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wdenkc6097192002-11-03 00:24:07 +00001/*
2 * (C) Copyright 2002 ELTEC Elektronik AG
3 * Frank Gottschling <fgottschling@eltec.de>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Wolfgang Denkbfc81252006-03-06 13:03:37 +010015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
wdenkc6097192002-11-03 00:24:07 +000016 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/* i8042.c - Intel 8042 keyboard driver routines */
25
26/* includes */
27
28#include <common.h>
29
Stefan Roesea7b9fb92006-01-18 20:05:34 +010030#ifdef CONFIG_USE_CPCIDVI
Gabe Blackdd4a5b22011-11-14 19:24:14 +000031extern u8 gt_cpcidvi_in8(u32 offset);
Stefan Roesea7b9fb92006-01-18 20:05:34 +010032extern void gt_cpcidvi_out8(u32 offset, u8 data);
33
Wolfgang Denkbfc81252006-03-06 13:03:37 +010034#define in8(a) gt_cpcidvi_in8(a)
Gabe Blackdd4a5b22011-11-14 19:24:14 +000035#define out8(a, b) gt_cpcidvi_out8(a, b)
Stefan Roesea7b9fb92006-01-18 20:05:34 +010036#endif
37
wdenkc6097192002-11-03 00:24:07 +000038#include <i8042.h>
39
40/* defines */
41
42#ifdef CONFIG_CONSOLE_CURSOR
Gabe Blackdd4a5b22011-11-14 19:24:14 +000043extern void console_cursor(int state);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020044static int blinkCount = CONFIG_SYS_CONSOLE_BLINK_COUNT;
Gabe Blackdd4a5b22011-11-14 19:24:14 +000045static int cursor_state;
wdenkc6097192002-11-03 00:24:07 +000046#endif
47
48/* locals */
49
Wolfgang Denkbfc81252006-03-06 13:03:37 +010050static int kbd_input = -1; /* no input yet */
51static int kbd_mapping = KBD_US; /* default US keyboard */
52static int kbd_flags = NORMAL; /* after reset */
Gabe Blackdd4a5b22011-11-14 19:24:14 +000053static int kbd_state; /* unshift code */
wdenkc6097192002-11-03 00:24:07 +000054
Gabe Blackdd4a5b22011-11-14 19:24:14 +000055static void kbd_conv_char(unsigned char scan_code);
56static void kbd_led_set(void);
57static void kbd_normal(unsigned char scan_code);
58static void kbd_shift(unsigned char scan_code);
59static void kbd_ctrl(unsigned char scan_code);
60static void kbd_num(unsigned char scan_code);
61static void kbd_caps(unsigned char scan_code);
62static void kbd_scroll(unsigned char scan_code);
63static void kbd_alt(unsigned char scan_code);
64static int kbd_input_empty(void);
65static int kbd_reset(void);
wdenkc6097192002-11-03 00:24:07 +000066
Gabe Blackdd4a5b22011-11-14 19:24:14 +000067static unsigned char kbd_fct_map[144] = {
68 /* kbd_fct_map table for scan code */
69 0, AS, AS, AS, AS, AS, AS, AS, /* scan 0- 7 */
70 AS, AS, AS, AS, AS, AS, AS, AS, /* scan 8- F */
71 AS, AS, AS, AS, AS, AS, AS, AS, /* scan 10-17 */
72 AS, AS, AS, AS, AS, CN, AS, AS, /* scan 18-1F */
73 AS, AS, AS, AS, AS, AS, AS, AS, /* scan 20-27 */
74 AS, AS, SH, AS, AS, AS, AS, AS, /* scan 28-2F */
75 AS, AS, AS, AS, AS, AS, SH, AS, /* scan 30-37 */
76 AS, AS, CP, 0, 0, 0, 0, 0, /* scan 38-3F */
77 0, 0, 0, 0, 0, NM, ST, ES, /* scan 40-47 */
78 ES, ES, ES, ES, ES, ES, ES, ES, /* scan 48-4F */
79 ES, ES, ES, ES, 0, 0, AS, 0, /* scan 50-57 */
80 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
81 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
82 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
83 AS, 0, 0, AS, 0, 0, AS, 0, /* scan 70-77 */
84 0, AS, 0, 0, 0, AS, 0, 0, /* scan 78-7F */
85 AS, CN, AS, AS, AK, ST, EX, EX, /* enhanced */
86 AS, EX, EX, AS, EX, AS, EX, EX /* enhanced */
87 };
wdenkc6097192002-11-03 00:24:07 +000088
Gabe Blackdd4a5b22011-11-14 19:24:14 +000089static unsigned char kbd_key_map[2][5][144] = {
90 { /* US keyboard */
91 { /* unshift code */
92 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
93 '7', '8', '9', '0', '-', '=', 0x08, '\t', /* scan 8- F */
94 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* scan 10-17 */
95 'o', 'p', '[', ']', '\r', CN, 'a', 's', /* scan 18-1F */
96 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* scan 20-27 */
