218 	struct pi_adapter *pi;  member
252 static inline int status_reg(struct pi_adapter *pi)  in status_reg()  argument
254 	return pi_read_regr(pi, 1, 6);  in status_reg()
257 static inline int read_reg(struct pi_adapter *pi, int reg)  in read_reg()  argument
259 	return pi_read_regr(pi, 0, reg);  in read_reg()
262 static inline void write_reg(struct pi_adapter *pi, int reg, int val)  in write_reg()  argument
264 	pi_write_regr(pi, 0, reg, val);  in write_reg()
275 	struct pi_adapter *pi = tape->pi;  in pt_wait()  local
278 	while ((((r = status_reg(pi)) & go) || (stop && (!(r & stop))))  in pt_wait()
283 		s = read_reg(pi, 7);  in pt_wait()
284 		e = read_reg(pi, 1);  in pt_wait()
285 		p = read_reg(pi, 2);  in pt_wait()
299 	struct pi_adapter *pi = tape->pi;  in pt_command()  local
300 	pi_connect(pi);  in pt_command()
302 	write_reg(pi, 6, DRIVE(tape));  in pt_command()
305 		pi_disconnect(pi);  in pt_command()
309 	write_reg(pi, 4, dlen % 256);  in pt_command()
310 	write_reg(pi, 5, dlen / 256);  in pt_command()
311 	write_reg(pi, 7, 0xa0);	/* ATAPI packet command */  in pt_command()
314 		pi_disconnect(pi);  in pt_command()
318 	if (read_reg(pi, 2) != 1) {  in pt_command()
320 		pi_disconnect(pi);  in pt_command()
324 	pi_write_block(pi, cmd, 12);  in pt_command()
331 	struct pi_adapter *pi = tape->pi;  in pt_completion()  local
337 	if (read_reg(pi, 7) & STAT_DRQ) {  in pt_completion()
338 		n = (((read_reg(pi, 4) + 256 * read_reg(pi, 5)) +  in pt_completion()
340 		p = read_reg(pi, 2) & 3;  in pt_completion()
342 			pi_write_block(pi, buf, n);  in pt_completion()
344 			pi_read_block(pi, buf, n);  in pt_completion()
349 	pi_disconnect(pi);  in pt_completion()
396 	struct pi_adapter *pi = tape->pi;  in pt_poll_dsc()  local
405 		pi_connect(pi);  in pt_poll_dsc()
406 		write_reg(pi, 6, DRIVE(tape));  in pt_poll_dsc()
407 		s = read_reg(pi, 7);  in pt_poll_dsc()
408 		e = read_reg(pi, 1);  in pt_poll_dsc()
409 		pi_disconnect(pi);  in pt_poll_dsc()
431 	pi_disconnect(tape->pi);  in pt_media_access_cmd()
453 	struct pi_adapter *pi = tape->pi;  in pt_reset()  local
457 	pi_connect(pi);  in pt_reset()
458 	write_reg(pi, 6, DRIVE(tape));  in pt_reset()
459 	write_reg(pi, 7, 8);  in pt_reset()
464 	while ((k++ < PT_RESET_TMO) && (status_reg(pi) & STAT_BUSY))  in pt_reset()
469 		flg &= (read_reg(pi, i + 1) == expect[i]);  in pt_reset()
474 			printk("%3x", read_reg(pi, i + 1));  in pt_reset()
480 	pi_disconnect(pi);  in pt_reset()
618 		tape->pi = &tape->pia;  in pt_detect()
629 		if (pi_init(tape->pi, 0, DU[D_PRT], DU[D_MOD], DU[D_UNI],  in pt_detect()
636 				pi_release(tape->pi);  in pt_detect()
641 		if (pi_init(tape->pi, 1, -1, -1, -1, -1, -1, pt_scratch,  in pt_detect()
647 				pi_release(tape->pi);  in pt_detect()
768 	struct pi_adapter *pi = tape->pi;  in pt_read()  local
813 				pi_disconnect(pi);  in pt_read()
821 			s = read_reg(pi, 7);  in pt_read()
826 			n = (read_reg(pi, 4) + 256 * read_reg(pi, 5));  in pt_read()
827 			p = (read_reg(pi, 2) & 3);  in pt_read()
829 				pi_disconnect(pi);  in pt_read()
839 				pi_read_block(pi, tape->bufptr, k);  in pt_read()
845 					pi_disconnect(pi);  in pt_read()
853 		pi_disconnect(pi);  in pt_read()
865 	struct pi_adapter *pi = tape->pi;  in pt_write()  local
914 				pi_disconnect(pi);  in pt_write()
922 			s = read_reg(pi, 7);  in pt_write()
927 			n = (read_reg(pi, 4) + 256 * read_reg(pi, 5));  in pt_write()
928 			p = (read_reg(pi, 2) & 3);  in pt_write()
930 				pi_disconnect(pi);  in pt_write()
944 					pi_disconnect(pi);  in pt_write()
947 				pi_write_block(pi, tape->bufptr, k);  in pt_write()
954 		pi_disconnect(pi);  in pt_write()
982 				pi_release(pt[unit].pi);  in pt_init()
1019 			pi_release(pt[unit].pi);  in pt_exit()