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authorLennart Poettering <lennart@poettering.net>2004-07-17 14:12:30 +0000
committerLennart Poettering <lennart@poettering.net>2004-07-17 14:12:30 +0000
commit41f6aea8fdbc744c13bc461056a2d694a5c4d06f (patch)
tree1e23911c1f61c66df3fba272af53475508a7a7ce /src/module-oss-mmap.c
parent563201e128d600ec1ae4a33ca81d03b776501f82 (diff)
rename src to polyp
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@90 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/module-oss-mmap.c')
-rw-r--r--src/module-oss-mmap.c404
1 files changed, 0 insertions, 404 deletions
diff --git a/src/module-oss-mmap.c b/src/module-oss-mmap.c
deleted file mode 100644
index 800eaf25..00000000
--- a/src/module-oss-mmap.c
+++ /dev/null
@@ -1,404 +0,0 @@
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio is free software; you can redistribute it and/or modify
- it under the terms of the GNU 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 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 <sys/mman.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"
-
-struct userdata {
- struct pa_sink *sink;
- struct pa_source *source;
- struct pa_core *core;
- struct pa_sample_spec sample_spec;
-
- size_t in_fragment_size, out_fragment_size, in_fragments, out_fragments, out_fill;
-
- int fd;
-
- void *in_mmap, *out_mmap;
- size_t in_mmap_length, out_mmap_length;
-
- void *mainloop_source;
-
- struct pa_memblock **in_memblocks, **out_memblocks;
- unsigned out_current, in_current;
-};
-
-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 out_fill_memblocks(struct userdata *u, unsigned n) {
- assert(u && u->out_memblocks);
-
- while (n > 0) {
- struct pa_memchunk chunk;
-
- if (u->out_memblocks[u->out_current])
- pa_memblock_unref_fixed(u->out_memblocks[u->out_current]);
-
- chunk.memblock = u->out_memblocks[u->out_current] = pa_memblock_new_fixed(u->out_mmap+u->out_fragment_size*u->out_current, u->out_fragment_size);
- assert(chunk.memblock);
- chunk.length = chunk.memblock->length;
- chunk.index = 0;
-
- pa_sink_render_into_full(u->sink, &chunk);
-
- u->out_current++;
- while (u->out_current >= u->out_fragments)
- u->out_current -= u->out_fragments;
-
- n--;
- }
-}
-
-static void do_write(struct userdata *u) {
- struct count_info info;
- assert(u && u->sink);
-
- if (ioctl(u->fd, SNDCTL_DSP_GETOPTR, &info) < 0) {
- fprintf(stderr, "SNDCTL_DSP_GETOPTR: %s\n", strerror(errno));
- return;
- }
-
- u->out_fill = (u->out_fragment_size * u->out_fragments) - (info.ptr % u->out_fragment_size);
-
- if (!info.blocks)
- return;
-
- out_fill_memblocks(u, info.blocks);
-}
-
-static void in_post_memblocks(struct userdata *u, unsigned n) {
- assert(u && u->in_memblocks);
-
- while (n > 0) {
- struct pa_memchunk chunk;
-
- if (!u->in_memblocks[u->in_current]) {
- chunk.memblock = u->in_memblocks[u->in_current] = pa_memblock_new_fixed(u->in_mmap+u->in_fragment_size*u->in_current, u->in_fragment_size);
- chunk.length = chunk.memblock->length;
- chunk.index = 0;
-
- pa_source_post(u->source, &chunk);
- }
-
- u->in_current++;
- while (u->in_current >= u->in_fragments)
- u->in_current -= u->in_fragments;
-
- n--;
- }
-}
-
-static void in_clear_memblocks(struct userdata*u, unsigned n) {
- unsigned i = u->in_current;
- assert(u && u->in_memblocks);
-
- if (n > u->in_fragments)
- n = u->in_fragments;
-
- while (n > 0) {
- if (u->in_memblocks[i]) {
- pa_memblock_unref_fixed(u->in_memblocks[i]);
- u->in_memblocks[i] = NULL;
- }
-
- i++;
