| /* |
| * QEMU IDE Emulation: PCI PIIX3/4 support. |
| * |
| * Copyright (c) 2003 Fabrice Bellard |
| * Copyright (c) 2006 Openedhand Ltd. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include <hw/hw.h> |
| #include <hw/pc.h> |
| #include <hw/pci/pci.h> |
| #include <hw/isa.h> |
| #include "sysemu/blockdev.h" |
| #include "sysemu/sysemu.h" |
| #include "sysemu/dma.h" |
| |
| #include <hw/ide/pci.h> |
| |
| static uint64_t bmdma_read(void *opaque, hwaddr addr, unsigned size) |
| { |
| BMDMAState *bm = opaque; |
| uint32_t val; |
| |
| if (size != 1) { |
| return ((uint64_t)1 << (size * 8)) - 1; |
| } |
| |
| switch(addr & 3) { |
| case 0: |
| val = bm->cmd; |
| break; |
| case 2: |
| val = bm->status; |
| break; |
| default: |
| val = 0xff; |
| break; |
| } |
| #ifdef DEBUG_IDE |
| printf("bmdma: readb 0x%02x : 0x%02x\n", (uint8_t)addr, val); |
| #endif |
| return val; |
| } |
| |
| static void bmdma_write(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| BMDMAState *bm = opaque; |
| |
| if (size != 1) { |
| return; |
| } |
| |
| #ifdef DEBUG_IDE |
| printf("bmdma: writeb 0x%02x : 0x%02x\n", (uint8_t)addr, (uint8_t)val); |
| #endif |
| switch(addr & 3) { |
| case 0: |
| bmdma_cmd_writeb(bm, val); |
| break; |
| case 2: |
| bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06); |
| break; |
| } |
| } |
| |
| static const MemoryRegionOps piix_bmdma_ops = { |
| .read = bmdma_read, |
| .write = bmdma_write, |
| }; |
| |
| static void bmdma_setup_bar(PCIIDEState *d) |
| { |
| int i; |
| |
| memory_region_init(&d->bmdma_bar, "piix-bmdma-container", 16); |
| for(i = 0;i < 2; i++) { |
| BMDMAState *bm = &d->bmdma[i]; |
| |
| memory_region_init_io(&bm->extra_io, &piix_bmdma_ops, bm, |
| "piix-bmdma", 4); |
| memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io); |
| memory_region_init_io(&bm->addr_ioport, &bmdma_addr_ioport_ops, bm, |
| "bmdma", 4); |
| memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport); |
| } |
| } |
| |
| static void piix3_reset(void *opaque) |
| { |
| PCIIDEState *d = opaque; |
| uint8_t *pci_conf = d->dev.config; |
| int i; |
| |
| for (i = 0; i < 2; i++) { |
| ide_bus_reset(&d->bus[i]); |
| } |
| |
| /* TODO: this is the default. do not override. */ |
| pci_conf[PCI_COMMAND] = 0x00; |
| /* TODO: this is the default. do not override. */ |
| pci_conf[PCI_COMMAND + 1] = 0x00; |
| /* TODO: use pci_set_word */ |
| pci_conf[PCI_STATUS] = PCI_STATUS_FAST_BACK; |
| pci_conf[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8; |
| pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */ |
| } |
| |
| static void pci_piix_init_ports(PCIIDEState *d) { |
| static const struct { |
| int iobase; |
| int iobase2; |
| int isairq; |
| } port_info[] = { |
| {0x1f0, 0x3f6, 14}, |
| {0x170, 0x376, 15}, |
| }; |
| int i; |
| |
| for (i = 0; i < 2; i++) { |
| ide_bus_new(&d->bus[i], &d->dev.qdev, i); |
| ide_init_ioport(&d->bus[i], NULL, port_info[i].iobase, |
| port_info[i].iobase2); |
| ide_init2(&d->bus[i], isa_get_irq(NULL, port_info[i].isairq)); |
| |
| bmdma_init(&d->bus[i], &d->bmdma[i], d); |
| d->bmdma[i].bus = &d->bus[i]; |
| qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb, |
| &d->bmdma[i].dma); |
| } |
| } |
| |
| static int pci_piix_ide_initfn(PCIDevice *dev) |
| { |
| PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev); |
| uint8_t *pci_conf = d->dev.config; |
| |
| pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode |
| |
| qemu_register_reset(piix3_reset, d); |
| |
| bmdma_setup_bar(d); |
| pci_register_bar(&d->dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); |
| |
| vmstate_register(&d->dev.qdev, 0, &vmstate_ide_pci, d); |
| |
| pci_piix_init_ports(d); |
| |
| return 0; |
| } |
| |
| static int pci_piix3_xen_ide_unplug(DeviceState *dev) |
