sony-laptop.c 61.2 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 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>
 *
 * Copyright (C) 2001-2002 Alcve <www.alcove.com>
 *
 * 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.
 *
 */

#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 <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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#ifdef CONFIG_SONYPI_COMPAT
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#include <linux/poll.h>
#include <linux/miscdevice.h>
#endif
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#define DRV_PFX			"sony-laptop: "
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#define dprintk(msg...)		do {			\
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	if (debug) printk(KERN_WARNING DRV_PFX  msg);	\
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} while (0)

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#define SONY_LAPTOP_DRIVER_VERSION	"0.5"

#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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/*********** Input Devices ***********/

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

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

/* Correspondance table between sonypi events and input layer events */
static struct {
	int sonypiev;
	int inputev;
} sony_laptop_inputkeys[] = {
	{ SONYPI_EVENT_CAPTURE_PRESSED,	 	KEY_CAMERA },
	{ SONYPI_EVENT_FNKEY_ONLY, 		KEY_FN },
	{ SONYPI_EVENT_FNKEY_ESC, 		KEY_FN_ESC },
	{ SONYPI_EVENT_FNKEY_F1, 		KEY_FN_F1 },
	{ SONYPI_EVENT_FNKEY_F2, 		KEY_FN_F2 },
	{ SONYPI_EVENT_FNKEY_F3, 		KEY_FN_F3 },
	{ SONYPI_EVENT_FNKEY_F4, 		KEY_FN_F4 },
	{ SONYPI_EVENT_FNKEY_F5, 		KEY_FN_F5 },
	{ SONYPI_EVENT_FNKEY_F6, 		KEY_FN_F6 },
	{ SONYPI_EVENT_FNKEY_F7, 		KEY_FN_F7 },
	{ SONYPI_EVENT_FNKEY_F8, 		KEY_FN_F8 },
	{ SONYPI_EVENT_FNKEY_F9,		KEY_FN_F9 },
	{ SONYPI_EVENT_FNKEY_F10,		KEY_FN_F10 },
	{ SONYPI_EVENT_FNKEY_F11, 		KEY_FN_F11 },
	{ SONYPI_EVENT_FNKEY_F12,		KEY_FN_F12 },
	{ SONYPI_EVENT_FNKEY_1, 		KEY_FN_1 },
	{ SONYPI_EVENT_FNKEY_2, 		KEY_FN_2 },
	{ SONYPI_EVENT_FNKEY_D,			KEY_FN_D },
	{ SONYPI_EVENT_FNKEY_E,			KEY_FN_E },
	{ SONYPI_EVENT_FNKEY_F,			KEY_FN_F },
	{ SONYPI_EVENT_FNKEY_S,			KEY_FN_S },
	{ SONYPI_EVENT_FNKEY_B,			KEY_FN_B },
	{ SONYPI_EVENT_BLUETOOTH_PRESSED, 	KEY_BLUE },
	{ SONYPI_EVENT_BLUETOOTH_ON, 		KEY_BLUE },
	{ SONYPI_EVENT_PKEY_P1, 		KEY_PROG1 },
	{ SONYPI_EVENT_PKEY_P2, 		KEY_PROG2 },
	{ SONYPI_EVENT_PKEY_P3, 		KEY_PROG3 },
	{ SONYPI_EVENT_BACK_PRESSED, 		KEY_BACK },
	{ SONYPI_EVENT_HELP_PRESSED, 		KEY_HELP },
	{ SONYPI_EVENT_ZOOM_PRESSED, 		KEY_ZOOM },
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	{ SONYPI_EVENT_WIRELESS_ON, 		KEY_WLAN },
	{ SONYPI_EVENT_WIRELESS_OFF, 		KEY_WLAN },
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	{ SONYPI_EVENT_THUMBPHRASE_PRESSED, 	BTN_THUMB },
	{ 0, 0 },
};

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

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

/* forward event to the input subsytem */
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 };
	int i;

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

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

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

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

	default:
		for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
			if (event == sony_laptop_inputkeys[i].sonypiev) {
				kp.dev = key_dev;
				kp.key = sony_laptop_inputkeys[i].inputev;
				break;
			}
		break;
	}

	if (kp.dev) {
		input_report_key(kp.dev, kp.key, 1);
		input_sync(kp.dev);
		kfifo_put(sony_laptop_input.fifo,
			  (unsigned char *)&kp, sizeof(kp));

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

static int sony_laptop_setup_input(void)
{
	struct input_dev *jog_dev;
	struct input_dev *key_dev;
	int i;
	int error;

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

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

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

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

	key_dev->name = "Sony Vaio Keys";
	key_dev->id.bustype = BUS_ISA;
	key_dev->id.vendor = PCI_VENDOR_ID_SONY;

	/* Initialize the Input Drivers: special keys */
	key_dev->evbit[0] = BIT(EV_KEY);
	for (i = 0; sony_laptop_inputkeys[i].sonypiev; i++)
		if (sony_laptop_inputkeys[i].inputev)
			set_bit(sony_laptop_inputkeys[i].inputev,
					key_dev->keybit);

