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Diffstat (limited to 'include/sound/seq_kernel.h')
| -rw-r--r-- | include/sound/seq_kernel.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h new file mode 100644 index 000000000000..4beca1952c76 --- /dev/null +++ b/include/sound/seq_kernel.h @@ -0,0 +1,191 @@ +#ifndef __SOUND_SEQ_KERNEL_H +#define __SOUND_SEQ_KERNEL_H + +/* + * Main kernel header file for the ALSA sequencer + * Copyright (c) 1998 by Frank van de Pol <fvdpol@coil.demon.nl> + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#include <linux/time.h> +#include "asequencer.h" + +typedef sndrv_seq_tick_time_t snd_seq_tick_time_t; +typedef sndrv_seq_position_t snd_seq_position_t; +typedef sndrv_seq_frequency_t snd_seq_frequency_t; +typedef sndrv_seq_instr_cluster_t snd_seq_instr_cluster_t; +typedef enum sndrv_seq_client_type snd_seq_client_type_t; +typedef enum sndrv_seq_stop_mode snd_seq_stop_mode_t; +typedef struct sndrv_seq_port_info snd_seq_port_info_t; +typedef struct sndrv_seq_port_subscribe snd_seq_port_subscribe_t; +typedef struct sndrv_seq_event snd_seq_event_t; +typedef struct sndrv_seq_addr snd_seq_addr_t; +typedef struct sndrv_seq_ev_volume snd_seq_ev_volume_t; +typedef struct sndrv_seq_ev_loop snd_seq_ev_loop_t; +typedef struct sndrv_seq_remove_events snd_seq_remove_events_t; +typedef struct sndrv_seq_query_subs snd_seq_query_subs_t; +typedef struct sndrv_seq_real_time snd_seq_real_time_t; +typedef struct sndrv_seq_system_info snd_seq_system_info_t; +typedef struct sndrv_seq_client_info snd_seq_client_info_t; +typedef struct sndrv_seq_queue_info snd_seq_queue_info_t; +typedef struct sndrv_seq_queue_status snd_seq_queue_status_t; +typedef struct sndrv_seq_queue_tempo snd_seq_queue_tempo_t; +typedef struct sndrv_seq_queue_owner snd_seq_queue_owner_t; +typedef struct sndrv_seq_queue_timer snd_seq_queue_timer_t; +typedef struct sndrv_seq_queue_client snd_seq_queue_client_t; +typedef struct sndrv_seq_client_pool snd_seq_client_pool_t; +typedef struct sndrv_seq_instr snd_seq_instr_t; +typedef struct sndrv_seq_instr_data snd_seq_instr_data_t; +typedef struct sndrv_seq_instr_header snd_seq_instr_header_t; +typedef union sndrv_seq_timestamp snd_seq_timestamp_t; + +#define snd_seq_event_bounce_ext_data sndrv_seq_event_bounce_ext_data +#define snd_seq_ev_is_result_type sndrv_seq_ev_is_result_type +#define snd_seq_ev_is_channel_type sndrv_seq_ev_is_channel_type +#define snd_seq_ev_is_note_type sndrv_seq_ev_is_note_type +#define snd_seq_ev_is_control_type sndrv_seq_ev_is_control_type +#define snd_seq_ev_is_queue_type sndrv_seq_ev_is_queue_type +#define snd_seq_ev_is_message_type sndrv_seq_ev_is_message_type +#define snd_seq_ev_is_sample_type sndrv_seq_ev_is_sample_type +#define snd_seq_ev_is_user_type sndrv_seq_ev_is_user_type +#define snd_seq_ev_is_fixed_type sndrv_seq_ev_is_fixed_type +#define snd_seq_ev_is_instr_type sndrv_seq_ev_is_instr_type +#define snd_seq_ev_is_variable_type sndrv_seq_ev_is_variable_type +#define snd_seq_ev_is_reserved sndrv_seq_ev_is_reserved +#define snd_seq_ev_is_direct sndrv_seq_ev_is_direct +#define snd_seq_ev_is_prior sndrv_seq_ev_is_prior +#define snd_seq_ev_length_type sndrv_seq_ev_length_type +#define snd_seq_ev_is_fixed sndrv_seq_ev_is_fixed +#define snd_seq_ev_is_variable sndrv_seq_ev_is_variable +#define snd_seq_ev_is_varusr sndrv_seq_ev_is_varusr +#define snd_seq_ev_timestamp_type sndrv_seq_ev_timestamp_type +#define snd_seq_ev_is_tick sndrv_seq_ev_is_tick +#define snd_seq_ev_is_real sndrv_seq_ev_is_real +#define snd_seq_ev_timemode_type sndrv_seq_ev_timemode_type +#define snd_seq_ev_is_abstime sndrv_seq_ev_is_abstime +#define snd_seq_ev_is_reltime sndrv_seq_ev_is_reltime +#define snd_seq_queue_sync_port sndrv_seq_queue_sync_port +#define snd_seq_queue_owner sndrv_seq_queue_owner + +/* maximum number of events dequeued per schedule interval */ +#define SNDRV_SEQ_MAX_DEQUEUE 50 + +/* maximum number of queues */ +#define SNDRV_SEQ_MAX_QUEUES 8 + +/* max number of concurrent clients */ +#define SNDRV_SEQ_MAX_CLIENTS 192 + +/* max number of concurrent ports */ +#define SNDRV_SEQ_MAX_PORTS 254 + +/* max number of events in memory pool */ +#define SNDRV_SEQ_MAX_EVENTS 2000 + +/* default number of events in memory chunk */ +#define SNDRV_SEQ_DEFAULT_CHUNK_EVENTS 64 + +/* default number of events in memory pool */ +#define SNDRV_SEQ_DEFAULT_EVENTS 500 + +/* max number of events in memory pool for one client (outqueue) */ +#define SNDRV_SEQ_MAX_CLIENT_EVENTS 2000 + +/* default number of events in memory pool for one client (outqueue) */ +#define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS 200 + +/* max delivery path length */ +#define SNDRV_SEQ_MAX_HOPS 10 + +/* max size of event size */ +#define SNDRV_SEQ_MAX_EVENT_LEN 0x3fffffff + +/* typedefs */ +struct _snd_seq_user_client; +struct _snd_seq_kernel_client; +struct _snd_seq_client; +struct _snd_seq_queue; + +typedef struct _snd_seq_user_client user_client_t; +typedef struct _snd_seq_kernel_client kernel_client_t; +typedef struct _snd_seq_client client_t; +typedef struct _snd_seq_queue queue_t; + +/* call-backs for kernel client */ + +typedef struct { + void *private_data; + unsigned allow_input: 1, + allow_output: 1; + /*...*/ +} snd_seq_client_callback_t; + +/* call-backs for kernel port */ +typedef int (snd_seq_kernel_port_open_t)(void *private_data, snd_seq_port_subscribe_t *info); +typedef int (snd_seq_kernel_port_close_t)(void *private_data, snd_seq_port_subscribe_t *info); +typedef int (snd_seq_kernel_port_input_t)(snd_seq_event_t *ev, int direct, void *private_data, int atomic, int hop); +typedef void (snd_seq_kernel_port_private_free_t)(void *private_data); + +typedef struct { + struct module *owner; + void *private_data; + snd_seq_kernel_port_open_t *subscribe; + snd_seq_kernel_port_close_t *unsubscribe; + snd_seq_kernel_port_open_t *use; + snd_seq_kernel_port_close_t *unuse; + snd_seq_kernel_port_input_t *event_input; + snd_seq_kernel_port_private_free_t *private_free; + unsigned int callback_all; /* call subscribe callbacks at each connection/disconnection */ + /*...*/ +} snd_seq_port_callback_t; + +/* interface for kernel client */ +extern int snd_seq_create_kernel_client(snd_card_t *card, int client_index, snd_seq_client_callback_t *callback); +extern int snd_seq_delete_kernel_client(int client); +extern int snd_seq_kernel_client_enqueue(int client, snd_seq_event_t *ev, int atomic, int hop); +extern int snd_seq_kernel_client_dispatch(int client, snd_seq_event_t *ev, int atomic, int hop); +extern int snd_seq_kernel_client_ctl(int client, unsigned int cmd, void *arg); + +#define SNDRV_SEQ_EXT_MASK 0xc0000000 +#define SNDRV_SEQ_EXT_USRPTR 0x80000000 +#define SNDRV_SEQ_EXT_CHAINED 0x40000000 + +typedef int (*snd_seq_dump_func_t)(void *ptr, void *buf, int count); +int snd_seq_expand_var_event(const snd_seq_event_t *event, int count, char *buf, int in_kernel, int size_aligned); +int snd_seq_dump_var_event(const snd_seq_event_t *event, snd_seq_dump_func_t func, void *private_data); + +/* interface for OSS emulation */ +int snd_seq_set_queue_tempo(int client, snd_seq_queue_tempo_t *tempo); + +/* port callback routines */ +void snd_port_init_callback(snd_seq_port_callback_t *p); +snd_seq_port_callback_t *snd_port_alloc_callback(void); + +/* port attach/detach */ +int snd_seq_event_port_attach(int client, snd_seq_port_callback_t *pcbp, + int cap, int type, int midi_channels, int midi_voices, char *portname); +int snd_seq_event_port_detach(int client, int port); + +#ifdef CONFIG_KMOD +void snd_seq_autoload_lock(void); +void snd_seq_autoload_unlock(void); +#else +#define snd_seq_autoload_lock() +#define snd_seq_autoload_unlock() +#endif + +#endif /* __SOUND_SEQ_KERNEL_H */ |