dev: Move i2c functionality to src/dev/i2c/

--HG--
rename : src/dev/I2C.py => src/dev/i2c/I2C.py
rename : src/dev/i2cbus.cc => src/dev/i2c/bus.cc
rename : src/dev/i2cbus.hh => src/dev/i2c/bus.hh
rename : src/dev/i2cdev.hh => src/dev/i2c/device.hh

1 files changed, 0 insertions, 153 deletions

diff --git a/src/dev/i2cbus.hh b/src/dev/i2cbus.hh
deleted file mode 100644
index 7212a59fd..000000000
--- a/src/dev/i2cbus.hh
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Copyright (c) 2012 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: Peter Enns
- */
-
-
-/** @file
- * Implementiation of an i2c bus
- */
-
-#ifndef __DEV_I2CBUS__
-#define __DEV_I2CBUS__
-
-#include <map>
-
-#include "dev/i2cdev.hh"
-#include "dev/io_device.hh"
-#include "params/I2CBus.hh"
-
-class I2CBus : public BasicPioDevice
-{
-  protected:
-
-    enum I2CState {
-        IDLE,
-        RECEIVING_ADDR,
-        RECEIVING_DATA,
-        SENDING_DATA,
-    };
-
-    /**
-     * Read [and Set] serial control bits:
-     * Bit [0] is SCL
-     * Bit [1] is SDA
-     *
-     * http://infocenter.arm.com/help/topic/com.arm.doc.dui0440b/Bbajdjeg.html
-     */
-    static const int SB_CONTROLS = 0x0;
-    /** Clear control bits. Analogous to SB_CONTROLS */
-    static const int SB_CONTROLC = 0x4;
-
-    /** I2C clock wire (0, 1). */
-    uint8_t scl;
-    /** I2C data wire (0, 1) */
-    uint8_t sda;
-
-    /**
-     * State used by I2CBus::write to determine what stage of an i2c
-     * transmission it is currently in.
-     */
-    enum I2CState state;
-
-    /**
-     * Order of the bit of the current message that is being sent or
-     * received (0 - 7).
-     */
-    int currBit;
-
-    /**
-     * Key used to access a device in the slave devices map. This
-     * is the same address that is specified in kernel board
-     * initialization code (e.g., arch/arm/mach-realview/core.c).
-     */
-    uint8_t i2cAddr;
-
-    /** 8-bit buffer used to send and receive messages bit by bit. */
-    uint8_t message;
-
-    /**
-     * All the slave i2c devices that are connected to this
-     * bus. Each device has an address that points to the actual
-     * device.
-     */
-    std::map<uint8_t, I2CDevice*> devices;
-
-    /**
-     * Update data (sda) and clock (scl) to match any transitions
-     * specified by pkt.
-     *
-     * @param pkt memory request packet
-     */
-    void updateSignals(PacketPtr pkt);
-
-    /**
-     * Clock set check
-     *
-     * @param pkt memory request packet
-     * @return true if pkt indicates that scl transition from 0 to 1
-     */
-    bool isClockSet(PacketPtr pkt) const;
-
-    /**
-     * i2c start signal check
-     *
-     * @param pkt memory request packet
-     * @return true if pkt indicates a new transmission
-     */
-    bool isStart(PacketPtr pkt) const;
-
-    /**
-     * i2c end signal check
-     *
-     * @param pkt memory request packet
-     * @return true if pkt indicates stopping the current transmission
-     */
-    bool isEnd(PacketPtr pkt) const;
-
-  public:
-
-    I2CBus(const I2CBusParams* p);
-
-    Tick read(PacketPtr pkt) override;
-    Tick write(PacketPtr pkt) override;
-
-    void serialize(CheckpointOut &cp) const override;
-    void unserialize(CheckpointIn &cp) override;
-};
-
-#endif //__DEV_I2CBUS