Rtos code cntains bug possible incompatability with I2C
Fork of mbed-rtos by
rtx/TARGET_CORTEX_M/TARGET_M3/TOOLCHAIN_IAR/HAL_CM3.s@59:28712e303960, 2015-01-06 (annotated)
- Committer:
- mbed_official
- Date:
- Tue Jan 06 16:16:03 2015 +0000
- Revision:
- 59:28712e303960
- Parent:
- 53:c35dab33c427
- Child:
- 68:d3d0e710b443
Synchronized with git revision 245a60b29caabb42eabdd19658eeac7c3f68313b
Full URL: https://github.com/mbedmicro/mbed/commit/245a60b29caabb42eabdd19658eeac7c3f68313b/
NUCLEO_F072RB/F091RC - adding target to rtos lib and exporter for coide and gcc_arm
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 53:c35dab33c427 | 1 | /*---------------------------------------------------------------------------- |
mbed_official | 53:c35dab33c427 | 2 | * RL-ARM - RTX |
mbed_official | 53:c35dab33c427 | 3 | *---------------------------------------------------------------------------- |
mbed_official | 53:c35dab33c427 | 4 | * Name: HAL_CM3.S |
mbed_official | 53:c35dab33c427 | 5 | * Purpose: Hardware Abstraction Layer for Cortex-M3 |
mbed_official | 53:c35dab33c427 | 6 | * Rev.: V4.70 |
mbed_official | 53:c35dab33c427 | 7 | *---------------------------------------------------------------------------- |
mbed_official | 53:c35dab33c427 | 8 | * |
mbed_official | 53:c35dab33c427 | 9 | * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH |
mbed_official | 53:c35dab33c427 | 10 | * All rights reserved. |
mbed_official | 53:c35dab33c427 | 11 | * Redistribution and use in source and binary forms, with or without |
mbed_official | 53:c35dab33c427 | 12 | * modification, are permitted provided that the following conditions are met: |
mbed_official | 53:c35dab33c427 | 13 | * - Redistributions of source code must retain the above copyright |
mbed_official | 53:c35dab33c427 | 14 | * notice, this list of conditions and the following disclaimer. |
mbed_official | 53:c35dab33c427 | 15 | * - Redistributions in binary form must reproduce the above copyright |
mbed_official | 53:c35dab33c427 | 16 | * notice, this list of conditions and the following disclaimer in the |
mbed_official | 53:c35dab33c427 | 17 | * documentation and/or other materials provided with the distribution. |
mbed_official | 53:c35dab33c427 | 18 | * - Neither the name of ARM nor the names of its contributors may be used |
mbed_official | 53:c35dab33c427 | 19 | * to endorse or promote products derived from this software without |
mbed_official | 53:c35dab33c427 | 20 | * specific prior written permission. |
mbed_official | 53:c35dab33c427 | 21 | * |
mbed_official | 53:c35dab33c427 | 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 53:c35dab33c427 | 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 53:c35dab33c427 | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
mbed_official | 53:c35dab33c427 | 25 | * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE |
mbed_official | 53:c35dab33c427 | 26 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
mbed_official | 53:c35dab33c427 | 27 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
mbed_official | 53:c35dab33c427 | 28 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
mbed_official | 53:c35dab33c427 | 29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
mbed_official | 53:c35dab33c427 | 30 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
mbed_official | 53:c35dab33c427 | 31 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
mbed_official | 53:c35dab33c427 | 32 | * POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 53:c35dab33c427 | 33 | *---------------------------------------------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 34 | |
