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asus-laptop: Platform detection for Pegatron Lucid 

Recognize the Pegatron Lucid tablets by their method signatures.

Signed-off-by: Andy Ross <andy.ross@windriver.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Andy Ross 2011-10-14 11:13:35 +02:00 committed by Matthew Garrett
parent ba05b23737
commit 8819de7f98
2 changed files with 29 additions and 10 deletions
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16
drivers/platform/x86/Kconfig
View File

@ -64,15 +64,17 @@ config ASUS_LAPTOP
depends on INPUT
depends on RFKILL || RFKILL = n
select INPUT_SPARSEKMAP
select INPUT_POLLDEV
---help---
This is the new Linux driver for Asus laptops. It may also support some
MEDION, JVC or VICTOR laptops. It makes all the extra buttons generate
standard ACPI events and input events. It also adds
support for video output switching, LCD backlight control, Bluetooth and
Wlan control, and most importantly, allows you to blink those fancy LEDs.
This is a driver for Asus laptops, Lenovo SL and the Pegatron
Lucid tablet. It may also support some MEDION, JVC or VICTOR
laptops. It makes all the extra buttons generate standard
ACPI events and input events. It also adds support for video
output switching, LCD backlight control, Bluetooth and Wlan
control, and most importantly, allows you to blink those
fancy LEDs.
For more information and a userspace daemon for handling the extra
buttons see <http://acpi4asus.sf.net>.
For more information see <http://acpi4asus.sf.net>.
If you have an ACPI-compatible ASUS laptop, say Y or M here.

23
drivers/platform/x86/asus-laptop.c
View File

@ -4,6 +4,7 @@
*
* Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor
* Copyright (C) 2006-2007 Corentin Chary
* Copyright (C) 2011 Wind River Systems
*
* 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
@ -48,6 +49,7 @@
#include <linux/uaccess.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/input-polldev.h>
#include <linux/rfkill.h>
#include <linux/slab.h>
#include <linux/dmi.h>
@ -173,6 +175,12 @@ MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot "
#define METHOD_KBD_LIGHT_SET "SLKB"
#define METHOD_KBD_LIGHT_GET "GLKB"
/* For Pegatron Lucid tablet */
#define DEVICE_NAME_PEGA "Lucid"
#define METHOD_PEGA_ENABLE "ENPR"
#define METHOD_PEGA_DISABLE "DAPR"
#define METHOD_PEGA_READ "RDLN"
/*
* Define a specific led structure to keep the main structure clean
*/
@ -209,6 +217,7 @@ struct asus_laptop {
int wireless_status;
bool have_rsts;
bool is_pega_lucid;
struct rfkill *gps_rfkill;
@ -323,6 +332,14 @@ static int acpi_check_handle(acpi_handle handle, const char *method,
return 0;
}
static bool asus_check_pega_lucid(struct asus_laptop *asus)
{
return !strcmp(asus->name, DEVICE_NAME_PEGA) &&
!acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) &&
!acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) &&
!acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL);
}
/* Generic LED function */
static int asus_led_set(struct asus_laptop *asus, const char *method,
int value)
@ -1203,7 +1220,6 @@ static mode_t asus_sysfs_is_visible(struct kobject *kobj,
attr == &dev_attr_ls_level.attr) {
supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) &&
!acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL);
} else if (attr == &dev_attr_gps.attr) {
supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) &&
!acpi_check_handle(handle, METHOD_GPS_OFF, NULL) &&
@ -1439,9 +1455,10 @@ static int __devinit asus_acpi_add(struct acpi_device *device)
goto fail_platform;
/*
* Register the platform device first. It is used as a parent for the
* sub-devices below.
* Need platform type detection first, then the platform
* device. It is used as a parent for the sub-devices below.
*/
asus->is_pega_lucid = asus_check_pega_lucid(asus);
result = asus_platform_init(asus);
if (result)
goto fail_platform;