1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED |
3 | #define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED |
4 | |
5 | #include <sound/pcm.h> |
6 | #include <sound/rawmidi.h> |
7 | |
8 | #include "amdtp-stream.h" |
9 | |
10 | #define AM824_IN_PCM_FORMAT_BITS SNDRV_PCM_FMTBIT_S32 |
11 | |
12 | #define AM824_OUT_PCM_FORMAT_BITS 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 | |
30 | int 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 | |
35 | void amdtp_am824_set_pcm_position(struct amdtp_stream *s, unsigned int index, |
36 | unsigned int position); |
37 | |
38 | void amdtp_am824_set_midi_position(struct amdtp_stream *s, |
39 | unsigned int position); |
40 | |
41 | int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s, |
42 | struct snd_pcm_runtime *runtime); |
43 | |
44 | void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port, |
45 | struct snd_rawmidi_substream *midi); |
46 | |
47 | int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit, |
48 | enum amdtp_stream_direction dir, unsigned int flags); |
49 | #endif |
50 | |