qemu: create helper for event notification (Marcelo Tosatti)

[qemu.git] / hw / sh_serial.c

diff --git a/hw/sh_serial.c b/hw/sh_serial.c
index 8397739de982b2b651e38c5501443f86b435a26e..4957c41ae8cf0959815e1deda0a639c067c7a305 100644 (file)
--- a/hw/sh_serial.c
+++ b/hw/sh_serial.c
@@ -167,19 +167,19 @@ static void sh_serial_ioport_write(void *opaque, uint32_t offs, uint32_t val)
         }
     }
     else {
-#if 0
         switch(offs) {
+#if 0
         case 0x0c:
             ret = s->dr;
             break;
         case 0x10:
             ret = 0;
             break;
+#endif
         case 0x1c:
-            ret = s->sptr;
-            break;
+            s->sptr = val & 0x8f;
+            return;
         }
-#endif
     }
 
     fprintf(stderr, "sh_serial: unsupported write to 0x%02x\n", offs);
@@ -259,8 +259,8 @@ static uint32_t sh_serial_ioport_read(void *opaque, uint32_t offs)
         }
     }
     else {
-#if 0
         switch(offs) {
+#if 0
         case 0x0c:
             ret = s->dr;
             break;
@@ -270,11 +270,11 @@ static uint32_t sh_serial_ioport_read(void *opaque, uint32_t offs)
         case 0x14:
             ret = s->rx_fifo[0];
             break;
+#endif
         case 0x1c:
             ret = s->sptr;
             break;
         }
-#endif
     }
 #ifdef DEBUG_SERIAL
     printf("sh_serial: read offs=0x%02x val=0x%x\n",
@@ -376,8 +376,6 @@ void sh_serial_init (target_phys_addr_t base, int feat,
     int s_io_memory;
 
     s = qemu_mallocz(sizeof(sh_serial_state));
-    if (!s)
-        return;
 
     s->feat = feat;
     s->flags = SH_SERIAL_FLAG_TEND | SH_SERIAL_FLAG_TDE;
@@ -399,7 +397,8 @@ void sh_serial_init (target_phys_addr_t base, int feat,
 
     s_io_memory = cpu_register_io_memory(0, sh_serial_readfn,
                                         sh_serial_writefn, s);
-    cpu_register_physical_memory(base, 0x28, s_io_memory);
+    cpu_register_physical_memory(P4ADDR(base), 0x28, s_io_memory);
+    cpu_register_physical_memory(A7ADDR(base), 0x28, s_io_memory);
 
     s->chr = chr;