Magnificent7 / Hackathon

Includes library modifications to allow access to AIN_4 (AIN_0 / 5)

mbd_os/hal/common/mbed_critical.c@0:eafc3fd41f75, 2016-09-20 (annotated)

Committer:
bryantaylor
Date:
Tue Sep 20 21:26:12 2016 +0000
Revision:
0:eafc3fd41f75
hackathon

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bryantaylor 0:eafc3fd41f75 1 /*
bryantaylor 0:eafc3fd41f75 2 * Copyright (c) 2015-2016, ARM Limited, All Rights Reserved
bryantaylor 0:eafc3fd41f75 3 * SPDX-License-Identifier: Apache-2.0
bryantaylor 0:eafc3fd41f75 4 *
bryantaylor 0:eafc3fd41f75 5 * Licensed under the Apache License, Version 2.0 (the "License"); you may
bryantaylor 0:eafc3fd41f75 6 * not use this file except in compliance with the License.
bryantaylor 0:eafc3fd41f75 7 * You may obtain a copy of the License at
bryantaylor 0:eafc3fd41f75 8 *
bryantaylor 0:eafc3fd41f75 9 * http://www.apache.org/licenses/LICENSE-2.0
bryantaylor 0:eafc3fd41f75 10 *
bryantaylor 0:eafc3fd41f75 11 * Unless required by applicable law or agreed to in writing, software
bryantaylor 0:eafc3fd41f75 12 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
bryantaylor 0:eafc3fd41f75 13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bryantaylor 0:eafc3fd41f75 14 * See the License for the specific language governing permissions and
bryantaylor 0:eafc3fd41f75 15 * limitations under the License.
bryantaylor 0:eafc3fd41f75 16 */
bryantaylor 0:eafc3fd41f75 17
bryantaylor 0:eafc3fd41f75 18 #include "critical.h"
bryantaylor 0:eafc3fd41f75 19
bryantaylor 0:eafc3fd41f75 20 #include "cmsis.h"
bryantaylor 0:eafc3fd41f75 21 #include "mbed_assert.h"
bryantaylor 0:eafc3fd41f75 22
bryantaylor 0:eafc3fd41f75 23 #define EXCLUSIVE_ACCESS (!defined (__CORTEX_M0) && !defined (__CORTEX_M0PLUS))
bryantaylor 0:eafc3fd41f75 24
bryantaylor 0:eafc3fd41f75 25 static volatile uint32_t interrupt_enable_counter = 0;
bryantaylor 0:eafc3fd41f75 26 static volatile bool critical_interrupts_disabled = false;
bryantaylor 0:eafc3fd41f75 27
bryantaylor 0:eafc3fd41f75 28 bool core_util_are_interrupts_enabled(void)
bryantaylor 0:eafc3fd41f75 29 {
bryantaylor 0:eafc3fd41f75 30 #if defined(__CORTEX_A9)
bryantaylor 0:eafc3fd41f75 31 return ((__get_CPSR() & 0x80) == 0);
bryantaylor 0:eafc3fd41f75 32 #else
bryantaylor 0:eafc3fd41f75 33 return ((__get_PRIMASK() & 0x1) == 0);
bryantaylor 0:eafc3fd41f75 34 #endif
bryantaylor 0:eafc3fd41f75 35 }
bryantaylor 0:eafc3fd41f75 36
bryantaylor 0:eafc3fd41f75 37 void core_util_critical_section_enter(void)
bryantaylor 0:eafc3fd41f75 38 {
bryantaylor 0:eafc3fd41f75 39 bool interrupts_disabled = !core_util_are_interrupts_enabled();
bryantaylor 0:eafc3fd41f75 40 __disable_irq();
bryantaylor 0:eafc3fd41f75 41
bryantaylor 0:eafc3fd41f75 42 /* Save the interrupt disabled state as it was prior to any nested critical section lock use */
bryantaylor 0:eafc3fd41f75 43 if (!interrupt_enable_counter) {
bryantaylor 0:eafc3fd41f75 44 critical_interrupts_disabled = interrupts_disabled;
bryantaylor 0:eafc3fd41f75 45 }
bryantaylor 0:eafc3fd41f75 46
bryantaylor 0:eafc3fd41f75 47 /* If the interrupt_enable_counter overflows or we are in a nested critical section and interrupts
bryantaylor 0:eafc3fd41f75 48 are enabled, then something has gone badly wrong thus assert an error.
