1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/* --------------------------------------------------------------------------*/
/* */
/* read the ambient light 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
#define DEFAULT_DELAYTIME 250
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *ambient_light_sensor_class;
typedef struct _ambient_light_sensor {
t_object x_obj;
t_clock* clock;
t_float delaytime;
t_symbol* sensor_name;
io_service_t io_service;
io_connect_t io_connect;
t_outlet* data_outlet;
t_outlet* status_outlet;
} t_ambient_light_sensor;
enum {
kGetSensorReadingID = 0, // getSensorReading(int *, int *)
kGetLEDBrightnessID = 1, // getLEDBrightness(int, int *)
kSetLEDBrightnessID = 2, // setLEDBrightness(int, int, int *)
kSetLEDFadeID = 3, // setLEDFade(int, int, int, int *)
// other firmware-related functions
// verifyFirmwareID = 4,
// verifyFirmware(int *)
// getFirmwareVersionID = 5,
// getFirmwareVersion(int *)
// other flashing-related functions
// ...
};
/*------------------------------------------------------------------------------
* IMPLEMENTATION
*/
static void ambient_light_sensor_output(t_ambient_light_sensor* x)
{
DEBUG(post("ambient_light_sensor_output"););
kern_return_t kernResult;
IOItemCount scalarInputCount = 0;
IOItemCount scalarOutputCount = 2;
SInt32 left = 0, right = 0;
t_atom output_atoms[2];
if(x->io_connect)
{
kernResult = IOConnectMethodScalarIScalarO(x->io_connect,
kGetSensorReadingID,
scalarInputCount,
scalarOutputCount,
&left,
&right);
if( kernResult == KERN_SUCCESS)
{
SETFLOAT(output_atoms, left);
SETFLOAT(output_atoms + 1, right);
outlet_anything(x->x_obj.ob_outlet, gensym("light"), 2, output_atoms);
}
else if(kernResult == kIOReturnBusy)
pd_error(x,"[ambient_light_sensor]: device busy");
else
pd_error(x,"[ambient_light_sensor]: could not read device");
}
}
static void ambient_light_sensor_info(t_ambient_light_sensor* x)
{
t_atom output_atom;
SETSYMBOL(&output_atom, x->sensor_name);
outlet_anything(x->status_outlet, gensym("sensor"), 1, &output_atom);
SETFLOAT(&output_atom, x->delaytime);
outlet_anything(x->status_outlet, gensym("poll"), 1, &output_atom);
}
static void ambient_light_sensor_tick(t_ambient_light_sensor* x)
{
ambient_light_sensor_output(x);
clock_delay(x->clock, x->delaytime);
}
static void ambient_light_sensor_float(t_ambient_light_sensor* x, t_float f)
{
DEBUG(post("ambient_light_sensor_float"););
if(f < 1.)
clock_unset(x->clock);
else if(f > 1.)
{
x->delaytime = f;
clock_delay(x->clock, x->delaytime);
}
else
clock_delay(x->clock, x->delaytime);
}
static void ambient_light_sensor_free(t_ambient_light_sensor* x)
{
DEBUG(post("ambient_light_sensor_free"););
clock_free(x->clock);
}
static void *ambient_light_sensor_new(void)
{
DEBUG(post("ambient_light_sensor_new"););
t_ambient_light_sensor *x = (t_ambient_light_sensor *)pd_new(ambient_light_sensor_class);
kern_return_t kernResult;
x->io_service = IOServiceGetMatchingService(kIOMasterPortDefault,
IOServiceMatching("AppleLMUController"));
if(x->io_service)
{
post("[ambient_light_sensor]: found AppleLMUController");
x->sensor_name = gensym("AppleLMUController");
}
else
{
error("[ambient_light_sensor]: AppleLMUController not found, trying IOI2CDeviceLMU");
x->io_service = IOServiceGetMatchingService(kIOMasterPortDefault,
IOServiceMatching("IOI2CDeviceLMU"));
if(x->io_service)
{
x->sensor_name = gensym("IOI2CDeviceLMU");
post("[ambient_light_sensor]: found IOI2CDeviceLMU");
}
else
pd_error(x,"[ambient_light_sensor]: no sensor found");
}
kernResult = IOServiceOpen(x->io_service, mach_task_self(), 0, &x->io_connect);
IOObjectRelease(x->io_service);
if (kernResult != KERN_SUCCESS)
{
error("[ambient_light_sensor]: IOServiceOpen(): %d", kernResult);
}
x->clock = clock_new(x, (t_method)ambient_light_sensor_tick);
x->delaytime = DEFAULT_DELAYTIME;
x->data_outlet = outlet_new(&x->x_obj, &s_anything);
x->status_outlet = outlet_new(&x->x_obj, &s_anything);
return (x);
}
void ambient_light_sensor_setup(void)
{
ambient_light_sensor_class = class_new(gensym("ambient_light_sensor"),
(t_newmethod)ambient_light_sensor_new,
(t_method)ambient_light_sensor_free,
sizeof(t_ambient_light_sensor),
CLASS_DEFAULT,
0);
/* add inlet datatype methods */
class_addbang(ambient_light_sensor_class,(t_method) ambient_light_sensor_output);
class_addfloat(ambient_light_sensor_class,(t_method) ambient_light_sensor_float);
class_addmethod(ambient_light_sensor_class,(t_method) ambient_light_sensor_info,
gensym("info"), 0);
}
|
