From e205b25d65ccb380fa158711e24d55b6de5d9bc1 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Thu, 16 Feb 2006 19:19:58 +0000 Subject: Reorganised the source tree. We now have src/ with a couple of subdirs: * daemon/ - Contains the files specific to the polypaudio daemon. * modules/ - All loadable modules. * polyp/ - Files that are part of the public, application interface or are only used in libpolyp. * polypcore/ - All other shared files. * tests/ - Test programs. * utils/ - Utility programs. git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@487 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/modules/module-solaris.c | 488 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 488 insertions(+) create mode 100644 src/modules/module-solaris.c (limited to 'src/modules/module-solaris.c') diff --git a/src/modules/module-solaris.c b/src/modules/module-solaris.c new file mode 100644 index 00000000..e0745fc0 --- /dev/null +++ b/src/modules/module-solaris.c @@ -0,0 +1,488 @@ +/* $Id$ */ + +/*** + This file is part of polypaudio. + + polypaudio 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. + + polypaudio 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 polypaudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#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= source_name= device= record= playback= format= channels= rate= buffer_size=") + +struct userdata { + pa_sink *sink; + pa_source *source; + pa_iochannel *io; + pa_core *core; + pa_signal_event *sig; + + pa_memchunk memchunk, silence; + + uint32_t sample_size; + uint32_t buffer_size; + unsigned int written_bytes, read_bytes; + + int fd; + pa_module *module; +}; + +static const char* const valid_modargs[] = { + "sink_name", + "source_name", + "device", + "record", + "playback", + "buffer_size", + "format", + "rate", + "channels", + NULL +}; + +#define DEFAULT_SINK_NAME "solaris_output" +#define DEFAULT_SOURCE_NAME "solaris_input" +#define DEFAULT_DEVICE "/dev/audio" + +#define CHUNK_SIZE 2048 + +static void update_usage(struct userdata *u) { + pa_module_set_used(u->module, + (u->sink ? pa_idxset_size(u->sink->inputs) : 0) + + (u->sink ? pa_idxset_size(u->sink->monitor_source->outputs) : 0) + + (u->source ? pa_idxset_size(u->source->outputs) : 0)); +} + +static void do_write(struct userdata *u) { + audio_info_t info; + int err; + pa_memchunk *memchunk; + size_t len; + ssize_t r; + + assert(u); + + if (!u->sink || !pa_iochannel_is_writable(u->io)) + return; + + update_usage(u); + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + 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->sample_size); + + /* + * Do not fill more than half the buffer in one chunk since we only + * get notifications upon completion of entire chunks. + */ + if (len > (u->buffer_size / 2)) + len = u->buffer_size / 2; + + if (len < u->sample_size) + return; + + memchunk = &u->memchunk; + + if (!memchunk->length) + if (pa_sink_render(u->sink, len, memchunk) < 0) + memchunk = &u->silence; + + assert(memchunk->memblock); + assert(memchunk->memblock->data); + assert(memchunk->length); + + if (memchunk->length < len) + len = memchunk->length; + + if ((r = pa_iochannel_write(u->io, (uint8_t*) memchunk->memblock->data + memchunk->index, len)) < 0) { + pa_log(__FILE__": write() failed: %s\n", strerror(errno)); + return; + } + + if (memchunk == &u->silence) + assert(r % u->sample_size == 0); + else { + u->memchunk.index += r; + u->memchunk.length -= r; + + if (u->memchunk.length <= 0) { + pa_memblock_unref(u->memchunk.memblock); + u->memchunk.memblock = NULL; + } + } + + u->written_bytes += r; + + /* + * Write 0 bytes which will generate a SIGPOLL when "played". + */ + if (write(u->fd, NULL, 0) < 0) { + pa_log(__FILE__": write() failed: %s\n", strerror(errno)); + return; + } +} + +static void do_read(struct userdata *u) { + pa_memchunk memchunk; + int err, l; + ssize_t r; + assert(u); + + if (!u->source || !pa_iochannel_is_readable(u->io)) + return; + + update_usage(u); + + err = ioctl(u->fd, I_NREAD, &l); + assert(err >= 0); + + memchunk.memblock = pa_memblock_new(l, u->core->memblock_stat); + assert(memchunk.memblock); + if ((r = pa_iochannel_read(u->io, memchunk.memblock->data, memchunk.memblock->length)) < 0) { + pa_memblock_unref(memchunk.memblock); + if (errno != EAGAIN) + pa_log(__FILE__": read() failed: %s\n", strerror(errno)); + return; + } + + assert(r <= (ssize_t) memchunk.memblock->length); + memchunk.length = memchunk.memblock->length = r; + memchunk.index = 0; + + pa_source_post(u->source, &memchunk); + pa_memblock_unref(memchunk.memblock); + + u->read_bytes += r; +} + +static void io_callback(pa_iochannel *io, void*userdata) { + struct userdata *u = userdata; + assert(u); + do_write(u); + do_read(u); +} + +void sig_callback(pa_mainloop_api *api, pa_signal_event*e, int sig, void *userdata) { + struct userdata *u = userdata; + assert(u); + do_write(u); +} + +static pa_usec_t sink_get_latency_cb(pa_sink *s) { + pa_usec_t r = 0; + audio_info_t info; + int err; + struct userdata *u = s->userdata; + assert(s && u && u->sink); + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + assert(err >= 0); + + r += pa_bytes_to_usec(u->written_bytes, &s->sample_spec); + r -= pa_bytes_to_usec(info.play.samples * u->sample_size, &s->sample_spec); + + if (u->memchunk.memblock) + r += pa_bytes_to_usec(u->memchunk.length, &s->sample_spec); + + return r; +} + +static pa_usec_t source_get_latency_cb(pa_source *s) { + pa_usec_t r = 0; + struct userdata *u = s->userdata; + audio_info_t info; + int err; + assert(s && u && u->source); + + err = ioctl(u->fd, AUDIO_GETINFO, &info); + assert(err >= 0); + + r += pa_bytes_to_usec(info.record.samples * u->sample_size, &s->sample_spec); + r -= pa_bytes_to_usec(u->read_bytes, &s->sample_spec); + + return r; +} + +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(__FILE__": AUDIO_SETINFO: Unsupported sample format.\n"); + else + pa_log(__FILE__": AUDIO_SETINFO: %s\n", strerror(errno)); + return -1; + } + + return 0; +} + +static int pa_solaris_set_buffer(int fd, int buffer_size) { + audio_info_t info; + + AUDIO_INITINFO(&info); + + info.record.buffer_size = buffer_size; + + if (ioctl(fd, AUDIO_SETINFO, &info) < 0) { + if (errno == EINVAL) + pa_log(__FILE__": AUDIO_SETINFO: Unsupported buffer size.\n"); + else + pa_log(__FILE__": AUDIO_SETINFO: %s\n", strerror(errno)); + return -1; + } + + return 0; +} + +int pa__init(pa_core *c, 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_modargs *ma = NULL; + assert(c && m); + + if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { + pa_log(__FILE__": failed to parse module arguments.\n"); + goto fail; + } + + if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) { + pa_log(__FILE__": record= and playback= expect numeric argument.\n"); + goto fail; + } + + if (!playback && !record) { + pa_log(__FILE__": neither playback nor record enabled for device.\n"); + 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(__FILE__": failed to parse buffer size argument\n"); + goto fail; + } + + ss = c->default_sample_spec; + if (pa_modargs_get_sample_spec(ma, &ss) < 0) { + pa_log(__FILE__": failed to parse sample specification\n"); + goto fail; + } + + if ((fd = open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), mode | O_NONBLOCK)) < 0) + goto fail; + + pa_log_info(__FILE__": device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR")); + + if (pa_solaris_auto_format(fd, mode, &ss) < 0) + goto fail; + + if ((mode != O_WRONLY) && (buffer_size >= 1)) + if (pa_solaris_set_buffer(fd, buffer_size) < 0) + goto fail; + + u = pa_xmalloc(sizeof(struct userdata)); + u->core = c; + + if (mode != O_WRONLY) { + u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, NULL); + assert(u->source); + u->source->userdata = u; + u->source->get_latency = source_get_latency_cb; + pa_source_set_owner(u->source, m); + u->source->description = pa_sprintf_malloc("Solaris PCM on '%s'", p); + } else + u->source = NULL; + + if (mode != O_RDONLY) { + u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, NULL); + assert(u->sink); + u->sink->get_latency = sink_get_latency_cb; + u->sink->userdata = u; + pa_sink_set_owner(u->sink, m); + u->sink->description = pa_sprintf_malloc("Solaris PCM on '%s'", p); + } else + u->sink = NULL; + + assert(u->source || u->sink); + + u->io = pa_iochannel_new(c->mainloop, u->source ? fd : -1, u->sink ? fd : 0); + assert(u->io); + pa_iochannel_set_callback(u->io, io_callback, u); + u->fd = fd; + + u->memchunk.memblock = NULL; + u->memchunk.length = 0; + u->sample_size = pa_frame_size(&ss); + u->buffer_size = buffer_size; + + u->silence.memblock = pa_memblock_new(u->silence.length = CHUNK_SIZE, u->core->memblock_stat); + assert(u->silence.memblock); + pa_silence_memblock(u->silence.memblock, &ss); + u->silence.index = 0; + + u->written_bytes = 0; + u->read_bytes = 0; + + u->module = m; + m->userdata = u; + + u->sig = pa_signal_new(SIGPOLL, sig_callback, u); + assert(u->sig); + ioctl(u->fd, I_SETSIG, S_MSG); + + pa_modargs_free(ma); + + return 0; + +fail: + if (fd >= 0) + close(fd); + + if (ma) + pa_modargs_free(ma); + + return -1; +} + +void pa__done(pa_core *c, pa_module*m) { + struct userdata *u; + assert(c && m); + + if (!(u = m->userdata)) + return; + + ioctl(u->fd, I_SETSIG, 0); + pa_signal_free(u->sig); + + if (u->memchunk.memblock) + pa_memblock_unref(u->memchunk.memblock); + if (u->silence.memblock) + pa_memblock_unref(u->silence.memblock); + + if (u->sink) { + pa_sink_disconnect(u->sink); + pa_sink_unref(u->sink); + } + + if (u->source) { + pa_source_disconnect(u->source); + pa_source_unref(u->source); + } + + pa_iochannel_free(u->io); + pa_xfree(u); +} -- cgit