#include <dev/sound/pcm/sound.h>
#include "feeder_if.h"

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Data Structures
struct	feedertab_entry

Macros
#define	MAXFEEDERS 256

#define	score_signeq(s1, s2) (((s1) & 0x1) == ((s2) & 0x1))

#define	score_endianeq(s1, s2) (((s1) & 0x2) == ((s2) & 0x2))

#define	score_cheq(s1, s2) (((s1) & 0xfc) == ((s2) & 0xfc))

#define	score_chgt(s1, s2) (((s1) & 0xfc) > ((s2) & 0xfc))

#define	score_chlt(s1, s2) (((s1) & 0xfc) < ((s2) & 0xfc))

#define	score_val(s1) ((s1) & 0x3f00)

#define	score_cse(s1) ((s1) & 0x7f)

Functions
	SND_DECLARE_FILE ("$FreeBSD$")

static	MALLOC_DEFINE (M_FEEDER, "feeder", "pcm feeder")

static	SLIST_HEAD (feedertab_entry)

static void	feeder_unregisterall (void *p)

static int	cmpdesc (struct pcm_feederdesc n, struct pcm_feederdesc m)

static void	feeder_destroy (struct pcm_feeder *f)

static struct pcm_feeder *	feeder_create (struct feeder_class fc, struct pcm_feederdesc desc)

struct feeder_class *	feeder_getclass (struct pcm_feederdesc *desc)

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)

u_int32_t	snd_fmtscore (u_int32_t fmt)

static u_int32_t	snd_fmtbestfunc (u_int32_t fmt, u_int32_t *fmts, int cheq)

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)

void	feeder_printchain (struct pcm_feeder *head)

static int	feed_root (struct pcm_feeder feeder, struct pcm_channel ch, u_int8_t buffer, u_int32_t count, void source)

	SYSINIT (feeder_root, SI_SUB_DRIVERS, SI_ORDER_FIRST, feeder_register, &feeder_root_class)

	SYSUNINIT (feeder_root, SI_SUB_DRIVERS, SI_ORDER_FIRST, feeder_unregisterall, NULL)

Variables
static kobj_method_t	feeder_root_methods []

static struct feeder_class	feeder_root_class

Macro Definition Documentation

◆ MAXFEEDERS

#define MAXFEEDERS 256

Definition at line 42 of file feeder.c.

◆ score_cheq

#define score_cheq	(	s1,
		s2
	)	(((s1) & 0xfc) == ((s2) & 0xfc))

Definition at line 313 of file feeder.c.

◆ score_chgt

#define score_chgt	(	s1,
		s2
	)	(((s1) & 0xfc) > ((s2) & 0xfc))

Definition at line 314 of file feeder.c.

◆ score_chlt

#define score_chlt	(	s1,
		s2
	)	(((s1) & 0xfc) < ((s2) & 0xfc))

Definition at line 315 of file feeder.c.

◆ score_cse

#define score_cse ( s1 ) ((s1) & 0x7f)

Definition at line 317 of file feeder.c.

◆ score_endianeq

#define score_endianeq	(	s1,
		s2
	)	(((s1) & 0x2) == ((s2) & 0x2))

Definition at line 312 of file feeder.c.

◆ score_signeq

#define score_signeq	(	s1,
		s2
	)	(((s1) & 0x1) == ((s2) & 0x1))

Definition at line 311 of file feeder.c.

◆ score_val

#define score_val ( s1 ) ((s1) & 0x3f00)

Definition at line 316 of file feeder.c.

Function Documentation

◆ chn_addfeeder()

int chn_addfeeder	(	struct pcm_channel *	c,
		struct feeder_class *	fc,
		struct pcm_feederdesc *	desc
	)

Definition at line 238 of file feeder.c.

References c, desc, pcm_channel::feeder, feeder_create(), pcm_feeder::parent, and pcm_feeder::source.

Referenced by chn_init(), feeder_build_eq(), feeder_build_format(), feeder_build_matrix(), feeder_build_mixer(), feeder_build_rate(), feeder_build_root(), and feeder_build_volume().

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◆ chn_findfeeder()

struct pcm_feeder * chn_findfeeder	(	struct pcm_channel *	c,
		u_int32_t	type
	)

Definition at line 270 of file feeder.c.

