This example demonstrates the usage of mailbox library API's.

Each IPI channel can trigger an interrupt to itself and can exchange messages through the message buffer. This feature is used here to exercise the library APIs. Example control flow:

• Initialize the XMailbox instance
• Write a Message and Trigger IPI to Self in Blocing mode.
• Interrupt handler receives IPI and Sends back response.
• Read the received response and do a sanity check.
• Print PASS or FAIL based on sanity check of response message

MODIFICATION HISTORY:

Ver   Who     Date     Changes



1.0   adk     14/02/19  Initial Release
1.2   adk     26/03/20  Updated the Remote Channel ID to use IPIPSU driver
                  Canonical define inorder make this example work for
                  all supported processors.
1.8     ht      05/30/23  Added support for system device-tree flow.
1.11    ht      11/12/24  Update description of TEST_MSG_LEN
        ht      11/25/24  Update Message length to accommodate for CRC bytes when
                          IPI CRC is enabled
      ht        01/02/25  Fix GCC warnings.