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 #include "qemu/osdep.h" 26 #include <hw/hw.h> 27 #include <hw/i386/pc.h> 28 #include <hw/isa/isa.h> 29 #include "sysemu/block-backend.h" 30 #include "sysemu/dma.h" 31 32 #include <hw/ide/internal.h> 33 34 /***********************************************************/ 35 /* ISA IDE definitions */ 36 37 #define TYPE_ISA_IDE "isa-ide" 38 #define ISA_IDE(obj) OBJECT_CHECK(ISAIDEState, (obj), TYPE_ISA_IDE) 39 40 typedef struct ISAIDEState { 41 ISADevice parent_obj; 42 43 IDEBus bus; 44 uint32_t iobase; 45 uint32_t iobase2; 46 uint32_t isairq; 47 qemu_irq irq; 48 } ISAIDEState; 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 = (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_new(&s->bus, sizeof(s->bus), dev, 0, 2); 74 ide_init_ioport(&s->bus, isadev, s->iobase, s->iobase2); 75 isa_init_irq(isadev, &s->irq, s->isairq); 76 ide_init2(&s->bus, s->irq); 77 vmstate_register(dev, 0, &vmstate_ide_isa, s); 78 ide_register_restart_cb(&s->bus); 79 } 80 81 ISADevice *isa_ide_init(ISABus *bus, int iobase, int iobase2, int isairq, 82 DriveInfo *hd0, DriveInfo *hd1) 83 { 84 DeviceState *dev; 85 ISADevice *isadev; 86 ISAIDEState *s; 87 88 isadev = isa_create(bus, TYPE_ISA_IDE); 89 dev = DEVICE(isadev); 90 qdev_prop_set_uint32(dev, "iobase", iobase); 91 qdev_prop_set_uint32(dev, "iobase2", iobase2); 92 qdev_prop_set_uint32(dev, "irq", isairq); 93 qdev_init_nofail(dev); 94 95 s = ISA_IDE(dev); 96 if (hd0) { 97 ide_create_drive(&s->bus, 0, hd0); 98 } 99 if (hd1) { 100 ide_create_drive(&s->bus, 1, hd1); 101 } 102 return isadev; 103 } 104 105 static Property isa_ide_properties[] = { 106 DEFINE_PROP_UINT32("iobase", ISAIDEState, iobase, 0x1f0), 107 DEFINE_PROP_UINT32("iobase2", ISAIDEState, iobase2, 0x3f6), 108 DEFINE_PROP_UINT32("irq", ISAIDEState, isairq, 14), 109 DEFINE_PROP_END_OF_LIST(), 110 }; 111 112 static void isa_ide_class_initfn(ObjectClass *klass, void *data) 113 { 114 DeviceClass *dc = DEVICE_CLASS(klass); 115 116 dc->realize = isa_ide_realizefn; 117 dc->fw_name = "ide"; 118 dc->reset = isa_ide_reset; 119 dc->props = isa_ide_properties; 120 set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); 121 } 122 123 static const TypeInfo isa_ide_info = { 124 .name = TYPE_ISA_IDE, 125 .parent = TYPE_ISA_DEVICE, 126 .instance_size = sizeof(ISAIDEState), 127 .class_init = isa_ide_class_initfn, 128 }; 129 130 static void isa_ide_register_types(void) 131 { 132 type_register_static(&isa_ide_info); 133 } 134 135 type_init(isa_ide_register_types) 136