LXR linux/sound/firewire/oxfw/oxfw.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * oxfw.h - a part of driver for OXFW970/971 based devices
   4 *
   5 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   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
  37struct 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 substreams_count;
  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 */
  72int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
  73                          unsigned int pid, u8 *format, unsigned int len);
  74int 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);
  77static inline int
  78avc_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}
  84static inline int
  85avc_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 */
  97int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
  98                                enum avc_general_plug_dir dir,
  99                                unsigned short pid);
 100
 101int snd_oxfw_stream_init_duplex(struct snd_oxfw *oxfw);
 102int snd_oxfw_stream_reserve_duplex(struct snd_oxfw *oxfw,
 103                                   struct amdtp_stream *stream,
 104                                   unsigned int rate, unsigned int pcm_channels);
 105int snd_oxfw_stream_start_duplex(struct snd_oxfw *oxfw);
 106void snd_oxfw_stream_stop_duplex(struct snd_oxfw *oxfw);
 107void snd_oxfw_stream_destroy_duplex(struct snd_oxfw *oxfw);
 108void snd_oxfw_stream_update_duplex(struct snd_oxfw *oxfw);
 109
 110struct snd_oxfw_stream_formation {
 111        unsigned int rate;
 112        unsigned int pcm;
 113        unsigned int midi;
 114};
 115int snd_oxfw_stream_parse_format(u8 *format,
 116                                 struct snd_oxfw_stream_formation *formation);
 117int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
 118                                enum avc_general_plug_dir dir,
 119                                struct snd_oxfw_stream_formation *formation);
 120
 121int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
 122
 123void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
 124int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
 125void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
 126
 127int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
 128
 129void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
 130
 131int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
 132
 133int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
 134
 135int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
 136int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
 137void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);
 138