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105 lines
3.8 KiB
105 lines
3.8 KiB
/* |
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* Copyright (c) 2012-2013, The Linux Foundation. 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 The Linux Foundation 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 <sys/ioctl.h> |
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#include <linux/fb.h> |
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#include <linux/msm_mdp.h> |
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#include "mdp_version.h" |
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namespace android { |
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ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::MDPVersion); |
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} |
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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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mMdpRev = 0; |
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mRGBPipes = mVGPipes = 0; |
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mDMAPipes = 0; |
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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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mRGBPipes = mVGPipes = 2; |
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} else if (!strncmp(fb_finfo.id, "mdssfb", 6)) { |
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mdp_version = MDSS_V5; |
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#ifdef MDSS_TARGET |
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struct msmfb_metadata metadata; |
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memset(&metadata, 0 , sizeof(metadata)); |
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metadata.op = metadata_op_get_caps; |
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if (ioctl(fb_fd, MSMFB_METADATA_GET, &metadata) == -1) { |
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ALOGE("Error retrieving MDP revision and pipes info"); |
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mdp_version = MDP_V_UNKNOWN; |
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} else { |
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mMdpRev = metadata.data.caps.mdp_rev; |
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mRGBPipes = metadata.data.caps.rgb_pipes; |
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mVGPipes = metadata.data.caps.vig_pipes; |
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mDMAPipes = metadata.data.caps.dma_pipes; |
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} |
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#endif |
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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_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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} |
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}; //namespace qdutils |
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