drivers: sensor: apds9960: Setup gesture sensing configuration

Created sensor specific channels and Kconfig for gesture sensing.

Signed-off-by: Thomas Lang <[email protected]>

Author: batkay

drivers/sensor/apds9960/Kconfig

@@ -58,4 +58,10 @@ config APDS9960_ENABLE_ALS
 	help
 	  Enable Ambient Light Sense (ALS).
 
+config APDS9960_ENABLE_GESTURE
+	bool "Gesture Sense"
+	default n
+	help
+	  Enable Gesture Sense.
+
 endif # APDS9960

drivers/sensor/apds9960/apds9960.c

@@ -527,6 +527,16 @@ static DEVICE_API(sensor, apds9960_driver_api) = {
 #define APDS9960_CONFIG_INTERRUPT(inst)
 #endif
 
+#if CONFIG_APDS9960_ENABLE_GESTURE
+#define APDS9960_CONFIG_GESTURE(inst)                                                              \
+		.gesture_config = {                                                                \
+			.proximity = DT_INST_PROP(inst, proximity),                                \
+			.ir_difference = DT_INST_PROP(inst, ir_difference),                        \
+		},
+#else
+#define APDS9960_CONFIG_GESTURE(inst)
+#endif
+
 #define APDS9960_INIT(i)                                                                           \
 	static struct apds9960_config apds9960_data_##i;                                           \
 	static const struct apds9960_config apds9960_config_##i = {                                \
@@ -536,6 +546,7 @@ static DEVICE_API(sensor, apds9960_driver_api) = {
 		.again = DT_INST_PROP(i, again),                                                   \
 		.ppcount = DT_INST_PROP(i, ppulse_length) | (DT_INST_PROP(i, ppulse_count) - 1),   \
 		.pled_boost = DT_INST_PROP(i, pled_boost) << 4,                                    \
+		APDS9960_CONFIG_GESTURE(i)                                                         \
 	};                                                                                         \
                                                                                                    \
 	PM_DEVICE_DT_INST_DEFINE(i, apds9960_pm_action);                                           \

dts/bindings/sensor/avago,apds9960.yaml

@@ -60,3 +60,13 @@ properties:
     type: int
     default: 0x8
     description: Proximity Pulse Count
+
+  proximity:
+    type: int
+    description: Gesture Proximity Enter Threshold
+    default: 40
+
+  ir-difference:
+    type: int
+    description: Minimum IR diode difference for gesture
+    default: 5

drivers/sensor/apds9960/apds9960.h renamed to include/zephyr/drivers/sensor/apds9960.h

@@ -9,6 +9,7 @@
 #define ZEPHYR_DRIVERS_SENSOR_APDS9960_APDS9960_H_
 
 #include <zephyr/drivers/gpio.h>
+#include <zephyr/drivers/i2c.h>
 
 #define APDS9960_ENABLE_REG		0x80
 #define APDS9960_ENABLE_GEN		BIT(6)
@@ -216,6 +217,11 @@
 #define APDS9960_DEFAULT_WAIT_TIME      2.78
 #define APDS9960_MAX_WAIT_TIME          10000
 
+struct apds9960_gesture_setup {
+	int proximity;
+	int ir_difference;
+};
+
 struct apds9960_config {
 	struct i2c_dt_spec i2c;
 #ifdef CONFIG_APDS9960_FETCH_MODE_INTERRUPT
@@ -225,6 +231,22 @@ struct apds9960_config {
 	uint8_t again;
 	uint8_t ppcount;
 	uint8_t pled_boost;
+#ifdef CONFIG_APDS9960_ENABLE_GESTURE
+	struct apds9960_gesture_setup gesture_config;
+#endif
+};
+
+/* apds9960 specific channels */
+enum sensor_channel_apds9960 {
+	SENSOR_CHAN_APDS9960_GESTURE = SENSOR_CHAN_PRIV_START,
+};
+
+enum apds9960_gesture {
+	APDS9960_GESTURE_NONE,
+	APDS9960_GESTURE_UP,
+	APDS9960_GESTURE_DOWN,
+	APDS9960_GESTURE_LEFT,
+	APDS9960_GESTURE_RIGHT,
 };
 
 struct apds9960_data {
@@ -233,6 +255,7 @@ struct apds9960_data {
 	const struct device *dev;
 	uint16_t sample_crgb[4];
 	uint8_t pdata;
+	enum apds9960_gesture gesture;
 
 #ifdef CONFIG_APDS9960_TRIGGER
 	sensor_trigger_handler_t p_th_handler;