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->caps[0x09] = 0x68; /* EECP */ 64 65 s->irq = dev->irq[3]; 66 s->dma = pci_dma_context(dev); 67 68 s->capsbase = 0x00; 69 s->opregbase = 0x20; 70 71 usb_ehci_initfn(s, DEVICE(dev)); 72 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem); 73 74 return 0; 75 } 76 77 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr, 78 uint32_t val, int l) 79 { 80 EHCIPCIState *i = PCI_EHCI(dev); 81 bool busmaster; 82 83 pci_default_write_config(dev, addr, val, l); 84 85 if (!range_covers_byte(addr, l, PCI_COMMAND)) { 86 return; 87 } 88 busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER; 89 i->ehci.dma = busmaster ? pci_dma_context(dev) : NULL; 90 } 91 92 static Property ehci_pci_properties[] = { 93 DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128), 94 DEFINE_PROP_END_OF_LIST(), 95 }; 96 97 static const VMStateDescription vmstate_ehci_pci = { 98 .name = "ehci", 99 .version_id = 2, 100 .minimum_version_id = 1, 101 .fields = (VMStateField[]) { 102 VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState), 103 VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState), 104 VMSTATE_END_OF_LIST() 105 } 106 }; 107 108 static void ehci_class_init(ObjectClass *klass, void *data) 109 { 110 DeviceClass *dc = DEVICE_CLASS(klass); 111 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 112 113 k->init = usb_ehci_pci_initfn; 114 k->class_id = PCI_CLASS_SERIAL_USB; 115 k->config_write = usb_ehci_pci_write_config; 116 k->no_hotplug = 1; 117 dc->vmsd = &vmstate_ehci_pci; 118 dc->props = ehci_pci_properties; 119 } 120 121 static const TypeInfo ehci_pci_type_info = { 122 .name = TYPE_PCI_EHCI, 123 .parent = TYPE_PCI_DEVICE, 124 .instance_size = sizeof(EHCIPCIState), 125 .abstract = true, 126 .class_init = ehci_class_init, 127 }; 128 129 static void ehci_data_class_init(ObjectClass *klass, void *data) 130 { 131 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 132 EHCIPCIInfo *i = data; 133 134 k->vendor_id = i->vendor_id; 135 k->device_id = i->device_id; 136 k->revision = i->revision; 137 } 138 139 static struct EHCIPCIInfo ehci_pci_info[] = { 140 { 141 .name = "usb-ehci", 142 .vendor_id = PCI_VENDOR_ID_INTEL, 143 .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */ 144 .revision = 0x10, 145 },{ 146 .name = "ich9-usb-ehci1", /* 00:1d.7 */ 147 .vendor_id = PCI_VENDOR_ID_INTEL, 148 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1, 149 .revision = 0x03, 150 },{ 151 .name = "ich9-usb-ehci2", /* 00:1a.7 */ 152 .vendor_id = PCI_VENDOR_ID_INTEL, 153 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2, 154 .revision = 0x03, 155 } 156 }; 157 158 static void ehci_pci_register_types(void) 159 { 160 TypeInfo ehci_type_info = { 161 .parent = TYPE_PCI_EHCI, 162 .class_init = ehci_data_class_init, 163 }; 164 int i; 165 166 type_register_static(&ehci_pci_type_info); 167 168 for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) { 169 ehci_type_info.name = ehci_pci_info[i].name; 170 ehci_type_info.class_data = ehci_pci_info + i; 171 type_register(&ehci_type_info); 172 } 173 } 174 175 type_init(ehci_pci_register_types) 176 177 struct ehci_companions { 178 const char *name; 179 int func; 180 int port; 181 }; 182 183 static const struct ehci_companions ich9_1d[] = { 184 { .name = "ich9-usb-uhci1", .func = 0, .port = 0 }, 185 { .name = "ich9-usb-uhci2", .func = 1, .port = 2 }, 186 { .name = "ich9-usb-uhci3", .func = 2, .port = 4 }, 187 }; 188 189 static const struct ehci_companions ich9_1a[] = { 190 { .name = "ich9-usb-uhci4", .func = 0, .port = 0 }, 191 { .name = "ich9-usb-uhci5", .func = 1, .port = 2 }, 192 { .name = "ich9-usb-uhci6", .func = 2, .port = 4 }, 193 }; 194 195 int ehci_create_ich9_with_companions(PCIBus *bus, int slot) 196 { 197 const struct ehci_companions *comp; 198 PCIDevice *ehci, *uhci; 199 BusState *usbbus; 200 const char *name; 201 int i; 202 203 switch (slot) { 204 case 0x1d: 205 name = "ich9-usb-ehci1"; 206 comp = ich9_1d; 207 break; 208 case 0x1a: 209 name = "ich9-usb-ehci2"; 210 comp = ich9_1a; 211 break; 212 default: 213 return -1; 214 } 215 216 ehci = pci_create_multifunction(bus, PCI_DEVFN(slot, 7), true, name); 217 qdev_init_nofail(&ehci->qdev); 218 usbbus = QLIST_FIRST(&ehci->qdev.child_bus); 219 220 for (i = 0; i < 3; i++) { 221 uhci = pci_create_multifunction(bus, PCI_DEVFN(slot, comp[i].func), 222 true, comp[i].name); 223 qdev_prop_set_string(&uhci->qdev, "masterbus", usbbus->name); 224 qdev_prop_set_uint32(&uhci->qdev, "firstport", comp[i].port); 225 qdev_init_nofail(&uhci->qdev); 226 } 227 return 0; 228 } 229