mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-11-03 09:01:52 -05:00
b7c05ad942
Updated the syntax of configuration file to substitute values from the environment space. Updated alsa.conf to replace old snd_defaults_ functions.
562 lines
25 KiB
C
562 lines
25 KiB
C
/****************************************************************************
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* *
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* control.h *
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* Control Interface *
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* *
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****************************************************************************/
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/**
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* \defgroup Control Control Interface
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* The control interface.
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* \{
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*/
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typedef struct sndrv_aes_iec958 snd_aes_iec958_t;
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/** CTL card info container */
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typedef struct _snd_ctl_card_info snd_ctl_card_info_t;
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/** CTL element identificator container */
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typedef struct _snd_ctl_elem_id snd_ctl_elem_id_t;
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/** CTL element identificator list container */
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typedef struct _snd_ctl_elem_list snd_ctl_elem_list_t;
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/** CTL element info container */
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typedef struct _snd_ctl_elem_info snd_ctl_elem_info_t;
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/** CTL element value container */
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typedef struct _snd_ctl_elem_value snd_ctl_elem_value_t;
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/** CTL event container */
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typedef struct _snd_ctl_event snd_ctl_event_t;
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/** Card type */
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typedef enum _snd_card_type {
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/** Gravis UltraSound Classic */
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SND_CARD_TYPE_GUS_CLASSIC = SNDRV_CARD_TYPE_GUS_CLASSIC,
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/** Gravis UltraSound Extreme */
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SND_CARD_TYPE_GUS_EXTREME = SNDRV_CARD_TYPE_GUS_EXTREME,
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/** Gravis UltraSound ACE */
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SND_CARD_TYPE_GUS_ACE = SNDRV_CARD_TYPE_GUS_ACE,
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/** Gravis UltraSound Max */
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SND_CARD_TYPE_GUS_MAX = SNDRV_CARD_TYPE_GUS_MAX,
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/** AMD InterWave */
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SND_CARD_TYPE_AMD_INTERWAVE = SNDRV_CARD_TYPE_AMD_INTERWAVE,
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/** SoundBlaster v1.0 */
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SND_CARD_TYPE_SB_10 = SNDRV_CARD_TYPE_SB_10,
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/** SoundBlaster v2.0 */
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SND_CARD_TYPE_SB_20 = SNDRV_CARD_TYPE_SB_20,
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/** SoundBlaster Pro */
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SND_CARD_TYPE_SB_PRO = SNDRV_CARD_TYPE_SB_PRO,
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/** SoundBlaster 16 */
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SND_CARD_TYPE_SB_16 = SNDRV_CARD_TYPE_SB_16,
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/** SoundBlaster AWE */
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SND_CARD_TYPE_SB_AWE = SNDRV_CARD_TYPE_SB_AWE,
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/** ESS ES1688 */
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SND_CARD_TYPE_ESS_ES1688 = SNDRV_CARD_TYPE_ESS_ES1688,
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/** Yamaha OPL3 SA2/3 */
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SND_CARD_TYPE_OPL3_SA2 = SNDRV_CARD_TYPE_OPL3_SA2,
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/** Mozart */
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SND_CARD_TYPE_MOZART = SNDRV_CARD_TYPE_MOZART,
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/** S3 SonicVibes */
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SND_CARD_TYPE_S3_SONICVIBES = SNDRV_CARD_TYPE_S3_SONICVIBES,
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/** Ensoniq AudioPCI ES1370 */
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SND_CARD_TYPE_ENS1370 = SNDRV_CARD_TYPE_ENS1370,
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/** Ensoniq AudioPCI ES1371 / Creative CT5880 */
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SND_CARD_TYPE_ENS1371 = SNDRV_CARD_TYPE_ENS1371,
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/** Cirrus Logic CS4232 */
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SND_CARD_TYPE_CS4232 = SNDRV_CARD_TYPE_CS4232,
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/** Cirrus Logic CS4236+ */
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SND_CARD_TYPE_CS4236 = SNDRV_CARD_TYPE_CS4236,
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/** AMD InterWave + TEA6330T */
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SND_CARD_TYPE_AMD_INTERWAVE_STB = SNDRV_CARD_TYPE_AMD_INTERWAVE_STB,
