psutils: Add necessary firmware update functions
doUpdate: Adds the main logic for orchestrating the PSU firmware update
process, including ISP setup, firmware download, and verification.
performI2cWriteReadWithRetries: Introduces functionality to perform I2C
write-read operations with configurable retries, and error handling for
robustness.
performI2cReadWrite: Provides the implementation for direct I2C
write-read operations with a customizable delay to ensure timing
requirements are met.
downloadPsuFirmware: Implements the functionality to read and process
PSU firmware in blocks, ensuring data integrity during transfer.
verifyDownloadFwStatus: Adds a mechanism to validate the success of
firmware downloads by checking the PSU's checksum status register.
getClassInstance: Add logic to dynamically instantiate updater class
based on PSU model.
Test:
Placed latest firmware and MANIFEST files in "/usr/share/obmc/51E9"
then retrieved the current PSU FW level. Ran "psutils" on the command
line as follow:
/usr/bin/psutils --update
/xyz/openbmc_project/inventory/system/chassis/motherboard/powersupply1
/usr/share/obmc/51E9
Retrieved the FW level and verified the PSU FW was updated as
expected.
Signed-off-by: Faisal Awada <faisal@us.ibm.com>
Change-Id: I65d0c015eab0322110e85b954a38590332aaa67a
Signed-off-by: Faisal Awada <faisal@us.ibm.com>
diff --git a/tools/power-utils/utils.cpp b/tools/power-utils/utils.cpp
index e70004d..9517680 100644
--- a/tools/power-utils/utils.cpp
+++ b/tools/power-utils/utils.cpp
@@ -176,6 +176,10 @@
std::string getDeviceName(std::string devPath)
{
+ if (devPath.empty())
+ {
+ return devPath;
+ }
if (devPath.back() == '/')
{
devPath.pop_back();