Rtos code cntains bug possible incompatability with I2C
Fork of mbed-rtos by
rtx/TARGET_CORTEX_A/rt_HAL_CM.h
- Committer:
- mbed_official
- Date:
- 2015-03-12
- Revision:
- 68:d3d0e710b443
- Parent:
- 49:77c8e4604045
- Child:
- 92:bc9729798a19
File content as of revision 68:d3d0e710b443:
/*---------------------------------------------------------------------------- * RL-ARM - RTX *---------------------------------------------------------------------------- * Name: RT_HAL_CM.H * Purpose: Hardware Abstraction Layer for Cortex-M definitions * Rev.: V4.60 *---------------------------------------------------------------------------- * * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH * All rights reserved. * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - 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. * - Neither the name of ARM 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 COPYRIGHT HOLDERS AND 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. *---------------------------------------------------------------------------*/ /* Definitions */ #define INITIAL_xPSR 0x01000000 #define DEMCR_TRCENA 0x01000000 #define ITM_ITMENA 0x00000001 #define MAGIC_WORD 0xE25A2EA5 #if defined (__CC_ARM) /* ARM Compiler */ #if ((__TARGET_ARCH_7_M || __TARGET_ARCH_7E_M) && !NO_EXCLUSIVE_ACCESS) #define __USE_EXCLUSIVE_ACCESS #else #undef __USE_EXCLUSIVE_ACCESS #endif #elif defined (__GNUC__) /* GNU Compiler */ #undef __USE_EXCLUSIVE_ACCESS #if defined (__CORTEX_M0) #define __TARGET_ARCH_6S_M 1 #else #define __TARGET_ARCH_6S_M 0 #endif #if defined (__VFP_FP__) && !defined(__SOFTFP__) #define __TARGET_FPU_VFP 1 #else #define __TARGET_FPU_VFP 0 #endif #define __inline inline #define __weak __attribute__((weak)) #ifndef __CMSIS_GENERIC __attribute__((always_inline)) static inline void __enable_irq(void) { __asm volatile ("cpsie i"); } __attribute__((always_inline)) static inline U32 __disable_irq(void) { U32 result; __asm volatile ("mrs %0, primask" : "=r" (result)); __asm volatile ("cpsid i"); return(result & 1); } #endif __attribute__(( always_inline)) static inline U8 __clz(U32 value) { U8 result; __asm volatile ("clz %0, %1" : "=r" (result) : "r" (value)); return(result); } #elif defined (__ICCARM__) /* IAR Compiler */ #undef __USE_EXCLUSIVE_ACCESS #if (__CORE__ == __ARM6M__) #define __TARGET_ARCH_6S_M 1 #else #define __TARGET_ARCH_6S_M 0 #endif #if defined __ARMVFP__ #define __TARGET_FPU_VFP 1 #else #define __TARGET_FPU_VFP 0 #endif #define __inline inline #ifndef __CMSIS_GENERIC static inline void __enable_irq(void) { __asm volatile ("cpsie i"); } static inline U32 __disable_irq(void) { U32 result; __asm volatile ("mrs %0, primask" : "=r" (result)); __asm volatile ("cpsid i"); return(result & 1); } #endif static inline U8 __clz(U32 value) { U8 result; __asm volatile ("clz %0, %1" : "=r" (result) : "r" (value)); return(result); } #endif /* NVIC registers */ #define NVIC_ST_CTRL (*((volatile U32 *)0xE000E010)) #define NVIC_ST_RELOAD (*((volatile U32 *)0xE000E014)) #define NVIC_ST_CURRENT (*((volatile U32 *)0xE000E018)) #define NVIC_ISER ((volatile U32 *)0xE000E100) #define NVIC_ICER ((volatile U32 *)0xE000E180) #if (__TARGET_ARCH_6S_M) #define NVIC_IP ((volatile U32 *)0xE000E400) #else #define NVIC_IP ((volatile U8 *)0xE000E400) #endif #define NVIC_INT_CTRL (*((volatile U32 *)0xE000ED04)) #define NVIC_AIR_CTRL (*((volatile U32 *)0xE000ED0C)) #define NVIC_SYS_PRI2 (*((volatile U32 *)0xE000ED1C)) #define NVIC_SYS_PRI3 (*((volatile U32 *)0xE000ED20)) #define