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Diffstat (limited to 'src/modules/dbus/iface-card.c')
| -rw-r--r-- | src/modules/dbus/iface-card.c | 561 |
1 files changed, 561 insertions, 0 deletions
diff --git a/src/modules/dbus/iface-card.c b/src/modules/dbus/iface-card.c new file mode 100644 index 00000000..1714df36 --- /dev/null +++ b/src/modules/dbus/iface-card.c @@ -0,0 +1,561 @@ +/*** + This file is part of PulseAudio. + + Copyright 2009 Tanu Kaskinen + + 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 <dbus/dbus.h> + +#include <pulsecore/core-util.h> +#include <pulsecore/dbus-util.h> +#include <pulsecore/protocol-dbus.h> + +#include "iface-card-profile.h" + +#include "iface-card.h" + +#define OBJECT_NAME "card" + +static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_name(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_sinks(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_sources(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_profiles(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_get_active_profile(DBusConnection *conn, DBusMessage *msg, void *userdata); +static void handle_set_active_profile(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata); +static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata); + +static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata); + +static void handle_get_profile_by_name(DBusConnection *conn, DBusMessage *msg, void *userdata); + +struct pa_dbusiface_card { + pa_dbusiface_core *core; + + pa_card *card; + char *path; + pa_hashmap *profiles; + uint32_t next_profile_index; + pa_card_profile *active_profile; + pa_proplist *proplist; + + pa_dbus_protocol *dbus_protocol; + pa_subscription *subscription; +}; + +enum property_handler_index { + PROPERTY_HANDLER_INDEX, + PROPERTY_HANDLER_NAME, + PROPERTY_HANDLER_DRIVER, + PROPERTY_HANDLER_OWNER_MODULE, + PROPERTY_HANDLER_SINKS, + PROPERTY_HANDLER_SOURCES, + PROPERTY_HANDLER_PROFILES, + PROPERTY_HANDLER_ACTIVE_PROFILE, + PROPERTY_HANDLER_PROPERTY_LIST, + PROPERTY_HANDLER_MAX +}; + +static pa_dbus_property_handler property_handlers[PROPERTY_HANDLER_MAX] = { + [PROPERTY_HANDLER_INDEX] = { .property_name = "Index", .type = "u", .get_cb = handle_get_index, .set_cb = NULL }, + [PROPERTY_HANDLER_NAME] = { .property_name = "Name", .type = "s", .get_cb = handle_get_name, .set_cb = NULL }, + [PROPERTY_HANDLER_DRIVER] = { .property_name = "Driver", .type = "s", .get_cb = handle_get_driver, .set_cb = NULL }, + [PROPERTY_HANDLER_OWNER_MODULE] = { .property_name = "OwnerModule", .type = "o", .get_cb = handle_get_owner_module, .set_cb = NULL }, + [PROPERTY_HANDLER_SINKS] = { .property_name = "Sinks", .type = "ao", .get_cb = handle_get_sinks, .set_cb = NULL }, + [PROPERTY_HANDLER_SOURCES] = { .property_name = "Sources", .type = "ao", .get_cb = handle_get_sources, .set_cb = NULL }, + [PROPERTY_HANDLER_PROFILES] = { .property_name = "Profiles", .type = "ao", .get_cb = handle_get_profiles, .set_cb = NULL }, + [PROPERTY_HANDLER_ACTIVE_PROFILE] = { .property_name = "ActiveProfile", .type = "o", .get_cb = handle_get_active_profile, .set_cb = handle_set_active_profile }, + [PROPERTY_HANDLER_PROPERTY_LIST] = { .property_name = "PropertyList", .type = "a{say}", .get_cb = handle_get_property_list, .set_cb = NULL } +}; + +enum method_handler_index { + METHOD_HANDLER_GET_PROFILE_BY_NAME, + METHOD_HANDLER_MAX +}; + +static pa_dbus_arg_info get_profile_by_name_args[] = { { "name", "s", "in" }, { "profile", "o", "out" } }; + +static pa_dbus_method_handler method_handlers[METHOD_HANDLER_MAX] = { + [METHOD_HANDLER_GET_PROFILE_BY_NAME] = { + .method_name = "GetProfileByName", + .arguments = get_profile_by_name_args, + .n_arguments = sizeof(get_profile_by_name_args) / sizeof(pa_dbus_arg_info), + .receive_cb = handle_get_profile_by_name } +}; + +enum signal_index { + SIGNAL_ACTIVE_PROFILE_UPDATED, + SIGNAL_PROPERTY_LIST_UPDATED, + SIGNAL_MAX +}; + +static pa_dbus_arg_info active_profile_updated_args[] = { { "profile", "o", NULL } }; +static pa_dbus_arg_info property_list_updated_args[] = { { "property_list", "a{say}", NULL } }; + +static pa_dbus_signal_info signals[SIGNAL_MAX] = { + [SIGNAL_ACTIVE_PROFILE_UPDATED] = { .name = "ActiveProfileUpdated", .arguments = active_profile_updated_args, .n_arguments = 1 }, + [SIGNAL_PROPERTY_LIST_UPDATED] = { .name = "PropertyListUpdated", .arguments = property_list_updated_args, .n_arguments = 1 } +}; + +static pa_dbus_interface_info card_interface_info = { + .name = PA_DBUSIFACE_CARD_INTERFACE, + .method_handlers = method_handlers, + .n_method_handlers = METHOD_HANDLER_MAX, + .property_handlers = property_handlers, + .n_property_handlers = PROPERTY_HANDLER_MAX, + .get_all_properties_cb = handle_get_all, + .signals = signals, + .n_signals = SIGNAL_MAX +}; + +static void handle_get_index(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + dbus_uint32_t idx; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + idx = c->card->index; + + pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_UINT32, &idx); +} + +static void handle_get_name(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &c->card->name); +} + +static void handle_get_driver(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_STRING, &c->card->driver); +} + +static void handle_get_owner_module(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + const char *owner_module; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + if (!c->card->module) { + pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, "Card %s doesn't have an owner module.", c->card->name); + return; + } + + owner_module = pa_dbusiface_core_get_module_path(c->core, c->card->module); + + pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &owner_module); +} + +/* The caller frees the array, but not the strings. */ +static const char **get_sinks(pa_dbusiface_card *c, unsigned *n) { + const char **sinks = NULL; + unsigned i = 0; + uint32_t idx = 0; + pa_sink *sink = NULL; + + pa_assert(c); + pa_assert(n); + + *n = pa_idxset_size(c->card->sinks); + + if (*n == 0) + return NULL; + + sinks = pa_xnew(const char *, *n); + + PA_IDXSET_FOREACH(sink, c->card->sinks, idx) { + sinks[i] = pa_dbusiface_core_get_sink_path(c->core, sink); + ++i; + } + + return sinks; +} + +static void handle_get_sinks(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + const char **sinks; + unsigned n_sinks; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + sinks = get_sinks(c, &n_sinks); + + pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, sinks, n_sinks); + + pa_xfree(sinks); +} + +/* The caller frees the array, but not the strings. */ +static const char **get_sources(pa_dbusiface_card *c, unsigned *n) { + const char **sources = NULL; + unsigned i = 0; + uint32_t idx = 0; + pa_source *source = NULL; + + pa_assert(c); + pa_assert(n); + + *n = pa_idxset_size(c->card->sources); + + if (*n == 0) + return NULL; + + sources = pa_xnew(const char *, *n); + + PA_IDXSET_FOREACH(source, c->card->sinks, idx) { + sources[i] = pa_dbusiface_core_get_source_path(c->core, source); + ++i; + } + + return sources; +} + +static void handle_get_sources(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + const char **sources; + unsigned n_sources; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + sources = get_sources(c, &n_sources); + + pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, sources, n_sources); + + pa_xfree(sources); +} + +/* The caller frees the array, but not the strings. */ +static const char **get_profiles(pa_dbusiface_card *c, unsigned *n) { + const char **profiles; + unsigned i = 0; + void *state = NULL; + pa_dbusiface_card_profile *profile; + + pa_assert(c); + pa_assert(n); + + *n = pa_hashmap_size(c->profiles); + + if (*n == 0) + return NULL; + + profiles = pa_xnew(const char *, *n); + + PA_HASHMAP_FOREACH(profile, c->profiles, state) + profiles[i++] = pa_dbusiface_card_profile_get_path(profile); + + return profiles; +} + +static void handle_get_profiles(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + const char **profiles; + unsigned n_profiles; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + profiles = get_profiles(c, &n_profiles); + + pa_dbus_send_basic_array_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, profiles, n_profiles); + + pa_xfree(profiles); +} + +static void handle_get_active_profile(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + const char *active_profile; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + if (!c->active_profile) { + pa_assert(pa_hashmap_isempty(c->profiles)); + + pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, + "The card %s has no profiles, and therefore there's no active profile either.", c->card->name); + return; + } + + active_profile = pa_dbusiface_card_profile_get_path(pa_hashmap_get(c->profiles, c->active_profile->name)); + + pa_dbus_send_basic_variant_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &active_profile); +} + +static void handle_set_active_profile(DBusConnection *conn, DBusMessage *msg, DBusMessageIter *iter, void *userdata) { + pa_dbusiface_card *c = userdata; + const char *new_active_path; + pa_dbusiface_card_profile *new_active; + int r; + + pa_assert(conn); + pa_assert(msg); + pa_assert(iter); + pa_assert(c); + + if (!c->active_profile) { + pa_assert(pa_hashmap_isempty(c->profiles)); + + pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NO_SUCH_PROPERTY, + "The card %s has no profiles, and therefore there's no active profile either.", + c->card->name); + return; + } + + dbus_message_iter_get_basic(iter, &new_active_path); + + if (!(new_active = pa_hashmap_get(c->profiles, new_active_path))) { + pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such profile.", new_active_path); + return; + } + + if ((r = pa_card_set_profile(c->card, pa_dbusiface_card_profile_get_name(new_active), TRUE)) < 0) { + pa_dbus_send_error(conn, msg, DBUS_ERROR_FAILED, + "Internal error in PulseAudio: pa_card_set_profile() failed with error code %i.", r); + return; + } + + pa_dbus_send_empty_reply(conn, msg); +} + +static void handle_get_property_list(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + pa_dbus_send_proplist_variant_reply(conn, msg, c->proplist); +} + +static void handle_get_all(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + DBusMessage *reply = NULL; + DBusMessageIter msg_iter; + DBusMessageIter dict_iter; + dbus_uint32_t idx; + const char *owner_module = NULL; + const char **sinks = NULL; + unsigned n_sinks = 0; + const char **sources = NULL; + unsigned n_sources = 0; + const char **profiles = NULL; + unsigned n_profiles = 0; + const char *active_profile = NULL; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + idx = c->card->index; + if (c->card->module) + owner_module = pa_dbusiface_core_get_module_path(c->core, c->card->module); + sinks = get_sinks(c, &n_sinks); + sources = get_sources(c, &n_sources); + profiles = get_profiles(c, &n_profiles); + if (c->active_profile) + active_profile = pa_dbusiface_card_profile_get_path(pa_hashmap_get(c->profiles, c->active_profile->name)); + + pa_assert_se((reply = dbus_message_new_method_return(msg))); + + dbus_message_iter_init_append(reply, &msg_iter); + pa_assert_se(dbus_message_iter_open_container(&msg_iter, DBUS_TYPE_ARRAY, "{sv}", &dict_iter)); + + pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_INDEX].property_name, DBUS_TYPE_UINT32, &idx); + pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_NAME].property_name, DBUS_TYPE_STRING, &c->card->name); + pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_DRIVER].property_name, DBUS_TYPE_STRING, &c->card->driver); + + if (owner_module) + pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_OWNER_MODULE].property_name, DBUS_TYPE_OBJECT_PATH, &owner_module); + + pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SINKS].property_name, DBUS_TYPE_OBJECT_PATH, sinks, n_sinks); + pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_SOURCES].property_name, DBUS_TYPE_OBJECT_PATH, sources, n_sources); + pa_dbus_append_basic_array_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_PROFILES].property_name, DBUS_TYPE_OBJECT_PATH, profiles, n_profiles); + + if (active_profile) + pa_dbus_append_basic_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_ACTIVE_PROFILE].property_name, DBUS_TYPE_OBJECT_PATH, &active_profile); + + pa_dbus_append_proplist_variant_dict_entry(&dict_iter, property_handlers[PROPERTY_HANDLER_PROPERTY_LIST].property_name, c->proplist); + + pa_assert_se(dbus_message_iter_close_container(&msg_iter, &dict_iter)); + + pa_assert_se(dbus_connection_send(conn, reply, NULL)); + + dbus_message_unref(reply); + + pa_xfree(sinks); + pa_xfree(sources); + pa_xfree(profiles); +} + +static void handle_get_profile_by_name(DBusConnection *conn, DBusMessage *msg, void *userdata) { + pa_dbusiface_card *c = userdata; + const char *profile_name = NULL; + pa_dbusiface_card_profile *profile = NULL; + const char *profile_path = NULL; + + pa_assert(conn); + pa_assert(msg); + pa_assert(c); + + pa_assert_se(dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &profile_name, DBUS_TYPE_INVALID)); + + if (!