+++ /dev/null
-/*
- * Copyright (c) 2005-2006 Arch Rock Corporation
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - 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.
- * - Neither the name of the Arch Rock Corporation 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
- * ARCHED ROCK OR ITS 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
- */
-
-/**
- * @author Jonathan Hui <jhui@archrock.com>
- * @author Urs Hunkeler (ReadRssi implementation)
- * @version $Revision$ $Date$
- */
-
-#include "Timer.h"
-
-module CC2420ControlP {
-
- provides interface Init;
- provides interface Resource;
- provides interface CC2420Config;
- provides interface CC2420Power;
- provides interface Read<uint16_t> as ReadRssi;
-
- uses interface Alarm<T32khz,uint32_t> as StartupTimer;
- uses interface GeneralIO as CSN;
- uses interface GeneralIO as RSTN;
- uses interface GeneralIO as VREN;
- uses interface GpioInterrupt as InterruptCCA;
-
- uses interface CC2420Ram as PANID;
- uses interface CC2420Register as FSCTRL;
- uses interface CC2420Register as IOCFG0;
- uses interface CC2420Register as IOCFG1;
- uses interface CC2420Register as MDMCTRL0;
- uses interface CC2420Register as MDMCTRL1;
- uses interface CC2420Register as RXCTRL1;
- uses interface CC2420Register as RSSI;
- uses interface CC2420Strobe as SRXON;
- uses interface CC2420Strobe as SRFOFF;
- uses interface CC2420Strobe as SXOSCOFF;
- uses interface CC2420Strobe as SXOSCON;
- uses interface AMPacket;
-
- uses interface Resource as SpiResource;
- uses interface Resource as RssiResource;
- uses interface Resource as SyncResource;
-
- uses interface Leds;
-
-}
-
-implementation {
-
- typedef enum {
- S_VREG_STOPPED,
- S_VREG_STARTING,
- S_VREG_STARTED,
- S_XOSC_STARTING,
- S_XOSC_STARTED,
- } cc2420_control_state_t;
-
- uint8_t m_channel = CC2420_DEF_CHANNEL;
-
- uint8_t m_tx_power = CC2420_DEF_RFPOWER;
-
- uint16_t m_pan = TOS_AM_GROUP;
-
- uint16_t m_short_addr;
-
- bool m_sync_busy;
-
- norace cc2420_control_state_t m_state = S_VREG_STOPPED;
-
- /***************** Prototypes ****************/
- task void syncDone_task();
-
- /***************** Init Commands ****************/
- command error_t Init.init() {
- call CSN.makeOutput();
- call RSTN.makeOutput();
- call VREN.makeOutput();
- m_short_addr = call AMPacket.address();
- return SUCCESS;
- }
-
- /***************** Resource Commands ****************/
- async command error_t Resource.immediateRequest() {
- error_t error = call SpiResource.immediateRequest();
- if ( error == SUCCESS ) {
- call CSN.clr();
- }
- return error;
- }
-
- async command error_t Resource.request() {
- return call SpiResource.request();
- }
-
- async command uint8_t Resource.isOwner() {
- return call SpiResource.isOwner();
- }
-
- async command error_t Resource.release() {
- atomic {
- call CSN.set();
- return call SpiResource.release();
- }
- }
-
- /***************** CC2420Power Commands ****************/
- async command error_t CC2420Power.startVReg() {
- atomic {
- if ( m_state != S_VREG_STOPPED ) {
- return FAIL;
- }
- m_state = S_VREG_STARTING;
- }
- call VREN.set();
- call StartupTimer.start( CC2420_TIME_VREN );
- return SUCCESS;
- }
-
- async command error_t CC2420Power.stopVReg() {
- m_state = S_VREG_STOPPED;
- call RSTN.clr();
- call VREN.clr();
- call RSTN.set();
- return SUCCESS;
- }
-
- async command error_t CC2420Power.startOscillator() {
- atomic {
- if ( m_state != S_VREG_STARTED ) {
- return FAIL;
- }
-
- m_state = S_XOSC_STARTING;
- call IOCFG1.write( CC2420_SFDMUX_XOSC16M_STABLE <<
- CC2420_IOCFG1_CCAMUX );
-
- call InterruptCCA.enableRisingEdge();
- call SXOSCON.strobe();
-
- call IOCFG0.write( ( 1 << CC2420_IOCFG0_FIFOP_POLARITY ) |
- ( 127 << CC2420_IOCFG0_FIFOP_THR ) );
-
- call FSCTRL.write( ( 1 << CC2420_FSCTRL_LOCK_THR ) |
- ( ( (m_channel - 11)*5+357 )
- << CC2420_FSCTRL_FREQ ) );
-
- call MDMCTRL0.write( ( 1 << CC2420_MDMCTRL0_RESERVED_FRAME_MODE ) |
- ( 1 << CC2420_MDMCTRL0_ADR_DECODE ) |
- ( 2 << CC2420_MDMCTRL0_CCA_HYST ) |
