This project uses same license as openamp project.
So copy over open-amp project license file and add AMD copyrights line

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

examples directory will contain different apps demonstrating
various functionality of openamp framework

This particular app was moved from meta-openamp project as
meta-openamp is supposed to have only Yocto bitbake recipes and
not source files.

This app demonstrates fast IPC communication without data corruption
between Host and Remote processor. IPC communication is done via
rpmsg framework in kernelspace

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

README file describes functionality of this application.
It also contains information about corresponding remote firmware

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

Fix description of the app and add SPDX license Identifier

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

Print help text if any unwanted  command line option is passed.
Also use strtol over atoi to convert command line string to decimal
where required.

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

rpmsg_create_ept name is used in open-amp library.
Change this API name to app_rpmsg_create_ept to avoid confusion

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

Kernel uses rpmsg_ctrl from virtio0.rpmsg_ctrl.0.0 directory.
Add this support without breaking backward compatibility

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

use __progname instead of hardcode binary name

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

Attempt to probe rpmsg_ctrl driver for kernel >= 6.0.
If failed, then assume it's kernel < 6.0 and continue execution.

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>

replace "Master" with "Host"

Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>