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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; | |
86255d9d | 224 | unsigned long err_count; |
0d4c8597 DT |
225 | |
226 | struct work_struct event_work; | |
33d3f07a | 227 | struct mutex event_mutex; |
0d4c8597 | 228 | unsigned long event_mask; |
1da177e4 LT |
229 | }; |
230 | ||
231 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, | |
232 | ssize_t (*handler)(struct atkbd *, char *)); | |
233 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, | |
234 | ssize_t (*handler)(struct atkbd *, const char *, size_t)); | |
235 | #define ATKBD_DEFINE_ATTR(_name) \ | |
236 | static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ | |
237 | static ssize_t atkbd_set_##_name(struct atkbd *, const char *, size_t); \ | |
86255d9d DT |
238 | static ssize_t atkbd_do_show_##_name(struct device *d, \ |
239 | struct device_attribute *attr, char *b) \ | |
1da177e4 LT |
240 | { \ |
241 | return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ | |
242 | } \ | |
86255d9d DT |
243 | static ssize_t atkbd_do_set_##_name(struct device *d, \ |
244 | struct device_attribute *attr, const char *b, size_t s) \ | |
1da177e4 LT |
245 | { \ |
246 | return atkbd_attr_set_helper(d, b, s, atkbd_set_##_name); \ | |
247 | } \ | |
d083e906 | 248 | static struct device_attribute atkbd_attr_##_name = \ |
1da177e4 LT |
249 | __ATTR(_name, S_IWUSR | S_IRUGO, atkbd_do_show_##_name, atkbd_do_set_##_name); |
250 | ||
251 | ATKBD_DEFINE_ATTR(extra); | |
252 | ATKBD_DEFINE_ATTR(scroll); | |
253 | ATKBD_DEFINE_ATTR(set); | |
254 | ATKBD_DEFINE_ATTR(softrepeat); | |
255 | ATKBD_DEFINE_ATTR(softraw); | |
256 | ||
86255d9d DT |
257 | #define ATKBD_DEFINE_RO_ATTR(_name) \ |
258 | static ssize_t atkbd_show_##_name(struct atkbd *, char *); \ | |
259 | static ssize_t atkbd_do_show_##_name(struct device *d, \ | |
260 | struct device_attribute *attr, char *b) \ | |
261 | { \ | |
262 | return atkbd_attr_show_helper(d, b, atkbd_show_##_name); \ | |
263 | } \ | |
264 | static struct device_attribute atkbd_attr_##_name = \ | |
265 | __ATTR(_name, S_IRUGO, atkbd_do_show_##_name, NULL); | |
266 | ||
267 | ATKBD_DEFINE_RO_ATTR(err_count); | |
268 | ||
269 | static struct attribute *atkbd_attributes[] = { | |
270 | &atkbd_attr_extra.attr, | |
271 | &atkbd_attr_scroll.attr, | |
272 | &atkbd_attr_set.attr, | |
273 | &atkbd_attr_softrepeat.attr, | |
274 | &atkbd_attr_softraw.attr, | |
275 | &atkbd_attr_err_count.attr, | |
276 | NULL | |
277 | }; | |
278 | ||
279 | static struct attribute_group atkbd_attribute_group = { | |
280 | .attrs = atkbd_attributes, | |
281 | }; | |
282 | ||
0ae051a1 DT |
283 | static const unsigned int xl_table[] = { |
284 | ATKBD_RET_BAT, ATKBD_RET_ERR, ATKBD_RET_ACK, | |
285 | ATKBD_RET_NAK, ATKBD_RET_HANJA, ATKBD_RET_HANGEUL, | |
286 | }; | |
1da177e4 | 287 | |
0ae051a1 DT |
288 | /* |
289 | * Checks if we should mangle the scancode to extract 'release' bit | |
290 | * in translated mode. | |
291 | */ | |
292 | static int atkbd_need_xlate(unsigned long xl_bit, unsigned char code) | |
1da177e4 | 293 | { |
0ae051a1 DT |
294 | int i; |
295 | ||
296 | if (code == ATKBD_RET_EMUL0 || code == ATKBD_RET_EMUL1) | |
297 | return 0; | |
298 | ||
299 | for (i = 0; i < ARRAY_SIZE(xl_table); i++) | |
300 | if (code == xl_table[i]) | |
301 | return test_bit(i, &xl_bit); | |
302 | ||
303 | return 1; | |
304 | } | |
305 | ||
306 | /* | |
307 | * Calculates new value of xl_bit so the driver can distinguish | |
308 | * between make/break pair of scancodes for select keys and PS/2 | |
309 | * protocol responses. | |
310 | */ | |
311 | static void atkbd_calculate_xl_bit(struct atkbd *atkbd, unsigned char code) | |
312 | { | |
313 | int i; | |
314 | ||
315 | for (i = 0; i < ARRAY_SIZE(xl_table); i++) { | |
316 | if (!((code ^ xl_table[i]) & 0x7f)) { | |
317 | if (code & 0x80) | |
318 | __clear_bit(i, &atkbd->xl_bit); | |
319 | else | |
320 | __set_bit(i, &atkbd->xl_bit); | |
321 | break; | |
322 | } | |
323 | } | |
324 | } | |
325 | ||
326 | /* | |
327 | * Encode the scancode, 0xe0 prefix, and high bit into a single integer, | |
328 | * keeping kernel 2.4 compatibility for set 2 | |
329 | */ | |
330 | static unsigned int atkbd_compat_scancode(struct atkbd *atkbd, unsigned int code) | |
331 | { | |
332 | if (atkbd->set == 3) { | |
333 | if (atkbd->emul == 1) | |
334 | code |= 0x100; | |
335 | } else { | |
336 | code = (code & 0x7f) | ((code & 0x80) << 1); | |
337 | if (atkbd->emul == 1) | |
338 | code |= 0x80; | |
339 | } | |
340 | ||
341 | return code; | |
1da177e4 LT |
342 | } |
343 | ||
344 | /* | |
345 | * atkbd_interrupt(). Here takes place processing of data received from | |
