85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*
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* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
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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:
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* * 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
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of Code Aurora Forum, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <cutils/log.h>
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#include <fcntl.h>
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#include <linux/fb.h>
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#include "mdp_version.h"
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ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion);
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namespace qdutils {
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MDPVersion::MDPVersion()
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{
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int fb_fd = open("/dev/graphics/fb0", O_RDWR);
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int mdp_version = MDP_V_UNKNOWN;
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char panel_type = 0;
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struct fb_fix_screeninfo fb_finfo;
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if (ioctl(fb_fd, FBIOGET_FSCREENINFO, &fb_finfo) < 0) {
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ALOGE("FBIOGET_FSCREENINFO failed");
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mdp_version = MDP_V_UNKNOWN;
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} else {
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if(!strncmp(fb_finfo.id, "msmfb", 5)) {
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char str_ver[4] = { 0 };
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memcpy(str_ver, &fb_finfo.id[5], 3);
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str_ver[3] = '\0';
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mdp_version = atoi(str_ver);
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//Normalize MDP version to ease comparison.
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//This is needed only because
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//MDP 3.0.3 reports value as 303 which
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//is more than all the others
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if (mdp_version < 100)
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mdp_version *= 10;
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} else if (!strncmp(fb_finfo.id, "mdssfb", 6)) {
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mdp_version = MDSS_V5;
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} else {
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mdp_version = MDP_V_UNKNOWN;
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}
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int len = strlen("msmfbXX_");
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if (mdp_version == MDP_V3_0_2 || mdp_version == MDP_V3_0_3)
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len++;
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panel_type = fb_finfo.id[len];
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}
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close(fb_fd);
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mMDPVersion = mdp_version;
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mHasOverlay = false;
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if((mMDPVersion >= MDP_V4_0) || (mMDPVersion == MDP_V_UNKNOWN))
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mHasOverlay = true;
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mPanelType = panel_type;
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#ifdef TARGET_8x50
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mMDPVersion = MDP_V3_1;
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mHasOverlay = false;
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mPanelType = 0;
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#endif
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}
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}; //namespace qdutils
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