u-blox / C027_Support

support library for C027 helper functions for Buffer Pipes, Buffered Serial Port (rtos capable) and GPS parsing. It includes modem APIs for USSD, SMS and Sockets.

Dependents:   HTTPClient_Cellular_HelloWorld Cellular_HelloMQTT MbedSmartRestMain Car_Bon_car_module ... more

This library is intended to be used with u-blox products such as the C027 or a shield with u-blox cellular and GPS modules like the cellular and positioning shield from Embedded Artist.

For 2G/GSM and 3G/UMTS you need to:

  • have a SIM card and know its PIN number
  • need to know you network operators APN setting These setting should be passed to the connect or init and join functions. You can also extend the APN database in MDMAPN.h.

For CDMA products you need to make sure that you have provisioned and activated the modem with either Sprint or Verizon.

SerialPipe.cpp@74:208e3e32d263, 2014-05-15 (annotated)

Committer:
mazgch
Date:
Thu May 15 22:20:42 2014 +0000
Revision:
74:208e3e32d263
Parent:
70:0a87d256cd24
Child:
75:ce6e12067d0c
initial version of restructured u-blox library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mazgch 9:e7a5959ffae1 1 #pragma once
mazgch 9:e7a5959ffae1 2
mazgch 9:e7a5959ffae1 3 #include "SerialPipe.h"
mazgch 9:e7a5959ffae1 4
mazgch 74:208e3e32d263 5 SerialPipe::SerialPipe(PinName tx, PinName rx, int rxSize, int txSize) :
mazgch 74:208e3e32d263 6 _SerialPipeBase(tx,rx),
mazgch 74:208e3e32d263 7 _pipeRx( (rx!=NC) ? rxSize : 0),
mazgch 74:208e3e32d263 8 _pipeTx( (tx!=NC) ? txSize : 0)
mazgch 9:e7a5959ffae1 9 {
mazgch 74:208e3e32d263 10 if (rx!=NC)
mazgch 74:208e3e32d263 11 attach(this, &SerialPipe::rxIrqBuf, RxIrq);
mazgch 9:e7a5959ffae1 12 }
mazgch 9:e7a5959ffae1 13
mazgch 9:e7a5959ffae1 14 SerialPipe::~SerialPipe(void)
mazgch 9:e7a5959ffae1 15 {
mazgch 9:e7a5959ffae1 16 attach(NULL, RxIrq);
mazgch 9:e7a5959ffae1 17 attach(NULL, TxIrq);
mazgch 9:e7a5959ffae1 18 }
mazgch 9:e7a5959ffae1 19
mazgch 9:e7a5959ffae1 20 // tx channel
mazgch 13:e2446fcdc246 21 int SerialPipe::writeable(void)
mazgch 13:e2446fcdc246 22 {
mazgch 13:e2446fcdc246 23 return _pipeTx.free();
mazgch 13:e2446fcdc246 24 }
mazgch 13:e2446fcdc246 25
mazgch 13:e2446fcdc246 26 int SerialPipe::putc(int c)
mazgch 13:e2446fcdc246 27 {
mazgch 15:5eda64e5b9d1 28 c = _pipeTx.putc(c);
mazgch 15:5eda64e5b9d1 29 txStart();
mazgch 15:5eda64e5b9d1 30 return c;
mazgch 13:e2446fcdc246 31 }
mazgch 13:e2446fcdc246 32
mazgch 13:e2446fcdc246 33 int SerialPipe::put(const void* buffer, int length, bool blocking)
mazgch 9:e7a5959ffae1 34 {
mazgch 13:e2446fcdc246 35 int count = length;
mazgch 13:e2446fcdc246 36 const char* ptr = (const char*)buffer;
mazgch 15:5eda64e5b9d1 37 if (count)
mazgch 9:e7a5959ffae1 38 {
mazgch 15:5eda64e5b9d1 39 do
mazgch 15:5eda64e5b9d1 40 {
