tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * oxfw.h - a part of driver for OXFW970/971 based devices
4 *
5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
6 */
7
8#include <linux/device.h>
9#include <linux/firewire.h>
10#include <linux/firewire-constants.h>
11#include <linux/module.h>
12#include <linux/mod_devicetable.h>
13#include <linux/mutex.h>
14#include <linux/slab.h>
15#include <linux/compat.h>
16#include <linux/sched/signal.h>
17
18#include <sound/control.h>
19#include <sound/core.h>
20#include <sound/initval.h>
21#include <sound/pcm.h>
22#include <sound/pcm_params.h>
23#include <sound/info.h>
24#include <sound/rawmidi.h>
25#include <sound/firewire.h>
26#include <sound/hwdep.h>
27
28#include "../lib.h"
29#include "../fcp.h"
30#include "../packets-buffer.h"
31#include "../iso-resources.h"
32#include "../amdtp-am824.h"
33#include "../cmp.h"
34
35/* This is an arbitrary number for convinience. */
36#define SND_OXFW_STREAM_FORMAT_ENTRIES 10
37struct snd_oxfw {
38 struct snd_card *card;
39 struct fw_unit *unit;
40 struct mutex mutex;
41 spinlock_t lock;
42
43 bool registered;
44 struct delayed_work dwork;
45
46 bool wrong_dbs;
47 bool has_output;
48 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
49 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
50 bool assumed;
51 struct cmp_connection out_conn;
52 struct cmp_connection in_conn;
53 struct amdtp_stream tx_stream;
54 struct amdtp_stream rx_stream;
55 unsigned int substreams_count;
56
57 unsigned int midi_input_ports;
58 unsigned int midi_output_ports;
59
60 int dev_lock_count;
61 bool dev_lock_changed;
62 wait_queue_head_t hwdep_wait;
63
64 const struct ieee1394_device_id *entry;
65 void *spec;
66
67 struct amdtp_domain domain;
68};
69
70/*
71 * AV/C Stream Format Information Specification 1.1 Working Draft
72 * (Apr 2005, 1394TA)
73 */
74int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
75 unsigned int pid, u8 *format, unsigned int len);
76int avc_stream_get_format(struct fw_unit *unit,
77 enum avc_general_plug_dir dir, unsigned int pid,
78 u8 *buf, unsigned int *len, unsigned int eid);
79static inline int
80avc_stream_get_format_single(struct fw_unit *unit,
81 enum avc_general_plug_dir dir, unsigned int pid,
82 u8 *buf, unsigned int *len)
83{
84 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
85}
86static inline int
87avc_stream_get_format_list(struct fw_unit *unit,
88 enum avc_general_plug_dir dir, unsigned int pid,
89 u8 *buf, unsigned int *len,
90 unsigned int eid)
91{
92 return avc_stream_get_format(unit, dir, pid, buf, len, eid);
93}
94
95/*
96 * AV/C Digital Interface Command Set General Specification 4.2
97 * (Sep 2004, 1394TA)
98 */
99int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
100 enum avc_general_plug_dir dir,
101 unsigned short pid);
102
103int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw);
104int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw,
105 struct amdtp_stream *stream,
106 unsigned int rate, unsigned int pcm_channels);
107int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw);
108void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw);
109void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw);
110void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw);
111
112struct snd_oxfw_stream_formation {
113 unsigned int rate;
114 unsigned int pcm;
115 unsigned int midi;
116};
117int snd_oxfw_stream_parse_format(u8 *format,
118 struct snd_oxfw_stream_formation *formation);
119int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
120 enum avc_general_plug_dir dir,
121 struct snd_oxfw_stream_formation *formation);
122
123int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
124
125void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
126int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
127void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
128
129int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
130
131void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
132
133int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
134
135int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
136
137int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
138int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
139void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);