--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+/**
+ * Cache an EUI 64 at initialization time and return the cached value for
+ * subsequent queries.
+ */
+module CachedIeeeEui64P {
+ uses interface LocalIeeeEui64 as SubIeeeEui64;
+ provides {
+ interface LocalIeeeEui64;
+ interface Init;
+ }
+} implementation {
+
+ ieee_eui64_t eui;
+
+ command error_t Init.init() {
+ atomic eui = call SubIeeeEui64.getId();
+ return SUCCESS;
+ }
+
+ command ieee_eui64_t LocalIeeeEui64.getId() {
+ return eui;
+ }
+}
--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+#ifndef DS2401_H
+#define DS2401_H
+
+enum {
+ DS2401_SERIAL_LENGTH = 6,
+ DS2401_DATA_LENGTH = 8
+};
+
+typedef union ds2401_serial_t {
+ uint8_t data[DS2401_DATA_LENGTH];
+ struct {
+ uint8_t family_code;
+ uint8_t serial[DS2401_SERIAL_LENGTH];
+ uint8_t crc;
+ };
+} ds2401_serial_t;
+
+#endif // DS2401_H
--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+#include "Ds2401.h"
+#include "IeeeEui64.h"
+#include "PlatformIeeeEui64.h"
+
+/**
+ * Convert silicon serial ID to IEEE EUI 64, according to Application Note
+ * 186 - Creating Global Identifiers Using 1-Wire Devices from Dallas/Maxim.
+ */
+module Ds2401ToIeeeEui64C {
+ uses interface HplDs2401 as Hpl;
+ provides interface LocalIeeeEui64;
+} implementation {
+
+ command ieee_eui64_t LocalIeeeEui64.getId() {
+ ds2401_serial_t rom;
+ ieee_eui64_t eui;
+
+ atomic {
+ call Hpl.read(&rom);
+ }
+
+ // company ID
+ eui.data[0] = IEEE_EUI64_COMPANY_ID_0;
+ eui.data[1] = IEEE_EUI64_COMPANY_ID_1;
+ eui.data[2] = IEEE_EUI64_COMPANY_ID_2;
+
+ // 16 bits of the ID is generated by software
+ // could be used for hardware model id and revision, for example
+ eui.data[3] = IEEE_EUI64_SERIAL_ID_0;
+ eui.data[4] = IEEE_EUI64_SERIAL_ID_1;
+
+ // 24 least significant bits of the serial ID read from the DS2401
+ eui.data[5] = rom.data[3];
+ eui.data[6] = rom.data[2];
+ eui.data[7] = rom.data[1];
+
+ return eui;
+ }
+}
--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+#include "Ds2401.h"
+
+/**
+ * Interface to read the 64-bit hardware ID from the DS2401 chip.
+ */
+interface HplDs2401 {
+
+/**
+ * Read the 64-bit hardware ID (family id, serial, crc) from the DS2401 chip.
+ * @param rom Pointer to a ds2401_serial_t struct, defined in ds2401.h.
+ * @returns SUCCESS on success, an error code otherwise.
+ */
+ async command error_t read(ds2401_serial_t* rom);
+}
--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+#include "Ds2401.h"
+
+/**
+ * HPL for the DS2401 hardware ID chip.
+ */
+module HplDs2401C {
+ provides interface HplDs2401 as Hpl;
+ uses interface OneWireMaster as OneWire;
+}
+implementation {
+ bool busy = FALSE;
+
+ async command error_t Hpl.read(ds2401_serial_t* rom) {
+ uint8_t i;
+
+ if(busy) {
+ return EBUSY;
+ }
+
+ busy = TRUE;
+
+ call OneWire.init();
+
+ if(call OneWire.reset() != SUCCESS) {
+ call OneWire.release();
+ busy = FALSE;
+ return EOFF;
+ }
+
+ call OneWire.writeByte(0x33);
+
+ for(i=0;i<DS2401_DATA_LENGTH;i++) {
+ rom->data[i] = call OneWire.readByte();
+ }
+
+ // TODO: crc check
+
+ call OneWire.release();
+ busy = FALSE;
+ return SUCCESS;
+ }
+}
--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+/**
+ * Interface to interact with 1-wire bus devices, as a master on the 1-wire
+ * bus.
+ */
+interface OneWireMaster {
+ /**
+ * Initialize bus (pin is input with pullup).
