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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * AT and PS/2 keyboard driver | |
3 | * | |
4 | * Copyright (c) 1999-2002 Vojtech Pavlik | |
5 | */ | |
6 | ||
7 | /* | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License version 2 as published by | |
10 | * the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | /* | |
14 | * This driver can handle standard AT keyboards and PS/2 keyboards in | |
15 | * Translated and Raw Set 2 and Set 3, as well as AT keyboards on dumb | |
16 | * input-only controllers and AT keyboards connected over a one way RS232 | |
17 | * converter. | |
18 | */ | |
19 | ||
20 | #include <linux/delay.h> | |
21 | #include <linux/module.h> | |
22 | #include <linux/moduleparam.h> | |
23 | #include <linux/slab.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/init.h> | |
26 | #include <linux/input.h> | |
27 | #include <linux/serio.h> | |
28 | #include <linux/workqueue.h> | |
29 | #include <linux/libps2.h> | |
33d3f07a | 30 | #include <linux/mutex.h> |
1da177e4 LT |
31 | |
32 | #define DRIVER_DESC "AT and PS/2 keyboard driver" | |
33 | ||
34 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>"); | |
35 | MODULE_DESCRIPTION(DRIVER_DESC); | |
36 | MODULE_LICENSE("GPL"); | |
37 | ||
38 | static int atkbd_set = 2; | |
39 | module_param_named(set, atkbd_set, int, 0); | |
40 | MODULE_PARM_DESC(set, "Select keyboard code set (2 = default, 3 = PS/2 native)"); | |
41 | ||
42 | #if defined(__i386__) || defined(__x86_64__) || defined(__hppa__) | |
43 | static int atkbd_reset; | |
44 | #else | |
45 | static int atkbd_reset = 1; | |
46 | #endif | |
47 | module_param_named(reset, atkbd_reset, bool, 0); | |
48 | MODULE_PARM_DESC(reset, "Reset keyboard during initialization"); | |
49 | ||
50 | static int atkbd_softrepeat; | |
51 | module_param_named(softrepeat, atkbd_softrepeat, bool, 0); | |
52 | MODULE_PARM_DESC(softrepeat, "Use software keyboard repeat"); | |
53 | ||
54 | static int atkbd_softraw = 1; | |
55 | module_param_named(softraw, atkbd_softraw, bool, 0); | |
56 | MODULE_PARM_DESC(softraw, "Use software generated rawmode"); | |
57 | ||
0ae051a1 | 58 | static int atkbd_scroll; |
1da177e4 LT |
59 | module_param_named(scroll, atkbd_scroll, bool, 0); |
60 | MODULE_PARM_DESC(scroll, "Enable scroll-wheel on MS Office and similar keyboards"); | |
61 | ||
62 | static int atkbd_extra; | |
63 | module_param_named(extra, atkbd_extra, bool, 0); | |
64 | MODULE_PARM_DESC(extra, "Enable extra LEDs and keys on IBM RapidAcces, EzKey and similar keyboards"); | |
65 | ||
1da177e4 LT |
66 | /* |
67 | * Scancode to keycode tables. These are just the default setting, and | |
68 | * are loadable via an userland utility. | |
69 | */ | |
70 | ||
71 | static unsigned char atkbd_set2_keycode[512] = { | |
72 | ||
73 | #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES | |
74 | ||
75 | /* XXX: need a more general approach */ | |
76 | ||
77 | #include "hpps2atkbd.h" /* include the keyboard scancodes */ | |
78 | ||
79 | #else | |
80 | 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117, | |
81 | 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0, | |
82 | 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183, | |
83 | 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185, | |
84 | 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0, | |
85 | 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85, | |
86 | 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0, | |
87 | 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99, | |
88 | ||
89 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
90 | 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125, | |
91 | 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127, | |
72a42f24 | 92 | 159, 0,115, 0,164, 0, 0,116,158, 0,172,166, 0, 0, 0,142, |
1da177e4 LT |
93 | 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0, |
94 | 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0, | |
95 | 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112, | |
96 | 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0, | |
97 | ||
98 | 0, 0, 0, 65, 99, | |
99 | #endif | |
100 | }; | |
101 | ||
102 | static unsigned char atkbd_set3_keycode[512] = { | |
103 | ||
104 | 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60, | |
105 | 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62, | |
106 | 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64, | |
107 | 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66, | |
108 | 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68, | |
109 | 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70, | |
110 | 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104, | |
111 | 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183, | |
112 | ||
113 | 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0, | |
72a42f24 | 114 | 0,139,172,163,165,115,152,172,166,140,160,154,113,114,167,168, |
1da177e4 LT |
115 | 148,149,147,140 |
116 | }; | |
117 | ||
118 | static unsigned char atkbd_unxlate_table[128] = { | |
119 | 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13, | |
120 | 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27, | |
121 | 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42, | |
122 | 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3, | |
123 | 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105, | |
124 | 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63, | |
125 | 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111, | |
126 | 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110 | |
127 | }; | |
128 | ||
129 | #define ATKBD_CMD_SETLEDS 0x10ed | |
130 | #define ATKBD_CMD_GSCANSET 0x11f0 | |
131 | #define ATKBD_CMD_SSCANSET 0x10f0 | |
132 | #define ATKBD_CMD_GETID 0x02f2 | |
133 | #define ATKBD_CMD_SETREP 0x10f3 | |
134 | #define ATKBD_CMD_ENABLE 0x00f4 | |
135 | #define ATKBD_CMD_RESET_DIS 0x00f5 | |
136 | #define ATKBD_CMD_SETALL_MBR 0x00fa | |
137 | #define ATKBD_CMD_RESET_BAT 0x02ff | |
138 | #define ATKBD_CMD_RESEND 0x00fe | |
139 | #define ATKBD_CMD_EX_ENABLE 0x10ea | |
140 | #define ATKBD_CMD_EX_SETLEDS 0x20eb | |
141 | #define ATKBD_CMD_OK_GETID 0x02e8 | |
