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RTX_CM_lib.h
00001 /*---------------------------------------------------------------------------- 00002 * RL-ARM - RTX 00003 *---------------------------------------------------------------------------- 00004 * Name: RTX_CM_LIB.H 00005 * Purpose: RTX Kernel System Configuration 00006 * Rev.: V4.60 00007 *---------------------------------------------------------------------------- 00008 * 00009 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH 00010 * All rights reserved. 00011 * Redistribution and use in source and binary forms, with or without 00012 * modification, are permitted provided that the following conditions are met: 00013 * - Redistributions of source code must retain the above copyright 00014 * notice, this list of conditions and the following disclaimer. 00015 * - Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in the 00017 * documentation and/or other materials provided with the distribution. 00018 * - Neither the name of ARM nor the names of its contributors may be used 00019 * to endorse or promote products derived from this software without 00020 * specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00023 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE 00026 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00027 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00028 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00029 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00030 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00031 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 *---------------------------------------------------------------------------*/ 00034 #include "capi/error.h" 00035 00036 #if defined (__CC_ARM) 00037 #pragma O3 00038 #define __USED __attribute__((used)) 00039 #elif defined (__GNUC__) 00040 #pragma GCC optimize ("O3") 00041 #define __USED __attribute__((used)) 00042 #elif defined (__ICCARM__) 00043 #define __USED __root 00044 #endif 00045 00046 00047 /*---------------------------------------------------------------------------- 00048 * Definitions 00049 *---------------------------------------------------------------------------*/ 00050 00051 #define _declare_box(pool,size,cnt) uint32_t pool[(((size)+3)/4)*(cnt) + 3] 00052 #define _declare_box8(pool,size,cnt) uint64_t pool[(((size)+7)/8)*(cnt) + 2] 00053 00054 #define OS_TCB_SIZE 48 00055 #define OS_TMR_SIZE 8 00056 00057 #if defined (__CC_ARM) && !defined (__MICROLIB) 00058 00059 typedef void *OS_ID; 00060 typedef uint32_t OS_TID; 00061 typedef uint32_t OS_MUT[3]; 00062 typedef uint32_t OS_RESULT; 00063 00064 #define runtask_id() rt_tsk_self() 00065 #define mutex_init(m) rt_mut_init(m) 00066 #define mutex_wait(m) os_mut_wait(m,0xFFFF) 00067 #define mutex_rel(m) os_mut_release(m) 00068 00069 extern OS_TID rt_tsk_self (void); 00070 extern void rt_mut_init (OS_ID mutex); 00071 extern OS_RESULT rt_mut_release (OS_ID mutex); 00072 extern OS_RESULT rt_mut_wait (OS_ID mutex, uint16_t timeout); 00073 00074 #define os_mut_wait(mutex,timeout) _os_mut_wait((uint32_t)rt_mut_wait,mutex,timeout) 00075 #define os_mut_release(mutex) _os_mut_release((uint32_t)rt_mut_release,mutex) 00076 00077 OS_RESULT _os_mut_release (uint32_t p, OS_ID mutex) __svc_indirect(0); 00078 OS_RESULT _os_mut_wait (uint32_t p, OS_ID mutex, uint16_t timeout) __svc_indirect(0); 00079 00080 #endif 00081 00082 00083 /*---------------------------------------------------------------------------- 00084 * Global Variables 00085 *---------------------------------------------------------------------------*/ 00086 00087 #if (OS_TIMERS != 0) 00088 #define OS_TASK_CNT (OS_TASKCNT + 1) 00089 #else 00090 #define OS_TASK_CNT OS_TASKCNT 00091 #endif 00092 00093 uint16_t const os_maxtaskrun = OS_TASK_CNT; 00094 uint32_t const os_rrobin = (OS_ROBIN << 16) | OS_ROBINTOUT; 00095 uint32_t const os_trv = OS_TRV; 00096 uint8_t const os_flags = OS_RUNPRIV; 00097 00098 /* Export following defines to uVision debugger. */ 00099 __USED uint32_t const os_clockrate = OS_TICK; 00100 __USED uint32_t const os_timernum = 0; 00101 00102 /* Stack for the os_idle_demon */ 00103 unsigned int idle_task_stack[OS_IDLESTKSIZE]; 00104 unsigned short const idle_task_stack_size = OS_IDLESTKSIZE; 00105 00106 #ifndef OS_FIFOSZ 00107 #define OS_FIFOSZ 16 00108 #endif 00109 00110 /* Fifo Queue buffer for ISR requests.