1119 lines
26 KiB
C
1119 lines
26 KiB
C
/*
|
|
* eepc-laptop.c - Asus Eee PC extras
|
|
*
|
|
* Based on asus_acpi.c as patched for the Eee PC by Asus:
|
|
* ftp://ftp.asus.com/pub/ASUS/EeePC/701/ASUS_ACPI_071126.rar
|
|
* Based on eee.c from eeepc-linux
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/types.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/backlight.h>
|
|
#include <linux/fb.h>
|
|
#include <linux/hwmon.h>
|
|
#include <linux/hwmon-sysfs.h>
|
|
#include <acpi/acpi_drivers.h>
|
|
#include <acpi/acpi_bus.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/input.h>
|
|
#include <linux/rfkill.h>
|
|
#include <linux/pci.h>
|
|
|
|
#define EEEPC_LAPTOP_VERSION "0.1"
|
|
|
|
#define EEEPC_HOTK_NAME "Eee PC Hotkey Driver"
|
|
#define EEEPC_HOTK_FILE "eeepc"
|
|
#define EEEPC_HOTK_CLASS "hotkey"
|
|
#define EEEPC_HOTK_DEVICE_NAME "Hotkey"
|
|
#define EEEPC_HOTK_HID "ASUS010"
|
|
|
|
#define EEEPC_LOG EEEPC_HOTK_FILE ": "
|
|
#define EEEPC_ERR KERN_ERR EEEPC_LOG
|
|
#define EEEPC_WARNING KERN_WARNING EEEPC_LOG
|
|
#define EEEPC_NOTICE KERN_NOTICE EEEPC_LOG
|
|
#define EEEPC_INFO KERN_INFO EEEPC_LOG
|
|
|
|
/*
|
|
* Definitions for Asus EeePC
|
|
*/
|
|
#define NOTIFY_WLAN_ON 0x10
|
|
#define NOTIFY_BRN_MIN 0x20
|
|
#define NOTIFY_BRN_MAX 0x2f
|
|
|
|
enum {
|
|
DISABLE_ASL_WLAN = 0x0001,
|
|
DISABLE_ASL_BLUETOOTH = 0x0002,
|
|
DISABLE_ASL_IRDA = 0x0004,
|
|
DISABLE_ASL_CAMERA = 0x0008,
|
|
DISABLE_ASL_TV = 0x0010,
|
|
DISABLE_ASL_GPS = 0x0020,
|
|
DISABLE_ASL_DISPLAYSWITCH = 0x0040,
|
|
DISABLE_ASL_MODEM = 0x0080,
|
|
DISABLE_ASL_CARDREADER = 0x0100,
|
|
DISABLE_ASL_3G = 0x0200,
|
|
DISABLE_ASL_WIMAX = 0x0400,
|
|
DISABLE_ASL_HWCF = 0x0800
|
|
};
|
|
|
|
enum {
|
|
CM_ASL_WLAN = 0,
|
|
CM_ASL_BLUETOOTH,
|
|
CM_ASL_IRDA,
|
|
CM_ASL_1394,
|
|
CM_ASL_CAMERA,
|
|
CM_ASL_TV,
|
|
CM_ASL_GPS,
|
|
CM_ASL_DVDROM,
|
|
CM_ASL_DISPLAYSWITCH,
|
|
CM_ASL_PANELBRIGHT,
|
|
CM_ASL_BIOSFLASH,
|
|
CM_ASL_ACPIFLASH,
|
|
CM_ASL_CPUFV,
|
|
CM_ASL_CPUTEMPERATURE,
|
|
CM_ASL_FANCPU,
|
|
CM_ASL_FANCHASSIS,
|
|
CM_ASL_USBPORT1,
|
|
CM_ASL_USBPORT2,
|
|
CM_ASL_USBPORT3,
|
|
CM_ASL_MODEM,
|
|
CM_ASL_CARDREADER,
|
|
CM_ASL_3G,
|
|
CM_ASL_WIMAX,
|
|
CM_ASL_HWCF,
|
|
CM_ASL_LID,
|
|
CM_ASL_TYPE,
|
|
CM_ASL_PANELPOWER, /*P901*/
|
|
CM_ASL_TPD
|
|
};
|
|
|
|
static const char *cm_getv[] = {
|
|
"WLDG", "BTHG", NULL, NULL,
|
|
"CAMG", NULL, NULL, NULL,
|
|
NULL, "PBLG", NULL, NULL,
|
|
"CFVG", NULL, NULL, NULL,
|
|
"USBG", NULL, NULL, "MODG",
|
|
"CRDG", "M3GG", "WIMG", "HWCF",
|
|
"LIDG", "TYPE", "PBPG", "TPDG"
|
|
};
|
|
|
|
static const char *cm_setv[] = {
|
|
"WLDS", "BTHS", NULL, NULL,
|
|
"CAMS", NULL, NULL, NULL,
|
|
"SDSP", "PBLS", "HDPS", NULL,
|
|
"CFVS", NULL, NULL, NULL,
|
|
"USBG", NULL, NULL, "MODS",
|
|
"CRDS", "M3GS", "WIMS", NULL,
|
|
NULL, NULL, "PBPS", "TPDS"
|
|
};
|
|
|
|
#define EEEPC_EC "\\_SB.PCI0.SBRG.EC0."
