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/usb/hcd-ehci.h" 20 #include "qemu/module.h" 21 #include "qemu/range.h" 22 23 typedef struct EHCIPCIInfo { 24 const char *name; 25 uint16_t vendor_id; 26 uint16_t device_id; 27 uint8_t revision; 28 bool companion; 29 } EHCIPCIInfo; 30 31 static void usb_ehci_pci_realize(PCIDevice *dev, Error **errp) 32 { 33 EHCIPCIState *i = PCI_EHCI(dev); 34 EHCIState *s = &i->ehci; 35 uint8_t *pci_conf = dev->config; 36 37 pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20); 38 39 /* capabilities pointer */ 40 pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00); 41 /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */ 42 43 pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */ 44 pci_set_byte(&pci_conf[PCI_MIN_GNT], 0); 45 pci_set_byte(&pci_conf[PCI_MAX_LAT], 0); 46 47 /* pci_conf[0x50] = 0x01; *//* power management caps */ 48 49 pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */ 50 pci_set_byte(&pci_conf[0x61], 0x20); /* frame length adjustment (2.1.5) */ 51 pci_set_word(&pci_conf[0x62], 0x00); /* port wake up capability (2.1.6) */ 52 53 pci_conf[0x64] = 0x00; 54 pci_conf[0x65] = 0x00; 55 pci_conf[0x66] = 0x00; 56 pci_conf[0x67] = 0x00; 57 pci_conf[0x68] = 0x01; 58 pci_conf[0x69] = 0x00; 59 pci_conf[0x6a] = 0x00; 60 pci_conf[0x6b] = 0x00; /* USBLEGSUP */ 61 pci_conf[0x6c] = 0x00; 62 pci_conf[0x6d] = 0x00; 63 pci_conf[0x6e] = 0x00; 64 pci_conf[0x6f] = 0xc0; /* USBLEFCTLSTS */ 65 66 s->irq = pci_allocate_irq(dev); 67 s->as = pci_get_address_space(dev); 68 69 usb_ehci_realize(s, DEVICE(dev), NULL); 70 pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem); 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_finalize(Object *obj) 94 { 95 EHCIPCIState *i = PCI_EHCI(obj); 96 EHCIState *s = &i->ehci; 97 98 usb_ehci_finalize(s); 99 } 100 101 static void usb_ehci_pci_exit(PCIDevice *dev) 102 { 103 EHCIPCIState *i = PCI_EHCI(dev); 104 EHCIState *s = &i->ehci; 105 106 usb_ehci_unrealize(s, DEVICE(dev), NULL); 107 108 g_free(s->irq); 109 s->irq = NULL; 110 } 111 112 static void usb_ehci_pci_reset(DeviceState *dev) 113 { 114 PCIDevice *pci_dev = PCI_DEVICE(dev); 115 EHCIPCIState *i = PCI_EHCI(pci_dev); 116 EHCIState *s = &i->ehci; 117 118 ehci_reset(s); 119 } 120 121 static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr, 122 uint32_t val, int l) 123 { 124 EHCIPCIState *i = PCI_EHCI(dev); 125 bool busmaster; 126 127 pci_default_write_config(dev, addr, val, l); 128 129 if (!range_covers_byte(addr, l, PCI_COMMAND)) { 130 return; 131 } 132 busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER; 133 i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory; 134 } 135 136 static Property ehci_pci_properties[] = { 137 DEFINE_PROP_UINT32("maxframes", EHCIPCIState, ehci.maxframes, 128), 138 DEFINE_PROP_END_OF_LIST(), 139 }; 140 141 static const VMStateDescription vmstate_ehci_pci = { 142 .name = "ehci", 143 .version_id = 2, 144 .minimum_version_id = 1, 145 .fields = (VMStateField[]) { 146 VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState), 147 VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState), 148 VMSTATE_END_OF_LIST() 149 } 150 }; 151 152 static void ehci_class_init(ObjectClass *klass, void *data) 153 { 154 DeviceClass *dc = DEVICE_CLASS(klass); 155 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 156 157 k->realize = usb_ehci_pci_realize; 158 k->exit = usb_ehci_pci_exit; 159 k->class_id = PCI_CLASS_SERIAL_USB; 160 k->config_write = usb_ehci_pci_write_config; 161 dc->vmsd = &vmstate_ehci_pci; 162 dc->props = ehci_pci_properties; 163 dc->reset = usb_ehci_pci_reset; 164 } 165 166 static const TypeInfo ehci_pci_type_info = { 167 .name = TYPE_PCI_EHCI, 168 .parent = TYPE_PCI_DEVICE, 169 .instance_size = sizeof(EHCIPCIState), 170 .instance_init = usb_ehci_pci_init, 171 .instance_finalize = usb_ehci_pci_finalize, 172 .abstract = true, 173 .class_init = ehci_class_init, 174 .interfaces = (InterfaceInfo[]) { 175 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 176 { }, 177 }, 178 }; 179 180 static void ehci_data_class_init(ObjectClass *klass, void *data) 181 { 182 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 183 DeviceClass *dc = DEVICE_CLASS(klass); 184 EHCIPCIInfo *i = data; 185 186 k->vendor_id = i->vendor_id; 187 k->device_id = i->device_id; 188 k->revision = i->revision; 189 set_bit(DEVICE_CATEGORY_USB, dc->categories); 190 if (i->companion) { 191 dc->hotpluggable = false; 192 } 193 } 194 195 static struct EHCIPCIInfo ehci_pci_info[] = { 196 { 197 .name = "usb-ehci", 198 .vendor_id = PCI_VENDOR_ID_INTEL, 199 .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */ 200 .revision = 0x10, 201 },{ 202 .name = "ich9-usb-ehci1", /* 00:1d.7 */ 203 .vendor_id = PCI_VENDOR_ID_INTEL, 204 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1, 205 .revision = 0x03, 206 .companion = true, 207 },{ 208 .name = "ich9-usb-ehci2", /* 00:1a.7 */ 209 .vendor_id = PCI_VENDOR_ID_INTEL, 210 .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2, 211 .revision = 0x03, 212 .companion = true, 213 } 214 }; 215 216 static void ehci_pci_register_types(void) 217 { 218 TypeInfo ehci_type_info = { 219 .parent = TYPE_PCI_EHCI, 220 .class_init = ehci_data_class_init, 221 }; 222 int i; 223 224 type_register_static(&ehci_pci_type_info); 225 226 for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) { 227 ehci_type_info.name = ehci_pci_info[i].name; 228 ehci_type_info.class_data = ehci_pci_info + i; 229 type_register(&ehci_type_info); 230 } 231 } 232 233 type_init(ehci_pci_register_types) 234