77 static int portman_free(struct portman *pm)  in portman_free()  argument
79 	kfree(pm);  in portman_free()
87 	struct portman *pm;  in portman_create()  local
91 	pm = kzalloc(sizeof(struct portman), GFP_KERNEL);  in portman_create()
92 	if (pm == NULL)   in portman_create()
96 	spin_lock_init(&pm->reg_lock);  in portman_create()
97 	pm->card = card;  in portman_create()
98 	pm->pardev = pardev;  in portman_create()
100 	*rchip = pm;  in portman_create()
180 static inline void portman_write_command(struct portman *pm, u8 value)  in portman_write_command()  argument
182 	parport_write_control(pm->pardev->port, value);  in portman_write_command()
185 static inline u8 portman_read_status(struct portman *pm)  in portman_read_status()  argument
187 	return parport_read_status(pm->pardev->port);  in portman_read_status()
190 static inline void portman_write_data(struct portman *pm, u8 value)  in portman_write_data()  argument
192 	parport_write_data(pm->pardev->port, value);  in portman_write_data()
195 static void portman_write_midi(struct portman *pm,   in portman_write_midi()  argument
217 		portman_write_command(pm, command);  in portman_write_midi()
223 		portman_write_data(pm, mididata);  in portman_write_midi()
228 	} while ((portman_read_status(pm) & TXEMPTY) != TXEMPTY);  in portman_write_midi()
235 	portman_write_command(pm, command | STROBE);  in portman_write_midi()
242 	while ((portman_read_status(pm) & ESTB) == 0)  in portman_write_midi()
246 	portman_write_command(pm, command);  in portman_write_midi()
248 	while ((portman_read_status(pm) & ESTB) == ESTB)  in portman_write_midi()
255 	while ((portman_read_status(pm) & BUSY) == BUSY)  in portman_write_midi()
267 static int portman_read_midi(struct portman *pm, int port)  in portman_read_midi()  argument
273 	portman_write_data(pm, 0);	/* Make sure edge is down. */  in portman_read_midi()
277 	portman_write_command(pm, cmdout);  in portman_read_midi()
279 	while ((portman_read_status(pm) & ESTB) == ESTB)  in portman_read_midi()
285 	if ((portman_read_status(pm) & RXAVAIL) == 0)  in portman_read_midi()
289 	portman_write_command(pm, cmdout | STROBE);	/* Write address+IE+Strobe. */  in portman_read_midi()
291 	while ((portman_read_status(pm) & ESTB) == 0)  in portman_read_midi()
295 	midi_data = (portman_read_status(pm) & 128);  in portman_read_midi()
296 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
299 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
300 	midi_data |= (portman_read_status(pm) >> 1) & 64;  in portman_read_midi()
301 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
304 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
305 	midi_data |= (portman_read_status(pm) >> 2) & 32;  in portman_read_midi()
306 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
309 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
310 	midi_data |= (portman_read_status(pm) >> 3) & 16;  in portman_read_midi()
311 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
314 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
315 	midi_data |= (portman_read_status(pm) >> 4) & 8;  in portman_read_midi()
316 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
319 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
320 	midi_data |= (portman_read_status(pm) >> 5) & 4;  in portman_read_midi()
321 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
324 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
325 	midi_data |= (portman_read_status(pm) >> 6) & 2;  in portman_read_midi()
326 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
329 	portman_write_data(pm, 0);	/* Cause falling edge while data settles. */  in portman_read_midi()
330 	midi_data |= (portman_read_status(pm) >> 7) & 1;  in portman_read_midi()
331 	portman_write_data(pm, 1);	/* Cause rising edge, which shifts data. */  in portman_read_midi()