346 | * the keyboard into events. | |
347 | */ | |
348 | ||
349 | static irqreturn_t atkbd_interrupt(struct serio *serio, unsigned char data, | |
7d12e780 | 350 | unsigned int flags) |
1da177e4 LT |
351 | { |
352 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
0ae051a1 | 353 | struct input_dev *dev = atkbd->dev; |
1da177e4 | 354 | unsigned int code = data; |
0ae051a1 | 355 | int scroll = 0, hscroll = 0, click = -1, add_release_event = 0; |
1da177e4 | 356 | int value; |
0ae051a1 | 357 | unsigned char keycode; |
1da177e4 LT |
358 | |
359 | #ifdef ATKBD_DEBUG | |
360 | printk(KERN_DEBUG "atkbd.c: Received %02x flags %02x\n", data, flags); | |
361 | #endif | |
362 | ||
363 | #if !defined(__i386__) && !defined (__x86_64__) | |
364 | if ((flags & (SERIO_FRAME | SERIO_PARITY)) && (~flags & SERIO_TIMEOUT) && !atkbd->resend && atkbd->write) { | |
365 | printk(KERN_WARNING "atkbd.c: frame/parity error: %02x\n", flags); | |
366 | serio_write(serio, ATKBD_CMD_RESEND); | |
367 | atkbd->resend = 1; | |
368 | goto out; | |
369 | } | |
370 | ||
371 | if (!flags && data == ATKBD_RET_ACK) | |
372 | atkbd->resend = 0; | |
373 | #endif | |
374 | ||
375 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_ACK)) | |
376 | if (ps2_handle_ack(&atkbd->ps2dev, data)) | |
377 | goto out; | |
378 | ||
379 | if (unlikely(atkbd->ps2dev.flags & PS2_FLAG_CMD)) | |
380 | if (ps2_handle_response(&atkbd->ps2dev, data)) | |
381 | goto out; | |
382 | ||
383 | if (!atkbd->enabled) | |
384 | goto out; | |
385 | ||
0ae051a1 | 386 | input_event(dev, EV_MSC, MSC_RAW, code); |
1da177e4 LT |
387 | |
388 | if (atkbd->translated) { | |
389 | ||
0ae051a1 | 390 | if (atkbd->emul || atkbd_need_xlate(atkbd->xl_bit, code)) { |
1da177e4 LT |
391 | atkbd->release = code >> 7; |
392 | code &= 0x7f; | |
393 | } | |
394 | ||
0ae051a1 DT |
395 | if (!atkbd->emul) |
396 | atkbd_calculate_xl_bit(atkbd, data); | |
1da177e4 LT |
397 | } |
398 | ||
399 | switch (code) { | |
400 | case ATKBD_RET_BAT: | |
401 | atkbd->enabled = 0; | |
dbc26344 | 402 | serio_reconnect(atkbd->ps2dev.serio); |
1da177e4 LT |
403 | goto out; |
404 | case ATKBD_RET_EMUL0: | |
405 | atkbd->emul = 1; | |
406 | goto out; | |
407 | case ATKBD_RET_EMUL1: | |
408 | atkbd->emul = 2; | |
409 | goto out; | |
410 | case ATKBD_RET_RELEASE: | |
411 | atkbd->release = 1; | |
412 | goto out; | |
0ae051a1 DT |
413 | case ATKBD_RET_ACK: |
414 | case ATKBD_RET_NAK: | |
415 | printk(KERN_WARNING "atkbd.c: Spurious %s on %s. " | |
416 | "Some program might be trying access hardware directly.\n", | |
417 | data == ATKBD_RET_ACK ? "ACK" : "NAK", serio->phys); | |
1da177e4 | 418 | goto out; |
0ae051a1 | 419 | case ATKBD_RET_HANGEUL: |
1da177e4 | 420 | case ATKBD_RET_HANJA: |
0ae051a1 DT |
421 | /* |
422 | * These keys do not report release and thus need to be | |
423 | * flagged properly | |
424 | */ | |
425 | add_release_event = 1; | |
426 | break; | |
1da177e4 | 427 | case ATKBD_RET_ERR: |
86255d9d DT |
428 | atkbd->err_count++; |
429 | #ifdef ATKBD_DEBUG | |
1da177e4 | 430 | printk(KERN_DEBUG "atkbd.c: Keyboard on %s reports too many keys pressed.\n", serio->phys); |
86255d9d | 431 | #endif |
1da177e4 LT |
432 | goto out; |
433 | } | |
434 | ||
0ae051a1 DT |
435 | code = atkbd_compat_scancode(atkbd, code); |
436 | ||
437 | if (atkbd->emul && --atkbd->emul) | |
438 | goto out; | |
439 | ||
440 | keycode = atkbd->keycode[code]; | |
1da177e4 | 441 | |
0ae051a1 DT |
442 | if (keycode != ATKBD_KEY_NULL) |
443 | input_event(dev, EV_MSC, MSC_SCAN, code); | |
1da177e4 | 444 | |
0ae051a1 | 445 | switch (keycode) { |
1da177e4 LT |
446 | case ATKBD_KEY_NULL: |
447 | break; | |
448 | case ATKBD_KEY_UNKNOWN: | |
0ae051a1 DT |
449 | printk(KERN_WARNING |
450 | "atkbd.c: Unknown key %s (%s set %d, code %#x on %s).\n", | |
451 | atkbd->release ? "released" : "pressed", | |
452 | atkbd->translated ? "translated" : "raw", | |
453 | atkbd->set, code, serio->phys); | |
454 | printk(KERN_WARNING | |
455 | "atkbd.c: Use 'setkeycodes %s%02x <keycode>' to make it known.\n", | |
456 | code & 0x80 ? "e0" : "", code & 0x7f); | |
457 | input_sync(dev); | |
1da177e4 LT |
458 | break; |
459 | case ATKBD_SCR_1: | |
460 | scroll = 1 - atkbd->release * 2; | |
461 | break; | |
462 | case ATKBD_SCR_2: | |
463 | scroll = 2 - atkbd->release * 4; | |
464 | break; | |
465 | case ATKBD_SCR_4: | |
466 | scroll = 4 - atkbd->release * 8; | |
467 | break; | |
468 | case ATKBD_SCR_8: | |
469 | scroll = 8 - atkbd->release * 16; | |
470 | break; | |
471 | case ATKBD_SCR_CLICK: | |
472 | click = !atkbd->release; | |
473 | break; | |
474 | case ATKBD_SCR_LEFT: | |
475 | hscroll = -1; | |
476 | break; | |
477 | case ATKBD_SCR_RIGHT: | |
