27  * 			2/3/5 Button PS/2 Mouse Protocol
29  * This module dynamically determines the number of buttons on the mouse.
37 #include <sys/mouse.h>
82 #define	PS2_WAIT_WHEEL_DEV_ACK		26	/* Detected wheel mouse */
90 #define	PS2_WAIT_WHEEL5_DEV_ACK		34	/* Detected 5 button mouse */
97 #define	MOUSE_MODE_PLAIN	0	/* Normal PS/2 mouse - 3 byte msgs */
98 #define	MOUSE_MODE_WHEEL	1	/* Wheel mouse - 4 byte msgs */
99 #define	MOUSE_MODE_WHEEL5	2	/* Wheel + 5 btn mouse - 4 byte msgs */
101 #define	PS2_FLAG_NO_EXTN	0x08	/* Mouse doesn't obey extended cmds */
102 #define	PS2_FLAG_INIT_DONE	0x01	/* Mouse has been inited successfully */
103 #define	PS2_FLAG_INIT_TIMEOUT	0x02	/* Mouse init timeout */
107  * before the PS/2 mouse is ready
133  * to a function with group commands (e.g. wheel-mouse detection).
219 	 * Start the wheel-mouse detection code.  First, we look  in vuidmice_start_wdc_or_setres()
222 	 * device ID, a wheel mouse will return an ID of 0x03.  in vuidmice_start_wdc_or_setres()
255 	 * Later the PS/2 mouse maybe re-attach, so here  in VUID_OPEN()
279 	 * the wheel mouse sample commands, so if we're in any of  in VUID_INIT_TIMEOUT()
281 	 * a timeout, assume the mouse cannot handle the extended  in VUID_INIT_TIMEOUT()
282 	 * (wheel mouse) commands.  in VUID_INIT_TIMEOUT()
289 		 * We overload 'inited' to mark the PS/2 mouse  in VUID_INIT_TIMEOUT()
319 	 * mouse in the only state from which it can recover -- waiting for an  in VUID_INIT_TIMEOUT()
330 		/* Try to reset the mouse again */  in VUID_INIT_TIMEOUT()
396 		 * the PS/2 mouse data format doesn't have any sort of sync  in VUID_QUEUE()
481 			 * mouse-related modules for this patch.  in VUID_QUEUE()
491 			 * This byte is delta Y.  If this is a plain mouse,  in VUID_QUEUE()
537 				 * PS/2 mouse reports -ve values  in VUID_QUEUE()
542 				 * The mouse reports 0xf when scrolled up  in VUID_QUEUE()
545 				 * Microsoft and Black Cat mouse only  in VUID_QUEUE()
567 				 * The mouse return -7 and +7 when it  in VUID_QUEUE()
584 			 * If we can peek at the next mouse character, and  in VUID_QUEUE()
625 				 * A response with length 1 from the mouse  in VUID_QUEUE()
653 			 * 0xAA 0x00.  If the mouse doesn't send that, mouse8042  in VUID_QUEUE()
655 			 * resetting the mouse.  in VUID_QUEUE()
727 				 * game.  One is a Mouse Systems mouse OEM'ed  in VUID_QUEUE()
732 				 * compiled as vuid3ps2 and the mouse doesn't  in VUID_QUEUE()
734 				 * mouse.  This effectively disables  in VUID_QUEUE()