Lines Matching +full:x +full:- +full:rp
1 // SPDX-License-Identifier: GPL-2.0
3 * IBM/3270 Driver - core functions.
52 unsigned char *ascebc; /* ascii -> ebcdic table */
62 /* raw3270->state */
69 /* raw3270->flags */
70 #define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */
97 static void __raw3270_disconnect(struct raw3270 *rp);
113 static inline int raw3270_state_ready(struct raw3270 *rp) in raw3270_state_ready() argument
115 return rp->state == RAW3270_STATE_READY; in raw3270_state_ready()
118 void raw3270_buffer_address(struct raw3270 *rp, char *cp, int x, int y) in raw3270_buffer_address() argument
122 if (x < 0) in raw3270_buffer_address()
123 x = max_t(int, 0, rp->view->cols + x); in raw3270_buffer_address()
125 y = max_t(int, 0, rp->view->rows + y); in raw3270_buffer_address()
126 addr = (y * rp->view->cols) + x; in raw3270_buffer_address()
127 if (test_bit(RAW3270_FLAGS_14BITADDR, &rp->flags)) { in raw3270_buffer_address()
147 return ERR_PTR(-ENOMEM); in raw3270_request_alloc()
151 rq->buffer = kmalloc(size, GFP_KERNEL | GFP_DMA); in raw3270_request_alloc()
152 if (!rq->buffer) { in raw3270_request_alloc()
154 return ERR_PTR(-ENOMEM); in raw3270_request_alloc()
157 rq->size = size; in raw3270_request_alloc()
158 INIT_LIST_HEAD(&rq->list); in raw3270_request_alloc()
163 rq->ccw.cda = __pa(rq->buffer); in raw3270_request_alloc()
164 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_alloc()
175 kfree(rq->buffer); in raw3270_request_free()
185 if (WARN_ON_ONCE(!list_empty(&rq->list))) in raw3270_request_reset()
186 return -EBUSY; in raw3270_request_reset()
187 rq->ccw.cmd_code = 0; in raw3270_request_reset()
188 rq->ccw.count = 0; in raw3270_request_reset()
189 rq->ccw.cda = __pa(rq->buffer); in raw3270_request_reset()
190 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_reset()
191 rq->rescnt = 0; in raw3270_request_reset()
192 rq->rc = 0; in raw3270_request_reset()
202 rq->ccw.cmd_code = cmd; in raw3270_request_set_cmd()
211 if (size + rq->ccw.count > rq->size) in raw3270_request_add_data()
212 return -E2BIG; in raw3270_request_add_data()
213 memcpy(rq->buffer + rq->ccw.count, data, size); in raw3270_request_add_data()
214 rq->ccw.count += size; in raw3270_request_add_data()
224 rq->ccw.cda = __pa(data); in raw3270_request_set_data()
225 rq->ccw.count = size; in raw3270_request_set_data()
234 rq->ccw.cda = __pa(ib->data); in raw3270_request_set_idal()
235 rq->ccw.count = ib->size; in raw3270_request_set_idal()
236 rq->ccw.flags |= CCW_FLAG_IDA; in raw3270_request_set_idal()
244 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view, in __raw3270_start() argument
247 rq->view = view; in __raw3270_start()
249 if (list_empty(&rp->req_queue) && in __raw3270_start()
250 !test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) { in __raw3270_start()
252 rq->rc = ccw_device_start(rp->cdev, &rq->ccw, in __raw3270_start()
254 if (rq->rc) { in __raw3270_start()
256 return rq->rc; in __raw3270_start()
259 list_add_tail(&rq->list, &rp->req_queue); in __raw3270_start()
265 struct raw3270 *rp = view->dev; in raw3270_view_active() local
267 return rp && rp->view == view; in raw3270_view_active()
273 struct raw3270 *rp; in raw3270_start() local
276 spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags); in raw3270_start()
277 rp = view->dev; in raw3270_start()
278 if (!rp || rp->view != view) in raw3270_start()
279 rc = -EACCES; in raw3270_start()
280 else if (!raw3270_state_ready(rp)) in raw3270_start()
281 rc = -EBUSY; in raw3270_start()
283 rc = __raw3270_start(rp, view, rq); in raw3270_start()
284 spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags); in raw3270_start()
307 struct raw3270 *rp; in raw3270_start_locked() local
310 rp = view->dev; in raw3270_start_locked()
311 if (!rp || rp->view != view) in raw3270_start_locked()
312 rc = -EACCES; in raw3270_start_locked()
313 else if (!raw3270_state_ready(rp)) in raw3270_start_locked()
314 rc = -EBUSY; in raw3270_start_locked()
316 rc = __raw3270_start(rp, view, rq); in raw3270_start_locked()