478 | hscroll = 1; | |
479 | break; | |
480 | default: | |
0ae051a1 DT |
481 | if (atkbd->release) { |
482 | value = 0; | |
483 | atkbd->last = 0; | |
484 | } else if (!atkbd->softrepeat && test_bit(keycode, dev->key)) { | |
485 | /* Workaround Toshiba laptop multiple keypress */ | |
486 | value = time_before(jiffies, atkbd->time) && atkbd->last == code ? 1 : 2; | |
487 | } else { | |
488 | value = 1; | |
489 | atkbd->last = code; | |
490 | atkbd->time = jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]) / 2; | |
1da177e4 LT |
491 | } |
492 | ||
f8b4c46c | 493 | input_event(dev, EV_KEY, keycode, value); |
0ae051a1 DT |
494 | input_sync(dev); |
495 | ||
496 | if (value && add_release_event) { | |
497 | input_report_key(dev, keycode, 0); | |
498 | input_sync(dev); | |
499 | } | |
1da177e4 LT |
500 | } |
501 | ||
502 | if (atkbd->scroll) { | |
1da177e4 | 503 | if (click != -1) |
0ae051a1 DT |
504 | input_report_key(dev, BTN_MIDDLE, click); |
505 | input_report_rel(dev, REL_WHEEL, scroll); | |
506 | input_report_rel(dev, REL_HWHEEL, hscroll); | |
507 | input_sync(dev); | |
1da177e4 LT |
508 | } |
509 | ||
510 | atkbd->release = 0; | |
511 | out: | |
512 | return IRQ_HANDLED; | |
513 | } | |
514 | ||
3d0f0fa0 | 515 | static int atkbd_set_repeat_rate(struct atkbd *atkbd) |
1da177e4 | 516 | { |
1da177e4 LT |
517 | const short period[32] = |
518 | { 33, 37, 42, 46, 50, 54, 58, 63, 67, 75, 83, 92, 100, 109, 116, 125, | |
519 | 133, 149, 167, 182, 200, 217, 232, 250, 270, 303, 333, 370, 400, 435, 470, 500 }; | |
520 | const short delay[4] = | |
521 | { 250, 500, 750, 1000 }; | |
0d4c8597 | 522 | |
3d0f0fa0 DT |
523 | struct input_dev *dev = atkbd->dev; |
524 | unsigned char param; | |
525 | int i = 0, j = 0; | |
526 | ||
527 | while (i < ARRAY_SIZE(period) - 1 && period[i] < dev->rep[REP_PERIOD]) | |
528 | i++; | |
529 | dev->rep[REP_PERIOD] = period[i]; | |
530 | ||
8ea371fb | 531 | while (j < ARRAY_SIZE(delay) - 1 && delay[j] < dev->rep[REP_DELAY]) |
3d0f0fa0 DT |
532 | j++; |
533 | dev->rep[REP_DELAY] = delay[j]; | |
534 | ||
535 | param = i | (j << 5); | |
536 | return ps2_command(&atkbd->ps2dev, ¶m, ATKBD_CMD_SETREP); | |
537 | } | |
538 | ||
539 | static int atkbd_set_leds(struct atkbd *atkbd) | |
540 | { | |
0d4c8597 | 541 | struct input_dev *dev = atkbd->dev; |
1da177e4 | 542 | unsigned char param[2]; |
1da177e4 | 543 | |
3d0f0fa0 DT |
544 | param[0] = (test_bit(LED_SCROLLL, dev->led) ? 1 : 0) |
545 | | (test_bit(LED_NUML, dev->led) ? 2 : 0) | |
546 | | (test_bit(LED_CAPSL, dev->led) ? 4 : 0); | |
547 | if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_SETLEDS)) | |
548 | return -1; | |
0d4c8597 | 549 | |
3d0f0fa0 DT |
550 | if (atkbd->extra) { |
551 | param[0] = 0; | |
552 | param[1] = (test_bit(LED_COMPOSE, dev->led) ? 0x01 : 0) | |
553 | | (test_bit(LED_SLEEP, dev->led) ? 0x02 : 0) | |
554 | | (test_bit(LED_SUSPEND, dev->led) ? 0x04 : 0) | |
555 | | (test_bit(LED_MISC, dev->led) ? 0x10 : 0) | |
556 | | (test_bit(LED_MUTE, dev->led) ? 0x20 : 0); | |
557 | if (ps2_command(&atkbd->ps2dev, param, ATKBD_CMD_EX_SETLEDS)) | |
558 | return -1; | |
0d4c8597 DT |
559 | } |
560 | ||
3d0f0fa0 DT |
561 | return 0; |
562 | } | |
563 | ||
564 | /* | |
565 | * atkbd_event_work() is used to complete processing of events that | |
566 | * can not be processed by input_event() which is often called from | |
567 | * interrupt context. | |
568 | */ | |
569 | ||
570 | static void atkbd_event_work(void *data) | |
571 | { | |
572 | struct atkbd *atkbd = data; | |
573 | ||
574 | mutex_lock(&atkbd->event_mutex); | |
575 | ||
576 | if (test_and_clear_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask)) | |
577 | atkbd_set_leds(atkbd); | |
578 | ||
579 | if (test_and_clear_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask)) | |
580 | atkbd_set_repeat_rate(atkbd); | |
0d4c8597 | 581 | |
33d3f07a | 582 | mutex_unlock(&atkbd->event_mutex); |
0d4c8597 DT |
583 | } |
584 | ||
585 | /* | |
586 | * Event callback from the input module. Events that change the state of | |
587 | * the hardware are processed here. If action can not be performed in | |
588 | * interrupt context it is offloaded to atkbd_event_work. | |
589 | */ | |
590 | ||
591 | static int atkbd_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) | |
592 | { | |
593 | struct atkbd *atkbd = dev->private; | |
594 | ||
1da177e4 LT |
595 | if (!atkbd->write) |
596 | return -1; | |
597 | ||
598 | switch (type) { | |
599 | ||
600 | case EV_LED: | |
0d4c8597 DT |
601 | set_bit(ATKBD_LED_EVENT_BIT, &atkbd->event_mask); |
602 | wmb(); | |
603 | schedule_work(&atkbd->event_work); | |
1da177e4 LT |
604 | return 0; |
605 | ||
