58 	struct snd_msndmidi *mpu;  in snd_msndmidi_input_open()  local
62 	mpu = substream->rmidi->private_data;  in snd_msndmidi_input_open()
64 	mpu->substream_input = substream;  in snd_msndmidi_input_open()
66 	snd_msnd_enable_irq(mpu->dev);  in snd_msndmidi_input_open()
68 	snd_msnd_send_dsp_cmd(mpu->dev, HDEX_MIDI_IN_START);  in snd_msndmidi_input_open()
69 	set_bit(MSNDMIDI_MODE_BIT_INPUT, &mpu->mode);  in snd_msndmidi_input_open()
75 	struct snd_msndmidi *mpu;  in snd_msndmidi_input_close()  local
77 	mpu = substream->rmidi->private_data;  in snd_msndmidi_input_close()
78 	snd_msnd_send_dsp_cmd(mpu->dev, HDEX_MIDI_IN_STOP);  in snd_msndmidi_input_close()
79 	clear_bit(MSNDMIDI_MODE_BIT_INPUT, &mpu->mode);  in snd_msndmidi_input_close()
80 	mpu->substream_input = NULL;  in snd_msndmidi_input_close()
81 	snd_msnd_disable_irq(mpu->dev);  in snd_msndmidi_input_close()
85 static void snd_msndmidi_input_drop(struct snd_msndmidi *mpu)  in snd_msndmidi_input_drop()  argument
89 	tail = readw(mpu->dev->MIDQ + JQS_wTail);  in snd_msndmidi_input_drop()
90 	writew(tail, mpu->dev->MIDQ + JQS_wHead);  in snd_msndmidi_input_drop()
100 	struct snd_msndmidi *mpu;  in snd_msndmidi_input_trigger()  local
104 	mpu = substream->rmidi->private_data;  in snd_msndmidi_input_trigger()
105 	spin_lock_irqsave(&mpu->input_lock, flags);  in snd_msndmidi_input_trigger()
108 				      &mpu->mode))  in snd_msndmidi_input_trigger()
109 			snd_msndmidi_input_drop(mpu);  in snd_msndmidi_input_trigger()
111 		clear_bit(MSNDMIDI_MODE_BIT_INPUT_TRIGGER, &mpu->mode);  in snd_msndmidi_input_trigger()
113 	spin_unlock_irqrestore(&mpu->input_lock, flags);  in snd_msndmidi_input_trigger()
115 		snd_msndmidi_input_read(mpu);  in snd_msndmidi_input_trigger()
121 	struct snd_msndmidi *mpu = mpuv;  in snd_msndmidi_input_read()  local
122 	void *pwMIDQData = mpu->dev->mappedbase + MIDQ_DATA_BUFF;  in snd_msndmidi_input_read()
125 	spin_lock_irqsave(&mpu->input_lock, flags);  in snd_msndmidi_input_read()
126 	head = readw(mpu->dev->MIDQ + JQS_wHead);  in snd_msndmidi_input_read()
127 	tail = readw(mpu->dev->MIDQ + JQS_wTail);  in snd_msndmidi_input_read()
128 	size = readw(mpu->dev->MIDQ + JQS_wSize);  in snd_msndmidi_input_read()
134 		if (test_bit(MSNDMIDI_MODE_BIT_INPUT_TRIGGER, &mpu->mode))  in snd_msndmidi_input_read()
135 			snd_rawmidi_receive(mpu->substream_input, &val, 1);  in snd_msndmidi_input_read()
138 		writew(head, mpu->dev->MIDQ + JQS_wHead);  in snd_msndmidi_input_read()
141 	spin_unlock_irqrestore(&mpu->input_lock, flags);  in snd_msndmidi_input_read()
153 	struct snd_msndmidi *mpu = rmidi->private_data;  in snd_msndmidi_free()  local
154 	kfree(mpu);  in snd_msndmidi_free()
160 	struct snd_msndmidi *mpu;  in snd_msndmidi_new()  local
167 	mpu = kzalloc(sizeof(*mpu), GFP_KERNEL);  in snd_msndmidi_new()
168 	if (mpu == NULL) {  in snd_msndmidi_new()
172 	mpu->dev = chip;  in snd_msndmidi_new()
173 	chip->msndmidi_mpu = mpu;  in snd_msndmidi_new()
174 	rmidi->private_data = mpu;  in snd_msndmidi_new()
176 	spin_lock_init(&mpu->input_lock);  in snd_msndmidi_new()