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/*
* Copyright (c) 2001 Katsurajima Naoto <raven@katsurajima.seya.yokohama.jp>
* 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, WHETHERIN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THEPOSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <dev/sound/pcm/sound.h>
#include <dev/sound/pci/ak452x.h>
MALLOC_DEFINE(M_AK452X, "ak452x", "ak452x codec");
#define AK452X_NAMELEN 16
struct ak452x_info {
device_t dev;
ak452x_ctrl ctrl;
void *devinfo;
int num; /* number of this device */
unsigned int type; /* codec type */
unsigned int cif; /* Controll data Interface Format (0/1) */
unsigned int format; /* data format and master clock frequency */
unsigned int dvc; /* De-emphasis and Volume Control */
unsigned int left, right;
char name[AK452X_NAMELEN];
void *lock;
};
static void
ak452x_wrbit(struct ak452x_info *codec, int bit)
{
unsigned int cs, cdti;
if (codec->cif)
cs = 1;
else
cs = 0;
if (bit)
cdti = 1;
else
cdti = 0;
codec->ctrl(codec->devinfo, cs, 0, cdti);
DELAY(1);
codec->ctrl(codec->devinfo, cs, 1, cdti);
DELAY(1);
return;
}
static void
ak452x_wrcd(struct ak452x_info *codec, int reg, u_int8_t val)
{
int mask;
#if(0)
device_printf(codec->dev, "ak452x_wrcd(codec, 0x%02x, 0x%02x)\n", reg, val);
#endif
/* start */
if (codec->cif)
codec->ctrl(codec->devinfo, 1, 1, 0);
else
codec->ctrl(codec->devinfo, 0, 1, 0);
DELAY(1);
/* chip address */
ak452x_wrbit(codec, 1);
ak452x_wrbit(codec, 0);
/* write */
ak452x_wrbit(codec, 1);
/* register address */
for (mask = 0x10; mask != 0; mask >>= 1)
ak452x_wrbit(codec, reg & mask);
/* data */
for (mask = 0x80; mask != 0; mask >>= 1)
ak452x_wrbit(codec, val & mask);
/* stop */
DELAY(1);
if (codec->cif) {
codec->ctrl(codec->devinfo, 0, 1, 0);
DELAY(1);
codec->ctrl(codec->devinfo, 1, 1, 0);
}
else {
codec->ctrl(codec->devinfo, 1, 1, 0);
}
return;
}
struct ak452x_info *
ak452x_create(device_t dev, void *devinfo, int num, ak452x_ctrl ctrl)
{
struct ak452x_info *codec;
#if(0)
device_printf(dev, "ak452x_create(dev, devinfo, %d, ctrl)\n", num);
#endif
codec = (struct ak452x_info *)malloc(sizeof *codec, M_AK452X, M_NOWAIT);
if (codec == NULL)
return NULL;
snprintf(codec->name, AK452X_NAMELEN, "%s:ak452x%d", device_get_nameunit(dev), num);
codec->lock = snd_mtxcreate(codec->name, codec->name);
codec->dev = dev;
codec->ctrl = ctrl;
codec->devinfo = devinfo;
codec->num = num;
codec->type = AK452X_TYPE_4524;
codec->cif = 0;
codec->format = AK452X_FORMAT_I2S | AK452X_FORMAT_256FSN | AK452X_FORMAT_1X;
codec->dvc = AK452X_DVC_DEMOFF | AK452X_DVC_ZTM1024 | AK452X_DVC_ZCE;
return codec;
}
void
ak452x_destroy(struct ak452x_info *codec)
{
snd_mtxfree(codec->lock);
free(codec, M_AK452X);
}
void
ak452x_settype(struct ak452x_info *codec, unsigned int type)
{
snd_mtxlock(codec->lock);
codec->type = type;
snd_mtxunlock(codec->lock);
}
void
ak452x_setcif(struct ak452x_info *codec, unsigned int cif)
{
snd_mtxlock(codec->lock);
codec->cif = cif;
snd_mtxunlock(codec->lock);
}
void
ak452x_setformat(struct ak452x_info *codec, unsigned int format)
{
snd_mtxlock(codec->lock);
codec->format = format;
snd_mtxunlock(codec->lock);
}
void
ak452x_setdvc(struct ak452x_info *codec, unsigned int dvc)
{
snd_mtxlock(codec->lock);
codec->dvc = dvc;
snd_mtxunlock(codec->lock);
}
void
ak452x_init(struct ak452x_info *codec)
{
#if(0)
device_printf(codec->dev, "ak452x_init(codec)\n");
#endif
snd_mtxlock(codec->lock);
/* power off */
ak452x_wrcd(codec, AK4524_POWER, 0);
/* set parameter */
ak452x_wrcd(codec, AK4524_FORMAT, codec->format);
ak452x_wrcd(codec, AK4524_DVC, codec->dvc);
/* power on */
ak452x_wrcd(codec, AK4524_POWER, AK452X_POWER_PWDA | AK452X_POWER_PWAD | AK452X_POWER_PWVR);
/* free reset register */
ak452x_wrcd(codec, AK4524_RESET, AK452X_RESET_RSDA | AK452X_RESET_RSAD);
snd_mtxunlock(codec->lock);
}
void
ak452x_reinit(struct ak452x_info *codec)
{
snd_mtxlock(codec->lock);
/* reset */
ak452x_wrcd(codec, AK4524_RESET, 0);
/* set parameter */
ak452x_wrcd(codec, AK4524_FORMAT, codec->format);
ak452x_wrcd(codec, AK4524_DVC, codec->dvc);
/* free reset register */
ak452x_wrcd(codec, AK4524_RESET, AK452X_RESET_RSDA | AK452X_RESET_RSAD);
snd_mtxunlock(codec->lock);
}
void
ak452x_set(struct ak452x_info *codec, int dir, unsigned int left, unsigned int right)
{
#if(0)
device_printf(codec->dev, "ak452x_set(codec, %d, %d, %d)\n", dir, left, right);
#endif
snd_mtxlock(codec->lock);
if (left >= 100)
left = 127;
else
left = left * 127 / 100;
if (right >= 100)
right = 127;
else
right = right * 127 / 100;
if (dir == PCMDIR_REC && codec->type == AK452X_TYPE_4524) {
#if(0)
device_printf(codec->dev, "ak452x_set(): AK4524(REC) %d/%d\n", left, right);
#endif
ak452x_wrcd(codec, AK4524_LIPGA, left);
ak452x_wrcd(codec, AK4524_RIPGA, right);
}
if (dir == PCMDIR_PLAY && codec->type == AK452X_TYPE_4524) {
#if(0)
device_printf(codec->dev, "ak452x_set(): AK4524(PLAY) %d/%d\n", left, right);
#endif
ak452x_wrcd(codec, AK4524_LOATT, left);
ak452x_wrcd(codec, AK4524_ROATT, right);
}
if (dir == PCMDIR_PLAY && codec->type == AK452X_TYPE_4528) {
#if(0)
device_printf(codec->dev, "ak452x_set(): AK4528(PLAY) %d/%d\n", left, right);
#endif
ak452x_wrcd(codec, AK4528_LOATT, left);
ak452x_wrcd(codec, AK4528_ROATT, right);
}
snd_mtxunlock(codec->lock);
}
MODULE_DEPEND(snd_ak452x, sound, SOUND_MINVER, SOUND_PREFVER, SOUND_MAXVER);
MODULE_VERSION(snd_ak452x, 1);
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