From 13caaaff8eda33510bab1a3dc829e7d4b6e60ab9 Mon Sep 17 00:00:00 2001 From: Werner Sembach Date: Fri, 18 Dec 2020 10:34:02 +0100 Subject: [PATCH] Working prototype --- CMakeLists.txt | 13 +++ gsettings-test.c | 34 ++++++ tuxedo-touchpad-switch-deamon.cpp | 179 ++++++++++++++++++++++++++++++ tuxedo-touchpad-switch.cpp | 1 + 4 files changed, 227 insertions(+) create mode 100644 gsettings-test.c create mode 100644 tuxedo-touchpad-switch-deamon.cpp diff --git a/CMakeLists.txt b/CMakeLists.txt index 479762b..c6d21ae 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,3 +1,16 @@ +cmake_minimum_required(VERSION 3.6) + project(tuxedo-touchpad-switch) + +find_package(PkgConfig REQUIRED) + add_executable(tuxedo-touchpad-switch tuxedo-touchpad-switch.cpp) target_link_libraries(tuxedo-touchpad-switch udev) + +pkg_check_modules(GIO2 REQUIRED IMPORTED_TARGET gio-2.0) + +add_executable(gsettings-test gsettings-test.c) +target_link_libraries(gsettings-test PkgConfig::GIO2) + +add_executable(tuxedo-touchpad-switch-deamon tuxedo-touchpad-switch-deamon.cpp) +target_link_libraries(tuxedo-touchpad-switch-deamon udev PkgConfig::GIO2) diff --git a/gsettings-test.c b/gsettings-test.c new file mode 100644 index 0000000..e8d8227 --- /dev/null +++ b/gsettings-test.c @@ -0,0 +1,34 @@ +#include +#include + +void send_events_handler(GSettings *settings, char* key, gpointer user_data) { + const gchar *send_events_string = g_settings_get_string(settings, key); + if (!send_events_string) { + perror("g_settings_get_string"); + } + printf("send_events_string: %s\n", send_events_string); +} + +int main(int argc, char *argv[]) { + GSettings *settings_touchpad = g_settings_new("org.gnome.desktop.peripherals.touchpad"); + if (!settings_touchpad) { + perror("g_settings_new"); + return EXIT_FAILURE; + } + + if (g_signal_connect(settings_touchpad, "changed::send-events", G_CALLBACK(send_events_handler), NULL) < 1) { + perror("g_signal_connect"); + return EXIT_FAILURE; + } + + GMainLoop *app = g_main_loop_new(NULL, TRUE); + if (!app) { + perror("g_main_loop_new"); + return EXIT_FAILURE; + } + + g_main_loop_run(app); + // g_main_loop_run should not return + perror("g_main_loop_run"); + return EXIT_FAILURE; +} diff --git a/tuxedo-touchpad-switch-deamon.cpp b/tuxedo-touchpad-switch-deamon.cpp new file mode 100644 index 0000000..ea9defd --- /dev/null +++ b/tuxedo-touchpad-switch-deamon.cpp @@ -0,0 +1,179 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include + +const char *bus_str(int bus); + +static int get_touchpad_hidraw_devices(std::vector *devnodes) { + struct udev *udev_context = udev_new(); + if (!udev_context) { + perror("udev_new"); + return -1; + } + + struct udev_enumerate *hidraw_devices = udev_enumerate_new(udev_context); + if (!hidraw_devices) { + perror("udev_enumerate_new"); + udev_unref(udev_context); + return -1; + } + + if (udev_enumerate_add_match_subsystem(hidraw_devices, "hidraw") < 0) { + perror("udev_enumerate_add_match_subsystem"); + udev_enumerate_unref(hidraw_devices); + udev_unref(udev_context); + return -1; + } + + if (udev_enumerate_scan_devices(hidraw_devices) < 0) { + perror("udev_enumerate_scan_devices"); + udev_enumerate_unref(hidraw_devices); + udev_unref(udev_context); + return -1; + } + + struct udev_list_entry *hidraw_devices_iterator = udev_enumerate_get_list_entry(hidraw_devices); + if (!hidraw_devices_iterator) { + udev_enumerate_unref(hidraw_devices); + udev_unref(udev_context); + return -1; + } + struct udev_list_entry *hidraw_device_entry; + udev_list_entry_foreach(hidraw_device_entry, hidraw_devices_iterator) { + if (strstr(udev_list_entry_get_name(hidraw_device_entry), "i2c-UNIW0001")) { + struct udev_device *hidraw_device = udev_device_new_from_syspath(udev_context, udev_list_entry_get_name(hidraw_device_entry)); + if (!hidraw_device) { + perror("udev_device_new_from_syspath"); + continue; + } + + std::string devnode = udev_device_get_devnode(hidraw_device); + devnodes->push_back(devnode); + + udev_device_unref(hidraw_device); + } + } + + udev_enumerate_unref(hidraw_devices); + udev_unref(udev_context); + + return devnodes->size();; +} + +void send_events_handler(GSettings *settings, const char* key, gpointer user_data) { + const gchar *send_events_string = g_settings_get_string(settings, key); + if (!send_events_string) { + perror("g_settings_get_string"); + return; + } + + std::vector devnodes; + int touchpad_count = get_touchpad_hidraw_devices(&devnodes); + if (touchpad_count < 0) { + perror("get_touchpad_hidraw_devices"); + return; + } + if (touchpad_count == 0) { + printf("No compatible touchpads found.\n"); + return; + } + + for (auto it = devnodes.begin(); it != devnodes.end(); ++it) { + int hidraw = open((*it).c_str(), O_RDWR|O_NONBLOCK); + if (hidraw < 0) { + perror("open"); + continue; + } + + char buffer[2] = {0x07, 0x03}; + if (send_events_string[0] == 'd') { + buffer[1] = 0x00; + } + int result = ioctl(hidraw, HIDIOCSFEATURE(sizeof(buffer)/sizeof(buffer[0])), buffer); + if (result < 0) { + perror("ioctl"); + close(hidraw); + continue; + } + + close(hidraw); + } +} + +void gracefull_exit(int signum) { + GSettings *settings_touchpad = g_settings_new("org.gnome.desktop.peripherals.touchpad"); + if (!settings_touchpad) { + perror("g_settings_new"); + exit(EXIT_FAILURE); + } + + std::vector devnodes; + int touchpad_count = get_touchpad_hidraw_devices(&devnodes); + if (touchpad_count < 0) { + perror("get_touchpad_hidraw_devices"); + exit(EXIT_FAILURE); + } + if (touchpad_count == 0) { + printf("No compatible touchpads found.\n"); + exit(EXIT_SUCCESS); + } + + for (auto it = devnodes.begin(); it != devnodes.end(); ++it) { + int hidraw = open((*it).c_str(), O_RDWR|O_NONBLOCK); + if (hidraw < 0) { + perror("open"); + continue; + } + + char buffer[2] = {0x07, 0x03}; + int result = ioctl(hidraw, HIDIOCSFEATURE(sizeof(buffer)/sizeof(buffer[0])), buffer); + if (result < 0) { + perror("ioctl"); + close(hidraw); + continue; + } + + close(hidraw); + } + exit(EXIT_SUCCESS); +} + +int main(int argc, char *argv[]) { + signal(SIGINT, gracefull_exit); + signal(SIGTERM, gracefull_exit); + + GSettings *settings_touchpad = g_settings_new("org.gnome.desktop.peripherals.touchpad"); + if (!settings_touchpad) { + perror("g_settings_new"); + return EXIT_FAILURE; + } + + // sync on start + send_events_handler(settings_touchpad, "send-events", NULL); + + if (g_signal_connect(settings_touchpad, "changed::send-events", G_CALLBACK(send_events_handler), NULL) < 1) { + perror("g_signal_connect"); + return EXIT_FAILURE; + } + + GMainLoop *app = g_main_loop_new(NULL, TRUE); + if (!app) { + perror("g_main_loop_new"); + return EXIT_FAILURE; + } + + g_main_loop_run(app); + // g_main_loop_run should not return + perror("g_main_loop_run"); + return EXIT_FAILURE; +} diff --git a/tuxedo-touchpad-switch.cpp b/tuxedo-touchpad-switch.cpp index 6303359..b4a2449 100644 --- a/tuxedo-touchpad-switch.cpp +++ b/tuxedo-touchpad-switch.cpp @@ -76,6 +76,7 @@ int main(int argc, char *argv[]) { std::vector devnodes; int touchpad_count = get_touchpad_hidraw_devices(&devnodes); if (touchpad_count < 0) { + perror("get_touchpad_hidraw_devices"); return EXIT_FAILURE; } if (touchpad_count == 0) {