CC2530: how can i access gpio in cc2530?

/* Interrupt option - Enable or disable */
#define HAL_KEY_INTERRUPT_DISABLE    0x00
#define HAL_KEY_INTERRUPT_ENABLE     0x01

/* Key state - shift or nornal */
#define HAL_KEY_STATE_NORMAL          0x00
#define HAL_KEY_STATE_SHIFT           0x01

#define HAL_KEY_SW_1 0x01  // Joystick up
#define HAL_KEY_SW_2 0x02  // Joystick right
#define HAL_KEY_SW_5 0x04  // Joystick center
#define HAL_KEY_SW_4 0x08  // Joystick left
#define HAL_KEY_SW_3 0x10  // Joystick down

#define HAL_KEY_SW_6 0x20  // Button S1 if available
#define HAL_KEY_SW_7 0x40  // Button S2 if available

/* Joystick */
#define HAL_KEY_UP     0x01  // Joystick up
#define HAL_KEY_RIGHT  0x02  // Joystick right
#define HAL_KEY_CENTER 0x04  // Joystick center
#define HAL_KEY_LEFT   0x08  // Joystick left
#define HAL_KEY_DOWN   0x10  // Joystick down

/* Buttons */  
#define HAL_PUSH_BUTTON_RIGHT  0x01  // Button right
#define HAL_PUSH_BUTTON_LEFT   0x02  // Button left
#define HAL_PUSH_BUTTON_SELECT 0x04  // Button select
#define HAL_KEY_BUTTON_UP      0x40  // Button up
#define HAL_KEY_BUTTON_DOWN    0x80  // Button down

it is for some board that have joystick and button and etc

they don't comment it to know which pin they r configured as like HAL_PUSH_BUTTON_RIGHT

just see the codes that ridiculous .

where is the port where is an individual pin? how can i know what pin they r talking about in this code