qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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ramfb-standalone.c (1677B)

      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)