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/*
ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file SAMA5D2x/sama_pmc.h
* @brief PMC helper driver header.
*
* @addtogroup SAMA5D2x_PMC
* @{
*/
#ifndef _SAMA_PMC_
#define _SAMA_PMC_
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver pre-compile time settings. */
/*===========================================================================*/
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver macros. */
/*===========================================================================*/
/**
* @name Generic PMC operations
* @{
*/
/**
* @brief Enable write protection on PMC registers block.
*
* @notapi
*/
#define pmcEnableWP() { \
PMC->PMC_WPMR = PMC_WPMR_WPKEY_PASSWD | PMC_WPMR_WPEN; \
}
/**
* @brief Disable write protection on PMC registers block.
*
* @notapi
*/
#define pmcDisableWP() { \
PMC->PMC_WPMR = PMC_WPMR_WPKEY_PASSWD; \
}
/**
* @brief Enables the clock of one or more peripheral having ID from 2 to
* 31.
*
* @param[in] mask PCER0 peripherals mask
*
* @api
*/
#define pmcEnablePidLow(mask) { \
pmcDisableWP(); \
PMC->PMC_PCER0 |= (mask); \
pmcDisableWP(); \
}
/**
* @brief Disables the clock of one or more peripheral having ID from 2 to
* 31.
*
* @param[in] mask PCDR0 peripherals mask
*
* @api
*/
#define pmcDisablePidLow(mask) { \
pmcDisableWP(); \
PMC->PMC_PCDR0 |= (mask); \
pmcDisableWP(); \
}
/**
* @brief Enables the clock of one or more peripheral having ID from 32 to
* 63.
*
* @param[in] mask PCER1 peripherals mask
*
* @api
*/
#define pmcEnablePidHigh(mask) { \
pmcDisableWP(); \
PMC->PMC_PCER1 |= (mask); \
pmcDisableWP(); \
}
/**
* @brief Disables the clock of one or more peripheral having ID from 32 to
* 63.
*
* @param[in] mask PCDR1 peripherals mask
*
* @api
*/
#define pmcDisablePidHigh(mask) { \
pmcDisableWP(); \
PMC->PMC_PCDR1 |= (mask); \
pmcDisableWP(); \
}
/** @} */
/**
* @name ADC peripherals specific PMC operations
* @{
*/
/**
* @brief Enables the PIT peripheral clock.
*
* @api
*/
#define pmcEnablePIT() pmcEnablePidLow(ID_PIT_MSK)
/**
* @brief Disables the PIT peripheral clock.
*
* @api
*/
#define pmcDisablePIT() pmcDisablePidLow(SAMA_PID_PIT)
/** @} */
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SAMA_PMC_ */
/** @} */
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