diff --git a/arch/arm/include/lpc313x/irq.h b/arch/arm/include/lpc313x/irq.h index 681a34b365..c2945ba255 100755 --- a/arch/arm/include/lpc313x/irq.h +++ b/arch/arm/include/lpc313x/irq.h @@ -50,6 +50,7 @@ /* LPC313X Interrupts */ + /* IRQ0: Reserved */ #define LPC313X_IRQ_IRQ0 0 /* IRQ1: Event router cascaded IRQ0 */ #define LPC313X_IRQ_IRQ1 1 /* IRQ2: Event router cascaded IRQ1 */ #define LPC313X_IRQ_IRQ2 2 /* IRQ3: Event router cascaded IRQ2 */ diff --git a/arch/arm/src/lpc313x/lpc313x_intc.h b/arch/arm/src/lpc313x/lpc313x_intc.h new file mode 100755 index 0000000000..f96d505590 --- /dev/null +++ b/arch/arm/src/lpc313x/lpc313x_intc.h @@ -0,0 +1,195 @@ +/************************************************************************************************ + * arch/arm/src/lpc313x/lpc313x_intc.h + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * 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_LPC313X_INTC_H +#define __ARCH_ARM_SRC_LPC313X_INTC_H + +/************************************************************************************************ + * Included Files + ************************************************************************************************/ + +#include +#include "lpc313x_memorymap.h" + +/************************************************************************************************ + * Pre-processor Definitions + ************************************************************************************************/ + +/* INTC register base address *******************************************************************/ + +#define LPC313X_INTC_VBASE (LPC313X_INTC_VSECTION) +#define LPC313X_INTC_PBASE (LPC313X_INTC_PSECTION) + +/* INTC register offsets (with respect to the base of the INTC domain) **************************/ + +#define LPC313X_INTC_PRIORITYMASK0_OFFSET 0x000 /* Interrupt target 0 priority threshold */ +#define LPC313X_INTC_PRIORITYMASK1_OFFSET 0x004 /* Interrupt target 0 priority threshold */ +#define LPC313X_INTC_VECTOR0_OFFSET 0x100 /* Vector register for target 0 => nIRQ */ +#define LPC313X_INTC_VECTOR1_OFFSET 0x104 /* Vector register for target 1 => nFIQ */ +#define LPC313X_INTC_PENDING_OFFSET 0x200 /* Status of interrupt request 1..29 */ +#define LPC313X_INTC_FEATURES_OFFSET 0x300 /* Interrupt controller configuration */ +#define LPC313X_INTC_REQUEST_OFFSET(n) (0x400+((n) << 2)) +#define LPC313X_INTC_REQUEST1_OFFSET 0x404 /* Interrupt request 1 configuration */ +#define LPC313X_INTC_REQUEST2_OFFSET 0x408 /* Interrupt request 2 configuration */ +#define LPC313X_INTC_REQUEST3_OFFSET 0x40c /* Interrupt request 3 configuration */ +#define LPC313X_INTC_REQUEST4_OFFSET 0x410 /* Interrupt request 4 configuration */ +#define LPC313X_INTC_REQUEST5_OFFSET 0x414 /* Interrupt request 5 configuration */ +#define LPC313X_INTC_REQUEST6_OFFSET 0x418 /* Interrupt request 6 configuration */ +#define LPC313X_INTC_REQUEST7_OFFSET 0x41c /* Interrupt request 7 configuration */ +#define LPC313X_INTC_REQUEST8_OFFSET 0x420 /* Interrupt request 8 configuration */ +#define LPC313X_INTC_REQUEST9_OFFSET 0x424 /* Interrupt request 9 configuration */ +#define LPC313X_INTC_REQUEST10_OFFSET 0x428 /* Interrupt request 10 configuration */ +#define LPC313X_INTC_REQUEST11_OFFSET 0x42c /* Interrupt request 11 configuration */ +#define LPC313X_INTC_REQUEST12_OFFSET 0x430 /* Interrupt request 12 configuration */ +#define LPC313X_INTC_REQUEST13_OFFSET 0x434 /* Interrupt request 13 configuration */ +#define LPC313X_INTC_REQUEST14_OFFSET 0x438 /* Interrupt request 14 configuration */ +#define LPC313X_INTC_REQUEST15_OFFSET 0x43c /* Interrupt request 15 configuration */ +#define LPC313X_INTC_REQUEST16_OFFSET 0x440 /* Interrupt request 16 configuration */ +#define LPC313X_INTC_REQUEST17_OFFSET 0x444 /* Interrupt request 17 configuration */ +#define LPC313X_INTC_REQUEST18_OFFSET 0x448 /* Interrupt request 18 configuration */ +#define LPC313X_INTC_REQUEST19_OFFSET 0x44c /* Interrupt request 19 configuration */ +#define LPC313X_INTC_REQUEST20_OFFSET 0x450 /* Interrupt request 20 configuration */ +#define LPC313X_INTC_REQUEST21_OFFSET 0x454 /* Interrupt request 21 configuration */ +#define LPC313X_INTC_REQUEST22_OFFSET 0x458 /* Interrupt request 22 configuration */ +#define LPC313X_INTC_REQUEST23_OFFSET 0x45c /* Interrupt request 23 configuration */ +#define LPC313X_INTC_REQUEST24_OFFSET 0x460 /* Interrupt request 24 configuration */ +#define LPC313X_INTC_REQUEST25_OFFSET 0x464 /* Interrupt request 25 configuration */ +#define LPC313X_INTC_REQUEST26_OFFSET 0x468 /* Interrupt request 26 configuration */ +#define