40 size_t parport_ieee1284_write_compat (struct parport *port,  in parport_ieee1284_write_compat()  argument
48 	struct pardevice *dev = port->physport->cad;  in parport_ieee1284_write_compat()
52 	if (port->irq != PARPORT_IRQ_NONE) {  in parport_ieee1284_write_compat()
53 		parport_enable_irq (port);  in parport_ieee1284_write_compat()
57 	port->physport->ieee1284.phase = IEEE1284_PH_FWD_DATA;  in parport_ieee1284_write_compat()
58 	parport_write_control (port, ctl);  in parport_ieee1284_write_compat()
59 	parport_data_forward (port);  in parport_ieee1284_write_compat()
71 			if (!parport_wait_peripheral (port, mask, val))  in parport_ieee1284_write_compat()
76 			if ((parport_read_status (port) &  in parport_ieee1284_write_compat()
104 				parport_wait_event (port, wait);  in parport_ieee1284_write_compat()
117 		DPRINTK (KERN_DEBUG "%s: Timed out\n", port->name);  in parport_ieee1284_write_compat()
123 		parport_write_data (port, byte);  in parport_ieee1284_write_compat()
127 		parport_write_control (port, ctl | PARPORT_CONTROL_STROBE);  in parport_ieee1284_write_compat()
130 		parport_write_control (port, ctl);  in parport_ieee1284_write_compat()
143 	port->physport->ieee1284.phase = IEEE1284_PH_FWD_IDLE;  in parport_ieee1284_write_compat()
149 size_t parport_ieee1284_read_nibble (struct parport *port,   in parport_ieee1284_read_nibble()  argument
166 		    (parport_read_status(port) & PARPORT_STATUS_ERROR)) {  in parport_ieee1284_read_nibble()
171 		parport_frob_control (port,  in parport_ieee1284_read_nibble()
176 		port->ieee1284.phase = IEEE1284_PH_REV_DATA;  in parport_ieee1284_read_nibble()
177 		if (parport_wait_peripheral (port,  in parport_ieee1284_read_nibble()
182 				 port->name, i/2);  in parport_ieee1284_read_nibble()
183 			parport_frob_control (port, PARPORT_CONTROL_AUTOFD, 0);  in parport_ieee1284_read_nibble()
189 		nibble = parport_read_status (port) >> 3;  in parport_ieee1284_read_nibble()
196 		parport_frob_control (port, PARPORT_CONTROL_AUTOFD, 0);  in parport_ieee1284_read_nibble()
199 		if (parport_wait_peripheral (port,  in parport_ieee1284_read_nibble()
205 				 port->name);  in parport_ieee1284_read_nibble()
219 		if (parport_read_status (port) & PARPORT_STATUS_ERROR) {  in parport_ieee1284_read_nibble()
223 				port->name, i/2);  in parport_ieee1284_read_nibble()
226 			parport_frob_control (port,  in parport_ieee1284_read_nibble()
229 			port->physport->ieee1284.phase = IEEE1284_PH_REV_IDLE;  in parport_ieee1284_read_nibble()
232 			port->physport->ieee1284.phase = IEEE1284_PH_HBUSY_DAVAIL;  in parport_ieee1284_read_nibble()
240 size_t parport_ieee1284_read_byte (struct parport *port,  in parport_ieee1284_read_byte()  argument
254 		if (parport_read_status (port) & PARPORT_STATUS_ERROR) {  in parport_ieee1284_read_byte()
259 		parport_data_reverse (port);  in parport_ieee1284_read_byte()
262 		parport_frob_control (port,  in parport_ieee1284_read_byte()
267 		port->physport->ieee1284.phase = IEEE1284_PH_REV_DATA;  in parport_ieee1284_read_byte()
268 		if (parport_wait_peripheral (port,  in parport_ieee1284_read_byte()
272 			parport_frob_control (port, PARPORT_CONTROL_AUTOFD,  in parport_ieee1284_read_byte()
275 				 port->name);  in parport_ieee1284_read_byte()
279 		byte = parport_read_data (port);  in parport_ieee1284_read_byte()
283 		parport_frob_control (port, PARPORT_CONTROL_AUTOFD, 0);  in parport_ieee1284_read_byte()
286 		if (parport_wait_peripheral (port,  in parport_ieee1284_read_byte()
291 				 port->name);  in parport_ieee1284_read_byte()
