/************************************************************************************************
* arch/arm/src/lpc31xx/lpc31_intc.h
*
* Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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_SRC_LPC31XX_LPC31_INTC_H
#define __ARCH_ARM_SRC_LPC31XX_LPC31_INTC_H
/************************************************************************************************
* Included Files
************************************************************************************************/
#include <nuttx/config.h>
#include "lpc31_memorymap.h"
/************************************************************************************************
* Pre-processor Definitions
************************************************************************************************/
/* INTC register base address *******************************************************************/
#define LPC31_INTC_VBASE (LPC31_INTC_VSECTION)
#define LPC31_INTC_PBASE (LPC31_INTC_PSECTION)
/* INTC register offsets (with respect to the base of the INTC domain) **************************/
#define LPC31_INTC_PRIORITYMASK0_OFFSET 0x000 /* Interrupt target 0 priority threshold */
#define LPC31_INTC_PRIORITYMASK1_OFFSET 0x004 /* Interrupt target 0 priority threshold */
#define LPC31_INTC_VECTOR0_OFFSET 0x100 /* Vector register for target 0 => nIRQ */
#define LPC31_INTC_VECTOR1_OFFSET 0x104 /* Vector register for target 1 => nFIQ */
#define LPC31_INTC_PENDING_OFFSET 0x200 /* Status of interrupt request 1..29 */
#define LPC31_INTC_FEATURES_OFFSET 0x300 /* Interrupt controller configuration */
#define LPC31_INTC_REQUEST_OFFSET(n) (0x400+((n) << 2))
#define LPC31_INTC_REQUEST1_OFFSET 0x404 /* Interrupt request 1 configuration */
#define LPC31_INTC_REQUEST2_OFFSET 0x408 /* Interrupt request 2 configuration */
#define LPC31_INTC_REQUEST3_OFFSET 0x40c /* Interrupt request 3 configuration */
#define LPC31_INTC_REQUEST4_OFFSET 0x410 /* Interrupt request 4 configuration */
#define LPC31_INTC_REQUEST5_OFFSET 0x414 /* Interrupt request 5 configuration */
#define LPC31_INTC_REQUEST6_OFFSET 0x418 /* Interrupt request 6 configuration */
#define LPC31_INTC_REQUEST7_OFFSET 0x41c /* Interrupt request 7 configuration */
#define LPC31_INTC_REQUEST8_OFFSET 0x420 /* Interrupt request 8 configuration */
#define LPC31_INTC_REQUEST9_OFFSET 0x424 /* Interrupt request 9 configuration */
#define LPC31_INTC_REQUEST10_OFFSET 0x428 /* Interrupt request 10 configuration */
#define LPC31_INTC_REQUEST11_OFFSET 0x42c /* Interrupt request 11 configuration */
#define LPC31_INTC_REQUEST12_OFFSET 0x430 /* Interrupt request 12 configuration */
#define LPC31_INTC_REQUEST13_OFFSET 0x434 /* Interrupt request 13 configuration */
#define LPC31_INTC_REQUEST14_OFFSET 0x438 /* Interrupt request 14 configuration */
#define LPC31_INTC_REQUEST15_OFFSET 0x43c /* Interrupt request 15 configuration */
#define LPC31_INTC_REQUEST16_OFFSET 0x440 /* Interrupt request 16 configuration */
#define LPC31_INTC_REQUEST17_OFFSET 0x444 /* Interrupt request 17 configuration */
#define LPC31_INTC_REQUEST18_OFFSET 0x448 /* Interrupt request 18 configuration */
#define LPC31_INTC_REQUEST19_OFFSET 0x44c /* Interrupt request 19 configuration */
#define LPC31_INTC_REQUEST20_OFFSET 0x450 /* Interrupt request 20 configuration */
#define LPC31_INTC_REQUEST21_OFFSET 0x454 /* Interrupt request 21 configuration */
#define LPC31_INTC_REQUEST22_OFFSET 0x458 /* Interrupt request 22 configuration */
#define LPC31_INTC_REQUEST23_OFFSET 0x45c /* Interrupt request 23 configuration */
#define LPC31_INTC_REQUEST24_OFFSET 0x460 /* Interrupt request 24 configuration */
#define LPC31_INTC_REQUEST25_OFFSET 0x464 /* Interrupt request 25 configuration */
