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Diff: rtx/TARGET_CORTEX_A/rt_HAL_CM.h
- Revision:
- 49:77c8e4604045
- Parent:
- 48:e9a2c7cb57a4
- Child:
- 68:d3d0e710b443
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/rtx/TARGET_CORTEX_A/rt_HAL_CM.h Thu Nov 06 13:00:11 2014 +0000 @@ -0,0 +1,276 @@ +/*---------------------------------------------------------------------------- + * 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 + *---------------------------------------------------------------------------*/ +