Blame include/aserver.h

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/*
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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 Lesser General Public License as
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 *   published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
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 *
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 *   You should have received a copy of the GNU Lesser General Public
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 *   License along with this library; if not, write to the Free Software
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 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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 *
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 */
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#include <netdb.h>
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#include "../src/pcm/pcm_local.h"
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#include "../src/control/control_local.h"
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int snd_receive_fd(int sock, void *data, size_t len, int *fd);
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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_HWSYNC		_IO ('A', 0x22)
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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_COMMIT	_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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#define SND_PCM_IOCTL_HW_PTR_FD		_IO ('A', 0xf9)
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#define SND_PCM_IOCTL_APPL_PTR_FD	_IO ('A', 0xfa)
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#define SND_PCM_IOCTL_FORWARD		_IO ('A', 0xfb)
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typedef struct {
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	snd_pcm_uframes_t ptr;
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	int use_mmap;
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	off_t offset;		/* for mmap */
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	int changed;
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} snd_pcm_shm_rbptr_t;
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typedef struct {
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	long result;
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	int cmd;
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	snd_pcm_shm_rbptr_t hw;
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	snd_pcm_shm_rbptr_t appl;
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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_uframes_t frames;
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		} avail;
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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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			snd_pcm_uframes_t frames;
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		} forward;
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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 offset;
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			snd_pcm_uframes_t frames;
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		} mmap_commit;
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		struct {
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			char use_mmap;
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			int shmid;
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			off_t offset;
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		} rbptr;
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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_ctl_elem_id_t element_lock;
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		snd_ctl_elem_id_t element_unlock;
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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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		unsigned int power_state;
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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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