Sarah Marsh / C027_Support

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Fork of C027_Support by NetworkSocketAPI

GPS.h@9:e7a5959ffae1, 2013-11-10 (annotated)

Committer:
mazgch
Date:
Sun Nov 10 16:39:42 2013 +0000
Revision:
9:e7a5959ffae1
Parent:
4:c959dd4c5fe8
Child:
11:b084552b03fe
update support library (tx pipe)

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 4:c959dd4c5fe8 25 virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf, int len);
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 2:b6012cd91657 31 protected:
mazgch 2:b6012cd91657 32 static int _getMessage(Pipe<char>* pipe, char* buf, int len);
mazgch 2:b6012cd91657 33 static int _parseNmea(Pipe<char>* pipe, int len);
mazgch 2:b6012cd91657 34 static int _parseUbx(Pipe<char>* pipe, int len);
mazgch 4:c959dd4c5fe8 35 virtual int _send(const void* buf, int len) = 0;
mazgch 2:b6012cd91657 36 static const char toHex[16];
mazgch 2:b6012cd91657 37 };
mazgch 2:b6012cd91657 38
mazgch 9:e7a5959ffae1 39 class GPSSerial : public SerialPipe, public GPSParser
mazgch 1:f41579f4e2ed 40 {
mazgch 1:f41579f4e2ed 41 public:
mazgch 9:e7a5959ffae1 42 GPSSerial(PinName tx = GPSTXD, PinName rx = GPSRXD, int baudrate = GPSBAUD,
mazgch 9:e7a5959ffae1 43 int rxSize = RX_SIZE, int txSize = TX_SIZE);
mazgch 2:b6012cd91657 44
mazgch 2:b6012cd91657 45 virtual int getMessage(char* buf, int len);
mazgch 2:b6012cd91657 46 protected:
mazgch 3:c7cd4887560d 47 virtual char next(void);
mazgch 4:c959dd4c5fe8 48 virtual int _send(const void* buf, int len);
mazgch 1:f41579f4e2ed 49 };
mazgch 2:b6012cd91657 50
mazgch 2:b6012cd91657 51 class GPSI2C : public I2C, public GPSParser
mazgch 2:b6012cd91657 52 {
mazgch 2:b6012cd91657 53 public:
mazgch 9:e7a5959ffae1 54 GPSI2C(PinName sda = GPSSDA, PinName scl = GPSSCL,
mazgch 9:e7a5959ffae1 55 int rxSize = RX_SIZE);
mazgch 2:b6012cd91657 56 bool detect(void);
mazgch 2:b6012cd91657 57
mazgch 2:b6012cd91657 58 virtual int getMessage(char* buf, int len);
mazgch 4:c959dd4c5fe8 59 virtual int send(const char* buf, int len);
mazgch 3:c7cd4887560d 60 virtual int sendNmea(const char* buf, int len);
mazgch 3:c7cd4887560d 61 virtual int sendUbx(unsigned char cls, unsigned char id, const void* buf, int len);
mazgch 2:b6012cd91657 62 protected:
mazgch 3:c7cd4887560d 63 virtual char next(void);
mazgch 9:e7a5959ffae1 64 bool writeable(void) { return true; }
mazgch 9:e7a5959ffae1 65 bool putc(int c) { char ch = c; return send(&ch, 1); }
mazgch 4:c959dd4c5fe8 66 virtual int _send(const void* buf, int len);
mazgch 3:c7cd4887560d 67 int _get(char* buf, int len); // read the NMEA or UBX stream
mazgch 3:c7cd4887560d 68
mazgch 2:b6012cd91657 69 Pipe<char> _pipe;
mazgch 2:b6012cd91657 70 bool found;
mazgch 2:b6012cd91657 71 static const char REGLEN;
mazgch 2:b6012cd91657 72 static const char REGSTREAM;
mazgch 2:b6012cd91657 73 };