mode switch should work

CMakeLists.txt

@@ -35,6 +35,7 @@ add_executable(${STRAY_EXECUTABLE_NAME}
                   settings.c
                   virt_ds4.c
                   virt_ds5.c
+                  virt_mouse.c
                   devices_status.c
 )
 
@@ -44,6 +45,7 @@ add_executable(${ALLINONE_EXECUTABLE_NAME}
                   settings.c
                   virt_ds4.c
                   virt_ds5.c
+                  virt_mouse.c
                   devices_status.c
                   dev_evdev.c
                   dev_iio.c

dev_out.c

@@ -5,6 +5,7 @@
 #include "message.h"
 #include "virt_ds4.h"
 #include "virt_ds5.h"
+#include "virt_mouse.h"
 
 #include <libconfig.h>
 
@@ -20,6 +21,24 @@ static void handle_incoming_message_gamepad_action(
     } 
 }
 
+static void handle_incoming_message_mouse_event(
+    const dev_out_settings_t *const in_settings,
+    const in_message_mouse_event_t *const msg_payload,
+    mouse_status_t *const inout_mouse
+) {
+    if (msg_payload->type == MOUSE_ELEMENT_X) {
+        inout_mouse->x += msg_payload->value;
+    } else if (msg_payload->type == MOUSE_ELEMENT_Y) {
+        inout_mouse->y += msg_payload->value;
+    } else if (msg_payload->type == MOUSE_BTN_LEFT) {
+        inout_mouse->btn_left = msg_payload->value;
+    } else if (msg_payload->type == MOUSE_BTN_MIDDLE) {
+        inout_mouse->btn_middle = msg_payload->value;
+    } else if (msg_payload->type == MOUSE_BTN_RIGHT) {
+        inout_mouse->btn_right = msg_payload->value;
+    }
+}
+
 static void handle_incoming_message_gamepad_set(
     const dev_out_settings_t *const in_settings,
     const in_message_gamepad_set_element_t *const msg_payload,
@@ -196,6 +215,12 @@ static void handle_incoming_message(
             &msg->data.action,
             &dev_stats->gamepad
         );
+    } else if (msg->type == MOUSE_EVENT) {
+        handle_incoming_message_mouse_event(
+            in_settings,
+            &msg->data.mouse_event,
+            &dev_stats->mouse
+        );
     }
 }
 
@@ -229,14 +254,26 @@ void *dev_out_thread_func(void *ptr) {
             break;
     }
 
+    int current_gamepad_fd = -1;
+    int current_keyboard_fd = -1;
+    int current_mouse_fd = -1;
+
     union {
         virt_dualshock_t ds4;
         virt_dualsense_t ds5;
     } controller_data;
 
-    int current_gamepad_fd = -1;
-    //int current_keyboard_fd = -1;
-    //int current_mouse_fd = -1;
+    virt_mouse_t mouse_data;
+    const int mouse_init_res = virt_mouse_init(&mouse_data);
+    if (mouse_init_res < 0) {
+        fprintf(stderr, "Unable to initialize virtual mouse -- will continue regardless\n");
+    } else {
+        current_mouse_fd = virt_mouse_get_fd(&mouse_data);
+    }
+
+    const int64_t kbd_report_timing_us = 1125;
+    const int64_t mouse_report_timing_us = 950;
+    const int64_t gamepad_report_timing_us = 1250;
 
     if (current_gamepad == GAMEPAD_DUALSENSE) {
         const int ds5_init_res = virt_dualsense_init(&controller_data.ds5);
@@ -260,8 +297,8 @@ void *dev_out_thread_func(void *ptr) {
     gettimeofday(&now, NULL);
 
     struct timeval gamepad_last_hid_report_sent = now;
-    //struct timeval mouse_last_hid_report_sent = now;
-    //struct timeval keyboard_last_hid_report_sent = now;
+    struct timeval mouse_last_hid_report_sent = now;
+    struct timeval keyboard_last_hid_report_sent = now;
 
     uint8_t tmp_buf[256];
 
@@ -272,9 +309,12 @@ void *dev_out_thread_func(void *ptr) {
             break;
         }
 
+        const int64_t gamepad_time_diff_usecs = get_timediff_usec(&gamepad_last_hid_report_sent, &now);
+        const int64_t mouse_time_diff_usecs = get_timediff_usec(&mouse_last_hid_report_sent, &now);
+        const int64_t kbd_time_diff_usecs = get_timediff_usec(&keyboard_last_hid_report_sent, &now);
+
         gettimeofday(&now, NULL);
-        int64_t gamepad_time_diff_usecs = get_timediff_usec(&gamepad_last_hid_report_sent, &now);
-        if (gamepad_time_diff_usecs >= 1250) {
+        if (gamepad_time_diff_usecs >= gamepad_report_timing_us) {
             gamepad_last_hid_report_sent = now;
             
             if (current_gamepad == GAMEPAD_DUALSENSE) {
@@ -284,170 +324,200 @@ void *dev_out_thread_func(void *ptr) {
                 virt_dualshock_compose(&controller_data.ds4, &dev_out_data->dev_stats.gamepad, tmp_buf);
                 virt_dualshock_send(&controller_data.ds4, tmp_buf);
             }
-        } else {
-            FD_ZERO(&read_fds);
 
