266 static struct pf_unit *pf_current;/* unit of current request */  variable
705 	return (((status_reg(pf_current) & (STAT_BUSY | pf_mask)) == pf_mask));  in pf_ready()
749 	pf_current = pf_req->q->disk->private_data;  in pf_request()
765 		pi_do_claimed(pf_current->pi, do_pf_read);  in pf_request()
767 		pi_do_claimed(pf_current->pi, do_pf_write);  in pf_request()
831 	if (pf_start(pf_current, ATAPI_READ_10, pf_block, pf_run)) {  in do_pf_read_start()
832 		pi_disconnect(pf_current->pi);  in do_pf_read_start()
835 			pi_do_claimed(pf_current->pi, do_pf_read_start);  in do_pf_read_start()
848 		if (pf_wait(pf_current, STAT_BUSY, STAT_DRQ | STAT_ERR,  in do_pf_read_drq()
850 			pi_disconnect(pf_current->pi);  in do_pf_read_drq()
852 				pf_req_sense(pf_current, 0);  in do_pf_read_drq()
854 				pi_do_claimed(pf_current->pi, do_pf_read_start);  in do_pf_read_drq()
860 		pi_read_block(pf_current->pi, pf_buf, 512);  in do_pf_read_drq()
864 	pi_disconnect(pf_current->pi);  in do_pf_read_drq()
877 	if (pf_start(pf_current, ATAPI_WRITE_10, pf_block, pf_run)) {  in do_pf_write_start()
878 		pi_disconnect(pf_current->pi);  in do_pf_write_start()
881 			pi_do_claimed(pf_current->pi, do_pf_write_start);  in do_pf_write_start()
889 		if (pf_wait(pf_current, STAT_BUSY, STAT_DRQ | STAT_ERR,  in do_pf_write_start()
891 			pi_disconnect(pf_current->pi);  in do_pf_write_start()
894 				pi_do_claimed(pf_current->pi, do_pf_write_start);  in do_pf_write_start()
900 		pi_write_block(pf_current->pi, pf_buf, 512);  in do_pf_write_start()
910 	if (pf_wait(pf_current, STAT_BUSY, 0, "write block", "done") & STAT_ERR) {  in do_pf_write_done()
911 		pi_disconnect(pf_current->pi);  in do_pf_write_done()
914 			pi_do_claimed(pf_current->pi, do_pf_write_start);  in do_pf_write_done()
920 	pi_disconnect(pf_current->pi);  in do_pf_write_done()