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sony-laptop.c: fix off-by-one
[wandboard.git] / drivers / misc / sony-laptop.c
blob02ff3d19b1ccaf40981c861e9977c43eea634f3f
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_SONYPI_COMPAT
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 "0.6"
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_SONYPI_COMPAT
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
146 * and input layer indexes in the keymap
147 */
148 static int sony_laptop_input_index[] = {
149 -1, /* 0 no event */
150 -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */
151 -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */
152 -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
153 -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
154 -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */
155 -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */
156 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */
157 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */
158 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
159 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
160 4, /* 11 SONYPI_EVENT_FNKEY_ESC */
161 5, /* 12 SONYPI_EVENT_FNKEY_F1 */
162 6, /* 13 SONYPI_EVENT_FNKEY_F2 */
163 7, /* 14 SONYPI_EVENT_FNKEY_F3 */
164 8, /* 15 SONYPI_EVENT_FNKEY_F4 */
165 9, /* 16 SONYPI_EVENT_FNKEY_F5 */
166 10, /* 17 SONYPI_EVENT_FNKEY_F6 */
167 11, /* 18 SONYPI_EVENT_FNKEY_F7 */
168 12, /* 19 SONYPI_EVENT_FNKEY_F8 */
169 13, /* 20 SONYPI_EVENT_FNKEY_F9 */
170 14, /* 21 SONYPI_EVENT_FNKEY_F10 */
171 15, /* 22 SONYPI_EVENT_FNKEY_F11 */
172 16, /* 23 SONYPI_EVENT_FNKEY_F12 */
173 17, /* 24 SONYPI_EVENT_FNKEY_1 */
174 18, /* 25 SONYPI_EVENT_FNKEY_2 */
175 19, /* 26 SONYPI_EVENT_FNKEY_D */
176 20, /* 27 SONYPI_EVENT_FNKEY_E */
177 21, /* 28 SONYPI_EVENT_FNKEY_F */
178 22, /* 29 SONYPI_EVENT_FNKEY_S */
179 23, /* 30 SONYPI_EVENT_FNKEY_B */
180 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
181 25, /* 32 SONYPI_EVENT_PKEY_P1 */
182 26, /* 33 SONYPI_EVENT_PKEY_P2 */
183 27, /* 34 SONYPI_EVENT_PKEY_P3 */
184 28, /* 35 SONYPI_EVENT_BACK_PRESSED */
185 -1, /* 36 SONYPI_EVENT_LID_CLOSED */
186 -1, /* 37 SONYPI_EVENT_LID_OPENED */
187 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */
188 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
189 31, /* 40 SONYPI_EVENT_HELP_PRESSED */
190 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */
191 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
192 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
193 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
194 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
195 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
196 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
197 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
198 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
199 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */
200 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
201 43, /* 52 SONYPI_EVENT_MEYE_FACE */
202 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
203 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
204 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
205 -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
206 -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */
207 -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */
208 -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */
209 47, /* 60 SONYPI_EVENT_WIRELESS_ON */
210 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */
211 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
212 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
213 };
214
215 static int sony_laptop_input_keycode_map[] = {
216 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
217 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
218 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
219 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
220 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
221 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
222 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
223 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
224 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
225 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
226 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
227 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
228 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
229 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
230 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
231 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
232 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
233 KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */
234 KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */
235 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
236 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
237 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
238 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
239 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
240 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
241 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
242 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
243 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
244 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
245 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
246 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
247 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
248 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
249 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
250 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
251 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
252 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
253 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
254 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
255 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
256 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
257 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
258 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
259 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
260 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
261 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
262 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
263 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
264 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
265 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
266 KEY_ZOOMOUT /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
267 };
268
269 /* release buttons after a short delay if pressed */
270 static void do_sony_laptop_release_key(struct work_struct *work)
271 {
272 struct sony_laptop_keypress kp;
273
274 while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
275 sizeof(kp)) == sizeof(kp)) {
276 msleep(10);
277 input_report_key(kp.dev, kp.key, 0);
278 input_sync(kp.dev);
279 }
280 }
281 static DECLARE_WORK(sony_laptop_release_key_work,
282 do_sony_laptop_release_key);
283
284 /* forward event to the input subsystem */
285 static void sony_laptop_report_input_event(u8 event)
286 {
287 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
288 struct input_dev *key_dev = sony_laptop_input.key_dev;
289 struct sony_laptop_keypress kp = { NULL };
290
291 if (event == SONYPI_EVENT_FNKEY_RELEASED) {
292 /* Nothing, not all VAIOs generate this event */
293 return;
294 }
295
296 /* report events */
297 switch (event) {
298 /* jog_dev events */
299 case SONYPI_EVENT_JOGDIAL_UP:
300 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
301 input_report_rel(jog_dev, REL_WHEEL, 1);
302 input_sync(jog_dev);
303 return;
304
305 case SONYPI_EVENT_JOGDIAL_DOWN:
306 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
307 input_report_rel(jog_dev, REL_WHEEL, -1);
308 input_sync(jog_dev);
309 return;
310
311 /* key_dev events */
312 case SONYPI_EVENT_JOGDIAL_PRESSED:
313 kp.key = BTN_MIDDLE;
314 kp.dev = jog_dev;
315 break;
316
317 default:
318 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
319 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
320 break;
321 }
322 if (sony_laptop_input_index[event] != -1) {
323 kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
324 if (kp.key != KEY_UNKNOWN)
325 kp.dev = key_dev;
326 }
327 break;
328 }
329
330 if (kp.dev) {
331 input_report_key(kp.dev, kp.key, 1);
332 /* we emit the scancode so we can always remap the key */
333 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
334 input_sync(kp.dev);
335 kfifo_put(sony_laptop_input.fifo,
336 (unsigned char *)&kp, sizeof(kp));
337
338 if (!work_pending(&sony_laptop_release_key_work))
339 queue_work(sony_laptop_input.wq,
340 &sony_laptop_release_key_work);
341 } else
342 dprintk("unknown input event %.2x\n", event);
343 }
344
345 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
346 {
347 struct input_dev *jog_dev;
348 struct input_dev *key_dev;
349 int i;
350 int error;
351
352 /* don't run again if already initialized */
353 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
354 return 0;
355
356 /* kfifo */
357 spin_lock_init(&sony_laptop_input.fifo_lock);
358 sony_laptop_input.fifo =
359 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
360 &sony_laptop_input.fifo_lock);
361 if (IS_ERR(sony_laptop_input.fifo)) {
362 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
363 error = PTR_ERR(sony_laptop_input.fifo);
364 goto err_dec_users;
365 }
366
367 /* init workqueue */
368 sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
369 if (!sony_laptop_input.wq) {
370 printk(KERN_ERR DRV_PFX
371 "Unabe to create workqueue.\n");
372 error = -ENXIO;
373 goto err_free_kfifo;
374 }
375
376 /* input keys */
377 key_dev = input_allocate_device();
378 if (!key_dev) {
379 error = -ENOMEM;
380 goto err_destroy_wq;
381 }
382
383 key_dev->name = "Sony Vaio Keys";
384 key_dev->id.bustype = BUS_ISA;
385 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
386 key_dev->dev.parent = &acpi_device->dev;
387
388 /* Initialize the Input Drivers: special keys */
389 set_bit(EV_KEY, key_dev->evbit);
390 set_bit(EV_MSC, key_dev->evbit);
391 set_bit(MSC_SCAN, key_dev->mscbit);
392 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
393 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
394 key_dev->keycode = &sony_laptop_input_keycode_map;
395 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
396 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
397 set_bit(sony_laptop_input_keycode_map[i],
398 key_dev->keybit);
399 }
400 }
401
402 error = input_register_device(key_dev);
403 if (error)
404 goto err_free_keydev;
405
406 sony_laptop_input.key_dev = key_dev;
407
408 /* jogdial */
409 jog_dev = input_allocate_device();
410 if (!jog_dev) {
411 error = -ENOMEM;
412 goto err_unregister_keydev;
413 }
414
415 jog_dev->name = "Sony Vaio Jogdial";
416 jog_dev->id.bustype = BUS_ISA;
417 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
418 key_dev->dev.parent = &acpi_device->dev;
419
420 jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
421 jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
422 jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
423
424 error = input_register_device(jog_dev);
425 if (error)
426 goto err_free_jogdev;
427
428 sony_laptop_input.jog_dev = jog_dev;
429
430 return 0;
431
432 err_free_jogdev:
433 input_free_device(jog_dev);
434
435 err_unregister_keydev:
436 input_unregister_device(key_dev);
437 /* to avoid kref underflow below at input_free_device */
438 key_dev = NULL;
439
440 err_free_keydev:
441 input_free_device(key_dev);
442
443 err_destroy_wq:
444 destroy_workqueue(sony_laptop_input.wq);
445
446 err_free_kfifo:
447 kfifo_free(sony_laptop_input.fifo);
448
449 err_dec_users:
450 atomic_dec(&sony_laptop_input.users);
451 return error;
452 }
453
454 static void sony_laptop_remove_input(void)
455 {
456 /* cleanup only after the last user has gone */
457 if (!atomic_dec_and_test(&sony_laptop_input.users))
458 return;
459
460 /* flush workqueue first */
461 flush_workqueue(sony_laptop_input.wq);
462
463 /* destroy input devs */
464 input_unregister_device(sony_laptop_input.key_dev);
465 sony_laptop_input.key_dev = NULL;
466
467 if (sony_laptop_input.jog_dev) {
468 input_unregister_device(sony_laptop_input.jog_dev);
469 sony_laptop_input.jog_dev = NULL;
470 }
471
472 destroy_workqueue(sony_laptop_input.wq);
473 kfifo_free(sony_laptop_input.fifo);
474 }
475
476 /*********** Platform Device ***********/
