mirror of
https://gitee.com/openharmony/third_party_alsa-lib
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78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*
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* ALSA client/server header file
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* Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#define SND_PCM_IOCTL_MMAP_DATA _IO ('A', 0xf0)
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#define SND_PCM_IOCTL_MMAP_CONTROL _IO ('A', 0xf1)
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#define SND_PCM_IOCTL_MMAP_STATUS _IO ('A', 0xf2)
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#define SND_PCM_IOCTL_MUNMAP_DATA _IO ('A', 0xf3)
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#define SND_PCM_IOCTL_MUNMAP_CONTROL _IO ('A', 0xf4)
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#define SND_PCM_IOCTL_MUNMAP_STATUS _IO ('A', 0xf5)
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#define SND_PCM_IOCTL_CLOSE _IO ('A', 0xf6)
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typedef struct {
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int result;
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int cmd;
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union {
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snd_pcm_info_t info;
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snd_pcm_params_t params;
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snd_pcm_params_info_t params_info;
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snd_pcm_setup_t setup;
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snd_pcm_status_t status;
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int pause;
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snd_pcm_channel_info_t channel_info;
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snd_pcm_channel_params_t channel_params;
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snd_pcm_channel_setup_t channel_setup;
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off_t frame_data;
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int frame_io;
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int link;
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snd_xfer_t read;
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snd_xfer_t write;
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snd_xferv_t readv;
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snd_xferv_t writev;
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} u;
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char data[0];
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} snd_pcm_client_shm_t;
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#define PCM_SHM_SIZE 65536
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#define PCM_SHM_DATA_MAXLEN (PCM_SHM_SIZE - offsetof(snd_pcm_client_shm_t, data))
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typedef struct {
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unsigned char dev_type;
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unsigned char transport_type;
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unsigned char stream;
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unsigned char mode;
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unsigned char namelen;
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char name[0];
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} snd_client_open_request_t;
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typedef struct {
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long result;
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long cookie;
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} snd_client_open_answer_t;
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struct cmsg_fd
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{
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int len; /* sizeof structure */
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int level; /* SOL_SOCKET */
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int type; /* SCM_RIGHTS */
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int fd; /* fd to pass */
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};
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