	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;

	jog_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
	jog_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_MIDDLE);
	jog_dev->relbit[0] = BIT(REL_WHEEL);

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

	sony_laptop_input.jog_dev = jog_dev;

	return 0;

err_free_jogdev:
	input_free_device(jog_dev);

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

err_free_keydev:
	input_free_device(key_dev);

err_destroy_wq:
	destroy_workqueue(sony_laptop_input.wq);

err_free_kfifo:
	kfifo_free(sony_laptop_input.fifo);

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

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

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

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

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

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

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/*********** Platform Device ***********/

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

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

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

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

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

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

	return 0;

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

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

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

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

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/* 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

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static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
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			      char *);
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static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
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			       const char *, size_t);
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static int boolean_validate(const int, const int);
static int brightness_default_validate(const int, const int);

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struct sony_nc_value {
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	char *name;		/* name of the entry */
	char **acpiget;		/* names of the ACPI get function */
	char **acpiset;		/* names of the ACPI set function */
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	int (*validate)(const int, const int);	/* input/output validation */
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	int value;		/* current setting */
	int valid;		/* Has ever been set */
	int debug;		/* active only in debug mode ? */
	struct device_attribute devattr;	/* sysfs atribute */
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};

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

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#define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
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	{ \
		.name		= __stringify(_name), \
		.acpiget	= _getters, \
		.acpiset	= _setters, \
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		.validate	= _validate, \
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		.debug		= _debug, \
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		.devattr	= __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
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	}
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#define SNC_HANDLE_NULL	{ .name = NULL }
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SNC_HANDLE_NAMES(fnkey_get, "GHKE");
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SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
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SNC_HANDLE_NAMES(cdpower_get, "GCDP");
SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
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SNC_HANDLE_NAMES(audiopower_get, "GAZP");
SNC_HANDLE_NAMES(audiopower_set, "AZPW");
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SNC_HANDLE_NAMES(lanpower_get, "GLNP");
SNC_HANDLE_NAMES(lanpower_set, "LNPW");
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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");

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SNC_HANDLE_NAMES(PID_get, "GPID");
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SNC_HANDLE_NAMES(CTR_get, "GCTR");
SNC_HANDLE_NAMES(CTR_set, "SCTR");
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SNC_HANDLE_NAMES(PCR_get, "GPCR");
SNC_HANDLE_NAMES(PCR_set, "SPCR");
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SNC_HANDLE_NAMES(CMI_get, "GCMI");
SNC_HANDLE_NAMES(CMI_set, "SCMI");
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static struct sony_nc_value sony_nc_values[] = {
	SNC_HANDLE(brightness_default, snc_brightness_def_get,
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			snc_brightness_def_set, brightness_default_validate, 0),
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	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,
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			boolean_validate, 0),
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	SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
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			boolean_validate, 1),
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	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),
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	/* unknown methods */
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	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
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};

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static acpi_handle sony_nc_acpi_handle;
static struct acpi_device *sony_nc_acpi_device = NULL;
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/*
 * acpi_evaluate_object wrappers
 */
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static int acpi_callgetfunc(acpi_handle handle, char *name, int *result)
{
	struct acpi_buffer output;
	union acpi_object out_obj;
	acpi_status status;

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

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

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	printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
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	return -1;
}

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

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

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

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

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	printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
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	return -1;
}

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/*
596
 * sony_nc_values input/output validate functions
597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629
 */

/* 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;
}

630
/*
631
 * Sysfs show/store common to all sony_nc_values
632
 */
633
static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
L
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634
			      char *buffer)
635 636
{
	int value;
637 638
	struct sony_nc_value *item =
	    container_of(attr, struct sony_nc_value, devattr);
639

640
	if (!*item->acpiget)
641 642
		return -EIO;

643
	if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
644 645
		return -EIO;

646 647 648
	if (item->validate)
		value = item->validate(SNC_VALIDATE_OUT, value);

649
	return snprintf(buffer, PAGE_SIZE, "%d\n", value);
650 651
}

652
static ssize_t sony_nc_sysfs_store(struct device *dev,
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653 654
			       struct device_attribute *attr,
			       const char *buffer, size_t count)
655 656
{
	int value;
657 658
	struct sony_nc_value *item =
	    container_of(attr, struct sony_nc_value, devattr);
659 660 661 662

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

663 664 665 666
	if (count > 31)
		return -EINVAL;

	value = simple_strtoul(buffer, NULL, 10);
667

668 669 670 671 672
	if (item->validate)
		value = item->validate(SNC_VALIDATE_IN, value);

	if (value < 0)
		return value;
673

674
	if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
675
		return -EIO;
676 677
	item->value = value;
	item->valid = 1;
678 679 680
	return count;
}

681

682 683 684 685
/*
 * Backlight device
 */
static int sony_backlight_update_status(struct backlight_device *bd)
686
{
687
	return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
688
				bd->props.brightness + 1, NULL);
689
}
690

691 692 693
static int sony_backlight_get_brightness(struct backlight_device *bd)
{
	int value;
694

695
	if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
696 697 698
		return 0;
	/* brightness levels are 1-based, while backlight ones are 0-based */
	return value - 1;
699 700
}

