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Dependencies: F7_Ethernet WebSocketClient mbed mcp3008
Fork of Nucleo_F746ZG_Ethernet by
mbed-rtos/rtx/TARGET_CORTEX_A/rt_MemBox.c@0:f9b6112278fe, 2016-06-18 (annotated)
- Committer:
- DieterGraef
- Date:
- Sat Jun 18 10:49:12 2016 +0000
- Revision:
- 0:f9b6112278fe
Ethernet for the NUCLEO STM32F746 Board Testprogram uses DHCP and NTP to set the clock
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
DieterGraef | 0:f9b6112278fe | 1 | /*---------------------------------------------------------------------------- |
DieterGraef | 0:f9b6112278fe | 2 | * RL-ARM - RTX |
DieterGraef | 0:f9b6112278fe | 3 | *---------------------------------------------------------------------------- |
DieterGraef | 0:f9b6112278fe | 4 | * Name: RT_MEMBOX.C |
DieterGraef | 0:f9b6112278fe | 5 | * Purpose: Interface functions for fixed memory block management system |
DieterGraef | 0:f9b6112278fe | 6 | * Rev.: V4.70 |
DieterGraef | 0:f9b6112278fe | 7 | *---------------------------------------------------------------------------- |
DieterGraef | 0:f9b6112278fe | 8 | * |
DieterGraef | 0:f9b6112278fe | 9 | * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH |
DieterGraef | 0:f9b6112278fe | 10 | * All rights reserved. |
DieterGraef | 0:f9b6112278fe | 11 | * Redistribution and use in source and binary forms, with or without |
DieterGraef | 0:f9b6112278fe | 12 | * modification, are permitted provided that the following conditions are met: |
DieterGraef | 0:f9b6112278fe | 13 | * - Redistributions of source code must retain the above copyright |
DieterGraef | 0:f9b6112278fe | 14 | * notice, this list of conditions and the following disclaimer. |
DieterGraef | 0:f9b6112278fe | 15 | * - Redistributions in binary form must reproduce the above copyright |
DieterGraef | 0:f9b6112278fe | 16 | * notice, this list of conditions and the following disclaimer in the |
DieterGraef | 0:f9b6112278fe | 17 | * documentation and/or other materials provided with the distribution. |
DieterGraef | 0:f9b6112278fe | 18 | * - Neither the name of ARM nor the names of its contributors may be used |
DieterGraef | 0:f9b6112278fe | 19 | * to endorse or promote products derived from this software without |
DieterGraef | 0:f9b6112278fe | 20 | * specific prior written permission. |
DieterGraef | 0:f9b6112278fe | 21 | * |
DieterGraef | 0:f9b6112278fe | 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
DieterGraef | 0:f9b6112278fe | 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
DieterGraef | 0:f9b6112278fe | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
DieterGraef | 0:f9b6112278fe | 25 | * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE |
DieterGraef | 0:f9b6112278fe | 26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
DieterGraef | 0:f9b6112278fe | 27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
DieterGraef | 0:f9b6112278fe | 28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
DieterGraef | 0:f9b6112278fe | 29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
