Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 706 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/drivers/input/i8042.c b/qemu/roms/u-boot/drivers/input/i8042.c
new file mode 100644
index 000000000..35fa0bb50
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/input/i8042.c
@@ -0,0 +1,706 @@
+/*
+ * (C) Copyright 2002 ELTEC Elektronik AG
+ * Frank Gottschling <fgottschling@eltec.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/* i8042.c - Intel 8042 keyboard driver routines */
+
+/* includes */
+
+#include <common.h>
+#include <linux/compiler.h>
+
+#ifdef CONFIG_USE_CPCIDVI
+extern u8 gt_cpcidvi_in8(u32 offset);
+extern void gt_cpcidvi_out8(u32 offset, u8 data);
+
+#define in8(a)	   gt_cpcidvi_in8(a)
+#define out8(a, b) gt_cpcidvi_out8(a, b)
+#endif
+
+#include <i8042.h>
+
+/* defines */
+
+#ifdef CONFIG_CONSOLE_CURSOR
+extern void console_cursor(int state);
+static int blinkCount = CONFIG_SYS_CONSOLE_BLINK_COUNT;
+static int cursor_state;
+#endif
+
+/* locals */
+
+static int  kbd_input	 = -1;		/* no input yet */
+static int  kbd_mapping	 = KBD_US;	/* default US keyboard */
+static int  kbd_flags	 = NORMAL;	/* after reset */
+static int  kbd_state;			/* unshift code */
+
+static void kbd_conv_char(unsigned char scan_code);
+static void kbd_led_set(void);
+static void kbd_normal(unsigned char scan_code);
+static void kbd_shift(unsigned char scan_code);
+static void kbd_ctrl(unsigned char scan_code);
+static void kbd_num(unsigned char scan_code);
+static void kbd_caps(unsigned char scan_code);
+static void kbd_scroll(unsigned char scan_code);
+static void kbd_alt(unsigned char scan_code);
+static int  kbd_input_empty(void);
+static int  kbd_reset(void);
+
+static unsigned char kbd_fct_map[144] = {
+	/* kbd_fct_map table for scan code */
+	 0,  AS,  AS,  AS,  AS,  AS,  AS,  AS, /* scan  0- 7 */
+	AS,  AS,  AS,  AS,  AS,  AS,  AS,  AS, /* scan  8- F */
+	AS,  AS,  AS,  AS,  AS,  AS,  AS,  AS, /* scan 10-17 */
+	AS,  AS,  AS,  AS,  AS,  CN,  AS,  AS, /* scan 18-1F */
+	AS,  AS,  AS,  AS,  AS,  AS,  AS,  AS, /* scan 20-27 */
+	AS,  AS,  SH,  AS,  AS,  AS,  AS,  AS, /* scan 28-2F */
+	AS,  AS,  AS,  AS,  AS,  AS,  SH,  AS, /* scan 30-37 */
+	AS,  AS,  CP,   0,   0,   0,   0,   0, /* scan 38-3F */
+	 0,   0,   0,   0,   0,  NM,  ST,  ES, /* scan 40-47 */
+	ES,  ES,  ES,  ES,  ES,  ES,  ES,  ES, /* scan 48-4F */
+	ES,  ES,  ES,  ES,   0,   0,  AS,   0, /* scan 50-57 */
+	 0,   0,   0,   0,   0,   0,   0,   0, /* scan 58-5F */
+	 0,   0,   0,   0,   0,   0,   0,   0, /* scan 60-67 */
+	 0,   0,   0,   0,   0,   0,   0,   0, /* scan 68-6F */
+	AS,   0,   0,  AS,   0,   0,  AS,   0, /* scan 70-77 */
+	 0,  AS,   0,   0,   0,  AS,   0,   0, /* scan 78-7F */
+	AS,  CN,  AS,  AS,  AK,  ST,  EX,  EX, /* enhanced */
+	AS,  EX,  EX,  AS,  EX,  AS,  EX,  EX  /* enhanced */
+	};
+
+static unsigned char kbd_key_map[2][5][144] = {
+	{ /* US keyboard */
+	{ /* unshift code */
+	   0, 0x1b,  '1',  '2',  '3',  '4',  '5',  '6', /* scan  0- 7 */
+	 '7',  '8',  '9',  '0',  '-',  '=', 0x08, '\t', /* scan  8- F */
+	 'q',  'w',  'e',  'r',  't',  'y',  'u',  'i', /* scan 10-17 */
+	 'o',  'p',  '[',  ']', '\r',   CN,  'a',  's', /* scan 18-1F */
+	 'd',  'f',  'g',  'h',  'j',  'k',  'l',  ';', /* scan 20-27 */
+	'\'',  '`',   SH, '\\',  'z',  'x',  'c',  'v', /* scan 28-2F */
+	 'b',  'n',  'm',  ',',  '.',  '/',   SH,  '*', /* scan 30-37 */
+	 ' ',  ' ',   CP,    0,    0,    0,    0,    0, /* scan 38-3F */
+	   0,    0,    0,    0,    0,   NM,   ST,  '7', /* scan 40-47 */
+	 '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1', /* scan 48-4F */
+	 '2',  '3',  '0',  '.',    0,    0,    0,    0, /* scan 50-57 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 58-5F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 60-67 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 68-6F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 70-77 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST,  'F',  'A', /* extended */
