Harald Welte | d1bd5c4 | 2019-05-17 16:38:30 +0200 | [diff] [blame] | 1 | /** |
| 2 | * \file |
| 3 | * |
| 4 | * \brief Generic CALENDAR functionality implementation. |
| 5 | * |
| 6 | * Copyright (c) 2014-2018 Microchip Technology Inc. and its subsidiaries. |
| 7 | * |
| 8 | * \asf_license_start |
| 9 | * |
| 10 | * \page License |
| 11 | * |
| 12 | * Subject to your compliance with these terms, you may use Microchip |
| 13 | * software and any derivatives exclusively with Microchip products. |
| 14 | * It is your responsibility to comply with third party license terms applicable |
| 15 | * to your use of third party software (including open source software) that |
| 16 | * may accompany Microchip software. |
| 17 | * |
| 18 | * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, |
| 19 | * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, |
| 20 | * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, |
| 21 | * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE |
| 22 | * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL |
| 23 | * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE |
| 24 | * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE |
| 25 | * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT |
| 26 | * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY |
| 27 | * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, |
| 28 | * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE. |
| 29 | * |
| 30 | * \asf_license_stop |
| 31 | * |
| 32 | */ |
| 33 | |
| 34 | #include "hal_calendar.h" |
| 35 | #include <utils.h> |
| 36 | #include <utils_assert.h> |
| 37 | #include <hal_atomic.h> |
| 38 | |
| 39 | #define CALENDAR_VERSION 0x00000001u |
| 40 | #define SECS_IN_LEAP_YEAR 31622400 |
| 41 | #define SECS_IN_NON_LEAP_YEAR 31536000 |
| 42 | #define SECS_IN_31DAYS 2678400 |
| 43 | #define SECS_IN_30DAYS 2592000 |
| 44 | #define SECS_IN_29DAYS 2505600 |
| 45 | #define SECS_IN_28DAYS 2419200 |
| 46 | #define SECS_IN_DAY 86400 |
| 47 | #define SECS_IN_HOUR 3600 |
| 48 | #define SECS_IN_MINUTE 60 |
| 49 | #define DEFAULT_BASE_YEAR 1970 |
| 50 | |
| 51 | #define SET_ALARM_BUSY 1 |
| 52 | #define PROCESS_ALARM_BUSY 2 |
| 53 | |
| 54 | /** \brief leap year check |
| 55 | * \retval false not leap year. |
| 56 | * \retval true leap year. |
| 57 | */ |
| 58 | static bool leap_year(uint16_t year) |
| 59 | { |
| 60 | if (year & 3) { |
| 61 | return false; |
| 62 | } else { |
| 63 | return true; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | /** \brief calculate the seconds in specified year/month |
| 68 | * \retval 0 month error. |
| 69 | */ |
| 70 | static uint32_t get_secs_in_month(uint32_t year, uint8_t month) |
| 71 | { |
| 72 | uint32_t sec_in_month = 0; |
| 73 | |
| 74 | if (leap_year(year)) { |
| 75 | switch (month) { |
| 76 | case 1: |
| 77 | case 3: |
| 78 | case 5: |
| 79 | case 7: |
| 80 | case 8: |
| 81 | case 10: |
| 82 | case 12: |
| 83 | sec_in_month = SECS_IN_31DAYS; |
| 84 | break; |
| 85 | case 2: |
| 86 | sec_in_month = SECS_IN_29DAYS; |
| 87 | break; |
| 88 | case 4: |
| 89 | case 6: |
| 90 | case 9: |
