Lines Matching +full:x +full:- +full:rp
1 // SPDX-License-Identifier: GPL-2.0
3 * IBM/3270 Driver - core functions.
56 unsigned char *ascebc; /* ascii -> ebcdic table */
66 /* raw3270->state */
73 /* raw3270->flags */
74 #define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */
101 static void __raw3270_disconnect(struct raw3270 *rp);
117 static inline int raw3270_state_ready(struct raw3270 *rp) in raw3270_state_ready() argument
119 return rp->state == RAW3270_STATE_READY; in raw3270_state_ready()
122 void raw3270_buffer_address(struct raw3270 *rp, char *cp, int x, int y) in raw3270_buffer_address() argument
126 if (x < 0) in raw3270_buffer_address()
127 x = max_t(int, 0, rp->view->cols + x); in raw3270_buffer_address()
129 y = max_t(int, 0, rp->view->rows + y); in raw3270_buffer_address()
130 addr = (y * rp->view->cols) + x; in raw3270_buffer_address()
131 if (test_bit(RAW3270_FLAGS_14BITADDR, &rp->flags)) { in raw3270_buffer_address()
151 return ERR_PTR(-ENOMEM); in raw3270_request_alloc()
155 rq->buffer = kmalloc(size, GFP_KERNEL | GFP_DMA); in raw3270_request_alloc()
156 if (!rq->buffer) { in raw3270_request_alloc()
158 return ERR_PTR(-ENOMEM); in raw3270_request_alloc()
161 rq->size = size; in raw3270_request_alloc()
162 INIT_LIST_HEAD(&rq->list); in raw3270_request_alloc()
167 if (rq->buffer) in raw3270_request_alloc()
168 rq->ccw.cda = virt_to_dma32(rq->buffer); in raw3270_request_alloc()
169 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_alloc()
180 kfree(rq->buffer); in raw3270_request_free()
190 if (WARN_ON_ONCE(!list_empty(&rq->list))) in raw3270_request_reset()
191 return -EBUSY; in raw3270_request_reset()
192 rq->ccw.cmd_code = 0; in raw3270_request_reset()
193 rq->ccw.count = 0; in raw3270_request_reset()
194 if (rq->buffer) in raw3270_request_reset()
195 rq->ccw.cda = virt_to_dma32(rq->buffer); in raw3270_request_reset()
196 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_reset()
197 rq->rescnt = 0; in raw3270_request_reset()
198 rq->rc = 0; in raw3270_request_reset()
208 rq->ccw.cmd_code = cmd; in raw3270_request_set_cmd()
217 if (size + rq->ccw.count > rq->size) in raw3270_request_add_data()
218 return -E2BIG; in raw3270_request_add_data()
219 memcpy(rq->buffer + rq->ccw.count, data, size); in raw3270_request_add_data()
220 rq->ccw.count += size; in raw3270_request_add_data()
230 rq->ccw.cda = virt_to_dma32(data); in raw3270_request_set_data()
231 rq->ccw.count = size; in raw3270_request_set_data()
240 rq->ccw.cda = virt_to_dma32(ib->data); in raw3270_request_set_idal()
241 rq->ccw.count = ib->size; in raw3270_request_set_idal()
242 rq->ccw.flags |= CCW_FLAG_IDA; in raw3270_request_set_idal()
250 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view, in __raw3270_start() argument
253 rq->view = view; in __raw3270_start()
255 if (list_empty(&rp->req_queue) && in __raw3270_start()
256 !test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) { in __raw3270_start()
258 rq->rc = ccw_device_start(rp->cdev, &rq->ccw, in __raw3270_start()
260 if (rq->rc) { in __raw3270_start()
262 return rq->rc; in __raw3270_start()
265 list_add_tail(&rq->list, &rp->req_queue); in __raw3270_start()
271 struct raw3270 *rp = view->dev; in raw3270_view_active() local