*/ 00111 uint32_t os_fifo[OS_FIFOSZ*2+1]; 00112 uint8_t const os_fifo_size = OS_FIFOSZ; 00113 00114 /* An array of Active task pointers. */ 00115 void *os_active_TCB[OS_TASK_CNT]; 00116 00117 /* User Timers Resources */ 00118 #if (OS_TIMERS != 0) 00119 extern void osTimerThread (void const *argument); 00120 osThreadDef(osTimerThread, (osPriority)(OS_TIMERPRIO-3), 4*OS_TIMERSTKSZ); 00121 osThreadId osThreadId_osTimerThread; 00122 osMessageQDef(osTimerMessageQ, OS_TIMERCBQS, void *); 00123 osMessageQId osMessageQId_osTimerMessageQ; 00124 #else 00125 osThreadDef_t os_thread_def_osTimerThread = { NULL }; 00126 osThreadId osThreadId_osTimerThread; 00127 osMessageQDef(osTimerMessageQ, 0, void *); 00128 osMessageQId osMessageQId_osTimerMessageQ; 00129 #endif 00130 00131 00132 /*---------------------------------------------------------------------------- 00133 * RTX Optimizations (empty functions) 00134 *---------------------------------------------------------------------------*/ 00135 00136 #if OS_ROBIN == 0 00137 void rt_init_robin (void) {;} 00138 void rt_chk_robin (void) {;} 00139 #endif 00140 00141 #if OS_STKCHECK == 0 00142 void rt_stk_check (void) {;} 00143 #endif 00144 00145 00146 /*---------------------------------------------------------------------------- 00147 * Standard Library multithreading interface 00148 *---------------------------------------------------------------------------*/ 00149 00150 #if defined (__CC_ARM) && !defined (__MICROLIB) 00151 static OS_MUT std_libmutex[OS_MUTEXCNT]; 00152 static uint32_t nr_mutex; 00153 00154 /*--------------------------- _mutex_initialize -----------------------------*/ 00155 00156 int _mutex_initialize (OS_ID *mutex) { 00157 /* Allocate and initialize a system mutex. */ 00158 00159 if (nr_mutex >= OS_MUTEXCNT) { 00160 /* If you are here, you need to increase the number OS_MUTEXCNT. */ 00161 error("Not enough stdlib mutexes\n"); 00162 } 00163 *mutex = &std_libmutex[nr_mutex++]; 00164 mutex_init (*mutex); 00165 return (1); 00166 } 00167 00168 00169 /*--------------------------- _mutex_acquire --------------------------------*/ 00170 00171 __attribute__((used)) void _mutex_acquire (OS_ID *mutex) { 00172 /* Acquire a system mutex, lock stdlib resources. */ 00173 if (runtask_id ()) { 00174 /* RTX running, acquire a mutex. */ 00175 mutex_wait (*mutex); 00176 } 00177 } 00178 00179 00180 /*--------------------------- _mutex_release --------------------------------*/ 00181 00182 __attribute__((used)) void _mutex_release (OS_ID *mutex) { 00183 /* Release a system mutex, unlock stdlib resources. */ 00184 if (runtask_id ()) { 00185 /* RTX running, release a mutex. */ 00186 mutex_rel (*mutex); 00187 } 00188 } 00189 00190 #endif 00191 00192 00193 /*---------------------------------------------------------------------------- 00194 * RTX Startup 00195 *---------------------------------------------------------------------------*/ 00196 00197 /* Main Thread definition */ 00198 extern int main (void); 00199 osThreadDef_t os_thread_def_main = {(os_pthread)main, osPriorityNormal, 0, NULL}; 00200 00201 #if defined (__CC_ARM) 00202 00203 // This define should be probably moved to the CMSIS layer 00204 #ifdef TARGET_LPC1768 00205 #define INITIAL_SP (0x10008000UL) 00206 00207 #elif TARGET_LPC11U24 00208 #define INITIAL_SP (0x10001000UL) 00209 00210 #elif TARGET_KL25Z 00211 #define INITIAL_SP (0x20003000UL) 00212 00213 #endif 00214 00215 extern unsigned char Image$$RW_IRAM1$$ZI$$Limit[]; 00216 00217 void set_main_stack(void) { 00218 // Leave OS_SCHEDULERSTKSIZE words for the scheduler and interrupts 00219 os_thread_def_main.stack_pointer = Image$$RW_IRAM1$$ZI$$Limit; 00220 os_thread_def_main.stacksize = (INITIAL_SP - (unsigned int)Image$$RW_IRAM1$$ZI$$Limit) - (OS_SCHEDULERSTKSIZE * 4); 00221 } 00222 00223 #ifdef __MICROLIB 00224 void _main_init (void) __attribute__((section(".ARM.Collect$$$$000000FF"))); 00225 void _main_init (void) { 00226 osKernelInitialize(); 00227 set_main_stack(); 00228 osThreadCreate(&os_thread_def_main, NULL); 00229 osKernelStart(); 00230 for (;;); 00231 } 00232 #else 00233 00234 /* The single memory model is checking for stack collision at run time, verifing 00235 that the heap pointer is underneath the stack pointer. 