Hi Matthew,

Here's the v3 of the patch with your changes and adapted to devices
with SPFC method, also added the Toshiba Software Configuration
Interface (SCI) registers and functions (which Illumination uses).


--- toshiba_acpi.c      2010-12-06 10:32:17.197704744 -0700
+++ toshiba_acpi.c      2010-12-05 17:23:24.745438137 -0700
@@ -5,6 +5,7 @@
  *  Copyright (C) 2002-2004 John Belmonte
  *  Copyright (C) 2008 Philip Langdale
  *  Copyright (C) 2010 Pierre Ducroquet
+ *  Copyright (C) 2010 Azael Avalos
  *
  *  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
@@ -35,7 +36,7 @@
  *
  */

-#define TOSHIBA_ACPI_VERSION   "0.19"
+#define TOSHIBA_ACPI_VERSION   "0.20"
 #define PROC_INTERFACE_VERSION 1

 #include <linux/kernel.h>
@@ -48,8 +49,12 @@
 #include <linux/platform_device.h>
 #include <linux/rfkill.h>
 #include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
 #include <linux/leds.h>
 #include <linux/slab.h>
+#include <linux/sysdev.h>
+#include <linux/workqueue.h>
+#include <linux/i8042.h>

 #include <asm/uaccess.h>

@@ -65,11 +70,9 @@
 #define MY_INFO KERN_INFO MY_LOGPREFIX

 /* Toshiba ACPI method paths */
-#define METHOD_LCD_BRIGHTNESS  "\\_SB_.PCI0.VGA_.LCD_._BCM"
-#define TOSH_INTERFACE_1       "\\_SB_.VALD"
-#define TOSH_INTERFACE_2       "\\_SB_.VALZ"
 #define METHOD_VIDEO_OUT       "\\_SB_.VALX.DSSX"
-#define GHCI_METHOD            ".GHCI"
+
+#define TOSHIBA_FN_SCAN                0x6e

 /* Toshiba HCI interface definitions
  *
@@ -83,23 +86,37 @@

 #define HCI_WORDS                      6

-/* operations */
+/* HCI operations */
 #define HCI_SET                                0xff00
 #define HCI_GET                                0xfe00
+/* SCI operations */
+#define SCI_SUPPORT_CHECK              0xf000
+#define SCI_OPEN                       0xf100
+#define SCI_CLOSE                      0xf200
+#define SCI_SET                                0xf400
+#define SCI_GET                                0xf300

-/* return codes */
+/* HCI return codes */
 #define HCI_SUCCESS                    0x0000
 #define HCI_FAILURE                    0x1000
 #define HCI_NOT_SUPPORTED              0x8000
 #define HCI_EMPTY                      0x8c00
+/* SCI return codes */
+#define SCI_NOT_SUPPORTED              HCI_NOT_SUPPORTED
+#define SCI_ALREADY_OPEN               0x8100
+#define SCI_NOT_OPENED                 0x8200
+#define SCI_NOT_PRESENT                        0x8600
+#define SCI_NOT_INSTALLED              0x8e00

-/* registers */
+/* HCI registers */
 #define HCI_FAN                                0x0004
 #define HCI_SYSTEM_EVENT               0x0016
 #define HCI_VIDEO_OUT                  0x001c
 #define HCI_HOTKEY_EVENT               0x001e
 #define HCI_LCD_BRIGHTNESS             0x002a
 #define HCI_WIRELESS                   0x0056
+/* SCI registers */
+#define SCI_ILLUMINATION               0x014e

 /* field definitions */
 #define HCI_LCD_BRIGHTNESS_BITS                3
@@ -113,44 +130,77 @@
 #define HCI_WIRELESS_BT_ATTACH         0x40
 #define HCI_WIRELESS_BT_POWER          0x80