LPC313X_INTC_REQUEST27_OFFSET 0x46c /* Interrupt request 27 configuration */ +#define LPC313X_INTC_REQUEST28_OFFSET 0x470 /* Interrupt request 28 configuration */ +#define LPC313X_INTC_REQUEST29_OFFSET 0x474 /* Interrupt request 29 configuration */ + +/* INTC register (virtual) addresses ************************************************************/ + +#define LPC313X_INTC_PRIORITYMASK0 (LPC313X_ITC_VBASE+LPC313X_INTC_PRIORITYMASK0_OFFSET) +#define LPC313X_INTC_PRIORITYMASK1 (LPC313X_ITC_VBASE+LPC313X_INTC_PRIORITYMASK1_OFFSET) +#define LPC313X_INTC_VECTOR0 (LPC313X_ITC_VBASE+LPC313X_INTC_VECTOR0_OFFSET) +#define LPC313X_INTC_VECTOR1 (LPC313X_ITC_VBASE+LPC313X_INTC_VECTOR1_OFFSET) +#define LPC313X_INTC_PENDING (LPC313X_ITC_VBASE+LPC313X_INTC_PENDING_OFFSET) +#define LPC313X_INTC_FEATURES (LPC313X_ITC_VBASE+LPC313X_INTC_FEATURES_OFFSET) +#define LPC313X_INTC_REQUEST(n) (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST_OFFSET(n)) +#define LPC313X_INTC_REQUEST1 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST1_OFFSET) +#define LPC313X_INTC_REQUEST2 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST2_OFFSET) +#define LPC313X_INTC_REQUEST3 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST3_OFFSET) +#define LPC313X_INTC_REQUEST4 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST4_OFFSET) +#define LPC313X_INTC_REQUEST5 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST5_OFFSET) +#define LPC313X_INTC_REQUEST6 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST6_OFFSET) +#define LPC313X_INTC_REQUEST7 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST7_OFFSET) +#define LPC313X_INTC_REQUEST8 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST8_OFFSET) +#define LPC313X_INTC_REQUEST9 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST9_OFFSET) +#define LPC313X_INTC_REQUEST10 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST10_OFFSET) +#define LPC313X_INTC_REQUEST11 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST11_OFFSET) +#define LPC313X_INTC_REQUEST12 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST12_OFFSET) +#define LPC313X_INTC_REQUEST13 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST13_OFFSET) +#define LPC313X_INTC_REQUEST14 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST14_OFFSET) +#define LPC313X_INTC_REQUEST15 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST15_OFFSET) +#define LPC313X_INTC_REQUEST16 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST16_OFFSET) +#define LPC313X_INTC_REQUEST17 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST17_OFFSET) +#define LPC313X_INTC_REQUEST18 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST18_OFFSET) +#define LPC313X_INTC_REQUEST19 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST19_OFFSET) +#define LPC313X_INTC_REQUEST20 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST20_OFFSET) +#define LPC313X_INTC_REQUEST21 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST21_OFFSET) +#define LPC313X_INTC_REQUEST22 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST22_OFFSET) +#define LPC313X_INTC_REQUEST23 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST23_OFFSET) +#define LPC313X_INTC_REQUEST24 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST24_OFFSET) +#define LPC313X_INTC_REQUEST25 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST25_OFFSET) +#define LPC313X_INTC_REQUEST26 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST26_OFFSET) +#define LPC313X_INTC_REQUEST27 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST27_OFFSET) +#define LPC313X_INTC_REQUEST28 (LPC313X_ITC_VBASE+LPC313X_INTC_REQUEST28_OFFSET) +#define LPC313X_INTC_REQUEST29 (LPC313X_ITC_VBASE+LPC313X_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_PRIOLEVEL_SHIFT (0) /* Bits 0-7: Priority level */ +#define INTC_REQUEST_PRIOLEVEL_MASK (255 << INTC_REQUEST_PRIOLEVEL_SHIFT) + +/************************************************************************************************ + * Public Types + ************************************************************************************************/ + +/************************************************************************************************ + * Public Data + ************************************************************************************************/ + +/************************************************************************************************ + * Public Functions + ************************************************************************************************/ + +#endif /* __ARCH_ARM_SRC_LPC313X_INTC_H */