dev: Move generic serial devices to src/dev/serial

Change-Id: I104227fc460f8b561e7375b329a541c1fce881b2
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/4291
Reviewed-by: Gabe Black <gabeblack@google.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/src/dev/serial/uart.hh b/src/dev/serial/uart.hh
new file mode 100644
index 000000000..04e9ec2e0
--- /dev/null
+++ b/src/dev/serial/uart.hh
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2004-2005 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
+ */
+
+/** @file
+ * Base class for UART
+ */
+
+#ifndef __UART_HH__
+#define __UART_HH__
+
+#include "base/callback.hh"
+#include "dev/io_device.hh"
+#include "dev/serial/serial.hh"
+#include "params/Uart.hh"
+
+class Platform;
+
+const int RX_INT = 0x1;
+const int TX_INT = 0x2;
+
+class Uart : public BasicPioDevice
+{
+  protected:
+    int status;
+    Platform *platform;
+    SerialDevice *device;
+
+  public:
+    typedef UartParams Params;
+    Uart(const Params *p, Addr pio_size);
+
+    const Params *
+    params() const
+    {
+        return dynamic_cast<const Params *>(_params);
+    }
+
+    /**
+     * Inform the uart that there is data available.
+     */
+    virtual void dataAvailable() = 0;
+
+    /**
+     * Return if we have an interrupt pending
+     * @return interrupt status
+     */
+    bool intStatus() { return status ? true : false; }
+
+  protected:
+    MakeCallback<Uart, &Uart::dataAvailable> callbackDataAvail;
+};
+
+#endif // __UART_HH__