/* * Copyright (C) 2016 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. */ #ifndef EVENTNUMS_H #define EVENTNUMS_H #include #include "toolchain.h" /* These define ranges of reserved events */ // local events are 16-bit always #define EVT_NO_FIRST_USER_EVENT 0x00000100 //all events lower than this are reserved for the OS. all of them are nondiscardable necessarily! #define EVT_NO_FIRST_SENSOR_EVENT 0x00000200 //sensor type SENSOR_TYPE_x produces events of type EVT_NO_FIRST_SENSOR_EVENT + SENSOR_TYPE_x for all Google-defined sensors #define EVT_NO_SENSOR_CONFIG_EVENT 0x00000300 //event to configure sensors #define EVT_APP_START 0x00000400 //sent when an app can actually start #define EVT_APP_TO_HOST 0x00000401 //app data to host. Type is struct HostHubRawPacket #define EVT_MARSHALLED_SENSOR_DATA 0x00000402 //marshalled event data. Type is MarshalledUserEventData #define EVT_RESET_REASON 0x00000403 //reset reason to host. #define EVT_APP_TO_SENSOR_HAL_DATA 0x00000404 // sensor driver out of band data update to sensor hal #define EVT_DEBUG_LOG 0x00007F01 // send message payload to Linux kernel log #define EVT_MASK 0x0000FFFF // host-side events are 32-bit // DEBUG_LOG_EVT is normally undefined, or defined with a special value, recognized by nanohub driver: 0x3B474F4C // if defined with this value, the log message payload will appear in Linux kernel message log. // If defined with other value, it will still be sent to nanohub driver, and then forwarded to userland // verbatim, where it could be logged by nanohub HAL (by turning on it's logging via 'setprop persist.nanohub.debug 1' #ifdef DEBUG_LOG_EVT #define HOST_EVT_DEBUG_LOG DEBUG_LOG_EVT #endif #define HOST_HUB_RAW_PACKET_MAX_LEN 128 SET_PACKED_STRUCT_MODE_ON struct HostHubRawPacket { uint64_t appId; uint8_t dataLen; //not incl this header, 128 bytes max //raw data in unspecified format here }ATTRIBUTE_PACKED; SET_PACKED_STRUCT_MODE_OFF SET_PACKED_STRUCT_MODE_ON struct NanohubMsgChreHdr { uint8_t size; uint32_t appEvent; }ATTRIBUTE_PACKED; SET_PACKED_STRUCT_MODE_OFF SET_PACKED_STRUCT_MODE_ON struct MarshalledUserEventData { //for matching uint32_t origEvtType; int32_t dataLen; //use negative here to indicate marshalling error. //raw data in unspecified format here }ATTRIBUTE_PACKED; SET_PACKED_STRUCT_MODE_OFF /* * When sensor drivers use EVT_APP_TO_HOST, e.g. for reporting calibration data, * the data segment of struct HostHubRawPacket is strongly recommended to begin * with this header to allow for common parsing. But this is not a requirement, * as these messages are inherently application-specific. */ SET_PACKED_STRUCT_MODE_ON struct SensorAppEventHeader { uint8_t msgId; uint8_t sensorType; uint8_t status; // 0 for success, else application-specific error code }ATTRIBUTE_PACKED; SET_PACKED_STRUCT_MODE_OFF #define SENSOR_APP_EVT_STATUS_SUCCESS 0x00 #define SENSOR_APP_EVT_STATUS_ERROR 0x01 // General failure #define SENSOR_APP_EVT_STATUS_BUSY 0x02 #define SENSOR_APP_MSG_ID_CAL_RESULT 0x00 // Status of calibration, with resulting biases #define SENSOR_APP_MSG_ID_TEST_RESULT 0x01 // Status of self-test /* * These events are in private OS-reserved range, and are sent targettedly * to one app. This is OK since real OS-reserved internal events will never * go to apps, as that region is reserved for them. We thus achieve succesful * overloading of the range. */ //for all apps #define EVT_APP_FREE_EVT_DATA 0x000000FF //sent to an external app when its event has been marked for freeing. Data: struct AppEventFreeData // this event is never enqueued; it goes directly to the app. // It notifies app that hav outstanding IO, that is is about to end; // Expected app behavior is to not send any more events to system; // any events sent after this point will be silently ignored by the system; // any outstading events will be allowed to proceed to completion. (this is SIG_STOP) #define EVT_APP_STOP 0x000000FE // Internal event, with task pointer as event data; // system ends the task unconditionally; no further checks performed (this is SIG_KILL) #define EVT_APP_END 0x000000FD //for host comms #define EVT_APP_FROM_HOST 0x000000F8 //host data to an app. Type is struct HostMsgHdr #define EVT_APP_FROM_HOST_CHRE 0x000000F9 //host data to an app. Type is struct HostMsgHdrChre //for apps that use I2C #define EVT_APP_I2C_CBK 0x000000F0 //data pointer points to struct I2cEventData //for apps that claim to be a sensor #define EVT_APP_SENSOR_POWER 0x000000EF //data pointer is not a pointer, it is a bool encoded as (void*) #define EVT_APP_SENSOR_FW_UPLD 0x000000EE #define EVT_APP_SENSOR_SET_RATE 0x000000ED //data pointer points to a "const struct SensorSetRateEvent" #define EVT_APP_SENSOR_FLUSH 0x000000EC #define EVT_APP_SENSOR_TRIGGER 0x000000EB #define EVT_APP_SENSOR_CALIBRATE 0x000000EA #define EVT_APP_SENSOR_CFG_DATA 0x000000E9 #define EVT_APP_SENSOR_SEND_ONE_DIR_EVT 0x000000E8 #define EVT_APP_SENSOR_MARSHALL 0x000000E7 // for external sensors that send events of "user type" #define EVT_APP_SENSOR_SELF_TEST 0x000000E6 //for timers #define EVT_APP_TIMER 0x000000DF #endif /* EVENTNUMS_H */