mbed library sources. Supersedes mbed-src.
Dependents: Hobbyking_Cheetah_Compact Hobbyking_Cheetah_Compact_DRV8323_14bit Hobbyking_Cheetah_Compact_DRV8323_V51_201907 HKC_MiniCheetah ... more
Fork of mbed-dev by
hal/mbed_sleep_manager.c@181:36facd806e4a, 2018-07-30 (annotated)
- Committer:
- benkatz
- Date:
- Mon Jul 30 20:31:44 2018 +0000
- Revision:
- 181:36facd806e4a
- Parent:
- 174:b96e65c34a4d
going on the robot. fixed a dumb bug in float_to_uint
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
AnnaBridge | 174:b96e65c34a4d | 1 | /* mbed Microcontroller Library |
AnnaBridge | 174:b96e65c34a4d | 2 | * Copyright (c) 2017 ARM Limited |
AnnaBridge | 174:b96e65c34a4d | 3 | * |
AnnaBridge | 174:b96e65c34a4d | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
AnnaBridge | 174:b96e65c34a4d | 5 | * you may not use this file except in compliance with the License. |
AnnaBridge | 174:b96e65c34a4d | 6 | * You may obtain a copy of the License at |
AnnaBridge | 174:b96e65c34a4d | 7 | * |
AnnaBridge | 174:b96e65c34a4d | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
AnnaBridge | 174:b96e65c34a4d | 9 | * |
AnnaBridge | 174:b96e65c34a4d | 10 | * Unless required by applicable law or agreed to in writing, software |
AnnaBridge | 174:b96e65c34a4d | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
AnnaBridge | 174:b96e65c34a4d | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
AnnaBridge | 174:b96e65c34a4d | 13 | * See the License for the specific language governing permissions and |
AnnaBridge | 174:b96e65c34a4d | 14 | * limitations under the License. |
AnnaBridge | 174:b96e65c34a4d | 15 | */ |
AnnaBridge | 174:b96e65c34a4d | 16 | |
AnnaBridge | 174:b96e65c34a4d | 17 | #include "mbed_sleep.h" |
AnnaBridge | 174:b96e65c34a4d | 18 | #include "mbed_critical.h" |
AnnaBridge | 174:b96e65c34a4d | 19 | #include "sleep_api.h" |
AnnaBridge | 174:b96e65c34a4d | 20 | #include "mbed_error.h" |
AnnaBridge | 174:b96e65c34a4d | 21 | #include <limits.h> |
AnnaBridge | 174:b96e65c34a4d | 22 | |
AnnaBridge | 174:b96e65c34a4d | 23 | #if DEVICE_SLEEP |
AnnaBridge | 174:b96e65c34a4d | 24 | |
AnnaBridge | 174:b96e65c34a4d | 25 | // deep sleep locking counter. A target is allowed to deep sleep if counter == 0 |
AnnaBridge | 174:b96e65c34a4d | 26 | static uint16_t deep_sleep_lock = 0U; |
AnnaBridge | 174:b96e65c34a4d | 27 | |
AnnaBridge | 174:b96e65c34a4d | 28 | void sleep_manager_lock_deep_sleep(void) |
AnnaBridge | 174:b96e65c34a4d | 29 | { |
AnnaBridge | 174:b96e65c34a4d | 30 | core_util_critical_section_enter(); |
AnnaBridge | 174:b96e65c34a4d | 31 | if (deep_sleep_lock == USHRT_MAX) { |
AnnaBridge | 174:b96e65c34a4d | 32 | core_util_critical_section_exit(); |
AnnaBridge | 174:b96e65c34a4d | 33 | error("Deep sleep lock would overflow (> USHRT_MAX)"); |
AnnaBridge | 174:b96e65c34a4d | 34 | } |
AnnaBridge | 174:b96e65c34a4d | 35 | core_util_atomic_incr_u16(&deep_sleep_lock, 1); |
AnnaBridge | 174:b96e65c34a4d | 36 | core_util_critical_section_exit(); |
AnnaBridge | 174:b96e65c34a4d | 37 | } |
AnnaBridge | 174:b96e65c34a4d | 38 | |
