Diff: mbedlnk.cpp
- Revision:
- 0:70c3bea805ee
- Child:
- 1:dcf2f8359398
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbedlnk.cpp Tue Nov 30 22:11:18 2010 +0000
@@ -0,0 +1,389 @@
+//---------------------------------------------------------------------------
+// Copyright (C) 2000 Dallas Semiconductor Corporation, All Rights Reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL DALLAS SEMICONDUCTOR BE LIABLE FOR ANY CLAIM, DAMAGES
+// OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+// OTHER DEALINGS IN THE SOFTWARE.
+//
+// Except as contained in this notice, the name of Dallas Semiconductor
+// shall not be used except as stated in the Dallas Semiconductor
+// Branding Policy.
+//---------------------------------------------------------------------------
+//
+// TODO.C - COM functions required to communicate with the DS2480 based
+// Universal Serial Adapter 'U'. Fill in the platform specific code.
+//
+// Version: 2.00
+//
+// History: 1.00 -> 1.01 Added function msDelay.
+//
+// 1.01 -> 1.02 Changed to generic OpenCOM/CloseCOM for easier
+// use with other platforms.
+//
+// 1.02 -> 1.03 Removed caps in #includes for Linux capatibility
+// Add function msGettick()
+// 1.03 -> 2.00 Changed 'MLan' to 'ow'. Added support for
+// multiple ports.
+//
+
+#include "./Headers/ownet.h"
+#include "mbed.h"
+#include <string>
+using namespace std;
+
+Serial comport(p9, p10); // tx, rx
+
+
+// exportable functions required
+SMALLINT OpenCOM(int,char *);
+SMALLINT WriteCOM(int,int,uchar *);
+void FlushCOM(int);
+int ReadCOM(int,int,uchar *);
+void BreakCOM(int);
+void SetBaudCOM(int,int);
+void CloseCOM(int);
+long msGettick(void);
+void msDelay(int);
+SMALLINT owHasPowerDelivery(int);
+SMALLINT owHasOverDrive(int);
+SMALLINT owHasProgramPulse(int);
+SMALLINT owWriteBytePower(int,SMALLINT);
+SMALLINT owReadBitPower(int,SMALLINT);
+
+
+//---------------------------------------------------------------------------
+// Attempt to open a com port. Keep the handle in ComID.
+// Set the starting baud rate to 9600.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number provided will
+// be used to indicate the port number desired when calling
+// all other functions in this library.
+//
+// 'port_zstr' - zero terminate port name. For this platform
+// use format COMX where X is the port number.
+//
+//
+// Returns: TRUE(1) - success, COM port opened
+// FALSE(0) - failure, could not open specified port
+//
+SMALLINT OpenCOM(int portnum, char *port_zstr)
+{
+ comport.baud( 9600);
+ return 1;
+}
+
+//---------------------------------------------------------------------------
+// Attempt to open a com port. Keep the handle in ComID.
+// Set the starting baud rate to 9600.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number provided will
+// be used to indicate the port number desired when calling
+// all other functions in this library.
+//
+//
+// Returns: the port number if it was successful otherwise -1
+//
+int OpenCOMEx(char *port_zstr)
+{
+ int portnum = -1;
+
+ if ( port_zstr[0] == '0')
+ {
+ portnum = 0;
+ }
+
+ if ( port_zstr[0] == '1')
+ {
+ portnum = 1;
+ }
+
+ if(!OpenCOM(portnum, port_zstr))
+ {
+ return -1;
+ }
+
+ return portnum;
+}
+
+//---------------------------------------------------------------------------
+// Closes the connection to the port.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+//
+void CloseCOM(int portnum)
+{
+ // add platform specific code here - Done
+}
+
+//---------------------------------------------------------------------------
+// Flush the rx and tx buffers
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+//
+void FlushCOM(int portnum)
+{
+ // add platform specific code here - Done
+ while( comport.readable() )
+ {
+ comport.getc();
+ }
+}
+
+//--------------------------------------------------------------------------
+// Write an array of bytes to the COM port, verify that it was
+// sent out. Assume that baud rate has been set.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+// 'outlen' - number of bytes to write to COM port
+// 'outbuf' - pointer ot an array of bytes to write
+//
+// Returns: TRUE(1) - success
+// FALSE(0) - failure
+//
+SMALLINT WriteCOM(int portnum, int outlen, uchar *outbuf)
+{
+ // add platform specific code here - Done
+ for ( int x=0; x < outlen; x++ )
+ {
+ comport.putc( outbuf[x]);
+ }
+
+ while ( (LPC_UART3->LSR & 0x40) == 0 );
+ {
+ }
+
+/*
+ printf ("\r\n Sent Data: ");
+ for ( int x=0; x < outlen; x++ )
+ {
+ printf ( " %X ", outbuf[x] );
+ }
+ printf ("\r\n");
+*/
+ return 1;
+}
+
+//--------------------------------------------------------------------------
+// Read an array of bytes from the COM port, verify that it was
+// received. Assume that baud rate has been set.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+// 'inlen' - number of bytes to read from COM port
+// 'inbuf' - pointer to a buffer to hold the incoming bytes
+//
+// Returns: number of characters read
+//
+int ReadCOM(int portnum, int inlen, unsigned char *inbuf)
+{
+ // add platform specific code here - Done
+ string buffer ("");
+ Timer t;
+ int numchar = 0;
+
+ t.start(); // Start timeout timer
+
+ while ( t.read_ms() < 1000 ) // If we haven't timed out....
