sony-laptop.c 71.7 KB
Newer Older
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 8 9
 *
 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
 * which are copyrighted by their respective authors.
 *
10 11 12 13 14 15 16
 * The SNY6001 driver part is based on the sonypi driver which includes
 * material from:
 *
 * Copyright (C) 2001-2005 Stelian Pop <stelian@popies.net>
 *
 * Copyright (C) 2005 Narayanan R S <nars@kadamba.org>
 *
M
Marcin Garski 已提交
17
 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
18 19 20 21 22 23 24 25 26 27 28
 *
 * Copyright (C) 2001 Michael Ashley <m.ashley@unsw.edu.au>
 *
 * Copyright (C) 2001 Junichi Morita <jun1m@mars.dti.ne.jp>
 *
 * Copyright (C) 2000 Takaya Kinjo <t-kinjo@tc4.so-net.ne.jp>
 *
 * Copyright (C) 2000 Andrew Tridgell <tridge@valinux.com>
 *
 * Earlier work by Werner Almesberger, Paul `Rusty' Russell and Paul Mackerras.
 *
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
A
Arnd Bergmann 已提交
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 55 56 57 58 59 60 61
#include <linux/dmi.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/kfifo.h>
#include <linux/workqueue.h>
#include <linux/acpi.h>
62 63 64
#include <acpi/acpi_drivers.h>
#include <acpi/acpi_bus.h>
#include <asm/uaccess.h>
65
#include <linux/sonypi.h>
66
#include <linux/sony-laptop.h>
67
#ifdef CONFIG_SONYPI_COMPAT
68 69 70
#include <linux/poll.h>
#include <linux/miscdevice.h>
#endif
71

72
#define DRV_PFX			"sony-laptop: "
73
#define dprintk(msg...)		do {			\
74
	if (debug) printk(KERN_WARNING DRV_PFX  msg);	\
75 76
} while (0)

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 84
#define SONY_PIC_CLASS		"sony-pic"
#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 93 94

static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
L
Len Brown 已提交
95
		 "the development of this driver");
96

97 98 99 100 101 102 103 104
static int no_spic;		/* = 0 */
module_param(no_spic, int, 0444);
MODULE_PARM_DESC(no_spic,
		 "set this if you don't want to enable the SPIC device");

static int compat;		/* = 0 */
module_param(compat, int, 0444);
MODULE_PARM_DESC(compat,
105
		 "set this if you want to enable backward compatibility mode");
106 107 108 109 110 111

static unsigned long mask = 0xffffffff;
module_param(mask, ulong, 0644);
MODULE_PARM_DESC(mask,
		 "set this to the mask of event you want to enable (see doc)");

112 113 114 115 116 117
static int camera;		/* = 0 */
module_param(camera, int, 0444);
MODULE_PARM_DESC(camera,
		 "set this to 1 to enable Motion Eye camera controls "
		 "(only use it if you have a C1VE or C1VN model)");

118
#ifdef CONFIG_SONYPI_COMPAT
119 120 121 122 123 124 125
static int minor = -1;
module_param(minor, int, 0);
MODULE_PARM_DESC(minor,
		 "minor number of the misc device for the SPIC compatibility code, "
		 "default is -1 (automatic)");
#endif

126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145
/*********** Input Devices ***********/

#define SONY_LAPTOP_BUF_SIZE	128
struct sony_laptop_input_s {
	atomic_t		users;
	struct input_dev	*jog_dev;
	struct input_dev	*key_dev;
	struct kfifo		*fifo;
	spinlock_t		fifo_lock;
	struct workqueue_struct	*wq;
};
static struct sony_laptop_input_s sony_laptop_input = {
	.users = ATOMIC_INIT(0),
};

struct sony_laptop_keypress {
	struct input_dev *dev;
	int key;
};

146 147 148 149
/* Correspondance table between sonypi events
 * and input layer indexes in the keymap
 */
static int sony_laptop_input_index[] = {
M
Mattia Dongili 已提交
150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213
	-1,	/*  0 no event */
	-1,	/*  1 SONYPI_EVENT_JOGDIAL_DOWN */
	-1,	/*  2 SONYPI_EVENT_JOGDIAL_UP */
	-1,	/*  3 SONYPI_EVENT_JOGDIAL_DOWN_PRESSED */
	-1,	/*  4 SONYPI_EVENT_JOGDIAL_UP_PRESSED */
	-1,	/*  5 SONYPI_EVENT_JOGDIAL_PRESSED */
	-1,	/*  6 SONYPI_EVENT_JOGDIAL_RELEASED */
	 0,	/*  7 SONYPI_EVENT_CAPTURE_PRESSED */
	 1,	/*  8 SONYPI_EVENT_CAPTURE_RELEASED */
	 2,	/*  9 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
	 3,	/* 10 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
	 4,	/* 11 SONYPI_EVENT_FNKEY_ESC */
	 5,	/* 12 SONYPI_EVENT_FNKEY_F1 */
	 6,	/* 13 SONYPI_EVENT_FNKEY_F2 */
	 7,	/* 14 SONYPI_EVENT_FNKEY_F3 */
	 8,	/* 15 SONYPI_EVENT_FNKEY_F4 */
	 9,	/* 16 SONYPI_EVENT_FNKEY_F5 */
	10,	/* 17 SONYPI_EVENT_FNKEY_F6 */
	11,	/* 18 SONYPI_EVENT_FNKEY_F7 */
	12,	/* 19 SONYPI_EVENT_FNKEY_F8 */
	13,	/* 20 SONYPI_EVENT_FNKEY_F9 */
	14,	/* 21 SONYPI_EVENT_FNKEY_F10 */
	15,	/* 22 SONYPI_EVENT_FNKEY_F11 */
	16,	/* 23 SONYPI_EVENT_FNKEY_F12 */
	17,	/* 24 SONYPI_EVENT_FNKEY_1 */
	18,	/* 25 SONYPI_EVENT_FNKEY_2 */
	19,	/* 26 SONYPI_EVENT_FNKEY_D */
	20,	/* 27 SONYPI_EVENT_FNKEY_E */
	21,	/* 28 SONYPI_EVENT_FNKEY_F */
	22,	/* 29 SONYPI_EVENT_FNKEY_S */
	23,	/* 30 SONYPI_EVENT_FNKEY_B */
	24,	/* 31 SONYPI_EVENT_BLUETOOTH_PRESSED */
	25,	/* 32 SONYPI_EVENT_PKEY_P1 */
	26,	/* 33 SONYPI_EVENT_PKEY_P2 */
	27,	/* 34 SONYPI_EVENT_PKEY_P3 */
	28,	/* 35 SONYPI_EVENT_BACK_PRESSED */
	-1,	/* 36 SONYPI_EVENT_LID_CLOSED */
	-1,	/* 37 SONYPI_EVENT_LID_OPENED */
	29,	/* 38 SONYPI_EVENT_BLUETOOTH_ON */
	30,	/* 39 SONYPI_EVENT_BLUETOOTH_OFF */
	31,	/* 40 SONYPI_EVENT_HELP_PRESSED */
	32,	/* 41 SONYPI_EVENT_FNKEY_ONLY */
	33,	/* 42 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
	34,	/* 43 SONYPI_EVENT_JOGDIAL_FAST_UP */
	35,	/* 44 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
	36,	/* 45 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
	37,	/* 46 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
	38,	/* 47 SONYPI_EVENT_JOGDIAL_VFAST_UP */
	39,	/* 48 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
	40,	/* 49 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
	41,	/* 50 SONYPI_EVENT_ZOOM_PRESSED */
	42,	/* 51 SONYPI_EVENT_THUMBPHRASE_PRESSED */
	43,	/* 52 SONYPI_EVENT_MEYE_FACE */
	44,	/* 53 SONYPI_EVENT_MEYE_OPPOSITE */
	45,	/* 54 SONYPI_EVENT_MEMORYSTICK_INSERT */
	46,	/* 55 SONYPI_EVENT_MEMORYSTICK_EJECT */
	-1,	/* 56 SONYPI_EVENT_ANYBUTTON_RELEASED */
	-1,	/* 57 SONYPI_EVENT_BATTERY_INSERT */
	-1,	/* 58 SONYPI_EVENT_BATTERY_REMOVE */
	-1,	/* 59 SONYPI_EVENT_FNKEY_RELEASED */
	47,	/* 60 SONYPI_EVENT_WIRELESS_ON */
	48,	/* 61 SONYPI_EVENT_WIRELESS_OFF */
	49,	/* 62 SONYPI_EVENT_ZOOM_IN_PRESSED */
	50,	/* 63 SONYPI_EVENT_ZOOM_OUT_PRESSED */
214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265
};

static int sony_laptop_input_keycode_map[] = {
	KEY_CAMERA,	/*  0 SONYPI_EVENT_CAPTURE_PRESSED */
	KEY_RESERVED,	/*  1 SONYPI_EVENT_CAPTURE_RELEASED */
	KEY_RESERVED,	/*  2 SONYPI_EVENT_CAPTURE_PARTIALPRESSED */
	KEY_RESERVED,	/*  3 SONYPI_EVENT_CAPTURE_PARTIALRELEASED */
	KEY_FN_ESC,	/*  4 SONYPI_EVENT_FNKEY_ESC */
	KEY_FN_F1,	/*  5 SONYPI_EVENT_FNKEY_F1 */
	KEY_FN_F2,	/*  6 SONYPI_EVENT_FNKEY_F2 */
	KEY_FN_F3,	/*  7 SONYPI_EVENT_FNKEY_F3 */
	KEY_FN_F4,	/*  8 SONYPI_EVENT_FNKEY_F4 */
	KEY_FN_F5,	/*  9 SONYPI_EVENT_FNKEY_F5 */
	KEY_FN_F6,	/* 10 SONYPI_EVENT_FNKEY_F6 */
	KEY_FN_F7,	/* 11 SONYPI_EVENT_FNKEY_F7 */
	KEY_FN_F8,	/* 12 SONYPI_EVENT_FNKEY_F8 */
	KEY_FN_F9,	/* 13 SONYPI_EVENT_FNKEY_F9 */
	KEY_FN_F10,	/* 14 SONYPI_EVENT_FNKEY_F10 */
	KEY_FN_F11,	/* 15 SONYPI_EVENT_FNKEY_F11 */
	KEY_FN_F12,	/* 16 SONYPI_EVENT_FNKEY_F12 */
	KEY_FN_F1,	/* 17 SONYPI_EVENT_FNKEY_1 */
	KEY_FN_F2,	/* 18 SONYPI_EVENT_FNKEY_2 */
	KEY_FN_D,	/* 19 SONYPI_EVENT_FNKEY_D */
	KEY_FN_E,	/* 20 SONYPI_EVENT_FNKEY_E */
	KEY_FN_F,	/* 21 SONYPI_EVENT_FNKEY_F */
	KEY_FN_S,	/* 22 SONYPI_EVENT_FNKEY_S */
	KEY_FN_B,	/* 23 SONYPI_EVENT_FNKEY_B */
	KEY_BLUETOOTH,	/* 24 SONYPI_EVENT_BLUETOOTH_PRESSED */
	KEY_PROG1,	/* 25 SONYPI_EVENT_PKEY_P1 */
	KEY_PROG2,	/* 26 SONYPI_EVENT_PKEY_P2 */
	KEY_PROG3,	/* 27 SONYPI_EVENT_PKEY_P3 */
	KEY_BACK,	/* 28 SONYPI_EVENT_BACK_PRESSED */
	KEY_BLUETOOTH,	/* 29 SONYPI_EVENT_BLUETOOTH_ON */
	KEY_BLUETOOTH,	/* 30 SONYPI_EVENT_BLUETOOTH_OFF */
	KEY_HELP,	/* 31 SONYPI_EVENT_HELP_PRESSED */
	KEY_FN,		/* 32 SONYPI_EVENT_FNKEY_ONLY */
	KEY_RESERVED,	/* 33 SONYPI_EVENT_JOGDIAL_FAST_DOWN */
	KEY_RESERVED,	/* 34 SONYPI_EVENT_JOGDIAL_FAST_UP */
	KEY_RESERVED,	/* 35 SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED */
	KEY_RESERVED,	/* 36 SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED */
	KEY_RESERVED,	/* 37 SONYPI_EVENT_JOGDIAL_VFAST_DOWN */
	KEY_RESERVED,	/* 38 SONYPI_EVENT_JOGDIAL_VFAST_UP */
	KEY_RESERVED,	/* 39 SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED */
	KEY_RESERVED,	/* 40 SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED */
	KEY_ZOOM,	/* 41 SONYPI_EVENT_ZOOM_PRESSED */
	BTN_THUMB,	/* 42 SONYPI_EVENT_THUMBPHRASE_PRESSED */
	KEY_RESERVED,	/* 43 SONYPI_EVENT_MEYE_FACE */
	KEY_RESERVED,	/* 44 SONYPI_EVENT_MEYE_OPPOSITE */
	KEY_RESERVED,	/* 45 SONYPI_EVENT_MEMORYSTICK_INSERT */
	KEY_RESERVED,	/* 46 SONYPI_EVENT_MEMORYSTICK_EJECT */
	KEY_WLAN,	/* 47 SONYPI_EVENT_WIRELESS_ON */
	KEY_WLAN,	/* 48 SONYPI_EVENT_WIRELESS_OFF */
M
Mattia Dongili 已提交
266 267
	KEY_ZOOMIN,	/* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
	KEY_ZOOMOUT	/* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284
};

