path: root/xc/programs/Xserver/hw/dec/ws/ext_device.c

/***********************************************************

Copyright 1990, 1998  The Open Group

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Copyright 1990 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
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******************************************************************/

/*
 * This file holds the hook routines for adding extension input devices.
 *
 *	Jeffrey Hsu, Digital Equipment Corporation,
 *
 */

/* $TOG: ext_device.c /main/4 1998/02/10 12:44:58 kaleb $ */

#ifdef XINPUT

#include <stdio.h>
#include <sys/types.h>
#include <sys/file.h>
#include <sys/time.h>
#include <sys/tty.h>
#include <sys/devio.h>

#include "misc.h"
#include "X.h"
#define NEED_EVENTS
#include "Xproto.h"
#include "scrnintstr.h"
#include "pixmap.h"
#include "input.h"
#include "cursorstr.h"
#include "regionstr.h"
#include "resource.h"
#include "dixstruct.h"
#include <sys/workstation.h>
#include <sys/inputdevice.h>
#include <sys/wsdevice.h>
#include "ws.h"

#include <sys/tablet.h>
#include <sys/pcm.h>
#include <sys/termio.h>

#include "XI.h"			/* for Absolute and Relative #define */
#include "XIproto.h"		/* for deviceKeyButtonPointer */

/* XXX copied from ws_io.c, get it into some header file somewhere */
#define MOTION_BUFFER_SIZE 100
extern int wsGetMotionEvents();

extern Bool commandLinePairMatch();	/* secret function */

extern int DeviceButtonPress, DeviceButtonRelease, DeviceButtonRelease,
	DeviceMotionNotify, ProximityIn, ProximityOut, DeviceValuator;

static DevicePtr        wsTablet, wsButtonBox, wsDialBox;

static void wsButtonBoxControl(), wsDialBoxControl();
static int wsButtonBoxProc(), wsDialBoxProc(), wsTabletProc();

int tbFd;	/* tablet file descriptor */
int pcmFd;

/* return TRUE if recognized device type */
Bool
ExtProcessInputEvents(x, e)
xEvent *x;
ws_event *e;
{

	/*
	 * X Input Extension events can have more than one event structure per
	 * device event
	 */
	xEvent eventarray[3];	/* make this 3 until some device needs more */
	deviceValuator *vev;
	deviceValuator valuatorevent;
	int eventcount;

	deviceKeyButtonPointer *inputEv = (deviceKeyButtonPointer *) x;
	tablet_event *tabev = (tablet_event *) e;
	dial_event *dialev = (dial_event *) e;

	switch (e->device_type) {
	  case STABLET_DEVICE:
	    switch (e->type) {
		case BUTTON_DOWN_TYPE: 
		    x->u.u.type = DeviceButtonPress;
		    break;
		case BUTTON_UP_TYPE: 
		    x->u.u.type = DeviceButtonRelease;
		    break;
		case MOTION_TYPE: 
		    x->u.u.type = DeviceMotionNotify;
		    break;
		case PROXIMITY_IN:
		    x->u.u.type = ProximityIn;
		    break;
		case PROXIMITY_OUT:
		    x->u.u.type = ProximityOut;
		    break;
		default: 
		    printf("Unknown tablet event = %d\n", e->type);
	    	    return(TRUE);
	    }
	    vev = (deviceValuator *) &eventarray[1];
	    vev->type = DeviceValuator;
	    vev->num_valuators = 2;
	    vev->first_valuator = 0;
	    vev->valuator0 = tabev->axis_data[0];
	    vev->valuator1 = tabev->axis_data[1];
	    vev->device_state = e->e.pointer.buttons;
	    vev->deviceid = e->device;
	    eventcount = 2;
	    inputEv->deviceid = e->device | MORE_EVENTS;
	    eventarray[0] = *x;
	    (*wsTablet->processInputProc) (eventarray, wsTablet, eventcount);
	    break;
	  case BUTTONBOX_DEVICE:
	    switch (e->type) {
		case BUTTON_DOWN_TYPE: 
		    x->u.u.type = DeviceButtonPress;
		    break;
		case BUTTON_UP_TYPE: 
		    x->u.u.type = DeviceButtonRelease;
		    break;
		default: 
		    printf("Unknown button box event = %d\n", e->type);
	    	    return(TRUE);
	    }
	    (*wsButtonBox->processInputProc) (x, wsButtonBox, 1);
	    break;
	  case KNOBBOX_DEVICE:
	    switch (e->type) {
		case MOTION_TYPE:
		    x->u.u.type = DeviceMotionNotify;
		    break;
		default: 
		    printf("Unknown dial box event = %d\n", e->type);
	    	    return(TRUE);
	    }

	    vev = (deviceValuator *) &eventarray[1];
	    vev->type = DeviceValuator;
	    vev->num_valuators = 6;
	    vev->first_valuator = 0;
	    vev->valuator0 = dialev->axis_data[0];
	    vev->valuator1 = dialev->axis_data[1];
	    vev->valuator2 = dialev->axis_data[2];
	    vev->valuator3 = dialev->axis_data[3];
	    vev->valuator4 = dialev->axis_data[4];
	    vev->valuator5 = dialev->axis_data[5];
	    vev->device_state = e->e.pointer.buttons;
	    vev->deviceid = e->device;

