tc_interrupt.c File Reference

SAM TC - Timer Counter Callback Driver.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include "tc_interrupt.h"

Macros
#define	_TC_INTERRUPT_HANDLER(n, m)

Functions
void	_tc_interrupt_handler (uint8_t instance)
enum status_code	tc_register_callback (struct tc_module *const module, tc_callback_t callback_func, const enum tc_callback callback_type)
	Registers a callback. More...
enum status_code	tc_unregister_callback (struct tc_module *const module, const enum tc_callback callback_type)
	Unregisters a callback. More...

Variables
void *	_tc_instances [TC_INST_NUM]

#define _TC_INTERRUPT_HANDLER	(		n,
			m
	)

Value:

void TC##n##_Handler(void) \
        { \
			_tc_interrupt_handler(m); \
        }

ISR handler for TC

Auto-generate a set of interrupt handlers for each TC in the device.

void _tc_interrupt_handler

(

uint8_t

instance

)

Interrupt Handler for TC module

Handles interrupts as they occur, it will run the callback functions that are registered and enabled.

Parameters

[in]

instance

ID of the TC instance calling the interrupt handler

References _tc_instances, TC_CALLBACK_CC_CHANNEL0, TC_CALLBACK_CC_CHANNEL1, TC_CALLBACK_ERROR, and TC_CALLBACK_OVERFLOW.

enum status_code tc_register_callback	(	struct tc_module *const	module,
		tc_callback_t	callback_func,
		const enum tc_callback	callback_type
	)

Registers a callback.

Registers a callback function which is implemented by the user.

Note

The callback must be enabled by tc_enable_callback, in order for the interrupt handler to call it when the conditions for the callback type is met.

Parameters

[in]	module	Pointer to TC software instance struct
[in]	callback_func	Pointer to callback function
[in]	callback_type	Callback type given by an enum

References Assert, STATUS_OK, TC_CALLBACK_CC_CHANNEL0, and TC_CALLBACK_CC_CHANNEL1.

enum status_code tc_unregister_callback	(	struct tc_module *const	module,
		const enum tc_callback	callback_type
	)

Unregisters a callback.

Unregisters a callback function implemented by the user. The callback should be disabled before it is unregistered.

Parameters

[in]	module	Pointer to TC software instance struct
[in]	callback_type	Callback type given by an enum

References Assert, NULL, STATUS_OK, TC_CALLBACK_CC_CHANNEL0, and TC_CALLBACK_CC_CHANNEL1.

void* _tc_instances[TC_INST_NUM]

Referenced by _tc_interrupt_handler(), and tc_init().