diff options
Diffstat (limited to 'nuttx/arch/arm/src/cortexm3')
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/nvic.h | 489 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/psr.h | 91 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/up_assert.c | 311 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/up_copystate.c | 86 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/up_doirq.c | 113 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/up_initialstate.c | 106 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/up_schedulesigaction.c | 208 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/cortexm3/up_sigdeliver.c | 144 |
8 files changed, 1548 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/cortexm3/nvic.h b/nuttx/arch/arm/src/cortexm3/nvic.h new file mode 100644 index 000000000..3cd094133 --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/nvic.h @@ -0,0 +1,489 @@ +/************************************************************************************ + * arch/arm/src/cortexm3/nvic.h + * + * Copyright (C) 2009 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_COMMON_CORTEXM3_NVIC_H +#define __ARCH_ARM_SRC_COMMON_CORTEXM3_NVIC_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* NVIC base address ****************************************************************/ + +#define CORTEXM3_NVIC_BASE 0xe000e000 + +/* NVIC register offsets ************************************************************/ + +#define NVIC_INTCTRL_TYPE_OFFSET 0x0004 /* Interrupt controller type */ +#define NVIC_SYSTICK_CTRL_OFFSET 0x0010 /* SysTick control and status register */ +#define NVIC_SYSTICK_RELOAD_OFFSET 0x0014 /* SysTick reload value register */ +#define NVIC_SYSTICK_CURRENT_OFFSET 0x0018 /* SysTick current value register */ +#define NVIC_SYSTICK_CALIB_OFFSET 0x001c /* SysTick calibration value register */ + +#define NVIC_IRQ_ENABLE_OFFSET(n) (0x0100 + 4*((n) >> 5)) +#define NVIC_IRQ0_31_ENABLE_OFFSET 0x0100 /* IRQ 0-31 set enable register */ +#define NVIC_IRQ32_63_ENABLE_OFFSET 0x0104 /* IRQ 32-63 set enable register */ +#define NVIC_IRQ64_95_ENABLE_OFFSET 0x0108 /* IRQ 64-95 set enable register */ +#define NVIC_IRQ96_127_ENABLE_OFFSET 0x010c /* IRQ 96-127 set enable register */ +#define NVIC_IRQ128_159_ENABLE_OFFSET 0x0110 /* IRQ 128-159 set enable register */ +#define NVIC_IRQ160_191_ENABLE_OFFSET 0x0114 /* IRQ 160-191 set enable register */ +#define NVIC_IRQ192_223_ENABLE_OFFSET 0x0118 /* IRQ 192-223 set enable register */ +#define NVIC_IRQ224_239_ENABLE_OFFSET 0x011c /* IRQ 224-239 set enable register */ + +#define NVIC_IRQ_CLEAR_OFFSET(n) (0x0180 + 4*((n) >> 5)) +#define NVIC_IRQ0_31_CLEAR_OFFSET 0x0180 /* IRQ 0-31 clear enable register */ +#define NVIC_IRQ32_63_CLEAR_OFFSET 0x0184 /* IRQ 32-63 clear enable register */ +#define NVIC_IRQ64_95_CLEAR_OFFSET 0x0188 /* IRQ 64-95 clear enable register */ +#define NVIC_IRQ96_127_CLEAR_OFFSET 0x018c /* IRQ 96-127 clear enable register */ +#define NVIC_IRQ128_159_CLEAR_OFFSET 0x0190 /* IRQ 128-159 clear enable register */ +#define NVIC_IRQ160_191_CLEAR_OFFSET 0x0194 /* IRQ 160-191 clear enable register */ +#define NVIC_IRQ192_223_CLEAR_OFFSET 0x0198 /* IRQ 192-223 clear enable register */ +#define NVIC_IRQ224_239_CLEAR_OFFSET 0x019c /* IRQ 224-2391 clear enable register */ + +#define NVIC_IRQ_PEND_OFFSET(n) (0x0200 + 4*((n) >> 5)) +#define NVIC_IRQ0_31_PEND_OFFSET 0x0200 /* IRQ 0-31 set pending register */ +#define NVIC_IRQ32_63_PEND_OFFSET 0x0204 /* IRQ 32-63 set pending register */ +#define NVIC_IRQ64_95_PEND_OFFSET 0x0208 /* IRQ 64-95 set pending register */ +#define NVIC_IRQ96_127_PEND_OFFSET 0x020c /* IRQ 96-127 set pending register */ +#define NVIC_IRQ128_159_PEND_OFFSET 0x0210 /* IRQ 128-159 set pending register */ +#define NVIC_IRQ160_191_PEND_OFFSET 0x0214 /* IRQ 160-191 set pending register */ +#define NVIC_IRQ192_223_PEND_OFFSET 0x0218 /* IRQ 192-2231 set pending register */ +#define NVIC_IRQ224_239_PEND_OFFSET 0x021c /* IRQ 224-2391 set pending register */ + +#define NVIC_IRQ_CLRPEND_OFFSET(n) (0x0280 + 4*((n) >> 5)) +#define NVIC_IRQ0_31_CLRPEND_OFFSET 0x0280 /* IRQ 0-31 clear pending register */ +#define NVIC_IRQ32_63_CLRPEND_OFFSET 0x0284 /* IRQ 32-63 clear pending register */ +#define NVIC_IRQ64_95_CLRPEND_OFFSET 0x0288 /* IRQ 64-95 clear pending register */ +#define NVIC_IRQ96_127_CLRPEND_OFFSET 0x028c /* IRQ 96-127 clear pending register */ +#define NVIC_IRQ128_159_CLRPEND_OFFSET 0x0290 /* IRQ 128-159 clear pending register */ +#define NVIC_IRQ160_191_CLRPEND_OFFSET 0x0294 /* IRQ 160-191 clear pending register */ +#define NVIC_IRQ192_223_CLRPEND_OFFSET 0x0298 /* IRQ 192-223 clear pending register */ +#define NVIC_IRQ224_239_CLRPEND_OFFSET 0x029c /* IRQ 224-239 clear pending register */ + +#define NVIC_IRQ_ACTIVE_OFFSET(n) (0x0300 + 4*((n) >> 5)) +#define NVIC_IRQ0_31_ACTIVE_OFFSET 0x0300 /* IRQ 0-31 active bit register */ +#define NVIC_IRQ32_63_ACTIVE_OFFSET 0x0304 /* IRQ 32-63 active bit register */ +#define NVIC_IRQ64_95_ACTIVE_OFFSET 0x0308 /* IRQ 64-95 active bit register */ +#define NVIC_IRQ96_127_ACTIVE_OFFSET 0x030c /* IRQ 96-127 active bit register */ +#define NVIC_IRQ128_159_ACTIVE_OFFSET 0x0310 /* IRQ 128-159 active bit register */ +#define NVIC_IRQ160_191_ACTIVE_OFFSET 0x0314 /* IRQ 160-191 active bit register */ +#define NVIC_IRQ192_223_ACTIVE_OFFSET 0x0318 /* IRQ 192-223 active bit register */ +#define NVIC_IRQ224_239_ACTIVE_OFFSET 0x031c /* IRQ 224-239 active bit register */ + +#define NVIC_IRQ_PRIORITY_OFFSET(n) (0x0400 + 4*((n) >> 2)) +#define NVIC_IRQ0_3_PRIORITY_OFFSET 0x0400 /* IRQ 0-3 priority register */ +#define NVIC_IRQ4_7_PRIORITY_OFFSET 0x0404 /* IRQ 4-7 priority register */ +#define NVIC_IRQ8_11_PRIORITY_OFFSET 0x0408 /* IRQ 8-11 priority register */ +#define NVIC_IRQ12_15_PRIORITY_OFFSET 0x040c /* IRQ 12-15 priority register */ +#define NVIC_IRQ16_19_PRIORITY_OFFSET 0x0410 /* IRQ 16-19 priority register */ +#define NVIC_IRQ20_23_PRIORITY_OFFSET 0x0414 /* IRQ 20-23 priority register */ +#define NVIC_IRQ24_27_PRIORITY_OFFSET 0x0418 /* IRQ 24-29 priority register */ +#define NVIC_IRQ28_31_PRIORITY_OFFSET 0x041c /* IRQ 28-31 priority register */ +#define NVIC_IRQ32_35_PRIORITY_OFFSET 0x0420 /* IRQ 32-35 priority register */ +#define NVIC_IRQ36_39_PRIORITY_OFFSET 0x0424 /* IRQ 36-39 priority register */ +#define NVIC_IRQ40_43_PRIORITY_OFFSET 0x0428 /* IRQ 40-43 priority register */ +#define NVIC_IRQ44_47_PRIORITY_OFFSET 0x042c /* IRQ 44-47 priority register */ +#define NVIC_IRQ48_51_PRIORITY_OFFSET 0x0430 /* IRQ 48-51 priority register */ +#define NVIC_IRQ52_55_PRIORITY_OFFSET 0x0434 /* IRQ 52-55 priority register */ +#define NVIC_IRQ56_59_PRIORITY_OFFSET 0x0438 /* IRQ 56-59 priority register */ +#define NVIC_IRQ60_63_PRIORITY_OFFSET 0x043c /* IRQ 60-63 priority