+            // this does reset the for, ensuring every other device has nothing to say
+            continue;
+        } else if (mouse_time_diff_usecs >= mouse_report_timing_us) {
+            mouse_last_hid_report_sent = now;
+
+            virt_mouse_send(&mouse_data, &dev_out_data->dev_stats.mouse, &now);
+
+            // this does reset the for, ensuring every other device has nothing to say
+            continue;
+        } else if (kbd_time_diff_usecs >= kbd_report_timing_us) {
+            keyboard_last_hid_report_sent = now;
+
+            // this does reset the for, ensuring every other device has nothing to say
+            continue;
+        }
+
+
+        // once here no output device needs to send out its report
+        FD_ZERO(&read_fds);
+
+        if (dev_out_data->communication.type == ipc_unix_pipe) {
+            FD_SET(dev_out_data->communication.endpoint.pipe.in_message_pipe_fd, &read_fds);
+        } else if (dev_out_data->communication.type == ipc_server_sockets) {
+            if (pthread_mutex_lock(&dev_out_data->communication.endpoint.ssocket.mutex) == 0) {
+                for (int i = 0; i < MAX_CONNECTED_CLIENTS; ++i) {
+                    const int fd = dev_out_data->communication.endpoint.ssocket.clients[i];
+                    if (fd > 0) {
+                        FD_SET(fd, &read_fds);
+                    }
+                }
+            
+                pthread_mutex_unlock(&dev_out_data->communication.endpoint.ssocket.mutex);
+            }
+        }
+
+        if (current_mouse_fd > 0) {
+            FD_SET(current_mouse_fd, &read_fds);
+        }
+        
+        // TODO: FD_SET(current_keyboard_fd, &read_fds);
+
+        if (current_gamepad_fd > 0) {
+            FD_SET(current_gamepad_fd, &read_fds);
+        }
+
+        const int64_t timeout_gamepad_time_diff_usecs = gamepad_report_timing_us - gamepad_time_diff_usecs;
+        const int64_t timeout_mouse_time_diff_usecs = mouse_time_diff_usecs - mouse_report_timing_us;
+        const int64_t timeout_kbd_time_diff_usecs = kbd_report_timing_us - kbd_time_diff_usecs;
+
+        int64_t next_timing_out_device_diff_usecs = timeout_kbd_time_diff_usecs < timeout_mouse_time_diff_usecs ? timeout_kbd_time_diff_usecs : timeout_mouse_time_diff_usecs;
+        next_timing_out_device_diff_usecs = next_timing_out_device_diff_usecs < timeout_gamepad_time_diff_usecs ? next_timing_out_device_diff_usecs : timeout_gamepad_time_diff_usecs;
+
+        // calculate the shortest timeout between one of the multiple device will needs to send out its hid report
+        struct timeval timeout = {
+            .tv_sec = (__time_t)next_timing_out_device_diff_usecs / (__time_t)1000000,
+            .tv_usec = (__suseconds_t)next_timing_out_device_diff_usecs % (__suseconds_t)1000000,
+        };
+
+        int ready_fds = select(FD_SETSIZE, &read_fds, NULL, NULL, &timeout);
+        gamepad_status_qam_quirk_ext_time(&dev_out_data->dev_stats.gamepad, &now);
+
+        if (ready_fds == -1) {
+            const int err = errno;
+            fprintf(stderr, "Error reading events for output devices: %d\n", err);
+            continue;
+        } else if (ready_fds == 0) {
+            // timeout: do nothing but continue. next iteration will take care
+            continue;
+        }
+
+        if ((current_gamepad_fd > 0) && (FD_ISSET(current_gamepad_fd, &read_fds))) {
+            const uint64_t prev_leds_events_count = dev_out_data->dev_stats.gamepad.leds_events_count;
+            const uint64_t prev_motors_events_count = dev_out_data->dev_stats.gamepad.rumble_events_count;
+
+            out_message_t out_msgs[4];
+            size_t out_msgs_count = 0;
+            if (current_gamepad == GAMEPAD_DUALSENSE) {
+                virt_dualsense_event(&controller_data.ds5, &dev_out_data->dev_stats.gamepad);
+            } else if (current_gamepad == GAMEPAD_DUALSHOCK) {
+                virt_dualshock_event(&controller_data.ds4, &dev_out_data->dev_stats.gamepad);
+            }
+
+            const uint64_t current_leds_events_count = dev_out_data->dev_stats.gamepad.leds_events_count;
+            const uint64_t current_motors_events_count = dev_out_data->dev_stats.gamepad.rumble_events_count;
+
+            if (current_leds_events_count != prev_leds_events_count) {
+                const out_message_t msg = {
+                    .type = OUT_MSG_TYPE_LEDS,
+                    .data = {
+                        .leds = {
+                            .r = dev_out_data->dev_stats.gamepad.leds_colors[0],
+                            .g = dev_out_data->dev_stats.gamepad.leds_colors[1],
+                            .b = dev_out_data->dev_stats.gamepad.leds_colors[2],
+                        }
+                    }
+                };
+
+                out_msgs[out_msgs_count++] = msg;
+            }
+
+            if (current_motors_events_count != prev_motors_events_count) {
+                const out_message_t msg = {
+                    .type = OUT_MSG_TYPE_RUMBLE,
+                    .data = {
+                        .rumble = {
+                            .motors_left = dev_out_data->dev_stats.gamepad.motors_intensity[0],
+                            .motors_right = dev_out_data->dev_stats.gamepad.motors_intensity[1],
+                        }
+                    }
+                };
+
+                out_msgs[out_msgs_count++] = msg;
+            }
+
+            // send out game-generated events to sockets
             if (dev_out_data->communication.type == ipc_unix_pipe) {
-                FD_SET(dev_out_data->communication.endpoint.pipe.in_message_pipe_fd, &read_fds);
+                for (int msg_idx = 0; msg_idx < out_msgs_count; ++msg_idx) {
+                    const int write_res = write(dev_out_data->communication.endpoint.pipe.out_message_pipe_fd, (void*)&out_msgs[msg_idx], sizeof(out_message_t));
+                    if (write_res != sizeof(out_message_t)) {
+                        fprintf(stderr, "Error in writing out_message to out_message_pipe: %d\n", write_res);
+                    }
+                }
             } else if (dev_out_data->communication.type == ipc_server_sockets) {
                 if (pthread_mutex_lock(&dev_out_data->communication.endpoint.ssocket.mutex) == 0) {
                     for (int i = 0; i < MAX_CONNECTED_CLIENTS; ++i) {
-                        const int fd = dev_out_data->communication.endpoint.ssocket.clients[i];
-                        if (fd > 0) {
-                            FD_SET(fd, &read_fds);
-                        }
-                    }
-                
-                    pthread_mutex_unlock(&dev_out_data->communication.endpoint.ssocket.mutex);
-                }
-            }
-
-            // TODO: FD_SET(current_mouse_fd, &read_fds);
-            // TODO: FD_SET(current_keyboard_fd, &read_fds);
-            FD_SET(current_gamepad_fd, &read_fds);
-
-            // calculate the shortest timeout between one of the multiple device will needs to send out its hid report
-            struct timeval timeout = {
-                .tv_sec = (__time_t)gamepad_time_diff_usecs / (__time_t)1000000,
-                .tv_usec = (__suseconds_t)gamepad_time_diff_usecs % (__suseconds_t)1000000,
-            };
-
-            int ready_fds = select(FD_SETSIZE, &read_fds, NULL, NULL, &timeout);
-            gamepad_status_qam_quirk_ext_time(&dev_out_data->dev_stats.gamepad, &now);
-
-            if (ready_fds == -1) {
-                const int err = errno;
-                fprintf(stderr, "Error reading events for output devices: %d\n", err);
-                continue;
-            } else if (ready_fds == 0) {
-                // timeout: do nothing but continue. next iteration will take care
-                continue;
-            }
-
-            
-            if (FD_ISSET(current_gamepad_fd, &read_fds)) {
-                const uint64_t prev_leds_events_count = dev_out_data->dev_stats.gamepad.leds_events_count;
-                const uint64_t prev_motors_events_count = dev_out_data->dev_stats.gamepad.rumble_events_count;
-
-                out_message_t out_msgs[4];
-                size_t out_msgs_count = 0;
-                if (current_gamepad == GAMEPAD_DUALSENSE) {
-                    virt_dualsense_event(&controller_data.ds5, &dev_out_data->dev_stats.gamepad);
-                } else if (current_gamepad == GAMEPAD_DUALSHOCK) {
-                    virt_dualshock_event(&controller_data.ds4, &dev_out_data->dev_stats.gamepad);
-                }
-
-                const uint64_t current_leds_events_count = dev_out_data->dev_stats.gamepad.leds_events_count;
-                const uint64_t current_motors_events_count = dev_out_data->dev_stats.gamepad.rumble_events_count;
-
-                if (current_leds_events_count != prev_leds_events_count) {
-                    const out_message_t msg = {
-                        .type = OUT_MSG_TYPE_LEDS,
-                        .data = {
-                            .leds = {
-                                .r = dev_out_data->dev_stats.gamepad.leds_colors[0],
-                                .g = dev_out_data->dev_stats.gamepad.leds_colors[1],
-                                .b = dev_out_data->dev_stats.gamepad.leds_colors[2],
-                            }
-                        }
-                    };
-
-                    out_msgs[out_msgs_count++] = msg;
-                }
-
-                if (current_motors_events_count != prev_motors_events_count) {
-                    const out_message_t msg = {
-                        .type = OUT_MSG_TYPE_RUMBLE,
-                        .data = {
-                            .rumble = {
-                                .motors_left = dev_out_data->dev_stats.gamepad.motors_intensity[0],
-                                .motors_right = dev_out_data->dev_stats.gamepad.motors_intensity[1],
-                            }
-                        }
-                    };
-
-                    out_msgs[out_msgs_count++] = msg;
-                }
-
-                // send out game-generated events to sockets
-                if (dev_out_data->communication.type == ipc_unix_pipe) {
-                    for (int msg_idx = 0; msg_idx < out_msgs_count; ++msg_idx) {
-                        const int write_res = write(dev_out_data->communication.endpoint.pipe.out_message_pipe_fd, (void*)&out_msgs[msg_idx], sizeof(out_message_t));
-                        if (write_res != sizeof(out_message_t)) {
-                            fprintf(stderr, "Error in writing out_message to out_message_pipe: %d\n", write_res);
-                        }
-                    }
-                } else if (dev_out_data->communication.type == ipc_server_sockets) {
-                    if (pthread_mutex_lock(&dev_out_data->communication.endpoint.ssocket.mutex) == 0) {
-                        for (int i = 0; i < MAX_CONNECTED_CLIENTS; ++i) {
-                            if (dev_out_data->communication.endpoint.ssocket.clients[i] > 0) {
-                                for (int msg_idx = 0; msg_idx < out_msgs_count; ++msg_idx) {
-                                    const int write_res = write(dev_out_data->communication.endpoint.ssocket.clients[i], (void*)&out_msgs[msg_idx], sizeof(out_message_t));
-                                    if (write_res != sizeof(out_message_t)) {
-                                        fprintf(stderr, "Error in writing out_message to socket number %d: %d\n", i, write_res);
-                                        close(dev_out_data->communication.endpoint.ssocket.clients[i]);
-                                        dev_out_data->communication.endpoint.ssocket.clients[i] = -1;
-                                    }
+                        if (dev_out_data->communication.endpoint.ssocket.clients[i] > 0) {
+                            for (int msg_idx = 0; msg_idx < out_msgs_count; ++msg_idx) {
+                                const int write_res = write(dev_out_data->communication.endpoint.ssocket.clients[i], (void*)&out_msgs[msg_idx], sizeof(out_message_t));
+                                if (write_res != sizeof(out_message_t)) {
+                                    fprintf(stderr, "Error in writing out_message to socket number %d: %d\n", i, write_res);
+                                    close(dev_out_data->communication.endpoint.ssocket.clients[i]);
+                                    dev_out_data->communication.endpoint.ssocket.clients[i] = -1;
                                 }
                             }
                         }
+                    }
 
