From cb5848aa65e5c43b7dd520679d576879ed14045d Mon Sep 17 00:00:00 2001 From: emilchung Date: Wed, 19 Oct 2022 11:25:01 +0800 Subject: [PATCH] Remove obsolete source of sensor of L10. These files are not used anymore, removed them. Bug: 245007498 Test: build pass and check the build on L10. Change-Id: I3068eb8b80ff64279a4ad12460c6812b240da2ea Signed-off-by: emilchung --- sensors/Android.mk | 30 --- sensors/sensors_dummy.c | 409 ---------------------------------------- 2 files changed, 439 deletions(-) delete mode 100644 sensors/Android.mk delete mode 100644 sensors/sensors_dummy.c diff --git a/sensors/Android.mk b/sensors/Android.mk deleted file mode 100644 index 46d6f0c..0000000 --- a/sensors/Android.mk +++ /dev/null @@ -1,30 +0,0 @@ -# Copyright (C) 2009 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. - -LOCAL_PATH := $(call my-dir) - -# HAL module implemenation stored in -# hw/..so -include $(CLEAR_VARS) - -LOCAL_MODULE_RELATIVE_PATH := hw -LOCAL_SHARED_LIBRARIES := liblog libcutils libhardware -LOCAL_SRC_FILES := sensors_dummy.c -LOCAL_MODULE := sensors.lynx -LOCAL_LICENSE_KINDS := SPDX-license-identifier-Apache-2.0 -LOCAL_LICENSE_CONDITIONS := notice -LOCAL_NOTICE_FILE := $(LOCAL_PATH)/../NOTICE -LOCAL_PROPRIETARY_MODULE := true - -include $(BUILD_SHARED_LIBRARY) diff --git a/sensors/sensors_dummy.c b/sensors/sensors_dummy.c deleted file mode 100644 index b1edd56..0000000 --- a/sensors/sensors_dummy.c +++ /dev/null @@ -1,409 +0,0 @@ -/* - * Copyright (C) 2009 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. - */ - -/* this implements a sensors hardware library for the Android emulator. - * the following code should be built as a shared library that will be - * placed into /system/lib/hw/sensors.goldfish.so - * - * it will be loaded by the code in hardware/libhardware/hardware.c - * which is itself called from com_android_server_SensorService.cpp - */ - -#define SENSORS_SERVICE_NAME "sensors" - -#define LOG_TAG "Dummy_Sensors" - -#include -#include -#include -#include -#include -#include -#include -#include - -#if 0 -#define D(...) ALOGD(__VA_ARGS__) -#else -#define D(...) ((void)0) -#endif - -#define E(...) ALOGE(__VA_ARGS__) - -/** SENSOR IDS AND NAMES - **/ - -#define MAX_NUM_SENSORS 8 - -#define SUPPORTED_SENSORS ((1<"; -} - -static int -_sensorIdFromName( const char* name ) -{ - int nn; - - if (name == NULL) - return -1; - - for (nn = 0; nn < MAX_NUM_SENSORS; nn++) - if (!strcmp(name, _sensorIds[nn].name)) - return _sensorIds[nn].id; - - return -1; -} - -/* return the current time in nanoseconds */ -static int64_t now_ns(void) { - struct timespec ts; - clock_gettime(CLOCK_MONOTONIC, &ts); - return (int64_t)ts.tv_sec * 1000000000 + ts.tv_nsec; -} - -/** SENSORS POLL DEVICE - ** - ** This one is used to read sensor data from the hardware. - ** We implement this by simply reading the data from the - ** emulator through the QEMUD channel. - **/ - -typedef struct SensorDevice { - struct sensors_poll_device_1 device; - sensors_event_t sensors[MAX_NUM_SENSORS]; - uint32_t pendingSensors; - int64_t timeStart; - int64_t timeOffset; - uint32_t active_sensors; - int fd; - pthread_mutex_t lock; -} SensorDevice; - -/* Grab the file descriptor to the emulator's sensors service pipe. - * This function returns a file descriptor on success, or -errno on - * failure, and assumes the SensorDevice instance's lock is held. - * - * This is needed because set_delay(), poll() and activate() can be called - * from different threads, and poll() is blocking. - * - * 1) On a first thread, de-activate() all sensors first, then