Yasushi TAUCHI / Mbed 2 deprecated giken9_HTMLServer_Sample

ソースの整理中ですが、利用はできます。

Dependencies:   EthernetInterface HttpServer TextLCD mbed-rpc mbed-rtos mbed Socket lwip-eth lwip-sys lwip

mbed-rtos/rtx/TARGET_M0P/TOOLCHAIN_ARM/HAL_CM0.c@0:7766f6712673, 2014-03-12 (annotated)

Committer:
yueee_yt
Date:
Wed Mar 12 04:19:54 2014 +0000
Revision:
0:7766f6712673
???????????????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yueee_yt 0:7766f6712673 1 /*----------------------------------------------------------------------------
yueee_yt 0:7766f6712673 2 * RL-ARM - RTX
yueee_yt 0:7766f6712673 3 *----------------------------------------------------------------------------
yueee_yt 0:7766f6712673 4 * Name: HAL_CM0.C
yueee_yt 0:7766f6712673 5 * Purpose: Hardware Abstraction Layer for Cortex-M0
yueee_yt 0:7766f6712673 6 * Rev.: V4.60
yueee_yt 0:7766f6712673 7 *----------------------------------------------------------------------------
yueee_yt 0:7766f6712673 8 *
yueee_yt 0:7766f6712673 9 * Copyright (c) 1999-2009 KEIL, 2009-2012 ARM Germany GmbH
yueee_yt 0:7766f6712673 10 * All rights reserved.
yueee_yt 0:7766f6712673 11 * Redistribution and use in source and binary forms, with or without
yueee_yt 0:7766f6712673 12 * modification, are permitted provided that the following conditions are met:
yueee_yt 0:7766f6712673 13 * - Redistributions of source code must retain the above copyright
yueee_yt 0:7766f6712673 14 * notice, this list of conditions and the following disclaimer.
yueee_yt 0:7766f6712673 15 * - Redistributions in binary form must reproduce the above copyright
yueee_yt 0:7766f6712673 16 * notice, this list of conditions and the following disclaimer in the
yueee_yt 0:7766f6712673 17 * documentation and/or other materials provided with the distribution.
yueee_yt 0:7766f6712673 18 * - Neither the name of ARM nor the names of its contributors may be used
yueee_yt 0:7766f6712673 19 * to endorse or promote products derived from this software without
yueee_yt 0:7766f6712673 20 * specific prior written permission.
yueee_yt 0:7766f6712673 21 *
yueee_yt 0:7766f6712673 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
yueee_yt 0:7766f6712673 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
yueee_yt 0:7766f6712673 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
yueee_yt 0:7766f6712673 25 * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
yueee_yt 0:7766f6712673 26 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
yueee_yt 0:7766f6712673 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
yueee_yt 0:7766f6712673 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
yueee_yt 0:7766f6712673 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
yueee_yt 0:7766f6712673 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
yueee_yt 0:7766f6712673 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
yueee_yt 0:7766f6712673 32 * POSSIBILITY OF SUCH DAMAGE.
yueee_yt 0:7766f6712673 33 *---------------------------------------------------------------------------*/
yueee_yt 0:7766f6712673 34
yueee_yt 0:7766f6712673 35 #include "rt_TypeDef.h"
