exti_common.c File Reference

#include "hal/driver/driver.h"

Macros
#define	VSF_EXTI_CFG_FUNCTION_RENAME   DISABLED

Functions
vsf_err_t	vsf_exti_config_channels (vsf_exti_t *exti_ptr, vsf_exti_channel_mask_t channel_mask, vsf_exti_channel_cfg_t *cfg_ptr)
	Configure one or more channels of the exti instance.
vsf_err_t	vsf_exti_init (vsf_exti_t *exti_ptr)
	Initialize a EXTI instance.
void	vsf_exti_fini (vsf_exti_t *exti_ptr)
	Finalize a EXTI instance.
vsf_exti_status_t	vsf_exti_status (vsf_exti_t *exti_ptr)
	Get the status of EXTI instance.
vsf_exti_capability_t	vsf_exti_capability (vsf_exti_t *exti_ptr)
	Get the capability of exti instance.
vsf_err_t	vsf_exti_trigger (vsf_exti_t *exti_ptr, vsf_exti_channel_mask_t channel_mask)
	Trigger EXTI channels.
vsf_err_t	vsf_exti_irq_enable (vsf_exti_t *exti_ptr, vsf_exti_channel_mask_t channel_mask)
	Enable interrupt of one or more channels.
vsf_err_t	vsf_exti_irq_disable (vsf_exti_t *exti_ptr, vsf_exti_channel_mask_t channel_mask)
	Disable interrupt of one or more channels.

Macro Definition Documentation

VSF_EXTI_CFG_FUNCTION_RENAME

#define VSF_EXTI_CFG_FUNCTION_RENAME   DISABLED

Function Documentation

vsf_exti_config_channels()

vsf_err_t vsf_exti_config_channels	(	vsf_exti_t *	exti_ptr,
		vsf_exti_channel_mask_t	channel_mask,
		vsf_exti_channel_cfg_t *	cfg_ptr
	)

Configure one or more channels of the exti instance.

Parameters

[in]	exti_ptr	a pointer to structure vsf_exti_t
[in]	channel_mask	channel mask, each channel corresponds to one bit, the value of this bit 1 means the configuration will be applied to the corresponding channel
[in]	cfg_ptr	a pointer to structure vsf_exti_channel_cfg_t

Returns

vsf_err_t: VSF_ERR_NONE if EXTI Configuration Successful, or a negative error code

vsf_exti_init()

vsf_err_t vsf_exti_init

(

vsf_exti_t *

exti_ptr

)

Initialize a EXTI instance.

Parameters

[in]

exti_ptr

a pointer to structure vsf_exti_t

Returns

vsf_err_t: VSF_ERR_NONE if initialization successful, otherwise returns error code

Note

It is not necessary to call vsf_exti_fini() to deinitialization. vsf_exti_init() should be called before any other EXTI API except vsf_exti_capability().

vsf_exti_fini()

void vsf_exti_fini

(

vsf_exti_t *

exti_ptr

)

Finalize a EXTI instance.

Parameters

[in]

exti_ptr

a pointer to structure vsf_exti_t

Returns

none

vsf_exti_status()

vsf_exti_status_t vsf_exti_status

(

vsf_exti_t *

exti_ptr

)

Get the status of EXTI instance.

Parameters

[in]

exti_ptr

a pointer to structure vsf_exti_t

Returns

vsf_exti_status_t: all status of current EXTI

vsf_exti_capability()

vsf_exti_capability_t vsf_exti_capability

(

vsf_exti_t *

exti_ptr

)

Get the capability of exti instance.

Parameters

[in]

exti_ptr

pointer to the structure vsf_exti_t, refer to vsf_exti_t

Returns

vsf_exti_capability_t: all capabilities of current EXTI vsf_exti_capability_t

vsf_exti_trigger()

vsf_err_t vsf_exti_trigger	(	vsf_exti_t *	exti_ptr,
		vsf_exti_channel_mask_t	channel_mask
	)

Trigger EXTI channels.

Parameters

[in]	exti_ptr	a pointer to structure vsf_exti_t
[in]	channel_mask	channel mask, each channel corresponds to one bit, the value of this bit 1 means the configuration will be applied to the corresponding channel

Returns

vsf_err_t: VSF_ERR_NONE if required channels Triggered, or a negative error code

vsf_exti_irq_enable()

vsf_err_t vsf_exti_irq_enable	(	vsf_exti_t *	exti_ptr,
		vsf_exti_channel_mask_t	channel_mask
	)

Enable interrupt of one or more channels.

Parameters

[in]	exti_ptr	a pointer to structure vsf_exti_t
[in]	channel_mask	channel mask, each channel corresponds to one bit, 1 means the corresponding channel needs to be enabled, 0 means the corresponding channel does not need to be enabled

Returns

vsf_err_t: VSF_ERR_NONE if successful, or a negative error code

Note

For some devices, the interrupt priority may be shared between channels on the exti.

All pending interrupts should be cleared before interrupts are enabled.

vsf_exti_irq_disable()

vsf_err_t vsf_exti_irq_disable	(	vsf_exti_t *	exti_ptr,
		vsf_exti_channel_mask_t	channel_mask
	)

Disable interrupt of one or more channels.

Parameters

[in]	exti_ptr	a pointer to structure vsf_exti_t
[in]	channel_mask	channel mask, each channel corresponds to one bit, 1 means the corresponding channel needs to be disabled, 0 means the corresponding channel does not need to be disabled

Returns

vsf_err_t: VSF_ERR_NONE if successful, or a negative error code

Note

For some devices, the interrupt settings may be shared between channels on the exti.