V4L/DVB (10067): Remove ov772x_default_regs from ov772x driver
[safe/jmp/linux-2.6] / drivers / acpi / toshiba_acpi.c
index c84997c..40e60fc 100644 (file)
@@ -3,6 +3,7 @@
  *
  *
  *  Copyright (C) 2002-2004 John Belmonte
+ *  Copyright (C) 2008 Philip Langdale
  *
  *  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
@@ -33,7 +34,7 @@
  *
  */
 
-#define TOSHIBA_ACPI_VERSION   "0.18"
+#define TOSHIBA_ACPI_VERSION   "0.19"
 #define PROC_INTERFACE_VERSION 1
 
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/proc_fs.h>
+#include <linux/backlight.h>
+#include <linux/platform_device.h>
+#include <linux/rfkill.h>
+#include <linux/input-polldev.h>
+
 #include <asm/uaccess.h>
 
 #include <acpi/acpi_drivers.h>
@@ -88,6 +94,7 @@ MODULE_LICENSE("GPL");
 #define HCI_VIDEO_OUT                  0x001c
 #define HCI_HOTKEY_EVENT               0x001e
 #define HCI_LCD_BRIGHTNESS             0x002a
+#define HCI_WIRELESS                   0x0056
 
 /* field definitions */
 #define HCI_LCD_BRIGHTNESS_BITS                3
@@ -96,12 +103,23 @@ MODULE_LICENSE("GPL");
 #define HCI_VIDEO_OUT_LCD              0x1
 #define HCI_VIDEO_OUT_CRT              0x2
 #define HCI_VIDEO_OUT_TV               0x4
+#define HCI_WIRELESS_KILL_SWITCH       0x01
+#define HCI_WIRELESS_BT_PRESENT                0x0f
+#define HCI_WIRELESS_BT_ATTACH         0x40
+#define HCI_WIRELESS_BT_POWER          0x80
+
+static const struct acpi_device_id toshiba_device_ids[] = {
+       {"TOS6200", 0},
+       {"TOS6208", 0},
+       {"TOS1900", 0},
+       {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
 
 /* utility
  */
 
-static __inline__ void
-_set_bit(u32* word, u32 mask, int value)
+static __inline__ void _set_bit(u32 * word, u32 mask, int value)
 {
        *word = (*word & ~mask) | (mask * value);
 }
@@ -109,35 +127,32 @@ _set_bit(u32* word, u32 mask, int value)
 /* acpi interface wrappers
  */
 
-static int
-is_valid_acpi_path(const char* methodName)
+static int is_valid_acpi_path(const char *methodName)
 {
        acpi_handle handle;
        acpi_status status;
 
-       status = acpi_get_handle(NULL, (char*)methodName, &handle);
+       status = acpi_get_handle(NULL, (char *)methodName, &handle);
        return !ACPI_FAILURE(status);
 }
 
-static int
-write_acpi_int(const char* methodName, int val)
+static int write_acpi_int(const char *methodName, int val)
 {
        struct acpi_object_list params;
        union acpi_object in_objs[1];
        acpi_status status;
 
-       params.count = sizeof(in_objs)/sizeof(in_objs[0]);
+       params.count = ARRAY_SIZE(in_objs);
        params.pointer = in_objs;
        in_objs[0].type = ACPI_TYPE_INTEGER;
        in_objs[0].integer.value = val;
 
-       status = acpi_evaluate_object(NULL, (char*)methodName, &params, NULL);
+       status = acpi_evaluate_object(NULL, (char *)methodName, &params, NULL);
        return (status == AE_OK);
 }
 
 #if 0
-static int
-read_acpi_int(const char* methodName, int* pVal)
+static int read_acpi_int(const char *methodName, int *pVal)
 {
        struct acpi_buffer results;
        union acpi_object out_objs[1];
@@ -146,25 +161,24 @@ read_acpi_int(const char* methodName, int* pVal)
        results.length = sizeof(out_objs);
        results.pointer = out_objs;
 
