Home | History | Annotate | Download | only in HAL 
      1 /* Copyright (c) 2012-2015, 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 __QCAMERA2HWI_MEM_H__
     31 #define __QCAMERA2HWI_MEM_H__
     32 
     33 #include <hardware/camera.h>
     34 #include <utils/Mutex.h>
     35 #include <utils/List.h>
     36 #include <qdMetaData.h>
     37 
     38 extern "C" {
     39 #include <sys/types.h>
     40 #include <linux/msm_ion.h>
     41 #include <mm_camera_interface.h>
     42 }
     43 
     44 namespace qcamera {
     45 
     46 class QCameraMemoryPool;
     47 
     48 // Base class for all memory types. Abstract.
     49 class QCameraMemory {
     50 
     51 public:
     52     int cleanCache(int index) {return cacheOps(index, ION_IOC_CLEAN_CACHES);}
     53     int invalidateCache(int index) {return cacheOps(index, ION_IOC_INV_CACHES);}
     54     int cleanInvalidateCache(int index) {return cacheOps(index, ION_IOC_CLEAN_INV_CACHES);}
     55     int getFd(int index) const;
     56     int getSize(int index) const;
     57     int getCnt() const;
     58 
     59     virtual int allocate(int count, int size, uint32_t is_secure) = 0;
     60     virtual void deallocate() = 0;
     61     virtual int allocateMore(int count, int size) = 0;
     62     virtual int cacheOps(int index, unsigned int cmd) = 0;
     63     virtual int getRegFlags(uint8_t *regFlags) const = 0;
     64     virtual camera_memory_t *getMemory(int index, bool metadata) const = 0;
     65     virtual int getMatchBufIndex(const void *opaque, bool metadata) const = 0;
     66     virtual void *getPtr(int index) const= 0;
     67 
     68     QCameraMemory(bool cached,
     69                   QCameraMemoryPool *pool = NULL,
     70                   cam_stream_type_t streamType = CAM_STREAM_TYPE_DEFAULT);
     71     virtual ~QCameraMemory();
     72 
     73     void getBufDef(const cam_frame_len_offset_t &offset,
     74                 mm_camera_buf_def_t &bufDef, int index) const;
     75 
     76 protected:
     77 
     78     friend class QCameraMemoryPool;
     79 
     80     struct QCameraMemInfo {
     81         int fd;
     82         int main_ion_fd;
     83         ion_user_handle_t handle;
     84         uint32_t size;
     85         bool cached;
     86         int heap_id;
     87     };
     88 
     89     int alloc(int count, int size, int heap_id, uint32_t is_secure);
     90     void dealloc();
     91     static int allocOneBuffer(struct QCameraMemInfo &memInfo,
     92                               int heap_id,
     93                               int size,
     94                               bool cached,
     95                               uint32_t is_secure);
     96     static void deallocOneBuffer(struct QCameraMemInfo &memInfo);
     97     int cacheOpsInternal(int index, unsigned int cmd, void *vaddr);
     98 
     99     bool m_bCached;
    100     int mBufferCount;
    101     struct QCameraMemInfo mMemInfo[MM_CAMERA_MAX_NUM_FRAMES];
    102     QCameraMemoryPool *mMemoryPool;
    103     cam_stream_type_t mStreamType;
    104 };
    105 
    106 class QCameraMemoryPool {
    107 
    108 public:
    109 
    110     QCameraMemoryPool();
    111     virtual ~QCameraMemoryPool();
    112 
    113     int allocateBuffer(struct QCameraMemory::QCameraMemInfo &memInfo,
    114                        int heap_id,
    115                        int size,
    116                        bool cached,
    117                        cam_stream_type_t streamType,
    118                        int is_secure);
    119     void releaseBuffer(struct QCameraMemory::QCameraMemInfo &memInfo,
    120                        cam_stream_type_t streamType);
    121     void clear();
    122 
    123 protected:
    124 
    125     int findBufferLocked(struct QCameraMemory::QCameraMemInfo &memInfo,
    126                          int heap_id,
    127                          uint32_t size,
    128                          bool cached,
    129                          cam_stream_type_t streamType);
    130 
    131     android::List<QCameraMemory::QCameraMemInfo> mPools[CAM_STREAM_TYPE_MAX];
    132     pthread_mutex_t mLock;
    133 };
    134 
    135 // Internal heap memory is used for memories used internally
    136 // They are allocated from /dev/ion.
