[RFC v2 25/26] hw/timer/hpet: Add HPET_TN_BASE macro

Use the HPET_TN_BASE macro instead of a hardcoded value to support
next HPET test case.

Signed-off-by: Zhao Liu <[email protected]>
---
Changes since v1:
 * New commit.
---
 hw/timer/hpet.c         | 8 ++++----
 include/hw/timer/hpet.h | 1 +
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 42285cff762b..84405e7cb4cb 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -450,7 +450,7 @@ static uint64_t hpet_ram_read(void *opaque, hwaddr addr,
 
     QEMU_LOCK_GUARD(&s->lock);
     /*address range of all global regs*/
-    if (addr <= 0xff) {
+    if (addr < HPET_TN_BASE) {
         switch (addr) {
         case HPET_ID: // including HPET_PERIOD
             return s->capability >> shift;
@@ -463,7 +463,7 @@ static uint64_t hpet_ram_read(void *opaque, hwaddr addr,
             break;
         }
     } else {
-        uint8_t timer_id = (addr - 0x100) / 0x20;
+        uint8_t timer_id = (addr - HPET_TN_BASE) / 0x20;
         HPETTimer *timer;
 
         if (timer_id >= s->num_timers) {
@@ -501,7 +501,7 @@ static void hpet_ram_write(void *opaque, hwaddr addr,
     addr &= ~4;
 
     /*address range of all global regs*/
-    if (addr <= 0xff) {
+    if (addr < HPET_TN_BASE) {
         switch (addr) {
         case HPET_ID:
             return;
@@ -564,7 +564,7 @@ static void hpet_ram_write(void *opaque, hwaddr addr,
             break;
         }
     } else {
-        uint8_t timer_id = (addr - 0x100) / 0x20;
+        uint8_t timer_id = (addr - HPET_TN_BASE) / 0x20;
         HPETTimer *timer;
 
         trace_hpet_ram_write_timer_id(timer_id);
diff --git a/include/hw/timer/hpet.h b/include/hw/timer/hpet.h
index 84be4c3529a7..cc1e48706327 100644
--- a/include/hw/timer/hpet.h
+++ b/include/hw/timer/hpet.h
@@ -37,6 +37,7 @@
 #define HPET_CFG        0x010
 #define HPET_STATUS     0x020
 #define HPET_COUNTER    0x0f0
+#define HPET_TN_BASE    0x100
 #define HPET_TN_CFG     0x000
 #define HPET_TN_CMP     0x008
 #define HPET_TN_ROUTE   0x010
-- 
2.34.1