Commits on Jun 9, 2023

1. sensing: Adding Sensing Subsystem API …

   This API introduced a new sensing subsystem, which is a high level
   sensor framework inside the OS user space service layer.
   It's a framework focus on sensor fusion, clients arbitration, sampling,
   timing, scheduling and sensor based power management.
   
   It's key concepts including physical sensor and virtual sensor objects,
   and a scheduling framework reflects sensor objects' reporting relationship.
   Physical sensors not depends on any other sensor objects for input, and
   will directly interact with existing zephyr sensor device drivers.
   Virtual sensors rely on other sensor objects (physical or virtual) as
   report inputs.
   
   The sensing subsystem relies on existing zephyr sensor device APIs or V2
   zephyr sensor device APIs (zephyrproject-rtos#44098).
   
   So it can leverage current existing zephyr sensor device drivers (100+).
   And it's configurable, so, for some low cost IoT devices, may not need an
   advanced sensor framework, but just need access some simple sensor
   devices,can not configure and build this sensor subsystem, but just use
   the exiting zephyr sensor device APIs to save memory resources.
   
   Since the sensing subsystem is separated from device driver layer or
   kernel space and could support various customizations and sensor
   algorithms in user space with virtual sensor concepts. The existing
   sensor device driver can focus on low layer device side works, can keep
   simple as much as possible, just provide device HW abstraction and
   operations etc. This is very good for system stability.
   
   The sensing subsystem is decoupled with any sensor expose/transfer
   protocols, the target is to support various up-layer frameworks and
   Applications with different sensor expose/transfer protocols,
   such as CHRE, HID sensors Applications, MQTT sensor Applications
   according different products requirements. Or even support multiple
   Applications with different up-layer sensor protocols at the same time
   with it's multiple clients support design. For example can support CHRE
   and other normal zephyr sensor application (can use HID etc) at
   the same time.
   
   Signed-off-by: Hebo Hu <hebo.hu@intel.com>
   Signed-off-by: Guangfu Hu <guangfu.hu@intel.com>

   

   huhebo authored and ghu0510 committed Jun 9, 2023
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2. doc: Add documents for Sensing Subsystem …

   Add documents for sensing subsystem.
   
   Signed-off-by: Hebo Hu <hebo.hu@intel.com>

   

   huhebo authored and ghu0510 committed Jun 9, 2023
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3. sensing: add Sensing Subsystem skeleton …

   Add Sensing Subsystem skeleton.
   
   Signed-off-by: Guangfu Hu <guangfu.hu@intel.com>
   Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>

   

   lixuzha authored and ghu0510 committed Jun 9, 2023
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4. sensing: phy_3d_sensor: add phy_3d_sensor skeleton …

   Add the sensor phy_3d_sensor skeleton in Sensing Subsystem.
   
   Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>

   

   lixuzha authored and ghu0510 committed Jun 9, 2023
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5. sensing: initial sensor list and enumerate each sensor …

   Implement sensing_init():
   	1) create sensors from device tree
   	2) sequence sensors following node dependency ordering rule generated by
   	   Zephyr DTS
   	3) initial each sensor, includes:
   		a) creating sensor connection between reporter and client,
   		b) calling sensor init callback,
   		c) setting sensor state
   Implement sensing_open_sensor():
   	1) malloc connection from reporter to application
   	2) bind connection
   Implement sensing_close_sensr():
   	1) unbind connection
   	2) free connection from reporter to application
   Implement sensing_set_config():
   	1) call set_interval
   	2) cann set_sensitivity
   Implement sensing_get_config():
   	1) call get_interval
   	2) call get_sensitivity
   
   Signed-off-by: Guangfu Hu <guangfu.hu@intel.com>

   

   ghu0510 committed Jun 9, 2023
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6. samples: sensing: add a simple sensing subsystem app …

   Add a simple sensing subsystem application.
   
   Signed-off-by: Guangfu Hu <guangfu.hu@intel.com>

   

   ghu0510 committed Jun 9, 2023
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7. MAINTAINERS: Add maintainer and collaborator for Sensing Subsystem …

   Add lixuzha, ghu0510, qianruh as maintainer and collaborators for
   the Sensing Subsystem.
   
   Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>

   

   lixuzha authored and ghu0510 committed Jun 9, 2023
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8. CODEOWNERS: Add code owners for Sensing Subsystem …

   Add lixuzha, ghu0510, qianruh for the Sensor Subsystem.
   
   Signed-off-by: Zhang Lixu <lixu.zhang@intel.com>

   

   lixuzha authored and ghu0510 committed Jun 9, 2023
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