#define LPC31_INTC_REQUEST26_OFFSET 0x468 /* Interrupt request 26 configuration */
#define LPC31_INTC_REQUEST27_OFFSET 0x46c /* Interrupt request 27 configuration */
#define LPC31_INTC_REQUEST28_OFFSET 0x470 /* Interrupt request 28 configuration */
#define LPC31_INTC_REQUEST29_OFFSET 0x474 /* Interrupt request 29 configuration */
/* INTC register (virtual) addresses ************************************************************/
#define LPC31_INTC_PRIORITYMASK0 (LPC31_INTC_VBASE+LPC31_INTC_PRIORITYMASK0_OFFSET)
#define LPC31_INTC_PRIORITYMASK1 (LPC31_INTC_VBASE+LPC31_INTC_PRIORITYMASK1_OFFSET)
#define LPC31_INTC_VECTOR0 (LPC31_INTC_VBASE+LPC31_INTC_VECTOR0_OFFSET)
#define LPC31_INTC_VECTOR1 (LPC31_INTC_VBASE+LPC31_INTC_VECTOR1_OFFSET)
#define LPC31_INTC_PENDING (LPC31_INTC_VBASE+LPC31_INTC_PENDING_OFFSET)
#define LPC31_INTC_FEATURES (LPC31_INTC_VBASE+LPC31_INTC_FEATURES_OFFSET)
#define LPC31_INTC_REQUEST(n) (LPC31_INTC_VBASE+LPC31_INTC_REQUEST_OFFSET(n))
#define LPC31_INTC_REQUEST1 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST1_OFFSET)
#define LPC31_INTC_REQUEST2 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST2_OFFSET)
#define LPC31_INTC_REQUEST3 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST3_OFFSET)
#define LPC31_INTC_REQUEST4 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST4_OFFSET)
#define LPC31_INTC_REQUEST5 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST5_OFFSET)
#define LPC31_INTC_REQUEST6 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST6_OFFSET)
#define LPC31_INTC_REQUEST7 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST7_OFFSET)
#define LPC31_INTC_REQUEST8 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST8_OFFSET)
#define LPC31_INTC_REQUEST9 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST9_OFFSET)
#define LPC31_INTC_REQUEST10 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST10_OFFSET)
#define LPC31_INTC_REQUEST11 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST11_OFFSET)
#define LPC31_INTC_REQUEST12 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST12_OFFSET)
#define LPC31_INTC_REQUEST13 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST13_OFFSET)
#define LPC31_INTC_REQUEST14 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST14_OFFSET)
#define LPC31_INTC_REQUEST15 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST15_OFFSET)
#define LPC31_INTC_REQUEST16 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST16_OFFSET)
#define LPC31_INTC_REQUEST17 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST17_OFFSET)
#define LPC31_INTC_REQUEST18 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST18_OFFSET)
#define LPC31_INTC_REQUEST19 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST19_OFFSET)
#define LPC31_INTC_REQUEST20 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST20_OFFSET)
#define LPC31_INTC_REQUEST21 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST21_OFFSET)
#define LPC31_INTC_REQUEST22 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST22_OFFSET)
#define LPC31_INTC_REQUEST23 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST23_OFFSET)
#define LPC31_INTC_REQUEST24 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST24_OFFSET)
#define LPC31_INTC_REQUEST25 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST25_OFFSET)
#define LPC31_INTC_REQUEST26 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST26_OFFSET)
#define LPC31_INTC_REQUEST27 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST27_OFFSET)
#define LPC31_INTC_REQUEST28 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST28_OFFSET)
#define LPC31_INTC_REQUEST29 (LPC31_INTC_VBASE+LPC31_INTC_REQUEST29_OFFSET)
