Version:  2.6.34 2.6.35 2.6.36 2.6.37 2.6.38 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14

Linux/drivers/input/misc/wistron_btns.c

  1 /*
  2  * Wistron laptop button driver
  3  * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz>
  4  * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org>
  5  * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru>
  6  *
  7  * You can redistribute and/or modify this program under the terms of the
  8  * GNU General Public License version 2 as published by the Free Software
  9  * Foundation.
 10  *
 11  * This program is distributed in the hope that it will be useful, but
 12  * WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 14  * Public License for more details.
 15  *
 16  * You should have received a copy of the GNU General Public License along
 17  * with this program; if not, write to the Free Software Foundation, Inc.,
 18  * 59 Temple Place Suite 330, Boston, MA 02111-1307, USA.
 19  */
 20 #include <linux/io.h>
 21 #include <linux/dmi.h>
 22 #include <linux/init.h>
 23 #include <linux/input-polldev.h>
 24 #include <linux/input/sparse-keymap.h>
 25 #include <linux/interrupt.h>
 26 #include <linux/jiffies.h>
 27 #include <linux/kernel.h>
 28 #include <linux/mc146818rtc.h>
 29 #include <linux/module.h>
 30 #include <linux/preempt.h>
 31 #include <linux/string.h>
 32 #include <linux/slab.h>
 33 #include <linux/types.h>
 34 #include <linux/platform_device.h>
 35 #include <linux/leds.h>
 36 
 37 /* How often we poll keys - msecs */
 38 #define POLL_INTERVAL_DEFAULT   500 /* when idle */
 39 #define POLL_INTERVAL_BURST     100 /* when a key was recently pressed */
 40 
 41 /* BIOS subsystem IDs */
 42 #define WIFI            0x35
 43 #define BLUETOOTH       0x34
 44 #define MAIL_LED        0x31
 45 
 46 MODULE_AUTHOR("Miloslav Trmac <mitr@volny.cz>");
 47 MODULE_DESCRIPTION("Wistron laptop button driver");
 48 MODULE_LICENSE("GPL v2");
 49 
 50 static bool force; /* = 0; */
 51 module_param(force, bool, 0);
 52 MODULE_PARM_DESC(force, "Load even if computer is not in database");
 53 
 54 static char *keymap_name; /* = NULL; */
 55 module_param_named(keymap, keymap_name, charp, 0);
 56 MODULE_PARM_DESC(keymap, "Keymap name, if it can't be autodetected [generic, 1557/MS2141]");
 57 
 58 static struct platform_device *wistron_device;
 59 
 60  /* BIOS interface implementation */
 61 
 62 static void __iomem *bios_entry_point; /* BIOS routine entry point */
 63 static void __iomem *bios_code_map_base;
 64 static void __iomem *bios_data_map_base;
 65 
 66 static u8 cmos_address;
 67 
 68 struct regs {
 69         u32 eax, ebx, ecx;
 70 };
 71 
 72 static void call_bios(struct regs *regs)
 73 {
 74         unsigned long flags;
 75 
 76         preempt_disable();
 77         local_irq_save(flags);
 78         asm volatile ("pushl %%ebp;"
 79                       "movl %7, %%ebp;"
 80                       "call *%6;"
 81                       "popl %%ebp"
 82                       : "=a" (regs->eax), "=b" (regs->ebx), "=c" (regs->ecx)
 83                       : "" (regs->eax), "1" (regs->ebx), "2" (regs->ecx),
 84                         "m" (bios_entry_point), "m" (bios_data_map_base)
 85                       : "edx", "edi", "esi", "memory");
 86         local_irq_restore(flags);
 87         preempt_enable();
 88 }
 89 
 90 static ssize_t __init locate_wistron_bios(void __iomem *base)
 91 {
 92         static unsigned char __initdata signature[] =
 93                 { 0x42, 0x21, 0x55, 0x30 };
 94         ssize_t offset;
 95 
 96         for (offset = 0; offset < 0x10000; offset += 0x10) {
 97                 if (check_signature(base + offset, signature,
 98                                     sizeof(signature)) != 0)
 99                         return offset;
100         }
101         return -1;
102 }
103 
104 static int __init map_bios(void)
105 {
106         void __iomem *base;
107         ssize_t offset;
108         u32 entry_point;
109 
110         base = ioremap(0xF0000, 0x10000); /* Can't fail */
111         offset = locate_wistron_bios(base);
112         if (offset < 0) {
113                 printk(KERN_ERR "wistron_btns: BIOS entry point not found\n");
114                 iounmap(base);
115                 return -ENODEV;
116         }
117 
118         entry_point = readl(base + offset + 5);
119         printk(KERN_DEBUG
120                 "wistron_btns: BIOS signature found at %p, entry point %08X\n",
121                 base + offset, entry_point);
122 
123         if (entry_point >= 0xF0000) {
124                 bios_code_map_base = base;
125                 bios_entry_point = bios_code_map_base + (entry_point & 0xFFFF);
126         } else {
127                 iounmap(base);
128                 bios_code_map_base = ioremap(entry_point & ~0x3FFF, 0x4000);
129                 if (bios_code_map_base == NULL) {
130                         printk(KERN_ERR
131                                 "wistron_btns: Can't map BIOS code at %08X\n",
132                                 entry_point & ~0x3FFF);
133                         goto err;
134                 }
135                 bios_entry_point = bios_code_map_base + (entry_point & 0x3FFF);
136         }
137         /* The Windows driver maps 0x10000 bytes, we keep only one page... */
138         bios_data_map_base = ioremap(0x400, 0xc00);
139         if (bios_data_map_base == NULL) {
140                 printk(KERN_ERR "wistron_btns: Can't map BIOS data\n");
141                 goto err_code;
142         }
143         return 0;
144 
145 err_code:
146         iounmap(bios_code_map_base);
147 err:
148         return -ENOMEM;
149 }
150 
151 static inline void unmap_bios(void)
152 {
153         iounmap(bios_code_map_base);
154         iounmap(bios_data_map_base);
155 }
156 
157  /* BIOS calls */
158 
159 static u16 bios_pop_queue(void)
