471 	struct dfifo	*df;  in receive_dmsg()  local
474 	df = &((union fifo_area *)(hc->hw.fifos))->d_chan.d_rx;  in receive_dmsg()
475 	while (((df->f1 & D_FREG_MASK) != (df->f2 & D_FREG_MASK)) && count--) {  in receive_dmsg()
476 		zp = &df->za[df->f2 & D_FREG_MASK];  in receive_dmsg()
484 			       df->f1, df->f2,  in receive_dmsg()
490 		    (df->data[le16_to_cpu(zp->z1)])) {  in receive_dmsg()
496 				       df->data[le16_to_cpu(zp->z1)]);  in receive_dmsg()
500 			df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) |  in receive_dmsg()
502 			df->za[df->f2 & D_FREG_MASK].z2 =  in receive_dmsg()
522 			ptr1 = df->data + le16_to_cpu(zp->z2);  in receive_dmsg()
529 				ptr1 = df->data;	/* start of buffer */  in receive_dmsg()
532 			df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) |  in receive_dmsg()
534 			df->za[df->f2 & D_FREG_MASK].z2 = cpu_to_le16((  in receive_dmsg()
680 	struct dfifo	*df;  in hfcpci_fill_dfifo()  local
691 	df = &((union fifo_area *) (hc->hw.fifos))->d_chan.d_tx;  in hfcpci_fill_dfifo()
695 		       df->f1, df->f2,  in hfcpci_fill_dfifo()
696 		       le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1));  in hfcpci_fill_dfifo()
697 	fcnt = df->f1 - df->f2;	/* frame count actually buffered */  in hfcpci_fill_dfifo()
710 	maxlen = le16_to_cpu(df->za[df->f2 & D_FREG_MASK].z2) -  in hfcpci_fill_dfifo()
711 		le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) - 1;  in hfcpci_fill_dfifo()
723 	new_z1 = (le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1) + count) &  in hfcpci_fill_dfifo()
725 	new_f1 = ((df->f1 + 1) & D_FREG_MASK) | (D_FREG_MASK + 1);  in hfcpci_fill_dfifo()
727 	dst = df->data + le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1);  in hfcpci_fill_dfifo()
728 	maxlen = D_FIFO_SIZE - le16_to_cpu(df->za[df->f1 & D_FREG_MASK].z1);  in hfcpci_fill_dfifo()
736 		dst = df->data;	/* start of buffer */  in hfcpci_fill_dfifo()
740 	df->za[new_f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1);  in hfcpci_fill_dfifo()
742 	df->za[df->f1 & D_FREG_MASK].z1 = cpu_to_le16(new_z1);  in hfcpci_fill_dfifo()
744 	df->f1 = new_f1;	/* next frame */  in hfcpci_fill_dfifo()