call poll(), - * which results in the thread blocking. - * - * 2) On a second thread, slightly later, call set_delay() then activate() - * to enable the acceleration sensor. - * - * The system expects this to unblock the first thread which will receive - * new sensor events after the activate() call in 2). - * - * This cannot work if both threads don't use the same connection. - * - * TODO(digit): This protocol is brittle, implement another control channel - * for set_delay()/activate()/batch() when supporting HAL 1.3 - */ -static int sensor_device_get_fd_locked(SensorDevice* dev) { - /* Create connection to service on first call */ - if (dev->fd < 0) { - int ret = -errno; - E("%s: Could not open connection to service: %s", __FUNCTION__, - strerror(-ret)); - return ret; - } - return dev->fd; -} - -/* Pick up one pending sensor event. On success, this returns the sensor - * id, and sets |*event| accordingly. On failure, i.e. if there are no - * pending events, return -EINVAL. - * - * Note: The device's lock must be acquired. - */ -static int sensor_device_pick_pending_event_locked(SensorDevice* d, - sensors_event_t* event) -{ - uint32_t mask = SUPPORTED_SENSORS & d->pendingSensors; - - if (mask) { - uint32_t i = 31 - __builtin_clz(mask); - - pthread_mutex_lock(&d->lock); - d->pendingSensors &= ~(1U << i); - *event = d->sensors[i]; - event->sensor = i; - event->version = sizeof(*event); - pthread_mutex_unlock(&d->lock); - D("%s: %d [%f, %f, %f]", __FUNCTION__, - i, - event->data[0], - event->data[1], - event->data[2]); - return i; - } - E("No sensor to return!!! pendingSensors=0x%08x", d->pendingSensors); - // we may end-up in a busy loop, slow things down, just in case. - usleep(1000); - return -EINVAL; -} - -static int sensor_device_close(struct hw_device_t* dev0) -{ - SensorDevice* dev = (void*)dev0; - // Assume that there are no other threads blocked on poll() - if (dev->fd >= 0) { - close(dev->fd); - dev->fd = -1; - } - pthread_mutex_destroy(&dev->lock); - free(dev); - return 0; -} - -/* Return an array of sensor data. This function blocks until there is sensor - * related events to report. On success, it will write the events into the - * |data| array, which contains |count| items. The function returns the number - * of events written into the array, which shall never be greater than |count|. - * On error, return -errno code. - * - * Note that according to the sensor HAL [1], it shall never return 0! - * - * [1] http://source.android.com/devices/sensors/hal-interface.html - */ -static int sensor_device_poll(struct sensors_poll_device_t *dev0, - sensors_event_t* data, int count) -{ - return -EIO; -} - -static int sensor_device_activate(struct sensors_poll_device_t *dev0, - int handle, - int enabled) -{ - SensorDevice* dev = (void*)dev0; - - D("%s: handle=%s (%d) enabled=%d", __FUNCTION__, - _sensorIdToName(handle), handle, enabled); - - /* Sanity check */ - if (!ID_CHECK(handle)) { - E("%s: bad handle ID", __FUNCTION__); - return -EINVAL; - } - - /* Exit early if sensor is already enabled/disabled. */ - uint32_t mask = (1U << handle); - uint32_t sensors = enabled ? mask : 0; - - pthread_mutex_lock(&dev->lock); - - uint32_t active = dev->active_sensors; - uint32_t new_sensors = (active & ~mask) | (sensors & mask); - uint32_t changed = active ^ new_sensors; - - if (changed) - dev->active_sensors = new_sensors; - - pthread_mutex_unlock(&dev->lock); - return 0; -} - -static int sensor_device_default_flush( - struct sensors_poll_device_1* dev0, - int handle) { - - SensorDevice* dev = (void*)dev0; - - D("%s: handle=%s (%d)", __FUNCTION__, - _sensorIdToName(handle), handle); - - /* Sanity check */ - if (!ID_CHECK(handle)) { - E("%s: bad handle ID", __FUNCTION__); - return -EINVAL; - } - - pthread_mutex_lock(&dev->lock); - dev->sensors[handle].version = META_DATA_VERSION; - dev->sensors[handle].type = SENSOR_TYPE_META_DATA; - dev->sensors[handle].sensor = 0; - dev->sensors[handle].timestamp = 0; - dev->sensors[handle].meta_data.what = META_DATA_FLUSH_COMPLETE; - dev->pendingSensors |= (1U << handle); - pthread_mutex_unlock(&dev->lock); - - return 0; -} - -static int sensor_device_set_delay(struct sensors_poll_device_t *dev0, - int handle __unused, - int64_t ns) -{ - return 0; -} - -static int sensor_device_default_batch( - struct sensors_poll_device_1* dev, - int sensor_handle, - int flags, - int64_t sampling_period_ns, - int64_t max_report_latency_ns) { - return sensor_device_set_delay(dev, sensor_handle, sampling_period_ns); -} - -/** MODULE REGISTRATION SUPPORT - ** - ** This is required so that hardware/libhardware/hardware.c - ** will dlopen() this library appropriately. - **/ - -/* - * the following is the list of all supported sensors. - * this table is used to build sSensorList declared below - * according to which hardware sensors are reported as - * available from the emulator (see get_sensors_list below) - * - * note: numerical values for maxRange/resolution/power for - * all sensors but light, pressure and humidity were - * taken from the reference AK8976A implementation - */ -static const struct sensor_t sSensorListInit[] = { - { .name = "Accelerometer", - .vendor = "The Android Open Source Project", - .version = 1, - .handle = ID_ACCELERATION, - .type = SENSOR_TYPE_ACCELEROMETER, - .maxRange = 2.8f, - .resolution = 1.0f/4032.0f, - .power = 3.0f, - .minDelay = 10000, - .maxDelay = 60 * 1000 * 1000, - .fifoReservedEventCount = 0, - .fifoMaxEventCount = 0, - .stringType = 0, - .requiredPermission = 0, - .flags = SENSOR_FLAG_CONTINUOUS_MODE, - .reserved = {} - }, -}; - -static struct sensor_t sSensorList[1]; - -static int sensors__get_sensors_list(struct sensors_module_t* module __unused, - struct sensor_t const** list) -{ - *list = sSensorList; - - return 0; -} - -static int -open_sensors(const struct hw_module_t* module, - const char* name, - struct hw_device_t* *device) -{ - int status = -EINVAL; - - D("%s: name=%s", __FUNCTION__, name); - - if (!strcmp(name, SENSORS_HARDWARE_POLL)) { - SensorDevice *dev = malloc(sizeof(*dev)); - - memset(dev, 0, sizeof(*dev)); - - dev->device.common.tag = HARDWARE_DEVICE_TAG; - dev->device.common.version = SENSORS_DEVICE_API_VERSION_1_3; - dev->device.common.module = (struct hw_module_t*) module; - dev->device.common.close = sensor_device_close; - dev->device.poll = sensor_device_poll; - dev->device.activate = sensor_device_activate; - dev->device.setDelay = sensor_device_set_delay; - - // Version 1.3-specific functions - dev->device.batch = sensor_device_default_batch; - dev->device.flush = sensor_device_default_flush; - - dev->fd = -1; - pthread_mutex_init(&dev->lock, NULL); - - *device = &dev->device.common; - status = 0; - } - return status; -} - - -static struct hw_module_methods_t sensors_module_methods = { - .open = open_sensors -}; - -struct sensors_module_t HAL_MODULE_INFO_SYM = { - .common = { - .tag = HARDWARE_MODULE_TAG, - .version_major = 1, - .version_minor = 0, - .id = SENSORS_HARDWARE_MODULE_ID, - .name = "Dummy SENSORS Module", - .author = "The Android Open Source Project", - .methods = &sensors_module_methods, - }, - .get_sensors_list = sensors__get_sensors_list -};