Dave Lu / Mbed 2 deprecated FYDP

Dependencies:   mbed

Fork of FYDP_Final2 by Dave Lu

mbed-rtos/rtx/rt_HAL_CM.h@11:425dff6a4af9, 2015-03-25 (annotated)

Committer:
tntmarket
Date:
Wed Mar 25 18:11:09 2015 +0000
Revision:
11:425dff6a4af9
Parent:
8:3d5a84b897be 
Working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
majik 0:21019d94ad33 1 /*----------------------------------------------------------------------------
majik 0:21019d94ad33 2 * RL-ARM - RTX
majik 0:21019d94ad33 3 *----------------------------------------------------------------------------
majik 0:21019d94ad33 4 * Name: RT_HAL_CM.H
majik 0:21019d94ad33 5 * Purpose: Hardware Abstraction Layer for Cortex-M definitions
majik 0:21019d94ad33 6 * Rev.: V4.60
majik 0:21019d94ad33 7 *----------------------------------------------------------------------------
majik 0:21019d94ad33 8 *
majik 0:21019d94ad33 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
majik 0:21019d94ad33 10 * All rights reserved.
majik 0:21019d94ad33 11 * Redistribution and use in source and binary forms, with or without
majik 0:21019d94ad33 12 * modification, are permitted provided that the following conditions are met:
majik 0:21019d94ad33 13 * - Redistributions of source code must retain the above copyright
majik 0:21019d94ad33 14 * notice, this list of conditions and the following disclaimer.
majik 0:21019d94ad33 15 * - Redistributions in binary form must reproduce the above copyright
majik 0:21019d94ad33 16 * notice, this list of conditions and the following disclaimer in the
majik 0:21019d94ad33 17 * documentation and/or other materials provided with the distribution.
majik 0:21019d94ad33 18 * - Neither the name of ARM nor the names of its contributors may be used
majik 0:21019d94ad33 19 * to endorse or promote products derived from this software without
majik 0:21019d94ad33 20 * specific prior written permission.
majik 0:21019d94ad33 21 *
majik 0:21019d94ad33 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
majik 0:21019d94ad33 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
majik 0:21019d94ad33 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
majik 0:21019d94ad33 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
majik 0:21019d94ad33 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
majik 0:21019d94ad33 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
majik 0:21019d94ad33 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
majik 0:21019d94ad33 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
majik 0:21019d94ad33 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
majik 0:21019d94ad33 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
majik 0:21019d94ad33 32 * POSSIBILITY OF SUCH DAMAGE.
majik 0:21019d94ad33 33 *---------------------------------------------------------------------------*/
majik 0:21019d94ad33 34
majik 0:21019d94ad33 35 /* Definitions */
majik 0:21019d94ad33 36 #define INITIAL_xPSR 0x01000000
majik 0:21019d94ad33 37 #define DEMCR_TRCENA 0x01000000