bryantaylor 0:eafc3fd41f75 49 */
bryantaylor 0:eafc3fd41f75 50 MBED_ASSERT(interrupt_enable_counter < UINT32_MAX);
bryantaylor 0:eafc3fd41f75 51 // FIXME
bryantaylor 0:eafc3fd41f75 52 #ifndef FEATURE_UVISOR
bryantaylor 0:eafc3fd41f75 53 if (interrupt_enable_counter > 0) {
bryantaylor 0:eafc3fd41f75 54 MBED_ASSERT(interrupts_disabled);
bryantaylor 0:eafc3fd41f75 55 }
bryantaylor 0:eafc3fd41f75 56 #else
bryantaylor 0:eafc3fd41f75 57 #warning "core_util_critical_section_enter needs fixing to work from unprivileged code"
bryantaylor 0:eafc3fd41f75 58 #endif /* FEATURE_UVISOR */
bryantaylor 0:eafc3fd41f75 59 interrupt_enable_counter++;
bryantaylor 0:eafc3fd41f75 60 }
bryantaylor 0:eafc3fd41f75 61
bryantaylor 0:eafc3fd41f75 62 void core_util_critical_section_exit(void)
bryantaylor 0:eafc3fd41f75 63 {
bryantaylor 0:eafc3fd41f75 64 /* If critical_section_enter has not previously been called, do nothing */
bryantaylor 0:eafc3fd41f75 65 if (interrupt_enable_counter) {
bryantaylor 0:eafc3fd41f75 66
bryantaylor 0:eafc3fd41f75 67 // FIXME
bryantaylor 0:eafc3fd41f75 68 #ifndef FEATURE_UVISOR
bryantaylor 0:eafc3fd41f75 69 bool interrupts_disabled = !core_util_are_interrupts_enabled(); /* get the current interrupt disabled state */
bryantaylor 0:eafc3fd41f75 70
bryantaylor 0:eafc3fd41f75 71 MBED_ASSERT(interrupts_disabled); /* Interrupts must be disabled on invoking an exit from a critical section */
bryantaylor 0:eafc3fd41f75 72 #else
bryantaylor 0:eafc3fd41f75 73 #warning "core_util_critical_section_exit needs fixing to work from unprivileged code"
bryantaylor 0:eafc3fd41f75 74 #endif /* FEATURE_UVISOR */
bryantaylor 0:eafc3fd41f75 75
bryantaylor 0:eafc3fd41f75 76 interrupt_enable_counter--;
bryantaylor 0:eafc3fd41f75 77
bryantaylor 0:eafc3fd41f75 78 /* Only re-enable interrupts if we are exiting the last of the nested critical sections and
bryantaylor 0:eafc3fd41f75 79 interrupts were enabled on entry to the first critical section.
bryantaylor 0:eafc3fd41f75 80 */
bryantaylor 0:eafc3fd41f75 81 if (!interrupt_enable_counter && !critical_interrupts_disabled) {
bryantaylor 0:eafc3fd41f75 82 __enable_irq();
bryantaylor 0:eafc3fd41f75 83 }
bryantaylor 0:eafc3fd41f75 84 }
bryantaylor 0:eafc3fd41f75 85 }
bryantaylor 0:eafc3fd41f75 86
bryantaylor 0:eafc3fd41f75 87 #if EXCLUSIVE_ACCESS
bryantaylor 0:eafc3fd41f75 88
bryantaylor 0:eafc3fd41f75 89 /* Supress __ldrex and __strex deprecated warnings - "#3731-D: intrinsic is deprecated" */
bryantaylor 0:eafc3fd41f75 90 #if defined (__CC_ARM)
bryantaylor 0:eafc3fd41f75 91 #pragma diag_suppress 3731
bryantaylor 0:eafc3fd41f75 92 #endif
bryantaylor 0:eafc3fd41f75 93
bryantaylor 0:eafc3fd41f75 94 bool core_util_atomic_cas_u8(uint8_t *ptr, uint8_t *expectedCurrentValue, uint8_t desiredValue)
bryantaylor 0:eafc3fd41f75 95 {
bryantaylor 0:eafc3fd41f75 96 uint8_t currentValue = __LDREXB((volatile uint8_t*)ptr);
bryantaylor 0:eafc3fd41f75 97 if (currentValue != *expectedCurrentValue) {
bryantaylor 0:eafc3fd41f75 98 *expectedCurrentValue = currentValue;
