mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-03 09:01:54 -05:00
bluez5: implement Bluetooth MIDI device enumeration
Add monitor for enumerating connected Bluetooth MIDI devices.
This commit is contained in:
Pauli Virtanen
Wim Taymans
parent
a07dfbbdb9
commit
931e8da3ea
5 changed files with 827 additions and 0 deletions
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@ -120,6 +120,8 @@ extern "C" {
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#define SPA_NAME_API_BLUEZ5_A2DP_SOURCE "api.bluez5.a2dp.source" /**< alias for media.source */
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#define SPA_NAME_API_BLUEZ5_A2DP_SOURCE "api.bluez5.a2dp.source" /**< alias for media.source */
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#define SPA_NAME_API_BLUEZ5_SCO_SINK "api.bluez5.sco.sink" /**< a playback Node interface for HSP/HFP profiles */
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#define SPA_NAME_API_BLUEZ5_SCO_SINK "api.bluez5.sco.sink" /**< a playback Node interface for HSP/HFP profiles */
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#define SPA_NAME_API_BLUEZ5_SCO_SOURCE "api.bluez5.sco.source" /**< a capture Node interface for HSP/HFP profiles */
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#define SPA_NAME_API_BLUEZ5_SCO_SOURCE "api.bluez5.sco.source" /**< a capture Node interface for HSP/HFP profiles */
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#define SPA_NAME_API_BLUEZ5_MIDI_ENUM "api.bluez5.midi.enum" /**< a dbus midi Device interface */
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#define SPA_NAME_API_BLUEZ5_MIDI_NODE "api.bluez5.midi.node" /**< a midi Node interface */
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/** keys for codec factory names */
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/** keys for codec factory names */
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#define SPA_NAME_API_CODEC_BLUEZ5_MEDIA "api.codec.bluez5.media" /**< Bluez5 Media codec plugin */
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#define SPA_NAME_API_CODEC_BLUEZ5_MEDIA "api.codec.bluez5.media" /**< Bluez5 Media codec plugin */
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@ -31,6 +31,7 @@ bluez5_sources = [
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'hci.c',
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'hci.c',
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'dbus-manager.c',
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'dbus-manager.c',
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'dbus-monitor.c',
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'dbus-monitor.c',
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'midi-enum.c',
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]
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]
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bluez5_data = ['bluez-hardware.conf']
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bluez5_data = ['bluez-hardware.conf']
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775
spa/plugins/bluez5/midi-enum.c
Normal file
775
spa/plugins/bluez5/midi-enum.c
Normal file
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@ -0,0 +1,775 @@
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/* Spa midi dbus
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*
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* Copyright © 2022 Pauli Virtanen
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <errno.h>
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#include <stddef.h>
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#include <dbus/dbus.h>
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#include <spa/support/log.h>
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#include <spa/support/loop.h>
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#include <spa/support/dbus.h>
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#include <spa/support/plugin.h>
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#include <spa/monitor/device.h>
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#include <spa/monitor/utils.h>
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#include <spa/utils/hook.h>
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#include <spa/utils/type.h>
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#include <spa/utils/keys.h>
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#include <spa/utils/names.h>
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#include <spa/utils/result.h>
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#include <spa/utils/string.h>
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#include <spa/utils/json.h>
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#include <spa/node/node.h>
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#include <spa/node/keys.h>
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#include "dbus-monitor.h"
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#include "dbus-manager.h"
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#include "midi.h"
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#include "config.h"
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#define MIDI_OBJECT_PATH "/midi"
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#define MIDI_PROFILE_PATH MIDI_OBJECT_PATH "/profile"
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static struct spa_log_topic log_topic = SPA_LOG_TOPIC(0, "spa.bluez5.midi");
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#undef SPA_LOG_TOPIC_DEFAULT
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#define SPA_LOG_TOPIC_DEFAULT &log_topic
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struct impl
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{
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struct spa_handle handle;
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struct spa_device device;
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struct spa_log *log;
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struct spa_dbus *dbus;
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struct spa_dbus_connection *dbus_connection;
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DBusConnection *conn;
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struct spa_dbus_monitor *dbus_monitor;
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struct spa_dbus_object_manager *object_manager;
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struct spa_dbus_local_object *profile;
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struct spa_hook_list hooks;
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uint32_t id;
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unsigned int object_manager_registered:1;
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unsigned int profile_registered:1;
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};
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struct adapter
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{
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struct spa_dbus_object object;