majik 0:21019d94ad33 38 #define ITM_ITMENA 0x00000001
majik 0:21019d94ad33 39 #define MAGIC_WORD 0xE25A2EA5
majik 0:21019d94ad33 40
majik 0:21019d94ad33 41 #if defined (__CC_ARM) /* ARM Compiler */
majik 0:21019d94ad33 42
majik 0:21019d94ad33 43 #if ((__TARGET_ARCH_7_M || __TARGET_ARCH_7E_M) && !NO_EXCLUSIVE_ACCESS)
majik 0:21019d94ad33 44 #define __USE_EXCLUSIVE_ACCESS
majik 0:21019d94ad33 45 #else
majik 0:21019d94ad33 46 #undef __USE_EXCLUSIVE_ACCESS
majik 0:21019d94ad33 47 #endif
majik 0:21019d94ad33 48
majik 0:21019d94ad33 49 #elif defined (__GNUC__) /* GNU Compiler */
majik 0:21019d94ad33 50
majik 0:21019d94ad33 51 #undef __USE_EXCLUSIVE_ACCESS
majik 0:21019d94ad33 52
majik 0:21019d94ad33 53 #if defined (__CORTEX_M0) || defined (__CORTEX_M0PLUS)
majik 0:21019d94ad33 54 #define __TARGET_ARCH_6S_M 1
majik 0:21019d94ad33 55 #else
majik 0:21019d94ad33 56 #define __TARGET_ARCH_6S_M 0
majik 0:21019d94ad33 57 #endif
majik 0:21019d94ad33 58
majik 0:21019d94ad33 59 #if defined (__VFP_FP__) && !defined(__SOFTFP__)
majik 0:21019d94ad33 60 #define __TARGET_FPU_VFP 1
majik 0:21019d94ad33 61 #else
majik 0:21019d94ad33 62 #define __TARGET_FPU_VFP 0
majik 0:21019d94ad33 63 #endif
majik 0:21019d94ad33 64
majik 0:21019d94ad33 65 #define __inline inline
majik 0:21019d94ad33 66 #define __weak __attribute__((weak))
majik 0:21019d94ad33 67
majik 0:21019d94ad33 68 #ifndef __CMSIS_GENERIC
majik 0:21019d94ad33 69
majik 0:21019d94ad33 70 __attribute__((always_inline)) static inline void __enable_irq(void)
majik 0:21019d94ad33 71 {
majik 0:21019d94ad33 72 __asm volatile ("cpsie i");
majik 0:21019d94ad33 73 }
majik 0:21019d94ad33 74
majik 0:21019d94ad33 75 __attribute__((always_inline)) static inline U32 __disable_irq(void)
majik 0:21019d94ad33 76 {
majik 0:21019d94ad33 77 U32 result;
majik 0:21019d94ad33 78
majik 0:21019d94ad33 79 __asm volatile ("mrs %0, primask" : "=r" (result));
majik 0:21019d94ad33 80 __asm volatile ("cpsid i");
majik 0:21019d94ad33 81 return(result & 1);
majik 0:21019d94ad33 82 }
majik 0:21019d94ad33 83
majik 0:21019d94ad33 84 #endif
majik 0:21019d94ad33 85
majik 0:21019d94ad33 86 __attribute__(( always_inline)) static inline U8 __clz(U32 value)
majik 0:21019d94ad33 87 {
majik 0:21019d94ad33 88 U8 result;
majik 0:21019d94ad33 89
majik 0:21019d94ad33 90 __asm volatile ("clz %0, %1" : "=r" (result) : "r" (value));
majik 0:21019d94ad33 91 return(result);
majik 0:21019d94ad33 92 }
majik 0:21019d94ad33 93
majik 0:21019d94ad33 94 #elif defined (__ICCARM__) /* IAR Compiler */
majik 0:21019d94ad33 95
majik 0:21019d94ad33 96 #undef __USE_EXCLUSIVE_ACCESS
majik 0:21019d94ad33 97
majik 0:21019d94ad33 98 #if (__CORE__ == __ARM6M__)
majik 0:21019d94ad33 99 #define __TARGET_ARCH_6S_M 1
majik 0:21019d94ad33 100 #else
majik 0:21019d94ad33 101 #define __TARGET_ARCH_6S_M 0
majik 0:21019d94ad33 102 #endif
majik 0:21019d94ad33 103
majik 0:21019d94ad33 104 #if defined __ARMVFP__
majik 0:21019d94ad33 105 #define __TARGET_FPU_VFP 1
