/*
** Copyright 2008, Google Inc.
** Copyright (c) 2009-2010, Code Aurora Forum. All rights reserved.
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/

#ifndef ANDROID_HARDWARE_QUALCOMM_CAMERA_HARDWARE_H
#define ANDROID_HARDWARE_QUALCOMM_CAMERA_HARDWARE_H

#include <camera/CameraHardwareInterface.h>
#include <binder/MemoryBase.h>
#include <binder/MemoryHeapBase.h>
#include <stdint.h>
#include <ui/Overlay.h>

extern "C" {
#include <linux/android_pmem.h>
#include <media/msm_camera.h>
#include <camera.h>
#include <camera_defs_i.h>
#include <mm_camera_interface.h>
}

struct str_map {
    const char *const desc;
    int val;
};

typedef enum {
    TARGET_MSM7625,
    TARGET_MSM7627,
    TARGET_QSD8250,
    TARGET_MSM7630,
    TARGET_MSM8660,
    TARGET_MAX
}targetType;

typedef enum {
    LIVESHOT_DONE,
    LIVESHOT_IN_PROGRESS,
    LIVESHOT_STOPPED
}liveshotState;

struct target_map {
    const char *targetStr;
    targetType targetEnum;
};

struct board_property{
    targetType target;
    unsigned int previewSizeMask;
    bool hasSceneDetect;
    bool hasSelectableZoneAf;
};

namespace android {

class QualcommCameraHardware : public CameraHardwareInterface {
public:

    virtual sp<IMemoryHeap> getPreviewHeap() const;
    virtual sp<IMemoryHeap> getRawHeap() const;

    virtual void setCallbacks(notify_callback notify_cb,
                              data_callback data_cb,
                              data_callback_timestamp data_cb_timestamp,
                              void* user);
    virtual void enableMsgType(int32_t msgType);
    virtual void disableMsgType(int32_t msgType);
    virtual bool msgTypeEnabled(int32_t msgType);

    virtual status_t dump(int fd, const Vector<String16>& args) const;
    virtual status_t startPreview();
    virtual void stopPreview();
    virtual bool previewEnabled();
    virtual status_t startRecording();
    virtual void stopRecording();
    virtual bool recordingEnabled();
    virtual void releaseRecordingFrame(const sp<IMemory>& mem);
    virtual status_t autoFocus();
    virtual status_t cancelAutoFocus();
    virtual status_t takePicture();
    virtual status_t takeLiveSnapshot();
    void set_liveshot_exifinfo();
    virtual status_t cancelPicture();
    virtual status_t setParameters(const CameraParameters& params);
    virtual CameraParameters getParameters() const;
    virtual status_t sendCommand(int32_t command, int32_t arg1, int32_t arg2);
    virtual status_t getBufferInfo( sp<IMemory>& Frame, size_t *alignedSize);
    virtual void encodeData( );

    virtual void release();
    virtual bool useOverlay();
    virtual status_t setOverlay(const sp<Overlay> &overlay);

    static sp<CameraHardwareInterface> createInstance();
    static sp<QualcommCameraHardware> getInstance();

    void receivePreviewFrame(struct msm_frame *frame);
    void receiveLiveSnapshot(uint32_t jpeg_size);
    void receiveCameraStats(camstats_type stype, camera_preview_histogram_info* histinfo);
    void receiveRecordingFrame(struct msm_frame *frame);
    void receiveJpegPicture(void);
    void jpeg_set_location();
    void receiveJpegPictureFragment(uint8_t *buf, uint32_t size);
    void notifyShutter(common_crop_t *crop, bool mPlayShutterSoundOnly);
    void receive_camframe_error_timeout();

private:
    QualcommCameraHardware();
    virtual ~QualcommCameraHardware();
    status_t startPreviewInternal();
    status_t setHistogramOn();
    status_t setHistogramOff();
    void stopPreviewInternal();
    friend void *auto_focus_thread(void *user);
    void runAutoFocus();
    status_t cancelAutoFocusInternal();
    bool native_set_dimension (int camfd);
    bool native_jpeg_encode (void);
    bool native_set_parms(mm_camera_parm_type_t type, uint16_t length, void *value);
    bool native_set_parms( mm_camera_parm_type_t type, uint16_t length, void *value, int *result);
    bool native_zoom_image(int fd, int srcOffset, int dstOffset, common_crop_t *crop);

    static wp<QualcommCameraHardware> singleton;