+struct acpi_ec {
+       acpi_handle handle;
+       unsigned long gpe;
+       unsigned long command_addr;
+       unsigned long data_addr;
+       unsigned long global_lock;
+       unsigned long flags;
+       struct mutex lock;
+       wait_queue_head_t wait;
+       struct list_head list;
+       struct transaction *curr;
+       spinlock_t curr_lock;
+       struct sys_device sysdev;
+};
+
+extern struct acpi_ec *first_ec;
+
+struct toshiba_acpi_dev {
+       struct platform_device *p_dev;
+       struct acpi_device *acpi_dev;
+       struct rfkill *bt_rfk;
+       struct input_dev *hotkey_dev;
+       struct work_struct hotkey_work;
+       int illumination_installed;
+       acpi_handle handle;
+
+       int hci_type;
+       char *hci_method;
+
+       const char *bt_name;
+
+       struct mutex mutex;
+};
+
+static struct toshiba_acpi_dev toshiba_acpi = {
+       .bt_name = "Toshiba Bluetooth",
+};
+
 static const struct acpi_device_id toshiba_device_ids[] = {
        {"TOS6200", 0},
        {"TOS6208", 0},
-       {"TOS1900", 0},
+       {"TOS1900", 1},
        {"", 0},
 };
 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);

-struct key_entry {
-       char type;
-       u16 code;
-       u16 keycode;
-};
-
-enum {KE_KEY, KE_END};
-
 static struct key_entry toshiba_acpi_keymap[]  = {
-       {KE_KEY, 0x101, KEY_MUTE},
-       {KE_KEY, 0x102, KEY_ZOOMOUT},
-       {KE_KEY, 0x103, KEY_ZOOMIN},
-       {KE_KEY, 0x13b, KEY_COFFEE},
-       {KE_KEY, 0x13c, KEY_BATTERY},
-       {KE_KEY, 0x13d, KEY_SLEEP},
-       {KE_KEY, 0x13e, KEY_SUSPEND},
-       {KE_KEY, 0x13f, KEY_SWITCHVIDEOMODE},
-       {KE_KEY, 0x140, KEY_BRIGHTNESSDOWN},
-       {KE_KEY, 0x141, KEY_BRIGHTNESSUP},
-       {KE_KEY, 0x142, KEY_WLAN},
-       {KE_KEY, 0x143, KEY_PROG1},
-       {KE_KEY, 0xb05, KEY_PROG2},
-       {KE_KEY, 0xb06, KEY_WWW},
-       {KE_KEY, 0xb07, KEY_MAIL},
-       {KE_KEY, 0xb30, KEY_STOP},
-       {KE_KEY, 0xb31, KEY_PREVIOUSSONG},
-       {KE_KEY, 0xb32, KEY_NEXTSONG},
-       {KE_KEY, 0xb33, KEY_PLAYPAUSE},
-       {KE_KEY, 0xb5a, KEY_MEDIA},
-       {KE_END, 0, 0},
+       {KE_KEY, 0x100, { KEY_FN } },
+       {KE_KEY, 0x101, { KEY_MUTE } },
+       {KE_KEY, 0x102, { KEY_ZOOMOUT } },
+       {KE_KEY, 0x103, { KEY_ZOOMIN } },
+       {KE_KEY, 0x139, { KEY_ZOOMRESET } },
+       {KE_KEY, 0x13b, { KEY_COFFEE } },
+       {KE_KEY, 0x13c, { KEY_BATTERY } },
+       {KE_KEY, 0x13d, { KEY_SLEEP } },
+       {KE_KEY, 0x13e, { KEY_SUSPEND } },
+       {KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
+       {KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
+       {KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
+       {KE_KEY, 0x142, { KEY_WLAN } },
+       {KE_KEY, 0x143, { KEY_PROG1 } },
+       {KE_KEY, 0x17f, { KEY_FN } },
+       {KE_KEY, 0xb05, { KEY_PROG2 } },
+       {KE_KEY, 0xb06, { KEY_WWW } },
+       {KE_KEY, 0xb07, { KEY_MAIL } },
+       {KE_KEY, 0xb30, { KEY_STOP } },
+       {KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
+       {KE_KEY, 0xb32, { KEY_NEXTSONG } },
+       {KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
+       {KE_KEY, 0xb5a, { KEY_MEDIA } },
+       {KE_END, 0},
 };

