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uml: host_info tidying
[linux-2.6/mini2440.git] / drivers / misc / sony-laptop.c
blobc15c1f61bd1bfad853b8c6ea343d6cdd47e98135
1 /*
2 * ACPI Sony Notebook Control Driver (SNC and SPIC)
3 *
4 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
5 * Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
6 *
7 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
8 * which are copyrighted by their respective authors.
9 *
10 * The SNY6001 driver part is based on the sonypi driver which includes
11 * material from:
12 *
13 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
14 *
15 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
16 *
17 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
18 *
19 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
20 *
21 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
22 *
23 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
24 *
25 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
26 *
27 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
28 *
29 * This program is free software; you can redistribute it and/or modify
30 * it under the terms of the GNU General Public License as published by
31 * the Free Software Foundation; either version 2 of the License, or
32 * (at your option) any later version.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * You should have received a copy of the GNU General Public License
40 * along with this program; if not, write to the Free Software
41 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
42 *
43 */
44
45 #include <linux/kernel.h>
46 #include <linux/module.h>
47 #include <linux/moduleparam.h>
48 #include <linux/init.h>
49 #include <linux/types.h>
50 #include <linux/backlight.h>
51 #include <linux/platform_device.h>
52 #include <linux/err.h>
53 #include <linux/dmi.h>
54 #include <linux/pci.h>
55 #include <linux/interrupt.h>
56 #include <linux/delay.h>
57 #include <linux/input.h>
58 #include <linux/kfifo.h>
59 #include <linux/workqueue.h>
60 #include <linux/acpi.h>
61 #include <acpi/acpi_drivers.h>
62 #include <acpi/acpi_bus.h>
63 #include <asm/uaccess.h>
64 #include <linux/sonypi.h>
65 #include <linux/sony-laptop.h>
66 #ifdef CONFIG_SONY_LAPTOP_OLD
67 #include <linux/poll.h>
68 #include <linux/miscdevice.h>
69 #endif
70
71 #define DRV_PFX "sony-laptop: "
72 #define dprintk(msg...) do { \
73 if (debug) printk(KERN_WARNING DRV_PFX msg); \
74 } while (0)
75
76 #define SONY_LAPTOP_DRIVER_VERSION "0.5"
77
78 #define SONY_NC_CLASS "sony-nc"
79 #define SONY_NC_HID "SNY5001"
80 #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
81
82 #define SONY_PIC_CLASS "sony-pic"
83 #define SONY_PIC_HID "SNY6001"
84 #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
85
86 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
87 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
88 MODULE_LICENSE("GPL");
89 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
90
91 static int debug;
92 module_param(debug, int, 0);
93 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
94 "the development of this driver");
95
96 static int no_spic; /* = 0 */
97 module_param(no_spic, int, 0444);
98 MODULE_PARM_DESC(no_spic,
99 "set this if you don't want to enable the SPIC device");
100
101 static int compat; /* = 0 */
102 module_param(compat, int, 0444);
103 MODULE_PARM_DESC(compat,
104 "set this if you want to enable backward compatibility mode");
105
106 static unsigned long mask = 0xffffffff;
107 module_param(mask, ulong, 0644);
108 MODULE_PARM_DESC(mask,
109 "set this to the mask of event you want to enable (see doc)");
110
111 static int camera; /* = 0 */
112 module_param(camera, int, 0444);
113 MODULE_PARM_DESC(camera,
114 "set this to 1 to enable Motion Eye camera controls "
115 "(only use it if you have a C1VE or C1VN model)");
116
117 #ifdef CONFIG_SONY_LAPTOP_OLD
118 static int minor = -1;
119 module_param(minor, int, 0);
120 MODULE_PARM_DESC(minor,
121 "minor number of the misc device for the SPIC compatibility code, "
122 "default is -1 (automatic)");
123 #endif
124
125 /*********** Input Devices ***********/
126
127 #define SONY_LAPTOP_BUF_SIZE 128
128 struct sony_laptop_input_s {
129 atomic_t users;
130 struct input_dev *jog_dev;
131 struct input_dev *key_dev;
132 struct kfifo *fifo;
133 spinlock_t fifo_lock;
134 struct workqueue_struct *wq;
135 };
136 static struct sony_laptop_input_s sony_laptop_input = {
137 .users = ATOMIC_INIT(0),
138 };
139
140 struct sony_laptop_keypress {
141 struct input_dev *dev;
142 int key;
143 };
144
145 /* Correspondance table between sonypi events and input layer events */
146 static struct {
147 int sonypiev;
148 int inputev;
149 } sony_laptop_inputkeys[] = {
150 { SONYPI_EVENT_CAPTURE_PRESSED, KEY_CAMERA },
151 { SONYPI_EVENT_FNKEY_ONLY, KEY_FN },
152 { SONYPI_EVENT_FNKEY_ESC, KEY_FN_ESC },
153 { SONYPI_EVENT_FNKEY_F1, KEY_FN_F1 },
154 { SONYPI_EVENT_FNKEY_F2, KEY_FN_F2 },
155 { SONYPI_EVENT_FNKEY_F3, KEY_FN_F3 },
156 { SONYPI_EVENT_FNKEY_F4, KEY_FN_F4 },
157 { SONYPI_EVENT_FNKEY_F5, KEY_FN_F5 },
158 { SONYPI_EVENT_FNKEY_F6, KEY_FN_F6 },
159 { SONYPI_EVENT_FNKEY_F7, KEY_FN_F7 },
160 { SONYPI_EVENT_FNKEY_F8, KEY_FN_F8 },
161 { SONYPI_EVENT_FNKEY_F9, KEY_FN_F9 },
162 { SONYPI_EVENT_FNKEY_F10, KEY_FN_F10 },
163 { SONYPI_EVENT_FNKEY_F11, KEY_FN_F11 },
164 { SONYPI_EVENT_FNKEY_F12, KEY_FN_F12 },
165 { SONYPI_EVENT_FNKEY_1, KEY_FN_1 },
166 { SONYPI_EVENT_FNKEY_2, KEY_FN_2 },
167 { SONYPI_EVENT_FNKEY_D, KEY_FN_D },
168 { SONYPI_EVENT_FNKEY_E, KEY_FN_E },
169 { SONYPI_EVENT_FNKEY_F, KEY_FN_F },
170 { SONYPI_EVENT_FNKEY_S, KEY_FN_S },
171 { SONYPI_EVENT_FNKEY_B, KEY_FN_B },
172 { SONYPI_EVENT_BLUETOOTH_PRESSED, KEY_BLUE },
173 { SONYPI_EVENT_BLUETOOTH_ON, KEY_BLUE },
174 { SONYPI_EVENT_PKEY_P1, KEY_PROG1 },
175 { SONYPI_EVENT_PKEY_P2, KEY_PROG2 },
176 { SONYPI_EVENT_PKEY_P3, KEY_PROG3 },
177 { SONYPI_EVENT_BACK_PRESSED, KEY_BACK },
178 { SONYPI_EVENT_HELP_PRESSED, KEY_HELP },
179 { SONYPI_EVENT_ZOOM_PRESSED, KEY_ZOOM },
180 { SONYPI_EVENT_THUMBPHRASE_PRESSED, BTN_THUMB },
181 { 0, 0 },
182 };
183
184 /* release buttons after a short delay if pressed */
185 static void do_sony_laptop_release_key(struct work_struct *work)
186 {
187 struct sony_laptop_keypress kp;
188
189 while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
190 sizeof(kp)) == sizeof(kp)) {
191 msleep(10);
192 input_report_key(kp.dev, kp.key, 0);
193 input_sync(kp.dev);
194 }
195 }
196 static DECLARE_WORK(sony_laptop_release_key_work,
197 do_sony_laptop_release_key);
198
199 /* forward event to the input subsytem */
200 static void sony_laptop_report_input_event(u8 event)
201 {
202 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
203 struct input_dev *key_dev = sony_laptop_input.key_dev;
204 struct sony_laptop_keypress kp = { NULL };
205 int i;
206
207 if (event == SONYPI_EVENT_FNKEY_RELEASED) {
208 /* Nothing, not all VAIOs generate this event */
209 return;
210 }
211
212 /* report events */
213 switch (event) {
214 /* jog_dev events */
215 case SONYPI_EVENT_JOGDIAL_UP:
216 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
217 input_report_rel(jog_dev, REL_WHEEL, 1);
218 input_sync(jog_dev);
219 return;
220
221 case SONYPI_EVENT_JOGDIAL_DOWN:
222 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
223 input_report_rel(jog_dev, REL_WHEEL, -1);
224 input_sync(jog_dev);
225 return;
226
227 /* key_dev events */
228 case SONYPI_EVENT_JOGDIAL_PRESSED:
229 kp.key = BTN_MIDDLE;
230 kp.dev = jog_dev;
231 break;
232
233 default:
234 for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
235 if (event == sony_laptop_inputkeys[i].sonypiev) {
236 kp.dev = key_dev;
237 kp.key = sony_laptop_inputkeys[i].inputev;
238 break;
239 }
240 break;
241 }
242
243 if (kp.dev) {
244 input_report_key(kp.dev, kp.key, 1);
245 input_sync(kp.dev);
246 kfifo_put(sony_laptop_input.fifo,
247 (unsigned char *)&kp, sizeof(kp));
248
249 if (!work_pending(&sony_laptop_release_key_work))
250 queue_work(sony_laptop_input.wq,
251 &sony_laptop_release_key_work);
252 } else
253 dprintk("unknown input event %.2x\n", event);
254 }
255
256 static int sony_laptop_setup_input(void)
257 {
258 struct input_dev *jog_dev;
259 struct input_dev *key_dev;
260 int i;
261 int error;
262
263 /* don't run again if already initialized */
264 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
265 return 0;
266
267 /* kfifo */
268 spin_lock_init(&sony_laptop_input.fifo_lock);
269 sony_laptop_input.fifo =
270 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
271 &sony_laptop_input.fifo_lock);
272 if (IS_ERR(sony_laptop_input.fifo)) {
273 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
274 error = PTR_ERR(sony_laptop_input.fifo);
275 goto err_dec_users;
