From c7fff97782bb59815e7ebd38895cc1480719e24c Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Thu, 15 Jan 2009 21:02:01 +0100 Subject: move alsa and oss modules into their own subdirectories --- src/modules/module-oss.c | 1536 ---------------------------------------------- 1 file changed, 1536 deletions(-) delete mode 100644 src/modules/module-oss.c (limited to 'src/modules/module-oss.c') diff --git a/src/modules/module-oss.c b/src/modules/module-oss.c deleted file mode 100644 index 23a32549..00000000 --- a/src/modules/module-oss.c +++ /dev/null @@ -1,1536 +0,0 @@ -/*** - This file is part of PulseAudio. - - Copyright 2004-2006 Lennart Poettering - Copyright 2006 Pierre Ossman 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. -***/ - -/* General power management rules: - * - * When SUSPENDED we close the audio device. - * - * We make no difference between IDLE and RUNNING in our handling. - * - * As long as we are in RUNNING/IDLE state we will *always* write data to - * the device. If none is avilable from the inputs, we write silence - * instead. - * - * If power should be saved on IDLE module-suspend-on-idle should be used. - * - */ - -#ifdef HAVE_CONFIG_H -#include -#endif - -#ifdef HAVE_SYS_MMAN_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 - -#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_LOAD_ONCE(FALSE); -PA_MODULE_USAGE( - "sink_name= " - "source_name= " - "device= " - "record= " - "playback= " - "format= " - "channels= " - "rate= " - "fragments= " - "fragment_size= " - "channel_map= " - "mmap="); - -#define DEFAULT_DEVICE "/dev/dsp" - -struct userdata { - pa_core *core; - pa_module *module; - pa_sink *sink; - pa_source *source; - - pa_thread *thread; - pa_thread_mq thread_mq; - pa_rtpoll *rtpoll; - - char *device_name; - - pa_memchunk memchunk; - - size_t frame_size; - uint32_t in_fragment_size, out_fragment_size, in_nfrags, out_nfrags, in_hwbuf_size, out_hwbuf_size; - pa_bool_t use_getospace, use_getispace; - pa_bool_t use_getodelay; - - pa_bool_t sink_suspended, source_suspended; - - int fd; - int mode; - - int mixer_fd; - int mixer_devmask; - - int nfrags, frag_size; - - pa_bool_t use_mmap; - unsigned out_mmap_current, in_mmap_current; - void *in_mmap, *out_mmap; - pa_memblock **in_mmap_memblocks, **out_mmap_memblocks; - - int in_mmap_saved_nfrags, out_mmap_saved_nfrags; - - pa_rtpoll_item *rtpoll_item; -}; - -static const char* const valid_modargs[] = { - "sink_name", - "source_name", - "device", - "record", - "playback", - "fragments", - "fragment_size", - "format", - "rate", - "channels", - "channel_map", - "mmap", - NULL -}; - -static void trigger(struct userdata *u, pa_bool_t quick) { - int enable_bits = 0, zero = 0; - - pa_assert(u); - - if (u->fd < 0) - return; - - pa_log_debug("trigger"); - - if (u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) - enable_bits |= PCM_ENABLE_INPUT; - - if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) - enable_bits |= PCM_ENABLE_OUTPUT; - - pa_log_debug("trigger: %i", enable_bits); - - - if (u->use_mmap) { - - if (!quick) - ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &zero); - -#ifdef SNDCTL_DSP_HALT - if (enable_bits == 0) - if (ioctl(u->fd, SNDCTL_DSP_HALT, NULL) < 0) - pa_log_warn("SNDCTL_DSP_HALT: %s", pa_cstrerror(errno)); -#endif - - if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &enable_bits) < 0) - pa_log_warn("SNDCTL_DSP_SETTRIGGER: %s", pa_cstrerror(errno)); - - if (u->sink && !(enable_bits & PCM_ENABLE_OUTPUT)) { - pa_log_debug("clearing playback buffer"); - pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &u->sink->sample_spec); - } - - } else { - - if (enable_bits) - if (ioctl(u->fd, SNDCTL_DSP_POST, NULL) < 0) - pa_log_warn("SNDCTL_DSP_POST: %s", pa_cstrerror(errno)); - - if (!quick) { - /* - * 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 && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) { - uint8_t *buf = pa_xnew(uint8_t, u->in_fragment_size); - pa_read(u->fd, buf, u->in_fragment_size, NULL); - pa_xfree(buf); - } - } - } -} - -static void mmap_fill_memblocks(struct userdata *u, unsigned n) { - pa_assert(u); - pa_assert(u->out_mmap_memblocks); - -/* pa_log("Mmmap