init lvgl code

LVGL.Simulator/lv_drivers/indev/libinput_drv.h

@@ -0,0 +1,145 @@
+/**
+ * @file libinput.h
+ *
+ */
+
+#ifndef LVGL_LIBINPUT_H
+#define LVGL_LIBINPUT_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#ifndef LV_DRV_NO_CONF
+#ifdef LV_CONF_INCLUDE_SIMPLE
+#include "lv_drv_conf.h"
+#else
+#include "../../lv_drv_conf.h"
+#endif
+#endif
+
+#if USE_LIBINPUT || USE_BSD_LIBINPUT
+
+#ifdef LV_LVGL_H_INCLUDE_SIMPLE
+#include "lvgl.h"
+#else
+#include "lvgl/lvgl.h"
+#endif
+
+#include <poll.h>
+
+#if USE_XKB
+#include "xkb.h"
+#endif /* USE_XKB */
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+typedef enum {
+  LIBINPUT_CAPABILITY_NONE     = 0,
+  LIBINPUT_CAPABILITY_KEYBOARD = 1U << 0,
+  LIBINPUT_CAPABILITY_POINTER  = 1U << 1,
+  LIBINPUT_CAPABILITY_TOUCH    = 1U << 2
+} libinput_capability;
+
+typedef struct {
+  int fd;
+  struct pollfd fds[1];
+
+  int button;
+  int key_val;
+  lv_point_t most_recent_touch_point;
+
+  struct libinput *libinput_context;
+  struct libinput_device *libinput_device;
+
+#if USE_XKB
+  xkb_drv_state_t xkb_state;
+#endif /* USE_XKB */
+} libinput_drv_state_t;
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * 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 *libinput_find_dev(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 libinput_find_devs(libinput_capability capabilities, char **found, size_t count, bool force_rescan);
+/**
+ * Prepare for reading input via libinput using the default driver state. Use this function if you only want
+ * to connect a single device.
+ */
+void libinput_init(void);
+/**
+ * Prepare for reading input via libinput using a specific driver state. Use this function if you want to
+ * connect multiple devices.
+ * @param state driver state to initialize
+ * @param path input device node path (e.g. /dev/input/event0)
+ */
+void libinput_init_state(libinput_drv_state_t *state, char* path);
+/**
+ * Reconfigure the device file for libinput using the default driver state. Use this function if you only want
+ * to connect a single device.
+ * @param dev_name input device node path (e.g. /dev/input/event0)
+ * @return true: the device file set complete
+ *         false: the device file doesn't exist current system
+ */
+bool libinput_set_file(char* dev_name);
+/**
+ * Reconfigure the device file for libinput using a specific driver state. Use this function if you want to
+ * connect multiple devices.
+ * @param state the driver state to configure
+ * @param dev_name input device node path (e.g. /dev/input/event0)
+ * @return true: the device file set complete
+ *         false: the device file doesn't exist current system
+ */
+bool libinput_set_file_state(libinput_drv_state_t *state, char* dev_name);
+/**
+ * Read available input events via libinput using the default driver state. Use this function if you only want
+ * to connect a single device.
+ * @param indev_drv driver object itself
+ * @param data store the libinput data here
+ */
+void libinput_read(lv_indev_drv_t * indev_drv, lv_indev_data_t * data);
+/**
+ * Read available input events via libinput using a specific driver state. Use this function if you want to
+ * connect multiple devices.
+ * @param state the driver state to use
+ * @param indev_drv driver object itself
+ * @param data store the libinput data here
+ */
+void libinput_read_state(libinput_drv_state_t * state, lv_indev_drv_t * indev_drv, lv_indev_data_t * data);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif /* USE_LIBINPUT || USE_BSD_LIBINPUT */
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* LVGL_LIBINPUT_H */