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4c2aee0032
Patch makes midi output buffer DMA-able by allocating it separately. Signed-off-by: Torsten Schenk <torsten.schenk@zoho.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/*
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* Linux driver for TerraTec DMX 6Fire USB
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*
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* Author: Torsten Schenk <torsten.schenk@zoho.com>
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* Created: Jan 01, 2011
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* Copyright: (C) Torsten Schenk
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef USB6FIRE_MIDI_H
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#define USB6FIRE_MIDI_H
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#include "common.h"
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struct midi_runtime {
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struct sfire_chip *chip;
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struct snd_rawmidi *instance;
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struct snd_rawmidi_substream *in;
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char in_active;
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spinlock_t in_lock;
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spinlock_t out_lock;
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struct snd_rawmidi_substream *out;
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struct urb out_urb;
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u8 out_serial; /* serial number of out packet */
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u8 *out_buffer;
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int buffer_offset;
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void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
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};
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int usb6fire_midi_init(struct sfire_chip *chip);
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void usb6fire_midi_abort(struct sfire_chip *chip);
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void usb6fire_midi_destroy(struct sfire_chip *chip);
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#endif /* USB6FIRE_MIDI_H */
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