1da177e4 LT |
606 | case EV_REP: |
607 | ||
0d4c8597 DT |
608 | if (!atkbd->softrepeat) { |
609 | set_bit(ATKBD_REP_EVENT_BIT, &atkbd->event_mask); | |
610 | wmb(); | |
611 | schedule_work(&atkbd->event_work); | |
612 | } | |
1da177e4 LT |
613 | |
614 | return 0; | |
615 | } | |
616 | ||
617 | return -1; | |
618 | } | |
619 | ||
620 | /* | |
621 | * atkbd_enable() signals that interrupt handler is allowed to | |
622 | * generate input events. | |
623 | */ | |
624 | ||
625 | static inline void atkbd_enable(struct atkbd *atkbd) | |
626 | { | |
627 | serio_pause_rx(atkbd->ps2dev.serio); | |
628 | atkbd->enabled = 1; | |
629 | serio_continue_rx(atkbd->ps2dev.serio); | |
630 | } | |
631 | ||
632 | /* | |
633 | * atkbd_disable() tells input handler that all incoming data except | |
634 | * for ACKs and command response should be dropped. | |
635 | */ | |
636 | ||
637 | static inline void atkbd_disable(struct atkbd *atkbd) | |
638 | { | |
639 | serio_pause_rx(atkbd->ps2dev.serio); | |
640 | atkbd->enabled = 0; | |
641 | serio_continue_rx(atkbd->ps2dev.serio); | |
642 | } | |
643 | ||
644 | /* | |
645 | * atkbd_probe() probes for an AT keyboard on a serio port. | |
646 | */ | |
647 | ||
648 | static int atkbd_probe(struct atkbd *atkbd) | |
649 | { | |
650 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
651 | unsigned char param[2]; | |
652 | ||
653 | /* | |
654 | * Some systems, where the bit-twiddling when testing the io-lines of the | |
655 | * controller may confuse the keyboard need a full reset of the keyboard. On | |
656 | * these systems the BIOS also usually doesn't do it for us. | |
657 | */ | |
658 | ||
659 | if (atkbd_reset) | |
660 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_RESET_BAT)) | |
661 | printk(KERN_WARNING "atkbd.c: keyboard reset failed on %s\n", ps2dev->serio->phys); | |
662 | ||
663 | /* | |
664 | * Then we check the keyboard ID. We should get 0xab83 under normal conditions. | |
665 | * Some keyboards report different values, but the first byte is always 0xab or | |
666 | * 0xac. Some old AT keyboards don't report anything. If a mouse is connected, this | |
667 | * should make sure we don't try to set the LEDs on it. | |
668 | */ | |
669 | ||
670 | param[0] = param[1] = 0xa5; /* initialize with invalid values */ | |
671 | if (ps2_command(ps2dev, param, ATKBD_CMD_GETID)) { | |
672 | ||
673 | /* | |
674 | * If the get ID command failed, we check if we can at least set the LEDs on | |
675 | * the keyboard. This should work on every keyboard out there. It also turns | |
676 | * the LEDs off, which we want anyway. | |
677 | */ | |
678 | param[0] = 0; | |
679 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) | |
680 | return -1; | |
681 | atkbd->id = 0xabba; | |
682 | return 0; | |
683 | } | |
684 | ||
9807879b | 685 | if (!ps2_is_keyboard_id(param[0])) |
1da177e4 LT |
686 | return -1; |
687 | ||
688 | atkbd->id = (param[0] << 8) | param[1]; | |
689 | ||
690 | if (atkbd->id == 0xaca1 && atkbd->translated) { | |
691 | printk(KERN_ERR "atkbd.c: NCD terminal keyboards are only supported on non-translating\n"); | |
692 | printk(KERN_ERR "atkbd.c: controllers. Use i8042.direct=1 to disable translation.\n"); | |
693 | return -1; | |
694 | } | |
695 | ||
696 | return 0; | |
697 | } | |
698 | ||
699 | /* | |
700 | * atkbd_select_set checks if a keyboard has a working Set 3 support, and | |
701 | * sets it into that. Unfortunately there are keyboards that can be switched | |
702 | * to Set 3, but don't work well in that (BTC Multimedia ...) | |
703 | */ | |
704 | ||
705 | static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra) | |
706 | { | |
707 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
708 | unsigned char param[2]; | |
709 | ||
710 | atkbd->extra = 0; | |
711 | /* | |
712 | * For known special keyboards we can go ahead and set the correct set. | |
713 | * We check for NCD PS/2 Sun, NorthGate OmniKey 101 and | |
714 | * IBM RapidAccess / IBM EzButton / Chicony KBP-8993 keyboards. | |
715 | */ | |
716 | ||
717 | if (atkbd->translated) | |
718 | return 2; | |
719 | ||
720 | if (atkbd->id == 0xaca1) { | |
721 | param[0] = 3; | |
722 | ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET); | |
723 | return 3; | |
724 | } | |
725 | ||
726 | if (allow_extra) { | |
727 | param[0] = 0x71; | |
728 | if (!ps2_command(ps2dev, param, ATKBD_CMD_EX_ENABLE)) { | |
729 | atkbd->extra = 1; | |
730 | return 2; | |
731 | } | |
732 | } | |
733 | ||
734 | if (target_set != 3) | |
735 | return 2; | |
736 | ||
737 | if (!ps2_command(ps2dev, param, ATKBD_CMD_OK_GETID)) { | |
738 | atkbd->id = param[0] << 8 | param[1]; | |
739 | return 2; | |
740 | } | |
741 | ||