296 		parport_frob_control (port,  in parport_ieee1284_read_byte()
302 		parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);  in parport_ieee1284_read_byte()
307 		if (parport_read_status (port) & PARPORT_STATUS_ERROR) {  in parport_ieee1284_read_byte()
311 				 port->name, count);  in parport_ieee1284_read_byte()
314 			parport_frob_control (port,  in parport_ieee1284_read_byte()
317 			port->physport->ieee1284.phase = IEEE1284_PH_REV_IDLE;  in parport_ieee1284_read_byte()
320 			port->physport->ieee1284.phase = IEEE1284_PH_HBUSY_DAVAIL;  in parport_ieee1284_read_byte()
334 int ecp_forward_to_reverse (struct parport *port)  in ecp_forward_to_reverse()  argument
339 	parport_frob_control (port,  in ecp_forward_to_reverse()
342 	parport_data_reverse (port);  in ecp_forward_to_reverse()
346 	parport_frob_control (port,  in ecp_forward_to_reverse()
351 	retval = parport_wait_peripheral (port,  in ecp_forward_to_reverse()
356 			 port->name);  in ecp_forward_to_reverse()
357 		port->ieee1284.phase = IEEE1284_PH_REV_IDLE;  in ecp_forward_to_reverse()
360 			 port->name);  in ecp_forward_to_reverse()
361 		port->ieee1284.phase = IEEE1284_PH_ECP_DIR_UNKNOWN;  in ecp_forward_to_reverse()
368 int ecp_reverse_to_forward (struct parport *port)  in ecp_reverse_to_forward()  argument
373 	parport_frob_control (port,  in ecp_reverse_to_forward()
380 	retval = parport_wait_peripheral (port,  in ecp_reverse_to_forward()
385 		parport_data_forward (port);  in ecp_reverse_to_forward()
387 			 port->name);  in ecp_reverse_to_forward()
388 		port->ieee1284.phase = IEEE1284_PH_FWD_IDLE;  in ecp_reverse_to_forward()
392 			 port->name);  in ecp_reverse_to_forward()
393 		port->ieee1284.phase = IEEE1284_PH_ECP_DIR_UNKNOWN;  in ecp_reverse_to_forward()
403 size_t parport_ieee1284_ecp_write_data (struct parport *port,  in parport_ieee1284_ecp_write_data()  argument
414 	port = port->physport;  in parport_ieee1284_ecp_write_data()
416 	if (port->ieee1284.phase != IEEE1284_PH_FWD_IDLE)  in parport_ieee1284_ecp_write_data()
417 		if (ecp_reverse_to_forward (port))  in parport_ieee1284_ecp_write_data()
420 	port->ieee1284.phase = IEEE1284_PH_FWD_DATA;  in parport_ieee1284_ecp_write_data()
423 	parport_frob_control (port,  in parport_ieee1284_ecp_write_data()
429 		unsigned long expire = jiffies + port->cad->timeout;  in parport_ieee1284_ecp_write_data()
434 		parport_write_data (port, byte);  in parport_ieee1284_ecp_write_data()
435 		parport_frob_control (port, PARPORT_CONTROL_STROBE,  in parport_ieee1284_ecp_write_data()
439 			if (!parport_wait_peripheral (port,  in parport_ieee1284_ecp_write_data()
444 				parport_frob_control (port,  in parport_ieee1284_ecp_write_data()
452 		DPRINTK (KERN_DEBUG "%s: ECP transfer stalled!\n", port->name);  in parport_ieee1284_ecp_write_data()
454 		parport_frob_control (port, PARPORT_CONTROL_INIT,  in parport_ieee1284_ecp_write_data()
457 		if (parport_read_status (port) & PARPORT_STATUS_PAPEROUT) {  in parport_ieee1284_ecp_write_data()
459 			parport_frob_control (port, PARPORT_CONTROL_INIT, 0);  in parport_ieee1284_ecp_write_data()
463 		parport_frob_control (port, PARPORT_CONTROL_INIT, 0);  in parport_ieee1284_ecp_write_data()
465 		if (!(parport_read_status (port) & PARPORT_STATUS_PAPEROUT))  in parport_ieee1284_ecp_write_data()
469 			 port->name);  in parport_ieee1284_ecp_write_data()
474 		parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);  in parport_ieee1284_ecp_write_data()
476 		if (parport_wait_peripheral (port,  in parport_ieee1284_ecp_write_data()
