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/**
* \file
*
* \brief TWI Master driver for SAM.
*
* Copyright (c) 2011-2016 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 _TWI_MASTER_H_
#define _TWI_MASTER_H_
#include "twi.h"
#include "sysclk.h"
typedef Twi *twi_master_t;
typedef twi_options_t twi_master_options_t;
typedef twi_packet_t twi_package_t;
static inline uint32_t twi_master_setup(twi_master_t p_twi,
twi_master_options_t *p_opt)
{
p_opt->master_clk = sysclk_get_peripheral_hz();
p_opt->smbus = 0;
#if SAMG55
if (p_twi == TWI0) {
sysclk_enable_peripheral_clock(ID_FLEXCOM0);
} else if (p_twi == TWI1) {
sysclk_enable_peripheral_clock(ID_FLEXCOM1);
} else if (p_twi == TWI2) {
sysclk_enable_peripheral_clock(ID_FLEXCOM2);
} else if (p_twi == TWI3) {
sysclk_enable_peripheral_clock(ID_FLEXCOM3);
} else if (p_twi == TWI4) {
sysclk_enable_peripheral_clock(ID_FLEXCOM4);
} else if (p_twi == TWI5) {
sysclk_enable_peripheral_clock(ID_FLEXCOM5);
} else if (p_twi == TWI6) {
sysclk_enable_peripheral_clock(ID_FLEXCOM6);
#ifdef _SAMG55_FLEXCOM7_INSTANCE_
} else if (p_twi == TWI7) {
sysclk_enable_peripheral_clock(ID_FLEXCOM7);
#endif /* _SAMG55_FLEXCOM7_INSTANCE_*/
} else {
// Do Nothing
}
#else
#if (!(SAMG51 || SAMG53 || SAMG54))
if (p_twi == TWI0) {
sysclk_enable_peripheral_clock(ID_TWI0);
} else
#endif
if (p_twi == TWI1) {
sysclk_enable_peripheral_clock(ID_TWI1);
#if (SAM4N || SAMG)
} else if (p_twi == TWI2) {
sysclk_enable_peripheral_clock(ID_TWI2);
#endif
} else {
// Do Nothing
}
#endif
return (twi_master_init(p_twi, p_opt));
}
#define twi_master_enable(p_twi) twi_enable_master_mode(p_twi)
#define twi_master_disable(p_twi) twi_disable_master_mode(p_twi)
#endif // _TWI_MASTER_H_
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