DieterGraef | 0:f9b6112278fe | 30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
DieterGraef | 0:f9b6112278fe | 31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
DieterGraef | 0:f9b6112278fe | 32 | * POSSIBILITY OF SUCH DAMAGE. |
DieterGraef | 0:f9b6112278fe | 33 | *---------------------------------------------------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 34 | |
DieterGraef | 0:f9b6112278fe | 35 | #include "rt_TypeDef.h" |
DieterGraef | 0:f9b6112278fe | 36 | #include "RTX_Config.h" |
DieterGraef | 0:f9b6112278fe | 37 | #include "rt_System.h" |
DieterGraef | 0:f9b6112278fe | 38 | #include "rt_MemBox.h" |
DieterGraef | 0:f9b6112278fe | 39 | #ifdef __CORTEX_A9 |
DieterGraef | 0:f9b6112278fe | 40 | #include "rt_HAL_CA.h" |
DieterGraef | 0:f9b6112278fe | 41 | #else |
DieterGraef | 0:f9b6112278fe | 42 | #include "rt_HAL_CM.h" |
DieterGraef | 0:f9b6112278fe | 43 | #endif |
DieterGraef | 0:f9b6112278fe | 44 | |
DieterGraef | 0:f9b6112278fe | 45 | /*---------------------------------------------------------------------------- |
DieterGraef | 0:f9b6112278fe | 46 | * Global Functions |
DieterGraef | 0:f9b6112278fe | 47 | *---------------------------------------------------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 48 | |
DieterGraef | 0:f9b6112278fe | 49 | |
DieterGraef | 0:f9b6112278fe | 50 | /*--------------------------- _init_box -------------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 51 | |
DieterGraef | 0:f9b6112278fe | 52 | int _init_box (void *box_mem, U32 box_size, U32 blk_size) { |
DieterGraef | 0:f9b6112278fe | 53 | /* Initialize memory block system, returns 0 if OK, 1 if fails. */ |
DieterGraef | 0:f9b6112278fe | 54 | void *end; |
DieterGraef | 0:f9b6112278fe | 55 | void *blk; |
DieterGraef | 0:f9b6112278fe | 56 | void *next; |
DieterGraef | 0:f9b6112278fe | 57 | U32 sizeof_bm; |
DieterGraef | 0:f9b6112278fe | 58 | |
DieterGraef | 0:f9b6112278fe | 59 | /* Create memory structure. */ |
DieterGraef | 0:f9b6112278fe | 60 | if (blk_size & BOX_ALIGN_8) { |
DieterGraef | 0:f9b6112278fe | 61 | /* Memory blocks 8-byte aligned. */ |
DieterGraef | 0:f9b6112278fe | 62 | blk_size = ((blk_size & ~BOX_ALIGN_8) + 7) & ~7; |
DieterGraef | 0:f9b6112278fe | 63 | sizeof_bm = (sizeof (struct OS_BM) + 7) & ~7; |
DieterGraef | 0:f9b6112278fe | 64 | } |
DieterGraef | 0:f9b6112278fe | 65 | else { |
DieterGraef | 0:f9b6112278fe | 66 | /* Memory blocks 4-byte aligned. */ |
DieterGraef | 0:f9b6112278fe | 67 | blk_size = (blk_size + 3) & ~3; |
DieterGraef | 0:f9b6112278fe | 68 | sizeof_bm = sizeof (struct OS_BM); |
DieterGraef | 0:f9b6112278fe | 69 | } |
DieterGraef | 0:f9b6112278fe | 70 | if (blk_size == 0) { |
DieterGraef | 0:f9b6112278fe | 71 | return (1); |
DieterGraef | 0:f9b6112278fe | 72 | } |
DieterGraef | 0:f9b6112278fe | 73 | if ((blk_size + sizeof_bm) > box_size) { |
DieterGraef | 0:f9b6112278fe | 74 | return (1); |
DieterGraef | 0:f9b6112278fe | 75 | } |
DieterGraef | 0:f9b6112278fe | 76 | /* Create a Memory structure. */ |
DieterGraef | 0:f9b6112278fe | 77 | blk = ((U8 *) box_mem) + sizeof_bm; |
