sony-laptop.c 86.6 KB
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/*
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 * ACPI Sony Notebook Control Driver (SNC and SPIC)
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 *
 * Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
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 * Copyright (C) 2007-2009 Mattia Dongili <malattia@linux.it>
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 *
 * Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
 * which are copyrighted by their respective authors.
 *
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 * 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>
 *
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 * Copyright (C) 2001-2002 Alcôve <www.alcove.com>
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 *
 * 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.
 *
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 * 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.
 *
 */

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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

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#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/types.h>
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#include <linux/backlight.h>
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#include <linux/platform_device.h>
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#include <linux/err.h>
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#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>
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#include <linux/slab.h>
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#include <acpi/acpi_drivers.h>
#include <acpi/acpi_bus.h>
#include <asm/uaccess.h>
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#include <linux/sonypi.h>
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#include <linux/sony-laptop.h>
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#include <linux/rfkill.h>
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#ifdef CONFIG_SONYPI_COMPAT
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#include <linux/poll.h>
#include <linux/miscdevice.h>
#endif
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#define dprintk(fmt, ...)			\
do {						\
	if (debug)				\
		pr_warn(fmt, ##__VA_ARGS__);	\
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} while (0)

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#define SONY_LAPTOP_DRIVER_VERSION	"0.6"
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#define SONY_NC_CLASS		"sony-nc"
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#define SONY_NC_HID		"SNY5001"
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#define SONY_NC_DRIVER_NAME	"Sony Notebook Control Driver"
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#define SONY_PIC_CLASS		"sony-pic"
#define SONY_PIC_HID		"SNY6001"
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#define SONY_PIC_DRIVER_NAME	"Sony Programmable IO Control Driver"
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MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
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MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
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static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
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		 "the development of this driver");
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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,
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		 "set this if you want to enable backward compatibility mode");
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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)");

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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)");

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#ifdef CONFIG_SONYPI_COMPAT
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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

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static int kbd_backlight = 1;
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module_param(kbd_backlight, int, 0444);
MODULE_PARM_DESC(kbd_backlight,
		 "set this to 0 to disable keyboard backlight, "
		 "1 to enable it (default: 0)");

static int kbd_backlight_timeout;	/* = 0 */
module_param(kbd_backlight_timeout, int, 0444);
MODULE_PARM_DESC(kbd_backlight_timeout,
		 "set this to 0 to set the default 10 seconds timeout, "
		 "1 for 30 seconds, 2 for 60 seconds and 3 to disable timeout "
		 "(default: 0)");

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static void sony_nc_kbd_backlight_resume(void);

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enum sony_nc_rfkill {
	SONY_WIFI,
	SONY_BLUETOOTH,
	SONY_WWAN,
	SONY_WIMAX,
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	N_SONY_RFKILL,
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};

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static int sony_rfkill_handle;
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static struct rfkill *sony_rfkill_devices[N_SONY_RFKILL];
static int sony_rfkill_address[N_SONY_RFKILL] = {0x300, 0x500, 0x700, 0x900};
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static void sony_nc_rfkill_update(void);

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/*********** 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;
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	struct kfifo		fifo;
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	spinlock_t		fifo_lock;
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	struct timer_list	release_key_timer;
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};
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static struct sony_laptop_input_s sony_laptop_input = {
	.users = ATOMIC_INIT(0),
};

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

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/* Correspondance table between sonypi events
 * and input layer indexes in the keymap
 */
static int sony_laptop_input_index[] = {
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	-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 */
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	51,	/* 64 SONYPI_EVENT_CD_EJECT_PRESSED */
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	52,	/* 65 SONYPI_EVENT_MODEKEY_PRESSED */
	53,	/* 66 SONYPI_EVENT_PKEY_P4 */
	54,	/* 67 SONYPI_EVENT_PKEY_P5 */
	55,	/* 68 SONYPI_EVENT_SETTINGKEY_PRESSED */
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	56,	/* 69 SONYPI_EVENT_VOLUME_INC_PRESSED */
	57,	/* 70 SONYPI_EVENT_VOLUME_DEC_PRESSED */
	-1,	/* 71 SONYPI_EVENT_BRIGHTNESS_PRESSED */
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	58,	/* 72 SONYPI_EVENT_MEDIA_PRESSED */
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	59,	/* 72 SONYPI_EVENT_VENDOR_PRESSED */
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};

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 */
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	KEY_ZOOMIN,	/* 49 SONYPI_EVENT_ZOOM_IN_PRESSED */
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	KEY_ZOOMOUT,	/* 50 SONYPI_EVENT_ZOOM_OUT_PRESSED */
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	KEY_EJECTCD,	/* 51 SONYPI_EVENT_CD_EJECT_PRESSED */
	KEY_F13,	/* 52 SONYPI_EVENT_MODEKEY_PRESSED */
	KEY_PROG4,	/* 53 SONYPI_EVENT_PKEY_P4 */
	KEY_F14,	/* 54 SONYPI_EVENT_PKEY_P5 */
	KEY_F15,	/* 55 SONYPI_EVENT_SETTINGKEY_PRESSED */
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	KEY_VOLUMEUP,	/* 56 SONYPI_EVENT_VOLUME_INC_PRESSED */
	KEY_VOLUMEDOWN,	/* 57 SONYPI_EVENT_VOLUME_DEC_PRESSED */
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	KEY_MEDIA,	/* 58 SONYPI_EVENT_MEDIA_PRESSED */
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	KEY_VENDOR,	/* 59 SONYPI_EVENT_VENDOR_PRESSED */
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};

/* release buttons after a short delay if pressed */
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static void do_sony_laptop_release_key(unsigned long unused)
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{
	struct sony_laptop_keypress kp;
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	unsigned long flags;
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	spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);

	if (kfifo_out(&sony_laptop_input.fifo,
		      (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
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		input_report_key(kp.dev, kp.key, 0);
		input_sync(kp.dev);
	}
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	/* If there is something in the fifo schedule next release. */
	if (kfifo_len(&sony_laptop_input.fifo) != 0)
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		mod_timer(&sony_laptop_input.release_key_timer,
			  jiffies + msecs_to_jiffies(10));
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	spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
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}

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/* forward event to the input subsystem */
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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 };
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	int scancode = -1;
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	if (event == SONYPI_EVENT_FNKEY_RELEASED ||
			event == SONYPI_EVENT_ANYBUTTON_RELEASED) {
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		/* 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:
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		if (event >= ARRAY_SIZE(sony_laptop_input_index)) {
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			dprintk("sony_laptop_report_input_event, event not known: %d\n", event);
			break;
		}
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		if ((scancode = sony_laptop_input_index[event]) != -1) {
			kp.key = sony_laptop_input_keycode_map[scancode];
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			if (kp.key != KEY_UNKNOWN)
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				kp.dev = key_dev;
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		}
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		break;
	}

	if (kp.dev) {
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		/* if we have a scancode we emit it so we can always
		    remap the key */
		if (scancode != -1)
			input_event(kp.dev, EV_MSC, MSC_SCAN, scancode);
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		input_report_key(kp.dev, kp.key, 1);
		input_sync(kp.dev);

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		/* schedule key release */
		kfifo_in_locked(&sony_laptop_input.fifo,
				(unsigned char *)&kp, sizeof(kp),
				&sony_laptop_input.fifo_lock);
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		mod_timer(&sony_laptop_input.release_key_timer,
			  jiffies + msecs_to_jiffies(10));
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	} else
		dprintk("unknown input event %.2x\n", event);
}

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static int sony_laptop_setup_input(struct acpi_device *acpi_device)
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{
	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);
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	error = kfifo_alloc(&sony_laptop_input.fifo,
			    SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
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	if (error) {
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		pr_err("kfifo_alloc failed\n");
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		goto err_dec_users;
	}

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	setup_timer(&sony_laptop_input.release_key_timer,
		    do_sony_laptop_release_key, 0);
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	/* input keys */
	key_dev = input_allocate_device();
	if (!key_dev) {
		error = -ENOMEM;
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		goto err_free_kfifo;
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	}

	key_dev->name = "Sony Vaio Keys";
	key_dev->id.bustype = BUS_ISA;
	key_dev->id.vendor = PCI_VENDOR_ID_SONY;
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	key_dev->dev.parent = &acpi_device->dev;
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	/* Initialize the Input Drivers: special keys */
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	input_set_capability(key_dev, EV_MSC, MSC_SCAN);

	__set_bit(EV_KEY, key_dev->evbit);
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	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;
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	for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
		__set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
	__clear_bit(KEY_RESERVED, key_dev->keybit);
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	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;
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	jog_dev->dev.parent = &acpi_device->dev;
473

474 475
	input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
	input_set_capability(jog_dev, EV_REL, REL_WHEEL);
476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496

	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_free_kfifo:
497
	kfifo_free(&sony_laptop_input.fifo);
498 499 500 501 502 503 504 505

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

static void sony_laptop_remove_input(void)
{
506 507 508
	struct sony_laptop_keypress kp = { NULL };

	/* Cleanup only after the last user has gone */
509 510 511
	if (!atomic_dec_and_test(&sony_laptop_input.users))
		return;

512
	del_timer_sync(&sony_laptop_input.release_key_timer);
513 514 515 516 517 518 519 520 521 522

	/*
	 * Generate key-up events for remaining keys. Note that we don't
	 * need locking since nobody is adding new events to the kfifo.
	 */
	while (kfifo_out(&sony_laptop_input.fifo,
			 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
		input_report_key(kp.dev, kp.key, 0);
		input_sync(kp.dev);
	}
523 524 525 526 527 528 529 530 531 532

	/* 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;
	}

533
	kfifo_free(&sony_laptop_input.fifo);
534 535
}

536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586
/*********** 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;