701
static struct backlight_device *sony_backlight_device;
702
static struct backlight_ops sony_backlight_ops = {
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703 704
	.update_status = sony_backlight_update_status,
	.get_brightness = sony_backlight_get_brightness,
705 706
};

707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770
/*
 * New SNC-only Vaios event mapping to driver known keys
 */
struct sony_nc_event {
	u8	data;
	u8	event;
};

static struct sony_nc_event *sony_nc_events;

/* Vaio C* --maybe also FE*, N* and AR* ?-- special init sequence
 * for Fn keys
 */
static int sony_nc_C_enable(struct dmi_system_id *id)
{
	int result = 0;

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

	sony_nc_events = id->driver_data;

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

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

/* SNC-only model map */
struct dmi_system_id sony_nc_ids[] = {
		{
			.ident = "Sony Vaio C Series",
			.callback = sony_nc_C_enable,
			.driver_data = sony_C_events,
			.matches = {
				DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
				DMI_MATCH(DMI_PRODUCT_NAME, "VGN-C"),
			},
		},
		{ }
};

771 772 773
/*
 * ACPI callbacks
 */
774 775
static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
{
776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808
	struct sony_nc_event *evmap;
	u32 ev = event;
	int result;

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

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

	dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
	sony_laptop_report_input_event(ev);
	acpi_bus_generate_event(sony_nc_acpi_device, 1, ev);
809 810 811 812 813 814 815 816
}

static acpi_status sony_walk_callback(acpi_handle handle, u32 level,
				      void *context, void **return_value)
{
	struct acpi_namespace_node *node;
	union acpi_operand_object *operand;

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817 818
	node = (struct acpi_namespace_node *)handle;
	operand = (union acpi_operand_object *)node->object;
819

820
	printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
821 822 823 824 825
	       (u32) operand->method.param_count);

	return AE_OK;
}

826 827 828
/*
 * ACPI device
 */
829
static int sony_nc_resume(struct acpi_device *device)
830
{
831
	struct sony_nc_value *item;
832

833
	for (item = sony_nc_values; item->name; item++) {
834 835 836 837
		int ret;

		if (!item->valid)
			continue;
838
		ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
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Len Brown 已提交
839
				       item->value, NULL);
840 841 842 843 844
		if (ret < 0) {
			printk("%s: %d\n", __FUNCTION__, ret);
			break;
		}
	}
845 846 847 848

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

849 850 851
	return 0;
}

852
static int sony_nc_add(struct acpi_device *device)
853 854
{
	acpi_status status;
855
	int result = 0;
856
	acpi_handle handle;
857
	struct sony_nc_value *item;
858

859 860 861
	printk(KERN_INFO DRV_PFX "%s v%s.\n",
		SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);

862
	sony_nc_acpi_device = device;
863
	strcpy(acpi_device_class(device), "sony/hotkey");
864

865
	sony_nc_acpi_handle = device->handle;
866

867 868 869 870 871 872 873 874 875
	/* 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;
	}

876
	if (debug) {
877
		status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
878 879
					     1, sony_walk_callback, NULL, NULL);
		if (ACPI_FAILURE(status)) {
880
			printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
881 882 883
			result = -ENODEV;
			goto outwalk;
		}
884
	}
885

886 887 888 889 890 891 892 893 894
	/* try to _INI the device if such method exists (ACPI spec 3.0-6.5.1
	 * should be respected as we already checked for the device presence above */
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, METHOD_NAME__INI, &handle))) {
		dprintk("Invoking _INI\n");
		if (ACPI_FAILURE(acpi_evaluate_object(sony_nc_acpi_handle, METHOD_NAME__INI,
						NULL, NULL)))
			dprintk("_INI Method failed\n");
	}

895 896 897 898 899 900 901 902
	/* setup input devices and helper fifo */
	result = sony_laptop_setup_input();
	if (result) {
		printk(KERN_ERR DRV_PFX
				"Unabe to create input devices.\n");
		goto outwalk;
	}

903
	status = acpi_install_notify_handler(sony_nc_acpi_handle,
904
					     ACPI_DEVICE_NOTIFY,
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905
					     sony_acpi_notify, NULL);
906
	if (ACPI_FAILURE(status)) {
907
		printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
908
		result = -ENODEV;
909
		goto outinput;
910 911
	}

912
	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
913
		sony_backlight_device = backlight_device_register("sony", NULL,
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914
								  NULL,
915
								  &sony_backlight_ops);
916

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917
		if (IS_ERR(sony_backlight_device)) {
918
			printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
919
			sony_backlight_device = NULL;
920 921
		} else {
			sony_backlight_device->props.brightness =
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922 923
			    sony_backlight_get_brightness
			    (sony_backlight_device);
924 925 926 927
			sony_backlight_device->props.max_brightness = 
			    SONY_MAX_BRIGHTNESS - 1;
		}

928
	}
929

930 931 932
	/* initialize models with specific requirements */
	dmi_check_system(sony_nc_ids);

