soundcard.h

linux1.1源代码

		unsigned short	key;		/* 	Initialize to FM_PATCH or OPL3_PATCH */
#define FM_PATCH	0x01fd
#define OPL3_PATCH	0x03fd
		short		device;		/*	Synth# (0-4)	*/
		int 		channel;	/*	Program# to be initialized 	*/
		sbi_instr_data	operators;	/*	Register settings for operator cells (.SBI format)	*/
	};

struct synth_info {	/* Read only */
		char	name[30];
		int	device;		/* 0-N. INITIALIZE BEFORE CALLING */
		int	synth_type;
#define SYNTH_TYPE_FM			0
#define SYNTH_TYPE_SAMPLE		1

		int	synth_subtype;
#define FM_TYPE_ADLIB			0x00
#define FM_TYPE_OPL3			0x01

#define SAMPLE_TYPE_GUS			0x10

		int	perc_mode;	/* No longer supported */
		int	nr_voices;
		int	nr_drums;	/* Obsolete field */
		int	instr_bank_size;
		unsigned long	capabilities;	
#define SYNTH_CAP_PERCMODE		0x00000001 /* No longer used */
#define SYNTH_CAP_OPL3			0x00000002 /* Set if OPL3 supported */
		int	dummies[19];	/* Reserve space */
	};

struct midi_info {
		char		name[30];
		int		device;		/* 0-N. INITIALIZE BEFORE CALLING */
		unsigned long	capabilities;	/* To be defined later */
		int		dev_type;
		int		dummies[18];	/* Reserve space */
	};

/********************************************
 * IOCTL commands for /dev/dsp and /dev/audio
 */

#define SNDCTL_DSP_RESET		_IO  ('P', 0)
#define SNDCTL_DSP_SYNC			_IO  ('P', 1)
#define SNDCTL_DSP_SPEED		_IOWR('P', 2, int)
#define SNDCTL_DSP_STEREO		_IOWR('P', 3, int)
#define SNDCTL_DSP_GETBLKSIZE		_IOWR('P', 4, int)
#define SNDCTL_DSP_SAMPLESIZE		_IOWR('P', 5, int)	/* 8, 12 or 16 */
#define SOUND_PCM_WRITE_CHANNELS	_IOWR('P', 6, int)
#define SOUND_PCM_WRITE_FILTER		_IOWR('P', 7, int)
#define SNDCTL_DSP_POST			_IO  ('P', 8)
#define SNDCTL_DSP_SUBDIVIDE		_IOWR('P', 9, int)

#define SOUND_PCM_READ_RATE		_IOR ('P', 2, int)
#define SOUND_PCM_READ_CHANNELS		_IOR ('P', 6, int)
#define SOUND_PCM_READ_BITS		_IOR ('P', 5, int)
#define SOUND_PCM_READ_FILTER		_IOR ('P', 7, int)

/* Some alias names */
#define SOUND_PCM_WRITE_BITS		SNDCTL_DSP_SAMPLESIZE
#define SOUND_PCM_WRITE_RATE		SNDCTL_DSP_SPEED
#define SOUND_PCM_POST			SNDCTL_DSP_POST
#define SOUND_PCM_RESET			SNDCTL_DSP_RESET
#define SOUND_PCM_SYNC			SNDCTL_DSP_SYNC
#define SOUND_PCM_SUBDIVIDE		SNDCTL_DSP_SUBDIVIDE

/*********************************************
 * IOCTL commands for /dev/mixer
 */
	
/* 
 * Mixer devices
 *
 * There can be up to 20 different analog mixer channels. The
 * SOUND_MIXER_NRDEVICES gives the currently supported maximum. 
 * The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
 * the devices supported by the particular mixer.
 */

#define SOUND_MIXER_NRDEVICES	12
#define SOUND_MIXER_VOLUME	0
#define SOUND_MIXER_BASS	1
#define SOUND_MIXER_TREBLE	2
#define SOUND_MIXER_SYNTH	3
#define SOUND_MIXER_PCM		4
#define SOUND_MIXER_SPEAKER	5
#define SOUND_MIXER_LINE	6
#define SOUND_MIXER_MIC		7
#define SOUND_MIXER_CD		8
#define SOUND_MIXER_IMIX	9	/*  Recording monitor  */
#define SOUND_MIXER_ALTPCM	10
#define SOUND_MIXER_RECLEV	11	/* Recording level */

/* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX) */
/* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space */
#define SOUND_ONOFF_MIN		28
#define SOUND_ONOFF_MAX		30
#define SOUND_MIXER_MUTE	28	/* 0 or 1 */
#define SOUND_MIXER_ENHANCE	29	/* Enhanced stereo (0, 40, 60 or 80) */
#define SOUND_MIXER_LOUD	30	/* 0 or 1 */

