/*

 * Copyright (C) 2013 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

#ifndef ANDROID_INCLUDE_BT_GATT_CLIENT_H

#define ANDROID_INCLUDE_BT_GATT_CLIENT_H

#include <stdint.h>

#include "bt_gatt_types.h"

__BEGIN_DECLS

/**

 * Buffer sizes for maximum attribute length and maximum read/write

 * operation buffer size.

 */

#define BTGATT_MAX_ATTR_LEN 600

/** Buffer type for unformatted reads/writes */

typedef struct

{

    uint8_t             value[BTGATT_MAX_ATTR_LEN];

    uint16_t            len;

} btgatt_unformatted_value_t;

/** Parameters for GATT read operations */

typedef struct

{

    btgatt_srvc_id_t    srvc_id;

    btgatt_gatt_id_t    char_id;

    btgatt_gatt_id_t    descr_id;

    btgatt_unformatted_value_t value;

    uint16_t            value_type;

    uint8_t             status;

} btgatt_read_params_t;

/** Parameters for GATT write operations */

typedef struct

{

    btgatt_srvc_id_t    srvc_id;

    btgatt_gatt_id_t    char_id;

    btgatt_gatt_id_t    descr_id;

    uint8_t             status;

} btgatt_write_params_t;

/** Attribute change notification parameters */

typedef struct

{

    uint8_t             value[BTGATT_MAX_ATTR_LEN];

    bt_bdaddr_t         bda;

    btgatt_srvc_id_t    srvc_id;

    btgatt_gatt_id_t    char_id;

    uint16_t            len;

    uint8_t             is_notify;

} btgatt_notify_params_t;

typedef struct

{

    bt_bdaddr_t        *bda1;

    bt_uuid_t          *uuid1;

    uint16_t            u1;

    uint16_t            u2;

    uint16_t            u3;

    uint16_t            u4;

    uint16_t            u5;

} btgatt_test_params_t;

/** BT-GATT Client callback structure. */

/** Callback invoked in response to register_client */

typedef void (*register_client_callback)(int status, int client_if,

                bt_uuid_t *app_uuid);

/** Callback for scan results */

typedef void (*scan_result_callback)(bt_bdaddr_t* bda, int rssi, uint8_t* adv_data);

/** GATT open callback invoked in response to open */

typedef void (*connect_callback)(int conn_id, int status, int client_if, bt_bdaddr_t* bda);

/** Callback invoked in response to close */

typedef void (*disconnect_callback)(int conn_id, int status,

                int client_if, bt_bdaddr_t* bda);

/**

 * Invoked in response to search_service when the GATT service search

 * has been completed.

 */

typedef void (*search_complete_callback)(int conn_id, int status);

/** Reports GATT services on a remote device */

typedef void (*search_result_callback)( int conn_id, btgatt_srvc_id_t *srvc_id);

/** GATT characteristic enumeration result callback */

typedef void (*get_characteristic_callback)(int conn_id, int status,

                btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                int char_prop);

/** GATT descriptor enumeration result callback */

typedef void (*get_descriptor_callback)(int conn_id, int status,

                btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                btgatt_gatt_id_t *descr_id);

/** GATT included service enumeration result callback */

typedef void (*get_included_service_callback)(int conn_id, int status,

                btgatt_srvc_id_t *srvc_id, btgatt_srvc_id_t *incl_srvc_id);

/** Callback invoked in response to [de]register_for_notification */

typedef void (*register_for_notification_callback)(int conn_id,

                int registered, int status, btgatt_srvc_id_t *srvc_id,

                btgatt_gatt_id_t *char_id);

/**

 * Remote device notification callback, invoked when a remote device sends

 * a notification or indication that a client has registered for.

