1/*
2** Copyright (c) 2011-2012 Code Aurora Forum. All rights reserved.
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/*#error uncomment this for compiler test!*/
18
19//#define LOG_NDEBUG 0
20#define LOG_NIDEBUG 0
21#define LOG_TAG "QCameraHWI_Mem"
22#include <utils/Log.h>
23
24#include <utils/Errors.h>
25#include <utils/threads.h>
26#include <binder/MemoryHeapPmem.h>
27#include <utils/String16.h>
28#include <sys/types.h>
29#include <sys/stat.h>
30#include <unistd.h>
31#include <fcntl.h>
32#include <cutils/properties.h>
33#include <math.h>
34#if HAVE_ANDROID_OS
35#include <linux/android_pmem.h>
36#endif
37#include <linux/ioctl.h>
38#include <camera/CameraParameters.h>
39#include <media/mediarecorder.h>
40#include <gralloc_priv.h>
41
42#include "QCameraHWI_Mem.h"
43
44#define CAMERA_HAL_UNUSED(expr) do { (void)(expr); } while (0)
45
46/* QCameraHardwareInterface class implementation goes here*/
47/* following code implement the contol logic of this class*/
48
49namespace android {
50
51
52static bool register_buf(int size,
53                         int frame_size,
54                         int cbcr_offset,
55                         int yoffset,
56                         int pmempreviewfd,
57                         uint32_t offset,
58                         uint8_t *buf,
59                         int pmem_type,
60                         bool vfe_can_write,
61                         bool register_buffer = true);
62
63#if 0
64MMCameraDL::MMCameraDL(){
65    LOGV("MMCameraDL: E");
66    libmmcamera = NULL;
67#if DLOPEN_LIBMMCAMERA
68    libmmcamera = ::dlopen("liboemcamera.so", RTLD_NOW);
69#endif
70    LOGV("Open MM camera DL libeomcamera loaded at %p ", libmmcamera);
71    LOGV("MMCameraDL: X");
72}
73
74void * MMCameraDL::pointer(){
75    return libmmcamera;
76}
77
78MMCameraDL::~MMCameraDL(){
79    LOGV("~MMCameraDL: E");
80    LINK_mm_camera_destroy();
81    if (libmmcamera != NULL) {
82        ::dlclose(libmmcamera);
83        LOGV("closed MM Camera DL ");
84    }
85    libmmcamera = NULL;
86    LOGV("~MMCameraDL: X");
87}
88
89
90wp<MMCameraDL> MMCameraDL::instance;
91Mutex MMCameraDL::singletonLock;
92
93
94sp<MMCameraDL> MMCameraDL::getInstance(){
95    Mutex::Autolock instanceLock(singletonLock);
96    sp<MMCameraDL> mmCamera = instance.promote();
97    if(mmCamera == NULL){
98        mmCamera = new MMCameraDL();
99        instance = mmCamera;
100    }
101    return mmCamera;
102}
103#endif
104
105MemPool::MemPool(int buffer_size, int num_buffers,
106                                         int frame_size,
107                                         const char *name) :
108    mBufferSize(buffer_size),
109    mNumBuffers(num_buffers),
110    mFrameSize(frame_size),
111    mBuffers(NULL), mName(name)
112{
113    int page_size_minus_1 = getpagesize() - 1;
114    mAlignedBufferSize = (buffer_size + page_size_minus_1) & (~page_size_minus_1);
115}
116
117void MemPool::completeInitialization()
118{
119    // If we do not know how big the frame will be, we wait to allocate
120    // the buffers describing the individual frames until we do know their
121    // size.
