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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 | ||
66 | __obsolete_setup("atkbd_set="); | |
67 | __obsolete_setup("atkbd_reset"); | |
68 | __obsolete_setup("atkbd_softrepeat="); | |
69 | ||
70 | /* | |
71 | * Scancode to keycode tables. These are just the default setting, and | |
72 | * are loadable via an userland utility. | |
73 | */ | |
74 | ||
75 | static unsigned char atkbd_set2_keycode[512] = { | |
76 | ||
77 | #ifdef CONFIG_KEYBOARD_ATKBD_HP_KEYCODES | |
78 | ||
79 | /* XXX: need a more general approach */ | |
80 | ||
81 | #include "hpps2atkbd.h" /* include the keyboard scancodes */ | |
82 | ||
83 | #else | |
84 | 0, 67, 65, 63, 61, 59, 60, 88, 0, 68, 66, 64, 62, 15, 41,117, | |
85 | 0, 56, 42, 93, 29, 16, 2, 0, 0, 0, 44, 31, 30, 17, 3, 0, | |
86 | 0, 46, 45, 32, 18, 5, 4, 95, 0, 57, 47, 33, 20, 19, 6,183, | |
87 | 0, 49, 48, 35, 34, 21, 7,184, 0, 0, 50, 36, 22, 8, 9,185, | |
88 | 0, 51, 37, 23, 24, 11, 10, 0, 0, 52, 53, 38, 39, 25, 12, 0, | |
89 | 0, 89, 40, 0, 26, 13, 0, 0, 58, 54, 28, 27, 0, 43, 0, 85, | |
90 | 0, 86, 91, 90, 92, 0, 14, 94, 0, 79,124, 75, 71,121, 0, 0, | |
91 | 82, 83, 80, 76, 77, 72, 1, 69, 87, 78, 81, 74, 55, 73, 70, 99, | |
92 | ||
93 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
94 | 217,100,255, 0, 97,165, 0, 0,156, 0, 0, 0, 0, 0, 0,125, | |
95 | 173,114, 0,113, 0, 0, 0,126,128, 0, 0,140, 0, 0, 0,127, | |
96 | 159, 0,115, 0,164, 0, 0,116,158, 0,150,166, 0, 0, 0,142, | |
97 | 157, 0, 0, 0, 0, 0, 0, 0,155, 0, 98, 0, 0,163, 0, 0, | |
98 | 226, 0, 0, 0, 0, 0, 0, 0, 0,255, 96, 0, 0, 0,143, 0, | |
99 | 0, 0, 0, 0, 0, 0, 0, 0, 0,107, 0,105,102, 0, 0,112, | |
100 | 110,111,108,112,106,103, 0,119, 0,118,109, 0, 99,104,119, 0, | |
101 | ||
102 | 0, 0, 0, 65, 99, | |
103 | #endif | |
104 | }; | |
105 | ||
106 | static unsigned char atkbd_set3_keycode[512] = { | |
107 | ||
108 | 0, 0, 0, 0, 0, 0, 0, 59, 1,138,128,129,130, 15, 41, 60, | |
109 | 131, 29, 42, 86, 58, 16, 2, 61,133, 56, 44, 31, 30, 17, 3, 62, | |
110 | 134, 46, 45, 32, 18, 5, 4, 63,135, 57, 47, 33, 20, 19, 6, 64, | |
111 | 136, 49, 48, 35, 34, 21, 7, 65,137,100, 50, 36, 22, 8, 9, 66, | |
112 | 125, 51, 37, 23, 24, 11, 10, 67,126, 52, 53, 38, 39, 25, 12, 68, | |
113 | 113,114, 40, 43, 26, 13, 87, 99, 97, 54, 28, 27, 43, 43, 88, 70, | |
114 | 108,105,119,103,111,107, 14,110, 0, 79,106, 75, 71,109,102,104, | |
115 | 82, 83, 80, 76, 77, 72, 69, 98, 0, 96, 81, 0, 78, 73, 55,183, | |
116 | ||
117 | 184,185,186,187, 74, 94, 92, 93, 0, 0, 0,125,126,127,112, 0, | |
118 | 0,139,150,163,165,115,152,150,166,140,160,154,113,114,167,168, | |
119 | 148,149,147,140 | |
120 | }; | |
121 | ||
122 | static unsigned char atkbd_unxlate_table[128] = { | |
123 | 0,118, 22, 30, 38, 37, 46, 54, 61, 62, 70, 69, 78, 85,102, 13, | |
124 | 21, 29, 36, 45, 44, 53, 60, 67, 68, 77, 84, 91, 90, 20, 28, 27, | |
125 | 35, 43, 52, 51, 59, 66, 75, 76, 82, 14, 18, 93, 26, 34, 33, 42, | |
126 | 50, 49, 58, 65, 73, 74, 89,124, 17, 41, 88, 5, 6, 4, 12, 3, | |
127 | 11, 2, 10, 1, 9,119,126,108,117,125,123,107,115,116,121,105, | |
128 | 114,122,112,113,127, 96, 97,120, 7, 15, 23, 31, 39, 47, 55, 63, | |
129 | 71, 79, 86, 94, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 87,111, | |
130 | 19, 25, 57, 81, 83, 92, 95, 98, 99,100,101,103,104,106,109,110 | |
131 | }; | |
132 | ||
133 | #define ATKBD_CMD_SETLEDS 0x10ed | |
134 | #define ATKBD_CMD_GSCANSET 0x11f0 | |
135 | #define ATKBD_CMD_SSCANSET 0x10f0 | |
136 | #define ATKBD_CMD_GETID 0x02f2 | |
137 | #define ATKBD_CMD_SETREP 0x10f3 | |
138 | #define ATKBD_CMD_ENABLE 0x00f4 | |
139 | #define ATKBD_CMD_RESET_DIS 0x00f5 | |
140 | #define ATKBD_CMD_SETALL_MBR 0x00fa | |
141 | #define ATKBD_CMD_RESET_BAT 0x02ff | |
142 | #define ATKBD_CMD_RESEND 0x00fe | |
143 | #define ATKBD_CMD_EX_ENABLE 0x10ea | |
144 | #define ATKBD_CMD_EX_SETLEDS 0x20eb | |
145 | #define ATKBD_CMD_OK_GETID 0x02e8 | |
146 | ||
147 | #define ATKBD_RET_ACK 0xfa | |
148 | #define ATKBD_RET_NAK 0xfe | |
149 | #define ATKBD_RET_BAT 0xaa | |
150 | #define ATKBD_RET_EMUL0 0xe0 | |
151 | #define ATKBD_RET_EMUL1 0xe1 | |
152 | #define ATKBD_RET_RELEASE 0xf0 | |
0ae051a1 DT |
153 | #define ATKBD_RET_HANJA 0xf1 |
154 | #define ATKBD_RET_HANGEUL 0xf2 | |
1da177e4 LT |
155 | #define ATKBD_RET_ERR 0xff |
156 | ||
157 | #define ATKBD_KEY_UNKNOWN 0 | |
158 | #define ATKBD_KEY_NULL 255 | |
159 | ||
160 | #define ATKBD_SCR_1 254 | |
161 | #define ATKBD_SCR_2 253 | |
162 | #define ATKBD_SCR_4 252 | |
163 | #define ATKBD_SCR_8 251 | |
164 | #define ATKBD_SCR_CLICK 250 | |
165 | #define ATKBD_SCR_LEFT 249 | |
166 | #define ATKBD_SCR_RIGHT 248 | |
167 | ||
168 | #define ATKBD_SPECIAL 248 | |
169 | ||
0d4c8597 DT |
170 | #define ATKBD_LED_EVENT_BIT 0 |
171 | #define ATKBD_REP_EVENT_BIT 1 | |
172 | ||
0ae051a1 DT |
173 | #define ATKBD_XL_ERR 0x01 |
174 | #define ATKBD_XL_BAT 0x02 | |
175 | #define ATKBD_XL_ACK 0x04 | |
176 | #define ATKBD_XL_NAK 0x08 | |
177 | #define ATKBD_XL_HANGEUL 0x10 | |
178 | #define ATKBD_XL_HANJA 0x20 | |
179 | ||
1da177e4 LT |
180 | static struct { |
181 | unsigned char keycode; | |
182 | unsigned char set2; | |
183 | } atkbd_scroll_keys[] = { | |
184 | { ATKBD_SCR_1, 0xc5 }, | |
5212dd58 VP |
