Input: i8042 - fix logic around pnp_register_driver()
[linux-2.6.git] / 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 = "Alienware Sentia",
164                 .matches = {
165                         DMI_MATCH(DMI_SYS_VENDOR, "ALIENWARE"),
166                         DMI_MATCH(DMI_PRODUCT_NAME, "Sentia"),
167                 },
168         },
169         {
170                 .ident = "Sharp Actius MM20",
171                 .matches = {
172                         DMI_MATCH(DMI_SYS_VENDOR, "SHARP"),
173                         DMI_MATCH(DMI_PRODUCT_NAME, "PC-MM20 Series"),
174                 },
175         },
176         {
177                 .ident = "Sony Vaio FS-115b",
178                 .matches = {
179                         DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
180                         DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FS115B"),
181                 },
182         },
183         { }
184 };
185
186
187
188 #endif
189
190
191 #ifdef CONFIG_PNP
192 #include <linux/pnp.h>
193
194 static int i8042_pnp_kbd_registered;
195 static unsigned int i8042_pnp_kbd_devices;
196 static int i8042_pnp_aux_registered;
197 static unsigned int i8042_pnp_aux_devices;
198
199 static int i8042_pnp_command_reg;
200 static int i8042_pnp_data_reg;
201 static int i8042_pnp_kbd_irq;
202 static int i8042_pnp_aux_irq;
203
204 static char i8042_pnp_kbd_name[32];
205 static char i8042_pnp_aux_name[32];
206
207 static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
208 {
209         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
210                 i8042_pnp_data_reg = pnp_port_start(dev,0);
211
212         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
213                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
214
215         if (pnp_irq_valid(dev,0))
216                 i8042_pnp_kbd_irq = pnp_irq(dev, 0);
217
218         strncpy(i8042_pnp_kbd_name, did->id, sizeof(i8042_pnp_kbd_name));
219         if (strlen(pnp_dev_name(dev))) {
220                 strncat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
221                 strncat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
222         }
223
224         i8042_pnp_kbd_devices++;
225         return 0;
226 }
227
228 static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
229 {
230         if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
231                 i8042_pnp_data_reg = pnp_port_start(dev,0);
232
233         if (pnp_port_valid(dev, 1) && pnp_port_len(dev, 1) == 1)
234                 i8042_pnp_command_reg = pnp_port_start(dev, 1);
235
236         if (pnp_irq_valid(dev, 0))
237                 i8042_pnp_aux_irq = pnp_irq(dev, 0);
238
239         strncpy(i8042_pnp_aux_name, did->id, sizeof(i8042_pnp_aux_name));
240         if (strlen(pnp_dev_name(dev))) {
241                 strncat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
242                 strncat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
243         }
244
245         i8042_pnp_aux_devices++;
246         return 0;
247 }
248
249 static struct pnp_device_id pnp_kbd_devids[] = {
250         { .id = "PNP0303", .driver_data = 0 },
251         { .id = "PNP030b", .driver_data = 0 },
252         { .id = "", },
253 };
254
255 static struct pnp_driver i8042_pnp_kbd_driver = {
256         .name           = "i8042 kbd",
257         .id_table       = pnp_kbd_devids,
258         .probe          = i8042_pnp_kbd_probe,
259 };
260
261 static struct pnp_device_id pnp_aux_devids[] = {
262         { .id = "PNP0f03", .driver_data = 0 },
263         { .id = "PNP0f0b", .driver_data = 0 },
264         { .id = "PNP0f0e", .driver_data = 0 },
265         { .id = "PNP0f12", .driver_data = 0 },
266         { .id = "PNP0f13", .driver_data = 0 },
267         { .id = "PNP0f19", .driver_data = 0 },
268         { .id = "PNP0f1c", .driver_data = 0 },
269         { .id = "SYN0801", .driver_data = 0 },
270         { .id = "", },
271 };
272
273 static struct pnp_driver i8042_pnp_aux_driver = {
274         .name           = "i8042 aux",
275         .id_table       = pnp_aux_devids,
276         .probe          = i8042_pnp_aux_probe,
277 };
278
279 static void i8042_pnp_exit(void)
280 {
281         if (i8042_pnp_kbd_registered) {
282                 i8042_pnp_kbd_registered = 0;
283                 pnp_unregister_driver(&i8042_pnp_kbd_driver);
284         }
285
286         if (i8042_pnp_aux_registered) {
287                 i8042_pnp_aux_registered = 0;
288                 pnp_unregister_driver(&i8042_pnp_aux_driver);
289         }
