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|
/*
* Purpose: Card specific routines for Terratec EWS88D.
*/
/*
*
* This file is part of Open Sound System.
*
* Copyright (C) 4Front Technologies 1996-2008.
*
* This this source file is released under GPL v2 license (no other versions).
* See the COPYING file included in the main directory of this source
* distribution for the license terms and conditions.
*
*/
#include "oss_config.h"
#include "ac97.h"
#include "envy24.h"
#if 0
# define PRT_STATUS(v) outb(v&0xff, 0x378)
#else
# define PRT_STATUS(v)
#endif
/* PCF8575 pin assignment (default 0xffff) */
#define PCF_SPDIN_SELECT 0x0001 /* 0=optical 1=coax */
#define PCF_OPTOUT 0x0002 /* 0=SPDIF 1=ADAT */
#define PCF_CLOCKSRC 0x0004 /* 0=ADAT 1=SPDIF */
#define PCF_ADATEN 0x0008 /* 0=ADAT disabled 1=ADAT enabled */
#define PCF_ADATLOOP_ 0x0010 /* 0=ADAT in->out loop, 1=no loop */
#define PCF_CS8414_ERF_ 0x0020 /* Inverted CS8414 ERF */
#define PCF_SPDIF_ERR 0x0040 /* OR'ed from CS8414 E0..E2 */
#define PCF_ADAT_ERROR 0x0080 /* ADAT error input */
extern int envy24_gain_sliders;
extern int envy24_virtualout;
extern int envy24_zerolatency; /* Testing in progress */
/*
* Terratec stuff
*/
/*=============================================================================
Function : IIC_GetSDA
-------------------------------------------------------------------------------
Description :
Returns : unsigned char ->
Parameters : unsigned long dwPortAddr ->
-------------------------------------------------------------------------------
Notes :
=============================================================================*/
static __inline__ unsigned char
IIC_GetSDA (envy24_devc * devc, unsigned long dwPortAddr)
{
unsigned char bReg, bSDA;
/* FMB TEST: RW line */
/* set write mask */
bReg = ~(0x08); /* writeable */
envy24_write_cci (devc, 0x21, bReg);
/* set RW line LOW */
bReg = 0; /* writeable */
envy24_write_cci (devc, 0x20, bReg);
/* Set direction: SDA to input and SCL to output */
bReg = envy24_read_cci (devc, 0x22);
bReg |= 0x20; /* SCL output = 1 */
bReg &= ~0x10; /* SDA input = 0 */
envy24_write_cci (devc, 0x22, bReg);
/* Get SDA line state */
bSDA = envy24_read_cci (devc, 0x20);
/* set RW line HIGH */
bReg = 0x08; /* writeable */
envy24_write_cci (devc, 0x20, bReg);
return 1;
/* return ((bSDA & 0x10) == 0x10); */
}
/*=============================================================================
Function : IIC_SetIic
-------------------------------------------------------------------------------
Description :
Returns : void ->
Parameters : unsigned int dwPortAddr ->
: unsigned char fSDA ->
: unsigned char fSCL ->
-------------------------------------------------------------------------------
Notes :
=============================================================================*/
static __inline__ void
IIC_SetIic (envy24_devc * devc, unsigned int dwPortAddr, unsigned char fSDA,
unsigned char fSCL)
{
unsigned char bReg;
/* Set direction: SDA and SCL to output */
bReg = envy24_read_cci (devc, 0x22);
bReg |= (0x20 | 0x10); /* 1 -> output */
envy24_write_cci (devc, 0x22, bReg);
/* set write mask */
bReg = ~(0x20 | 0x10); /* writeable */
envy24_write_cci (devc, 0x21, bReg);
/* Set line state */
/* FMB TEST: RW line */
bReg = 0x08;
/* bReg = 0; */
if (fSDA)
bReg += 0x10;
if (fSCL)
bReg += 0x20;
envy24_write_cci (devc, 0x20, bReg);
}
/*=============================================================================
Function : IIC_Start
-------------------------------------------------------------------------------
Description :
Returns : void ->
Parameters : unsigned int dwPortAddr ->
-------------------------------------------------------------------------------
Notes :
=============================================================================*/
static __inline__ void
IIC_Start (envy24_devc * devc, unsigned int dwPortAddr)
{
/* falling edge of SDA while SCL is HIGH */
IIC_SetIic (devc, dwPortAddr, 1, 1);
IIC_SetIic (devc, dwPortAddr, 0, 1);
}
/*=============================================================================
Function : IIC_Stop
-------------------------------------------------------------------------------
Description :
Returns : void ->
Parameters : unsigned int dwPortAddr ->
-------------------------------------------------------------------------------
Notes :
=============================================================================*/
static __inline__ void
IIC_Stop (envy24_devc * devc, unsigned int dwPortAddr)
{
/* rising edge of SDA while SCL is HIGH */