323 struct raw3270 *rp; in raw3270_start_irq() local
325 rp = view->dev; in raw3270_start_irq()
326 rq->view = view; in raw3270_start_irq()
328 list_add_tail(&rq->list, &rp->req_queue); in raw3270_start_irq()
338 struct raw3270 *rp; in raw3270_irq() local
342 rp = dev_get_drvdata(&cdev->dev); in raw3270_irq()
343 if (!rp) in raw3270_irq()
346 view = rq ? rq->view : rp->view; in raw3270_irq()
349 /* Handle CE-DE-UE and subsequent UDE */ in raw3270_irq()
350 if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) in raw3270_irq()
351 clear_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
352 if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | in raw3270_irq()
355 set_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
357 if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && in raw3270_irq()
358 (irb->ecw[0] & SNS0_INTERVENTION_REQ)) { in raw3270_irq()
359 set_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
360 if (rp->state > RAW3270_STATE_RESET) in raw3270_irq()
361 __raw3270_disconnect(rp); in raw3270_irq()
365 view->fn->intv(view, rq, irb); in raw3270_irq()
368 if (test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) in raw3270_irq()
372 if (rq && !list_empty(&rq->list)) { in raw3270_irq()
374 list_del_init(&rq->list); in raw3270_irq()
375 if (rq->callback) in raw3270_irq()
376 rq->callback(rq, rq->callback_data); in raw3270_irq()
385 while (!list_empty(&rp->req_queue)) { in raw3270_irq()
386 rq = list_entry(rp->req_queue.next, struct raw3270_request, list); in raw3270_irq()
387 rq->rc = ccw_device_start(rp->cdev, &rq->ccw, in raw3270_irq()
389 if (rq->rc == 0) in raw3270_irq()
392 list_del_init(&rq->list); in raw3270_irq()
393 if (rq->callback) in raw3270_irq()
394 rq->callback(rq, rq->callback_data); in raw3270_irq()
406 * required (3270 device switched to 'stand-by') and command
429 struct { /* Alternate Usable Area Self-Defining Parameter */
430 char l; /* Length of this Self-Defining Parm */
444 static void raw3270_size_device_vm(struct raw3270 *rp) in raw3270_size_device_vm() argument
451 ccw_device_get_id(rp->cdev, &dev_id); in raw3270_size_device_vm()
454 rp->model = 2; in raw3270_size_device_vm()
455 rp->rows = diag8c_data.height; in raw3270_size_device_vm()
456 rp->cols = diag8c_data.width; in raw3270_size_device_vm()
458 set_bit(RAW3270_FLAGS_14BITADDR, &rp->flags); in raw3270_size_device_vm()
471 rp->model = model; in raw3270_size_device_vm()
472 rp->rows = 24; in raw3270_size_device_vm()
473 rp->cols = 80; in raw3270_size_device_vm()
476 rp->model = model; in raw3270_size_device_vm()
477 rp->rows = 32; in raw3270_size_device_vm()
478 rp->cols = 80; in raw3270_size_device_vm()
481 rp->model = model; in raw3270_size_device_vm()
482 rp->rows = 43; in raw3270_size_device_vm()
483 rp->cols = 80; in raw3270_size_device_vm()
486 rp->model = model; in raw3270_size_device_vm()
487 rp->rows = 27; in raw3270_size_device_vm()
488 rp->cols = 132; in raw3270_size_device_vm()
493 static void raw3270_size_device(struct raw3270 *rp, char *init_data) in raw3270_size_device() argument
500 if (init_data[0] != 0x88 || uap->uab.qcode != 0x81) { in raw3270_size_device()
502 rp->model = 2; in raw3270_size_device()
503 rp->rows = 24; in raw3270_size_device()
504 rp->cols = 80; in raw3270_size_device()
508 rp->rows = uap->uab.h; in raw3270_size_device()
509 rp->cols = uap->uab.w; in raw3270_size_device()
511 if ((uap->uab.flags0 & 0x0d) == 0x01) in raw3270_size_device()
512 set_bit(RAW3270_FLAGS_14BITADDR, &rp->flags); in raw3270_size_device()
514 if (uap->uab.l == sizeof(struct raw3270_ua) && in raw3270_size_device()
515 uap->aua.sdpid == 0x02) { in raw3270_size_device()
516 rp->rows = uap->aua.hauai; in raw3270_size_device()
517 rp->cols = uap->aua.wauai; in raw3270_size_device()
520 rp->model = 0; in raw3270_size_device()
521 if (rp->rows == 24 && rp->cols == 80) in raw3270_size_device()
522 rp->model = 2; in raw3270_size_device()
523 if (rp->rows == 32 && rp->cols == 80) in raw3270_size_device()
524 rp->model = 3; in raw3270_size_device()
525 if (rp->rows == 43 && rp->cols == 80) in raw3270_size_device()