majik 0:21019d94ad33 106 #else
majik 0:21019d94ad33 107 #define __TARGET_FPU_VFP 0
majik 0:21019d94ad33 108 #endif
majik 0:21019d94ad33 109
majik 0:21019d94ad33 110 #define __inline inline
majik 0:21019d94ad33 111
majik 0:21019d94ad33 112 #ifndef __CMSIS_GENERIC
majik 0:21019d94ad33 113
majik 0:21019d94ad33 114 static inline void __enable_irq(void)
majik 0:21019d94ad33 115 {
majik 0:21019d94ad33 116 __asm volatile ("cpsie i");
majik 0:21019d94ad33 117 }
majik 0:21019d94ad33 118
majik 0:21019d94ad33 119 static inline U32 __disable_irq(void)
majik 0:21019d94ad33 120 {
majik 0:21019d94ad33 121 U32 result;
majik 0:21019d94ad33 122
majik 0:21019d94ad33 123 __asm volatile ("mrs %0, primask" : "=r" (result));
majik 0:21019d94ad33 124 __asm volatile ("cpsid i");
majik 0:21019d94ad33 125 return(result & 1);
majik 0:21019d94ad33 126 }
majik 0:21019d94ad33 127
majik 0:21019d94ad33 128 #endif
majik 0:21019d94ad33 129
majik 0:21019d94ad33 130 static inline U8 __clz(U32 value)
majik 0:21019d94ad33 131 {
majik 0:21019d94ad33 132 U8 result;
majik 0:21019d94ad33 133
majik 0:21019d94ad33 134 __asm volatile ("clz %0, %1" : "=r" (result) : "r" (value));
majik 0:21019d94ad33 135 return(result);
majik 0:21019d94ad33 136 }
majik 0:21019d94ad33 137
majik 0:21019d94ad33 138 #endif
majik 0:21019d94ad33 139
majik 0:21019d94ad33 140 /* NVIC registers */
majik 0:21019d94ad33 141 #define NVIC_ST_CTRL (*((volatile U32 *)0xE000E010))
majik 0:21019d94ad33 142 #define NVIC_ST_RELOAD (*((volatile U32 *)0xE000E014))
majik 0:21019d94ad33 143 #define NVIC_ST_CURRENT (*((volatile U32 *)0xE000E018))
majik 0:21019d94ad33 144 #define NVIC_ISER ((volatile U32 *)0xE000E100)
majik 0:21019d94ad33 145 #define NVIC_ICER ((volatile U32 *)0xE000E180)
majik 0:21019d94ad33 146 #if (__TARGET_ARCH_6S_M)
majik 0:21019d94ad33 147 #define NVIC_IP ((volatile U32 *)0xE000E400)
majik 0:21019d94ad33 148 #else
majik 0:21019d94ad33 149 #define NVIC_IP ((volatile U8 *)0xE000E400)
majik 0:21019d94ad33 150 #endif
majik 0:21019d94ad33 151 #define NVIC_INT_CTRL (*((volatile U32 *)0xE000ED04))
majik 0:21019d94ad33 152 #define NVIC_AIR_CTRL (*((volatile U32 *)0xE000ED0C))
majik 0:21019d94ad33 153 #define NVIC_SYS_PRI2 (*((volatile U32 *)0xE000ED1C))
majik 0:21019d94ad33 154 #define NVIC_SYS_PRI3 (*((volatile U32 *)0xE000ED20))
majik 0:21019d94ad33 155
majik 0:21019d94ad33 156 #define OS_PEND_IRQ() NVIC_INT_CTRL = (1<<28)
majik 0:21019d94ad33 157 #define OS_PENDING ((NVIC_INT_CTRL >> 26) & (1<<2 | 1))
majik 0:21019d94ad33 158 #define OS_UNPEND(fl) NVIC_INT_CTRL = (*fl = OS_PENDING) << 25
majik 0:21019d94ad33 159 #define OS_PEND(fl,p) NVIC_INT_CTRL = (fl | p<<2) << 26
majik 0:21019d94ad33 160 #define OS_LOCK() NVIC_ST_CTRL = 0x0005
majik 0:21019d94ad33 161 #define OS_UNLOCK() NVIC_ST_CTRL = 0x0007
majik 0:21019d94ad33 162
majik 0:21019d94ad33 163 #define OS_X_PENDING ((NVIC_INT_CTRL >> 28) & 1)
majik 0:21019d94ad33 164 #define OS_X_UNPEND(fl) NVIC_INT_CTRL = (*fl = OS_X_PENDING) << 27
