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Add support for evdev code parsing
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Use libevdev to parse the evdev code names which makes the tablet files
a bit easier to understand. Every current user of libwacom has a
libevdev dependency already anyway so adding it doesn't hurt us.
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whot committed Oct 22, 2023
1 parent 127b99a commit cc7cc58
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Showing 49 changed files with 72 additions and 59 deletions.
2 changes: 1 addition & 1 deletion .github/workflows/main.yml
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Expand Up @@ -4,7 +4,7 @@ on: [ push, pull_request ]

env:
CFLAGS: "-Werror -Wno-error=missing-field-initializers"
UBUNTU_PACKAGES: libgudev-1.0-dev libxml++2.6-dev valgrind tree python3-pip python3-setuptools libevdev2
UBUNTU_PACKAGES: libgudev-1.0-dev libxml++2.6-dev valgrind tree python3-pip python3-setuptools libevdev-dev
PIP_PACKAGES: meson ninja libevdev pyudev pytest yq

jobs:
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2 changes: 1 addition & 1 deletion data/bamboo-0fg-m-p-alt.tablet
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Expand Up @@ -57,4 +57,4 @@ Ring=true

[Buttons]
Top=A;B;C;D
EvdevCodes=0x116;0x115;0x110;0x111
EvdevCodes=BTN_BACK;BTN_FORWARD;BTN_LEFT;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-0fg-s-p-alt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -58,4 +58,4 @@ Ring=true

[Buttons]
Top=A;B;C;D
EvdevCodes=0x116;0x115;0x110;0x111
EvdevCodes=BTN_BACK;BTN_FORWARD;BTN_LEFT;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-0fg-s-p.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -58,4 +58,4 @@ Ring=true

[Buttons]
Top=A;B;C;D
EvdevCodes=0x116;0x115;0x110;0x111
EvdevCodes=BTN_BACK;BTN_FORWARD;BTN_LEFT;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-16fg-m-pt.tablet
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Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x110;0x115;0x116;0x111
EvdevCodes=BTN_LEFT;BTN_FORWARD;BTN_BACK;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-16fg-s-p.tablet
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Expand Up @@ -22,4 +22,4 @@ Stylus=true
Reversible=true
Touch=false
Buttons=0
EvdevCodes=0x110;0x115;0x116;0x111
EvdevCodes=BTN_LEFT;BTN_FORWARD;BTN_BACK;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-16fg-s-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x110;0x115;0x116;0x111
EvdevCodes=BTN_LEFT;BTN_FORWARD;BTN_BACK;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-16fg-s-t.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -25,4 +25,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x110;0x115;0x116;0x111
EvdevCodes=BTN_LEFT;BTN_FORWARD;BTN_BACK;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-2fg-fun-m-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -38,4 +38,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-2fg-fun-s-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -38,4 +38,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-2fg-s-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -38,4 +38,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-2fg-s-t.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -37,4 +37,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-4fg-fun-m.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-4fg-fun-s.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-4fg-s-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-4fg-s-t.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -25,4 +25,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-4fg-se-m-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-4fg-se-s-pt.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x111;0x116;0x115;0x110
EvdevCodes=BTN_RIGHT;BTN_BACK;BTN_FORWARD;BTN_LEFT
2 changes: 1 addition & 1 deletion data/bamboo-pad-wireless.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -21,4 +21,4 @@ Buttons=2

[Buttons]
Bottom=A;B
EvdevCodes=0x110;0x111
EvdevCodes=BTN_LEFT;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/bamboo-pad.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -21,4 +21,4 @@ Buttons=2

[Buttons]
Bottom=A;B
EvdevCodes=0x110;0x111
EvdevCodes=BTN_LEFT;BTN_RIGHT
2 changes: 1 addition & 1 deletion data/ek-remote.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ StatusLEDs=Ring

[Buttons]
Left=A;B;C;D;E;F;G;H;I;J;K;L;M;N;O;P;Q;R
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107;0x108;0x109;0x130;0x131;0x132;0x133;0x134;0x135;0x126;0x127
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7;BTN_8;BTN_9;0x130;0x131;0x132;0x133;0x134;0x135;0x126;0x127

#Note that though this device has 3 ring modes
#this mode selection does not function the same
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2 changes: 1 addition & 1 deletion data/gaomon-s620.tablet
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Expand Up @@ -26,4 +26,4 @@ Buttons=4

