Commit eee3d8f5 authored by Maureen Helm's avatar Maureen Helm Committed by Carles Cufi
Browse files

drivers: sensor: Add sensor info iterable section 



Adds an iterable section in ROM to hold constant information, such as
vendor and model name, for all enabled sensor driver instances. This
will be used by the future sensor subsystem to enumerate all available
sensors in the system.

Signed-off-by: default avatarMaureen Helm <maureen.helm@intel.com>
parent 217528f2

cmake/linker_script/common/common-rom.cmake

+4 −0
Original line number Diff line number Diff line
@@ -142,6 +142,10 @@ if(CONFIG_SETTINGS) 
  zephyr_iterable_section(NAME settings_handler_static KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)

endif()



if(CONFIG_SENSOR_INFO)

  zephyr_iterable_section(NAME sensor_info KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)

endif()



zephyr_iterable_section(NAME k_p4wq_initparam KVMA RAM_REGION GROUP RODATA_REGION SUBALIGN 4)



if(CONFIG_EMUL)

drivers/sensor/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -36,6 +36,9 @@ config SENSOR_SHELL_BATTERY 
	  in a convenient format. It makes use of a fuel gauge to read its

	  information.



config SENSOR_INFO

	bool "Sensor Info iterable section"



comment "Device Drivers"



source "drivers/sensor/adt7420/Kconfig"

include/zephyr/drivers/sensor.h

+44 −2
Original line number Diff line number Diff line
@@ -691,10 +691,50 @@ static inline int sensor_value_from_double(struct sensor_value *val, double inp) 
	return 0;

}



#ifdef CONFIG_SENSOR_INFO



struct sensor_info {

	const struct device *dev;

	const char *vendor;

	const char *model;

	const char *friendly_name;

};



#define SENSOR_INFO_INITIALIZER(_dev, _vendor, _model, _friendly_name)	\

	{								\

		.dev = _dev,						\

		.vendor = _vendor,					\

		.model = _model,					\

		.friendly_name = _friendly_name,			\

	}



#define SENSOR_INFO_DEFINE(name, ...)					\

	static const STRUCT_SECTION_ITERABLE(sensor_info, name) =	\

		SENSOR_INFO_INITIALIZER(__VA_ARGS__)



#define SENSOR_INFO_DT_NAME(node_id)					\

	_CONCAT(__sensor_info, DEVICE_DT_NAME_GET(node_id))



#define SENSOR_INFO_DT_DEFINE(node_id)					\

	SENSOR_INFO_DEFINE(SENSOR_INFO_DT_NAME(node_id),		\

			   DEVICE_DT_GET(node_id),			\

			   DT_NODE_VENDOR_OR(node_id, NULL),		\

			   DT_NODE_MODEL_OR(node_id, NULL),		\

			   DT_PROP_OR(node_id, friendly_name, NULL))	\



#else



#define SENSOR_INFO_DEFINE(name, ...)

#define SENSOR_INFO_DT_DEFINE(node_id)



#endif /* CONFIG_SENSOR_INFO */



/**

 * @brief Like DEVICE_DT_DEFINE() with sensor specifics.

 *

 * @details Defines a device which implements the sensor API.

 * @details Defines a device which implements the sensor API. May define an

 * element in the sensor info iterable section used to enumerate all sensor

 * devices.

 *

 * @param node_id The devicetree node identifier.

 *
@@ -721,7 +761,9 @@ static inline int sensor_value_from_double(struct sensor_value *val, double inp) 
				api_ptr, ...)				\

	DEVICE_DT_DEFINE(node_id, init_fn, pm_device,			\

			 data_ptr, cfg_ptr, level, prio,		\

			 api_ptr, __VA_ARGS__);

			 api_ptr, __VA_ARGS__);				\

									\

	SENSOR_INFO_DT_DEFINE(node_id);



/**

 * @brief Like SENSOR_DEVICE_DT_DEFINE() for an instance of a DT_DRV_COMPAT

include/zephyr/linker/common-rom/common-rom-misc.ld

+4 −0
Original line number Diff line number Diff line
@@ -8,6 +8,10 @@ 
	ITERABLE_SECTION_ROM(settings_handler_static, 4)

#endif



#if defined(CONFIG_SENSOR_INFO)

	ITERABLE_SECTION_ROM(sensor_info, 4)

#endif



#if defined(CONFIG_EMUL)

	SECTION_DATA_PROLOGUE(emulators_section,,)

	{

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