	    vev = (deviceValuator *) &eventarray[2];
	    vev->type = DeviceValuator;
	    vev->num_valuators = 2;
	    vev->first_valuator = 6;
	    vev->valuator0 = dialev->axis_data[6];
	    vev->valuator1 = dialev->axis_data[7];
	    vev->device_state = e->e.pointer.buttons;
	    vev->deviceid = e->device;

	    eventcount = 3;
	    inputEv->deviceid = e->device;
	    eventarray[0] = *x;
	    (*wsDialBox->processInputProc) (eventarray, wsDialBox, eventcount);
	    break;
	  default:
	    return FALSE;
	}
	return TRUE;
}

int
ExtddxProcessArgument (argc, argv, i)
register int argc;
register char *argv[];
register int i;
{

	int argind=i;
	int skip = 0;

	if (strcmp(argv[argind], "-tb") == 0) {
	  if (++argind < argc)  {
	    /* defer processing to InitInput */
	    /* should think up cleaner solution XXX */
	    skip = 2;
	  }
	  else return 0;
	} else if (strcmp(argv[argind], "-pcm") == 0) {
	  if (++argind < argc)  {
	    /* defer processing to InitInput */
	    /* should think up cleaner solution XXX */
	    skip = 2;
	  }
	  else return 0;
	}

	return skip;

}

void
ExtddxUseMsg()
{
	ErrorF("-tb <tty number n>	open /dev/tty0n for tablet\n");
	ErrorF("-pcm <tty number n>	open /dev/tty0n for pcm\n");
}

void
ExtInitInput(argc, argv)
{

	DevicePtr t;
	char *tabletline, buf[256], *pcmline;
	int linenumber;
	int i;
	struct termio termio;

	if (commandLinePairMatch( argc, argv, "-tb", &tabletline)) {
	  sscanf(tabletline, "%d", &linenumber);
	  sprintf(buf, "/dev/tty0%d", linenumber);
	  if ((tbFd = open(buf,  O_RDWR, 0)) < 0) {
	    Error("couldn't open device");
	    return;
	  }

	  if (ioctl(tbFd, TCGETA, &termio) < 0) {
	    Error("TCGETA");
	    return;
	  }

	  /* someday I will do this in the line discpline open XXX */
	  termio.c_cflag = (B4800 | PARENB | PARODD | CREAD | CS8);
	  termio.c_iflag &= ~ISTRIP;

	  if (ioctl(tbFd, TCSETA, &termio) < 0) {
	    Error("TCSETA");
	    return;
	  }

	  i = TABLDISC;
	  if (ioctl(tbFd, TIOCSETD, &i) < 0) {
	    Error("couldn't set line discipline");
	    return;
	  }

	  i = 0;
	  if (ioctl(tbFd, BIOSTYPE, &i) < 0) {
	    Error("couldn't set line discipline");
	    return;
	  }

	  t = AddInputDevice(wsTabletProc, TRUE);

	  RegisterOtherDevice(t);

	}

	if (commandLinePairMatch( argc, argv, "-pcm", &pcmline)) {
	  sscanf(pcmline, "%d", &linenumber);
	  sprintf(buf, "/dev/tty0%d", linenumber);
	  if ((pcmFd = open(buf,  O_RDWR, 0)) < 0) {
	    Error("couldn't open device");
	    return;
	  }

	  if (ioctl(pcmFd, TCGETA, &termio) < 0) {
	    Error("TCGETA");
	    return;
	  }

	  /* someday I will do this in the line discpline open XXX */
	  termio.c_cflag =  (B9600 | CREAD | CS8 | CLOCAL);
	  termio.c_iflag &= ~ISTRIP;
	  termio.c_iflag |= IXOFF;

	  if (ioctl(pcmFd, TCSETA, &termio) < 0) {
	    Error("TCSETA");
	    return;
	  }

	  i = PCMDISC;
	  if (ioctl(pcmFd, TIOCSETD, &i) < 0) {
	    Error("couldn't set line discipline");
	    return;
	  }

	  t = AddInputDevice(wsButtonBoxProc, TRUE);
	  RegisterOtherDevice(t);

	  t = AddInputDevice(wsDialBoxProc, TRUE);
	  RegisterOtherDevice(t);
	}

}

void
ExtInitOutput(screenInfo, argc, argv)
ScreenInfo *screenInfo;
int argc;
char **argv;
{
/* nothing to do yet */
}

static void
wsButtonBoxControl(device, ctrl)
DevicePtr device;
LedCtrl *ctrl;
{
	int mask = ctrl->led_values;

	if (ioctl(pcmFd, PIOSETLED, &mask) < 0) {
	  Error("wsButtonBoxControl");
	}
}

static int
wsButtonBoxProc(pDev, onoff, argc, argv)
DevicePtr pDev;
int onoff, argc;
char *argv[];
{
	BYTE map[33];

