2 * QEMU IDE Emulation: PCI VIA82C686B support.
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
6 * Copyright (c) 2010 Huacai Chen <zltjiangshi@gmail.com>
8 * Permission is hereby granted, free of charge, to any person obtaining a copy
9 * of this software and associated documentation files (the "Software"), to deal
10 * in the Software without restriction, including without limitation the rights
11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
12 * copies of the Software, and to permit persons to whom the Software is
13 * furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include "qemu/osdep.h"
28 #include "hw/pci/pci.h"
29 #include "sysemu/sysemu.h"
30 #include "sysemu/dma.h"
32 #include "hw/ide/pci.h"
44 static uint64_t bmdma_read(void *opaque, hwaddr addr,
47 BMDMAState *bm = opaque;
51 return ((uint64_t)1 << (size * 8)) - 1;
66 trace_bmdma_read_via(addr, val);
70 static void bmdma_write(void *opaque, hwaddr addr,
71 uint64_t val, unsigned size)
73 BMDMAState *bm = opaque;
79 trace_bmdma_write_via(addr, val);
82 bmdma_cmd_writeb(bm, val);
85 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
91 static const MemoryRegionOps via_bmdma_ops = {
96 static void bmdma_setup_bar(PCIIDEState *d)
100 memory_region_init(&d->bmdma_bar, OBJECT(d), "via-bmdma-container", 16);
101 for(i = 0;i < 2; i++) {
102 BMDMAState *bm = &d->bmdma[i];
104 memory_region_init_io(&bm->extra_io, OBJECT(d), &via_bmdma_ops, bm,
106 memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io);
107 memory_region_init_io(&bm->addr_ioport, OBJECT(d),
108 &bmdma_addr_ioport_ops, bm, "bmdma", 4);
109 memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport);
113 static void via_ide_reset(void *opaque)
115 PCIIDEState *d = opaque;
116 PCIDevice *pd = PCI_DEVICE(d);
117 uint8_t *pci_conf = pd->config;
120 for (i = 0; i < 2; i++) {
121 ide_bus_reset(&d->bus[i]);
124 pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_WAIT);
125 pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK |
126 PCI_STATUS_DEVSEL_MEDIUM);
128 pci_set_long(pci_conf + PCI_BASE_ADDRESS_0, 0x000001f0);
129 pci_set_long(pci_conf + PCI_BASE_ADDRESS_1, 0x000003f4);
130 pci_set_long(pci_conf + PCI_BASE_ADDRESS_2, 0x00000170);
131 pci_set_long(pci_conf + PCI_BASE_ADDRESS_3, 0x00000374);
132 pci_set_long(pci_conf + PCI_BASE_ADDRESS_4, 0x0000cc01); /* BMIBA: 20-23h */
133 pci_set_long(pci_conf + PCI_INTERRUPT_LINE, 0x0000010e);
135 /* IDE chip enable, IDE configuration 1/2, IDE FIFO Configuration*/
136 pci_set_long(pci_conf + 0x40, 0x0a090600);
137 /* IDE misc configuration 1/2/3 */
138 pci_set_long(pci_conf + 0x44, 0x00c00068);
139 /* IDE Timing control */
140 pci_set_long(pci_conf + 0x48, 0xa8a8a8a8);
141 /* IDE Address Setup Time */
142 pci_set_long(pci_conf + 0x4c, 0x000000ff);
143 /* UltraDMA Extended Timing Control*/
144 pci_set_long(pci_conf + 0x50, 0x07070707);
145 /* UltraDMA FIFO Control */
146 pci_set_long(pci_conf + 0x54, 0x00000004);
147 /* IDE primary sector size */
148 pci_set_long(pci_conf + 0x60, 0x00000200);
149 /* IDE secondary sector size */
150 pci_set_long(pci_conf + 0x68, 0x00000200);
152 pci_set_long(pci_conf + 0xc0, 0x00020001);
155 static void via_ide_realize(PCIDevice *dev, Error **errp)
157 PCIIDEState *d = PCI_IDE(dev);
158 uint8_t *pci_conf = dev->config;
161 pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */
162 pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0);
164 qemu_register_reset(via_ide_reset, d);
166 pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar);
168 vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d);
170 for (i = 0; i < 2; i++) {
171 ide_bus_new(&d->bus[i], sizeof(d->bus[i]), DEVICE(d), i, 2);
172 ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase,
173 port_info[i].iobase2);
174 ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq));
176 bmdma_init(&d->bus[i], &d->bmdma[i], d);
177 d->bmdma[i].bus = &d->bus[i];
178 ide_register_restart_cb(&d->bus[i]);
182 static void via_ide_exitfn(PCIDevice *dev)
184 PCIIDEState *d = PCI_IDE(dev);
187 for (i = 0; i < 2; ++i) {
188 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io);
189 memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport);
193 void via_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
197 dev = pci_create_simple(bus, devfn, "via-ide");
198 pci_ide_create_devs(dev, hd_table);
201 static void via_ide_class_init(ObjectClass *klass, void *data)
203 DeviceClass *dc = DEVICE_CLASS(klass);
204 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
206 k->realize = via_ide_realize;
207 k->exit = via_ide_exitfn;
208 k->vendor_id = PCI_VENDOR_ID_VIA;
209 k->device_id = PCI_DEVICE_ID_VIA_IDE;
211 k->class_id = PCI_CLASS_STORAGE_IDE;
212 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
215 static const TypeInfo via_ide_info = {
217 .parent = TYPE_PCI_IDE,
218 .class_init = via_ide_class_init,
221 static void via_ide_register_types(void)
223 type_register_static(&via_ide_info);
226 type_init(via_ide_register_types)