742 | param[0] = 3; | |
743 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) | |
744 | return 2; | |
745 | ||
746 | param[0] = 0; | |
747 | if (ps2_command(ps2dev, param, ATKBD_CMD_GSCANSET)) | |
748 | return 2; | |
749 | ||
750 | if (param[0] != 3) { | |
751 | param[0] = 2; | |
752 | if (ps2_command(ps2dev, param, ATKBD_CMD_SSCANSET)) | |
753 | return 2; | |
754 | } | |
755 | ||
756 | ps2_command(ps2dev, param, ATKBD_CMD_SETALL_MBR); | |
757 | ||
758 | return 3; | |
759 | } | |
760 | ||
761 | static int atkbd_activate(struct atkbd *atkbd) | |
762 | { | |
763 | struct ps2dev *ps2dev = &atkbd->ps2dev; | |
764 | unsigned char param[1]; | |
765 | ||
766 | /* | |
767 | * Set the LEDs to a defined state. | |
768 | */ | |
769 | ||
770 | param[0] = 0; | |
771 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS)) | |
772 | return -1; | |
773 | ||
774 | /* | |
775 | * Set autorepeat to fastest possible. | |
776 | */ | |
777 | ||
778 | param[0] = 0; | |
779 | if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP)) | |
780 | return -1; | |
781 | ||
782 | /* | |
783 | * Enable the keyboard to receive keystrokes. | |
784 | */ | |
785 | ||
786 | if (ps2_command(ps2dev, NULL, ATKBD_CMD_ENABLE)) { | |
787 | printk(KERN_ERR "atkbd.c: Failed to enable keyboard on %s\n", | |
788 | ps2dev->serio->phys); | |
789 | return -1; | |
790 | } | |
791 | ||
792 | return 0; | |
793 | } | |
794 | ||
795 | /* | |
796 | * atkbd_cleanup() restores the keyboard state so that BIOS is happy after a | |
797 | * reboot. | |
798 | */ | |
799 | ||
800 | static void atkbd_cleanup(struct serio *serio) | |
801 | { | |
802 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
803 | ps2_command(&atkbd->ps2dev, NULL, ATKBD_CMD_RESET_BAT); | |
804 | } | |
805 | ||
806 | ||
807 | /* | |
808 | * atkbd_disconnect() closes and frees. | |
809 | */ | |
810 | ||
811 | static void atkbd_disconnect(struct serio *serio) | |
812 | { | |
813 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
814 | ||
815 | atkbd_disable(atkbd); | |
816 | ||
817 | /* make sure we don't have a command in flight */ | |
fbd568a3 | 818 | synchronize_sched(); /* Allow atkbd_interrupt()s to complete. */ |
1da177e4 LT |
819 | flush_scheduled_work(); |
820 | ||
86255d9d | 821 | sysfs_remove_group(&serio->dev.kobj, &atkbd_attribute_group); |
3c42f0c3 | 822 | input_unregister_device(atkbd->dev); |
1da177e4 LT |
823 | serio_close(serio); |
824 | serio_set_drvdata(serio, NULL); | |
825 | kfree(atkbd); | |
826 | } | |
827 | ||
828 | ||
829 | /* | |
3c42f0c3 | 830 | * atkbd_set_keycode_table() initializes keyboard's keycode table |
1da177e4 LT |
831 | * according to the selected scancode set |
832 | */ | |
833 | ||
834 | static void atkbd_set_keycode_table(struct atkbd *atkbd) | |
835 | { | |
836 | int i, j; | |
837 | ||
838 | memset(atkbd->keycode, 0, sizeof(atkbd->keycode)); | |
839 | ||
840 | if (atkbd->translated) { | |
841 | for (i = 0; i < 128; i++) { | |
842 | atkbd->keycode[i] = atkbd_set2_keycode[atkbd_unxlate_table[i]]; | |
843 | atkbd->keycode[i | 0x80] = atkbd_set2_keycode[atkbd_unxlate_table[i] | 0x80]; | |
844 | if (atkbd->scroll) | |
845 | for (j = 0; j < ARRAY_SIZE(atkbd_scroll_keys); j++) | |
846 | if ((atkbd_unxlate_table[i] | 0x80) == atkbd_scroll_keys[j].set2) | |
847 | atkbd->keycode[i | 0x80] = atkbd_scroll_keys[j].keycode; | |
848 | } | |
849 | } else if (atkbd->set == 3) { | |
850 | memcpy(atkbd->keycode, atkbd_set3_keycode, sizeof(atkbd->keycode)); | |
851 | } else { | |
852 | memcpy(atkbd->keycode, atkbd_set2_keycode, sizeof(atkbd->keycode)); | |
853 | ||
854 | if (atkbd->scroll) | |
855 | for (i = 0; i < ARRAY_SIZE(atkbd_scroll_keys); i++) | |
856 | atkbd->keycode[atkbd_scroll_keys[i].set2] = atkbd_scroll_keys[i].keycode; | |
857 | } | |
0ae051a1 DT |
858 | |
859 | atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANGEUL)] = KEY_HANGUEL; | |
860 | atkbd->keycode[atkbd_compat_scancode(atkbd, ATKBD_RET_HANJA)] = KEY_HANJA; | |
1da177e4 LT |
861 | } |
862 | ||
863 | /* | |
864 | * atkbd_set_device_attrs() sets up keyboard's input device structure | |
865 | */ | |
866 | ||
867 | static void atkbd_set_device_attrs(struct atkbd *atkbd) | |
868 | { | |
3c42f0c3 | 869 | struct input_dev *input_dev = atkbd->dev; |
1da177e4 LT |
870 | int i; |
871 | ||
3c42f0c3 | 872 | if (atkbd->extra) |
ea08c6fa DT |
873 | snprintf(atkbd->name, sizeof(atkbd->name), |
874 | "AT Set 2 Extra keyboard"); | |
3c42f0c3 | 875 | else |
ea08c6fa DT |
876 | snprintf(atkbd->name, sizeof(atkbd->name), |
877 | "AT %s Set %d keyboard", | |
878 | atkbd->translated ? "Translated" : "Raw", atkbd->set); | |
1da177e4 | 879 | |
ea08c6fa DT |
880 | snprintf(atkbd->phys, sizeof(atkbd->phys), |
