Added support to press power/sleep/hibernate (and some more) buttons via System Controls. Implemented in Keyboard_::systemControl().

hardware/keyboardio/cores/keyboardio/HID.cpp

@@ -2,6 +2,8 @@
 
 /* Copyright (c) 2011, Peter Barrett  
 **  
+** Sleep/Wakeup/SystemControl support added by Michael Dreher
+**
 ** Permission to use, copy, modify, and/or distribute this software for  
 ** any purpose with or without fee is hereby granted, provided that the  
 ** above copyright notice and this permission notice appear in all copies.  
@@ -43,6 +45,11 @@ Keyboard_ Keyboard;
 #define RAWHID_TX_SIZE 64
 #define RAWHID_RX_SIZE 64
 
+#define HID_REPORTID_MOUSE (1)
+#define HID_REPORTID_KEYBOARD (2)
+#define HID_REPORTID_RAWHID (3)
+#define HID_REPORTID_SYSTEMCONTROL (4)
+#define HID_REPORTID_CONSUMERCONTROL (5)
 extern const u8 _hidReportDescriptor[] PROGMEM;
 const u8 _hidReportDescriptor[] = {
 	
@@ -52,7 +59,7 @@ const u8 _hidReportDescriptor[] = {
     0xa1, 0x01,                    // COLLECTION (Application)
     0x09, 0x01,                    //   USAGE (Pointer)
     0xa1, 0x00,                    //   COLLECTION (Physical)
-    0x85, 0x01,                    //     REPORT_ID (1)
+    0x85, HID_REPORTID_MOUSE,      //     REPORT_ID (1)
     0x05, 0x09,                    //     USAGE_PAGE (Button)
     0x19, 0x01,                    //     USAGE_MINIMUM (Button 1)
     0x29, 0x03,                    //     USAGE_MAXIMUM (Button 3)
@@ -80,7 +87,7 @@ const u8 _hidReportDescriptor[] = {
     0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)	// 47
     0x09, 0x06,                    // USAGE (Keyboard)
     0xa1, 0x01,                    // COLLECTION (Application)
-    0x85, 0x02,                    //   REPORT_ID (2)
+    0x85, HID_REPORTID_KEYBOARD,                    //   REPORT_ID (2)
     0x05, 0x07,                    //   USAGE_PAGE (Keyboard)
 
     0x19, 0xe0,                    //   USAGE_MINIMUM (Keyboard LeftControl)
@@ -106,6 +113,35 @@ const u8 _hidReportDescriptor[] = {
     0x81, 0x00,                    //   INPUT (Data,Ary,Abs)
     0xc0,                          // END_COLLECTION
 
+   //  System Control (Power Down, Sleep, Wakeup, ...)
+   0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
+   0x09, 0x80,                    // USAGE (System Control)
+   0xa1, 0x01,                    // COLLECTION (Application)
+   0x85, HID_REPORTID_SYSTEMCONTROL,// REPORT_ID (4)
+   0x09, 0x81,                    //   USAGE (System Power Down)
+   0x09, 0x82,                    //   USAGE (System Sleep)
+   0x09, 0x83,                    //   USAGE (System Wakeup)
+   0x09, 0x8E,                    //   USAGE (System Cold Restart)
+   0x09, 0x8F,                    //   USAGE (System Warm Restart)
+   0x09, 0xA0,                    //   USAGE (System Dock)
+   0x09, 0xA1,                    //   USAGE (System Undock)
+   0x09, 0xA7,                    //   USAGE (System Speaker Mute)
+   0x09, 0xA8,                    //   USAGE (System Hibernate)
+   // although these display usages are not that important, they don't cost much more than declaring
+   // the otherwise necessary constant fill bits
+   0x09, 0xB0,                    //   USAGE (System Display Invert)
+   0x09, 0xB1,                    //   USAGE (System Display Internal)
+   0x09, 0xB2,                    //   USAGE (System Display External)
+   0x09, 0xB3,                    //   USAGE (System Display Both)
+   0x09, 0xB4,                    //   USAGE (System Display Dual)
+   0x09, 0xB5,                    //   USAGE (System Display Toggle Intern/Extern)
+   0x09, 0xB6,                    //   USAGE (System Display Swap)
+   0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
+   0x25, 0x01,                    //   LOGICAL_MAXIMUM (1)
+   0x75, 0x01,                    //   REPORT_SIZE (1)
+   0x95, 0x10,                    //   REPORT_COUNT (16)
+   0x81, 0x02,                    //   INPUT (Data,Var,Abs)
+   0xc0,                          // END_COLLECTION
 
