diff options
Diffstat (limited to 'src/modules/module-solaris.c')
| -rw-r--r-- | src/modules/module-solaris.c | 766 |
1 files changed, 766 insertions, 0 deletions
diff --git a/src/modules/module-solaris.c b/src/modules/module-solaris.c new file mode 100644 index 00000000..4a5c88e4 --- /dev/null +++ b/src/modules/module-solaris.c @@ -0,0 +1,766 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + Copyright 2006 Lennart Poettering + Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB + + 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 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, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <limits.h> +#include <sys/ioctl.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include <signal.h> +#include <stropts.h> +#include <sys/conf.h> +#include <sys/audio.h> + +#include <pulse/error.h> +#include <pulse/mainloop-signal.h> +#include <pulse/xmalloc.h> +#include <pulse/timeval.h> + +#include <pulsecore/iochannel.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 "module-solaris-symdef.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> " + "source_name=<name for the source> " + "device=<OSS device> record=<enable source?> " + "playback=<enable sink?> " + "format=<sample format> " + "channels=<number of channels> " + "rate=<sample rate> " + "buffer_size=<record buffer size> " + "channel_map=<channel map>") + +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; + + unsigned int page_size; + + uint32_t frame_size; + uint32_t buffer_size; + unsigned int written_bytes, read_bytes; + + int fd; + pa_rtpoll_item *rtpoll_item; + pa_module *module; +}; + +static const char* const valid_modargs[] = { + "sink_name", + "source_name", + "device", + "record", + "playback", + "buffer_size", + "format", + "rate", + "channels", + "channel_map", + NULL +}; + +#define DEFAULT_SINK_NAME "solaris_output" +#define DEFAULT_SOURCE_NAME "solaris_input" +#define DEFAULT_DEVICE "/dev/audio" + +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; + int err; + audio_info_t info; + + switch (code) { + case PA_SINK_MESSAGE_GET_LATENCY: { + pa_usec_t r = 0; + + if (u->fd >= 0) { + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + r += pa_bytes_to_usec(u->written_bytes, &PA_SINK(o)->sample_spec); + r -= pa_bytes_to_usec(info.play.samples * u->frame_size, &PA_SINK(o)->sample_spec); + + if (u->memchunk.memblock) + r += pa_bytes_to_usec(u->memchunk.length, &PA_SINK(o)->sample_spec); + } + + *((pa_usec_t*) data) = r; + + return 0; + } + + case PA_SINK_MESSAGE_SET_VOLUME: + if (u->fd >= 0) { + AUDIO_INITINFO(&info); + + info.play.gain = pa_cvolume_avg((pa_cvolume*)data) * AUDIO_MAX_GAIN / PA_VOLUME_NORM; + 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)); + } else { + return 0; + } + } + break; + + case PA_SINK_MESSAGE_GET_VOLUME: + if (u->fd >= 0) { + err = ioctl(u->fd, AUDIO_GETINFO, &info); + assert(err >= 0); + + pa_cvolume_set((pa_cvolume*) data, ((pa_cvolume*) data)->channels, + info.play.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN); + + return 0; + } + break; + + case PA_SINK_MESSAGE_SET_MUTE: + if (u->fd >= 0) { + AUDIO_INITINFO(&info); + + info.output_muted = !!PA_PTR_TO_UINT(data); + + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + else + return 0; + } + break; + + case PA_SINK_MESSAGE_GET_MUTE: + if (u->fd >= 0) { + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + *(int*)data = !!info.output_muted; + + return 0; + } + break; + } + + return pa_sink_process_msg(o, code, data, offset, chunk); +} + +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; + int err; + audio_info_t info; + + switch (code) { + case PA_SOURCE_MESSAGE_GET_LATENCY: { + pa_usec_t r = 0; + + if (u->fd) { + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + r += pa_bytes_to_usec(info.record.samples * u->frame_size, &PA_SOURCE(o)->sample_spec); + r -= pa_bytes_to_usec(u->read_bytes, &PA_SOURCE(o)->sample_spec); + } + + *((pa_usec_t*) data) = r; + + return 0; + } + + case PA_SOURCE_MESSAGE_SET_VOLUME: + if (u->fd >= 0) { + AUDIO_INITINFO(&info); + + info.record.gain = pa_cvolume_avg((pa_cvolume*) data) * AUDIO_MAX_GAIN / PA_VOLUME_NORM; + assert(info.record.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)); + } else { + return 0; + } + } + break; + + case PA_SOURCE_MESSAGE_GET_VOLUME: + if (u->fd >= 0) { + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + pa_cvolume_set((pa_cvolume*) data, ((pa_cvolume*) data)->channels, + info.record.