|
|
|
|
#define EEEPC_EC_FAN_PWM EEEPC_EC "SC02" /* Fan PWM duty cycle (%) */
|
|
#define EEEPC_EC_SC02 0x63
|
|
#define EEEPC_EC_FAN_HRPM EEEPC_EC "SC05" /* High byte, fan speed (RPM) */
|
|
#define EEEPC_EC_FAN_LRPM EEEPC_EC "SC06" /* Low byte, fan speed (RPM) */
|
|
#define EEEPC_EC_FAN_CTRL EEEPC_EC "SFB3" /* Byte containing SF25 */
|
|
#define EEEPC_EC_SFB3 0xD3
|
|
|
|
/*
|
|
* This is the main structure, we can use it to store useful information
|
|
* about the hotk device
|
|
*/
|
|
struct eeepc_hotk {
|
|
struct acpi_device *device; /* the device we are in */
|
|
acpi_handle handle; /* the handle of the hotk device */
|
|
u32 cm_supported; /* the control methods supported
|
|
by this BIOS */
|
|
uint init_flag; /* Init flags */
|
|
u16 event_count[128]; /* count for each event */
|
|
struct input_dev *inputdev;
|
|
u16 *keycode_map;
|
|
struct rfkill *eeepc_wlan_rfkill;
|
|
struct rfkill *eeepc_bluetooth_rfkill;
|
|
};
|
|
|
|
/* The actual device the driver binds to */
|
|
static struct eeepc_hotk *ehotk;
|
|
|
|
/* Platform device/driver */
|
|
static struct platform_driver platform_driver = {
|
|
.driver = {
|
|
.name = EEEPC_HOTK_FILE,
|
|
.owner = THIS_MODULE,
|
|
}
|
|
};
|
|
|
|
static struct platform_device *platform_device;
|
|
|
|
struct key_entry {
|
|
char type;
|
|
u8 code;
|
|
u16 keycode;
|
|
};
|
|
|
|
enum { KE_KEY, KE_END };
|
|
|
|
static struct key_entry eeepc_keymap[] = {
|
|
/* Sleep already handled via generic ACPI code */
|
|
{KE_KEY, 0x10, KEY_WLAN },
|
|
{KE_KEY, 0x11, KEY_WLAN },
|
|
{KE_KEY, 0x12, KEY_PROG1 },
|
|
{KE_KEY, 0x13, KEY_MUTE },
|
|
{KE_KEY, 0x14, KEY_VOLUMEDOWN },
|
|
{KE_KEY, 0x15, KEY_VOLUMEUP },
|
|
{KE_KEY, 0x1a, KEY_COFFEE },
|
|
{KE_KEY, 0x1b, KEY_ZOOM },
|
|
{KE_KEY, 0x1c, KEY_PROG2 },
|
|
{KE_KEY, 0x1d, KEY_PROG3 },
|
|
{KE_KEY, NOTIFY_BRN_MIN, KEY_BRIGHTNESSDOWN },
|
|
{KE_KEY, NOTIFY_BRN_MIN + 2, KEY_BRIGHTNESSUP },
|
|
{KE_KEY, 0x30, KEY_SWITCHVIDEOMODE },
|
|
{KE_KEY, 0x31, KEY_SWITCHVIDEOMODE },
|
|
{KE_KEY, 0x32, KEY_SWITCHVIDEOMODE },
|
|
{KE_END, 0},
|
|
};
|
|
|
|
/*
|
|
* The hotkey driver declaration
|
|
*/
|
|
static int eeepc_hotk_add(struct acpi_device *device);
|
|
static int eeepc_hotk_remove(struct acpi_device *device, int type);
|
|
static int eeepc_hotk_resume(struct acpi_device *device);
|
|
static void eeepc_hotk_notify(struct acpi_device *device, u32 event);
|
|
|
|
static const struct acpi_device_id eeepc_device_ids[] = {
|
|
{EEEPC_HOTK_HID, 0},
|
|
{"", 0},
|
|
};
|
|
MODULE_DEVICE_TABLE(acpi, eeepc_device_ids);
|
|
|
|
static struct acpi_driver eeepc_hotk_driver = {
|
|
.name = EEEPC_HOTK_NAME,
|
|
.class = EEEPC_HOTK_CLASS,
|
|
.ids = eeepc_device_ids,
|
|
.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
|
|
.ops = {
|
|
.add = eeepc_hotk_add,
|
|
.remove = eeepc_hotk_remove,
|
|
.resume = eeepc_hotk_resume,
|
|
.notify = eeepc_hotk_notify,
|
|
},
|
|
};
|
|
|
|
/* The backlight device /sys/class/backlight */
|
|
static struct backlight_device *eeepc_backlight_device;
|
|
|
|
/* The hwmon device */
|
|
static struct device *eeepc_hwmon_device;
|
|
|
|
/*
|
|
* The backlight class declaration
|
|
*/
|
|
static int read_brightness(struct backlight_device *bd);
|
|
static int update_bl_status(struct backlight_device *bd);
|
|
static struct backlight_ops eeepcbl_ops = {
|
|
.get_brightness = read_brightness,
|
|
.update_status = update_bl_status,
|
|
};
|
|
|
|
MODULE_AUTHOR("Corentin Chary, Eric Cooper");
|
|
MODULE_DESCRIPTION(EEEPC_HOTK_NAME);
|
|
MODULE_LICENSE("GPL");
|
|
|
|
/*
|
|
* ACPI Helpers
|
|
*/
|
|
static int write_acpi_int(acpi_handle handle, const char *method, int val,
|
|
struct acpi_buffer *output)
|
|
{
|
|
struct acpi_object_list params;
|
|
union acpi_object in_obj;
|
|
