105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*
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* Copyright (c) 2014-2016 IBM Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the <organization> nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _hal_hpp_
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#define _hal_hpp_
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#include "oslmic.h"
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/*
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* initialize hardware (IO, SPI, TIMER, IRQ).
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*/
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void hal_init (void);
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/*
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* drive radio NSS pin (0=low, 1=high).
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*/
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void hal_pin_nss (u1_t val);
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/*
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* drive radio RX/TX pins (0=rx, 1=tx).
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*/
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void hal_pin_rxtx (u1_t val);
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/*
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* control radio RST pin (0=low, 1=high, 2=floating)
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*/
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void hal_pin_rst (u1_t val);
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/*
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* perform 8-bit SPI transaction with radio.
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* - write given byte 'outval'
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* - read byte and return value
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*/
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u1_t hal_spi (u1_t outval);
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/*
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* disable all CPU interrupts.
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* - might be invoked nested
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* - will be followed by matching call to hal_enableIRQs()
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*/
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void hal_disableIRQs (void);
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/*
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* enable CPU interrupts.
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*/
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void hal_enableIRQs (void);
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/*
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* put system and CPU in low-power mode, sleep until interrupt.
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*/
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void hal_sleep (void);
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/*
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* return 32-bit system time in ticks.
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*/
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u4_t hal_ticks (void);
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/*
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* busy-wait until specified timestamp (in ticks) is reached.
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*/
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void hal_waitUntil (u4_t time);
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/*
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* check and rewind timer for target time.
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* - return 1 if target time is close
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* - otherwise rewind timer for target time or full period and return 0
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*/
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u1_t hal_checkTimer (u4_t targettime);
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/*
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* perform fatal failure action.
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* - called by assertions
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* - action could be HALT or reboot
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*/
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void hal_failed (void);
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void LmicTimer_IRQHandler ();
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#endif // _hal_hpp_
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