qemu

hcd-ehci-pci.c (6707B)

---

 /*
  * 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/qdev-properties.h"
 #include "hw/usb/hcd-ehci.h"
 #include "migration/vmstate.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));
 
     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;
     device_class_set_props(dc, 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)