wm8753audiopaths.c

WM9713 audio codec driver for WinCE 5.0

                         WM8753_LEFTADCSEL_LINE1,
                         WM8753_RIGHTADCSEL_MASK    |
                         WM8753_LEFTADCSEL_MASK
                    );
    if( WM_ERROR( status ) )
    {
        goto error;
    }

    /*
     * Enable LM Signal to Left Mixer.
     */
    status = WMSetField( hDevice, 
                         WM8753_LEFT_OUT_MIX_1, 
                         WM8753_MIX2OUT,
                         WM8753_MIX2OUT
                       );
    if( WM_ERROR( status ) )
    {
        goto error;
    }

    /*
     * Enable RM Signal to Right Mixer.
     */
    status = WMSetField( hDevice, 
                         WM8753_RIGHT_OUT_MIX_1, 
                         WM8753_MIX2OUT,
                         WM8753_MIX2OUT
                       );
    if( WM_ERROR( status ) )
    {
        goto error;
    }

    return WMS_SUCCESS;

error:
	return status;
}

/*-----------------------------------------------------------------------------
 * Function:    WM8753ClearLineInRecPaths
 *
 * Turns off Line In to ADC as the record path.
 *
 * Parameters:
 *      hDevice     handle to the device (from WMOpenDevice)
 *      lineInL     signal to record on left ADC channel.
 *      lineInR     signal to record on right ADC channel.
 *
 * Returns:     WMSTATUS
 *      See WMStatus.h
 *---------------------------------------------------------------------------*/
WMSTATUS WM8753ClearLineInRecPaths( WM_DEVICE_HANDLE hDevice,
	                                WM_AUDIO_SIGNAL   lineInL,
	                                WM_AUDIO_SIGNAL   lineInR
	                              )
{
    WMSTATUS status;

	/*
	 * Mute Left ADC Volume.
	 */
    status = WMWrite( hDevice, 
                      WM8753_LEFT_ADC_VOLUME, 
                      WM8753_ADCVOL_MUTE
                    );
    if( WM_ERROR( status ) )
    {
        goto error;
    }


	/*
	 * Mute Right ADC Volume.
	 */
    status = WMWrite( hDevice, 
                      WM8753_RIGHT_ADC_VOLUME, 
                      WM8753_VOLUME_UPDATE      |
                      WM8753_ADCVOL_MUTE
                    );
    if( WM_ERROR( status ) )
    {
        goto error;
    }

    /*
     * Disable LM Signal to Left Mixer.
     */
    status = WMClearField( hDevice, 
                           WM8753_LEFT_OUT_MIX_1, 
                           WM8753_MIX2OUT
                         );
    if( WM_ERROR( status ) )
    {
        goto error;
    }

    /*
     * Disable RM Signal to Reft Mixer.
     */
    status = WMClearField( hDevice, 
                           WM8753_RIGHT_OUT_MIX_1, 
                           WM8753_MIX2OUT
                         );
    if( WM_ERROR( status ) )
    {
        goto error;
    }

    return WMS_SUCCESS;

error:
	return status;
}

/*-----------------------------------------------------------------------------
 * Function:    WM8753SetMicRecPaths
 *
 * Set up MIC1 path to the ADC left and/or MIC2 to ADC right as the record path.
 *
 * Parameters:
 *      hDevice         handle to the device (from WMOpenDevice)
 *      micSignalL      left channel microphone input to use.
 *      micSignalR      right channel microphone input to use.
 *
 * Returns:     WMSTATUS
 *      See WMStatus.h
 *---------------------------------------------------------------------------*/
WMSTATUS WM8753SetMicRecPaths( WM_DEVICE_HANDLE  hDevice, 
							   WM_AUDIO_SIGNAL   micSignalL,
							   WM_AUDIO_SIGNAL   micSignalR
							 )
{
    WMSTATUS    status;
    WM_REGVAL   value;
    WM_REGVAL   mask;