185 | { ATKBD_SCR_2, 0x9d }, |
186 | { ATKBD_SCR_4, 0xa4 }, | |
187 | { ATKBD_SCR_8, 0x9b }, | |
1da177e4 LT |
188 | { ATKBD_SCR_CLICK, 0xe0 }, |
189 | { ATKBD_SCR_LEFT, 0xcb }, | |
190 | { ATKBD_SCR_RIGHT, 0xd2 }, | |
191 | }; | |
192 | ||
193 | /* | |
194 | * The atkbd control structure | |
195 | */ | |
196 | ||
197 | struct atkbd { | |
198 | ||
3c42f0c3 DT |
199 | struct ps2dev ps2dev; |
200 | struct input_dev *dev; | |
1da177e4 LT |
201 | |
202 | /* Written only during init */ | |
203 | char name[64]; | |
204 | char phys[32]; | |
1da177e4 LT |
205 | |
206 | unsigned short id; | |
207 | unsigned char keycode[512]; | |
208 | unsigned char set; | |
209 | unsigned char translated; | |
210 | unsigned char extra; | |
211 | unsigned char write; | |
212 | unsigned char softrepeat; | |
213 | unsigned char softraw; | |
214 | unsigned char scroll; | |
215 | unsigned char enabled; | |
216 | ||
217 | /* Accessed only from interrupt */ | |
218 | unsigned char emul; | |
219 | unsigned char resend; | |
220 | unsigned char release; | |
0ae051a1 | 221 | unsigned long xl_bit; |
1da177e4 LT |
222 | unsigned int last; |
223 | unsigned long time; | |
0d4c8597 DT |
224 | |
225 | struct work_struct event_work; | |
33d3f07a | 226 | struct mutex event_mutex; |
0d4c8597 | 227 | unsigned long event_mask; |
1da177e4 LT |
228 | }; |
229 | ||
230 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, | |
231 | ssize_t (*handler)(struct atkbd *, char *)); | |
232 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, | |
233 | ssize_t (*handler)(struct atkbd *, const char *, size_t)); | |
234 | #define ATKBD_DEFINE_ATTR(_name) \ | |
235 | static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ | |
236 | static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ | |
e404e274 | 237 | static ssize_t atkbd_do_show_##_name(struct device *d, struct device_attribute *attr, char *b) \ |
1da177e4 LT |
238 | { \ |
239 | return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ | |
240 | } \ | |
e404e274 | 241 | static ssize_t atkbd_do_set_##_name(struct device *d, 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 | ||
0ae051a1 DT |
254 | static const unsigned int xl_table[] = { |
255 | ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, | |
256 | ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, | |
257 | }; | |
1da177e4 | 258 | |
0ae051a1 DT |
259 | /* |
260 | * Checks if we should mangle the scancode to extract 'release' bit | |
261 | * in translated mode. | |
262 | */ | |
263 | static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code) | |
1da177e4 | 264 | { |
0ae051a1 DT |
265 | int i; |
266 | ||
267 | if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) | |
268 | return 0; | |
269 | ||
270 | for (i = 0; i < ARRAY_SIZE(xl_table); i++) | |
271 | if (code == xl_table[i]) | |
272 | return test_bit(i, &xl_bit); | |
273 | ||
274 | return 1; | |
275 | } | |
276 | ||
277 | /* | |
278 | * Calculates new value of xl_bit so the driver can distinguish | |
279 | * between make/break pair of scancodes for select keys and PS/2 | |
280 | * protocol responses. | |
281 | */ | |
282 | static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) | |
283 | { | |
284 | int i; | |
285 | ||
286 | for (i = 0; i < ARRAY_SIZE(xl_table); i++) { | |
287 | if (!((code ^ xl_table[i]) & 0x7f)) { | |
288 | if (code & 0x80) | |
289 | __clear_bit(i, &atkbd->xl_bit); | |
290 | else | |
291 | __set_bit(i, &atkbd->xl_bit); | |
292 | break; | |
293 | } | |
294 | } | |
295 | } | |
296 | ||
297 | /* | |
298 | * Encode the scancode, 0xe0 prefix, and high bit into a single integer, | |
299 | * keeping kernel 2.4 compatibility for set 2 | |
300 | */ | |
301 | static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) | |
302 | { | |
303 | if (atkbd->set == 3) { | |
304 | if (atkbd->emul == 1) | |
305 | code |= 0x100; | |
306 | } else { | |
307 | code = (code & 0x7f) | ((code & 0x80) << 1); | |
308 | if (atkbd->emul == 1) | |
309 | code |= 0x80; | |
310 | } | |
311 | ||
312 | return code; | |
1da177e4 LT |
313 | } |
314 | ||
315 | /* | |
316 | * atkbd_interrupt(). Here takes place processing of data received from | |
317 | * the keyboard into events. | |
318 | */ | |
319 | ||
320 | static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, | |
321 | unsigned int flags, struct pt_regs *regs) | |
322 | { | |
323 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
0ae051a1 | 324 | struct input_dev *dev = atkbd->dev; |
1da177e4 | 325 | unsigned int code = data; |
0ae051a1 | 326 | int scroll = 0, hscroll = 0, click = -1, add_release_event = 0; |
1da177e4 | 327 | int value; |
0ae051a1 | 328 | unsigned char keycode; |
1da177e4 LT |
329 | |
330 | #ifdef ATKBD_DEBUG | |
331 | printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); | |
332 | #endif | |
333 | ||
334 | #if !defined(__i386__) && !defined (__x86_64__) | |
335 | if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) { | |
336 | printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags); | |
337 | serio_write(serio, ATKBD_CMD_RESEND); | |
338 | atkbd->resend = 1; | |
339 | goto out; | |
340 | } | |
341 | ||
342 | if (!flags && data == ATKBD_RET_ACK) | |
343 | atkbd->resend = 0; | |
344 | #endif | |
345 | ||
