/* Copyright (c) 2013-2015, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *     * Neither the name of The Linux Foundation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef GPS_EXTENDED_C_H
#define GPS_EXTENDED_C_H

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#include <ctype.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <hardware/gps.h>

/** Location has valid source information. */
#define LOCATION_HAS_SOURCE_INFO   0x0020
/** GpsLocation has valid "is indoor?" flag */
#define GPS_LOCATION_HAS_IS_INDOOR   0x0040
/** GpsLocation has valid floor number */
#define GPS_LOCATION_HAS_FLOOR_NUMBER   0x0080
/** GpsLocation has valid map URL*/
#define GPS_LOCATION_HAS_MAP_URL   0x0100
/** GpsLocation has valid map index */
#define GPS_LOCATION_HAS_MAP_INDEX   0x0200

/** Sizes for indoor fields */
#define GPS_LOCATION_MAP_URL_SIZE 400
#define GPS_LOCATION_MAP_INDEX_SIZE 16

/** Position source is ULP */
#define ULP_LOCATION_IS_FROM_HYBRID   0x0001
/** Position source is GNSS only */
#define ULP_LOCATION_IS_FROM_GNSS     0x0002
/** Position source is ZPP only */
#define ULP_LOCATION_IS_FROM_ZPP      0x0004
/** Position is from a Geofence Breach Event */
#define ULP_LOCATION_IS_FROM_GEOFENCE 0X0008
/** Position is from Hardware FLP */
#define ULP_LOCATION_IS_FROM_HW_FLP   0x0010
/** Position is from NLP */
#define ULP_LOCATION_IS_FROM_NLP      0x0020
/** Position is from PIP */
#define ULP_LOCATION_IS_FROM_PIP      0x0040

#define ULP_MIN_INTERVAL_INVALID 0xffffffff

/*Emergency SUPL*/
#define GPS_NI_TYPE_EMERGENCY_SUPL    4

#define AGPS_CERTIFICATE_MAX_LENGTH 2000
#define AGPS_CERTIFICATE_MAX_SLOTS 10

enum loc_registration_mask_status {
    LOC_REGISTRATION_MASK_ENABLED,
    LOC_REGISTRATION_MASK_DISABLED
};

typedef struct {
    /** set to sizeof(UlpLocation) */
    size_t          size;
    GpsLocation     gpsLocation;
    /* Provider indicator for HYBRID or GPS */
    uint16_t        position_source;
    /*allows HAL to pass additional information related to the location */
    int             rawDataSize;         /* in # of bytes */
    void            * rawData;
    bool            is_indoor;
    float           floor_number;
    char            map_url[GPS_LOCATION_MAP_URL_SIZE];
    unsigned char   map_index[GPS_LOCATION_MAP_INDEX_SIZE];
} UlpLocation;

/** AGPS type */
typedef int16_t AGpsExtType;
#define AGPS_TYPE_INVALID       -1
#define AGPS_TYPE_ANY           0
#define AGPS_TYPE_SUPL          1
#define AGPS_TYPE_C2K           2
#define AGPS_TYPE_WWAN_ANY      3
#define AGPS_TYPE_WIFI          4
#define AGPS_TYPE_SUPL_ES       5

/** SSID length */
#define SSID_BUF_SIZE (32+1)

typedef int16_t AGpsBearerType;
#define AGPS_APN_BEARER_INVALID    -1
#define AGPS_APN_BEARER_IPV4        0
#define AGPS_APN_BEARER_IPV6        1
#define AGPS_APN_BEARER_IPV4V6      2

/** GPS extended callback structure. */
typedef struct {
    /** set to sizeof(GpsCallbacks) */
    size_t      size;
    gps_set_capabilities set_capabilities_cb;
    gps_acquire_wakelock acquire_wakelock_cb;
    gps_release_wakelock release_wakelock_cb;
    gps_create_thread create_thread_cb;
    gps_request_utc_time request_utc_time_cb;
} GpsExtCallbacks;

/** Callback to report the xtra server url to the client.
 *  The client should use this url when downloading xtra unless overwritten
 *  in the gps.conf file
 */
typedef void (* report_xtra_server)(const char*, const char*, const char*);

