141 lines
4.4 KiB
C
141 lines
4.4 KiB
C
/*
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* PowerMac MacIO device emulation
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*
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* Copyright (c) 2005-2007 Fabrice Bellard
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "hw.h"
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#include "ppc_mac.h"
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#include "pci.h"
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#include "escc.h"
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typedef struct MacIOState
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{
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PCIDevice parent;
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int is_oldworld;
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MemoryRegion bar;
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MemoryRegion *pic_mem;
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MemoryRegion *dbdma_mem;
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MemoryRegion *cuda_mem;
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MemoryRegion *escc_mem;
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void *nvram;
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int nb_ide;
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MemoryRegion *ide_mem[4];
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} MacIOState;
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static void macio_bar_setup(MacIOState *macio_state)
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{
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int i;
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MemoryRegion *bar = &macio_state->bar;
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memory_region_init(bar, "macio", 0x80000);
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if (macio_state->pic_mem) {
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if (macio_state->is_oldworld) {
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/* Heathrow PIC */
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memory_region_add_subregion(bar, 0x00000, macio_state->pic_mem);
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} else {
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/* OpenPIC */
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memory_region_add_subregion(bar, 0x40000, macio_state->pic_mem);
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}
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}
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if (macio_state->dbdma_mem) {
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memory_region_add_subregion(bar, 0x08000, macio_state->dbdma_mem);
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}
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if (macio_state->escc_mem) {
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memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem);
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}
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if (macio_state->cuda_mem) {
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memory_region_add_subregion(bar, 0x16000, macio_state->cuda_mem);
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}
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for (i = 0; i < macio_state->nb_ide; i++) {
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if (macio_state->ide_mem[i]) {
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memory_region_add_subregion(bar, 0x1f000 + (i * 0x1000),
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macio_state->ide_mem[i]);
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}
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}
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if (macio_state->nvram != NULL)
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macio_nvram_setup_bar(macio_state->nvram, bar, 0x60000);
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}
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static int macio_initfn(PCIDevice *d)
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{
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d->config[0x3d] = 0x01; // interrupt on pin 1
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return 0;
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}
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static void macio_class_init(ObjectClass *klass, void *data)
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{
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PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
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k->init = macio_initfn;
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k->vendor_id = PCI_VENDOR_ID_APPLE;
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k->class_id = PCI_CLASS_OTHERS << 8;
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}
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static TypeInfo macio_info = {
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.name = "macio",
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.parent = TYPE_PCI_DEVICE,
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.instance_size = sizeof(MacIOState),
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.class_init = macio_class_init,
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};
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static void macio_register_types(void)
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{
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type_register_static(&macio_info);
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}
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type_init(macio_register_types)
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void macio_init (PCIBus *bus, int device_id, int is_oldworld,
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MemoryRegion *pic_mem, MemoryRegion *dbdma_mem,
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MemoryRegion *cuda_mem, void *nvram,
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int nb_ide, MemoryRegion **ide_mem,
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MemoryRegion *escc_mem)
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{
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PCIDevice *d;
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MacIOState *macio_state;
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int i;
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d = pci_create_simple(bus, -1, "macio");
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macio_state = DO_UPCAST(MacIOState, parent, d);
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macio_state->is_oldworld = is_oldworld;
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macio_state->pic_mem = pic_mem;
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macio_state->dbdma_mem = dbdma_mem;
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macio_state->cuda_mem = cuda_mem;
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macio_state->escc_mem = escc_mem;
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macio_state->nvram = nvram;
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if (nb_ide > 4)
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nb_ide = 4;
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macio_state->nb_ide = nb_ide;
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for (i = 0; i < nb_ide; i++)
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macio_state->ide_mem[i] = ide_mem[i];
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for (; i < 4; i++)
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macio_state->ide_mem[i] = NULL;
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/* Note: this code is strongly inspirated from the corresponding code
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in PearPC */
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pci_config_set_device_id(d->config, device_id);
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macio_bar_setup(macio_state);
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pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &macio_state->bar);
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}
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