97 '\'', '`', SH, '\\', 'z', 'x', 'c', 'v', /* scan 28-2F */
98 'b', 'n', 'm', ',', '.', '/', SH, '*', /* scan 30-37 */
99 ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
100 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
101 '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
102 '2', '3', '0', '.', 0, 0, 0, 0, /* scan 50-57 */
103 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
104 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
105 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
106 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
107 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
108 '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
109 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
110 },
111 { /* shift code */
112 0, 0x1b, '!', '@', '#', '$', '%', '^', /* scan 0- 7 */
113 '&', '*', '(', ')', '_', '+', 0x08, '\t', /* scan 8- F */
114 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', /* scan 10-17 */
115 'O', 'P', '{', '}', '\r', CN, 'A', 'S', /* scan 18-1F */
116 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* scan 20-27 */
117 '"', '~', SH, '|', 'Z', 'X', 'C', 'V', /* scan 28-2F */
118 'B', 'N', 'M', '<', '>', '?', SH, '*', /* scan 30-37 */
119 ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
120 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
121 '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
122 '2', '3', '0', '.', 0, 0, 0, 0, /* scan 50-57 */
123 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
124 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
125 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
126 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
127 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
128 '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
129 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
130 },
131 { /* control code */
132 0xff, 0x1b, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, /* scan 0- 7 */
133 0x1e, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, '\t', /* scan 8- F */
134 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, /* scan 10-17 */
135 0x0f, 0x10, 0x1b, 0x1d, '\r', CN, 0x01, 0x13, /* scan 18-1F */
136 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0xff, /* scan 20-27 */
137 0xff, 0x1c, SH, 0xff, 0x1a, 0x18, 0x03, 0x16, /* scan 28-2F */
138 0x02, 0x0e, 0x0d, 0xff, 0xff, 0xff, SH, 0xff, /* scan 30-37 */
139 0xff, 0xff, CP, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
140 0xff, 0xff, 0xff, 0xff, 0xff, NM, ST, 0xff, /* scan 40-47 */
141 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48-4F */
142 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50-57 */
143 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58-5F */
144 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60-67 */
145 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68-6F */
146 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70-77 */
147 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78-7F */
148 '\r', CN, '/', '*', ' ', ST, 0xff, 0xff, /* extended */
149 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
150 },
151 { /* non numeric code */
152 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
153 '7', '8', '9', '0', '-', '=', 0x08, '\t', /* scan 8- F */
154 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* scan 10-17 */
155 'o', 'p', '[', ']', '\r', CN, 'a', 's', /* scan 18-1F */
156 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* scan 20-27 */
157 '\'', '`', SH, '\\', 'z', 'x', 'c', 'v', /* scan 28-2F */
158 'b', 'n', 'm', ',', '.', '/', SH, '*', /* scan 30-37 */
159 ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
160 0, 0, 0, 0, 0, NM, ST, 'w', /* scan 40-47 */
161 'x', 'y', 'l', 't', 'u', 'v', 'm', 'q', /* scan 48-4F */
162 'r', 's', 'p', 'n', 0, 0, 0, 0, /* scan 50-57 */