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DBusPendingCall *register_call;
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unsigned int registered:1;
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};
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struct device
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{
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struct spa_dbus_object object;
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char *adapter_path;
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char *name;
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char *alias;
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char *address;
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char *icon;
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uint32_t class;
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uint16_t appearance;
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unsigned int connected:1;
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unsigned int services_resolved:1;
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};
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struct service
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{
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struct spa_dbus_object object;
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char *device_path;
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unsigned int valid_uuid:1;
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};
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struct chr
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{
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struct spa_dbus_object object;
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char *service_path;
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uint32_t id;
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DBusPendingCall *read_call;
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unsigned int node_emitted:1;
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unsigned int valid_uuid:1;
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unsigned int read_probed:1;
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unsigned int read_done:1;
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};
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static void emit_chr_node(struct impl *impl, struct chr *chr, struct device *device)
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{
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struct spa_device_object_info info;
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char class[16];
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struct spa_dict_item items[23];
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uint32_t n_items = 0;
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spa_log_debug(impl->log, "emit node for path=%s", chr->object.path);
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info = SPA_DEVICE_OBJECT_INFO_INIT();
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info.type = SPA_TYPE_INTERFACE_Node;
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info.factory_name = SPA_NAME_API_BLUEZ5_MIDI_NODE;
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info.change_mask = SPA_DEVICE_OBJECT_CHANGE_MASK_FLAGS |
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SPA_DEVICE_OBJECT_CHANGE_MASK_PROPS;
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info.flags = 0;
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_API, "bluez5");
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_DEVICE_BUS, "bluetooth");
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_MEDIA_CLASS, "Midi/Bridge");
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items[n_items++] = SPA_DICT_ITEM_INIT("node.description",
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device->alias ? device->alias : device->name);
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_BLUEZ5_ICON, device->icon);
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_BLUEZ5_PATH, chr->object.path);
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_BLUEZ5_ADDRESS, device->address);
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snprintf(class, sizeof(class), "0x%06x", device->class);
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items[n_items++] = SPA_DICT_ITEM_INIT(SPA_KEY_API_BLUEZ5_CLASS, class);
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info.props = &SPA_DICT_INIT(items, n_items);
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spa_device_emit_object_info(&impl->hooks, chr->id, &info);
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}
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static void remove_chr_node(struct impl *impl, struct chr *chr)
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{
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spa_log_debug(impl->log, "remove node for path=%s", chr->object.path);
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spa_device_emit_object_info(&impl->hooks, chr->id, NULL);
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}
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static void check_chr_node(struct impl *impl, struct chr *chr);
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static void read_probe_reply(DBusPendingCall **call_ptr, DBusMessage *r)
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{
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struct chr *chr = SPA_CONTAINER_OF(call_ptr, struct chr, read_call);
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struct impl *impl = chr->object.user_data;
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if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
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spa_log_error(impl->log, "%s.ReadValue() failed: %s",
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BLUEZ_GATT_CHR_INTERFACE,
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dbus_message_get_error_name(r));
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return;
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}
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spa_log_debug(impl->log, "MIDI GATT read probe done for path=%s", chr->object.path);
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chr->read_done = true;
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check_chr_node(impl, chr);
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}
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static int read_probe(struct impl *impl, struct chr *chr)
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{
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DBusMessageIter i, d;
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DBusMessage *m;
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/*
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* BLE MIDI-1.0 §5: The Central shall read the MIDI I/O characteristic
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* of the Peripheral after establishing a connection with the accessory.
