LXR qemu/include/hw/s390x/3270-ccw.h

   1/*
   2 * Emulated ccw-attached 3270 definitions
   3 *
   4 * Copyright 2017 IBM Corp.
   5 * Author(s): Yang Chen <bjcyang@linux.vnet.ibm.com>
   6 *            Jing Liu <liujbjl@linux.vnet.ibm.com>
   7 *
   8 * This work is licensed under the terms of the GNU GPL, version 2 or (at
   9 * your option) any later version. See the COPYING file in the top-level
  10 * directory.
  11 */
  12
  13#ifndef HW_S390X_3270_CCW_H
  14#define HW_S390X_3270_CCW_H
  15
  16#include "hw/sysbus.h"
  17#include "hw/s390x/css.h"
  18#include "hw/s390x/ccw-device.h"
  19
  20#define EMULATED_CCW_3270_CU_TYPE 0x3270
  21#define EMULATED_CCW_3270_CHPID_TYPE 0x1a
  22
  23#define TYPE_EMULATED_CCW_3270 "emulated-ccw-3270"
  24
  25/* Local Channel Commands */
  26#define TC_WRITE   0x01         /* Write */
  27#define TC_RDBUF   0x02         /* Read buffer */
  28#define TC_EWRITE  0x05         /* Erase write */
  29#define TC_READMOD 0x06         /* Read modified */
  30#define TC_EWRITEA 0x0d         /* Erase write alternate */
  31#define TC_WRITESF 0x11         /* Write structured field */
  32
  33#define EMULATED_CCW_3270(obj) \
  34     OBJECT_CHECK(EmulatedCcw3270Device, (obj), TYPE_EMULATED_CCW_3270)
  35#define EMULATED_CCW_3270_CLASS(klass) \
  36     OBJECT_CLASS_CHECK(EmulatedCcw3270Class, (klass), TYPE_EMULATED_CCW_3270)
  37#define EMULATED_CCW_3270_GET_CLASS(obj) \
  38     OBJECT_GET_CLASS(EmulatedCcw3270Class, (obj), TYPE_EMULATED_CCW_3270)
  39
  40typedef struct EmulatedCcw3270Device {
  41    CcwDevice parent_obj;
  42} EmulatedCcw3270Device;
  43
  44typedef struct EmulatedCcw3270Class {
  45    CCWDeviceClass parent_class;
  46
  47    void (*init)(EmulatedCcw3270Device *, Error **);
  48    int (*read_payload_3270)(EmulatedCcw3270Device *);
  49    int (*write_payload_3270)(EmulatedCcw3270Device *, uint8_t);
  50} EmulatedCcw3270Class;
  51
  52#endif
  53