/* Note!	Number 31 cannot be used since the sign bit is reserved */

#define SOUND_DEVICE_LABELS	{"Vol  ", "Bass ", "Trebl", "Synth", "Pcm  ", "Spkr ", "Line ", \
				 "Mic  ", "CD   ", "Mix  ", "Pcm2 ", "rec"}

#define SOUND_DEVICE_NAMES	{"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
				 "mic", "cd", "mix", "pcm2", "rec"}

/*	Device bitmask identifiers	*/

#define SOUND_MIXER_RECSRC	0xff	/* Arg contains a bit for each recording source */
#define SOUND_MIXER_DEVMASK	0xfe	/* Arg contains a bit for each supported device */
#define SOUND_MIXER_RECMASK	0xfd	/* Arg contains a bit for each supported recording source */
#define SOUND_MIXER_CAPS	0xfc
	#define SOUND_CAP_EXCL_INPUT	0x00000001	/* Only one recording source at a time */
#define SOUND_MIXER_STEREODEVS	0xfb	/* Mixer channels supporting stereo */

/*	Device mask bits	*/

#define SOUND_MASK_VOLUME	(1 << SOUND_MIXER_VOLUME)
#define SOUND_MASK_BASS		(1 << SOUND_MIXER_BASS)
#define SOUND_MASK_TREBLE	(1 << SOUND_MIXER_TREBLE)
#define SOUND_MASK_SYNTH	(1 << SOUND_MIXER_SYNTH)
#define SOUND_MASK_PCM		(1 << SOUND_MIXER_PCM)
#define SOUND_MASK_SPEAKER	(1 << SOUND_MIXER_SPEAKER)
#define SOUND_MASK_LINE		(1 << SOUND_MIXER_LINE)
#define SOUND_MASK_MIC		(1 << SOUND_MIXER_MIC)
#define SOUND_MASK_CD		(1 << SOUND_MIXER_CD)
#define SOUND_MASK_IMIX		(1 << SOUND_MIXER_IMIX)
#define SOUND_MASK_ALTPCM	(1 << SOUND_MIXER_ALTPCM)
#define SOUND_MASK_RECLEV	(1 << SOUND_MIXER_RECLEV)

#define SOUND_MASK_MUTE		(1 << SOUND_MIXER_MUTE)
#define SOUND_MASK_ENHANCE	(1 << SOUND_MIXER_ENHANCE)
#define SOUND_MASK_LOUD		(1 << SOUND_MIXER_LOUD)

#define MIXER_READ(dev)		_IOR('M', dev, int)
#define SOUND_MIXER_READ_VOLUME		MIXER_READ(SOUND_MIXER_VOLUME)
#define SOUND_MIXER_READ_BASS		MIXER_READ(SOUND_MIXER_BASS)
#define SOUND_MIXER_READ_TREBLE		MIXER_READ(SOUND_MIXER_TREBLE)
#define SOUND_MIXER_READ_SYNTH		MIXER_READ(SOUND_MIXER_SYNTH)
#define SOUND_MIXER_READ_PCM		MIXER_READ(SOUND_MIXER_PCM)
#define SOUND_MIXER_READ_SPEAKER	MIXER_READ(SOUND_MIXER_SPEAKER)
#define SOUND_MIXER_READ_LINE		MIXER_READ(SOUND_MIXER_LINE)
#define SOUND_MIXER_READ_MIC		MIXER_READ(SOUND_MIXER_MIC)
#define SOUND_MIXER_READ_CD		MIXER_READ(SOUND_MIXER_CD)
#define SOUND_MIXER_READ_IMIX		MIXER_READ(SOUND_MIXER_IMIX)
#define SOUND_MIXER_READ_ALTPCM		MIXER_READ(SOUND_MIXER_ALTPCM)
#define SOUND_MIXER_READ_RECLEV		MIXER_READ(SOUND_MIXER_RECLEV)
#define SOUND_MIXER_READ_MUTE		MIXER_READ(SOUND_MIXER_MUTE)
#define SOUND_MIXER_READ_ENHANCE	MIXER_READ(SOUND_MIXER_ENHANCE)
#define SOUND_MIXER_READ_LOUD		MIXER_READ(SOUND_MIXER_LOUD)

#define SOUND_MIXER_READ_RECSRC		MIXER_READ(SOUND_MIXER_RECSRC)
#define SOUND_MIXER_READ_DEVMASK	MIXER_READ(SOUND_MIXER_DEVMASK)
#define SOUND_MIXER_READ_RECMASK	MIXER_READ(SOUND_MIXER_RECMASK)
#define SOUND_MIXER_READ_STEREODEVS	MIXER_READ(SOUND_MIXER_STEREODEVS)
#define SOUND_MIXER_READ_CAPS		MIXER_READ(SOUND_MIXER_CAPS)