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*/
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if (chr->read_probed)
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return 0;
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if (chr->read_call)
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return -EBUSY;
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chr->read_probed = true;
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spa_log_debug(impl->log, "MIDI GATT read probe for path=%s",
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chr->object.path);
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m = dbus_message_new_method_call(BLUEZ_SERVICE,
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chr->object.path,
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BLUEZ_GATT_CHR_INTERFACE,
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"ReadValue");
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if (m == NULL)
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return -ENOMEM;
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dbus_message_iter_init_append(m, &i);
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dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, "{sv}", &d);
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dbus_message_iter_close_container(&i, &d);
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return spa_dbus_async_call(impl->conn, m, &chr->read_call,
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read_probe_reply);
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}
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static int read_probe_reset(struct impl *impl, struct chr *chr)
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{
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spa_dbus_async_call_cancel(&chr->read_call);
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chr->read_probed = false;
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chr->read_done = false;
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return 0;
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}
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static void lookup_chr_node(struct impl *impl, struct chr *chr, struct service **service, struct device **device)
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{
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*service = (struct service *)spa_dbus_monitor_find(impl->dbus_monitor,
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chr->service_path, BLUEZ_GATT_SERVICE_INTERFACE);
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if (*service)
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*device = (struct device *)spa_dbus_monitor_find(impl->dbus_monitor,
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(*service)->device_path, BLUEZ_DEVICE_INTERFACE);
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else
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*device = NULL;
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}
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static void check_chr_node(struct impl *impl, struct chr *chr)
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{
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struct service *service;
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struct device *device;
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bool available;
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lookup_chr_node(impl, chr, &service, &device);
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if (!device || !device->connected) {
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/* Retry read probe on each connection */
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read_probe_reset(impl, chr);
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}
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available = service && device && device->connected &&
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device->services_resolved && service->valid_uuid &&
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chr->valid_uuid;
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if (available && !chr->read_done) {
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read_probe(impl, chr);
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available = false;
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}
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if (chr->node_emitted && !available) {
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remove_chr_node(impl, chr);
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chr->node_emitted = false;