160 {
161         struct regs regs;
162 
163         memset(&regs, 0, sizeof (regs));
164         regs.eax = 0x9610;
165         regs.ebx = 0x061C;
166         regs.ecx = 0x0000;
167         call_bios(&regs);
168 
169         return regs.eax;
170 }
171 
172 static void bios_attach(void)
173 {
174         struct regs regs;
175 
176         memset(&regs, 0, sizeof (regs));
177         regs.eax = 0x9610;
178         regs.ebx = 0x012E;
179         call_bios(&regs);
180 }
181 
182 static void bios_detach(void)
183 {
184         struct regs regs;
185 
186         memset(&regs, 0, sizeof (regs));
187         regs.eax = 0x9610;
188         regs.ebx = 0x002E;
189         call_bios(&regs);
190 }
191 
192 static u8 bios_get_cmos_address(void)
193 {
194         struct regs regs;
195 
196         memset(&regs, 0, sizeof (regs));
197         regs.eax = 0x9610;
198         regs.ebx = 0x051C;
199         call_bios(&regs);
200 
201         return regs.ecx;
202 }
203 
204 static u16 bios_get_default_setting(u8 subsys)
205 {
206         struct regs regs;
207 
208         memset(&regs, 0, sizeof (regs));
209         regs.eax = 0x9610;
210         regs.ebx = 0x0200 | subsys;
211         call_bios(&regs);
212 
213         return regs.eax;
214 }
215 
216 static void bios_set_state(u8 subsys, int enable)
217 {
218         struct regs regs;
219 
220         memset(&regs, 0, sizeof (regs));
221         regs.eax = 0x9610;
222         regs.ebx = (enable ? 0x0100 : 0x0000) | subsys;
223         call_bios(&regs);
224 }
225 
226 /* Hardware database */
227 
228 #define KE_WIFI         (KE_LAST + 1)
229 #define KE_BLUETOOTH    (KE_LAST + 2)
230 
231 #define FE_MAIL_LED 0x01
232 #define FE_WIFI_LED 0x02
233 #define FE_UNTESTED 0x80
234 
235 static struct key_entry *keymap; /* = NULL; Current key map */
236 static bool have_wifi;
237 static bool have_bluetooth;
238 static int leds_present;        /* bitmask of leds present */
239 
240 static int __init dmi_matched(const struct dmi_system_id *dmi)
241 {
242         const struct key_entry *key;
243 
244         keymap = dmi->driver_data;
245         for (key = keymap; key->type != KE_END; key++) {
246                 if (key->type == KE_WIFI)
247                         have_wifi = true;
248                 else if (key->type == KE_BLUETOOTH)
249                         have_bluetooth = true;
250         }
251         leds_present = key->code & (FE_MAIL_LED | FE_WIFI_LED);
252 
253         return 1;
254 }
255 
256 static struct key_entry keymap_empty[] __initdata = {
257         { KE_END, 0 }
258 };
259 
260 static struct key_entry keymap_fs_amilo_pro_v2000[] __initdata = {
261         { KE_KEY,  0x01, {KEY_HELP} },
262         { KE_KEY,  0x11, {KEY_PROG1} },
263         { KE_KEY,  0x12, {KEY_PROG2} },
264         { KE_WIFI, 0x30 },
265         { KE_KEY,  0x31, {KEY_MAIL} },
266         { KE_KEY,  0x36, {KEY_WWW} },
267         { KE_END,  0 }
268 };
269 
270 static struct key_entry keymap_fs_amilo_pro_v3505[] __initdata = {
271         { KE_KEY,       0x01, {KEY_HELP} },          /* Fn+F1 */
272         { KE_KEY,       0x06, {KEY_DISPLAYTOGGLE} }, /* Fn+F4 */
273         { KE_BLUETOOTH, 0x30 },                      /* Fn+F10 */
274         { KE_KEY,       0x31, {KEY_MAIL} },          /* mail button */
275         { KE_KEY,       0x36, {KEY_WWW} },           /* www button */
276         { KE_WIFI,      0x78 },                      /* satellite dish button */
277         { KE_END,       0 }
278 };
279 
280 static struct key_entry keymap_fujitsu_n3510[] __initdata = {
281         { KE_KEY, 0x11, {KEY_PROG1} },
282         { KE_KEY, 0x12, {KEY_PROG2} },
283         { KE_KEY, 0x36, {KEY_WWW} },
284         { KE_KEY, 0x31, {KEY_MAIL} },
285         { KE_KEY, 0x71, {KEY_STOPCD} },
286         { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
287         { KE_KEY, 0x74, {KEY_REWIND} },
288         { KE_KEY, 0x78, {KEY_FORWARD} },
289         { KE_END, 0 }
290 };
291 
292 static struct key_entry keymap_wistron_ms2111[] __initdata = {
293         { KE_KEY,  0x11, {KEY_PROG1} },
294         { KE_KEY,  0x12, {KEY_PROG2} },
295         { KE_KEY,  0x13, {KEY_PROG3} },
296         { KE_KEY,  0x31, {KEY_MAIL} },
297         { KE_KEY,  0x36, {KEY_WWW} },
298         { KE_END, FE_MAIL_LED }
299 };
300 
301 static struct key_entry keymap_wistron_md40100[] __initdata = {
302         { KE_KEY, 0x01, {KEY_HELP} },
303         { KE_KEY, 0x02, {KEY_CONFIG} },
304         { KE_KEY, 0x31, {KEY_MAIL} },
305         { KE_KEY, 0x36, {KEY_WWW} },
306         { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
307         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
308 };
309 
310 static struct key_entry keymap_wistron_ms2141[] __initdata = {
311         { KE_KEY,  0x11, {KEY_PROG1} },
312         { KE_KEY,  0x12, {KEY_PROG2} },
313         { KE_WIFI, 0x30 },
314         { KE_KEY,  0x22, {KEY_REWIND} },
315         { KE_KEY,  0x23, {KEY_FORWARD} },
316         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
317         { KE_KEY,  0x25, {KEY_STOPCD} },
318         { KE_KEY,  0x31, {KEY_MAIL} },
319         { KE_KEY,  0x36, {KEY_WWW} },
320         { KE_END,  0 }
321 };
322 
323 static struct key_entry keymap_acer_aspire_1500[] __initdata = {
324         { KE_KEY, 0x01, {KEY_HELP} },
325         { KE_KEY, 0x03, {KEY_POWER} },
326         { KE_KEY, 0x11, {KEY_PROG1} },
327         { KE_KEY, 0x12, {KEY_PROG2} },
328         { KE_WIFI, 0x30 },
329         { KE_KEY, 0x31, {KEY_MAIL} },
330         { KE_KEY, 0x36, {KEY_WWW} },
331         { KE_KEY, 0x49, {KEY_CONFIG} },
332         { KE_BLUETOOTH, 0x44 },
333         { KE_END, FE_UNTESTED }
334 };
335 
336 static struct key_entry keymap_acer_aspire_1600[] __initdata = {
337         { KE_KEY, 0x01, {KEY_HELP} },
338         { KE_KEY, 0x03, {KEY_POWER} },
339         { KE_KEY, 0x08, {KEY_MUTE} },