bryantaylor 0:eafc3fd41f75 99 __CLREX();
bryantaylor 0:eafc3fd41f75 100 return false;
bryantaylor 0:eafc3fd41f75 101 }
bryantaylor 0:eafc3fd41f75 102
bryantaylor 0:eafc3fd41f75 103 return !__STREXB(desiredValue, (volatile uint8_t*)ptr);
bryantaylor 0:eafc3fd41f75 104 }
bryantaylor 0:eafc3fd41f75 105
bryantaylor 0:eafc3fd41f75 106 bool core_util_atomic_cas_u16(uint16_t *ptr, uint16_t *expectedCurrentValue, uint16_t desiredValue)
bryantaylor 0:eafc3fd41f75 107 {
bryantaylor 0:eafc3fd41f75 108 uint16_t currentValue = __LDREXH((volatile uint16_t*)ptr);
bryantaylor 0:eafc3fd41f75 109 if (currentValue != *expectedCurrentValue) {
bryantaylor 0:eafc3fd41f75 110 *expectedCurrentValue = currentValue;
bryantaylor 0:eafc3fd41f75 111 __CLREX();
bryantaylor 0:eafc3fd41f75 112 return false;
bryantaylor 0:eafc3fd41f75 113 }
bryantaylor 0:eafc3fd41f75 114
bryantaylor 0:eafc3fd41f75 115 return !__STREXH(desiredValue, (volatile uint16_t*)ptr);
bryantaylor 0:eafc3fd41f75 116 }
bryantaylor 0:eafc3fd41f75 117
bryantaylor 0:eafc3fd41f75 118
bryantaylor 0:eafc3fd41f75 119 bool core_util_atomic_cas_u32(uint32_t *ptr, uint32_t *expectedCurrentValue, uint32_t desiredValue)
bryantaylor 0:eafc3fd41f75 120 {
bryantaylor 0:eafc3fd41f75 121 uint32_t currentValue = __LDREXW((volatile uint32_t*)ptr);
bryantaylor 0:eafc3fd41f75 122 if (currentValue != *expectedCurrentValue) {
bryantaylor 0:eafc3fd41f75 123 *expectedCurrentValue = currentValue;
bryantaylor 0:eafc3fd41f75 124 __CLREX();
bryantaylor 0:eafc3fd41f75 125 return false;
bryantaylor 0:eafc3fd41f75 126 }
bryantaylor 0:eafc3fd41f75 127
bryantaylor 0:eafc3fd41f75 128 return !__STREXW(desiredValue, (volatile uint32_t*)ptr);
bryantaylor 0:eafc3fd41f75 129 }
bryantaylor 0:eafc3fd41f75 130
bryantaylor 0:eafc3fd41f75 131 uint8_t core_util_atomic_incr_u8(uint8_t *valuePtr, uint8_t delta)
bryantaylor 0:eafc3fd41f75 132 {
bryantaylor 0:eafc3fd41f75 133 uint8_t newValue;
bryantaylor 0:eafc3fd41f75 134 do {
bryantaylor 0:eafc3fd41f75 135 newValue = __LDREXB((volatile uint8_t*)valuePtr) + delta;
bryantaylor 0:eafc3fd41f75 136 } while (__STREXB(newValue, (volatile uint8_t*)valuePtr));
bryantaylor 0:eafc3fd41f75 137 return newValue;
bryantaylor 0:eafc3fd41f75 138 }
bryantaylor 0:eafc3fd41f75 139
bryantaylor 0:eafc3fd41f75 140 uint16_t core_util_atomic_incr_u16(uint16_t *valuePtr, uint16_t delta)
bryantaylor 0:eafc3fd41f75 141 {
bryantaylor 0:eafc3fd41f75 142 uint16_t newValue;
bryantaylor 0:eafc3fd41f75 143 do {
bryantaylor 0:eafc3fd41f75 144 newValue = __LDREXH((volatile uint16_t*)valuePtr) + delta;
bryantaylor 0:eafc3fd41f75 145 } while (__STREXH(newValue, (volatile uint16_t*)valuePtr));
bryantaylor 0:eafc3fd41f75 146 return newValue;
bryantaylor 0:eafc3fd41f75 147 }
bryantaylor 0:eafc3fd41f75 148
bryantaylor 0:eafc3fd41f75 149 uint32_t core_util_atomic_incr_u32(uint32_t *valuePtr, uint32_t delta)
bryantaylor 0:eafc3fd41f75 150 {
bryantaylor 0:eafc3fd41f75 151 uint32_t newValue;
bryantaylor 0:eafc3fd41f75 152 do {
