264 static struct pf_unit *pf_current;/* unit of current request */  variable
765 	return (((status_reg(pf_current) & (STAT_BUSY | pf_mask)) == pf_mask));  in pf_ready()
787 	pf_current = pf_req->rq_disk->private_data;  in do_pf_request()
803 		pi_do_claimed(pf_current->pi, do_pf_read);  in do_pf_request()
805 		pi_do_claimed(pf_current->pi, do_pf_write);  in do_pf_request()
856 	if (pf_start(pf_current, ATAPI_READ_10, pf_block, pf_run)) {  in do_pf_read_start()
857 		pi_disconnect(pf_current->pi);  in do_pf_read_start()
860 			pi_do_claimed(pf_current->pi, do_pf_read_start);  in do_pf_read_start()
873 		if (pf_wait(pf_current, STAT_BUSY, STAT_DRQ | STAT_ERR,  in do_pf_read_drq()
875 			pi_disconnect(pf_current->pi);  in do_pf_read_drq()
877 				pf_req_sense(pf_current, 0);  in do_pf_read_drq()
879 				pi_do_claimed(pf_current->pi, do_pf_read_start);  in do_pf_read_drq()
885 		pi_read_block(pf_current->pi, pf_buf, 512);  in do_pf_read_drq()
889 	pi_disconnect(pf_current->pi);  in do_pf_read_drq()
902 	if (pf_start(pf_current, ATAPI_WRITE_10, pf_block, pf_run)) {  in do_pf_write_start()
903 		pi_disconnect(pf_current->pi);  in do_pf_write_start()
906 			pi_do_claimed(pf_current->pi, do_pf_write_start);  in do_pf_write_start()
914 		if (pf_wait(pf_current, STAT_BUSY, STAT_DRQ | STAT_ERR,  in do_pf_write_start()
916 			pi_disconnect(pf_current->pi);  in do_pf_write_start()
919 				pi_do_claimed(pf_current->pi, do_pf_write_start);  in do_pf_write_start()
925 		pi_write_block(pf_current->pi, pf_buf, 512);  in do_pf_write_start()
935 	if (pf_wait(pf_current, STAT_BUSY, 0, "write block", "done") & STAT_ERR) {  in do_pf_write_done()
936 		pi_disconnect(pf_current->pi);  in do_pf_write_done()
939 			pi_do_claimed(pf_current->pi, do_pf_write_start);  in do_pf_write_done()
945 	pi_disconnect(pf_current->pi);  in do_pf_write_done()