References c, pcm_feeder::desc, pcm_channel::feeder, pcm_feeder::source, type, and pcm_feederdesc::type.

Referenced by chn_syncstate(), mixer_set_eq(), sysctl_dev_pcm_eq(), sysctl_dev_pcm_eq_preamp(), and sysctl_hw_snd_feeder_rate_quality().

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◆ chn_removefeeder()

int chn_removefeeder ( struct pcm_channel * c )

Definition at line 256 of file feeder.c.

References c, pcm_channel::feeder, feeder_destroy(), and pcm_feeder::source.

Referenced by chn_kill(), and feeder_chain().

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◆ cmpdesc()

static int cmpdesc	(	struct pcm_feederdesc *	n,
		struct pcm_feederdesc *	m
	)

static

Definition at line 171 of file feeder.c.

References m, n, and pcmchan_matrix::type.

Referenced by feeder_getclass().

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◆ feed_root()

static int feed_root	(	struct pcm_feeder *	feeder,
		struct pcm_channel *	ch,
		u_int8_t *	buffer,
		u_int32_t	count,
		void *	source
	)

static

Definition at line 458 of file feeder.c.

References buffer, CHN_F_CLOSING, CHN_F_VIRTUAL, count, pcm_channel::direction, pcm_channel::feedcount, pcm_channel::flags, offset, PCMDIR_REC, snd_verbose, sndbuf_dispose(), sndbuf_getfmt(), sndbuf_getready(), sndbuf_zerodata(), source, src, and pcm_channel::xruns.

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◆ feeder_create()

static struct pcm_feeder * feeder_create	(	struct feeder_class *	fc,
		struct pcm_feederdesc *	desc
	)

static

Definition at line 187 of file feeder.c.

References pcm_feeder::class, feeder_class::data, pcm_feeder::data, desc, pcm_feeder::desc, pcm_feeder::desc_static, feeder_destroy(), FEEDER_ROOT, pcm_feederdesc::flags, pcm_feederdesc::idx, pcm_feederdesc::in, pcm_feederdesc::out, pcm_feeder::parent, pcm_feeder::source, and pcm_feederdesc::type.

Referenced by chn_addfeeder().

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◆ feeder_destroy()

static void feeder_destroy ( struct pcm_feeder * f )

static

Definition at line 180 of file feeder.c.

Referenced by chn_removefeeder(), and feeder_create().

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◆ feeder_getclass()

struct feeder_class * feeder_getclass ( struct pcm_feederdesc * desc )

Definition at line 224 of file feeder.c.

References cmpdesc(), and desc.

Referenced by chn_init(), feeder_build_eq(), feeder_build_format(), feeder_build_matrix(), feeder_build_mixer(), feeder_build_rate(), feeder_build_root(), and feeder_build_volume().

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◆ feeder_printchain()

void feeder_printchain ( struct pcm_feeder * head )

Definition at line 442 of file feeder.c.

References pcm_feeder::class, pcm_feeder::desc, pcm_feederdesc::idx, and pcm_feeder::source.

◆ feeder_unregisterall()

static void feeder_unregisterall ( void * p )

static

Definition at line 158 of file feeder.c.

References free, and next.

◆ MALLOC_DEFINE()

static MALLOC_DEFINE	(	M_FEEDER	,
		"feeder"	,
		"pcm feeder"
	)

static

◆ SLIST_HEAD()

static SLIST_HEAD ( feedertab_entry )

static

Definition at line 52 of file feeder.c.

References chn_latency, CHN_LATENCY_DEFAULT, CHN_LATENCY_MAX, CHN_LATENCY_MIN, chn_latency_profile, CHN_LATENCY_PROFILE_DEFAULT, CHN_LATENCY_PROFILE_MAX, CHN_LATENCY_PROFILE_MIN, feeder_class::desc, feeder_rate_max, feeder_rate_min, feeder_rate_round, FEEDRATE_MAX, FEEDRATE_MIN, FEEDRATE_RATEMAX, FEEDRATE_RATEMIN, FEEDRATE_ROUNDHZ, FEEDRATE_ROUNDHZ_MAX, FEEDRATE_ROUNDHZ_MIN, pcm_feederdesc::in, MAXFEEDERS, pcm_feederdesc::out, pcm_veto_load, PCMMAXUNIT, snd_maxautovchans, SND_MAXVCHANS, snd_unit, snd_unit_init(), snd_verbose, and pcm_feederdesc::type.

