1 /*
2  * Copyright (C) 2015 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 #ifndef HUB_DEFS_H_
18 #define HUB_DEFS_H_
19 
20 #include <hardware/sensors.h>
21 
22 #define MAX_SPI_PAYLOAD_SIZE            256
23 
24 namespace android {
25 
26 #define CONTEXTHUB_SETTINGS_PATH        "/persist/sensorcal.json"
27 #define CONTEXTHUB_SAVED_SETTINGS_PATH  "/data/vendor/sensor/sensorcal_saved.json"
28 #define MAG_BIAS_FILE_PATH              "/sys/class/power_supply/battery/compass_compensation"
29 
30 static const uint32_t kMinClockRateHz = 960000;
31 static const uint32_t kClockRateHz = kMinClockRateHz * 5;  // 4.8MHz
32 
33 enum comms_sensor_t {
34     COMMS_SENSOR_INVALID                     = 0,
35     COMMS_SENSOR_ACCEL                       = 1,
36     COMMS_SENSOR_GYRO                        = 2,
37     COMMS_SENSOR_MAG                         = 3,
38     COMMS_SENSOR_PRESSURE                    = 4,
39     COMMS_SENSOR_TEMPERATURE                 = 5,
40     COMMS_SENSOR_PROXIMITY                   = 6,
41     COMMS_SENSOR_LIGHT                       = 7,
42     COMMS_SENSOR_ORIENTATION                 = 8,
43     COMMS_SENSOR_STEP_DETECTOR               = 9,
44     COMMS_SENSOR_ANY_MOTION                  = 10,
45     COMMS_SENSOR_NO_MOTION                   = 11,
46     COMMS_SENSOR_SIGNIFICANT_MOTION          = 12,
47     COMMS_SENSOR_FLAT                        = 13,
48     COMMS_SENSOR_GRAVITY                     = 14,
49     COMMS_SENSOR_LINEAR_ACCEL                = 15,
50     COMMS_SENSOR_ROTATION_VECTOR             = 16,
51     COMMS_SENSOR_HALL                        = 17,
52     COMMS_SENSOR_GEO_MAG                     = 18,
53     COMMS_SENSOR_GAME_ROTATION_VECTOR        = 19,
54     COMMS_SENSOR_GESTURE                     = 20,
55     COMMS_SENSOR_TILT                        = 21,
56     COMMS_SENSOR_MAG_BIAS                    = 22,
57     COMMS_SENSOR_STEP_COUNTER                = 23,
58     COMMS_SENSOR_MAG_UNCALIBRATED            = 24,
59     COMMS_SENSOR_GYRO_UNCALIBRATED           = 25,
60     COMMS_SENSOR_GYRO_BIAS                   = 26,
61     COMMS_SENSOR_SYNC                        = 27,
62     COMMS_SENSOR_DOUBLE_TWIST                = 28,
63     COMMS_SENSOR_DOUBLE_TAP                  = 29,
64     COMMS_SENSOR_WINDOW_ORIENTATION          = 30,
65     COMMS_SENSOR_WRIST_TILT                  = 31,
66 
67     // The order of the activity sensors must be sequential. It is used in
68     // various places to iterate over the list of sensors that are associated
69     // with an activity.
70     COMMS_SENSOR_ACTIVITY_IN_VEHICLE_START   = 32,
71     COMMS_SENSOR_ACTIVITY_IN_VEHICLE_STOP    = 33,
72     COMMS_SENSOR_ACTIVITY_ON_BICYCLE_START   = 34,
73     COMMS_SENSOR_ACTIVITY_ON_BICYCLE_STOP    = 35,
74     COMMS_SENSOR_ACTIVITY_WALKING_START      = 36,
75     COMMS_SENSOR_ACTIVITY_WALKING_STOP       = 37,
76     COMMS_SENSOR_ACTIVITY_RUNNING_START      = 38,
77     COMMS_SENSOR_ACTIVITY_RUNNING_STOP       = 39,
78     COMMS_SENSOR_ACTIVITY_STILL_START        = 40,
79     COMMS_SENSOR_ACTIVITY_STILL_STOP         = 41,
80     COMMS_SENSOR_ACTIVITY_TILTING            = 42,
81     COMMS_SENSOR_ACCEL_BIAS                  = 43,
82     COMMS_SENSOR_DOUBLE_TOUCH                = 44,
83     COMMS_SENSOR_GAZE                        = 45,
84     COMMS_SENSOR_UNGAZE                      = 46,
85     COMMS_SENSOR_ACCEL_UNCALIBRATED          = 47,
86     COMMS_SENSOR_HUMIDITY                    = 48,
87 
88     NUM_COMMS_SENSORS_PLUS_1,
89 
90     COMMS_SENSOR_DEBUG                       = 0x99,
91 };
92 
93 #define COMMS_SENSOR_ACTIVITY_FIRST COMMS_SENSOR_ACTIVITY_IN_VEHICLE_START
94 #define COMMS_SENSOR_ACTIVITY_LAST COMMS_SENSOR_ACTIVITY_TILTING
95 
96 enum {
97     SPI_COMMS_CMD_SYNC                  = 0,
98     SPI_COMMS_CMD_SWITCH_SENSOR         = 1,
99     SPI_COMMS_CMD_ABSOLUTE_TIME         = 2,
100     SPI_COMMS_SENSOR_DATA_SCALAR        = 3,
101     SPI_COMMS_SENSOR_DATA_VEC3          = 4,
102     SPI_COMMS_SENSOR_DATA_VEC4          = 5,
103     SPI_COMMS_SENSOR_DATA_FLUSH         = 6,
104     SPI_COMMS_CMD_UPDATE_MAG_BIAS       = 7,
105     SPI_COMMS_CMD_UPDATE_MAG_ACCURACY   = 8,
106     SPI_COMMS_CMD_UPDATE_GYRO_BIAS      = 9,
107     SPI_COMMS_CMD_ACK_SUSPEND_STATE     = 10,
108     SPI_COMMS_DEBUG_OUTPUT              = 0xff,
109 };
110 
111 // Please keep existing values unchanged when adding or removing SENSOR_TYPE
112 enum {
113     SENSOR_TYPE_INTERNAL_TEMPERATURE    = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 0,
114     SENSOR_TYPE_SYNC                    = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 1,
115     SENSOR_TYPE_DOUBLE_TWIST            = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 2,
116     SENSOR_TYPE_DOUBLE_TAP              = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 3,
117     SENSOR_TYPE_DOUBLE_TOUCH            = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 4,
118     SENSOR_TYPE_GAZE                    = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 5,
119     SENSOR_TYPE_UNGAZE                  = SENSOR_TYPE_DEVICE_PRIVATE_BASE + 6,
120 };
121 
122 }  // namespace android
123 
124 #endif  // HUB_DEFS_H_
125