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1 /*
2 * PowerMac MacIO device emulation
3 *
4 * Copyright (c) 2005-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
24 */
25 #include "hw.h"
26 #include "ppc_mac.h"
27 #include "pci.h"
28 #include "escc.h"
29
30 typedef struct macio_state_t macio_state_t;
31 struct macio_state_t {
32 int is_oldworld;
33 MemoryRegion bar;
34 MemoryRegion *pic_mem;
35 MemoryRegion *dbdma_mem;
36 MemoryRegion *cuda_mem;
37 MemoryRegion *escc_mem;
38 void *nvram;
39 int nb_ide;
40 MemoryRegion *ide_mem[4];
41 };
42
43 static void macio_bar_setup(macio_state_t *macio_state)
44 {
45 int i;
46 MemoryRegion *bar = &macio_state->bar;
47
48 memory_region_init(bar, "macio", 0x80000);
49 if (macio_state->pic_mem) {
50 if (macio_state->is_oldworld) {
51 /* Heathrow PIC */
52 memory_region_add_subregion(bar, 0x00000, macio_state->pic_mem);
53 } else {
54 /* OpenPIC */
55 memory_region_add_subregion(bar, 0x40000, macio_state->pic_mem);
56 }
57 }
58 if (macio_state->dbdma_mem) {
59 memory_region_add_subregion(bar, 0x08000, macio_state->dbdma_mem);
60 }
61 if (macio_state->escc_mem) {
62 memory_region_add_subregion(bar, 0x13000, macio_state->escc_mem);
63 }
64 if (macio_state->cuda_mem) {
65 memory_region_add_subregion(bar, 0x16000, macio_state->cuda_mem);
66 }
67 for (i = 0; i < macio_state->nb_ide; i++) {
68 if (macio_state->ide_mem[i]) {
69 memory_region_add_subregion(bar, 0x1f000 + (i * 0x1000),
70 macio_state->ide_mem[i]);
71 }
72 }
73 if (macio_state->nvram != NULL)
74 macio_nvram_setup_bar(macio_state->nvram, bar, 0x60000);
75 }
76
77 void macio_init (PCIBus *bus, int device_id, int is_oldworld,
78 MemoryRegion *pic_mem, MemoryRegion *dbdma_mem,
79 MemoryRegion *cuda_mem, void *nvram,
80 int nb_ide, MemoryRegion **ide_mem,
81 MemoryRegion *escc_mem)
82 {
83 PCIDevice *d;
84 macio_state_t *macio_state;
85 int i;
86
87 d = pci_register_device(bus, "macio",
88 sizeof(PCIDevice) + sizeof(macio_state_t),
89 -1, NULL, NULL);
90 macio_state = (macio_state_t *)(d + 1);
91 macio_state->is_oldworld = is_oldworld;
92 macio_state->pic_mem = pic_mem;
93 macio_state->dbdma_mem = dbdma_mem;
94 macio_state->cuda_mem = cuda_mem;
95 macio_state->escc_mem = escc_mem;
96 macio_state->nvram = nvram;
97 if (nb_ide > 4)
98 nb_ide = 4;
99 macio_state->nb_ide = nb_ide;
100 for (i = 0; i < nb_ide; i++)
101 macio_state->ide_mem[i] = ide_mem[i];
102 for (; i < 4; i++)
103 macio_state->ide_mem[i] = NULL;
104 /* Note: this code is strongly inspirated from the corresponding code
105 in PearPC */
106
107 pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
108 pci_config_set_device_id(d->config, device_id);
109 pci_config_set_class(d->config, PCI_CLASS_OTHERS << 8);
110
111 d->config[0x3d] = 0x01; // interrupt on pin 1
112
113 macio_bar_setup(macio_state);
114 pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &macio_state->bar);
115 }