How to use the uart driver?

Hello,
I'm integrating uart interface to the module.
Currently I'm able to transmit bytes to and from the chip according the peripheral_examples.c -- so HW functions.
How ever for the application integration, I need a bit more efficient solution.

There seem to be a quite advanced uart driver at:
DA14580_581_583_SDK_3.0.10.1/dk_apps/src/plf/refip/src/driver/uart/
but I didn't found any examples of how to config and use it.

I looking something that hides the driver below functions like:
int read(*buffer,buff_size); //returns bytes read. (0..buff_size -- negative for error)
int write(*buffer,size); //returns bytes written -- negative for error

Any ideas?