12 files changed, 158 insertions, 36 deletions

diff --git a/drivers/acorn/char/defkeymap-l7200.c b/drivers/acorn/char/defkeymap-l7200.c
index 9e18ce742e38..28a5fbc6aa1a 100644
--- a/drivers/acorn/char/defkeymap-l7200.c
+++ b/drivers/acorn/char/defkeymap-l7200.c
@@ -346,7 +346,7 @@ char *func_table[MAX_NR_FUNC] = {
         0,
 };
 
-struct kbdiacr accent_table[MAX_DIACR] = {
+struct kbdiacruc accent_table[MAX_DIACR] = {
         {'`', 'A', '\300'},     {'`', 'a', '\340'},
         {'\'', 'A', '\301'},    {'\'', 'a', '\341'},
         {'^', 'A', '\302'},     {'^', 'a', '\342'},
diff --git a/drivers/char/consolemap.c b/drivers/char/consolemap.c
index 163f3fce3f84..6b104e45a322 100644
--- a/drivers/char/consolemap.c
+++ b/drivers/char/consolemap.c
@@ -669,19 +669,29 @@ void con_protect_unimap(struct vc_data *vc, int rdonly)
                 p->readonly = rdonly;
 }
 
+/*
+ * Always use USER_MAP. These functions are used by the keyboard,
+ * which shouldn't be affected by G0/G1 switching, etc.
+ * If the user map still contains default values, i.e. the
+ * direct-to-font mapping, then assume user is using Latin1.
+ */
 /* may be called during an interrupt */
 u32 conv_8bit_to_uni(unsigned char c)
 {
-        /*
-         * Always use USER_MAP. This function is used by the keyboard,
-         * which shouldn't be affected by G0/G1 switching, etc.
-         * If the user map still contains default values, i.e. the
-         * direct-to-font mapping, then assume user is using Latin1.
-         */
         unsigned short uni = translations[USER_MAP][c];
         return uni == (0xf000 | c) ? c : uni;
 }
 
+int conv_uni_to_8bit(u32 uni)
+{
+        int c;
+        for (c = 0; c < 0x100; c++)
+                if (translations[USER_MAP][c] == uni ||
+                   (translations[USER_MAP][c] == (c | 0xf000) && uni == c))
+                        return c;
+        return -1;
+}
+
 int
 conv_uni_to_pc(struct vc_data *conp, long ucs) 
 {
diff --git a/drivers/char/defkeymap.c_shipped b/drivers/char/defkeymap.c_shipped
index 453a2f1ffa15..0aa419a61767 100644
--- a/drivers/char/defkeymap.c_shipped
+++ b/drivers/char/defkeymap.c_shipped
@@ -222,7 +222,7 @@ char *func_table[MAX_NR_FUNC] = {
         NULL,
 };
 
-struct kbdiacr accent_table[MAX_DIACR] = {
+struct kbdiacruc accent_table[MAX_DIACR] = {
         {'`', 'A', '\300'},     {'`', 'a', '\340'},
         {'\'', 'A', '\301'},    {'\'', 'a', '\341'},
         {'^', 'A', '\302'},     {'^', 'a', '\342'},
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index d95f316afb5a..5ae2a3250c50 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -38,6 +38,7 @@
 #include <linux/kbd_kern.h>
 #include <linux/kbd_diacr.h>
 #include <linux/vt_kern.h>
+#include <linux/consolemap.h>
 #include <linux/sysrq.h>
 #include <linux/input.h>
 #include <linux/reboot.h>
@@ -403,9 +404,12 @@ static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch)
                 return d;
 
         if (kbd->kbdmode == VC_UNICODE)
-                to_utf8(vc, conv_8bit_to_uni(d));
-        else if (d < 0x100)
-                put_queue(vc, d);
+                to_utf8(vc, d);
+        else {
+                int c = conv_uni_to_8bit(d);
+                if (c != -1)
+                        put_queue(vc, c);
+        }
 
         return ch;
 }
@@ -417,9 +421,12 @@ static void fn_enter(struct vc_data *vc)
 {
         if (diacr) {
                 if (kbd->kbdmode == VC_UNICODE)
-                        to_utf8(vc, conv_8bit_to_uni(diacr));
-                else if (diacr < 0x100)
-                        put_queue(vc, diacr);
+                        to_utf8(vc, diacr);
+                else {
+                        int c = conv_uni_to_8bit(diacr);
+                        if (c != -1)
+                                put_queue(vc, c);
+                }
                 diacr = 0;
         }
         put_queue(vc, 13);
@@ -627,9 +634,12 @@ static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag)
                 return;
         }
         if (kbd->kbdmode == VC_UNICODE)
-                to_utf8(vc, conv_8bit_to_uni(value));
-        else if (value < 0x100)
-                put_queue(vc, value);
+                to_utf8(vc, value);
+        else {
+                int c = conv_uni_to_8bit(value);
+                if (c != -1)
+                        put_queue(vc, c);
+        }
 }
 
