[Qemu-devel] [PATCH 4/5] keymap: record multiple keysym -> keycode mappings

[Gerd Hoffmann]

Sometimes the same keysym can be created using different key
combinations.  Record them all in the reverse keymap, not only
the first one.

Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
 ui/keymaps.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/ui/keymaps.c b/ui/keymaps.c
index 4dd92edc7d..d22b3555dd 100644
--- a/ui/keymaps.c
+++ b/ui/keymaps.c
@@ -29,7 +29,8 @@
 #include "qemu/error-report.h"
 
 struct keysym2code {
-    uint16_t keycode;
+    uint32_t count;
+    uint16_t keycodes[4];
 };
 
 struct kbd_layout_t {
@@ -67,11 +68,19 @@ static void add_keysym(char *line, int keysym, int keycode, 
kbd_layout_t *k)
     struct keysym2code *keysym2code;
 
     keysym2code = g_hash_table_lookup(k->hash, hashkey(keysym));
-    if (keysym2code)
+    if (keysym2code) {
+        if (keysym2code->count < ARRAY_SIZE(keysym2code->keycodes)) {
+            keysym2code->keycodes[keysym2code->count++] = keycode;
+        } else {
+            warn_report("more than %zd keycodes for keysym %d",
+                        ARRAY_SIZE(keysym2code->keycodes), keysym);
+        }
         return;
+    }
 
     keysym2code = g_new0(struct keysym2code, 1);
-    keysym2code->keycode = keycode;
+    keysym2code->keycodes[0] = keycode;
+    keysym2code->count = 1;
     g_hash_table_replace(k->hash, hashkey(keysym), keysym2code);
     trace_keymap_add(keysym, keycode, line);
 }
@@ -189,7 +198,7 @@ int keysym2scancode(kbd_layout_t *k, int keysym)
         return 0;
     }
 
-    return keysym2code->keycode;
+    return keysym2code->keycodes[0];
 }
 
 int keycode_is_keypad(kbd_layout_t *k, int keycode)
-- 
2.9.3