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authorfishsoupisgood <github@madingley.org>2019-04-29 01:17:54 +0100
committerfishsoupisgood <github@madingley.org>2019-05-27 03:43:43 +0100
commit3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch)
tree65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/include/i8042.h
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Initial import of qemu-2.4.1HEADmaster
Diffstat (limited to 'roms/u-boot/include/i8042.h')
-rw-r--r--roms/u-boot/include/i8042.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/roms/u-boot/include/i8042.h b/roms/u-boot/include/i8042.h
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+++ b/roms/u-boot/include/i8042.h
@@ -0,0 +1,79 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+/* i8042.h - Intel 8042 keyboard driver header */
+
+#ifndef _I8042_H_
+#define _I8042_H_
+
+#ifdef __I386__
+#include <common.h>
+#include <asm/io.h>
+#define in8(p) inb(p)
+#define out8(p,v) outb(v,p)
+#endif
+
+/* defines */
+
+#define I8042_DATA_REG (CONFIG_SYS_ISA_IO + 0x0060) /* keyboard i/o buffer */
+#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 */
+
+#define KBD_TIMEOUT 1000 /* 1 sec */
+#define KBD_RESET_TRIES 3
+
+#define AS 0 /* normal character index */
+#define SH 1 /* shift index */
+#define CN 2 /* control index */
+#define NM 3 /* numeric lock index */
+#define AK 4 /* right alt key */
+#define CP 5 /* capslock index */
+#define ST 6 /* stop output index */
+#define EX 7 /* extended code index */
+#define ES 8 /* escape and extended code index */
+
+#define NORMAL 0x0000 /* normal key */
+#define STP 0x0001 /* scroll lock stop output*/
+#define NUM 0x0002 /* numeric lock */
+#define CAPS 0x0004 /* capslock */
+#define SHIFT 0x0008 /* shift */
+#define CTRL 0x0010 /* control*/
+#define EXT 0x0020 /* extended scan code 0xe0 */
+#define ESC 0x0040 /* escape key press */
+#define E1 0x0080 /* extended scan code 0xe1 */
+#define BRK 0x0100 /* make break flag for keyboard */
+#define ALT 0x0200 /* right alt */
+
+/* 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);
+
+#endif /* _I8042_H_ */