Clean up PS/2 keyboard driver, new IPC mechanism MBus (message bus)

kernel/ipc/mbus/mbus.h

@@ -0,0 +1,39 @@
+#ifndef IPC_MBUS_MBUS_H_
+#define IPC_MBUS_MBUS_H_
+
+#include <stdint.h>
+#include <stddef.h>
+#include "proc/proc.h"
+#include "rbuf/rbuf.h"
+
+typedef struct IpcMBusCons {
+  struct IpcMBusCons *next;
+  uint64_t pid;
+  RBuf rbuf;
+} IpcMBusCons;
+
+typedef struct {
+  int _hshtbstate;
+  char ident[0x100];
+  SpinLock spinlock;
+  IpcMBusCons *consumers;
+  size_t objsize, objmax;
+} IpcMBus;
+
+typedef struct {
+  SpinLock spinlock;
+  IpcMBus mbuses[0x100];
+} IpcMBuses;
+
+extern IpcMBuses IPC_MBUSES;
+
+void ipc_mbusinit(void);
+IpcMBus *ipc_mbusmake(const char *name, size_t objsize, size_t objmax);
+int32_t ipc_mbusdelete(const char *name);
+int32_t ipc_mbuspublish(const char *name, const uint8_t *const buffer);
+int32_t ipc_mbusconsume(const char *name, uint8_t *const buffer, uint64_t pid);
+int32_t ipc_mbusattchcons(const char *name, uint64_t pid);
+int32_t ipc_mbusdttchcons(const char *name, uint64_t pid);
+void ipc_mbustick(void);
+
+#endif // IPC_MBUS_MBUS_H_