int audiohw_set_linein_vol(int vol_l, int vol_r)
{
MSG("audiohw_set_linein_vol\n");
wmcodec_write(LINV, LINV_LINVOL(vol_l)|LINV_LIVU);
wmcodec_write(RINV, RINV_RINVOL(vol_r)|RINV_RIVU);
return 0;
}
/* Reset and power up the WM8751 */
void audiohw_preinit(void)
{
int i;
/*
* 1. Switch on power supplies.
* By default the WM8751 is in Standby Mode, the DAC is
* digitally muted and the Audio Interface, Line outputs
* and Headphone outputs are all OFF (DACMU = 1 Power
* Management registers 1 and 2 are all zeros).
*/
//if(wmcodec_reg_data[RESET]!=0)
// return;
memset(wmcodec_reg_data, 0 , sizeof(unsigned long)*48);
wmcodec_write(RESET, RESET_RESET); /*Reset*/
//for(i = 0; i < 1000*HZ; i++);
sleep(1);
wmcodec_reg_data[RESET] = 0xFFFF;
/* 2. Enable Vmid and VREF. */
wmcodec_write(PWRMGMT1, PWRMGMT1_VREF | PWRMGMT1_VMIDSEL_50K );
}
void audiohw_set_MCLK(unsigned int bUsb)
{
if (bUsb)
wmcodec_write(CLOCKING, CLOCKING_SR_USB);
else
wmcodec_write(CLOCKING, 0);
}
/* Reset and power up the WM8751 */
void audiohw_preinit(void)
{
#ifdef MROBE_100
/* controls headphone ouput */
GPIOL_ENABLE |= 0x10;
GPIOL_OUTPUT_EN |= 0x10;
GPIOL_OUTPUT_VAL |= 0x10; /* disable */
#endif
/*
* 1. Switch on power supplies.
* By default the WM8751 is in Standby Mode, the DAC is
* digitally muted and the Audio Interface, Line outputs
* and Headphone outputs are all OFF (DACMU = 1 Power
* Management registers 1 and 2 are all zeros).
*/
wmcodec_write(RESET, RESET_RESET); /*Reset*/
/* 2. Enable Vmid and VREF. */
wmcodec_write(PWRMGMT1, PWRMGMT1_VREF | PWRMGMT1_VMIDSEL_5K);
#ifdef CODEC_SLAVE
wmcodec_write(AINTFCE,AINTFCE_WL_16|AINTFCE_FORMAT_I2S);
#else
/* BCLKINV=0(Dont invert BCLK) MS=1(Enable Master) LRSWAP=0 LRP=0 */
/* IWL=00(16 bit) FORMAT=10(I2S format) */
wmcodec_write(AINTFCE, AINTFCE_MS | AINTFCE_WL_16 |
AINTFCE_FORMAT_I2S);
#endif
/* Set default samplerate */
audiohw_set_frequency(HW_FREQ_DEFAULT);
}
void audiohw_set_master_vol(int vol_l, int vol_r)
{
/* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */
/* 1111111 == +6dB */
/* 1111001 == 0dB */
/* 0110000 == -73dB */
/* 0101111 == mute (0x2f) */
wmcodec_write(LOUT1, LOUT1_BITS | LOUT1_LOUT1VOL(vol_l));
wmcodec_write(ROUT1, ROUT1_BITS | ROUT1_ROUT1VOL(vol_r));
}
/* Nice shutdown of WM8751 codec */
void audiohw_close(void)
{
/* 1. Set DACMU = 1 to soft-mute the audio DACs. */
audiohw_mute(true);
/* 2. Disable all output buffers. */
wmcodec_write(PWRMGMT2, 0x0);
/* 3. Switch off the power supplies. */
wmcodec_write(PWRMGMT1, 0x0);
}
void audiohw_sel_input(int ain)
{
switch(ain)
{
case 1:
wmcodec_write(ADCLPATH, ADCLPATH_LINSEL_IN1);
wmcodec_write(ADCRPATH, ADCRPATH_RINSEL_IN1);
