xref: /qemu/hw/nubus/nubus-device.c (revision 12a51d983de118cf2258fe238b22fabedb4a5ffc)
1fa2ba3b8SLaurent Vivier /*
2fa2ba3b8SLaurent Vivier  * QEMU Macintosh Nubus
3fa2ba3b8SLaurent Vivier  *
4fa2ba3b8SLaurent Vivier  * Copyright (c) 2013-2018 Laurent Vivier <laurent@vivier.eu>
5fa2ba3b8SLaurent Vivier  *
6fa2ba3b8SLaurent Vivier  * This work is licensed under the terms of the GNU GPL, version 2 or later.
7fa2ba3b8SLaurent Vivier  * See the COPYING file in the top-level directory.
8fa2ba3b8SLaurent Vivier  *
9fa2ba3b8SLaurent Vivier  */
10fa2ba3b8SLaurent Vivier 
11fa2ba3b8SLaurent Vivier #include "qemu/osdep.h"
123616f424SMark Cave-Ayland #include "qemu/datadir.h"
13d2cf28a0SMark Cave-Ayland #include "hw/irq.h"
143616f424SMark Cave-Ayland #include "hw/loader.h"
15fa2ba3b8SLaurent Vivier #include "hw/nubus/nubus.h"
16fa2ba3b8SLaurent Vivier #include "qapi/error.h"
173616f424SMark Cave-Ayland #include "qemu/error-report.h"
18fa2ba3b8SLaurent Vivier 
19fa2ba3b8SLaurent Vivier 
20d2cf28a0SMark Cave-Ayland void nubus_set_irq(NubusDevice *nd, int level)
21d2cf28a0SMark Cave-Ayland {
22d2cf28a0SMark Cave-Ayland     NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(DEVICE(nd)));
23d2cf28a0SMark Cave-Ayland 
24d2cf28a0SMark Cave-Ayland     qemu_set_irq(nubus->irqs[nd->slot], level);
25d2cf28a0SMark Cave-Ayland }
26d2cf28a0SMark Cave-Ayland 
27fa2ba3b8SLaurent Vivier static void nubus_device_realize(DeviceState *dev, Error **errp)
28fa2ba3b8SLaurent Vivier {
298e5c952bSPhilippe Mathieu-Daudé     NubusBus *nubus = NUBUS_BUS(qdev_get_parent_bus(dev));
30fa2ba3b8SLaurent Vivier     NubusDevice *nd = NUBUS_DEVICE(dev);
313616f424SMark Cave-Ayland     char *name, *path;
32fa2ba3b8SLaurent Vivier     hwaddr slot_offset;
333616f424SMark Cave-Ayland     int64_t size;
343616f424SMark Cave-Ayland     int ret;
35fa2ba3b8SLaurent Vivier 
36fa2ba3b8SLaurent Vivier     /* Super */
3790be1deaSMark Cave-Ayland     slot_offset = nd->slot * NUBUS_SUPER_SLOT_SIZE;
38fa2ba3b8SLaurent Vivier 
3990be1deaSMark Cave-Ayland     name = g_strdup_printf("nubus-super-slot-%x", nd->slot);
4090be1deaSMark Cave-Ayland     memory_region_init(&nd->super_slot_mem, OBJECT(dev), name,
41fa2ba3b8SLaurent Vivier                        NUBUS_SUPER_SLOT_SIZE);
42fa2ba3b8SLaurent Vivier     memory_region_add_subregion(&nubus->super_slot_io, slot_offset,
4390be1deaSMark Cave-Ayland                                 &nd->super_slot_mem);
4490be1deaSMark Cave-Ayland     g_free(name);
4590be1deaSMark Cave-Ayland 
46fa2ba3b8SLaurent Vivier     /* Normal */
47e2c49c05SMark Cave-Ayland     slot_offset = nd->slot * NUBUS_SLOT_SIZE;
48fa2ba3b8SLaurent Vivier 
4990be1deaSMark Cave-Ayland     name = g_strdup_printf("nubus-slot-%x", nd->slot);
50fa2ba3b8SLaurent Vivier     memory_region_init(&nd->slot_mem, OBJECT(dev), name, NUBUS_SLOT_SIZE);
51fa2ba3b8SLaurent Vivier     memory_region_add_subregion(&nubus->slot_io, slot_offset,
52fa2ba3b8SLaurent Vivier                                 &nd->slot_mem);
53fa2ba3b8SLaurent Vivier     g_free(name);
543616f424SMark Cave-Ayland 
553616f424SMark Cave-Ayland     /* Declaration ROM */
563616f424SMark Cave-Ayland     if (nd->romfile != NULL) {
573616f424SMark Cave-Ayland         path = qemu_find_file(QEMU_FILE_TYPE_BIOS, nd->romfile);
583616f424SMark Cave-Ayland         if (path == NULL) {
593616f424SMark Cave-Ayland             path = g_strdup(nd->romfile);
603616f424SMark Cave-Ayland         }
613616f424SMark Cave-Ayland 
623616f424SMark Cave-Ayland         size = get_image_size(path);
