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49 lines
1.6 KiB
49 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED |
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#define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED |
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#include <sound/pcm.h> |
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#include <sound/rawmidi.h> |
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#include "amdtp-stream.h" |
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#define AM824_IN_PCM_FORMAT_BITS SNDRV_PCM_FMTBIT_S32 |
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#define AM824_OUT_PCM_FORMAT_BITS SNDRV_PCM_FMTBIT_S32 |
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/* |
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* This module supports maximum 64 PCM channels for one PCM stream |
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* This is for our convenience. |
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*/ |
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#define AM824_MAX_CHANNELS_FOR_PCM 64 |
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/* |
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* AMDTP packet can include channels for MIDI conformant data. |
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* Each MIDI conformant data channel includes 8 MPX-MIDI data stream. |
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* Each MPX-MIDI data stream includes one data stream from/to MIDI ports. |
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* |
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* This module supports maximum 1 MIDI conformant data channels. |
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* Then this AMDTP packets can transfer maximum 8 MIDI data streams. |
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*/ |
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#define AM824_MAX_CHANNELS_FOR_MIDI 1 |
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int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate, |
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unsigned int pcm_channels, |
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unsigned int midi_ports, |
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bool double_pcm_frames); |
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void amdtp_am824_set_pcm_position(struct amdtp_stream *s, unsigned int index, |
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unsigned int position); |
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void amdtp_am824_set_midi_position(struct amdtp_stream *s, |
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unsigned int position); |
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int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s, |
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struct snd_pcm_runtime *runtime); |
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void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port, |
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struct snd_rawmidi_substream *midi); |
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int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit, |
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enum amdtp_stream_direction dir, enum cip_flags flags); |
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#endif
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