#define MIXER_WRITE(dev)		_IOWR('M', dev, int)
#define SOUND_MIXER_WRITE_VOLUME	MIXER_WRITE(SOUND_MIXER_VOLUME)
#define SOUND_MIXER_WRITE_BASS		MIXER_WRITE(SOUND_MIXER_BASS)
#define SOUND_MIXER_WRITE_TREBLE	MIXER_WRITE(SOUND_MIXER_TREBLE)
#define SOUND_MIXER_WRITE_SYNTH		MIXER_WRITE(SOUND_MIXER_SYNTH)
#define SOUND_MIXER_WRITE_PCM		MIXER_WRITE(SOUND_MIXER_PCM)
#define SOUND_MIXER_WRITE_SPEAKER	MIXER_WRITE(SOUND_MIXER_SPEAKER)
#define SOUND_MIXER_WRITE_LINE		MIXER_WRITE(SOUND_MIXER_LINE)
#define SOUND_MIXER_WRITE_MIC		MIXER_WRITE(SOUND_MIXER_MIC)
#define SOUND_MIXER_WRITE_CD		MIXER_WRITE(SOUND_MIXER_CD)
#define SOUND_MIXER_WRITE_IMIX		MIXER_WRITE(SOUND_MIXER_IMIX)
#define SOUND_MIXER_WRITE_ALTPCM	MIXER_WRITE(SOUND_MIXER_ALTPCM)
#define SOUND_MIXER_WRITE_RECLEV	MIXER_WRITE(SOUND_MIXER_RECLEV)
#define SOUND_MIXER_WRITE_MUTE		MIXER_WRITE(SOUND_MIXER_MUTE)
#define SOUND_MIXER_WRITE_ENHANCE	MIXER_WRITE(SOUND_MIXER_ENHANCE)
#define SOUND_MIXER_WRITE_LOUD		MIXER_WRITE(SOUND_MIXER_LOUD)

#define SOUND_MIXER_WRITE_RECSRC	MIXER_WRITE(SOUND_MIXER_RECSRC)

/*
 *	The following mixer ioctl calls are compatible with the BSD driver by
 *	  Steve Haehnichen <[e-mail]>
 *
 * Since this interface is entirely SB specific, it will be dropped in the
 * near future.
 */

typedef unsigned char S_BYTE;
typedef unsigned char S_FLAG;
struct stereo_vol
{
  S_BYTE l;			/* Left volume */
  S_BYTE r;			/* Right volume */
};

#define MIXER_IOCTL_SET_LEVELS 		_IOW ('s', 20, struct sb_mixer_levels)
#define MIXER_IOCTL_SET_PARAMS 		_IOW ('s', 21, struct sb_mixer_params)
#define MIXER_IOCTL_READ_LEVELS 	_IOR ('s', 22, struct sb_mixer_levels)
#define MIXER_IOCTL_READ_PARAMS 	_IOR ('s', 23, struct sb_mixer_params)
#define MIXER_IOCTL_RESET		_IO  ('s', 24)

/*
 * Mixer volume levels for MIXER_IOCTL_SET_VOL & MIXER_IOCTL_READ_VOL
 */
struct sb_mixer_levels
{
  struct stereo_vol master;	/* Master volume */
  struct stereo_vol voc;	/* DSP Voice volume */
  struct stereo_vol fm;		/* FM volume */
  struct stereo_vol line;	/* Line-in volume */
  struct stereo_vol cd;		/* CD audio */
  S_BYTE mic;			/* Microphone level */
};

/*
 * Mixer parameters for MIXER_IOCTL_SET_PARAMS & MIXER_IOCTL_READ_PARAMS
 */
struct sb_mixer_params
{
  S_BYTE record_source;		/* Recording source (See SRC_xxx below) */
  S_FLAG hifreq_filter;		/* Filter frequency (hi/low) */
  S_FLAG filter_input;		/* ANFI input filter */
  S_FLAG filter_output;		/* DNFI output filter */
  S_FLAG dsp_stereo;		/* 1 if DSP is in Stereo mode */
};

#define SRC_MIC         1	/* Select Microphone recording source */
#define SRC_CD          3	/* Select CD recording source */
#define SRC_LINE        7	/* Use Line-in for recording source */

#if !defined(KERNEL) && !defined(INKERNEL)
/*
 *	Some convenience macros to simplify programming of the
 *	/dev/sequencer interface
 *
 *	These macros define the API which should be used when possible.
 */

void seqbuf_dump(void);	/* This function must be provided by programs */

/* Sample seqbuf_dump() implementation:
 *
 *	SEQ_DEFINEBUF (2048);	-- Defines a buffer for 2048 bytes
 *
 *	int seqfd;		-- The file descriptor for /dev/sequencer.
 *
 *	void
 *	seqbuf_dump ()
 *	{
 *	  if (_seqbufptr)
 *	    if (write (seqfd, _seqbuf, _seqbufptr) == -1)
 *	      {
 *		perror ("write /dev/sequencer");
 *		exit (-1);
 *	      }
 *	  _seqbufptr = 0;
 *	}
 */