IIC_SetIic (devc, dwPortAddr, 0, 1);
IIC_SetIic (devc, dwPortAddr, 1, 1);
}
/*=============================================================================
Function : IIC_SendByte
-------------------------------------------------------------------------------
Description :
Returns : unsigned char ->
Parameters : unsigned int dwPortAddr ->
: unsigned char bByte ->
-------------------------------------------------------------------------------
Notes :
=============================================================================*/
/*__inline */
static unsigned char
IIC_SendByte (envy24_devc * devc, unsigned int dwPortAddr,
unsigned char bByte)
{
unsigned char bDataBit, bAck;
int i;
for (i = 7; i >= 0; i--) /* send byte (MSB first) */
{
bDataBit = (bByte >> i) & 0x01;
IIC_SetIic (devc, dwPortAddr, bDataBit, 0);
IIC_SetIic (devc, dwPortAddr, bDataBit, 1);
} /* end for i */
IIC_SetIic (devc, dwPortAddr, 1, 0);
/* Get acknowledge */
IIC_SetIic (devc, dwPortAddr, 1, 1);
bAck = IIC_GetSDA (devc, dwPortAddr);
/* FMB this is a start condition but never mind */
IIC_SetIic (devc, dwPortAddr, 0, 0);
return 1;
/* return (!bAck); *//* bAck = 0 --> success */
}
static unsigned char
IIC_WriteWord (envy24_devc * devc, int dwPortAddr, unsigned char bIicAddress,
unsigned short bByte)
{
IIC_Start (devc, dwPortAddr);
/* send IIC address and data byte */
if (!IIC_SendByte (devc, dwPortAddr, bIicAddress))
{
cmn_err (CE_CONT, "IIC_SendByte 1 failed\n");
goto FAILED;
}
if (!IIC_SendByte (devc, dwPortAddr, bByte & 0xff))
{
cmn_err (CE_CONT, "IIC_SendByte 3 failed\n");
goto FAILED;
}
if (!IIC_SendByte (devc, dwPortAddr, (bByte >> 8) & 0xff))
{
cmn_err (CE_CONT, "IIC_SendByte 2 failed\n");
goto FAILED;
}
IIC_Stop (devc, dwPortAddr);
return 1;
FAILED:
IIC_Stop (devc, dwPortAddr);
return 0;
}
static void
ews88d_set_pcf8575 (envy24_devc * devc, unsigned short d)
{
if (!IIC_WriteWord (devc, devc->ccs_base, 0x40, d))
{
cmn_err (CE_CONT, "IIC_WriteWord failed\n");
}
devc->gpio_tmp = d;
}
static void
ews88d_card_init (envy24_devc * devc)
{
ews88d_set_pcf8575 (devc, 0xffff);
}
static void
set_ews88d_speed (envy24_devc * devc)
{
int tmp;
tmp = devc->speedbits;
switch (devc->syncsource)
{
case SYNC_INTERNAL:
OUTB (devc->osdev, tmp, devc->mt_base + 0x01);
break;
case SYNC_SPDIF:
tmp |= 0x10;
OUTB (devc->osdev, tmp, devc->mt_base + 0x01);
devc->gpio_tmp &= ~PCF_CLOCKSRC;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
break;
case SYNC_WCLOCK:
tmp |= 0x10;
OUTB (devc->osdev, tmp, devc->mt_base + 0x01);
devc->gpio_tmp |= PCF_CLOCKSRC;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
break;
}
if (devc->speed > 48000)
{
devc->gpio_tmp &= ~PCF_ADATEN;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
}
else
{
devc->gpio_tmp |= PCF_ADATEN;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
}
}
static int
ews88d_mixer_set (int dev, int ctrl, unsigned int cmd, int value)
{
envy24_devc *devc = mixer_devs[dev]->devc;
if (cmd == SNDCTL_MIX_READ)
switch (ctrl)
{
case 1:
return !!(devc->gpio_tmp & PCF_SPDIN_SELECT);
break;
case 2:
return !!(devc->gpio_tmp & PCF_OPTOUT);
break;
case 3:
return !(devc->gpio_tmp & PCF_ADATLOOP_);
break;
}
if (cmd == SNDCTL_MIX_WRITE)
switch (ctrl)
{
case 1:
devc->gpio_tmp &= ~PCF_SPDIN_SELECT;
if (value)
devc->gpio_tmp |= PCF_SPDIN_SELECT;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
return !!(devc->gpio_tmp & PCF_SPDIN_SELECT);
break;
case 2:
devc->gpio_tmp &= ~PCF_OPTOUT;
if (value)
devc->gpio_tmp |= PCF_OPTOUT;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
return !!(devc->gpio_tmp & PCF_OPTOUT);
break;
case 3:
devc->gpio_tmp &= ~PCF_ADATLOOP_;
if (!value)
devc->gpio_tmp |= PCF_ADATLOOP_;
ews88d_set_pcf8575 (devc, devc->gpio_tmp);
return !(devc->gpio_tmp & PCF_ADATLOOP_);
break;
}
return OSS_EINVAL;
}
static int
ews88d_mix_init (envy24_devc * devc, int dev, int group)
{
int err;
if ((group = mixer_ext_create_group (dev, 0, "ENVY24_EWS88D")) < 0)
return group;
if ((err = mixer_ext_create_control (dev, group,
1, ews88d_mixer_set,
MIXT_ENUM,
"EWS88D_SPDIN", 2,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((err = mixer_ext_create_control (dev, group,
2, ews88d_mixer_set,
MIXT_ENUM,
"EWS88D_OPTOUT", 2,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
if ((err = mixer_ext_create_control (dev, group,
3, ews88d_mixer_set,
MIXT_ONOFF,
"EWS88D_ADATLOOP", 2,
MIXF_READABLE | MIXF_WRITEABLE)) < 0)
return err;
return 0;
}
envy24_auxdrv_t ews88d_auxdrv = {
ews88d_card_init,
ews88d_mix_init,
NULL,
NULL,
NULL,
NULL,
NULL,
set_ews88d_speed,
NULL,
cs8427_spdif_mixer_init
};
|
