Kev Mann / mbed-dev-OS5_10_4

RTC auf true

rtos/TARGET_CORTEX/TOOLCHAIN_IAR/mbed_boot_iar.c@0:38ceb79fef03, 2018-11-28 (annotated)

Committer:
kevman
Date:
Wed Nov 28 15:10:15 2018 +0000
Revision:
0:38ceb79fef03
RTC modified

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kevman 0:38ceb79fef03 1 /* mbed Microcontroller Library
kevman 0:38ceb79fef03 2 * Copyright (c) 2018-2018 ARM Limited
kevman 0:38ceb79fef03 3 *
kevman 0:38ceb79fef03 4 * Licensed under the Apache License, Version 2.0 (the "License");
kevman 0:38ceb79fef03 5 * you may not use this file except in compliance with the License.
kevman 0:38ceb79fef03 6 * You may obtain a copy of the License at
kevman 0:38ceb79fef03 7 *
kevman 0:38ceb79fef03 8 * http://www.apache.org/licenses/LICENSE-2.0
kevman 0:38ceb79fef03 9 *
kevman 0:38ceb79fef03 10 * Unless required by applicable law or agreed to in writing, software
kevman 0:38ceb79fef03 11 * distributed under the License is distributed on an "AS IS" BASIS,
kevman 0:38ceb79fef03 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kevman 0:38ceb79fef03 13 * See the License for the specific language governing permissions and
kevman 0:38ceb79fef03 14 * limitations under the License.
kevman 0:38ceb79fef03 15 */
kevman 0:38ceb79fef03 16
kevman 0:38ceb79fef03 17 #include "cmsis.h"
kevman 0:38ceb79fef03 18 #include "mbed_error.h"
kevman 0:38ceb79fef03 19 #include "mbed_boot.h"
kevman 0:38ceb79fef03 20 #if defined(__IAR_SYSTEMS_ICC__ ) && (__VER__ >= 8000000)
kevman 0:38ceb79fef03 21 #include <DLib_Threads.h>
kevman 0:38ceb79fef03 22 #endif
kevman 0:38ceb79fef03 23 #include "mbed_rtos_storage.h"
kevman 0:38ceb79fef03 24 #include "cmsis_os2.h"
kevman 0:38ceb79fef03 25
kevman 0:38ceb79fef03 26 /* Defined by linker script */
kevman 0:38ceb79fef03 27 #pragma section="CSTACK"
kevman 0:38ceb79fef03 28 #pragma section="HEAP"
kevman 0:38ceb79fef03 29
kevman 0:38ceb79fef03 30 extern void* __vector_table;
kevman 0:38ceb79fef03 31 extern int __low_level_init(void);
kevman 0:38ceb79fef03 32 extern void __iar_data_init3(void);
kevman 0:38ceb79fef03 33 extern __weak void __iar_init_core(void);
kevman 0:38ceb79fef03 34 extern __weak void __iar_init_vfp(void);
kevman 0:38ceb79fef03 35 extern void __iar_dynamic_initialization(void);
kevman 0:38ceb79fef03 36
kevman 0:38ceb79fef03 37 /*
kevman 0:38ceb79fef03 38 * mbed entry point for the IAR toolchain
kevman 0:38ceb79fef03 39 *
kevman 0:38ceb79fef03 40 * Override __iar_program_start to run code before main.
kevman 0:38ceb79fef03 41 * This is the first function called after the low level
kevman 0:38ceb79fef03 42 * target initialization, so RAM has not been setup yet.
kevman 0:38ceb79fef03 43 *
kevman 0:38ceb79fef03 44 * Details on what this function are supposed to do can
kevman 0:38ceb79fef03 45 * be found by looking at the IAR source for this file.
kevman 0:38ceb79fef03 46 *
kevman 0:38ceb79fef03 47 * IAR source files for ARM instruction set:
kevman 0:38ceb79fef03 48 * <IAR>\arm\src\lib\arm\cstartup.s
kevman 0:38ceb79fef03 49 * <IAR>\arm\src\lib\arm\cmain.s
kevman 0:38ceb79fef03 50 *
kevman 0:38ceb79fef03 51 * IAR source files for THUMB instruction set:
kevman 0:38ceb79fef03 52 * <IAR>\arm\src\lib\thumb\cmain.s
kevman 0:38ceb79fef03 53 * <IAR>\arm\src\lib\thumb\cstartup_M.s
kevman 0:38ceb79fef03 54 */
kevman 0:38ceb79fef03 55 #pragma required=__vector_table
kevman 0:38ceb79fef03 56 void __iar_program_start( void )
kevman 0:38ceb79fef03 57 {
kevman 0:38ceb79fef03 58 /* the calls below are normally made in IAR cstartup */
kevman 0:38ceb79fef03 59 __iar_init_core();
kevman 0:38ceb79fef03 60 __iar_init_vfp();
kevman 0:38ceb79fef03 61
kevman 0:38ceb79fef03 62 /* the calls below are normally made in IAR cmain
kevman 0:38ceb79fef03 63 *
kevman 0:38ceb79fef03 64 * The function "__low_level_init" is a user overrideable hook
kevman 0:38ceb79fef03 65 * that does nothing by default. Returning zero means that
kevman 0:38ceb79fef03 66 * ram initialization should be skipped. Skipping ram initialization
kevman 0:38ceb79fef03 67 * is not allowed by mbed.
