vscodec.h File Reference

VLSI decoder definitions. More...

#include <cfg/audio.h>
#include <sys/device.h>
#include <stdint.h>

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Data Structures
struct	_VS_PLUGIN_INFO
struct	VS_HEADERINFO
struct	_VSDCB
	Internal codec control block. More...
Defines
#define	AUDIO0_VSAUTO
#define	AUDIO0_DAC_MIN_GAIN   -127
#define	AUDIO0_DAC_MAX_GAIN   0
#define	AUDIO_DAC_MIN_GAIN   AUDIO0_DAC_MIN_GAIN
#define	AUDIO_DAC_MAX_GAIN   AUDIO0_DAC_MAX_GAIN
#define	AUDIO_DAC_MAX_TREB   8
#define	AUDIO_DAC_MAX_TFIN   15
#define	AUDIO_DAC_MAX_BASS   15
#define	AUDIO_DAC_MAX_BFIN   15
#define	AUDIO_SETWRITETIMEOUT   0x010d
#define	AUDIO_GETWRITETIMEOUT   0x010e
#define	AUDIO_PLAY   0x3001
	Immediately start playing.
#define	AUDIO_CANCEL   0x3002
	Immediately stop playing and discard buffer.
#define	AUDIO_GET_STATUS   0x3003
#define	AUDIO_GET_PLAYGAIN   0x3004
#define	AUDIO_SET_PLAYGAIN   0x3005
#define	AUDIO_GET_PBSIZE   0x3006
#define	AUDIO_SET_PBSIZE   0x3007
#define	AUDIO_GET_PBLEVEL   0x3008
#define	AUDIO_GET_PBWLOW   0x3009
#define	AUDIO_SET_PBWLOW   0x300A
#define	AUDIO_GET_PBWHIGH   0x300B
#define	AUDIO_SET_PBWHIGH   0x300C
#define	AUDIO_BEEP   0x300F
#define	AUDIO_GET_DECINFO   0x3010
	Retrieve decoder information.
#define	AUDIO_GET_DECCAPS   0x3011
	Retrieve decoder capabilities.
#define	AUDIO_GET_DECFMTS   0x3012
	Retrieve decoder formats.
#define	AUDIO_FMT_PLUGIN   0x00000001
#define	AUDIO_FMT_WAV_PCM   0x00000002
#define	AUDIO_FMT_WAV_ADPCM   0x00000004
#define	AUDIO_FMT_WAV_IMA_ADPCM   0x00000008
#define	AUDIO_FMT_VORBIS   0x00000100
#define	AUDIO_FMT_MPEG1_L1   0x00001000
#define	AUDIO_FMT_MPEG1_L2   0x00002000
#define	AUDIO_FMT_MPEG1_L3   0x00004000
#define	AUDIO_FMT_MPEG2_AAC   0x00010000
#define	AUDIO_FMT_MPEG4_AAC   0x00020000
#define	AUDIO_FMT_WMA_V2   0x00100000
#define	AUDIO_FMT_WMA_V7   0x00200000
#define	AUDIO_FMT_WMA_V8   0x00400000
#define	AUDIO_FMT_WMA_V9   0x00800000
#define	AUDIO_SET_DECFMTS   0x3013
	Enable or disable specific decoder formats.
#define	AUDIO_GET_CODINFO   0x3014
	Retrieve encoder information.
#define	AUDIO_GET_CODCAPS   0x3015
	Retrieve encoder capabilities.
#define	AUDIO_GET_CODFMTS   0x3016
	Retrieve encoder formats.
#define	AUDIO_SET_CODFMTS   0x3017
	Enable or disable specific encoder formats.
#define	AUDIO_GET_MIDINFO   0x3018
	Retrieve midi information.
#define	AUDIO_GET_MIDCAPS   0x3019
	Retrieve midi capabilities.
#define	AUDIO_FMT_GMIDI1   0x00000001
#define	AUDIO_FMT_GMIDI2   0x00000002
#define	AUDIO_FMT_SPMIDI0   0x00000004
#define	AUDIO_SET_TREB   0x301a
	Set audio enhancement treble value.
#define	AUDIO_GET_TREB   0x301b
	Get audio enhancement treble value.
#define	AUDIO_SET_TFIN   0x301c
	Set audio enhancement treble frequency.
#define	AUDIO_GET_TFIN   0x301d
	Get audio enhancement treble frequency.
#define	AUDIO_SET_BASS   0x301e
	Set audio enhancement bass value.
#define	AUDIO_GET_BASS   0x301f
	Get audio enhancement bass value.
#define	AUDIO_SET_BFIN   0x3020
	Set audio enhancement bass frequency.
#define	AUDIO_GET_BFIN   0x3021
	Get audio enhancement bass frequency.
