Function

This section provides Fixed APIs(defined as Common Interface) to fully control the MediaTek EINT HW. More...

Overview

This section provides Fixed APIs(defined as Common Interface) to fully control the MediaTek EINT HW.

Functions
int	mtk_mhal_eint_enable_debounce (eint_number eint_num, void __iomem *eint_base)
	This function is used to enable EINT debounce. More...
int	mtk_mhal_eint_disable_debounce (eint_number eint_num, void __iomem *eint_base)
	This function is used to disable EINT debounce. More...
int	mtk_mhal_eint_set_polarity (eint_number eint_num, u32 pol, void __iomem *eint_base)
	This function is used to set EINT polarity. More...
int	mtk_mhal_eint_set_dual (eint_number eint_num, u32 dual, void __iomem *eint_base)
	This function is used to set EINT dual-edge. More...
int	mtk_mhal_eint_set_debounce (eint_number eint_num, u32 debounce_time, void __iomem *eint_base)
	This function is used to set EINT debounce time. More...

Function Documentation

int mtk_mhal_eint_enable_debounce	(	eint_number	eint_num,
		void __iomem *	eint_base
	)

This function is used to enable EINT debounce.

Usage: OS-HAL driver should call it in EINT register function to enable debounce.

Parameters

[in]	eint_num	: eint_num is the EINT number, the value is HAL_EINT_NUMBER_0 ~ HAL_EINT_NUMBER_MAX-1.
[in]	eint_base	: EINT base address used to operate hardware register.

Returns

Return "0" if enable debounce success.
Return -#EFAULT if eint_base is NULL.
Return -EINVAL if eint_num is invalid argument.

int mtk_mhal_eint_disable_debounce	(	eint_number	eint_num,
		void __iomem *	eint_base
	)

This function is used to disable EINT debounce.

Usage: OS-HAL driver should call it in EINT unregister function to disable debounce.

Parameters

[in]	eint_num	: eint_num is the EINT number, the value is HAL_EINT_NUMBER_0 ~ HAL_EINT_NUMBER_MAX-1.
[in]	eint_base	: EINT base address used to operate hardware register.

Returns

Return "0" if disable debounce success.
Return -#EFAULT if eint_base is NULL.
Return -EINVAL if eint_num is invalid argument.

int mtk_mhal_eint_set_polarity	(	eint_number	eint_num,
		u32	pol,
		void __iomem *	eint_base
	)

This function is used to set EINT polarity.

Usage: OS-HAL driver should call it in EINT register or set trigger type function

Parameters

[in]	eint_num	: eint_num is the EINT number, the value is HAL_EINT_NUMBER_0 ~ HAL_EINT_NUMBER_MAX-1.
[in]	eint_base	: EINT base address used to operate hardware register.
[in]	pol	: Polarity type

Returns

Return "0" if set polarity success.
Return -#EFAULT if eint_base is NULL.
Return -EINVAL if eint_num or pol is invalid argument.

int mtk_mhal_eint_set_dual	(	eint_number	eint_num,
		u32	dual,
		void __iomem *	eint_base
	)

This function is used to set EINT dual-edge.

Usage: OS-HAL driver should call it in EINT register function to set EINT dual-edge.

Parameters

[in]	eint_num	: eint_num is the EINT number, the value is HAL_EINT_NUMBER_0 ~ HAL_EINT_NUMBER_MAX-1.
[in]	eint_base	: EINT base address used to operate hardware register.
[in]	dual	: Dual =1 :dual-edge detect function enable. Dual =0 :dual-edge detect function disable.

Returns

Return "0" if set dual success.
Return -#EFAULT if eint_base is NULL.
Return -EINVAL if eint_num or dual is invalid argument.

int mtk_mhal_eint_set_debounce	(	eint_number	eint_num,
		u32	debounce_time,
		void __iomem *	eint_base
	)

This function is used to set EINT debounce time.

Usage: OS-HAL driver should call it in EINT register function to set EINT debounce time

Parameters

[in]	eint_num	: eint_num is the EINT number, the value is HAL_EINT_NUMBER_0 ~ HAL_EINT_NUMBER_MAX-1.
[in]	eint_base	: EINT base address used to operate hardware register.
[in]	debounce_time	: EINT trigger's debounce time(unit: ms). Value range is 1, 2, 4, 8, 16, 32, 64, 128.

Returns

Return "0" if set debounce success.
Return -#EFAULT if eint_base is NULL.
Return -EINVAL if eint_num is invalid argument.