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sony-laptop: brightness regression fix
[linux-2.6/mini2440.git] / drivers / misc / sony-laptop.c
blob2a613d4f3bd659ff55384350963984a9d9fa542d
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/smp_lock.h>
50 #include <linux/types.h>
51 #include <linux/backlight.h>
52 #include <linux/platform_device.h>
53 #include <linux/err.h>
54 #include <linux/dmi.h>
55 #include <linux/pci.h>
56 #include <linux/interrupt.h>
57 #include <linux/delay.h>
58 #include <linux/input.h>
59 #include <linux/kfifo.h>
60 #include <linux/workqueue.h>
61 #include <linux/acpi.h>
62 #include <acpi/acpi_drivers.h>
63 #include <acpi/acpi_bus.h>
64 #include <asm/uaccess.h>
65 #include <linux/sonypi.h>
66 #include <linux/sony-laptop.h>
67 #ifdef CONFIG_SONYPI_COMPAT
68 #include <linux/poll.h>
69 #include <linux/miscdevice.h>
70 #endif
71
72 #define DRV_PFX "sony-laptop: "
73 #define dprintk(msg...) do { \
74 if (debug) printk(KERN_WARNING DRV_PFX msg); \
75 } while (0)
76
77 #define SONY_LAPTOP_DRIVER_VERSION "0.6"
78
79 #define SONY_NC_CLASS "sony-nc"
80 #define SONY_NC_HID "SNY5001"
81 #define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
82
83 #define SONY_PIC_CLASS "sony-pic"
84 #define SONY_PIC_HID "SNY6001"
85 #define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
86
87 MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
88 MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
89 MODULE_LICENSE("GPL");
90 MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
91
92 static int debug;
93 module_param(debug, int, 0);
94 MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
95 "the development of this driver");
96
97 static int no_spic; /* = 0 */
98 module_param(no_spic, int, 0444);
99 MODULE_PARM_DESC(no_spic,
100 "set this if you don't want to enable the SPIC device");
101
102 static int compat; /* = 0 */
103 module_param(compat, int, 0444);
104 MODULE_PARM_DESC(compat,
105 "set this if you want to enable backward compatibility mode");
106
107 static unsigned long mask = 0xffffffff;
108 module_param(mask, ulong, 0644);
109 MODULE_PARM_DESC(mask,
110 "set this to the mask of event you want to enable (see doc)");
111
112 static int camera; /* = 0 */
113 module_param(camera, int, 0444);
114 MODULE_PARM_DESC(camera,
115 "set this to 1 to enable Motion Eye camera controls "
116 "(only use it if you have a C1VE or C1VN model)");
117
118 #ifdef CONFIG_SONYPI_COMPAT
119 static int minor = -1;
120 module_param(minor, int, 0);
121 MODULE_PARM_DESC(minor,
122 "minor number of the misc device for the SPIC compatibility code, "
123 "default is -1 (automatic)");
124 #endif
125
126 /*********** Input Devices ***********/
127
128 #define SONY_LAPTOP_BUF_SIZE 128
129 struct sony_laptop_input_s {
130 atomic_t users;
131 struct input_dev *jog_dev;
132 struct input_dev *key_dev;
133 struct kfifo *fifo;
134 spinlock_t fifo_lock;
135 struct workqueue_struct *wq;
136 };
137 static struct sony_laptop_input_s sony_laptop_input = {
138 .users = ATOMIC_INIT(0),
139 };
140
141 struct sony_laptop_keypress {
142 struct input_dev *dev;
143 int key;
144 };
145
146 /* Correspondance table between sonypi events
147 * and input layer indexes in the keymap
148 */
149 static int sony_laptop_input_index[] = {
150 -1, /* 0 no event */
151 -1, /* 1 SONYPI_EVENT_JOGDIAL_DOWN */
152 -1, /* 2 SONYPI_EVENT_JOGDIAL_UP */
153 -1, /* 3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
154 -1, /* 4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
155 -1, /* 5 SONYPI_EVENT_JOGDIAL_PRESSED */
156 -1, /* 6 SONYPI_EVENT_JOGDIAL_RELEASED */
157 0, /* 7 SONYPI_EVENT_CAPTURE_PRESSED */
158 1, /* 8 SONYPI_EVENT_CAPTURE_RELEASED */
159 2, /* 9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
160 3, /* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
161 4, /* 11 SONYPI_EVENT_FNKEY_ESC */
162 5, /* 12 SONYPI_EVENT_FNKEY_F1 */
163 6, /* 13 SONYPI_EVENT_FNKEY_F2 */
164 7, /* 14 SONYPI_EVENT_FNKEY_F3 */
165 8, /* 15 SONYPI_EVENT_FNKEY_F4 */
166 9, /* 16 SONYPI_EVENT_FNKEY_F5 */
167 10, /* 17 SONYPI_EVENT_FNKEY_F6 */
168 11, /* 18 SONYPI_EVENT_FNKEY_F7 */
169 12, /* 19 SONYPI_EVENT_FNKEY_F8 */
170 13, /* 20 SONYPI_EVENT_FNKEY_F9 */
171 14, /* 21 SONYPI_EVENT_FNKEY_F10 */
172 15, /* 22 SONYPI_EVENT_FNKEY_F11 */
173 16, /* 23 SONYPI_EVENT_FNKEY_F12 */
174 17, /* 24 SONYPI_EVENT_FNKEY_1 */
175 18, /* 25 SONYPI_EVENT_FNKEY_2 */
176 19, /* 26 SONYPI_EVENT_FNKEY_D */
177 20, /* 27 SONYPI_EVENT_FNKEY_E */
178 21, /* 28 SONYPI_EVENT_FNKEY_F */
179 22, /* 29 SONYPI_EVENT_FNKEY_S */
180 23, /* 30 SONYPI_EVENT_FNKEY_B */
181 24, /* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
182 25, /* 32 SONYPI_EVENT_PKEY_P1 */
183 26, /* 33 SONYPI_EVENT_PKEY_P2 */
184 27, /* 34 SONYPI_EVENT_PKEY_P3 */
185 28, /* 35 SONYPI_EVENT_BACK_PRESSED */
186 -1, /* 36 SONYPI_EVENT_LID_CLOSED */
187 -1, /* 37 SONYPI_EVENT_LID_OPENED */
188 29, /* 38 SONYPI_EVENT_BLUETOOTH_ON */
189 30, /* 39 SONYPI_EVENT_BLUETOOTH_OFF */
190 31, /* 40 SONYPI_EVENT_HELP_PRESSED */
191 32, /* 41 SONYPI_EVENT_FNKEY_ONLY */
192 33, /* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
193 34, /* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
194 35, /* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
195 36, /* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
196 37, /* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
197 38, /* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
198 39, /* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
199 40, /* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
200 41, /* 50 SONYPI_EVENT_ZOOM_PRESSED */
201 42, /* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
202 43, /* 52 SONYPI_EVENT_MEYE_FACE */
203 44, /* 53 SONYPI_EVENT_MEYE_OPPOSITE */
204 45, /* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
205 46, /* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
206 -1, /* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
207 -1, /* 57 SONYPI_EVENT_BATTERY_INSERT */
208 -1, /* 58 SONYPI_EVENT_BATTERY_REMOVE */
209 -1, /* 59 SONYPI_EVENT_FNKEY_RELEASED */
210 47, /* 60 SONYPI_EVENT_WIRELESS_ON */
211 48, /* 61 SONYPI_EVENT_WIRELESS_OFF */
212 49, /* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
213 50, /* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
214 };
215
216 static int sony_laptop_input_keycode_map[] = {
217 KEY_CAMERA, /* 0 SONYPI_EVENT_CAPTURE_PRESSED */
218 KEY_RESERVED, /* 1 SONYPI_EVENT_CAPTURE_RELEASED */
219 KEY_RESERVED, /* 2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
220 KEY_RESERVED, /* 3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
221 KEY_FN_ESC, /* 4 SONYPI_EVENT_FNKEY_ESC */
222 KEY_FN_F1, /* 5 SONYPI_EVENT_FNKEY_F1 */
223 KEY_FN_F2, /* 6 SONYPI_EVENT_FNKEY_F2 */
224 KEY_FN_F3, /* 7 SONYPI_EVENT_FNKEY_F3 */
225 KEY_FN_F4, /* 8 SONYPI_EVENT_FNKEY_F4 */
226 KEY_FN_F5, /* 9 SONYPI_EVENT_FNKEY_F5 */
227 KEY_FN_F6, /* 10 SONYPI_EVENT_FNKEY_F6 */
228 KEY_FN_F7, /* 11 SONYPI_EVENT_FNKEY_F7 */
229 KEY_FN_F8, /* 12 SONYPI_EVENT_FNKEY_F8 */
230 KEY_FN_F9, /* 13 SONYPI_EVENT_FNKEY_F9 */
231 KEY_FN_F10, /* 14 SONYPI_EVENT_FNKEY_F10 */
232 KEY_FN_F11, /* 15 SONYPI_EVENT_FNKEY_F11 */
233 KEY_FN_F12, /* 16 SONYPI_EVENT_FNKEY_F12 */
234 KEY_FN_F1, /* 17 SONYPI_EVENT_FNKEY_1 */
235 KEY_FN_F2, /* 18 SONYPI_EVENT_FNKEY_2 */
236 KEY_FN_D, /* 19 SONYPI_EVENT_FNKEY_D */
237 KEY_FN_E, /* 20 SONYPI_EVENT_FNKEY_E */
238 KEY_FN_F, /* 21 SONYPI_EVENT_FNKEY_F */
239 KEY_FN_S, /* 22 SONYPI_EVENT_FNKEY_S */
240 KEY_FN_B, /* 23 SONYPI_EVENT_FNKEY_B */
241 KEY_BLUETOOTH, /* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
242 KEY_PROG1, /* 25 SONYPI_EVENT_PKEY_P1 */
243 KEY_PROG2, /* 26 SONYPI_EVENT_PKEY_P2 */
244 KEY_PROG3, /* 27 SONYPI_EVENT_PKEY_P3 */
245 KEY_BACK, /* 28 SONYPI_EVENT_BACK_PRESSED */
246 KEY_BLUETOOTH, /* 29 SONYPI_EVENT_BLUETOOTH_ON */
247 KEY_BLUETOOTH, /* 30 SONYPI_EVENT_BLUETOOTH_OFF */
248 KEY_HELP, /* 31 SONYPI_EVENT_HELP_PRESSED */
249 KEY_FN, /* 32 SONYPI_EVENT_FNKEY_ONLY */
250 KEY_RESERVED, /* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
251 KEY_RESERVED, /* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
252 KEY_RESERVED, /* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
253 KEY_RESERVED, /* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
254 KEY_RESERVED, /* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
255 KEY_RESERVED, /* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
256 KEY_RESERVED, /* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
257 KEY_RESERVED, /* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
258 KEY_ZOOM, /* 41 SONYPI_EVENT_ZOOM_PRESSED */
259 BTN_THUMB, /* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
260 KEY_RESERVED, /* 43 SONYPI_EVENT_MEYE_FACE */
261 KEY_RESERVED, /* 44 SONYPI_EVENT_MEYE_OPPOSITE */
262 KEY_RESERVED, /* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
263 KEY_RESERVED, /* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
264 KEY_WLAN, /* 47 SONYPI_EVENT_WIRELESS_ON */
265 KEY_WLAN, /* 48 SONYPI_EVENT_WIRELESS_OFF */
266 KEY_ZOOMIN, /* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
267 KEY_ZOOMOUT /* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
268 };
269
270 /* release buttons after a short delay if pressed */
271 static void do_sony_laptop_release_key(struct work_struct *work)
272 {
273 struct sony_laptop_keypress kp;
274
275 while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
276 sizeof(kp)) == sizeof(kp)) {
277 msleep(10);
278 input_report_key(kp.dev, kp.key, 0);
279 input_sync(kp.dev);
280 }
281 }
282 static DECLARE_WORK(sony_laptop_release_key_work,
283 do_sony_laptop_release_key);
284
285 /* forward event to the input subsystem */
286 static void sony_laptop_report_input_event(u8 event)
287 {
288 struct input_dev *jog_dev = sony_laptop_input.jog_dev;
289 struct input_dev *key_dev = sony_laptop_input.key_dev;
290 struct sony_laptop_keypress kp = { NULL };
291
292 if (event == SONYPI_EVENT_FNKEY_RELEASED) {
293 /* Nothing, not all VAIOs generate this event */
294 return;
295 }
296
297 /* report events */
298 switch (event) {
299 /* jog_dev events */
300 case SONYPI_EVENT_JOGDIAL_UP:
301 case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
302 input_report_rel(jog_dev, REL_WHEEL, 1);
303 input_sync(jog_dev);
304 return;
305
306 case SONYPI_EVENT_JOGDIAL_DOWN:
307 case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
308 input_report_rel(jog_dev, REL_WHEEL, -1);
309 input_sync(jog_dev);
310 return;
311
312 /* key_dev events */
313 case SONYPI_EVENT_JOGDIAL_PRESSED:
314 kp.key = BTN_MIDDLE;
315 kp.dev = jog_dev;
316 break;
317
318 default:
319 if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
320 dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
321 break;
322 }
323 if (sony_laptop_input_index[event] != -1) {
