Satellite Observers Workbench. NOT yet complete, just published for forum posters to \"cherry pick\" pieces of code as requiered as an example.
gps/gps.h@0:0a841b89d614, 2010-10-11 (annotated)
- Committer:
- AjK
- Date:
- Mon Oct 11 10:34:55 2010 +0000
- Revision:
- 0:0a841b89d614
Totally Alpha quality as this project isn\t completed. Just publishing it as it answers many questions asked in the forums
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AjK | 0:0a841b89d614 | 1 | /**************************************************************************** |
AjK | 0:0a841b89d614 | 2 | * Copyright 2010 Andy Kirkham, Stellar Technologies Ltd |
AjK | 0:0a841b89d614 | 3 | * |
AjK | 0:0a841b89d614 | 4 | * This file is part of the Satellite Observers Workbench (SOWB). |
AjK | 0:0a841b89d614 | 5 | * |
AjK | 0:0a841b89d614 | 6 | * SOWB is free software: you can redistribute it and/or modify |
AjK | 0:0a841b89d614 | 7 | * it under the terms of the GNU General Public License as published by |
AjK | 0:0a841b89d614 | 8 | * the Free Software Foundation, either version 3 of the License, or |
AjK | 0:0a841b89d614 | 9 | * (at your option) any later version. |
AjK | 0:0a841b89d614 | 10 | * |
AjK | 0:0a841b89d614 | 11 | * SOWB is distributed in the hope that it will be useful, |
AjK | 0:0a841b89d614 | 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
AjK | 0:0a841b89d614 | 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
AjK | 0:0a841b89d614 | 14 | * GNU General Public License for more details. |
AjK | 0:0a841b89d614 | 15 | * |
AjK | 0:0a841b89d614 | 16 | * You should have received a copy of the GNU General Public License |
AjK | 0:0a841b89d614 | 17 | * along with SOWB. If not, see <http://www.gnu.org/licenses/>. |
AjK | 0:0a841b89d614 | 18 | * |
AjK | 0:0a841b89d614 | 19 | * $Id: main.cpp 5 2010-07-12 20:51:11Z ajk $ |
AjK | 0:0a841b89d614 | 20 | * |
AjK | 0:0a841b89d614 | 21 | ***************************************************************************/ |
AjK | 0:0a841b89d614 | 22 | |
AjK | 0:0a841b89d614 | 23 | #ifndef GPS_H |
AjK | 0:0a841b89d614 | 24 | #define GPS_H |
AjK | 0:0a841b89d614 | 25 | |
AjK | 0:0a841b89d614 | 26 | #define GPS_LAT_STR 0 |
AjK | 0:0a841b89d614 | 27 | #define GPS_LON_STR 1 |
AjK | 0:0a841b89d614 | 28 | |
AjK | 0:0a841b89d614 | 29 | #define GPS_HISTORY_SIZE 60 |
AjK | 0:0a841b89d614 | 30 | |
AjK | 0:0a841b89d614 | 31 | typedef struct _gps_time { |
AjK | 0:0a841b89d614 | 32 | int year; |
AjK | 0:0a841b89d614 | 33 | char month; |
AjK | 0:0a841b89d614 | 34 | char day; |
AjK | 0:0a841b89d614 | 35 | char hour; |
AjK | 0:0a841b89d614 | 36 | char minute; |
AjK | 0:0a841b89d614 | 37 | char second; |
AjK | 0:0a841b89d614 | 38 | char tenth; |
AjK | 0:0a841b89d614 | 39 | char hundreth; |
AjK | 0:0a841b89d614 | 40 | char is_valid; |
AjK | 0:0a841b89d614 | 41 | char prev_valid; |
AjK | 0:0a841b89d614 | 42 | } GPS_TIME; |
AjK | 0:0a841b89d614 | 43 | |
AjK | 0:0a841b89d614 | 44 | typedef struct _gps_location_raw { |
AjK | 0:0a841b89d614 | 45 | char north_south; |
AjK | 0:0a841b89d614 | 46 | char east_west; |
AjK | 0:0a841b89d614 | 47 | char lat[16]; |
AjK | 0:0a841b89d614 | 48 | char lon[16]; |
AjK | 0:0a841b89d614 | 49 | char alt[16]; |
AjK | 0:0a841b89d614 | 50 | char sats[8]; |
AjK | 0:0a841b89d614 | 51 | char is_valid; |
AjK | 0:0a841b89d614 | 52 | uint32_t updated; |