mbed_official | 53:c35dab33c427 | 35 | NAME HAL_CM3.S |
mbed_official | 53:c35dab33c427 | 36 | |
mbed_official | 59:28712e303960 | 37 | #define TCB_TSTACK 40 |
mbed_official | 53:c35dab33c427 | 38 | |
mbed_official | 53:c35dab33c427 | 39 | EXTERN os_flags |
mbed_official | 53:c35dab33c427 | 40 | EXTERN os_tsk |
mbed_official | 53:c35dab33c427 | 41 | EXTERN rt_alloc_box |
mbed_official | 53:c35dab33c427 | 42 | EXTERN rt_free_box |
mbed_official | 53:c35dab33c427 | 43 | EXTERN rt_stk_check |
mbed_official | 53:c35dab33c427 | 44 | EXTERN rt_pop_req |
mbed_official | 53:c35dab33c427 | 45 | EXTERN rt_systick |
mbed_official | 53:c35dab33c427 | 46 | EXTERN os_tick_irqack |
mbed_official | 53:c35dab33c427 | 47 | EXTERN SVC_Table |
mbed_official | 53:c35dab33c427 | 48 | EXTERN SVC_Count |
mbed_official | 53:c35dab33c427 | 49 | |
mbed_official | 53:c35dab33c427 | 50 | /*---------------------------------------------------------------------------- |
mbed_official | 53:c35dab33c427 | 51 | * Functions |
mbed_official | 53:c35dab33c427 | 52 | *---------------------------------------------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 53 | |
mbed_official | 53:c35dab33c427 | 54 | SECTION .text:CODE:NOROOT(2) |
mbed_official | 53:c35dab33c427 | 55 | THUMB |
mbed_official | 53:c35dab33c427 | 56 | |
mbed_official | 53:c35dab33c427 | 57 | /*--------------------------- rt_set_PSP ------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 58 | |
mbed_official | 53:c35dab33c427 | 59 | ; void rt_set_PSP (U32 stack); |
mbed_official | 53:c35dab33c427 | 60 | |
mbed_official | 53:c35dab33c427 | 61 | PUBLIC rt_set_PSP |
mbed_official | 53:c35dab33c427 | 62 | rt_set_PSP: |
mbed_official | 53:c35dab33c427 | 63 | |
mbed_official | 53:c35dab33c427 | 64 | MSR PSP,R0 |
mbed_official | 53:c35dab33c427 | 65 | BX LR |
mbed_official | 53:c35dab33c427 | 66 | |
mbed_official | 53:c35dab33c427 | 67 | |
mbed_official | 53:c35dab33c427 | 68 | /*--------------------------- rt_get_PSP ------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 69 | |
mbed_official | 53:c35dab33c427 | 70 | ; U32 rt_get_PSP (void); |
mbed_official | 53:c35dab33c427 | 71 | |
mbed_official | 53:c35dab33c427 | 72 | PUBLIC rt_get_PSP |
mbed_official | 53:c35dab33c427 | 73 | rt_get_PSP: |
mbed_official | 53:c35dab33c427 | 74 | |
mbed_official | 53:c35dab33c427 | 75 | MRS R0,PSP |
mbed_official | 53:c35dab33c427 | 76 | BX LR |
mbed_official | 53:c35dab33c427 | 77 | |
mbed_official | 53:c35dab33c427 | 78 | |
mbed_official | 53:c35dab33c427 | 79 | /*--------------------------- os_set_env ------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 80 | |
mbed_official | 53:c35dab33c427 | 81 | ; void os_set_env (void); |
mbed_official | 53:c35dab33c427 | 82 | /* Switch to Unprivileged/Privileged Thread mode, use PSP. */ |
mbed_official | 53:c35dab33c427 | 83 | |
mbed_official | 53:c35dab33c427 | 84 | PUBLIC os_set_env |
mbed_official | 53:c35dab33c427 | 85 | os_set_env: |
mbed_official | 53:c35dab33c427 | 86 | |
mbed_official | 53:c35dab33c427 | 87 | MOV R0,SP /* PSP = MSP */ |
mbed_official | 53:c35dab33c427 | 88 | MSR PSP,R0 |
mbed_official | 53:c35dab33c427 | 89 | LDR R0,=os_flags |
mbed_official | 53:c35dab33c427 | 90 | LDRB R0,[R0] |
mbed_official | 53:c35dab33c427 | 91 | LSLS R0,#31 |
mbed_official | 53:c35dab33c427 | 92 | ITE NE |
mbed_official | 53:c35dab33c427 | 93 | MOVNE R0,#0x02 /* Privileged Thread mode, use PSP */ |
