sound/firewire/oxfw/oxfw.h

   1 /*
   2  * oxfw.h - a part of driver for OXFW970/971 based devices
   3  *
   4  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   5  * Licensed under the terms of the GNU General Public License, version 2.
   6  */
   7
   8 #include <linux/device.h>
   9 #include <linux/firewire.h>
  10 #include <linux/firewire-constants.h>
  11 #include <linux/module.h>
  12 #include <linux/mod_devicetable.h>
  13 #include <linux/mutex.h>
  14 #include <linux/slab.h>
  15 #include <linux/compat.h>
  16 #include <linux/sched/signal.h>
  17
  18 #include <sound/control.h>
  19 #include <sound/core.h>
  20 #include <sound/initval.h>
  21 #include <sound/pcm.h>
  22 #include <sound/pcm_params.h>
  23 #include <sound/info.h>
  24 #include <sound/rawmidi.h>
  25 #include <sound/firewire.h>
  26 #include <sound/hwdep.h>
  27
  28 #include "../lib.h"
  29 #include "../fcp.h"
  30 #include "../packets-buffer.h"
  31 #include "../iso-resources.h"
  32 #include "../amdtp-am824.h"
  33 #include "../cmp.h"
  34
  35 /* This is an arbitrary number for convinience. */
  36 #define SND_OXFW_STREAM_FORMAT_ENTRIES  10
  37 struct snd_oxfw {
  38         struct snd_card *card;
  39         struct fw_unit *unit;
  40         struct mutex mutex;
  41         spinlock_t lock;
  42
  43         bool registered;
  44         struct delayed_work dwork;
  45
  46         bool wrong_dbs;
  47         bool has_output;
  48         u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
  49         u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
  50         bool assumed;
  51         struct cmp_connection out_conn;
  52         struct cmp_connection in_conn;
  53         struct amdtp_stream tx_stream;
  54         struct amdtp_stream rx_stream;
  55         unsigned int capture_substreams;
  56         unsigned int playback_substreams;
  57
  58         unsigned int midi_input_ports;
  59         unsigned int midi_output_ports;
  60
  61         int dev_lock_count;
  62         bool dev_lock_changed;
  63         wait_queue_head_t hwdep_wait;
  64
  65         const struct ieee1394_device_id *entry;
  66         void *spec;
  67 };
  68
  69 /*
  70  * AV/C Stream Format Information Specification 1.1 Working Draft
  71  * (Apr 2005, 1394TA)
  72  */
  73 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
  74                           unsigned int pid, u8 *format, unsigned int len);
  75 int avc_stream_get_format(struct fw_unit *unit,
  76                           enum avc_general_plug_dir dir, unsigned int pid,
  77                           u8 *buf, unsigned int *len, unsigned int eid);
  78 static inline int
  79 avc_stream_get_format_single(struct fw_unit *unit,
  80                              enum avc_general_plug_dir dir, unsigned int pid,
  81                              u8 *buf, unsigned int *len)
  82 {
  83         return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
  84 }
  85 static inline int
  86 avc_stream_get_format_list(struct fw_unit *unit,
  87                            enum avc_general_plug_dir dir, unsigned int pid,
  88                            u8 *buf, unsigned int *len,
  89                            unsigned int eid)
  90 {
  91         return avc_stream_get_format(unit, dir, pid, buf, len, eid);
  92 }
  93
  94 /*
  95  * AV/C Digital Interface Command Set General Specification 4.2
  96  * (Sep 2004, 1394TA)
  97  */
  98 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
  99                                 enum avc_general_plug_dir dir,
 100                                 unsigned short pid);
 101
 102 int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
 103                                  struct amdtp_stream *stream);
 104 int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
 105                                   struct amdtp_stream *stream,
 106                                   unsigned int rate, unsigned int pcm_channels);
 107 void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
 108                                   struct amdtp_stream *stream);
 109 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
 110                                      struct amdtp_stream *stream);
 111 void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
 112                                     struct amdtp_stream *stream);
 113
 114 struct snd_oxfw_stream_formation {
 115         unsigned int rate;
 116         unsigned int pcm;
 117         unsigned int midi;
 118 };
 119 int snd_oxfw_stream_parse_format(u8 *format,
 120                                  struct snd_oxfw_stream_formation *formation);
 121 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
 122                                 enum avc_general_plug_dir dir,
 123                                 struct snd_oxfw_stream_formation *formation);
 124
 125 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
 126
 127 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
 128 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
 129 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
 130
 131 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
 132
 133 void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
 134
 135 int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
 136
 137 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
 138
 139 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
 140 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
 141 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);