acpi_status status;
|
|
|
|
params.count = 1;
|
|
params.pointer = &in_obj;
|
|
in_obj.type = ACPI_TYPE_INTEGER;
|
|
in_obj.integer.value = val;
|
|
|
|
status = acpi_evaluate_object(handle, (char *)method, ¶ms, output);
|
|
return (status == AE_OK ? 0 : -1);
|
|
}
|
|
|
|
static int read_acpi_int(acpi_handle handle, const char *method, int *val)
|
|
{
|
|
acpi_status status;
|
|
unsigned long long result;
|
|
|
|
status = acpi_evaluate_integer(handle, (char *)method, NULL, &result);
|
|
if (ACPI_FAILURE(status)) {
|
|
*val = -1;
|
|
return -1;
|
|
} else {
|
|
*val = result;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int set_acpi(int cm, int value)
|
|
{
|
|
if (ehotk->cm_supported & (0x1 << cm)) {
|
|
const char *method = cm_setv[cm];
|
|
if (method == NULL)
|
|
return -ENODEV;
|
|
if (write_acpi_int(ehotk->handle, method, value, NULL))
|
|
printk(EEEPC_WARNING "Error writing %s\n", method);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int get_acpi(int cm)
|
|
{
|
|
int value = -1;
|
|
if ((ehotk->cm_supported & (0x1 << cm))) {
|
|
const char *method = cm_getv[cm];
|
|
if (method == NULL)
|
|
return -ENODEV;
|
|
if (read_acpi_int(ehotk->handle, method, &value))
|
|
printk(EEEPC_WARNING "Error reading %s\n", method);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
/*
|
|
* Backlight
|
|
*/
|
|
static int read_brightness(struct backlight_device *bd)
|
|
{
|
|
return get_acpi(CM_ASL_PANELBRIGHT);
|
|
}
|
|
|
|
static int set_brightness(struct backlight_device *bd, int value)
|
|
{
|
|
value = max(0, min(15, value));
|
|
return set_acpi(CM_ASL_PANELBRIGHT, value);
|
|
}
|
|
|
|
static int update_bl_status(struct backlight_device *bd)
|
|
{
|
|
return set_brightness(bd, bd->props.brightness);
|
|
}
|
|
|
|
/*
|
|
* Rfkill helpers
|
|
*/
|
|
|
|
static bool eeepc_wlan_rfkill_blocked(void)
|
|
{
|
|
if (get_acpi(CM_ASL_WLAN) == 1)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
static int eeepc_rfkill_set(void *data, bool blocked)
|
|
{
|
|
unsigned long asl = (unsigned long)data;
|
|
return set_acpi(asl, !blocked);
|
|
}
|
|
|
|
static const struct rfkill_ops eeepc_rfkill_ops = {
|
|
.set_block = eeepc_rfkill_set,
|
|
};
|
|
|
|
static void __init eeepc_enable_camera(void)
|
|
{
|
|
/*
|
|
* If the following call to set_acpi() fails, it's because there's no
|
|
* camera so we can ignore the error.
|
|
*/
|
|
set_acpi(CM_ASL_CAMERA, 1);
|
|
}
|
|
|
|
/*
|
|
* Sys helpers
|
|
*/
|
|
static int parse_arg(const char *buf, unsigned long count, int *val)
|
|
{
|
|
if (!count)
|
|
return 0;
|
|
if (sscanf(buf, "%i", val) != 1)
|
|
return -EINVAL;
|
|
return count;
|
|
}
|
|
|
|
static ssize_t store_sys_acpi(int cm, const char *buf, size_t count)
|
|
{
|
|
int rv, value;
|
|
|
|
rv = parse_arg(buf, count, &value);
|
|
if (rv > 0)
|
|
set_acpi(cm, value);
|
|
return rv;
|
|
}
|
|
|
|
static ssize_t show_sys_acpi(int cm, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", get_acpi(cm));
|
|
}
|
|
|
|
#define EEEPC_CREATE_DEVICE_ATTR(_name, _cm) \
|
|
static ssize_t show_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
char *buf) \
|
|
{ \
|
|
return show_sys_acpi(_cm, buf); \
|
|
} \
|
|
static ssize_t store_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
const char *buf, size_t count) \
|
|
{ \
|
|
return store_sys_acpi(_cm, buf, count); \
|
|
} \
|
|
static struct device_attribute dev_attr_##_name = { \
|
|
.attr = { \
|
|
.name = __stringify(_name), \
|
|
.mode = 0644 }, \
|
|
.show = show_##_name, \
|
|
.store = store_##_name, \
|
|
}
|
|
|
|
EEEPC_CREATE_DEVICE_ATTR(camera, CM_ASL_CAMERA);
|
|
EEEPC_CREATE_DEVICE_ATTR(cardr, CM_ASL_CARDREADER);
|
|
EEEPC_CREATE_DEVICE_ATTR(disp, CM_ASL_DISPLAYSWITCH);
|
|
|
|
struct eeepc_cpufv {
|
|
int num;
|
|
int cur;
|
|
};
|
|
