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https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-10-29 05:40:23 -04:00
add simple hardware auto detection module
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@486 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering
parent
6ad876efa8
commit
5b881e6228
2 changed files with 237 additions and 2 deletions
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@ -47,6 +47,7 @@ AM_CFLAGS += $(PTHREAD_CFLAGS) -D_POSIX_PTHREAD_SEMANTICS
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AM_CFLAGS += $(LTDLINCL)
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AM_CFLAGS += $(LIBSAMPLERATE_CFLAGS) $(LIBSNDFILE_CFLAGS)
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AM_CFLAGS += -DDLSEARCHPATH=\"$(modlibdir)\"
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#AM_CFLAGS += -DDLSEARCHPATH=\"$(shell pwd)\"
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AM_CFLAGS += -DDEFAULT_CONFIG_DIR=\"$(DEFAULT_CONFIG_DIR)\"
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AM_CFLAGS += -DPOLYPAUDIO_BINARY=\"$(POLYPAUDIO_BINARY)\"
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@ -676,7 +677,8 @@ modlib_LTLIBRARIES += \
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module-null-sink.la \
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module-esound-sink.la \
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module-http-protocol-tcp.la \
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module-http-protocol-tcp6.la
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module-http-protocol-tcp6.la \
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module-detect.la
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if HAVE_AF_UNIX
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modlib_LTLIBRARIES += \
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@ -788,7 +790,8 @@ SYMDEF_FILES = \
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module-alsa-sink-symdef.h \
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module-alsa-source-symdef.h \
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module-solaris-symdef.h \
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module-waveout-symdef.h
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module-waveout-symdef.h \
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module-detect-symdef.h
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EXTRA_DIST += $(SYMDEF_FILES)
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BUILT_SOURCES += $(SYMDEF_FILES)
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@ -1009,6 +1012,12 @@ module_waveout_la_LDFLAGS = -module -avoid-version
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module_waveout_la_LIBADD = $(AM_LIBADD) libpolypcore.la -lwinmm
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module_waveout_la_CFLAGS = $(AM_CFLAGS)
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# Hardware autodetection module
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module_detect_la_SOURCES = module-detect.c
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module_detect_la_LDFLAGS = -module -avoid-version
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module_detect_la_LIBADD = $(AM_LIBADD)
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module_detect_la_CFLAGS = $(AM_CFLAGS)
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###################################
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# Some minor stuff #
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###################################
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226
polyp/module-detect.c
Normal file
226
polyp/module-detect.c
Normal file
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@ -0,0 +1,226 @@
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <assert.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "module.h"
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#include "log.h"
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#include "module-detect-symdef.h"
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#include "xmalloc.h"
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#include "modargs.h"
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PA_MODULE_AUTHOR("Lennart Poettering")
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PA_MODULE_DESCRIPTION("Detect available audio hardware and load matching drivers")
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PA_MODULE_VERSION(PACKAGE_VERSION)
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PA_MODULE_USAGE("just-one=<boolean>")
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static const char *endswith(const char *haystack, const char *needle) {
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size_t l, m;
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const char *p;
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if ((l = strlen(haystack)) < (m = strlen(needle)))
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return NULL;
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if (strcmp(p = haystack + l - m, needle))
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return NULL;
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return p;
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}
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#ifdef HAVE_ALSA
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static int detect_alsa(pa_core *c, int just_one) {
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FILE *f;
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int n = 0, n_sink = 0, n_source = 0;
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if (!(f = fopen("/proc/asound/devices", "r"))) {
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if (errno != ENOENT)
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pa_log_error(__FILE__": open(\"/proc/asound/devices\") failed: %s\n", strerror(errno));
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return -1;
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}
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while (!feof(f)) {
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char line[64], args[64];
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unsigned device, subdevice;
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int is_sink;
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if (!fgets(line, sizeof(line), f))
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break;
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line[strcspn(line, "\r\n")] = 0;
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if (endswith(line, "digital audio playback"))
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is_sink = 1;
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else if (endswith(line, "digital audio capture"))
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is_sink = 0;
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else
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continue;
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if (just_one && is_sink && n_sink >= 1)
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continue;
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if (just_one && !is_sink && n_source >= 1)
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continue;
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if (sscanf(line, " %*i: [%u- %u]: ", &device, &subdevice) != 2)
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continue;
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/* Only one sink per device */
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if (subdevice != 0)
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continue;
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snprintf(args, sizeof(args), "device=hw:%u,0", device);
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if (!pa_module_load(c, is_sink ? "module-alsa-sink" : "module-alsa-source", args))
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continue;
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n++;
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if (is_sink)
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n_sink++;
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else
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n_source++;
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}
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fclose(f);
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return n;
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}
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#endif
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#ifdef HAVE_OSS
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static int detect_oss(pa_core *c, int just_one) {
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FILE *f;
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int n = 0, b = 0;
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if (!(f = fopen("/dev/sndstat", "r")) &&
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!(f = fopen("/proc/sndstat", "r")) &&
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!(f = fopen("/proc/asound/oss/sndstat", "r"))) {
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if (errno != ENOENT)
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pa_log_error(__FILE__": failed to open OSS sndstat device: %s\n", strerror(errno));
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return -1;
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}
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while (!feof(f)) {
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char line[64], args[64];
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unsigned device;
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if (!fgets(line, sizeof(line), f))
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break;
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line[strcspn(line, "\r\n")] = 0;
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if (!b) {
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b = strcmp(line, "Audio devices:") == 0;
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continue;
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}
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if (line[0] == 0)
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break;
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if (sscanf(line, "%u: ", &device) != 1)
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continue;
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if (device == 0)
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snprintf(args, sizeof(args), "device=/dev/dsp");
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else
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snprintf(args, sizeof(args), "device=/dev/dsp%u", device);
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if (!pa_module_load(c, "module-oss", args))
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continue;
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n++;
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if (just_one)
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break;
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}
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fclose(f);
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return n;
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}
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#endif
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int pa__init(pa_core *c, pa_module*m) {
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int just_one = 0, n = 0;
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pa_modargs *ma;
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static const char* const valid_modargs[] = {
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"just-one",
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NULL
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};
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assert(c);
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assert(m);
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if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
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pa_log(__FILE__": Failed to parse module arguments\n");
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goto fail;
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}
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if (pa_modargs_get_value_boolean(ma, "just-one", &just_one) < 0) {
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pa_log(__FILE__": just_one= expects a boolean argument.\n");
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goto fail;
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}
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#if HAVE_ALSA
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if ((n = detect_alsa(c, just_one)) <= 0)
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#endif
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#if HAVE_OSS
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if ((n = detect_oss(c, just_one)) <= 0)
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#endif
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{
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pa_log_warn(__FILE__": failed to detect any sound hardware.\n");
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goto fail;
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}
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pa_log_info(__FILE__": loaded %i modules.\n", n);
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/* We were successful and can unload ourselves now. */
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pa_module_unload_request(m);
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pa_modargs_free(ma);
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return 0;
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fail:
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if (ma)
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pa_modargs_free(ma);
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return -1;
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}
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void pa__done(pa_core *c, pa_module*m) {
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/* NOP */
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}
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