2  * Emulated ccw-attached 3270 implementation
9  * your option) any later version. See the COPYING file in the top-level
15 #include "qemu/module.h"
17 #include "hw/s390x/css-bridge.h"
18 #include "hw/qdev-properties.h"
19 #include "hw/s390x/3270-ccw.h"
28     if (!ccw->cda) {  in handle_payload_3270_read()
29         return -EFAULT;  in handle_payload_3270_read()
32     len = ck->read_payload_3270(dev);  in handle_payload_3270_read()
36     ccw_dev->sch->curr_status.scsw.count = ccw->count - len;  in handle_payload_3270_read()
48     if (!ccw->cda) {  in handle_payload_3270_write()
49         return -EFAULT;  in handle_payload_3270_write()
52     len = ck->write_payload_3270(dev, ccw->cmd_code);  in handle_payload_3270_write()
55         return len ? len : -EIO;  in handle_payload_3270_write()
58     ccw_dev->sch->curr_status.scsw.count = ccw->count - len;  in handle_payload_3270_write()
65     EmulatedCcw3270Device *dev = sch->driver_data;  in emulated_ccw_3270_cb()
79         rc = -ENOSYS;  in emulated_ccw_3270_cb()
83     if (rc == -EIO) {  in emulated_ccw_3270_cb()
85         SCHIB *schib = &sch->curr_status;  in emulated_ccw_3270_cb()
87         sch->curr_status.scsw.dstat = SCSW_DSTAT_UNIT_CHECK;  in emulated_ccw_3270_cb()
88         sch->sense_data[0] = 0x40;    /* intervention-req */  in emulated_ccw_3270_cb()
89         schib->scsw.ctrl &= ~SCSW_ACTL_START_PEND;  in emulated_ccw_3270_cb()
90         schib->scsw.ctrl &= ~SCSW_CTRL_MASK_STCTL;  in emulated_ccw_3270_cb()
91         schib->scsw.ctrl |= SCSW_STCTL_PRIMARY | SCSW_STCTL_SECONDARY |  in emulated_ccw_3270_cb()
108     sch = css_create_sch(cdev->devno, errp);  in emulated_ccw_3270_realize()
113     if (!ck->init) {  in emulated_ccw_3270_realize()
117     sch->driver_data = dev;  in emulated_ccw_3270_realize()
118     cdev->sch = sch;  in emulated_ccw_3270_realize()
119     chpid = css_find_free_chpid(sch->cssid);  in emulated_ccw_3270_realize()
126     sch->id.reserved = 0xff;  in emulated_ccw_3270_realize()
127     sch->id.cu_type = EMULATED_CCW_3270_CU_TYPE;  in emulated_ccw_3270_realize()
130     sch->do_subchannel_work = do_subchannel_work_virtual;  in emulated_ccw_3270_realize()
131     sch->ccw_cb = emulated_ccw_3270_cb;  in emulated_ccw_3270_realize()
132     sch->irb_cb = build_irb_virtual;  in emulated_ccw_3270_realize()
134     ck->init(dev, &err);  in emulated_ccw_3270_realize()
139     cdk->realize(cdev, &err);  in emulated_ccw_3270_realize()
148     css_subch_assign(sch->cssid, sch->ssid, sch->schid, sch->devno, NULL);  in emulated_ccw_3270_realize()
149     cdev->sch = NULL;  in emulated_ccw_3270_realize()
157     dc->realize = emulated_ccw_3270_realize;  in emulated_ccw_3270_class_init()
158     dc->hotpluggable = false;  in emulated_ccw_3270_class_init()
159     set_bit(DEVICE_CATEGORY_DISPLAY, dc->categories);  in emulated_ccw_3270_class_init()