| 91 | case 11: |
| 92 | sec_in_month = SECS_IN_30DAYS; |
| 93 | break; |
| 94 | default: |
| 95 | break; |
| 96 | } |
| 97 | } else { |
| 98 | switch (month) { |
| 99 | case 1: |
| 100 | case 3: |
| 101 | case 5: |
| 102 | case 7: |
| 103 | case 8: |
| 104 | case 10: |
| 105 | case 12: |
| 106 | sec_in_month = SECS_IN_31DAYS; |
| 107 | break; |
| 108 | case 2: |
| 109 | sec_in_month = SECS_IN_28DAYS; |
| 110 | break; |
| 111 | case 4: |
| 112 | case 6: |
| 113 | case 9: |
| 114 | case 11: |
| 115 | sec_in_month = SECS_IN_30DAYS; |
| 116 | break; |
| 117 | default: |
| 118 | break; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | return sec_in_month; |
| 123 | } |
| 124 | |
| 125 | /** \brief convert timestamp to date/time |
| 126 | */ |
| 127 | static int32_t convert_timestamp_to_datetime(struct calendar_descriptor *const calendar, uint32_t ts, |
| 128 | struct calendar_date_time *dt) |
| 129 | { |
| 130 | uint32_t tmp, sec_in_year, sec_in_month; |
| 131 | uint32_t tmp_year = calendar->base_year; |
| 132 | uint8_t tmp_month = 1; |
| 133 | uint8_t tmp_day = 1; |
| 134 | uint8_t tmp_hour = 0; |
| 135 | uint8_t tmp_minutes = 0; |
| 136 | |
| 137 | tmp = ts; |
| 138 | |
| 139 | /* Find year */ |
| 140 | while (true) { |
| 141 | sec_in_year = leap_year(tmp_year) ? SECS_IN_LEAP_YEAR : SECS_IN_NON_LEAP_YEAR; |
| 142 | |
| 143 | if (tmp >= sec_in_year) { |
| 144 | tmp -= sec_in_year; |
| 145 | tmp_year++; |
| 146 | } else { |
| 147 | break; |
| 148 | } |
| 149 | } |
| 150 | /* Find month of year */ |
| 151 | while (true) { |
| 152 | sec_in_month = get_secs_in_month(tmp_year, tmp_month); |
| 153 | |
| 154 | if (tmp >= sec_in_month) { |
| 155 | tmp -= sec_in_month; |
| 156 | tmp_month++; |
| 157 | } else { |
| 158 | break; |
| 159 | } |
| 160 | } |
| 161 | /* Find day of month */ |
| 162 | while (true) { |
| 163 | if (tmp >= SECS_IN_DAY) { |
| 164 | tmp -= SECS_IN_DAY; |
| 165 | tmp_day++; |
| 166 | } else { |
| 167 | break; |
| 168 | } |
| 169 | } |
| 170 | /* Find hour of day */ |
| 171 | while (true) { |
| 172 | if (tmp >= SECS_IN_HOUR) { |
| 173 | tmp -= SECS_IN_HOUR; |
| 174 | tmp_hour++; |
| 175 | } else { |
| 176 | break; |
| 177 | } |
| 178 | } |
| 179 | /* Find minute in hour */ |
| 180 | while (true) { |
| 181 | if (tmp >= SECS_IN_MINUTE) { |
| 182 | tmp -= SECS_IN_MINUTE; |
| 183 | tmp_minutes++; |
| 184 | } else { |
| 185 | break; |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | dt->date.year = tmp_year; |
| 190 | dt->date.month = tmp_month; |
| 191 | dt->date.day = tmp_day; |
| 192 | dt->time.hour = tmp_hour; |
| 193 | dt->time.min = tmp_minutes; |
| 194 | dt->time.sec = tmp; |
| 195 | |
| 196 | return ERR_NONE; |
| 197 | } |
| 198 | |
| 199 | /** \brief convert date/time to timestamp |
| 200 | * \return timestamp |
| 201 | */ |
| 202 | static uint32_t convert_datetime_to_timestamp(struct calendar_descriptor *const calendar, struct calendar_date_time *dt) |
| 203 | { |
| 204 | uint32_t tmp = 0; |
| 205 | uint32_t i = 0; |
| 206 | uint8_t year, month, day, hour, minutes, seconds; |
| 207 | |
| 208 | year = dt->date.year - calendar->base_year; |
