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mirror of https://code.videolan.org/videolan/vlc synced 2024-09-16 16:02:54 +02:00
vlc/modules/control/unimotion.c
2007-09-10 18:56:52 +00:00

310 lines
8.7 KiB
C

/*
* UniMotion - Unified Motion detection for Apple portables.
*
* Copyright (c) 2006 Lincoln Ramsay. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation Inc. 59 Temple Place, Suite 330, Boston MA 02111-1307 USA
*/
/*
* HISTORY of Motion
* Written by Christian Klein
* Modified for iBook compatibility by Pall Thayer
* Modified for Hi Res Powerbook compatibility by Pall Thayer
* Modified for MacBook Pro compatibility by Randy Green
* Disparate forks unified into UniMotion by Lincoln Ramsay
*/
// This license applies to the portions created by Cristian Klein.
/* motion.c
*
* a little program to display the coords returned by
* the powerbook motion sensor
*
* A fine piece of c0de, brought to you by
*
* ---===---
* *** teenage mutant ninja hero coders ***
* ---===---
*
* All of the software included is copyrighted by Christian Klein <chris@5711.org>.
*
* Copyright 2005 Christian Klein. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author must not be used to endorse or promote
* products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifdef __APPLE__
#include "unimotion.h"
#include <IOKit/IOKitLib.h>
#include <CoreFoundation/CoreFoundation.h>
#include <stdint.h>
enum data_type {
PB_IB,
MBP
};
struct pb_ib_data {
int8_t x;
int8_t y;
int8_t z;
int8_t pad[57];
};
struct mbp_data {
int16_t x;
int16_t y;
int16_t z;
int8_t pad[34];
};
union motion_data {
struct pb_ib_data pb_ib;
struct mbp_data mbp;
};
static int set_values(int type, int *kernFunc, char **servMatch, int *dataType)
{
switch ( type ) {
case powerbook:
*kernFunc = 21;
*servMatch = "IOI2CMotionSensor";
*dataType = PB_IB;
break;
case ibook:
*kernFunc = 21;
*servMatch = "IOI2CMotionSensor";
*dataType = PB_IB;
break;
case highrespb:
*kernFunc = 21;
*servMatch = "PMUMotionSensor";
*dataType = PB_IB;
break;
case macbookpro:
*kernFunc = 5;
*servMatch = "SMCMotionSensor";
*dataType = MBP;
break;
default:
return 0;
}
return 1;
}
static int probe_sms(int kernFunc, char *servMatch, int dataType, void *data)
{
kern_return_t result;
mach_port_t masterPort;
io_iterator_t iterator;
io_object_t aDevice;
io_connect_t dataPort;
IOItemCount structureInputSize;
IOByteCount structureOutputSize;
union motion_data inputStructure;
union motion_data *outputStructure;
outputStructure = (union motion_data *)data;
result = IOMasterPort(MACH_PORT_NULL, &masterPort);
CFMutableDictionaryRef matchingDictionary = IOServiceMatching(servMatch);
result = IOServiceGetMatchingServices(masterPort, matchingDictionary, &iterator);
if (result != KERN_SUCCESS) {
//fputs("IOServiceGetMatchingServices returned error.\n", stderr);
return 0;
}
aDevice = IOIteratorNext(iterator);
IOObjectRelease(iterator);
if (aDevice == 0) {
//fputs("No motion sensor available\n", stderr);
return 0;
}
result = IOServiceOpen(aDevice, mach_task_self(), 0, &dataPort);
IOObjectRelease(aDevice);
if (result != KERN_SUCCESS) {
//fputs("Could not open motion sensor device\n", stderr);
return 0;
}
switch ( dataType ) {
case PB_IB:
structureInputSize = sizeof(struct pb_ib_data);
structureOutputSize = sizeof(struct pb_ib_data);
break;
case MBP:
structureInputSize = sizeof(struct mbp_data);
structureOutputSize = sizeof(struct mbp_data);
break;
default:
return 0;
}
memset(&inputStructure, 0, sizeof(union motion_data));
memset(outputStructure, 0, sizeof(union motion_data));
result = IOConnectMethodStructureIStructureO(dataPort, kernFunc, structureInputSize,
&structureOutputSize, &inputStructure, outputStructure);
IOServiceClose(dataPort);
if (result != KERN_SUCCESS) {
//puts("no coords");
return 0;
}
return 1;
}
int detect_sms()
{
int kernFunc;
char *servMatch;
int dataType;
union motion_data data;
int i;
for ( i = 1; ; i++ ) {
if ( !set_values(i, &kernFunc, &servMatch, &dataType) )
break;
if ( probe_sms(kernFunc, servMatch, dataType, &data) )
return i;
}
return unknown;
}
int read_sms_raw(int type, int *x, int *y, int *z)
{
int kernFunc;
char *servMatch;
int dataType;
union motion_data data;
if ( !set_values(type, &kernFunc, &servMatch, &dataType) )
return 0;
if ( probe_sms(kernFunc, servMatch, dataType, &data) ) {
switch ( dataType ) {
case PB_IB:
if ( x ) *x = data.pb_ib.x;
if ( y ) *y = data.pb_ib.y;
if ( z ) *z = data.pb_ib.z;
break;
case MBP:
if ( x ) *x = data.mbp.x;
if ( y ) *y = data.mbp.y;
if ( z ) *z = data.mbp.z;
break;
default:
return 0;
}
return 1;
}
return 0;
}
int read_sms(int type, int *x, int *y, int *z)
{
int _x, _y, _z;
int xoff, yoff, zoff;
Boolean ok;
int ret;
ret = read_sms_raw(type, &_x, &_y, &_z);
if ( !ret )
return 0;
static CFStringRef app = CFSTR("com.ramsayl.UniMotion");
static CFStringRef xoffstr = CFSTR("x_offset");
static CFStringRef yoffstr = CFSTR("y_offset");
static CFStringRef zoffstr = CFSTR("z_offset");
xoff = CFPreferencesGetAppIntegerValue(xoffstr, app, &ok);
if ( ok ) _x += xoff;
yoff = CFPreferencesGetAppIntegerValue(yoffstr, app, &ok);
if ( ok ) _y += yoff;
zoff = CFPreferencesGetAppIntegerValue(zoffstr, app, &ok);
if ( ok ) _z += zoff;
*x = _x;
*y = _y;
*z = _z;
return ret;
}
int read_sms_real(int type, double *x, double *y, double *z)
{
int _x, _y, _z;
int xscale, yscale, zscale;
int ret;
Boolean ok;
ret = read_sms_raw(type, &_x, &_y, &_z);
if ( !ret )
return 0;
static CFStringRef app = CFSTR("com.ramsayl.UniMotion");
static CFStringRef xscalestr = CFSTR("x_scale");
static CFStringRef yscalestr = CFSTR("y_scale");
static CFStringRef zscalestr = CFSTR("z_scale");
xscale = CFPreferencesGetAppIntegerValue(xscalestr, app, &ok);
if ( !ok ) return 0;
yscale = CFPreferencesGetAppIntegerValue(yscalestr, app, &ok);
if ( !ok ) return 0;
zscale = CFPreferencesGetAppIntegerValue(zscalestr, app, &ok);
if ( !ok ) return 0;
*x = _x / (double)xscale;
*y = _y / (double)yscale;
*z = _z / (double)zscale;
return 1;
}
#endif