Containers (STL-compatible) StateMachines MessageBus and more for Embedded Systems. See www.etlcpp.com
c/ecl_timer.c@0:b47c2a7920c2, 2018-03-16 (annotated)
- Committer:
- bobbery
- Date:
- Fri Mar 16 16:34:18 2018 +0000
- Revision:
- 0:b47c2a7920c2
Works after using gcc_generic undef CAPACITY and replacing nullptr by std::nullptr
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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bobbery | 0:b47c2a7920c2 | 1 | /****************************************************************************** |
bobbery | 0:b47c2a7920c2 | 2 | The MIT License(MIT) |
bobbery | 0:b47c2a7920c2 | 3 | |
bobbery | 0:b47c2a7920c2 | 4 | Embedded Template Library. |
bobbery | 0:b47c2a7920c2 | 5 | https://github.com/ETLCPP/etl |
bobbery | 0:b47c2a7920c2 | 6 | https://www.etlcpp.com |
bobbery | 0:b47c2a7920c2 | 7 | |
bobbery | 0:b47c2a7920c2 | 8 | Copyright(c) 2017 jwellbelove |
bobbery | 0:b47c2a7920c2 | 9 | |
bobbery | 0:b47c2a7920c2 | 10 | Permission is hereby granted, free of charge, to any person obtaining a copy |
bobbery | 0:b47c2a7920c2 | 11 | of this software and associated documentation files(the "Software"), to deal |
bobbery | 0:b47c2a7920c2 | 12 | in the Software without restriction, including without limitation the rights |
bobbery | 0:b47c2a7920c2 | 13 | to use, copy, modify, merge, publish, distribute, sublicense, and / or sell |
bobbery | 0:b47c2a7920c2 | 14 | copies of the Software, and to permit persons to whom the Software is |
bobbery | 0:b47c2a7920c2 | 15 | furnished to do so, subject to the following conditions : |
bobbery | 0:b47c2a7920c2 | 16 | |
bobbery | 0:b47c2a7920c2 | 17 | The above copyright notice and this permission notice shall be included in all |
bobbery | 0:b47c2a7920c2 | 18 | copies or substantial portions of the Software. |
bobbery | 0:b47c2a7920c2 | 19 | |
bobbery | 0:b47c2a7920c2 | 20 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
bobbery | 0:b47c2a7920c2 | 21 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
bobbery | 0:b47c2a7920c2 | 22 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE |
bobbery | 0:b47c2a7920c2 | 23 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
bobbery | 0:b47c2a7920c2 | 24 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
bobbery | 0:b47c2a7920c2 | 25 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
bobbery | 0:b47c2a7920c2 | 26 | SOFTWARE. |
bobbery | 0:b47c2a7920c2 | 27 | ******************************************************************************/ |
bobbery | 0:b47c2a7920c2 | 28 | |
bobbery | 0:b47c2a7920c2 | 29 | #include <stdint.h> |
bobbery | 0:b47c2a7920c2 | 30 | #include <assert.h> |
bobbery | 0:b47c2a7920c2 | 31 | |
bobbery | 0:b47c2a7920c2 | 32 | #include "ecl_timer.h" |
bobbery | 0:b47c2a7920c2 | 33 | |
bobbery | 0:b47c2a7920c2 | 34 | //***************************************************************************** |
bobbery | 0:b47c2a7920c2 | 35 | // Internal timer list |
bobbery | 0:b47c2a7920c2 | 36 | //***************************************************************************** |
bobbery | 0:b47c2a7920c2 | 37 | |
bobbery | 0:b47c2a7920c2 | 38 | static ecl_timer_id_t head; |
bobbery | 0:b47c2a7920c2 | 39 | static ecl_timer_id_t tail; |
bobbery | 0:b47c2a7920c2 | 40 | static ecl_timer_id_t current; |
bobbery | 0:b47c2a7920c2 | 41 | |
bobbery | 0:b47c2a7920c2 | 42 | static struct ecl_timer_config* ptimers; |
bobbery | 0:b47c2a7920c2 | 43 | |
bobbery | 0:b47c2a7920c2 | 44 | static void ecl_timer_list_init(struct ecl_timer_config* const ptimers_) |
bobbery | 0:b47c2a7920c2 | 45 | { |
bobbery | 0:b47c2a7920c2 | 46 | ptimers = ptimers_; |
bobbery | 0:b47c2a7920c2 | 47 | head = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 48 | tail = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 49 | current = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 50 | } |
bobbery | 0:b47c2a7920c2 | 51 | |
bobbery | 0:b47c2a7920c2 | 52 | //******************************* |
bobbery | 0:b47c2a7920c2 | 53 | static struct ecl_timer_config* ecl_timer_list_front() |