| 209 | month = dt->date.month; |
| 210 | day = dt->date.day; |
| 211 | hour = dt->time.hour; |
| 212 | minutes = dt->time.min; |
| 213 | seconds = dt->time.sec; |
| 214 | |
| 215 | /* tot up year field */ |
| 216 | for (i = 0; i < year; ++i) { |
| 217 | if (leap_year(calendar->base_year + i)) { |
| 218 | tmp += SECS_IN_LEAP_YEAR; |
| 219 | } else { |
| 220 | tmp += SECS_IN_NON_LEAP_YEAR; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | /* tot up month field */ |
| 225 | for (i = 1; i < month; ++i) { |
| 226 | tmp += get_secs_in_month(dt->date.year, i); |
| 227 | } |
| 228 | |
| 229 | /* tot up day/hour/minute/second fields */ |
| 230 | tmp += (day - 1) * SECS_IN_DAY; |
| 231 | tmp += hour * SECS_IN_HOUR; |
| 232 | tmp += minutes * SECS_IN_MINUTE; |
| 233 | tmp += seconds; |
| 234 | |
| 235 | return tmp; |
| 236 | } |
| 237 | |
| 238 | /** \brief calibrate timestamp to make desired timestamp ahead of current timestamp |
| 239 | */ |
| 240 | static void calibrate_timestamp(struct calendar_descriptor *const calendar, struct calendar_alarm *alarm, |
| 241 | struct calendar_alarm *current_dt) |
| 242 | { |
| 243 | uint32_t alarm_ts; |
| 244 | uint32_t current_ts = current_dt->cal_alarm.timestamp; |
| 245 | |
| 246 | alarm_ts = alarm->cal_alarm.timestamp; |
| 247 | |
| 248 | /* calibrate timestamp */ |
| 249 | switch (alarm->cal_alarm.option) { |
| 250 | case CALENDAR_ALARM_MATCH_SEC: |
| 251 | |
| 252 | if (alarm_ts <= current_ts) { |
| 253 | alarm_ts += SECS_IN_MINUTE; |
| 254 | } |
| 255 | |
| 256 | break; |
| 257 | case CALENDAR_ALARM_MATCH_MIN: |
| 258 | |
| 259 | if (alarm_ts <= current_ts) { |
| 260 | alarm_ts += SECS_IN_HOUR; |
| 261 | } |
| 262 | |
| 263 | break; |
| 264 | case CALENDAR_ALARM_MATCH_HOUR: |
| 265 | |
| 266 | if (alarm_ts <= current_ts) { |
| 267 | alarm_ts += SECS_IN_DAY; |
| 268 | } |
| 269 | |
| 270 | break; |
| 271 | case CALENDAR_ALARM_MATCH_DAY: |
| 272 | |
| 273 | if (alarm_ts <= current_ts) { |
| 274 | alarm_ts += get_secs_in_month(current_dt->cal_alarm.datetime.date.year, |
| 275 | current_dt->cal_alarm.datetime.date.month); |
| 276 | } |
| 277 | |
| 278 | break; |
| 279 | case CALENDAR_ALARM_MATCH_MONTH: |
| 280 | |
| 281 | if (alarm_ts <= current_ts) { |
| 282 | if (leap_year(current_dt->cal_alarm.datetime.date.year)) { |
| 283 | alarm_ts += SECS_IN_LEAP_YEAR; |
| 284 | } else { |
| 285 | alarm_ts += SECS_IN_NON_LEAP_YEAR; |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | break; |
| 290 | /* do nothing for year match */ |
| 291 | case CALENDAR_ALARM_MATCH_YEAR: |
| 292 | default: |
| 293 | break; |
| 294 | } |
| 295 | |
| 296 | /* desired timestamp after calibration */ |
| 297 | alarm->cal_alarm.timestamp = alarm_ts; |
| 298 | } |
| 299 | |
| 300 | /** \brief complete alarm to absolute date/time, then fill up the timestamp |
| 301 | */ |
| 302 | static void fill_alarm(struct calendar_descriptor *const calendar, struct calendar_alarm *alarm) |
| 303 | { |
| 304 | struct calendar_alarm current_dt; |
| 305 | uint32_t tmp, current_ts; |
| 306 | |
| 307 | /* get current date/time */ |