276 }
277
278 /* init workqueue */
279 sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
280 if (!sony_laptop_input.wq) {
281 printk(KERN_ERR DRV_PFX
282 "Unabe to create workqueue.\n");
283 error = -ENXIO;
284 goto err_free_kfifo;
285 }
286
287 /* input keys */
288 key_dev = input_allocate_device();
289 if (!key_dev) {
290 error = -ENOMEM;
291 goto err_destroy_wq;
292 }
293
294 key_dev->name = "Sony Vaio Keys";
295 key_dev->id.bustype = BUS_ISA;
296 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
297
298 /* Initialize the Input Drivers: special keys */
299 key_dev->evbit[0] = BIT(EV_KEY);
300 for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
301 if (sony_laptop_inputkeys[i].inputev)
302 set_bit(sony_laptop_inputkeys[i].inputev,
303 key_dev->keybit);
304
305 error = input_register_device(key_dev);
306 if (error)
307 goto err_free_keydev;
308
309 sony_laptop_input.key_dev = key_dev;
310
311 /* jogdial */
312 jog_dev = input_allocate_device();
313 if (!jog_dev) {
314 error = -ENOMEM;
315 goto err_unregister_keydev;
316 }
317
318 jog_dev->name = "Sony Vaio Jogdial";
319 jog_dev->id.bustype = BUS_ISA;
320 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
321
322 jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
323 jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
324 jog_dev->relbit[0] = BIT(REL_WHEEL);
325
326 error = input_register_device(jog_dev);
327 if (error)
328 goto err_free_jogdev;
329
330 sony_laptop_input.jog_dev = jog_dev;
331
332 return 0;
333
334 err_free_jogdev:
335 input_free_device(jog_dev);
336
337 err_unregister_keydev:
338 input_unregister_device(key_dev);
339 /* to avoid kref underflow below at input_free_device */
340 key_dev = NULL;
341
342 err_free_keydev:
343 input_free_device(key_dev);
344
345 err_destroy_wq:
346 destroy_workqueue(sony_laptop_input.wq);
347
348 err_free_kfifo:
349 kfifo_free(sony_laptop_input.fifo);
350
351 err_dec_users:
352 atomic_dec(&sony_laptop_input.users);
353 return error;
354 }
355
356 static void sony_laptop_remove_input(void)
357 {
358 /* cleanup only after the last user has gone */
359 if (!atomic_dec_and_test(&sony_laptop_input.users))
360 return;
361
362 /* flush workqueue first */
363 flush_workqueue(sony_laptop_input.wq);
364
365 /* destroy input devs */
366 input_unregister_device(sony_laptop_input.key_dev);
367 sony_laptop_input.key_dev = NULL;
368
369 if (sony_laptop_input.jog_dev) {
370 input_unregister_device(sony_laptop_input.jog_dev);
371 sony_laptop_input.jog_dev = NULL;
372 }
373
374 destroy_workqueue(sony_laptop_input.wq);
375 kfifo_free(sony_laptop_input.fifo);
376 }
377
378 /*********** Platform Device ***********/
379
380 static atomic_t sony_pf_users = ATOMIC_INIT(0);
381 static struct platform_driver sony_pf_driver = {
382 .driver = {
383 .name = "sony-laptop",
384 .owner = THIS_MODULE,
385 }
386 };
387 static struct platform_device *sony_pf_device;
388
389 static int sony_pf_add(void)
390 {
391 int ret = 0;
392
393 /* don't run again if already initialized */
394 if (atomic_add_return(1, &sony_pf_users) > 1)
395 return 0;
396
397 ret = platform_driver_register(&sony_pf_driver);
398 if (ret)
399 goto out;
400
401 sony_pf_device = platform_device_alloc("sony-laptop", -1);
402 if (!sony_pf_device) {
403 ret = -ENOMEM;
404 goto out_platform_registered;
405 }
406
407 ret = platform_device_add(sony_pf_device);
408 if (ret)
409 goto out_platform_alloced;
410
411 return 0;
412
413 out_platform_alloced:
414 platform_device_put(sony_pf_device);
415 sony_pf_device = NULL;
416 out_platform_registered:
417 platform_driver_unregister(&sony_pf_driver);
418 out:
419 atomic_dec(&sony_pf_users);
420 return ret;
421 }
422
423 static void sony_pf_remove(void)
424 {
425 /* deregister only after the last user has gone */
426 if (!atomic_dec_and_test(&sony_pf_users))
427 return;
428
429 platform_device_del(sony_pf_device);
430 platform_device_put(sony_pf_device);
431 platform_driver_unregister(&sony_pf_driver);
432 }
433
434 /*********** SNC (SNY5001) Device ***********/
435
436 /* the device uses 1-based values, while the backlight subsystem uses
437 0-based values */
438 #define SONY_MAX_BRIGHTNESS 8
439
440 #define SNC_VALIDATE_IN 0
441 #define SNC_VALIDATE_OUT 1
442
443 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
444 char *);
445 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
446 const char *, size_t);
447 static int boolean_validate(const int, const int);
448 static int brightness_default_validate(const int, const int);
449
450 struct sony_nc_value {
451 char *name; /* name of the entry */
452 char **acpiget; /* names of the ACPI get function */
453 char **acpiset; /* names of the ACPI set function */
454 int (*validate)(const int, const int); /* input/output validation */
455 int value; /* current setting */
456 int valid; /* Has ever been set */
457 int debug; /* active only in debug mode ? */
458 struct device_attribute devattr; /* sysfs atribute */
459 };
460
461 #define SNC_HANDLE_NAMES(_name, _values...) \
462 static char *snc_##_name[] = { _values, NULL }
463
464 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
465 { \
466 .name = __stringify(_name), \
467 .acpiget = _getters, \
468 .acpiset = _setters, \
469 .validate = _validate, \
470 .debug = _debug, \
471 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
472 }
473
474 #define SNC_HANDLE_NULL { .name = NULL }
475
476 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
477
478 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
479 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
480
481 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
482 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
483
484 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
485 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
486
487 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
488 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
489
490 SNC_HANDLE_NAMES(PID_get, "GPID");
491
492 SNC_HANDLE_NAMES(CTR_get, "GCTR");
493 SNC_HANDLE_NAMES(CTR_set, "SCTR");
494
495 SNC_HANDLE_NAMES(PCR_get, "GPCR");
496 SNC_HANDLE_NAMES(PCR_set, "SPCR");
497
498 SNC_HANDLE_NAMES(CMI_get, "GCMI");
499 SNC_HANDLE_NAMES(CMI_set, "SCMI");
500
501 static struct sony_nc_value sony_nc_values[] = {
502 SNC_HANDLE(brightness_default, snc_brightness_def_get,
503 snc_brightness_def_set, brightness_default_validate, 0),
504 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
505 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
506 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
507 boolean_validate, 0),
508 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
509 boolean_validate, 1),
510 /* unknown methods */
511 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
512 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
513 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
514 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
515 SNC_HANDLE_NULL
516 };
517
518 static acpi_handle sony_nc_acpi_handle;
519 static struct acpi_device *sony_nc_acpi_device = NULL;
520
521 /*
522 * acpi_evaluate_object wrappers
523 */
524 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
525 {
526 struct acpi_buffer output;
527 union acpi_object out_obj;
528 acpi_status status;
529
530 output.length = sizeof(out_obj);
531 output.pointer = &out_obj;
532
533 status = acpi_evaluate_object(handle, name, NULL, &output);
534 if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
535 *result = out_obj.integer.value;
536 return 0;
537 }
538
539 printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
540
541 return -1;
542 }
543
544 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
545 int *result)
546 {
547 struct acpi_object_list params;
548 union acpi_object in_obj;
549 struct acpi_buffer output;
550 union acpi_object out_obj;
551 acpi_status status;
552
553 params.count = 1;
554 params.pointer = &in_obj;
555 in_obj.type = ACPI_TYPE_INTEGER;
556 in_obj.integer.value = value;
557
558 output.length = sizeof(out_obj);
559 output.pointer = &out_obj;
560
561 status = acpi_evaluate_object(handle, name, &params, &output);
562 if (status == AE_OK) {
563 if (result != NULL) {
564 if (out_obj.type != ACPI_TYPE_INTEGER) {
565 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
566 "return type\n");
567 return -1;
568 }
569 *result = out_obj.integer.value;
570 }
571 return 0;
572 }
573
574 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
575
576 return -1;
577 }
578
579 /*
580 * sony_nc_values input/output validate functions
581 */
582
583 /* brightness_default_validate:
584 *
585 * manipulate input output values to keep consistency with the
586 * backlight framework for which brightness values are 0-based.
