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/*
* Copyright 1995-2002 by Frederic Lepied, France. <Lepied@XFree86.org>
* Copyright 2002-2007 by Ping Cheng, Wacom Technology. <pingc@wacom.com>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Frederic Lepied not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Frederic Lepied makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* FREDERIC LEPIED DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL FREDERIC LEPIED BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "xf86Wacom.h"
#include "wcmSerial.h"
#include "wcmFilter.h"
static Bool isdv4Detect(LocalDevicePtr);
static Bool isdv4Init(LocalDevicePtr);
static void isdv4InitISDV4(WacomCommonPtr, const char* id, float version);
static int isdv4GetRanges(LocalDevicePtr);
static int isdv4StartTablet(LocalDevicePtr);
static int isdv4Parse(WacomCommonPtr common, const unsigned char* data);
WacomDeviceClass gWacomISDV4Device =
{
isdv4Detect,
isdv4Init,
xf86WcmReadPacket,
};
static WacomModel isdv4General =
{
"General ISDV4",
isdv4InitISDV4,
NULL, /* resolution not queried */
isdv4GetRanges, /* query ranges */
NULL, /* reset not supported */
NULL, /* tilt automatically enabled */
NULL, /* suppress implemented in software */
NULL, /* link speed unsupported */
isdv4StartTablet, /* start tablet */
isdv4Parse,
xf86WcmHysteresisFilter, /* input filtering */
};
/*****************************************************************************
* isdv4Detect -- Test if the attached device is ISDV4.
****************************************************************************/
static Bool isdv4Detect(LocalDevicePtr local)
{
WacomDevicePtr priv = (WacomDevicePtr) local->private;
WacomCommonPtr common = priv->common;
return (common->wcmForceDevice == DEVICE_ISDV4) ? 1 : 0;
}
/*****************************************************************************
* isdv4Init --
****************************************************************************/
static Bool isdv4Init(LocalDevicePtr local)
{
int err;
WacomDevicePtr priv = (WacomDevicePtr)local->private;
WacomCommonPtr common = priv->common;
DBG(1, ErrorF("initializing ISDV4 tablet\n"));
/* Try 19200 first */
if (xf86WcmSetSerialSpeed(local->fd, common->wcmISDV4Speed) < 0)
return !Success;
/* Send stop command to the tablet */
err = xf86WcmWrite(local->fd, WC_ISDV4_STOP, strlen(WC_ISDV4_STOP));
if (err == -1)
{
ErrorF("Wacom xf86WcmWrite error : %s\n", strerror(errno));
return !Success;
}
/* Wait 250 mSecs */
if (xf86WcmWait(250))
return !Success;
return xf86WcmInitTablet(local,&isdv4General,"ISDV4", common->wcmVersion);
}
/*****************************************************************************
* isdv4InitISDV4 -- Setup the device
****************************************************************************/
static void isdv4InitISDV4(WacomCommonPtr common, const char* id, float version)
{
DBG(2, ErrorF("initializing as ISDV4 model\n"));
/* set parameters */
common->wcmProtocolLevel = 4;
common->wcmPktLength = 9; /* length of a packet */
common->wcmResolX = 2540; /* tablet X resolution in points/inch */
common->wcmResolY = 2540; /* tablet Y resolution in points/inch */
common->wcmTPCButton = 1; /* Tablet PC buttons on by default */
common->wcmTPCButtonDefault = 1;
common->tablet_id = 0x90;
}
static int isdv4GetRanges(LocalDevicePtr local)
{
char data[BUFFER_SIZE];
int maxtry = MAXTRY, nr;
WacomCommonPtr common = ((WacomDevicePtr)(local->private))->common;
DBG(2, ErrorF("getting ISDV4 Ranges\n"));
/* Send query command to the tablet */
