initial commit

Change-Id: I8f7a7eeece0e516efa486b77e9d97805c0e65d3e
Signed-off-by: Iliyan Malchev <malchev@google.com>

1 files changed, 676 insertions, 0 deletions

diff --git a/camera/CameraHal_Module.cpp b/camera/CameraHal_Module.cpp
new file mode 100644
index 0000000..cf3ec60
--- /dev/null
+++ b/camera/CameraHal_Module.cpp
@@ -0,0 +1,676 @@
+/*
+ * 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.
+ */
+
+/**
+* @file CameraHal.cpp
+*
+* This file maps the Camera Hardware Interface to V4L2.
+*
+*/
+
+#define LOG_TAG "CameraHAL"
+
+#include "CameraHal.h"
+#include "CameraProperties.h"
+#include "TICameraParameters.h"
+
+
+static android::CameraProperties gCameraProperties;
+static android::CameraHal* gCameraHals[MAX_CAMERAS_SUPPORTED];
+
+static int camera_device_open(const hw_module_t* module, const char* name,
+                hw_device_t** device);
+static int camera_device_close(hw_device_t* device);
+static int camera_get_number_of_cameras(void);
+static int camera_get_camera_info(int camera_id, struct camera_info *info);
+
+static struct hw_module_methods_t camera_module_methods = {
+        open: camera_device_open
+};
+
+camera_module_t HAL_MODULE_INFO_SYM = {
+    common: {
+         tag: HARDWARE_MODULE_TAG,
+         version_major: 1,
+         version_minor: 0,
+         id: CAMERA_HARDWARE_MODULE_ID,
+         name: "TI OMAP CameraHal Module",
+         author: "TI",
+         methods: &camera_module_methods,
+         dso: NULL, /* remove compilation warnings */
+         reserved: {0}, /* remove compilation warnings */
+    },
+    get_number_of_cameras: camera_get_number_of_cameras,
+    get_camera_info: camera_get_camera_info,
+};
+
+typedef struct ti_camera_device {
+    camera_device_t base;
+    /* TI specific "private" data can go here (base.priv) */
+    int cameraid;
+} ti_camera_device_t;
+
+
+/*******************************************************************
+ * implementation of camera_device_ops functions
+ *******************************************************************/
+
+int camera_set_preview_window(struct camera_device * device,
+        struct preview_stream_ops *window)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->setPreviewWindow(window);
+
+    return rv;
+}
+
+void camera_set_callbacks(struct camera_device * device,
+        camera_notify_callback notify_cb,
+        camera_data_callback data_cb,
+        camera_data_timestamp_callback data_cb_timestamp,
+        camera_request_memory get_memory,
+        void *user)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->setCallbacks(notify_cb, data_cb, data_cb_timestamp, get_memory, user);
+}
+
+void camera_enable_msg_type(struct camera_device * device, int32_t msg_type)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->enableMsgType(msg_type);
+}
+
+void camera_disable_msg_type(struct camera_device * device, int32_t msg_type)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->disableMsgType(msg_type);
+}
+
+int camera_msg_type_enabled(struct camera_device * device, int32_t msg_type)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return 0;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    return gCameraHals[ti_dev->cameraid]->msgTypeEnabled(msg_type);
+}
+
+int camera_start_preview(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->startPreview();
+
+    return rv;
+}
+
+void camera_stop_preview(struct camera_device * device)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->stopPreview();
+}
+
+int camera_preview_enabled(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->previewEnabled();
+    return rv;
+}
+
+int camera_store_meta_data_in_buffers(struct camera_device * device, int enable)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    //  TODO: meta data buffer not current supported
+    rv = gCameraHals[ti_dev->cameraid]->storeMetaDataInBuffers(enable);
+    return rv;
+    //return enable ? android::INVALID_OPERATION: android::OK;
+}
+
+int camera_start_recording(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->startRecording();
+    return rv;
+}
+
+void camera_stop_recording(struct camera_device * device)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->stopRecording();
+}
+
+int camera_recording_enabled(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->recordingEnabled();
+    return rv;
+}
+
+void camera_release_recording_frame(struct camera_device * device,
+                const void *opaque)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->releaseRecordingFrame(opaque);
+}
+
+int camera_auto_focus(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->autoFocus();
