pxa27x: Add 'const' attribute to keyboard maps

The mapping is a hardware feature, so it is relatively constant.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

hw/arm/mainstone.c

@@ -45,7 +45,7 @@
 #define S1_STSCHG_IRQ 14
 #define S1_IRQ        15
 
-static struct keymap map[0xE0] = {
+static const struct keymap map[0xE0] = {
     [0 ... 0xDF] = { -1, -1 },
     [0x1e] = {0,0}, /* a */
     [0x30] = {0,1}, /* b */

hw/arm/z2.c

@@ -33,7 +33,7 @@
 #define DPRINTF(fmt, ...)
 #endif
 
-static struct keymap map[0x100] = {
+static const struct keymap map[0x100] = {
     [0 ... 0xff] = { -1, -1 },
     [0x3b] = {0, 0}, /* Option = F1 */
     [0xc8] = {0, 1}, /* Up */

hw/input/pxa2xx_keypad.c

@@ -85,7 +85,7 @@
 struct PXA2xxKeyPadState {
     MemoryRegion iomem;
     qemu_irq    irq;
-    struct  keymap *map;
+    const struct  keymap *map;
     int         pressed_cnt;
     int         alt_code;
 
@@ -322,8 +322,8 @@ PXA2xxKeyPadState *pxa27x_keypad_init(MemoryRegion *sysmem,
     return s;
 }
 
-void pxa27x_register_keypad(PXA2xxKeyPadState *kp, struct keymap *map,
-        int size)
+void pxa27x_register_keypad(PXA2xxKeyPadState *kp,
+                            const struct keymap *map, int size)
 {
     if(!map || size < 0x80) {
         fprintf(stderr, "%s - No PXA keypad map defined\n", __FUNCTION__);

include/hw/arm/pxa.h

@@ -109,8 +109,8 @@ typedef struct PXA2xxKeyPadState PXA2xxKeyPadState;
 PXA2xxKeyPadState *pxa27x_keypad_init(MemoryRegion *sysmem,
                                       hwaddr base,
                                       qemu_irq irq);
-void pxa27x_register_keypad(PXA2xxKeyPadState *kp, struct keymap *map,
-                int size);
+void pxa27x_register_keypad(PXA2xxKeyPadState *kp,
+                            const struct keymap *map, int size);
 
 /* pxa2xx.c */
 typedef struct PXA2xxI2CState PXA2xxI2CState;