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Add IO_PCA9554.h to IODevice.h

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This commit is contained in:
pmantoine 2024-09-18 12:03:22 +10:00
parent 3b35537c68
commit 11c5638782
2 changed files with 10 additions and 3 deletions
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1
IODevice.h
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@ -544,6 +544,7 @@ protected:
#include "IO_PCF8574.h"
#include "IO_PCF8575.h"
#include "IO_PCA9555.h"
#include "IO_PCA9554.h"
#include "IO_duinoNodes.h"
#include "IO_EXIOExpander.h"
#include "IO_trainbrains.h"

12
IO_PCA9554.h
View File

@ -40,8 +40,10 @@ private:
PCA9554(VPIN vpin, uint8_t nPins, I2CAddress I2CAddress, int interruptPin=-1)
: GPIOBase<uint8_t>((FSH *)F("PCA9554"), vpin, nPins, I2CAddress, interruptPin)
{
if (nPins > 8)
if (nPins > 8) {
DIAG(F("PCA9554 nPins %d larger than allowed!"));
nPins = 8;
}
requestBlock.setRequestParams(_I2CAddress, inputBuffer, sizeof(inputBuffer),
outputBuffer, sizeof(outputBuffer));
outputBuffer[0] = REG_INPUT_P0;
@ -81,8 +83,12 @@ private:
}
// This function is invoked when an I/O operation on the requestBlock completes.
void _processCompletion(uint8_t status) override {
if (status == I2C_STATUS_OK)
_portInputState = inputBuffer[0];
if (status == I2C_STATUS_OK)
{
if (_portInputState != (inputBuffer[0] | _portMode))
DIAG(F("PCA9554 inputs changed, value now %x"), inputBuffer[0]);
_portInputState = inputBuffer[0] | _portMode;
}
else
_portInputState = 0xff;
}