477
478 static atomic_t sony_pf_users = ATOMIC_INIT(0);
479 static struct platform_driver sony_pf_driver = {
480 .driver = {
481 .name = "sony-laptop",
482 .owner = THIS_MODULE,
483 }
484 };
485 static struct platform_device *sony_pf_device;
486
487 static int sony_pf_add(void)
488 {
489 int ret = 0;
490
491 /* don't run again if already initialized */
492 if (atomic_add_return(1, &sony_pf_users) > 1)
493 return 0;
494
495 ret = platform_driver_register(&sony_pf_driver);
496 if (ret)
497 goto out;
498
499 sony_pf_device = platform_device_alloc("sony-laptop", -1);
500 if (!sony_pf_device) {
501 ret = -ENOMEM;
502 goto out_platform_registered;
503 }
504
505 ret = platform_device_add(sony_pf_device);
506 if (ret)
507 goto out_platform_alloced;
508
509 return 0;
510
511 out_platform_alloced:
512 platform_device_put(sony_pf_device);
513 sony_pf_device = NULL;
514 out_platform_registered:
515 platform_driver_unregister(&sony_pf_driver);
516 out:
517 atomic_dec(&sony_pf_users);
518 return ret;
519 }
520
521 static void sony_pf_remove(void)
522 {
523 /* deregister only after the last user has gone */
524 if (!atomic_dec_and_test(&sony_pf_users))
525 return;
526
527 platform_device_del(sony_pf_device);
528 platform_device_put(sony_pf_device);
529 platform_driver_unregister(&sony_pf_driver);
530 }
531
532 /*********** SNC (SNY5001) Device ***********/
533
534 /* the device uses 1-based values, while the backlight subsystem uses
535 0-based values */
536 #define SONY_MAX_BRIGHTNESS 8
537
538 #define SNC_VALIDATE_IN 0
539 #define SNC_VALIDATE_OUT 1
540
541 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
542 char *);
543 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
544 const char *, size_t);
545 static int boolean_validate(const int, const int);
546 static int brightness_default_validate(const int, const int);
547
548 struct sony_nc_value {
549 char *name; /* name of the entry */
550 char **acpiget; /* names of the ACPI get function */
551 char **acpiset; /* names of the ACPI set function */
552 int (*validate)(const int, const int); /* input/output validation */
553 int value; /* current setting */
554 int valid; /* Has ever been set */
555 int debug; /* active only in debug mode ? */
556 struct device_attribute devattr; /* sysfs atribute */
557 };
558
559 #define SNC_HANDLE_NAMES(_name, _values...) \
560 static char *snc_##_name[] = { _values, NULL }
561
562 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
563 { \
564 .name = __stringify(_name), \
565 .acpiget = _getters, \
566 .acpiset = _setters, \
567 .validate = _validate, \
568 .debug = _debug, \
569 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
570 }
571
572 #define SNC_HANDLE_NULL { .name = NULL }
573
574 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
575
576 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
577 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
578
579 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
580 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
581
582 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
583 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
584
585 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
586 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
587
588 SNC_HANDLE_NAMES(lidstate_get, "GLID");
589
590 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
591 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
592
593 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
594 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
595
596 SNC_HANDLE_NAMES(PID_get, "GPID");
597
598 SNC_HANDLE_NAMES(CTR_get, "GCTR");
599 SNC_HANDLE_NAMES(CTR_set, "SCTR");
600
601 SNC_HANDLE_NAMES(PCR_get, "GPCR");
602 SNC_HANDLE_NAMES(PCR_set, "SPCR");
603
604 SNC_HANDLE_NAMES(CMI_get, "GCMI");
605 SNC_HANDLE_NAMES(CMI_set, "SCMI");
606
607 static struct sony_nc_value sony_nc_values[] = {
608 SNC_HANDLE(brightness_default, snc_brightness_def_get,
609 snc_brightness_def_set, brightness_default_validate, 0),
610 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
611 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
612 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
613 boolean_validate, 0),
614 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
615 boolean_validate, 1),
616 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
617 boolean_validate, 0),
618 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
619 boolean_validate, 0),
620 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
621 boolean_validate, 0),
622 /* unknown methods */
623 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
624 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
625 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
626 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
627 SNC_HANDLE_NULL
628 };
629
630 static acpi_handle sony_nc_acpi_handle;
631 static struct acpi_device *sony_nc_acpi_device = NULL;
632
633 /*
634 * acpi_evaluate_object wrappers
635 */
636 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
637 {
638 struct acpi_buffer output;
639 union acpi_object out_obj;
640 acpi_status status;
641
642 output.length = sizeof(out_obj);
643 output.pointer = &out_obj;
644
645 status = acpi_evaluate_object(handle, name, NULL, &output);
646 if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
647 *result = out_obj.integer.value;
648 return 0;
649 }
650
651 printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
652
653 return -1;
654 }
655
656 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
657 int *result)
658 {
659 struct acpi_object_list params;
660 union acpi_object in_obj;
661 struct acpi_buffer output;
662 union acpi_object out_obj;
663 acpi_status status;
664
665 params.count = 1;
666 params.pointer = &in_obj;
667 in_obj.type = ACPI_TYPE_INTEGER;
668 in_obj.integer.value = value;
669
670 output.length = sizeof(out_obj);
671 output.pointer = &out_obj;
672
673 status = acpi_evaluate_object(handle, name, &params, &output);
674 if (status == AE_OK) {
675 if (result != NULL) {
676 if (out_obj.type != ACPI_TYPE_INTEGER) {
677 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
678 "return type\n");
679 return -1;
680 }
681 *result = out_obj.integer.value;
682 }
683 return 0;
684 }
685
686 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
687
688 return -1;
689 }
690
691 /*
692 * sony_nc_values input/output validate functions
693 */
694
695 /* brightness_default_validate:
696 *
697 * manipulate input output values to keep consistency with the
698 * backlight framework for which brightness values are 0-based.
699 */
700 static int brightness_default_validate(const int direction, const int value)
701 {
702 switch (direction) {
703 case SNC_VALIDATE_OUT:
704 return value - 1;
705 case SNC_VALIDATE_IN:
706 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
707 return value + 1;
708 }
709 return -EINVAL;
710 }
711
712 /* boolean_validate:
713 *
714 * on input validate boolean values 0/1, on output just pass the
715 * received value.
716 */
717 static int boolean_validate(const int direction, const int value)
718 {
719 if (direction == SNC_VALIDATE_IN) {
720 if (value != 0 && value != 1)
721 return -EINVAL;
722 }
723 return value;
724 }
725
726 /*
727 * Sysfs show/store common to all sony_nc_values
728 */
729 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
730 char *buffer)
731 {
732 int value;
733 struct sony_nc_value *item =
734 container_of(attr, struct sony_nc_value, devattr);
735
736 if (!*item->acpiget)
737 return -EIO;
738
739 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
740 return -EIO;
741
742 if (item->validate)
743 value = item->validate(SNC_VALIDATE_OUT, value);
744
745 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
746 }
747
748 static ssize_t sony_nc_sysfs_store(struct device *dev,
749 struct device_attribute *attr,
750 const char *buffer, size_t count)
751 {
752 int value;
753 struct sony_nc_value *item =
754 container_of(attr, struct sony_nc_value, devattr);
755
756 if (!item->acpiset)
757 return -EIO;
758
759 if (count > 31)
760 return -EINVAL;
761
762 value = simple_strtoul(buffer, NULL, 10);
763
764 if (item->validate)
765 value = item->validate(SNC_VALIDATE_IN, value);
766
767 if (value < 0)
768 return value;
769
770 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
771 return -EIO;
772 item->value = value;
773 item->valid = 1;
774 return count;
775 }
776
777
778 /*
779 * Backlight device
780 */
781 static int sony_backlight_update_status(struct backlight_device *bd)
782 {
783 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
784 bd->props.brightness + 1, NULL);
785 }
786
787 static int sony_backlight_get_brightness(struct backlight_device *bd)
788 {
789 int value;
790
791 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
792 return 0;
793 /* brightness levels are 1-based, while backlight ones are 0-based */
794 return value - 1;
795 }
796
797 static struct backlight_device *sony_backlight_device;
798 static struct backlight_ops sony_backlight_ops = {
799 .update_status = sony_backlight_update_status,
800 .get_brightness = sony_backlight_get_brightness,
801 };
802
803 /*
804 * New SNC-only Vaios event mapping to driver known keys
805 */
806 struct sony_nc_event {
807 u8 data;
808 u8 event;
809 };
810
811 static struct sony_nc_event *sony_nc_events;
812
813 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
814 * for Fn keys
815 */
816 static int sony_nc_C_enable(const struct dmi_system_id *id)
817 {
818 int result = 0;
819
820 printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
821
822 sony_nc_events = id->driver_data;
823
824 if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
825 || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
826 || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
827 || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
828 || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
829 || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
830 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
831 "functionalities may be missing\n");
832 return 1;
833 }
834 return 0;
835 }
836
837 static struct sony_nc_event sony_C_events[] = {
838 { 0x81, SONYPI_EVENT_FNKEY_F1 },
839 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
840 { 0x85, SONYPI_EVENT_FNKEY_F5 },
841 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
842 { 0x86, SONYPI_EVENT_FNKEY_F6 },
843 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
844 { 0x87, SONYPI_EVENT_FNKEY_F7 },
845 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
846 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
847 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
848 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
849 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
850 { 0, 0 },
851 };
852
853 /* SNC-only model map */
854 static const struct dmi_system_id sony_nc_ids[] = {
855 {
856 .ident = "Sony Vaio FE Series",
857 .callback = sony_nc_C_enable,
858 .driver_data = sony_C_events,
859 .matches = {
860 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
861 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
862 },
863 },
864 {
865 .ident = "Sony Vaio FZ Series",
866 .callback = sony_nc_C_enable,
867 .driver_data = sony_C_events,
868 .matches = {
869 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
870 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
871 },
872 },
873 {
874 .ident = "Sony Vaio C Series",
875 .callback = sony_nc_C_enable,
876 .driver_data = sony_C_events,
877 .matches = {
878 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
879 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
880 },
881 },
882 {
883 .ident = "Sony Vaio N Series",
884 .callback = sony_nc_C_enable,
885 .driver_data = sony_C_events,
886 .matches = {
887 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
888 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
889 },
890 },
891 { }
892 };
893
894 /*
895 * ACPI callbacks
896 */
897 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
898 {
899 struct sony_nc_event *evmap;
900 u32 ev = event;
901 int result;
902
903 if (ev == 0x92) {
904 /* read the key pressed from EC.GECR
905 * A call to SN07 with 0x0202 will do it as well respecting
906 * the current protocol on different OSes
907 *
908 * Note: the path for GECR may be
909 * \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
910 * \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
911 *
912 * TODO: we may want to do the same for the older GHKE -need
913 * dmi list- so this snippet may become one more callback.