- while (i >= u->in_fragments)
- i -= u->in_fragments;
-
- n--;
- }
-}
-
-static void do_read(struct userdata *u) {
- struct count_info info;
- assert(u && u->source);
-
- if (ioctl(u->fd, SNDCTL_DSP_GETIPTR, &info) < 0) {
- fprintf(stderr, "SNDCTL_DSP_GETIPTR: %s\n", strerror(errno));
- return;
- }
-
- if (!info.blocks)
- return;
-
- in_post_memblocks(u, info.blocks);
- in_clear_memblocks(u, u->in_fragments/2);
-};
-
-static void io_callback(struct pa_mainloop_api *m, void *id, int fd, enum pa_mainloop_api_io_events events, void *userdata) {
- struct userdata *u = userdata;
-
- assert (u && u->core->mainloop == m && u->mainloop_source == id);
-
- if (events & PA_MAINLOOP_API_IO_EVENT_INPUT)
- do_read(u);
- if (events & PA_MAINLOOP_API_IO_EVENT_OUTPUT)
- do_write(u);
-}
-
-static uint32_t sink_get_latency_cb(struct pa_sink *s) {
- struct userdata *u = s->userdata;
- assert(s && u);
-
- do_write(u);
- return pa_samples_usec(u->out_fill, &s->sample_spec);
-}
-
-int pa_module_init(struct pa_core *c, struct pa_module*m) {
- struct audio_buf_info info;
- struct userdata *u = NULL;
- const char *p;
- int nfrags, frag_size;
- int mode, caps;
- int enable_bits = 0, zero = 0;
- int playback = 1, record = 1;
- struct pa_modargs *ma = NULL;
- assert(c && m);
-
- m->userdata = u = malloc(sizeof(struct userdata));
- assert(u);
- memset(u, 0, sizeof(struct userdata));
- u->fd = -1;
- u->core = c;
-
- if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
- fprintf(stderr, __FILE__": failed to parse module arguments.\n");
- goto fail;
- }
-
- if (pa_modargs_get_value_u32(ma, "record", &record) < 0 || pa_modargs_get_value_u32(ma, "playback", &playback) < 0) {
- fprintf(stderr, __FILE__": record= and playback= expect numeric arguments.\n");
- goto fail;
- }
-
- mode = (playback&&record) ? O_RDWR : (playback ? O_WRONLY : (record ? O_RDONLY : 0));
- if (mode == 0) {
- fprintf(stderr, __FILE__": neither playback nor record enabled for device.\n");
- goto fail;
- }
-
- nfrags = 12;
- frag_size = 1024;
- if (pa_modargs_get_value_u32(ma, "fragments", &nfrags) < 0 || nfrags < 2 || pa_modargs_get_value_u32(ma, "fragment_size", &frag_size) < 0 || frag_size < 1) {
- fprintf(stderr, __FILE__": failed to parse fragments arguments\n");
- goto fail;
- }
-
- u->sample_spec = c->default_sample_spec;
- if (pa_modargs_get_sample_spec(ma, &u->sample_spec) < 0) {
- fprintf(stderr, __FILE__": failed to parse sample specification\n");
- goto fail;
- }
-
- if ((u->fd = pa_oss_open(p = pa_modargs_get_value(ma, "device", DEFAULT_DEVICE), &mode, &caps)) < 0)
- goto fail;
-
- if (!(caps & DSP_CAP_MMAP) || !(caps & DSP_CAP_REALTIME) || !(caps & DSP_CAP_TRIGGER)) {
- fprintf(stderr, "OSS device not mmap capable.\n");
- goto fail;
- }
-
- fprintf(stderr, "module-oss: device opened in %s mode.\n", mode == O_WRONLY ? "O_WRONLY" : (mode == O_RDONLY ? "O_RDONLY" : "O_RDWR"));
-
- if (pa_oss_set_fragments(u->fd, nfrags, frag_size) < 0)
- goto fail;
-
- if (pa_oss_auto_format(u->fd, &u->sample_spec) < 0)
- goto fail;
-
- if (mode != O_WRONLY) {
- if (ioctl(u->fd, SNDCTL_DSP_GETISPACE, &info) < 0) {
- fprintf(stderr, "SNDCTL_DSP_GETISPACE: %s\n", strerror(errno));
- goto fail;
- }
-
- fprintf(stderr, "module-oss-mmap: input -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
- u->in_mmap_length = (u->in_fragment_size = info.fragsize) * (u->in_fragments = info.fragstotal);
-
- if ((u->in_mmap = mmap(NULL, u->in_mmap_length, PROT_READ, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
- if (mode == O_RDWR) {
