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
30 #include "block_int.h"
34 #include <hw/ide/pci.h>
36 static uint32_t bmdma_readb(void *opaque, uint32_t addr)
38 BMDMAState *bm = opaque;
53 printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
58 static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val)
60 BMDMAState *bm = opaque;
62 printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
66 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
71 static void bmdma_map(PCIDevice *pci_dev, int region_num,
72 pcibus_t addr, pcibus_t size, int type)
74 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, pci_dev);
77 for(i = 0;i < 2; i++) {
78 BMDMAState *bm = &d->bmdma[i];
80 register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm);
82 register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm);
83 register_ioport_read(addr, 4, 1, bmdma_readb, bm);
85 iorange_init(&bm->addr_ioport, &bmdma_addr_ioport_ops, addr + 4, 4);
86 ioport_register(&bm->addr_ioport);
91 static void piix3_reset(void *opaque)
93 PCIIDEState *d = opaque;
94 uint8_t *pci_conf = d->dev.config;
97 for (i = 0; i < 2; i++) {
98 ide_bus_reset(&d->bus[i]);
101 /* TODO: this is the default. do not override. */
102 pci_conf[PCI_COMMAND] = 0x00;
103 /* TODO: this is the default. do not override. */
104 pci_conf[PCI_COMMAND + 1] = 0x00;
105 /* TODO: use pci_set_word */
106 pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK;
107 pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
108 pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
111 static void pci_piix_init_ports(PCIIDEState *d) {
122 for (i = 0; i < 2; i++) {
123 ide_bus_new(&d->bus[i], &d->dev.qdev, i);
124 ide_init_ioport(&d->bus[i], port_info[i].iobase, port_info[i].iobase2);
125 ide_init2(&d->bus[i], isa_get_irq(port_info[i].isairq));
127 bmdma_init(&d->bus[i], &d->bmdma[i]);
128 d->bmdma[i].bus = &d->bus[i];
129 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
134 static int pci_piix_ide_initfn(PCIDevice *dev)
136 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
137 uint8_t *pci_conf = d->dev.config;
139 pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
141 qemu_register_reset(piix3_reset, d);
143 pci_register_bar(&d->dev, 4, 0x10, PCI_BASE_ADDRESS_SPACE_IO, bmdma_map);
145 vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d);
147 pci_piix_init_ports(d);
152 /* hd_table must contain 4 block drivers */
153 /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
154 PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
158 dev = pci_create_simple(bus, devfn, "piix3-ide");
159 pci_ide_create_devs(dev, hd_table);
163 /* hd_table must contain 4 block drivers */
164 /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
165 PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
169 dev = pci_create_simple(bus, devfn, "piix4-ide");
170 pci_ide_create_devs(dev, hd_table);
174 static PCIDeviceInfo piix_ide_info[] = {
176 .qdev.name = "piix3-ide",
177 .qdev.size = sizeof(PCIIDEState),
180 .init = pci_piix_ide_initfn,
181 .vendor_id = PCI_VENDOR_ID_INTEL,
182 .device_id = PCI_DEVICE_ID_INTEL_82371SB_1,
183 .class_id = PCI_CLASS_STORAGE_IDE,
185 .qdev.name = "piix4-ide",
186 .qdev.size = sizeof(PCIIDEState),
189 .init = pci_piix_ide_initfn,
190 .vendor_id = PCI_VENDOR_ID_INTEL,
191 .device_id = PCI_DEVICE_ID_INTEL_82371AB,
192 .class_id = PCI_CLASS_STORAGE_IDE,
198 static void piix_ide_register(void)
200 pci_qdev_register_many(piix_ide_info);
202 device_init(piix_ide_register);