+++ /dev/null
-/* $Id$ */
-
-/***
- 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 <config.h>
-#endif
-
-#include <sys/soundcard.h>
-#include <sys/ioctl.h>
-#include <stdlib.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#include <assert.h>
-#include <errno.h>
-#include <string.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <limits.h>
-
-#include "iochannel.h"
-#include "sink.h"
-#include "source.h"
-#include "module.h"
-#include "oss-util.h"
-#include "sample-util.h"
-#include "util.h"
-#include "modargs.h"
-#include "xmalloc.h"
-#include "log.h"
-#include "module-oss-symdef.h"
-
-PA_MODULE_AUTHOR("Lennart Poettering")
-PA_MODULE_DESCRIPTION("OSS 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> fragments=<number of fragments> fragment_size=<fragment size>")
-
-struct userdata {
- pa_sink *sink;
- pa_source *source;
- pa_iochannel *io;
- pa_core *core;
-
- pa_memchunk memchunk, silence;
-
- uint32_t in_fragment_size, out_fragment_size, sample_size;
- int use_getospace, use_getispace;
-
- int fd;
- pa_module *module;
-};
-
-static const char* const valid_modargs[] = {
- "sink_name",
- "source_name",
- "device",
- "record",
- "playback",
- "fragments",
- "fragment_size",
- "format",
- "rate",
- "channels",
- NULL
-};
-
-#define DEFAULT_SINK_NAME "oss_output"
-#define DEFAULT_SOURCE_NAME "oss_input"
-#define DEFAULT_DEVICE "/dev/dsp"
-
-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) {
- pa_memchunk *memchunk;
- ssize_t r;
- size_t l;
- int loop = 0;
-
- assert(u);
-
- if (!u->sink || !pa_iochannel_is_writable(u->io))
- return;
-
- update_usage(u);
-
- l = u->out_fragment_size;
-
- if (u->use_getospace) {
- audio_buf_info info;
-
- if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0)
- u->use_getospace = 0;
- else {
- if (info.bytes/l > 0) {
- l = (info.bytes/l)*l;
- loop = 1;
- }
- }
- }
-
- do {
- memchunk = &u->memchunk;
-
- if (!memchunk->length)
- if (pa_sink_render(u->sink, l, memchunk) < 0)
- memchunk = &u->silence;
-
- assert(memchunk->memblock);
- assert(memchunk->memblock->data);
- assert(memchunk->length);
-
- if ((r = pa_iochannel_write(u->io, (uint8_t*) memchunk->memblock->data + memchunk->index, memchunk->length)) < 0) {
- pa_log(__FILE__": write() failed: %s\n", strerror(errno));
- break;
- }
-
- 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;
- }
- }
-
- l = l > (size_t) r ? l - r : 0;
- } while (loop && l > 0);
-}
-
-static void do_read(struct userdata *u) {
- pa_memchunk memchunk;
- ssize_t r;
- size_t l;
- int loop = 0;
- assert(u);
-
- if (!u->source || !pa_iochannel_is_readable(u->io) || !pa_idxset_size(u->source->outputs))
- return;
-
- update_usage(u);
-
- l = u->in_fragment_size;
-
- if (u->use_getispace) {
- audio_buf_info info;
-
- if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0)
- u->use_getispace = 0;
- else {
- if (info.bytes/l > 0) {
- l = (info.bytes/l)*l;
- loop = 1;
- }
- }
- }
-
- do {
- 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));
- break;
- }
-
- 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);
-
- l = l > (size_t) r ? l - r : 0;
- } while (loop && l > 0);
-}
-
-static void io_callback(PA_GCC_UNUSED pa_iochannel *io, void*userdata) {
- struct userdata *u = userdata;
- assert(u);
- do_write(u);
- do_read(u);
-}
-
-static void source_notify_cb(pa_source *s) {
- struct userdata *u = s->userdata;
- assert(u);
- do_read(u);
-}
-
-static pa_usec_t sink_get_latency_cb(pa_sink *s) {
- pa_usec_t r = 0;
- int arg;
- struct userdata *u = s->userdata;
- assert(s && u && u->sink);
-
- if (ioctl(u->fd, SNDCTL_DSP_GETODELAY, &arg) < 0) {
- pa_log_info(__FILE__": device doesn't support SNDCTL_DSP_GETODELAY: %s\n", strerror(errno));
- s->get_latency = NULL;
- return 0;
- }
-
- r += pa_bytes_to_usec(arg, &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) {
- struct userdata *u = s->userdata;
- audio_buf_info info;
- assert(s && u && u->source);
-
- if (!u->use_getispace)
- return 0;
-
- if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
- u->use_getispace = 0;
- return 0;
- }
-
- if (info.bytes <= 0)
- return 0;
-
- return pa_bytes_to_usec(info.bytes, &s->sample_spec);