yueee_yt 0:7766f6712673 36 #include "RTX_Conf.h"
yueee_yt 0:7766f6712673 37 #include "rt_System.h"
yueee_yt 0:7766f6712673 38 #include "rt_HAL_CM.h"
yueee_yt 0:7766f6712673 39 #include "rt_Task.h"
yueee_yt 0:7766f6712673 40 #include "rt_MemBox.h"
yueee_yt 0:7766f6712673 41
yueee_yt 0:7766f6712673 42
yueee_yt 0:7766f6712673 43 /*----------------------------------------------------------------------------
yueee_yt 0:7766f6712673 44 * Functions
yueee_yt 0:7766f6712673 45 *---------------------------------------------------------------------------*/
yueee_yt 0:7766f6712673 46
yueee_yt 0:7766f6712673 47
yueee_yt 0:7766f6712673 48 /*--------------------------- rt_set_PSP ------------------------------------*/
yueee_yt 0:7766f6712673 49
yueee_yt 0:7766f6712673 50 __asm void rt_set_PSP (U32 stack) {
yueee_yt 0:7766f6712673 51 MSR PSP,R0
yueee_yt 0:7766f6712673 52 BX LR
yueee_yt 0:7766f6712673 53 }
yueee_yt 0:7766f6712673 54
yueee_yt 0:7766f6712673 55
yueee_yt 0:7766f6712673 56 /*--------------------------- rt_get_PSP ------------------------------------*/
yueee_yt 0:7766f6712673 57
yueee_yt 0:7766f6712673 58 __asm U32 rt_get_PSP (void) {
yueee_yt 0:7766f6712673 59 MRS R0,PSP
yueee_yt 0:7766f6712673 60 BX LR
yueee_yt 0:7766f6712673 61 }
yueee_yt 0:7766f6712673 62
yueee_yt 0:7766f6712673 63
yueee_yt 0:7766f6712673 64 /*--------------------------- os_set_env ------------------------------------*/
yueee_yt 0:7766f6712673 65
yueee_yt 0:7766f6712673 66 __asm void os_set_env (void) {
yueee_yt 0:7766f6712673 67 /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
yueee_yt 0:7766f6712673 68 MOV R0,SP ; PSP = MSP
yueee_yt 0:7766f6712673 69 MSR PSP,R0
yueee_yt 0:7766f6712673 70 LDR R0,=__cpp(&os_flags)
yueee_yt 0:7766f6712673 71 LDRB R0,[R0]
yueee_yt 0:7766f6712673 72 LSLS R0,#31
yueee_yt 0:7766f6712673 73 BNE PrivilegedE
yueee_yt 0:7766f6712673 74 MOVS R0,#0x03 ; Unprivileged Thread mode, use PSP
yueee_yt 0:7766f6712673 75 MSR CONTROL,R0
yueee_yt 0:7766f6712673 76 BX LR
yueee_yt 0:7766f6712673 77 PrivilegedE
yueee_yt 0:7766f6712673 78 MOVS R0,#0x02 ; Privileged Thread mode, use PSP
yueee_yt 0:7766f6712673 79 MSR CONTROL,R0
yueee_yt 0:7766f6712673 80 BX LR
yueee_yt 0:7766f6712673 81
yueee_yt 0:7766f6712673 82 ALIGN
yueee_yt 0:7766f6712673 83 }
yueee_yt 0:7766f6712673 84
yueee_yt 0:7766f6712673 85
yueee_yt 0:7766f6712673 86 /*--------------------------- _alloc_box ------------------------------------*/
yueee_yt 0:7766f6712673 87
yueee_yt 0:7766f6712673 88 __asm void *_alloc_box (void *box_mem) {
yueee_yt 0:7766f6712673 89 /* Function wrapper for Unprivileged/Privileged mode. */
yueee_yt 0:7766f6712673 90 LDR R3,=__cpp(rt_alloc_box)
yueee_yt 0:7766f6712673 91 MOV R12,R3
yueee_yt 0:7766f6712673 92 MRS R3,IPSR
yueee_yt 0:7766f6712673 93 LSLS R3,#24
yueee_yt 0:7766f6712673 94 BNE PrivilegedA
yueee_yt 0:7766f6712673 95 MRS R3,CONTROL
yueee_yt 0:7766f6712673 96 LSLS R3,#31
yueee_yt 0:7766f6712673 97 BEQ PrivilegedA
yueee_yt 0:7766f6712673 98 SVC 0
yueee_yt 0:7766f6712673 99 BX LR
yueee_yt 0:7766f6712673 100 PrivilegedA
yueee_yt 0:7766f6712673 101 BX R12
yueee_yt 0:7766f6712673 102
