--- /dev/null
+/*
+ * Copyright (c) 2008, Titanium Mirror, Inc.
+ * 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 Technische Universität Berlin 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 COPYRIGHT
+ * OWNER OR 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.
+ */
+
+/**
+ * HIL interface for the CP210X USB/serial controller chip.
+ *
+ * @author R. Steve McKown <rsmckown@gmail.com>
+ */
+
+interface CP210X {
+ /**
+ * @returns the current attach state of the USB connector.
+ */
+ async command bool isEnabled();
+
+ /**
+ * Enable notifications from the cp210x. This does not enable the USB bus.
+ */
+ async command void enable();
+
+ /**
+ * Disable notifications from the cp210x. This does not disable the USB bus.
+ */
+ async command void disable();
+
+ /**
+ * Signalled any time the USB connection moves from any other state to the
+ * enabled state. In the enabled state, USB is supplying power and data
+ * connections can be established. Signals are only send if notifications
+ * have been enabled.
+ */
+ async event void enabled();
+
+ /**
+ * Signalled any time the USB connection moves out of enabled state. This
+ * may be because the USB host or hub has placed the local USB device into
+ * suspend, the upstream hub has powered down, or the interconnecting cable
+ * has been disconnected. In all cases, only very minimal power is available
+ * from USB, all existing data connections are aborted and no new connections
+ * can be established. Signals are only sent if notifications have been
+ * enabled.
+ */
+ async event void suspended();
+}
--- /dev/null
+/*
+ * Copyright (c) 2008, Titanium Mirror, Inc.
+ * 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 Technische Universität Berlin 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 COPYRIGHT
+ * OWNER OR 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.
+ */
+
+/**
+ * HIL implementation for the CP210X USB/serial controller chip family.
+ *
+ * @author R. Steve McKown <rsmckown@gmail.com>
+ */
+
+configuration CP210XC {
+ provides interface CP210X;
+}
+implementation {
+ components CP210XP;
+ CP210X = CP210XP;
+
+ components MainC;
+ MainC.SoftwareInit -> CP210XP.Init;
+
+ components CP210XPinsC as PinsC;
+ CP210XP.USB_SUSPENDn -> PinsC.USB_SUSPENDn;
+ CP210XP.IntUSB_SUSPENDn -> PinsC.IntUSB_SUSPENDn;
+
+ components new TimerMilliC();
+ CP210XP.Timer -> TimerMilliC;
+}
--- /dev/null
+/*
+ * Copyright (c) 2008, Titanium Mirror, Inc.
+ * 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 Technische Universität Berlin 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 COPYRIGHT
+ * OWNER OR 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.
+ */
+
+/**
+ * HIL implementation for the CP210X USB/serial controller chip family.
+ *
+ * @author R. Steve McKown <rsmckown@gmail.com>
+ */
+
+module CP210XP {
+ provides {
+ interface Init;
+ interface CP210X;
+ }
+ uses {
+ interface GeneralIO as USB_SUSPENDn;
+ interface GpioInterrupt as IntUSB_SUSPENDn;
+ interface Timer<TMilli>;
+ }
+}
+implementation {
+ const static unsigned DELAY = 256; /* 1/4 sec in binary milliseconds */
+ bool enabled;
+
+ void setInt()
+ {
+ if (call USB_SUSPENDn.get())
+ call IntUSB_SUSPENDn.enableFallingEdge();
+ else
+ call IntUSB_SUSPENDn.enableRisingEdge();
+ }
+
+ void unsetInt()
+ {
+ call IntUSB_SUSPENDn.disable();
+ }
+
+ void update()
+ {
+ atomic setInt();
+ }
+
+ command error_t Init.init()
+ {
+ call USB_SUSPENDn.makeInput();
+
+ update();
+ return SUCCESS;
+ }
+
+ async command void CP210X.enable()
+ {
+ atomic {
+ enabled = TRUE;
+ setInt();
+ }
+ }
+
+ async command void CP210X.disable()
+ {
+ atomic {
+ enabled = FALSE;
+ unsetInt();
+ }
+ }
+
+ async command bool CP210X.isEnabled()
+ {
+ /* USB_SUSPENDn is active low and enabled is !suspend */
+ return call USB_SUSPENDn.get();
+ }
+
+ task void signalChange()
+ {
+ bool suspended;
+
+ atomic suspended = call USB_SUSPENDn.get();
+ if (suspended)
+ signal CP210X.suspended();
+ else
+ signal CP210X.enabled();
+ }
+
+ task void startTimer()
+ {
+ call Timer.startOneShot(DELAY);
+ }
+
+ async event void IntUSB_SUSPENDn.fired()
+ {
+ post startTimer();
+ }
+
+ event void Timer.fired()
+ {
+ atomic {
+ update();
+ if (enabled)
+ post signalChange();
+ }
+ }
+
+ default async event void CP210X.enabled() {}
+ default async event void CP210X.suspended() {}
+}
projects / tinyos-2.x.git / commitdiff