register */ +#define NVIC_IRQ64_67_PRIORITY_OFFSET 0x0440 /* IRQ 64-67 priority register */ +#define NVIC_IRQ68_71_PRIORITY_OFFSET 0x0444 /* IRQ 68-71 priority register */ +#define NVIC_IRQ72_75_PRIORITY_OFFSET 0x0448 /* IRQ 72-75 priority register */ +#define NVIC_IRQ76_79_PRIORITY_OFFSET 0x044c /* IRQ 76-79 priority register */ +#define NVIC_IRQ80_83_PRIORITY_OFFSET 0x0450 /* IRQ 80-83 priority register */ +#define NVIC_IRQ84_87_PRIORITY_OFFSET 0x0454 /* IRQ 84-87 priority register */ +#define NVIC_IRQ88_91_PRIORITY_OFFSET 0x0458 /* IRQ 88-91 priority register */ +#define NVIC_IRQ92_95_PRIORITY_OFFSET 0x045c /* IRQ 92-95 priority register */ +#define NVIC_IRQ96_99_PRIORITY_OFFSET 0x0460 /* IRQ 96-99 priority register */ +#define NVIC_IRQ100_103_PRIORITY_OFFSET 0x0464 /* IRQ 100-103 priority register */ +#define NVIC_IRQ104_107_PRIORITY_OFFSET 0x0468 /* IRQ 104-107 priority register */ +#define NVIC_IRQ108_111_PRIORITY_OFFSET 0x046c /* IRQ 108-111 priority register */ +#define NVIC_IRQ112_115_PRIORITY_OFFSET 0x0470 /* IRQ 112-115 priority register */ +#define NVIC_IRQ116_119_PRIORITY_OFFSET 0x0474 /* IRQ 116-119 priority register */ +#define NVIC_IRQ120_123_PRIORITY_OFFSET 0x0478 /* IRQ 120-123 priority register */ +#define NVIC_IRQ124_127_PRIORITY_OFFSET 0x047c /* IRQ 124-127 priority register */ +#define NVIC_IRQ128_131_PRIORITY_OFFSET 0x0480 /* IRQ 128-131 priority register */ +#define NVIC_IRQ132_135_PRIORITY_OFFSET 0x0484 /* IRQ 132-135 priority register */ +#define NVIC_IRQ136_139_PRIORITY_OFFSET 0x0488 /* IRQ 136-139 priority register */ +#define NVIC_IRQ140_143_PRIORITY_OFFSET 0x048c /* IRQ 140-143 priority register */ +#define NVIC_IRQ144_147_PRIORITY_OFFSET 0x0490 /* IRQ 144-147 priority register */ +#define NVIC_IRQ148_151_PRIORITY_OFFSET 0x0494 /* IRQ 148-151 priority register */ +#define NVIC_IRQ152_155_PRIORITY_OFFSET 0x0498 /* IRQ 152-155 priority register */ +#define NVIC_IRQ156_159_PRIORITY_OFFSET 0x049c /* IRQ 156-159 priority register */ +#define NVIC_IRQ160_163_PRIORITY_OFFSET 0x04a0 /* IRQ 160-163 priority register */ +#define NVIC_IRQ164_167_PRIORITY_OFFSET 0x04a4 /* IRQ 164-167 priority register */ +#define NVIC_IRQ168_171_PRIORITY_OFFSET 0x04a8 /* IRQ 168-171 priority register */ +#define NVIC_IRQ172_175_PRIORITY_OFFSET 0x04ac /* IRQ 172-175 priority register */ +#define NVIC_IRQ176_179_PRIORITY_OFFSET 0x04b0 /* IRQ 176-179 priority register */ +#define NVIC_IRQ180_183_PRIORITY_OFFSET 0x04b4 /* IRQ 180-183 priority register */ +#define NVIC_IRQ184_187_PRIORITY_OFFSET 0x04b8 /* IRQ 184-187 priority register */ +#define NVIC_IRQ188_191_PRIORITY_OFFSET 0x04bc /* IRQ 188-191 priority register */ +#define NVIC_IRQ192_195_PRIORITY_OFFSET 0x04c0 /* IRQ 192-195 priority register */ +#define NVIC_IRQ196_199_PRIORITY_OFFSET 0x04c4 /* IRQ 196-199 priority register */ +#define NVIC_IRQ200_203_PRIORITY_OFFSET 0x04c8 /* IRQ 200-203 priority register */ +#define NVIC_IRQ204_207_PRIORITY_OFFSET 0x04cc /* IRQ 204-207 priority register */ +#define NVIC_IRQ208_211_PRIORITY_OFFSET 0x04d0 /* IRQ 208-211 priority register */ +#define NVIC_IRQ212_215_PRIORITY_OFFSET 0x04d4 /* IRQ 212-215 priority register */ +#define NVIC_IRQ216_219_PRIORITY_OFFSET 0x04d8 /* IRQ 216-219 priority register */ +#define NVIC_IRQ220_223_PRIORITY_OFFSET 0x04dc /* IRQ 220-223 priority register */ +#define NVIC_IRQ224_227_PRIORITY_OFFSET 0x04e0 /* IRQ 224-227 priority register */ +#define NVIC_IRQ228_231_PRIORITY_OFFSET 0x04e4 /* IRQ 228-231 priority register */ +#define NVIC_IRQ232_235_PRIORITY_OFFSET 0x04e8 /* IRQ 232-235 priority register */ +#define NVIC_IRQ236_239_PRIORITY_OFFSET 0x04ec /* IRQ 236-239 priority register */ + +#define NVIC_CPUID_BASE_OFFSET 0x0d00 /* CPUID base register */ +#define NVIC_INTCTRL_OFFSET 0x0d04 /* Interrupt control state register */ +#define NVIC_VECTAB_OFFSET 0x0d08 /* Vector table offset register */ +#define NVIC_AIRC_OFFSET 0x0d0c /* Application interrupt/reset contol registr */ +#define NVIC_SYSCON_OFFSET 0x0d10 /* System control register */ +#define NVIC_CFGCON_OFFSET 0x0d14 /* Configuration control register */ +#define NVIC_SYSH_PRIORITY_OFFSET(n) (0x0d14 + 4*((n) >> 2)) +#define NVIC_SYSH4_7_PRIORITY_OFFSET 0x0d18 /* System handlers 4-7 priority register */ +#define NVIC_SYSH8_11_PRIORITY_OFFSET 0x0d1c /* System handler 8-11 priority register */ +#define NVIC_SYSH12_15_PRIORITY_OFFSET 0x0d20 /* System handler 12-15 priority register */ +#define NVIC_SYSHCON_OFFSET 0x0d24 /* System handler control and state register */ +#define NVIC_CFAULTS_OFFSET 0x0d28 /* Configurable fault status register */ +#define NVIC_HFAULTS_OFFSET 0x0d2c /* Hard fault status register */ +#define NVIC_DFAULTS_OFFSET 0x0d30 /* Debug fault status register */ +#define NVIC_MEMMANAGE_ADDR_OFFSET 0x0d34 /* Mem manage address register */ +#define NVIC_BFAULT_ADDR_OFFSET 0x0d38 /* Bus fault address register */ +#define NVIC_AFAULTS_OFFSET 0x0d3c /* Auxiliary fault status register */ +#define NVIC_PFR0_OFFSET 0x0d40 /* Processor feature register 0 */ +#define NVIC_PFR1_OFFSET 0x0d44 /* Processor feature register 1 */ +#define NVIC_DFR0_OFFSET 0x0d48 /* Debug feature register 0 */ +#define NVIC_AFR0_OFFSET 0x0d4c /* Auxiliary feature register 0 */ +#define NVIC_MMFR0_OFFSET 0x0d50 /* Memory model feature register 0 */ +#define NVIC_MMFR1_OFFSET 0x0d54 /* Memory model feature register 1 */ +#define NVIC_MMFR2_OFFSET 0x0d58 /* Memory model feature register 2 */ +#define NVIC_MMFR3_OFFSET 0x0d5c /* Memory model feature register 3 */ +#define NVIC_ISAR0_OFFSET 0x0d60 /* ISA feature register 0 */ +#define NVIC_ISAR1_OFFSET 0x0d64 /* ISA feature register 1 */ +#define NVIC_ISAR2_OFFSET 0x0d68 /* ISA feature register 2 */ +#define NVIC_ISAR3_OFFSET 0x0d6c /* ISA feature register 3 */ +#define NVIC_ISAR4_OFFSET 0x0d70 /* ISA feature register 4 */ +#define NVIC_STIR_OFFSET 0x0f00 /* Software trigger interrupt register */ +#define NVIC_PID4_OFFSET 0x0fd0 /* Peripheral identification register (PID4) */ +#define NVIC_PID5_OFFSET 0x0fd4 /* Peripheral identification register (PID5) */ +#define NVIC_PID6_OFFSET 0x0fd8 /* Peripheral identification register (PID6) */ +#define NVIC_PID7_OFFSET 0x0fdc /* Peripheral identification register (PID7) */ +#define NVIC_PID0_OFFSET 0x0fe0 /* Peripheral identification register bits 7:0 (PID0) */ +#define NVIC_PID1_OFFSET 0x0fe4 /* Peripheral identification register bits 15:8 (PID1) */ +#define NVIC_PID2_OFFSET 0x0fe8 /* Peripheral identification register bits 23:16 (PID2) */ +#define NVIC_PID3_OFFSET 0x0fec /* Peripheral identification register bits 23:16 (PID3) */ +#define NVIC_CID0_OFFSET 0x0ff0 /* Component identification register bits 7:0 (CID0) */ +#define NVIC_CID1_OFFSET 0x0ff4 /* Component identification register bits 15:8 (CID0) */ +#define NVIC_CID2_OFFSET 