diff options
Diffstat (limited to 'sound/firewire/tascam/tascam.h')
| -rw-r--r-- | sound/firewire/tascam/tascam.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sound/firewire/tascam/tascam.h b/sound/firewire/tascam/tascam.h index d3cd4065722b..de76313e5d50 100644 --- a/sound/firewire/tascam/tascam.h +++ b/sound/firewire/tascam/tascam.h @@ -45,6 +45,29 @@ struct snd_tscm_spec { #define TSCM_MIDI_IN_PORT_MAX 4 #define TSCM_MIDI_OUT_PORT_MAX 4 +struct snd_fw_async_midi_port; +typedef int (*snd_fw_async_midi_port_fill)( + struct snd_rawmidi_substream *substream, + u8 *buf); + +struct snd_fw_async_midi_port { + struct fw_device *parent; + struct work_struct work; + bool idling; + ktime_t next_ktime; + bool error; + + u64 addr; + struct fw_transaction transaction; + + u8 *buf; + unsigned int len; + + struct snd_rawmidi_substream *substream; + snd_fw_async_midi_port_fill fill; + int consume_bytes; +}; + struct snd_tscm { struct snd_card *card; struct fw_unit *unit; @@ -131,6 +154,28 @@ void snd_tscm_stream_lock_changed(struct snd_tscm *tscm); int snd_tscm_stream_lock_try(struct snd_tscm *tscm); void snd_tscm_stream_lock_release(struct snd_tscm *tscm); +int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port, + struct fw_unit *unit, u64 addr, unsigned int len, + snd_fw_async_midi_port_fill fill); +void snd_fw_async_midi_port_destroy(struct snd_fw_async_midi_port *port); + +static inline void +snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port, + struct snd_rawmidi_substream *substream) +{ + if (!port->error) { + port->substream = substream; + schedule_work(&port->work); + } +} + +static inline void +snd_fw_async_midi_port_finish(struct snd_fw_async_midi_port *port) +{ + port->substream = NULL; + port->error = false; +} + int snd_tscm_transaction_register(struct snd_tscm *tscm); int snd_tscm_transaction_reregister(struct snd_tscm *tscm); void snd_tscm_transaction_unregister(struct snd_tscm *tscm); |