+++ /dev/null
-/******************************************************************************
- * @file: core_cm3.c
- * @purpose: CMSIS Cortex-M3 Core Peripheral Access Layer Source File
- * @version: V1.20
- * @date: 22. May 2009
- *----------------------------------------------------------------------------
- *
- * Copyright (C) 2009 ARM Limited. All rights reserved.
- *
- * ARM Limited (ARM) is supplying this software for use with Cortex-Mx
- * processor based microcontrollers. This file can be freely distributed
- * within development tools that are supporting such ARM based processors.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
- * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
- * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
- * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
- *
- ******************************************************************************/
-
-
-
-#include <stdint.h>
-
-
-/* define compiler specific symbols */
-#if defined ( __CC_ARM )
- #define __ASM __asm /*!< asm keyword for armcc */
- #define __INLINE __inline /*!< inline keyword for armcc */
-
-#elif defined ( __ICCARM__ )
- #define __ASM __asm /*!< asm keyword for iarcc */
- #define __INLINE inline /*!< inline keyword for iarcc. Only avaiable in High optimization mode! */
-
-#elif defined ( __GNUC__ )
- #define __ASM __asm /*!< asm keyword for gcc */
- #define __INLINE inline /*!< inline keyword for gcc */
-
-#elif defined ( __TASKING__ )
- #define __ASM __asm /*!< asm keyword for TASKING Compiler */
- #define __INLINE inline /*!< inline keyword for TASKING Compiler */
-
-#endif
-
-
-
-#if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/
-
-/**
- * @brief Return the Process Stack Pointer
- *
- * @param none
- * @return uint32_t ProcessStackPointer
- *
- * Return the actual process stack pointer
- */
-__ASM uint32_t __get_PSP(void)
-{
- mrs r0, psp
- bx lr
-}
-
-/**
- * @brief Set the Process Stack Pointer
- *
- * @param uint32_t Process Stack Pointer
- * @return none
- *
- * Assign the value ProcessStackPointer to the MSP
- * (process stack pointer) Cortex processor register
- */
-__ASM void __set_PSP(uint32_t topOfProcStack)
-{
- msr psp, r0
- bx lr
-}
-
-/**
- * @brief Return the Main Stack Pointer
- *
- * @param none
- * @return uint32_t Main Stack Pointer
- *
- * Return the current value of the MSP (main stack pointer)
- * Cortex processor register
- */
-__ASM uint32_t __get_MSP(void)
-{
- mrs r0, msp
- bx lr
-}
-
-/**
- * @brief Set the Main Stack Pointer
- *
- * @param uint32_t Main Stack Pointer
- * @return none
- *
- * Assign the value mainStackPointer to the MSP
- * (main stack pointer) Cortex processor register
- */
-__ASM void __set_MSP(uint32_t mainStackPointer)
-{
- msr msp, r0
- bx lr
-}
-
-/**
- * @brief Reverse byte order in unsigned short value
- *
- * @param uint16_t value to reverse
- * @return uint32_t reversed value
- *
- * Reverse byte order in unsigned short value
- */
-__ASM uint32_t __REV16(uint16_t value)
-{
- rev16 r0, r0
- bx lr
-}
-
-/**
- * @brief Reverse byte order in signed short value with sign extension to integer
- *
- * @param int16_t value to reverse
- * @return int32_t reversed value
- *
- * Reverse byte order in signed short value with sign extension to integer
- */
-__ASM int32_t __REVSH(int16_t value)
-{
- revsh r0, r0
- bx lr
-}
-
-
-#if (__ARMCC_VERSION < 400000)
-
-/**
- * @brief Remove the exclusive lock created by ldrex
- *
- * @param none
- * @return none
- *
- * Removes the exclusive lock which is created by ldrex.