340         { KE_KEY, 0x11, {KEY_PROG1} },
341         { KE_KEY, 0x12, {KEY_PROG2} },
342         { KE_KEY, 0x13, {KEY_PROG3} },
343         { KE_KEY, 0x31, {KEY_MAIL} },
344         { KE_KEY, 0x36, {KEY_WWW} },
345         { KE_KEY, 0x49, {KEY_CONFIG} },
346         { KE_WIFI, 0x30 },
347         { KE_BLUETOOTH, 0x44 },
348         { KE_END, FE_MAIL_LED | FE_UNTESTED }
349 };
350 
351 /* 3020 has been tested */
352 static struct key_entry keymap_acer_aspire_5020[] __initdata = {
353         { KE_KEY, 0x01, {KEY_HELP} },
354         { KE_KEY, 0x03, {KEY_POWER} },
355         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
356         { KE_KEY, 0x11, {KEY_PROG1} },
357         { KE_KEY, 0x12, {KEY_PROG2} },
358         { KE_KEY, 0x31, {KEY_MAIL} },
359         { KE_KEY, 0x36, {KEY_WWW} },
360         { KE_KEY, 0x6a, {KEY_CONFIG} },
361         { KE_WIFI, 0x30 },
362         { KE_BLUETOOTH, 0x44 },
363         { KE_END, FE_MAIL_LED | FE_UNTESTED }
364 };
365 
366 static struct key_entry keymap_acer_travelmate_2410[] __initdata = {
367         { KE_KEY, 0x01, {KEY_HELP} },
368         { KE_KEY, 0x6d, {KEY_POWER} },
369         { KE_KEY, 0x11, {KEY_PROG1} },
370         { KE_KEY, 0x12, {KEY_PROG2} },
371         { KE_KEY, 0x31, {KEY_MAIL} },
372         { KE_KEY, 0x36, {KEY_WWW} },
373         { KE_KEY, 0x6a, {KEY_CONFIG} },
374         { KE_WIFI, 0x30 },
375         { KE_BLUETOOTH, 0x44 },
376         { KE_END, FE_MAIL_LED | FE_UNTESTED }
377 };
378 
379 static struct key_entry keymap_acer_travelmate_110[] __initdata = {
380         { KE_KEY, 0x01, {KEY_HELP} },
381         { KE_KEY, 0x02, {KEY_CONFIG} },
382         { KE_KEY, 0x03, {KEY_POWER} },
383         { KE_KEY, 0x08, {KEY_MUTE} },
384         { KE_KEY, 0x11, {KEY_PROG1} },
385         { KE_KEY, 0x12, {KEY_PROG2} },
386         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
387         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
388         { KE_KEY, 0x31, {KEY_MAIL} },
389         { KE_KEY, 0x36, {KEY_WWW} },
390         { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
391         { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
392         { KE_WIFI, 0x30 },
393         { KE_END, FE_MAIL_LED | FE_UNTESTED }
394 };
395 
396 static struct key_entry keymap_acer_travelmate_300[] __initdata = {
397         { KE_KEY, 0x01, {KEY_HELP} },
398         { KE_KEY, 0x02, {KEY_CONFIG} },
399         { KE_KEY, 0x03, {KEY_POWER} },
400         { KE_KEY, 0x08, {KEY_MUTE} },
401         { KE_KEY, 0x11, {KEY_PROG1} },
402         { KE_KEY, 0x12, {KEY_PROG2} },
403         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
404         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
405         { KE_KEY, 0x31, {KEY_MAIL} },
406         { KE_KEY, 0x36, {KEY_WWW} },
407         { KE_WIFI, 0x30 },
408         { KE_BLUETOOTH, 0x44 },
409         { KE_END, FE_MAIL_LED | FE_UNTESTED }
410 };
411 
412 static struct key_entry keymap_acer_travelmate_380[] __initdata = {
413         { KE_KEY, 0x01, {KEY_HELP} },
414         { KE_KEY, 0x02, {KEY_CONFIG} },
415         { KE_KEY, 0x03, {KEY_POWER} }, /* not 370 */
416         { KE_KEY, 0x11, {KEY_PROG1} },
417         { KE_KEY, 0x12, {KEY_PROG2} },
418         { KE_KEY, 0x13, {KEY_PROG3} },
419         { KE_KEY, 0x31, {KEY_MAIL} },
420         { KE_KEY, 0x36, {KEY_WWW} },
421         { KE_WIFI, 0x30 },
422         { KE_END, FE_MAIL_LED | FE_UNTESTED }
423 };
424 
425 /* unusual map */
426 static struct key_entry keymap_acer_travelmate_220[] __initdata = {
427         { KE_KEY, 0x01, {KEY_HELP} },
428         { KE_KEY, 0x02, {KEY_CONFIG} },
429         { KE_KEY, 0x11, {KEY_MAIL} },
430         { KE_KEY, 0x12, {KEY_WWW} },
431         { KE_KEY, 0x13, {KEY_PROG2} },
432         { KE_KEY, 0x31, {KEY_PROG1} },
433         { KE_END, FE_WIFI_LED | FE_UNTESTED }
434 };
435 
436 static struct key_entry keymap_acer_travelmate_230[] __initdata = {
437         { KE_KEY, 0x01, {KEY_HELP} },
438         { KE_KEY, 0x02, {KEY_CONFIG} },
439         { KE_KEY, 0x11, {KEY_PROG1} },
440         { KE_KEY, 0x12, {KEY_PROG2} },
441         { KE_KEY, 0x31, {KEY_MAIL} },
442         { KE_KEY, 0x36, {KEY_WWW} },
443         { KE_END, FE_WIFI_LED | FE_UNTESTED }
444 };
445 
446 static struct key_entry keymap_acer_travelmate_240[] __initdata = {
447         { KE_KEY, 0x01, {KEY_HELP} },
448         { KE_KEY, 0x02, {KEY_CONFIG} },
449         { KE_KEY, 0x03, {KEY_POWER} },
450         { KE_KEY, 0x08, {KEY_MUTE} },
451         { KE_KEY, 0x31, {KEY_MAIL} },
452         { KE_KEY, 0x36, {KEY_WWW} },
453         { KE_KEY, 0x11, {KEY_PROG1} },
454         { KE_KEY, 0x12, {KEY_PROG2} },
455         { KE_BLUETOOTH, 0x44 },
456         { KE_WIFI, 0x30 },
457         { KE_END, FE_UNTESTED }
458 };
459 
460 static struct key_entry keymap_acer_travelmate_350[] __initdata = {
461         { KE_KEY, 0x01, {KEY_HELP} },
462         { KE_KEY, 0x02, {KEY_CONFIG} },
463         { KE_KEY, 0x11, {KEY_PROG1} },
464         { KE_KEY, 0x12, {KEY_PROG2} },
465         { KE_KEY, 0x13, {KEY_MAIL} },
466         { KE_KEY, 0x14, {KEY_PROG3} },
467         { KE_KEY, 0x15, {KEY_WWW} },
468         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
469 };
470 
471 static struct key_entry keymap_acer_travelmate_360[] __initdata = {
472         { KE_KEY, 0x01, {KEY_HELP} },
473         { KE_KEY, 0x02, {KEY_CONFIG} },
474         { KE_KEY, 0x11, {KEY_PROG1} },
475         { KE_KEY, 0x12, {KEY_PROG2} },
476         { KE_KEY, 0x13, {KEY_MAIL} },
477         { KE_KEY, 0x14, {KEY_PROG3} },
478         { KE_KEY, 0x15, {KEY_WWW} },
479         { KE_KEY, 0x40, {KEY_WLAN} },
480         { KE_END, FE_WIFI_LED | FE_UNTESTED } /* no mail led */
481 };
482 
483 /* Wifi subsystem only activates the led. Therefore we need to pass
484  * wifi event as a normal key, then userspace can really change the wifi state.
