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 "qemu/range.h"
  20
  21 typedef struct EHCIPCIInfo {
  22     const char *name;
  23     uint16_t vendor_id;
  24     uint16_t device_id;
  25     uint8_t  revision;
  26 } EHCIPCIInfo;
  27
  28 static int usb_ehci_pci_initfn(PCIDevice *dev)
  29 {
  30     EHCIPCIState *i = PCI_EHCI(dev);
  31     EHCIState *s = &i->ehci;
  32     uint8_t *pci_conf = dev->config;
  33
  34     pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20);
  35
  36     /* capabilities pointer */
  37     pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00);
  38     /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */
  39
  40     pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */
  41     pci_set_byte(&pci_conf[PCI_MIN_GNT], 0);
  42     pci_set_byte(&pci_conf[PCI_MAX_LAT], 0);
  43
  44     /* pci_conf[0x50] = 0x01; *//* power management caps */
  45
  46     pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */
  47     pci_set_byte(&pci_conf[0x61], 0x20);  /* frame length adjustment (2.1.5) */
  48     pci_set_word(&pci_conf[0x62], 0x00);  /* port wake up capability (2.1.6) */
  49
  50     pci_conf[0x64] = 0x00;
  51     pci_conf[0x65] = 0x00;
  52     pci_conf[0x66] = 0x00;
  53     pci_conf[0x67] = 0x00;
  54     pci_conf[0x68] = 0x01;
  55     pci_conf[0x69] = 0x00;
  56     pci_conf[0x6a] = 0x00;
  57     pci_conf[0x6b] = 0x00;  /* USBLEGSUP */
  58     pci_conf[0x6c] = 0x00;
  59     pci_conf[0x6d] = 0x00;
  60     pci_conf[0x6e] = 0x00;
  61     pci_conf[0x6f] = 0xc0;  /* USBLEFCTLSTS */
  62
  63     s->caps[0x09] = 0x68;        /* EECP */
  64
  65     s->irq = dev->irq[3];
  66     s->dma = pci_dma_context(dev);
  67
  68     s->capsbase = 0x00;
  69     s->opregbase = 0x20;
  70
  71     usb_ehci_initfn(s, DEVICE(dev));
  72     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
  73
  74     return 0;
  75 }
  76
  77 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr,
  78                                       uint32_t val, int l)
  79 {
  80     EHCIPCIState *i = PCI_EHCI(dev);
  81     bool busmaster;
  82
  83     pci_default_write_config(dev, addr, val, l);
  84
  85     if (!range_covers_byte(addr, l, PCI_COMMAND)) {
  86         return;
  87     }
  88     busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER;
  89     i->ehci.dma = busmaster ? pci_dma_context(dev) : NULL;
  90 }
  91
  92 static Property ehci_pci_properties[] = {
  93     DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128),
  94     DEFINE_PROP_END_OF_LIST(),
  95 };
  96
  97 static const VMStateDescription vmstate_ehci_pci = {
  98     .name        = "ehci",
  99     .version_id  = 2,
 100     .minimum_version_id  = 1,
 101     .fields      = (VMStateField[]) {
 102         VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState),
 103         VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState),
 104         VMSTATE_END_OF_LIST()
 105     }
 106 };
 107
 108 static void ehci_class_init(ObjectClass *klass, void *data)
 109 {
 110     DeviceClass *dc = DEVICE_CLASS(klass);
 111     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 112
 113     k->init = usb_ehci_pci_initfn;
 114     k->class_id = PCI_CLASS_SERIAL_USB;
 115     k->config_write = usb_ehci_pci_write_config;
 116     k->no_hotplug = 1;
 117     dc->vmsd = &vmstate_ehci_pci;
 118     dc->props = ehci_pci_properties;
 119 }
 120
 121 static const TypeInfo ehci_pci_type_info = {
 122     .name = TYPE_PCI_EHCI,
 123     .parent = TYPE_PCI_DEVICE,
 124     .instance_size = sizeof(EHCIPCIState),
 125     .abstract = true,
 126     .class_init = ehci_class_init,
 127 };
 128
 129 static void ehci_data_class_init(ObjectClass *klass, void *data)
 130 {
 131     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 132     EHCIPCIInfo *i = data;
 133
 134     k->vendor_id = i->vendor_id;
 135     k->device_id = i->device_id;
 136     k->revision = i->revision;
 137 }
 138
 139 static struct EHCIPCIInfo ehci_pci_info[] = {
 140     {
 141         .name      = "usb-ehci",
 142         .vendor_id = PCI_VENDOR_ID_INTEL,
 143         .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */
 144         .revision  = 0x10,
 145     },{
 146         .name      = "ich9-usb-ehci1", /* 00:1d.7 */
 147         .vendor_id = PCI_VENDOR_ID_INTEL,
 148         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1,
 149         .revision  = 0x03,
 150     },{
 151         .name      = "ich9-usb-ehci2", /* 00:1a.7 */
 152         .vendor_id = PCI_VENDOR_ID_INTEL,
 153         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2,
 154         .revision  = 0x03,
 155     }
 156 };
 157
 158 static void ehci_pci_register_types(void)
 159 {
 160     TypeInfo ehci_type_info = {
 161         .parent        = TYPE_PCI_EHCI,
 162         .class_init    = ehci_data_class_init,
 163     };
 164     int i;
 165
 166     type_register_static(&ehci_pci_type_info);
 167
 168     for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) {
 169         ehci_type_info.name = ehci_pci_info[i].name;
 170         ehci_type_info.class_data = ehci_pci_info + i;
 171         type_register(&ehci_type_info);
 172     }
 173 }
 174
 175 type_init(ehci_pci_register_types)
 176
 177 struct ehci_companions {
 178     const char *name;
 179     int func;
 180     int port;
 181 };
 182
 183 static const struct ehci_companions ich9_1d[] = {
 184     { .name = "ich9-usb-uhci1", .func = 0, .port = 0 },
 185     { .name = "ich9-usb-uhci2", .func = 1, .port = 2 },
 186     { .name = "ich9-usb-uhci3", .func = 2, .port = 4 },
 187 };
 188
 189 static const struct ehci_companions ich9_1a[] = {
 190     { .name = "ich9-usb-uhci4", .func = 0, .port = 0 },
 191     { .name = "ich9-usb-uhci5", .func = 1, .port = 2 },
 192     { .name = "ich9-usb-uhci6", .func = 2, .port = 4 },
 193 };
 194
 195 int ehci_create_ich9_with_companions(PCIBus *bus, int slot)
 196 {
 197     const struct ehci_companions *comp;
 198     PCIDevice *ehci, *uhci;
 199     BusState *usbbus;
 200     const char *name;
 201     int i;
 202
 203     switch (slot) {
 204     case 0x1d:
 205         name = "ich9-usb-ehci1";
 206         comp = ich9_1d;
 207         break;
 208     case 0x1a:
 209         name = "ich9-usb-ehci2";
 210         comp = ich9_1a;
 211         break;
 212     default:
 213         return -1;
 214     }
 215
 216     ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name);
 217     qdev_init_nofail(&ehci->qdev);
 218     usbbus = QLIST_FIRST(&ehci->qdev.child_bus);
 219
 220     for (i = 0; i < 3; i++) {
 221         uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func),
 222                                         true, comp[i].name);
 223         qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name);
 224         qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port);
 225         qdev_init_nofail(&uhci->qdev);
 226     }
 227     return 0;
 228 }