142 | ||
143 | #define ATKBD_RET_ACK 0xfa | |
144 | #define ATKBD_RET_NAK 0xfe | |
145 | #define ATKBD_RET_BAT 0xaa | |
146 | #define ATKBD_RET_EMUL0 0xe0 | |
147 | #define ATKBD_RET_EMUL1 0xe1 | |
148 | #define ATKBD_RET_RELEASE 0xf0 | |
0ae051a1 DT |
149 | #define ATKBD_RET_HANJA 0xf1 |
150 | #define ATKBD_RET_HANGEUL 0xf2 | |
1da177e4 LT |
151 | #define ATKBD_RET_ERR 0xff |
152 | ||
153 | #define ATKBD_KEY_UNKNOWN 0 | |
154 | #define ATKBD_KEY_NULL 255 | |
155 | ||
156 | #define ATKBD_SCR_1 254 | |
157 | #define ATKBD_SCR_2 253 | |
158 | #define ATKBD_SCR_4 252 | |
159 | #define ATKBD_SCR_8 251 | |
160 | #define ATKBD_SCR_CLICK 250 | |
161 | #define ATKBD_SCR_LEFT 249 | |
162 | #define ATKBD_SCR_RIGHT 248 | |
163 | ||
164 | #define ATKBD_SPECIAL 248 | |
165 | ||
0d4c8597 DT |
166 | #define ATKBD_LED_EVENT_BIT 0 |
167 | #define ATKBD_REP_EVENT_BIT 1 | |
168 | ||
0ae051a1 DT |
169 | #define ATKBD_XL_ERR 0x01 |
170 | #define ATKBD_XL_BAT 0x02 | |
171 | #define ATKBD_XL_ACK 0x04 | |
172 | #define ATKBD_XL_NAK 0x08 | |
173 | #define ATKBD_XL_HANGEUL 0x10 | |
174 | #define ATKBD_XL_HANJA 0x20 | |
175 | ||
1da177e4 LT |
176 | static struct { |
177 | unsigned char keycode; | |
178 | unsigned char set2; | |
179 | } atkbd_scroll_keys[] = { | |
180 | { ATKBD_SCR_1, 0xc5 }, | |
5212dd58 VP |
181 | { ATKBD_SCR_2, 0x9d }, |
182 | { ATKBD_SCR_4, 0xa4 }, | |
183 | { ATKBD_SCR_8, 0x9b }, | |
1da177e4 LT |
184 | { ATKBD_SCR_CLICK, 0xe0 }, |
185 | { ATKBD_SCR_LEFT, 0xcb }, | |
186 | { ATKBD_SCR_RIGHT, 0xd2 }, | |
187 | }; | |
188 | ||
189 | /* | |
190 | * The atkbd control structure | |
191 | */ | |
192 | ||
193 | struct atkbd { | |
194 | ||
3c42f0c3 DT |
195 | struct ps2dev ps2dev; |
196 | struct input_dev *dev; | |
1da177e4 LT |
197 | |
198 | /* Written only during init */ | |
199 | char name[64]; | |
200 | char phys[32]; | |
1da177e4 LT |
201 | |
202 | unsigned short id; | |
203 | unsigned char keycode[512]; | |
204 | unsigned char set; | |
205 | unsigned char translated; | |
206 | unsigned char extra; | |
207 | unsigned char write; | |
208 | unsigned char softrepeat; | |
209 | unsigned char softraw; | |
210 | unsigned char scroll; | |
211 | unsigned char enabled; | |
212 | ||
213 | /* Accessed only from interrupt */ | |
214 | unsigned char emul; | |
215 | unsigned char resend; | |
216 | unsigned char release; | |
0ae051a1 | 217 | unsigned long xl_bit; |
1da177e4 LT |
218 | unsigned int last; |
219 | unsigned long time; | |
86255d9d | 220 | unsigned long err_count; |
0d4c8597 | 221 | |
da4249c9 DT |
222 | struct delayed_work event_work; |
223 | unsigned long event_jiffies; | |
33d3f07a | 224 | struct mutex event_mutex; |
0d4c8597 | 225 | unsigned long event_mask; |
1da177e4 LT |
226 | }; |
227 | ||
228 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, | |
229 | ssize_t (*handler)(struct atkbd *, char *)); | |
230 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, | |
231 | ssize_t (*handler)(struct atkbd *, const char *, size_t)); | |
232 | #define ATKBD_DEFINE_ATTR(_name) \ | |
233 | static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ | |
234 | static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ | |
86255d9d DT |
235 | static ssize_t atkbd_do_show_##_name(struct device *d, \ |
236 | struct device_attribute *attr, char *b) \ | |
1da177e4 LT |
237 | { \ |
238 | return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ | |
239 | } \ | |
86255d9d DT |
240 | static ssize_t atkbd_do_set_##_name(struct device *d, \ |
241 | struct device_attribute *attr, const char *b, size_t s) \ | |
1da177e4 LT |
242 | { \ |
243 | return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \ | |
244 | } \ | |
d083e906 | 245 | static struct device_attribute atkbd_attr_##_name = \ |
1da177e4 LT |
246 | __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name); |
247 | ||
248 | ATKBD_DEFINE_ATTR(extra); | |
249 | ATKBD_DEFINE_ATTR(scroll); | |
250 | ATKBD_DEFINE_ATTR(set); | |
251 | ATKBD_DEFINE_ATTR(softrepeat); | |
252 | ATKBD_DEFINE_ATTR(softraw); | |
253 | ||
86255d9d DT |
254 | #define ATKBD_DEFINE_RO_ATTR(_name) \ |
255 | static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ | |
256 | static ssize_t atkbd_do_show_##_name(struct device *d, \ | |
257 | struct device_attribute *attr, char *b) \ | |
258 | { \ | |
259 | return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ | |
260 | } \ | |
261 | static struct device_attribute atkbd_attr_##_name = \ | |
262 | __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL); | |
263 | ||
264 | ATKBD_DEFINE_RO_ATTR(err_count); | |
265 | ||
266 | static struct attribute *atkbd_attributes[] = { | |
267 | &atkbd_attr_extra.attr, | |
268 | &atkbd_attr_scroll.attr, | |
269 | &atkbd_attr_set.attr, | |
270 | &atkbd_attr_softrepeat.attr, | |
271 | &atkbd_attr_softraw.attr, | |
272 | &atkbd_attr_err_count.attr, | |
273 | NULL | |
274 | }; | |
275 | ||
276 | static struct attribute_group atkbd_attribute_group = { | |
277 | .attrs = atkbd_attributes, | |
278 | }; | |
279 | ||
0ae051a1 DT |
280 | static const unsigned int xl_table[] = { |
281 | ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, | |
282 | ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, | |
283 | }; | |
1da177e4 | 284 | |
0ae051a1 DT |
285 | /* |
286 | * Checks if we should mangle the scancode to extract 'release' bit | |
287 | * in translated mode. | |
288 | */ | |
289 | static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code) | |
1da177e4 | 290 | { |
0ae051a1 DT |
291 | int i; |
292 | ||
293 | if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) | |
294 | return 0; | |
295 | ||
296 | for (i = 0; i < ARRAY_SIZE(xl_table); i++) | |
297 | if (code == xl_table[i]) | |
298 | return test_bit(i, &xl_bit); | |
299 | ||
300 | return 1; | |
301 | } | |
302 | ||
303 | /* | |
304 | * Calculates new value of xl_bit so the driver can distinguish | |
305 | * between make/break pair of scancodes for select keys and PS/2 | |
306 | * protocol responses. | |
307 | */ | |
308 | static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) | |
309 | { | |
310 | int i; | |
311 | ||
312 | for (i = 0; i < ARRAY_SIZE(xl_table); i++) { | |