 */

typedef void (*notify_callback)(int conn_id, btgatt_notify_params_t *p_data);

/** Reports result of a GATT read operation */

typedef void (*read_characteristic_callback)(int conn_id, int status,

                btgatt_read_params_t *p_data);

/** GATT write characteristic operation callback */

typedef void (*write_characteristic_callback)(int conn_id, int status,

                btgatt_write_params_t *p_data);

/** GATT execute prepared write callback */

typedef void (*execute_write_callback)(int conn_id, int status);

/** Callback invoked in response to read_descriptor */

typedef void (*read_descriptor_callback)(int conn_id, int status,

                btgatt_read_params_t *p_data);

/** Callback invoked in response to write_descriptor */

typedef void (*write_descriptor_callback)(int conn_id, int status,

                btgatt_write_params_t *p_data);

/** Callback triggered in response to read_remote_rssi */

typedef void (*read_remote_rssi_callback)(int client_if, bt_bdaddr_t* bda,

                                          int rssi, int status);

/**

 * Callback indicating the status of a listen() operation

 */

typedef void (*listen_callback)(int status, int server_if);

/** Callback invoked when the MTU for a given connection changes */

typedef void (*configure_mtu_callback)(int conn_id, int status, int mtu);

/** Callback invoked when a scan filter configuration command has completed */

typedef void (*scan_filter_cfg_callback)(int action, int client_if, int status, int filt_type,

                                         int avbl_space);

/** Callback invoked when scan param has been added, cleared, or deleted */

typedef void (*scan_filter_param_callback)(int action, int client_if, int status,

                                         int avbl_space);

/** Callback invoked when a scan filter configuration command has completed */

typedef void (*scan_filter_status_callback)(int enable, int client_if, int status);

/** Callback invoked when multi-adv enable operation has completed */

typedef void (*multi_adv_enable_callback)(int client_if, int status);

/** Callback invoked when multi-adv param update operation has completed */

typedef void (*multi_adv_update_callback)(int client_if, int status);

/** Callback invoked when multi-adv instance data set operation has completed */

typedef void (*multi_adv_data_callback)(int client_if, int status);

/** Callback invoked when multi-adv disable operation has completed */

typedef void (*multi_adv_disable_callback)(int client_if, int status);

/**

 * Callback notifying an application that a remote device connection is currently congested

 * and cannot receive any more data. An application should avoid sending more data until

 * a further callback is received indicating the congestion status has been cleared.

 */

typedef void (*congestion_callback)(int conn_id, bool congested);

/** Callback invoked when batchscan storage config operation has completed */

typedef void (*batchscan_cfg_storage_callback)(int client_if, int status);

/** Callback invoked when batchscan enable / disable operation has completed */

typedef void (*batchscan_enable_disable_callback)(int action, int client_if, int status);

/** Callback invoked when batchscan reports are obtained */

typedef void (*batchscan_reports_callback)(int client_if, int status, int report_format,

                                           int num_records, int data_len, uint8_t* rep_data);

/** Callback invoked when batchscan storage threshold limit is crossed */

typedef void (*batchscan_threshold_callback)(int client_if);

/** Track ADV VSE callback invoked when tracked device is found or lost */

typedef void (*track_adv_event_callback)(int client_if, int filt_index, int addr_type,

                                             bt_bdaddr_t* bda, int adv_state);

typedef struct {

    register_client_callback            register_client_cb;

    scan_result_callback                scan_result_cb;

    connect_callback                    open_cb;

    disconnect_callback                 close_cb;

    search_complete_callback            search_complete_cb;

    search_result_callback              search_result_cb;

    get_characteristic_callback         get_characteristic_cb;

    get_descriptor_callback             get_descriptor_cb;

    get_included_service_callback       get_included_service_cb;

    register_for_notification_callback  register_for_notification_cb;

    notify_callback                     notify_cb;

    read_characteristic_callback        read_characteristic_cb;

    write_characteristic_callback       write_characteristic_cb;

    read_descriptor_callback            read_descriptor_cb;

    write_descriptor_callback           write_descriptor_cb;

    execute_write_callback              execute_write_cb;

    read_remote_rssi_callback           read_remote_rssi_cb;

    listen_callback                     listen_cb;

    configure_mtu_callback              configure_mtu_cb;

