//
//      Copyright(C) Renesas Technology Corp. 1999-2005. All rights reserved.
//
//      WaveDev Driver for ITS-DS7
//
//----------------------------------------------------------------------------
//
// FILE      : WAVEOUTPDD.C
// CREATED   : 1999. 4.26 (for HD64465 on PFM-DS6)
// MODIFIED  : 2005.03.04
// AUTHOR    : Renesas Technology Corp.
// HARDWARE  : RENESAS ITS-DS7
// FUNCTIONS : Playback part PDD of waveform audio driver
// HISTORY   : 
//             2003.06.20
//              - Created release code.
//                (based on WaveDev driver for ITS-DS6 Ver.2.2.0 for WCE4.1)
//             2004.04.21
//              - Revised simultaneous use check. If WAVE_FORMAT_QUERY flag  specified,
//                open flag leaks.
//             2004.06.15
//              - Modified HSSI supported full duplex mode.
//             2004.09.01
//              - Created release code for WCE5.0.
//             2005.02.25
//              - Removed software volume control.
//             2005.03.04
//              - Moved private_AudioFillBuffer is moved to each hac.c and hssi.c.

//----------------------------------------------------------------------------

//
//      Copyright (c) 1995-2000 Microsoft Corporation.  All rights reserved.
//


#include <windows.h>
#include <types.h>
#include <memory.h>
#include <excpt.h>
#include <waveddsi.h>
#include <wavedbg.h>
#include <mmsystem.h>
#include <winbase.h>

#include "platform.h"
#include "shx.h"
#include "sh7770.h"
#include "drv_glob.h"
#include "oalintr.h"
#include "wavepdd.h"
#include "waveOutpdd.h"
#include "dma.h"
//#include "drvlib.h"

extern BOOL dma_Init(int, PDMA_INFO *);
extern BOOL dma_Deinit(PDMA_INFO);
extern BOOL dma_SetPort(PDMA_INFO, DWORD);
extern BOOL dma_SetPage(PDMA_INFO, DWORD, DWORD, DWORD, DWORD);
extern BOOL dma_SetControl(PDMA_INFO, DWORD);
extern BOOL dma_SetCommand(PDMA_INFO, DWORD);
extern BOOL dma_InterruptEnable(PDMA_INFO);
extern BOOL dma_InterruptDisable(PDMA_INFO);
extern BOOL dma_Stop(PDMA_INFO);
extern BOOL dma_IsFinished(PDMA_INFO/*, DWORD*/);

PDMA_INFO	pDMA_out;	// DMA Register (for Playback)
extern DWORD	AUDIO_NO;	// Audio Driver No.

extern VOID	get_DMA_Buffer_Address(int, DWORD, ULONG *);
extern DWORD	get_DPTR(int);
extern DWORD	get_DSAR(int, DWORD, int);
extern DWORD	get_DDAR(int, DWORD, int);
extern DWORD	get_DTCR(int, DWORD, int);
extern BOOL	module_init( PDRIVER_GLOBALS, int );
extern VOID	module_deinit( VOID );
extern BOOL	codec_init( VOID );
extern VOID	module_txstart( VOID );
extern VOID	module_txdmastart( VOID );
extern VOID	module_rxstart( VOID );
extern VOID	module_rxdmastart( VOID );
extern VOID	module_txstop( VOID );
extern VOID	module_rxstop( VOID );
extern VOID	conv_sample(PCM_TYPE, ULONG *, ULONG *);
extern VOID	set_DMA_Buffer(	LONG,ULONG,ULONG,ULONG *,unsigned int,int,int *);
extern VOID	set_volume( ULONG );
extern BOOL	check_SamplesPerSec(int, DWORD);
extern BOOL check_PlayInRec(int, int);
extern void	SetMute( BOOL );

extern PWAVEFORMATEX g_pwfx[2];
extern PCM_TYPE g_pcmtype[2];

// base pointers
PBYTE   pAudioBufferBase;		// Audio buffer

extern PDRIVER_GLOBALS	pDriverGlobals;		// Drivers Globals

// Double Buffer for Audio Playback
ULONG dma_pagePhysicalAddress[2];

extern struct _global_volume
{
    ULONG   dwMasterVolume;
    ULONG   dwLineInVolume;
    ULONG   dwMicVolume;
    BOOL    fMasterMute;
    BOOL    fLineInMute;
    BOOL    fMicMute;
    ULONG   dwInputSelect;
} g_VolumeSettings;

ULONG v_nNextPage;

static volatile BOOL v_fMoreData[2];// TRUE iff MDD layer has called StopPlay
                                    //   v_fMoreData was volatile on D9000
                                    //   It could be involved in controlling
                                    //   multiple threads.

