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/*

 * virtio ccw target definitions

 *

 * Copyright 2012 IBM Corp.

 * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2 or (at

 * your option) any later version. See the COPYING file in the top-level

 * directory.

 */

#ifndef HW_S390X_VIRTIO_CCW_H

#define HW_S390X_VIRTIO_CCW_H

#include <hw/virtio/virtio-blk.h>

#include <hw/virtio/virtio-net.h>

#include <hw/virtio/virtio-serial.h>

#include <hw/virtio/virtio-scsi.h>

#ifdef CONFIG_VHOST_SCSI

#include <hw/virtio/vhost-scsi.h>

#endif

#include <hw/virtio/virtio-balloon.h>

#include <hw/virtio/virtio-rng.h>

#include <hw/virtio/virtio-bus.h>

#define VIRTUAL_CSSID 0xfe

#define VIRTIO_CCW_CU_TYPE 0x3832

#define VIRTIO_CCW_CHPID_TYPE 0x32

#define CCW_CMD_SET_VQ       0x13

#define CCW_CMD_VDEV_RESET   0x33

#define CCW_CMD_READ_FEAT    0x12

#define CCW_CMD_WRITE_FEAT   0x11

#define CCW_CMD_READ_CONF    0x22

#define CCW_CMD_WRITE_CONF   0x21

#define CCW_CMD_WRITE_STATUS 0x31

#define CCW_CMD_SET_IND      0x43

#define CCW_CMD_SET_CONF_IND 0x53

#define CCW_CMD_READ_VQ_CONF 0x32

#define TYPE_VIRTIO_CCW_DEVICE "virtio-ccw-device"

#define VIRTIO_CCW_DEVICE(obj) \

     OBJECT_CHECK(VirtioCcwDevice, (obj), TYPE_VIRTIO_CCW_DEVICE)

#define VIRTIO_CCW_DEVICE_CLASS(klass) \

     OBJECT_CLASS_CHECK(VirtIOCCWDeviceClass, (klass), TYPE_VIRTIO_CCW_DEVICE)

#define VIRTIO_CCW_DEVICE_GET_CLASS(obj) \

     OBJECT_GET_CLASS(VirtIOCCWDeviceClass, (obj), TYPE_VIRTIO_CCW_DEVICE)

typedef struct VirtioBusState VirtioCcwBusState;

typedef struct VirtioBusClass VirtioCcwBusClass;

#define TYPE_VIRTIO_CCW_BUS "virtio-ccw-bus"

#define VIRTIO_CCW_BUS(obj) \

     OBJECT_CHECK(VirtioCcwBus, (obj), TYPE_VIRTIO_CCW_BUS)

#define VIRTIO_CCW_BUS_GET_CLASS(obj) \

    OBJECT_CHECK(VirtioCcwBusState, (obj), TYPE_VIRTIO_CCW_BUS)

#define VIRTIO_CCW_BUS_CLASS(klass) \

    OBJECT_CLASS_CHECK(VirtioCcwBusClass, klass, TYPE_VIRTIO_CCW_BUS)

typedef struct VirtioCcwDevice VirtioCcwDevice;

typedef struct VirtIOCCWDeviceClass {

    DeviceClass parent_class;

    int (*init)(VirtioCcwDevice *dev);

    int (*exit)(VirtioCcwDevice *dev);

} VirtIOCCWDeviceClass;

/* Change here if we want to support more feature bits. */

#define VIRTIO_CCW_FEATURE_SIZE 1

/* Performance improves when virtqueue kick processing is decoupled from the

 * vcpu thread using ioeventfd for some devices. */

#define VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT 1

#define VIRTIO_CCW_FLAG_USE_IOEVENTFD   (1 << VIRTIO_CCW_FLAG_USE_IOEVENTFD_BIT)

struct VirtioCcwDevice {

    DeviceState parent_obj;

    SubchDev *sch;

    VirtIODevice *vdev;

    char *bus_id;

    uint32_t host_features[VIRTIO_CCW_FEATURE_SIZE];

