1 /* 2 * QEMU USB OHCI Emulation 3 * Copyright (c) 2004 Gianni Tedesco 4 * Copyright (c) 2006 CodeSourcery 5 * Copyright (c) 2006 Openedhand Ltd. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include "qemu/osdep.h" 22 #include "qapi/error.h" 23 #include "qemu/timer.h" 24 #include "hw/usb.h" 25 #include "migration/vmstate.h" 26 #include "hw/pci/pci_device.h" 27 #include "hw/sysbus.h" 28 #include "hw/qdev-dma.h" 29 #include "hw/qdev-properties.h" 30 #include "trace.h" 31 #include "hcd-ohci.h" 32 #include "qom/object.h" 33 34 #define TYPE_PCI_OHCI "pci-ohci" 35 OBJECT_DECLARE_SIMPLE_TYPE(OHCIPCIState, PCI_OHCI) 36 37 struct OHCIPCIState { 38 /*< private >*/ 39 PCIDevice parent_obj; 40 /*< public >*/ 41 42 OHCIState state; 43 char *masterbus; 44 uint32_t num_ports; 45 uint32_t firstport; 46 }; 47 48 /** 49 * A typical PCI OHCI will additionally set PERR in its configspace to 50 * signal that it got an error. 51 */ 52 static void ohci_pci_die(struct OHCIState *ohci) 53 { 54 OHCIPCIState *dev = container_of(ohci, OHCIPCIState, state); 55 56 ohci_sysbus_die(ohci); 57 58 pci_set_word(dev->parent_obj.config + PCI_STATUS, 59 PCI_STATUS_DETECTED_PARITY); 60 } 61 62 static void usb_ohci_realize_pci(PCIDevice *dev, Error **errp) 63 { 64 Error *err = NULL; 65 OHCIPCIState *ohci = PCI_OHCI(dev); 66 67 dev->config[PCI_CLASS_PROG] = 0x10; /* OHCI */ 68 dev->config[PCI_INTERRUPT_PIN] = 0x01; /* interrupt pin A */ 69 70 usb_ohci_init(&ohci->state, DEVICE(dev), ohci->num_ports, 0, 71 ohci->masterbus, ohci->firstport, 72 pci_get_address_space(dev), ohci_pci_die, &err); 73 if (err) { 74 error_propagate(errp, err); 75 return; 76 } 77 78 ohci->state.irq = pci_allocate_irq(dev); 79 pci_register_bar(dev, 0, 0, &ohci->state.mem); 80 } 81 82 static void usb_ohci_exit(PCIDevice *dev) 83 { 84 OHCIPCIState *ohci = PCI_OHCI(dev); 85 OHCIState *s = &ohci->state; 86 87 trace_usb_ohci_exit(s->name); 88 ohci_bus_stop(s); 89 90 if (s->async_td) { 91 usb_cancel_packet(&s->usb_packet); 92 s->async_td = 0; 93 } 94 ohci_stop_endpoints(s); 95 96 if (!ohci->masterbus) { 97 usb_bus_release(&s->bus); 98 } 99 100 timer_free(s->eof_timer); 101 } 102 103 static void usb_ohci_reset_pci(DeviceState *d) 104 { 105 PCIDevice *dev = PCI_DEVICE(d); 106 OHCIPCIState *ohci = PCI_OHCI(dev); 107 OHCIState *s = &ohci->state; 108 109 ohci_hard_reset(s); 110 } 111 112 static Property ohci_pci_properties[] = { 113 DEFINE_PROP_STRING("masterbus", OHCIPCIState, masterbus), 114 DEFINE_PROP_UINT32("num-ports", OHCIPCIState, num_ports, 3), 115 DEFINE_PROP_UINT32("firstport", OHCIPCIState, firstport, 0), 116 DEFINE_PROP_END_OF_LIST(), 117 }; 118 119 static const VMStateDescription vmstate_ohci = { 120 .name = "ohci", 121 .version_id = 1, 122 .minimum_version_id = 1, 123 .fields = (VMStateField[]) { 124 VMSTATE_PCI_DEVICE(parent_obj, OHCIPCIState), 125 VMSTATE_STRUCT(state, OHCIPCIState, 1, vmstate_ohci_state, OHCIState), 126 VMSTATE_END_OF_LIST() 127 } 128 }; 129 130 static void ohci_pci_class_init(ObjectClass *klass, void *data) 131 { 132 DeviceClass *dc = DEVICE_CLASS(klass); 133 PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); 134 135 k->realize = usb_ohci_realize_pci; 136 k->exit = usb_ohci_exit; 137 k->vendor_id = PCI_VENDOR_ID_APPLE; 138 k->device_id = PCI_DEVICE_ID_APPLE_IPID_USB; 139 k->class_id = PCI_CLASS_SERIAL_USB; 140 set_bit(DEVICE_CATEGORY_USB, dc->categories); 141 dc->desc = "Apple USB Controller"; 142 device_class_set_props(dc, ohci_pci_properties); 143 dc->hotpluggable = false; 144 dc->vmsd = &vmstate_ohci; 145 dc->reset = usb_ohci_reset_pci; 146 } 147 148 static const TypeInfo ohci_pci_info = { 149 .name = TYPE_PCI_OHCI, 150 .parent = TYPE_PCI_DEVICE, 151 .instance_size = sizeof(OHCIPCIState), 152 .class_init = ohci_pci_class_init, 153 .interfaces = (InterfaceInfo[]) { 154 { INTERFACE_CONVENTIONAL_PCI_DEVICE }, 155 { }, 156 }, 157 }; 158 159 static void ohci_pci_register_types(void) 160 { 161 type_register_static(&ohci_pci_info); 162 } 163 164 type_init(ohci_pci_register_types) 165