bobbery | 0:b47c2a7920c2 | 54 | { |
bobbery | 0:b47c2a7920c2 | 55 | return &ptimers[head]; |
bobbery | 0:b47c2a7920c2 | 56 | } |
bobbery | 0:b47c2a7920c2 | 57 | |
bobbery | 0:b47c2a7920c2 | 58 | //******************************* |
bobbery | 0:b47c2a7920c2 | 59 | static ecl_timer_id_t ecl_timer_list_begin() |
bobbery | 0:b47c2a7920c2 | 60 | { |
bobbery | 0:b47c2a7920c2 | 61 | current = head; |
bobbery | 0:b47c2a7920c2 | 62 | return current; |
bobbery | 0:b47c2a7920c2 | 63 | } |
bobbery | 0:b47c2a7920c2 | 64 | |
bobbery | 0:b47c2a7920c2 | 65 | //******************************* |
bobbery | 0:b47c2a7920c2 | 66 | static ecl_timer_id_t ecl_timer_list_next(ecl_timer_id_t last) |
bobbery | 0:b47c2a7920c2 | 67 | { |
bobbery | 0:b47c2a7920c2 | 68 | current = ptimers[last].next; |
bobbery | 0:b47c2a7920c2 | 69 | return current; |
bobbery | 0:b47c2a7920c2 | 70 | } |
bobbery | 0:b47c2a7920c2 | 71 | |
bobbery | 0:b47c2a7920c2 | 72 | //******************************* |
bobbery | 0:b47c2a7920c2 | 73 | static int ecl_timer_list_empty() |
bobbery | 0:b47c2a7920c2 | 74 | { |
bobbery | 0:b47c2a7920c2 | 75 | return head == ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 76 | } |
bobbery | 0:b47c2a7920c2 | 77 | |
bobbery | 0:b47c2a7920c2 | 78 | //******************************* |
bobbery | 0:b47c2a7920c2 | 79 | // Inserts the timer at the correct delta position |
bobbery | 0:b47c2a7920c2 | 80 | //******************************* |
bobbery | 0:b47c2a7920c2 | 81 | static void ecl_timer_list_insert(ecl_timer_id_t id_) |
bobbery | 0:b47c2a7920c2 | 82 | { |
bobbery | 0:b47c2a7920c2 | 83 | struct ecl_timer_config* ptimer = &ptimers[id_]; |
bobbery | 0:b47c2a7920c2 | 84 | |
bobbery | 0:b47c2a7920c2 | 85 | if (head == ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 86 | { |
bobbery | 0:b47c2a7920c2 | 87 | // No entries yet. |
bobbery | 0:b47c2a7920c2 | 88 | head = id_; |
bobbery | 0:b47c2a7920c2 | 89 | tail = id_; |
bobbery | 0:b47c2a7920c2 | 90 | ptimer->previous = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 91 | ptimer->next = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 92 | } |
bobbery | 0:b47c2a7920c2 | 93 | else |
bobbery | 0:b47c2a7920c2 | 94 | { |
bobbery | 0:b47c2a7920c2 | 95 | // We already have entries. |
bobbery | 0:b47c2a7920c2 | 96 | ecl_timer_id_t test_id = ecl_timer_list_begin(); |
bobbery | 0:b47c2a7920c2 | 97 | |
bobbery | 0:b47c2a7920c2 | 98 | while (test_id != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 99 | { |
bobbery | 0:b47c2a7920c2 | 100 | struct ecl_timer_config* ptest = &ptimers[test_id]; |
bobbery | 0:b47c2a7920c2 | 101 | |
bobbery | 0:b47c2a7920c2 | 102 | // Find the correct place to insert. |
bobbery | 0:b47c2a7920c2 | 103 | if (ptimer->delta <= ptest->delta) |
bobbery | 0:b47c2a7920c2 | 104 | { |
bobbery | 0:b47c2a7920c2 | 105 | if (ptest->id == head) |
bobbery | 0:b47c2a7920c2 | 106 | { |
bobbery | 0:b47c2a7920c2 | 107 | head = ptimer->id; |
bobbery | 0:b47c2a7920c2 | 108 | } |
bobbery | 0:b47c2a7920c2 | 109 | |
bobbery | 0:b47c2a7920c2 | 110 | // Insert before ptest-> |
bobbery | 0:b47c2a7920c2 | 111 | ptimer->previous = ptest->previous; |
bobbery | 0:b47c2a7920c2 | 112 | ptest->previous = ptimer->id; |
bobbery | 0:b47c2a7920c2 | 113 | ptimer->next = ptest->id; |
bobbery | 0:b47c2a7920c2 | 114 | |
bobbery | 0:b47c2a7920c2 | 115 | // Adjust the next delta to compensate. |
bobbery | 0:b47c2a7920c2 | 116 | ptest->delta -= ptimer->delta; |
bobbery | 0:b47c2a7920c2 | 117 | |
bobbery | 0:b47c2a7920c2 | 118 | if (ptimer->previous != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 119 | { |
bobbery | 0:b47c2a7920c2 | 120 | ptimers[ptimer->previous].next = ptimer->id; |
bobbery | 0:b47c2a7920c2 | 121 | } |
bobbery | 0:b47c2a7920c2 | 122 | break; |
bobbery | 0:b47c2a7920c2 | 123 | } |
bobbery | 0:b47c2a7920c2 | 124 | else |
bobbery | 0:b47c2a7920c2 | 125 | { |
bobbery | 0:b47c2a7920c2 | 126 | ptimer->delta -= ptest->delta; |
bobbery | 0:b47c2a7920c2 | 127 | } |
