1*d20001a8Sjsg /* $OpenBSD: sio_priv.h,v 1.12 2024/05/21 06:07:06 jsg Exp $ */ 2b041ccb2Sratchov /* 3b041ccb2Sratchov * Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org> 4b041ccb2Sratchov * 5b041ccb2Sratchov * Permission to use, copy, modify, and distribute this software for any 6b041ccb2Sratchov * purpose with or without fee is hereby granted, provided that the above 7b041ccb2Sratchov * copyright notice and this permission notice appear in all copies. 8b041ccb2Sratchov * 9b041ccb2Sratchov * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10b041ccb2Sratchov * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11b041ccb2Sratchov * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12b041ccb2Sratchov * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13b041ccb2Sratchov * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14b041ccb2Sratchov * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15b041ccb2Sratchov * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16b041ccb2Sratchov */ 17b041ccb2Sratchov #ifndef SNDIO_PRIV_H 18b041ccb2Sratchov #define SNDIO_PRIV_H 19b041ccb2Sratchov 20b041ccb2Sratchov #include "sndio.h" 21b041ccb2Sratchov 22334268a5Sratchov #define SIO_MAXNFDS 16 2320fb3e8cSratchov 24b041ccb2Sratchov /* 25b041ccb2Sratchov * private ``handle'' structure 26b041ccb2Sratchov */ 27b041ccb2Sratchov struct sio_hdl { 28b041ccb2Sratchov struct sio_ops *ops; 29b041ccb2Sratchov void (*move_cb)(void *, int); /* call-back for realpos changes */ 30b041ccb2Sratchov void *move_addr; /* user priv. data for move_cb */ 31b041ccb2Sratchov void (*vol_cb)(void *, unsigned); /* call-back for volume changes */ 32b041ccb2Sratchov void *vol_addr; /* user priv. data for vol_cb */ 33b041ccb2Sratchov unsigned mode; /* SIO_PLAY | SIO_REC */ 34b041ccb2Sratchov int started; /* true if started */ 35b041ccb2Sratchov int nbio; /* true if non-blocking io */ 362c53affbSjmc int eof; /* true if error occurred */ 37ea382012Sratchov int rdrop; /* recorded bytes to drop */ 38ea382012Sratchov int wsil; /* silence to play */ 39e6877796Sratchov int rused; /* bytes used in read buffer */ 40e6877796Sratchov int wused; /* bytes used in write buffer */ 41e6877796Sratchov long long cpos; /* clock since start */ 42e6877796Sratchov struct sio_par par; 43b041ccb2Sratchov #ifdef DEBUG 44b041ccb2Sratchov unsigned long long pollcnt; /* times sio_revents was called */ 45ea382012Sratchov long long start_nsec; 46b041ccb2Sratchov #endif 47b041ccb2Sratchov }; 48b041ccb2Sratchov 49b041ccb2Sratchov /* 50b041ccb2Sratchov * operations every device should support 51b041ccb2Sratchov */ 52b041ccb2Sratchov struct sio_ops { 53b041ccb2Sratchov void (*close)(struct sio_hdl *); 54b041ccb2Sratchov int (*setpar)(struct sio_hdl *, struct sio_par *); 55b041ccb2Sratchov int (*getpar)(struct sio_hdl *, struct sio_par *); 56b041ccb2Sratchov int (*getcap)(struct sio_hdl *, struct sio_cap *); 57b041ccb2Sratchov size_t (*write)(struct sio_hdl *, const void *, size_t); 58b041ccb2Sratchov size_t (*read)(struct sio_hdl *, void *, size_t); 59b041ccb2Sratchov int (*start)(struct sio_hdl *); 60b041ccb2Sratchov int (*stop)(struct sio_hdl *); 61ec8a3410Sratchov int (*flush)(struct sio_hdl *); 62b041ccb2Sratchov int (*nfds)(struct sio_hdl *); 63b041ccb2Sratchov int (*pollfd)(struct sio_hdl *, struct pollfd *, int); 64b041ccb2Sratchov int (*revents)(struct sio_hdl *, struct pollfd *); 65b041ccb2Sratchov int (*setvol)(struct sio_hdl *, unsigned); 66b041ccb2Sratchov void (*getvol)(struct sio_hdl *); 67b041ccb2Sratchov }; 68b041ccb2Sratchov 69d418f94bSratchov struct sio_hdl *_sio_aucat_open(const char *, unsigned, int); 70d418f94bSratchov struct sio_hdl *_sio_sun_open(const char *, unsigned, int); 71d418f94bSratchov void _sio_create(struct sio_hdl *, struct sio_ops *, unsigned, int); 72d418f94bSratchov void _sio_onmove_cb(struct sio_hdl *, int); 73d418f94bSratchov void _sio_onvol_cb(struct sio_hdl *, unsigned); 74ea382012Sratchov #ifdef DEBUG 75d418f94bSratchov void _sio_printpos(struct sio_hdl *); 76ea382012Sratchov #endif 77b041ccb2Sratchov 78b041ccb2Sratchov #endif /* !defined(SNDIO_PRIV_H) */ 79