914 */
915 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
916 dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
917 else
918 ev = result & 0xFF;
919 }
920
921 if (sony_nc_events)
922 for (evmap = sony_nc_events; evmap->event; evmap++) {
923 if (evmap->data == ev) {
924 ev = evmap->event;
925 break;
926 }
927 }
928
929 dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
930 sony_laptop_report_input_event(ev);
931 acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
932 }
933
934 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
935 void *context, void **return_value)
936 {
937 struct acpi_namespace_node *node;
938 union acpi_operand_object *operand;
939
940 node = (struct acpi_namespace_node *)handle;
941 operand = (union acpi_operand_object *)node->object;
942
943 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
944 (u32) operand->method.param_count);
945
946 return AE_OK;
947 }
948
949 /*
950 * ACPI device
951 */
952 static int sony_nc_resume(struct acpi_device *device)
953 {
954 struct sony_nc_value *item;
955
956 for (item = sony_nc_values; item->name; item++) {
957 int ret;
958
959 if (!item->valid)
960 continue;
961 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
962 item->value, NULL);
963 if (ret < 0) {
964 printk("%s: %d\n", __FUNCTION__, ret);
965 break;
966 }
967 }
968
969 /* set the last requested brightness level */
970 if (sony_backlight_device &&
971 !sony_backlight_update_status(sony_backlight_device))
972 printk(KERN_WARNING DRV_PFX "unable to restore brightness level");
973
974 /* re-initialize models with specific requirements */
975 dmi_check_system(sony_nc_ids);
976
977 return 0;
978 }
979
980 static int sony_nc_add(struct acpi_device *device)
981 {
982 acpi_status status;
983 int result = 0;
984 acpi_handle handle;
985 struct sony_nc_value *item;
986
987 printk(KERN_INFO DRV_PFX "%s v%s.\n",
988 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
989
990 sony_nc_acpi_device = device;
991 strcpy(acpi_device_class(device), "sony/hotkey");
992
993 sony_nc_acpi_handle = device->handle;
994
995 /* read device status */
996 result = acpi_bus_get_status(device);
997 /* bail IFF the above call was successful and the device is not present */
998 if (!result && !device->status.present) {
999 dprintk("Device not present\n");
1000 result = -ENODEV;
1001 goto outwalk;
1002 }
1003
1004 if (debug) {
1005 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1006 1, sony_walk_callback, NULL, NULL);
1007 if (ACPI_FAILURE(status)) {
1008 printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1009 result = -ENODEV;
1010 goto outwalk;
1011 }
1012 }
1013
1014 /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1015 * should be respected as we already checked for the device presence above */
1016 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1017 dprintk("Invoking _INI\n");
1018 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1019 NULL, NULL)))
1020 dprintk("_INI Method failed\n");
1021 }
1022
1023 /* setup input devices and helper fifo */
1024 result = sony_laptop_setup_input(device);
1025 if (result) {
1026 printk(KERN_ERR DRV_PFX
1027 "Unabe to create input devices.\n");
1028 goto outwalk;
1029 }
1030
1031 status = acpi_install_notify_handler(sony_nc_acpi_handle,
1032 ACPI_DEVICE_NOTIFY,
1033 sony_acpi_notify, NULL);
1034 if (ACPI_FAILURE(status)) {
1035 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1036 result = -ENODEV;
1037 goto outinput;
1038 }
1039
1040 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
1041 sony_backlight_device = backlight_device_register("sony", NULL,
1042 NULL,
1043 &sony_backlight_ops);
1044
1045 if (IS_ERR(sony_backlight_device)) {
1046 printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1047 sony_backlight_device = NULL;
1048 } else {
1049 sony_backlight_device->props.brightness =
1050 sony_backlight_get_brightness
1051 (sony_backlight_device);
1052 sony_backlight_device->props.max_brightness =
1053 SONY_MAX_BRIGHTNESS - 1;
1054 }
1055
1056 }
1057
1058 /* initialize models with specific requirements */
1059 dmi_check_system(sony_nc_ids);
1060
1061 result = sony_pf_add();
1062 if (result)
1063 goto outbacklight;
1064
1065 /* create sony_pf sysfs attributes related to the SNC device */
1066 for (item = sony_nc_values; item->name; ++item) {
1067
1068 if (!debug && item->debug)
1069 continue;
1070
1071 /* find the available acpiget as described in the DSDT */
1072 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1073 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1074 *item->acpiget,
1075 &handle))) {
1076 dprintk("Found %s getter: %s\n",
1077 item->name, *item->acpiget);
1078 item->devattr.attr.mode |= S_IRUGO;
1079 break;
1080 }
1081 }
1082
1083 /* find the available acpiset as described in the DSDT */
1084 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1085 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1086 *item->acpiset,
1087 &handle))) {
1088 dprintk("Found %s setter: %s\n",
1089 item->name, *item->acpiset);
1090 item->devattr.attr.mode |= S_IWUSR;
1091 break;
1092 }
1093 }
1094
1095 if (item->devattr.attr.mode != 0) {
1096 result =
1097 device_create_file(&sony_pf_device->dev,
1098 &item->devattr);
1099 if (result)
1100 goto out_sysfs;
1101 }
1102 }
1103
1104 return 0;
1105
1106 out_sysfs:
1107 for (item = sony_nc_values; item->name; ++item) {
1108 device_remove_file(&sony_pf_device->dev, &item->devattr);
1109 }
1110 sony_pf_remove();
1111
1112 outbacklight:
1113 if (sony_backlight_device)
1114 backlight_device_unregister(sony_backlight_device);
1115
1116 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1117 ACPI_DEVICE_NOTIFY,
1118 sony_acpi_notify);
1119 if (ACPI_FAILURE(status))
1120 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1121
1122 outinput:
1123 sony_laptop_remove_input();
1124
1125 outwalk:
1126 return result;
1127 }
1128
1129 static int sony_nc_remove(struct acpi_device *device, int type)
1130 {
1131 acpi_status status;
1132 struct sony_nc_value *item;
1133
1134 if (sony_backlight_device)
1135 backlight_device_unregister(sony_backlight_device);
1136
1137 sony_nc_acpi_device = NULL;
1138
1139 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1140 ACPI_DEVICE_NOTIFY,
1141 sony_acpi_notify);
1142 if (ACPI_FAILURE(status))
1143 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1144
1145 for (item = sony_nc_values; item->name; ++item) {
1146 device_remove_file(&sony_pf_device->dev, &item->devattr);
1147 }
1148
1149 sony_pf_remove();
1150 sony_laptop_remove_input();
1151 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1152
1153 return 0;
1154 }
1155
1156 static const struct acpi_device_id sony_device_ids[] = {
1157 {SONY_NC_HID, 0},
1158 {SONY_PIC_HID, 0},
1159 {"", 0},
1160 };
1161 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1162
1163 static const struct acpi_device_id sony_nc_device_ids[] = {
1164 {SONY_NC_HID, 0},
1165 {"", 0},
1166 };
1167
1168 static struct acpi_driver sony_nc_driver = {
1169 .name = SONY_NC_DRIVER_NAME,
1170 .class = SONY_NC_CLASS,
1171 .ids = sony_nc_device_ids,
1172 .owner = THIS_MODULE,
1173 .ops = {
1174 .add = sony_nc_add,
1175 .remove = sony_nc_remove,
1176 .resume = sony_nc_resume,
1177 },
1178 };
1179
1180 /*********** SPIC (SNY6001) Device ***********/
1181
1182 #define SONYPI_DEVICE_TYPE1 0x00000001
1183 #define SONYPI_DEVICE_TYPE2 0x00000002
1184 #define SONYPI_DEVICE_TYPE3 0x00000004
1185 #define SONYPI_DEVICE_TYPE4 0x00000008
1186
1187 #define SONYPI_TYPE1_OFFSET 0x04
1188 #define SONYPI_TYPE2_OFFSET 0x12
1189 #define SONYPI_TYPE3_OFFSET 0x12
1190 #define SONYPI_TYPE4_OFFSET 0x12
1191
1192 struct sony_pic_ioport {
1193 struct acpi_resource_io io1;
1194 struct acpi_resource_io io2;
1195 struct list_head list;
1196 };
1197
1198 struct sony_pic_irq {
1199 struct acpi_resource_irq irq;
1200 struct list_head list;
1201 };
1202
1203 struct sonypi_eventtypes {
1204 u8 data;
1205 unsigned long mask;
1206 struct sonypi_event *events;
1207 };
1208
1209 struct device_ctrl {
1210 int model;
1211 int (*handle_irq)(const u8, const u8);
1212 u16 evport_offset;
1213 u8 has_camera;
1214 u8 has_bluetooth;
1215 u8 has_wwan;
1216 struct sonypi_eventtypes *event_types;
1217 };
1218
1219 struct sony_pic_dev {
1220 struct device_ctrl *control;
1221 struct acpi_device *acpi_dev;
1222 struct sony_pic_irq *cur_irq;
1223 struct sony_pic_ioport *cur_ioport;
1224 struct list_head interrupts;
1225 struct list_head ioports;
1226 struct mutex lock;
1227 u8 camera_power;
1228 u8 bluetooth_power;
1229 u8 wwan_power;
1230 };
1231
1232 static struct sony_pic_dev spic_dev = {
1233 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
1234 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
1235 };
1236
1237 /* Event masks */
1238 #define SONYPI_JOGGER_MASK 0x00000001
1239 #define SONYPI_CAPTURE_MASK 0x00000002
1240 #define SONYPI_FNKEY_MASK 0x00000004
