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/**
* \file
*
* \brief SAM Serial Peripheral Interface Driver
*
* Copyright (C) 2012-2015 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>
*/
#ifndef SERCOM_H_INCLUDED
#define SERCOM_H_INCLUDED
#include <compiler.h>
#include <system.h>
#include <clock.h>
#include <system_interrupt.h>
#include "sercom_pinout.h"
#ifdef __cplusplus
extern "C" {
#endif
/* SERCOM modules should share same slow GCLK channel ID */
#define SERCOM_GCLK_ID SERCOM0_GCLK_ID_SLOW
#if (0x1ff >= REV_SERCOM)
# define FEATURE_SERCOM_SYNCBUSY_SCHEME_VERSION_1
#elif (0x400 >= REV_SERCOM)
# define FEATURE_SERCOM_SYNCBUSY_SCHEME_VERSION_2
#else
# error "Unknown SYNCBUSY scheme for this SERCOM revision"
#endif
/**
* \brief sercom asynchronous operation mode
*
* Select sercom asynchronous operation mode
*/
enum sercom_asynchronous_operation_mode {
SERCOM_ASYNC_OPERATION_MODE_ARITHMETIC = 0,
SERCOM_ASYNC_OPERATION_MODE_FRACTIONAL,
};
/**
* \brief sercom asynchronous samples per bit
*
* Select number of samples per bit
*/
enum sercom_asynchronous_sample_num {
SERCOM_ASYNC_SAMPLE_NUM_3 = 3,
SERCOM_ASYNC_SAMPLE_NUM_8 = 8,
SERCOM_ASYNC_SAMPLE_NUM_16 = 16,
};
enum status_code sercom_set_gclk_generator(
const enum gclk_generator generator_source,
const bool force_change);
enum status_code _sercom_get_sync_baud_val(
const uint32_t baudrate,
const uint32_t external_clock,
uint16_t *const baudval);
enum status_code _sercom_get_async_baud_val(
const uint32_t baudrate,
const uint32_t peripheral_clock,
uint16_t *const baudval,
enum sercom_asynchronous_operation_mode mode,
enum sercom_asynchronous_sample_num sample_num);
uint32_t _sercom_get_default_pad(
Sercom *const sercom_module,
const uint8_t pad);
uint8_t _sercom_get_sercom_inst_index(
Sercom *const sercom_instance);
#ifdef __cplusplus
}
#endif
#endif //__SERCOM_H_INCLUDED
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