--- /dev/null
+/*
+ * Copyright (c) 2010, 2017-2018 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Copyright (c) 2005 The Regents of The University of Michigan
+ * 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 copyright holders 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.
+ *
+ * Authors: Ali Saidi
+ * William Wang
+ * Andreas Sandberg
+ */
+
+#include "dev/ps2/touchkit.hh"
+
+#include "base/logging.hh"
+#include "debug/PS2.hh"
+#include "dev/ps2.hh"
+#include "params/PS2TouchKit.hh"
+
+const uint8_t PS2TouchKit::ID[] = {0x00};
+
+PS2TouchKit::PS2TouchKit(const PS2TouchKitParams *p)
+ : PS2Device(p),
+ vnc(p->vnc),
+ ackNext(false),
+ driverInitialized(false)
+{
+ if (vnc)
+ vnc->setMouse(this);
+}
+
+void
+PS2TouchKit::serialize(CheckpointOut &cp) const
+{
+ PS2Device::serialize(cp);
+
+ SERIALIZE_SCALAR(ackNext);
+ SERIALIZE_SCALAR(driverInitialized);
+}
+
+void
+PS2TouchKit::unserialize(CheckpointIn &cp)
+{
+ PS2Device::unserialize(cp);
+
+ UNSERIALIZE_SCALAR(ackNext);
+ UNSERIALIZE_SCALAR(driverInitialized);
+}
+
+void
+PS2TouchKit::recv(uint8_t data)
+{
+ if (ackNext) {
+ ackNext--;
+ sendAck();
+ return;
+ }
+
+ switch (data) {
+ case Ps2::Ps2Reset:
+ sendAck();
+ send(Ps2::SelfTestPass);
+ break;
+
+ case Ps2::SetResolution:
+ case Ps2::SetRate:
+ case Ps2::SetStatusLed:
+ sendAck();
+ ackNext = 1;
+ break;
+
+ case Ps2::ReadId:
+ sendAck();
+ send((const uint8_t *)&ID, sizeof(ID));
+ break;
+
+ case Ps2::TpReadId:
+ // We're not a trackpoint device, this should make the probe
+ // go away
+ sendAck();
+ send(0);
+ send(0);
+ sendAck();
+ break;
+
+ case Ps2::SetScaling1_1:
+ case Ps2::SetScaling1_2:
+ case Ps2::Disable:
+ case Ps2::Enable:
+ case Ps2::SetDefaults:
+ sendAck();
+ break;
+
+ case Ps2::StatusRequest:
+ sendAck();
+ send(0);
+ send(2); // default resolution
+ send(100); // default sample rate
+ break;
+
+ case Ps2::TouchKitId:
+ ackNext = 2;
+ sendAck();
+ send(Ps2::TouchKitId);
+ send(1);
+ send('A');
+
+ driverInitialized = true;
+ break;
+
+ default:
+ panic("Unknown byte received: %d\n", data);
+ }
+}
+
+void
+PS2TouchKit::mouseAt(uint16_t x, uint16_t y, uint8_t buttons)
+{
+ // If the driver hasn't initialized the device yet, no need to try and send
+ // it anything. Similarly we can get vnc mouse events orders of magnitude
+ // faster than m5 can process them. Only queue up two sets mouse movements
+ // and don't add more until those are processed.
+ if (!driverInitialized || sendPending() > 10)
+ return;
+
+ // Convert screen coordinates to touchpad coordinates
+ const uint16_t _x = (2047.0 / vnc->videoWidth()) * x;
+ const uint16_t _y = (2047.0 / vnc->videoHeight()) * y;
+
+ const uint8_t resp[] = {
+ buttons,
+ (uint8_t)(_x >> 7), (uint8_t)(_x & 0x7f),
+ (uint8_t)(_y >> 7), (uint8_t)(_y & 0x7f),
+ };
+
+ send(resp, sizeof(resp));
+}
+
+PS2TouchKit *
+PS2TouchKitParams::create()
+{
+ return new PS2TouchKit(this);
+}
--- /dev/null
+/*
+ * Copyright (c) 2010, 2017-2018 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * 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 copyright holders 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.
+ *
+ * Authors: Andreas Sandberg
+ */
+
+#ifndef __DEV_PS2_TOUCHKIT_HH__
+#define __DEV_PS2_TOUCHKIT_HH__
+
+#include "base/vnc/vncinput.hh"
+#include "dev/ps2/device.hh"
+
+struct PS2TouchKitParams;
+
+class PS2TouchKit : public PS2Device, public VncMouse
+{
+ protected:
+ static const uint8_t ID[];
+
+ public:
+ PS2TouchKit(const PS2TouchKitParams *p);
+
+ void serialize(CheckpointOut &cp) const override;
+ void unserialize(CheckpointIn &cp) override;
+
+ protected: // PS2Device
+ void recv(uint8_t data) override;
+
+ public: // VncMouse
+ void mouseAt(uint16_t x, uint16_t y, uint8_t buttons) override;
+
+ protected:
+ /** The vnc server we're connected to (if any) */
+ VncInput *const vnc;
+
+ /**
+ * If the controller should ignore the next N data bytes and
+ * acknowledge them. This occurs when the driver is attempting to
+ * setup some feature we don't care about.
+ */
+ int ackNext;
+
+ /**
+ * Has the driver been initialized in TouchKit mode? The model
+ * suppresses touch event generation until this is true.
+ */
+ bool driverInitialized;
+};
+
+#endif // __DEV_PS2_TOUCHKIT_HH__
+
projects / gem5.git / commitdiff