- */
-__ASM void __CLREX(void)
-{
- clrex
-}
-
-/**
- * @brief Return the Base Priority value
- *
- * @param none
- * @return uint32_t BasePriority
- *
- * Return the content of the base priority register
- */
-__ASM uint32_t __get_BASEPRI(void)
-{
- mrs r0, basepri
- bx lr
-}
-
-/**
- * @brief Set the Base Priority value
- *
- * @param uint32_t BasePriority
- * @return none
- *
- * Set the base priority register
- */
-__ASM void __set_BASEPRI(uint32_t basePri)
-{
- msr basepri, r0
- bx lr
-}
-
-/**
- * @brief Return the Priority Mask value
- *
- * @param none
- * @return uint32_t PriMask
- *
- * Return the state of the priority mask bit from the priority mask
- * register
- */
-__ASM uint32_t __get_PRIMASK(void)
-{
- mrs r0, primask
- bx lr
-}
-
-/**
- * @brief Set the Priority Mask value
- *
- * @param uint32_t PriMask
- * @return none
- *
- * Set the priority mask bit in the priority mask register
- */
-__ASM void __set_PRIMASK(uint32_t priMask)
-{
- msr primask, r0
- bx lr
-}
-
-/**
- * @brief Return the Fault Mask value
- *
- * @param none
- * @return uint32_t FaultMask
- *
- * Return the content of the fault mask register
- */
-__ASM uint32_t __get_FAULTMASK(void)
-{
- mrs r0, faultmask
- bx lr
-}
-
-/**
- * @brief Set the Fault Mask value
- *
- * @param uint32_t faultMask value
- * @return none
- *
- * Set the fault mask register
- */
-__ASM void __set_FAULTMASK(uint32_t faultMask)
-{
- msr faultmask, r0
- bx lr
-}
-
-/**
- * @brief Return the Control Register value
- *
- * @param none
- * @return uint32_t Control value
- *
- * Return the content of the control register
- */
-__ASM uint32_t __get_CONTROL(void)
-{
- mrs r0, control
- bx lr
-}
-
-/**
- * @brief Set the Control Register value
- *
- * @param uint32_t Control value
- * @return none
- *
- * Set the control register
- */
-__ASM void __set_CONTROL(uint32_t control)
-{
- msr control, r0
- bx lr
-}
-
-#endif /* __ARMCC_VERSION */
-
-
-#elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/
-#pragma diag_suppress=Pe940
-
-/**
- * @brief Return the Process Stack Pointer
- *
- * @param none
- * @return uint32_t ProcessStackPointer
- *
- * Return the actual process stack pointer
- */
-uint32_t __get_PSP(void)
-{
- __ASM("mrs r0, psp");
- __ASM("bx lr");
-}
-
-/**
- * @brief Set the Process Stack Pointer
- *
- * @param uint32_t Process Stack Pointer
- * @return none
- *
- * Assign the value ProcessStackPointer to the MSP
- * (process stack pointer) Cortex processor register
- */
-void __set_PSP(uint32_t topOfProcStack)
-{
- __ASM("msr psp, r0");
- __ASM("bx lr");
-}
-
-/**
- * @brief Return the Main Stack Pointer
- *
- * @param none
- * @return uint32_t Main Stack Pointer
- *
- * Return the current value of the MSP (main stack pointer)
- * Cortex processor register
- */
-uint32_t __get_MSP(void)
-{
- __ASM("mrs r0, msp");
- __ASM("bx lr");
-}
-
-/**
- * @brief Set the Main Stack Pointer
- *
- * @param uint32_t Main Stack Pointer
- * @return none
- *
- * Assign the value mainStackPointer to the MSP
- * (main stack pointer) Cortex processor register
- */
-void __set_MSP(uint32_t topOfMainStack)
-{
- __ASM("msr msp, r0");
- __ASM("bx lr");
-}
-
-/**
- * @brief Reverse byte order in unsigned short value