yueee_yt 0:7766f6712673 103 ALIGN
yueee_yt 0:7766f6712673 104 }
yueee_yt 0:7766f6712673 105
yueee_yt 0:7766f6712673 106
yueee_yt 0:7766f6712673 107 /*--------------------------- _free_box -------------------------------------*/
yueee_yt 0:7766f6712673 108
yueee_yt 0:7766f6712673 109 __asm int _free_box (void *box_mem, void *box) {
yueee_yt 0:7766f6712673 110 /* Function wrapper for Unprivileged/Privileged mode. */
yueee_yt 0:7766f6712673 111 LDR R3,=__cpp(rt_free_box)
yueee_yt 0:7766f6712673 112 MOV R12,R3
yueee_yt 0:7766f6712673 113 MRS R3,IPSR
yueee_yt 0:7766f6712673 114 LSLS R3,#24
yueee_yt 0:7766f6712673 115 BNE PrivilegedF
yueee_yt 0:7766f6712673 116 MRS R3,CONTROL
yueee_yt 0:7766f6712673 117 LSLS R3,#31
yueee_yt 0:7766f6712673 118 BEQ PrivilegedF
yueee_yt 0:7766f6712673 119 SVC 0
yueee_yt 0:7766f6712673 120 BX LR
yueee_yt 0:7766f6712673 121 PrivilegedF
yueee_yt 0:7766f6712673 122 BX R12
yueee_yt 0:7766f6712673 123
yueee_yt 0:7766f6712673 124 ALIGN
yueee_yt 0:7766f6712673 125 }
yueee_yt 0:7766f6712673 126
yueee_yt 0:7766f6712673 127
yueee_yt 0:7766f6712673 128 /*-------------------------- SVC_Handler ------------------------------------*/
yueee_yt 0:7766f6712673 129
yueee_yt 0:7766f6712673 130 __asm void SVC_Handler (void) {
yueee_yt 0:7766f6712673 131 PRESERVE8
yueee_yt 0:7766f6712673 132
yueee_yt 0:7766f6712673 133 IMPORT SVC_Count
yueee_yt 0:7766f6712673 134 IMPORT SVC_Table
yueee_yt 0:7766f6712673 135 IMPORT rt_stk_check
yueee_yt 0:7766f6712673 136
yueee_yt 0:7766f6712673 137 MRS R0,PSP ; Read PSP
yueee_yt 0:7766f6712673 138 LDR R1,[R0,#24] ; Read Saved PC from Stack
yueee_yt 0:7766f6712673 139 SUBS R1,R1,#2 ; Point to SVC Instruction
yueee_yt 0:7766f6712673 140 LDRB R1,[R1] ; Load SVC Number
yueee_yt 0:7766f6712673 141 CMP R1,#0
yueee_yt 0:7766f6712673 142 BNE SVC_User ; User SVC Number > 0
yueee_yt 0:7766f6712673 143
yueee_yt 0:7766f6712673 144 MOV LR,R4
yueee_yt 0:7766f6712673 145 LDMIA R0,{R0-R3,R4} ; Read R0-R3,R12 from stack
yueee_yt 0:7766f6712673 146 MOV R12,R4
yueee_yt 0:7766f6712673 147 MOV R4,LR
yueee_yt 0:7766f6712673 148 BLX R12 ; Call SVC Function
yueee_yt 0:7766f6712673 149
yueee_yt 0:7766f6712673 150 MRS R3,PSP ; Read PSP
yueee_yt 0:7766f6712673 151 STMIA R3!,{R0-R2} ; Store return values
yueee_yt 0:7766f6712673 152
yueee_yt 0:7766f6712673 153 LDR R3,=__cpp(&os_tsk)
yueee_yt 0:7766f6712673 154 LDMIA R3!,{R1,R2} ; os_tsk.run, os_tsk.new
yueee_yt 0:7766f6712673 155 CMP R1,R2
yueee_yt 0:7766f6712673 156 BEQ SVC_Exit ; no task switch
yueee_yt 0:7766f6712673 157
yueee_yt 0:7766f6712673 158 SUBS R3,#8
yueee_yt 0:7766f6712673 159 CMP R1,#0 ; Runtask deleted?
yueee_yt 0:7766f6712673 160 BEQ SVC_Next
yueee_yt 0:7766f6712673 161
yueee_yt 0:7766f6712673 162 MRS R0,PSP ; Read PSP
yueee_yt 0:7766f6712673 163 SUBS R0,R0,#32 ; Adjust Start Address
yueee_yt 0:7766f6712673 164 STR R0,[R1,#TCB_TSTACK] ; Update os_tsk.run->tsk_stack
yueee_yt 0:7766f6712673 165 STMIA R0!,{R4-R7} ; Save old context (R4-R7)
yueee_yt 0:7766f6712673 166 MOV R4,R8
yueee_yt 0:7766f6712673 167 MOV R5,R9
yueee_yt 0:7766f6712673 168 MOV R6,R10
yueee_yt 0:7766f6712673 169 MOV R7,R11
