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 2.1 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 Lesser General Public License
  15  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include "qemu/osdep.h"
  19 #include "hw/usb/hcd-ehci.h"
  20 #include "qemu/module.h"
  21 #include "qemu/range.h"
  22
  23 typedef struct EHCIPCIInfo {
  24     const char *name;
  25     uint16_t vendor_id;
  26     uint16_t device_id;
  27     uint8_t  revision;
  28     bool companion;
  29 } EHCIPCIInfo;
  30
  31 static void usb_ehci_pci_realize(PCIDevice *dev, Error **errp)
  32 {
  33     EHCIPCIState *i = PCI_EHCI(dev);
  34     EHCIState *s = &i->ehci;
  35     uint8_t *pci_conf = dev->config;
  36
  37     pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20);
  38
  39     /* capabilities pointer */
  40     pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00);
  41     /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */
  42
  43     pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */
  44     pci_set_byte(&pci_conf[PCI_MIN_GNT], 0);
  45     pci_set_byte(&pci_conf[PCI_MAX_LAT], 0);
  46
  47     /* pci_conf[0x50] = 0x01; *//* power management caps */
  48
  49     pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */
  50     pci_set_byte(&pci_conf[0x61], 0x20);  /* frame length adjustment (2.1.5) */
  51     pci_set_word(&pci_conf[0x62], 0x00);  /* port wake up capability (2.1.6) */
  52
  53     pci_conf[0x64] = 0x00;
  54     pci_conf[0x65] = 0x00;
  55     pci_conf[0x66] = 0x00;
  56     pci_conf[0x67] = 0x00;
  57     pci_conf[0x68] = 0x01;
  58     pci_conf[0x69] = 0x00;
  59     pci_conf[0x6a] = 0x00;
  60     pci_conf[0x6b] = 0x00;  /* USBLEGSUP */
  61     pci_conf[0x6c] = 0x00;
  62     pci_conf[0x6d] = 0x00;
  63     pci_conf[0x6e] = 0x00;
  64     pci_conf[0x6f] = 0xc0;  /* USBLEFCTLSTS */
  65
  66     s->irq = pci_allocate_irq(dev);
  67     s->as = pci_get_address_space(dev);
  68
  69     usb_ehci_realize(s, DEVICE(dev), NULL);
  70     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
  71 }
  72
  73 static void usb_ehci_pci_init(Object *obj)
  74 {
  75     DeviceClass *dc = OBJECT_GET_CLASS(DeviceClass, obj, TYPE_DEVICE);
  76     EHCIPCIState *i = PCI_EHCI(obj);
  77     EHCIState *s = &i->ehci;
  78
  79     s->caps[0x09] = 0x68;        /* EECP */
  80
  81     s->capsbase = 0x00;
  82     s->opregbase = 0x20;
  83     s->portscbase = 0x44;
  84     s->portnr = NB_PORTS;
  85
  86     if (!dc->hotpluggable) {
  87         s->companion_enable = true;
  88     }
  89
  90     usb_ehci_init(s, DEVICE(obj));
  91 }
  92
  93 static void usb_ehci_pci_finalize(Object *obj)
  94 {
  95     EHCIPCIState *i = PCI_EHCI(obj);
  96     EHCIState *s = &i->ehci;
  97
  98     usb_ehci_finalize(s);
  99 }
 100
 101 static void usb_ehci_pci_exit(PCIDevice *dev)
 102 {
 103     EHCIPCIState *i = PCI_EHCI(dev);
 104     EHCIState *s = &i->ehci;
 105
 106     usb_ehci_unrealize(s, DEVICE(dev), NULL);
 107
 108     g_free(s->irq);
 109     s->irq = NULL;
 110 }
 111
 112 static void usb_ehci_pci_reset(DeviceState *dev)
 113 {
 114     PCIDevice *pci_dev = PCI_DEVICE(dev);
 115     EHCIPCIState *i = PCI_EHCI(pci_dev);
 116     EHCIState *s = &i->ehci;
 117
 118     ehci_reset(s);
 119 }
 120
 121 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr,
 122                                       uint32_t val, int l)
 123 {
 124     EHCIPCIState *i = PCI_EHCI(dev);
 125     bool busmaster;
 126
 127     pci_default_write_config(dev, addr, val, l);
 128
 129     if (!range_covers_byte(addr, l, PCI_COMMAND)) {