485  * TODO we need to export led state to userspace (wifi and mail) */
486 static struct key_entry keymap_acer_travelmate_610[] __initdata = {
487         { KE_KEY, 0x01, {KEY_HELP} },
488         { KE_KEY, 0x02, {KEY_CONFIG} },
489         { KE_KEY, 0x11, {KEY_PROG1} },
490         { KE_KEY, 0x12, {KEY_PROG2} },
491         { KE_KEY, 0x13, {KEY_PROG3} },
492         { KE_KEY, 0x14, {KEY_MAIL} },
493         { KE_KEY, 0x15, {KEY_WWW} },
494         { KE_KEY, 0x40, {KEY_WLAN} },
495         { KE_END, FE_MAIL_LED | FE_WIFI_LED }
496 };
497 
498 static struct key_entry keymap_acer_travelmate_630[] __initdata = {
499         { KE_KEY, 0x01, {KEY_HELP} },
500         { KE_KEY, 0x02, {KEY_CONFIG} },
501         { KE_KEY, 0x03, {KEY_POWER} },
502         { KE_KEY, 0x08, {KEY_MUTE} }, /* not 620 */
503         { KE_KEY, 0x11, {KEY_PROG1} },
504         { KE_KEY, 0x12, {KEY_PROG2} },
505         { KE_KEY, 0x13, {KEY_PROG3} },
506         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
507         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
508         { KE_KEY, 0x31, {KEY_MAIL} },
509         { KE_KEY, 0x36, {KEY_WWW} },
510         { KE_WIFI, 0x30 },
511         { KE_END, FE_MAIL_LED | FE_UNTESTED }
512 };
513 
514 static struct key_entry keymap_aopen_1559as[] __initdata = {
515         { KE_KEY,  0x01, {KEY_HELP} },
516         { KE_KEY,  0x06, {KEY_PROG3} },
517         { KE_KEY,  0x11, {KEY_PROG1} },
518         { KE_KEY,  0x12, {KEY_PROG2} },
519         { KE_WIFI, 0x30 },
520         { KE_KEY,  0x31, {KEY_MAIL} },
521         { KE_KEY,  0x36, {KEY_WWW} },
522         { KE_END,  0 },
523 };
524 
525 static struct key_entry keymap_fs_amilo_d88x0[] __initdata = {
526         { KE_KEY, 0x01, {KEY_HELP} },
527         { KE_KEY, 0x08, {KEY_MUTE} },
528         { KE_KEY, 0x31, {KEY_MAIL} },
529         { KE_KEY, 0x36, {KEY_WWW} },
530         { KE_KEY, 0x11, {KEY_PROG1} },
531         { KE_KEY, 0x12, {KEY_PROG2} },
532         { KE_KEY, 0x13, {KEY_PROG3} },
533         { KE_END, FE_MAIL_LED | FE_WIFI_LED | FE_UNTESTED }
534 };
535 
536 static struct key_entry keymap_wistron_md2900[] __initdata = {
537         { KE_KEY, 0x01, {KEY_HELP} },
538         { KE_KEY, 0x02, {KEY_CONFIG} },
539         { KE_KEY, 0x11, {KEY_PROG1} },
540         { KE_KEY, 0x12, {KEY_PROG2} },
541         { KE_KEY, 0x31, {KEY_MAIL} },
542         { KE_KEY, 0x36, {KEY_WWW} },
543         { KE_WIFI, 0x30 },
544         { KE_END, FE_MAIL_LED | FE_UNTESTED }
545 };
546 
547 static struct key_entry keymap_wistron_md96500[] __initdata = {
548         { KE_KEY, 0x01, {KEY_HELP} },
549         { KE_KEY, 0x02, {KEY_CONFIG} },
550         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
551         { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
552         { KE_KEY, 0x08, {KEY_MUTE} },
553         { KE_KEY, 0x11, {KEY_PROG1} },
554         { KE_KEY, 0x12, {KEY_PROG2} },
555         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
556         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
557         { KE_KEY, 0x22, {KEY_REWIND} },
558         { KE_KEY, 0x23, {KEY_FORWARD} },
559         { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
560         { KE_KEY, 0x25, {KEY_STOPCD} },
561         { KE_KEY, 0x31, {KEY_MAIL} },
562         { KE_KEY, 0x36, {KEY_WWW} },
563         { KE_WIFI, 0x30 },
564         { KE_BLUETOOTH, 0x44 },
565         { KE_END, 0 }
566 };
567 
568 static struct key_entry keymap_wistron_generic[] __initdata = {
569         { KE_KEY, 0x01, {KEY_HELP} },
570         { KE_KEY, 0x02, {KEY_CONFIG} },
571         { KE_KEY, 0x03, {KEY_POWER} },
572         { KE_KEY, 0x05, {KEY_SWITCHVIDEOMODE} }, /* Display selection */
573         { KE_KEY, 0x06, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
574         { KE_KEY, 0x08, {KEY_MUTE} },
575         { KE_KEY, 0x11, {KEY_PROG1} },
576         { KE_KEY, 0x12, {KEY_PROG2} },
577         { KE_KEY, 0x13, {KEY_PROG3} },
578         { KE_KEY, 0x14, {KEY_MAIL} },
579         { KE_KEY, 0x15, {KEY_WWW} },
580         { KE_KEY, 0x20, {KEY_VOLUMEUP} },
581         { KE_KEY, 0x21, {KEY_VOLUMEDOWN} },
582         { KE_KEY, 0x22, {KEY_REWIND} },
583         { KE_KEY, 0x23, {KEY_FORWARD} },
584         { KE_KEY, 0x24, {KEY_PLAYPAUSE} },
585         { KE_KEY, 0x25, {KEY_STOPCD} },
586         { KE_KEY, 0x31, {KEY_MAIL} },
587         { KE_KEY, 0x36, {KEY_WWW} },
588         { KE_KEY, 0x37, {KEY_DISPLAYTOGGLE} }, /* Display on/off */
589         { KE_KEY, 0x40, {KEY_WLAN} },
590         { KE_KEY, 0x49, {KEY_CONFIG} },
591         { KE_SW, 0x4a, {.sw = {SW_LID, 1}} }, /* lid close */
592         { KE_SW, 0x4b, {.sw = {SW_LID, 0}} }, /* lid open */
593         { KE_KEY, 0x6a, {KEY_CONFIG} },
594         { KE_KEY, 0x6d, {KEY_POWER} },
595         { KE_KEY, 0x71, {KEY_STOPCD} },
596         { KE_KEY, 0x72, {KEY_PLAYPAUSE} },
597         { KE_KEY, 0x74, {KEY_REWIND} },
598         { KE_KEY, 0x78, {KEY_FORWARD} },
599         { KE_WIFI, 0x30 },
600         { KE_BLUETOOTH, 0x44 },
601         { KE_END, 0 }
602 };
603 
604 static struct key_entry keymap_aopen_1557[] __initdata = {
605         { KE_KEY,  0x01, {KEY_HELP} },
606         { KE_KEY,  0x11, {KEY_PROG1} },
607         { KE_KEY,  0x12, {KEY_PROG2} },
608         { KE_WIFI, 0x30 },
609         { KE_KEY,  0x22, {KEY_REWIND} },
610         { KE_KEY,  0x23, {KEY_FORWARD} },
611         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
612         { KE_KEY,  0x25, {KEY_STOPCD} },
613         { KE_KEY,  0x31, {KEY_MAIL} },
614         { KE_KEY,  0x36, {KEY_WWW} },
615         { KE_END,  0 }
616 };
617 
618 static struct key_entry keymap_prestigio[] __initdata = {
619         { KE_KEY,  0x11, {KEY_PROG1} },
620         { KE_KEY,  0x12, {KEY_PROG2} },
621         { KE_WIFI, 0x30 },
622         { KE_KEY,  0x22, {KEY_REWIND} },
623         { KE_KEY,  0x23, {KEY_FORWARD} },
624         { KE_KEY,  0x24, {KEY_PLAYPAUSE} },
625         { KE_KEY,  0x25, {KEY_STOPCD} },
626         { KE_KEY,  0x31, {KEY_MAIL} },
627         { KE_KEY,  0x36, {KEY_WWW} },
628         { KE_END,  0 }
629 };
630 
631 
632 /*
633  * If your machine is not here (which is currently rather likely), please send
634  * a list of buttons and their key codes (reported when loading this module
635  * with force=1) and the output of dmidecode to $MODULE_AUTHOR.
636  */
637 static const struct dmi_system_id dmi_ids[] __initconst = {
638         {
639                 /* Fujitsu-Siemens Amilo Pro V2000 */
640                 .callback = dmi_matched,
641                 .matches = {
642                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
643                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro V2000"),
644                 },
645                 .driver_data = keymap_fs_amilo_pro_v2000
646         },
647         {
648                 /* Fujitsu-Siemens Amilo Pro Edition V3505 */
649                 .callback = dmi_matched,
650                 .matches = {
