1 /* 2 * Copyright (C) 2016 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 __HOSTINTF_H 18 #define __HOSTINTF_H 19 20 #include <stdint.h> 21 #include <atomicBitset.h> 22 #include <sensors.h> 23 #include "toolchain.h" 24 25 /** 26 * System-facing hostIntf API 27 */ 28 29 #define HOSTINTF_MAX_INTERRUPTS 256 30 #define HOSTINTF_SENSOR_DATA_MAX 240 31 32 enum HostIntfDataType 33 { 34 HOSTINTF_DATA_TYPE_LOG, 35 HOSTINTF_DATA_TYPE_APP_TO_HOST, 36 HOSTINTF_DATA_TYPE_RESET_REASON, 37 HOSTINTF_DATA_TYPE_APP_TO_SENSOR_HAL, // for config data upload 38 }; 39 40 SET_PACKED_STRUCT_MODE_ON 41 struct HostIntfDataBuffer 42 { 43 union 44 { 45 struct 46 { 47 uint8_t sensType; 48 uint8_t length; 49 uint8_t dataType; 50 uint8_t interrupt; 51 }; 52 uint32_t evtType; 53 }; 54 union 55 { 56 struct 57 { 58 uint64_t referenceTime; 59 union 60 { 61 struct SensorFirstSample firstSample; 62 struct SingleAxisDataPoint single[HOSTINTF_SENSOR_DATA_MAX / sizeof(struct SingleAxisDataPoint)]; 63 struct TripleAxisDataPoint triple[HOSTINTF_SENSOR_DATA_MAX / sizeof(struct TripleAxisDataPoint)]; 64 struct RawTripleAxisDataPoint rawTriple[HOSTINTF_SENSOR_DATA_MAX / sizeof(struct RawTripleAxisDataPoint)]; 65 }; 66 }; 67 uint8_t buffer[sizeof(uint64_t) + HOSTINTF_SENSOR_DATA_MAX]; 68 }; 69 } ATTRIBUTE_PACKED; 70 SET_PACKED_STRUCT_MODE_OFF 71 72 void hostIntfCopyInterrupts(void *dst, uint32_t numBits); 73 void hostIntfClearInterrupts(); 74 void hostIntfSetInterrupt(uint32_t bit); 75 bool hostIntfGetInterrupt(uint32_t bit); 76 void hostIntfClearInterrupt(uint32_t bit); 77 void hostIntfSetInterruptMask(uint32_t bit); 78 bool hostIntfGetInterruptMask(uint32_t bit); 79 void hostIntfClearInterruptMask(uint32_t bit); 80 void hostIntfPacketFree(void *ptr); 81 bool hostIntfPacketDequeue(void *ptr, uint32_t *wakeup, uint32_t *nonwakeup); 82 void hostIntfSetBusy(bool busy); 83 void hostIntfRxPacket(bool wakeupActive); 84 void hostIntfTxAck(void *buffer, uint8_t len); 85 86 #endif /* __HOSTINTF_H */ 87