[Buttons]
Left=A;B;C;D
EvdevCodes=0x100;0x101;0x102;0x103
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3
2 changes: 1 addition & 1 deletion data/graphire4-6x8.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -31,4 +31,4 @@ Buttons=2

[Buttons]
Top=A;B
EvdevCodes=0x116;0x115
EvdevCodes=BTN_BACK;BTN_FORWARD
2 changes: 1 addition & 1 deletion data/huion-h1060p.tablet
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Expand Up @@ -23,4 +23,4 @@ Buttons=12

[Buttons]
Left=A;B;C;D;E;F;G;H;I;J;K;L
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107;0x108;0x109;0x130;0x131
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7;BTN_8;BTN_9;0x130;0x131
2 changes: 1 addition & 1 deletion data/huion-h420.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -31,4 +31,4 @@ Buttons=3

[Buttons]
Left=A;B;C
EvdevCodes=0x100;0x101;0x102;
EvdevCodes=BTN_0;BTN_1;BTN_2;
2 changes: 1 addition & 1 deletion data/huion-h610-pro.tablet
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Expand Up @@ -21,4 +21,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/huion-h640p.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -32,4 +32,4 @@ Buttons=6

[Buttons]
Left=A;B;C;D;E;F
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5
2 changes: 1 addition & 1 deletion data/huion-h950p.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -22,4 +22,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/huion-hs611.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -53,4 +53,4 @@ Buttons=10

[Buttons]
Left=A;B;C;D;E;F;G;H;I;J
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107;0x108;0x109
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7;BTN_8;BTN_9
2 changes: 1 addition & 1 deletion data/huion-kamvas-13.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -43,4 +43,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/huion-new-1060-plus.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -21,4 +21,4 @@ Buttons=12

[Buttons]
Left=A;B;C;D;E;F;G;H;I;J;K;L
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107;0x108;0x109;0x130;0x131
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7;BTN_8;BTN_9;0x130;0x131
2 changes: 1 addition & 1 deletion data/intuos-m-p3-wl.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -35,4 +35,4 @@ Buttons=4

[Buttons]
Top=A;B;C;D
EvdevCodes=0x100;0x101;0x102;0x103
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3
2 changes: 1 addition & 1 deletion data/intuos-m-p3.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -35,4 +35,4 @@ Buttons=4

[Buttons]
Top=A;B;C;D
EvdevCodes=0x100;0x101;0x102;0x103
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3
2 changes: 1 addition & 1 deletion data/intuos-s-p3-android.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -40,4 +40,4 @@ Buttons=4

[Buttons]
Top=A;B;C;D
EvdevCodes=0x100;0x101;0x102;0x103
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3
2 changes: 1 addition & 1 deletion data/intuos-s-p3-wl.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -35,4 +35,4 @@ Buttons=4

[Buttons]
Top=A;B;C;D
EvdevCodes=0x100;0x101;0x102;0x103
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3
2 changes: 1 addition & 1 deletion data/intuos-s-p3.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -35,4 +35,4 @@ Buttons=4

[Buttons]
Top=A;B;C;D
EvdevCodes=0x100;0x101;0x102;0x103
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3
4 changes: 2 additions & 2 deletions data/kamvas-pro-13.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
#
# Touch Strip Map:
# NOTE: not enabled because i couldnt get it to work
# evtest reports 0x108 (BTN_8), 0x109 (BTN_9), 0x130 (BTN_SOUTH)
# evtest reports BTN_8, BTN_9, BTN_SOUTH
#
# *-----------------------*
# | |
Expand Down Expand Up @@ -54,4 +54,4 @@ Buttons=5

[Buttons]
Left=A;B;C;D;E
EvdevCodes=0x100;0x101;0x102;0x103;0x104
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4
2 changes: 1 addition & 1 deletion data/wacom.example
Original file line number Diff line number Diff line change
Expand Up @@ -178,7 +178,7 @@ Top=
Bottom=
# The evdev codes for the buttons in order A, B, C, ...
# The code must be defined for all buttons or this line is ignored
EvdevCodes=0x110;0x112;0x111;0x113
EvdevCodes=BTN_LEFT;BTN_MIDDLE;BTN_RIGHT;BTN_SIDE

#####################
# ADVANCED FEATURES #
Expand Down
2 changes: 1 addition & 1 deletion data/xp-pen-artist12.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -28,4 +28,4 @@ Buttons=6