273 return rp && rp->view == view; in raw3270_view_active()
279 struct raw3270 *rp; in raw3270_start() local
282 spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags); in raw3270_start()
283 rp = view->dev; in raw3270_start()
284 if (!rp || rp->view != view) in raw3270_start()
285 rc = -EACCES; in raw3270_start()
286 else if (!raw3270_state_ready(rp)) in raw3270_start()
287 rc = -EBUSY; in raw3270_start()
289 rc = __raw3270_start(rp, view, rq); in raw3270_start()
290 spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags); in raw3270_start()
313 struct raw3270 *rp; in raw3270_start_locked() local
316 rp = view->dev; in raw3270_start_locked()
317 if (!rp || rp->view != view) in raw3270_start_locked()
318 rc = -EACCES; in raw3270_start_locked()
319 else if (!raw3270_state_ready(rp)) in raw3270_start_locked()
320 rc = -EBUSY; in raw3270_start_locked()
322 rc = __raw3270_start(rp, view, rq); in raw3270_start_locked()
329 struct raw3270 *rp; in raw3270_start_irq() local
331 rp = view->dev; in raw3270_start_irq()
332 rq->view = view; in raw3270_start_irq()
334 list_add_tail(&rq->list, &rp->req_queue); in raw3270_start_irq()
344 struct raw3270 *rp; in raw3270_irq() local
348 rp = dev_get_drvdata(&cdev->dev); in raw3270_irq()
349 if (!rp) in raw3270_irq()
352 view = rq ? rq->view : rp->view; in raw3270_irq()
355 /* Handle CE-DE-UE and subsequent UDE */ in raw3270_irq()
356 if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) in raw3270_irq()
357 clear_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
358 if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | in raw3270_irq()
361 set_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
363 if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && in raw3270_irq()
364 (irb->ecw[0] & SNS0_INTERVENTION_REQ)) { in raw3270_irq()
365 set_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
366 if (rp->state > RAW3270_STATE_RESET) in raw3270_irq()
367 __raw3270_disconnect(rp); in raw3270_irq()
371 view->fn->intv(view, rq, irb); in raw3270_irq()
374 if (test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) in raw3270_irq()
378 if (rq && !list_empty(&rq->list)) { in raw3270_irq()
380 list_del_init(&rq->list); in raw3270_irq()
381 if (rq->callback) in raw3270_irq()
382 rq->callback(rq, rq->callback_data); in raw3270_irq()
391 while (!list_empty(&rp->req_queue)) { in raw3270_irq()
392 rq = list_entry(rp->req_queue.next, struct raw3270_request, list); in raw3270_irq()
393 rq->rc = ccw_device_start(rp->cdev, &rq->ccw, in raw3270_irq()
395 if (rq->rc == 0) in raw3270_irq()
398 list_del_init(&rq->list); in raw3270_irq()
399 if (rq->callback) in raw3270_irq()
400 rq->callback(rq, rq->callback_data); in raw3270_irq()
412 * required (3270 device switched to 'stand-by') and command
435 struct { /* Alternate Usable Area Self-Defining Parameter */
436 char l; /* Length of this Self-Defining Parm */
450 static void raw3270_size_device_vm(struct raw3270 *rp) in raw3270_size_device_vm() argument
457 ccw_device_get_id(rp->cdev, &dev_id); in raw3270_size_device_vm()
460 rp->model = 2; in raw3270_size_device_vm()
461 rp->rows = diag8c_data.height; in raw3270_size_device_vm()
