Annotation of qemu/hw/ide/isa.c, revision 1.1

1.1     ! root        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 <hw/hw.h>
        !            26: #include <hw/pc.h>
        !            27: #include <hw/isa.h>
        !            28: #include "block.h"
        !            29: #include "block_int.h"
        !            30: #include "sysemu.h"
        !            31: #include "dma.h"
        !            32: 
        !            33: #include <hw/ide/internal.h>
        !            34: 
        !            35: /***********************************************************/
        !            36: /* ISA IDE definitions */
        !            37: 
        !            38: typedef struct ISAIDEState {
        !            39:     ISADevice dev;
        !            40:     IDEBus    bus;
        !            41:     uint32_t  iobase;
        !            42:     uint32_t  iobase2;
        !            43:     uint32_t  isairq;
        !            44:     qemu_irq  irq;
        !            45: } ISAIDEState;
        !            46: 
        !            47: static void isa_ide_reset(DeviceState *d)
        !            48: {
        !            49:     ISAIDEState *s = container_of(d, ISAIDEState, dev.qdev);
        !            50: 
        !            51:     ide_bus_reset(&s->bus);
        !            52: }
        !            53: 
        !            54: static const VMStateDescription vmstate_ide_isa = {
        !            55:     .name = "isa-ide",
        !            56:     .version_id = 3,
        !            57:     .minimum_version_id = 0,
        !            58:     .minimum_version_id_old = 0,
        !            59:     .fields      = (VMStateField []) {
        !            60:         VMSTATE_IDE_BUS(bus, ISAIDEState),
        !            61:         VMSTATE_IDE_DRIVES(bus.ifs, ISAIDEState),
        !            62:         VMSTATE_END_OF_LIST()
        !            63:     }
        !            64: };
        !            65: 
        !            66: static int isa_ide_initfn(ISADevice *dev)
        !            67: {
        !            68:     ISAIDEState *s = DO_UPCAST(ISAIDEState, dev, dev);
        !            69: 
        !            70:     ide_bus_new(&s->bus, &s->dev.qdev);
        !            71:     ide_init_ioport(&s->bus, s->iobase, s->iobase2);
        !            72:     isa_init_irq(dev, &s->irq, s->isairq);
        !            73:     ide_init2(&s->bus, NULL, NULL, s->irq);
        !            74:     vmstate_register(0, &vmstate_ide_isa, s);
        !            75:     return 0;
        !            76: };
        !            77: 
        !            78: int isa_ide_init(int iobase, int iobase2, int isairq,
        !            79:                  DriveInfo *hd0, DriveInfo *hd1)
        !            80: {
        !            81:     ISADevice *dev;
        !            82:     ISAIDEState *s;
        !            83: 
        !            84:     dev = isa_create("isa-ide");
        !            85:     qdev_prop_set_uint32(&dev->qdev, "iobase",  iobase);
        !            86:     qdev_prop_set_uint32(&dev->qdev, "iobase2", iobase2);
        !            87:     qdev_prop_set_uint32(&dev->qdev, "irq",     isairq);
        !            88:     if (qdev_init(&dev->qdev) < 0)
        !            89:         return -1;
        !            90: 
        !            91:     s = DO_UPCAST(ISAIDEState, dev, dev);
        !            92:     if (hd0)
        !            93:         ide_create_drive(&s->bus, 0, hd0);
        !            94:     if (hd1)
        !            95:         ide_create_drive(&s->bus, 1, hd1);
        !            96:     return 0;
        !            97: }
        !            98: 
        !            99: static ISADeviceInfo isa_ide_info = {
        !           100:     .qdev.name  = "isa-ide",
        !           101:     .qdev.size  = sizeof(ISAIDEState),
        !           102:     .init       = isa_ide_initfn,
        !           103:     .qdev.reset = isa_ide_reset,
        !           104:     .qdev.props = (Property[]) {
        !           105:         DEFINE_PROP_HEX32("iobase",  ISAIDEState, iobase,  0x1f0),
        !           106:         DEFINE_PROP_HEX32("iobase2", ISAIDEState, iobase2, 0x3f6),
        !           107:         DEFINE_PROP_UINT32("irq",    ISAIDEState, isairq,  14),
        !           108:         DEFINE_PROP_END_OF_LIST(),
        !           109:     },
        !           110: };
        !           111: 
        !           112: static void isa_ide_register_devices(void)
        !           113: {
        !           114:     isa_qdev_register(&isa_ide_info);
        !           115: }
        !           116: 
        !           117: device_init(isa_ide_register_devices)

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