0x0ff8 /* Component identification register bits 23:16 (CID0) */ +#define NVIC_CID3_OFFSET 0x0ffc /* Component identification register bits 23:16 (CID0) */ + +/* NVIC register addresses **********************************************************/ + +#define NVIC_INTCTRL_TYPE (CORTEXM3_NVIC_BASE + NVIC_INTCTRL_TYPE_OFFSET) +#define NVIC_SYSTICK_CTRL (CORTEXM3_NVIC_BASE + NVIC_SYSTICK_CTRL_OFFSET) +#define NVIC_SYSTICK_RELOAD (CORTEXM3_NVIC_BASE + NVIC_SYSTICK_RELOAD_OFFSET) +#define NVIC_SYSTICK_CURRENT (CORTEXM3_NVIC_BASE + NVIC_SYSTICK_CURRENT_OFFSET) +#define NVIC_SYSTICK_CALIB (CORTEXM3_NVIC_BASE + NVIC_SYSTICK_CALIB_OFFSET) + +#define NVIC_IRQ_ENABLE(n) (CORTEXM3_NVIC_BASE + NVIC_IRQ_ENABLE_OFFSET(n)) +#define NVIC_IRQ0_31_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ0_31_ENABLE_OFFSET) +#define NVIC_IRQ32_63_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ32_63_ENABLE_OFFSET) +#define NVIC_IRQ64_95_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ64_95_ENABLE_OFFSET) +#define NVIC_IRQ96_127_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ96_127_ENABLE_OFFSET) +#define NVIC_IRQ128_159_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ128_159_ENABLE_OFFSET) +#define NVIC_IRQ160_191_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ160_191_ENABLE_OFFSET) +#define NVIC_IRQ192_223_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ192_223_ENABLE_OFFSET) +#define NVIC_IRQ224_239_ENABLE (CORTEXM3_NVIC_BASE + NVIC_IRQ224_239_ENABLE_OFFSET) + +#define NVIC_IRQ_CLEAR(n) (CORTEXM3_NVIC_BASE + NVIC_IRQ_CLEAR_OFFSET(n)) +#define NVIC_IRQ0_31_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ0_31_CLEAR_OFFSET) +#define NVIC_IRQ32_63_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ32_63_CLEAR_OFFSET) +#define NVIC_IRQ64_95_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ64_95_CLEAR_OFFSET) +#define NVIC_IRQ96_127_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ96_127_CLEAR_OFFSET) +#define NVIC_IRQ128_159_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ128_159_CLEAR_OFFSET) +#define NVIC_IRQ160_191_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ160_191_CLEAR_OFFSET) +#define NVIC_IRQ192_223_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ192_223_CLEAR_OFFSET) +#define NVIC_IRQ224_239_CLEAR (CORTEXM3_NVIC_BASE + NVIC_IRQ224_239_CLEAR_OFFSET) + +#define NVIC_IRQ_PEND(n) (CORTEXM3_NVIC_BASE + NVIC_IRQ_PEND_OFFSET(n)) +#define NVIC_IRQ0_31_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ0_31_PEND_OFFSET) +#define NVIC_IRQ32_63_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ32_63_PEND_OFFSET) +#define NVIC_IRQ64_95_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ64_95_PEND_OFFSET) +#define NVIC_IRQ96_127_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ96_127_PEND_OFFSET) +#define NVIC_IRQ128_159_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ128_159_PEND_OFFSET) +#define NVIC_IRQ160_191_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ160_191_PEND_OFFSET) +#define NVIC_IRQ192_223_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ192_223_PEND_OFFSET) +#define NVIC_IRQ224_239_PEND (CORTEXM3_NVIC_BASE + NVIC_IRQ224_239_PEND_OFFSET) + +#define NVIC_IRQ_CLRPEND(n) (CORTEXM3_NVIC_BASE + NVIC_IRQ_CLRPEND_OFFSET(n)) +#define NVIC_IRQ0_31_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ0_31_CLRPEND_OFFSET) +#define NVIC_IRQ32_63_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ32_63_CLRPEND_OFFSET) +#define NVIC_IRQ64_95_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ64_95_CLRPEND_OFFSET) +#define NVIC_IRQ96_127_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ96_127_CLRPEND_OFFSET) +#define NVIC_IRQ128_159_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ128_159_CLRPEND_OFFSET) +#define NVIC_IRQ160_191_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ160_191_CLRPEND_OFFSET) +#define NVIC_IRQ192_223_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ192_223_CLRPEND_OFFSET) +#define NVIC_IRQ224_239_CLRPEND (CORTEXM3_NVIC_BASE + NVIC_IRQ224_239_CLRPEND_OFFSET) + +#define NVIC_IRQ_ACTIVE(n) (CORTEXM3_NVIC_BASE + NVIC_IRQ_ACTIVE_OFFSET(n)) +#define NVIC_IRQ0_31_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ0_31_ACTIVE_OFFSET) +#define NVIC_IRQ32_63_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ32_63_ACTIVE_OFFSET) +#define NVIC_IRQ64_95_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ64_95_ACTIVE_OFFSET) +#define NVIC_IRQ96_127_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ96_127_ACTIVE_OFFSET) +#define NVIC_IRQ128_159_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ128_159_ACTIVE_OFFSET) +#define NVIC_IRQ160_191_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ160_191_ACTIVE_OFFSET) +#define NVIC_IRQ192_223_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ192_223_ACTIVE_OFFSET) +#define NVIC_IRQ224_239_ACTIVE (CORTEXM3_NVIC_BASE + NVIC_IRQ224_239_ACTIVE_OFFSET) + +#define NVIC_IRQ_PRIORITY(n) (CORTEXM3_NVIC_BASE + NVIC_IRQ_PRIORITY_OFFSET(n)) +#define NVIC_IRQ0_3_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ0_3_PRIORITY_OFFSET) +#define NVIC_IRQ4_7_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ4_7_PRIORITY_OFFSET) +#define NVIC_IRQ8_11_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ8_11_PRIORITY_OFFSET) +#define NVIC_IRQ12_15_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ12_15_PRIORITY_OFFSET) +#define NVIC_IRQ16_19_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ16_19_PRIORITY_OFFSET) +#define NVIC_IRQ20_23_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ20_23_PRIORITY_OFFSET) +#define NVIC_IRQ24_27_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ24_27_PRIORITY_OFFSET) +#define NVIC_IRQ28_31_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ28_31_PRIORITY_OFFSET) +#define NVIC_IRQ32_35_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ32_35_PRIORITY_OFFSET) +#define NVIC_IRQ36_39_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ36_39_PRIORITY_OFFSET) +#define NVIC_IRQ40_43_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ40_43_PRIORITY_OFFSET) +#define NVIC_IRQ44_47_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ44_47_PRIORITY_OFFSET) +#define NVIC_IRQ48_51_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ48_51_PRIORITY_OFFSET) +#define NVIC_IRQ52_55_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ52_55_PRIORITY_OFFSET) +#define NVIC_IRQ56_59_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ56_59_PRIORITY_OFFSET) +#define NVIC_IRQ60_63_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ60_63_PRIORITY_OFFSET) +#define NVIC_IRQ64_67_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ64_67_PRIORITY_OFFSET) +#define NVIC_IRQ68_71_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ68_71_PRIORITY_OFFSET) +#define