462 rp->cols = diag8c_data.width; in raw3270_size_device_vm()
464 set_bit(RAW3270_FLAGS_14BITADDR, &rp->flags); in raw3270_size_device_vm()
477 rp->model = model; in raw3270_size_device_vm()
478 rp->rows = 24; in raw3270_size_device_vm()
479 rp->cols = 80; in raw3270_size_device_vm()
482 rp->model = model; in raw3270_size_device_vm()
483 rp->rows = 32; in raw3270_size_device_vm()
484 rp->cols = 80; in raw3270_size_device_vm()
487 rp->model = model; in raw3270_size_device_vm()
488 rp->rows = 43; in raw3270_size_device_vm()
489 rp->cols = 80; in raw3270_size_device_vm()
492 rp->model = model; in raw3270_size_device_vm()
493 rp->rows = 27; in raw3270_size_device_vm()
494 rp->cols = 132; in raw3270_size_device_vm()
499 static void raw3270_size_device(struct raw3270 *rp, char *init_data) in raw3270_size_device() argument
506 if (init_data[0] != 0x88 || uap->uab.qcode != 0x81) { in raw3270_size_device()
508 rp->model = 2; in raw3270_size_device()
509 rp->rows = 24; in raw3270_size_device()
510 rp->cols = 80; in raw3270_size_device()
514 rp->rows = uap->uab.h; in raw3270_size_device()
515 rp->cols = uap->uab.w; in raw3270_size_device()
517 if ((uap->uab.flags0 & 0x0d) == 0x01) in raw3270_size_device()
518 set_bit(RAW3270_FLAGS_14BITADDR, &rp->flags); in raw3270_size_device()
520 if (uap->uab.l == sizeof(struct raw3270_ua) && in raw3270_size_device()
521 uap->aua.sdpid == 0x02) { in raw3270_size_device()
522 rp->rows = uap->aua.hauai; in raw3270_size_device()
523 rp->cols = uap->aua.wauai; in raw3270_size_device()
526 rp->model = 0; in raw3270_size_device()
527 if (rp->rows == 24 && rp->cols == 80) in raw3270_size_device()
528 rp->model = 2; in raw3270_size_device()
529 if (rp->rows == 32 && rp->cols == 80) in raw3270_size_device()
530 rp->model = 3; in raw3270_size_device()
531 if (rp->rows == 43 && rp->cols == 80) in raw3270_size_device()
532 rp->model = 4; in raw3270_size_device()
533 if (rp->rows == 27 && rp->cols == 132) in raw3270_size_device()
534 rp->model = 5; in raw3270_size_device()
539 struct raw3270 *rp = container_of(work, struct raw3270, resize_work); in raw3270_resize_work() local
543 list_for_each_entry(view, &rp->view_list, list) { in raw3270_resize_work()
544 if (view->fn->resize) in raw3270_resize_work()
545 view->fn->resize(view, rp->model, rp->rows, rp->cols, in raw3270_resize_work()
546 rp->old_model, rp->old_rows, rp->old_cols); in raw3270_resize_work()
548 rp->old_cols = rp->cols; in raw3270_resize_work()
549 rp->old_rows = rp->rows; in raw3270_resize_work()
550 rp->old_model = rp->model; in raw3270_resize_work()
552 list_for_each_entry(view, &rp->view_list, list) { in raw3270_resize_work()
553 rp->view = view; in raw3270_resize_work()
554 if (view->fn->activate(view) == 0) in raw3270_resize_work()
556 rp->view = NULL; in raw3270_resize_work()
560 static void raw3270_size_device_done(struct raw3270 *rp) in raw3270_size_device_done() argument
562 rp->view = NULL; in raw3270_size_device_done()
563 rp->state = RAW3270_STATE_READY; in raw3270_size_device_done()
564 schedule_work(&rp->resize_work); in raw3270_size_device_done()
569 struct raw3270 *rp = rq->view->dev; in raw3270_read_modified_cb() local
571 raw3270_size_device(rp, data); in raw3270_read_modified_cb()
