1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_USB_USBMS_H
27 #define	_SYS_USB_USBMS_H
28 
29 
30 
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 
35 
36 struct usbmouseinfo {
37 	int	mi_x;		/* current X coordinate */
38 	int	mi_y;		/* current Y coordinate */
39 	int	mi_z;		/* current wheel */
40 	int	mi_buttons;	/* current button status */
41 	struct timeval32 mi_time; /* timestamp */
42 };
43 
44 struct usbmousebuf {
45 	ushort_t mb_size;	/* size (in usbmouseinfo units) of buf */
46 	ushort_t mb_off;	/* current offset in buffer */
47 	struct usbmouseinfo *mb_info; /* current usbmouseinfo */
48 };
49 
50 typedef struct usbms_input {
51 	uint_t		xpos;	/* X position in the sample info */
52 	uint_t		xlen;	/* length of X coordinate */
53 	uint_t		xattr;	/* attribute of X coordinate */
54 	uint_t		ypos;	/* Y position in the sample info */
55 	uint_t		ylen;	/* length of Y coordinate */
56 	uint_t		yattr;	/* attribute of Y coordinate */
57 	uint_t		zpos;	/* wheel data position in the sample info */
58 	uint_t		zlen;	/* length of wheel data */
59 	uint_t		zattr;	/* attribute of wheel data */
60 	uint_t		bpos;	/* button data position in the sample info */
61 	uint_t		tlen;	/* length of the sample info */
62 } usbms_idf;
63 
64 typedef struct usbms_state {
65 	queue_t			*usbms_rq_ptr;   /* pointer to read queue */
66 	queue_t			*usbms_wq_ptr;   /* pointer to write queue */
67 
68 	/* Flag for mouse open/qwait status */
69 
70 	int			usbms_flags;
71 
72 	/*
73 	 * Is an ioctl fails because an mblk wasn't
74 	 * available, the mlbk is saved here.
75 	 */
76 
77 	mblk_t			*usbms_iocpending;
78 
79 	/* mouse software structure from msreg.h */
80 
81 	struct ms_softc		usbms_softc;
82 
83 	/* Previous button byte */
84 
85 	char			usbms_oldbutt;
86 
87 
88 	/* Report descriptor handle received from hid */
89 
90 	hidparser_handle_t	usbms_report_descr_handle;
91 
92 	/*
93 	 * Max pixel delta of jitter controlled. As this number increases
94 	 * the jumpiness of the msd increases, i.e., the coarser the motion
95 	 * for mediumm speeds.
96 	 * jitter_thresh is the maximum number of jitters suppressed. Thus,
97 	 * hz/jitter_thresh is the maximum interval of jitters suppressed. As
98 	 * jitter_thresh increases, a wider range of jitter is suppressed.
99 	 * However, the more inertia the mouse seems to have, i.e., the slower
100 	 * the mouse is to react.
101 	 */
102 
103 	int			usbms_jitter_thresh;
104 
105 	/* Timeout used when mstimeout in effect */
106 
107 	clock_t			usbms_jittertimeout;
108 
109 	/*
110 	 * Measure how many (speed_count) msd deltas exceed threshold
111 	 * (speedlimit). If speedlaw then throw away deltas over speedlimit.
112 	 * This is to keep really bad mice that jump around from getting
113 	 * too far.