//wmcodec_write(ADCINMODE, ADCINMODE_RDCM_EN|ADCINMODE_LDCM_EN);
break;
case 2:
wmcodec_write(ADCLPATH, ADCLPATH_LINSEL_IN2);
wmcodec_write(ADCRPATH, ADCRPATH_RINSEL_IN2);
//wmcodec_write(ADCLPATH, ADCLPATH_LINSEL_DS);
//wmcodec_write(ADCRPATH, ADCRPATH_RINSEL_DS);
//wmcodec_write(ADCINMODE, ADCINMODE_DS_IN2|ADCINMODE_RDCM_EN|ADCINMODE_LDCM_EN);
break;
case 3:
wmcodec_write(ADCLPATH, ADCLPATH_LINSEL_IN3);
wmcodec_write(ADCRPATH, ADCRPATH_RINSEL_IN3);
break;
default:
wmcodec_write(ADCLPATH, ADCLPATH_LINSEL_IN1);
wmcodec_write(ADCRPATH, ADCRPATH_RINSEL_IN1);
break;
}
return;
}
int audiohw_set_master_vol(int vol_l, int vol_r)
{
/* +6 to -73dB 1dB steps (plus mute == 80levels) 7bits */
/* 1111111 == +6dB */
/* 1111001 == 0dB */
/* 0110000 == -73dB */
/* 0101111 == mute (0x2f) */
//wmcodec_write(LOUT1, LOUT1_BITS | LOUT1_LOUT1VOL(vol_l));
//wmcodec_write(ROUT1, ROUT1_BITS | ROUT1_ROUT1VOL(vol_r));
wmcodec_write(LEFTGAIN, LEFTGAIN_LDVU | LEFTGAIN_LDACVOL(vol_l));
wmcodec_write(RIGHTGAIN, RIGHTGAIN_LDVU | RIGHTGAIN_LDACVOL(vol_r));
return 0;
}
/* Reset and power up the WM8751 */
void audiohw_preinit()
{
/*
* 1. Switch on power supplies.
* By default the WM8751 is in Standby Mode, the DAC is
* digitally muted and the Audio Interface, Line outputs
* and Headphone outputs are all OFF (DACMU = 1 Power
* Management registers 1 and 2 are all zeros).
*/
wmcodec_write(RESET, RESET_RESET); /*Reset */
/* 2. Enable Vmid and VREF. */
wmcodec_write(PWRMGMT1, PWRMGMT1_VREF | PWRMGMT1_VMIDSEL_5K);
}
/* Nice shutdown of WM8751 codec */
void audiohw_close(void)
{
/* 1. Set DACMU = 1 to soft-mute the audio DACs. */
audiohw_mute(true);
wmcodec_write(LADCVOL, 0);
wmcodec_write(RADCVOL, 0);
/* 2. Disable all output buffers. */
wmcodec_write(PWRMGMT2, 0x0);
/* 3. Switch off the power supplies. */
wmcodec_write(PWRMGMT1, 0x0);
memset(wmcodec_reg_data, 0 , sizeof(unsigned long)*48);
}
void audiohw_preinit(void)
{
/* POWER UP SEQUENCE */
/* 1) Switch on power supplies. By default the WM codec is in Standby Mode,
* the DAC is digitally muted and the Audio Interface and Outputs are
* all OFF. */
wmcodec_write(RESET, RESET_RESET);
/* 2) Set all required bits in the Power Down register (0Ch) to '0';
* EXCEPT the OUTPD bit, this should be set to '1' (Default). */
wmc_clear(PDCTRL, PDCTRL_DACPD | PDCTRL_POWEROFF);
/* 3) Set required values in all other registers except 12h (Active). */
wmc_set(AINTFCE, 0); /* Set no bits - write init/shadow value */
wmc_set(AAPCTRL, AAPCTRL_DACSEL);
wmc_write(SAMPCTRL, WMC_USB24_44100HZ);
/* 4) Set the 'Active' bit in register 12h. */
codec_set_active(true);
/* 5) The last write of the sequence should be setting OUTPD to '0'