346 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK)) | |
347 | if (ps2_handle_ack(&atkbd->ps2dev, data)) | |
348 | goto out; | |
349 | ||
350 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD)) | |
351 | if (ps2_handle_response(&atkbd->ps2dev, data)) | |
352 | goto out; | |
353 | ||
354 | if (!atkbd->enabled) | |
355 | goto out; | |
356 | ||
0ae051a1 | 357 | input_event(dev, EV_MSC, MSC_RAW, code); |
1da177e4 LT |
358 | |
359 | if (atkbd->translated) { | |
360 | ||
0ae051a1 | 361 | if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { |
1da177e4 LT |
362 | atkbd->release = code >> 7; |
363 | code &= 0x7f; | |
364 | } | |
365 | ||
0ae051a1 DT |
366 | if (!atkbd->emul) |
367 | atkbd_calculate_xl_bit(atkbd, data); | |
1da177e4 LT |
368 | } |
369 | ||
370 | switch (code) { | |
371 | case ATKBD_RET_BAT: | |
372 | atkbd->enabled = 0; | |
dbc26344 | 373 | serio_reconnect(atkbd->ps2dev.serio); |
1da177e4 LT |
374 | goto out; |
375 | case ATKBD_RET_EMUL0: | |
376 | atkbd->emul = 1; | |
377 | goto out; | |
378 | case ATKBD_RET_EMUL1: | |
379 | atkbd->emul = 2; | |
380 | goto out; | |
381 | case ATKBD_RET_RELEASE: | |
382 | atkbd->release = 1; | |
383 | goto out; | |
0ae051a1 DT |
384 | case ATKBD_RET_ACK: |
385 | case ATKBD_RET_NAK: | |
386 | printk(KERN_WARNING "atkbd.c: Spurious %s on %s. " | |
387 | "Some program might be trying access hardware directly.\n", | |
388 | data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); | |
1da177e4 | 389 | goto out; |
0ae051a1 | 390 | case ATKBD_RET_HANGEUL: |
1da177e4 | 391 | case ATKBD_RET_HANJA: |
0ae051a1 DT |
392 | /* |
393 | * These keys do not report release and thus need to be | |
394 | * flagged properly | |
395 | */ | |
396 | add_release_event = 1; | |
397 | break; | |
1da177e4 LT |
398 | case ATKBD_RET_ERR: |
399 | printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); | |
400 | goto out; | |
401 | } | |
402 | ||
0ae051a1 DT |
403 | code = atkbd_compat_scancode(atkbd, code); |
404 | ||
405 | if (atkbd->emul && --atkbd->emul) | |
406 | goto out; | |
407 | ||
408 | keycode = atkbd->keycode[code]; | |
1da177e4 | 409 | |
0ae051a1 DT |
410 | if (keycode != ATKBD_KEY_NULL) |
411 | input_event(dev, EV_MSC, MSC_SCAN, code); | |
1da177e4 | 412 | |
0ae051a1 | 413 | switch (keycode) { |
1da177e4 LT |
414 | case ATKBD_KEY_NULL: |
415 | break; | |
416 | case ATKBD_KEY_UNKNOWN: | |
0ae051a1 DT |
417 | printk(KERN_WARNING |
418 | "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n", | |
419 | atkbd->release ? "released" : "pressed", | |
420 | atkbd->translated ? "translated" : "raw", | |
421 | atkbd->set, code, serio->phys); | |
422 | printk(KERN_WARNING | |
423 | "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n", | |
424 | code & 0x80 ? "e0" : "", code & 0x7f); | |
425 | input_sync(dev); | |
1da177e4 LT |
426 | break; |
427 | case ATKBD_SCR_1: | |
428 | scroll = 1 - atkbd->release * 2; | |
429 | break; | |
430 | case ATKBD_SCR_2: | |
431 | scroll = 2 - atkbd->release * 4; | |
432 | break; | |
433 | case ATKBD_SCR_4: | |
434 | scroll = 4 - atkbd->release * 8; | |
435 | break; | |
436 | case ATKBD_SCR_8: | |
437 | scroll = 8 - atkbd->release * 16; | |
438 | break; | |
439 | case ATKBD_SCR_CLICK: | |
440 | click = !atkbd->release; | |
441 | break; | |
442 | case ATKBD_SCR_LEFT: | |
443 | hscroll = -1; | |
444 | break; | |
445 | case ATKBD_SCR_RIGHT: | |
446 | hscroll = 1; | |
447 | break; | |
448 | default: | |
0ae051a1 DT |
449 | if (atkbd->release) { |
450 | value = 0; | |
451 | atkbd->last = 0; | |
452 | } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { | |
453 | /* Workaround Toshiba laptop multiple keypress */ | |
454 | value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; | |
455 | } else { | |
456 | value = 1; | |
457 | atkbd->last = code; | |
458 | atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; | |
1da177e4 LT |
459 | } |
460 | ||
0ae051a1 | 461 | input_regs(dev, regs); |
f8b4c46c | 462 | input_event(dev, EV_KEY, keycode, value); |
0ae051a1 DT |
463 | input_sync(dev); |
464 | ||
465 | if (value && add_release_event) { | |
466 | input_report_key(dev, keycode, 0); | |
467 | input_sync(dev); | |
468 | } | |
1da177e4 LT |
469 | } |
470 | ||
471 | if (atkbd->scroll) { | |
0ae051a1 | 472 | input_regs(dev, regs); |
1da177e4 | 473 | if (click != -1) |
0ae051a1 DT |
474 | input_report_key(dev, BTN_MIDDLE, click); |
475 | input_report_rel(dev, REL_WHEEL, scroll); | |
476 | input_report_rel(dev, REL_HWHEEL, hscroll); | |
477 | input_sync(dev); | |
1da177e4 LT |
478 | } |
479 | ||
480 | atkbd->release = 0; | |
481 | out: | |
482 | return IRQ_HANDLED; | |
483 | } | |
484 | ||
485 | /* | |
0d4c8597 DT |
486 | * atkbd_event_work() is used to complete processing of events that |
487 | * can not be processed by input_event() which is often called from | |
488 | * interrupt context. | |
1da177e4 LT |
489 | */ |
490 | ||
0d4c8597 | 491 | static void atkbd_event_work(void *data) |
1da177e4 | 492 | { |
1da177e4 LT |
493 | const short period[32] = |
494 | { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125, | |
495 | 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 }; | |
496 | const short delay[4] = | |
497 | { 250, 500, 750, 1000 }; | |