483 	port->ieee1284.phase = IEEE1284_PH_FWD_IDLE;  in parport_ieee1284_ecp_write_data()
490 size_t parport_ieee1284_ecp_read_data (struct parport *port,  in parport_ieee1284_ecp_read_data()  argument
496 	struct pardevice *dev = port->cad;  in parport_ieee1284_ecp_read_data()
503 	port = port->physport;  in parport_ieee1284_ecp_read_data()
505 	if (port->ieee1284.phase != IEEE1284_PH_REV_IDLE)  in parport_ieee1284_ecp_read_data()
506 		if (ecp_forward_to_reverse (port))  in parport_ieee1284_ecp_read_data()
509 	port->ieee1284.phase = IEEE1284_PH_REV_DATA;  in parport_ieee1284_ecp_read_data()
512 	ctl = parport_read_control (port);  in parport_ieee1284_ecp_read_data()
515 	parport_write_control (port,  in parport_ieee1284_ecp_read_data()
524 		while (parport_wait_peripheral (port, PARPORT_STATUS_ACK, 0)) {  in parport_ieee1284_ecp_read_data()
537 			if (count && dev->port->irq != PARPORT_IRQ_NONE) {  in parport_ieee1284_ecp_read_data()
544 				parport_wait_event (port, msecs_to_jiffies(40));  in parport_ieee1284_ecp_read_data()
557 			command = (parport_read_status (port) &  in parport_ieee1284_ecp_read_data()
561 		byte = parport_read_data (port);  in parport_ieee1284_ecp_read_data()
569 					 port->name, byte);  in parport_ieee1284_ecp_read_data()
572 			else if (port->ieee1284.mode != IEEE1284_MODE_ECPRLE)  in parport_ieee1284_ecp_read_data()
575 					 port->name);  in parport_ieee1284_ecp_read_data()
582 					 "for next time\n", port->name,  in parport_ieee1284_ecp_read_data()
591 		parport_write_control (port, ctl);  in parport_ieee1284_ecp_read_data()
594 		if (parport_wait_peripheral (port, PARPORT_STATUS_ACK,  in parport_ieee1284_ecp_read_data()
603 					port->name, byte);  in parport_ieee1284_ecp_read_data()
609 		parport_write_control (port,  in parport_ieee1284_ecp_read_data()
623 				 port->name, rle_count);  in parport_ieee1284_ecp_read_data()
632 	port->ieee1284.phase = IEEE1284_PH_REV_IDLE;  in parport_ieee1284_ecp_read_data()
638 size_t parport_ieee1284_ecp_write_addr (struct parport *port,  in parport_ieee1284_ecp_write_addr()  argument
649 	port = port->physport;  in parport_ieee1284_ecp_write_addr()
651 	if (port->ieee1284.phase != IEEE1284_PH_FWD_IDLE)  in parport_ieee1284_ecp_write_addr()
652 		if (ecp_reverse_to_forward (port))  in parport_ieee1284_ecp_write_addr()
655 	port->ieee1284.phase = IEEE1284_PH_FWD_DATA;  in parport_ieee1284_ecp_write_addr()
658 	parport_frob_control (port,  in parport_ieee1284_ecp_write_addr()
665 		unsigned long expire = jiffies + port->cad->timeout;  in parport_ieee1284_ecp_write_addr()
670 		parport_write_data (port, byte);  in parport_ieee1284_ecp_write_addr()
671 		parport_frob_control (port, PARPORT_CONTROL_STROBE,  in parport_ieee1284_ecp_write_addr()
675 			if (!parport_wait_peripheral (port,  in parport_ieee1284_ecp_write_addr()
680 				parport_frob_control (port,  in parport_ieee1284_ecp_write_addr()
688 		DPRINTK (KERN_DEBUG "%s: ECP transfer stalled!\n", port->name);  in parport_ieee1284_ecp_write_addr()
690 		parport_frob_control (port, PARPORT_CONTROL_INIT,  in parport_ieee1284_ecp_write_addr()
693 		if (parport_read_status (port) & PARPORT_STATUS_PAPEROUT) {  in parport_ieee1284_ecp_write_addr()
695 			parport_frob_control (port, PARPORT_CONTROL_INIT, 0);  in parport_ieee1284_ecp_write_addr()
699 		parport_frob_control (port, PARPORT_CONTROL_INIT, 0);  in parport_ieee1284_ecp_write_addr()
701 		if (!(parport_read_status (port) & PARPORT_STATUS_PAPEROUT))  in parport_ieee1284_ecp_write_addr()
705 			 port->name);  in parport_ieee1284_ecp_write_addr()