* (active) in register 0Ch, enabling the DAC signal path, free
* of any significant power-up noise. */
wmc_clear(PDCTRL, PDCTRL_OUTPD);
}
static void wm8975_write(int reg, unsigned val)
{
if (WM8975_NUM_REGISTERS > reg) {
wm8975_regs[reg] = val;
wmcodec_write(reg, val);
}
}
/* Note: Disable output before calling this function */
void audiohw_set_frequency(int fsel)
{
MSG("audiohw_set_frequency=0x%08X\n",fsel);
//fsel |= 0x0180; // BCLK = MCLK/16
//fsel |= 0x0080;
//fsel &= 0xFFFFFFFE;
wmcodec_write(CLOCKING, fsel);
}
static void wmc_write(int reg, unsigned val)
{
if ((unsigned)reg >= WMC_NUM_REGS)
return;
wmc_regs[reg] = (unsigned char)val;
wmcodec_write(reg, val);
}
void audiohw_set_bass(int value)
{
wmcodec_write(BASSCTRL, BASSCTRL_BITS |
#ifdef USE_ADAPTIVE_BASS
BASSCTRL_BASS(adaptivebass2hw(value)));
#else
BASSCTRL_BASS(tone_tenthdb2hw(value)));
#endif
}
static void wmcodec_set_reg(unsigned int reg, unsigned int val)
{
if (reg >= WM_NUM_REGS || (wmcodec_regs[reg] & 0x200))
/* invalid register */
return;
wmcodec_regs[reg] = val & 0x1ff;
wmcodec_write(reg, wmcodec_regs[reg]);
}
int audiohw_set_lineout_vol(int Aout, int vol_l, int vol_r)
{
MSG("audiohw_set_lineout_vol\n");
switch(Aout)
{
case 1:
wmcodec_write(LOUT1, LOUT1_BITS | LOUT1_LOUT1VOL(vol_l));
wmcodec_write(ROUT1, ROUT1_BITS | ROUT1_ROUT1VOL(vol_r));
break;
case 2:
wmcodec_write(LOUT2, LOUT2_BITS | LOUT2_LOUT2VOL(vol_l));
wmcodec_write(ROUT2, ROUT2_BITS | ROUT2_ROUT2VOL(vol_r));
break;
case 3:
wmcodec_write(MONOOUT, MONOOUT_MOZC | MONOOUT_MONOOUTVOL(vol_l));
break;
}
return 0;
}
static void wmc_write(unsigned int reg, unsigned int val)
{
if (reg >= WMC_NUM_REGISTERS || (wmc_regs[reg] & 0x8000))
{
logf("wm8978 invalid register: %d", reg);
return;
}
wmc_regs[reg] = val & ~0x8000;
wmcodec_write(reg, val);
}
/* Enable DACs and audio output after a short delay */
void audiohw_postinit(int bSlave, int Aout)
{
int i;
/* From app notes: allow Vref to stabilize to reduce clicks */
for(i = 0; i < 1000*HZ; i++);
/* 3. Enable DACs as required. */
wmcodec_write(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR);
/* 4. Enable line and / or headphone output buffers as required. */
wmcodec_write(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR |
PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1 | PWRMGMT2_LOUT2 |
PWRMGMT2_ROUT2);
wmcodec_write(ADDITIONAL1, ADDITIONAL1_TSDEN | ADDITIONAL1_TOEN |
ADDITIONAL1_DMONOMIX_LLRR | ADDITIONAL1_VSEL_DEFAULT);
wmcodec_write(ADDITIONAL2, 0x08);
wmcodec_write(LEFTMIX1, LEFTMIX1_LD2LO | LEFTMIX1_LI2LO_DEFAULT);
wmcodec_write(RIGHTMIX2, RIGHTMIX2_RD2RO | RIGHTMIX2_RI2RO_DEFAULT);
/* BCLKINV=0(Dont invert BCLK) MS=1(Enable Master) LRSWAP=0 LRP=0 */
