nuttx/arch/arm/include/lpc54xx/irq.h

/********************************************************************************************
 * arch/arm/include/lpc54xx/irq.h
 *
 *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * 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.
 * 3. Neither the name NuttX nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * 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.
 *
 ********************************************************************************************/

/* This file should never be included directly but, rather,
 * only indirectly through nuttx/irq.h
 */

#ifndef __ARCH_ARM_INCLUDE_LPC54XX_IRQ_H
#define __ARCH_ARM_INCLUDE_LPC54XX_IRQ_H

/********************************************************************************************
 * Included Files
 ********************************************************************************************/

#ifndef __ASSEMBLY__
#  include <stdint.h>
#endif

/********************************************************************************************
 * Pre-processor Definitions
 ********************************************************************************************/

/* IRQ numbers.  The IRQ number corresponds vector number and hence map directly to bits in
 * the NVIC.  This does, however, waste several words of memory in the IRQ to handle mapping
 * tables.
 */

/* Processor Exceptions (vectors 0-15) */

#define LPC54_IRQ_RESERVED         (0) /* Reserved vector (only used with CONFIG_DEBUG_FEATURES) */
                                       /* Vector  0: Reset stack pointer value */
                                       /* Vector  1: Reset (not handler as an IRQ) */
#define LPC54_IRQ_NMI              (2) /* Vector  2: Non-Maskable Interrupt (NMI) */
#define LPC54_IRQ_HARDFAULT        (3) /* Vector  3: Hard fault */
#define LPC54_IRQ_MEMFAULT         (4) /* Vector  4: Memory management (MPU) */
#define LPC54_IRQ_BUSFAULT         (5) /* Vector  5: Bus fault */
#define LPC54_IRQ_USAGEFAULT       (6) /* Vector  6: Usage fault */
#define LPC54_IRQ_SIGNVALUE        (7) /* Vector  7: Sign value */
#define LPC54_IRQ_SVCALL          (11) /* Vector 11: SVC call */
#define LPC54_IRQ_DBGMONITOR      (12) /* Vector 12: Debug Monitor */
                                       /* Vector 13: Reserved */
#define LPC54_IRQ_PENDSV          (14) /* Vector 14: Pendable system service request */
#define LPC54_IRQ_SYSTICK         (15) /* Vector 15: System tick */
#define LPC54_IRQ_EXTINT          (16) /* Vector 16: Vector number of the first external interrupt */

/* Cortex-M4 External interrupts (vectors >= 16) */

#if defined(CONFIG_ARCH_FAMILY_LPC546XX)
#  include <arch/lpc54xx/lpc546x_irq.h>
#else
#  error "Unsupported LPC54 MCU"
#endif

/********************************************************************************************
 * Public Types
 ********************************************************************************************/

#ifndef __ASSEMBLY__
typedef void (*vic_vector_t)(uint32_t *regs);

/********************************************************************************************
 * Public Function Prototypes
 ********************************************************************************************/

#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif

#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif

#endif /* __ARCH_ARM_INCLUDE_LPC54XX_IRQ_H */