572 raw3270_size_device_done(rp); in raw3270_read_modified_cb()
576 static void raw3270_read_modified(struct raw3270 *rp) in raw3270_read_modified() argument
578 if (rp->state != RAW3270_STATE_W4ATTN) in raw3270_read_modified()
581 memset(&rp->init_readmod, 0, sizeof(rp->init_readmod)); in raw3270_read_modified()
582 memset(&rp->init_data, 0, sizeof(rp->init_data)); in raw3270_read_modified()
583 rp->init_readmod.ccw.cmd_code = TC_READMOD; in raw3270_read_modified()
584 rp->init_readmod.ccw.flags = CCW_FLAG_SLI; in raw3270_read_modified()
585 rp->init_readmod.ccw.count = sizeof(rp->init_data); in raw3270_read_modified()
586 rp->init_readmod.ccw.cda = virt_to_dma32(rp->init_data); in raw3270_read_modified()
587 rp->init_readmod.callback = raw3270_read_modified_cb; in raw3270_read_modified()
588 rp->init_readmod.callback_data = rp->init_data; in raw3270_read_modified()
589 rp->state = RAW3270_STATE_READMOD; in raw3270_read_modified()
590 raw3270_start_irq(&rp->init_view, &rp->init_readmod); in raw3270_read_modified()
593 static void raw3270_writesf_readpart(struct raw3270 *rp) in raw3270_writesf_readpart() argument
600 memset(&rp->init_readpart, 0, sizeof(rp->init_readpart)); in raw3270_writesf_readpart()
601 memset(&rp->init_data, 0, sizeof(rp->init_data)); in raw3270_writesf_readpart()
602 memcpy(&rp->init_data, wbuf, sizeof(wbuf)); in raw3270_writesf_readpart()
603 rp->init_readpart.ccw.cmd_code = TC_WRITESF; in raw3270_writesf_readpart()
604 rp->init_readpart.ccw.flags = CCW_FLAG_SLI; in raw3270_writesf_readpart()
605 rp->init_readpart.ccw.count = sizeof(wbuf); in raw3270_writesf_readpart()
606 rp->init_readpart.ccw.cda = virt_to_dma32(&rp->init_data); in raw3270_writesf_readpart()
607 rp->state = RAW3270_STATE_W4ATTN; in raw3270_writesf_readpart()
608 raw3270_start_irq(&rp->init_view, &rp->init_readpart); in raw3270_writesf_readpart()
616 struct raw3270 *rp = rq->view->dev; in raw3270_reset_device_cb() local
618 if (rp->state != RAW3270_STATE_RESET) in raw3270_reset_device_cb()
620 if (rq->rc) { in raw3270_reset_device_cb()
622 rp->state = RAW3270_STATE_INIT; in raw3270_reset_device_cb()
624 raw3270_size_device_vm(rp); in raw3270_reset_device_cb()
625 raw3270_size_device_done(rp); in raw3270_reset_device_cb()
627 raw3270_writesf_readpart(rp); in raw3270_reset_device_cb()
629 memset(&rp->init_reset, 0, sizeof(rp->init_reset)); in raw3270_reset_device_cb()
632 static int __raw3270_reset_device(struct raw3270 *rp) in __raw3270_reset_device() argument
637 if (rp->init_reset.view) in __raw3270_reset_device()
638 return -EBUSY; in __raw3270_reset_device()
640 rp->init_data[0] = TW_KR; in __raw3270_reset_device()
641 rp->init_reset.ccw.cmd_code = TC_EWRITEA; in __raw3270_reset_device()
642 rp->init_reset.ccw.flags = CCW_FLAG_SLI; in __raw3270_reset_device()
643 rp->init_reset.ccw.count = 1; in __raw3270_reset_device()
644 rp->init_reset.ccw.cda = virt_to_dma32(rp->init_data); in __raw3270_reset_device()
645 rp->init_reset.callback = raw3270_reset_device_cb; in __raw3270_reset_device()
646 rc = __raw3270_start(rp, &rp->init_view, &rp->init_reset); in __raw3270_reset_device()
647 if (rc == 0 && rp->state == RAW3270_STATE_INIT) in __raw3270_reset_device()