/** Callback structure for the XTRA interface. */
typedef struct {
    gps_xtra_download_request download_request_cb;
    gps_create_thread create_thread_cb;
    report_xtra_server report_xtra_server_cb;
} GpsXtraExtCallbacks;

/** Represents the status of AGPS. */
typedef struct {
    /** set to sizeof(AGpsExtStatus) */
    size_t          size;

    AGpsExtType type;
    AGpsStatusValue status;
    uint32_t        ipv4_addr;
    struct sockaddr_storage addr;
    char            ssid[SSID_BUF_SIZE];
    char            password[SSID_BUF_SIZE];
} AGpsExtStatus;

/** Callback with AGPS status information.
 *  Can only be called from a thread created by create_thread_cb.
 */
typedef void (* agps_status_extended)(AGpsExtStatus* status);

/** Callback structure for the AGPS interface. */
typedef struct {
    agps_status_extended status_cb;
    gps_create_thread create_thread_cb;
} AGpsExtCallbacks;


/** GPS NI callback structure. */
typedef struct
{
    /**
     * Sends the notification request from HAL to GPSLocationProvider.
     */
    gps_ni_notify_callback notify_cb;
    gps_create_thread create_thread_cb;
} GpsNiExtCallbacks;

typedef enum loc_server_type {
    LOC_AGPS_CDMA_PDE_SERVER,
    LOC_AGPS_CUSTOM_PDE_SERVER,
    LOC_AGPS_MPC_SERVER,
    LOC_AGPS_SUPL_SERVER
} LocServerType;

typedef enum loc_position_mode_type {
    LOC_POSITION_MODE_INVALID = -1,
    LOC_POSITION_MODE_STANDALONE = 0,
    LOC_POSITION_MODE_MS_BASED,
    LOC_POSITION_MODE_MS_ASSISTED,
    LOC_POSITION_MODE_RESERVED_1,
    LOC_POSITION_MODE_RESERVED_2,
    LOC_POSITION_MODE_RESERVED_3,
    LOC_POSITION_MODE_RESERVED_4,
    LOC_POSITION_MODE_RESERVED_5

} LocPositionMode;

#define MIN_POSSIBLE_FIX_INTERVAL 1000 /* msec */

/** Flags to indicate which values are valid in a GpsLocationExtended. */
typedef uint16_t GpsLocationExtendedFlags;
/** GpsLocationExtended has valid pdop, hdop, vdop. */
#define GPS_LOCATION_EXTENDED_HAS_DOP 0x0001
/** GpsLocationExtended has valid altitude mean sea level. */
#define GPS_LOCATION_EXTENDED_HAS_ALTITUDE_MEAN_SEA_LEVEL 0x0002
/** UlpLocation has valid magnetic deviation. */
#define GPS_LOCATION_EXTENDED_HAS_MAG_DEV 0x0004
/** UlpLocation has valid mode indicator. */
#define GPS_LOCATION_EXTENDED_HAS_MODE_IND 0x0008
/** GpsLocationExtended has valid vertical uncertainty */
#define GPS_LOCATION_EXTENDED_HAS_VERT_UNC 0x0010
/** GpsLocationExtended has valid speed uncertainty */
#define GPS_LOCATION_EXTENDED_HAS_SPEED_UNC 0x0020
/** GpsLocationExtended has valid heading uncertainty */
#define GPS_LOCATION_EXTENDED_HAS_BEARING_UNC 0x0040
/** GpsLocationExtended has valid horizontal reliability */
#define GPS_LOCATION_EXTENDED_HAS_HOR_RELIABILITY 0x0080
/** GpsLocationExtended has valid vertical reliability */
#define GPS_LOCATION_EXTENDED_HAS_VERT_RELIABILITY 0x0100

typedef enum {
    LOC_RELIABILITY_NOT_SET = 0,
    LOC_RELIABILITY_VERY_LOW = 1,
    LOC_RELIABILITY_LOW = 2,
    LOC_RELIABILITY_MEDIUM = 3,
    LOC_RELIABILITY_HIGH = 4
}LocReliability;

