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linux_dsm_epyc7002/drivers/misc/sony-laptop.c
malattia@linux.it 1b20d34406 sony-laptop: remove user visible camera controls as platform attributes 
Avoid giving the user the possibility to shoot his own foot and let
the meye driver enable/disable the camera wisely (PCI_ID based).

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
2007-04-28 22:06:03 -04:00

2292 lines
57 KiB
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/*
* ACPI Sony Notebook Control Driver (SNC and SPIC)
*
* Copyright (C) 2004-2005 Stelian Pop <stelian@popies.net>
* Copyright (C) 2007 Mattia Dongili <malattia@linux.it>
*
* Parts of this driver inspired from asus_acpi.c and ibm_acpi.c
* which are copyrighted by their respective authors.
*
* 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 Alcôve <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.
*
* 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>
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/err.h>
#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>
#include <acpi/acpi_drivers.h>
#include <acpi/acpi_bus.h>
#include <asm/uaccess.h>
#include <linux/sonypi.h>
#include <linux/sony-laptop.h>
#ifdef CONFIG_SONY_LAPTOP_OLD
#include <linux/poll.h>
#include <linux/miscdevice.h>
#endif
#define DRV_PFX "sony-laptop: "
#define dprintk(msg...) do { \
if (debug) printk(KERN_WARNING DRV_PFX msg); \
} while (0)
#define SONY_LAPTOP_DRIVER_VERSION "0.5"
#define SONY_NC_CLASS "sony-nc"
#define SONY_NC_HID "SNY5001"
#define SONY_NC_DRIVER_NAME "Sony Notebook Control Driver"
#define SONY_PIC_CLASS "sony-pic"
#define SONY_PIC_HID "SNY6001"
#define SONY_PIC_DRIVER_NAME "Sony Programmable IO Control Driver"
MODULE_AUTHOR("Stelian Pop, Mattia Dongili");
MODULE_DESCRIPTION("Sony laptop extras driver (SPIC and SNC ACPI device)");
MODULE_LICENSE("GPL");
MODULE_VERSION(SONY_LAPTOP_DRIVER_VERSION);
static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "set this to 1 (and RTFM) if you want to help "
"the development of this driver");
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,
"set this if you want to enable backward compatibility mode");
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)");
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)");
#ifdef CONFIG_SONY_LAPTOP_OLD
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
/*********** 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 },
{ 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);
}
/*********** 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 ***********/
/* 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
static ssize_t sony_nc_sysfs_show(struct device *, struct device_attribute *,
char *);
static ssize_t sony_nc_sysfs_store(struct device *, struct device_attribute *,
const char *, size_t);
static int boolean_validate(const int, const int);
static int brightness_default_validate(const int, const int);
struct sony_nc_value {
char *name; /* name of the entry */
char **acpiget; /* names of the ACPI get function */
char **acpiset; /* names of the ACPI set function */
int (*validate)(const int, const int); /* input/output validation */
int value; /* current setting */
int valid; /* Has ever been set */
int debug; /* active only in debug mode ? */
struct device_attribute devattr; /* sysfs atribute */
};
#define SNC_HANDLE_NAMES(_name, _values...) \
static char *snc_##_name[] = { _values, NULL }
#define SNC_HANDLE(_name, _getters, _setters, _validate, _debug) \
{ \
.name = __stringify(_name), \
.acpiget = _getters, \
.acpiset = _setters, \
.validate = _validate, \
.debug = _debug, \
.devattr = __ATTR(_name, 0, sony_nc_sysfs_show, sony_nc_sysfs_store), \
}
#define SNC_HANDLE_NULL { .name = NULL }
SNC_HANDLE_NAMES(fnkey_get, "GHKE");
SNC_HANDLE_NAMES(brightness_def_get, "GPBR");
SNC_HANDLE_NAMES(brightness_def_set, "SPBR");
SNC_HANDLE_NAMES(cdpower_get, "GCDP");
SNC_HANDLE_NAMES(cdpower_set, "SCDP", "CDPW");
SNC_HANDLE_NAMES(audiopower_get, "GAZP");
SNC_HANDLE_NAMES(audiopower_set, "AZPW");
SNC_HANDLE_NAMES(lanpower_get, "GLNP");
SNC_HANDLE_NAMES(lanpower_set, "LNPW");
SNC_HANDLE_NAMES(PID_get, "GPID");
SNC_HANDLE_NAMES(CTR_get, "GCTR");
SNC_HANDLE_NAMES(CTR_set, "SCTR");
SNC_HANDLE_NAMES(PCR_get, "GPCR");
SNC_HANDLE_NAMES(PCR_set, "SPCR");
SNC_HANDLE_NAMES(CMI_get, "GCMI");
