aboutsummaryrefslogtreecommitdiffstats
path: root/os/kernel/src/chvt.c
diff options
context:
space:
mode:
Diffstat (limited to 'os/kernel/src/chvt.c')
-rw-r--r--os/kernel/src/chvt.c211
1 files changed, 0 insertions, 211 deletions
diff --git a/os/kernel/src/chvt.c b/os/kernel/src/chvt.c
deleted file mode 100644
index 3f1559ac4..000000000
--- a/os/kernel/src/chvt.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
- 2011,2012,2013 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file chvt.c
- * @brief Time and Virtual Timers module code.
- *
- * @addtogroup time
- * @details Time and Virtual Timers related APIs and services.
- * @{
- */
-
-#include "ch.h"
-
-/*===========================================================================*/
-/* Module local definitions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Module exported variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Module local types. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Module local variables. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Module local functions. */
-/*===========================================================================*/
-
-/*===========================================================================*/
-/* Module exported functions. */
-/*===========================================================================*/
-
-/**
- * @brief Virtual Timers initialization.
- * @note Internal use only.
- *
- * @notapi
- */
-void _vt_init(void) {
-
- ch.vtlist.vt_next = ch.vtlist.vt_prev = (void *)&ch.vtlist;
- ch.vtlist.vt_delta = (systime_t)-1;
-#if CH_CFG_TIMEDELTA == 0
- ch.vtlist.vt_systime = 0;
-#else /* CH_CFG_TIMEDELTA > 0 */
- ch.vtlist.vt_lasttime = 0;
-#endif /* CH_CFG_TIMEDELTA > 0 */
-}
-
-/**
- * @brief Checks if the current system time is within the specified time
- * window.
- * @note When start==end then the function returns always true because the
- * whole time range is specified.
- * @note This function can be called from any context.
- *
- * @param[in] time the time to be verified
- * @param[in] start the start of the time window (inclusive)
- * @param[in] end the end of the time window (non inclusive)
- * @retval true current time within the specified time window.
- * @retval false current time not within the specified time window.
- *
- * @xclass
- */
-bool chVTIsTimeWithinX(systime_t time, systime_t start, systime_t end) {
-
- return end > start ? (time >= start) && (time < end) :
- (time >= start) || (time < end);
-}
-
-/**
- * @brief Enables a virtual timer.
- * @details The timer is enabled and programmed to trigger after the delay
- * specified as parameter.
- * @pre The timer must not be already armed before calling this function.
- * @note The callback function is invoked from interrupt context.
- *
- * @param[out] vtp the @p virtual_timer_t structure pointer
- * @param[in] delay the number of ticks before the operation timeouts, the
- * special values are handled as follow:
- * - @a TIME_INFINITE is allowed but interpreted as a
- * normal time specification.
- * - @a TIME_IMMEDIATE this value is not allowed.
- * .
- * @param[in] vtfunc the timer callback function. After invoking the
- * callback the timer is disabled and the structure can
- * be disposed or reused.
- * @param[in] par a parameter that will be passed to the callback
- * function
- *
- * @iclass
- */
-void chVTDoSetI(virtual_timer_t *vtp, systime_t delay,
- vtfunc_t vtfunc, void *par) {
- virtual_timer_t *p;
-
- chDbgCheckClassI();
- chDbgCheck((vtp != NULL) && (vtfunc != NULL) && (delay != TIME_IMMEDIATE));
-
- vtp->vt_par = par;
- vtp->vt_func = vtfunc;
- p = ch.vtlist.vt_next;
-
-#if CH_CFG_TIMEDELTA > 0 || defined(__DOXYGEN__)
- {
- systime_t now = port_timer_get_time();
-
- /* If the requested delay is lower than the minimum safe delta then it
- is raised to the minimum safe value.*/
- if (delay < CH_CFG_TIMEDELTA)
- delay = CH_CFG_TIMEDELTA;
-
- if (&ch.vtlist == (virtual_timers_list_t *)p) {
- /* The delta list is empty, the current time becomes the new
- delta list base time.*/
- ch.vtlist.vt_lasttime = now;
- port_timer_start_alarm(ch.vtlist.vt_lasttime + delay);
- }
- else {
- /* Now the delay is calculated as delta from the last tick interrupt
- time.*/
- delay += now - ch.vtlist.vt_lasttime;
-
- /* If the specified delay is closer in time than the first element
- in the delta list then it becomes the next alarm event in time.*/
- if (delay < p->vt_delta)
- port_timer_set_alarm(ch.vtlist.vt_lasttime + delay);
- }
- }
-#endif /* CH_CFG_TIMEDELTA > 0 */
-
- /* The delta list is scanned in order to find the correct position for
- this timer. */
- while (p->vt_delta < delay) {
- delay -= p->vt_delta;
- p = p->vt_next;
- }
- /* The timer is inserted in the delta list.*/
- vtp->vt_prev = (vtp->vt_next = p)->vt_prev;
- vtp->vt_prev->vt_next = p->vt_prev = vtp;
- vtp->vt_delta = delay
-
- /* Special case when the timer is in last position in the list, the
- value in the header must be restored.*/;
- p->vt_delta -= delay;
- ch.vtlist.vt_delta = (systime_t)-1;
-}
-
-/**
- * @brief Disables a Virtual Timer.
- * @pre The timer must be in armed state before calling this function.
- *
- * @param[in] vtp the @p virtual_timer_t structure pointer
- *
- * @iclass
- */
-void chVTDoResetI(virtual_timer_t *vtp) {
-
- chDbgCheckClassI();
- chDbgCheck(vtp != NULL);
- chDbgAssert(vtp->vt_func != NULL, "timer not set or already triggered");
-
- /* Removing the element from the delta list.*/
- vtp->vt_next->vt_delta += vtp->vt_delta;
- vtp->vt_prev->vt_next = vtp->vt_next;
- vtp->vt_next->vt_prev = vtp->vt_prev;
- vtp->vt_func = (vtfunc_t)NULL;
-
- /* The above code changes the value in the header when the removed element
- is the last of the list, restoring it.*/
- ch.vtlist.vt_delta = (systime_t)-1;
-
-#if CH_CFG_TIMEDELTA > 0 || defined(__DOXYGEN__)
- {
- if (&ch.vtlist == (virtual_timers_list_t *)ch.vtlist.vt_next) {
- /* Just removed the last element in the list, alarm timer stopped.*/
- port_timer_stop_alarm();
- }
- else {
- /* The alarm is set to the next element in the delta list.*/
- port_timer_set_alarm(ch.vtlist.vt_lasttime +
- ch.vtlist.vt_next->vt_delta);
- }
- }
-#endif /* CH_CFG_TIMEDELTA > 0 */
-}
-
-/** @} */
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-02 06:10:54 +0000