/** Represents gps location extended. */
typedef struct {
    /** set to sizeof(GpsLocationExtended) */
    size_t          size;
    /** Contains GpsLocationExtendedFlags bits. */
    uint16_t        flags;
    /** Contains the Altitude wrt mean sea level */
    float           altitudeMeanSeaLevel;
    /** Contains Position Dilusion of Precision. */
    float           pdop;
    /** Contains Horizontal Dilusion of Precision. */
    float           hdop;
    /** Contains Vertical Dilusion of Precision. */
    float           vdop;
    /** Contains Magnetic Deviation. */
    float           magneticDeviation;
    /** vertical uncertainty in meters */
    float           vert_unc;
    /** speed uncertainty in m/s */
    float           speed_unc;
    /** heading uncertainty in degrees (0 to 359.999) */
    float           bearing_unc;
    /** horizontal reliability. */
    LocReliability  horizontal_reliability;
    /** vertical reliability. */
    LocReliability  vertical_reliability;
} GpsLocationExtended;

enum loc_sess_status {
    LOC_SESS_SUCCESS,
    LOC_SESS_INTERMEDIATE,
    LOC_SESS_FAILURE
};

typedef uint32_t LocPosTechMask;
#define LOC_POS_TECH_MASK_DEFAULT ((LocPosTechMask)0x00000000)
#define LOC_POS_TECH_MASK_SATELLITE ((LocPosTechMask)0x00000001)
#define LOC_POS_TECH_MASK_CELLID ((LocPosTechMask)0x00000002)
#define LOC_POS_TECH_MASK_WIFI ((LocPosTechMask)0x00000004)
#define LOC_POS_TECH_MASK_SENSORS ((LocPosTechMask)0x00000008)
#define LOC_POS_TECH_MASK_REFERENCE_LOCATION ((LocPosTechMask)0x00000010)
#define LOC_POS_TECH_MASK_INJECTED_COARSE_POSITION ((LocPosTechMask)0x00000020)
#define LOC_POS_TECH_MASK_AFLT ((LocPosTechMask)0x00000040)
#define LOC_POS_TECH_MASK_HYBRID ((LocPosTechMask)0x00000080)

typedef enum {
  LOC_ENG_IF_REQUEST_SENDER_ID_QUIPC = 0,
  LOC_ENG_IF_REQUEST_SENDER_ID_MSAPM,
  LOC_ENG_IF_REQUEST_SENDER_ID_MSAPU,
  LOC_ENG_IF_REQUEST_SENDER_ID_GPSONE_DAEMON,
  LOC_ENG_IF_REQUEST_SENDER_ID_MODEM,
  LOC_ENG_IF_REQUEST_SENDER_ID_UNKNOWN
} loc_if_req_sender_id_e_type;


#define smaller_of(a, b) (((a) > (b)) ? (b) : (a))
#define MAX_APN_LEN 100

// This will be overridden by the individual adapters
// if necessary.
#define DEFAULT_IMPL(rtv)                                     \
{                                                             \
    LOC_LOGD("%s: default implementation invoked", __func__); \
    return rtv;                                               \
}

enum loc_api_adapter_err {
    LOC_API_ADAPTER_ERR_SUCCESS             = 0,
    LOC_API_ADAPTER_ERR_GENERAL_FAILURE     = 1,
    LOC_API_ADAPTER_ERR_UNSUPPORTED         = 2,
    LOC_API_ADAPTER_ERR_INVALID_HANDLE      = 4,
    LOC_API_ADAPTER_ERR_INVALID_PARAMETER   = 5,
    LOC_API_ADAPTER_ERR_ENGINE_BUSY         = 6,
    LOC_API_ADAPTER_ERR_PHONE_OFFLINE       = 7,
    LOC_API_ADAPTER_ERR_TIMEOUT             = 8,
    LOC_API_ADAPTER_ERR_SERVICE_NOT_PRESENT = 9,
    LOC_API_ADAPTER_ERR_INTERNAL            = 10,