bobbery | 0:b47c2a7920c2 | 128 | |
bobbery | 0:b47c2a7920c2 | 129 | test_id = ecl_timer_list_next(test_id); |
bobbery | 0:b47c2a7920c2 | 130 | } |
bobbery | 0:b47c2a7920c2 | 131 | |
bobbery | 0:b47c2a7920c2 | 132 | // Reached the end? |
bobbery | 0:b47c2a7920c2 | 133 | if (test_id == ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 134 | { |
bobbery | 0:b47c2a7920c2 | 135 | // Tag on to the tail. |
bobbery | 0:b47c2a7920c2 | 136 | ptimers[tail].next = ptimer->id; |
bobbery | 0:b47c2a7920c2 | 137 | ptimer->previous = tail; |
bobbery | 0:b47c2a7920c2 | 138 | ptimer->next = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 139 | tail = ptimer->id; |
bobbery | 0:b47c2a7920c2 | 140 | } |
bobbery | 0:b47c2a7920c2 | 141 | } |
bobbery | 0:b47c2a7920c2 | 142 | } |
bobbery | 0:b47c2a7920c2 | 143 | |
bobbery | 0:b47c2a7920c2 | 144 | //******************************* |
bobbery | 0:b47c2a7920c2 | 145 | static void ecl_timer_list_remove(ecl_timer_id_t id_, int has_expired) |
bobbery | 0:b47c2a7920c2 | 146 | { |
bobbery | 0:b47c2a7920c2 | 147 | struct ecl_timer_config* ptimer = &ptimers[id_]; |
bobbery | 0:b47c2a7920c2 | 148 | |
bobbery | 0:b47c2a7920c2 | 149 | if (head == id_) |
bobbery | 0:b47c2a7920c2 | 150 | { |
bobbery | 0:b47c2a7920c2 | 151 | head = ptimer->next; |
bobbery | 0:b47c2a7920c2 | 152 | } |
bobbery | 0:b47c2a7920c2 | 153 | else |
bobbery | 0:b47c2a7920c2 | 154 | { |
bobbery | 0:b47c2a7920c2 | 155 | ptimers[ptimer->previous].next = ptimer->next; |
bobbery | 0:b47c2a7920c2 | 156 | } |
bobbery | 0:b47c2a7920c2 | 157 | |
bobbery | 0:b47c2a7920c2 | 158 | if (tail == id_) |
bobbery | 0:b47c2a7920c2 | 159 | { |
bobbery | 0:b47c2a7920c2 | 160 | tail = ptimer->previous; |
bobbery | 0:b47c2a7920c2 | 161 | } |
bobbery | 0:b47c2a7920c2 | 162 | else |
bobbery | 0:b47c2a7920c2 | 163 | { |
bobbery | 0:b47c2a7920c2 | 164 | ptimers[ptimer->next].previous = ptimer->previous; |
bobbery | 0:b47c2a7920c2 | 165 | } |
bobbery | 0:b47c2a7920c2 | 166 | |
bobbery | 0:b47c2a7920c2 | 167 | if (!has_expired) |
bobbery | 0:b47c2a7920c2 | 168 | { |
bobbery | 0:b47c2a7920c2 | 169 | // Adjust the next delta. |
bobbery | 0:b47c2a7920c2 | 170 | if (ptimer->next != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 171 | { |
bobbery | 0:b47c2a7920c2 | 172 | ptimers[ptimer->next].delta += ptimer->delta; |
bobbery | 0:b47c2a7920c2 | 173 | } |
bobbery | 0:b47c2a7920c2 | 174 | } |
bobbery | 0:b47c2a7920c2 | 175 | |
bobbery | 0:b47c2a7920c2 | 176 | ptimer->previous = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 177 | ptimer->next = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 178 | ptimer->delta = ECL_TIMER_INACTIVE; |
bobbery | 0:b47c2a7920c2 | 179 | } |
bobbery | 0:b47c2a7920c2 | 180 | |
bobbery | 0:b47c2a7920c2 | 181 | //******************************* |
bobbery | 0:b47c2a7920c2 | 182 | static void ecl_timer_list_clear() |
bobbery | 0:b47c2a7920c2 | 183 | { |
bobbery | 0:b47c2a7920c2 | 184 | ecl_timer_id_t id = ecl_timer_list_begin(); |
bobbery | 0:b47c2a7920c2 | 185 | |
bobbery | 0:b47c2a7920c2 | 186 | while (id != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 187 | { |
bobbery | 0:b47c2a7920c2 | 188 | struct ecl_timer_config* ptimer = &ptimers[id]; |
bobbery | 0:b47c2a7920c2 | 189 | id = ecl_timer_list_next(id); |
bobbery | 0:b47c2a7920c2 | 190 | ptimer->next = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 191 | } |
bobbery | 0:b47c2a7920c2 | 192 | |
bobbery | 0:b47c2a7920c2 | 193 | head = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 194 | tail = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 195 | current = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 196 | } |
bobbery | 0:b47c2a7920c2 | 197 | |
bobbery | 0:b47c2a7920c2 | 198 | //***************************************************************************** |
bobbery | 0:b47c2a7920c2 | 199 | // Timer Framework |
bobbery | 0:b47c2a7920c2 | 200 | //***************************************************************************** |
bobbery | 0:b47c2a7920c2 | 201 | |
