1/*
2 * Copyright (C) 2017 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#include <stdarg.h>
18
19#include <gpio.h>
20#include <osApi.h>
21#include <sensors.h>
22#include <seos.h>
23#include <util.h>
24
25/* CHRE syscalls */
26#include <chre.h>
27#include <chreApi.h>
28#include <syscall.h>
29#include <syscall_defs.h>
30
31/* not defined in chre 1.0 */
32#define CHRE_HOST_ENDPOINT_BROADCAST  UINT16_C(0xFFFF)
33
34#define SYSCALL_CHRE_API(name) \
35    SYSCALL_NO(SYSCALL_DOMAIN_CHRE, SYSCALL_CHRE_MAIN, SYSCALL_CHRE_MAIN_API, SYSCALL_CHRE_MAIN_API_ ## name)
36
37uint64_t chreGetAppId(void)
38{
39    uint64_t appId = 0;
40    (void)syscallDo1P(SYSCALL_CHRE_API(GET_APP_ID), &appId);
41    return appId;
42}
43
44uint32_t chreGetInstanceId(void)
45{
46    return syscallDo0P(SYSCALL_CHRE_API(GET_INST_ID));
47}
48
49uint64_t chreGetTime(void) {
50    uint64_t time_ns = 0;
51    (void)syscallDo1P(SYSCALL_CHRE_API(GET_TIME), &time_ns);
52    return time_ns;
53}
54
55void chreLog(enum chreLogLevel level, const char *str, ...)
56{
57    va_list vl;
58
59    va_start(vl, str);
60    (void)syscallDo3P(SYSCALL_CHRE_API(LOG), level, str, VA_LIST_TO_INTEGER(vl));
61    va_end(vl);
62}
63
64uint32_t chreTimerSet(uint64_t duration, const void* cookie, bool oneShot)
65{
66    uint32_t dur_lo = duration;
67    uint32_t dur_hi = duration >> 32;
68    return syscallDo4P(SYSCALL_CHRE_API(TIMER_SET), dur_lo, dur_hi, cookie, oneShot);
69}
70
71bool chreTimerCancel(uint32_t timerId)
72{
73    return syscallDo1P(SYSCALL_CHRE_API(TIMER_CANCEL), timerId);
74}
75
76void chreAbort(uint32_t abortCode)
77{
78    (void)syscallDo1P(SYSCALL_CHRE_API(ABORT), abortCode);
79}
80
81void* chreHeapAlloc(uint32_t bytes)
82{
83    return (void *)syscallDo1P(SYSCALL_CHRE_API(HEAP_ALLOC), bytes);
84}
85
86void chreHeapFree(void* ptr)
87{
88    (void)syscallDo1P(SYSCALL_CHRE_API(HEAP_FREE), ptr);
89}
90
91bool chreSensorFindDefault(uint8_t sensorType, uint32_t *handle)
92{
93    return syscallDo2P(SYSCALL_CHRE_API(SENSOR_FIND_DEFAULT), sensorType, handle);
94}
95
96bool chreGetSensorInfo(uint32_t sensorHandle, struct chreSensorInfo *info)
97{
98    return syscallDo2P(SYSCALL_CHRE_API(SENSOR_GET_INFO), sensorHandle, info);
99}
100
101bool chreGetSensorSamplingStatus(uint32_t sensorHandle,
102                                 struct chreSensorSamplingStatus *status)
103{
104    return syscallDo2P(SYSCALL_CHRE_API(SENSOR_GET_STATUS), sensorHandle, status);
105}
106
107bool chreSensorConfigure(uint32_t sensorHandle,
108                         enum chreSensorConfigureMode mode,
109                         uint64_t interval, uint64_t latency)
110{
111    uint32_t interval_lo = interval;
112    uint32_t interval_hi = interval >> 32;
113    uint32_t latency_lo = latency;
114    uint32_t latency_hi = latency >> 32;
115    return syscallDo6P(SYSCALL_CHRE_API(SENSOR_CONFIG), sensorHandle, mode,
116                       interval_lo, interval_hi, latency_lo, latency_hi);
117}
118
119uint32_t chreGetApiVersion(void)
120{
121    static uint32_t apiVersion = 0;
122    if (!apiVersion)
123        apiVersion = syscallDo0P(SYSCALL_CHRE_API(GET_OS_API_VERSION));
124    return apiVersion;
125}
126
127uint32_t chreGetVersion(void)
128{
129    return syscallDo0P(SYSCALL_CHRE_API(GET_OS_VERSION));
130}
131
132uint64_t chreGetPlatformId(void)
133{
134    uint64_t plat = 0;
135    (void)syscallDo1P(SYSCALL_CHRE_API(GET_PLATFORM_ID), &plat);
136    return plat;
137}
138
139bool chreSendEvent(uint16_t eventType, void *eventData,
140                   chreEventCompleteFunction *freeCallback,
141                   uint32_t targetInstanceId)
142{
143    if (chreGetApiVersion() == CHRE_API_VERSION_1_0)
144        return syscallDo4P(SYSCALL_CHRE_API(SEND_EVENT), eventType, eventData, freeCallback, targetInstanceId);
145    else
146        return syscallDo4P(SYSCALL_NO(SYSCALL_DOMAIN_CHRE, SYSCALL_CHRE_MAIN, SYSCALL_CHRE_MAIN_EVENT, SYSCALL_CHRE_MAIN_EVENT_SEND_EVENT), eventType, eventData, freeCallback, targetInstanceId);
147}
148
149bool chreSendMessageToHost(void *message, uint32_t messageSize,
150                           uint32_t reservedMessageType,
151                           chreMessageFreeFunction *freeCallback)
152{
153    if (chreGetApiVersion() == CHRE_API_VERSION_1_0)
154        return syscallDo4P(SYSCALL_CHRE_API(SEND_MSG), message, messageSize, reservedMessageType, freeCallback);
155    else
156        return syscallDo5P(SYSCALL_NO(SYSCALL_DOMAIN_CHRE, SYSCALL_CHRE_MAIN, SYSCALL_CHRE_MAIN_EVENT, SYSCALL_CHRE_MAIN_EVENT_SEND_MSG), message, messageSize, reservedMessageType, CHRE_HOST_ENDPOINT_BROADCAST, freeCallback);
157}
158