    /* These constants reflect the number of buffers that libmmcamera requires
       for preview and raw, and need to be updated when libmmcamera
       changes.
    */
    static const int kPreviewBufferCount = NUM_PREVIEW_BUFFERS;
    static const int kRawBufferCount = 1;
    static const int kJpegBufferCount = 1;

    int jpegPadding;

    CameraParameters mParameters;
    unsigned int frame_size;
    bool mCameraRunning;
    Mutex mCameraRunningLock;
    bool mPreviewInitialized;

    // This class represents a heap which maintains several contiguous
    // buffers.  The heap may be backed by pmem (when pmem_pool contains
    // the name of a /dev/pmem* file), or by ashmem (when pmem_pool == NULL).

    struct MemPool : public RefBase {
        MemPool(int buffer_size, int num_buffers,
                int frame_size,
                const char *name);

        virtual ~MemPool() = 0;

        void completeInitialization();
        bool initialized() const {
            return mHeap != NULL && mHeap->base() != MAP_FAILED;
        }

        virtual status_t dump(int fd, const Vector<String16>& args) const;

        int mBufferSize;
        int mAlignedBufferSize;
        int mNumBuffers;
        int mFrameSize;
        sp<MemoryHeapBase> mHeap;
        sp<MemoryBase> *mBuffers;

        const char *mName;
    };

    struct AshmemPool : public MemPool {
        AshmemPool(int buffer_size, int num_buffers,
                   int frame_size,
                   const char *name);
    };

    struct PmemPool : public MemPool {
        PmemPool(const char *pmem_pool,
                 int control_camera_fd, int flags, int pmem_type,
                 int buffer_size, int num_buffers,
                 int frame_size, int cbcr_offset,
                 int yoffset, const char *name);
        virtual ~PmemPool();
        int mFd;
        int mPmemType;
        int mCbCrOffset;
        int myOffset;
        int mCameraControlFd;
        uint32_t mAlignedSize;
        struct pmem_region mSize;
    };

    sp<PmemPool> mPreviewHeap;
    sp<PmemPool> mRecordHeap;
    sp<PmemPool> mThumbnailHeap;
    sp<PmemPool> mRawHeap;
    sp<PmemPool> mDisplayHeap;
    sp<AshmemPool> mJpegHeap;
    sp<AshmemPool> mStatHeap;
    sp<PmemPool> mRawSnapShotPmemHeap;
    sp<PmemPool> mPostViewHeap;

    bool startCamera();
    bool initPreview();
    bool initRecord();
    void deinitPreview();
    bool initRaw(bool initJpegHeap);
    bool initLiveSnapshot(int videowidth, int videoheight);
    bool initRawSnapshot();
    void deinitRaw();
    void deinitRawSnapshot();

    bool mFrameThreadRunning;
    Mutex mFrameThreadWaitLock;
    Condition mFrameThreadWait;
    friend void *frame_thread(void *user);
    void runFrameThread(void *data);

    //720p recording video thread
    bool mVideoThreadExit;
    bool mVideoThreadRunning;
    Mutex mVideoThreadWaitLock;
    Condition mVideoThreadWait;
    friend void *video_thread(void *user);
    void runVideoThread(void *data);

    // For Histogram
    int mStatsOn;
    int mCurrent;
    bool mSendData;
    Mutex mStatsWaitLock;
    Condition mStatsWait;


    bool mShutterPending;
    Mutex mShutterLock;

    bool mSnapshotThreadRunning;
    Mutex mSnapshotThreadWaitLock;
    Condition mSnapshotThreadWait;
    friend void *snapshot_thread(void *user);
    void runSnapshotThread(void *data);
    Mutex mRawPictureHeapLock;
    bool mJpegThreadRunning;
    Mutex mJpegThreadWaitLock;
    Condition mJpegThreadWait;
    bool mInSnapshotMode;
    Mutex mInSnapshotModeWaitLock;
    Condition mInSnapshotModeWait;
    bool mEncodePending;
    Mutex mEncodePendingWaitLock;
    Condition mEncodePendingWait;

    void debugShowPreviewFPS() const;
    void debugShowVideoFPS() const;

    int mSnapshotFormat;
    bool mFirstFrame;
    void hasAutoFocusSupport();
    void filterPictureSizes();
    void filterPreviewSizes();
    void storeTargetType();
    bool supportsSceneDetection();
    bool supportsSelectableZoneAf();

    void initDefaultParameters();
    void findSensorType();

