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authorJan Engelhardt <jengelh@linux01.gwdg.de>2007-07-15 23:40:40 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:46 -0700
commit759448f459234bfcf34b82471f0dba77a9aca498 (patch)
tree61cbf8501bdad78c03e034072791fbf3e0436d43 /drivers/char/keyboard.c
parentaa0ac36518be648dda3a32f0b37a8b2b546e1b24 (diff)
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Kernel utf-8 handling
This patch fixes dead keys and copy/paste of non-ASCII characters in UTF-8 mode on Linux console. See more details about the original patch at: http://chris.heathens.co.nz/linux/utf8.html Already posted on (Oldest) http://lkml.org/lkml/2003/5/31/148 http://lkml.org/lkml/2005/12/24/69 (Recent) http://lkml.org/lkml/2006/8/7/75 [bunk@stusta.de: make drivers/char/selection.c:store_utf8() static] Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Cc: Alexander E. Patrakov <patrakov@ums.usu.ru> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/keyboard.c')
-rw-r--r--drivers/char/keyboard.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 90965b4def5..2ce0af1bd58 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -24,6 +24,7 @@
* 21-08-02: Converted to input API, major cleanup. (Vojtech Pavlik)
*/
+#include <linux/consolemap.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/tty.h>
@@ -308,10 +309,9 @@ static void applkey(struct vc_data *vc, int key, char mode)
* Many other routines do put_queue, but I think either
* they produce ASCII, or they produce some user-assigned
* string, and in both cases we might assume that it is
- * in utf-8 already. UTF-8 is defined for words of up to 31 bits,
- * but we need only 16 bits here
+ * in utf-8 already.
*/
-static void to_utf8(struct vc_data *vc, ushort c)
+static void to_utf8(struct vc_data *vc, uint c)
{
if (c < 0x80)
/* 0******* */
@@ -320,11 +320,21 @@ static void to_utf8(struct vc_data *vc, ushort c)
/* 110***** 10****** */
put_queue(vc, 0xc0 | (c >> 6));
put_queue(vc, 0x80 | (c & 0x3f));
- } else {
+ } else if (c < 0x10000) {
+ if (c >= 0xD800 && c < 0xE000)
+ return;
+ if (c == 0xFFFF)
+ return;
/* 1110**** 10****** 10****** */
put_queue(vc, 0xe0 | (c >> 12));
put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
put_queue(vc, 0x80 | (c & 0x3f));
+ } else if (c < 0x110000) {
+ /* 11110*** 10****** 10****** 10****** */
+ put_queue(vc, 0xf0 | (c >> 18));
+ put_queue(vc, 0x80 | ((c >> 12) & 0x3f));
+ put_queue(vc, 0x80 | ((c >> 6) & 0x3f));
+ put_queue(vc, 0x80 | (c & 0x3f));
}
}
@@ -393,7 +403,7 @@ static unsigned int handle_diacr(struct vc_data *vc, unsigned int ch)
return d;
if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, d);
+ to_utf8(vc, conv_8bit_to_uni(d));
else if (d < 0x100)
put_queue(vc, d);
@@ -407,7 +417,7 @@ static void fn_enter(struct vc_data *vc)
{
if (diacr) {
if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, diacr);
+ to_utf8(vc, conv_8bit_to_uni(diacr));
else if (diacr < 0x100)
put_queue(vc, diacr);
diacr = 0;
@@ -617,7 +627,7 @@ static void k_unicode(struct vc_data *vc, unsigned int value, char up_flag)
return;
}
if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, value);
+ to_utf8(vc, conv_8bit_to_uni(value));
else if (value < 0x100)
put_queue(vc, value);
}
@@ -775,7 +785,7 @@ static void k_shift(struct vc_data *vc, unsigned char value, char up_flag)
/* kludge */
if (up_flag && shift_state != old_state && npadch != -1) {
if (kbd->kbdmode == VC_UNICODE)
- to_utf8(vc, npadch & 0xffff);
+ to_utf8(vc, npadch);
else
put_queue(vc, npadch & 0xff);
npadch = -1;