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/***
This file is part of PulseAudio.
Copyright 2009 Lennart Poettering
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 2.1 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.
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <pulsecore/log.h>
#include <pulsecore/dbus-shared.h>
#include <hal/libhal.h>
#include "hal-util.h"
int pa_hal_get_info(pa_core *core, pa_proplist *p, int card) {
pa_dbus_connection *c = NULL;
LibHalContext *hal = NULL;
DBusError error;
int r = -1;
char **udis = NULL, *t;
int n, i;
pa_assert(core);
pa_assert(p);
pa_assert(card >= 0);
dbus_error_init(&error);
if (!(c = pa_dbus_bus_get(core, DBUS_BUS_SYSTEM, &error)) || dbus_error_is_set(&error)) {
pa_log_error("Unable to contact DBUS system bus: %s: %s", error.name, error.message);
goto finish;
}
if (!(hal = libhal_ctx_new())) {
pa_log_error("libhal_ctx_new() finished");
goto finish;
}
if (!libhal_ctx_set_dbus_connection(hal, pa_dbus_connection_get(c))) {
pa_log_error("Error establishing DBUS connection: %s: %s", error.name, error.message);
goto finish;
}
if (!libhal_ctx_init(hal, &error)) {
pa_log_error("Couldn't connect to hald: %s: %s", error.name, error.message);
goto finish;
}
if (!(udis = libhal_find_device_by_capability(hal, "sound", &n, &error))) {
pa_log_error("Couldn't find devices: %s: %s", error.name, error.message);
goto finish;
}
for (i = 0; i < n; i++) {
dbus_int32_t this_card;
this_card = libhal_device_get_property_int(hal, udis[i], "sound.card", &error);
if (dbus_error_is_set(&error)) {
dbus_error_free(&error);
continue;
}
if (this_card == card)
break;
}
if (i >= n)
goto finish;
pa_proplist_sets(p, "hal.udi", udis[i]);
/* The data HAL stores in info.product is not actually a product
* string but simply the ALSA card name. We will hence not write
* it to PA_PROP_DEVICE_PRODUCT_NAME */
t = libhal_device_get_property_string(hal, udis[i], "info.product", &error);
if (dbus_error_is_set(&error))
dbus_error_free(&error);
if (t) {
pa_proplist_sets(p, "hal.product", t);
libhal_free_string(t);
}
t = libhal_device_get_property_string(hal, udis[i], "sound.card_id", &error);
if (dbus_error_is_set(&error))
dbus_error_free(&error);
if (t) {
pa_proplist_sets(p, "hal.card_id", t);
libhal_free_string(t);
}
r = 0;
finish:
if (udis)
libhal_free_string_array(udis);
dbus_error_free(&error);
if (hal) {
libhal_ctx_shutdown(hal, &error);
libhal_ctx_free(hal);
dbus_error_free(&error);
}
if (c)
pa_dbus_connection_unref(c);
return r;
}
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