AjK | 0:0a841b89d614 | 53 | } GPS_LOCATION_RAW; |
AjK | 0:0a841b89d614 | 54 | |
AjK | 0:0a841b89d614 | 55 | typedef struct _gps_location_average { |
AjK | 0:0a841b89d614 | 56 | char north_south; |
AjK | 0:0a841b89d614 | 57 | double latitude; |
AjK | 0:0a841b89d614 | 58 | char east_west; |
AjK | 0:0a841b89d614 | 59 | double longitude; |
AjK | 0:0a841b89d614 | 60 | double height; |
AjK | 0:0a841b89d614 | 61 | char *sats; |
AjK | 0:0a841b89d614 | 62 | char is_valid; |
AjK | 0:0a841b89d614 | 63 | } GPS_LOCATION_AVERAGE; |
AjK | 0:0a841b89d614 | 64 | |
AjK | 0:0a841b89d614 | 65 | /* GPS module API function prototypes. */ |
AjK | 0:0a841b89d614 | 66 | void gps_init(void); |
AjK | 0:0a841b89d614 | 67 | void gps_process(void); |
AjK | 0:0a841b89d614 | 68 | double gps_convert_coord(char *s, int type); |
AjK | 0:0a841b89d614 | 69 | double gps_julian_day_number(GPS_TIME *t); |
AjK | 0:0a841b89d614 | 70 | double gps_julian_date(GPS_TIME *t); |
AjK | 0:0a841b89d614 | 71 | double gps_siderealDegrees_by_jd(double jd); |
AjK | 0:0a841b89d614 | 72 | double gps_siderealDegrees_by_time(GPS_TIME *t); |
AjK | 0:0a841b89d614 | 73 | double gps_siderealHA_by_jd(double jd); |
AjK | 0:0a841b89d614 | 74 | double gps_siderealHA_by_time(GPS_TIME *t); |
AjK | 0:0a841b89d614 | 75 | GPS_TIME *gps_get_time(GPS_TIME *q); |
AjK | 0:0a841b89d614 | 76 | GPS_LOCATION_RAW *gps_get_location_raw(GPS_LOCATION_RAW *q); |
AjK | 0:0a841b89d614 | 77 | GPS_LOCATION_AVERAGE *gps_get_location_average(GPS_LOCATION_AVERAGE *q); |
AjK | 0:0a841b89d614 | 78 | |
AjK | 0:0a841b89d614 | 79 | /* Used by other modules to make callbacks. */ |
AjK | 0:0a841b89d614 | 80 | void gps_pps_fall(void); /* gpioirq.c needs this to know what to callback to. */ |
AjK | 0:0a841b89d614 | 81 | |
AjK | 0:0a841b89d614 | 82 | #define GPS_BUFFER_SIZE 128 |
AjK | 0:0a841b89d614 | 83 | |
AjK | 0:0a841b89d614 | 84 | /* Used to test the IIR register. Common across UARTs. */ |
AjK | 0:0a841b89d614 | 85 | #define UART_ISSET_THRE 0x0002 |
AjK | 0:0a841b89d614 | 86 | #define UART_ISSET_RDA 0x0004 |
AjK | 0:0a841b89d614 | 87 | #define UART_ISSET_CTI 0x000C |
AjK | 0:0a841b89d614 | 88 | #define UART_ISSET_RLS 0x0006 |
AjK | 0:0a841b89d614 | 89 | #define UART_ISSET_FIFOLVL_RXFULL 0x0000000F |
AjK | 0:0a841b89d614 | 90 | #define UART_ISSET_FIFOLVL_TXFULL 0x00000F00 |
AjK | 0:0a841b89d614 | 91 | |
AjK | 0:0a841b89d614 | 92 | #define UART_RX_INTERRUPT iir & UART_ISSET_RDA |
AjK | 0:0a841b89d614 | 93 | |
AjK | 0:0a841b89d614 | 94 | |
AjK | 0:0a841b89d614 | 95 | /* UART1 register configuration values. */ |
AjK | 0:0a841b89d614 | 96 | #define UART1_SET_LCR 0x00000003 |
AjK | 0:0a841b89d614 | 97 | #define UART1_SET_LCR_DLAB 0x00000083 |
AjK | 0:0a841b89d614 | 98 | #define UART1_SET_DLLSB 0x71 |
AjK | 0:0a841b89d614 | 99 | #define UART1_SET_DLMSB 0x02 |
AjK | 0:0a841b89d614 | 100 | #define UART1_SET_FCR 0x01 |
AjK | 0:0a841b89d614 | 101 | #define UART1_SET_FCR_CLEAR 0x07 |
AjK | 0:0a841b89d614 | 102 | #define UART1_SET_IER 0x07 |
AjK | 0:0a841b89d614 | 103 | |
AjK | 0:0a841b89d614 | 104 | /* Macros. */ |
AjK | 0:0a841b89d614 | 105 | #define UART1_FIFO_NOT_EMPTY LPC_UART1->LSR & 0x1 |
AjK | 0:0a841b89d614 | 106 | #define UART1_GETC (char)LPC_UART1->RBR |
AjK | 0:0a841b89d614 | 107 | |
AjK | 0:0a841b89d614 | 108 | #endif |
AjK | 0:0a841b89d614 | 109 |