324 kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
325 if (kp.key != KEY_UNKNOWN)
326 kp.dev = key_dev;
327 }
328 break;
329 }
330
331 if (kp.dev) {
332 input_report_key(kp.dev, kp.key, 1);
333 /* we emit the scancode so we can always remap the key */
334 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
335 input_sync(kp.dev);
336 kfifo_put(sony_laptop_input.fifo,
337 (unsigned char *)&kp, sizeof(kp));
338
339 if (!work_pending(&sony_laptop_release_key_work))
340 queue_work(sony_laptop_input.wq,
341 &sony_laptop_release_key_work);
342 } else
343 dprintk("unknown input event %.2x\n", event);
344 }
345
346 static int sony_laptop_setup_input(struct acpi_device *acpi_device)
347 {
348 struct input_dev *jog_dev;
349 struct input_dev *key_dev;
350 int i;
351 int error;
352
353 /* don't run again if already initialized */
354 if (atomic_add_return(1, &sony_laptop_input.users) > 1)
355 return 0;
356
357 /* kfifo */
358 spin_lock_init(&sony_laptop_input.fifo_lock);
359 sony_laptop_input.fifo =
360 kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
361 &sony_laptop_input.fifo_lock);
362 if (IS_ERR(sony_laptop_input.fifo)) {
363 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
364 error = PTR_ERR(sony_laptop_input.fifo);
365 goto err_dec_users;
366 }
367
368 /* init workqueue */
369 sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
370 if (!sony_laptop_input.wq) {
371 printk(KERN_ERR DRV_PFX
372 "Unabe to create workqueue.\n");
373 error = -ENXIO;
374 goto err_free_kfifo;
375 }
376
377 /* input keys */
378 key_dev = input_allocate_device();
379 if (!key_dev) {
380 error = -ENOMEM;
381 goto err_destroy_wq;
382 }
383
384 key_dev->name = "Sony Vaio Keys";
385 key_dev->id.bustype = BUS_ISA;
386 key_dev->id.vendor = PCI_VENDOR_ID_SONY;
387 key_dev->dev.parent = &acpi_device->dev;
388
389 /* Initialize the Input Drivers: special keys */
390 set_bit(EV_KEY, key_dev->evbit);
391 set_bit(EV_MSC, key_dev->evbit);
392 set_bit(MSC_SCAN, key_dev->mscbit);
393 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
394 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
395 key_dev->keycode = &sony_laptop_input_keycode_map;
396 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
397 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
398 set_bit(sony_laptop_input_keycode_map[i],
399 key_dev->keybit);
400 }
401 }
402
403 error = input_register_device(key_dev);
404 if (error)
405 goto err_free_keydev;
406
407 sony_laptop_input.key_dev = key_dev;
408
409 /* jogdial */
410 jog_dev = input_allocate_device();
411 if (!jog_dev) {
412 error = -ENOMEM;
413 goto err_unregister_keydev;
414 }
415
416 jog_dev->name = "Sony Vaio Jogdial";
417 jog_dev->id.bustype = BUS_ISA;
418 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
419 key_dev->dev.parent = &acpi_device->dev;
420
421 jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
422 jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
423 jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
424
425 error = input_register_device(jog_dev);
426 if (error)
427 goto err_free_jogdev;
428
429 sony_laptop_input.jog_dev = jog_dev;
430
431 return 0;
432
433 err_free_jogdev:
434 input_free_device(jog_dev);
435
436 err_unregister_keydev:
437 input_unregister_device(key_dev);
438 /* to avoid kref underflow below at input_free_device */
439 key_dev = NULL;
440
441 err_free_keydev:
442 input_free_device(key_dev);
443
444 err_destroy_wq:
445 destroy_workqueue(sony_laptop_input.wq);
446
447 err_free_kfifo:
448 kfifo_free(sony_laptop_input.fifo);
449
450 err_dec_users:
451 atomic_dec(&sony_laptop_input.users);
452 return error;
453 }
454
455 static void sony_laptop_remove_input(void)
456 {
457 /* cleanup only after the last user has gone */
458 if (!atomic_dec_and_test(&sony_laptop_input.users))
459 return;
460
461 /* flush workqueue first */
462 flush_workqueue(sony_laptop_input.wq);
463
464 /* destroy input devs */
465 input_unregister_device(sony_laptop_input.key_dev);
466 sony_laptop_input.key_dev = NULL;
467
468 if (sony_laptop_input.jog_dev) {
469 input_unregister_device(sony_laptop_input.jog_dev);
470 sony_laptop_input.jog_dev = NULL;
471 }
472
473 destroy_workqueue(sony_laptop_input.wq);
474 kfifo_free(sony_laptop_input.fifo);
475 }
476
477 /*********** Platform Device ***********/
478
479 static atomic_t sony_pf_users = ATOMIC_INIT(0);
480 static struct platform_driver sony_pf_driver = {
481 .driver = {
482 .name = "sony-laptop",
483 .owner = THIS_MODULE,
484 }
485 };
486 static struct platform_device *sony_pf_device;
487
488 static int sony_pf_add(void)
489 {
490 int ret = 0;
491
492 /* don't run again if already initialized */
493 if (atomic_add_return(1, &sony_pf_users) > 1)
494 return 0;
495
496 ret = platform_driver_register(&sony_pf_driver);
497 if (ret)
498 goto out;
499
500 sony_pf_device = platform_device_alloc("sony-laptop", -1);
501 if (!sony_pf_device) {
502 ret = -ENOMEM;
503 goto out_platform_registered;
504 }
505
506 ret = platform_device_add(sony_pf_device);
507 if (ret)
508 goto out_platform_alloced;
509
510 return 0;
511
512 out_platform_alloced:
513 platform_device_put(sony_pf_device);
514 sony_pf_device = NULL;
515 out_platform_registered:
516 platform_driver_unregister(&sony_pf_driver);
517 out:
518 atomic_dec(&sony_pf_users);
519 return ret;
520 }
521
522 static void sony_pf_remove(void)
523 {
524 /* deregister only after the last user has gone */
525 if (!atomic_dec_and_test(&sony_pf_users))
526 return;
527
528 platform_device_del(sony_pf_device);
529 platform_device_put(sony_pf_device);
530 platform_driver_unregister(&sony_pf_driver);
531 }
532
533 /*********** SNC (SNY5001) Device ***********/
534
535 /* the device uses 1-based values, while the backlight subsystem uses
536 0-based values */
537 #define SONY_MAX_BRIGHTNESS 8
538
539 #define SNC_VALIDATE_IN 0
540 #define SNC_VALIDATE_OUT 1
541
542 static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
543 char *);
544 static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
545 const char *, size_t);
546 static int boolean_validate(const int, const int);
547 static int brightness_default_validate(const int, const int);
548
549 struct sony_nc_value {
550 char *name; /* name of the entry */
551 char **acpiget; /* names of the ACPI get function */
552 char **acpiset; /* names of the ACPI set function */
553 int (*validate)(const int, const int); /* input/output validation */
554 int value; /* current setting */
555 int valid; /* Has ever been set */
556 int debug; /* active only in debug mode ? */
557 struct device_attribute devattr; /* sysfs atribute */
558 };
559
560 #define SNC_HANDLE_NAMES(_name, _values...) \
561 static char *snc_##_name[] = { _values, NULL }
562
563 #define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
564 { \
565 .name = __stringify(_name), \
566 .acpiget = _getters, \
567 .acpiset = _setters, \
568 .validate = _validate, \
569 .debug = _debug, \
570 .devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
571 }
572
573 #define SNC_HANDLE_NULL { .name = NULL }
574
575 SNC_HANDLE_NAMES(fnkey_get, "GHKE");
576
577 SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
578 SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
579
580 SNC_HANDLE_NAMES(cdpower_get, "GCDP");
581 SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
582
583 SNC_HANDLE_NAMES(audiopower_get, "GAZP");
584 SNC_HANDLE_NAMES(audiopower_set, "AZPW");
585
586 SNC_HANDLE_NAMES(lanpower_get, "GLNP");
587 SNC_HANDLE_NAMES(lanpower_set, "LNPW");
588
589 SNC_HANDLE_NAMES(lidstate_get, "GLID");
590
591 SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
592 SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");
593
594 SNC_HANDLE_NAMES(gainbass_get, "GMGB");
595 SNC_HANDLE_NAMES(gainbass_set, "CMGB");
596
597 SNC_HANDLE_NAMES(PID_get, "GPID");
598
599 SNC_HANDLE_NAMES(CTR_get, "GCTR");
600 SNC_HANDLE_NAMES(CTR_set, "SCTR");
601
602 SNC_HANDLE_NAMES(PCR_get, "GPCR");
603 SNC_HANDLE_NAMES(PCR_set, "SPCR");
604
605 SNC_HANDLE_NAMES(CMI_get, "GCMI");
606 SNC_HANDLE_NAMES(CMI_set, "SCMI");
607
608 static struct sony_nc_value sony_nc_values[] = {
609 SNC_HANDLE(brightness_default, snc_brightness_def_get,
610 snc_brightness_def_set, brightness_default_validate, 0),
611 SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
612 SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
613 SNC_HANDLE(audiopower, snc_audiopower_get, snc_audiopower_set,
614 boolean_validate, 0),
615 SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
616 boolean_validate, 1),
617 SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
618 boolean_validate, 0),
619 SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
620 boolean_validate, 0),
621 SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
622 boolean_validate, 0),
623 /* unknown methods */
624 SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
625 SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
626 SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
627 SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
628 SNC_HANDLE_NULL
629 };
630
631 static acpi_handle sony_nc_acpi_handle;
632 static struct acpi_device *sony_nc_acpi_device = NULL;
633
634 /*
635 * acpi_evaluate_object wrappers
636 */
637 static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
638 {
639 struct acpi_buffer output;
640 union acpi_object out_obj;
641 acpi_status status;
642
643 output.length = sizeof(out_obj);
644 output.pointer = &out_obj;
645
646 status = acpi_evaluate_object(handle, name, NULL, &output);
647 if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
648 *result = out_obj.integer.value;
649 return 0;
650 }
651
652 printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
653
654 return -1;
655 }
656
657 static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
658 int *result)
659 {
660 struct acpi_object_list params;
661 union acpi_object in_obj;
662 struct acpi_buffer output;
663 union acpi_object out_obj;
664 acpi_status status;
665
666 params.count = 1;
667 params.pointer = &in_obj;
668 in_obj.type = ACPI_TYPE_INTEGER;
669 in_obj.integer.value = value;
670
671 output.length = sizeof(out_obj);
672 output.pointer = &out_obj;
673
674 status = acpi_evaluate_object(handle, name, &params, &output);
675 if (status == AE_OK) {
676 if (result != NULL) {
677 if (out_obj.type != ACPI_TYPE_INTEGER) {
678 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
679 "return type\n");
680 return -1;
681 }
682 *result = out_obj.integer.value;
683 }
684 return 0;
685 }
686
687 printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
688
689 return -1;
690 }
691
692 /*
693 * sony_nc_values input/output validate functions
694 */
695
696 /* brightness_default_validate:
697 *
698 * manipulate input output values to keep consistency with the
699 * backlight framework for which brightness values are 0-based.
