1*02e95f1aSMarcin Radomski /* pcm_io.h 2*02e95f1aSMarcin Radomski ** Copyright (c) 2019, The Linux Foundation. 3*02e95f1aSMarcin Radomski ** 4*02e95f1aSMarcin Radomski ** Redistribution and use in source and binary forms, with or without 5*02e95f1aSMarcin Radomski ** modification, are permitted provided that the following conditions are 6*02e95f1aSMarcin Radomski ** met: 7*02e95f1aSMarcin Radomski ** * Redistributions of source code must retain the above copyright 8*02e95f1aSMarcin Radomski ** notice, this list of conditions and the following disclaimer. 9*02e95f1aSMarcin Radomski ** * Redistributions in binary form must reproduce the above 10*02e95f1aSMarcin Radomski ** copyright notice, this list of conditions and the following 11*02e95f1aSMarcin Radomski ** disclaimer in the documentation and/or other materials provided 12*02e95f1aSMarcin Radomski ** with the distribution. 13*02e95f1aSMarcin Radomski ** * Neither the name of The Linux Foundation nor the names of its 14*02e95f1aSMarcin Radomski ** contributors may be used to endorse or promote products derived 15*02e95f1aSMarcin Radomski ** from this software without specific prior written permission. 16*02e95f1aSMarcin Radomski ** 17*02e95f1aSMarcin Radomski ** THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18*02e95f1aSMarcin Radomski ** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19*02e95f1aSMarcin Radomski ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20*02e95f1aSMarcin Radomski ** ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21*02e95f1aSMarcin Radomski ** BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22*02e95f1aSMarcin Radomski ** CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23*02e95f1aSMarcin Radomski ** SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24*02e95f1aSMarcin Radomski ** BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25*02e95f1aSMarcin Radomski ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26*02e95f1aSMarcin Radomski ** OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27*02e95f1aSMarcin Radomski ** IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28*02e95f1aSMarcin Radomski **/ 29*02e95f1aSMarcin Radomski 30*02e95f1aSMarcin Radomski #ifndef TINYALSA_SRC_PCM_IO_H 31*02e95f1aSMarcin Radomski #define TINYALSA_SRC_PCM_IO_H 32*02e95f1aSMarcin Radomski 33*02e95f1aSMarcin Radomski #include <poll.h> 34*02e95f1aSMarcin Radomski #include <sound/asound.h> 35*02e95f1aSMarcin Radomski 36*02e95f1aSMarcin Radomski struct snd_node; 37*02e95f1aSMarcin Radomski 38*02e95f1aSMarcin Radomski struct pcm_ops { 39*02e95f1aSMarcin Radomski int (*open) (unsigned int card, unsigned int device, 40*02e95f1aSMarcin Radomski unsigned int flags, void **data, struct snd_node *node); 41*02e95f1aSMarcin Radomski void (*close) (void *data); 42*02e95f1aSMarcin Radomski int (*ioctl) (void *data, unsigned int cmd, ...); 43*02e95f1aSMarcin Radomski void *(*mmap) (void *data, void *addr, size_t length, int prot, int flags, 44*02e95f1aSMarcin Radomski off_t offset); 45*02e95f1aSMarcin Radomski int (*munmap) (void *data, void *addr, size_t length); 46*02e95f1aSMarcin Radomski int (*poll) (void *data, struct pollfd *pfd, nfds_t nfds, int timeout); 47*02e95f1aSMarcin Radomski }; 48*02e95f1aSMarcin Radomski 49*02e95f1aSMarcin Radomski extern const struct pcm_ops hw_ops; 50*02e95f1aSMarcin Radomski extern const struct pcm_ops plug_ops; 51*02e95f1aSMarcin Radomski 52*02e95f1aSMarcin Radomski #endif /* TINYALSA_SRC_PCM_IO_H */ 53