/* release buttons after a short delay if pressed */
static void do_sony_laptop_release_key(struct work_struct *work)
{
	struct sony_laptop_keypress kp;

	while (kfifo_get(sony_laptop_input.fifo, (unsigned char *)&kp,
			 sizeof(kp)) == sizeof(kp)) {
		msleep(10);
		input_report_key(kp.dev, kp.key, 0);
		input_sync(kp.dev);
	}
}
static DECLARE_WORK(sony_laptop_release_key_work,
		do_sony_laptop_release_key);

285
/* forward event to the input subsystem */
286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318
static void sony_laptop_report_input_event(u8 event)
{
	struct input_dev *jog_dev = sony_laptop_input.jog_dev;
	struct input_dev *key_dev = sony_laptop_input.key_dev;
	struct sony_laptop_keypress kp = { NULL };

	if (event == SONYPI_EVENT_FNKEY_RELEASED) {
		/* Nothing, not all VAIOs generate this event */
		return;
	}

	/* report events */
	switch (event) {
	/* jog_dev events */
	case SONYPI_EVENT_JOGDIAL_UP:
	case SONYPI_EVENT_JOGDIAL_UP_PRESSED:
		input_report_rel(jog_dev, REL_WHEEL, 1);
		input_sync(jog_dev);
		return;

	case SONYPI_EVENT_JOGDIAL_DOWN:
	case SONYPI_EVENT_JOGDIAL_DOWN_PRESSED:
		input_report_rel(jog_dev, REL_WHEEL, -1);
		input_sync(jog_dev);
		return;

	/* key_dev events */
	case SONYPI_EVENT_JOGDIAL_PRESSED:
		kp.key = BTN_MIDDLE;
		kp.dev = jog_dev;
		break;

	default:
A
Adrian Bunk 已提交
319
		if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
320 321 322 323 324 325
			dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
			break;
		}
		if (sony_laptop_input_index[event] != -1) {
			kp.key = sony_laptop_input_keycode_map[sony_laptop_input_index[event]];
			if (kp.key != KEY_UNKNOWN)
326
				kp.dev = key_dev;
327
		}
328 329 330 331 332
		break;
	}

	if (kp.dev) {
		input_report_key(kp.dev, kp.key, 1);
333 334
		/* we emit the scancode so we can always remap the key */
		input_event(kp.dev, EV_MSC, MSC_SCAN, event);
335 336 337 338 339 340 341 342 343 344 345
		input_sync(kp.dev);
		kfifo_put(sony_laptop_input.fifo,
			  (unsigned char *)&kp, sizeof(kp));

		if (!work_pending(&sony_laptop_release_key_work))
			queue_work(sony_laptop_input.wq,
					&sony_laptop_release_key_work);
	} else
		dprintk("unknown input event %.2x\n", event);
}

346
static int sony_laptop_setup_input(struct acpi_device *acpi_device)
347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386
{
	struct input_dev *jog_dev;
	struct input_dev *key_dev;
	int i;
	int error;

	/* don't run again if already initialized */
	if (atomic_add_return(1, &sony_laptop_input.users) > 1)
		return 0;

	/* kfifo */
	spin_lock_init(&sony_laptop_input.fifo_lock);
	sony_laptop_input.fifo =
		kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
			    &sony_laptop_input.fifo_lock);
	if (IS_ERR(sony_laptop_input.fifo)) {
		printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
		error = PTR_ERR(sony_laptop_input.fifo);
		goto err_dec_users;
	}

	/* init workqueue */
	sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
	if (!sony_laptop_input.wq) {
		printk(KERN_ERR DRV_PFX
				"Unabe to create workqueue.\n");
		error = -ENXIO;
		goto err_free_kfifo;
	}

	/* input keys */
	key_dev = input_allocate_device();
	if (!key_dev) {
		error = -ENOMEM;
		goto err_destroy_wq;
	}

	key_dev->name = "Sony Vaio Keys";
	key_dev->id.bustype = BUS_ISA;
	key_dev->id.vendor = PCI_VENDOR_ID_SONY;
387
	key_dev->dev.parent = &acpi_device->dev;
388 389

	/* Initialize the Input Drivers: special keys */
390 391 392 393 394 395 396 397 398 399 400 401
	set_bit(EV_KEY, key_dev->evbit);
	set_bit(EV_MSC, key_dev->evbit);
	set_bit(MSC_SCAN, key_dev->mscbit);
	key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
	key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
	key_dev->keycode = &sony_laptop_input_keycode_map;
	for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
		if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
			set_bit(sony_laptop_input_keycode_map[i],
				key_dev->keybit);
		}
	}
402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418

	error = input_register_device(key_dev);
	if (error)
		goto err_free_keydev;

	sony_laptop_input.key_dev = key_dev;

	/* jogdial */
	jog_dev = input_allocate_device();
	if (!jog_dev) {
		error = -ENOMEM;
		goto err_unregister_keydev;
	}

	jog_dev->name = "Sony Vaio Jogdial";
	jog_dev->id.bustype = BUS_ISA;
	jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
419
	key_dev->dev.parent = &acpi_device->dev;
420

421 422 423
	jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
	jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
	jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476

	error = input_register_device(jog_dev);
	if (error)
		goto err_free_jogdev;

	sony_laptop_input.jog_dev = jog_dev;

	return 0;

err_free_jogdev:
	input_free_device(jog_dev);

err_unregister_keydev:
	input_unregister_device(key_dev);
	/* to avoid kref underflow below at input_free_device */
	key_dev = NULL;

err_free_keydev:
	input_free_device(key_dev);

err_destroy_wq:
	destroy_workqueue(sony_laptop_input.wq);

err_free_kfifo:
	kfifo_free(sony_laptop_input.fifo);

err_dec_users:
	atomic_dec(&sony_laptop_input.users);
	return error;
}

static void sony_laptop_remove_input(void)
{
	/* cleanup only after the last user has gone */
	if (!atomic_dec_and_test(&sony_laptop_input.users))
		return;

	/* flush workqueue first */
	flush_workqueue(sony_laptop_input.wq);

	/* destroy input devs */
	input_unregister_device(sony_laptop_input.key_dev);
	sony_laptop_input.key_dev = NULL;

	if (sony_laptop_input.jog_dev) {
		input_unregister_device(sony_laptop_input.jog_dev);
		sony_laptop_input.jog_dev = NULL;
	}

	destroy_workqueue(sony_laptop_input.wq);
	kfifo_free(sony_laptop_input.fifo);
}

477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534
/*********** Platform Device ***********/

static atomic_t sony_pf_users = ATOMIC_INIT(0);
static struct platform_driver sony_pf_driver = {
	.driver = {
		   .name = "sony-laptop",
		   .owner = THIS_MODULE,
		   }
};
static struct platform_device *sony_pf_device;

static int sony_pf_add(void)
{
	int ret = 0;

	/* don't run again if already initialized */
	if (atomic_add_return(1, &sony_pf_users) > 1)
		return 0;

	ret = platform_driver_register(&sony_pf_driver);
	if (ret)
		goto out;

	sony_pf_device = platform_device_alloc("sony-laptop", -1);
	if (!sony_pf_device) {
		ret = -ENOMEM;
		goto out_platform_registered;
	}

	ret = platform_device_add(sony_pf_device);
	if (ret)
		goto out_platform_alloced;

	return 0;

      out_platform_alloced:
	platform_device_put(sony_pf_device);
	sony_pf_device = NULL;
      out_platform_registered:
	platform_driver_unregister(&sony_pf_driver);
      out:
	atomic_dec(&sony_pf_users);
	return ret;
}

static void sony_pf_remove(void)
{
	/* deregister only after the last user has gone */
	if (!atomic_dec_and_test(&sony_pf_users))
		return;

	platform_device_del(sony_pf_device);
	platform_device_put(sony_pf_device);
	platform_driver_unregister(&sony_pf_driver);
}

/*********** SNC (SNY5001) Device ***********/

535 536 537 538 539 540 541
/* the device uses 1-based values, while the backlight subsystem uses
   0-based values */
#define SONY_MAX_BRIGHTNESS	8

#define SNC_VALIDATE_IN		0
#define SNC_VALIDATE_OUT	1

542
static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
L
Len Brown 已提交
543
			      char *);
544
static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
L
Len Brown 已提交
545
			       const char *, size_t);
546 547 548
static int boolean_validate(const int, const int);
static int brightness_default_validate(const int, const int);

549
struct sony_nc_value {
L
Len Brown 已提交
550 551 552
	char *name;		/* name of the entry */
	char **acpiget;		/* names of the ACPI get function */
	char **acpiset;		/* names of the ACPI set function */
553
	int (*validate)(const int, const int);	/* input/output validation */
L
Len Brown 已提交
554 555 556 557
	int value;		/* current setting */
	int valid;		/* Has ever been set */
	int debug;		/* active only in debug mode ? */
	struct device_attribute devattr;	/* sysfs atribute */
558 559
};

560
#define SNC_HANDLE_NAMES(_name, _values...) \
561 562
	static char *snc_##_name[] = { _values, NULL }

563
#define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
564 565 566 567
	{ \
		.name		= __stringify(_name), \
		.acpiget	= _getters, \
		.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

577 578
SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
579

580 581
SNC_HANDLE_NAMES(cdpower_get, "GCDP");
SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
582

583 584
SNC_HANDLE_NAMES(audiopower_get, "GAZP");
SNC_HANDLE_NAMES(audiopower_set, "AZPW");
585