SNC_HANDLE_NAMES(CMI_set, "SCMI");
static struct sony_nc_value sony_nc_values[] = {
SNC_HANDLE(brightness_default, snc_brightness_def_get,
snc_brightness_def_set, brightness_default_validate, 0),
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,
boolean_validate, 0),
SNC_HANDLE(lanpower, snc_lanpower_get, snc_lanpower_set,
boolean_validate, 1),
/* unknown methods */
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
};
static acpi_handle sony_nc_acpi_handle;
static struct acpi_device *sony_nc_acpi_device = NULL;
/*
* acpi_evaluate_object wrappers
*/
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;
}
printk(KERN_WARNING DRV_PFX "acpi_callreadfunc failed\n");
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) {
printk(KERN_WARNING DRV_PFX "acpi_evaluate_object bad "
"return type\n");
return -1;
}
*result = out_obj.integer.value;
}
return 0;
}
printk(KERN_WARNING DRV_PFX "acpi_evaluate_object failed\n");
return -1;
}
/*
* sony_nc_values input/output validate functions
*/
/* 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;
}
/*
* Sysfs show/store common to all sony_nc_values
*/
static ssize_t sony_nc_sysfs_show(struct device *dev, struct device_attribute *attr,
char *buffer)
{
int value;
struct sony_nc_value *item =
container_of(attr, struct sony_nc_value, devattr);
if (!*item->acpiget)
return -EIO;
if (acpi_callgetfunc(sony_nc_acpi_handle, *item->acpiget, &value) < 0)
return -EIO;
if (item->validate)
value = item->validate(SNC_VALIDATE_OUT, value);
return snprintf(buffer, PAGE_SIZE, "%d\n", value);
}
static ssize_t sony_nc_sysfs_store(struct device *dev,
struct device_attribute *attr,
const char *buffer, size_t count)
{
int value;
struct sony_nc_value *item =
container_of(attr, struct sony_nc_value, devattr);
if (!item->acpiset)
return -EIO;
if (count > 31)
return -EINVAL;
value = simple_strtoul(buffer, NULL, 10);
if (item->validate)
value = item->validate(SNC_VALIDATE_IN, value);
if (value < 0)
return value;
if (acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset, value, NULL) < 0)
return -EIO;
item->value = value;
item->valid = 1;
return count;
}
/*
* Backlight device
*/
static int sony_backlight_update_status(struct backlight_device *bd)
{
return acpi_callsetfunc(sony_nc_acpi_handle, "SBRT",
bd->props.brightness + 1, NULL);
}
static int sony_backlight_get_brightness(struct backlight_device *bd)
{
int value;
if (acpi_callgetfunc(sony_nc_acpi_handle, "GBRT", &value))
return 0;
/* brightness levels are 1-based, while backlight ones are 0-based */
return value - 1;
}
static struct backlight_device *sony_backlight_device;
static struct backlight_ops sony_backlight_ops = {
.update_status = sony_backlight_update_status,
.get_brightness = sony_backlight_get_brightness,
};
/*
* ACPI callbacks
*/
static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
{
dprintk("sony_acpi_notify, event: %d\n", event);
sony_laptop_report_input_event(event);
acpi_bus_generate_event(sony_nc_acpi_device, 1, event);
}
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;
node = (struct acpi_namespace_node *)handle;
operand = (union acpi_operand_object *)node->object;
printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", node->name.ascii,
(u32) operand->method.param_count);
return AE_OK;
}
/*
* ACPI device
*/
static int sony_nc_resume(struct acpi_device *device)
{
struct sony_nc_value *item;
for (item = sony_nc_values; item->name; item++) {
int ret;
if (!item->valid)
continue;
ret = acpi_callsetfunc(sony_nc_acpi_handle, *item->acpiset,
item->value, NULL);
if (ret < 0) {
printk("%s: %d\n", __FUNCTION__, ret);
break;
}
}
return 0;
}
static int sony_nc_add(struct acpi_device *device)
{
acpi_status status;
int result = 0;
acpi_handle handle;
struct sony_nc_value *item;
printk(KERN_INFO DRV_PFX "%s v%s.\n",
SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
sony_nc_acpi_device = device;
strcpy(acpi_device_class(device), "sony/hotkey");
sony_nc_acpi_handle = device->handle;
if (debug) {
status = acpi_walk_namespace(ACPI_TYPE_METHOD, sony_nc_acpi_handle,
1, sony_walk_callback, NULL, NULL);
if (ACPI_FAILURE(status)) {
printk(KERN_WARNING DRV_PFX "unable to walk acpi resources\n");
result = -ENODEV;
goto outwalk;
}
}
/* 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;
}
status = acpi_install_notify_handler(sony_nc_acpi_handle,
ACPI_DEVICE_NOTIFY,
