192 lines
8.0 KiB
C
192 lines
8.0 KiB
C
#ifndef __SOUND_SEQ_KERNEL_H
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#define __SOUND_SEQ_KERNEL_H
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/*
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* Main kernel header file for the ALSA sequencer
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* Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <linux/time.h>
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#include "asequencer.h"
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typedef sndrv_seq_tick_time_t snd_seq_tick_time_t;
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typedef sndrv_seq_position_t snd_seq_position_t;
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typedef sndrv_seq_frequency_t snd_seq_frequency_t;
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typedef sndrv_seq_instr_cluster_t snd_seq_instr_cluster_t;
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typedef enum sndrv_seq_client_type snd_seq_client_type_t;
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typedef enum sndrv_seq_stop_mode snd_seq_stop_mode_t;
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typedef struct sndrv_seq_port_info snd_seq_port_info_t;
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typedef struct sndrv_seq_port_subscribe snd_seq_port_subscribe_t;
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typedef struct sndrv_seq_event snd_seq_event_t;
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typedef struct sndrv_seq_addr snd_seq_addr_t;
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typedef struct sndrv_seq_ev_volume snd_seq_ev_volume_t;
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typedef struct sndrv_seq_ev_loop snd_seq_ev_loop_t;
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typedef struct sndrv_seq_remove_events snd_seq_remove_events_t;
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typedef struct sndrv_seq_query_subs snd_seq_query_subs_t;
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typedef struct sndrv_seq_real_time snd_seq_real_time_t;
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typedef struct sndrv_seq_system_info snd_seq_system_info_t;
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typedef struct sndrv_seq_client_info snd_seq_client_info_t;
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typedef struct sndrv_seq_queue_info snd_seq_queue_info_t;
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typedef struct sndrv_seq_queue_status snd_seq_queue_status_t;
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typedef struct sndrv_seq_queue_tempo snd_seq_queue_tempo_t;
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typedef struct sndrv_seq_queue_owner snd_seq_queue_owner_t;
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typedef struct sndrv_seq_queue_timer snd_seq_queue_timer_t;
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typedef struct sndrv_seq_queue_client snd_seq_queue_client_t;
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typedef struct sndrv_seq_client_pool snd_seq_client_pool_t;
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typedef struct sndrv_seq_instr snd_seq_instr_t;
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typedef struct sndrv_seq_instr_data snd_seq_instr_data_t;
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typedef struct sndrv_seq_instr_header snd_seq_instr_header_t;
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typedef union sndrv_seq_timestamp snd_seq_timestamp_t;
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#define snd_seq_event_bounce_ext_data sndrv_seq_event_bounce_ext_data
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#define snd_seq_ev_is_result_type sndrv_seq_ev_is_result_type
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#define snd_seq_ev_is_channel_type sndrv_seq_ev_is_channel_type
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#define snd_seq_ev_is_note_type sndrv_seq_ev_is_note_type
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#define snd_seq_ev_is_control_type sndrv_seq_ev_is_control_type
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#define snd_seq_ev_is_queue_type sndrv_seq_ev_is_queue_type
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#define snd_seq_ev_is_message_type sndrv_seq_ev_is_message_type
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#define snd_seq_ev_is_sample_type sndrv_seq_ev_is_sample_type
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#define snd_seq_ev_is_user_type sndrv_seq_ev_is_user_type
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#define snd_seq_ev_is_fixed_type sndrv_seq_ev_is_fixed_type
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#define snd_seq_ev_is_instr_type sndrv_seq_ev_is_instr_type
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#define snd_seq_ev_is_variable_type sndrv_seq_ev_is_variable_type
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#define snd_seq_ev_is_reserved sndrv_seq_ev_is_reserved
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#define snd_seq_ev_is_direct sndrv_seq_ev_is_direct
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#define snd_seq_ev_is_prior sndrv_seq_ev_is_prior
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#define snd_seq_ev_length_type sndrv_seq_ev_length_type
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#define snd_seq_ev_is_fixed sndrv_seq_ev_is_fixed
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#define snd_seq_ev_is_variable sndrv_seq_ev_is_variable
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#define snd_seq_ev_is_varusr sndrv_seq_ev_is_varusr
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#define snd_seq_ev_timestamp_type sndrv_seq_ev_timestamp_type
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#define snd_seq_ev_is_tick sndrv_seq_ev_is_tick
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#define snd_seq_ev_is_real sndrv_seq_ev_is_real
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#define snd_seq_ev_timemode_type sndrv_seq_ev_timemode_type
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#define snd_seq_ev_is_abstime sndrv_seq_ev_is_abstime
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#define snd_seq_ev_is_reltime sndrv_seq_ev_is_reltime
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#define snd_seq_queue_sync_port sndrv_seq_queue_sync_port
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#define snd_seq_queue_owner sndrv_seq_queue_owner
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/* maximum number of events dequeued per schedule interval */
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#define SNDRV_SEQ_MAX_DEQUEUE 50
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/* maximum number of queues */
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#define SNDRV_SEQ_MAX_QUEUES 8
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/* max number of concurrent clients */
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#define SNDRV_SEQ_MAX_CLIENTS 192
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/* max number of concurrent ports */
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#define SNDRV_SEQ_MAX_PORTS 254
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/* max number of events in memory pool */
