/*----------------------------------------------------------------------------*\
\*----------------------------------------------------------------------------*/

#ifndef _AVM_GPIO_H_
#define _AVM_GPIO_H_


#define GPIO_OK (0)
#define GPIO_FAIL (-1)

enum _hw_gpio_function {
	FUNCTION_PINMUX0      = 0,
	FUNCTION_PINMUX1      = 1,
	FUNCTION_PINMUX2      = 2,
	FUNCTION_PINMUX3      = 3,
	FUNCTION_PINMUX4      = 4,
	FUNCTION_PINMUX5      = 5,
	FUNCTION_PINMUX6      = 6,
	FUNCTION_PINMUX7      = 7,
	FUNCTION_PIN_NOCHANGE,
};

#define GPIO_PIN FUNCTION_PINMUX5

enum _hw_gpio_direction {
	GPIO_INPUT_PIN = 0,
	GPIO_OUTPUT_PIN = 1
};

enum _hw_gpio_polarity {
	GPIO_ACTIVE_HIGH = 0,
	GPIO_ACTIVE_LOW = 1
};

enum _hw_gpio_sensitivity {
	GPIO_LEVEL_SENSITIVE = 0,
	GPIO_EDGE_SENSITIVE = 1,
	GPIO_BOTH_EDGES_SENSITIVE = 2
};

typedef enum _hw_gpio_function GPIO_MODE;
typedef enum _hw_gpio_direction GPIO_DIR;
typedef enum _hw_gpio_polarity GPIO_POLAR;

int brcm_gpio_init(void);
int brcm_gpio_ctrl(unsigned int gpio_pin, enum _hw_gpio_function pin_mode,
		   enum _hw_gpio_direction pin_dir);
int brcm_button_request_callback(unsigned int mask, enum _hw_gpio_polarity mode,
				 enum _hw_gpio_sensitivity edge,
				 int (*handle_func)(unsigned int));
void brcm_button_disable_callback(int index);
int brcm_gpio_out_bit(unsigned int gpio_pin, int value);
int brcm_gpio_out_bit_no_sched(unsigned int gpio_pin, int value);
int brcm_gpio_in_bit(unsigned int gpio_pin);
void brcm_gpio_set_bitmask(uint64_t mask, uint64_t value);


#endif /*--- #ifndef _AVM_GPIO_H_ ---*/