700 */
701 static int brightness_default_validate(const int direction, const int value)
702 {
703 switch (direction) {
704 case SNC_VALIDATE_OUT:
705 return value - 1;
706 case SNC_VALIDATE_IN:
707 if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
708 return value + 1;
709 }
710 return -EINVAL;
711 }
712
713 /* boolean_validate:
714 *
715 * on input validate boolean values 0/1, on output just pass the
716 * received value.
717 */
718 static int boolean_validate(const int direction, const int value)
719 {
720 if (direction == SNC_VALIDATE_IN) {
721 if (value != 0 && value != 1)
722 return -EINVAL;
723 }
724 return value;
725 }
726
727 /*
728 * Sysfs show/store common to all sony_nc_values
729 */
730 static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
731 char *buffer)
732 {
733 int value;
734 struct sony_nc_value *item =
735 container_of(attr, struct sony_nc_value, devattr);
736
737 if (!*item->acpiget)
738 return -EIO;
739
740 if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
741 return -EIO;
742
743 if (item->validate)
744 value = item->validate(SNC_VALIDATE_OUT, value);
745
746 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
747 }
748
749 static ssize_t sony_nc_sysfs_store(struct device *dev,
750 struct device_attribute *attr,
751 const char *buffer, size_t count)
752 {
753 int value;
754 struct sony_nc_value *item =
755 container_of(attr, struct sony_nc_value, devattr);
756
757 if (!item->acpiset)
758 return -EIO;
759
760 if (count > 31)
761 return -EINVAL;
762
763 value = simple_strtoul(buffer, NULL, 10);
764
765 if (item->validate)
766 value = item->validate(SNC_VALIDATE_IN, value);
767
768 if (value < 0)
769 return value;
770
771 if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
772 return -EIO;
773 item->value = value;
774 item->valid = 1;
775 return count;
776 }
777
778
779 /*
780 * Backlight device
781 */
782 static int sony_backlight_update_status(struct backlight_device *bd)
783 {
784 return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
785 bd->props.brightness + 1, NULL);
786 }
787
788 static int sony_backlight_get_brightness(struct backlight_device *bd)
789 {
790 int value;
791
792 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
793 return 0;
794 /* brightness levels are 1-based, while backlight ones are 0-based */
795 return value - 1;
796 }
797
798 static struct backlight_device *sony_backlight_device;
799 static struct backlight_ops sony_backlight_ops = {
800 .update_status = sony_backlight_update_status,
801 .get_brightness = sony_backlight_get_brightness,
802 };
803
804 /*
805 * New SNC-only Vaios event mapping to driver known keys
806 */
807 struct sony_nc_event {
808 u8 data;
809 u8 event;
810 };
811
812 static struct sony_nc_event *sony_nc_events;
813
814 /* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
815 * for Fn keys
816 */
817 static int sony_nc_C_enable(const struct dmi_system_id *id)
818 {
819 int result = 0;
820
821 printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);
822
823 sony_nc_events = id->driver_data;
824
825 if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
826 || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
827 || acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
828 || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
829 || acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
830 || acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
831 printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
832 "functionalities may be missing\n");
833 return 1;
834 }
835 return 0;
836 }
837
838 static struct sony_nc_event sony_C_events[] = {
839 { 0x81, SONYPI_EVENT_FNKEY_F1 },
840 { 0x01, SONYPI_EVENT_FNKEY_RELEASED },
841 { 0x85, SONYPI_EVENT_FNKEY_F5 },
842 { 0x05, SONYPI_EVENT_FNKEY_RELEASED },
843 { 0x86, SONYPI_EVENT_FNKEY_F6 },
844 { 0x06, SONYPI_EVENT_FNKEY_RELEASED },
845 { 0x87, SONYPI_EVENT_FNKEY_F7 },
846 { 0x07, SONYPI_EVENT_FNKEY_RELEASED },
847 { 0x8A, SONYPI_EVENT_FNKEY_F10 },
848 { 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
849 { 0x8C, SONYPI_EVENT_FNKEY_F12 },
850 { 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
851 { 0, 0 },
852 };
853
854 /* SNC-only model map */
855 static const struct dmi_system_id sony_nc_ids[] = {
856 {
857 .ident = "Sony Vaio FE Series",
858 .callback = sony_nc_C_enable,
859 .driver_data = sony_C_events,
860 .matches = {
861 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
862 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
863 },
864 },
865 {
866 .ident = "Sony Vaio FZ Series",
867 .callback = sony_nc_C_enable,
868 .driver_data = sony_C_events,
869 .matches = {
870 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
871 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
872 },
873 },
874 {
875 .ident = "Sony Vaio C Series",
876 .callback = sony_nc_C_enable,
877 .driver_data = sony_C_events,
878 .matches = {
879 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
880 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
881 },
882 },
883 {
884 .ident = "Sony Vaio N Series",
885 .callback = sony_nc_C_enable,
886 .driver_data = sony_C_events,
887 .matches = {
888 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
889 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
890 },
891 },
892 { }
893 };
894
895 /*
896 * ACPI callbacks
897 */
898 static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
899 {
900 struct sony_nc_event *evmap;
901 u32 ev = event;
902 int result;
903
904 if (ev == 0x92) {
905 /* read the key pressed from EC.GECR
906 * A call to SN07 with 0x0202 will do it as well respecting
907 * the current protocol on different OSes
908 *
909 * Note: the path for GECR may be
910 * \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
911 * \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
912 *
913 * TODO: we may want to do the same for the older GHKE -need
914 * dmi list- so this snippet may become one more callback.
915 */
916 if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
917 dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
918 else
919 ev = result & 0xFF;
920 }
921
922 if (sony_nc_events)
923 for (evmap = sony_nc_events; evmap->event; evmap++) {
924 if (evmap->data == ev) {
925 ev = evmap->event;
926 break;
927 }
928 }
929
930 dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
931 sony_laptop_report_input_event(ev);
932 acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
933 }
934
935 static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
936 void *context, void **return_value)
937 {
938 struct acpi_namespace_node *node;
939 union acpi_operand_object *operand;
940
941 node = (struct acpi_namespace_node *)handle;
942 operand = (union acpi_operand_object *)node->object;
943
944 printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
945 (u32) operand->method.param_count);
946
947 return AE_OK;
948 }
949
950 /*
951 * ACPI device
952 */
953 static int sony_nc_resume(struct acpi_device *device)
954 {
955 struct sony_nc_value *item;
956
957 for (item = sony_nc_values; item->name; item++) {
958 int ret;
959
960 if (!item->valid)
961 continue;
962 ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
963 item->value, NULL);
964 if (ret < 0) {
965 printk("%s: %d\n", __func__, ret);
966 break;
967 }
968 }
969
970 /* set the last requested brightness level */
971 if (sony_backlight_device &&
972 !sony_backlight_update_status(sony_backlight_device))
973 printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
974
975 /* re-initialize models with specific requirements */
976 dmi_check_system(sony_nc_ids);
977
978 return 0;
979 }
980
981 static int sony_nc_add(struct acpi_device *device)
982 {
983 acpi_status status;
984 int result = 0;
985 acpi_handle handle;
986 struct sony_nc_value *item;
987
988 printk(KERN_INFO DRV_PFX "%s v%s.\n",
989 SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
990
991 sony_nc_acpi_device = device;
992 strcpy(acpi_device_class(device), "sony/hotkey");
993
994 sony_nc_acpi_handle = device->handle;
995
996 /* read device status */
997 result = acpi_bus_get_status(device);
998 /* bail IFF the above call was successful and the device is not present */
999 if (!result && !device->status.present) {
1000 dprintk("Device not present\n");
1001 result = -ENODEV;
1002 goto outwalk;
1003 }
1004
1005 if (debug) {
1006 status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1007 1, sony_walk_callback, NULL, NULL);
1008 if (ACPI_FAILURE(status)) {
1009 printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1010 result = -ENODEV;
1011 goto outwalk;
1012 }
1013 }
1014
1015 /* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
1016 * should be respected as we already checked for the device presence above */
1017 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
1018 dprintk("Invoking _INI\n");
1019 if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
1020 NULL, NULL)))
1021 dprintk("_INI Method failed\n");
1022 }
1023
1024 /* setup input devices and helper fifo */
1025 result = sony_laptop_setup_input(device);
1026 if (result) {
1027 printk(KERN_ERR DRV_PFX
1028 "Unabe to create input devices.\n");
1029 goto outwalk;
1030 }
1031
1032 status = acpi_install_notify_handler(sony_nc_acpi_handle,
1033 ACPI_DEVICE_NOTIFY,
1034 sony_acpi_notify, NULL);
1035 if (ACPI_FAILURE(status)) {
1036 printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1037 result = -ENODEV;
1038 goto outinput;
1039 }
1040
1041 if (acpi_video_backlight_support()) {
1042 printk(KERN_INFO DRV_PFX "Sony: Brightness ignored, must be "
1043 "controlled by ACPI video driver\n");
1044 } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
1045 &handle))) {
1046 sony_backlight_device = backlight_device_register("sony", NULL,
1047 NULL,
1048 &sony_backlight_ops);
1049
1050 if (IS_ERR(sony_backlight_device)) {
1051 printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1052 sony_backlight_device = NULL;
1053 } else {