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/** ESS ES1938 */
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SND_CARD_TYPE_ESS_ES1938 = SNDRV_CARD_TYPE_ESS_ES1938,
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/** ESS ES18XX */
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SND_CARD_TYPE_ESS_ES18XX = SNDRV_CARD_TYPE_ESS_ES18XX,
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/** Cirus Logic CS4231 */
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SND_CARD_TYPE_CS4231 = SNDRV_CARD_TYPE_CS4231,
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/** Opti92x */
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SND_CARD_TYPE_OPTI92X = SNDRV_CARD_TYPE_OPTI92X,
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/** Serial MIDI */
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SND_CARD_TYPE_SERIAL = SNDRV_CARD_TYPE_SERIAL,
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/** Analog Devices AD1848 */
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SND_CARD_TYPE_AD1848 = SNDRV_CARD_TYPE_AD1848,
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/** Trident 4D-Wave DX */
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SND_CARD_TYPE_TRID4DWAVEDX = SNDRV_CARD_TYPE_TRID4DWAVEDX,
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/** Trident 4D-Wave NX */
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SND_CARD_TYPE_TRID4DWAVENX = SNDRV_CARD_TYPE_TRID4DWAVENX,
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/** Sound Galaxy */
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SND_CARD_TYPE_SGALAXY = SNDRV_CARD_TYPE_SGALAXY,
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/** Cirrus Logic CS46xx */
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SND_CARD_TYPE_CS46XX = SNDRV_CARD_TYPE_CS46XX,
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/** WaveFront */
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SND_CARD_TYPE_WAVEFRONT = SNDRV_CARD_TYPE_WAVEFRONT,
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/** Turtle Beach Tropez */
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SND_CARD_TYPE_TROPEZ = SNDRV_CARD_TYPE_TROPEZ,
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/** Turtle Beach Tropez+ */
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SND_CARD_TYPE_TROPEZPLUS = SNDRV_CARD_TYPE_TROPEZPLUS,
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/** Turtle Beach Maui */
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SND_CARD_TYPE_MAUI = SNDRV_CARD_TYPE_MAUI,
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/** CMI8330 */
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SND_CARD_TYPE_CMI8330 = SNDRV_CARD_TYPE_CMI8330,
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/** Dummy (/dev/null) soundcard */
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SND_CARD_TYPE_DUMMY = SNDRV_CARD_TYPE_DUMMY,
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/** Avance Logic ALS100 */
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SND_CARD_TYPE_ALS100 = SNDRV_CARD_TYPE_ALS100,
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/** Obsolete */
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SND_CARD_TYPE_SHARE = SNDRV_CARD_TYPE_SHARE,
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/** SiS SI7018 */
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SND_CARD_TYPE_SI_7018 = SNDRV_CARD_TYPE_SI_7018,
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/** Opti93x */
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SND_CARD_TYPE_OPTI93X = SNDRV_CARD_TYPE_OPTI93X,
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/** MidiTimePiece AV multiport MIDI */
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SND_CARD_TYPE_MTPAV = SNDRV_CARD_TYPE_MTPAV,
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/** Virtual MIDI */
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SND_CARD_TYPE_VIRMIDI = SNDRV_CARD_TYPE_VIRMIDI,
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/** EMU10K1 (SB Live, Emu APS) */
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SND_CARD_TYPE_EMU10K1 = SNDRV_CARD_TYPE_EMU10K1,
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/** RME Hammerfall */
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SND_CARD_TYPE_HAMMERFALL = SNDRV_CARD_TYPE_HAMMERFALL,
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/** RME Hammerfall light */
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SND_CARD_TYPE_HAMMERFALL_LIGHT = SNDRV_CARD_TYPE_HAMMERFALL_LIGHT,
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/** ICE1712 (Envy24) */
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SND_CARD_TYPE_ICE1712 = SNDRV_CARD_TYPE_ICE1712,
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/** CMI8338 */
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SND_CARD_TYPE_CMI8338 = SNDRV_CARD_TYPE_CMI8338,
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/** CMI8738 */
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SND_CARD_TYPE_CMI8738 = SNDRV_CARD_TYPE_CMI8738,
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/** Analog Device AD1816A */
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SND_CARD_TYPE_AD1816A = SNDRV_CARD_TYPE_AD1816A,
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/** Intel i8x0 */
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SND_CARD_TYPE_INTEL8X0 = SNDRV_CARD_TYPE_INTEL8X0,
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/** ESS Maestro 1 (old) */
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SND_CARD_TYPE_ESS_ESOLDM1 = SNDRV_CARD_TYPE_ESS_ESOLDM1,
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/** ESS Maestro 2 */
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SND_CARD_TYPE_ESS_ES1968 = SNDRV_CARD_TYPE_ESS_ES1968,
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/** ESS Maestro 2E */
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SND_CARD_TYPE_ESS_ES1978 = SNDRV_CARD_TYPE_ESS_ES1978,
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/** RME Digi96 */
