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      1 /* Copyright (c) 2012-2013, The Linux Foundataion. All rights reserved.
      2  *
      3  * Redistribution and use in source and binary forms, with or without
      4  * modification, are permitted provided that the following conditions are
      5  * met:
      6  *     * Redistributions of source code must retain the above copyright
      7  *       notice, this list of conditions and the following disclaimer.
      8  *     * Redistributions in binary form must reproduce the above
      9  *       copyright notice, this list of conditions and the following
     10  *       disclaimer in the documentation and/or other materials provided
     11  *       with the distribution.
     12  *     * Neither the name of The Linux Foundation nor the names of its
     13  *       contributors may be used to endorse or promote products derived
     14  *       from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     23  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     25  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
     26  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #ifndef __QCAMERA3HWI_MEM_H__
     31 #define __QCAMERA3HWI_MEM_H__
     32 #include <hardware/camera3.h>
     33 #include <utils/Mutex.h>
     34 #include <qdMetaData.h>
     35 
     36 extern "C" {
     37 #include <sys/types.h>
     38 #include <linux/msm_ion.h>
     39 #include <mm_camera_interface.h>
     40 }
     41 
     42 namespace qcamera {
     43 
     44 // Base class for all memory types. Abstract.
     45 class QCamera3Memory {
     46 
     47 public:
     48     int cleanCache(int index) {return cacheOps(index, ION_IOC_CLEAN_CACHES);}
     49     int invalidateCache(int index) {return cacheOps(index, ION_IOC_INV_CACHES);}
     50     int cleanInvalidateCache(int index) {return cacheOps(index, ION_IOC_CLEAN_INV_CACHES);}
     51     int getFd(int index) const;
     52     int getSize(int index) const;
     53     int getCnt() const;
     54 
     55     virtual int cacheOps(int index, unsigned int cmd) = 0;
     56     virtual int getRegFlags(uint8_t *regFlags) const = 0;
     57     virtual int getMatchBufIndex(void *object) = 0;
     58     virtual void *getPtr(int index) const= 0;
     59 
     60     QCamera3Memory();
     61     virtual ~QCamera3Memory();
     62 
     63     int32_t getBufDef(const cam_frame_len_offset_t &offset,
     64                 mm_camera_buf_def_t &bufDef, int index) const;
     65 
     66 protected:
     67     struct QCamera3MemInfo {
     68         int fd;
     69         int main_ion_fd;
     70         ion_user_handle_t handle;
     71         uint32_t size;
     72     };
     73 
     74     int cacheOpsInternal(int index, unsigned int cmd, void *vaddr);
     75 
     76     int mBufferCount;
     77     struct QCamera3MemInfo mMemInfo[MM_CAMERA_MAX_NUM_FRAMES];
     78     void *mPtr[MM_CAMERA_MAX_NUM_FRAMES];
     79 };
     80 
     81 // Internal heap memory is used for memories used internally
     82 // They are allocated from /dev/ion. Examples are: capabilities,
     83 // parameters, metadata, and internal YUV data for jpeg encoding.
     84 class QCamera3HeapMemory : public QCamera3Memory {
     85 public:
     86     QCamera3HeapMemory();
     87     virtual ~QCamera3HeapMemory();
     88 
     89     int allocate(int count, int size, bool queueAll);
     90     void deallocate();
     91 
     92     virtual int cacheOps(int index, unsigned int cmd);
     93     virtual int getRegFlags(uint8_t *regFlags) const;
     94     virtual int getMatchBufIndex(void *object);
     95     virtual void *getPtr(int index) const;
     96 private:
     97     int alloc(int count, int size, int heap_id);
     98     void dealloc();
     99 
    100     int allocOneBuffer(struct QCamera3MemInfo &memInfo, int heap_id, int size);
    101     void deallocOneBuffer(struct QCamera3MemInfo &memInfo);
    102     bool mQueueAll;
    103 };
    104 
    105 // Gralloc Memory shared with frameworks
    106 class QCamera3GrallocMemory : public QCamera3Memory {
    107 public:
    108     QCamera3GrallocMemory();
    109     virtual ~QCamera3GrallocMemory();
    110 
    111     int registerBuffer(buffer_handle_t *buffer);
    112     void unregisterBuffers();
    113     virtual int cacheOps(int index, unsigned int cmd);
    114     virtual int getRegFlags(uint8_t *regFlags) const;
    115     virtual int getMatchBufIndex(void *object);
    116     virtual void *getPtr(int index) const;
    117     int32_t markFrameNumber(int index, uint32_t frameNumber);
    118     int32_t getFrameNumber(int index);
    119     void *getBufferHandle(int index);
    120     int32_t setColorSpace(uint8_t intent);
    121 private:
    122     buffer_handle_t *mBufferHandle[MM_CAMERA_MAX_NUM_FRAMES];
    123     struct private_handle_t *mPrivateHandle[MM_CAMERA_MAX_NUM_FRAMES];
    124     uint32_t mCurrentFrameNumbers[MM_CAMERA_MAX_NUM_FRAMES];
    125     enum ColorSpace_t mColorSpace;
    126 };
    127 
    128 };
    129 #endif
    130