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/*
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*/
#define LOG_TAG "CamPrvdr@2.4-virtual"
//#define LOG_NDEBUG 0
#include <log/log.h>
#include <regex>
#include <sys/inotify.h>
#include <errno.h>
#include <linux/videodev2.h>
#include <cutils/properties.h>
#include "VirtualCameraProviderImpl_2_4.h"
#include "VirtualCameraDevice_3_4.h"
#include <string>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
//#include <v4l2device.h>
#include "mediactl/mediactl.h"
#include "mediactl/mediactl-priv.h"
#include <linux/videodev2.h>
#define FILE_PATH_LEN 64
#define CAMS_NUM_MAX 2
#define FLASH_NUM_MAX 2
/* The media topology instance that describes video device and
* sub-device informations.
*
* @sd_isp_path, the isp sub-device path, e.g. /dev/v4l-subdev0
* @vd_params_path, the params video device path
* @vd_stats_path, the stats video device path
* @cams, multipe cameras can attache to isp, but only one can be active
* @sd_sensor_path, the sensor sub-device path
* @sd_lens_path, the lens sub-device path that attached to sensor
* @sd_flash_path, the flash sub-device path that attached to sensor,
* can be two or more.
* @link_enabled, the link status of this sensor
*/
#define MAX_MEDIA_DEV_NUM 10
struct rkisp_media_info {
char sd_isp_path[FILE_PATH_LEN];
char vd_params_path[FILE_PATH_LEN];
char vd_stats_path[FILE_PATH_LEN];
char sd_ispp_path[FILE_PATH_LEN];
char stream_cif_mipi_id0[FILE_PATH_LEN];
struct {
char sd_sensor_path[FILE_PATH_LEN];
char sd_lens_path[FILE_PATH_LEN];
char sd_flash_path[FLASH_NUM_MAX][FILE_PATH_LEN];
bool link_enabled;
char sensor_entity_name[FILE_PATH_LEN];
} cams[CAMS_NUM_MAX];
};
static int
rkisp_get_devname(struct media_device *device, const char *name, char *dev_name)
{
const char *devname;
media_entity *entity = NULL;
entity = media_get_entity_by_name(device, name, strlen(name));
if (!entity)
return -1;
devname = media_entity_get_devname(entity);
if (!devname) {
ALOGE("can't find %s device path!", name);
return -1;
}
strncpy(dev_name, devname, FILE_PATH_LEN);
ALOGD("get %s devname: %s\n", name, dev_name);
return 0;
}
static int
rkisp_enumrate_modules (struct media_device *device,struct rkisp_media_info *media_info)
{
int sensor_index = -1;
uint32_t nents, i;
const char* dev_name = NULL;
int active_sensor = -1;
;
nents = media_get_entities_count (device);
for (i = 0; i < nents; ++i) {
int module_idx = -1;
struct media_entity *e;
const struct media_entity_desc *ef;
const struct media_link *link;
e = media_get_entity(device, i);
ef = media_entity_get_info(e);
if (ef->type != MEDIA_ENT_T_V4L2_SUBDEV_SENSOR &&
ef->type != MEDIA_ENT_T_V4L2_SUBDEV_FLASH &&
ef->type != MEDIA_ENT_T_V4L2_SUBDEV_LENS)
continue;
if (ef->name[0] != 'm' && ef->name[3] != '_') {
ALOGE("sensor/lens/flash entity name format is incorrect,"
"pls check driver version !\n");
return -1;
}
/* Retrive the sensor index from sensor name,
* which is indicated by two characters after 'm',
* e.g. m00_b_ov13850 1-0010
* ^^, 00 is the module index
*/
module_idx = atoi(ef->name + 1);
//ALOGE("sensor:%s,module_idx:%d",ef->name,module_idx);
if (module_idx >= CAMS_NUM_MAX) {
ALOGE("multiple sensors more than two not supported, %s\n", ef->name);
continue;
}
if (sensor_index >= 0 && module_idx != sensor_index) {
continue;
}