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SND_CARD_TYPE_DIGI96 = SNDRV_CARD_TYPE_DIGI96,
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/** VIA SouthBridge 686A/686B */
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SND_CARD_TYPE_VIA82C686A = SNDRV_CARD_TYPE_VIA82C686A,
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/** Forte Media FM801 */
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SND_CARD_TYPE_FM801 = SNDRV_CARD_TYPE_FM801,
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/** Aztech AZT2320 */
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SND_CARD_TYPE_AZT2320 = SNDRV_CARD_TYPE_AZT2320,
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/** Prodif Plus */
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SND_CARD_TYPE_PRODIF_PLUS = SNDRV_CARD_TYPE_PRODIF_PLUS,
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/** Yamaha PCI */
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SND_CARD_TYPE_YMFPCI = SNDRV_CARD_TYPE_YMFPCI,
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/** Cirrus Logic CS4281 */
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SND_CARD_TYPE_CS4281 = SNDRV_CARD_TYPE_CS4281,
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/** Generic MPU401 UART */
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SND_CARD_TYPE_MPU401_UART = SNDRV_CARD_TYPE_MPU401_UART,
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/** Avance Logic ALS4000 */
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SND_CARD_TYPE_ALS4000 = SNDRV_CARD_TYPE_ALS4000,
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/** ESS Allegro 1 */
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SND_CARD_TYPE_ALLEGRO_1 = SNDRV_CARD_TYPE_ALLEGRO_1,
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/** ESS Allegro */
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SND_CARD_TYPE_ALLEGRO = SNDRV_CARD_TYPE_ALLEGRO,
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/** ESS Maestro 3 */
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SND_CARD_TYPE_MAESTRO3 = SNDRV_CARD_TYPE_MAESTRO3,
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/** AWACS */
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SND_CARD_TYPE_AWACS = SNDRV_CARD_TYPE_AWACS,
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/** NeoMagic NM256AV */
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SND_CARD_TYPE_NM256AV = SNDRV_CARD_TYPE_NM256AV,
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/** NeoMagic NM256ZX */
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SND_CARD_TYPE_NM256ZX = SNDRV_CARD_TYPE_NM256ZX,
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/** VIA VT8233 bridge */
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SND_CARD_TYPE_VIA8233 = SNDRV_CARD_TYPE_VIA8233,
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SND_CARD_TYPE_LAST = SNDRV_CARD_TYPE_LAST,
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} snd_card_type_t;
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/** CTL element type */
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typedef enum _snd_ctl_elem_type {
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/** Invalid type */
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SND_CTL_ELEM_TYPE_NONE = SNDRV_CTL_ELEM_TYPE_NONE,
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/** Boolean contents */
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SND_CTL_ELEM_TYPE_BOOLEAN = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
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/** Integer contents */
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SND_CTL_ELEM_TYPE_INTEGER = SNDRV_CTL_ELEM_TYPE_INTEGER,
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/** Enumerated contents */
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SND_CTL_ELEM_TYPE_ENUMERATED = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
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/** Bytes contents */
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SND_CTL_ELEM_TYPE_BYTES = SNDRV_CTL_ELEM_TYPE_BYTES,
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/** IEC958 (S/PDIF) setting content */
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SND_CTL_ELEM_TYPE_IEC958 = SNDRV_CTL_ELEM_TYPE_IEC958,
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SND_CTL_ELEM_TYPE_LAST = SNDRV_CTL_ELEM_TYPE_LAST,
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} snd_ctl_elem_type_t;
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/** CTL related interface */
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typedef enum _snd_ctl_elem_iface {
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/** Card level */
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SND_CTL_ELEM_IFACE_CARD = SNDRV_CTL_ELEM_IFACE_CARD,
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/** Hardware dependent device */
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SND_CTL_ELEM_IFACE_HWDEP = SNDRV_CTL_ELEM_IFACE_HWDEP,
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/** Mixer */
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SND_CTL_ELEM_IFACE_MIXER = SNDRV_CTL_ELEM_IFACE_MIXER,
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/** PCM */
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SND_CTL_ELEM_IFACE_PCM = SNDRV_CTL_ELEM_IFACE_PCM,
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/** RawMidi */
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SND_CTL_ELEM_IFACE_RAWMIDI = SNDRV_CTL_ELEM_IFACE_RAWMIDI,
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/** Timer */
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SND_CTL_ELEM_IFACE_TIMER = SNDRV_CTL_ELEM_IFACE_TIMER,
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/** Sequencer */
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SND_CTL_ELEM_IFACE_SEQUENCER = SNDRV_CTL_ELEM_IFACE_SEQUENCER,
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SND_CTL_ELEM_IFACE_LAST = SNDRV_CTL_ELEM_IFACE_LAST,
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} snd_ctl_elem_iface_t;