1054 sony_backlight_device->props.brightness =
1055 sony_backlight_get_brightness
1056 (sony_backlight_device);
1057 sony_backlight_device->props.max_brightness =
1058 SONY_MAX_BRIGHTNESS - 1;
1059 }
1060
1061 }
1062
1063 /* initialize models with specific requirements */
1064 dmi_check_system(sony_nc_ids);
1065
1066 result = sony_pf_add();
1067 if (result)
1068 goto outbacklight;
1069
1070 /* create sony_pf sysfs attributes related to the SNC device */
1071 for (item = sony_nc_values; item->name; ++item) {
1072
1073 if (!debug && item->debug)
1074 continue;
1075
1076 /* find the available acpiget as described in the DSDT */
1077 for (; item->acpiget && *item->acpiget; ++item->acpiget) {
1078 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1079 *item->acpiget,
1080 &handle))) {
1081 dprintk("Found %s getter: %s\n",
1082 item->name, *item->acpiget);
1083 item->devattr.attr.mode |= S_IRUGO;
1084 break;
1085 }
1086 }
1087
1088 /* find the available acpiset as described in the DSDT */
1089 for (; item->acpiset && *item->acpiset; ++item->acpiset) {
1090 if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
1091 *item->acpiset,
1092 &handle))) {
1093 dprintk("Found %s setter: %s\n",
1094 item->name, *item->acpiset);
1095 item->devattr.attr.mode |= S_IWUSR;
1096 break;
1097 }
1098 }
1099
1100 if (item->devattr.attr.mode != 0) {
1101 result =
1102 device_create_file(&sony_pf_device->dev,
1103 &item->devattr);
1104 if (result)
1105 goto out_sysfs;
1106 }
1107 }
1108
1109 return 0;
1110
1111 out_sysfs:
1112 for (item = sony_nc_values; item->name; ++item) {
1113 device_remove_file(&sony_pf_device->dev, &item->devattr);
1114 }
1115 sony_pf_remove();
1116
1117 outbacklight:
1118 if (sony_backlight_device)
1119 backlight_device_unregister(sony_backlight_device);
1120
1121 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1122 ACPI_DEVICE_NOTIFY,
1123 sony_acpi_notify);
1124 if (ACPI_FAILURE(status))
1125 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1126
1127 outinput:
1128 sony_laptop_remove_input();
1129
1130 outwalk:
1131 return result;
1132 }
1133
1134 static int sony_nc_remove(struct acpi_device *device, int type)
1135 {
1136 acpi_status status;
1137 struct sony_nc_value *item;
1138
1139 if (sony_backlight_device)
1140 backlight_device_unregister(sony_backlight_device);
1141
1142 sony_nc_acpi_device = NULL;
1143
1144 status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1145 ACPI_DEVICE_NOTIFY,
1146 sony_acpi_notify);
1147 if (ACPI_FAILURE(status))
1148 printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1149
1150 for (item = sony_nc_values; item->name; ++item) {
1151 device_remove_file(&sony_pf_device->dev, &item->devattr);
1152 }
1153
1154 sony_pf_remove();
1155 sony_laptop_remove_input();
1156 dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1157
1158 return 0;
1159 }
1160
1161 static const struct acpi_device_id sony_device_ids[] = {
1162 {SONY_NC_HID, 0},
1163 {SONY_PIC_HID, 0},
1164 {"", 0},
1165 };
1166 MODULE_DEVICE_TABLE(acpi, sony_device_ids);
1167
1168 static const struct acpi_device_id sony_nc_device_ids[] = {
1169 {SONY_NC_HID, 0},
1170 {"", 0},
1171 };
1172
1173 static struct acpi_driver sony_nc_driver = {
1174 .name = SONY_NC_DRIVER_NAME,
1175 .class = SONY_NC_CLASS,
1176 .ids = sony_nc_device_ids,
1177 .owner = THIS_MODULE,
1178 .ops = {
1179 .add = sony_nc_add,
1180 .remove = sony_nc_remove,
1181 .resume = sony_nc_resume,
1182 },
1183 };
1184
1185 /*********** SPIC (SNY6001) Device ***********/
1186
1187 #define SONYPI_DEVICE_TYPE1 0x00000001
1188 #define SONYPI_DEVICE_TYPE2 0x00000002
1189 #define SONYPI_DEVICE_TYPE3 0x00000004
1190 #define SONYPI_DEVICE_TYPE4 0x00000008
1191
1192 #define SONYPI_TYPE1_OFFSET 0x04
1193 #define SONYPI_TYPE2_OFFSET 0x12
1194 #define SONYPI_TYPE3_OFFSET 0x12
1195 #define SONYPI_TYPE4_OFFSET 0x12
1196
1197 struct sony_pic_ioport {
1198 struct acpi_resource_io io1;
1199 struct acpi_resource_io io2;
1200 struct list_head list;
1201 };
1202
1203 struct sony_pic_irq {
1204 struct acpi_resource_irq irq;
1205 struct list_head list;
1206 };
1207
1208 struct sonypi_eventtypes {
1209 u8 data;
1210 unsigned long mask;
1211 struct sonypi_event *events;
1212 };
1213
1214 struct device_ctrl {
1215 int model;
1216 int (*handle_irq)(const u8, const u8);
1217 u16 evport_offset;
1218 u8 has_camera;
1219 u8 has_bluetooth;
1220 u8 has_wwan;
1221 struct sonypi_eventtypes *event_types;
1222 };
1223
1224 struct sony_pic_dev {
1225 struct device_ctrl *control;
1226 struct acpi_device *acpi_dev;
1227 struct sony_pic_irq *cur_irq;
1228 struct sony_pic_ioport *cur_ioport;
1229 struct list_head interrupts;
1230 struct list_head ioports;
1231 struct mutex lock;
1232 u8 camera_power;
1233 u8 bluetooth_power;
1234 u8 wwan_power;
1235 };
1236
1237 static struct sony_pic_dev spic_dev = {
1238 .interrupts = LIST_HEAD_INIT(spic_dev.interrupts),
1239 .ioports = LIST_HEAD_INIT(spic_dev.ioports),
1240 };
1241
1242 /* Event masks */
1243 #define SONYPI_JOGGER_MASK 0x00000001
1244 #define SONYPI_CAPTURE_MASK 0x00000002
1245 #define SONYPI_FNKEY_MASK 0x00000004
1246 #define SONYPI_BLUETOOTH_MASK 0x00000008
1247 #define SONYPI_PKEY_MASK 0x00000010
1248 #define SONYPI_BACK_MASK 0x00000020
1249 #define SONYPI_HELP_MASK 0x00000040
1250 #define SONYPI_LID_MASK 0x00000080
1251 #define SONYPI_ZOOM_MASK 0x00000100
1252 #define SONYPI_THUMBPHRASE_MASK 0x00000200
1253 #define SONYPI_MEYE_MASK 0x00000400
1254 #define SONYPI_MEMORYSTICK_MASK 0x00000800
1255 #define SONYPI_BATTERY_MASK 0x00001000
1256 #define SONYPI_WIRELESS_MASK 0x00002000
1257
1258 struct sonypi_event {
1259 u8 data;
1260 u8 event;
1261 };
1262
1263 /* The set of possible button release events */
1264 static struct sonypi_event sonypi_releaseev[] = {
1265 { 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
1266 { 0, 0 }
1267 };
1268
1269 /* The set of possible jogger events */
1270 static struct sonypi_event sonypi_joggerev[] = {
1271 { 0x1f, SONYPI_EVENT_JOGDIAL_UP },
1272 { 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
1273 { 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
1274 { 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
1275 { 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
1276 { 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
1277 { 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
1278 { 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
1279 { 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
1280 { 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
1281 { 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
1282 { 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
1283 { 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
1284 { 0, 0 }
1285 };
1286
1287 /* The set of possible capture button events */
1288 static struct sonypi_event sonypi_captureev[] = {
1289 { 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
1290 { 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
1291 { 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1292 { 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
1293 { 0, 0 }
1294 };
1295
1296 /* The set of possible fnkeys events */
1297 static struct sonypi_event sonypi_fnkeyev[] = {
1298 { 0x10, SONYPI_EVENT_FNKEY_ESC },
1299 { 0x11, SONYPI_EVENT_FNKEY_F1 },
1300 { 0x12, SONYPI_EVENT_FNKEY_F2 },
1301 { 0x13, SONYPI_EVENT_FNKEY_F3 },
1302 { 0x14, SONYPI_EVENT_FNKEY_F4 },
1303 { 0x15, SONYPI_EVENT_FNKEY_F5 },
1304 { 0x16, SONYPI_EVENT_FNKEY_F6 },
1305 { 0x17, SONYPI_EVENT_FNKEY_F7 },
1306 { 0x18, SONYPI_EVENT_FNKEY_F8 },
1307 { 0x19, SONYPI_EVENT_FNKEY_F9 },
1308 { 0x1a, SONYPI_EVENT_FNKEY_F10 },
1309 { 0x1b, SONYPI_EVENT_FNKEY_F11 },
1310 { 0x1c, SONYPI_EVENT_FNKEY_F12 },
1311 { 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
1312 { 0x21, SONYPI_EVENT_FNKEY_1 },
1313 { 0x22, SONYPI_EVENT_FNKEY_2 },
1314 { 0x31, SONYPI_EVENT_FNKEY_D },
1315 { 0x32, SONYPI_EVENT_FNKEY_E },
1316 { 0x33, SONYPI_EVENT_FNKEY_F },
1317 { 0x34, SONYPI_EVENT_FNKEY_S },
1318 { 0x35, SONYPI_EVENT_FNKEY_B },
1319 { 0x36, SONYPI_EVENT_FNKEY_ONLY },
1320 { 0, 0 }
1321 };
1322
1323 /* The set of possible program key events */
1324 static struct sonypi_event sonypi_pkeyev[] = {
1325 { 0x01, SONYPI_EVENT_PKEY_P1 },
1326 { 0x02, SONYPI_EVENT_PKEY_P2 },
1327 { 0x04, SONYPI_EVENT_PKEY_P3 },
1328 { 0, 0 }
1329 };
1330
1331 /* The set of possible bluetooth events */
1332 static struct sonypi_event sonypi_blueev[] = {
1333 { 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
1334 { 0x59, SONYPI_EVENT_BLUETOOTH_ON },
1335 { 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
1336 { 0, 0 }
1337 };
1338
1339 /* The set of possible wireless events */
1340 static struct sonypi_event sonypi_wlessev[] = {
1341 { 0x59, SONYPI_EVENT_WIRELESS_ON },
1342 { 0x5a, SONYPI_EVENT_WIRELESS_OFF },
1343 { 0, 0 }
1344 };
1345
1346 /* The set of possible back button events */
1347 static struct sonypi_event sonypi_backev[] = {
1348 { 0x20, SONYPI_EVENT_BACK_PRESSED },
1349 { 0, 0 }
1350 };
1351
1352 /* The set of possible help button events */
1353 static struct sonypi_event sonypi_helpev[] = {
1354 { 0x3b, SONYPI_EVENT_HELP_PRESSED },
1355 { 0, 0 }
1356 };
1357
1358
1359 /* The set of possible lid events */
1360 static struct sonypi_event sonypi_lidev[] = {
1361 { 0x51, SONYPI_EVENT_LID_CLOSED },
1362 { 0x50, SONYPI_EVENT_LID_OPENED },
1363 { 0, 0 }
1364 };
1365
1366 /* The set of possible zoom events */
1367 static struct sonypi_event sonypi_zoomev[] = {
1368 { 0x39, SONYPI_EVENT_ZOOM_PRESSED },
1369 { 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
1370 { 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1371 { 0, 0 }
1372 };
1373
1374 /* The set of possible thumbphrase events */
1375 static struct sonypi_event sonypi_thumbphraseev[] = {
1376 { 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
1377 { 0, 0 }
1378 };
1379
1380 /* The set of possible motioneye camera events */
