Merge branch 'linus' into x86/urgent

1 files changed, 135 insertions, 10 deletions

diff --git a/drivers/misc/acer-wmi.c b/drivers/misc/acer-wmi.c
index dd13a3749927..e7a3fe508dff 100644
--- a/drivers/misc/acer-wmi.c
+++ b/drivers/misc/acer-wmi.c
@@ -22,18 +22,18 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#define ACER_WMI_VERSION        "0.1"
-
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/dmi.h>
+#include <linux/fb.h>
 #include <linux/backlight.h>
 #include <linux/leds.h>
 #include <linux/platform_device.h>
 #include <linux/acpi.h>
 #include <linux/i8042.h>
+#include <linux/debugfs.h>
 
 #include <acpi/acpi_drivers.h>
 
@@ -87,6 +87,7 @@ struct acer_quirks {
  * Acer ACPI method GUIDs
  */
 #define AMW0_GUID1              "67C3371D-95A3-4C37-BB61-DD47B491DAAB"
+#define AMW0_GUID2              "431F16ED-0C2B-444C-B267-27DEB140CF9C"
 #define WMID_GUID1              "6AF4F258-B401-42fd-BE91-3D4AC2D7C0D3"
 #define WMID_GUID2              "95764E09-FB56-4e83-B31A-37761F60994A"
 
@@ -150,6 +151,12 @@ struct acer_data {
         int brightness;
 };
 
+struct acer_debug {
+        struct dentry *root;
+        struct dentry *devices;
+        u32 wmid_devices;
+};
+
 /* Each low-level interface must define at least some of the following */
 struct wmi_interface {
         /* The WMI device type */
@@ -160,6 +167,9 @@ struct wmi_interface {
 
         /* Private data for the current interface */
         struct acer_data data;
+
+        /* debugfs entries associated with this interface */
+        struct acer_debug debug;
 };
 
 /* The static interface pointer, points to the currently detected interface */
@@ -174,7 +184,7 @@ static struct wmi_interface *interface;
 struct quirk_entry {
         u8 wireless;
         u8 mailled;
-        u8 brightness;
+        s8 brightness;
         u8 bluetooth;
 };
 
@@ -198,6 +208,10 @@ static int dmi_matched(const struct dmi_system_id *dmi)
 static struct quirk_entry quirk_unknown = {
 };
 
+static struct quirk_entry quirk_acer_aspire_1520 = {
+        .brightness = -1,
+};
+
 static struct quirk_entry quirk_acer_travelmate_2490 = {
         .mailled = 1,
 };
@@ -207,9 +221,31 @@ static struct quirk_entry quirk_medion_md_98300 = {
         .wireless = 1,
 };
 
+static struct quirk_entry quirk_fujitsu_amilo_li_1718 = {
+        .wireless = 2,
+};
+
 static struct dmi_system_id acer_quirks[] = {
         {
                 .callback = dmi_matched,
+                .ident = "Acer Aspire 1360",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1360"),
+                },
+                .driver_data = &quirk_acer_aspire_1520,
+        },
+        {
+                .callback = dmi_matched,
+                .ident = "Acer Aspire 1520",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1520"),
+                },
+                .driver_data = &quirk_acer_aspire_1520,
+        },
+        {
+                .callback = dmi_matched,
                 .ident = "Acer Aspire 3100",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -300,6 +336,15 @@ static struct dmi_system_id acer_quirks[] = {
         },
         {
                 .callback = dmi_matched,
+                .ident = "Fujitsu Siemens Amilo Li 1718",
+                .matches = {
+                        DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+                        DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Li 1718"),
+                },
+                .driver_data = &quirk_fujitsu_amilo_li_1718,
+        },
+        {
+                .callback = dmi_matched,
                 .ident = "Medion MD 98300",
                 .matches = {
                         DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
@@ -393,6 +438,12 @@ struct wmi_interface *iface)
                                 return AE_ERROR;
                         *value = result & 0x1;
                         return AE_OK;
+                case 2:
+                        err = ec_read(0x71, &result);
+                        if (err)
+                                return AE_ERROR;
+                        *value = result & 0x1;
+                        return AE_OK;
                 default:
                         err = ec_read(0xA, &result);
                         if (err)
@@ -506,6 +557,15 @@ static acpi_status AMW0_set_capabilities(void)
         struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
         union acpi_object *obj;
 