+ {
+ if ( comport.readable() )
+ {
+ int read = comport.getc();
+
+ buffer += read;
+ numchar++;
+ t.reset();
+ }
+
+ if (numchar == inlen)
+ {
+ break;
+ }
+ }
+
+ buffer.copy( (char*)inbuf, numchar );
+/*
+ printf ("\r\n Received Data: ");
+ for ( int x=0; x < numchar; x++ )
+ {
+ printf ( " %X ", inbuf[x] );
+ }
+ printf ("\r\n");
+*/
+ return numchar;
+}
+
+
+//--------------------------------------------------------------------------
+// Send a break on the com port for at least 2 ms
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+//
+void BreakCOM(int portnum)
+{
+ // add platform specific code here - Done
+ int time_BREAK = 2;
+
+ // BREAK
+ LPC_UART3->LCR |= 0x40;
+ wait_ms( time_BREAK);
+
+ // MARK AFTER BREAK
+ LPC_UART3->LCR &= ~(0x40);
+}
+
+//--------------------------------------------------------------------------
+// Set the baud rate on the com port.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+// 'new_baud' - new baud rate defined as
+// PARMSET_9600 0x00
+// PARMSET_19200 0x02
+// PARMSET_57600 0x04
+// PARMSET_115200 0x06
+//
+void SetBaudCOM(int portnum, int new_baud)
+{
+ // add platform specific code here
+}
+
+//--------------------------------------------------------------------------
+// Description:
+// Delay for at least 'len' ms
+//
+void msDelay(int len)
+{
+ // add platform specific code here
+ wait_ms( len );
+}
+
+//--------------------------------------------------------------------------
+// Get the current millisecond tick count. Does not have to represent
+// an actual time, it just needs to be an incrementing timer.
+//
+long msGettick(void)
+{
+ // add platform specific code here
+ return 0;
+}
+
+/*
+//--------------------------------------------------------------------------
+// This procedure indicates wether the adapter can deliver power.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+//
+// Returns: TRUE if adapter is capable of delivering power.
+//
+SMALLINT owHasPowerDelivery(int portnum)
+{
+ // add adapter specific code here
+ return TRUE;
+}
+
+//--------------------------------------------------------------------------
+// This procedure indicates wether the adapter can deliver power.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+//
+// Returns: TRUE if adapter is capable of over drive.
+//
+SMALLINT owHasOverDrive(int portnum)
+{
+ // add adapter specific code here
+ return TRUE;
+}
+//--------------------------------------------------------------------------
+// This procedure creates a fixed 480 microseconds 12 volt pulse
+// on the 1-Wire Net for programming EPROM iButtons.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+//
+// Returns: TRUE program volatage available
+// FALSE program voltage not available
+SMALLINT owHasProgramPulse(int portnum)
+{
+ // add adapter specific code here
+ return TRUE;
+}
+*/
+/*
+//--------------------------------------------------------------------------
+// Send 8 bits of communication to the 1-Wire Net and verify that the
+// 8 bits read from the 1-Wire Net is the same (write operation).
+// The parameter 'sendbyte' least significant 8 bits are used. After the
+// 8 bits are sent change the level of the 1-Wire net.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+// 'sendbyte' - 8 bits to send (least significant byte)
+//
+// Returns: TRUE: bytes written and echo was the same
+// FALSE: echo was not the same
+//
+SMALLINT owWriteBytePower(int portnum, SMALLINT sendbyte)
+{
+ // replace if platform has better implementation (faster response)
+ if (!hasPowerDelivery(portnum))
+ return FALSE;
+
+ if(owTouchByte(portnum,sendbyte) != sendbyte)
+ return FALSE;
+
+ if(owLevel(portnum,MODE_STRONG5) != MODE_STRONG5)
+ return FALSE;
+
+ return TRUE;
+}
+*/
+/*
+//--------------------------------------------------------------------------
+// Send 1 bit of communication to the 1-Wire Net and verify that the
+// response matches the 'applyPowerResponse' bit and apply power delivery
+// to the 1-Wire net. Note that some implementations may apply the power
+// first and then turn it off if the response is incorrect.
+//
+// 'portnum' - number 0 to MAX_PORTNUM-1. This number was provided to
+// OpenCOM to indicate the port number.
+// 'applyPowerResponse' - 1 bit response to check, if correct then start
+// power delivery
+//
+// Returns: TRUE: bit written and response correct, strong pullup now on
+// FALSE: response incorrect
+//
+SMALLINT owReadBitPower(int portnum, SMALLINT applyPowerResponse)
+{
+ // replace if platform has better implementation (faster response)
+ if (!hasPowerDelivery(portnum))
+ return FALSE;
+
+ if(owTouchBit(portnum,0x01) != applyPowerResponse)
+ return FALSE;
+
+ if(owLevel(portnum,MODE_STRONG5) != MODE_STRONG5)
+ return FALSE;
+
+ return TRUE;
+}
+*/