bryantaylor 0:eafc3fd41f75 153 newValue = __LDREXW((volatile uint32_t*)valuePtr) + delta;
bryantaylor 0:eafc3fd41f75 154 } while (__STREXW(newValue, (volatile uint32_t*)valuePtr));
bryantaylor 0:eafc3fd41f75 155 return newValue;
bryantaylor 0:eafc3fd41f75 156 }
bryantaylor 0:eafc3fd41f75 157
bryantaylor 0:eafc3fd41f75 158
bryantaylor 0:eafc3fd41f75 159 uint8_t core_util_atomic_decr_u8(uint8_t *valuePtr, uint8_t delta)
bryantaylor 0:eafc3fd41f75 160 {
bryantaylor 0:eafc3fd41f75 161 uint8_t newValue;
bryantaylor 0:eafc3fd41f75 162 do {
bryantaylor 0:eafc3fd41f75 163 newValue = __LDREXB((volatile uint8_t*)valuePtr) - delta;
bryantaylor 0:eafc3fd41f75 164 } while (__STREXB(newValue, (volatile uint8_t*)valuePtr));
bryantaylor 0:eafc3fd41f75 165 return newValue;
bryantaylor 0:eafc3fd41f75 166 }
bryantaylor 0:eafc3fd41f75 167
bryantaylor 0:eafc3fd41f75 168 uint16_t core_util_atomic_decr_u16(uint16_t *valuePtr, uint16_t delta)
bryantaylor 0:eafc3fd41f75 169 {
bryantaylor 0:eafc3fd41f75 170 uint16_t newValue;
bryantaylor 0:eafc3fd41f75 171 do {
bryantaylor 0:eafc3fd41f75 172 newValue = __LDREXH((volatile uint16_t*)valuePtr) - delta;
bryantaylor 0:eafc3fd41f75 173 } while (__STREXH(newValue, (volatile uint16_t*)valuePtr));
bryantaylor 0:eafc3fd41f75 174 return newValue;
bryantaylor 0:eafc3fd41f75 175 }
bryantaylor 0:eafc3fd41f75 176
bryantaylor 0:eafc3fd41f75 177 uint32_t core_util_atomic_decr_u32(uint32_t *valuePtr, uint32_t delta)
bryantaylor 0:eafc3fd41f75 178 {
bryantaylor 0:eafc3fd41f75 179 uint32_t newValue;
bryantaylor 0:eafc3fd41f75 180 do {
bryantaylor 0:eafc3fd41f75 181 newValue = __LDREXW((volatile uint32_t*)valuePtr) - delta;
bryantaylor 0:eafc3fd41f75 182 } while (__STREXW(newValue, (volatile uint32_t*)valuePtr));
bryantaylor 0:eafc3fd41f75 183 return newValue;
bryantaylor 0:eafc3fd41f75 184 }
bryantaylor 0:eafc3fd41f75 185
bryantaylor 0:eafc3fd41f75 186 #else
bryantaylor 0:eafc3fd41f75 187
bryantaylor 0:eafc3fd41f75 188 bool core_util_atomic_cas_u8(uint8_t *ptr, uint8_t *expectedCurrentValue, uint8_t desiredValue)
bryantaylor 0:eafc3fd41f75 189 {
bryantaylor 0:eafc3fd41f75 190 bool success;
bryantaylor 0:eafc3fd41f75 191 uint8_t currentValue;
bryantaylor 0:eafc3fd41f75 192 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 193 currentValue = *ptr;
bryantaylor 0:eafc3fd41f75 194 if (currentValue == *expectedCurrentValue) {
bryantaylor 0:eafc3fd41f75 195 *ptr = desiredValue;
bryantaylor 0:eafc3fd41f75 196 success = true;
bryantaylor 0:eafc3fd41f75 197 } else {
bryantaylor 0:eafc3fd41f75 198 *expectedCurrentValue = currentValue;
bryantaylor 0:eafc3fd41f75 199 success = false;
bryantaylor 0:eafc3fd41f75 200 }
bryantaylor 0:eafc3fd41f75 201 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 202 return success;
bryantaylor 0:eafc3fd41f75 203 }
bryantaylor 0:eafc3fd41f75 204
bryantaylor 0:eafc3fd41f75 205 bool core_util_atomic_cas_u16(uint16_t *ptr, uint16_t *expectedCurrentValue, uint16_t desiredValue)
bryantaylor 0:eafc3fd41f75 206 {
