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/*
* Copyright 2004 Peter Osterlund <petero2@telia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include "eventcomm.h"
#include "synproto.h"
#include "synaptics.h"
#include <xf86.h>
#define SYSCALL(call) while (((call) == -1) && (errno == EINTR))
/*****************************************************************************
* Function Definitions
****************************************************************************/
static void
EventDeviceOnHook(LocalDevicePtr local)
{
/* Try to grab the event device so that data don't leak to /dev/input/mice */
int ret;
SYSCALL(ret = ioctl(local->fd, EVIOCGRAB, (pointer)1));
if (ret < 0) {
xf86Msg(X_WARNING, "%s can't grab event device\n",
local->name, errno);
}
}
static void
EventDeviceOffHook(LocalDevicePtr local)
{
}
static Bool
event_query_is_synaptics(int fd)
{
struct input_id id;
int ret;
SYSCALL(ret = ioctl(fd, EVIOCGID, &id));
if (ret >= 0) {
if ((id.bustype == BUS_I8042) &&
(id.vendor == 0x0002) &&
(id.product == PSMOUSE_SYNAPTICS)) {
return TRUE;
}
}
return FALSE;
}
static Bool
EventQueryHardware(LocalDevicePtr local, struct SynapticsHwInfo *synhw)
{
/* is the synaptics touchpad active? */
if (!event_query_is_synaptics(local->fd))
return FALSE;
xf86Msg(X_PROBED, "%s synaptics touchpad found\n", local->name);
return TRUE;
}
static Bool
SynapticsReadEvent(struct CommData *comm, struct input_event *ev)
{
int i, c;
unsigned char *pBuf, u;
for (i = 0; i < sizeof(struct input_event); i++) {
if ((c = XisbRead(comm->buffer)) < 0)
return FALSE;
u = (unsigned char)c;
pBuf = (unsigned char *)ev;
pBuf[i] = u;
}
return TRUE;
}
static Bool
EventReadHwState(LocalDevicePtr local, struct SynapticsHwInfo *synhw,
struct SynapticsProtocolOperations *proto_ops,
struct CommData *comm, struct SynapticsHwState *hwRet)
{
struct input_event ev;
Bool v;
struct SynapticsHwState *hw = &(comm->hwState);
while (SynapticsReadEvent(comm, &ev)) {
switch (ev.type) {
case EV_SYN:
switch (ev.code) {
case SYN_REPORT:
if (comm->oneFinger)
hw->numFingers = 1;
else if (comm->twoFingers)
hw->numFingers = 2;
else if (comm->threeFingers)
hw->numFingers = 3;
else
hw->numFingers = 0;
*hwRet = *hw;
return TRUE;
}
case EV_KEY:
v = (ev.value ? TRUE : FALSE);
switch (ev.code) {
case BTN_LEFT:
hw->left = v;
break;
case BTN_RIGHT:
hw->right = v;
break;
case BTN_MIDDLE:
hw->middle = v;
break;
case BTN_FORWARD:
hw->up = v;
break;
case BTN_BACK:
hw->down = v;
break;
case BTN_0:
hw->multi[0] = v;
break;
case BTN_1:
hw->multi[1] = v;
break;
case BTN_2:
hw->multi[2] = v;
break;
case BTN_3:
hw->multi[3] = v;
break;
case BTN_4:
hw->multi[4] = v;
break;
case BTN_5:
hw->multi[5] = v;
break;
case BTN_6:
hw->multi[6] = v;
break;
case BTN_7:
hw->multi[7] = v;
break;
case BTN_TOOL_FINGER:
comm->oneFinger = v;
break;
case BTN_TOOL_DOUBLETAP:
comm->twoFingers = v;
break;
case BTN_TOOL_TRIPLETAP:
comm->threeFingers = v;
break;
}
break;
case EV_ABS:
switch (ev.code) {
case ABS_X:
hw->x = ev.value;
break;
case ABS_Y:
hw->y = ev.value;
break;
case ABS_PRESSURE:
hw->z = ev.value;
break;
case ABS_TOOL_WIDTH:
hw->fingerWidth = ev.value;
break;
}
break;
}
}
return FALSE;
}
static Bool
EventAutoDevProbe(LocalDevicePtr local)
{
/* We are trying to find the right eventX device or fall back to
the psaux protocol and the given device from XF86Config */
int i;
for (i = 0; ; i++) {
char fname[64];
int fd = -1;
Bool is_synaptics;
sprintf(fname, "%s/%s%d", DEV_INPUT_EVENT, EVENT_DEV_NAME, i);
SYSCALL(fd = open(fname, O_RDONLY));
if (fd < 0) {
if (errno == ENOENT) {
break;
} else {
continue;
}
}
is_synaptics = event_query_is_synaptics(fd);
SYSCALL(close(fd));
if (is_synaptics) {
xf86Msg(X_PROBED, "%s auto-dev sets Synaptics Device to %s\n",
local->name, fname);
xf86ReplaceStrOption(local->options, "Device", fname);
return TRUE;
}
}
ErrorF("%s no synaptics event device found (checked %d nodes)\n",
local->name, i + 1);
return FALSE;
}
struct SynapticsProtocolOperations event_proto_operations = {
EventDeviceOnHook,
EventDeviceOffHook,
EventQueryHardware,
EventReadHwState,
EventAutoDevProbe
};
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