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
|
#ifndef _HIDIO_H
#define _HIDIO_H
#include <stdio.h>
#include <sys/syslog.h>
#ifdef __linux__
#include <linux/types.h>
#endif /* __linux__ */
#ifdef PD
#include <m_pd.h>
#else
#include "ext.h"
#include "ext_obex.h"
#include "commonsyms.h"
/* some Pd specific types need definition in Max */
typedef long t_int;
typedef double t_float;
typedef double t_floatarg;
typedef void t_outlet;
typedef void t_clock;
#define MAXPDSTRING 512
#define pd_error(x, b) error(b)
#define SETSYMBOL SETSYM
#endif
/*
* this is automatically generated from linux/input.h by
* make-arrays-from-input.h.pl to be the cross-platform event types and codes
*/
#include "input_arrays.h"
#define HIDIO_MAJOR_VERSION 0
#define HIDIO_MINOR_VERSION 0
/* static char *version = "$Revision: 1.2 $"; */
/*------------------------------------------------------------------------------
* GLOBAL DEFINES
*/
#define DEFAULT_DELAY 5
/* this is set to simplify data structures (arrays instead of linked lists) */
#define MAX_DEVICES 128
/* I think 64 is the limit per device as defined in the OS <hans@at.or.at> */
#define MAX_ELEMENTS 64
/* this is limited so that the object doesn't cause a click getting too many
* events from the OS's event queue */
#define MAX_EVENTS_PER_POLL 64
/*------------------------------------------------------------------------------
* CLASS DEF
*/
typedef struct _hidio
{
t_object x_obj;
#ifndef PD
void *x_obex;
#endif
t_int x_fd;
void *x_ff_device;
short x_device_number;
short x_instance;
t_int x_has_ff;
t_int x_started;
t_int x_device_open;
t_int x_delay;
t_clock *x_clock;
t_outlet *x_data_outlet;
t_outlet *x_status_outlet;
} t_hidio;
/*------------------------------------------------------------------------------
* GLOBAL VARIABLES
*/
/* count the number of instances of this object so that certain free()
* functions can be called only after the final instance is detroyed.
*/
extern t_int hidio_instance_count;
/* this is used to test for the first instance to execute */
extern double last_execute_time[MAX_DEVICES];
extern unsigned short global_debug_level;
/* built up when the elements of an open device are enumerated */
typedef struct _hid_element
{
#ifdef __linux__
/* GNU/Linux store type and code to compare against */
__u16 linux_type;
__u16 linux_code;
#endif /* __linux__ */
#ifdef _WIN32
/* this should be pointers to the UsagePage and Usage */
#endif /* _WIN32 */
#ifdef __APPLE__
void *pHIDElement; // pRecElement on Mac OS X; ... on Windows
#endif /* __APPLE__ */
t_symbol *type; // Linux "type"; HID "usagePage"
t_symbol *name; // Linux "code"; HID "usage"
unsigned char polled; // is it polled or queued? (maybe only on Mac OS X?)
unsigned char relative; // relative data gets output everytime
t_int min; // from device report
t_int max; // from device report
t_float instance; // usage page/usage instance # ([absolute throttle 2 163(
t_int value; // output the sum of events in a poll for relative axes
t_int previous_value; //only output on change on abs and buttons
} t_hid_element;
/* mostly for status querying */
extern unsigned short device_count;
/* store element structs to eliminate symbol table lookups, etc. */
extern t_hid_element *element[MAX_DEVICES][MAX_ELEMENTS];
/* number of active elements per device */
extern unsigned short element_count[MAX_DEVICES];
/*------------------------------------------------------------------------------
* FUNCTION PROTOTYPES FOR DIFFERENT PLATFORMS
*/
/* support functions */
void debug_print(t_int debug_level, const char *fmt, ...);
void debug_error(t_hidio *x, t_int debug_level, const char *fmt, ...);
void hidio_output_event(t_hidio *x, t_hid_element *output_data);
/* generic, cross-platform functions implemented in a separate file for each
* platform
*/
t_int hidio_open_device(t_hidio *x, short device_number);
t_int hidio_close_device(t_hidio *x);
void hidio_build_device_list(void);
void hidio_get_events(t_hidio *x);
void hidio_print(t_hidio* x); /* print info to the console */
void hidio_platform_specific_info(t_hidio* x); /* device info on the status outlet */
void hidio_platform_specific_free(t_hidio *x);
short get_device_number_by_id(unsigned short vendor_id, unsigned short product_id);
/* TODO: this function should probably accept the single unsigned for the combined usage_page and usage, instead of two separate variables */
short get_device_number_from_usage(short device_number,
unsigned short usage_page,
unsigned short usage);
/* cross-platform force feedback functions */
t_int hidio_ff_autocenter(t_hidio *x, t_float value);
t_int hidio_ff_gain(t_hidio *x, t_float value);
t_int hidio_ff_motors(t_hidio *x, t_float value);
t_int hidio_ff_continue(t_hidio *x);
t_int hidio_ff_pause(t_hidio *x);
t_int hidio_ff_reset(t_hidio *x);
t_int hidio_ff_stopall(t_hidio *x);
// these are just for testing...
t_int hidio_ff_fftest (t_hidio *x, t_float value);
void hidio_ff_print(t_hidio *x);
#endif /* #ifndef _HIDIO_H */
|