yueee_yt 0:7766f6712673 170 STMIA R0!,{R4-R7} ; Save old context (R8-R11)
yueee_yt 0:7766f6712673 171
yueee_yt 0:7766f6712673 172 PUSH {R2,R3}
yueee_yt 0:7766f6712673 173 BL rt_stk_check ; Check for Stack overflow
yueee_yt 0:7766f6712673 174 POP {R2,R3}
yueee_yt 0:7766f6712673 175
yueee_yt 0:7766f6712673 176 SVC_Next
yueee_yt 0:7766f6712673 177 STR R2,[R3] ; os_tsk.run = os_tsk.new
yueee_yt 0:7766f6712673 178
yueee_yt 0:7766f6712673 179 LDR R0,[R2,#TCB_TSTACK] ; os_tsk.new->tsk_stack
yueee_yt 0:7766f6712673 180 ADDS R0,R0,#16 ; Adjust Start Address
yueee_yt 0:7766f6712673 181 LDMIA R0!,{R4-R7} ; Restore new Context (R8-R11)
yueee_yt 0:7766f6712673 182 MOV R8,R4
yueee_yt 0:7766f6712673 183 MOV R9,R5
yueee_yt 0:7766f6712673 184 MOV R10,R6
yueee_yt 0:7766f6712673 185 MOV R11,R7
yueee_yt 0:7766f6712673 186 MSR PSP,R0 ; Write PSP
yueee_yt 0:7766f6712673 187 SUBS R0,R0,#32 ; Adjust Start Address
yueee_yt 0:7766f6712673 188 LDMIA R0!,{R4-R7} ; Restore new Context (R4-R7)
yueee_yt 0:7766f6712673 189
yueee_yt 0:7766f6712673 190 SVC_Exit
yueee_yt 0:7766f6712673 191 MOVS R0,#:NOT:0xFFFFFFFD ; Set EXC_RETURN value
yueee_yt 0:7766f6712673 192 MVNS R0,R0
yueee_yt 0:7766f6712673 193 BX R0 ; RETI to Thread Mode, use PSP
yueee_yt 0:7766f6712673 194
yueee_yt 0:7766f6712673 195 /*------------------- User SVC ------------------------------*/
yueee_yt 0:7766f6712673 196
yueee_yt 0:7766f6712673 197 SVC_User
yueee_yt 0:7766f6712673 198 PUSH {R4,LR} ; Save Registers
yueee_yt 0:7766f6712673 199 LDR R2,=SVC_Count
yueee_yt 0:7766f6712673 200 LDR R2,[R2]
yueee_yt 0:7766f6712673 201 CMP R1,R2
yueee_yt 0:7766f6712673 202 BHI SVC_Done ; Overflow
yueee_yt 0:7766f6712673 203
yueee_yt 0:7766f6712673 204 LDR R4,=SVC_Table-4
yueee_yt 0:7766f6712673 205 LSLS R1,R1,#2
yueee_yt 0:7766f6712673 206 LDR R4,[R4,R1] ; Load SVC Function Address
yueee_yt 0:7766f6712673 207 MOV LR,R4
yueee_yt 0:7766f6712673 208
yueee_yt 0:7766f6712673 209 LDMIA R0,{R0-R3,R4} ; Read R0-R3,R12 from stack
yueee_yt 0:7766f6712673 210 MOV R12,R4
yueee_yt 0:7766f6712673 211 BLX LR ; Call SVC Function
yueee_yt 0:7766f6712673 212
yueee_yt 0:7766f6712673 213 MRS R4,PSP ; Read PSP
yueee_yt 0:7766f6712673 214 STMIA R4!,{R0-R3} ; Function return values
yueee_yt 0:7766f6712673 215 SVC_Done
yueee_yt 0:7766f6712673 216 POP {R4,PC} ; RETI
yueee_yt 0:7766f6712673 217
yueee_yt 0:7766f6712673 218 ALIGN
yueee_yt 0:7766f6712673 219 }
yueee_yt 0:7766f6712673 220
yueee_yt 0:7766f6712673 221
yueee_yt 0:7766f6712673 222 /*-------------------------- PendSV_Handler ---------------------------------*/
yueee_yt 0:7766f6712673 223
yueee_yt 0:7766f6712673 224 __asm void PendSV_Handler (void) {
yueee_yt 0:7766f6712673 225 PRESERVE8
yueee_yt 0:7766f6712673 226
yueee_yt 0:7766f6712673 227 BL __cpp(rt_pop_req)
yueee_yt 0:7766f6712673 228
yueee_yt 0:7766f6712673 229 Sys_Switch
yueee_yt 0:7766f6712673 230 LDR R3,=__cpp(&os_tsk)
yueee_yt 0:7766f6712673 231 LDMIA R3!,{R1,R2} ; os_tsk.run, os_tsk.new
yueee_yt 0:7766f6712673 232 CMP R1,R2
yueee_yt 0:7766f6712673 233 BEQ Sys_Exit ; no task switch
yueee_yt 0:7766f6712673 234
yueee_yt 0:7766f6712673 235 SUBS R3,#8
yueee_yt 0:7766f6712673 236