-       status = acpi_evaluate_object(0, (char*)methodName, 0, &results);
+       status = acpi_evaluate_object(0, (char *)methodName, 0, &results);
        *pVal = out_objs[0].integer.value;
 
        return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER);
 }
 #endif
 
-static const char*             method_hci /*= 0*/;
+static const char *method_hci /*= 0*/ ;
 
 /* Perform a raw HCI call.  Here we don't care about input or output buffer
  * format.
  */
-static acpi_status
-hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
+static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
 {
        struct acpi_object_list params;
        union acpi_object in_objs[HCI_WORDS];
        struct acpi_buffer results;
-       union acpi_object out_objs[HCI_WORDS+1];
+       union acpi_object out_objs[HCI_WORDS + 1];
        acpi_status status;
        int i;
 
@@ -178,8 +192,8 @@ hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
        results.length = sizeof(out_objs);
        results.pointer = out_objs;
 
-       status = acpi_evaluate_object(NULL, (char*)method_hci, &params,
-               &results);
+       status = acpi_evaluate_object(NULL, (char *)method_hci, &params,
+                                     &results);
        if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
                for (i = 0; i < out_objs->package.count; ++i) {
                        out[i] = out_objs->package.elements[i].integer.value;
@@ -189,14 +203,13 @@ hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
        return status;
 }
 
-/* common hci tasks (get or set one value)
+/* common hci tasks (get or set one or two value)
  *
  * In addition to the ACPI status, the HCI system returns a result which
  * may be useful (such as "not supported").
  */
 
-static acpi_status
-hci_write1(u32 reg, u32 in1, u32* result)
+static acpi_status hci_write1(u32 reg, u32 in1, u32 * result)
 {
        u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
        u32 out[HCI_WORDS];
@@ -205,8 +218,7 @@ hci_write1(u32 reg, u32 in1, u32* result)
        return status;
 }
 
-static acpi_status
-hci_read1(u32 reg, u32* out1, u32* result)
+static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
 {
        u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
        u32 out[HCI_WORDS];
@@ -216,26 +228,173 @@ hci_read1(u32 reg, u32* out1, u32* result)
        return status;
 }
 
-static struct proc_dir_entry*  toshiba_proc_dir /*= 0*/;
-static int                     force_fan;
-static int                     last_key_event;
-static int                     key_event_valid;
+static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result)
+{
+       u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
+       u32 out[HCI_WORDS];
+       acpi_status status = hci_raw(in, out);
+       *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
+       return status;
+}
+
+static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result)
+{
+       u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
+       u32 out[HCI_WORDS];
+       acpi_status status = hci_raw(in, out);
+       *out1 = out[2];
+       *out2 = out[3];
+       *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
+       return status;
+}
+
+struct toshiba_acpi_dev {
+       struct platform_device *p_dev;
+       struct rfkill *rfk_dev;
+       struct input_polled_dev *poll_dev;
+
+       const char *bt_name;
+       const char *rfk_name;
+
+       bool last_rfk_state;
+
+       struct mutex mutex;
+};
+
+static struct toshiba_acpi_dev toshiba_acpi = {
+       .bt_name = "Toshiba Bluetooth",
+       .rfk_name = "Toshiba RFKill Switch",
+       .last_rfk_state = false,
+};
+
+/* Bluetooth rfkill handlers */
+
+static u32 hci_get_bt_present(bool *present)
+{
+       u32 hci_result;
+       u32 value, value2;
+
+       value = 0;
+       value2 = 0;
+       hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
+       if (hci_result == HCI_SUCCESS)
+               *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
+
+       return hci_result;
+}
+
+static u32 hci_get_bt_on(bool *on)
+{
+       u32 hci_result;
+       u32 value, value2;
+
+       value = 0;
+       value2 = 0x0001;
+       hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
+       if (hci_result == HCI_SUCCESS)
+               *on = (value & HCI_WIRELESS_BT_POWER) &&
+                     (value & HCI_WIRELESS_BT_ATTACH);
+
+       return hci_result;
+}
+
+static u32 hci_get_radio_state(bool *radio_state)
+{
+       u32 hci_result;
+       u32 value, value2;
+
+       value = 0;
+       value2 = 0x0001;
+       hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
+
+       *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
+       return hci_result;
+}
+
+static int bt_rfkill_toggle_radio(void *data, enum rfkill_state state)
+{
+       u32 result1, result2;
+       u32 value;
+       bool radio_state;
+       struct toshiba_acpi_dev *dev = data;
+
+       value = (state == RFKILL_STATE_UNBLOCKED);
+
+       if (hci_get_radio_state(&radio_state) != HCI_SUCCESS)
+               return -EFAULT;
+
+       switch (state) {
+       case RFKILL_STATE_UNBLOCKED:
+               if (!radio_state)
+                       return -EPERM;
+               break;
+       case RFKILL_STATE_SOFT_BLOCKED:
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       mutex_lock(&dev->mutex);
+       hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
+       hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
+       mutex_unlock(&dev->mutex);
+
+       if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
+               return -EFAULT;
+
+       return 0;
+}
 
