diff options
Diffstat (limited to 'hw/ide/qdev.c')
| -rw-r--r-- | hw/ide/qdev.c | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c new file mode 100644 index 0000000..2bb5c27 --- /dev/null +++ b/hw/ide/qdev.c @@ -0,0 +1,172 @@ +/* + * ide bus support for qdev. + * + * Copyright (c) 2009 Gerd Hoffmann <kraxel@redhat.com> + * + * 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 <http://www.gnu.org/licenses/>. + */ +#include <hw/hw.h> +#include "dma.h" +#include "qemu-error.h" +#include <hw/ide/internal.h> +#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, +}; + +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 = DO_UPCAST(IDEDevice, qdev, qdev); + IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base); + 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 info->init(dev); + +err: + return -1; +} + +static void ide_qdev_register(IDEDeviceInfo *info) +{ + info->qdev.init = ide_qdev_init; + info->qdev.bus_info = &ide_bus_info; + qdev_register(&info->qdev); +} + +IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive) +{ + DeviceState *dev; + + dev = qdev_create(&bus->qbus, "ide-drive"); + 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_drive_initfn(IDEDevice *dev) +{ + IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus); + IDEState *s = bus->ifs + dev->unit; + const char *serial; + DriveInfo *dinfo; + + 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, dev->version, serial) < 0) { + return -1; + } + + if (!dev->version) { + dev->version = qemu_strdup(s->version); + } + if (!dev->serial) { + dev->serial = qemu_strdup(s->drive_serial_str); + } + + add_boot_device_path(dev->conf.bootindex, &dev->qdev, + dev->unit ? "/disk@1" : "/disk@0"); + + return 0; +} + +static IDEDeviceInfo ide_drive_info = { + .qdev.name = "ide-drive", + .qdev.fw_name = "drive", + .qdev.size = sizeof(IDEDrive), + .init = ide_drive_initfn, + .qdev.props = (Property[]) { + DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1), + DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf), + DEFINE_PROP_STRING("ver", IDEDrive, dev.version), + DEFINE_PROP_STRING("serial", IDEDrive, dev.serial), + DEFINE_PROP_END_OF_LIST(), + } +}; + +static void ide_drive_register(void) +{ + ide_qdev_register(&ide_drive_info); +} +device_init(ide_drive_register); |