hw/display/ramfb-standalone.c

   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)