-typedef struct _ProcItem
+static void bt_poll_rfkill(struct input_polled_dev *poll_dev)
 {
-       const char* name;
-       char* (*read_func)(char*);
-       unsigned long (*write_func)(const char*, unsigned long);
+       bool state_changed;
+       bool new_rfk_state;
+       bool value;
+       u32 hci_result;
+       struct toshiba_acpi_dev *dev = poll_dev->private;
+
+       hci_result = hci_get_radio_state(&value);
+       if (hci_result != HCI_SUCCESS)
+               return; /* Can't do anything useful */
+
+       new_rfk_state = value;
+
+       mutex_lock(&dev->mutex);
+       state_changed = new_rfk_state != dev->last_rfk_state;
+       dev->last_rfk_state = new_rfk_state;
+       mutex_unlock(&dev->mutex);
+
+       if (unlikely(state_changed)) {
+               rfkill_force_state(dev->rfk_dev,
+                                  new_rfk_state ?
+                                  RFKILL_STATE_SOFT_BLOCKED :
+                                  RFKILL_STATE_HARD_BLOCKED);
+               input_report_switch(poll_dev->input, SW_RFKILL_ALL,
+                                   new_rfk_state);
+               input_sync(poll_dev->input);
+       }
+}
+
+static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
+static struct backlight_device *toshiba_backlight_device;
+static int force_fan;
+static int last_key_event;
+static int key_event_valid;
+
+typedef struct _ProcItem {
+       const char *name;
+       char *(*read_func) (char *);
+       unsigned long (*write_func) (const char *, unsigned long);
 } ProcItem;
 
 /* proc file handlers
  */
 
 static int
-dispatch_read(char* page, char** start, off_t off, int count, int* eof,
-       ProcItem* item)
+dispatch_read(char *page, char **start, off_t off, int count, int *eof,
+             ProcItem * item)
 {
-       charp = page;
+       char *p = page;
        int len;
 
        if (off == 0)
@@ -243,30 +402,35 @@ dispatch_read(char* page, char** start, off_t off, int count, int* eof,
 
        /* ISSUE: I don't understand this code */
        len = (p - page);
-       if (len <= off+count) *eof = 1;
+       if (len <= off + count)
+               *eof = 1;
        *start = page + off;
        len -= off;
-       if (len>count) len = count;
-       if (len<0) len = 0;
+       if (len > count)
+               len = count;
+       if (len < 0)
+               len = 0;
        return len;
 }
 
 static int
-dispatch_write(struct filefile, const char __user * buffer,
-       unsigned long count, ProcItem* item)
+dispatch_write(struct file *file, const char __user * buffer,
+              unsigned long count, ProcItem * item)
 {
        int result;
-       chartmp_buffer;
+       char *tmp_buffer;
 
