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->irq = dev->irq[3];
  64     s->as = pci_get_address_space(dev);
  65
  66     usb_ehci_realize(s, DEVICE(dev), NULL);
  67     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
  68
  69     return 0;
  70 }
  71
  72 static void usb_ehci_pci_init(Object *obj)
  73 {
  74     EHCIPCIState *i = PCI_EHCI(obj);
  75     EHCIState *s = &i->ehci;
  76
  77     s->caps[0x09] = 0x68;        /* EECP */
  78
  79     s->capsbase = 0x00;
  80     s->opregbase = 0x20;
  81     s->portscbase = 0x44;
  82     s->portnr = NB_PORTS;
  83
  84     usb_ehci_init(s, DEVICE(obj));
  85 }
  86
  87 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr,
  88                                       uint32_t val, int l)
  89 {
  90     EHCIPCIState *i = PCI_EHCI(dev);
  91     bool busmaster;
  92
  93     pci_default_write_config(dev, addr, val, l);
  94
  95     if (!range_covers_byte(addr, l, PCI_COMMAND)) {
  96         return;
  97     }
  98     busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER;
  99     i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory;
 100 }
 101
 102 static Property ehci_pci_properties[] = {
 103     DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128),
 104     DEFINE_PROP_END_OF_LIST(),
 105 };
 106
 107 static const VMStateDescription vmstate_ehci_pci = {
 108     .name        = "ehci",
 109     .version_id  = 2,
 110     .minimum_version_id  = 1,
 111     .fields      = (VMStateField[]) {
 112         VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState),
 113         VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState),
 114         VMSTATE_END_OF_LIST()
 115     }
 116 };
 117
 118 static void ehci_class_init(ObjectClass *klass, void *data)
 119 {
 120     DeviceClass *dc = DEVICE_CLASS(klass);
 121     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 122
 123     k->init = usb_ehci_pci_initfn;
 124     k->class_id = PCI_CLASS_SERIAL_USB;
 125     k->config_write = usb_ehci_pci_write_config;
 126     k->no_hotplug = 1;
 127     dc->vmsd = &vmstate_ehci_pci;
 128     dc->props = ehci_pci_properties;
 129 }
 130
 131 static const TypeInfo ehci_pci_type_info = {
 132     .name = TYPE_PCI_EHCI,
 133     .parent = TYPE_PCI_DEVICE,
 134     .instance_size = sizeof(EHCIPCIState),
 135     .instance_init = usb_ehci_pci_init,
 136     .abstract = true,
 137     .class_init = ehci_class_init,
 138 };
 139
 140 static void ehci_data_class_init(ObjectClass *klass, void *data)
 141 {
 142     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 143     DeviceClass *dc = DEVICE_CLASS(klass);
 144     EHCIPCIInfo *i = data;
 145
 146     k->vendor_id = i->vendor_id;
 147     k->device_id = i->device_id;
 148     k->revision = i->revision;
 149     set_bit(DEVICE_CATEGORY_USB, dc->categories);
 150 }
 151
 152 static struct EHCIPCIInfo ehci_pci_info[] = {
 153     {
 154         .name      = "usb-ehci",
 155         .vendor_id = PCI_VENDOR_ID_INTEL,
 156         .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */
 157         .revision  = 0x10,
 158     },{
 159         .name      = "ich9-usb-ehci1", /* 00:1d.7 */
 160         .vendor_id = PCI_VENDOR_ID_INTEL,
 161         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1,
 162         .revision  = 0x03,
 163     },{
 164         .name      = "ich9-usb-ehci2", /* 00:1a.7 */
 165         .vendor_id = PCI_VENDOR_ID_INTEL,
 166         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2,
 167         .revision  = 0x03,
 168     }
 169 };
 170
 171 static void ehci_pci_register_types(void)
 172 {
 173     TypeInfo ehci_type_info = {
 174         .parent        = TYPE_PCI_EHCI,
 175         .class_init    = ehci_data_class_init,
 176     };
 177     int i;
 178
 179     type_register_static(&ehci_pci_type_info);
 180
 181     for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) {
 182         ehci_type_info.name = ehci_pci_info[i].name;
 183         ehci_type_info.class_data = ehci_pci_info + i;
 184         type_register(&ehci_type_info);
 185     }
 186 }
 187
 188 type_init(ehci_pci_register_types)
 189
 190 struct ehci_companions {
 191     const char *name;
 192     int func;
 193     int port;
 194 };
 195
 196 static const struct ehci_companions ich9_1d[] = {
 197     { .name = "ich9-usb-uhci1", .func = 0, .port = 0 },
 198     { .name = "ich9-usb-uhci2", .func = 1, .port = 2 },
 199     { .name = "ich9-usb-uhci3", .func = 2, .port = 4 },
 200 };
 201
 202 static const struct ehci_companions ich9_1a[] = {
 203     { .name = "ich9-usb-uhci4", .func = 0, .port = 0 },
 204     { .name = "ich9-usb-uhci5", .func = 1, .port = 2 },
 205     { .name = "ich9-usb-uhci6", .func = 2, .port = 4 },
 206 };
 207
 208 int ehci_create_ich9_with_companions(PCIBus *bus, int slot)
 209 {
 210     const struct ehci_companions *comp;
 211     PCIDevice *ehci, *uhci;
 212     BusState *usbbus;
 213     const char *name;
 214     int i;
 215
 216     switch (slot) {
 217     case 0x1d:
 218         name = "ich9-usb-ehci1";
 219         comp = ich9_1d;
 220         break;
 221     case 0x1a:
 222         name = "ich9-usb-ehci2";
 223         comp = ich9_1a;
 224         break;
 225     default:
 226         return -1;
 227     }
 228
 229     ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name);
 230     qdev_init_nofail(&ehci->qdev);
 231     usbbus = QLIST_FIRST(&ehci->qdev.child_bus);
 232
 233     for (i = 0; i < 3; i++) {
 234         uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func),
 235                                         true, comp[i].name);
 236         qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name);
 237         qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port);
 238         qdev_init_nofail(&uhci->qdev);
 239     }
 240     return 0;
 241 }