130 lines
4.3 KiB
C
130 lines
4.3 KiB
C
/**
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* @file tunerstudio_algo.c
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* @brief Tuner Studio plain protocol implementation
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*
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*
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* Tuner Studio has a really simple protocol, a minimal implementation
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* capable of displaying current engine state on the gauges would
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* require only two commands: queryCommand and ochGetCommand
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*
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* queryCommand:
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* Communication initialization command. TunerStudio sends a single byte H
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* ECU response:
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* One of the known ECU id strings. We are using "MShift v0.01" id string.
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*
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* ochGetCommand:
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* Request for output channels state.TunerStudio sends a single byte O
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* ECU response:
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* A snapshot of output channels as described in [OutputChannels] section of the .ini file
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* The length of this block is 'ochBlockSize' property of the .ini file
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*
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* These two commands are enough to get working gauges. In order to start configuring the ECU using
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* tuner studio, three more commands should be implemented:
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*
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* todo: merge this file with tunerstudio.c?
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*
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*
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* @date Oct 22, 2013
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* @author Andrey Belomutskiy, (c) 2012-2014
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*
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* This file is part of rusEfi - see http://rusefi.com
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*
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* rusEfi is free software; you can redistribute it and/or modify it under the terms of
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* the GNU General Public License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* rusEfi is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include "tunerstudio_algo.h"
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#include "tunerstudio_configuration.h"
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#include "engine_configuration.h"
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef TRUE
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#define TRUE (!FALSE)
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#endif
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TunerStudioState tsState;
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TunerStudioOutputChannels tsOutputChannels;
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/**
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* this is a local copy of the configuration. Any changes to this copy
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* have no effect until this copy is explicitly propagated to the main working copy
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*/
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engine_configuration_s tsContstants;
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int tunerStudioHandleCommand(short command) {
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if (command == 'H') {
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handleQueryCommand();
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} else if (command == 'O') {
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handleOutputChannelsCommand();
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} else if (command == 'W') {
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handleValueWriteCommand();
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} else if (command == 'B') {
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handleBurnCommand();
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} else if (command == 'C') {
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handlePageReadCommand();
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} else if (command == 't' || command == 'T') {
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handleTestCommand();
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} else if (command == 'F') {
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tunerStudioDebug("ignoring F");
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/**
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* http://www.msextra.com/forums/viewtopic.php?f=122&t=48327
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* Response from TS support: This is an optional command *
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* "The F command is used to find what ini. file needs to be loaded in TunerStudio to match the controller.
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* If you are able to just make your firmware ignore the command that would work.
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* Currently on some firmware versions the F command is not used and is just ignored by the firmware as a unknown command."
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*/
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} else {
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#if EFI_TUNER_STUDIO_OVER_USB
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/**
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* With TTL there is a real chance of corrupted messages.
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* With serial-over-USB we are not expecting communication errors
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*/
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// fatal("unexpected TunerStudio command in USB mode");
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#endif /* EFI_TUNER_STUDIO_OVER_USB */
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tsState.errorCounter++;
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return FALSE;
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}
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return TRUE;
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}
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void handleQueryCommand(void) {
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tsState.queryCommandCounter++;
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tunerStudioDebug("got H (queryCommand)");
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tunerStudioWriteData((const uint8_t *) TS_SIGNATURE, strlen(TS_SIGNATURE) + 1);
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}
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/**
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* @brief 'Output' command sends out a snapshot of current values
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*/
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void handleOutputChannelsCommand(void) {
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tsState.outputChannelsCommandCounter++;
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// this method is invoked too often to print any debug information
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tunerStudioWriteData((const uint8_t *) &tsOutputChannels, sizeof(TunerStudioOutputChannels));
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}
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void handlePageReadCommand(void) {
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tsState.readPageCommandsCounter++;
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tunerStudioDebug("got C (Constants)");
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tunerStudioWriteData((const uint8_t *) &tsContstants, sizeof(engine_configuration_s));
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}
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void handleTestCommand(void) {
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/**
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* this is NOT a standard TunerStudio command, this is my own
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* extension of the protocol to simplify troubleshooting
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*/
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tunerStudioDebug("got T (Test)\r\n");
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tunerStudioWriteData((const uint8_t *) "alive\r\n", 7);
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}
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