summary refs log tree commit diff stats
path: root/hw/i386/pc.c
diff options
context:
space:
mode:
Diffstat (limited to 'hw/i386/pc.c')
-rw-r--r--hw/i386/pc.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index e36053f2a7..42014b06de 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -673,119 +673,6 @@ void pc_cmos_init(PCMachineState *pcms,
     qemu_register_reset(pc_cmos_init_late, &arg);
 }
 
-#define TYPE_PORT92 "port92"
-#define PORT92(obj) OBJECT_CHECK(Port92State, (obj), TYPE_PORT92)
-
-/* port 92 stuff: could be split off */
-typedef struct Port92State {
-    ISADevice parent_obj;
-
-    MemoryRegion io;
-    uint8_t outport;
-    qemu_irq a20_out;
-} Port92State;
-
-static void port92_write(void *opaque, hwaddr addr, uint64_t val,
-                         unsigned size)
-{
-    Port92State *s = opaque;
-    int oldval = s->outport;
-
-    trace_port92_write(val);
-    s->outport = val;
-    qemu_set_irq(s->a20_out, (val >> 1) & 1);
-    if ((val & 1) && !(oldval & 1)) {
-        qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
-    }
-}
-
-static uint64_t port92_read(void *opaque, hwaddr addr,
-                            unsigned size)
-{
-    Port92State *s = opaque;
-    uint32_t ret;
-
-    ret = s->outport;
-    trace_port92_read(ret);
-    return ret;
-}
-
-static const VMStateDescription vmstate_port92_isa = {
-    .name = "port92",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .fields = (VMStateField[]) {
-        VMSTATE_UINT8(outport, Port92State),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
-static void port92_reset(DeviceState *d)
-{
-    Port92State *s = PORT92(d);
-
-    s->outport &= ~1;
-}
-
-static const MemoryRegionOps port92_ops = {
-    .read = port92_read,
-    .write = port92_write,
-    .impl = {
-        .min_access_size = 1,
-        .max_access_size = 1,
-    },
-    .endianness = DEVICE_LITTLE_ENDIAN,
-};
-
-static void port92_initfn(Object *obj)
-{
-    Port92State *s = PORT92(obj);
-
-    memory_region_init_io(&s->io, OBJECT(s), &port92_ops, s, "port92", 1);
-
-    s->outport = 0;
-
-    qdev_init_gpio_out_named(DEVICE(obj), &s->a20_out, PORT92_A20_LINE, 1);
-}
-
-static void port92_realizefn(DeviceState *dev, Error **errp)
-{
-    ISADevice *isadev = ISA_DEVICE(dev);
-    Port92State *s = PORT92(dev);
-
-    isa_register_ioport(isadev, &s->io, 0x92);
-}
-
-static void port92_class_initfn(ObjectClass *klass, void *data)
-{
-    DeviceClass *dc = DEVICE_CLASS(klass);
-
-    dc->realize = port92_realizefn;
-    dc->reset = port92_reset;
-    dc->vmsd = &vmstate_port92_isa;
-    /*
-     * Reason: unlike ordinary ISA devices, this one needs additional
-     * wiring: its A20 output line needs to be wired up with
-     * qdev_connect_gpio_out_named().
-     */
-    dc->user_creatable = false;
-}
-
-static const TypeInfo port92_info = {
-    .name          = TYPE_PORT92,
-    .parent        = TYPE_ISA_DEVICE,
-    .instance_size = sizeof(Port92State),
-    .instance_init = port92_initfn,
-    .class_init    = port92_class_initfn,
-};
-
-static void port92_register_types(void)
-{
-    type_register_static(&port92_info);
-}
-
-type_init(port92_register_types)
-
 static void handle_a20_line_change(void *opaque, int irq, int level)
 {
     X86CPU *cpu = opaque;