buffer: Implement "readErrorLogs"

This is the API that will be called by the main to read all of the error
logs. Found a cornercase in wraparoundRead, so added a unit test to
guard it as well.

Test

buffer: Implement "readErrorLogs"

This is the API that will be called by the main to read all of the error
logs. Found a cornercase in wraparoundRead, so added a unit test to
guard it as well.

Tested:
Unit tested and tested on a real HW (with the following changes)

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I94cd3a2f53ee7da2c145b751c1c3b5989f4c5b23

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buffer: bugfix (v3) fix the checksum

The BIOS is expected to use the XOR checksum which behaves ever so
slightly different compared to summing up the bytes (even though
bitwise XOR is the same as ad

buffer: bugfix (v3) fix the checksum

The BIOS is expected to use the XOR checksum which behaves ever so
slightly different compared to summing up the bytes (even though
bitwise XOR is the same as addition).

Fixed the unit test accordingly

Tested: Unit test + tested on a BIOS with real / valid checksummed
payload

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I326f814eb66892971ec32f0572618a34825d88b0

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buffer: bugfix (v2) consolidate the offset and readptr

- It didn't make sense to make the user keep count of the different
types of read pointers, instead do the relative calculation at the
lowe

buffer: bugfix (v2) consolidate the offset and readptr

- It didn't make sense to make the user keep count of the different
types of read pointers, instead do the relative calculation at the
lowest level (wraparoundRead)
- Added further tests to prove out that readPtr is being updated
properly in wraparoundRead)
- Fixed wraparoundRead, as it was relying on the dataInterface->read to
read until the "end". The "end" was fixed in the bugfix #1 to be the
end of the queue instead of the mmaped buffer.
- took out addtionalBoundaryCheck from wraparoundRead, as it was no
longer needed

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I101360223597d197362dc1dbe4a27601da09933f

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buffer: bugfixes and cleanups

- Added clarifying comments regarding the different offsets
- Fixed an instance in wraparoundRead where we updated the readPtr
with the relative offset
- Added additi

buffer: bugfixes and cleanups

- Added clarifying comments regarding the different offsets
- Fixed an instance in wraparoundRead where we updated the readPtr
with the relative offset
- Added additional checks in initialization to check for buffer size
- Use the queueSize for buffer initialization opposed to the memory
region size for the whole MMIO

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Ib175ed1c9c129c0f9d2b4f9737e2d394f160434d

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buffer: Implement "readEntry"

readEntry reads the entryHeader to figure out how much of the buffer to
read for the entry.

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Cha

buffer: Implement "readEntry"

readEntry reads the entryHeader to figure out how much of the buffer to
read for the entry.

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I390e77c088439c74d100ef4b4cb35e746facd495

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buffer: Implement "readEntryHeader"

Add struct QueueEntryHeader along with it.

Tested: Unit Tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Icbfe8d39db4242664794d8c65a84488aef

buffer: Implement "readEntryHeader"

Add struct QueueEntryHeader along with it.

Tested: Unit Tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Icbfe8d39db4242664794d8c65a84488aeffd23a6

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buffer: Implement "wraparoundRead"

This is a helper function for reading the circular buffer

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I0f7c0e3c0195c82fe932

buffer: Implement "wraparoundRead"

This is a helper function for reading the circular buffer

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I0f7c0e3c0195c82fe932b36babbce0ab8c8405ed

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buffer: Implement "updateReadPtr"

This is a helper function for reading the circular buffer

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I1c34a40bd279ee601de33

buffer: Implement "updateReadPtr"

This is a helper function for reading the circular buffer

Tested: Unit tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I1c34a40bd279ee601de33669aabfec27a959ec44

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buffer: Update cachedBufferHeader during "initialize"

We know what the bufferheader is after we call "initialize" (as we
clear the buffer before updating the known header). Update
cachedBufferHeader

buffer: Update cachedBufferHeader during "initialize"

We know what the bufferheader is after we call "initialize" (as we
clear the buffer before updating the known header). Update
cachedBufferHeader after successful initialization.

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Ia4c6f5258b5ccd0294bba267717b8e77c0bf5449

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Add a class to handle ExternalStorer file writes.

Signed-off-by: Kasun Athukorala <kasunath@google.com>
Change-Id: Ic1092a6a1da3375f595774018abfecd08a3cb7d8

buffer: Implement "readBufferHeader" and enforce endianness

Add buffer header reader and a getter API for the cachedBufferHeader for
testing.

Also update CircularBufferHeader with boost endian libr

buffer: Implement "readBufferHeader" and enforce endianness

Add buffer header reader and a getter API for the cachedBufferHeader for
testing.

Also update CircularBufferHeader with boost endian library.

Tested: Unit Tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I3afaa96f1fab2dd160058e8127dcba494efe3ce7

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buffer: Implement "initialize" and add unit tests

Add buffer headers and the initialization process

Tested: Unit Tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Iaf3c26ce01f71

buffer: Implement "initialize" and add unit tests

Add buffer headers and the initialization process

Tested: Unit Tested

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: Iaf3c26ce01f7109000266cdbc7efa77988eae73b

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Add a class to handle RDE BEJ dictionary data

This class is used to store RDE BEJ dictionary data transmitted
through bios-bmc circular buffer interface.

Signed-off-by: Kasun Athukorala <kasunath@g

Add a class to handle RDE BEJ dictionary data

This class is used to store RDE BEJ dictionary data transmitted
through bios-bmc circular buffer interface.

Signed-off-by: Kasun Athukorala <kasunath@google.com>
Change-Id: Idf7726a9f4647885ede615229d507f233ffb13c5

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pci_handler: Add pci_handler

Taken most of the logic from phoshpor-ipmi-flash:
https://github.com/openbmc/phosphor-ipmi-flash/blob/master/tools/io.cpp

Tested: Unit Test + Tested this on a real mach

pci_handler: Add pci_handler

Taken most of the logic from phoshpor-ipmi-flash:
https://github.com/openbmc/phosphor-ipmi-flash/blob/master/tools/io.cpp

Tested: Unit Test + Tested this on a real machine

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I546d1dff8764e31c9f2fa6c7465ba23a24f6fdea

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Add basic main and meson.build

Main just runs very 1 second, based on the asio timer example.

Tested: Added a debug fprint and verified that it runs every 1 second

Signed-off-by: Brandon Kim <bran

Add basic main and meson.build

Main just runs very 1 second, based on the asio timer example.

Tested: Added a debug fprint and verified that it runs every 1 second

Signed-off-by: Brandon Kim <brandonkim@google.com>
Change-Id: I75c98a39f43d3f7103583171979ce87515c9083d

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