hw/display/ramfb-standalone.c

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