1241 #define SONYPI_BLUETOOTH_MASK 0x00000008
1242 #define SONYPI_PKEY_MASK 0x00000010
1243 #define SONYPI_BACK_MASK 0x00000020
1244 #define SONYPI_HELP_MASK 0x00000040
1245 #define SONYPI_LID_MASK 0x00000080
1246 #define SONYPI_ZOOM_MASK 0x00000100
1247 #define SONYPI_THUMBPHRASE_MASK 0x00000200
1248 #define SONYPI_MEYE_MASK 0x00000400
1249 #define SONYPI_MEMORYSTICK_MASK 0x00000800
1250 #define SONYPI_BATTERY_MASK 0x00001000
1251 #define SONYPI_WIRELESS_MASK 0x00002000
1252
1253 struct sonypi_event {
1254 u8 data;
1255 u8 event;
1256 };
1257
1258 /* The set of possible button release events */
1259 static struct sonypi_event sonypi_releaseev[] = {
1260 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1261 { 0, 0 }
1262 };
1263
1264 /* The set of possible jogger events */
1265 static struct sonypi_event sonypi_joggerev[] = {
1266 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1267 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1268 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1269 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1270 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1271 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1272 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1273 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1274 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1275 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1276 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1277 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1278 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1279 { 0, 0 }
1280 };
1281
1282 /* The set of possible capture button events */
1283 static struct sonypi_event sonypi_captureev[] = {
1284 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1285 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1286 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1287 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1288 { 0, 0 }
1289 };
1290
1291 /* The set of possible fnkeys events */
1292 static struct sonypi_event sonypi_fnkeyev[] = {
1293 { 0x10, SONYPI_EVENT_FNKEY_ESC },
1294 { 0x11, SONYPI_EVENT_FNKEY_F1 },
1295 { 0x12, SONYPI_EVENT_FNKEY_F2 },
1296 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1297 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1298 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1299 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1300 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1301 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1302 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1303 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1304 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1305 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1306 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1307 { 0x21, SONYPI_EVENT_FNKEY_1 },
1308 { 0x22, SONYPI_EVENT_FNKEY_2 },
1309 { 0x31, SONYPI_EVENT_FNKEY_D },
1310 { 0x32, SONYPI_EVENT_FNKEY_E },
1311 { 0x33, SONYPI_EVENT_FNKEY_F },
1312 { 0x34, SONYPI_EVENT_FNKEY_S },
1313 { 0x35, SONYPI_EVENT_FNKEY_B },
1314 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1315 { 0, 0 }
1316 };
1317
1318 /* The set of possible program key events */
1319 static struct sonypi_event sonypi_pkeyev[] = {
1320 { 0x01, SONYPI_EVENT_PKEY_P1 },
1321 { 0x02, SONYPI_EVENT_PKEY_P2 },
1322 { 0x04, SONYPI_EVENT_PKEY_P3 },
1323 { 0, 0 }
1324 };
1325
1326 /* The set of possible bluetooth events */
1327 static struct sonypi_event sonypi_blueev[] = {
1328 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1329 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1330 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1331 { 0, 0 }
1332 };
1333
1334 /* The set of possible wireless events */
1335 static struct sonypi_event sonypi_wlessev[] = {
1336 { 0x59, SONYPI_EVENT_WIRELESS_ON },
1337 { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1338 { 0, 0 }
1339 };
1340
1341 /* The set of possible back button events */
1342 static struct sonypi_event sonypi_backev[] = {
1343 { 0x20, SONYPI_EVENT_BACK_PRESSED },
1344 { 0, 0 }
1345 };
1346
1347 /* The set of possible help button events */
1348 static struct sonypi_event sonypi_helpev[] = {
1349 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1350 { 0, 0 }
1351 };
1352
1353
1354 /* The set of possible lid events */
1355 static struct sonypi_event sonypi_lidev[] = {
1356 { 0x51, SONYPI_EVENT_LID_CLOSED },
1357 { 0x50, SONYPI_EVENT_LID_OPENED },
1358 { 0, 0 }
1359 };
1360
1361 /* The set of possible zoom events */
1362 static struct sonypi_event sonypi_zoomev[] = {
1363 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1364 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1365 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1366 { 0, 0 }
1367 };
1368
1369 /* The set of possible thumbphrase events */
1370 static struct sonypi_event sonypi_thumbphraseev[] = {
1371 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1372 { 0, 0 }
1373 };
1374
1375 /* The set of possible motioneye camera events */
1376 static struct sonypi_event sonypi_meyeev[] = {
1377 { 0x00, SONYPI_EVENT_MEYE_FACE },
1378 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1379 { 0, 0 }
1380 };
1381
1382 /* The set of possible memorystick events */
1383 static struct sonypi_event sonypi_memorystickev[] = {
1384 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1385 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1386 { 0, 0 }
1387 };
1388
1389 /* The set of possible battery events */
1390 static struct sonypi_event sonypi_batteryev[] = {
1391 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1392 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1393 { 0, 0 }
1394 };
1395
1396 static struct sonypi_eventtypes type1_events[] = {
1397 { 0, 0xffffffff, sonypi_releaseev },
1398 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1399 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1400 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1401 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1402 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1403 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1404 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1405 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1406 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1407 { 0 },
1408 };
1409 static struct sonypi_eventtypes type2_events[] = {
1410 { 0, 0xffffffff, sonypi_releaseev },
1411 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1412 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1413 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1414 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1415 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1416 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1417 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1418 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1419 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1420 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1421 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1422 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1423 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1424 { 0 },
1425 };
1426 static struct sonypi_eventtypes type3_events[] = {
1427 { 0, 0xffffffff, sonypi_releaseev },
1428 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1429 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1430 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1431 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1432 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1433 { 0 },
1434 };
1435 static struct sonypi_eventtypes type4_events[] = {
1436 { 0, 0xffffffff, sonypi_releaseev },
1437 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1438 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1439 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1440 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1441 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1442 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1443 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1444 { 0 },
1445 };
1446
1447 /* low level spic calls */
1448 #define ITERATIONS_LONG 10000
1449 #define ITERATIONS_SHORT 10
1450 #define wait_on_command(command, iterations) { \
1451 unsigned int n = iterations; \
1452 while (--n && (command)) \
1453 udelay(1); \
1454 if (!n) \
1455 dprintk("command failed at %s : %s (line %d)\n", \
1456 __FILE__, __FUNCTION__, __LINE__); \
1457 }
1458
1459 static u8 sony_pic_call1(u8 dev)
1460 {
1461 u8 v1, v2;
1462
1463 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1464 ITERATIONS_LONG);
1465 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1466 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1467 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1468 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1469 return v2;