| 308 | current_ts = _calendar_get_counter(&calendar->device); |
| 309 | convert_timestamp_to_datetime(calendar, current_ts, ¤t_dt.cal_alarm.datetime); |
| 310 | |
| 311 | current_dt.cal_alarm.timestamp = current_ts; |
| 312 | |
| 313 | /* complete alarm */ |
| 314 | switch (alarm->cal_alarm.option) { |
| 315 | case CALENDAR_ALARM_MATCH_SEC: |
| 316 | alarm->cal_alarm.datetime.date.year = current_dt.cal_alarm.datetime.date.year; |
| 317 | alarm->cal_alarm.datetime.date.month = current_dt.cal_alarm.datetime.date.month; |
| 318 | alarm->cal_alarm.datetime.date.day = current_dt.cal_alarm.datetime.date.day; |
| 319 | alarm->cal_alarm.datetime.time.hour = current_dt.cal_alarm.datetime.time.hour; |
| 320 | alarm->cal_alarm.datetime.time.min = current_dt.cal_alarm.datetime.time.min; |
| 321 | break; |
| 322 | case CALENDAR_ALARM_MATCH_MIN: |
| 323 | alarm->cal_alarm.datetime.date.year = current_dt.cal_alarm.datetime.date.year; |
| 324 | alarm->cal_alarm.datetime.date.month = current_dt.cal_alarm.datetime.date.month; |
| 325 | alarm->cal_alarm.datetime.date.day = current_dt.cal_alarm.datetime.date.day; |
| 326 | alarm->cal_alarm.datetime.time.hour = current_dt.cal_alarm.datetime.time.hour; |
| 327 | break; |
| 328 | case CALENDAR_ALARM_MATCH_HOUR: |
| 329 | alarm->cal_alarm.datetime.date.year = current_dt.cal_alarm.datetime.date.year; |
| 330 | alarm->cal_alarm.datetime.date.month = current_dt.cal_alarm.datetime.date.month; |
| 331 | alarm->cal_alarm.datetime.date.day = current_dt.cal_alarm.datetime.date.day; |
| 332 | break; |
| 333 | case CALENDAR_ALARM_MATCH_DAY: |
| 334 | alarm->cal_alarm.datetime.date.year = current_dt.cal_alarm.datetime.date.year; |
| 335 | alarm->cal_alarm.datetime.date.month = current_dt.cal_alarm.datetime.date.month; |
| 336 | break; |
| 337 | case CALENDAR_ALARM_MATCH_MONTH: |
| 338 | alarm->cal_alarm.datetime.date.year = current_dt.cal_alarm.datetime.date.year; |
| 339 | break; |
| 340 | case CALENDAR_ALARM_MATCH_YEAR: |
| 341 | break; |
| 342 | default: |
| 343 | break; |
| 344 | } |
| 345 | |
| 346 | /* fill up the timestamp */ |
| 347 | tmp = convert_datetime_to_timestamp(calendar, &alarm->cal_alarm.datetime); |
| 348 | alarm->cal_alarm.timestamp = tmp; |
| 349 | |
| 350 | /* calibrate the timestamp */ |
| 351 | calibrate_timestamp(calendar, alarm, ¤t_dt); |
| 352 | convert_timestamp_to_datetime(calendar, alarm->cal_alarm.timestamp, &alarm->cal_alarm.datetime); |
| 353 | } |
| 354 | |
| 355 | /** \brief add new alarm into the list in ascending order |
| 356 | */ |
| 357 | static int32_t calendar_add_new_alarm(struct list_descriptor *list, struct calendar_alarm *alarm) |
| 358 | { |
| 359 | struct calendar_descriptor *calendar = CONTAINER_OF(list, struct calendar_descriptor, alarms); |
| 360 | struct calendar_alarm * head, *it, *prev = NULL; |
| 361 | |
| 362 | /*get the head of alarms list*/ |
| 363 | head = (struct calendar_alarm *)list_get_head(list); |
| 364 | |
| 365 | /*if head is null, insert new alarm as head*/ |
| 366 | if (!head) { |
| 367 | list_insert_as_head(list, alarm); |
| 368 | _calendar_set_comp(&calendar->device, alarm->cal_alarm.timestamp); |
