| 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/core/qdev-properties.h" |
| 20 | #include "hw/usb/hcd-ehci.h" |
| 21 | #include "migration/vmstate.h" |
| 22 | #include "qemu/module.h" |
| 23 | #include "qemu/range.h" |
| 24 | |
| 25 | typedef struct EHCIPCIInfo { |
| 26 | const char *name; |
| 27 | uint16_t vendor_id; |
| 28 | uint16_t device_id; |
| 29 | uint8_t revision; |
| 30 | bool companion; |
| 31 | } EHCIPCIInfo; |
| 32 | |
| 33 | static void usb_ehci_pci_realize(PCIDevice *dev, Error **errp) |
| 34 | { |
| 35 | EHCIPCIState *i = PCI_EHCI(dev); |
| 36 | EHCIState *s = &i->ehci; |
| 37 | uint8_t *pci_conf = dev->config; |
| 38 | |
| 39 | pci_set_byte(&pci_conf[PCI_CLASS_PROG], 0x20); |
| 40 | |
| 41 | /* capabilities pointer */ |
| 42 | pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x00); |
| 43 | /* pci_set_byte(&pci_conf[PCI_CAPABILITY_LIST], 0x50); */ |
| 44 | |
| 45 | pci_set_byte(&pci_conf[PCI_INTERRUPT_PIN], 4); /* interrupt pin D */ |
| 46 | pci_set_byte(&pci_conf[PCI_MIN_GNT], 0); |
| 47 | pci_set_byte(&pci_conf[PCI_MAX_LAT], 0); |
| 48 | |
| 49 | /* pci_conf[0x50] = 0x01; *//* power management caps */ |
| 50 | |
| 51 | pci_set_byte(&pci_conf[USB_SBRN], USB_RELEASE_2); /* release # (2.1.4) */ |
| 52 | pci_set_byte(&pci_conf[0x61], 0x20); /* frame length adjustment (2.1.5) */ |
| 53 | pci_set_word(&pci_conf[0x62], 0x00); /* port wake up capability (2.1.6) */ |
| 54 | |
| 55 | pci_conf[0x64] = 0x00; |
| 56 | pci_conf[0x65] = 0x00; |
| 57 | pci_conf[0x66] = 0x00; |
| 58 | pci_conf[0x67] = 0x00; |
| 59 | pci_conf[0x68] = 0x01; |
| 60 | pci_conf[0x69] = 0x00; |
| 61 | pci_conf[0x6a] = 0x00; |
| 62 | pci_conf[0x6b] = 0x00; /* USBLEGSUP */ |
| 63 | pci_conf[0x6c] = 0x00; |
| 64 | pci_conf[0x6d] = 0x00; |
| 65 | pci_conf[0x6e] = 0x00; |
| 66 | pci_conf[0x6f] = 0xc0; /* USBLEFCTLSTS */ |
| 67 | |
| 68 | s->irq = pci_allocate_irq(dev); |
| 69 | s->as = pci_get_address_space(dev); |
| 70 | |
| 71 | usb_ehci_realize(s, DEVICE(dev), NULL); |
| 72 | pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem); |
| 73 | } |
| 74 | |
| 75 | static void usb_ehci_pci_init(Object *obj) |
| 76 | { |
| 77 | DeviceClass *dc = DEVICE_GET_CLASS(obj); |
| 78 | EHCIPCIState *i = PCI_EHCI(obj); |
| 79 | EHCIState *s = &i->ehci; |
| 80 | |
| 81 | s->caps[0x09] = 0x68; /* EECP */ |
| 82 | |
| 83 | s->capsbase = 0x00; |
| 84 | s->opregbase = 0x20; |
| 85 | s->portscbase = 0x44; |
| 86 | s->portnr = EHCI_PORTS; |
| 87 | |
| 88 | if (!dc->hotpluggable) { |
| 89 | s->companion_enable = true; |
| 90 | } |
| 91 | |
| 92 | usb_ehci_init(s, DEVICE(obj)); |
| 93 | } |
| 94 | |
| 95 | static void usb_ehci_pci_finalize(Object *obj) |
| 96 | { |
| 97 | EHCIPCIState *i = PCI_EHCI(obj); |
| 98 | EHCIState *s = &i->ehci; |
| 99 | |
| 100 | usb_ehci_finalize(s); |
| 101 | } |
| 102 | |
| 103 | static void usb_ehci_pci_exit(PCIDevice *dev) |
| 104 | { |
| 105 | EHCIPCIState *i = PCI_EHCI(dev); |
| 106 | EHCIState *s = &i->ehci; |
| 107 | |
| 108 | usb_ehci_unrealize(s, DEVICE(dev)); |
| 109 | |
| 110 | g_free(s->irq); |
| 111 | s->irq = NULL; |
| 112 | } |
| 113 | |
| 114 | static void usb_ehci_pci_reset(DeviceState *dev) |
| 115 | { |
| 116 | PCIDevice *pci_dev = PCI_DEVICE(dev); |
| 117 | EHCIPCIState *i = PCI_EHCI(pci_dev); |
| 118 | EHCIState *s = &i->ehci; |
| 119 | |
| 120 | ehci_reset(s); |
| 121 | } |
| 122 | |
| 123 | static void usb_ehci_pci_write_config(PCIDevice *dev, uint32_t addr, |
| 124 | uint32_t val, int l) |
| 125 | { |
| 126 | EHCIPCIState *i = PCI_EHCI(dev); |
| 127 | bool busmaster; |
| 128 | |
| 129 | pci_default_write_config(dev, addr, val, l); |
| 130 | |
| 131 | if (!range_covers_byte(addr, l, PCI_COMMAND)) { |
