1 files changed, 124 insertions, 0 deletions
diff --git a/gps/gta04_gps.h b/gps/gta04_gps.h
new file mode 100644
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+++ b/gps/gta04_gps.h
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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