881 | "%s/input0", atkbd->ps2dev.serio->phys); | |
1da177e4 | 882 | |
3c42f0c3 DT |
883 | input_dev->name = atkbd->name; |
884 | input_dev->phys = atkbd->phys; | |
885 | input_dev->id.bustype = BUS_I8042; | |
886 | input_dev->id.vendor = 0x0001; | |
887 | input_dev->id.product = atkbd->translated ? 1 : atkbd->set; | |
888 | input_dev->id.version = atkbd->id; | |
889 | input_dev->event = atkbd_event; | |
890 | input_dev->private = atkbd; | |
891 | input_dev->cdev.dev = &atkbd->ps2dev.serio->dev; | |
1da177e4 | 892 | |
3c42f0c3 | 893 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP) | BIT(EV_MSC); |
1da177e4 LT |
894 | |
895 | if (atkbd->write) { | |
3c42f0c3 DT |
896 | input_dev->evbit[0] |= BIT(EV_LED); |
897 | input_dev->ledbit[0] = BIT(LED_NUML) | BIT(LED_CAPSL) | BIT(LED_SCROLLL); | |
1da177e4 LT |
898 | } |
899 | ||
900 | if (atkbd->extra) | |
3c42f0c3 | 901 | input_dev->ledbit[0] |= BIT(LED_COMPOSE) | BIT(LED_SUSPEND) | |
1da177e4 LT |
902 | BIT(LED_SLEEP) | BIT(LED_MUTE) | BIT(LED_MISC); |
903 | ||
904 | if (!atkbd->softrepeat) { | |
3c42f0c3 DT |
905 | input_dev->rep[REP_DELAY] = 250; |
906 | input_dev->rep[REP_PERIOD] = 33; | |
1da177e4 LT |
907 | } |
908 | ||
3c42f0c3 | 909 | input_dev->mscbit[0] = atkbd->softraw ? BIT(MSC_SCAN) : BIT(MSC_RAW) | BIT(MSC_SCAN); |
1da177e4 LT |
910 | |
911 | if (atkbd->scroll) { | |
3c42f0c3 DT |
912 | input_dev->evbit[0] |= BIT(EV_REL); |
913 | input_dev->relbit[0] = BIT(REL_WHEEL) | BIT(REL_HWHEEL); | |
914 | set_bit(BTN_MIDDLE, input_dev->keybit); | |
1da177e4 LT |
915 | } |
916 | ||
3c42f0c3 DT |
917 | input_dev->keycode = atkbd->keycode; |
918 | input_dev->keycodesize = sizeof(unsigned char); | |
919 | input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode); | |
1da177e4 LT |
920 | |
921 | for (i = 0; i < 512; i++) | |
922 | if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL) | |
3c42f0c3 | 923 | set_bit(atkbd->keycode[i], input_dev->keybit); |
1da177e4 LT |
924 | } |
925 | ||
926 | /* | |
927 | * atkbd_connect() is called when the serio module finds an interface | |
928 | * that isn't handled yet by an appropriate device driver. We check if | |
929 | * there is an AT keyboard out there and if yes, we register ourselves | |
930 | * to the input module. | |
931 | */ | |
932 | ||
933 | static int atkbd_connect(struct serio *serio, struct serio_driver *drv) | |
934 | { | |
935 | struct atkbd *atkbd; | |
3c42f0c3 DT |
936 | struct input_dev *dev; |
937 | int err = -ENOMEM; | |
1da177e4 | 938 | |
3c42f0c3 DT |
939 | atkbd = kzalloc(sizeof(struct atkbd), GFP_KERNEL); |
940 | dev = input_allocate_device(); | |
941 | if (!atkbd || !dev) | |
942 | goto fail; | |
1da177e4 | 943 | |
3c42f0c3 | 944 | atkbd->dev = dev; |
1da177e4 | 945 | ps2_init(&atkbd->ps2dev, serio); |
0d4c8597 | 946 | INIT_WORK(&atkbd->event_work, atkbd_event_work, atkbd); |
33d3f07a | 947 | mutex_init(&atkbd->event_mutex); |
1da177e4 LT |
948 | |
949 | switch (serio->id.type) { | |
950 | ||
951 | case SERIO_8042_XL: | |
952 | atkbd->translated = 1; | |
953 | case SERIO_8042: | |
954 | if (serio->write) | |
955 | atkbd->write = 1; | |
956 | break; | |
957 | } | |
958 | ||
959 | atkbd->softraw = atkbd_softraw; | |
960 | atkbd->softrepeat = atkbd_softrepeat; | |
961 | atkbd->scroll = atkbd_scroll; | |
962 | ||
1da177e4 LT |
963 | if (atkbd->softrepeat) |
964 | atkbd->softraw = 1; | |
965 | ||
966 | serio_set_drvdata(serio, atkbd); | |
967 | ||
968 | err = serio_open(serio, drv); | |
3c42f0c3 DT |
969 | if (err) |
970 | goto fail; | |
1da177e4 LT |
971 | |
972 | if (atkbd->write) { | |
973 | ||
974 | if (atkbd_probe(atkbd)) { | |
975 | serio_close(serio); | |
3c42f0c3 DT |
976 | err = -ENODEV; |
977 | goto fail; | |
1da177e4 LT |
978 | } |
979 | ||
980 | atkbd->set = atkbd_select_set(atkbd, atkbd_set, atkbd_extra); | |
981 | atkbd_activate(atkbd); | |
982 | ||
983 | } else { | |
984 | atkbd->set = 2; | |
985 | atkbd->id = 0xab00; | |
986 | } | |
987 | ||
1da177e4 LT |
988 | atkbd_set_keycode_table(atkbd); |
989 | atkbd_set_device_attrs(atkbd); | |
990 | ||
86255d9d | 991 | sysfs_create_group(&serio->dev.kobj, &atkbd_attribute_group); |
1da177e4 LT |
992 | |
993 | atkbd_enable(atkbd); | |
994 | ||
3c42f0c3 | 995 | input_register_device(atkbd->dev); |
1da177e4 LT |
996 | |
997 | return 0; | |
3c42f0c3 DT |
998 | |
999 | fail: serio_set_drvdata(serio, NULL); | |
1000 | input_free_device(dev); | |
1001 | kfree(atkbd); | |
1002 | return err; | |
1da177e4 LT |
1003 | } |
1004 | ||
1005 | /* | |
1006 | * atkbd_reconnect() tries to restore keyboard into a sane state and is | |
1007 | * most likely called on resume. | |
1008 | */ | |
1009 | ||