|
|
static int get_cpufv(struct eeepc_cpufv *c)
|
|
{
|
|
c->cur = get_acpi(CM_ASL_CPUFV);
|
|
c->num = (c->cur >> 8) & 0xff;
|
|
c->cur &= 0xff;
|
|
if (c->cur < 0 || c->num <= 0 || c->num > 12)
|
|
return -ENODEV;
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t show_available_cpufv(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct eeepc_cpufv c;
|
|
int i;
|
|
ssize_t len = 0;
|
|
|
|
if (get_cpufv(&c))
|
|
return -ENODEV;
|
|
for (i = 0; i < c.num; i++)
|
|
len += sprintf(buf + len, "%d ", i);
|
|
len += sprintf(buf + len, "\n");
|
|
return len;
|
|
}
|
|
|
|
static ssize_t show_cpufv(struct device *dev,
|
|
struct device_attribute *attr,
|
|
char *buf)
|
|
{
|
|
struct eeepc_cpufv c;
|
|
|
|
if (get_cpufv(&c))
|
|
return -ENODEV;
|
|
return sprintf(buf, "%#x\n", (c.num << 8) | c.cur);
|
|
}
|
|
|
|
static ssize_t store_cpufv(struct device *dev,
|
|
struct device_attribute *attr,
|
|
const char *buf, size_t count)
|
|
{
|
|
struct eeepc_cpufv c;
|
|
int rv, value;
|
|
|
|
if (get_cpufv(&c))
|
|
return -ENODEV;
|
|
rv = parse_arg(buf, count, &value);
|
|
if (rv < 0)
|
|
return rv;
|
|
if (!rv || value < 0 || value >= c.num)
|
|
return -EINVAL;
|
|
set_acpi(CM_ASL_CPUFV, value);
|
|
return rv;
|
|
}
|
|
|
|
static struct device_attribute dev_attr_cpufv = {
|
|
.attr = {
|
|
.name = "cpufv",
|
|
.mode = 0644 },
|
|
.show = show_cpufv,
|
|
.store = store_cpufv
|
|
};
|
|
|
|
static struct device_attribute dev_attr_available_cpufv = {
|
|
.attr = {
|
|
.name = "available_cpufv",
|
|
.mode = 0444 },
|
|
.show = show_available_cpufv
|
|
};
|
|
|
|
static struct attribute *platform_attributes[] = {
|
|
&dev_attr_camera.attr,
|
|
&dev_attr_cardr.attr,
|
|
&dev_attr_disp.attr,
|
|
&dev_attr_cpufv.attr,
|
|
&dev_attr_available_cpufv.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group platform_attribute_group = {
|
|
.attrs = platform_attributes
|
|
};
|
|
|
|
/*
|
|
* Hotkey functions
|
|
*/
|
|
static struct key_entry *eepc_get_entry_by_scancode(int code)
|
|
{
|
|
struct key_entry *key;
|
|
|
|
for (key = eeepc_keymap; key->type != KE_END; key++)
|
|
if (code == key->code)
|
|
return key;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static struct key_entry *eepc_get_entry_by_keycode(int code)
|
|
{
|
|
struct key_entry *key;
|
|
|
|
for (key = eeepc_keymap; key->type != KE_END; key++)
|
|
if (code == key->keycode && key->type == KE_KEY)
|
|
return key;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static int eeepc_getkeycode(struct input_dev *dev, int scancode, int *keycode)
|
|
{
|
|
struct key_entry *key = eepc_get_entry_by_scancode(scancode);
|
|
|
|
if (key && key->type == KE_KEY) {
|
|
*keycode = key->keycode;
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int eeepc_setkeycode(struct input_dev *dev, int scancode, int keycode)
|
|
{
|
|
struct key_entry *key;
|
|
int old_keycode;
|
|
|
|
if (keycode < 0 || keycode > KEY_MAX)
|
|
return -EINVAL;
|
|
|
|
key = eepc_get_entry_by_scancode(scancode);
|
|
if (key && key->type == KE_KEY) {
|
|
old_keycode = key->keycode;
|
|
key->keycode = keycode;
|
|
set_bit(keycode, dev->keybit);
|
|
if (!eepc_get_entry_by_keycode(old_keycode))
|
|
clear_bit(old_keycode, dev->keybit);
|
|
return 0;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int eeepc_hotk_check(void)
|
|
{
|
|
const struct key_entry *key;
|
|
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
|
|
int result;
|
|
|
|
result = acpi_bus_get_status(ehotk->device);
|
|
if (result)
|
|
return result;
|
|
if (ehotk->device->status.present) {
|
|
if (write_acpi_int(ehotk->handle, "INIT", ehotk->init_flag,
|
|
&buffer)) {
|
|
printk(EEEPC_ERR "Hotkey initialization failed\n");
|
|
return -ENODEV;
|
|
} else {
|
|
printk(EEEPC_NOTICE "Hotkey init flags 0x%x\n",