/* INTC register bit definitions ****************************************************************/
/* Interrupt priority mask register (INT_PRIORITYMASK0 address 0x60000000 and
* INTC_PRIORITYMASK1 address 0x60000004)
*/
#define INTC_PRIORITYMASK_PRIOLIMIT_SHIFT (0) /* Bits 0-7: Priority threshold for interrupts */
#define INTC_PRIORITYMASK_PRIOLIMIT_MASK (255 << INTC_PRIORITYMASK_PRIOLIMIT_MASK)
/* Interrupt vector registers (INTC_VECTOR0 address 0x60000100 and INTC_VECTOR1 address
* 0x60000104)
*/
#define INTC_VECTOR_TABLEADDR_SHIFT (11) /* Bits 11-31: Table start address */
#define INTC_VECTOR_TABLEADDR_MASK (0x001fffff << INTC_VECTOR_TABLEADDR_SHIFT)
#define INTC_VECTOR_INDEX_SHIFT (3) /* Bits 3-10: IRQ number of interrupt */
#define INTC_VECTOR_INDEX_MASK (255 << INTC_VECTOR_INDEX_SHIFT)
/* Interrupt pending register (INT_PENDING1_31, address 0x60000200) */
#define INTC_PENDING_SHIFT (1) /* Bits 1-29: Pending interrupt request */
#define INTC_PENDING_MASK (0x1fffffff << INTC_PENDING_SHIFT)
/* Interrupt controller features register (INT_FEATURES, address 0x60000300) */
#define INTC_FEATURES_T_SHIFT (16) /* Bits 16-21: Number interrupt targets supported (+1) */
#define INTC_FEATURES_T_MASK (63 << INTC_FEATURES_T_SHIFT)
#define INTC_FEATURES_P_SHIFT (8) /* Bits 8-15: Number priority levels supported */
#define INTC_FEATURES_P_MASK (255 << INTC_FEATURES_P_SHIFT)
#define INTC_FEATURES_N_SHIFT (0) /* Bits 0-7: Number interrupt request inputs */
#define INTC_FEATURES_N_MASK (255 << INTC_FEATURES_N_SHIFT)
/* Interrupt request registers (INT_REQUEST1 address 0x60000404 to INTC_REQUEST29 address
* 0x60000474)
*/
#define INTC_REQUEST_PENDING (1 << 31) /* Bit 31: Pending interrupt request */
#define INTC_REQUEST_SETSWINT (1 << 30) /* Bit 30: Set software interrupt request */
#define INTC_REQUEST_CLRSWINT (1 << 29) /* Bit 29: Clear software interrupt request */
#define INTC_REQUEST_WEPRIO (1 << 28) /* Bit 28: Write Enable PRIORITY_LEVEL */
#define INTC_REQUEST_WETARGET (1 << 27) /* Bit 27: Write Enable TARGET */
#define INTC_REQUEST_WEENABLE (1 << 26) /* Bit 26: Write Enable ENABLE */
#define INTC_REQUEST_WEACTLOW (1 << 25) /* Bit 25: Write Enable ACTIVE_LOW */
#define INTC_REQUEST_ACTLOW (1 << 17) /* Bit 17: Active Low */
#define INTC_REQUEST_ENABLE (1 << 16) /* Bit 16: Enable interrupt request */
#define INTC_REQUEST_TARGET_SHIFT (8) /* Bits 8-13: Interrupt target */
#define INTC_REQUEST_TARGET_MASK (63 << INTC_REQUEST_TARGET_SHIFT)
# define INTC_REQUEST_TARGET_IRQ (INTC_REQUEST_WETARGET | (0 << INTC_REQUEST_TARGET_SHIFT)) /* Proc interrupt request 0: IRQ */
# define INTC_REQUEST_TARGET_FIQ (INTC_REQUEST_WETARGET | (1 << INTC_REQUEST_TARGET_SHIFT)) /* Proc interrupt request 1: FIQ */
#define INTC_REQUEST_PRIOLEVEL_SHIFT (0) /* Bits 0-7: Priority level */
#define INTC_REQUEST_PRIOLEVEL_MASK (255 << INTC_REQUEST_PRIOLEVEL_SHIFT)
# define INTC_REQUEST_PRIOLEVEL(n) (((n) << INTC_REQUEST_PRIOLEVEL_SHIFT) & INTC_REQUEST_PRIOLEVEL_MASK)
/************************************************************************************************
* Public Types
************************************************************************************************/
/************************************************************************************************
* Public Data
************************************************************************************************/
/************************************************************************************************
* Public Functions
************************************************************************************************/
#endif /* __ARCH_ARM_SRC_LPC31XX_LPC31_INTC_H */
