1 /**
2 * Copyright (C) 2020 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 <stdbool.h>
18 #include <stdint.h>
19
20 #include "chpp/common/wifi.h"
21 #include "chpp/macros.h"
22 #include "chpp/services/wifi.h"
23 #include "chre/pal/wifi.h"
24
25 static const struct chrePalSystemApi *gSystemApi;
26 static const struct chrePalWifiCallbacks *gCallbacks;
27
wifiPalOpen(const struct chrePalSystemApi * systemApi,const struct chrePalWifiCallbacks * callbacks)28 static bool wifiPalOpen(const struct chrePalSystemApi *systemApi,
29 const struct chrePalWifiCallbacks *callbacks) {
30 gSystemApi = systemApi;
31 gCallbacks = callbacks;
32
33 return true;
34 }
35
wifiPalClose(void)36 static void wifiPalClose(void) {}
37
wifiPalGetCapabilities(void)38 static uint32_t wifiPalGetCapabilities(void) {
39 return CHRE_WIFI_CAPABILITIES_SCAN_MONITORING |
40 CHRE_WIFI_CAPABILITIES_ON_DEMAND_SCAN;
41 }
42
wifiPalConfigureScanMonitor(bool enable)43 static bool wifiPalConfigureScanMonitor(bool enable) {
44 // TODO
45 UNUSED_VAR(enable);
46 return true; // If successful
47 }
48
wifiPalRequestScan(const struct chreWifiScanParams * params)49 static bool wifiPalRequestScan(const struct chreWifiScanParams *params) {
50 // TODO
51 UNUSED_VAR(params);
52 return true; // If successful
53 }
54
wifiPalReleaseScanEvent(struct chreWifiScanEvent * event)55 static void wifiPalReleaseScanEvent(struct chreWifiScanEvent *event) {
56 gSystemApi->memoryFree(CHPP_CONST_CAST_POINTER(event->results));
57 gSystemApi->memoryFree(event);
58 }
59
wifiPalRequestRanging(const struct chreWifiRangingParams * params)60 static bool wifiPalRequestRanging(const struct chreWifiRangingParams *params) {
61 // TODO
62 UNUSED_VAR(params);
63 return true; // If successful
64 }
65
wifiPalReleaseRangingEvent(struct chreWifiRangingEvent * event)66 static void wifiPalReleaseRangingEvent(struct chreWifiRangingEvent *event) {
67 gSystemApi->memoryFree(CHPP_CONST_CAST_POINTER(event->scannedFreqList));
68 gSystemApi->memoryFree(CHPP_CONST_CAST_POINTER(event->results));
69 gSystemApi->memoryFree(event);
70 }
71
72 #ifdef CHPP_SERVICE_ENABLED_WIFI
chrePalWifiGetApi(uint32_t requestedApiVersion)73 const struct chrePalWifiApi *chrePalWifiGetApi(uint32_t requestedApiVersion) {
74 static const struct chrePalWifiApi api = {
75 .moduleVersion = CHPP_PAL_WIFI_API_VERSION,
76 .open = wifiPalOpen,
77 .close = wifiPalClose,
78 .getCapabilities = wifiPalGetCapabilities,
79 .configureScanMonitor = wifiPalConfigureScanMonitor,
80 .requestScan = wifiPalRequestScan,
81 .releaseScanEvent = wifiPalReleaseScanEvent,
82 .requestRanging = wifiPalRequestRanging,
83 .releaseRangingEvent = wifiPalReleaseRangingEvent,
84 };
85
86 CHPP_STATIC_ASSERT(
87 CHRE_PAL_WIFI_API_CURRENT_VERSION == CHPP_PAL_WIFI_API_VERSION,
88 "A newer CHRE PAL API version is available. Please update.");
89
90 if (!CHRE_PAL_VERSIONS_ARE_COMPATIBLE(api.moduleVersion,
91 requestedApiVersion)) {
92 return NULL;
93 } else {
94 return &api;
95 }
96 }
97 #endif
98