0d4c8597 DT |
498 | |
499 | struct atkbd *atkbd = data; | |
500 | struct input_dev *dev = atkbd->dev; | |
1da177e4 LT |
501 | unsigned char param[2]; |
502 | int i, j; | |
503 | ||
33d3f07a | 504 | mutex_lock(&atkbd->event_mutex); |
0d4c8597 DT |
505 | |
506 | if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) { | |
507 | param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0) | |
508 | | (test_bit(LED_NUML, dev->led) ? 2 : 0) | |
509 | | (test_bit(LED_CAPSL, dev->led) ? 4 : 0); | |
510 | ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS); | |
511 | ||
512 | if (atkbd->extra) { | |
513 | param[0] = 0; | |
514 | param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0) | |
515 | | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0) | |
516 | | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0) | |
517 | | (test_bit(LED_MISC, dev->led) ? 0x10 : 0) | |
518 | | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0); | |
519 | ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS); | |
520 | } | |
521 | } | |
522 | ||
523 | if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) { | |
524 | i = j = 0; | |
525 | while (i < 31 && period[i] < dev->rep[REP_PERIOD]) | |
526 | i++; | |
527 | while (j < 3 && delay[j] < dev->rep[REP_DELAY]) | |
528 | j++; | |
529 | dev->rep[REP_PERIOD] = period[i]; | |
530 | dev->rep[REP_DELAY] = delay[j]; | |
531 | param[0] = i | (j << 5); | |
532 | ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETREP); | |
533 | } | |
534 | ||
33d3f07a | 535 | mutex_unlock(&atkbd->event_mutex); |
0d4c8597 DT |
536 | } |
537 | ||
538 | /* | |
539 | * Event callback from the input module. Events that change the state of | |
540 | * the hardware are processed here. If action can not be performed in | |
541 | * interrupt context it is offloaded to atkbd_event_work. | |
542 | */ | |
543 | ||
544 | static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) | |
545 | { | |
546 | struct atkbd *atkbd = dev->private; | |
547 | ||
1da177e4 LT |
548 | if (!atkbd->write) |
549 | return -1; | |
550 | ||
551 | switch (type) { | |
552 | ||
553 | case EV_LED: | |
0d4c8597 DT |
554 | set_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask); |
555 | wmb(); | |
556 | schedule_work(&atkbd->event_work); | |
1da177e4 LT |
557 | return 0; |
558 | ||
1da177e4 LT |
559 | case EV_REP: |
560 | ||
0d4c8597 DT |
561 | if (!atkbd->softrepeat) { |
562 | set_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask); | |
563 | wmb(); | |
564 | schedule_work(&atkbd->event_work); | |
565 | } | |
1da177e4 LT |
566 | |
567 | return 0; | |
568 | } | |
569 | ||
570 | return -1; | |
571 | } | |
572 | ||
573 | /* | |
574 | * atkbd_enable() signals that interrupt handler is allowed to | |
575 | * generate input events. | |
576 | */ | |
577 | ||
578 | static inline void atkbd_enable(struct atkbd *atkbd) | |
579 | { | |
580 | serio_pause_rx(atkbd->ps2dev.serio); | |
581 | atkbd->enabled = 1; | |
582 | serio_continue_rx(atkbd->ps2dev.serio); | |
583 | } | |
584 | ||
585 | /* | |
586 | * atkbd_disable() tells input handler that all incoming data except | |
587 | * for ACKs and command response should be dropped. | |
588 | */ | |
589 | ||
590 | static inline void atkbd_disable(struct atkbd *atkbd) | |
591 | { | |
592 | serio_pause_rx(atkbd->ps2dev.serio); | |
593 | atkbd->enabled = 0; | |
594 | serio_continue_rx(atkbd->ps2dev.serio); | |
595 | } | |
596 | ||
597 | /* | |
598 | * atkbd_probe() probes for an AT keyboard on a serio port. | |
599 | */ | |
600 | ||
601 | static int atkbd_probe(struct atkbd *atkbd) | |
602 | { | |
603 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
604 | unsigned char param[2]; | |
605 | ||
606 | /* | |
607 | * Some systems, where the bit-twiddling when testing the io-lines of the | |
608 | * controller may confuse the keyboard need a full reset of the keyboard. On | |
609 | * these systems the BIOS also usually doesn't do it for us. | |
610 | */ | |
611 | ||
612 | if (atkbd_reset) | |
613 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT)) | |
614 | printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys); | |
615 | ||
616 | /* | |
617 | * Then we check the keyboard ID. We should get 0xab83 under normal conditions. | |
618 | * Some keyboards report different values, but the first byte is always 0xab or | |
619 | * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this | |
620 | * should make sure we don't try to set the LEDs on it. | |
621 | */ | |
622 | ||
623 | param[0] = param[1] = 0xa5; /* initialize with invalid values */ | |
624 | if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) { | |
625 | ||
626 | /* | |
627 | * If the get ID command failed, we check if we can at least set the LEDs on | |
628 | * the keyboard. This should work on every keyboard out there. It also turns | |
629 | * the LEDs off, which we want anyway. | |
630 | */ | |
631 | param[0] = 0; | |
632 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) | |
633 | return -1; | |
634 | atkbd->id = 0xabba; | |
635 | return 0; | |
636 | } | |
637 | ||
638 | if (param[0] != 0xab && param[0] != 0xac && /* Regular and NCD Sun keyboards */ | |
639 | param[0] != 0x2b && param[0] != 0x5d && /* Trust keyboard, raw and translated */ | |
