Making input an (optional) driver

Author: Diego Ferrari

kernel/input/input_dispatch.cpp

@@ -143,4 +143,17 @@ void init_input_process(){
 
 void handle_input_interrupt(){
     if (input_driver->use_interrupts) input_driver->handle_interrupt();
-}
+}
+
+driver_module input_module = (driver_module){
+    .name = "input",
+    .mount = "/in",
+    .version = VERSION_NUM(0, 1, 0, 1),
+    .init = input_init,
+    .fini = 0,
+    .open = 0,
+    .read = 0,
+    .write = 0,
+    .seek = 0,
+    .readdir = 0,
+};

kernel/input/input_dispatch.h

@@ -2,6 +2,7 @@
 
 #include "input_keycodes.h"
 #include "keypress.h"
+#include "dev/driver_base.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -25,12 +26,12 @@ bool sys_shortcut_triggered(uint16_t pid, uint16_t sid);
 
 bool is_new_keypress(keypress* current, keypress* previous);
 
-bool input_init();
-
 void handle_input_interrupt();
 
 void init_input_process();
 
+extern driver_module input_module;
+
 #ifdef __cplusplus
 }
 #endif 

kernel/kernel.c

@@ -60,14 +60,14 @@ void kernel_main() {
         panic("Disk initialization failure");
 
     // xhci_enable_verbose();
-    if (!input_init())
-        panic("Input initialization error");
+    bool input_available = load_module(&input_module);
 
     bool network_available = load_module(&net_module);
 
     load_module(&audio_module);
 
-    init_input_process();
+    if (input_available)
+        init_input_process();
 
     mmu_init();
     kprint("MMU Mapped");