/* * ide bus support for qdev. * * Copyright (c) 2009 Gerd Hoffmann * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include #include "dma.h" #include "qemu-error.h" #include #include "blockdev.h" #include "sysemu.h" /* --------------------------------- */ static char *idebus_get_fw_dev_path(DeviceState *dev); static struct BusInfo ide_bus_info = { .name = "IDE", .size = sizeof(IDEBus), .get_fw_dev_path = idebus_get_fw_dev_path, .props = (Property[]) { DEFINE_PROP_UINT32("unit", IDEDevice, unit, -1), DEFINE_PROP_END_OF_LIST(), }, }; void ide_bus_new(IDEBus *idebus, DeviceState *dev, int bus_id) { qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL); idebus->bus_id = bus_id; } static char *idebus_get_fw_dev_path(DeviceState *dev) { char path[30]; snprintf(path, sizeof(path), "%s@%d", qdev_fw_name(dev), ((IDEBus*)dev->parent_bus)->bus_id); return strdup(path); } static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base) { IDEDevice *dev = IDE_DEVICE(qdev); IDEDeviceClass *dc = IDE_DEVICE_GET_CLASS(dev); IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus); if (!dev->conf.bs) { error_report("No drive specified"); goto err; } if (dev->unit == -1) { dev->unit = bus->master ? 1 : 0; } switch (dev->unit) { case 0: if (bus->master) { error_report("IDE unit %d is in use", dev->unit); goto err; } bus->master = dev; break; case 1: if (bus->slave) { error_report("IDE unit %d is in use", dev->unit); goto err; } bus->slave = dev; break; default: error_report("Invalid IDE unit %d", dev->unit); goto err; } return dc->init(dev); err: return -1; } static void ide_qdev_register(DeviceInfo *info) { info->init = ide_qdev_init; info->bus_info = &ide_bus_info; qdev_register_subclass(info, TYPE_IDE_DEVICE); } IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive) { DeviceState *dev; dev = qdev_create(&bus->qbus, drive->media_cd ? "ide-cd" : "ide-hd"); qdev_prop_set_uint32(dev, "unit", unit); qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv); qdev_init_nofail(dev); return DO_UPCAST(IDEDevice, qdev, dev); } void ide_get_bs(BlockDriverState *bs[], BusState *qbus) { IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus); bs[0] = bus->master ? bus->master->conf.bs : NULL; bs[1] = bus->slave ? bus->slave->conf.bs : NULL; } /* --------------------------------- */ typedef struct IDEDrive { IDEDevice dev; } IDEDrive; static int ide_dev_initfn(IDEDevice *dev, IDEDriveKind kind) { IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); IDEState *s = bus->ifs + dev->unit; const char *serial; DriveInfo *dinfo; if (dev->conf.discard_granularity && dev->conf.discard_granularity != 512) { error_report("discard_granularity must be 512 for ide"); return -1; } serial = dev->serial; if (!serial) { /* try to fall back to value set with legacy -drive serial=... */ dinfo = drive_get_by_blockdev(dev->conf.bs); if (*dinfo->serial) { serial = dinfo->serial; } } if (ide_init_drive(s, dev->conf.bs, kind, dev->version, serial) < 0) { return -1; } if (!dev->version) { dev->version = g_strdup(s->version); } if (!dev->serial) { dev->serial = g_strdup(s->drive_serial_str); } add_boot_device_path(dev->conf.bootindex, &dev->qdev, dev->unit ? "/disk@1" : "/disk@0"); return 0; } static int ide_hd_initfn(IDEDevice *dev) { return ide_dev_initfn(dev, IDE_HD); } static int ide_cd_initfn(IDEDevice *dev) { return ide_dev_initfn(dev, IDE_CD); } static int ide_drive_initfn(IDEDevice *dev) { DriveInfo *dinfo = drive_get_by_blockdev(dev->conf.bs); return ide_dev_initfn(dev, dinfo->media_cd ? IDE_CD : IDE_HD); } #define DEFINE_IDE_DEV_PROPERTIES() \ DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), \ DEFINE_PROP_STRING("ver", IDEDrive, dev.version), \ DEFINE_PROP_STRING("serial", IDEDrive, dev.serial) static void ide_hd_class_init(ObjectClass *klass, void *data) { IDEDeviceClass *k = IDE_DEVICE_CLASS(klass); k->init = ide_hd_initfn; } static DeviceInfo ide_hd_info = { .name = "ide-hd", .fw_name = "drive", .desc = "virtual IDE disk", .size = sizeof(IDEDrive), .class_init = ide_hd_class_init, .props = (Property[]) { DEFINE_IDE_DEV_PROPERTIES(), DEFINE_PROP_END_OF_LIST(), } }; static void ide_cd_class_init(ObjectClass *klass, void *data) { IDEDeviceClass *k = IDE_DEVICE_CLASS(klass); k->init = ide_cd_initfn; } static DeviceInfo ide_cd_info = { .name = "ide-cd", .fw_name = "drive", .desc = "virtual IDE CD-ROM", .size = sizeof(IDEDrive), .class_init = ide_cd_class_init, .props = (Property[]) { DEFINE_IDE_DEV_PROPERTIES(), DEFINE_PROP_END_OF_LIST(), } }; static void ide_drive_class_init(ObjectClass *klass, void *data) { IDEDeviceClass *k = IDE_DEVICE_CLASS(klass); k->init = ide_drive_initfn; } static DeviceInfo ide_drive_info = { .name = "ide-drive", /* legacy -device ide-drive */ .fw_name = "drive", .desc = "virtual IDE disk or CD-ROM (legacy)", .size = sizeof(IDEDrive), .class_init = ide_drive_class_init, .props = (Property[]) { DEFINE_IDE_DEV_PROPERTIES(), DEFINE_PROP_END_OF_LIST(), } }; static TypeInfo ide_device_type_info = { .name = TYPE_IDE_DEVICE, .parent = TYPE_DEVICE, .instance_size = sizeof(IDEDevice), .abstract = true, .class_size = sizeof(IDEDeviceClass), }; static void ide_dev_register(void) { ide_qdev_register(&ide_hd_info); ide_qdev_register(&ide_cd_info); ide_qdev_register(&ide_drive_info); type_register_static(&ide_device_type_info); } device_init(ide_dev_register);