unit.c File Reference

#include <sys/param.h>
#include <sys/systm.h>
#include <dev/sound/unit.h>

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Macros
#define	SND_UNIT_ASSERT()
#define	MKMASK(x)   ((1 << snd_##x##_shift) - 1)

Functions
int	snd_max_u (void)
int	snd_max_d (void)
int	snd_max_c (void)
int	snd_unit2u (int unit)
int	snd_unit2d (int unit)
int	snd_unit2c (int unit)
int	snd_u2unit (int u)
int	snd_d2unit (int d)
int	snd_c2unit (int c)
int	snd_mkunit (int u, int d, int c)
void	snd_unit_init (void)

Variables
static int	snd_u_shift = 9
static int	snd_d_shift = 5
static int	snd_c_shift = 10
static int	snd_unit_initialized = 0

Macro Definition Documentation

MKMASK

#define MKMASK

(

x

)

((1 << snd_##x##_shift) - 1)

Definition at line 81 of file unit.c.

SND_UNIT_ASSERT

#define SND_UNIT_ASSERT

(

)

Value:

                                KASSERT(snd_unit_initialized != 0,      \
                                ("%s(): Uninitialized sound unit!",     \
                                __func__))

Definition at line 76 of file unit.c.

Function Documentation

snd_c2unit()

int snd_c2unit

(

int

c

)

Definition at line 148 of file unit.c.

References c, MKMASK, and SND_UNIT_ASSERT.

Referenced by dsp_clone().

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snd_d2unit()

int snd_d2unit

(

int

d

)

Definition at line 140 of file unit.c.

References MKMASK, snd_c_shift, and SND_UNIT_ASSERT.

Referenced by dsp_clone().

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snd_max_c()

int snd_max_c

(

void

)

Definition at line 100 of file unit.c.

References c, MKMASK, and SND_UNIT_ASSERT.

Referenced by snd_unit_init().

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snd_max_d()

int snd_max_d

(

void

)

Definition at line 92 of file unit.c.

References MKMASK, and SND_UNIT_ASSERT.

Referenced by snd_unit_init().

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snd_max_u()

int snd_max_u

(

void

)

Definition at line 84 of file unit.c.

References MKMASK, and SND_UNIT_ASSERT.

Referenced by snd_unit_init().

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snd_mkunit()

int snd_mkunit	(	int	u,
		int	d,
		int	c
	)

Definition at line 156 of file unit.c.

References c, MKMASK, snd_c_shift, snd_d_shift, and SND_UNIT_ASSERT.

Referenced by mixer_init(), and pcm_chn_create().

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snd_u2unit()

int snd_u2unit

(

int

u

)

Definition at line 132 of file unit.c.

References MKMASK, snd_c_shift, snd_d_shift, and SND_UNIT_ASSERT.

Referenced by dsp_clone().

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snd_unit2c()

int snd_unit2c

(

int

unit

)

Definition at line 124 of file unit.c.

References c, MKMASK, and SND_UNIT_ASSERT.

Referenced by dsp_unit2name(), and pcm_chnalloc().

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snd_unit2d()

int snd_unit2d

(

int

unit

)

Definition at line 116 of file unit.c.

References MKMASK, snd_c_shift, and SND_UNIT_ASSERT.

Referenced by dsp_unit2name(), and pcm_chnalloc().

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snd_unit2u()

int snd_unit2u

(

int

unit

)

Definition at line 108 of file unit.c.

References MKMASK, snd_c_shift, snd_d_shift, and SND_UNIT_ASSERT.

Referenced by dsp_unit2name().

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snd_unit_init()

void snd_unit_init

(

void

)

Definition at line 168 of file unit.c.

References SND_C_MASK, snd_c_shift, SND_D_MASK, snd_d_shift, snd_max_c(), snd_max_d(), snd_max_u(), SND_U_MASK, snd_u_shift, snd_unit_initialized, SND_UNIT_UMAX, and SND_UNIT_UMIN.

Referenced by dsp_sysinit(), and SLIST_HEAD().

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Variable Documentation

snd_c_shift

int snd_c_shift = 10

static

Definition at line 64 of file unit.c.

Referenced by snd_d2unit(), snd_mkunit(), snd_u2unit(), snd_unit2d(), snd_unit2u(), and snd_unit_init().

snd_d_shift

int snd_d_shift = 5

static

Definition at line 63 of file unit.c.

Referenced by snd_mkunit(), snd_u2unit(), snd_unit2u(), and snd_unit_init().

snd_u_shift

int snd_u_shift = 9

static

Definition at line 62 of file unit.c.

Referenced by snd_unit_init().

snd_unit_initialized

int snd_unit_initialized = 0

static

Definition at line 68 of file unit.c.

Referenced by snd_unit_init().