-                        pthread_mutex_unlock(&dev_out_data->communication.endpoint.ssocket.mutex);
-                    }
-                }
-            }
-
-            // read and handle incoming data: this data is packed into in_message_t
-            if (dev_out_data->communication.type == ipc_unix_pipe) {
-                if (FD_ISSET(dev_out_data->communication.endpoint.pipe.in_message_pipe_fd, &read_fds)) {
-                    in_message_t incoming_message;
-                    const size_t in_message_pipe_read_res = read(dev_out_data->communication.endpoint.pipe.in_message_pipe_fd, (void*)&incoming_message, sizeof(in_message_t));
-                    if (in_message_pipe_read_res == sizeof(in_message_t)) {
-                        handle_incoming_message(
-                            &dev_out_data->settings,
-                            &incoming_message,
-                            &dev_out_data->dev_stats
-                        );
-                    } else {
-                        fprintf(stderr, "Error reading from in_message_pipe_fd: got %zu bytes, expected %zu bytes\n", in_message_pipe_read_res, sizeof(in_message_t));
-                    }
-                }
-            } else if (dev_out_data->communication.type == ipc_server_sockets) {
-                if (pthread_mutex_lock(&dev_out_data->communication.endpoint.ssocket.mutex) == 0) {
-                    for (int i = 0; i < MAX_CONNECTED_CLIENTS; ++i) {
-                        const int fd = dev_out_data->communication.endpoint.ssocket.clients[i];
-                        if ((fd > 0) && (FD_ISSET(fd, &read_fds))) {
-                            in_message_t incoming_message;
-                            const size_t in_message_pipe_read_res = read(fd, (void*)&incoming_message, sizeof(in_message_t));
-                            if (in_message_pipe_read_res == sizeof(in_message_t)) {
-                                handle_incoming_message(
-                                    &dev_out_data->settings,
-                                    &incoming_message,
-                                    &dev_out_data->dev_stats
-                                );
-                            } else {
-                                fprintf(stderr, "Error reading from socket number %d: got %zu bytes, expected %zu bytes\n", i, in_message_pipe_read_res, sizeof(in_message_t));
-                                close(dev_out_data->communication.endpoint.ssocket.clients[i]);
-                                dev_out_data->communication.endpoint.ssocket.clients[i] = -1;
-                            }
-                        }
-                    }
-                
                     pthread_mutex_unlock(&dev_out_data->communication.endpoint.ssocket.mutex);
                 }
             }
+        }
 