-}
-
-static int sink_get_hw_volume(pa_sink *s) {
- struct userdata *u = s->userdata;
- char cv[PA_CVOLUME_SNPRINT_MAX];
- unsigned vol;
-
- if (ioctl(u->fd, SOUND_MIXER_READ_PCM, &vol) < 0) {
- pa_log_info(__FILE__": device doesn't support reading mixer settings: %s\n", strerror(errno));
- s->get_hw_volume = NULL;
- return -1;
- }
-
- s->hw_volume.values[0] = ((vol & 0xFF) * PA_VOLUME_NORM) / 100;
-
- if ((s->hw_volume.channels = s->sample_spec.channels) >= 2)
- s->hw_volume.values[1] = (((vol >> 8) & 0xFF) * PA_VOLUME_NORM) / 100;
-
- pa_log_info(__FILE__": Read mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), &s->hw_volume));
- return 0;
-}
-
-static int sink_set_hw_volume(pa_sink *s) {
- struct userdata *u = s->userdata;
- char cv[PA_CVOLUME_SNPRINT_MAX];
- unsigned vol;
-
- vol = (s->hw_volume.values[0]*100)/PA_VOLUME_NORM;
-
- if (s->sample_spec.channels >= 2)
- vol |= ((s->hw_volume.values[1]*100)/PA_VOLUME_NORM) << 8;
-
- if (ioctl(u->fd, SOUND_MIXER_WRITE_PCM, &vol) < 0) {
- pa_log_info(__FILE__": device doesn't support writing mixer settings: %s\n", strerror(errno));
- s->set_hw_volume = NULL;
- return -1;
- }
-
- pa_log_info(__FILE__": Wrote mixer settings: %s\n", pa_cvolume_snprint(cv, sizeof(cv), &s->hw_volume));
- return 0;
-}
-
-int pa__init(pa_core *c, pa_module*m) {
- struct audio_buf_info info;
- struct userdata *u = NULL;
- const char *p;
- int fd = -1;
- int nfrags, frag_size, in_frag_size, out_frag_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));
-
- nfrags = 12;
- frag_size = 1024;
- if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
- pa_log(__FILE__": failed to parse fragments arguments\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 = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, NULL)) < 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 (nfrags >= 2 && frag_size >= 1)
- if (pa_oss_set_fragments(fd, nfrags, frag_size) < 0)
- goto fail;
-
- if (pa_oss_auto_format(fd, &ss) < 0)
- goto fail;
-
- if (ioctl(fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) {
- pa_log(__FILE__": SNDCTL_DSP_GETBLKSIZE: %s\n", strerror(errno));
- goto fail;
- }
- assert(frag_size);
- in_frag_size = out_frag_size = frag_size;
-
- u = pa_xmalloc(sizeof(struct userdata));
- u->core = c;
- u->use_getospace = u->use_getispace = 0;
-
- if (ioctl(fd, SNDCTL_DSP_GETISPACE, &info) >= 0) {
- pa_log_info(__FILE__": input -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
- in_frag_size = info.fragsize;
- u->use_getispace = 1;
- }
-
- if (ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) {
- pa_log_info(__FILE__": output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
- out_frag_size = info.fragsize;
- u->use_getospace = 1;
- }
-
- 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->notify = source_notify_cb;
- u->source->get_latency = source_get_latency_cb;
- pa_source_set_owner(u->source, m);
- u->source->description = pa_sprintf_malloc("Open Sound System 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->get_hw_volume = sink_get_hw_volume;
- u->sink->set_hw_volume = sink_set_hw_volume;
- u->sink->userdata = u;
- pa_sink_set_owner(u->sink, m);
- u->sink->description = pa_sprintf_malloc("Open Sound System 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 : -1);
- 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->out_fragment_size = out_frag_size;
- u->in_fragment_size = in_frag_size;
- u->silence.memblock = pa_memblock_new(u->silence.length = u->out_fragment_size, u->core->memblock_stat);
- assert(u->silence.memblock);
- pa_silence_memblock(u->silence.memblock, &ss);
- u->silence.index = 0;
-
- u->module = m;
- m->userdata = u;
-
- pa_modargs_free(ma);
-
- /*
- * Some crappy drivers do not start the recording until we read something.
- * Without this snippet, poll will never register the fd as ready.
- */
- if (u->source) {
- char buf[u->sample_size];
- read(u->fd, buf, u->sample_size);
- }
-
- /* Read mixer settings */
- if (u->sink)
- sink_get_hw_volume(u->sink);
-
- 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;
-
- 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);
-}