+	   0,  'D',  'C',    0,  'B',    0,  '@',  'P'  /* extended */
+	},
+	{ /* shift code */
+	   0, 0x1b,  '!',  '@',  '#',  '$',  '%',  '^', /* scan  0- 7 */
+	 '&',  '*',  '(',  ')',  '_',  '+', 0x08, '\t', /* scan  8- F */
+	 'Q',  'W',  'E',  'R',  'T',  'Y',  'U',  'I', /* scan 10-17 */
+	 'O',  'P',  '{',  '}', '\r',   CN,  'A',  'S', /* scan 18-1F */
+	 'D',  'F',  'G',  'H',  'J',  'K',  'L',  ':', /* scan 20-27 */
+	 '"',  '~',   SH,  '|',  'Z',  'X',  'C',  'V', /* scan 28-2F */
+	 'B',  'N',  'M',  '<',  '>',  '?',   SH,  '*', /* scan 30-37 */
+	 ' ',  ' ',   CP,    0,    0,    0,    0,    0, /* scan 38-3F */
+	   0,    0,    0,    0,    0,   NM,   ST,  '7', /* scan 40-47 */
+	 '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1', /* scan 48-4F */
+	 '2',  '3',  '0',  '.',    0,    0,    0,    0, /* scan 50-57 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 58-5F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 60-67 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 68-6F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 70-77 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST,  'F',  'A', /* extended */
+	   0,  'D',  'C',    0,  'B',    0,  '@',  'P'  /* extended */
+	},
+	{ /* control code */
+	0xff, 0x1b, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, /* scan  0- 7 */
+	0x1e, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, '\t', /* scan  8- F */
+	0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, /* scan 10-17 */
+	0x0f, 0x10, 0x1b, 0x1d, '\r',   CN, 0x01, 0x13, /* scan 18-1F */
+	0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0xff, /* scan 20-27 */
+	0xff, 0x1c,   SH, 0xff, 0x1a, 0x18, 0x03, 0x16, /* scan 28-2F */
+	0x02, 0x0e, 0x0d, 0xff, 0xff, 0xff,   SH, 0xff, /* scan 30-37 */
+	0xff, 0xff,   CP, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
+	0xff, 0xff, 0xff, 0xff, 0xff,   NM,   ST, 0xff, /* scan 40-47 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48-4F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50-57 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58-5F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60-67 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68-6F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70-77 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST, 0xff, 0xff, /* extended */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  /* extended */
+	},
+	{ /* non numeric code */
+	   0, 0x1b,  '1',  '2',  '3',  '4',  '5',  '6', /* scan  0- 7 */
+	 '7',  '8',  '9',  '0',  '-',  '=', 0x08, '\t', /* scan  8- F */
+	 'q',  'w',  'e',  'r',  't',  'y',  'u',  'i', /* scan 10-17 */
+	 'o',  'p',  '[',  ']', '\r',   CN,  'a',  's', /* scan 18-1F */
+	 'd',  'f',  'g',  'h',  'j',  'k',  'l',  ';', /* scan 20-27 */
+	'\'',  '`',   SH, '\\',  'z',  'x',  'c',  'v', /* scan 28-2F */
+	 'b',  'n',  'm',  ',',  '.',  '/',   SH,  '*', /* scan 30-37 */
+	 ' ',  ' ',   CP,    0,    0,    0,    0,    0, /* scan 38-3F */
+	   0,    0,    0,    0,    0,   NM,   ST,  'w', /* scan 40-47 */
+	 'x',  'y',  'l',  't',  'u',  'v',  'm',  'q', /* scan 48-4F */
+	 'r',  's',  'p',  'n',    0,    0,    0,    0, /* scan 50-57 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 58-5F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 60-67 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 68-6F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 70-77 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST,  'F',  'A', /* extended */
+	   0,  'D',  'C',    0,  'B',    0,  '@',  'P'  /* extended */
+	},