| 369 | return ERR_NONE; |
| 370 | } |
| 371 | |
| 372 | /*insert the new alarm in accending order, the head will be invoked firstly */ |
| 373 | for (it = head; it; it = (struct calendar_alarm *)list_get_next_element(it)) { |
| 374 | if (alarm->cal_alarm.timestamp <= it->cal_alarm.timestamp) { |
| 375 | break; |
| 376 | } |
| 377 | |
| 378 | prev = it; |
| 379 | } |
| 380 | |
| 381 | /*insert new alarm into the list */ |
| 382 | if (it == head) { |
| 383 | list_insert_as_head(list, alarm); |
| 384 | /*get the head and set it into register*/ |
| 385 | _calendar_set_comp(&calendar->device, alarm->cal_alarm.timestamp); |
| 386 | |
| 387 | } else { |
| 388 | list_insert_after(prev, alarm); |
| 389 | } |
| 390 | |
| 391 | return ERR_NONE; |
| 392 | } |
| 393 | |
| 394 | /** \brief callback for alarm |
| 395 | */ |
| 396 | static void calendar_alarm(struct calendar_dev *const dev) |
| 397 | { |
| 398 | struct calendar_descriptor *calendar = CONTAINER_OF(dev, struct calendar_descriptor, device); |
| 399 | |
| 400 | struct calendar_alarm *head, *it, current_dt; |
| 401 | |
| 402 | if ((calendar->flags & SET_ALARM_BUSY) || (calendar->flags & PROCESS_ALARM_BUSY)) { |
| 403 | calendar->flags |= PROCESS_ALARM_BUSY; |
| 404 | return; |
| 405 | } |
| 406 | |
| 407 | /* get current timestamp */ |
| 408 | current_dt.cal_alarm.timestamp = _calendar_get_counter(dev); |
| 409 | |
| 410 | /* get the head */ |
| 411 | head = (struct calendar_alarm *)list_get_head(&calendar->alarms); |
| 412 | ASSERT(head); |
| 413 | |
| 414 | /* remove all alarms and invoke them*/ |
| 415 | for (it = head; it; it = (struct calendar_alarm *)list_get_head(&calendar->alarms)) { |
| 416 | /* check the timestamp with current timestamp*/ |
| 417 | if (it->cal_alarm.timestamp <= current_dt.cal_alarm.timestamp) { |
| 418 | list_remove_head(&calendar->alarms); |
| 419 | it->callback(calendar); |
| 420 | |
| 421 | if (it->cal_alarm.mode == REPEAT) { |
| 422 | calibrate_timestamp(calendar, it, ¤t_dt); |
| 423 | convert_timestamp_to_datetime(calendar, it->cal_alarm.timestamp, &it->cal_alarm.datetime); |
| 424 | calendar_add_new_alarm(&calendar->alarms, it); |
| 425 | } |
| 426 | } else { |
| 427 | break; |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | /*if no alarm in the list, register null */ |
| 432 | if (!it) { |
| 433 | _calendar_register_callback(&calendar->device, NULL); |
| 434 | return; |
| 435 | } |
| 436 | |
| 437 | /*put the new head into register */ |
| 438 | _calendar_set_comp(&calendar->device, it->cal_alarm.timestamp); |
| 439 | } |
| 440 | |
| 441 | /** \brief Initialize Calendar |
| 442 | */ |
| 443 | int32_t calendar_init(struct calendar_descriptor *const calendar, const void *hw) |
| 444 | { |
| 445 | int32_t ret = 0; |
| 446 | |
| 447 | /* Sanity check arguments */ |
| 448 | ASSERT(calendar); |
| 449 | |
| 450 | if (calendar->device.hw == hw) { |
| 451 | /* Already initialized with current configuration */ |
| 452 | return ERR_NONE; |
| 453 | } else if (calendar->device.hw != NULL) { |
| 454 | /* Initialized with another configuration */ |
