Uart.py revision 12689:f554325372e9
1# Copyright (c) 2018 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license 9# terms below provided that you ensure that this notice is replicated 10# unmodified and in its entirety in all distributions of the software, 11# modified or unmodified, in source code or in binary form. 12# 13# Copyright (c) 2005-2007 The Regents of The University of Michigan 14# All rights reserved. 15# 16# Redistribution and use in source and binary forms, with or without 17# modification, are permitted provided that the following conditions are 18# met: redistributions of source code must retain the above copyright 19# notice, this list of conditions and the following disclaimer; 20# redistributions in binary form must reproduce the above copyright 21# notice, this list of conditions and the following disclaimer in the 22# documentation and/or other materials provided with the distribution; 23# neither the name of the copyright holders nor the names of its 24# contributors may be used to endorse or promote products derived from 25# this software without specific prior written permission. 26# 27# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38# 39# Authors: Nathan Binkert 40 41from m5.params import * 42from m5.proxy import * 43from Device import BasicPioDevice 44from Serial import SerialDevice 45 46class Uart(BasicPioDevice): 47 type = 'Uart' 48 abstract = True 49 cxx_header = "dev/serial/uart.hh" 50 platform = Param.Platform(Parent.any, "Platform this device is part of.") 51 device = Param.SerialDevice(Parent.any, "The terminal") 52 53class SimpleUart(Uart): 54 type = 'SimpleUart' 55 cxx_header = "dev/serial/simple.hh" 56 big_endian = Param.Bool(False, "Is the device Big Endian?") 57 pio_size = Param.Addr(0x4, "Size of address range") 58 end_on_eot = Param.Bool(False, "End the simulation when a EOT is "\ 59 "received on the UART") 60 61class Uart8250(Uart): 62 type = 'Uart8250' 63 cxx_header = "dev/serial/uart8250.hh" 64