bh_chip: add handle_pgood_event to bh_chip library

Move pgood handler from the DMC app to the bh_chip library.

Signed-off-by: Petra Alexson <[email protected]>

Author: kikkiakki

app/dmc/src/main.c

@@ -345,29 +345,7 @@ int main(void)
 
 		/* handler for PGOOD */
 		ARRAY_FOR_EACH_PTR(BH_CHIPS, chip) {
-			if (chip->data.pgood_fall_triggered && !chip->data.pgood_severe_fault) {
-				int64_t current_uptime_ms = k_uptime_get();
-				/* Assert board fault */
-				gpio_pin_set_dt(&board_fault_led, 1);
-				/* Report over SMBus - to add later */
-				/* Assert ASIC reset */
-				bh_chip_assert_asic_reset(chip);
-				/* If pgood went down again within 1 second */
-				if (chip->data.pgood_last_trip_ms != 0 &&
-				    current_uptime_ms - chip->data.pgood_last_trip_ms < 1000) {
-					/* Assert more severe fault over IPMI - to add later */
-					chip->data.pgood_severe_fault = true;
-				}
-				chip->data.pgood_last_trip_ms = current_uptime_ms;
-				chip->data.pgood_fall_triggered = false;
-			}
-			if (chip->data.pgood_rise_triggered && !chip->data.pgood_severe_fault) {
-				/* Follow out of reset procedure */
-				bh_chip_reset_chip(chip, true);
-				/* Clear board fault */
-				gpio_pin_set_dt(&board_fault_led, 0);
-				chip->data.pgood_rise_triggered = false;
-			}
+			handle_pgood_event(chip, board_fault_led);
 		}
 
 		/* TODO(drosen): Turn this into a task which will re-arm until static data is sent

include/tenstorrent/bh_chip.h

@@ -141,6 +141,8 @@ int bh_chip_reset_chip(struct bh_chip *chip, bool force_reset);
 int therm_trip_gpio_setup(struct bh_chip *chip);
 int pgood_gpio_setup(struct bh_chip *chip);
 
+void handle_pgood_event(struct bh_chip *chip, struct gpio_dt_spec board_fault_led);
+
 #ifdef __cplusplus
 }
 #endif

lib/tenstorrent/bh_chip/bh_chip.c

@@ -185,3 +185,30 @@ int pgood_gpio_setup(struct bh_chip *chip)
 
 	return ret;
 }
+
+void handle_pgood_event(struct bh_chip *chip, struct gpio_dt_spec board_fault_led)
+{
+	if (chip->data.pgood_fall_triggered && !chip->data.pgood_severe_fault) {
+		int64_t current_uptime_ms = k_uptime_get();
+		/* Assert board fault */
+		gpio_pin_set_dt(&board_fault_led, 1);
+		/* Report over SMBus - to add later */
+		/* Assert ASIC reset */
+		bh_chip_assert_asic_reset(chip);
+		/* If pgood went down again within 1 second */
+		if (chip->data.pgood_last_trip_ms != 0 &&
+		    current_uptime_ms - chip->data.pgood_last_trip_ms < 1000) {
+			/* Assert more severe fault over IPMI - to add later */
+			chip->data.pgood_severe_fault = true;
+		}
+		chip->data.pgood_last_trip_ms = current_uptime_ms;
+		chip->data.pgood_fall_triggered = false;
+	}
+	if (chip->data.pgood_rise_triggered && !chip->data.pgood_severe_fault) {
+		/* Follow out of reset procedure */
+		bh_chip_reset_chip(chip, true);
+		/* Clear board fault */
+		gpio_pin_set_dt(&board_fault_led, 0);
+		chip->data.pgood_rise_triggered = false;
+	}
+}