36 	sb_devc *devc = midi_devs[dev]->devc;  in sb_midi_open()  local
39 	if (devc == NULL)  in sb_midi_open()
42 	spin_lock_irqsave(&devc->lock, flags);  in sb_midi_open()
43 	if (devc->opened)  in sb_midi_open()
45 		spin_unlock_irqrestore(&devc->lock, flags);  in sb_midi_open()
48 	devc->opened = 1;  in sb_midi_open()
49 	spin_unlock_irqrestore(&devc->lock, flags);  in sb_midi_open()
51 	devc->irq_mode = IMODE_MIDI;  in sb_midi_open()
52 	devc->midi_broken = 0;  in sb_midi_open()
54 	sb_dsp_reset(devc);  in sb_midi_open()
56 	if (!sb_dsp_command(devc, 0x35))	/* Start MIDI UART mode */  in sb_midi_open()
58 		  devc->opened = 0;  in sb_midi_open()
61 	devc->intr_active = 1;  in sb_midi_open()
65 		devc->input_opened = 1;  in sb_midi_open()
66 		devc->midi_input_intr = input;  in sb_midi_open()
73 	sb_devc *devc = midi_devs[dev]->devc;  in sb_midi_close()  local
76 	if (devc == NULL)  in sb_midi_close()
79 	spin_lock_irqsave(&devc->lock, flags);  in sb_midi_close()
80 	sb_dsp_reset(devc);  in sb_midi_close()
81 	devc->intr_active = 0;  in sb_midi_close()
82 	devc->input_opened = 0;  in sb_midi_close()
83 	devc->opened = 0;  in sb_midi_close()
84 	spin_unlock_irqrestore(&devc->lock, flags);  in sb_midi_close()
89 	sb_devc *devc = midi_devs[dev]->devc;  in sb_midi_out()  local
91 	if (devc == NULL)  in sb_midi_out()
94 	if (devc->midi_broken)  in sb_midi_out()
97 	if (!sb_dsp_command(devc, midi_byte))  in sb_midi_out()
99 		devc->midi_broken = 1;  in sb_midi_out()
112 	sb_devc *devc = midi_devs[dev]->devc;  in sb_midi_end_read()  local
114 	if (devc == NULL)  in sb_midi_end_read()
117 	sb_dsp_reset(devc);  in sb_midi_end_read()
118 	devc->intr_active = 0;  in sb_midi_end_read()
127 void sb_midi_interrupt(sb_devc * devc)  in sb_midi_interrupt()  argument
132 	if (devc == NULL)  in sb_midi_interrupt()
135 	spin_lock_irqsave(&devc->lock, flags);  in sb_midi_interrupt()
138 	if (devc->input_opened)  in sb_midi_interrupt()
139 		devc->midi_input_intr(devc->my_mididev, data);  in sb_midi_interrupt()
141 	spin_unlock_irqrestore(&devc->lock, flags);  in sb_midi_interrupt()
162 void sb_dsp_midi_init(sb_devc * devc, struct module *owner)  in sb_dsp_midi_init()  argument
166 	if (devc->model < 2)	/* No MIDI support for SB 1.x */  in sb_dsp_midi_init()
176 	std_midi_synth.midi_dev = devc->my_mididev = dev;  in sb_dsp_midi_init()
190 	midi_devs[dev]->devc = devc;  in sb_dsp_midi_init()