587
	platform_device_unregister(sony_pf_device);
588 589 590 591 592
	platform_driver_unregister(&sony_pf_driver);
}

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

593 594 595 596 597 598 599
/* 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

600
static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
L
Len Brown 已提交
601
			      char *);
602
static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
L
Len Brown 已提交
603
			       const char *, size_t);
604 605 606
static int boolean_validate(const int, const int);
static int brightness_default_validate(const int, const int);

607
struct sony_nc_value {
L
Len Brown 已提交
608 609 610
	char *name;		/* name of the entry */
	char **acpiget;		/* names of the ACPI get function */
	char **acpiset;		/* names of the ACPI set function */
611
	int (*validate)(const int, const int);	/* input/output validation */
L
Len Brown 已提交
612 613 614
	int value;		/* current setting */
	int valid;		/* Has ever been set */
	int debug;		/* active only in debug mode ? */
615
	struct device_attribute devattr;	/* sysfs attribute */
616 617
};

618
#define SNC_HANDLE_NAMES(_name, _values...) \
619 620
	static char *snc_##_name[] = { _values, NULL }

621
#define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
622 623 624 625
	{ \
		.name		= __stringify(_name), \
		.acpiget	= _getters, \
		.acpiset	= _setters, \
626
		.validate	= _validate, \
627
		.debug		= _debug, \
628
		.devattr	= __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
629
	}
630

631
#define SNC_HANDLE_NULL	{ .name = NULL }
632

633
SNC_HANDLE_NAMES(fnkey_get, "GHKE");
634

635 636
SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
637

638 639
SNC_HANDLE_NAMES(cdpower_get, "GCDP");
SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
640

641 642
SNC_HANDLE_NAMES(audiopower_get, "GAZP");
SNC_HANDLE_NAMES(audiopower_set, "AZPW");
643

644 645
SNC_HANDLE_NAMES(lanpower_get, "GLNP");
SNC_HANDLE_NAMES(lanpower_set, "LNPW");
646

647 648 649 650 651 652 653 654
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");

655
SNC_HANDLE_NAMES(PID_get, "GPID");
656

657 658
SNC_HANDLE_NAMES(CTR_get, "GCTR");
SNC_HANDLE_NAMES(CTR_set, "SCTR");
659

660 661
SNC_HANDLE_NAMES(PCR_get, "GPCR");
SNC_HANDLE_NAMES(PCR_set, "SPCR");
662

663 664
SNC_HANDLE_NAMES(CMI_get, "GCMI");
SNC_HANDLE_NAMES(CMI_set, "SCMI");
665

666 667
static struct sony_nc_value sony_nc_values[] = {
	SNC_HANDLE(brightness_default, snc_brightness_def_get,
668
			snc_brightness_def_set, brightness_default_validate, 0),
669 670 671
	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,
672
			boolean_validate, 0),
673
	SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
674
			boolean_validate, 1),
675 676 677 678 679 680
	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),
681
	/* unknown methods */
682 683 684 685 686
	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
687 688
};

689 690
static acpi_handle sony_nc_acpi_handle;
static struct acpi_device *sony_nc_acpi_device = NULL;
691

692 693
/*
 * acpi_evaluate_object wrappers
694 695
 * all useful calls into SNC methods take one or zero parameters and return
 * integers or arrays.
696
 */
697 698
static union acpi_object *__call_snc_method(acpi_handle handle, char *method,
		u64 *value)
699
{
700 701
	union acpi_object *result = NULL;
	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
702 703
	acpi_status status;

704 705 706 707 708 709 710 711 712 713
	if (value) {
		struct acpi_object_list params;
		union acpi_object in;
		in.type = ACPI_TYPE_INTEGER;
		in.integer.value = *value;
		params.count = 1;
		params.pointer = &in;
		status = acpi_evaluate_object(handle, method, &params, &output);
	} else
		status = acpi_evaluate_object(handle, method, NULL, &output);
714

715 716 717
	if (ACPI_FAILURE(status)) {
		pr_err("Failed to evaluate [%s]\n", method);
		return NULL;
718 719
	}

720 721 722
	result = (union acpi_object *) output.pointer;
	if (!result)
		dprintk("No return object [%s]\n", method);
723

724
	return result;
725 726
}

727 728
static int sony_nc_int_call(acpi_handle handle, char *name, int *value,
		int *result)
729
{
730 731 732 733 734 735
	union acpi_object *object = NULL;
	if (value) {
		u64 v = *value;
		object = __call_snc_method(handle, name, &v);
	} else
		object = __call_snc_method(handle, name, NULL);
736

737 738
	if (!object)
		return -EINVAL;
739

740 741 742 743 744
	if (object->type != ACPI_TYPE_INTEGER) {
		pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
				ACPI_TYPE_INTEGER, object->type);
		kfree(object);
		return -EINVAL;
745 746
	}

747 748
	if (result)
		*result = object->integer.value;
749

750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779
	kfree(object);
	return 0;
}

#define MIN(a, b)	(a > b ? b : a)
static int sony_nc_buffer_call(acpi_handle handle, char *name, u64 *value,
		void *buffer, size_t buflen)
{
	size_t len = len;
	union acpi_object *object = __call_snc_method(handle, name, value);

	if (!object)
		return -EINVAL;

	if (object->type == ACPI_TYPE_BUFFER)
		len = MIN(buflen, object->buffer.length);

	else if (object->type == ACPI_TYPE_INTEGER)
		len = MIN(buflen, sizeof(object->integer.value));

	else {
		pr_warn("Invalid acpi_object: expected 0x%x got 0x%x\n",
				ACPI_TYPE_BUFFER, object->type);
		kfree(object);
		return -EINVAL;
	}

	memcpy(buffer, object->buffer.pointer, len);
	kfree(object);
	return 0;
780 781
}

782 783 784 785 786
struct sony_nc_handles {
	u16 cap[0x10];
	struct device_attribute devattr;
};

787
static struct sony_nc_handles *handles;
788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804

static ssize_t sony_nc_handles_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	ssize_t len = 0;
	int i;

	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
		len += snprintf(buffer + len, PAGE_SIZE - len, "0x%.4x ",
				handles->cap[i]);
	}
	len += snprintf(buffer + len, PAGE_SIZE - len, "\n");

	return len;
}

static int sony_nc_handles_setup(struct platform_device *pd)
805
{
806
	int i, r, result, arg;
807

808
	handles = kzalloc(sizeof(*handles), GFP_KERNEL);
809 810
	if (!handles)
		return -ENOMEM;
811 812

	for (i = 0; i < ARRAY_SIZE(handles->cap); i++) {
813 814 815 816
		arg = i + 0x20;
		r = sony_nc_int_call(sony_nc_acpi_handle, "SN00", &arg,
					&result);
		if (!r) {
817 818 819
			dprintk("caching handle 0x%.4x (offset: 0x%.2x)\n",
					result, i);
			handles->cap[i] = result;
820
		}
821 822
	}

823 824 825 826 827 828 829 830 831 832 833 834
	if (debug) {
		sysfs_attr_init(&handles->devattr.attr);
		handles->devattr.attr.name = "handles";
		handles->devattr.attr.mode = S_IRUGO;
		handles->devattr.show = sony_nc_handles_show;

		/* allow reading capabilities via sysfs */
		if (device_create_file(&pd->dev, &handles->devattr)) {
			kfree(handles);
			handles = NULL;
			return -1;
		}
835 836 837 838 839 840 841 842
	}

	return 0;
}

static int sony_nc_handles_cleanup(struct platform_device *pd)
{
	if (handles) {
843 844
		if (debug)
			device_remove_file(&pd->dev, &handles->devattr);
845 846 847 848 849 850 851 852 853
		kfree(handles);
		handles = NULL;
	}
	return 0;
}

static int sony_find_snc_handle(int handle)
{
	int i;
854 855 856 857 858

	/* not initialized yet, return early */
	if (!handles)
		return -1;

859 860 861 862 863 864 865
	for (i = 0; i < 0x10; i++) {
		if (handles->cap[i] == handle) {
			dprintk("found handle 0x%.4x (offset: 0x%.2x)\n",
					handle, i);
			return i;
		}
	}
866
	dprintk("handle 0x%.4x not found\n", handle);
867 868 869 870 871
	return -1;
}

static int sony_call_snc_handle(int handle, int argument, int *result)
{
872
	int arg, ret = 0;
873 874 875 876 877
	int offset = sony_find_snc_handle(handle);

	if (offset < 0)
		return -1;

878 879 880
	arg = offset | argument;
	ret = sony_nc_int_call(sony_nc_acpi_handle, "SN07", &arg, result);
	dprintk("called SN07 with 0x%.4x (result: 0x%.4x)\n", arg, *result);
881
	return ret;
882 883
}

884
/*
885
 * sony_nc_values input/output validate functions
886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918
 */

/* 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;
}

919
/*
920
 * Sysfs show/store common to all sony_nc_values
921
 */
922
static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
L
Len Brown 已提交
923
			      char *buffer)
924
{
925
	int value, ret = 0;
926 927
	struct sony_nc_value *item =
	    container_of(attr, struct sony_nc_value, devattr);
928

929
	if (!*item->acpiget)
930 931
		return -EIO;

932 933 934
	ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiget, NULL,
				&value);
	if (ret < 0)
935 936
		return -EIO;

937 938 939
	if (item->validate)
		value = item->validate(SNC_VALIDATE_OUT, value);

940
	return snprintf(buffer, PAGE_SIZE, "%d\n", value);
941 942
}

943
static ssize_t sony_nc_sysfs_store(struct device *dev,
L
Len Brown 已提交
944 945
			       struct device_attribute *attr,
			       const char *buffer, size_t count)
946
{
947
	int value, ret = 0;
948 949
	struct sony_nc_value *item =
	    container_of(attr, struct sony_nc_value, devattr);
950 951 952 953