+    return rv;
+}
+
+int camera_cancel_auto_focus(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->cancelAutoFocus();
+    return rv;
+}
+
+int camera_take_picture(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->takePicture();
+    return rv;
+}
+
+int camera_cancel_picture(struct camera_device * device)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->cancelPicture();
+    return rv;
+}
+
+int camera_set_parameters(struct camera_device * device, const char *params)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->setParameters(params);
+    return rv;
+}
+
+char* camera_get_parameters(struct camera_device * device)
+{
+    char* param = NULL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return NULL;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    param = gCameraHals[ti_dev->cameraid]->getParameters();
+
+    return param;
+}
+
+static void camera_put_parameters(struct camera_device *device, char *parms)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->putParameters(parms);
+}
+
+int camera_send_command(struct camera_device * device,
+            int32_t cmd, int32_t arg1, int32_t arg2)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->sendCommand(cmd, arg1, arg2);
+    return rv;
+}
+
+void camera_release(struct camera_device * device)
+{
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if(!device)
+        return;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    gCameraHals[ti_dev->cameraid]->release();
+}
+
+int camera_dump(struct camera_device * device, int fd)
+{
+    int rv = -EINVAL;
+    ti_camera_device_t* ti_dev = NULL;
+
+    if(!device)
+        return rv;
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    rv = gCameraHals[ti_dev->cameraid]->dump(fd);
+    return rv;
+}
+
+extern "C" void heaptracker_free_leaked_memory(void);
+
+int camera_device_close(hw_device_t* device)
+{
+    int ret = 0;
+    ti_camera_device_t* ti_dev = NULL;
+
+    LOGV("%s", __FUNCTION__);
+
+    if (!device) {
+        ret = -EINVAL;
+        goto done;
+    }
+
+    ti_dev = (ti_camera_device_t*) device;
+
+    if (gCameraHals[ti_dev->cameraid]) {
+        delete gCameraHals[ti_dev->cameraid];
+        gCameraHals[ti_dev->cameraid] = NULL;
+    }
+
+    if (ti_dev->base.ops) {
+        free(ti_dev->base.ops);
+    }
+    free(ti_dev);
+
+done:
+#ifdef HEAPTRACKER
+    heaptracker_free_leaked_memory();
+#endif
+    return ret;
+}
+
+/*******************************************************************
+ * implementation of camera_module functions
+ *******************************************************************/
+
+/* open device handle to one of the cameras
+ *
+ * assume camera service will keep singleton of each camera
+ * so this function will always only be called once per camera instance
+ */
+
+int camera_device_open(const hw_module_t* module, const char* name,
+                hw_device_t** device)
+{
+    int rv = -EINVAL;
+    int num_cameras = 0;
+    int cameraid;
+    ti_camera_device_t* camera_device = NULL;
+    camera_device_ops_t* camera_ops = NULL;
+    android::CameraHal* camera = NULL;
+    android::CameraProperties::Properties* properties = NULL;
+
+    LOGI("camera_device open");
+
+    if (name != NULL) {
+        cameraid = atoi(name);
+        num_cameras = gCameraProperties.camerasSupported();
+
+        if(cameraid > num_cameras)
+        {
+            LOGE("camera service provided cameraid out of bounds, "
+                    "cameraid = %d, num supported = %d",
+                    cameraid, num_cameras);
+            goto fail;
+        }
+
+        camera_device = (ti_camera_device_t*)malloc(sizeof(*camera_device));
+        if(!camera_device)
+        {
+            LOGE("camera_device allocation fail");
+            rv = -ENOMEM;
+            goto fail;
+        }
+
+        camera_ops = (camera_device_ops_t*)malloc(sizeof(*camera_ops));
+        if(!camera_ops)
+        {
+            LOGE("camera_ops allocation fail");
+            rv = -ENOMEM;
+            goto fail;
+        }
+
+        memset(camera_device, 0, sizeof(*camera_device));
+        memset(camera_ops, 0, sizeof(*camera_ops));
+
+        camera_device->base.common.tag = HARDWARE_DEVICE_TAG;
+        camera_device->base.common.version = 0;
+        camera_device->base.common.module = (hw_module_t *)(module);
+        camera_device->base.common.close = camera_device_close;
+        camera_device->base.ops = camera_ops;
+
+        camera_ops->set_preview_window = camera_set_preview_window;
+        camera_ops->set_callbacks = camera_set_callbacks;
