+++ /dev/null
-/*
- * Copyright (c) 2009 Communication Group and Eislab at
- * Lulea University of Technology
- *
- * Contact: Laurynas Riliskis, LTU
- * Mail: laurynas.riliskis@ltu.se
- * 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 Communication Group at Lulea University of Technology
- * 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 STANFORD
- * UNIVERSITY 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.
- */
-
-/*
- * Copyright (c) 2006 Stanford University.
- * 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 Stanford University 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 STANFORD
- * UNIVERSITY 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 Philip Levis
- */
-
-/**
- * The configuration that takes the underlying software I2C on Mulle
- * and turns it into a shared abstraction.
- *
- * @author Henrik Makitaavola <henrik.makitaavola@gmail.com>
- */
-#include "I2C.h"
-generic module SoftI2CMasterImplP()
-{
- provides interface Resource[uint8_t client];
- provides interface I2CPacket<TI2CBasicAddr>[uint8_t client];
- uses interface Resource as SubResource[uint8_t];
- uses interface I2CPacket<TI2CBasicAddr> as SubPacket;
-}
-implementation
-{
- enum
- {
- NO_CLIENT = 0xff
- };
-
- uint8_t currentClient = NO_CLIENT;
-
- async command error_t Resource.request[uint8_t id]()
- {
- return call SubResource.request[id]();
- }
-
- async command error_t Resource.immediateRequest[uint8_t id]()
- {
- error_t rval = call SubResource.immediateRequest[id]();
- if (rval == SUCCESS)
- {
- atomic currentClient = id;
- }
- return rval;
- }
-
- event void SubResource.granted[uint8_t id]()
- {
- atomic currentClient = id;
- signal Resource.granted[id]();
- }
-
- async command error_t Resource.release[uint8_t id]()
- {
- return call SubResource.release[id]();
- }
-
- async command bool Resource.isOwner[uint8_t id]()
- {
- return call SubResource.isOwner[id]();
- }
-
- async command error_t I2CPacket.write[uint8_t id](i2c_flags_t flags,
- uint16_t addr,
- uint8_t len,
- uint8_t* data)
- {
- atomic
- {
- if (currentClient != id)
- {
- return FAIL;
- }
- }
- return call SubPacket.write(flags, addr, len, data);
- }
-
- async command error_t I2CPacket.read[uint8_t id](i2c_flags_t flags,
- uint16_t addr,
- uint8_t len,
- uint8_t* data)
- {
- atomic
- {
- if (currentClient != id)
- {
- return FAIL;
- }
- }
- return call SubPacket.read(flags, addr, len, data);
- }
-
- default event void Resource.granted[uint8_t id]() {}
-
- async event void SubPacket.readDone(
- error_t error, uint16_t addr, uint8_t length, uint8_t* data)
- {
- signal I2CPacket.readDone[currentClient](error, addr, length, data);
- }
-
- async event void SubPacket.writeDone(
- error_t error, uint16_t addr, uint8_t length, uint8_t* data)
- {
- signal I2CPacket.writeDone[currentClient]( error, addr, length, data);
- }
-
- default async event void I2CPacket.readDone[uint8_t id](
- error_t error, uint16_t addr, uint8_t length, uint8_t* data) { }
-
- default async event void I2CPacket.writeDone[uint8_t id](
- error_t error, uint16_t addr, uint8_t length, uint8_t* data) { }
-
-}
projects / tinyos-2.x.git / blobdiff