933 934
	result = sony_pf_add();
	if (result)
935
		goto outbacklight;
936

937 938 939 940 941 942 943 944 945 946 947
	/* 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))) {
948 949
				dprintk("Found %s getter: %s\n",
						item->name, *item->acpiget);
950 951 952 953 954 955 956 957 958 959
				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))) {
960 961
				dprintk("Found %s setter: %s\n",
						item->name, *item->acpiset);
962 963 964 965 966 967 968 969 970 971 972 973 974 975
				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;
		}
	}

976 977
	return 0;

978 979 980 981 982
      out_sysfs:
	for (item = sony_nc_values; item->name; ++item) {
		device_remove_file(&sony_pf_device->dev, &item->devattr);
	}
	sony_pf_remove();
983

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984
      outbacklight:
985 986 987
	if (sony_backlight_device)
		backlight_device_unregister(sony_backlight_device);

988
	status = acpi_remove_notify_handler(sony_nc_acpi_handle,
989 990 991
					    ACPI_DEVICE_NOTIFY,
					    sony_acpi_notify);
	if (ACPI_FAILURE(status))
992
		printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
993 994 995 996

      outinput:
	sony_laptop_remove_input();

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997
      outwalk:
998 999 1000
	return result;
}

1001
static int sony_nc_remove(struct acpi_device *device, int type)
1002 1003
{
	acpi_status status;
1004
	struct sony_nc_value *item;
1005

1006 1007 1008
	if (sony_backlight_device)
		backlight_device_unregister(sony_backlight_device);

1009
	sony_nc_acpi_device = NULL;
1010

1011
	status = acpi_remove_notify_handler(sony_nc_acpi_handle,
1012 1013 1014
					    ACPI_DEVICE_NOTIFY,
					    sony_acpi_notify);
	if (ACPI_FAILURE(status))
1015
		printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
1016

1017 1018 1019 1020 1021
	for (item = sony_nc_values; item->name; ++item) {
		device_remove_file(&sony_pf_device->dev, &item->devattr);
	}

	sony_pf_remove();
1022
	sony_laptop_remove_input();
1023
	dprintk(SONY_NC_DRIVER_NAME " removed.\n");
1024 1025 1026 1027

	return 0;
}

1028 1029 1030 1031
static struct acpi_driver sony_nc_driver = {
	.name = SONY_NC_DRIVER_NAME,
	.class = SONY_NC_CLASS,
	.ids = SONY_NC_HID,
1032
	.owner = THIS_MODULE,
L
Len Brown 已提交
1033
	.ops = {
1034 1035 1036
		.add = sony_nc_add,
		.remove = sony_nc_remove,
		.resume = sony_nc_resume,
L
Len Brown 已提交
1037
		},
1038 1039
};

1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059
/*********** SPIC (SNY6001) Device ***********/

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

#define SONY_PIC_EV_MASK	0xff

struct sony_pic_ioport {
	struct acpi_resource_io	io;
	struct list_head	list;
};

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

struct sony_pic_dev {
	int			model;
1060 1061
	u8			camera_power;
	u8			bluetooth_power;
1062
	u8			wwan_power;
1063 1064 1065 1066 1067
	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;
1068
	struct mutex		lock;
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341
};

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

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

struct sonypi_event {
	u8	data;
	u8	event;
};

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

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

/* The set of possible capture button events */
static struct sonypi_event sonypi_captureev[] = {
	{ 0x05, SONYPI_EVENT_CAPTURE_PARTIALPRESSED },
	{ 0x07, SONYPI_EVENT_CAPTURE_PRESSED },
	{ 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 },
	{ 0x5c, SONYPI_EVENT_PKEY_P1 },
	{ 0, 0 }
};

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

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

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

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


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

/* The set of possible zoom events */
static struct sonypi_event sonypi_zoomev[] = {
	{ 0x39, SONYPI_EVENT_ZOOM_PRESSED },
	{ 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 }
};

static struct sonypi_eventtypes {
	int			model;
	u8			data;
	unsigned long		mask;
	struct sonypi_event *	events;
} sony_pic_eventtypes[] = {
	{ SONYPI_DEVICE_TYPE1, 0, 0xffffffff, sonypi_releaseev },
	{ SONYPI_DEVICE_TYPE1, 0x70, SONYPI_MEYE_MASK, sonypi_meyeev },
	{ SONYPI_DEVICE_TYPE1, 0x30, SONYPI_LID_MASK, sonypi_lidev },
	{ SONYPI_DEVICE_TYPE1, 0x60, SONYPI_CAPTURE_MASK, sonypi_captureev },
	{ SONYPI_DEVICE_TYPE1, 0x10, SONYPI_JOGGER_MASK, sonypi_joggerev },
	{ SONYPI_DEVICE_TYPE1, 0x20, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ SONYPI_DEVICE_TYPE1, 0x30, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
	{ SONYPI_DEVICE_TYPE1, 0x40, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ SONYPI_DEVICE_TYPE1, 0x30, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ SONYPI_DEVICE_TYPE1, 0x40, SONYPI_BATTERY_MASK, sonypi_batteryev },

