1332 static int snd_hdsp_midi_output_write (struct hdsp_midi *hmidi)  in snd_hdsp_midi_output_write()  argument
1342 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_output_write()
1343 	if (hmidi->output) {  in snd_hdsp_midi_output_write()
1344 		if (!snd_rawmidi_transmit_empty (hmidi->output)) {  in snd_hdsp_midi_output_write()
1345 			if ((n_pending = snd_hdsp_midi_output_possible (hmidi->hdsp, hmidi->id)) > 0) {  in snd_hdsp_midi_output_write()
1349 				if ((to_write = snd_rawmidi_transmit (hmidi->output, buf, n_pending)) > 0) {  in snd_hdsp_midi_output_write()
1351 						snd_hdsp_midi_write_byte (hmidi->hdsp, hmidi->id, buf[i]);  in snd_hdsp_midi_output_write()
1356 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_output_write()
1360 static int snd_hdsp_midi_input_read (struct hdsp_midi *hmidi)  in snd_hdsp_midi_input_read()  argument
1367 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_input_read()
1368 	if ((n_pending = snd_hdsp_midi_input_available (hmidi->hdsp, hmidi->id)) > 0) {  in snd_hdsp_midi_input_read()
1369 		if (hmidi->input) {  in snd_hdsp_midi_input_read()
1373 				buf[i] = snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);  in snd_hdsp_midi_input_read()
1375 				snd_rawmidi_receive (hmidi->input, buf, n_pending);  in snd_hdsp_midi_input_read()
1379 				snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);  in snd_hdsp_midi_input_read()
1382 	hmidi->pending = 0;  in snd_hdsp_midi_input_read()
1383 	if (hmidi->id)  in snd_hdsp_midi_input_read()
1384 		hmidi->hdsp->control_register |= HDSP_Midi1InterruptEnable;  in snd_hdsp_midi_input_read()
1386 		hmidi->hdsp->control_register |= HDSP_Midi0InterruptEnable;  in snd_hdsp_midi_input_read()
1387 	hdsp_write(hmidi->hdsp, HDSP_controlRegister, hmidi->hdsp->control_register);  in snd_hdsp_midi_input_read()
1388 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_input_read()
1389 	return snd_hdsp_midi_output_write (hmidi);  in snd_hdsp_midi_input_read()
1395 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_input_trigger()  local
1399 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_input_trigger()
1400 	hdsp = hmidi->hdsp;  in snd_hdsp_midi_input_trigger()
1401 	ie = hmidi->id ? HDSP_Midi1InterruptEnable : HDSP_Midi0InterruptEnable;  in snd_hdsp_midi_input_trigger()
1405 			snd_hdsp_flush_midi_input (hdsp, hmidi->id);  in snd_hdsp_midi_input_trigger()
1419 	struct hdsp_midi *hmidi = (struct hdsp_midi *) data;  in snd_hdsp_midi_output_timer()  local
1422 	snd_hdsp_midi_output_write(hmidi);  in snd_hdsp_midi_output_timer()
1423 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_output_timer()
1431 	if (hmidi->istimer)  in snd_hdsp_midi_output_timer()
1432 		mod_timer(&hmidi->timer, 1 + jiffies);  in snd_hdsp_midi_output_timer()
1434 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_output_timer()
1439 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_output_trigger()  local
1442 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_output_trigger()
1443 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_output_trigger()
1445 		if (!hmidi->istimer) {  in snd_hdsp_midi_output_trigger()
1446 			setup_timer(&hmidi->timer, snd_hdsp_midi_output_timer,  in snd_hdsp_midi_output_trigger()
1447 				    (unsigned long) hmidi);  in snd_hdsp_midi_output_trigger()
1448 			mod_timer(&hmidi->timer, 1 + jiffies);  in snd_hdsp_midi_output_trigger()
1449 			hmidi->istimer++;  in snd_hdsp_midi_output_trigger()
1452 		if (hmidi->istimer && --hmidi->istimer <= 0)  in snd_hdsp_midi_output_trigger()
1453 			del_timer (&hmidi->timer);  in snd_hdsp_midi_output_trigger()
1455 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_output_trigger()
1457 		snd_hdsp_midi_output_write(hmidi);  in snd_hdsp_midi_output_trigger()
1462 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_input_open()  local
1464 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_input_open()
1465 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_input_open()
1466 	snd_hdsp_flush_midi_input (hmidi->hdsp, hmidi->id);  in snd_hdsp_midi_input_open()
1467 	hmidi->input = substream;  in snd_hdsp_midi_input_open()
1468 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_input_open()
1475 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_output_open()  local
1477 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_output_open()
1478 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_output_open()
1479 	hmidi->output = substream;  in snd_hdsp_midi_output_open()
1480 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_output_open()
1487 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_input_close()  local
1491 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_input_close()
1492 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_input_close()
1493 	hmidi->input = NULL;  in snd_hdsp_midi_input_close()
1494 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_input_close()
1501 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_output_close()  local
1505 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_output_close()
1506 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_output_close()
1507 	hmidi->output = NULL;  in snd_hdsp_midi_output_close()
1508 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_output_close()