246 static void can_xmc4xxx_deinit_fifo(const struct device *dev, struct can_xmc4xxx_rx_fifo *fifo)  in can_xmc4xxx_deinit_fifo()  argument
248 	CAN_MO_TypeDef *mo = fifo->base;  in can_xmc4xxx_deinit_fifo()
260 		if ((uint32_t)mo == (uint32_t)fifo->top) {  in can_xmc4xxx_deinit_fifo()
276 				 struct can_xmc4xxx_rx_fifo *fifo, bool is_rtr)  in can_xmc4xxx_init_fifo()  argument
291 	fifo->base = mo;  in can_xmc4xxx_init_fifo()
292 	fifo->tail = mo;  in can_xmc4xxx_init_fifo()
346 	fifo->base->MOFGPR = reg;  in can_xmc4xxx_init_fifo()
347 	fifo->top = mo;  in can_xmc4xxx_init_fifo()
565 static inline void can_xmc4xxx_increment_fifo_tail(struct can_xmc4xxx_rx_fifo *fifo)  in can_xmc4xxx_increment_fifo_tail()  argument
569 	if ((uint32_t)fifo->tail == (uint32_t)fifo->top) {  in can_xmc4xxx_increment_fifo_tail()
570 		fifo->tail = fifo->base;  in can_xmc4xxx_increment_fifo_tail()
574 	next_index = FIELD_GET(CAN_MO_MOSTAT_PNEXT_Msk, fifo->tail->MOSTAT);  in can_xmc4xxx_increment_fifo_tail()
575 	fifo->tail = &CAN_MO->MO[next_index];  in can_xmc4xxx_increment_fifo_tail()
578 static inline bool can_xmc4xxx_is_fifo_empty(struct can_xmc4xxx_rx_fifo *fifo)  in can_xmc4xxx_is_fifo_empty()  argument
580 	if (fifo->tail->MOSTAT & XMC_CAN_MO_STATUS_RX_PENDING) {  in can_xmc4xxx_is_fifo_empty()
587 static inline void can_xmc4xxx_update_fifo_head(struct can_xmc4xxx_rx_fifo *fifo)  in can_xmc4xxx_update_fifo_head()  argument
589 	uint32_t reg = fifo->base->MOFGPR;  in can_xmc4xxx_update_fifo_head()
593 	fifo->head = &CAN_MO->MO[head_index];  in can_xmc4xxx_update_fifo_head()
601 static void can_xmc4xxx_rx_fifo_handler(const struct device *dev, struct can_xmc4xxx_rx_fifo *fifo,  in can_xmc4xxx_rx_fifo_handler()  argument
604 	bool is_rtr = (fifo->base->MOSTAT & CAN_MO_MOSTAT_DIR_Msk) != 0;  in can_xmc4xxx_rx_fifo_handler()
606 	while (!can_xmc4xxx_is_fifo_empty(fifo)) {  in can_xmc4xxx_rx_fifo_handler()
608 		CAN_MO_TypeDef *mo_tail = fifo->tail;  in can_xmc4xxx_rx_fifo_handler()
635 		can_xmc4xxx_increment_fifo_tail(fifo);  in can_xmc4xxx_rx_fifo_handler()