587 */
588 static int brightness_default_validate(const int direction, const int value)
589 {
590 switch (direction) {
591 case SNC_VALIDATE_OUT:
592 return value - 1;
593 case SNC_VALIDATE_IN:
594 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
595 return value + 1;
596 }
597 return -EINVAL;
598 }
599
600 /* boolean_validate:
601 *
602 * on input validate boolean values 0/1, on output just pass the
603 * received value.
604 */
605 static int boolean_validate(const int direction, const int value)
606 {
607 if (direction == SNC_VALIDATE_IN) {
608 if (value != 0 && value != 1)
609 return -EINVAL;
610 }
611 return value;
612 }
613
614 /*
615 * Sysfs show/store common to all sony_nc_values
616 */
617 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
618 char *buffer)
619 {
620 int value;
621 struct sony_nc_value *item =
622 container_of(attr, struct sony_nc_value, devattr);
623
624 if (!*item->acpiget)
625 return -EIO;
626
627 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
628 return -EIO;
629
630 if (item->validate)
631 value = item->validate(SNC_VALIDATE_OUT, value);
632
633 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
634 }
635
636 static ssize_t sony_nc_sysfs_store(struct device *dev,
637 struct device_attribute *attr,
638 const char *buffer, size_t count)
639 {
640 int value;
641 struct sony_nc_value *item =
642 container_of(attr, struct sony_nc_value, devattr);
643
644 if (!item->acpiset)
645 return -EIO;
646
647 if (count > 31)
648 return -EINVAL;
649
650 value = simple_strtoul(buffer, NULL, 10);
651
652 if (item->validate)
653 value = item->validate(SNC_VALIDATE_IN, value);
654
655 if (value < 0)
656 return value;
657
658 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
659 return -EIO;
660 item->value = value;
661 item->valid = 1;
662 return count;
663 }
664
665
666 /*
667 * Backlight device
668 */
669 static int sony_backlight_update_status(struct backlight_device *bd)
670 {
671 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
672 bd->props.brightness + 1, NULL);
673 }
674
675 static int sony_backlight_get_brightness(struct backlight_device *bd)
676 {
677 int value;
678
679 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
680 return 0;
681 /* brightness levels are 1-based, while backlight ones are 0-based */
682 return value - 1;
683 }
684
685 static struct backlight_device *sony_backlight_device;
686 static struct backlight_ops sony_backlight_ops = {
687 .update_status = sony_backlight_update_status,
688 .get_brightness = sony_backlight_get_brightness,
689 };
690
691 /*
692 * ACPI callbacks
693 */
694 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
695 {
696 dprintk("sony_acpi_notify, event: %d\n", event);
697 sony_laptop_report_input_event(event);
698 acpi_bus_generate_event(sony_nc_acpi_device, 1, event);
699 }
700
701 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
702 void *context, void **return_value)
703 {
704 struct acpi_namespace_node *node;
705 union acpi_operand_object *operand;
706
707 node = (struct acpi_namespace_node *)handle;
708 operand = (union acpi_operand_object *)node->object;
709
710 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
711 (u32) operand->method.param_count);
712
713 return AE_OK;
714 }
715
716 /*
717 * ACPI device
718 */
719 static int sony_nc_resume(struct acpi_device *device)
720 {
721 struct sony_nc_value *item;
722
723 for (item = sony_nc_values; item->name; item++) {
724 int ret;
725
726 if (!item->valid)
727 continue;
728 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
729 item->value, NULL);
730 if (ret < 0) {
731 printk("%s: %d\n", __FUNCTION__, ret);
732 break;
733 }
734 }
735 return 0;
736 }
737
738 static int sony_nc_add(struct acpi_device *device)
739 {
740 acpi_status status;
741 int result = 0;
742 acpi_handle handle;
743 struct sony_nc_value *item;
744
745 printk(KERN_INFO DRV_PFX "%s v%s.\n",
746 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
747
748 sony_nc_acpi_device = device;
749 strcpy(acpi_device_class(device), "sony/hotkey");
750
751 sony_nc_acpi_handle = device->handle;
752
753 if (debug) {
754 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
755 1, sony_walk_callback, NULL, NULL);
756 if (ACPI_FAILURE(status)) {
757 printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
758 result = -ENODEV;
759 goto outwalk;
760 }
761 }
762
763 /* setup input devices and helper fifo */
764 result = sony_laptop_setup_input();
765 if (result) {
766 printk(KERN_ERR DRV_PFX
767 "Unabe to create input devices.\n");
768 goto outwalk;
769 }
770
771 status = acpi_install_notify_handler(sony_nc_acpi_handle,
772 ACPI_DEVICE_NOTIFY,
773 sony_acpi_notify, NULL);
774 if (ACPI_FAILURE(status)) {
775 printk(KERN_WARNING DRV_PFX "unable to install notify handler\n");
776 result = -ENODEV;
777 goto outinput;
778 }
779
780 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
781 sony_backlight_device = backlight_device_register("sony", NULL,
782 NULL,
783 &sony_backlight_ops);
784
785 if (IS_ERR(sony_backlight_device)) {
786 printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
787 sony_backlight_device = NULL;
788 } else {
789 sony_backlight_device->props.brightness =
790 sony_backlight_get_brightness
791 (sony_backlight_device);
792 sony_backlight_device->props.max_brightness =
793 SONY_MAX_BRIGHTNESS - 1;
794 }
795
796 }
797
798 result = sony_pf_add();
799 if (result)
800 goto outbacklight;
801
802 /* create sony_pf sysfs attributes related to the SNC device */
803 for (item = sony_nc_values; item->name; ++item) {
804
805 if (!debug && item->debug)
806 continue;
807
808 /* find the available acpiget as described in the DSDT */
809 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
810 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
811 *item->acpiget,
812 &handle))) {
813 dprintk("Found %s getter: %s\n",
814 item->name, *item->acpiget);
815 item->devattr.attr.mode |= S_IRUGO;
816 break;
817 }
818 }
819
820 /* find the available acpiset as described in the DSDT */
821 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
822 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
823 *item->acpiset,
824 &handle))) {
825 dprintk("Found %s setter: %s\n",
826 item->name, *item->acpiset);
827 item->devattr.attr.mode |= S_IWUSR;
828 break;
829 }
830 }
831
832 if (item->devattr.attr.mode != 0) {
833 result =
834 device_create_file(&sony_pf_device->dev,
835 &item->devattr);
836 if (result)
837 goto out_sysfs;
838 }
839 }
840
841 return 0;
842
843 out_sysfs:
844 for (item = sony_nc_values; item->name; ++item) {
845 device_remove_file(&sony_pf_device->dev, &item->devattr);
846 }
847 sony_pf_remove();
848
849 outbacklight:
850 if (sony_backlight_device)
851 backlight_device_unregister(sony_backlight_device);
852
853 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
854 ACPI_DEVICE_NOTIFY,
855 sony_acpi_notify);
856 if (ACPI_FAILURE(status))
857 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
858
859 outinput:
860 sony_laptop_remove_input();
861
862 outwalk:
863 return result;
864 }
865
866 static int sony_nc_remove(struct acpi_device *device, int type)
867 {
868 acpi_status status;
869 struct sony_nc_value *item;
870
871 if (sony_backlight_device)
872 backlight_device_unregister(sony_backlight_device);
873
874 sony_nc_acpi_device = NULL;
875
876 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
877 ACPI_DEVICE_NOTIFY,
878 sony_acpi_notify);
879 if (ACPI_FAILURE(status))
880 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
881
882 for (item = sony_nc_values; item->name; ++item) {
883 device_remove_file(&sony_pf_device->dev, &item->devattr);
884 }
885
886 sony_pf_remove();
887 sony_laptop_remove_input();
888 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
889
890 return 0;
891 }
892
893 static struct acpi_driver sony_nc_driver = {
894 .name = SONY_NC_DRIVER_NAME,
895 .class = SONY_NC_CLASS,
896 .ids = SONY_NC_HID,
897 .owner = THIS_MODULE,
898 .ops = {
899 .add = sony_nc_add,
900 .remove = sony_nc_remove,
