110 lines
4.6 KiB
Python
110 lines
4.6 KiB
Python
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# Copyright (c) 2015 ARM Limited
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# All rights reserved
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Andreas Sandberg
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#
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def upgrader(cpt):
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"""HDLCD controller rewrite. Converted checkpoints cause the HDLCD
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model to start a new screen refresh and FIFO buffer fill immediately
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after they are loaded. Expect some timing differences."""
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import re
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if cpt.get('root','isa') != 'arm':
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return
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option_names = {
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"int_rawstat" : "int_rawstat_serial",
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"int_mask" : "int_mask_serial",
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"fb_base" : "fb_base",
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"fb_line_length" : "fb_line_length",
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"fb_line_count" : "fb_line_count_serial",
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"fb_line_pitch" : "fb_line_pitch",
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"bus_options" : "bus_options_serial",
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"v_sync" : "v_sync_serial",
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"v_back_porch" : "v_back_porch_serial",
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"v_data" : "v_data_serial",
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"v_front_porch" : "v_front_porch_serial",
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"h_sync" : "h_sync_serial",
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"h_back_porch" : "h_back_porch_serial",
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"h_data" : "h_data_serial",
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"h_front_porch" : "h_front_porch_serial",
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"polarities" : "polarities_serial",
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"command" : "command_serial",
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"pixel_format" : "pixel_format_serial",
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"red_select" : "red_select_serial",
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"green_select" : "green_select_serial",
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"blue_select" : "blue_select_serial",
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}
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for sec in cpt.sections():
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if re.search('.*\.hdlcd$', sec):
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options = {}
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for new, old in option_names.items():
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options[new] = cpt.get(sec, old)
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cpt.remove_section(sec)
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cpt.add_section(sec)
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for key, value in options.items():
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cpt.set(sec, key, value)
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# Create a DMA engine section. The LCD controller will
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# initialize the DMA it after the next VSync, so we don't
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# care about the actual values
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sec_dma = "%s.dmaEngine" % sec
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cpt.add_section(sec_dma)
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cpt.set(sec_dma, "nextLineAddr", "0")
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cpt.set(sec_dma, "frameEnd", "0")
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cpt.set(sec_dma, "startAddr", "0")
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cpt.set(sec_dma, "endAddr", "0")
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cpt.set(sec_dma, "nextAddr", "0")
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cpt.set(sec_dma, "buffer", "")
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print "Warning: Assuming that the HDLCD pixel clock and global frequency " \
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"are still using their default values."
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sec_osc = "system.realview.realview_io.osc_pxl"
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global_tick = 1E12
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pxl_freq = 137E6
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pxl_ticks = global_tick / pxl_freq
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if not cpt.has_section(sec_osc):
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cpt.add_section(sec_osc)
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cpt.set(sec_osc, "type", "RealViewOsc")
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cpt.set(sec_osc, "_clockPeriod", "%i" % pxl_ticks)
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