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This is the UDA1380 sound coder-decoder module

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Bogdan Diaconescu 2005-04-17 22:58:03 +00:00
commit 7f74e3aebd
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hw/xfree86/i2c/uda1380.c Normal file
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/*************************************************************************************
* $Id$
*
* Created by Bogdan D. bogdand@users.sourceforge.net
* License: GPL
*
* $Log$
* Revision 1.1 2005/04/17 22:58:03 bogdand
* This is the UDA1380 sound coder-decoder module
*
*
************************************************************************************/
#include "xf86.h"
#include "xf86i2c.h"
#include "uda1380.h"
#include "i2c_def.h"
UDA1380Ptr Detect_uda1380(I2CBusPtr b, I2CSlaveAddr addr)
{
UDA1380Ptr t;
I2CByte a;
t = xcalloc(1, sizeof(UDA1380Rec));
if(t == NULL) return NULL;
switch(addr)
{
case UDA1380_ADDR_1:
case UDA1380_ADDR_2:
t->d.DevName = "UDA1380 Stereo audion coder-decoder";
break;
default:
t->d.DevName = "Generic UDAxxxx";
break;
}
t->d.SlaveAddr = addr;
t->d.pI2CBus = b;
t->d.NextDev = NULL;
t->d.StartTimeout = b->StartTimeout;
t->d.BitTimeout = b->BitTimeout;
t->d.AcknTimeout = b->AcknTimeout;
t->d.ByteTimeout = b->ByteTimeout;
if(!I2C_WriteRead(&(t->d), NULL, 0, &a, 1))
{
xfree(t);
return NULL;
}
/* set default parameters */
if(!I2CDevInit(&(t->d)))
{
xfree(t);
return NULL;
}
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 stereo coder-decoder detected\n");
return t;
}
Bool uda1380_init(UDA1380Ptr t)
{
CARD8 data[3];
CARD16 tmp;
Bool ret;
/* Power control */
data[0] = 0x02;
tmp = (1 << 13) | (1 << 10) | ( 1 << 8) | (1 << 7) | (1 << 6) | (1 << 3) | (1 << 1);
data[1] = (CARD8)((tmp >> 8) & 0xff);
data[2] = (CARD8)(tmp & 0xff);
ret = I2C_WriteRead(&(t->d), data, 3, NULL, 0);
if (ret == FALSE)
{
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 failed to initialize\n");
return FALSE;
}
/* Analog mixer (AVC) */
data[0] = 0x03;
/* the analog mixer is muted initially */
data[1] = 0x3f;
data[2] = 0x3f;
ret = I2C_WriteRead(&(t->d), data, 3, NULL, 0);
if (ret == FALSE)
{
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 failed to initialize\n");
return FALSE;
}
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 initialized\n");
return TRUE;
}
void uda1380_shutdown(UDA1380Ptr t)
{
CARD8 data[3];
Bool ret;
/* Power control */
data[0] = 0x02;
data[1] = 0;
data[2] = 0;
ret = I2C_WriteRead(&(t->d), data, 3, NULL, 0);
if (ret == FALSE)
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 failed to shutdown\n");
}
void uda1380_setvolume(UDA1380Ptr t, INT32 value)
{
CARD8 data[3];
/*
* We have to scale the value ranging from -1000 to 1000 to 0x2c to 0
*/
CARD8 volume = 47 - (CARD8)((value + 1000) * 47 / 2000);
Bool ret;
t->analog_mixer_settings = ((volume << 8) & 0x3f00) | (volume & 0x3f);
/* Analog mixer (AVC) */
data[0] = 0x03;
data[1] = volume & 0x3f;
data[2] = volume & 0x3f;
ret = I2C_WriteRead(&(t->d), data, 3, NULL, 0);
if (ret == FALSE)
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 failed to set volume\n");
}
void uda1380_mute(UDA1380Ptr t, Bool mute)
{
CARD8 data[3];
Bool ret;
if (mute == TRUE)
{
/* Analog mixer (AVC) */
data[0] = 0x03;
data[1] = 0xff;
data[2] = 0xff;
ret = I2C_WriteRead(&(t->d), data, 3, NULL, 0);
if (ret == FALSE)
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 failed to mute\n");
}
else
{
/* Analog mixer (AVC) */
data[0] = 0x03;
data[1] = (CARD8)((t->analog_mixer_settings >> 8) & 0x3f);
data[2] = (CARD8)(t->analog_mixer_settings & 0x3f);
ret = I2C_WriteRead(&(t->d), data, 3, NULL, 0);
if (ret == FALSE)
xf86DrvMsg(t->d.pI2CBus->scrnIndex,X_INFO,"UDA1380 failed to unmute\n");
}
}
void uda1380_getstatus(UDA1380Ptr t)
{
}
void uda1380_setparameters(UDA1380Ptr t)
{
}
void uda1380_dumpstatus(UDA1380Ptr t)
{
}