[DM/FEATURE] Support input

components/drivers/Kconfig

@@ -21,6 +21,7 @@ rsource "touch/Kconfig"
 rsource "graphic/Kconfig"
 rsource "hwcrypto/Kconfig"
 rsource "wlan/Kconfig"
+rsource "input/Kconfig"
 rsource "mailbox/Kconfig"
 rsource "phye/Kconfig"
 rsource "ata/Kconfig"

components/drivers/include/drivers/input.h

@@ -0,0 +1,148 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-3-08      GuEe-GUI     the first version
+ */
+
+#ifndef __INPUT_H__
+#define __INPUT_H__
+
+#include <rtthread.h>
+
+#include <bitmap.h>
+#include <drivers/touch.h>
+#include <dt-bindings/input/event-codes.h>
+
+struct rt_input_poller;
+struct rt_input_absinfo;
+
+struct rt_input_event
+{
+    rt_tick_t tick;
+
+    rt_uint16_t type;
+    rt_uint16_t code;
+    rt_int32_t value;
+};
+
+struct rt_input_device
+{
+    struct rt_device parent;
+
+    RT_BITMAP_DECLARE(cap, EV_CNT);
+    RT_BITMAP_DECLARE(key_map, KEY_CNT);
+    RT_BITMAP_DECLARE(rel_map, REL_CNT);
+    RT_BITMAP_DECLARE(abs_map, ABS_CNT);
+
+    rt_list_t list;
+    rt_list_t handler_nodes;
+    struct rt_spinlock lock;
+
+    rt_err_t (*trigger)(struct rt_input_device *idev,
+            rt_uint16_t type, rt_uint16_t code, rt_int32_t value);
+
+    struct rt_input_poller *poller;
+    struct rt_input_absinfo *absinfo;
+#ifdef RT_INPUT_TOUCHSCREEN
+    void *touch;
+#endif
+};
+
+struct rt_input_handler
+{
+    rt_list_t list;
+    struct rt_input_device *idev;
+
+    rt_bool_t (*identify)(struct rt_input_handler *handler, struct rt_input_device *idev);
+    rt_bool_t (*callback)(struct rt_input_handler *handler, struct rt_input_event *ev);
+
+    void *priv;
+};
+
+struct rt_input_poller
+{
+#define RT_INPUT_POLL_INTERVAL_DEFAULT  17  /* 60fps */
+    rt_uint32_t interval;
+    struct rt_timer timer;
+
+    void (*poll)(struct rt_input_device *idev);
+};
+
+struct rt_input_absinfo
+{
+    rt_int32_t value;
+    rt_int32_t minimum;
+    rt_int32_t maximum;
+    rt_int32_t fuzz;
+    rt_int32_t flat;
+    rt_int32_t resolution;
+};
+
+rt_err_t rt_input_device_register(struct rt_input_device *idev);
+rt_err_t rt_input_device_unregister(struct rt_input_device *idev);
+
+rt_err_t rt_input_set_capability(struct rt_input_device *idev,
+        rt_uint16_t type, rt_uint16_t code);
+
+rt_err_t rt_input_set_absinfo(struct rt_input_device *idev, rt_uint32_t axis,
+        rt_int32_t min, rt_int32_t max, rt_int32_t fuzz, rt_int32_t flat);
+
+rt_err_t rt_input_setup_touch(struct rt_input_device *idev,
+        rt_uint32_t num_slots, struct rt_touch_info *info);
+rt_err_t rt_input_parse_touch_position(struct rt_input_device *idev,
+        rt_uint32_t *out_x, rt_uint32_t *out_y);
+
+rt_err_t rt_input_setup_polling(struct rt_input_device *idev,
+        void (*work)(struct rt_input_device *idev));
+rt_err_t rt_input_set_poll_interval(struct rt_input_device *idev,
+        rt_uint32_t interval_ms);
+
+rt_err_t rt_input_trigger(struct rt_input_device *idev,
+        rt_uint16_t type, rt_uint16_t code, rt_int32_t value);
+
+void rt_input_event(struct rt_input_device *idev,
+        rt_uint16_t type, rt_uint16_t code, rt_int32_t value);
+
+rt_inline void rt_input_report_key(struct rt_input_device *idev,
+        rt_uint16_t code, rt_int32_t value)
+{
+    rt_input_event(idev, EV_KEY, code, !!value);
+}
+
+rt_inline void rt_input_report_rel(struct rt_input_device *idev,
+        rt_uint16_t code, rt_int32_t value)
+{
+    rt_input_event(idev, EV_REL, code, value);
+}
+
+rt_inline void rt_input_report_abs(struct rt_input_device *idev,
+        rt_uint16_t code, rt_int32_t value)
+{
+    rt_input_event(idev, EV_ABS, code, value);
+}
+
+rt_inline void rt_input_report_touch_slot(struct rt_input_device *idev,
+        rt_uint32_t slot)
+{
+    rt_input_event(idev, EV_ABS, ABS_MT_SLOT, slot);
+}
+
+rt_bool_t rt_input_report_touch_inactive(struct rt_input_device *idev,
+        rt_bool_t active);
+
+void rt_input_report_touch_position(struct rt_input_device *idev,
+        rt_uint32_t x, rt_uint32_t y, rt_bool_t multitouch);
+
+rt_inline void rt_input_sync(struct rt_input_device *idev)
+{
+    rt_input_event(idev, EV_SYN, SYN_REPORT, 0);
+}
+
+rt_err_t rt_input_add_handler(struct rt_input_handler *handler);
+rt_err_t rt_input_del_handler(struct rt_input_handler *handler);
+
+#endif /* __INPUT_H__ */