 /* utility
@@ -164,15 +214,6 @@
 /* acpi interface wrappers
  */

-static int is_valid_acpi_path(const char *methodName)
-{
-       acpi_handle handle;
-       acpi_status status;
-
-       status = acpi_get_handle(NULL, (char *)methodName, &handle);
-       return !ACPI_FAILURE(status);
-}
-
 static int write_acpi_int(const char *methodName, int val)
 {
        struct acpi_object_list params;
@@ -185,27 +226,8 @@
        in_objs[0].integer.value = val;

        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)
-{
-       struct acpi_buffer results;
-       union acpi_object out_objs[1];
-       acpi_status status;
-
-       results.length = sizeof(out_objs);
-       results.pointer = out_objs;
-
-       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);
+       return (ACPI_SUCCESS(status));
 }
-#endif
-
-static const char *method_hci /*= 0*/ ;

 /* Perform a raw HCI call.  Here we don't care about input or output buffer
  * format.
@@ -229,9 +251,10 @@
        results.length = sizeof(out_objs);
        results.pointer = out_objs;

-       status = acpi_evaluate_object(NULL, (char *)method_hci, &params,
-                                     &results);
-       if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
+       status = acpi_evaluate_object(toshiba_acpi.acpi_dev->handle,
+                                     toshiba_acpi.hci_method,
+                                     &params, &results);
+       if ((ACPI_SUCCESS(status)) && (out_objs->package.count <= HCI_WORDS)) {
                for (i = 0; i < out_objs->package.count; ++i) {
                        out[i] = out_objs->package.elements[i].integer.value;
                }
@@ -270,7 +293,7 @@
        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;
+       *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
        return status;
 }

@@ -281,38 +304,82 @@
        acpi_status status = hci_raw(in, out);
        *out1 = out[2];
        *out2 = out[3];
-       *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
+       *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
        return status;
 }

-struct toshiba_acpi_dev {
-       struct platform_device *p_dev;
-       struct rfkill *bt_rfk;
-       struct input_dev *hotkey_dev;
-       int illumination_installed;
-       acpi_handle handle;
+static int sci_present(void)
+{
+       u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
+       u32 out[HCI_WORDS];

-       const char *bt_name;
+       /* Check system for SCI support */
+       in[0] = SCI_SUPPORT_CHECK;
+       hci_raw(in, out);
+       if (out[0] == SCI_NOT_PRESENT) {
+               printk(MY_INFO "Toshiba SCI not available\n");
+               return 0;
+       }

-       struct mutex mutex;
-};
+       return 1;
+}
+
+static int sci_open(void)
+{
+       u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
+       u32 out[HCI_WORDS];
+
+       if (!sci_present())
+               return HCI_FAILURE;
+
+       in[0] = SCI_OPEN;
+       hci_raw(in, out);
+       if (out[0] == SCI_ALREADY_OPEN) {
+               printk(MY_NOTICE "Toshiba SCI already opened\n");
+               return HCI_SUCCESS;
+       }
+
+       return out[0];
+}
+
+static int sci_close(void)
+{
+       u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
+       u32 out[HCI_WORDS];
+
+       if (!sci_present())
+               return HCI_FAILURE;
+
+       in[0] = SCI_CLOSE;
+       hci_raw(in, out);
+       if (out[0] == SCI_NOT_OPENED)
+               printk(MY_INFO "Toshiba SCI not opened\n");
+
+       return out[0];
+}

 /* Illumination support */
 static int toshiba_illumination_available(void)
 {
        u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
        u32 out[HCI_WORDS];
-       acpi_status status;
+       int ret;

-       in[0] = 0xf100;
-       status = hci_raw(in, out);
-       if (ACPI_FAILURE(status)) {
+       ret = sci_open();
+       if (ret == HCI_FAILURE) {
                printk(MY_INFO "Illumination device not available\n");
                return 0;
        }
-       in[0] = 0xf400;
-       status = hci_raw(in, out);
-       return 1;
+
+       in[0] = SCI_GET;
+       in[1] = SCI_ILLUMINATION;
+       hci_raw(in, out);
+       if (out[0] == HCI_SUCCESS)
+               return 1;
+
+       printk(MY_INFO "Illumination device not available\n");
+
+       return 0;
 }

 static void toshiba_illumination_set(struct led_classdev *cdev,
@@ -320,77 +387,41 @@
 {
        u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
        u32 out[HCI_WORDS];
-       acpi_status status;

