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Merge pull request #373 from DCC-EX:ex-ioexpander-no-analogue-pins-fix

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Ex-ioexpander-no-analogue-pins-fix
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peteGSX 2023-12-19 18:49:18 +10:00 committed by GitHub
commit 1398cf1999
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2 changed files with 31 additions and 28 deletions
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20
IO_EXIOExpander.h
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@ -22,13 +22,10 @@
* This device driver will configure the device on startup, along with
* interacting with the device for all input/output duties.
*
* To create EX-IOExpander devices, these are defined in myHal.cpp:
* To create EX-IOExpander devices, these are defined in myAutomation.h:
* (Note the device driver is included by default)
*
* void halSetup() {
* // EXIOExpander::create(vpin, num_vpins, i2c_address);
* EXIOExpander::create(800, 18, 0x65);
* }
* HAL(EXIOExpander,800,18,0x65)
*
* All pins on an EX-IOExpander device are allocated according to the pin map for the specific
* device in use. There is no way for the device driver to sanity check pins are used for the
@ -98,6 +95,7 @@ private:
_numAnaloguePins = receiveBuffer[2];
// See if we already have suitable buffers assigned
if (_numDigitalPins>0) {
size_t digitalBytesNeeded = (_numDigitalPins + 7) / 8;
if (_digitalPinBytes < digitalBytesNeeded) {
// Not enough space, free any existing buffer and allocate a new one
@ -105,6 +103,9 @@ private:
_digitalInputStates = (byte*) calloc(_digitalPinBytes, 1);
_digitalPinBytes = digitalBytesNeeded;
}
}
if (_numAnaloguePins>0) {
size_t analogueBytesNeeded = _numAnaloguePins * 2;
if (_analoguePinBytes < analogueBytesNeeded) {
// Free any existing buffers and allocate new ones.
@ -118,14 +119,15 @@ private:
_analoguePinMap = (uint8_t*) calloc(_numAnaloguePins, 1);
_analoguePinBytes = analogueBytesNeeded;
}
}
} else {
DIAG(F("EX-IOExpander I2C:%s ERROR configuring device"), _I2CAddress.toString());
_deviceState = DEVSTATE_FAILED;
return;
}
}
// We now need to retrieve the analogue pin map
if (status == I2C_STATUS_OK) {
// We now need to retrieve the analogue pin map if there are analogue pins
if (status == I2C_STATUS_OK && _numAnaloguePins>0) {
commandBuffer[0] = EXIOINITA;
status = I2CManager.read(_I2CAddress, _analoguePinMap, _numAnaloguePins, commandBuffer, 1);
}
@ -239,7 +241,7 @@ private:
// If we're not doing anything now, check to see if a new input transfer is due.
if (_readState == RDS_IDLE) {
if (currentMicros - _lastDigitalRead > _digitalRefresh) { // Delay for digital read refresh
if (currentMicros - _lastDigitalRead > _digitalRefresh && _numDigitalPins>0) { // Delay for digital read refresh
// Issue new read request for digital states. As the request is non-blocking, the buffer has to
// be allocated from heap (object state).
_readCommandBuffer[0] = EXIORDD;
@ -247,7 +249,7 @@ private:
// non-blocking read
_lastDigitalRead = currentMicros;
_readState = RDS_DIGITAL;
} else if (currentMicros - _lastAnalogueRead > _analogueRefresh) { // Delay for analogue read refresh
} else if (currentMicros - _lastAnalogueRead > _analogueRefresh && _numAnaloguePins>0) { // Delay for analogue read refresh
// Issue new read for analogue input states
_readCommandBuffer[0] = EXIORDAN;
I2CManager.read(_I2CAddress, _analogueInputBuffer,

3
version.h
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@ -3,7 +3,8 @@
#include "StringFormatter.h"
#define VERSION "5.2.15"
#define VERSION "5.2.16"
// 5.2.16 - Bugfix to allow for devices using the EX-IOExpander protocol to have no analogue or no digital pins
// 5.2.15 - move call to CommandDistributor::broadcastPower() into the TrackManager::setTrackPower(*) functions
// - add repeats to function packets that are not reminded in accordance with accessory packets
// 5.2.14 - Reminder window DCC packet optimization