hw/usb/hcd-ehci-pci.c

   1 /*
   2  * QEMU USB EHCI Emulation
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or(at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "hw/usb/hcd-ehci.h"
  19 #include "hw/pci.h"
  20
  21 typedef struct EHCIPCIState {
  22     PCIDevice pcidev;
  23     EHCIState ehci;
  24 } EHCIPCIState;
  25
  26 typedef struct EHCIPCIInfo {
  27     const char *name;
  28     uint16_t vendor_id;
  29     uint16_t device_id;
  30     uint8_t  revision;
  31 } EHCIPCIInfo;
  32
  33 static int usb_ehci_pci_initfn(PCIDevice *dev)
  34 {
  35     EHCIPCIState *i = DO_UPCAST(EHCIPCIState, pcidev, dev);
  36     EHCIState *s = &i->ehci;
  37     uint8_t *pci_conf = dev->config;
  38
  39     pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20);
  40
  41     /* capabilities pointer */
  42     pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00);
  43     /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */
  44
  45     pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */
  46     pci_set_byte(&pci_conf[PCI_MIN_GNT], 0);
  47     pci_set_byte(&pci_conf[PCI_MAX_LAT], 0);
  48
  49     /* pci_conf[0x50] = 0x01; *//* power management caps */
  50
  51     pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */
  52     pci_set_byte(&pci_conf[0x61], 0x20);  /* frame length adjustment (2.1.5) */
  53     pci_set_word(&pci_conf[0x62], 0x00);  /* port wake up capability (2.1.6) */
  54
  55     pci_conf[0x64] = 0x00;
  56     pci_conf[0x65] = 0x00;
  57     pci_conf[0x66] = 0x00;
  58     pci_conf[0x67] = 0x00;
  59     pci_conf[0x68] = 0x01;
  60     pci_conf[0x69] = 0x00;
  61     pci_conf[0x6a] = 0x00;
  62     pci_conf[0x6b] = 0x00;  /* USBLEGSUP */
  63     pci_conf[0x6c] = 0x00;
  64     pci_conf[0x6d] = 0x00;
  65     pci_conf[0x6e] = 0x00;
  66     pci_conf[0x6f] = 0xc0;  /* USBLEFCTLSTS */
  67
  68     s->caps[0x09] = 0x68;        /* EECP */
  69
  70     s->irq = dev->irq[3];
  71     s->dma = pci_dma_context(dev);
  72
  73     s->capsbase = 0x00;
  74     s->opregbase = 0x20;
  75
  76     usb_ehci_initfn(s, DEVICE(dev));
  77     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
  78
  79     return 0;
  80 }
  81
  82 static Property ehci_pci_properties[] = {
  83     DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128),
  84     DEFINE_PROP_END_OF_LIST(),
  85 };
  86
  87 static const VMStateDescription vmstate_ehci_pci = {
  88     .name        = "ehci",
  89     .version_id  = 2,
  90     .minimum_version_id  = 1,
  91     .fields      = (VMStateField[]) {
  92         VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState),
  93         VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState),
  94     }
  95 };
  96
  97 static void ehci_class_init(ObjectClass *klass, void *data)
  98 {
  99     DeviceClass *dc = DEVICE_CLASS(klass);
 100     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 101     EHCIPCIInfo *i = data;
 102
 103     k->init = usb_ehci_pci_initfn;
 104     k->vendor_id = i->vendor_id;
 105     k->device_id = i->device_id;
 106     k->revision = i->revision;
 107     k->class_id = PCI_CLASS_SERIAL_USB;
 108     dc->vmsd = &vmstate_ehci;
 109     dc->props = ehci_pci_properties;
 110 }
 111
 112 static struct EHCIPCIInfo ehci_pci_info[] = {
 113     {
 114         .name      = "usb-ehci",
 115         .vendor_id = PCI_VENDOR_ID_INTEL,
 116         .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */
 117         .revision  = 0x10,
 118     },{
 119         .name      = "ich9-usb-ehci1", /* 00:1d.7 */
 120         .vendor_id = PCI_VENDOR_ID_INTEL,
 121         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1,
 122         .revision  = 0x03,
 123     },{
 124         .name      = "ich9-usb-ehci2", /* 00:1a.7 */
 125         .vendor_id = PCI_VENDOR_ID_INTEL,
 126         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2,
 127         .revision  = 0x03,
 128     }
 129 };
 130
 131 static void ehci_pci_register_types(void)
 132 {
 133     TypeInfo ehci_type_info = {
 134         .parent        = TYPE_PCI_DEVICE,
 135         .instance_size = sizeof(EHCIPCIState),
 136         .class_init    = ehci_class_init,
 137     };
 138     int i;
 139
 140     for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) {
 141         ehci_type_info.name = ehci_pci_info[i].name;
 142         ehci_type_info.class_data = ehci_pci_info + i;
 143         type_register(&ehci_type_info);
 144     }
 145 }
 146
 147 type_init(ehci_pci_register_types)
 148
 149 struct ehci_companions {
 150     const char *name;
 151     int func;
 152     int port;
 153 };
 154
 155 static const struct ehci_companions ich9_1d[] = {
 156     { .name = "ich9-usb-uhci1", .func = 0, .port = 0 },
 157     { .name = "ich9-usb-uhci2", .func = 1, .port = 2 },
 158     { .name = "ich9-usb-uhci3", .func = 2, .port = 4 },
 159 };
 160
 161 static const struct ehci_companions ich9_1a[] = {
 162     { .name = "ich9-usb-uhci4", .func = 0, .port = 0 },
 163     { .name = "ich9-usb-uhci5", .func = 1, .port = 2 },
 164     { .name = "ich9-usb-uhci6", .func = 2, .port = 4 },
 165 };
 166
 167 int ehci_create_ich9_with_companions(PCIBus *bus, int slot)
 168 {
 169     const struct ehci_companions *comp;
 170     PCIDevice *ehci, *uhci;
 171     BusState *usbbus;
 172     const char *name;
 173     int i;
 174
 175     switch (slot) {
 176     case 0x1d:
 177         name = "ich9-usb-ehci1";
 178         comp = ich9_1d;
 179         break;
 180     case 0x1a:
 181         name = "ich9-usb-ehci2";
 182         comp = ich9_1a;
 183         break;
 184     default:
 185         return -1;
 186     }
 187
 188     ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name);
 189     qdev_init_nofail(&ehci->qdev);
 190     usbbus = QLIST_FIRST(&ehci->qdev.child_bus);
 191
 192     for (i = 0; i < 3; i++) {
 193         uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func),
 194                                         true, comp[i].name);
 195         qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name);
 196         qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port);
 197         qdev_init_nofail(&uhci->qdev);
 198     }
 199     return 0;
 200 }