- *
- * @param uint16_t value to reverse
- * @return uint32_t reversed value
- *
- * Reverse byte order in unsigned short value
- */
-uint32_t __REV16(uint16_t value)
-{
- __ASM("rev16 r0, r0");
- __ASM("bx lr");
-}
-
-/**
- * @brief Reverse bit order of value
- *
- * @param uint32_t value to reverse
- * @return uint32_t reversed value
- *
- * Reverse bit order of value
- */
-uint32_t __RBIT(uint32_t value)
-{
- __ASM("rbit r0, r0");
- __ASM("bx lr");
-}
-
-/**
- * @brief LDR Exclusive
- *
- * @param uint8_t* address
- * @return uint8_t value of (*address)
- *
- * Exclusive LDR command
- */
-uint8_t __LDREXB(uint8_t *addr)
-{
- __ASM("ldrexb r0, [r0]");
- __ASM("bx lr");
-}
-
-/**
- * @brief LDR Exclusive
- *
- * @param uint16_t* address
- * @return uint16_t value of (*address)
- *
- * Exclusive LDR command
- */
-uint16_t __LDREXH(uint16_t *addr)
-{
- __ASM("ldrexh r0, [r0]");
- __ASM("bx lr");
-}
-
-/**
- * @brief LDR Exclusive
- *
- * @param uint32_t* address
- * @return uint32_t value of (*address)
- *
- * Exclusive LDR command
- */
-uint32_t __LDREXW(uint32_t *addr)
-{
- __ASM("ldrex r0, [r0]");
- __ASM("bx lr");
-}
-
-/**
- * @brief STR Exclusive
- *
- * @param uint8_t *address
- * @param uint8_t value to store
- * @return uint32_t successful / failed
- *
- * Exclusive STR command
- */
-uint32_t __STREXB(uint8_t value, uint8_t *addr)
-{
- __ASM("strexb r0, r0, [r1]");
- __ASM("bx lr");
-}
-
-/**
- * @brief STR Exclusive
- *
- * @param uint16_t *address
- * @param uint16_t value to store
- * @return uint32_t successful / failed
- *
- * Exclusive STR command
- */
-uint32_t __STREXH(uint16_t value, uint16_t *addr)
-{
- __ASM("strexh r0, r0, [r1]");
- __ASM("bx lr");
-}
-
-/**
- * @brief STR Exclusive
- *
- * @param uint32_t *address
- * @param uint32_t value to store
- * @return uint32_t successful / failed
- *
- * Exclusive STR command
- */
-uint32_t __STREXW(uint32_t value, uint32_t *addr)
-{
- __ASM("strex r0, r0, [r1]");
- __ASM("bx lr");
-}
-
-#pragma diag_default=Pe940
-
-
-#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/
-
-/**
- * @brief Return the Process Stack Pointer
- *
- * @param none
- * @return uint32_t ProcessStackPointer
- *
- * Return the actual process stack pointer
- */
-uint32_t __get_PSP(void) __attribute__( ( naked ) );
-uint32_t __get_PSP(void)
-{
- uint32_t result=0;
-
- __ASM volatile ("MRS %0, psp\n\t"
- "MOV r0, %0 \n\t"
- "BX lr \n\t" : "=r" (result) );
- return(result);
-}
-
-
-/**
- * @brief Set the Process Stack Pointer
- *
- * @param uint32_t Process Stack Pointer
- * @return none
- *
- * Assign the value ProcessStackPointer to the MSP
- * (process stack pointer) Cortex processor register
- */
-void __set_PSP(uint32_t topOfProcStack) __attribute__( ( naked ) );
-void __set_PSP(uint32_t topOfProcStack)
-{
- __ASM volatile ("MSR psp, %0\n\t"
- "BX lr \n\t" : : "r" (topOfProcStack) );
-}
-
-/**
- * @brief Return the Main Stack Pointer
- *
- * @param none
- * @return uint32_t Main Stack Pointer
- *
- * Return the current value of the MSP (main stack pointer)
- * Cortex processor register
- */
-uint32_t __get_MSP(void) __attribute__( ( naked ) );
-uint32_t __get_MSP(void)
-{
- uint32_t result=0;
-