+        // read and handle incoming data: this data is packed into in_message_t
+        if (dev_out_data->communication.type == ipc_unix_pipe) {
+            if (FD_ISSET(dev_out_data->communication.endpoint.pipe.in_message_pipe_fd, &read_fds)) {
+                in_message_t incoming_message;
+                const size_t in_message_pipe_read_res = read(dev_out_data->communication.endpoint.pipe.in_message_pipe_fd, (void*)&incoming_message, sizeof(in_message_t));
+                if (in_message_pipe_read_res == sizeof(in_message_t)) {
+                    handle_incoming_message(
+                        &dev_out_data->settings,
+                        &incoming_message,
+                        &dev_out_data->dev_stats
+                    );
+                } else {
+                    fprintf(stderr, "Error reading from in_message_pipe_fd: got %zu bytes, expected %zu bytes\n", in_message_pipe_read_res, sizeof(in_message_t));
+                }
+            }
+        } else if (dev_out_data->communication.type == ipc_server_sockets) {
+            if (pthread_mutex_lock(&dev_out_data->communication.endpoint.ssocket.mutex) == 0) {
+                for (int i = 0; i < MAX_CONNECTED_CLIENTS; ++i) {
+                    const int fd = dev_out_data->communication.endpoint.ssocket.clients[i];
+                    if ((fd > 0) && (FD_ISSET(fd, &read_fds))) {
+                        in_message_t incoming_message;
+                        const size_t in_message_pipe_read_res = read(fd, (void*)&incoming_message, sizeof(in_message_t));
+                        if (in_message_pipe_read_res == sizeof(in_message_t)) {
+                            handle_incoming_message(
+                                &dev_out_data->settings,
+                                &incoming_message,
+                                &dev_out_data->dev_stats
+                            );
+                        } else {
+                            fprintf(stderr, "Error reading from socket number %d: got %zu bytes, expected %zu bytes\n", i, in_message_pipe_read_res, sizeof(in_message_t));
+                            close(dev_out_data->communication.endpoint.ssocket.clients[i]);
+                            dev_out_data->communication.endpoint.ssocket.clients[i] = -1;
+                        }
+                    }
+                }
             