yueee_yt 0:7766f6712673 237 MRS R0,PSP ; Read PSP
yueee_yt 0:7766f6712673 238 SUBS R0,R0,#32 ; Adjust Start Address
yueee_yt 0:7766f6712673 239 STR R0,[R1,#TCB_TSTACK] ; Update os_tsk.run->tsk_stack
yueee_yt 0:7766f6712673 240 STMIA R0!,{R4-R7} ; Save old context (R4-R7)
yueee_yt 0:7766f6712673 241 MOV R4,R8
yueee_yt 0:7766f6712673 242 MOV R5,R9
yueee_yt 0:7766f6712673 243 MOV R6,R10
yueee_yt 0:7766f6712673 244 MOV R7,R11
yueee_yt 0:7766f6712673 245 STMIA R0!,{R4-R7} ; Save old context (R8-R11)
yueee_yt 0:7766f6712673 246
yueee_yt 0:7766f6712673 247 PUSH {R2,R3}
yueee_yt 0:7766f6712673 248 BL rt_stk_check ; Check for Stack overflow
yueee_yt 0:7766f6712673 249 POP {R2,R3}
yueee_yt 0:7766f6712673 250
yueee_yt 0:7766f6712673 251 STR R2,[R3] ; os_tsk.run = os_tsk.new
yueee_yt 0:7766f6712673 252
yueee_yt 0:7766f6712673 253 LDR R0,[R2,#TCB_TSTACK] ; os_tsk.new->tsk_stack
yueee_yt 0:7766f6712673 254 ADDS R0,R0,#16 ; Adjust Start Address
yueee_yt 0:7766f6712673 255 LDMIA R0!,{R4-R7} ; Restore new Context (R8-R11)
yueee_yt 0:7766f6712673 256 MOV R8,R4
yueee_yt 0:7766f6712673 257 MOV R9,R5
yueee_yt 0:7766f6712673 258 MOV R10,R6
yueee_yt 0:7766f6712673 259 MOV R11,R7
yueee_yt 0:7766f6712673 260 MSR PSP,R0 ; Write PSP
yueee_yt 0:7766f6712673 261 SUBS R0,R0,#32 ; Adjust Start Address
yueee_yt 0:7766f6712673 262 LDMIA R0!,{R4-R7} ; Restore new Context (R4-R7)
yueee_yt 0:7766f6712673 263
yueee_yt 0:7766f6712673 264 Sys_Exit
yueee_yt 0:7766f6712673 265 MOVS R0,#:NOT:0xFFFFFFFD ; Set EXC_RETURN value
yueee_yt 0:7766f6712673 266 MVNS R0,R0
yueee_yt 0:7766f6712673 267 BX R0 ; RETI to Thread Mode, use PSP
yueee_yt 0:7766f6712673 268
yueee_yt 0:7766f6712673 269 ALIGN
yueee_yt 0:7766f6712673 270 }
yueee_yt 0:7766f6712673 271
yueee_yt 0:7766f6712673 272
yueee_yt 0:7766f6712673 273 /*-------------------------- SysTick_Handler --------------------------------*/
yueee_yt 0:7766f6712673 274
yueee_yt 0:7766f6712673 275 __asm void SysTick_Handler (void) {
yueee_yt 0:7766f6712673 276 PRESERVE8
yueee_yt 0:7766f6712673 277
yueee_yt 0:7766f6712673 278 BL __cpp(rt_systick)
yueee_yt 0:7766f6712673 279 B Sys_Switch
yueee_yt 0:7766f6712673 280
yueee_yt 0:7766f6712673 281 ALIGN
yueee_yt 0:7766f6712673 282 }
yueee_yt 0:7766f6712673 283
yueee_yt 0:7766f6712673 284
yueee_yt 0:7766f6712673 285 /*-------------------------- OS_Tick_Handler --------------------------------*/
yueee_yt 0:7766f6712673 286
yueee_yt 0:7766f6712673 287 __asm void OS_Tick_Handler (void) {
yueee_yt 0:7766f6712673 288 PRESERVE8
yueee_yt 0:7766f6712673 289
yueee_yt 0:7766f6712673 290 BL __cpp(os_tick_irqack)
yueee_yt 0:7766f6712673 291 BL __cpp(rt_systick)
yueee_yt 0:7766f6712673 292 B Sys_Switch
yueee_yt 0:7766f6712673 293
yueee_yt 0:7766f6712673 294 ALIGN
yueee_yt 0:7766f6712673 295 }
yueee_yt 0:7766f6712673 296
yueee_yt 0:7766f6712673 297
yueee_yt 0:7766f6712673 298 /*----------------------------------------------------------------------------
yueee_yt 0:7766f6712673 299 * end of file
yueee_yt 0:7766f6712673 300 *---------------------------------------------------------------------------*/
yueee_yt 0:7766f6712673 301