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acpi: move aml builder code for serial device

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The code uses the isa_serial_io array to figure what the device uid is.
Side effect is that acpi antries are not limited to port 1+2 any more,
we'll also get entries for ports 3+4.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200515150421.25479-6-kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2020-05-15 17:04:10 +02:00 • committed by Michael S. Tsirkin
parent 4b8e369b91
commit dcdbfaafe9
2 changed files with 22 additions and 32 deletions
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22
hw/char/serial-isa.c
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@ -27,6 +27,7 @@
#include "qapi/error.h"
#include "qemu/module.h"
#include "sysemu/sysemu.h"
#include "hw/acpi/aml-build.h"
#include "hw/char/serial.h"
#include "hw/isa/isa.h"
#include "hw/qdev-properties.h"
@ -81,6 +82,25 @@ static void serial_isa_realizefn(DeviceState *dev, Error **errp)
isa_register_ioport(isadev, &s->io, isa->iobase);
}
static void serial_isa_build_aml(ISADevice *isadev, Aml *scope)
{
ISASerialState *isa = ISA_SERIAL(isadev);
Aml *dev;
Aml *crs;
crs = aml_resource_template();
aml_append(crs, aml_io(AML_DECODE16, isa->iobase, isa->iobase, 0x00, 0x08));
aml_append(crs, aml_irq_no_flags(isa->isairq));
dev = aml_device("COM%d", isa->index + 1);
aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0501")));
aml_append(dev, aml_name_decl("_UID", aml_int(isa->index + 1)));
aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
aml_append(dev, aml_name_decl("_CRS", crs));
aml_append(scope, dev);
}
static const VMStateDescription vmstate_isa_serial = {
.name = "serial",
.version_id = 3,
@ -103,9 +123,11 @@ static Property serial_isa_properties[] = {
static void serial_isa_class_initfn(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
ISADeviceClass *isa = ISA_DEVICE_CLASS(klass);
dc->realize = serial_isa_realizefn;
dc->vmsd = &vmstate_isa_serial;
isa->build_aml = serial_isa_build_aml;
device_class_set_props(dc, serial_isa_properties);
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
}