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

954 955 956 957
	if (count > 31)
		return -EINVAL;

	value = simple_strtoul(buffer, NULL, 10);
958

959 960 961 962 963
	if (item->validate)
		value = item->validate(SNC_VALIDATE_IN, value);

	if (value < 0)
		return value;
964

965 966 967
	ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset, &value,
			NULL);
	if (ret < 0)
968
		return -EIO;
969

970 971
	item->value = value;
	item->valid = 1;
972 973 974
	return count;
}

975

976 977 978
/*
 * Backlight device
 */
979 980 981 982 983 984 985 986
struct sony_backlight_props {
	struct backlight_device *dev;
	int			handle;
	u8			offset;
	u8			maxlvl;
};
struct sony_backlight_props sony_bl_props;

987
static int sony_backlight_update_status(struct backlight_device *bd)
988
{
989 990
	int arg = bd->props.brightness + 1;
	return sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &arg, NULL);
991
}
992

993 994 995
static int sony_backlight_get_brightness(struct backlight_device *bd)
{
	int value;
996

997
	if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL, &value))
998 999 1000
		return 0;
	/* brightness levels are 1-based, while backlight ones are 0-based */
	return value - 1;
1001 1002
}

1003 1004 1005
static int sony_nc_get_brightness_ng(struct backlight_device *bd)
{
	int result;
1006 1007
	struct sony_backlight_props *sdev =
		(struct sony_backlight_props *)bl_get_data(bd);
1008

1009
	sony_call_snc_handle(sdev->handle, 0x0200, &result);
1010

1011
	return (result & 0xff) - sdev->offset;
1012 1013 1014 1015 1016
}

static int sony_nc_update_status_ng(struct backlight_device *bd)
{
	int value, result;
1017 1018
	struct sony_backlight_props *sdev =
		(struct sony_backlight_props *)bl_get_data(bd);
1019

1020 1021
	value = bd->props.brightness + sdev->offset;
	if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result))
1022
		return -EIO;
1023

1024
	return value;
1025 1026
}

L
Lionel Debroux 已提交
1027
static const struct backlight_ops sony_backlight_ops = {
1028
	.options = BL_CORE_SUSPENDRESUME,
L
Len Brown 已提交
1029 1030
	.update_status = sony_backlight_update_status,
	.get_brightness = sony_backlight_get_brightness,
1031
};
1032 1033 1034 1035 1036
static const struct backlight_ops sony_backlight_ng_ops = {
	.options = BL_CORE_SUSPENDRESUME,
	.update_status = sony_nc_update_status_ng,
	.get_brightness = sony_nc_get_brightness_ng,
};
1037

1038 1039 1040 1041 1042 1043 1044 1045
/*
 * New SNC-only Vaios event mapping to driver known keys
 */
struct sony_nc_event {
	u8	data;
	u8	event;
};

1046
static struct sony_nc_event sony_100_events[] = {
1047 1048
	{ 0x90, SONYPI_EVENT_PKEY_P1 },
	{ 0x10, SONYPI_EVENT_ANYBUTTON_RELEASED },
1049
	{ 0x91, SONYPI_EVENT_PKEY_P2 },
1050
	{ 0x11, SONYPI_EVENT_ANYBUTTON_RELEASED },
1051 1052
	{ 0x81, SONYPI_EVENT_FNKEY_F1 },
	{ 0x01, SONYPI_EVENT_FNKEY_RELEASED },
1053 1054 1055 1056 1057 1058
	{ 0x82, SONYPI_EVENT_FNKEY_F2 },
	{ 0x02, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x83, SONYPI_EVENT_FNKEY_F3 },
	{ 0x03, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x84, SONYPI_EVENT_FNKEY_F4 },
	{ 0x04, SONYPI_EVENT_FNKEY_RELEASED },
1059 1060 1061 1062 1063 1064
	{ 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 },
1065 1066
	{ 0x89, SONYPI_EVENT_FNKEY_F9 },
	{ 0x09, SONYPI_EVENT_FNKEY_RELEASED },
1067 1068 1069 1070
	{ 0x8A, SONYPI_EVENT_FNKEY_F10 },
	{ 0x0A, SONYPI_EVENT_FNKEY_RELEASED },
	{ 0x8C, SONYPI_EVENT_FNKEY_F12 },
	{ 0x0C, SONYPI_EVENT_FNKEY_RELEASED },
1071 1072
	{ 0x9d, SONYPI_EVENT_ZOOM_PRESSED },
	{ 0x1d, SONYPI_EVENT_ANYBUTTON_RELEASED },
1073 1074
	{ 0x9f, SONYPI_EVENT_CD_EJECT_PRESSED },
	{ 0x1f, SONYPI_EVENT_ANYBUTTON_RELEASED },
1075 1076
	{ 0xa1, SONYPI_EVENT_MEDIA_PRESSED },
	{ 0x21, SONYPI_EVENT_ANYBUTTON_RELEASED },
1077 1078 1079 1080 1081 1082
	{ 0xa4, SONYPI_EVENT_CD_EJECT_PRESSED },
	{ 0x24, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0xa5, SONYPI_EVENT_VENDOR_PRESSED },
	{ 0x25, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0xa6, SONYPI_EVENT_HELP_PRESSED },
	{ 0x26, SONYPI_EVENT_ANYBUTTON_RELEASED },
1083 1084 1085
	{ 0, 0 },
};

1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103
static struct sony_nc_event sony_127_events[] = {
	{ 0x81, SONYPI_EVENT_MODEKEY_PRESSED },
	{ 0x01, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0x82, SONYPI_EVENT_PKEY_P1 },
	{ 0x02, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0x83, SONYPI_EVENT_PKEY_P2 },
	{ 0x03, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0x84, SONYPI_EVENT_PKEY_P3 },
	{ 0x04, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0x85, SONYPI_EVENT_PKEY_P4 },
	{ 0x05, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0x86, SONYPI_EVENT_PKEY_P5 },
	{ 0x06, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0x87, SONYPI_EVENT_SETTINGKEY_PRESSED },
	{ 0x07, SONYPI_EVENT_ANYBUTTON_RELEASED },
	{ 0, 0 },
};

1104 1105 1106
/*
 * ACPI callbacks
 */
1107
static void sony_nc_notify(struct acpi_device *device, u32 event)
1108
{
1109 1110
	u32 ev = event;

1111 1112
	if (ev >= 0x90) {
		/* New-style event */
1113
		int result;
1114
		int key_handle = 0;
1115 1116
		ev -= 0x90;

1117 1118 1119 1120 1121
		if (sony_find_snc_handle(0x100) == ev)
			key_handle = 0x100;
		if (sony_find_snc_handle(0x127) == ev)
			key_handle = 0x127;

1122
		if (key_handle) {
1123
			struct sony_nc_event *key_event;
1124

1125
			if (sony_call_snc_handle(key_handle, 0x200, &result)) {
1126
				dprintk("sony_nc_notify, unable to decode"
1127 1128
					" event 0x%.2x 0x%.2x\n", key_handle,
					ev);
1129 1130 1131
				/* restore the original event */
				ev = event;
			} else {
1132 1133
				ev = result & 0xFF;

1134 1135 1136 1137
				if (key_handle == 0x100)
					key_event = sony_100_events;
				else
					key_event = sony_127_events;
1138

1139 1140 1141 1142 1143
				for (; key_event->data; key_event++) {
					if (key_event->data == ev) {
						ev = key_event->event;
						break;
					}
1144
				}
1145

1146
				if (!key_event->data)
1147 1148
					pr_info("Unknown event: 0x%x 0x%x\n",
						key_handle, ev);
1149 1150
				else
					sony_laptop_report_input_event(ev);
1151
			}
1152
		} else if (sony_find_snc_handle(sony_rfkill_handle) == ev) {
1153 1154
			sony_nc_rfkill_update();
			return;
1155
		}
1156 1157
	} else
		sony_laptop_report_input_event(ev);
1158

1159
	dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
1160
	acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
1161 1162 1163 1164 1165
}

static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
				      void *context, void **return_value)
{
1166
	struct acpi_device_info *info;
1167

1168
	if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) {
1169
		pr_warn("method: name: %4.4s, args %X\n",
1170 1171
			(char *)&info->name, info->param_count);

1172
		kfree(info);
1173
	}
1174 1175 1176 1177

	return AE_OK;
}

1178 1179 1180
/*
 * ACPI device
 */
1181 1182
static int sony_nc_function_setup(struct acpi_device *device)
{
1183
	int result, arg;
1184 1185

	/* Enable all events */
1186 1187
	arg = 0xffff;
	sony_nc_int_call(sony_nc_acpi_handle, "SN02", &arg, &result);
1188 1189 1190 1191 1192

	/* Setup hotkeys */
	sony_call_snc_handle(0x0100, 0, &result);
	sony_call_snc_handle(0x0101, 0, &result);
	sony_call_snc_handle(0x0102, 0x100, &result);
1193
	sony_call_snc_handle(0x0127, 0, &result);
1194 1195 1196 1197

	return 0;
}

1198
static int sony_nc_resume(struct acpi_device *device)
1199
{
1200
	struct sony_nc_value *item;
1201
	acpi_handle handle;
1202

1203
	for (item = sony_nc_values; item->name; item++) {
1204 1205 1206 1207
		int ret;

		if (!item->valid)
			continue;
1208 1209
		ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset,
				       &item->value, NULL);
1210
		if (ret < 0) {
1211
			pr_err("%s: %d\n", __func__, ret);
1212 1213 1214
			break;
		}
	}
1215

