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RPi: Add support for I2C

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Add MyHw file for RaspberryPi.

Fix compilation warnings in x86.

Fix some error messages.
This commit is contained in:
Marcelo Aquino
2016-10-16 13:40:23 -02:00
parent 3d51b31e71
commit 69ac4b759a
21 changed files with 817 additions and 147 deletions
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core/MyHwLinuxGeneric.cpp
+23 -82
View File
@@ -20,109 +20,43 @@
#include "MyHwLinuxGeneric.h"
#include <stdarg.h>
#include <string.h>
#include <iostream>
#include <fstream>
#include <sys/stat.h>
#include <time.h>
#include "SoftEeprom.h"
#include "log.h"
static const char* CONFIG_FILE = MY_LINUX_CONFIG_FILE;
static const size_t _length = 1024; // ATMega328 has 1024 bytes
static uint8_t _config[_length];
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);
std::ofstream myFile(CONFIG_FILE, std::ios::out | std::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 < 0 || (size_t)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.
std::ifstream myFile(CONFIG_FILE, std::ios::in | std::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;
}
static SoftEeprom eeprom = SoftEeprom(MY_LINUX_CONFIG_FILE, 1024); // ATMega328 has 1024 bytes
void hwInit()
{
for (size_t i = 0; i < _length; i++) {
_config[i] = 0xFF;
}
if (!CheckConfigFile()) {
exit(1);
}
#ifdef MY_GATEWAY_SERIAL
MY_SERIALDEVICE.begin(MY_BAUD_RATE);
#ifdef MY_LINUX_SERIAL_GROUPNAME
if (!MY_SERIALDEVICE.setGroupPerm(MY_LINUX_SERIAL_GROUPNAME)) {
debug("Unable to change permission for serial port device.\n");
exit(1);
}
#endif
#ifdef MY_GATEWAY_SERIAL
MY_SERIALDEVICE.begin(MY_BAUD_RATE);
#ifdef MY_LINUX_SERIAL_GROUPNAME
if (!MY_SERIALDEVICE.setGroupPerm(MY_LINUX_SERIAL_GROUPNAME)) {
mys_log(LOG_ERR, "Unable to change permission for serial port device.\n");
exit(1);
}
#endif
#endif
}
void hwReadConfigBlock(void* buf, void* addr, size_t length)
{
unsigned long int offs = reinterpret_cast<unsigned long int>(addr);
if (length && offs + length <= _length) {
memcpy(buf, _config+offs, length);
}
eeprom.readBlock(buf, addr, length);
}
void hwWriteConfigBlock(void* buf, void* addr, size_t length)
{
unsigned long int offs = reinterpret_cast<unsigned long int>(addr);
if (length && offs + length <= _length) {
memcpy(_config+offs, buf, length);
std::ofstream myFile(CONFIG_FILE, std::ios::out | std::ios::in | std::ios::binary);
if (!myFile) {
debug("Unable to write config to file %s.\n", CONFIG_FILE);
return;
}
myFile.seekp(offs);
myFile.write((const char*)buf, length);
myFile.close();
}
eeprom.writeBlock(buf, addr, length);
}
uint8_t hwReadConfig(int adr)
uint8_t hwReadConfig(int addr)
{
uint8_t value = 0xFF;
hwReadConfigBlock(&value, reinterpret_cast<void*>(adr), 1);
return value;
return eeprom.readByte(addr);
}
void hwWriteConfig(int adr, uint8_t value)
void hwWriteConfig(int addr, uint8_t value)
{
uint8_t curr = hwReadConfig(adr);
if (curr != value) {
hwWriteConfigBlock(&value, reinterpret_cast<void*>(adr), 1);
}
eeprom.writeByte(addr, value);
}
void hwRandomNumberInit()
@@ -130,6 +64,11 @@ void hwRandomNumberInit()
randomSeed(time(NULL));
}
unsigned long hwMillis()
{
return millis();
}
// Not supported!
int8_t hwSleep(unsigned long ms)
{
@@ -160,6 +99,7 @@ int8_t hwSleep(uint8_t interrupt1, uint8_t mode1, uint8_t interrupt2, uint8_t mo
return MY_SLEEP_NOT_POSSIBLE;
}
#if defined(MY_DEBUG) || defined(MY_SPECIAL_DEBUG)
uint16_t hwCPUVoltage()
{
// TODO: Not supported!
@@ -177,6 +117,7 @@ uint16_t hwFreeMem()
// TODO: Not supported!
return 0;
}
#endif
#ifdef MY_DEBUG
void hwDebugPrint(const char *fmt, ...)