kevman 0:38ceb79fef03 68 *
kevman 0:38ceb79fef03 69 * The function "__iar_data_init3" is an IAR function which
kevman 0:38ceb79fef03 70 * initializes ram.
kevman 0:38ceb79fef03 71 *
kevman 0:38ceb79fef03 72 */
kevman 0:38ceb79fef03 73 __low_level_init();
kevman 0:38ceb79fef03 74 __iar_data_init3();
kevman 0:38ceb79fef03 75
kevman 0:38ceb79fef03 76 /* mbed specific code */
kevman 0:38ceb79fef03 77 mbed_heap_start = (unsigned char*)__section_begin("HEAP");
kevman 0:38ceb79fef03 78 mbed_heap_size = (uint32_t)__section_size("HEAP");
kevman 0:38ceb79fef03 79
kevman 0:38ceb79fef03 80 mbed_stack_isr_start = (unsigned char*)__section_begin("CSTACK");
kevman 0:38ceb79fef03 81 mbed_stack_isr_size = (uint32_t)__section_size("CSTACK");
kevman 0:38ceb79fef03 82
kevman 0:38ceb79fef03 83 mbed_init();
kevman 0:38ceb79fef03 84 mbed_rtos_start();
kevman 0:38ceb79fef03 85 }
kevman 0:38ceb79fef03 86
kevman 0:38ceb79fef03 87 void mbed_toolchain_init(void)
kevman 0:38ceb79fef03 88 {
kevman 0:38ceb79fef03 89 #if defined(__IAR_SYSTEMS_ICC__ ) && (__VER__ >= 8000000)
kevman 0:38ceb79fef03 90 __iar_Initlocks();
kevman 0:38ceb79fef03 91 #endif
kevman 0:38ceb79fef03 92
kevman 0:38ceb79fef03 93 /* Run the C++ global object constructors */
kevman 0:38ceb79fef03 94 __iar_dynamic_initialization();
kevman 0:38ceb79fef03 95 }
kevman 0:38ceb79fef03 96
kevman 0:38ceb79fef03 97 /* Thread safety */
kevman 0:38ceb79fef03 98 static osMutexId_t std_mutex_id_sys[_MAX_LOCK] = {0};
kevman 0:38ceb79fef03 99 static mbed_rtos_storage_mutex_t std_mutex_sys[_MAX_LOCK] = {0};
kevman 0:38ceb79fef03 100 #define _FOPEN_MAX 10
kevman 0:38ceb79fef03 101 static osMutexId_t std_mutex_id_file[_FOPEN_MAX] = {0};
kevman 0:38ceb79fef03 102 static mbed_rtos_storage_mutex_t std_mutex_file[_FOPEN_MAX] = {0};
kevman 0:38ceb79fef03 103
kevman 0:38ceb79fef03 104 void __iar_system_Mtxinit(__iar_Rmtx *mutex) /* Initialize a system lock */
kevman 0:38ceb79fef03 105 {
kevman 0:38ceb79fef03 106 osMutexAttr_t attr;
kevman 0:38ceb79fef03 107 uint32_t index;
kevman 0:38ceb79fef03 108 for (index = 0; index < _MAX_LOCK; index++) {
kevman 0:38ceb79fef03 109 if (0 == std_mutex_id_sys[index]) {
kevman 0:38ceb79fef03 110 attr.name = "system_mutex";
kevman 0:38ceb79fef03 111 attr.cb_mem = &std_mutex_sys[index];
kevman 0:38ceb79fef03 112 attr.cb_size = sizeof(std_mutex_sys[index]);
kevman 0:38ceb79fef03 113 attr.attr_bits = osMutexRecursive | osMutexPrioInherit | osMutexRobust;
kevman 0:38ceb79fef03 114 std_mutex_id_sys[index] = osMutexNew(&attr);
kevman 0:38ceb79fef03 115 *mutex = (__iar_Rmtx*)&std_mutex_id_sys[index];
kevman 0:38ceb79fef03 116 return;
kevman 0:38ceb79fef03 117 }
kevman 0:38ceb79fef03 118 }
kevman 0:38ceb79fef03 119
kevman 0:38ceb79fef03 120 /* This should never happen */
