Msp432 Lauchpad GPIO Driver

Hello Guys, I am new to RTOS and freeRTOS. I am struggling to make work GPIO pins of MSP432 launchpad. I dont know where to start from, what and where are the drivers for msp432. I want to the location of msp432 drivers in RTOSDemo project and how to invoke it in the program. Thank you

Msp432 Lauchpad GPIO Driver

GPIO functions are provided by the TI SDK, not FreeRTOS.