+        camera_ops->enable_msg_type = camera_enable_msg_type;
+        camera_ops->disable_msg_type = camera_disable_msg_type;
+        camera_ops->msg_type_enabled = camera_msg_type_enabled;
+        camera_ops->start_preview = camera_start_preview;
+        camera_ops->stop_preview = camera_stop_preview;
+        camera_ops->preview_enabled = camera_preview_enabled;
+        camera_ops->store_meta_data_in_buffers = camera_store_meta_data_in_buffers;
+        camera_ops->start_recording = camera_start_recording;
+        camera_ops->stop_recording = camera_stop_recording;
+        camera_ops->recording_enabled = camera_recording_enabled;
+        camera_ops->release_recording_frame = camera_release_recording_frame;
+        camera_ops->auto_focus = camera_auto_focus;
+        camera_ops->cancel_auto_focus = camera_cancel_auto_focus;
+        camera_ops->take_picture = camera_take_picture;
+        camera_ops->cancel_picture = camera_cancel_picture;
+        camera_ops->set_parameters = camera_set_parameters;
+        camera_ops->get_parameters = camera_get_parameters;
+        camera_ops->put_parameters = camera_put_parameters;
+        camera_ops->send_command = camera_send_command;
+        camera_ops->release = camera_release;
+        camera_ops->dump = camera_dump;
+
+        *device = &camera_device->base.common;
+
+        // -------- TI specific stuff --------
+
+        camera_device->cameraid = cameraid;
+
+        if(gCameraProperties.getProperties(cameraid, &properties) < 0)
+        {
+            LOGE("Couldn't get camera properties");
+            rv = -ENOMEM;
+            goto fail;
+        }
+
+        camera = new android::CameraHal(cameraid);
+
+        if(!camera)
+        {
+            LOGE("Couldn't create instance of CameraHal class");
+            rv = -ENOMEM;
+            goto fail;
+        }
+
+        if(properties && (camera->initialize(properties) != android::NO_ERROR))
+        {
+            LOGE("Couldn't initialize camera instance");
+            rv = -ENODEV;
+            goto fail;
+        }
+
+        gCameraHals[cameraid] = camera;
+    }
+
+    return rv;
+
+fail:
+
+    if(camera_device)
+        free(camera_device);
+    if(camera_ops)
+        free(camera_ops);
+    if(camera)
+        delete camera;
+
+    return rv;
+}
+
+int camera_get_number_of_cameras(void)
+{
+    int num_cameras = MAX_CAMERAS_SUPPORTED;
+
+    // TODO(XXX): Ducati is not loaded yet when camera service gets here
+    //  Lets revisit this later to see if we can somehow get this working
+#if 0
+    // this going to be the first call from camera service
+    // initialize camera properties here...
+    if(gCameraProperties.initialize() != android::NO_ERROR)
+    {
+        CAMHAL_LOGEA("Unable to create or initialize CameraProperties");
+        return NULL;
+    }
+
+    num_cameras = gCameraProperties.camerasSupported();
+#endif
+
+    return num_cameras;
+}
+
+int camera_get_camera_info(int camera_id, struct camera_info *info)
+{
+    int rv = 0;
+    int face_value = CAMERA_FACING_BACK;
+    int orientation = 0;
+    const char *valstr = NULL;
+    android::CameraProperties::Properties* properties = NULL;
+
+    // this going to be the first call from camera service
+    // initialize camera properties here...
+    if(gCameraProperties.initialize() != android::NO_ERROR)
+    {
+        CAMHAL_LOGEA("Unable to create or initialize CameraProperties");
+        return NULL;
+    }
+
+    //Get camera properties for camera index
+    if(gCameraProperties.getProperties(camera_id, &properties) < 0)
+    {
+        LOGE("Couldn't get camera properties");
+        rv = -EINVAL;
+        goto end;
+    }
+
+    if(properties)
+    {
+        valstr = properties->get(android::CameraProperties::FACING_INDEX);
+        if(valstr != NULL)
+        {
+            if (strcmp(valstr, (const char *) android::TICameraParameters::FACING_FRONT) == 0)
+            {
+                face_value = CAMERA_FACING_FRONT;
+            }
+            else if (strcmp(valstr, (const char *) android::TICameraParameters::FACING_BACK) == 0)
+            {
+                face_value = CAMERA_FACING_BACK;
+            }
+         }
+
+         valstr = properties->get(android::CameraProperties::ORIENTATION_INDEX);
+         if(valstr != NULL)
+         {
+             orientation = atoi(valstr);
+         }
+    }
+    else
+    {
+        CAMHAL_LOGEB("getProperties() returned a NULL property set for Camera id %d", camera_id);
+    }
+
+    info->facing = face_value;
+    info->orientation = orientation;
+
+end:
+    return rv;
+}
+
+
+
+
+