dev_name = media_entity_get_devname (e);
switch (ef->type) {
case MEDIA_ENT_T_V4L2_SUBDEV_SENSOR:
strncpy(media_info->cams[module_idx].sd_sensor_path,
dev_name, FILE_PATH_LEN);
link = media_entity_get_link(e, 0);
if (link && (link->flags & MEDIA_LNK_FL_ENABLED)) {
media_info->cams[module_idx].link_enabled = true;
active_sensor = module_idx;
strcpy(media_info->cams[module_idx].sensor_entity_name, ef->name);
ALOGD("%s(%d) sensor_entity_name(%s)", __FUNCTION__, __LINE__, media_info->cams[module_idx].sensor_entity_name);
}
break;
case MEDIA_ENT_T_V4L2_SUBDEV_FLASH:
// TODO, support multiple flashes attached to one module
strncpy(media_info->cams[module_idx].sd_flash_path[0],
dev_name, FILE_PATH_LEN);
break;
case MEDIA_ENT_T_V4L2_SUBDEV_LENS:
strncpy(media_info->cams[module_idx].sd_lens_path,
dev_name, FILE_PATH_LEN);
break;
default:
break;
}
}
if (active_sensor < 0) {
ALOGE("Not sensor link is enabled, does sensor probe correctly?\n");
return -1;
}
return 0;
}
int get_media_info(const char* sensor_name,const char* dev_name) {
int ret = 0;
unsigned int i, index = 0;
char sys_path[64];
int find_sensor = 0;
int find_isp = 0;
int linked_sensor = -1;
struct media_device *device = NULL;
const struct media_device_info *info = NULL;
struct rkisp_media_info media_info;
int find_ispp = 0;
char model[64] = "\0";
while (index < MAX_MEDIA_DEV_NUM) {
info = NULL;
snprintf(sys_path, 64, "/dev/media%d", index++);
ALOGD("media : %s\n", sys_path);
if(access(sys_path,F_OK))
continue;
device = media_device_new(sys_path);
if (device == NULL) {
ALOGE("Failed to create media %s\n", sys_path);
continue;
}
ret = media_device_enumerate(device);
if (ret < 0) {
ALOGE("Failed to enumerate %s (%d)\n", sys_path, ret);
media_device_unref(device);
continue;
}
info = media_get_info(device);
/* Try Sensor */
if (find_sensor!=2) {
unsigned int nents = media_get_entities_count(device);
for (i = 0; i < nents; ++i) {
struct media_entity *entity = media_get_entity(device, i);
const struct media_entity_desc *desc = media_entity_get_info(entity);
unsigned int type = desc ->type;
if (MEDIA_ENT_T_V4L2_SUBDEV == (type & MEDIA_ENT_TYPE_MASK)) {
unsigned int subtype = type & MEDIA_ENT_SUBTYPE_MASK;
if (subtype == 1) {
ret = rkisp_enumrate_modules(device,&media_info);
if (!ret) {
linked_sensor = index;
find_sensor = 1;
if (info && !strncmp(info->driver, "rkcif", strlen("rkcif"))) {
strncpy(model, info->model, 64);
for (size_t i = 0; i < CAMS_NUM_MAX; i++)
{
if(strlen(media_info.cams[i].sensor_entity_name)>0){
ALOGD("%s:model:%s,info->model:%s",media_info.cams[i].sensor_entity_name,model, info->model);
if(strstr(media_info.cams[i].sensor_entity_name,sensor_name)!=NULL){
find_sensor = 2;
ret = rkisp_get_devname(device, "stream_cif_mipi_id0", media_info.stream_cif_mipi_id0);
memcpy((void*)dev_name,media_info.stream_cif_mipi_id0,strlen(media_info.stream_cif_mipi_id0)+1);
char compact_test[255]={0};
sprintf(compact_test,"/sys/devices/platform/%s/compact_test",model);
//write /sys/devices/platform/rkcif-mipi-lvds2/compact_test "0 0 0 0"
FILE *fp = fopen(compact_test,"wb+");
if(fp != NULL){
const char *compact_test_value="0 0 0 0";
ALOGD("write %s %s",compact_test,compact_test_value);
fwrite(compact_test_value,1,strlen(compact_test_value),fp);
fclose(fp);
}else{
ALOGE("failed to open:%s",compact_test);
}
}