+                pthread_mutex_unlock(&dev_out_data->communication.endpoint.ssocket.mutex);
+            }
         }
     }
 
-    // close the output device
+    // close the gamepad output device
     if (current_gamepad == GAMEPAD_DUALSENSE) {
         virt_dualsense_close(&controller_data.ds5);
     } else if (current_gamepad == GAMEPAD_DUALSHOCK) {
         virt_dualshock_close(&controller_data.ds4);
     }
 
+    // close the mouse device
+    virt_mouse_close(&mouse_data);
+
     // end communication
     if (dev_out_data->communication.type == ipc_server_sockets) {
         // close every client socket

devices_status.c

@@ -4,6 +4,16 @@ void kbd_status_init(keyboard_status_t *const stats) {
     stats->connected = true;
 }
 
+void mouse_status_init(mouse_status_t *const stats) {
+    stats->connected = true;
+
+    stats->x = 0;
+    stats->y = 0;
+    stats->btn_left = 0;
+    stats->btn_middle = 0;
+    stats->btn_right = 0;
+}
+
 void gamepad_status_init(gamepad_status_t *const stats) {
     stats->connected = true;
     stats->joystick_positions[0][0] = 0;
@@ -45,7 +55,7 @@ void gamepad_status_init(gamepad_status_t *const stats) {
 void devices_status_init(devices_status_t *const stats) {
     gamepad_status_init(&stats->gamepad);
     kbd_status_init(&stats->kbd);
-    // TODO: mouse init
+    mouse_status_init(&stats->mouse);
 }
 
 void gamepad_status_qam_quirk(gamepad_status_t *const gamepad_stats) {

devices_status.h

@@ -69,6 +69,19 @@ typedef struct keyboard_status {
     bool connected;
 } keyboard_status_t;
 