sony_acpi_notify, NULL);
if (ACPI_FAILURE(status)) {
printk(KERN_WARNING DRV_PFX "unable to install notify handler\n");
result = -ENODEV;
goto outinput;
}
if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &handle))) {
sony_backlight_device = backlight_device_register("sony", NULL,
NULL,
&sony_backlight_ops);
if (IS_ERR(sony_backlight_device)) {
printk(KERN_WARNING DRV_PFX "unable to register backlight device\n");
sony_backlight_device = NULL;
} else {
sony_backlight_device->props.brightness =
sony_backlight_get_brightness
(sony_backlight_device);
sony_backlight_device->props.max_brightness =
SONY_MAX_BRIGHTNESS - 1;
}
}
result = sony_pf_add();
if (result)
goto outbacklight;
/* 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))) {
dprintk("Found %s getter: %s\n",
item->name, *item->acpiget);
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))) {
dprintk("Found %s setter: %s\n",
item->name, *item->acpiset);
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;
}
}
return 0;
out_sysfs:
for (item = sony_nc_values; item->name; ++item) {
device_remove_file(&sony_pf_device->dev, &item->devattr);
}
sony_pf_remove();
outbacklight:
if (sony_backlight_device)
backlight_device_unregister(sony_backlight_device);
status = acpi_remove_notify_handler(sony_nc_acpi_handle,
ACPI_DEVICE_NOTIFY,
sony_acpi_notify);
if (ACPI_FAILURE(status))
printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
outinput:
sony_laptop_remove_input();
outwalk:
return result;
}
static int sony_nc_remove(struct acpi_device *device, int type)
{
acpi_status status;
struct sony_nc_value *item;
if (sony_backlight_device)
backlight_device_unregister(sony_backlight_device);
sony_nc_acpi_device = NULL;
status = acpi_remove_notify_handler(sony_nc_acpi_handle,
ACPI_DEVICE_NOTIFY,
sony_acpi_notify);
if (ACPI_FAILURE(status))
printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
for (item = sony_nc_values; item->name; ++item) {
device_remove_file(&sony_pf_device->dev, &item->devattr);
}
sony_pf_remove();
sony_laptop_remove_input();
dprintk(SONY_NC_DRIVER_NAME " removed.\n");
return 0;
}
static struct acpi_driver sony_nc_driver = {
.name = SONY_NC_DRIVER_NAME,
.class = SONY_NC_CLASS,
.ids = SONY_NC_HID,
.owner = THIS_MODULE,
.ops = {
.add = sony_nc_add,
.remove = sony_nc_remove,
.resume = sony_nc_resume,
},
};
/*********** 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;
u8 camera_power;
u8 bluetooth_power;
u8 wwan_power;
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;
};
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;
}
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
#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
static int __sony_pic_camera_ready(void)
{
u8 v;
v = sony_pic_call2(0x8f, SONYPI_CAMERA_STATUS);
return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));
}
static int __sony_pic_camera_off(void)
{
if (!camera) {
printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
return -ENODEV;
}
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,
SONYPI_CAMERA_MUTE_MASK),
ITERATIONS_SHORT);
if (spic_dev.camera_power) {
sony_pic_call2(0x91, 0);
spic_dev.camera_power = 0;
}
return 0;
}
static int __sony_pic_camera_on(void)
{
int i, j, x;
if (!camera) {
printk(KERN_WARNING DRV_PFX "camera control not enabled\n");
return -ENODEV;
}
if (spic_dev.camera_power)
return 0;
for (j = 5; j > 0; j--) {
for (x = 0; x < 100 && sony_pic_call2(0x91, 0x1); x++)
msleep(10);
sony_pic_call1(0x93);
for (i = 400; i > 0; i--) {
if (__sony_pic_camera_ready())
break;
msleep(10);
}
if (i)
break;
}
if (j == 0) {
printk(KERN_WARNING DRV_PFX "failed to power on camera\n");
return -ENODEV;
}
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
0x5a),
ITERATIONS_SHORT);
spic_dev.camera_power = 1;
return 0;
}
/* 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) {
case SONY_PIC_COMMAND_SETCAMERA:
if (value)
__sony_pic_camera_on();
else
__sony_pic_camera_off();
break;
case SONY_PIC_COMMAND_SETCAMERABRIGHTNESS:
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),
ITERATIONS_SHORT);
break;
case SONY_PIC_COMMAND_SETCAMERACONTRAST:
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),
ITERATIONS_SHORT);
break;
case SONY_PIC_COMMAND_SETCAMERAHUE:
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),
ITERATIONS_SHORT);
break;
case SONY_PIC_COMMAND_SETCAMERACOLOR:
