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Linux kernel mirror (for testing)
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linux
1#ifndef SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED
2#define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED
3
4#include <sound/pcm.h>
5#include <sound/rawmidi.h>
6
7#include "amdtp-stream.h"
8
9#define AM824_IN_PCM_FORMAT_BITS SNDRV_PCM_FMTBIT_S32
10
11#define AM824_OUT_PCM_FORMAT_BITS (SNDRV_PCM_FMTBIT_S16 | \
12 SNDRV_PCM_FMTBIT_S32)
13
14/*
15 * This module supports maximum 64 PCM channels for one PCM stream
16 * This is for our convenience.
17 */
18#define AM824_MAX_CHANNELS_FOR_PCM 64
19
20/*
21 * AMDTP packet can include channels for MIDI conformant data.
22 * Each MIDI conformant data channel includes 8 MPX-MIDI data stream.
23 * Each MPX-MIDI data stream includes one data stream from/to MIDI ports.
24 *
25 * This module supports maximum 1 MIDI conformant data channels.
26 * Then this AMDTP packets can transfer maximum 8 MIDI data streams.
27 */
28#define AM824_MAX_CHANNELS_FOR_MIDI 1
29
30int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate,
31 unsigned int pcm_channels,
32 unsigned int midi_ports,
33 bool double_pcm_frames);
34
35void amdtp_am824_set_pcm_position(struct amdtp_stream *s, unsigned int index,
36 unsigned int position);
37
38void amdtp_am824_set_midi_position(struct amdtp_stream *s,
39 unsigned int position);
40
41int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s,
42 struct snd_pcm_runtime *runtime);
43
44void amdtp_am824_set_pcm_format(struct amdtp_stream *s,
45 snd_pcm_format_t format);
46
47void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port,
48 struct snd_rawmidi_substream *midi);
49
50int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit,
51 enum amdtp_stream_direction dir, enum cip_flags flags);
52#endif