sound/firewire/digi00x/digi00x.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * digi00x.h - a part of driver for Digidesign Digi 002/003 family
   4  *
   5  * Copyright (c) 2014-2015 Takashi Sakamoto
   6  */
   7
   8 #ifndef SOUND_DIGI00X_H_INCLUDED
   9 #define SOUND_DIGI00X_H_INCLUDED
  10
  11 #include <linux/compat.h>
  12 #include <linux/device.h>
  13 #include <linux/firewire.h>
  14 #include <linux/module.h>
  15 #include <linux/mod_devicetable.h>
  16 #include <linux/delay.h>
  17 #include <linux/slab.h>
  18 #include <linux/sched/signal.h>
  19
  20 #include <sound/core.h>
  21 #include <sound/initval.h>
  22 #include <sound/info.h>
  23 #include <sound/pcm.h>
  24 #include <sound/pcm_params.h>
  25 #include <sound/firewire.h>
  26 #include <sound/hwdep.h>
  27 #include <sound/rawmidi.h>
  28
  29 #include "../lib.h"
  30 #include "../iso-resources.h"
  31 #include "../amdtp-stream.h"
  32
  33 struct snd_dg00x {
  34         struct snd_card *card;
  35         struct fw_unit *unit;
  36
  37         struct mutex mutex;
  38         spinlock_t lock;
  39
  40         bool registered;
  41         struct delayed_work dwork;
  42
  43         struct amdtp_stream tx_stream;
  44         struct fw_iso_resources tx_resources;
  45
  46         struct amdtp_stream rx_stream;
  47         struct fw_iso_resources rx_resources;
  48
  49         unsigned int substreams_counter;
  50
  51         /* for uapi */
  52         int dev_lock_count;
  53         bool dev_lock_changed;
  54         wait_queue_head_t hwdep_wait;
  55
  56         /* For asynchronous messages. */
  57         struct fw_address_handler async_handler;
  58         u32 msg;
  59
  60         /* Console models have additional MIDI ports for control surface. */
  61         bool is_console;
  62
  63         struct amdtp_domain domain;
  64 };
  65
  66 #define DG00X_ADDR_BASE         0xffffe0000000ull
  67
  68 #define DG00X_OFFSET_STREAMING_STATE    0x0000
  69 #define DG00X_OFFSET_STREAMING_SET      0x0004
  70 /* unknown but address in host space    0x0008 */
  71 /* For LSB of the address               0x000c */
  72 /* unknown                              0x0010 */
  73 #define DG00X_OFFSET_MESSAGE_ADDR       0x0014
  74 /* For LSB of the address               0x0018 */
  75 /* unknown                              0x001c */
  76 /* unknown                              0x0020 */
  77 /* not used                     0x0024--0x00ff */
  78 #define DG00X_OFFSET_ISOC_CHANNELS      0x0100
  79 /* unknown                              0x0104 */
  80 /* unknown                              0x0108 */
  81 /* unknown                              0x010c */
  82 #define DG00X_OFFSET_LOCAL_RATE         0x0110
  83 #define DG00X_OFFSET_EXTERNAL_RATE      0x0114
  84 #define DG00X_OFFSET_CLOCK_SOURCE       0x0118
  85 #define DG00X_OFFSET_OPT_IFACE_MODE     0x011c
  86 /* unknown                              0x0120 */
  87 /* Mixer control on/off                 0x0124 */
  88 /* unknown                              0x0128 */
  89 #define DG00X_OFFSET_DETECT_EXTERNAL    0x012c
  90 /* unknown                              0x0138 */
  91 #define DG00X_OFFSET_MMC                0x0400
  92
  93 enum snd_dg00x_rate {
  94         SND_DG00X_RATE_44100 = 0,