	int i;
	Atom typeatom;

	switch (onoff)
	{
	  case DEVICE_INIT: 
	    wsButtonBox = pDev;
	    for (i=1; i<=32; i++)
	      map[i] = i;
	    InitButtonClassDeviceStruct(pDev, 32, map);
	    InitLedFeedbackClassDeviceStruct(pDev, wsButtonBoxControl);
	    InitFocusClassDeviceStruct(pDev);
	    typeatom = MakeAtom("BUTTONBOX", 9, FALSE);
	    AssignTypeAndName(pDev, typeatom, "BUTTONBOX");
	    break;
	  case DEVICE_ON: 
	    pDev->on = TRUE;
	    break;
	  case DEVICE_OFF: 
	    pDev->on = FALSE;
	    break;
	  case DEVICE_CLOSE:
	    if (pcmFd) {
	      close(pcmFd);
	      pcmFd = 0;
	    }
	    break;
	}
	return Success;
}

static void
wsDialBoxControl(device, ctrl)
DevicePtr device;
PtrCtrl *ctrl;
{
	struct dial_control control;

	control.smoothing = ctrl->num / ctrl->den;
	control.threshold = ctrl->threshold;

	/*
	   InitPtrFeedbackClassDeviceStruct should not call the control
	     routine for extension devices with defaultPointerControl values,
	     which may be wrong, don't think there is a fix, so live w/ it
	*/

	/* hardware should not freak out when given a threshold of 0
	     and a smoothing factor of 0 */
	if (!control.smoothing)
	  control.smoothing = 1;
	if (!control.threshold)
	  control.threshold = 1;

	if (ioctl(pcmFd, PIOSETKNOB, &control) < 0) {
	  Error("wsDialBoxControl");
	}
}

static int
wsDialBoxProc(pDev, onoff, argc, argv)
DevicePtr pDev;
int onoff, argc;
char *argv[];
{
	Atom typeatom;

	switch (onoff)
	{
	  case DEVICE_INIT: 
	    wsDialBox = pDev;
	    InitValuatorClassDeviceStruct(pDev, 8, wsGetMotionEvents,
		MOTION_BUFFER_SIZE, Relative);
	    InitValuatorAxisStruct(pDev, 0, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 1, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 2, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 3, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 4, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 5, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 6, -32768, 32767, 1);
	    InitValuatorAxisStruct(pDev, 7, -32768, 32767, 1);
	    InitPtrFeedbackClassDeviceStruct(pDev, wsDialBoxControl);
	    InitFocusClassDeviceStruct(pDev);
	    typeatom = MakeAtom("KNOB_BOX", 8, FALSE);
	    AssignTypeAndName(pDev, typeatom, "KNOB_BOX");
	    break;
	  case DEVICE_ON: 
	    pDev->on = TRUE;
	    break;
	  case DEVICE_OFF: 
	    pDev->on = FALSE;
	    break;
	  case DEVICE_CLOSE:
	    if (pcmFd) {
	      close(pcmFd);
	      pcmFd = 0;
	    }
	    break;
	}
	return Success;
}

static int
wsTabletProc(pDev, onoff, argc, argv)
DevicePtr pDev;
int onoff, argc;
char *argv[];
{

	BYTE    map[5];
	Atom typeatom;

	switch (onoff)
	{
	  case DEVICE_INIT: 
	    wsTablet = pDev;
	    map[1] = 1;
	    map[2] = 2;
	    map[3] = 3;
	    map[4] = 4;
	    /* InitPointerDeviceStruct(
		pDev, map, 4, wsGetMotionEvents,
		wsChangeTabletControl, MOTION_BUFFER_SIZE); */
	    InitButtonClassDeviceStruct(pDev, 4, map);
	    InitValuatorClassDeviceStruct(pDev, 2, wsGetMotionEvents,
		MOTION_BUFFER_SIZE, Absolute);
	    InitValuatorAxisStruct(pDev, 0, 0, 2199, 7874);
	    InitValuatorAxisStruct(pDev, 1, 0, 2199, 7874);
	    					/* 200 * 39.37 XXX */
/*	    InitPtrFeedbackClassDeviceStruct(pDev, wsTabletControl); */
	    InitProximityClassDeviceStruct(pDev);
	    InitFocusClassDeviceStruct(pDev);
	    typeatom = MakeAtom("TABLET", 6, FALSE);
	    AssignTypeAndName(pDev, typeatom, "TABLET");
	    break;
	  case DEVICE_ON: 
	    pDev->on = TRUE;
/* only need to select off mouse file descriptor */
/*	    AddEnabledDevice(tbFd);  */
	    break;
	  case DEVICE_OFF: 
	    pDev->on = FALSE;
/*	    RemoveEnabledDevice(tbFd); */
	    break;
	  case DEVICE_CLOSE:
	    close(tbFd);
	    break;
	}
	return Success;
}

#ifdef notdef
void
wsChangeTabletControl(device, ctrl)
    DevicePtr device;
    TabletCtrl   *ctrl;
{
/* XXX */
}
#endif
#endif