1 .\" Copyright 1997 John-Mark Gurney. All rights reserved.
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31 .\" .Nd supplies mouse data from syscons for other applications
32 .Nd virtualized mouse driver
37 The console driver, in conjunction with the mouse daemon
39 supplies mouse data to the user process in the standardized way via the
42 This arrangement makes it possible for the console and the user process
44 .Tn X\ Window System )
47 The user process which wants to utilize mouse operation simply opens
52 mouse data from the device via
56 is running, otherwise the user process will not see any data coming from
62 driver has two levels of operation.
63 The current operation level can be referred to and changed via ioctl calls.
65 The level zero, the basic level, is the lowest level at which the driver
66 offers the basic service to user programs.
70 provides horizontal and vertical movement of the mouse
71 and state of up to three buttons in the
75 .Bl -tag -width Byte_1 -compact
77 .Bl -tag -width bit_7 -compact
83 Left button status; cleared if pressed, otherwise set.
85 Middle button status; cleared if pressed, otherwise set.
87 if the device does not have the middle button.
89 Right button status; cleared if pressed, otherwise set.
92 The first half of horizontal movement count in two's complement;
95 The first half of vertical movement count in two's complement;
98 The second half of the horizontal movement count in two's complement;
100 To obtain the full horizontal movement count, add
103 The second half of the vertical movement count in two's complement;
105 To obtain the full vertical movement count, add
109 At the level one, the extended level, mouse data is encoded
110 in the standard format
111 .Dv MOUSE_PROTO_SYSMOUSE
117 .\" driver can somewhat `accelerate' the movement of the pointing device.
118 .\" The faster you move the device, the further the pointer
119 .\" travels on the screen.
120 .\" The driver has an internal variable which governs the effect of
121 .\" the acceleration. Its value can be modified via the driver flag
122 .\" or via an ioctl call.
124 This section describes two classes of
129 driver itself, and commands for the console and the console control drivers.
131 There are a few commands for mouse drivers.
132 General description of the commands is given in
134 Following are the features specific to the
138 .Bl -tag -width MOUSE -compact
139 .It Dv MOUSE_GETLEVEL Ar int *level
140 .It Dv MOUSE_SETLEVEL Ar int *level
141 These commands manipulate the operation level of the mouse driver.
143 .It Dv MOUSE_GETHWINFO Ar mousehw_t *hw
144 Returns the hardware information of the attached device in the following
148 field is guaranteed to be filled with the correct value in the current
153 typedef struct mousehw {
154 int buttons; /* number of buttons */
155 int iftype; /* I/F type */
156 int type; /* mouse/track ball/pad... */
157 int model; /* I/F dependent model ID */
158 int hwid; /* I/F dependent hardware ID */
164 field holds the number of buttons detected by the driver.
169 .Dv MOUSE_IF_SYSMOUSE .
173 tells the device type:
175 .Dv MOUSE_TRACKBALL ,
184 .Dv MOUSE_MODEL_GENERIC
185 at the operation level 0.
187 .Dv MOUSE_MODEL_GENERIC
190 constants at higher operation levels.
196 .It Dv MOUSE_GETMODE Ar mousemode_t *mode
197 The command gets the current operation parameters of the mouse
200 typedef struct mousemode {
201 int protocol; /* MOUSE_PROTO_XXX */
202 int rate; /* report rate (per sec) */
203 int resolution; /* MOUSE_RES_XXX, -1 if unknown */
204 int accelfactor; /* acceleration factor */
205 int level; /* driver operation level */
206 int packetsize; /* the length of the data packet */
207 unsigned char syncmask[2]; /* sync. bits */
213 field tells the format in which the device status is returned
214 when the mouse data is read by the user program.
217 at the operation level zero.
218 .Dv MOUSE_PROTO_SYSMOUSE
219 at the operation level one.
223 is always set to \-1.
227 is always set to \-1.
235 field specifies the length of the data packet.
239 .Bl -tag -width level_0__ -compact
248 holds a bit mask and pattern to detect the first byte of the
251 is the bit mask to be ANDed with a byte.
252 If the result is equal to
254 the byte is likely to be the first byte of the data packet.
255 Note that this method of detecting the first byte is not 100% reliable;
256 thus, it should be taken only as an advisory measure.
258 .It Dv MOUSE_SETMODE Ar mousemode_t *mode
259 The command changes the current operation parameters of the mouse driver
265 Setting values in the other field does not generate
266 error and has no effect.
268 .It Dv MOUSE_READDATA Ar mousedata_t *data
269 .It Dv MOUSE_READSTATE Ar mousedata_t *state
270 These commands are not supported by the
274 .It Dv MOUSE_GETSTATUS Ar mousestatus_t *status
275 The command returns the current state of buttons and
276 movement counts in the structure as defined in
279 .Ss Console and Consolectl Ioctls
280 The user process issues console
282 calls to the current virtual console in order to control
286 also provides a method for the user process to receive a
288 when a button is pressed.
294 calls to the console control device
296 to inform the console of mouse actions including mouse movement
301 commands are defined as
303 which takes the following argument.
308 struct mouse_data data;
309 struct mouse_mode mode;
310 struct mouse_event event;
315 .Bl -tag -width operation -compact
319 .Bl -tag -width MOUSE_MOVEABS -compact
321 Enables and displays mouse cursor.
323 Disables and hides mouse cursor.
325 Moves mouse cursor to position supplied in
328 Adds position supplied in
332 Returns current mouse position in the current virtual console
338 to be delivered to the current process when a button is pressed.
339 The signal to be delivered is set in
343 The above operations are for virtual consoles.
344 The operations defined
345 below are for the console control device and are used by
347 to pass mouse data to the console driver.
349 .Bl -tag -width MOUSE_MOVEABS -compact
351 .It Dv MOUSE_MOTION_EVENT
352 These operations take the information in
355 Mouse data will be sent to the
357 driver if it is open.
359 also processes button press actions and sends signal to the process if
360 requested or performs cut and paste operations
361 if the current console is a text interface.
362 .It Dv MOUSE_BUTTON_EVENT
364 specifies a button and its click count.
365 The console driver will
366 use this information for signal delivery if requested or
367 for cut and paste operations if the console is in text mode.
370 .Dv MOUSE_MOTION_EVENT
372 .Dv MOUSE_BUTTON_EVENT
373 are newer interface and are designed to be used together.
374 They are intended to replace functions performed by
381 .Bl -tag -width data -compact
395 represent movement of the mouse along respective directions.
397 tells the state of buttons.
398 It encodes up to 31 buttons in the bit 0 though
400 If a button is held down, the corresponding bit is set.
412 field specifies the signal to be delivered to the process.
414 one of the values defined in
418 field is currently unused.
430 field specifies a button number as in
432 Only one bit/button is set.
436 holds the click count: the number of times the user has clicked the button
441 .Bl -tag -width /dev/consolectl -compact
442 .It Pa /dev/consolectl
443 device to control the console
445 virtualized mouse driver
458 driver first appeared in
463 manual page was written by
464 .An John-Mark Gurney Aq Mt jmg@FreeBSD.org
466 .An Kazutaka Yokota Aq Mt yokota@FreeBSD.org .