72 lines
3.1 KiB
Plaintext
72 lines
3.1 KiB
Plaintext
AP3426 3-in-1 digital ALS+PS+IRLED module
|
|
|
|
AP3426 is a module integrated with a digital ambient light sensor, a proximity
|
|
sensor, and an IR LED in a single package. It provides multiple gain ambient
|
|
light detection as well as external object distance detection. It can be
|
|
connected to host processor via i2c.
|
|
|
|
Required properties:
|
|
- compatible : Should be "di,ap3426".
|
|
- reg : i2c slave address of this device.
|
|
- vdd-supply : Analog power supply needed to power up this device.
|
|
- vio-supply : Digital IO power supply needed for IO and i2c.
|
|
- interrupt-parent : The interrupt controller this device connected to.
|
|
- interrupts : L/P sample interrupt to indicate new data ready.
|
|
- pinctrl-names : pinctrl configuration names of this device. Should be "default" and "sleep".
|
|
- pinctrl-0 : Should specify pin control groups used for this sensor.
|
|
- pinctrl-1 : Should specify pin control groups used for this sensor.
|
|
- di,irq-gpio : GPIO pin for interrupt of this device.
|
|
- di,als-cal : Coefficient to calibrate this device for specific board.
|
|
- di,als-gain : Default als gain configuration for the device. 0 for 32768,
|
|
1 for 8192, 2 for 2048 and 3 for 512.
|
|
- di,als-persist : Interrupt persist configuration for the device. It indicates
|
|
how much conversion cycles will trigger ALS interrupt. The maximum value
|
|
is 63.
|
|
- di,ps-led-driver : Specifies proximity LED driver ratio based on 140mA of this device.
|
|
0 for 16.7%, 1 for 33.3%, 2 for 66.7% and 3 for 100%.
|
|
- di,ps-mean-time : Configures response time of proximity detection cycle. 0 for conversion
|
|
time 5ms, 1 for conversion time 9.6ms, 2 for conversion time 14.1ms and 3 for
|
|
conversion time 18.7ms.
|
|
- di,ps-integrated-time: Selects the duration at which the device's ADC will sample the
|
|
photodiode current signal. The maximum value is 63.
|
|
|
|
|
|
Optional properties:
|
|
- di,ps-distance-table : Calibrated ADC value of proximity sensor to indicate the distance of
|
|
the object in centimeter. The value in this table should in descend order and the
|
|
maximum value is 1023. Use default value if not exist.
|
|
- di,als-sensitivity : Ambient light sensitivity in lux. This array configures how much light
|
|
intensity change will trigger a light sensor event. The array size should be 4.
|
|
- di,wakeup-threshold : This value configures the threshold in centimeter that can wake up
|
|
SoC when system is suspended. This value should between 0 and
|
|
ARRAY_SIZE(di,ps-distance-table).
|
|
|
|
Example:
|
|
|
|
i2c@78b5000 { /* BLSP1 QUP1 */
|
|
di@1e {
|
|
compatible = "di,ap3426";
|
|
reg = <0x1e>;
|
|
vdd-supply = <&pm8909_l17>;
|
|
vio-supply = <&pm8909_l6>;
|
|
interrupt-parent = <&msm_gpio>;
|
|
interrupts = <94 0x2002>;
|
|
pinctrl-names = "default","sleep";
|
|
pinctrl-0 = <&ap3426_default>;
|
|
pinctrl-1 = <&ap3426_sleep>;
|
|
di,irq-gpio = <&msm_gpio 94 0x2002>;
|
|
di,als-cal = <6>;
|
|
di,als-gain = <0>;
|
|
di,als-persist = <1>;
|
|
di,ps-gain = <1>;
|
|
di,ps-persist = <2>;
|
|
di,ps-led-driver = <3>;
|
|
di,ps-mean-time = <0>;
|
|
di,ps-integrated-time = <0>;
|
|
di,ps-distance-table = <887 282 111 78 53 46>;
|
|
di,als-sensitivity = <200 40 10 1>;
|
|
di,wakeup-threshold = <4>;
|
|
};
|
|
};
|
|
|