    scan_filter_cfg_callback            scan_filter_cfg_cb;

    scan_filter_param_callback          scan_filter_param_cb;

    scan_filter_status_callback         scan_filter_status_cb;

    multi_adv_enable_callback           multi_adv_enable_cb;

    multi_adv_update_callback           multi_adv_update_cb;

    multi_adv_data_callback             multi_adv_data_cb;

    multi_adv_disable_callback          multi_adv_disable_cb;

    congestion_callback                 congestion_cb;

    batchscan_cfg_storage_callback      batchscan_cfg_storage_cb;

    batchscan_enable_disable_callback   batchscan_enb_disable_cb;

    batchscan_reports_callback          batchscan_reports_cb;

    batchscan_threshold_callback        batchscan_threshold_cb;

    track_adv_event_callback            track_adv_event_cb;

} btgatt_client_callbacks_t;

/** Represents the standard BT-GATT client interface. */

typedef struct {

    /** Registers a GATT client application with the stack */

    bt_status_t (*register_client)( bt_uuid_t *uuid );

    /** Unregister a client application from the stack */

    bt_status_t (*unregister_client)(int client_if );

    /** Start or stop LE device scanning */

    bt_status_t (*scan)( bool start );

    /** Create a connection to a remote LE or dual-mode device */

    bt_status_t (*connect)( int client_if, const bt_bdaddr_t *bd_addr,

                         bool is_direct, int transport );

    /** Disconnect a remote device or cancel a pending connection */

    bt_status_t (*disconnect)( int client_if, const bt_bdaddr_t *bd_addr,

                    int conn_id);

    /** Start or stop advertisements to listen for incoming connections */

    bt_status_t (*listen)(int client_if, bool start);

    /** Clear the attribute cache for a given device */

    bt_status_t (*refresh)( int client_if, const bt_bdaddr_t *bd_addr );

    /**

     * Enumerate all GATT services on a connected device.

     * Optionally, the results can be filtered for a given UUID.

     */

    bt_status_t (*search_service)(int conn_id, bt_uuid_t *filter_uuid );

    /**

     * Enumerate included services for a given service.

     * Set start_incl_srvc_id to NULL to get the first included service.

     */

    bt_status_t (*get_included_service)( int conn_id, btgatt_srvc_id_t *srvc_id,

                                         btgatt_srvc_id_t *start_incl_srvc_id);

    /**

     * Enumerate characteristics for a given service.

     * Set start_char_id to NULL to get the first characteristic.

     */

    bt_status_t (*get_characteristic)( int conn_id,

                    btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *start_char_id);

    /**

     * Enumerate descriptors for a given characteristic.

     * Set start_descr_id to NULL to get the first descriptor.

     */

    bt_status_t (*get_descriptor)( int conn_id,

                    btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                    btgatt_gatt_id_t *start_descr_id);

    /** Read a characteristic on a remote device */

    bt_status_t (*read_characteristic)( int conn_id,

                    btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                    int auth_req );

    /** Write a remote characteristic */

    bt_status_t (*write_characteristic)(int conn_id,

                    btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                    int write_type, int len, int auth_req,

                    char* p_value);

    /** Read the descriptor for a given characteristic */

    bt_status_t (*read_descriptor)(int conn_id,

                    btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                    btgatt_gatt_id_t *descr_id, int auth_req);

    /** Write a remote descriptor for a given characteristic */

    bt_status_t (*write_descriptor)( int conn_id,

                    btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,

                    btgatt_gatt_id_t *descr_id, int write_type, int len,

                    int auth_req, char* p_value);

    /** Execute a prepared write operation */

    bt_status_t (*execute_write)(int conn_id, int execute);

    /**

     * Register to receive notifications or indications for a given

     * characteristic

     */

    bt_status_t (*register_for_notification)( int client_if,

                    const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,

                    btgatt_gatt_id_t *char_id);

    /** Deregister a previous request for notifications/indications */

    bt_status_t (*deregister_for_notification)( int client_if,

                    const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,

                    btgatt_gatt_id_t *char_id);

