/*
* 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.h>
#include <hw/isa.h>
#include "block.h"
#include "block_int.h"
#include "sysemu.h"
#include "dma.h"
#include <hw/ide/pci.h>
static uint32_t bmdma_readb(void *opaque, uint32_t addr)
{
BMDMAState *bm = opaque;
uint32_t val;
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_writeb(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
#ifdef DEBUG_IDE
printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
#endif
switch(addr & 3) {
case 2:
bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
break;
}
}
static void bmdma_map(PCIDevice *pci_dev, int region_num,
pcibus_t addr, pcibus_t size, int type)
{
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, pci_dev);
int i;
for(i = 0;i < 2; i++) {
BMDMAState *bm = &d->bmdma[i];
d->bus[i].bmdma = bm;
bm->bus = d->bus+i;
qemu_add_vm_change_state_handler(ide_dma_restart_cb, bm);
register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm);
register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm);
register_ioport_read(addr, 4, 1, bmdma_readb, bm);
register_ioport_write(addr + 4, 4, 1, bmdma_addr_writeb, bm);
register_ioport_read(addr + 4, 4, 1, bmdma_addr_readb, bm);
register_ioport_write(addr + 4, 4, 2, bmdma_addr_writew, bm);
register_ioport_read(addr + 4, 4, 2, bmdma_addr_readw, bm);
register_ioport_write(addr + 4, 4, 4, bmdma_addr_writel, bm);
register_ioport_read(addr + 4, 4, 4, bmdma_addr_readl, bm);
addr += 8;
}
}
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]);
ide_dma_reset(&d->bmdma[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 int pci_piix_ide_initfn(PCIIDEState *d)
{
uint8_t *pci_conf = d->dev.config;
pci_conf[PCI_CLASS_PROG] = 0x80; // legacy ATA mode
pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE);
pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
qemu_register_reset(piix3_reset, d);
pci_register_bar(&d->dev, 4, 0x10, PCI_BASE_ADDRESS_SPACE_IO, bmdma_map);
vmstate_register(0, &vmstate_ide_pci, d);
ide_bus_new(&d->bus[0], &d->dev.qdev);
ide_bus_new(&d->bus[1], &d->dev.qdev);
ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6);
ide_init_ioport(&d->bus[1], 0x170, 0x376);
ide_init2(&d->bus[0], isa_reserve_irq(14));
ide_init2(&d->bus[1], isa_reserve_irq(15));
return 0;
}
static int pci_piix3_ide_initfn(PCIDevice *dev)
{
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
pci_config_set_vendor_id(d->dev.config, PCI_VENDOR_ID_INTEL);
pci_config_set_device_id(d->dev.config, PCI_DEVICE_ID_INTEL_82371SB_1);
return pci_piix_ide_initfn(d);
}
static int pci_piix4_ide_initfn(PCIDevice *dev)
{
PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
pci_config_set_vendor_id(d->dev.config, PCI_VENDOR_ID_INTEL);
pci_config_set_device_id(d->dev.config, PCI_DEVICE_ID_INTEL_82371AB);
return pci_piix_ide_initfn(d);
}
/* hd_table must contain 4 block drivers */
/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
void 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);
}
/* hd_table must contain 4 block drivers */
/* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
void 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);
}
static PCIDeviceInfo piix_ide_info[] = {
{
.qdev.name = "piix3-ide",
.qdev.size = sizeof(PCIIDEState),
.qdev.no_user = 1,
.init = pci_piix3_ide_initfn,
},{
.qdev.name = "piix4-ide",
.qdev.size = sizeof(PCIIDEState),
.qdev.no_user = 1,
.init = pci_piix4_ide_initfn,
},{
/* end of list */
}
};
static void piix_ide_register(void)
{
pci_qdev_register_many(piix_ide_info);
}
device_init(piix_ide_register);
