5cd1d3f47a
In previous commit, this driver can get to know stream formations at each supported sampling rates. This commit uses it to make PCM rules/constraints and obsoletes hard-coded rules/constraints. For this purpose, this commit adds 'struct snd_oxfw_stream_formation' and snd_oxfw_stream_parse_format() to parse data channel formation of data block. According to datasheet of OXFW970/971, they support 32.0kHz to 196.0kHz. As long as developers investigate, some devices are confirmed to have several formats for the same sampling rate. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*
|
|
* 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);
|