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power: add pm_stay_timeout API

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Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd 2022-06-10 20:34:20 +08:00 committed by Xiang Xiao
parent 479689eae9
commit f0a1a2dc0b
3 changed files with 118 additions and 0 deletions
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1
drivers/power/pm.h
View File

@ -58,6 +58,7 @@ struct pm_domain_s
/* The power state lock count */
uint16_t stay[PM_COUNT];
struct wdog_s wdog[PM_COUNT];
/* Auto update or not */

93
drivers/power/pm_activity.c
View File

@ -35,6 +35,30 @@
#ifdef CONFIG_PM
/****************************************************************************
* Private Functions
****************************************************************************/
static void pm_stay_normal_cb(wdparm_t arg)
{
pm_relax(arg, PM_NORMAL);
}
static void pm_stay_idle_cb(wdparm_t arg)
{
pm_relax(arg, PM_IDLE);
}
static void pm_stay_standby_cb(wdparm_t arg)
{
pm_relax(arg, PM_STANDBY);
}
static void pm_stay_sleep_cb(wdparm_t arg)
{
pm_relax(arg, PM_SLEEP);
}
/****************************************************************************
* Public Functions
****************************************************************************/
@ -160,6 +184,75 @@ void pm_relax(int domain, enum pm_state_e state)
pm_auto_updatestate(domain);
}
/****************************************************************************
* Name: pm_stay_timeout
*
* Description:
* This function is called by a device driver to indicate that it is
* performing meaningful activities (non-idle), needs the power at kept
* last the specified level.
* And this will be timeout after time (ms), menas auto pm_relax
*
* Input Parameters:
* domain - The domain of the PM activity
* state - The state want to stay.
* ms - The timeout value ms
*
* Returned Value:
* None.
*
* Assumptions:
* This function may be called from an interrupt handler.
*
****************************************************************************/
void pm_stay_timeout(int domain, enum pm_state_e state, int ms)
{
FAR struct pm_domain_s *pdom;
FAR struct wdog_s *wdog;
wdentry_t wdentry;
irqstate_t flags;
DEBUGASSERT(domain >= 0 && domain < CONFIG_PM_NDOMAINS);
DEBUGASSERT(state < PM_COUNT);
pdom = &g_pmglobals.domain[domain];
wdog = &pdom->wdog[state];
flags = pm_lock(domain);
if (!WDOG_ISACTIVE(wdog))
{
DEBUGASSERT(pdom->stay[state] < UINT16_MAX);
pdom->stay[state]++;
}
switch (state)
{
case PM_NORMAL:
wdentry = pm_stay_normal_cb;
break;
case PM_IDLE:
wdentry = pm_stay_idle_cb;
break;
case PM_STANDBY:
wdentry = pm_stay_standby_cb;
break;
default:
wdentry = pm_stay_sleep_cb;
break;
}
if (TICK2MSEC(wd_gettime(wdog)) < ms)
{
wd_start(wdog, MSEC2TICK(ms), wdentry, domain);
}
pm_unlock(domain, flags);
pm_auto_updatestate(domain);
}
/****************************************************************************
* Name: pm_staycount
*

24
include/nuttx/power/pm.h
View File

@ -499,6 +499,30 @@ void pm_stay(int domain, enum pm_state_e state);
void pm_relax(int domain, enum pm_state_e state);
/****************************************************************************
* Name: pm_stay_timeout
*
* Description:
* This function is called by a device driver to indicate that it is
* performing meaningful activities (non-idle), needs the power at kept
* last the specified level.
* And this will be timeout after time (ms), menas auto pm_relax
*
* Input Parameters:
* domain - The domain of the PM activity
* state - The state want to stay.
* ms - The timeout value ms
*
* Returned Value:
* None.
*
* Assumptions:
* This function may be called from an interrupt handler.
*
****************************************************************************/
void pm_stay_timeout(int domain, enum pm_state_e state, int ms);
/****************************************************************************
* Name: pm_staycount
*