/*
 *      SiS 7018, Trident 4D Wave DX/NX, Acer Lab M5451 Sound Driver.
 *      Copyright (c) 2002, 2008-2011 S.Zharski <imker@gmx.li>
 *      Distributed under the terms of the MIT license.
 *
 */
#ifndef _SiS7018_STREAM_H_
#define _SiS7018_STREAM_H_


#include "hmulti_audio.h"


class Device;

class Stream {
public:
                                                        Stream(Device* device, bool isInput);
                                                        ~Stream();

                status_t                        Init();
                void                            Free();
                status_t                        InitCheck() { return fStatus; }

                status_t                        Start();
                status_t                        Stop();
                bool                            IsActive() { return fIsActive; }

                void                            GetBuffers(uint32& Flags,
                                                                                int32& BuffersCount,
                                                                                int32& ChannelsCount,
                                                                                uint32& BufferSize,
                                                                                buffer_desc** Buffers);

                void                            ExchangeBuffers(bigtime_t& RealTime,
                                                                                        bigtime_t& FramesCount,
                                                                                        int32& BufferCycle);

                void                            GetFormat(multi_format_info *Format);
                status_t                        SetFormat(_multi_format& format,
                                                                                        uint32 formats, uint32 rates);

                bool                            InterruptHandler();

private:

                uint32                          _DecodeRate(uint32 rate);
inline  bool                            _UseBankB() { return (fHWChannel & 0x20) == 0x20; }
inline  uint32                          _HWVoice() { return fHWChannel & 0x1f; }
inline  uint32                          _HWId();

                Device*                         fDevice;
                status_t                        fStatus;
                bool                            fIsInput;
                bool                            fIsActive;
                uint32                          fHWChannel;

                area_id                         fBuffersArea;
                size_t                          fBuffersAreaSize;
                size_t                          fBufferSamplesCount;
                void*                           fBuffersAddress;
                phys_addr_t                     fBuffersPhysAddress;

                _multi_format           fFormat;
                bigtime_t                       fRealTime;
                bigtime_t                       fFramesCount;
                int32                           fBufferCycle;
};


#endif // _SiS7018_STREAM_H_