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Save eeprom config data to file

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hwWriteConfig and hwReadConfig now use hwWriteConfigBlock and
hwReadConfigBlock calls for simplicity.
This commit is contained in:
aaron832
2016-08-16 13:37:36 -03:00
committed by Marcelo Aquino
parent ad978196f9
commit 79c263291b
1 changed files with 65 additions and 9 deletions
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libraries/MySensors/core/MyHwLinuxGeneric.cpp
+64 -8
View File
@@ -22,12 +22,51 @@
#include <sys/time.h> #include <sys/time.h>
#include <stdarg.h> #include <stdarg.h>
#include <string.h> #include <string.h>
#include <fstream>
#include <sys/stat.h>
static const char* CONFIG_FILE = "/etc/MySensorGateway.cfg";
static const size_t _length = 1024; // ATMega328 has 1024 bytes static const size_t _length = 1024; // ATMega328 has 1024 bytes
//TODO store _config to a file
static uint8_t _config[_length]; static uint8_t _config[_length];
static unsigned long millis_at_start; static unsigned long millis_at_start;
bool CheckConfigFile() {
struct stat fileInfo;
if(stat(CONFIG_FILE, &fileInfo) != 0)
{
//File does not exist. Create it.
debug("Config file %s does not exist, creating new config file.\n", CONFIG_FILE);
ofstream myFile(CONFIG_FILE, ios::out | ios::binary);
if(!myFile)
{
debug("Unable to create config file %s.\n", CONFIG_FILE);
return false;
}
myFile.write((const char*)_config, _length);
myFile.close();
}
else if(fileInfo.st_size != _length)
{
debug("Config file %s is not the correct size of %i. Please remove the file and a new one will be created.\n", CONFIG_FILE, _length);
return false;
}
else
{
//Read config into local memory.
ifstream myFile(CONFIG_FILE, ios::in | ios::binary);
if(!myFile)
{
debug("Unable to open config to file %s for reading.\n", CONFIG_FILE);
return false;
}
myFile.read((char*)_config, _length);
myFile.close();
}
return true;
}
void hwInit() void hwInit()
{ {
timeval curTime; timeval curTime;
@@ -35,6 +74,11 @@ void hwInit()
for (size_t i = 0; i < _length; i++) for (size_t i = 0; i < _length; i++)
_config[i] = 0xFF; _config[i] = 0xFF;
if (!CheckConfigFile())
{
exit(1);
}
gettimeofday(&curTime, NULL); gettimeofday(&curTime, NULL);
millis_at_start = curTime.tv_sec; millis_at_start = curTime.tv_sec;
} }
@@ -54,20 +98,32 @@ void hwWriteConfigBlock(void* buf, void* addr, size_t length)
if (length && offs + length <= _length) { if (length && offs + length <= _length) {
memcpy(_config+offs, buf, length); memcpy(_config+offs, buf, length);
ofstream myFile(CONFIG_FILE, ios::out | ios::binary);
if(!myFile)
{
debug("Unable to write config to file %s.\n", CONFIG_FILE);
return;
}
myFile.write((const char*)buf+offs, _length);
myFile.close();
} }
} }
uint8_t hwReadConfig(int addr) uint8_t hwReadConfig(int adr)
{ {
if (addr >= 0 && (unsigned)addr < _length) uint8_t value = 0xFF;
return _config[addr]; hwReadConfigBlock(&value, reinterpret_cast<void*>(adr), 1);
return 0xFF; return value;
} }
void hwWriteConfig(int addr, uint8_t value) void hwWriteConfig(int adr, uint8_t value)
{ {
if (addr >= 0 && (unsigned)addr < _length) uint8_t curr = hwReadConfig(adr);
_config[addr] = value; if (curr != value)
{
hwWriteConfigBlock(&value, reinterpret_cast<void*>(adr), 1);
}
} }
unsigned long hwMillis() unsigned long hwMillis()