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