104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/*
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* Licensed under the GNU General Public License version 2 with exceptions. See
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* LICENSE file in the project root for full license information
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*/
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#include <time.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <osal.h>
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#include "ee_x86_64_tsc.h"
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#define USECS_PER_SEC 1000000
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#define NSECS_PER_SEC 1000000000
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uint64_t osEE_x86_64_tsc_read(void);
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void ee_usleep(uint32 usec);
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inline int osal_usleep (uint32 usec)
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{
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ee_usleep(usec);
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return 0;
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}
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int osal_gettimeofday(struct timeval *tv, struct timezone *tz)
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{
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uint64_t time = osEE_x86_64_tsc_read();
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tv->tv_sec = time/NSECS_PER_SEC;
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tv->tv_sec += 946684800UL; /* EtherCAT uses 2000-01-01 as epoch start */
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tv->tv_usec = (time%NSECS_PER_SEC)/1000;
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return 0;
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}
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ec_timet osal_current_time(void)
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{
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struct timeval current_time;
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ec_timet ret;
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osal_gettimeofday(¤t_time, 0);
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ret.sec = current_time.tv_sec;
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ret.usec = current_time.tv_usec;
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return ret;
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}
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void osal_time_diff(ec_timet *start, ec_timet *end, ec_timet *diff)
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{
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if (end->usec < start->usec) {
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diff->sec = end->sec - start->sec - 1;
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diff->usec = end->usec + USECS_PER_SEC - start->usec;
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} else {
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diff->sec = end->sec - start->sec;
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diff->usec = end->usec - start->usec;
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}
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}
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void osal_timer_start(osal_timert *self, uint32 timeout_usec)
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{
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struct timeval start_time;
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struct timeval timeout;
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struct timeval stop_time;
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osal_gettimeofday(&start_time, 0);
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timeout.tv_sec = timeout_usec / USECS_PER_SEC;
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timeout.tv_usec = timeout_usec % USECS_PER_SEC;
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timeradd(&start_time, &timeout, &stop_time);
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self->stop_time.sec = stop_time.tv_sec;
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self->stop_time.usec = stop_time.tv_usec;
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}
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boolean osal_timer_is_expired (osal_timert *self)
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{
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struct timeval current_time;
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struct timeval stop_time;
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int is_not_yet_expired;
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osal_gettimeofday (¤t_time, 0);
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stop_time.tv_sec = self->stop_time.sec;
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stop_time.tv_usec = self->stop_time.usec;
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is_not_yet_expired = timercmp (¤t_time, &stop_time, <);
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/* OSEE_PRINT("current: %d:%d -- expire: %d:%d -- result: %d\n", */
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/* current_time.tv_sec, */
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/* current_time.tv_usec, */
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/* stop_time.tv_sec, */
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/* stop_time.tv_usec, */
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/* is_not_yet_expired); */
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return is_not_yet_expired == FALSE;
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}
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void *osal_malloc(size_t size)
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{
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return malloc(size);
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}
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void osal_free(void *ptr)
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{
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free(ptr);
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}
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