1381 static struct sonypi_event sonypi_meyeev[] = {
1382 { 0x00, SONYPI_EVENT_MEYE_FACE },
1383 { 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
1384 { 0, 0 }
1385 };
1386
1387 /* The set of possible memorystick events */
1388 static struct sonypi_event sonypi_memorystickev[] = {
1389 { 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
1390 { 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
1391 { 0, 0 }
1392 };
1393
1394 /* The set of possible battery events */
1395 static struct sonypi_event sonypi_batteryev[] = {
1396 { 0x20, SONYPI_EVENT_BATTERY_INSERT },
1397 { 0x30, SONYPI_EVENT_BATTERY_REMOVE },
1398 { 0, 0 }
1399 };
1400
1401 static struct sonypi_eventtypes type1_events[] = {
1402 { 0, 0xffffffff, sonypi_releaseev },
1403 { 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
1404 { 0x30, SONYPI_LID_MASK, sonypi_lidev },
1405 { 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
1406 { 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
1407 { 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1408 { 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1409 { 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
1410 { 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1411 { 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
1412 { 0 },
1413 };
1414 static struct sonypi_eventtypes type2_events[] = {
1415 { 0, 0xffffffff, sonypi_releaseev },
1416 { 0x38, SONYPI_LID_MASK, sonypi_lidev },
1417 { 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
1418 { 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
1419 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1420 { 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
1421 { 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
1422 { 0x11, SONYPI_BACK_MASK, sonypi_backev },
1423 { 0x21, SONYPI_HELP_MASK, sonypi_helpev },
1424 { 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
1425 { 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
1426 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1427 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1428 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1429 { 0 },
1430 };
1431 static struct sonypi_eventtypes type3_events[] = {
1432 { 0, 0xffffffff, sonypi_releaseev },
1433 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1434 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1435 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1436 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1437 { 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
1438 { 0 },
1439 };
1440 static struct sonypi_eventtypes type4_events[] = {
1441 { 0, 0xffffffff, sonypi_releaseev },
1442 { 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
1443 { 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
1444 { 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
1445 { 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
1446 { 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
1447 { 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
1448 { 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
1449 { 0 },
1450 };
1451
1452 /* low level spic calls */
1453 #define ITERATIONS_LONG 10000
1454 #define ITERATIONS_SHORT 10
1455 #define wait_on_command(command, iterations) { \
1456 unsigned int n = iterations; \
1457 while (--n && (command)) \
1458 udelay(1); \
1459 if (!n) \
1460 dprintk("command failed at %s : %s (line %d)\n", \
1461 __FILE__, __func__, __LINE__); \
1462 }
1463
1464 static u8 sony_pic_call1(u8 dev)
1465 {
1466 u8 v1, v2;
1467
1468 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1469 ITERATIONS_LONG);
1470 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1471 v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
1472 v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1473 dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1474 return v2;
1475 }
1476
1477 static u8 sony_pic_call2(u8 dev, u8 fn)
1478 {
1479 u8 v1;
1480
1481 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1482 ITERATIONS_LONG);
1483 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1484 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1485 ITERATIONS_LONG);
1486 outb(fn, spic_dev.cur_ioport->io1.minimum);
1487 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1488 dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1489 return v1;
1490 }
1491
1492 static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
1493 {
1494 u8 v1;
1495
1496 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1497 outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
1498 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1499 outb(fn, spic_dev.cur_ioport->io1.minimum);
1500 wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
1501 outb(v, spic_dev.cur_ioport->io1.minimum);
1502 v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1503 dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
1504 dev, fn, v, v1);
1505 return v1;
1506 }
1507
1508 /*
1509 * minidrivers for SPIC models
1510 */
1511 static int type4_handle_irq(const u8 data_mask, const u8 ev)
1512 {
1513 /*
1514 * 0x31 could mean we have to take some extra action and wait for
1515 * the next irq for some Type4 models, it will generate a new
1516 * irq and we can read new data from the device:
1517 * - 0x5c and 0x5f requires 0xA0
1518 * - 0x61 requires 0xB3
1519 */
1520 if (data_mask == 0x31) {
1521 if (ev == 0x5c || ev == 0x5f)
1522 sony_pic_call1(0xA0);
1523 else if (ev == 0x61)
1524 sony_pic_call1(0xB3);
1525 return 0;
1526 }
1527 return 1;
1528 }
1529
1530 static struct device_ctrl spic_types[] = {
1531 {
1532 .model = SONYPI_DEVICE_TYPE1,
1533 .handle_irq = NULL,
1534 .evport_offset = SONYPI_TYPE1_OFFSET,
1535 .event_types = type1_events,
1536 },
1537 {
1538 .model = SONYPI_DEVICE_TYPE2,
1539 .handle_irq = NULL,
1540 .evport_offset = SONYPI_TYPE2_OFFSET,
1541 .event_types = type2_events,
1542 },
1543 {
1544 .model = SONYPI_DEVICE_TYPE3,
1545 .handle_irq = NULL,
1546 .evport_offset = SONYPI_TYPE3_OFFSET,
1547 .event_types = type3_events,
1548 },
1549 {
1550 .model = SONYPI_DEVICE_TYPE4,
1551 .handle_irq = type4_handle_irq,
1552 .evport_offset = SONYPI_TYPE4_OFFSET,
1553 .event_types = type4_events,
1554 },
1555 };
1556
1557 static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
1558 {
1559 struct pci_dev *pcidev;
1560
1561 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1562 PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
1563 if (pcidev) {
1564 dev->control = &spic_types[0];
1565 goto out;
1566 }
1567
1568 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1569 PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
1570 if (pcidev) {
1571 dev->control = &spic_types[2];
1572 goto out;
1573 }
1574
1575 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1576 PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
1577 if (pcidev) {
1578 dev->control = &spic_types[3];
1579 goto out;
1580 }
1581
1582 pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
1583 PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
1584 if (pcidev) {
1585 dev->control = &spic_types[3];
1586 goto out;
1587 }
1588
1589 /* default */
1590 dev->control = &spic_types[1];
1591
1592 out:
1593 if (pcidev)
1594 pci_dev_put(pcidev);
1595
1596 printk(KERN_INFO DRV_PFX "detected Type%d model\n",
1597 dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
1598 dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
1599 dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
1600 }
1601
1602 /* camera tests and poweron/poweroff */
1603 #define SONYPI_CAMERA_PICTURE 5
1604 #define SONYPI_CAMERA_CONTROL 0x10
1605
1606 #define SONYPI_CAMERA_BRIGHTNESS 0
1607 #define SONYPI_CAMERA_CONTRAST 1
1608 #define SONYPI_CAMERA_HUE 2
1609 #define SONYPI_CAMERA_COLOR 3
1610 #define SONYPI_CAMERA_SHARPNESS 4
1611
1612 #define SONYPI_CAMERA_EXPOSURE_MASK 0xC
1613 #define SONYPI_CAMERA_WHITE_BALANCE_MASK 0x3
1614 #define SONYPI_CAMERA_PICTURE_MODE_MASK 0x30
1615 #define SONYPI_CAMERA_MUTE_MASK 0x40
1616
1617 /* the rest don't need a loop until not 0xff */
1618 #define SONYPI_CAMERA_AGC 6
1619 #define SONYPI_CAMERA_AGC_MASK 0x30
1620 #define SONYPI_CAMERA_SHUTTER_MASK 0x7
1621
1622 #define SONYPI_CAMERA_SHUTDOWN_REQUEST 7
1623 #define SONYPI_CAMERA_CONTROL 0x10
1624
1625 #define SONYPI_CAMERA_STATUS 7
1626 #define SONYPI_CAMERA_STATUS_READY 0x2
1627 #define SONYPI_CAMERA_STATUS_POSITION 0x4
1628
1629 #define SONYPI_DIRECTION_BACKWARDS 0x4
1630
1631 #define SONYPI_CAMERA_REVISION 8
1632 #define SONYPI_CAMERA_ROMVERSION 9
1633
1634 static int __sony_pic_camera_ready(void)
1635 {
1636 u8 v;
1637
1638 v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
1639 return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
1640 }
1641
1642 static int __sony_pic_camera_off(void)
1643 {
1644 if (!camera) {
1645 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1646 return -ENODEV;
1647 }
1648
1649 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
1650 SONYPI_CAMERA_MUTE_MASK),
1651 ITERATIONS_SHORT);
1652
1653 if (spic_dev.camera_power) {
1654 sony_pic_call2(0x91, 0);
1655 spic_dev.camera_power = 0;
1656 }
1657 return 0;
1658 }
1659
1660 static int __sony_pic_camera_on(void)
1661 {
1662 int i, j, x;
1663
1664 if (!camera) {
1665 printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
1666 return -ENODEV;
1667 }
1668
1669 if (spic_dev.camera_power)
1670 return 0;
1671
1672 for (j = 5; j > 0; j--) {
1673
1674 for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1675 msleep(10);
1676 sony_pic_call1(0x93);
1677
1678 for (i = 400; i > 0; i--) {
1679 if (__sony_pic_camera_ready())
1680 break;
1681 msleep(10);
1682 }
1683 if (i)
1684 break;
1685 }
1686
1687 if (j == 0) {
1688 printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1689 return -ENODEV;
1690 }
1691
1692 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
1693 0x5a),
1694 ITERATIONS_SHORT);
1695
1696 spic_dev.camera_power = 1;
