rp2/mpconfigport: Factor core event handling to EVENT_POLL_HOOK_FAST.

Signed-off-by: Damien George <damien@micropython.org>

ports/rp2/mpconfigport.h

@@ -248,12 +248,17 @@ extern const struct _mod_network_nic_type_t mod_network_nic_type_wiznet5k;
 #define MICROPY_HW_USBDEV_TASK_HOOK
 #endif
 
-#define MICROPY_EVENT_POLL_HOOK \
+#define MICROPY_EVENT_POLL_HOOK_FAST \
     do { \
+        MICROPY_HW_USBDEV_TASK_HOOK \
         extern void mp_handle_pending(bool); \
         mp_handle_pending(true); \
+    } while (0)
+
+#define MICROPY_EVENT_POLL_HOOK \
+    do { \
+        MICROPY_EVENT_POLL_HOOK_FAST; \
         best_effort_wfe_or_timeout(make_timeout_time_ms(1)); \
-        MICROPY_HW_USBDEV_TASK_HOOK \
     } while (0);
 
 #define MICROPY_MAKE_POINTER_CALLABLE(p) ((void *)((mp_uint_t)(p) | 1))

ports/rp2/mphalport.c

@@ -157,9 +157,8 @@ void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) {
 void mp_hal_delay_ms(mp_uint_t ms) {
     absolute_time_t t = make_timeout_time_ms(ms);
     while (!time_reached(t)) {
-        mp_handle_pending(true);
+        MICROPY_EVENT_POLL_HOOK_FAST;
         best_effort_wfe_or_timeout(t);
-        MICROPY_HW_USBDEV_TASK_HOOK
     }
 }
 

ports/rp2/rp2_pio.c

@@ -657,8 +657,7 @@ STATIC mp_obj_t rp2_state_machine_get(size_t n_args, const mp_obj_t *args) {
     for (;;) {
         while (pio_sm_is_rx_fifo_empty(self->pio, self->sm)) {
             // This delay must be fast.
-            mp_handle_pending(true);
-            MICROPY_HW_USBDEV_TASK_HOOK
+            MICROPY_EVENT_POLL_HOOK_FAST;
         }
         uint32_t value = pio_sm_get(self->pio, self->sm) >> shift;
         if (dest == NULL) {
@@ -716,8 +715,7 @@ STATIC mp_obj_t rp2_state_machine_put(size_t n_args, const mp_obj_t *args) {
         }
         while (pio_sm_is_tx_fifo_full(self->pio, self->sm)) {
             // This delay must be fast.
-            mp_handle_pending(true);
-            MICROPY_HW_USBDEV_TASK_HOOK
+            MICROPY_EVENT_POLL_HOOK_FAST;
         }
         pio_sm_put(self->pio, self->sm, value << shift);
     }