|
|
ehotk->init_flag);
|
|
}
|
|
/* get control methods supported */
|
|
if (read_acpi_int(ehotk->handle, "CMSG"
|
|
, &ehotk->cm_supported)) {
|
|
printk(EEEPC_ERR
|
|
"Get control methods supported failed\n");
|
|
return -ENODEV;
|
|
} else {
|
|
printk(EEEPC_INFO
|
|
"Get control methods supported: 0x%x\n",
|
|
ehotk->cm_supported);
|
|
}
|
|
ehotk->inputdev = input_allocate_device();
|
|
if (!ehotk->inputdev) {
|
|
printk(EEEPC_INFO "Unable to allocate input device\n");
|
|
return 0;
|
|
}
|
|
ehotk->inputdev->name = "Asus EeePC extra buttons";
|
|
ehotk->inputdev->phys = EEEPC_HOTK_FILE "/input0";
|
|
ehotk->inputdev->id.bustype = BUS_HOST;
|
|
ehotk->inputdev->getkeycode = eeepc_getkeycode;
|
|
ehotk->inputdev->setkeycode = eeepc_setkeycode;
|
|
|
|
for (key = eeepc_keymap; key->type != KE_END; key++) {
|
|
switch (key->type) {
|
|
case KE_KEY:
|
|
set_bit(EV_KEY, ehotk->inputdev->evbit);
|
|
set_bit(key->keycode, ehotk->inputdev->keybit);
|
|
break;
|
|
}
|
|
}
|
|
result = input_register_device(ehotk->inputdev);
|
|
if (result) {
|
|
printk(EEEPC_INFO "Unable to register input device\n");
|
|
input_free_device(ehotk->inputdev);
|
|
return 0;
|
|
}
|
|
} else {
|
|
printk(EEEPC_ERR "Hotkey device not present, aborting\n");
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int notify_brn(void)
|
|
{
|
|
/* returns the *previous* brightness, or -1 */
|
|
struct backlight_device *bd = eeepc_backlight_device;
|
|
if (bd) {
|
|
int old = bd->props.brightness;
|
|
bd->props.brightness = read_brightness(bd);
|
|
return old;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static void eeepc_rfkill_hotplug(void)
|
|
{
|
|
struct pci_dev *dev;
|
|
struct pci_bus *bus = pci_find_bus(0, 1);
|
|
bool blocked;
|
|
|
|
if (!bus) {
|
|
printk(EEEPC_WARNING "Unable to find PCI bus 1?\n");
|
|
return;
|
|
}
|
|
|
|
blocked = eeepc_wlan_rfkill_blocked();
|
|
if (!blocked) {
|
|
dev = pci_get_slot(bus, 0);
|
|
if (dev) {
|
|
/* Device already present */
|
|
pci_dev_put(dev);
|
|
return;
|
|
}
|
|
dev = pci_scan_single_device(bus, 0);
|
|
if (dev) {
|
|
pci_bus_assign_resources(bus);
|
|
if (pci_bus_add_device(dev))
|
|
printk(EEEPC_ERR "Unable to hotplug wifi\n");
|
|
}
|
|
} else {
|
|
dev = pci_get_slot(bus, 0);
|
|
if (dev) {
|
|
pci_remove_bus_device(dev);
|
|
pci_dev_put(dev);
|
|
}
|
|
}
|
|
|
|
rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill, blocked);
|
|
}
|
|
|
|
static void eeepc_rfkill_notify(acpi_handle handle, u32 event, void *data)
|
|
{
|
|
if (event != ACPI_NOTIFY_BUS_CHECK)
|
|
return;
|
|
|
|
eeepc_rfkill_hotplug();
|
|
}
|
|
|
|
static void eeepc_hotk_notify(struct acpi_device *device, u32 event)
|
|
{
|
|
static struct key_entry *key;
|
|
u16 count;
|
|
int brn = -ENODEV;
|
|
|
|
if (!ehotk)
|
|
return;
|
|
if (event > ACPI_MAX_SYS_NOTIFY)
|
|
return;
|
|
if (event >= NOTIFY_BRN_MIN && event <= NOTIFY_BRN_MAX)
|
|
brn = notify_brn();
|
|
count = ehotk->event_count[event % 128]++;
|
|
acpi_bus_generate_proc_event(ehotk->device, event, count);
|
|
acpi_bus_generate_netlink_event(ehotk->device->pnp.device_class,
|
|
dev_name(&ehotk->device->dev), event,
|
|
count);
|
|
if (ehotk->inputdev) {
|
|
if (brn != -ENODEV) {
|
|
/* brightness-change events need special
|
|
* handling for conversion to key events
|
|
*/
|
|
if (brn < 0)
|
|
brn = event;
|
|
else
|
|
brn += NOTIFY_BRN_MIN;
|
|
if (event < brn)
|
|
event = NOTIFY_BRN_MIN; /* brightness down */
|
|
else if (event > brn)
|
|
event = NOTIFY_BRN_MIN + 2; /* ... up */
|
|
else
|
|
event = NOTIFY_BRN_MIN + 1; /* ... unchanged */
|
|
}
|
|
key = eepc_get_entry_by_scancode(event);
|
|
if (key) {
|
|
switch (key->type) {
|
|
case KE_KEY:
|
|
input_report_key(ehotk->inputdev, key->keycode,
|
|
1);
|
|