1216 1217
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
					 &handle))) {
1218 1219
		int arg = 1;
		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1220 1221 1222
			dprintk("ECON Method failed\n");
	}

1223 1224 1225 1226 1227 1228
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
					 &handle))) {
		dprintk("Doing SNC setup\n");
		sony_nc_function_setup(device);
	}

1229 1230 1231
	/* re-read rfkill state */
	sony_nc_rfkill_update();

1232 1233 1234
	/* restore kbd backlight states */
	sony_nc_kbd_backlight_resume();

1235 1236 1237
	return 0;
}

1238 1239 1240 1241
static void sony_nc_rfkill_cleanup(void)
{
	int i;

J
Johannes Berg 已提交
1242 1243
	for (i = 0; i < N_SONY_RFKILL; i++) {
		if (sony_rfkill_devices[i]) {
1244
			rfkill_unregister(sony_rfkill_devices[i]);
J
Johannes Berg 已提交
1245 1246
			rfkill_destroy(sony_rfkill_devices[i]);
		}
1247 1248 1249
	}
}

J
Johannes Berg 已提交
1250
static int sony_nc_rfkill_set(void *data, bool blocked)
1251 1252 1253 1254
{
	int result;
	int argument = sony_rfkill_address[(long) data] + 0x100;

J
Johannes Berg 已提交
1255
	if (!blocked)
1256
		argument |= 0x030000;
1257

1258
	return sony_call_snc_handle(sony_rfkill_handle, argument, &result);
1259 1260
}

J
Johannes Berg 已提交
1261 1262 1263
static const struct rfkill_ops sony_rfkill_ops = {
	.set_block = sony_nc_rfkill_set,
};
1264

J
Johannes Berg 已提交
1265 1266
static int sony_nc_setup_rfkill(struct acpi_device *device,
				enum sony_nc_rfkill nc_type)
1267 1268
{
	int err = 0;
J
Johannes Berg 已提交
1269 1270 1271
	struct rfkill *rfk;
	enum rfkill_type type;
	const char *name;
1272
	int result;
1273
	bool hwblock, swblock;
J
Johannes Berg 已提交
1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293

	switch (nc_type) {
	case SONY_WIFI:
		type = RFKILL_TYPE_WLAN;
		name = "sony-wifi";
		break;
	case SONY_BLUETOOTH:
		type = RFKILL_TYPE_BLUETOOTH;
		name = "sony-bluetooth";
		break;
	case SONY_WWAN:
		type = RFKILL_TYPE_WWAN;
		name = "sony-wwan";
		break;
	case SONY_WIMAX:
		type = RFKILL_TYPE_WIMAX;
		name = "sony-wimax";
		break;
	default:
		return -EINVAL;
1294
	}
1295

J
Johannes Berg 已提交
1296 1297 1298 1299
	rfk = rfkill_alloc(name, &device->dev, type,
			   &sony_rfkill_ops, (void *)nc_type);
	if (!rfk)
		return -ENOMEM;
1300

1301 1302 1303 1304
	if (sony_call_snc_handle(sony_rfkill_handle, 0x200, &result) < 0) {
		rfkill_destroy(rfk);
		return -1;
	}
1305
	hwblock = !(result & 0x1);
1306 1307 1308 1309 1310 1311 1312 1313 1314 1315

	if (sony_call_snc_handle(sony_rfkill_handle,
				sony_rfkill_address[nc_type],
				&result) < 0) {
		rfkill_destroy(rfk);
		return -1;
	}
	swblock = !(result & 0x2);

	rfkill_init_sw_state(rfk, swblock);
1316 1317
	rfkill_set_hw_state(rfk, hwblock);

J
Johannes Berg 已提交
1318 1319 1320 1321
	err = rfkill_register(rfk);
	if (err) {
		rfkill_destroy(rfk);
		return err;
1322
	}
J
Johannes Berg 已提交
1323
	sony_rfkill_devices[nc_type] = rfk;
1324 1325 1326
	return err;
}

1327
static void sony_nc_rfkill_update(void)
1328
{
J
Johannes Berg 已提交
1329 1330 1331
	enum sony_nc_rfkill i;
	int result;
	bool hwblock;
1332

1333
	sony_call_snc_handle(sony_rfkill_handle, 0x200, &result);
J
Johannes Berg 已提交
1334
	hwblock = !(result & 0x1);
1335

J
Johannes Berg 已提交
1336 1337
	for (i = 0; i < N_SONY_RFKILL; i++) {
		int argument = sony_rfkill_address[i];
1338

J
Johannes Berg 已提交
1339 1340 1341 1342
		if (!sony_rfkill_devices[i])
			continue;

		if (hwblock) {
J
Johannes Berg 已提交
1343 1344 1345
			if (rfkill_set_hw_state(sony_rfkill_devices[i], true)) {
				/* we already know we're blocked */
			}
J
Johannes Berg 已提交
1346
			continue;
1347
		}
J
Johannes Berg 已提交
1348

1349
		sony_call_snc_handle(sony_rfkill_handle, argument, &result);
J
Johannes Berg 已提交
1350
		rfkill_set_states(sony_rfkill_devices[i],
1351
				  !(result & 0x2), false);
1352 1353 1354
	}
}

1355
static void sony_nc_rfkill_setup(struct acpi_device *device)
1356
{
1357 1358 1359
	u64 offset;
	int i;
	unsigned char buffer[32] = { 0 };
1360

1361 1362 1363 1364 1365
	offset = sony_find_snc_handle(0x124);
	if (offset == -1) {
		offset = sony_find_snc_handle(0x135);
		if (offset == -1)
			return;
1366 1367 1368 1369
		else
			sony_rfkill_handle = 0x135;
	} else
		sony_rfkill_handle = 0x124;
1370 1371
	dprintk("Found rkfill handle: 0x%.4x\n", sony_rfkill_handle);

1372 1373 1374
	i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
			32);
	if (i < 0)
1375
		return;
1376

1377 1378 1379
	/* the buffer is filled with magic numbers describing the devices
	 * available, 0xff terminates the enumeration
	 */
1380
	for (i = 0; i < ARRAY_SIZE(buffer); i++) {
1381

1382
		if (buffer[i] == 0xff)
1383 1384
			break;

1385
		dprintk("Radio devices, looking at 0x%.2x\n", buffer[i]);
1386

1387
		if (buffer[i] == 0 && !sony_rfkill_devices[SONY_WIFI])
1388 1389
			sony_nc_setup_rfkill(device, SONY_WIFI);

1390
		if (buffer[i] == 0x10 && !sony_rfkill_devices[SONY_BLUETOOTH])
1391 1392
			sony_nc_setup_rfkill(device, SONY_BLUETOOTH);

1393
		if ((0xf0 & buffer[i]) == 0x20 &&
1394 1395 1396
				!sony_rfkill_devices[SONY_WWAN])
			sony_nc_setup_rfkill(device, SONY_WWAN);

1397
		if (buffer[i] == 0x30 && !sony_rfkill_devices[SONY_WIMAX])
1398 1399
			sony_nc_setup_rfkill(device, SONY_WIMAX);
	}
1400 1401
}

1402 1403 1404 1405
/* Keyboard backlight feature */
#define KBDBL_HANDLER	0x137
#define KBDBL_PRESENT	0xB00
#define	SET_MODE	0xC00
1406
#define SET_STATE	0xD00
1407 1408 1409 1410 1411 1412 1413 1414 1415
#define SET_TIMEOUT	0xE00

struct kbd_backlight {
	int mode;
	int timeout;
	struct device_attribute mode_attr;
	struct device_attribute timeout_attr;
};

1416
static struct kbd_backlight *kbdbl_handle;
1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428

static ssize_t __sony_nc_kbd_backlight_mode_set(u8 value)
{
	int result;

	if (value > 1)
		return -EINVAL;

	if (sony_call_snc_handle(KBDBL_HANDLER,
				(value << 0x10) | SET_MODE, &result))
		return -EIO;

1429 1430 1431 1432
	/* Try to turn the light on/off immediately */
	sony_call_snc_handle(KBDBL_HANDLER, (value << 0x10) | SET_STATE,
			&result);

1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513
	kbdbl_handle->mode = value;

	return 0;
}

static ssize_t sony_nc_kbd_backlight_mode_store(struct device *dev,
		struct device_attribute *attr,
		const char *buffer, size_t count)
{
	int ret = 0;
	unsigned long value;

	if (count > 31)
		return -EINVAL;

	if (strict_strtoul(buffer, 10, &value))
		return -EINVAL;

	ret = __sony_nc_kbd_backlight_mode_set(value);
	if (ret < 0)
		return ret;

	return count;
}

static ssize_t sony_nc_kbd_backlight_mode_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	ssize_t count = 0;
	count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->mode);
	return count;
}

static int __sony_nc_kbd_backlight_timeout_set(u8 value)
{
	int result;

	if (value > 3)
		return -EINVAL;

	if (sony_call_snc_handle(KBDBL_HANDLER,
				(value << 0x10) | SET_TIMEOUT, &result))
		return -EIO;

	kbdbl_handle->timeout = value;

	return 0;
}

static ssize_t sony_nc_kbd_backlight_timeout_store(struct device *dev,
		struct device_attribute *attr,
		const char *buffer, size_t count)
{
	int ret = 0;
	unsigned long value;

	if (count > 31)
		return -EINVAL;

	if (strict_strtoul(buffer, 10, &value))
		return -EINVAL;

	ret = __sony_nc_kbd_backlight_timeout_set(value);
	if (ret < 0)
		return ret;

	return count;
}

static ssize_t sony_nc_kbd_backlight_timeout_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	ssize_t count = 0;
	count = snprintf(buffer, PAGE_SIZE, "%d\n", kbdbl_handle->timeout);
	return count;
}

static int sony_nc_kbd_backlight_setup(struct platform_device *pd)
{
	int result;