640 | param[0] != 0x60 && param[0] != 0x47) /* NMB SGI keyboard, raw and translated */ | |
641 | return -1; | |
642 | ||
643 | atkbd->id = (param[0] << 8) | param[1]; | |
644 | ||
645 | if (atkbd->id == 0xaca1 && atkbd->translated) { | |
646 | printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n"); | |
647 | printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n"); | |
648 | return -1; | |
649 | } | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | /* | |
655 | * atkbd_select_set checks if a keyboard has a working Set 3 support, and | |
656 | * sets it into that. Unfortunately there are keyboards that can be switched | |
657 | * to Set 3, but don't work well in that (BTC Multimedia ...) | |
658 | */ | |
659 | ||
660 | static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra) | |
661 | { | |
662 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
663 | unsigned char param[2]; | |
664 | ||
665 | atkbd->extra = 0; | |
666 | /* | |
667 | * For known special keyboards we can go ahead and set the correct set. | |
668 | * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and | |
669 | * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards. | |
670 | */ | |
671 | ||
672 | if (atkbd->translated) | |
673 | return 2; | |
674 | ||
675 | if (atkbd->id == 0xaca1) { | |
676 | param[0] = 3; | |
677 | ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET); | |
678 | return 3; | |
679 | } | |
680 | ||
681 | if (allow_extra) { | |
682 | param[0] = 0x71; | |
683 | if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) { | |
684 | atkbd->extra = 1; | |
685 | return 2; | |
686 | } | |
687 | } | |
688 | ||
689 | if (target_set != 3) | |
690 | return 2; | |
691 | ||
692 | if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) { | |
693 | atkbd->id = param[0] << 8 | param[1]; | |
694 | return 2; | |
695 | } | |
696 | ||
697 | param[0] = 3; | |
698 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) | |
699 | return 2; | |
700 | ||
701 | param[0] = 0; | |
702 | if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET)) | |
703 | return 2; | |
704 | ||
705 | if (param[0] != 3) { | |
706 | param[0] = 2; | |
707 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) | |
708 | return 2; | |
709 | } | |
710 | ||
711 | ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR); | |
712 | ||
713 | return 3; | |
714 | } | |
715 | ||
716 | static int atkbd_activate(struct atkbd *atkbd) | |
717 | { | |
718 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
719 | unsigned char param[1]; | |
720 | ||
721 | /* | |
722 | * Set the LEDs to a defined state. | |
723 | */ | |
724 | ||
725 | param[0] = 0; | |
726 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) | |
727 | return -1; | |
728 | ||
729 | /* | |
730 | * Set autorepeat to fastest possible. | |
731 | */ | |
732 | ||
733 | param[0] = 0; | |
734 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP)) | |
735 | return -1; | |
736 | ||
737 | /* | |
738 | * Enable the keyboard to receive keystrokes. | |
739 | */ | |
740 | ||
741 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { | |
742 | printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", | |
743 | ps2dev->serio->phys); | |
744 | return -1; | |
745 | } | |
746 | ||
747 | return 0; | |
748 | } | |
749 | ||
750 | /* | |
751 | * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a | |
752 | * reboot. | |
753 | */ | |
754 | ||
755 | static void atkbd_cleanup(struct serio *serio) | |
756 | { | |
757 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
758 | ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT); | |
759 | } | |
760 | ||
761 | ||
762 | /* | |
763 | * atkbd_disconnect() closes and frees. | |
764 | */ | |
765 | ||
766 | static void atkbd_disconnect(struct serio *serio) | |
767 | { | |
768 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
769 | ||
770 | atkbd_disable(atkbd); | |
771 | ||
772 | /* make sure we don't have a command in flight */ | |
fbd568a3 | 773 | synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */ |
1da177e4 LT |
774 | flush_scheduled_work(); |
775 | ||
776 | device_remove_file(&serio->dev, &atkbd_attr_extra); | |
777 | device_remove_file(&serio->dev, &atkbd_attr_scroll); | |
778 | device_remove_file(&serio->dev, &atkbd_attr_set); | |
779 | device_remove_file(&serio->dev, &atkbd_attr_softrepeat); | |
780 | device_remove_file(&serio->dev, &atkbd_attr_softraw); | |
781 | ||
3c42f0c3 | 782 | input_unregister_device(atkbd->dev); |
1da177e4 LT |
783 | serio_close(serio); |
784 | serio_set_drvdata(serio, NULL); | |
785 | kfree(atkbd); | |
786 | } | |
787 | ||
788 | ||
789 | /* | |
3c42f0c3 | 790 | * atkbd_set_keycode_table() initializes keyboard's keycode table |
1da177e4 LT |
791 | * according to the selected scancode set |
792 | */ | |
793 | ||
794 | static void atkbd_set_keycode_table(struct atkbd *atkbd) | |
795 | { | |
796 | int i, j; | |
797 | ||
798 | memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); | |
799 | ||
800 | if (atkbd->translated) { | |
801 | for (i = 0; i < 128; i++) { | |
802 | atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]]; | |
803 | atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80]; | |
804 | if (atkbd->scroll) | |
