xllp_audio.c

Xcale270Bsp包,wince平台

/******************************************************************************
**
**  COPYRIGHT (C) 2001, 2002 Intel Corporation.
**
**  This software as well as the software described in it is furnished under
**  license and may only be used or copied in accordance with the terms of the
**  license. The information in this file is furnished for informational use
**  only, is subject to change without notice, and should not be construed as
**  a commitment by Intel Corporation. Intel Corporation assumes no
**  responsibility or liability for any errors or inaccuracies that may appear
**  in this document or any software that may be provided in association with
**  this document. 
**  Except as permitted by such license, no part of this document may be 
**  reproduced, stored in a retrieval system, or transmitted in any form or by
**  any means without the express written consent of Intel Corporation. 
**
**  FILENAME:       xllp_touch.c
**
**  PURPOSE: contains all primitive functions for Bulverde/Mainstone/UCB1400 basic
**             audio operations
******************************************************************************/

#include "xllp_audio.h"

/******************************************************************************
XDP_DOC_HDR_END

  Function Name: XllpAc97SetDACVolume(P_XLLP_AC97_T pAC97Reg,
                        XLLP_UINT8_T leftVolume, XLLP_UINT8_T rightVolume)

  Description: Set master volume of UCB1400 codec
			  				
  Global Registers Modified: Master volume register of UCB1400 codec

  Input Arguments: P_XLLP_AC97_T, P_XLLP_OST_T, void *, XLLP_UINT8_T, XLLP_UINT8_T
                leftVolume and rightVolume should be less than XLLP_AC97_U14_MAX_VOLUME
                0 -- mute, 1 -- attenuation of -93db, 63 -- 0db attenuation, 
                every step from 1 -- 63 is 1.5db
     
  Output Arguments:
     None
  
  return:
	XLLP_TRUE
	XLLP_FALSE

XLLP_DOC_HDR_END
*******************************************************************************/
XLLP_BOOL_T XllpAc97SetDACVolume(P_XLLP_AC97_T pAC97Reg, P_XLLP_OST_T pOstRegs,
							XLLP_UINT8_T leftVolume, XLLP_UINT8_T rightVolume)
{
    XLLP_AC97_ERROR_T err;
    XLLP_UINT16_T value;
    
    if ((0 == leftVolume) && (0 == rightVolume))
    {
        //mute the output
        value = XLLP_AC97_U14_MVR_MM;
    }
    else
    {
        leftVolume = XLLP_AC97_U14_MAX_VOLUME - leftVolume;    //translate into attenuation value
        rightVolume = XLLP_AC97_U14_MAX_VOLUME - rightVolume;
        value = leftVolume << XLLP_AC97_U14_MVR_ML_SHIFT;
        value |= rightVolume;
    }

    err = XllpAc97Write(XLLP_AC97_CR_MASTER_VOLUME, value, pAC97Reg, pOstRegs, XLLP_AC97_RW_TIMEOUT_DEF, 
                XLLP_AUDIO_CODEC_ID);     
    if (XLLP_AC97_NO_ERROR != err)
    {
        return XLLP_FALSE;
    }
    
    return XLLP_TRUE;    
}

/******************************************************************************
XDP_DOC_HDR_END

  Function Name: XllpAc97SelectADCSource(P_XLLP_AC97_T pAC97Reg, XLLP_AC97_ADC_SOURCE source)

  Description: Set record source of UCB1400 codec
			  				
  Global Registers Modified: Record select register of UCB1400 codec

  Input Arguments: P_XLLP_AC97_T, P_XLLP_OST_T, void *, XLLP_AC97_ADC_SOURCE
     
  Output Arguments:
     None
  
  return:
	XLLP_TRUE
	XLLP_FALSE

XLLP_DOC_HDR_END
*******************************************************************************/
XLLP_BOOL_T XllpAc97SelectADCSource(P_XLLP_AC97_T pAC97Reg, P_XLLP_OST_T pOstRegs, XLLP_AC97_ADC_SOURCE source)
{
    XLLP_AC97_ERROR_T err;
    XLLP_UINT16_T value;
    
    if (XLLP_AC97_MIC == source)
    {//microphone
        value = XLLP_AC97_U14_RSR_SL_MIC | XLLP_AC97_U14_RSR_SR_CL;
    }
    else
    {//line in
        value = (XLLP_UINT16_T)(XLLP_AC97_U14_RSR_SR_LINE | XLLP_AC97_U14_RSR_SL_LINE);
    }
    err = XllpAc97Write(XLLP_AC97_CR_RECORD_SELECT, value, pAC97Reg, pOstRegs, XLLP_AC97_RW_TIMEOUT_DEF, 
                XLLP_AUDIO_CODEC_ID);     
    if (XLLP_AC97_NO_ERROR != err)
    {
        return XLLP_FALSE;
    }
    
    return XLLP_TRUE;    
}

/******************************************************************************
XDP_DOC_HDR_END

  Function Name: XllpAc97SetADCGain(P_XLLP_AC97_T pAC97Reg, XLLP_UINT8_T leftVolume, XLLP_UINT8_T rightVolume)