(profile = pa_hashmap_get(c->profiles, profile_name))) { + pa_dbus_send_error(conn, msg, PA_DBUS_ERROR_NOT_FOUND, "%s: No such profile on card %s.", profile_name, c->card->name); + return; + } + + profile_path = pa_dbusiface_card_profile_get_path(profile); + + pa_dbus_send_basic_value_reply(conn, msg, DBUS_TYPE_OBJECT_PATH, &profile_path); +} + +static void subscription_cb(pa_core *core, pa_subscription_event_type_t t, uint32_t idx, void *userdata) { + pa_dbusiface_card *c = userdata; + DBusMessage *signal = NULL; + + pa_assert(core); + pa_assert((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_CARD); + pa_assert(c); + + /* We can't use idx != c->card->index, because the c->card pointer may + * be stale at this point. */ + if (pa_idxset_get_by_index(core->cards, idx) != c->card) + return; + + if ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) != PA_SUBSCRIPTION_EVENT_CHANGE) + return; + + if (c->active_profile != c->card->active_profile) { + const char *object_path; + + c->active_profile = c->card->active_profile; + object_path = pa_dbusiface_card_profile_get_path(pa_hashmap_get(c->profiles, c->active_profile->name)); + + pa_assert_se(signal = dbus_message_new_signal(c->path, + PA_DBUSIFACE_CARD_INTERFACE, + signals[SIGNAL_ACTIVE_PROFILE_UPDATED].name)); + pa_assert_se(dbus_message_append_args(signal, DBUS_TYPE_OBJECT_PATH, &object_path, DBUS_TYPE_INVALID)); + + pa_dbus_protocol_send_signal(c->dbus_protocol, signal); + dbus_message_unref(signal); + signal = NULL; + } + + if (!pa_proplist_equal(c->proplist, c->card->proplist)) { + DBusMessageIter msg_iter; + + pa_proplist_update(c->proplist, PA_UPDATE_SET, c->card->proplist); + + pa_assert_se(signal = dbus_message_new_signal(c->path, + PA_DBUSIFACE_CARD_INTERFACE, + signals[SIGNAL_PROPERTY_LIST_UPDATED].name)); + dbus_message_iter_init_append(signal, &msg_iter); + pa_dbus_append_proplist(&msg_iter, c->proplist); + + pa_dbus_protocol_send_signal(c->dbus_protocol, signal); + dbus_message_unref(signal); + signal = NULL; + } +} + +pa_dbusiface_card *pa_dbusiface_card_new(pa_dbusiface_core *core, pa_card *card) { + pa_dbusiface_card *c = NULL; + + pa_assert(core); + pa_assert(card); + + c = pa_xnew0(pa_dbusiface_card, 1); + c->core = core; + c->card = card; + c->path = pa_sprintf_malloc("%s/%s%u", PA_DBUS_CORE_OBJECT_PATH, OBJECT_NAME, card->index); + c->profiles = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); + c->next_profile_index = 0; + c->active_profile = NULL; + c->proplist = pa_proplist_copy(card->proplist); + c->dbus_protocol = pa_dbus_protocol_get(card->core); + c->subscription = pa_subscription_new(card->core, PA_SUBSCRIPTION_MASK_CARD, subscription_cb, c); + + if (card->profiles) { + pa_card_profile *profile; + void *state = NULL; + + PA_HASHMAP_FOREACH(profile, card->profiles, state) { + pa_dbusiface_card_profile *p = pa_dbusiface_card_profile_new(c, card->core, profile, c->next_profile_index++); + pa_hashmap_put(c->profiles, pa_dbusiface_card_profile_get_name(p), p); + } + pa_assert_se(c->active_profile = card->active_profile); + } + + pa_assert_se(pa_dbus_protocol_add_interface(c->dbus_protocol, c->path, &card_interface_info, c) >= 0); + + return c; +} + +static void profile_free_cb(void *p, void *userdata) { + pa_dbusiface_card_profile *profile = p; + + pa_assert(profile); + + pa_dbusiface_card_profile_free(profile); +} + +void pa_dbusiface_card_free(pa_dbusiface_card *c) { + pa_assert(c); + + pa_assert_se(pa_dbus_protocol_remove_interface(c->dbus_protocol, c->path, card_interface_info.name) >= 0); + + pa_hashmap_free(c->profiles, profile_free_cb, NULL); + pa_proplist_free(c->proplist); + pa_dbus_protocol_unref(c->dbus_protocol); + pa_subscription_free(c->subscription); + + pa_xfree(c->path); + pa_xfree(c); +} + +const char *pa_dbusiface_card_get_path(pa_dbusiface_card *c) { + pa_assert(c); + + return c->path; +} |