163 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
164 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
165 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
166 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
167 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
168 '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
169 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
170 },
171 { /* right alt mode - not used in US keyboard */
172 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 0 - 7 */
173 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 8 - F */
174 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 10 -17 */
175 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 18 -1F */
176 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 20 -27 */
177 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 28 -2F */
178 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 30 -37 */
179 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38 -3F */
180 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 40 -47 */
181 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48 -4F */
182 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50 -57 */
183 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58 -5F */
184 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60 -67 */
185 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68 -6F */
186 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70 -77 */
187 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78 -7F */
188 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* extended */
189 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
190 }
191 },
192 { /* german keyboard */
193 { /* unshift code */
194 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
195 '7', '8', '9', '0', 0xe1, '\'', 0x08, '\t', /* scan 8- F */
196 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* scan 10-17 */
197 'o', 'p', 0x81, '+', '\r', CN, 'a', 's', /* scan 18-1F */
198 'd', 'f', 'g', 'h', 'j', 'k', 'l', 0x94, /* scan 20-27 */
199 0x84, '^', SH, '#', 'y', 'x', 'c', 'v', /* scan 28-2F */
200 'b', 'n', 'm', ',', '.', '-', SH, '*', /* scan 30-37 */
201 ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
202 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
203 '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
204 '2', '3', '0', ',', 0, 0, '<', 0, /* scan 50-57 */
205 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
206 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
207 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
208 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
209 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
210 '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
211 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
212 },
213 { /* shift code */
214 0, 0x1b, '!', '"', 0x15, '$', '%', '&', /* scan 0- 7 */
215 '/', '(', ')', '=', '?', '`', 0x08, '\t', /* scan 8- F */
216 'Q', 'W', 'E', 'R', 'T', 'Z', 'U', 'I', /* scan 10-17 */
217 'O', 'P', 0x9a, '*', '\r', CN, 'A', 'S', /* scan 18-1F */
218 'D', 'F', 'G', 'H', 'J', 'K', 'L', 0x99, /* scan 20-27 */
219 0x8e, 0xf8, SH, '\'', 'Y', 'X', 'C', 'V', /* scan 28-2F */
220 'B', 'N', 'M', ';', ':', '_', SH, '*', /* scan 30-37 */
221 ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
222 0, 0, 0, 0, 0, NM, ST, '7', /* scan 40-47 */
223 '8', '9', '-', '4', '5', '6', '+', '1', /* scan 48-4F */
224 '2', '3', '0', ',', 0, 0, '>', 0, /* scan 50-57 */
225 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
226 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
227 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
228 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
229 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
230 '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
231 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
232 },