+	{ /* right alt mode - not used in US keyboard */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan  0 - 7 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 8 - F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 10 -17 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 18 -1F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 20 -27 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 28 -2F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 30 -37 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38 -3F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 40 -47 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48 -4F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50 -57 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58 -5F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60 -67 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68 -6F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70 -77 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78 -7F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* extended */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  /* extended */
+	}
+	},
+	{ /* german keyboard */
+	{ /* unshift code */
+	   0, 0x1b,  '1',  '2',  '3',  '4',  '5',  '6', /* scan  0- 7 */
+	 '7',  '8',  '9',  '0', 0xe1, '\'', 0x08, '\t', /* scan  8- F */
+	 'q',  'w',  'e',  'r',  't',  'z',  'u',  'i', /* scan 10-17 */
+	 'o',  'p', 0x81,  '+', '\r',   CN,  'a',  's', /* scan 18-1F */
+	 'd',  'f',  'g',  'h',  'j',  'k',  'l', 0x94, /* scan 20-27 */
+	0x84,  '^',   SH,  '#',  'y',  'x',  'c',  'v', /* scan 28-2F */
+	 'b',  'n',  'm',  ',',  '.',  '-',   SH,  '*', /* scan 30-37 */
+	 ' ',  ' ',   CP,    0,    0,    0,    0,    0, /* scan 38-3F */
+	   0,    0,    0,    0,    0,   NM,   ST,  '7', /* scan 40-47 */
+	 '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1', /* scan 48-4F */
+	 '2',  '3',  '0',  ',',    0,    0,  '<',    0, /* scan 50-57 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 58-5F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 60-67 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 68-6F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 70-77 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST,  'F',  'A', /* extended */
+	   0,  'D',  'C',    0,  'B',    0,  '@',  'P'  /* extended */
+	},
+	{ /* shift code */
+	   0, 0x1b,  '!',  '"', 0x15,  '$',  '%',  '&', /* scan  0- 7 */
+	 '/',  '(',  ')',  '=',  '?',  '`', 0x08, '\t', /* scan  8- F */
+	 'Q',  'W',  'E',  'R',  'T',  'Z',  'U',  'I', /* scan 10-17 */
+	 'O',  'P', 0x9a,  '*', '\r',   CN,  'A',  'S', /* scan 18-1F */
+	 'D',  'F',  'G',  'H',  'J',  'K',  'L', 0x99, /* scan 20-27 */
+	0x8e, 0xf8,   SH, '\'',  'Y',  'X',  'C',  'V', /* scan 28-2F */
+	 'B',  'N',  'M',  ';',  ':',  '_',   SH,  '*', /* scan 30-37 */
+	 ' ',  ' ',   CP,    0,    0,    0,    0,    0, /* scan 38-3F */
+	   0,    0,    0,    0,    0,   NM,   ST,  '7', /* scan 40-47 */
+	 '8',  '9',  '-',  '4',  '5',  '6',  '+',  '1', /* scan 48-4F */
+	 '2',  '3',  '0',  ',',    0,    0,  '>',    0, /* scan 50-57 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 58-5F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 60-67 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 68-6F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 70-77 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST,  'F',  'A', /* extended */
+	   0,  'D',  'C',    0,  'B',    0,  '@',  'P'  /* extended */
+	},
+	{ /* control code */
+	0xff, 0x1b, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, /* scan  0- 7 */
+	0x1e, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, '\t', /* scan  8- F */
+	0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, /* scan 10-17 */
+	0x0f, 0x10, 0x1b, 0x1d, '\r',   CN, 0x01, 0x13, /* scan 18-1F */
+	0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0xff, /* scan 20-27 */
+	0xff, 0x1c,   SH, 0xff, 0x1a, 0x18, 0x03, 0x16, /* scan 28-2F */
+	0x02, 0x0e, 0x0d, 0xff, 0xff, 0xff,   SH, 0xff, /* scan 30-37 */
+	0xff, 0xff,   CP, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