bobbery | 0:b47c2a7920c2 | 202 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 203 | /// Default initialisation. |
bobbery | 0:b47c2a7920c2 | 204 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 205 | void ecl_timer_data_init_default(struct ecl_timer_config* ptimer_data_) |
bobbery | 0:b47c2a7920c2 | 206 | { |
bobbery | 0:b47c2a7920c2 | 207 | assert(ptimer_data_ != 0); |
bobbery | 0:b47c2a7920c2 | 208 | |
bobbery | 0:b47c2a7920c2 | 209 | ptimer_data_->pcallback = 0; |
bobbery | 0:b47c2a7920c2 | 210 | ptimer_data_->period = 0; |
bobbery | 0:b47c2a7920c2 | 211 | ptimer_data_->delta = ECL_TIMER_INACTIVE; |
bobbery | 0:b47c2a7920c2 | 212 | ptimer_data_->id = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 213 | ptimer_data_->previous = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 214 | ptimer_data_->next = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 215 | ptimer_data_->repeating = ECL_TIMER_REPEATING; |
bobbery | 0:b47c2a7920c2 | 216 | } |
bobbery | 0:b47c2a7920c2 | 217 | |
bobbery | 0:b47c2a7920c2 | 218 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 219 | /// Parameterised initialisation. |
bobbery | 0:b47c2a7920c2 | 220 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 221 | void ecl_timer_data_init(struct ecl_timer_config* ptimer_data_, |
bobbery | 0:b47c2a7920c2 | 222 | ecl_timer_id_t id_, |
bobbery | 0:b47c2a7920c2 | 223 | void (*pcallback_)(), |
bobbery | 0:b47c2a7920c2 | 224 | ecl_timer_time_t period_, |
bobbery | 0:b47c2a7920c2 | 225 | ecl_timer_mode_t repeating_) |
bobbery | 0:b47c2a7920c2 | 226 | { |
bobbery | 0:b47c2a7920c2 | 227 | assert(ptimer_data_ != 0); |
bobbery | 0:b47c2a7920c2 | 228 | assert(pcallback_ != 0); |
bobbery | 0:b47c2a7920c2 | 229 | |
bobbery | 0:b47c2a7920c2 | 230 | ptimer_data_->pcallback = pcallback_; |
bobbery | 0:b47c2a7920c2 | 231 | ptimer_data_->period = period_; |
bobbery | 0:b47c2a7920c2 | 232 | ptimer_data_->delta = ECL_TIMER_INACTIVE; |
bobbery | 0:b47c2a7920c2 | 233 | ptimer_data_->id = id_; |
bobbery | 0:b47c2a7920c2 | 234 | ptimer_data_->previous = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 235 | ptimer_data_->next = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 236 | ptimer_data_->repeating = repeating_; |
bobbery | 0:b47c2a7920c2 | 237 | } |
bobbery | 0:b47c2a7920c2 | 238 | |
bobbery | 0:b47c2a7920c2 | 239 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 240 | /// Returns true if the timer is active. |
bobbery | 0:b47c2a7920c2 | 241 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 242 | ecl_timer_result_t ecl_timer_is_active(struct ecl_timer_config* ptimer_data_) |
bobbery | 0:b47c2a7920c2 | 243 | { |
bobbery | 0:b47c2a7920c2 | 244 | assert(ptimer_data_ != 0); |
bobbery | 0:b47c2a7920c2 | 245 | |
bobbery | 0:b47c2a7920c2 | 246 | return (ptimer_data_->delta != ECL_TIMER_INACTIVE) ? ECL_TIMER_PASS : ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 247 | } |
bobbery | 0:b47c2a7920c2 | 248 | |
bobbery | 0:b47c2a7920c2 | 249 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 250 | /// Sets the timer to the inactive state. |
bobbery | 0:b47c2a7920c2 | 251 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 252 | void ecl_set_timer_inactive(struct ecl_timer_config* ptimer_data_) |
bobbery | 0:b47c2a7920c2 | 253 | { |
bobbery | 0:b47c2a7920c2 | 254 | assert(ptimer_data_ != 0); |
bobbery | 0:b47c2a7920c2 | 255 | |
bobbery | 0:b47c2a7920c2 | 256 | ptimer_data_->delta = ECL_TIMER_INACTIVE; |
bobbery | 0:b47c2a7920c2 | 257 | } |
bobbery | 0:b47c2a7920c2 | 258 | |
bobbery | 0:b47c2a7920c2 | 259 | struct ecl_time_config |
bobbery | 0:b47c2a7920c2 | 260 | { |
bobbery | 0:b47c2a7920c2 | 261 | struct ecl_timer_config* ptimers; |
bobbery | 0:b47c2a7920c2 | 262 | uint_least8_t max_timers; |
bobbery | 0:b47c2a7920c2 | 263 | volatile ecl_timer_enable_t enabled; |
bobbery | 0:b47c2a7920c2 | 264 | ECL_TIMER_TIMER_SEMAPHORE process_semaphore; |
bobbery | 0:b47c2a7920c2 | 265 | volatile uint_least8_t registered_timers; |
bobbery | 0:b47c2a7920c2 | 266 | }; |