1697 return 0;
1698 }
1699
1700 /* External camera command (exported to the motion eye v4l driver) */
1701 int sony_pic_camera_command(int command, u8 value)
1702 {
1703 if (!camera)
1704 return -EIO;
1705
1706 mutex_lock(&spic_dev.lock);
1707
1708 switch (command) {
1709 case SONY_PIC_COMMAND_SETCAMERA:
1710 if (value)
1711 __sony_pic_camera_on();
1712 else
1713 __sony_pic_camera_off();
1714 break;
1715 case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1716 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
1717 ITERATIONS_SHORT);
1718 break;
1719 case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1720 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
1721 ITERATIONS_SHORT);
1722 break;
1723 case SONY_PIC_COMMAND_SETCAMERAHUE:
1724 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
1725 ITERATIONS_SHORT);
1726 break;
1727 case SONY_PIC_COMMAND_SETCAMERACOLOR:
1728 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
1729 ITERATIONS_SHORT);
1730 break;
1731 case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1732 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
1733 ITERATIONS_SHORT);
1734 break;
1735 case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1736 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
1737 ITERATIONS_SHORT);
1738 break;
1739 case SONY_PIC_COMMAND_SETCAMERAAGC:
1740 wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
1741 ITERATIONS_SHORT);
1742 break;
1743 default:
1744 printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
1745 command);
1746 break;
1747 }
1748 mutex_unlock(&spic_dev.lock);
1749 return 0;
1750 }
1751 EXPORT_SYMBOL(sony_pic_camera_command);
1752
1753 /* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
1754 static void sony_pic_set_wwanpower(u8 state)
1755 {
1756 state = !!state;
1757 mutex_lock(&spic_dev.lock);
1758 if (spic_dev.wwan_power == state) {
1759 mutex_unlock(&spic_dev.lock);
1760 return;
1761 }
1762 sony_pic_call2(0xB0, state);
1763 spic_dev.wwan_power = state;
1764 mutex_unlock(&spic_dev.lock);
1765 }
1766
1767 static ssize_t sony_pic_wwanpower_store(struct device *dev,
1768 struct device_attribute *attr,
1769 const char *buffer, size_t count)
1770 {
1771 unsigned long value;
1772 if (count > 31)
1773 return -EINVAL;
1774
1775 value = simple_strtoul(buffer, NULL, 10);
1776 sony_pic_set_wwanpower(value);
1777
1778 return count;
1779 }
1780
1781 static ssize_t sony_pic_wwanpower_show(struct device *dev,
1782 struct device_attribute *attr, char *buffer)
1783 {
1784 ssize_t count;
1785 mutex_lock(&spic_dev.lock);
1786 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
1787 mutex_unlock(&spic_dev.lock);
1788 return count;
1789 }
1790
1791 /* bluetooth subsystem power state */
1792 static void __sony_pic_set_bluetoothpower(u8 state)
1793 {
1794 state = !!state;
1795 if (spic_dev.bluetooth_power == state)
1796 return;
1797 sony_pic_call2(0x96, state);
1798 sony_pic_call1(0x82);
1799 spic_dev.bluetooth_power = state;
1800 }
1801
1802 static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
1803 struct device_attribute *attr,
1804 const char *buffer, size_t count)
1805 {
1806 unsigned long value;
1807 if (count > 31)
1808 return -EINVAL;
1809
1810 value = simple_strtoul(buffer, NULL, 10);
1811 mutex_lock(&spic_dev.lock);
1812 __sony_pic_set_bluetoothpower(value);
1813 mutex_unlock(&spic_dev.lock);
1814
1815 return count;
1816 }
1817
1818 static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
1819 struct device_attribute *attr, char *buffer)
1820 {
1821 ssize_t count = 0;
1822 mutex_lock(&spic_dev.lock);
1823 count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
1824 mutex_unlock(&spic_dev.lock);
1825 return count;
1826 }
1827
1828 /* fan speed */
1829 /* FAN0 information (reverse engineered from ACPI tables) */
1830 #define SONY_PIC_FAN0_STATUS 0x93
1831 static int sony_pic_set_fanspeed(unsigned long value)
1832 {
1833 return ec_write(SONY_PIC_FAN0_STATUS, value);
1834 }
1835
1836 static int sony_pic_get_fanspeed(u8 *value)
1837 {
1838 return ec_read(SONY_PIC_FAN0_STATUS, value);
1839 }
1840
1841 static ssize_t sony_pic_fanspeed_store(struct device *dev,
1842 struct device_attribute *attr,
1843 const char *buffer, size_t count)
1844 {
1845 unsigned long value;
1846 if (count > 31)
1847 return -EINVAL;
1848
1849 value = simple_strtoul(buffer, NULL, 10);
1850 if (sony_pic_set_fanspeed(value))
1851 return -EIO;
1852
1853 return count;
1854 }
1855
1856 static ssize_t sony_pic_fanspeed_show(struct device *dev,
1857 struct device_attribute *attr, char *buffer)
1858 {
1859 u8 value = 0;
1860 if (sony_pic_get_fanspeed(&value))
1861 return -EIO;
1862
1863 return snprintf(buffer, PAGE_SIZE, "%d\n", value);
1864 }
1865
1866 #define SPIC_ATTR(_name, _mode) \
1867 struct device_attribute spic_attr_##_name = __ATTR(_name, \
1868 _mode, sony_pic_## _name ##_show, \
1869 sony_pic_## _name ##_store)
1870
1871 static SPIC_ATTR(bluetoothpower, 0644);
1872 static SPIC_ATTR(wwanpower, 0644);
1873 static SPIC_ATTR(fanspeed, 0644);
1874
1875 static struct attribute *spic_attributes[] = {
1876 &spic_attr_bluetoothpower.attr,
1877 &spic_attr_wwanpower.attr,
1878 &spic_attr_fanspeed.attr,
1879 NULL
1880 };
1881
1882 static struct attribute_group spic_attribute_group = {
1883 .attrs = spic_attributes
1884 };
1885
1886 /******** SONYPI compatibility **********/
1887 #ifdef CONFIG_SONYPI_COMPAT
1888
1889 /* battery / brightness / temperature addresses */
1890 #define SONYPI_BAT_FLAGS 0x81
1891 #define SONYPI_LCD_LIGHT 0x96
1892 #define SONYPI_BAT1_PCTRM 0xa0
1893 #define SONYPI_BAT1_LEFT 0xa2
1894 #define SONYPI_BAT1_MAXRT 0xa4
1895 #define SONYPI_BAT2_PCTRM 0xa8
1896 #define SONYPI_BAT2_LEFT 0xaa
1897 #define SONYPI_BAT2_MAXRT 0xac
1898 #define SONYPI_BAT1_MAXTK 0xb0
1899 #define SONYPI_BAT1_FULL 0xb2
1900 #define SONYPI_BAT2_MAXTK 0xb8
1901 #define SONYPI_BAT2_FULL 0xba
1902 #define SONYPI_TEMP_STATUS 0xC1
1903
1904 struct sonypi_compat_s {
1905 struct fasync_struct *fifo_async;
1906 struct kfifo *fifo;
1907 spinlock_t fifo_lock;
1908 wait_queue_head_t fifo_proc_list;
1909 atomic_t open_count;
1910 };
1911 static struct sonypi_compat_s sonypi_compat = {
1912 .open_count = ATOMIC_INIT(0),
1913 };
1914
1915 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
1916 {
1917 int retval;
1918
1919 retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
1920 if (retval < 0)
1921 return retval;
1922 return 0;
1923 }
1924
1925 static int sonypi_misc_release(struct inode *inode, struct file *file)
1926 {
1927 atomic_dec(&sonypi_compat.open_count);
1928 return 0;
1929 }
1930
1931 static int sonypi_misc_open(struct inode *inode, struct file *file)
1932 {
1933 /* Flush input queue on first open */
1934 lock_kernel();
1935 if (atomic_inc_return(&sonypi_compat.open_count) == 1)
1936 kfifo_reset(sonypi_compat.fifo);
1937 unlock_kernel();
1938 return 0;
1939 }
1940
1941 static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
1942 size_t count, loff_t *pos)
1943 {
1944 ssize_t ret;
1945 unsigned char c;
1946
1947 if ((kfifo_len(sonypi_compat.fifo) == 0) &&
1948 (file->f_flags & O_NONBLOCK))
1949 return -EAGAIN;
1950
1951 ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
1952 kfifo_len(sonypi_compat.fifo) != 0);
1953 if (ret)
1954 return ret;
1955
1956 while (ret < count &&
1957 (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
1958 if (put_user(c, buf++))
1959 return -EFAULT;
1960 ret++;
1961 }
1962
1963 if (ret > 0) {
1964 struct inode *inode = file->f_path.dentry->d_inode;
1965 inode->i_atime = current_fs_time(inode->i_sb);
1966 }
1967
1968 return ret;
1969 }
1970
1971 static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
1972 {
1973 poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
1974 if (kfifo_len(sonypi_compat.fifo))
1975 return POLLIN | POLLRDNORM;
1976 return 0;
1977 }
1978
1979 static int ec_read16(u8 addr, u16 *value)
1980 {
1981 u8 val_lb, val_hb;
1982 if (ec_read(addr, &val_lb))
1983 return -1;
1984 if (ec_read(addr + 1, &val_hb))
1985 return -1;
1986 *value = val_lb | (val_hb << 8);
1987 return 0;
1988 }
1989
1990 static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
1991 unsigned int cmd, unsigned long arg)
1992 {
1993 int ret = 0;
1994 void __user *argp = (void __user *)arg;
1995 u8 val8;
1996 u16 val16;
1997 int value;
1998
1999 mutex_lock(&spic_dev.lock);
2000 switch (cmd) {
2001 case SONYPI_IOCGBRT:
2002 if (sony_backlight_device == NULL) {
2003 ret = -EIO;
2004 break;
2005 }
2006 if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
2007 ret = -EIO;
2008 break;
2009 }
2010 val8 = ((value & 0xff) - 1) << 5;
2011 if (copy_to_user(argp, &val8, sizeof(val8)))
2012 ret = -EFAULT;
2013 break;
2014 case SONYPI_IOCSBRT:
2015 if (sony_backlight_device == NULL) {
2016 ret = -EIO;
2017 break;
2018 }
2019 if (copy_from_user(&val8, argp, sizeof(val8))) {
2020 ret = -EFAULT;
2021 break;
2022 }
2023 if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
2024 (val8 >> 5) + 1, NULL)) {
2025 ret = -EIO;
2026 break;
2027 }
2028 /* sync the backlight device status */
2029 sony_backlight_device->props.brightness =
2030 sony_backlight_get_brightness(sony_backlight_device);
2031 break;
2032 case SONYPI_IOCGBAT1CAP:
2033 if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
2034 ret = -EIO;
2035 break;
2036 }
2037 if (copy_to_user(argp, &val16, sizeof(val16)))
2038 ret = -EFAULT;
2039 break;
2040 case SONYPI_IOCGBAT1REM:
2041 if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
2042 ret = -EIO;
2043 break;
2044 }
2045 if (copy_to_user(argp, &val16, sizeof(val16)))
2046 ret = -EFAULT;
2047 break;
2048 case SONYPI_IOCGBAT2CAP:
2049 if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
2050 ret = -EIO;
2051 break;
2052 }
2053 if (copy_to_user(argp, &val16, sizeof(val16)))
2054 ret = -EFAULT;
2055 break;
2056 case SONYPI_IOCGBAT2REM:
2057 if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
2058 ret = -EIO;
2059 break;
2060 }
