diff options
Diffstat (limited to 'sound/firewire/oxfw/oxfw.h')
| -rw-r--r-- | sound/firewire/oxfw/oxfw.h | 65 |
1 files changed, 45 insertions, 20 deletions
diff --git a/sound/firewire/oxfw/oxfw.h b/sound/firewire/oxfw/oxfw.h index d54d4a9ac4a1..39ea9a6dde33 100644 --- a/sound/firewire/oxfw/oxfw.h +++ b/sound/firewire/oxfw/oxfw.h @@ -1,8 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * oxfw.h - a part of driver for OXFW970/971 based devices * * Copyright (c) Clemens Ladisch <clemens@ladisch.de> - * Licensed under the terms of the GNU General Public License, version 2. */ #include <linux/device.h> @@ -32,6 +32,33 @@ #include "../amdtp-am824.h" #include "../cmp.h" +enum snd_oxfw_quirk { + // Postpone transferring packets during handling asynchronous transaction. As a result, + // next isochronous packet includes more events than one packet can include. + SND_OXFW_QUIRK_JUMBO_PAYLOAD = 0x01, + // The dbs field of CIP header in tx packet is wrong. + SND_OXFW_QUIRK_WRONG_DBS = 0x02, + // Blocking transmission mode is used. + SND_OXFW_QUIRK_BLOCKING_TRANSMISSION = 0x04, + // Stanton SCS1.d and SCS1.m support unique transaction. + SND_OXFW_QUIRK_SCS_TRANSACTION = 0x08, + // Apogee Duet FireWire ignores data blocks in packet with NO_INFO for audio data + // processing, while output level meter moves. Any value in syt field of packet takes + // the device to process audio data even if the value is invalid in a point of + // IEC 61883-1/6. + SND_OXFW_QUIRK_IGNORE_NO_INFO_PACKET = 0x10, + // Loud Technologies Mackie Onyx 1640i seems to configure OXFW971 ASIC so that it decides + // event frequency according to events in received isochronous packets. The device looks to + // performs media clock recovery voluntarily. In the recovery, the packets with NO_INFO + // are ignored, thus driver should transfer packets with timestamp. + SND_OXFW_QUIRK_VOLUNTARY_RECOVERY = 0x20, + // Miglia Harmony Audio does not support AV/C Stream Format Information command. + SND_OXFW_QUIRK_STREAM_FORMAT_INFO_UNSUPPORTED = 0x40, + // Miglia Harmony Audio transmits CIP in which the value of dbc field expresses the number + // of accumulated payload quadlets including the packet. + SND_OXFW_QUIRK_DBC_IS_TOTAL_PAYLOAD_QUADLETS = 0x80, +}; + /* This is an arbitrary number for convinience. */ #define SND_OXFW_STREAM_FORMAT_ENTRIES 10 struct snd_oxfw { @@ -40,11 +67,10 @@ struct snd_oxfw { struct mutex mutex; spinlock_t lock; - bool registered; - struct delayed_work dwork; - - bool wrong_dbs; + // The combination of snd_oxfw_quirk enumeration-constants. + unsigned int quirks; bool has_output; + bool has_input; u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; bool assumed; @@ -52,8 +78,7 @@ struct snd_oxfw { struct cmp_connection in_conn; struct amdtp_stream tx_stream; struct amdtp_stream rx_stream; - unsigned int capture_substreams; - unsigned int playback_substreams; + unsigned int substreams_count; unsigned int midi_input_ports; unsigned int midi_output_ports; @@ -62,8 +87,9 @@ struct snd_oxfw { bool dev_lock_changed; wait_queue_head_t hwdep_wait; - const struct ieee1394_device_id *entry; void *spec; + + struct amdtp_domain domain; }; /* @@ -99,24 +125,23 @@ int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, enum avc_general_plug_dir dir, unsigned short pid); -int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, - struct amdtp_stream *stream); -int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, - struct amdtp_stream *stream, - unsigned int rate, unsigned int pcm_channels); -void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, - struct amdtp_stream *stream); -void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, - struct amdtp_stream *stream); -void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, - struct amdtp_stream *stream); +int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw); +int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream, + unsigned int rate, unsigned int pcm_channels, + unsigned int frames_per_period, + unsigned int frames_per_buffer); +int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw); +void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw); +void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw); +void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw); struct snd_oxfw_stream_formation { unsigned int rate; unsigned int pcm; unsigned int midi; }; -int snd_oxfw_stream_parse_format(u8 *format, +int snd_oxfw_stream_parse_format(const u8 *format, struct snd_oxfw_stream_formation *formation); int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, |