	{ SONYPI_DEVICE_TYPE2, 0, 0xffffffff, sonypi_releaseev },
	{ SONYPI_DEVICE_TYPE2, 0x38, SONYPI_LID_MASK, sonypi_lidev },
	{ SONYPI_DEVICE_TYPE2, 0x11, SONYPI_JOGGER_MASK, sonypi_joggerev },
	{ SONYPI_DEVICE_TYPE2, 0x61, SONYPI_CAPTURE_MASK, sonypi_captureev },
	{ SONYPI_DEVICE_TYPE2, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ SONYPI_DEVICE_TYPE2, 0x31, SONYPI_BLUETOOTH_MASK, sonypi_blueev },
	{ SONYPI_DEVICE_TYPE2, 0x08, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ SONYPI_DEVICE_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev },
	{ SONYPI_DEVICE_TYPE2, 0x21, SONYPI_HELP_MASK, sonypi_helpev },
	{ SONYPI_DEVICE_TYPE2, 0x21, SONYPI_ZOOM_MASK, sonypi_zoomev },
	{ SONYPI_DEVICE_TYPE2, 0x20, SONYPI_THUMBPHRASE_MASK, sonypi_thumbphraseev },
	{ SONYPI_DEVICE_TYPE2, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ SONYPI_DEVICE_TYPE2, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
	{ SONYPI_DEVICE_TYPE2, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },

	{ SONYPI_DEVICE_TYPE3, 0, 0xffffffff, sonypi_releaseev },
	{ SONYPI_DEVICE_TYPE3, 0x21, SONYPI_FNKEY_MASK, sonypi_fnkeyev },
	{ SONYPI_DEVICE_TYPE3, 0x31, SONYPI_WIRELESS_MASK, sonypi_wlessev },
	{ SONYPI_DEVICE_TYPE3, 0x31, SONYPI_MEMORYSTICK_MASK, sonypi_memorystickev },
	{ SONYPI_DEVICE_TYPE3, 0x41, SONYPI_BATTERY_MASK, sonypi_batteryev },
	{ SONYPI_DEVICE_TYPE3, 0x31, SONYPI_PKEY_MASK, sonypi_pkeyev },
	{ 0 }
};

static int sony_pic_detect_device_type(void)
{
	struct pci_dev *pcidev;
	int model = 0;

	if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
				     PCI_DEVICE_ID_INTEL_82371AB_3, NULL)))
		model = SONYPI_DEVICE_TYPE1;

	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
					  PCI_DEVICE_ID_INTEL_ICH6_1, NULL)))
		model = SONYPI_DEVICE_TYPE3;

	else if ((pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
					  PCI_DEVICE_ID_INTEL_ICH7_1, NULL)))
		model = SONYPI_DEVICE_TYPE3;

	else
		model = SONYPI_DEVICE_TYPE2;

	if (pcidev)
		pci_dev_put(pcidev);

	printk(KERN_INFO DRV_PFX "detected Type%d model\n",
			model == SONYPI_DEVICE_TYPE1 ? 1 :
			model == SONYPI_DEVICE_TYPE2 ? 2 : 3);
	return model;
}

#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",	\
				__FILE__, __FUNCTION__, __LINE__);	\
}

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

	wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
			ITERATIONS_LONG);
	outb(dev, spic_dev.cur_ioport->io.minimum + 4);
	v1 = inb_p(spic_dev.cur_ioport->io.minimum + 4);
	v2 = inb_p(spic_dev.cur_ioport->io.minimum);
	dprintk("sony_pic_call1: 0x%.4x\n", (v2 << 8) | v1);
	return v2;
}

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

	wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
			ITERATIONS_LONG);
	outb(dev, spic_dev.cur_ioport->io.minimum + 4);
	wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2,
			ITERATIONS_LONG);
	outb(fn, spic_dev.cur_ioport->io.minimum);
	v1 = inb_p(spic_dev.cur_ioport->io.minimum);
	dprintk("sony_pic_call2: 0x%.4x\n", v1);
	return v1;
}

1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359
static u8 sony_pic_call3(u8 dev, u8 fn, u8 v)
{
	u8 v1;

	wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
	outb(dev, spic_dev.cur_ioport->io.minimum + 4);
	wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
	outb(fn, spic_dev.cur_ioport->io.minimum);
	wait_on_command(inb_p(spic_dev.cur_ioport->io.minimum + 4) & 2, ITERATIONS_LONG);
	outb(v, spic_dev.cur_ioport->io.minimum);
	v1 = inb_p(spic_dev.cur_ioport->io.minimum);
	dprintk("sony_pic_call3: 0x%.4x\n", v1);
	return v1;
}

/* camera tests and poweron/poweroff */
#define SONYPI_CAMERA_PICTURE		5
#define SONYPI_CAMERA_CONTROL		0x10
1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387

#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
1388

1389
static int __sony_pic_camera_ready(void)
1390 1391 1392 1393 1394 1395 1396
{
	u8 v;

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

1397
static int __sony_pic_camera_off(void)
1398
{
1399 1400 1401 1402 1403
	if (!camera) {
		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
		return -ENODEV;
	}

1404 1405 1406 1407
	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
				SONYPI_CAMERA_MUTE_MASK),
			ITERATIONS_SHORT);