mazgch 15:5eda64e5b9d1 41 int written = _pipeTx.put(ptr, count, false);
mazgch 15:5eda64e5b9d1 42 ptr += written;
mazgch 15:5eda64e5b9d1 43 count -= written;
mazgch 15:5eda64e5b9d1 44 txStart();
mazgch 15:5eda64e5b9d1 45 }
mazgch 15:5eda64e5b9d1 46 while (count && blocking);
mazgch 9:e7a5959ffae1 47 }
mazgch 13:e2446fcdc246 48 return (length - count);
mazgch 13:e2446fcdc246 49 }
mazgch 13:e2446fcdc246 50
mazgch 70:0a87d256cd24 51 void SerialPipe::txCopy(void)
mazgch 9:e7a5959ffae1 52 {
mazgch 15:5eda64e5b9d1 53 while (_SerialPipeBase::writeable() && _pipeTx.readable())
mazgch 11:b084552b03fe 54 {
mazgch 13:e2446fcdc246 55 char c = _pipeTx.getc();
mazgch 15:5eda64e5b9d1 56 _SerialPipeBase::_base_putc(c);
mazgch 11:b084552b03fe 57 }
mazgch 9:e7a5959ffae1 58 }
mazgch 9:e7a5959ffae1 59
mazgch 70:0a87d256cd24 60 void SerialPipe::txIrqBuf(void)
mazgch 70:0a87d256cd24 61 {
mazgch 70:0a87d256cd24 62 txCopy();
mazgch 70:0a87d256cd24 63 // detach tx isr if we are done
mazgch 70:0a87d256cd24 64 if (!_pipeTx.readable())
mazgch 70:0a87d256cd24 65 attach(NULL, TxIrq);
mazgch 70:0a87d256cd24 66 }
mazgch 70:0a87d256cd24 67
mazgch 13:e2446fcdc246 68 void SerialPipe::txStart(void)
mazgch 13:e2446fcdc246 69 {
mazgch 70:0a87d256cd24 70 // disable the tx isr to avoid interruption
mazgch 70:0a87d256cd24 71 attach(NULL, TxIrq);
mazgch 70:0a87d256cd24 72 txCopy();
mazgch 70:0a87d256cd24 73 // attach the tx isr to handle the remaining data
mazgch 70:0a87d256cd24 74 if (_pipeTx.readable())
mazgch 70:0a87d256cd24 75 attach(this, &SerialPipe::txIrqBuf, TxIrq);
mazgch 13:e2446fcdc246 76 }
mazgch 13:e2446fcdc246 77
mazgch 9:e7a5959ffae1 78 // rx channel
mazgch 9:e7a5959ffae1 79 int SerialPipe::readable(void)
mazgch 9:e7a5959ffae1 80 {
mazgch 9:e7a5959ffae1 81 return _pipeRx.readable();
mazgch 9:e7a5959ffae1 82 }
mazgch 9:e7a5959ffae1 83
mazgch 9:e7a5959ffae1 84 int SerialPipe::getc(void)
mazgch 9:e7a5959ffae1 85 {
mazgch 15:5eda64e5b9d1 86 if (!_pipeRx.readable())
mazgch 15:5eda64e5b9d1 87 return EOF;
mazgch 15:5eda64e5b9d1 88 return _pipeRx.getc();
mazgch 13:e2446fcdc246 89 }
mazgch 13:e2446fcdc246 90
mazgch 13:e2446fcdc246 91 int SerialPipe::get(void* buffer, int length, bool blocking)
mazgch 13:e2446fcdc246 92 {
mazgch 13:e2446fcdc246 93 return _pipeRx.get((char*)buffer,length,blocking);
mazgch 13:e2446fcdc246 94 }
mazgch 13:e2446fcdc246 95
mazgch 9:e7a5959ffae1 96 void SerialPipe::rxIrqBuf(void)
mazgch 9:e7a5959ffae1 97 {
mazgch 15:5eda64e5b9d1 98 while (_SerialPipeBase::readable())
mazgch 9:e7a5959ffae1 99 {
mazgch 15:5eda64e5b9d1 100 char c = _SerialPipeBase::_base_getc();
mazgch 9:e7a5959ffae1 101 if (_pipeRx.writeable())
mazgch 13:e2446fcdc246 102 _pipeRx.putc(c);
mazgch 9:e7a5959ffae1 103 else
mazgch 9:e7a5959ffae1 104 /* overflow */;
mazgch 9:e7a5959ffae1 105 }
mazgch 9:e7a5959ffae1 106 }
mazgch 9:e7a5959ffae1 107