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-rw-r--r--include/i8042.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/i8042.h b/include/i8042.h
index 1395289..c48c057 100644
--- a/include/i8042.h
+++ b/include/i8042.h
@@ -39,6 +39,12 @@
#define I8042_STATUS_REG (CONFIG_SYS_ISA_IO + 0x0064) /* keyboard status read */
#define I8042_COMMAND_REG (CONFIG_SYS_ISA_IO + 0x0064) /* keyboard ctrl write */
+enum {
+ /* Output register (I8042_DATA_REG) has data for system */
+ I8042_STATUS_OUT_DATA = 1 << 0,
+ I8042_STATUS_IN_DATA = 1 << 1,
+};
+
#define KBD_US 0 /* default US layout */
#define KBD_GER 1 /* german layout */
@@ -69,6 +75,19 @@
/* exports */
+/**
+ * Flush all buffer from keyboard controller to host.
+ */
+void i8042_flush(void);
+
+/**
+ * Disables the keyboard so that key strokes no longer generate scancodes to
+ * the host.
+ *
+ * @return 0 if ok, -1 if keyboard input was found while disabling
+ */
+int i8042_disable(void);
+
int i8042_kbd_init(void);
int i8042_tstc(void);
int i8042_getc(void);