1408 1409 1410 1411 1412
	if (spic_dev.camera_power) {
		sony_pic_call2(0x91, 0);
		spic_dev.camera_power = 0;
	}
	return 0;
1413 1414
}

1415
static int __sony_pic_camera_on(void)
1416
{
1417 1418 1419 1420 1421 1422
	int i, j, x;

	if (!camera) {
		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
		return -ENODEV;
	}
1423 1424

	if (spic_dev.camera_power)
1425
		return 0;
1426 1427 1428

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

1429
		for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
1430 1431 1432 1433
			msleep(10);
		sony_pic_call1(0x93);

		for (i = 400; i > 0; i--) {
1434
			if (__sony_pic_camera_ready())
1435 1436 1437 1438 1439 1440 1441 1442
				break;
			msleep(10);
		}
		if (i)
			break;
	}

	if (j == 0) {
1443
		printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
1444
		return -ENODEV;
1445 1446 1447 1448 1449 1450 1451
	}

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

	spic_dev.camera_power = 1;
1452
	return 0;
1453 1454
}

1455 1456 1457 1458 1459 1460 1461 1462 1463
/* 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) {
1464
	case SONY_PIC_COMMAND_SETCAMERA:
1465 1466 1467 1468 1469
		if (value)
			__sony_pic_camera_on();
		else
			__sony_pic_camera_off();
		break;
1470
	case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
1471 1472 1473
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
				ITERATIONS_SHORT);
		break;
1474
	case SONY_PIC_COMMAND_SETCAMERACONTRAST:
1475 1476 1477
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
				ITERATIONS_SHORT);
		break;
1478
	case SONY_PIC_COMMAND_SETCAMERAHUE:
1479 1480 1481
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
				ITERATIONS_SHORT);
		break;
1482
	case SONY_PIC_COMMAND_SETCAMERACOLOR:
1483 1484 1485
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
				ITERATIONS_SHORT);
		break;
1486
	case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
1487 1488 1489
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
				ITERATIONS_SHORT);
		break;
1490
	case SONY_PIC_COMMAND_SETCAMERAPICTURE:
1491 1492 1493
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
				ITERATIONS_SHORT);
		break;
1494
	case SONY_PIC_COMMAND_SETCAMERAAGC:
1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507
		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),
				ITERATIONS_SHORT);
		break;
	default:
		printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",
		       command);
		break;
	}
	mutex_unlock(&spic_dev.lock);
	return 0;
}
EXPORT_SYMBOL(sony_pic_camera_command);

1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545
/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */
static void sony_pic_set_wwanpower(u8 state)
{
	state = !!state;
	mutex_lock(&spic_dev.lock);
	if (spic_dev.wwan_power == state) {
		mutex_unlock(&spic_dev.lock);
		return;
	}
	sony_pic_call2(0xB0, state);
	spic_dev.wwan_power = state;
	mutex_unlock(&spic_dev.lock);
}

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

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

	return count;
}

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

1546
/* bluetooth subsystem power state */
1547
static void __sony_pic_set_bluetoothpower(u8 state)
1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565
{
	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);
1566 1567 1568
	mutex_lock(&spic_dev.lock);
	__sony_pic_set_bluetoothpower(value);
	mutex_unlock(&spic_dev.lock);
1569 1570 1571 1572 1573 1574 1575

	return count;
}

static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
1576 1577 1578 1579 1580
	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;
1581 1582 1583 1584 1585
}

/* fan speed */
/* FAN0 information (reverse engineered from ACPI tables) */
#define SONY_PIC_FAN0_STATUS	0x93
1586 1587 1588 1589 1590 1591 1592 1593 1594 1595
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);
}

1596 1597 1598 1599 1600 1601 1602 1603 1604
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);
1605
	if (sony_pic_set_fanspeed(value))
1606 1607 1608 1609 1610 1611 1612 1613 1614
		return -EIO;

	return count;
}

static ssize_t sony_pic_fanspeed_show(struct device *dev,
		struct device_attribute *attr, char *buffer)
{
	u8 value = 0;
1615
	if (sony_pic_get_fanspeed(&value))
1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626
		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);
1627
static SPIC_ATTR(wwanpower, 0644);
1628 1629 1630 1631
static SPIC_ATTR(fanspeed, 0644);

static struct attribute *spic_attributes[] = {
	&spic_attr_bluetoothpower.attr,
1632
	&spic_attr_wwanpower.attr,
1633 1634 1635 1636 1637 1638 1639 1640
	&spic_attr_fanspeed.attr,
	NULL
};

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

1641
/******** SONYPI compatibility **********/
1642
#ifdef CONFIG_SONYPI_COMPAT
1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752

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

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

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

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

static int sonypi_misc_release(struct inode *inode, struct file *file)
{
	sonypi_misc_fasync(-1, file, 0);
	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 */
	if (atomic_inc_return(&sonypi_compat.open_count) == 1)
		kfifo_reset(sonypi_compat.fifo);
	return 0;
}

