ALSA: dice: Split proc interface into a file
[deliverable/linux.git] / sound / firewire / dice / dice.h
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1/*
2 * dice.h - a part of driver for Dice based devices
3 *
4 * Copyright (c) Clemens Ladisch
5 * Copyright (c) 2014 Takashi Sakamoto
6 *
7 * Licensed under the terms of the GNU General Public License, version 2.
8 */
9
10#ifndef SOUND_DICE_H_INCLUDED
11#define SOUND_DICE_H_INCLUDED
12
13#include <linux/compat.h>
14#include <linux/completion.h>
15#include <linux/delay.h>
16#include <linux/device.h>
17#include <linux/firewire.h>
18#include <linux/firewire-constants.h>
19#include <linux/jiffies.h>
20#include <linux/module.h>
21#include <linux/mod_devicetable.h>
22#include <linux/mutex.h>
23#include <linux/slab.h>
24#include <linux/spinlock.h>
25#include <linux/wait.h>
26
27#include <sound/control.h>
28#include <sound/core.h>
29#include <sound/firewire.h>
30#include <sound/hwdep.h>
31#include <sound/info.h>
32#include <sound/initval.h>
33#include <sound/pcm.h>
34#include <sound/pcm_params.h>
35
36#include "../amdtp.h"
37#include "../iso-resources.h"
38#include "../lib.h"
39#include "dice-interface.h"
40
41struct snd_dice {
42 struct snd_card *card;
43 struct fw_unit *unit;
44 spinlock_t lock;
45 struct mutex mutex;
46
47 /* Offsets for sub-addresses */
48 unsigned int global_offset;
49 unsigned int rx_offset;
50 unsigned int tx_offset;
51 unsigned int sync_offset;
52 unsigned int rsrv_offset;
53
54 unsigned int clock_caps;
55 unsigned int rx_channels[3];
56 unsigned int rx_midi_ports[3];
57 struct fw_address_handler notification_handler;
58 int owner_generation;
59 int dev_lock_count; /* > 0 driver, < 0 userspace */
60 bool dev_lock_changed;
61 bool global_enabled;
62 struct completion clock_accepted;
63 wait_queue_head_t hwdep_wait;
64 u32 notification_bits;
65 struct fw_iso_resources rx_resources;
66 struct amdtp_stream rx_stream;
67};
68
69enum snd_dice_addr_type {
70 SND_DICE_ADDR_TYPE_PRIVATE,
71 SND_DICE_ADDR_TYPE_GLOBAL,
72 SND_DICE_ADDR_TYPE_TX,
73 SND_DICE_ADDR_TYPE_RX,
74 SND_DICE_ADDR_TYPE_SYNC,
75 SND_DICE_ADDR_TYPE_RSRV,
76};
77
78int snd_dice_transaction_write(struct snd_dice *dice,
79 enum snd_dice_addr_type type,
80 unsigned int offset,
81 void *buf, unsigned int len);
82int snd_dice_transaction_read(struct snd_dice *dice,
83 enum snd_dice_addr_type type, unsigned int offset,
84 void *buf, unsigned int len);
85
86static inline int snd_dice_transaction_write_global(struct snd_dice *dice,
87 unsigned int offset,
88 void *buf, unsigned int len)
89{
90 return snd_dice_transaction_write(dice,
91 SND_DICE_ADDR_TYPE_GLOBAL, offset,
92 buf, len);
93}
94static inline int snd_dice_transaction_read_global(struct snd_dice *dice,
95 unsigned int offset,
96 void *buf, unsigned int len)
97{
98 return snd_dice_transaction_read(dice,
99 SND_DICE_ADDR_TYPE_GLOBAL, offset,
100 buf, len);
101}
102static inline int snd_dice_transaction_write_tx(struct snd_dice *dice,
103 unsigned int offset,
104 void *buf, unsigned int len)
105{
106 return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_TX, offset,
107 buf, len);
108}
109static inline int snd_dice_transaction_read_tx(struct snd_dice *dice,
110 unsigned int offset,
111 void *buf, unsigned int len)
112{
113 return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_TX, offset,
114 buf, len);
115}
116static inline int snd_dice_transaction_write_rx(struct snd_dice *dice,
117 unsigned int offset,
118 void *buf, unsigned int len)
119{
120 return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_RX, offset,
121 buf, len);
122}
123static inline int snd_dice_transaction_read_rx(struct snd_dice *dice,
124 unsigned int offset,
125 void *buf, unsigned int len)
126{
127 return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_RX, offset,
128 buf, len);
129}
130static inline int snd_dice_transaction_write_sync(struct snd_dice *dice,
131 unsigned int offset,
132 void *buf, unsigned int len)
133{
134 return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_SYNC, offset,
135 buf, len);
136}
137static inline int snd_dice_transaction_read_sync(struct snd_dice *dice,
138 unsigned int offset,
139 void *buf, unsigned int len)
140{
141 return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_SYNC, offset,
142 buf, len);
143}
144
145int snd_dice_transaction_set_clock_source(struct snd_dice *dice,
146 unsigned int source);
147int snd_dice_transaction_get_clock_source(struct snd_dice *dice,
148 unsigned int *source);
149int snd_dice_transaction_set_rate(struct snd_dice *dice, unsigned int rate);
150int snd_dice_transaction_get_rate(struct snd_dice *dice, unsigned int *rate);
151int snd_dice_transaction_set_enable(struct snd_dice *dice);
152void snd_dice_transaction_clear_enable(struct snd_dice *dice);
153int snd_dice_transaction_init(struct snd_dice *dice);
154int snd_dice_transaction_reinit(struct snd_dice *dice);
155void snd_dice_transaction_destroy(struct snd_dice *dice);
156
157#define SND_DICE_RATES_COUNT 7
158extern const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT];
159
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160int snd_dice_stream_get_rate_mode(struct snd_dice *dice,
161 unsigned int rate, unsigned int *mode);
162
163int snd_dice_stream_start_packets(struct snd_dice *dice);
164int snd_dice_stream_start(struct snd_dice *dice);
165void snd_dice_stream_stop_packets(struct snd_dice *dice);
166void snd_dice_stream_stop(struct snd_dice *dice);
167int snd_dice_stream_init(struct snd_dice *dice);
168void snd_dice_stream_destroy(struct snd_dice *dice);
169void snd_dice_stream_update(struct snd_dice *dice);
170
171int snd_dice_stream_lock_try(struct snd_dice *dice);
172void snd_dice_stream_lock_release(struct snd_dice *dice);
173
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174int snd_dice_create_pcm(struct snd_dice *dice);
175
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176int snd_dice_create_hwdep(struct snd_dice *dice);
177
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178void snd_dice_create_proc(struct snd_dice *dice);
179
7c2d4c0c 180#endif
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