adding usbd hid

Author: hathach

src/Adafruit_TinyUSB.h

@@ -26,5 +26,6 @@
 #define ADAFRUIT_TINYUSB_H_
 
 #include "Adafruit_USBD_MSC.h"
+#include "Adafruit_USBD_HID.h"
 
 #endif /* ADAFRUIT_TINYUSB_H_ */

src/Adafruit_USBD_HID.cpp

@@ -0,0 +1,67 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "Adafruit_USBD_HID.h"
+
+#define EPOUT   0x00
+#define EPIN    0x80
+
+//------------- IMPLEMENTATION -------------//
+Adafruit_USBD_HID::Adafruit_USBD_HID(void)
+{
+  _protocol = HID_PROTOCOL_NONE;
+  _desc_report = NULL;
+  _desc_report_len = 0;
+}
+
+void Adafruit_USBD_HID::setBootProtocol(uint8_t protocol)
+{
+  _protocol = protocol;
+}
+
+void Adafruit_USBD_HID::setReportDescriptor(uint8_t const* desc_report, uint16_t len)
+{
+  _desc_report = desc_report;
+  _desc_report_len = len;
+}
+
+uint16_t Adafruit_USBD_HID::getDescriptor(uint8_t* buf, uint16_t bufsize)
+{
+  if ( !_desc_report_len ) return 0;
+
+  uint8_t desc[] = { TUD_HID_DESCRIPTOR(0, 0, _protocol, _desc_report_len, EPIN, 16, 4) };
+  uint16_t const len = sizeof(desc);
+
+  if ( bufsize < len ) return 0;
+  memcpy(buf, desc, len);
+  return len;
+}
+
+bool Adafruit_USBD_HID::begin(void)
+{
+  if ( !USBDevice.addInterface(*this) ) return false;
+  tud_desc_set.hid_report = _desc_report;
+
+  return true;
+}

src/Adafruit_USBD_HID.h

@@ -0,0 +1,49 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef ADAFRUIT_USBD_HID_H_
+#define ADAFRUIT_USBD_HID_H_
+
+#include "Adafruit_TinyUSB_core.h"
+
+class Adafruit_USBD_HID : Adafruit_USBD_Interface
+{
+  public:
+    Adafruit_USBD_HID(void);
+
+    void setBootProtocol(uint8_t protocol); // 0: None, 1: Keyboard, 2:Mouse
+    void setReportDescriptor(uint8_t const* desc_report, uint16_t len);
+
+    bool begin(void);
+
+    // from Adafruit_USBD_Interface
+    virtual uint16_t getDescriptor(uint8_t* buf, uint16_t bufsize);
+
+  private:
+    uint8_t _protocol;
+    uint8_t const* _desc_report;
+    uint16_t _desc_report_len;
+};
+
+#endif /* ADAFRUIT_USBD_HID_H_ */