irq-extension.h

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/*
 * Based on concepts of Pavel Pisa, Till Straumann and Eric Valette.
 *
 * Copyright (c) 2008, 2017 embedded brains GmbH.
 *
 *  embedded brains GmbH
 *  Dornierstr. 4
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifndef RTEMS_IRQ_EXTENSION_H
#define RTEMS_IRQ_EXTENSION_H

#include <rtems.h>
#include <rtems/chain.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#define RTEMS_INTERRUPT_UNIQUE ((rtems_option) 0x00000001)

#define RTEMS_INTERRUPT_SHARED ((rtems_option) 0x00000000)

#define RTEMS_INTERRUPT_REPLACE ((rtems_option) 0x00000002)

#define RTEMS_INTERRUPT_IS_UNIQUE( options) \
  ((options) & RTEMS_INTERRUPT_UNIQUE)

#define RTEMS_INTERRUPT_IS_SHARED( options) \
  (!RTEMS_INTERRUPT_IS_UNIQUE( options))

#define RTEMS_INTERRUPT_IS_REPLACE( options) \
  ((options) & RTEMS_INTERRUPT_REPLACE)

typedef void (*rtems_interrupt_handler)(void *);

rtems_status_code rtems_interrupt_handler_install(
  rtems_vector_number vector,
  const char *info,
  rtems_option options,
  rtems_interrupt_handler handler,
  void *arg
);

rtems_status_code rtems_interrupt_handler_remove(
  rtems_vector_number vector,
  rtems_interrupt_handler handler,
  void *arg
);

typedef void (*rtems_interrupt_per_handler_routine)(
  void *, const char *, rtems_option, rtems_interrupt_handler, void *
);

rtems_status_code rtems_interrupt_handler_iterate(
  rtems_vector_number vector,
  rtems_interrupt_per_handler_routine routine,
  void *arg
);

rtems_status_code rtems_interrupt_set_affinity(
  rtems_vector_number  vector,
  size_t               affinity_size,
  const cpu_set_t     *affinity
);

rtems_status_code rtems_interrupt_get_affinity(
  rtems_vector_number  vector,
  size_t               affinity_size,
  cpu_set_t           *affinity
);

typedef struct rtems_interrupt_server_action {
  struct rtems_interrupt_server_action *next;
  rtems_interrupt_handler               handler;
  void                                 *arg;
} rtems_interrupt_server_action;

#define RTEMS_INTERRUPT_SERVER_DEFAULT 0

typedef struct {
  rtems_chain_node               node;
  void                          *server;
  rtems_vector_number            vector;
  rtems_interrupt_server_action *actions;
} rtems_interrupt_server_entry;

typedef struct {
  rtems_interrupt_server_entry  entry;
  rtems_interrupt_server_action action;
} rtems_interrupt_server_request;

rtems_status_code rtems_interrupt_server_initialize(
  rtems_task_priority priority,
  size_t stack_size,
  rtems_mode modes,
  rtems_attribute attributes,
  uint32_t *server_count
);

rtems_status_code rtems_interrupt_server_handler_install(
  uint32_t server_index,
  rtems_vector_number vector,
  const char *info,
  rtems_option options,
  rtems_interrupt_handler handler,
  void *arg
);

rtems_status_code rtems_interrupt_server_handler_remove(
  uint32_t server_index,
  rtems_vector_number vector,
  rtems_interrupt_handler handler,
  void *arg
);

rtems_status_code rtems_interrupt_server_handler_iterate(
  uint32_t server_index,
  rtems_vector_number vector,
  rtems_interrupt_per_handler_routine routine,
  void *arg
);

rtems_status_code rtems_interrupt_server_move(
  uint32_t            source_server_index,
  rtems_vector_number vector,
  uint32_t            destination_server_index
);

rtems_status_code rtems_interrupt_server_suspend( uint32_t server_index );

rtems_status_code rtems_interrupt_server_resume( uint32_t server_index );

rtems_status_code rtems_interrupt_server_set_affinity(
  uint32_t            server_index,
  size_t              affinity_size,
  const cpu_set_t    *affinity,
  rtems_task_priority priority
);

rtems_status_code rtems_interrupt_server_entry_initialize(
  uint32_t                      server_index,
  rtems_interrupt_server_entry *entry
);

void rtems_interrupt_server_action_prepend(
  rtems_interrupt_server_entry  *entry,
  rtems_interrupt_server_action *action,
  rtems_interrupt_handler        handler,
  void                          *arg
);

void rtems_interrupt_server_entry_submit(
  rtems_interrupt_server_entry *entry
);

void rtems_interrupt_server_entry_destroy(
  rtems_interrupt_server_entry *entry
);

rtems_status_code rtems_interrupt_server_request_initialize(
  uint32_t                        server_index,
  rtems_interrupt_server_request *request,
  rtems_interrupt_handler         handler,
  void                           *arg
);

RTEMS_INLINE_ROUTINE void rtems_interrupt_server_request_set_vector(
  rtems_interrupt_server_request *request,
  rtems_vector_number             vector
)
{
  request->entry.vector = vector;
}

RTEMS_INLINE_ROUTINE void rtems_interrupt_server_request_submit(
  rtems_interrupt_server_request *request
)
{
  rtems_interrupt_server_entry_submit( &request->entry );
}

RTEMS_INLINE_ROUTINE void rtems_interrupt_server_request_destroy(
  rtems_interrupt_server_request *request
)
{
  rtems_interrupt_server_entry_destroy( &request->entry );
}

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* RTEMS_IRQ_EXTENSION_H */