diff options
Diffstat (limited to 'src/hw/ide/via.c')
| -rw-r--r-- | src/hw/ide/via.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/src/hw/ide/via.c b/src/hw/ide/via.c new file mode 100644 index 0000000..e2da9ef --- /dev/null +++ b/src/hw/ide/via.c @@ -0,0 +1,235 @@ +/* + * QEMU IDE Emulation: PCI VIA82C686B support. + * + * Copyright (c) 2003 Fabrice Bellard + * Copyright (c) 2006 Openedhand Ltd. + * Copyright (c) 2010 Huacai Chen <zltjiangshi@gmail.com> + * + * 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/i386/pc.h> +#include <hw/pci/pci.h> +#include <hw/isa/isa.h> +#include "sysemu/block-backend.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", 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", addr, 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; + default:; + } +} + +static const MemoryRegionOps via_bmdma_ops = { + .read = bmdma_read, + .write = bmdma_write, +}; + +static void bmdma_setup_bar(PCIIDEState *d) +{ + int i; + + memory_region_init(&d->bmdma_bar, OBJECT(d), "via-bmdma-container", 16); + for(i = 0;i < 2; i++) { + BMDMAState *bm = &d->bmdma[i]; + + memory_region_init_io(&bm->extra_io, OBJECT(d), &via_bmdma_ops, bm, + "via-bmdma", 4); + memory_region_add_subregion(&d->bmdma_bar, i * 8, &bm->extra_io); + memory_region_init_io(&bm->addr_ioport, OBJECT(d), + &bmdma_addr_ioport_ops, bm, "bmdma", 4); + memory_region_add_subregion(&d->bmdma_bar, i * 8 + 4, &bm->addr_ioport); + } +} + +static void via_reset(void *opaque) +{ + PCIIDEState *d = opaque; + PCIDevice *pd = PCI_DEVICE(d); + uint8_t *pci_conf = pd->config; + int i; + + for (i = 0; i < 2; i++) { + ide_bus_reset(&d->bus[i]); + } + + pci_set_word(pci_conf + PCI_COMMAND, PCI_COMMAND_WAIT); + pci_set_word(pci_conf + PCI_STATUS, PCI_STATUS_FAST_BACK | + PCI_STATUS_DEVSEL_MEDIUM); + + pci_set_long(pci_conf + PCI_BASE_ADDRESS_0, 0x000001f0); + pci_set_long(pci_conf + PCI_BASE_ADDRESS_1, 0x000003f4); + pci_set_long(pci_conf + PCI_BASE_ADDRESS_2, 0x00000170); + pci_set_long(pci_conf + PCI_BASE_ADDRESS_3, 0x00000374); + pci_set_long(pci_conf + PCI_BASE_ADDRESS_4, 0x0000cc01); /* BMIBA: 20-23h */ + pci_set_long(pci_conf + PCI_INTERRUPT_LINE, 0x0000010e); + + /* IDE chip enable, IDE configuration 1/2, IDE FIFO Configuration*/ + pci_set_long(pci_conf + 0x40, 0x0a090600); + /* IDE misc configuration 1/2/3 */ + pci_set_long(pci_conf + 0x44, 0x00c00068); + /* IDE Timing control */ + pci_set_long(pci_conf + 0x48, 0xa8a8a8a8); + /* IDE Address Setup Time */ + pci_set_long(pci_conf + 0x4c, 0x000000ff); + /* UltraDMA Extended Timing Control*/ + pci_set_long(pci_conf + 0x50, 0x07070707); + /* UltraDMA FIFO Control */ + pci_set_long(pci_conf + 0x54, 0x00000004); + /* IDE primary sector size */ + pci_set_long(pci_conf + 0x60, 0x00000200); + /* IDE secondary sector size */ + pci_set_long(pci_conf + 0x68, 0x00000200); + /* PCI PM Block */ + pci_set_long(pci_conf + 0xc0, 0x00020001); +} + +static void vt82c686b_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], sizeof(d->bus[i]), DEVICE(d), i, 2); + 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]; + ide_register_restart_cb(&d->bus[i]); + } +} + +/* via ide func */ +static void vt82c686b_ide_realize(PCIDevice *dev, Error **errp) +{ + PCIIDEState *d = PCI_IDE(dev); + uint8_t *pci_conf = dev->config; + + pci_config_set_prog_interface(pci_conf, 0x8a); /* legacy ATA mode */ + pci_set_long(pci_conf + PCI_CAPABILITY_LIST, 0x000000c0); + + qemu_register_reset(via_reset, d); + bmdma_setup_bar(d); + pci_register_bar(dev, 4, PCI_BASE_ADDRESS_SPACE_IO, &d->bmdma_bar); + + vmstate_register(DEVICE(dev), 0, &vmstate_ide_pci, d); + + vt82c686b_init_ports(d); +} + +static void vt82c686b_ide_exitfn(PCIDevice *dev) +{ + PCIIDEState *d = PCI_IDE(dev); + unsigned i; + + for (i = 0; i < 2; ++i) { + memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].extra_io); + memory_region_del_subregion(&d->bmdma_bar, &d->bmdma[i].addr_ioport); + } +} + +void vt82c686b_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn) +{ + PCIDevice *dev; + + dev = pci_create_simple(bus, devfn, "via-ide"); + pci_ide_create_devs(dev, hd_table); +} + +static void via_ide_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); + + k->realize = vt82c686b_ide_realize; + k->exit = vt82c686b_ide_exitfn; + k->vendor_id = PCI_VENDOR_ID_VIA; + k->device_id = PCI_DEVICE_ID_VIA_IDE; + k->revision = 0x06; + k->class_id = PCI_CLASS_STORAGE_IDE; + set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); +} + +static const TypeInfo via_ide_info = { + .name = "via-ide", + .parent = TYPE_PCI_IDE, + .class_init = via_ide_class_init, +}; + +static void via_ide_register_types(void) +{ + type_register_static(&via_ide_info); +} + +type_init(via_ide_register_types) |
