1 /* 2 * QEMU IDE Emulation: ISA Bus support. 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * Copyright (c) 2006 Openedhand Ltd. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a copy 8 * of this software and associated documentation files (the "Software"), to deal 9 * in the Software without restriction, including without limitation the rights 10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 11 * copies of the Software, and to permit persons to whom the Software is 12 * furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 23 * THE SOFTWARE. 24 */ 25 26 #include "qemu/osdep.h" 27 #include "hw/isa/isa.h" 28 #include "hw/qdev-properties.h" 29 #include "migration/vmstate.h" 30 #include "qapi/error.h" 31 #include "qemu/module.h" 32 #include "sysemu/dma.h" 33 34 #include "hw/ide/isa.h" 35 #include "qom/object.h" 36 #include "ide-internal.h" 37 38 /***********************************************************/ 39 /* ISA IDE definitions */ 40 41 struct ISAIDEState { 42 ISADevice parent_obj; 43 44 IDEBus bus; 45 uint32_t iobase; 46 uint32_t iobase2; 47 uint32_t irqnum; 48 }; 49 50 static void isa_ide_reset(DeviceState *d) 51 { 52 ISAIDEState *s = ISA_IDE(d); 53 54 ide_bus_reset(&s->bus); 55 } 56 57 static const VMStateDescription vmstate_ide_isa = { 58 .name = "isa-ide", 59 .version_id = 3, 60 .minimum_version_id = 0, 61 .fields = (const VMStateField[]) { 62 VMSTATE_IDE_BUS(bus, ISAIDEState), 63 VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState), 64 VMSTATE_END_OF_LIST() 65 } 66 }; 67 68 static void isa_ide_realizefn(DeviceState *dev, Error **errp) 69 { 70 ISADevice *isadev = ISA_DEVICE(dev); 71 ISAIDEState *s = ISA_IDE(dev); 72 73 ide_bus_init(&s->bus, sizeof(s->bus), dev, 0, 2); 74 ide_init_ioport(&s->bus, isadev, s->iobase, s->iobase2); 75 ide_bus_init_output_irq(&s->bus, isa_get_irq(isadev, s->irqnum)); 76 vmstate_register_any(VMSTATE_IF(dev), &vmstate_ide_isa, s); 77 ide_bus_register_restart_cb(&s->bus); 78 } 79 80 ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int irqnum, 81 DriveInfo *hd0, DriveInfo *hd1) 82 { 83 DeviceState *dev; 84 ISADevice *isadev; 85 ISAIDEState *s; 86 87 isadev = isa_new(TYPE_ISA_IDE); 88 dev = DEVICE(isadev); 89 qdev_prop_set_uint32(dev, "iobase", iobase); 90 qdev_prop_set_uint32(dev, "iobase2", iobase2); 91 qdev_prop_set_uint32(dev, "irq", irqnum); 92 isa_realize_and_unref(isadev, bus, &error_fatal); 93 94 s = ISA_IDE(dev); 95 if (hd0) { 96 ide_bus_create_drive(&s->bus, 0, hd0); 97 } 98 if (hd1) { 99 ide_bus_create_drive(&s->bus, 1, hd1); 100 } 101 return isadev; 102 } 103 104 static Property isa_ide_properties[] = { 105 DEFINE_PROP_UINT32("iobase", ISAIDEState, iobase, 0x1f0), 106 DEFINE_PROP_UINT32("iobase2", ISAIDEState, iobase2, 0x3f6), 107 DEFINE_PROP_UINT32("irq", ISAIDEState, irqnum, 14), 108 DEFINE_PROP_END_OF_LIST(), 109 }; 110 111 static void isa_ide_class_initfn(ObjectClass *klass, void *data) 112 { 113 DeviceClass *dc = DEVICE_CLASS(klass); 114 115 dc->realize = isa_ide_realizefn; 116 dc->fw_name = "ide"; 117 dc->reset = isa_ide_reset; 118 device_class_set_props(dc, isa_ide_properties); 119 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 120 } 121 122 static const TypeInfo isa_ide_info = { 123 .name = TYPE_ISA_IDE, 124 .parent = TYPE_ISA_DEVICE, 125 .instance_size = sizeof(ISAIDEState), 126 .class_init = isa_ide_class_initfn, 127 }; 128 129 static void isa_ide_register_types(void) 130 { 131 type_register_static(&isa_ide_info); 132 } 133 134 type_init(isa_ide_register_types) 135