Revert ticks implementation for unix build.

Author: t-ikegami

extmod/moduasyncio.c

@@ -29,8 +29,9 @@
 #include "py/pairheap.h"
 #include "py/mphal.h"
 
-// Unix build does not have shared-bindings/supervisor/__init__.h
-extern mp_obj_t supervisor_ticks_ms(void);
+#ifndef __unix__
+#include "shared-bindings/supervisor/__init__.h"
+#endif
 
 #if MICROPY_PY_UASYNCIO
 
@@ -66,6 +67,19 @@ STATIC mp_obj_t task_queue_make_new(const mp_obj_type_t *type, size_t n_args, si
 /******************************************************************************/
 // Ticks for task ordering in pairing heap
 
+#ifdef __unix__
+STATIC mp_obj_t ticks(void) {
+    return MP_OBJ_NEW_SMALL_INT(mp_hal_ticks_ms() & (MICROPY_PY_UTIME_TICKS_PERIOD - 1));
+}
+
+STATIC mp_int_t ticks_diff(mp_obj_t t1_in, mp_obj_t t0_in) {
+    mp_uint_t t0 = MP_OBJ_SMALL_INT_VALUE(t0_in);
+    mp_uint_t t1 = MP_OBJ_SMALL_INT_VALUE(t1_in);
+    mp_int_t diff = ((t1 - t0 + MICROPY_PY_UTIME_TICKS_PERIOD / 2) & (MICROPY_PY_UTIME_TICKS_PERIOD - 1))
+        - MICROPY_PY_UTIME_TICKS_PERIOD / 2;
+    return diff;
+}
+#else
 #define _TICKS_PERIOD (1lu << 29)
 #define _TICKS_MAX (_TICKS_PERIOD - 1)
 #define _TICKS_HALFPERIOD (_TICKS_PERIOD >> 1)
@@ -78,6 +92,7 @@ STATIC mp_int_t ticks_diff(mp_obj_t t1_in, mp_obj_t t0_in) {
     mp_int_t diff = ((t1 - t0 + _TICKS_HALFPERIOD) & _TICKS_MAX) - _TICKS_HALFPERIOD;
     return diff;
 }
+#endif
 
 STATIC int task_lt(mp_pairheap_t *n1, mp_pairheap_t *n2) {
     mp_obj_task_t *t1 = (mp_obj_task_t *)n1;