| { |
| PCIDevice *pci_dev; |
| PCIIDEState *pci_ide; |
| DriveInfo *di; |
| int i = 0; |
| |
| pci_dev = DO_UPCAST(PCIDevice, qdev, dev); |
| pci_ide = DO_UPCAST(PCIIDEState, dev, pci_dev); |
| |
| for (; i < 3; i++) { |
| di = drive_get_by_index(IF_IDE, i); |
| if (di != NULL && !di->media_cd) { |
| DeviceState *ds = bdrv_get_attached_dev(di->bdrv); |
| if (ds) { |
| bdrv_detach_dev(di->bdrv, ds); |
| } |
| bdrv_close(di->bdrv); |
| pci_ide->bus[di->bus].ifs[di->unit].bs = NULL; |
| drive_put_ref(di); |
| } |
| } |
| qdev_reset_all(&(pci_ide->dev.qdev)); |
| return 0; |
| } |
| |
| PCIDevice *pci_piix3_xen_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) |
| { |
| PCIDevice *dev; |
| |
| dev = pci_create_simple(bus, devfn, "piix3-ide-xen"); |
| pci_ide_create_devs(dev, hd_table); |
| return dev; |
| } |
| |
| static void pci_piix_ide_exitfn(PCIDevice *dev) |
| { |
| PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev); |
| unsigned i; |
| |
| for (i = 0; i < 2; ++i) { |
| memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io); |
| memory_region_destroy(&d->bmdma[i].extra_io); |
| memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport); |
| memory_region_destroy(&d->bmdma[i].addr_ioport); |
| } |
| memory_region_destroy(&d->bmdma_bar); |
| } |
| |
| /* hd_table must contain 4 block drivers */ |
| /* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */ |
| PCIDevice *pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) |
| { |
| PCIDevice *dev; |
| |
| dev = pci_create_simple(bus, devfn, "piix3-ide"); |
| pci_ide_create_devs(dev, hd_table); |
| return dev; |
| } |
| |
| /* hd_table must contain 4 block drivers */ |
| /* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */ |
| PCIDevice *pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) |
| { |
| PCIDevice *dev; |
| |
| dev = pci_create_simple(bus, devfn, "piix4-ide"); |
| pci_ide_create_devs(dev, hd_table); |
| return dev; |
| } |
| |
| static void piix3_ide_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->no_hotplug = 1; |
| k->init = pci_piix_ide_initfn; |
| k->exit = pci_piix_ide_exitfn; |
| k->vendor_id = PCI_VENDOR_ID_INTEL; |
| k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1; |
| k->class_id = PCI_CLASS_STORAGE_IDE; |
| dc->no_user = 1; |
| } |
| |
| static TypeInfo piix3_ide_info = { |
| .name = "piix3-ide", |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(PCIIDEState), |
| .class_init = piix3_ide_class_init, |
| }; |
| |
| static void piix3_ide_xen_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->init = pci_piix_ide_initfn; |
| k->vendor_id = PCI_VENDOR_ID_INTEL; |
| k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1; |
| k->class_id = PCI_CLASS_STORAGE_IDE; |
| dc->no_user = 1; |
| dc->unplug = pci_piix3_xen_ide_unplug; |
| } |
| |
| static TypeInfo piix3_ide_xen_info = { |
| .name = "piix3-ide-xen", |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(PCIIDEState), |
| .class_init = piix3_ide_xen_class_init, |
| }; |
| |
| static void piix4_ide_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->no_hotplug = 1; |
| k->init = pci_piix_ide_initfn; |
| k->exit = pci_piix_ide_exitfn; |
| k->vendor_id = PCI_VENDOR_ID_INTEL; |
| k->device_id = PCI_DEVICE_ID_INTEL_82371AB; |
| k->class_id = PCI_CLASS_STORAGE_IDE; |
| dc->no_user = 1; |
| } |
| |
| static TypeInfo piix4_ide_info = { |
| .name = "piix4-ide", |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(PCIIDEState), |
| .class_init = piix4_ide_class_init, |
| }; |
| |
| static void piix_ide_register_types(void) |
| { |
| type_register_static(&piix3_ide_info); |
| type_register_static(&piix3_ide_xen_info); |
| type_register_static(&piix4_ide_info); |
| } |
| |
| type_init(piix_ide_register_types) |