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.h"
32#include "../cmp.h"
33
34struct device_info {
35 const char *driver_name;
36 const char *vendor_name;
37 const char *model_name;
38 unsigned int mixer_channels;
39 u8 mute_fb_id;
40 u8 volume_fb_id;
41};
42
43/* This is an arbitrary number for convinience. */
44#define SND_OXFW_STREAM_FORMAT_ENTRIES 10
45struct snd_oxfw {
46 struct snd_card *card;
47 struct fw_unit *unit;
48 const struct device_info *device_info;
49 struct mutex mutex;
50 spinlock_t lock;
51
52 bool has_output;
53 u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
54 u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
55 bool assumed;
56 struct cmp_connection out_conn;
57 struct cmp_connection in_conn;
58 struct amdtp_stream tx_stream;
59 struct amdtp_stream rx_stream;
60 unsigned int capture_substreams;
61 unsigned int playback_substreams;
62
63 unsigned int midi_input_ports;
64 unsigned int midi_output_ports;
65
66 bool mute;
67 s16 volume[6];
68 s16 volume_min;
69 s16 volume_max;
70
71 int dev_lock_count;
72 bool dev_lock_changed;
73 wait_queue_head_t hwdep_wait;
74};
75
76/*
77 * AV/C Stream Format Information Specification 1.1 Working Draft
78 * (Apr 2005, 1394TA)
79 */
80int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
81 unsigned int pid, u8 *format, unsigned int len);
82int avc_stream_get_format(struct fw_unit *unit,
83 enum avc_general_plug_dir dir, unsigned int pid,
84 u8 *buf, unsigned int *len, unsigned int eid);
85static inline int
86avc_stream_get_format_single(struct fw_unit *unit,
87 enum avc_general_plug_dir dir, unsigned int pid,
88 u8 *buf, unsigned int *len)
89{
90 return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
91}
92static inline int
93avc_stream_get_format_list(struct fw_unit *unit,
94 enum avc_general_plug_dir dir, unsigned int pid,
95 u8 *buf, unsigned int *len,
96 unsigned int eid)
97{
98 return avc_stream_get_format(unit, dir, pid, buf, len, eid);
99}
100
101/*
102 * AV/C Digital Interface Command Set General Specification 4.2
103 * (Sep 2004, 1394TA)
104 */
105int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
106 enum avc_general_plug_dir dir,
107 unsigned short pid);
108
109int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
110 struct amdtp_stream *stream);
111int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
112 struct amdtp_stream *stream,
113 unsigned int rate, unsigned int pcm_channels);
114void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
115 struct amdtp_stream *stream);
116void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
117 struct amdtp_stream *stream);
118void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
119 struct amdtp_stream *stream);
120
121struct snd_oxfw_stream_formation {
122 unsigned int rate;
123 unsigned int pcm;
124 unsigned int midi;
125};
126int snd_oxfw_stream_parse_format(u8 *format,
127 struct snd_oxfw_stream_formation *formation);
128int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
129 enum avc_general_plug_dir dir,
130 struct snd_oxfw_stream_formation *formation);
131
132int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
133
134void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
135int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
136void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
137
138int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
139
140int snd_oxfw_create_mixer(struct snd_oxfw *oxfw);
141
142void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
143
144int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
145
146int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);