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# Copyright (c) 2015 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
#
def upgrader(cpt):
"""HDLCD controller rewrite. Converted checkpoints cause the HDLCD
model to start a new screen refresh and FIFO buffer fill immediately
after they are loaded. Expect some timing differences."""
import re
if cpt.get('root','isa') != 'arm':
return
option_names = {
"int_rawstat" : "int_rawstat_serial",
"int_mask" : "int_mask_serial",
"fb_base" : "fb_base",
"fb_line_length" : "fb_line_length",
"fb_line_count" : "fb_line_count_serial",
"fb_line_pitch" : "fb_line_pitch",
"bus_options" : "bus_options_serial",
"v_sync" : "v_sync_serial",
"v_back_porch" : "v_back_porch_serial",
"v_data" : "v_data_serial",
"v_front_porch" : "v_front_porch_serial",
"h_sync" : "h_sync_serial",
"h_back_porch" : "h_back_porch_serial",
"h_data" : "h_data_serial",
"h_front_porch" : "h_front_porch_serial",
"polarities" : "polarities_serial",
"command" : "command_serial",
"pixel_format" : "pixel_format_serial",
"red_select" : "red_select_serial",
"green_select" : "green_select_serial",
"blue_select" : "blue_select_serial",
}
for sec in cpt.sections():
if re.search('.*\.hdlcd$', sec):
options = {}
for new, old in option_names.items():
options[new] = cpt.get(sec, old)
cpt.remove_section(sec)
cpt.add_section(sec)
for key, value in options.items():
cpt.set(sec, key, value)
# Create a DMA engine section. The LCD controller will
# initialize the DMA it after the next VSync, so we don't
# care about the actual values
sec_dma = "%s.dmaEngine" % sec
cpt.add_section(sec_dma)
cpt.set(sec_dma, "nextLineAddr", "0")
cpt.set(sec_dma, "frameEnd", "0")
cpt.set(sec_dma, "startAddr", "0")
cpt.set(sec_dma, "endAddr", "0")
cpt.set(sec_dma, "nextAddr", "0")
cpt.set(sec_dma, "buffer", "")
print "Warning: Assuming that the HDLCD pixel clock and global frequency " \
"are still using their default values."
sec_osc = "system.realview.realview_io.osc_pxl"
global_tick = 1E12
pxl_freq = 137E6
pxl_ticks = global_tick / pxl_freq
if not cpt.has_section(sec_osc):
cpt.add_section(sec_osc)
cpt.set(sec_osc, "type", "RealViewOsc")
cpt.set(sec_osc, "_clockPeriod", "%i" % pxl_ticks)
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