mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
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127 lines
3.2 KiB
C
127 lines
3.2 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2009 Lennart Poettering
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PulseAudio 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
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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PulseAudio 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
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License along with PulseAudio; 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 <pulsecore/log.h>
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#include <hal/libhal.h>
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#include "dbus-util.h"
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#include "hal-util.h"
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int pa_hal_get_info(pa_core *core, pa_proplist *p, int card) {
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pa_dbus_connection *c = NULL;
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LibHalContext *hal = NULL;
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DBusError error;
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int r = -1;
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char **udis = NULL, *t;
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int n, i;
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pa_assert(core);
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pa_assert(p);
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pa_assert(card >= 0);
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dbus_error_init(&error);
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if (!(c = pa_dbus_bus_get(core, DBUS_BUS_SYSTEM, &error)) || dbus_error_is_set(&error)) {
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pa_log_error("Unable to contact DBUS system bus: %s: %s", error.name, error.message);
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goto finish;
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}
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if (!(hal = libhal_ctx_new())) {
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pa_log_error("libhal_ctx_new() finished");
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goto finish;
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}
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if (!libhal_ctx_set_dbus_connection(hal, pa_dbus_connection_get(c))) {
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pa_log_error("Error establishing DBUS connection: %s: %s", error.name, error.message);
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goto finish;
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}
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if (!libhal_ctx_init(hal, &error)) {
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pa_log_error("Couldn't connect to hald: %s: %s", error.name, error.message);
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goto finish;
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}
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if (!(udis = libhal_find_device_by_capability(hal, "sound", &n, &error)) < 0) {
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pa_log_error("Couldn't find devices: %s: %s", error.name, error.message);
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goto finish;
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}
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for (i = 0; i < n; i++) {
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dbus_int32_t this_card;
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this_card = libhal_device_get_property_int(hal, udis[i], "sound.card", &error);
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if (dbus_error_is_set(&error)) {
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dbus_error_free(&error);
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continue;
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}
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if (this_card == card)
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break;
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}
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if (i >= n)
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goto finish;
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pa_proplist_sets(p, "hal.udi", udis[i]);
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t = libhal_device_get_property_string(hal, udis[i], "info.product", &error);
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if (dbus_error_is_set(&error))
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dbus_error_free(&error);
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if (t) {
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pa_proplist_sets(p, "hal.product", t);
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libhal_free_string(t);
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}
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t = libhal_device_get_property_string(hal, udis[i], "sound.card_id", &error);
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if (dbus_error_is_set(&error))
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dbus_error_free(&error);
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if (t) {
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pa_proplist_sets(p, "hal.card_id", t);
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libhal_free_string(t);
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}
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r = 0;
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finish:
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if (udis)
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libhal_free_string_array(udis);
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dbus_error_free(&error);
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if (hal) {
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libhal_ctx_shutdown(hal, &error);
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libhal_ctx_free(hal);
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dbus_error_free(&error);
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}
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if (c)
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pa_dbus_connection_unref(c);
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return r;
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}
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