313 | if (!((code ^ xl_table[i]) & 0x7f)) { | |
314 | if (code & 0x80) | |
315 | __clear_bit(i, &atkbd->xl_bit); | |
316 | else | |
317 | __set_bit(i, &atkbd->xl_bit); | |
318 | break; | |
319 | } | |
320 | } | |
321 | } | |
322 | ||
323 | /* | |
324 | * Encode the scancode, 0xe0 prefix, and high bit into a single integer, | |
325 | * keeping kernel 2.4 compatibility for set 2 | |
326 | */ | |
327 | static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) | |
328 | { | |
329 | if (atkbd->set == 3) { | |
330 | if (atkbd->emul == 1) | |
331 | code |= 0x100; | |
332 | } else { | |
333 | code = (code & 0x7f) | ((code & 0x80) << 1); | |
334 | if (atkbd->emul == 1) | |
335 | code |= 0x80; | |
336 | } | |
337 | ||
338 | return code; | |
1da177e4 LT |
339 | } |
340 | ||
341 | /* | |
342 | * atkbd_interrupt(). Here takes place processing of data received from | |
343 | * the keyboard into events. | |
344 | */ | |
345 | ||
346 | static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, | |
7d12e780 | 347 | unsigned int flags) |
1da177e4 LT |
348 | { |
349 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
0ae051a1 | 350 | struct input_dev *dev = atkbd->dev; |
1da177e4 | 351 | unsigned int code = data; |
0ae051a1 | 352 | int scroll = 0, hscroll = 0, click = -1, add_release_event = 0; |
1da177e4 | 353 | int value; |
0ae051a1 | 354 | unsigned char keycode; |
1da177e4 LT |
355 | |
356 | #ifdef ATKBD_DEBUG | |
357 | printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); | |
358 | #endif | |
359 | ||
360 | #if !defined(__i386__) && !defined (__x86_64__) | |
361 | if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) { | |
362 | printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags); | |
363 | serio_write(serio, ATKBD_CMD_RESEND); | |
364 | atkbd->resend = 1; | |
365 | goto out; | |
366 | } | |
367 | ||
368 | if (!flags && data == ATKBD_RET_ACK) | |
369 | atkbd->resend = 0; | |
370 | #endif | |
371 | ||
372 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK)) | |
373 | if (ps2_handle_ack(&atkbd->ps2dev, data)) | |
374 | goto out; | |
375 | ||
376 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD)) | |
377 | if (ps2_handle_response(&atkbd->ps2dev, data)) | |
378 | goto out; | |
379 | ||
380 | if (!atkbd->enabled) | |
381 | goto out; | |
382 | ||
0ae051a1 | 383 | input_event(dev, EV_MSC, MSC_RAW, code); |
1da177e4 LT |
384 | |
385 | if (atkbd->translated) { | |
386 | ||
0ae051a1 | 387 | if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { |
1da177e4 LT |
388 | atkbd->release = code >> 7; |
389 | code &= 0x7f; | |
390 | } | |
391 | ||
0ae051a1 DT |
392 | if (!atkbd->emul) |
393 | atkbd_calculate_xl_bit(atkbd, data); | |
1da177e4 LT |
394 | } |
395 | ||
396 | switch (code) { | |
397 | case ATKBD_RET_BAT: | |
398 | atkbd->enabled = 0; | |
dbc26344 | 399 | serio_reconnect(atkbd->ps2dev.serio); |
1da177e4 LT |
400 | goto out; |
401 | case ATKBD_RET_EMUL0: | |
402 | atkbd->emul = 1; | |
403 | goto out; | |
404 | case ATKBD_RET_EMUL1: | |
405 | atkbd->emul = 2; | |
406 | goto out; | |
407 | case ATKBD_RET_RELEASE: | |
408 | atkbd->release = 1; | |
409 | goto out; | |
0ae051a1 DT |
410 | case ATKBD_RET_ACK: |
411 | case ATKBD_RET_NAK: | |
9f7a60d6 QY |
412 | if (printk_ratelimit()) |
413 | printk(KERN_WARNING "atkbd.c: Spurious %s on %s. " | |
414 | "Some program might be trying access hardware directly.\n", | |
415 | data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); | |
1da177e4 | 416 | goto out; |
0ae051a1 | 417 | case ATKBD_RET_HANGEUL: |
1da177e4 | 418 | case ATKBD_RET_HANJA: |
0ae051a1 DT |
419 | /* |
420 | * These keys do not report release and thus need to be | |
421 | * flagged properly | |
422 | */ | |
423 | add_release_event = 1; | |
424 | break; | |
1da177e4 | 425 | case ATKBD_RET_ERR: |
86255d9d DT |
426 | atkbd->err_count++; |
427 | #ifdef ATKBD_DEBUG | |
1da177e4 | 428 | printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); |
86255d9d | 429 | #endif |
1da177e4 LT |
430 | goto out; |
431 | } | |
432 | ||
0ae051a1 DT |
433 | code = atkbd_compat_scancode(atkbd, code); |
434 | ||
435 | if (atkbd->emul && --atkbd->emul) | |
436 | goto out; | |
437 | ||
438 | keycode = atkbd->keycode[code]; | |
1da177e4 | 439 | |
0ae051a1 DT |
440 | if (keycode != ATKBD_KEY_NULL) |
441 | input_event(dev, EV_MSC, MSC_SCAN, code); | |
1da177e4 | 442 | |
0ae051a1 | 443 | switch (keycode) { |
1da177e4 LT |
444 | case ATKBD_KEY_NULL: |
445 | break; | |
446 | case ATKBD_KEY_UNKNOWN: | |
0ae051a1 DT |
447 | printk(KERN_WARNING |
448 | "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n", | |
449 | atkbd->release ? "released" : "pressed", | |
450 | atkbd->translated ? "translated" : "raw", | |
451 | atkbd->set, code, serio->phys); | |
452 | printk(KERN_WARNING | |
453 | "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n", | |
454 | code & 0x80 ? "e0" : "", code & 0x7f); | |
455 | input_sync(dev); | |
1da177e4 LT |
456 | break; |
457 | case ATKBD_SCR_1: | |
458 | scroll = 1 - atkbd->release * 2; | |
459 | break; | |
460 | case ATKBD_SCR_2: | |
461 | scroll = 2 - atkbd->release * 4; | |
462 | break; | |
463 | case ATKBD_SCR_4: | |
464 | scroll = 4 - atkbd->release * 8; | |
465 | break; | |
466 | case ATKBD_SCR_8: | |
467 | scroll = 8 - atkbd->release * 16; | |
468 | break; | |
469 | case ATKBD_SCR_CLICK: | |
470 | click = !atkbd->release; | |
471 | break; | |
472 | case ATKBD_SCR_LEFT: | |
473 | hscroll = -1; | |
474 | break; | |
475 | case ATKBD_SCR_RIGHT: | |
476 | hscroll = 1; | |
477 | break; | |
478 | default: | |
0ae051a1 DT |
479 | if (atkbd->release) { |
480 | value = 0; | |
481 | atkbd->last = 0; | |
482 | } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { | |
483 | /* Workaround Toshiba laptop multiple keypress */ | |
484 | value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; | |
485 | } else { | |
486 | value = 1; | |
487 | atkbd->last = code; | |
488 | atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; | |
1da177e4 LT |
489 | } |
490 | ||
f8b4c46c | 491 | input_event(dev, EV_KEY, keycode, value); |
0ae051a1 DT |
492 | input_sync(dev); |
493 | ||
494 | if (value && add_release_event) { | |
495 | input_report_key(dev, keycode, 0); | |