    /* equating engine down to phone offline, as they are the same errror */
    LOC_API_ADAPTER_ERR_ENGINE_DOWN         = LOC_API_ADAPTER_ERR_PHONE_OFFLINE,
    LOC_API_ADAPTER_ERR_FAILURE             = 101,
    LOC_API_ADAPTER_ERR_UNKNOWN
};

enum loc_api_adapter_event_index {
    LOC_API_ADAPTER_REPORT_POSITION = 0,               // Position report comes in loc_parsed_position_s_type
    LOC_API_ADAPTER_REPORT_SATELLITE,                  // Satellite in view report
    LOC_API_ADAPTER_REPORT_NMEA_1HZ,                   // NMEA report at 1HZ rate
    LOC_API_ADAPTER_REPORT_NMEA_POSITION,              // NMEA report at position report rate
    LOC_API_ADAPTER_REQUEST_NI_NOTIFY_VERIFY,          // NI notification/verification request
    LOC_API_ADAPTER_REQUEST_ASSISTANCE_DATA,           // Assistance data, eg: time, predicted orbits request
    LOC_API_ADAPTER_REQUEST_LOCATION_SERVER,           // Request for location server
    LOC_API_ADAPTER_REPORT_IOCTL,                      // Callback report for loc_ioctl
    LOC_API_ADAPTER_REPORT_STATUS,                     // Misc status report: eg, engine state
    LOC_API_ADAPTER_REQUEST_WIFI,                      //
    LOC_API_ADAPTER_SENSOR_STATUS,                     //
    LOC_API_ADAPTER_REQUEST_TIME_SYNC,                 //
    LOC_API_ADAPTER_REPORT_SPI,                        //
    LOC_API_ADAPTER_REPORT_NI_GEOFENCE,                //
    LOC_API_ADAPTER_GEOFENCE_GEN_ALERT,                //
    LOC_API_ADAPTER_REPORT_GENFENCE_BREACH,            //
    LOC_API_ADAPTER_PEDOMETER_CTRL,                    //
    LOC_API_ADAPTER_MOTION_CTRL,                       //
    LOC_API_ADAPTER_REQUEST_WIFI_AP_DATA,              // Wifi ap data
    LOC_API_ADAPTER_BATCH_FULL,                        // Batching on full
    LOC_API_ADAPTER_BATCHED_POSITION_REPORT,           // Batching on fix
    LOC_API_ADAPTER_BATCHED_GENFENCE_BREACH_REPORT,    //
    LOC_API_ADAPTER_GDT_UPLOAD_BEGIN_REQ,              // GDT upload start request
    LOC_API_ADAPTER_GDT_UPLOAD_END_REQ,                // GDT upload end request
    LOC_API_ADAPTER_GNSS_MEASUREMENT,                  // GNSS Measurement report
    LOC_API_ADAPTER_REQUEST_TIMEZONE,                  // Timezone injection request
    LOC_API_ADAPTER_REPORT_GENFENCE_DWELL_REPORT,      // Geofence dwell report
    LOC_API_ADAPTER_EVENT_MAX
};