805 | for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) | |
806 | if ((atkbd_unxlate_table[i] | 0x80) == atkbd_scroll_keys[j].set2) | |
807 | atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; | |
808 | } | |
809 | } else if (atkbd->set == 3) { | |
810 | memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); | |
811 | } else { | |
812 | memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); | |
813 | ||
814 | if (atkbd->scroll) | |
815 | for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) | |
816 | atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode; | |
817 | } | |
0ae051a1 DT |
818 | |
819 | atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL)] = KEY_HANGUEL; | |
820 | atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA)] = KEY_HANJA; | |
1da177e4 LT |
821 | } |
822 | ||
823 | /* | |
824 | * atkbd_set_device_attrs() sets up keyboard's input device structure | |
825 | */ | |
826 | ||
827 | static void atkbd_set_device_attrs(struct atkbd *atkbd) | |
828 | { | |
3c42f0c3 | 829 | struct input_dev *input_dev = atkbd->dev; |
1da177e4 LT |
830 | int i; |
831 | ||
3c42f0c3 | 832 | if (atkbd->extra) |
ea08c6fa DT |
833 | snprintf(atkbd->name, sizeof(atkbd->name), |
834 | "AT Set 2 Extra keyboard"); | |
3c42f0c3 | 835 | else |
ea08c6fa DT |
836 | snprintf(atkbd->name, sizeof(atkbd->name), |
837 | "AT %s Set %d keyboard", | |
838 | atkbd->translated ? "Translated" : "Raw", atkbd->set); | |
1da177e4 | 839 | |
ea08c6fa DT |
840 | snprintf(atkbd->phys, sizeof(atkbd->phys), |
841 | "%s/input0", atkbd->ps2dev.serio->phys); | |
1da177e4 | 842 | |
3c42f0c3 DT |
843 | input_dev->name = atkbd->name; |
844 | input_dev->phys = atkbd->phys; | |
845 | input_dev->id.bustype = BUS_I8042; | |
846 | input_dev->id.vendor = 0x0001; | |
847 | input_dev->id.product = atkbd->translated ? 1 : atkbd->set; | |
848 | input_dev->id.version = atkbd->id; | |
849 | input_dev->event = atkbd_event; | |
850 | input_dev->private = atkbd; | |
851 | input_dev->cdev.dev = &atkbd->ps2dev.serio->dev; | |
1da177e4 | 852 | |
3c42f0c3 | 853 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC); |
1da177e4 LT |
854 | |
855 | if (atkbd->write) { | |
3c42f0c3 DT |
856 | input_dev->evbit[0] |= BIT(EV_LED); |
857 | input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL); | |
1da177e4 LT |
858 | } |
859 | ||
860 | if (atkbd->extra) | |
3c42f0c3 | 861 | input_dev->ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | |
1da177e4 LT |
862 | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC); |
863 | ||
864 | if (!atkbd->softrepeat) { | |
3c42f0c3 DT |
865 | input_dev->rep[REP_DELAY] = 250; |
866 | input_dev->rep[REP_PERIOD] = 33; | |
1da177e4 LT |
867 | } |
868 | ||
3c42f0c3 | 869 | input_dev->mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN); |
1da177e4 LT |
870 | |
871 | if (atkbd->scroll) { | |
3c42f0c3 DT |
872 | input_dev->evbit[0] |= BIT(EV_REL); |
873 | input_dev->relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL); | |
874 | set_bit(BTN_MIDDLE, input_dev->keybit); | |
1da177e4 LT |
875 | } |
876 | ||
3c42f0c3 DT |
877 | input_dev->keycode = atkbd->keycode; |
878 | input_dev->keycodesize = sizeof(unsigned char); | |
879 | input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); | |
1da177e4 LT |
880 | |
881 | for (i = 0; i < 512; i++) | |
882 | if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) | |
3c42f0c3 | 883 | set_bit(atkbd->keycode[i], input_dev->keybit); |
1da177e4 LT |
884 | } |
885 | ||
886 | /* | |
887 | * atkbd_connect() is called when the serio module finds an interface | |
888 | * that isn't handled yet by an appropriate device driver. We check if | |
889 | * there is an AT keyboard out there and if yes, we register ourselves | |
890 | * to the input module. | |
891 | */ | |
892 | ||
893 | static int atkbd_connect(struct serio *serio, struct serio_driver *drv) | |
894 | { | |
895 | struct atkbd *atkbd; | |
3c42f0c3 DT |
896 | struct input_dev *dev; |
897 | int err = -ENOMEM; | |
1da177e4 | 898 | |
3c42f0c3 DT |
899 | atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); |
900 | dev = input_allocate_device(); | |
901 | if (!atkbd || !dev) | |
902 | goto fail; | |
1da177e4 | 903 | |
3c42f0c3 | 904 | atkbd->dev = dev; |
1da177e4 | 905 | ps2_init(&atkbd->ps2dev, serio); |
0d4c8597 | 906 | INIT_WORK(&atkbd->event_work, atkbd_event_work, atkbd); |
33d3f07a | 907 | mutex_init(&atkbd->event_mutex); |
1da177e4 LT |
908 | |
909 | switch (serio->id.type) { | |
910 | ||
911 | case SERIO_8042_XL: | |
912 | atkbd->translated = 1; | |
913 | case SERIO_8042: | |
914 | if (serio->write) | |
915 | atkbd->write = 1; | |
916 | break; | |
917 | } | |
918 | ||
919 | atkbd->softraw = atkbd_softraw; | |
920 | atkbd->softrepeat = atkbd_softrepeat; | |
921 | atkbd->scroll = atkbd_scroll; | |
922 | ||
1da177e4 LT |
923 | if (atkbd->softrepeat) |
924 | atkbd->softraw = 1; | |
925 | ||
926 | serio_set_drvdata(serio, atkbd); | |
927 | ||
928 | err = serio_open(serio, drv); | |
3c42f0c3 DT |
929 | if (err) |
930 | goto fail; | |
1da177e4 LT |
931 | |
932 | if (atkbd->write) { | |
933 | ||
934 | if (atkbd_probe(atkbd)) { | |
935 | serio_close(serio); | |
3c42f0c3 DT |
936 | err = -ENODEV; |
