I have the code working as well as the any other app, but my sensor seems to be broken, the values don't change. now it is time to clean up the code

svn path=/trunk/externals/apple/; revision=9579

1 files changed, 231 insertions, 0 deletions

diff --git a/sudden_motion_sensor.c b/sudden_motion_sensor.c
new file mode 100644
index 0000000..0073484
--- /dev/null
+++ b/sudden_motion_sensor.c
@@ -0,0 +1,231 @@
+/* --------------------------------------------------------------------------*/
+/*                                                                           */
+/* read the sudden motion sensor on Apple Mac OS X                           */
+/* Written by Hans-Christoph Steiner <hans@at.or.at>                         */
+/*                                                                           */
+/* Copyright (c) 2008 Free Software Foundation                               */
+/*                                                                           */
+/* 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.                    */
+/*                                                                           */
+/* See file LICENSE for further informations on licensing terms.             */
+/*                                                                           */
+/* 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,   */
+/* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */
+/*                                                                           */
+/* --------------------------------------------------------------------------*/
+
+#include <mach/mach.h> 
+#include <IOKit/IOKitLib.h> 
+#include <CoreFoundation/CoreFoundation.h> 
+#include <m_pd.h>
+
+#define DEBUG(x)
+//#define DEBUG(x) x 
+
+/*------------------------------------------------------------------------------
+ *  CLASS DEF
+ */
+
+static t_class *sudden_motion_sensor_class;
+
+typedef struct _sudden_motion_sensor {
+    t_object            x_obj;
+    t_symbol*           sensor_name;
+    
+    io_connect_t        io_connect;
+    int                 kernel_function;
+    int                 data_size;
+
+    t_outlet*           data_outlet;
+    t_outlet*           status_outlet;
+} t_sudden_motion_sensor;
+
+struct data {
+	char x;
+	char y;
+	char z;
+	char pad[57];
+};
+
+/*------------------------------------------------------------------------------
+ * IMPLEMENTATION                    
+ */
+
+static void sudden_motion_sensor_output(t_sudden_motion_sensor* x)
+{
+	DEBUG(post("sudden_motion_sensor_output"););
+    kern_return_t kern_result;
+
+	IOItemCount structureInputSize;
+	IOByteCount structureOutputSize;
+
+	struct data inputStructure;
+	struct data outputStructure;
+
+    t_atom output_atoms[3];
+
+
+	structureInputSize = x->data_size;	//sizeof(struct data);
+	structureOutputSize = x->data_size;	//sizeof(struct data);
+
+	memset(&inputStructure, 0, sizeof(inputStructure));
+	memset(&outputStructure, 0, sizeof(outputStructure));
+    
+	kern_result = IOConnectMethodStructureIStructureO(x->io_connect,
+                                                     x->kernel_function,	/* index to kernel function */
+                                                     structureInputSize,
+                                                     &structureOutputSize,
+                                                     &inputStructure,
+                                                     &outputStructure);
+    
+	IOServiceClose(x->io_connect);
+    if( kern_result == KERN_SUCCESS)
+    {
+        SETFLOAT(output_atoms, outputStructure.x);
+        SETFLOAT(output_atoms + 1, outputStructure.y);
+        SETFLOAT(output_atoms + 2, outputStructure.z);
+        outlet_list(x->data_outlet, &s_list, 3, output_atoms);
+    }
+    else if(kern_result == kIOReturnBusy)
+        pd_error(x,"[sudden_motion_sensor]: device busy");
+    else
+        pd_error(x,"[sudden_motion_sensor]: could not read device");
+}
+
+
+static void sudden_motion_sensor_info(t_sudden_motion_sensor* x)
+{
+    t_atom output_atom;
+    SETSYMBOL(&output_atom, x->sensor_name);
+    outlet_anything(x->status_outlet, gensym("sensor"), 1, &output_atom);
+}
+
+
+static int open_sensor(t_sudden_motion_sensor* x,
