[Qemu-devel] [PATCH v10 7/9] hw/m68k: add Nubus support for macfb video card

[Laurent Vivier <laurent@vivier.eu>]

From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

Co-developed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
---
 hw/display/Kconfig         |  1 +
 hw/display/macfb.c         | 56 ++++++++++++++++++++++++++++++++++++++
 include/hw/display/macfb.h | 21 ++++++++++++++
 3 files changed, 78 insertions(+)

diff --git a/hw/display/Kconfig b/hw/display/Kconfig
index 32e8d29003..c500d1fc6d 100644
--- a/hw/display/Kconfig
+++ b/hw/display/Kconfig
@@ -136,3 +136,4 @@ config ATI_VGA
 config MACFB
     bool
     select FRAMEBUFFER
+    depends on NUBUS
diff --git a/hw/display/macfb.c b/hw/display/macfb.c
index d7c5ef296e..f4fa8e3206 100644
--- a/hw/display/macfb.c
+++ b/hw/display/macfb.c
@@ -15,6 +15,7 @@
 #include "hw/sysbus.h"
 #include "ui/console.h"
 #include "ui/pixel_ops.h"
+#include "hw/nubus/nubus.h"
 #include "hw/display/macfb.h"
 #include "qapi/error.h"
 #include "hw/qdev-properties.h"
@@ -382,12 +383,38 @@ static void macfb_sysbus_realize(DeviceState *dev, Error **errp)
     sysbus_init_mmio(SYS_BUS_DEVICE(s), &ms->mem_vram);
 }
 
+const uint8_t macfb_rom[] = {
+    255, 0, 0, 0,
+};
+
+static void macfb_nubus_realize(DeviceState *dev, Error **errp)
+{
+    NubusDevice *nd = NUBUS_DEVICE(dev);
+    MacfbNubusState *s = NUBUS_MACFB(dev);
+    MacfbNubusDeviceClass *ndc = MACFB_NUBUS_GET_CLASS(dev);
+    MacfbState *ms = &s->macfb;
+
+    ndc->parent_realize(dev, errp);
+
+    macfb_common_realize(dev, ms, errp);
+    memory_region_add_subregion(&nd->slot_mem, DAFB_BASE, &ms->mem_ctrl);
+    memory_region_add_subregion(&nd->slot_mem, VIDEO_BASE, &ms->mem_vram);
+
+    nubus_register_rom(nd, macfb_rom, sizeof(macfb_rom), 1, 9, 0xf);
+}
+
 static void macfb_sysbus_reset(DeviceState *d)
 {
     MacfbSysBusState *s = MACFB(d);
     macfb_reset(&s->macfb);
 }
 
+static void macfb_nubus_reset(DeviceState *d)
+{
+    MacfbNubusState *s = NUBUS_MACFB(d);
+    macfb_reset(&s->macfb);
+}
+
 static Property macfb_sysbus_properties[] = {
     DEFINE_PROP_UINT32("width", MacfbSysBusState, macfb.width, 640),
     DEFINE_PROP_UINT32("height", MacfbSysBusState, macfb.height, 480),
@@ -395,6 +422,13 @@ static Property macfb_sysbus_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
+static Property macfb_nubus_properties[] = {
+    DEFINE_PROP_UINT32("width", MacfbNubusState, macfb.width, 640),
+    DEFINE_PROP_UINT32("height", MacfbNubusState, macfb.height, 480),
+    DEFINE_PROP_UINT8("depth", MacfbNubusState, macfb.depth, 8),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void macfb_sysbus_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -406,6 +440,19 @@ static void macfb_sysbus_class_init(ObjectClass *klass, void *data)
     dc->props = macfb_sysbus_properties;
 }
 
+static void macfb_nubus_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    MacfbNubusDeviceClass *ndc = MACFB_NUBUS_DEVICE_CLASS(klass);
+
+    device_class_set_parent_realize(dc, macfb_nubus_realize,
+                                    &ndc->parent_realize);
+    dc->desc = "Nubus Macintosh framebuffer";
+    dc->reset = macfb_nubus_reset;
+    dc->vmsd = &vmstate_macfb;
+    dc->props = macfb_nubus_properties;
+}
+
 static TypeInfo macfb_sysbus_info = {
     .name          = TYPE_MACFB,
     .parent        = TYPE_SYS_BUS_DEVICE,
@@ -413,9 +460,18 @@ static TypeInfo macfb_sysbus_info = {
     .class_init    = macfb_sysbus_class_init,
 };
 
+static TypeInfo macfb_nubus_info = {
+    .name          = TYPE_NUBUS_MACFB,
+    .parent        = TYPE_NUBUS_DEVICE,
+    .instance_size = sizeof(MacfbNubusState),
+    .class_init    = macfb_nubus_class_init,
+    .class_size    = sizeof(MacfbNubusDeviceClass),
+};
+
 static void macfb_register_types(void)
 {
     type_register_static(&macfb_sysbus_info);
+    type_register_static(&macfb_nubus_info);
 }
 
 type_init(macfb_register_types)
diff --git a/include/hw/display/macfb.h b/include/hw/display/macfb.h
index 3fe2592735..26367ae2c4 100644
--- a/include/hw/display/macfb.h
+++ b/include/hw/display/macfb.h
@@ -40,4 +40,25 @@ typedef struct {
     MacfbState macfb;
 } MacfbSysBusState;
 
+#define MACFB_NUBUS_DEVICE_CLASS(class) \
+    OBJECT_CLASS_CHECK(MacfbNubusDeviceClass, (class), TYPE_NUBUS_MACFB)
+#define MACFB_NUBUS_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(MacfbNubusDeviceClass, (obj), TYPE_NUBUS_MACFB)
+
+typedef struct MacfbNubusDeviceClass {
+    DeviceClass parent_class;
+
+    DeviceRealize parent_realize;
+} MacfbNubusDeviceClass;
+
+#define TYPE_NUBUS_MACFB "nubus-macfb"
+#define NUBUS_MACFB(obj) \
+    OBJECT_CHECK(MacfbNubusState, (obj), TYPE_NUBUS_MACFB)
+
+typedef struct {
+    NubusDevice busdev;
+
+    MacfbState macfb;
+} MacfbNubusState;
+
 #endif
-- 
2.21.0