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 "hw/pci/pci.h" 20 #include "range.h" 21 22 typedef struct EHCIPCIState { 23 PCIDevice pcidev; 24 EHCIState ehci; 25 } EHCIPCIState; 26 27 typedef struct EHCIPCIInfo { 28 const char *name; 29 uint16_t vendor_id; 30 uint16_t device_id; 31 uint8_t revision; 32 } EHCIPCIInfo; 33 34 static int usb_ehci_pci_initfn(PCIDevice *dev) 35 { 36 EHCIPCIState *i = DO_UPCAST(EHCIPCIState, pcidev, dev); 37 EHCIState *s = &i->ehci; 38 uint8_t *pci_conf = dev->config; 39 40 pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20); 41 42 /* capabilities pointer */ 43 pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00); 44 /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */ 45 46 pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */ 47 pci_set_byte(&pci_conf[PCI_MIN_GNT], 0); 48 pci_set_byte(&pci_conf[PCI_MAX_LAT], 0); 49 50 /* pci_conf[0x50] = 0x01; *//* power management caps */ 51 52 pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */ 53 pci_set_byte(&pci_conf[0x61], 0x20); /* frame length adjustment (2.1.5) */ 54 pci_set_word(&pci_conf[0x62], 0x00); /* port wake up capability (2.1.6) */ 55 56 pci_conf[0x64] = 0x00; 57 pci_conf[0x65] = 0x00; 58 pci_conf[0x66] = 0x00; 59 pci_conf[0x67] = 0x00; 60 pci_conf[0x68] = 0x01; 61 pci_conf[0x69] = 0x00; 62 pci_conf[0x6a] = 0x00; 63 pci_conf[0x6b] = 0x00; /* USBLEGSUP */ 64 pci_conf[0x6c] = 0x00; 65 pci_conf[0x6d] = 0x00; 66 pci_conf[0x6e] = 0x00; 67 pci_conf[0x6f] = 0xc0; /* USBLEFCTLSTS */ 68 69 s->caps[0x09] = 0x68; /* EECP */ 70 71 s->irq = dev->irq[3]; 72 s->dma = pci_dma_context(dev); 73 74 s->capsbase = 0x00; 75 s->opregbase = 0x20; 76 77 usb_ehci_initfn(s, DEVICE(dev)); 78 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem); 79 80 return 0; 81 } 82 83 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr, 84 uint32_t val, int l) 85 { 86 EHCIPCIState *i = DO_UPCAST(EHCIPCIState, pcidev, dev); 87 bool busmaster; 88 89 pci_default_write_config(dev, addr, val, l); 90 91 if (!range_covers_byte(addr, l, PCI_COMMAND)) { 92 return; 93 } 94 busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER; 95 i->ehci.dma = busmaster ? pci_dma_context(dev) : NULL; 96 } 97 98 static Property ehci_pci_properties[] = { 99 DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128), 100 DEFINE_PROP_END_OF_LIST(), 101 }; 102 103 static const VMStateDescription vmstate_ehci_pci = { 104 .name = "ehci", 105 .version_id = 2, 106 .minimum_version_id = 1, 107 .fields = (VMStateField[]) { 108 VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState), 109 VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState), 110 VMSTATE_END_OF_LIST() 111 } 112 }; 113 114 static void ehci_class_init(ObjectClass *klass, void *data) 115 { 116 DeviceClass *dc = DEVICE_CLASS(klass); 117 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 118 EHCIPCIInfo *i = data; 119 120 k->init = usb_ehci_pci_initfn; 121 k->vendor_id = i->vendor_id; 122 k->device_id = i->device_id; 123 k->revision = i->revision; 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 struct EHCIPCIInfo ehci_pci_info[] = { 132 { 133 .name = "usb-ehci", 134 .vendor_id = PCI_VENDOR_ID_INTEL, 135 .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */ 136 .revision = 0x10, 137 },{ 138 .name = "ich9-usb-ehci1", /* 00:1d.7 */ 139 .vendor_id = PCI_VENDOR_ID_INTEL, 140 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1, 141 .revision = 0x03, 142 },{ 143 .name = "ich9-usb-ehci2", /* 00:1a.7 */ 144 .vendor_id = PCI_VENDOR_ID_INTEL, 145 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2, 146 .revision = 0x03, 147 } 148 }; 149 150 static void ehci_pci_register_types(void) 151 { 152 TypeInfo ehci_type_info = { 153 .parent = TYPE_PCI_DEVICE, 154 .instance_size = sizeof(EHCIPCIState), 155 .class_init = ehci_class_init, 156 }; 157 int i; 158 159 for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) { 160 ehci_type_info.name = ehci_pci_info[i].name; 161 ehci_type_info.class_data = ehci_pci_info + i; 162 type_register(&ehci_type_info); 163 } 164 } 165 166 type_init(ehci_pci_register_types) 167 168 struct ehci_companions { 169 const char *name; 170 int func; 171 int port; 172 }; 173 174 static const struct ehci_companions ich9_1d[] = { 175 { .name = "ich9-usb-uhci1", .func = 0, .port = 0 }, 176 { .name = "ich9-usb-uhci2", .func = 1, .port = 2 }, 177 { .name = "ich9-usb-uhci3", .func = 2, .port = 4 }, 178 }; 179 180 static const struct ehci_companions ich9_1a[] = { 181 { .name = "ich9-usb-uhci4", .func = 0, .port = 0 }, 182 { .name = "ich9-usb-uhci5", .func = 1, .port = 2 }, 183 { .name = "ich9-usb-uhci6", .func = 2, .port = 4 }, 184 }; 185 186 int ehci_create_ich9_with_companions(PCIBus *bus, int slot) 187 { 188 const struct ehci_companions *comp; 189 PCIDevice *ehci, *uhci; 190 BusState *usbbus; 191 const char *name; 192 int i; 193 194 switch (slot) { 195 case 0x1d: 196 name = "ich9-usb-ehci1"; 197 comp = ich9_1d; 198 break; 199 case 0x1a: 200 name = "ich9-usb-ehci2"; 201 comp = ich9_1a; 202 break; 203 default: 204 return -1; 205 } 206 207 ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name); 208 qdev_init_nofail(&ehci->qdev); 209 usbbus = QLIST_FIRST(&ehci->qdev.child_bus); 210 211 for (i = 0; i < 3; i++) { 212 uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func), 213 true, comp[i].name); 214 qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name); 215 qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port); 216 qdev_init_nofail(&uhci->qdev); 217 } 218 return 0; 219 } 220