114 	 */
115 
116 	/* Threshold above which deltas are thrown out */
117 
118 	int		usbms_speedlimit;
119 
120 	int		usbms_speedlaw;	/* Whether to throw away deltas */
121 
122 	/*  No. of deltas exceeding spd. limit */
123 
124 	int		usbms_speed_count;
125 
126 	int		usbms_iocid;	/* ID of "ioctl" being waited for */
127 	short		usbms_state;	/* button state at last sample */
128 	short		usbms_jitter;	/* state counter for input routine */
129 	timeout_id_t	usbms_timeout_id;	/* id returned by timeout() */
130 	bufcall_id_t	usbms_reioctl_id;	/* id returned by bufcall() */
131 	bufcall_id_t	usbms_resched_id;	/* id returned by bufcall() */
132 	int32_t		usbms_num_buttons;	/* No. of buttons */
133 	int32_t		usbms_num_wheels;	/* No. of wheels */
134 	uchar_t		usbms_protoerr;		/* Error set proto */
135 	ushort_t	usbms_wheel_state_bf;	/* Wheel state bit field */
136 	ushort_t	usbms_wheel_orient_bf;	/* Wheel orientation	*/
137 	int32_t		usbms_rptid;		/* Report id of mouse app */
138 	int32_t		usbms_logical_Xmax;	/* X logical maximum */
139 	int32_t		usbms_logical_Ymax;	/* Y logical maximum */
140 
141 	/* Screen resolution for absolute mouse */
142 
143 	Ms_screen_resolution	usbms_resolution;
144 
145 	/* report the abs mouse event to upper level once */
146 
147 	boolean_t	usbms_rpt_abs;
148 
149 	usbms_idf	usbms_idf;
150 	struct		usbmousebuf *usbms_buf;
151 } usbms_state_t;
152 
153 
154 #define	USBMS_OPEN    0x00000001 /* mouse is open for business */
155 #define	USBMS_QWAIT   0x00000002 /* mouse is waiting for a response */
156 
157 /* Macro to find absolute value */
158 
159 #define	USB_ABS(x)		((x) < 0 ? -(x) : (x))
160 
161 /*
162  * Macro to restrict the value of x to lie between 127 & -127 :
163  * if x > 127 return 127
164  * else if x < -127 return -127
165  * else return x
166  */
167 
168 #define	USB_BYTECLIP(x)	(char)((x) > 127 ? 127 : ((x) < -127 ? -127 : (x)))
169 
170 /*
171  * Default and MAX (supported) number of buttons
172  */
173 
174 #define	USB_MS_DEFAULT_BUTTON_NO	3
175 #define	USB_MS_MAX_BUTTON_NO		8
176 
177 
178 /*
179  * Input routine states. See usbms_input().
180  */
181 #define	USBMS_WAIT_BUTN		0	/* Button byte */
182 #define	USBMS_WAIT_X		1	/* Delta X byte */
183 #define	USBMS_WAIT_Y    	2	/* Delta Y byte */
184 #define	USBMS_WAIT_WHEEL	3	/* Wheel Byte	*/
185 
186 
187 /*
188  * default resolution, 1024x768.
189  */
190 #define	USBMS_DEFAULT_RES_HEIGHT	768
191 #define	USBMS_DEFAULT_RES_WIDTH		1024
192 /*
193  * USB buttons:
194  *		How the device sends it:
195  *		0x01 - Left   button position
196  *		0x02 - Right  button position
197  *		0x04 - Middle button position
198  */
199 
200 
201 #define	USBMS_BUT(i)	1 << (i - 1)
202 
203 /*
204  * These defines are for converting USB button information to the
205  * format that Type 5 mouse sends upstream, which is what the xserver
206  * expects.
207  */
208 
209 #define	USB_NO_BUT_PRESSED	0xFF
210 #define	USB_LEFT_BUT_PRESSED	0xFB
211 #define	USB_RIGHT_BUT_PRESSED	0xFE
212 #define	USB_MIDDLE_BUT_PRESSED	0xFD
213 
214 #define	USB_BUT_PRESSED(i)	~(1 << (i - 1))
215 
216 /*
217  * State structure used for transparent ioctls
218  */
219 
220 typedef struct usbms_iocstate {
221 		int ioc_state;
222 		caddr_t u_addr;
223 } usbms_iocstate_t;
224 
225 /*
226  * Transparent ioctl states
227  */
228 
229 #define	USBMS_GETSTRUCT 1
230 #define	USBMS_GETRESULT	2
231 
232 /*
233  * Private data are initialized to these values
234  */
235 #define	USBMS_JITTER_THRESH	0	/* Max no. of jitters suppressed */
236 #define	USBMS_SPEEDLIMIT	48	/* Threshold for msd deltas */
237 #define	USBMS_SPEEDLAW		0	/* Whether to throw away deltas */
238 #define	USBMS_SPEED_COUNT	0	/* No. of deltas exceeding spd. limit */
239 #define	USBMS_BUF_BYTES		4096	/* Mouse buffer size */
240 #define	USBMS_USAGE_PAGE_BUTTON	0x9	/* Usage Page data value : Button */
241 
242 #define	JITTERRATE		12	/* No of jitters before timeout */
243 
244 /* Jitter Timeout while initialization */
245 #define	JITTER_TIMEOUT		(hz/JITTERRATE)
246 
247 /*
248  * Masks for debug printing
249  */
250 #define	PRINT_MASK_ATTA		0x00000001
251 #define	PRINT_MASK_OPEN 	0x00000002
252 #define	PRINT_MASK_CLOSE	0x00000004
253 #define	PRINT_MASK_SERV		0x00000008
254 #define	PRINT_MASK_IOCTL	0x00000010
255 #define	PRINT_MASK_INPUT_INCR	0x00000020
256 #define	PRINT_MASK_ALL		0xFFFFFFFF
257 
258 #ifdef __cplusplus
259 }
260 #endif
261 
262 #endif	/* _SYS_USB_USBMS_H */
263