180 lines
6.5 KiB
C
180 lines
6.5 KiB
C
/*
|
|
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 chglobal.h
|
|
* @brief Data structures with global scope header.
|
|
*
|
|
* @addtogroup global
|
|
*/
|
|
|
|
#ifndef _CHGLOBAL_H_
|
|
#define _CHGLOBAL_H_
|
|
|
|
/*===========================================================================*/
|
|
/* Module constants. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module pre-compile time settings. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Derived constants and error checks. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module data structures and types. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief Generic threads single link list, it works like a stack.
|
|
*/
|
|
typedef struct {
|
|
|
|
thread_t *p_next; /**< @brief Next in the list/queue. */
|
|
} threads_list_t;
|
|
|
|
/**
|
|
* @extends threads_list_t
|
|
*
|
|
* @brief Generic threads bidirectional linked list header and element.
|
|
*/
|
|
typedef struct {
|
|
thread_t *p_next; /**< @brief Next in the list/queue. */
|
|
thread_t *p_prev; /**< @brief Previous in the queue. */
|
|
} threads_queue_t;
|
|
|
|
/**
|
|
* @extends threads_queue_t
|
|
*
|
|
* @brief Ready list header.
|
|
*/
|
|
typedef struct {
|
|
threads_queue_t r_queue; /**< @brief Threads queue. */
|
|
tprio_t r_prio; /**< @brief This field must be
|
|
initialized to zero. */
|
|
struct context r_ctx; /**< @brief Not used, present because
|
|
offsets. */
|
|
#if CH_CFG_USE_REGISTRY || defined(__DOXYGEN__)
|
|
thread_t *r_newer; /**< @brief Newer registry element. */
|
|
thread_t *r_older; /**< @brief Older registry element. */
|
|
#endif
|
|
/* End of the fields shared with the thread_t structure.*/
|
|
thread_t *r_current; /**< @brief The currently running
|
|
thread. */
|
|
} ready_list_t;
|
|
|
|
/**
|
|
* @brief Virtual timers list header.
|
|
* @note The timers list is implemented as a double link bidirectional list
|
|
* in order to make the unlink time constant, the reset of a virtual
|
|
* timer is often used in the code.
|
|
*/
|
|
typedef struct {
|
|
virtual_timer_t *vt_next; /**< @brief Next timer in the delta
|
|
list. */
|
|
virtual_timer_t *vt_prev; /**< @brief Last timer in the delta
|
|
list. */
|
|
systime_t vt_delta; /**< @brief Must be initialized to -1. */
|
|
#if CH_CFG_TIMEDELTA == 0 || defined(__DOXYGEN__)
|
|
volatile systime_t vt_systime; /**< @brief System Time counter. */
|
|
#endif
|
|
#if CH_CFG_TIMEDELTA > 0 || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief System time of the last tick event.
|
|
*/
|
|
systime_t vt_lasttime;/**< @brief System time of the last
|
|
tick event. */
|
|
#endif
|
|
} virtual_timers_list_t;
|
|
|
|
/**
|
|
* @brief System data structure.
|
|
* @note This structure contain all the data areas used by the OS except
|
|
* stacks.
|
|
*/
|
|
typedef struct ch_system {
|
|
/**
|
|
* @brief Ready list header.
|
|
*/
|
|
ready_list_t rlist;
|
|
/**
|
|
* @brief Virtual timers delta list header.
|
|
*/
|
|
virtual_timers_list_t vtlist;
|
|
#if CH_CFG_USE_TM || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief Measurement calibration value.
|
|
*/
|
|
rtcnt_t measurement_offset;
|
|
#endif
|
|
#if CH_DBG_STATISTICS || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief Global kernel statistics.
|
|
*/
|
|
kernel_stats_t kernel_stats;
|
|
#endif
|
|
#if CH_DBG_ENABLED || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief Pointer to the panic message.
|
|
* @details This pointer is meant to be accessed through the debugger, it is
|
|
* written once and then the system is halted.
|
|
*/
|
|
const char *dbg_panic_msg;
|
|
#endif
|
|
#if CH_DBG_SYSTEM_STATE_CHECK || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief ISR nesting level.
|
|
*/
|
|
cnt_t dbg_isr_cnt;
|
|
/**
|
|
* @brief Lock nesting level.
|
|
*/
|
|
cnt_t dbg_lock_cnt;
|
|
#endif
|
|
#if CH_DBG_ENABLE_TRACE || defined(__DOXYGEN__)
|
|
/**
|
|
* @brief Public trace buffer.
|
|
*/
|
|
ch_trace_buffer_t dbg_trace_buffer;
|
|
#endif
|
|
} ch_system_t;
|
|
|
|
/*===========================================================================*/
|
|
/* Module macros. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* External declarations. */
|
|
/*===========================================================================*/
|
|
|
|
#if !defined(__DOXYGEN__)
|
|
extern ch_system_t ch;
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Module inline functions. */
|
|
/*===========================================================================*/
|
|
|
|
#endif /* _CHGLOBAL_H_ */
|
|
|
|
/** @} */
|