426 static int pf_wait(struct pf_unit *pf, int go, int stop, char *fun, char *msg)  in pf_wait()  argument
441 		if (fun)  in pf_wait()
444 			       pf->name, fun, msg, r, s, e, j, p);  in pf_wait()
450 static int pf_command(struct pf_unit *pf, char *cmd, int dlen, char *fun)  in pf_command()  argument
456 	if (pf_wait(pf, STAT_BUSY | STAT_DRQ, 0, fun, "before command")) {  in pf_command()
465 	if (pf_wait(pf, STAT_BUSY, STAT_DRQ, fun, "command DRQ")) {  in pf_command()
471 		printk("%s: %s: command phase error\n", pf->name, fun);  in pf_command()
481 static int pf_completion(struct pf_unit *pf, char *buf, char *fun)  in pf_completion()  argument
486 		    fun, "completion");  in pf_completion()
494 	s = pf_wait(pf, STAT_BUSY, STAT_READY | STAT_ERR, fun, "data done");  in pf_completion()
518 static int pf_atapi(struct pf_unit *pf, char *cmd, int dlen, char *buf, char *fun)  in pf_atapi()  argument
522 	r = pf_command(pf, cmd, dlen, fun);  in pf_atapi()
525 		r = pf_completion(pf, buf, fun);  in pf_atapi()
527 		pf_req_sense(pf, !fun);  in pf_atapi()