Add option to reverse mouse scroll direction

This change adds a ReverseScroll parameter to the configuration, which
if set, will change the direction of the scroll wheel of the virtual
mouse.

Github-Issue: #45

daemon/x52d.conf

@@ -85,6 +85,9 @@ Enabled=yes
 # Speed is proportional to the speed of updates to the virtual mouse
 Speed=0
 
+# ReverseScroll reverses the direction of the virtual scroll wheel
+ReverseScroll=no
+
 ######################################################################
 # Profiles - only valid on Linux
 ######################################################################

daemon/x52d_config.def

@@ -75,6 +75,9 @@ CFG(Mouse, Enabled, mouse_enabled, bool, true)
 // virtual mouse
 CFG(Mouse, Speed, mouse_speed, int, 0)
 
+// ReverseScroll controls the scrolling direction
+CFG(Mouse, ReverseScroll, mouse_reverse_scroll, bool, false)
+
 /**********************************************************************
  * Profiles - only valid on Linux
  *********************************************************************/

daemon/x52d_config.h

@@ -39,6 +39,7 @@ struct x52d_config {
 
     bool mouse_enabled;
     int mouse_speed;
+    bool mouse_reverse_scroll;
 
     bool clutch_enabled;
     bool clutch_latched;
@@ -71,6 +72,7 @@ void x52d_cfg_set_Brightness_MFD(uint16_t param);
 void x52d_cfg_set_Brightness_LED(uint16_t param);
 void x52d_cfg_set_Mouse_Enabled(bool param);
 void x52d_cfg_set_Mouse_Speed(int param);
+void x52d_cfg_set_Mouse_ReverseScroll(bool param);
 void x52d_cfg_set_Profiles_Directory(char* param);
 void x52d_cfg_set_Profiles_ClutchEnabled(bool param);
 void x52d_cfg_set_Profiles_ClutchLatched(bool param);

daemon/x52d_mouse.c

@@ -24,6 +24,7 @@
 
 volatile int mouse_delay = DEFAULT_MOUSE_DELAY;
 volatile int mouse_mult = MOUSE_MULT_FACTOR;
+volatile int mouse_scroll_dir = 1;
 
 void x52d_cfg_set_Mouse_Enabled(bool enabled)
 {
@@ -60,3 +61,15 @@ void x52d_cfg_set_Mouse_Speed(int speed)
     mouse_delay = new_delay;
     mouse_mult = new_mult;
 }
+
+void x52d_cfg_set_Mouse_ReverseScroll(bool enabled)
+{
+    PINELOG_DEBUG(_("Setting mouse reverse scroll to %s"),
+                  enabled ? _("on") : _("off"));
+
+    if (enabled) {
+        mouse_scroll_dir = -1;
+    } else {
+        mouse_scroll_dir = 1;
+    }
+}

daemon/x52d_mouse.h

@@ -14,6 +14,7 @@
 
 extern volatile int mouse_delay;
 extern volatile int mouse_mult;
+extern volatile int mouse_scroll_dir;
 
 #define MOUSE_MULT_FACTOR  4
 

daemon/x52d_mouse_evdev.c

@@ -57,10 +57,10 @@ static int report_wheel(void)
 
     if (scroll_up) {
         // Scroll up event
-        wheel = 1;
+        wheel = 1 * mouse_scroll_dir;
     } else if (scroll_dn) {
         // Scroll down event
-        wheel = -1;
+        wheel = -1 * mouse_scroll_dir;
     }
 
     if (wheel != 0) {

po/libx52.pot

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libx52 0.2.3\n"
 "Report-Msgid-Bugs-To: https://github.com/nirenjan/libx52/issues\n"
-"POT-Creation-Date: 2022-05-16 10:47-0700\n"
+"POT-Creation-Date: 2022-06-05 08:22-0700\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -142,11 +142,13 @@ msgstr ""
 msgid "Unknown LED state %d"
 msgstr ""
 