290 }
291
292 static int __init i8042_pnp_init(void)
293 {
294         char kbd_irq_str[4] = { 0 }, aux_irq_str[4] = { 0 };
295         int err;
296
297         if (i8042_nopnp) {
298                 printk(KERN_INFO "i8042: PNP detection disabled\n");
299                 return 0;
300         }
301
302         err = pnp_register_driver(&i8042_pnp_kbd_driver);
303         if (!err)
304                 i8042_pnp_kbd_registered = 1;
305
306         err = pnp_register_driver(&i8042_pnp_aux_driver);
307         if (!err)
308                 i8042_pnp_aux_registered = 1;
309
310         if (!i8042_pnp_kbd_devices && !i8042_pnp_aux_devices) {
311                 i8042_pnp_exit();
312 #if defined(__ia64__)
313                 return -ENODEV;
314 #else
315                 printk(KERN_INFO "PNP: No PS/2 controller found. Probing ports directly.\n");
316                 return 0;
317 #endif
318         }
319
320         if (i8042_pnp_kbd_devices)
321                 snprintf(kbd_irq_str, sizeof(kbd_irq_str),
322                         "%d", i8042_pnp_kbd_irq);
323         if (i8042_pnp_aux_devices)
324                 snprintf(aux_irq_str, sizeof(aux_irq_str),
325                         "%d", i8042_pnp_aux_irq);
326
327         printk(KERN_INFO "PNP: PS/2 Controller [%s%s%s] at %#x,%#x irq %s%s%s\n",
328                 i8042_pnp_kbd_name, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
329                 i8042_pnp_aux_name,
330                 i8042_pnp_data_reg, i8042_pnp_command_reg,
331                 kbd_irq_str, (i8042_pnp_kbd_devices && i8042_pnp_aux_devices) ? "," : "",
332                 aux_irq_str);
333
334 #if defined(__ia64__)
335         if (!i8042_pnp_kbd_devices)
336                 i8042_nokbd = 1;
337         if (!i8042_pnp_aux_devices)
338                 i8042_noaux = 1;
339 #endif
340
341         if (((i8042_pnp_data_reg & ~0xf) == (i8042_data_reg & ~0xf) &&
342               i8042_pnp_data_reg != i8042_data_reg) || !i8042_pnp_data_reg) {
343                 printk(KERN_WARNING "PNP: PS/2 controller has invalid data port %#x; using default %#x\n",
344                         i8042_pnp_data_reg, i8042_data_reg);
345                 i8042_pnp_data_reg = i8042_data_reg;
346         }
347
348         if (((i8042_pnp_command_reg & ~0xf) == (i8042_command_reg & ~0xf) &&
349               i8042_pnp_command_reg != i8042_command_reg) || !i8042_pnp_command_reg) {
350                 printk(KERN_WARNING "PNP: PS/2 controller has invalid command port %#x; using default %#x\n",
351                         i8042_pnp_command_reg, i8042_command_reg);
352                 i8042_pnp_command_reg = i8042_command_reg;
353         }
354
355         if (!i8042_nokbd && !i8042_pnp_kbd_irq) {
356                 printk(KERN_WARNING "PNP: PS/2 controller doesn't have KBD irq; using default %d\n", i8042_kbd_irq);
357                 i8042_pnp_kbd_irq = i8042_kbd_irq;
358         }
359
360         if (!i8042_noaux && !i8042_pnp_aux_irq) {
361                 printk(KERN_WARNING "PNP: PS/2 controller doesn't have AUX irq; using default %d\n", i8042_aux_irq);
362                 i8042_pnp_aux_irq = i8042_aux_irq;
363         }
364
365         i8042_data_reg = i8042_pnp_data_reg;
366         i8042_command_reg = i8042_pnp_command_reg;
367         i8042_kbd_irq = i8042_pnp_kbd_irq;
368         i8042_aux_irq = i8042_pnp_aux_irq;
369
370         return 0;
371 }
372
373 #else
374 static inline int i8042_pnp_init(void) { return 0; }
375 static inline void i8042_pnp_exit(void) { }
376 #endif
377
378 static int __init i8042_platform_init(void)
379 {
380         int retval;
381
382 /*
383  * On ix86 platforms touching the i8042 data register region can do really
384  * bad things. Because of this the region is always reserved on ix86 boxes.
385  *
386  *      if (!request_region(I8042_DATA_REG, 16, "i8042"))
387  *              return -EBUSY;
388  */
389
390         i8042_kbd_irq = I8042_MAP_IRQ(1);
391         i8042_aux_irq = I8042_MAP_IRQ(12);
392
393         retval = i8042_pnp_init();
394         if (retval)
395                 return retval;
396
397 #if defined(__ia64__)
398         i8042_reset = 1;
399 #endif
400
401 #if defined(__i386__)
402         if (dmi_check_system(i8042_dmi_noloop_table))
403                 i8042_noloop = 1;
404
405         if (dmi_check_system(i8042_dmi_nomux_table))
406                 i8042_nomux = 1;
407 #endif
408
409         return retval;
410 }
411
412 static inline void i8042_platform_exit(void)
413 {
414         i8042_pnp_exit();
415 }
416
417 #endif /* _I8042_X86IA64IO_H */