mirror of https://gitee.com/openkylin/qemu.git
117 lines
4.3 KiB
C
117 lines
4.3 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 "vl.h"
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#include "ppc_mac.h"
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typedef struct macio_state_t macio_state_t;
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struct macio_state_t {
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int is_oldworld;
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int pic_mem_index;
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int dbdma_mem_index;
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int cuda_mem_index;
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int nvram_mem_index;
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int nb_ide;
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int ide_mem_index[4];
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};
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static void macio_map (PCIDevice *pci_dev, int region_num,
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uint32_t addr, uint32_t size, int type)
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{
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macio_state_t *macio_state;
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int i;
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macio_state = (macio_state_t *)(pci_dev + 1);
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if (macio_state->pic_mem_index >= 0) {
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if (macio_state->is_oldworld) {
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/* Heathrow PIC */
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cpu_register_physical_memory(addr + 0x00000, 0x1000,
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macio_state->pic_mem_index);
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} else {
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/* OpenPIC */
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cpu_register_physical_memory(addr + 0x40000, 0x40000,
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macio_state->pic_mem_index);
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}
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}
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if (macio_state->dbdma_mem_index >= 0) {
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cpu_register_physical_memory(addr + 0x08000, 0x1000,
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macio_state->dbdma_mem_index);
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}
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if (macio_state->cuda_mem_index >= 0) {
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cpu_register_physical_memory(addr + 0x16000, 0x2000,
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macio_state->cuda_mem_index);
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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_index[i] >= 0) {
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cpu_register_physical_memory(addr + 0x1f000 + (i * 0x1000), 0x1000,
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macio_state->ide_mem_index[i]);
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}
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}
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if (macio_state->nvram_mem_index >= 0) {
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cpu_register_physical_memory(addr + 0x60000, 0x20000,
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macio_state->nvram_mem_index);
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}
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}
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void macio_init (PCIBus *bus, int device_id, int is_oldworld, int pic_mem_index,
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int dbdma_mem_index, int cuda_mem_index, int nvram_mem_index,
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int nb_ide, int *ide_mem_index)
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{
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PCIDevice *d;
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macio_state_t *macio_state;
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int i;
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d = pci_register_device(bus, "macio",
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sizeof(PCIDevice) + sizeof(macio_state_t),
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-1, NULL, NULL);
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macio_state = (macio_state_t *)(d + 1);
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macio_state->is_oldworld = is_oldworld;
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macio_state->pic_mem_index = pic_mem_index;
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macio_state->dbdma_mem_index = dbdma_mem_index;
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macio_state->cuda_mem_index = cuda_mem_index;
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macio_state->nvram_mem_index = nvram_mem_index;
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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_index[i] = ide_mem_index[i];
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for (; i < 4; i++)
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macio_state->ide_mem_index[i] = -1;
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/* Note: this code is strongly inspirated from the corresponding code
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in PearPC */
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d->config[0x00] = 0x6b; // vendor_id
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d->config[0x01] = 0x10;
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d->config[0x02] = device_id;
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d->config[0x03] = device_id >> 8;
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d->config[0x0a] = 0x00; // class_sub = pci2pci
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d->config[0x0b] = 0xff; // class_base = bridge
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d->config[0x0e] = 0x00; // header_type
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d->config[0x3d] = 0x01; // interrupt on pin 1
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pci_register_io_region(d, 0, 0x80000,
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PCI_ADDRESS_SPACE_MEM, macio_map);
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}
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