mirror of
https://gitee.com/openharmony/third_party_alsa-lib
synced 2024-11-27 01:31:08 +00:00
131 lines
3.3 KiB
C
131 lines
3.3 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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#include "../src/pcm/pcm_local.h"
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#include "../src/control/control_local.h"
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typedef enum _snd_dev_type {
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SND_DEV_TYPE_PCM,
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SND_DEV_TYPE_CONTROL,
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SND_DEV_TYPE_RAWMIDI,
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SND_DEV_TYPE_TIMER,
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SND_DEV_TYPE_HWDEP,
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SND_DEV_TYPE_SEQ,
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} snd_dev_type_t;
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typedef enum _snd_transport_type {
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SND_TRANSPORT_TYPE_SHM,
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SND_TRANSPORT_TYPE_TCP,
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} snd_transport_type_t;
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#define SND_PCM_IOCTL_STATE _IO ('A', 0xf1)
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#define SND_PCM_IOCTL_MMAP _IO ('A', 0xf2)
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#define SND_PCM_IOCTL_MUNMAP _IO ('A', 0xf3)
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#define SND_PCM_IOCTL_MMAP_FORWARD _IO ('A', 0xf4)
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#define SND_PCM_IOCTL_AVAIL_UPDATE _IO ('A', 0xf5)
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#define SND_PCM_IOCTL_ASYNC _IO ('A', 0xf6)
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#define SND_PCM_IOCTL_CLOSE _IO ('A', 0xf7)
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#define SND_PCM_IOCTL_POLL_DESCRIPTOR _IO ('A', 0xf8)
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typedef struct {
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long result;
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int cmd;
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snd_pcm_uframes_t hw_ptr;
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snd_pcm_uframes_t appl_ptr;
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union {
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struct {
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int sig;
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pid_t pid;
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} async;
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snd_pcm_info_t info;
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snd_pcm_hw_params_t hw_refine;
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snd_pcm_hw_params_t hw_params;
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snd_pcm_sw_params_t sw_params;
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snd_pcm_status_t status;
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struct {
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snd_pcm_sframes_t frames;
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} delay;
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struct {
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int enable;
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} pause;
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snd_pcm_channel_info_t channel_info;
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struct {
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snd_pcm_uframes_t frames;
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} rewind;
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struct {
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int fd;
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} link;
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struct {
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snd_pcm_uframes_t frames;
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} mmap_forward;
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} u;
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char data[0];
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} snd_pcm_shm_ctrl_t;
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#define PCM_SHM_SIZE sizeof(snd_pcm_shm_ctrl_t)
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#define SND_CTL_IOCTL_READ _IOR('U', 0xf1, snd_ctl_event_t)
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#define SND_CTL_IOCTL_CLOSE _IO ('U', 0xf2)
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#define SND_CTL_IOCTL_POLL_DESCRIPTOR _IO ('U', 0xf3)
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#define SND_CTL_IOCTL_ASYNC _IO ('U', 0xf4)
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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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struct {
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int sig;
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pid_t pid;
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} async;
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int device;
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int subscribe_events;
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snd_ctl_card_info_t card_info;
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snd_ctl_elem_list_t element_list;
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snd_ctl_elem_info_t element_info;
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snd_ctl_elem_value_t element_read;
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snd_ctl_elem_value_t element_write;
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snd_hwdep_info_t hwdep_info;
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snd_pcm_info_t pcm_info;
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int pcm_prefer_subdevice;
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snd_rawmidi_info_t rawmidi_info;
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int rawmidi_prefer_subdevice;
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snd_ctl_event_t read;
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} u;
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char data[0];
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} snd_ctl_shm_ctrl_t;
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#define CTL_SHM_SIZE 65536
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#define CTL_SHM_DATA_MAXLEN (CTL_SHM_SIZE - offsetof(snd_ctl_shm_ctrl_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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int cookie;
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} snd_client_open_answer_t;
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