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} else if (!chr->node_emitted && available) {
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emit_chr_node(impl, chr, device);
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chr->node_emitted = true;
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}
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}
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static void check_all_nodes(struct impl *impl)
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{
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/*
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* Check if the nodes we have emitted are in sync with connected devices.
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*/
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struct spa_list *chrs = spa_dbus_monitor_object_list(
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impl->dbus_monitor, BLUEZ_GATT_CHR_INTERFACE);
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struct chr *chr;
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spa_assert(chrs);
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spa_list_for_each(chr, chrs, object.link)
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check_chr_node(impl, chr);
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}
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static void adapter_register_application_reply(DBusPendingCall **call_ptr, DBusMessage *r)
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{
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struct adapter *adapter = SPA_CONTAINER_OF(call_ptr, struct adapter, register_call);
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struct impl *impl = adapter->object.user_data;
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if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
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spa_log_error(impl->log, "%s.RegisterApplication() failed: %s",
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BLUEZ_GATT_MANAGER_INTERFACE,
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dbus_message_get_error_name(r));
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return;
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}
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adapter->registered = true;
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}
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static int adapter_register_application(struct adapter *adapter)
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{
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struct impl *impl = adapter->object.user_data;
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DBusMessageIter i, d;
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DBusMessage *m;
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m = dbus_message_new_method_call(BLUEZ_SERVICE,
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adapter->object.path,
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BLUEZ_GATT_MANAGER_INTERFACE,
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"RegisterApplication");
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if (m == NULL)
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return -ENOMEM;
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dbus_message_iter_init_append(m, &i);
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dbus_message_iter_append_basic(&i, DBUS_TYPE_OBJECT_PATH, &impl->object_manager->path);
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dbus_message_iter_open_container(&i, DBUS_TYPE_ARRAY, "{sv}", &d);
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dbus_message_iter_close_container(&i, &d);
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return spa_dbus_async_call(impl->conn, m, &adapter->register_call,
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adapter_register_application_reply);
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}
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/*
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* DBus monitoring
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*/
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static const char *get_dbus_string(DBusMessageIter *value)
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{
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const char *v = NULL;
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int type = dbus_message_iter_get_arg_type(value);
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if (value && (type == DBUS_TYPE_STRING || type == DBUS_TYPE_OBJECT_PATH))
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dbus_message_iter_get_basic(value, &v);