NVIC_IRQ72_75_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ72_75_PRIORITY_OFFSET) +#define NVIC_IRQ76_79_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ76_79_PRIORITY_OFFSET) +#define NVIC_IRQ80_83_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ80_83_PRIORITY_OFFSET) +#define NVIC_IRQ84_87_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ84_87_PRIORITY_OFFSET) +#define NVIC_IRQ88_91_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ88_91_PRIORITY_OFFSET) +#define NVIC_IRQ92_95_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ92_95_PRIORITY_OFFSET) +#define NVIC_IRQ96_99_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ96_99_PRIORITY_OFFSET) +#define NVIC_IRQ100_103_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ100_103_PRIORITY_OFFSET) +#define NVIC_IRQ104_107_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ104_107_PRIORITY_OFFSET) +#define NVIC_IRQ108_111_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ108_111_PRIORITY_OFFSET) +#define NVIC_IRQ112_115_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ112_115_PRIORITY_OFFSET) +#define NVIC_IRQ116_119_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ116_119_PRIORITY_OFFSET) +#define NVIC_IRQ120_123_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ120_123_PRIORITY_OFFSET) +#define NVIC_IRQ124_127_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ124_127_PRIORITY_OFFSET) +#define NVIC_IRQ128_131_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ128_131_PRIORITY_OFFSET) +#define NVIC_IRQ132_135_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ132_135_PRIORITY_OFFSET) +#define NVIC_IRQ136_139_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ136_139_PRIORITY_OFFSET) +#define NVIC_IRQ140_143_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ140_143_PRIORITY_OFFSET) +#define NVIC_IRQ144_147_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ144_147_PRIORITY_OFFSET) +#define NVIC_IRQ148_151_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ148_151_PRIORITY_OFFSET) +#define NVIC_IRQ152_155_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ152_155_PRIORITY_OFFSET) +#define NVIC_IRQ156_159_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ156_159_PRIORITY_OFFSET) +#define NVIC_IRQ160_163_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ160_163_PRIORITY_OFFSET) +#define NVIC_IRQ164_167_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ164_167_PRIORITY_OFFSET) +#define NVIC_IRQ168_171_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ168_171_PRIORITY_OFFSET) +#define NVIC_IRQ172_175_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ172_175_PRIORITY_OFFSET) +#define NVIC_IRQ176_179_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ176_179_PRIORITY_OFFSET) +#define NVIC_IRQ180_183_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ180_183_PRIORITY_OFFSET) +#define NVIC_IRQ184_187_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ184_187_PRIORITY_OFFSET) +#define NVIC_IRQ188_191_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ188_191_PRIORITY_OFFSET) +#define NVIC_IRQ192_195_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ192_195_PRIORITY_OFFSET) +#define NVIC_IRQ196_199_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ196_199_PRIORITY_OFFSET) +#define NVIC_IRQ200_203_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ200_203_PRIORITY_OFFSET) +#define NVIC_IRQ204_207_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ204_207_PRIORITY_OFFSET) +#define NVIC_IRQ208_211_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ208_211_PRIORITY_OFFSET) +#define NVIC_IRQ212_215_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ212_215_PRIORITY_OFFSET) +#define NVIC_IRQ216_219_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ216_219_PRIORITY_OFFSET) +#define NVIC_IRQ220_223_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ220_223_PRIORITY_OFFSET) +#define NVIC_IRQ224_227_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ224_227_PRIORITY_OFFSET) +#define NVIC_IRQ228_231_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ228_231_PRIORITY_OFFSET) +#define NVIC_IRQ232_235_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_IRQ232_235_PRIORITY_OFFSET) + +#define NVIC_CPUID_BASE (CORTEXM3_NVIC_BASE + NVIC_CPUID_BASE_OFFSET) +#define NVIC_INTCTRL (CORTEXM3_NVIC_BASE + NVIC_INTCTRL_OFFSET) +#define NVIC_VECTAB (CORTEXM3_NVIC_BASE + NVIC_VECTAB_OFFSET) +#define NVIC_AIRC (CORTEXM3_NVIC_BASE + NVIC_AIRC_OFFSET) +#define NVIC_SYSCON (CORTEXM3_NVIC_BASE + NVIC_SYSCON_OFFSET) +#define NVIC_CFGCON (CORTEXM3_NVIC_BASE + NVIC_CFGCON_OFFSET) +#define NVIC_SYSH_PRIORITY(n) (CORTEXM3_NVIC_BASE + NVIC_SYSH_PRIORITY_OFFSET(n)) +#define NVIC_SYSH4_7_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_SYSH4_7_PRIORITY_OFFSET) +#define NVIC_SYSH8_11_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_SYSH8_11_PRIORITY_OFFSET) +#define NVIC_SYSH12_15_PRIORITY (CORTEXM3_NVIC_BASE + NVIC_SYSH12_15_PRIORITY_OFFSET) +#define NVIC_SYSHCON (CORTEXM3_NVIC_BASE + NVIC_SYSHCON_OFFSET) +#define NVIC_CFAULTS (CORTEXM3_NVIC_BASE + NVIC_CFAULTS_OFFSET) +#define NVIC_HFAULTS (CORTEXM3_NVIC_BASE + NVIC_HFAULTS_OFFSET) +#define NVIC_DFAULTS (CORTEXM3_NVIC_BASE + NVIC_DFAULTS_OFFSET) +#define NVIC_MEMMANAGE_ADDR (CORTEXM3_NVIC_BASE + NVIC_MEMMANAGE_ADDR_OFFSET) +#define NVIC_BFAULT_ADDR (CORTEXM3_NVIC_BASE + NVIC_BFAULT_ADDR_OFFSET) +#define NVIC_AFAULTS (CORTEXM3_NVIC_BASE + NVIC_AFAULTS_OFFSET) +#define NVIC_PFR0 (CORTEXM3_NVIC_BASE + NVIC_PFR0_OFFSET) +#define NVIC_PFR1 (CORTEXM3_NVIC_BASE + NVIC_PFR1_OFFSET) +#define NVIC_DFR0 (CORTEXM3_NVIC_BASE + NVIC_DFR0_OFFSET) +#define NVIC_AFR0 (CORTEXM3_NVIC_BASE + NVIC_AFR0_OFFSET) +#define NVIC_MMFR0 (CORTEXM3_NVIC_BASE + NVIC_MMFR0_OFFSET) +#define NVIC_MMFR1 (CORTEXM3_NVIC_BASE + NVIC_MMFR1_OFFSET) +#define NVIC_MMFR2 (CORTEXM3_NVIC_BASE + NVIC_MMFR2_OFFSET) +#define NVIC_MMFR3 (CORTEXM3_NVIC_BASE + NVIC_MMFR3_OFFSET) +#define NVIC_ISAR0 (CORTEXM3_NVIC_BASE + NVIC_ISAR0_OFFSET) +#define NVIC_ISAR1 (CORTEXM3_NVIC_BASE + NVIC_ISAR1_OFFSET) +#define NVIC_ISAR2 (CORTEXM3_NVIC_BASE + NVIC_ISAR2_OFFSET) +#define NVIC_ISAR3 (CORTEXM3_NVIC_BASE + NVIC_ISAR3_OFFSET) +#define NVIC_ISAR4 (CORTEXM3_NVIC_BASE + NVIC_ISAR4_OFFSET) +#define NVIC_STIR (CORTEXM3_NVIC_BASE + NVIC_STIR_OFFSET) +#define NVIC_PID4 (CORTEXM3_NVIC_BASE + NVIC_PID4_OFFSET) +#define NVIC_PID5 (CORTEXM3_NVIC_BASE + NVIC_PID5_OFFSET) +#define NVIC_PID6 (CORTEXM3_NVIC_BASE + NVIC_PID6_OFFSET) +#define NVIC_PID7 (CORTEXM3_NVIC_BASE + NVIC_PID7_OFFSET) +#define NVIC_PID0 (CORTEXM3_NVIC_BASE + NVIC_PID0_OFFSET) +#define NVIC_PID1 (CORTEXM3_NVIC_BASE + NVIC_PID1_OFFSET) +#define NVIC_PID2 (CORTEXM3_NVIC_BASE + NVIC_PID2_OFFSET) +#define NVIC_PID3 (CORTEXM3_NVIC_BASE + NVIC_PID3_OFFSET) +#define NVIC_CID0 (CORTEXM3_NVIC_BASE + NVIC_CID0_OFFSET) +#define NVIC_CID1 (CORTEXM3_NVIC_BASE + NVIC_CID1_OFFSET) +#define NVIC_CID2 (CORTEXM3_NVIC_BASE + NVIC_CID2_OFFSET) +#define NVIC_CID3 (CORTEXM3_NVIC_BASE + NVIC_CID3_OFFSET) + +/* NVIC register bit definitions ****************************************************/ + +/* Interrrupt controller type (INCTCTL_TYPE) */ + +#define NVIC_INTCTRL_TYPE_INTLINESNUM_SHIFT 0 /* Bits 4-0: Number of interrupt intputs / 32 */ +#define NVIC_INTCTRL_TYPE_INTLINESNUM_MASK (0x1f << NVIC_INTCTRL_TYPE_INTLINESNUM_SHIFT) + +/* SysTick control and status register (SYSTICK_CTRL) */ + +#define NVIC_SYSTICK_CTRL_ENABLE (1 << 0) /* Bit 0: Enable */ +#define NVIC_SYSTICK_CTRL_TICKINT (1 << 1) /* Bit 1: Tick interrupt */ +#define NVIC_SYSTICK_CTRL_CLKSOURCE (1 << 2) /* Bit 2: Clock source */ +#define NVIC_SYSTICK_CTRL_COUNTFLAG (1 << 16) /* Bit 16: Count Flag */ + +/* SysTick reload value register (SYSTICK_RELOAD) */ + +#define NVIC_SYSTICK_RELOAD_SHIFT 0 /* Bits 23-0: Timer reload value */ +#define NVIC_SYSTICK_RELOAD_MASK (0x00ffffff << NVIC_SYSTICK_RELOAD_SHIFT) + +/* SysTick current value registe (SYSTICK_CURRENT) */ + +#define NVIC_SYSTICK_CURRENT_SHIFT 0 /* Bits 23-0: Timer current value */ +#define NVIC_SYSTICK_CURRENT_MASK (0x00ffffff << NVIC_SYSTICK_RELOAD_SHIFT) + +/* SysTick calibration value register (SYSTICK_CALIB) */ + +#define NVIC_SYSTICK_CALIB_TENMS_SHIFT 0 /* Bits 23-0: Calibration value */ +#define NVIC_SYSTICK_CALIB_TENMS_MASK (0x00ffffff << NVIC_SYSTICK_CALIB_TENMS_SHIFT) +#define NVIC_SYSTICK_CALIB_SKEW (1 << 30) /* Bit 30: Calibration value inexact */ +#define NVIC_SYSTICK_CALIB_NOREF (1 << 31) /* Bit 31: No external reference clock */ + +/* Interrupt control state register (INTCTRL) */ + +#define NVIC_INTCTRL_NMIPENDSET (1 << 31) /* Bit 31: Set pending NMI bit */ +#define NVIC_INTCTRL_PENDSVSET (1 << 28) /* Bit 28: Set pending PendSV bit */ +#define NVIC_INTCTRL_PENDSVCLR (1 << 27) /* Bit 27: Clear pending PendSV bit */ +#define NVIC_INTCTRL_PENDSTSET (1 << 26) /* Bit 26: Set pending SysTick bit */ +#define NVIC_INTCTRL_PENDSTCLR (1 << 25) /* Bit 25: Clear pending SysTick bit */ +#define NVIC_INTCTRL_ISPREEMPOT (1 << 23) /* Bit 23: Pending active next cycle */ +#define NVIC_INTCTRL_ISRPENDING (1 << 22) /* Bit 22: Interrupt pending flag */ +#define NVIC_INTCTRL_VECTPENDING_SHIFT 12 /* Bits 21-12: Pending ISR number field */ +#define NVIC_INTCTRL_VECTPENDING_MASK (0x3ff << NVIC_INTCTRL_VECTPENDING_SHIFT) +#define NVIC_INTCTRL_RETTOBASE (1 << 11) /* Bit 11: no other exceptions pending */ +#define NVIC_INTCTRL_VECTACTIVE_SHIFT 0 /* Bits 8-0: Active ISR number */ +#define NVIC_INTCTRL_VECTACTIVE_MASK (0x1ff << NVIC_INTCTRL_VECTACTIVE_SHIFT) + +/* System handler 4-7 priority register */ + +#define NVIC_SYSH_PRIORITY_PR4_SHIFT 0 +#define NVIC_SYSH_PRIORITY_PR4_MASK (0xff << NVIC_SYSH_PRIORITY_PR4_SHIFT) +#define NVIC_SYSH_PRIORITY_PR5_SHIFT 8 +#define NVIC_SYSH_PRIORITY_PR5_MASK (0xff << NVIC_SYSH_PRIORITY_PR5_SHIFT) +#define NVIC_SYSH_PRIORITY_PR6_SHIFT 16 +#define NVIC_SYSH_PRIORITY_PR6_MASK (0xff << NVIC_SYSH_PRIORITY_PR6_SHIFT) +#define NVIC_SYSH_PRIORITY_PR7_SHIFT 24 +#define NVIC_SYSH_PRIORITY_PR7_MASK (0xff << NVIC_SYSH_PRIORITY_PR7_SHIFT) + +/* System handler 8-11 priority register */ + +#define NVIC_SYSH_PRIORITY_PR8_SHIFT 0 +#define NVIC_SYSH_PRIORITY_PR8_MASK (0xff << NVIC_SYSH_PRIORITY_PR8_SHIFT) +#define NVIC_SYSH_PRIORITY_PR9_SHIFT 8 +#define NVIC_SYSH_PRIORITY_PR9_MASK (0xff << NVIC_SYSH_PRIORITY_PR9_SHIFT) +#define NVIC_SYSH_PRIORITY_PR10_SHIFT 16 +#define NVIC_SYSH_PRIORITY_PR10_MASK (0xff << NVIC_SYSH_PRIORITY_PR10_SHIFT) +#define NVIC_SYSH_PRIORITY_PR11_SHIFT 24 +#define NVIC_SYSH_PRIORITY_PR11_MASK (0xff << NVIC_SYSH_PRIORITY_PR11_SHIFT) + +/* System handler 12-15 priority register */ + +#define NVIC_SYSH_PRIORITY_PR12_SHIFT 0 +#define NVIC_SYSH_PRIORITY_PR12_MASK (0xff << NVIC_SYSH_PRIORITY_PR12_SHIFT) +#define NVIC_SYSH_PRIORITY_PR13_SHIFT 8 +#define NVIC_SYSH_PRIORITY_PR13_MASK (0xff << NVIC_SYSH_PRIORITY_PR13_SHIFT) +#define NVIC_SYSH_PRIORITY_PR14_SHIFT 16 +#define NVIC_SYSH_PRIORITY_PR14_MASK (0xff << NVIC_SYSH_PRIORITY_PR14_SHIFT) +#define NVIC_SYSH_PRIORITY_PR15_SHIFT 24 +#define NVIC_SYSH_PRIORITY_PR15_MASK (0xff << NVIC_SYSH_PRIORITY_PR15_SHIFT) + +/* System handler control and state register (SYSHCON) */ + +#define NVIC_SYSHCON_MEMFAULTACT (1 << 0) /* Bit 0: MemManage is active */ +#define NVIC_SYSHCON_BUSFAULTACT (1 << 1) /* Bit 1: BusFault is active */ +#define NVIC_SYSHCON_USGFAULTACT (1 << 3) /* Bit 3: UsageFault is active */ +#define NVIC_SYSHCON_SVCALLACT (1 << 7) /* Bit 7: SVCall is active */ +#define NVIC_SYSHCON_MONITORACT (1 << 8) /* Bit 8: Monitor is active */ +#define NVIC_SYSHCON_PENDSVACT (1 << 10) /* Bit 10: PendSV is active */ +#define NVIC_SYSHCON_SYSTICKACT (1 << 11) /* Bit 11: SysTick is active */ +#define NVIC_SYSHCON_USGFAULTPENDED (1 << 12) /* Bit 12: Usage fault is pended */ +#define NVIC_SYSHCON_MEMFAULTPENDED (1 << 13) /* Bit 13: MemManage is pended */ +#define NVIC_SYSHCON_BUSFAULTPENDED (1 << 14) /* Bit 14: BusFault is pended */ +#define NVIC_SYSHCON_SVCALLPENDED (1 << 15) /* Bit 15: SVCall is pended */ +#define NVIC_SYSHCON_MEMFAULTENA (1 << 16) /* Bit 16: MemFault enabled */ +#define NVIC_SYSHCON_BUSFAULTENA (1 << 17) /* Bit 17: BusFault enabled */ +#define NVIC_SYSHCON_USGFAULTENA (1 << 18) /* Bit 18: UsageFault enabled */ + +/************************************************************************************ + * Public Types + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Public Function Prototypes + ************************************************************************************/ + +#endif /* __ARCH_ARM_SRC_COMMON_CORTEXM3_NVIC_H */ diff --git a/nuttx/arch/arm/src/cortexm3/psr.h b/nuttx/arch/arm/src/cortexm3/psr.h new file mode 100644 index 000000000..dea45555a --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/psr.h @@ -0,0 +1,91 @@ +/************************************************************************************ + * arch/arm/src/cortexm3/psr.h + * + * Copyright (C) 2009 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_COMMON_CORTEXM_PSR_H +#define __ARCH_ARM_SRC_COMMON_CORTEXM_PSR_H + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#ifndef __ASSEMBLY__ +# include <sys/types.h> +#endif + +/************************************************************************************ + * Definitions + ************************************************************************************/ + +/* Application Program Status Register (APSR) */ + +#define CORTEXM3_APSR_Q (1 << 27) /* Bit 27: Sticky saturation flag */ +#define CORTEXM3_APSR_V (1 << 28) /* Bit 28: Overflow flag */ +#define CORTEXM3_APSR_C (1 << 29) /* Bit 29: Carry/borrow flag */ +#define CORTEXM3_APSR_Z (1 << 30) /* Bit 30: Zero flag */ +#define CORTEXM3_APSR_N (1 << 31) /* Bit 31: Negative, less than flag */ + +/* Interrupt Program Status Register (IPSR) */ + +#define CORTEXM3_IPSR_ISR_SHIFT 0 /* Bits 8-0: ISR number */ +#define CORTEXM3_IPSR_ISR_MASK (0x1ff << CORTEXM3_IPSR_ISR_SHIFT) + +/* Execution PSR Register (EPSR) */ + +#define CORTEXM3_EPSR_ICIIT1_SHIFT 10 /* Bits 15-10: Interrupt-Continuable-Instruction/If-Then bits */ +#define CORTEXM3_EPSR_ICIIT1_MASK (3 << CORTEXM3_EPSR_ICIIT1_SHIFT) +#define CORTEXM3_EPSR_T (1 << 24) /* Bit 24: T-bit */ +#define CORTEXM3_EPSR_ICIIT2_SHIFT 25 /* Bits 26-25: Interrupt-Continuable-Instruction/If-Then bits */ +#define CORTEXM3_EPSR_ICIIT2_MASK (3 << CORTEXM3_EPSR_ICIIT2_SHIFT) + +/* Save xPSR bits */ + +#define CORTEXM3_XPSR_ISR_SHIFT CORTEXM3_IPSR_ISR_SHIFT +#define CORTEXM3_XPSR_ISR_MASK CORTEXM3_IPSR_ISR_MASK +#define CORTEXM3_XPSR_ICIIT1_SHIFT CORTEXM3_EPSR_ICIIT1_SHIFT/ +#define CORTEXM3_XPSR_ICIIT1_MASK CORTEXM3_EPSR_ICIIT1_MASK +#define CORTEXM3_XPSR_T CORTEXM3_EPSR_T +#define CORTEXM3_XPSR_ICIIT2_SHIFT CORTEXM3_EPSR_ICIIT2_SHIFT +#define CORTEXM3_XPSR_ICIIT2_MASK CORTEXM3_EPSR_ICIIT2_MASK +#define CORTEXM3_XPSR_Q CORTEXM3_APSR_Q +#define CORTEXM3_XPSR_V CORTEXM3_APSR_V +#define CORTEXM3_XPSR_C CORTEXM3_APSR_C +#define CORTEXM3_XPSR_Z CORTEXM3_APSR_Z +#define CORTEXM3_XPSR_N CORTEXM3_APSR_N + +/************************************************************************************ + * Inline Functions + ************************************************************************************/ + +#endif /* __ARCH_ARM_SRC_COMMON_CORTEXM_PSR_H */ diff --git a/nuttx/arch/arm/src/cortexm3/up_assert.c b/nuttx/arch/arm/src/cortexm3/up_assert.c new file mode 100644 index 000000000..ec2339887 --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/up_assert.c @@ -0,0 +1,311 @@ +/**************************************************************************** + * arch/arm/src/cortexm3/up_assert.c + * + * Copyright (C) 2009 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <stdlib.h> +#include <assert.h> +#include <debug.h> + +#include <nuttx/irq.h> +#include <nuttx/arch.h> + +#include "up_arch.h" +#include "os_internal.h" +#include "up_internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/* Output debug info if stack dump is selected -- even if + * debug is not selected. + */ + +#ifdef CONFIG_ARCH_STACKDUMP +# undef lldbg +# define lldbg lib_lowprintf +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_getsp + ****************************************************************************/ + +/* I don't know if the builtin to get SP is enabled */ + +static inline uint32 up_getsp(void) +{ + uint32 sp; + __asm__ + ( + "\tmov %0, sp\n\t" + : "=r"(sp) + ); + return sp; +} + +/**************************************************************************** + * Name: up_stackdump + ****************************************************************************/ + +#ifdef CONFIG_ARCH_STACKDUMP +static void up_stackdump(uint32 sp, uint32 stack_base) +{ + uint32 stack ; + + for (stack = sp & ~0x1f; stack < stack_base; stack += 32) + { + uint32 *ptr = (uint32*)stack; + lldbg("%08x: %08x %08x %08x %08x %08x %08x %08x %08x\n", + stack, ptr[0], ptr[1], ptr[2], ptr[3], + ptr[4], ptr[5], ptr[6], ptr[7]); + } +} +#else +# define up_stackdump() +#endif + +/**************************************************************************** + * Name: up_registerdump + ****************************************************************************/ + +#ifdef CONFIG_ARCH_STACKDUMP +static inline void up_registerdump(void) +{ + /* Are user registers available from interrupt processing? */ + + if (current_regs) + { + /* Yes.. dump the interrupt registers */ + + lldbg("R0: %08x %08x %08x %08x %08x %08x %08x %08x\n", + current_regs[REG_R0], current_regs[REG_R1], + current_regs[REG_R2], current_regs[REG_R3], + current_regs[REG_R4], current_regs[REG_R5], + current_regs[REG_R6], current_regs[REG_R7]); + lldbg("R8: %08x %08x %08x %08x %08x %08x %08x %08x\n", + current_regs[REG_R8], current_regs[REG_R9], + current_regs[REG_R10], current_regs[REG_R11], + current_regs[REG_R12], current_regs[REG_R13], + current_regs[REG_R14], current_regs[REG_R15]); + lldbg("xPSR: %08x PRIMASK: %08x\n", + current_regs[REG_XPSR], current_regs[REG_PRIMASK]); + } +} +#else +# define up_registerdump() +#endif + +/**************************************************************************** + * Name: up_dumpstate + ****************************************************************************/ + +#ifdef CONFIG_ARCH_STACKDUMP +static void up_dumpstate(void) +{ + _TCB *rtcb = (_TCB*)g_readytorun.head; + uint32 sp = up_getsp(); + uint32 ustackbase; + uint32 ustacksize; +#if CONFIG_ARCH_INTERRUPTSTACK > 3 + uint32 istackbase; + uint32 istacksize; +#endif + + /* Get the limits on the user stack memory */ + + if (rtcb->pid == 0) + { + ustackbase = g_heapbase - 4; + ustacksize = CONFIG_IDLETHREAD_STACKSIZE; + } + else + { + ustackbase = (uint32)rtcb->adj_stack_ptr; + ustacksize = (uint32)rtcb->adj_stack_size; + } + + /* Get the limits on the interrupt stack memory */ + +#if CONFIG_ARCH_INTERRUPTSTACK > 3 + istackbase = (uint32)&g_userstack; + istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4; + + /* Show interrupt stack info */ + + lldbg("sp: %08x\n", sp); + lldbg("IRQ stack:\n"); + lldbg(" base: %08x\n", istackbase); + lldbg(" size: %08x\n", istacksize); + + /* Does the current stack pointer lie within the interrupt + * stack? + */ + + if (sp <= istackbase && sp > istackbase - istacksize) + { + /* Yes.. dump the interrupt stack */ + + up_stackdump(sp, istackbase); + + /* Extract the user stack pointer which should lie + * at the base of the interrupt stack. + */ + + sp = g_userstack; + lldbg("sp: %08x\n", sp); + } + + /* Show user stack info */ + + lldbg("User stack:\n"); + lldbg(" base: %08x\n", ustackbase); + lldbg(" size: %08x\n", ustacksize); +#else + lldbg("sp: %08x\n", sp); + lldbg("stack base: %08x\n", ustackbase); + lldbg("stack size: %08x\n", ustacksize); +#endif + + /* Dump the user stack if the stack pointer lies within the allocated user + * stack memory. + */ + + if (sp > ustackbase || sp <= ustackbase - ustacksize) + { +#if !defined(CONFIG_ARCH_INTERRUPTSTACK) || CONFIG_ARCH_INTERRUPTSTACK < 4 + lldbg("ERROR: Stack pointer is not within allocated stack\n"); +#endif + } + else + { + up_stackdump(sp, ustackbase); + } + + /* Then dump the registers (if available) */ + + up_registerdump(); +} +#else +# define up_dumpstate() +#endif + +/**************************************************************************** + * Name: _up_assert + ****************************************************************************/ + +static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */ +{ + /* Are we in an interrupt handler or the idle task? */ + + if (current_regs || ((_TCB*)g_readytorun.head)->pid == 0) + { + (void)irqsave(); + for(;;) + { +#ifdef CONFIG_ARCH_LEDS + up_ledon(LED_PANIC); + up_mdelay(250); + up_ledoff(LED_PANIC); + up_mdelay(250); +#endif + } + } + else + { + exit(errorcode); + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_assert + ****************************************************************************/ + +void up_assert(const ubyte *filename, int lineno) +{ +#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG) + _TCB *rtcb = (_TCB*)g_readytorun.head; +#endif + + up_ledon(LED_ASSERTION); +#if CONFIG_TASK_NAME_SIZE > 0 + lldbg("Assertion failed at file:%s line: %d task: %s\n", + filename, lineno, rtcb->name); +#else + lldbg("Assertion failed at file:%s line: %d\n", + filename, lineno); +#endif + up_dumpstate(); + _up_assert(EXIT_FAILURE); +} + +/**************************************************************************** + * Name: up_assert_code + ****************************************************************************/ + +void up_assert_code(const ubyte *filename, int lineno, int errorcode) +{ +#if CONFIG_TASK_NAME_SIZE > 0 && defined(CONFIG_DEBUG) + _TCB *rtcb = (_TCB*)g_readytorun.head; +#endif + + up_ledon(LED_ASSERTION); +#if CONFIG_TASK_NAME_SIZE > 0 + lldbg("Assertion failed at file:%s line: %d task: %s error code: %d\n", + filename, lineno, rtcb->name, errorcode); +#else + lldbg("Assertion failed at file:%s line: %d error code: %d\n", + filename, lineno, errorcode); +#endif + up_dumpstate(); + _up_assert(errorcode); +} diff --git a/nuttx/arch/arm/src/cortexm3/up_copystate.c b/nuttx/arch/arm/src/cortexm3/up_copystate.c new file mode 100644 index 000000000..a7e7b1166 --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/up_copystate.c @@ -0,0 +1,86 @@ +/**************************************************************************** + * arch/arm/src/cortexm3/up_copystate.c + * + * Copyright (C) 2009 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> + +#include "os_internal.h" +#include "up_internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_undefinedinsn + ****************************************************************************/ + +/* A little faster than most memcpy's */ + +void up_copystate(uint32 *dest, uint32 *src) +{ + int i; + + /* In the Cortex-M3 model, the state is copied from the stack to the TCB, + * but only a reference is passed to get the state from the TCB. So the + * following check avoids copying the TCB save area onto itself: + */ + + if (src != dest) + { + for (i = 0; i < XCPTCONTEXT_REGS; i++) + { + *dest++ = *src++; + } + } +} + diff --git a/nuttx/arch/arm/src/cortexm3/up_doirq.c b/nuttx/arch/arm/src/cortexm3/up_doirq.c new file mode 100644 index 000000000..8c749ce5f --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/up_doirq.c @@ -0,0 +1,113 @@ +/**************************************************************************** + * arch/arm/src/cortexm3/up_doirq.c + * + * Copyright (C) 2009 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include <nuttx/irq.h> +#include <nuttx/arch.h> +#include <assert.h> +#include "up_arch.h" +#include "os_internal.h" +#include "up_internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +uint32 *up_doirq(int irq, uint32 *regs) +{ + up_ledon(LED_INIRQ); +#ifdef CONFIG_SUPPRESS_INTERRUPTS + PANIC(OSERR_ERREXCEPTION); +#else + if ((unsigned)irq < NR_IRQS) + { + /* Current regs non-zero indicates that we are processing + * an interrupt; current_regs is also used to manage + * interrupt level context switches. + */ + + current_regs = regs; + + /* Mask and acknowledge the interrupt */ + + up_maskack_irq(irq); + + /* Deliver the IRQ */ + + irq_dispatch(irq, regs); + + /* If a context switch occurred while processing the interrupt + * then current_regs may have change value. If we return any value + * different from the input regs, then the lower level will know + * that a context switch occurred during interrupt processing. + */ + + regs = current_regs; + + /* Indicate that we are no long in an interrupt handler */ + + current_regs = NULL; + + /* Unmask the last interrupt (global interrupts are still + * disabled. + */ + + up_enable_irq(irq); + } + up_ledoff(LED_INIRQ); +#endif + return regs; +} diff --git a/nuttx/arch/arm/src/cortexm3/up_initialstate.c b/nuttx/arch/arm/src/cortexm3/up_initialstate.c new file mode 100644 index 000000000..c529064d4 --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/up_initialstate.c @@ -0,0 +1,106 @@ +/**************************************************************************** + * arch/arm/src/cortexm3/up_initialstate.c + * + * Copyright (C) 2009 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include <string.h> + +#include <nuttx/arch.h> + +#include "up_internal.h" +#include "up_arch.h" +#include "psr.h" + +/**************************************************************************** + * Private Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_initial_state + * + * Description: + * A new thread is being started and a new TCB + * has been created. This function is called to initialize + * the processor specific portions of the new TCB. + * + * This function must setup the intial architecture registers + * and/or stack so that execution will begin at tcb->start + * on the next context switch. + * + ****************************************************************************/ + +void up_initial_state(_TCB *tcb) +{ + struct xcptcontext *xcp = &tcb->xcp; + + /* Initialize the initial exception register context structure */ + + memset(xcp, 0, sizeof(struct xcptcontext)); + + /* Save the initial stack pointer */ + + xcp->regs[REG_SP] = (uint32)tcb->adj_stack_ptr; + + /* Save the task entry point (stripping off the thumb bit) */ + + xcp->regs[REG_PC] = (uint32)tcb->start & ~1; + + /* Specify thumb mode */ + + xcp->regs[REG_XPSR] = CORTEXM3_XPSR_T; + + /* Enable or disable interrupts, based on user configuration */ + +# ifdef CONFIG_SUPPRESS_INTERRUPTS + xcp->regs[REG_PRIMASK] = 1; +# endif +} + diff --git a/nuttx/arch/arm/src/cortexm3/up_schedulesigaction.c b/nuttx/arch/arm/src/cortexm3/up_schedulesigaction.c new file mode 100644 index 000000000..31219874b --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/up_schedulesigaction.c @@ -0,0 +1,208 @@ +/**************************************************************************** + * arch/arm/src/cortexm3/up_schedulesigaction.c + * + * Copyright (C) 2009 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <sched.h> +#include <debug.h> + +#include <nuttx/arch.h> + +#include "psr.h" +#include "os_internal.h" +#include "up_internal.h" +#include "up_arch.h" + +#ifndef CONFIG_DISABLE_SIGNALS + +/**************************************************************************** + * Private Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_schedule_sigaction + * + * Description: + * This function is called by the OS when one or more + * signal handling actions have been queued for execution. + * The architecture specific code must configure things so + * that the 'igdeliver' callback is executed on the thread + * specified by 'tcb' as soon as possible. + * + * This function may be called from interrupt handling logic. + * + * This operation should not cause the task to be unblocked + * nor should it cause any immediate execution of sigdeliver. + * Typically, a few cases need to be considered: + * + * (1) This function may be called from an interrupt handler + * During interrupt processing, all xcptcontext structures + * should be valid for all tasks. That structure should + * be modified to invoke sigdeliver() either on return + * from (this) interrupt or on some subsequent context + * switch to the recipient task. + * (2) If not in an interrupt handler and the tcb is NOT + * the currently executing task, then again just modify + * the saved xcptcontext structure for the recipient + * task so it will invoke sigdeliver when that task is + * later resumed. + * (3) If not in an interrupt handler and the tcb IS the + * currently executing task -- just call the signal + * handler now. + * + ****************************************************************************/ + +void up_schedule_sigaction(_TCB *tcb, sig_deliver_t sigdeliver) +{ + /* Refuse to handle nested signal actions */ + + sdbg("tcb=0x%p sigdeliver=0x%p\n", tcb, sigdeliver); + + if (!tcb->xcp.sigdeliver) + { + irqstate_t flags; + + /* Make sure that interrupts are disabled */ + + flags = irqsave(); + + /* First, handle some special cases when the signal is + * being delivered to the currently executing task. + */ + + sdbg("rtcb=0x%p current_regs=0x%p\n", g_readytorun.head, current_regs); + + if (tcb == (_TCB*)g_readytorun.head) + { + /* CASE 1: We are not in an interrupt handler and + * a task is signalling itself for some reason. + */ + + if (!current_regs) + { + /* In this case just deliver the signal now. */ + + sigdeliver(tcb); + } + + /* CASE 2: We are in an interrupt handler AND the + * interrupted task is the same as the one that + * must receive the signal, then we will have to modify + * the return state as well as the state in the TCB. + * + * Hmmm... there looks like a latent bug here: The following + * logic would fail in the strange case where we are in an + * interrupt handler, the thread is signalling itself, but + * a context switch to another task has occurred so that + * current_regs does not refer to the thread at g_readytorun.head! + */ + + else + { + /* Save the return lr and cpsr and one scratch register + * These will be restored by the signal trampoline after + * the signals have been delivered. + */ + + tcb->xcp.sigdeliver = sigdeliver; + tcb->xcp.saved_pc = current_regs[REG_PC]; + tcb->xcp.saved_primask = current_regs[REG_PRIMASK]; + tcb->xcp.saved_xpsr = current_regs[REG_XPSR]; + + /* Then set up to vector to the trampoline with interrupts + * disabled + */ + + current_regs[REG_PC] = (uint32)up_sigdeliver; + current_regs[REG_PRIMASK] = 1; + current_regs[REG_XPSR] = CORTEXM3_XPSR_T; + + /* And make sure that the saved context in the TCB + * is the same as the interrupt return context. + */ + + up_savestate(tcb->xcp.regs); + } + } + + /* Otherwise, we are (1) signaling a task is not running + * from an interrupt handler or (2) we are not in an + * interrupt handler and the running task is signalling + * some non-running task. + */ + + else + { + /* Save the return lr and cpsr and one scratch register + * These will be restored by the signal trampoline after + * the signals have been delivered. + */ + + tcb->xcp.sigdeliver = sigdeliver; + tcb->xcp.saved_pc = tcb->xcp.regs[REG_PC]; + tcb->xcp.saved_primask = tcb->xcp.regs[REG_PRIMASK]; + tcb->xcp.saved_xpsr = tcb->xcp.regs[REG_XPSR]; + + /* Then set up to vector to the trampoline with interrupts + * disabled + */ + + tcb->xcp.regs[REG_PC] = (uint32)up_sigdeliver; + tcb->xcp.regs[REG_PRIMASK] = 1; + tcb->xcp.regs[REG_XPSR] = CORTEXM3_XPSR_T; + } + + irqrestore(flags); + } +} + +#endif /* !CONFIG_DISABLE_SIGNALS */ diff --git a/nuttx/arch/arm/src/cortexm3/up_sigdeliver.c b/nuttx/arch/arm/src/cortexm3/up_sigdeliver.c new file mode 100644 index 000000000..d0241dfa1 --- /dev/null +++ b/nuttx/arch/arm/src/cortexm3/up_sigdeliver.c @@ -0,0 +1,144 @@ +/**************************************************************************** + * arch/arm/src/cortexm3/up_sigdeliver.c + * + * Copyright (C) 2009 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <sys/types.h> +#include <sched.h> +#include <debug.h> + +#include <nuttx/irq.h> +#include <nuttx/arch.h> + +#include "os_internal.h" +#include "up_internal.h" +#include "up_arch.h" + +#ifndef CONFIG_DISABLE_SIGNALS + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_sigdeliver + * + * Description: + * This is the a signal handling trampoline. When a + * signal action was posted. The task context was mucked + * with and forced to branch to this location with interrupts + * disabled. + * + ****************************************************************************/ + +void up_sigdeliver(void) +{ + _TCB *rtcb = (_TCB*)g_readytorun.head; + uint32 regs[XCPTCONTEXT_REGS]; + sig_deliver_t sigdeliver; + + /* Save the errno. This must be preserved throughout the + * signal handling so that the the user code final gets + * the correct errno value (probably EINTR). + */ + + int saved_errno = rtcb->pterrno; + + up_ledon(LED_SIGNAL); + + sdbg("rtcb=%p sigdeliver=%p sigpendactionq.head=%p\n", + rtcb, rtcb->xcp.sigdeliver, rtcb->sigpendactionq.head); + ASSERT(rtcb->xcp.sigdeliver != NULL); + + /* Save the real return state on the stack. */ + + up_copystate(regs, rtcb->xcp.regs); + regs[REG_PC] = rtcb->xcp.saved_pc; + regs[REG_PRIMASK] = rtcb->xcp.saved_primask; + regs[REG_XPSR] = rtcb->xcp.saved_xpsr; + + /* Get a local copy of the sigdeliver function pointer. + * we do this so that we can nullify the sigdeliver + * function point in the TCB and accept more signal + * deliveries while processing the current pending + * signals. + */ + + sigdeliver = rtcb->xcp.sigdeliver; + rtcb->xcp.sigdeliver = NULL; + + /* Then restore the task interrupt statat. */ + + irqrestore((uint16)regs[REG_PRIMASK]); + + /* Deliver the signals */ + + sigdeliver(rtcb); + + /* Output any debug messaged BEFORE restoreing errno + * (becuase they may alter errno), then restore the + * original errno that is needed by the user logic + * (it is probably EINTR). + */ + + sdbg("Resuming\n"); + rtcb->pterrno = saved_errno; + + /* Then restore the correct state for this thread of + * execution. + */ + + up_ledoff(LED_SIGNAL); + up_fullcontextrestore(regs); +} + +#endif /* !CONFIG_DISABLE_SIGNALS */ + |