    VirtioBusState bus;

    bool ioeventfd_started;

    bool ioeventfd_disabled;

    uint32_t flags;

    /* Guest provided values: */

    hwaddr indicators;

    hwaddr indicators2;

};

/* virtual css bus type */

typedef struct VirtualCssBus {

    BusState parent_obj;

} VirtualCssBus;

#define TYPE_VIRTUAL_CSS_BUS "virtual-css-bus"

#define VIRTUAL_CSS_BUS(obj) \

     OBJECT_CHECK(VirtualCssBus, (obj), TYPE_VIRTUAL_CSS_BUS)

/* virtio-scsi-ccw */

#define TYPE_VIRTIO_SCSI_CCW "virtio-scsi-ccw"

#define VIRTIO_SCSI_CCW(obj) \

        OBJECT_CHECK(VirtIOSCSICcw, (obj), TYPE_VIRTIO_SCSI_CCW)

typedef struct VirtIOSCSICcw {

    VirtioCcwDevice parent_obj;

    VirtIOSCSI vdev;

} VirtIOSCSICcw;

#ifdef CONFIG_VHOST_SCSI

/* vhost-scsi-ccw */

#define TYPE_VHOST_SCSI_CCW "vhost-scsi-ccw"

#define VHOST_SCSI_CCW(obj) \

        OBJECT_CHECK(VHostSCSICcw, (obj), TYPE_VHOST_SCSI_CCW)

typedef struct VHostSCSICcw {

    VirtioCcwDevice parent_obj;

    VHostSCSI vdev;

} VHostSCSICcw;

#endif

/* virtio-blk-ccw */

#define TYPE_VIRTIO_BLK_CCW "virtio-blk-ccw"

#define VIRTIO_BLK_CCW(obj) \

        OBJECT_CHECK(VirtIOBlkCcw, (obj), TYPE_VIRTIO_BLK_CCW)

typedef struct VirtIOBlkCcw {

    VirtioCcwDevice parent_obj;

    VirtIOBlock vdev;

    VirtIOBlkConf blk;

} VirtIOBlkCcw;

/* virtio-balloon-ccw */

#define TYPE_VIRTIO_BALLOON_CCW "virtio-balloon-ccw"

#define VIRTIO_BALLOON_CCW(obj) \

        OBJECT_CHECK(VirtIOBalloonCcw, (obj), TYPE_VIRTIO_BALLOON_CCW)

typedef struct VirtIOBalloonCcw {

    VirtioCcwDevice parent_obj;

    VirtIOBalloon vdev;

} VirtIOBalloonCcw;

/* virtio-serial-ccw */

#define TYPE_VIRTIO_SERIAL_CCW "virtio-serial-ccw"

#define VIRTIO_SERIAL_CCW(obj) \

        OBJECT_CHECK(VirtioSerialCcw, (obj), TYPE_VIRTIO_SERIAL_CCW)

typedef struct VirtioSerialCcw {

    VirtioCcwDevice parent_obj;

    VirtIOSerial vdev;

} VirtioSerialCcw;

/* virtio-net-ccw */

#define TYPE_VIRTIO_NET_CCW "virtio-net-ccw"

#define VIRTIO_NET_CCW(obj) \

        OBJECT_CHECK(VirtIONetCcw, (obj), TYPE_VIRTIO_NET_CCW)

typedef struct VirtIONetCcw {

    VirtioCcwDevice parent_obj;

    VirtIONet vdev;

} VirtIONetCcw;

/* virtio-rng-ccw */

#define TYPE_VIRTIO_RNG_CCW "virtio-rng-ccw"

#define VIRTIO_RNG_CCW(obj) \

        OBJECT_CHECK(VirtIORNGCcw, (obj), TYPE_VIRTIO_RNG_CCW)

typedef struct VirtIORNGCcw {

    VirtioCcwDevice parent_obj;

    VirtIORNG vdev;

} VirtIORNGCcw;

VirtualCssBus *virtual_css_bus_init(void);

void virtio_ccw_device_update_status(SubchDev *sch);

VirtIODevice *virtio_ccw_get_vdev(SubchDev *sch);

#endif