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Updated AVR os-less for new osal_vt 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10128 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
Fabio Utzig 2017-03-23 13:20:48 +00:00
parent c75384d31a
commit 5acf110655
2 changed files with 1 additions and 162 deletions
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115
os/hal/osal/os-less/AVR/osal.c
View File

@ -23,6 +23,7 @@
*/
#include "osal.h"
#include "osal_vt.h"
/*===========================================================================*/
/* Module local definitions. */
@ -39,11 +40,6 @@
*/
const char *osal_halt_msg;
/**
* @brief Virtual timers delta list header.
*/
virtual_timers_list_t vtlist;
/*===========================================================================*/
/* Module local types. */
/*===========================================================================*/
@ -56,115 +52,6 @@ virtual_timers_list_t vtlist;
/* Module local functions. */
/*===========================================================================*/
/**
* @brief Timers initialization.
*
* @notapi
*/
static void vtInit(void) {
/* Virtual Timers initialization.*/
vtlist.vt_next = vtlist.vt_prev = (void *)&vtlist;
vtlist.vt_time = (systime_t)-1;
vtlist.vt_systime = 0;
}
/**
* @brief Returns @p TRUE if the specified timer is armed.
*
* @param[out] vtp the @p virtual_timer_t structure pointer
*
* @notapi
*/
static bool vtIsArmedI(virtual_timer_t *vtp) {
return vtp->vt_func != NULL;
}
/**
* @brief Virtual timers ticker.
* @note The system lock is released before entering the callback and
* re-acquired immediately after. It is callback's responsibility
* to acquire the lock if needed. This is done in order to reduce
* interrupts jitter when many timers are in use.
*
* @notapi
*/
static void vtDoTickI(void) {
vtlist.vt_systime++;
if (&vtlist != (virtual_timers_list_t *)vtlist.vt_next) {
virtual_timer_t *vtp;
--vtlist.vt_next->vt_time;
while (!(vtp = vtlist.vt_next)->vt_time) {
vtfunc_t fn = vtp->vt_func;
vtp->vt_func = (vtfunc_t)NULL;
vtp->vt_next->vt_prev = (void *)&vtlist;
(&vtlist)->vt_next = vtp->vt_next;
osalSysUnlockFromISR();
fn(vtp->vt_par);
osalSysLockFromISR();
}
}
}
/**
* @brief Enables a virtual timer.
* @note The associated function is invoked from interrupt context.
*
* @param[out] vtp the @p virtual_timer_t structure pointer
* @param[in] time 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
*
* @notapi
*/
static void vtSetI(virtual_timer_t *vtp, systime_t time,
vtfunc_t vtfunc, void *par) {
virtual_timer_t *p;
vtp->vt_par = par;
vtp->vt_func = vtfunc;
p = vtlist.vt_next;
while (p->vt_time < time) {
time -= p->vt_time;
p = p->vt_next;
}
vtp->vt_prev = (vtp->vt_next = p)->vt_prev;
vtp->vt_prev->vt_next = p->vt_prev = vtp;
vtp->vt_time = time;
if (p != (void *)&vtlist)
p->vt_time -= time;
}
/**
* @brief Disables a Virtual Timer.
* @note The timer MUST be active when this function is invoked.
*
* @param[in] vtp the @p virtual_timer_t structure pointer
*
* @notapi
*/
static void vtResetI(virtual_timer_t *vtp) {
if (vtp->vt_next != (void *)&vtlist)
vtp->vt_next->vt_time += vtp->vt_time;
vtp->vt_prev->vt_next = vtp->vt_next;
vtp->vt_next->vt_prev = vtp->vt_prev;
vtp->vt_func = (vtfunc_t)NULL;
}
static void callback_timeout(void *p) {
osalSysLockFromISR();
osalThreadResumeI((thread_reference_t *)p, MSG_TIMEOUT);

48
os/hal/osal/os-less/AVR/osal.h
View File

@ -165,54 +165,6 @@ typedef int16_t msg_t;
*/
typedef uint32_t systime_t;
/**
* @brief Type of a Virtual Timer callback function.
*/
typedef void (*vtfunc_t)(void *);
/**
* @brief Type of a Virtual Timer structure.
*/
typedef struct virtual_timer virtual_timer_t;
/**
* @brief Virtual timers list header.
* @note The content of this structure is not part of the API and should
* not be relied upon. Implementers may define this structure in
* an entirely different way.
* @note The delta 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 timers
list. */
virtual_timer_t *vt_prev; /**< @brief Last timer in the timers
list. */
systime_t vt_time; /**< @brief Must be initialized to -1. */
volatile systime_t vt_systime; /**< @brief System Time counter. */
} virtual_timers_list_t;
/**
* @extends virtual_timers_list_t
*
* @brief Virtual Timer descriptor structure.
* @note The content of this structure is not part of the API and should
* not be relied upon. Implementers may define this structure in
* an entirely different way.
*/
struct virtual_timer {
virtual_timer_t *vt_next; /**< @brief Next timer in the timers
list. */
virtual_timer_t *vt_prev; /**< @brief Previous timer in the timers
list. */
systime_t vt_time; /**< @brief Time delta before timeout. */
vtfunc_t vt_func; /**< @brief Timer callback function
pointer. */
void *vt_par; /**< @brief Timer callback function
parameter. */
};
/**
* @brief Type of realtime counter.
*/