[PATCH] isdn/gigaset: avoid cs->dev null pointer dereference
[linux-2.6] / drivers / input / serio / i8042-x86ia64io.h
1 #ifndef _I8042_X86IA64IO_H
2 #define _I8042_X86IA64IO_H
3
4 /*
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 as published by
7  * the Free Software Foundation.
8  */
9
10 /*
11  * Names.
12  */
13
14 #define I8042_KBD_PHYS_DESC "isa0060/serio0"
15 #define I8042_AUX_PHYS_DESC "isa0060/serio1"
16 #define I8042_MUX_PHYS_DESC "isa0060/serio%d"
17
18 /*
19  * IRQs.
20  */
21
22 #if defined(__ia64__)
23 # define I8042_MAP_IRQ(x)       isa_irq_to_vector((x))
24 #else
25 # define I8042_MAP_IRQ(x)       (x)
26 #endif
27
28 #define I8042_KBD_IRQ   i8042_kbd_irq
29 #define I8042_AUX_IRQ   i8042_aux_irq
30
31 static int i8042_kbd_irq;
32 static int i8042_aux_irq;
33
34 /*
35  * Register numbers.
36  */
37
38 #define I8042_COMMAND_REG       i8042_command_reg
39 #define I8042_STATUS_REG        i8042_command_reg
40 #define I8042_DATA_REG          i8042_data_reg
41
42 static int i8042_command_reg = 0x64;
43 static int i8042_data_reg = 0x60;
44
45
46 static inline int i8042_read_data(void)
47 {
48         return inb(I8042_DATA_REG);
49 }
50
51 static inline int i8042_read_status(void)
52 {
53         return inb(I8042_STATUS_REG);
54 }
55
56 static inline void i8042_write_data(int val)
57 {
58         outb(val, I8042_DATA_REG);
59 }
60
61 static inline void i8042_write_command(int val)
62 {
63         outb(val, I8042_COMMAND_REG);
64 }
65
66 #if defined(__i386__)
67
68 #include <linux/dmi.h>
69
70 static struct dmi_system_id __initdata i8042_dmi_noloop_table[] = {
71         {
72                 .ident = "Compaq Proliant 8500",
73                 .matches = {
74                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
75                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
76                         DMI_MATCH(DMI_PRODUCT_VERSION, "8500"),
77                 },
78         },
79         {
80                 .ident = "Compaq Proliant DL760",
81                 .matches = {
82                         DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
83                         DMI_MATCH(DMI_PRODUCT_NAME , "ProLiant"),
84                         DMI_MATCH(DMI_PRODUCT_VERSION, "DL760"),
85                 },
86         },
87         {
88                 .ident = "OQO Model 01",
89                 .matches = {
90                         DMI_MATCH(DMI_SYS_VENDOR, "OQO"),
91                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPTO"),
92                         DMI_MATCH(DMI_PRODUCT_VERSION, "00"),
93                 },
94         },
95         { }
96 };
97
98 /*
99  * Some Fujitsu notebooks are having trouble with touchpads if
100  * active multiplexing mode is activated. Luckily they don't have
101  * external PS/2 ports so we can safely disable it.
102  * ... apparently some Toshibas don't like MUX mode either and
103  * die horrible death on reboot.