233 { /* control code */
234 0xff, 0x1b, 0xff, 0x00, 0xff, 0xff, 0xff, 0xff, /* scan 0- 7 */
235 0x1e, 0xff, 0xff, 0xff, 0x1f, 0xff, 0xff, '\t', /* scan 8- F */
236 0x11, 0x17, 0x05, 0x12, 0x14, 0x19, 0x15, 0x09, /* scan 10-17 */
237 0x0f, 0x10, 0x1b, 0x1d, '\r', CN, 0x01, 0x13, /* scan 18-1F */
238 0x04, 0x06, 0x07, 0x08, 0x0a, 0x0b, 0x0c, 0xff, /* scan 20-27 */
239 0xff, 0x1c, SH, 0xff, 0x1a, 0x18, 0x03, 0x16, /* scan 28-2F */
240 0x02, 0x0e, 0x0d, 0xff, 0xff, 0xff, SH, 0xff, /* scan 30-37 */
241 0xff, 0xff, CP, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38-3F */
242 0xff, 0xff, 0xff, 0xff, 0xff, NM, ST, 0xff, /* scan 40-47 */
243 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48-4F */
244 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 50-57 */
245 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58-5F */
246 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60-67 */
247 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68-6F */
248 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70-77 */
249 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78-7F */
250 '\r', CN, '/', '*', ' ', ST, 0xff, 0xff, /* extended */
251 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
252 },
253 { /* non numeric code */
254 0, 0x1b, '1', '2', '3', '4', '5', '6', /* scan 0- 7 */
255 '7', '8', '9', '0', 0xe1, '\'', 0x08, '\t', /* scan 8- F */
256 'q', 'w', 'e', 'r', 't', 'z', 'u', 'i', /* scan 10-17 */
257 'o', 'p', 0x81, '+', '\r', CN, 'a', 's', /* scan 18-1F */
258 'd', 'f', 'g', 'h', 'j', 'k', 'l', 0x94, /* scan 20-27 */
259 0x84, '^', SH, 0, 'y', 'x', 'c', 'v', /* scan 28-2F */
260 'b', 'n', 'm', ',', '.', '-', SH, '*', /* scan 30-37 */
261 ' ', ' ', CP, 0, 0, 0, 0, 0, /* scan 38-3F */
262 0, 0, 0, 0, 0, NM, ST, 'w', /* scan 40-47 */
263 'x', 'y', 'l', 't', 'u', 'v', 'm', 'q', /* scan 48-4F */
264 'r', 's', 'p', 'n', 0, 0, '<', 0, /* scan 50-57 */
265 0, 0, 0, 0, 0, 0, 0, 0, /* scan 58-5F */
266 0, 0, 0, 0, 0, 0, 0, 0, /* scan 60-67 */
267 0, 0, 0, 0, 0, 0, 0, 0, /* scan 68-6F */
268 0, 0, 0, 0, 0, 0, 0, 0, /* scan 70-77 */
269 0, 0, 0, 0, 0, 0, 0, 0, /* scan 78-7F */
270 '\r', CN, '/', '*', ' ', ST, 'F', 'A', /* extended */
271 0, 'D', 'C', 0, 'B', 0, '@', 'P' /* extended */
272 },
273 { /* Right alt mode - is used in German keyboard */
274 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 0 - 7 */
275 '{', '[', ']', '}', '\\', 0xff, 0xff, 0xff, /* scan 8 - F */
276 '@', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 10 -17 */
277 0xff, 0xff, 0xff, '~', 0xff, 0xff, 0xff, 0xff, /* scan 18 -1F */
278 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 20 -27 */
279 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 28 -2F */
280 0xff, 0xff, 0xe6, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 30 -37 */
281 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 38 -3F */
282 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 40 -47 */
283 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 48 -4F */
284 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, '|', 0xff, /* scan 50 -57 */
285 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 58 -5F */
286 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 60 -67 */
287 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 68 -6F */
288 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 70 -77 */
289 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* scan 78 -7F */
290 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* extended */
291 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff /* extended */
292 }
293 }
294 };
wdenkc6097192002-11-03 00:24:07 +0000295
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000296static unsigned char ext_key_map[] = {
297 0x1c, /* keypad enter */
298 0x1d, /* right control */
299 0x35, /* keypad slash */
300 0x37, /* print screen */
301 0x38, /* right alt */
