/**
* \file
*
* \brief SAM TC - Timer Counter Callback Driver
*
* Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.
*
* \asf_license_start
*
* \page License
*
* Subject to your compliance with these terms, you may use Microchip
* software and any derivatives exclusively with Microchip products.
* It is your responsibility to comply with third party license terms applicable
* to your use of third party software (including open source software) that
* may accompany Microchip software.
*
* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit Microchip Support
*/
#ifndef TC_INTERRUPT_H_INCLUDED
#define TC_INTERRUPT_H_INCLUDED
#include "tc.h"
#include
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(__DOXYGEN__)
extern void *_tc_instances[TC_INST_NUM];
# define _TC_INTERRUPT_VECT_NUM(n, unused) \
SYSTEM_INTERRUPT_MODULE_TC##n,
/**
* \internal Get the interrupt vector for the given device instance
*
* \param[in] TC module instance number
*
* \return Interrupt vector for of the given TC module instance.
*/
static enum system_interrupt_vector _tc_interrupt_get_interrupt_vector(
uint32_t inst_num)
{
static uint8_t tc_interrupt_vectors[TC_INST_NUM] =
{
#if (SAML21E) || (SAML21G) || (SAMR30E) || (SAMR30G)
SYSTEM_INTERRUPT_MODULE_TC0,
SYSTEM_INTERRUPT_MODULE_TC1,
SYSTEM_INTERRUPT_MODULE_TC4
#else
MRECURSION(TC_INST_NUM, _TC_INTERRUPT_VECT_NUM, TC_INST_MAX_ID)
#endif
};
return (enum system_interrupt_vector)tc_interrupt_vectors[inst_num];
}
#endif /* !defined(__DOXYGEN__) */
/**
* \name Callback Management
* {@
*/
enum status_code tc_register_callback(
struct tc_module *const module,
tc_callback_t callback_func,
const enum tc_callback callback_type);
enum status_code tc_unregister_callback(
struct tc_module *const module,
const enum tc_callback callback_type);
/**
* \brief Enables callback.
*
* Enables the callback function registered by the \ref
* tc_register_callback. The callback function will be called from the
* interrupt handler when the conditions for the callback type are
* met. This function will also enable the appropriate interrupts.
*
* \param[in] module Pointer to TC software instance struct
* \param[in] callback_type Callback type given by an enum
*/
static inline void tc_enable_callback(
struct tc_module *const module,
const enum tc_callback callback_type)
{
/* Sanity check arguments */
Assert(module);
/* Enable interrupts for this TC module */
system_interrupt_enable(_tc_interrupt_get_interrupt_vector(_tc_get_inst_index(module->hw)));
/* Enable callback */
if (callback_type == TC_CALLBACK_CC_CHANNEL0) {
module->enable_callback_mask |= TC_INTFLAG_MC(1);
module->hw->COUNT8.INTENSET.reg = TC_INTFLAG_MC(1);
}
else if (callback_type == TC_CALLBACK_CC_CHANNEL1) {
module->enable_callback_mask |= TC_INTFLAG_MC(2);
module->hw->COUNT8.INTENSET.reg = TC_INTFLAG_MC(2);
}
else {
module->enable_callback_mask |= (1 << callback_type);
module->hw->COUNT8.INTENSET.reg = (1 << callback_type);
}
}
/**
* \brief Disables callback.
*
* Disables the callback function registered by the \ref
* tc_register_callback, and the callback will not be called from the
* interrupt routine. The function will also disable the appropriate
* interrupts.
*
* \param[in] module Pointer to TC software instance struct
* \param[in] callback_type Callback type given by an enum
*/
static inline void tc_disable_callback(
struct tc_module *const module,
const enum tc_callback callback_type){
/* Sanity check arguments */
Assert(module);
/* Disable callback */
if (callback_type == TC_CALLBACK_CC_CHANNEL0) {
module->hw->COUNT8.INTENCLR.reg = TC_INTFLAG_MC(1);
module->enable_callback_mask &= ~TC_INTFLAG_MC(1);
}
else if (callback_type == TC_CALLBACK_CC_CHANNEL1) {
module->hw->COUNT8.INTENCLR.reg = TC_INTFLAG_MC(2);
module->enable_callback_mask &= ~TC_INTFLAG_MC(2);
}
else {
module->hw->COUNT8.INTENCLR.reg = (1 << callback_type);
module->enable_callback_mask &= ~(1 << callback_type);
}
}
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* TC_INTERRUPT_H_INCLUDED */