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/** Event class */
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typedef enum _snd_ctl_event_type {
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/** Elements related event */
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SND_CTL_EVENT_ELEM = SNDRV_CTL_EVENT_ELEM,
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SND_CTL_EVENT_LAST = SNDRV_CTL_EVENT_LAST,
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}snd_ctl_event_type_t;
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/** Element has been removed (Warning: test this first and if set don't
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* test the other masks) \hideinitializer */
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#define SND_CTL_EVENT_MASK_REMOVE SNDRV_CTL_EVENT_MASK_REMOVE
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/** Element has been added \hideinitializer */
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#define SND_CTL_EVENT_MASK_ADD SNDRV_CTL_EVENT_MASK_ADD
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/** Element info has been changed \hideinitializer */
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#define SND_CTL_EVENT_MASK_INFO SNDRV_CTL_EVENT_MASK_INFO
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/** Element value has been changed \hideinitializer */
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#define SND_CTL_EVENT_MASK_VALUE SNDRV_CTL_EVENT_MASK_VALUE
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#define SND_CTL_NAME_IEC958 SNDRV_CTL_NAME_IEC958
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/** CTL type */
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typedef enum _snd_ctl_type {
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/** Kernel level CTL */
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SND_CTL_TYPE_HW,
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/** Shared memory client CTL */
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SND_CTL_TYPE_SHM,
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/** INET client CTL (not yet implemented) */
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SND_CTL_TYPE_INET
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} snd_ctl_type_t;
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/** Non blocking mode \hideinitializer */
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#define SND_CTL_NONBLOCK 0x0001
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/** Async notification \hideinitializer */
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#define SND_CTL_ASYNC 0x0002
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/** CTL handle */
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typedef struct _snd_ctl snd_ctl_t;
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/** SCTL replace type */
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typedef struct {
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const char *key;
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const char *old_value;
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const char *new_value;
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} snd_sctl_replace_t;
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/** SCTL type */
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typedef struct _snd_sctl snd_sctl_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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int snd_card_load(int card);
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int snd_card_next(int *card);
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int snd_card_get_index(const char *name);
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int snd_card_get_name(int card, char **name);
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int snd_card_get_longname(int card, char **name);
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int snd_card_type_string_to_enum(const char *strid, snd_card_type_t *enumid);
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int snd_card_type_enum_to_string(snd_card_type_t enumid, char **strid);
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int snd_sctl_build(snd_ctl_t *ctl, snd_sctl_t **setup, snd_config_t *config, snd_sctl_replace_t *replace);
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int snd_sctl_free(snd_ctl_t *ctl, snd_sctl_t *setup);
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int snd_ctl_open(snd_ctl_t **ctl, const char *name, int mode);
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int snd_ctl_close(snd_ctl_t *ctl);
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int snd_ctl_nonblock(snd_ctl_t *ctl, int nonblock);
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int snd_ctl_async(snd_ctl_t *ctl, int sig, pid_t pid);
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int snd_ctl_poll_descriptors_count(snd_ctl_t *ctl);
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int snd_ctl_poll_descriptors(snd_ctl_t *ctl, struct pollfd *pfds, unsigned int space);
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int snd_ctl_subscribe_events(snd_ctl_t *ctl, int subscribe);
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int snd_ctl_card_info(snd_ctl_t *ctl, snd_ctl_card_info_t *info);
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int snd_ctl_elem_list(snd_ctl_t *ctl, snd_ctl_elem_list_t * list);
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int snd_ctl_elem_info(snd_ctl_t *ctl, snd_ctl_elem_info_t *info);
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int snd_ctl_elem_read(snd_ctl_t *ctl, snd_ctl_elem_value_t *value);
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int snd_ctl_elem_write(snd_ctl_t *ctl, snd_ctl_elem_value_t *value);
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int snd_ctl_elem_lock(snd_ctl_t *ctl, snd_ctl_elem_id_t *id);
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int snd_ctl_elem_unlock(snd_ctl_t *ctl, snd_ctl_elem_id_t *id);