DieterGraef | 0:f9b6112278fe | 78 | ((P_BM) box_mem)->free = blk; |
DieterGraef | 0:f9b6112278fe | 79 | end = ((U8 *) box_mem) + box_size; |
DieterGraef | 0:f9b6112278fe | 80 | ((P_BM) box_mem)->end = end; |
DieterGraef | 0:f9b6112278fe | 81 | ((P_BM) box_mem)->blk_size = blk_size; |
DieterGraef | 0:f9b6112278fe | 82 | |
DieterGraef | 0:f9b6112278fe | 83 | /* Link all free blocks using offsets. */ |
DieterGraef | 0:f9b6112278fe | 84 | end = ((U8 *) end) - blk_size; |
DieterGraef | 0:f9b6112278fe | 85 | while (1) { |
DieterGraef | 0:f9b6112278fe | 86 | next = ((U8 *) blk) + blk_size; |
DieterGraef | 0:f9b6112278fe | 87 | if (next > end) break; |
DieterGraef | 0:f9b6112278fe | 88 | *((void **)blk) = next; |
DieterGraef | 0:f9b6112278fe | 89 | blk = next; |
DieterGraef | 0:f9b6112278fe | 90 | } |
DieterGraef | 0:f9b6112278fe | 91 | /* end marker */ |
DieterGraef | 0:f9b6112278fe | 92 | *((void **)blk) = 0; |
DieterGraef | 0:f9b6112278fe | 93 | return (0); |
DieterGraef | 0:f9b6112278fe | 94 | } |
DieterGraef | 0:f9b6112278fe | 95 | |
DieterGraef | 0:f9b6112278fe | 96 | /*--------------------------- rt_alloc_box ----------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 97 | |
DieterGraef | 0:f9b6112278fe | 98 | void *rt_alloc_box (void *box_mem) { |
DieterGraef | 0:f9b6112278fe | 99 | /* Allocate a memory block and return start address. */ |
DieterGraef | 0:f9b6112278fe | 100 | void **free; |
DieterGraef | 0:f9b6112278fe | 101 | #ifndef __USE_EXCLUSIVE_ACCESS |
DieterGraef | 0:f9b6112278fe | 102 | int irq_dis; |
DieterGraef | 0:f9b6112278fe | 103 | |
DieterGraef | 0:f9b6112278fe | 104 | |
DieterGraef | 0:f9b6112278fe | 105 | #if defined (__ICCARM__) |
DieterGraef | 0:f9b6112278fe | 106 | irq_dis = __disable_irq_iar(); |
DieterGraef | 0:f9b6112278fe | 107 | #else |
DieterGraef | 0:f9b6112278fe | 108 | irq_dis = __disable_irq (); |
DieterGraef | 0:f9b6112278fe | 109 | #endif /* __ICCARM__ */ |
DieterGraef | 0:f9b6112278fe | 110 | free = ((P_BM) box_mem)->free; |
DieterGraef | 0:f9b6112278fe | 111 | if (free) { |
DieterGraef | 0:f9b6112278fe | 112 | ((P_BM) box_mem)->free = *free; |
DieterGraef | 0:f9b6112278fe | 113 | } |
DieterGraef | 0:f9b6112278fe | 114 | if (!irq_dis) __enable_irq (); |
DieterGraef | 0:f9b6112278fe | 115 | #else |
DieterGraef | 0:f9b6112278fe | 116 | do { |
DieterGraef | 0:f9b6112278fe | 117 | if ((free = (void **)__ldrex(&((P_BM) box_mem)->free)) == 0) { |
DieterGraef | 0:f9b6112278fe | 118 | __clrex(); |
DieterGraef | 0:f9b6112278fe | 119 | break; |
DieterGraef | 0:f9b6112278fe | 120 | } |
DieterGraef | 0:f9b6112278fe | 121 | } while (__strex((U32)*free, &((P_BM) box_mem)->free)); |
DieterGraef | 0:f9b6112278fe | 122 | #endif |
DieterGraef | 0:f9b6112278fe | 123 | return (free); |
DieterGraef | 0:f9b6112278fe | 124 | } |
DieterGraef | 0:f9b6112278fe | 125 | |
DieterGraef | 0:f9b6112278fe | 126 | |
DieterGraef | 0:f9b6112278fe | 127 | /*--------------------------- _calloc_box -----------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 128 | |
DieterGraef | 0:f9b6112278fe | 129 | void *_calloc_box (void *box_mem) { |