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),
ITERATIONS_SHORT);
break;
case SONY_PIC_COMMAND_SETCAMERASHARPNESS:
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),
ITERATIONS_SHORT);
break;
case SONY_PIC_COMMAND_SETCAMERAPICTURE:
wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),
ITERATIONS_SHORT);
break;
case SONY_PIC_COMMAND_SETCAMERAAGC:
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);
/* 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;
}
/* bluetooth subsystem power state */
static void __sony_pic_set_bluetoothpower(u8 state)
{
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);
mutex_lock(&spic_dev.lock);
__sony_pic_set_bluetoothpower(value);
mutex_unlock(&spic_dev.lock);
return count;
}
static ssize_t sony_pic_bluetoothpower_show(struct device *dev,
struct device_attribute *attr, char *buffer)
{
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;
}
/* fan speed */
/* FAN0 information (reverse engineered from ACPI tables) */
#define SONY_PIC_FAN0_STATUS 0x93
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);
}
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);
if (sony_pic_set_fanspeed(value))
return -EIO;
return count;
}
static ssize_t sony_pic_fanspeed_show(struct device *dev,
struct device_attribute *attr, char *buffer)
{
u8 value = 0;
if (sony_pic_get_fanspeed(&value))
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);
static SPIC_ATTR(wwanpower, 0644);
static SPIC_ATTR(fanspeed, 0644);
static struct attribute *spic_attributes[] = {
&spic_attr_bluetoothpower.attr,
&spic_attr_wwanpower.attr,
&spic_attr_fanspeed.attr,
NULL
};
static struct attribute_group spic_attribute_group = {
.attrs = spic_attributes
};
/******** SONYPI compatibility **********/
#ifdef CONFIG_SONY_LAPTOP_OLD
/* 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;
mutex_lock(&spic_dev.lock);
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;
}
__sony_pic_set_bluetoothpower(val8);
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;
}
mutex_unlock(&spic_dev.lock);
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)
printk(KERN_INFO DRV_PFX "device allocated minor is %d\n",
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) { }
#endif /* CONFIG_SONY_LAPTOP_OLD */
/*
* ACPI callbacks
*/
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;
list_add_tail(&interrupt->list, &dev->interrupts);
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;
list_add_tail(&ioport->list, &dev->ioports);
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)
{
if (ACPI_FAILURE(acpi_evaluate_object(device->handle, "_DIS", 0, NULL)))
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:
sony_laptop_report_input_event(device_event);
acpi_bus_generate_event(spic_dev.acpi_dev, 1, device_event);
sonypi_compat_report_event(device_event);
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;
sonypi_compat_exit();
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);
sony_laptop_remove_input();
/* pf attrs */
sysfs_remove_group(&sony_pf_device->dev.kobj, &spic_attribute_group);
sony_pf_remove();
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;
dprintk(SONY_PIC_DRIVER_NAME " removed.\n");
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;
printk(KERN_INFO DRV_PFX "%s v%s.\n",
SONY_PIC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
spic_dev.acpi_dev = device;
strcpy(acpi_device_class(device), "sony/hotkey");
spic_dev.model = sony_pic_detect_device_type();
mutex_init(&spic_dev.lock);
/* 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 */
result = sony_laptop_setup_input();
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;
}
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;
if (sonypi_compat_init())
goto err_remove_pf;
return 0;
err_remove_pf:
sony_pf_remove();
err_disable_device:
sony_pic_disable(device);
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:
sony_laptop_remove_input();
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-"),
},
},
{ }
};
static int __init sony_laptop_init(void)
{
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;
}
static void __exit sony_laptop_exit(void)
{
acpi_bus_unregister_driver(&sony_nc_driver);
if (!no_spic)
acpi_bus_unregister_driver(&sony_pic_driver);
}
module_init(sony_laptop_init);
module_exit(sony_laptop_exit);
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