1514
	if (sony_call_snc_handle(KBDBL_HANDLER, KBDBL_PRESENT, &result))
1515 1516 1517 1518 1519
		return 0;
	if (!(result & 0x02))
		return 0;

	kbdbl_handle = kzalloc(sizeof(*kbdbl_handle), GFP_KERNEL);
1520 1521
	if (!kbdbl_handle)
		return -ENOMEM;
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

	sysfs_attr_init(&kbdbl_handle->mode_attr.attr);
	kbdbl_handle->mode_attr.attr.name = "kbd_backlight";
	kbdbl_handle->mode_attr.attr.mode = S_IRUGO | S_IWUSR;
	kbdbl_handle->mode_attr.show = sony_nc_kbd_backlight_mode_show;
	kbdbl_handle->mode_attr.store = sony_nc_kbd_backlight_mode_store;

	sysfs_attr_init(&kbdbl_handle->timeout_attr.attr);
	kbdbl_handle->timeout_attr.attr.name = "kbd_backlight_timeout";
	kbdbl_handle->timeout_attr.attr.mode = S_IRUGO | S_IWUSR;
	kbdbl_handle->timeout_attr.show = sony_nc_kbd_backlight_timeout_show;
	kbdbl_handle->timeout_attr.store = sony_nc_kbd_backlight_timeout_store;

	if (device_create_file(&pd->dev, &kbdbl_handle->mode_attr))
		goto outkzalloc;

	if (device_create_file(&pd->dev, &kbdbl_handle->timeout_attr))
		goto outmode;

	__sony_nc_kbd_backlight_mode_set(kbd_backlight);
	__sony_nc_kbd_backlight_timeout_set(kbd_backlight_timeout);

	return 0;

outmode:
	device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
outkzalloc:
	kfree(kbdbl_handle);
	kbdbl_handle = NULL;
	return -1;
}

static int sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
{
	if (kbdbl_handle) {
1557 1558
		int result;

1559 1560
		device_remove_file(&pd->dev, &kbdbl_handle->mode_attr);
		device_remove_file(&pd->dev, &kbdbl_handle->timeout_attr);
1561 1562 1563 1564 1565

		/* restore the default hw behaviour */
		sony_call_snc_handle(KBDBL_HANDLER, 0x1000 | SET_MODE, &result);
		sony_call_snc_handle(KBDBL_HANDLER, SET_TIMEOUT, &result);

1566 1567 1568 1569 1570
		kfree(kbdbl_handle);
	}
	return 0;
}

1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586
static void sony_nc_kbd_backlight_resume(void)
{
	int ignore = 0;

	if (!kbdbl_handle)
		return;

	if (kbdbl_handle->mode == 0)
		sony_call_snc_handle(KBDBL_HANDLER, SET_MODE, &ignore);

	if (kbdbl_handle->timeout != 0)
		sony_call_snc_handle(KBDBL_HANDLER,
				(kbdbl_handle->timeout << 0x10) | SET_TIMEOUT,
				&ignore);
}

1587 1588 1589
static void sony_nc_backlight_ng_read_limits(int handle,
		struct sony_backlight_props *props)
{
1590 1591
	u64 offset;
	int i;
1592
	u8 min = 0xff, max = 0x00;
1593
	unsigned char buffer[32] = { 0 };
1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605

	props->handle = handle;
	props->offset = 0;
	props->maxlvl = 0xff;

	offset = sony_find_snc_handle(handle);
	if (offset < 0)
		return;

	/* try to read the boundaries from ACPI tables, if we fail the above
	 * defaults should be reasonable
	 */
1606 1607 1608
	i = sony_nc_buffer_call(sony_nc_acpi_handle, "SN06", &offset, buffer,
			32);
	if (i < 0)
1609 1610 1611
		return;

	/* the buffer lists brightness levels available, brightness levels are
1612 1613
	 * from position 0 to 8 in the array, other values are used by ALS
	 * control.
1614
	 */
1615
	for (i = 0; i < 9 && i < ARRAY_SIZE(buffer); i++) {
1616

1617
		dprintk("Brightness level: %d\n", buffer[i]);
1618

1619
		if (!buffer[i])
1620 1621
			break;

1622 1623 1624 1625
		if (buffer[i] > max)
			max = buffer[i];
		if (buffer[i] < min)
			min = buffer[i];
1626 1627 1628 1629 1630 1631 1632
	}
	props->offset = min;
	props->maxlvl = max;
	dprintk("Brightness levels: min=%d max=%d\n", props->offset,
			props->maxlvl);
}

1633 1634 1635 1636 1637 1638 1639 1640 1641
static void sony_nc_backlight_setup(void)
{
	acpi_handle unused;
	int max_brightness = 0;
	const struct backlight_ops *ops = NULL;
	struct backlight_properties props;

	if (sony_find_snc_handle(0x12f) != -1) {
		ops = &sony_backlight_ng_ops;
1642 1643
		sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props);
		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1644 1645 1646

	} else if (sony_find_snc_handle(0x137) != -1) {
		ops = &sony_backlight_ng_ops;
1647 1648
		sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props);
		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660

	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
						&unused))) {
		ops = &sony_backlight_ops;
		max_brightness = SONY_MAX_BRIGHTNESS - 1;

	} else
		return;

	memset(&props, 0, sizeof(struct backlight_properties));
	props.type = BACKLIGHT_PLATFORM;
	props.max_brightness = max_brightness;
1661 1662 1663
	sony_bl_props.dev = backlight_device_register("sony", NULL,
						      &sony_bl_props,
						      ops, &props);
1664

1665
	if (IS_ERR(sony_bl_props.dev)) {
1666
		pr_warn("unable to register backlight device\n");
1667
		sony_bl_props.dev = NULL;
1668
	} else
1669 1670
		sony_bl_props.dev->props.brightness =
			ops->get_brightness(sony_bl_props.dev);
1671 1672 1673 1674
}

static void sony_nc_backlight_cleanup(void)
{
1675 1676
	if (sony_bl_props.dev)
		backlight_device_unregister(sony_bl_props.dev);
1677 1678
}

1679
static int sony_nc_add(struct acpi_device *device)
1680 1681
{
	acpi_status status;
1682
	int result = 0;
1683
	acpi_handle handle;
1684
	struct sony_nc_value *item;
1685

1686
	pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
1687

1688
	sony_nc_acpi_device = device;
1689
	strcpy(acpi_device_class(device), "sony/hotkey");
1690

1691
	sony_nc_acpi_handle = device->handle;
1692

1693 1694 1695 1696 1697 1698 1699 1700 1701
	/* 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;
	}

1702 1703 1704 1705
	result = sony_pf_add();
	if (result)
		goto outpresent;

1706
	if (debug) {
1707 1708 1709
		status = acpi_walk_namespace(ACPI_TYPE_METHOD,
				sony_nc_acpi_handle, 1, sony_walk_callback,
				NULL, NULL, NULL);
1710
		if (ACPI_FAILURE(status)) {
1711
			pr_warn("unable to walk acpi resources\n");
1712
			result = -ENODEV;
1713
			goto outpresent;
1714
		}
1715
	}
1716

1717 1718
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
					 &handle))) {
1719 1720
		int arg = 1;
		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
1721 1722 1723
			dprintk("ECON Method failed\n");
	}

1724 1725 1726
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
					 &handle))) {
		dprintk("Doing SNC setup\n");
1727 1728
		result = sony_nc_handles_setup(sony_pf_device);
		if (result)
1729
			goto outpresent;
1730 1731
		result = sony_nc_kbd_backlight_setup(sony_pf_device);
		if (result)
1732
			goto outsnc;
1733
		sony_nc_function_setup(device);
1734
		sony_nc_rfkill_setup(device);
1735 1736
	}

1737
	/* setup input devices and helper fifo */
1738
	result = sony_laptop_setup_input(device);
1739
	if (result) {
1740
		pr_err("Unable to create input devices\n");
1741
		goto outkbdbacklight;
1742 1743
	}

1744
	if (acpi_video_backlight_support()) {
1745
		pr_info("brightness ignored, must be controlled by ACPI video driver\n");
1746 1747
	} else {
		sony_nc_backlight_setup();
1748
	}
1749

1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760
	/* 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))) {
1761 1762
				dprintk("Found %s getter: %s\n",
						item->name, *item->acpiget);
1763 1764 1765 1766 1767 1768 1769 1770 1771 1772
				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))) {
1773 1774
				dprintk("Found %s setter: %s\n",
						item->name, *item->acpiset);
1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788
				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;
		}
	}

1789 1790
	return 0;

1791 1792 1793 1794
      out_sysfs:
	for (item = sony_nc_values; item->name; ++item) {
		device_remove_file(&sony_pf_device->dev, &item->devattr);
	}
1795
	sony_nc_backlight_cleanup();
1796

1797 1798
	sony_laptop_remove_input();

1799 1800 1801
      outkbdbacklight:
	sony_nc_kbd_backlight_cleanup(sony_pf_device);

1802 1803 1804 1805 1806 1807
      outsnc:
	sony_nc_handles_cleanup(sony_pf_device);

      outpresent:
	sony_pf_remove();

L
Len Brown 已提交
1808
      outwalk:
1809
	sony_nc_rfkill_cleanup();
1810 1811 1812
	return result;
}

1813
static int sony_nc_remove(struct acpi_device *device, int type)
1814
{
1815
	struct sony_nc_value *item;
1816

1817
	sony_nc_backlight_cleanup();
1818

1819
	sony_nc_acpi_device = NULL;
1820

1821 1822 1823 1824
	for (item = sony_nc_values; item->name; ++item) {
		device_remove_file(&sony_pf_device->dev, &item->devattr);
	}

