xref: /openbmc/qemu/hw/display/ramfb-standalone.c (revision f7160f32)
1 #include "qemu/osdep.h"
2 #include "qapi/error.h"
3 #include "qemu/module.h"
4 #include "hw/loader.h"
5 #include "hw/qdev-properties.h"
6 #include "hw/display/ramfb.h"
7 #include "ui/console.h"
8 
9 #define RAMFB(obj) OBJECT_CHECK(RAMFBStandaloneState, (obj), TYPE_RAMFB_DEVICE)
10 
11 typedef struct RAMFBStandaloneState {
12     SysBusDevice parent_obj;
13     QemuConsole *con;
14     RAMFBState *state;
15 } RAMFBStandaloneState;
16 
17 static void display_update_wrapper(void *dev)
18 {
19     RAMFBStandaloneState *ramfb = RAMFB(dev);
20 
21     if (0 /* native driver active */) {
22         /* non-standalone device would run native display update here */;
23     } else {
24         ramfb_display_update(ramfb->con, ramfb->state);
25     }
26 }
27 
28 static const GraphicHwOps wrapper_ops = {
29     .gfx_update = display_update_wrapper,
30 };
31 
32 static void ramfb_realizefn(DeviceState *dev, Error **errp)
33 {
34     RAMFBStandaloneState *ramfb = RAMFB(dev);
35 
36     ramfb->con = graphic_console_init(dev, 0, &wrapper_ops, dev);
37     ramfb->state = ramfb_setup(errp);
38 }
39 
40 static void ramfb_class_initfn(ObjectClass *klass, void *data)
41 {
42     DeviceClass *dc = DEVICE_CLASS(klass);
43 
44     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
45     dc->realize = ramfb_realizefn;
46     dc->desc = "ram framebuffer standalone device";
47     dc->user_creatable = true;
48 }
49 
50 static const TypeInfo ramfb_info = {
51     .name          = TYPE_RAMFB_DEVICE,
52     .parent        = TYPE_SYS_BUS_DEVICE,
53     .instance_size = sizeof(RAMFBStandaloneState),
54     .class_init    = ramfb_class_initfn,
55 };
56 
57 static void ramfb_register_types(void)
58 {
59     type_register_static(&ramfb_info);
60 }
61 
62 type_init(ramfb_register_types)
63