diff options
Diffstat (limited to 'cpukit/rtems/include/rtems/rtems/timerimpl.h')
| -rw-r--r-- | cpukit/rtems/include/rtems/rtems/timerimpl.h | 216 |
1 files changed, 105 insertions, 111 deletions
diff --git a/cpukit/rtems/include/rtems/rtems/timerimpl.h b/cpukit/rtems/include/rtems/rtems/timerimpl.h index 55be6343c3..e4b4ca2ec4 100644 --- a/cpukit/rtems/include/rtems/rtems/timerimpl.h +++ b/cpukit/rtems/include/rtems/rtems/timerimpl.h @@ -10,6 +10,8 @@ * COPYRIGHT (c) 1989-2011. * On-Line Applications Research Corporation (OAR). * + * Copyright (c) 2016 embedded brains GmbH. + * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rtems.org/license/LICENSE. @@ -35,81 +37,13 @@ extern "C" { * @{ */ -typedef struct Timer_server_Control Timer_server_Control; +typedef struct Timer_server_Control { + ISR_LOCK_MEMBER( Lock ) -/** - * @brief Method used for task based timers. - */ -typedef void (*Timer_server_Method)( - Timer_server_Control *timer_server, - Timer_Control *timer -); + Chain_Control Pending; -typedef struct { - /** - * @brief This watchdog that will be registered in the system tick mechanic - * for timer server wake-up. - */ - Watchdog_Control System_watchdog; - - /** - * @brief Remaining delta of the system watchdog. - */ - Watchdog_Interval system_watchdog_delta; - - /** - * @brief Unique identifier of the context which deals currently with the - * system watchdog. - */ - Thread_Control *system_watchdog_helper; - - /** - * @brief Each insert and tickle operation increases the generation count so - * that the system watchdog dealer notices updates of the watchdog chain. - */ - uint32_t generation; - - /** - * @brief Watchdog header managed by the timer server. - */ - Watchdog_Header Header; - - /** - * @brief Last time snapshot of the timer server. - * - * The units may be ticks or seconds. - */ - Watchdog_Interval last_snapshot; - - /** - * @brief Current time snapshot of the timer server. - * - * The units may be ticks or seconds. - */ - Watchdog_Interval current_snapshot; -} Timer_server_Watchdogs; - -struct Timer_server_Control { - /** - * @brief The cancel method of the timer server. - */ - Timer_server_Method cancel; - - /** - * @brief The schedule operation method of the timer server. - */ - Timer_server_Method schedule_operation; - - /** - * @brief Interval watchdogs triggered by the timer server. - */ - Timer_server_Watchdogs Interval_watchdogs; - - /** - * @brief TOD watchdogs triggered by the timer server. - */ - Timer_server_Watchdogs TOD_watchdogs; -}; + Objects_Id server_id; +} Timer_server_Control; /** * @brief Pointer to default timer server control block. @@ -148,64 +82,124 @@ RTEMS_INLINE_ROUTINE void _Timer_Free ( _Objects_Free( &_Timer_Information, &the_timer->Object ); } -/** - * @brief Timer_Get - * - * This function maps timer IDs to timer control blocks. - * If ID corresponds to a local timer, then it returns - * the timer control pointer which maps to ID and location - * is set to OBJECTS_LOCAL. Otherwise, location is set - * to OBJECTS_ERROR and the returned value is undefined. - */ -RTEMS_INLINE_ROUTINE Timer_Control *_Timer_Get ( +RTEMS_INLINE_ROUTINE Timer_Control *_Timer_Get( Objects_Id id, - Objects_Locations *location + Objects_Locations *location, + ISR_lock_Context *lock_context ) { - return (Timer_Control *) - _Objects_Get( &_Timer_Information, id, location ); + return (Timer_Control *) _Objects_Get_isr_disable( + &_Timer_Information, + id, + location, + lock_context + ); } -/** - * @brief Timer_Is_interval_class - * - * This function returns TRUE if the class is that of an INTERVAL - * timer, and FALSE otherwise. - */ -RTEMS_INLINE_ROUTINE bool _Timer_Is_interval_class ( +RTEMS_INLINE_ROUTINE Per_CPU_Control *_Timer_Acquire_critical( + Timer_Control *the_timer, + ISR_lock_Context *lock_context +) +{ + Per_CPU_Control *cpu; + + cpu = _Watchdog_Get_CPU( &the_timer->Ticker ); + _Watchdog_Per_CPU_acquire_critical( cpu, lock_context ); + + return cpu; +} + +RTEMS_INLINE_ROUTINE void _Timer_Release( + Per_CPU_Control *cpu, + ISR_lock_Context *lock_context +) +{ + _Watchdog_Per_CPU_release_critical( cpu, lock_context ); + _ISR_lock_ISR_enable( lock_context ); +} + +RTEMS_INLINE_ROUTINE bool _Timer_Is_interval_class( Timer_Classes the_class ) { - return (the_class == TIMER_INTERVAL) || (the_class == TIMER_INTERVAL_ON_TASK); + Timer_Classes mask = + TIMER_CLASS_BIT_NOT_DORMANT | TIMER_CLASS_BIT_TIME_OF_DAY; + + return ( the_class & mask ) == TIMER_CLASS_BIT_NOT_DORMANT; } -/** - * @brief Timer_Is_time_of_day_class - * - * This function returns TRUE if the class is that of an INTERVAL - * timer, and FALSE otherwise. - */ -RTEMS_INLINE_ROUTINE bool _Timer_Is_timer_of_day_class ( +RTEMS_INLINE_ROUTINE bool _Timer_Is_on_task_class( Timer_Classes the_class ) { - return ( the_class == TIMER_TIME_OF_DAY ); + Timer_Classes mask = + TIMER_CLASS_BIT_NOT_DORMANT | TIMER_CLASS_BIT_ON_TASK; + + return ( the_class & mask ) == mask; } -/** - * @brief Timer_Is_dormant_class - * - * This function returns TRUE if the class is that of a DORMANT - * timer, and FALSE otherwise. - */ -RTEMS_INLINE_ROUTINE bool _Timer_Is_dormant_class ( +RTEMS_INLINE_ROUTINE Per_CPU_Watchdog_index _Timer_Watchdog_header_index( Timer_Classes the_class ) { - return ( the_class == TIMER_DORMANT ); + return ( the_class & TIMER_CLASS_BIT_TIME_OF_DAY ); +} + +RTEMS_INLINE_ROUTINE Watchdog_Interval _Timer_Get_CPU_ticks( + const Per_CPU_Control *cpu +) +{ + return (Watchdog_Interval) cpu->Watchdog.ticks; } -void _Timer_Cancel( Timer_Control *the_timer ); +rtems_status_code _Timer_Fire( + rtems_id id, + rtems_interval interval, + rtems_timer_service_routine_entry routine, + void *user_data, + Timer_Classes the_class, + Watchdog_Service_routine_entry adaptor +); + +rtems_status_code _Timer_Fire_after( + rtems_id id, + rtems_interval ticks, + rtems_timer_service_routine_entry routine, + void *user_data, + Timer_Classes the_class, + Watchdog_Service_routine_entry adaptor +); + +rtems_status_code _Timer_Fire_when( + rtems_id id, + const rtems_time_of_day *wall_time, + rtems_timer_service_routine_entry routine, + void *user_data, + Timer_Classes the_class, + Watchdog_Service_routine_entry adaptor +); + +void _Timer_Cancel( Per_CPU_Control *cpu, Timer_Control *the_timer ); + +void _Timer_Routine_adaptor( Watchdog_Control *the_watchdog ); + +void _Timer_server_Routine_adaptor( Watchdog_Control *the_watchdog ); + +RTEMS_INLINE_ROUTINE void _Timer_server_Acquire_critical( + Timer_server_Control *timer_server, + ISR_lock_Context *lock_context +) +{ + _ISR_lock_Acquire( &timer_server->Lock, lock_context ); +} + +RTEMS_INLINE_ROUTINE void _Timer_server_Release_critical( + Timer_server_Control *timer_server, + ISR_lock_Context *lock_context +) +{ + _ISR_lock_Release( &timer_server->Lock, lock_context ); +} /**@}*/ |