writing %u blocks", n); */ - - while (n > 0) { - pa_memchunk chunk; - - if (u->out_mmap_memblocks[u->out_mmap_current]) - pa_memblock_unref_fixed(u->out_mmap_memblocks[u->out_mmap_current]); - - chunk.memblock = u->out_mmap_memblocks[u->out_mmap_current] = - pa_memblock_new_fixed( - u->core->mempool, - (uint8_t*) u->out_mmap + u->out_fragment_size * u->out_mmap_current, - u->out_fragment_size, - 1); - - chunk.length = pa_memblock_get_length(chunk.memblock); - chunk.index = 0; - - pa_sink_render_into_full(u->sink, &chunk); - - u->out_mmap_current++; - while (u->out_mmap_current >= u->out_nfrags) - u->out_mmap_current -= u->out_nfrags; - - n--; - } -} - -static int mmap_write(struct userdata *u) { - struct count_info info; - - pa_assert(u); - pa_assert(u->sink); - -/* pa_log("Mmmap writing..."); */ - - if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) { - pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno)); - return -1; - } - - info.blocks += u->out_mmap_saved_nfrags; - u->out_mmap_saved_nfrags = 0; - - if (info.blocks > 0) - mmap_fill_memblocks(u, (unsigned) info.blocks); - - return info.blocks; -} - -static void mmap_post_memblocks(struct userdata *u, unsigned n) { - pa_assert(u); - pa_assert(u->in_mmap_memblocks); - -/* pa_log("Mmmap reading %u blocks", n); */ - - while (n > 0) { - pa_memchunk chunk; - - if (!u->in_mmap_memblocks[u->in_mmap_current]) { - - chunk.memblock = u->in_mmap_memblocks[u->in_mmap_current] = - pa_memblock_new_fixed( - u->core->mempool, - (uint8_t*) u->in_mmap + u->in_fragment_size*u->in_mmap_current, - u->in_fragment_size, - 1); - - chunk.length = pa_memblock_get_length(chunk.memblock); - chunk.index = 0; - - pa_source_post(u->source, &chunk); - } - - u->in_mmap_current++; - while (u->in_mmap_current >= u->in_nfrags) - u->in_mmap_current -= u->in_nfrags; - - n--; - } -} - -static void mmap_clear_memblocks(struct userdata*u, unsigned n) { - unsigned i = u->in_mmap_current; - - pa_assert(u); - pa_assert(u->in_mmap_memblocks); - - if (n > u->in_nfrags) - n = u->in_nfrags; - - while (n > 0) { - if (u->in_mmap_memblocks[i]) { - pa_memblock_unref_fixed(u->in_mmap_memblocks[i]); - u->in_mmap_memblocks[i] = NULL; - } - - i++; - while (i >= u->in_nfrags) - i -= u->in_nfrags; - - n--; - } -} - -static int mmap_read(struct userdata *u) { - struct count_info info; - pa_assert(u); - pa_assert(u->source); - -/* pa_log("Mmmap reading..."); */ - - if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) { - pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno)); - return -1; - } - -/* pa_log("... %i", info.blocks); */ - - info.blocks += u->in_mmap_saved_nfrags; - u->in_mmap_saved_nfrags = 0; - - if (info.blocks > 0) { - mmap_post_memblocks(u, (unsigned) info.blocks); - mmap_clear_memblocks(u, u->in_nfrags/2); - } - - return info.blocks; -} - -static pa_usec_t mmap_sink_get_latency(struct userdata *u) { - struct count_info info; - size_t bpos, n; - - pa_assert(u); - - if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) { - pa_log("SNDCTL_DSP_GETOPTR: %s", pa_cstrerror(errno)); - return 0; - } - - u->out_mmap_saved_nfrags += info.blocks; - - bpos = ((u->out_mmap_current + (unsigned) u->out_mmap_saved_nfrags) * u->out_fragment_size) % u->out_hwbuf_size; - - if (bpos <= (size_t) info.ptr) - n = u->out_hwbuf_size - ((size_t) info.ptr - bpos); - else - n = bpos - (size_t) info.ptr; - -/* pa_log("n = %u, bpos = %u, ptr = %u, total=%u, fragsize = %u, n_frags = %u\n", n, bpos, (unsigned) info.ptr, total, u->out_fragment_size, u->out_fragments); */ - - return pa_bytes_to_usec(n, &u->sink->sample_spec); -} - -static pa_usec_t mmap_source_get_latency(struct userdata *u) { - struct count_info info; - size_t bpos, n; - - pa_assert(u); - - if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) { - pa_log("SNDCTL_DSP_GETIPTR: %s", pa_cstrerror(errno)); - return 0; - } - - u->in_mmap_saved_nfrags += info.blocks; - bpos = ((u->in_mmap_current + (unsigned) u->in_mmap_saved_nfrags) * u->in_fragment_size) % u->in_hwbuf_size; - - if (bpos <= (size_t) info.ptr) - n = (size_t) info.ptr - bpos; - else - n = u->in_hwbuf_size - bpos + (size_t) info.ptr; - -/* pa_log("n = %u, bpos = %u, ptr = %u, total=%u, fragsize = %u, n_frags = %u\n", n, bpos, (unsigned) info.ptr, total, u->in_fragment_size, u->in_fragments); */ - - return pa_bytes_to_usec(n, &u->source->sample_spec); -} - -static pa_usec_t io_sink_get_latency(struct userdata *u) { - pa_usec_t r = 0; - - pa_assert(u); - - if (u->use_getodelay) { - int arg; - - if (ioctl(u->fd, SNDCTL_DSP_GETODELAY, &arg) < 0) { - pa_log_info("Device doesn't support SNDCTL_DSP_GETODELAY: %s", pa_cstrerror(errno)); - u->use_getodelay = 0; - } else - r = pa_bytes_to_usec((size_t) arg, &u->sink->sample_spec); - - } - - if (!u->use_getodelay && u->use_getospace) { - struct audio_buf_info info; - - if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) { - pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno)); - u->use_getospace = 0; - } else - r = pa_bytes_to_usec((size_t) info.bytes, &u->sink->sample_spec); - } - - if (u->memchunk.memblock) - r += pa_bytes_to_usec(u->memchunk.length, &u->sink->sample_spec); - - return r; -} - - -static pa_usec_t io_source_get_latency(struct userdata *u) { - pa_usec_t r = 0; - - pa_assert(u); - - if (u->use_getispace) { - struct audio_buf_info info; - - if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) { - pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno)); - u->use_getispace = 0; - } else - r = pa_bytes_to_usec((size_t) info.bytes, &u->source->sample_spec); - } - - return r; -} - -static void build_pollfd(struct userdata *u) { - struct pollfd *pollfd; - - pa_assert(u); - pa_assert(u->fd >= 0); - - if (u->rtpoll_item) - pa_rtpoll_item_free(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 suspend(struct userdata *u) { - pa_assert(u); - pa_assert(u->fd >= 0); - - pa_log_info("Suspending..."); - - if (u->out_mmap_memblocks) { - unsigned i; - for (i = 0; i < u->out_nfrags; i++) - if (u->out_mmap_memblocks[i]) { - pa_memblock_unref_fixed(u->out_mmap_memblocks[i]); - u->out_mmap_memblocks[i] = NULL; - } - } - - if (u->in_mmap_memblocks) { - unsigned i; - for (i = 0; i < u->in_nfrags; i++) - if (u->in_mmap_memblocks[i]) { - pa_memblock_unref_fixed(u->in_mmap_memblocks[i]); - u->in_mmap_memblocks[i] = NULL; - } - } - - if (u->in_mmap && u->in_mmap != MAP_FAILED) { - munmap(u->in_mmap, u->in_hwbuf_size); - u->in_mmap = NULL; - } - - if (u->out_mmap && u->out_mmap != MAP_FAILED) { - munmap(u->out_mmap, u->out_hwbuf_size); - u->out_mmap = NULL; - } - - /* Let's suspend */ - ioctl(u->fd, SNDCTL_DSP_SYNC, NULL); - 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..."); - - return 0; -} - -static int sink_get_volume(pa_sink *s); -static int source_get_volume(pa_source *s); - -static int unsuspend(struct userdata *u) { - int m; - pa_sample_spec ss, *ss_original; - int frag_size, in_frag_size, out_frag_size; - int in_nfrags, out_nfrags; - struct audio_buf_info info; - - pa_assert(u); - pa_assert(u->fd < 0); - - m = u->mode; - - pa_log_info("Trying resume..."); - - if ((u->fd = pa_oss_open(u->device_name, &m, NULL)) < 0) { - pa_log_warn("Resume failed, device busy (%s)", pa_cstrerror(errno)); - return -1; - } - - if (m != u->mode) { - pa_log_warn("Resume failed, couldn't open device with original access mode."); - goto fail; - } - - if (u->nfrags >= 2 && u->frag_size >= 1) - if (pa_oss_set_fragments(u->fd, u->nfrags, u->frag_size) < 0) { - pa_log_warn("Resume failed, couldn't set original fragment settings."); - goto fail; - } - - ss = *(ss_original = u->sink ? &u->sink->sample_spec : &u->source->sample_spec); - if (pa_oss_auto_format(u->fd, &ss) < 0 || !pa_sample_spec_equal(&ss, ss_original)) { - pa_log_warn("Resume failed, couldn't set original sample format settings."); - goto fail; - } - - if (ioctl(u->fd, SNDCTL_DSP_GETBLKSIZE, &frag_size) < 0) { - pa_log_warn("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno)); - goto fail; - } - - in_frag_size = out_frag_size = frag_size; - in_nfrags = out_nfrags = u->nfrags; - - if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) >= 0) { - in_frag_size = info.fragsize; - in_nfrags = info.fragstotal; - } - - if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) { - out_frag_size = info.fragsize; - out_nfrags = info.fragstotal; - } - - if ((u->source && (in_frag_size != (int) u->in_fragment_size || in_nfrags != (int) u->in_nfrags)) || - (u->sink && (out_frag_size != (int) u->out_fragment_size || out_nfrags != (int) u->out_nfrags))) { - pa_log_warn("Resume failed, input fragment settings don't match."); - goto fail; - } - - if (u->use_mmap) { - if (u->source) { - if ((u->in_mmap = mmap(NULL, u->in_hwbuf_size, PROT_READ, MAP_SHARED, u->fd, 0)) == MAP_FAILED) { - pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno)); - goto fail; - } - } - - if (u->sink) { - if ((u->out_mmap = mmap(NULL, u->out_hwbuf_size, PROT_WRITE, MAP_SHARED, u->fd, 0)) == MAP_FAILED) { - pa_log("Resume failed, mmap(): %s", pa_cstrerror(errno)); - if (u->in_mmap && u->in_mmap != MAP_FAILED) { - munmap(u->in_mmap, u->in_hwbuf_size); - u->in_mmap = NULL; - } - - goto fail; - } - - pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &ss); - } - } - - u->out_mmap_current = u->in_mmap_current = 0; - u->out_mmap_saved_nfrags = u->in_mmap_saved_nfrags = 0; - - pa_assert(!u->rtpoll_item); - - build_pollfd(u); - - if (u->sink) - sink_get_volume(u->sink); - if (u->source) - source_get_volume(u->source); - - pa_log_info("Resumed successfully..."); - - return 0; - -fail: - pa_close(u->fd); - u->fd = -1; - return -1; -} - -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 ret; - pa_bool_t do_trigger = FALSE, quick = TRUE; - - switch (code) { - - case PA_SINK_MESSAGE_GET_LATENCY: { - pa_usec_t r = 0; - - if (u->fd >= 0) { - if (u->use_mmap) - r = mmap_sink_get_latency(u); - else - r = io_sink_get_latency(u); - } - - *((pa_usec_t*) data) = r; - - return 0; - } - - case PA_SINK_MESSAGE_SET_STATE: - - switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) { - - case PA_SINK_SUSPENDED: - pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state)); - - if (!u->source || u->source_suspended) { - if (suspend(u) < 0) - return -1; - } - - do_trigger = TRUE; - - u->sink_suspended = TRUE; - break; - - case PA_SINK_IDLE: - case PA_SINK_RUNNING: - - if (u->sink->thread_info.state == PA_SINK_INIT) { - do_trigger = TRUE; - quick = u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state); - } - - if (u->sink->thread_info.state == PA_SINK_SUSPENDED) { - - if (!u->source || u->source_suspended) { - if (unsuspend(u) < 0) - return -1; - quick = FALSE; - } - - do_trigger = TRUE; - - u->out_mmap_current = 0; - u->out_mmap_saved_nfrags = 0; - - u->sink_suspended = FALSE; - } - - break; - - case PA_SINK_UNLINKED: - case PA_SINK_INIT: - ; - } - - break; - - } - - ret = pa_sink_process_msg(o, code, data, offset, chunk); - - if (do_trigger) - trigger(u, quick); - - return ret; -} - -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 ret; - int do_trigger = FALSE, quick = TRUE; - - switch (code) { - - case PA_SOURCE_MESSAGE_GET_LATENCY: { - pa_usec_t r = 0; - - if (u->fd >= 0) { - if (u->use_mmap) - r = mmap_source_get_latency(u); - else - r = io_source_get_latency(u); - } - - *((pa_usec_t*) data) = r; - return 0; - } - - case PA_SOURCE_MESSAGE_SET_STATE: - - switch ((pa_source_state_t) PA_PTR_TO_UINT(data)) { - case PA_SOURCE_SUSPENDED: - pa_assert(PA_SOURCE_IS_OPENED(u->source->thread_info.state)); - - if (!u->sink || u->sink_suspended) { - if (suspend(u) < 0) - return -1; - } - - do_trigger = TRUE; - - u->source_suspended = TRUE; - break; - - case PA_SOURCE_IDLE: - case PA_SOURCE_RUNNING: - - if (u->source->thread_info.state == PA_SOURCE_INIT) { - do_trigger = TRUE; - quick = u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state); - } - - if (u->source->thread_info.state == PA_SOURCE_SUSPENDED) { - - if (!u->sink || u->sink_suspended) { - if (unsuspend(u) < 0) - return -1; - quick = FALSE; - } - - do_trigger = TRUE; - - u->in_mmap_current = 0; - u->in_mmap_saved_nfrags = 0; - - u->source_suspended = FALSE; - } - break; - - case PA_SOURCE_UNLINKED: - case PA_SOURCE_INIT: - ; - - } - break; - - } - - ret = pa_source_process_msg(o, code, data, offset, chunk); - - if (do_trigger) - trigger(u, quick); - - return ret; -} - -static int sink_get_volume(pa_sink *s) { - struct userdata *u; - int r; - - pa_assert_se(u = s->userdata); - - pa_assert(u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM)); - - if (u->mixer_devmask & SOUND_MASK_VOLUME) - if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_VOLUME, &s->sample_spec, &s->volume)) >= 0) - return r; - - if (u->mixer_devmask & SOUND_MASK_PCM) - if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_PCM, &s->sample_spec, &s->volume)) >= 0) - return r; - - pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno)); - return -1; -} - -static int sink_set_volume(pa_sink *s) { - struct userdata *u; - int r; - - pa_assert_se(u = s->userdata); - - pa_assert(u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM)); - - if (u->mixer_devmask & SOUND_MASK_VOLUME) - if ((r = pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_VOLUME, &s->sample_spec, &s->volume)) >= 0) - return r; - - if (u->mixer_devmask & SOUND_MASK_PCM) - if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_WRITE_PCM, &s->sample_spec, &s->volume)) >= 0) - return r; - - pa_log_info("Device doesn't support writing mixer settings: %s", pa_cstrerror(errno)); - return -1; -} - -static int source_get_volume(pa_source *s) { - struct userdata *u; - int r; - - pa_assert_se(u = s->userdata); - - pa_assert(u->mixer_devmask & (SOUND_MASK_IGAIN|SOUND_MASK_RECLEV)); - - if (u->mixer_devmask & SOUND_MASK_IGAIN) - if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_IGAIN, &s->sample_spec, &s->volume)) >= 0) - return r; - - if (u->mixer_devmask & SOUND_MASK_RECLEV) - if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_READ_RECLEV, &s->sample_spec, &s->volume)) >= 0) - return r; - - pa_log_info("Device doesn't support reading mixer settings: %s", pa_cstrerror(errno)); - return -1; -} - -static int source_set_volume(pa_source *s) { - struct userdata *u; - int r; - - pa_assert_se(u = s->userdata); - - pa_assert(u->mixer_devmask & (SOUND_MASK_IGAIN|SOUND_MASK_RECLEV)); - - if (u->mixer_devmask & SOUND_MASK_IGAIN) - if ((r = pa_oss_set_volume(u->mixer_fd, SOUND_MIXER_WRITE_IGAIN, &s->sample_spec, &s->volume)) >= 0) - return r; - - if (u->mixer_devmask & SOUND_MASK_RECLEV) - if ((r = pa_oss_get_volume(u->mixer_fd, SOUND_MIXER_WRITE_RECLEV, &s->sample_spec, &s->volume)) >= 0) - return r; - - pa_log_info("Device doesn't support writing mixer settings: %s", pa_cstrerror(errno)); - return -1; -} - -static void thread_func(void *userdata) { - struct userdata *u = userdata; - int write_type = 0, read_type = 0; - short revents = 0; - - pa_assert(u); - - pa_log_debug("Thread starting up"); - - if (u->core->realtime_scheduling) - pa_make_realtime(u->core->realtime_priority); - - pa_thread_mq_install(&u->thread_mq); - pa_rtpoll_install(u->rtpoll); - - for (;;) { - int ret; - -/* pa_log("loop"); */ - - if (PA_SINK_IS_OPENED(u->sink->thread_info.state)) - if (u->sink->thread_info.rewind_requested) - pa_sink_process_rewind(u->sink, 0); - - /* Render some data and write it to the dsp */ - - if (u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state) && ((revents & POLLOUT) || u->use_mmap || u->use_getospace)) { - - if (u->use_mmap) { - - if ((ret = mmap_write(u)) < 0) - goto fail; - - revents &= ~POLLOUT; - - if (ret > 0) - continue; - - } else { - ssize_t l; - pa_bool_t loop = FALSE, work_done = FALSE; - - l = (ssize_t) u->out_fragment_size; - - if (u->use_getospace) { - audio_buf_info info; - - if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) { - pa_log_info("Device doesn't support SNDCTL_DSP_GETOSPACE: %s", pa_cstrerror(errno)); - u->use_getospace = FALSE; - } else { - l = info.bytes; - - /* We loop only if GETOSPACE worked and we - * actually *know* that we can write more than - * one fragment at a time */ - loop = TRUE; - } - } - - /* Round down to multiples of the fragment size, - * because OSS needs that (at least some versions - * do) */ - l = (l/(ssize_t) u->out_fragment_size) * (ssize_t) u->out_fragment_size; - - /* Hmm, so poll() signalled us that we can read - * something, but GETOSPACE told us there was nothing? - * Hmm, make the best of it, try to read some data, to - * avoid spinning forever. */ - if (l <= 0 && (revents & POLLOUT)) { - l = (ssize_t) u->out_fragment_size; - loop = FALSE; - } - - while (l > 0) { - void *p; - ssize_t t; - - if (u->memchunk.length <= 0) - pa_sink_render(u->sink, (size_t) l, &u->memchunk); - - pa_assert(u->memchunk.length > 0); - - p = pa_memblock_acquire(u->memchunk.memblock); - t = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type); - pa_memblock_release(u->memchunk.memblock); - -/* pa_log("wrote %i bytes of %u", t, l); */ - - pa_assert(t != 0); - - if (t < 0) { - - if (errno == EINTR) - continue; - - else if (errno == EAGAIN) { - pa_log_debug("EAGAIN"); - - revents &= ~POLLOUT; - break; - - } else { - pa_log("Failed to write data to DSP: %s", pa_cstrerror(errno)); - goto fail; - } - - } else { - - u->memchunk.index += (size_t) t; - u->memchunk.length -= (size_t) t; - - if (u->memchunk.length <= 0) { - pa_memblock_unref(u->memchunk.memblock); - pa_memchunk_reset(&u->memchunk); - } - - l -= t; - - revents &= ~POLLOUT; - work_done = TRUE; - } - - if (!loop) - break; - } - - if (work_done) - continue; - } - } - - /* 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) || u->use_mmap || u->use_getispace)) { - - if (u->use_mmap) { - - if ((ret = mmap_read(u)) < 0) - goto fail; - - revents &= ~POLLIN; - - if (ret > 0) - continue; - - } else { - - void *p; - ssize_t l; - pa_memchunk memchunk; - pa_bool_t loop = FALSE, work_done = FALSE; - - l = (ssize_t) u->in_fragment_size; - - if (u->use_getispace) { - audio_buf_info info; - - if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) { - pa_log_info("Device doesn't support SNDCTL_DSP_GETISPACE: %s", pa_cstrerror(errno)); - u->use_getispace = FALSE; - } else { - l = info.bytes; - loop = TRUE; - } - } - - l = (l/(ssize_t) u->in_fragment_size) * (ssize_t) u->in_fragment_size; - - if (l <= 0 && (revents & POLLIN)) { - l = (ssize_t) u->in_fragment_size; - loop = FALSE; - } - - while (l > 0) { - ssize_t t; - size_t k; - - pa_assert(l > 0); - - memchunk.memblock = pa_memblock_new(u->core->mempool, (size_t) -1); - - k = pa_memblock_get_length(memchunk.memblock); - - if (k > (size_t) l) - k = (size_t) l; - - k = (k/u->frame_size)*u->frame_size; - - p = pa_memblock_acquire(memchunk.memblock); - t = pa_read(u->fd, p, k, &read_type); - pa_memblock_release(memchunk.memblock); - - pa_assert(t != 0); /* EOF cannot happen */ - -/* pa_log("read %i bytes of %u", t, l); */ - - if (t < 0) { - pa_memblock_unref(memchunk.memblock); - - if (errno == EINTR) - continue; - - else if (errno == EAGAIN) { - pa_log_debug("EAGAIN"); - - revents &= ~POLLIN; - break; - - } else { - pa_log("Failed to read data from DSP: %s", pa_cstrerror(errno)); - goto fail; - } - - } else { - memchunk.index = 0; - memchunk.length = (size_t) t; - - pa_source_post(u->source, &memchunk); - pa_memblock_unref(memchunk.memblock); - - l -= t; - - revents &= ~POLLIN; - work_done = TRUE; - } - - if (!loop) - break; - } - - if (work_done) - continue; - } - } - -/* pa_log("loop2 revents=%i", revents); */ - - if (u->rtpoll_item) { - struct pollfd *pollfd; - - pa_assert(u->fd >= 0); - - pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL); - pollfd->events = (short) - (((u->source && PA_SOURCE_IS_OPENED(u->source->thread_info.state)) ? POLLIN : 0) | - ((u->sink && PA_SINK_IS_OPENED(u->sink->thread_info.state)) ? POLLOUT : 0)); - } - - /* Hmm, nothing to do. Let's sleep */ - if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 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: - /* If this was no regular exit from the loop we have to continue - * processing messages until we received PA_MESSAGE_SHUTDOWN */ - 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"); -} - -int pa__init(pa_module*m) { - - struct audio_buf_info info; - struct userdata *u = NULL; - const char *dev; - int fd = -1; - int nfrags, frag_size; - int mode, caps; - pa_bool_t record = TRUE, playback = TRUE, use_mmap = TRUE; - pa_sample_spec ss; - pa_channel_map map; - pa_modargs *ma = NULL; - char hwdesc[64]; - const char *name; - pa_bool_t namereg_fail; - pa_sink_new_data sink_new_data; - pa_source_new_data source_new_data; - - 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 boolean 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)); - - ss = m->core->default_sample_spec; - if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_OSS) < 