496 | input_sync(dev); | |
497 | } | |
1da177e4 LT |
498 | } |
499 | ||
500 | if (atkbd->scroll) { | |
1da177e4 | 501 | if (click != -1) |
0ae051a1 DT |
502 | input_report_key(dev, BTN_MIDDLE, click); |
503 | input_report_rel(dev, REL_WHEEL, scroll); | |
504 | input_report_rel(dev, REL_HWHEEL, hscroll); | |
505 | input_sync(dev); | |
1da177e4 LT |
506 | } |
507 | ||
508 | atkbd->release = 0; | |
509 | out: | |
510 | return IRQ_HANDLED; | |
511 | } | |
512 | ||
3d0f0fa0 | 513 | static int atkbd_set_repeat_rate(struct atkbd *atkbd) |
1da177e4 | 514 | { |
1da177e4 LT |
515 | const short period[32] = |
516 | { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125, | |
517 | 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 }; | |
518 | const short delay[4] = | |
519 | { 250, 500, 750, 1000 }; | |
0d4c8597 | 520 | |
3d0f0fa0 DT |
521 | struct input_dev *dev = atkbd->dev; |
522 | unsigned char param; | |
523 | int i = 0, j = 0; | |
524 | ||
525 | while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD]) | |
526 | i++; | |
527 | dev->rep[REP_PERIOD] = period[i]; | |
528 | ||
8ea371fb | 529 | while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) |
3d0f0fa0 DT |
530 | j++; |
531 | dev->rep[REP_DELAY] = delay[j]; | |
532 | ||
533 | param = i | (j << 5); | |
534 | return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP); | |
535 | } | |
536 | ||
537 | static int atkbd_set_leds(struct atkbd *atkbd) | |
538 | { | |
0d4c8597 | 539 | struct input_dev *dev = atkbd->dev; |
1da177e4 | 540 | unsigned char param[2]; |
1da177e4 | 541 | |
3d0f0fa0 DT |
542 | param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0) |
543 | | (test_bit(LED_NUML, dev->led) ? 2 : 0) | |
544 | | (test_bit(LED_CAPSL, dev->led) ? 4 : 0); | |
545 | if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) | |
546 | return -1; | |
0d4c8597 | 547 | |
3d0f0fa0 DT |
548 | if (atkbd->extra) { |
549 | param[0] = 0; | |
550 | param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0) | |
551 | | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0) | |
552 | | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0) | |
553 | | (test_bit(LED_MISC, dev->led) ? 0x10 : 0) | |
554 | | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0); | |
555 | if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS)) | |
556 | return -1; | |
0d4c8597 DT |
557 | } |
558 | ||
3d0f0fa0 DT |
559 | return 0; |
560 | } | |
561 | ||
562 | /* | |
563 | * atkbd_event_work() is used to complete processing of events that | |
564 | * can not be processed by input_event() which is often called from | |
565 | * interrupt context. | |
566 | */ | |
567 | ||
65f27f38 | 568 | static void atkbd_event_work(struct work_struct *work) |
3d0f0fa0 | 569 | { |
da4249c9 | 570 | struct atkbd *atkbd = container_of(work, struct atkbd, event_work.work); |
3d0f0fa0 DT |
571 | |
572 | mutex_lock(&atkbd->event_mutex); | |
573 | ||
574 | if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) | |
575 | atkbd_set_leds(atkbd); | |
576 | ||
577 | if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) | |
578 | atkbd_set_repeat_rate(atkbd); | |
0d4c8597 | 579 | |
33d3f07a | 580 | mutex_unlock(&atkbd->event_mutex); |
0d4c8597 DT |
581 | } |
582 | ||
da4249c9 DT |
583 | /* |
584 | * Schedule switch for execution. We need to throttle requests, | |
585 | * otherwise keyboard may become unresponsive. | |
586 | */ | |
587 | static void atkbd_schedule_event_work(struct atkbd *atkbd, int event_bit) | |
588 | { | |
589 | unsigned long delay = msecs_to_jiffies(50); | |
590 | ||
591 | if (time_after(jiffies, atkbd->event_jiffies + delay)) | |
592 | delay = 0; | |
593 | ||
594 | atkbd->event_jiffies = jiffies; | |
595 | set_bit(event_bit, &atkbd->event_mask); | |
596 | wmb(); | |
597 | schedule_delayed_work(&atkbd->event_work, delay); | |
598 | } | |
599 | ||
0d4c8597 DT |
600 | /* |
601 | * Event callback from the input module. Events that change the state of | |
602 | * the hardware are processed here. If action can not be performed in | |
603 | * interrupt context it is offloaded to atkbd_event_work. | |
604 | */ | |
605 | ||
da4249c9 DT |
606 | static int atkbd_event(struct input_dev *dev, |
607 | unsigned int type, unsigned int code, int value) | |
0d4c8597 | 608 | { |
b356872f | 609 | struct atkbd *atkbd = input_get_drvdata(dev); |
0d4c8597 | 610 | |
1da177e4 LT |
611 | if (!atkbd->write) |
612 | return -1; | |
613 | ||
614 | switch (type) { | |
615 | ||
616 | case EV_LED: | |
da4249c9 | 617 | atkbd_schedule_event_work(atkbd, ATKBD_LED_EVENT_BIT); |
1da177e4 LT |
618 | return 0; |
619 | ||
1da177e4 | 620 | case EV_REP: |
da4249c9 DT |
621 | if (!atkbd->softrepeat) |
622 | atkbd_schedule_event_work(atkbd, ATKBD_REP_EVENT_BIT); | |
1da177e4 LT |
623 | return 0; |
624 | } | |
625 | ||
626 | return -1; | |
627 | } | |
628 | ||
629 | /* | |
630 | * atkbd_enable() signals that interrupt handler is allowed to | |
631 | * generate input events. | |
632 | */ | |
633 | ||
634 | static inline void atkbd_enable(struct atkbd *atkbd) | |
635 | { | |
636 | serio_pause_rx(atkbd->ps2dev.serio); | |
637 | atkbd->enabled = 1; | |
638 | serio_continue_rx(atkbd->ps2dev.serio); | |
639 | } | |
640 | ||
641 | /* | |
642 | * atkbd_disable() tells input handler that all incoming data except | |
643 | * for ACKs and command response should be dropped. | |
644 | */ | |
645 | ||
646 | static inline void atkbd_disable(struct atkbd *atkbd) | |
647 | { | |
648 | serio_pause_rx(atkbd->ps2dev.serio); | |
649 | atkbd->enabled = 0; | |
650 | serio_continue_rx(atkbd->ps2dev.serio); | |
651 | } | |
652 | ||
653 | /* | |
654 | * atkbd_probe() probes for an AT keyboard on a serio port. | |
655 | */ | |
656 | ||
657 | static int atkbd_probe(struct atkbd *atkbd) | |
658 | { | |
659 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
660 | unsigned char param[2]; | |
661 | ||
662 | /* | |
663 | * Some systems, where the bit-twiddling when testing the io-lines of the | |
664 | * controller may confuse the keyboard need a full reset of the keyboard. On | |
665 | * these systems the BIOS also usually doesn't do it for us. | |
666 | */ | |
667 | ||
668 | if (atkbd_reset) | |