901 .resume = sony_nc_resume,
902 },
903 };
904
905 /*********** SPIC (SNY6001) Device ***********/
906
907 #define SONYPI_DEVICE_TYPE1 0x00000001
908 #define SONYPI_DEVICE_TYPE2 0x00000002
909 #define SONYPI_DEVICE_TYPE3 0x00000004
910
911 #define SONY_PIC_EV_MASK 0xff
912
913 struct sony_pic_ioport {
914 struct acpi_resource_io io;
915 struct list_head list;
916 };
917
918 struct sony_pic_irq {
919 struct acpi_resource_irq irq;
920 struct list_head list;
921 };
922
923 struct sony_pic_dev {
924 int model;
925 u8 camera_power;
926 u8 bluetooth_power;
927 u8 wwan_power;
928 struct acpi_device *acpi_dev;
929 struct sony_pic_irq *cur_irq;
930 struct sony_pic_ioport *cur_ioport;
931 struct list_head interrupts;
932 struct list_head ioports;
933 struct mutex lock;
934 };
935
936 static struct sony_pic_dev spic_dev = {
937 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
938 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
939 };
940
941 /* Event masks */
942 #define SONYPI_JOGGER_MASK 0x00000001
943 #define SONYPI_CAPTURE_MASK 0x00000002
944 #define SONYPI_FNKEY_MASK 0x00000004
945 #define SONYPI_BLUETOOTH_MASK 0x00000008
946 #define SONYPI_PKEY_MASK 0x00000010
947 #define SONYPI_BACK_MASK 0x00000020
948 #define SONYPI_HELP_MASK 0x00000040
949 #define SONYPI_LID_MASK 0x00000080
950 #define SONYPI_ZOOM_MASK 0x00000100
951 #define SONYPI_THUMBPHRASE_MASK 0x00000200
952 #define SONYPI_MEYE_MASK 0x00000400
953 #define SONYPI_MEMORYSTICK_MASK 0x00000800
954 #define SONYPI_BATTERY_MASK 0x00001000
955 #define SONYPI_WIRELESS_MASK 0x00002000
956
957 struct sonypi_event {
958 u8 data;
959 u8 event;
960 };
961
962 /* The set of possible button release events */
963 static struct sonypi_event sonypi_releaseev[] = {
964 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
965 { 0, 0 }
966 };
967
968 /* The set of possible jogger events */
969 static struct sonypi_event sonypi_joggerev[] = {
970 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
971 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
972 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
973 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
974 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
975 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
976 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
977 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
978 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
979 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
980 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
981 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
982 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
983 { 0, 0 }
984 };
985
986 /* The set of possible capture button events */
987 static struct sonypi_event sonypi_captureev[] = {
988 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
989 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
990 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
991 { 0, 0 }
992 };
993
994 /* The set of possible fnkeys events */
995 static struct sonypi_event sonypi_fnkeyev[] = {
996 { 0x10, SONYPI_EVENT_FNKEY_ESC },
997 { 0x11, SONYPI_EVENT_FNKEY_F1 },
998 { 0x12, SONYPI_EVENT_FNKEY_F2 },
999 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1000 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1001 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1002 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1003 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1004 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1005 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1006 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1007 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1008 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1009 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1010 { 0x21, SONYPI_EVENT_FNKEY_1 },
1011 { 0x22, SONYPI_EVENT_FNKEY_2 },
1012 { 0x31, SONYPI_EVENT_FNKEY_D },
1013 { 0x32, SONYPI_EVENT_FNKEY_E },
1014 { 0x33, SONYPI_EVENT_FNKEY_F },
1015 { 0x34, SONYPI_EVENT_FNKEY_S },
1016 { 0x35, SONYPI_EVENT_FNKEY_B },
1017 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1018 { 0, 0 }
1019 };
1020
1021 /* The set of possible program key events */
1022 static struct sonypi_event sonypi_pkeyev[] = {
1023 { 0x01, SONYPI_EVENT_PKEY_P1 },
1024 { 0x02, SONYPI_EVENT_PKEY_P2 },
1025 { 0x04, SONYPI_EVENT_PKEY_P3 },
1026 { 0x5c, SONYPI_EVENT_PKEY_P1 },
1027 { 0, 0 }
1028 };
1029
1030 /* The set of possible bluetooth events */
1031 static struct sonypi_event sonypi_blueev[] = {
1032 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1033 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1034 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1035 { 0, 0 }
1036 };
1037
1038 /* The set of possible wireless events */
1039 static struct sonypi_event sonypi_wlessev[] = {
1040 { 0x59, SONYPI_EVENT_WIRELESS_ON },
1041 { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1042 { 0, 0 }
1043 };
1044
1045 /* The set of possible back button events */
1046 static struct sonypi_event sonypi_backev[] = {
1047 { 0x20, SONYPI_EVENT_BACK_PRESSED },
1048 { 0, 0 }
1049 };
1050
1051 /* The set of possible help button events */
1052 static struct sonypi_event sonypi_helpev[] = {
1053 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1054 { 0, 0 }
1055 };
1056
1057
1058 /* The set of possible lid events */
1059 static struct sonypi_event sonypi_lidev[] = {
1060 { 0x51, SONYPI_EVENT_LID_CLOSED },
1061 { 0x50, SONYPI_EVENT_LID_OPENED },
1062 { 0, 0 }
1063 };
1064
1065 /* The set of possible zoom events */
1066 static struct sonypi_event sonypi_zoomev[] = {
1067 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1068 { 0, 0 }
1069 };
1070
1071 /* The set of possible thumbphrase events */
1072 static struct sonypi_event sonypi_thumbphraseev[] = {
1073 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1074 { 0, 0 }
1075 };
1076
1077 /* The set of possible motioneye camera events */
1078 static struct sonypi_event sonypi_meyeev[] = {
1079 { 0x00, SONYPI_EVENT_MEYE_FACE },
1080 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1081 { 0, 0 }
1082 };
1083
1084 /* The set of possible memorystick events */
1085 static struct sonypi_event sonypi_memorystickev[] = {
1086 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1087 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1088 { 0, 0 }
1089 };
1090
1091 /* The set of possible battery events */
1092 static struct sonypi_event sonypi_batteryev[] = {
1093 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1094 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1095 { 0, 0 }
1096 };
1097
1098 static struct sonypi_eventtypes {
1099 int model;
1100 u8 data;
1101 unsigned long mask;
1102 struct sonypi_event * events;
1103 } sony_pic_eventtypes[] = {
1104 { SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
1105 { SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1106 { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
1107 { SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1108 { SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1109 { SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1110 { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1111 { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1112 { SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1113 { SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1114
1115 { SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
1116 { SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
1117 { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1118 { SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1119 { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1120 { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1121 { SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1122 { SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