0) { - pa_log("Failed to parse sample specification or channel map"); - goto fail; - } - - nfrags = (int) m->core->default_n_fragments; - frag_size = (int) pa_usec_to_bytes(m->core->default_fragment_size_msec*1000, &ss); - if (frag_size <= 0) - frag_size = (int) pa_frame_size(&ss); - - if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) { - pa_log("Failed to parse fragments arguments"); - goto fail; - } - - if (pa_modargs_get_value_boolean(ma, "mmap", &use_mmap) < 0) { - pa_log("Failed to parse mmap argument."); - goto fail; - } - - if ((fd = pa_oss_open(dev = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0) - goto fail; - - if (use_mmap && (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_TRIGGER))) { - pa_log_info("OSS device not mmap capable, falling back to UNIX read/write mode."); - use_mmap = 0; - } - - if (use_mmap && mode == O_WRONLY) { - pa_log_info("Device opened for playback only, cannot do memory mapping, falling back to UNIX write() mode."); - use_mmap = 0; - } - - if (pa_oss_get_hw_description(dev, hwdesc, sizeof(hwdesc)) >= 0) - pa_log_info("Hardware name is '%s'.", hwdesc); - else - hwdesc[0] = 0; - - pa_log_info("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("SNDCTL_DSP_GETBLKSIZE: %s", pa_cstrerror(errno)); - goto fail; - } - pa_assert(frag_size > 0); - - u = pa_xnew0(struct userdata, 1); - u->core = m->core; - u->module = m; - m->userdata = u; - u->fd = fd; - u->mixer_fd = -1; - u->use_getospace = u->use_getispace = TRUE; - u->use_getodelay = TRUE; - u->mode = mode; - u->frame_size = pa_frame_size(&ss); - u->device_name = pa_xstrdup(dev); - u->in_nfrags = u->out_nfrags = (uint32_t) (u->nfrags = nfrags); - u->out_fragment_size = u->in_fragment_size = (uint32_t) (u->frag_size = frag_size); - u->use_mmap = use_mmap; - u->rtpoll = pa_rtpoll_new(); - pa_thread_mq_init(&u->thread_mq, m->core->mainloop, u->rtpoll); - u->rtpoll_item = NULL; - build_pollfd(u); - - if (ioctl(fd, SNDCTL_DSP_GETISPACE, &info) >= 0) { - pa_log_info("Input -- %u fragments of size %u.", info.fragstotal, info.fragsize); - u->in_fragment_size = (uint32_t) info.fragsize; - u->in_nfrags = (uint32_t) info.fragstotal; - u->use_getispace = TRUE; - } - - if (ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) >= 0) { - pa_log_info("Output -- %u fragments of size %u.", info.fragstotal, info.fragsize); - u->out_fragment_size = (uint32_t) info.fragsize; - u->out_nfrags = (uint32_t) info.fragstotal; - u->use_getospace = TRUE; - } - - u->in_hwbuf_size = u->in_nfrags * u->in_fragment_size; - u->out_hwbuf_size = u->out_nfrags * u->out_fragment_size; - - if (mode != O_WRONLY) { - char *name_buf = NULL; - - if (use_mmap) { - if ((u->in_mmap = mmap(NULL, u->in_hwbuf_size, PROT_READ, MAP_SHARED, fd, 0)) == MAP_FAILED) { - pa_log_warn("mmap(PROT_READ) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno)); - use_mmap = u->use_mmap = FALSE; - u->in_mmap = NULL; - } else - pa_log_debug("Successfully mmap()ed input buffer."); - } - - if ((name = pa_modargs_get_value(ma, "source_name", NULL))) - namereg_fail = TRUE; - else { - name = name_buf = pa_sprintf_malloc("oss_input.%s", pa_path_get_filename(dev)); - 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, dev); - pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_API, "oss"); - pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, hwdesc[0] ? hwdesc : dev); - pa_proplist_sets(source_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, use_mmap ? "mmap" : "serial"); - pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (u->in_hwbuf_size)); - pa_proplist_setf(source_new_data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (u->in_fragment_size)); - - 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->parent.process_msg = source_process_msg; - u->source->userdata = u; - - pa_source_set_asyncmsgq(u->source, u->thread_mq.inq); - pa_source_set_rtpoll(u->source, u->rtpoll); - u->source->refresh_volume = TRUE; - - if (use_mmap) - u->in_mmap_memblocks = pa_xnew0(pa_memblock*, u->in_nfrags); - } - - if (mode != O_RDONLY) { - char *name_buf = NULL; - - if (use_mmap) { - if ((u->out_mmap = mmap(NULL, u->out_hwbuf_size, PROT_WRITE, MAP_SHARED, fd, 0)) == MAP_FAILED) { - if (mode == O_RDWR) { - pa_log_debug("mmap() failed for input. Changing to O_WRONLY mode."); - mode = O_WRONLY; - goto go_on; - } else { - pa_log_warn("mmap(PROT_WRITE) failed, reverting to non-mmap mode: %s", pa_cstrerror(errno)); - u->use_mmap = use_mmap = FALSE; - u->out_mmap = NULL; - } - } else { - pa_log_debug("Successfully mmap()ed output buffer."); - pa_silence_memory(u->out_mmap, u->out_hwbuf_size, &ss); - } - } - - if ((name = pa_modargs_get_value(ma, "sink_name", NULL))) - namereg_fail = TRUE; - else { - name = name_buf = pa_sprintf_malloc("oss_output.