1010 | static int atkbd_reconnect(struct serio *serio) | |
1011 | { | |
1012 | struct atkbd *atkbd = serio_get_drvdata(serio); | |
1013 | struct serio_driver *drv = serio->drv; | |
1da177e4 LT |
1014 | |
1015 | if (!atkbd || !drv) { | |
1016 | printk(KERN_DEBUG "atkbd: reconnect request, but serio is disconnected, ignoring...\n"); | |
1017 | return -1; | |
1018 | } | |
1019 | ||
1020 | atkbd_disable(atkbd); | |
1021 | ||
1022 | if (atkbd->write) { | |
1da177e4 LT |
1023 | if (atkbd_probe(atkbd)) |
1024 | return -1; | |
1025 | if (atkbd->set != atkbd_select_set(atkbd, atkbd->set, atkbd->extra)) | |
1026 | return -1; | |
1027 | ||
1028 | atkbd_activate(atkbd); | |
1029 | ||
3d0f0fa0 DT |
1030 | /* |
1031 | * Restore repeat rate and LEDs (that were reset by atkbd_activate) | |
1032 | * to pre-resume state | |
1033 | */ | |
1034 | if (!atkbd->softrepeat) | |
1035 | atkbd_set_repeat_rate(atkbd); | |
1036 | atkbd_set_leds(atkbd); | |
1da177e4 LT |
1037 | } |
1038 | ||
1039 | atkbd_enable(atkbd); | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
1044 | static struct serio_device_id atkbd_serio_ids[] = { | |
1045 | { | |
1046 | .type = SERIO_8042, | |
1047 | .proto = SERIO_ANY, | |
1048 | .id = SERIO_ANY, | |
1049 | .extra = SERIO_ANY, | |
1050 | }, | |
1051 | { | |
1052 | .type = SERIO_8042_XL, | |
1053 | .proto = SERIO_ANY, | |
1054 | .id = SERIO_ANY, | |
1055 | .extra = SERIO_ANY, | |
1056 | }, | |
1057 | { | |
1058 | .type = SERIO_RS232, | |
1059 | .proto = SERIO_PS2SER, | |
1060 | .id = SERIO_ANY, | |
1061 | .extra = SERIO_ANY, | |
1062 | }, | |
1063 | { 0 } | |
1064 | }; | |
1065 | ||
1066 | MODULE_DEVICE_TABLE(serio, atkbd_serio_ids); | |
1067 | ||
1068 | static struct serio_driver atkbd_drv = { | |
1069 | .driver = { | |
1070 | .name = "atkbd", | |
1071 | }, | |
1072 | .description = DRIVER_DESC, | |
1073 | .id_table = atkbd_serio_ids, | |
1074 | .interrupt = atkbd_interrupt, | |
1075 | .connect = atkbd_connect, | |
1076 | .reconnect = atkbd_reconnect, | |
1077 | .disconnect = atkbd_disconnect, | |
1078 | .cleanup = atkbd_cleanup, | |
1079 | }; | |
1080 | ||
1081 | static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, | |
1082 | ssize_t (*handler)(struct atkbd *, char *)) | |
1083 | { | |
1084 | struct serio *serio = to_serio_port(dev); | |
1085 | int retval; | |
1086 | ||
1087 | retval = serio_pin_driver(serio); | |
1088 | if (retval) | |
1089 | return retval; | |
1090 | ||
1091 | if (serio->drv != &atkbd_drv) { | |
1092 | retval = -ENODEV; | |
1093 | goto out; | |
1094 | } | |
1095 | ||
1096 | retval = handler((struct atkbd *)serio_get_drvdata(serio), buf); | |
1097 | ||
1098 | out: | |
1099 | serio_unpin_driver(serio); | |
1100 | return retval; | |
1101 | } | |
1102 | ||
1103 | static ssize_t atkbd_attr_set_helper(struct device *dev, const char *buf, size_t count, | |
1104 | ssize_t (*handler)(struct atkbd *, const char *, size_t)) | |
1105 | { | |
1106 | struct serio *serio = to_serio_port(dev); | |
1107 | struct atkbd *atkbd; | |
1108 | int retval; | |
1109 | ||
1110 | retval = serio_pin_driver(serio); | |
1111 | if (retval) | |
1112 | return retval; | |
1113 | ||
1114 | if (serio->drv != &atkbd_drv) { | |
1115 | retval = -ENODEV; | |
1116 | goto out; | |
1117 | } | |
1118 | ||
1119 | atkbd = serio_get_drvdata(serio); | |
1120 | atkbd_disable(atkbd); | |
1121 | retval = handler(atkbd, buf, count); | |
1122 | atkbd_enable(atkbd); | |
1123 | ||
1124 | out: | |
1125 | serio_unpin_driver(serio); | |
1126 | return retval; | |
1127 | } | |
1128 | ||
1129 | static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf) | |
1130 | { | |
1131 | return sprintf(buf, "%d\n", atkbd->extra ? 1 : 0); | |
1132 | } | |
1133 | ||
1134 | static ssize_t atkbd_set_extra(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 | if (!atkbd->write) | |
1141 | return -EIO; | |
1142 | ||
1143 | value = simple_strtoul(buf, &rest, 10); | |
1144 | if (*rest || value > 1) | |
1145 | return -EINVAL; | |
1146 | ||
1147 | if (atkbd->extra != value) { | |
3c42f0c3 DT |
1148 | /* |
1149 | * Since device's properties will change we need to | |
1150 | * unregister old device. But allocate new one first | |
1151 | * to make sure we have it. | |
1152 | */ | |
1153 | if (!(new_dev = input_allocate_device())) | |
1154 | return -ENOMEM; | |
1155 | input_unregister_device(atkbd->dev); | |
1156 | atkbd->dev = new_dev; | |
1da177e4 LT |
1157 | atkbd->set = atkbd_select_set(atkbd, atkbd->set, value); |
1158 | atkbd_activate(atkbd); | |
1159 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1160 | input_register_device(atkbd->dev); |
1da177e4 LT |
1161 | } |
1162 | return count; | |
1163 | } | |
1164 | ||
