acpi: move aml builder code for parallel device

Also adds support for multiple LPT devices.

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: <20200515150421.25479-8-kraxel@redhat.com>

hw/char/parallel.c

@@ -28,6 +28,7 @@
 #include "qemu/module.h"
 #include "chardev/char-parallel.h"
 #include "chardev/char-fe.h"
+#include "hw/acpi/aml-build.h"
 #include "hw/irq.h"
 #include "hw/isa/isa.h"
 #include "hw/qdev-properties.h"
@@ -568,6 +569,25 @@ static void parallel_isa_realizefn(DeviceState *dev, Error **errp)
                              s, "parallel");
 }
 
+static void parallel_isa_build_aml(ISADevice *isadev, Aml *scope)
+{
+    ISAParallelState *isa = ISA_PARALLEL(isadev);
+    Aml *dev;
+    Aml *crs;
+
+    crs = aml_resource_template();
+    aml_append(crs, aml_io(AML_DECODE16, isa->iobase, isa->iobase, 0x08, 0x08));
+    aml_append(crs, aml_irq_no_flags(isa->isairq));
+
+    dev = aml_device("LPT%d", isa->index + 1);
+    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0400")));
+    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);
+}
+
 /* Memory mapped interface */
 static uint64_t parallel_mm_readfn(void *opaque, hwaddr addr, unsigned size)
 {
@@ -624,9 +644,11 @@ static Property parallel_isa_properties[] = {
 static void parallel_isa_class_initfn(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
+    ISADeviceClass *isa = ISA_DEVICE_CLASS(klass);
 
     dc->realize = parallel_isa_realizefn;
     dc->vmsd = &vmstate_parallel_isa;
+    isa->build_aml = parallel_isa_build_aml;
     device_class_set_props(dc, parallel_isa_properties);
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
 }

hw/i386/acpi-build.c

@@ -1173,28 +1173,6 @@ static Aml *build_mouse_device_aml(void)
     return dev;
 }
 
-static void build_lpt_device_aml(Aml *scope)
-{
-    Aml *dev;
-    Aml *crs;
-
-    if (!memory_region_present(get_system_io(), 0x0378)) {
-        return;
-    }
-
-    dev = aml_device("LPT");
-    aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0400")));
-
-    aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
-
-    crs = aml_resource_template();
-    aml_append(crs, aml_io(AML_DECODE16, 0x0378, 0x0378, 0x08, 0x08));
-    aml_append(crs, aml_irq_no_flags(7));
-    aml_append(dev, aml_name_decl("_CRS", crs));
-
-    aml_append(scope, dev);
-}
-
 static void build_isa_devices_aml(Aml *table)
 {
     ISADevice *fdc = pc_find_fdc0();
@@ -1208,7 +1186,6 @@ static void build_isa_devices_aml(Aml *table)
     if (fdc) {
         aml_append(scope, build_fdc_device_aml(fdc));
     }
-    build_lpt_device_aml(scope);
 
     if (ambiguous) {
         error_report("Multiple ISA busses, unable to define IPMI ACPI data");