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return v;
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}
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static void dup_dbus_string(DBusMessageIter *value, char **v)
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{
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const char *str = get_dbus_string(value);
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free(*v);
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*v = str ? strdup(str) : NULL;
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||||||
|
}
|
||||||
|
|
||||||
|
static bool get_dbus_bool(DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
dbus_bool_t v = FALSE;
|
||||||
|
if (value && dbus_message_iter_get_arg_type(value) == DBUS_TYPE_BOOLEAN)
|
||||||
|
dbus_message_iter_get_basic(value, &v);
|
||||||
|
return v ? true : false;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t get_dbus_uint32(DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
uint32_t v = 0;
|
||||||
|
if (value && dbus_message_iter_get_arg_type(value) == DBUS_TYPE_UINT32)
|
||||||
|
dbus_message_iter_get_basic(value, &v);
|
||||||
|
return v;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint16_t get_dbus_uint16(DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
uint16_t v = 0;
|
||||||
|
if (value && dbus_message_iter_get_arg_type(value) == DBUS_TYPE_UINT16)
|
||||||
|
dbus_message_iter_get_basic(value, &v);
|
||||||
|
return v;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void adapter_update(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct adapter *adapter = SPA_CONTAINER_OF(object, struct adapter, object);
|
||||||
|
|
||||||
|
if (adapter->registered || adapter->register_call)
|
||||||
|
return;
|
||||||
|
|
||||||
|
adapter_register_application(adapter);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void adapter_remove(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct adapter *adapter = SPA_CONTAINER_OF(object, struct adapter, object);
|
||||||
|
|
||||||
|
spa_dbus_async_call_cancel(&adapter->register_call);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void device_update(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct impl *impl = object->user_data;
|
||||||
|
|
||||||
|
check_all_nodes(impl);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void device_remove(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct device *device = SPA_CONTAINER_OF(object, struct device, object);
|
||||||
|
|
||||||
|
free(device->adapter_path);
|
||||||
|
free(device->name);
|
||||||
|
free(device->alias);
|
||||||
|
free(device->address);
|
||||||
|
free(device->icon);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void device_property(struct spa_dbus_object *object, const char *key, DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
struct device *device = SPA_CONTAINER_OF(object, struct device, object);
|
||||||
|
|
||||||
|
if (spa_streq(key, "Adapter"))
|
||||||
|
dup_dbus_string(value, &device->adapter_path);
|
||||||
|
else if (spa_streq(key, "Connected"))
|
||||||
|
device->connected = get_dbus_bool(value);
|
||||||
|
else if (spa_streq(key, "ServicesResolved"))
|
||||||
|
device->services_resolved = get_dbus_bool(value);
|
||||||
|
else if (spa_streq(key, "Name"))
|
||||||
|
dup_dbus_string(value, &device->name);
|
||||||
|
else if (spa_streq(key, "Alias"))
|
||||||
|
dup_dbus_string(value, &device->alias);
|
||||||
|
else if (spa_streq(key, "Address"))
|
||||||
|
dup_dbus_string(value, &device->address);
|
||||||
|
else if (spa_streq(key, "Icon"))
|
||||||
|
dup_dbus_string(value, &device->icon);
|
||||||
|
else if (spa_streq(key, "Class"))
|
||||||
|
device->class = get_dbus_uint32(value);
|
||||||
|
else if (spa_streq(key, "Appearance"))
|
||||||
|
device->appearance = get_dbus_uint16(value);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void service_update(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct service *service = SPA_CONTAINER_OF(object, struct service, object);
|
||||||
|
struct impl *impl = object->user_data;
|
||||||
|
|
||||||
|
if (!service->valid_uuid) {
|
||||||
|
spa_dbus_monitor_ignore_object(impl->dbus_monitor, object);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
check_all_nodes(impl);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void service_remove(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct service *service = SPA_CONTAINER_OF(object, struct service, object);
|
||||||
|
|
||||||
|
free(service->device_path);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void service_property(struct spa_dbus_object *object, const char *key, DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
struct service *service = SPA_CONTAINER_OF(object, struct service, object);
