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@11:b084552b03fe, 2013-11-14 (annotated)

Committer:
mazgch
Date:
Thu Nov 14 15:52:36 2013 +0000
Revision:
11:b084552b03fe
Parent:
9:e7a5959ffae1
Child:
12:684b31d5482b
update api

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 9:e7a5959ffae1 5 SerialPipe::SerialPipe(PinName tx, PinName rx, int rxSize, int txSize, const char* name)
mazgch 9:e7a5959ffae1 6 : Serial(tx,rx,name), _pipeRx(rxSize), _pipeTx(txSize)
mazgch 9:e7a5959ffae1 7 {
mazgch 9:e7a5959ffae1 8 attach(this, &SerialPipe::rxIrqBuf, RxIrq);
mazgch 9:e7a5959ffae1 9 attach(this, &SerialPipe::txIrqBuf, TxIrq);
mazgch 9:e7a5959ffae1 10 }
mazgch 9:e7a5959ffae1 11
mazgch 9:e7a5959ffae1 12 SerialPipe::~SerialPipe(void)
mazgch 9:e7a5959ffae1 13 {
mazgch 9:e7a5959ffae1 14 attach(NULL, RxIrq);
mazgch 9:e7a5959ffae1 15 attach(NULL, TxIrq);
mazgch 9:e7a5959ffae1 16 }
mazgch 9:e7a5959ffae1 17
mazgch 9:e7a5959ffae1 18 // tx channel
mazgch 11:b084552b03fe 19 int SerialPipe::put(const char* b, int n, bool t)
mazgch 9:e7a5959ffae1 20 {
mazgch 11:b084552b03fe 21 int c = n;
mazgch 11:b084552b03fe 22 while (c && t)
mazgch 9:e7a5959ffae1 23 {
mazgch 11:b084552b03fe 24 int i = _pipeTx.put(b, c, false);
mazgch 11:b084552b03fe 25 b += i;
mazgch 11:b084552b03fe 26 c -= i;
mazgch 9:e7a5959ffae1 27 // give a chance to start tx
mazgch 9:e7a5959ffae1 28 __disable_irq();
mazgch 9:e7a5959ffae1 29 txIrqBuf();
mazgch 9:e7a5959ffae1 30 __enable_irq();
mazgch 9:e7a5959ffae1 31 }
mazgch 11:b084552b03fe 32 return (n - c);
mazgch 9:e7a5959ffae1 33 }
mazgch 9:e7a5959ffae1 34
mazgch 9:e7a5959ffae1 35 void SerialPipe::txIrqBuf(void)
mazgch 9:e7a5959ffae1 36 {
mazgch 9:e7a5959ffae1 37 while (serial_writable(&_serial) && _pipeTx.readable())
mazgch 11:b084552b03fe 38 {
mazgch 11:b084552b03fe 39 char ch = _pipeTx.getc();
mazgch 11:b084552b03fe 40 serial_putc(&_serial, ch);
mazgch 11:b084552b03fe 41 }
mazgch 9:e7a5959ffae1 42 }
mazgch 9:e7a5959ffae1 43
mazgch 9:e7a5959ffae1 44 // rx channel
mazgch 9:e7a5959ffae1 45 int SerialPipe::readable(void)
mazgch 9:e7a5959ffae1 46 {
mazgch 9:e7a5959ffae1 47 return _pipeRx.readable();
mazgch 9:e7a5959ffae1 48 }
mazgch 9:e7a5959ffae1 49
mazgch 9:e7a5959ffae1 50 int SerialPipe::getc(void)
mazgch 9:e7a5959ffae1 51 {
mazgch 9:e7a5959ffae1 52 return _pipeRx.getc();
mazgch 9:e7a5959ffae1 53 }
mazgch 9:e7a5959ffae1 54
mazgch 9:e7a5959ffae1 55 int SerialPipe::get(char* b, int s, bool t)
mazgch 9:e7a5959ffae1 56 {
mazgch 9:e7a5959ffae1 57 return _pipeRx.get(b,s,t);
mazgch 9:e7a5959ffae1 58 }
mazgch 9:e7a5959ffae1 59
mazgch 9:e7a5959ffae1 60 void SerialPipe::rxIrqBuf(void)
mazgch 9:e7a5959ffae1 61 {
mazgch 9:e7a5959ffae1 62 while (serial_readable(&_serial))
mazgch 9:e7a5959ffae1 63 {
mazgch 9:e7a5959ffae1 64 char ch = serial_getc(&_serial);
mazgch 9:e7a5959ffae1 65 if (_pipeRx.writeable())
mazgch 9:e7a5959ffae1 66 _pipeRx.putc(ch);
mazgch 9:e7a5959ffae1 67 else
mazgch 9:e7a5959ffae1 68 /* overflow */;
mazgch 9:e7a5959ffae1 69 }
mazgch 9:e7a5959ffae1 70 }
mazgch 9:e7a5959ffae1 71
mazgch 9:e7a5959ffae1 72 // -----------------------------------------------------------------------
mazgch 9:e7a5959ffae1 73
mazgch 9:e7a5959ffae1 74 SerialPipeEx::SerialPipeEx(PinName tx, PinName rx, int rxSize, int txSize, const char* name)
mazgch 9:e7a5959ffae1 75 : SerialPipe(tx,rx,rxSize,txSize,name)
mazgch 9:e7a5959ffae1 76 {}
mazgch 9:e7a5959ffae1 77
mazgch 9:e7a5959ffae1 78 int SerialPipeEx::getLine(char* b, int s)
mazgch 9:e7a5959ffae1 79 {
mazgch 9:e7a5959ffae1 80 int o = 0;
mazgch 9:e7a5959ffae1 81 int i = 0;
mazgch 9:e7a5959ffae1 82 int l = _pipeRx.start();
mazgch 9:e7a5959ffae1 83 while ((i < l) && (o < s))
mazgch 9:e7a5959ffae1 84 {
mazgch 9:e7a5959ffae1 85 int t = _pipeRx.next();
mazgch 9:e7a5959ffae1 86 i ++;
mazgch 9:e7a5959ffae1 87 if (t == '\r') // terminate commands with carriage return
mazgch 9:e7a5959ffae1 88 {
mazgch 9:e7a5959ffae1 89 _pipeRx.done();
mazgch 9:e7a5959ffae1 90 return o; // if enter send the zero char
mazgch 9:e7a5959ffae1 91 }
mazgch 9:e7a5959ffae1 92 else if (t == '\n') // skip/filter new line
mazgch 9:e7a5959ffae1 93 /* skip */;
mazgch 9:e7a5959ffae1 94 else if (t != '\b') // normal char (no backspace)
mazgch 9:e7a5959ffae1 95 b[o++] = t;
mazgch 9:e7a5959ffae1 96 else if (o > 0) // backspace
mazgch 9:e7a5959ffae1 97 o --; // remove it
mazgch 9:e7a5959ffae1 98 }
mazgch 9:e7a5959ffae1 99 o = 0;
mazgch 9:e7a5959ffae1 100 return WAIT;
mazgch 9:e7a5959ffae1 101 }