| 455 | return ERR_ALREADY_INITIALIZED; |
| 456 | } |
| 457 | calendar->device.hw = (void *)hw; |
| 458 | ret = _calendar_init(&calendar->device); |
| 459 | calendar->base_year = DEFAULT_BASE_YEAR; |
| 460 | |
| 461 | return ret; |
| 462 | } |
| 463 | |
| 464 | /** \brief Reset the Calendar |
| 465 | */ |
| 466 | int32_t calendar_deinit(struct calendar_descriptor *const calendar) |
| 467 | { |
| 468 | /* Sanity check arguments */ |
| 469 | ASSERT(calendar); |
| 470 | |
| 471 | if (calendar->device.hw == NULL) { |
| 472 | return ERR_NOT_INITIALIZED; |
| 473 | } |
| 474 | _calendar_deinit(&calendar->device); |
| 475 | calendar->device.hw = NULL; |
| 476 | |
| 477 | return ERR_NONE; |
| 478 | } |
| 479 | |
| 480 | /** \brief Enable the Calendar |
| 481 | */ |
| 482 | int32_t calendar_enable(struct calendar_descriptor *const calendar) |
| 483 | { |
| 484 | /* Sanity check arguments */ |
| 485 | ASSERT(calendar); |
| 486 | |
| 487 | _calendar_enable(&calendar->device); |
| 488 | |
| 489 | return ERR_NONE; |
| 490 | } |
| 491 | |
| 492 | /** \brief Disable the Calendar |
| 493 | */ |
| 494 | int32_t calendar_disable(struct calendar_descriptor *const calendar) |
| 495 | { |
| 496 | /* Sanity check arguments */ |
| 497 | ASSERT(calendar); |
| 498 | |
| 499 | _calendar_disable(&calendar->device); |
| 500 | |
| 501 | return ERR_NONE; |
| 502 | } |
| 503 | |
| 504 | /** \brief Set base year for calendar |
| 505 | */ |
| 506 | int32_t calendar_set_baseyear(struct calendar_descriptor *const calendar, const uint32_t p_base_year) |
| 507 | { |
| 508 | /* Sanity check arguments */ |
| 509 | ASSERT(calendar); |
| 510 | |
| 511 | calendar->base_year = p_base_year; |
| 512 | |
| 513 | return ERR_NONE; |
| 514 | } |
| 515 | |
| 516 | /** \brief Set time for calendar |
| 517 | */ |
| 518 | int32_t calendar_set_time(struct calendar_descriptor *const calendar, struct calendar_time *const p_calendar_time) |
| 519 | { |
| 520 | struct calendar_date_time dt; |
| 521 | uint32_t current_ts, new_ts; |
| 522 | |
| 523 | /* Sanity check arguments */ |
| 524 | ASSERT(calendar); |
| 525 | |
| 526 | /* convert time to timestamp */ |
| 527 | current_ts = _calendar_get_counter(&calendar->device); |
| 528 | convert_timestamp_to_datetime(calendar, current_ts, &dt); |
| 529 | dt.time.sec = p_calendar_time->sec; |
| 530 | dt.time.min = p_calendar_time->min; |
| 531 | dt.time.hour = p_calendar_time->hour; |
| 532 | |
| 533 | new_ts = convert_datetime_to_timestamp(calendar, &dt); |
| 534 | |
| 535 | _calendar_set_counter(&calendar->device, new_ts); |
| 536 | |
| 537 | return ERR_NONE; |
| 538 | } |
| 539 | |
| 540 | /** \brief Set date for calendar |
| 541 | */ |
| 542 | int32_t calendar_set_date(struct calendar_descriptor *const calendar, struct calendar_date *const p_calendar_date) |
| 543 | { |
| 544 | struct calendar_date_time dt; |
| 545 | uint32_t current_ts, new_ts; |
| 546 | |
| 547 | /* Sanity check arguments */ |
| 548 | ASSERT(calendar); |
| 549 | |
| 550 | /* convert date to timestamp */ |
| 551 | current_ts = _calendar_get_counter(&calendar->device); |
