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 #include "qom/object.h"
  20
  21 #define EMULATED_CCW_3270_CU_TYPE 0x3270
  22 #define EMULATED_CCW_3270_CHPID_TYPE 0x1a
  23
  24 #define TYPE_EMULATED_CCW_3270 "emulated-ccw-3270"
  25
  26 /* Local Channel Commands */
  27 #define TC_WRITE   0x01         /* Write */
  28 #define TC_RDBUF   0x02         /* Read buffer */
  29 #define TC_EWRITE  0x05         /* Erase write */
  30 #define TC_READMOD 0x06         /* Read modified */
  31 #define TC_EWRITEA 0x0d         /* Erase write alternate */
  32 #define TC_WRITESF 0x11         /* Write structured field */
  33
  34 OBJECT_DECLARE_TYPE(EmulatedCcw3270Device, EmulatedCcw3270Class, EMULATED_CCW_3270)
  35
  36 struct EmulatedCcw3270Device {
  37     CcwDevice parent_obj;
  38 };
  39
  40 struct EmulatedCcw3270Class {
  41     CCWDeviceClass parent_class;
  42
  43     void (*init)(EmulatedCcw3270Device *, Error **);
  44     int (*read_payload_3270)(EmulatedCcw3270Device *);
  45     int (*write_payload_3270)(EmulatedCcw3270Device *, uint8_t);
  46 };
  47
  48 #endif