#define	AUDIO_PLUGIN_UPLOAD   0x3030
	Upload plug-in.
#define	AUDIO_IRQ_ENABLE   0x3031
	Enable interrupts.
#define	AUDIO_SET_ICLOCK   0x3032
	Set internal clock.
#define	VS_OPCODE_READ   3
#define	VS_OPCODE_WRITE   2
#define	VS_FLUSH_BYTES   2048
	Application register 0 index.
#define	CODEC_STATUS_IDLE   0
#define	CODEC_STATUS_PLAYING   1
#define	CODEC_STATUS_RECORDING   2
#define	VSCODEC_CMD_TIMEOUT   NUT_WAIT_INFINITE
	Minimum time in milliseconds to held hardware reset low.
#define	VSCODEC_DATA_CHUNK_SIZE   32
	Number of data bytes we can send without checking DREQ.
Typedefs
typedef struct _VS_PLUGIN_INFO	VS_PLUGIN_INFO
typedef struct _VSDCB	VSDCB
	Internal codec control block.
Functions
int	VsCodecWaitReady (NUTDEVICE *dev, uint32_t tmo)
	Wait until codec is ready.
uint16_t	VsCodecReg (NUTDEVICE *dev, uint_fast8_t op, uint_fast8_t reg, uint_fast16_t val)
uint16_t	VsCodecMode (NUTDEVICE *dev, uint_fast16_t flags, uint_fast16_t mask)
	Read and modify VLSI audio codec mode flags.
int	VsDecoderSetVolume (NUTDEVICE *dev, int left, int right)
	Set volume.
int	VsDecoderSetBass (NUTDEVICE *dev, int treb, int tfin, int bass, int bfin)
	Set Bass.
uint16_t	VsCodecBeep (NUTDEVICE *dev, uint16_t fsin)
	Start or stop sine wave beeper.
int	VsDecoderBufferInit (NUTDEVICE *dev, uint32_t size)
int	VsCodecIOCtl (NUTDEVICE *dev, int req, void *conf)
	Handle I/O controls for audio codec.
int	VsCodecRead (NUTFILE *nfp, void *data, int len)
	Read from the encoder.
int	VsCodecWrite (NUTFILE *nfp, CONST void *data, int len)
	Write to decoder.
NUTFILE *	VsCodecOpen (NUTDEVICE *dev, CONST char *name, int mode, int acc)
int	VsCodecClose (NUTFILE *nfp)
int	VsCodecWrite_P (NUTFILE *nfp, PGM_P buffer, int len)
	Write program data to decoder.
void	FeederThread (void *arg)
Variables
uint8_t	zero_chunk [VSCODEC_DATA_CHUNK_SIZE]
NUTDEVICE	devVsCodec
	VS10XX device information structure.
NUTDEVICE	devSpiVsCodec0
Mode Control Register
#define	VS_MODE_REG   0
	Register index.
#define	VS_SM_DIFF   0x0001
	Left channel inverted.
#define	VS_SM_RESET   0x0004
	Allow MPEG Layers I & II.
#define	VS_SM_DACT   0x0100
	VS1001 MPEG Layers I & II enable.
#define	VS_SM_BITORD   0x0200
	Data bus bit order.
#define	VS_SM_SDIORD   0x0200
	SDI most significant bit last.
Status Register
VS1001K master mode. Untested and not recommended. Note, that this bit is available on the VS1001 only and is used as a chip select mode flag on other members of the VS10xx family. Share SPI chip select. VS1001K master mode clock speed. Untested and not recommended. Note, that this bit is available on the VS1001 only and is used as an SDI mode flag on other members of the VS10xx family. VS1002 native SDI mode. Default is 0 on the VS1011E and 1 on the VS1002. Not available on the VS1001K. ADPCM recording. Available on VS1033 and VS1053. ADPCM high pass filter. If set at the same time as VS_SM_ADPCM and VS_SM_RESET, ADPCM mode will start with a high-pass filter. This may help intelligibility of speech when there is lots of background noise. Available on VS1033. ADPCM recording selector. Used to select the input for ADPCM recording. If cleared, microphone input is used. If set to 1, LINEIN is used instead. Available on VS1033 and VS1053. Input clock range. Activates a clock divider at the XTAL input. Should be set as soon as possible after a chip reset. Available on VS1033 and VS1053.
