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pci: convert PCIUnregisterFunc to void
[mirror_qemu.git] / hw / ide / piix.c
CommitLineData
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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 */
25#include <hw/hw.h>
26#include <hw/pc.h>
27#include <hw/pci.h>
28#include <hw/isa.h>
29#include "block.h"
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30#include "sysemu.h"
31#include "dma.h"
32
33#include <hw/ide/pci.h>
34
a9deb8c6 35static uint64_t bmdma_read(void *opaque, target_phys_addr_t addr, unsigned size)
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36{
37 BMDMAState *bm = opaque;
38 uint32_t val;
39
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40 if (size != 1) {
41 return ((uint64_t)1 << (size * 8)) - 1;
42 }
43
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44 switch(addr & 3) {
45 case 0:
46 val = bm->cmd;
47 break;
48 case 2:
49 val = bm->status;
50 break;
51 default:
52 val = 0xff;
53 break;
54 }
55#ifdef DEBUG_IDE
cb67be85 56 printf("bmdma: readb 0x%02x : 0x%02x\n", (uint8_t)addr, val);
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57#endif
58 return val;
59}
60
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61static void bmdma_write(void *opaque, target_phys_addr_t addr,
62 uint64_t val, unsigned size)
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63{
64 BMDMAState *bm = opaque;
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65
66 if (size != 1) {
67 return;
68 }
69
4c3df0ec 70#ifdef DEBUG_IDE
cb67be85 71 printf("bmdma: writeb 0x%02x : 0x%02x\n", (uint8_t)addr, (uint8_t)val);
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72#endif
73 switch(addr & 3) {
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74 case 0:
75 return bmdma_cmd_writeb(bm, val);
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76 case 2:
77 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
78 break;
79 }
80}
81
a348f108 82static const MemoryRegionOps piix_bmdma_ops = {
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83 .read = bmdma_read,
84 .write = bmdma_write,
85};
86
87static void bmdma_setup_bar(PCIIDEState *d)
4c3df0ec 88{
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89 int i;
90
a9deb8c6 91 memory_region_init(&d->bmdma_bar, "piix-bmdma-container", 16);
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92 for(i = 0;i < 2; i++) {
93 BMDMAState *bm = &d->bmdma[i];
4c3df0ec 94
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95 memory_region_init_io(&bm->extra_io, &piix_bmdma_ops, bm,
96 "piix-bmdma", 4);
97 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
98 memory_region_init_io(&bm->addr_ioport, &bmdma_addr_ioport_ops, bm,
99 "bmdma", 4);
100 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
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101 }
102}
103
104static void piix3_reset(void *opaque)
105{
106 PCIIDEState *d = opaque;
107 uint8_t *pci_conf = d->dev.config;
108 int i;
109
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110 for (i = 0; i < 2; i++) {
111 ide_bus_reset(&d->bus[i]);
4a643563 112 }
4c3df0ec 113
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114 /* TODO: this is the default. do not override. */
115 pci_conf[PCI_COMMAND] = 0x00;
116 /* TODO: this is the default. do not override. */
117 pci_conf[PCI_COMMAND + 1] = 0x00;
118 /* TODO: use pci_set_word */
119 pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
120 pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
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121 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
122}
123
61d9d6b0 124static void pci_piix_init_ports(PCIIDEState *d) {
4a91d3b3 125 static const struct {
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126 int iobase;
127 int iobase2;
128 int isairq;
129 } port_info[] = {
130 {0x1f0, 0x3f6, 14},
131 {0x170, 0x376, 15},
132 };
4a91d3b3 133 int i;
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134
135 for (i = 0; i < 2; i++) {
136 ide_bus_new(&d->bus[i], &d->dev.qdev, i);
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137 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
138 port_info[i].iobase2);
48a18b3c 139 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
61d9d6b0 140
a9deb8c6 141 bmdma_init(&d->bus[i], &d->bmdma[i], d);
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142 d->bmdma[i].bus = &d->bus[i];
143 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
144 &d->bmdma[i].dma);
145 }
146}
147
25f8e2f5 148static int pci_piix_ide_initfn(PCIDevice *dev)
4c3df0ec 149{
25f8e2f5 150 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
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151 uint8_t *pci_conf = d->dev.config;
152
1e68f8c4 153 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
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154
155 qemu_register_reset(piix3_reset, d);
4c3df0ec 156
a9deb8c6 157 bmdma_setup_bar(d);
e824b2cc 158 pci_register_bar(&d->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
4c3df0ec 159
0be71e32 160 vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
4c3df0ec 161
61d9d6b0 162 pci_piix_init_ports(d);
4c3df0ec 163
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164 return 0;
165}
166
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167static int pci_piix3_xen_ide_unplug(DeviceState *dev)
168{
169 PCIDevice *pci_dev;
170 PCIIDEState *pci_ide;
171 DriveInfo *di;
172 int i = 0;
173