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int snd_ctl_hwdep_next_device(snd_ctl_t *ctl, int * device);
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int snd_ctl_hwdep_info(snd_ctl_t *ctl, snd_hwdep_info_t * info);
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int snd_ctl_pcm_next_device(snd_ctl_t *ctl, int *device);
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int snd_ctl_pcm_info(snd_ctl_t *ctl, snd_pcm_info_t * info);
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int snd_ctl_pcm_prefer_subdevice(snd_ctl_t *ctl, int subdev);
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int snd_ctl_rawmidi_next_device(snd_ctl_t *ctl, int * device);
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int snd_ctl_rawmidi_info(snd_ctl_t *ctl, snd_rawmidi_info_t * info);
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int snd_ctl_rawmidi_prefer_subdevice(snd_ctl_t *ctl, int subdev);
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int snd_ctl_read(snd_ctl_t *ctl, snd_ctl_event_t *event);
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int snd_ctl_wait(snd_ctl_t *ctl, int timeout);
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const char *snd_ctl_name(snd_ctl_t *ctl);
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snd_ctl_type_t snd_ctl_type(snd_ctl_t *ctl);
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void snd_ctl_elem_set_bytes(snd_ctl_elem_value_t *obj, void *data, size_t size);
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const char *snd_ctl_elem_type_name(snd_ctl_elem_type_t type);
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const char *snd_ctl_elem_iface_name(snd_ctl_elem_iface_t iface);
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const char *snd_ctl_event_type_name(snd_ctl_event_type_t type);
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unsigned int snd_ctl_event_elem_get_mask(const snd_ctl_event_t *obj);
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unsigned int snd_ctl_event_elem_get_numid(const snd_ctl_event_t *obj);
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void snd_ctl_event_elem_get_id(const snd_ctl_event_t *obj, snd_ctl_elem_id_t *ptr);
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snd_ctl_elem_iface_t snd_ctl_event_elem_get_interface(const snd_ctl_event_t *obj);
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unsigned int snd_ctl_event_elem_get_device(const snd_ctl_event_t *obj);
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unsigned int snd_ctl_event_elem_get_subdevice(const snd_ctl_event_t *obj);
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const char *snd_ctl_event_elem_get_name(const snd_ctl_event_t *obj);
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unsigned int snd_ctl_event_elem_get_index(const snd_ctl_event_t *obj);
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int snd_ctl_elem_list_alloc_space(snd_ctl_elem_list_t *obj, unsigned int entries);
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void snd_ctl_elem_list_free_space(snd_ctl_elem_list_t *obj);
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size_t snd_ctl_elem_id_sizeof(void);
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/** \hideinitializer
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* \brief allocate an invalid #snd_ctl_elem_id_t using standard alloca
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* \param ptr returned pointer
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*/
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#define snd_ctl_elem_id_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_id_t *) alloca(snd_ctl_elem_id_sizeof()); memset(*ptr, 0, snd_ctl_elem_id_sizeof()); } while (0)
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int snd_ctl_elem_id_malloc(snd_ctl_elem_id_t **ptr);
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void snd_ctl_elem_id_free(snd_ctl_elem_id_t *obj);
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void snd_ctl_elem_id_copy(snd_ctl_elem_id_t *dst, const snd_ctl_elem_id_t *src);
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unsigned int snd_ctl_elem_id_get_numid(const snd_ctl_elem_id_t *obj);
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snd_ctl_elem_iface_t snd_ctl_elem_id_get_interface(const snd_ctl_elem_id_t *obj);
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unsigned int snd_ctl_elem_id_get_device(const snd_ctl_elem_id_t *obj);
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unsigned int snd_ctl_elem_id_get_subdevice(const snd_ctl_elem_id_t *obj);
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const char *snd_ctl_elem_id_get_name(const snd_ctl_elem_id_t *obj);
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unsigned int snd_ctl_elem_id_get_index(const snd_ctl_elem_id_t *obj);
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void snd_ctl_elem_id_set_numid(snd_ctl_elem_id_t *obj, unsigned int val);
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void snd_ctl_elem_id_set_interface(snd_ctl_elem_id_t *obj, snd_ctl_elem_iface_t val);
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void snd_ctl_elem_id_set_device(snd_ctl_elem_id_t *obj, unsigned int val);
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void snd_ctl_elem_id_set_subdevice(snd_ctl_elem_id_t *obj, unsigned int val);
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void snd_ctl_elem_id_set_name(snd_ctl_elem_id_t *obj, const char *val);
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void snd_ctl_elem_id_set_index(snd_ctl_elem_id_t *obj, unsigned int val);
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size_t snd_ctl_card_info_sizeof(void);
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/** \hideinitializer
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* \brief allocate an invalid #snd_ctl_card_info_t using standard alloca
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* \param ptr returned pointer