+	0xff, 0xff, 0xff, 0xff, 0xff,   NM,   ST, 0xff, /* scan 40-47 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48-4F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50-57 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58-5F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60-67 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68-6F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70-77 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST, 0xff, 0xff, /* extended */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  /* extended */
+	},
+	{ /* non numeric code */
+	   0, 0x1b,  '1',  '2',  '3',  '4',  '5',  '6', /* scan  0- 7 */
+	 '7',  '8',  '9',  '0', 0xe1, '\'', 0x08, '\t', /* scan  8- F */
+	 'q',  'w',  'e',  'r',  't',  'z',  'u',  'i', /* scan 10-17 */
+	 'o',  'p', 0x81,  '+', '\r',   CN,  'a',  's', /* scan 18-1F */
+	 'd',  'f',  'g',  'h',  'j',  'k',  'l', 0x94, /* scan 20-27 */
+	0x84,  '^',   SH,    0,  'y',  'x',  'c',  'v', /* scan 28-2F */
+	 'b',  'n',  'm',  ',',  '.',  '-',   SH,  '*', /* scan 30-37 */
+	 ' ',  ' ',   CP,    0,    0,    0,    0,    0, /* scan 38-3F */
+	   0,    0,    0,    0,    0,   NM,   ST,  'w', /* scan 40-47 */
+	 'x',  'y',  'l',  't',  'u',  'v',  'm',  'q', /* scan 48-4F */
+	 'r',  's',  'p',  'n',    0,    0,  '<',    0, /* scan 50-57 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 58-5F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 60-67 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 68-6F */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 70-77 */
+	   0,    0,    0,    0,    0,    0,    0,    0, /* scan 78-7F */
+	'\r',   CN,  '/',  '*',  ' ',   ST,  'F',  'A', /* extended */
+	   0,  'D',  'C',    0,  'B',    0,  '@',  'P'  /* extended */
+	},
+	{ /* Right alt mode - is used in German keyboard */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan  0 - 7 */
+	 '{',  '[',  ']',  '}', '\\', 0xff, 0xff, 0xff, /* scan  8 - F */
+	 '@', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 10 -17 */
+	0xff, 0xff, 0xff,  '~', 0xff, 0xff, 0xff, 0xff, /* scan 18 -1F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 20 -27 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 28 -2F */
+	0xff, 0xff, 0xe6, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 30 -37 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38 -3F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 40 -47 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48 -4F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff,  '|', 0xff, /* scan 50 -57 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58 -5F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60 -67 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68 -6F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70 -77 */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78 -7F */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* extended */
+	0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  /* extended */
+	}
+	}
+	};
+
+static unsigned char ext_key_map[] = {
+	0x1c, /* keypad enter */
+	0x1d, /* right control */
+	0x35, /* keypad slash */
+	0x37, /* print screen */
+	0x38, /* right alt */
+	0x46, /* break */
+	0x47, /* editpad home */
+	0x48, /* editpad up */
+	0x49, /* editpad pgup */
+	0x4b, /* editpad left */
+	0x4d, /* editpad right */
+	0x4f, /* editpad end */
+	0x50, /* editpad dn */
+	0x51, /* editpad pgdn */
+	0x52, /* editpad ins */
+	0x53, /* editpad del */
+	0x00  /* map end */
+	};
+
+/******************************************************************************/
+
+static int kbd_controller_present(void)
+{
+	return in8(I8042_STATUS_REG) != 0xff;
+}
+
+/*
+ * Implement a weak default function for boards that optionally
+ * need to skip the i8042 initialization.
+ */
+int __weak board_i8042_skip(void)
+{
+	/* As default, don't skip */
+	return 0;
+}
+
+void i8042_flush(void)
+{
+	int timeout;
+
+	/*
+	 * The delay is to give the keyboard controller some time to fill the
+	 * next byte.