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◆ SND_DECLARE_FILE()

SND_DECLARE_FILE ( "$FreeBSD$" )

◆ snd_fmtbest()

u_int32_t snd_fmtbest	(	u_int32_t	fmt,
		u_int32_t *	fmts
	)

Definition at line 408 of file feeder.c.

References AFMT_CHANNEL, fmt, fmts, score_val, snd_fmtbestbit(), snd_fmtbestchannel(), snd_fmtscore(), and snd_fmtvalid().

Referenced by chn_notify(), and feeder_chain().

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◆ snd_fmtbestbit()

u_int32_t snd_fmtbestbit	(	u_int32_t	fmt,
		u_int32_t *	fmts
	)

Definition at line 396 of file feeder.c.

References fmt, fmts, and snd_fmtbestfunc().

Referenced by snd_fmtbest().

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◆ snd_fmtbestchannel()

u_int32_t snd_fmtbestchannel	(	u_int32_t	fmt,
		u_int32_t *	fmts
	)

Definition at line 402 of file feeder.c.

References fmt, fmts, and snd_fmtbestfunc().

Referenced by snd_fmtbest().

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◆ snd_fmtbestfunc()

static u_int32_t snd_fmtbestfunc	(	u_int32_t	fmt,
		u_int32_t *	fmts,
		int	cheq
	)

static

Definition at line 351 of file feeder.c.

References fmt, fmts, score_cheq, score_chgt, score_chlt, score_cse, score_endianeq, score_signeq, score_val, snd_fmtscore(), and snd_fmtvalid().

Referenced by snd_fmtbestbit(), and snd_fmtbestchannel().

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◆ snd_fmtscore()

u_int32_t snd_fmtscore ( u_int32_t fmt )

Definition at line 320 of file feeder.c.

References AFMT_16BIT, AFMT_24BIT, AFMT_32BIT, AFMT_8BIT, AFMT_BIGENDIAN, AFMT_CHANNEL, AFMT_SIGNED, and fmt.

Referenced by snd_fmtbest(), and snd_fmtbestfunc().

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◆ SYSINIT()

SYSINIT	(	feeder_root	,
		SI_SUB_DRIVERS	,
		SI_ORDER_FIRST	,
		feeder_register	,
		&	feeder_root_class
	)

◆ SYSUNINIT()

SYSUNINIT	(	feeder_root	,
		SI_SUB_DRIVERS	,
		SI_ORDER_FIRST	,
		feeder_unregisterall	,
		NULL
	)

Variable Documentation

◆ feeder_root_class

struct feeder_class feeder_root_class

static

Initial value:

= {
        .name =         "feeder_root",
        .methods =      feeder_root_methods,
        .size =         sizeof(struct pcm_feeder),
        .desc =         NULL,
        .data =         NULL,
}

Definition at line 514 of file feeder.c.

◆ feeder_root_methods

kobj_method_t feeder_root_methods[]

static

Initial value:

= {
        KOBJMETHOD(feeder_feed,         feed_root),
        KOBJMETHOD_END
}

Definition at line 510 of file feeder.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ MAXFEEDERS

◆ score_cheq

◆ score_chgt

◆ score_chlt

◆ score_cse

◆ score_endianeq

◆ score_signeq

◆ score_val

Function Documentation

◆ chn_addfeeder()

◆ chn_findfeeder()

◆ chn_removefeeder()

◆ cmpdesc()

◆ feed_root()

◆ feeder_create()

◆ feeder_destroy()

◆ feeder_getclass()

◆ feeder_printchain()

◆ feeder_unregisterall()

◆ MALLOC_DEFINE()

◆ SLIST_HEAD()

◆ SND_DECLARE_FILE()

◆ snd_fmtbest()

◆ snd_fmtbestbit()

◆ snd_fmtbestchannel()

◆ snd_fmtbestfunc()

◆ snd_fmtscore()

◆ SYSINIT()

◆ SYSUNINIT()

Variable Documentation

◆ feeder_root_class

◆ feeder_root_methods