Diff: USBDevice/USBHID/USBKeyboard.h

Revision:

0:22612ae617a0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/USBDevice/USBHID/USBKeyboard.h	Mon Oct 08 11:14:07 2012 +0000
@@ -0,0 +1,170 @@
+/* Copyright (c) 2010-2011 mbed.org, MIT License
+*
+* 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 USBKEYBOARD_H
+#define USBKEYBOARD_H
+
+#include "USBHID.h"
+#include "Stream.h"
+
+/* Modifiers */
+enum MODIFIER_KEY
+{
+    KEY_CTRL = 1,
+    KEY_SHIFT = 2,
+    KEY_ALT = 4,
+};
+
+
+enum MEDIA_KEY
+{
+    KEY_NEXT_TRACK,     /*!< next Track Button */
+    KEY_PREVIOUS_TRACK, /*!< Previous track Button */
+    KEY_STOP,           /*!< Stop Button */
+    KEY_PLAY_PAUSE,     /*!< Play/Pause Button */
+    KEY_MUTE,           /*!< Mute Button */
+    KEY_VOLUME_UP,      /*!< Volume Up Button */
+    KEY_VOLUME_DOWN,    /*!< Volume Down Button */
+};
+
+enum FUNCTION_KEY
+{
+    KEY_F1 = 128,   /* F1 key */
+    KEY_F2,         /* F2 key */
+    KEY_F3,         /* F3 key */
+    KEY_F4,         /* F4 key */
+    KEY_F5,         /* F5 key */
+    KEY_F6,         /* F6 key */
+    KEY_F7,         /* F7 key */
+    KEY_F8,         /* F8 key */
+    KEY_F9,         /* F9 key */
+    KEY_F10,        /* F10 key */
+    KEY_F11,        /* F11 key */
+    KEY_F12,        /* F12 key */
+    KEY_PRINT_SCREEN,   /* Print Screen key */
+    KEY_SCROLL_LOCK, /* Scroll lock */
+    KEY_CAPS_LOCK,   /* caps lock */
+    KEY_NUM_LOCK,   /* num lock */
+    KEY_INSERT,         /* Insert key */
+    KEY_HOME,           /* Home key */
+    KEY_PAGE_UP,        /* Page Up key */
+    KEY_PAGE_DOWN,      /* Page Down key */
+};
+
+/** 
+ * USBKeyboard example
+ * @code
+ *
+ * #include "mbed.h"
+ * #include "USBKeyboard.h"
+ *
+ * USBKeyboard key;
+ * 
+ * int main(void)
+ * {
+ *   while (1)
+ *   {
+ *       key.printf("Hello World\r\n");
+ *       wait(1);
+ *   }
+ * }
+ *
+ * @endcode
+ */
+class USBKeyboard: public USBHID, public Stream
+{
+    public:
+    
+        /**
+        *   Constructor
+        *
+        *
+        * @param leds Leds bus: first: NUM_LOCK, second: CAPS_LOCK, third: SCROLL_LOCK
+        * @param vendor_id Your vendor_id (default: 0x1235)
+        * @param product_id Your product_id (default: 0x0050)
+        * @param product_release Your preoduct_release (default: 0x0001)
+        *
+        */
+        USBKeyboard(uint16_t vendor_id = 0x1235, uint16_t product_id = 0x0050, uint16_t product_release = 0x0001): 
+            USBHID(0, 0, vendor_id, product_id, product_release, false){
+                lock_status = 0;
+                connect();
+            };
+        
+        /**
+        * To send a character defined by a modifier(CTRL, SHIFT, ALT) and the key 
+        *
+        * @code
+        * //To send CTRL + s (save)
+        *  keyboard.keyCode('s', KEY_CTRL);
+        * @endcode
+        *
+        * @param modifier bit 0: KEY_CTRL, bit 1: KEY_SHIFT, bit 2: KEY_ALT (default: 0)
+        * @param key character to send
+        * @returns true if there is no error, false otherwise
+        */
+        bool keyCode(uint8_t key, uint8_t modifier = 0);
+        
+        /**
+        * Send a character
+        *
+        * @param c character to be sent
+        * @returns true if there is no error, false otherwise
+        */
+        virtual int _putc(int c);
+        
+        /**
+        * Control media keys
+        *
+        * @param key media key pressed (KEY_NEXT_TRACK, KEY_PREVIOUS_TRACK, KEY_STOP, KEY_PLAY_PAUSE, KEY_MUTE, KEY_VOLUME_UP, KEY_VOLUME_DOWN)
+        * @returns true if there is no error, false otherwise
+        */
+        bool mediaControl(MEDIA_KEY key);
+        
+        /*
+        * To define the report descriptor. Warning: this method has to store the length of the report descriptor in reportLength.
+        *
+        * @returns pointer to the report descriptor
+        */
+        virtual uint8_t * reportDesc();
+        
+        /*
+        * Called when a data is received on the OUT endpoint. Useful to switch on LED of LOCK keys
+        *
+        * @returns if handle by subclass, return true
+        */
+        virtual bool EP1_OUT_callback();
+        
+        /**
+        * Read status of lock keys. Useful to switch-on/off leds according to key pressed. Only the first three bits of the result is important:
+        *   - First bit: NUM_LOCK
+        *   - Second bit: CAPS_LOCK
+        *   - Third bit: SCROLL_LOCK
+        *
+        * @returns status of lock keys
+        */
+        uint8_t lockStatus();
+        
+   private:
+        //dummy otherwise it doesn,t compile (we must define all methods of an abstract class)
+        virtual int _getc() { return -1;};
+        
+        uint8_t lock_status;
+};
+
+#endif