Iftikhar Aziz / C027_Support

454

Fork of C027_Support by Umar Naeem

GPS.h@18:e5697801df29, 2014-03-14 (annotated)

Committer:
mazgch
Date:
Fri Mar 14 13:07:48 2014 +0000
Revision:
18:e5697801df29
Parent:
13:e2446fcdc246
Child:
19:2b5d097ca15d
Child:
20:535ef78655df
extend Api for GPS and GNSS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mazgch 1:f41579f4e2ed 1 #pragma once
mazgch 1:f41579f4e2ed 2
mazgch 2:b6012cd91657 3 #include "mbed.h"
mazgch 2:b6012cd91657 4 #include "Pipe.h"
mazgch 1:f41579f4e2ed 5 #include "SerialPipe.h"
mazgch 2:b6012cd91657 6 #include "C027_PinNames.h"
mazgch 2:b6012cd91657 7
mazgch 9:e7a5959ffae1 8 #define RX_SIZE 256
mazgch 9:e7a5959ffae1 9 #define TX_SIZE 128
mazgch 9:e7a5959ffae1 10
mazgch 2:b6012cd91657 11 class GPSParser
mazgch 2:b6012cd91657 12 {
mazgch 2:b6012cd91657 13 public:
mazgch 2:b6012cd91657 14 #define WAIT -1
mazgch 2:b6012cd91657 15 #define NOT_FOUND 0
mazgch 2:b6012cd91657 16
mazgch 2:b6012cd91657 17 #define UBX 0x100000
mazgch 2:b6012cd91657 18 #define NMEA 0x200000
mazgch 2:b6012cd91657 19 #define LENGTH(x) (x & 0x00FFFF)
mazgch 2:b6012cd91657 20 #define PROTOCOL(x) (x & 0xFF0000)
mazgch 1:f41579f4e2ed 21
mazgch 2:b6012cd91657 22 virtual int getMessage(char* buf, int len) = 0;
mazgch 4:c959dd4c5fe8 23 virtual int send(const char* buf, int len);
mazgch 4:c959dd4c5fe8 24 virtual int sendNmea(const char* buf, int len);
mazgch 11:b084552b03fe 25 virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf = NULL, int len = 0);
mazgch 2:b6012cd91657 26
mazgch 2:b6012cd91657 27 static const char* findNmeaItemPos(int ix, const char* start, const char* end);
mazgch 2:b6012cd91657 28 static bool getNmeaItem(int ix, char* buf, int len, double& val);
mazgch 2:b6012cd91657 29 static bool getNmeaItem(int ix, char* buf, int len, int& val, int base/*=10*/);
mazgch 2:b6012cd91657 30 static bool getNmeaItem(int ix, char* buf, int len, char& val);
mazgch 18:e5697801df29 31 static bool getNmeaAngle(int ix, char* buf, int len, double& d);
mazgch 2:b6012cd91657 32 protected:
mazgch 2:b6012cd91657 33 static int _getMessage(Pipe<char>* pipe, char* buf, int len);
mazgch 2:b6012cd91657 34 static int _parseNmea(Pipe<char>* pipe, int len);
mazgch 2:b6012cd91657 35 static int _parseUbx(Pipe<char>* pipe, int len);
mazgch 4:c959dd4c5fe8 36 virtual int _send(const void* buf, int len) = 0;
mazgch 2:b6012cd91657 37 static const char toHex[16];
mazgch 2:b6012cd91657 38 };
mazgch 2:b6012cd91657 39
mazgch 9:e7a5959ffae1 40 class GPSSerial : public SerialPipe, public GPSParser
mazgch 1:f41579f4e2ed 41 {
mazgch 1:f41579f4e2ed 42 public:
mazgch 9:e7a5959ffae1 43 GPSSerial(PinName tx = GPSTXD, PinName rx = GPSRXD, int baudrate = GPSBAUD,
mazgch 9:e7a5959ffae1 44 int rxSize = RX_SIZE, int txSize = TX_SIZE);
mazgch 2:b6012cd91657 45 virtual int getMessage(char* buf, int len);
mazgch 2:b6012cd91657 46 protected:
mazgch 4:c959dd4c5fe8 47 virtual int _send(const void* buf, int len);
mazgch 1:f41579f4e2ed 48 };
mazgch 2:b6012cd91657 49
mazgch 2:b6012cd91657 50 class GPSI2C : public I2C, public GPSParser
mazgch 2:b6012cd91657 51 {
mazgch 2:b6012cd91657 52 public:
mazgch 9:e7a5959ffae1 53 GPSI2C(PinName sda = GPSSDA, PinName scl = GPSSCL,
mazgch 9:e7a5959ffae1 54 int rxSize = RX_SIZE);
mazgch 2:b6012cd91657 55 bool detect(void);
mazgch 2:b6012cd91657 56
mazgch 2:b6012cd91657 57 virtual int getMessage(char* buf, int len);
mazgch 4:c959dd4c5fe8 58 virtual int send(const char* buf, int len);
mazgch 3:c7cd4887560d 59 virtual int sendNmea(const char* buf, int len);
mazgch 11:b084552b03fe 60 virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf = NULL, int len = 0);
mazgch 2:b6012cd91657 61 protected:
mazgch 9:e7a5959ffae1 62 bool writeable(void) { return true; }
mazgch 9:e7a5959ffae1 63 bool putc(int c) { char ch = c; return send(&ch, 1); }
mazgch 4:c959dd4c5fe8 64 virtual int _send(const void* buf, int len);
mazgch 3:c7cd4887560d 65 int _get(char* buf, int len); // read the NMEA or UBX stream
mazgch 3:c7cd4887560d 66
mazgch 2:b6012cd91657 67 Pipe<char> _pipe;
mazgch 2:b6012cd91657 68 bool found;
mazgch 2:b6012cd91657 69 static const char REGLEN;
mazgch 2:b6012cd91657 70 static const char REGSTREAM;
mazgch 2:b6012cd91657 71 };