1470 }
1471
1472 static u8 sony_pic_call2(u8 dev, u8 fn)
1473 {
1474 u8 v1;
1475
1476 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1477 ITERATIONS_LONG);
1478 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1479 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1480 ITERATIONS_LONG);
1481 outb(fn, spic_dev.cur_ioport->io1.minimum);
1482 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1483 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1484 return v1;
1485 }
1486
1487 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1488 {
1489 u8 v1;
1490
1491 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1492 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1493 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1494 outb(fn, spic_dev.cur_ioport->io1.minimum);
1495 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1496 outb(v, spic_dev.cur_ioport->io1.minimum);
1497 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1498 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1499 dev, fn, v, v1);
1500 return v1;
1501 }
1502
1503 /*
1504 * minidrivers for SPIC models
1505 */
1506 static int type4_handle_irq(const u8 data_mask, const u8 ev)
1507 {
1508 /*
1509 * 0x31 could mean we have to take some extra action and wait for
1510 * the next irq for some Type4 models, it will generate a new
1511 * irq and we can read new data from the device:
1512 * - 0x5c and 0x5f requires 0xA0
1513 * - 0x61 requires 0xB3
1514 */
1515 if (data_mask == 0x31) {
1516 if (ev == 0x5c || ev == 0x5f)
1517 sony_pic_call1(0xA0);
1518 else if (ev == 0x61)
1519 sony_pic_call1(0xB3);
1520 return 0;
1521 }
1522 return 1;
1523 }
1524
1525 static struct device_ctrl spic_types[] = {
1526 {
1527 .model = SONYPI_DEVICE_TYPE1,
1528 .handle_irq = NULL,
1529 .evport_offset = SONYPI_TYPE1_OFFSET,
1530 .event_types = type1_events,
1531 },
1532 {
1533 .model = SONYPI_DEVICE_TYPE2,
1534 .handle_irq = NULL,
1535 .evport_offset = SONYPI_TYPE2_OFFSET,
1536 .event_types = type2_events,
1537 },
1538 {
1539 .model = SONYPI_DEVICE_TYPE3,
1540 .handle_irq = NULL,
1541 .evport_offset = SONYPI_TYPE3_OFFSET,
1542 .event_types = type3_events,
1543 },
1544 {
1545 .model = SONYPI_DEVICE_TYPE4,
1546 .handle_irq = type4_handle_irq,
1547 .evport_offset = SONYPI_TYPE4_OFFSET,
1548 .event_types = type4_events,
1549 },
1550 };
1551
1552 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1553 {
1554 struct pci_dev *pcidev;
1555
1556 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1557 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1558 if (pcidev) {
1559 dev->control = &spic_types[0];
1560 goto out;
1561 }
1562
1563 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1564 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1565 if (pcidev) {
1566 dev->control = &spic_types[2];
1567 goto out;
1568 }
1569
1570 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1571 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1572 if (pcidev) {
1573 dev->control = &spic_types[3];
1574 goto out;
1575 }
1576
1577 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1578 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1579 if (pcidev) {
1580 dev->control = &spic_types[3];
1581 goto out;
1582 }
1583
1584 /* default */
1585 dev->control = &spic_types[1];
1586
1587 out:
1588 if (pcidev)
1589 pci_dev_put(pcidev);
1590
1591 printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1592 dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1593 dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
1594 dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
1595 }
1596
1597 /* camera tests and poweron/poweroff */
1598 #define SONYPI_CAMERA_PICTURE 5
1599 #define SONYPI_CAMERA_CONTROL 0x10
1600
1601 #define SONYPI_CAMERA_BRIGHTNESS 0
1602 #define SONYPI_CAMERA_CONTRAST 1
1603 #define SONYPI_CAMERA_HUE 2
1604 #define SONYPI_CAMERA_COLOR 3
1605 #define SONYPI_CAMERA_SHARPNESS 4
1606
1607 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
1608 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
1609 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
1610 #define SONYPI_CAMERA_MUTE_MASK 0x40
1611
1612 /* the rest don't need a loop until not 0xff */
1613 #define SONYPI_CAMERA_AGC 6
1614 #define SONYPI_CAMERA_AGC_MASK 0x30
1615 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
1616
1617 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
1618 #define SONYPI_CAMERA_CONTROL 0x10
1619
1620 #define SONYPI_CAMERA_STATUS 7
1621 #define SONYPI_CAMERA_STATUS_READY 0x2
1622 #define SONYPI_CAMERA_STATUS_POSITION 0x4
1623
1624 #define SONYPI_DIRECTION_BACKWARDS 0x4
1625
1626 #define SONYPI_CAMERA_REVISION 8
1627 #define SONYPI_CAMERA_ROMVERSION 9
1628
1629 static int __sony_pic_camera_ready(void)
1630 {
1631 u8 v;
1632
1633 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1634 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1635 }
1636
1637 static int __sony_pic_camera_off(void)
1638 {
1639 if (!camera) {
1640 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1641 return -ENODEV;
1642 }
1643
1644 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1645 SONYPI_CAMERA_MUTE_MASK),
1646 ITERATIONS_SHORT);
1647
1648 if (spic_dev.camera_power) {
1649 sony_pic_call2(0x91, 0);
1650 spic_dev.camera_power = 0;
1651 }
1652 return 0;
1653 }
1654
1655 static int __sony_pic_camera_on(void)
1656 {
1657 int i, j, x;
1658
1659 if (!camera) {
1660 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1661 return -ENODEV;
1662 }
1663
1664 if (spic_dev.camera_power)
1665 return 0;
1666
1667 for (j = 5; j > 0; j--) {
1668
1669 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1670 msleep(10);
1671 sony_pic_call1(0x93);
1672
1673 for (i = 400; i > 0; i--) {
1674 if (__sony_pic_camera_ready())
1675 break;
1676 msleep(10);
1677 }
1678 if (i)
1679 break;
1680 }
1681
1682 if (j == 0) {
1683 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1684 return -ENODEV;
1685 }
1686
1687 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1688 0x5a),
1689 ITERATIONS_SHORT);
1690
1691 spic_dev.camera_power = 1;
1692 return 0;
1693 }
1694
1695 /* External camera command (exported to the motion eye v4l driver) */
1696 int sony_pic_camera_command(int command, u8 value)
1697 {
1698 if (!camera)
1699 return -EIO;
1700
1701 mutex_lock(&spic_dev.lock);
1702
1703 switch (command) {
1704 case SONY_PIC_COMMAND_SETCAMERA:
1705 if (value)
1706 __sony_pic_camera_on();
1707 else
1708 __sony_pic_camera_off();
1709 break;
1710 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1711 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1712 ITERATIONS_SHORT);
1713 break;
1714 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1715 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1716 ITERATIONS_SHORT);
1717 break;
1718 case SONY_PIC_COMMAND_SETCAMERAHUE:
1719 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1720 ITERATIONS_SHORT);
1721 break;
1722 case SONY_PIC_COMMAND_SETCAMERACOLOR:
1723 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1724 ITERATIONS_SHORT);
1725 break;
1726 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1727 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1728 ITERATIONS_SHORT);
1729 break;
1730 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1731 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1732 ITERATIONS_SHORT);
1733 break;
1734 case SONY_PIC_COMMAND_SETCAMERAAGC:
1735 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1736 ITERATIONS_SHORT);
1737 break;
1738 default:
1739 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1740 command);
1741 break;
1742 }
1743 mutex_unlock(&spic_dev.lock);
1744 return 0;
1745 }
1746 EXPORT_SYMBOL(sony_pic_camera_command);
1747
1748 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1749 static void sony_pic_set_wwanpower(u8 state)
1750 {
1751 state = !!state;
1752 mutex_lock(&spic_dev.lock);
1753 if (spic_dev.wwan_power == state) {
1754 mutex_unlock(&spic_dev.lock);
1755 return;
1756 }
1757 sony_pic_call2(0xB0, state);
1758 spic_dev.wwan_power = state;
1759 mutex_unlock(&spic_dev.lock);
1760 }
1761
1762 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1763 struct device_attribute *attr,
1764 const char *buffer, size_t count)
1765 {
1766 unsigned long value;
1767 if (count > 31)
1768 return -EINVAL;
1769
1770 value = simple_strtoul(buffer, NULL, 10);
1771 sony_pic_set_wwanpower(value);
1772
1773 return count;
1774 }
1775
1776 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1777 struct device_attribute *attr, char *buffer)
1778 {
1779 ssize_t count;
1780 mutex_lock(&spic_dev.lock);
1781 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1782 mutex_unlock(&spic_dev.lock);
1783 return count;
1784 }
1785
1786 /* bluetooth subsystem power state */
1787 static void __sony_pic_set_bluetoothpower(u8 state)
1788 {