1123 { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1124 { SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1125 { SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1126 { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1127 { SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1128 { SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1129
1130 { SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
1131 { SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1132 { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1133 { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1134 { SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1135 { SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1136 { 0 }
1137 };
1138
1139 static int sony_pic_detect_device_type(void)
1140 {
1141 struct pci_dev *pcidev;
1142 int model = 0;
1143
1144 if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1145 PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
1146 model = SONYPI_DEVICE_TYPE1;
1147
1148 else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1149 PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
1150 model = SONYPI_DEVICE_TYPE3;
1151
1152 else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1153 PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
1154 model = SONYPI_DEVICE_TYPE3;
1155
1156 else
1157 model = SONYPI_DEVICE_TYPE2;
1158
1159 if (pcidev)
1160 pci_dev_put(pcidev);
1161
1162 printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1163 model == SONYPI_DEVICE_TYPE1 ? 1 :
1164 model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
1165 return model;
1166 }
1167
1168 #define ITERATIONS_LONG 10000
1169 #define ITERATIONS_SHORT 10
1170 #define wait_on_command(command, iterations) { \
1171 unsigned int n = iterations; \
1172 while (--n && (command)) \
1173 udelay(1); \
1174 if (!n) \
1175 dprintk("command failed at %s : %s (line %d)\n", \
1176 __FILE__, __FUNCTION__, __LINE__); \
1177 }
1178
1179 static u8 sony_pic_call1(u8 dev)
1180 {
1181 u8 v1, v2;
1182
1183 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1184 ITERATIONS_LONG);
1185 outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1186 v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
1187 v2 = inb_p(spic_dev.cur_ioport->io.minimum);
1188 dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
1189 return v2;
1190 }
1191
1192 static u8 sony_pic_call2(u8 dev, u8 fn)
1193 {
1194 u8 v1;
1195
1196 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1197 ITERATIONS_LONG);
1198 outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1199 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
1200 ITERATIONS_LONG);
1201 outb(fn, spic_dev.cur_ioport->io.minimum);
1202 v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1203 dprintk("sony_pic_call2: 0x%.4x\n", v1);
1204 return v1;
1205 }
1206
1207 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1208 {
1209 u8 v1;
1210
1211 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1212 outb(dev, spic_dev.cur_ioport->io.minimum + 4);
1213 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1214 outb(fn, spic_dev.cur_ioport->io.minimum);
1215 wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
1216 outb(v, spic_dev.cur_ioport->io.minimum);
1217 v1 = inb_p(spic_dev.cur_ioport->io.minimum);
1218 dprintk("sony_pic_call3: 0x%.4x\n", v1);
1219 return v1;
1220 }
1221
1222 /* camera tests and poweron/poweroff */
1223 #define SONYPI_CAMERA_PICTURE 5
1224 #define SONYPI_CAMERA_CONTROL 0x10
1225
1226 #define SONYPI_CAMERA_BRIGHTNESS 0
1227 #define SONYPI_CAMERA_CONTRAST 1
1228 #define SONYPI_CAMERA_HUE 2
1229 #define SONYPI_CAMERA_COLOR 3
1230 #define SONYPI_CAMERA_SHARPNESS 4
1231
1232 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
1233 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
1234 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
1235 #define SONYPI_CAMERA_MUTE_MASK 0x40
1236
1237 /* the rest don't need a loop until not 0xff */
1238 #define SONYPI_CAMERA_AGC 6
1239 #define SONYPI_CAMERA_AGC_MASK 0x30
1240 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
1241
1242 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
1243 #define SONYPI_CAMERA_CONTROL 0x10
1244
1245 #define SONYPI_CAMERA_STATUS 7
1246 #define SONYPI_CAMERA_STATUS_READY 0x2
1247 #define SONYPI_CAMERA_STATUS_POSITION 0x4
1248
1249 #define SONYPI_DIRECTION_BACKWARDS 0x4
1250
1251 #define SONYPI_CAMERA_REVISION 8
1252 #define SONYPI_CAMERA_ROMVERSION 9
1253
1254 static int __sony_pic_camera_ready(void)
1255 {
1256 u8 v;
1257
1258 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1259 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1260 }
1261
1262 static int __sony_pic_camera_off(void)
1263 {
1264 if (!camera) {
1265 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1266 return -ENODEV;
1267 }
1268
1269 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1270 SONYPI_CAMERA_MUTE_MASK),
1271 ITERATIONS_SHORT);
1272
1273 if (spic_dev.camera_power) {
1274 sony_pic_call2(0x91, 0);
1275 spic_dev.camera_power = 0;
1276 }
1277 return 0;
1278 }
1279
1280 static int __sony_pic_camera_on(void)
1281 {
1282 int i, j, x;
1283
1284 if (!camera) {
1285 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1286 return -ENODEV;
1287 }
1288
1289 if (spic_dev.camera_power)
1290 return 0;
1291
1292 for (j = 5; j > 0; j--) {
1293
1294 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1295 msleep(10);
1296 sony_pic_call1(0x93);
1297
1298 for (i = 400; i > 0; i--) {
1299 if (__sony_pic_camera_ready())
1300 break;
1301 msleep(10);
1302 }
1303 if (i)
1304 break;
1305 }
1306
1307 if (j == 0) {
1308 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1309 return -ENODEV;
1310 }
1311
1312 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1313 0x5a),
1314 ITERATIONS_SHORT);
1315
1316 spic_dev.camera_power = 1;
1317 return 0;
1318 }
1319
1320 /* External camera command (exported to the motion eye v4l driver) */
1321 int sony_pic_camera_command(int command, u8 value)
1322 {
1323 if (!camera)
1324 return -EIO;
1325
1326 mutex_lock(&spic_dev.lock);
1327
1328 switch (command) {
1329 case SONY_PIC_COMMAND_SETCAMERA:
1330 if (value)
1331 __sony_pic_camera_on();
1332 else
1333 __sony_pic_camera_off();
1334 break;
1335 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1336 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1337 ITERATIONS_SHORT);
1338 break;
1339 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1340 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1341 ITERATIONS_SHORT);
1342 break;
1343 case SONY_PIC_COMMAND_SETCAMERAHUE:
1344 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1345 ITERATIONS_SHORT);
1346 break;
1347 case SONY_PIC_COMMAND_SETCAMERACOLOR:
1348 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1349 ITERATIONS_SHORT);
1350 break;
1351 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1352 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1353 ITERATIONS_SHORT);
1354 break;
1355 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1356 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1357 ITERATIONS_SHORT);
1358 break;
1359 case SONY_PIC_COMMAND_SETCAMERAAGC:
1360 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1361 ITERATIONS_SHORT);
1362 break;
1363 default:
1364 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1365 command);
1366 break;
1367 }
1368 mutex_unlock(&spic_dev.lock);
1369 return 0;
1370 }
1371 EXPORT_SYMBOL(sony_pic_camera_command);
1372
1373 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1374 static void sony_pic_set_wwanpower(u8 state)
1375 {
1376 state = !!state;
1377 mutex_lock(&spic_dev.lock);
1378 if (spic_dev.wwan_power == state) {
1379 mutex_unlock(&spic_dev.lock);
1380 return;
1381 }
1382 sony_pic_call2(0xB0, state);
1383 spic_dev.wwan_power = state;
1384 mutex_unlock(&spic_dev.lock);
1385 }
1386
1387 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1388 struct device_attribute *attr,
1389 const char *buffer, size_t count)
1390 {
1391 unsigned long value;
1392 if (count > 31)
1393 return -EINVAL;
1394
1395 value = simple_strtoul(buffer, NULL, 10);