651                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
652                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pro Edition V3505"),
653                 },
654                 .driver_data = keymap_fs_amilo_pro_v3505
655         },
656         {
657                 /* Fujitsu-Siemens Amilo M7400 */
658                 .callback = dmi_matched,
659                 .matches = {
660                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
661                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO M        "),
662                 },
663                 .driver_data = keymap_fs_amilo_pro_v2000
664         },
665         {
666                 /* Maxdata Pro 7000 DX */
667                 .callback = dmi_matched,
668                 .matches = {
669                         DMI_MATCH(DMI_SYS_VENDOR, "MAXDATA"),
670                         DMI_MATCH(DMI_PRODUCT_NAME, "Pro 7000"),
671                 },
672                 .driver_data = keymap_fs_amilo_pro_v2000
673         },
674         {
675                 /* Fujitsu N3510 */
676                 .callback = dmi_matched,
677                 .matches = {
678                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
679                         DMI_MATCH(DMI_PRODUCT_NAME, "N3510"),
680                 },
681                 .driver_data = keymap_fujitsu_n3510
682         },
683         {
684                 /* Acer Aspire 1500 */
685                 .callback = dmi_matched,
686                 .matches = {
687                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
688                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1500"),
689                 },
690                 .driver_data = keymap_acer_aspire_1500
691         },
692         {
693                 /* Acer Aspire 1600 */
694                 .callback = dmi_matched,
695                 .matches = {
696                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
697                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1600"),
698                 },
699                 .driver_data = keymap_acer_aspire_1600
700         },
701         {
702                 /* Acer Aspire 3020 */
703                 .callback = dmi_matched,
704                 .matches = {
705                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
706                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 3020"),
707                 },
708                 .driver_data = keymap_acer_aspire_5020
709         },
710         {
711                 /* Acer Aspire 5020 */
712                 .callback = dmi_matched,
713                 .matches = {
714                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
715                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5020"),
716                 },
717                 .driver_data = keymap_acer_aspire_5020
718         },
719         {
720                 /* Acer TravelMate 2100 */
721                 .callback = dmi_matched,
722                 .matches = {
723                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
724                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2100"),
725                 },
726                 .driver_data = keymap_acer_aspire_5020
727         },
728         {
729                 /* Acer TravelMate 2410 */
730                 .callback = dmi_matched,
731                 .matches = {
732                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
733                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2410"),
734                 },
735                 .driver_data = keymap_acer_travelmate_2410
736         },
737         {
738                 /* Acer TravelMate C300 */
739                 .callback = dmi_matched,
740                 .matches = {
741                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
742                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C300"),
743                 },
744                 .driver_data = keymap_acer_travelmate_300
745         },
746         {
747                 /* Acer TravelMate C100 */
748                 .callback = dmi_matched,
749                 .matches = {
750                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
751                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C100"),
752                 },
753                 .driver_data = keymap_acer_travelmate_300
754         },
755         {
756                 /* Acer TravelMate C110 */
757                 .callback = dmi_matched,
758                 .matches = {
759                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
760                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate C110"),
761                 },
762                 .driver_data = keymap_acer_travelmate_110
763         },
764         {
765                 /* Acer TravelMate 380 */
766                 .callback = dmi_matched,
767                 .matches = {
768                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
769                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 380"),
770                 },
771                 .driver_data = keymap_acer_travelmate_380
772         },
773         {
774                 /* Acer TravelMate 370 */
775                 .callback = dmi_matched,
776                 .matches = {
777                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
778                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 370"),
779                 },
780                 .driver_data = keymap_acer_travelmate_380 /* keyboard minus 1 key */
781         },
782         {
783                 /* Acer TravelMate 220 */
784                 .callback = dmi_matched,
785                 .matches = {
786                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
787                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 220"),
788                 },
789                 .driver_data = keymap_acer_travelmate_220
790         },
791         {
792                 /* Acer TravelMate 260 */
793                 .callback = dmi_matched,
794                 .matches = {
795                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
796                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 260"),
797                 },
798                 .driver_data = keymap_acer_travelmate_220
799         },
800         {
801                 /* Acer TravelMate 230 */
802                 .callback = dmi_matched,
803                 .matches = {
804                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
805                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 230"),
806                         /* acerhk looks for "TravelMate F4..." ?! */
807                 },
808                 .driver_data = keymap_acer_travelmate_230
