gps.h

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/* gps.h --- 
 * 
 * Filename: gps.h
 * Description: 
 * Author: Bryce Himebaugh
 * Maintainer: 
 * Created: Mon Oct 23 16:24:25 2006
 * Version: 
 * Last-Updated: 
 *           By: 
 *     Update #: 0
 * Keywords: 
 * Compatibility: 
 * 
 */

/* Commentary: 
 * 
 * 
 * 
 */

/* Change log:
 * 
 * 
 */

/* 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 2, 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; see the file COPYING.  If not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

/* Code: */

#define GPS_BUF_SIZE 100
#define GPS_BUF_NUM 3

#define DATE 3
#define TIME 4
#define LATITUDE 6
#define LONGITUDE 8
#define FIX 11
#define SPEED 12
#define HPE 1     
#define EPE 5     // Note that the EPE field in the PGRME sentence is actually field 5 due to "M" padding. 
#define NVEL 2
#define EVEL 1

int init_gps(void);
int evaluate_gps(void);
int gps_add_checksum(char *);
int gps_send(const char *, ... );
int gps_show_raw(void);
char *gps_get(void);
int gps_parse(char *);

void get_field_test(void);

enum {EMPTY,READY};

typedef struct gps_buffer {
  char status;
  char data[GPS_BUF_SIZE];
} gps_buffer_t;

typedef struct gps {
  gps_buffer_t db[GPS_BUF_NUM];
} gps_t;

extern gps_t buf_struct;

/* gps.h ends here */

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