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

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

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

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

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

	return ret;
}

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

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

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

1753
	mutex_lock(&spic_dev.lock);
1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836
	switch (cmd) {
	case SONYPI_IOCGBRT:
		if (sony_backlight_device == NULL) {
			ret = -EIO;
			break;
		}
		if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value)) {
			ret = -EIO;
			break;
		}
		val8 = ((value & 0xff) - 1) << 5;
		if (copy_to_user(argp, &val8, sizeof(val8)))
				ret = -EFAULT;
		break;
	case SONYPI_IOCSBRT:
		if (sony_backlight_device == NULL) {
			ret = -EIO;
			break;
		}
		if (copy_from_user(&val8, argp, sizeof(val8))) {
			ret = -EFAULT;
			break;
		}
		if (acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
				(val8 >> 5) + 1, NULL)) {
			ret = -EIO;
			break;
		}
		/* sync the backlight device status */
		sony_backlight_device->props.brightness =
		    sony_backlight_get_brightness(sony_backlight_device);
		break;
	case SONYPI_IOCGBAT1CAP:
		if (ec_read16(SONYPI_BAT1_FULL, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBAT1REM:
		if (ec_read16(SONYPI_BAT1_LEFT, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBAT2CAP:
		if (ec_read16(SONYPI_BAT2_FULL, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBAT2REM:
		if (ec_read16(SONYPI_BAT2_LEFT, &val16)) {
			ret = -EIO;
			break;
		}
		if (copy_to_user(argp, &val16, sizeof(val16)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBATFLAGS:
		if (ec_read(SONYPI_BAT_FLAGS, &val8)) {
			ret = -EIO;
			break;
		}
		val8 &= 0x07;
		if (copy_to_user(argp, &val8, sizeof(val8)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCGBLUE:
		val8 = spic_dev.bluetooth_power;
		if (copy_to_user(argp, &val8, sizeof(val8)))
			ret = -EFAULT;
		break;
	case SONYPI_IOCSBLUE:
		if (copy_from_user(&val8, argp, sizeof(val8))) {
			ret = -EFAULT;
			break;
		}
1837
		__sony_pic_set_bluetoothpower(val8);
1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867
		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;
	}
1868
	mutex_unlock(&spic_dev.lock);
1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916
	return ret;
}

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

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

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

static int sonypi_compat_init(void)
{
	int error;

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

	init_waitqueue_head(&sonypi_compat.fifo_proc_list);

	if (minor != -1)
		sonypi_misc_device.minor = minor;
	error = misc_register(&sonypi_misc_device);
	if (error) {
		printk(KERN_ERR DRV_PFX "misc_register failed\n");
		goto err_free_kfifo;
	}
	if (minor == -1)
1917
		printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935
		       sonypi_misc_device.minor);

	return 0;

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

static void sonypi_compat_exit(void)
{
	misc_deregister(&sonypi_misc_device);
	kfifo_free(sonypi_compat.fifo);
}
#else
static int sonypi_compat_init(void) { return 0; }
static void sonypi_compat_exit(void) { }
static void sonypi_compat_report_event(u8 event) { }
1936
#endif /* CONFIG_SONYPI_COMPAT */
1937

1938
/*
1939
 * ACPI callbacks
1940
 */
1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975
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:
	case ACPI_RESOURCE_TYPE_END_DEPENDENT:
		return AE_OK;

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

1976
				list_add_tail(&interrupt->list, &dev->interrupts);
1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997
				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;
			struct sony_pic_ioport *ioport = NULL;
			if (!io) {
				dprintk("Blank IO resource\n");
				return AE_OK;
			}

			ioport = kzalloc(sizeof(*ioport), GFP_KERNEL);
			if (!ioport)
				return AE_ERROR;

1998
			list_add_tail(&ioport->list, &dev->ioports);
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054
			memcpy(&ioport->io, io, sizeof(*io));
			return AE_OK;
		}
	default:
		dprintk("Resource %d isn't an IRQ nor an IO port\n",
				resource->type);

	case ACPI_RESOURCE_TYPE_END_TAG:
		return AE_OK;
	}
	return AE_CTRL_TERMINATE;
}

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

	if (!device)
		return -EINVAL;

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

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

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

/*
 *  Disable the spic device by calling its _DIS method
 */
static int sony_pic_disable(struct acpi_device *device)
{
R
Randy Dunlap 已提交
2055 2056
	if (ACPI_FAILURE(acpi_evaluate_object(device->handle,
			"_DIS", NULL, NULL)))
2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 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 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177
		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;
	struct {
		struct acpi_resource io_res;
		struct acpi_resource irq_res;
		struct acpi_resource end;
	} *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;

	/* setup io resource */
	resource->io_res.type = ACPI_RESOURCE_TYPE_IO;
	resource->io_res.length = sizeof(struct acpi_resource);
	memcpy(&resource->io_res.data.io, &ioport->io,
			sizeof(struct acpi_resource_io));

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

	resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;

	/* 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)) {
		printk(KERN_ERR DRV_PFX "Error evaluating _SRS");
		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;
	u32 port_val = 0;
	u8 ev = 0;
	u8 data_mask = 0;
	u8 device_event = 0;