-#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:31
+#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
+#: daemon/x52d_mouse.c:68
 msgid "off"
 msgstr ""
 
-#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:31
+#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
+#: daemon/x52d_mouse.c:68
 msgid "on"
 msgstr ""
 
@@ -810,21 +812,26 @@ msgstr ""
 msgid "Shutting down X52 I/O driver thread"
 msgstr ""
 
-#: daemon/x52d_mouse.c:30
+#: daemon/x52d_mouse.c:31
 #, c-format
 msgid "Setting mouse enable to %s"
 msgstr ""
 
-#: daemon/x52d_mouse.c:46
+#: daemon/x52d_mouse.c:47
 #, c-format
 msgid "Ignoring mouse speed %d outside supported range (0-%d)"
 msgstr ""
 
-#: daemon/x52d_mouse.c:58
+#: daemon/x52d_mouse.c:59
 #, c-format
 msgid "Setting mouse speed to %d (delay %d ms, multiplier %f)"
 msgstr ""
 
+#: daemon/x52d_mouse.c:67
+#, c-format
+msgid "Setting mouse reverse scroll to %s"
+msgstr ""
+
 #: daemon/x52d_mouse_evdev.c:43
 #, c-format
 msgid "Error writing mouse button event (button %d, state %d)"

po/xx_PL.po

@@ -7,15 +7,15 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libx52 0.2.3\n"
 "Report-Msgid-Bugs-To: https://github.com/nirenjan/libx52/issues\n"
-"POT-Creation-Date: 2022-05-16 10:47-0700\n"
+"POT-Creation-Date: 2022-06-05 08:22-0700\n"
-"PO-Revision-Date: 2021-11-04 15:35-0700\n"
+"PO-Revision-Date: 2022-06-05 08:51-0700\n"
 "Last-Translator: Nirenjan Krishnan <nirenjan@gmail.com>\n"
 "Language-Team: Dummy Language for testing i18n\n"
 "Language: xx_PL\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Generator: Poedit 3.0\n"
+"X-Generator: Poedit 3.0.1\n"
 
 #: libx52/x52_strerror.c:23 libx52io/io_strings.c:101
 msgid "Success"
@@ -142,11 +142,13 @@ msgstr "YYay-MMay-DDay"
 msgid "Unknown LED state %d"
 msgstr "Unknownay EDLay atestay %d"
 
-#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:31
+#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
+#: daemon/x52d_mouse.c:68
 msgid "off"
 msgstr "offay"
 
-#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:31
+#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
+#: daemon/x52d_mouse.c:68
 msgid "on"
 msgstr "onay"
 
@@ -862,21 +864,26 @@ msgstr "Erroray %d initializingay I/O iverdray eadthray: %s"
 msgid "Shutting down X52 I/O driver thread"
 msgstr "Uttingshay ownday X52 I/O iverdray eadthray"
 
-#: daemon/x52d_mouse.c:30
+#: daemon/x52d_mouse.c:31
 #, c-format
 msgid "Setting mouse enable to %s"
 msgstr "Ettingsay ousemay enableay otay %s"
 
-#: daemon/x52d_mouse.c:46
+#: daemon/x52d_mouse.c:47
 #, c-format
 msgid "Ignoring mouse speed %d outside supported range (0-%d)"
 msgstr "Ignoringay ousemay eedspay %d outsideay upportedsay angeray (0-%d)"
 
-#: daemon/x52d_mouse.c:58
+#: daemon/x52d_mouse.c:59
 #, c-format
 msgid "Setting mouse speed to %d (delay %d ms, multiplier %f)"
 msgstr "Ettingsay ousemay eedspay otay %d (elayday %d ms, ultipliermay %f)"
 
+#: daemon/x52d_mouse.c:67
+#, c-format
+msgid "Setting mouse reverse scroll to %s"
+msgstr "Ettingsay ousemay everseray ollscray otay %s"
+
 #: daemon/x52d_mouse_evdev.c:43
 #, c-format
 msgid "Error writing mouse button event (button %d, state %d)"