- __ASM volatile ("MRS %0, msp\n\t"
- "MOV r0, %0 \n\t"
- "BX lr \n\t" : "=r" (result) );
- return(result);
-}
-
-/**
- * @brief Set the Main Stack Pointer
- *
- * @param uint32_t Main Stack Pointer
- * @return none
- *
- * Assign the value mainStackPointer to the MSP
- * (main stack pointer) Cortex processor register
- */
-void __set_MSP(uint32_t topOfMainStack) __attribute__( ( naked ) );
-void __set_MSP(uint32_t topOfMainStack)
-{
- __ASM volatile ("MSR msp, %0\n\t"
- "BX lr \n\t" : : "r" (topOfMainStack) );
-}
-
-/**
- * @brief Return the Base Priority value
- *
- * @param none
- * @return uint32_t BasePriority
- *
- * Return the content of the base priority register
- */
-uint32_t __get_BASEPRI(void)
-{
- uint32_t result=0;
-
- __ASM volatile ("MRS %0, basepri_max" : "=r" (result) );
- return(result);
-}
-
-/**
- * @brief Set the Base Priority value
- *
- * @param uint32_t BasePriority
- * @return none
- *
- * Set the base priority register
- */
-void __set_BASEPRI(uint32_t value)
-{
- __ASM volatile ("MSR basepri, %0" : : "r" (value) );
-}
-
-/**
- * @brief Return the Priority Mask value
- *
- * @param none
- * @return uint32_t PriMask
- *
- * Return the state of the priority mask bit from the priority mask
- * register
- */
-uint32_t __get_PRIMASK(void)
-{
- uint32_t result=0;
-
- __ASM volatile ("MRS %0, primask" : "=r" (result) );
- return(result);
-}
-
-/**
- * @brief Set the Priority Mask value
- *
- * @param uint32_t PriMask
- * @return none
- *
- * Set the priority mask bit in the priority mask register
- */
-void __set_PRIMASK(uint32_t priMask)
-{
- __ASM volatile ("MSR primask, %0" : : "r" (priMask) );
-}
-
-/**
- * @brief Return the Fault Mask value
- *
- * @param none
- * @return uint32_t FaultMask
- *
- * Return the content of the fault mask register
- */
-uint32_t __get_FAULTMASK(void)
-{
- uint32_t result=0;
-
- __ASM volatile ("MRS %0, faultmask" : "=r" (result) );
- return(result);
-}
-
-/**
- * @brief Set the Fault Mask value
- *
- * @param uint32_t faultMask value
- * @return none
- *
- * Set the fault mask register
- */
-void __set_FAULTMASK(uint32_t faultMask)
-{
- __ASM volatile ("MSR faultmask, %0" : : "r" (faultMask) );
-}
-
-/**
- * @brief Reverse byte order in integer value
- *
- * @param uint32_t value to reverse
- * @return uint32_t reversed value
- *
- * Reverse byte order in integer value
- */
-uint32_t __REV(uint32_t value)
-{
- uint32_t result=0;
-
- __ASM volatile ("rev %0, %1" : "=r" (result) : "r" (value) );
- return(result);
-}
-
-/**
- * @brief Reverse byte order in unsigned short value
- *
- * @param uint16_t value to reverse
- * @return uint32_t reversed value
- *
- * Reverse byte order in unsigned short value
- */
-uint32_t __REV16(uint16_t value)
-{
- uint32_t result=0;
-
- __ASM volatile ("rev16 %0, %1" : "=r" (result) : "r" (value) );
- return(result);
-}
-
-/**
- * @brief Reverse byte order in signed short value with sign extension to integer
- *
- * @param int32_t value to reverse
- * @return int32_t reversed value
- *
- * Reverse byte order in signed short value with sign extension to integer
- */
-int32_t __REVSH(int16_t value)
-{
- uint32_t result=0;
-
- __ASM volatile ("revsh %0, %1" : "=r" (result) : "r" (value) );