1396 sony_pic_set_wwanpower(value);
1397
1398 return count;
1399 }
1400
1401 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1402 struct device_attribute *attr, char *buffer)
1403 {
1404 ssize_t count;
1405 mutex_lock(&spic_dev.lock);
1406 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1407 mutex_unlock(&spic_dev.lock);
1408 return count;
1409 }
1410
1411 /* bluetooth subsystem power state */
1412 static void __sony_pic_set_bluetoothpower(u8 state)
1413 {
1414 state = !!state;
1415 if (spic_dev.bluetooth_power == state)
1416 return;
1417 sony_pic_call2(0x96, state);
1418 sony_pic_call1(0x82);
1419 spic_dev.bluetooth_power = state;
1420 }
1421
1422 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1423 struct device_attribute *attr,
1424 const char *buffer, size_t count)
1425 {
1426 unsigned long value;
1427 if (count > 31)
1428 return -EINVAL;
1429
1430 value = simple_strtoul(buffer, NULL, 10);
1431 mutex_lock(&spic_dev.lock);
1432 __sony_pic_set_bluetoothpower(value);
1433 mutex_unlock(&spic_dev.lock);
1434
1435 return count;
1436 }
1437
1438 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1439 struct device_attribute *attr, char *buffer)
1440 {
1441 ssize_t count = 0;
1442 mutex_lock(&spic_dev.lock);
1443 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1444 mutex_unlock(&spic_dev.lock);
1445 return count;
1446 }
1447
1448 /* fan speed */
1449 /* FAN0 information (reverse engineered from ACPI tables) */
1450 #define SONY_PIC_FAN0_STATUS 0x93
1451 static int sony_pic_set_fanspeed(unsigned long value)
1452 {
1453 return ec_write(SONY_PIC_FAN0_STATUS, value);
1454 }
1455
1456 static int sony_pic_get_fanspeed(u8 *value)
1457 {
1458 return ec_read(SONY_PIC_FAN0_STATUS, value);
1459 }
1460
1461 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1462 struct device_attribute *attr,
1463 const char *buffer, size_t count)
1464 {
1465 unsigned long value;
1466 if (count > 31)
1467 return -EINVAL;
1468
1469 value = simple_strtoul(buffer, NULL, 10);
1470 if (sony_pic_set_fanspeed(value))
1471 return -EIO;
1472
1473 return count;
1474 }
1475
1476 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1477 struct device_attribute *attr, char *buffer)
1478 {
1479 u8 value = 0;
1480 if (sony_pic_get_fanspeed(&value))
1481 return -EIO;
1482
1483 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1484 }
1485
1486 #define SPIC_ATTR(_name, _mode) \
1487 struct device_attribute spic_attr_##_name = __ATTR(_name, \
1488 _mode, sony_pic_## _name ##_show, \
1489 sony_pic_## _name ##_store)
1490
1491 static SPIC_ATTR(bluetoothpower, 0644);
1492 static SPIC_ATTR(wwanpower, 0644);
1493 static SPIC_ATTR(fanspeed, 0644);
1494
1495 static struct attribute *spic_attributes[] = {
1496 &spic_attr_bluetoothpower.attr,
1497 &spic_attr_wwanpower.attr,
1498 &spic_attr_fanspeed.attr,
1499 NULL
1500 };
1501
1502 static struct attribute_group spic_attribute_group = {
1503 .attrs = spic_attributes
1504 };
1505
1506 /******** SONYPI compatibility **********/
1507 #ifdef CONFIG_SONY_LAPTOP_OLD
1508
1509 /* battery / brightness / temperature addresses */
1510 #define SONYPI_BAT_FLAGS 0x81
1511 #define SONYPI_LCD_LIGHT 0x96
1512 #define SONYPI_BAT1_PCTRM 0xa0
1513 #define SONYPI_BAT1_LEFT 0xa2
1514 #define SONYPI_BAT1_MAXRT 0xa4
1515 #define SONYPI_BAT2_PCTRM 0xa8
1516 #define SONYPI_BAT2_LEFT 0xaa
1517 #define SONYPI_BAT2_MAXRT 0xac
1518 #define SONYPI_BAT1_MAXTK 0xb0
1519 #define SONYPI_BAT1_FULL 0xb2
1520 #define SONYPI_BAT2_MAXTK 0xb8
1521 #define SONYPI_BAT2_FULL 0xba
1522 #define SONYPI_TEMP_STATUS 0xC1
1523
1524 struct sonypi_compat_s {
1525 struct fasync_struct *fifo_async;
1526 struct kfifo *fifo;
1527 spinlock_t fifo_lock;
1528 wait_queue_head_t fifo_proc_list;
1529 atomic_t open_count;
1530 };
1531 static struct sonypi_compat_s sonypi_compat = {
1532 .open_count = ATOMIC_INIT(0),
1533 };
1534
1535 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1536 {
1537 int retval;
1538
1539 retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1540 if (retval < 0)
1541 return retval;
1542 return 0;
1543 }
1544
1545 static int sonypi_misc_release(struct inode *inode, struct file *file)
1546 {
1547 sonypi_misc_fasync(-1, file, 0);
1548 atomic_dec(&sonypi_compat.open_count);
1549 return 0;
1550 }
1551
1552 static int sonypi_misc_open(struct inode *inode, struct file *file)
1553 {
1554 /* Flush input queue on first open */
1555 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1556 kfifo_reset(sonypi_compat.fifo);
1557 return 0;
1558 }
1559
1560 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1561 size_t count, loff_t *pos)
1562 {
1563 ssize_t ret;
1564 unsigned char c;
1565
1566 if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1567 (file->f_flags & O_NONBLOCK))
1568 return -EAGAIN;
1569
1570 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1571 kfifo_len(sonypi_compat.fifo) != 0);
1572 if (ret)
1573 return ret;
1574
1575 while (ret < count &&
1576 (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1577 if (put_user(c, buf++))
1578 return -EFAULT;
1579 ret++;
1580 }
1581
1582 if (ret > 0) {
1583 struct inode *inode = file->f_path.dentry->d_inode;
1584 inode->i_atime = current_fs_time(inode->i_sb);
1585 }
1586
1587 return ret;
1588 }
1589
1590 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1591 {
1592 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1593 if (kfifo_len(sonypi_compat.fifo))
1594 return POLLIN | POLLRDNORM;
1595 return 0;
1596 }
1597
1598 static int ec_read16(u8 addr, u16 *value)
1599 {
1600 u8 val_lb, val_hb;
1601 if (ec_read(addr, &val_lb))
1602 return -1;
1603 if (ec_read(addr + 1, &val_hb))
1604 return -1;
1605 *value = val_lb | (val_hb << 8);
1606 return 0;
1607 }
1608
1609 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1610 unsigned int cmd, unsigned long arg)
1611 {
1612 int ret = 0;
1613 void __user *argp = (void __user *)arg;
1614 u8 val8;
1615 u16 val16;
1616 int value;
1617
1618 mutex_lock(&spic_dev.lock);
1619 switch (cmd) {
1620 case SONYPI_IOCGBRT:
1621 if (sony_backlight_device == NULL) {
1622 ret = -EIO;
1623 break;
1624 }
1625 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
1626 ret = -EIO;
1627 break;
1628 }
1629 val8 = ((value & 0xff) - 1) << 5;
1630 if (copy_to_user(argp, &val8, sizeof(val8)))
1631 ret = -EFAULT;
1632 break;
1633 case SONYPI_IOCSBRT:
1634 if (sony_backlight_device == NULL) {
1635 ret = -EIO;
1636 break;
1637 }
1638 if (copy_from_user(&val8, argp, sizeof(val8))) {
1639 ret = -EFAULT;
1640 break;
1641 }
1642 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
1643 (val8 >> 5) + 1, NULL)) {
1644 ret = -EIO;
1645 break;
1646 }
1647 /* sync the backlight device status */
1648 sony_backlight_device->props.brightness =
1649 sony_backlight_get_brightness(sony_backlight_device);
1650 break;
1651 case SONYPI_IOCGBAT1CAP:
1652 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
1653 ret = -EIO;
1654 break;
1655 }
1656 if (copy_to_user(argp, &val16, sizeof(val16)))
1657 ret = -EFAULT;
1658 break;
1659 case SONYPI_IOCGBAT1REM:
1660 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
1661 ret = -EIO;
1662 break;
1663 }
1664 if (copy_to_user(argp, &val16, sizeof(val16)))
1665 ret = -EFAULT;
1666 break;
1667 case SONYPI_IOCGBAT2CAP:
1668 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
1669 ret = -EIO;
1670 break;
1671 }
1672 if (copy_to_user(argp, &val16, sizeof(val16)))
1673 ret = -EFAULT;
1674 break;
1675 case SONYPI_IOCGBAT2REM:
1676 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
1677 ret = -EIO;
1678 break;
1679 }
1680 if (copy_to_user(argp, &val16, sizeof(val16)))
1681 ret = -EFAULT;
1682 break;
1683 case SONYPI_IOCGBATFLAGS:
1684 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
1685 ret = -EIO;
1686 break;
1687 }
1688 val8 &= 0x07;
1689 if (copy_to_user(argp, &val8, sizeof(val8)))
1690 ret = -EFAULT;
1691 break;
1692 case SONYPI_IOCGBLUE:
1693 val8 = spic_dev.bluetooth_power;
1694 if (copy_to_user(argp, &val8, sizeof(val8)))
1695 ret = -EFAULT;