        /* Arg buffer points to userspace memory, which can't be accessed
         * directly.  Since we're making a copy, zero-terminate the
         * destination so that sscanf can be used on it safely.
         */
        tmp_buffer = kmalloc(count + 1, GFP_KERNEL);
+       if (!tmp_buffer)
+               return -ENOMEM;
+
        if (copy_from_user(tmp_buffer, buffer, count)) {
                result = -EFAULT;
-       }
-       else {
+       } else {
                tmp_buffer[count] = 0;
                result = item->write_func(tmp_buffer, count);
        }
@@ -274,18 +438,26 @@ dispatch_write(struct file* file, const char __user * buffer,
        return result;
 }
 
-static char*
-read_lcd(char* p)
+static int get_lcd(struct backlight_device *bd)
 {
        u32 hci_result;
        u32 value;
 
        hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result);
        if (hci_result == HCI_SUCCESS) {
-               value = value >> HCI_LCD_BRIGHTNESS_SHIFT;
+               return (value >> HCI_LCD_BRIGHTNESS_SHIFT);
+       } else
+               return -EFAULT;
+}
+
+static char *read_lcd(char *p)
+{
+       int value = get_lcd(NULL);
+
+       if (value >= 0) {
                p += sprintf(p, "brightness:              %d\n", value);
                p += sprintf(p, "brightness_levels:       %d\n",
-                       HCI_LCD_BRIGHTNESS_LEVELS);
+                            HCI_LCD_BRIGHTNESS_LEVELS);
        } else {
                printk(MY_ERR "Error reading LCD brightness\n");
        }
@@ -293,27 +465,40 @@ read_lcd(char* p)
        return p;
 }
 
-static unsigned long
-write_lcd(const char* buffer, unsigned long count)
+static int set_lcd(int value)
 {
-       int value;
        u32 hci_result;
 
+       value = value << HCI_LCD_BRIGHTNESS_SHIFT;
+       hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
+       if (hci_result != HCI_SUCCESS)
+               return -EFAULT;
+
+       return 0;
+}
+
+static int set_lcd_status(struct backlight_device *bd)
+{
+       return set_lcd(bd->props.brightness);
+}
+
+static unsigned long write_lcd(const char *buffer, unsigned long count)
+{
+       int value;
+       int ret;
+
        if (sscanf(buffer, " brightness : %i", &value) == 1 &&
-                       value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
-               value = value << HCI_LCD_BRIGHTNESS_SHIFT;
-               hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
-               if (hci_result != HCI_SUCCESS)
-                       return -EFAULT;
+           value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
+               ret = set_lcd(value);
+               if (ret == 0)
+                       ret = count;
        } else {
-               return -EINVAL;
+               ret = -EINVAL;
        }
-
-       return count;
+       return ret;
 }
 
-static char*
-read_video(char* p)
+static char *read_video(char *p)
 {
        u32 hci_result;
        u32 value;
@@ -322,7 +507,7 @@ read_video(char* p)
        if (hci_result == HCI_SUCCESS) {
                int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
                int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
-               int is_tv  = (value & HCI_VIDEO_OUT_TV ) ? 1 : 0;
+               int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
                p += sprintf(p, "lcd_out:                 %d\n", is_lcd);
                p += sprintf(p, "crt_out:                 %d\n", is_crt);
                p += sprintf(p, "tv_out:                  %d\n", is_tv);
@@ -333,8 +518,7 @@ read_video(char* p)
        return p;
 }
 
-static unsigned long
-write_video(const char* buffer, unsigned long count)
+static unsigned long write_video(const char *buffer, unsigned long count)
 {
        int value;
        int remain = count;
@@ -342,7 +526,7 @@ write_video(const char* buffer, unsigned long count)
        int crt_out = -1;
        int tv_out = -1;
        u32 hci_result;
-       int video_out;
+       u32 video_out;
 