-       /* First request : initialize communication. */
-       in[0] = 0xf100;
-       status = hci_raw(in, out);
-       if (ACPI_FAILURE(status)) {
-               printk(MY_INFO "Illumination device not available\n");
+       in[0] = SCI_SET;
+       in[1] = SCI_ILLUMINATION;
+       /* Switch the illumination on/off */
+       in[2] = (brightness) ? 1 : 0;
+       hci_raw(in, out);
+       if (out[0] == HCI_FAILURE) {
+               printk(MY_ERR "ACPI call for illumination failed.\n");
                return;
-       }
-
-       if (brightness) {
-               /* Switch the illumination on */
-               in[0] = 0xf400;
-               in[1] = 0x14e;
-               in[2] = 1;
-               status = hci_raw(in, out);
-               if (ACPI_FAILURE(status)) {
-                       printk(MY_INFO "ACPI call for illumination failed.\n");
-                       return;
-               }
-       } else {
-               /* Switch the illumination off */
-               in[0] = 0xf400;
-               in[1] = 0x14e;
-               in[2] = 0;
-               status = hci_raw(in, out);
-               if (ACPI_FAILURE(status)) {
-                       printk(MY_INFO "ACPI call for illumination failed.\n");
-                       return;
-               }
-       }
+       } else if (out[0] == SCI_NOT_SUPPORTED)
+               printk(MY_INFO "Illumination not supported\n");

-       /* Last request : close communication. */
-       in[0] = 0xf200;
-       in[1] = 0;
-       in[2] = 0;
-       hci_raw(in, out);
+       return;
 }

 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
 {
        u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
        u32 out[HCI_WORDS];
-       acpi_status status;
        enum led_brightness result;

-       /*Â First request : initialize communication. */
-       in[0] = 0xf100;
-       status = hci_raw(in, out);
-       if (ACPI_FAILURE(status)) {
-               printk(MY_INFO "Illumination device not available\n");
-               return LED_OFF;
-       }
-
+       in[0] = SCI_GET;
+       in[1] = SCI_ILLUMINATION;
        /* Check the illumination */
-       in[0] = 0xf300;
-       in[1] = 0x14e;
-       status = hci_raw(in, out);
-       if (ACPI_FAILURE(status)) {
+       hci_raw(in, out);
+       if (out[0] == HCI_FAILURE) {
                printk(MY_INFO "ACPI call for illumination failed.\n");
                return LED_OFF;
+       } else if (out[0] == SCI_NOT_SUPPORTED) {
+               printk(MY_INFO "Illumination not supported\n");
+               return LED_OFF;
        }

        result = out[2] ? LED_FULL : LED_OFF;

-       /* Last request : close communication. */
-       in[0] = 0xf200;
-       in[1] = 0;
-       in[2] = 0;
-       hci_raw(in, out);
-
        return result;
 }

@@ -401,10 +432,6 @@
        .brightness_get = toshiba_illumination_get,
 };

-static struct toshiba_acpi_dev toshiba_acpi = {
-       .bt_name = "Toshiba Bluetooth",
-};
-
 /* Bluetooth rfkill handlers */

 static u32 hci_get_bt_present(bool *present)
@@ -848,93 +875,128 @@
 }

 static struct backlight_ops toshiba_backlight_data = {
-        .get_brightness = get_lcd,
-        .update_status  = set_lcd_status,
+         .get_brightness = get_lcd,
+         .update_status  = set_lcd_status,
 };

-static struct key_entry *toshiba_acpi_get_entry_by_scancode(unsigned int code)
+static acpi_status execute_acpi_method(acpi_handle handle, char *method,
+                                      const int *param, int *result)
 {
-       struct key_entry *key;
+       struct acpi_object_list args_list;
+       struct acpi_buffer buff;
+       union acpi_object in_obj, out_obj;
+       acpi_status status;

