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git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/twl_wrapsdk/trunk@191 4ee2a332-4b2b-5046-8439-1ba90f034370
197 lines
5.8 KiB
C
197 lines
5.8 KiB
C
/*---------------------------------------------------------------------------*
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Project: TwlSDK - SND - libraries
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File: snd_global.c
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Copyright 2004-2006 Nintendo. All rights reserved.
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These coded instructions, statements, and computer programs contain
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proprietary information of Nintendo of America Inc. and/or Nintendo
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Company Ltd., and are protected by Federal copyright law. They may
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not be disclosed to third parties or copied or duplicated in any form,
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in whole or in part, without the prior written consent of Nintendo.
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$Log: snd_global.c,v $
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$NoKeywords: $
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*---------------------------------------------------------------------------*/
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#include <nitro/snd/common/global.h>
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#include <twl/os.h>
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#include <twl/misc.h>
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#include <twl/snd/ARM7/i2s.h>
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#include <nitro/hw/ARM7/ioreg_SND.h>
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#include <nitro/spi/common/pm_common.h>
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#include <nitro/snd/common/channel.h>
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#include <nitro/snd/common/capture.h>
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/******************************************************************************
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macro definition
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******************************************************************************/
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#define SOUND_BIAS_WAIT_COUNT 128
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#define SOUND_BIAS_LEVEL 0x200
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#define SOUND_BIAS_CYCLE_PER_LOOP 4
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/******************************************************************************
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external function declaration
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******************************************************************************/
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extern void PMi_SetControl(u8 sw);
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extern void PMi_ResetControl(u8 sw);
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/******************************************************************************
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public functions
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******************************************************************************/
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/*---------------------------------------------------------------------------*
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Name: SND_Enable
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Description: Enable sound master control
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void SND_Enable(void)
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{
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OSIntrMode enabled = OS_DisableInterrupts();
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I2S_Enable();
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reg_SND_SOUNDCNT_8 |= REG_SND_SOUNDCNT_8_E_MASK;
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(void)OS_RestoreInterrupts(enabled);
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}
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/*---------------------------------------------------------------------------*
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Name: SND_Disable
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Description: Disable sound master control
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Arguments: None
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Returns: None
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*---------------------------------------------------------------------------*/
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void SND_Disable(void)
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{
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OSIntrMode enabled = OS_DisableInterrupts();
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I2S_Disable();
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reg_SND_SOUNDCNT_8 &= ~REG_SND_SOUNDCNT_8_E_MASK;
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(void)OS_RestoreInterrupts(enabled);
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}
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/*---------------------------------------------------------------------------*
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Name: SND_Shutdown
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Description: shutdown sound system
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Arguments: None.
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Returns: None.
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*---------------------------------------------------------------------------*/
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void SND_Shutdown(void)
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{
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int ch;
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SND_Disable();
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for (ch = 0; ch < SND_CHANNEL_NUM; ch++)
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{
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SND_StopChannel(ch, SND_CHANNEL_STOP_HOLD);
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}
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SND_StopCapture(SND_CAPTURE_0);
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SND_StopCapture(SND_CAPTURE_1);
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}
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/*---------------------------------------------------------------------------*
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Name: SND_BeginSleep
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Description: Begin sleep
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Arguments: None.
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Returns: None.
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*---------------------------------------------------------------------------*/
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void SND_BeginSleep(void)
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{
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// adding process for TWL
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I2S_BeginSleep();
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// stop all sound
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SND_Disable();
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// bias level down
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SVC_ResetSoundBias(SOUND_BIAS_WAIT_COUNT);
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OS_SpinWait(SOUND_BIAS_CYCLE_PER_LOOP * SOUND_BIAS_WAIT_COUNT * SOUND_BIAS_LEVEL);
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// sound power off
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PMi_ResetControl(PMIC_CTL_SND_PWR);
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// sound clock stop
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reg_SND_POWCNT &= ~REG_SND_POWCNT_SPE_MASK;
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}
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/*---------------------------------------------------------------------------*
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Name: SND_EndSleep
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Description: End sleep
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Arguments: None.
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Returns: None.
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*---------------------------------------------------------------------------*/
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void SND_EndSleep(void)
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{
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// sound clock start
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reg_SND_POWCNT |= REG_SND_POWCNT_SPE_MASK;
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// sound power on
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PMi_SetControl(PMIC_CTL_SND_PWR);
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// bias level recover
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SVC_SetSoundBias(SOUND_BIAS_WAIT_COUNT * 2);
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// wait 15msec
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OS_SpinWait(OS_MilliSecondsToTicks(15) * 64);
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// sound enable
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SND_Enable();
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// adding process for TWL
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I2S_EndSleep();
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}
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/*---------------------------------------------------------------------------*
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Name: SND_SetMasterVolume
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Description: Set master volume
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Arguments: volume : master volume
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Returns: None
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*---------------------------------------------------------------------------*/
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void SND_SetMasterVolume(int volume)
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{
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SDK_MINMAX_ASSERT(volume, 0, SND_MASTER_VOLUME_MAX);
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reg_SND_SOUNDCNT_VOL = (u8)volume;
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}
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/*---------------------------------------------------------------------------*
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Name: SND_SetOutputSelector
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Description: Set output selector
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Arguments: left : L-OUT selector
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right : R-OUT selector
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channel1 : channel1 output setting
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channel3 : channel3 output setting
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Returns: None
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*---------------------------------------------------------------------------*/
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void SND_SetOutputSelector(SNDOutput left,
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SNDOutput right, SNDChannelOut channel1, SNDChannelOut channel3)
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{
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BOOL enable = (reg_SND_SOUNDCNT_8 & REG_SND_SOUNDCNT_8_E_MASK) ? TRUE : FALSE;
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reg_SND_SOUNDCNT_8 = REG_SND_SOUNDCNT_8_FIELD(enable, channel3, channel1, right, left);
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}
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/*====== End of snd_global.c ======*/
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