/*

 *  ALSA client/server header file

 *  Copyright (c) 2000 by Abramo Bagnara <abramo@alsa-project.org>

 *

 *   This library is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU Lesser General Public License as

 *   published by the Free Software Foundation; either version 2.1 of

 *   the License, or (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU Lesser General Public License for more details.

 *

 *   You should have received a copy of the GNU Lesser General Public

 *   License along with this library; if not, write to the Free Software

 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 *

 */

#include <netdb.h>

#include "../src/pcm/pcm_local.h"

#include "../src/control/control_local.h"

int snd_receive_fd(int sock, void *data, size_t len, int *fd);

typedef enum _snd_dev_type {

	SND_DEV_TYPE_PCM,

	SND_DEV_TYPE_CONTROL,

	SND_DEV_TYPE_RAWMIDI,

	SND_DEV_TYPE_TIMER,

	SND_DEV_TYPE_HWDEP,

	SND_DEV_TYPE_SEQ,

} snd_dev_type_t;

typedef enum _snd_transport_type {

	SND_TRANSPORT_TYPE_SHM,

	SND_TRANSPORT_TYPE_TCP,

} snd_transport_type_t;

#define SND_PCM_IOCTL_HWSYNC		_IO ('A', 0x22)

#define SND_PCM_IOCTL_STATE		_IO ('A', 0xf1)

#define SND_PCM_IOCTL_MMAP		_IO ('A', 0xf2)

#define SND_PCM_IOCTL_MUNMAP		_IO ('A', 0xf3)

#define SND_PCM_IOCTL_MMAP_COMMIT	_IO ('A', 0xf4)

#define SND_PCM_IOCTL_AVAIL_UPDATE	_IO ('A', 0xf5)

#define SND_PCM_IOCTL_ASYNC		_IO ('A', 0xf6)

#define SND_PCM_IOCTL_CLOSE		_IO ('A', 0xf7)

#define SND_PCM_IOCTL_POLL_DESCRIPTOR	_IO ('A', 0xf8)

#define SND_PCM_IOCTL_HW_PTR_FD		_IO ('A', 0xf9)

#define SND_PCM_IOCTL_APPL_PTR_FD	_IO ('A', 0xfa)

#define SND_PCM_IOCTL_FORWARD		_IO ('A', 0xfb)

typedef struct {

	snd_pcm_uframes_t ptr;

	int use_mmap;

	off_t offset;		/* for mmap */

	int changed;

} snd_pcm_shm_rbptr_t;

typedef struct {

	long result;

	int cmd;

	snd_pcm_shm_rbptr_t hw;

	snd_pcm_shm_rbptr_t appl;

	union {

		struct {

			int sig;

			pid_t pid;

		} async;

		snd_pcm_info_t info;

		snd_pcm_hw_params_t hw_refine;

		snd_pcm_hw_params_t hw_params;

		snd_pcm_sw_params_t sw_params;

		snd_pcm_status_t status;

		struct {

			snd_pcm_uframes_t frames;

		} avail;

		struct {

			snd_pcm_sframes_t frames;

		} delay;

		struct {

			int enable;

		} pause;

		snd_pcm_channel_info_t channel_info;

		struct {

			snd_pcm_uframes_t frames;

		} rewind;

		struct {

			snd_pcm_uframes_t frames;

		} forward;

		struct {

			int fd;

		} link;

		struct {

			snd_pcm_uframes_t offset;

			snd_pcm_uframes_t frames;

		} mmap_commit;

		struct {

			char use_mmap;

			int shmid;

			off_t offset;

		} rbptr;

	} u;

	char data[0];

} snd_pcm_shm_ctrl_t;

#define PCM_SHM_SIZE sizeof(snd_pcm_shm_ctrl_t)

#define SND_CTL_IOCTL_READ		_IOR('U', 0xf1, snd_ctl_event_t)

#define SND_CTL_IOCTL_CLOSE		_IO ('U', 0xf2)

#define SND_CTL_IOCTL_POLL_DESCRIPTOR	_IO ('U', 0xf3)

#define SND_CTL_IOCTL_ASYNC		_IO ('U', 0xf4)

typedef struct {

	int result;

	int cmd;

	union {

		struct {

			int sig;

			pid_t pid;

		} async;

		int device;

		int subscribe_events;

		snd_ctl_card_info_t card_info;

		snd_ctl_elem_list_t element_list;

		snd_ctl_elem_info_t element_info;

		snd_ctl_elem_value_t element_read;

		snd_ctl_elem_value_t element_write;

		snd_ctl_elem_id_t element_lock;

		snd_ctl_elem_id_t element_unlock;

		snd_hwdep_info_t hwdep_info;

		snd_pcm_info_t pcm_info;

		int pcm_prefer_subdevice;

		snd_rawmidi_info_t rawmidi_info;

		int rawmidi_prefer_subdevice;

		unsigned int power_state;

		snd_ctl_event_t read;

	} u;

	char data[0];

} snd_ctl_shm_ctrl_t;

#define CTL_SHM_SIZE 65536

#define CTL_SHM_DATA_MAXLEN (CTL_SHM_SIZE - offsetof(snd_ctl_shm_ctrl_t, data))

typedef struct {

	unsigned char dev_type;

	unsigned char transport_type;

	unsigned char stream;

	unsigned char mode;

	unsigned char namelen;

	char name[0];

} snd_client_open_request_t;

typedef struct {

	long result;

	int cookie;

} snd_client_open_answer_t;