1 files changed, 134 insertions, 0 deletions
diff --git a/lib/lvgl/src/drivers/libinput/lv_libinput.h b/lib/lvgl/src/drivers/libinput/lv_libinput.h
new file mode 100644
index 00000000..4ec1160a
--- /dev/null
+++ b/lib/lvgl/src/drivers/libinput/lv_libinput.h
@@ -0,0 +1,134 @@
+/**
+ * @file lv_libinput.h
+ *
+ */
+
+#ifndef LV_LIBINPUT_H
+#define LV_LIBINPUT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+
+#include "../../indev/lv_indev.h"
+
+#if LV_USE_LIBINPUT
+
+#include <poll.h>
+#include <pthread.h>
+
+#if LV_LIBINPUT_XKB
+#include "lv_xkb.h"
+#endif /* LV_LIBINPUT_XKB */
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+typedef enum {
+    LV_LIBINPUT_CAPABILITY_NONE     = 0,
+    LV_LIBINPUT_CAPABILITY_KEYBOARD = 1U << 0,
+    LV_LIBINPUT_CAPABILITY_POINTER  = 1U << 1,
+    LV_LIBINPUT_CAPABILITY_TOUCH    = 1U << 2
+} lv_libinput_capability;
+
+typedef struct {
+    lv_indev_state_t pressed;
+    int key_val;
+    lv_point_t point;
+} lv_libinput_event_t;
+
+#define LV_LIBINPUT_MAX_EVENTS 32
+
+typedef struct {
+    int fd;
+    struct pollfd fds[1];
+
+    /* The points array is implemented as a circular LIFO queue */
+    lv_libinput_event_t points[LV_LIBINPUT_MAX_EVENTS]; /* Event buffer */
+    lv_libinput_event_t slots[2]; /* Realtime state of up to 2 fingers to handle multitouch */
+
+    /* Pointer devices work a bit differently in libinput which requires us to store their last known state */
+    lv_point_t pointer_position;
+    bool pointer_button_down;
+
+    int start; /* Index of start of event queue */
+    int end; /* Index of end of queue*/
+    lv_libinput_event_t last_event; /* Report when no new events
+                                   * to keep indev state consistent
+                                   */
+    bool deinit; /* Tell worker thread to quit */
+    pthread_mutex_t event_lock;
+    pthread_t worker_thread;
+
+    struct libinput * libinput_context;
+    struct libinput_device * libinput_device;
+
+#if LV_LIBINPUT_XKB
+    lv_xkb_t xkb;
+#endif /* LV_LIBINPUT_XKB */
+} lv_libinput_t;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * Determine the capabilities of a specific libinput device.
+ * @param device the libinput device to query
+ * @return the supported input capabilities
+ */
+lv_libinput_capability lv_libinput_query_capability(struct libinput_device * device);
+
+/**
+ * Find connected input device with specific capabilities
+ * @param capabilities required device capabilities
+ * @param force_rescan erase the device cache (if any) and rescan the file system for available devices
+ * @return device node path (e.g. /dev/input/event0) for the first matching device or NULL if no device was found.
+ *         The pointer is safe to use until the next forceful device search.
+ */
+char * lv_libinput_find_dev(lv_libinput_capability capabilities, bool force_rescan);
+
+/**
+ * Find connected input devices with specific capabilities
+ * @param capabilities required device capabilities
+ * @param devices pre-allocated array to store the found device node paths (e.g. /dev/input/event0). The pointers are
+ *                safe to use until the next forceful device search.
+ * @param count maximum number of devices to find (the devices array should be at least this long)
+ * @param force_rescan erase the device cache (if any) and rescan the file system for available devices
+ * @return number of devices that were found
+ */
+size_t lv_libinput_find_devs(lv_libinput_capability capabilities, char ** found, size_t count, bool force_rescan);
+
+/**
+ * Create a new libinput input device
+ * @param type LV_INDEV_TYPE_POINTER or LV_INDEV_TYPE_KEYPAD
+ * @param dev_path device path, e.g. /dev/input/event0
+ * @return pointer to input device or NULL if opening failed
+ */
+lv_indev_t * lv_libinput_create(lv_indev_type_t indev_type, const char * dev_path);
+
+/**
+ * Delete a libinput input devic
+ * @param indev pointer to input device
+ */
+void lv_libinput_delete(lv_indev_t * indev);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /* LV_USE_LIBINPUT */
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LV_LIBINPUT_H */