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/*
* Copyright (C) Texas Instruments - http://www.ti.com/
*
* 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.
*/
#include "CameraHal.h"
#include "TICameraParameters.h"
extern "C" {
//#include <timm_osal_interfaces.h>
//#include <timm_osal_trace.h>
};
namespace Ti {
namespace Camera {
///@todo Move these constants to a common header file, preferably in tiler.h
#define STRIDE_8BIT (4 * 1024)
#define STRIDE_16BIT (4 * 1024)
#define ALLOCATION_2D 2
///Utility Macro Declarations
/*--------------------MemoryManager Class STARTS here-----------------------------*/
MemoryManager::MemoryManager() {
mIonFd = -1;
}
MemoryManager::~MemoryManager() {
if ( mIonFd >= 0 ) {
ion_close(mIonFd);
mIonFd = -1;
}
}
status_t MemoryManager::initialize() {
if ( mIonFd == -1 ) {
mIonFd = ion_open();
if ( mIonFd < 0 ) {
CAMHAL_LOGE("ion_open() failed, error: %d", mIonFd);
mIonFd = -1;
return NO_INIT;
}
}
return OK;
}
CameraBuffer* MemoryManager::allocateBufferList(int width, int height, const char* format, int &size, int numBufs)
{
LOG_FUNCTION_NAME;
CAMHAL_ASSERT(mIonFd != -1);
///We allocate numBufs+1 because the last entry will be marked NULL to indicate end of array, which is used when freeing
///the buffers
const uint numArrayEntriesC = (uint)(numBufs+1);
///Allocate a buffer array
CameraBuffer *buffers = new CameraBuffer [numArrayEntriesC];
if(!buffers) {
CAMHAL_LOGEB("Allocation failed when creating buffers array of %d CameraBuffer elements", numArrayEntriesC);
goto error;
}
///Initialize the array with zeros - this will help us while freeing the array in case of error
///If a value of an array element is NULL, it means we didnt allocate it
memset(buffers, 0, sizeof(CameraBuffer) * numArrayEntriesC);
//2D Allocations are not supported currently
if(size != 0) {
struct ion_handle *handle;
int mmap_fd;
size_t stride;
///1D buffers
for (int i = 0; i < numBufs; i++) {
unsigned char *data;
#ifdef USE_LIBION_TI
int ret = ion_alloc(mIonFd, size, 0, 1 << ION_HEAP_TYPE_CARVEOUT,
&handle);
#else
int ret = ion_alloc(mIonFd, size, 0, 1 << ION_HEAP_TYPE_CARVEOUT, 0,
&handle);
#endif
if((ret < 0) || ((int)handle == -ENOMEM)) {
ret = ion_alloc_tiler(mIonFd, (size_t)size, 1, TILER_PIXEL_FMT_PAGE,
OMAP_ION_HEAP_TILER_MASK, &handle, &stride);
}
if((ret < 0) || ((int)handle == -ENOMEM)) {
CAMHAL_LOGEB("FAILED to allocate ion buffer of size=%d. ret=%d(0x%x)", size, ret, ret);
goto error;
}
CAMHAL_LOGDB("Before mapping, handle = %p, nSize = %d", handle, size);
if ((ret = ion_map(mIonFd, handle, size, PROT_READ | PROT_WRITE, MAP_SHARED, 0,
&data, &mmap_fd)) < 0) {
CAMHAL_LOGEB("Userspace mapping of ION buffers returned error %d", ret);
ion_free(mIonFd, handle);
goto error;
}
buffers[i].type = CAMERA_BUFFER_ION;
buffers[i].opaque = data;
buffers[i].mapped = data;
buffers[i].ion_handle = handle;
buffers[i].ion_fd = mIonFd;
buffers[i].fd = mmap_fd;
buffers[i].size = size;
buffers[i].format = CameraHal::getPixelFormatConstant(format);
}
}
LOG_FUNCTION_NAME_EXIT;
return buffers;
error:
CAMHAL_LOGE("Freeing buffers already allocated after error occurred");
if(buffers)
freeBufferList(buffers);
if ( NULL != mErrorNotifier.get() )
mErrorNotifier->errorNotify(-ENOMEM);
LOG_FUNCTION_NAME_EXIT;
return NULL;
}
CameraBuffer* MemoryManager::getBufferList(int *numBufs) {
LOG_FUNCTION_NAME;
if (numBufs) *numBufs = -1;
return NULL;
}
//TODO: Get needed data to map tiler buffers
//Return dummy data for now
uint32_t * MemoryManager::getOffsets()
{
LOG_FUNCTION_NAME;
LOG_FUNCTION_NAME_EXIT;
return NULL;
}
int MemoryManager::getFd()
{
LOG_FUNCTION_NAME;
LOG_FUNCTION_NAME_EXIT;
return -1;
}
int MemoryManager::freeBufferList(CameraBuffer *buffers)
{
status_t ret = NO_ERROR;
LOG_FUNCTION_NAME;
int i;
if(!buffers)
{
CAMHAL_LOGEA("NULL pointer passed to freebuffer");
LOG_FUNCTION_NAME_EXIT;
return BAD_VALUE;
}
i = 0;
while(buffers[i].type == CAMERA_BUFFER_ION)
{
if(buffers[i].size)
{
munmap(buffers[i].opaque, buffers[i].size);
close(buffers[i].fd);
ion_free(mIonFd, buffers[i].ion_handle);
}
else
{
CAMHAL_LOGEA("Not a valid Memory Manager buffer");
}
i++;
}
delete [] buffers;
LOG_FUNCTION_NAME_EXIT;
return ret;
}
status_t MemoryManager::setErrorHandler(ErrorNotifier *errorNotifier)
{
status_t ret = NO_ERROR;
LOG_FUNCTION_NAME;
if ( NULL == errorNotifier )
{
CAMHAL_LOGEA("Invalid Error Notifier reference");
ret = -EINVAL;
}
if ( NO_ERROR == ret )
{
mErrorNotifier = errorNotifier;
}
LOG_FUNCTION_NAME_EXIT;
return ret;
}
} // namespace Camera
} // namespace Ti
/*--------------------MemoryManager Class ENDS here-----------------------------*/
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