newlib: implement usleep
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10f0543080
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2 changed files with 16 additions and 1 deletions
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@ -898,7 +898,7 @@ int linenoiseProbe() {
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int timeout_ms = 200;
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size_t read_bytes = 0;
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while (timeout_ms > 0 && read_bytes < 4) { // response is ESC[0n or ESC[3n
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usleep(1000);
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usleep(10000);
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char c;
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int cb = fread(&c, 1, 1, stdin);
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read_bytes += cb;
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@ -16,6 +16,7 @@
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#include <stdlib.h>
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#include <time.h>
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#include <reent.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/reent.h>
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#include <sys/time.h>
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@ -244,6 +245,20 @@ int settimeofday(const struct timeval *tv, const struct timezone *tz)
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#endif
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}
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int usleep(useconds_t us)
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{
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const int us_per_tick = portTICK_PERIOD_MS * 1000;
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if (us < us_per_tick) {
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ets_delay_us((uint32_t) us);
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} else {
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/* since vTaskDelay(1) blocks for anywhere between 0 and portTICK_PERIOD_MS,
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* round up to compensate.
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*/
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vTaskDelay((us + us_per_tick - 1) / us_per_tick);
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}
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return 0;
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}
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uint32_t system_get_time(void)
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{
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#if defined( WITH_FRC1 ) || defined( WITH_RTC )
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