1/*
2 * Copyright (C) Texas Instruments - http://www.ti.com/
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "CameraHal.h"
18#include "TICameraParameters.h"
19
20extern "C" {
21
22//#include <timm_osal_interfaces.h>
23//#include <timm_osal_trace.h>
24
25
26};
27
28namespace Ti {
29namespace Camera {
30
31///@todo Move these constants to a common header file, preferably in tiler.h
32#define STRIDE_8BIT (4 * 1024)
33#define STRIDE_16BIT (4 * 1024)
34
35#define ALLOCATION_2D 2
36
37///Utility Macro Declarations
38
39/*--------------------MemoryManager Class STARTS here-----------------------------*/
40MemoryManager::MemoryManager() {
41    mIonFd = -1;
42}
43
44MemoryManager::~MemoryManager() {
45    if ( mIonFd >= 0 ) {
46        ion_close(mIonFd);
47        mIonFd = -1;
48    }
49}
50
51status_t MemoryManager::initialize() {
52    if ( mIonFd == -1 ) {
53        mIonFd = ion_open();
54        if ( mIonFd < 0 ) {
55            CAMHAL_LOGE("ion_open() failed, error: %d", mIonFd);
56            mIonFd = -1;
57            return NO_INIT;
58        }
59    }
60
61    return OK;
62}
63
64CameraBuffer* MemoryManager::allocateBufferList(int width, int height, const char* format, int &size, int numBufs)
65{
66    LOG_FUNCTION_NAME;
67
68    CAMHAL_ASSERT(mIonFd != -1);
69
70    ///We allocate numBufs+1 because the last entry will be marked NULL to indicate end of array, which is used when freeing
71    ///the buffers
72    const uint numArrayEntriesC = (uint)(numBufs+1);
73
74    ///Allocate a buffer array
75    CameraBuffer *buffers = new CameraBuffer [numArrayEntriesC];
76    if(!buffers) {
77        CAMHAL_LOGEB("Allocation failed when creating buffers array of %d CameraBuffer elements", numArrayEntriesC);
78        goto error;
79    }
80
81    ///Initialize the array with zeros - this will help us while freeing the array in case of error
82    ///If a value of an array element is NULL, it means we didnt allocate it
83    memset(buffers, 0, sizeof(CameraBuffer) * numArrayEntriesC);
84
85    //2D Allocations are not supported currently
86    if(size != 0) {
87        struct ion_handle *handle;
88        int mmap_fd;
89        size_t stride;
90
91        ///1D buffers
92        for (int i = 0; i < numBufs; i++) {
93            unsigned char *data;
94            int ret = ion_alloc(mIonFd, size, 0, 1 << ION_HEAP_TYPE_CARVEOUT,
95                    &handle);
96            if((ret < 0) || ((int)handle == -ENOMEM)) {
97                ret = ion_alloc_tiler(mIonFd, (size_t)size, 1, TILER_PIXEL_FMT_PAGE,
98                OMAP_ION_HEAP_TILER_MASK, &handle, &stride);
99            }
100
101            if((ret < 0) || ((int)handle == -ENOMEM)) {
102                CAMHAL_LOGEB("FAILED to allocate ion buffer of size=%d. ret=%d(0x%x)", size, ret, ret);
103                goto error;
104            }
105
106            CAMHAL_LOGDB("Before mapping, handle = %p, nSize = %d", handle, size);
107            if ((ret = ion_map(mIonFd, handle, size, PROT_READ | PROT_WRITE, MAP_SHARED, 0,
108                          &data, &mmap_fd)) < 0) {
109                CAMHAL_LOGEB("Userspace mapping of ION buffers returned error %d", ret);
110                ion_free(mIonFd, handle);
111                goto error;
112            }
113
114            buffers[i].type = CAMERA_BUFFER_ION;
115            buffers[i].opaque = data;
116            buffers[i].mapped = data;
117            buffers[i].ion_handle = handle;
118            buffers[i].ion_fd = mIonFd;
119            buffers[i].fd = mmap_fd;
120            buffers[i].size = size;
121            buffers[i].format = CameraHal::getPixelFormatConstant(format);
122
123        }
124    }
125
126    LOG_FUNCTION_NAME_EXIT;
127
128    return buffers;
129
130error:
131
132    CAMHAL_LOGE("Freeing buffers already allocated after error occurred");
133    if(buffers)
134        freeBufferList(buffers);
135
136    if ( NULL != mErrorNotifier.get() )
137        mErrorNotifier->errorNotify(-ENOMEM);
138    LOG_FUNCTION_NAME_EXIT;
139
140    return NULL;
141}
142
143CameraBuffer* MemoryManager::getBufferList(int *numBufs) {
144    LOG_FUNCTION_NAME;
145    if (numBufs) *numBufs = -1;
146
147    return NULL;
148}
149
150//TODO: Get needed data to map tiler buffers
151//Return dummy data for now
152uint32_t * MemoryManager::getOffsets()
153{
154    LOG_FUNCTION_NAME;
155
156    LOG_FUNCTION_NAME_EXIT;
157
158    return NULL;
159}
160
161int MemoryManager::getFd()
162{
163    LOG_FUNCTION_NAME;
164
165    LOG_FUNCTION_NAME_EXIT;
166
167    return -1;
168}
169
170int MemoryManager::freeBufferList(CameraBuffer *buffers)
171{
172    status_t ret = NO_ERROR;
173    LOG_FUNCTION_NAME;
174
175    int i;
176
177    if(!buffers)
178        {
179        CAMHAL_LOGEA("NULL pointer passed to freebuffer");
180        LOG_FUNCTION_NAME_EXIT;
181        return BAD_VALUE;
182        }
183
184    i = 0;
185    while(buffers[i].type == CAMERA_BUFFER_ION)
186        {
187        if(buffers[i].size)
188            {
189            munmap(buffers[i].opaque, buffers[i].size);
190            close(buffers[i].fd);
191            ion_free(mIonFd, buffers[i].ion_handle);
192            }
193        else
194            {
195            CAMHAL_LOGEA("Not a valid Memory Manager buffer");
196            }
197        i++;
198        }
199
200    delete [] buffers;
201
202    LOG_FUNCTION_NAME_EXIT;
203    return ret;
204}
205
206status_t MemoryManager::setErrorHandler(ErrorNotifier *errorNotifier)
207{
208    status_t ret = NO_ERROR;
209
210    LOG_FUNCTION_NAME;
211
212    if ( NULL == errorNotifier )
213        {
214        CAMHAL_LOGEA("Invalid Error Notifier reference");
215        ret = -EINVAL;
216        }
217
218    if ( NO_ERROR == ret )
219        {
220        mErrorNotifier = errorNotifier;
221        }
222
223    LOG_FUNCTION_NAME_EXIT;
224
225    return ret;
226}
227
228} // namespace Camera
229} // namespace Ti
230
231
232/*--------------------MemoryManager Class ENDS here-----------------------------*/
233