sga.c (2181B)
1/* 2 * QEMU dummy ISA device for loading sgabios option rom. 3 * 4 * Copyright (c) 2011 Glauber Costa, Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 * 24 * sgabios code originally available at code.google.com/p/sgabios 25 * 26 */ 27 28#include "qemu/osdep.h" 29#include "hw/isa/isa.h" 30#include "hw/loader.h" 31#include "qemu/module.h" 32#include "qom/object.h" 33 34#define SGABIOS_FILENAME "sgabios.bin" 35 36#define TYPE_SGA "sga" 37OBJECT_DECLARE_SIMPLE_TYPE(ISASGAState, SGA) 38 39struct ISASGAState { 40 ISADevice parent_obj; 41}; 42 43static void sga_realizefn(DeviceState *dev, Error **errp) 44{ 45 rom_add_vga(SGABIOS_FILENAME); 46} 47 48static void sga_class_initfn(ObjectClass *klass, void *data) 49{ 50 DeviceClass *dc = DEVICE_CLASS(klass); 51 52 set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories); 53 dc->realize = sga_realizefn; 54 dc->desc = "Serial Graphics Adapter"; 55} 56 57static const TypeInfo sga_info = { 58 .name = TYPE_SGA, 59 .parent = TYPE_ISA_DEVICE, 60 .instance_size = sizeof(ISASGAState), 61 .class_init = sga_class_initfn, 62}; 63 64static void sga_register_types(void) 65{ 66 type_register_static(&sga_info); 67} 68 69type_init(sga_register_types)