+	 */
+	while (1) {
+		timeout = 100;  /* wait for no longer than 100us */
+		while (timeout > 0 && !(in8(I8042_STATUS_REG) & 0x01)) {
+			udelay(1);
+			timeout--;
+		}
+
+		/* Try to pull next byte if not timeout. */
+		if (in8(I8042_STATUS_REG) & 0x01)
+			in8(I8042_DATA_REG);
+		else
+			break;
+	}
+}
+
+int i8042_disable(void)
+{
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	/* Disable keyboard */
+	out8(I8042_COMMAND_REG, 0xad);
+
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	return 0;
+}
+
+
+/*******************************************************************************
+ *
+ * i8042_kbd_init - reset keyboard and init state flags
+ */
+int i8042_kbd_init(void)
+{
+	int keymap, try;
+	char *penv;
+
+	if (!kbd_controller_present() || board_i8042_skip())
+		return -1;
+
+#ifdef CONFIG_USE_CPCIDVI
+	penv = getenv("console");
+	if (penv != NULL) {
+		if (strncmp(penv, "serial", 7) == 0)
+			return -1;
+	}
+#endif
+	/* Init keyboard device (default US layout) */
+	keymap = KBD_US;
+	penv = getenv("keymap");
+	if (penv != NULL) {
+		if (strncmp(penv, "de", 3) == 0)
+			keymap = KBD_GER;
+	}
+
+	for (try = 0; try < KBD_RESET_TRIES; try++) {
+		if (kbd_reset() == 0) {
+			kbd_mapping = keymap;
+			kbd_flags   = NORMAL;
+			kbd_state   = 0;
+			kbd_led_set();
+			return 0;
+		}
+	}
+	return -1;
+}
+
+
+/*******************************************************************************
+ *
+ * i8042_tstc - test if keyboard input is available
+ *		option: cursor blinking if called in a loop
+ */
+int i8042_tstc(void)
+{
+	unsigned char scan_code = 0;
+
+#ifdef CONFIG_CONSOLE_CURSOR
+	if (--blinkCount == 0) {
+		cursor_state ^= 1;
+		console_cursor(cursor_state);
+		blinkCount = CONFIG_SYS_CONSOLE_BLINK_COUNT;
+		udelay(10);
+	}
+#endif
+
+	if ((in8(I8042_STATUS_REG) & 0x01) == 0) {
+		return 0;
+	} else {
+		scan_code = in8(I8042_DATA_REG);
+		if (scan_code == 0xfa)
+			return 0;
+
+		kbd_conv_char(scan_code);
+
+		if (kbd_input != -1)
+			return 1;
+	}
+	return 0;
+}
+
+
+/*******************************************************************************
+ *
+ * i8042_getc - wait till keyboard input is available
+ *		option: turn on/off cursor while waiting
+ */
+int i8042_getc(void)
+{
+	int ret_chr;
+	unsigned char scan_code;
+
+	while (kbd_input == -1) {
+		while ((in8(I8042_STATUS_REG) & 0x01) == 0) {
+#ifdef CONFIG_CONSOLE_CURSOR
+			if (--blinkCount == 0) {
+				cursor_state ^= 1;
+				console_cursor(cursor_state);
+				blinkCount = CONFIG_SYS_CONSOLE_BLINK_COUNT;
+			}
+			udelay(10);
+#endif
+		}
+		scan_code = in8(I8042_DATA_REG);
+		if (scan_code != 0xfa)
+			kbd_conv_char (scan_code);
+	}
+	ret_chr = kbd_input;
+	kbd_input = -1;
+	return ret_chr;
+}
+
+
+/******************************************************************************/
+
+static void kbd_conv_char(unsigned char scan_code)
+{
+	if (scan_code == 0xe0) {
+		kbd_flags |= EXT;
+		return;
+	}
+
+	/* if high bit of scan_code, set break flag */
+	if (scan_code & 0x80)
+		kbd_flags |=  BRK;
+	else
+		kbd_flags &= ~BRK;
+
+	if ((scan_code == 0xe1) || (kbd_flags & E1)) {
+		if (scan_code == 0xe1) {
+			kbd_flags ^= BRK;    /* reset the break flag */
+			kbd_flags ^= E1;     /* bitwise EXOR with E1 flag */
+		}
+		return;
+	}
+
+	scan_code &= 0x7f;
+
+	if (kbd_flags & EXT) {
+		int i;
+
+		kbd_flags ^= EXT;
+		for (i = 0; ext_key_map[i]; i++) {
+			if (ext_key_map[i] == scan_code) {
+				scan_code = 0x80 + i;
+				break;
+			}
+		}
+		/* not found ? */
+		if (!ext_key_map[i])
+			return;
+	}
+
+	switch (kbd_fct_map[scan_code]) {
+	case AS:
+		kbd_normal(scan_code);
+		break;
+	case SH:
+		kbd_shift(scan_code);
+		break;
+	case CN:
+		kbd_ctrl(scan_code);
+		break;
+	case NM:
+		kbd_num(scan_code);
+		break;
+	case CP:
+		kbd_caps(scan_code);
+		break;
+	case ST:
+		kbd_scroll(scan_code);
+		break;
+	case AK:
+		kbd_alt(scan_code);
+		break;