kevman 0:38ceb79fef03 121 error("Not enough mutexes\n");
kevman 0:38ceb79fef03 122 }
kevman 0:38ceb79fef03 123
kevman 0:38ceb79fef03 124 void __iar_system_Mtxdst(__iar_Rmtx *mutex) /* Destroy a system lock */
kevman 0:38ceb79fef03 125 {
kevman 0:38ceb79fef03 126 osMutexDelete(*(osMutexId_t*)*mutex);
kevman 0:38ceb79fef03 127 *mutex = 0;
kevman 0:38ceb79fef03 128 }
kevman 0:38ceb79fef03 129
kevman 0:38ceb79fef03 130 void __iar_system_Mtxlock(__iar_Rmtx *mutex) /* Lock a system lock */
kevman 0:38ceb79fef03 131 {
kevman 0:38ceb79fef03 132 osMutexAcquire(*(osMutexId_t*)*mutex, osWaitForever);
kevman 0:38ceb79fef03 133 }
kevman 0:38ceb79fef03 134
kevman 0:38ceb79fef03 135 void __iar_system_Mtxunlock(__iar_Rmtx *mutex) /* Unlock a system lock */
kevman 0:38ceb79fef03 136 {
kevman 0:38ceb79fef03 137 osMutexRelease(*(osMutexId_t*)*mutex);
kevman 0:38ceb79fef03 138 }
kevman 0:38ceb79fef03 139
kevman 0:38ceb79fef03 140 void __iar_file_Mtxinit(__iar_Rmtx *mutex) /* Initialize a file lock */
kevman 0:38ceb79fef03 141 {
kevman 0:38ceb79fef03 142 osMutexAttr_t attr;
kevman 0:38ceb79fef03 143 uint32_t index;
kevman 0:38ceb79fef03 144 for (index = 0; index < _FOPEN_MAX; index++) {
kevman 0:38ceb79fef03 145 if (0 == std_mutex_id_file[index]) {
kevman 0:38ceb79fef03 146 attr.name = "file_mutex";
kevman 0:38ceb79fef03 147 attr.cb_mem = &std_mutex_file[index];
kevman 0:38ceb79fef03 148 attr.cb_size = sizeof(std_mutex_file[index]);
kevman 0:38ceb79fef03 149 attr.attr_bits = osMutexRecursive | osMutexPrioInherit | osMutexRobust;
kevman 0:38ceb79fef03 150 std_mutex_id_file[index] = osMutexNew(&attr);
kevman 0:38ceb79fef03 151 *mutex = (__iar_Rmtx*)&std_mutex_id_file[index];
kevman 0:38ceb79fef03 152 return;
kevman 0:38ceb79fef03 153 }
kevman 0:38ceb79fef03 154 }
kevman 0:38ceb79fef03 155 /* The variable _FOPEN_MAX needs to be increased */
kevman 0:38ceb79fef03 156 error("Not enough mutexes\n");
kevman 0:38ceb79fef03 157 }
kevman 0:38ceb79fef03 158
kevman 0:38ceb79fef03 159 void __iar_file_Mtxdst(__iar_Rmtx *mutex) /* Destroy a file lock */
kevman 0:38ceb79fef03 160 {
kevman 0:38ceb79fef03 161 osMutexDelete(*(osMutexId_t*)*mutex);
kevman 0:38ceb79fef03 162 *mutex = 0;
kevman 0:38ceb79fef03 163 }
kevman 0:38ceb79fef03 164
kevman 0:38ceb79fef03 165 void __iar_file_Mtxlock(__iar_Rmtx *mutex) /* Lock a file lock */
kevman 0:38ceb79fef03 166 {
kevman 0:38ceb79fef03 167 osMutexAcquire(*(osMutexId_t*)*mutex, osWaitForever);
kevman 0:38ceb79fef03 168 }
kevman 0:38ceb79fef03 169
kevman 0:38ceb79fef03 170 void __iar_file_Mtxunlock(__iar_Rmtx *mutex) /* Unlock a file lock */
kevman 0:38ceb79fef03 171 {
kevman 0:38ceb79fef03 172 osMutexRelease(*(osMutexId_t*)*mutex);
kevman 0:38ceb79fef03 173 }