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pm: device: create struct pm_device initializer

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Create a utility macro to initialize struct pm_device. The initializer
is kept in the pm/device.h header.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2021-08-26 17:26:31 +02:00 • committed by Anas Nashif
commit a89cc157af
2 changed files with 22 additions and 18 deletions
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19
include/device.h
View file

@ -831,27 +831,10 @@ BUILD_ASSERT(sizeof(device_handle_t) == 2, "fix the linker scripts");
(&DEVICE_NAME_GET(dev_name)), level, prio)
#ifdef CONFIG_PM_DEVICE
/* Use of DT_PROP_OR here is because we cant assume that 'wakeup-source`
* will be a defined property for the binding of the devicetree node that
* is associated with the device
*/
#define Z_DEVICE_STATE_DEFINE(node_id, dev_name) \
static struct device_state Z_DEVICE_STATE_NAME(dev_name) \
__attribute__((__section__(".z_devstate"))) = { \
.pm = { \
.usage = 0U, \
.lock = Z_MUTEX_INITIALIZER( \
Z_DEVICE_STATE_NAME(dev_name).pm.lock), \
.condvar = Z_CONDVAR_INITIALIZER( \
Z_DEVICE_STATE_NAME(dev_name).pm.condvar),\
.state = PM_DEVICE_STATE_ACTIVE, \
.flags = ATOMIC_INIT(COND_CODE_1( \
DT_NODE_EXISTS(node_id), \
(DT_PROP_OR( \
node_id, wakeup_source, 0)), \
(0)) << \
PM_DEVICE_FLAGS_WS_CAPABLE), \
}, \
.pm = Z_PM_DEVICE_INIT(Z_DEVICE_STATE_NAME(dev_name), node_id) \
};
#define Z_DEVICE_DEFINE_PM_INIT(dev_name, pm_control_fn) \

21
include/pm/device.h
View file

@ -114,6 +114,27 @@ struct pm_device {
struct k_condvar condvar;
};
/**
* @brief Utility macro to initialize #pm_device.
*
* @note DT_PROP_OR is used to retrieve the wakeup_source property because
* it may not be defined on all devices.
*
* @param obj Name of the #pm_device structure being initialized.
* @param node_id Devicetree node for the initialized device (can be invalid).
*/
#define Z_PM_DEVICE_INIT(obj, node_id) \
{ \
.usage = 0U, \
.lock = Z_MUTEX_INITIALIZER(obj.pm.lock), \
.condvar = Z_CONDVAR_INITIALIZER(obj.pm.condvar), \
.state = PM_DEVICE_STATE_ACTIVE, \
.flags = ATOMIC_INIT(COND_CODE_1( \
DT_NODE_EXISTS(node_id), \
(DT_PROP_OR(node_id, wakeup_source, 0)),\
(0)) << PM_DEVICE_FLAGS_WS_CAPABLE), \
}
/**
* @brief Device power management control function callback.
*