This short program illustrates how to use the DS130x_I2C library. My objective is to share the same RTC with Microchip 18F MCU.

Dependencies:   mbed DebugLibrary

Committer:
Yann
Date:
Wed Feb 09 13:57:49 2011 +0000
Revision:
0:f30e2135b0db
V0.0.0.1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Yann 0:f30e2135b0db 1
Yann 0:f30e2135b0db 2 /*
Yann 0:f30e2135b0db 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
Yann 0:f30e2135b0db 4
Yann 0:f30e2135b0db 5 Permission is hereby granted, free of charge, to any person obtaining a copy
Yann 0:f30e2135b0db 6 of this software and associated documentation files (the "Software"), to deal
Yann 0:f30e2135b0db 7 in the Software without restriction, including without limitation the rights
Yann 0:f30e2135b0db 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Yann 0:f30e2135b0db 9 copies of the Software, and to permit persons to whom the Software is
Yann 0:f30e2135b0db 10 furnished to do so, subject to the following conditions:
Yann 0:f30e2135b0db 11
Yann 0:f30e2135b0db 12 The above copyright notice and this permission notice shall be included in
Yann 0:f30e2135b0db 13 all copies or substantial portions of the Software.
Yann 0:f30e2135b0db 14
Yann 0:f30e2135b0db 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Yann 0:f30e2135b0db 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Yann 0:f30e2135b0db 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Yann 0:f30e2135b0db 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Yann 0:f30e2135b0db 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Yann 0:f30e2135b0db 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Yann 0:f30e2135b0db 21 THE SOFTWARE.
Yann 0:f30e2135b0db 22 */
Yann 0:f30e2135b0db 23
Yann 0:f30e2135b0db 24 #ifndef NETUDPSOCKET_H
Yann 0:f30e2135b0db 25 #define NETUDPSOCKET_H
Yann 0:f30e2135b0db 26
Yann 0:f30e2135b0db 27 #include "net.h"
Yann 0:f30e2135b0db 28 #include "host.h"
Yann 0:f30e2135b0db 29
Yann 0:f30e2135b0db 30 #include <queue>
Yann 0:f30e2135b0db 31 using std::queue;
Yann 0:f30e2135b0db 32
Yann 0:f30e2135b0db 33 //Implements a Berkeley-like socket if
Yann 0:f30e2135b0db 34 //Can be interfaced either to lwip or a Telit module
Yann 0:f30e2135b0db 35
Yann 0:f30e2135b0db 36 enum NetUdpSocketErr
Yann 0:f30e2135b0db 37 {
Yann 0:f30e2135b0db 38 __NETUDPSOCKET_MIN = -0xFFFF,
Yann 0:f30e2135b0db 39 NETUDPSOCKET_SETUP, //NetUdpSocket not properly configured
Yann 0:f30e2135b0db 40 NETUDPSOCKET_IF, //If has problems
Yann 0:f30e2135b0db 41 NETUDPSOCKET_MEM, //Not enough mem
Yann 0:f30e2135b0db 42 NETUDPSOCKET_INUSE, //If/Port is in use
Yann 0:f30e2135b0db 43 //...
Yann 0:f30e2135b0db 44 NETUDPSOCKET_OK = 0
Yann 0:f30e2135b0db 45 };
Yann 0:f30e2135b0db 46
Yann 0:f30e2135b0db 47 enum NetUdpSocketEvent //Only one lonely event here... but who knows, maybe some day there'll be another one!
Yann 0:f30e2135b0db 48 {
Yann 0:f30e2135b0db 49 NETUDPSOCKET_READABLE, //Data in buf
Yann 0:f30e2135b0db 50 };
Yann 0:f30e2135b0db 51
Yann 0:f30e2135b0db 52
Yann 0:f30e2135b0db 53 class NetUdpSocket
Yann 0:f30e2135b0db 54 {
Yann 0:f30e2135b0db 55 public:
Yann 0:f30e2135b0db 56 NetUdpSocket();
Yann 0:f30e2135b0db 57 virtual ~NetUdpSocket(); //close()
Yann 0:f30e2135b0db 58
Yann 0:f30e2135b0db 59 virtual NetUdpSocketErr bind(const Host& me) = 0;
Yann 0:f30e2135b0db 60
Yann 0:f30e2135b0db 61 virtual int /*if < 0 : NetUdpSocketErr*/ sendto(const char* buf, int len, Host* pHost) = 0;
Yann 0:f30e2135b0db 62 virtual int /*if < 0 : NetUdpSocketErr*/ recvfrom(char* buf, int len, Host* pHost) = 0;
Yann 0:f30e2135b0db 63
Yann 0:f30e2135b0db 64 /* TODO NTH : printf / scanf helpers that call send/recv */
Yann 0:f30e2135b0db 65
Yann 0:f30e2135b0db 66 virtual NetUdpSocketErr close() = 0;
Yann 0:f30e2135b0db 67
Yann 0:f30e2135b0db 68 virtual NetUdpSocketErr poll() = 0;
Yann 0:f30e2135b0db 69
Yann 0:f30e2135b0db 70 class CDummy;
Yann 0:f30e2135b0db 71 //Callbacks
Yann 0:f30e2135b0db 72 template<class T>
Yann 0:f30e2135b0db 73 //Linker bug : Must be defined here :(
Yann 0:f30e2135b0db 74 void setOnEvent( T* pItem, void (T::*pMethod)(NetUdpSocketEvent) )
Yann 0:f30e2135b0db 75 {
Yann 0:f30e2135b0db 76 m_pCbItem = (CDummy*) pItem;
Yann 0:f30e2135b0db 77 m_pCbMeth = (void (CDummy::*)(NetUdpSocketEvent)) pMethod;
Yann 0:f30e2135b0db 78 }
Yann 0:f30e2135b0db 79
Yann 0:f30e2135b0db 80 void resetOnEvent(); //Disable callback
Yann 0:f30e2135b0db 81
Yann 0:f30e2135b0db 82 protected:
Yann 0:f30e2135b0db 83 void queueEvent(NetUdpSocketEvent e);
Yann 0:f30e2135b0db 84 void discardEvents();
Yann 0:f30e2135b0db 85 void flushEvents(); //to be called during polling
Yann 0:f30e2135b0db 86
Yann 0:f30e2135b0db 87 Host m_host;
Yann 0:f30e2135b0db 88 Host m_client;
Yann 0:f30e2135b0db 89
Yann 0:f30e2135b0db 90 friend class Net;
Yann 0:f30e2135b0db 91 int m_refs;
Yann 0:f30e2135b0db 92
Yann 0:f30e2135b0db 93 bool m_closed;
Yann 0:f30e2135b0db 94 bool m_removed;
Yann 0:f30e2135b0db 95
Yann 0:f30e2135b0db 96 private:
Yann 0:f30e2135b0db 97 //We do not want to execute user code in interrupt routines, so we queue events until the server is polled
Yann 0:f30e2135b0db 98 //If we port this to a multithreaded OS, we could avoid this (however some functions here are not thread-safe, so beware ;) )
Yann 0:f30e2135b0db 99 void onEvent(NetUdpSocketEvent e); //To be called on poll
Yann 0:f30e2135b0db 100 CDummy* m_pCbItem;
Yann 0:f30e2135b0db 101 void (CDummy::*m_pCbMeth)(NetUdpSocketEvent);
Yann 0:f30e2135b0db 102 queue<NetUdpSocketEvent> m_events;
Yann 0:f30e2135b0db 103
Yann 0:f30e2135b0db 104 };
Yann 0:f30e2135b0db 105
Yann 0:f30e2135b0db 106 #endif