1789 state = !!state;
1790 if (spic_dev.bluetooth_power == state)
1791 return;
1792 sony_pic_call2(0x96, state);
1793 sony_pic_call1(0x82);
1794 spic_dev.bluetooth_power = state;
1795 }
1796
1797 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1798 struct device_attribute *attr,
1799 const char *buffer, size_t count)
1800 {
1801 unsigned long value;
1802 if (count > 31)
1803 return -EINVAL;
1804
1805 value = simple_strtoul(buffer, NULL, 10);
1806 mutex_lock(&spic_dev.lock);
1807 __sony_pic_set_bluetoothpower(value);
1808 mutex_unlock(&spic_dev.lock);
1809
1810 return count;
1811 }
1812
1813 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1814 struct device_attribute *attr, char *buffer)
1815 {
1816 ssize_t count = 0;
1817 mutex_lock(&spic_dev.lock);
1818 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1819 mutex_unlock(&spic_dev.lock);
1820 return count;
1821 }
1822
1823 /* fan speed */
1824 /* FAN0 information (reverse engineered from ACPI tables) */
1825 #define SONY_PIC_FAN0_STATUS 0x93
1826 static int sony_pic_set_fanspeed(unsigned long value)
1827 {
1828 return ec_write(SONY_PIC_FAN0_STATUS, value);
1829 }
1830
1831 static int sony_pic_get_fanspeed(u8 *value)
1832 {
1833 return ec_read(SONY_PIC_FAN0_STATUS, value);
1834 }
1835
1836 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1837 struct device_attribute *attr,
1838 const char *buffer, size_t count)
1839 {
1840 unsigned long value;
1841 if (count > 31)
1842 return -EINVAL;
1843
1844 value = simple_strtoul(buffer, NULL, 10);
1845 if (sony_pic_set_fanspeed(value))
1846 return -EIO;
1847
1848 return count;
1849 }
1850
1851 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1852 struct device_attribute *attr, char *buffer)
1853 {
1854 u8 value = 0;
1855 if (sony_pic_get_fanspeed(&value))
1856 return -EIO;
1857
1858 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1859 }
1860
1861 #define SPIC_ATTR(_name, _mode) \
1862 struct device_attribute spic_attr_##_name = __ATTR(_name, \
1863 _mode, sony_pic_## _name ##_show, \
1864 sony_pic_## _name ##_store)
1865
1866 static SPIC_ATTR(bluetoothpower, 0644);
1867 static SPIC_ATTR(wwanpower, 0644);
1868 static SPIC_ATTR(fanspeed, 0644);
1869
1870 static struct attribute *spic_attributes[] = {
1871 &spic_attr_bluetoothpower.attr,
1872 &spic_attr_wwanpower.attr,
1873 &spic_attr_fanspeed.attr,
1874 NULL
1875 };
1876
1877 static struct attribute_group spic_attribute_group = {
1878 .attrs = spic_attributes
1879 };
1880
1881 /******** SONYPI compatibility **********/
1882 #ifdef CONFIG_SONYPI_COMPAT
1883
1884 /* battery / brightness / temperature addresses */
1885 #define SONYPI_BAT_FLAGS 0x81
1886 #define SONYPI_LCD_LIGHT 0x96
1887 #define SONYPI_BAT1_PCTRM 0xa0
1888 #define SONYPI_BAT1_LEFT 0xa2
1889 #define SONYPI_BAT1_MAXRT 0xa4
1890 #define SONYPI_BAT2_PCTRM 0xa8
1891 #define SONYPI_BAT2_LEFT 0xaa
1892 #define SONYPI_BAT2_MAXRT 0xac
1893 #define SONYPI_BAT1_MAXTK 0xb0
1894 #define SONYPI_BAT1_FULL 0xb2
1895 #define SONYPI_BAT2_MAXTK 0xb8
1896 #define SONYPI_BAT2_FULL 0xba
1897 #define SONYPI_TEMP_STATUS 0xC1
1898
1899 struct sonypi_compat_s {
1900 struct fasync_struct *fifo_async;
1901 struct kfifo *fifo;
1902 spinlock_t fifo_lock;
1903 wait_queue_head_t fifo_proc_list;
1904 atomic_t open_count;
1905 };
1906 static struct sonypi_compat_s sonypi_compat = {
1907 .open_count = ATOMIC_INIT(0),
1908 };
1909
1910 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1911 {
1912 int retval;
1913
1914 retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1915 if (retval < 0)
1916 return retval;
1917 return 0;
1918 }
1919
1920 static int sonypi_misc_release(struct inode *inode, struct file *file)
1921 {
1922 sonypi_misc_fasync(-1, file, 0);
1923 atomic_dec(&sonypi_compat.open_count);
1924 return 0;
1925 }
1926
1927 static int sonypi_misc_open(struct inode *inode, struct file *file)
1928 {
1929 /* Flush input queue on first open */
1930 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1931 kfifo_reset(sonypi_compat.fifo);
1932 return 0;
1933 }
1934
1935 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1936 size_t count, loff_t *pos)
1937 {
1938 ssize_t ret;
1939 unsigned char c;
1940
1941 if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1942 (file->f_flags & O_NONBLOCK))
1943 return -EAGAIN;
1944
1945 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1946 kfifo_len(sonypi_compat.fifo) != 0);
1947 if (ret)
1948 return ret;
1949
1950 while (ret < count &&
1951 (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1952 if (put_user(c, buf++))
1953 return -EFAULT;
1954 ret++;
1955 }
1956
1957 if (ret > 0) {
1958 struct inode *inode = file->f_path.dentry->d_inode;
1959 inode->i_atime = current_fs_time(inode->i_sb);
1960 }
1961
1962 return ret;
1963 }
1964
1965 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1966 {
1967 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1968 if (kfifo_len(sonypi_compat.fifo))
1969 return POLLIN | POLLRDNORM;
1970 return 0;
1971 }
1972
1973 static int ec_read16(u8 addr, u16 *value)
1974 {
1975 u8 val_lb, val_hb;
1976 if (ec_read(addr, &val_lb))
1977 return -1;
1978 if (ec_read(addr + 1, &val_hb))
1979 return -1;
1980 *value = val_lb | (val_hb << 8);
1981 return 0;
1982 }
1983
1984 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1985 unsigned int cmd, unsigned long arg)
1986 {
1987 int ret = 0;
1988 void __user *argp = (void __user *)arg;
1989 u8 val8;
1990 u16 val16;
1991 int value;
1992
1993 mutex_lock(&spic_dev.lock);
1994 switch (cmd) {
1995 case SONYPI_IOCGBRT:
1996 if (sony_backlight_device == NULL) {
1997 ret = -EIO;
1998 break;
1999 }
2000 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2001 ret = -EIO;
2002 break;
2003 }
2004 val8 = ((value & 0xff) - 1) << 5;
2005 if (copy_to_user(argp, &val8, sizeof(val8)))
2006 ret = -EFAULT;
2007 break;
2008 case SONYPI_IOCSBRT:
2009 if (sony_backlight_device == NULL) {
2010 ret = -EIO;
2011 break;
2012 }
2013 if (copy_from_user(&val8, argp, sizeof(val8))) {
2014 ret = -EFAULT;
2015 break;
2016 }
2017 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2018 (val8 >> 5) + 1, NULL)) {
2019 ret = -EIO;
2020 break;
2021 }
2022 /* sync the backlight device status */
2023 sony_backlight_device->props.brightness =
2024 sony_backlight_get_brightness(sony_backlight_device);
2025 break;
2026 case SONYPI_IOCGBAT1CAP:
2027 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2028 ret = -EIO;
2029 break;
2030 }
2031 if (copy_to_user(argp, &val16, sizeof(val16)))
2032 ret = -EFAULT;
2033 break;
2034 case SONYPI_IOCGBAT1REM:
2035 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2036 ret = -EIO;
2037 break;
2038 }
2039 if (copy_to_user(argp, &val16, sizeof(val16)))
2040 ret = -EFAULT;
2041 break;
2042 case SONYPI_IOCGBAT2CAP:
2043 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2044 ret = -EIO;
2045 break;
2046 }
2047 if (copy_to_user(argp, &val16, sizeof(val16)))
2048 ret = -EFAULT;
2049 break;
2050 case SONYPI_IOCGBAT2REM:
2051 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2052 ret = -EIO;
2053 break;
2054 }
2055 if (copy_to_user(argp, &val16, sizeof(val16)))
2056 ret = -EFAULT;
2057 break;
2058 case SONYPI_IOCGBATFLAGS:
2059 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2060 ret = -EIO;
2061 break;
2062 }
2063 val8 &= 0x07;
2064 if (copy_to_user(argp, &val8, sizeof(val8)))
2065 ret = -EFAULT;
2066 break;
2067 case SONYPI_IOCGBLUE:
2068 val8 = spic_dev.bluetooth_power;
2069 if (copy_to_user(argp, &val8, sizeof(val8)))
2070 ret = -EFAULT;
2071 break;
2072 case SONYPI_IOCSBLUE:
2073 if (copy_from_user(&val8, argp, sizeof(val8))) {
2074 ret = -EFAULT;
2075 break;
2076 }
2077 __sony_pic_set_bluetoothpower(val8);
2078 break;
2079 /* FAN Controls */
2080 case SONYPI_IOCGFAN:
2081 if (sony_pic_get_fanspeed(&val8)) {
2082 ret = -EIO;
2083 break;
2084 }
2085 if (copy_to_user(argp, &val8, sizeof(val8)))
2086 ret = -EFAULT;
2087 break;
2088 case SONYPI_IOCSFAN:
2089 if (copy_from_user(&val8, argp, sizeof(val8))) {
2090 ret = -EFAULT;
2091 break;
2092 }
2093 if (sony_pic_set_fanspeed(val8))
2094 ret = -EIO;
2095 break;
2096 /* GET Temperature (useful under APM) */
2097 case SONYPI_IOCGTEMP:
2098 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2099 ret = -EIO;
2100 break;
2101 }
2102 if (copy_to_user(argp, &val8, sizeof(val8)))
2103 ret = -EFAULT;
2104 break;
2105 default:
2106 ret = -EINVAL;
2107 }
2108 mutex_unlock(&spic_dev.lock);
2109 return ret;
2110 }
2111
2112 static const struct file_operations sonypi_misc_fops = {
2113 .owner = THIS_MODULE,
2114 .read = sonypi_misc_read,
2115 .poll = sonypi_misc_poll,
2116 .open = sonypi_misc_open,
2117 .release = sonypi_misc_release,
2118 .fasync = sonypi_misc_fasync,
2119 .ioctl = sonypi_misc_ioctl,
2120 };
2121
2122 static struct miscdevice sonypi_misc_device = {
2123 .minor = MISC_DYNAMIC_MINOR,
2124 .name = "sonypi",
2125 .fops = &sonypi_misc_fops,