bobbery | 0:b47c2a7920c2 | 267 | |
bobbery | 0:b47c2a7920c2 | 268 | static struct ecl_time_config ecl; |
bobbery | 0:b47c2a7920c2 | 269 | |
bobbery | 0:b47c2a7920c2 | 270 | void ecl_timer_init(struct ecl_timer_config* ptimers_, uint_least8_t max_timers_) |
bobbery | 0:b47c2a7920c2 | 271 | { |
bobbery | 0:b47c2a7920c2 | 272 | assert(ptimers_ != 0); |
bobbery | 0:b47c2a7920c2 | 273 | |
bobbery | 0:b47c2a7920c2 | 274 | ecl.ptimers = ptimers_; |
bobbery | 0:b47c2a7920c2 | 275 | ecl.max_timers = max_timers_; |
bobbery | 0:b47c2a7920c2 | 276 | ecl.enabled = 0; |
bobbery | 0:b47c2a7920c2 | 277 | ecl.process_semaphore = 0; |
bobbery | 0:b47c2a7920c2 | 278 | ecl.registered_timers = 0; |
bobbery | 0:b47c2a7920c2 | 279 | |
bobbery | 0:b47c2a7920c2 | 280 | int i; |
bobbery | 0:b47c2a7920c2 | 281 | for (i = 0; i < max_timers_; ++i) |
bobbery | 0:b47c2a7920c2 | 282 | { |
bobbery | 0:b47c2a7920c2 | 283 | ecl_timer_data_init_default(&ecl.ptimers[i]); |
bobbery | 0:b47c2a7920c2 | 284 | } |
bobbery | 0:b47c2a7920c2 | 285 | |
bobbery | 0:b47c2a7920c2 | 286 | ecl_timer_list_init(ecl.ptimers); |
bobbery | 0:b47c2a7920c2 | 287 | } |
bobbery | 0:b47c2a7920c2 | 288 | |
bobbery | 0:b47c2a7920c2 | 289 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 290 | /// Register a ptimer-> |
bobbery | 0:b47c2a7920c2 | 291 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 292 | ecl_timer_id_t ecl_timer_register(void (*pcallback_)(), |
bobbery | 0:b47c2a7920c2 | 293 | ecl_timer_time_t period_, |
bobbery | 0:b47c2a7920c2 | 294 | ecl_timer_mode_t repeating_) |
bobbery | 0:b47c2a7920c2 | 295 | { |
bobbery | 0:b47c2a7920c2 | 296 | assert(pcallback_ != 0); |
bobbery | 0:b47c2a7920c2 | 297 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 298 | |
bobbery | 0:b47c2a7920c2 | 299 | ecl_timer_id_t id = ECL_TIMER_NO_TIMER; |
bobbery | 0:b47c2a7920c2 | 300 | |
bobbery | 0:b47c2a7920c2 | 301 | ECL_TIMER_DISABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 302 | |
bobbery | 0:b47c2a7920c2 | 303 | int is_space = (ecl.registered_timers < ecl.max_timers); |
bobbery | 0:b47c2a7920c2 | 304 | |
bobbery | 0:b47c2a7920c2 | 305 | if (is_space) |
bobbery | 0:b47c2a7920c2 | 306 | { |
bobbery | 0:b47c2a7920c2 | 307 | // Search for the free space. |
bobbery | 0:b47c2a7920c2 | 308 | uint_least8_t i; |
bobbery | 0:b47c2a7920c2 | 309 | for (i = 0; i < ecl.max_timers; ++i) |
bobbery | 0:b47c2a7920c2 | 310 | { |
bobbery | 0:b47c2a7920c2 | 311 | struct ecl_timer_config* ptimer = &ecl.ptimers[i]; |
bobbery | 0:b47c2a7920c2 | 312 | |
bobbery | 0:b47c2a7920c2 | 313 | if (ptimer->id == ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 314 | { |
bobbery | 0:b47c2a7920c2 | 315 | // Create in-place. |
bobbery | 0:b47c2a7920c2 | 316 | ecl_timer_data_init(ptimer, i, pcallback_, period_, repeating_); |
bobbery | 0:b47c2a7920c2 | 317 | ++ecl.registered_timers; |
bobbery | 0:b47c2a7920c2 | 318 | id = i; |
bobbery | 0:b47c2a7920c2 | 319 | break; |
bobbery | 0:b47c2a7920c2 | 320 | } |
bobbery | 0:b47c2a7920c2 | 321 | } |
bobbery | 0:b47c2a7920c2 | 322 | } |
bobbery | 0:b47c2a7920c2 | 323 | |
bobbery | 0:b47c2a7920c2 | 324 | ECL_TIMER_ENABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 325 | |
bobbery | 0:b47c2a7920c2 | 326 | return id; |
bobbery | 0:b47c2a7920c2 | 327 | } |
bobbery | 0:b47c2a7920c2 | 328 | |
bobbery | 0:b47c2a7920c2 | 329 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 330 | /// Unregister a ptimer-> |
bobbery | 0:b47c2a7920c2 | 331 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 332 | ecl_timer_result_t ecl_timer_unregister(ecl_timer_id_t id_) |
bobbery | 0:b47c2a7920c2 | 333 | { |
bobbery | 0:b47c2a7920c2 | 334 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 335 | |
bobbery | 0:b47c2a7920c2 | 336 | ecl_timer_result_t result = ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 337 | |
bobbery | 0:b47c2a7920c2 | 338 | if (id_ != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 339 | { |
bobbery | 0:b47c2a7920c2 | 340 | ECL_TIMER_DISABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 341 | |
