336 	dfifo_type *df;  in receive_dmsg()  local
339 	df = &((fifo_area *) (cs->hw.hfcpci.fifos))->d_chan.d_rx;  in receive_dmsg()
344 	while (((df->f1 & D_FREG_MASK) != (df->f2 & D_FREG_MASK)) && count--) {  in receive_dmsg()
345 		zp = &df->za[df->f2 & D_FREG_MASK];  in receive_dmsg()
352 				df->f1, df->f2, zp->z1, zp->z2, rcnt);  in receive_dmsg()
355 		    (df->data[zp->z1])) {  in receive_dmsg()
357 				debugl1(cs, "empty_fifo hfcpci packet inv. len %d or crc %d", rcnt, df->data[zp->z1]);  in receive_dmsg()
361 			df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) | (MAX_D_FRAMES + 1);	/* next buffer */  in receive_dmsg()
362 			df->za[df->f2 & D_FREG_MASK].z2 = (zp->z2 + rcnt) & (D_FIFO_SIZE - 1);  in receive_dmsg()
373 			ptr1 = df->data + zp->z2;	/* start of data */  in receive_dmsg()
379 				ptr1 = df->data;	/* start of buffer */  in receive_dmsg()
382 			df->f2 = ((df->f2 + 1) & MAX_D_FRAMES) | (MAX_D_FRAMES + 1);	/* next buffer */  in receive_dmsg()
383 			df->za[df->f2 & D_FREG_MASK].z2 = (zp->z2 + total) & (D_FIFO_SIZE - 1);  in receive_dmsg()
522 	dfifo_type *df;  in hfcpci_fill_dfifo()  local
530 	df = &((fifo_area *) (cs->hw.hfcpci.fifos))->d_chan.d_tx;  in hfcpci_fill_dfifo()
534 			df->f1, df->f2,  in hfcpci_fill_dfifo()
535 			df->za[df->f1 & D_FREG_MASK].z1);  in hfcpci_fill_dfifo()
536 	fcnt = df->f1 - df->f2;	/* frame count actually buffered */  in hfcpci_fill_dfifo()
548 	count = df->za[df->f2 & D_FREG_MASK].z2 - df->za[df->f1 & D_FREG_MASK].z1 - 1;  in hfcpci_fill_dfifo()
561 	new_z1 = (df->za[df->f1 & D_FREG_MASK].z1 + count) & (D_FIFO_SIZE - 1);  in hfcpci_fill_dfifo()
562 	new_f1 = ((df->f1 + 1) & D_FREG_MASK) | (D_FREG_MASK + 1);  in hfcpci_fill_dfifo()
564 	dst = df->data + df->za[df->f1 & D_FREG_MASK].z1;  in hfcpci_fill_dfifo()
565 	maxlen = D_FIFO_SIZE - df->za[df->f1 & D_FREG_MASK].z1;		/* end fifo */  in hfcpci_fill_dfifo()
572 		dst = df->data;	/* start of buffer */  in hfcpci_fill_dfifo()
576 	df->za[new_f1 & D_FREG_MASK].z1 = new_z1;	/* for next buffer */  in hfcpci_fill_dfifo()
577 	df->za[df->f1 & D_FREG_MASK].z1 = new_z1;	/* new pos actual buffer */  in hfcpci_fill_dfifo()
578 	df->f1 = new_f1;	/* next frame */  in hfcpci_fill_dfifo()