  Description: Set audio ADC gain of UCB1400 codec
			  				
  Global Registers Modified: Record gain register of UCB1400 codec

  Input Arguments: P_XLLP_AC97_T, P_XLLP_OST_T, void *, XLLP_UINT8_T, XLLP_UINT8_T
                leftVolume and rightVolume should be less than XLLP_AC97_U14_MAX_ADCGAIN
                0 -- mute, 1 -- 1.5db, 15 -- 22.5db
                every step from 1 -- 15 is 1.5db
     
  Output Arguments:
     None
  
  return:
	XLLP_TRUE
	XLLP_FALSE

XLLP_DOC_HDR_END
*******************************************************************************/
XLLP_BOOL_T XllpAc97SetADCGain(P_XLLP_AC97_T pAC97Reg, P_XLLP_OST_T pOstRegs, XLLP_UINT8_T leftVolume, XLLP_UINT8_T rightVolume)
{
    XLLP_AC97_ERROR_T err;
    XLLP_UINT16_T value;
    
    if ((0 == leftVolume) && (0 == rightVolume))
    {
        //mute the record
        value = XLLP_AC97_U14_RGR_RM;
    }
    else
    {
        value = leftVolume << XLLP_AC97_U14_RGR_GL_SHIFT;
        value |= rightVolume;
    }

    err = XllpAc97Write(XLLP_AC97_CR_RECORD_GAIN, value, pAC97Reg, pOstRegs, 
    				XLLP_AC97_RW_TIMEOUT_DEF, XLLP_AUDIO_CODEC_ID);     
    if (XLLP_AC97_NO_ERROR != err)
    {
        return XLLP_FALSE;
    }
    
    return XLLP_TRUE;        
}


/******************************************************************************
XDP_DOC_HDR_END

  Function Name: XllpAc97SetSampleRate(P_XLLP_AC97_T pAC97Reg, XLLP_BOOL_T isDAC, XLLP_UINT32_T sampleRate)

  Description: Set DAC or ADC sample rate of UCB1400 codec
			  				
  Global Registers Modified: Extention audio control status register of UCB1400 codec
                             PCM front DAC rate control register
                             PCM L+R ADC rate control register

  Input Arguments: P_XLLP_AC97_T, P_XLLP_OST_T, void *, XLLP_BOOL_T, XLLP_UINT32_T
     
  Output Arguments:
     None
  
  return:
	XLLP_TRUE
	XLLP_FALSE

XLLP_DOC_HDR_END
*******************************************************************************/
XLLP_BOOL_T XllpAc97SetSampleRate(P_XLLP_AC97_T pAC97Reg, P_XLLP_OST_T pOstRegs, XLLP_BOOL_T isDAC, XLLP_UINT32_T sampleRate)
{
    XLLP_AC97_ERROR_T err;
    XLLP_UINT16_T value;
    
    switch (sampleRate)
    {
        case 8000:
            value = XLLP_AC97_U14_DR_8000;
            break;
        case 11025:
            value = XLLP_AC97_U14_DR_11025;
            break;
        case 16000:
            value = XLLP_AC97_U14_DR_16000;
            break;
        case 22050:
            value = XLLP_AC97_U14_DR_22050;
            break;
        case 32000:
            value = XLLP_AC97_U14_DR_32000;
            break;
        case 44100:
            value = XLLP_AC97_U14_DR_44100;
            break;
        case 48000:
            value = XLLP_AC97_U14_DR_48000;
            break;
        default:
            return XLLP_FALSE;        
    }
    //enable VRA mode
    err = XllpAc97Write(XLLP_AC97_CR_E_AUDIO_CTRL_STAT, XLLP_AC97_U14_EASCR_VRA, pAC97Reg, 
    				pOstRegs, XLLP_AC97_RW_TIMEOUT_DEF, 
                XLLP_AUDIO_CODEC_ID);     
    if (XLLP_AC97_NO_ERROR != err)
    {
        return XLLP_FALSE;
    }
    
    if (XLLP_TRUE == isDAC)
    {
        err = XllpAc97Write(XLLP_AC97_CR_E_ASR_PCM_FRNT_DAC_RT, value, pAC97Reg, pOstRegs, 
        				XLLP_AC97_RW_TIMEOUT_DEF, XLLP_AUDIO_CODEC_ID);     
    }
    else
    {
        err = XllpAc97Write(XLLP_AC97_CR_E_ASR_PCM_LR_ADC_RT, value, pAC97Reg, pOstRegs,
        				 XLLP_AC97_RW_TIMEOUT_DEF, XLLP_AUDIO_CODEC_ID);     
    }
    if (XLLP_AC97_NO_ERROR != err)
    {
        return XLLP_FALSE;
    }
    return XLLP_TRUE;    
}