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Diffstat (limited to 'os/ports/RVCT/ARMCMx/nvic.h')
| -rw-r--r-- | os/ports/RVCT/ARMCMx/nvic.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/os/ports/RVCT/ARMCMx/nvic.h b/os/ports/RVCT/ARMCMx/nvic.h new file mode 100644 index 000000000..321a0ed7b --- /dev/null +++ b/os/ports/RVCT/ARMCMx/nvic.h @@ -0,0 +1,192 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file IAR/ARMCMx/nvic.h
+ * @brief Cortex-Mx NVIC support macros and structures.
+ *
+ * @addtogroup IAR_ARMCMx_NVIC
+ * @{
+ */
+
+#ifndef _NVIC_H_
+#define _NVIC_H_
+
+/*
+ * System vector constants for @p NVICSetSystemHandlerPriority().
+ */
+#define HANDLER_MEM_MANAGE 0 /**< MEM MANAGE vector id. */
+#define HANDLER_BUS_FAULT 1 /**< BUS FAULT vector id. */
+#define HANDLER_USAGE_FAULT 2 /**< USAGE FAULT vector id. */
+#define HANDLER_RESERVED_3 3
+#define HANDLER_RESERVED_4 4
+#define HANDLER_RESERVED_5 5
+#define HANDLER_RESERVED_6 6
+#define HANDLER_SVCALL 7 /**< SVCALL vector id. */
+#define HANDLER_DEBUG_MONITOR 8 /**< DEBUG MONITOR vector id. */
+#define HANDLER_RESERVED_9 9
+#define HANDLER_PENDSV 10 /**< PENDSV vector id. */
+#define HANDLER_SYSTICK 11 /**< SYS TCK vector id. */
+
+typedef volatile uint8_t IOREG8; /**< 8 bits I/O register type. */
+typedef volatile uint32_t IOREG32; /**< 32 bits I/O register type. */
+
+/**
+ * @brief NVIC ITCR register.
+ */
+#define NVIC_ITCR (*((IOREG32 *)0xE000E004))
+
+/**
+ * @brief NVIC STIR register.
+ */
+#define NVIC_STIR (*((IOREG32 *)0xE000EF00))
+
+/**
+ * @brief Structure representing the SYSTICK I/O space.
+ */
+typedef struct {
+ IOREG32 CSR;
+ IOREG32 RVR;
+ IOREG32 CVR;
+ IOREG32 CBVR;
+} CM3_ST;
+
+/**
+ * @brief SYSTICK peripheral base address.
+ */
+#define STBase ((CM3_ST *)0xE000E010)
+#define ST_CSR (STBase->CSR)
+#define ST_RVR (STBase->RVR)
+#define ST_CVR (STBase->CVR)
+#define ST_CBVR (STBase->CBVR)
+
+#define CSR_ENABLE_MASK (0x1 << 0)
+#define ENABLE_OFF_BITS (0 << 0)
+#define ENABLE_ON_BITS (1 << 0)
+#define CSR_TICKINT_MASK (0x1 << 1)
+#define TICKINT_DISABLED_BITS (0 << 1)
+#define TICKINT_ENABLED_BITS (1 << 1)
+#define CSR_CLKSOURCE_MASK (0x1 << 2)
+#define CLKSOURCE_EXT_BITS (0 << 2)
+#define CLKSOURCE_CORE_BITS (1 << 2)
+#define CSR_COUNTFLAG_MASK (0x1 << 16)
+
+#define RVR_RELOAD_MASK (0xFFFFFF << 0)
+
+#define CVR_CURRENT_MASK (0xFFFFFF << 0)
+
+#define CBVR_TENMS_MASK (0xFFFFFF << 0)
+#define CBVR_SKEW_MASK (0x1 << 30)
+#define CBVR_NOREF_MASK (0x1 << 31)
+
+/**
+ * @brief Structure representing the NVIC I/O space.
+ */
+typedef struct {
+ IOREG32 ISER[8];
+ IOREG32 unused1[24];
+ IOREG32 ICER[8];
+ IOREG32 unused2[24];
+ IOREG32 ISPR[8];
+ IOREG32 unused3[24];
+ IOREG32 ICPR[8];
+ IOREG32 unused4[24];
+ IOREG32 IABR[8];
+ IOREG32 unused5[56];
+ IOREG32 IPR[60];
+} CM3_NVIC;
+
+/**
+ * @brief NVIC peripheral base address.
+ */
+#define NVICBase ((CM3_NVIC *)0xE000E100)
+#define NVIC_ISER(n) (NVICBase->ISER[n])
+#define NVIC_ICER(n) (NVICBase->ICER[n])
+#define NVIC_ISPR(n) (NVICBase->ISPR[n])
+#define NVIC_ICPR(n) (NVICBase->ICPR[n])
+#define NVIC_IABR(n) (NVICBase->IABR[n])
+#define NVIC_IPR(n) (NVICBase->IPR[n])
+
+/**
+ * @brief Structure representing the System Control Block I/O space.
+ */
+typedef struct {
+ IOREG32 CPUID;
+ IOREG32 ICSR;
+ IOREG32 VTOR;
+ IOREG32 AIRCR;
+ IOREG32 SCR;
+ IOREG32 CCR;
+ IOREG32 SHPR[3];
+ IOREG32 SHCSR;
+ IOREG32 CFSR;
+ IOREG32 HFSR;
+ IOREG32 DFSR;
+ IOREG32 MMFAR;
+ IOREG32 BFAR;
+ IOREG32 AFSR;
+} CM3_SCB;
+
+/**
+ * @brief SCB peripheral base address.
+ */
+#define SCBBase ((CM3_SCB *)0xE000ED00)
+#define SCB_CPUID (SCBBase->CPUID)
+#define SCB_ICSR (SCBBase->ICSR)
+#define SCB_VTOR (SCBBase->VTOR)
+#define SCB_AIRCR (SCBBase->AIRCR)
+#define SCB_SCR (SCBBase->SCR)
+#define SCB_CCR (SCBBase->CCR)
+#define SCB_SHPR(n) (SCBBase->SHPR[n])
+#define SCB_SHCSR (SCBBase->SHCSR)
+#define SCB_CFSR (SCBBase->CFSR)
+#define SCB_HFSR (SCBBase->HFSR)
+#define SCB_DFSR (SCBBase->DFSR)
+#define SCB_MMFAR (SCBBase->MMFAR)
+#define SCB_BFAR (SCBBase->BFAR)
+#define SCB_AFSR (SCBBase->AFSR)
+
+#define ICSR_VECTACTIVE_MASK (0x1FF << 0)
+#define ICSR_RETTOBASE (0x1 << 11)
+#define ICSR_VECTPENDING_MASK (0x1FF << 12)
+#define ICSR_ISRPENDING (0x1 << 22)
+#define ICSR_ISRPREEMPT (0x1 << 23)
+#define ICSR_PENDSTCLR (0x1 << 25)
+#define ICSR_PENDSTSET (0x1 << 26)
+#define ICSR_PENDSVCLR (0x1 << 27)
+#define ICSR_PENDSVSET (0x1 << 28)
+#define ICSR_NMIPENDSET (0x1 << 31)
+
+#define AIRCR_VECTKEY 0x05FA0000
+#define AIRCR_PRIGROUP_MASK (0x7 << 8)
+#define AIRCR_PRIGROUP(n) ((n) << 8)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void NVICEnableVector(uint32_t n, uint32_t prio);
+ void NVICDisableVector(uint32_t n);
+ void NVICSetSystemHandlerPriority(uint32_t handler, uint32_t prio);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _NVIC_H_ */
+
+/** @} */
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