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authorDaniel Hillenbrand <daniel.hillenbrand@codeworkx.de>2012-07-25 04:32:16 +0200
committerDaniel Hillenbrand <daniel.hillenbrand@codeworkx.de>2012-07-25 04:32:16 +0200
commit51841ab0c58201c6c45ca22ceac30f1229213f7d (patch)
treea41a43753b458be8976d7684c2741b249d4fc33a /camera
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initial commit
Diffstat (limited to 'camera')
-rw-r--r--camera/Android.mk15
-rw-r--r--camera/CameraWrapper.cpp585
2 files changed, 600 insertions, 0 deletions
diff --git a/camera/Android.mk b/camera/Android.mk
new file mode 100644
index 0000000..46cce24
--- /dev/null
+++ b/camera/Android.mk
@@ -0,0 +1,15 @@
+LOCAL_PATH := $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ CameraWrapper.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libhardware liblog libcamera_client libutils
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_MODULE := camera.$(TARGET_BOARD_PLATFORM)
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
+#include $(BUILD_HEAPTRACKED_SHARED_LIBRARY)
diff --git a/camera/CameraWrapper.cpp b/camera/CameraWrapper.cpp
new file mode 100644
index 0000000..f91604a
--- /dev/null
+++ b/camera/CameraWrapper.cpp
@@ -0,0 +1,585 @@
+/*
+ * Copyright (C) 2012, The CyanogenMod 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.
+ */
+
+/**
+* @file CameraWrapper.cpp
+*
+* This file wraps a vendor camera module.
+*
+*/
+
+
+#define LOG_NDEBUG 0
+//#define LOG_PARAMETERS
+
+#define LOG_TAG "CameraWrapper"
+#include <cutils/log.h>
+
+#include <utils/threads.h>
+#include <utils/String8.h>
+#include <hardware/hardware.h>
+#include <hardware/camera.h>
+#include <camera/Camera.h>
+#include <camera/CameraParameters.h>
+
+static android::Mutex gCameraWrapperLock;
+static camera_module_t *gVendorModule = 0;
+
+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: "Exynos4x12 Camera Wrapper",
+ author: "Teamhacksung <info@teamhacksung.org>",
+ 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 wrapper_camera_device {
+ camera_device_t base;
+ int id;
+ camera_device_t *vendor;
+} wrapper_camera_device_t;
+
+#define VENDOR_CALL(device, func, ...) ({ \
+ wrapper_camera_device_t *__wrapper_dev = (wrapper_camera_device_t*) device; \
+ __wrapper_dev->vendor->ops->func(__wrapper_dev->vendor, ##__VA_ARGS__); \
+})
+
+#define CAMERA_ID(device) (((wrapper_camera_device_t *)(device))->id)
+
+static int check_vendor_module()
+{
+ int rv = 0;
+ ALOGV("%s", __FUNCTION__);
+
+ if(gVendorModule)
+ return 0;
+
+ rv = hw_get_module("vendor-camera", (const hw_module_t **)&gVendorModule);
+ if (rv)
+ ALOGE("failed to open vendor camera module");
+ return rv;
+}
+
+const static char * iso_values[] = {"auto,ISO100,ISO200,ISO400,ISO800","auto"};
+
+static char * camera_fixup_getparams(int id, const char * settings)
+{
+ android::CameraParameters params;
+ params.unflatten(android::String8(settings));
+
+ // fix params here
+#warning "Reimplement KEY_SUPPORTED_ISO_MODES"
+// params.set(android::CameraParameters::KEY_SUPPORTED_ISO_MODES, iso_values[id]);
+
+ android::String8 strParams = params.flatten();
+ char *ret = strdup(strParams.string());
+
+ ALOGD("%s: get parameters fixed up", __FUNCTION__);
+ return ret;
+}
+
+char * camera_fixup_setparams(int id, const char * settings)
+{
+ android::CameraParameters params;
+ params.unflatten(android::String8(settings));
+
+/*
+ // fix params here
+ if(params.get("iso")) {
+ const char* isoMode = params.get(android::CameraParameters::KEY_ISO_MODE);
+ if(strcmp(isoMode, "ISO100") == 0)
+ params.set(android::CameraParameters::KEY_ISO_MODE, "100");
+ else if(strcmp(isoMode, "ISO200") == 0)
+ params.set(android::CameraParameters::KEY_ISO_MODE, "200");
+ else if(strcmp(isoMode, "ISO400") == 0)
+ params.set(android::CameraParameters::KEY_ISO_MODE, "400");
+ else if(strcmp(isoMode, "ISO800") == 0)
+ params.set(android::CameraParameters::KEY_ISO_MODE, "800");
+ }
+*/
+ android::String8 strParams = params.flatten();
+ char *ret = strdup(strParams.string());
+
+ ALOGD("%s: set parameters fixed up", __FUNCTION__);
+ return ret;
+}
+
+/*******************************************************************
+ * implementation of camera_device_ops functions