104  */
105 static struct dmi_system_id __initdata i8042_dmi_nomux_table[] = {
106         {
107                 .ident = "Fujitsu Lifebook P7010/P7010D",
108                 .matches = {
109                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
110                         DMI_MATCH(DMI_PRODUCT_NAME, "P7010"),
111                 },
112         },
113         {
114                 .ident = "Fujitsu Lifebook P5020D",
115                 .matches = {
116                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
117                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P Series"),
118                 },
119         },
120         {
121                 .ident = "Fujitsu Lifebook S2000",
122                 .matches = {
123                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
124                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S Series"),
125                 },
126         },
127         {
128                 .ident = "Fujitsu Lifebook S6230",
129                 .matches = {
130                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
131                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook S6230"),
132                 },
133         },
134         {
135                 .ident = "Fujitsu T70H",
136                 .matches = {
137                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
138                         DMI_MATCH(DMI_PRODUCT_NAME, "FMVLT70H"),
139                 },
140         },
141         {
142                 .ident = "Fujitsu-Siemens Lifebook T3010",
143                 .matches = {
144                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
145                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK T3010"),
146                 },
147         },
148         {
149                 .ident = "Fujitsu-Siemens Lifebook E4010",
150                 .matches = {
151                         DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
152                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E4010"),
153                 },
154         },
155         {
156                 .ident = "Toshiba P10",
157                 .matches = {
158                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
159                         DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P10"),
160                 },
161         },
162         {
163                 .ident = "Toshiba Equium A110",
164                 .matches = {
165                         DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
166                         DMI_MATCH(DMI_PRODUCT_NAME, "EQUIUM A110"),
167                 },
168         },
169         {
170                 .ident = "Alienware Sentia",
171                 .matches = {
172                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
173                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
174                 },
175         },
176         {
177                 .ident = "Sharp Actius MM20",
178                 .matches = {
179                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
180                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
181                 },
182         },
183         {
184                 .ident = "Sony Vaio FS-115b",
185                 .matches = {
186                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
187                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
188                 },
189         },
190         {
191                 .ident = "Amoi M636/A737",
192                 .matches = {
193                         DMI_MATCH(DMI_SYS_VENDOR, "Amoi Electronics CO.,LTD."),
194                         DMI_MATCH(DMI_PRODUCT_NAME, "M636/A737 platform"),
195                 },
196         },
197         { }
198 };
199
200
201
202 #endif
203
204
205 #ifdef CONFIG_PNP
206 #include <linux/pnp.h>
207
208 static int i8042_pnp_kbd_registered;
209 static unsigned int i8042_pnp_kbd_devices;
210 static int i8042_pnp_aux_registered;
211 static unsigned int i8042_pnp_aux_devices;
212
213 static int i8042_pnp_command_reg;
214 static int i8042_pnp_data_reg;
215 static int i8042_pnp_kbd_irq;
216 static int i8042_pnp_aux_irq;
217
218 static char i8042_pnp_kbd_name[32];
219 static char i8042_pnp_aux_name[32];
220
221 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
222 {
223         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
224                 i8042_pnp_data_reg = pnp_port_start(dev,0);
225
226         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
227                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
228
229         if (pnp_irq_valid(dev,0))
230                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
231
232         strncpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
233         if (strlen(pnp_dev_name(dev))) {
234                 strncat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
235                 strncat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
236         }
237
238         i8042_pnp_kbd_devices++;
239         return 0;
240 }
241
242 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
243 {
244         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
245                 i8042_pnp_data_reg = pnp_port_start(dev,0);
246
247         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
248                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
249
250         if (pnp_irq_valid(dev, 0))
251                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
252
253         strncpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
254         if (strlen(pnp_dev_name(dev))) {
255                 strncat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
256                 strncat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
257         }
258
259         i8042_pnp_aux_devices++;
260         return 0;