00236 00237 With the RTOS there is not only one stack above the heap, there are multiple 00238 stacks and some of them are underneath the heap pointer. 00239 */ 00240 #pragma import(__use_two_region_memory) 00241 00242 __asm void __rt_entry (void) { 00243 00244 IMPORT __user_setup_stackheap 00245 IMPORT __rt_lib_init 00246 IMPORT os_thread_def_main 00247 IMPORT osKernelInitialize 00248 IMPORT set_main_stack 00249 IMPORT osKernelStart 00250 IMPORT osThreadCreate 00251 IMPORT exit 00252 00253 BL __user_setup_stackheap 00254 MOV R1,R2 00255 BL __rt_lib_init 00256 BL osKernelInitialize 00257 BL set_main_stack 00258 LDR R0,=os_thread_def_main 00259 MOVS R1,#0 00260 BL osThreadCreate 00261 BL osKernelStart 00262 BL exit 00263 00264 ALIGN 00265 } 00266 #endif 00267 00268 #elif defined (__GNUC__) 00269 00270 #ifdef __CS3__ 00271 00272 /* CS3 start_c routine. 00273 * 00274 * Copyright (c) 2006, 2007 CodeSourcery Inc 00275 * 00276 * The authors hereby grant permission to use, copy, modify, distribute, 00277 * and license this software and its documentation for any purpose, provided 00278 * that existing copyright notices are retained in all copies and that this 00279 * notice is included verbatim in any distributions. No written agreement, 00280 * license, or royalty fee is required for any of the authorized uses. 00281 * Modifications to this software may be copyrighted by their authors 00282 * and need not follow the licensing terms described here, provided that 00283 * the new terms are clearly indicated on the first page of each file where 00284 * they apply. 00285 */ 00286 00287 #include "cs3.h" 00288 00289 extern void __libc_init_array (void); 00290 00291 __attribute ((noreturn)) void __cs3_start_c (void){ 00292 unsigned regions = __cs3_region_num; 00293 const struct __cs3_region *rptr = __cs3_regions; 00294 00295 /* Initialize memory */ 00296 for (regions = __cs3_region_num, rptr = __cs3_regions; regions--; rptr++) { 00297 long long *src = (long long *)rptr->init; 00298 long long *dst = (long long *)rptr->data; 00299 unsigned limit = rptr->init_size; 00300 unsigned count; 00301 00302 if (src != dst) 00303 for (count = 0; count != limit; count += sizeof (long long)) 00304 *dst++ = *src++; 00305 else 00306 dst = (long long *)((char *)dst + limit); 00307 limit = rptr->zero_size; 00308 for (count = 0; count != limit; count += sizeof (long long)) 00309 *dst++ = 0; 00310 } 00311 00312 /* Run initializers. */ 00313 __libc_init_array (); 00314 00315 osKernelInitialize(); 00316 osThreadCreate(&os_thread_def_main, NULL); 00317 osKernelStart(); 00318 for (;;); 00319 } 00320 00321 #else 00322 00323 __attribute__((naked)) void software_init_hook (void) { 00324 __asm ( 00325 ".syntax unified\n" 00326 ".thumb\n" 00327 "movs r0,#0\n" 00328 "movs r1,#0\n" 00329 "mov r4,r0\n" 00330 "mov r5,r1\n" 00331 "ldr r0,= __libc_fini_array\n" 00332 "bl atexit\n" 00333 "bl __libc_init_array\n" 00334 "mov r0,r4\n" 00335 "mov r1,r5\n" 00336 "bl osKernelInitialize\n" 00337 "ldr r0,=os_thread_def_main\n" 00338 "movs r1,#0\n" 00339 "bl osThreadCreate\n" 00340 "bl osKernelStart\n" 00341 "bl exit\n" 00342 ); 00343 } 00344 00345 #endif 00346 00347 #elif defined (__ICCARM__) 00348 00349 extern int __low_level_init(void); 00350 extern void __iar_data_init3(void); 00351 extern void exit(int arg); 00352 00353 __noreturn __stackless void __cmain(void) { 00354 int a; 00355 00356 if (__low_level_init() != 0) { 00357 __iar_data_init3(); 00358 } 00359 osKernelInitialize(); 00360 osThreadCreate(&os_thread_def_main, NULL); 00361 a = osKernelStart(); 00362 exit(a); 00363 } 00364 00365 #endif 00366 00367 00368 /*---------------------------------------------------------------------------- 00369 * end of file 00370 *---------------------------------------------------------------------------*/ 00371
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