| 132 | return; |
| 133 | } |
| 134 | busmaster = pci_get_word(dev->config + PCI_COMMAND) & PCI_COMMAND_MASTER; |
| 135 | i->ehci.as = busmaster ? pci_get_address_space(dev) : &address_space_memory; |
| 136 | } |
| 137 | |
| 138 | static const Property ehci_pci_properties[] = { |
| 139 | DEFINE_EHCI_COMMON_PROPERTIES(EHCIPCIState), |
| 140 | }; |
| 141 | |
| 142 | static const VMStateDescription vmstate_ehci_pci = { |
| 143 | .name = "ehci", |
| 144 | .version_id = 2, |
| 145 | .minimum_version_id = 1, |
| 146 | .fields = (const VMStateField[]) { |
| 147 | VMSTATE_PCI_DEVICE(pcidev, EHCIPCIState), |
| 148 | VMSTATE_STRUCT(ehci, EHCIPCIState, 2, vmstate_ehci, EHCIState), |
| 149 | VMSTATE_END_OF_LIST() |
| 150 | } |
| 151 | }; |
| 152 | |
| 153 | static void ehci_class_init(ObjectClass *klass, const void *data) |
| 154 | { |
| 155 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 156 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| 157 | |
| 158 | k->realize = usb_ehci_pci_realize; |
| 159 | k->exit = usb_ehci_pci_exit; |
| 160 | k->class_id = PCI_CLASS_SERIAL_USB; |
| 161 | k->config_write = usb_ehci_pci_write_config; |
| 162 | dc->vmsd = &vmstate_ehci_pci; |
| 163 | device_class_set_props(dc, ehci_pci_properties); |
| 164 | device_class_set_legacy_reset(dc, usb_ehci_pci_reset); |
| 165 | } |
| 166 | |
| 167 | static const TypeInfo ehci_pci_type_info = { |
| 168 | .name = TYPE_PCI_EHCI, |
| 169 | .parent = TYPE_PCI_DEVICE, |
| 170 | .instance_size = sizeof(EHCIPCIState), |
| 171 | .instance_init = usb_ehci_pci_init, |
| 172 | .instance_finalize = usb_ehci_pci_finalize, |
| 173 | .abstract = true, |
| 174 | .class_init = ehci_class_init, |
| 175 | .interfaces = (const InterfaceInfo[]) { |
| 176 | { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| 177 | { }, |
| 178 | }, |
| 179 | }; |
| 180 | |
| 181 | static void ehci_data_class_init(ObjectClass *klass, const void *data) |
| 182 | { |
| 183 | PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| 184 | DeviceClass *dc = DEVICE_CLASS(klass); |
| 185 | const EHCIPCIInfo *i = data; |
| 186 | |
| 187 | k->vendor_id = i->vendor_id; |
| 188 | k->device_id = i->device_id; |
| 189 | k->revision = i->revision; |
| 190 | set_bit(DEVICE_CATEGORY_USB, dc->categories); |
| 191 | if (i->companion) { |
| 192 | dc->hotpluggable = false; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | static struct EHCIPCIInfo ehci_pci_info[] = { |
| 197 | { |
| 198 | .name = "usb-ehci", |
| 199 | .vendor_id = PCI_VENDOR_ID_INTEL, |
| 200 | .device_id = PCI_DEVICE_ID_INTEL_82801D, /* ich4 */ |
| 201 | .revision = 0x10, |
| 202 | },{ |
| 203 | .name = "ich9-usb-ehci1", /* 00:1d.7 */ |
| 204 | .vendor_id = PCI_VENDOR_ID_INTEL, |
| 205 | .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI1, |
| 206 | .revision = 0x03, |
| 207 | .companion = true, |
| 208 | },{ |
| 209 | .name = "ich9-usb-ehci2", /* 00:1a.7 */ |
| 210 | .vendor_id = PCI_VENDOR_ID_INTEL, |
| 211 | .device_id = PCI_DEVICE_ID_INTEL_82801I_EHCI2, |
| 212 | .revision = 0x03, |
| 213 | .companion = true, |
| 214 | } |
| 215 | }; |
| 216 | |
| 217 | static void ehci_pci_register_types(void) |
| 218 | { |
| 219 | TypeInfo ehci_type_info = { |
| 220 | .parent = TYPE_PCI_EHCI, |
| 221 | .class_init = ehci_data_class_init, |
| 222 | }; |
| 223 | int i; |
| 224 | |
| 225 | type_register_static(&ehci_pci_type_info); |
| 226 | |
| 227 | for (i = 0; i < ARRAY_SIZE(ehci_pci_info); i++) { |
| 228 | ehci_type_info.name = ehci_pci_info[i].name; |
| 229 | ehci_type_info.class_data = ehci_pci_info + i; |
| 230 | type_register_static(&ehci_type_info); |
| 231 | } |
| 232 | } |
| 233 | |
| 234 | type_init(ehci_pci_register_types) |