648 rp->state = RAW3270_STATE_RESET; in __raw3270_reset_device()
652 static int raw3270_reset_device(struct raw3270 *rp) in raw3270_reset_device() argument
657 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_reset_device()
658 rc = __raw3270_reset_device(rp); in raw3270_reset_device()
659 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_reset_device()
665 struct raw3270 *rp; in raw3270_reset() local
668 rp = view->dev; in raw3270_reset()
669 if (!rp || rp->view != view) in raw3270_reset()
670 rc = -EACCES; in raw3270_reset()
671 else if (!raw3270_state_ready(rp)) in raw3270_reset()
672 rc = -EBUSY; in raw3270_reset()
674 rc = raw3270_reset_device(view->dev); in raw3270_reset()
679 static void __raw3270_disconnect(struct raw3270 *rp) in __raw3270_disconnect() argument
684 rp->state = RAW3270_STATE_INIT; in __raw3270_disconnect()
685 rp->view = &rp->init_view; in __raw3270_disconnect()
687 while (!list_empty(&rp->req_queue)) { in __raw3270_disconnect()
688 rq = list_entry(rp->req_queue.next, struct raw3270_request, list); in __raw3270_disconnect()
689 view = rq->view; in __raw3270_disconnect()
690 rq->rc = -EACCES; in __raw3270_disconnect()
691 list_del_init(&rq->list); in __raw3270_disconnect()
692 if (rq->callback) in __raw3270_disconnect()
693 rq->callback(rq, rq->callback_data); in __raw3270_disconnect()
697 __raw3270_reset_device(rp); in __raw3270_disconnect()
703 struct raw3270 *rp; in raw3270_init_irq() local
706 if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { in raw3270_init_irq()
707 if (irb->ecw[0] & SNS0_CMD_REJECT) in raw3270_init_irq()
708 rq->rc = -EOPNOTSUPP; in raw3270_init_irq()
710 rq->rc = -EIO; in raw3270_init_irq()
713 if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { in raw3270_init_irq()
715 rp = view->dev; in raw3270_init_irq()
716 raw3270_read_modified(rp); in raw3270_init_irq()
727 static int raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, in raw3270_setup_device() argument
734 memset(rp, 0, sizeof(struct raw3270)); in raw3270_setup_device()
735 /* Copy ebcdic -> ascii translation table. */ in raw3270_setup_device()
743 rp->ascebc = ascebc; in raw3270_setup_device()
746 rp->rows = 24; in raw3270_setup_device()
747 rp->cols = 80; in raw3270_setup_device()
748 rp->old_rows = rp->rows; in raw3270_setup_device()
749 rp->old_cols = rp->cols; in raw3270_setup_device()
751 INIT_LIST_HEAD(&rp->req_queue); in raw3270_setup_device()
752 INIT_LIST_HEAD(&rp->view_list); in raw3270_setup_device()
754 rp->init_view.dev = rp; in raw3270_setup_device()
755 rp->init_view.fn = &raw3270_init_fn; in raw3270_setup_device()
756 rp->view = &rp->init_view; in raw3270_setup_device()
757 INIT_WORK(&rp->resize_work, raw3270_resize_work); in raw3270_setup_device()
767 rp->minor = -1; in raw3270_setup_device()
770 if (tmp->minor > minor) { in raw3270_setup_device()
771 rp->minor = minor; in raw3270_setup_device()
772 __list_add(&rp->list, l->prev, l); in raw3270_setup_device()
777 if (rp->minor == -1 && minor < RAW3270_MAXDEVS + RAW3270_FIRSTMINOR) { in raw3270_setup_device()
778 rp->minor = minor; in raw3270_setup_device()
779 list_add_tail(&rp->list, &raw3270_devices); in raw3270_setup_device()
783 if (rp->minor == -1) in raw3270_setup_device()