    /** Request RSSI for a given remote device */

    bt_status_t (*read_remote_rssi)( int client_if, const bt_bdaddr_t *bd_addr);

    /** Setup scan filter params */

    bt_status_t (*scan_filter_param_setup)(int client_if, int action, int filt_index, int feat_seln,

                                      int list_logic_type, int filt_logic_type, int rssi_high_thres,

                                      int rssi_low_thres, int dely_mode, int found_timeout,

                                      int lost_timeout, int found_timeout_cnt);

    /** Configure a scan filter condition  */

    bt_status_t (*scan_filter_add_remove)(int client_if, int action, int filt_type,

                                   int filt_index, int company_id,

                                   int company_id_mask, const bt_uuid_t *p_uuid,

                                   const bt_uuid_t *p_uuid_mask, const bt_bdaddr_t *bd_addr,

                                   char addr_type, int data_len, char* p_data, int mask_len,

                                   char* p_mask);

    /** Clear all scan filter conditions for specific filter index*/

    bt_status_t (*scan_filter_clear)(int client_if, int filt_index);

    /** Enable / disable scan filter feature*/

    bt_status_t (*scan_filter_enable)(int client_if, bool enable);

    /** Determine the type of the remote device (LE, BR/EDR, Dual-mode) */

    int (*get_device_type)( const bt_bdaddr_t *bd_addr );

    /** Set the advertising data or scan response data */

    bt_status_t (*set_adv_data)(int client_if, bool set_scan_rsp, bool include_name,

                    bool include_txpower, int min_interval, int max_interval, int appearance,

                    uint16_t manufacturer_len, char* manufacturer_data,

                    uint16_t service_data_len, char* service_data,

                    uint16_t service_uuid_len, char* service_uuid);

    /** Configure the MTU for a given connection */

    bt_status_t (*configure_mtu)(int conn_id, int mtu);

    /** Request a connection parameter update */

    bt_status_t (*conn_parameter_update)(const bt_bdaddr_t *bd_addr, int min_interval,

                    int max_interval, int latency, int timeout);

    /** Sets the LE scan interval and window in units of N*0.625 msec */

    bt_status_t (*set_scan_parameters)(int scan_interval, int scan_window);

    /* Setup the parameters as per spec, user manual specified values and enable multi ADV */

    bt_status_t (*multi_adv_enable)(int client_if, int min_interval,int max_interval,int adv_type,

                 int chnl_map, int tx_power, int timeout_s);

    /* Update the parameters as per spec, user manual specified values and restart multi ADV */

    bt_status_t (*multi_adv_update)(int client_if, int min_interval,int max_interval,int adv_type,

                 int chnl_map, int tx_power, int timeout_s);

    /* Setup the data for the specified instance */

    bt_status_t (*multi_adv_set_inst_data)(int client_if, bool set_scan_rsp, bool include_name,

                    bool incl_txpower, int appearance, int manufacturer_len,

                    char* manufacturer_data, int service_data_len,

                    char* service_data, int service_uuid_len, char* service_uuid);

    /* Disable the multi adv instance */

    bt_status_t (*multi_adv_disable)(int client_if);

    /* Configure the batchscan storage */

    bt_status_t (*batchscan_cfg_storage)(int client_if, int batch_scan_full_max,

        int batch_scan_trunc_max, int batch_scan_notify_threshold);

    /* Enable batchscan */

    bt_status_t (*batchscan_enb_batch_scan)(int client_if, int scan_mode,

        int scan_interval, int scan_window, int addr_type, int discard_rule);

    /* Disable batchscan */

    bt_status_t (*batchscan_dis_batch_scan)(int client_if);

    /* Read out batchscan reports */

    bt_status_t (*batchscan_read_reports)(int client_if, int scan_mode);

    /** Test mode interface */

    bt_status_t (*test_command)( int command, btgatt_test_params_t* params);

} btgatt_client_interface_t;

__END_DECLS

#endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */