src/modules/bluetooth/bluez5-util.h - pulseaudio - Git at Google


            
            #ifndef foobluez5utilhfoo

            
            #define foobluez5utilhfoo


            /***

            
              This file is part of PulseAudio.


              Copyright 2008-2013 João Paulo Rechi Vita

            
              Copyrigth 2018-2019 Pali Rohár <pali.rohar@gmail.com>


              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, see <http://www.gnu.org/licenses/>.

            
            ***/


            #include <pulsecore/core.h>


            #include "a2dp-codec-util.h"


            #define BLUEZ_SERVICE "org.bluez"

            
            #define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter1"

            
            #define BLUEZ_BATTERY_PROVIDER_INTERFACE BLUEZ_SERVICE ".BatteryProvider1"

            
            #define BLUEZ_BATTERY_PROVIDER_MANAGER_INTERFACE BLUEZ_SERVICE ".BatteryProviderManager1"

            
            #define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device1"

            
            #define BLUEZ_MEDIA_ENDPOINT_INTERFACE BLUEZ_SERVICE ".MediaEndpoint1"

            
            #define BLUEZ_MEDIA_INTERFACE BLUEZ_SERVICE ".Media1"

            
            #define BLUEZ_MEDIA_TRANSPORT_INTERFACE BLUEZ_SERVICE ".MediaTransport1"

            
            #define BLUEZ_PROFILE_INTERFACE BLUEZ_SERVICE ".Profile1"

            
            #define BLUEZ_PROFILE_MANAGER_INTERFACE BLUEZ_SERVICE ".ProfileManager1"


            #define BLUEZ_ERROR_INVALID_ARGUMENTS BLUEZ_SERVICE ".Error.InvalidArguments"

            
            #define BLUEZ_ERROR_NOT_AVAILABLE BLUEZ_SERVICE ".Error.NotAvailable"

            
            #define BLUEZ_ERROR_NOT_SUPPORTED BLUEZ_SERVICE ".Error.NotSupported"


            #define PA_BLUETOOTH_UUID_A2DP_SOURCE "0000110a-0000-1000-8000-00805f9b34fb"

            
            #define PA_BLUETOOTH_UUID_A2DP_SINK   "0000110b-0000-1000-8000-00805f9b34fb"


            /* There are two HSP HS UUIDs. The first one (older?) is used both as the HSP

            
             * profile identifier and as the HS role identifier, while the second one is

            
             * only used to identify the role. As far as PulseAudio is concerned, the two

            
             * UUIDs mean exactly the same thing. */

            
            #define PA_BLUETOOTH_UUID_HSP_HS      "00001108-0000-1000-8000-00805f9b34fb"

            
            #define PA_BLUETOOTH_UUID_HSP_HS_ALT  "00001131-0000-1000-8000-00805f9b34fb"


            #define PA_BLUETOOTH_UUID_HSP_AG      "00001112-0000-1000-8000-00805f9b34fb"

            
            #define PA_BLUETOOTH_UUID_HFP_HF      "0000111e-0000-1000-8000-00805f9b34fb"

            
            #define PA_BLUETOOTH_UUID_HFP_AG      "0000111f-0000-1000-8000-00805f9b34fb"


            #define A2DP_MAX_GAIN 127

            
            #define HSP_MAX_GAIN 15


            typedef struct pa_bluetooth_transport pa_bluetooth_transport;

            
            typedef struct pa_bluetooth_device pa_bluetooth_device;

            
            typedef struct pa_bluetooth_adapter pa_bluetooth_adapter;

            
            typedef struct pa_bluetooth_discovery pa_bluetooth_discovery;

            
            typedef struct pa_bluetooth_backend pa_bluetooth_backend;

            
            typedef struct pa_upower_backend pa_upower_backend;


            typedef enum pa_bluetooth_hook {

            
                PA_BLUETOOTH_HOOK_ADAPTER_UUIDS_CHANGED,            /* Call data: pa_bluetooth_adapter */

            
                PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED,        /* Call data: pa_bluetooth_device */

            
                PA_BLUETOOTH_HOOK_DEVICE_UNLINK,                    /* Call data: pa_bluetooth_device */

            
                PA_BLUETOOTH_HOOK_DEVICE_BATTERY_LEVEL_CHANGED,     /* Call data: pa_bluetooth_device */

            
                PA_BLUETOOTH_HOOK_HOST_BATTERY_LEVEL_CHANGED,       /* Call data: pa_upower_backend */

            
                PA_BLUETOOTH_HOOK_TRANSPORT_STATE_CHANGED,          /* Call data: pa_bluetooth_transport */

            
                PA_BLUETOOTH_HOOK_TRANSPORT_SOURCE_VOLUME_CHANGED,  /* Call data: pa_bluetooth_transport */

            
                PA_BLUETOOTH_HOOK_TRANSPORT_SINK_VOLUME_CHANGED,    /* Call data: pa_bluetooth_transport */

            
                PA_BLUETOOTH_HOOK_MAX

            
            } pa_bluetooth_hook_t;


            typedef enum profile {

            
                PA_BLUETOOTH_PROFILE_A2DP_SINK,

            
                PA_BLUETOOTH_PROFILE_A2DP_SOURCE,

            
                PA_BLUETOOTH_PROFILE_HSP_HS,

            
                PA_BLUETOOTH_PROFILE_HSP_AG,

            
                PA_BLUETOOTH_PROFILE_HFP_HF,

            
                PA_BLUETOOTH_PROFILE_HFP_AG,

            
                PA_BLUETOOTH_PROFILE_OFF

            
            } pa_bluetooth_profile_t;

            
            #define PA_BLUETOOTH_PROFILE_COUNT PA_BLUETOOTH_PROFILE_OFF


            typedef enum pa_bluetooth_profile_status {

            
              PA_BLUETOOTH_PROFILE_STATUS_INACTIVE,

            
              PA_BLUETOOTH_PROFILE_STATUS_ACTIVE,

            
              PA_BLUETOOTH_PROFILE_STATUS_REGISTERING,

            
              PA_BLUETOOTH_PROFILE_STATUS_REGISTERED

            
            } pa_bluetooth_profile_status_t;


            typedef enum pa_bluetooth_transport_state {

            
                PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED,

            
                PA_BLUETOOTH_TRANSPORT_STATE_IDLE,

            
                PA_BLUETOOTH_TRANSPORT_STATE_PLAYING

            
            } pa_bluetooth_transport_state_t;


            typedef int (*pa_bluetooth_transport_acquire_cb)(pa_bluetooth_transport *t, bool optional, size_t *imtu, size_t *omtu);

            
            typedef void (*pa_bluetooth_transport_release_cb)(pa_bluetooth_transport *t);

            
            typedef void (*pa_bluetooth_transport_destroy_cb)(pa_bluetooth_transport *t);

            
            typedef pa_volume_t (*pa_bluetooth_transport_set_volume_cb)(pa_bluetooth_transport *t, pa_volume_t volume);

            
            typedef ssize_t (*pa_bluetooth_transport_write_cb)(pa_bluetooth_transport *t, int fd, const void* buffer, size_t size, size_t write_mtu);

            
            typedef int (*pa_bluetooth_transport_setsockopt_cb)(pa_bluetooth_transport *t, int fd);


            struct pa_bluetooth_transport {

            
                pa_bluetooth_device *device;


                char *owner;

            
                char *path;

            
                pa_bluetooth_profile_t profile;


                void *config;

            
                size_t config_size;


                const pa_bt_codec *bt_codec;

            
                int stream_write_type;

            
                size_t last_read_size;


                pa_volume_t source_volume;

            
                pa_volume_t sink_volume;


                pa_bluetooth_transport_state_t state;


                pa_bluetooth_transport_acquire_cb acquire;

            
                pa_bluetooth_transport_release_cb release;

            
                pa_bluetooth_transport_write_cb write;

            
                pa_bluetooth_transport_setsockopt_cb setsockopt;

            
                pa_bluetooth_transport_destroy_cb destroy;

            
                pa_bluetooth_transport_set_volume_cb set_sink_volume;

            
                pa_bluetooth_transport_set_volume_cb set_source_volume;

            
                void *userdata;

            
            };


            struct pa_bluetooth_device {

            
                pa_bluetooth_discovery *discovery;

            
                pa_bluetooth_adapter *adapter;


                bool enable_hfp_hf;

            
                bool properties_received;

            
                bool tried_to_link_with_adapter;

            
                bool valid;

            
                bool autodetect_mtu;

            
                bool codec_switching_in_progress;

            
                bool avrcp_absolute_volume;

            
                uint32_t output_rate_refresh_interval_ms;


                /* Device information */

            
                char *path;

            
                char *adapter_path;

            
                char *alias;

            
                char *address;

            
                uint32_t class_of_device;

            
                pa_hashmap *uuids; /* char* -> char* (hashmap-as-a-set) */

            
                /* pa_a2dp_codec_id* -> pa_hashmap ( char* (remote endpoint) -> struct a2dp_codec_capabilities* ) */

            
                pa_hashmap *a2dp_sink_endpoints;

            
                pa_hashmap *a2dp_source_endpoints;


                pa_bluetooth_transport *transports[PA_BLUETOOTH_PROFILE_COUNT];


                pa_time_event *wait_for_profiles_timer;


                bool has_battery_level;

            
                uint8_t battery_level;

            
                const char *battery_source;

            
            };


            struct pa_bluetooth_adapter {

            
                pa_bluetooth_discovery *discovery;

            
                char *path;

            
                char *address;

            
                pa_hashmap *uuids; /* char* -> char* (hashmap-as-a-set) */


                bool valid;

            
                bool application_registered;

            
                bool battery_provider_registered;

            
            };


            #ifdef HAVE_BLUEZ_5_OFONO_HEADSET

            
            pa_bluetooth_backend *pa_bluetooth_ofono_backend_new(pa_core *c, pa_bluetooth_discovery *y);

            
            void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *b);

            
            #else

            
            static inline pa_bluetooth_backend *pa_bluetooth_ofono_backend_new(pa_core *c, pa_bluetooth_discovery *y) {

            
                return NULL;

            
            }

            
            static inline void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *b) {}

            
            #endif


            #ifdef HAVE_BLUEZ_5_NATIVE_HEADSET

            
            pa_bluetooth_backend *pa_bluetooth_native_backend_new(pa_core *c, pa_bluetooth_discovery *y, bool enable_shared_profiles);

            
            void pa_bluetooth_native_backend_free(pa_bluetooth_backend *b);

            
            void pa_bluetooth_native_backend_enable_shared_profiles(pa_bluetooth_backend *b, bool enable);

            
            #else

            
            static inline pa_bluetooth_backend *pa_bluetooth_native_backend_new(pa_core *c, pa_bluetooth_discovery *y, bool enable_shared_profiles) {

            
                return NULL;

            
            }

            
            static inline void pa_bluetooth_native_backend_free(pa_bluetooth_backend *b) {}

            
            static inline void pa_bluetooth_native_backend_enable_shared_profiles(pa_bluetooth_backend *b, bool enable) {}

            
            #endif


            pa_bluetooth_profile_status_t profile_status_get(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile);

            
            void profile_status_set(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile, pa_bluetooth_profile_status_t status);


            pa_bluetooth_transport *pa_bluetooth_transport_new(pa_bluetooth_device *d, const char *owner, const char *path,

            
                                                               pa_bluetooth_profile_t p, const uint8_t *config, size_t size);


            void pa_bluetooth_transport_reconfigure(pa_bluetooth_transport *t, const pa_bt_codec *bt_codec,

            
                                                    pa_bluetooth_transport_write_cb write_cb, pa_bluetooth_transport_setsockopt_cb setsockopt_cb);


            void pa_bluetooth_transport_set_state(pa_bluetooth_transport *t, pa_bluetooth_transport_state_t state);

            
            void pa_bluetooth_transport_put(pa_bluetooth_transport *t);

            
            void pa_bluetooth_transport_unlink(pa_bluetooth_transport *t);

            
            void pa_bluetooth_transport_free(pa_bluetooth_transport *t);

            
            void pa_bluetooth_transport_load_a2dp_sink_volume(pa_bluetooth_transport *t);


            bool pa_bluetooth_device_supports_profile(const pa_bluetooth_device *device, pa_bluetooth_profile_t profile);