do
{
nr = xf86WcmWrite(local->fd, WC_ISDV4_QUERY, strlen(WC_ISDV4_QUERY));
if ((nr == -1) && (errno != EAGAIN))
{
ErrorF("Wacom xf86WcmWrite error : %s", strerror(errno));
return !Success;
}
maxtry--;
} while ((nr == -1) && maxtry);
if (maxtry == 0)
{
ErrorF("Wacom unable to xf86WcmWrite request query command "
"after %d tries\n", MAXTRY);
return !Success;
}
/* Read the control data */
maxtry = MAXTRY;
do
{
if ((nr = xf86WcmWaitForTablet(local->fd)) > 0)
{
nr = xf86WcmRead(local->fd, data, 11);
if ((nr == -1) && (errno != EAGAIN))
{
ErrorF("Wacom xf86WcmRead error : %s\n", strerror(errno));
return !Success;
}
}
maxtry--;
} while ( nr <= 0 && maxtry );
if (maxtry == 0 && nr <= 0 )
{
ErrorF("Wacom unable to read ISDV4 control data "
"after %d tries\n", MAXTRY);
return !Success;
}
/* Control data bit check */
if ( !(data[0] & 0x40) )
{
/* Try 38400 now */
if (common->wcmISDV4Speed != 38400)
{
common->wcmISDV4Speed = 38400;
return isdv4Init(local);
}
else
{
ErrorF("Wacom Query ISDV4 error magic error \n");
return !Success;
}
}
common->wcmMaxZ = ( data[5] | ((data[6] & 0x07) << 7) );
common->wcmMaxX = ( (data[1] << 9) | (data[2] << 2)
| ( (data[6] & 0x60) >> 5) );
common->wcmMaxY = ( (data[3] << 9) | (data[4] << 2 )
| ( (data[6] & 0x18) >> 3) );
common->wcmVersion = ( data[10] | (data[9] << 7) );
return Success;
}
static int isdv4StartTablet(LocalDevicePtr local)
{
int err;
/* Tell the tablet to start sending coordinates */
err = xf86WcmWrite(local->fd, WC_ISDV4_SAMPLING, (strlen(WC_ISDV4_SAMPLING)));
if (err == -1)
{
ErrorF("Wacom xf86WcmWrite error : %s\n", strerror(errno));
return !Success;
}
return Success;
}
static int isdv4Parse(WacomCommonPtr common, const unsigned char* data)
{
WacomDeviceState* last = &common->wcmChannel[0].valid.state;
WacomDeviceState* ds;
int n, cur_type;
if ((n = xf86WcmSerialValidate(common,data)) > 0)
{
return n;
}
else
{
/* Coordinate data bit check */
if (data[0] & 0x40)
return common->wcmPktLength;
}
/* pick up where we left off, minus relative values */
ds = &common->wcmChannel[0].work;
RESET_RELATIVE(*ds);
ds->proximity = (data[0] & 0x20);
/* x and y in "normal" orientetion (wide length is X) */
ds->x = (((int)data[6] & 0x60) >> 5) | ((int)data[2] << 2) |
((int)data[1] << 9);
ds->y = (((int)data[6] & 0x18) >> 3) | ((int)data[4] << 2) |
((int)data[3] << 9);
/* pressure */
ds->pressure = (((data[6] & 0x07) << 7) | data[5] );
/* buttons */
ds->buttons = (data[0] & 0x07);
/* check which device we have */
cur_type = (ds->buttons & 4) ? ERASER_ID : STYLUS_ID;
/* first time into prox */
if (!last->proximity && ds->proximity)
ds->device_type = cur_type;
/* check on previous proximity */
else if (cur_type == STYLUS_ID && ds->proximity)
{
/* we were fooled by tip and second
* sideswitch when it came into prox */
if ((ds->device_type != cur_type) &&
(ds->device_type == ERASER_ID))
{
/* send a prox-out for old device */
WacomDeviceState out = { 0 };
xf86WcmEvent(common,0,&out);
ds->device_type = cur_type;
}
}
ds->device_id = (ds->device_type == CURSOR_ID) ? CURSOR_DEVICE_ID : STYLUS_DEVICE_ID;
/* don't send button 3 event for eraser
* button 1 event will be sent by testing presure level
*/
if (ds->device_type == ERASER_ID && ds->buttons&4)
{
ds->buttons = 0;
ds->device_id = ERASER_DEVICE_ID;
}
DBG(8, ErrorF("isdv4Parse %s\n",
ds->device_type == ERASER_ID ? "ERASER " :
ds->device_type == STYLUS_ID ? "STYLUS" : "NONE"));
xf86WcmEvent(common,0,ds);
return common->wcmPktLength;
}
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