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
 36struct 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 */
 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_simplex(struct snd_oxfw *oxfw,
102				 struct amdtp_stream *stream);
103int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw,
104				  struct amdtp_stream *stream,
105				  unsigned int rate, unsigned int pcm_channels);
106void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw,
107				  struct amdtp_stream *stream);
108void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw,
109				     struct amdtp_stream *stream);
110void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw,
111				    struct amdtp_stream *stream);
112
113struct snd_oxfw_stream_formation {
114	unsigned int rate;
115	unsigned int pcm;
116	unsigned int midi;
117};
118int snd_oxfw_stream_parse_format(u8 *format,
119				 struct snd_oxfw_stream_formation *formation);
120int 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
124int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
125
126void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw);
127int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw);
128void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw);
129
130int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
131
132void snd_oxfw_proc_init(struct snd_oxfw *oxfw);
133
134int snd_oxfw_create_midi(struct snd_oxfw *oxfw);
135
136int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw);
137
138int snd_oxfw_add_spkr(struct snd_oxfw *oxfw, bool is_lacie);
139int snd_oxfw_scs1x_add(struct snd_oxfw *oxfw);
140void snd_oxfw_scs1x_update(struct snd_oxfw *oxfw);