- fprintf(stderr, "module-oss-mmap: mmap failed for input. Changing to O_WRONLY mode.\n");
- mode = O_WRONLY;
- } else {
- fprintf(stderr, "modeule-oss-mmap: mmap(): %s\n", strerror(errno));
- goto fail;
- }
- } else {
-
- u->source = pa_source_new(c, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &u->sample_spec);
- assert(u->source);
- u->source->userdata = u;
- pa_source_set_owner(u->source, m);
- u->source->description = pa_sprintf_malloc("Open Sound System PCM/mmap() on '%s'", p);
-
-
- u->in_memblocks = malloc(sizeof(struct pa_memblock *)*u->in_fragments);
- memset(u->in_memblocks, 0, sizeof(struct pa_memblock *)*u->in_fragments);
-
- enable_bits |= PCM_ENABLE_INPUT;
- }
- }
-
- if (mode != O_RDONLY) {
- if (ioctl(u->fd, SNDCTL_DSP_GETOSPACE, &info) < 0) {
- fprintf(stderr, "SNDCTL_DSP_GETOSPACE: %s\n", strerror(errno));
- goto fail;
- }
-
- fprintf(stderr, "module-oss: output -- %u fragments of size %u.\n", info.fragstotal, info.fragsize);
- u->out_mmap_length = (u->out_fragment_size = info.fragsize) * (u->out_fragments = info.fragstotal);
-
- if ((u->out_mmap = mmap(NULL, u->out_mmap_length, PROT_WRITE, MAP_SHARED, u->fd, 0)) == MAP_FAILED) {
- if (mode == O_RDWR) {
- fprintf(stderr, "module-oss-mmap: mmap filed for output. Changing to O_RDONLY mode.\n");
- mode = O_RDONLY;
- } else {
- fprintf(stderr, "module-oss-mmap: mmap(): %s\n", strerror(errno));
- goto fail;
- }
- } else {
- pa_silence_memory(u->out_mmap, u->out_mmap_length, &u->sample_spec);
-
- u->sink = pa_sink_new(c, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &u->sample_spec);
- 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("Open Sound System PCM/mmap() on '%s'", p);
-
- u->out_memblocks = malloc(sizeof(struct memblock *)*u->out_fragments);
- memset(u->out_memblocks, 0, sizeof(struct pa_memblock *)*u->out_fragments);
-
- enable_bits |= PCM_ENABLE_OUTPUT;
- }
- }
-
- zero = 0;
- if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &zero) < 0) {
- fprintf(stderr, "SNDCTL_DSP_SETTRIGGER: %s\n", strerror(errno));
- goto fail;
- }
-
- if (ioctl(u->fd, SNDCTL_DSP_SETTRIGGER, &enable_bits) < 0) {
- fprintf(stderr, "SNDCTL_DSP_SETTRIGGER: %s\n", strerror(errno));
- goto fail;
- }
-
- assert(u->source || u->sink);
-
- u->mainloop_source = c->mainloop->source_io(c->mainloop, u->fd, (u->source ? PA_MAINLOOP_API_IO_EVENT_INPUT : 0) | (u->sink ? PA_MAINLOOP_API_IO_EVENT_OUTPUT : 0), io_callback, u);
- assert(u->mainloop_source);
-
- pa_modargs_free(ma);
-
- return 0;
-
-fail:
- pa_module_done(c, m);
-
- if (ma)
- pa_modargs_free(ma);
-
- return -1;
-}
-
-void pa_module_done(struct pa_core *c, struct pa_module*m) {
- struct userdata *u;
- assert(c && m);
-
- u = m->userdata;
- assert(u);
-
- if (u->out_memblocks) {
- unsigned i;
- for (i = 0; i < u->out_fragments; i++)
- if (u->out_memblocks[i])
- pa_memblock_unref_fixed(u->out_memblocks[i]);
- free(u->out_memblocks);
- }
-
- if (u->in_memblocks) {
- unsigned i;
- for (i = 0; i < u->in_fragments; i++)
- if (u->in_memblocks[i])
- pa_memblock_unref_fixed(u->in_memblocks[i]);
- free(u->in_memblocks);
- }
-
- if (u->in_mmap && u->in_mmap != MAP_FAILED)
- munmap(u->in_mmap, u->in_mmap_length);
-
- if (u->out_mmap && u->out_mmap != MAP_FAILED)
- munmap(u->out_mmap, u->out_mmap_length);
-
- if (u->sink)
- pa_sink_free(u->sink);
-
- if (u->source)
- pa_source_free(u->source);
-
- if (u->mainloop_source)
- u->core->mainloop->cancel_io(u->core->mainloop, u->mainloop_source);
-
- if (u->fd >= 0)
- close(u->fd);
-
- free(u);
-}