1847 static int snd_hdspm_midi_output_write (struct hdspm_midi *hmidi)  in snd_hdspm_midi_output_write()  argument
1857 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdspm_midi_output_write()
1858 	if (hmidi->output &&  in snd_hdspm_midi_output_write()
1859 	    !snd_rawmidi_transmit_empty (hmidi->output)) {  in snd_hdspm_midi_output_write()
1860 		n_pending = snd_hdspm_midi_output_possible (hmidi->hdspm,  in snd_hdspm_midi_output_write()
1861 							    hmidi->id);  in snd_hdspm_midi_output_write()
1866 			to_write = snd_rawmidi_transmit (hmidi->output, buf,  in snd_hdspm_midi_output_write()
1870 					snd_hdspm_midi_write_byte (hmidi->hdspm,  in snd_hdspm_midi_output_write()
1871 								   hmidi->id,  in snd_hdspm_midi_output_write()
1876 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdspm_midi_output_write()
1880 static int snd_hdspm_midi_input_read (struct hdspm_midi *hmidi)  in snd_hdspm_midi_input_read()  argument
1889 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdspm_midi_input_read()
1890 	n_pending = snd_hdspm_midi_input_available (hmidi->hdspm, hmidi->id);  in snd_hdspm_midi_input_read()
1892 		if (hmidi->input) {  in snd_hdspm_midi_input_read()
1896 				buf[i] = snd_hdspm_midi_read_byte (hmidi->hdspm,  in snd_hdspm_midi_input_read()
1897 								   hmidi->id);  in snd_hdspm_midi_input_read()
1899 				snd_rawmidi_receive (hmidi->input, buf,  in snd_hdspm_midi_input_read()
1904 				snd_hdspm_midi_read_byte (hmidi->hdspm,  in snd_hdspm_midi_input_read()
1905 							  hmidi->id);  in snd_hdspm_midi_input_read()
1908 	hmidi->pending = 0;  in snd_hdspm_midi_input_read()
1909 	spin_unlock_irqrestore(&hmidi->lock, flags);  in snd_hdspm_midi_input_read()
1911 	spin_lock_irqsave(&hmidi->hdspm->lock, flags);  in snd_hdspm_midi_input_read()
1912 	hmidi->hdspm->control_register |= hmidi->ie;  in snd_hdspm_midi_input_read()
1913 	hdspm_write(hmidi->hdspm, HDSPM_controlRegister,  in snd_hdspm_midi_input_read()
1914 		    hmidi->hdspm->control_register);  in snd_hdspm_midi_input_read()
1915 	spin_unlock_irqrestore(&hmidi->hdspm->lock, flags);  in snd_hdspm_midi_input_read()
1917 	return snd_hdspm_midi_output_write (hmidi);  in snd_hdspm_midi_input_read()
1924 	struct hdspm_midi *hmidi;  in snd_hdspm_midi_input_trigger()  local
1927 	hmidi = substream->rmidi->private_data;  in snd_hdspm_midi_input_trigger()
1928 	hdspm = hmidi->hdspm;  in snd_hdspm_midi_input_trigger()
1932 		if (!(hdspm->control_register & hmidi->ie)) {  in snd_hdspm_midi_input_trigger()
1933 			snd_hdspm_flush_midi_input (hdspm, hmidi->id);  in snd_hdspm_midi_input_trigger()
1934 			hdspm->control_register |= hmidi->ie;  in snd_hdspm_midi_input_trigger()
1937 		hdspm->control_register &= ~hmidi->ie;  in snd_hdspm_midi_input_trigger()
1946 	struct hdspm_midi *hmidi = from_timer(hmidi, t, timer);  in snd_hdspm_midi_output_timer()  local
1949 	snd_hdspm_midi_output_write(hmidi);  in snd_hdspm_midi_output_timer()
1950 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdspm_midi_output_timer()
1958 	if (hmidi->istimer)  in snd_hdspm_midi_output_timer()
1959 		mod_timer(&hmidi->timer, 1 + jiffies);  in snd_hdspm_midi_output_timer()
1961 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdspm_midi_output_timer()
1967 	struct hdspm_midi *hmidi;  in snd_hdspm_midi_output_trigger()  local
1970 	hmidi = substream->rmidi->private_data;  in snd_hdspm_midi_output_trigger()
1971 	spin_lock_irqsave (&hmidi->lock, flags);  in snd_hdspm_midi_output_trigger()
1973 		if (!hmidi->istimer) {  in snd_hdspm_midi_output_trigger()
1974 			timer_setup(&hmidi->timer,  in snd_hdspm_midi_output_trigger()
1976 			mod_timer(&hmidi->timer, 1 + jiffies);  in snd_hdspm_midi_output_trigger()
1977 			hmidi->istimer++;  in snd_hdspm_midi_output_trigger()
1980 		if (hmidi->istimer && --hmidi->istimer <= 0)  in snd_hdspm_midi_output_trigger()
1981 			del_timer (&hmidi->timer);  in snd_hdspm_midi_output_trigger()
1983 	spin_unlock_irqrestore (&hmidi->lock, flags);  in snd_hdspm_midi_output_trigger()
1985 		snd_hdspm_midi_output_write(hmidi);  in snd_hdspm_midi_output_trigger()
1990 	struct hdspm_midi *hmidi;  in snd_hdspm_midi_input_open()  local
1992 	hmidi = substream->rmidi->private_data;  in snd_hdspm_midi_input_open()
1993 	spin_lock_irq (&hmidi->lock);  in snd_hdspm_midi_input_open()
1994 	snd_hdspm_flush_midi_input (hmidi->hdspm, hmidi->id);  in snd_hdspm_midi_input_open()
1995 	hmidi->input = substream;  in snd_hdspm_midi_input_open()
1996 	spin_unlock_irq (&hmidi->lock);  in snd_hdspm_midi_input_open()
2003 	struct hdspm_midi *hmidi;  in snd_hdspm_midi_output_open()  local
2005 	hmidi = substream->rmidi->private_data;  in snd_hdspm_midi_output_open()
2006 	spin_lock_irq (&hmidi->lock);  in snd_hdspm_midi_output_open()
2007 	hmidi->output = substream;  in snd_hdspm_midi_output_open()
2008 	spin_unlock_irq (&hmidi->lock);  in snd_hdspm_midi_output_open()
2015 	struct hdspm_midi *hmidi;  in snd_hdspm_midi_input_close()  local
2019 	hmidi = substream->rmidi->private_data;  in snd_hdspm_midi_input_close()
2020 	spin_lock_irq (&hmidi->lock);  in snd_hdspm_midi_input_close()
2021 	hmidi->input = NULL;  in snd_hdspm_midi_input_close()
2022 	spin_unlock_irq (&hmidi->lock);  in snd_hdspm_midi_input_close()
2029 	struct hdspm_midi *hmidi;  in snd_hdspm_midi_output_close()  local
2033 	hmidi = substream->rmidi->private_data;  in snd_hdspm_midi_output_close()
2034 	spin_lock_irq (&hmidi->lock);  in snd_hdspm_midi_output_close()
2035 	hmidi->output = NULL;  in snd_hdspm_midi_output_close()
2036 	spin_unlock_irq (&hmidi->lock);  in snd_hdspm_midi_output_close()