1825
	sony_nc_kbd_backlight_cleanup(sony_pf_device);
1826
	sony_nc_handles_cleanup(sony_pf_device);
1827
	sony_pf_remove();
1828
	sony_laptop_remove_input();
1829
	sony_nc_rfkill_cleanup();
1830
	dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1831 1832 1833 1834

	return 0;
}

1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846
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},
};

1847 1848 1849
static struct acpi_driver sony_nc_driver = {
	.name = SONY_NC_DRIVER_NAME,
	.class = SONY_NC_CLASS,
1850
	.ids = sony_nc_device_ids,
1851
	.owner = THIS_MODULE,
L
Len Brown 已提交
1852
	.ops = {
1853 1854 1855
		.add = sony_nc_add,
		.remove = sony_nc_remove,
		.resume = sony_nc_resume,
1856
		.notify = sony_nc_notify,
L
Len Brown 已提交
1857
		},
1858 1859
};

1860 1861 1862 1863 1864 1865
/*********** SPIC (SNY6001) Device ***********/

#define SONYPI_DEVICE_TYPE1	0x00000001
#define SONYPI_DEVICE_TYPE2	0x00000002
#define SONYPI_DEVICE_TYPE3	0x00000004

1866 1867 1868
#define SONYPI_TYPE1_OFFSET	0x04
#define SONYPI_TYPE2_OFFSET	0x12
#define SONYPI_TYPE3_OFFSET	0x12
1869 1870

struct sony_pic_ioport {
1871 1872
	struct acpi_resource_io	io1;
	struct acpi_resource_io	io2;
1873 1874 1875 1876 1877 1878 1879 1880
	struct list_head	list;
};

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

1881 1882 1883 1884 1885 1886
struct sonypi_eventtypes {
	u8			data;
	unsigned long		mask;
	struct sonypi_event	*events;
};

1887 1888 1889 1890 1891 1892 1893 1894 1895
struct sony_pic_dev {
	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;
	struct mutex			lock;
	struct sonypi_eventtypes	*event_types;
	int                             (*handle_irq)(const u8, const u8);
1896 1897
	int				model;
	u16				evport_offset;
1898 1899 1900
	u8				camera_power;
	u8				bluetooth_power;
	u8				wwan_power;
1901 1902 1903 1904 1905 1906 1907
};

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

1908 1909
static int spic_drv_registered;

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 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958
/* 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
1959
	{ 0x40, SONYPI_EVENT_CAPTURE_PRESSED },
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
	{ 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 },
1996
	{ 0x20, SONYPI_EVENT_PKEY_P1 },
1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
	{ 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[] = {
2010 2011
	{ 0x59, SONYPI_EVENT_IGNORE },
	{ 0x5a, SONYPI_EVENT_IGNORE },
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
	{ 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
2038 2039
	{ 0x10, SONYPI_EVENT_ZOOM_IN_PRESSED },
	{ 0x20, SONYPI_EVENT_ZOOM_OUT_PRESSED },
2040
	{ 0x04, SONYPI_EVENT_ZOOM_PRESSED },
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
	{ 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 }
};

2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083
/* The set of possible volume events */
static struct sonypi_event sonypi_volumeev[] = {
	{ 0x01, SONYPI_EVENT_VOLUME_INC_PRESSED },
	{ 0x02, SONYPI_EVENT_VOLUME_DEC_PRESSED },
	{ 0, 0 }
};

/* The set of possible brightness events */
static struct sonypi_event sonypi_brightnessev[] = {
	{ 0x80, SONYPI_EVENT_BRIGHTNESS_PRESSED },
	{ 0, 0 }
};

2084 2085 2086 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 2117 2118 2119 2120
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 },
M
Mattia Dongili 已提交
2121 2122 2123
	{ 0x05, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0x05, SONYPI_ZOOM_MASK, sonypi_zoomev },
	{ 0x05, SONYPI_CAPTURE_MASK, sonypi_captureev },
2124 2125
	{ 0x05, SONYPI_PKEY_MASK, sonypi_volumeev },
	{ 0x05, SONYPI_PKEY_MASK, sonypi_brightnessev },
M
Mattia Dongili 已提交
2126
	{ 0 },
2127 2128
};

M
Mattia Dongili 已提交
2129
/* low level spic calls */
2130 2131 2132 2133 2134 2135 2136 2137
#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",	\
2138
				__FILE__, __func__, __LINE__);	\
2139 2140 2141 2142 2143 2144
}

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

2145
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2146
			ITERATIONS_LONG);
2147 2148 2149
	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);
2150
	dprintk("sony_pic_call1(0x%.2x): 0x%.4x\n", dev, (v2 << 8) | v1);
2151 2152 2153 2154 2155 2156 2157
	return v2;
}

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

2158
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2159
			ITERATIONS_LONG);
2160 2161
	outb(dev, spic_dev.cur_ioport->io1.minimum + 4);
	wait_on_command(inb_p(spic_dev.cur_ioport->io1.minimum + 4) & 2,
2162
			ITERATIONS_LONG);
2163 2164
	outb(fn, spic_dev.cur_ioport->io1.minimum);
	v1 = inb_p(spic_dev.cur_ioport->io1.minimum);
2165
	dprintk("sony_pic_call2(0x%.2x - 0x%.2x): 0x%.4x\n", dev, fn, v1);
2166 2167 2168
	return v1;
}

2169 2170 2171 2172
static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
{
	u8 v1;

2173 2174 2175 2176 2177 2178 2179
	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);
2180 2181
	dprintk("sony_pic_call3(0x%.2x - 0x%.2x - 0x%.2x): 0x%.4x\n",
			dev, fn, v, v1);
2182 2183 2184
	return v1;
}

M
Mattia Dongili 已提交
2185 2186 2187
/*
 * minidrivers for SPIC models
 */
2188
static int type3_handle_irq(const u8 data_mask, const u8 ev)
M
Mattia Dongili 已提交
2189 2190 2191
{
	/*
	 * 0x31 could mean we have to take some extra action and wait for
2192
	 * the next irq for some Type3 models, it will generate a new
M
Mattia Dongili 已提交
2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213
	 * 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 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) {
2214 2215 2216
		dev->model = SONYPI_DEVICE_TYPE1;
		dev->evport_offset = SONYPI_TYPE1_OFFSET;
		dev->event_types = type1_events;
M
Mattia Dongili 已提交
2217 2218 2219 2220 2221 2222
		goto out;
	}

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH6_1, NULL);
	if (pcidev) {
2223 2224 2225
		dev->model = SONYPI_DEVICE_TYPE2;
		dev->evport_offset = SONYPI_TYPE2_OFFSET;
		dev->event_types = type2_events;
M
Mattia Dongili 已提交
2226 2227 2228 2229 2230 2231
		goto out;
	}

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH7_1, NULL);
	if (pcidev) {
2232 2233 2234 2235
		dev->model = SONYPI_DEVICE_TYPE3;
		dev->handle_irq = type3_handle_irq;
		dev->evport_offset = SONYPI_TYPE3_OFFSET;
		dev->event_types = type3_events;
M
Mattia Dongili 已提交
2236 2237 2238 2239 2240 2241
		goto out;
	}

	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH8_4, NULL);
	if (pcidev) {
2242 2243 2244 2245
		dev->model = SONYPI_DEVICE_TYPE3;
		dev->handle_irq = type3_handle_irq;
		dev->evport_offset = SONYPI_TYPE3_OFFSET;
		dev->event_types = type3_events;
M
Mattia Dongili 已提交
2246 2247 2248
		goto out;
	}

2249 2250 2251
	pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
			PCI_DEVICE_ID_INTEL_ICH9_1, NULL);
	if (pcidev) {
2252 2253 2254 2255
		dev->model = SONYPI_DEVICE_TYPE3;
		dev->handle_irq = type3_handle_irq;
		dev->evport_offset = SONYPI_TYPE3_OFFSET;
		dev->event_types = type3_events;
2256 2257 2258
		goto out;
	}

M
Mattia Dongili 已提交
2259
	/* default */
2260 2261 2262
	dev->model = SONYPI_DEVICE_TYPE2;
	dev->evport_offset = SONYPI_TYPE2_OFFSET;
	dev->event_types = type2_events;
M
Mattia Dongili 已提交
2263 2264 2265 2266 2267

out:
	if (pcidev)
		pci_dev_put(pcidev);

2268 2269 2270
	pr_info("detected Type%d model\n",
		dev->model == SONYPI_DEVICE_TYPE1 ? 1 :
		dev->model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
M
Mattia Dongili 已提交
2271 2272
}

2273 2274 2275
/* camera tests and poweron/poweroff */
#define SONYPI_CAMERA_PICTURE		5
#define SONYPI_CAMERA_CONTROL		0x10
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

#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
2304

2305
static int __sony_pic_camera_ready(void)
2306 2307 2308 2309 2310 2311 2312
{
	u8 v;

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

2313
static int __sony_pic_camera_off(void)
2314
{
2315
	if (!camera) {
2316
		pr_warn("camera control not enabled\n");
2317 2318 2319
		return -ENODEV;
	}

2320 2321 2322 2323
	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
				SONYPI_CAMERA_MUTE_MASK),
			ITERATIONS_SHORT);

2324 2325 2326 2327 2328
	if (spic_dev.camera_power) {
		sony_pic_call2(0x91, 0);
		spic_dev.camera_power = 0;
	}
	return 0;
2329 2330
}