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#define SNDRV_SEQ_MAX_EVENTS 2000
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/* default number of events in memory chunk */
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#define SNDRV_SEQ_DEFAULT_CHUNK_EVENTS 64
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/* default number of events in memory pool */
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#define SNDRV_SEQ_DEFAULT_EVENTS 500
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/* max number of events in memory pool for one client (outqueue) */
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#define SNDRV_SEQ_MAX_CLIENT_EVENTS 2000
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/* default number of events in memory pool for one client (outqueue) */
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#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200
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/* max delivery path length */
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#define SNDRV_SEQ_MAX_HOPS 10
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/* max size of event size */
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#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff
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/* typedefs */
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struct _snd_seq_user_client;
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struct _snd_seq_kernel_client;
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struct _snd_seq_client;
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struct _snd_seq_queue;
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typedef struct _snd_seq_user_client user_client_t;
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typedef struct _snd_seq_kernel_client kernel_client_t;
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typedef struct _snd_seq_client client_t;
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typedef struct _snd_seq_queue queue_t;
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/* call-backs for kernel client */
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typedef struct {
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void *private_data;
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unsigned allow_input: 1,
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allow_output: 1;
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/*...*/
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} snd_seq_client_callback_t;
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/* call-backs for kernel port */
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typedef int (snd_seq_kernel_port_open_t)(void *private_data, snd_seq_port_subscribe_t *info);
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typedef int (snd_seq_kernel_port_close_t)(void *private_data, snd_seq_port_subscribe_t *info);
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typedef int (snd_seq_kernel_port_input_t)(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int hop);
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typedef void (snd_seq_kernel_port_private_free_t)(void *private_data);
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typedef struct {
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struct module *owner;
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void *private_data;
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snd_seq_kernel_port_open_t *subscribe;
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snd_seq_kernel_port_close_t *unsubscribe;
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snd_seq_kernel_port_open_t *use;
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snd_seq_kernel_port_close_t *unuse;
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snd_seq_kernel_port_input_t *event_input;
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snd_seq_kernel_port_private_free_t *private_free;
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unsigned int callback_all; /* call subscribe callbacks at each connection/disconnection */
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/*...*/
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} snd_seq_port_callback_t;
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/* interface for kernel client */
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extern int snd_seq_create_kernel_client(snd_card_t *card, int client_index, snd_seq_client_callback_t *callback);
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extern int snd_seq_delete_kernel_client(int client);
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extern int snd_seq_kernel_client_enqueue(int client, snd_seq_event_t *ev, int atomic, int hop);
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extern int snd_seq_kernel_client_dispatch(int client, snd_seq_event_t *ev, int atomic, int hop);
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extern int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg);
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#define SNDRV_SEQ_EXT_MASK 0xc0000000
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#define SNDRV_SEQ_EXT_USRPTR 0x80000000
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#define SNDRV_SEQ_EXT_CHAINED 0x40000000
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typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count);
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int snd_seq_expand_var_event(const snd_seq_event_t *event, int count, char *buf, int in_kernel, int size_aligned);
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int snd_seq_dump_var_event(const snd_seq_event_t *event, snd_seq_dump_func_t func, void *private_data);
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/* interface for OSS emulation */
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int snd_seq_set_queue_tempo(int client, snd_seq_queue_tempo_t *tempo);
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/* port callback routines */
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void snd_port_init_callback(snd_seq_port_callback_t *p);
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snd_seq_port_callback_t *snd_port_alloc_callback(void);
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/* port attach/detach */
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int snd_seq_event_port_attach(int client, snd_seq_port_callback_t *pcbp,
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int cap, int type, int midi_channels, int midi_voices, char *portname);
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int snd_seq_event_port_detach(int client, int port);
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#ifdef CONFIG_KMOD
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void snd_seq_autoload_lock(void);
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void snd_seq_autoload_unlock(void);
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#else
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#define snd_seq_autoload_lock()
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#define snd_seq_autoload_unlock()
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#endif
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#endif /* __SOUND_SEQ_KERNEL_H */
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