tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * oxfw.h - a part of driver for OXFW970/971 based devices
3 *
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 * Licensed under the terms of the GNU General Public License, version 2.
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
17#include <sound/control.h>
18#include <sound/core.h>
19#include <sound/initval.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/info.h>
23#include <sound/rawmidi.h>
24#include <sound/firewire.h>
25#include <sound/hwdep.h>
26
27#include "../lib.h"
28#include "../fcp.h"
29#include "../packets-buffer.h"
30#include "../iso-resources.h"
31#include "../amdtp-am824.h"
32#include "../cmp.h"
33
34/* This is an arbitrary number for convinience. */
35#define SND_OXFW_STREAM_FORMAT_ENTRIES 10
36struct snd_oxfw {
37 struct snd_card *card;
38 struct fw_unit *unit;
39 struct mutex mutex;
40 spinlock_t lock;
41
42 bool registered;
43 struct delayed_work dwork;
44
45 bool wrong_dbs;
46 bool has_output;
47 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
48 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
49 bool assumed;
50 struct cmp_connection out_conn;
51 struct cmp_connection in_conn;
52 struct amdtp_stream tx_stream;
53 struct amdtp_stream rx_stream;
54 unsigned int capture_substreams;
55 unsigned int playback_substreams;
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
68/*
69 * AV/C Stream Format Information Specification 1.1 Working Draft
70 * (Apr 2005, 1394TA)
71 */
72int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
73 unsigned int pid, u8 *format, unsigned int len);
74int avc_stream_get_format(struct fw_unit *unit,
75 enum avc_general_plug_dir dir, unsigned int pid,
76 u8 *buf, unsigned int *len, unsigned int eid);
77static inline int
78avc_stream_get_format_single(struct fw_unit *unit,
79 enum avc_general_plug_dir dir, unsigned int pid,
80 u8 *buf, unsigned int *len)
81{
82 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
83}
84static inline int
85avc_stream_get_format_list(struct fw_unit *unit,
86 enum avc_general_plug_dir dir, unsigned int pid,
87 u8 *buf, unsigned int *len,
88 unsigned int eid)
89{
90 return avc_stream_get_format(unit, dir, pid, buf, len, eid);
91}
92
93/*
94 * AV/C Digital Interface Command Set General Specification 4.2
95 * (Sep 2004, 1394TA)
96 */
97int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
98 enum avc_general_plug_dir dir,
99 unsigned short pid);
100
101int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
102 struct amdtp_stream *stream);
103int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
104 struct amdtp_stream *stream,
105 unsigned int rate, unsigned int pcm_channels);
106void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
107 struct amdtp_stream *stream);
108void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
109 struct amdtp_stream *stream);
110void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
111 struct amdtp_stream *stream);
112
113struct snd_oxfw_stream_formation {
114 unsigned int rate;
115 unsigned int pcm;
116 unsigned int midi;
117};
118int snd_oxfw_stream_parse_format(u8 *format,
119 struct snd_oxfw_stream_formation *formation);
120int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
121 enum avc_general_plug_dir dir,
122 struct snd_oxfw_stream_formation *formation);
123
124int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
125
126void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
127int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
128void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
129
130int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
131
132void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
133
134int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
135
136int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
137
138int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
139int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
140void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);