784 return -EUSERS; in raw3270_setup_device()
785 rp->cdev = cdev; in raw3270_setup_device()
786 dev_set_drvdata(&cdev->dev, rp); in raw3270_setup_device()
787 cdev->handler = raw3270_irq; in raw3270_setup_device()
792 /* Tentative definition - see below for actual definition. */
795 static inline int raw3270_state_final(struct raw3270 *rp) in raw3270_state_final() argument
797 return rp->state == RAW3270_STATE_INIT || in raw3270_state_final()
798 rp->state == RAW3270_STATE_READY; in raw3270_state_final()
808 struct raw3270 *rp; in raw3270_setup_console() local
816 rp = kzalloc(sizeof(*rp), GFP_KERNEL | GFP_DMA); in raw3270_setup_console()
818 rc = raw3270_setup_device(cdev, rp, ascebc); in raw3270_setup_console()
821 set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags); in raw3270_setup_console()
829 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_setup_console()
831 __raw3270_reset_device(rp); in raw3270_setup_console()
832 while (!raw3270_state_final(rp)) { in raw3270_setup_console()
833 ccw_device_wait_idle(rp->cdev); in raw3270_setup_console()
836 } while (rp->state != RAW3270_STATE_READY); in raw3270_setup_console()
837 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_setup_console()
838 return rp; in raw3270_setup_console()
841 void raw3270_wait_cons_dev(struct raw3270 *rp) in raw3270_wait_cons_dev() argument
845 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_wait_cons_dev()
846 ccw_device_wait_idle(rp->cdev); in raw3270_wait_cons_dev()
847 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_wait_cons_dev()
857 struct raw3270 *rp; in raw3270_create_device() local
861 rp = kzalloc(sizeof(*rp), GFP_KERNEL | GFP_DMA); in raw3270_create_device()
862 if (!rp) in raw3270_create_device()
863 return ERR_PTR(-ENOMEM); in raw3270_create_device()
866 kfree(rp); in raw3270_create_device()
867 return ERR_PTR(-ENOMEM); in raw3270_create_device()
869 rc = raw3270_setup_device(cdev, rp, ascebc); in raw3270_create_device()
871 kfree(rp->ascebc); in raw3270_create_device()
872 kfree(rp); in raw3270_create_device()
873 rp = ERR_PTR(rc); in raw3270_create_device()
876 get_device(&cdev->dev); in raw3270_create_device()
877 return rp; in raw3270_create_device()
886 struct raw3270 *rp = view->dev; in raw3270_view_lock_unavailable() local
888 if (!rp) in raw3270_view_lock_unavailable()
889 return -ENODEV; in raw3270_view_lock_unavailable()
890 if (spin_is_locked(get_ccwdev_lock(rp->cdev))) in raw3270_view_lock_unavailable()
891 return -EBUSY; in raw3270_view_lock_unavailable()
895 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view) in raw3270_assign_activate_view() argument
897 rp->view = view; in raw3270_assign_activate_view()
898 return view->fn->activate(view); in raw3270_assign_activate_view()
901 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view) in __raw3270_activate_view() argument
906 if (rp->view == view) in __raw3270_activate_view()
909 if (!raw3270_state_ready(rp)) in __raw3270_activate_view()
910 return -EBUSY; in __raw3270_activate_view()
912 if (rp->view && rp->view->fn->deactivate) { in __raw3270_activate_view()
913 oldview = rp->view; in __raw3270_activate_view()
914 oldview->fn->deactivate(oldview); in __raw3270_activate_view()
