SimObject('Uart.py')
Source('serial.cc')
+Source('simple.cc')
Source('terminal.cc')
Source('uart.cc')
Source('uart8250.cc')
+# Copyright (c) 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) 2005-2007 The Regents of The University of Michigan
# All rights reserved.
#
platform = Param.Platform(Parent.any, "Platform this device is part of.")
device = Param.SerialDevice(Parent.any, "The terminal")
+class SimpleUart(Uart):
+ type = 'SimpleUart'
+ cxx_header = "dev/serial/simple.hh"
+ big_endian = Param.Bool(False, "Is the device Big Endian?")
+ pio_size = Param.Addr(0x4, "Size of address range")
+ end_on_eot = Param.Bool(False, "End the simulation when a EOT is "\
+ "received on the UART")
+
class Uart8250(Uart):
type = 'Uart8250'
cxx_header = "dev/serial/uart8250.hh"
--- /dev/null
+/*
+ * Copyright (c) 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
+ */
+
+#include "dev/serial/simple.hh"
+
+#include "mem/packet.hh"
+#include "mem/packet_access.hh"
+#include "params/SimpleUart.hh"
+#include "sim/sim_exit.hh"
+
+SimpleUart::SimpleUart(const SimpleUartParams *p)
+ : Uart(p, p->pio_size),
+ byteOrder(p->big_endian ? BigEndianByteOrder : LittleEndianByteOrder),
+ endOnEOT(p->end_on_eot)
+{
+}
+
+Tick
+SimpleUart::read(PacketPtr pkt)
+{
+ assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+
+ uint64_t data = 0;
+
+ if (device->dataAvailable())
+ data = device->readData();
+
+ pkt->setUintX(data, byteOrder);
+
+ pkt->makeAtomicResponse();
+ return pioDelay;
+}
+
+Tick
+SimpleUart::write(PacketPtr pkt)
+{
+
+ assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
+
+ uint8_t data = (uint8_t)pkt->getUintX(byteOrder);
+ if (data == 0x04 && endOnEOT)
+ exitSimLoop("UART received EOT", 0);
+
+ device->writeData(data);
+
+ pkt->makeAtomicResponse();
+ return pioDelay;
+}
+
+SimpleUart *
+SimpleUartParams::create()
+{
+ return new SimpleUart(this);
+}
--- /dev/null
+/*
+ * Copyright (c) 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_SERIAL_SIMPLE_HH__
+#define __DEV_SERIAL_SIMPLE_HH__
+
+#include "dev/serial/uart.hh"
+
+struct SimpleUartParams;
+
+class SimpleUart : public Uart
+{
+ public:
+ SimpleUart(const SimpleUartParams *p);
+
+ public: // PioDevice
+ Tick read(PacketPtr pkt) override;
+ Tick write(PacketPtr pkt) override;
+
+ public: // Uart
+ void dataAvailable() override {
+ // We don't support interrupts, so ignore the data available
+ // call.
+ };
+
+ protected: // Configuration
+ const ByteOrder byteOrder;
+
+ const bool endOnEOT;
+};
+
+#endif // __DEV_SERIAL_SIMPLE_HH__