2126 };
2127
2128 static void sonypi_compat_report_event(u8 event)
2129 {
2130 kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2131 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2132 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2133 }
2134
2135 static int sonypi_compat_init(void)
2136 {
2137 int error;
2138
2139 spin_lock_init(&sonypi_compat.fifo_lock);
2140 sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2141 &sonypi_compat.fifo_lock);
2142 if (IS_ERR(sonypi_compat.fifo)) {
2143 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2144 return PTR_ERR(sonypi_compat.fifo);
2145 }
2146
2147 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2148
2149 if (minor != -1)
2150 sonypi_misc_device.minor = minor;
2151 error = misc_register(&sonypi_misc_device);
2152 if (error) {
2153 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2154 goto err_free_kfifo;
2155 }
2156 if (minor == -1)
2157 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2158 sonypi_misc_device.minor);
2159
2160 return 0;
2161
2162 err_free_kfifo:
2163 kfifo_free(sonypi_compat.fifo);
2164 return error;
2165 }
2166
2167 static void sonypi_compat_exit(void)
2168 {
2169 misc_deregister(&sonypi_misc_device);
2170 kfifo_free(sonypi_compat.fifo);
2171 }
2172 #else
2173 static int sonypi_compat_init(void) { return 0; }
2174 static void sonypi_compat_exit(void) { }
2175 static void sonypi_compat_report_event(u8 event) { }
2176 #endif /* CONFIG_SONYPI_COMPAT */
2177
2178 /*
2179 * ACPI callbacks
2180 */
2181 static acpi_status
2182 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2183 {
2184 u32 i;
2185 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2186
2187 switch (resource->type) {
2188 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2189 {
2190 /* start IO enumeration */
2191 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2192 if (!ioport)
2193 return AE_ERROR;
2194
2195 list_add(&ioport->list, &dev->ioports);
2196 return AE_OK;
2197 }
2198
2199 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2200 /* end IO enumeration */
2201 return AE_OK;
2202
2203 case ACPI_RESOURCE_TYPE_IRQ:
2204 {
2205 struct acpi_resource_irq *p = &resource->data.irq;
2206 struct sony_pic_irq *interrupt = NULL;
2207 if (!p || !p->interrupt_count) {
2208 /*
2209 * IRQ descriptors may have no IRQ# bits set,
2210 * particularly those those w/ _STA disabled
2211 */
2212 dprintk("Blank IRQ resource\n");
2213 return AE_OK;
2214 }
2215 for (i = 0; i < p->interrupt_count; i++) {
2216 if (!p->interrupts[i]) {
2217 printk(KERN_WARNING DRV_PFX
2218 "Invalid IRQ %d\n",
2219 p->interrupts[i]);
2220 continue;
2221 }
2222 interrupt = kzalloc(sizeof(*interrupt),
2223 GFP_KERNEL);
2224 if (!interrupt)
2225 return AE_ERROR;
2226
2227 list_add(&interrupt->list, &dev->interrupts);
2228 interrupt->irq.triggering = p->triggering;
2229 interrupt->irq.polarity = p->polarity;
2230 interrupt->irq.sharable = p->sharable;
2231 interrupt->irq.interrupt_count = 1;
2232 interrupt->irq.interrupts[0] = p->interrupts[i];
2233 }
2234 return AE_OK;
2235 }
2236 case ACPI_RESOURCE_TYPE_IO:
2237 {
2238 struct acpi_resource_io *io = &resource->data.io;
2239 struct sony_pic_ioport *ioport =
2240 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2241 if (!io) {
2242 dprintk("Blank IO resource\n");
2243 return AE_OK;
2244 }
2245
2246 if (!ioport->io1.minimum) {
2247 memcpy(&ioport->io1, io, sizeof(*io));
2248 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2249 ioport->io1.address_length);
2250 }
2251 else if (!ioport->io2.minimum) {
2252 memcpy(&ioport->io2, io, sizeof(*io));
2253 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2254 ioport->io2.address_length);
2255 }
2256 else {
2257 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2258 return AE_ERROR;
2259 }
2260 return AE_OK;
2261 }
2262 default:
2263 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2264 resource->type);
2265
2266 case ACPI_RESOURCE_TYPE_END_TAG:
2267 return AE_OK;
2268 }
2269 return AE_CTRL_TERMINATE;
2270 }
2271
2272 static int sony_pic_possible_resources(struct acpi_device *device)
2273 {
2274 int result = 0;
2275 acpi_status status = AE_OK;
2276
2277 if (!device)
2278 return -EINVAL;
2279
2280 /* get device status */
2281 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2282 dprintk("Evaluating _STA\n");
2283 result = acpi_bus_get_status(device);
2284 if (result) {
2285 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2286 goto end;
2287 }
2288
2289 if (!device->status.enabled)
2290 dprintk("Device disabled\n");
2291 else
2292 dprintk("Device enabled\n");
2293
2294 /*
2295 * Query and parse 'method'
2296 */
2297 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2298 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2299 sony_pic_read_possible_resource, &spic_dev);
2300 if (ACPI_FAILURE(status)) {
2301 printk(KERN_WARNING DRV_PFX
2302 "Failure evaluating %s\n",
2303 METHOD_NAME__PRS);
2304 result = -ENODEV;
2305 }
2306 end:
2307 return result;
2308 }
2309
2310 /*
2311 * Disable the spic device by calling its _DIS method
2312 */
2313 static int sony_pic_disable(struct acpi_device *device)
2314 {
2315 if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
2316 "_DIS", NULL, NULL)))
2317 return -ENXIO;
2318
2319 dprintk("Device disabled\n");
2320 return 0;
2321 }
2322
2323
2324 /*
2325 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2326 *
2327 * Call _SRS to set current resources
2328 */
2329 static int sony_pic_enable(struct acpi_device *device,
2330 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2331 {
2332 acpi_status status;
2333 int result = 0;
2334 /* Type 1 resource layout is:
2335 * IO
2336 * IO
2337 * IRQNoFlags
2338 * End
2339 *
2340 * Type 2 and 3 resource layout is:
2341 * IO
2342 * IRQNoFlags
2343 * End
2344 */
2345 struct {
2346 struct acpi_resource res1;
2347 struct acpi_resource res2;
2348 struct acpi_resource res3;
2349 struct acpi_resource res4;
2350 } *resource;
2351 struct acpi_buffer buffer = { 0, NULL };
2352
2353 if (!ioport || !irq)
2354 return -EINVAL;
2355
2356 /* init acpi_buffer */
2357 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2358 if (!resource)
2359 return -ENOMEM;
2360
2361 buffer.length = sizeof(*resource) + 1;
2362 buffer.pointer = resource;
2363
2364 /* setup Type 1 resources */
2365 if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2366
2367 /* setup io resources */
2368 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2369 resource->res1.length = sizeof(struct acpi_resource);
2370 memcpy(&resource->res1.data.io, &ioport->io1,
2371 sizeof(struct acpi_resource_io));
2372
2373 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2374 resource->res2.length = sizeof(struct acpi_resource);
2375 memcpy(&resource->res2.data.io, &ioport->io2,
2376 sizeof(struct acpi_resource_io));
2377
2378 /* setup irq resource */
2379 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2380 resource->res3.length = sizeof(struct acpi_resource);
2381 memcpy(&resource->res3.data.irq, &irq->irq,
2382 sizeof(struct acpi_resource_irq));
2383 /* we requested a shared irq */
2384 resource->res3.data.irq.sharable = ACPI_SHARED;
2385
2386 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2387
2388 }
2389 /* setup Type 2/3 resources */
2390 else {
2391 /* setup io resource */
2392 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2393 resource->res1.length = sizeof(struct acpi_resource);
2394 memcpy(&resource->res1.data.io, &ioport->io1,
2395 sizeof(struct acpi_resource_io));
2396
2397 /* setup irq resource */
2398 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2399 resource->res2.length = sizeof(struct acpi_resource);
2400 memcpy(&resource->res2.data.irq, &irq->irq,
2401 sizeof(struct acpi_resource_irq));
2402 /* we requested a shared irq */
2403 resource->res2.data.irq.sharable = ACPI_SHARED;
2404
2405 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2406 }
2407
2408 /* Attempt to set the resource */
2409 dprintk("Evaluating _SRS\n");
2410 status = acpi_set_current_resources(device->handle, &buffer);
2411
2412 /* check for total failure */
2413 if (ACPI_FAILURE(status)) {
2414 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2415 result = -ENODEV;
2416 goto end;
2417 }
2418
2419 /* Necessary device initializations calls (from sonypi) */
2420 sony_pic_call1(0x82);
2421 sony_pic_call2(0x81, 0xff);
2422 sony_pic_call1(compat ? 0x92 : 0x82);
2423
2424 end:
2425 kfree(resource);
2426 return result;
2427 }
2428
2429 /*****************
2430 *
2431 * ISR: some event is available
2432 *
2433 *****************/
2434 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2435 {
2436 int i, j;
2437 u8 ev = 0;
2438 u8 data_mask = 0;
2439 u8 device_event = 0;
2440
2441 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2442
2443 ev = inb_p(dev->cur_ioport->io1.minimum);
2444 if (dev->cur_ioport->io2.minimum)
