nuttx/arch/arm/include/nrf52/chip.h

/****************************************************************************
 * arch/arm/include/nrf52/chip.h
 *
 *   Copyright (C) 2018 Gregory Nutt. All rights reserved.
 *   Author: Janne Rosberg <janne@offcode.fi>
 *
 * 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.
 *
 ****************************************************************************/

#ifndef __ARCH_ARM_INCLUDE_NRF52_CHIP_H
#define __ARCH_ARM_INCLUDE_NRF52_CHIP_H

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

#include <nuttx/config.h>

/****************************************************************************
 * Pre-processor Prototypes
 ****************************************************************************/

/* NVIC priority levels *****************************************************/

/* Each priority field holds a priority value, 0-31. The lower the value,
 * the greater the priority of the corresponding interrupt.
 *
 * The Cortex-M4 core supports 8 programmable interrupt priority levels.
 */

#define NVIC_SYSH_PRIORITY_MIN          0xe0 /* All bits[7:5] set is minimum priority */
#define NVIC_SYSH_PRIORITY_DEFAULT      0x80 /* Midpoint is the default */
#define NVIC_SYSH_PRIORITY_MAX          0x00 /* Zero is maximum priority */
#define NVIC_SYSH_PRIORITY_STEP         0x20 /* Steps between priorities */

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

/****************************************************************************
 * Public Data
 ****************************************************************************/

/****************************************************************************
 * Public Functions Prototypes
 ****************************************************************************/

#endif /* __ARCH_ARM_INCLUDE_NRF52_CHIP_H */