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CommitLineData
4c3df0ec
JQ
1/*
2 * QEMU IDE Emulation: PCI PIIX3/4 support.
3 *
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
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 */
dfc65f1f 25
4c3df0ec 26#include <hw/hw.h>
0d09e41a 27#include <hw/i386/pc.h>
a2cb15b0 28#include <hw/pci/pci.h>
0d09e41a 29#include <hw/isa/isa.h>
9c17d615
PB
30#include "sysemu/blockdev.h"
31#include "sysemu/sysemu.h"
32#include "sysemu/dma.h"
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33
34#include <hw/ide/pci.h>
35
a8170e5e 36static uint64_t bmdma_read(void *opaque, hwaddr addr, unsigned size)
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37{
38 BMDMAState *bm = opaque;
39 uint32_t val;
40
a9deb8c6
AK
41 if (size != 1) {
42 return ((uint64_t)1 << (size * 8)) - 1;
43 }
44
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45 switch(addr & 3) {
46 case 0:
47 val = bm->cmd;
48 break;
49 case 2:
50 val = bm->status;
51 break;
52 default:
53 val = 0xff;
54 break;
55 }
56#ifdef DEBUG_IDE
cb67be85 57 printf("bmdma: readb 0x%02x : 0x%02x\n", (uint8_t)addr, val);
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58#endif
59 return val;
60}
61
a8170e5e 62static void bmdma_write(void *opaque, hwaddr addr,
a9deb8c6 63 uint64_t val, unsigned size)
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64{
65 BMDMAState *bm = opaque;
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AK
66
67 if (size != 1) {
68 return;
69 }
70
4c3df0ec 71#ifdef DEBUG_IDE
cb67be85 72 printf("bmdma: writeb 0x%02x : 0x%02x\n", (uint8_t)addr, (uint8_t)val);
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73#endif
74 switch(addr & 3) {
a9deb8c6 75 case 0:
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BS
76 bmdma_cmd_writeb(bm, val);
77 break;
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78 case 2:
79 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
80 break;
81 }
82}
83
a348f108 84static const MemoryRegionOps piix_bmdma_ops = {
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AK
85 .read = bmdma_read,
86 .write = bmdma_write,
87};
88
89static void bmdma_setup_bar(PCIIDEState *d)
4c3df0ec 90{
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91 int i;
92
1437c94b 93 memory_region_init(&d->bmdma_bar, OBJECT(d), "piix-bmdma-container", 16);
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94 for(i = 0;i < 2; i++) {
95 BMDMAState *bm = &d->bmdma[i];
4c3df0ec 96
1437c94b 97 memory_region_init_io(&bm->extra_io, OBJECT(d), &piix_bmdma_ops, bm,
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98 "piix-bmdma", 4);
99 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
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100 memory_region_init_io(&bm->addr_ioport, OBJECT(d),
101 &bmdma_addr_ioport_ops, bm, "bmdma", 4);
a9deb8c6 102 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
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103 }
104}
105
106static void piix3_reset(void *opaque)
107{
108 PCIIDEState *d = opaque;
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AF
109 PCIDevice *pd = PCI_DEVICE(d);
110 uint8_t *pci_conf = pd->config;
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111 int i;
112
4a643563
BS
113 for (i = 0; i < 2; i++) {
114 ide_bus_reset(&d->bus[i]);
4a643563 115 }
4c3df0ec 116
1e68f8c4
MT
117 /* TODO: this is the default. do not override. */
118 pci_conf[PCI_COMMAND] = 0x00;
119 /* TODO: this is the default. do not override. */
120 pci_conf[PCI_COMMAND + 1] = 0x00;
121 /* TODO: use pci_set_word */
122 pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
123 pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
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124 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
125}
126
61d9d6b0 127static void pci_piix_init_ports(PCIIDEState *d) {
4a91d3b3 128 static const struct {
61d9d6b0
SH
129 int iobase;
130 int iobase2;
131 int isairq;
132 } port_info[] = {
133 {0x1f0, 0x3f6, 14},
134 {0x170, 0x376, 15},
135 };
4a91d3b3 136 int i;
61d9d6b0
SH
137
138 for (i = 0; i < 2; i++) {
c6baf942 139 ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2);
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140 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
141 port_info[i].iobase2);
48a18b3c 142 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
61d9d6b0 143
a9deb8c6 144 bmdma_init(&d->bus[i], &d->bmdma[i], d);
61d9d6b0
SH
145 d->bmdma[i].bus = &d->bus[i];
146 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
147 &d->bmdma[i].dma);
148 }
149}
150
25f8e2f5 151static int pci_piix_ide_initfn(PCIDevice *dev)
4c3df0ec 152{
f6c11d56
AF
153 PCIIDEState *d = PCI_IDE(dev);
154 uint8_t *pci_conf = dev->config;
4c3df0ec 155
1e68f8c4 156 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
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157
158 qemu_register_reset(piix3_reset, d);
4c3df0ec 159
a9deb8c6 160 bmdma_setup_bar(d);
f6c11d56 161 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
4c3df0ec 162
02a9594b 163 vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d);
4c3df0ec 164
61d9d6b0 165 pci_piix_init_ports(d);
4c3df0ec 166
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167 return 0;
168}
169
679f4f8b
