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Viewing changes to libs/kephal/service/edid.h

  • Committer: Bazaar Package Importer
  • Author(s): Michał Zając
  • Date: 2011-07-09 08:31:15 UTC
  • Revision ID: james.westby@ubuntu.com-20110709083115-ohyxn6z93mily9fc
Tags: upstream-4.6.90
Import upstream version 4.6.90

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libs/kephal/service/edid.h
 
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/*
 
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 *   Copyright 2008 Aike J Sommer <dev@aikesommer.name>
 
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 *
 
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 *   This program is free software; you can redistribute it and/or modify
 
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 *   it under the terms of the GNU General Public License as
 
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 *   published by the Free Software Foundation; either version 2,
 
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 *   or (at your option) any later version.
 
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 *
 
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 *   This program 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
 
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 *   GNU General Public License for more details
 
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 *
 
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 *   You should have received a copy of the GNU Library General Public
 
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 *   License along with this program; if not, write to the
 
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 *   Free Software Foundation, Inc.,
 
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 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 
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 */
 
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#ifndef KEPHAL_EDID_H
 
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#define KEPHAL_EDID_H
 
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#define EDID_HEADER "\x00\xff\xff\xff\xff\xff\xff\x00"
 
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#define EDID_HEADER_SIZE 8
 
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#define EDID_TEST_HEADER(x) (memcmp(x, EDID_HEADER, EDID_HEADER_SIZE) == 0)
 
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#define EDID_VENDOR_START 8
 
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#define EDID_VENDOR_1(x) ('@' + ((x[EDID_VENDOR_START] & 0x7c) >> 2))
 
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#define EDID_VENDOR_2(x) ('@' + ((x[EDID_VENDOR_START] & 0x03) << 3) + ((x[EDID_VENDOR_START + 1] & 0xe0) >> 5))
 
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#define EDID_VENDOR_3(x) ('@' + (x[EDID_VENDOR_START + 1] & 0x1f))
 
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#define EDID_PRODUCT_ID_START (EDID_VENDOR_START + 2)
 
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#define EDID_PRODUCT_ID(x) (x[EDID_PRODUCT_ID_START] | (x[EDID_PRODUCT_ID_START + 1] << 8))
 
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#define EDID_SERIAL_NUMBER_START (EDID_PRODUCT_ID_START + 2)
 
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#define EDID_SERIAL_NUMBER(x) (x[EDID_SERIAL_NUMBER_START] | (x[EDID_SERIAL_NUMBER_START + 1] << 8) | (x[EDID_SERIAL_NUMBER_START + 2] << 16) | (x[EDID_SERIAL_NUMBER_START + 3] << 24))
 
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#endif // KEPHAL_EDID_H
 
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