+
+typedef struct mouse_status {
+    bool connected;
+
+    int32_t x;
+    int32_t y;
+    
+    uint8_t btn_left;
+    uint8_t btn_middle;
+    uint8_t btn_right;
+
+} mouse_status_t;
+
 typedef struct devices_status {
     // this mutex MUST be grabbed when reading and/or writing below properties
     pthread_mutex_t mutex;
@@ -77,8 +90,12 @@ typedef struct devices_status {
 
     keyboard_status_t kbd;
 
+    mouse_status_t mouse;
+
 } devices_status_t;
 
+void mouse_status_init(mouse_status_t *const stats);
+
 void kbd_status_init(keyboard_status_t *const stats);
 
 void gamepad_status_init(gamepad_status_t *const stats);

message.h

@@ -64,6 +64,19 @@ typedef struct in_message_gamepad_set_element {
     } status;
 }  in_message_gamepad_set_element_t;
 
+typedef enum mouse_element {
+    MOUSE_ELEMENT_X,
+    MOUSE_ELEMENT_Y,
+    MOUSE_BTN_LEFT,
+    MOUSE_BTN_MIDDLE,
+    MOUSE_BTN_RIGHT,
+} mouse_element_t;
+
+typedef struct in_message_mouse_event {
+    mouse_element_t type;
+    int32_t value;
+} in_message_mouse_event_t;
+
 typedef enum in_message_gamepad_action {
     GAMEPAD_ACTION_PRESS_AND_RELEASE_CENTER,
     GAMEPAD_ACTION_OPEN_STEAM_QAM,
@@ -72,6 +85,7 @@ typedef enum in_message_gamepad_action {
 typedef enum in_in_message_type {
     GAMEPAD_SET_ELEMENT,
     GAMEPAD_ACTION,
+    MOUSE_EVENT,
 }  in_message_type_t;
 
 typedef struct in_message {
@@ -83,6 +97,8 @@ typedef struct in_message {
         in_message_gamepad_action_t action;
 
         in_message_gamepad_set_element_t gamepad_set;
+
+        in_message_mouse_event_t mouse_event;
     } data;
 
 }  in_message_t;

rog_ally.c

@@ -1,7 +1,10 @@
 #include "rog_ally.h"
 #include "input_dev.h"
 #include "dev_hidraw.h"
+#include "message.h"
 #include "xbox360.h"
+#include <linux/input-event-codes.h>
+#include <stdio.h>
 
 typedef enum rc71l_platform_mode {
   rc71l_platform_mode_hidraw,
@@ -81,7 +84,11 @@ static char* find_kernel_sysfs_device_path(struct udev *udev) {
     return NULL;
 }
 
-int asus_kbd_ev_map(
+static int get_next_mode(int current_mode) {
+	return 1 + ((current_mode + 1) % 3);
+}
+
+static int asus_kbd_ev_map(
 	const dev_in_settings_t *const conf,
 	const evdev_collected_t *const e,
 	in_message_t *const messages,
@@ -99,10 +106,10 @@ int asus_kbd_ev_map(
 					.type = GAMEPAD_SET_ELEMENT,
 					.data = {
 						.gamepad_set = {
-						.element = GAMEPAD_BTN_L5,
-						.status = {
-							.btn = e->ev[1].value,
-						}
+							.element = GAMEPAD_BTN_L5,
+							.status = {
+								.btn = e->ev[1].value,
+							}
 						}
 					}
 				};
@@ -165,7 +172,116 @@ int asus_kbd_ev_map(
 
 				printf("Asus MCU kernel interface found at %s -- switching mode\n", kernel_sysfs);
 
