Add retry support to I2CInterface
Enhance the I2CInterface class hierarchy to support retrying failed I2C
operations.
Add an optional parameter to i2c::create() to specify the maximum number
of retries to perform for an I2C operation. Default to 0 retries so
that existing code will not be affected.
Testing:
* Tested each modified function
* When I2C operation succeeds
* When I2C operation fails
* When no retries are done
* When retries are done
* When retried operation succeeds
* When retried operation fails
* See complete test plan at
https://gist.github.com/smccarney/8d203a40d9984402ac495dc3d689c12d
Signed-off-by: Shawn McCarney <shawnmm@us.ibm.com>
Change-Id: I2b0e782e5caaafa9908ef5625687377b959b38ff
diff --git a/tools/i2c/test/mocked_i2c_interface.cpp b/tools/i2c/test/mocked_i2c_interface.cpp
index 2fed41e..4747490 100644
--- a/tools/i2c/test/mocked_i2c_interface.cpp
+++ b/tools/i2c/test/mocked_i2c_interface.cpp
@@ -7,7 +7,7 @@
std::unique_ptr<I2CInterface>
create(uint8_t /*busId*/, uint8_t /*devAddr*/,
- I2CInterface::InitialState /*initialState*/)
+ I2CInterface::InitialState /*initialState*/, int /*maxRetries*/)
{
return std::make_unique<MockedI2CInterface>();
}