+	}
+	return;
+}
+
+
+/******************************************************************************/
+
+static void kbd_normal(unsigned char scan_code)
+{
+	unsigned char chr;
+
+	if ((kbd_flags & BRK) == NORMAL) {
+		chr = kbd_key_map[kbd_mapping][kbd_state][scan_code];
+		if ((chr == 0xff) || (chr == 0x00))
+			return;
+
+		/* if caps lock convert upper to lower */
+		if (((kbd_flags & CAPS) == CAPS) &&
+				(chr >= 'a' && chr <= 'z')) {
+			chr -= 'a' - 'A';
+		}
+		kbd_input = chr;
+	}
+}
+
+
+/******************************************************************************/
+
+static void kbd_shift(unsigned char scan_code)
+{
+	if ((kbd_flags & BRK) == BRK) {
+		kbd_state = AS;
+		kbd_flags &= (~SHIFT);
+	} else {
+		kbd_state = SH;
+		kbd_flags |= SHIFT;
+	}
+}
+
+
+/******************************************************************************/
+
+static void kbd_ctrl(unsigned char scan_code)
+{
+	if ((kbd_flags & BRK) == BRK) {
+		kbd_state = AS;
+		kbd_flags &= (~CTRL);
+	} else {
+		kbd_state = CN;
+		kbd_flags |= CTRL;
+	}
+}
+
+
+/******************************************************************************/
+
+static void kbd_caps(unsigned char scan_code)
+{
+	if ((kbd_flags & BRK) == NORMAL) {
+		kbd_flags ^= CAPS;
+		kbd_led_set();    /* update keyboard LED */
+	}
+}
+
+
+/******************************************************************************/
+
+static void kbd_num(unsigned char scan_code)
+{
+	if ((kbd_flags & BRK) == NORMAL) {
+		kbd_flags ^= NUM;
+		kbd_state = (kbd_flags & NUM) ? AS : NM;
+		kbd_led_set();    /* update keyboard LED */
+	}
+}
+
+
+/******************************************************************************/
+
+static void kbd_scroll(unsigned char scan_code)
+{
+	if ((kbd_flags & BRK) == NORMAL) {
+		kbd_flags ^= STP;
+		kbd_led_set();    /* update keyboard LED */
+		if (kbd_flags & STP)
+			kbd_input = 0x13;
+		else
+			kbd_input = 0x11;
+	}
+}
+
+/******************************************************************************/
+
+static void kbd_alt(unsigned char scan_code)
+{
+	if ((kbd_flags & BRK) == BRK) {
+		kbd_state = AS;
+		kbd_flags &= (~ALT);
+	} else {
+		kbd_state = AK;
+		kbd_flags &= ALT;
+	}
+}
+
+
+/******************************************************************************/
+
+static void kbd_led_set(void)
+{
+	kbd_input_empty();
+	out8(I8042_DATA_REG, 0xed);    /* SET LED command */
+	kbd_input_empty();
+	out8(I8042_DATA_REG, (kbd_flags & 0x7));    /* LED bits only */
+}
+
+
+/******************************************************************************/
+
+static int kbd_input_empty(void)
+{
+	int kbdTimeout = KBD_TIMEOUT * 1000;
+
+	while ((in8(I8042_STATUS_REG) & I8042_STATUS_IN_DATA) && kbdTimeout--)
+		udelay(1);
+
+	return kbdTimeout != -1;
+}
+
+/******************************************************************************/
+
+static int wait_until_kbd_output_full(void)
+{
+	int kbdTimeout = KBD_TIMEOUT * 1000;
+
+	while (((in8(I8042_STATUS_REG) & 0x01) == 0) && kbdTimeout--)
+		udelay(1);
+
+	return kbdTimeout != -1;
+}
+
+/******************************************************************************/
+
+static int kbd_reset(void)
+{
+	/* KB Reset */
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	out8(I8042_DATA_REG, 0xff);
+
+	if (wait_until_kbd_output_full() == 0)
+		return -1;
+
+	if (in8(I8042_DATA_REG) != 0xfa) /* ACK */
+		return -1;
+
+	if (wait_until_kbd_output_full() == 0)
+		return -1;
+
+	if (in8(I8042_DATA_REG) != 0xaa) /* Test Pass*/
+		return -1;
+
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	/* Set KBC mode */
+	out8(I8042_COMMAND_REG, 0x60);
+
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	out8(I8042_DATA_REG, 0x45);
+
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	/* Enable Keyboard */
+	out8(I8042_COMMAND_REG, 0xae);
+
+	if (kbd_input_empty() == 0)
+		return -1;
+
+	return 0;
+}