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