586 587
SNC_HANDLE_NAMES(lanpower_get, "GLNP");
SNC_HANDLE_NAMES(lanpower_set, "LNPW");
588

589 590 591 592 593 594 595 596
SNC_HANDLE_NAMES(lidstate_get, "GLID");

SNC_HANDLE_NAMES(indicatorlamp_get, "GILS");
SNC_HANDLE_NAMES(indicatorlamp_set, "SILS");

SNC_HANDLE_NAMES(gainbass_get, "GMGB");
SNC_HANDLE_NAMES(gainbass_set, "CMGB");

597
SNC_HANDLE_NAMES(PID_get, "GPID");
598

599 600
SNC_HANDLE_NAMES(CTR_get, "GCTR");
SNC_HANDLE_NAMES(CTR_set, "SCTR");
601

602 603
SNC_HANDLE_NAMES(PCR_get, "GPCR");
SNC_HANDLE_NAMES(PCR_set, "SPCR");
604

605 606
SNC_HANDLE_NAMES(CMI_get, "GCMI");
SNC_HANDLE_NAMES(CMI_set, "SCMI");
607

608 609
static struct sony_nc_value sony_nc_values[] = {
	SNC_HANDLE(brightness_default, snc_brightness_def_get,
610
			snc_brightness_def_set, brightness_default_validate, 0),
611 612 613
	SNC_HANDLE(fnkey, snc_fnkey_get, NULL, NULL, 0),
	SNC_HANDLE(cdpower, snc_cdpower_get, snc_cdpower_set, boolean_validate, 0),
	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),
617 618 619 620 621 622
	SNC_HANDLE(lidstate, snc_lidstate_get, NULL,
			boolean_validate, 0),
	SNC_HANDLE(indicatorlamp, snc_indicatorlamp_get, snc_indicatorlamp_set,
			boolean_validate, 0),
	SNC_HANDLE(gainbass, snc_gainbass_get, snc_gainbass_set,
			boolean_validate, 0),
623
	/* unknown methods */
624 625 626 627 628
	SNC_HANDLE(PID, snc_PID_get, NULL, NULL, 1),
	SNC_HANDLE(CTR, snc_CTR_get, snc_CTR_set, NULL, 1),
	SNC_HANDLE(PCR, snc_PCR_get, snc_PCR_set, NULL, 1),
	SNC_HANDLE(CMI, snc_CMI_get, snc_CMI_set, NULL, 1),
	SNC_HANDLE_NULL
629 630
};

631 632
static acpi_handle sony_nc_acpi_handle;
static struct acpi_device *sony_nc_acpi_device = NULL;
633

634 635 636
/*
 * acpi_evaluate_object wrappers
 */
637 638 639 640 641 642 643 644 645 646 647 648 649 650 651
static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
{
	struct acpi_buffer output;
	union acpi_object out_obj;
	acpi_status status;

	output.length = sizeof(out_obj);
	output.pointer = &out_obj;

	status = acpi_evaluate_object(handle, name, NULL, &output);
	if ((status == AE_OK) && (out_obj.type == ACPI_TYPE_INTEGER)) {
		*result = out_obj.integer.value;
		return 0;
	}

652
	printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677

	return -1;
}

static int acpi_callsetfunc(acpi_handle handle, char *name, int value,
			    int *result)
{
	struct acpi_object_list params;
	union acpi_object in_obj;
	struct acpi_buffer output;
	union acpi_object out_obj;
	acpi_status status;

	params.count = 1;
	params.pointer = &in_obj;
	in_obj.type = ACPI_TYPE_INTEGER;
	in_obj.integer.value = value;

	output.length = sizeof(out_obj);
	output.pointer = &out_obj;

	status = acpi_evaluate_object(handle, name, &params, &output);
	if (status == AE_OK) {
		if (result != NULL) {
			if (out_obj.type != ACPI_TYPE_INTEGER) {
678
				printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
679 680 681 682 683 684 685 686
				       "return type\n");
				return -1;
			}
			*result = out_obj.integer.value;
		}
		return 0;
	}

687
	printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
688 689 690 691

	return -1;
}

692
/*
693
 * sony_nc_values input/output validate functions
694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726
 */

/* brightness_default_validate:
 *
 * manipulate input output values to keep consistency with the
 * backlight framework for which brightness values are 0-based.
 */
static int brightness_default_validate(const int direction, const int value)
{
	switch (direction) {
		case SNC_VALIDATE_OUT:
			return value - 1;
		case SNC_VALIDATE_IN:
			if (value >= 0 && value < SONY_MAX_BRIGHTNESS)
				return value + 1;
	}
	return -EINVAL;
}

/* boolean_validate:
 *
 * on input validate boolean values 0/1, on output just pass the
 * received value.
 */
static int boolean_validate(const int direction, const int value)
{
	if (direction == SNC_VALIDATE_IN) {
		if (value != 0 && value != 1)
			return -EINVAL;
	}
	return value;
}

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,
L
Len Brown 已提交
731
			      char *buffer)
732 733
{
	int value;
734 735
	struct sony_nc_value *item =
	    container_of(attr, struct sony_nc_value, devattr);
736

737
	if (!*item->acpiget)
738 739
		return -EIO;

740
	if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
741 742
		return -EIO;

743 744 745
	if (item->validate)
		value = item->validate(SNC_VALIDATE_OUT, value);

746
	return snprintf(buffer, PAGE_SIZE, "%d\n", value);
747 748
}

749
static ssize_t sony_nc_sysfs_store(struct device *dev,
L
Len Brown 已提交
750 751
			       struct device_attribute *attr,
			       const char *buffer, size_t count)
752 753
{
	int value;
754 755
	struct sony_nc_value *item =
	    container_of(attr, struct sony_nc_value, devattr);
756 757 758 759

	if (!item->acpiset)
		return -EIO;

760 761 762 763
	if (count > 31)
		return -EINVAL;

	value = simple_strtoul(buffer, NULL, 10);
764

765 766 767 768 769
	if (item->validate)
		value = item->validate(SNC_VALIDATE_IN, value);

	if (value < 0)
		return value;
770

771
	if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
772
		return -EIO;
773 774
	item->value = value;
	item->valid = 1;
775 776 777
	return count;
}

778

779 780 781 782
/*
 * Backlight device
 */
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

788 789 790
static int sony_backlight_get_brightness(struct backlight_device *bd)
{
	int value;
791

792
	if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
793 794 795
		return 0;
	/* brightness levels are 1-based, while backlight ones are 0-based */
	return value - 1;
796 797
}

798
static struct backlight_device *sony_backlight_device;
799
static struct backlight_ops sony_backlight_ops = {
L
Len Brown 已提交
800 801
	.update_status = sony_backlight_update_status,
	.get_brightness = sony_backlight_get_brightness,
802 803
};

804 805 806 807 808 809 810 811 812 813 814 815 816
/*
 * New SNC-only Vaios event mapping to driver known keys
 */
struct sony_nc_event {
	u8	data;
	u8	event;
};

static struct sony_nc_event *sony_nc_events;

/* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 * for Fn keys
 */
817
static int sony_nc_C_enable(const struct dmi_system_id *id)
818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854
{
	int result = 0;

	printk(KERN_NOTICE DRV_PFX "detected %s\n", id->ident);

	sony_nc_events = id->driver_data;

	if (acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x4, &result) < 0
			|| acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x2, &result) < 0
			|| acpi_callsetfunc(sony_nc_acpi_handle, "SN02", 0x10, &result) < 0
			|| acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x0, &result) < 0
			|| acpi_callsetfunc(sony_nc_acpi_handle, "SN03", 0x2, &result) < 0
			|| acpi_callsetfunc(sony_nc_acpi_handle, "SN07", 0x101, &result) < 0) {
		printk(KERN_WARNING DRV_PFX "failed to initialize SNC, some "
				"functionalities may be missing\n");
		return 1;
	}
	return 0;
}

static struct sony_nc_event sony_C_events[] = {
	{ 0x81, SONYPI_EVENT_FNKEY_F1 },
	{ 0x01, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x85, SONYPI_EVENT_FNKEY_F5 },
	{ 0x05, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x86, SONYPI_EVENT_FNKEY_F6 },
	{ 0x06, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x87, SONYPI_EVENT_FNKEY_F7 },
	{ 0x07, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x8A, SONYPI_EVENT_FNKEY_F10 },
	{ 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x8C, SONYPI_EVENT_FNKEY_F12 },
	{ 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0, 0 },
};

/* SNC-only model map */
855
static const struct dmi_system_id sony_nc_ids[] = {
856 857 858 859 860 861 862 863 864
		{
			.ident = "Sony Vaio FE Series",
			.callback = sony_nc_C_enable,
			.driver_data = sony_C_events,
			.matches = {
				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FE"),
			},
		},
865 866 867 868 869 870 871 872 873
		{
			.ident = "Sony Vaio FZ Series",
			.callback = sony_nc_C_enable,
			.driver_data = sony_C_events,
			.matches = {
				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ"),
			},
		},
874 875 876 877 878 879 880 881 882
		{
			.ident = "Sony Vaio C Series",
			.callback = sony_nc_C_enable,
			.driver_data = sony_C_events,
			.matches = {
				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
			},
		},
883 884 885 886 887 888 889 890 891
		{
			.ident = "Sony Vaio N Series",
			.callback = sony_nc_C_enable,
			.driver_data = sony_C_events,
			.matches = {
				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-N"),
			},
		},
892 893 894
		{ }
};

895 896 897
/*
 * ACPI callbacks
 */
898 899
static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
{
900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931
	struct sony_nc_event *evmap;
	u32 ev = event;
	int result;

	if (ev == 0x92) {
		/* read the key pressed from EC.GECR
		 * A call to SN07 with 0x0202 will do it as well respecting
		 * the current protocol on different OSes
		 *
		 * Note: the path for GECR may be
		 *   \_SB.PCI0.LPCB.EC (C, FE, AR, N and friends)
		 *   \_SB.PCI0.PIB.EC0 (VGN-FR notifications are sent directly, no GECR)
		 *
		 * TODO: we may want to do the same for the older GHKE -need
		 *       dmi list- so this snippet may become one more callback.
		 */
		if (acpi_callsetfunc(handle, "SN07", 0x0202, &result) < 0)
			dprintk("sony_acpi_notify, unable to decode event 0x%.2x\n", ev);
		else
			ev = result & 0xFF;
	}

	if (sony_nc_events)
		for (evmap = sony_nc_events; evmap->event; evmap++) {
			if (evmap->data == ev) {
				ev = evmap->event;
				break;
			}
		}

	dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
	sony_laptop_report_input_event(ev);
932
	acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
933 934 935 936 937
}

static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
				      void *context, void **return_value)
{
938 939
	struct acpi_device_info *info;
	struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
940

941 942
	if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) {
		info = buffer.pointer;
943

944 945 946 947 948
		printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n",
			(char *)&info->name, info->param_count);

		kfree(buffer.pointer);
	}
949 950 951 952

	return AE_OK;
}

953 954 955
/*
 * ACPI device
 */
956
static int sony_nc_resume(struct acpi_device *device)
957
{
958
	struct sony_nc_value *item;
959

960
	for (item = sony_nc_values; item->name; item++) {
961 962 963 964
		int ret;

		if (!item->valid)
			continue;
965
		ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
L
Len Brown 已提交
966
				       item->value, NULL);
967
		if (ret < 0) {
968
			printk("%s: %d\n", __func__, ret);
969 970 971
			break;
		}
	}
972