710 		parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);  in parport_ieee1284_ecp_write_addr()
712 		if (parport_wait_peripheral (port,  in parport_ieee1284_ecp_write_addr()
719 	port->ieee1284.phase = IEEE1284_PH_FWD_IDLE;  in parport_ieee1284_ecp_write_addr()
730 size_t parport_ieee1284_epp_write_data (struct parport *port,  in parport_ieee1284_epp_write_data()  argument
738 	parport_frob_control (port,  in parport_ieee1284_epp_write_data()
745 	port->ops->data_forward (port);  in parport_ieee1284_epp_write_data()
748 		parport_write_data (port, *bp);  in parport_ieee1284_epp_write_data()
749 		parport_frob_control (port, PARPORT_CONTROL_AUTOFD,  in parport_ieee1284_epp_write_data()
753 		if (parport_poll_peripheral (port, PARPORT_STATUS_BUSY, 0, 10))  in parport_ieee1284_epp_write_data()
757 		parport_frob_control (port, PARPORT_CONTROL_AUTOFD, 0);  in parport_ieee1284_epp_write_data()
760 		if (parport_poll_peripheral (port, PARPORT_STATUS_BUSY,  in parport_ieee1284_epp_write_data()
768 	parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);  in parport_ieee1284_epp_write_data()
774 size_t parport_ieee1284_epp_read_data (struct parport *port,  in parport_ieee1284_epp_read_data()  argument
782 	parport_frob_control (port,  in parport_ieee1284_epp_read_data()
788 	port->ops->data_reverse (port);  in parport_ieee1284_epp_read_data()
791 		parport_frob_control (port,  in parport_ieee1284_epp_read_data()
795 		if (parport_wait_peripheral (port, PARPORT_STATUS_BUSY, 0)) {  in parport_ieee1284_epp_read_data()
799 		*bp = parport_read_data (port);  in parport_ieee1284_epp_read_data()
802 		parport_frob_control (port, PARPORT_CONTROL_AUTOFD, 0);  in parport_ieee1284_epp_read_data()
805 		if (parport_poll_peripheral (port, PARPORT_STATUS_BUSY,  in parport_ieee1284_epp_read_data()
812 	port->ops->data_forward (port);  in parport_ieee1284_epp_read_data()
818 size_t parport_ieee1284_epp_write_addr (struct parport *port,  in parport_ieee1284_epp_write_addr()  argument
826 	parport_frob_control (port,  in parport_ieee1284_epp_write_addr()
833 	port->ops->data_forward (port);  in parport_ieee1284_epp_write_addr()
836 		parport_write_data (port, *bp);  in parport_ieee1284_epp_write_addr()
837 		parport_frob_control (port, PARPORT_CONTROL_SELECT,  in parport_ieee1284_epp_write_addr()
841 		if (parport_poll_peripheral (port, PARPORT_STATUS_BUSY, 0, 10))  in parport_ieee1284_epp_write_addr()
845 		parport_frob_control (port, PARPORT_CONTROL_SELECT, 0);  in parport_ieee1284_epp_write_addr()
848 		if (parport_poll_peripheral (port, PARPORT_STATUS_BUSY,  in parport_ieee1284_epp_write_addr()
856 	parport_frob_control (port, PARPORT_CONTROL_STROBE, 0);  in parport_ieee1284_epp_write_addr()
862 size_t parport_ieee1284_epp_read_addr (struct parport *port,  in parport_ieee1284_epp_read_addr()  argument
870 	parport_frob_control (port,  in parport_ieee1284_epp_read_addr()
876 	port->ops->data_reverse (port);  in parport_ieee1284_epp_read_addr()
879 		parport_frob_control (port, PARPORT_CONTROL_SELECT,  in parport_ieee1284_epp_read_addr()
883 		if (parport_wait_peripheral (port, PARPORT_STATUS_BUSY, 0)) {  in parport_ieee1284_epp_read_addr()
887 		*bp = parport_read_data (port);  in parport_ieee1284_epp_read_addr()
890 		parport_frob_control (port, PARPORT_CONTROL_SELECT,  in parport_ieee1284_epp_read_addr()
894 		if (parport_poll_peripheral (port, PARPORT_STATUS_BUSY,   in parport_ieee1284_epp_read_addr()
900 	port->ops->data_forward (port);  in parport_ieee1284_epp_read_addr()