push

app/CMakeLists.txt

@@ -87,6 +87,7 @@ target_sources_ifdef(CONFIG_USB_DEVICE_STACK app PRIVATE src/usb.c)
 target_sources_ifdef(CONFIG_ZMK_USB app PRIVATE src/usb_hid.c)
 target_sources_ifdef(CONFIG_ZMK_RGB_UNDERGLOW app PRIVATE src/rgb_underglow.c)
 target_sources_ifdef(CONFIG_ZMK_BACKLIGHT app PRIVATE src/backlight.c)
+target_sources_ifdef(CONFIG_ZMK_TRACKPAD app PRIVATE src/trackpad.c)
 target_sources(app PRIVATE src/main.c)
 
 add_subdirectory(src/display/)

app/Kconfig

@@ -301,6 +301,10 @@ config ZMK_BACKLIGHT_AUTO_OFF_USB
 #ZMK_BACKLIGHT
 endif
 
+config ZMK_TRACKPAD
+    bool "Enable the trackpad HID reporting and processing"
+    default n
+
 #Display/LED Options
 endmenu
 

app/boards/arm/bt60/bt60.dts

@@ -126,7 +126,7 @@
         compatible = "cirque,gen4";
         status = "okay";
         reg = <0x2C>;
-        dr-gpios = <&gpio0 17 (GPIO_ACTIVE_LOW)>;
+        dr-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;
         rotate-90;
         sleep;
     };

app/boards/arm/bt60/bt60_defconfig

@@ -14,9 +14,11 @@ CONFIG_PINCTRL=y
 
 CONFIG_ZMK_USB_LOGGING=y
 
+CONFIG_ZMK_TRACKPAD=y
 CONFIG_I2C=y
 CONFIG_GEN4=y
 CONFIG_GEN4_TRIGGER_GLOBAL_THREAD=y
+CONFIG_SENSOR_LOG_LEVEL_DBG=y
 
 
 CONFIG_USE_DT_CODE_PARTITION=y

app/drivers/sensor/gen4/gen4.c

@@ -111,7 +111,7 @@ static int gen4_channel_get(const struct device *dev, enum sensor_channel chan,
 }
 
 static int gen4_sample_fetch(const struct device *dev, enum sensor_channel) {
-    uint8_t packet[53];
+    uint8_t packet[54];
     int ret;
     ret = gen4_normal_read(dev, packet, 52);
     if (ret < 0) {
@@ -176,11 +176,11 @@ static int gen4_trigger_set(const struct device *dev, const struct sensor_trigge
 
 static void gen4_int_cb(const struct device *dev) {
     struct gen4_data *data = dev->data;
+    set_int(dev, false);
+
     LOG_DBG("Gen4 interrupt trigd: %d", 0);
-    gen4_sample_fetch(dev, 0);
     data->data_ready_handler(dev, data->data_ready_trigger);
     set_int(dev, true);
-    data->in_int = false;
 }
 
 #ifdef CONFIG_GEN4_TRIGGER_OWN_THREAD
@@ -203,6 +203,7 @@ static void gen4_work_cb(struct k_work *work) {
 static void gen4_gpio_cb(const struct device *port, struct gpio_callback *cb, uint32_t pins) {
     struct gen4_data *data = CONTAINER_OF(cb, struct gen4_data, gpio_cb);
     data->in_int = true;
+    LOG_DBG("Interrupt trigd");
 #if defined(CONFIG_GEN4_TRIGGER_OWN_THREAD)
     k_sem_give(&data->gpio_sem);
 #elif defined(CONFIG_GEN4_TRIGGER_GLOBAL_THREAD)
@@ -236,6 +237,7 @@ static int gen4_init(const struct device *dev) {
 #elif defined(CONFIG_GEN4_TRIGGER_GLOBAL_THREAD)
     k_work_init(&data->work, gen4_work_cb);
 #endif
+    set_int(dev, true);
 #endif
     LOG_WRN("inited");
     return 0;

app/src/trackpad.c

@@ -0,0 +1,35 @@
+#include <zephyr/drivers/sensor.h>
+#include <zephyr/logging/log.h>
+
+#include "zmk/hid.h"
+#include "zmk/endpoints.h"
+#include "drivers/sensor/gen4.h"
+
+LOG_MODULE_REGISTER(trackpad, CONFIG_SENSOR_LOG_LEVEL);
+
+const struct device *trackpad = DEVICE_DT_GET(DT_INST(0, cirque_gen4));
+
+static void handle_trackpad(const struct device *dev, const struct sensor_trigger *trig) {
+    static uint8_t last_pressed = 0;
+    int ret = sensor_sample_fetch(dev);
+    if (ret < 0) {
+        LOG_ERR("fetch: %d", ret);
+        return;
+    }
+    LOG_DBG("Trackpad handler trigd %d", 0);
+}
+
+static int trackpad_init() {
+    struct sensor_trigger trigger = {
+        .type = SENSOR_TRIG_DATA_READY,
+        .chan = SENSOR_CHAN_ALL,
+    };
+    printk("trackpad");
+    if (sensor_trigger_set(trackpad, &trigger, handle_trackpad) < 0) {
+        LOG_ERR("can't set trigger");
+        return -EIO;
+    };
+    return 0;
+}
+
+SYS_INIT(trackpad_init, APPLICATION, CONFIG_ZMK_KSCAN_INIT_PRIORITY);