332 	portman_write_data(pm, 0);	/* Return data clock low. */  in portman_read_midi()
336 	portman_write_command(pm, cmdout);	/* Output saved address+IE. */  in portman_read_midi()
339 	while ((portman_read_status(pm) & ESTB) == ESTB)  in portman_read_midi()
349 static int portman_data_avail(struct portman *pm, int channel)  in portman_data_avail()  argument
361 	portman_write_command(pm, command);  in portman_data_avail()
363 	if ((portman_read_status(pm) & RXAVAIL) == RXAVAIL)  in portman_data_avail()
374 static void portman_flush_input(struct portman *pm, unsigned char port)  in portman_flush_input()  argument
395 	portman_write_command(pm, command);  in portman_flush_input()
398 	portman_write_command(pm, command | STROBE);  in portman_flush_input()
401 	while ((portman_read_status(pm) & ESTB) == 0)  in portman_flush_input()
405 	portman_write_data(pm, 0);  in portman_flush_input()
409 		portman_write_data(pm, 1);  in portman_flush_input()
410 		portman_write_data(pm, 0);  in portman_flush_input()
414 	portman_write_command(pm, command | INT_EN);  in portman_flush_input()
417 	while ((portman_read_status(pm) & ESTB) == ESTB)  in portman_flush_input()
475 static int portman_device_init(struct portman *pm)  in portman_device_init()  argument
477 	portman_flush_input(pm, 0);  in portman_device_init()
478 	portman_flush_input(pm, 1);  in portman_device_init()
499 	struct portman *pm = substream->rmidi->private_data;  in snd_portman_midi_input_trigger()  local
502 	spin_lock_irqsave(&pm->reg_lock, flags);  in snd_portman_midi_input_trigger()
504 		pm->mode[substream->number] |= PORTMAN2X4_MODE_INPUT_TRIGGERED;  in snd_portman_midi_input_trigger()
506 		pm->mode[substream->number] &= ~PORTMAN2X4_MODE_INPUT_TRIGGERED;  in snd_portman_midi_input_trigger()
507 	spin_unlock_irqrestore(&pm->reg_lock, flags);  in snd_portman_midi_input_trigger()
513 	struct portman *pm = substream->rmidi->private_data;  in snd_portman_midi_output_trigger()  local
517 	spin_lock_irqsave(&pm->reg_lock, flags);  in snd_portman_midi_output_trigger()
520 			portman_write_midi(pm, substream->number, byte);  in snd_portman_midi_output_trigger()
522 	spin_unlock_irqrestore(&pm->reg_lock, flags);  in snd_portman_midi_output_trigger()
540 	struct portman *pm = card->private_data;  in snd_portman_rawmidi_create()  local
552 	rmidi->private_data = pm;  in snd_portman_rawmidi_create()
558 	pm->rmidi = rmidi;  in snd_portman_rawmidi_create()
578 		pm->midi_input[substream->number] = substream;  in snd_portman_rawmidi_create()
592 	struct portman *pm = ((struct snd_card*)userdata)->private_data;  in snd_portman_interrupt()  local
594 	spin_lock(&pm->reg_lock);  in snd_portman_interrupt()
597 	while ((portman_read_status(pm) & INT_REQ) == INT_REQ) {  in snd_portman_interrupt()
600 		if (portman_data_avail(pm, 0)) {  in snd_portman_interrupt()
602 			midivalue = portman_read_midi(pm, 0);  in snd_portman_interrupt()
604 			if (pm->mode[0] & PORTMAN2X4_MODE_INPUT_TRIGGERED)  in snd_portman_interrupt()
605 				snd_rawmidi_receive(pm->midi_input[0],  in snd_portman_interrupt()
611 		if (portman_data_avail(pm, 1)) {  in snd_portman_interrupt()
613 			midivalue = portman_read_midi(pm, 1);  in snd_portman_interrupt()
615 			if (pm->mode[1] & PORTMAN2X4_MODE_INPUT_TRIGGERED)  in snd_portman_interrupt()
616 				snd_rawmidi_receive(pm->midi_input[1],  in snd_portman_interrupt()
622 	spin_unlock(&pm->reg_lock);  in snd_portman_interrupt()
679 	struct portman *pm = card->private_data;  in snd_portman_card_private_free()  local
680 	struct pardevice *pardev = pm->pardev;  in snd_portman_card_private_free()
687 	portman_free(pm);  in snd_portman_card_private_free()
696 	struct portman *pm = NULL;  in snd_portman_probe()  local
742 	err = portman_create(card, pardev, &pm);  in snd_portman_probe()
747 	card->private_data = pm;  in snd_portman_probe()
763 	err = portman_device_init(pm);  in snd_portman_probe()