irq.h

Go to the documentation of this file.

/* SPDX-License-Identifier: BSD-2-Clause */
 
/*
 * Copyright (c) 1998 Eric Valette <eric.valette@free.fr>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef _IRQ_H_
#define _IRQ_H_
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <bsp/irq_asm.h>
#include <rtems.h>
#ifndef BSP_SHARED_HANDLER_SUPPORT
#define BSP_SHARED_HANDLER_SUPPORT      1
#endif
#include <rtems/irq.h>
#include <rtems/irq-extension.h>
 
/*-------------------------------------------------------------------------+
| Constants
+--------------------------------------------------------------------------*/
 
#define BSP_IRQ_VECTOR_BASE     BSP_ASM_IRQ_VECTOR_BASE
#define BSP_IRQ_LINES_NUMBER        16
#define BSP_IRQ_MAX_ON_i8259A       (BSP_IRQ_LINES_NUMBER - 1)
 
/*
 * Define the number of valid vectors. This is different to the number of IRQ
 * signals supported. Use this value to allocation vector data or range check.
 */
#define BSP_IRQ_VECTOR_NUMBER        17
#define BSP_IRQ_VECTOR_LOWEST_OFFSET 0
#define BSP_IRQ_VECTOR_MAX_OFFSET    (BSP_IRQ_VECTOR_NUMBER - 1)
 
#define BSP_PERIODIC_TIMER      0 /* fixed on all builds of PC */
#define BSP_KEYBOARD            1 /* fixed on all builds of PC */
#define BSP_UART_COM2_IRQ   3 /* fixed for ISA bus */
#define BSP_UART_COM1_IRQ   4 /* fixed for ISA bus */
#define BSP_UART_COM3_IRQ   5
#define BSP_UART_COM4_IRQ   6
#define BSP_RT_TIMER1           8
#define BSP_RT_TIMER3       10
#define BSP_SMP_IPI         16 /* not part of the ATPIC */
 
#define BSP_INTERRUPT_VECTOR_COUNT BSP_IRQ_VECTOR_NUMBER
 
typedef unsigned short rtems_i8259_masks;
 
#ifdef __cplusplus
}
#endif
 
#endif /* _IRQ_H_ */