Input: atkbd - release previously reserved keycodes 248 - 254

Keycodes in 248 - 254 range were reserved for special needs (scrolling)
of atkbd driver. Now that the driver has been switched to use unsigned
short keycodes instead of unsigned char we can release this range back
into pull. We keep code 255 (ATKBD_KEY_NULL) reserved since users may
have been using it to silence keys they do not care about since atkbd
silently drops scancodes mapped to this keycode.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2 files changed, 16 insertions, 12 deletions

diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 326875be192e..d358ef8623f4 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -153,16 +153,16 @@ static const unsigned short atkbd_unxlate_table[128] = {
 #define ATKBD_RET_HANGEUL       0xf2
 #define ATKBD_RET_ERR           0xff
 
-#define ATKBD_KEY_UNKNOWN         0
+#define ATKBD_KEY_UNKNOWN       0
 #define ATKBD_KEY_NULL          255
 
-#define ATKBD_SCR_1             254
-#define ATKBD_SCR_2             253
-#define ATKBD_SCR_4             252
-#define ATKBD_SCR_8             251
-#define ATKBD_SCR_CLICK         250
-#define ATKBD_SCR_LEFT          249
-#define ATKBD_SCR_RIGHT         248
+#define ATKBD_SCR_1             0xfffe
+#define ATKBD_SCR_2             0xfffd
+#define ATKBD_SCR_4             0xfffc
+#define ATKBD_SCR_8             0xfffb
+#define ATKBD_SCR_CLICK         0xfffa
+#define ATKBD_SCR_LEFT          0xfff9
+#define ATKBD_SCR_RIGHT         0xfff8
 
 #define ATKBD_SPECIAL           ATKBD_SCR_RIGHT
 
@@ -177,7 +177,7 @@ static const unsigned short atkbd_unxlate_table[128] = {
 #define ATKBD_XL_HANJA          0x20
 
 static const struct {
-        unsigned char keycode;
+        unsigned short keycode;
         unsigned char set2;
 } atkbd_scroll_keys[] = {
         { ATKBD_SCR_1,     0xc5 },
@@ -1074,9 +1074,13 @@ static void atkbd_set_device_attrs(struct atkbd *atkbd)
         input_dev->keycodesize = sizeof(unsigned short);
         input_dev->keycodemax = ARRAY_SIZE(atkbd_set2_keycode);
 
-        for (i = 0; i < ATKBD_KEYMAP_SIZE; i++)
-                if (atkbd->keycode[i] && atkbd->keycode[i] < ATKBD_SPECIAL)
+        for (i = 0; i < ATKBD_KEYMAP_SIZE; i++) {
+                if (atkbd->keycode[i] != KEY_RESERVED &&
+                    atkbd->keycode[i] != ATKBD_KEY_NULL &&
+                    atkbd->keycode[i] < ATKBD_SPECIAL) {
                         __set_bit(atkbd->keycode[i], input_dev->keybit);
+                }
+        }
 }
 
 /*
diff --git a/include/linux/input.h b/include/linux/input.h
index 828c3feb7213..b1a74fb2e436 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -377,7 +377,7 @@ struct input_absinfo {
 
 #define KEY_WIMAX               246
 
-/* Range 248 - 255 is reserved for special needs of AT keyboard driver */
+/* Code 255 is reserved for special needs of AT keyboard driver */
 
 #define BTN_MISC                0x100
 #define BTN_0                   0x100