#define	VS_STATUS_REG   1
	Register index.
#define	VS_SS_APDOWM1   0x0004
	Internal analog volume control mask.
#define	VS_SS_APDOWN2   0x0008
	Analog driver power down.
#define	VS_SS_VER   0x00F0
	Version mask.
#define	VS_SS_VER_LSB   4
	Version LSB.
#define	VS1001_SS_VER   0
#define	VS1011_SS_VER   1
#define	VS1011E_SS_VER   2
#define	VS1002_SS_VER   2
#define	VS1003_SS_VER   3
#define	VS1053_SS_VER   4
#define	VS1033_SS_VER   5
#define	VS1103_SS_VER   7
Clock Frequency and Multiplier Register
Register index. On some earlier chips, audio interrupts may be missed when writing to this register. For the VS1001K see VS_SM_BASS.
#define	VS_CLOCKF_REG   3
	Register index.
Decode Time Register
Clock frequency mask. Should be set to crystal clock divided by 2000, if the clock is not 24.576 MHz. Must be set before beginning decoding MP3 data. Otherwise the sample rate will not be set correctly. Used for the VS1001, VS1011 and VS1002. VS1003/VS1033 clock frequency mask. Should be set to crystal clock divided by 4000, if the clock is not 12.288 MHz. Used for the VS1003, VS1033 and VS1053. Allowed multiplier addition. Used for WMA decoding with the VS1003, VS1033 and VS1053. Summand 0.5 is not available on the VS1053. Clock multiplier. Available on the VS1003, VS1033 and VS1053. However, multiplier 1.5 is not available on the VS1053. Clock doubler enable. Used for the VS1001, VS1011 and VS1002.
#define	VS_DECODE_TIME_REG   4
	Register index.
Miscellaneous Audio Data Register
#define	VS_AUDATA_REG   5
	Register index.
#define	VS_AD_STEREO   0x8000
	Stereo flag.
RAM Read/Write Register
Current sampling rate mask. Value is sample rate divided by 2. Writing to this register will change the sample rate on the run. To reduce the digital power consumption when idle, you can set a low sample rate. Current bit rate mask. Current sampling rate index mask.
#define	VS_WRAM_REG   6
	Register index.
RAM Read/Write Base Address Register
#define	VS_WRAMADDR_REG   7
	Register index.
Application Start Address Register
Register index. Used to activate previously uploaded application programs.
#define	VS_AIADDR_REG   10
	Register index.
Volume Control Register
#define	VS_VOL_REG   11
	Register index.
#define	VS_VOL_RIGHT   0x00FF
	Right channel volume mask.
#define	VS_VOL_RIGHT_LSB   0
	Right channel volume LSB.
#define	VS_VOL_LEFT   0xFF00
	Right channel volume mask.
#define	VS_VOL_LEFT_LSB   8
	Right channel volume LSB.
#define	VS_VOL_MAX   0x0000
#define	VS_VOL_MIN   0xFEFE
#define	VS_VOL_OFF   0xFFFF

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Detailed Description

VLSI decoder definitions.

Definition in file vscodec.h.

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Define Documentation

#define AUDIO0_VSAUTO

Definition at line 80 of file vscodec.h.