937 | goto fail; | |
1da177e4 LT |
938 | } |
939 | ||
940 | atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); | |
941 | atkbd_activate(atkbd); | |
942 | ||
943 | } else { | |
944 | atkbd->set = 2; | |
945 | atkbd->id = 0xab00; | |
946 | } | |
947 | ||
1da177e4 LT |
948 | atkbd_set_keycode_table(atkbd); |
949 | atkbd_set_device_attrs(atkbd); | |
950 | ||
1da177e4 LT |
951 | device_create_file(&serio->dev, &atkbd_attr_extra); |
952 | device_create_file(&serio->dev, &atkbd_attr_scroll); | |
953 | device_create_file(&serio->dev, &atkbd_attr_set); | |
954 | device_create_file(&serio->dev, &atkbd_attr_softrepeat); | |
955 | device_create_file(&serio->dev, &atkbd_attr_softraw); | |
956 | ||
957 | atkbd_enable(atkbd); | |
958 | ||
3c42f0c3 | 959 | input_register_device(atkbd->dev); |
1da177e4 LT |
960 | |
961 | return 0; | |
3c42f0c3 DT |
962 | |
963 | fail: serio_set_drvdata(serio, NULL); | |
964 | input_free_device(dev); | |
965 | kfree(atkbd); | |
966 | return err; | |
1da177e4 LT |
967 | } |
968 | ||
969 | /* | |
970 | * atkbd_reconnect() tries to restore keyboard into a sane state and is | |
971 | * most likely called on resume. | |
972 | */ | |
973 | ||
974 | static int atkbd_reconnect(struct serio *serio) | |
975 | { | |
976 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
977 | struct serio_driver *drv = serio->drv; | |
978 | unsigned char param[1]; | |
979 | ||
980 | if (!atkbd || !drv) { | |
981 | printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); | |
982 | return -1; | |
983 | } | |
984 | ||
985 | atkbd_disable(atkbd); | |
986 | ||
987 | if (atkbd->write) { | |
3c42f0c3 DT |
988 | param[0] = (test_bit(LED_SCROLLL, atkbd->dev->led) ? 1 : 0) |
989 | | (test_bit(LED_NUML, atkbd->dev->led) ? 2 : 0) | |
990 | | (test_bit(LED_CAPSL, atkbd->dev->led) ? 4 : 0); | |
1da177e4 LT |
991 | |
992 | if (atkbd_probe(atkbd)) | |
993 | return -1; | |
994 | if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) | |
995 | return -1; | |
996 | ||
997 | atkbd_activate(atkbd); | |
998 | ||
999 | if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) | |
1000 | return -1; | |
1001 | } | |
1002 | ||
1003 | atkbd_enable(atkbd); | |
1004 | ||
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static struct serio_device_id atkbd_serio_ids[] = { | |
1009 | { | |
1010 | .type = SERIO_8042, | |
1011 | .proto = SERIO_ANY, | |
1012 | .id = SERIO_ANY, | |
1013 | .extra = SERIO_ANY, | |
1014 | }, | |
1015 | { | |
1016 | .type = SERIO_8042_XL, | |
1017 | .proto = SERIO_ANY, | |
1018 | .id = SERIO_ANY, | |
1019 | .extra = SERIO_ANY, | |
1020 | }, | |
1021 | { | |
1022 | .type = SERIO_RS232, | |
1023 | .proto = SERIO_PS2SER, | |
1024 | .id = SERIO_ANY, | |
1025 | .extra = SERIO_ANY, | |
1026 | }, | |
1027 | { 0 } | |
1028 | }; | |
1029 | ||
1030 | MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); | |
1031 | ||
1032 | static struct serio_driver atkbd_drv = { | |
1033 | .driver = { | |
1034 | .name = "atkbd", | |
1035 | }, | |
1036 | .description = DRIVER_DESC, | |
1037 | .id_table = atkbd_serio_ids, | |
1038 | .interrupt = atkbd_interrupt, | |
1039 | .connect = atkbd_connect, | |
1040 | .reconnect = atkbd_reconnect, | |
1041 | .disconnect = atkbd_disconnect, | |
1042 | .cleanup = atkbd_cleanup, | |
1043 | }; | |
1044 | ||
1045 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, | |
1046 | ssize_t (*handler)(struct atkbd *, char *)) | |
1047 | { | |
1048 | struct serio *serio = to_serio_port(dev); | |
1049 | int retval; | |
1050 | ||
1051 | retval = serio_pin_driver(serio); | |
1052 | if (retval) | |
1053 | return retval; | |
1054 | ||
1055 | if (serio->drv != &atkbd_drv) { | |
1056 | retval = -ENODEV; | |
1057 | goto out; | |
1058 | } | |
1059 | ||
1060 | retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); | |
1061 | ||
1062 | out: | |
1063 | serio_unpin_driver(serio); | |
1064 | return retval; | |
1065 | } | |
1066 | ||
1067 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, | |
1068 | ssize_t (*handler)(struct atkbd *, const char *, size_t)) | |
1069 | { | |
1070 | struct serio *serio = to_serio_port(dev); | |
1071 | struct atkbd *atkbd; | |
1072 | int retval; | |
1073 | ||
1074 | retval = serio_pin_driver(serio); | |
1075 | if (retval) | |
1076 | return retval; | |
1077 | ||
1078 | if (serio->drv != &atkbd_drv) { | |
1079 | retval = -ENODEV; | |
1080 | goto out; | |
1081 | } | |
1082 | ||
1083 | atkbd = serio_get_drvdata(serio); | |
1084 | atkbd_disable(atkbd); | |
1085 | retval = handler(atkbd, buf, count); | |
1086 | atkbd_enable(atkbd); | |
1087 | ||
1088 | out: | |
1089 | serio_unpin_driver(serio); | |
1090 | return retval; | |
1091 | } | |
1092 | ||
1093 | static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) | |
1094 | { | |
1095 | return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); | |
1096 | } | |
1097 | ||
1098 | static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count) | |
1099 | { | |
3c42f0c3 | 1100 | struct input_dev *new_dev; |
1da177e4 LT |
1101 | unsigned long value; |
1102 | char *rest; | |
1103 | ||
1104 | if (!atkbd->write) | |
1105 | return -EIO; | |
1106 | ||
1107 | value = simple_strtoul(buf, &rest, 10); | |
1108 | if (*rest || value > 1) | |
1109 | return -EINVAL; | |