majik 0:21019d94ad33 165 #define OS_X_PEND(fl,p) NVIC_INT_CTRL = (fl | p) << 28
majik 0:21019d94ad33 166 #if (__TARGET_ARCH_6S_M)
majik 0:21019d94ad33 167 #define OS_X_INIT(n) NVIC_IP[n>>2] |= 0xFF << (8*(n & 0x03)); \
majik 0:21019d94ad33 168 NVIC_ISER[n>>5] = 1 << (n & 0x1F)
majik 0:21019d94ad33 169 #else
majik 0:21019d94ad33 170 #define OS_X_INIT(n) NVIC_IP[n] = 0xFF; \
majik 0:21019d94ad33 171 NVIC_ISER[n>>5] = 1 << (n & 0x1F)
majik 0:21019d94ad33 172 #endif
majik 0:21019d94ad33 173 #define OS_X_LOCK(n) NVIC_ICER[n>>5] = 1 << (n & 0x1F)
majik 0:21019d94ad33 174 #define OS_X_UNLOCK(n) NVIC_ISER[n>>5] = 1 << (n & 0x1F)
majik 0:21019d94ad33 175
majik 0:21019d94ad33 176 /* Core Debug registers */
majik 0:21019d94ad33 177 #define DEMCR (*((volatile U32 *)0xE000EDFC))
majik 0:21019d94ad33 178
majik 0:21019d94ad33 179 /* ITM registers */
majik 0:21019d94ad33 180 #define ITM_CONTROL (*((volatile U32 *)0xE0000E80))
majik 0:21019d94ad33 181 #define ITM_ENABLE (*((volatile U32 *)0xE0000E00))
majik 0:21019d94ad33 182 #define ITM_PORT30_U32 (*((volatile U32 *)0xE0000078))
majik 0:21019d94ad33 183 #define ITM_PORT31_U32 (*((volatile U32 *)0xE000007C))
majik 0:21019d94ad33 184 #define ITM_PORT31_U16 (*((volatile U16 *)0xE000007C))
majik 0:21019d94ad33 185 #define ITM_PORT31_U8 (*((volatile U8 *)0xE000007C))
majik 0:21019d94ad33 186
majik 0:21019d94ad33 187 /* Variables */
majik 0:21019d94ad33 188 extern BIT dbg_msg;
majik 0:21019d94ad33 189
majik 0:21019d94ad33 190 /* Functions */
majik 0:21019d94ad33 191 #ifdef __USE_EXCLUSIVE_ACCESS
majik 0:21019d94ad33 192 #define rt_inc(p) while(__strex((__ldrex(p)+1),p))
majik 0:21019d94ad33 193 #define rt_dec(p) while(__strex((__ldrex(p)-1),p))
majik 0:21019d94ad33 194 #else
majik 0:21019d94ad33 195 #define rt_inc(p) __disable_irq();(*p)++;__enable_irq();
majik 0:21019d94ad33 196 #define rt_dec(p) __disable_irq();(*p)--;__enable_irq();
majik 0:21019d94ad33 197 #endif
majik 0:21019d94ad33 198
majik 0:21019d94ad33 199 __inline static U32 rt_inc_qi (U32 size, U8 *count, U8 *first) {
majik 0:21019d94ad33 200 U32 cnt,c2;
majik 0:21019d94ad33 201 #ifdef __USE_EXCLUSIVE_ACCESS
majik 0:21019d94ad33 202 do {
majik 0:21019d94ad33 203 if ((cnt = __ldrex(count)) == size) {
majik 0:21019d94ad33 204 __clrex();
majik 0:21019d94ad33 205 return (cnt); }
majik 0:21019d94ad33 206 } while (__strex(cnt+1, count));
majik 0:21019d94ad33 207 do {
majik 0:21019d94ad33 208 c2 = (cnt = __ldrex(first)) + 1;
majik 0:21019d94ad33 209 if (c2 == size) c2 = 0;
majik 0:21019d94ad33 210 } while (__strex(c2, first));
majik 0:21019d94ad33 211 #else
majik 0:21019d94ad33 212 __disable_irq();
majik 0:21019d94ad33 213 if ((cnt = *count) < size) {
majik 0:21019d94ad33 214 *count = cnt+1;
majik 0:21019d94ad33 215 c2 = (cnt = *first) + 1;
majik 0:21019d94ad33 216 if (c2 == size) c2 = 0;
majik 0:21019d94ad33 217 *first = c2;
majik 0:21019d94ad33 218 }
majik 0:21019d94ad33 219 __enable_irq ();
majik 0:21019d94ad33 220 #endif
