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 }; 38 39 SET_PACKED_STRUCT_MODE_ON 40 struct HostIntfDataBuffer 41 { 42 union 43 { 44 struct 45 { 46 uint8_t sensType; 47 uint8_t length; 48 uint8_t dataType; 49 uint8_t interrupt; 50 }; 51 uint32_t evtType; 52 }; 53 union 54 { 55 struct 56 { 57 uint64_t referenceTime; 58 union 59 { 60 struct SensorFirstSample firstSample; 61 struct SingleAxisDataPoint single[HOSTINTF_SENSOR_DATA_MAX / sizeof(struct SingleAxisDataPoint)]; 62 struct TripleAxisDataPoint triple[HOSTINTF_SENSOR_DATA_MAX / sizeof(struct TripleAxisDataPoint)]; 63 struct RawTripleAxisDataPoint rawTriple[HOSTINTF_SENSOR_DATA_MAX / sizeof(struct RawTripleAxisDataPoint)]; 64 }; 65 }; 66 uint8_t buffer[sizeof(uint64_t) + HOSTINTF_SENSOR_DATA_MAX]; 67 }; 68 } ATTRIBUTE_PACKED; 69 SET_PACKED_STRUCT_MODE_OFF 70 71 void hostIntfCopyInterrupts(void *dst, uint32_t numBits); 72 void hostIntfClearInterrupts(); 73 void hostIntfSetInterrupt(uint32_t bit); 74 bool hostIntfGetInterrupt(uint32_t bit); 75 void hostIntfClearInterrupt(uint32_t bit); 76 void hostIntfSetInterruptMask(uint32_t bit); 77 bool hostIntfGetInterruptMask(uint32_t bit); 78 void hostIntfClearInterruptMask(uint32_t bit); 79 void hostIntfPacketFree(void *ptr); 80 bool hostIntfPacketDequeue(void *ptr, uint32_t *wakeup, uint32_t *nonwakeup); 81 void hostIntfSetBusy(bool busy); 82 void hostIntfRxPacket(bool wakeupActive); 83 void hostIntfTxAck(void *buffer, uint8_t len); 84 85 #endif /* __HOSTINTF_H */ 86