diff options
| -rw-r--r-- | polyp/Makefile.am | 13 | ||||
| -rw-r--r-- | polyp/module-detect.c | 226 |
2 files changed, 237 insertions, 2 deletions
diff --git a/polyp/Makefile.am b/polyp/Makefile.am index e2154b322..061b82b45 100644 --- a/polyp/Makefile.am +++ b/polyp/Makefile.am @@ -47,6 +47,7 @@ AM_CFLAGS += $(PTHREAD_CFLAGS) -D_POSIX_PTHREAD_SEMANTICS AM_CFLAGS += $(LTDLINCL) AM_CFLAGS += $(LIBSAMPLERATE_CFLAGS) $(LIBSNDFILE_CFLAGS) AM_CFLAGS += -DDLSEARCHPATH=\"$(modlibdir)\" +#AM_CFLAGS += -DDLSEARCHPATH=\"$(shell pwd)\" AM_CFLAGS += -DDEFAULT_CONFIG_DIR=\"$(DEFAULT_CONFIG_DIR)\" AM_CFLAGS += -DPOLYPAUDIO_BINARY=\"$(POLYPAUDIO_BINARY)\" @@ -676,7 +677,8 @@ modlib_LTLIBRARIES += \ module-null-sink.la \ module-esound-sink.la \ module-http-protocol-tcp.la \ - module-http-protocol-tcp6.la + module-http-protocol-tcp6.la \ + module-detect.la if HAVE_AF_UNIX modlib_LTLIBRARIES += \ @@ -788,7 +790,8 @@ SYMDEF_FILES = \ module-alsa-sink-symdef.h \ module-alsa-source-symdef.h \ module-solaris-symdef.h \ - module-waveout-symdef.h + module-waveout-symdef.h \ + module-detect-symdef.h EXTRA_DIST += $(SYMDEF_FILES) BUILT_SOURCES += $(SYMDEF_FILES) @@ -1009,6 +1012,12 @@ module_waveout_la_LDFLAGS = -module -avoid-version module_waveout_la_LIBADD = $(AM_LIBADD) libpolypcore.la -lwinmm module_waveout_la_CFLAGS = $(AM_CFLAGS) +# Hardware autodetection module +module_detect_la_SOURCES = module-detect.c +module_detect_la_LDFLAGS = -module -avoid-version +module_detect_la_LIBADD = $(AM_LIBADD) +module_detect_la_CFLAGS = $(AM_CFLAGS) + ################################### # Some minor stuff # ################################### diff --git a/polyp/module-detect.c b/polyp/module-detect.c new file mode 100644 index 000000000..ee75da368 --- /dev/null +++ b/polyp/module-detect.c @@ -0,0 +1,226 @@ +/* $Id$ */ + +/*** + 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 <stdio.h> +#include <assert.h> +#include <unistd.h> +#include <string.h> +#include <stdlib.h> +#include <errno.h> +#include <stdlib.h> + +#include "module.h" +#include "log.h" +#include "module-detect-symdef.h" +#include "xmalloc.h" +#include "modargs.h" + +PA_MODULE_AUTHOR("Lennart Poettering") +PA_MODULE_DESCRIPTION("Detect available audio hardware and load matching drivers") +PA_MODULE_VERSION(PACKAGE_VERSION) +PA_MODULE_USAGE("just-one=<boolean>") + +static const char *endswith(const char *haystack, const char *needle) { + size_t l, m; + const char *p; + + if ((l = strlen(haystack)) < (m = strlen(needle))) + return NULL; + + if (strcmp(p = haystack + l - m, needle)) + return NULL; + + return p; +} + +#ifdef HAVE_ALSA +static int detect_alsa(pa_core *c, int just_one) { + FILE *f; + int n = 0, n_sink = 0, n_source = 0; + + if (!(f = fopen("/proc/asound/devices", "r"))) { + + if (errno != ENOENT) + pa_log_error(__FILE__": open(\"/proc/asound/devices\") failed: %s\n", strerror(errno)); + + return -1; + } + + while (!feof(f)) { + char line[64], args[64]; + unsigned device, subdevice; + int is_sink; + + if (!fgets(line, sizeof(line), f)) + break; + + line[strcspn(line, "\r\n")] = 0; + + if (endswith(line, "digital audio playback")) + is_sink = 1; + else if (endswith(line, "digital audio capture")) + is_sink = 0; + else + continue; + + if (just_one && is_sink && n_sink >= 1) + continue; + + if (just_one && !is_sink && n_source >= 1) + continue; + + if (sscanf(line, " %*i: [%u- %u]: ", &device, &subdevice) != 2) + continue; + + /* Only one sink per device */ + if (subdevice != 0) + continue; + + snprintf(args, sizeof(args), "device=hw:%u,0", device); + if (!pa_module_load(c, is_sink ? "module-alsa-sink" : "module-alsa-source", args)) + continue; + + n++; + + if (is_sink) + n_sink++; + else + n_source++; + } + + fclose(f); + + return n; +} +#endif + +#ifdef HAVE_OSS +static int detect_oss(pa_core *c, int just_one) { + FILE *f; + int n = 0, b = 0; + + if (!(f = fopen("/dev/sndstat", "r")) && + !(f = fopen("/proc/sndstat", "r")) && + !(f = fopen("/proc/asound/oss/sndstat", "r"))) { + + if (errno != ENOENT) + pa_log_error(__FILE__": failed to open OSS sndstat device: %s\n", strerror(errno)); + + return -1; + } + + while (!feof(f)) { + char line[64], args[64]; + unsigned device; + + if (!fgets(line, sizeof(line), f)) + break; + + line[strcspn(line, "\r\n")] = 0; + + if (!b) { + b = strcmp(line, "Audio devices:") == 0; + continue; + } + + if (line[0] == 0) + break; + + if (sscanf(line, "%u: ", &device) != 1) + continue; + + if (device == 0) + snprintf(args, sizeof(args), "device=/dev/dsp"); + else + snprintf(args, sizeof(args), "device=/dev/dsp%u", device); + + if (!pa_module_load(c, "module-oss", args)) + continue; + + n++; + + if (just_one) + break; + } + + fclose(f); + return n; +} +#endif + +int pa__init(pa_core *c, pa_module*m) { + int just_one = 0, n = 0; + pa_modargs *ma; + + static const char* const valid_modargs[] = { + "just-one", + NULL + }; + + assert(c); + assert(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, "just-one", &just_one) < 0) { + pa_log(__FILE__": just_one= expects a boolean argument.\n"); + goto fail; + } + +#if HAVE_ALSA + if ((n = detect_alsa(c, just_one)) <= 0) +#endif +#if HAVE_OSS + if ((n = detect_oss(c, just_one)) <= 0) +#endif + { + pa_log_warn(__FILE__": failed to detect any sound hardware.\n"); + goto fail; + } + + pa_log_info(__FILE__": loaded %i modules.\n", n); + + /* We were successful and can unload ourselves now. */ + pa_module_unload_request(m); + + pa_modargs_free(ma); + + return 0; + +fail: + if (ma) + pa_modargs_free(ma); + + return -1; +} + + +void pa__done(pa_core *c, pa_module*m) { + /* NOP */ +} + |