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 #include "qom/object.h"
   9
  10 typedef struct RAMFBStandaloneState RAMFBStandaloneState;
  11 DECLARE_INSTANCE_CHECKER(RAMFBStandaloneState, RAMFB,
  12                          TYPE_RAMFB_DEVICE)
  13
  14 struct RAMFBStandaloneState {
  15     SysBusDevice parent_obj;
  16     QemuConsole *con;
  17     RAMFBState *state;
  18 };
  19
  20 static void display_update_wrapper(void *dev)
  21 {
  22     RAMFBStandaloneState *ramfb = RAMFB(dev);
  23
  24     if (0 /* native driver active */) {
  25         /* non-standalone device would run native display update here */;
  26     } else {
  27         ramfb_display_update(ramfb->con, ramfb->state);
  28     }
  29 }
  30
  31 static const GraphicHwOps wrapper_ops = {
  32     .gfx_update = display_update_wrapper,
  33 };
  34
  35 static void ramfb_realizefn(DeviceState *dev, Error **errp)
  36 {
  37     RAMFBStandaloneState *ramfb = RAMFB(dev);
  38
  39     ramfb->con = graphic_console_init(dev, 0, &wrapper_ops, dev);
  40     ramfb->state = ramfb_setup(errp);
  41 }
  42
  43 static void ramfb_class_initfn(ObjectClass *klass, void *data)
  44 {
  45     DeviceClass *dc = DEVICE_CLASS(klass);
  46
  47     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);
  48     dc->realize = ramfb_realizefn;
  49     dc->desc = "ram framebuffer standalone device";
  50     dc->user_creatable = true;
  51 }
  52
  53 static const TypeInfo ramfb_info = {
  54     .name          = TYPE_RAMFB_DEVICE,
  55     .parent        = TYPE_SYS_BUS_DEVICE,
  56     .instance_size = sizeof(RAMFBStandaloneState),
  57     .class_init    = ramfb_class_initfn,
  58 };
  59
  60 static void ramfb_register_types(void)
  61 {
  62     type_register_static(&ramfb_info);
  63 }
  64
  65 type_init(ramfb_register_types)