    status_t setPreviewSize(const CameraParameters& params);
    status_t setJpegThumbnailSize(const CameraParameters& params);
    status_t setPreviewFrameRate(const CameraParameters& params);
    status_t setPreviewFrameRateMode(const CameraParameters& params);
    status_t setRecordSize(const CameraParameters& params);
    status_t setPictureSize(const CameraParameters& params);
    status_t setJpegQuality(const CameraParameters& params);
    status_t setAntibanding(const CameraParameters& params);
    status_t setEffect(const CameraParameters& params);
    status_t setExposureCompensation(const CameraParameters &params);
    status_t setAutoExposure(const CameraParameters& params);
    status_t setWhiteBalance(const CameraParameters& params);
    status_t setFlash(const CameraParameters& params);
    status_t setGpsLocation(const CameraParameters& params);
    status_t setRotation(const CameraParameters& params);
    status_t setZoom(const CameraParameters& params);
    status_t setFocusMode(const CameraParameters& params);
    status_t setBrightness(const CameraParameters& params);
    status_t setSkinToneEnhancement(const CameraParameters& params);
    status_t setOrientation(const CameraParameters& params);
    status_t setLensshadeValue(const CameraParameters& params);
    status_t setISOValue(const CameraParameters& params);
    status_t setPictureFormat(const CameraParameters& params);
    status_t setSharpness(const CameraParameters& params);
    status_t setContrast(const CameraParameters& params);
    status_t setSaturation(const CameraParameters& params);
    status_t setSceneMode(const CameraParameters& params);
    status_t setContinuousAf(const CameraParameters& params);
    status_t setTouchAfAec(const CameraParameters& params);
    status_t setSceneDetect(const CameraParameters& params);
    status_t setStrTextures(const CameraParameters& params);
    status_t setPreviewFormat(const CameraParameters& params);
    status_t setSelectableZoneAf(const CameraParameters& params);
    void setGpsParameters();
    bool storePreviewFrameForPostview();
    bool isValidDimension(int w, int h);

    Mutex mLock;
    Mutex mCamframeTimeoutLock;
    bool camframe_timeout_flag;
    bool mReleasedRecordingFrame;

    void receiveRawPicture(void);
    void receiveRawSnapshot(void);

    Mutex mCallbackLock;
    Mutex mOverlayLock;
	Mutex mRecordLock;
	Mutex mRecordFrameLock;
	Condition mRecordWait;
    Condition mStateWait;

    /* mJpegSize keeps track of the size of the accumulated JPEG.  We clear it
       when we are about to take a picture, so at any time it contains either
       zero, or the size of the last JPEG picture taken.
    */
    uint32_t mJpegSize;
    unsigned int        mPreviewFrameSize;
    unsigned int        mRecordFrameSize;
    int                 mRawSize;
    int                 mCbCrOffsetRaw;
    int                 mJpegMaxSize;
    int32_t                 mStatSize;

#if DLOPEN_LIBMMCAMERA
    void *libmmcamera;
#endif

    int mCameraControlFd;
    struct msm_camsensor_info mSensorInfo;
    cam_ctrl_dimension_t mDimension;
    bool mAutoFocusThreadRunning;
    Mutex mAutoFocusThreadLock;

    Mutex mAfLock;

    pthread_t mFrameThread;
    pthread_t mVideoThread;
    pthread_t mSnapshotThread;

    common_crop_t mCrop;

    bool mInitialized;

    int mBrightness;
    int mSkinToneEnhancement;
    int mHJR;
    struct msm_frame frames[kPreviewBufferCount];
    struct msm_frame *recordframes;
    bool *record_buffers_tracking_flag;
    bool mInPreviewCallback;
    bool mUseOverlay;
    sp<Overlay>  mOverlay;

    int32_t mMsgEnabled;    // camera msg to be handled
    notify_callback mNotifyCallback;
    data_callback mDataCallback;
    data_callback_timestamp mDataCallbackTimestamp;
    void *mCallbackCookie;  // same for all callbacks
    int mDebugFps;
    int kPreviewBufferCountActual;
    int previewWidth, previewHeight;
    bool mSnapshotDone;
    bool mSnapshotPrepare;
    bool mHasAutoFocusSupport;
    mm_camera_config mCfgControl;
    int videoWidth, videoHeight;

    bool mDisEnabled;
    int mRotation;
    bool mResetOverlayCrop;
    int mThumbnailWidth, mThumbnailHeight;
    status_t setVpeParameters();
    status_t setDIS();
};

}; // namespace android

#endif