mbed_official | 53:c35dab33c427 | 94 | MOVEQ R0,#0x03 /* Unprivileged Thread mode, use PSP */ |
mbed_official | 53:c35dab33c427 | 95 | MSR CONTROL,R0 |
mbed_official | 53:c35dab33c427 | 96 | BX LR |
mbed_official | 53:c35dab33c427 | 97 | |
mbed_official | 53:c35dab33c427 | 98 | |
mbed_official | 53:c35dab33c427 | 99 | /*--------------------------- _alloc_box ------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 100 | |
mbed_official | 53:c35dab33c427 | 101 | ; void *_alloc_box (void *box_mem); |
mbed_official | 53:c35dab33c427 | 102 | /* Function wrapper for Unprivileged/Privileged mode. */ |
mbed_official | 53:c35dab33c427 | 103 | |
mbed_official | 53:c35dab33c427 | 104 | PUBLIC _alloc_box |
mbed_official | 53:c35dab33c427 | 105 | _alloc_box: |
mbed_official | 53:c35dab33c427 | 106 | |
mbed_official | 53:c35dab33c427 | 107 | LDR R12,=rt_alloc_box |
mbed_official | 53:c35dab33c427 | 108 | MRS R3,IPSR |
mbed_official | 53:c35dab33c427 | 109 | LSLS R3,#24 |
mbed_official | 53:c35dab33c427 | 110 | IT NE |
mbed_official | 53:c35dab33c427 | 111 | BXNE R12 |
mbed_official | 53:c35dab33c427 | 112 | MRS R3,CONTROL |
mbed_official | 53:c35dab33c427 | 113 | LSLS R3,#31 |
mbed_official | 53:c35dab33c427 | 114 | IT EQ |
mbed_official | 53:c35dab33c427 | 115 | BXEQ R12 |
mbed_official | 53:c35dab33c427 | 116 | SVC 0 |
mbed_official | 53:c35dab33c427 | 117 | BX LR |
mbed_official | 53:c35dab33c427 | 118 | |
mbed_official | 53:c35dab33c427 | 119 | |
mbed_official | 53:c35dab33c427 | 120 | /*--------------------------- _free_box -------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 121 | |
mbed_official | 53:c35dab33c427 | 122 | ; int _free_box (void *box_mem, void *box); |
mbed_official | 53:c35dab33c427 | 123 | /* Function wrapper for Unprivileged/Privileged mode. */ |
mbed_official | 53:c35dab33c427 | 124 | |
mbed_official | 53:c35dab33c427 | 125 | PUBLIC _free_box |
mbed_official | 53:c35dab33c427 | 126 | _free_box: |
mbed_official | 53:c35dab33c427 | 127 | |
mbed_official | 53:c35dab33c427 | 128 | LDR R12,=rt_free_box |
mbed_official | 53:c35dab33c427 | 129 | MRS R3,IPSR |
mbed_official | 53:c35dab33c427 | 130 | LSLS R3,#24 |
mbed_official | 53:c35dab33c427 | 131 | IT NE |
mbed_official | 53:c35dab33c427 | 132 | BXNE R12 |
mbed_official | 53:c35dab33c427 | 133 | MRS R3,CONTROL |
mbed_official | 53:c35dab33c427 | 134 | LSLS R3,#31 |
mbed_official | 53:c35dab33c427 | 135 | IT EQ |
mbed_official | 53:c35dab33c427 | 136 | BXEQ R12 |
mbed_official | 53:c35dab33c427 | 137 | SVC 0 |
mbed_official | 53:c35dab33c427 | 138 | BX LR |
mbed_official | 53:c35dab33c427 | 139 | |
mbed_official | 53:c35dab33c427 | 140 | |
mbed_official | 53:c35dab33c427 | 141 | /*-------------------------- SVC_Handler ------------------------------------*/ |
mbed_official | 53:c35dab33c427 | 142 | |
mbed_official | 53:c35dab33c427 | 143 | ; void SVC_Handler (void); |
mbed_official | 53:c35dab33c427 | 144 | |
mbed_official | 53:c35dab33c427 | 145 | PUBLIC SVC_Handler |
mbed_official | 53:c35dab33c427 | 146 | SVC_Handler: |
mbed_official | 53:c35dab33c427 | 147 | |
mbed_official | 53:c35dab33c427 | 148 | MRS R0,PSP /* Read PSP */ |
mbed_official | 53:c35dab33c427 | 149 | LDR R1,[R0,#24] /* Read Saved PC from Stack */ |
mbed_official | 53:c35dab33c427 | 150 | LDRB R1,[R1,#-2] /* Load SVC Number */ |
mbed_official | 53:c35dab33c427 | 151 | CBNZ R1,SVC_User |
mbed_official | 53:c35dab33c427 | 152 | |
mbed_official | 53:c35dab33c427 | 153 | LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */ |
mbed_official | 53:c35dab33c427 | 154 | BLX R12 /* Call SVC Function */ |
mbed_official | 53:c35dab33c427 | 155 | |
mbed_official | 53:c35dab33c427 | 156 | MRS R12,PSP /* Read PSP */ |
mbed_official | 53:c35dab33c427 | 157 | STM R12,{R0-R2} /* Store return values */ |
mbed_official | 53:c35dab33c427 | 158 | |
mbed_official | 53:c35dab33c427 | 159 | LDR R3,=os_tsk |
mbed_official | 53:c35dab33c427 | 160 | LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */ |
mbed_official | 53:c35dab33c427 | 161 | CMP R1,R2 |
mbed_official | 53:c35dab33c427 | 162 | BEQ SVC_Exit /* no task switch */ |
mbed_official | 53:c35dab33c427 | 163 | |
mbed_official | 53:c35dab33c427 | 164 | CBZ R1,SVC_Next /* Runtask deleted? */ |
mbed_official | 53:c35dab33c427 | 165 | STMDB R12!,{R4-R11} /* Save Old context */ |
mbed_official | 53:c35dab33c427 | 166 | STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */ |
mbed_official | 53:c35dab33c427 | 167 | |
mbed_official | 53:c35dab33c427 | 168 | PUSH {R2,R3} |
mbed_official | 53:c35dab33c427 | 169 | BL rt_stk_check /* Check for Stack overflow */ |
mbed_official | 53:c35dab33c427 | 170 | POP {R2,R3} |
mbed_official | 53:c35dab33c427 | 171 | |
mbed_official | 53:c35dab33c427 | 172 | SVC_Next: |
mbed_official | 53:c35dab33c427 | 173 | STR R2,[R3] /* os_tsk.run = os_tsk.new */ |
mbed_official | 53:c35dab33c427 | 174 | |
mbed_official | 53:c35dab33c427 | 175 | LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */ |
mbed_official | 53:c35dab33c427 | 176 | LDMIA R12!,{R4-R11} /* Restore New Context */ |
mbed_official | 53:c35dab33c427 | 177 | MSR PSP,R12 /* Write PSP */ |
mbed_official | 53:c35dab33c427 | 178 | |
mbed_official | 53:c35dab33c427 | 179 | SVC_Exit: |
mbed_official | 53:c35dab33c427 | 180 | MVN LR,#~0xFFFFFFFD /* set EXC_RETURN value */ |
mbed_official | 53:c35dab33c427 | 181 | BX LR |
mbed_official | 53:c35dab33c427 | 182 | |
mbed_official | 53:c35dab33c427 | 183 | /*------------------- User SVC ------------------------------*/ |
mbed_official | 53:c35dab33c427 | 184 | |
mbed_official | 53:c35dab33c427 | 185 | SVC_User: |
mbed_official | 53:c35dab33c427 | 186 | PUSH {R4,LR} /* Save Registers */ |
mbed_official | 53:c35dab33c427 | 187 | LDR R2,=SVC_Count |
mbed_official | 53:c35dab33c427 | 188 | LDR R2,[R2] |
mbed_official | 53:c35dab33c427 | 189 | CMP R1,R2 |
mbed_official | 53:c35dab33c427 | 190 | BHI SVC_Done /* Overflow */ |
mbed_official | 53:c35dab33c427 | 191 | |
mbed_official | 53:c35dab33c427 | 192 | LDR R4,=SVC_Table-4 |
mbed_official | 53:c35dab33c427 | 193 | LDR R4,[R4,R1,LSL #2] /* Load SVC Function Address */ |
mbed_official | 53:c35dab33c427 | 194 | |
mbed_official | 53:c35dab33c427 | 195 | LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */ |
mbed_official | 53:c35dab33c427 | 196 | BLX R4 /* Call SVC Function */ |
mbed_official | 53:c35dab33c427 | 197 | |
mbed_official | 53:c35dab33c427 | 198 | MRS R12,PSP |
mbed_official | 53:c35dab33c427 | 199 | STM R12,{R0-R3} /* Function return values */ |
mbed_official | 53:c35dab33c427 | 200 | SVC_Done: |
mbed_official | 53:c35dab33c427 | 201 | POP {R4,PC} /* RETI */ |
mbed_official | 53:c35dab33c427 | 202 | |
mbed_official | 53:c35dab33c427 | 203 | |
mbed_official | 53:c35dab33c427 | 204 | /*-------------------------- PendSV_Handler ---------------------------------*/ |
mbed_official | 53:c35dab33c427 | 205 | |
mbed_official | 53:c35dab33c427 | 206 | ; void PendSV_Handler (void); |
mbed_official | 53:c35dab33c427 | 207 | |
mbed_official | 53:c35dab33c427 | 208 | PUBLIC PendSV_Handler |