#define LOC_API_ADAPTER_BIT_PARSED_POSITION_REPORT           (1<<LOC_API_ADAPTER_REPORT_POSITION)
#define LOC_API_ADAPTER_BIT_SATELLITE_REPORT                 (1<<LOC_API_ADAPTER_REPORT_SATELLITE)
#define LOC_API_ADAPTER_BIT_NMEA_1HZ_REPORT                  (1<<LOC_API_ADAPTER_REPORT_NMEA_1HZ)
#define LOC_API_ADAPTER_BIT_NMEA_POSITION_REPORT             (1<<LOC_API_ADAPTER_REPORT_NMEA_POSITION)
#define LOC_API_ADAPTER_BIT_NI_NOTIFY_VERIFY_REQUEST         (1<<LOC_API_ADAPTER_REQUEST_NI_NOTIFY_VERIFY)
#define LOC_API_ADAPTER_BIT_ASSISTANCE_DATA_REQUEST          (1<<LOC_API_ADAPTER_REQUEST_ASSISTANCE_DATA)
#define LOC_API_ADAPTER_BIT_LOCATION_SERVER_REQUEST          (1<<LOC_API_ADAPTER_REQUEST_LOCATION_SERVER)
#define LOC_API_ADAPTER_BIT_IOCTL_REPORT                     (1<<LOC_API_ADAPTER_REPORT_IOCTL)
#define LOC_API_ADAPTER_BIT_STATUS_REPORT                    (1<<LOC_API_ADAPTER_REPORT_STATUS)
#define LOC_API_ADAPTER_BIT_REQUEST_WIFI                     (1<<LOC_API_ADAPTER_REQUEST_WIFI)
#define LOC_API_ADAPTER_BIT_SENSOR_STATUS                    (1<<LOC_API_ADAPTER_SENSOR_STATUS)
#define LOC_API_ADAPTER_BIT_REQUEST_TIME_SYNC                (1<<LOC_API_ADAPTER_REQUEST_TIME_SYNC)
#define LOC_API_ADAPTER_BIT_REPORT_SPI                       (1<<LOC_API_ADAPTER_REPORT_SPI)
#define LOC_API_ADAPTER_BIT_REPORT_NI_GEOFENCE               (1<<LOC_API_ADAPTER_REPORT_NI_GEOFENCE)
#define LOC_API_ADAPTER_BIT_GEOFENCE_GEN_ALERT               (1<<LOC_API_ADAPTER_GEOFENCE_GEN_ALERT)
#define LOC_API_ADAPTER_BIT_REPORT_GENFENCE_BREACH           (1<<LOC_API_ADAPTER_REPORT_GENFENCE_BREACH)
#define LOC_API_ADAPTER_BIT_BATCHED_GENFENCE_BREACH_REPORT   (1<<LOC_API_ADAPTER_BATCHED_GENFENCE_BREACH_REPORT)
#define LOC_API_ADAPTER_BIT_PEDOMETER_CTRL                   (1<<LOC_API_ADAPTER_PEDOMETER_CTRL)
#define LOC_API_ADAPTER_BIT_MOTION_CTRL                      (1<<LOC_API_ADAPTER_MOTION_CTRL)
#define LOC_API_ADAPTER_BIT_REQUEST_WIFI_AP_DATA             (1<<LOC_API_ADAPTER_REQUEST_WIFI_AP_DATA)
#define LOC_API_ADAPTER_BIT_BATCH_FULL                       (1<<LOC_API_ADAPTER_BATCH_FULL)
#define LOC_API_ADAPTER_BIT_BATCHED_POSITION_REPORT          (1<<LOC_API_ADAPTER_BATCHED_POSITION_REPORT)
#define LOC_API_ADAPTER_BIT_GDT_UPLOAD_BEGIN_REQ             (1<<LOC_API_ADAPTER_GDT_UPLOAD_BEGIN_REQ)
#define LOC_API_ADAPTER_BIT_GDT_UPLOAD_END_REQ               (1<<LOC_API_ADAPTER_GDT_UPLOAD_END_REQ)
#define LOC_API_ADAPTER_BIT_GNSS_MEASUREMENT                 (1<<LOC_API_ADAPTER_GNSS_MEASUREMENT)
#define LOC_API_ADAPTER_BIT_REQUEST_TIMEZONE                 (1<<LOC_API_ADAPTER_REQUEST_TIMEZONE)
#define LOC_API_ADAPTER_BIT_REPORT_GENFENCE_DWELL            (1<<LOC_API_ADAPTER_REPORT_GENFENCE_DWELL_REPORT)

typedef unsigned int LOC_API_ADAPTER_EVENT_MASK_T;

typedef enum loc_api_adapter_msg_to_check_supported {
    LOC_API_ADAPTER_MESSAGE_LOCATION_BATCHING,               // Batching 1.0
    LOC_API_ADAPTER_MESSAGE_BATCHED_GENFENCE_BREACH,         // Geofence Batched Breach
    LOC_API_ADAPTER_MESSAGE_DISTANCE_BASE_TRACKING,          // DBT 2.0
    LOC_API_ADAPTER_MESSAGE_ADAPTIVE_LOCATION_BATCHING,      // Batching 1.5
    LOC_API_ADAPTER_MESSAGE_DISTANCE_BASE_LOCATION_BATCHING, // Batching 2.0
    LOC_API_ADAPTER_MESSAGE_UPDATE_TBF_ON_THE_FLY,           // Updating Tracking TBF On The Fly

    LOC_API_ADAPTER_MESSAGE_MAX
} LocCheckingMessagesID;

typedef uint32_t LOC_GPS_LOCK_MASK;
#define isGpsLockNone(lock) ((lock) == 0)
#define isGpsLockMO(lock) ((lock) & ((LOC_GPS_LOCK_MASK)1))
#define isGpsLockMT(lock) ((lock) & ((LOC_GPS_LOCK_MASK)2))
#define isGpsLockAll(lock) (((lock) & ((LOC_GPS_LOCK_MASK)3)) == 3)

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* GPS_EXTENDED_C_H */