/* IWL=00(16 bit) FORMAT=10(I2S format) */
if(bSlave)
{
MSG("WM8751 slave.....\n");
wmcodec_write(AINTFCE, AINTFCE_WL_16 | AINTFCE_FORMAT_I2S);
}
else
{
MSG("WM8751 master.....\n");
/* AINTFCE_BCLKINV on or off depend on trying result */
wmcodec_write(AINTFCE, AINTFCE_MS | AINTFCE_WL_16 | AINTFCE_FORMAT_I2S);
}
audiohw_mute(false);
}
void audiohw_preinit(void)
{
/* 1. Turn on external power supplies. Wait for supply voltage to settle. */
/* Step 1 should be completed already. Reset and return all registers to
* defaults */
wmcodec_write(WMC_SOFTWARE_RESET, 0xff);
sleep(HZ/10);
/* 2. Mute all analogue outputs */
wmc_set(WMC_LOUT1_HP_VOLUME_CTRL, WMC_MUTE);
wmc_set(WMC_ROUT1_HP_VOLUME_CTRL, WMC_MUTE);
wmc_set(WMC_LOUT2_SPK_VOLUME_CTRL, WMC_MUTE);
wmc_set(WMC_ROUT2_SPK_VOLUME_CTRL, WMC_MUTE);
wmc_set(WMC_OUT3_MIXER_CTRL, WMC_MUTE);
wmc_set(WMC_OUT4_MONO_MIXER_CTRL, WMC_MUTE);
/* 3. Set L/RMIXEN = 1 and DACENL/R = 1 in register R3. */
wmc_write(WMC_POWER_MANAGEMENT3, WMC_RMIXEN | WMC_LMIXEN);
/* EQ and 3D applied to DAC (Set before DAC enable!) */
wmc_set(WMC_EQ1_LOW_SHELF, WMC_EQ3DMODE);
wmc_set(WMC_POWER_MANAGEMENT3, WMC_DACENR | WMC_DACENL);
/* 4. Set BUFIOEN = 1 and VMIDSEL[1:0] to required value in register
* R1. Wait for VMID supply to settle */
wmc_write(WMC_POWER_MANAGEMENT1, WMC_BUFIOEN | WMC_VMIDSEL_300K);
sleep(HZ/10);
/* 5. Set BIASEN = 1 in register R1. */
wmc_set(WMC_POWER_MANAGEMENT1, WMC_BIASEN);
/* 6. Set L/ROUTEN = 1 in register R2. */
wmc_write(WMC_POWER_MANAGEMENT2, WMC_LOUT1EN | WMC_ROUT1EN);
}
/* Enable DACs and audio output after a short delay */
void audiohw_postinit(int bSlave, int AIn, int AOut)
{
int i;
unsigned long data;
if(wmcodec_reg_data[RESET]!=0xFFFF)
return;
/* BCLKINV=0(Dont invert BCLK) MS=1(Enable Master) LRSWAP=0 LRP=0 */
/* IWL=00(16 bit) FORMAT=10(I2S format) */
if(bSlave)
{
MSG("WM8750 slave.....\n");
wmcodec_write(AINTFCE, AINTFCE_WL_16 | AINTFCE_FORMAT_I2S);
}
else
{
MSG("WM8750 master.....\n");
/* AINTFCE_BCLKINV on or off depend on trying result */
wmcodec_write(AINTFCE, AINTFCE_MS | AINTFCE_WL_16 | AINTFCE_FORMAT_I2S);
}
wmcodec_reg_data[RESET] = 0x5A5A;
/* From app notes: allow Vref to stabilize to reduce clicks */
for(i = 0; i < 1000*HZ; i++);
data = wmcodec_reg_data[PWRMGMT1];
if(AIn > 0)
wmcodec_write(PWRMGMT1, data | PWRMGMT1_ADCL | PWRMGMT1_ADCR | PWRMGMT1_AINL | PWRMGMT1_AINR |PWRMGMT1_MICB);
//wmcodec_write(PWRMGMT1, PWRMGMT1_VREF | PWRMGMT1_VMIDSEL_50K | PWRMGMT1_ADCL | PWRMGMT1_ADCR | PWRMGMT1_AINL | PWRMGMT1_AINR );
/* 3. Enable DACs as required. */
if(AOut > 0)
{
data = PWRMGMT2_DACL | PWRMGMT2_DACR;
switch(AOut)
{
case 1:
