raw3270.c (a8931ef380c92d121ae74ecfb03b2d63f72eea6f) raw3270.c (23d805b647db6c2063a13089497615efa9deacdd)
1/*
2 * drivers/s390/char/raw3270.c
3 * IBM/3270 Driver - core functions.
4 *
5 * Author(s):
6 * Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
7 * Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
8 * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation

--- 358 unchanged lines hidden (view full) ---

367 rp = (struct raw3270 *) cdev->dev.driver_data;
368 if (!rp)
369 return;
370 rq = (struct raw3270_request *) intparm;
371 view = rq ? rq->view : rp->view;
372
373 if (IS_ERR(irb))
374 rc = RAW3270_IO_RETRY;
1/*
2 * drivers/s390/char/raw3270.c
3 * IBM/3270 Driver - core functions.
4 *
5 * Author(s):
6 * Original 3270 Code for 2.4 written by Richard Hitt (UTS Global)
7 * Rewritten for 2.5 by Martin Schwidefsky <schwidefsky@de.ibm.com>
8 * -- Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation

--- 358 unchanged lines hidden (view full) ---

367 rp = (struct raw3270 *) cdev->dev.driver_data;
368 if (!rp)
369 return;
370 rq = (struct raw3270_request *) intparm;
371 view = rq ? rq->view : rp->view;
372
373 if (IS_ERR(irb))
374 rc = RAW3270_IO_RETRY;
375 else if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) {
375 else if (irb->scsw.cmd.fctl & SCSW_FCTL_HALT_FUNC) {
376 rq->rc = -EIO;
377 rc = RAW3270_IO_DONE;
376 rq->rc = -EIO;
377 rc = RAW3270_IO_DONE;
378 } else if (irb->scsw.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END |
379 DEV_STAT_UNIT_EXCEP)) {
378 } else if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | DEV_STAT_DEV_END |
379 DEV_STAT_UNIT_EXCEP)) {
380 /* Handle CE-DE-UE and subsequent UDE */
381 set_bit(RAW3270_FLAGS_BUSY, &rp->flags);
382 rc = RAW3270_IO_BUSY;
383 } else if (test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) {
384 /* Wait for UDE if busy flag is set. */
380 /* Handle CE-DE-UE and subsequent UDE */
381 set_bit(RAW3270_FLAGS_BUSY, &rp->flags);
382 rc = RAW3270_IO_BUSY;
383 } else if (test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) {
384 /* Wait for UDE if busy flag is set. */
385 if (irb->scsw.dstat & DEV_STAT_DEV_END) {
385 if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) {
386 clear_bit(RAW3270_FLAGS_BUSY, &rp->flags);
387 /* Got it, now retry. */
388 rc = RAW3270_IO_RETRY;
389 } else
390 rc = RAW3270_IO_BUSY;
391 } else if (view)
392 rc = view->fn->intv(view, rq, irb);
393 else

--- 98 unchanged lines hidden (view full) ---

492static int
493raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
494 struct irb *irb)
495{
496 /*
497 * Unit-Check Processing:
498 * Expect Command Reject or Intervention Required.
499 */
386 clear_bit(RAW3270_FLAGS_BUSY, &rp->flags);
387 /* Got it, now retry. */
388 rc = RAW3270_IO_RETRY;
389 } else
390 rc = RAW3270_IO_BUSY;
391 } else if (view)
392 rc = view->fn->intv(view, rq, irb);
393 else

--- 98 unchanged lines hidden (view full) ---

492static int
493raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,
494 struct irb *irb)
495{
496 /*
497 * Unit-Check Processing:
498 * Expect Command Reject or Intervention Required.
499 */
500 if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) {
500 if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
501 /* Request finished abnormally. */
502 if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
503 set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
504 return RAW3270_IO_BUSY;
505 }
506 }
507 if (rq) {
501 /* Request finished abnormally. */
502 if (irb->ecw[0] & SNS0_INTERVENTION_REQ) {
503 set_bit(RAW3270_FLAGS_BUSY, &view->dev->flags);
504 return RAW3270_IO_BUSY;
505 }
506 }
507 if (rq) {
508 if (irb->scsw.dstat & DEV_STAT_UNIT_CHECK) {
508 if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) {
509 if (irb->ecw[0] & SNS0_CMD_REJECT)
510 rq->rc = -EOPNOTSUPP;
511 else
512 rq->rc = -EIO;
513 } else
514 /* Request finished normally. Copy residual count. */
509 if (irb->ecw[0] & SNS0_CMD_REJECT)
510 rq->rc = -EOPNOTSUPP;
511 else
512 rq->rc = -EIO;
513 } else
514 /* Request finished normally. Copy residual count. */
515 rq->rescnt = irb->scsw.count;
515 rq->rescnt = irb->scsw.cmd.count;
516 }
516 }
517 if (irb->scsw.dstat & DEV_STAT_ATTENTION) {
517 if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) {
518 set_bit(RAW3270_FLAGS_ATTN, &view->dev->flags);
519 wake_up(&raw3270_wait_queue);
520 }
521 return RAW3270_IO_DONE;
522}
523
524static struct raw3270_fn raw3270_init_fn = {
525 .intv = raw3270_init_irq

--- 904 unchanged lines hidden --- 		518 set_bit(RAW3270_FLAGS_ATTN, &view->dev->flags);
519 wake_up(&raw3270_wait_queue);
520 }
521 return RAW3270_IO_DONE;
522}
523
524static struct raw3270_fn raw3270_init_fn = {
525 .intv = raw3270_init_irq

--- 904 unchanged lines hidden ---