669 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT)) | |
670 | printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys); | |
671 | ||
672 | /* | |
673 | * Then we check the keyboard ID. We should get 0xab83 under normal conditions. | |
674 | * Some keyboards report different values, but the first byte is always 0xab or | |
675 | * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this | |
676 | * should make sure we don't try to set the LEDs on it. | |
677 | */ | |
678 | ||
679 | param[0] = param[1] = 0xa5; /* initialize with invalid values */ | |
680 | if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) { | |
681 | ||
682 | /* | |
683 | * If the get ID command failed, we check if we can at least set the LEDs on | |
684 | * the keyboard. This should work on every keyboard out there. It also turns | |
685 | * the LEDs off, which we want anyway. | |
686 | */ | |
687 | param[0] = 0; | |
688 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) | |
689 | return -1; | |
690 | atkbd->id = 0xabba; | |
691 | return 0; | |
692 | } | |
693 | ||
9807879b | 694 | if (!ps2_is_keyboard_id(param[0])) |
1da177e4 LT |
695 | return -1; |
696 | ||
697 | atkbd->id = (param[0] << 8) | param[1]; | |
698 | ||
699 | if (atkbd->id == 0xaca1 && atkbd->translated) { | |
700 | printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n"); | |
701 | printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n"); | |
702 | return -1; | |
703 | } | |
704 | ||
705 | return 0; | |
706 | } | |
707 | ||
708 | /* | |
709 | * atkbd_select_set checks if a keyboard has a working Set 3 support, and | |
710 | * sets it into that. Unfortunately there are keyboards that can be switched | |
711 | * to Set 3, but don't work well in that (BTC Multimedia ...) | |
712 | */ | |
713 | ||
714 | static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra) | |
715 | { | |
716 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
717 | unsigned char param[2]; | |
718 | ||
719 | atkbd->extra = 0; | |
720 | /* | |
721 | * For known special keyboards we can go ahead and set the correct set. | |
722 | * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and | |
723 | * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards. | |
724 | */ | |
725 | ||
726 | if (atkbd->translated) | |
727 | return 2; | |
728 | ||
729 | if (atkbd->id == 0xaca1) { | |
730 | param[0] = 3; | |
731 | ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET); | |
732 | return 3; | |
733 | } | |
734 | ||
735 | if (allow_extra) { | |
736 | param[0] = 0x71; | |
737 | if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) { | |
738 | atkbd->extra = 1; | |
739 | return 2; | |
740 | } | |
741 | } | |
742 | ||
743 | if (target_set != 3) | |
744 | return 2; | |
745 | ||
746 | if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) { | |
747 | atkbd->id = param[0] << 8 | param[1]; | |
748 | return 2; | |
749 | } | |
750 | ||
751 | param[0] = 3; | |
752 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) | |
753 | return 2; | |
754 | ||
755 | param[0] = 0; | |
756 | if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET)) | |
757 | return 2; | |
758 | ||
759 | if (param[0] != 3) { | |
760 | param[0] = 2; | |
761 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) | |
762 | return 2; | |
763 | } | |
764 | ||
765 | ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR); | |
766 | ||
767 | return 3; | |
768 | } | |
769 | ||
770 | static int atkbd_activate(struct atkbd *atkbd) | |
771 | { | |
772 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
773 | unsigned char param[1]; | |
774 | ||
775 | /* | |
776 | * Set the LEDs to a defined state. | |
777 | */ | |
778 | ||
779 | param[0] = 0; | |
780 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) | |
781 | return -1; | |
782 | ||
783 | /* | |
784 | * Set autorepeat to fastest possible. | |
785 | */ | |
786 | ||
787 | param[0] = 0; | |
788 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP)) | |
789 | return -1; | |
790 | ||
791 | /* | |
792 | * Enable the keyboard to receive keystrokes. | |
793 | */ | |
794 | ||
795 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { | |
796 | printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", | |
797 | ps2dev->serio->phys); | |
798 | return -1; | |
799 | } | |
800 | ||
801 | return 0; | |
802 | } | |
803 | ||
804 | /* | |
805 | * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a | |
806 | * reboot. | |
807 | */ | |
808 | ||
809 | static void atkbd_cleanup(struct serio *serio) | |
810 | { | |
811 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
812 | ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT); | |
813 | } | |
814 | ||
815 | ||
816 | /* | |
817 | * atkbd_disconnect() closes and frees. | |
818 | */ | |
819 | ||
820 | static void atkbd_disconnect(struct serio *serio) | |
821 | { | |
822 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
823 | ||
824 | atkbd_disable(atkbd); | |
825 | ||
826 | /* make sure we don't have a command in flight */ | |
fbd568a3 | 827 | synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */ |
1da177e4 LT |
828 | flush_scheduled_work(); |
829 | ||
86255d9d | 830 | sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); |
3c42f0c3 | 831 | input_unregister_device(atkbd->dev); |
1da177e4 LT |
832 | serio_close(serio); |
833 | serio_set_drvdata(serio, NULL); | |
834 | kfree(atkbd); | |
835 | } | |
836 | ||
837 | ||
838 | /* | |
3c42f0c3 | 839 | * atkbd_set_keycode_table() initializes keyboard's keycode table |
1da177e4 LT |
840 | * according to the selected scancode set |
841 | */ | |
842 | ||
843 | static void atkbd_set_keycode_table(struct atkbd *atkbd) | |
844 | { | |
845 | int i, j; | |
846 | ||
847 | memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); | |
848 | ||
849 | if (atkbd->translated) { | |
850 | for (i = 0; i < 128; i++) { | |
851 | atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]]; | |
852 | atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80]; | |
853 | if (atkbd->scroll) | |
854 | for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) | |
855 | if ((atkbd_unxlate_table[i] | 0x80) == atkbd_scroll_keys[j].set2) | |
856 | atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; | |