input_sync(ehotk->inputdev);
|
|
input_report_key(ehotk->inputdev, key->keycode,
|
|
0);
|
|
input_sync(ehotk->inputdev);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int eeepc_register_rfkill_notifier(char *node)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
acpi_handle handle;
|
|
|
|
status = acpi_get_handle(NULL, node, &handle);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
status = acpi_install_notify_handler(handle,
|
|
ACPI_SYSTEM_NOTIFY,
|
|
eeepc_rfkill_notify,
|
|
NULL);
|
|
if (ACPI_FAILURE(status))
|
|
printk(EEEPC_WARNING
|
|
"Failed to register notify on %s\n", node);
|
|
} else
|
|
return -ENODEV;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void eeepc_unregister_rfkill_notifier(char *node)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
acpi_handle handle;
|
|
|
|
status = acpi_get_handle(NULL, node, &handle);
|
|
|
|
if (ACPI_SUCCESS(status)) {
|
|
status = acpi_remove_notify_handler(handle,
|
|
ACPI_SYSTEM_NOTIFY,
|
|
eeepc_rfkill_notify);
|
|
if (ACPI_FAILURE(status))
|
|
printk(EEEPC_ERR
|
|
"Error removing rfkill notify handler %s\n",
|
|
node);
|
|
}
|
|
}
|
|
|
|
static int eeepc_hotk_add(struct acpi_device *device)
|
|
{
|
|
int result;
|
|
|
|
if (!device)
|
|
return -EINVAL;
|
|
printk(EEEPC_NOTICE EEEPC_HOTK_NAME "\n");
|
|
ehotk = kzalloc(sizeof(struct eeepc_hotk), GFP_KERNEL);
|
|
if (!ehotk)
|
|
return -ENOMEM;
|
|
ehotk->init_flag = DISABLE_ASL_WLAN | DISABLE_ASL_DISPLAYSWITCH;
|
|
ehotk->handle = device->handle;
|
|
strcpy(acpi_device_name(device), EEEPC_HOTK_DEVICE_NAME);
|
|
strcpy(acpi_device_class(device), EEEPC_HOTK_CLASS);
|
|
device->driver_data = ehotk;
|
|
ehotk->device = device;
|
|
result = eeepc_hotk_check();
|
|
if (result)
|
|
goto ehotk_fail;
|
|
|
|
eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P6");
|
|
eeepc_register_rfkill_notifier("\\_SB.PCI0.P0P7");
|
|
|
|
if (get_acpi(CM_ASL_WLAN) != -1) {
|
|
ehotk->eeepc_wlan_rfkill = rfkill_alloc("eeepc-wlan",
|
|
&device->dev,
|
|
RFKILL_TYPE_WLAN,
|
|
&eeepc_rfkill_ops,
|
|
(void *)CM_ASL_WLAN);
|
|
|
|
if (!ehotk->eeepc_wlan_rfkill)
|
|
goto wlan_fail;
|
|
|
|
rfkill_init_sw_state(ehotk->eeepc_wlan_rfkill,
|
|
get_acpi(CM_ASL_WLAN) != 1);
|
|
result = rfkill_register(ehotk->eeepc_wlan_rfkill);
|
|
if (result)
|
|
goto wlan_fail;
|
|
}
|
|
|
|
if (get_acpi(CM_ASL_BLUETOOTH) != -1) {
|
|
ehotk->eeepc_bluetooth_rfkill =
|
|
rfkill_alloc("eeepc-bluetooth",
|
|
&device->dev,
|
|
RFKILL_TYPE_BLUETOOTH,
|
|
&eeepc_rfkill_ops,
|
|
(void *)CM_ASL_BLUETOOTH);
|
|
|
|
if (!ehotk->eeepc_bluetooth_rfkill)
|
|
goto bluetooth_fail;
|
|
|
|
rfkill_init_sw_state(ehotk->eeepc_bluetooth_rfkill,
|
|
get_acpi(CM_ASL_BLUETOOTH) != 1);
|
|
result = rfkill_register(ehotk->eeepc_bluetooth_rfkill);
|
|
if (result)
|
|
goto bluetooth_fail;
|
|
}
|
|
|
|
return 0;
|
|
|
|
bluetooth_fail:
|
|
rfkill_destroy(ehotk->eeepc_bluetooth_rfkill);
|
|
rfkill_unregister(ehotk->eeepc_wlan_rfkill);
|
|
wlan_fail:
|
|
rfkill_destroy(ehotk->eeepc_wlan_rfkill);
|
|
eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
|
|
eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
|
|
ehotk_fail:
|
|
kfree(ehotk);
|
|
ehotk = NULL;
|
|
|
|
return result;
|
|
}
|
|
|
|
static int eeepc_hotk_remove(struct acpi_device *device, int type)
|
|
{
|
|
if (!device || !acpi_driver_data(device))
|
|
return -EINVAL;
|
|
|
|
eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P6");
|
|
eeepc_unregister_rfkill_notifier("\\_SB.PCI0.P0P7");
|
|
|
|
kfree(ehotk);
|
|
return 0;
|
|
}
|
|
|
|
static int eeepc_hotk_resume(struct acpi_device *device)
|
|
{
|
|
if (ehotk->eeepc_wlan_rfkill) {
|
|
bool wlan;
|
|
|
|
/* Workaround - it seems that _PTS disables the wireless
|
|
without notification or changing the value read by WLAN.