            
            bool pa_bluetooth_device_any_transport_connected(const pa_bluetooth_device *d);

            
            bool pa_bluetooth_device_switch_codec(pa_bluetooth_device *device, pa_bluetooth_profile_t profile, pa_hashmap *capabilities_hashmap, const pa_a2dp_endpoint_conf *endpoint_conf, void (*codec_switch_cb)(bool, pa_bluetooth_profile_t profile, void *), void *userdata);

            
            void pa_bluetooth_device_report_battery_level(pa_bluetooth_device *d, uint8_t level, const char *reporting_source);

            
            void pa_bluetooth_device_deregister_battery(pa_bluetooth_device *d);


            pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_discovery *y, const char *path);

            
            pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery *y, const char *remote, const char *local);


            pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook);


            const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile);

            
            bool pa_bluetooth_profile_should_attenuate_volume(pa_bluetooth_profile_t profile);

            
            bool pa_bluetooth_profile_is_a2dp(pa_bluetooth_profile_t profile);


            static inline bool pa_bluetooth_uuid_is_hsp_hs(const char *uuid) {

            
                return pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS) || pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS_ALT);

            
            }


            #define HEADSET_BACKEND_OFONO 0

            
            #define HEADSET_BACKEND_NATIVE 1

            
            #define HEADSET_BACKEND_AUTO 2


            pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *core, int headset_backend, bool enable_native_hsp_hs, bool enable_native_hfp_hf, bool enable_msbc);

            
            pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y);

            
            void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y);

            
            void pa_bluetooth_discovery_set_ofono_running(pa_bluetooth_discovery *y, bool is_running);

            
            bool pa_bluetooth_discovery_get_enable_native_hsp_hs(pa_bluetooth_discovery *y);

            
            bool pa_bluetooth_discovery_get_enable_native_hfp_hf(pa_bluetooth_discovery *y);

            
            bool pa_bluetooth_discovery_get_enable_msbc(pa_bluetooth_discovery *y);

            
            pa_hashmap* pa_bluetooth_discovery_get_transports(pa_bluetooth_discovery *y);

            
            #endif
	#ifndef foobluez5utilhfoo
	#define foobluez5utilhfoo

	/***
	This file is part of PulseAudio.

	Copyright 2008-2013 João Paulo Rechi Vita
	Copyrigth 2018-2019 Pali Rohár <pali.rohar@gmail.com>

	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, see <http://www.gnu.org/licenses/>.
	***/

	#include <pulsecore/core.h>

	#include "a2dp-codec-util.h"

	#define BLUEZ_SERVICE "org.bluez"
	#define BLUEZ_ADAPTER_INTERFACE BLUEZ_SERVICE ".Adapter1"
	#define BLUEZ_BATTERY_PROVIDER_INTERFACE BLUEZ_SERVICE ".BatteryProvider1"
	#define BLUEZ_BATTERY_PROVIDER_MANAGER_INTERFACE BLUEZ_SERVICE ".BatteryProviderManager1"
	#define BLUEZ_DEVICE_INTERFACE BLUEZ_SERVICE ".Device1"
	#define BLUEZ_MEDIA_ENDPOINT_INTERFACE BLUEZ_SERVICE ".MediaEndpoint1"
	#define BLUEZ_MEDIA_INTERFACE BLUEZ_SERVICE ".Media1"
	#define BLUEZ_MEDIA_TRANSPORT_INTERFACE BLUEZ_SERVICE ".MediaTransport1"
	#define BLUEZ_PROFILE_INTERFACE BLUEZ_SERVICE ".Profile1"
	#define BLUEZ_PROFILE_MANAGER_INTERFACE BLUEZ_SERVICE ".ProfileManager1"

	#define BLUEZ_ERROR_INVALID_ARGUMENTS BLUEZ_SERVICE ".Error.InvalidArguments"
	#define BLUEZ_ERROR_NOT_AVAILABLE BLUEZ_SERVICE ".Error.NotAvailable"
	#define BLUEZ_ERROR_NOT_SUPPORTED BLUEZ_SERVICE ".Error.NotSupported"

