lasi: use constants for device register offsets

Instead of generating the offset based upon the physical address of the
register, add constants for each of the device registers to lasi.h and
update lasi.c to use them.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Helge Deller <deller@gmx.de>
Message-Id: <20220504092600.10048-40-mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

hw/hppa/lasi.c

@@ -36,10 +36,10 @@ static bool lasi_chip_mem_valid(void *opaque, hwaddr addr,
     case LASI_ICR:
     case LASI_IAR:
 
-    case (LASI_LAN_HPA - LASI_HPA):
-    case (LASI_LPT_HPA - LASI_HPA):
-    case (LASI_UART_HPA - LASI_HPA):
-    case (LASI_RTC_HPA - LASI_HPA):
+    case LASI_LPT:
+    case LASI_UART:
+    case LASI_LAN:
+    case LASI_RTC:
 
     case LASI_PCR ... LASI_AMR:
         ret = true;
@@ -76,12 +76,12 @@ static MemTxResult lasi_chip_read_with_attrs(void *opaque, hwaddr addr,
         val = s->iar;
         break;
 
-    case (LASI_LAN_HPA - LASI_HPA):
-    case (LASI_LPT_HPA - LASI_HPA):
-    case (LASI_UART_HPA - LASI_HPA):
+    case LASI_LPT:
+    case LASI_UART:
+    case LASI_LAN:
         val = 0;
         break;
-    case (LASI_RTC_HPA - LASI_HPA):
+    case LASI_RTC:
         val = time(NULL);
         val += s->rtc_ref;
         break;
@@ -141,16 +141,16 @@ static MemTxResult lasi_chip_write_with_attrs(void *opaque, hwaddr addr,
         s->iar = val;
         break;
 
-    case (LASI_LAN_HPA - LASI_HPA):
-        /* XXX: reset LAN card */
-        break;
-    case (LASI_LPT_HPA - LASI_HPA):
+    case LASI_LPT:
         /* XXX: reset parallel port */
         break;
-    case (LASI_UART_HPA - LASI_HPA):
+    case LASI_UART:
         /* XXX: reset serial port */
         break;
-    case (LASI_RTC_HPA - LASI_HPA):
+    case LASI_LAN:
+        /* XXX: reset LAN card */
+        break;
+    case LASI_RTC:
         s->rtc_ref = val - time(NULL);
         break;
 

hw/hppa/lasi.h

@@ -21,6 +21,11 @@ OBJECT_DECLARE_SIMPLE_TYPE(LasiState, LASI_CHIP)
 #define LASI_ICR        0x0c
 #define LASI_IAR        0x10
 
+#define LASI_LPT        0x02000
+#define LASI_UART       0x05000
+#define LASI_LAN        0x07000
+#define LASI_RTC        0x09000
+
 #define LASI_PCR        0x0C000 /* LASI Power Control register */
 #define LASI_ERRLOG     0x0C004 /* LASI Error Logging register */
 #define LASI_VER        0x0C008 /* LASI Version Control register */