|
|
Normally this is fine because the correct value is restored
|
|
from the non-volatile storage on resume, but we need to do
|
|
it ourself if case suspend is aborted, or we lose wireless.
|
|
*/
|
|
wlan = get_acpi(CM_ASL_WLAN);
|
|
set_acpi(CM_ASL_WLAN, wlan);
|
|
|
|
rfkill_set_sw_state(ehotk->eeepc_wlan_rfkill,
|
|
wlan != 1);
|
|
|
|
eeepc_rfkill_hotplug();
|
|
}
|
|
|
|
if (ehotk->eeepc_bluetooth_rfkill)
|
|
rfkill_set_sw_state(ehotk->eeepc_bluetooth_rfkill,
|
|
get_acpi(CM_ASL_BLUETOOTH) != 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Hwmon
|
|
*/
|
|
static int eeepc_get_fan_pwm(void)
|
|
{
|
|
int value = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_PWM, &value);
|
|
value = value * 255 / 100;
|
|
return (value);
|
|
}
|
|
|
|
static void eeepc_set_fan_pwm(int value)
|
|
{
|
|
value = SENSORS_LIMIT(value, 0, 255);
|
|
value = value * 100 / 255;
|
|
ec_write(EEEPC_EC_SC02, value);
|
|
}
|
|
|
|
static int eeepc_get_fan_rpm(void)
|
|
{
|
|
int high = 0;
|
|
int low = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_HRPM, &high);
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_LRPM, &low);
|
|
return (high << 8 | low);
|
|
}
|
|
|
|
static int eeepc_get_fan_ctrl(void)
|
|
{
|
|
int value = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value);
|
|
return ((value & 0x02 ? 1 : 0));
|
|
}
|
|
|
|
static void eeepc_set_fan_ctrl(int manual)
|
|
{
|
|
int value = 0;
|
|
|
|
read_acpi_int(NULL, EEEPC_EC_FAN_CTRL, &value);
|
|
if (manual)
|
|
value |= 0x02;
|
|
else
|
|
value &= ~0x02;
|
|
ec_write(EEEPC_EC_SFB3, value);
|
|
}
|
|
|
|
static ssize_t store_sys_hwmon(void (*set)(int), const char *buf, size_t count)
|
|
{
|
|
int rv, value;
|
|
|
|
rv = parse_arg(buf, count, &value);
|
|
if (rv > 0)
|
|
set(value);
|
|
return rv;
|
|
}
|
|
|
|
static ssize_t show_sys_hwmon(int (*get)(void), char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", get());
|
|
}
|
|
|
|
#define EEEPC_CREATE_SENSOR_ATTR(_name, _mode, _set, _get) \
|
|
static ssize_t show_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
char *buf) \
|
|
{ \
|
|
return show_sys_hwmon(_set, buf); \
|
|
} \
|
|
static ssize_t store_##_name(struct device *dev, \
|
|
struct device_attribute *attr, \
|
|
const char *buf, size_t count) \
|
|
{ \
|
|
return store_sys_hwmon(_get, buf, count); \
|
|
} \
|
|
static SENSOR_DEVICE_ATTR(_name, _mode, show_##_name, store_##_name, 0);
|
|
|
|
EEEPC_CREATE_SENSOR_ATTR(fan1_input, S_IRUGO, eeepc_get_fan_rpm, NULL);
|
|
EEEPC_CREATE_SENSOR_ATTR(pwm1, S_IRUGO | S_IWUSR,
|
|
eeepc_get_fan_pwm, eeepc_set_fan_pwm);
|
|
EEEPC_CREATE_SENSOR_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
|
|
eeepc_get_fan_ctrl, eeepc_set_fan_ctrl);
|
|
|
|
static ssize_t
|
|
show_name(struct device *dev, struct device_attribute *attr, char *buf)
|
|
{
|
|
return sprintf(buf, "eeepc\n");
|
|
}
|
|
static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
|
|
|
|
static struct attribute *hwmon_attributes[] = {
|
|
&sensor_dev_attr_pwm1.dev_attr.attr,
|
|
&sensor_dev_attr_fan1_input.dev_attr.attr,
|
|
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
|
|
&sensor_dev_attr_name.dev_attr.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group hwmon_attribute_group = {
|
|
.attrs = hwmon_attributes
|
|
};
|
|
|
|
/*
|
|
* exit/init
|
|
*/
|
|
static void eeepc_backlight_exit(void)
|
|
{
|
|
if (eeepc_backlight_device)
|
|
backlight_device_unregister(eeepc_backlight_device);
|
|
eeepc_backlight_device = NULL;
|
|
}
|
|
|
|
static void eeepc_rfkill_exit(void)
|
|
{
|
|
if (ehotk->eeepc_wlan_rfkill)
|
|
rfkill_unregister(ehotk->eeepc_wlan_rfkill);
|
|
