i386: Add x-force-features option for testing

[mirror_qemu.git] / hw / misc / mos6522.c

diff --git a/hw/misc/mos6522.c b/hw/misc/mos6522.c
index 8ad9fc831ef9d55f141e476f03888805dda5aedd..e72ed69d5112349e6c9e3ae6e4db70bbef4751ad 100644 (file)
--- a/hw/misc/mos6522.c
+++ b/hw/misc/mos6522.c
@@ -23,6 +23,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */
+
 #include "qemu/osdep.h"
 #include "hw/hw.h"
 #include "hw/input/adb.h"
@@ -31,6 +32,7 @@
 #include "sysemu/sysemu.h"
 #include "qemu/cutils.h"
 #include "qemu/log.h"
+#include "qemu/module.h"
 #include "trace.h"
 
 /* XXX: implement all timer modes */
@@ -40,7 +42,7 @@ static void mos6522_timer_update(MOS6522State *s, MOS6522Timer *ti,
 
 static void mos6522_update_irq(MOS6522State *s)
 {
-    if (s->ifr & s->ier & (SR_INT | T1_INT | T2_INT)) {
+    if (s->ifr & s->ier) {
         qemu_irq_raise(s->irq);
     } else {
         qemu_irq_lower(s->irq);
@@ -176,12 +178,8 @@ static void mos6522_set_sr_int(MOS6522State *s)
 
 static uint64_t mos6522_get_counter_value(MOS6522State *s, MOS6522Timer *ti)
 {
-    uint64_t d;
-
-    d = muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - ti->load_time,
-                 ti->frequency, NANOSECONDS_PER_SECOND);
-
-    return d;
+    return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - ti->load_time,
+                    ti->frequency, NANOSECONDS_PER_SECOND);
 }
 
 static uint64_t mos6522_get_load_time(MOS6522State *s, MOS6522Timer *ti)
@@ -193,12 +191,12 @@ static uint64_t mos6522_get_load_time(MOS6522State *s, MOS6522Timer *ti)
 
 static void mos6522_portA_write(MOS6522State *s)
 {
-    qemu_log_mask(LOG_UNIMP, "portA_write unimplemented");
+    qemu_log_mask(LOG_UNIMP, "portA_write unimplemented\n");
 }
 
 static void mos6522_portB_write(MOS6522State *s)
 {
-    qemu_log_mask(LOG_UNIMP, "portB_write unimplemented");
+    qemu_log_mask(LOG_UNIMP, "portB_write unimplemented\n");
 }
 
 uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size)
@@ -245,7 +243,7 @@ uint64_t mos6522_read(void *opaque, hwaddr addr, unsigned size)
         break;
     case VIA_REG_SR:
         val = s->sr;
-        s->ifr &= ~(SR_INT | CB1_INT | CB2_INT);
+        s->ifr &= ~SR_INT;
         mos6522_update_irq(s);
         break;
     case VIA_REG_ACR:
@@ -373,13 +371,6 @@ static const MemoryRegionOps mos6522_ops = {
     },
 };
 
-static bool mos6522_timer_exist(void *opaque, int version_id)
-{
-    MOS6522Timer *s = opaque;
-
-    return s->timer != NULL;
-}
-
 static const VMStateDescription vmstate_mos6522_timer = {
     .name = "mos6522_timer",
     .version_id = 0,
@@ -389,12 +380,12 @@ static const VMStateDescription vmstate_mos6522_timer = {
         VMSTATE_UINT16(counter_value, MOS6522Timer),
         VMSTATE_INT64(load_time, MOS6522Timer),
         VMSTATE_INT64(next_irq_time, MOS6522Timer),
-        VMSTATE_TIMER_PTR_TEST(timer, MOS6522Timer, mos6522_timer_exist),
+        VMSTATE_TIMER_PTR(timer, MOS6522Timer),
         VMSTATE_END_OF_LIST()
     }
 };
 
-static const VMStateDescription vmstate_mos6522 = {
+const VMStateDescription vmstate_mos6522 = {
     .name = "mos6522",
     .version_id = 0,
     .minimum_version_id = 0,
@@ -409,7 +400,7 @@ static const VMStateDescription vmstate_mos6522 = {
         VMSTATE_UINT8(ifr, MOS6522State),
         VMSTATE_UINT8(ier, MOS6522State),
         VMSTATE_UINT8(anh, MOS6522State),
-        VMSTATE_STRUCT_ARRAY(timers, MOS6522State, 2, 1,
+        VMSTATE_STRUCT_ARRAY(timers, MOS6522State, 2, 0,
                              vmstate_mos6522_timer, MOS6522Timer),
         VMSTATE_END_OF_LIST()
     }
@@ -431,18 +422,12 @@ static void mos6522_reset(DeviceState *dev)
     /* s->ier = T1_INT | SR_INT; */
     s->anh = 0;
 
+    s->timers[0].frequency = s->frequency;
     s->timers[0].latch = 0xffff;
     set_counter(s, &s->timers[0], 0xffff);
 
-    s->timers[1].latch = 0xffff;
-}
-
-static void mos6522_realize(DeviceState *dev, Error **errp)
-{
-    MOS6522State *s = MOS6522(dev);
-
-    s->timers[0].frequency = s->frequency;
     s->timers[1].frequency = s->frequency;
+    s->timers[1].latch = 0xffff;
 }
 
 static void mos6522_init(Object *obj)
@@ -473,14 +458,14 @@ static void mos6522_class_init(ObjectClass *oc, void *data)
     DeviceClass *dc = DEVICE_CLASS(oc);
     MOS6522DeviceClass *mdc = MOS6522_DEVICE_CLASS(oc);
 
-    dc->realize = mos6522_realize;
     dc->reset = mos6522_reset;
     dc->vmsd = &vmstate_mos6522;
     dc->props = mos6522_properties;
-    mdc->parent_realize = dc->realize;
+    mdc->parent_reset = dc->reset;
     mdc->set_sr_int = mos6522_set_sr_int;
     mdc->portB_write = mos6522_portB_write;
     mdc->portA_write = mos6522_portA_write;
+    mdc->update_irq = mos6522_update_irq;
     mdc->get_timer1_counter_value = mos6522_get_counter_value;
     mdc->get_timer2_counter_value = mos6522_get_counter_value;
     mdc->get_timer1_load_time = mos6522_get_load_time;