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 "chpp/pal_api.h"
18
19 #include <stdarg.h>
20 #include <stdio.h>
21
22 #include "chpp/app.h"
23 #include "chpp/log.h"
24 #include "chpp/macros.h"
25 #include "chpp/memory.h"
26 #include "chpp/time.h"
27 #include "chre/pal/system.h"
28 #include "chre_api/chre/re.h"
29
30 //! Define a format string for PAL logs. This is defined as a macro so that it
31 //! can be used as a string literal by platform implementations of the logging
32 //! macros.
33 #define PAL_LOG_FORMAT_STR "PAL: %s"
34
palSystemApiGetCurrentTime(void)35 static uint64_t palSystemApiGetCurrentTime(void) {
36 return chppGetCurrentTimeNs();
37 }
38
palSystemApiLog(enum chreLogLevel level,const char * formatStr,...)39 static void palSystemApiLog(enum chreLogLevel level, const char *formatStr,
40 ...) {
41 char logBuf[512];
42 va_list args;
43
44 va_start(args, formatStr);
45 vsnprintf(logBuf, sizeof(logBuf), formatStr, args);
46 // TODO: not sure if vsnprintf will be well-supported on partner platforms (on
47 // the CHRE side, we know it's the case for SLPI but even then it's not
48 // supported in micro-image). We may instead want to expose a va_list version
49 // of the platform log functionality, so we can just forward directly to the
50 // underlying platform log functionality without handling format string
51 // expansion in common code.
52 va_end(args);
53
54 switch (level) {
55 case CHRE_LOG_ERROR:
56 CHPP_LOGE(PAL_LOG_FORMAT_STR, logBuf);
57 break;
58 case CHRE_LOG_WARN:
59 CHPP_LOGW(PAL_LOG_FORMAT_STR, logBuf);
60 break;
61 case CHRE_LOG_INFO:
62 CHPP_LOGI(PAL_LOG_FORMAT_STR, logBuf);
63 break;
64 case CHRE_LOG_DEBUG:
65 default:
66 CHPP_LOGD(PAL_LOG_FORMAT_STR, logBuf);
67 }
68 }
69
chppPalSystemApiInit(struct ChppAppState * context)70 void chppPalSystemApiInit(struct ChppAppState *context) {
71 // Initialize the CHRE System API with function implementations provided
72 // above.
73 static const struct chrePalSystemApi chrePalSystemApi = {
74 .version = CHRE_PAL_SYSTEM_API_CURRENT_VERSION,
75 .getCurrentTime = palSystemApiGetCurrentTime,
76 .log = palSystemApiLog,
77 .memoryAlloc = chppMalloc,
78 .memoryFree = chppFree,
79 };
80
81 context->systemApi = &chrePalSystemApi;
82 }
83
chppPalSystemApiDeinit(struct ChppAppState * context)84 void chppPalSystemApiDeinit(struct ChppAppState *context) {
85 UNUSED_VAR(context);
86 }
87