data |= PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1;
break;
case 2:
data |= PWRMGMT2_LOUT2 | PWRMGMT2_ROUT2;
break;
case 3:
data |= PWRMGMT2_OUT3;
break;
default:
break;
}
wmcodec_write(PWRMGMT2, data);
}
else
{
wmcodec_write(PWRMGMT2, 0);
}
/* 4. Enable line and / or headphone output buffers as required. */
wmcodec_write(ADDITIONAL1, ADDITIONAL1_TOEN | ADDITIONAL1_DMONOMIX_LLRR | ADDITIONAL1_VSEL_DEFAULT);
if(AOut==2)
{
wmcodec_write(ADDITIONAL2, ADDITIONAL2_HPSWEN|ADDITIONAL2_HPSWPOL);
}
else
{
wmcodec_write(ADDITIONAL2, ADDITIONAL2_LRCM_ON);
}
wmcodec_write(ADDITIONAL3, ADDITIONAL3_ADCLRM(0));
wmcodec_write(RIGHTMIX1, 0);
wmcodec_write(LEFTMIX2, 0);
if(AOut > 0)
{
wmcodec_write(LEFTMIX1, LEFTMIX1_LD2LO);
wmcodec_write(RIGHTMIX2, RIGHTMIX2_RD2RO);
wmcodec_write(LOUT1, 0x179);
wmcodec_write(ROUT1, 0x179);
wmcodec_write(LEFTGAIN, 0x1FF);
wmcodec_write(RIGHTGAIN, 0x1FF);
}
else
{
wmcodec_write(LEFTMIX1, 0);
wmcodec_write(RIGHTMIX2, 0);
wmcodec_write(LOUT1, 0);
wmcodec_write(ROUT1, 0);
}
wmcodec_write(MONOMIX1, 0);
wmcodec_write(MONOMIX2, 0);
wmcodec_write(ADCCTRL, ADCCTRL_ADCHPD);
if(AIn>0)
{
//wmcodec_write(LINV, LINV_LINVOL(0x00)|LINV_LIVU);
//wmcodec_write(RINV, RINV_RINVOL(0x00)|RINV_RIVU);
//wmcodec_write(LINV, 0x117);
//wmcodec_write(RINV, 0x117);
wmcodec_write(LINV, 0x100);
wmcodec_write(RINV, 0x100);
wmcodec_write(ALC1, 0);
wmcodec_write(NOISEGATE, 0x03);
//wmcodec_write(ALC1, ALC1_ALCL(0x01)|ALC1_SET_MAXGAIN(0x1)|ALC1_ALCSTEREO);
//wmcodec_write(NOISEGATE, NOISEGATE_SET_NGTH(0x1F)|NOISEGATE_SET_NGG(0x01)|NOISEGATE_NGAT_ENABLE);
audiohw_sel_input(AIn);
}
else
{
wmcodec_write(LINV, LINV_LINMUTE);
wmcodec_write(RINV, RINV_RINMUTE);
}
//wmcodec_write(LEFTGAIN, 0x1FF);
//wmcodec_write(RIGHTGAIN, 0x1FF);
if(AOut > 0)
audiohw_mute(false);
else
audiohw_mute(true);
}
/* Note: Disable output before calling this function */
void audiohw_set_frequency(int fsel)
{
wmcodec_write(CLOCKING, fsel);
}
void audiohw_mute(bool mute)
{
/* Mute: Set DACMU = 1 to soft-mute the audio DACs. */
/* Unmute: Set DACMU = 0 to soft-un-mute the audio DACs. */
wmcodec_write(DACCTRL, mute ? DACCTRL_DACMU : 0);
}
void audiohw_set_treble(int value)
{
wmcodec_write(TREBCTRL, TREBCTRL_BITS |
TREBCTRL_TREB(tone_tenthdb2hw(value)));
}
int audiohw_set_lineout_vol(int vol_l, int vol_r)
{
wmcodec_write(LOUT2, LOUT2_BITS | LOUT2_LOUT2VOL(vol_l));
wmcodec_write(ROUT2, ROUT2_BITS | ROUT2_ROUT2VOL(vol_r));
return 0;
}
void audiohw_loopback(int fsel)
{
int i;
memset(wmcodec_reg_data, 0 , sizeof(unsigned long)*48);
wmcodec_write(RESET, 0x000); /*Reset*/
for(i = 0; i < 1000*HZ; i++);
//wmcodec_write(ADDITIONAL2, 0x0010);
//wmcodec_write(PWRMGMT1, 0x0FC );