- return(result);
-}
-
-/**
- * @brief Reverse bit order of value
- *
- * @param uint32_t value to reverse
- * @return uint32_t reversed value
- *
- * Reverse bit order of value
- */
-uint32_t __RBIT(uint32_t value)
-{
- uint32_t result=0;
-
- __ASM volatile ("rbit %0, %1" : "=r" (result) : "r" (value) );
- return(result);
-}
-
-/**
- * @brief LDR Exclusive
- *
- * @param uint8_t* address
- * @return uint8_t value of (*address)
- *
- * Exclusive LDR command
- */
-uint8_t __LDREXB(uint8_t *addr)
-{
- uint8_t result=0;
-
- __ASM volatile ("ldrexb %0, [%1]" : "=r" (result) : "r" (addr) );
- return(result);
-}
-
-/**
- * @brief LDR Exclusive
- *
- * @param uint16_t* address
- * @return uint16_t value of (*address)
- *
- * Exclusive LDR command
- */
-uint16_t __LDREXH(uint16_t *addr)
-{
- uint16_t result=0;
-
- __ASM volatile ("ldrexh %0, [%1]" : "=r" (result) : "r" (addr) );
- return(result);
-}
-
-/**
- * @brief LDR Exclusive
- *
- * @param uint32_t* address
- * @return uint32_t value of (*address)
- *
- * Exclusive LDR command
- */
-uint32_t __LDREXW(uint32_t *addr)
-{
- uint32_t result=0;
-
- __ASM volatile ("ldrex %0, [%1]" : "=r" (result) : "r" (addr) );
- return(result);
-}
-
-/**
- * @brief STR Exclusive
- *
- * @param uint8_t *address
- * @param uint8_t value to store
- * @return uint32_t successful / failed
- *
- * Exclusive STR command
- */
-uint32_t __STREXB(uint8_t value, uint8_t *addr)
-{
- uint32_t result=0;
-
- __ASM volatile ("strexb %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
- return(result);
-}
-
-/**
- * @brief STR Exclusive
- *
- * @param uint16_t *address
- * @param uint16_t value to store
- * @return uint32_t successful / failed
- *
- * Exclusive STR command
- */
-uint32_t __STREXH(uint16_t value, uint16_t *addr)
-{
- uint32_t result=0;
-
- __ASM volatile ("strexh %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
- return(result);
-}
-
-/**
- * @brief STR Exclusive
- *
- * @param uint32_t *address
- * @param uint32_t value to store
- * @return uint32_t successful / failed
- *
- * Exclusive STR command
- */
-uint32_t __STREXW(uint32_t value, uint32_t *addr)
-{
- uint32_t result=0;
-
- __ASM volatile ("strex %0, %2, [%1]" : "=r" (result) : "r" (addr), "r" (value) );
- return(result);
-}
-
-/**
- * @brief Return the Control Register value
- *
- * @param none
- * @return uint32_t Control value
- *
- * Return the content of the control register
- */
-uint32_t __get_CONTROL(void)
-{
- uint32_t result=0;
-
- __ASM volatile ("MRS %0, control" : "=r" (result) );
- return(result);
-}
-
-/**
- * @brief Set the Control Register value
- *
- * @param uint32_t Control value
- * @return none
- *
- * Set the control register
- */
-void __set_CONTROL(uint32_t control)
-{
- __ASM volatile ("MSR control, %0" : : "r" (control) );
-}
-
-#elif (defined (__TASKING__)) /*------------------ TASKING Compiler ---------------------*/
-/* TASKING carm specific functions */
-
-/*
- * The CMSIS functions have been implemented as intrinsics in the compiler.
- * Please use "carm -?i" to get an up to date list of all instrinsics,
- * Including the CMSIS ones.
- */
-
-#endif
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