OS_PEND_IRQ() NVIC_INT_CTRL = (1<<28) #define OS_PENDING ((NVIC_INT_CTRL >> 26) & (1<<2 | 1)) #define OS_UNPEND(fl) NVIC_INT_CTRL = (*fl = OS_PENDING) << 25 #define OS_PEND(fl,p) NVIC_INT_CTRL = (fl | p<<2) << 26 #define OS_LOCK() NVIC_ST_CTRL = 0x0005 #define OS_UNLOCK() NVIC_ST_CTRL = 0x0007 #define OS_X_PENDING ((NVIC_INT_CTRL >> 28) & 1) #define OS_X_UNPEND(fl) NVIC_INT_CTRL = (*fl = OS_X_PENDING) << 27 #define OS_X_PEND(fl,p) NVIC_INT_CTRL = (fl | p) << 28 #if (__TARGET_ARCH_6S_M) #define OS_X_INIT(n) NVIC_IP[n>>2] |= 0xFF << (8*(n & 0x03)); \ NVIC_ISER[n>>5] = 1 << (n & 0x1F) #else #define OS_X_INIT(n) NVIC_IP[n] = 0xFF; \ NVIC_ISER[n>>5] = 1 << (n & 0x1F) #endif #define OS_X_LOCK(n) NVIC_ICER[n>>5] = 1 << (n & 0x1F) #define OS_X_UNLOCK(n) NVIC_ISER[n>>5] = 1 << (n & 0x1F) /* Core Debug registers */ #define DEMCR (*((volatile U32 *)0xE000EDFC)) /* ITM registers */ #define ITM_CONTROL (*((volatile U32 *)0xE0000E80)) #define ITM_ENABLE (*((volatile U32 *)0xE0000E00)) #define ITM_PORT30_U32 (*((volatile U32 *)0xE0000078)) #define ITM_PORT31_U32 (*((volatile U32 *)0xE000007C)) #define ITM_PORT31_U16 (*((volatile U16 *)0xE000007C)) #define ITM_PORT31_U8 (*((volatile U8 *)0xE000007C)) /* Variables */ extern BIT dbg_msg; /* Functions */ #ifdef __USE_EXCLUSIVE_ACCESS #define rt_inc(p) while(__strex((__ldrex(p)+1),p)) #define rt_dec(p) while(__strex((__ldrex(p)-1),p)) #else #define rt_inc(p) __disable_irq();(*p)++;__enable_irq(); #define rt_dec(p) __disable_irq();(*p)--;__enable_irq(); #endif __inline static U32 rt_inc_qi (U32 size, U8 *count, U8 *first) { U32 cnt,c2; #ifdef __USE_EXCLUSIVE_ACCESS do { if ((cnt = __ldrex(count)) == size) { __clrex(); return (cnt); } } while (__strex(cnt+1, count)); do { c2 = (cnt = __ldrex(first)) + 1; if (c2 == size) c2 = 0; } while (__strex(c2, first)); #else __disable_irq(); if ((cnt = *count) < size) { *count = cnt+1; c2 = (cnt = *first) + 1; if (c2 == size) c2 = 0; *first = c2; } __enable_irq (); #endif return (cnt); } __inline static void rt_systick_init (void) { NVIC_ST_RELOAD = os_trv; NVIC_ST_CURRENT = 0; NVIC_ST_CTRL = 0x0007; NVIC_SYS_PRI3 |= 0xFF000000; } __inline static void rt_svc_init (void) { #if !(__TARGET_ARCH_6S_M) int sh,prigroup; #endif NVIC_SYS_PRI3 |= 0x00FF0000; #if (__TARGET_ARCH_6S_M) NVIC_SYS_PRI2 |= (NVIC_SYS_PRI3<<(8+1)) & 0xFC000000; #else sh = 8 - __clz (~((NVIC_SYS_PRI3 << 8) & 0xFF000000)); prigroup = ((NVIC_AIR_CTRL >> 8) & 0x07); if (prigroup >= sh) { sh = prigroup + 1; } NVIC_SYS_PRI2 = ((0xFEFFFFFF << sh) & 0xFF000000) | (NVIC_SYS_PRI2 & 0x00FFFFFF); #endif } extern void rt_set_PSP (U32 stack); extern U32 rt_get_PSP (void); extern void os_set_env (void); extern void *_alloc_box (void *box_mem); extern int _free_box (void *box_mem, void *box); extern void rt_init_stack (P_TCB p_TCB, FUNCP task_body); extern void rt_ret_val (P_TCB p_TCB, U32 v0); extern void rt_ret_val2 (P_TCB p_TCB, U32 v0, U32 v1); extern void dbg_init (void); extern void dbg_task_notify (P_TCB p_tcb, BOOL create); extern void dbg_task_switch (U32 task_id); #ifdef DBG_MSG #define DBG_INIT() dbg_init() #define DBG_TASK_NOTIFY(p_tcb,create) if (dbg_msg) dbg_task_notify(p_tcb,create) #define DBG_TASK_SWITCH(task_id) if (dbg_msg && (os_tsk.new!=os_tsk.run)) \ dbg_task_switch(task_id) #else #define DBG_INIT() #define DBG_TASK_NOTIFY(p_tcb,create) #define DBG_TASK_SWITCH(task_id) #endif /*---------------------------------------------------------------------------- * end of file *---------------------------------------------------------------------------*/