973 974 975
	/* set the last requested brightness level */
	if (sony_backlight_device &&
			!sony_backlight_update_status(sony_backlight_device))
976
		printk(KERN_WARNING DRV_PFX "unable to restore brightness level\n");
977

978 979 980
	/* re-initialize models with specific requirements */
	dmi_check_system(sony_nc_ids);

981 982 983
	return 0;
}

984
static int sony_nc_add(struct acpi_device *device)
985 986
{
	acpi_status status;
987
	int result = 0;
988
	acpi_handle handle;
989
	struct sony_nc_value *item;
990

991 992 993
	printk(KERN_INFO DRV_PFX "%s v%s.\n",
		SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);

994
	sony_nc_acpi_device = device;
995
	strcpy(acpi_device_class(device), "sony/hotkey");
996

997
	sony_nc_acpi_handle = device->handle;
998

999 1000 1001 1002 1003 1004 1005 1006 1007
	/* read device status */
	result = acpi_bus_get_status(device);
	/* bail IFF the above call was successful and the device is not present */
	if (!result && !device->status.present) {
		dprintk("Device not present\n");
		result = -ENODEV;
		goto outwalk;
	}

1008
	if (debug) {
1009
		status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1010 1011
					     1, sony_walk_callback, NULL, NULL);
		if (ACPI_FAILURE(status)) {
1012
			printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
1013 1014 1015
			result = -ENODEV;
			goto outwalk;
		}
1016
	}
1017

1018 1019 1020 1021 1022 1023 1024 1025 1026
	/* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
	 * should be respected as we already checked for the device presence above */
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
		dprintk("Invoking _INI\n");
		if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
						NULL, NULL)))
			dprintk("_INI Method failed\n");
	}

1027
	/* setup input devices and helper fifo */
1028
	result = sony_laptop_setup_input(device);
1029 1030 1031 1032 1033 1034
	if (result) {
		printk(KERN_ERR DRV_PFX
				"Unabe to create input devices.\n");
		goto outwalk;
	}

1035
	status = acpi_install_notify_handler(sony_nc_acpi_handle,
1036
					     ACPI_DEVICE_NOTIFY,
L
Len Brown 已提交
1037
					     sony_acpi_notify, NULL);
1038
	if (ACPI_FAILURE(status)) {
1039
		printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
1040
		result = -ENODEV;
1041
		goto outinput;
1042 1043
	}

1044
	if (acpi_video_backlight_support()) {
A
Alessandro Guido 已提交
1045
		printk(KERN_INFO DRV_PFX "brightness ignored, must be "
1046 1047 1048
		       "controlled by ACPI video driver\n");
	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
						&handle))) {
1049
		sony_backlight_device = backlight_device_register("sony", NULL,
L
Len Brown 已提交
1050
								  NULL,
1051
								  &sony_backlight_ops);
1052

L
Len Brown 已提交
1053
		if (IS_ERR(sony_backlight_device)) {
1054
			printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
1055
			sony_backlight_device = NULL;
1056 1057
		} else {
			sony_backlight_device->props.brightness =
L
Len Brown 已提交
1058 1059
			    sony_backlight_get_brightness
			    (sony_backlight_device);
1060
			sony_backlight_device->props.max_brightness =
1061 1062 1063
			    SONY_MAX_BRIGHTNESS - 1;
		}

1064
	}
1065

1066 1067 1068
	/* initialize models with specific requirements */
	dmi_check_system(sony_nc_ids);

1069 1070
	result = sony_pf_add();
	if (result)
1071
		goto outbacklight;
1072

1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083
	/* create sony_pf sysfs attributes related to the SNC device */
	for (item = sony_nc_values; item->name; ++item) {

		if (!debug && item->debug)
			continue;

		/* find the available acpiget as described in the DSDT */
		for (; item->acpiget && *item->acpiget; ++item->acpiget) {
			if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
							 *item->acpiget,
							 &handle))) {
1084 1085
				dprintk("Found %s getter: %s\n",
						item->name, *item->acpiget);
1086 1087 1088 1089 1090 1091 1092 1093 1094 1095
				item->devattr.attr.mode |= S_IRUGO;
				break;
			}
		}

		/* find the available acpiset as described in the DSDT */
		for (; item->acpiset && *item->acpiset; ++item->acpiset) {
			if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
							 *item->acpiset,
							 &handle))) {
1096 1097
				dprintk("Found %s setter: %s\n",
						item->name, *item->acpiset);
1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111
				item->devattr.attr.mode |= S_IWUSR;
				break;
			}
		}

		if (item->devattr.attr.mode != 0) {
			result =
			    device_create_file(&sony_pf_device->dev,
					       &item->devattr);
			if (result)
				goto out_sysfs;
		}
	}

1112 1113
	return 0;

1114 1115 1116 1117 1118
      out_sysfs:
	for (item = sony_nc_values; item->name; ++item) {
		device_remove_file(&sony_pf_device->dev, &item->devattr);
	}
	sony_pf_remove();
1119

L
Len Brown 已提交
1120
      outbacklight:
1121 1122 1123
	if (sony_backlight_device)
		backlight_device_unregister(sony_backlight_device);

1124
	status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1125 1126 1127
					    ACPI_DEVICE_NOTIFY,
					    sony_acpi_notify);
	if (ACPI_FAILURE(status))
1128
		printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1129 1130 1131 1132

      outinput:
	sony_laptop_remove_input();

L
Len Brown 已提交
1133
      outwalk:
1134 1135 1136
	return result;
}

1137
static int sony_nc_remove(struct acpi_device *device, int type)
1138 1139
{
	acpi_status status;
1140
	struct sony_nc_value *item;
1141

1142 1143 1144
	if (sony_backlight_device)
		backlight_device_unregister(sony_backlight_device);

1145
	sony_nc_acpi_device = NULL;
1146

1147
	status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1148 1149 1150
					    ACPI_DEVICE_NOTIFY,
					    sony_acpi_notify);
	if (ACPI_FAILURE(status))
1151
		printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1152

1153 1154 1155 1156 1157
	for (item = sony_nc_values; item->name; ++item) {
		device_remove_file(&sony_pf_device->dev, &item->devattr);
	}

	sony_pf_remove();
1158
	sony_laptop_remove_input();
1159
	dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1160 1161 1162 1163

	return 0;
}

1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175
static const struct acpi_device_id sony_device_ids[] = {
	{SONY_NC_HID, 0},
	{SONY_PIC_HID, 0},
	{"", 0},
};
MODULE_DEVICE_TABLE(acpi, sony_device_ids);

static const struct acpi_device_id sony_nc_device_ids[] = {
	{SONY_NC_HID, 0},
	{"", 0},
};

1176 1177 1178
static struct acpi_driver sony_nc_driver = {
	.name = SONY_NC_DRIVER_NAME,
	.class = SONY_NC_CLASS,
1179
	.ids = sony_nc_device_ids,
1180
	.owner = THIS_MODULE,
L
Len Brown 已提交
1181
	.ops = {
1182 1183 1184
		.add = sony_nc_add,
		.remove = sony_nc_remove,
		.resume = sony_nc_resume,
L
Len Brown 已提交
1185
		},
1186 1187
};

1188 1189 1190 1191 1192
/*********** SPIC (SNY6001) Device ***********/

#define SONYPI_DEVICE_TYPE1	0x00000001
#define SONYPI_DEVICE_TYPE2	0x00000002
#define SONYPI_DEVICE_TYPE3	0x00000004
M
Mattia Dongili 已提交
1193
#define SONYPI_DEVICE_TYPE4	0x00000008
1194

1195 1196 1197
#define SONYPI_TYPE1_OFFSET	0x04
#define SONYPI_TYPE2_OFFSET	0x12
#define SONYPI_TYPE3_OFFSET	0x12
M
Mattia Dongili 已提交
1198
#define SONYPI_TYPE4_OFFSET	0x12
1199 1200

struct sony_pic_ioport {
1201 1202
	struct acpi_resource_io	io1;
	struct acpi_resource_io	io2;
1203 1204 1205 1206 1207 1208 1209 1210
	struct list_head	list;
};

struct sony_pic_irq {
	struct acpi_resource_irq	irq;
	struct list_head		list;
};

1211 1212 1213 1214 1215 1216 1217 1218
struct sonypi_eventtypes {
	u8			data;
	unsigned long		mask;
	struct sonypi_event	*events;
};

struct device_ctrl {
	int				model;
M
Mattia Dongili 已提交
1219
	int				(*handle_irq)(const u8, const u8);
1220 1221 1222 1223 1224 1225 1226
	u16				evport_offset;
	u8				has_camera;
	u8				has_bluetooth;
	u8				has_wwan;
	struct sonypi_eventtypes	*event_types;
};

1227
struct sony_pic_dev {
1228
	struct device_ctrl	*control;
1229 1230 1231 1232 1233
	struct acpi_device	*acpi_dev;
	struct sony_pic_irq	*cur_irq;
	struct sony_pic_ioport	*cur_ioport;
	struct list_head	interrupts;
	struct list_head	ioports;
1234
	struct mutex		lock;
1235 1236 1237
	u8			camera_power;
	u8			bluetooth_power;
	u8			wwan_power;
1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293
};

static struct sony_pic_dev spic_dev = {
	.interrupts	= LIST_HEAD_INIT(spic_dev.interrupts),
	.ioports	= LIST_HEAD_INIT(spic_dev.ioports),
};

/* Event masks */
#define SONYPI_JOGGER_MASK			0x00000001
#define SONYPI_CAPTURE_MASK			0x00000002
#define SONYPI_FNKEY_MASK			0x00000004
#define SONYPI_BLUETOOTH_MASK			0x00000008
#define SONYPI_PKEY_MASK			0x00000010
#define SONYPI_BACK_MASK			0x00000020
#define SONYPI_HELP_MASK			0x00000040
#define SONYPI_LID_MASK				0x00000080
#define SONYPI_ZOOM_MASK			0x00000100
#define SONYPI_THUMBPHRASE_MASK			0x00000200
#define SONYPI_MEYE_MASK			0x00000400
#define SONYPI_MEMORYSTICK_MASK			0x00000800
#define SONYPI_BATTERY_MASK			0x00001000
#define SONYPI_WIRELESS_MASK			0x00002000

struct sonypi_event {
	u8	data;
	u8	event;
};

/* The set of possible button release events */
static struct sonypi_event sonypi_releaseev[] = {
	{ 0x00, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0, 0 }
};

/* The set of possible jogger events  */
static struct sonypi_event sonypi_joggerev[] = {
	{ 0x1f, SONYPI_EVENT_JOGDIAL_UP },
	{ 0x01, SONYPI_EVENT_JOGDIAL_DOWN },
	{ 0x5f, SONYPI_EVENT_JOGDIAL_UP_PRESSED },
	{ 0x41, SONYPI_EVENT_JOGDIAL_DOWN_PRESSED },
	{ 0x1e, SONYPI_EVENT_JOGDIAL_FAST_UP },
	{ 0x02, SONYPI_EVENT_JOGDIAL_FAST_DOWN },
	{ 0x5e, SONYPI_EVENT_JOGDIAL_FAST_UP_PRESSED },
	{ 0x42, SONYPI_EVENT_JOGDIAL_FAST_DOWN_PRESSED },
	{ 0x1d, SONYPI_EVENT_JOGDIAL_VFAST_UP },
	{ 0x03, SONYPI_EVENT_JOGDIAL_VFAST_DOWN },
	{ 0x5d, SONYPI_EVENT_JOGDIAL_VFAST_UP_PRESSED },
	{ 0x43, SONYPI_EVENT_JOGDIAL_VFAST_DOWN_PRESSED },
	{ 0x40, SONYPI_EVENT_JOGDIAL_PRESSED },
	{ 0, 0 }
};

