235 lines
7.9 KiB
C++
235 lines
7.9 KiB
C++
/* Copyright (c) 2014, 2020 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#define LOG_NDEBUG 0
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#define LOG_TAG "LocSvc_misc_utils"
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include <dlfcn.h>
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#include <log_util.h>
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#include <loc_misc_utils.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#ifndef MSEC_IN_ONE_SEC
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#define MSEC_IN_ONE_SEC 1000ULL
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#endif
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#define GET_MSEC_FROM_TS(ts) ((ts.tv_sec * MSEC_IN_ONE_SEC) + (ts.tv_nsec + 500000)/1000000)
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int loc_util_split_string(char *raw_string, char **split_strings_ptr,
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int max_num_substrings, char delimiter)
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{
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int raw_string_index=0;
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int num_split_strings=0;
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unsigned char end_string=0;
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int raw_string_length=0;
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if(!raw_string || !split_strings_ptr) {
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LOC_LOGE("%s:%d]: NULL parameters", __func__, __LINE__);
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num_split_strings = -1;
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goto err;
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}
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LOC_LOGD("%s:%d]: raw string: %s\n", __func__, __LINE__, raw_string);
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raw_string_length = strlen(raw_string) + 1;
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split_strings_ptr[num_split_strings] = &raw_string[raw_string_index];
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for(raw_string_index=0; raw_string_index < raw_string_length; raw_string_index++) {
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if(raw_string[raw_string_index] == '\0')
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end_string=1;
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if((raw_string[raw_string_index] == delimiter) || end_string) {
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raw_string[raw_string_index] = '\0';
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if (num_split_strings < max_num_substrings) {
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LOC_LOGD("%s:%d]: split string: %s\n",
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__func__, __LINE__, split_strings_ptr[num_split_strings]);
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}
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num_split_strings++;
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if(((raw_string_index + 1) < raw_string_length) &&
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(num_split_strings < max_num_substrings)) {
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split_strings_ptr[num_split_strings] = &raw_string[raw_string_index+1];
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}
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else {
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break;
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}
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}
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if(end_string)
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break;
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}
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err:
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LOC_LOGD("%s:%d]: num_split_strings: %d\n", __func__, __LINE__, num_split_strings);
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return num_split_strings;
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}
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void loc_util_trim_space(char *org_string)
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{
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char *scan_ptr, *write_ptr;
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char *first_nonspace = NULL, *last_nonspace = NULL;
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if(org_string == NULL) {
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LOC_LOGE("%s:%d]: NULL parameter", __func__, __LINE__);
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goto err;
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}
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scan_ptr = write_ptr = org_string;
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while (*scan_ptr) {
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//Find the first non-space character
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if ( !isspace(*scan_ptr) && first_nonspace == NULL) {
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first_nonspace = scan_ptr;
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}
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//Once the first non-space character is found in the
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//above check, keep shifting the characters to the left
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//to replace the spaces
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if (first_nonspace != NULL) {
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*(write_ptr++) = *scan_ptr;
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//Keep track of which was the last non-space character
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//encountered
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//last_nonspace will not be updated in the case where
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//the string ends with spaces
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if ( !isspace(*scan_ptr)) {
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last_nonspace = write_ptr;
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}
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}
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scan_ptr++;
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}
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//Add NULL terminator after the last non-space character
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if (last_nonspace) { *last_nonspace = '\0'; }
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err:
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return;
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}
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inline void logDlError(const char* failedCall) {
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const char * err = dlerror();
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LOC_LOGe("%s error: %s", failedCall, (nullptr == err) ? "unknown" : err);
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}
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void* dlGetSymFromLib(void*& libHandle, const char* libName, const char* symName)
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{
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void* sym = nullptr;
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if ((nullptr != libHandle || nullptr != libName) && nullptr != symName) {
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if (nullptr == libHandle) {
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libHandle = dlopen(libName, RTLD_NOW);
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if (nullptr == libHandle) {
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logDlError("dlopen");
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}
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}
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// NOT else, as libHandle gets assigned 5 line above
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if (nullptr != libHandle) {
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sym = dlsym(libHandle, symName);
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if (nullptr == sym) {
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logDlError("dlsym");
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}
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}
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} else {
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LOC_LOGe("Either libHandle (%p) or libName (%p) must not be null; "
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"symName (%p) can not be null.", libHandle, libName, symName);
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}
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return sym;
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}
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uint64_t getQTimerTickCount()
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{
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uint64_t qTimerCount = 0;
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#if __aarch64__
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asm volatile("mrs %0, cntvct_el0" : "=r" (qTimerCount));
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#elif defined (__i386__) || defined (__x86_64__)
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/* Qtimer not supported in x86 architecture */
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qTimerCount = 0;
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#else
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asm volatile("mrrc p15, 1, %Q0, %R0, c14" : "=r" (qTimerCount));
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#endif
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return qTimerCount;
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}
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uint64_t getQTimerDeltaNanos()
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{
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char qtimer_val_string[100];
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char *temp;
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uint64_t local_qtimer = 0, remote_qtimer = 0;
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int mdm_fd = -1, wlan_fd = -1, ret = 0;
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uint64_t delta = 0;
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memset(qtimer_val_string, '\0', sizeof(qtimer_val_string));
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char devNode[] = "/sys/bus/mhi/devices/0306_00.01.00/time_us";
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for (; devNode[27] < 3 && mdm_fd < 0; devNode[27]++) {
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mdm_fd = ::open(devNode, O_RDONLY);
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if (mdm_fd < 0) {
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LOC_LOGe("MDM open file: %s error: %s", devNode, strerror(errno));
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}
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}
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if (mdm_fd > 0) {
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ret = read(mdm_fd, qtimer_val_string, sizeof(qtimer_val_string)-1);
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::close(mdm_fd);
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if (ret < 0) {
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LOC_LOGe("MDM read time_us file error: %s", strerror(errno));
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} else {
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temp = qtimer_val_string;
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temp = strchr(temp, ':');
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temp = temp + 2;
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local_qtimer = atoll(temp);
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temp = strchr(temp, ':');
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temp = temp + 2;
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remote_qtimer = atoll(temp);
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if (local_qtimer >= remote_qtimer) {
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delta = (local_qtimer - remote_qtimer) * 1000;
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}
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LOC_LOGv("qtimer values in microseconds: local:%" PRIi64 " remote:%" PRIi64 ""
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" delta in nanoseconds:%" PRIi64 "",
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local_qtimer, remote_qtimer, delta);
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}
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}
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return delta;
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}
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uint64_t getQTimerFreq()
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{
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#if __aarch64__
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uint64_t val = 0;
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asm volatile("mrs %0, cntfrq_el0" : "=r" (val));
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#elif defined (__i386__) || defined (__x86_64__)
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/* Qtimer not supported in x86 architecture */
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uint64_t val = 0;
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#else
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uint32_t val = 0;
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asm volatile("mrc p15, 0, %0, c14, c0, 0" : "=r" (val));
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#endif
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return val;
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}
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uint64_t getBootTimeMilliSec()
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{
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struct timespec curTs;
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clock_gettime(CLOCK_BOOTTIME, &curTs);
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return (uint64_t)GET_MSEC_FROM_TS(curTs);
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}
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