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170static int pci_piix3_xen_ide_unplug(DeviceState *dev)
171{
679f4f8b
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172 PCIIDEState *pci_ide;
173 DriveInfo *di;
174 int i = 0;
175
f6c11d56 176 pci_ide = PCI_IDE(dev);
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SS
177
178 for (; i < 3; i++) {
179 di = drive_get_by_index(IF_IDE, i);
f9e8fda4 180 if (di != NULL && !di->media_cd) {
fa879d62 181 DeviceState *ds = bdrv_get_attached_dev(di->bdrv);
679f4f8b 182 if (ds) {
fa879d62 183 bdrv_detach_dev(di->bdrv, ds);
679f4f8b
SS
184 }
185 bdrv_close(di->bdrv);
186 pci_ide->bus[di->bus].ifs[di->unit].bs = NULL;
187 drive_put_ref(di);
188 }
189 }
02a9594b 190 qdev_reset_all(DEVICE(dev));
679f4f8b
SS
191 return 0;
192}
193
194PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
195{
196 PCIDevice *dev;
197
198 dev = pci_create_simple(bus, devfn, "piix3-ide-xen");
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199 pci_ide_create_devs(dev, hd_table);
200 return dev;
201}
202
f90c2bcd 203static void pci_piix_ide_exitfn(PCIDevice *dev)
a9deb8c6 204{
f6c11d56 205 PCIIDEState *d = PCI_IDE(dev);
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206 unsigned i;
207
208 for (i = 0; i < 2; ++i) {
209 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
210 memory_region_destroy(&d->bmdma[i].extra_io);
211 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
212 memory_region_destroy(&d->bmdma[i].addr_ioport);
213 }
214 memory_region_destroy(&d->bmdma_bar);
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215}
216
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217/* hd_table must contain 4 block drivers */
218/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
57c88866 219PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
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220{
221 PCIDevice *dev;
222
556cd098 223 dev = pci_create_simple(bus, devfn, "piix3-ide");
4c3df0ec 224 pci_ide_create_devs(dev, hd_table);
57c88866 225 return dev;
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226}
227
228/* hd_table must contain 4 block drivers */
229/* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
57c88866 230PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
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231{
232 PCIDevice *dev;
233
556cd098 234 dev = pci_create_simple(bus, devfn, "piix4-ide");
4c3df0ec 235 pci_ide_create_devs(dev, hd_table);
57c88866 236 return dev;
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237}
238
40021f08
AL
239static void piix3_ide_class_init(ObjectClass *klass, void *data)
240{
39bffca2 241 DeviceClass *dc = DEVICE_CLASS(klass);
40021f08
AL
242 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
243
244 k->no_hotplug = 1;
245 k->init = pci_piix_ide_initfn;
246 k->exit = pci_piix_ide_exitfn;
247 k->vendor_id = PCI_VENDOR_ID_INTEL;
248 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
249 k->class_id = PCI_CLASS_STORAGE_IDE;
125ee0ed 250 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
39bffca2 251 dc->no_user = 1;
40021f08
AL
252}
253
8c43a6f0 254static const TypeInfo piix3_ide_info = {
39bffca2 255 .name = "piix3-ide",
f6c11d56 256 .parent = TYPE_PCI_IDE,
39bffca2 257 .class_init = piix3_ide_class_init,
e855761c
AL
258};
259
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260static void piix3_ide_xen_class_init(ObjectClass *klass, void *data)
261{
39bffca2 262 DeviceClass *dc = DEVICE_CLASS(klass);
40021f08
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263 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
264
265 k->init = pci_piix_ide_initfn;
266 k->vendor_id = PCI_VENDOR_ID_INTEL;
267 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
268 k->class_id = PCI_CLASS_STORAGE_IDE;
125ee0ed 269 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
39bffca2
AL
270 dc->no_user = 1;
271 dc->unplug = pci_piix3_xen_ide_unplug;
40021f08
AL
272}
273
8c43a6f0 274static const TypeInfo piix3_ide_xen_info = {
39bffca2 275 .name = "piix3-ide-xen",
f6c11d56 276 .parent = TYPE_PCI_IDE,
39bffca2 277 .class_init = piix3_ide_xen_class_init,
e855761c
AL
278};
279
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AL
280static void piix4_ide_class_init(ObjectClass *klass, void *data)
281{
39bffca2 282 DeviceClass *dc = DEVICE_CLASS(klass);
40021f08
AL
283 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
284
285 k->no_hotplug = 1;
286 k->init = pci_piix_ide_initfn;
287 k->exit = pci_piix_ide_exitfn;
288 k->vendor_id = PCI_VENDOR_ID_INTEL;
289 k->device_id = PCI_DEVICE_ID_INTEL_82371AB;
290 k->class_id = PCI_CLASS_STORAGE_IDE;
125ee0ed 291 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
39bffca2 292 dc->no_user = 1;
40021f08
AL
293}
294
8c43a6f0 295static const TypeInfo piix4_ide_info = {
39bffca2 296 .name = "piix4-ide",
f6c11d56 297 .parent = TYPE_PCI_IDE,
39bffca2 298 .class_init = piix4_ide_class_init,
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299};
300
83f7d43a 301static void piix_ide_register_types(void)
4c3df0ec 302{
39bffca2
AL
303 type_register_static(&piix3_ide_info);
304 type_register_static(&piix3_ide_xen_info);
305 type_register_static(&piix4_ide_info);
4c3df0ec 306}
83f7d43a
AF
307
308type_init(piix_ide_register_types)