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 bool companion; 27 } EHCIPCIInfo; 28 29 static int usb_ehci_pci_initfn(PCIDevice *dev) 30 { 31 EHCIPCIState *i = PCI_EHCI(dev); 32 EHCIState *s = &i->ehci; 33 uint8_t *pci_conf = dev->config; 34 35 pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20); 36 37 /* capabilities pointer */ 38 pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00); 39 /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */ 40 41 pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */ 42 pci_set_byte(&pci_conf[PCI_MIN_GNT], 0); 43 pci_set_byte(&pci_conf[PCI_MAX_LAT], 0); 44 45 /* pci_conf[0x50] = 0x01; *//* power management caps */ 46 47 pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */ 48 pci_set_byte(&pci_conf[0x61], 0x20); /* frame length adjustment (2.1.5) */ 49 pci_set_word(&pci_conf[0x62], 0x00); /* port wake up capability (2.1.6) */ 50 51 pci_conf[0x64] = 0x00; 52 pci_conf[0x65] = 0x00; 53 pci_conf[0x66] = 0x00; 54 pci_conf[0x67] = 0x00; 55 pci_conf[0x68] = 0x01; 56 pci_conf[0x69] = 0x00; 57 pci_conf[0x6a] = 0x00; 58 pci_conf[0x6b] = 0x00; /* USBLEGSUP */ 59 pci_conf[0x6c] = 0x00; 60 pci_conf[0x6d] = 0x00; 61 pci_conf[0x6e] = 0x00; 62 pci_conf[0x6f] = 0xc0; /* USBLEFCTLSTS */ 63 64 s->irq = pci_allocate_irq(dev); 65 s->as = pci_get_address_space(dev); 66 67 usb_ehci_realize(s, DEVICE(dev), NULL); 68 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem); 69 70 return 0; 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_exit(PCIDevice *dev) 94 { 95 EHCIPCIState *i = PCI_EHCI(dev); 96 EHCIState *s = &i->ehci; 97 98 usb_ehci_unrealize(s, DEVICE(dev), NULL); 99 100 if (s->irq) { 101 g_free(s->irq); 102 s->irq = NULL; 103 } 104 } 105 106 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr, 107 uint32_t val, int l) 108 { 109 EHCIPCIState *i = PCI_EHCI(dev); 110 bool busmaster; 111 112 pci_default_write_config(dev, addr, val, l); 113 114 if (!range_covers_byte(addr, l, PCI_COMMAND)) { 115 return; 116 } 117 busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER; 118 i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory; 119 } 120 121 static Property ehci_pci_properties[] = { 122 DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128), 123 DEFINE_PROP_END_OF_LIST(), 124 }; 125 126 static const VMStateDescription vmstate_ehci_pci = { 127 .name = "ehci", 128 .version_id = 2, 129 .minimum_version_id = 1, 130 .fields = (VMStateField[]) { 131 VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState), 132 VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState), 133 VMSTATE_END_OF_LIST() 134 } 135 }; 136 137 static void ehci_class_init(ObjectClass *klass, void *data) 138 { 139 DeviceClass *dc = DEVICE_CLASS(klass); 140 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 141 142 k->init = usb_ehci_pci_initfn; 143 k->exit = usb_ehci_pci_exit; 144 k->class_id = PCI_CLASS_SERIAL_USB; 145 k->config_write = usb_ehci_pci_write_config; 146 dc->vmsd = &vmstate_ehci_pci; 147 dc->props = ehci_pci_properties; 148 } 149 150 static const TypeInfo ehci_pci_type_info = { 151 .name = TYPE_PCI_EHCI, 152 .parent = TYPE_PCI_DEVICE, 153 .instance_size = sizeof(EHCIPCIState), 154 .instance_init = usb_ehci_pci_init, 155 .abstract = true, 156 .class_init = ehci_class_init, 157 }; 158 159 static void ehci_data_class_init(ObjectClass *klass, void *data) 160 { 161 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 162 DeviceClass *dc = DEVICE_CLASS(klass); 163 EHCIPCIInfo *i = data; 164 165 k->vendor_id = i->vendor_id; 166 k->device_id = i->device_id; 167 k->revision = i->revision; 168 set_bit(DEVICE_CATEGORY_USB, dc->categories); 169 if (i->companion) { 170 dc->hotpluggable = false; 171 } 172 } 173 174 static struct EHCIPCIInfo ehci_pci_info[] = { 175 { 176 .name = "usb-ehci", 177 .vendor_id = PCI_VENDOR_ID_INTEL, 178 .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */ 179 .revision = 0x10, 180 },{ 181 .name = "ich9-usb-ehci1", /* 00:1d.7 */ 182 .vendor_id = PCI_VENDOR_ID_INTEL, 183 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1, 184 .revision = 0x03, 185 .companion = true, 186 },{ 187 .name = "ich9-usb-ehci2", /* 00:1a.7 */ 188 .vendor_id = PCI_VENDOR_ID_INTEL, 189 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2, 190 .revision = 0x03, 191 .companion = true, 192 } 193 }; 194 195 static void ehci_pci_register_types(void) 196 { 197 TypeInfo ehci_type_info = { 198 .parent = TYPE_PCI_EHCI, 199 .class_init = ehci_data_class_init, 200 }; 201 int i; 202 203 type_register_static(&ehci_pci_type_info); 204 205 for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) { 206 ehci_type_info.name = ehci_pci_info[i].name; 207 ehci_type_info.class_data = ehci_pci_info + i; 208 type_register(&ehci_type_info); 209 } 210 } 211 212 type_init(ehci_pci_register_types) 213 214 struct ehci_companions { 215 const char *name; 216 int func; 217 int port; 218 }; 219 220 static const struct ehci_companions ich9_1d[] = { 221 { .name = "ich9-usb-uhci1", .func = 0, .port = 0 }, 222 { .name = "ich9-usb-uhci2", .func = 1, .port = 2 }, 223 { .name = "ich9-usb-uhci3", .func = 2, .port = 4 }, 224 }; 225 226 static const struct ehci_companions ich9_1a[] = { 227 { .name = "ich9-usb-uhci4", .func = 0, .port = 0 }, 228 { .name = "ich9-usb-uhci5", .func = 1, .port = 2 }, 229 { .name = "ich9-usb-uhci6", .func = 2, .port = 4 }, 230 }; 231 232 int ehci_create_ich9_with_companions(PCIBus *bus, int slot) 233 { 234 const struct ehci_companions *comp; 235 PCIDevice *ehci, *uhci; 236 BusState *usbbus; 237 const char *name; 238 int i; 239 240 switch (slot) { 241 case 0x1d: 242 name = "ich9-usb-ehci1"; 243 comp = ich9_1d; 244 break; 245 case 0x1a: 246 name = "ich9-usb-ehci2"; 247 comp = ich9_1a; 248 break; 249 default: 250 return -1; 251 } 252 253 ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name); 254 qdev_init_nofail(&ehci->qdev); 255 usbbus = QLIST_FIRST(&ehci->qdev.child_bus); 256 257 for (i = 0; i < 3; i++) { 258 uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func), 259 true, comp[i].name); 260 qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name); 261 qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port); 262 qdev_init_nofail(&uhci->qdev); 263 } 264 return 0; 265 } 266