857 | } | |
858 | } else if (atkbd->set == 3) { | |
859 | memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); | |
860 | } else { | |
861 | memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); | |
862 | ||
863 | if (atkbd->scroll) | |
864 | for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) | |
865 | atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode; | |
866 | } | |
0ae051a1 DT |
867 | |
868 | atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL)] = KEY_HANGUEL; | |
869 | atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA)] = KEY_HANJA; | |
1da177e4 LT |
870 | } |
871 | ||
872 | /* | |
873 | * atkbd_set_device_attrs() sets up keyboard's input device structure | |
874 | */ | |
875 | ||
876 | static void atkbd_set_device_attrs(struct atkbd *atkbd) | |
877 | { | |
3c42f0c3 | 878 | struct input_dev *input_dev = atkbd->dev; |
1da177e4 LT |
879 | int i; |
880 | ||
3c42f0c3 | 881 | if (atkbd->extra) |
ea08c6fa DT |
882 | snprintf(atkbd->name, sizeof(atkbd->name), |
883 | "AT Set 2 Extra keyboard"); | |
3c42f0c3 | 884 | else |
ea08c6fa DT |
885 | snprintf(atkbd->name, sizeof(atkbd->name), |
886 | "AT %s Set %d keyboard", | |
887 | atkbd->translated ? "Translated" : "Raw", atkbd->set); | |
1da177e4 | 888 | |
ea08c6fa DT |
889 | snprintf(atkbd->phys, sizeof(atkbd->phys), |
890 | "%s/input0", atkbd->ps2dev.serio->phys); | |
1da177e4 | 891 | |
3c42f0c3 DT |
892 | input_dev->name = atkbd->name; |
893 | input_dev->phys = atkbd->phys; | |
894 | input_dev->id.bustype = BUS_I8042; | |
895 | input_dev->id.vendor = 0x0001; | |
896 | input_dev->id.product = atkbd->translated ? 1 : atkbd->set; | |
897 | input_dev->id.version = atkbd->id; | |
898 | input_dev->event = atkbd_event; | |
469ba4df | 899 | input_dev->dev.parent = &atkbd->ps2dev.serio->dev; |
1da177e4 | 900 | |
b356872f DT |
901 | input_set_drvdata(input_dev, atkbd); |
902 | ||
3c42f0c3 | 903 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC); |
1da177e4 LT |
904 | |
905 | if (atkbd->write) { | |
3c42f0c3 DT |
906 | input_dev->evbit[0] |= BIT(EV_LED); |
907 | input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL); | |
1da177e4 LT |
908 | } |
909 | ||
910 | if (atkbd->extra) | |
3c42f0c3 | 911 | input_dev->ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | |
1da177e4 LT |
912 | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC); |
913 | ||
914 | if (!atkbd->softrepeat) { | |
3c42f0c3 DT |
915 | input_dev->rep[REP_DELAY] = 250; |
916 | input_dev->rep[REP_PERIOD] = 33; | |
1da177e4 LT |
917 | } |
918 | ||
3c42f0c3 | 919 | input_dev->mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN); |
1da177e4 LT |
920 | |
921 | if (atkbd->scroll) { | |
3c42f0c3 DT |
922 | input_dev->evbit[0] |= BIT(EV_REL); |
923 | input_dev->relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL); | |
924 | set_bit(BTN_MIDDLE, input_dev->keybit); | |
1da177e4 LT |
925 | } |
926 | ||
3c42f0c3 DT |
927 | input_dev->keycode = atkbd->keycode; |
928 | input_dev->keycodesize = sizeof(unsigned char); | |
929 | input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); | |
1da177e4 LT |
930 | |
931 | for (i = 0; i < 512; i++) | |
932 | if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) | |
3c42f0c3 | 933 | set_bit(atkbd->keycode[i], input_dev->keybit); |
1da177e4 LT |
934 | } |
935 | ||
936 | /* | |
937 | * atkbd_connect() is called when the serio module finds an interface | |
938 | * that isn't handled yet by an appropriate device driver. We check if | |
939 | * there is an AT keyboard out there and if yes, we register ourselves | |
940 | * to the input module. | |
941 | */ | |
942 | ||
943 | static int atkbd_connect(struct serio *serio, struct serio_driver *drv) | |
944 | { | |
945 | struct atkbd *atkbd; | |
3c42f0c3 DT |
946 | struct input_dev *dev; |
947 | int err = -ENOMEM; | |
1da177e4 | 948 | |
3c42f0c3 DT |
949 | atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); |
950 | dev = input_allocate_device(); | |
951 | if (!atkbd || !dev) | |
2b03b60e | 952 | goto fail1; |
1da177e4 | 953 | |
3c42f0c3 | 954 | atkbd->dev = dev; |
1da177e4 | 955 | ps2_init(&atkbd->ps2dev, serio); |
da4249c9 | 956 | INIT_DELAYED_WORK(&atkbd->event_work, atkbd_event_work); |
33d3f07a | 957 | mutex_init(&atkbd->event_mutex); |
1da177e4 LT |
958 | |
959 | switch (serio->id.type) { | |
960 | ||
961 | case SERIO_8042_XL: | |
962 | atkbd->translated = 1; | |
963 | case SERIO_8042: | |
964 | if (serio->write) | |
965 | atkbd->write = 1; | |
966 | break; | |
967 | } | |
968 | ||
969 | atkbd->softraw = atkbd_softraw; | |
970 | atkbd->softrepeat = atkbd_softrepeat; | |
971 | atkbd->scroll = atkbd_scroll; | |
972 | ||
1da177e4 LT |
973 | if (atkbd->softrepeat) |
974 | atkbd->softraw = 1; | |
975 | ||
976 | serio_set_drvdata(serio, atkbd); | |
977 | ||
978 | err = serio_open(serio, drv); | |
3c42f0c3 | 979 | if (err) |
2b03b60e | 980 | goto fail2; |
1da177e4 LT |
981 | |
982 | if (atkbd->write) { | |
983 | ||
984 | if (atkbd_probe(atkbd)) { | |
3c42f0c3 | 985 | err = -ENODEV; |
2b03b60e | 986 | goto fail3; |
1da177e4 LT |
987 | } |
988 | ||
989 | atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); | |
990 | atkbd_activate(atkbd); | |
991 | ||
992 | } else { | |
993 | atkbd->set = 2; | |
994 | atkbd->id = 0xab00; | |
995 | } | |
996 | ||
1da177e4 LT |
997 | atkbd_set_keycode_table(atkbd); |
998 | atkbd_set_device_attrs(atkbd); | |
999 | ||
2b03b60e DT |
1000 | err = sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); |
1001 | if (err) | |
1002 | goto fail3; | |
1da177e4 LT |
1003 | |
1004 | atkbd_enable(atkbd); | |
1005 | ||
2b03b60e DT |
1006 | err = input_register_device(atkbd->dev); |
1007 | if (err) | |
1008 | goto fail4; | |
1da177e4 LT |
1009 | |
1010 | return 0; | |
3c42f0c3 | 1011 | |
2b03b60e DT |
1012 | fail4: sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); |
1013 | fail3: serio_close(serio); | |
1014 | fail2: serio_set_drvdata(serio, NULL); | |
1015 | fail1: input_free_device(dev); | |
3c42f0c3 DT |
1016 | kfree(atkbd); |
1017 | return err; | |
1da177e4 LT |
1018 | } |
1019 | ||
1020 | /* | |
1021 | * atkbd_reconnect() tries to restore keyboard into a sane state and is | |