302 0x46, /* break */
303 0x47, /* editpad home */
304 0x48, /* editpad up */
305 0x49, /* editpad pgup */
306 0x4b, /* editpad left */
307 0x4d, /* editpad right */
308 0x4f, /* editpad end */
309 0x50, /* editpad dn */
310 0x51, /* editpad pgdn */
311 0x52, /* editpad ins */
312 0x53, /* editpad del */
313 0x00 /* map end */
314 };
wdenkc6097192002-11-03 00:24:07 +0000315
Gabe Black22e0f5a2011-11-14 20:18:12 +0000316/******************************************************************************/
317
318static int kbd_controller_present(void)
319{
320 return in8(I8042_STATUS_REG) != 0xff;
321}
322
wdenkc6097192002-11-03 00:24:07 +0000323/*******************************************************************************
324 *
325 * i8042_kbd_init - reset keyboard and init state flags
326 */
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000327int i8042_kbd_init(void)
wdenkc6097192002-11-03 00:24:07 +0000328{
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000329 int keymap, try;
330 char *penv;
wdenkc6097192002-11-03 00:24:07 +0000331
Gabe Black22e0f5a2011-11-14 20:18:12 +0000332 if (!kbd_controller_present())
333 return -1;
334
Stefan Roesea7b9fb92006-01-18 20:05:34 +0100335#ifdef CONFIG_USE_CPCIDVI
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000336 penv = getenv("console");
337 if (penv != NULL) {
338 if (strncmp(penv, "serial", 7) == 0)
339 return -1;
340 }
Stefan Roesea7b9fb92006-01-18 20:05:34 +0100341#endif
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000342 /* Init keyboard device (default US layout) */
343 keymap = KBD_US;
344 penv = getenv("keymap");
345 if (penv != NULL) {
346 if (strncmp(penv, "de", 3) == 0)
347 keymap = KBD_GER;
348 }
wdenkc6097192002-11-03 00:24:07 +0000349
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000350 for (try = 0; try < KBD_RESET_TRIES; try++) {
351 if (kbd_reset() == 0) {
352 kbd_mapping = keymap;
353 kbd_flags = NORMAL;
354 kbd_state = 0;
355 kbd_led_set();
356 return 0;
357 }
358 }
359 return -1;
wdenkc6097192002-11-03 00:24:07 +0000360}
361
362
363/*******************************************************************************
364 *
365 * i8042_tstc - test if keyboard input is available
Wolfgang Denkbfc81252006-03-06 13:03:37 +0100366 * option: cursor blinking if called in a loop
wdenkc6097192002-11-03 00:24:07 +0000367 */
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000368int i8042_tstc(void)
wdenkc6097192002-11-03 00:24:07 +0000369{
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000370 unsigned char scan_code = 0;
wdenkc6097192002-11-03 00:24:07 +0000371
372#ifdef CONFIG_CONSOLE_CURSOR
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000373 if (--blinkCount == 0) {
374 cursor_state ^= 1;
375 console_cursor(cursor_state);
376 blinkCount = CONFIG_SYS_CONSOLE_BLINK_COUNT;
377 udelay(10);
378 }
wdenkc6097192002-11-03 00:24:07 +0000379#endif
380
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000381 if ((in8(I8042_STATUS_REG) & 0x01) == 0) {
382 return 0;
383 } else {
384 scan_code = in8(I8042_DATA_REG);
385 if (scan_code == 0xfa)
386 return 0;
387
388 kbd_conv_char(scan_code);
389
390 if (kbd_input != -1)
391 return 1;
392 }
wdenk8bde7f72003-06-27 21:31:46 +0000393 return 0;
wdenkc6097192002-11-03 00:24:07 +0000394}
395
396
397/*******************************************************************************
398 *
399 * i8042_getc - wait till keyboard input is available
Wolfgang Denkbfc81252006-03-06 13:03:37 +0100400 * option: turn on/off cursor while waiting
wdenkc6097192002-11-03 00:24:07 +0000401 */
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000402int i8042_getc(void)
wdenkc6097192002-11-03 00:24:07 +0000403{
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000404 int ret_chr;
405 unsigned char scan_code;
wdenkc6097192002-11-03 00:24:07 +0000406
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000407 while (kbd_input == -1) {