 /*
@@ -646,7 +656,12 @@ static void k_deadunicode(struct vc_data *vc, unsigned int value, char up_flag)
 
 static void k_self(struct vc_data *vc, unsigned char value, char up_flag)
 {
-        k_unicode(vc, value, up_flag);
+        unsigned int uni;
+        if (kbd->kbdmode == VC_UNICODE)
+                uni = value;
+        else
+                uni = conv_8bit_to_uni(value);
+        k_unicode(vc, uni, up_flag);
 }
 
 static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag)
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index f69a8258095c..6c7384afff13 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -23,6 +23,7 @@
 #include <linux/major.h>
 #include <linux/fs.h>
 #include <linux/console.h>
+#include <linux/consolemap.h>
 #include <linux/signal.h>
 #include <linux/timex.h>
 
@@ -582,10 +583,27 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
         case KDGKBDIACR:
         {
                 struct kbdiacrs __user *a = up;
+                struct kbdiacr diacr;
+                int i;
 
                 if (put_user(accent_table_size, &a->kb_cnt))
                         return -EFAULT;
-                if (copy_to_user(a->kbdiacr, accent_table, accent_table_size*sizeof(struct kbdiacr)))
+                for (i = 0; i < accent_table_size; i++) {
+                        diacr.diacr = conv_uni_to_8bit(accent_table[i].diacr);
+                        diacr.base = conv_uni_to_8bit(accent_table[i].base);
+                        diacr.result = conv_uni_to_8bit(accent_table[i].result);
+                        if (copy_to_user(a->kbdiacr + i, &diacr, sizeof(struct kbdiacr)))
+                                return -EFAULT;
+                }
+                return 0;
+        }
+        case KDGKBDIACRUC:
+        {
+                struct kbdiacrsuc __user *a = up;
+
+                if (put_user(accent_table_size, &a->kb_cnt))
+                        return -EFAULT;
+                if (copy_to_user(a->kbdiacruc, accent_table, accent_table_size*sizeof(struct kbdiacruc)))
                         return -EFAULT;
                 return 0;
         }
@@ -593,6 +611,30 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
         case KDSKBDIACR:
         {
                 struct kbdiacrs __user *a = up;
+                struct kbdiacr diacr;
+                unsigned int ct;
+                int i;
+
+                if (!perm)
+                        return -EPERM;
+                if (get_user(ct,&a->kb_cnt))
+                        return -EFAULT;
+                if (ct >= MAX_DIACR)
+                        return -EINVAL;
+                accent_table_size = ct;
+                for (i = 0; i < ct; i++) {
+                        if (copy_from_user(&diacr, a->kbdiacr + i, sizeof(struct kbdiacr)))
+                                return -EFAULT;
+                        accent_table[i].diacr = conv_8bit_to_uni(diacr.diacr);
+                        accent_table[i].base = conv_8bit_to_uni(diacr.base);
+                        accent_table[i].result = conv_8bit_to_uni(diacr.result);
+                }
+                return 0;
+        }
+
+        case KDSKBDIACRUC:
+        {
+                struct kbdiacrsuc __user *a = up;
                 unsigned int ct;
 
                 if (!perm)
@@ -602,7 +644,7 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
                 if (ct >= MAX_DIACR)
                         return -EINVAL;
                 accent_table_size = ct;
-                if (copy_from_user(accent_table, a->kbdiacr, ct*sizeof(struct kbdiacr)))
+                if (copy_from_user(accent_table, a->kbdiacruc, ct*sizeof(struct kbdiacruc)))
                         return -EFAULT;
                 return 0;
         }
diff --git a/drivers/s390/char/defkeymap.c b/drivers/s390/char/defkeymap.c
index 564baca01b7c..389346cda6c8 100644
--- a/drivers/s390/char/defkeymap.c
+++ b/drivers/s390/char/defkeymap.c
@@ -150,7 +150,7 @@ char *func_table[MAX_NR_FUNC] = {
         NULL,
 };
 