174 pci_dev = DO_UPCAST(PCIDevice, qdev, dev);
175 pci_ide = DO_UPCAST(PCIIDEState, dev, pci_dev);
176
177 for (; i < 3; i++) {
178 di = drive_get_by_index(IF_IDE, i);
f9e8fda4 179 if (di != NULL && !di->media_cd) {
fa879d62 180 DeviceState *ds = bdrv_get_attached_dev(di->bdrv);
679f4f8b 181 if (ds) {
fa879d62 182 bdrv_detach_dev(di->bdrv, ds);
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183 }
184 bdrv_close(di->bdrv);
185 pci_ide->bus[di->bus].ifs[di->unit].bs = NULL;
186 drive_put_ref(di);
187 }
188 }
189 qdev_reset_all(&(pci_ide->dev.qdev));
190 return 0;
191}
192
193PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
194{
195 PCIDevice *dev;
196
197 dev = pci_create_simple(bus, devfn, "piix3-ide-xen");
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198 pci_ide_create_devs(dev, hd_table);
199 return dev;
200}
201
f90c2bcd 202static void pci_piix_ide_exitfn(PCIDevice *dev)
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203{
204 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
205 unsigned i;
206
207 for (i = 0; i < 2; ++i) {
208 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
209 memory_region_destroy(&d->bmdma[i].extra_io);
210 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
211 memory_region_destroy(&d->bmdma[i].addr_ioport);
212 }
213 memory_region_destroy(&d->bmdma_bar);
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214}
215
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216/* hd_table must contain 4 block drivers */
217/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
57c88866 218PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
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219{
220 PCIDevice *dev;
221
556cd098 222 dev = pci_create_simple(bus, devfn, "piix3-ide");
4c3df0ec 223 pci_ide_create_devs(dev, hd_table);
57c88866 224 return dev;
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225}
226
227/* hd_table must contain 4 block drivers */
228/* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
57c88866 229PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
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230{
231 PCIDevice *dev;
232
556cd098 233 dev = pci_create_simple(bus, devfn, "piix4-ide");
4c3df0ec 234 pci_ide_create_devs(dev, hd_table);
57c88866 235 return dev;
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236}
237
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238static void piix3_ide_class_init(ObjectClass *klass, void *data)
239{
39bffca2 240 DeviceClass *dc = DEVICE_CLASS(klass);
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241 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
242
243 k->no_hotplug = 1;
244 k->init = pci_piix_ide_initfn;
245 k->exit = pci_piix_ide_exitfn;
246 k->vendor_id = PCI_VENDOR_ID_INTEL;
247 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
248 k->class_id = PCI_CLASS_STORAGE_IDE;
39bffca2 249 dc->no_user = 1;
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250}
251
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252static TypeInfo piix3_ide_info = {
253 .name = "piix3-ide",
254 .parent = TYPE_PCI_DEVICE,
255 .instance_size = sizeof(PCIIDEState),
256 .class_init = piix3_ide_class_init,
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257};
258
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259static void piix3_ide_xen_class_init(ObjectClass *klass, void *data)
260{
39bffca2 261 DeviceClass *dc = DEVICE_CLASS(klass);
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262 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
263
264 k->init = pci_piix_ide_initfn;
265 k->vendor_id = PCI_VENDOR_ID_INTEL;
266 k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
267 k->class_id = PCI_CLASS_STORAGE_IDE;
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268 dc->no_user = 1;
269 dc->unplug = pci_piix3_xen_ide_unplug;
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270}
271
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272static TypeInfo piix3_ide_xen_info = {
273 .name = "piix3-ide-xen",
274 .parent = TYPE_PCI_DEVICE,
275 .instance_size = sizeof(PCIIDEState),
276 .class_init = piix3_ide_xen_class_init,
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277};
278
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279static void piix4_ide_class_init(ObjectClass *klass, void *data)
280{
39bffca2 281 DeviceClass *dc = DEVICE_CLASS(klass);
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282 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
283
284 k->no_hotplug = 1;
285 k->init = pci_piix_ide_initfn;
286 k->exit = pci_piix_ide_exitfn;
287 k->vendor_id = PCI_VENDOR_ID_INTEL;
288 k->device_id = PCI_DEVICE_ID_INTEL_82371AB;
289 k->class_id = PCI_CLASS_STORAGE_IDE;
39bffca2 290 dc->no_user = 1;
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291}
292
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293static TypeInfo piix4_ide_info = {
294 .name = "piix4-ide",
295 .parent = TYPE_PCI_DEVICE,
296 .instance_size = sizeof(PCIIDEState),
297 .class_init = piix4_ide_class_init,
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298};
299
83f7d43a 300static void piix_ide_register_types(void)
4c3df0ec 301{
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302 type_register_static(&piix3_ide_info);
303 type_register_static(&piix3_ide_xen_info);
304 type_register_static(&piix4_ide_info);
4c3df0ec 305}
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306
307type_init(piix_ide_register_types)