    /*
     * This should be checked higher up.
     */
	WM_ASSERT( hDevice, !( WM_AUDIO_IGNORE == micSignalL && WM_AUDIO_IGNORE == micSignalR ) );

    /*
     * Set Left ADC Volume.
     */
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        value = WM8753_ADCVOL_0DB;
        if ( WM_AUDIO_IGNORE == micSignalR )
            value |= WM8753_VOLUME_UPDATE;
            
        status = WMWrite( hDevice, 
                          WM8753_LEFT_ADC_VOLUME, 
                          value
                        );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }

        /*
         * Select appropriate mics to ALC - left channel - and to sidetone.
         * Note MIC2 automatically goes to the right channel.
         */
        status = WMSetField( hDevice, 
                             WM8753_INPUT_CONTROL_2,
                             WM8753_MIC1ALC | WM8753_MICMUX_MIC1,
                             WM8753_MIC1ALC | WM8753_MIC2ALC | WM8753_MICMUX_MASK
                        );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }
    }

    /*
     * Set Right ADC Volume.
     */
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        status = WMWrite( hDevice, 
                          WM8753_RIGHT_ADC_VOLUME, 
                          WM8753_VOLUME_UPDATE      |
                          WM8753_ADCVOL_0DB
                        );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }

        if ( WM_AUDIO_IGNORE == micSignalL )
        {
            /*
             * No MIC1, so select MIC2 to sidetone.
             * Note MIC2 automatically goes to the right channel.
             */
            status = WMSetField( hDevice, 
                                 WM8753_INPUT_CONTROL_2,
                                 WM8753_MICMUX_MIC2,
                                 WM8753_MICMUX_MASK
                            );
            if ( WM_ERROR( status ) )
            {
                goto error;
            }
        }
    }
    
    /*
     * Set the ADC input mode to PGA.
     */
    value = mask = 0;
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        value |= WM8753_LEFTADCSEL_PGA;
        mask |= WM8753_LEFTADCSEL_MASK;
    }
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        value |= WM8753_RIGHTADCSEL_PGA;
        mask |= WM8753_RIGHTADCSEL_MASK;
    }
    status = WMSetField( hDevice, WM8753_ADC_INPUT_MODE, value, mask );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }

    /*
     * Make sure our MIC amps are enabled.
     */
    value = 0;
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        value |= WM8753_PWR2_MICAMP1EN;
    }
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        value |= WM8753_PWR2_MICAMP2EN;
    }
    status = WMSetField( hDevice, WM8753_PWR_MGMT_2, value, value );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    
    /*
     * Set 30dB mic boost.
     */
    value = mask = 0;
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        value |= WM8753_MIC1BOOST_30DB;
        mask |= WM8753_MIC1BOOST_MASK;
    }
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        value |= WM8753_MIC2BOOST_30DB;
        mask |= WM8753_MIC2BOOST_MASK;
    }
    status = WMSetField( hDevice, WM8753_INPUT_CONTROL_1, value, mask );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    
    /*
     * Set up ALC for voice.
     * Fortunately WM8753_ALC_STEREO = WM8753_ALC_LEFT | WM8753_ALC_RIGHT
     */
    value = 0;
    if ( WM_AUDIO_IGNORE != micSignalL )
        value |= WM8753_ALC_LEFT;
    if ( WM_AUDIO_IGNORE != micSignalR )
        value |= WM8753_ALC_RIGHT;
    
    status = WMWrite( hDevice, WM8753_ALC_1, WM8753_ALC1_VOICE | value );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    status = WMSetField( hDevice, WM8753_ALC_2, WM8753_ALC2_VOICE, WM8753_ALC2_PROFILE_MASK );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    status = WMWrite( hDevice, WM8753_ALC_3, WM8753_ALC3_VOICE );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    status = WMWrite( hDevice, WM8753_NOISE_GATE, WM8753_NOISE_GATE_VOICE );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    
    /*
     * Enable ST Signal to Left Mixer.
     */
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        status = WMSetField( hDevice, 
                             WM8753_LEFT_OUT_MIX_2, 
                             WM8753_ST2OUT,
                             WM8753_ST2OUT
                           );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }
    }
    