+        /*
+         * On laptops with this strange GUID (non Acer), normal probing doesn't
+         * work.
+         */
+        if (wmi_has_guid(AMW0_GUID2)) {
+                interface->capability |= ACER_CAP_WIRELESS;
+                return AE_OK;
+        }
+
         args.eax = ACER_AMW0_WRITE;
         args.ecx = args.edx = 0;
 
@@ -552,7 +612,8 @@ static acpi_status AMW0_set_capabilities(void)
          * appear to use the same EC register for brightness, even if they
          * differ for wireless, etc
          */
-        interface->capability |= ACER_CAP_BRIGHTNESS;
+        if (quirks->brightness >= 0)
+                interface->capability |= ACER_CAP_BRIGHTNESS;
 
         return AE_OK;
 }
@@ -807,7 +868,15 @@ static int read_brightness(struct backlight_device *bd)
 
 static int update_bl_status(struct backlight_device *bd)
 {
-        set_u32(bd->props.brightness, ACER_CAP_BRIGHTNESS);
+        int intensity = bd->props.brightness;
+
+        if (bd->props.power != FB_BLANK_UNBLANK)
+                intensity = 0;
+        if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+                intensity = 0;
+
+        set_u32(intensity, ACER_CAP_BRIGHTNESS);
+
         return 0;
 }
 
@@ -829,8 +898,9 @@ static int __devinit acer_backlight_init(struct device *dev)
 
         acer_backlight_device = bd;
 
+        bd->props.power = FB_BLANK_UNBLANK;
+        bd->props.brightness = max_brightness;
         bd->props.max_brightness = max_brightness;
-        bd->props.brightness = read_brightness(NULL);
         backlight_update_status(bd);
         return 0;
 }
@@ -894,6 +964,28 @@ static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR,
         show_interface, NULL);
 
 /*
+ * debugfs functions
+ */
+static u32 get_wmid_devices(void)
+{
+        struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL};
+        union acpi_object *obj;
+        acpi_status status;
+
+        status = wmi_query_block(WMID_GUID2, 1, &out);
+        if (ACPI_FAILURE(status))
+                return 0;
+
+        obj = (union acpi_object *) out.pointer;
+        if (obj && obj->type == ACPI_TYPE_BUFFER &&
+                obj->buffer.length == sizeof(u32)) {
+                return *((u32 *) obj->buffer.pointer);
+        } else {
+                return 0;
+        }
+}
+
+/*
  * Platform device
  */
 static int __devinit acer_platform_probe(struct platform_device *device)
@@ -1052,12 +1144,40 @@ error_sysfs:
         return retval;
 }
 
+static void remove_debugfs(void)
+{
+        debugfs_remove(interface->debug.devices);
+        debugfs_remove(interface->debug.root);
+}
+
+static int create_debugfs(void)
+{
+        interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
+        if (!interface->debug.root) {
+                printk(ACER_ERR "Failed to create debugfs directory");
+                return -ENOMEM;
+        }
+
+        interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
+                                        interface->debug.root,
+                                        &interface->debug.wmid_devices);
+        if (!interface->debug.devices)
+                goto error_debugfs;
+
+        return 0;
+
+error_debugfs:
+                remove_debugfs();
+        return -ENOMEM;
+}
+
 static int __init acer_wmi_init(void)
 {
         int err;
 
-        printk(ACER_INFO "Acer Laptop ACPI-WMI Extras version %s\n",
-                        ACER_WMI_VERSION);
+        printk(ACER_INFO "Acer Laptop ACPI-WMI Extras\n");
+
+        find_quirks();
 
         /*
          * Detect which ACPI-WMI interface we're using.
@@ -1092,8 +1212,6 @@ static int __init acer_wmi_init(void)
         if (wmi_has_guid(AMW0_GUID1))
                 AMW0_find_mailled();
 
-        find_quirks();
-
         if (!interface) {
                 printk(ACER_ERR "No or unsupported WMI interface, unable to "
                                 "load\n");
@@ -1111,6 +1229,13 @@ static int __init acer_wmi_init(void)
         if (err)
                 return err;
 
+        if (wmi_has_guid(WMID_GUID2)) {
+                interface->debug.wmid_devices = get_wmid_devices();
+                err = create_debugfs();
+                if (err)
+                        return err;
+        }
+
         /* Override any initial settings with values from the commandline */
         acer_commandline_init();