809         },
810         {
811                 /* Acer TravelMate 280 */
812                 .callback = dmi_matched,
813                 .matches = {
814                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
815                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 280"),
816                 },
817                 .driver_data = keymap_acer_travelmate_230
818         },
819         {
820                 /* Acer TravelMate 240 */
821                 .callback = dmi_matched,
822                 .matches = {
823                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
824                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 240"),
825                 },
826                 .driver_data = keymap_acer_travelmate_240
827         },
828         {
829                 /* Acer TravelMate 250 */
830                 .callback = dmi_matched,
831                 .matches = {
832                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
833                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 250"),
834                 },
835                 .driver_data = keymap_acer_travelmate_240
836         },
837         {
838                 /* Acer TravelMate 2424NWXCi */
839                 .callback = dmi_matched,
840                 .matches = {
841                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
842                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 2420"),
843                 },
844                 .driver_data = keymap_acer_travelmate_240
845         },
846         {
847                 /* Acer TravelMate 350 */
848                 .callback = dmi_matched,
849                 .matches = {
850                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
851                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 350"),
852                 },
853                 .driver_data = keymap_acer_travelmate_350
854         },
855         {
856                 /* Acer TravelMate 360 */
857                 .callback = dmi_matched,
858                 .matches = {
859                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
860                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
861                 },
862                 .driver_data = keymap_acer_travelmate_360
863         },
864         {
865                 /* Acer TravelMate 610 */
866                 .callback = dmi_matched,
867                 .matches = {
868                         DMI_MATCH(DMI_SYS_VENDOR, "ACER"),
869                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 610"),
870                 },
871                 .driver_data = keymap_acer_travelmate_610
872         },
873         {
874                 /* Acer TravelMate 620 */
875                 .callback = dmi_matched,
876                 .matches = {
877                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
878                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 620"),
879                 },
880                 .driver_data = keymap_acer_travelmate_630
881         },
882         {
883                 /* Acer TravelMate 630 */
884                 .callback = dmi_matched,
885                 .matches = {
886                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
887                         DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 630"),
888                 },
889                 .driver_data = keymap_acer_travelmate_630
890         },
891         {
892                 /* AOpen 1559AS */
893                 .callback = dmi_matched,
894                 .matches = {
895                         DMI_MATCH(DMI_PRODUCT_NAME, "E2U"),
896                         DMI_MATCH(DMI_BOARD_NAME, "E2U"),
897                 },
898                 .driver_data = keymap_aopen_1559as
899         },
900         {
901                 /* Medion MD 9783 */
902                 .callback = dmi_matched,
903                 .matches = {
904                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
905                         DMI_MATCH(DMI_PRODUCT_NAME, "MD 9783"),
906                 },
907                 .driver_data = keymap_wistron_ms2111
908         },
909         {
910                 /* Medion MD 40100 */
911                 .callback = dmi_matched,
912                 .matches = {
913                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
914                         DMI_MATCH(DMI_PRODUCT_NAME, "WID2000"),
915                 },
916                 .driver_data = keymap_wistron_md40100
917         },
918         {
919                 /* Medion MD 2900 */
920                 .callback = dmi_matched,
921                 .matches = {
922                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
923                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2000"),
924                 },
925                 .driver_data = keymap_wistron_md2900
926         },
927         {
928                 /* Medion MD 42200 */
929                 .callback = dmi_matched,
930                 .matches = {
931                         DMI_MATCH(DMI_SYS_VENDOR, "Medion"),
932                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2030"),
933                 },
934                 .driver_data = keymap_fs_amilo_pro_v2000
935         },
936         {
937                 /* Medion MD 96500 */
938                 .callback = dmi_matched,
939                 .matches = {
940                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
941                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2040"),
942                 },
943                 .driver_data = keymap_wistron_md96500
944         },
945         {
946                 /* Medion MD 95400 */
947                 .callback = dmi_matched,
948                 .matches = {
949                         DMI_MATCH(DMI_SYS_VENDOR, "MEDIONPC"),
950                         DMI_MATCH(DMI_PRODUCT_NAME, "WIM 2050"),
951                 },
952                 .driver_data = keymap_wistron_md96500
953         },
954         {
955                 /* Fujitsu Siemens Amilo D7820 */
956                 .callback = dmi_matched,
957                 .matches = {
958                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), /* not sure */
959                         DMI_MATCH(DMI_PRODUCT_NAME, "Amilo D"),
960                 },
961                 .driver_data = keymap_fs_amilo_d88x0
962         },
963         {
964                 /* Fujitsu Siemens Amilo D88x0 */
965                 .callback = dmi_matched,
966                 .matches = {
967                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
968                         DMI_MATCH(DMI_PRODUCT_NAME, "AMILO D"),
969                 },
970                 .driver_data = keymap_fs_amilo_d88x0
971         },
972         { NULL, }
973 };
974 MODULE_DEVICE_TABLE(dmi, dmi_ids);