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

	acpi_os_read_port(dev->cur_ioport->io.minimum, &port_val,
			dev->cur_ioport->io.address_length);
	ev = port_val & SONY_PIC_EV_MASK;
	data_mask = 0xff & (port_val >> (dev->cur_ioport->io.address_length - 8));

	dprintk("event (0x%.8x [%.2x] [%.2x]) at port 0x%.4x\n",
			port_val, ev, data_mask, dev->cur_ioport->io.minimum);

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

	for (i = 0; sony_pic_eventtypes[i].model; i++) {

		if (spic_dev.model != sony_pic_eventtypes[i].model)
			continue;

		if ((data_mask & sony_pic_eventtypes[i].data) !=
		    sony_pic_eventtypes[i].data)
			continue;

		if (!(mask & sony_pic_eventtypes[i].mask))
			continue;

		for (j = 0; sony_pic_eventtypes[i].events[j].event; j++) {
			if (ev == sony_pic_eventtypes[i].events[j].data) {
				device_event =
					sony_pic_eventtypes[i].events[j].event;
				goto found;
			}
		}
	}
	return IRQ_HANDLED;

found:
2178
	sony_laptop_report_input_event(device_event);
2179
	acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
2180
	sonypi_compat_report_event(device_event);
2181 2182 2183 2184 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194

	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;

2195 2196
	sonypi_compat_exit();

2197 2198 2199 2200 2201 2202 2203 2204 2205
	if (sony_pic_disable(device)) {
		printk(KERN_ERR DRV_PFX "Couldn't disable device.\n");
		return -ENXIO;
	}

	free_irq(spic_dev.cur_irq->irq.interrupts[0], &spic_dev);
	release_region(spic_dev.cur_ioport->io.minimum,
			spic_dev.cur_ioport->io.address_length);

2206
	sony_laptop_remove_input();
2207

2208 2209 2210 2211
	/* pf attrs */
	sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
	sony_pf_remove();

2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222
	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;

2223
	dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
2224 2225 2226 2227 2228 2229 2230 2231 2232
	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;

2233 2234
	printk(KERN_INFO DRV_PFX "%s v%s.\n",
		SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
2235 2236 2237 2238

	spic_dev.acpi_dev = device;
	strcpy(acpi_device_class(device), "sony/hotkey");
	spic_dev.model = sony_pic_detect_device_type();
2239
	mutex_init(&spic_dev.lock);
2240 2241 2242 2243 2244 2245 2246 2247 2248 2249

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

	/* setup input devices and helper fifo */
2250
	result = sony_laptop_setup_input();
2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 2299 2300
	if (result) {
		printk(KERN_ERR DRV_PFX
				"Unabe to create input devices.\n");
		goto err_free_resources;
	}

	/* request io port */
	list_for_each_entry(io, &spic_dev.ioports, list) {
		if (request_region(io->io.minimum, io->io.address_length,
					"Sony Programable I/O Device")) {
			dprintk("I/O port: 0x%.4x (0x%.4x) + 0x%.2x\n",
					io->io.minimum, io->io.maximum,
					io->io.address_length);
			spic_dev.cur_ioport = io;
			break;
		}
	}
	if (!spic_dev.cur_ioport) {
		printk(KERN_ERR DRV_PFX "Failed to request_region.\n");
		result = -ENODEV;
		goto err_remove_input;
	}

	/* request IRQ */
	list_for_each_entry(irq, &spic_dev.interrupts, list) {
		if (!request_irq(irq->irq.interrupts[0], sony_pic_irq,
					IRQF_SHARED, "sony-laptop", &spic_dev)) {
			dprintk("IRQ: %d - triggering: %d - "
					"polarity: %d - shr: %d\n",
					irq->irq.interrupts[0],
					irq->irq.triggering,
					irq->irq.polarity,
					irq->irq.sharable);
			spic_dev.cur_irq = irq;
			break;
		}
	}
	if (!spic_dev.cur_irq) {
		printk(KERN_ERR DRV_PFX "Failed to request_irq.\n");
		result = -ENODEV;
		goto err_release_region;
	}

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

2301 2302 2303 2304 2305 2306 2307 2308 2309 2310
	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;

2311 2312 2313
	if (sonypi_compat_init())
		goto err_remove_pf;

2314 2315
	return 0;

2316 2317 2318 2319 2320 2321
err_remove_pf:
	sony_pf_remove();

err_disable_device:
	sony_pic_disable(device);

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

err_release_region:
	release_region(spic_dev.cur_ioport->io.minimum,
			spic_dev.cur_ioport->io.address_length);

err_remove_input:
2330
	sony_laptop_remove_input();
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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;
}

static struct acpi_driver sony_pic_driver = {
	.name = SONY_PIC_DRIVER_NAME,
	.class = SONY_PIC_CLASS,
	.ids = SONY_PIC_HID,
	.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-"),
		},
	},
	{ }
};

2391
static int __init sony_laptop_init(void)
2392
{
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	int result;

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

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

	return 0;

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

2419
static void __exit sony_laptop_exit(void)
2420
{
2421
	acpi_bus_unregister_driver(&sony_nc_driver);
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	if (!no_spic)
		acpi_bus_unregister_driver(&sony_pic_driver);
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}

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module_init(sony_laptop_init);
module_exit(sony_laptop_exit);