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      1 /*
      2 // Copyright(c)2014 IntelCorporation
      3 //
      4 // LicensedundertheApacheLicense,Version2.0(the"License");
      5 // youmaynotusethisfileexceptincompliancewiththeLicense.
      6 // YoumayobtainacopyoftheLicenseat
      7 //
      8 // http://www.apache.org/licenses/LICENSE-2.0
      9 //
     10 // Unlessrequiredbyapplicablelaworagreedtoinwriting,software
     11 // distributedundertheLicenseisdistributedonan"ASIS"BASIS,
     12 // WITHOUTWARRANTIESORCONDITIONSOFANYKIND,eitherexpressorimplied.
     13 // SeetheLicenseforthespecificlanguagegoverningpermissionsand
     14 // limitationsundertheLicense.
     15 */
     16 #ifndef WSBM_H__
     17 #define WSBM_H__
     18 
     19 #include <ips/common/WsbmWrapper.h>
     20 
     21 /**
     22  * Class: WSBM
     23  * A wrapper class to use libwsbm functionalities
     24  */
     25 class Wsbm
     26 {
     27 private:
     28     int mDrmFD;
     29 public:
     30     Wsbm(int drmFD);
     31     ~Wsbm();
     32     bool initialize();
     33     void deinitialize();
     34     bool allocateTTMBuffer(uint32_t size, uint32_t align,void ** buf);
     35     bool allocateTTMBufferUB(uint32_t size, uint32_t align, void ** buf, void *user_pt);
     36     bool destroyTTMBuffer(void * buf);
     37     void * getCPUAddress(void * buf);
     38     uint32_t getGttOffset(void * buf);
     39     bool wrapTTMBuffer(uint32_t handle, void **buf);
     40     bool unreferenceTTMBuffer(void *buf);
     41     bool waitIdleTTMBuffer(void *buf);
     42     uint32_t getKBufHandle(void *buf);
     43 private:
     44     bool mInitialized;
     45 };
     46 
     47 #endif /*__INTEL_WSBM_H__*/
     48