1022 | * most likely called on resume. | |
1023 | */ | |
1024 | ||
1025 | static int atkbd_reconnect(struct serio *serio) | |
1026 | { | |
1027 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
1028 | struct serio_driver *drv = serio->drv; | |
1da177e4 LT |
1029 | |
1030 | if (!atkbd || !drv) { | |
1031 | printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); | |
1032 | return -1; | |
1033 | } | |
1034 | ||
1035 | atkbd_disable(atkbd); | |
1036 | ||
1037 | if (atkbd->write) { | |
1da177e4 LT |
1038 | if (atkbd_probe(atkbd)) |
1039 | return -1; | |
1040 | if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) | |
1041 | return -1; | |
1042 | ||
1043 | atkbd_activate(atkbd); | |
1044 | ||
3d0f0fa0 DT |
1045 | /* |
1046 | * Restore repeat rate and LEDs (that were reset by atkbd_activate) | |
1047 | * to pre-resume state | |
1048 | */ | |
1049 | if (!atkbd->softrepeat) | |
1050 | atkbd_set_repeat_rate(atkbd); | |
1051 | atkbd_set_leds(atkbd); | |
1da177e4 LT |
1052 | } |
1053 | ||
1054 | atkbd_enable(atkbd); | |
1055 | ||
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | static struct serio_device_id atkbd_serio_ids[] = { | |
1060 | { | |
1061 | .type = SERIO_8042, | |
1062 | .proto = SERIO_ANY, | |
1063 | .id = SERIO_ANY, | |
1064 | .extra = SERIO_ANY, | |
1065 | }, | |
1066 | { | |
1067 | .type = SERIO_8042_XL, | |
1068 | .proto = SERIO_ANY, | |
1069 | .id = SERIO_ANY, | |
1070 | .extra = SERIO_ANY, | |
1071 | }, | |
1072 | { | |
1073 | .type = SERIO_RS232, | |
1074 | .proto = SERIO_PS2SER, | |
1075 | .id = SERIO_ANY, | |
1076 | .extra = SERIO_ANY, | |
1077 | }, | |
1078 | { 0 } | |
1079 | }; | |
1080 | ||
1081 | MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); | |
1082 | ||
1083 | static struct serio_driver atkbd_drv = { | |
1084 | .driver = { | |
1085 | .name = "atkbd", | |
1086 | }, | |
1087 | .description = DRIVER_DESC, | |
1088 | .id_table = atkbd_serio_ids, | |
1089 | .interrupt = atkbd_interrupt, | |
1090 | .connect = atkbd_connect, | |
1091 | .reconnect = atkbd_reconnect, | |
1092 | .disconnect = atkbd_disconnect, | |
1093 | .cleanup = atkbd_cleanup, | |
1094 | }; | |
1095 | ||
1096 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, | |
1097 | ssize_t (*handler)(struct atkbd *, char *)) | |
1098 | { | |
1099 | struct serio *serio = to_serio_port(dev); | |
1100 | int retval; | |
1101 | ||
1102 | retval = serio_pin_driver(serio); | |
1103 | if (retval) | |
1104 | return retval; | |
1105 | ||
1106 | if (serio->drv != &atkbd_drv) { | |
1107 | retval = -ENODEV; | |
1108 | goto out; | |
1109 | } | |
1110 | ||
1111 | retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); | |
1112 | ||
1113 | out: | |
1114 | serio_unpin_driver(serio); | |
1115 | return retval; | |
1116 | } | |
1117 | ||
1118 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, | |
1119 | ssize_t (*handler)(struct atkbd *, const char *, size_t)) | |
1120 | { | |
1121 | struct serio *serio = to_serio_port(dev); | |
1122 | struct atkbd *atkbd; | |
1123 | int retval; | |
1124 | ||
1125 | retval = serio_pin_driver(serio); | |
1126 | if (retval) | |
1127 | return retval; | |
1128 | ||
1129 | if (serio->drv != &atkbd_drv) { | |
1130 | retval = -ENODEV; | |
1131 | goto out; | |
1132 | } | |
1133 | ||
1134 | atkbd = serio_get_drvdata(serio); | |
1135 | atkbd_disable(atkbd); | |
1136 | retval = handler(atkbd, buf, count); | |
1137 | atkbd_enable(atkbd); | |
1138 | ||
1139 | out: | |
1140 | serio_unpin_driver(serio); | |
1141 | return retval; | |
1142 | } | |
1143 | ||
1144 | static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) | |
1145 | { | |
1146 | return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); | |
1147 | } | |
1148 | ||
1149 | static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) | |
1150 | { | |
2b03b60e | 1151 | struct input_dev *old_dev, *new_dev; |
1da177e4 LT |
1152 | unsigned long value; |
1153 | char *rest; | |
2b03b60e DT |
1154 | int err; |
1155 | unsigned char old_extra, old_set; | |
1da177e4 LT |
1156 | |
1157 | if (!atkbd->write) | |
1158 | return -EIO; | |
1159 | ||
1160 | value = simple_strtoul(buf, &rest, 10); | |
1161 | if (*rest || value > 1) | |
1162 | return -EINVAL; | |
1163 | ||
1164 | if (atkbd->extra != value) { | |
3c42f0c3 DT |
1165 | /* |
1166 | * Since device's properties will change we need to | |
2b03b60e DT |
1167 | * unregister old device. But allocate and register |
1168 | * new one first to make sure we have it. | |
3c42f0c3 | 1169 | */ |
2b03b60e DT |
1170 | old_dev = atkbd->dev; |
1171 | old_extra = atkbd->extra; | |
1172 | old_set = atkbd->set; | |
1173 | ||
1174 | new_dev = input_allocate_device(); | |
1175 | if (!new_dev) | |
3c42f0c3 | 1176 | return -ENOMEM; |
2b03b60e | 1177 | |
3c42f0c3 | 1178 | atkbd->dev = new_dev; |
1da177e4 LT |
1179 | atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); |
1180 | atkbd_activate(atkbd); | |
2b03b60e | 1181 | atkbd_set_keycode_table(atkbd); |
1da177e4 | 1182 | atkbd_set_device_attrs(atkbd); |
2b03b60e DT |
1183 | |
1184 | err = input_register_device(atkbd->dev); | |
1185 | if (err) { | |
1186 | input_free_device(new_dev); | |
1187 | ||
1188 | atkbd->dev = old_dev; | |
1189 | atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); | |
1190 | atkbd_set_keycode_table(atkbd); | |
1191 | atkbd_set_device_attrs(atkbd); | |
1192 | ||
1193 | return err; | |
1194 | } | |
1195 | input_unregister_device(old_dev); | |
1196 | ||
1da177e4 LT |
1197 | } |
1198 | return count; | |
1199 | } | |
1200 | ||
1201 | static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) | |
1202 | { | |
1203 | return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); | |
1204 | } | |
1205 | ||
1206 | static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) | |
1207 | { | |
2b03b60e | 1208 | struct input_dev *old_dev, *new_dev; |
1da177e4 LT |
1209 | unsigned long value; |
1210 | char *rest; | |
2b03b60e DT |
1211 | int err; |
1212 | unsigned char old_scroll; | |
1da177e4 LT |
1213 | |
1214 | value = simple_strtoul(buf, &rest, 10); | |
1215 | if (*rest || value > 1) | |
1216 | return -EINVAL; | |
1217 | ||
1218 | if (atkbd->scroll != value) { | |
2b03b60e DT |
1219 | old_dev = atkbd->dev; |