AnnaBridge | 174:b96e65c34a4d | 39 | void sleep_manager_unlock_deep_sleep(void) |
AnnaBridge | 174:b96e65c34a4d | 40 | { |
AnnaBridge | 174:b96e65c34a4d | 41 | core_util_critical_section_enter(); |
AnnaBridge | 174:b96e65c34a4d | 42 | if (deep_sleep_lock == 0) { |
AnnaBridge | 174:b96e65c34a4d | 43 | core_util_critical_section_exit(); |
AnnaBridge | 174:b96e65c34a4d | 44 | error("Deep sleep lock would underflow (< 0)"); |
AnnaBridge | 174:b96e65c34a4d | 45 | } |
AnnaBridge | 174:b96e65c34a4d | 46 | core_util_atomic_decr_u16(&deep_sleep_lock, 1); |
AnnaBridge | 174:b96e65c34a4d | 47 | core_util_critical_section_exit(); |
AnnaBridge | 174:b96e65c34a4d | 48 | } |
AnnaBridge | 174:b96e65c34a4d | 49 | |
AnnaBridge | 174:b96e65c34a4d | 50 | bool sleep_manager_can_deep_sleep(void) |
AnnaBridge | 174:b96e65c34a4d | 51 | { |
AnnaBridge | 174:b96e65c34a4d | 52 | return deep_sleep_lock == 0 ? true : false; |
AnnaBridge | 174:b96e65c34a4d | 53 | } |
AnnaBridge | 174:b96e65c34a4d | 54 | |
AnnaBridge | 174:b96e65c34a4d | 55 | void sleep_manager_sleep_auto(void) |
AnnaBridge | 174:b96e65c34a4d | 56 | { |
AnnaBridge | 174:b96e65c34a4d | 57 | core_util_critical_section_enter(); |
AnnaBridge | 174:b96e65c34a4d | 58 | // debug profile should keep debuggers attached, no deep sleep allowed |
AnnaBridge | 174:b96e65c34a4d | 59 | #ifdef MBED_DEBUG |
AnnaBridge | 174:b96e65c34a4d | 60 | hal_sleep(); |
AnnaBridge | 174:b96e65c34a4d | 61 | #else |
AnnaBridge | 174:b96e65c34a4d | 62 | if (sleep_manager_can_deep_sleep()) { |
AnnaBridge | 174:b96e65c34a4d | 63 | hal_deepsleep(); |
AnnaBridge | 174:b96e65c34a4d | 64 | } else { |
AnnaBridge | 174:b96e65c34a4d | 65 | hal_sleep(); |
AnnaBridge | 174:b96e65c34a4d | 66 | } |
AnnaBridge | 174:b96e65c34a4d | 67 | #endif |
AnnaBridge | 174:b96e65c34a4d | 68 | core_util_critical_section_exit(); |
AnnaBridge | 174:b96e65c34a4d | 69 | } |
AnnaBridge | 174:b96e65c34a4d | 70 | |
AnnaBridge | 174:b96e65c34a4d | 71 | #else |
AnnaBridge | 174:b96e65c34a4d | 72 | |
AnnaBridge | 174:b96e65c34a4d | 73 | // locking is valid only if DEVICE_SLEEP is defined |
AnnaBridge | 174:b96e65c34a4d | 74 | // we provide empty implementation |
AnnaBridge | 174:b96e65c34a4d | 75 | |
AnnaBridge | 174:b96e65c34a4d | 76 | void sleep_manager_lock_deep_sleep(void) |
AnnaBridge | 174:b96e65c34a4d | 77 | { |
AnnaBridge | 174:b96e65c34a4d | 78 | |
AnnaBridge | 174:b96e65c34a4d | 79 | } |
AnnaBridge | 174:b96e65c34a4d | 80 | |
AnnaBridge | 174:b96e65c34a4d | 81 | void sleep_manager_unlock_deep_sleep(void) |
AnnaBridge | 174:b96e65c34a4d | 82 | { |
AnnaBridge | 174:b96e65c34a4d | 83 | |
AnnaBridge | 174:b96e65c34a4d | 84 | } |
AnnaBridge | 174:b96e65c34a4d | 85 | |
AnnaBridge | 174:b96e65c34a4d | 86 | bool sleep_manager_can_deep_sleep(void) |
AnnaBridge | 174:b96e65c34a4d | 87 | { |
AnnaBridge | 174:b96e65c34a4d | 88 | // no sleep implemented |
AnnaBridge | 174:b96e65c34a4d | 89 | return false; |
AnnaBridge | 174:b96e65c34a4d | 90 | } |
AnnaBridge | 174:b96e65c34a4d | 91 | |
AnnaBridge | 174:b96e65c34a4d | 92 | #endif |