40f49948e6
This commit adds cpu, platform and example files, providing support for running Contiki on TI's cc2538 DK
177 lines
6.2 KiB
C
177 lines
6.2 KiB
C
/*
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* Copyright (c) 2012, Texas Instruments Incorporated - http://www.ti.com/
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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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* This file is part of the Contiki operating system.
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*/
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/**
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* \addtogroup cc2538
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* @{
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*
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* \defgroup cc2538-rf cc2538 RF Driver
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*
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* Driver implementation for the cc2538 RF transceiver
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* @{
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*
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* \file
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* Header file for the cc2538 RF driver
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*/
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#ifndef CC2538_RF_H__
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#define CC2538_RF_H__
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#include "contiki.h"
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#include "dev/radio.h"
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#include "dev/rfcore.h"
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#include "reg.h"
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/*---------------------------------------------------------------------------
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* RF Config
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*---------------------------------------------------------------------------*/
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/* Constants */
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#define CC2538_RF_CCA_THRES_USER_GUIDE 0xF8
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#define CC2538_RF_TX_POWER_RECOMMENDED 0xD5 /* ToDo: Determine value */
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#define CC2538_RF_CHANNEL_MIN 11
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#define CC2538_RF_CHANNEL_MAX 26
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#define CC2538_RF_CHANNEL_SPACING 5
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#define CC2538_RF_MAX_PACKET_LEN 127
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#define CC2538_RF_MIN_PACKET_LEN 4
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#define CC2538_RF_CCA_CLEAR 1
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#define CC2538_RF_CCA_BUSY 0
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/*---------------------------------------------------------------------------*/
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#ifdef CC2538_RF_CONF_TX_POWER
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#define CC2538_RF_TX_POWER CC2538_RF_CONF_TX_POWER
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#else
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#define CC2538_RF_TX_POWER CC2538_RF_TX_POWER_RECOMMENDED
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#endif /* CC2538_RF_CONF_TX_POWER */
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#ifdef CC2538_RF_CONF_CCA_THRES
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#define CC2538_RF_CCA_THRES CC2538_RF_CONF_CCA_THRES
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#else
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#define CC2538_RF_CCA_THRES CCA_THRES_USER_GUIDE /** User guide recommendation */
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#endif /* CC2538_RF_CONF_CCA_THRES */
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#ifdef CC2538_RF_CONF_CHANNEL
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#define CC2538_RF_CHANNEL CC2538_RF_CONF_CHANNEL
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#else
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#define CC2538_RF_CHANNEL 18
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#endif /* CC2538_RF_CONF_CHANNEL */
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#ifdef CC2538_RF_CONF_AUTOACK
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#define CC2538_RF_AUTOACK CC2538_RF_CONF_AUTOACK
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#else
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#define CC2538_RF_AUTOACK 1
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#endif /* CC2538_RF_CONF_AUTOACK */
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/*---------------------------------------------------------------------------
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* Command Strobe Processor
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*---------------------------------------------------------------------------*/
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/* OPCODES */
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#define CC2538_RF_CSP_OP_ISRXON 0xE3
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#define CC2538_RF_CSP_OP_ISTXON 0xE9
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#define CC2538_RF_CSP_OP_ISTXONCCA 0xEA
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#define CC2538_RF_CSP_OP_ISRFOFF 0xEF
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#define CC2538_RF_CSP_OP_ISFLUSHRX 0xED
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#define CC2538_RF_CSP_OP_ISFLUSHTX 0xEE
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/**
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* \brief Send an RX ON command strobe to the CSP
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*/
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#define CC2538_RF_CSP_ISRXON() \
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do { REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISRXON; } while(0)
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/**
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* \brief Send a TX ON command strobe to the CSP
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*/
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#define CC2538_RF_CSP_ISTXON() \
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do { REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISTXON; } while(0)
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/**
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* \brief Send a RF OFF command strobe to the CSP
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*/
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#define CC2538_RF_CSP_ISRFOFF() \
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do { REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISRFOFF; } while(0)
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/**
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* \brief Flush the RX FIFO
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*/
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#define CC2538_RF_CSP_ISFLUSHRX() do { \
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REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISFLUSHRX; \
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REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISFLUSHRX; \
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} while(0)
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/**
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* \brief Flush the TX FIFO
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*/
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#define CC2538_RF_CSP_ISFLUSHTX() do { \
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REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISFLUSHTX; \
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REG(RFCORE_SFR_RFST) = CC2538_RF_CSP_OP_ISFLUSHTX; \
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} while(0)
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/*---------------------------------------------------------------------------*/
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/** The NETSTACK data structure for the cc2538 RF driver */
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extern const struct radio_driver cc2538_rf_driver;
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Set the current operating channel
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* \param channel The desired channel as a value in [11,26]
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* \return Returns a value in [11,26] representing the current channel
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* or a negative value if \e channel was out of bounds
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*/
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int8_t cc2538_rf_channel_set(uint8_t channel);
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/**
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* \brief Get the current operating channel
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* \return Returns a value in [11,26] representing the current channel
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*/
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uint8_t cc2538_rf_channel_get();
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/**
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* \brief Sets RF TX power
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* \param new_power The desired power level
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* \return The power level in use after the adjustment
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*
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* The value specified in \e new_power will be written directly to the
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* RFCORE_XREG_TXPOWER register. See the datasheet for more details on
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* possible values.
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*/
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uint8_t cc2538_rf_power_set(uint8_t new_power);
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/**
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* \brief Sets addresses and PAN identifier to the relevant RF hardware
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* registers
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* \param pan The PAN Identifier
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*
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* Values for short and extended addresses are not needed as parameters
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* since they exist in the rimeaddr buffer in the contiki core. They
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* are thus simply copied over from there.
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*/
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void cc2538_rf_set_addr(uint16_t pan);
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/*---------------------------------------------------------------------------*/
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#endif /* CC2538_RF_H__ */
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/**
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* @}
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* @}
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*/
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