bryantaylor 0:eafc3fd41f75 207 bool success;
bryantaylor 0:eafc3fd41f75 208 uint16_t currentValue;
bryantaylor 0:eafc3fd41f75 209 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 210 currentValue = *ptr;
bryantaylor 0:eafc3fd41f75 211 if (currentValue == *expectedCurrentValue) {
bryantaylor 0:eafc3fd41f75 212 *ptr = desiredValue;
bryantaylor 0:eafc3fd41f75 213 success = true;
bryantaylor 0:eafc3fd41f75 214 } else {
bryantaylor 0:eafc3fd41f75 215 *expectedCurrentValue = currentValue;
bryantaylor 0:eafc3fd41f75 216 success = false;
bryantaylor 0:eafc3fd41f75 217 }
bryantaylor 0:eafc3fd41f75 218 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 219 return success;
bryantaylor 0:eafc3fd41f75 220 }
bryantaylor 0:eafc3fd41f75 221
bryantaylor 0:eafc3fd41f75 222
bryantaylor 0:eafc3fd41f75 223 bool core_util_atomic_cas_u32(uint32_t *ptr, uint32_t *expectedCurrentValue, uint32_t desiredValue)
bryantaylor 0:eafc3fd41f75 224 {
bryantaylor 0:eafc3fd41f75 225 bool success;
bryantaylor 0:eafc3fd41f75 226 uint32_t currentValue;
bryantaylor 0:eafc3fd41f75 227 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 228 currentValue = *ptr;
bryantaylor 0:eafc3fd41f75 229 if (currentValue == *expectedCurrentValue) {
bryantaylor 0:eafc3fd41f75 230 *ptr = desiredValue;
bryantaylor 0:eafc3fd41f75 231 success = true;
bryantaylor 0:eafc3fd41f75 232 } else {
bryantaylor 0:eafc3fd41f75 233 *expectedCurrentValue = currentValue;
bryantaylor 0:eafc3fd41f75 234 success = false;
bryantaylor 0:eafc3fd41f75 235 }
bryantaylor 0:eafc3fd41f75 236 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 237 return success;
bryantaylor 0:eafc3fd41f75 238 }
bryantaylor 0:eafc3fd41f75 239
bryantaylor 0:eafc3fd41f75 240
bryantaylor 0:eafc3fd41f75 241 uint8_t core_util_atomic_incr_u8(uint8_t *valuePtr, uint8_t delta)
bryantaylor 0:eafc3fd41f75 242 {
bryantaylor 0:eafc3fd41f75 243 uint8_t newValue;
bryantaylor 0:eafc3fd41f75 244 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 245 newValue = *valuePtr + delta;
bryantaylor 0:eafc3fd41f75 246 *valuePtr = newValue;
bryantaylor 0:eafc3fd41f75 247 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 248 return newValue;
bryantaylor 0:eafc3fd41f75 249 }
bryantaylor 0:eafc3fd41f75 250
bryantaylor 0:eafc3fd41f75 251 uint16_t core_util_atomic_incr_u16(uint16_t *valuePtr, uint16_t delta)
bryantaylor 0:eafc3fd41f75 252 {
bryantaylor 0:eafc3fd41f75 253 uint16_t newValue;
bryantaylor 0:eafc3fd41f75 254 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 255 newValue = *valuePtr + delta;
bryantaylor 0:eafc3fd41f75 256 *valuePtr = newValue;
bryantaylor 0:eafc3fd41f75 257 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 258 return newValue;
bryantaylor 0:eafc3fd41f75 259 }
bryantaylor 0:eafc3fd41f75 260
bryantaylor 0:eafc3fd41f75 261 uint32_t core_util_atomic_incr_u32(uint32_t *valuePtr, uint32_t delta)
bryantaylor 0:eafc3fd41f75 262 {
bryantaylor 0:eafc3fd41f75 263 uint32_t newValue;