 130         return;
 131     }
 132     busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER;
 133     i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory;
 134 }
 135
 136 static Property ehci_pci_properties[] = {
 137     DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128),
 138     DEFINE_PROP_END_OF_LIST(),
 139 };
 140
 141 static const VMStateDescription vmstate_ehci_pci = {
 142     .name        = "ehci",
 143     .version_id  = 2,
 144     .minimum_version_id  = 1,
 145     .fields = (VMStateField[]) {
 146         VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState),
 147         VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState),
 148         VMSTATE_END_OF_LIST()
 149     }
 150 };
 151
 152 static void ehci_class_init(ObjectClass *klass, void *data)
 153 {
 154     DeviceClass *dc = DEVICE_CLASS(klass);
 155     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 156
 157     k->realize = usb_ehci_pci_realize;
 158     k->exit = usb_ehci_pci_exit;
 159     k->class_id = PCI_CLASS_SERIAL_USB;
 160     k->config_write = usb_ehci_pci_write_config;
 161     dc->vmsd = &vmstate_ehci_pci;
 162     dc->props = ehci_pci_properties;
 163     dc->reset = usb_ehci_pci_reset;
 164 }
 165
 166 static const TypeInfo ehci_pci_type_info = {
 167     .name = TYPE_PCI_EHCI,
 168     .parent = TYPE_PCI_DEVICE,
 169     .instance_size = sizeof(EHCIPCIState),
 170     .instance_init = usb_ehci_pci_init,
 171     .instance_finalize = usb_ehci_pci_finalize,
 172     .abstract = true,
 173     .class_init = ehci_class_init,
 174     .interfaces = (InterfaceInfo[]) {
 175         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
 176         { },
 177     },
 178 };
 179
 180 static void ehci_data_class_init(ObjectClass *klass, void *data)
 181 {
 182     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 183     DeviceClass *dc = DEVICE_CLASS(klass);
 184     EHCIPCIInfo *i = data;
 185
 186     k->vendor_id = i->vendor_id;
 187     k->device_id = i->device_id;
 188     k->revision = i->revision;
 189     set_bit(DEVICE_CATEGORY_USB, dc->categories);
 190     if (i->companion) {
 191         dc->hotpluggable = false;
 192     }
 193 }
 194
 195 static struct EHCIPCIInfo ehci_pci_info[] = {
 196     {
 197         .name      = "usb-ehci",
 198         .vendor_id = PCI_VENDOR_ID_INTEL,
 199         .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */
 200         .revision  = 0x10,
 201     },{
 202         .name      = "ich9-usb-ehci1", /* 00:1d.7 */
 203         .vendor_id = PCI_VENDOR_ID_INTEL,
 204         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1,
 205         .revision  = 0x03,
 206         .companion = true,
 207     },{
 208         .name      = "ich9-usb-ehci2", /* 00:1a.7 */
 209         .vendor_id = PCI_VENDOR_ID_INTEL,
 210         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2,
 211         .revision  = 0x03,
 212         .companion = true,
 213     }
 214 };
 215
 216 static void ehci_pci_register_types(void)
 217 {
 218     TypeInfo ehci_type_info = {
 219         .parent        = TYPE_PCI_EHCI,
 220         .class_init    = ehci_data_class_init,
 221     };
 222     int i;
 223
 224     type_register_static(&ehci_pci_type_info);
 225
 226     for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) {
 227         ehci_type_info.name = ehci_pci_info[i].name;
 228         ehci_type_info.class_data = ehci_pci_info + i;
 229         type_register(&ehci_type_info);
 230     }
 231 }
 232
 233 type_init(ehci_pci_register_types)