michaelh/zephyr
1
0
Fork 0
Code Releases Activity

device: iterable supported devices

Browse source 
Add supported device information to the device `handles` array. This
enables API's to iterate over supported devices for power management
purposes.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2021-08-20 18:31:18 +10:00 • committed by Carles Cufí
commit 106f710c7d
2 changed files with 70 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

23
include/device.h
View file

@ -683,6 +683,26 @@ static inline bool device_is_ready(const struct device *dev)
* in a distinct pass1 section (which will be replaced by
* postprocessing).
*
* Before processing in gen_handles.py, the array format is:
* {
* DEVICE_ORDINAL (or DEVICE_HANDLE_NULL if not a devicetree node),
* List of devicetree dependency ordinals (if any),
* DEVICE_HANDLE_SEP,
* List of injected dependency ordinals (if any),
* DEVICE_HANDLE_SEP,
* List of devicetree supporting ordinals (if any),
* }
*
* After processing in gen_handles.py, the format is updated to:
* {
* List of existing devicetree dependency handles (if any),
* DEVICE_HANDLE_SEP,
* List of injected dependency ordinals (if any),
* DEVICE_HANDLE_SEP,
* List of existing devicetree support handles (if any),
* DEVICE_HANDLE_NULL
* }
*
* It is also (experimentally) necessary to provide explicit alignment
* on each object. Otherwise x86-64 builds will introduce padding
* between objects in the same input section in individual object
@ -711,6 +731,9 @@ BUILD_ASSERT(sizeof(device_handle_t) == 2, "fix the linker scripts");
)) \
DEVICE_HANDLE_SEP, \
Z_DEVICE_EXTRA_HANDLES(__VA_ARGS__) \
DEVICE_HANDLE_SEP, \
COND_CODE_1(DT_NODE_EXISTS(node_id), \
(DT_SUPPORTS_DEP_ORDS(node_id)), ()) \
};
#define Z_DEVICE_DEFINE_INIT(node_id, dev_name) \