HID: fix pb_fnmode and move it to generic HID

The apple powerbook people are used to switch the pb_fnmode
setting at runtime through writing to sysfs, altering the
module parameter value. This was broken for them in 2.6.20-rc1
when generic HID layer was introduced, as the pb_fnmode flag
was made per-hiddevice, instead of global variable.

This patch moves the pb_fnmode module parameter from usbhid module
to hid module, but apart from that retains backward compatibility
with respect to changing the mode through sysfs.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

3 files changed, 8 insertions, 13 deletions

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 981fcf01d41b..c7a6833f6821 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -35,6 +35,11 @@
 
 #include <linux/hid.h>
 
+static int hid_pb_fnmode = 1;
+module_param_named(pb_fnmode, hid_pb_fnmode, int, 0644);
+MODULE_PARM_DESC(pb_fnmode,
+                "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
+
 #define unk     KEY_UNKNOWN
 
 static const unsigned char hid_keyboard[256] = {
@@ -154,7 +159,7 @@ static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
                 return 1;
         }
 
-        if (hid->pb_fnmode) {
+        if (hid_pb_fnmode) {
                 int do_translate;
 
                 trans = find_translation(powerbook_fn_keys, usage->code);
@@ -163,8 +168,8 @@ static int hidinput_pb_event(struct hid_device *hid, struct input_dev *input,
                                 do_translate = 1;
                         else if (trans->flags & POWERBOOK_FLAG_FKEY)
                                 do_translate =
-                                        (hid->pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
-                                        (hid->pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
+                                        (hid_pb_fnmode == 2 &&  (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON)) ||
+                                        (hid_pb_fnmode == 1 && !(hid->quirks & HID_QUIRK_POWERBOOK_FN_ON));
                         else
                                 do_translate = (hid->quirks & HID_QUIRK_POWERBOOK_FN_ON);
 
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
index b86480457a2c..c6c9e72e5fd9 100644
--- a/drivers/usb/input/hid-core.c
+++ b/drivers/usb/input/hid-core.c
@@ -56,11 +56,6 @@ static unsigned int hid_mousepoll_interval;
 module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
 MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
 
-static int usbhid_pb_fnmode = 1;
-module_param_named(pb_fnmode, usbhid_pb_fnmode, int, 0644);
-MODULE_PARM_DESC(pb_fnmode,
-                "Mode of fn key on PowerBooks (0 = disabled, 1 = fkeyslast, 2 = fkeysfirst)");
-
 /*
  * Input submission and I/O error handler.
  */
@@ -1246,10 +1241,6 @@ static struct hid_device *usb_hid_configure(struct usb_interface *intf)
         hid->hiddev_hid_event = hiddev_hid_event;
         hid->hiddev_report_event = hiddev_report_event;
 #endif
-#ifdef CONFIG_USB_HIDINPUT_POWERBOOK
-        hid->pb_fnmode = usbhid_pb_fnmode;
-#endif
-
         return hid;
 
 fail:
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 770120add15a..342b4e639acb 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -438,7 +438,6 @@ struct hid_device {							/* device report descriptor */
                                   struct hid_usage *, __s32);
         void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
 #ifdef CONFIG_USB_HIDINPUT_POWERBOOK
-        unsigned int  pb_fnmode;
         unsigned long pb_pressed_fn[NBITS(KEY_MAX)];
         unsigned long pb_pressed_numlock[NBITS(KEY_MAX)];
 #endif