smoother); + + pa_xfree(u->device_name); + + pa_xfree(u); +} |