}
}
}
}
}
}
if(find_sensor == 2){
break;
}
}
}
media_device_unref(device);
if(find_sensor == 2){
break;
}
}
return ret;
}
namespace android {
namespace hardware {
namespace camera {
namespace provider {
namespace V2_4 {
namespace implementation {
template struct VirCameraProvider<VirtualCameraProviderImpl_2_4>;
namespace {
// "device@<version>/external/<id>"
const std::regex kDeviceNameRE("device@([0-9]+\\.[0-9]+)/virtual/(.+)");
//const int kMaxDevicePathLen = 256;
const char* kDevicePath = "/dev/";
constexpr char kPrefix[] = "video";
constexpr int kPrefixLen = 5;
constexpr int kDevicePrefixLen = 5 + kPrefixLen;
bool matchDeviceName(int cameraIdOffset,
const hidl_string& deviceName, std::string* deviceVersion,
std::string* cameraDevicePath) {
#if 1
std::string deviceNameStd(deviceName.c_str());
std::smatch sm;
if (std::regex_match(deviceNameStd, sm, kDeviceNameRE)) {
if (deviceVersion != nullptr) {
*deviceVersion = sm[1];
//ALOGD("@%s,deviceVersion:%s",__FUNCTION__,(*deviceVersion).c_str());
}
if (cameraDevicePath != nullptr) {
*cameraDevicePath = "/dev/video" + std::to_string(std::stoi(sm[2]) - cameraIdOffset);
}
return true;
}
ALOGE("@%s,match Failed",__FUNCTION__);
return false;
#else
if (deviceVersion != nullptr) {
*deviceVersion = "0";
}
if (cameraDevicePath != nullptr) {
*cameraDevicePath = "/dev/video1";
}
return true;
#endif
}
} // anonymous namespace
VirtualCameraProviderImpl_2_4::VirtualCameraProviderImpl_2_4() :
mCfg(VirtualCameraConfig::loadFromCfg()),
mHotPlugThread(this) {
mHotPlugThread.run("VirCamHotPlug", PRIORITY_BACKGROUND);
mPreferredHal3MinorVersion =
property_get_int32("ro.vendor.camera.external.hal3TrebleMinorVersion", 4);
ALOGV("Preferred HAL 3 minor version is %d", mPreferredHal3MinorVersion);
switch(mPreferredHal3MinorVersion) {
case 4:
case 5:
case 6:
// OK
break;
default:
ALOGW("Unknown minor camera device HAL version %d in property "
"'camera.external.hal3TrebleMinorVersion', defaulting to 4",
mPreferredHal3MinorVersion);
mPreferredHal3MinorVersion = 4;
}
}
VirtualCameraProviderImpl_2_4::~VirtualCameraProviderImpl_2_4() {
mHotPlugThread.requestExit();
}
Return<Status> VirtualCameraProviderImpl_2_4::setCallback(
const sp<ICameraProviderCallback>& callback) {
{
Mutex::Autolock _l(mLock);
mCallbacks = callback;
}
if (mCallbacks == nullptr) {
return Status::OK;
}
// Send a callback for all devices to initialize
{
for (const auto& pair : mCameraStatusMap) {
mCallbacks->cameraDeviceStatusChange(pair.first, pair.second);
}
}
return Status::OK;
}
Return<void> VirtualCameraProviderImpl_2_4::getVendorTags(
ICameraProvider::getVendorTags_cb _hidl_cb) {
// No vendor tag support for USB camera
hidl_vec<VendorTagSection> zeroSections;
_hidl_cb(Status::OK, zeroSections);
return Void();
}
Return<void> VirtualCameraProviderImpl_2_4::getCameraIdList(
ICameraProvider::getCameraIdList_cb _hidl_cb) {
// External camera HAL always report 0 camera, and extra cameras
// are just reported via cameraDeviceStatusChange callbacks
hidl_vec<hidl_string> hidlDeviceNameList;
_hidl_cb(Status::OK, hidlDeviceNameList);
return Void();
}
Return<void> VirtualCameraProviderImpl_2_4::isSetTorchModeSupported(
ICameraProvider::isSetTorchModeSupported_cb _hidl_cb) {
// setTorchMode API is supported, though right now no external camera device
// has a flash unit.