+ *******************************************************************/
+
+int camera_set_preview_window(struct camera_device * device,
+ struct preview_stream_ops *window)
+{
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, set_preview_window, window);
+}
+
+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)
+{
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+ ALOGV("%s", __FUNCTION__);
+
+ if(!device)
+ return;
+
+ VENDOR_CALL(device, set_callbacks, notify_cb, data_cb, data_cb_timestamp, get_memory, user);
+}
+
+void camera_enable_msg_type(struct camera_device * device, int32_t msg_type)
+{
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+ ALOGV("%s", __FUNCTION__);
+
+ if(!device)
+ return;
+
+ VENDOR_CALL(device, enable_msg_type, msg_type);
+}
+
+void camera_disable_msg_type(struct camera_device * device, int32_t msg_type)
+{
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+ ALOGV("%s", __FUNCTION__);
+
+ if(!device)
+ return;
+
+ VENDOR_CALL(device, disable_msg_type, msg_type);
+}
+
+int camera_msg_type_enabled(struct camera_device * device, int32_t msg_type)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return 0;
+
+ return VENDOR_CALL(device, msg_type_enabled, msg_type);
+}
+
+int camera_start_preview(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, start_preview);
+}
+
+void camera_stop_preview(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return;
+
+ VENDOR_CALL(device, stop_preview);
+}
+
+int camera_preview_enabled(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, preview_enabled);
+}
+
+int camera_store_meta_data_in_buffers(struct camera_device * device, int enable)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, store_meta_data_in_buffers, enable);
+}
+
+int camera_start_recording(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return EINVAL;
+
+ return VENDOR_CALL(device, start_recording);
+}
+
+void camera_stop_recording(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return;
+
+
+ VENDOR_CALL(device, stop_recording);
+}
+
+int camera_recording_enabled(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, recording_enabled);
+}
+
+void camera_release_recording_frame(struct camera_device * device,
+ const void *opaque)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return;
+
+ VENDOR_CALL(device, release_recording_frame, opaque);
+}
+
+int camera_auto_focus(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+
+ return VENDOR_CALL(device, auto_focus);
+}
+
+int camera_cancel_auto_focus(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ // Samsung camera HAL restarts focus (CAF_RESTART) when we cancel auto focus.
+ // Cancel auto focus is called just before pic is taken in autofocus mode, thus
+ // the HAL crashes.
+ return 0;
+ //return VENDOR_CALL(device, cancel_auto_focus);
+}
+
+int camera_take_picture(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, take_picture);
+}
+
+int camera_cancel_picture(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, take_picture);
+}
+
+int camera_set_parameters(struct camera_device * device, const char *params)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ char *tmp = NULL;
+ tmp = camera_fixup_setparams(CAMERA_ID(device), params);
+
+#ifdef LOG_PARAMETERS
+ __android_log_write(ANDROID_LOG_VERBOSE, LOG_TAG, tmp);
+#endif
+
+ int ret = VENDOR_CALL(device, set_parameters, tmp);
+ return ret;
+}
+
+char* camera_get_parameters(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return NULL;
+
+ char* params = VENDOR_CALL(device, get_parameters);
+
+#ifdef LOG_PARAMETERS
+ __android_log_write(ANDROID_LOG_VERBOSE, LOG_TAG, params);
+#endif
+
+ char * tmp = camera_fixup_getparams(CAMERA_ID(device), params);
+ VENDOR_CALL(device, put_parameters, params);
+ params = tmp;
+
+#ifdef LOG_PARAMETERS
+ __android_log_write(ANDROID_LOG_VERBOSE, LOG_TAG, params);
+#endif
+
+ return params;
+}
+
+static void camera_put_parameters(struct camera_device *device, char *params)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(params)
+ free(params);
+}
+
+int camera_send_command(struct camera_device * device,
+ int32_t cmd, int32_t arg1, int32_t arg2)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return -EINVAL;
+
+ /* send_command causes the camera hal do to unexpected things like lockups.
