mirror of
https://github.com/alsa-project/alsa-lib.git
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86 lines
3.3 KiB
C
86 lines
3.3 KiB
C
/****************************************************************************
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* *
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* hwdep.h *
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* Hardware depedent interface *
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* *
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****************************************************************************/
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/**
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* \defgroup HwDep Hardware Dependant Interface
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* The Hardware Dependant Interface.
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* \{
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*/
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/** dlsym version for interface entry callback */
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#define SND_HWDEP_DLSYM_VERSION _dlsym_hwdep_001
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/** HwDep information container */
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typedef struct _snd_hwdep_info snd_hwdep_info_t;
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/** HwDep interface */
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typedef enum _snd_hwdep_iface {
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SND_HWDEP_IFACE_OPL2 = 0, /**< OPL2 raw driver */
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SND_HWDEP_IFACE_OPL3, /**< OPL3 raw driver */
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SND_HWDEP_IFACE_OPL4, /**< OPL4 raw driver */
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SND_HWDEP_IFACE_SB16CSP, /**< SB16CSP driver */
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SND_HWDEP_IFACE_EMU10K1, /**< EMU10K1 driver */
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SND_HWDEP_IFACE_YSS225, /**< YSS225 driver */
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SND_HWDEP_IFACE_ICS2115, /**< ICS2115 driver */
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SND_HWDEP_IFACE_LAST = SND_HWDEP_IFACE_ICS2115, /**< last know hwdep interface */
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} snd_hwdep_iface_t;
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/** open for reading */
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#define SND_HWDEP_OPEN_READ (O_RDONLY)
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/** open for writing */
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#define SND_HWDEP_OPEN_WRITE (O_WRONLY)
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/** open for reading and writing */
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#define SND_HWDEP_OPEN_DUPLEX (O_RDWR)
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/** flag: open in nonblock mode */
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#define SND_HWDEP_OPEN_NONBLOCK (O_NONBLOCK)
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/** HwDep handle type */
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typedef enum _snd_hwdep_type {
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/** Kernel level HwDep */
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SND_HWDEP_TYPE_HW,
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/** Shared memory client HwDep (not yet implemented) */
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SND_HWDEP_TYPE_SHM,
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/** INET client HwDep (not yet implemented) */
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SND_HWDEP_TYPE_INET,
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} snd_hwdep_type_t;
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/** HwDep handle */
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typedef struct _snd_hwdep snd_hwdep_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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int snd_hwdep_open(snd_hwdep_t **hwdep, const char *name, int mode);
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int snd_hwdep_close(snd_hwdep_t *hwdep);
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int snd_hwdep_poll_descriptors(snd_hwdep_t *hwdep, struct pollfd *pfds, unsigned int space);
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int snd_hwdep_nonblock(snd_hwdep_t *hwdep, int nonblock);
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int snd_hwdep_info(snd_hwdep_t *hwdep, snd_hwdep_info_t * info);
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int snd_hwdep_ioctl(snd_hwdep_t *hwdep, unsigned int request, void * arg);
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ssize_t snd_hwdep_write(snd_hwdep_t *hwdep, const void *buffer, size_t size);
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ssize_t snd_hwdep_read(snd_hwdep_t *hwdep, void *buffer, size_t size);
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size_t snd_hwdep_info_sizeof(void);
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/** allocate #snd_hwdep_info_t container on stack */
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#define snd_hwdep_info_alloca(ptr) do { assert(ptr); *ptr = (snd_hwdep_info_t *) alloca(snd_hwdep_info_sizeof()); memset(*ptr, 0, snd_hwdep_info_sizeof()); } while (0)
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int snd_hwdep_info_malloc(snd_hwdep_info_t **ptr);
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void snd_hwdep_info_free(snd_hwdep_info_t *obj);
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void snd_hwdep_info_copy(snd_hwdep_info_t *dst, const snd_hwdep_info_t *src);
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unsigned int snd_hwdep_info_get_device(const snd_hwdep_info_t *obj);
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int snd_hwdep_info_get_card(const snd_hwdep_info_t *obj);
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const char *snd_hwdep_info_get_id(const snd_hwdep_info_t *obj);
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const char *snd_hwdep_info_get_name(const snd_hwdep_info_t *obj);
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snd_hwdep_iface_t snd_hwdep_info_get_iface(const snd_hwdep_info_t *obj);
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void snd_hwdep_info_set_device(snd_hwdep_info_t *obj, unsigned int val);
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#ifdef __cplusplus
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}
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#endif
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/** \} */
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