2 * QEMU IDE Emulation: PCI PIIX3/4 support.
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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
33 #include <hw/ide/pci.h>
35 static uint64_t bmdma_read(void *opaque, target_phys_addr_t addr, unsigned size)
37 BMDMAState *bm = opaque;
41 return ((uint64_t)1 << (size * 8)) - 1;
56 printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
61 static void bmdma_write(void *opaque, target_phys_addr_t addr,
62 uint64_t val, unsigned size)
64 BMDMAState *bm = opaque;
71 printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
75 return bmdma_cmd_writeb(bm, val);
77 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
82 static MemoryRegionOps piix_bmdma_ops = {
87 static void bmdma_setup_bar(PCIIDEState *d)
91 memory_region_init(&d->bmdma_bar, "piix-bmdma-container", 16);
92 for(i = 0;i < 2; i++) {
93 BMDMAState *bm = &d->bmdma[i];
95 memory_region_init_io(&bm->extra_io, &piix_bmdma_ops, bm,
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,
100 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
104 static void piix3_reset(void *opaque)
106 PCIIDEState *d = opaque;
107 uint8_t *pci_conf = d->dev.config;
110 for (i = 0; i < 2; i++) {
111 ide_bus_reset(&d->bus[i]);
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;
121 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
124 static void pci_piix_init_ports(PCIIDEState *d) {
125 static const struct {
135 for (i = 0; i < 2; i++) {
136 ide_bus_new(&d->bus[i], &d->dev.qdev, i);
137 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
138 port_info[i].iobase2);
139 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
141 bmdma_init(&d->bus[i], &d->bmdma[i], d);
142 d->bmdma[i].bus = &d->bus[i];
143 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
148 static int pci_piix_ide_initfn(PCIDevice *dev)
150 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
151 uint8_t *pci_conf = d->dev.config;
153 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
155 qemu_register_reset(piix3_reset, d);
158 pci_register_bar(&d->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
160 vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
162 pci_piix_init_ports(d);
167 static int pci_piix3_xen_ide_unplug(DeviceState *dev)
170 PCIIDEState *pci_ide;
174 pci_dev = DO_UPCAST(PCIDevice, qdev, dev);
175 pci_ide = DO_UPCAST(PCIIDEState, dev, pci_dev);
178 di = drive_get_by_index(IF_IDE, i);
179 if (di != NULL && !di->media_cd) {
180 DeviceState *ds = bdrv_get_attached_dev(di->bdrv);
182 bdrv_detach_dev(di->bdrv, ds);
184 bdrv_close(di->bdrv);
185 pci_ide->bus[di->bus].ifs[di->unit].bs = NULL;
189 qdev_reset_all(&(pci_ide->dev.qdev));
193 PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
197 dev = pci_create_simple(bus, devfn, "piix3-ide-xen");
198 pci_ide_create_devs(dev, hd_table);
202 static int pci_piix_ide_exitfn(PCIDevice *dev)
204 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
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);
213 memory_region_destroy(&d->bmdma_bar);
218 /* hd_table must contain 4 block drivers */
219 /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
220 PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
224 dev = pci_create_simple(bus, devfn, "piix3-ide");
225 pci_ide_create_devs(dev, hd_table);
229 /* hd_table must contain 4 block drivers */
230 /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
231 PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
235 dev = pci_create_simple(bus, devfn, "piix4-ide");
236 pci_ide_create_devs(dev, hd_table);
240 static PCIDeviceInfo piix3_ide_info = {
241 .qdev.name = "piix3-ide",
242 .qdev.size = sizeof(PCIIDEState),
245 .init = pci_piix_ide_initfn,
246 .exit = pci_piix_ide_exitfn,
247 .vendor_id = PCI_VENDOR_ID_INTEL,
248 .device_id = PCI_DEVICE_ID_INTEL_82371SB_1,
249 .class_id = PCI_CLASS_STORAGE_IDE,
252 static PCIDeviceInfo piix3_ide_xen_info = {
253 .qdev.name = "piix3-ide-xen",
254 .qdev.size = sizeof(PCIIDEState),
256 .qdev.unplug = pci_piix3_xen_ide_unplug,
257 .init = pci_piix_ide_initfn,
258 .vendor_id = PCI_VENDOR_ID_INTEL,
259 .device_id = PCI_DEVICE_ID_INTEL_82371SB_1,
260 .class_id = PCI_CLASS_STORAGE_IDE,
263 static PCIDeviceInfo piix4_ide_info = {
264 .qdev.name = "piix4-ide",
265 .qdev.size = sizeof(PCIIDEState),
268 .init = pci_piix_ide_initfn,
269 .exit = pci_piix_ide_exitfn,
270 .vendor_id = PCI_VENDOR_ID_INTEL,
271 .device_id = PCI_DEVICE_ID_INTEL_82371AB,
272 .class_id = PCI_CLASS_STORAGE_IDE,
275 static void piix_ide_register(void)
277 pci_qdev_register(&piix3_ide_info);
278 pci_qdev_register(&piix3_ide_xen_info);
279 pci_qdev_register(&piix4_ide_info);
281 device_init(piix_ide_register);