Merging usbh_kbd example from Kuldeep

Author: brabo

examples/common/usbh_kbd/usbh_kbd-target.h

@@ -0,0 +1,51 @@
+/*
+ * This file is part of the unicore-mx project.
+ *
+ * Copyright (C) 2016 Kuldeep Singh Dhaka <[email protected]>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef USBH_KBD_TARGET_H
+#define USBH_KBD_TARGET_H
+
+#include <unicore-mx/usbh/usbh.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+
+void usbh_kbd_init(void);
+
+usbh_backend *usbh_kbd_backend(void);
+
+/**
+ * The timer is expected to
+ *  - count to up
+ *  - counting at 10Khz
+ *  - roll over to 0 on overflow
+ */
+uint16_t tim_get_counter(void);
+
+void usbh_kbd_before_poll(void);
+void usbh_kbd_after_poll(void);
+
+void usart_puts(const char *arg);
+void usart_printf(const char *fmt, ...);
+void usart_vprintf(const char *fmt, va_list va);
+
+#endif