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