102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2015, Texas Instruments Incorporated - http://www.ti.com/
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* 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. Neither the name of the copyright holder nor the names of its
|
||
|
|
* contributors may be used to endorse or promote products derived
|
||
|
|
* from this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||
|
|
* COPYRIGHT HOLDER OR CONTRIBUTORS 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.
|
||
|
|
*/
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/**
|
||
|
|
* \addtogroup cc26xx
|
||
|
|
* @{
|
||
|
|
*
|
||
|
|
* \defgroup cc26xx-oscillators CC26XX oscillator control
|
||
|
|
*
|
||
|
|
* Wrapper around those CC26xxware OSC functions that we need in Contiki.
|
||
|
|
*
|
||
|
|
* All CC26xxware OSC control requires access to the semaphore module within
|
||
|
|
* AUX. Thus, in addition to enabling the oscillator interface, we need to
|
||
|
|
* start the clock to SMPH and restore it to its previous state when we are
|
||
|
|
* done.
|
||
|
|
* @{
|
||
|
|
*
|
||
|
|
* \file
|
||
|
|
* Header file for the CC26XX oscillator control
|
||
|
|
*/
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
#ifndef OSCILLATORS_H_
|
||
|
|
#define OSCILLATORS_H_
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/**
|
||
|
|
* \brief Set the LF clock source to be the LF XOSC
|
||
|
|
*
|
||
|
|
* This function is only called once as soon as the system starts.
|
||
|
|
*
|
||
|
|
* Do not switch the LF clock source to the RC OSC for normal system operation
|
||
|
|
* See CC26xx Errata (swrz058)
|
||
|
|
*/
|
||
|
|
void oscillators_select_lf_xosc(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Set the LF clock source to be the LF RCOSC
|
||
|
|
*
|
||
|
|
* This function is only called once, when the systen transitions to a full
|
||
|
|
* shutdown
|
||
|
|
*
|
||
|
|
* Do not switch the LF clock source to the RC OSC for normal system operation
|
||
|
|
* See CC26xx Errata (swrz058)
|
||
|
|
*/
|
||
|
|
void oscillators_select_lf_rcosc(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Requests the HF XOSC as the source for the HF clock, but does not
|
||
|
|
* perform the actual switch.
|
||
|
|
*
|
||
|
|
* This triggers the startup sequence of the HF XOSC and returns so the CPU
|
||
|
|
* can perform other tasks while the XOSC is starting.
|
||
|
|
*
|
||
|
|
* The XOSC is requested as the source for the HF as well as the MF clock.
|
||
|
|
*/
|
||
|
|
void oscillators_request_hf_xosc(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Performs the switch to the XOSC
|
||
|
|
*
|
||
|
|
* This function must be preceded by a call to oscillators_request_hf_xosc()
|
||
|
|
*/
|
||
|
|
void oscillators_switch_to_hf_xosc(void);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Switches MF and HF clock source to be the HF RC OSC
|
||
|
|
*/
|
||
|
|
void oscillators_switch_to_hf_rc(void);
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
#endif /* OSCILLATORS_H_ */
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
/**
|
||
|
|
* @}
|
||
|
|
* @}
|
||
|
|
*/
|