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*/
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#define snd_ctl_card_info_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_card_info_t *) alloca(snd_ctl_card_info_sizeof()); memset(*ptr, 0, snd_ctl_card_info_sizeof()); } while (0)
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int snd_ctl_card_info_malloc(snd_ctl_card_info_t **ptr);
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void snd_ctl_card_info_free(snd_ctl_card_info_t *obj);
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void snd_ctl_card_info_copy(snd_ctl_card_info_t *dst, const snd_ctl_card_info_t *src);
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int snd_ctl_card_info_get_card(const snd_ctl_card_info_t *obj);
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snd_card_type_t snd_ctl_card_info_get_type(const snd_ctl_card_info_t *obj);
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const char *snd_ctl_card_info_get_id(const snd_ctl_card_info_t *obj);
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const char *snd_ctl_card_info_get_abbreviation(const snd_ctl_card_info_t *obj);
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const char *snd_ctl_card_info_get_name(const snd_ctl_card_info_t *obj);
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const char *snd_ctl_card_info_get_longname(const snd_ctl_card_info_t *obj);
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const char *snd_ctl_card_info_get_mixerid(const snd_ctl_card_info_t *obj);
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const char *snd_ctl_card_info_get_mixername(const snd_ctl_card_info_t *obj);
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size_t snd_ctl_event_sizeof(void);
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/** \hideinitializer
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* \brief allocate an invalid #snd_ctl_event_t using standard alloca
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* \param ptr returned pointer
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*/
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#define snd_ctl_event_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_event_t *) alloca(snd_ctl_event_sizeof()); memset(*ptr, 0, snd_ctl_event_sizeof()); } while (0)
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int snd_ctl_event_malloc(snd_ctl_event_t **ptr);
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void snd_ctl_event_free(snd_ctl_event_t *obj);
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void snd_ctl_event_copy(snd_ctl_event_t *dst, const snd_ctl_event_t *src);
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snd_ctl_event_type_t snd_ctl_event_get_type(const snd_ctl_event_t *obj);
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size_t snd_ctl_elem_list_sizeof(void);
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/** \hideinitializer
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* \brief allocate an invalid #snd_ctl_elem_list_t using standard alloca
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* \param ptr returned pointer
|
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*/
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#define snd_ctl_elem_list_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_list_t *) alloca(snd_ctl_elem_list_sizeof()); memset(*ptr, 0, snd_ctl_elem_list_sizeof()); } while (0)
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int snd_ctl_elem_list_malloc(snd_ctl_elem_list_t **ptr);
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void snd_ctl_elem_list_free(snd_ctl_elem_list_t *obj);
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void snd_ctl_elem_list_copy(snd_ctl_elem_list_t *dst, const snd_ctl_elem_list_t *src);
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void snd_ctl_elem_list_set_offset(snd_ctl_elem_list_t *obj, unsigned int val);
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unsigned int snd_ctl_elem_list_get_used(const snd_ctl_elem_list_t *obj);
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unsigned int snd_ctl_elem_list_get_count(const snd_ctl_elem_list_t *obj);
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void snd_ctl_elem_list_get_id(const snd_ctl_elem_list_t *obj, unsigned int idx, snd_ctl_elem_id_t *ptr);
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unsigned int snd_ctl_elem_list_get_numid(const snd_ctl_elem_list_t *obj, unsigned int idx);
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snd_ctl_elem_iface_t snd_ctl_elem_list_get_interface(const snd_ctl_elem_list_t *obj, unsigned int idx);
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unsigned int snd_ctl_elem_list_get_device(const snd_ctl_elem_list_t *obj, unsigned int idx);
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unsigned int snd_ctl_elem_list_get_subdevice(const snd_ctl_elem_list_t *obj, unsigned int idx);
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const char *snd_ctl_elem_list_get_name(const snd_ctl_elem_list_t *obj, unsigned int idx);
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unsigned int snd_ctl_elem_list_get_index(const snd_ctl_elem_list_t *obj, unsigned int idx);
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size_t snd_ctl_elem_info_sizeof(void);
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/** \hideinitializer
|
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* \brief allocate an invalid #snd_ctl_elem_info_t using standard alloca
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|
* \param ptr returned pointer
|
|
*/
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|
#define snd_ctl_elem_info_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_info_t *) alloca(snd_ctl_elem_info_sizeof()); memset(*ptr, 0, snd_ctl_elem_info_sizeof()); } while (0)
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int snd_ctl_elem_info_malloc(snd_ctl_elem_info_t **ptr);