_hidl_cb (Status::OK, true);
return Void();
}
Return<void> VirtualCameraProviderImpl_2_4::getCameraDeviceInterface_V1_x(
const hidl_string&,
ICameraProvider::getCameraDeviceInterface_V1_x_cb _hidl_cb) {
// External Camera HAL does not support HAL1
_hidl_cb(Status::OPERATION_NOT_SUPPORTED, nullptr);
return Void();
}
Return<void> VirtualCameraProviderImpl_2_4::getCameraDeviceInterface_V3_x(
const hidl_string& cameraDeviceName,
ICameraProvider::getCameraDeviceInterface_V3_x_cb _hidl_cb) {
std::string cameraDevicePath, deviceVersion;
bool match = matchDeviceName(mCfg.cameraIdOffset, cameraDeviceName,
&deviceVersion, &cameraDevicePath);
if (!match) {
_hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
return Void();
}
if (mCameraStatusMap.count(cameraDeviceName) == 0 ||
mCameraStatusMap[cameraDeviceName] != CameraDeviceStatus::PRESENT) {
_hidl_cb(Status::ILLEGAL_ARGUMENT, nullptr);
return Void();
}
sp<device::V3_4::virtuals::implementation::VirtualCameraDevice> deviceImpl;
switch (mPreferredHal3MinorVersion) {
case 4: {
ALOGV("Constructing v3.4 external camera device");
deviceImpl = new device::V3_4::virtuals::implementation::VirtualCameraDevice(
cameraDevicePath, mCfg);
break;
}
case 5: {
ALOGV("Constructing v3.5 external camera device");
// deviceImpl = new device::V3_5::implementation::ExternalCameraDevice(
// cameraDevicePath, mCfg);
break;
}
case 6: {
ALOGV("Constructing v3.6 external camera device");
// deviceImpl = new device::V3_6::implementation::ExternalCameraDevice(
// cameraDevicePath, mCfg);
break;
}
default:
ALOGE("%s: Unknown HAL minor version %d!", __FUNCTION__, mPreferredHal3MinorVersion);
_hidl_cb(Status::INTERNAL_ERROR, nullptr);
return Void();
}
if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
ALOGE("%s: camera device %s init failed!", __FUNCTION__, cameraDevicePath.c_str());
_hidl_cb(Status::INTERNAL_ERROR, nullptr);
return Void();
}
IF_ALOGV() {
deviceImpl->getInterface()->interfaceChain([](
::android::hardware::hidl_vec<::android::hardware::hidl_string> interfaceChain) {
ALOGV("Device interface chain:");
for (auto iface : interfaceChain) {
ALOGV(" %s", iface.c_str());
}
});
}
_hidl_cb (Status::OK, deviceImpl->getInterface());
return Void();
}
void VirtualCameraProviderImpl_2_4::addCamera(const char* devName) {
Mutex::Autolock _l(mLock);
std::string deviceName;
std::string cameraId = std::to_string(mCfg.cameraIdOffset +
std::atoi(devName + kDevicePrefixLen));
if (mPreferredHal3MinorVersion == 6) {
deviceName = std::string("device@3.6/virtual/") + cameraId;
} else if (mPreferredHal3MinorVersion == 5) {
deviceName = std::string("device@3.5/virtual/") + cameraId;
} else {
deviceName = std::string("device@3.4/virtual/") + cameraId;
}
ALOGD("@%s devName:%s,cameraId:%s,deviceName:%s",__FUNCTION__,devName,cameraId.c_str(),deviceName.c_str());
mCameraStatusMap[deviceName] = CameraDeviceStatus::PRESENT;
if (mCallbacks != nullptr) {
mCallbacks->cameraDeviceStatusChange(deviceName, CameraDeviceStatus::PRESENT);
}
}
void VirtualCameraProviderImpl_2_4::deviceAdded(const char* devName) {
#if 0
{
base::unique_fd fd(::open(devName, O_RDWR));
if (fd.get() < 0) {
ALOGE("%s open v4l2 device %s failed:%s", __FUNCTION__, devName, strerror(errno));
return;
}
struct v4l2_capability capability;
int ret = ioctl(fd.get(), VIDIOC_QUERYCAP, &capability);
if (ret < 0) {
ALOGE("%s v4l2 QUERYCAP %s failed", __FUNCTION__, devName);
return;
}