    /*
     * Enable ST Signal to Right Mixer.
     */
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        status = WMSetField( hDevice, 
                             WM8753_RIGHT_OUT_MIX_2,
                             WM8753_ST2OUT,
                             WM8753_ST2OUT
                           );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }
    }
    
    /*
     * Enable ST Signal to Mono Mixer.
     */
    status = WMSetField( hDevice, 
                         WM8753_MONO_OUT_MIX_2,
                         WM8753_ST2OUT,
                         WM8753_ST2OUT
                       );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }

    return WMS_SUCCESS;

error:
    return status;
}

/*-----------------------------------------------------------------------------
 * Function:    WM8753ClearMicRecPaths
 *
 * Turns off the MIC1 record path.
 *
 * Parameters:
 *      hDevice         handle to the device (from WMOpenDevice)
 *      micSignalL      left channel microphone input to clear.
 *      micSignalR      right channel microphone input to clear.
 *
 * Returns:     WMSTATUS
 *      See WMStatus.h
 *---------------------------------------------------------------------------*/
WMSTATUS WM8753ClearMicRecPaths( WM_DEVICE_HANDLE hDevice,
						 	     WM_AUDIO_SIGNAL  micSignalL,
						 	     WM_AUDIO_SIGNAL  micSignalR
                               )
{
    WMSTATUS    status;
    WM_REGVAL   mask = 0;

    /*
     * This should be checked higher up.
     */
	WM_ASSERT( hDevice, !( WM_AUDIO_IGNORE == micSignalL && WM_AUDIO_IGNORE == micSignalR ) );

    /*
     * Mute Left ADC Volume.
     */
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        status = WMWrite( hDevice, 
                          WM8753_LEFT_ADC_VOLUME, 
                          WM8753_ADCVOL_MUTE
                        );
        if( WM_ERROR( status ) )
        {
            goto error;
        }
    }

    /*
     * Mute Right ADC Volume.
     */
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        status = WMWrite( hDevice, 
                          WM8753_RIGHT_ADC_VOLUME, 
                          WM8753_VOLUME_UPDATE      |
                          WM8753_ADCVOL_MUTE
                        );
        if( WM_ERROR( status ) )
        {
            goto error;
        }
    }
    
    /*
     * Make sure our MIC amps are disabled.
     */
    mask = 0;
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        mask |= WM8753_PWR2_MICAMP1EN;
    }
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        mask |= WM8753_PWR2_MICAMP2EN;
    }
    status = WMClearField( hDevice,
                           WM8753_PWR_MGMT_2,
                           mask
                         );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }

    /*
     * Disable ST Signal to Left Mixer.
     */
    if ( WM_AUDIO_IGNORE != micSignalL )
    {
        status = WMClearField( hDevice, 
                               WM8753_LEFT_OUT_MIX_2, 
                               WM8753_ST2OUT
                             );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }
    }
    
    /*
     * Disable ST Signal to Right Mixer.
     */
    if ( WM_AUDIO_IGNORE != micSignalR )
    {
        status = WMClearField( hDevice, 
                               WM8753_RIGHT_OUT_MIX_2,
                               WM8753_ST2OUT
                             );
        if ( WM_ERROR( status ) )
        {
            goto error;
        }
    }
    
    /*
     * Disable ST Signal to Mono Mixer.
     */
    status = WMClearField( hDevice, 
                           WM8753_MONO_OUT_MIX_2,
                           WM8753_ST2OUT
                         );
    if ( WM_ERROR( status ) )
    {
        goto error;
    }
    
    return WMS_SUCCESS;

error:
    return status;
}

#endif  /* WM_AUDIO  && WM8753_FAMILY */
/*------------------------------ END OF FILE ---------------------------------*/