2331
static int __sony_pic_camera_on(void)
2332
{
2333 2334 2335
	int i, j, x;

	if (!camera) {
2336
		pr_warn("camera control not enabled\n");
2337 2338
		return -ENODEV;
	}
2339 2340

	if (spic_dev.camera_power)
2341
		return 0;
2342 2343 2344

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

2345
		for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
2346 2347 2348 2349
			msleep(10);
		sony_pic_call1(0x93);

		for (i = 400; i > 0; i--) {
2350
			if (__sony_pic_camera_ready())
2351 2352 2353 2354 2355 2356 2357 2358
				break;
			msleep(10);
		}
		if (i)
			break;
	}

	if (j == 0) {
2359
		pr_warn("failed to power on camera\n");
2360
		return -ENODEV;
2361 2362 2363 2364 2365 2366 2367
	}

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

	spic_dev.camera_power = 1;
2368
	return 0;
2369 2370
}

2371 2372 2373 2374 2375 2376 2377 2378 2379
/* 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) {
2380
	case SONY_PIC_COMMAND_SETCAMERA:
2381 2382 2383 2384 2385
		if (value)
			__sony_pic_camera_on();
		else
			__sony_pic_camera_off();
		break;
2386
	case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
2387 2388 2389
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
				ITERATIONS_SHORT);
		break;
2390
	case SONY_PIC_COMMAND_SETCAMERACONTRAST:
2391 2392 2393
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
				ITERATIONS_SHORT);
		break;
2394
	case SONY_PIC_COMMAND_SETCAMERAHUE:
2395 2396 2397
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
				ITERATIONS_SHORT);
		break;
2398
	case SONY_PIC_COMMAND_SETCAMERACOLOR:
2399 2400 2401
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
				ITERATIONS_SHORT);
		break;
2402
	case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
2403 2404 2405
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
				ITERATIONS_SHORT);
		break;
2406
	case SONY_PIC_COMMAND_SETCAMERAPICTURE:
2407 2408 2409
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
				ITERATIONS_SHORT);
		break;
2410
	case SONY_PIC_COMMAND_SETCAMERAAGC:
2411 2412 2413 2414
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
				ITERATIONS_SHORT);
		break;
	default:
2415
		pr_err("sony_pic_camera_command invalid: %d\n", command);
2416 2417 2418 2419 2420 2421 2422
		break;
	}
	mutex_unlock(&spic_dev.lock);
	return 0;
}
EXPORT_SYMBOL(sony_pic_camera_command);

2423
/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
2424
static void __sony_pic_set_wwanpower(u8 state)
2425 2426
{
	state = !!state;
2427
	if (spic_dev.wwan_power == state)
2428 2429
		return;
	sony_pic_call2(0xB0, state);
2430
	sony_pic_call1(0x82);
2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442
	spic_dev.wwan_power = state;
}

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);
2443 2444 2445
	mutex_lock(&spic_dev.lock);
	__sony_pic_set_wwanpower(value);
	mutex_unlock(&spic_dev.lock);
2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459

	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;
}

2460
/* bluetooth subsystem power state */
2461
static void __sony_pic_set_bluetoothpower(u8 state)
2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479
{
	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);
2480 2481 2482
	mutex_lock(&spic_dev.lock);
	__sony_pic_set_bluetoothpower(value);
	mutex_unlock(&spic_dev.lock);
2483 2484 2485 2486 2487 2488 2489

	return count;
}

static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
2490 2491 2492 2493 2494
	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;
2495 2496 2497 2498 2499
}

/* fan speed */
/* FAN0 information (reverse engineered from ACPI tables) */
#define SONY_PIC_FAN0_STATUS	0x93
2500 2501 2502 2503 2504 2505 2506 2507 2508 2509
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);
}

2510 2511 2512 2513 2514 2515 2516 2517 2518
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);
2519
	if (sony_pic_set_fanspeed(value))
2520 2521 2522 2523 2524 2525 2526 2527 2528
		return -EIO;

	return count;
}

static ssize_t sony_pic_fanspeed_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	u8 value = 0;
2529
	if (sony_pic_get_fanspeed(&value))
2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540
		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);
2541
static SPIC_ATTR(wwanpower, 0644);
2542 2543 2544 2545
static SPIC_ATTR(fanspeed, 0644);

static struct attribute *spic_attributes[] = {
	&spic_attr_bluetoothpower.attr,
2546
	&spic_attr_wwanpower.attr,
2547 2548 2549 2550 2551 2552 2553 2554
	&spic_attr_fanspeed.attr,
	NULL
};

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

2555
/******** SONYPI compatibility **********/
2556
#ifdef CONFIG_SONYPI_COMPAT
2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574

/* 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;
2575
	struct kfifo		fifo;
2576 2577 2578 2579 2580 2581 2582 2583 2584 2585
	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)
{
2586
	return fasync_helper(fd, filp, on, &sonypi_compat.fifo_async);
2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597
}

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
Alessio Igor Bogani 已提交
2598 2599
	unsigned long flags;

2600
	spin_lock_irqsave(&sonypi_compat.fifo_lock, flags);
A
Alessio Igor Bogani 已提交
2601

2602
	if (atomic_inc_return(&sonypi_compat.open_count) == 1)
S
Stefani Seibold 已提交
2603
		kfifo_reset(&sonypi_compat.fifo);
A
Alessio Igor Bogani 已提交
2604

2605
	spin_unlock_irqrestore(&sonypi_compat.fifo_lock, flags);
A
Alessio Igor Bogani 已提交
2606

2607 2608 2609 2610 2611 2612 2613 2614 2615
	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;

2616
	if ((kfifo_len(&sonypi_compat.fifo) == 0) &&
2617 2618 2619 2620
	    (file->f_flags & O_NONBLOCK))
		return -EAGAIN;

	ret = wait_event_interruptible(sonypi_compat.fifo_proc_list,
2621
				       kfifo_len(&sonypi_compat.fifo) != 0);
2622 2623 2624 2625
	if (ret)
		return ret;

	while (ret < count &&
2626
	       (kfifo_out_locked(&sonypi_compat.fifo, &c, sizeof(c),
S
Stefani Seibold 已提交
2627
			  &sonypi_compat.fifo_lock) == sizeof(c))) {
2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643
		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);
2644
	if (kfifo_len(&sonypi_compat.fifo))
2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659
		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;
}

A
Alan Cox 已提交
2660 2661
static long sonypi_misc_ioctl(struct file *fp, unsigned int cmd,
							unsigned long arg)
2662 2663 2664 2665 2666 2667 2668
{
	int ret = 0;
	void __user *argp = (void __user *)arg;
	u8 val8;
	u16 val16;
	int value;

2669
	mutex_lock(&spic_dev.lock);
2670 2671
	switch (cmd) {
	case SONYPI_IOCGBRT:
2672
		if (sony_bl_props.dev == NULL) {
2673 2674 2675
			ret = -EIO;
			break;
		}
2676 2677
		if (sony_nc_int_call(sony_nc_acpi_handle, "GBRT", NULL,
					&value)) {
2678 2679 2680 2681 2682 2683 2684 2685
			ret = -EIO;
			break;
		}
		val8 = ((value & 0xff) - 1) << 5;
		if (copy_to_user(argp, &val8, sizeof(val8)))
				ret = -EFAULT;
		break;
	case SONYPI_IOCSBRT:
2686
		if (sony_bl_props.dev == NULL) {
2687 2688 2689 2690 2691 2692 2693
			ret = -EIO;
			break;
		}
		if (copy_from_user(&val8, argp, sizeof(val8))) {
			ret = -EFAULT;
			break;
		}
2694 2695 2696
		value = (val8 >> 5) + 1;
		if (sony_nc_int_call(sony_nc_acpi_handle, "SBRT", &value,
					NULL)) {
2697 2698 2699 2700
			ret = -EIO;
			break;
		}
		/* sync the backlight device status */
2701 2702
		sony_bl_props.dev->props.brightness =
		    sony_backlight_get_brightness(sony_bl_props.dev);
2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 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 2748 2749 2750 2751 2752 2753 2754
		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;
		}
2755
		__sony_pic_set_bluetoothpower(val8);
2756 2757 2758 2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785
		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;
	}
2786
	mutex_unlock(&spic_dev.lock);
2787 2788 2789 2790 2791 2792 2793 2794 2795 2796
	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,
A
Alan Cox 已提交
2797
	.unlocked_ioctl	= sonypi_misc_ioctl,
2798
	.llseek		= noop_llseek,
2799 2800 2801 2802 2803 2804 2805 2806 2807 2808
};

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

static void sonypi_compat_report_event(u8 event)
{
2809
	kfifo_in_locked(&sonypi_compat.fifo, (unsigned char *)&event,
S
Stefani Seibold 已提交
2810
			sizeof(event), &sonypi_compat.fifo_lock);
2811 2812 2813 2814 2815 2816 2817 2818 2819
	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);
2820
	error =
S
Stefani Seibold 已提交
2821
	 kfifo_alloc(&sonypi_compat.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
2822
	if (error) {
2823
		pr_err("kfifo_alloc failed\n");
2824
		return error;
2825 2826 2827 2828 2829 2830 2831 2832
	}

	init_waitqueue_head(&sonypi_compat.fifo_proc_list);

	if (minor != -1)
		sonypi_misc_device.minor = minor;
	error = misc_register(&sonypi_misc_device);
	if (error) {
2833
		pr_err("misc_register failed\n");
2834 2835 2836
		goto err_free_kfifo;
	}
	if (minor == -1)
2837 2838
		pr_info("device allocated minor is %d\n",
			sonypi_misc_device.minor);
2839 2840 2841 2842

	return 0;

err_free_kfifo:
2843
	kfifo_free(&sonypi_compat.fifo);
2844 2845 2846 2847 2848 2849
	return error;
}

static void sonypi_compat_exit(void)
{
	misc_deregister(&sonypi_misc_device);
2850
	kfifo_free(&sonypi_compat.fifo);
2851 2852 2853 2854 2855
}
#else
static int sonypi_compat_init(void) { return 0; }
static void sonypi_compat_exit(void) { }
static void sonypi_compat_report_event(u8 event) { }
2856
#endif /* CONFIG_SONYPI_COMPAT */
2857