mbed_official | 53:c35dab33c427 | 209 | PendSV_Handler: |
mbed_official | 53:c35dab33c427 | 210 | |
mbed_official | 53:c35dab33c427 | 211 | BL rt_pop_req |
mbed_official | 53:c35dab33c427 | 212 | |
mbed_official | 53:c35dab33c427 | 213 | Sys_Switch: |
mbed_official | 53:c35dab33c427 | 214 | LDR R3,=os_tsk |
mbed_official | 53:c35dab33c427 | 215 | LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */ |
mbed_official | 53:c35dab33c427 | 216 | CMP R1,R2 |
mbed_official | 53:c35dab33c427 | 217 | BEQ Sys_Exit |
mbed_official | 53:c35dab33c427 | 218 | |
mbed_official | 53:c35dab33c427 | 219 | MRS R12,PSP /* Read PSP */ |
mbed_official | 53:c35dab33c427 | 220 | STMDB R12!,{R4-R11} /* Save Old context */ |
mbed_official | 53:c35dab33c427 | 221 | STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */ |
mbed_official | 53:c35dab33c427 | 222 | |
mbed_official | 53:c35dab33c427 | 223 | PUSH {R2,R3} |
mbed_official | 53:c35dab33c427 | 224 | BL rt_stk_check /* Check for Stack overflow */ |
mbed_official | 53:c35dab33c427 | 225 | POP {R2,R3} |
mbed_official | 53:c35dab33c427 | 226 | |
mbed_official | 53:c35dab33c427 | 227 | STR R2,[R3] /* os_tsk.run = os_tsk.new */ |
mbed_official | 53:c35dab33c427 | 228 | |
mbed_official | 53:c35dab33c427 | 229 | LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */ |
mbed_official | 53:c35dab33c427 | 230 | LDMIA R12!,{R4-R11} /* Restore New Context */ |
mbed_official | 53:c35dab33c427 | 231 | MSR PSP,R12 /* Write PSP */ |
mbed_official | 53:c35dab33c427 | 232 | |
mbed_official | 53:c35dab33c427 | 233 | Sys_Exit: |
mbed_official | 53:c35dab33c427 | 234 | MVN LR,#~0xFFFFFFFD /* set EXC_RETURN value */ |
mbed_official | 53:c35dab33c427 | 235 | BX LR /* Return to Thread Mode */ |
mbed_official | 53:c35dab33c427 | 236 | |
mbed_official | 53:c35dab33c427 | 237 | |
mbed_official | 53:c35dab33c427 | 238 | /*-------------------------- SysTick_Handler --------------------------------*/ |
mbed_official | 53:c35dab33c427 | 239 | |
mbed_official | 53:c35dab33c427 | 240 | ; void SysTick_Handler (void); |
mbed_official | 53:c35dab33c427 | 241 | |
mbed_official | 53:c35dab33c427 | 242 | PUBLIC SysTick_Handler |
mbed_official | 53:c35dab33c427 | 243 | SysTick_Handler: |
mbed_official | 53:c35dab33c427 | 244 | |
mbed_official | 53:c35dab33c427 | 245 | BL rt_systick |
mbed_official | 53:c35dab33c427 | 246 | B Sys_Switch |
mbed_official | 53:c35dab33c427 | 247 | |
mbed_official | 53:c35dab33c427 | 248 | |
mbed_official | 53:c35dab33c427 | 249 | /*-------------------------- OS_Tick_Handler --------------------------------*/ |
mbed_official | 53:c35dab33c427 | 250 | |
mbed_official | 53:c35dab33c427 | 251 | ; void OS_Tick_Handler (void); |
mbed_official | 53:c35dab33c427 | 252 | |
mbed_official | 53:c35dab33c427 | 253 | PUBLIC OS_Tick_Handler |
mbed_official | 53:c35dab33c427 | 254 | OS_Tick_Handler: |
mbed_official | 53:c35dab33c427 | 255 | |
mbed_official | 53:c35dab33c427 | 256 | BL os_tick_irqack |
mbed_official | 53:c35dab33c427 | 257 | BL rt_systick |
mbed_official | 53:c35dab33c427 | 258 | B Sys_Switch |
mbed_official | 53:c35dab33c427 | 259 | |
mbed_official | 53:c35dab33c427 | 260 | |
mbed_official | 53:c35dab33c427 | 261 | END |
mbed_official | 53:c35dab33c427 | 262 | |
mbed_official | 53:c35dab33c427 | 263 | /*---------------------------------------------------------------------------- |
mbed_official | 53:c35dab33c427 | 264 | * end of file |
mbed_official | 53:c35dab33c427 | 265 | *---------------------------------------------------------------------------*/ |