|
||||||
|
|
||||||
|
if (spa_streq(key, "UUID"))
|
||||||
|
service->valid_uuid = spa_streq(get_dbus_string(value), BT_MIDI_SERVICE_UUID);
|
||||||
|
else if (spa_streq(key, "Device"))
|
||||||
|
dup_dbus_string(value, &service->device_path);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chr_update(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct impl *impl = object->user_data;
|
||||||
|
struct chr *chr = SPA_CONTAINER_OF(object, struct chr, object);
|
||||||
|
|
||||||
|
if (!chr->valid_uuid) {
|
||||||
|
spa_dbus_monitor_ignore_object(impl->dbus_monitor, object);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (chr->id == 0)
|
||||||
|
chr->id = ++impl->id;
|
||||||
|
|
||||||
|
check_chr_node(impl, chr);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chr_remove(struct spa_dbus_object *object)
|
||||||
|
{
|
||||||
|
struct impl *impl = object->user_data;
|
||||||
|
struct chr *chr = SPA_CONTAINER_OF(object, struct chr, object);
|
||||||
|
|
||||||
|
read_probe_reset(impl, chr);
|
||||||
|
|
||||||
|
if (chr->node_emitted)
|
||||||
|
remove_chr_node(impl, chr);
|
||||||
|
|
||||||
|
free(chr->service_path);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void chr_property(struct spa_dbus_object *object, const char *key, DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
struct chr *chr = SPA_CONTAINER_OF(object, struct chr, object);
|
||||||
|
|
||||||
|
if (spa_streq(key, "UUID"))
|
||||||
|
chr->valid_uuid = spa_streq(get_dbus_string(value), BT_MIDI_CHR_UUID);
|
||||||
|
else if (spa_streq(key, "Service"))
|
||||||
|
dup_dbus_string(value, &chr->service_path);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct spa_dbus_interface monitor_interfaces[] = {
|
||||||
|
{
|
||||||
|
.name = BLUEZ_ADAPTER_INTERFACE,
|
||||||
|
.update = adapter_update,
|
||||||
|
.remove = adapter_remove,
|
||||||
|
.object_size = sizeof(struct adapter),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = BLUEZ_DEVICE_INTERFACE,
|
||||||
|
.update = device_update,
|
||||||
|
.remove = device_remove,
|
||||||
|
.property = device_property,
|
||||||
|
.object_size = sizeof(struct device),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = BLUEZ_GATT_SERVICE_INTERFACE,
|
||||||
|
.update = service_update,
|
||||||
|
.remove = service_remove,
|
||||||
|
.property = service_property,
|
||||||
|
.object_size = sizeof(struct service),
|
||||||
|
},
|
||||||
|
{
|
||||||
|
.name = BLUEZ_GATT_CHR_INTERFACE,
|
||||||
|
.update = chr_update,
|
||||||
|
.remove = chr_remove,
|
||||||
|
.property = chr_property,
|
||||||
|
.object_size = sizeof(struct chr),
|
||||||
|
},
|
||||||
|
{NULL}
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* DBus GATT profile, to enable BlueZ autoconnect
|
||||||
|
*/
|
||||||
|
|
||||||
|
static DBusMessage *profile_release(struct spa_dbus_local_object *object, DBusMessage *m)
|
||||||
|
{
|
||||||
|
/* noop */
|
||||||
|
return dbus_message_new_method_return(m);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int profile_uuids_get(struct spa_dbus_local_object *object, DBusMessageIter *value)
|
||||||
|
{
|
||||||
|
DBusMessageIter a;
|
||||||
|
const char *uuid = BT_MIDI_SERVICE_UUID;
|
||||||
|
|
||||||
|
dbus_message_iter_open_container(value, DBUS_TYPE_ARRAY, "s", &a);
|
||||||
|
dbus_message_iter_append_basic(&a, DBUS_TYPE_STRING, &uuid);
|
||||||
|
dbus_message_iter_close_container(value, &a);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct spa_dbus_local_interface profile_interfaces[] = {
|
||||||
|
{
|
||||||
|
.name = BLUEZ_GATT_PROFILE_INTERFACE,
|
||||||
|
.methods = (struct spa_dbus_method[]) {
|
||||||
|
{
|
||||||
|
.name = "Release",
|
||||||
|
.call = profile_release,
|
||||||
|
},
|
||||||
|
{NULL}
|
||||||
|
},
|
||||||
|
.properties = (struct spa_dbus_property[]) {
|
||||||
|
{
|
||||||
|
.name = "UUIDs",
|
||||||
|
.signature = "as",
|
||||||
|
.get = profile_uuids_get,
|
||||||
|
},
|
||||||
|
{NULL},
|
||||||
|
},
|
||||||
|
},
|
||||||
|
{NULL}
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Monitor impl
|
||||||
|
*/
|
||||||
|
|
||||||
|
static int impl_device_add_listener(void *object, struct spa_hook *listener,
|
||||||
|
const struct spa_device_events *events, void *data)
|
||||||
|
{
|
||||||
|
struct impl *this = object;
|
||||||
|
struct spa_hook_list save;
|
||||||
|
struct spa_list *chrs;
|
||||||
|
struct chr *chr;
|
||||||
|
|
||||||
|
spa_return_val_if_fail(this != NULL, -EINVAL);
|
||||||
|
spa_return_val_if_fail(events != NULL, -EINVAL);
|
||||||
|
|
||||||
|
chrs = spa_dbus_monitor_object_list(
|
||||||
|
this->dbus_monitor, BLUEZ_GATT_CHR_INTERFACE);
|
||||||
|
|
||||||
|
spa_hook_list_isolate(&this->hooks, &save, listener, events, data);