if (!((capability.device_caps & V4L2_CAP_VIDEO_CAPTURE) || (capability.device_caps & V4L2_CAP_VIDEO_CAPTURE_MPLANE))) {
ALOGW("%s wpzz test device %s does not support VIDEO_CAPTURE", __FUNCTION__, devName);
return;
}
}
#endif
// See if we can initialize VirtualCameraDevice correctly
sp<device::V3_4::virtuals::implementation::VirtualCameraDevice> deviceImpl =
new device::V3_4::virtuals::implementation::VirtualCameraDevice(devName, mCfg);
if (deviceImpl == nullptr || deviceImpl->isInitFailed()) {
ALOGW("%s: Attempt to init camera device %s failed!", __FUNCTION__, devName);
return;
}
deviceImpl.clear();
addCamera(devName);
return;
}
void VirtualCameraProviderImpl_2_4::deviceRemoved(const char* devName) {
Mutex::Autolock _l(mLock);
std::string deviceName;
std::string cameraId = std::to_string(mCfg.cameraIdOffset +
std::atoi(devName + kDevicePrefixLen));
cameraId= devName;
//cameraId= "888";
if (mPreferredHal3MinorVersion == 6) {
deviceName = std::string("device@3.6/virtual/") + cameraId;
} else if (mPreferredHal3MinorVersion == 5) {
deviceName = std::string("device@3.5/virtual/") + cameraId;
} else {
deviceName = std::string("device@3.4/virtual/") + cameraId;
}
if (mCameraStatusMap.find(deviceName) != mCameraStatusMap.end()) {
mCameraStatusMap.erase(deviceName);
if (mCallbacks != nullptr) {
mCallbacks->cameraDeviceStatusChange(deviceName, CameraDeviceStatus::NOT_PRESENT);
}
} else {
ALOGE("%s: cannot find camera device %s", __FUNCTION__, devName);
}
}
VirtualCameraProviderImpl_2_4::HotplugThread::HotplugThread(
VirtualCameraProviderImpl_2_4* parent) :
Thread(/*canCallJava*/false),
mParent(parent),
mInternalDevices(parent->mCfg.mInternalDevices) {}
VirtualCameraProviderImpl_2_4::HotplugThread::~HotplugThread() {}
bool VirtualCameraProviderImpl_2_4::HotplugThread::threadLoop() {
// Find existing /dev/video* devices
DIR* devdir = opendir(kDevicePath);
if(devdir == 0) {
ALOGE("%s: cannot open %s! Exiting threadloop", __FUNCTION__, kDevicePath);
return false;
}
char dev_name[256]={0};
char sub_dev_name[256]={0};
get_media_info(mParent->mCfg.snsName.c_str(),dev_name);
if (strlen(dev_name)>0){
mParent->deviceAdded(dev_name);
int subid =std::atoi(dev_name + kDevicePrefixLen)+1;
sprintf(sub_dev_name,"/dev/video%d",subid);
mParent->deviceAdded(sub_dev_name);
}
closedir(devdir);
// Watch new video devices
mINotifyFD = inotify_init();
if (mINotifyFD < 0) {
ALOGE("%s: inotify init failed! Exiting threadloop", __FUNCTION__);
return true;
}
mWd = inotify_add_watch(mINotifyFD, kDevicePath, IN_CREATE | IN_DELETE);
if (mWd < 0) {
ALOGE("%s: inotify add watch failed! Exiting threadloop", __FUNCTION__);
return true;
}
ALOGI("%s start monitoring new V4L2 devices", __FUNCTION__);
bool done = false;
char eventBuf[512];
while (!done) {
int offset = 0;
int ret = read(mINotifyFD, eventBuf, sizeof(eventBuf));
if (ret >= (int)sizeof(struct inotify_event)) {
while (offset < ret) {
struct inotify_event* event = (struct inotify_event*)&eventBuf[offset];
if (event->wd == mWd) {
if (!strncmp(kPrefix, event->name, kPrefixLen)) {
std::string deviceId(event->name + kPrefixLen);
if (mInternalDevices.count(deviceId) == 0) {
}
}
}
offset += sizeof(struct inotify_event) + event->len;
}
}
}
return true;
}
} // namespace implementation
} // namespace V2_4
} // namespace provider
} // namespace camera
} // namespace hardware
} // namespace android
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