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Commit 51f2b7e2 authored by shaoxing's avatar shaoxing Committed by zhaochen
Browse files

drivers: input: vl53l0x: Add TOF Vl53l0x sensor for APQ8009 Robotics 



This change add STM vl53l0x sensor driver for APQ8009 Robotics.

VL53L0X is a ranging and gesture detection sensor through
i2c in 400kb/s.
Icm20602 driver can  push the data to userspace
by sysfs which is calibrate by the driver application.

Change-Id: I1d248d71397ec0e1b551419bf58cbe22d2dfff7f
From: FMenziesENG <f.menzies.gb@ieee.org>
Signed-off-by: default avatarFMenziesENG <f.menzies.gb@ieee.org>
[zhaochen@codeaurora.org: Add API to userspace through sysfs]
Signed-off-by: default avatarzhaochen <zhaochen@codeaurora.org>
parent 672dfcfa

Documentation/devicetree/bindings/input/misc/stmvl53l0x.txt

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STM VL53L0X Time-of-Flight ranging and gesture detection sensor driver



Description:



The VL53L0X is a new generation Time-of-Flight

(ToF) laser-ranging module housed in the

smallest package on the market today, providing

accurate distance measurement whatever the

target reflectances unlike conventional

technologies. It can measure absolute distances

up to 2m, setting a new benchmark in ranging

performance levels, opening the door to various

new applications.

The VL53L0X integrates a leading-edge SPAD

array (Single Photon Avalanche Diodes) and

embeds ST’s second generation FlightSenseTM

patented technology.

The VL53L0X’s 940 nm VCSEL emitter (Vertical

Cavity Surface-Emitting Laser), is totally invisible

to the human eye, coupled with internal physical

infrared filters, it enables longer ranging

distances, higher immunity to ambient light, and

better robustness to cover glass optical crosstalk.



Required properties:



 - compatible		: Should be "st,stmvl53l0".

 - reg			: i2c slave address of the device.



Example:

	i2c@f9925000 {

		vl53l0x@52 {

			compatible = "st,stmvl53l0";

			reg = <0x52>;

		};

	};

drivers/input/misc/Kconfig

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@@ -372,6 +372,18 @@ config INPUT_KEYCHORD 
	  To compile this driver as a module, choose M here: the

	  module will be called keychord.





config STMVL53L0X

        tristate "STM VL53L0X Ranging Sensor"

        depends on I2C

        help

	  Say Y here if you want to enable the key chord driver

          This is a Time-of-Flight (ToF) laser-ranging sensor, provide

	  the distance from obstacle.



	  To compile this driver as a module, choose M here: the module will

	  be called vl5310x.



config INPUT_KEYSPAN_REMOTE

	tristate "Keyspan DMR USB remote control"

	depends on USB_ARCH_HAS_HCD

drivers/input/misc/Makefile

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@@ -85,3 +85,4 @@ ifeq ($(CONFIG_BOSCH_BMA2X2_ENABLE_INT2),y) 
endif

obj-$(CONFIG_INPUT_IDEAPAD_SLIDEBAR)	+= ideapad_slidebar.o

obj-$(CONFIG_INPUT_PIXART_OTS_PAT9125_SWITCH)	+= ots_pat9125/

obj-$(CONFIG_STMVL53L0X)	+= vl53l0x/

drivers/input/misc/vl53l0x/Makefile

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#

# Makefile for the vl53L0X drivers.

#



# Each configuration option enables a list of files.

FEATURE_USE_CCI := false

#FEATURE_USE_CCI := true



ifeq ($(FEATURE_USE_CCI), true)

ccflags-y	+= -Idrivers/input/misc/vl53l0x/inc -DCAMERA_CCI

else

ccflags-y	+= -Idrivers/input/misc/vl53l0x/inc -DSTM_TEST

endif



ccflags-y += -Idrivers/media/platform/msm/camera_v2/sensor/io

ccflags-y += -Idrivers/media/platform/msm/camera_v2

ccflags-y += -Idrivers/media/platform/msm/camera_v2/common

ccflags-y += -Idrivers/media/platform/msm/camera_v2/sensor/cci

obj-$(CONFIG_STMVL53L0X)			+= stmvl53l0x.o

stmvl53l0x-objs				:= stmvl53l0x_module.o stmvl53l0x_module-i2c.o stmvl53l0x_module-cci.o src/vl53l0x_api_calibration.o src/vl53l0x_api_core.o src/vl53l0x_api_ranging.o src/vl53l0x_api_strings.o src/vl53l0x_api.o src/vl53l0x_platform.o src/vl53l0x_i2c_platform.o src/vl53l0x_port_i2c.o

drivers/input/misc/vl53l0x/inc/vl53l0x_api.h

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File added.

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