+ * don't pass any command to the vendor hal to prevent this */
+ return 0;
+ //return VENDOR_CALL(device, send_command, cmd, arg1, arg2);
+}
+
+void camera_release(struct camera_device * device)
+{
+ ALOGV("%s", __FUNCTION__);
+ ALOGV("%s->%08X->%08X", __FUNCTION__, (uintptr_t)device, (uintptr_t)(((wrapper_camera_device_t*)device)->vendor));
+
+ if(!device)
+ return;
+
+ VENDOR_CALL(device, release);
+}
+
+int camera_dump(struct camera_device * device, int fd)
+{
+ if(!device)
+ return -EINVAL;
+
+ return VENDOR_CALL(device, dump, fd);
+}
+
+extern "C" void heaptracker_free_leaked_memory(void);
+
+int camera_device_close(hw_device_t* device)
+{
+ int ret = 0;
+ wrapper_camera_device_t *wrapper_dev = NULL;
+
+ ALOGV("%s", __FUNCTION__);
+
+ android::Mutex::Autolock lock(gCameraWrapperLock);
+
+ if (!device) {
+ ret = -EINVAL;
+ goto done;
+ }
+
+ wrapper_dev = (wrapper_camera_device_t*) device;
+
+ wrapper_dev->vendor->common.close((hw_device_t*)wrapper_dev->vendor);
+ if (wrapper_dev->base.ops)
+ free(wrapper_dev->base.ops);
+ free(wrapper_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 = 0;
+ int num_cameras = 0;
+ int cameraid;
+ wrapper_camera_device_t* camera_device = NULL;
+ camera_device_ops_t* camera_ops = NULL;
+
+ android::Mutex::Autolock lock(gCameraWrapperLock);
+
+ ALOGV("camera_device open");
+
+ if (name != NULL) {
+ if (check_vendor_module())
+ return -EINVAL;
+
+ cameraid = atoi(name);
+ num_cameras = gVendorModule->get_number_of_cameras();
+
+ if(cameraid > num_cameras)
+ {
+ ALOGE("camera service provided cameraid out of bounds, "
+ "cameraid = %d, num supported = %d",
+ cameraid, num_cameras);
+ rv = -EINVAL;
+ goto fail;
+ }
+
+ camera_device = (wrapper_camera_device_t*)malloc(sizeof(*camera_device));
+ if(!camera_device)
+ {
+ ALOGE("camera_device allocation fail");
+ rv = -ENOMEM;
+ goto fail;
+ }
+ memset(camera_device, 0, sizeof(*camera_device));
+ camera_device->id = cameraid;
+
+ if(rv = gVendorModule->common.methods->open((const hw_module_t*)gVendorModule, name, (hw_device_t**)&(camera_device->vendor)))
+ {
+ ALOGE("vendor camera open fail");
+ goto fail;
+ }
+ ALOGV("%s: got vendor camera device 0x%08X", __FUNCTION__, (uintptr_t)(camera_device->vendor));
+
+ camera_ops = (camera_device_ops_t*)malloc(sizeof(*camera_ops));
+ if(!camera_ops)
+ {
+ ALOGE("camera_ops allocation fail");
+ rv = -ENOMEM;
+ goto fail;
+ }
+
+ 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;
+ }
+
+ return rv;
+
+fail:
+ if(camera_device) {
+ free(camera_device);
+ camera_device = NULL;
+ }
+ if(camera_ops) {
+ free(camera_ops);
+ camera_ops = NULL;
+ }
+ *device = NULL;
+ return rv;
+}
+
+int camera_get_number_of_cameras(void)
+{
+ ALOGV("%s", __FUNCTION__);
+ if (check_vendor_module())
+ return 0;
+ return gVendorModule->get_number_of_cameras();
+}
+
+int camera_get_camera_info(int camera_id, struct camera_info *info)
+{
+ ALOGV("%s", __FUNCTION__);
+ if (check_vendor_module())
+ return 0;
+ return gVendorModule->get_camera_info(camera_id, info);
+}