/* The set of possible capture button events */
static struct sonypi_event sonypi_captureev[] = {
	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
M
Mattia Dongili 已提交
1294
	{ 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371
	{ 0x01, SONYPI_EVENT_CAPTURE_PARTIALRELEASED },
	{ 0, 0 }
};

/* The set of possible fnkeys events */
static struct sonypi_event sonypi_fnkeyev[] = {
	{ 0x10, SONYPI_EVENT_FNKEY_ESC },
	{ 0x11, SONYPI_EVENT_FNKEY_F1 },
	{ 0x12, SONYPI_EVENT_FNKEY_F2 },
	{ 0x13, SONYPI_EVENT_FNKEY_F3 },
	{ 0x14, SONYPI_EVENT_FNKEY_F4 },
	{ 0x15, SONYPI_EVENT_FNKEY_F5 },
	{ 0x16, SONYPI_EVENT_FNKEY_F6 },
	{ 0x17, SONYPI_EVENT_FNKEY_F7 },
	{ 0x18, SONYPI_EVENT_FNKEY_F8 },
	{ 0x19, SONYPI_EVENT_FNKEY_F9 },
	{ 0x1a, SONYPI_EVENT_FNKEY_F10 },
	{ 0x1b, SONYPI_EVENT_FNKEY_F11 },
	{ 0x1c, SONYPI_EVENT_FNKEY_F12 },
	{ 0x1f, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x21, SONYPI_EVENT_FNKEY_1 },
	{ 0x22, SONYPI_EVENT_FNKEY_2 },
	{ 0x31, SONYPI_EVENT_FNKEY_D },
	{ 0x32, SONYPI_EVENT_FNKEY_E },
	{ 0x33, SONYPI_EVENT_FNKEY_F },
	{ 0x34, SONYPI_EVENT_FNKEY_S },
	{ 0x35, SONYPI_EVENT_FNKEY_B },
	{ 0x36, SONYPI_EVENT_FNKEY_ONLY },
	{ 0, 0 }
};

/* The set of possible program key events */
static struct sonypi_event sonypi_pkeyev[] = {
	{ 0x01, SONYPI_EVENT_PKEY_P1 },
	{ 0x02, SONYPI_EVENT_PKEY_P2 },
	{ 0x04, SONYPI_EVENT_PKEY_P3 },
	{ 0, 0 }
};

/* The set of possible bluetooth events */
static struct sonypi_event sonypi_blueev[] = {
	{ 0x55, SONYPI_EVENT_BLUETOOTH_PRESSED },
	{ 0x59, SONYPI_EVENT_BLUETOOTH_ON },
	{ 0x5a, SONYPI_EVENT_BLUETOOTH_OFF },
	{ 0, 0 }
};

/* The set of possible wireless events */
static struct sonypi_event sonypi_wlessev[] = {
	{ 0x59, SONYPI_EVENT_WIRELESS_ON },
	{ 0x5a, SONYPI_EVENT_WIRELESS_OFF },
	{ 0, 0 }
};

/* The set of possible back button events */
static struct sonypi_event sonypi_backev[] = {
	{ 0x20, SONYPI_EVENT_BACK_PRESSED },
	{ 0, 0 }
};

/* The set of possible help button events */
static struct sonypi_event sonypi_helpev[] = {
	{ 0x3b, SONYPI_EVENT_HELP_PRESSED },
	{ 0, 0 }
};


/* The set of possible lid events */
static struct sonypi_event sonypi_lidev[] = {
	{ 0x51, SONYPI_EVENT_LID_CLOSED },
	{ 0x50, SONYPI_EVENT_LID_OPENED },
	{ 0, 0 }
};

/* The set of possible zoom events */
static struct sonypi_event sonypi_zoomev[] = {
	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
M
Mattia Dongili 已提交
1372 1373
	{ 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
	{ 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403
	{ 0, 0 }
};

/* The set of possible thumbphrase events */
static struct sonypi_event sonypi_thumbphraseev[] = {
	{ 0x3a, SONYPI_EVENT_THUMBPHRASE_PRESSED },
	{ 0, 0 }
};

/* The set of possible motioneye camera events */
static struct sonypi_event sonypi_meyeev[] = {
	{ 0x00, SONYPI_EVENT_MEYE_FACE },
	{ 0x01, SONYPI_EVENT_MEYE_OPPOSITE },
	{ 0, 0 }
};

/* The set of possible memorystick events */
static struct sonypi_event sonypi_memorystickev[] = {
	{ 0x53, SONYPI_EVENT_MEMORYSTICK_INSERT },
	{ 0x54, SONYPI_EVENT_MEMORYSTICK_EJECT },
	{ 0, 0 }
};

/* The set of possible battery events */
static struct sonypi_event sonypi_batteryev[] = {
	{ 0x20, SONYPI_EVENT_BATTERY_INSERT },
	{ 0x30, SONYPI_EVENT_BATTERY_REMOVE },
	{ 0, 0 }
};

1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441
static struct sonypi_eventtypes type1_events[] = {
	{ 0, 0xffffffff, sonypi_releaseev },
	{ 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
	{ 0x30, SONYPI_LID_MASK, sonypi_lidev },
	{ 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
	{ 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
	{ 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
	{ 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },
	{ 0 },
};
static struct sonypi_eventtypes type2_events[] = {
	{ 0, 0xffffffff, sonypi_releaseev },
	{ 0x38, SONYPI_LID_MASK, sonypi_lidev },
	{ 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
	{ 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
	{ 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0x11, SONYPI_BACK_MASK, sonypi_backev },
	{ 0x21, SONYPI_HELP_MASK, sonypi_helpev },
	{ 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
	{ 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0 },
};
static struct sonypi_eventtypes type3_events[] = {
	{ 0, 0xffffffff, sonypi_releaseev },
	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
	{ 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0 },
1442
};
M
Mattia Dongili 已提交
1443 1444 1445 1446 1447 1448 1449 1450 1451 1452
static struct sonypi_eventtypes type4_events[] = {
	{ 0, 0xffffffff, sonypi_releaseev },
	{ 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
	{ 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
	{ 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
	{ 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
	{ 0 },
1453 1454
};

M
Mattia Dongili 已提交
1455
/* low level spic calls */
1456 1457 1458 1459 1460 1461 1462 1463
#define ITERATIONS_LONG		10000
#define ITERATIONS_SHORT	10
#define wait_on_command(command, iterations) {				\
	unsigned int n = iterations;					\
	while (--n && (command))					\
		udelay(1);						\
	if (!n)								\
		dprintk("command failed at %s : %s (line %d)\n",	\
1464
				__FILE__, __func__, __LINE__);	\
1465 1466 1467 1468 1469 1470
}

static u8 sony_pic_call1(u8 dev)
{
	u8 v1, v2;

1471
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1472
			ITERATIONS_LONG);
1473 1474 1475
	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
	v1 = inb_p(spic_dev.cur_ioport->io1.minimum + 4);
	v2 = inb_p(spic_dev.cur_ioport->io1.minimum);
1476
	dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
1477 1478 1479 1480 1481 1482 1483
	return v2;
}

static u8 sony_pic_call2(u8 dev, u8 fn)
{
	u8 v1;

1484
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1485
			ITERATIONS_LONG);
1486 1487
	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
1488
			ITERATIONS_LONG);
1489 1490
	outb(fn, spic_dev.cur_ioport->io1.minimum);
	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1491
	dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
1492 1493 1494
	return v1;
}

1495 1496 1497 1498
static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
{
	u8 v1;

1499 1500 1501 1502 1503 1504 1505
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
	outb(fn, spic_dev.cur_ioport->io1.minimum);
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2, ITERATIONS_LONG);
	outb(v, spic_dev.cur_ioport->io1.minimum);
	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
1506 1507
	dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
			dev, fn, v, v1);
1508 1509 1510
	return v1;
}

M
Mattia Dongili 已提交
1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604
/*
 * minidrivers for SPIC models
 */
static int type4_handle_irq(const u8 data_mask, const u8 ev)
{
	/*
	 * 0x31 could mean we have to take some extra action and wait for
	 * the next irq for some Type4 models, it will generate a new
	 * irq and we can read new data from the device:
	 *  - 0x5c and 0x5f requires 0xA0
	 *  - 0x61 requires 0xB3
	 */
	if (data_mask == 0x31) {
		if (ev == 0x5c || ev == 0x5f)
			sony_pic_call1(0xA0);
		else if (ev == 0x61)
			sony_pic_call1(0xB3);
		return 0;
	}
	return 1;
}

static struct device_ctrl spic_types[] = {
	{
		.model = SONYPI_DEVICE_TYPE1,
		.handle_irq = NULL,
		.evport_offset = SONYPI_TYPE1_OFFSET,
		.event_types = type1_events,
	},
	{
		.model = SONYPI_DEVICE_TYPE2,
		.handle_irq = NULL,
		.evport_offset = SONYPI_TYPE2_OFFSET,
		.event_types = type2_events,
	},
	{
		.model = SONYPI_DEVICE_TYPE3,
		.handle_irq = NULL,
		.evport_offset = SONYPI_TYPE3_OFFSET,
		.event_types = type3_events,
	},
	{
		.model = SONYPI_DEVICE_TYPE4,
		.handle_irq = type4_handle_irq,
		.evport_offset = SONYPI_TYPE4_OFFSET,
		.event_types = type4_events,
	},
};

static void sony_pic_detect_device_type(struct sony_pic_dev *dev)
{
	struct pci_dev *pcidev;

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_82371AB_3, NULL);
	if (pcidev) {
		dev->control = &spic_types[0];
		goto out;
	}

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
	if (pcidev) {
		dev->control = &spic_types[2];
		goto out;
	}

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
	if (pcidev) {
		dev->control = &spic_types[3];
		goto out;
	}

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
	if (pcidev) {
		dev->control = &spic_types[3];
		goto out;
	}

	/* default */
	dev->control = &spic_types[1];

out:
	if (pcidev)
		pci_dev_put(pcidev);

	printk(KERN_INFO DRV_PFX "detected Type%d model\n",
			dev->control->model == SONYPI_DEVICE_TYPE1 ? 1 :
			dev->control->model == SONYPI_DEVICE_TYPE2 ? 2 :
			dev->control->model == SONYPI_DEVICE_TYPE3 ? 3 : 4);
}

1605 1606 1607
/* camera tests and poweron/poweroff */
#define SONYPI_CAMERA_PICTURE		5
#define SONYPI_CAMERA_CONTROL		0x10
1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635

#define SONYPI_CAMERA_BRIGHTNESS		0
#define SONYPI_CAMERA_CONTRAST			1
#define SONYPI_CAMERA_HUE			2
#define SONYPI_CAMERA_COLOR			3
#define SONYPI_CAMERA_SHARPNESS			4

#define SONYPI_CAMERA_EXPOSURE_MASK		0xC
#define SONYPI_CAMERA_WHITE_BALANCE_MASK	0x3
#define SONYPI_CAMERA_PICTURE_MODE_MASK		0x30
#define SONYPI_CAMERA_MUTE_MASK			0x40

