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Linux/sound/firewire/oxfw/oxfw.h

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  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);
142 

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