1 /* 2 * Copyright (C) 2008 The Android Open Source Project 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 #define SENSORS_HARDWARE_CONTROL "control" 18 #define SENSORS_HARDWARE_DATA "data" 19 20 __BEGIN_DECLS 21 22 typedef struct { 23 int sensor; 24 union { 25 sensors_vec_t vector; 26 sensors_vec_t orientation; 27 sensors_vec_t acceleration; 28 sensors_vec_t magnetic; 29 float temperature; 30 float distance; 31 float light; 32 }; 33 int64_t time; 34 uint32_t reserved; 35 } sensors_data_t; 36 37 struct sensors_control_device_t { 38 struct hw_device_t common; 39 native_handle_t* (*open_data_source)(struct sensors_control_device_t *dev); 40 int (*close_data_source)(struct sensors_control_device_t *dev); 41 int (*activate)(struct sensors_control_device_t *dev, 42 int handle, int enabled); 43 int (*set_delay)(struct sensors_control_device_t *dev, int32_t ms); 44 int (*wake)(struct sensors_control_device_t *dev); 45 }; 46 47 struct sensors_data_device_t { 48 struct hw_device_t common; 49 int (*data_open)(struct sensors_data_device_t *dev, native_handle_t* nh); 50 int (*data_close)(struct sensors_data_device_t *dev); 51 int (*poll)(struct sensors_data_device_t *dev, 52 sensors_data_t* data); 53 }; 54 55 static inline int sensors_control_open(const struct hw_module_t* module, 56 struct sensors_control_device_t** device) { 57 return module->methods->open(module, 58 SENSORS_HARDWARE_CONTROL, (struct hw_device_t**)device); 59 } 60 61 static inline int sensors_control_close(struct sensors_control_device_t* device) { 62 return device->common.close(&device->common); 63 } 64 65 static inline int sensors_data_open(const struct hw_module_t* module, 66 struct sensors_data_device_t** device) { 67 return module->methods->open(module, 68 SENSORS_HARDWARE_DATA, (struct hw_device_t**)device); 69 } 70 71 static inline int sensors_data_close(struct sensors_data_device_t* device) { 72 return device->common.close(&device->common); 73 } 74 75 __END_DECLS 76
