1 /* 2 * QEMU Macintosh Nubus 3 * 4 * Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu> 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 * 9 */ 10 11 #include "qemu/osdep.h" 12 #include "qemu/datadir.h" 13 #include "hw/irq.h" 14 #include "hw/loader.h" 15 #include "hw/nubus/nubus.h" 16 #include "qapi/error.h" 17 #include "qemu/error-report.h" 18 19 20 void nubus_set_irq(NubusDevice *nd, int level) 21 { 22 NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(DEVICE(nd))); 23 24 qemu_set_irq(nubus->irqs[nd->slot], level); 25 } 26 27 static void nubus_device_realize(DeviceState *dev, Error **errp) 28 { 29 NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(dev)); 30 NubusDevice *nd = NUBUS_DEVICE(dev); 31 char *name, *path; 32 hwaddr slot_offset; 33 int64_t size; 34 int ret; 35 36 /* Super */ 37 slot_offset = nd->slot * NUBUS_SUPER_SLOT_SIZE; 38 39 name = g_strdup_printf("nubus-super-slot-%x", nd->slot); 40 memory_region_init(&nd->super_slot_mem, OBJECT(dev), name, 41 NUBUS_SUPER_SLOT_SIZE); 42 memory_region_add_subregion(&nubus->super_slot_io, slot_offset, 43 &nd->super_slot_mem); 44 g_free(name); 45 46 /* Normal */ 47 slot_offset = nd->slot * NUBUS_SLOT_SIZE; 48 49 name = g_strdup_printf("nubus-slot-%x", nd->slot); 50 memory_region_init(&nd->slot_mem, OBJECT(dev), name, NUBUS_SLOT_SIZE); 51 memory_region_add_subregion(&nubus->slot_io, slot_offset, 52 &nd->slot_mem); 53 g_free(name); 54 55 /* Declaration ROM */ 56 if (nd->romfile != NULL) { 57 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, nd->romfile); 58 if (path == NULL) { 59 path = g_strdup(nd->romfile); 60 } 61 62 size = get_image_size(path); 63 if (size < 0) { 64 error_setg(errp, "failed to find romfile \"%s\"", nd->romfile); 65 g_free(path); 66 return; 67 } else if (size == 0) { 68 error_setg(errp, "romfile \"%s\" is empty", nd->romfile); 69 g_free(path); 70 return; 71 } else if (size > NUBUS_DECL_ROM_MAX_SIZE) { 72 error_setg(errp, "romfile \"%s\" too large (maximum size 128K)", 73 nd->romfile); 74 g_free(path); 75 return; 76 } 77 78 name = g_strdup_printf("nubus-slot-%x-declaration-rom", nd->slot); 79 memory_region_init_rom(&nd->decl_rom, OBJECT(dev), name, size, 80 &error_abort); 81 ret = load_image_mr(path, &nd->decl_rom); 82 g_free(path); 83 if (ret < 0) { 84 error_setg(errp, "could not load romfile \"%s\"", nd->romfile); 85 return; 86 } 87 memory_region_add_subregion(&nd->slot_mem, NUBUS_SLOT_SIZE - size, 88 &nd->decl_rom); 89 } 90 } 91 92 static Property nubus_device_properties[] = { 93 DEFINE_PROP_INT32("slot", NubusDevice, slot, -1), 94 DEFINE_PROP_STRING("romfile", NubusDevice, romfile), 95 DEFINE_PROP_END_OF_LIST() 96 }; 97 98 static void nubus_device_class_init(ObjectClass *oc, void *data) 99 { 100 DeviceClass *dc = DEVICE_CLASS(oc); 101 102 dc->realize = nubus_device_realize; 103 dc->bus_type = TYPE_NUBUS_BUS; 104 device_class_set_props(dc, nubus_device_properties); 105 } 106 107 static const TypeInfo nubus_device_type_info = { 108 .name = TYPE_NUBUS_DEVICE, 109 .parent = TYPE_DEVICE, 110 .abstract = true, 111 .instance_size = sizeof(NubusDevice), 112 .class_init = nubus_device_class_init, 113 }; 114 115 static void nubus_register_types(void) 116 { 117 type_register_static(&nubus_device_type_info); 118 } 119 120 type_init(nubus_register_types) 121