975 
976 /* Copy the good keymap, as the original ones are free'd */
977 static int __init copy_keymap(void)
978 {
979         const struct key_entry *key;
980         struct key_entry *new_keymap;
981         unsigned int length = 1;
982 
983         for (key = keymap; key->type != KE_END; key++)
984                 length++;
985 
986         new_keymap = kmemdup(keymap, length * sizeof(struct key_entry),
987                              GFP_KERNEL);
988         if (!new_keymap)
989                 return -ENOMEM;
990 
991         keymap = new_keymap;
992 
993         return 0;
994 }
995 
996 static int __init select_keymap(void)
997 {
998         dmi_check_system(dmi_ids);
999         if (keymap_name != NULL) {
1000                 if (strcmp (keymap_name, "1557/MS2141") == 0)
1001                         keymap = keymap_wistron_ms2141;
1002                 else if (strcmp (keymap_name, "aopen1557") == 0)
1003                         keymap = keymap_aopen_1557;
1004                 else if (strcmp (keymap_name, "prestigio") == 0)
1005                         keymap = keymap_prestigio;
1006                 else if (strcmp (keymap_name, "generic") == 0)
1007                         keymap = keymap_wistron_generic;
1008                 else {
1009                         printk(KERN_ERR "wistron_btns: Keymap unknown\n");
1010                         return -EINVAL;
1011                 }
1012         }
1013         if (keymap == NULL) {
1014                 if (!force) {
1015                         printk(KERN_ERR "wistron_btns: System unknown\n");
1016                         return -ENODEV;
1017                 }
1018                 keymap = keymap_empty;
1019         }
1020 
1021         return copy_keymap();
1022 }
1023 
1024  /* Input layer interface */
1025 
1026 static struct input_polled_dev *wistron_idev;
1027 static unsigned long jiffies_last_press;
1028 static bool wifi_enabled;
1029 static bool bluetooth_enabled;
1030 
1031  /* led management */
1032 static void wistron_mail_led_set(struct led_classdev *led_cdev,
1033                                 enum led_brightness value)
1034 {
1035         bios_set_state(MAIL_LED, (value != LED_OFF) ? 1 : 0);
1036 }
1037 
1038 /* same as setting up wifi card, but for laptops on which the led is managed */
1039 static void wistron_wifi_led_set(struct led_classdev *led_cdev,
1040                                 enum led_brightness value)
1041 {
1042         bios_set_state(WIFI, (value != LED_OFF) ? 1 : 0);
1043 }
1044 
1045 static struct led_classdev wistron_mail_led = {
1046         .name                   = "wistron:green:mail",
1047         .brightness_set         = wistron_mail_led_set,
1048 };
1049 
1050 static struct led_classdev wistron_wifi_led = {
1051         .name                   = "wistron:red:wifi",
1052         .brightness_set         = wistron_wifi_led_set,
1053 };
1054 
1055 static void wistron_led_init(struct device *parent)
1056 {
1057         if (leds_present & FE_WIFI_LED) {
1058                 u16 wifi = bios_get_default_setting(WIFI);
1059                 if (wifi & 1) {
1060                         wistron_wifi_led.brightness = (wifi & 2) ? LED_FULL : LED_OFF;
1061                         if (led_classdev_register(parent, &wistron_wifi_led))
1062                                 leds_present &= ~FE_WIFI_LED;
1063                         else
1064                                 bios_set_state(WIFI, wistron_wifi_led.brightness);
1065 
1066                 } else
1067                         leds_present &= ~FE_WIFI_LED;
1068         }
1069 
1070         if (leds_present & FE_MAIL_LED) {
1071                 /* bios_get_default_setting(MAIL) always retuns 0, so just turn the led off */
1072                 wistron_mail_led.brightness = LED_OFF;
1073                 if (led_classdev_register(parent, &wistron_mail_led))
1074                         leds_present &= ~FE_MAIL_LED;
1075                 else
1076                         bios_set_state(MAIL_LED, wistron_mail_led.brightness);
1077         }
1078 }
1079 
1080 static void wistron_led_remove(void)
1081 {
1082         if (leds_present & FE_MAIL_LED)
1083                 led_classdev_unregister(&wistron_mail_led);
1084 
1085         if (leds_present & FE_WIFI_LED)
1086                 led_classdev_unregister(&wistron_wifi_led);
1087 }
1088 
1089 static inline void wistron_led_suspend(void)
1090 {
1091         if (leds_present & FE_MAIL_LED)
1092                 led_classdev_suspend(&wistron_mail_led);
1093 
1094         if (leds_present & FE_WIFI_LED)
1095                 led_classdev_suspend(&wistron_wifi_led);
1096 }
1097 
1098 static inline void wistron_led_resume(void)
1099 {
1100         if (leds_present & FE_MAIL_LED)
1101                 led_classdev_resume(&wistron_mail_led);
1102 
1103         if (leds_present & FE_WIFI_LED)
1104                 led_classdev_resume(&wistron_wifi_led);
1105 }
1106 
1107 static void handle_key(u8 code)
1108 {
1109         const struct key_entry *key =
1110                 sparse_keymap_entry_from_scancode(wistron_idev->input, code);
1111 
1112         if (key) {
1113                 switch (key->type) {
1114                 case KE_WIFI:
1115                         if (have_wifi) {
1116                                 wifi_enabled = !wifi_enabled;
1117                                 bios_set_state(WIFI, wifi_enabled);
1118                         }
1119                         break;
1120 
1121                 case KE_BLUETOOTH:
1122                         if (have_bluetooth) {
1123                                 bluetooth_enabled = !bluetooth_enabled;
1124                                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1125                         }
1126                         break;
1127 
1128                 default:
1129                         sparse_keymap_report_entry(wistron_idev->input,
1130                                                    key, 1, true);
1131                         break;
1132                 }
1133                 jiffies_last_press = jiffies;
1134         } else
1135                 printk(KERN_NOTICE
1136                         "wistron_btns: Unknown key code %02X\n", code);
1137 }
1138 
1139 static void poll_bios(bool discard)
1140 {
1141         u8 qlen;
1142         u16 val;
1143 
1144         for (;;) {
1145                 qlen = CMOS_READ(cmos_address);
1146                 if (qlen == 0)
1147                         break;
1148                 val = bios_pop_queue();
1149                 if (val != 0 && !discard)
1150                         handle_key((u8)val);
1151         }
1152 }
1153 
1154 static void wistron_flush(struct input_polled_dev *dev)
1155 {
1156         /* Flush stale event queue */
1157         poll_bios(true);
1158 }
1159 
1160 static void wistron_poll(struct input_polled_dev *dev)
1161 {
1162         poll_bios(false);
1163 
1164         /* Increase poll frequency if user is currently pressing keys (< 2s ago) */
