54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2018-2020 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#ifndef BX_DISPLAY_DDC_H
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#define BX_DISPLAY_DDC_H
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class bx_ddc_c : public logfunctions {
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public:
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bx_ddc_c();
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virtual ~bx_ddc_c();
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Bit8u read(void);
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void write(bx_bool dck, bx_bool dda);
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private:
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Bit8u get_edid_byte(void);
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struct {
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Bit8u ddc_mode;
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bx_bool DCKhost;
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bx_bool DDAhost;
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bx_bool DDAmon;
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Bit8u ddc_stage;
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Bit8u ddc_bitshift;
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bx_bool ddc_ack;
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bx_bool ddc_rw;
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Bit8u ddc_byte;
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Bit8u edid_index;
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bx_bool edid_extblock;
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Bit8u edid_data[256];
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} s; // state information
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};
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#endif
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