Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-10-24 19:18:57 +00:00
parent f7ff71bd46
commit b41eec3f65
3222 changed files with 658579 additions and 1 deletions
--- a/simulators/gem5/src/dev/arm/kmi.hh
+++ b/simulators/gem5/src/dev/arm/kmi.hh
@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2010 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: William Wang
+ */
+
+
+/** @file
+ * Implementiation of a PL050 KMI
+ */
+
+#ifndef __DEV_ARM_PL050_HH__
+#define __DEV_ARM_PL050_HH__
+
+#include <list>
+
+#include "base/vnc/vncserver.hh"
+#include "base/range.hh"
+#include "dev/arm/amba_device.hh"
+#include "params/Pl050.hh"
+
+class Gic;
+
+class Pl050 : public AmbaIntDevice, public VncKeyboard, public VncMouse
+{
+  protected:
+    static const int kmiCr       = 0x000;
+    static const int kmiStat     = 0x004;
+    static const int kmiData     = 0x008;
+    static const int kmiClkDiv   = 0x00C;
+    static const int kmiISR      = 0x010;
+
+    BitUnion8(ControlReg)
+        Bitfield<0> force_clock_low;
+        Bitfield<1> force_data_low;
+        Bitfield<2> enable;
+        Bitfield<3> txint_enable;
+        Bitfield<4> rxint_enable;
+        Bitfield<5> type;
+    EndBitUnion(ControlReg)
+
+    /** control register
+     */
+    ControlReg control;
+
+    /** KMI status register */
+    BitUnion8(StatusReg)
+        Bitfield<0> data_in;
+        Bitfield<1> clk_in;
+        Bitfield<2> rxparity;
+        Bitfield<3> rxbusy;
+        Bitfield<4> rxfull;
+        Bitfield<5> txbusy;
+        Bitfield<6> txempty;
+    EndBitUnion(StatusReg)
+
+    StatusReg status;
+
+    /** clock divisor register
+     * This register is just kept around to satisfy reads after driver does
+     * writes. The divsor does nothing, as we're not actually signaling ps2
+     * serial commands to anything.
+     */
+    uint8_t clkdiv;
+
+    BitUnion8(InterruptReg)
+        Bitfield<0> rx;
+        Bitfield<1> tx;
+    EndBitUnion(InterruptReg)
+
+    /** interrupt status register. */
+    InterruptReg interrupts;
+
+    /** raw interrupt register (unmasked) */
+    InterruptReg rawInterrupts;
+
+    /** If the controller should ignore the next data byte and acknowledge it.
+     * The driver is attempting to setup some feature we don't care about
+     */
+    int ackNext;
+
+    /** is the shift key currently down */
+    bool shiftDown;
+
+    /** The vnc server we're connected to (if any) */
+    VncServer *vnc;
+
+    /** If the linux driver has initialized the device yet and thus can we send
+     * mouse data */
+    bool driverInitialized;
+
+    /** Update the status of the interrupt registers and schedule an interrupt
+     * if required */
+    void updateIntStatus();
+
+    /** Function to generate interrupt */
+    void generateInterrupt();
+
+    /** Wrapper to create an event out of the thing */
+    EventWrapper<Pl050, &Pl050::generateInterrupt> intEvent;
+
+    /** Receive queue. This list contains all the pending commands that
+     * need to be sent to the driver
+     */
+    std::list<uint8_t> rxQueue;
+
+    /** Handle a command sent to the kmi and respond appropriately
+     */
+    void processCommand(uint8_t byte);
+
+  public:
+    typedef Pl050Params Params;
+    const Params *
+    params() const
+    {
+        return dynamic_cast<const Params *>(_params);
+    }
+
+    Pl050(const Params *p);
+
+    virtual Tick read(PacketPtr pkt);
+    virtual Tick write(PacketPtr pkt);
+
+    virtual void mouseAt(uint16_t x, uint16_t y, uint8_t buttons);
+    virtual void keyPress(uint32_t key, bool down);
+
+    virtual void serialize(std::ostream &os);
+    virtual void unserialize(Checkpoint *cp, const std::string &section);
+};
+
+#endif // __DEV_ARM_PL050_HH__