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- /* mbed USBHost Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
- #ifndef USBHOSTKEYBOARD_H
- #define USBHOSTKEYBOARD_H
-
- #include "USBHostConf.h"
-
- #if USBHOST_KEYBOARD
-
- #include "USBHost.h"
-
- /**
- * A class to communicate a USB keyboard
- */
- class USBHostKeyboard : public IUSBEnumerator {
- public:
-
- /**
- * Constructor
- */
- USBHostKeyboard();
-
- /**
- * Try to connect a keyboard device
- *
- * @return true if connection was successful
- */
- bool connect();
-
- /**
- * Check if a keyboard is connected
- *
- * @returns true if a keyboard is connected
- */
- bool connected();
-
- /**
- * Attach a callback called when a keyboard event is received
- *
- * @param ptr function pointer
- */
- inline void attach(void (*ptr)(uint8_t key)) {
- if (ptr != NULL) {
- onKey = ptr;
- }
- }
-
- /**
- * Attach a callback called when a keyboard event is received
- *
- * @param ptr function pointer
- */
- inline void attach(void (*ptr)(uint8_t keyCode, uint8_t modifier)) {
- if (ptr != NULL) {
- onKeyCode = ptr;
- }
- }
-
- protected:
- //From IUSBEnumerator
- virtual void setVidPid(uint16_t vid, uint16_t pid);
- virtual bool parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol); //Must return true if the interface should be parsed
- virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
-
- private:
- USBHost * host;
- USBDeviceConnected * dev;
- USBEndpoint * int_in;
- uint8_t report[9];
- int keyboard_intf;
- bool keyboard_device_found;
-
- bool dev_connected;
-
- void rxHandler();
-
- void (*onKey)(uint8_t key);
- void (*onKeyCode)(uint8_t key, uint8_t modifier);
-
- int report_id;
-
- void init();
-
- };
-
- #endif
-
- #endif
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