fix(Wire): in case of slave, (re)enable interrupt when configuring clock

ABOSTM · fpistm · commit 08334ff809f1 · 2022-08-30T10:06:01.000+02:00
Because TwoWire::setClock() calls i2c_setTiming()
which disable/(re)enable I2C Hardware,
it is necessary to restore interrupts.

Signed-off-by: Alexandre Bourdiol &lt;alexandre.bourdiol@st.com&gt;
diff --git a/libraries/Wire/src/Wire.cpp b/libraries/Wire/src/Wire.cpp
@@ -117,6 +117,10 @@ void TwoWire::end(void)
 void TwoWire::setClock(uint32_t frequency)
 {
   i2c_setTiming(&_i2c, frequency);
+  if (_i2c.isMaster == 0) {
+    i2c_attachSlaveTxEvent(&_i2c, onRequestService);
+    i2c_attachSlaveRxEvent(&_i2c, onReceiveService);
+  }
 }
 
 uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddress, uint8_t isize, uint8_t sendStop)

Original file line number	Diff line number	Diff line change
`@@ -117,6 +117,10 @@ void TwoWire::end(void)`
`117`	`117`	`void TwoWire::setClock(uint32_t frequency)`
`118`	`118`	`{`
`119`	`119`	`i2c_setTiming(&_i2c, frequency);`
	`120`	`+ if (_i2c.isMaster == 0) {`
	`121`	`+ i2c_attachSlaveTxEvent(&_i2c, onRequestService);`
	`122`	`+ i2c_attachSlaveRxEvent(&_i2c, onReceiveService);`
	`123`	`+ }`
`120`	`124`	`}`
`121`	`125`
`122`	`126`	`uint8_t TwoWire::requestFrom(uint8_t address, uint8_t quantity, uint32_t iaddress, uint8_t isize, uint8_t sendStop)`