2061 if (copy_to_user(argp, &val16, sizeof(val16)))
2062 ret = -EFAULT;
2063 break;
2064 case SONYPI_IOCGBATFLAGS:
2065 if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
2066 ret = -EIO;
2067 break;
2068 }
2069 val8 &= 0x07;
2070 if (copy_to_user(argp, &val8, sizeof(val8)))
2071 ret = -EFAULT;
2072 break;
2073 case SONYPI_IOCGBLUE:
2074 val8 = spic_dev.bluetooth_power;
2075 if (copy_to_user(argp, &val8, sizeof(val8)))
2076 ret = -EFAULT;
2077 break;
2078 case SONYPI_IOCSBLUE:
2079 if (copy_from_user(&val8, argp, sizeof(val8))) {
2080 ret = -EFAULT;
2081 break;
2082 }
2083 __sony_pic_set_bluetoothpower(val8);
2084 break;
2085 /* FAN Controls */
2086 case SONYPI_IOCGFAN:
2087 if (sony_pic_get_fanspeed(&val8)) {
2088 ret = -EIO;
2089 break;
2090 }
2091 if (copy_to_user(argp, &val8, sizeof(val8)))
2092 ret = -EFAULT;
2093 break;
2094 case SONYPI_IOCSFAN:
2095 if (copy_from_user(&val8, argp, sizeof(val8))) {
2096 ret = -EFAULT;
2097 break;
2098 }
2099 if (sony_pic_set_fanspeed(val8))
2100 ret = -EIO;
2101 break;
2102 /* GET Temperature (useful under APM) */
2103 case SONYPI_IOCGTEMP:
2104 if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
2105 ret = -EIO;
2106 break;
2107 }
2108 if (copy_to_user(argp, &val8, sizeof(val8)))
2109 ret = -EFAULT;
2110 break;
2111 default:
2112 ret = -EINVAL;
2113 }
2114 mutex_unlock(&spic_dev.lock);
2115 return ret;
2116 }
2117
2118 static const struct file_operations sonypi_misc_fops = {
2119 .owner = THIS_MODULE,
2120 .read = sonypi_misc_read,
2121 .poll = sonypi_misc_poll,
2122 .open = sonypi_misc_open,
2123 .release = sonypi_misc_release,
2124 .fasync = sonypi_misc_fasync,
2125 .ioctl = sonypi_misc_ioctl,
2126 };
2127
2128 static struct miscdevice sonypi_misc_device = {
2129 .minor = MISC_DYNAMIC_MINOR,
2130 .name = "sonypi",
2131 .fops = &sonypi_misc_fops,
2132 };
2133
2134 static void sonypi_compat_report_event(u8 event)
2135 {
2136 kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
2137 kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
2138 wake_up_interruptible(&sonypi_compat.fifo_proc_list);
2139 }
2140
2141 static int sonypi_compat_init(void)
2142 {
2143 int error;
2144
2145 spin_lock_init(&sonypi_compat.fifo_lock);
2146 sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
2147 &sonypi_compat.fifo_lock);
2148 if (IS_ERR(sonypi_compat.fifo)) {
2149 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
2150 return PTR_ERR(sonypi_compat.fifo);
2151 }
2152
2153 init_waitqueue_head(&sonypi_compat.fifo_proc_list);
2154
2155 if (minor != -1)
2156 sonypi_misc_device.minor = minor;
2157 error = misc_register(&sonypi_misc_device);
2158 if (error) {
2159 printk(KERN_ERR DRV_PFX "misc_register failed\n");
2160 goto err_free_kfifo;
2161 }
2162 if (minor == -1)
2163 printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2164 sonypi_misc_device.minor);
2165
2166 return 0;
2167
2168 err_free_kfifo:
2169 kfifo_free(sonypi_compat.fifo);
2170 return error;
2171 }
2172
2173 static void sonypi_compat_exit(void)
2174 {
2175 misc_deregister(&sonypi_misc_device);
2176 kfifo_free(sonypi_compat.fifo);
2177 }
2178 #else
2179 static int sonypi_compat_init(void) { return 0; }
2180 static void sonypi_compat_exit(void) { }
2181 static void sonypi_compat_report_event(u8 event) { }
2182 #endif /* CONFIG_SONYPI_COMPAT */
2183
2184 /*
2185 * ACPI callbacks
2186 */
2187 static acpi_status
2188 sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
2189 {
2190 u32 i;
2191 struct sony_pic_dev *dev = (struct sony_pic_dev *)context;
2192
2193 switch (resource->type) {
2194 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2195 {
2196 /* start IO enumeration */
2197 struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
2198 if (!ioport)
2199 return AE_ERROR;
2200
2201 list_add(&ioport->list, &dev->ioports);
2202 return AE_OK;
2203 }
2204
2205 case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2206 /* end IO enumeration */
2207 return AE_OK;
2208
2209 case ACPI_RESOURCE_TYPE_IRQ:
2210 {
2211 struct acpi_resource_irq *p = &resource->data.irq;
2212 struct sony_pic_irq *interrupt = NULL;
2213 if (!p || !p->interrupt_count) {
2214 /*
2215 * IRQ descriptors may have no IRQ# bits set,
2216 * particularly those those w/ _STA disabled
2217 */
2218 dprintk("Blank IRQ resource\n");
2219 return AE_OK;
2220 }
2221 for (i = 0; i < p->interrupt_count; i++) {
2222 if (!p->interrupts[i]) {
2223 printk(KERN_WARNING DRV_PFX
2224 "Invalid IRQ %d\n",
2225 p->interrupts[i]);
2226 continue;
2227 }
2228 interrupt = kzalloc(sizeof(*interrupt),
2229 GFP_KERNEL);
2230 if (!interrupt)
2231 return AE_ERROR;
2232
2233 list_add(&interrupt->list, &dev->interrupts);
2234 interrupt->irq.triggering = p->triggering;
2235 interrupt->irq.polarity = p->polarity;
2236 interrupt->irq.sharable = p->sharable;
2237 interrupt->irq.interrupt_count = 1;
2238 interrupt->irq.interrupts[0] = p->interrupts[i];
2239 }
2240 return AE_OK;
2241 }
2242 case ACPI_RESOURCE_TYPE_IO:
2243 {
2244 struct acpi_resource_io *io = &resource->data.io;
2245 struct sony_pic_ioport *ioport =
2246 list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2247 if (!io) {
2248 dprintk("Blank IO resource\n");
2249 return AE_OK;
2250 }
2251
2252 if (!ioport->io1.minimum) {
2253 memcpy(&ioport->io1, io, sizeof(*io));
2254 dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
2255 ioport->io1.address_length);
2256 }
2257 else if (!ioport->io2.minimum) {
2258 memcpy(&ioport->io2, io, sizeof(*io));
2259 dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
2260 ioport->io2.address_length);
2261 }
2262 else {
2263 printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2264 return AE_ERROR;
2265 }
2266 return AE_OK;
2267 }
2268 default:
2269 dprintk("Resource %d isn't an IRQ nor an IO port\n",
2270 resource->type);
2271
2272 case ACPI_RESOURCE_TYPE_END_TAG:
2273 return AE_OK;
2274 }
2275 return AE_CTRL_TERMINATE;
2276 }
2277
2278 static int sony_pic_possible_resources(struct acpi_device *device)
2279 {
2280 int result = 0;
2281 acpi_status status = AE_OK;
2282
2283 if (!device)
2284 return -EINVAL;
2285
2286 /* get device status */
2287 /* see acpi_pci_link_get_current acpi_pci_link_get_possible */
2288 dprintk("Evaluating _STA\n");
2289 result = acpi_bus_get_status(device);
2290 if (result) {
2291 printk(KERN_WARNING DRV_PFX "Unable to read status\n");
2292 goto end;
2293 }
2294
2295 if (!device->status.enabled)
2296 dprintk("Device disabled\n");
2297 else
2298 dprintk("Device enabled\n");
2299
2300 /*
2301 * Query and parse 'method'
2302 */
2303 dprintk("Evaluating %s\n", METHOD_NAME__PRS);
2304 status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
2305 sony_pic_read_possible_resource, &spic_dev);
2306 if (ACPI_FAILURE(status)) {
2307 printk(KERN_WARNING DRV_PFX
2308 "Failure evaluating %s\n",
2309 METHOD_NAME__PRS);
2310 result = -ENODEV;
2311 }
2312 end:
2313 return result;
2314 }
2315
2316 /*
2317 * Disable the spic device by calling its _DIS method
2318 */
2319 static int sony_pic_disable(struct acpi_device *device)
2320 {
2321 acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
2322 NULL);
2323
2324 if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2325 return -ENXIO;
2326
2327 dprintk("Device disabled\n");
2328 return 0;
2329 }
2330
2331
2332 /*
2333 * Based on drivers/acpi/pci_link.c:acpi_pci_link_set
2334 *
2335 * Call _SRS to set current resources
2336 */
2337 static int sony_pic_enable(struct acpi_device *device,
2338 struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
2339 {
2340 acpi_status status;
2341 int result = 0;
2342 /* Type 1 resource layout is:
2343 * IO
2344 * IO
2345 * IRQNoFlags
2346 * End
2347 *
2348 * Type 2 and 3 resource layout is:
2349 * IO
2350 * IRQNoFlags
2351 * End
2352 */
2353 struct {
2354 struct acpi_resource res1;
2355 struct acpi_resource res2;
2356 struct acpi_resource res3;
2357 struct acpi_resource res4;
2358 } *resource;
2359 struct acpi_buffer buffer = { 0, NULL };
2360
2361 if (!ioport || !irq)
2362 return -EINVAL;
2363
2364 /* init acpi_buffer */
2365 resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
2366 if (!resource)
2367 return -ENOMEM;
2368
2369 buffer.length = sizeof(*resource) + 1;
2370 buffer.pointer = resource;
2371
2372 /* setup Type 1 resources */
2373 if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2374
2375 /* setup io resources */
2376 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2377 resource->res1.length = sizeof(struct acpi_resource);
2378 memcpy(&resource->res1.data.io, &ioport->io1,
2379 sizeof(struct acpi_resource_io));
2380
2381 resource->res2.type = ACPI_RESOURCE_TYPE_IO;
2382 resource->res2.length = sizeof(struct acpi_resource);
2383 memcpy(&resource->res2.data.io, &ioport->io2,
2384 sizeof(struct acpi_resource_io));
2385
2386 /* setup irq resource */
2387 resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
2388 resource->res3.length = sizeof(struct acpi_resource);
2389 memcpy(&resource->res3.data.irq, &irq->irq,
2390 sizeof(struct acpi_resource_irq));
2391 /* we requested a shared irq */
2392 resource->res3.data.irq.sharable = ACPI_SHARED;
2393
2394 resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;
2395
2396 }
2397 /* setup Type 2/3 resources */
2398 else {
2399 /* setup io resource */
2400 resource->res1.type = ACPI_RESOURCE_TYPE_IO;
2401 resource->res1.length = sizeof(struct acpi_resource);
2402 memcpy(&resource->res1.data.io, &ioport->io1,
2403 sizeof(struct acpi_resource_io));
2404
2405 /* setup irq resource */
2406 resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
2407 resource->res2.length = sizeof(struct acpi_resource);
2408 memcpy(&resource->res2.data.irq, &irq->irq,
2409 sizeof(struct acpi_resource_irq));
2410 /* we requested a shared irq */
2411 resource->res2.data.irq.sharable = ACPI_SHARED;
2412
2413 resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
2414 }
2415
2416 /* Attempt to set the resource */
2417 dprintk("Evaluating _SRS\n");