/* the rest don't need a loop until not 0xff */
#define SONYPI_CAMERA_AGC			6
#define SONYPI_CAMERA_AGC_MASK			0x30
#define SONYPI_CAMERA_SHUTTER_MASK 		0x7

#define SONYPI_CAMERA_SHUTDOWN_REQUEST		7
#define SONYPI_CAMERA_CONTROL			0x10

#define SONYPI_CAMERA_STATUS 			7
#define SONYPI_CAMERA_STATUS_READY 		0x2
#define SONYPI_CAMERA_STATUS_POSITION		0x4

#define SONYPI_DIRECTION_BACKWARDS 		0x4

#define SONYPI_CAMERA_REVISION 			8
#define SONYPI_CAMERA_ROMVERSION 		9
1636

1637
static int __sony_pic_camera_ready(void)
1638 1639 1640 1641 1642 1643 1644
{
	u8 v;

	v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
	return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
}

1645
static int __sony_pic_camera_off(void)
1646
{
1647 1648 1649 1650 1651
	if (!camera) {
		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
		return -ENODEV;
	}

1652 1653 1654 1655
	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
				SONYPI_CAMERA_MUTE_MASK),
			ITERATIONS_SHORT);

1656 1657 1658 1659 1660
	if (spic_dev.camera_power) {
		sony_pic_call2(0x91, 0);
		spic_dev.camera_power = 0;
	}
	return 0;
1661 1662
}

1663
static int __sony_pic_camera_on(void)
1664
{
1665 1666 1667 1668 1669 1670
	int i, j, x;

	if (!camera) {
		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
		return -ENODEV;
	}
1671 1672

	if (spic_dev.camera_power)
1673
		return 0;
1674 1675 1676

	for (j = 5; j > 0; j--) {

1677
		for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1678 1679 1680 1681
			msleep(10);
		sony_pic_call1(0x93);

		for (i = 400; i > 0; i--) {
1682
			if (__sony_pic_camera_ready())
1683 1684 1685 1686 1687 1688 1689 1690
				break;
			msleep(10);
		}
		if (i)
			break;
	}

	if (j == 0) {
1691
		printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1692
		return -ENODEV;
1693 1694 1695 1696 1697 1698 1699
	}

	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
				0x5a),
			ITERATIONS_SHORT);

	spic_dev.camera_power = 1;
1700
	return 0;
1701 1702
}

1703 1704 1705 1706 1707 1708 1709 1710 1711
/* External camera command (exported to the motion eye v4l driver) */
int sony_pic_camera_command(int command, u8 value)
{
	if (!camera)
		return -EIO;

	mutex_lock(&spic_dev.lock);

	switch (command) {
1712
	case SONY_PIC_COMMAND_SETCAMERA:
1713 1714 1715 1716 1717
		if (value)
			__sony_pic_camera_on();
		else
			__sony_pic_camera_off();
		break;
1718
	case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1719 1720 1721
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
				ITERATIONS_SHORT);
		break;
1722
	case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1723 1724 1725
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
				ITERATIONS_SHORT);
		break;
1726
	case SONY_PIC_COMMAND_SETCAMERAHUE:
1727 1728 1729
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
				ITERATIONS_SHORT);
		break;
1730
	case SONY_PIC_COMMAND_SETCAMERACOLOR:
1731 1732 1733
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
				ITERATIONS_SHORT);
		break;
1734
	case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1735 1736 1737
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
				ITERATIONS_SHORT);
		break;
1738
	case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1739 1740 1741
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
				ITERATIONS_SHORT);
		break;
1742
	case SONY_PIC_COMMAND_SETCAMERAAGC:
1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
				ITERATIONS_SHORT);
		break;
	default:
		printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
		       command);
		break;
	}
	mutex_unlock(&spic_dev.lock);
	return 0;
}
EXPORT_SYMBOL(sony_pic_camera_command);

1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793
/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
static void sony_pic_set_wwanpower(u8 state)
{
	state = !!state;
	mutex_lock(&spic_dev.lock);
	if (spic_dev.wwan_power == state) {
		mutex_unlock(&spic_dev.lock);
		return;
	}
	sony_pic_call2(0xB0, state);
	spic_dev.wwan_power = state;
	mutex_unlock(&spic_dev.lock);
}

static ssize_t sony_pic_wwanpower_store(struct device *dev,
		struct device_attribute *attr,
		const char *buffer, size_t count)
{
	unsigned long value;
	if (count > 31)
		return -EINVAL;

	value = simple_strtoul(buffer, NULL, 10);
	sony_pic_set_wwanpower(value);

	return count;
}

static ssize_t sony_pic_wwanpower_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	ssize_t count;
	mutex_lock(&spic_dev.lock);
	count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.wwan_power);
	mutex_unlock(&spic_dev.lock);
	return count;
}

1794
/* bluetooth subsystem power state */
1795
static void __sony_pic_set_bluetoothpower(u8 state)
1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813
{
	state = !!state;
	if (spic_dev.bluetooth_power == state)
		return;
	sony_pic_call2(0x96, state);
	sony_pic_call1(0x82);
	spic_dev.bluetooth_power = state;
}

static ssize_t sony_pic_bluetoothpower_store(struct device *dev,
		struct device_attribute *attr,
		const char *buffer, size_t count)
{
	unsigned long value;
	if (count > 31)
		return -EINVAL;

	value = simple_strtoul(buffer, NULL, 10);
1814 1815 1816
	mutex_lock(&spic_dev.lock);
	__sony_pic_set_bluetoothpower(value);
	mutex_unlock(&spic_dev.lock);
1817 1818 1819 1820 1821 1822 1823

	return count;
}

static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
1824 1825 1826 1827 1828
	ssize_t count = 0;
	mutex_lock(&spic_dev.lock);
	count = snprintf(buffer, PAGE_SIZE, "%d\n", spic_dev.bluetooth_power);
	mutex_unlock(&spic_dev.lock);
	return count;
1829 1830 1831 1832 1833
}

/* fan speed */
/* FAN0 information (reverse engineered from ACPI tables) */
#define SONY_PIC_FAN0_STATUS	0x93
1834 1835 1836 1837 1838 1839 1840 1841 1842 1843
static int sony_pic_set_fanspeed(unsigned long value)
{
	return ec_write(SONY_PIC_FAN0_STATUS, value);
}

static int sony_pic_get_fanspeed(u8 *value)
{
	return ec_read(SONY_PIC_FAN0_STATUS, value);
}

1844 1845 1846 1847 1848 1849 1850 1851 1852
static ssize_t sony_pic_fanspeed_store(struct device *dev,
		struct device_attribute *attr,
		const char *buffer, size_t count)
{
	unsigned long value;
	if (count > 31)
		return -EINVAL;

	value = simple_strtoul(buffer, NULL, 10);
1853
	if (sony_pic_set_fanspeed(value))
1854 1855 1856 1857 1858 1859 1860 1861 1862
		return -EIO;

	return count;
}

static ssize_t sony_pic_fanspeed_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	u8 value = 0;
1863
	if (sony_pic_get_fanspeed(&value))
1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874
		return -EIO;

	return snprintf(buffer, PAGE_SIZE, "%d\n", value);
}

#define SPIC_ATTR(_name, _mode)					\
struct device_attribute spic_attr_##_name = __ATTR(_name,	\
		_mode, sony_pic_## _name ##_show,		\
		sony_pic_## _name ##_store)

static SPIC_ATTR(bluetoothpower, 0644);
1875
static SPIC_ATTR(wwanpower, 0644);
1876 1877 1878 1879
static SPIC_ATTR(fanspeed, 0644);

static struct attribute *spic_attributes[] = {
	&spic_attr_bluetoothpower.attr,
1880
	&spic_attr_wwanpower.attr,
1881 1882 1883 1884 1885 1886 1887 1888
	&spic_attr_fanspeed.attr,
	NULL
};

static struct attribute_group spic_attribute_group = {
	.attrs = spic_attributes
};

1889
/******** SONYPI compatibility **********/
1890
#ifdef CONFIG_SONYPI_COMPAT
1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936

/* battery / brightness / temperature  addresses */
#define SONYPI_BAT_FLAGS	0x81
#define SONYPI_LCD_LIGHT	0x96
#define SONYPI_BAT1_PCTRM	0xa0
#define SONYPI_BAT1_LEFT	0xa2
#define SONYPI_BAT1_MAXRT	0xa4
#define SONYPI_BAT2_PCTRM	0xa8
#define SONYPI_BAT2_LEFT	0xaa
#define SONYPI_BAT2_MAXRT	0xac
#define SONYPI_BAT1_MAXTK	0xb0
#define SONYPI_BAT1_FULL	0xb2
#define SONYPI_BAT2_MAXTK	0xb8
#define SONYPI_BAT2_FULL	0xba
#define SONYPI_TEMP_STATUS	0xC1

struct sonypi_compat_s {
	struct fasync_struct	*fifo_async;
	struct kfifo		*fifo;
	spinlock_t		fifo_lock;
	wait_queue_head_t	fifo_proc_list;
	atomic_t		open_count;
};
static struct sonypi_compat_s sonypi_compat = {
	.open_count = ATOMIC_INIT(0),
};

static int sonypi_misc_fasync(int fd, struct file *filp, int on)
{
	int retval;

	retval = fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
	if (retval < 0)
		return retval;
	return 0;
}

static int sonypi_misc_release(struct inode *inode, struct file *file)
{
	atomic_dec(&sonypi_compat.open_count);
	return 0;
}

static int sonypi_misc_open(struct inode *inode, struct file *file)
{
	/* Flush input queue on first open */
A
Arnd Bergmann 已提交
1937
	lock_kernel();
1938 1939
	if (atomic_inc_return(&sonypi_compat.open_count) == 1)
		kfifo_reset(sonypi_compat.fifo);
A
Arnd Bergmann 已提交
1940
	unlock_kernel();
1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
	return 0;
}

static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
				size_t count, loff_t *pos)
{
	ssize_t ret;
	unsigned char c;

	if ((kfifo_len(sonypi_compat.fifo) == 0) &&
	    (file->f_flags & O_NONBLOCK))
		return -EAGAIN;

	ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
				       kfifo_len(sonypi_compat.fifo) != 0);
	if (ret)
		return ret;

	while (ret < count &&
	       (kfifo_get(sonypi_compat.fifo, &c, sizeof(c)) == sizeof(c))) {
		if (put_user(c, buf++))
			return -EFAULT;
		ret++;
	}

	if (ret > 0) {
		struct inode *inode = file->f_path.dentry->d_inode;
		inode->i_atime = current_fs_time(inode->i_sb);
	}

	return ret;
}

static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
{
	poll_wait(file, &sonypi_compat.fifo_proc_list, wait);
	if (kfifo_len(sonypi_compat.fifo))
		return POLLIN | POLLRDNORM;
	return 0;
}

static int ec_read16(u8 addr, u16 *value)
{
	u8 val_lb, val_hb;
	if (ec_read(addr, &val_lb))
		return -1;
	if (ec_read(addr + 1, &val_hb))
		return -1;
	*value = val_lb | (val_hb << 8);
	return 0;
}

static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
			     unsigned int cmd, unsigned long arg)
{
	int ret = 0;
	void __user *argp = (void __user *)arg;
	u8 val8;
	u16 val16;
	int value;