[Buttons]
Left=A;B;C;D;E;F
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5
2 changes: 1 addition & 1 deletion data/xp-pen-deco-l.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -28,4 +28,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/xp-pen-deco-mini7.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -22,4 +22,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/xp-pen-deco-mw.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -26,5 +26,5 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7

2 changes: 1 addition & 1 deletion data/xp-pen-deco-pro-mw.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -40,4 +40,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/xp-pen-deco-pro-sw.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -27,4 +27,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/xp-pen-deco01-v2.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -28,4 +28,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
2 changes: 1 addition & 1 deletion data/xp-pen-star03.tablet
Original file line number Diff line number Diff line change
Expand Up @@ -21,4 +21,4 @@ Buttons=8

[Buttons]
Left=A;B;C;D;E;F;G;H
EvdevCodes=0x100;0x101;0x102;0x103;0x104;0x105;0x106;0x107
EvdevCodes=BTN_0;BTN_1;BTN_2;BTN_3;BTN_4;BTN_5;BTN_6;BTN_7
15 changes: 11 additions & 4 deletions libwacom/libwacom-database.c
Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@
#include "libwacomint.h"
#include "util-strings.h"
#include <linux/input-event-codes.h>
#include <libevdev/libevdev.h>

#include <assert.h>
#include <glib.h>
Expand Down Expand Up @@ -455,26 +456,32 @@ set_button_codes_from_string(WacomDevice *device, char **strvals)

for (guint i = 0; i < g_hash_table_size(device->buttons); i++) {
char key = 'A' + i;
int code;
int code = -1;
WacomButton *button = g_hash_table_lookup(device->buttons, GINT_TO_POINTER(key));
const char *str = strvals[i];

if (!button) {
g_error("%s: Button %c is not defined, ignoring all codes\n",
device->name, key);
goto out;
}

if (!strvals[i]) {
if (!str) {
g_error ("%s: Missing EvdevCode for button %d, ignoring all codes\n",
device->name, i);
goto out;
} else if (g_str_has_prefix(str, "BTN")) {
code = libevdev_event_code_from_code_name(str);
} else if (!safe_atoi_base(str, &code, 16)) {
code = -1;
}

if (!safe_atoi_base (strvals[i], &code, 16) || code < BTN_MISC || code >= BTN_DIGI) {
if (code < BTN_MISC || code >= BTN_DIGI) {
g_warning ("%s: Invalid EvdevCode %s for button %c, ignoring all codes\n",
device->name, strvals[i], key);
device->name, str, key);
goto out;
}

button->code = code;
}
success = true;
Expand Down
12 changes: 8 additions & 4 deletions libwacom/libwacom.c
Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,7 @@
#include <stdio.h>
#include <string.h>
#include <gudev/gudev.h>

#include <linux/input-event-codes.h>
#include <libevdev/libevdev.h>

#if !HAVE_G_MEMDUP2
#define g_memdup2 g_memdup
Expand Down Expand Up @@ -754,9 +753,14 @@ static void print_button_evdev_codes(int fd, const WacomDevice *device)
unsigned idx = 0;

for (b = 'A'; b < 'A' + nbuttons; b++) {
unsigned int code = libwacom_get_button_evdev_code(device, b);
const char *str = libevdev_event_code_get_name(EV_KEY, code);

assert(idx < sizeof(buf) - 30);
idx += snprintf(buf + idx, 30, "0x%x;",
libwacom_get_button_evdev_code(device, b));
if (str)
idx += snprintf(buf + idx, 30, "%s;", str);
else
idx += snprintf(buf + idx, 30, "0x%x;", code);
}
dprintf(fd, "EvdevCodes=%s\n", buf);
}
Expand Down
10 changes: 6 additions & 4 deletions meson.build
Original file line number Diff line number Diff line change
Expand Up @@ -50,9 +50,10 @@ cflags = cc.get_supported_arguments(
add_project_arguments(cflags, language: 'c')

# Dependencies
pkgconfig = import('pkgconfig')
dep_gudev = dependency('gudev-1.0')
dep_glib = dependency('glib-2.0')
pkgconfig = import('pkgconfig')
dep_gudev = dependency('gudev-1.0')
dep_glib = dependency('glib-2.0')
dep_libevdev = dependency('libevdev')

includes_include = include_directories('include')
includes_src = include_directories('libwacom')
Expand All @@ -75,7 +76,8 @@ src_libwacom = [

deps_libwacom = [
dep_gudev,
dep_glib
dep_glib,
dep_libevdev,
]

inc_libwacom = [
Expand Down

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