derek/gem5
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: Add a Keyboard Mouse Interface controller

Browse Source
This commit is contained in:
William Wang
2010-11-15 14:04:03 -06:00
parent fc1eeafc94
commit 6fbea15064
4 changed files with 333 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
src/dev/arm/RealView.py
View File

@@ -38,6 +38,7 @@
#
# Authors: Ali Saidi
# Gabe Black
# William Wang
from m5.params import *
from m5.proxy import *
@@ -93,6 +94,13 @@ class Sp804(AmbaDevice):
clock1 = Param.Clock('1MHz', "Clock speed of the input")
amba_id = 0x00141804
class Pl050(AmbaDevice):
type = 'Pl050'
gic = Param.Gic(Parent.any, "Gic to use for interrupting")
int_num = Param.UInt32("Interrupt number that connects to GIC")
int_delay = Param.Latency("100ns", "Time between action and interrupt generation by UART")
amba_id = 0x00141050
class Pl111(AmbaDmaDevice):
type = 'Pl111'
clock = Param.Clock('24MHz', "Clock speed of the input")
@@ -112,6 +120,8 @@ class RealViewPBX(RealView):
timer0 = Sp804(int_num0=36, int_num1=36, pio_addr=0x10011000)
timer1 = Sp804(int_num0=37, int_num1=37, pio_addr=0x10012000)
clcd = Pl111(pio_addr=0x10020000, int_num=55)
kmi0 = Pl050(pio_addr=0x10006000, int_num=52)
kmi1 = Pl050(pio_addr=0x10007000, int_num=53)
l2x0_fake = IsaFake(pio_addr=0x1f002000, pio_size=0xfff)
flash_fake = IsaFake(pio_addr=0x40000000, pio_size=0x4000000)
@@ -129,8 +139,6 @@ class RealViewPBX(RealView):
sci_fake = AmbaFake(pio_addr=0x1000e000)
aaci_fake = AmbaFake(pio_addr=0x10004000)
mmc_fake = AmbaFake(pio_addr=0x10005000)
kmi0_fake = AmbaFake(pio_addr=0x10006000)
kmi1_fake = AmbaFake(pio_addr=0x10007000)
rtc_fake = AmbaFake(pio_addr=0x10017000, amba_id=0x41031)
@@ -149,6 +157,8 @@ class RealViewPBX(RealView):
self.timer0.pio = bus.port
self.timer1.pio = bus.port
self.clcd.pio = bus.port
self.kmi0.pio = bus.port
self.kmi1.pio = bus.port
self.dmac_fake.pio = bus.port
self.uart1_fake.pio = bus.port
self.uart2_fake.pio = bus.port
@@ -163,19 +173,21 @@ class RealViewPBX(RealView):
self.sci_fake.pio = bus.port
self.aaci_fake.pio = bus.port
self.mmc_fake.pio = bus.port
self.kmi0_fake.pio = bus.port
self.kmi1_fake.pio = bus.port
self.rtc_fake.pio = bus.port
self.flash_fake.pio = bus.port
# Interrupt numbers are wrong here
# Reference for memory map and interrupt number
# RealView Emulation Baseboard User Guide (ARM DUI 0143B)
# Chapter 4: Programmer's Reference
class RealViewEB(RealView):
uart = Pl011(pio_addr=0x10009000, int_num=44)
realview_io = RealViewCtrl(pio_addr=0x10000000)
gic = Gic(dist_addr=0x10041000, cpu_addr=0x10040000)
timer0 = Sp804(int_num0=36, int_num1=36, pio_addr=0x10011000)
timer1 = Sp804(int_num0=37, int_num1=37, pio_addr=0x10012000)
clcd = Pl111(pio_addr=0x10020000, int_num=55)
clcd = Pl111(pio_addr=0x10020000, int_num=23)
kmi0 = Pl050(pio_addr=0x10006000, int_num=20)
kmi1 = Pl050(pio_addr=0x10007000, int_num=21)
l2x0_fake = IsaFake(pio_addr=0x1f002000, pio_size=0xfff, warn_access="1")
dmac_fake = AmbaFake(pio_addr=0x10030000)
@@ -192,8 +204,6 @@ class RealViewEB(RealView):
sci_fake = AmbaFake(pio_addr=0x1000e000)
aaci_fake = AmbaFake(pio_addr=0x10004000)
mmc_fake = AmbaFake(pio_addr=0x10005000)
kmi0_fake = AmbaFake(pio_addr=0x10006000)
kmi1_fake = AmbaFake(pio_addr=0x10007000)
rtc_fake = AmbaFake(pio_addr=0x10017000, amba_id=0x41031)
@@ -212,6 +222,8 @@ class RealViewEB(RealView):
self.timer0.pio = bus.port
self.timer1.pio = bus.port
self.clcd.pio = bus.port
self.kmi0.pio = bus.port
self.kmi1.pio = bus.port
self.dmac_fake.pio = bus.port
self.uart1_fake.pio = bus.port
self.uart2_fake.pio = bus.port
@@ -226,7 +238,5 @@ class RealViewEB(RealView):
self.sci_fake.pio = bus.port
self.aaci_fake.pio = bus.port
self.mmc_fake.pio = bus.port
self.kmi0_fake.pio = bus.port
self.kmi1_fake.pio = bus.port
self.rtc_fake.pio = bus.port

