4f380d0070
This commit is a part of preparation to perform allocation/release of isochronous resources in pcm.hw_params/hw_free callbacks. At present, several operations are done in pcm.prepare callback. To reduce load of the callback, This commit splits out an operation to set packet format in pcm.hw_params callback. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
138 lines
4.0 KiB
C
138 lines
4.0 KiB
C
/*
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* oxfw.h - a part of driver for OXFW970/971 based devices
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*
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* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
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* Licensed under the terms of the GNU General Public License, version 2.
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*/
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#include <linux/device.h>
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#include <linux/firewire.h>
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#include <linux/firewire-constants.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/mutex.h>
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#include <linux/slab.h>
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#include <linux/compat.h>
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#include <linux/sched/signal.h>
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#include <sound/control.h>
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#include <sound/core.h>
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#include <sound/initval.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/info.h>
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#include <sound/rawmidi.h>
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#include <sound/firewire.h>
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#include <sound/hwdep.h>
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#include "../lib.h"
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#include "../fcp.h"
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#include "../packets-buffer.h"
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#include "../iso-resources.h"
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#include "../amdtp-am824.h"
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#include "../cmp.h"
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/* This is an arbitrary number for convinience. */
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#define SND_OXFW_STREAM_FORMAT_ENTRIES 10
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struct snd_oxfw {
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struct snd_card *card;
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struct fw_unit *unit;
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struct mutex mutex;
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spinlock_t lock;
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bool registered;
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struct delayed_work dwork;
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bool wrong_dbs;
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bool has_output;
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u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
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u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
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bool assumed;
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struct cmp_connection out_conn;
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struct cmp_connection in_conn;
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struct amdtp_stream tx_stream;
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struct amdtp_stream rx_stream;
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unsigned int substreams_count;
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unsigned int midi_input_ports;
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unsigned int midi_output_ports;
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int dev_lock_count;
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bool dev_lock_changed;
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wait_queue_head_t hwdep_wait;
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const struct ieee1394_device_id *entry;
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void *spec;
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};
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/*
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* AV/C Stream Format Information Specification 1.1 Working Draft
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* (Apr 2005, 1394TA)
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*/
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int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
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unsigned int pid, u8 *format, unsigned int len);
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int avc_stream_get_format(struct fw_unit *unit,
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enum avc_general_plug_dir dir, unsigned int pid,
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u8 *buf, unsigned int *len, unsigned int eid);
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static inline int
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avc_stream_get_format_single(struct fw_unit *unit,
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enum avc_general_plug_dir dir, unsigned int pid,
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u8 *buf, unsigned int *len)
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{
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return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
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}
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static inline int
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avc_stream_get_format_list(struct fw_unit *unit,
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enum avc_general_plug_dir dir, unsigned int pid,
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u8 *buf, unsigned int *len,
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unsigned int eid)
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{
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return avc_stream_get_format(unit, dir, pid, buf, len, eid);
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}
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/*
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* AV/C Digital Interface Command Set General Specification 4.2
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* (Sep 2004, 1394TA)
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*/
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int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
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enum avc_general_plug_dir dir,
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unsigned short pid);
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int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw);
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int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw,
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struct amdtp_stream *stream,
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unsigned int rate, unsigned int pcm_channels);
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int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw);
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void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw);
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void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw);
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void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw);
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struct snd_oxfw_stream_formation {
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unsigned int rate;
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unsigned int pcm;
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unsigned int midi;
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};
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int snd_oxfw_stream_parse_format(u8 *format,
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struct snd_oxfw_stream_formation *formation);
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int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
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enum avc_general_plug_dir dir,
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struct snd_oxfw_stream_formation *formation);
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int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
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void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
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int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
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void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
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int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
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void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
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int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
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int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
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int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
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int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
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void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);
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