122
123    if (mFrameSize > 0) {
124        mBuffers = new sp<MemoryBase>[mNumBuffers];
125        for (int i = 0; i < mNumBuffers; i++) {
126            mBuffers[i] = new
127                MemoryBase(mHeap,
128                           i * mAlignedBufferSize,
129                           mFrameSize);
130        }
131    }
132}
133
134AshmemPool::AshmemPool(int buffer_size, int num_buffers,
135                                               int frame_size,
136                                               const char *name) :
137    MemPool(buffer_size,
138                                    num_buffers,
139                                    frame_size,
140                                    name)
141{
142    LOGV("constructing MemPool %s backed by ashmem: "
143         "%d frames @ %d uint8_ts, "
144         "buffer size %d",
145         mName,
146         num_buffers, frame_size, buffer_size);
147
148    int page_mask = getpagesize() - 1;
149    int ashmem_size = buffer_size * num_buffers;
150    ashmem_size += page_mask;
151    ashmem_size &= ~page_mask;
152
153    mHeap = new MemoryHeapBase(ashmem_size);
154
155    completeInitialization();
156}
157
158static bool register_buf(int size,
159                         int frame_size,
160                         int cbcr_offset,
161                         int yoffset,
162                         int pmempreviewfd,
163                         uint32_t offset,
164                         uint8_t *buf,
165                         int pmem_type,
166                         bool vfe_can_write,
167                         bool register_buffer)
168{
169    struct msm_pmem_info pmemBuf;
170    CAMERA_HAL_UNUSED(frame_size);
171
172    pmemBuf.type     = pmem_type;
173    pmemBuf.fd       = pmempreviewfd;
174    pmemBuf.offset   = offset;
175    pmemBuf.len      = size;
176    pmemBuf.vaddr    = buf;
177    pmemBuf.y_off    = yoffset;
178    pmemBuf.cbcr_off = cbcr_offset;
179
180    pmemBuf.active   = vfe_can_write;
181
182    LOGV("register_buf:  reg = %d buffer = %p",
183         !register_buffer, buf);
184    /*TODO*/
185    /*if(native_start_ops(register_buffer ? CAMERA_OPS_REGISTER_BUFFER :
186        CAMERA_OPS_UNREGISTER_BUFFER ,(void *)&pmemBuf) < 0) {
187         LOGE("register_buf: MSM_CAM_IOCTL_(UN)REGISTER_PMEM  error %s",
188               strerror(errno));
189         return false;
190         }*/
191
192    return true;
193
194}
195
196#if 0
197bool register_record_buffers(bool register_buffer) {
198    LOGI("%s: (%d) E", __FUNCTION__, register_buffer);
199    struct msm_pmem_info pmemBuf;
200
201    for (int cnt = 0; cnt < VIDEO_BUFFER_COUNT; ++cnt) {
202        pmemBuf.type     = MSM_PMEM_VIDEO;
203        pmemBuf.fd       = mRecordHeap->mHeap->getHeapID();
204        pmemBuf.offset   = mRecordHeap->mAlignedBufferSize * cnt;
205        pmemBuf.len      = mRecordHeap->mBufferSize;
206        pmemBuf.vaddr    = (uint8_t *)mRecordHeap->mHeap->base() + mRecordHeap->mAlignedBufferSize * cnt;
207        pmemBuf.y_off    = 0;
208        pmemBuf.cbcr_off = recordframes[0].cbcr_off;
209        if(register_buffer == true) {
210            pmemBuf.active   = (cnt<ACTIVE_VIDEO_BUFFERS);
211            if( (mVpeEnabled) && (cnt == kRecordBufferCount-1)) {
212                pmemBuf.type = MSM_PMEM_VIDEO_VPE;
213                pmemBuf.active = 1;
214            }
215        } else {
216            pmemBuf.active   = false;
217        }
218
219        LOGV("register_buf:  reg = %d buffer = %p", !register_buffer,
220          (void *)pmemBuf.vaddr);
221        if(native_start_ops(register_buffer ? CAMERA_OPS_REGISTER_BUFFER :
222                CAMERA_OPS_UNREGISTER_BUFFER ,(void *)&pmemBuf) < 0) {
223            LOGE("register_buf: MSM_CAM_IOCTL_(UN)REGISTER_PMEM  error %s",
224                strerror(errno));
225            return false;
226        }
227    }
228    return true;
229}
230#endif
231PmemPool::PmemPool(const char *pmem_pool,
232                                           int flags,
233                                           int pmem_type,
234                                           int buffer_size, int num_buffers,
235                                           int frame_size, int cbcr_offset,
236                                           int yOffset, const char *name) :
237    MemPool(buffer_size,num_buffers,frame_size,name),
238    mPmemType(pmem_type),
239    mCbCrOffset(cbcr_offset),
240    myOffset(yOffset)
241{
242    LOGI("constructing MemPool %s backed by pmem pool %s: "
243         "%d frames @ %d bytes, buffer size %d",
244         mName,
245         pmem_pool, num_buffers, frame_size,
246         buffer_size);
247
248    //mMMCameraDLRef = MMCameraDL::getInstance();
249
250
251    // Make a new mmap'ed heap that can be shared across processes.
252    // mAlignedBufferSize is already in 4k aligned. (do we need total size necessary to be in power of 2??)
253    mAlignedSize = mAlignedBufferSize * num_buffers;
254
255    sp<MemoryHeapBase> masterHeap =
256        new MemoryHeapBase(pmem_pool, mAlignedSize, flags);
257
258    if (masterHeap->getHeapID() < 0) {
259        LOGE("failed to construct master heap for pmem pool %s", pmem_pool);
260        masterHeap.clear();
261        return;
262    }
263
264    sp<MemoryHeapPmem> pmemHeap = new MemoryHeapPmem(masterHeap, flags);
265    if (pmemHeap->getHeapID() >= 0) {
266        pmemHeap->slap();
267        masterHeap.clear();
268        mHeap = pmemHeap;
269        pmemHeap.clear();
270
271        mFd = mHeap->getHeapID();
272        if (::ioctl(mFd, PMEM_GET_SIZE, &mSize)) {
273            LOGE("pmem pool %s ioctl(PMEM_GET_SIZE) error %s (%d)",
274                 pmem_pool,
275                 ::strerror(errno), errno);
276            mHeap.clear();
277            return;
278        }
279
280        LOGE("pmem pool %s ioctl(fd = %d, PMEM_GET_SIZE) is %ld",
281             pmem_pool,
282             mFd,
283             mSize.len);
284        LOGE("mBufferSize=%d, mAlignedBufferSize=%d\n", mBufferSize, mAlignedBufferSize);
285
286#if 0
287        // Unregister preview buffers with the camera drivers.  Allow the VFE to write
288        // to all preview buffers except for the last one.
