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/*-
* Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org>
* Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
struct pcm_feederdesc {
u_int32_t type;
u_int32_t in, out;
u_int32_t flags;
int idx;
};
struct feeder_class {
KOBJ_CLASS_FIELDS;
struct pcm_feederdesc *desc;
void *data;
};
struct pcm_feeder {
KOBJ_FIELDS;
int align;
struct pcm_feederdesc *desc, desc_static;
void *data;
struct feeder_class *class;
struct pcm_feeder *source, *parent;
};
void feeder_register(void *p);
struct feeder_class *feeder_getclass(struct pcm_feederdesc *desc);
u_int32_t snd_fmtscore(u_int32_t fmt);
u_int32_t snd_fmtbestbit(u_int32_t fmt, u_int32_t *fmts);
u_int32_t snd_fmtbestchannel(u_int32_t fmt, u_int32_t *fmts);
u_int32_t snd_fmtbest(u_int32_t fmt, u_int32_t *fmts);
int chn_addfeeder(struct pcm_channel *c, struct feeder_class *fc,
struct pcm_feederdesc *desc);
int chn_removefeeder(struct pcm_channel *c);
struct pcm_feeder *chn_findfeeder(struct pcm_channel *c, u_int32_t type);
void feeder_printchain(struct pcm_feeder *head);
int feeder_chain(struct pcm_channel *);
#define FEEDER_DECLARE(feeder, pdata) \
static struct feeder_class feeder ## _class = { \
.name = #feeder, \
.methods = feeder ## _methods, \
.size = sizeof(struct pcm_feeder), \
.desc = feeder ## _desc, \
.data = pdata, \
}; \
SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_ANY, feeder_register, \
&feeder ## _class)
enum {
FEEDER_ROOT,
FEEDER_FORMAT,
FEEDER_MIXER,
FEEDER_RATE,
FEEDER_EQ,
FEEDER_VOLUME,
FEEDER_MATRIX,
FEEDER_LAST,
};
/* feeder_format */
enum {
FEEDFORMAT_CHANNELS
};
/* feeder_mixer */
enum {
FEEDMIXER_CHANNELS
};
/* feeder_rate */
enum {
FEEDRATE_SRC,
FEEDRATE_DST,
FEEDRATE_QUALITY,
FEEDRATE_CHANNELS
};
#define FEEDRATE_RATEMIN 1
#define FEEDRATE_RATEMAX 2016000 /* 48000 * 42 */
#define FEEDRATE_MIN 1
#define FEEDRATE_MAX 0x7fffff /* sign 24bit ~ 8ghz ! */
#define FEEDRATE_ROUNDHZ 25
#define FEEDRATE_ROUNDHZ_MIN 0
#define FEEDRATE_ROUNDHZ_MAX 500
extern int feeder_rate_min;
extern int feeder_rate_max;
extern int feeder_rate_round;
extern int feeder_rate_quality;
/* feeder_eq */
enum {
FEEDEQ_CHANNELS,
FEEDEQ_RATE,
FEEDEQ_TREBLE,
FEEDEQ_BASS,
FEEDEQ_PREAMP,
FEEDEQ_STATE,
FEEDEQ_DISABLE,
FEEDEQ_ENABLE,
FEEDEQ_BYPASS,
FEEDEQ_UNKNOWN
};
int feeder_eq_validrate(uint32_t);
void feeder_eq_initsys(device_t);
/* feeder_volume */
enum {
FEEDVOLUME_CLASS,
FEEDVOLUME_CHANNELS,
FEEDVOLUME_STATE,
FEEDVOLUME_ENABLE,
FEEDVOLUME_BYPASS
};
int feeder_volume_apply_matrix(struct pcm_feeder *, struct pcmchan_matrix *);
/* feeder_matrix */
int feeder_matrix_default_id(uint32_t);
struct pcmchan_matrix *feeder_matrix_default_channel_map(uint32_t);
uint32_t feeder_matrix_default_format(uint32_t);
int feeder_matrix_format_id(uint32_t);
struct pcmchan_matrix *feeder_matrix_format_map(uint32_t);
struct pcmchan_matrix *feeder_matrix_id_map(int);
int feeder_matrix_setup(struct pcm_feeder *, struct pcmchan_matrix *,
struct pcmchan_matrix *);
int feeder_matrix_compare(struct pcmchan_matrix *, struct pcmchan_matrix *);
/* 4Front OSS stuffs */
int feeder_matrix_oss_get_channel_order(struct pcmchan_matrix *,
unsigned long long *);
int feeder_matrix_oss_set_channel_order(struct pcmchan_matrix *,
unsigned long long *);
#if 0
/* feeder_matrix */
enum {
FEEDMATRIX_TYPE,
FEEDMATRIX_RESET,
FEEDMATRIX_CHANNELS_IN,
FEEDMATRIX_CHANNELS_OUT,
FEEDMATRIX_SET_MAP
};
enum {
FEEDMATRIX_TYPE_NONE,
FEEDMATRIX_TYPE_AUTO,
FEEDMATRIX_TYPE_2X1,
FEEDMATRIX_TYPE_1X2,
FEEDMATRIX_TYPE_2X2
};
#define FEEDMATRIX_TYPE_STEREO_TO_MONO FEEDMATRIX_TYPE_2X1
#define FEEDMATRIX_TYPE_MONO_TO_STEREO FEEDMATRIX_TYPE_1X2
#define FEEDMATRIX_TYPE_SWAP_STEREO FEEDMATRIX_TYPE_2X2
#define FEEDMATRIX_MAP(x, y) ((((x) & 0x3f) << 6) | ((y) & 0x3f))
#define FEEDMATRIX_MAP_SRC(x) ((x) & 0x3f)
#define FEEDMATRIX_MAP_DST(x) (((x) >> 6) & 0x3f)
#endif
/*
* By default, various feeders only deal with sign 16/32 bit native-endian
* since it should provide the fastest processing path. Processing 8bit samples
* is too noisy due to limited dynamic range, while 24bit is quite slow due to
* unnatural per-byte read/write. However, for debugging purposes, ensuring
* implementation correctness and torture test, the following can be defined:
*
* SND_FEEDER_MULTIFORMAT - Compile all type of converters, but force
* 8bit samples to be converted to 16bit
* native-endian for better dynamic range.
* Process 24bit samples natively.
* SND_FEEDER_FULL_MULTIFORMAT - Ditto, but process 8bit samples natively.
*/
#ifdef SND_FEEDER_FULL_MULTIFORMAT
#undef SND_FEEDER_MULTIFORMAT
#define SND_FEEDER_MULTIFORMAT 1
#endif
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