drm: DRM: fix memset size error
[linux-2.6.git] / drivers / acpi / asus_acpi.c
index 11468e4..d915fec 100644 (file)
@@ -26,7 +26,7 @@
  *  Pontus Fuchs   - Helper functions, cleanup
  *  Johann Wiesner - Small compile fixes
  *  John Belmonte  - ACPI code for Toshiba laptop was a good starting point.
- *  Éric Burghard  - LED display support for W1N
+ *  �ic Burghard  - LED display support for W1N
  *
  */
 
@@ -56,7 +56,6 @@
 #define ACPI_HOTK_NAME          "Asus Laptop ACPI Extras Driver"
 #define ACPI_HOTK_CLASS         "hotkey"
 #define ACPI_HOTK_DEVICE_NAME   "Hotkey"
-#define ACPI_HOTK_HID           "ATK0100"
 
 /*
  * Some events we use, same for all Asus
@@ -141,6 +140,7 @@ struct asus_hotk {
                W5A,            //W5A
                W3V,            //W3030V
                xxN,            //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
+               A4S,            //Z81sp
                //(Centrino)
                END_MODEL
        } model;                //Models currently supported
@@ -397,7 +397,16 @@ static struct model_data model_conf[END_MODEL] = {
         .brightness_set = "SPLV",
         .brightness_get = "GPLV",
         .display_set = "SDSP",
-        .display_get = "\\ADVG"}
+       .display_get = "\\ADVG"},
+
+       {
+               .name              = "A4S",
+               .brightness_set    = "SPLV",
+               .brightness_get    = "GPLV",
+               .mt_bt_switch      = "BLED",
+               .mt_wled           = "WLED"
+       }
+
 };
 
 /* procdir we use */
@@ -416,14 +425,20 @@ static struct acpi_table_header *asus_info;
 static struct asus_hotk *hotk;
 
 /*
- * The hotkey driver declaration
+ * The hotkey driver and autoloading declaration
  */
 static int asus_hotk_add(struct acpi_device *device);
 static int asus_hotk_remove(struct acpi_device *device, int type);
+static const struct acpi_device_id asus_device_ids[] = {
+       {"ATK0100", 0},
+       {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, asus_device_ids);
+
 static struct acpi_driver asus_hotk_driver = {
-       .name = ACPI_HOTK_NAME,
+       .name = "asus_acpi",
        .class = ACPI_HOTK_CLASS,
-       .ids = ACPI_HOTK_HID,
+       .ids = asus_device_ids,
        .ops = {
                .add = asus_hotk_add,
                .remove = asus_hotk_remove,
@@ -838,7 +853,7 @@ out:
 
 static int set_brightness_status(struct backlight_device *bd)
 {
-       return set_brightness(bd->props->brightness);
+       return set_brightness(bd->props.brightness);
 }
 
 static int
@@ -1054,7 +1069,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
                hotk->brightness = (event & ~((u32) BR_DOWN));
        }
 
-       acpi_bus_generate_event(hotk->device, event,
+       acpi_bus_generate_proc_event(hotk->device, event,
                                hotk->event_count[event % 128]++);
 
        return;
@@ -1117,6 +1132,8 @@ static int asus_model_match(char *model)
                return W3V;
        else if (strncmp(model, "W5A", 3) == 0)
                return W5A;
+       else if (strncmp(model, "A4S", 3) == 0)
+               return A4S;
        else
                return END_MODEL;
 }
@@ -1128,7 +1145,6 @@ static int asus_model_match(char *model)
 static int asus_hotk_get_info(void)
 {
        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-       struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL };
        union acpi_object *model = NULL;
        int bsts_result;
        char *string = NULL;
@@ -1142,11 +1158,9 @@ static int asus_hotk_get_info(void)
         * HID), this bit will be moved. A global variable asus_info contains
         * the DSDT header.
         */
-       status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt);
+       status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus_info);
        if (ACPI_FAILURE(status))
                printk(KERN_WARNING "  Couldn't get the DSDT table header\n");
-       else
-               asus_info = (struct acpi_table_header *)dsdt.pointer;
 
        /* We have to write 0 on init this far for all ASUS models */
        if (!write_acpi_int(hotk->handle, "INIT", 0, &buffer)) {
@@ -1168,7 +1182,7 @@ static int asus_hotk_get_info(void)
         * asus_model_match() and try something completely different.
         */
        if (buffer.pointer) {
-               model = (union acpi_object *)buffer.pointer;
+               model = buffer.pointer;
                switch (model->type) {
                case ACPI_TYPE_STRING:
                        string = model->string.pointer;
@@ -1178,6 +1192,7 @@ static int asus_hotk_get_info(void)
                        break;
                default:
                        kfree(model);
+                       model = NULL;
                        break;
                }
        }
@@ -1264,11 +1279,9 @@ static int asus_hotk_add(struct acpi_device *device)
        printk(KERN_NOTICE "Asus Laptop ACPI Extras version %s\n",
               ASUS_ACPI_VERSION);
 
-       hotk =
-           (struct asus_hotk *)kmalloc(sizeof(struct asus_hotk), GFP_KERNEL);
+       hotk = kzalloc(sizeof(struct asus_hotk), GFP_KERNEL);
        if (!hotk)
                return -ENOMEM;
-       memset(hotk, 0, sizeof(struct asus_hotk));
 
        hotk->handle = device->handle;
        strcpy(acpi_device_name(device), ACPI_HOTK_DEVICE_NAME);
@@ -1345,14 +1358,12 @@ static int asus_hotk_remove(struct acpi_device *device, int type)
        return 0;
 }
 
-static struct backlight_properties asus_backlight_data = {
-        .owner          = THIS_MODULE,
+static struct backlight_ops asus_backlight_data = {
         .get_brightness = read_brightness,
         .update_status  = set_brightness_status,
-        .max_brightness = 15,
 };
 
-static void __exit asus_acpi_exit(void)
+static void asus_acpi_exit(void)
 {
        if (asus_backlight_device)
                backlight_device_unregister(asus_backlight_device);
@@ -1360,8 +1371,6 @@ static void __exit asus_acpi_exit(void)
        acpi_bus_unregister_driver(&asus_hotk_driver);
        remove_proc_entry(PROC_ASUS, acpi_root_dir);
 
-       kfree(asus_info);
-
        return;
 }
 
@@ -1372,10 +1381,6 @@ static int __init asus_acpi_init(void)
        if (acpi_disabled)
                return -ENODEV;
 
-       if (!acpi_specific_hotkey_enabled) {
-               printk(KERN_ERR "Using generic hotkey driver\n");
-               return -ENODEV;
-       }
        asus_proc_dir = proc_mkdir(PROC_ASUS, acpi_root_dir);
        if (!asus_proc_dir) {
                printk(KERN_ERR "Asus ACPI: Unable to create /proc entry\n");
@@ -1399,7 +1404,7 @@ static int __init asus_acpi_init(void)
        if (!asus_hotk_found) {
                acpi_bus_unregister_driver(&asus_hotk_driver);
                remove_proc_entry(PROC_ASUS, acpi_root_dir);
-               return result;
+               return -ENODEV;
        }
 
        asus_backlight_device = backlight_device_register("asus",NULL,NULL,
@@ -1408,7 +1413,9 @@ static int __init asus_acpi_init(void)
                printk(KERN_ERR "Could not register asus backlight device\n");
                asus_backlight_device = NULL;
                asus_acpi_exit();
+               return -ENODEV;
        }
+        asus_backlight_device->props.max_brightness = 15;
 
        return 0;
 }