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/qdev-properties.h"
  20 #include "hw/usb/hcd-ehci.h"
  21 #include "migration/vmstate.h"
  22 #include "qemu/module.h"
  23 #include "qemu/range.h"
  24
  25 typedef struct EHCIPCIInfo {
  26     const char *name;
  27     uint16_t vendor_id;
  28     uint16_t device_id;
  29     uint8_t  revision;
  30     bool companion;
  31 } EHCIPCIInfo;
  32
  33 static void usb_ehci_pci_realize(PCIDevice *dev, Error **errp)
  34 {
  35     EHCIPCIState *i = PCI_EHCI(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->irq = pci_allocate_irq(dev);
  69     s->as = pci_get_address_space(dev);
  70
  71     usb_ehci_realize(s, DEVICE(dev), NULL);
  72     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
  73 }
  74
  75 static void usb_ehci_pci_init(Object *obj)
  76 {
  77     DeviceClass *dc = OBJECT_GET_CLASS(DeviceClass, obj, TYPE_DEVICE);
  78     EHCIPCIState *i = PCI_EHCI(obj);
  79     EHCIState *s = &i->ehci;
  80
  81     s->caps[0x09] = 0x68;        /* EECP */
  82
  83     s->capsbase = 0x00;
  84     s->opregbase = 0x20;
  85     s->portscbase = 0x44;
  86     s->portnr = NB_PORTS;
  87
  88     if (!dc->hotpluggable) {
  89         s->companion_enable = true;
  90     }
  91
  92     usb_ehci_init(s, DEVICE(obj));
  93 }
  94
  95 static void usb_ehci_pci_finalize(Object *obj)
  96 {
  97     EHCIPCIState *i = PCI_EHCI(obj);
  98     EHCIState *s = &i->ehci;
  99
 100     usb_ehci_finalize(s);
 101 }
 102
 103 static void usb_ehci_pci_exit(PCIDevice *dev)
 104 {
 105     EHCIPCIState *i = PCI_EHCI(dev);
 106     EHCIState *s = &i->ehci;
 107
 108     usb_ehci_unrealize(s, DEVICE(dev), NULL);
 109
 110     g_free(s->irq);
 111     s->irq = NULL;
 112 }
 113
 114 static void usb_ehci_pci_reset(DeviceState *dev)
 115 {
 116     PCIDevice *pci_dev = PCI_DEVICE(dev);
 117     EHCIPCIState *i = PCI_EHCI(pci_dev);
 118     EHCIState *s = &i->ehci;
 119
 120     ehci_reset(s);
 121 }
 122
 123 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr,
 124                                       uint32_t val, int l)
 125 {
 126     EHCIPCIState *i = PCI_EHCI(dev);
 127     bool busmaster;
 128
 129     pci_default_write_config(dev, addr, val, l);
 130
 131     if (!range_covers_byte(addr, l, PCI_COMMAND)) {
 132         return;
 133     }
 134     busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER;
 135     i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory;
 136 }
 137
 138 static Property ehci_pci_properties[] = {
 139     DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128),
 140     DEFINE_PROP_END_OF_LIST(),
 141 };
 142
 143 static const VMStateDescription vmstate_ehci_pci = {
 144     .name        = "ehci",
 145     .version_id  = 2,
 146     .minimum_version_id  = 1,
 147     .fields = (VMStateField[]) {
 148         VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState),
 149         VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState),
 150         VMSTATE_END_OF_LIST()
 151     }
 152 };
 153
 154 static void ehci_class_init(ObjectClass *klass, void *data)
 155 {
 156     DeviceClass *dc = DEVICE_CLASS(klass);
 157     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 158
 159     k->realize = usb_ehci_pci_realize;
 160     k->exit = usb_ehci_pci_exit;
 161     k->class_id = PCI_CLASS_SERIAL_USB;
 162     k->config_write = usb_ehci_pci_write_config;
 163     dc->vmsd = &vmstate_ehci_pci;
 164     device_class_set_props(dc, ehci_pci_properties);
 165     dc->reset = usb_ehci_pci_reset;
 166 }
 167
 168 static const TypeInfo ehci_pci_type_info = {
 169     .name = TYPE_PCI_EHCI,
 170     .parent = TYPE_PCI_DEVICE,
 171     .instance_size = sizeof(EHCIPCIState),
 172     .instance_init = usb_ehci_pci_init,
 173     .instance_finalize = usb_ehci_pci_finalize,
 174     .abstract = true,
 175     .class_init = ehci_class_init,
 176     .interfaces = (InterfaceInfo[]) {
 177         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
 178         { },
 179     },
 180 };
 181
 182 static void ehci_data_class_init(ObjectClass *klass, void *data)
 183 {
 184     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
 185     DeviceClass *dc = DEVICE_CLASS(klass);
 186     EHCIPCIInfo *i = data;
 187
 188     k->vendor_id = i->vendor_id;
 189     k->device_id = i->device_id;
 190     k->revision = i->revision;
 191     set_bit(DEVICE_CATEGORY_USB, dc->categories);
 192     if (i->companion) {
 193         dc->hotpluggable = false;
 194     }
 195 }
 196
 197 static struct EHCIPCIInfo ehci_pci_info[] = {
 198     {
 199         .name      = "usb-ehci",
 200         .vendor_id = PCI_VENDOR_ID_INTEL,
 201         .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */
 202         .revision  = 0x10,
 203     },{
 204         .name      = "ich9-usb-ehci1", /* 00:1d.7 */
 205         .vendor_id = PCI_VENDOR_ID_INTEL,
 206         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1,
 207         .revision  = 0x03,
 208         .companion = true,
 209     },{
 210         .name      = "ich9-usb-ehci2", /* 00:1a.7 */
 211         .vendor_id = PCI_VENDOR_ID_INTEL,
 212         .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2,
 213         .revision  = 0x03,
 214         .companion = true,
 215     }
 216 };
 217
 218 static void ehci_pci_register_types(void)
 219 {
 220     TypeInfo ehci_type_info = {
 221         .parent        = TYPE_PCI_EHCI,
 222         .class_init    = ehci_data_class_init,
 223     };
 224     int i;
 225
 226     type_register_static(&ehci_pci_type_info);
 227
 228     for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) {
 229         ehci_type_info.name = ehci_pci_info[i].name;
 230         ehci_type_info.class_data = ehci_pci_info + i;
 231         type_register(&ehci_type_info);
 232     }
 233 }
 234
 235 type_init(ehci_pci_register_types)