-struct kbdiacr accent_table[MAX_DIACR] = {
+struct kbdiacruc accent_table[MAX_DIACR] = {
         {'^', 'c', '\003'},     {'^', 'd', '\004'},
         {'^', 'z', '\032'},     {'^', '\012', '\000'},
 };
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index f62f9a4e8950..cee4d4e42429 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -11,6 +11,7 @@
 #include <linux/sched.h>
 #include <linux/sysrq.h>
 
+#include <linux/consolemap.h>
 #include <linux/kbd_kern.h>
 #include <linux/kbd_diacr.h>
 #include <asm/uaccess.h>
@@ -82,11 +83,11 @@ kbd_alloc(void) {
         if (!kbd->fn_handler)
                 goto out_func;
         kbd->accent_table =
-                kmalloc(sizeof(struct kbdiacr)*MAX_DIACR, GFP_KERNEL);
+                kmalloc(sizeof(struct kbdiacruc)*MAX_DIACR, GFP_KERNEL);
         if (!kbd->accent_table)
                 goto out_fn_handler;
         memcpy(kbd->accent_table, accent_table,
-               sizeof(struct kbdiacr)*MAX_DIACR);
+               sizeof(struct kbdiacruc)*MAX_DIACR);
         kbd->accent_table_size = accent_table_size;
         return kbd;
 
@@ -183,8 +184,8 @@ kbd_ebcasc(struct kbd_data *kbd, unsigned char *ebcasc)
  * Otherwise, conclude that DIACR was not combining after all,
  * queue it and return CH.
  */
-static unsigned char
-handle_diacr(struct kbd_data *kbd, unsigned char ch)
+static unsigned int
+handle_diacr(struct kbd_data *kbd, unsigned int ch)
 {
         int i, d;
 
@@ -460,7 +461,6 @@ int
 kbd_ioctl(struct kbd_data *kbd, struct file *file,
           unsigned int cmd, unsigned long arg)
 {
-        struct kbdiacrs __user *a;
         void __user *argp;
         int ct, perm;
 
@@ -481,17 +481,40 @@ kbd_ioctl(struct kbd_data *kbd, struct file *file,
         case KDSKBSENT:
                 return do_kdgkb_ioctl(kbd, argp, cmd, perm);
         case KDGKBDIACR:
-                a = argp;
+        {
+                struct kbdiacrs __user *a = argp;
+                struct kbdiacr diacr;
+                int i;
 
                 if (put_user(kbd->accent_table_size, &a->kb_cnt))
                         return -EFAULT;
+                for (i = 0; i < kbd->accent_table_size; i++) {
+                        diacr.diacr = kbd->accent_table[i].diacr;
+                        diacr.base = kbd->accent_table[i].base;
+                        diacr.result = kbd->accent_table[i].result;
+                        if (copy_to_user(a->kbdiacr + i, &diacr, sizeof(struct kbdiacr)))
+                        return -EFAULT;
+                }
+                return 0;
+        }
+        case KDGKBDIACRUC:
+        {
+                struct kbdiacrsuc __user *a = argp;
+
                 ct = kbd->accent_table_size;
-                if (copy_to_user(a->kbdiacr, kbd->accent_table,
-                                 ct * sizeof(struct kbdiacr)))
+                if (put_user(ct, &a->kb_cnt))
+                        return -EFAULT;
+                if (copy_to_user(a->kbdiacruc, kbd->accent_table,
+                                 ct * sizeof(struct kbdiacruc)))
                         return -EFAULT;
                 return 0;
+        }
         case KDSKBDIACR:
-                a = argp;
+        {
+                struct kbdiacrs __user *a = argp;
+                struct kbdiacr diacr;
+                int i;
+
                 if (!perm)
                         return -EPERM;
                 if (get_user(ct, &a->kb_cnt))
@@ -499,10 +522,31 @@ kbd_ioctl(struct kbd_data *kbd, struct file *file,
                 if (ct >= MAX_DIACR)
                         return -EINVAL;
                 kbd->accent_table_size = ct;
-                if (copy_from_user(kbd->accent_table, a->kbdiacr,
-                                   ct * sizeof(struct kbdiacr)))
+                for (i = 0; i < ct; i++) {
+                        if (copy_from_user(&diacr, a->kbdiacr + i, sizeof(struct kbdiacr)))
+                                return -EFAULT;
+                        kbd->accent_table[i].diacr = diacr.diacr;
+                        kbd->accent_table[i].base = diacr.base;
+                        kbd->accent_table[i].result = diacr.result;
+                }
+                return 0;
+        }
+        case KDSKBDIACRUC:
+        {
+                struct kbdiacrsuc __user *a = argp;
+
+                if (!perm)
+                        return -EPERM;
+                if (get_user(ct, &a->kb_cnt))
+                        return -EFAULT;
+                if (ct >= MAX_DIACR)
+                        return -EINVAL;
+                kbd->accent_table_size = ct;
+                if (copy_from_user(kbd->accent_table, a->kbdiacruc,
+                                   ct * sizeof(struct kbdiacruc)))
                         return -EFAULT;
                 return 0;
+        }
         default:
                 return -ENOIOCTLCMD;
         }
diff --git a/drivers/s390/char/keyboard.h b/drivers/s390/char/keyboard.h
index f7bf45c6bf0d..5ccfe9cf126d 100644
--- a/drivers/s390/char/keyboard.h
+++ b/drivers/s390/char/keyboard.h
@@ -25,9 +25,9 @@ struct kbd_data {
         unsigned short **key_maps;
         char **func_table;
         fn_handler_fn **fn_handler;
-        struct kbdiacr *accent_table;
+        struct kbdiacruc *accent_table;
         unsigned int accent_table_size;
-        unsigned char diacr;
+        unsigned int diacr;
         unsigned short sysrq;
 };
 