+				const size_t tmp_path_max_len = strlen(kernel_sysfs) + 256;
+				char *tmp_path = malloc(tmp_path_max_len);
+
+				if (tmp_path != NULL) {
+					memset(tmp_path, 0, tmp_path_max_len);
+					snprintf(tmp_path, tmp_path_max_len - 1, "%s/gamepad_mode", kernel_sysfs);
+
+					int gamepad_mode_fd = open(tmp_path, O_RDONLY | O_NONBLOCK);
+					if (gamepad_mode_fd > 0) {
+						char current_mode_str[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+						int current_mode_read_res = read(gamepad_mode_fd, (void*)current_mode_str, sizeof(current_mode_str));
+						if (current_mode_read_res > 0) {
+							int current_mode;
+							sscanf("%d", current_mode_str, &current_mode);
+
+							const int new_mode = get_next_mode(current_mode);
+							printf("Current mode is set to %d -- switching to %d", current_mode, new_mode);
+
+							// end the current mode read
+							close(gamepad_mode_fd);
+
+							char new_mode_str[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
+							snprintf(new_mode_str, sizeof(new_mode_str) - 1, "%d", new_mode);
+							gamepad_mode_fd = open(tmp_path, O_RDONLY);
+							if (gamepad_mode_fd > 0) {
+								if (write(gamepad_mode_fd, new_mode_str, strlen(new_mode_str)) > 0) {
+									printf("Controller mode switched successfully to %d\n", new_mode);
+								} else {
+									fprintf(stderr, "Unable to switch controller mode: %d -- expect bugs\n", errno);
+								}
+								close(gamepad_mode_fd);
+							} else {
+								fprintf(stderr, "Unable to open gamepad mode file to switch mode: %d\n", errno);
+							}
+						} else {
+							close(gamepad_mode_fd);
+							fprintf(stderr, "Unable to read gamepad_mode file to get current mode: %d", errno);
+						}
+					} else {
+						fprintf(stderr, "Unable to open gamepad_mode file in read-only mode to get current mode: %d", errno);
+					}
+
+					free(tmp_path);
+				} else {
+					fprintf(stderr, "Unable to allocate enough memory\n");
+				}
+
 				free(kernel_sysfs);
+			} else if (e->ev[i].code == BTN_LEFT) {
+				const in_message_t current_message = {
+					.type = MOUSE_EVENT,
+					.data = {
+						.mouse_event = {
+							.type = MOUSE_BTN_LEFT,
+							.value = e->ev[i].value,
+						}
+					}
+				};
+
+				messages[written_msg++] = current_message;
+			}  else if (e->ev[i].code == BTN_MIDDLE) {
+				const in_message_t current_message = {
+					.type = MOUSE_EVENT,
+					.data = {
+						.mouse_event = {
+							.type = MOUSE_BTN_MIDDLE,
+							.value = e->ev[i].value,
+						}
+					}
+				};
+
+				messages[written_msg++] = current_message;
+			} else if (e->ev[i].code == BTN_RIGHT) {
+				const in_message_t current_message = {
+					.type = MOUSE_EVENT,
+					.data = {
+						.mouse_event = {
+							.type = MOUSE_BTN_RIGHT,
+							.value = e->ev[i].value,
+						}
+					}
+				};
+
+				messages[written_msg++] = current_message;
+			}
+		} else if (e->ev[i].type == EV_REL) {
+			if (e->ev[i].code == REL_X) {
+				const in_message_t current_message = {
+					.type = MOUSE_EVENT,
+					.data = {
+						.mouse_event = {
+							.type = MOUSE_ELEMENT_X,
+							.value = e->ev[i].value,
+						}
+					}
+				};
+
+				messages[written_msg++] = current_message;
+			} else if (e->ev[i].code == REL_Y) {
+				const in_message_t current_message = {
+					.type = MOUSE_EVENT,
+					.data = {
+						.mouse_event = {
+							.type = MOUSE_ELEMENT_Y,
+							.value = e->ev[i].value,
+						}
+					}
+				};
+
+				messages[written_msg++] = current_message;
 			}
 		}
 	}