-       for (key = toshiba_acpi_keymap; key->type != KE_END; key++)
-               if (code == key->code)
-                       return key;
+       if (param) {
+               args_list.count = 1;
+               args_list.pointer = &in_obj;
+               in_obj.type = ACPI_TYPE_INTEGER;
+               in_obj.integer.value = *param;
+       } else {
+               args_list.count = 0;
+       }

-       return NULL;
+       buff.length = sizeof(out_obj);
+       buff.pointer = &out_obj;
+
+       status = acpi_evaluate_object(handle, method, &args_list, &buff);
+       if (ACPI_FAILURE(status)) {
+               printk(MY_ERR
+                       "ACPI method (%s) execution failed\n", method);
+               return -EINVAL;
+       }
+
+       if (!result)
+               return status;
+
+       if (out_obj.type != ACPI_TYPE_INTEGER) {
+               printk(MY_ERR
+                       "ACPI method result is not a number\n");
+               return -EINVAL;
+       }
+
+       *result = out_obj.integer.value;
+       return status;
 }

-static struct key_entry *toshiba_acpi_get_entry_by_keycode(unsigned int code)
+static bool toshiba_i8042_filter(unsigned char data, unsigned char str,
+                                struct serio *port)
 {
-       struct key_entry *key;
+       if (str & 0x20)
+               return false;

-       for (key = toshiba_acpi_keymap; key->type != KE_END; key++)
-               if (code == key->keycode && key->type == KE_KEY)
-                       return key;
+       if (unlikely(data == 0xe0))
+               return false;

-       return NULL;
+       if ((data & 0x7f) == TOSHIBA_FN_SCAN) {
+               schedule_work(&toshiba_acpi.hotkey_work);
+               return true;
+       }
+
+       return false;
 }

-static int toshiba_acpi_getkeycode(struct input_dev *dev,
-                                  unsigned int scancode, unsigned int *keycode)
+static int toshiba_acpi_query_event(int *hotkey)
 {
-       struct key_entry *key = toshiba_acpi_get_entry_by_scancode(scancode);
+       acpi_status status;

-       if (key && key->type == KE_KEY) {
-               *keycode = key->keycode;
-               return 0;
+       if (!first_ec) {
+               printk(MY_ERR "No EC device available\n");
+               return -ENODEV;
        }

-       return -EINVAL;
+       status = execute_acpi_method(first_ec->handle, "NTFY", NULL, NULL);
+       if (ACPI_FAILURE(status)) {
+               printk(MY_ERR "Unable to query EC\n");
+               return -EIO;
+       }
+
+       status = execute_acpi_method(toshiba_acpi.acpi_dev->handle, "INFO",
+                                   NULL, hotkey);
+       if (ACPI_FAILURE(status)) {
+               printk(MY_ERR "Unable to request hotkey from EC\n");
+               return -EIO;
+       }
+
+       return 0;
 }

-static int toshiba_acpi_setkeycode(struct input_dev *dev,
-                                  unsigned int scancode, unsigned int keycode)
+static void toshiba_report_input_event(int value)
 {
-       struct key_entry *key;
-       unsigned int old_keycode;
+       if (value == 0x100)
+               return;

-       key = toshiba_acpi_get_entry_by_scancode(scancode);
-       if (key && key->type == KE_KEY) {
-               old_keycode = key->keycode;
-               key->keycode = keycode;
-               set_bit(keycode, dev->keybit);
-               if (!toshiba_acpi_get_entry_by_keycode(old_keycode))
-                       clear_bit(old_keycode, dev->keybit);
-               return 0;
+       /* act on key press; ignore key release */
+       if (value & 0x80)
+               return;
+
+       if (!sparse_keymap_report_event(toshiba_acpi.hotkey_dev, value, 1,
+                                       true)) {
+               printk(MY_INFO "Unknown key %x\n", value);
        }
+}

