Added device power management hook infrastructure. Added
DEVICE_INIT_PM and SYS_INIT_PM macros that creates device
structures with the supplied device_ops structure containing
the hooks.
Added example support in gpio_dw driver. Updated the sample
app and tested using LPS and Device Suspend Only policies.
Change-Id: I2fe347f8d8fd1041d8318e02738990deb8c5d68e
Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
This is to be used by subsystem that don't really want to create a
device but rather only want to be initialized automatically during the
kernel init sequence. It is just a wrapper around DEVICE_INIT(), and
thus still uses a device object, but it hides that fact and can be
replaced in the future without changing its model.
It can be used when a device created does not have objects associated
with it, but only an init function, and also when the device name
(DEVICE_INIT(<dev_name>, ...) does not matter.
Change-Id: I5488f430a6fb757cdcb499ef352775dc67aa0565
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Rename them to DEVICE_NAME_GET and DEVICE_GET to fit in the 'device'
namespace.
Change-Id: I407a7f284ed4d1c071961b46615eea859c2e825f
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Rename it to DEVICE_DEFINE() so that it fits in the 'device' namespace.
Change-Id: I3af3a39cf9154359b31d22729d0db9f710cd202b
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Rename it to DEVICE_INIT_CONFIG_DEFINE(), because (a) it was not fitting
in any namespace and (b) it is not used to declare, but rather define a
object.
Change-Id: I1da5822f06b85a9fb024b5b184afd0ccc01012ec
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Adds extern "C" { } blocks to header files so that they can be
safely used by C++ source files.
Change-Id: Ia4db0c36a5dac5d3de351184a297d2af0df64532
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
The new SYS_GET_DEVICE_NAME macro can be used in combination with
SYS_GET_DEVICE to obtain an external reference to a static device
object, e.g.:
extern struct device SYS_GET_DEVICE_NAME(my_device_name);
struct device* dev = SYS_GET_DEVICE(my_device_name);
dev is here set at compile time.
Change-Id: I9094925c685177f01e0cef194ec382ad49658f9d
Signed-off-by: Fabien Chereau <fabien.chereau@intel.com>
The _PASTE and _PASTE2 macros are relocated from init.h (device handling) to
toolchain/common.h for better reuse.
_PASTE and PASTE_2 macro are renamed to _CONCAT and _DO_CONCAT.
These names are more descriptive.
Change-Id: Ie2f5b0cba1f1179eb3fb5ec00236a75a73267f98
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Put initialization priorities as device driver Kconfig
parameter.
Initialization priority value for each platform is defined
in the platform Kconfig file.
Drivers and platform code use SYS_DEFINE_DEVICE to add
and initialization function.
Change-Id: I2f4f3c7370dac02408a1b50a0a1bade8b427a282
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Allow initialization priority be defined C macros.
Change-Id: I6155523d983efe943fcdd9ec6b49d7396b904ab0
Signed-off-by: Dmitriy Korovkin <dmitriy.korovkin@windriver.com>
Add a macro to retrieve the device structure for a config structure by
name. This avoids the very error prone activity of the developer
having to *know* the way the internal object is named.
Change-Id: I1d7857d5aad6dfd4b1b46f63b946aad1ae3a6dc4
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Introduces the SYS_DEFINE_DEVICE() macro, which supports 5 distinct
levels of device initialization and 100 priorities within each level.
Note: The existing init macros (e.g. nano_early_init()) have been
adapted to utilize the enhanced initialization model, but will
eventually be retired.
Change-Id: If677029d8b711a3fae9b2f32b5470cd97d19aeda
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Gets rid of the trailing initialization level character from the
name of the device variable generated by the macro, since it serves
no useful purpose. (The linker scripts place the various initialization
sections in ascending order based on the name of the section, so there
is no need to embed the initialization level in the variable name itself.)
Change-Id: I56bb79a513b8f77fb1f3fbaccec14454c2520772
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Change all the Intel and Wind River code license from BSD-3 to Apache 2.
Change-Id: Id8be2c1c161a06ea8a0b9f38e17660e11dbb384b
Signed-off-by: Javier B Perez Hernandez <javier.b.perez.hernandez@linux.intel.com>
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
There has been some confusion around the usage model of the init
system. Add a comment block to hopefully limit the confusion. This
should not be construed to replace the documentation that has yet to
be written for the init subsystem.
Change-Id: I4df67f056b29b88ce6f0b8c2376deaf022cb8d84
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
There are devices that need are part of the architecture core the need
to be initialized prior to devices that are integrated around a core
to make up a complete SOC. Namely the interrupt controller in the SOC
must be configured in order to allow the integrated IP blocks drivers
to initialize correctly.
Change-Id: I0a91e08f98516a7b7dd402ffc6494a071f1326b2
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
This macro is legacy from an early implementation of the init system
before the pure level was split into early and late phases remove it
now to avoid confusion going forward.
Change-Id: I6720874c840c9e14888fd6f411a8182e7420ca29
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Split the pure init level into two phases this allows for easier
migration of the nano kernel init process without resorting to naming
or link order to force the ordering of functions at pure init
time. The need for change was discovered while moving the system
timers to be initialized by the init system. The base timer driver
(eg. HPET) must be initialised prior to the system clock being enabled
both of which need to happen before nano-kernel init.
Change-Id: I7a2994965e48a891a78268080113ac8fccceb261
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Macro definitions must not have trailing semi-colons. Depending upon the
compiler, trailing semi-colons may result in a warning when a user invokes
those macros AND adds their own trailing semi-colon.
Change-Id: I34e8da2b0ce7c21ce67e84fab75ea3edefe19cfe
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
Change all occurances of /*! to /** to match javadoc
style.
Change-Id: I3a759d34e0e928216f61252682266e64c5b875f8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Using the symbolic names in the macros fails to create the correct
object. Likely due to the order of evaluation by cpp. Back out this
change.
Change-Id: I3948228ecdab3c1087faf6e9dc9f25455ed63e7a
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Add the call sites for the various init levels defined by the init
system.
These call sites are noops if there is no init proceedure registered
at a given init level.
pre_app_init has been renamed to app_early_init and late_initconfig to
app_late_init to better reflect the ordering and intended use of these
init levels
Change-Id: I71e38d936a97da8fe163f4b7cf0ce6725f1c903e
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Allow the delevoper to specify the address of the driver instance data
object at build time.
Change-Id: I6b311cfc4d38b3425f6283d87d2da65aceb42faa
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Add infrastructure support having multiple instances of a driver
configured into the system each with its own compile time
configuration information.
Change-Id: I1e447af18311139b43f74fe0439483ccd132b63f
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Ramesh Thomas