| /* |
| * (C) Copyright 2002 ELTEC Elektronik AG |
| * Frank Gottschling <fgottschling@eltec.de> |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| /* i8042.c - Intel 8042 keyboard driver routines */ |
| |
| /* includes */ |
| |
| #include <common.h> |
| |
| #ifdef CONFIG_I8042_KBD |
| |
| #include <i8042.h> |
| |
| /* defines */ |
| |
| #ifdef CONFIG_CONSOLE_CURSOR |
| extern void console_cursor (int state); |
| static int blinkCount = CFG_CONSOLE_BLINK_COUNT; |
| static int cursor_state = 0; |
| #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 = 0; /* 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 */ |
| }; |
| |
| /******************************************************************************* |
| * |
| * i8042_kbd_init - reset keyboard and init state flags |
| */ |
| int i8042_kbd_init (void) |
| { |
| int keymap, try; |
| char *penv; |
| |
| /* Init keyboard device (default US layout) */ |
| keymap = KBD_US; |
| if ((penv = getenv ("keymap")) != 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 = CFG_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 = CFG_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; |
| |
| /* wait for input buf empty */ |
| while ((in8 (I8042_STATUS_REG) & 0x02) && kbdTimeout--) |
| udelay(1000); |
| |
| return kbdTimeout; |
| } |
| |
| /******************************************************************************/ |
| |
| static int kbd_reset (void) |
| { |
| if (kbd_input_empty() == 0) |
| return -1; |
| |
| out8 (I8042_DATA_REG, 0xff); |
| |
| udelay(250000); |
| |
| if (kbd_input_empty() == 0) |
| return -1; |
| |
| out8 (I8042_DATA_REG, 0x60); |
| |
| if (kbd_input_empty() == 0) |
| return -1; |
| |
| out8 (I8042_DATA_REG, 0x45); |
| |
| |
| if (kbd_input_empty() == 0) |
| return -1; |
| |
| out8 (I8042_COMMAND_REG, 0xae); |
| |
| if (kbd_input_empty() == 0) |
| return -1; |
| |
| return 0; |
| } |
| |
| #endif /* CONFIG_I8042_KBD */ |