|
||||||
|
|
||||||
|
spa_list_for_each(chr, chrs, object.link) {
|
||||||
|
struct service *service;
|
||||||
|
struct device *device;
|
||||||
|
|
||||||
|
if (!chr->node_emitted)
|
||||||
|
continue;
|
||||||
|
|
||||||
|
lookup_chr_node(this, chr, &service, &device);
|
||||||
|
if (device)
|
||||||
|
emit_chr_node(this, chr, device);
|
||||||
|
}
|
||||||
|
|
||||||
|
spa_hook_list_join(&this->hooks, &save);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct spa_device_methods impl_device = {
|
||||||
|
SPA_VERSION_DEVICE_METHODS,
|
||||||
|
.add_listener = impl_device_add_listener,
|
||||||
|
};
|
||||||
|
|
||||||
|
static int impl_get_interface(struct spa_handle *handle, const char *type, void **interface)
|
||||||
|
{
|
||||||
|
struct impl *this;
|
||||||
|
|
||||||
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
||||||
|
spa_return_val_if_fail(interface != NULL, -EINVAL);
|
||||||
|
|
||||||
|
this = (struct impl *) handle;
|
||||||
|
|
||||||
|
if (spa_streq(type, SPA_TYPE_INTERFACE_Device))
|
||||||
|
*interface = &this->device;
|
||||||
|
else
|
||||||
|
return -ENOENT;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int impl_clear(struct spa_handle *handle)
|
||||||
|
{
|
||||||
|
struct impl *this;
|
||||||
|
|
||||||
|
this = (struct impl *) handle;
|
||||||
|
|
||||||
|
if (this->object_manager)
|
||||||
|
spa_dbus_object_manager_destroy(this->object_manager);
|
||||||
|
if (this->dbus_monitor)
|
||||||
|
spa_dbus_monitor_destroy(this->dbus_monitor);
|
||||||
|
if (this->conn)
|
||||||
|
dbus_connection_unref(this->conn);
|
||||||
|
if (this->dbus_connection)
|
||||||
|
spa_dbus_connection_destroy(this->dbus_connection);
|
||||||
|
|
||||||
|
spa_zero(*this);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static size_t
|
||||||
|
impl_get_size(const struct spa_handle_factory *factory,
|
||||||
|
const struct spa_dict *params)
|
||||||
|
{
|
||||||
|
return sizeof(struct impl);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int
|
||||||
|
impl_init(const struct spa_handle_factory *factory,
|
||||||
|
struct spa_handle *handle,
|
||||||
|
const struct spa_dict *info,
|
||||||
|
const struct spa_support *support,
|
||||||
|
uint32_t n_support)
|
||||||
|
{
|
||||||
|
struct impl *this;
|
||||||
|
int res = 0;
|
||||||
|
|
||||||
|
spa_return_val_if_fail(factory != NULL, -EINVAL);
|
||||||
|
spa_return_val_if_fail(handle != NULL, -EINVAL);
|
||||||
|
|
||||||
|
handle->get_interface = impl_get_interface;
|
||||||
|
handle->clear = impl_clear;
|
||||||
|
|
||||||
|
this = (struct impl *) handle;
|
||||||
|
|
||||||
|
this->log = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
|
||||||
|
this->dbus = spa_support_find(support, n_support, SPA_TYPE_INTERFACE_DBus);
|
||||||
|
|
||||||
|
if (this->log == NULL)
|
||||||
|
return -EINVAL;
|
||||||
|
|
||||||
|
spa_log_topic_init(this->log, &log_topic);
|
||||||
|
|
||||||
|
if (this->dbus == NULL) {
|
||||||
|
spa_log_error(this->log, "a dbus is needed");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
this->conn = NULL;
|
||||||
|
this->dbus_connection = NULL;
|
||||||
|
|
||||||
|
this->dbus_connection = spa_dbus_get_connection(this->dbus, SPA_DBUS_TYPE_SYSTEM);
|
||||||
|
if (this->dbus_connection == NULL) {
|
||||||
|
spa_log_error(this->log, "no dbus connection");
|
||||||
|
res = -EIO;
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
this->conn = spa_dbus_connection_get(this->dbus_connection);
|
||||||
|
if (this->conn == NULL) {
|
||||||
|
spa_log_error(this->log, "failed to get dbus connection");
|
||||||
|
res = -EIO;
|
||||||
|
goto fail;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* XXX: We should handle spa_dbus reconnecting, but we don't, so ref
|
||||||
|
* XXX: the handle so that we can keep it if spa_dbus unrefs it.
|
||||||
|
*/
|
||||||
|
dbus_connection_ref(this->conn);
|
||||||
|
|
||||||
|
spa_hook_list_init(&this->hooks);
|
||||||
|
|
||||||
|
this->device.iface = SPA_INTERFACE_INIT(
|
||||||
|
SPA_TYPE_INTERFACE_Device,
|
||||||
|
SPA_VERSION_DEVICE,
|
||||||
|
&impl_device, this);
|
||||||
|
|
||||||
|
this->dbus_monitor = spa_dbus_monitor_new(this->conn,
|
||||||
|
BLUEZ_SERVICE, "/", monitor_interfaces,
|
||||||
|
this->log, this);
|
||||||
|
if (!this->dbus_monitor)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
this->object_manager = spa_dbus_object_manager_new(this->conn,
|
||||||
|
MIDI_OBJECT_PATH, this->log);
|
||||||
|
if (!this->object_manager)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
this->profile = spa_dbus_object_manager_register(this->object_manager,
|
||||||
|
MIDI_PROFILE_PATH,
|
||||||
|
profile_interfaces,
|
||||||
|
sizeof(struct spa_dbus_local_object),
|
||||||
|
this);
|
||||||
|
if (!this->profile)
