Add qemu 2.4.0

[kvmfornfv.git] / qemu / hw / char / serial-isa.c

diff --git a/qemu/hw/char/serial-isa.c b/qemu/hw/char/serial-isa.c
new file mode 100644 (file)
index 0000000..f3db024
--- /dev/null
+++ b/qemu/hw/char/serial-isa.c
@@ -0,0 +1,145 @@
+/*
+ * QEMU 16550A UART emulation
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ * Copyright (c) 2008 Citrix Systems, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw/char/serial.h"
+#include "hw/isa/isa.h"
+
+#define ISA_SERIAL(obj) OBJECT_CHECK(ISASerialState, (obj), TYPE_ISA_SERIAL)
+
+typedef struct ISASerialState {
+    ISADevice parent_obj;
+
+    uint32_t index;
+    uint32_t iobase;
+    uint32_t isairq;
+    SerialState state;
+} ISASerialState;
+
+static const int isa_serial_io[MAX_SERIAL_PORTS] = {
+    0x3f8, 0x2f8, 0x3e8, 0x2e8
+};
+static const int isa_serial_irq[MAX_SERIAL_PORTS] = {
+    4, 3, 4, 3
+};
+
+static void serial_isa_realizefn(DeviceState *dev, Error **errp)
+{
+    static int index;
+    ISADevice *isadev = ISA_DEVICE(dev);
+    ISASerialState *isa = ISA_SERIAL(dev);
+    SerialState *s = &isa->state;
+
+    if (isa->index == -1) {
+        isa->index = index;
+    }
+    if (isa->index >= MAX_SERIAL_PORTS) {
+        error_setg(errp, "Max. supported number of ISA serial ports is %d.",
+                   MAX_SERIAL_PORTS);
+        return;
+    }
+    if (isa->iobase == -1) {
+        isa->iobase = isa_serial_io[isa->index];
+    }
+    if (isa->isairq == -1) {
+        isa->isairq = isa_serial_irq[isa->index];
+    }
+    index++;
+
+    s->baudbase = 115200;
+    isa_init_irq(isadev, &s->irq, isa->isairq);
+    serial_realize_core(s, errp);
+    qdev_set_legacy_instance_id(dev, isa->iobase, 3);
+
+    memory_region_init_io(&s->io, OBJECT(isa), &serial_io_ops, s, "serial", 8);
+    isa_register_ioport(isadev, &s->io, isa->iobase);
+}
+
+static const VMStateDescription vmstate_isa_serial = {
+    .name = "serial",
+    .version_id = 3,
+    .minimum_version_id = 2,
+    .fields = (VMStateField[]) {
+        VMSTATE_STRUCT(state, ISASerialState, 0, vmstate_serial, SerialState),
+        VMSTATE_END_OF_LIST()
+    }
+};
+
+static Property serial_isa_properties[] = {
+    DEFINE_PROP_UINT32("index",  ISASerialState, index,   -1),
+    DEFINE_PROP_UINT32("iobase",  ISASerialState, iobase,  -1),
+    DEFINE_PROP_UINT32("irq",    ISASerialState, isairq,  -1),
+    DEFINE_PROP_CHR("chardev",   ISASerialState, state.chr),
+    DEFINE_PROP_UINT32("wakeup", ISASerialState, state.wakeup, 0),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void serial_isa_class_initfn(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+
+    dc->realize = serial_isa_realizefn;
+    dc->vmsd = &vmstate_isa_serial;
+    dc->props = serial_isa_properties;
+    set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+}
+
+static const TypeInfo serial_isa_info = {
+    .name          = TYPE_ISA_SERIAL,
+    .parent        = TYPE_ISA_DEVICE,
+    .instance_size = sizeof(ISASerialState),
+    .class_init    = serial_isa_class_initfn,
+};
+
+static void serial_register_types(void)
+{
+    type_register_static(&serial_isa_info);
+}
+
+type_init(serial_register_types)
+
+static void serial_isa_init(ISABus *bus, int index, CharDriverState *chr)
+{
+    DeviceState *dev;
+    ISADevice *isadev;
+
+    isadev = isa_create(bus, TYPE_ISA_SERIAL);
+    dev = DEVICE(isadev);
+    qdev_prop_set_uint32(dev, "index", index);
+    qdev_prop_set_chr(dev, "chardev", chr);
+    qdev_init_nofail(dev);
+}
+
+void serial_hds_isa_init(ISABus *bus, int n)
+{
+    int i;
+
+    assert(n <= MAX_SERIAL_PORTS);
+
+    for (i = 0; i < n; ++i) {
+        if (serial_hds[i]) {
+            serial_isa_init(bus, i, serial_hds[i]);
+        }
+    }
+}