        /* scan expression.  Multiple expressions may be delimited with ;
         *
@@ -360,12 +544,12 @@ write_video(const char* buffer, unsigned long count)
                        ++buffer;
                        --remain;
                }
-               while (remain && *(buffer-1) != ';');
+               while (remain && *(buffer - 1) != ';');
        }
 
        hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
        if (hci_result == HCI_SUCCESS) {
-               int new_video_out = video_out;
+               unsigned int new_video_out = video_out;
                if (lcd_out != -1)
                        _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
                if (crt_out != -1)
@@ -383,8 +567,7 @@ write_video(const char* buffer, unsigned long count)
        return count;
 }
 
-static char*
-read_fan(char* p)
+static char *read_fan(char *p)
 {
        u32 hci_result;
        u32 value;
@@ -400,14 +583,13 @@ read_fan(char* p)
        return p;
 }
 
-static unsigned long
-write_fan(const char* buffer, unsigned long count)
+static unsigned long write_fan(const char *buffer, unsigned long count)
 {
        int value;
        u32 hci_result;
 
        if (sscanf(buffer, " force_on : %i", &value) == 1 &&
-                       value >= 0 && value <= 1) {
+           value >= 0 && value <= 1) {
                hci_write1(HCI_FAN, value, &hci_result);
                if (hci_result != HCI_SUCCESS)
                        return -EFAULT;
@@ -420,8 +602,7 @@ write_fan(const char* buffer, unsigned long count)
        return count;
 }
 
-static char*
-read_keys(char* p)
+static char *read_keys(char *p)
 {
        u32 hci_result;
        u32 value;
@@ -448,17 +629,15 @@ read_keys(char* p)
        p += sprintf(p, "hotkey_ready:            %d\n", key_event_valid);
        p += sprintf(p, "hotkey:                  0x%04x\n", last_key_event);
 
-end:
+      end:
        return p;
 }
 
-static unsigned long
-write_keys(const char* buffer, unsigned long count)
+static unsigned long write_keys(const char *buffer, unsigned long count)
 {
        int value;
 
-       if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 &&
-                       value == 0) {
+       if (sscanf(buffer, " hotkey_ready : %i", &value) == 1 && value == 0) {
                key_event_valid = 0;
        } else {
                return -EINVAL;
@@ -467,12 +646,11 @@ write_keys(const char* buffer, unsigned long count)
        return count;
 }
 
-static char*
-read_version(char* p)
+static char *read_version(char *p)
 {
        p += sprintf(p, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
        p += sprintf(p, "proc_interface:          %d\n",
-               PROC_INTERFACE_VERSION);
+                    PROC_INTERFACE_VERSION);
        return p;
 }
 
@@ -481,54 +659,84 @@ read_version(char* p)
 
 #define PROC_TOSHIBA           "toshiba"
 
-static ProcItem proc_items[] =
-{
-       { "lcd"         , read_lcd      , write_lcd     },
-       { "video"       , read_video    , write_video   },
-       { "fan"         , read_fan      , write_fan     },
-       { "keys"        , read_keys     , write_keys    },
-       { "version"     , read_version  , NULL          },
-       { NULL }
+static ProcItem proc_items[] = {
+       {"lcd", read_lcd, write_lcd},
+       {"video", read_video, write_video},
+       {"fan", read_fan, write_fan},
+       {"keys", read_keys, write_keys},
+       {"version", read_version, NULL},
+       {NULL}
 };
 
-static acpi_status __init
-add_device(void)
+static acpi_status __init add_device(void)
 {
-       struct proc_dir_entryproc;
-       ProcItemitem;
+       struct proc_dir_entry *proc;
+       ProcItem *item;
 
