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#!/usr/bin/env python
# Copyright (c) 2016, Eduard Broecker
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that
# the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this list of conditions and the
# following disclaimer.
# Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
# DAMAGE.
import sys
sys.path.append('..')
import canmatrix.formats
from createCMacros import *
typedef = """
typedef struct Mailbox {
uint8_t data[8];
} Mailbox_t;
"""
processFrame = """
void processFrame(uint32_t canId, uint8_t *framedata, uint8_t dlc)
{
Mailbox_t *mailbox;
mailbox = getRxCanMailBox(canId);
if (mailbox != NULL)
{
memcpy(mailbox->data, framedata, (dlc>8)?8:dlc);
}
}
"""
receiveIdArray = "uint32_t receiveFrameIds[COUNTRXMAILBOXES] = {%s};"
rxMailboxStruct = "Mailbox_t RxCanMailboxes[COUNTRXMAILBOXES];"
txMailboxStruct = "Mailbox_t TxCanMailboxes[COUNTTXMAILBOXES];"
getRxCanMailBox = """
struct Mailbox *getRxCanMailBox(uint32_t canId)
{
uint32_t i;
for(i = 0; i< COUNTRXMAILBOXES; i++)
{
if(canId == receiveFrameIds[i])
return &(RxCanMailboxes[i]);
}
return 0;
}
"""
def main():
if len(sys.argv) <= 2:
print "not yet working script for generating a communication layer for dedicated ECU out of can database"
print "! missing support for sending cyclic messages"
print "! missing any TEST ! "
print " this code is just proofe of concept \n"
print "Usage: createccl.py CanDatabaseFile ECU_Name "
exit()
ccl_h = "#ifndef __CCL_H__\n#define __CCL_H__\n\n"
ccl_h += "typedef unsigned char uint8;\ntypedef unsigned int uint32;\n\n"
ccl_c = "#include <string.h>\n#include <stdint.h>\n#include \"ccl.h\"\n\n"
infile = sys.argv[1]
ecu = sys.argv[2]
dbs = canmatrix.formats.loadp(infile)
db = next(iter(dbs.values()))
receiveArray = []
receiveDict = {}
receiveIndex = 0
sendIndex = 0
txDict = {}
for frame in db.frames:
if ecu in frame.receivers:
receiveArray.append(frame.arbitration_id.id)
receiveDict[frame] = receiveIndex
receiveIndex += 1
if ecu in frame.transmitters:
txDict[frame] = sendIndex
sendIndex += 1
# print frame.name
# if frame.effective_cycletime != 0:
# print frame.name,
# print frame.effective_cycletime
# ccl_h += createStoreMacrosForFrame(frame, "_" + frame.name + "_")
tempStr = ""
for canid in receiveArray:
tempStr += hex(canid) + ", "
ccl_c += rxMailboxStruct + "\n"
ccl_c += txMailboxStruct + "\n"
ccl_c += receiveIdArray % (tempStr) + "\n"
ccl_c += getRxCanMailBox + "\n"
ccl_c += processFrame + "\n"
ccl_h += "#define COUNTRXMAILBOXES %d" % (receiveArray.__len__()) + "\n"
ccl_h += "#define COUNTTXMAILBOXES %d" % (txDict.__len__()) + "\n"
ccl_h += typedef + "\n"
ccl_h += "extern " + rxMailboxStruct + "\n"
ccl_h += "extern " + txMailboxStruct + "\n"
for frame in receiveDict:
for signal in frame.signals:
if ecu in signal.receivers:
ccl_h += createDecodeMacro(signal, "_" +
frame.name +
"__", "", "RxCanMailboxes[%d].data" %
(receiveDict[frame]))
# for complete frame:
# ccl_h += createDecodeMacrosForFrame(frame, "_" + frame.name + "__", "", "RxCanMailboxes[%d].data" % (receiveDict[frame]))
for frame in txDict:
ccl_h += createStoreMacrosForFrame(frame, "_" +
frame.name +
"_", framename="TxCanMailboxes[%d].data" %
txDict[frame])
ccl_h += "\n\n#endif /* __CCL_H___ */"
cfile = open("ccl.c", "w")
cfile.write(ccl_c)
cfile.close()
hfile = open("ccl.h", "w")
hfile.write(ccl_h)
hfile.close()
if __name__ == '__main__':
sys.exit(main())
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