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/** @file
Copyright 2020 NXP
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef GPIO_H__
#define GPIO_H__
#include <Uefi.h>
/* enum for GPIO number */
typedef enum _GPIO_BLOCK {
GPIO1,
GPIO2,
GPIO3,
GPIO4,
GPIO_MAX
} GPIO_BLOCK;
/* enum for GPIO direction */
typedef enum _GPIO_DIRECTION {
INPUT,
OUTPUT
} GPIO_DIRECTION;
/* enum for GPIO state */
typedef enum _GPIO_STATE {
LOW,
HIGH
} GPIO_VAL;
/**
GpioSetDiriection: Set GPIO direction as INPUT or OUTPUT
@param[in] Id GPIO controller number
@param[in] Bit GPIO number
@param[in] Dir GPIO Direction as INPUT or OUTPUT
@retval EFI_SUCCESS
**/
EFI_STATUS
GpioSetDirection (
IN UINT8 Id,
IN UINT32 Bit,
IN BOOLEAN Dir
);
/**
GpioGetDirection: Retrieve GPIO direction
@param[in] Id GPIO controller number
@param[in] Bit GPIO number
@retval GPIO Direction as INPUT or OUTPUT
**/
UINT32
GpioGetDirection (
IN UINT8 Id,
IN UINT32 Bit
);
/**
GpioGetData: Retrieve GPIO Value
@param[in] Id GPIO controller number
@param[in] Bit GPIO number
@retval GPIO value as HIGH or LOW
**/
UINT32
GpioGetData (
IN UINT8 Id,
IN UINT32 Bit
);
/**
GpioSetData: Set GPIO data Value
@param[in] Id GPIO controller number
@param[in] Bit GPIO number
@param[in] Data GPIO data value to set
@retval GPIO value as HIGH or LOW
**/
EFI_STATUS
GpioSetData (
IN UINT8 Id,
IN UINT32 Bit,
IN BOOLEAN Data
);
/**
GpioSetOpenDrain: Set GPIO as Open drain
@param[in] Id GPIO controller number
@param[in] Bit GPIO number
@param[in] OpenDrain Set as open drain
@retval EFI_SUCCESS
**/
EFI_STATUS
GpioSetOpenDrain (
IN UINT8 Id,
IN UINT32 Bit,
IN BOOLEAN OpenDrain
);
#endif
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