-       for (item = proc_items; item->name; ++item)
-       {
+       for (item = proc_items; item->name; ++item) {
                proc = create_proc_read_entry(item->name,
-                       S_IFREG | S_IRUGO | S_IWUSR,
-                       toshiba_proc_dir, (read_proc_t*)dispatch_read, item);
+                                             S_IFREG | S_IRUGO | S_IWUSR,
+                                             toshiba_proc_dir,
+                                             (read_proc_t *) dispatch_read,
+                                             item);
                if (proc)
                        proc->owner = THIS_MODULE;
                if (proc && item->write_func)
-                       proc->write_proc = (write_proc_t*)dispatch_write;
+                       proc->write_proc = (write_proc_t *) dispatch_write;
        }
 
        return AE_OK;
 }
 
-static acpi_status __exit
-remove_device(void)
+static acpi_status remove_device(void)
 {
-       ProcItemitem;
+       ProcItem *item;
 
        for (item = proc_items; item->name; ++item)
                remove_proc_entry(item->name, toshiba_proc_dir);
        return AE_OK;
 }
 
-static int __init
-toshiba_acpi_init(void)
+static struct backlight_ops toshiba_backlight_data = {
+        .get_brightness = get_lcd,
+        .update_status  = set_lcd_status,
+};
+
+static void toshiba_acpi_exit(void)
+{
+       if (toshiba_acpi.poll_dev) {
+               input_unregister_polled_device(toshiba_acpi.poll_dev);
+               input_free_polled_device(toshiba_acpi.poll_dev);
+       }
+
+       if (toshiba_acpi.rfk_dev)
+               rfkill_unregister(toshiba_acpi.rfk_dev);
+
+       if (toshiba_backlight_device)
+               backlight_device_unregister(toshiba_backlight_device);
+
+       remove_device();
+
+       if (toshiba_proc_dir)
+               remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
+
+       platform_device_unregister(toshiba_acpi.p_dev);
+
+       return;
+}
+
+static int __init toshiba_acpi_init(void)
 {
        acpi_status status = AE_OK;
        u32 hci_result;
+       bool bt_present;
+       bool bt_on;
+       bool radio_on;
+       int ret = 0;
 
        if (acpi_disabled)
                return -ENODEV;
+
        /* simple device detection: look for HCI method */
        if (is_valid_acpi_path(METHOD_HCI_1))
                method_hci = METHOD_HCI_1;
@@ -538,9 +746,21 @@ toshiba_acpi_init(void)
                return -ENODEV;
 
        printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n",
-               TOSHIBA_ACPI_VERSION);
+              TOSHIBA_ACPI_VERSION);
        printk(MY_INFO "    HCI method: %s\n", method_hci);
 
+       mutex_init(&toshiba_acpi.mutex);
+
+       toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi",
+                                                             -1, NULL, 0);
+       if (IS_ERR(toshiba_acpi.p_dev)) {
+               ret = PTR_ERR(toshiba_acpi.p_dev);
+               printk(MY_ERR "unable to register platform device\n");
+               toshiba_acpi.p_dev = NULL;
+               toshiba_acpi_exit();
+               return ret;
+       }
+
        force_fan = 0;
        key_event_valid = 0;
 
@@ -549,26 +769,94 @@ toshiba_acpi_init(void)
 
        toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
        if (!toshiba_proc_dir) {
-               status = AE_ERROR;
+               toshiba_acpi_exit();
+               return -ENODEV;
        } else {
                toshiba_proc_dir->owner = THIS_MODULE;
                status = add_device();
-               if (ACPI_FAILURE(status))
-                       remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
+               if (ACPI_FAILURE(status)) {
+                       toshiba_acpi_exit();
+                       return -ENODEV;
+               }
        }
 
