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9#ifndef SOUND_FIREWIRE_MOTU_H_INCLUDED
10#define SOUND_FIREWIRE_MOTU_H_INCLUDED
11
12#include <linux/device.h>
13#include <linux/firewire.h>
14#include <linux/firewire-constants.h>
15#include <linux/module.h>
16#include <linux/mod_devicetable.h>
17#include <linux/mutex.h>
18#include <linux/slab.h>
19#include <linux/compat.h>
20#include <linux/sched/signal.h>
21
22#include <sound/control.h>
23#include <sound/core.h>
24#include <sound/pcm.h>
25#include <sound/info.h>
26#include <sound/rawmidi.h>
27#include <sound/firewire.h>
28#include <sound/hwdep.h>
29
30#include "../lib.h"
31#include "../amdtp-stream.h"
32#include "../iso-resources.h"
33
34struct snd_motu_packet_format {
35 unsigned char midi_flag_offset;
36 unsigned char midi_byte_offset;
37 unsigned char pcm_byte_offset;
38
39 unsigned char msg_chunks;
40 unsigned char fixed_part_pcm_chunks[3];
41 unsigned char differed_part_pcm_chunks[3];
42};
43
44struct snd_motu {
45 struct snd_card *card;
46 struct fw_unit *unit;
47 struct mutex mutex;
48 spinlock_t lock;
49
50 bool registered;
51 struct delayed_work dwork;
52
53
54 const struct snd_motu_spec *spec;
55
56
57 struct snd_motu_packet_format tx_packet_formats;
58 struct snd_motu_packet_format rx_packet_formats;
59 struct amdtp_stream tx_stream;
60 struct amdtp_stream rx_stream;
61 struct fw_iso_resources tx_resources;
62 struct fw_iso_resources rx_resources;
63 unsigned int capture_substreams;
64 unsigned int playback_substreams;
65
66
67 struct fw_address_handler async_handler;
68 u32 msg;
69
70
71 int dev_lock_count;
72 bool dev_lock_changed;
73 wait_queue_head_t hwdep_wait;
74};
75
76enum snd_motu_spec_flags {
77 SND_MOTU_SPEC_SUPPORT_CLOCK_X2 = 0x0001,
78 SND_MOTU_SPEC_SUPPORT_CLOCK_X4 = 0x0002,
79 SND_MOTU_SPEC_TX_MICINST_CHUNK = 0x0004,
80 SND_MOTU_SPEC_TX_RETURN_CHUNK = 0x0008,
81 SND_MOTU_SPEC_TX_REVERB_CHUNK = 0x0010,
82 SND_MOTU_SPEC_TX_AESEBU_CHUNK = 0x0020,
83 SND_MOTU_SPEC_HAS_OPT_IFACE_A = 0x0040,
84 SND_MOTU_SPEC_HAS_OPT_IFACE_B = 0x0080,
85 SND_MOTU_SPEC_HAS_MIDI = 0x0100,
86};
87
88#define SND_MOTU_CLOCK_RATE_COUNT 6
89extern const unsigned int snd_motu_clock_rates[SND_MOTU_CLOCK_RATE_COUNT];
90
91enum snd_motu_clock_source {
92 SND_MOTU_CLOCK_SOURCE_INTERNAL,
93 SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB,
94 SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT,
95 SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_A,
96 SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B,
97 SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT,
98 SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A,
99 SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_B,
100 SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX,
101 SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR,
102 SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC,
103 SND_MOTU_CLOCK_SOURCE_UNKNOWN,
104};
105
106struct snd_motu_protocol {
107 int (*get_clock_rate)(struct snd_motu *motu, unsigned int *rate);
108 int (*set_clock_rate)(struct snd_motu *motu, unsigned int rate);
109 int (*get_clock_source)(struct snd_motu *motu,
110 enum snd_motu_clock_source *source);
111 int (*switch_fetching_mode)(struct snd_motu *motu, bool enable);
112 int (*cache_packet_formats)(struct snd_motu *motu);
113};
114
115struct snd_motu_spec {
116 const char *const name;
117 enum snd_motu_spec_flags flags;
118
119 unsigned char analog_in_ports;
120 unsigned char analog_out_ports;
121
122 const struct snd_motu_protocol *const protocol;
123};
124
125extern const struct snd_motu_protocol snd_motu_protocol_v2;
126extern const struct snd_motu_protocol snd_motu_protocol_v3;
127
128int amdtp_motu_init(struct amdtp_stream *s, struct fw_unit *unit,
129 enum amdtp_stream_direction dir,
130 const struct snd_motu_protocol *const protocol);
131int amdtp_motu_set_parameters(struct amdtp_stream *s, unsigned int rate,
132 unsigned int midi_ports,
133 struct snd_motu_packet_format *formats);
134int amdtp_motu_add_pcm_hw_constraints(struct amdtp_stream *s,
135 struct snd_pcm_runtime *runtime);
136void amdtp_motu_midi_trigger(struct amdtp_stream *s, unsigned int port,
137 struct snd_rawmidi_substream *midi);
138
139int snd_motu_transaction_read(struct snd_motu *motu, u32 offset, __be32 *reg,
140 size_t size);
141int snd_motu_transaction_write(struct snd_motu *motu, u32 offset, __be32 *reg,
142 size_t size);
143int snd_motu_transaction_register(struct snd_motu *motu);
144int snd_motu_transaction_reregister(struct snd_motu *motu);
145void snd_motu_transaction_unregister(struct snd_motu *motu);
146
147int snd_motu_stream_init_duplex(struct snd_motu *motu);
148void snd_motu_stream_destroy_duplex(struct snd_motu *motu);
149int snd_motu_stream_start_duplex(struct snd_motu *motu, unsigned int rate);
150void snd_motu_stream_stop_duplex(struct snd_motu *motu);
151int snd_motu_stream_lock_try(struct snd_motu *motu);
152void snd_motu_stream_lock_release(struct snd_motu *motu);
153
154void snd_motu_proc_init(struct snd_motu *motu);
155
156int snd_motu_create_pcm_devices(struct snd_motu *motu);
157
158int snd_motu_create_midi_devices(struct snd_motu *motu);
159
160int snd_motu_create_hwdep_device(struct snd_motu *motu);
161#endif
162