    137 class QCameraHeapMemory : public QCameraMemory {
    138 public:
    139     QCameraHeapMemory(bool cached);
    140     virtual ~QCameraHeapMemory();
    141 
    142     virtual int allocate(int count, int size, uint32_t is_secure);
    143     virtual int allocateMore(int count, int size);
    144     virtual void deallocate();
    145     virtual int cacheOps(int index, unsigned int cmd);
    146     virtual int getRegFlags(uint8_t *regFlags) const;
    147     virtual camera_memory_t *getMemory(int index, bool metadata) const;
    148     virtual int getMatchBufIndex(const void *opaque, bool metadata) const;
    149 	virtual void *getPtr(int index) const;
    150 
    151 private:
    152     void *mPtr[MM_CAMERA_MAX_NUM_FRAMES];
    153 };
    154 
    155 // Externel heap memory is used for memories shared with
    156 // framework. They are allocated from /dev/ion or gralloc.
    157 class QCameraStreamMemory : public QCameraMemory {
    158 public:
    159     QCameraStreamMemory(camera_request_memory getMemory,
    160                         bool cached,
    161                         QCameraMemoryPool *pool = NULL,
    162                         cam_stream_type_t streamType = CAM_STREAM_TYPE_DEFAULT);
    163     virtual ~QCameraStreamMemory();
    164 
    165     virtual int allocate(int count, int size, uint32_t is_secure);
    166     virtual int allocateMore(int count, int size);
    167     virtual void deallocate();
    168     virtual int cacheOps(int index, unsigned int cmd);
    169     virtual int getRegFlags(uint8_t *regFlags) const;
    170     virtual camera_memory_t *getMemory(int index, bool metadata) const;
    171     virtual int getMatchBufIndex(const void *opaque, bool metadata) const;
    172 	virtual void *getPtr(int index) const;
    173 
    174 protected:
    175     camera_request_memory mGetMemory;
    176     camera_memory_t *mCameraMemory[MM_CAMERA_MAX_NUM_FRAMES];
    177 };
    178 
    179 // Externel heap memory is used for memories shared with
    180 // framework. They are allocated from /dev/ion or gralloc.
    181 class QCameraVideoMemory : public QCameraStreamMemory {
    182 public:
    183     QCameraVideoMemory(camera_request_memory getMemory, bool cached);
    184     virtual ~QCameraVideoMemory();
    185 
    186     virtual int allocate(int count, int size, uint32_t is_secure);
    187     virtual int allocateMore(int count, int size);
    188     virtual void deallocate();
    189     virtual camera_memory_t *getMemory(int index, bool metadata) const;
    190     virtual int getMatchBufIndex(const void *opaque, bool metadata) const;
    191 
    192 private:
    193     camera_memory_t *mMetadata[MM_CAMERA_MAX_NUM_FRAMES];
    194 };
    195 ;
    196 
    197 // Gralloc Memory is acquired from preview window
    198 class QCameraGrallocMemory : public QCameraMemory {
    199     enum {
    200         BUFFER_NOT_OWNED,
    201         BUFFER_OWNED,
    202     };
    203 public:
    204     QCameraGrallocMemory(camera_request_memory getMemory);
    205     void setNativeWindow(preview_stream_ops_t *anw);
    206     virtual ~QCameraGrallocMemory();
    207 
    208     virtual int allocate(int count, int size, uint32_t is_secure);
    209     virtual int allocateMore(int count, int size);
    210     virtual void deallocate();
    211     virtual int cacheOps(int index, unsigned int cmd);
    212     virtual int getRegFlags(uint8_t *regFlags) const;
    213     virtual camera_memory_t *getMemory(int index, bool metadata) const;
    214     virtual int getMatchBufIndex(const void *opaque, bool metadata) const;
    215 	virtual void *getPtr(int index) const;
    216 
    217     void setWindowInfo(preview_stream_ops_t *window, int width, int height,
    218         int stride, int scanline, int format);
    219     // Enqueue/display buffer[index] onto the native window,
    220     // and dequeue one buffer from it.
    221     // Returns the buffer index of the dequeued buffer.
    222     int displayBuffer(int index);
    223 
    224 private:
    225     buffer_handle_t *mBufferHandle[MM_CAMERA_MAX_NUM_FRAMES];
    226     int mLocalFlag[MM_CAMERA_MAX_NUM_FRAMES];
    227     struct private_handle_t *mPrivateHandle[MM_CAMERA_MAX_NUM_FRAMES];
    228     preview_stream_ops_t *mWindow;
    229     int mWidth, mHeight, mFormat, mStride, mScanline;
    230     camera_request_memory mGetMemory;
    231     camera_memory_t *mCameraMemory[MM_CAMERA_MAX_NUM_FRAMES];
    232     int mMinUndequeuedBuffers;
    233     enum ColorSpace_t mColorSpace;
    234 };
    235 
    236 }; // namespace qcamera
    237 
    238 #endif /* __QCAMERA2HWI_MEM_H__ */
    239