633616f424SMark Cave-Ayland         if (size < 0) {
643616f424SMark Cave-Ayland             error_setg(errp, "failed to find romfile \"%s\"", nd->romfile);
653616f424SMark Cave-Ayland             g_free(path);
663616f424SMark Cave-Ayland             return;
673616f424SMark Cave-Ayland         } else if (size == 0) {
683616f424SMark Cave-Ayland             error_setg(errp, "romfile \"%s\" is empty", nd->romfile);
693616f424SMark Cave-Ayland             g_free(path);
703616f424SMark Cave-Ayland             return;
713616f424SMark Cave-Ayland         } else if (size > NUBUS_DECL_ROM_MAX_SIZE) {
723616f424SMark Cave-Ayland             error_setg(errp, "romfile \"%s\" too large (maximum size 128K)",
733616f424SMark Cave-Ayland                        nd->romfile);
743616f424SMark Cave-Ayland             g_free(path);
753616f424SMark Cave-Ayland             return;
763616f424SMark Cave-Ayland         }
773616f424SMark Cave-Ayland 
783616f424SMark Cave-Ayland         name = g_strdup_printf("nubus-slot-%x-declaration-rom", nd->slot);
793616f424SMark Cave-Ayland         memory_region_init_rom(&nd->decl_rom, OBJECT(dev), name, size,
803616f424SMark Cave-Ayland                                &error_abort);
813616f424SMark Cave-Ayland         ret = load_image_mr(path, &nd->decl_rom);
823616f424SMark Cave-Ayland         g_free(path);
83*12a51d98SMauro Matteo Cascella         g_free(name);
843616f424SMark Cave-Ayland         if (ret < 0) {
853616f424SMark Cave-Ayland             error_setg(errp, "could not load romfile \"%s\"", nd->romfile);
863616f424SMark Cave-Ayland             return;
873616f424SMark Cave-Ayland         }
883616f424SMark Cave-Ayland         memory_region_add_subregion(&nd->slot_mem, NUBUS_SLOT_SIZE - size,
893616f424SMark Cave-Ayland                                     &nd->decl_rom);
903616f424SMark Cave-Ayland     }
91fa2ba3b8SLaurent Vivier }
92fa2ba3b8SLaurent Vivier 
9303deab99SMark Cave-Ayland static Property nubus_device_properties[] = {
9403deab99SMark Cave-Ayland     DEFINE_PROP_INT32("slot", NubusDevice, slot, -1),
953616f424SMark Cave-Ayland     DEFINE_PROP_STRING("romfile", NubusDevice, romfile),
9603deab99SMark Cave-Ayland     DEFINE_PROP_END_OF_LIST()
9703deab99SMark Cave-Ayland };
9803deab99SMark Cave-Ayland 
99fa2ba3b8SLaurent Vivier static void nubus_device_class_init(ObjectClass *oc, void *data)
100fa2ba3b8SLaurent Vivier {
101fa2ba3b8SLaurent Vivier     DeviceClass *dc = DEVICE_CLASS(oc);
102fa2ba3b8SLaurent Vivier 
103fa2ba3b8SLaurent Vivier     dc->realize = nubus_device_realize;
104fa2ba3b8SLaurent Vivier     dc->bus_type = TYPE_NUBUS_BUS;
10503deab99SMark Cave-Ayland     device_class_set_props(dc, nubus_device_properties);
106fa2ba3b8SLaurent Vivier }
107fa2ba3b8SLaurent Vivier 
108fa2ba3b8SLaurent Vivier static const TypeInfo nubus_device_type_info = {
109fa2ba3b8SLaurent Vivier     .name = TYPE_NUBUS_DEVICE,
110fa2ba3b8SLaurent Vivier     .parent = TYPE_DEVICE,
111fa2ba3b8SLaurent Vivier     .abstract = true,
112fa2ba3b8SLaurent Vivier     .instance_size = sizeof(NubusDevice),
113fa2ba3b8SLaurent Vivier     .class_init = nubus_device_class_init,
114fa2ba3b8SLaurent Vivier };
115fa2ba3b8SLaurent Vivier 
116fa2ba3b8SLaurent Vivier static void nubus_register_types(void)
117fa2ba3b8SLaurent Vivier {
118fa2ba3b8SLaurent Vivier     type_register_static(&nubus_device_type_info);
119fa2ba3b8SLaurent Vivier }
120fa2ba3b8SLaurent Vivier 
121fa2ba3b8SLaurent Vivier type_init(nubus_register_types)
122