2
src/dev/arm/SConscript
View File

@@ -47,10 +47,12 @@ if env['FULL_SYSTEM'] and env['TARGET_ISA'] == 'arm':
Source('gic.cc')
Source('pl011.cc')
Source('pl111.cc')
Source('kmi.cc')
Source('timer_sp804.cc')
Source('rv_ctrl.cc')
Source('realview.cc')
TraceFlag('AMBA')
TraceFlag('PL111')
TraceFlag('Pl050')
TraceFlag('GIC')

189
src/dev/arm/kmi.cc Normal file
View File

@@ -0,0 +1,189 @@
/*
* 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
*/
#include "base/trace.hh"
#include "dev/arm/amba_device.hh"
#include "dev/arm/kmi.hh"
#include "mem/packet.hh"
#include "mem/packet_access.hh"
Pl050::Pl050(const Params *p)
: AmbaDevice(p), control(0x00), status(0x43), kmidata(0x00), clkdiv(0x00),
intreg(0x00), intNum(p->int_num), gic(p->gic), intDelay(p->int_delay),
intEvent(this)
{
pioSize = 0xfff;
}
Tick
Pl050::read(PacketPtr pkt)
{
assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
Addr daddr = pkt->getAddr() - pioAddr;
pkt->allocate();
DPRINTF(Pl050, " read register %#x size=%d\n", daddr, pkt->getSize());
// use a temporary data since the KMI registers are read/written with
// different size operations
//
uint32_t data = 0;
switch (daddr) {
case kmiCr:
data = control;
break;
case kmiStat:
data = status;
break;
case kmiData:
data = kmidata;
break;
case kmiClkDiv:
data = clkdiv;
break;
case kmiISR:
data = intreg;
break;
default:
if (AmbaDev::readId(pkt, ambaId, pioAddr)) {
// Hack for variable size accesses
data = pkt->get<uint32_t>();
break;
}
warn("Tried to read PL050 at offset %#x that doesn't exist\n", daddr);
break;
}
switch(pkt->getSize()) {
case 1:
pkt->set<uint8_t>(data);
break;
case 2:
pkt->set<uint16_t>(data);
break;
case 4:
pkt->set<uint32_t>(data);
break;
default:
panic("KMI read size too big?\n");
break;
}
pkt->makeAtomicResponse();
return pioDelay;
}
Tick
Pl050::write(PacketPtr pkt)
{
assert(pkt->getAddr() >= pioAddr && pkt->getAddr() < pioAddr + pioSize);
Addr daddr = pkt->getAddr() - pioAddr;
DPRINTF(Pl050, " write register %#x value %#x size=%d\n", daddr,
pkt->get<uint8_t>(), pkt->getSize());
// use a temporary data since the KMI registers are read/written with
// different size operations
//
uint32_t data = 0;
switch (pkt->getSize()) {
case 1:
data = pkt->get<uint8_t>();
break;
case 2:
data = pkt->get<uint16_t>();
break;
case 4:
data = pkt->get<uint32_t>();
break;
default:
panic("KMI write size too big?\n");
break;
}
switch (daddr) {
case kmiCr:
control = data;
break;
case kmiStat:
panic("Tried to write PL050 register(read only) at offset %#x\n",
daddr);
break;
case kmiData:
kmidata = data;
break;
case kmiClkDiv:
clkdiv = data;
break;
case kmiISR:
panic("Tried to write PL050 register(read only) at offset %#x\n",
daddr);
break;
default:
warn("Tried to write PL050 at offset %#x that doesn't exist\n", daddr);
break;
}
pkt->makeAtomicResponse();
return pioDelay;
}
void
Pl050::generateInterrupt()
{
if (intreg.rxintr || intreg.txintr) {
gic->sendInt(intNum);
DPRINTF(Pl050, " -- Generated\n");
}
}
Pl050 *
Pl050Params::create()
{
return new Pl050(this);
}

122
src/dev/arm/kmi.hh Normal file
View File

@@ -0,0 +1,122 @@
/*
* 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 "base/range.hh"
#include "dev/io_device.hh"
#include "params/Pl050.hh"
class Gic;
class Pl050 : public AmbaDevice
{
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;
// control register
uint8_t control;
// status register
uint8_t status;
// received data (read) or data to be transmitted (write)
uint8_t kmidata;
// clock divisor register
uint8_t clkdiv;
BitUnion8(IntReg)
Bitfield<0> txintr;
Bitfield<1> rxintr;
EndBitUnion(IntReg)
/** interrupt mask register. */
IntReg intreg;
/** Interrupt number to generate */
int intNum;
/** Gic to use for interrupting */
Gic *gic;
/** Delay before interrupting */
Tick intDelay;
/** Function to generate interrupt */
void generateInterrupt();
/** Wrapper to create an event out of the thing */
EventWrapper<Pl050, &Pl050::generateInterrupt> intEvent;
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);
/**
* Return if we have an interrupt pending
* @return interrupt status
* @todo fix me when implementation improves
*/
virtual bool intStatus() { return false; }
};
#endif