1220 | old_scroll = atkbd->scroll; | |
1221 | ||
1222 | new_dev = input_allocate_device(); | |
1223 | if (!new_dev) | |
3c42f0c3 | 1224 | return -ENOMEM; |
2b03b60e | 1225 | |
3c42f0c3 | 1226 | atkbd->dev = new_dev; |
1da177e4 LT |
1227 | atkbd->scroll = value; |
1228 | atkbd_set_keycode_table(atkbd); | |
1229 | atkbd_set_device_attrs(atkbd); | |
2b03b60e DT |
1230 | |
1231 | err = input_register_device(atkbd->dev); | |
1232 | if (err) { | |
1233 | input_free_device(new_dev); | |
1234 | ||
1235 | atkbd->scroll = old_scroll; | |
1236 | atkbd->dev = old_dev; | |
1237 | atkbd_set_keycode_table(atkbd); | |
1238 | atkbd_set_device_attrs(atkbd); | |
1239 | ||
1240 | return err; | |
1241 | } | |
1242 | input_unregister_device(old_dev); | |
1da177e4 LT |
1243 | } |
1244 | return count; | |
1245 | } | |
1246 | ||
1247 | static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) | |
1248 | { | |
1249 | return sprintf(buf, "%d\n", atkbd->set); | |
1250 | } | |
1251 | ||
1252 | static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) | |
1253 | { | |
2b03b60e | 1254 | struct input_dev *old_dev, *new_dev; |
1da177e4 LT |
1255 | unsigned long value; |
1256 | char *rest; | |
2b03b60e DT |
1257 | int err; |
1258 | unsigned char old_set, old_extra; | |
1da177e4 LT |
1259 | |
1260 | if (!atkbd->write) | |
1261 | return -EIO; | |
1262 | ||
1263 | value = simple_strtoul(buf, &rest, 10); | |
1264 | if (*rest || (value != 2 && value != 3)) | |
1265 | return -EINVAL; | |
1266 | ||
1267 | if (atkbd->set != value) { | |
2b03b60e DT |
1268 | old_dev = atkbd->dev; |
1269 | old_extra = atkbd->extra; | |
1270 | old_set = atkbd->set; | |
1271 | ||
1272 | new_dev = input_allocate_device(); | |
1273 | if (!new_dev) | |
3c42f0c3 | 1274 | return -ENOMEM; |
2b03b60e | 1275 | |
3c42f0c3 | 1276 | atkbd->dev = new_dev; |
1da177e4 LT |
1277 | atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); |
1278 | atkbd_activate(atkbd); | |
1279 | atkbd_set_keycode_table(atkbd); | |
1280 | atkbd_set_device_attrs(atkbd); | |
2b03b60e DT |
1281 | |
1282 | err = input_register_device(atkbd->dev); | |
1283 | if (err) { | |
1284 | input_free_device(new_dev); | |
1285 | ||
1286 | atkbd->dev = old_dev; | |
1287 | atkbd->set = atkbd_select_set(atkbd, old_set, old_extra); | |
1288 | atkbd_set_keycode_table(atkbd); | |
1289 | atkbd_set_device_attrs(atkbd); | |
1290 | ||
1291 | return err; | |
1292 | } | |
1293 | input_unregister_device(old_dev); | |
1da177e4 LT |
1294 | } |
1295 | return count; | |
1296 | } | |
1297 | ||
1298 | static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) | |
1299 | { | |
1300 | return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); | |
1301 | } | |
1302 | ||
1303 | static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) | |
1304 | { | |
2b03b60e | 1305 | struct input_dev *old_dev, *new_dev; |
1da177e4 LT |
1306 | unsigned long value; |
1307 | char *rest; | |
2b03b60e DT |
1308 | int err; |
1309 | unsigned char old_softrepeat, old_softraw; | |
1da177e4 LT |
1310 | |
1311 | if (!atkbd->write) | |
1312 | return -EIO; | |
1313 | ||
1314 | value = simple_strtoul(buf, &rest, 10); | |
1315 | if (*rest || value > 1) | |
1316 | return -EINVAL; | |
1317 | ||
1318 | if (atkbd->softrepeat != value) { | |
2b03b60e DT |
1319 | old_dev = atkbd->dev; |
1320 | old_softrepeat = atkbd->softrepeat; | |
1321 | old_softraw = atkbd->softraw; | |
1322 | ||
1323 | new_dev = input_allocate_device(); | |
1324 | if (!new_dev) | |
3c42f0c3 | 1325 | return -ENOMEM; |
2b03b60e | 1326 | |
3c42f0c3 | 1327 | atkbd->dev = new_dev; |
1da177e4 LT |
1328 | atkbd->softrepeat = value; |
1329 | if (atkbd->softrepeat) | |
1330 | atkbd->softraw = 1; | |
1331 | atkbd_set_device_attrs(atkbd); | |
2b03b60e DT |
1332 | |
1333 | err = input_register_device(atkbd->dev); | |
1334 | if (err) { | |
1335 | input_free_device(new_dev); | |
1336 | ||
1337 | atkbd->dev = old_dev; | |
1338 | atkbd->softrepeat = old_softrepeat; | |
1339 | atkbd->softraw = old_softraw; | |
1340 | atkbd_set_device_attrs(atkbd); | |
1341 | ||
1342 | return err; | |
1343 | } | |
1344 | input_unregister_device(old_dev); | |
1da177e4 | 1345 | } |
1da177e4 LT |
1346 | return count; |
1347 | } | |
1348 | ||
1349 | ||
1350 | static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) | |
1351 | { | |
1352 | return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); | |
1353 | } | |
1354 | ||
1355 | static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) | |
1356 | { | |
2b03b60e | 1357 | struct input_dev *old_dev, *new_dev; |
1da177e4 LT |
1358 | unsigned long value; |
1359 | char *rest; | |
2b03b60e DT |
1360 | int err; |
1361 | unsigned char old_softraw; | |
1da177e4 LT |
1362 | |
1363 | value = simple_strtoul(buf, &rest, 10); | |
1364 | if (*rest || value > 1) | |
1365 | return -EINVAL; | |
1366 | ||
1367 | if (atkbd->softraw != value) { | |
2b03b60e DT |
1368 | old_dev = atkbd->dev; |
1369 | old_softraw = atkbd->softraw; | |
1370 | ||
1371 | new_dev = input_allocate_device(); | |
1372 | if (!new_dev) | |
3c42f0c3 | 1373 | return -ENOMEM; |
2b03b60e | 1374 | |
3c42f0c3 | 1375 | atkbd->dev = new_dev; |
1da177e4 LT |
1376 | atkbd->softraw = value; |
1377 | atkbd_set_device_attrs(atkbd); | |
2b03b60e DT |
1378 | |
1379 | err = input_register_device(atkbd->dev); | |
1380 | if (err) { | |
1381 | input_free_device(new_dev); | |
1382 | ||
1383 | atkbd->dev = old_dev; | |
1384 | atkbd->softraw = old_softraw; | |
1385 | atkbd_set_device_attrs(atkbd); | |
1386 | ||
1387 | return err; | |
1388 | } | |
1389 | input_unregister_device(old_dev); | |
1da177e4 LT |
1390 | } |
1391 | return count; | |
1392 | } | |
1393 | ||
86255d9d DT |
1394 | static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) |
1395 | { | |
1396 | return sprintf(buf, "%lu\n", atkbd->err_count); | |
1397 | } | |
1398 | ||
1da177e4 LT |
1399 | |
1400 | static int __init atkbd_init(void) | |
1401 | { | |
153a9df0 | 1402 | return serio_register_driver(&atkbd_drv); |
1da177e4 LT |
1403 | } |
1404 | ||
1405 | static void __exit atkbd_exit(void) | |
1406 | { | |
1407 | serio_unregister_driver(&atkbd_drv); | |
1408 | } | |
1409 | ||
1410 | module_init(atkbd_init); | |
1411 | module_exit(atkbd_exit); |