	#define PA_BLUETOOTH_UUID_A2DP_SOURCE "0000110a-0000-1000-8000-00805f9b34fb"
	#define PA_BLUETOOTH_UUID_A2DP_SINK "0000110b-0000-1000-8000-00805f9b34fb"

	/* There are two HSP HS UUIDs. The first one (older?) is used both as the HSP
	* profile identifier and as the HS role identifier, while the second one is
	* only used to identify the role. As far as PulseAudio is concerned, the two
	* UUIDs mean exactly the same thing. */
	#define PA_BLUETOOTH_UUID_HSP_HS "00001108-0000-1000-8000-00805f9b34fb"
	#define PA_BLUETOOTH_UUID_HSP_HS_ALT "00001131-0000-1000-8000-00805f9b34fb"

	#define PA_BLUETOOTH_UUID_HSP_AG "00001112-0000-1000-8000-00805f9b34fb"
	#define PA_BLUETOOTH_UUID_HFP_HF "0000111e-0000-1000-8000-00805f9b34fb"
	#define PA_BLUETOOTH_UUID_HFP_AG "0000111f-0000-1000-8000-00805f9b34fb"

	#define A2DP_MAX_GAIN 127
	#define HSP_MAX_GAIN 15

	typedef struct pa_bluetooth_transport pa_bluetooth_transport;
	typedef struct pa_bluetooth_device pa_bluetooth_device;
	typedef struct pa_bluetooth_adapter pa_bluetooth_adapter;
	typedef struct pa_bluetooth_discovery pa_bluetooth_discovery;
	typedef struct pa_bluetooth_backend pa_bluetooth_backend;
	typedef struct pa_upower_backend pa_upower_backend;

	typedef enum pa_bluetooth_hook {
	PA_BLUETOOTH_HOOK_ADAPTER_UUIDS_CHANGED, /* Call data: pa_bluetooth_adapter */
	PA_BLUETOOTH_HOOK_DEVICE_CONNECTION_CHANGED, /* Call data: pa_bluetooth_device */
	PA_BLUETOOTH_HOOK_DEVICE_UNLINK, /* Call data: pa_bluetooth_device */
	PA_BLUETOOTH_HOOK_DEVICE_BATTERY_LEVEL_CHANGED, /* Call data: pa_bluetooth_device */
	PA_BLUETOOTH_HOOK_HOST_BATTERY_LEVEL_CHANGED, /* Call data: pa_upower_backend */
	PA_BLUETOOTH_HOOK_TRANSPORT_STATE_CHANGED, /* Call data: pa_bluetooth_transport */
	PA_BLUETOOTH_HOOK_TRANSPORT_SOURCE_VOLUME_CHANGED, /* Call data: pa_bluetooth_transport */
	PA_BLUETOOTH_HOOK_TRANSPORT_SINK_VOLUME_CHANGED, /* Call data: pa_bluetooth_transport */
	PA_BLUETOOTH_HOOK_MAX
	} pa_bluetooth_hook_t;

	typedef enum profile {
	PA_BLUETOOTH_PROFILE_A2DP_SINK,
	PA_BLUETOOTH_PROFILE_A2DP_SOURCE,
	PA_BLUETOOTH_PROFILE_HSP_HS,
	PA_BLUETOOTH_PROFILE_HSP_AG,
	PA_BLUETOOTH_PROFILE_HFP_HF,
	PA_BLUETOOTH_PROFILE_HFP_AG,
	PA_BLUETOOTH_PROFILE_OFF
	} pa_bluetooth_profile_t;
	#define PA_BLUETOOTH_PROFILE_COUNT PA_BLUETOOTH_PROFILE_OFF

	typedef enum pa_bluetooth_profile_status {
	PA_BLUETOOTH_PROFILE_STATUS_INACTIVE,
	PA_BLUETOOTH_PROFILE_STATUS_ACTIVE,
	PA_BLUETOOTH_PROFILE_STATUS_REGISTERING,
	PA_BLUETOOTH_PROFILE_STATUS_REGISTERED
	} pa_bluetooth_profile_status_t;

	typedef enum pa_bluetooth_transport_state {
	PA_BLUETOOTH_TRANSPORT_STATE_DISCONNECTED,
	PA_BLUETOOTH_TRANSPORT_STATE_IDLE,
	PA_BLUETOOTH_TRANSPORT_STATE_PLAYING
	} pa_bluetooth_transport_state_t;