#define SEQ_DEFINEBUF(len)		unsigned char _seqbuf[len]; int _seqbuflen = len, _seqbufptr = 0
#define SEQ_PM_DEFINES			struct patmgr_info _pm_info
#define _SEQ_NEEDBUF(len)		if ((_seqbufptr+(len)) > _seqbuflen) seqbuf_dump()
#define _SEQ_ADVBUF(len)		_seqbufptr += len
#define SEQ_DUMPBUF			seqbuf_dump
#define PM_LOAD_PATCH(dev, bank, pgm)	(SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
					_pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
					_pm_info.parm1 = bank, _pm_info.parm2 = 1, \
					ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
#define PM_LOAD_PATCHES(dev, bank, pgm) (SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
					_pm_info.device=dev, memcpy(_pm_info.data.data8, pgm, 128), \
					_pm_info.parm1 = bank, _pm_info.parm2 = 128, \
					ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))

#define SEQ_START_NOTE(dev, voice, note, vol)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_NOTEON;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					_seqbuf[_seqbufptr+4] = (note);\
					_seqbuf[_seqbufptr+5] = (vol);\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_STOP_NOTE(dev, voice, note, vol)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_NOTEOFF;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					_seqbuf[_seqbufptr+4] = (note);\
					_seqbuf[_seqbufptr+5] = (vol);\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_CHN_PRESSURE(dev, voice, pressure)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_AFTERTOUCH;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					_seqbuf[_seqbufptr+4] = (pressure);\
					_seqbuf[_seqbufptr+5] = 0;\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_PANNING(dev, voice, pos)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_BALANCE;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					(char)_seqbuf[_seqbufptr+4] = (pos);\
					_seqbuf[_seqbufptr+5] = 0;\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_CONTROL(dev, voice, controller, value)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					_seqbuf[_seqbufptr+4] = (controller);\
					*(short *)&_seqbuf[_seqbufptr+5] = (value);\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_PITCHBEND(dev, voice, value) SEQ_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
#define SEQ_BENDER_RANGE(dev, voice, value) SEQ_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
#define SEQ_EXPRESSION(dev, voice, value) SEQ_CONTROL(dev, voice, CTRL_EXPRESSION, value)
#define SEQ_MAIN_VOLUME(dev, voice, value) SEQ_CONTROL(dev, voice, CTRL_MAIN_VOLUME, value)

#define SEQ_START_TIMER()		{_SEQ_NEEDBUF(4);\
					_seqbuf[_seqbufptr] = SEQ_SYNCTIMER;\
					_seqbuf[_seqbufptr+1] = 0;\
					_seqbuf[_seqbufptr+2] = 0;\
					_seqbuf[_seqbufptr+3] = 0;\
					_SEQ_ADVBUF(4);}
#define SEQ_SET_PATCH(dev, voice, patch)	{_SEQ_NEEDBUF(8);\
					_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
					_seqbuf[_seqbufptr+1] = SEQ_PGMCHANGE;\
					_seqbuf[_seqbufptr+2] = (dev);\
					_seqbuf[_seqbufptr+3] = (voice);\
					_seqbuf[_seqbufptr+4] = (patch);\
					_seqbuf[_seqbufptr+5] = 0;\
					_seqbuf[_seqbufptr+6] = 0;\
					_seqbuf[_seqbufptr+7] = 0;\
					_SEQ_ADVBUF(8);}

#define SEQ_WAIT_TIME(ticks)		{_SEQ_NEEDBUF(4);\
				 	*(unsigned long *)&_seqbuf[_seqbufptr] = SEQ_WAIT | ((ticks) << 8);\
				 	_SEQ_ADVBUF(4);}

#define SEQ_ECHO_BACK(key)		{_SEQ_NEEDBUF(4);\
				 	*(unsigned long *)&_seqbuf[_seqbufptr] = SEQ_ECHO | ((key) << 8);\
				 	_SEQ_ADVBUF(4);}

#define SEQ_MIDIOUT(device, byte)	{_SEQ_NEEDBUF(4);\
					_seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
					_seqbuf[_seqbufptr+1] = (byte);\
					_seqbuf[_seqbufptr+2] = (device);\
					_seqbuf[_seqbufptr+3] = 0;\
					_SEQ_ADVBUF(4);}
#define SEQ_WRPATCH(patch, len)		{if (_seqbufptr) seqbuf_dump();\
					if (write(seqfd, (char*)(patch), len)==-1) \
					   perror("Write patch: /dev/sequencer");}

#endif
long soundcard_init(long mem_start);
#endif