|
||||||
|
goto fail;
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
fail:
|
||||||
|
res = (res < 0) ? res : ((errno > 0) ? -errno : -EIO);
|
||||||
|
impl_clear(handle);
|
||||||
|
return res;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct spa_interface_info impl_interfaces[] = {
|
||||||
|
{SPA_TYPE_INTERFACE_Device,},
|
||||||
|
};
|
||||||
|
|
||||||
|
static int
|
||||||
|
impl_enum_interface_info(const struct spa_handle_factory *factory,
|
||||||
|
const struct spa_interface_info **info,
|
||||||
|
uint32_t *index)
|
||||||
|
{
|
||||||
|
spa_return_val_if_fail(factory != NULL, -EINVAL);
|
||||||
|
spa_return_val_if_fail(info != NULL, -EINVAL);
|
||||||
|
spa_return_val_if_fail(index != NULL, -EINVAL);
|
||||||
|
|
||||||
|
if (*index >= SPA_N_ELEMENTS(impl_interfaces))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
*info = &impl_interfaces[(*index)++];
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct spa_dict_item info_items[] = {
|
||||||
|
{ SPA_KEY_FACTORY_AUTHOR, "Pauli Virtanen <pav@iki.fi>" },
|
||||||
|
{ SPA_KEY_FACTORY_DESCRIPTION, "Bluez5 MIDI connection" },
|
||||||
|
};
|
||||||
|
|
||||||
|
static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items);
|
||||||
|
|
||||||
|
const struct spa_handle_factory spa_bluez5_midi_enum_factory = {
|
||||||
|
SPA_VERSION_HANDLE_FACTORY,
|
||||||
|
SPA_NAME_API_BLUEZ5_MIDI_ENUM,
|
||||||
|
&info,
|
||||||
|
impl_get_size,
|
||||||
|
impl_init,
|
||||||
|
impl_enum_interface_info,
|
||||||
|
};
|
||||||
45
spa/plugins/bluez5/midi.h
Normal file
45
spa/plugins/bluez5/midi.h
Normal file
|
|
@ -0,0 +1,45 @@
|
||||||
|
/* Spa V4l2 dbus
|
||||||
|
*
|
||||||
|
* Copyright © 2022 Pauli Virtanen
|
||||||
|
*
|
||||||
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||||||
|
* copy of this software and associated documentation files (the "Software"),
|
||||||
|
* to deal in the Software without restriction, including without limitation
|
||||||
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||||||
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||||||
|
* Software is furnished to do so, subject to the following conditions:
|
||||||
|
*
|
||||||
|
* The above copyright notice and this permission notice (including the next
|
||||||
|
* paragraph) shall be included in all copies or substantial portions of the
|
||||||
|
* Software.
|
||||||
|
*
|
||||||
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||||||
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||||
|
* DEALINGS IN THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
#ifndef SPA_BT_MIDI_H_
|
||||||
|
#define SPA_BT_MIDI_H_
|
||||||
|
|
||||||
|
#include <stddef.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
#include <stdbool.h>
|
||||||
|
|
||||||
|
#include <spa/utils/defs.h>
|
||||||
|
#include <spa/support/log.h>
|
||||||
|
|
||||||
|
#define BLUEZ_SERVICE "org.bluez"
|
||||||
|
#define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter1"
|
||||||
|
#define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device1"
|
||||||
|
#define BLUEZ_GATT_MANAGER_INTERFACE BLUEZ_SERVICE ".GattManager1"
|
||||||
|
#define BLUEZ_GATT_PROFILE_INTERFACE BLUEZ_SERVICE ".GattProfile1"
|
||||||
|
#define BLUEZ_GATT_SERVICE_INTERFACE BLUEZ_SERVICE ".GattService1"
|
||||||
|
#define BLUEZ_GATT_CHR_INTERFACE BLUEZ_SERVICE ".GattCharacteristic1"
|
||||||
|
|
||||||
|
#define BT_MIDI_SERVICE_UUID "03b80e5a-ede8-4b33-a751-6ce34ec4c700"
|
||||||
|
#define BT_MIDI_CHR_UUID "7772e5db-3868-4112-a1a9-f2669d106bf3"
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
@ -35,6 +35,7 @@ extern const struct spa_handle_factory spa_sco_sink_factory;
|
||||||
extern const struct spa_handle_factory spa_sco_source_factory;
|
extern const struct spa_handle_factory spa_sco_source_factory;
|
||||||
extern const struct spa_handle_factory spa_a2dp_sink_factory;
|
extern const struct spa_handle_factory spa_a2dp_sink_factory;
|
||||||
extern const struct spa_handle_factory spa_a2dp_source_factory;
|
extern const struct spa_handle_factory spa_a2dp_source_factory;
|
||||||
|
extern const struct spa_handle_factory spa_bluez5_midi_enum_factory;
|
||||||
|
|
||||||
SPA_EXPORT
|
SPA_EXPORT
|
||||||
int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
|
int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t *index)
|
||||||
|
|
@ -67,6 +68,9 @@ int spa_handle_factory_enum(const struct spa_handle_factory **factory, uint32_t
|
||||||
case 7:
|
case 7:
|
||||||
*factory = &spa_a2dp_source_factory;
|
*factory = &spa_a2dp_source_factory;
|
||||||
break;
|
break;
|
||||||
|
case 8:
|
||||||
|
*factory = &spa_bluez5_midi_enum_factory;
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Add table
Add a link
Reference in a new issue