	typedef int (pa_bluetooth_transport_acquire_cb)(pa_bluetooth_transport t, bool optional, size_t imtu, size_t omtu);
	typedef void (pa_bluetooth_transport_release_cb)(pa_bluetooth_transport t);
	typedef void (pa_bluetooth_transport_destroy_cb)(pa_bluetooth_transport t);
	typedef pa_volume_t (pa_bluetooth_transport_set_volume_cb)(pa_bluetooth_transport t, pa_volume_t volume);
	typedef ssize_t (pa_bluetooth_transport_write_cb)(pa_bluetooth_transport t, int fd, const void* buffer, size_t size, size_t write_mtu);
	typedef int (pa_bluetooth_transport_setsockopt_cb)(pa_bluetooth_transport t, int fd);

	struct pa_bluetooth_transport {
	pa_bluetooth_device *device;

	char *owner;
	char *path;
	pa_bluetooth_profile_t profile;

	void *config;
	size_t config_size;

	const pa_bt_codec *bt_codec;
	int stream_write_type;
	size_t last_read_size;

	pa_volume_t source_volume;
	pa_volume_t sink_volume;

	pa_bluetooth_transport_state_t state;

	pa_bluetooth_transport_acquire_cb acquire;
	pa_bluetooth_transport_release_cb release;
	pa_bluetooth_transport_write_cb write;
	pa_bluetooth_transport_setsockopt_cb setsockopt;
	pa_bluetooth_transport_destroy_cb destroy;
	pa_bluetooth_transport_set_volume_cb set_sink_volume;
	pa_bluetooth_transport_set_volume_cb set_source_volume;
	void *userdata;
	};

	struct pa_bluetooth_device {
	pa_bluetooth_discovery *discovery;
	pa_bluetooth_adapter *adapter;

	bool enable_hfp_hf;
	bool properties_received;
	bool tried_to_link_with_adapter;
	bool valid;
	bool autodetect_mtu;
	bool codec_switching_in_progress;
	bool avrcp_absolute_volume;
	uint32_t output_rate_refresh_interval_ms;

	/* Device information */
	char *path;
	char *adapter_path;
	char *alias;
	char *address;
	uint32_t class_of_device;
	pa_hashmap uuids; / char* -> char* (hashmap-as-a-set) */
	/* pa_a2dp_codec_id* -> pa_hashmap ( char* (remote endpoint) -> struct a2dp_codec_capabilities* ) */
	pa_hashmap *a2dp_sink_endpoints;
	pa_hashmap *a2dp_source_endpoints;

	pa_bluetooth_transport *transports[PA_BLUETOOTH_PROFILE_COUNT];

	pa_time_event *wait_for_profiles_timer;

	bool has_battery_level;
	uint8_t battery_level;
	const char *battery_source;
	};

	struct pa_bluetooth_adapter {
	pa_bluetooth_discovery *discovery;
	char *path;
	char *address;
	pa_hashmap uuids; / char* -> char* (hashmap-as-a-set) */

	bool valid;
	bool application_registered;
	bool battery_provider_registered;
	};

	#ifdef HAVE_BLUEZ_5_OFONO_HEADSET
	pa_bluetooth_backend pa_bluetooth_ofono_backend_new(pa_core c, pa_bluetooth_discovery *y);
	void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *b);
	#else
	static inline pa_bluetooth_backend pa_bluetooth_ofono_backend_new(pa_core c, pa_bluetooth_discovery *y) {
	return NULL;
	}
	static inline void pa_bluetooth_ofono_backend_free(pa_bluetooth_backend *b) {}
	#endif