2002
	mutex_lock(&spic_dev.lock);
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085
	switch (cmd) {
	case SONYPI_IOCGBRT:
		if (sony_backlight_device == NULL) {
			ret = -EIO;
			break;
		}
		if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
			ret = -EIO;
			break;
		}
		val8 = ((value & 0xff) - 1) << 5;
		if (copy_to_user(argp, &val8, sizeof(val8)))
				ret = -EFAULT;
		break;
	case SONYPI_IOCSBRT:
		if (sony_backlight_device == NULL) {
			ret = -EIO;
			break;
		}
		if (copy_from_user(&val8, argp, sizeof(val8))) {
			ret = -EFAULT;
			break;
		}
		if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
				(val8 >> 5) + 1, NULL)) {
			ret = -EIO;
			break;
		}
		/* sync the backlight device status */
		sony_backlight_device->props.brightness =
		    sony_backlight_get_brightness(sony_backlight_device);
		break;
	case SONYPI_IOCGBAT1CAP:
		if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBAT1REM:
		if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBAT2CAP:
		if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBAT2REM:
		if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBATFLAGS:
		if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
			ret = -EIO;
			break;
		}
		val8 &= 0x07;
		if (copy_to_user(argp, &val8, sizeof(val8)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBLUE:
		val8 = spic_dev.bluetooth_power;
		if (copy_to_user(argp, &val8, sizeof(val8)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCSBLUE:
		if (copy_from_user(&val8, argp, sizeof(val8))) {
			ret = -EFAULT;
			break;
		}
2086
		__sony_pic_set_bluetoothpower(val8);
2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116
		break;
	/* FAN Controls */
	case SONYPI_IOCGFAN:
		if (sony_pic_get_fanspeed(&val8)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val8, sizeof(val8)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCSFAN:
		if (copy_from_user(&val8, argp, sizeof(val8))) {
			ret = -EFAULT;
			break;
		}
		if (sony_pic_set_fanspeed(val8))
			ret = -EIO;
		break;
	/* GET Temperature (useful under APM) */
	case SONYPI_IOCGTEMP:
		if (ec_read(SONYPI_TEMP_STATUS, &val8)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val8, sizeof(val8)))
			ret = -EFAULT;
		break;
	default:
		ret = -EINVAL;
	}
2117
	mutex_unlock(&spic_dev.lock);
2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165
	return ret;
}

static const struct file_operations sonypi_misc_fops = {
	.owner		= THIS_MODULE,
	.read		= sonypi_misc_read,
	.poll		= sonypi_misc_poll,
	.open		= sonypi_misc_open,
	.release	= sonypi_misc_release,
	.fasync		= sonypi_misc_fasync,
	.ioctl		= sonypi_misc_ioctl,
};

static struct miscdevice sonypi_misc_device = {
	.minor		= MISC_DYNAMIC_MINOR,
	.name		= "sonypi",
	.fops		= &sonypi_misc_fops,
};

static void sonypi_compat_report_event(u8 event)
{
	kfifo_put(sonypi_compat.fifo, (unsigned char *)&event, sizeof(event));
	kill_fasync(&sonypi_compat.fifo_async, SIGIO, POLL_IN);
	wake_up_interruptible(&sonypi_compat.fifo_proc_list);
}

static int sonypi_compat_init(void)
{
	int error;

	spin_lock_init(&sonypi_compat.fifo_lock);
	sonypi_compat.fifo = kfifo_alloc(SONY_LAPTOP_BUF_SIZE, GFP_KERNEL,
					 &sonypi_compat.fifo_lock);
	if (IS_ERR(sonypi_compat.fifo)) {
		printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
		return PTR_ERR(sonypi_compat.fifo);
	}

	init_waitqueue_head(&sonypi_compat.fifo_proc_list);

	if (minor != -1)
		sonypi_misc_device.minor = minor;
	error = misc_register(&sonypi_misc_device);
	if (error) {
		printk(KERN_ERR DRV_PFX "misc_register failed\n");
		goto err_free_kfifo;
	}
	if (minor == -1)
2166
		printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183 2184
		       sonypi_misc_device.minor);

	return 0;

err_free_kfifo:
	kfifo_free(sonypi_compat.fifo);
	return error;
}

static void sonypi_compat_exit(void)
{
	misc_deregister(&sonypi_misc_device);
	kfifo_free(sonypi_compat.fifo);
}
#else
static int sonypi_compat_init(void) { return 0; }
static void sonypi_compat_exit(void) { }
static void sonypi_compat_report_event(u8 event) { }
2185
#endif /* CONFIG_SONYPI_COMPAT */
2186

2187
/*
2188
 * ACPI callbacks
2189
 */
2190 2191 2192 2193 2194 2195 2196 2197
static acpi_status
sony_pic_read_possible_resource(struct acpi_resource *resource, void *context)
{
	u32 i;
	struct sony_pic_dev *dev = (struct sony_pic_dev *)context;

	switch (resource->type) {
	case ACPI_RESOURCE_TYPE_START_DEPENDENT:
2198 2199 2200 2201 2202 2203 2204 2205 2206 2207
		{
			/* start IO enumeration */
			struct sony_pic_ioport *ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
			if (!ioport)
				return AE_ERROR;

			list_add(&ioport->list, &dev->ioports);
			return AE_OK;
		}

2208
	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2209
		/* end IO enumeration */
2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235
		return AE_OK;

	case ACPI_RESOURCE_TYPE_IRQ:
		{
			struct acpi_resource_irq *p = &resource->data.irq;
			struct sony_pic_irq *interrupt = NULL;
			if (!p || !p->interrupt_count) {
				/*
				 * IRQ descriptors may have no IRQ# bits set,
				 * particularly those those w/ _STA disabled
				 */
				dprintk("Blank IRQ resource\n");
				return AE_OK;
			}
			for (i = 0; i < p->interrupt_count; i++) {
				if (!p->interrupts[i]) {
					printk(KERN_WARNING DRV_PFX
							"Invalid IRQ %d\n",
							p->interrupts[i]);
					continue;
				}
				interrupt = kzalloc(sizeof(*interrupt),
						GFP_KERNEL);
				if (!interrupt)
					return AE_ERROR;

2236
				list_add(&interrupt->list, &dev->interrupts);
2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247
				interrupt->irq.triggering = p->triggering;
				interrupt->irq.polarity = p->polarity;
				interrupt->irq.sharable = p->sharable;
				interrupt->irq.interrupt_count = 1;
				interrupt->irq.interrupts[0] = p->interrupts[i];
			}
			return AE_OK;
		}
	case ACPI_RESOURCE_TYPE_IO:
		{
			struct acpi_resource_io *io = &resource->data.io;
2248 2249
			struct sony_pic_ioport *ioport =
				list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2250 2251 2252 2253 2254
			if (!io) {
				dprintk("Blank IO resource\n");
				return AE_OK;
			}

2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266
			if (!ioport->io1.minimum) {
				memcpy(&ioport->io1, io, sizeof(*io));
				dprintk("IO1 at 0x%.4x (0x%.2x)\n", ioport->io1.minimum,
						ioport->io1.address_length);
			}
			else if (!ioport->io2.minimum) {
				memcpy(&ioport->io2, io, sizeof(*io));
				dprintk("IO2 at 0x%.4x (0x%.2x)\n", ioport->io2.minimum,
						ioport->io2.address_length);
			}
			else {
				printk(KERN_ERR DRV_PFX "Unknown SPIC Type, more than 2 IO Ports\n");
2267
				return AE_ERROR;
2268
			}
2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323
			return AE_OK;
		}
	default:
		dprintk("Resource %d isn't an IRQ nor an IO port\n",
				resource->type);

	case ACPI_RESOURCE_TYPE_END_TAG:
		return AE_OK;
	}
	return AE_CTRL_TERMINATE;
}

static int sony_pic_possible_resources(struct acpi_device *device)
{
	int result = 0;
	acpi_status status = AE_OK;

	if (!device)
		return -EINVAL;

	/* get device status */
	/* see acpi_pci_link_get_current acpi_pci_link_get_possible */
	dprintk("Evaluating _STA\n");
	result = acpi_bus_get_status(device);
	if (result) {
		printk(KERN_WARNING DRV_PFX "Unable to read status\n");
		goto end;
	}

	if (!device->status.enabled)
		dprintk("Device disabled\n");
	else
		dprintk("Device enabled\n");

	/*
	 * Query and parse 'method'
	 */
	dprintk("Evaluating %s\n", METHOD_NAME__PRS);
	status = acpi_walk_resources(device->handle, METHOD_NAME__PRS,
			sony_pic_read_possible_resource, &spic_dev);
	if (ACPI_FAILURE(status)) {
		printk(KERN_WARNING DRV_PFX
				"Failure evaluating %s\n",
				METHOD_NAME__PRS);
		result = -ENODEV;
	}
end:
	return result;
}

/*
 *  Disable the spic device by calling its _DIS method
 */
static int sony_pic_disable(struct acpi_device *device)
{
2324 2325 2326 2327
	acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
					       NULL);

	if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341 2342 2343 2344
		return -ENXIO;

	dprintk("Device disabled\n");
	return 0;
}


/*
 *  Based on drivers/acpi/pci_link.c:acpi_pci_link_set
 *
 *  Call _SRS to set current resources
 */
static int sony_pic_enable(struct acpi_device *device,
		struct sony_pic_ioport *ioport, struct sony_pic_irq *irq)
{
	acpi_status status;
	int result = 0;
2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355
	/* Type 1 resource layout is:
	 *    IO
	 *    IO
	 *    IRQNoFlags
	 *    End
	 *
	 * Type 2 and 3 resource layout is:
	 *    IO
	 *    IRQNoFlags
	 *    End
	 */
2356
	struct {
2357 2358 2359 2360
		struct acpi_resource res1;
		struct acpi_resource res2;
		struct acpi_resource res3;
		struct acpi_resource res4;
2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374
	} *resource;
	struct acpi_buffer buffer = { 0, NULL };

	if (!ioport || !irq)
		return -EINVAL;

	/* init acpi_buffer */
	resource = kzalloc(sizeof(*resource) + 1, GFP_KERNEL);
	if (!resource)
		return -ENOMEM;

	buffer.length = sizeof(*resource) + 1;
	buffer.pointer = resource;

2375
	/* setup Type 1 resources */
2376
	if (spic_dev.control->model == SONYPI_DEVICE_TYPE1) {
2377

2378 2379 2380 2381 2382
		/* setup io resources */
		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
		resource->res1.length = sizeof(struct acpi_resource);
		memcpy(&resource->res1.data.io, &ioport->io1,
				sizeof(struct acpi_resource_io));
2383

2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417
		resource->res2.type = ACPI_RESOURCE_TYPE_IO;
		resource->res2.length = sizeof(struct acpi_resource);
		memcpy(&resource->res2.data.io, &ioport->io2,
				sizeof(struct acpi_resource_io));

		/* setup irq resource */
		resource->res3.type = ACPI_RESOURCE_TYPE_IRQ;
		resource->res3.length = sizeof(struct acpi_resource);
		memcpy(&resource->res3.data.irq, &irq->irq,
				sizeof(struct acpi_resource_irq));
		/* we requested a shared irq */
		resource->res3.data.irq.sharable = ACPI_SHARED;

		resource->res4.type = ACPI_RESOURCE_TYPE_END_TAG;

	}
	/* setup Type 2/3 resources */
	else {
		/* setup io resource */
		resource->res1.type = ACPI_RESOURCE_TYPE_IO;
		resource->res1.length = sizeof(struct acpi_resource);
		memcpy(&resource->res1.data.io, &ioport->io1,
				sizeof(struct acpi_resource_io));