%s", pa_path_get_filename(dev)); - 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, dev); - pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_API, "oss"); - pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_DESCRIPTION, hwdesc[0] ? hwdesc : dev); - pa_proplist_sets(sink_new_data.proplist, PA_PROP_DEVICE_ACCESS_MODE, use_mmap ? "mmap" : "serial"); - pa_proplist_setf(sink_new_data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (u->out_hwbuf_size)); - pa_proplist_setf(sink_new_data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (u->out_fragment_size)); - - 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_xfree(name_buf); - - if (!u->sink) { - pa_log("Failed to create sink object"); - goto fail; - } - - u->sink->parent.process_msg = sink_process_msg; - u->sink->userdata = u; - - pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq); - pa_sink_set_rtpoll(u->sink, u->rtpoll); - u->sink->refresh_volume = TRUE; - - u->sink->thread_info.max_request = u->out_hwbuf_size; - - if (use_mmap) - u->out_mmap_memblocks = pa_xnew0(pa_memblock*, u->out_nfrags); - } - - if ((u->mixer_fd = pa_oss_open_mixer_for_device(u->device_name)) >= 0) { - pa_bool_t do_close = TRUE; - u->mixer_devmask = 0; - - if (ioctl(fd, SOUND_MIXER_READ_DEVMASK, &u->mixer_devmask) < 0) - pa_log_warn("SOUND_MIXER_READ_DEVMASK failed: %s", pa_cstrerror(errno)); - - else { - if (u->sink && (u->mixer_devmask & (SOUND_MASK_VOLUME|SOUND_MASK_PCM))) { - pa_log_debug("Found hardware mixer track for playback."); - u->sink->flags |= PA_SINK_HW_VOLUME_CTRL; - u->sink->get_volume = sink_get_volume; - u->sink->set_volume = sink_set_volume; - do_close = FALSE; - } - - if (u->source && (u->mixer_devmask & (SOUND_MASK_RECLEV|SOUND_MASK_IGAIN))) { - pa_log_debug("Found hardware mixer track for recording."); - u->source->flags |= PA_SOURCE_HW_VOLUME_CTRL; - u->source->get_volume = source_get_volume; - u->source->set_volume = source_set_volume; - do_close = FALSE; - } - } - - if (do_close) { - pa_close(u->mixer_fd); - u->mixer_fd = -1; - } - } - -go_on: - - pa_assert(u->source || u->sink); - - pa_memchunk_reset(&u->memchunk); - - if (!(u->thread = pa_thread_new(thread_func, u))) { - pa_log("Failed to create thread."); - goto fail; - } - - /* Read mixer settings */ - if (u->sink) { - if (sink_new_data.volume_is_set) { - if (u->sink->set_volume) - u->sink->set_volume(u->sink); - } else { - if (u->sink->get_volume) - u->sink->get_volume(u->sink); - } - } - - if (u->source) { - if (source_new_data.volume_is_set) { - if (u->source->set_volume) - u->source->set_volume(u->source); - } else { - if (u->source->get_volume) - u->source->get_volume(u->source); - } - } - - 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) - pa_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->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->out_mmap_memblocks) { - unsigned i; - for (i = 0; i < u->out_nfrags; i++) - if (u->out_mmap_memblocks[i]) - pa_memblock_unref_fixed(u->out_mmap_memblocks[i]); - pa_xfree(u->out_mmap_memblocks); - } - - if (u->in_mmap_memblocks) { - unsigned i; - for (i = 0; i < u->in_nfrags; i++) - if (u->in_mmap_memblocks[i]) - pa_memblock_unref_fixed(u->in_mmap_memblocks[i]); - pa_xfree(u->in_mmap_memblocks); - } - - if (u->in_mmap && u->in_mmap != MAP_FAILED) - munmap(u->in_mmap, u->in_hwbuf_size); - - if (u->out_mmap && u->out_mmap != MAP_FAILED) - munmap(u->out_mmap, u->out_hwbuf_size); - - if (u->fd >= 0) - pa_close(u->fd); - - if (u->mixer_fd >= 0) - pa_close(u->mixer_fd); - - pa_xfree(u->device_name); - - pa_xfree(u); -} -- cgit