+                       mach_port_t mach_port, io_iterator_t *io_iterator_ptr, 
+                       const char *sensor_string, int data_size, int kernel_function)
+{
+    kern_return_t kern_result;
+    post("trying %s", sensor_string);
+	kern_result = IOServiceGetMatchingServices(mach_port, IOServiceMatching("IOI2CMotionSensor"), io_iterator_ptr);
+	if (kern_result == KERN_SUCCESS && *io_iterator_ptr != 0) 
+    {
+        post("found %s", sensor_string);
+        x->sensor_name = gensym(sensor_string);
+		x->data_size = data_size;
+		x->kernel_function = kernel_function;
+        return 1;
+	}
+    else
+        return 0;
+}
+
+static void *sudden_motion_sensor_new(void) 
+{
+	DEBUG(post("sudden_motion_sensor_new"););
+	t_sudden_motion_sensor *x = (t_sudden_motion_sensor *)pd_new(sudden_motion_sensor_class);
+	io_iterator_t io_iterator;
+	io_object_t io_object;
+    kern_return_t kern_result;
+	mach_port_t mach_port;
+
+/*
+    kern_result = IOMasterPort(MACH_PORT_NULL, &mach_port);
+	if (kern_result != KERN_SUCCESS) 
+		pd_error(x, "[sudden_motion_sensor]: IOMasterPort(MACH_PORT_NULL, &mach_port)");
+    else if(!open_sensor(x, mach_port, &io_iterator, "IOI2CMotionSensor", 60, 21))
+        if(!open_sensor(x, mach_port, &io_iterator, "PMUMotionSensor", 60, 21))
+            if(!open_sensor(x, mach_port, &io_iterator, "SMCMotionSensor", 40, 5))
+                pd_error(x,"[sudden_motion_sensor]: cannot find motion sensor");
+
+    io_object = IOIteratorNext(io_iterator);
+    IOObjectRelease(io_iterator);
+    if (io_object) 
+    {
+        kern_result = IOServiceOpen(io_object, mach_task_self(), 0, &x->io_connect);
+        IOObjectRelease(io_object);
+        if (kern_result != KERN_SUCCESS) 
+            pd_error(x,"[sudden_motion_sensor]: could not open motion sensor");
+    }
+    else
+        pd_error(x,"[sudden_motion_sensor]: motion sensor not available");
+*/
+
+
+
+	kern_result = IOMasterPort(MACH_PORT_NULL, &mach_port);
+	if (kern_result != KERN_SUCCESS) {
+		error("[sudden_motion_sensor]: IOMasterPort(MACH_PORT_NULL, &mach_port)");
+	}
+
+	//PowerBookG4, iBookG4
+	kern_result = IOServiceGetMatchingServices(mach_port, IOServiceMatching("IOI2CMotionSensor"), &io_iterator);
+	if (kern_result == KERN_SUCCESS && io_iterator != 0) {
+        x->sensor_name = gensym("IOI2CMotionSensor");        
+		x->data_size = 60;
+		x->kernel_function = 21;
+		goto FOUND_SENSOR;
+	}
+	//
+	kern_result = IOServiceGetMatchingServices(mach_port, IOServiceMatching("PMUMotionSensor"), &io_iterator);
+	if (kern_result == KERN_SUCCESS && io_iterator != 0) {
+        x->sensor_name = gensym("PMUMotionSensor");        
+		x->data_size = 60;
+		x->kernel_function = 21;
+		goto FOUND_SENSOR;
+	}
+	//
+	kern_result = IOServiceGetMatchingServices(mach_port, IOServiceMatching("SMCMotionSensor"), &io_iterator);
+	if (kern_result == KERN_SUCCESS && io_iterator != 0) {
+        x->sensor_name = gensym("SMCMotionSensor");        
+		x->data_size = 40;
+		x->kernel_function = 5;
+		goto FOUND_SENSOR;
+	}
+	
+	error("can't find motionsensor\n");
+
+
+FOUND_SENSOR:
+	io_object = IOIteratorNext(io_iterator);
+	IOObjectRelease(io_iterator);
+	
+	if (io_object == 0) {
+		error("[sudden_motion_sensor]: No motion sensor available.");
+	}
+
+	kern_result = IOServiceOpen(io_object, mach_task_self(), 0, &x->io_connect);
+	IOObjectRelease(io_object);
+
+	if (kern_result != KERN_SUCCESS) {
+		error("[sudden_motion_sensor]: Could not open motion sensor device.");
+	}
+
+    x->data_outlet = outlet_new(&x->x_obj, &s_list);
+	x->status_outlet = outlet_new(&x->x_obj, &s_anything);
+
+	return (x);
+}
+
+void sudden_motion_sensor_setup(void) 
+{
+	sudden_motion_sensor_class = class_new(gensym("sudden_motion_sensor"), 
+                                           (t_newmethod)sudden_motion_sensor_new,
+                                           NULL,
+                                           sizeof(t_sudden_motion_sensor), 
+                                           CLASS_DEFAULT, 
+                                           0);
+	/* add inlet datatype methods */
+	class_addbang(sudden_motion_sensor_class,(t_method) sudden_motion_sensor_output);
+	class_addmethod(sudden_motion_sensor_class,(t_method) sudden_motion_sensor_info, 
+                    gensym("info"), 0);
+}