917 rc = raw3270_assign_activate_view(rp, view); in __raw3270_activate_view()
923 rc = raw3270_assign_activate_view(rp, oldview); in __raw3270_activate_view()
929 list_for_each_entry(nv, &rp->view_list, list) { in __raw3270_activate_view()
932 rc = raw3270_assign_activate_view(rp, nv); in __raw3270_activate_view()
935 rp->view = NULL; in __raw3270_activate_view()
945 struct raw3270 *rp; in raw3270_activate_view() local
949 rp = view->dev; in raw3270_activate_view()
950 if (!rp) in raw3270_activate_view()
951 return -ENODEV; in raw3270_activate_view()
952 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_activate_view()
953 rc = __raw3270_activate_view(rp, view); in raw3270_activate_view()
954 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_activate_view()
965 struct raw3270 *rp; in raw3270_deactivate_view() local
967 rp = view->dev; in raw3270_deactivate_view()
968 if (!rp) in raw3270_deactivate_view()
970 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_deactivate_view()
971 if (rp->view == view) { in raw3270_deactivate_view()
972 view->fn->deactivate(view); in raw3270_deactivate_view()
973 rp->view = NULL; in raw3270_deactivate_view()
975 list_del_init(&view->list); in raw3270_deactivate_view()
976 list_add_tail(&view->list, &rp->view_list); in raw3270_deactivate_view()
978 if (raw3270_state_ready(rp)) { in raw3270_deactivate_view()
979 list_for_each_entry(view, &rp->view_list, list) { in raw3270_deactivate_view()
980 rp->view = view; in raw3270_deactivate_view()
981 if (view->fn->activate(view) == 0) in raw3270_deactivate_view()
983 rp->view = NULL; in raw3270_deactivate_view()
987 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_deactivate_view()
998 struct raw3270 *rp; in raw3270_add_view() local
1002 return -ENODEV; in raw3270_add_view()
1004 rc = -ENODEV; in raw3270_add_view()
1005 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_add_view()
1006 if (rp->minor != minor) in raw3270_add_view()
1008 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_add_view()
1009 atomic_set(&view->ref_count, 2); in raw3270_add_view()
1010 view->dev = rp; in raw3270_add_view()
1011 view->fn = fn; in raw3270_add_view()
1012 view->model = rp->model; in raw3270_add_view()
1013 view->rows = rp->rows; in raw3270_add_view()
1014 view->cols = rp->cols; in raw3270_add_view()
1015 view->ascebc = rp->ascebc; in raw3270_add_view()
1016 spin_lock_init(&view->lock); in raw3270_add_view()
1017 lockdep_set_subclass(&view->lock, subclass); in raw3270_add_view()
1018 list_add(&view->list, &rp->view_list); in raw3270_add_view()
1020 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_add_view()
1033 struct raw3270 *rp; in raw3270_find_view() local
1038 view = ERR_PTR(-ENODEV); in raw3270_find_view()
1039 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_find_view()
1040 if (rp->minor != minor) in raw3270_find_view()
1042 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_find_view()
1043 list_for_each_entry(tmp, &rp->view_list, list) { in raw3270_find_view()
1044 if (tmp->fn == fn) { in raw3270_find_view()
1050 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_find_view()
1059 * Remove view from device and free view structure via call to view->fn->free.