-       return (ACPI_SUCCESS(status)) ? 0 : -ENODEV;
-}
+       toshiba_backlight_device = backlight_device_register("toshiba",
+                                               &toshiba_acpi.p_dev->dev,
+                                               NULL,
+                                               &toshiba_backlight_data);
+        if (IS_ERR(toshiba_backlight_device)) {
+               ret = PTR_ERR(toshiba_backlight_device);
+
+               printk(KERN_ERR "Could not register toshiba backlight device\n");
+               toshiba_backlight_device = NULL;
+               toshiba_acpi_exit();
+               return ret;
+       }
+        toshiba_backlight_device->props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
+
+       /* Register rfkill switch for Bluetooth */
+       if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {
+               toshiba_acpi.rfk_dev = rfkill_allocate(&toshiba_acpi.p_dev->dev,
+                                                       RFKILL_TYPE_BLUETOOTH);
+               if (!toshiba_acpi.rfk_dev) {
+                       printk(MY_ERR "unable to allocate rfkill device\n");
+                       toshiba_acpi_exit();
+                       return -ENOMEM;
+               }
 
-static void __exit
-toshiba_acpi_exit(void)
-{
-       remove_device();
+               toshiba_acpi.rfk_dev->name = toshiba_acpi.bt_name;
+               toshiba_acpi.rfk_dev->toggle_radio = bt_rfkill_toggle_radio;
+               toshiba_acpi.rfk_dev->user_claim_unsupported = 1;
+               toshiba_acpi.rfk_dev->data = &toshiba_acpi;
 
-       if (toshiba_proc_dir)
-               remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
+               if (hci_get_bt_on(&bt_on) == HCI_SUCCESS && bt_on) {
+                       toshiba_acpi.rfk_dev->state = RFKILL_STATE_UNBLOCKED;
+               } else if (hci_get_radio_state(&radio_on) == HCI_SUCCESS &&
+                          radio_on) {
+                       toshiba_acpi.rfk_dev->state = RFKILL_STATE_SOFT_BLOCKED;
+               } else {
+                       toshiba_acpi.rfk_dev->state = RFKILL_STATE_HARD_BLOCKED;
+               }
 
-       return;
+               ret = rfkill_register(toshiba_acpi.rfk_dev);
+               if (ret) {
+                       printk(MY_ERR "unable to register rfkill device\n");
+                       toshiba_acpi_exit();
+                       return -ENOMEM;
+               }
+
+               /* Register input device for kill switch */
+               toshiba_acpi.poll_dev = input_allocate_polled_device();
+               if (!toshiba_acpi.poll_dev) {
+                       printk(MY_ERR
+                              "unable to allocate kill-switch input device\n");
+                       toshiba_acpi_exit();
+                       return -ENOMEM;
+               }
+               toshiba_acpi.poll_dev->private = &toshiba_acpi;
+               toshiba_acpi.poll_dev->poll = bt_poll_rfkill;
+               toshiba_acpi.poll_dev->poll_interval = 1000; /* msecs */
+
+               toshiba_acpi.poll_dev->input->name = toshiba_acpi.rfk_name;
+               toshiba_acpi.poll_dev->input->id.bustype = BUS_HOST;
+               /* Toshiba USB ID */
+               toshiba_acpi.poll_dev->input->id.vendor = 0x0930;
+               set_bit(EV_SW, toshiba_acpi.poll_dev->input->evbit);
+               set_bit(SW_RFKILL_ALL, toshiba_acpi.poll_dev->input->swbit);
+               input_report_switch(toshiba_acpi.poll_dev->input,
+                                   SW_RFKILL_ALL, TRUE);
+               input_sync(toshiba_acpi.poll_dev->input);
+
+               ret = input_register_polled_device(toshiba_acpi.poll_dev);
+               if (ret) {
+                       printk(MY_ERR
+                              "unable to register kill-switch input device\n");
+                       toshiba_acpi_exit();
+                       return ret;
+               }
+       }
+
+       return 0;
 }
 
 module_init(toshiba_acpi_init);