2858
/*
2859
 * ACPI callbacks
2860
 */
2861 2862 2863 2864 2865 2866 2867 2868
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:
2869 2870 2871 2872 2873 2874 2875 2876 2877 2878
		{
			/* 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;
		}

2879
	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
2880
		/* end IO enumeration */
2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896
		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]) {
2897 2898
					pr_warn("Invalid IRQ %d\n",
						p->interrupts[i]);
2899 2900 2901 2902 2903 2904 2905
					continue;
				}
				interrupt = kzalloc(sizeof(*interrupt),
						GFP_KERNEL);
				if (!interrupt)
					return AE_ERROR;

2906
				list_add(&interrupt->list, &dev->interrupts);
2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917
				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;
2918 2919
			struct sony_pic_ioport *ioport =
				list_first_entry(&dev->ioports, struct sony_pic_ioport, list);
2920 2921 2922 2923 2924
			if (!io) {
				dprintk("Blank IO resource\n");
				return AE_OK;
			}

2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935
			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 {
2936
				pr_err("Unknown SPIC Type, more than 2 IO Ports\n");
2937
				return AE_ERROR;
2938
			}
2939 2940 2941 2942
			return AE_OK;
		}
	default:
		dprintk("Resource %d isn't an IRQ nor an IO port\n",
2943
			resource->type);
2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963

	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) {
2964
		pr_warn("Unable to read status\n");
2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979
		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)) {
2980
		pr_warn("Failure evaluating %s\n", METHOD_NAME__PRS);
2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991
		result = -ENODEV;
	}
end:
	return result;
}

/*
 *  Disable the spic device by calling its _DIS method
 */
static int sony_pic_disable(struct acpi_device *device)
{
2992 2993 2994 2995
	acpi_status ret = acpi_evaluate_object(device->handle, "_DIS", NULL,
					       NULL);

	if (ACPI_FAILURE(ret) && ret != AE_NOT_FOUND)
2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012
		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;
3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
	/* Type 1 resource layout is:
	 *    IO
	 *    IO
	 *    IRQNoFlags
	 *    End
	 *
	 * Type 2 and 3 resource layout is:
	 *    IO
	 *    IRQNoFlags
	 *    End
	 */
3024
	struct {
3025 3026 3027 3028
		struct acpi_resource res1;
		struct acpi_resource res2;
		struct acpi_resource res3;
		struct acpi_resource res4;
3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042
	} *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;

3043
	/* setup Type 1 resources */
3044
	if (spic_dev.model == SONYPI_DEVICE_TYPE1) {
3045

3046 3047 3048 3049 3050
		/* 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));
3051

3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085
		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;
	}
3086 3087 3088 3089 3090 3091 3092

	/* 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)) {
3093
		pr_err("Error evaluating _SRS\n");
3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121
		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;

3122 3123 3124 3125
	ev = inb_p(dev->cur_ioport->io1.minimum);
	if (dev->cur_ioport->io2.minimum)
		data_mask = inb_p(dev->cur_ioport->io2.minimum);
	else
3126
		data_mask = inb_p(dev->cur_ioport->io1.minimum +
3127
				dev->evport_offset);
3128

3129
	dprintk("event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
3130
			ev, data_mask, dev->cur_ioport->io1.minimum,
3131
			dev->evport_offset);
3132 3133 3134 3135

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

3136
	for (i = 0; dev->event_types[i].mask; i++) {
3137

3138 3139
		if ((data_mask & dev->event_types[i].data) !=
		    dev->event_types[i].data)
3140 3141
			continue;

3142
		if (!(mask & dev->event_types[i].mask))
3143 3144
			continue;

3145 3146
		for (j = 0; dev->event_types[i].events[j].event; j++) {
			if (ev == dev->event_types[i].events[j].data) {
3147
				device_event =
3148
					dev->event_types[i].events[j].event;
3149 3150 3151
				/* some events may require ignoring */
				if (!device_event)
					return IRQ_HANDLED;
3152 3153 3154 3155
				goto found;
			}
		}
	}
M
Mattia Dongili 已提交
3156 3157 3158
	/* Still not able to decode the event try to pass
	 * it over to the minidriver
	 */
3159
	if (dev->handle_irq && dev->handle_irq(data_mask, ev) == 0)
M
Mattia Dongili 已提交
3160 3161
		return IRQ_HANDLED;

3162 3163
	dprintk("unknown event ([%.2x] [%.2x]) at port 0x%.4x(+0x%.2x)\n",
			ev, data_mask, dev->cur_ioport->io1.minimum,
3164
			dev->evport_offset);
3165 3166 3167
	return IRQ_HANDLED;

found:
3168
	sony_laptop_report_input_event(device_event);
3169
	acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
3170
	sonypi_compat_report_event(device_event);
3171 3172 3173 3174 3175 3176 3177 3178 3179 3180 3181 3182 3183 3184
	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)) {
3185
		pr_err("Couldn't disable device\n");
3186 3187 3188 3189
		return -ENXIO;
	}

	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
3190 3191 3192 3193 3194
	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);
3195

3196 3197
	sonypi_compat_exit();

3198
	sony_laptop_remove_input();
3199

3200 3201 3202 3203
	/* pf attrs */
	sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
	sony_pf_remove();

3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214
	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;

3215
	dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
3216 3217 3218 3219 3220 3221 3222 3223 3224
	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;

3225
	pr_info("%s v%s\n", SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
3226 3227 3228

	spic_dev.acpi_dev = device;
	strcpy(acpi_device_class(device), "sony/hotkey");
3229
	sony_pic_detect_device_type(&spic_dev);
3230
	mutex_init(&spic_dev.lock);
3231 3232 3233 3234

	/* read _PRS resources */
	result = sony_pic_possible_resources(device);
	if (result) {
3235
		pr_err("Unable to read possible resources\n");
3236 3237 3238 3239
		goto err_free_resources;
	}

	/* setup input devices and helper fifo */
3240
	result = sony_laptop_setup_input(device);
3241
	if (result) {
3242
		pr_err("Unable to create input devices\n");
3243 3244 3245
		goto err_free_resources;
	}

3246 3247 3248
	if (sonypi_compat_init())
		goto err_remove_input;

3249
	/* request io port */
3250 3251
	list_for_each_entry_reverse(io, &spic_dev.ioports, list) {
		if (request_region(io->io1.minimum, io->io1.address_length,
3252
					"Sony Programmable I/O Device")) {
3253 3254 3255 3256 3257 3258 3259
			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,
3260
						"Sony Programmable I/O Device")) {
3261 3262 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279
					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;
			}
3280 3281 3282
		}
	}
	if (!spic_dev.cur_ioport) {
3283
		pr_err("Failed to request_region\n");
3284
		result = -ENODEV;
3285
		goto err_remove_compat;
3286 3287 3288
	}

	/* request IRQ */
3289
	list_for_each_entry_reverse(irq, &spic_dev.interrupts, list) {
3290
		if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
Y
Yong Zhang 已提交
3291
					0, "sony-laptop", &spic_dev)) {
3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302
			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) {
3303
		pr_err("Failed to request_irq\n");
3304 3305 3306 3307 3308 3309 3310
		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) {
3311
		pr_err("Couldn't enable device\n");
3312 3313 3314
		goto err_free_irq;
	}

3315 3316 3317 3318 3319 3320 3321 3322 3323 3324
	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;

3325 3326
	return 0;

3327 3328 3329 3330 3331 3332
err_remove_pf:
	sony_pf_remove();

err_disable_device:
	sony_pic_disable(device);

3333 3334 3335 3336
err_free_irq:
	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);

err_release_region:
3337 3338 3339 3340 3341
	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);
3342

3343 3344 3345
err_remove_compat:
	sonypi_compat_exit();

3346
err_remove_input:
3347
	sony_laptop_remove_input();
3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376

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;
}

3377 3378 3379 3380 3381
static const struct acpi_device_id sony_pic_device_ids[] = {
	{SONY_PIC_HID, 0},
	{"", 0},
};

3382 3383 3384
static struct acpi_driver sony_pic_driver = {
	.name = SONY_PIC_DRIVER_NAME,
	.class = SONY_PIC_CLASS,
3385
	.ids = sony_pic_device_ids,
3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398 3399 3400 3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412
	.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-"),
		},
	},
	{ }
};

3413
static int __init sony_laptop_init(void)
3414
{
3415 3416 3417 3418 3419
	int result;

	if (!no_spic && dmi_check_system(sonypi_dmi_table)) {
		result = acpi_bus_register_driver(&sony_pic_driver);
		if (result) {
3420
			pr_err("Unable to register SPIC driver\n");
3421 3422
			goto out;
		}
3423
		spic_drv_registered = 1;
3424 3425 3426 3427
	}

	result = acpi_bus_register_driver(&sony_nc_driver);
	if (result) {
3428
		pr_err("Unable to register SNC driver\n");
3429 3430 3431 3432 3433 3434
		goto out_unregister_pic;
	}

	return 0;

out_unregister_pic:
3435
	if (spic_drv_registered)
3436 3437 3438
		acpi_bus_unregister_driver(&sony_pic_driver);
out:
	return result;
3439 3440
}

3441
static void __exit sony_laptop_exit(void)
3442
{
3443
	acpi_bus_unregister_driver(&sony_nc_driver);
3444
	if (spic_drv_registered)
3445
		acpi_bus_unregister_driver(&sony_pic_driver);
3446 3447
}

3448 3449
module_init(sony_laptop_init);
module_exit(sony_laptop_exit);