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         const struct device_info *device_info;
  40         struct mutex mutex;
  41         spinlock_t lock;
  42
  43         bool wrong_dbs;
  44         bool has_output;
  45         u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
  46         u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
  47         bool assumed;
  48         struct cmp_connection out_conn;
  49         struct cmp_connection in_conn;
  50         struct amdtp_stream tx_stream;
  51         struct amdtp_stream rx_stream;
  52         unsigned int capture_substreams;
  53         unsigned int playback_substreams;
  54
  55         unsigned int midi_input_ports;
  56         unsigned int midi_output_ports;
  57
  58         int dev_lock_count;
  59         bool dev_lock_changed;
  60         wait_queue_head_t hwdep_wait;
  61
  62         const struct ieee1394_device_id *entry;
  63         void *spec;
  64 };
  65
  66 /*
  67  * AV/C Stream Format Information Specification 1.1 Working Draft
  68  * (Apr 2005, 1394TA)
  69  */
  70 int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
  71                           unsigned int pid, u8 *format, unsigned int len);
  72 int avc_stream_get_format(struct fw_unit *unit,
  73                           enum avc_general_plug_dir dir, unsigned int pid,
  74                           u8 *buf, unsigned int *len, unsigned int eid);
  75 static inline int
  76 avc_stream_get_format_single(struct fw_unit *unit,
  77                              enum avc_general_plug_dir dir, unsigned int pid,
  78                              u8 *buf, unsigned int *len)
  79 {
  80         return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
  81 }
  82 static inline int
  83 avc_stream_get_format_list(struct fw_unit *unit,
  84                            enum avc_general_plug_dir dir, unsigned int pid,
  85                            u8 *buf, unsigned int *len,
  86                            unsigned int eid)
  87 {
  88         return avc_stream_get_format(unit, dir, pid, buf, len, eid);
  89 }
  90
  91 /*
  92  * AV/C Digital Interface Command Set General Specification 4.2
  93  * (Sep 2004, 1394TA)
  94  */
  95 int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
  96                                 enum avc_general_plug_dir dir,
  97                                 unsigned short pid);
  98
  99 int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw,
 100                                  struct amdtp_stream *stream);
 101 int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
 102                                   struct amdtp_stream *stream,
 103                                   unsigned int rate, unsigned int pcm_channels);
 104 void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
 105                                   struct amdtp_stream *stream);
 106 void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
 107                                      struct amdtp_stream *stream);
 108 void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
 109                                     struct amdtp_stream *stream);
 110
 111 struct snd_oxfw_stream_formation {
 112         unsigned int rate;
 113         unsigned int pcm;
 114         unsigned int midi;
 115 };
 116 int snd_oxfw_stream_parse_format(u8 *format,
 117                                  struct snd_oxfw_stream_formation *formation);
 118 int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
 119                                 enum avc_general_plug_dir dir,
 120                                 struct snd_oxfw_stream_formation *formation);
 121
 122 int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
 123
 124 void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
 125 int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
 126 void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
 127
 128 int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
 129
 130 void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
 131
 132 int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
 133
 134 int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
 135
 136 int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
 137 int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
 138 void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);