2 * dice.h - a part of driver for Dice based devices
4 * Copyright (c) Clemens Ladisch
5 * Copyright (c) 2014 Takashi Sakamoto
7 * Licensed under the terms of the GNU General Public License, version 2.
10 #ifndef SOUND_DICE_H_INCLUDED
11 #define SOUND_DICE_H_INCLUDED
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>
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>
37 #include "../iso-resources.h"
39 #include "dice-interface.h"
42 struct snd_card
*card
;
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
;
54 unsigned int clock_caps
;
55 unsigned int tx_channels
[3];
56 unsigned int rx_channels
[3];
57 unsigned int tx_midi_ports
[3];
58 unsigned int rx_midi_ports
[3];
60 struct fw_address_handler notification_handler
;
62 u32 notification_bits
;
65 int dev_lock_count
; /* > 0 driver, < 0 userspace */
66 bool dev_lock_changed
;
67 wait_queue_head_t hwdep_wait
;
70 struct fw_iso_resources tx_resources
;
71 struct fw_iso_resources rx_resources
;
72 struct amdtp_stream tx_stream
;
73 struct amdtp_stream rx_stream
;
75 struct completion clock_accepted
;
76 unsigned int substreams_counter
;
79 enum snd_dice_addr_type
{
80 SND_DICE_ADDR_TYPE_PRIVATE
,
81 SND_DICE_ADDR_TYPE_GLOBAL
,
82 SND_DICE_ADDR_TYPE_TX
,
83 SND_DICE_ADDR_TYPE_RX
,
84 SND_DICE_ADDR_TYPE_SYNC
,
85 SND_DICE_ADDR_TYPE_RSRV
,
88 int snd_dice_transaction_write(struct snd_dice
*dice
,
89 enum snd_dice_addr_type type
,
91 void *buf
, unsigned int len
);
92 int snd_dice_transaction_read(struct snd_dice
*dice
,
93 enum snd_dice_addr_type type
, unsigned int offset
,
94 void *buf
, unsigned int len
);
96 static inline int snd_dice_transaction_write_global(struct snd_dice
*dice
,
98 void *buf
, unsigned int len
)
100 return snd_dice_transaction_write(dice
,
101 SND_DICE_ADDR_TYPE_GLOBAL
, offset
,
104 static inline int snd_dice_transaction_read_global(struct snd_dice
*dice
,
106 void *buf
, unsigned int len
)
108 return snd_dice_transaction_read(dice
,
109 SND_DICE_ADDR_TYPE_GLOBAL
, offset
,
112 static inline int snd_dice_transaction_write_tx(struct snd_dice
*dice
,
114 void *buf
, unsigned int len
)
116 return snd_dice_transaction_write(dice
, SND_DICE_ADDR_TYPE_TX
, offset
,
119 static inline int snd_dice_transaction_read_tx(struct snd_dice
*dice
,
121 void *buf
, unsigned int len
)
123 return snd_dice_transaction_read(dice
, SND_DICE_ADDR_TYPE_TX
, offset
,
126 static inline int snd_dice_transaction_write_rx(struct snd_dice
*dice
,
128 void *buf
, unsigned int len
)
130 return snd_dice_transaction_write(dice
, SND_DICE_ADDR_TYPE_RX
, offset
,
133 static inline int snd_dice_transaction_read_rx(struct snd_dice
*dice
,
135 void *buf
, unsigned int len
)
137 return snd_dice_transaction_read(dice
, SND_DICE_ADDR_TYPE_RX
, offset
,
140 static inline int snd_dice_transaction_write_sync(struct snd_dice
*dice
,
142 void *buf
, unsigned int len
)
144 return snd_dice_transaction_write(dice
, SND_DICE_ADDR_TYPE_SYNC
, offset
,
147 static inline int snd_dice_transaction_read_sync(struct snd_dice
*dice
,
149 void *buf
, unsigned int len
)
151 return snd_dice_transaction_read(dice
, SND_DICE_ADDR_TYPE_SYNC
, offset
,
155 int snd_dice_transaction_get_clock_source(struct snd_dice
*dice
,
156 unsigned int *source
);
157 int snd_dice_transaction_set_rate(struct snd_dice
*dice
, unsigned int rate
);
158 int snd_dice_transaction_get_rate(struct snd_dice
*dice
, unsigned int *rate
);
159 int snd_dice_transaction_set_enable(struct snd_dice
*dice
);
160 void snd_dice_transaction_clear_enable(struct snd_dice
*dice
);
161 int snd_dice_transaction_init(struct snd_dice
*dice
);
162 int snd_dice_transaction_reinit(struct snd_dice
*dice
);
163 void snd_dice_transaction_destroy(struct snd_dice
*dice
);
165 #define SND_DICE_RATES_COUNT 7
166 extern const unsigned int snd_dice_rates
[SND_DICE_RATES_COUNT
];
168 int snd_dice_stream_get_rate_mode(struct snd_dice
*dice
,
169 unsigned int rate
, unsigned int *mode
);
171 int snd_dice_stream_start_duplex(struct snd_dice
*dice
, unsigned int rate
);
172 void snd_dice_stream_stop_duplex(struct snd_dice
*dice
);
173 int snd_dice_stream_init_duplex(struct snd_dice
*dice
);
174 void snd_dice_stream_destroy_duplex(struct snd_dice
*dice
);
175 void snd_dice_stream_update_duplex(struct snd_dice
*dice
);
177 int snd_dice_stream_lock_try(struct snd_dice
*dice
);
178 void snd_dice_stream_lock_release(struct snd_dice
*dice
);
180 int snd_dice_create_pcm(struct snd_dice
*dice
);
182 int snd_dice_create_hwdep(struct snd_dice
*dice
);
184 void snd_dice_create_proc(struct snd_dice
*dice
);