[Qemu-devel] [PATCH v3] mainstone: Fix duplicate array values for key 'space'

[Stefan Weil]

cgcc reported a duplicate initialisation. Mainstone includes a matrix
keyboard where two different positions map to 'space'.

QEMU uses the reversed mapping and does not map 'space' to two different
matrix positions.

Some other keys are either missing or might be mapped wrongly (cf. Linux
kernel code). Don't fix these until someone can test them with real
hardware, but add TODO comments.

Signed-off-by: Stefan Weil <address@hidden>
---

v3: 
Use 2nd alternative, so there is no change of behaviour.

 hw/arm/mainstone.c |   13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/hw/arm/mainstone.c b/hw/arm/mainstone.c
index 9402c84..ffbf4bd 100644
--- a/hw/arm/mainstone.c
+++ b/hw/arm/mainstone.c
@@ -75,9 +75,18 @@ static struct keymap map[0xE0] = {
     [0x2c] = {4,3}, /* z */
     [0xc7] = {5,0}, /* Home */
     [0x2a] = {5,1}, /* shift */
-    [0x39] = {5,2}, /* space */
+    /*
+     * There are two matrix positions which map to space,
+     * but QEMU can only use one of them for the reverse
+     * mapping, so simply use the second one.
+     */
+    /* [0x39] = {5,2}, space */
     [0x39] = {5,3}, /* space */
-    [0x1c] = {5,5}, /*  enter */
+    /*
+     * Matrix position {5,4} and other keys are missing here.
+     * TODO: Compare with Linux code and test real hardware.
+     */
+    [0x1c] = {5,5}, /* enter (TODO: might be wrong) */
     [0xc8] = {6,0}, /* up */
     [0xd0] = {6,1}, /* down */
     [0xcb] = {6,2}, /* left */
-- 
1.7.10.4