+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2002 ELTEC Elektronik AG
* Frank Gottschling <fgottschling@eltec.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
/* i8042.c - Intel 8042 keyboard driver routines */
#include <common.h>
#include <dm.h>
+#include <env.h>
#include <errno.h>
#include <i8042.h>
#include <input.h>
return in8(I8042_STS_REG) != 0xff;
}
-/*
- * Implement a weak default function for boards that optionally
- * need to skip the i8042 initialization.
- *
- * TODO(sjg@chromium.org): Use device tree for this?
- */
-int __weak board_i8042_skip(void)
-{
- /* As default, don't skip */
- return 0;
-}
-
-void i8042_flush(void)
+/** Flush all buffer from keyboard controller to host*/
+static void i8042_flush(void)
{
int timeout;
}
}
-int i8042_disable(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
+ */
+static int i8042_disable(void)
{
if (kbd_input_empty() == 0)
return -1;
char *penv;
int ret;
- if (!kbd_controller_present() || board_i8042_skip()) {
+ if (!kbd_controller_present()) {
debug("i8042 keyboard controller is not present\n");
return -ENOENT;
}
/* Init keyboard device (default US layout) */
keymap = KBD_US;
- penv = getenv("keymap");
+ penv = env_get("keymap");
if (penv != NULL) {
if (strncmp(penv, "de", 3) == 0)
keymap = KBD_GER;
return 0;
}
+static int i8042_kbd_remove(struct udevice *dev)
+{
+ if (i8042_disable())
+ log_debug("i8042_disable() failed. fine, continue.\n");
+ i8042_flush();
+
+ return 0;
+}
+
/**
* Set up the i8042 keyboard. This is called by the stdio device handler
*
.id = UCLASS_KEYBOARD,
.of_match = i8042_kbd_ids,
.probe = i8042_kbd_probe,
+ .remove = i8042_kbd_remove,
.ops = &i8042_kbd_ops,
.priv_auto_alloc_size = sizeof(struct i8042_kbd_priv),
};