218 	struct pi_adapter *pi;  member
251 static inline int status_reg(struct pi_adapter *pi)  in status_reg()  argument
253 	return pi_read_regr(pi, 1, 6);  in status_reg()
256 static inline int read_reg(struct pi_adapter *pi, int reg)  in read_reg()  argument
258 	return pi_read_regr(pi, 0, reg);  in read_reg()
261 static inline void write_reg(struct pi_adapter *pi, int reg, int val)  in write_reg()  argument
263 	pi_write_regr(pi, 0, reg, val);  in write_reg()
274 	struct pi_adapter *pi = tape->pi;  in pt_wait()  local
277 	while ((((r = status_reg(pi)) & go) || (stop && (!(r & stop))))  in pt_wait()
282 		s = read_reg(pi, 7);  in pt_wait()
283 		e = read_reg(pi, 1);  in pt_wait()
284 		p = read_reg(pi, 2);  in pt_wait()
298 	struct pi_adapter *pi = tape->pi;  in pt_command()  local
299 	pi_connect(pi);  in pt_command()
301 	write_reg(pi, 6, DRIVE(tape));  in pt_command()
304 		pi_disconnect(pi);  in pt_command()
308 	write_reg(pi, 4, dlen % 256);  in pt_command()
309 	write_reg(pi, 5, dlen / 256);  in pt_command()
310 	write_reg(pi, 7, 0xa0);	/* ATAPI packet command */  in pt_command()
313 		pi_disconnect(pi);  in pt_command()
317 	if (read_reg(pi, 2) != 1) {  in pt_command()
319 		pi_disconnect(pi);  in pt_command()
323 	pi_write_block(pi, cmd, 12);  in pt_command()
330 	struct pi_adapter *pi = tape->pi;  in pt_completion()  local
336 	if (read_reg(pi, 7) & STAT_DRQ) {  in pt_completion()
337 		n = (((read_reg(pi, 4) + 256 * read_reg(pi, 5)) +  in pt_completion()
339 		p = read_reg(pi, 2) & 3;  in pt_completion()
341 			pi_write_block(pi, buf, n);  in pt_completion()
343 			pi_read_block(pi, buf, n);  in pt_completion()
348 	pi_disconnect(pi);  in pt_completion()
395 	struct pi_adapter *pi = tape->pi;  in pt_poll_dsc()  local
404 		pi_connect(pi);  in pt_poll_dsc()
405 		write_reg(pi, 6, DRIVE(tape));  in pt_poll_dsc()
406 		s = read_reg(pi, 7);  in pt_poll_dsc()
407 		e = read_reg(pi, 1);  in pt_poll_dsc()
408 		pi_disconnect(pi);  in pt_poll_dsc()
430 	pi_disconnect(tape->pi);  in pt_media_access_cmd()
452 	struct pi_adapter *pi = tape->pi;  in pt_reset()  local
456 	pi_connect(pi);  in pt_reset()
457 	write_reg(pi, 6, DRIVE(tape));  in pt_reset()
458 	write_reg(pi, 7, 8);  in pt_reset()
463 	while ((k++ < PT_RESET_TMO) && (status_reg(pi) & STAT_BUSY))  in pt_reset()
468 		flg &= (read_reg(pi, i + 1) == expect[i]);  in pt_reset()
473 			printk("%3x", read_reg(pi, i + 1));  in pt_reset()
479 	pi_disconnect(pi);  in pt_reset()
611 		tape->pi = &tape->pia;  in pt_detect()
622 		if (pi_init(tape->pi, 0, DU[D_PRT], DU[D_MOD], DU[D_UNI],  in pt_detect()
629 				pi_release(tape->pi);  in pt_detect()
634 		if (pi_init(tape->pi, 1, -1, -1, -1, -1, -1, pt_scratch,  in pt_detect()
640 				pi_release(tape->pi);  in pt_detect()
760 	struct pi_adapter *pi = tape->pi;  in pt_read()  local
805 				pi_disconnect(pi);  in pt_read()
813 			s = read_reg(pi, 7);  in pt_read()
818 			n = (read_reg(pi, 4) + 256 * read_reg(pi, 5));  in pt_read()
819 			p = (read_reg(pi, 2) & 3);  in pt_read()
821 				pi_disconnect(pi);  in pt_read()
831 				pi_read_block(pi, tape->bufptr, k);  in pt_read()
837 					pi_disconnect(pi);  in pt_read()
845 		pi_disconnect(pi);  in pt_read()
857 	struct pi_adapter *pi = tape->pi;  in pt_write()  local
906 				pi_disconnect(pi);  in pt_write()
914 			s = read_reg(pi, 7);  in pt_write()
919 			n = (read_reg(pi, 4) + 256 * read_reg(pi, 5));  in pt_write()
920 			p = (read_reg(pi, 2) & 3);  in pt_write()
922 				pi_disconnect(pi);  in pt_write()
936 					pi_disconnect(pi);  in pt_write()
939 				pi_write_block(pi, tape->bufptr, k);  in pt_write()
946 		pi_disconnect(pi);  in pt_write()
974 				pi_release(pt[unit].pi);  in pt_init()
1011 			pi_release(pt[unit].pi);  in pt_exit()