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/*
* QEMU USB EHCI Emulation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "hw/usb/hcd-ehci.h"
#include "qemu/module.h"
#include "qemu/range.h"
typedef struct EHCIPCIInfo {
const char *name;
uint16_t vendor_id;
uint16_t device_id;
uint8_t revision;
bool companion;
} EHCIPCIInfo;
static void usb_ehci_pci_realize(PCIDevice *dev, Error **errp)
{
EHCIPCIState *i = PCI_EHCI(dev);
EHCIState *s = &i->ehci;
uint8_t *pci_conf = dev->config;
pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20);
/* capabilities pointer */
pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00);
/* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */
pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */
pci_set_byte(&pci_conf[PCI_MIN_GNT], 0);
pci_set_byte(&pci_conf[PCI_MAX_LAT], 0);
/* pci_conf[0x50] = 0x01; *//* power management caps */
pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */
pci_set_byte(&pci_conf[0x61], 0x20); /* frame length adjustment (2.1.5) */
pci_set_word(&pci_conf[0x62], 0x00); /* port wake up capability (2.1.6) */
pci_conf[0x64] = 0x00;
pci_conf[0x65] = 0x00;
pci_conf[0x66] = 0x00;
pci_conf[0x67] = 0x00;
pci_conf[0x68] = 0x01;
pci_conf[0x69] = 0x00;
pci_conf[0x6a] = 0x00;
pci_conf[0x6b] = 0x00; /* USBLEGSUP */
pci_conf[0x6c] = 0x00;
pci_conf[0x6d] = 0x00;
pci_conf[0x6e] = 0x00;
pci_conf[0x6f] = 0xc0; /* USBLEFCTLSTS */
s->irq = pci_allocate_irq(dev);
s->as = pci_get_address_space(dev);
usb_ehci_realize(s, DEVICE(dev), NULL);
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
}
static void usb_ehci_pci_init(Object *obj)
{
DeviceClass *dc = OBJECT_GET_CLASS(DeviceClass, obj, TYPE_DEVICE);
EHCIPCIState *i = PCI_EHCI(obj);
EHCIState *s = &i->ehci;
s->caps[0x09] = 0x68; /* EECP */
s->capsbase = 0x00;
s->opregbase = 0x20;
s->portscbase = 0x44;
s->portnr = NB_PORTS;
if (!dc->hotpluggable) {
s->companion_enable = true;
}
usb_ehci_init(s, DEVICE(obj));
}
static void usb_ehci_pci_finalize(Object *obj)
{
EHCIPCIState *i = PCI_EHCI(obj);
EHCIState *s = &i->ehci;
usb_ehci_finalize(s);
}
static void usb_ehci_pci_exit(PCIDevice *dev)
{
EHCIPCIState *i = PCI_EHCI(dev);
EHCIState *s = &i->ehci;
usb_ehci_unrealize(s, DEVICE(dev), NULL);
g_free(s->irq);
s->irq = NULL;
}
static void usb_ehci_pci_reset(DeviceState *dev)
{
PCIDevice *pci_dev = PCI_DEVICE(dev);
EHCIPCIState *i = PCI_EHCI(pci_dev);
EHCIState *s = &i->ehci;
ehci_reset(s);
}
static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr,
uint32_t val, int l)
{
EHCIPCIState *i = PCI_EHCI(dev);
bool busmaster;
pci_default_write_config(dev, addr, val, l);
if (!range_covers_byte(addr, l, PCI_COMMAND)) {
return;
}
busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER;
i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory;
}
static Property ehci_pci_properties[] = {
DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128),
DEFINE_PROP_END_OF_LIST(),
};
static const VMStateDescription vmstate_ehci_pci = {
.name = "ehci",
.version_id = 2,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState),
VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState),
VMSTATE_END_OF_LIST()
}
};
static void ehci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
k->realize = usb_ehci_pci_realize;
k->exit = usb_ehci_pci_exit;
k->class_id = PCI_CLASS_SERIAL_USB;
k->config_write = usb_ehci_pci_write_config;
dc->vmsd = &vmstate_ehci_pci;
dc->props = ehci_pci_properties;
dc->reset = usb_ehci_pci_reset;
}
static const TypeInfo ehci_pci_type_info = {
.name = TYPE_PCI_EHCI,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(EHCIPCIState),
.instance_init = usb_ehci_pci_init,
.instance_finalize = usb_ehci_pci_finalize,
.abstract = true,
.class_init = ehci_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
static void ehci_data_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
EHCIPCIInfo *i = data;
k->vendor_id = i->vendor_id;
k->device_id = i->device_id;
k->revision = i->revision;
set_bit(DEVICE_CATEGORY_USB, dc->categories);
if (i->companion) {
dc->hotpluggable = false;
}
}
static struct EHCIPCIInfo ehci_pci_info[] = {
{
.name = "usb-ehci",
.vendor_id = PCI_VENDOR_ID_INTEL,
.device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */
.revision = 0x10,
},{
.name = "ich9-usb-ehci1", /* 00:1d.7 */
.vendor_id = PCI_VENDOR_ID_INTEL,
.device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1,
.revision = 0x03,
.companion = true,
},{
.name = "ich9-usb-ehci2", /* 00:1a.7 */
.vendor_id = PCI_VENDOR_ID_INTEL,
.device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2,
.revision = 0x03,
.companion = true,
}
};
static void ehci_pci_register_types(void)
{
TypeInfo ehci_type_info = {
.parent = TYPE_PCI_EHCI,
.class_init = ehci_data_class_init,
};
int i;
type_register_static(&ehci_pci_type_info);
for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) {
ehci_type_info.name = ehci_pci_info[i].name;
ehci_type_info.class_data = ehci_pci_info + i;
type_register(&ehci_type_info);
}
}
type_init(ehci_pci_register_types)
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