1165 | static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf) | |
1166 | { | |
1167 | return sprintf(buf, "%d\n", atkbd->scroll ? 1 : 0); | |
1168 | } | |
1169 | ||
1170 | static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count) | |
1171 | { | |
3c42f0c3 | 1172 | struct input_dev *new_dev; |
1da177e4 LT |
1173 | unsigned long value; |
1174 | char *rest; | |
1175 | ||
1176 | value = simple_strtoul(buf, &rest, 10); | |
1177 | if (*rest || value > 1) | |
1178 | return -EINVAL; | |
1179 | ||
1180 | if (atkbd->scroll != value) { | |
3c42f0c3 DT |
1181 | if (!(new_dev = input_allocate_device())) |
1182 | return -ENOMEM; | |
1183 | input_unregister_device(atkbd->dev); | |
1184 | atkbd->dev = new_dev; | |
1da177e4 LT |
1185 | atkbd->scroll = value; |
1186 | atkbd_set_keycode_table(atkbd); | |
1187 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1188 | input_register_device(atkbd->dev); |
1da177e4 LT |
1189 | } |
1190 | return count; | |
1191 | } | |
1192 | ||
1193 | static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf) | |
1194 | { | |
1195 | return sprintf(buf, "%d\n", atkbd->set); | |
1196 | } | |
1197 | ||
1198 | static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count) | |
1199 | { | |
3c42f0c3 | 1200 | struct input_dev *new_dev; |
1da177e4 LT |
1201 | unsigned long value; |
1202 | char *rest; | |
1203 | ||
1204 | if (!atkbd->write) | |
1205 | return -EIO; | |
1206 | ||
1207 | value = simple_strtoul(buf, &rest, 10); | |
1208 | if (*rest || (value != 2 && value != 3)) | |
1209 | return -EINVAL; | |
1210 | ||
1211 | if (atkbd->set != value) { | |
3c42f0c3 DT |
1212 | if (!(new_dev = input_allocate_device())) |
1213 | return -ENOMEM; | |
1214 | input_unregister_device(atkbd->dev); | |
1215 | atkbd->dev = new_dev; | |
1da177e4 LT |
1216 | atkbd->set = atkbd_select_set(atkbd, value, atkbd->extra); |
1217 | atkbd_activate(atkbd); | |
1218 | atkbd_set_keycode_table(atkbd); | |
1219 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1220 | input_register_device(atkbd->dev); |
1da177e4 LT |
1221 | } |
1222 | return count; | |
1223 | } | |
1224 | ||
1225 | static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf) | |
1226 | { | |
1227 | return sprintf(buf, "%d\n", atkbd->softrepeat ? 1 : 0); | |
1228 | } | |
1229 | ||
1230 | static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count) | |
1231 | { | |
3c42f0c3 | 1232 | struct input_dev *new_dev; |
1da177e4 LT |
1233 | unsigned long value; |
1234 | char *rest; | |
1235 | ||
1236 | if (!atkbd->write) | |
1237 | return -EIO; | |
1238 | ||
1239 | value = simple_strtoul(buf, &rest, 10); | |
1240 | if (*rest || value > 1) | |
1241 | return -EINVAL; | |
1242 | ||
1243 | if (atkbd->softrepeat != value) { | |
3c42f0c3 DT |
1244 | if (!(new_dev = input_allocate_device())) |
1245 | return -ENOMEM; | |
1246 | input_unregister_device(atkbd->dev); | |
1247 | atkbd->dev = new_dev; | |
1da177e4 LT |
1248 | atkbd->softrepeat = value; |
1249 | if (atkbd->softrepeat) | |
1250 | atkbd->softraw = 1; | |
1251 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1252 | input_register_device(atkbd->dev); |
1da177e4 | 1253 | } |
1da177e4 LT |
1254 | return count; |
1255 | } | |
1256 | ||
1257 | ||
1258 | static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf) | |
1259 | { | |
1260 | return sprintf(buf, "%d\n", atkbd->softraw ? 1 : 0); | |
1261 | } | |
1262 | ||
1263 | static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count) | |
1264 | { | |
3c42f0c3 | 1265 | struct input_dev *new_dev; |
1da177e4 LT |
1266 | unsigned long value; |
1267 | char *rest; | |
1268 | ||
1269 | value = simple_strtoul(buf, &rest, 10); | |
1270 | if (*rest || value > 1) | |
1271 | return -EINVAL; | |
1272 | ||
1273 | if (atkbd->softraw != value) { | |
3c42f0c3 DT |
1274 | if (!(new_dev = input_allocate_device())) |
1275 | return -ENOMEM; | |
1276 | input_unregister_device(atkbd->dev); | |
1277 | atkbd->dev = new_dev; | |
1da177e4 LT |
1278 | atkbd->softraw = value; |
1279 | atkbd_set_device_attrs(atkbd); | |
3c42f0c3 | 1280 | input_register_device(atkbd->dev); |
1da177e4 LT |
1281 | } |
1282 | return count; | |
1283 | } | |
1284 | ||
86255d9d DT |
1285 | static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf) |
1286 | { | |
1287 | return sprintf(buf, "%lu\n", atkbd->err_count); | |
1288 | } | |
1289 | ||
1da177e4 LT |
1290 | |
1291 | static int __init atkbd_init(void) | |
1292 | { | |
1293 | serio_register_driver(&atkbd_drv); | |
1294 | return 0; | |
1295 | } | |
1296 | ||
1297 | static void __exit atkbd_exit(void) | |
1298 | { | |
1299 | serio_unregister_driver(&atkbd_drv); | |
1300 | } | |
1301 | ||
1302 | module_init(atkbd_init); | |
1303 | module_exit(atkbd_exit); |