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void snd_ctl_elem_info_free(snd_ctl_elem_info_t *obj);
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void snd_ctl_elem_info_copy(snd_ctl_elem_info_t *dst, const snd_ctl_elem_info_t *src);
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snd_ctl_elem_type_t snd_ctl_elem_info_get_type(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_readable(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_writable(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_volatile(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_inactive(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_locked(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_owner(const snd_ctl_elem_info_t *obj);
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int snd_ctl_elem_info_is_indirect(const snd_ctl_elem_info_t *obj);
|
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pid_t snd_ctl_elem_info_get_owner(const snd_ctl_elem_info_t *obj);
|
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unsigned int snd_ctl_elem_info_get_count(const snd_ctl_elem_info_t *obj);
|
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long snd_ctl_elem_info_get_min(const snd_ctl_elem_info_t *obj);
|
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long snd_ctl_elem_info_get_max(const snd_ctl_elem_info_t *obj);
|
|
long snd_ctl_elem_info_get_step(const snd_ctl_elem_info_t *obj);
|
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unsigned int snd_ctl_elem_info_get_items(const snd_ctl_elem_info_t *obj);
|
|
void snd_ctl_elem_info_set_item(snd_ctl_elem_info_t *obj, unsigned int val);
|
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const char *snd_ctl_elem_info_get_item_name(const snd_ctl_elem_info_t *obj);
|
|
void snd_ctl_elem_info_get_id(const snd_ctl_elem_info_t *obj, snd_ctl_elem_id_t *ptr);
|
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unsigned int snd_ctl_elem_info_get_numid(const snd_ctl_elem_info_t *obj);
|
|
snd_ctl_elem_iface_t snd_ctl_elem_info_get_interface(const snd_ctl_elem_info_t *obj);
|
|
unsigned int snd_ctl_elem_info_get_device(const snd_ctl_elem_info_t *obj);
|
|
unsigned int snd_ctl_elem_info_get_subdevice(const snd_ctl_elem_info_t *obj);
|
|
const char *snd_ctl_elem_info_get_name(const snd_ctl_elem_info_t *obj);
|
|
unsigned int snd_ctl_elem_info_get_index(const snd_ctl_elem_info_t *obj);
|
|
void snd_ctl_elem_info_set_id(snd_ctl_elem_info_t *obj, const snd_ctl_elem_id_t *ptr);
|
|
void snd_ctl_elem_info_set_numid(snd_ctl_elem_info_t *obj, unsigned int val);
|
|
void snd_ctl_elem_info_set_interface(snd_ctl_elem_info_t *obj, snd_ctl_elem_iface_t val);
|
|
void snd_ctl_elem_info_set_device(snd_ctl_elem_info_t *obj, unsigned int val);
|
|
void snd_ctl_elem_info_set_subdevice(snd_ctl_elem_info_t *obj, unsigned int val);
|
|
void snd_ctl_elem_info_set_name(snd_ctl_elem_info_t *obj, const char *val);
|
|
void snd_ctl_elem_info_set_index(snd_ctl_elem_info_t *obj, unsigned int val);
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|
|
|
size_t snd_ctl_elem_value_sizeof(void);
|
|
/** \hideinitializer
|
|
* \brief allocate an invalid #snd_ctl_elem_value_t using standard alloca
|
|
* \param ptr returned pointer
|
|
*/
|
|
#define snd_ctl_elem_value_alloca(ptr) do { assert(ptr); *ptr = (snd_ctl_elem_value_t *) alloca(snd_ctl_elem_value_sizeof()); memset(*ptr, 0, snd_ctl_elem_value_sizeof()); } while (0)
|
|
int snd_ctl_elem_value_malloc(snd_ctl_elem_value_t **ptr);
|
|
void snd_ctl_elem_value_free(snd_ctl_elem_value_t *obj);
|
|
void snd_ctl_elem_value_copy(snd_ctl_elem_value_t *dst, const snd_ctl_elem_value_t *src);
|
|
void snd_ctl_elem_value_get_id(const snd_ctl_elem_value_t *obj, snd_ctl_elem_id_t *ptr);
|
|
unsigned int snd_ctl_elem_value_get_numid(const snd_ctl_elem_value_t *obj);
|
|
snd_ctl_elem_iface_t snd_ctl_elem_value_get_interface(const snd_ctl_elem_value_t *obj);
|
|
unsigned int snd_ctl_elem_value_get_device(const snd_ctl_elem_value_t *obj);
|
|
unsigned int snd_ctl_elem_value_get_subdevice(const snd_ctl_elem_value_t *obj);
|
|
const char *snd_ctl_elem_value_get_name(const snd_ctl_elem_value_t *obj);
|
|
unsigned int snd_ctl_elem_value_get_index(const snd_ctl_elem_value_t *obj);
|
|
void snd_ctl_elem_value_set_id(snd_ctl_elem_value_t *obj, const snd_ctl_elem_id_t *ptr);
|
|
void snd_ctl_elem_value_set_numid(snd_ctl_elem_value_t *obj, unsigned int val);
|
|
void snd_ctl_elem_value_set_interface(snd_ctl_elem_value_t *obj, snd_ctl_elem_iface_t val);
|
|
void snd_ctl_elem_value_set_device(snd_ctl_elem_value_t *obj, unsigned int val);
|
|
void snd_ctl_elem_value_set_subdevice(snd_ctl_elem_value_t *obj, unsigned int val);
|
|
void snd_ctl_elem_value_set_name(snd_ctl_elem_value_t *obj, const char *val);
|
|
void snd_ctl_elem_value_set_index(snd_ctl_elem_value_t *obj, unsigned int val);
|
|
int snd_ctl_elem_value_get_boolean(const snd_ctl_elem_value_t *obj, unsigned int idx);
|
|
long snd_ctl_elem_value_get_integer(const snd_ctl_elem_value_t *obj, unsigned int idx);
|
|
unsigned int snd_ctl_elem_value_get_enumerated(const snd_ctl_elem_value_t *obj, unsigned int idx);
|
|
unsigned char snd_ctl_elem_value_get_byte(const snd_ctl_elem_value_t *obj, unsigned int idx);
|
|
void snd_ctl_elem_value_set_boolean(snd_ctl_elem_value_t *obj, unsigned int idx, long val);
|
|
void snd_ctl_elem_value_set_integer(snd_ctl_elem_value_t *obj, unsigned int idx, long val);
|
|
void snd_ctl_elem_value_set_enumerated(snd_ctl_elem_value_t *obj, unsigned int idx, unsigned int val);
|
|
void snd_ctl_elem_value_set_byte(snd_ctl_elem_value_t *obj, unsigned int idx, unsigned char val);
|
|
const void * snd_ctl_elem_value_get_bytes(const snd_ctl_elem_value_t *obj);
|
|
void snd_ctl_elem_value_get_iec958(const snd_ctl_elem_value_t *obj, snd_aes_iec958_t *ptr);
|
|
void snd_ctl_elem_value_set_iec958(snd_ctl_elem_value_t *obj, const snd_aes_iec958_t *ptr);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/**
|
|
* \defgroup HControl Highlevel Control Interface
|
|
* \ingroup Control
|
|
* The highlevel control interface.