1064 struct raw3270 *rp; in raw3270_del_view() local
1067 rp = view->dev; in raw3270_del_view()
1068 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_del_view()
1069 if (rp->view == view) { in raw3270_del_view()
1070 view->fn->deactivate(view); in raw3270_del_view()
1071 rp->view = NULL; in raw3270_del_view()
1073 list_del_init(&view->list); in raw3270_del_view()
1074 if (!rp->view && raw3270_state_ready(rp)) { in raw3270_del_view()
1076 list_for_each_entry(nv, &rp->view_list, list) { in raw3270_del_view()
1077 if (nv->fn->activate(nv) == 0) { in raw3270_del_view()
1078 rp->view = nv; in raw3270_del_view()
1083 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_del_view()
1085 atomic_dec(&view->ref_count); in raw3270_del_view()
1086 wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0); in raw3270_del_view()
1087 if (view->fn->free) in raw3270_del_view()
1088 view->fn->free(view); in raw3270_del_view()
1095 static void raw3270_delete_device(struct raw3270 *rp) in raw3270_delete_device() argument
1101 list_del_init(&rp->list); in raw3270_delete_device()
1105 cdev = rp->cdev; in raw3270_delete_device()
1106 rp->cdev = NULL; in raw3270_delete_device()
1107 dev_set_drvdata(&cdev->dev, NULL); in raw3270_delete_device()
1108 cdev->handler = NULL; in raw3270_delete_device()
1111 put_device(&cdev->dev); in raw3270_delete_device()
1114 kfree(rp->ascebc); in raw3270_delete_device()
1115 kfree(rp); in raw3270_delete_device()
1130 ((struct raw3270 *)dev_get_drvdata(dev))->model); in model_show()
1138 ((struct raw3270 *)dev_get_drvdata(dev))->rows); in rows_show()
1147 ((struct raw3270 *)dev_get_drvdata(dev))->cols); in columns_show()
1162 static int raw3270_create_attributes(struct raw3270 *rp) in raw3270_create_attributes() argument
1164 return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group); in raw3270_create_attributes()
1174 struct raw3270 *rp; in raw3270_register_notifier() local
1177 list_add_tail(¬ifier->list, &raw3270_notifier); in raw3270_register_notifier()
1178 list_for_each_entry(rp, &raw3270_devices, list) in raw3270_register_notifier()
1179 notifier->create(rp->minor); in raw3270_register_notifier()
1187 struct raw3270 *rp; in raw3270_unregister_notifier() local
1190 list_for_each_entry(rp, &raw3270_devices, list) in raw3270_unregister_notifier()
1191 notifier->destroy(rp->minor); in raw3270_unregister_notifier()
1192 list_del(¬ifier->list); in raw3270_unregister_notifier()
1203 struct raw3270 *rp; in raw3270_set_online() local
1206 rp = raw3270_create_device(cdev); in raw3270_set_online()
1207 if (IS_ERR(rp)) in raw3270_set_online()
1208 return PTR_ERR(rp); in raw3270_set_online()
1209 rc = raw3270_create_attributes(rp); in raw3270_set_online()
1212 raw3270_reset_device(rp); in raw3270_set_online()
1215 np->create(rp->minor); in raw3270_set_online()
1220 raw3270_delete_device(rp); in raw3270_set_online()
1230 struct raw3270 *rp; in raw3270_remove() local
1234 rp = dev_get_drvdata(&cdev->dev); in raw3270_remove()
1237 * should set up rp. raw3270_remove gets entered for in raw3270_remove()
1239 * Thus, rp may validly be NULL here. in raw3270_remove()
1241 if (!rp) in raw3270_remove()
1244 sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group); in raw3270_remove()
1248 if (rp->view) { in raw3270_remove()
1249 if (rp->view->fn->deactivate) in raw3270_remove()
1250 rp->view->fn->deactivate(rp->view); in raw3270_remove()
1251 rp->view = NULL; in raw3270_remove()
1253 while (!list_empty(&rp->view_list)) { in raw3270_remove()
1254 v = list_entry(rp->view_list.next, struct raw3270_view, list); in raw3270_remove()
1255 if (v->fn->release) in raw3270_remove()
1256 v->fn->release(v); in raw3270_remove()
1265 np->destroy(rp->minor); in raw3270_remove()
1269 raw3270_reset_device(rp); in raw3270_remove()
1271 raw3270_delete_device(rp); in raw3270_remove()
1279 struct raw3270 *rp; in raw3270_set_offline() local
1281 rp = dev_get_drvdata(&cdev->dev); in raw3270_set_offline()
1282 if (test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) in raw3270_set_offline()
1283 return -EBUSY; in raw3270_set_offline()
1318 struct raw3270 *rp; in raw3270_init() local
1332 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_init()
1333 get_device(&rp->cdev->dev); in raw3270_init()
1334 raw3270_create_attributes(rp); in raw3270_init()
1346 MODULE_DESCRIPTION("IBM/3270 Driver - core functions");