| 552 | convert_timestamp_to_datetime(calendar, current_ts, &dt); |
| 553 | dt.date.day = p_calendar_date->day; |
| 554 | dt.date.month = p_calendar_date->month; |
| 555 | dt.date.year = p_calendar_date->year; |
| 556 | |
| 557 | new_ts = convert_datetime_to_timestamp(calendar, &dt); |
| 558 | |
| 559 | _calendar_set_counter(&calendar->device, new_ts); |
| 560 | |
| 561 | return ERR_NONE; |
| 562 | } |
| 563 | |
| 564 | /** \brief Get date/time for calendar |
| 565 | */ |
| 566 | int32_t calendar_get_date_time(struct calendar_descriptor *const calendar, struct calendar_date_time *const date_time) |
| 567 | { |
| 568 | uint32_t current_ts; |
| 569 | |
| 570 | /* Sanity check arguments */ |
| 571 | ASSERT(calendar); |
| 572 | |
| 573 | /* convert current timestamp to date/time */ |
| 574 | current_ts = _calendar_get_counter(&calendar->device); |
| 575 | convert_timestamp_to_datetime(calendar, current_ts, date_time); |
| 576 | |
| 577 | return ERR_NONE; |
| 578 | } |
| 579 | |
| 580 | /** \brief Set alarm for calendar |
| 581 | */ |
| 582 | int32_t calendar_set_alarm(struct calendar_descriptor *const calendar, struct calendar_alarm *const alarm, |
| 583 | calendar_cb_alarm_t callback) |
| 584 | { |
| 585 | struct calendar_alarm *head; |
| 586 | |
| 587 | /* Sanity check arguments */ |
| 588 | ASSERT(calendar); |
| 589 | ASSERT(alarm); |
| 590 | |
| 591 | alarm->callback = callback; |
| 592 | |
| 593 | fill_alarm(calendar, alarm); |
| 594 | |
| 595 | calendar->flags |= SET_ALARM_BUSY; |
| 596 | |
| 597 | head = (struct calendar_alarm *)list_get_head(&calendar->alarms); |
| 598 | |
| 599 | if (head != NULL) { |
| 600 | /* already added */ |
| 601 | if (is_list_element(&calendar->alarms, alarm)) { |
| 602 | if (callback == NULL) { |
| 603 | /* remove alarm */ |
| 604 | list_delete_element(&calendar->alarms, alarm); |
| 605 | |
| 606 | if (!list_get_head(&calendar->alarms)) { |
| 607 | _calendar_register_callback(&calendar->device, NULL); |
| 608 | } |
| 609 | } else { |
| 610 | /* re-add */ |
| 611 | list_delete_element(&calendar->alarms, alarm); |
| 612 | calendar_add_new_alarm(&calendar->alarms, alarm); |
| 613 | } |
| 614 | } else if (callback != NULL) { |
| 615 | calendar_add_new_alarm(&calendar->alarms, alarm); |
| 616 | } |
| 617 | |
| 618 | calendar->flags &= ~SET_ALARM_BUSY; |
| 619 | |
| 620 | if (calendar->flags & PROCESS_ALARM_BUSY) { |
| 621 | CRITICAL_SECTION_ENTER() |
| 622 | calendar->flags &= ~PROCESS_ALARM_BUSY; |
| 623 | _calendar_set_irq(&calendar->device); |
| 624 | CRITICAL_SECTION_LEAVE() |
| 625 | } |
| 626 | } else if (callback != NULL) { |
| 627 | /* if head is NULL, Register callback*/ |
| 628 | _calendar_register_callback(&calendar->device, calendar_alarm); |
| 629 | calendar_add_new_alarm(&calendar->alarms, alarm); |
| 630 | } |
| 631 | |
| 632 | calendar->flags &= ~SET_ALARM_BUSY; |
| 633 | |
| 634 | return ERR_NONE; |
| 635 | } |
| 636 | |
| 637 | /** \brief Retrieve driver version |
| 638 | * \return Current driver version |
| 639 | */ |
| 640 | uint32_t calendar_get_version(void) |
| 641 | { |
| 642 | return CALENDAR_VERSION; |
| 643 | } |