322 	int actlen, off;  in cdceem_handle_cmd()  local
325 	off = *offp;  in cdceem_handle_cmd()
341 		if (pktlen > (actlen - off)) {  in cdceem_handle_cmd()
344 			    pktlen, actlen - off);  in cdceem_handle_cmd()
357 		usbd_copy_out(pc, off, sc->sc_echo_buffer, pktlen);  in cdceem_handle_cmd()
358 		off += pktlen;  in cdceem_handle_cmd()
365 		if (pktlen > (actlen - off)) {  in cdceem_handle_cmd()
369 			    pktlen, actlen - off);  in cdceem_handle_cmd()
380 		usbd_copy_out(pc, off, sc->sc_echo_buffer, pktlen);  in cdceem_handle_cmd()
381 		off += pktlen;  in cdceem_handle_cmd()
415 	*offp = off;  in cdceem_handle_cmd()
429 	int off;  in cdceem_handle_data()  local
431 	off = *offp;  in cdceem_handle_data()
451 	if (pktlen > (actlen - off)) {  in cdceem_handle_data()
454 		    pktlen, actlen - off);  in cdceem_handle_data()
475 	usbd_copy_out(pc, off, mtod(m, uint8_t *), pktlen);  in cdceem_handle_data()
476 	off += pktlen;  in cdceem_handle_data()
478 	usbd_copy_out(pc, off, &received_crc, sizeof(received_crc));  in cdceem_handle_data()
479 	off += sizeof(received_crc);  in cdceem_handle_data()
499 	*offp = off;  in cdceem_handle_data()
507 	int actlen, aframes, off;  in cdceem_bulk_read_callback()  local
519 		off = 0;  in cdceem_bulk_read_callback()
521 		while ((off + sizeof(hdr)) <= actlen) {  in cdceem_bulk_read_callback()
522 			usbd_copy_out(pc, off, &hdr, sizeof(hdr));  in cdceem_bulk_read_callback()
524 			off += sizeof(hdr);  in cdceem_bulk_read_callback()
534 				cdceem_handle_cmd(xfer, hdr, &off);  in cdceem_bulk_read_callback()
536 				cdceem_handle_data(xfer, hdr, &off);  in cdceem_bulk_read_callback()
539 			KASSERT(off <= actlen,  in cdceem_bulk_read_callback()
540 			    ("%s: went past the buffer, off %d, actlen %d",  in cdceem_bulk_read_callback()
541 			     __func__, off, actlen));  in cdceem_bulk_read_callback()
570 	int maxlen __diagused, off;  in cdceem_send_echo()  local
573 	off = *offp;  in cdceem_send_echo()
581 	KASSERT(off + sizeof(hdr) + sizeof(CDCEEM_ECHO_PAYLOAD) < maxlen,  in cdceem_send_echo()
583 	    off + sizeof(hdr) + sizeof(CDCEEM_ECHO_PAYLOAD)));  in cdceem_send_echo()
592 	usbd_copy_in(pc, off, &hdr, sizeof(hdr));  in cdceem_send_echo()
593 	off += sizeof(hdr);  in cdceem_send_echo()
595 	usbd_copy_in(pc, off, CDCEEM_ECHO_PAYLOAD,  in cdceem_send_echo()
597 	off += sizeof(CDCEEM_ECHO_PAYLOAD);  in cdceem_send_echo()
601 	*offp = off;  in cdceem_send_echo()
609 	int maxlen __diagused, off;  in cdceem_send_echo_response()  local
612 	off = *offp;  in cdceem_send_echo_response()
617 	KASSERT(off + sizeof(hdr) + sc->sc_echo_len < maxlen,  in cdceem_send_echo_response()
619 	    off + sizeof(hdr) + sc->sc_echo_len));  in cdceem_send_echo_response()
630 	usbd_copy_in(pc, off, &hdr, sizeof(hdr));  in cdceem_send_echo_response()
631 	off += sizeof(hdr);  in cdceem_send_echo_response()
633 	usbd_copy_in(pc, off, sc->sc_echo_buffer, sc->sc_echo_len);  in cdceem_send_echo_response()
634 	off += sc->sc_echo_len;  in cdceem_send_echo_response()
639 	*offp = off;  in cdceem_send_echo_response()
649 	int maxlen __diagused, off;  in cdceem_send_data()  local
653 	off = *offp;  in cdceem_send_data()
668 	KASSERT(off + sizeof(hdr) + m->m_pkthdr.len + 4 < maxlen,  in cdceem_send_data()
670 	    off + sizeof(hdr) + m->m_pkthdr.len + 4));  in cdceem_send_data()
681 	usbd_copy_in(pc, off, &hdr, sizeof(hdr));  in cdceem_send_data()
682 	off += sizeof(hdr);  in cdceem_send_data()
684 	usbd_m_copy_in(pc, off, m, 0, m->m_pkthdr.len);  in cdceem_send_data()
685 	off += m->m_pkthdr.len;  in cdceem_send_data()
694 	usbd_copy_in(pc, off, &crc, sizeof(crc));  in cdceem_send_data()
695 	off += sizeof(crc);  in cdceem_send_data()
705 	*offp = off;  in cdceem_send_data()
713 	int actlen, aframes, maxlen __diagused, off;  in cdceem_bulk_write_callback()  local
729 		off = 0;  in cdceem_bulk_write_callback()
733 			cdceem_send_echo(xfer, &off);  in cdceem_bulk_write_callback()
735 			cdceem_send_echo_response(xfer, &off);  in cdceem_bulk_write_callback()
737 			cdceem_send_data(xfer, &off);  in cdceem_bulk_write_callback()
740 		KASSERT(off <= maxlen,  in cdceem_bulk_write_callback()
741 		    ("%s: went past the buffer, off %d, maxlen %d",  in cdceem_bulk_write_callback()
742 		     __func__, off, maxlen));  in cdceem_bulk_write_callback()
744 		if (off > 0) {  in cdceem_bulk_write_callback()
745 			CDCEEM_DEBUG(sc, "starting transfer, length %d", off);  in cdceem_bulk_write_callback()
746 			usbd_xfer_set_frame_len(xfer, 0, off);  in cdceem_bulk_write_callback()