bryantaylor 0:eafc3fd41f75 264 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 265 newValue = *valuePtr + delta;
bryantaylor 0:eafc3fd41f75 266 *valuePtr = newValue;
bryantaylor 0:eafc3fd41f75 267 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 268 return newValue;
bryantaylor 0:eafc3fd41f75 269 }
bryantaylor 0:eafc3fd41f75 270
bryantaylor 0:eafc3fd41f75 271
bryantaylor 0:eafc3fd41f75 272 uint8_t core_util_atomic_decr_u8(uint8_t *valuePtr, uint8_t delta)
bryantaylor 0:eafc3fd41f75 273 {
bryantaylor 0:eafc3fd41f75 274 uint8_t newValue;
bryantaylor 0:eafc3fd41f75 275 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 276 newValue = *valuePtr - delta;
bryantaylor 0:eafc3fd41f75 277 *valuePtr = newValue;
bryantaylor 0:eafc3fd41f75 278 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 279 return newValue;
bryantaylor 0:eafc3fd41f75 280 }
bryantaylor 0:eafc3fd41f75 281
bryantaylor 0:eafc3fd41f75 282 uint16_t core_util_atomic_decr_u16(uint16_t *valuePtr, uint16_t delta)
bryantaylor 0:eafc3fd41f75 283 {
bryantaylor 0:eafc3fd41f75 284 uint16_t newValue;
bryantaylor 0:eafc3fd41f75 285 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 286 newValue = *valuePtr - delta;
bryantaylor 0:eafc3fd41f75 287 *valuePtr = newValue;
bryantaylor 0:eafc3fd41f75 288 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 289 return newValue;
bryantaylor 0:eafc3fd41f75 290 }
bryantaylor 0:eafc3fd41f75 291
bryantaylor 0:eafc3fd41f75 292 uint32_t core_util_atomic_decr_u32(uint32_t *valuePtr, uint32_t delta)
bryantaylor 0:eafc3fd41f75 293 {
bryantaylor 0:eafc3fd41f75 294 uint32_t newValue;
bryantaylor 0:eafc3fd41f75 295 core_util_critical_section_enter();
bryantaylor 0:eafc3fd41f75 296 newValue = *valuePtr - delta;
bryantaylor 0:eafc3fd41f75 297 *valuePtr = newValue;
bryantaylor 0:eafc3fd41f75 298 core_util_critical_section_exit();
bryantaylor 0:eafc3fd41f75 299 return newValue;
bryantaylor 0:eafc3fd41f75 300 }
bryantaylor 0:eafc3fd41f75 301
bryantaylor 0:eafc3fd41f75 302 #endif
bryantaylor 0:eafc3fd41f75 303
bryantaylor 0:eafc3fd41f75 304
bryantaylor 0:eafc3fd41f75 305 bool core_util_atomic_cas_ptr(void **ptr, void **expectedCurrentValue, void *desiredValue) {
bryantaylor 0:eafc3fd41f75 306 return core_util_atomic_cas_u32(
bryantaylor 0:eafc3fd41f75 307 (uint32_t *)ptr,
bryantaylor 0:eafc3fd41f75 308 (uint32_t *)expectedCurrentValue,
bryantaylor 0:eafc3fd41f75 309 (uint32_t)desiredValue);
bryantaylor 0:eafc3fd41f75 310 }
bryantaylor 0:eafc3fd41f75 311
bryantaylor 0:eafc3fd41f75 312 void *core_util_atomic_incr_ptr(void **valuePtr, ptrdiff_t delta) {
bryantaylor 0:eafc3fd41f75 313 return (void *)core_util_atomic_incr_u32((uint32_t *)valuePtr, (uint32_t)delta);
bryantaylor 0:eafc3fd41f75 314 }
bryantaylor 0:eafc3fd41f75 315
bryantaylor 0:eafc3fd41f75 316 void *core_util_atomic_decr_ptr(void **valuePtr, ptrdiff_t delta) {
bryantaylor 0:eafc3fd41f75 317 return (void *)core_util_atomic_decr_u32((uint32_t *)valuePtr, (uint32_t)delta);
bryantaylor 0:eafc3fd41f75 318 }
bryantaylor 0:eafc3fd41f75 319