1165         if (time_before(jiffies, jiffies_last_press + 2 * HZ))
1166                 dev->poll_interval = POLL_INTERVAL_BURST;
1167         else
1168                 dev->poll_interval = POLL_INTERVAL_DEFAULT;
1169 }
1170 
1171 static int wistron_setup_keymap(struct input_dev *dev,
1172                                           struct key_entry *entry)
1173 {
1174         switch (entry->type) {
1175 
1176         /* if wifi or bluetooth are not available, create normal keys */
1177         case KE_WIFI:
1178                 if (!have_wifi) {
1179                         entry->type = KE_KEY;
1180                         entry->keycode = KEY_WLAN;
1181                 }
1182                 break;
1183 
1184         case KE_BLUETOOTH:
1185                 if (!have_bluetooth) {
1186                         entry->type = KE_KEY;
1187                         entry->keycode = KEY_BLUETOOTH;
1188                 }
1189                 break;
1190 
1191         case KE_END:
1192                 if (entry->code & FE_UNTESTED)
1193                         printk(KERN_WARNING "Untested laptop multimedia keys, "
1194                                 "please report success or failure to "
1195                                 "eric.piel@tremplin-utc.net\n");
1196                 break;
1197         }
1198 
1199         return 0;
1200 }
1201 
1202 static int setup_input_dev(void)
1203 {
1204         struct input_dev *input_dev;
1205         int error;
1206 
1207         wistron_idev = input_allocate_polled_device();
1208         if (!wistron_idev)
1209                 return -ENOMEM;
1210 
1211         wistron_idev->open = wistron_flush;
1212         wistron_idev->poll = wistron_poll;
1213         wistron_idev->poll_interval = POLL_INTERVAL_DEFAULT;
1214 
1215         input_dev = wistron_idev->input;
1216         input_dev->name = "Wistron laptop buttons";
1217         input_dev->phys = "wistron/input0";
1218         input_dev->id.bustype = BUS_HOST;
1219         input_dev->dev.parent = &wistron_device->dev;
1220 
1221         error = sparse_keymap_setup(input_dev, keymap, wistron_setup_keymap);
1222         if (error)
1223                 goto err_free_dev;
1224 
1225         error = input_register_polled_device(wistron_idev);
1226         if (error)
1227                 goto err_free_keymap;
1228 
1229         return 0;
1230 
1231  err_free_keymap:
1232         sparse_keymap_free(input_dev);
1233  err_free_dev:
1234         input_free_polled_device(wistron_idev);
1235         return error;
1236 }
1237 
1238 /* Driver core */
1239 
1240 static int wistron_probe(struct platform_device *dev)
1241 {
1242         int err;
1243 
1244         bios_attach();
1245         cmos_address = bios_get_cmos_address();
1246 
1247         if (have_wifi) {
1248                 u16 wifi = bios_get_default_setting(WIFI);
1249                 if (wifi & 1)
1250                         wifi_enabled = wifi & 2;
1251                 else
1252                         have_wifi = 0;
1253 
1254                 if (have_wifi)
1255                         bios_set_state(WIFI, wifi_enabled);
1256         }
1257 
1258         if (have_bluetooth) {
1259                 u16 bt = bios_get_default_setting(BLUETOOTH);
1260                 if (bt & 1)
1261                         bluetooth_enabled = bt & 2;
1262                 else
1263                         have_bluetooth = false;
1264 
1265                 if (have_bluetooth)
1266                         bios_set_state(BLUETOOTH, bluetooth_enabled);
1267         }
1268 
1269         wistron_led_init(&dev->dev);
1270 
1271         err = setup_input_dev();
1272         if (err) {
1273                 bios_detach();
1274                 return err;
1275         }
1276 
1277         return 0;
1278 }
1279 
1280 static int wistron_remove(struct platform_device *dev)
1281 {
1282         wistron_led_remove();
1283         input_unregister_polled_device(wistron_idev);
1284         sparse_keymap_free(wistron_idev->input);
1285         input_free_polled_device(wistron_idev);
1286         bios_detach();
1287 
1288         return 0;
1289 }
1290 
1291 #ifdef CONFIG_PM
1292 static int wistron_suspend(struct device *dev)
1293 {
1294         if (have_wifi)
1295                 bios_set_state(WIFI, 0);
1296 
1297         if (have_bluetooth)
1298                 bios_set_state(BLUETOOTH, 0);
1299 
1300         wistron_led_suspend();
1301 
1302         return 0;
1303 }
1304 
1305 static int wistron_resume(struct device *dev)
1306 {
1307         if (have_wifi)
1308                 bios_set_state(WIFI, wifi_enabled);
1309 
1310         if (have_bluetooth)
1311                 bios_set_state(BLUETOOTH, bluetooth_enabled);
1312 
1313         wistron_led_resume();
1314 
1315         poll_bios(true);
1316 
1317         return 0;
1318 }
1319 
1320 static const struct dev_pm_ops wistron_pm_ops = {
1321         .suspend        = wistron_suspend,
1322         .resume         = wistron_resume,
1323         .poweroff       = wistron_suspend,
1324         .restore        = wistron_resume,
1325 };
1326 #endif
1327 
1328 static struct platform_driver wistron_driver = {
1329         .driver         = {
1330                 .name   = "wistron-bios",
1331                 .owner  = THIS_MODULE,
1332 #ifdef CONFIG_PM
1333                 .pm     = &wistron_pm_ops,
1334 #endif
1335         },
1336         .probe          = wistron_probe,
1337         .remove         = wistron_remove,
1338 };
1339 
1340 static int __init wb_module_init(void)
1341 {
1342         int err;
1343 
1344         err = select_keymap();
1345         if (err)
1346                 return err;
1347 
1348         err = map_bios();
1349         if (err)
1350                 goto err_free_keymap;
1351 
1352         err = platform_driver_register(&wistron_driver);
1353         if (err)
1354                 goto err_unmap_bios;
1355 
1356         wistron_device = platform_device_alloc("wistron-bios", -1);
1357         if (!wistron_device) {
1358                 err = -ENOMEM;
1359                 goto err_unregister_driver;
1360         }
1361 
1362         err = platform_device_add(wistron_device);
1363         if (err)
1364                 goto err_free_device;
1365 
1366         return 0;
1367 
1368  err_free_device:
1369         platform_device_put(wistron_device);
1370  err_unregister_driver:
1371         platform_driver_unregister(&wistron_driver);
1372  err_unmap_bios:
1373         unmap_bios();
1374  err_free_keymap:
1375         kfree(keymap);
1376 
1377         return err;
1378 }
1379 
1380 static void __exit wb_module_exit(void)
1381 {
1382         platform_device_unregister(wistron_device);
1383         platform_driver_unregister(&wistron_driver);
1384         unmap_bios();
1385         kfree(keymap);
1386 }
1387 
1388 module_init(wb_module_init);
1389 module_exit(wb_module_exit);
1390 

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