-       return -EINVAL;
+static void toshiba_acpi_work(struct work_struct *work)
+{
+       int hotkey;
+
+       if (toshiba_acpi_query_event(&hotkey))
+               printk(MY_ERR "Failed to get hotkey events\n");
+       else
+               toshiba_report_input_event(hotkey);
 }

-static void toshiba_acpi_notify(acpi_handle handle, u32 event, void *context)
+static void toshiba_acpi_notify(struct acpi_device *device, u32 event)
 {
        u32 hci_result, value;
-       struct key_entry *key;

-       if (event != 0x80)
+       if (event != 0x80 || toshiba_acpi.hci_type == 2)
                return;
+
        do {
                hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
                if (hci_result == HCI_SUCCESS) {
-                       if (value == 0x100)
-                               continue;
-                       /* act on key press; ignore key release */
-                       if (value & 0x80)
-                               continue;
-
-                       key = toshiba_acpi_get_entry_by_scancode
-                               (value);
-                       if (!key) {
-                               printk(MY_INFO "Unknown key %x\n",
-                                      value);
-                               continue;
-                       }
-                       input_report_key(toshiba_acpi.hotkey_dev,
-                                        key->keycode, 1);
-                       input_sync(toshiba_acpi.hotkey_dev);
-                       input_report_key(toshiba_acpi.hotkey_dev,
-                                        key->keycode, 0);
-                       input_sync(toshiba_acpi.hotkey_dev);
+                       toshiba_report_input_event(value);
                } else if (hci_result == HCI_NOT_SUPPORTED) {
                        /* This is a workaround for an unresolved issue on
                         * some machines where system events sporadically
@@ -945,64 +1007,94 @@
        } while (hci_result != HCI_EMPTY);
 }

-static int toshiba_acpi_setup_keyboard(char *device)
+static int __init toshiba_acpi_setup_keyboard(void)
 {
        acpi_status status;
-       acpi_handle handle;
-       int result;
-       const struct key_entry *key;
+       int error;

-       status = acpi_get_handle(NULL, device, &handle);
-       if (ACPI_FAILURE(status)) {
-               printk(MY_INFO "Unable to get notification device\n");
-               return -ENODEV;
+       toshiba_acpi.hotkey_dev = input_allocate_device();
+       if (!toshiba_acpi.hotkey_dev) {
+               printk(MY_INFO "Unable to register input device\n");
+               return -ENOMEM;
        }

-       toshiba_acpi.handle = handle;
+       toshiba_acpi.hotkey_dev->name = "Toshiba input device";
+       toshiba_acpi.hotkey_dev->phys = "acpi/toshiba";
+       toshiba_acpi.hotkey_dev->id.bustype = BUS_HOST;

-       status = acpi_evaluate_object(handle, "ENAB", NULL, NULL);
-       if (ACPI_FAILURE(status)) {
-               printk(MY_INFO "Unable to enable hotkeys\n");
-               return -ENODEV;
+       error = sparse_keymap_setup(toshiba_acpi.hotkey_dev,
+                         toshiba_acpi_keymap, NULL);
+       if (error)
+               goto err_free_dev;
+
+       if (toshiba_acpi.hci_type == 2) {
+               error = i8042_install_filter(toshiba_i8042_filter);
+               if (error) {
+                       printk(MY_ERR "Unable to install key filter\n");
+                       goto err_free_keymap;
+               }
+
+               INIT_WORK(&toshiba_acpi.hotkey_work, toshiba_acpi_work);
        }

-       status = acpi_install_notify_handler(handle, ACPI_DEVICE_NOTIFY,
-                                             toshiba_acpi_notify, NULL);
+       status = acpi_evaluate_object(toshiba_acpi.acpi_dev->handle, "ENAB",
+                                     NULL, NULL);
        if (ACPI_FAILURE(status)) {
-               printk(MY_INFO "Unable to install hotkey notification\n");
-               return -ENODEV;
+               printk(MY_INFO "Unable to enable hotkeys\n");
+               error = -ENODEV;
+               goto err_free_keymap;
        }