majik 0:21019d94ad33 221 return (cnt);
majik 0:21019d94ad33 222 }
majik 0:21019d94ad33 223
majik 0:21019d94ad33 224 __inline static void rt_systick_init (void) {
majik 0:21019d94ad33 225 NVIC_ST_RELOAD = os_trv;
majik 0:21019d94ad33 226 NVIC_ST_CURRENT = 0;
majik 0:21019d94ad33 227 NVIC_ST_CTRL = 0x0007;
majik 0:21019d94ad33 228 NVIC_SYS_PRI3 |= 0xFF000000;
majik 0:21019d94ad33 229 }
majik 0:21019d94ad33 230
majik 0:21019d94ad33 231 __inline static void rt_svc_init (void) {
majik 0:21019d94ad33 232 #if !(__TARGET_ARCH_6S_M)
majik 0:21019d94ad33 233 int sh,prigroup;
majik 0:21019d94ad33 234 #endif
majik 0:21019d94ad33 235 NVIC_SYS_PRI3 |= 0x00FF0000;
majik 0:21019d94ad33 236 #if (__TARGET_ARCH_6S_M)
majik 0:21019d94ad33 237 NVIC_SYS_PRI2 |= (NVIC_SYS_PRI3<<(8+1)) & 0xFC000000;
majik 0:21019d94ad33 238 #else
majik 0:21019d94ad33 239 sh = 8 - __clz (~((NVIC_SYS_PRI3 << 8) & 0xFF000000));
majik 0:21019d94ad33 240 prigroup = ((NVIC_AIR_CTRL >> 8) & 0x07);
majik 0:21019d94ad33 241 if (prigroup >= sh) {
majik 0:21019d94ad33 242 sh = prigroup + 1;
majik 0:21019d94ad33 243 }
majik 0:21019d94ad33 244 NVIC_SYS_PRI2 = ((0xFEFFFFFF << sh) & 0xFF000000) | (NVIC_SYS_PRI2 & 0x00FFFFFF);
majik 0:21019d94ad33 245 #endif
majik 0:21019d94ad33 246 }
majik 0:21019d94ad33 247
majik 0:21019d94ad33 248 extern void rt_set_PSP (U32 stack);
majik 0:21019d94ad33 249 extern U32 rt_get_PSP (void);
majik 0:21019d94ad33 250 extern void os_set_env (void);
majik 0:21019d94ad33 251 extern void *_alloc_box (void *box_mem);
majik 0:21019d94ad33 252 extern int _free_box (void *box_mem, void *box);
majik 0:21019d94ad33 253
majik 0:21019d94ad33 254 extern void rt_init_stack (P_TCB p_TCB, FUNCP task_body);
majik 0:21019d94ad33 255 extern void rt_ret_val (P_TCB p_TCB, U32 v0);
majik 0:21019d94ad33 256 extern void rt_ret_val2 (P_TCB p_TCB, U32 v0, U32 v1);
majik 0:21019d94ad33 257
majik 0:21019d94ad33 258 extern void dbg_init (void);
majik 0:21019d94ad33 259 extern void dbg_task_notify (P_TCB p_tcb, BOOL create);
majik 0:21019d94ad33 260 extern void dbg_task_switch (U32 task_id);
majik 0:21019d94ad33 261
majik 0:21019d94ad33 262 #ifdef DBG_MSG
majik 0:21019d94ad33 263 #define DBG_INIT() dbg_init()
majik 0:21019d94ad33 264 #define DBG_TASK_NOTIFY(p_tcb,create) if (dbg_msg) dbg_task_notify(p_tcb,create)
majik 0:21019d94ad33 265 #define DBG_TASK_SWITCH(task_id) if (dbg_msg && (os_tsk.new_tsk != os_tsk.run)) \
majik 0:21019d94ad33 266 dbg_task_switch(task_id)
majik 0:21019d94ad33 267 #else
majik 0:21019d94ad33 268 #define DBG_INIT()
majik 0:21019d94ad33 269 #define DBG_TASK_NOTIFY(p_tcb,create)
majik 0:21019d94ad33 270 #define DBG_TASK_SWITCH(task_id)
majik 0:21019d94ad33 271 #endif
majik 0:21019d94ad33 272
majik 0:21019d94ad33 273 /*----------------------------------------------------------------------------
majik 0:21019d94ad33 274 * end of file
majik 0:21019d94ad33 275 *---------------------------------------------------------------------------*/
majik 0:21019d94ad33 276