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Subject[PATCH 1/8] asus-laptop: Platform detection for Pegatron Lucid
Date
From: Andy Ross <andy.ross@windriver.com>

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>
---
drivers/platform/x86/Kconfig | 18 ++++++++++--------
drivers/platform/x86/asus-laptop.c | 23 ++++++++++++++++++++---
2 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 1e88d47..4e5623e 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -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.

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index fa6d7ec..c08f4c2 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -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;
--
1.7.3.4


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