if (ehotk->eeepc_bluetooth_rfkill)
|
|
rfkill_unregister(ehotk->eeepc_bluetooth_rfkill);
|
|
}
|
|
|
|
static void eeepc_input_exit(void)
|
|
{
|
|
if (ehotk->inputdev)
|
|
input_unregister_device(ehotk->inputdev);
|
|
}
|
|
|
|
static void eeepc_hwmon_exit(void)
|
|
{
|
|
struct device *hwmon;
|
|
|
|
hwmon = eeepc_hwmon_device;
|
|
if (!hwmon)
|
|
return ;
|
|
sysfs_remove_group(&hwmon->kobj,
|
|
&hwmon_attribute_group);
|
|
hwmon_device_unregister(hwmon);
|
|
eeepc_hwmon_device = NULL;
|
|
}
|
|
|
|
static void __exit eeepc_laptop_exit(void)
|
|
{
|
|
eeepc_backlight_exit();
|
|
eeepc_rfkill_exit();
|
|
eeepc_input_exit();
|
|
eeepc_hwmon_exit();
|
|
acpi_bus_unregister_driver(&eeepc_hotk_driver);
|
|
sysfs_remove_group(&platform_device->dev.kobj,
|
|
&platform_attribute_group);
|
|
platform_device_unregister(platform_device);
|
|
platform_driver_unregister(&platform_driver);
|
|
}
|
|
|
|
static int eeepc_backlight_init(struct device *dev)
|
|
{
|
|
struct backlight_device *bd;
|
|
|
|
bd = backlight_device_register(EEEPC_HOTK_FILE, dev,
|
|
NULL, &eeepcbl_ops);
|
|
if (IS_ERR(bd)) {
|
|
printk(EEEPC_ERR
|
|
"Could not register eeepc backlight device\n");
|
|
eeepc_backlight_device = NULL;
|
|
return PTR_ERR(bd);
|
|
}
|
|
eeepc_backlight_device = bd;
|
|
bd->props.max_brightness = 15;
|
|
bd->props.brightness = read_brightness(NULL);
|
|
bd->props.power = FB_BLANK_UNBLANK;
|
|
backlight_update_status(bd);
|
|
return 0;
|
|
}
|
|
|
|
static int eeepc_hwmon_init(struct device *dev)
|
|
{
|
|
struct device *hwmon;
|
|
int result;
|
|
|
|
hwmon = hwmon_device_register(dev);
|
|
if (IS_ERR(hwmon)) {
|
|
printk(EEEPC_ERR
|
|
"Could not register eeepc hwmon device\n");
|
|
eeepc_hwmon_device = NULL;
|
|
return PTR_ERR(hwmon);
|
|
}
|
|
eeepc_hwmon_device = hwmon;
|
|
result = sysfs_create_group(&hwmon->kobj,
|
|
&hwmon_attribute_group);
|
|
if (result)
|
|
eeepc_hwmon_exit();
|
|
return result;
|
|
}
|
|
|
|
static int __init eeepc_laptop_init(void)
|
|
{
|
|
struct device *dev;
|
|
int result;
|
|
|
|
if (acpi_disabled)
|
|
return -ENODEV;
|
|
result = acpi_bus_register_driver(&eeepc_hotk_driver);
|
|
if (result < 0)
|
|
return result;
|
|
if (!ehotk) {
|
|
acpi_bus_unregister_driver(&eeepc_hotk_driver);
|
|
return -ENODEV;
|
|
}
|
|
dev = acpi_get_physical_device(ehotk->device->handle);
|
|
|
|
if (!acpi_video_backlight_support()) {
|
|
result = eeepc_backlight_init(dev);
|
|
if (result)
|
|
goto fail_backlight;
|
|
} else
|
|
printk(EEEPC_INFO "Backlight controlled by ACPI video "
|
|
"driver\n");
|
|
|
|
result = eeepc_hwmon_init(dev);
|
|
if (result)
|
|
goto fail_hwmon;
|
|
|
|
eeepc_enable_camera();
|
|
|
|
/* Register platform stuff */
|
|
result = platform_driver_register(&platform_driver);
|
|
if (result)
|
|
goto fail_platform_driver;
|
|
platform_device = platform_device_alloc(EEEPC_HOTK_FILE, -1);
|
|
if (!platform_device) {
|
|
result = -ENOMEM;
|
|
goto fail_platform_device1;
|
|
}
|
|
result = platform_device_add(platform_device);
|
|
if (result)
|
|
goto fail_platform_device2;
|
|
result = sysfs_create_group(&platform_device->dev.kobj,
|
|
&platform_attribute_group);
|
|
if (result)
|
|
goto fail_sysfs;
|
|
return 0;
|
|
fail_sysfs:
|
|
platform_device_del(platform_device);
|
|
fail_platform_device2:
|
|
platform_device_put(platform_device);
|
|
fail_platform_device1:
|
|
platform_driver_unregister(&platform_driver);
|
|
fail_platform_driver:
|
|
eeepc_hwmon_exit();
|
|
fail_hwmon:
|
|
eeepc_backlight_exit();
|
|
fail_backlight:
|
|
eeepc_input_exit();
|
|
eeepc_rfkill_exit();
|
|
return result;
|
|
}
|
|
|
|
module_init(eeepc_laptop_init);
|
|
module_exit(eeepc_laptop_exit);
|