1 /*
2 * Copyright © 2015 Red Hat, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #ifndef EVDEV_TABLET_PAD_H
25 #define EVDEV_TABLET_PAD_H
26
27 #include "evdev.h"
28
29 #define LIBINPUT_BUTTONSET_AXIS_NONE 0
30
31 enum pad_status {
32 PAD_NONE = 0,
33 PAD_AXES_UPDATED = bit(0),
34 PAD_BUTTONS_PRESSED = bit(1),
35 PAD_BUTTONS_RELEASED = bit(2),
36 };
37
38 enum pad_axes {
39 PAD_AXIS_NONE = 0,
40 PAD_AXIS_RING1 = bit(0),
41 PAD_AXIS_RING2 = bit(1),
42 PAD_AXIS_STRIP1 = bit(2),
43 PAD_AXIS_STRIP2 = bit(3),
44 };
45
46 struct button_state {
47 unsigned char bits[NCHARS(KEY_CNT)];
48 };
49
50 typedef struct {
51 uint32_t value;
52 } key_or_button_map_t;
53
54 #define map_init(x_) ((x_).value = (uint32_t)-1)
55 #define map_is_unmapped(x_) ((x_).value == (uint32_t)-1)
56 #define map_is_button(x_) (((x_).value & 0xFF000000) == 0)
57 #define map_is_key(x_) (((x_).value & 0xFF000000) != 0)
58 #define map_set_button_map(field_, value_) ((field_).value = value_)
59 #define map_set_key_map(field_, value_) ((field_).value = value_ | 0xFF000000)
60 #define map_value(x_) ((x_).value & 0x00FFFFFF)
61
62 struct pad_dispatch {
63 struct evdev_dispatch base;
64 struct evdev_device *device;
65 unsigned char status;
66 uint32_t changed_axes;
67
68 struct button_state button_state;
69 struct button_state prev_button_state;
70
71 key_or_button_map_t button_map[KEY_CNT];
72 unsigned int nbuttons;
73
74 bool have_abs_misc_terminator;
75
76 struct {
77 struct libinput_device_config_send_events config;
78 enum libinput_config_send_events_mode current_mode;
79 } sendevents;
80
81 struct {
82 struct list mode_group_list;
83 } modes;
84 };
85
86 static inline struct pad_dispatch*
pad_dispatch(struct evdev_dispatch * dispatch)87 pad_dispatch(struct evdev_dispatch *dispatch)
88 {
89 evdev_verify_dispatch_type(dispatch, DISPATCH_TABLET_PAD);
90
91 return container_of(dispatch, struct pad_dispatch, base);
92 }
93
94 static inline struct libinput *
pad_libinput_context(const struct pad_dispatch * pad)95 pad_libinput_context(const struct pad_dispatch *pad)
96 {
97 return evdev_libinput_context(pad->device);
98 }
99
100 int
101 pad_init_leds(struct pad_dispatch *pad, struct evdev_device *device);
102 void
103 pad_destroy_leds(struct pad_dispatch *pad);
104 void
105 pad_button_update_mode(struct libinput_tablet_pad_mode_group *g,
106 unsigned int pressed_button,
107 enum libinput_button_state state);
108 #endif
109