unsigned int	extend_data_count;
unsigned int	data_write_count;

// OpenFlag
int		RecOpenFlag;
int		PlayOpenFlag;

/*****************************************************************************
*   FUNCTION :  	private_AudioOutGetInterruptType
*   DESCRIPTION :   decodes type of audio interrupt
*   INPUTS :		None
*   OUTPUTS :     	interrupt type
*   DESIGN NOTES :
*   CAUTIONS :
*****************************************************************************/
AUDIO_STATE
private_AudioOutGetInterruptType(
   VOID
   )
{
	FUNC_WPDD("+PDD_AudioOutGetInterruptType");

	// An audio interrupt has occured. We need to tell the MDD who owns it
	// and what state that puts us in.


	if ( pDriverGlobals->aud[AUDIO_NO].outInt == (USHORT)NULL ) 
	{
		DEBUGMSG(ZONE_TEST, (TEXT("PDD_AudioOutGetInterruptType: ignore")));
		FUNC_WPDD("-PDD_AudioOutGetInterruptType");
		return AUDIO_STATE_IGNORE;	// assume audio-in generated interrupt
	}

	if (!v_fMoreData[WAPI_OUT]) 
	{
		DEBUGMSG(ZONE_TEST, (TEXT("PDD_AudioOutGetInterruptType: stopped")));
		FUNC_WPDD("-PDD_AudioOutGetInterruptType");
		return AUDIO_STATE_OUT_STOPPED;
	}
	else if (pDriverGlobals->aud[AUDIO_NO].play_address != (ULONG)NULL)
	{
		DEBUGMSG(ZONE_TEST, (TEXT("PDD_AudioOutGetInterruptType: playing")));
		FUNC_WPDD("-PDD_AudioOutGetInterruptType");
		return AUDIO_STATE_OUT_PLAYING;
	}
	else
	{
		DEBUGMSG(ZONE_TEST, (TEXT("PDD_AudioOutGetInterruptType:underflow")));
		FUNC_WPDD("-PDD_AudioOutGetInterruptType");
		return AUDIO_STATE_OUT_UNDERFLOW;
	}
}

/*****************************************************************************
*   FUNCTION :  	private_AudioOutInitialize
*   DESCRIPTION :	sets up register access for audio-out
*			sets DA, DMA, and CMT registers that remain constant
*			sets volume to maximum (default)
*   INPUTS :		None
*   OUTPUTS :     	None
*   DESIGN NOTES :
*   CAUTIONS :
*****************************************************************************/
BOOL
private_AudioOutInitialize(
   VOID
   )
{
	BOOL	RET_VALUE;
	ULONG 	SizeOfBuffer;
	char here[] = "PDD_AudioOutInitialize";

	FUNC_WPDD("+PDD_AudioOutInitialize");
	DEBUGMSG(ZONE_TEST, (TEXT("WaveOutpdd.c private_AudioOutInitialize: START\r\n")));

	// Get DMA Transfer Buffer Address (for Playback)
	get_DMA_Buffer_Address(pDriverGlobals->aud[AUDIO_NO].PLAY_CH, AUDIO_NO, dma_pagePhysicalAddress);

	// DMAC Initialize (for Playback)
	dma_Init(pDriverGlobals->aud[AUDIO_NO].PLAY_CH, &pDMA_out);

	//
	// DMA Setting
	//
	dma_SetPort(pDMA_out, get_DPTR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH));
	dma_SetPage(pDMA_out,
                    0,					// Page0
                    get_DSAR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH,AUDIO_NO,0),	// Sorce Address
                    get_DDAR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH,AUDIO_NO,0),	// Destination Address
                    get_DTCR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH,AUDIO_NO,0));	// Transfer Count
	dma_SetPage(pDMA_out,
                    1,					// Page1
                    get_DSAR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH,AUDIO_NO,1),	// Sorce Address
                    get_DDAR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH,AUDIO_NO,1),	// Destination Address
                    get_DTCR(pDriverGlobals->aud[AUDIO_NO].PLAY_CH,AUDIO_NO,1));	// Transfer Count

	// Module Initialize
	if( module_init(pDriverGlobals,AUDIO_NO) == FALSE ){
		// DMAC Deinitialize (for Playback)
		dma_Deinit( pDMA_out );
	}