408 while ((in8(I8042_STATUS_REG) & 0x01) == 0) {
wdenkc6097192002-11-03 00:24:07 +0000409#ifdef CONFIG_CONSOLE_CURSOR
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000410 if (--blinkCount == 0) {
411 cursor_state ^= 1;
412 console_cursor(cursor_state);
413 blinkCount = CONFIG_SYS_CONSOLE_BLINK_COUNT;
414 }
415 udelay(10);
wdenkc6097192002-11-03 00:24:07 +0000416#endif
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000417 }
418 scan_code = in8(I8042_DATA_REG);
419 if (scan_code != 0xfa)
420 kbd_conv_char (scan_code);
421 }
422 ret_chr = kbd_input;
423 kbd_input = -1;
424 return ret_chr;
425}
426
427
428/******************************************************************************/
429
430static void kbd_conv_char(unsigned char scan_code)
431{
432 if (scan_code == 0xe0) {
433 kbd_flags |= EXT;
434 return;
wdenk8bde7f72003-06-27 21:31:46 +0000435 }
wdenkc6097192002-11-03 00:24:07 +0000436
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000437 /* if high bit of scan_code, set break flag */
438 if (scan_code & 0x80)
439 kbd_flags |= BRK;
wdenk8bde7f72003-06-27 21:31:46 +0000440 else
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000441 kbd_flags &= ~BRK;
wdenkc6097192002-11-03 00:24:07 +0000442
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000443 if ((scan_code == 0xe1) || (kbd_flags & E1)) {
444 if (scan_code == 0xe1) {
445 kbd_flags ^= BRK; /* reset the break flag */
446 kbd_flags ^= E1; /* bitwise EXOR with E1 flag */
447 }
448 return;
449 }
wdenkc6097192002-11-03 00:24:07 +0000450
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000451 scan_code &= 0x7f;
452
453 if (kbd_flags & EXT) {
454 int i;
455
456 kbd_flags ^= EXT;
457 for (i = 0; ext_key_map[i]; i++) {
458 if (ext_key_map[i] == scan_code) {
459 scan_code = 0x80 + i;
460 break;
461 }
462 }
463 /* not found ? */
464 if (!ext_key_map[i])
465 return;
466 }
467
468 switch (kbd_fct_map[scan_code]) {
469 case AS:
470 kbd_normal(scan_code);
471 break;
472 case SH:
473 kbd_shift(scan_code);
474 break;
475 case CN:
476 kbd_ctrl(scan_code);
477 break;
478 case NM:
479 kbd_num(scan_code);
480 break;
481 case CP:
482 kbd_caps(scan_code);
483 break;
484 case ST:
485 kbd_scroll(scan_code);
486 break;
487 case AK:
488 kbd_alt(scan_code);
489 break;
490 }
491 return;
wdenkc6097192002-11-03 00:24:07 +0000492}
493
494
495/******************************************************************************/
496
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000497static void kbd_normal(unsigned char scan_code)
wdenkc6097192002-11-03 00:24:07 +0000498{
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000499 unsigned char chr;
500
501 if ((kbd_flags & BRK) == NORMAL) {
502 chr = kbd_key_map[kbd_mapping][kbd_state][scan_code];
503 if ((chr == 0xff) || (chr == 0x00))
504 return;
505
506 /* if caps lock convert upper to lower */
507 if (((kbd_flags & CAPS) == CAPS) &&
508 (chr >= 'a' && chr <= 'z')) {
509 chr -= 'a' - 'A';
510 }
511 kbd_input = chr;
512 }
wdenkc6097192002-11-03 00:24:07 +0000513}
514
515
516/******************************************************************************/
517
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000518static void kbd_shift(unsigned char scan_code)
wdenkc6097192002-11-03 00:24:07 +0000519{
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000520 if ((kbd_flags & BRK) == BRK) {
521 kbd_state = AS;
522 kbd_flags &= (~SHIFT);
523 } else {
524 kbd_state = SH;
525 kbd_flags |= SHIFT;
526 }
527}
wdenkc6097192002-11-03 00:24:07 +0000528
wdenkc6097192002-11-03 00:24:07 +0000529
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000530/******************************************************************************/
531
532static void kbd_ctrl(unsigned char scan_code)
533{
534 if ((kbd_flags & BRK) == BRK) {
535 kbd_state = AS;
536 kbd_flags &= (~CTRL);
537 } else {
538 kbd_state = CN;
539 kbd_flags |= CTRL;