261 }
262
263 static struct pnp_device_id pnp_kbd_devids[] = {
264         { .id = "PNP0303", .driver_data = 0 },
265         { .id = "PNP030b", .driver_data = 0 },
266         { .id = "", },
267 };
268
269 static struct pnp_driver i8042_pnp_kbd_driver = {
270         .name           = "i8042 kbd",
271         .id_table       = pnp_kbd_devids,
272         .probe          = i8042_pnp_kbd_probe,
273 };
274
275 static struct pnp_device_id pnp_aux_devids[] = {
276         { .id = "PNP0f03", .driver_data = 0 },
277         { .id = "PNP0f0b", .driver_data = 0 },
278         { .id = "PNP0f0e", .driver_data = 0 },
279         { .id = "PNP0f12", .driver_data = 0 },
280         { .id = "PNP0f13", .driver_data = 0 },
281         { .id = "PNP0f19", .driver_data = 0 },
282         { .id = "PNP0f1c", .driver_data = 0 },
283         { .id = "SYN0801", .driver_data = 0 },
284         { .id = "", },
285 };
286
287 static struct pnp_driver i8042_pnp_aux_driver = {
288         .name           = "i8042 aux",
289         .id_table       = pnp_aux_devids,
290         .probe          = i8042_pnp_aux_probe,
291 };
292
293 static void i8042_pnp_exit(void)
294 {
295         if (i8042_pnp_kbd_registered) {
296                 i8042_pnp_kbd_registered = 0;
297                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
298         }
299
300         if (i8042_pnp_aux_registered) {
301                 i8042_pnp_aux_registered = 0;
302                 pnp_unregister_driver(&i8042_pnp_aux_driver);
303         }
304 }
305
306 static int __init i8042_pnp_init(void)
307 {
308         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
309         int err;
310
311         if (i8042_nopnp) {
312                 printk(KERN_INFO "i8042: PNP detection disabled\n");
313                 return 0;
314         }
315
316         err = pnp_register_driver(&i8042_pnp_kbd_driver);
317         if (!err)
318                 i8042_pnp_kbd_registered = 1;
319
320         err = pnp_register_driver(&i8042_pnp_aux_driver);
321         if (!err)
322                 i8042_pnp_aux_registered = 1;
323
324         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
325                 i8042_pnp_exit();
326 #if defined(__ia64__)
327                 return -ENODEV;
328 #else
329                 printk(KERN_INFO "PNP: No PS/2 controller found. Probing ports directly.\n");
330                 return 0;
331 #endif
332         }
333
334         if (i8042_pnp_kbd_devices)
335                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
336                         "%d", i8042_pnp_kbd_irq);
337         if (i8042_pnp_aux_devices)
338                 snprintf(aux_irq_str, sizeof(aux_irq_str),
339                         "%d", i8042_pnp_aux_irq);
340
341         printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
342                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
343                 i8042_pnp_aux_name,
344                 i8042_pnp_data_reg, i8042_pnp_command_reg,
345                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
346                 aux_irq_str);
347
348 #if defined(__ia64__)
349         if (!i8042_pnp_kbd_devices)
350                 i8042_nokbd = 1;
351         if (!i8042_pnp_aux_devices)
352                 i8042_noaux = 1;
353 #endif
354
355         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
356               i8042_pnp_data_reg != i8042_data_reg) || !i8042_pnp_data_reg) {
357                 printk(KERN_WARNING "PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
358                         i8042_pnp_data_reg, i8042_data_reg);
359                 i8042_pnp_data_reg = i8042_data_reg;
360         }
361
362         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
363               i8042_pnp_command_reg != i8042_command_reg) || !i8042_pnp_command_reg) {
364                 printk(KERN_WARNING "PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
365                         i8042_pnp_command_reg, i8042_command_reg);
366                 i8042_pnp_command_reg = i8042_command_reg;
367         }
368
369         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
370                 printk(KERN_WARNING "PNP: PS/2 controller doesn't have KBD irq; using default %d\n", i8042_kbd_irq);
371                 i8042_pnp_kbd_irq = i8042_kbd_irq;
372         }
373
374         if (!i8042_noaux && !i8042_pnp_aux_irq) {
375                 printk(KERN_WARNING "PNP: PS/2 controller doesn't have AUX irq; using default %d\n", i8042_aux_irq);
376                 i8042_pnp_aux_irq = i8042_aux_irq;
377         }
378
379         i8042_data_reg = i8042_pnp_data_reg;
380         i8042_command_reg = i8042_pnp_command_reg;
381         i8042_kbd_irq = i8042_pnp_kbd_irq;
382         i8042_aux_irq = i8042_pnp_aux_irq;
383
384         return 0;
385 }
386
387 #else
388 static inline int i8042_pnp_init(void) { return 0; }
389 static inline void i8042_pnp_exit(void) { }
390 #endif
391
392 static int __init i8042_platform_init(void)
393 {
394         int retval;
395
396 /*
397  * On ix86 platforms touching the i8042 data register region can do really
398  * bad things. Because of this the region is always reserved on ix86 boxes.
399  *
400  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
401  *              return -EBUSY;
402  */
403
404         i8042_kbd_irq = I8042_MAP_IRQ(1);
405         i8042_aux_irq = I8042_MAP_IRQ(12);
406
407         retval = i8042_pnp_init();
408         if (retval)
409                 return retval;
410
411 #if defined(__ia64__)
412         i8042_reset = 1;
413 #endif
414
415 #if defined(__i386__)
416         if (dmi_check_system(i8042_dmi_noloop_table))
417                 i8042_noloop = 1;
418
419         if (dmi_check_system(i8042_dmi_nomux_table))
420                 i8042_nomux = 1;
421 #endif
422
423         return retval;
424 }
425
426 static inline void i8042_platform_exit(void)
427 {
428         i8042_pnp_exit();
429 }
430
431 #endif /* _I8042_X86IA64IO_H */