bobbery | 0:b47c2a7920c2 | 342 | struct ecl_timer_config* ptimer = &ecl.ptimers[id_]; |
bobbery | 0:b47c2a7920c2 | 343 | |
bobbery | 0:b47c2a7920c2 | 344 | if (ptimer->id != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 345 | { |
bobbery | 0:b47c2a7920c2 | 346 | if (ecl_timer_is_active(ptimer)) |
bobbery | 0:b47c2a7920c2 | 347 | { |
bobbery | 0:b47c2a7920c2 | 348 | ecl_timer_list_remove(ptimer->id, 0); |
bobbery | 0:b47c2a7920c2 | 349 | |
bobbery | 0:b47c2a7920c2 | 350 | // Reset in-place. |
bobbery | 0:b47c2a7920c2 | 351 | ecl_timer_data_init_default(ptimer); |
bobbery | 0:b47c2a7920c2 | 352 | --ecl.registered_timers; |
bobbery | 0:b47c2a7920c2 | 353 | |
bobbery | 0:b47c2a7920c2 | 354 | result = ECL_TIMER_PASS; |
bobbery | 0:b47c2a7920c2 | 355 | } |
bobbery | 0:b47c2a7920c2 | 356 | } |
bobbery | 0:b47c2a7920c2 | 357 | |
bobbery | 0:b47c2a7920c2 | 358 | ECL_TIMER_ENABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 359 | } |
bobbery | 0:b47c2a7920c2 | 360 | |
bobbery | 0:b47c2a7920c2 | 361 | return result; |
bobbery | 0:b47c2a7920c2 | 362 | } |
bobbery | 0:b47c2a7920c2 | 363 | |
bobbery | 0:b47c2a7920c2 | 364 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 365 | /// Enable/disable the ptimer-> |
bobbery | 0:b47c2a7920c2 | 366 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 367 | void ecl_timer_enable(ecl_timer_enable_t state_) |
bobbery | 0:b47c2a7920c2 | 368 | { |
bobbery | 0:b47c2a7920c2 | 369 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 370 | assert((state_ == ECL_TIMER_ENABLED) || (state_ == ECL_TIMER_DISABLED)); |
bobbery | 0:b47c2a7920c2 | 371 | |
bobbery | 0:b47c2a7920c2 | 372 | ecl.enabled = state_; |
bobbery | 0:b47c2a7920c2 | 373 | } |
bobbery | 0:b47c2a7920c2 | 374 | |
bobbery | 0:b47c2a7920c2 | 375 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 376 | /// Get the enable/disable state. |
bobbery | 0:b47c2a7920c2 | 377 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 378 | ecl_timer_result_t ecl_timer_is_running() |
bobbery | 0:b47c2a7920c2 | 379 | { |
bobbery | 0:b47c2a7920c2 | 380 | return ecl.enabled; |
bobbery | 0:b47c2a7920c2 | 381 | } |
bobbery | 0:b47c2a7920c2 | 382 | |
bobbery | 0:b47c2a7920c2 | 383 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 384 | /// Clears the timer of data. |
bobbery | 0:b47c2a7920c2 | 385 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 386 | void ecl_timer_clear() |
bobbery | 0:b47c2a7920c2 | 387 | { |
bobbery | 0:b47c2a7920c2 | 388 | ECL_TIMER_DISABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 389 | |
bobbery | 0:b47c2a7920c2 | 390 | ecl_timer_list_clear(); |
bobbery | 0:b47c2a7920c2 | 391 | |
bobbery | 0:b47c2a7920c2 | 392 | int i; |
bobbery | 0:b47c2a7920c2 | 393 | for (i = 0; i < ecl.max_timers; ++i) |
bobbery | 0:b47c2a7920c2 | 394 | { |
bobbery | 0:b47c2a7920c2 | 395 | ecl_timer_data_init_default(&ecl.ptimers[i]); |
bobbery | 0:b47c2a7920c2 | 396 | } |
bobbery | 0:b47c2a7920c2 | 397 | |
bobbery | 0:b47c2a7920c2 | 398 | ecl.registered_timers = 0; |
bobbery | 0:b47c2a7920c2 | 399 | |
bobbery | 0:b47c2a7920c2 | 400 | ECL_TIMER_ENABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 401 | } |
bobbery | 0:b47c2a7920c2 | 402 | |
bobbery | 0:b47c2a7920c2 | 403 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 404 | // Called by the timer service to indicate the |
bobbery | 0:b47c2a7920c2 | 405 | // amount of time that has elapsed since the last successful call to 'tick'. |
bobbery | 0:b47c2a7920c2 | 406 | // Returns true if the tick was processed, false if not. |
bobbery | 0:b47c2a7920c2 | 407 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 408 | ecl_timer_result_t ecl_timer_tick(uint32_t count) |
bobbery | 0:b47c2a7920c2 | 409 | { |
bobbery | 0:b47c2a7920c2 | 410 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 411 | |
bobbery | 0:b47c2a7920c2 | 412 | if (ecl.enabled) |
bobbery | 0:b47c2a7920c2 | 413 | { |
bobbery | 0:b47c2a7920c2 | 414 | if (ECL_TIMER_PROCESSING_ENABLED(ecl.process_semaphore)) |
