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/*
* Copyright (C) 2014 Paul Kocialkowski <contact@paulk.fr>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <termios.h>
#include <sys/eventfd.h>
#include <hardware/gps.h>
#ifndef _GTA04_GPS_H_
#define _GTA04_GPS_H_
/*
* Structures
*/
struct gta04_gps {
GpsCallbacks *callbacks;
GpsLocation location;
GpsStatus status;
GpsSvStatus sv_status;
uint32_t capabilities;
int sv_index;
unsigned char accurate;
int year;
int month;
int day;
GpsPositionRecurrence recurrence;
uint32_t interval;
pthread_mutex_t mutex;
pthread_t thread;
int serial_fd;
int event_fd;
};
/*
* Values
*/
enum {
GTA04_GPS_EVENT_NONE,
GTA04_GPS_EVENT_TERMINATE,
GTA04_GPS_EVENT_START,
GTA04_GPS_EVENT_STOP,
GTA04_GPS_EVENT_RESTART,
GTA04_GPS_EVENT_INJECT_TIME,
GTA04_GPS_EVENT_INJECT_LOCATION,
GTA04_GPS_EVENT_SET_POSITION_MODE,
};
/*
* Globals
*/
extern const char antenna_state_path[];
extern const char serial_path[];
extern const speed_t serial_speed;
extern const int channel_count;
extern struct gta04_gps *gta04_gps;
/*
* Declarations
*/
// GTA04 GPS
void gta04_gps_location_callback(void);
void gta04_gps_status_callback(void);
void gta04_gps_sv_status_callback(void);
void gta04_gps_set_capabilities_callback(void);
void gta04_gps_acquire_wakelock_callback(void);
void gta04_gps_release_wakelock_callback(void);
int gta04_gps_serial_open(void);
int gta04_gps_serial_close(void);
int gta04_gps_serial_read(void *buffer, size_t length);
int gta04_gps_serial_write(void *buffer, size_t length);
int gta04_gps_event_read(eventfd_t *event);
int gta04_gps_event_write(eventfd_t event);
// NMEA
char *gta04_gps_nmea_prepare(char *nmea);
char *gta04_gps_nmea_extract(char *buffer, size_t length);
char *gta04_gps_nmea_parse(char *nmea);
int gta04_gps_nmea_parse_int(char *string, size_t offset, size_t length);
double gta04_gps_nmea_parse_float(char *string, size_t offset, size_t length);
int gta04_gps_nmea_time(char *nmea);
int gta04_gps_nmea_date(char *nmea);
int gta04_gps_nmea_coordinates(char *nmea);
int gta04_gps_nmea_gpgga(char *nmea);
int gta04_gps_nmea_gpgll(char *nmea);
int gta04_gps_nmea_gpgsa(char *nmea);
int gta04_gps_nmea_gpgsv(char *nmea);
int gta04_gps_nmea_gprmc(char *nmea);
int gta04_gps_nmea_psrf103(unsigned char message, int interval);
#endif
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