diff --git a/drivers/tc/lk201-map.c_shipped b/drivers/tc/lk201-map.c_shipped
index a9df8f5bf62b..4d2aba597343 100644
--- a/drivers/tc/lk201-map.c_shipped
+++ b/drivers/tc/lk201-map.c_shipped
@@ -225,7 +225,7 @@ char *func_table[MAX_NR_FUNC] = {
         0,
 };
 
-struct kbdiacr accent_table[MAX_DIACR] = {
+struct kbdiacruc accent_table[MAX_DIACR] = {
         {'`', 'A', 'À'},        {'`', 'a', 'à'},
         {'\'', 'A', 'Á'},       {'\'', 'a', 'á'},
         {'^', 'A', 'Â'},        {'^', 'a', 'â'},
diff --git a/include/linux/consolemap.h b/include/linux/consolemap.h
index 06b2768c603f..e2bf7e5db39a 100644
--- a/include/linux/consolemap.h
+++ b/include/linux/consolemap.h
@@ -16,4 +16,5 @@ extern u16 inverse_translate(struct vc_data *conp, int glyph, int use_unicode);
 extern unsigned short *set_translate(int m, struct vc_data *vc);
 extern int conv_uni_to_pc(struct vc_data *conp, long ucs);
 extern u32 conv_8bit_to_uni(unsigned char c);
+extern int conv_uni_to_8bit(u32 uni);
 void console_map_init(void);
diff --git a/include/linux/kbd_diacr.h b/include/linux/kbd_diacr.h
index 1c1a3ff0535b..7274ec68c246 100644
--- a/include/linux/kbd_diacr.h
+++ b/include/linux/kbd_diacr.h
@@ -2,7 +2,7 @@
 #define _DIACR_H
 #include <linux/kd.h>
 
-extern struct kbdiacr accent_table[];
+extern struct kbdiacruc accent_table[];
 extern unsigned int accent_table_size;
 
 #endif /* _DIACR_H */
diff --git a/include/linux/kd.h b/include/linux/kd.h
index 28be4fbe9044..c91fc0c9c495 100644
--- a/include/linux/kd.h
+++ b/include/linux/kd.h
@@ -125,6 +125,16 @@ struct kbdiacrs {
 #define KDGKBDIACR      0x4B4A  /* read kernel accent table */
 #define KDSKBDIACR      0x4B4B  /* write kernel accent table */
 
+struct kbdiacruc {
+        __u32 diacr, base, result;
+};
+struct kbdiacrsuc {
+        unsigned int kb_cnt;    /* number of entries in following array */
+        struct kbdiacruc kbdiacruc[256];    /* MAX_DIACR from keyboard.h */
+};
+#define KDGKBDIACRUC    0x4BFA  /* read kernel accent table - UCS */
+#define KDSKBDIACRUC    0x4BFB  /* write kernel accent table - UCS */
+
 struct kbkeycode {
         unsigned int scancode, keycode;
 };