bobbery | 0:b47c2a7920c2 | 415 | { |
bobbery | 0:b47c2a7920c2 | 416 | // We have something to do? |
bobbery | 0:b47c2a7920c2 | 417 | int has_active = !ecl_timer_list_empty(); |
bobbery | 0:b47c2a7920c2 | 418 | |
bobbery | 0:b47c2a7920c2 | 419 | if (has_active) |
bobbery | 0:b47c2a7920c2 | 420 | { |
bobbery | 0:b47c2a7920c2 | 421 | while (has_active && (count >= ecl_timer_list_front()->delta)) |
bobbery | 0:b47c2a7920c2 | 422 | { |
bobbery | 0:b47c2a7920c2 | 423 | struct ecl_timer_config* ptimer = ecl_timer_list_front(); |
bobbery | 0:b47c2a7920c2 | 424 | |
bobbery | 0:b47c2a7920c2 | 425 | count -= ptimer->delta; |
bobbery | 0:b47c2a7920c2 | 426 | |
bobbery | 0:b47c2a7920c2 | 427 | ecl_timer_list_remove(ptimer->id, 1); |
bobbery | 0:b47c2a7920c2 | 428 | |
bobbery | 0:b47c2a7920c2 | 429 | if (ptimer->repeating) |
bobbery | 0:b47c2a7920c2 | 430 | { |
bobbery | 0:b47c2a7920c2 | 431 | // Reinsert the ptimer-> |
bobbery | 0:b47c2a7920c2 | 432 | ptimer->delta = ptimer->period; |
bobbery | 0:b47c2a7920c2 | 433 | ecl_timer_list_insert(ptimer->id); |
bobbery | 0:b47c2a7920c2 | 434 | } |
bobbery | 0:b47c2a7920c2 | 435 | |
bobbery | 0:b47c2a7920c2 | 436 | if (ptimer->pcallback != 0) |
bobbery | 0:b47c2a7920c2 | 437 | { |
bobbery | 0:b47c2a7920c2 | 438 | // Call the C callback. |
bobbery | 0:b47c2a7920c2 | 439 | (ptimer->pcallback)(); |
bobbery | 0:b47c2a7920c2 | 440 | } |
bobbery | 0:b47c2a7920c2 | 441 | |
bobbery | 0:b47c2a7920c2 | 442 | has_active = !ecl_timer_list_empty(); |
bobbery | 0:b47c2a7920c2 | 443 | } |
bobbery | 0:b47c2a7920c2 | 444 | |
bobbery | 0:b47c2a7920c2 | 445 | if (has_active) |
bobbery | 0:b47c2a7920c2 | 446 | { |
bobbery | 0:b47c2a7920c2 | 447 | // Subtract any remainder from the next due timeout. |
bobbery | 0:b47c2a7920c2 | 448 | ecl_timer_list_front()->delta -= count; |
bobbery | 0:b47c2a7920c2 | 449 | } |
bobbery | 0:b47c2a7920c2 | 450 | } |
bobbery | 0:b47c2a7920c2 | 451 | |
bobbery | 0:b47c2a7920c2 | 452 | return ECL_TIMER_PASS; |
bobbery | 0:b47c2a7920c2 | 453 | } |
bobbery | 0:b47c2a7920c2 | 454 | } |
bobbery | 0:b47c2a7920c2 | 455 | |
bobbery | 0:b47c2a7920c2 | 456 | return ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 457 | } |
bobbery | 0:b47c2a7920c2 | 458 | |
bobbery | 0:b47c2a7920c2 | 459 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 460 | /// Starts a timer |
bobbery | 0:b47c2a7920c2 | 461 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 462 | ecl_timer_result_t ecl_timer_start(ecl_timer_id_t id_, ecl_timer_start_t immediate_) |
bobbery | 0:b47c2a7920c2 | 463 | { |
bobbery | 0:b47c2a7920c2 | 464 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 465 | |
bobbery | 0:b47c2a7920c2 | 466 | ECL_TIMER_DISABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 467 | |
bobbery | 0:b47c2a7920c2 | 468 | ecl_timer_result_t result = ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 469 | |
bobbery | 0:b47c2a7920c2 | 470 | // Valid timer id? |
bobbery | 0:b47c2a7920c2 | 471 | if (id_ != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 472 | { |
bobbery | 0:b47c2a7920c2 | 473 | struct ecl_timer_config* ptimer = &ecl.ptimers[id_]; |
bobbery | 0:b47c2a7920c2 | 474 | |
bobbery | 0:b47c2a7920c2 | 475 | // Registered timer? |
bobbery | 0:b47c2a7920c2 | 476 | if (ptimer->id != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 477 | { |
bobbery | 0:b47c2a7920c2 | 478 | // Has a valid period. |
bobbery | 0:b47c2a7920c2 | 479 | if (ptimer->period != ECL_TIMER_INACTIVE) |
bobbery | 0:b47c2a7920c2 | 480 | { |
bobbery | 0:b47c2a7920c2 | 481 | if (ecl_timer_is_active(ptimer)) |
bobbery | 0:b47c2a7920c2 | 482 | { |
bobbery | 0:b47c2a7920c2 | 483 | ecl_timer_list_remove(ptimer->id, 0); |
bobbery | 0:b47c2a7920c2 | 484 | } |
bobbery | 0:b47c2a7920c2 | 485 | |
bobbery | 0:b47c2a7920c2 | 486 | ptimer->delta = immediate_ ? 0 : ptimer->period; |
bobbery | 0:b47c2a7920c2 | 487 | ecl_timer_list_insert(ptimer->id); |
bobbery | 0:b47c2a7920c2 | 488 | |
bobbery | 0:b47c2a7920c2 | 489 | result = ECL_TIMER_PASS; |
