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/**
* \file
*
* \brief SAM Brown Out Detector Driver
*
* Copyright (C) 2014-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
*/
#include "bod.h"
/**
* \brief Configure a Brown Out Detector module.
*
* Configures a given BOD module with the settings stored in the given
* configuration structure.
*
* \param[in] conf Configuration settings to use for the specified BOD33
*
* \retval STATUS_OK Operation completed successfully
* \retval STATUS_ERR_INVALID_ARG An invalid BOD was supplied
* \retval STATUS_ERR_INVALID_OPTION The requested BOD level was outside the acceptable range
*/
enum status_code bod33_set_config(
struct bod33_config *const conf)
{
/* Sanity check arguments */
Assert(conf);
uint32_t temp = 0;
/* Check if module is enabled. */
if (SUPC->BOD33.reg & SUPC_BOD33_ENABLE) {
SUPC->BOD33.reg &= ~SUPC_BOD33_ENABLE;
}
/* Convert BOD prescaler, trigger action and mode to a bitmask */
temp |= (uint32_t)conf->prescaler | (uint32_t)conf->action | (uint32_t)conf->monitor |
(uint32_t)conf->mode_in_active | (uint32_t)conf->mode_in_standby;
if (conf->hysteresis == true) {
temp |= SUPC_BOD33_HYST;
}
if (conf->run_in_standby == true) {
temp |= SUPC_BOD33_RUNSTDBY;
}
if (conf->run_in_backup == true) {
temp |= SUPC_BOD33_RUNBKUP;
}
if (conf->level > 0x3F || conf->backuplevel > 0x3F) {
return STATUS_ERR_INVALID_ARG;
}
SUPC->BOD33.reg = SUPC_BOD33_LEVEL(conf->level) |
SUPC_BOD33_BKUPLEVEL(conf->backuplevel) | temp;
return STATUS_OK;
}
/**
* \brief Configure a Brown Out Detector module.
*
* Configures a given BOD module with the settings stored in the given
* configuration structure.
*
* \param[in] conf Configuration settings to use for the specified BOD12
*
* \retval STATUS_OK Operation completed successfully
* \retval STATUS_ERR_INVALID_ARG An invalid BOD was supplied
* \retval STATUS_ERR_INVALID_OPTION The requested BOD level was outside the acceptable range
*/
enum status_code bod12_set_config(
struct bod12_config *const conf)
{
/* Sanity check arguments */
Assert(conf);
uint32_t temp = 0;
/* Check if module is enabled. */
if (SUPC->BOD12.reg & SUPC_BOD12_ENABLE) {
SUPC->BOD12.reg &= ~SUPC_BOD12_ENABLE;
}
/* Convert BOD prescaler, trigger action and mode to a bitmask */
temp |= (uint32_t)conf->prescaler | (uint32_t)conf->action |
(uint32_t)conf->mode_in_active | (uint32_t)conf->mode_in_standby;
if (conf->hysteresis == true) {
temp |= SUPC_BOD12_HYST;
}
if (conf->run_in_standby == true) {
temp |= SUPC_BOD12_RUNSTDBY;
}
if (conf->level > 0x3F) {
return STATUS_ERR_INVALID_ARG;
}
SUPC->BOD12.reg = SUPC_BOD12_LEVEL(conf->level) | temp;
return STATUS_OK;
}
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