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 #include "HTTPStream.h"
Yann 0:f30e2135b0db 25
Yann 0:f30e2135b0db 26 #define MIN(a,b) ((a)<(b)?(a):(b))
Yann 0:f30e2135b0db 27
Yann 0:f30e2135b0db 28 HTTPStream::HTTPStream() : HTTPData(), m_buf(NULL), m_size(0), m_len(0)
Yann 0:f30e2135b0db 29 {
Yann 0:f30e2135b0db 30
Yann 0:f30e2135b0db 31 }
Yann 0:f30e2135b0db 32
Yann 0:f30e2135b0db 33 HTTPStream::~HTTPStream()
Yann 0:f30e2135b0db 34 {
Yann 0:f30e2135b0db 35
Yann 0:f30e2135b0db 36 }
Yann 0:f30e2135b0db 37
Yann 0:f30e2135b0db 38
Yann 0:f30e2135b0db 39 void HTTPStream::readNext(byte* buf, int size)
Yann 0:f30e2135b0db 40 {
Yann 0:f30e2135b0db 41 m_buf = buf;
Yann 0:f30e2135b0db 42 m_size = size;
Yann 0:f30e2135b0db 43 m_len = 0;
Yann 0:f30e2135b0db 44 }
Yann 0:f30e2135b0db 45
Yann 0:f30e2135b0db 46 bool HTTPStream::readable()
Yann 0:f30e2135b0db 47 {
Yann 0:f30e2135b0db 48 return (m_len>0);
Yann 0:f30e2135b0db 49 }
Yann 0:f30e2135b0db 50
Yann 0:f30e2135b0db 51 int HTTPStream::readLen()
Yann 0:f30e2135b0db 52 {
Yann 0:f30e2135b0db 53 return m_len;
Yann 0:f30e2135b0db 54 }
Yann 0:f30e2135b0db 55
Yann 0:f30e2135b0db 56 void HTTPStream::clear()
Yann 0:f30e2135b0db 57 {
Yann 0:f30e2135b0db 58 //Do nothing here since it is a stream and not a buffer
Yann 0:f30e2135b0db 59 }
Yann 0:f30e2135b0db 60
Yann 0:f30e2135b0db 61 int HTTPStream::read(char* buf, int len)
Yann 0:f30e2135b0db 62 {
Yann 0:f30e2135b0db 63 return 0; //Unsupported yet
Yann 0:f30e2135b0db 64 }
Yann 0:f30e2135b0db 65
Yann 0:f30e2135b0db 66 int HTTPStream::write(const char* buf, int len)
Yann 0:f30e2135b0db 67 {
Yann 0:f30e2135b0db 68 if(!m_buf)
Yann 0:f30e2135b0db 69 return 0;
Yann 0:f30e2135b0db 70 len = MIN( m_size - m_len, len );
Yann 0:f30e2135b0db 71 memcpy(m_buf + m_len, buf, len);
Yann 0:f30e2135b0db 72 m_len += len;
Yann 0:f30e2135b0db 73 return len;
Yann 0:f30e2135b0db 74 }
Yann 0:f30e2135b0db 75
Yann 0:f30e2135b0db 76 string HTTPStream::getDataType() //Internet media type for Content-Type header
Yann 0:f30e2135b0db 77 {
Yann 0:f30e2135b0db 78 return "";
Yann 0:f30e2135b0db 79 }
Yann 0:f30e2135b0db 80
Yann 0:f30e2135b0db 81 void HTTPStream::setDataType(const string& type) //Internet media type from Content-Type header
Yann 0:f30e2135b0db 82 {
Yann 0:f30e2135b0db 83 //Do not really care here
Yann 0:f30e2135b0db 84 }
Yann 0:f30e2135b0db 85
Yann 0:f30e2135b0db 86 bool HTTPStream::getIsChunked() //For Transfer-Encoding header
Yann 0:f30e2135b0db 87 {
Yann 0:f30e2135b0db 88 return false; //We don't want to chunk this
Yann 0:f30e2135b0db 89 }
Yann 0:f30e2135b0db 90
Yann 0:f30e2135b0db 91 void HTTPStream::setIsChunked(bool chunked) //From Transfer-Encoding header
Yann 0:f30e2135b0db 92 {
Yann 0:f30e2135b0db 93 //Nothing to do
Yann 0:f30e2135b0db 94 }
Yann 0:f30e2135b0db 95
Yann 0:f30e2135b0db 96 int HTTPStream::getDataLen() //For Content-Length header
Yann 0:f30e2135b0db 97 {
Yann 0:f30e2135b0db 98 return 0;
Yann 0:f30e2135b0db 99 }
Yann 0:f30e2135b0db 100
Yann 0:f30e2135b0db 101 void HTTPStream::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
Yann 0:f30e2135b0db 102 {
Yann 0:f30e2135b0db 103
Yann 0:f30e2135b0db 104 }