-       toshiba_acpi.hotkey_dev = input_allocate_device();
-       if (!toshiba_acpi.hotkey_dev) {
+       error = input_register_device(toshiba_acpi.hotkey_dev);
+       if (error) {
                printk(MY_INFO "Unable to register input device\n");
-               return -ENOMEM;
+                goto err_free_keymap;
        }

-       toshiba_acpi.hotkey_dev->name = "Toshiba input device";
-       toshiba_acpi.hotkey_dev->phys = device;
-       toshiba_acpi.hotkey_dev->id.bustype = BUS_HOST;
-       toshiba_acpi.hotkey_dev->getkeycode = toshiba_acpi_getkeycode;
-       toshiba_acpi.hotkey_dev->setkeycode = toshiba_acpi_setkeycode;
+       return 0;

-       for (key = toshiba_acpi_keymap; key->type != KE_END; key++) {
-               set_bit(EV_KEY, toshiba_acpi.hotkey_dev->evbit);
-               set_bit(key->keycode, toshiba_acpi.hotkey_dev->keybit);
+err_free_keymap:
+       if (toshiba_acpi.hci_type == 2)
+               i8042_remove_filter(toshiba_i8042_filter);
+err_free_dev:
+       input_free_device(toshiba_acpi.hotkey_dev);
+       toshiba_acpi.hotkey_dev = NULL;
+       return error;
+}
+
+static int find_hci_method(void)
+{
+       acpi_status status;
+       acpi_handle handle;
+
+       status = acpi_get_handle(toshiba_acpi.acpi_dev->handle,
+                                "GHCI", &handle);
+       if (ACPI_SUCCESS(status)) {
+               toshiba_acpi.hci_type = 1;
+               toshiba_acpi.hci_method = "GHCI";
+               return 0;
        }

-       result = input_register_device(toshiba_acpi.hotkey_dev);
-       if (result) {
-               printk(MY_INFO "Unable to register input device\n");
-               return result;
+       status = acpi_get_handle(toshiba_acpi.acpi_dev->handle,
+                                "SPFC", &handle);
+       if (ACPI_SUCCESS(status)) {
+               toshiba_acpi.hci_type = 2;
+               toshiba_acpi.hci_method = "SPFC";
+               return 0;
        }

-       return 0;
+       toshiba_acpi.hci_type = 0;
+       toshiba_acpi.hci_method = NULL;
+
+       return 1;
 }

-static void toshiba_acpi_exit(void)
+static void toshiba_acpi_cleanup(void)
 {
-       if (toshiba_acpi.hotkey_dev)
+       if (toshiba_acpi.hotkey_dev) {
                input_unregister_device(toshiba_acpi.hotkey_dev);
+               sparse_keymap_free(toshiba_acpi.hotkey_dev);
+       }

        if (toshiba_acpi.bt_rfk) {
                rfkill_unregister(toshiba_acpi.bt_rfk);
@@ -1017,69 +1109,67 @@
        if (toshiba_proc_dir)
                remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);

-       acpi_remove_notify_handler(toshiba_acpi.handle, ACPI_DEVICE_NOTIFY,
-                                  toshiba_acpi_notify);
-
-       if (toshiba_acpi.illumination_installed)
+       if (toshiba_acpi.illumination_installed) {
                led_classdev_unregister(&toshiba_led);
-
-       platform_device_unregister(toshiba_acpi.p_dev);
+               sci_close();
+       }

        return;
 }

-static int __init toshiba_acpi_init(void)
+static int toshiba_acpi_remove(struct acpi_device *device, int type)
+{
+       if (toshiba_acpi.hci_type == 2)
+               i8042_remove_filter(toshiba_i8042_filter);
+
+       toshiba_acpi_cleanup();
+
+       return 0;
+}
+
+static int __devinit toshiba_acpi_add(struct acpi_device *device)
 {
        u32 hci_result;
        bool bt_present;
        int ret = 0;
        struct backlight_properties props;