- ( 3 << CC2420_MDMCTRL0_CCA_MOD ) |
- ( 1 << CC2420_MDMCTRL0_AUTOCRC ) |
-#if defined(CC2420_HW_ACKNOWLEDGEMENTS) && !defined(CC2420_NO_ACKNOWLEDGEMENTS)
- ( 1 << CC2420_MDMCTRL0_AUTOACK ) |
-#else
- ( 0 << CC2420_MDMCTRL0_AUTOACK ) |
-#endif
- ( 2 << CC2420_MDMCTRL0_PREAMBLE_LENGTH ) );
-
- call RXCTRL1.write( ( 1 << CC2420_RXCTRL1_RXBPF_LOCUR ) |
- ( 1 << CC2420_RXCTRL1_LOW_LOWGAIN ) |
- ( 1 << CC2420_RXCTRL1_HIGH_HGM ) |
- ( 1 << CC2420_RXCTRL1_LNA_CAP_ARRAY ) |
- ( 1 << CC2420_RXCTRL1_RXMIX_TAIL ) |
- ( 1 << CC2420_RXCTRL1_RXMIX_VCM ) |
- ( 2 << CC2420_RXCTRL1_RXMIX_CURRENT ) );
- }
- return SUCCESS;
- }
-
-
- async command error_t CC2420Power.stopOscillator() {
- atomic {
- if ( m_state != S_XOSC_STARTED ) {
- return FAIL;
- }
- m_state = S_VREG_STARTED;
- call SXOSCOFF.strobe();
- }
- return SUCCESS;
- }
-
- async command error_t CC2420Power.rxOn() {
- atomic {
- if ( m_state != S_XOSC_STARTED ) {
- return FAIL;
- }
- call SRXON.strobe();
- }
- return SUCCESS;
- }
-
- async command error_t CC2420Power.rfOff() {
- atomic {
- if ( m_state != S_XOSC_STARTED ) {
- return FAIL;
- }
- call SRFOFF.strobe();
- }
- return SUCCESS;
- }
-
-
- /***************** CC2420Config Commands ****************/
- command uint8_t CC2420Config.getChannel() {
- atomic return m_channel;
- }
-
- command void CC2420Config.setChannel( uint8_t channel ) {
- atomic m_channel = channel;
- }
-
- command uint16_t CC2420Config.getShortAddr() {
- atomic return m_short_addr;
- }
-
- command void CC2420Config.setShortAddr( uint16_t addr ) {
- atomic m_short_addr = addr;
- }
-
- command uint16_t CC2420Config.getPanAddr() {
- return m_pan;
- }
-
- command void CC2420Config.setPanAddr( uint16_t pan ) {
- atomic m_pan = pan;
- }
-
- command error_t CC2420Config.sync() {
- atomic {
- if ( m_sync_busy ) {
- return FAIL;
- }
-
- m_sync_busy = TRUE;
- if ( m_state == S_XOSC_STARTED ) {
- call SyncResource.request();
- } else {
- post syncDone_task();
- }
- }
- return SUCCESS;
- }
-
- /***************** ReadRssi Commands ****************/
- command error_t ReadRssi.read() {
- return call RssiResource.request();
- }
-
- /***************** Spi Resources Events ****************/
- event void SyncResource.granted() {
-
- nxle_uint16_t id[ 2 ];
- uint8_t channel;
-
- atomic {
- channel = m_channel;
- id[ 0 ] = m_pan;
- id[ 1 ] = m_short_addr;
- }
-
- call CSN.clr();
- call SRFOFF.strobe();
- call FSCTRL.write( ( 1 << CC2420_FSCTRL_LOCK_THR ) |
- ( ( (channel - 11)*5+357 ) << CC2420_FSCTRL_FREQ ) );
- call PANID.write( 0, (uint8_t*)id, sizeof( id ) );
- call CSN.set();
- call CSN.clr();
- call SRXON.strobe();
- call CSN.set();
- call SyncResource.release();
-
- post syncDone_task();
-
- }
-
- event void SpiResource.granted() {
- call CSN.clr();
- signal Resource.granted();
- }
-
- event void RssiResource.granted() {
- uint16_t data;
- call CSN.clr();
- call RSSI.read(&data);
- call CSN.set();
-
- call RssiResource.release();
- data += 0x7f;
- data &= 0x00ff;
- signal ReadRssi.readDone(SUCCESS, data);
- }
-
- /***************** StartupTimer Events ****************/
- async event void StartupTimer.fired() {
- if ( m_state == S_VREG_STARTING ) {
- m_state = S_VREG_STARTED;
- call RSTN.clr();
- call RSTN.set();
- signal CC2420Power.startVRegDone();
- }
- }
-
- /***************** InterruptCCA Events ****************/
- async event void InterruptCCA.fired() {
- nxle_uint16_t id[ 2 ];
- m_state = S_XOSC_STARTED;
- id[ 0 ] = m_pan;
- id[ 1 ] = m_short_addr;
- call InterruptCCA.disable();
- call IOCFG1.write( 0 );
- call PANID.write( 0, (uint8_t*)&id, 4 );
- call CSN.set();
- call CSN.clr();
- signal CC2420Power.startOscillatorDone();
- }
-
- /***************** Tasks ****************/
- task void syncDone_task() {
- atomic m_sync_busy = FALSE;
- signal CC2420Config.syncDone( SUCCESS );
- }
-
- /***************** Defaults ****************/
- default event void CC2420Config.syncDone( error_t error ) {
- }
-
- default event void ReadRssi.readDone(error_t error, uint16_t data) {
- }
-
-}
projects / tinyos-2.x.git / blobdiff