/*
* oxfw.h - a part of driver for OXFW970/971 based devices
*
* Copyright (c) Clemens Ladisch <clemens@ladisch.de>
* Licensed under the terms of the GNU General Public License, version 2.
*/
#include <linux/device.h>
#include <linux/firewire.h>
#include <linux/firewire-constants.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include "../lib.h"
#include "../fcp.h"
#include "../packets-buffer.h"
#include "../iso-resources.h"
#include "../amdtp.h"
#include "../cmp.h"
struct device_info {
const char *driver_name;
const char *vendor_name;
const char *model_name;
unsigned int mixer_channels;
u8 mute_fb_id;
u8 volume_fb_id;
};
/* This is an arbitrary number for convinience. */
#define SND_OXFW_STREAM_FORMAT_ENTRIES 10
struct snd_oxfw {
struct snd_card *card;
struct fw_unit *unit;
const struct device_info *device_info;
struct mutex mutex;
u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES];
bool assumed;
struct cmp_connection in_conn;
struct amdtp_stream rx_stream;
bool mute;
s16 volume[6];
s16 volume_min;
s16 volume_max;
};
/*
* AV/C Stream Format Information Specification 1.1 Working Draft
* (Apr 2005, 1394TA)
*/
int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir,
unsigned int pid, u8 *format, unsigned int len);
int avc_stream_get_format(struct fw_unit *unit,
enum avc_general_plug_dir dir, unsigned int pid,
u8 *buf, unsigned int *len, unsigned int eid);
static inline int
avc_stream_get_format_single(struct fw_unit *unit,
enum avc_general_plug_dir dir, unsigned int pid,
u8 *buf, unsigned int *len)
{
return avc_stream_get_format(unit, dir, pid, buf, len, 0xff);
}
static inline int
avc_stream_get_format_list(struct fw_unit *unit,
enum avc_general_plug_dir dir, unsigned int pid,
u8 *buf, unsigned int *len,
unsigned int eid)
{
return avc_stream_get_format(unit, dir, pid, buf, len, eid);
}
/*
* AV/C Digital Interface Command Set General Specification 4.2
* (Sep 2004, 1394TA)
*/
int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate,
enum avc_general_plug_dir dir,
unsigned short pid);
int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw);
int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw);
void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw);
struct snd_oxfw_stream_formation {
unsigned int rate;
unsigned int pcm;
unsigned int midi;
};
int snd_oxfw_stream_parse_format(u8 *format,
struct snd_oxfw_stream_formation *formation);
int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw,
enum avc_general_plug_dir dir,
struct snd_oxfw_stream_formation *formation);
int snd_oxfw_stream_discover(struct snd_oxfw *oxfw);
int snd_oxfw_create_pcm(struct snd_oxfw *oxfw);
int snd_oxfw_create_mixer(struct snd_oxfw *oxfw);
