1310 static int snd_hdsp_midi_output_write (struct hdsp_midi *hmidi)  in snd_hdsp_midi_output_write()  argument
1320 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_output_write()
1321 	if (hmidi->output) {  in snd_hdsp_midi_output_write()
1322 		if (!snd_rawmidi_transmit_empty (hmidi->output)) {  in snd_hdsp_midi_output_write()
1323 			if ((n_pending = snd_hdsp_midi_output_possible (hmidi->hdsp, hmidi->id)) > 0) {  in snd_hdsp_midi_output_write()
1327 				if ((to_write = snd_rawmidi_transmit (hmidi->output, buf, n_pending)) > 0) {  in snd_hdsp_midi_output_write()
1329 						snd_hdsp_midi_write_byte (hmidi->hdsp, hmidi->id, buf[i]);  in snd_hdsp_midi_output_write()
1334 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_output_write()
1338 static int snd_hdsp_midi_input_read (struct hdsp_midi *hmidi)  in snd_hdsp_midi_input_read()  argument
1345 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_input_read()
1346 	if ((n_pending = snd_hdsp_midi_input_available (hmidi->hdsp, hmidi->id)) > 0) {  in snd_hdsp_midi_input_read()
1347 		if (hmidi->input) {  in snd_hdsp_midi_input_read()
1351 				buf[i] = snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);  in snd_hdsp_midi_input_read()
1353 				snd_rawmidi_receive (hmidi->input, buf, n_pending);  in snd_hdsp_midi_input_read()
1357 				snd_hdsp_midi_read_byte (hmidi->hdsp, hmidi->id);  in snd_hdsp_midi_input_read()
1360 	hmidi->pending = 0;  in snd_hdsp_midi_input_read()
1361 	if (hmidi->id)  in snd_hdsp_midi_input_read()
1362 		hmidi->hdsp->control_register |= HDSP_Midi1InterruptEnable;  in snd_hdsp_midi_input_read()
1364 		hmidi->hdsp->control_register |= HDSP_Midi0InterruptEnable;  in snd_hdsp_midi_input_read()
1365 	hdsp_write(hmidi->hdsp, HDSP_controlRegister, hmidi->hdsp->control_register);  in snd_hdsp_midi_input_read()
1366 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_input_read()
1367 	return snd_hdsp_midi_output_write (hmidi);  in snd_hdsp_midi_input_read()
1373 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_input_trigger()  local
1377 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_input_trigger()
1378 	hdsp = hmidi->hdsp;  in snd_hdsp_midi_input_trigger()
1379 	ie = hmidi->id ? HDSP_Midi1InterruptEnable : HDSP_Midi0InterruptEnable;  in snd_hdsp_midi_input_trigger()
1383 			snd_hdsp_flush_midi_input (hdsp, hmidi->id);  in snd_hdsp_midi_input_trigger()
1396 	struct hdsp_midi *hmidi = from_timer(hmidi, t, timer);  in snd_hdsp_midi_output_timer()  local
1399 	snd_hdsp_midi_output_write(hmidi);  in snd_hdsp_midi_output_timer()
1400 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_output_timer()
1408 	if (hmidi->istimer)  in snd_hdsp_midi_output_timer()
1409 		mod_timer(&hmidi->timer, 1 + jiffies);  in snd_hdsp_midi_output_timer()
1411 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_output_timer()
1416 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_output_trigger()  local
1419 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_output_trigger()
1420 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdsp_midi_output_trigger()
1422 		if (!hmidi->istimer) {  in snd_hdsp_midi_output_trigger()
1423 			timer_setup(&hmidi->timer, snd_hdsp_midi_output_timer,  in snd_hdsp_midi_output_trigger()
1425 			mod_timer(&hmidi->timer, 1 + jiffies);  in snd_hdsp_midi_output_trigger()
1426 			hmidi->istimer++;  in snd_hdsp_midi_output_trigger()
1429 		if (hmidi->istimer && --hmidi->istimer <= 0)  in snd_hdsp_midi_output_trigger()
1430 			del_timer (&hmidi->timer);  in snd_hdsp_midi_output_trigger()
1432 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdsp_midi_output_trigger()
1434 		snd_hdsp_midi_output_write(hmidi);  in snd_hdsp_midi_output_trigger()
1439 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_input_open()  local
1441 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_input_open()
1442 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_input_open()
1443 	snd_hdsp_flush_midi_input (hmidi->hdsp, hmidi->id);  in snd_hdsp_midi_input_open()
1444 	hmidi->input = substream;  in snd_hdsp_midi_input_open()
1445 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_input_open()
1452 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_output_open()  local
1454 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_output_open()
1455 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_output_open()
1456 	hmidi->output = substream;  in snd_hdsp_midi_output_open()
1457 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_output_open()
1464 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_input_close()  local
1468 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_input_close()
1469 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_input_close()
1470 	hmidi->input = NULL;  in snd_hdsp_midi_input_close()
1471 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_input_close()
1478 	struct hdsp_midi *hmidi;  in snd_hdsp_midi_output_close()  local
1482 	hmidi = (struct hdsp_midi *) substream->rmidi->private_data;  in snd_hdsp_midi_output_close()
1483 	spin_lock_irq (&hmidi->lock);  in snd_hdsp_midi_output_close()
1484 	hmidi->output = NULL;  in snd_hdsp_midi_output_close()
1485 	spin_unlock_irq (&hmidi->lock);  in snd_hdsp_midi_output_close()