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>
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 @@
#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 @@
int wireless_status;
bool have_rsts;
+ bool is_pega_lucid;
struct rfkill *gps_rfkill;
@@ -323,6 +332,14 @@
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 @@
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 @@
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;