1696 break;
1697 case SONYPI_IOCSBLUE:
1698 if (copy_from_user(&val8, argp, sizeof(val8))) {
1699 ret = -EFAULT;
1700 break;
1701 }
1702 __sony_pic_set_bluetoothpower(val8);
1703 break;
1704 /* FAN Controls */
1705 case SONYPI_IOCGFAN:
1706 if (sony_pic_get_fanspeed(&val8)) {
1707 ret = -EIO;
1708 break;
1709 }
1710 if (copy_to_user(argp, &val8, sizeof(val8)))
1711 ret = -EFAULT;
1712 break;
1713 case SONYPI_IOCSFAN:
1714 if (copy_from_user(&val8, argp, sizeof(val8))) {
1715 ret = -EFAULT;
1716 break;
1717 }
1718 if (sony_pic_set_fanspeed(val8))
1719 ret = -EIO;
1720 break;
1721 /* GET Temperature (useful under APM) */
1722 case SONYPI_IOCGTEMP:
1723 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
1724 ret = -EIO;
1725 break;
1726 }
1727 if (copy_to_user(argp, &val8, sizeof(val8)))
1728 ret = -EFAULT;
1729 break;
1730 default:
1731 ret = -EINVAL;
1732 }
1733 mutex_unlock(&spic_dev.lock);
1734 return ret;
1735 }
1736
1737 static const struct file_operations sonypi_misc_fops = {
1738 .owner = THIS_MODULE,
1739 .read = sonypi_misc_read,
1740 .poll = sonypi_misc_poll,
1741 .open = sonypi_misc_open,
1742 .release = sonypi_misc_release,
1743 .fasync = sonypi_misc_fasync,
1744 .ioctl = sonypi_misc_ioctl,
1745 };
1746
1747 static struct miscdevice sonypi_misc_device = {
1748 .minor = MISC_DYNAMIC_MINOR,
1749 .name = "sonypi",
1750 .fops = &sonypi_misc_fops,
1751 };
1752
1753 static void sonypi_compat_report_event(u8 event)
1754 {
1755 kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
1756 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
1757 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
1758 }
1759
1760 static int sonypi_compat_init(void)
1761 {
1762 int error;
1763
1764 spin_lock_init(&sonypi_compat.fifo_lock);
1765 sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
1766 &sonypi_compat.fifo_lock);
1767 if (IS_ERR(sonypi_compat.fifo)) {
1768 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
1769 return PTR_ERR(sonypi_compat.fifo);
1770 }
1771
1772 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
1773
1774 if (minor != -1)
1775 sonypi_misc_device.minor = minor;
1776 error = misc_register(&sonypi_misc_device);
1777 if (error) {
1778 printk(KERN_ERR DRV_PFX "misc_register failed\n");
1779 goto err_free_kfifo;
1780 }
1781 if (minor == -1)
1782 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
1783 sonypi_misc_device.minor);
1784
1785 return 0;
1786
1787 err_free_kfifo:
1788 kfifo_free(sonypi_compat.fifo);
1789 return error;
1790 }
1791
1792 static void sonypi_compat_exit(void)
1793 {
1794 misc_deregister(&sonypi_misc_device);
1795 kfifo_free(sonypi_compat.fifo);
1796 }
1797 #else
1798 static int sonypi_compat_init(void) { return 0; }
1799 static void sonypi_compat_exit(void) { }
1800 static void sonypi_compat_report_event(u8 event) { }
1801 #endif /* CONFIG_SONY_LAPTOP_OLD */
1802
1803 /*
1804 * ACPI callbacks
1805 */
1806 static acpi_status
1807 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
1808 {
1809 u32 i;
1810 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
1811
1812 switch (resource->type) {
1813 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
1814 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
1815 return AE_OK;
1816
1817 case ACPI_RESOURCE_TYPE_IRQ:
1818 {
1819 struct acpi_resource_irq *p = &resource->data.irq;
1820 struct sony_pic_irq *interrupt = NULL;
1821 if (!p || !p->interrupt_count) {
1822 /*
1823 * IRQ descriptors may have no IRQ# bits set,
1824 * particularly those those w/ _STA disabled
1825 */
1826 dprintk("Blank IRQ resource\n");
1827 return AE_OK;
1828 }
1829 for (i = 0; i < p->interrupt_count; i++) {
1830 if (!p->interrupts[i]) {
1831 printk(KERN_WARNING DRV_PFX
1832 "Invalid IRQ %d\n",
1833 p->interrupts[i]);
1834 continue;
1835 }
1836 interrupt = kzalloc(sizeof(*interrupt),
1837 GFP_KERNEL);
1838 if (!interrupt)
1839 return AE_ERROR;
1840
1841 list_add_tail(&interrupt->list, &dev->interrupts);
1842 interrupt->irq.triggering = p->triggering;
1843 interrupt->irq.polarity = p->polarity;
1844 interrupt->irq.sharable = p->sharable;
1845 interrupt->irq.interrupt_count = 1;
1846 interrupt->irq.interrupts[0] = p->interrupts[i];
1847 }
1848 return AE_OK;
1849 }
1850 case ACPI_RESOURCE_TYPE_IO:
1851 {
1852 struct acpi_resource_io *io = &resource->data.io;
1853 struct sony_pic_ioport *ioport = NULL;
1854 if (!io) {
1855 dprintk("Blank IO resource\n");
1856 return AE_OK;
1857 }
1858
1859 ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
1860 if (!ioport)
1861 return AE_ERROR;
1862
1863 list_add_tail(&ioport->list, &dev->ioports);
1864 memcpy(&ioport->io, io, sizeof(*io));
1865 return AE_OK;
1866 }
1867 default:
1868 dprintk("Resource %d isn't an IRQ nor an IO port\n",
1869 resource->type);
1870
1871 case ACPI_RESOURCE_TYPE_END_TAG:
1872 return AE_OK;
1873 }
1874 return AE_CTRL_TERMINATE;
1875 }
1876
1877 static int sony_pic_possible_resources(struct acpi_device *device)
1878 {
1879 int result = 0;
1880 acpi_status status = AE_OK;
1881
1882 if (!device)
1883 return -EINVAL;
1884
1885 /* get device status */
1886 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
1887 dprintk("Evaluating _STA\n");
1888 result = acpi_bus_get_status(device);
1889 if (result) {
1890 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
1891 goto end;
1892 }
1893
1894 if (!device->status.enabled)
1895 dprintk("Device disabled\n");
1896 else
1897 dprintk("Device enabled\n");
1898
1899 /*
1900 * Query and parse 'method'
1901 */
1902 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
1903 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
1904 sony_pic_read_possible_resource, &spic_dev);
1905 if (ACPI_FAILURE(status)) {
1906 printk(KERN_WARNING DRV_PFX
1907 "Failure evaluating %s\n",
1908 METHOD_NAME__PRS);
1909 result = -ENODEV;
1910 }
1911 end:
1912 return result;
1913 }
1914
1915 /*
1916 * Disable the spic device by calling its _DIS method
1917 */
1918 static int sony_pic_disable(struct acpi_device *device)
1919 {
1920 if (ACPI_FAILURE(acpi_evaluate_object(device->handle, "_DIS", 0, NULL)))
1921 return -ENXIO;
1922
1923 dprintk("Device disabled\n");
1924 return 0;
1925 }
1926
1927
1928 /*
1929 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
1930 *
1931 * Call _SRS to set current resources
1932 */
1933 static int sony_pic_enable(struct acpi_device *device,
1934 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
1935 {
1936 acpi_status status;
1937 int result = 0;
1938 struct {
1939 struct acpi_resource io_res;
1940 struct acpi_resource irq_res;
1941 struct acpi_resource end;
1942 } *resource;
1943 struct acpi_buffer buffer = { 0, NULL };
1944
1945 if (!ioport || !irq)
1946 return -EINVAL;
1947
1948 /* init acpi_buffer */
1949 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
1950 if (!resource)
1951 return -ENOMEM;
1952
1953 buffer.length = sizeof(*resource) + 1;
1954 buffer.pointer = resource;
1955
1956 /* setup io resource */
1957 resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
1958 resource->io_res.length = sizeof(struct acpi_resource);
1959 memcpy(&resource->io_res.data.io, &ioport->io,
1960 sizeof(struct acpi_resource_io));
1961
1962 /* setup irq resource */
1963 resource->irq_res.type = ACPI_RESOURCE_TYPE_IRQ;
1964 resource->irq_res.length = sizeof(struct acpi_resource);
1965 memcpy(&resource->irq_res.data.irq, &irq->irq,
1966 sizeof(struct acpi_resource_irq));
1967 /* we requested a shared irq */
1968 resource->irq_res.data.irq.sharable = ACPI_SHARED;
1969
1970 resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
1971
1972 /* Attempt to set the resource */
1973 dprintk("Evaluating _SRS\n");
1974 status = acpi_set_current_resources(device->handle, &buffer);
1975
1976 /* check for total failure */
1977 if (ACPI_FAILURE(status)) {
1978 printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
1979 result = -ENODEV;
1980 goto end;
1981 }
1982
1983 /* Necessary device initializations calls (from sonypi) */
1984 sony_pic_call1(0x82);
1985 sony_pic_call2(0x81, 0xff);
