91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/*
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* Copyright (c) 2006, Swedish Institute of Computer Science
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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
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* are met:
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* 1. 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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* 2. 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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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)$Id: cc2420_misc.h,v 1.1 2006/08/09 17:39:39 bg- Exp $
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*/
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#ifndef CC2420_MISC_H
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#define CC2420_MISC_H
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/*
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* Miscellaneous routines that illustrates how some of the CC2420
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* registers may be accessed.
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*/
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unsigned cc2420_pa_level(u16_t);
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unsigned cc2420_get_pa_level(void);
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int cc2420_get_current_rssi(void);
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#define PA_LEVEL 0x1F
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inline
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unsigned
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cc2420_pa_level(u16_t p)
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{
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u16_t reg;
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/*
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* All PA settings can be used, the ones given in the datasheet
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* correspond to 0, -1, -3, -5, -7, -10, -15, -25 dBm in the
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* reference design.
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*/
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if (p > PA_LEVEL)
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p = PA_LEVEL;
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reg = cc2420_getreg(CC2420_TXCTRL);
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p |= reg & ~PA_LEVEL;
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cc2420_setreg(CC2420_TXCTRL, p);
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return reg & PA_LEVEL;
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}
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inline
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unsigned
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cc2420_get_pa_level(void)
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{
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u16_t reg;
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reg = cc2420_getreg(CC2420_TXCTRL);
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return reg & PA_LEVEL;
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}
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inline
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int
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cc2420_get_current_rssi(void)
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{
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u16_t reg;
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reg = cc2420_getreg(CC2420_RSSI);
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return (signed char) (reg & 0xff);
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}
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#endif /* CC2420_MISC_H */
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