QCamera3HWI.h revision 97e8019457b448a6e2141a49a0f471a467b70dc0 
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
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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
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19* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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28*/
29
30#ifndef __QCAMERA3HARDWAREINTERFACE_H__
31#define __QCAMERA3HARDWAREINTERFACE_H__
32
33#include <pthread.h>
34#include <utils/List.h>
35#include <hardware/camera3.h>
36#include <camera/CameraMetadata.h>
37#include "QCamera3HALHeader.h"
38
39extern "C" {
40#include <mm_camera_interface.h>
41#include <mm_jpeg_interface.h>
42}
43
44using namespace android;
45
46namespace qcamera {
47
48#ifndef TRUE
49#define TRUE 1
50#endif
51
52#ifndef FALSE
53#define FALSE 0
54#endif
55
56class QCamera3MetadataChannel;
57class QCamera3HeapMemory;
58
59class QCamera3HardwareInterface {
60public:
61    /* static variable and functions accessed by camera service */
62    static camera3_device_ops_t mCameraOps;
63    static int initialize(const struct camera3_device *,
64                const camera3_callback_ops_t *callback_ops);
65    static int configure_streams(const struct camera3_device *,
66                camera3_stream_configuration_t *stream_list);
67    static int register_stream_buffers(const struct camera3_device *,
68                const camera3_stream_buffer_set_t *buffer_set);
69    static const camera_metadata_t* construct_default_request_settings(
70                                const struct camera3_device *, int type);
71    static int process_capture_request(const struct camera3_device *,
72                                camera3_capture_request_t *request);
73    static void get_metadata_vendor_tag_ops(const struct camera3_device *,
74                                               vendor_tag_query_ops_t* ops);
75    static void dump(const struct camera3_device *, int fd);
76    static int close_camera_device(struct hw_device_t* device);
77public:
78    QCamera3HardwareInterface(int cameraId);
79    virtual ~QCamera3HardwareInterface();
80    int openCamera(struct hw_device_t **hw_device);
81    int getMetadata(int type);
82    camera_metadata_t* translateCapabilityToMetadata(int type);
83
84    static int getCamInfo(int cameraId, struct camera_info *info);
85    static int initCapabilities(int cameraId);
86    static int initStaticMetadata(int cameraId);
87    static void makeTable(cam_dimension_t* dimTable, uint8_t size, int32_t* sizeTable);
88    static void convertRegions(cam_rect_t rect, int32_t* region, int weight);
89    static void convertLandmarks(cam_face_detection_info_t face, int32_t* landmarks);
90    static int32_t getScalarFormat(int32_t format);
91
92    static void captureResultCb(metadata_buffer_t *metadata,
93                camera3_stream_buffer_t *buffer, uint32_t frame_number,
94                void *userdata);
95
96    void sendCaptureResult(const struct camera3_callback_ops *,
97                        const camera3_capture_result_t *result);
98    void notify(const struct camera3_callback_ops *,
99                        const camera3_notify_msg_t *msg);
100
101    int initialize(const camera3_callback_ops_t *callback_ops);
102    int configureStreams(camera3_stream_configuration_t *stream_list);
103    int registerStreamBuffers(const camera3_stream_buffer_set_t *buffer_set);
104    int processCaptureRequest(camera3_capture_request_t *request);
105    void getMetadataVendorTagOps(vendor_tag_query_ops_t* ops);
106    void dump(int fd);
107
108    int setFrameParameters(int frame_id, const camera_metadata_t *settings);
109    int translateMetadataToParameters(const camera_metadata_t *settings);
110    camera_metadata_t* translateCbMetadataToResultMetadata(metadata_buffer_t *metadata);
111    int getJpegSettings(const camera_metadata_t *settings);
112    int initParameters();
113
114    void captureResultCb(metadata_buffer_t *metadata,
115                camera3_stream_buffer_t *buffer, uint32_t frame_number);
116
117    typedef struct {
118        int fwk_name;
119        int hal_name;
120    } QCameraMap;
121
122private:
123
124    int openCamera();
125    int closeCamera();
126    int AddSetParmEntryToBatch(parm_buffer_t *p_table,
127                               cam_intf_parm_type_t paramType,
128                               uint32_t paramLength,
129                               void *paramValue);
130    static int lookupHalName(const QCameraMap arr[],
131                      int len, int fwk_name);
132    static int lookupFwkName(const QCameraMap arr[],
133                      int len, int hal_name);
134
135    int validateCaptureRequest(camera3_capture_request_t *request);
136
137public:
138
139private:
140    camera3_device_t   mCameraDevice;
141    uint8_t            mCameraId;
142    mm_camera_vtbl_t  *mCameraHandle;
143    bool               mCameraOpened;
144    camera_metadata_t *mDefaultMetadata[CAMERA3_TEMPLATE_COUNT];
145
146    const camera3_callback_ops_t *mCallbackOps;
147
148    camera3_stream_t *mInputStream;
149    QCamera3MetadataChannel *mMetadataChannel;
150
151    QCamera3HeapMemory *mParamHeap;
152    parm_buffer_t* mParameters;
153
154    //mutex and conditional variable for request
155    pthread_mutex_t mRequestLock;
156    pthread_cond_t mRequestCond;
157    int mPendingRequest;
158
159    //mutex for serialized access to camera3_device_ops_t functions
160    pthread_mutex_t mMutex;
161
162    //mutex to protect the critial section for processCaptureResult
163    pthread_mutex_t mCaptureResultLock;
164    jpeg_settings_t* mJpegSettings;
165    static const QCameraMap EFFECT_MODES_MAP[];
166    static const QCameraMap WHITE_BALANCE_MODES_MAP[];
167    static const QCameraMap SCENE_MODES_MAP[];
168    static const QCameraMap FOCUS_MODES_MAP[];
169    static const QCameraMap ANTIBANDING_MODES_MAP[];
170    static const QCameraMap AUTO_EXPOSURE_MAP[];
171    static const QCameraMap FLASH_MODES_MAP[];
172};
173
174}; // namespace qcamera
175
176#endif /* __QCAMERA2HARDWAREINTERFACE_H__ */
177