  95         SND_DG00X_RATE_48000,
  96         SND_DG00X_RATE_88200,
  97         SND_DG00X_RATE_96000,
  98         SND_DG00X_RATE_COUNT,
  99 };
 100
 101 enum snd_dg00x_clock {
 102         SND_DG00X_CLOCK_INTERNAL = 0,
 103         SND_DG00X_CLOCK_SPDIF,
 104         SND_DG00X_CLOCK_ADAT,
 105         SND_DG00X_CLOCK_WORD,
 106         SND_DG00X_CLOCK_COUNT,
 107 };
 108
 109 enum snd_dg00x_optical_mode {
 110         SND_DG00X_OPT_IFACE_MODE_ADAT = 0,
 111         SND_DG00X_OPT_IFACE_MODE_SPDIF,
 112         SND_DG00X_OPT_IFACE_MODE_COUNT,
 113 };
 114
 115 #define DOT_MIDI_IN_PORTS       1
 116 #define DOT_MIDI_OUT_PORTS      2
 117
 118 int amdtp_dot_init(struct amdtp_stream *s, struct fw_unit *unit,
 119                    enum amdtp_stream_direction dir);
 120 int amdtp_dot_set_parameters(struct amdtp_stream *s, unsigned int rate,
 121                              unsigned int pcm_channels);
 122 void amdtp_dot_reset(struct amdtp_stream *s);
 123 int amdtp_dot_add_pcm_hw_constraints(struct amdtp_stream *s,
 124                                      struct snd_pcm_runtime *runtime);
 125 void amdtp_dot_midi_trigger(struct amdtp_stream *s, unsigned int port,
 126                           struct snd_rawmidi_substream *midi);
 127
 128 int snd_dg00x_transaction_register(struct snd_dg00x *dg00x);
 129 int snd_dg00x_transaction_reregister(struct snd_dg00x *dg00x);
 130 void snd_dg00x_transaction_unregister(struct snd_dg00x *dg00x);
 131
 132 extern const unsigned int snd_dg00x_stream_rates[SND_DG00X_RATE_COUNT];
 133 extern const unsigned int snd_dg00x_stream_pcm_channels[SND_DG00X_RATE_COUNT];
 134 int snd_dg00x_stream_get_external_rate(struct snd_dg00x *dg00x,
 135                                        unsigned int *rate);
 136 int snd_dg00x_stream_get_local_rate(struct snd_dg00x *dg00x,
 137                                     unsigned int *rate);
 138 int snd_dg00x_stream_set_local_rate(struct snd_dg00x *dg00x, unsigned int rate);
 139 int snd_dg00x_stream_get_clock(struct snd_dg00x *dg00x,
 140                                enum snd_dg00x_clock *clock);
 141 int snd_dg00x_stream_check_external_clock(struct snd_dg00x *dg00x,
 142                                           bool *detect);
 143 int snd_dg00x_stream_init_duplex(struct snd_dg00x *dg00x);
 144 int snd_dg00x_stream_reserve_duplex(struct snd_dg00x *dg00x, unsigned int rate,
 145                                     unsigned int frames_per_period,
 146                                     unsigned int frames_per_buffer);
 147 int snd_dg00x_stream_start_duplex(struct snd_dg00x *dg00x);
 148 void snd_dg00x_stream_stop_duplex(struct snd_dg00x *dg00x);
 149 void snd_dg00x_stream_update_duplex(struct snd_dg00x *dg00x);
 150 void snd_dg00x_stream_destroy_duplex(struct snd_dg00x *dg00x);
 151
 152 void snd_dg00x_stream_lock_changed(struct snd_dg00x *dg00x);
 153 int snd_dg00x_stream_lock_try(struct snd_dg00x *dg00x);
 154 void snd_dg00x_stream_lock_release(struct snd_dg00x *dg00x);
 155
 156 void snd_dg00x_proc_init(struct snd_dg00x *dg00x);
 157
 158 int snd_dg00x_create_pcm_devices(struct snd_dg00x *dg00x);
 159
 160 int snd_dg00x_create_midi_devices(struct snd_dg00x *dg00x);
 161
 162 int snd_dg00x_create_hwdep_device(struct snd_dg00x *dg00x);
 163 #endif