289        // Only Register the preview, snapshot and thumbnail buffers with the kernel.
290        if( (strcmp("postview", mName) != 0) ){
291            int num_buf = num_buffers;
292            if(!strcmp("preview", mName)) num_buf = kPreviewBufferCount;
293            LOGD("num_buffers = %d", num_buf);
294            for (int cnt = 0; cnt < num_buf; ++cnt) {
295                int active = 1;
296                if(pmem_type == MSM_PMEM_VIDEO){
297                     active = (cnt<ACTIVE_VIDEO_BUFFERS);
298                     //When VPE is enabled, set the last record
299                     //buffer as active and pmem type as PMEM_VIDEO_VPE
300                     //as this is a requirement from VPE operation.
301                     //No need to set this pmem type to VIDEO_VPE while unregistering,
302                     //because as per camera stack design: "the VPE AXI is also configured
303                     //when VFE is configured for VIDEO, which is as part of preview
304                     //initialization/start. So during this VPE AXI config camera stack
305                     //will lookup the PMEM_VIDEO_VPE buffer and give it as o/p of VPE and
306                     //change it's type to PMEM_VIDEO".
307                     if( (mVpeEnabled) && (cnt == kRecordBufferCount-1)) {
308                         active = 1;
309                         pmem_type = MSM_PMEM_VIDEO_VPE;
310                     }
311                     LOGV(" pmempool creating video buffers : active %d ", active);
312                }
313                else if (pmem_type == MSM_PMEM_PREVIEW){
314                    active = (cnt < ACTIVE_PREVIEW_BUFFERS);
315                }
316                else if ((pmem_type == MSM_PMEM_MAINIMG)
317                     || (pmem_type == MSM_PMEM_THUMBNAIL)){
318                    active = (cnt < ACTIVE_ZSL_BUFFERS);
319                }
320                register_buf(mBufferSize,
321                         mFrameSize, mCbCrOffset, myOffset,
322                         mHeap->getHeapID(),
323                         mAlignedBufferSize * cnt,
324                         (uint8_t *)mHeap->base() + mAlignedBufferSize * cnt,
325                         pmem_type,
326                         active);
327            }
328        }
329#endif
330        completeInitialization();
331    }
332    else LOGE("pmem pool %s error: could not create master heap!",
333              pmem_pool);
334    LOGI("%s: (%s) X ", __FUNCTION__, mName);
335}
336
337PmemPool::~PmemPool()
338{
339    LOGI("%s: %s E", __FUNCTION__, mName);
340#if 0
341    if (mHeap != NULL) {
342        // Unregister preview buffers with the camera drivers.
343        //  Only Unregister the preview, snapshot and thumbnail
344        //  buffers with the kernel.
345        if( (strcmp("postview", mName) != 0) ){
346            int num_buffers = mNumBuffers;
347            if(!strcmp("preview", mName)) num_buffers = PREVIEW_BUFFER_COUNT;
348            for (int cnt = 0; cnt < num_buffers; ++cnt) {
349                register_buf(mBufferSize,
350                         mFrameSize,
351                         mCbCrOffset,
352                         myOffset,
353                         mHeap->getHeapID(),
354                         mAlignedBufferSize * cnt,
355                         (uint8_t *)mHeap->base() + mAlignedBufferSize * cnt,
356                         mPmemType,
357                         false,
358                         false /* unregister */);
359            }
360        }
361    }
362    mMMCameraDLRef.clear();
363#endif
364    LOGI("%s: %s X", __FUNCTION__, mName);
365}
366MemPool::~MemPool()
367{
368    LOGV("destroying MemPool %s", mName);
369    if (mFrameSize > 0)
370        delete [] mBuffers;
371    mHeap.clear();
372    LOGV("destroying MemPool %s completed", mName);
373}
374
375
376status_t MemPool::dump(int fd, const Vector<String16>& args) const
377{
378    const size_t SIZE = 256;
379    char buffer[SIZE];
380    String8 result;
381    CAMERA_HAL_UNUSED(args);
382    snprintf(buffer, 255, "QualcommCameraHardware::AshmemPool::dump\n");
383    result.append(buffer);
384    if (mName) {
385        snprintf(buffer, 255, "mem pool name (%s)\n", mName);
386        result.append(buffer);
387    }
388    if (mHeap != 0) {
389        snprintf(buffer, 255, "heap base(%p), size(%d), flags(%d), device(%s)\n",
390                 mHeap->getBase(), mHeap->getSize(),
391                 mHeap->getFlags(), mHeap->getDevice());
392        result.append(buffer);
393    }
394    snprintf(buffer, 255,
395             "buffer size (%d), number of buffers (%d), frame size(%d)",
396             mBufferSize, mNumBuffers, mFrameSize);
397    result.append(buffer);
398    write(fd, result.string(), result.size());
399    return NO_ERROR;
400}
401
402};
403