/usr/include/omhacks/gps.h is in libomhacks-dev 0.16-1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | #ifndef OMHACKS_GPS_H
#define OMHACKS_GPS_H
/*
* omhacks - Various useful utility functions for the FreeRunner
*
* Copyright (C) 2009 Enrico Zini <enrico@enricozini.org>
*
* 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 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Return the power status of the GPS chip.
*
* Returns 1 if on, 0 if off, a negative value in case of problems.
*/
int om_gps_power_get();
/*
* Turn on/off the GPS chip
*
* If value is true, turn on the GPS. Else, turn it off.
*/
int om_gps_power_set(int value);
/*
* Turn on/off the GPS chip, and return the previous status.
*
* If value is true, turn on the GPS. Else, turn it off.
*
* Returns 1 if on, 0 if off, a negative value in case of problems.
*/
int om_gps_power_swap(int value);
/*
* Return the keep_on_in_suspend status of the GPS chip.
*
* Returns 1 if on, 0 if off, a negative value in case of problems.
*/
int om_gps_keep_on_in_suspend_get();
/*
* Turn on/off the keep_on_in_suspend bit on the GPS chip
*
* If value is true, GPS stays on during suspend. Else, it gets switched off.
*/
int om_gps_keep_on_in_suspend_set(int value);
/*
* Turn on/off the keep_on_in_suspend bit on the GPS chip, and return the
* previous value.
*
* If value is true, GPS stays on during suspend. Else, it gets switched off.
*
* Returns 1 if on, 0 if off, a negative value in case of problems.
*/
int om_gps_keep_on_in_suspend_swap(int value);
/*
* Open a connection to the GPS chip.
*
* Returns a connection handle (file descriptor) or negative value on
* error.
*/
int om_gps_open(void);
/*
* Close a connection to the GPS chip.
*
* The parameter should be a value returned by om_gps_open.
*/
void om_gps_close(int fd);
/*
* Send an arbitrary UBX packet to the GPS chip.
*
* @param fd handle returned by om_gps_open
* @param klass UBX packet class
* @param type UBX packet type
* @param payload actual payload of the packet
* @param payloadlen length of payload.
* @return 0 on success and a negative value in case of problems.
*
* Please read "ANTARIS_Protocol_Specification(GPS.G3-X-03002).chm" to
* understand the protocol. Here are examples of commands that are
* tested to work:
*
* type class payload # description
* 06 01 f0 01 00 # disable GPGLL messages
* 06 01 f0 02 00 # disable GPGSA messages
* 06 01 f0 03 00 # disable GPGSV messages
* 06 01 f0 05 00 # disable GPGTG messages
* 06 01 f0 08 00 # disable GPZDA messages
* 06 08 fa 00 01 00 00 00 # report position 4 times/s
* 06 08 f4 01 01 00 00 00 # report position 2 times/s
*
*/
int om_gps_ubx_send(int fd, int klass, int type, const char *payload, int payloadlen);
#endif
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