faf2b2aa |
1 | /* |
2 | * (C) GraÅžvydas "notaz" Ignotas, 2011 |
3 | * |
4 | * This work is licensed under the terms of any of these licenses |
5 | * (at your option): |
6 | * - GNU GPL, version 2 or later. |
7 | * - GNU LGPL, version 2.1 or later. |
8 | * See the COPYING file in the top-level directory. |
9 | */ |
10 | |
11 | #include <stdio.h> |
12 | #include <tslib.h> |
13 | |
14 | #include "common/input.h" |
15 | #include "in_tsbutton.h" |
16 | |
17 | #define IN_TSBUTTON_PREFIX "tsbutton:" |
18 | #define IN_TSBUTTON_COUNT 4 |
19 | static int tsbutton_down_id; |
20 | static int last_tsbutton_id; |
21 | |
22 | #define TS_WIDTH 320 |
23 | #define TS_HEIGHT 240 |
24 | |
25 | // HACK: stealing this from plugin_lib |
26 | extern void *tsdev; |
27 | extern int (*pts_read)(struct tsdev *dev, struct ts_sample *sample, int nr); |
28 | extern int (*pts_fd)(struct tsdev *dev); |
29 | |
30 | static const char * const in_tsbutton_keys[IN_TSBUTTON_COUNT] = { |
31 | "TS1", "TS2", "TS3", "TS4", |
32 | }; |
33 | |
34 | static void in_tsbutton_probe(void) |
35 | { |
36 | struct tsdev *dev = tsdev; |
37 | if (dev == NULL) { |
38 | fprintf(stderr, "in_tsbutton_probe: missing tsdev\n"); |
39 | return; |
40 | } |
41 | |
42 | in_register(IN_TSBUTTON_PREFIX "touchscreen as buttons", |
43 | pts_fd(dev), NULL, IN_TSBUTTON_COUNT, in_tsbutton_keys, 0); |
44 | } |
45 | |
46 | static const char * const * |
47 | in_tsbutton_get_key_names(int *count) |
48 | { |
49 | *count = IN_TSBUTTON_COUNT; |
50 | return in_tsbutton_keys; |
51 | } |
52 | |
53 | static int update_button(void) |
54 | { |
55 | struct tsdev *dev = tsdev; |
56 | struct ts_sample sample; |
57 | int sx = 0, sy = 0, sp = 0, updated = 0; |
58 | |
59 | if (dev == NULL) |
60 | return -1; |
61 | |
62 | while (pts_read(dev, &sample, 1) > 0) { |
63 | sx = sample.x; |
64 | sy = sample.y; |
65 | sp = sample.pressure; |
66 | updated = 1; |
67 | } |
68 | |
69 | if (updated) { |
70 | if (sp == 0) |
71 | tsbutton_down_id = -1; |
72 | else { |
73 | // 0 1 |
74 | // 2 3 |
75 | tsbutton_down_id = 0; |
76 | if (sx > TS_WIDTH / 2) |
77 | tsbutton_down_id++; |
78 | if (sy > TS_HEIGHT / 2) |
79 | tsbutton_down_id += 2; |
80 | } |
81 | } |
82 | |
83 | return 0; |
84 | } |
85 | |
86 | static int in_tsbutton_update(void *drv_data, const int *binds, int *result) |
87 | { |
88 | int ret, t; |
89 | |
90 | ret = update_button(); |
91 | if (ret != 0) |
92 | return ret; |
93 | |
94 | if (tsbutton_down_id >= 0) |
95 | for (t = 0; t < IN_BINDTYPE_COUNT; t++) |
96 | result[t] |= binds[IN_BIND_OFFS(tsbutton_down_id, t)]; |
97 | |
98 | return 0; |
99 | } |
100 | |
101 | static int in_tsbutton_update_keycode(void *data, int *is_down) |
102 | { |
103 | int ret, ret_kc = -1, ret_down = 0; |
104 | |
105 | ret = update_button(); |
106 | if (ret != 0) |
107 | return ret; |
108 | |
109 | if (tsbutton_down_id == last_tsbutton_id) |
110 | return -1; |
111 | |
112 | if (tsbutton_down_id >= 0) { |
113 | if (last_tsbutton_id >= 0) { |
114 | ret_kc = last_tsbutton_id; |
115 | last_tsbutton_id = -1; |
116 | } |
117 | else { |
118 | ret_down = 1; |
119 | ret_kc = tsbutton_down_id; |
120 | last_tsbutton_id = tsbutton_down_id; |
121 | } |
122 | } |
123 | else { |
124 | ret_kc = last_tsbutton_id; |
125 | last_tsbutton_id = -1; |
126 | } |
127 | |
128 | if (is_down != NULL) |
129 | *is_down = ret_down; |
130 | |
131 | return ret_kc; |
132 | } |
133 | |
134 | static const in_drv_t in_tsbutton_drv = { |
135 | .prefix = IN_TSBUTTON_PREFIX, |
136 | .probe = in_tsbutton_probe, |
137 | .get_key_names = in_tsbutton_get_key_names, |
138 | .update = in_tsbutton_update, |
139 | .update_keycode = in_tsbutton_update_keycode, |
140 | }; |
141 | |
142 | void in_tsbutton_init(void) |
143 | { |
144 | tsbutton_down_id = last_tsbutton_id = -1; |
145 | in_register_driver(&in_tsbutton_drv); |
146 | } |
147 | |