FirmConfigSource.cpp

00001 /*
00002       This file is part of Smoothie (http://smoothieware.org/). The motion control part is heavily based on Grbl (https://github.com/simen/grbl).
00003       Smoothie is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
00004       Smoothie is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
00005       You should have received a copy of the GNU General Public License along with Smoothie. If not, see <http://www.gnu.org/licenses/>.
00006 */
00007 
00008 #include "libs/Kernel.h"
00009 #include "ConfigValue.h"
00010 #include "FirmConfigSource.h"
00011 #include "ConfigCache.h"
00012 
00013 
00014 using namespace std;
00015 #include <string>
00016 
00017 // we use objdump in the Makefile to import your config.default file into the compiled code
00018 // Since the two symbols below are derived from the filename, we need to change them if the filename changes
00019 extern char _binary_config_default_start;
00020 extern char _binary_config_default_end;
00021 
00022 
00023 FirmConfigSource::FirmConfigSource(uint16_t name_checksum){
00024     this->name_checksum = name_checksum;
00025 }
00026 
00027 // Transfer all values found in the file to the passed cache
00028 void FirmConfigSource::transfer_values_to_cache( ConfigCache* cache ){
00029 
00030     char* p = &_binary_config_default_start;
00031     // For each line
00032     while( p != &_binary_config_default_end ){
00033         process_char_from_ascii_config(*p++, cache);
00034     }
00035 }
00036 
00037 // Return true if the check_sums match
00038 bool FirmConfigSource::is_named( uint16_t check_sum ){
00039     return check_sum == this->name_checksum;
00040 }
00041 
00042 // Write a config setting to the file *** FirmConfigSource is read only ***
00043 void FirmConfigSource::write( string setting, string value ){
00044     //THEKERNEL->streams->printf("ERROR: FirmConfigSource is read only\r\n");
00045 }
00046 
00047 // Return the value for a specific checksum
00048 string FirmConfigSource::read( uint16_t check_sums[3] ){
00049 
00050     string value = "";
00051 
00052     char* p = &_binary_config_default_start;
00053     // For each line
00054     while( p != &_binary_config_default_end ){
00055         value = process_char_from_ascii_config(*p++, check_sums);
00056         if (value.length())
00057             return value;
00058     }
00059 
00060     return value;
00061 }
00062