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8#ifndef SOUND_TASCAM_H_INCLUDED
9#define SOUND_TASCAM_H_INCLUDED
10
11#include <linux/device.h>
12#include <linux/firewire.h>
13#include <linux/firewire-constants.h>
14#include <linux/module.h>
15#include <linux/mod_devicetable.h>
16#include <linux/mutex.h>
17#include <linux/slab.h>
18#include <linux/compat.h>
19#include <linux/sched/signal.h>
20
21#include <sound/core.h>
22#include <sound/initval.h>
23#include <sound/info.h>
24#include <sound/pcm.h>
25#include <sound/pcm_params.h>
26#include <sound/firewire.h>
27#include <sound/hwdep.h>
28#include <sound/rawmidi.h>
29
30#include "../lib.h"
31#include "../amdtp-stream.h"
32#include "../iso-resources.h"
33
34struct snd_tscm_spec {
35 const char *const name;
36 bool has_adat;
37 bool has_spdif;
38 unsigned int pcm_capture_analog_channels;
39 unsigned int pcm_playback_analog_channels;
40 unsigned int midi_capture_ports;
41 unsigned int midi_playback_ports;
42};
43
44#define TSCM_MIDI_IN_PORT_MAX 4
45#define TSCM_MIDI_OUT_PORT_MAX 4
46
47struct snd_fw_async_midi_port {
48 struct fw_device *parent;
49 struct work_struct work;
50 bool idling;
51 ktime_t next_ktime;
52 bool error;
53
54 struct fw_transaction transaction;
55
56 u8 buf[4];
57 u8 running_status;
58 bool on_sysex;
59
60 struct snd_rawmidi_substream *substream;
61 int consume_bytes;
62};
63
64#define SND_TSCM_QUEUE_COUNT 16
65
66struct snd_tscm {
67 struct snd_card *card;
68 struct fw_unit *unit;
69
70 struct mutex mutex;
71 spinlock_t lock;
72
73 bool registered;
74 struct delayed_work dwork;
75 const struct snd_tscm_spec *spec;
76
77 struct fw_iso_resources tx_resources;
78 struct fw_iso_resources rx_resources;
79 struct amdtp_stream tx_stream;
80 struct amdtp_stream rx_stream;
81 unsigned int substreams_counter;
82
83 int dev_lock_count;
84 bool dev_lock_changed;
85 wait_queue_head_t hwdep_wait;
86
87
88 struct fw_address_handler async_handler;
89 struct snd_rawmidi_substream *tx_midi_substreams[TSCM_MIDI_IN_PORT_MAX];
90
91
92 struct snd_fw_async_midi_port out_ports[TSCM_MIDI_OUT_PORT_MAX];
93
94
95 __be32 state[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
96 struct snd_hwdep *hwdep;
97 struct snd_firewire_tascam_change queue[SND_TSCM_QUEUE_COUNT];
98 unsigned int pull_pos;
99 unsigned int push_pos;
100};
101
102#define TSCM_ADDR_BASE 0xffff00000000ull
103
104#define TSCM_OFFSET_FIRMWARE_REGISTER 0x0000
105#define TSCM_OFFSET_FIRMWARE_FPGA 0x0004
106#define TSCM_OFFSET_FIRMWARE_ARM 0x0008
107#define TSCM_OFFSET_FIRMWARE_HW 0x000c
108
109#define TSCM_OFFSET_ISOC_TX_CH 0x0200
110#define TSCM_OFFSET_UNKNOWN 0x0204
111#define TSCM_OFFSET_START_STREAMING 0x0208
112#define TSCM_OFFSET_ISOC_RX_CH 0x020c
113#define TSCM_OFFSET_ISOC_RX_ON 0x0210
114#define TSCM_OFFSET_TX_PCM_CHANNELS 0x0214
115#define TSCM_OFFSET_RX_PCM_CHANNELS 0x0218
116#define TSCM_OFFSET_MULTIPLEX_MODE 0x021c
117#define TSCM_OFFSET_ISOC_TX_ON 0x0220
118
119#define TSCM_OFFSET_CLOCK_STATUS 0x0228
120#define TSCM_OFFSET_SET_OPTION 0x022c
121
122#define TSCM_OFFSET_MIDI_TX_ON 0x0300
123#define TSCM_OFFSET_MIDI_TX_ADDR_HI 0x0304
124#define TSCM_OFFSET_MIDI_TX_ADDR_LO 0x0308
125
126#define TSCM_OFFSET_LED_POWER 0x0404
127
128#define TSCM_OFFSET_MIDI_RX_QUAD 0x4000
129
130enum snd_tscm_clock {
131 SND_TSCM_CLOCK_INTERNAL = 0,
132 SND_TSCM_CLOCK_WORD = 1,
133 SND_TSCM_CLOCK_SPDIF = 2,
134 SND_TSCM_CLOCK_ADAT = 3,
135};
136
137int amdtp_tscm_init(struct amdtp_stream *s, struct fw_unit *unit,
138 enum amdtp_stream_direction dir, unsigned int pcm_channels);
139int amdtp_tscm_set_parameters(struct amdtp_stream *s, unsigned int rate);
140int amdtp_tscm_add_pcm_hw_constraints(struct amdtp_stream *s,
141 struct snd_pcm_runtime *runtime);
142
143int snd_tscm_stream_get_rate(struct snd_tscm *tscm, unsigned int *rate);
144int snd_tscm_stream_get_clock(struct snd_tscm *tscm,
145 enum snd_tscm_clock *clock);
146int snd_tscm_stream_init_duplex(struct snd_tscm *tscm);
147void snd_tscm_stream_update_duplex(struct snd_tscm *tscm);
148void snd_tscm_stream_destroy_duplex(struct snd_tscm *tscm);
149int snd_tscm_stream_reserve_duplex(struct snd_tscm *tscm, unsigned int rate);
150int snd_tscm_stream_start_duplex(struct snd_tscm *tscm, unsigned int rate);
151void snd_tscm_stream_stop_duplex(struct snd_tscm *tscm);
152
153void snd_tscm_stream_lock_changed(struct snd_tscm *tscm);
154int snd_tscm_stream_lock_try(struct snd_tscm *tscm);
155void snd_tscm_stream_lock_release(struct snd_tscm *tscm);
156
157void snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port);
158
159static inline void
160snd_fw_async_midi_port_run(struct snd_fw_async_midi_port *port,
161 struct snd_rawmidi_substream *substream)
162{
163 if (!port->error) {
164 port->substream = substream;
165 schedule_work(&port->work);
166 }
167}
168
169static inline void
170snd_fw_async_midi_port_finish(struct snd_fw_async_midi_port *port)
171{
172 port->substream = NULL;
173 cancel_work_sync(&port->work);
174 port->error = false;
175}
176
177int snd_tscm_transaction_register(struct snd_tscm *tscm);
178int snd_tscm_transaction_reregister(struct snd_tscm *tscm);
179void snd_tscm_transaction_unregister(struct snd_tscm *tscm);
180
181void snd_tscm_proc_init(struct snd_tscm *tscm);
182
183int snd_tscm_create_pcm_devices(struct snd_tscm *tscm);
184
185int snd_tscm_create_midi_devices(struct snd_tscm *tscm);
186
187int snd_tscm_create_hwdep_device(struct snd_tscm *tscm);
188
189#endif
190
