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in repository https://gitbox.apache.org/repos/asf/mynewt-core.git
commit 54f08cafd0e6ae475c6535371db830d7e13c6405
Author: Jerzy Kasenberg <jerzy.kasenb...@codecoup.pl>
AuthorDate: Fri Feb 26 14:16:24 2021 +0100
hw/bus: Allow automatic power mode from syscfg
Bus driver with BUS_PM enabled was defaulting to manual
mode. User code still was required to call bus_dev_set_pm
function to switch to automatic mode.
Now BUS_PM_MODE configuration value is provided that allows
starting in automatic mode from the beginning.
Automatic mode is also chosen as default mode when BUS_PM is enabled.
Inactivity timeout (time after which bus goes to power save mode)
now can be specified in syscfg with BUS_PM_INACTIVITY_TMO value.
---
hw/bus/src/bus.c | 4 ++++
hw/bus/syscfg.yml | 16 ++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/hw/bus/src/bus.c b/hw/bus/src/bus.c
index 265cf02..ce5188a 100644
--- a/hw/bus/src/bus.c
+++ b/hw/bus/src/bus.c
@@ -238,6 +238,10 @@ bus_dev_init_func(struct os_dev *odev, void *arg)
/* XXX allow custom eventq */
os_callout_init(&bdev->inactivity_tmo, os_eventq_dflt_get(),
bus_dev_inactivity_tmo_func, odev);
+ bdev->pm_mode = MYNEWT_VAL_CHOICE(BUS_PM_MODE, AUTO) ? BUS_PM_MODE_AUTO :
BUS_PM_MODE_MANUAL;
+ if (MYNEWT_VAL_CHOICE(BUS_PM_MODE, AUTO)) {
+ bdev->pm_opts.pm_mode_auto.disable_tmo =
MYNEWT_VAL(BUS_PM_INACTIVITY_TMO);
+ }
#endif
#if MYNEWT_VAL(BUS_STATS)
diff --git a/hw/bus/syscfg.yml b/hw/bus/syscfg.yml
index 0303470..f9ac0e6 100644
--- a/hw/bus/syscfg.yml
+++ b/hw/bus/syscfg.yml
@@ -37,6 +37,22 @@ syscfg.defs:
allows for some automatic management of bus device state instead of
implementing this manually.
value: 0
+ BUS_PM_MODE:
+ description: >
+ Default power management mode for bus drivers. When set to AUTO
+ bus drivers will take care of turning off controllers when they
+ are not needed for some time.
+ When set to MANUAL bus driver will not enable/disable controllers
+ leaving it to the application code.
+ This setting is only valid when BUS_PM == 1.
+ choices:
+ - AUTO
+ - MANUAL
+ value: AUTO
+ BUS_PM_INACTIVITY_TMO:
+ description: >
+ Default inactivity time after which bus controller will be
disabled (in ticks).
+ value: 1
BUS_STATS:
description: >
