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/*
** Copyright (c) 2011-2012 The Linux Foundation. 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 __QCAMERAHWI_MEM_H
#define __QCAMERAHWI_MEM_H
#include <binder/MemoryBase.h>
#include <binder/MemoryHeapBase.h>
#include <utils/threads.h>
#include <stdint.h>
#include "QCamera_Intf.h"
extern "C" {
#include <linux/msm_ion.h>
}
#define VIDEO_BUFFER_COUNT 5
#define VIDEO_BUFFER_COUNT_LOW_POWER_CAMCORDER 9
#define PREVIEW_BUFFER_COUNT 5
namespace android {
// 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;
};
class AshmemPool : public MemPool {
public:
AshmemPool(int buffer_size, int num_buffers,
int frame_size,
const char *name);
};
class PmemPool : public MemPool {
public:
PmemPool(const char *pmem_pool,
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;
};
class IonPool : public MemPool {
public:
IonPool( int flags,
int buffer_size, int num_buffers,
int frame_size, int cbcr_offset,
int yoffset, const char *name);
virtual ~IonPool();
int mFd;
int mCbCrOffset;
int myOffset;
int mCameraControlFd;
uint32_t mAlignedSize;
private:
static const char mIonDevName[];
};
};
#endif
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