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/***************************************************************************
*
* Multitouch X driver
* Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se>
*
* Licensed under the Academic Free License version 2.1
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
**************************************************************************/
#include "xorg-server.h"
#include <xf86.h>
#include <xf86_OSproc.h>
#include <xf86Xinput.h>
#include <exevents.h>
#include <linux/input.h>
////////////////////////////////////////////////////////////////////////////
//#define BTN_MT_RAW_DATA 0x210 /* multitouch device */
#define BTN_TOOL_PRESS 0x148 /* The trackpad is a physical button */
#define BTN_MT_RAW_DATA 0x14b /* multitouch device */
#define BTN_MT_RAW_FINGER 0x14c /* multitouch device */
#define BTN_TOOL_QUADTAP 0x14f /* Four fingers on trackpad */
#define ABS_MT_TOUCH 0x30
#define ABS_MT_TOUCH_MAJOR 0x30
#define ABS_MT_TOUCH_MINOR 0x31
#define ABS_MT_WIDTH 0x32
#define ABS_MT_WIDTH_MAJOR 0x32
#define ABS_MT_WIDTH_MINOR 0x33
#define ABS_MT_ORIENTATION 0x34
#define ABS_MT_POSITION_X 0x35
#define ABS_MT_POSITION_Y 0x36
typedef int bool;
#define ADDCAP(s, c, x) strcat(s, c->has_##x ? " " #x : "")
////////////////////////////////////////////////////////////////////////////
struct Capabilities {
bool has_left, has_middle;
bool has_right, has_mtdata;
bool has_touch_major, has_touch_minor;
bool has_width_major, has_width_minor;
bool has_orientation, has_dummy;
bool has_position_x, has_position_y;
struct input_absinfo abs_touch_major;
struct input_absinfo abs_touch_minor;
struct input_absinfo abs_width_major;
struct input_absinfo abs_width_minor;
struct input_absinfo abs_orientation;
struct input_absinfo abs_position_x;
struct input_absinfo abs_position_y;
};
////////////////////////////////////////////////////////////////////////////
static int read_capabilities(struct Capabilities *cap, int fd)
{
unsigned long evbits[NBITS(EV_MAX)];
unsigned long absbits[NBITS(ABS_MAX)];
unsigned long keybits[NBITS(KEY_MAX)];
int rc;
memset(cap, 0, sizeof(struct Capabilities));
SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_SYN, sizeof(evbits)), evbits));
if (rc < 0)
return rc;
SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits));
if (rc < 0)
return rc;
SYSCALL(rc = ioctl(fd, EVIOCGBIT(EV_ABS, sizeof(absbits)), absbits));
if (rc < 0)
return rc;
cap->has_left = TEST_BIT(BTN_LEFT, keybits);
cap->has_middle = TEST_BIT(BTN_MIDDLE, keybits);
cap->has_right = TEST_BIT(BTN_RIGHT, keybits);
cap->has_mtdata = TEST_BIT(BTN_MT_RAW_DATA, keybits);
SYSCALL(rc = ioctl(fd, EVIOCGABS(ABS_MT_TOUCH_MAJOR),
&cap->abs_touch_major));
cap->has_touch_major = rc >= 0;
}
static int output_capabilities(const struct Capabilities *cap)
{
char line[1024];
ADDCAP(line, cap, left);
ADDCAP(line, cap, middle);
ADDCAP(line, cap, right);
ADDCAP(line, cap, mtdata);
ADDCAP(line, cap, touch_major);
ADDCAP(line, cap, touch_minor);
ADDCAP(line, cap, width_major);
ADDCAP(line, cap, width_minor);
ADDCAP(line, cap, orientation);
ADDCAP(line, cap, position_x);
ADDCAP(line, cap, position_y);
xf86Msg(X_INFO, "multitouch: caps:%s\n", line);
}
static InputInfoPtr preinit(InputDriverPtr drv, IDevPtr dev, int flags)
{
InputInfoPtr local = xf86AllocateInput(drv, 0);
if (!local)
goto error;
local->name = dev->identifier;
local->type_name = XI_TOUCHPAD;
local->device_control = 0;//DeviceControl;
local->read_input = 0;//ReadInput;
local->control_proc = 0;//ControlProc;
local->close_proc = 0;//CloseProc;
local->switch_mode = 0;//SwitchMode;
local->conversion_proc = 0;//ConvertProc;
local->reverse_conversion_proc = NULL;
local->dev = NULL;
local->private = 0;//priv;
local->private_flags = 0;
local->flags = XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
local->conf_idev = dev;
//local->motion_history_proc = xf86GetMotionEvents;
//local->history_size = 0;
local->always_core_feedback = 0;
xf86CollectInputOptions(local, NULL, NULL);
xf86OptionListReport(local->options);
local->fd = xf86OpenSerial(local->options);
if (local->fd < 0) {
xf86Msg(X_ERROR, "multitouch: cannot open device\n");
goto error;
}
struct Capabilities cap;
read_capabilities(&cap, local->fd);
output_capabilities(&cap);
xf86CloseSerial(local->fd);
local->fd = -1;
local->flags |= XI86_CONFIGURED;
error:
return local;
}
static void uninit(InputDriverPtr drv, InputInfoPtr local, int flags)
{
xf86DeleteInput(local, 0);
}
////////////////////////////////////////////////////////////////////////////
static InputDriverRec MULTITOUCH = {
1,
"multitouch",
NULL,
preinit,
uninit,
NULL,
0
};
static XF86ModuleVersionInfo VERSION = {
"multitouch",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
0, 1, 0,
ABI_CLASS_XINPUT,
ABI_XINPUT_VERSION,
MOD_CLASS_XINPUT,
{0, 0, 0, 0}
};
static pointer setup(pointer module, pointer options, int *errmaj, int *errmin)
{
xf86AddInputDriver(&MULTITOUCH, module, 0);
return module;
}
XF86ModuleData multitouchModuleData = {&VERSION, &setup, NULL };
////////////////////////////////////////////////////////////////////////////
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