harvey/sys/src/cmd/usb/kb/hid.h

/*
 * USB keyboard/mouse constants
 */
enum {
	/* HID class subclass protocol ids */
	PtrCSP		= 0x020103,	/* mouse.boot.hid */
	KbdCSP		= 0x010103,	/* keyboard.boot.hid */

	/* Requests */
	SET_PROTO	= 0x0b,

	/* protocols for SET_PROTO request */
	BOOT_PROTO	= 0,
	REPORT_PROTO	= 1,
};

enum {
	/* keyboard modifier bits */
	Mlctrl=		0,
	Mlshift=	1,
	Mlalt=		2,
	Mlgui=		3,
	Mrctrl=		4,
	Mrshift=	5,
	Mralt=		6,
	Mrgui=		7,

	/* masks for byte[0] */
	Mctrl=		1<<Mlctrl | 1<<Mrctrl,
	Mshift=		1<<Mlshift | 1<<Mrshift,
	Malt=		1<<Mlalt | 1<<Mralt,
	Mcompose=	1<<Mlalt,
	Maltgr=		1<<Mralt,
	Mgui=		1<<Mlgui | 1<<Mrgui,

	MaxAcc = 3,			/* max. ptr acceleration */
	PtrMask= 0xf,			/* 4 buttons: should allow for more. */

	Awakemsg=0xdeaddead,
};

/*
 * Plan 9 keyboard driver constants.
 */
enum {
	/* Scan codes (see kbd.c) */
	SCesc1=		0xe0,		/* first of a 2-character sequence */
	SCesc2=		0xe1,
	SClshift=	0x2a,
	SCrshift=	0x36,
	SCctrl=		0x1d,
	SCcompose=	0x38,
	Keyup=		0x80,		/* flag bit */
	Keymask=	0x7f,		/* regular scan code bits */
};

extern int hdebug;