DieterGraef | 0:f9b6112278fe | 130 | /* Allocate a 0-initialized memory block and return start address. */ |
DieterGraef | 0:f9b6112278fe | 131 | void *free; |
DieterGraef | 0:f9b6112278fe | 132 | U32 *p; |
DieterGraef | 0:f9b6112278fe | 133 | U32 i; |
DieterGraef | 0:f9b6112278fe | 134 | |
DieterGraef | 0:f9b6112278fe | 135 | free = _alloc_box (box_mem); |
DieterGraef | 0:f9b6112278fe | 136 | if (free) { |
DieterGraef | 0:f9b6112278fe | 137 | p = free; |
DieterGraef | 0:f9b6112278fe | 138 | for (i = ((P_BM) box_mem)->blk_size; i; i -= 4) { |
DieterGraef | 0:f9b6112278fe | 139 | *p = 0; |
DieterGraef | 0:f9b6112278fe | 140 | p++; |
DieterGraef | 0:f9b6112278fe | 141 | } |
DieterGraef | 0:f9b6112278fe | 142 | } |
DieterGraef | 0:f9b6112278fe | 143 | return (free); |
DieterGraef | 0:f9b6112278fe | 144 | } |
DieterGraef | 0:f9b6112278fe | 145 | |
DieterGraef | 0:f9b6112278fe | 146 | |
DieterGraef | 0:f9b6112278fe | 147 | /*--------------------------- rt_free_box -----------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 148 | |
DieterGraef | 0:f9b6112278fe | 149 | int rt_free_box (void *box_mem, void *box) { |
DieterGraef | 0:f9b6112278fe | 150 | /* Free a memory block, returns 0 if OK, 1 if box does not belong to box_mem */ |
DieterGraef | 0:f9b6112278fe | 151 | #ifndef __USE_EXCLUSIVE_ACCESS |
DieterGraef | 0:f9b6112278fe | 152 | int irq_dis; |
DieterGraef | 0:f9b6112278fe | 153 | #endif |
DieterGraef | 0:f9b6112278fe | 154 | |
DieterGraef | 0:f9b6112278fe | 155 | if (box < box_mem || box >= ((P_BM) box_mem)->end) { |
DieterGraef | 0:f9b6112278fe | 156 | return (1); |
DieterGraef | 0:f9b6112278fe | 157 | } |
DieterGraef | 0:f9b6112278fe | 158 | |
DieterGraef | 0:f9b6112278fe | 159 | #ifndef __USE_EXCLUSIVE_ACCESS |
DieterGraef | 0:f9b6112278fe | 160 | #if defined (__ICCARM__) |
DieterGraef | 0:f9b6112278fe | 161 | irq_dis = __disable_irq_iar(); |
DieterGraef | 0:f9b6112278fe | 162 | #else |
DieterGraef | 0:f9b6112278fe | 163 | irq_dis = __disable_irq (); |
DieterGraef | 0:f9b6112278fe | 164 | #endif /* __ICCARM__ */ |
DieterGraef | 0:f9b6112278fe | 165 | *((void **)box) = ((P_BM) box_mem)->free; |
DieterGraef | 0:f9b6112278fe | 166 | ((P_BM) box_mem)->free = box; |
DieterGraef | 0:f9b6112278fe | 167 | if (!irq_dis) __enable_irq (); |
DieterGraef | 0:f9b6112278fe | 168 | #else |
DieterGraef | 0:f9b6112278fe | 169 | do { |
DieterGraef | 0:f9b6112278fe | 170 | *((void **)box) = (void *)__ldrex(&((P_BM) box_mem)->free); |
DieterGraef | 0:f9b6112278fe | 171 | } while (__strex ((U32)box, &((P_BM) box_mem)->free)); |
DieterGraef | 0:f9b6112278fe | 172 | #endif |
DieterGraef | 0:f9b6112278fe | 173 | return (0); |
DieterGraef | 0:f9b6112278fe | 174 | } |
DieterGraef | 0:f9b6112278fe | 175 | |
DieterGraef | 0:f9b6112278fe | 176 | /*---------------------------------------------------------------------------- |
DieterGraef | 0:f9b6112278fe | 177 | * end of file |
DieterGraef | 0:f9b6112278fe | 178 | *---------------------------------------------------------------------------*/ |
DieterGraef | 0:f9b6112278fe | 179 |