+ */
+ async command void idle();
+ /**
+ * Initialize bus, start sourcing current (pin is input with pullup).
+ */
+ async command void init();
+ /**
+ * Release bus, stop sourcing current (pin is three-stated input).
+ */
+ async command void release();
+ /**
+ * Generate reset signal.
+ * @returns SUCCESS if a client is present, an error_t error value otherwise.
+ */
+ async command error_t reset();
+ /**
+ * Write bit 1 to the bus.
+ */
+ async command void writeOne();
+ /**
+ * Write bit 0 to the bus.
+ */
+ async command void writeZero();
+ /**
+ * Write 8 bits to the bus, LSB first.
+ * @param b the byte to write.
+ */
+ async command void writeByte(uint8_t b);
+ /**
+ * Read a bit from the bus.
+ */
+ async command bool readBit();
+ /**
+ * Read 8 bits from the bus, LSB first.
+ * @returns the byte read.
+ */
+ async command uint8_t readByte();
+}
--- /dev/null
+// $Id$
+/*
+ * Copyright (c) 2007, Vanderbilt University
+ * All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
+ * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
+ * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author: Janos Sallai
+ */
+
+/**
+ * This module is the implementation of an 1-wire bus master.
+ *
+ */
+module OneWireMasterC {
+ uses interface GeneralIO as Pin;
+ uses interface BusyWait<TMicro, uint16_t> as BusyWaitMicro;
+ provides interface OneWireMaster as OneWire;
+
+}
+implementation {
+
+ async command void OneWire.idle() {
+ call Pin.makeInput();
+ call Pin.set(); // start sourcing current
+ }
+
+ async command void OneWire.init() {
+ call OneWire.idle();
+ call BusyWaitMicro.wait(500); // wait at least 500us after bootup
+ }
+
+ async command void OneWire.release() {
+ call Pin.makeInput();
+ call Pin.clr(); // stop sourcing current
+ }
+
+ async command error_t OneWire.reset() {
+ bool clientPresent;
+
+ // it is assumed that the bus is in idle state here
+
+ // transmit reset pulse
+ call Pin.makeOutput(); // output low
+ call Pin.clr();
+ call BusyWaitMicro.wait(500); // must be at least 480us
+ call OneWire.idle(); // input with pullup set
+
+ // test for present pulse
+ call BusyWaitMicro.wait(80); // presence pulse is sent 18-60us after reset
+ clientPresent = call Pin.get(); // test for presence pulse
+ call BusyWaitMicro.wait(400); // presence pulse is 60-240us long
+
+ if (clientPresent == 0) {
+ return SUCCESS;
+ } else {
+ return EOFF;
+ }
+ }
+
+ async command void OneWire.writeOne() {
+ call Pin.makeOutput(); // output low
+ call Pin.clr();
+ call BusyWaitMicro.wait(8); // must be 1-15us
+ call OneWire.idle(); // input with pullup set
+ call BusyWaitMicro.wait(72); // low time plus idle time must 60-120us
+ }
+
+ async command void OneWire.writeZero() {
+ call Pin.makeOutput(); // output low
+ call Pin.clr();
+ call BusyWaitMicro.wait(72); // must be 60-120us
+ call OneWire.idle(); // input with pullup set
+ call BusyWaitMicro.wait(8); // low time plus idle time must 60-120us
+ }
+
+ async command void OneWire.writeByte(uint8_t b) {
+ uint8_t i;
+
+ // send out bits, LSB first
+ for(i=0;i<8;i++) {
+ if(b & 0x01) {
+ call OneWire.writeOne();
+ } else {
+ call OneWire.writeZero();
+ }
+ b >>= 1;
+ }
+ }
+
+ async command bool OneWire.readBit() {
+ bool b;
+ call Pin.makeOutput(); // output low
+ call Pin.clr();
+ call BusyWaitMicro.wait(1);
+ call OneWire.idle(); // input with pullup set
+ call BusyWaitMicro.wait(8); // must be 1-15us
+ b = call Pin.get(); // read pin
+ call BusyWaitMicro.wait(71); // timeslot length must be 60-120us
+ return b;
+ }
+
+ async command uint8_t OneWire.readByte() {
+ uint8_t i,b=0;
+
+ // read bits, LSB first
+ for(i=0;i<8;i++) {
+ b >>= 1;
+ b |= call OneWire.readBit() << 7;
+ }
+ return b;
+ }
+
+}
projects / tinyos-2.x.git / commitdiff