110 lines
4.5 KiB
C
110 lines
4.5 KiB
C
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/*---------------------------------------------------------------------------------------------------------------------------------------------------
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* irmpextlog.c - external logging
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*
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* $Id: irmpextlog.c,v 1.6 2017/02/17 09:13:06 fm Exp $
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*
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* If you cannot use the internal UART logging routine, adapt the
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* source below for your application. The following implementation
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* is an example for a PIC 18F2550 with USB interface.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*---------------------------------------------------------------------------------------------------------------------------------------------------
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*/
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#include "irmp.h"
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#if IRMP_EXT_LOGGING == 1
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#include "irmpextlog.h"
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#include "system/usb/usb.h"
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#define bit_set(var,bitnr) ((var) |= 1 << (bitnr)) // set single bit in byte
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#define loglen 50 // byte length for saving the data from irmp.c
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// check your USB settings for max length of USB interface used for this FW!
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static unsigned char logdata[loglen]; // array for saveing the data from irmp.c
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static unsigned char logindex = 3; // start index of logdata
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static char bitindex = 7; // bit position in current byte
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static unsigned int bitcount;
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/*---------------------------------------------------------------------------------------------------------------------------------------------------
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* Initialize external logging
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*---------------------------------------------------------------------------------------------------------------------------------------------------
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*/
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void
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initextlog (void) // reset all data to default, only during init
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{
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unsigned char i;
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for (i = 0; i < loglen; i++)
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{
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logdata[i] = 0;
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}
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bitcount = 0;
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logindex = 3;
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bitindex = 7;
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}
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/*---------------------------------------------------------------------------------------------------------------------------------------------------
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* Send logging data via device (e.g. USB on PIC)
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*---------------------------------------------------------------------------------------------------------------------------------------------------
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*/
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void
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sendextlog (unsigned char data)
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{
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if (logindex == loglen || data == '\n') // buffer full or \n --> send to application
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{
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if (mUSBUSARTIsTxTrfReady()) // check USB, if ready send
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{
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logdata[0] = 0x01; // indicator for logging, depends on your application
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logdata[1] = logindex; // save how much bytes are send from irmp.c
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logdata[2] = 0; // set \n Index to 0; 0=buffer full; 0xA=\n received
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if (data == '\n')
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{
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logdata[2] = data; // \n --> save \n=0xA in to check in app that \n was received
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}
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mUSBUSARTTxRam((unsigned char *) &logdata, loglen); // send all Data to main Seoftware
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logindex = 3; // reset index
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bitindex = 7; // reset bit position
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logdata[logindex] = 0; // reset value of new logindex to 0
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}
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}
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else
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{
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bitcount++;
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if (data == '1')
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{
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bit_set(logdata[logindex], bitindex); // all logdata[logindex] on start = 0 --> only 1 must be set
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}
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bitindex--; // decrease bitposition, wirte from left to right
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if (bitindex == -1) // byte complete Bit 7->0 --> next one
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{
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bitindex = 7;
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logindex++;
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if (logindex < loglen)
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{
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logdata[logindex] = 0; // set next byte to 0
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}
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}
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}
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}
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#endif //IRMP_EXT_LOGGING
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#if defined(PIC_C18)
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static void
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dummy (void)
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{
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// Only to avoid C18 compiler error
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}
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#endif
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