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN); + + return 0; + } + break; + } + + return pa_source_process_msg(o, code, data, offset, chunk); +} + +static void clear_underflow(struct userdata *u) +{ + audio_info_t info; + + AUDIO_INITINFO(&info); + + info.play.error = 0; + + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); +} + +static void clear_overflow(struct userdata *u) +{ + audio_info_t info; + + AUDIO_INITINFO(&info); + + info.record.error = 0; + + if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); +} + +static void thread_func(void *userdata) { + struct userdata *u = userdata; + unsigned short revents = 0; + int ret; + + pa_assert(u); + + pa_log_debug("Thread starting up"); + + if (u->core->high_priority) + pa_make_realtime(); + + pa_thread_mq_install(&u->thread_mq); + pa_rtpoll_install(u->rtpoll); + + for (;;) { + /* Render some data and write it to the dsp */ + + if (u->sink && PA_SINK_OPENED(u->sink->thread_info.state)) { + audio_info_t info; + int err; + size_t len; + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + /* + * Since we cannot modify the size of the output buffer we fake it + * by not filling it more than u->buffer_size. + */ + len = u->buffer_size; + len -= u->written_bytes - (info.play.samples * u->frame_size); + + /* The sample counter can sometimes go backwards :( */ + if (len > u->buffer_size) + len = 0; + + if (info.play.error) { + pa_log_debug("Solaris buffer underflow!"); + clear_underflow(u); + } + + len -= len % u->frame_size; + + while (len) { + void *p; + ssize_t r; + + if (!u->memchunk.length) + pa_sink_render(u->sink, len, &u->memchunk); + + pa_assert(u->memchunk.length); + + p = pa_memblock_acquire(u->memchunk.memblock); + r = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, NULL); + pa_memblock_release(u->memchunk.memblock); + + if (r < 0) { + if (errno == EINTR) + continue; + else if (errno != EAGAIN) { + pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno)); + goto fail; + } + } else { + pa_assert(r % u->frame_size == 0); + + u->memchunk.index += r; + u->memchunk.length -= r; + + if (u->memchunk.length <= 0) { + pa_memblock_unref(u->memchunk.memblock); + pa_memchunk_reset(&u->memchunk); + } + + len -= r; + u->written_bytes += r; + } + } + } + + /* Try to read some data and pass it on to the source driver */ + + if (u->source && PA_SOURCE_OPENED(u->source->thread_info.state) && ((revents & POLLIN))) { + pa_memchunk memchunk; + int err; + size_t l; + void *p; + ssize_t r; + audio_info_t info; + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + pa_assert(err >= 0); + + if (info.record.error) { + pa_log_debug("Solaris buffer overflow!"); + clear_overflow(u); + } + + err = ioctl(u->fd, I_NREAD, &l); + pa_assert(err >= 0); + + if (l > 0) { + /* This is to make sure it fits in the memory pool. Also, a page + should be the most efficient transfer size. */ + if (l > u->page_size) + l = u->page_size; + + memchunk.memblock = pa_memblock_new(u->core->mempool, l); + pa_assert(memchunk.memblock); + + p = pa_memblock_acquire(memchunk.memblock); + r = pa_read(u->fd, p, l, NULL); + pa_memblock_release(memchunk.memblock); + + if (r < 0) { + pa_memblock_unref(memchunk.memblock); + if (errno != EAGAIN) { + pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno)); + goto fail; + } + } else { + memchunk.index = 0; + memchunk.length = r; + + pa_source_post(u->source, &memchunk); + pa_memblock_unref(memchunk.memblock); + + u->read_bytes += r; + + revents &= ~POLLIN; + } + } + } + + if (u->fd >= 0) { + struct pollfd *pollfd; + + pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); + pollfd->events = + ((u->source && PA_SOURCE_OPENED(u->source->thread_info.state)) ? POLLIN : 0); + } + + /* Hmm, nothing to do. Let's sleep */ + if ((ret = pa_rtpoll_run(u->rtpoll, 1)) < 0) + goto fail; + + if (ret == 0) + goto finish; + + if (u->fd >= 0) { + 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; + + assert(u); + + if (u->sink) { + pa_sink_get_volume(u->sink); + pa_sink_get_mute(u->sink); + } + + if (u->source) + pa_source_get_volume(u->source); +} + +static int pa_solaris_auto_format(int fd, int mode, pa_sample_spec *ss) { + audio_info_t info; + + 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: + 