virt_mouse.c

@@ -0,0 +1,141 @@
+#include "virt_mouse.h"
+#include <linux/input-event-codes.h>
+#include <linux/input.h>
+#include <sys/time.h>
+
+int virt_mouse_init(virt_mouse_t *const mouse) {
+    int ret = -EINVAL;
+
+    mouse->status_recv = 0;
+
+    int fd = open("/dev/uinput", O_RDWR);
+	if(fd < 0) {
+        ret = errno;
+        goto virt_mouse_init_err;
+    }
+
+    ioctl(fd, UI_SET_EVBIT, EV_REL);
+    ioctl(fd, UI_SET_EVBIT, EV_KEY);
+    ioctl(fd, UI_SET_EVBIT, EV_MSC);
+    ioctl(fd, UI_SET_EVBIT, EV_SYN);
+    ioctl(fd, UI_SET_MSCBIT, MSC_TIMESTAMP);
+    ioctl(fd, UI_SET_KEYBIT, BTN_LEFT);
+    ioctl(fd, UI_SET_KEYBIT, BTN_MIDDLE);
+    ioctl(fd, UI_SET_KEYBIT, BTN_RIGHT);
+    ioctl(fd, UI_SET_RELBIT, REL_X);
+    ioctl(fd, UI_SET_RELBIT, REL_Y);
+    ioctl(fd, UI_SET_RELBIT, REL_WHEEL);
+    ioctl(fd, UI_SET_RELBIT, REL_WHEEL_HI_RES);
+
+    struct uinput_setup dev = {0};
+	strncpy(dev.name, VIRT_MOUSE_DEV_NAME, UINPUT_MAX_NAME_SIZE-1);
+    dev.id.bustype = BUS_VIRTUAL;
+    dev.id.vendor = VIRT_MOUSE_DEV_VENDOR_ID;
+	dev.id.product = VIRT_MOUSE_DEV_PRODUCT_ID;
+    dev.id.version = VIRT_MOUSE_DEV_VERSION;
+
+    if(ioctl(fd, UI_DEV_SETUP, &dev) < 0) {
+        ret = errno > 0 ? errno : -1 * errno;
+        ret = ret == 0 ? -EIO : ret;
+        goto virt_mouse_init_err;
+    }
+
+    if(ioctl(fd, UI_DEV_CREATE) < 0) {
+        ret = errno > 0 ? errno : -1 * errno;
+        ret = ret == 0 ? -EIO : ret;
+        goto virt_mouse_init_err;
+    }
+
+    // initialization ok
+    mouse->prev_btn_left = 0;
+    mouse->prev_btn_right = 0;
+    mouse->prev_btn_middle = 0;
+    mouse->fd = fd;
+    ret = 0;
+
+virt_mouse_init_err:
+    if (ret != 0) {
+        mouse->fd = -1;
+        close(fd);
+    }
+
+    return ret;
+}
+
+int virt_mouse_get_fd(virt_mouse_t *const mouse) {
+    return mouse->fd;
+}
+
+int virt_mouse_send(virt_mouse_t *const mouse, mouse_status_t *const status, struct timeval *const now) {
+    int res = 0;
+    
+    struct input_event tmp_ev;
+    if (now == NULL) {
+        gettimeofday(&tmp_ev.time, NULL);
+    } else {
+        tmp_ev.time = *now;
+    }
+
+    tmp_ev.type = EV_REL;
+
+    if (status->x > 0) {
+        tmp_ev.code = REL_X;
+        tmp_ev.value = status->x;
+        if (write(mouse->fd, &tmp_ev, sizeof(tmp_ev)) != sizeof(struct input_event)) {
+            res = errno < 0 ? errno : -1 * errno;
+            goto virt_mouse_send_err;
+        } else {
+            status->x = 0;
+        }
+    }
+
+    if (status->y > 0) {
+        tmp_ev.code = REL_Y;
+        tmp_ev.value = status->y;
+        if (write(mouse->fd, &tmp_ev, sizeof(tmp_ev)) != sizeof(struct input_event)) {
+            res = errno < 0 ? errno : -1 * errno;
+            goto virt_mouse_send_err;
+        } else {
+            status->y = 0;
+        }
+    }
+
+    tmp_ev.type = EV_KEY;
+
+    if (status->btn_left != mouse->prev_btn_left) {
+        mouse->prev_btn_left = status->btn_left;
+        tmp_ev.code = BTN_LEFT;
+        tmp_ev.value = status->btn_left;
+        if (write(mouse->fd, &tmp_ev, sizeof(tmp_ev)) != sizeof(struct input_event)) {
+            res = errno < 0 ? errno : -1 * errno;
+            goto virt_mouse_send_err;
+        }
+    }
+
+    if (status->btn_middle != mouse->prev_btn_middle) {
+        mouse->prev_btn_middle = status->btn_middle;
+        tmp_ev.code = BTN_MIDDLE;
+        tmp_ev.value = status->btn_middle;
+        if (write(mouse->fd, &tmp_ev, sizeof(tmp_ev)) != sizeof(struct input_event)) {
+            res = errno < 0 ? errno : -1 * errno;
+            goto virt_mouse_send_err;
+        }
+    }
+
+    if (status->btn_right != mouse->prev_btn_right) {
+        mouse->prev_btn_right = status->btn_right;
+        tmp_ev.code = BTN_RIGHT;
+        tmp_ev.value = status->btn_right;
+        if (write(mouse->fd, &tmp_ev, sizeof(tmp_ev)) != sizeof(struct input_event)) {
+            res = errno < 0 ? errno : -1 * errno;
+            goto virt_mouse_send_err;
+        }
+    }
+
+virt_mouse_send_err:
+    return res;
+}
+
+void virt_mouse_close(virt_mouse_t *const mouse) {
+    close(mouse->fd);
+}

virt_mouse.h

@@ -0,0 +1,29 @@
+#pragma once
+
+#include "message.h"
+#include "devices_status.h"
+
+#define VIRT_MOUSE_DEV_NAME "ROGueENEMY - mouse"
+
+#define VIRT_MOUSE_DEV_VENDOR_ID 0x108c
+#define VIRT_MOUSE_DEV_PRODUCT_ID 0x0323
+#define VIRT_MOUSE_DEV_VERSION 0x0111
+
+typedef struct virt_mouse {
+    int fd;
+
+    uint8_t prev_btn_left;
+    uint8_t prev_btn_right;
+    uint8_t prev_btn_middle;
+
+    uint64_t status_recv;
+
+} virt_mouse_t;
+
+int virt_mouse_init(virt_mouse_t *const mouse);
+
+int virt_mouse_get_fd(virt_mouse_t *const mouse);
+
+int virt_mouse_send(virt_mouse_t *const mouse, mouse_status_t *const status, struct timeval *const now);
+
+void virt_mouse_close(virt_mouse_t *const mouse);