diff options
Diffstat (limited to 'src/modules/module-oss.c')
| -rw-r--r-- | src/modules/module-oss.c | 520 |
1 files changed, 0 insertions, 520 deletions
diff --git a/src/modules/module-oss.c b/src/modules/module-oss.c deleted file mode 100644 index cde7f311..00000000 --- a/src/modules/module-oss.c +++ /dev/null @@ -1,520 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of PulseAudio. - - 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 <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 <pulse/xmalloc.h> - -#include <pulsecore/core-error.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 "oss-util.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> " - "channel_map=<channel map>") - -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", - "channel_map", - 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", pa_cstrerror(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", pa_cstrerror(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", pa_cstrerror(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; - - if (pa_oss_get_pcm_volume(u->fd, &s->sample_spec, &s->hw_volume) < 0) { - pa_log_info(__FILE__": device doesn't support reading mixer settings: %s", pa_cstrerror(errno)); - s->get_hw_volume = NULL; - return -1; - } - - return 0; -} - -static int sink_set_hw_volume(pa_sink *s) { - struct userdata *u = s->userdata; - - if (pa_oss_set_pcm_volume(u->fd, &s->sample_spec, &s->hw_volume) < 0) { - pa_log_info(__FILE__": device doesn't support writing mixer settings: %s", pa_cstrerror(errno)); - s->set_hw_volume = NULL; - return -1; - } - - return 0; -} - -static int source_get_hw_volume(pa_source *s) { - struct userdata *u = s->userdata; - - if (pa_oss_get_input_volume(u->fd, &s->sample_spec, &s->hw_volume) < 0) { - pa_log_info(__FILE__": device doesn't support reading mixer settings: %s", pa_cstrerror(errno)); - s->get_hw_volume = NULL; - return -1; - } - - return 0; -} - -static int source_set_hw_volume(pa_source *s) { - struct userdata *u = s->userdata; - - if (pa_oss_set_input_volume(u->fd, &s->sample_spec, &s->hw_volume) < 0) { - pa_log_info(__FILE__": device doesn't support writing mixer settings: %s", pa_cstrerror(errno)); - s->set_hw_volume = NULL; - return -1; - } - - 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_channel_map map; - pa_modargs *ma = NULL; - char hwdesc[64]; - - assert(c); - assert(m); - - if (!(ma = pa_modargs_new(m->argument, valid_modargs))) { - pa_log(__FILE__": 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(__FILE__": record= and playback= expect numeric argument."); - goto fail; - } - - if (!playback && !record) { - pa_log(__FILE__": neither playback nor record enabled for device."); - goto fail; - } - - mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0)); - - ss = c->default_sample_spec; - if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_OSS) < 0) { - pa_log(__FILE__": failed to parse sample specification or channel map"); - goto fail; - } - - /* Fix latency to 100ms */ - nfrags = 12; - frag_size = pa_bytes_per_second(&ss)/128; - - 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"); - goto fail; - } - - if ((fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, NULL)) < 0) - goto fail; - - if (pa_oss_get_hw_description(p, hwdesc, sizeof(hwdesc)) >= 0) - pa_log_info(__FILE__": hardware name is '%s'.", hwdesc); - else - hwdesc[0] = 0; - - pa_log_info(__FILE__": device opened in %s mode.", 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", pa_cstrerror(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.", 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.", info.fragstotal, info.fragsize); - out_frag_size = info.fragsize; - u->use_getospace = 1; - } - - if (mode != O_WRONLY) { - if (!(u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map))) - goto fail; - - u->source->userdata = u; - u->source->notify = source_notify_cb; - u->source->get_latency = source_get_latency_cb; - u->source->get_hw_volume = source_get_hw_volume; - u->source->set_hw_volume = source_set_hw_volume; - pa_source_set_owner(u->source, m); - u->source->description = pa_sprintf_malloc("Open Sound System PCM on '%s'%s%s%s", - p, - hwdesc[0] ? " (" : "", - hwdesc[0] ? hwdesc : "", - hwdesc[0] ? ")" : ""); - u->source->is_hardware = 1; - } else - u->source = NULL; - - if (mode != O_RDONLY) { - if (!(u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map))) - goto fail; - - 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'%s%s%s", - p, - hwdesc[0] ? " (" : "", - hwdesc[0] ? hwdesc : "", - hwdesc[0] ? ")" : ""); - u->sink->is_hardware = 1; - } 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 = pa_xnew(char, u->sample_size); - pa_read(u->fd, buf, u->sample_size, NULL); - pa_xfree(buf); - } - - /* Read mixer settings */ - if (u->source) - source_get_hw_volume(u->source); - 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); - assert(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); -} |