2445 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2446 else
2447 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2448 dev->control->evport_offset);
2449
2450 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2451 ev, data_mask, dev->cur_ioport->io1.minimum,
2452 dev->control->evport_offset);
2453
2454 if (ev == 0x00 || ev == 0xff)
2455 return IRQ_HANDLED;
2456
2457 for (i = 0; dev->control->event_types[i].mask; i++) {
2458
2459 if ((data_mask & dev->control->event_types[i].data) !=
2460 dev->control->event_types[i].data)
2461 continue;
2462
2463 if (!(mask & dev->control->event_types[i].mask))
2464 continue;
2465
2466 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2467 if (ev == dev->control->event_types[i].events[j].data) {
2468 device_event =
2469 dev->control->
2470 event_types[i].events[j].event;
2471 goto found;
2472 }
2473 }
2474 }
2475 /* Still not able to decode the event try to pass
2476 * it over to the minidriver
2477 */
2478 if (dev->control->handle_irq &&
2479 dev->control->handle_irq(data_mask, ev) == 0)
2480 return IRQ_HANDLED;
2481
2482 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2483 ev, data_mask, dev->cur_ioport->io1.minimum,
2484 dev->control->evport_offset);
2485 return IRQ_HANDLED;
2486
2487 found:
2488 sony_laptop_report_input_event(device_event);
2489 acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2490 sonypi_compat_report_event(device_event);
2491
2492 return IRQ_HANDLED;
2493 }
2494
2495 /*****************
2496 *
2497 * ACPI driver
2498 *
2499 *****************/
2500 static int sony_pic_remove(struct acpi_device *device, int type)
2501 {
2502 struct sony_pic_ioport *io, *tmp_io;
2503 struct sony_pic_irq *irq, *tmp_irq;
2504
2505 if (sony_pic_disable(device)) {
2506 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2507 return -ENXIO;
2508 }
2509
2510 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2511 release_region(spic_dev.cur_ioport->io1.minimum,
2512 spic_dev.cur_ioport->io1.address_length);
2513 if (spic_dev.cur_ioport->io2.minimum)
2514 release_region(spic_dev.cur_ioport->io2.minimum,
2515 spic_dev.cur_ioport->io2.address_length);
2516
2517 sonypi_compat_exit();
2518
2519 sony_laptop_remove_input();
2520
2521 /* pf attrs */
2522 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2523 sony_pf_remove();
2524
2525 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2526 list_del(&io->list);
2527 kfree(io);
2528 }
2529 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2530 list_del(&irq->list);
2531 kfree(irq);
2532 }
2533 spic_dev.cur_ioport = NULL;
2534 spic_dev.cur_irq = NULL;
2535
2536 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2537 return 0;
2538 }
2539
2540 static int sony_pic_add(struct acpi_device *device)
2541 {
2542 int result;
2543 struct sony_pic_ioport *io, *tmp_io;
2544 struct sony_pic_irq *irq, *tmp_irq;
2545
2546 printk(KERN_INFO DRV_PFX "%s v%s.\n",
2547 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2548
2549 spic_dev.acpi_dev = device;
2550 strcpy(acpi_device_class(device), "sony/hotkey");
2551 sony_pic_detect_device_type(&spic_dev);
2552 mutex_init(&spic_dev.lock);
2553
2554 /* read _PRS resources */
2555 result = sony_pic_possible_resources(device);
2556 if (result) {
2557 printk(KERN_ERR DRV_PFX
2558 "Unabe to read possible resources.\n");
2559 goto err_free_resources;
2560 }
2561
2562 /* setup input devices and helper fifo */
2563 result = sony_laptop_setup_input(device);
2564 if (result) {
2565 printk(KERN_ERR DRV_PFX
2566 "Unabe to create input devices.\n");
2567 goto err_free_resources;
2568 }
2569
2570 if (sonypi_compat_init())
2571 goto err_remove_input;
2572
2573 /* request io port */
2574 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2575 if (request_region(io->io1.minimum, io->io1.address_length,
2576 "Sony Programable I/O Device")) {
2577 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2578 io->io1.minimum, io->io1.maximum,
2579 io->io1.address_length);
2580 /* Type 1 have 2 ioports */
2581 if (io->io2.minimum) {
2582 if (request_region(io->io2.minimum,
2583 io->io2.address_length,
2584 "Sony Programable I/O Device")) {
2585 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2586 io->io2.minimum, io->io2.maximum,
2587 io->io2.address_length);
2588 spic_dev.cur_ioport = io;
2589 break;
2590 }
2591 else {
2592 dprintk("Unable to get I/O port2: "
2593 "0x%.4x (0x%.4x) + 0x%.2x\n",
2594 io->io2.minimum, io->io2.maximum,
2595 io->io2.address_length);
2596 release_region(io->io1.minimum,
2597 io->io1.address_length);
2598 }
2599 }
2600 else {
2601 spic_dev.cur_ioport = io;
2602 break;
2603 }
2604 }
2605 }
2606 if (!spic_dev.cur_ioport) {
2607 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2608 result = -ENODEV;
2609 goto err_remove_compat;
2610 }
2611
2612 /* request IRQ */
2613 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2614 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2615 IRQF_SHARED, "sony-laptop", &spic_dev)) {
2616 dprintk("IRQ: %d - triggering: %d - "
2617 "polarity: %d - shr: %d\n",
2618 irq->irq.interrupts[0],
2619 irq->irq.triggering,
2620 irq->irq.polarity,
2621 irq->irq.sharable);
2622 spic_dev.cur_irq = irq;
2623 break;
2624 }
2625 }
2626 if (!spic_dev.cur_irq) {
2627 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2628 result = -ENODEV;
2629 goto err_release_region;
2630 }
2631
2632 /* set resource status _SRS */
2633 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2634 if (result) {
2635 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2636 goto err_free_irq;
2637 }
2638
2639 spic_dev.bluetooth_power = -1;
2640 /* create device attributes */
2641 result = sony_pf_add();
2642 if (result)
2643 goto err_disable_device;
2644
2645 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2646 if (result)
2647 goto err_remove_pf;
2648
2649 return 0;
2650
2651 err_remove_pf:
2652 sony_pf_remove();
2653
2654 err_disable_device:
2655 sony_pic_disable(device);
2656
2657 err_free_irq:
2658 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2659
2660 err_release_region:
2661 release_region(spic_dev.cur_ioport->io1.minimum,
2662 spic_dev.cur_ioport->io1.address_length);
2663 if (spic_dev.cur_ioport->io2.minimum)
2664 release_region(spic_dev.cur_ioport->io2.minimum,
2665 spic_dev.cur_ioport->io2.address_length);
2666
2667 err_remove_compat:
2668 sonypi_compat_exit();
2669
2670 err_remove_input:
2671 sony_laptop_remove_input();
2672
2673 err_free_resources:
2674 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2675 list_del(&io->list);
2676 kfree(io);
2677 }
2678 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2679 list_del(&irq->list);
2680 kfree(irq);
2681 }
2682 spic_dev.cur_ioport = NULL;
2683 spic_dev.cur_irq = NULL;
2684
2685 return result;
2686 }
2687
2688 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2689 {
2690 if (sony_pic_disable(device))
2691 return -ENXIO;
2692 return 0;
2693 }
2694
2695 static int sony_pic_resume(struct acpi_device *device)
2696 {
2697 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2698 return 0;
2699 }
2700
2701 static const struct acpi_device_id sony_pic_device_ids[] = {
2702 {SONY_PIC_HID, 0},
2703 {"", 0},
2704 };
2705
2706 static struct acpi_driver sony_pic_driver = {
2707 .name = SONY_PIC_DRIVER_NAME,
2708 .class = SONY_PIC_CLASS,
2709 .ids = sony_pic_device_ids,
2710 .owner = THIS_MODULE,
2711 .ops = {
2712 .add = sony_pic_add,
2713 .remove = sony_pic_remove,
2714 .suspend = sony_pic_suspend,
2715 .resume = sony_pic_resume,
2716 },
2717 };
2718
2719 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2720 {
2721 .ident = "Sony Vaio",
2722 .matches = {
2723 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2724 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2725 },
2726 },
2727 {
2728 .ident = "Sony Vaio",
2729 .matches = {
2730 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2731 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2732 },
2733 },
2734 { }
2735 };
2736
2737 static int __init sony_laptop_init(void)
2738 {
2739 int result;
2740
2741 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2742 result = acpi_bus_register_driver(&sony_pic_driver);
2743 if (result) {
2744 printk(KERN_ERR DRV_PFX
2745 "Unable to register SPIC driver.");
2746 goto out;
2747 }
2748 }
2749
2750 result = acpi_bus_register_driver(&sony_nc_driver);
2751 if (result) {
2752 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2753 goto out_unregister_pic;
2754 }
2755
2756 return 0;
2757
2758 out_unregister_pic:
2759 if (!no_spic)
2760 acpi_bus_unregister_driver(&sony_pic_driver);
2761 out:
2762 return result;
2763 }
2764
2765 static void __exit sony_laptop_exit(void)
2766 {
2767 acpi_bus_unregister_driver(&sony_nc_driver);
2768 if (!no_spic)
2769 acpi_bus_unregister_driver(&sony_pic_driver);
2770 }
2771
2772 module_init(sony_laptop_init);
2773 module_exit(sony_laptop_exit);
WandBoard kernel