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      1 /*
      2  * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
      3 
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *   * Redistributions of source code must retain the above copyright
      8  *     notice, this list of conditions and the following disclaimer.
      9  *   * Redistributions in binary form must reproduce the above
     10  *     copyright notice, this list of conditions and the following
     11  *     disclaimer in the documentation and/or other materials provided
     12  *     with the distribution.
     13  *   * Neither the name of The Linux Foundation nor the names of its
     14  *     contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     18  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     21  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     22  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     23  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     24  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     26  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     27  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef INCLUDE_LIBQCOMUTILS_MDPVER
     31 #define INCLUDE_LIBQCOMUTILS_MDPVER
     32 
     33 #include <stdint.h>
     34 #include <utils/Singleton.h>
     35 #include <cutils/properties.h>
     36 
     37 /* This class gets the MSM type from the soc info
     38 */
     39 using namespace android;
     40 namespace qdutils {
     41 // These panel definitions are available at mdss_mdp.h which is internal header
     42 // file and is not available at <linux/mdss_mdp.h>.
     43 // ToDo: once it is available at linux/mdss_mdp.h, these below definitions can
     44 // be removed.
     45 enum mdp_version {
     46     MDP_V_UNKNOWN = 0,
     47     MDP_V2_2    = 220,
     48     MDP_V3_0    = 300,
     49     MDP_V3_0_3  = 303,
     50     MDP_V3_0_4  = 304,
     51     MDP_V3_1    = 310,
     52     MDP_V4_0    = 400,
     53     MDP_V4_1    = 410,
     54     MDP_V4_2    = 420,
     55     MDP_V4_3    = 430,
     56     MDP_V4_4    = 440,
     57     MDSS_V5     = 500,
     58 };
     59 
     60 // chip variants have same major number and minor numbers usually vary
     61 // for e.g., MDSS_MDP_HW_REV_101 is 0x10010000
     62 //                                    1001       -  major number
     63 //                                        0000   -  minor number
     64 // 8x26 v1 minor number is 0000
     65 //      v2 minor number is 0001 etc..
     66 
     67 enum {
     68     MAX_DISPLAY_DIM = 2048,
     69 };
     70 
     71 #define NO_PANEL         '0'
     72 #define MDDI_PANEL       '1'
     73 #define EBI2_PANEL       '2'
     74 #define LCDC_PANEL       '3'
     75 #define EXT_MDDI_PANEL   '4'
     76 #define TV_PANEL         '5'
     77 #define DTV_PANEL        '7'
     78 #define MIPI_VIDEO_PANEL '8'
     79 #define MIPI_CMD_PANEL   '9'
     80 #define WRITEBACK_PANEL  'a'
     81 #define LVDS_PANEL       'b'
     82 #define EDP_PANEL        'c'
     83 
     84 class MDPVersion;
     85 
     86 struct Split {
     87     int mLeft;
     88     int mRight;
     89     Split() : mLeft(0), mRight(0){}
     90     int left() { return mLeft; }
     91     int right() { return mRight; }
     92     friend class MDPVersion;
     93 };
     94 
     95 struct PanelInfo {
     96     char mType;                  // Smart or Dumb
     97     int mPartialUpdateEnable;    // Partial update feature
     98     int mLeftAlign;              // ROI left alignment restriction
     99     int mWidthAlign;             // ROI width alignment restriction
    100     int mTopAlign;               // ROI top alignment restriction
    101     int mHeightAlign;            // ROI height alignment restriction
    102     int mMinROIWidth;            // Min width needed for ROI
    103     int mMinROIHeight;           // Min height needed for ROI
    104     bool mNeedsROIMerge;         // Merge ROI's of both the DSI's
    105     PanelInfo() : mType(NO_PANEL), mPartialUpdateEnable(0),
    106     mLeftAlign(0), mWidthAlign(0), mTopAlign(0), mHeightAlign(0),
    107     mMinROIWidth(0), mMinROIHeight(0), mNeedsROIMerge(false){}
    108     friend class MDPVersion;
    109 };
    110 
    111 class MDPVersion : public Singleton <MDPVersion>
    112 {
    113 public:
    114     MDPVersion();
    115     ~MDPVersion();
    116     int getMDPVersion() {return mMDPVersion;}
    117     char getPanelType() {return mPanelInfo.mType;}
    118     bool hasOverlay() {return mHasOverlay;}
    119     uint8_t getTotalPipes() {
    120         return (uint8_t)(mRGBPipes + mVGPipes + mDMAPipes);
    121     }
    122     uint8_t getRGBPipes() { return mRGBPipes; }
    123     uint8_t getVGPipes() { return mVGPipes; }
    124     uint8_t getDMAPipes() { return mDMAPipes; }
    125     bool supportsDecimation();
    126     uint32_t getMaxMDPDownscale();
    127     uint32_t getMaxMDPUpscale();
    128     bool supportsBWC();
    129     bool supportsMacroTile();
    130     int getLeftSplit() { return mSplit.left(); }
    131     int getRightSplit() { return mSplit.right(); }
    132     bool isPartialUpdateEnabled() { return mPanelInfo.mPartialUpdateEnable; }
    133     int getLeftAlign() { return mPanelInfo.mLeftAlign; }
    134     int getWidthAlign() { return mPanelInfo.mWidthAlign; }
    135     int getTopAlign() { return mPanelInfo.mTopAlign; }
    136     int getHeightAlign() { return mPanelInfo.mHeightAlign; }
    137     int getMinROIWidth() { return mPanelInfo.mMinROIWidth; }
    138     int getMinROIHeight() { return mPanelInfo.mMinROIHeight; }
    139     bool needsROIMerge() { return mPanelInfo.mNeedsROIMerge; }
    140     unsigned long getLowBw() { return mLowBw; }
    141     unsigned long getHighBw() { return mHighBw; }
    142     bool hasMinCropWidthLimitation() const;
    143     bool isSrcSplit() const;
    144     bool isSrcSplitAlways() const;
    145     bool isRGBScalarSupported() const;
    146     bool is8x26();
    147     bool is8x74v2();
    148     bool is8084();
    149     bool is8092();
    150     bool is8x16();
    151 
    152 private:
    153     bool updateSysFsInfo();
    154     void updatePanelInfo();
    155     bool updateSplitInfo();
    156     int tokenizeParams(char *inputParams, const char *delim,
    157                         char* tokenStr[], int *idx);
    158     int mFd;
    159     int mMDPVersion;
    160     bool mHasOverlay;
    161     uint32_t mMdpRev;
    162     uint8_t mRGBPipes;
    163     uint8_t mVGPipes;
    164     uint8_t mDMAPipes;
    165     uint32_t mFeatures;
    166     uint32_t mMDPDownscale;
    167     uint32_t mMDPUpscale;
    168     bool mMacroTileEnabled;
    169     Split mSplit;
    170     PanelInfo mPanelInfo;
    171     unsigned long mLowBw; //kbps
    172     unsigned long mHighBw; //kbps
    173     bool mSourceSplit;
    174     //Additional property on top of source split
    175     bool mSourceSplitAlways;
    176     bool mRGBHasNoScalar;
    177 };
    178 }; //namespace qdutils
    179 #endif //INCLUDE_LIBQCOMUTILS_MDPVER
    180