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 = pci_allocate_irq(dev); 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 dc->hotpluggable = false; 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 } 242