bobbery | 0:b47c2a7920c2 | 490 | } |
bobbery | 0:b47c2a7920c2 | 491 | } |
bobbery | 0:b47c2a7920c2 | 492 | } |
bobbery | 0:b47c2a7920c2 | 493 | |
bobbery | 0:b47c2a7920c2 | 494 | ECL_TIMER_ENABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 495 | |
bobbery | 0:b47c2a7920c2 | 496 | return result; |
bobbery | 0:b47c2a7920c2 | 497 | } |
bobbery | 0:b47c2a7920c2 | 498 | |
bobbery | 0:b47c2a7920c2 | 499 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 500 | /// Stops a timer |
bobbery | 0:b47c2a7920c2 | 501 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 502 | ecl_timer_result_t ecl_timer_stop(ecl_timer_id_t id_) |
bobbery | 0:b47c2a7920c2 | 503 | { |
bobbery | 0:b47c2a7920c2 | 504 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 505 | |
bobbery | 0:b47c2a7920c2 | 506 | ECL_TIMER_DISABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 507 | |
bobbery | 0:b47c2a7920c2 | 508 | ecl_timer_result_t result = ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 509 | |
bobbery | 0:b47c2a7920c2 | 510 | // Valid timer id? |
bobbery | 0:b47c2a7920c2 | 511 | if (id_ != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 512 | { |
bobbery | 0:b47c2a7920c2 | 513 | struct ecl_timer_config* ptimer = &ecl.ptimers[id_]; |
bobbery | 0:b47c2a7920c2 | 514 | |
bobbery | 0:b47c2a7920c2 | 515 | // Registered timer? |
bobbery | 0:b47c2a7920c2 | 516 | if (ptimer->id != ECL_TIMER_NO_TIMER) |
bobbery | 0:b47c2a7920c2 | 517 | { |
bobbery | 0:b47c2a7920c2 | 518 | if (ecl_timer_is_active(ptimer)) |
bobbery | 0:b47c2a7920c2 | 519 | { |
bobbery | 0:b47c2a7920c2 | 520 | ecl_timer_list_remove(ptimer->id, 0); |
bobbery | 0:b47c2a7920c2 | 521 | result = ECL_TIMER_PASS; |
bobbery | 0:b47c2a7920c2 | 522 | } |
bobbery | 0:b47c2a7920c2 | 523 | } |
bobbery | 0:b47c2a7920c2 | 524 | } |
bobbery | 0:b47c2a7920c2 | 525 | |
bobbery | 0:b47c2a7920c2 | 526 | ECL_TIMER_ENABLE_PROCESSING(ecl.process_semaphore); |
bobbery | 0:b47c2a7920c2 | 527 | |
bobbery | 0:b47c2a7920c2 | 528 | return result; |
bobbery | 0:b47c2a7920c2 | 529 | } |
bobbery | 0:b47c2a7920c2 | 530 | |
bobbery | 0:b47c2a7920c2 | 531 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 532 | /// Sets a timer's period. |
bobbery | 0:b47c2a7920c2 | 533 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 534 | ecl_timer_result_t ecl_timer_set_period(ecl_timer_id_t id_, ecl_timer_time_t period_) |
bobbery | 0:b47c2a7920c2 | 535 | { |
bobbery | 0:b47c2a7920c2 | 536 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 537 | |
bobbery | 0:b47c2a7920c2 | 538 | if (ecl_timer_stop(id_)) |
bobbery | 0:b47c2a7920c2 | 539 | { |
bobbery | 0:b47c2a7920c2 | 540 | ecl.ptimers[id_].period = period_; |
bobbery | 0:b47c2a7920c2 | 541 | return ecl_timer_start(id_, 0); |
bobbery | 0:b47c2a7920c2 | 542 | } |
bobbery | 0:b47c2a7920c2 | 543 | |
bobbery | 0:b47c2a7920c2 | 544 | return ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 545 | } |
bobbery | 0:b47c2a7920c2 | 546 | |
bobbery | 0:b47c2a7920c2 | 547 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 548 | /// Sets a timer's mode. |
bobbery | 0:b47c2a7920c2 | 549 | //******************************************* |
bobbery | 0:b47c2a7920c2 | 550 | ecl_timer_result_t ecl_timer_set_mode(ecl_timer_id_t id_, ecl_timer_mode_t repeating_) |
bobbery | 0:b47c2a7920c2 | 551 | { |
bobbery | 0:b47c2a7920c2 | 552 | assert(ecl.ptimers != 0); |
bobbery | 0:b47c2a7920c2 | 553 | |
bobbery | 0:b47c2a7920c2 | 554 | if (ecl_timer_stop(id_)) |
bobbery | 0:b47c2a7920c2 | 555 | { |
bobbery | 0:b47c2a7920c2 | 556 | ecl.ptimers[id_].repeating = repeating_; |
bobbery | 0:b47c2a7920c2 | 557 | return ecl_timer_start(id_, 0); |
bobbery | 0:b47c2a7920c2 | 558 | } |
bobbery | 0:b47c2a7920c2 | 559 | |
bobbery | 0:b47c2a7920c2 | 560 | return ECL_TIMER_FAIL; |
bobbery | 0:b47c2a7920c2 | 561 | } |
bobbery | 0:b47c2a7920c2 | 562 | |
bobbery | 0:b47c2a7920c2 | 563 | |
bobbery | 0:b47c2a7920c2 | 564 | |
bobbery | 0:b47c2a7920c2 | 565 | |
bobbery | 0:b47c2a7920c2 | 566 |