	#ifdef HAVE_BLUEZ_5_NATIVE_HEADSET
	pa_bluetooth_backend pa_bluetooth_native_backend_new(pa_core c, pa_bluetooth_discovery *y, bool enable_shared_profiles);
	void pa_bluetooth_native_backend_free(pa_bluetooth_backend *b);
	void pa_bluetooth_native_backend_enable_shared_profiles(pa_bluetooth_backend *b, bool enable);
	#else
	static inline pa_bluetooth_backend pa_bluetooth_native_backend_new(pa_core c, pa_bluetooth_discovery *y, bool enable_shared_profiles) {
	return NULL;
	}
	static inline void pa_bluetooth_native_backend_free(pa_bluetooth_backend *b) {}
	static inline void pa_bluetooth_native_backend_enable_shared_profiles(pa_bluetooth_backend *b, bool enable) {}
	#endif

	pa_bluetooth_profile_status_t profile_status_get(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile);
	void profile_status_set(pa_bluetooth_discovery *y, pa_bluetooth_profile_t profile, pa_bluetooth_profile_status_t status);

	pa_bluetooth_transport pa_bluetooth_transport_new(pa_bluetooth_device d, const char owner, const char path,
	pa_bluetooth_profile_t p, const uint8_t *config, size_t size);

	void pa_bluetooth_transport_reconfigure(pa_bluetooth_transport t, const pa_bt_codec bt_codec,
	pa_bluetooth_transport_write_cb write_cb, pa_bluetooth_transport_setsockopt_cb setsockopt_cb);

	void pa_bluetooth_transport_set_state(pa_bluetooth_transport *t, pa_bluetooth_transport_state_t state);
	void pa_bluetooth_transport_put(pa_bluetooth_transport *t);
	void pa_bluetooth_transport_unlink(pa_bluetooth_transport *t);
	void pa_bluetooth_transport_free(pa_bluetooth_transport *t);
	void pa_bluetooth_transport_load_a2dp_sink_volume(pa_bluetooth_transport *t);

	bool pa_bluetooth_device_supports_profile(const pa_bluetooth_device *device, pa_bluetooth_profile_t profile);
	bool pa_bluetooth_device_any_transport_connected(const pa_bluetooth_device *d);
	bool pa_bluetooth_device_switch_codec(pa_bluetooth_device device, pa_bluetooth_profile_t profile, pa_hashmap capabilities_hashmap, const pa_a2dp_endpoint_conf endpoint_conf, void (codec_switch_cb)(bool, pa_bluetooth_profile_t profile, void ), void userdata);
	void pa_bluetooth_device_report_battery_level(pa_bluetooth_device d, uint8_t level, const char reporting_source);
	void pa_bluetooth_device_deregister_battery(pa_bluetooth_device *d);

	pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_path(pa_bluetooth_discovery y, const char path);
	pa_bluetooth_device* pa_bluetooth_discovery_get_device_by_address(pa_bluetooth_discovery y, const char remote, const char *local);

	pa_hook* pa_bluetooth_discovery_hook(pa_bluetooth_discovery *y, pa_bluetooth_hook_t hook);

	const char *pa_bluetooth_profile_to_string(pa_bluetooth_profile_t profile);
	bool pa_bluetooth_profile_should_attenuate_volume(pa_bluetooth_profile_t profile);
	bool pa_bluetooth_profile_is_a2dp(pa_bluetooth_profile_t profile);

	static inline bool pa_bluetooth_uuid_is_hsp_hs(const char *uuid) {
	return pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS) \|\| pa_streq(uuid, PA_BLUETOOTH_UUID_HSP_HS_ALT);
	}

	#define HEADSET_BACKEND_OFONO 0
	#define HEADSET_BACKEND_NATIVE 1
	#define HEADSET_BACKEND_AUTO 2

	pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *core, int headset_backend, bool enable_native_hsp_hs, bool enable_native_hfp_hf, bool enable_msbc);
	pa_bluetooth_discovery* pa_bluetooth_discovery_ref(pa_bluetooth_discovery *y);
	void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y);
	void pa_bluetooth_discovery_set_ofono_running(pa_bluetooth_discovery *y, bool is_running);
	bool pa_bluetooth_discovery_get_enable_native_hsp_hs(pa_bluetooth_discovery *y);
	bool pa_bluetooth_discovery_get_enable_native_hfp_hf(pa_bluetooth_discovery *y);
	bool pa_bluetooth_discovery_get_enable_msbc(pa_bluetooth_discovery *y);
	pa_hashmap* pa_bluetooth_discovery_get_transports(pa_bluetooth_discovery *y);
	#endif