	// Set pointers to virtual addresses of audio buffers
	SizeOfBuffer = (AUDIO_DMA_PAGE_SIZE * 2);
	pAudioBufferBase = VirtualAlloc(	NULL,
						SizeOfBuffer,
						MEM_RESERVE,
						PAGE_NOACCESS);
	if (pAudioBufferBase == NULL) {
		DEBUGMSG(ZONE_ERROR,(TEXT("Buffer virtual alloc NG!!\r\n")));
		module_deinit();
		return FALSE;
	}
	RET_VALUE = VirtualCopy(	(PVOID)pAudioBufferBase,
					(PVOID)dma_pagePhysicalAddress[0],
					(DWORD)SizeOfBuffer,
					PAGE_READWRITE | PAGE_NOCACHE);
	if (!RET_VALUE){
		DEBUGMSG(ZONE_ERROR,(TEXT("Buffer virtual copy NG!!\r\n")));
		VirtualFree((PVOID)pAudioBufferBase, 0, MEM_RELEASE);
		pAudioBufferBase = NULL;
		module_deinit();
		dma_Deinit(pDMA_out);
		return FALSE;
	}

	//
	// CODEC Initialize
	//
	if( codec_init() != TRUE ){
		VirtualFree((PVOID)pAudioBufferBase, 0, MEM_RELEASE);
		pAudioBufferBase = NULL;
		VirtualFree((PVOID)pDriverGlobals, 0, MEM_RELEASE);
		pDriverGlobals = NULL;
		module_deinit();
		dma_Deinit(pDMA_out);
		return FALSE;
	}

	// Initialize AudioOutInterrupt Flag
	pDriverGlobals->aud[AUDIO_NO].play_address = (ULONG)NULL;
	pDriverGlobals->aud[AUDIO_NO].outInt = (USHORT)NULL;


	DEBUGMSG(ZONE_TEST, (TEXT("WaveOutpdd.c private_AudioOutInitialize: END\r\n")));
	FUNC("-PDD_AudioOutInitialize");
	return TRUE;
}

/*****************************************************************************
*   FUNCTION :  	private_AudioOutPowerHandler
*   DESCRIPTION :   performs power on/off
*   INPUTS :		bPowerDown 1=power off, 0=power on
*   OUTPUTS :     	None
*   DESIGN NOTES :
*   CAUTIONS :
*****************************************************************************/
VOID
private_AudioOutPowerHandler(
	BOOL bPowerDown
	)
{
	BOOL Success;

	FUNC("private_AudioOutPowerHandler");
	DEBUGMSG(ZONE_TEST, (TEXT("private_AudioOutPowerHandler ---- bPowerDown=%d\r\n"),bPowerDown));

	if( bPowerDown )
	{
		private_AudioOutDeinitialize();
	}
	else
	{		// power up
		Success=private_AudioOutInitialize();
	}
	return;	// (see also private_WaveOutClose)
}

/*****************************************************************************
*   FUNCTION :  	private_AudioOutDeinitialize
*   DESCRIPTION :   Reset playback device to initial state
*   INPUTS :		None
*   OUTPUTS :     	None
*   DESIGN NOTES :
*   CAUTIONS :
*****************************************************************************/
VOID
private_AudioOutDeinitialize(
	VOID
	)
{
	FUNC("+PDD_AudioOutDeinitialize");

	// DMA Deinit
	dma_Deinit(pDMA_out);
		
	// Module Deinit
	module_deinit();

	// DMA Transfer Buffer Release
	if( pAudioBufferBase ){
		VirtualFree((PVOID)pAudioBufferBase, 0, MEM_RELEASE);
		pAudioBufferBase = NULL;
	}
		
	// Audio Global Buffer Release
	if( pDriverGlobals ){
		VirtualFree((PVOID)pDriverGlobals, 0, MEM_RELEASE);
		pDriverGlobals = NULL;
	}

	FUNC("-PDD_AudioOutDeinitialize");

}

/*****************************************************************************
*   FUNCTION :  	private_WaveOutStart
*   DESCRIPTION :   Initiates playback of wave
*   INPUTS :		wave
*   OUTPUTS :     	None
*   DESIGN NOTES :  puts double buffer in initial state, starts play
*   CAUTIONS :
*****************************************************************************/
VOID
private_WaveOutStart (
	PWAVEHDR pwh
	)
{
	const PPCMWAVEFORMAT pFormat = (PPCMWAVEFORMAT) g_pwfx[WAPI_OUT];
	DWORD i;

	FUNC_WPDD("+PDD_WaveOutStart");

	v_fMoreData[WAPI_OUT] = TRUE;						// more data expected

	module_txstart();	// Tx Start

	i = 0;
	while ( private_ChangeSampleRate(pFormat->wf.nSamplesPerSec) == FALSE ){		// Set Sampling Rate
		i++;
		if(i>5) break;
	}
	
	v_nNextPage = 0;