|
|
* \{
|
|
*/
|
|
|
|
/** HCTL element handle */
|
|
typedef struct _snd_hctl_elem snd_hctl_elem_t;
|
|
|
|
/** HCTL handle */
|
|
typedef struct _snd_hctl snd_hctl_t;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* \brief Compare function for sorting HCTL elements
|
|
* \param e1 First element
|
|
* \param e2 Second element
|
|
* \return -1 if e1 < e2, 0 if e1 == e2, 1 if e1 > e2
|
|
*/
|
|
typedef int (*snd_hctl_compare_t)(const snd_hctl_elem_t *e1,
|
|
const snd_hctl_elem_t *e2);
|
|
int snd_hctl_compare_fast(const snd_hctl_elem_t *c1,
|
|
const snd_hctl_elem_t *c2);
|
|
/**
|
|
* \brief HCTL callback function
|
|
* \param hctl HCTL handle
|
|
* \param mask event mask
|
|
* \param elem related HCTL element (if any)
|
|
* \return 0 on success otherwise a negative error code
|
|
*/
|
|
typedef int (*snd_hctl_callback_t)(snd_hctl_t *hctl,
|
|
unsigned int mask,
|
|
snd_hctl_elem_t *elem);
|
|
/**
|
|
* \brief HCTL element callback function
|
|
* \param elem HCTL element
|
|
* \param mask event mask
|
|
* \return 0 on success otherwise a negative error code
|
|
*/
|
|
typedef int (*snd_hctl_elem_callback_t)(snd_hctl_elem_t *elem,
|
|
unsigned int mask);
|
|
|
|
int snd_hctl_open(snd_hctl_t **hctl, const char *name, int mode);
|
|
int snd_hctl_close(snd_hctl_t *hctl);
|
|
int snd_hctl_nonblock(snd_hctl_t *hctl, int nonblock);
|
|
int snd_hctl_async(snd_hctl_t *hctl, int sig, pid_t pid);
|
|
int snd_hctl_poll_descriptors_count(snd_hctl_t *hctl);
|
|
int snd_hctl_poll_descriptors(snd_hctl_t *hctl, struct pollfd *pfds, unsigned int space);
|
|
unsigned int snd_hctl_get_count(snd_hctl_t *hctl);
|
|
int snd_hctl_set_compare(snd_hctl_t *hctl, snd_hctl_compare_t hsort);
|
|
snd_hctl_elem_t *snd_hctl_first_elem(snd_hctl_t *hctl);
|
|
snd_hctl_elem_t *snd_hctl_last_elem(snd_hctl_t *hctl);
|
|
snd_hctl_elem_t *snd_hctl_find_elem(snd_hctl_t *hctl, const snd_ctl_elem_id_t *id);
|
|
void snd_hctl_set_callback(snd_hctl_t *hctl, snd_hctl_callback_t callback);
|
|
void snd_hctl_set_callback_private(snd_hctl_t *hctl, void *data);
|
|
void *snd_hctl_get_callback_private(snd_hctl_t *hctl);
|
|
int snd_hctl_load(snd_hctl_t *hctl);
|
|
int snd_hctl_free(snd_hctl_t *hctl);
|
|
int snd_hctl_handle_events(snd_hctl_t *hctl);
|
|
const char *snd_hctl_name(snd_hctl_t *hctl);
|
|
snd_ctl_type_t snd_hctl_type(snd_hctl_t *hctl);
|
|
int snd_hctl_wait(snd_hctl_t *hctl, int timeout);
|
|
|
|
snd_hctl_elem_t *snd_hctl_elem_next(snd_hctl_elem_t *elem);
|
|
snd_hctl_elem_t *snd_hctl_elem_prev(snd_hctl_elem_t *elem);
|
|
int snd_hctl_elem_info(snd_hctl_elem_t *elem, snd_ctl_elem_info_t * info);
|
|
int snd_hctl_elem_read(snd_hctl_elem_t *elem, snd_ctl_elem_value_t * value);
|
|
int snd_hctl_elem_write(snd_hctl_elem_t *elem, snd_ctl_elem_value_t * value);
|
|
|
|
snd_hctl_t *snd_hctl_elem_get_hctl(snd_hctl_elem_t *elem);
|
|
|
|
void snd_hctl_elem_get_id(const snd_hctl_elem_t *obj, snd_ctl_elem_id_t *ptr);
|
|
unsigned int snd_hctl_elem_get_numid(const snd_hctl_elem_t *obj);
|
|
snd_ctl_elem_iface_t snd_hctl_elem_get_interface(const snd_hctl_elem_t *obj);
|
|
unsigned int snd_hctl_elem_get_device(const snd_hctl_elem_t *obj);
|
|
unsigned int snd_hctl_elem_get_subdevice(const snd_hctl_elem_t *obj);
|
|
const char *snd_hctl_elem_get_name(const snd_hctl_elem_t *obj);
|
|
unsigned int snd_hctl_elem_get_index(const snd_hctl_elem_t *obj);
|
|
void snd_hctl_elem_set_callback(snd_hctl_elem_t *obj, snd_hctl_elem_callback_t val);
|
|
void * snd_hctl_elem_get_callback_private(const snd_hctl_elem_t *obj);
|
|
void snd_hctl_elem_set_callback_private(snd_hctl_elem_t *obj, void * val);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/** \} */
|
|
/** \} */
|
|
|