		/* setup irq resource */
		resource->res2.type = ACPI_RESOURCE_TYPE_IRQ;
		resource->res2.length = sizeof(struct acpi_resource);
		memcpy(&resource->res2.data.irq, &irq->irq,
				sizeof(struct acpi_resource_irq));
		/* we requested a shared irq */
		resource->res2.data.irq.sharable = ACPI_SHARED;

		resource->res3.type = ACPI_RESOURCE_TYPE_END_TAG;
	}
2418 2419 2420 2421 2422 2423 2424

	/* Attempt to set the resource */
	dprintk("Evaluating _SRS\n");
	status = acpi_set_current_resources(device->handle, &buffer);

	/* check for total failure */
	if (ACPI_FAILURE(status)) {
2425
		printk(KERN_ERR DRV_PFX "Error evaluating _SRS\n");
2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453
		result = -ENODEV;
		goto end;
	}

	/* Necessary device initializations calls (from sonypi) */
	sony_pic_call1(0x82);
	sony_pic_call2(0x81, 0xff);
	sony_pic_call1(compat ? 0x92 : 0x82);

end:
	kfree(resource);
	return result;
}

/*****************
 *
 * ISR: some event is available
 *
 *****************/
static irqreturn_t sony_pic_irq(int irq, void *dev_id)
{
	int i, j;
	u8 ev = 0;
	u8 data_mask = 0;
	u8 device_event = 0;

	struct sony_pic_dev *dev = (struct sony_pic_dev *) dev_id;

2454 2455 2456 2457
	ev = inb_p(dev->cur_ioport->io1.minimum);
	if (dev->cur_ioport->io2.minimum)
		data_mask = inb_p(dev->cur_ioport->io2.minimum);
	else
2458 2459
		data_mask = inb_p(dev->cur_ioport->io1.minimum +
				dev->control->evport_offset);
2460

2461
	dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
2462 2463
			ev, data_mask, dev->cur_ioport->io1.minimum,
			dev->control->evport_offset);
2464 2465 2466 2467

	if (ev == 0x00 || ev == 0xff)
		return IRQ_HANDLED;

2468
	for (i = 0; dev->control->event_types[i].mask; i++) {
2469

2470 2471
		if ((data_mask & dev->control->event_types[i].data) !=
		    dev->control->event_types[i].data)
2472 2473
			continue;

2474
		if (!(mask & dev->control->event_types[i].mask))
2475 2476
			continue;

2477 2478
		for (j = 0; dev->control->event_types[i].events[j].event; j++) {
			if (ev == dev->control->event_types[i].events[j].data) {
2479
				device_event =
2480 2481
					dev->control->
						event_types[i].events[j].event;
2482 2483 2484 2485
				goto found;
			}
		}
	}
M
Mattia Dongili 已提交
2486 2487 2488 2489 2490 2491 2492
	/* Still not able to decode the event try to pass
	 * it over to the minidriver
	 */
	if (dev->control->handle_irq &&
			dev->control->handle_irq(data_mask, ev) == 0)
		return IRQ_HANDLED;

2493 2494 2495
	dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
			ev, data_mask, dev->cur_ioport->io1.minimum,
			dev->control->evport_offset);
2496 2497 2498
	return IRQ_HANDLED;

found:
2499
	sony_laptop_report_input_event(device_event);
2500
	acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
2501
	sonypi_compat_report_event(device_event);
2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521

	return IRQ_HANDLED;
}

/*****************
 *
 *  ACPI driver
 *
 *****************/
static int sony_pic_remove(struct acpi_device *device, int type)
{
	struct sony_pic_ioport *io, *tmp_io;
	struct sony_pic_irq *irq, *tmp_irq;

	if (sony_pic_disable(device)) {
		printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
		return -ENXIO;
	}

	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
2522 2523 2524 2525 2526
	release_region(spic_dev.cur_ioport->io1.minimum,
			spic_dev.cur_ioport->io1.address_length);
	if (spic_dev.cur_ioport->io2.minimum)
		release_region(spic_dev.cur_ioport->io2.minimum,
				spic_dev.cur_ioport->io2.address_length);
2527

2528 2529
	sonypi_compat_exit();

2530
	sony_laptop_remove_input();
2531

2532 2533 2534 2535
	/* pf attrs */
	sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
	sony_pf_remove();

2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546
	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
		list_del(&io->list);
		kfree(io);
	}
	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
		list_del(&irq->list);
		kfree(irq);
	}
	spic_dev.cur_ioport = NULL;
	spic_dev.cur_irq = NULL;

2547
	dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2548 2549 2550 2551 2552 2553 2554 2555 2556
	return 0;
}

static int sony_pic_add(struct acpi_device *device)
{
	int result;
	struct sony_pic_ioport *io, *tmp_io;
	struct sony_pic_irq *irq, *tmp_irq;

2557 2558
	printk(KERN_INFO DRV_PFX "%s v%s.\n",
		SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2559 2560 2561

	spic_dev.acpi_dev = device;
	strcpy(acpi_device_class(device), "sony/hotkey");
2562
	sony_pic_detect_device_type(&spic_dev);
2563
	mutex_init(&spic_dev.lock);
2564 2565 2566 2567 2568 2569 2570 2571 2572 2573

	/* read _PRS resources */
	result = sony_pic_possible_resources(device);
	if (result) {
		printk(KERN_ERR DRV_PFX
				"Unabe to read possible resources.\n");
		goto err_free_resources;
	}

	/* setup input devices and helper fifo */
2574
	result = sony_laptop_setup_input(device);
2575 2576 2577 2578 2579 2580
	if (result) {
		printk(KERN_ERR DRV_PFX
				"Unabe to create input devices.\n");
		goto err_free_resources;
	}

2581 2582 2583
	if (sonypi_compat_init())
		goto err_remove_input;

2584
	/* request io port */
2585 2586
	list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
		if (request_region(io->io1.minimum, io->io1.address_length,
2587
					"Sony Programable I/O Device")) {
2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614
			dprintk("I/O port1: 0x%.4x (0x%.4x) + 0x%.2x\n",
					io->io1.minimum, io->io1.maximum,
					io->io1.address_length);
			/* Type 1 have 2 ioports */
			if (io->io2.minimum) {
				if (request_region(io->io2.minimum,
						io->io2.address_length,
						"Sony Programable I/O Device")) {
					dprintk("I/O port2: 0x%.4x (0x%.4x) + 0x%.2x\n",
							io->io2.minimum, io->io2.maximum,
							io->io2.address_length);
					spic_dev.cur_ioport = io;
					break;
				}
				else {
					dprintk("Unable to get I/O port2: "
							"0x%.4x (0x%.4x) + 0x%.2x\n",
							io->io2.minimum, io->io2.maximum,
							io->io2.address_length);
					release_region(io->io1.minimum,
							io->io1.address_length);
				}
			}
			else {
				spic_dev.cur_ioport = io;
				break;
			}
2615 2616 2617 2618 2619
		}
	}
	if (!spic_dev.cur_ioport) {
		printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
		result = -ENODEV;
2620
		goto err_remove_compat;
2621 2622 2623
	}

	/* request IRQ */
2624
	list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649
		if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
					IRQF_SHARED, "sony-laptop", &spic_dev)) {
			dprintk("IRQ: %d - triggering: %d - "
					"polarity: %d - shr: %d\n",
					irq->irq.interrupts[0],
					irq->irq.triggering,
					irq->irq.polarity,
					irq->irq.sharable);
			spic_dev.cur_irq = irq;
			break;
		}
	}
	if (!spic_dev.cur_irq) {
		printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
		result = -ENODEV;
		goto err_release_region;
	}

	/* set resource status _SRS */
	result = sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
	if (result) {
		printk(KERN_ERR DRV_PFX "Couldn't enable device.\n");
		goto err_free_irq;
	}

2650 2651 2652 2653 2654 2655 2656 2657 2658 2659
	spic_dev.bluetooth_power = -1;
	/* create device attributes */
	result = sony_pf_add();
	if (result)
		goto err_disable_device;

	result = sysfs_create_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
	if (result)
		goto err_remove_pf;

2660 2661
	return 0;

2662 2663 2664 2665 2666 2667
err_remove_pf:
	sony_pf_remove();

err_disable_device:
	sony_pic_disable(device);

2668 2669 2670 2671
err_free_irq:
	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);

err_release_region:
2672 2673 2674 2675 2676
	release_region(spic_dev.cur_ioport->io1.minimum,
			spic_dev.cur_ioport->io1.address_length);
	if (spic_dev.cur_ioport->io2.minimum)
		release_region(spic_dev.cur_ioport->io2.minimum,
				spic_dev.cur_ioport->io2.address_length);
2677

2678 2679 2680
err_remove_compat:
	sonypi_compat_exit();

2681
err_remove_input:
2682
	sony_laptop_remove_input();
2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711

err_free_resources:
	list_for_each_entry_safe(io, tmp_io, &spic_dev.ioports, list) {
		list_del(&io->list);
		kfree(io);
	}
	list_for_each_entry_safe(irq, tmp_irq, &spic_dev.interrupts, list) {
		list_del(&irq->list);
		kfree(irq);
	}
	spic_dev.cur_ioport = NULL;
	spic_dev.cur_irq = NULL;

	return result;
}

static int sony_pic_suspend(struct acpi_device *device, pm_message_t state)
{
	if (sony_pic_disable(device))
		return -ENXIO;
	return 0;
}

static int sony_pic_resume(struct acpi_device *device)
{
	sony_pic_enable(device, spic_dev.cur_ioport, spic_dev.cur_irq);
	return 0;
}

2712 2713 2714 2715 2716
static const struct acpi_device_id sony_pic_device_ids[] = {
	{SONY_PIC_HID, 0},
	{"", 0},
};

2717 2718 2719
static struct acpi_driver sony_pic_driver = {
	.name = SONY_PIC_DRIVER_NAME,
	.class = SONY_PIC_CLASS,
2720
	.ids = sony_pic_device_ids,
2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747
	.owner = THIS_MODULE,
	.ops = {
		.add = sony_pic_add,
		.remove = sony_pic_remove,
		.suspend = sony_pic_suspend,
		.resume = sony_pic_resume,
		},
};

static struct dmi_system_id __initdata sonypi_dmi_table[] = {
	{
		.ident = "Sony Vaio",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "PCG-"),
		},
	},
	{
		.ident = "Sony Vaio",
		.matches = {
			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-"),
		},
	},
	{ }
};

2748
static int __init sony_laptop_init(void)
2749
{
2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773
	int result;

	if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
		result = acpi_bus_register_driver(&sony_pic_driver);
		if (result) {
			printk(KERN_ERR DRV_PFX
					"Unable to register SPIC driver.");
			goto out;
		}
	}

	result = acpi_bus_register_driver(&sony_nc_driver);
	if (result) {
		printk(KERN_ERR DRV_PFX "Unable to register SNC driver.");
		goto out_unregister_pic;
	}

	return 0;

out_unregister_pic:
	if (!no_spic)
		acpi_bus_unregister_driver(&sony_pic_driver);
out:
	return result;
2774 2775
}

2776
static void __exit sony_laptop_exit(void)
2777
{
2778
	acpi_bus_unregister_driver(&sony_nc_driver);
2779 2780
	if (!no_spic)
		acpi_bus_unregister_driver(&sony_pic_driver);
2781 2782
}

2783 2784
module_init(sony_laptop_init);
module_exit(sony_laptop_exit);