Commit Graph

15 Commits

Author SHA1 Message Date
Piotr Zięcik b6bf56c3fc power: pm_ctrl: Allow fine-grained power state locking
This commit enables fine-grained power state locking.
Now, each power state could be independently enabled or disabled.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2019-02-06 14:24:01 +01:00
Piotr Zięcik fdb62f7565 power: Make power_state enum global
Currently each SoC has to define own list of power states.
However all these definitions have to be the same, as common power
management code uses them.

This commit replaces per-soc power state list by global definition.

Signed-off-by: Piotr Zięcik <piotr.ziecik@nordicsemi.no>
2019-02-04 13:36:29 +01:00
Anas Nashif 74a74bb6b8 power: rename api sys_soc -> sys_
sys_soc is just redundant, just call APIs with sys_*.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-12-28 16:16:28 -05:00
Anas Nashif 9151fbebf2 power: rename APIs and removing leading _
Remove leading underscore from PM APIs. _ was used for internal APIs.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-12-28 16:16:28 -05:00
Anas Nashif 338ce50e16 doc: doxygen group power management APIs
Put all power management APIs under one group.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2018-12-10 20:38:09 -05:00
Ramakrishna Pallala dbf405ab21 power: Move application level API's to public header
Move the API's used by applications to include/power.h file.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2018-11-26 18:38:40 -08:00
Flavio Ceolin 67ca176754 headers: Fix headers across the project
Any word started with underscore followed by and uppercase letter or a
second underscore is a reserved word according with C99.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-09-17 15:49:26 -04:00
Kumar Gala cc334c7273 Convert remaining code to using newly introduced integer sized types
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.  This handles the remaining includes and kernel, plus
touching up various points that we skipped because of include
dependancies.  We also convert the PRI printf formatters in the arch
code over to normal formatters.

Jira: ZEP-2051

Change-Id: Iecbb12601a3ee4ea936fd7ddea37788a645b08b0
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-04-21 11:38:23 -05:00
David B. Kinder ac74d8b652 license: Replace Apache boilerplate with SPDX tag
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.

Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.

Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file.  Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.

Jira: ZEP-1457

Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 03:50:58 +00:00
Ramesh Thomas 8367056efa power_mgmt: Rename _sys_soc_resume notification disabling API
The API to disable _sys_soc_resume notification is currently
called _sys_soc_disable_wake_event_notification. This is
misleading because it is possible that the ISR from which
_sys_soc_resume is called could be from a different interrupt
with higher priority that happened before interrupts were
enabled. More accurately, it is a notification of exit from
kernel idling after pm operations.

Jira: ZEP-1271
Change-Id: I83747f2cacac1bc17f135d12f4aa4478970fc02d
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
2016-11-11 20:40:54 +00:00
Ramesh Thomas c0cd7acf34 power_mgmt: Simplify _sys_soc_resume notification
_sys_soc_resume hook is over loaded to handle to different
scenarios. It is primarily called to notify exit of kernel idling
after PM operations. It is also used to notify exit from deep sleep.
This is very confusing and also makes the implementation of the
hook function very difficult because of very different conditions
involved in the 2 different use cases. Further, users may not require
either or both use cases depending of their custom boot flow and
power state handling. To simplify, create a separate hook for the
purpose of deep sleep exit notification. Use the existing one to
only notify kernel idling exit after PM operations.

Jira: ZEP-1256
Change-Id: I96350199a0fd37f16590c8ee5302a94a3d71b8ba
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
2016-11-11 20:40:52 +00:00
Julien Delayen fec01af64a power: Update Quark SE PM layer with QMSI 1.3
QMSI 1.3 natively supports restoring the SoC and peripherals
after sleep.

The Zephyr Power Management shim layer is updated
in order to support QMSI functions.

The following functions have been added:
void _sys_soc_set_power_state(enum power_state);
void _sys_soc_power_state_post_ops(void);

In order to fully support deep sleep, the function
_sys_soc_set_power_state now support saving and
restoring CPU context and returns to the application.

_sys_soc_set_power_state function also abstracts
QMSI cpu states and enable the application to choose
between C1/C2 or C2LP states.

The QMSI power states are mapped as follows:
SYS_SOC_POWER_STATE_CPU_LPS -> power_cpu_c2lp
SYS_SOC_POWER_STATE_CPU_LPS_1 -> power_cpu_c2
SYS_SOC_POWER_STATE_CPU_LPS_2 -> power_cpu_c1
SYS_SOC_POWER_STATE_DEEP_SLEEP -> power_soc_deep_sleep
SYS_SOC_POWER_STATE_DEEP_SLEEP_1 -> power_soc_sleep

The following functions have been removed:
void _sys_soc_set_power_policy(uint32_t pm_policy);
int _sys_soc_get_power_policy(void);
FUNC_NORETURN void _sys_soc_put_deep_sleep(void);
void _sys_soc_put_low_power_state(void);
void _sys_soc_deep_sleep_post_ops(void);

Those changes are propagated to the samples.
All calls to QMSI are removed.

Jira: ZEP-1045, ZEP-993, ZEP-1047

Change-Id: I26822727985b63be0a310cc3590a3e71b8e72c8c
Signed-off-by: Julien Delayen <julien.delayen@intel.com>
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
2016-11-03 21:31:30 +00:00
Ramesh Thomas c4c0ed414b power_mgmt: Reduce complexity in handling of power hooks
Simplified some documentation, removing inconsistencies and making
it easier to understand by separating PM infrastructure areas and
soc specific components that implement the hooks.

Removed the DEVICE_SUSPEND_ONLY policy as it is redundant and
causes high complexity in the flow. It is also not practical
to use it because it was meant to be used without doing CPU or SOC
low power state operations. This means it would do device PM
operations in the ISR of the system timer used by the scheduler.
This can disrupt the scheduler time.

Added a check of a flag around the notification sent from the ISR
of the wake event and created APIs to set/clear it. This will
allow disabling the notification when not needed from
_sys_soc_suspend().

Jira: ZEP-972
Change-Id: Id7aa7d2683384eabed518d4efac446ecc84c3498
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
2016-10-05 10:05:42 +00:00
Ramesh Thomas 6d1e3cf96d doc: power_mgmt: Added Power Management documentation
Documented the Power Management subsystem which includes the
power management hook interface, device power management,
device busy status interfac and other APIs. Also included
is a guide to writing Power Management applications.

This has 2 parts.  One is the general description of the
infrastructure and the PMA writing guide which goes in the
'subsystem' area. Other is the API description that gets
automatically pulled in from the comments in the source files.
The API description goes into the section where all other
Zephyr APIs are put.

Change-Id: Id630209b23f931a8fcccb6f59428610298486743
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
2016-04-27 00:57:53 +00:00
Ramesh Thomas bb19e6f82f power_mgmt: Make names consistent with new RFC
Changed names of Kconfig flags, variables, functions, files and
return codes consistent with names used in the RFC. Updated
relevant comments to match the changes.

Origin: Original
Change-Id: Ie7941032d7ad7af61fc02928f74538745e7966e8
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-03-26 14:35:11 -04:00