 #if RAWHID_ENABLED
 	//	RAW HID
@@ -113,7 +149,7 @@ const u8 _hidReportDescriptor[] = {
 	0x0A, LSB(RAWHID_USAGE), MSB(RAWHID_USAGE),
 
 	0xA1, 0x01,				// Collection 0x01
-    0x85, 0x03,             // REPORT_ID (3)
+    0x85, HID_REPORTID_RAWHID,             // REPORT_ID (3)
 	0x75, 0x08,				// report size = 8 bits
 	0x15, 0x00,				// logical minimum = 0
 	0x26, 0xFF, 0x00,		// logical maximum = 255
@@ -131,7 +167,7 @@ const u8 _hidReportDescriptor[] = {
 	0x05, 0x0c,			// USAGE_PAGE (Consumer Devices) 
 	 0x09, 0x01,			// USAGE (Consumer Control) 
 	 0xa1, 0x01,			// COLLECTION (Application) 
-	 0x85, 0x04,			// REPORT_ID (4) 
+	 0x85, HID_REPORTID_CONSUMERCONTROL,			// REPORT_ID (4) 
 	 0x15, 0x00,			// LOGICAL_MINIMUM (0) 
 	 0x25, 0x01,			// LOGICAL_MAXIMUM (1) 
 	 0x75, 0x01,			// REPORT_SIZE (1) 
@@ -154,18 +190,6 @@ const u8 _hidReportDescriptor[] = {
 	 0x0a, 0x24, 0x02,		// USAGE (www back) 0x10 
 	 0x81, 0x62,			// INPUT (Data,Var,Abs,NPrf,Null) 
 	 0xc0, 
-	// System Control Descriptor 
-	 0x05, 0x01, /* Usage Page (Generic Desktop) */ 
-	 0x09, 0x80, /* Usage (System Control) */ 
-	 0xA1, 0x01, /* Collection (Application) */ 
-	 0x85, 0x04, /* Report ID 0x05 [SYSTEM CTRL] */ 
-	 0x19, 0x82, /* Usage minimum (System Sleep) */ 
-	 0x29, 0x83, /* Usage maximum (System Wake up) */ 
-	 0x95, 0x02, /* Report count (2) */ 
-	 0x81, 0x06, /*Input (data, variable, relative, Preferred) */ 
-	 0x95, 0x06, /* Report count (6) */ 
-	 0x81, 0x01, /*Input (Constant) */ 
-	 0xC0, /*End Collection */ 
 };
 
 extern const HIDDescriptor _hidInterface PROGMEM;
@@ -268,7 +292,7 @@ void Mouse_::move(signed char x, signed char y, signed char wheel)
 	m[1] = x;
 	m[2] = y;
 	m[3] = wheel;
-	HID_SendReport(1,m,4);
+	HID_SendReport(HID_REPORTID_MOUSE,m,sizeof(m));
 }
 
 void Mouse_::buttons(uint8_t b)
@@ -401,7 +425,7 @@ void Keyboard_::end(void)
 
 void Keyboard_::sendReport(KeyReport* keys)
 {
-	HID_SendReport(2,keys,sizeof(KeyReport));
+	HID_SendReport(HID_REPORTID_KEYBOARD,keys,sizeof(*keys));
 }
 
 extern
@@ -588,6 +612,38 @@ size_t Keyboard_::press(uint8_t k)
 	return 1;
 }
 
+// System Control
+//  k is one of the SYSTEM_CONTROL defines which come from the HID usage table "Generic Desktop Page (0x01)"
+// in "HID Usage Tables" (HUT1_12v2.pdf)
+size_t Keyboard_::systemControl(uint8_t k) 
+{
+	if(k <= 16)
+	{
+		u16 mask = 0;
+		u8 m[2];
+
+		if(k > 0)
+		{
+			mask = 1 << (k - 1);
+		}
+
+		m[0] = LSB(mask);
+		m[1] = MSB(mask);
+		HID_SendReport(HID_REPORTID_SYSTEMCONTROL,m,sizeof(m));
+
+		// these are all OSCs, so send a clear to make it possible to send it again later
+		m[0] = 0;
+		m[1] = 0;
+		HID_SendReport(HID_REPORTID_SYSTEMCONTROL,m,sizeof(m));
+		return 1;
+	}
+	else
+	{
+		setWriteError();
+		return 0;
+	}
+}
+
 // release() takes the specified key out of the persistent key report and
 // sends the report.  This tells the OS the key is no longer pressed and that
 // it shouldn't be repeated any more.

hardware/keyboardio/cores/keyboardio/USBAPI.h

@@ -113,6 +113,30 @@ extern Mouse_ Mouse;
 #define KEY_F11				0xCC
 #define KEY_F12				0xCD
 
+
+// System Control values for Keyboard_::systemControl()
+//  these defines come from the HID usage table "Generic Desktop Page (0x01)"
+//  in the USB standard document "HID Usage Tables" (HUT1_12v2.pdf)
+//  Currently this list contains only OSC (one shot control) values,
+//  the implementation of systemControl will have to be changed when
+//  adding OOC or RTC values.
+#define SYSTEM_CONTROL_POWER_DOWN              1
+#define SYSTEM_CONTROL_SLEEP                   2
+#define SYSTEM_CONTROL_WAKEUP                  3
+#define SYSTEM_CONTROL_COLD_RESTART            4
+#define SYSTEM_CONTROL_WARM_RESTART            5
+#define SYSTEM_CONTROL_DOCK                    6
+#define SYSTEM_CONTROL_UNDOCK                  7
+#define SYSTEM_CONTROL_SPEAKER_MUTE            8
+#define SYSTEM_CONTROL_HIBERNATE               9
+#define SYSTEM_CONTROL_DISPLAY_INVERT         10
+#define SYSTEM_CONTROL_DISPLAY_INTERNAL       11
+#define SYSTEM_CONTROL_DISPLAY_EXTERNAL       12
+#define SYSTEM_CONTROL_DISPLAY_BOTH           13
+#define SYSTEM_CONTROL_DISPLAY_DUAL           14
+#define SYSTEM_CONTROL_DISPLAY_TOGGLE_INT_EXT 15
+#define SYSTEM_CONTROL_DISPLAY_SWAP           16
+
 //	Low level key report: up to 6 keys and shift, ctrl etc at once
 typedef struct
 {
@@ -134,6 +158,7 @@ public:
 	virtual size_t press(uint8_t k);
 	virtual size_t release(uint8_t k);
 	virtual void releaseAll(void);
+	virtual size_t systemControl(uint8_t k);
 };
 extern Keyboard_ Keyboard;
 

hardware/keyboardio/cores/keyboardio/USBCore.cpp

@@ -2,6 +2,8 @@
 
 /* Copyright (c) 2010, Peter Barrett  
 **  
+** Sleep/Wakeup/SystemControl support added by Michael Dreher
+**
 ** Permission to use, copy, modify, and/or distribute this software for  
 ** any purpose with or without fee is hereby granted, provided that the  
 ** above copyright notice and this permission notice appear in all copies.