540 }
541}
542
543
544/******************************************************************************/
545
546static void kbd_caps(unsigned char scan_code)
547{
548 if ((kbd_flags & BRK) == NORMAL) {
549 kbd_flags ^= CAPS;
550 kbd_led_set(); /* update keyboard LED */
551 }
552}
553
554
555/******************************************************************************/
556
557static void kbd_num(unsigned char scan_code)
558{
559 if ((kbd_flags & BRK) == NORMAL) {
560 kbd_flags ^= NUM;
561 kbd_state = (kbd_flags & NUM) ? AS : NM;
562 kbd_led_set(); /* update keyboard LED */
563 }
564}
565
566
567/******************************************************************************/
568
569static void kbd_scroll(unsigned char scan_code)
570{
571 if ((kbd_flags & BRK) == NORMAL) {
572 kbd_flags ^= STP;
573 kbd_led_set(); /* update keyboard LED */
574 if (kbd_flags & STP)
575 kbd_input = 0x13;
576 else
577 kbd_input = 0x11;
578 }
wdenkc6097192002-11-03 00:24:07 +0000579}
580
581/******************************************************************************/
582
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000583static void kbd_alt(unsigned char scan_code)
wdenkc6097192002-11-03 00:24:07 +0000584{
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000585 if ((kbd_flags & BRK) == BRK) {
586 kbd_state = AS;
587 kbd_flags &= (~ALT);
588 } else {
589 kbd_state = AK;
590 kbd_flags &= ALT;
591 }
592}
wdenkc6097192002-11-03 00:24:07 +0000593
wdenkc6097192002-11-03 00:24:07 +0000594
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000595/******************************************************************************/
wdenkc6097192002-11-03 00:24:07 +0000596
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000597static void kbd_led_set(void)
598{
599 kbd_input_empty();
600 out8(I8042_DATA_REG, 0xed); /* SET LED command */
601 kbd_input_empty();
602 out8(I8042_DATA_REG, (kbd_flags & 0x7)); /* LED bits only */
603}
604
605
606/******************************************************************************/
607
608static int kbd_input_empty(void)
609{
610 int kbdTimeout = KBD_TIMEOUT;
611
612 /* wait for input buf empty */
613 while ((in8(I8042_STATUS_REG) & 0x02) && kbdTimeout--)
614 udelay(1000);
615
Gabe Black22e0f5a2011-11-14 20:18:12 +0000616 return kbdTimeout != -1;
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000617}
618
619/******************************************************************************/
620
621static int kbd_reset(void)
622{
623 if (kbd_input_empty() == 0)
624 return -1;
625
626 out8(I8042_DATA_REG, 0xff);
627
628 udelay(250000);
629
630 if (kbd_input_empty() == 0)
631 return -1;
wdenkc6097192002-11-03 00:24:07 +0000632
Stefan Roesea7b9fb92006-01-18 20:05:34 +0100633#ifdef CONFIG_USE_CPCIDVI
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000634 out8(I8042_COMMAND_REG, 0x60);
Stefan Roesea7b9fb92006-01-18 20:05:34 +0100635#else
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000636 out8(I8042_DATA_REG, 0x60);
Stefan Roesea7b9fb92006-01-18 20:05:34 +0100637#endif
wdenkc6097192002-11-03 00:24:07 +0000638
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000639 if (kbd_input_empty() == 0)
640 return -1;
wdenkc6097192002-11-03 00:24:07 +0000641
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000642 out8(I8042_DATA_REG, 0x45);
wdenkc6097192002-11-03 00:24:07 +0000643
644
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000645 if (kbd_input_empty() == 0)
646 return -1;
wdenkc6097192002-11-03 00:24:07 +0000647
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000648 out8(I8042_COMMAND_REG, 0xae);
wdenkc6097192002-11-03 00:24:07 +0000649
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000650 if (kbd_input_empty() == 0)
651 return -1;
wdenkc6097192002-11-03 00:24:07 +0000652
Gabe Blackdd4a5b22011-11-14 19:24:14 +0000653 return 0;
wdenkc6097192002-11-03 00:24:07 +0000654}