2418 status = acpi_set_current_resources(device->handle, &buffer);
2419
2420 /* check for total failure */
2421 if (ACPI_FAILURE(status)) {
2422 printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2423 result = -ENODEV;
2424 goto end;
2425 }
2426
2427 /* Necessary device initializations calls (from sonypi) */
2428 sony_pic_call1(0x82);
2429 sony_pic_call2(0x81, 0xff);
2430 sony_pic_call1(compat ? 0x92 : 0x82);
2431
2432 end:
2433 kfree(resource);
2434 return result;
2435 }
2436
2437 /*****************
2438 *
2439 * ISR: some event is available
2440 *
2441 *****************/
2442 static irqreturn_t sony_pic_irq(int irq, void *dev_id)
2443 {
2444 int i, j;
2445 u8 ev = 0;
2446 u8 data_mask = 0;
2447 u8 device_event = 0;
2448
2449 struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;
2450
2451 ev = inb_p(dev->cur_ioport->io1.minimum);
2452 if (dev->cur_ioport->io2.minimum)
2453 data_mask = inb_p(dev->cur_ioport->io2.minimum);
2454 else
2455 data_mask = inb_p(dev->cur_ioport->io1.minimum +
2456 dev->control->evport_offset);
2457
2458 dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2459 ev, data_mask, dev->cur_ioport->io1.minimum,
2460 dev->control->evport_offset);
2461
2462 if (ev == 0x00 || ev == 0xff)
2463 return IRQ_HANDLED;
2464
2465 for (i = 0; dev->control->event_types[i].mask; i++) {
2466
2467 if ((data_mask & dev->control->event_types[i].data) !=
2468 dev->control->event_types[i].data)
2469 continue;
2470
2471 if (!(mask & dev->control->event_types[i].mask))
2472 continue;
2473
2474 for (j = 0; dev->control->event_types[i].events[j].event; j++) {
2475 if (ev == dev->control->event_types[i].events[j].data) {
2476 device_event =
2477 dev->control->
2478 event_types[i].events[j].event;
2479 goto found;
2480 }
2481 }
2482 }
2483 /* Still not able to decode the event try to pass
2484 * it over to the minidriver
2485 */
2486 if (dev->control->handle_irq &&
2487 dev->control->handle_irq(data_mask, ev) == 0)
2488 return IRQ_HANDLED;
2489
2490 dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2491 ev, data_mask, dev->cur_ioport->io1.minimum,
2492 dev->control->evport_offset);
2493 return IRQ_HANDLED;
2494
2495 found:
2496 sony_laptop_report_input_event(device_event);
2497 acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2498 sonypi_compat_report_event(device_event);
2499
2500 return IRQ_HANDLED;
2501 }
2502
2503 /*****************
2504 *
2505 * ACPI driver
2506 *
2507 *****************/
2508 static int sony_pic_remove(struct acpi_device *device, int type)
2509 {
2510 struct sony_pic_ioport *io, *tmp_io;
2511 struct sony_pic_irq *irq, *tmp_irq;
2512
2513 if (sony_pic_disable(device)) {
2514 printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
2515 return -ENXIO;
2516 }
2517
2518 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2519 release_region(spic_dev.cur_ioport->io1.minimum,
2520 spic_dev.cur_ioport->io1.address_length);
2521 if (spic_dev.cur_ioport->io2.minimum)
2522 release_region(spic_dev.cur_ioport->io2.minimum,
2523 spic_dev.cur_ioport->io2.address_length);
2524
2525 sonypi_compat_exit();
2526
2527 sony_laptop_remove_input();
2528
2529 /* pf attrs */
2530 sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2531 sony_pf_remove();
2532
2533 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2534 list_del(&io->list);
2535 kfree(io);
2536 }
2537 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2538 list_del(&irq->list);
2539 kfree(irq);
2540 }
2541 spic_dev.cur_ioport = NULL;
2542 spic_dev.cur_irq = NULL;
2543
2544 dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2545 return 0;
2546 }
2547
2548 static int sony_pic_add(struct acpi_device *device)
2549 {
2550 int result;
2551 struct sony_pic_ioport *io, *tmp_io;
2552 struct sony_pic_irq *irq, *tmp_irq;
2553
2554 printk(KERN_INFO DRV_PFX "%s v%s.\n",
2555 SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2556
2557 spic_dev.acpi_dev = device;
2558 strcpy(acpi_device_class(device), "sony/hotkey");
2559 sony_pic_detect_device_type(&spic_dev);
2560 mutex_init(&spic_dev.lock);
2561
2562 /* read _PRS resources */
2563 result = sony_pic_possible_resources(device);
2564 if (result) {
2565 printk(KERN_ERR DRV_PFX
2566 "Unabe to read possible resources.\n");
2567 goto err_free_resources;
2568 }
2569
2570 /* setup input devices and helper fifo */
2571 result = sony_laptop_setup_input(device);
2572 if (result) {
2573 printk(KERN_ERR DRV_PFX
2574 "Unabe to create input devices.\n");
2575 goto err_free_resources;
2576 }
2577
2578 if (sonypi_compat_init())
2579 goto err_remove_input;
2580
2581 /* request io port */
2582 list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
2583 if (request_region(io->io1.minimum, io->io1.address_length,
2584 "Sony Programable I/O Device")) {
2585 dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
2586 io->io1.minimum, io->io1.maximum,
2587 io->io1.address_length);
2588 /* Type 1 have 2 ioports */
2589 if (io->io2.minimum) {
2590 if (request_region(io->io2.minimum,
2591 io->io2.address_length,
2592 "Sony Programable I/O Device")) {
2593 dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
2594 io->io2.minimum, io->io2.maximum,
2595 io->io2.address_length);
2596 spic_dev.cur_ioport = io;
2597 break;
2598 }
2599 else {
2600 dprintk("Unable to get I/O port2: "
2601 "0x%.4x (0x%.4x) + 0x%.2x\n",
2602 io->io2.minimum, io->io2.maximum,
2603 io->io2.address_length);
2604 release_region(io->io1.minimum,
2605 io->io1.address_length);
2606 }
2607 }
2608 else {
2609 spic_dev.cur_ioport = io;
2610 break;
2611 }
2612 }
2613 }
2614 if (!spic_dev.cur_ioport) {
2615 printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
2616 result = -ENODEV;
2617 goto err_remove_compat;
2618 }
2619
2620 /* request IRQ */
2621 list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2622 if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
2623 IRQF_SHARED, "sony-laptop", &spic_dev)) {
2624 dprintk("IRQ: %d - triggering: %d - "
2625 "polarity: %d - shr: %d\n",
2626 irq->irq.interrupts[0],
2627 irq->irq.triggering,
2628 irq->irq.polarity,
2629 irq->irq.sharable);
2630 spic_dev.cur_irq = irq;
2631 break;
2632 }
2633 }
2634 if (!spic_dev.cur_irq) {
2635 printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
2636 result = -ENODEV;
2637 goto err_release_region;
2638 }
2639
2640 /* set resource status _SRS */
2641 result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2642 if (result) {
2643 printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
2644 goto err_free_irq;
2645 }
2646
2647 spic_dev.bluetooth_power = -1;
2648 /* create device attributes */
2649 result = sony_pf_add();
2650 if (result)
2651 goto err_disable_device;
2652
2653 result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
2654 if (result)
2655 goto err_remove_pf;
2656
2657 return 0;
2658
2659 err_remove_pf:
2660 sony_pf_remove();
2661
2662 err_disable_device:
2663 sony_pic_disable(device);
2664
2665 err_free_irq:
2666 free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2667
2668 err_release_region:
2669 release_region(spic_dev.cur_ioport->io1.minimum,
2670 spic_dev.cur_ioport->io1.address_length);
2671 if (spic_dev.cur_ioport->io2.minimum)
2672 release_region(spic_dev.cur_ioport->io2.minimum,
2673 spic_dev.cur_ioport->io2.address_length);
2674
2675 err_remove_compat:
2676 sonypi_compat_exit();
2677
2678 err_remove_input:
2679 sony_laptop_remove_input();
2680
2681 err_free_resources:
2682 list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
2683 list_del(&io->list);
2684 kfree(io);
2685 }
2686 list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
2687 list_del(&irq->list);
2688 kfree(irq);
2689 }
2690 spic_dev.cur_ioport = NULL;
2691 spic_dev.cur_irq = NULL;
2692
2693 return result;
2694 }
2695
2696 static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
2697 {
2698 if (sony_pic_disable(device))
2699 return -ENXIO;
2700 return 0;
2701 }
2702
2703 static int sony_pic_resume(struct acpi_device *device)
2704 {
2705 sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
2706 return 0;
2707 }
2708
2709 static const struct acpi_device_id sony_pic_device_ids[] = {
2710 {SONY_PIC_HID, 0},
2711 {"", 0},
2712 };
2713
2714 static struct acpi_driver sony_pic_driver = {
2715 .name = SONY_PIC_DRIVER_NAME,
2716 .class = SONY_PIC_CLASS,
2717 .ids = sony_pic_device_ids,
2718 .owner = THIS_MODULE,
2719 .ops = {
2720 .add = sony_pic_add,
2721 .remove = sony_pic_remove,
2722 .suspend = sony_pic_suspend,
2723 .resume = sony_pic_resume,
2724 },
2725 };
2726
2727 static struct dmi_system_id __initdata sonypi_dmi_table[] = {
2728 {
2729 .ident = "Sony Vaio",
2730 .matches = {
2731 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2732 DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
2733 },
2734 },
2735 {
2736 .ident = "Sony Vaio",
2737 .matches = {
2738 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
2739 DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
2740 },
2741 },
2742 { }
2743 };
2744
2745 static int __init sony_laptop_init(void)
2746 {
2747 int result;
2748
2749 if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
2750 result = acpi_bus_register_driver(&sony_pic_driver);
2751 if (result) {
2752 printk(KERN_ERR DRV_PFX
2753 "Unable to register SPIC driver.");
2754 goto out;
2755 }
2756 }
2757
2758 result = acpi_bus_register_driver(&sony_nc_driver);
2759 if (result) {
2760 printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
2761 goto out_unregister_pic;
2762 }
2763
2764 return 0;
2765
2766 out_unregister_pic:
2767 if (!no_spic)
2768 acpi_bus_unregister_driver(&sony_pic_driver);
2769 out:
2770 return result;
2771 }
2772
2773 static void __exit sony_laptop_exit(void)
2774 {
2775 acpi_bus_unregister_driver(&sony_nc_driver);
2776 if (!no_spic)
2777 acpi_bus_unregister_driver(&sony_pic_driver);
2778 }
2779
2780 module_init(sony_laptop_init);
2781 module_exit(sony_laptop_exit);
Support for the Chinese Samsung S3C2440 based development boards