1110 | ||
1111 | if (atkbd->extra != value) { | |
3c42f0c3 DT |
1112 | /* |
1113 | * Since device's properties will change we need to | |
1114 | * unregister old device. But allocate new one first | |
1115 | * to make sure we have it. | |
1116 | */ | |
1117 | if (!(new_dev = input_allocate_device())) | |
1118 | return -ENOMEM; | |
1119 | input_unregister_device(atkbd->dev); | |
1120 | atkbd->dev = new_dev; | |
1da177e4 LT |
1121 | atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); |
1122 | atkbd_activate(atkbd); | |
1123 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1124 | input_register_device(atkbd->dev); |
1da177e4 LT |
1125 | } |
1126 | return count; | |
1127 | } | |
1128 | ||
1129 | static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) | |
1130 | { | |
1131 | return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); | |
1132 | } | |
1133 | ||
1134 | static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) | |
1135 | { | |
3c42f0c3 | 1136 | struct input_dev *new_dev; |
1da177e4 LT |
1137 | unsigned long value; |
1138 | char *rest; | |
1139 | ||
1140 | value = simple_strtoul(buf, &rest, 10); | |
1141 | if (*rest || value > 1) | |
1142 | return -EINVAL; | |
1143 | ||
1144 | if (atkbd->scroll != value) { | |
3c42f0c3 DT |
1145 | if (!(new_dev = input_allocate_device())) |
1146 | return -ENOMEM; | |
1147 | input_unregister_device(atkbd->dev); | |
1148 | atkbd->dev = new_dev; | |
1da177e4 LT |
1149 | atkbd->scroll = value; |
1150 | atkbd_set_keycode_table(atkbd); | |
1151 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1152 | input_register_device(atkbd->dev); |
1da177e4 LT |
1153 | } |
1154 | return count; | |
1155 | } | |
1156 | ||
1157 | static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) | |
1158 | { | |
1159 | return sprintf(buf, "%d\n", atkbd->set); | |
1160 | } | |
1161 | ||
1162 | static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) | |
1163 | { | |
3c42f0c3 | 1164 | struct input_dev *new_dev; |
1da177e4 LT |
1165 | unsigned long value; |
1166 | char *rest; | |
1167 | ||
1168 | if (!atkbd->write) | |
1169 | return -EIO; | |
1170 | ||
1171 | value = simple_strtoul(buf, &rest, 10); | |
1172 | if (*rest || (value != 2 && value != 3)) | |
1173 | return -EINVAL; | |
1174 | ||
1175 | if (atkbd->set != value) { | |
3c42f0c3 DT |
1176 | if (!(new_dev = input_allocate_device())) |
1177 | return -ENOMEM; | |
1178 | input_unregister_device(atkbd->dev); | |
1179 | atkbd->dev = new_dev; | |
1da177e4 LT |
1180 | atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); |
1181 | atkbd_activate(atkbd); | |
1182 | atkbd_set_keycode_table(atkbd); | |
1183 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1184 | input_register_device(atkbd->dev); |
1da177e4 LT |
1185 | } |
1186 | return count; | |
1187 | } | |
1188 | ||
1189 | static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) | |
1190 | { | |
1191 | return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); | |
1192 | } | |
1193 | ||
1194 | static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) | |
1195 | { | |
3c42f0c3 | 1196 | struct input_dev *new_dev; |
1da177e4 LT |
1197 | unsigned long value; |
1198 | char *rest; | |
1199 | ||
1200 | if (!atkbd->write) | |
1201 | return -EIO; | |
1202 | ||
1203 | value = simple_strtoul(buf, &rest, 10); | |
1204 | if (*rest || value > 1) | |
1205 | return -EINVAL; | |
1206 | ||
1207 | if (atkbd->softrepeat != value) { | |
3c42f0c3 DT |
1208 | if (!(new_dev = input_allocate_device())) |
1209 | return -ENOMEM; | |
1210 | input_unregister_device(atkbd->dev); | |
1211 | atkbd->dev = new_dev; | |
1da177e4 LT |
1212 | atkbd->softrepeat = value; |
1213 | if (atkbd->softrepeat) | |
1214 | atkbd->softraw = 1; | |
1215 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1216 | input_register_device(atkbd->dev); |
1da177e4 | 1217 | } |
1da177e4 LT |
1218 | return count; |
1219 | } | |
1220 | ||
1221 | ||
1222 | static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) | |
1223 | { | |
1224 | return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); | |
1225 | } | |
1226 | ||
1227 | static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) | |
1228 | { | |
3c42f0c3 | 1229 | struct input_dev *new_dev; |
1da177e4 LT |
1230 | unsigned long value; |
1231 | char *rest; | |
1232 | ||
1233 | value = simple_strtoul(buf, &rest, 10); | |
1234 | if (*rest || value > 1) | |
1235 | return -EINVAL; | |
1236 | ||
1237 | if (atkbd->softraw != value) { | |
3c42f0c3 DT |
1238 | if (!(new_dev = input_allocate_device())) |
1239 | return -ENOMEM; | |
1240 | input_unregister_device(atkbd->dev); | |
1241 | atkbd->dev = new_dev; | |
1da177e4 LT |
1242 | atkbd->softraw = value; |
1243 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1244 | input_register_device(atkbd->dev); |
1da177e4 LT |
1245 | } |
1246 | return count; | |
1247 | } | |
1248 | ||
1249 | ||
1250 | static int __init atkbd_init(void) | |
1251 | { | |
1252 | serio_register_driver(&atkbd_drv); | |
1253 | return 0; | |
1254 | } | |
1255 | ||
1256 | static void __exit atkbd_exit(void) | |
1257 | { | |
1258 | serio_unregister_driver(&atkbd_drv); | |
1259 | } | |
1260 | ||
1261 | module_init(atkbd_init); | |
1262 | module_exit(atkbd_exit); |