1986 sony_pic_call1(compat ? 0x92 : 0x82);
1987
1988 end:
1989 kfree(resource);
1990 return result;
1991 }
1992
1993 /*****************
1994 *
1995 * ISR: some event is available
1996 *
1997 *****************/
1998 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
1999 {
2000 int i, j;
2001 u32 port_val = 0;
2002 u8 ev = 0;
2003 u8 data_mask = 0;
2004 u8 device_event = 0;
2005
2006 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2007
2008 acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
2009 dev->cur_ioport->io.address_length);
2010 ev = port_val & SONY_PIC_EV_MASK;
2011 data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));
2012
2013 dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
2014 port_val, ev, data_mask, dev->cur_ioport->io.minimum);
2015
2016 if (ev == 0x00 || ev == 0xff)
2017 return IRQ_HANDLED;
2018
2019 for (i = 0; sony_pic_eventtypes[i].model; i++) {
2020
2021 if (spic_dev.model != sony_pic_eventtypes[i].model)
2022 continue;
2023
2024 if ((data_mask & sony_pic_eventtypes[i].data) !=
2025 sony_pic_eventtypes[i].data)
2026 continue;
2027
2028 if (!(mask & sony_pic_eventtypes[i].mask))
2029 continue;
2030
2031 for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
2032 if (ev == sony_pic_eventtypes[i].events[j].data) {
2033 device_event =
2034 sony_pic_eventtypes[i].events[j].event;
2035 goto found;
2036 }
2037 }
2038 }
2039 return IRQ_HANDLED;
2040
2041 found:
2042 sony_laptop_report_input_event(device_event);
2043 acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2044 sonypi_compat_report_event(device_event);
2045
2046 return IRQ_HANDLED;
2047 }
2048
2049 /*****************
2050 *
2051 * ACPI driver
2052 *
2053 *****************/
2054 static int sony_pic_remove(struct acpi_device *device, int type)
2055 {
2056 struct sony_pic_ioport *io, *tmp_io;
2057 struct sony_pic_irq *irq, *tmp_irq;
2058
2059 sonypi_compat_exit();
2060
2061 if (sony_pic_disable(device)) {
2062 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2063 return -ENXIO;
2064 }
2065
2066 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2067 release_region(spic_dev.cur_ioport->io.minimum,
2068 spic_dev.cur_ioport->io.address_length);
2069
2070 sony_laptop_remove_input();
2071
2072 /* pf attrs */
2073 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2074 sony_pf_remove();
2075
2076 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2077 list_del(&io->list);
2078 kfree(io);
2079 }
2080 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2081 list_del(&irq->list);
2082 kfree(irq);
2083 }
2084 spic_dev.cur_ioport = NULL;
2085 spic_dev.cur_irq = NULL;
2086
2087 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2088 return 0;
2089 }
2090
2091 static int sony_pic_add(struct acpi_device *device)
2092 {
2093 int result;
2094 struct sony_pic_ioport *io, *tmp_io;
2095 struct sony_pic_irq *irq, *tmp_irq;
2096
2097 printk(KERN_INFO DRV_PFX "%s v%s.\n",
2098 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2099
2100 spic_dev.acpi_dev = device;
2101 strcpy(acpi_device_class(device), "sony/hotkey");
2102 spic_dev.model = sony_pic_detect_device_type();
2103 mutex_init(&spic_dev.lock);
2104
2105 /* read _PRS resources */
2106 result = sony_pic_possible_resources(device);
2107 if (result) {
2108 printk(KERN_ERR DRV_PFX
2109 "Unabe to read possible resources.\n");
2110 goto err_free_resources;
2111 }
2112
2113 /* setup input devices and helper fifo */
2114 result = sony_laptop_setup_input();
2115 if (result) {
2116 printk(KERN_ERR DRV_PFX
2117 "Unabe to create input devices.\n");
2118 goto err_free_resources;
2119 }
2120
2121 /* request io port */
2122 list_for_each_entry(io, &spic_dev.ioports, list) {
2123 if (request_region(io->io.minimum, io->io.address_length,
2124 "Sony Programable I/O Device")) {
2125 dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
2126 io->io.minimum, io->io.maximum,
2127 io->io.address_length);
2128 spic_dev.cur_ioport = io;
2129 break;
2130 }
2131 }
2132 if (!spic_dev.cur_ioport) {
2133 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2134 result = -ENODEV;
2135 goto err_remove_input;
2136 }
2137
2138 /* request IRQ */
2139 list_for_each_entry(irq, &spic_dev.interrupts, list) {
2140 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2141 IRQF_SHARED, "sony-laptop", &spic_dev)) {
2142 dprintk("IRQ: %d - triggering: %d - "
2143 "polarity: %d - shr: %d\n",
2144 irq->irq.interrupts[0],
2145 irq->irq.triggering,
2146 irq->irq.polarity,
2147 irq->irq.sharable);
2148 spic_dev.cur_irq = irq;
2149 break;
2150 }
2151 }
2152 if (!spic_dev.cur_irq) {
2153 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2154 result = -ENODEV;
2155 goto err_release_region;
2156 }
2157
2158 /* set resource status _SRS */
2159 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2160 if (result) {
2161 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2162 goto err_free_irq;
2163 }
2164
2165 spic_dev.bluetooth_power = -1;
2166 /* create device attributes */
2167 result = sony_pf_add();
2168 if (result)
2169 goto err_disable_device;
2170
2171 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2172 if (result)
2173 goto err_remove_pf;
2174
2175 if (sonypi_compat_init())
2176 goto err_remove_pf;
2177
2178 return 0;
2179
2180 err_remove_pf:
2181 sony_pf_remove();
2182
2183 err_disable_device:
2184 sony_pic_disable(device);
2185
2186 err_free_irq:
2187 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2188
2189 err_release_region:
2190 release_region(spic_dev.cur_ioport->io.minimum,
2191 spic_dev.cur_ioport->io.address_length);
2192
2193 err_remove_input:
2194 sony_laptop_remove_input();
2195
2196 err_free_resources:
2197 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2198 list_del(&io->list);
2199 kfree(io);
2200 }
2201 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2202 list_del(&irq->list);
2203 kfree(irq);
2204 }
2205 spic_dev.cur_ioport = NULL;
2206 spic_dev.cur_irq = NULL;
2207
2208 return result;
2209 }
2210
2211 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2212 {
2213 if (sony_pic_disable(device))
2214 return -ENXIO;
2215 return 0;
2216 }
2217
2218 static int sony_pic_resume(struct acpi_device *device)
2219 {
2220 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2221 return 0;
2222 }
2223
2224 static struct acpi_driver sony_pic_driver = {
2225 .name = SONY_PIC_DRIVER_NAME,
2226 .class = SONY_PIC_CLASS,
2227 .ids = SONY_PIC_HID,
2228 .owner = THIS_MODULE,
2229 .ops = {
2230 .add = sony_pic_add,
2231 .remove = sony_pic_remove,
2232 .suspend = sony_pic_suspend,
2233 .resume = sony_pic_resume,
2234 },
2235 };
2236
2237 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2238 {
2239 .ident = "Sony Vaio",
2240 .matches = {
2241 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2242 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2243 },
2244 },
2245 {
2246 .ident = "Sony Vaio",
2247 .matches = {
2248 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2249 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2250 },
2251 },
2252 { }
2253 };
2254
2255 static int __init sony_laptop_init(void)
2256 {
2257 int result;
2258
2259 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2260 result = acpi_bus_register_driver(&sony_pic_driver);
2261 if (result) {
2262 printk(KERN_ERR DRV_PFX
2263 "Unable to register SPIC driver.");
2264 goto out;
2265 }
2266 }
2267
2268 result = acpi_bus_register_driver(&sony_nc_driver);
2269 if (result) {
2270 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2271 goto out_unregister_pic;
2272 }
2273
2274 return 0;
2275
2276 out_unregister_pic:
2277 if (!no_spic)
2278 acpi_bus_unregister_driver(&sony_pic_driver);
2279 out:
2280 return result;
2281 }
2282
2283 static void __exit sony_laptop_exit(void)
2284 {
2285 acpi_bus_unregister_driver(&sony_nc_driver);
2286 if (!no_spic)
2287 acpi_bus_unregister_driver(&sony_pic_driver);
2288 }
2289
2290 module_init(sony_laptop_init);
2291 module_exit(sony_laptop_exit);
Support for the Chinese Samsung S3C2440 based development boards