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: + return -1; + } + } + + if (ioctl(fd, AUDIO_SETINFO, &info) < 0) { + if (errno == EINVAL) + pa_log("AUDIO_SETINFO: Unsupported sample format."); + else + pa_log("AUDIO_SETINFO: %s", pa_cstrerror(errno)); + return -1; + } + + return 0; +} + +static int pa_solaris_set_buffer(int fd, int buffer_size) { + audio_info_t info; + + 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; +} + +int pa__init(pa_module *m) { + struct userdata *u = NULL; + const char *p; + int fd = -1; + int buffer_size; + int mode; + int record = 1, playback = 1; + pa_sample_spec ss; + pa_channel_map map; + pa_modargs *ma = NULL; + char *t; + struct pollfd *pollfd; + + 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 numeric argument."); + goto fail; + } + + if (!playback && !record) { + pa_log("neither playback nor record enabled for device."); + goto fail; + } + + mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0)); + + buffer_size = 16384; + if (pa_modargs_get_value_s32(ma, "buffer_size", &buffer_size) < 0) { + pa_log("failed to parse buffer size argument"); + goto fail; + } + + 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; + } + + if ((fd = open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), mode | O_NONBLOCK)) < 0) + goto fail; + + pa_log_info("device opened in %s mode.", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR")); + + if (pa_solaris_auto_format(fd, mode, &ss) < 0) + goto fail; + + if (pa_solaris_set_buffer(fd, buffer_size) < 0) + goto fail; + + u = pa_xmalloc(sizeof(struct userdata)); + u->core = m->core; + + u->fd = fd; + + pa_memchunk_reset(&u->memchunk); + + /* We use this to get a reasonable chunk size */ + u->page_size = PA_PAGE_SIZE; + + u->frame_size = pa_frame_size(&ss); + u->buffer_size = buffer_size; + + u->written_bytes = 0; + u->read_bytes = 0; + + u->module = m; + m->userdata = u; + + pa_thread_mq_init(&u->thread_mq, m->core->mainloop); + + u->rtpoll = pa_rtpoll_new(); + pa_rtpoll_item_new_asyncmsgq(u->rtpoll, PA_RTPOLL_EARLY, u->thread_mq.inq); + + pa_rtpoll_set_timer_periodic(u->rtpoll, pa_bytes_to_usec(u->buffer_size / 10, &ss)); + + 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 = fd; + pollfd->events = 0; + pollfd->revents = 0; + + if (mode != O_WRONLY) { + u->source = pa_source_new(m->core, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map); + pa_assert(u->source); + + u->source->userdata = u; + u->source->parent.process_msg = source_process_msg; + + pa_source_set_module(u->source, m); + pa_source_set_description(u->source, t = pa_sprintf_malloc("Solaris PCM on '%s'", p)); + pa_xfree(t); + pa_source_set_asyncmsgq(u->source, u->thread_mq.inq); + pa_source_set_rtpoll(u->source, u->rtpoll); + + u->source->flags = PA_SOURCE_HARDWARE|PA_SOURCE_LATENCY|PA_SOURCE_HW_VOLUME_CTRL; + u->source->refresh_volume = 1; + } else + u->source = NULL; + + if (mode != O_RDONLY) { + u->sink = pa_sink_new(m->core, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map); + pa_assert(u->sink); + + u->sink->userdata = u; + u->sink->parent.process_msg = sink_process_msg; + + pa_sink_set_module(u->sink, m); + pa_sink_set_description(u->sink, t = pa_sprintf_malloc("Solaris PCM on '%s'", p)); + pa_xfree(t); + pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq); + pa_sink_set_rtpoll(u->sink, u->rtpoll); + + u->sink->flags = PA_SINK_HARDWARE|PA_SINK_LATENCY|PA_SINK_HW_VOLUME_CTRL; + u->sink->refresh_volume = 1; + u->sink->refresh_mute = 1; + } else + u->sink = NULL; + + pa_assert(u->source || u->sink); + + u->sig = pa_signal_new(SIGPOLL, sig_callback, u); + pa_assert(u->sig); + ioctl(u->fd, I_SETSIG, S_MSG); + + if (!(u->thread = pa_thread_new(thread_func, u))) { + pa_log("Failed to create thread."); + goto fail; + } + + /* Read mixer settings */ + if (u->source) + pa_asyncmsgq_send(u->thread_mq.inq, PA_MSGOBJECT(u->source), PA_SOURCE_MESSAGE_GET_VOLUME, &u->source->volume, 0, NULL); + if (u->sink) { + pa_asyncmsgq_send(u->thread_mq.inq, PA_MSGOBJECT(u->sink), PA_SINK_MESSAGE_GET_VOLUME, &u->sink->volume, 0, NULL); + pa_asyncmsgq_send(u->thread_mq.inq, PA_MSGOBJECT(u->sink), PA_SINK_MESSAGE_GET_MUTE, &u->sink->muted, 0, NULL); + } + + if (u->sink) + pa_sink_put(u->sink); + if (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; + + 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); + + pa_xfree(u); +} |