wmcodec_write(AINTFCE, AINTFCE_WL_16|AINTFCE_FORMAT_I2S|AINTFCE_MS);
wmcodec_write(LINV, 0x117);
wmcodec_write(RINV, 0x117);
wmcodec_write(LOUT1, 0x179);
wmcodec_write(ROUT1, 0x179);
wmcodec_write(ADCCTRL, 0);
wmcodec_write(CLOCKING, fsel);
wmcodec_write(LEFTGAIN, 0x01FF);
wmcodec_write(RIGHTGAIN, 0x01FF);
wmcodec_write(PWRMGMT1, 0x0FC );
wmcodec_write(PWRMGMT2, 0x1E0 );
wmcodec_write(LEFTMIX1, 0x150 );
wmcodec_write(RIGHTMIX2, 0x150 );
}
/* Enable DACs and audio output after a short delay */
void audiohw_postinit(void)
{
/* From app notes: allow Vref to stabilize to reduce clicks */
sleep(HZ);
/* 3. Enable DACs as required. */
wmcodec_write(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR);
/* 4. Enable line and / or headphone output buffers as required. */
#if defined(MROBE_100) || defined(MPIO_HD200)
wmcodec_write(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR |
PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1);
#else
wmcodec_write(PWRMGMT2, PWRMGMT2_DACL | PWRMGMT2_DACR |
PWRMGMT2_LOUT1 | PWRMGMT2_ROUT1 | PWRMGMT2_LOUT2 |
PWRMGMT2_ROUT2);
#endif
wmcodec_write(ADDITIONAL1, ADDITIONAL1_TSDEN | ADDITIONAL1_TOEN |
ADDITIONAL1_DMONOMIX_LLRR | ADDITIONAL1_VSEL_DEFAULT);
wmcodec_write(LEFTMIX1, LEFTMIX1_LD2LO | LEFTMIX1_LI2LO_DEFAULT);
wmcodec_write(RIGHTMIX2, RIGHTMIX2_RD2RO | RIGHTMIX2_RI2RO_DEFAULT);
#ifdef TOSHIBA_GIGABEAT_F
#ifdef HAVE_HARDWARE_BEEP
/* Single-ended mono input */
wmcodec_write(MONOMIX1, 0);
/* Route mono input to both outputs at 0dB */
wmcodec_write(LEFTMIX2, LEFTMIX2_MI2LO | LEFTMIX2_MI2LOVOL(2));
wmcodec_write(RIGHTMIX1, RIGHTMIX1_MI2RO | RIGHTMIX1_MI2ROVOL(2));
#endif
#endif
#ifdef MPIO_HD200
/* Crude fix for high pitch noise at startup
* I should find out what realy causes this
*/
wmcodec_write(LOUT1, LOUT1_BITS|0x7f);
wmcodec_write(ROUT1, ROUT1_BITS|0x7f);
wmcodec_write(LOUT1, LOUT1_BITS);
wmcodec_write(ROUT1, ROUT1_BITS);
#endif
/* lower power consumption */
wmcodec_write(PWRMGMT1, PWRMGMT1_VREF | PWRMGMT1_VMIDSEL_50K);
audiohw_mute(false);
#ifdef MROBE_100
/* enable headphone output */
GPIOL_OUTPUT_VAL &= ~0x10;
GPIOL_OUTPUT_EN |= 0x10;
#endif
}
void audiohw_bypass(void)
{
int i;
memset(wmcodec_reg_data, 0 , sizeof(unsigned long)*48);
wmcodec_write(RESET, 0x000); /*Reset*/
for(i = 0; i < 1000*HZ; i++);
wmcodec_write(LINV, 0x117);
wmcodec_write(RINV, 0x117);
wmcodec_write(LOUT1, 0x179);
wmcodec_write(ROUT1, 0x179);
wmcodec_write(DACCTRL, 0);
wmcodec_write(AINTFCE, 0x42);
wmcodec_write(CLOCKING, 0x23);
wmcodec_write(LEFTGAIN, 0x1FF);
wmcodec_write(RIGHTGAIN, 0x1FF);
wmcodec_write(PWRMGMT1, 0x0F0);
wmcodec_write(PWRMGMT2, 0x060);
wmcodec_write(LEFTMIX1, 0xA0 );
wmcodec_write(RIGHTMIX2, 0xA0 );
}