-       if (acpi_disabled)
-               return -ENODEV;
-
-       /* simple device detection: look for HCI method */
-       if (is_valid_acpi_path(TOSH_INTERFACE_1 GHCI_METHOD)) {
-               method_hci = TOSH_INTERFACE_1 GHCI_METHOD;
-               if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_1))
-                       printk(MY_INFO "Unable to activate hotkeys\n");
-       } else if (is_valid_acpi_path(TOSH_INTERFACE_2 GHCI_METHOD)) {
-               method_hci = TOSH_INTERFACE_2 GHCI_METHOD;
-               if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_2))
-                       printk(MY_INFO "Unable to activate hotkeys\n");
-       } else
-               return -ENODEV;
-
        printk(MY_INFO "Toshiba Laptop ACPI Extras version %s\n",
               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();
+       force_fan = 0;
+       key_event_valid = 0;
+
+       toshiba_acpi.acpi_dev = device;
+
+       ret = find_hci_method();
+       if (ret) {
+               printk(MY_INFO "HCI interface not found\n");
                return ret;
        }

-       force_fan = 0;
-       key_event_valid = 0;
+       ret = toshiba_acpi_setup_keyboard();
+       if (ret) {
+               printk(MY_ERR "Unable to setup hotkeys\n");
+               return ret;
+       }

        /* enable event fifo */
        hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
+       /* enable hotkey event */
+       hci_write1(HCI_HOTKEY_EVENT, 1, &hci_result);

        toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
        if (!toshiba_proc_dir) {
-               toshiba_acpi_exit();
-               return -ENODEV;
+               ret = -ENODEV;
+               goto out;
        } else {
                create_toshiba_proc_entries();
        }

+       memset(&props, 0, sizeof(struct backlight_properties));
        props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
        toshiba_backlight_device = backlight_device_register("toshiba",
                                                             
&toshiba_acpi.p_dev->dev,
@@ -1091,8 +1181,7 @@

                printk(KERN_ERR "Could not register toshiba backlight 
device\n");
                toshiba_backlight_device = NULL;
-               toshiba_acpi_exit();
-               return ret;
+               goto out;
        }

        /* Register rfkill switch for Bluetooth */
@@ -1104,16 +1193,15 @@
                                                   &toshiba_acpi);
                if (!toshiba_acpi.bt_rfk) {
                        printk(MY_ERR "unable to allocate rfkill device\n");
-                       toshiba_acpi_exit();
-                       return -ENOMEM;
+                       ret = -ENOMEM;
+                       goto out;
                }

                ret = rfkill_register(toshiba_acpi.bt_rfk);
                if (ret) {
                        printk(MY_ERR "unable to register rfkill device\n");
                        rfkill_destroy(toshiba_acpi.bt_rfk);
-                       toshiba_acpi_exit();
-                       return ret;
+                       goto out;
                }
        }

@@ -1124,7 +1212,48 @@
                        toshiba_acpi.illumination_installed = 1;
        }

-       return 0;
+out:
+       if (ret)
+               toshiba_acpi_cleanup();
+       return ret;
+}
+
+static struct acpi_driver toshiba_acpi_driver = {
+       .name = "Toshiba ACPI driver",
+       .owner = THIS_MODULE,
+       .ids = toshiba_device_ids,
+       .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
+       .ops = {
+               .add = toshiba_acpi_add,
+               .remove = toshiba_acpi_remove,
+               .notify = toshiba_acpi_notify,
+       }
+};
+
+static int __init toshiba_acpi_init(void)
+{
+       int ret;
+
+       toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi",
+                                                            -1, NULL, 0);
+       if (IS_ERR(toshiba_acpi.p_dev)) {
+               printk(MY_ERR "unable to register platform device\n");
+               return PTR_ERR(toshiba_acpi.p_dev);
+       }
+
+       ret = acpi_bus_register_driver(&toshiba_acpi_driver);
+       if (ret) {
+               printk(MY_ERR "unable to register acpi driver\n");
+               platform_device_unregister(toshiba_acpi.p_dev);
+       }
+
+       return ret;
+}
+
+static void __exit toshiba_acpi_exit(void)
+{
+       acpi_bus_unregister_driver(&toshiba_acpi_driver);
+       platform_device_unregister(toshiba_acpi.p_dev);
 }

 module_init(toshiba_acpi_init);



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