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reworked mcp initialization

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This commit is contained in:
Jonas Zeunert
2020-01-09 20:26:31 +01:00
parent ee5a87ae15
commit 79276c6b7e
2 changed files with 13 additions and 0 deletions
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11
FlippR-Driver/src/PinController.cpp
View File

@@ -50,6 +50,17 @@ bool PinController::read_pin(uint8_t address)
void PinController::initialize_port_expander(const uint8_t i2c_address, const uint8_t pin_base)
{
auto initialized_port_extender = this->initialized_port_extenders.insert(std::pair<uint8_t, uint8_t>(i2c_address, pin_base);
if(initialized_port_extender->second)
{
if(initialized_port_extender->first->second != pin_base)
{
CLOG(ERROR, OUTPUT_LOGGER) << "Port extender with address " << i2c_address
<< " is already initialized with pin base " << pin_base;
}
return;
}
mcp23017Setup(pin_base, i2c_address);
char hex_string[4];
sprintf(hex_string, "%X", i2c_address);

2
FlippR-Driver/src/PinController.h
View File

@@ -39,6 +39,8 @@ public:
static std::once_flag GPIO_LIB_INITIALIZED;
static std::mutex lock;
std::map<uint8_t, uint8_t> initialized_port_extenders;
};
}