526 rp->model = 4; in raw3270_size_device()
527 if (rp->rows == 27 && rp->cols == 132) in raw3270_size_device()
528 rp->model = 5; in raw3270_size_device()
533 struct raw3270 *rp = container_of(work, struct raw3270, resize_work); in raw3270_resize_work() local
537 list_for_each_entry(view, &rp->view_list, list) { in raw3270_resize_work()
538 if (view->fn->resize) in raw3270_resize_work()
539 view->fn->resize(view, rp->model, rp->rows, rp->cols, in raw3270_resize_work()
540 rp->old_model, rp->old_rows, rp->old_cols); in raw3270_resize_work()
542 rp->old_cols = rp->cols; in raw3270_resize_work()
543 rp->old_rows = rp->rows; in raw3270_resize_work()
544 rp->old_model = rp->model; in raw3270_resize_work()
546 list_for_each_entry(view, &rp->view_list, list) { in raw3270_resize_work()
547 rp->view = view; in raw3270_resize_work()
548 if (view->fn->activate(view) == 0) in raw3270_resize_work()
550 rp->view = NULL; in raw3270_resize_work()
554 static void raw3270_size_device_done(struct raw3270 *rp) in raw3270_size_device_done() argument
556 rp->view = NULL; in raw3270_size_device_done()
557 rp->state = RAW3270_STATE_READY; in raw3270_size_device_done()
558 schedule_work(&rp->resize_work); in raw3270_size_device_done()
563 struct raw3270 *rp = rq->view->dev; in raw3270_read_modified_cb() local
565 raw3270_size_device(rp, data); in raw3270_read_modified_cb()
566 raw3270_size_device_done(rp); in raw3270_read_modified_cb()
570 static void raw3270_read_modified(struct raw3270 *rp) in raw3270_read_modified() argument
572 if (rp->state != RAW3270_STATE_W4ATTN) in raw3270_read_modified()
575 memset(&rp->init_readmod, 0, sizeof(rp->init_readmod)); in raw3270_read_modified()
576 memset(&rp->init_data, 0, sizeof(rp->init_data)); in raw3270_read_modified()
577 rp->init_readmod.ccw.cmd_code = TC_READMOD; in raw3270_read_modified()
578 rp->init_readmod.ccw.flags = CCW_FLAG_SLI; in raw3270_read_modified()
579 rp->init_readmod.ccw.count = sizeof(rp->init_data); in raw3270_read_modified()
580 rp->init_readmod.ccw.cda = (__u32)__pa(rp->init_data); in raw3270_read_modified()
581 rp->init_readmod.callback = raw3270_read_modified_cb; in raw3270_read_modified()
582 rp->init_readmod.callback_data = rp->init_data; in raw3270_read_modified()
583 rp->state = RAW3270_STATE_READMOD; in raw3270_read_modified()
584 raw3270_start_irq(&rp->init_view, &rp->init_readmod); in raw3270_read_modified()
587 static void raw3270_writesf_readpart(struct raw3270 *rp) in raw3270_writesf_readpart() argument
594 memset(&rp->init_readpart, 0, sizeof(rp->init_readpart)); in raw3270_writesf_readpart()
595 memset(&rp->init_data, 0, sizeof(rp->init_data)); in raw3270_writesf_readpart()
596 memcpy(&rp->init_data, wbuf, sizeof(wbuf)); in raw3270_writesf_readpart()
597 rp->init_readpart.ccw.cmd_code = TC_WRITESF; in raw3270_writesf_readpart()
598 rp->init_readpart.ccw.flags = CCW_FLAG_SLI; in raw3270_writesf_readpart()
599 rp->init_readpart.ccw.count = sizeof(wbuf); in raw3270_writesf_readpart()
600 rp->init_readpart.ccw.cda = (__u32)__pa(&rp->init_data); in raw3270_writesf_readpart()
601 rp->state = RAW3270_STATE_W4ATTN; in raw3270_writesf_readpart()
602 raw3270_start_irq(&rp->init_view, &rp->init_readpart); in raw3270_writesf_readpart()
610 struct raw3270 *rp = rq->view->dev; in raw3270_reset_device_cb() local
612 if (rp->state != RAW3270_STATE_RESET) in raw3270_reset_device_cb()
614 if (rq->rc) { in raw3270_reset_device_cb()
616 rp->state = RAW3270_STATE_INIT; in raw3270_reset_device_cb()
618 raw3270_size_device_vm(rp); in raw3270_reset_device_cb()
619 raw3270_size_device_done(rp); in raw3270_reset_device_cb()
621 raw3270_writesf_readpart(rp); in raw3270_reset_device_cb()
623 memset(&rp->init_reset, 0, sizeof(rp->init_reset)); in raw3270_reset_device_cb()
626 static int __raw3270_reset_device(struct raw3270 *rp) in __raw3270_reset_device() argument
631 if (rp->init_reset.view) in __raw3270_reset_device()
632 return -EBUSY; in __raw3270_reset_device()
634 rp->init_data[0] = TW_KR; in __raw3270_reset_device()
635 rp->init_reset.ccw.cmd_code = TC_EWRITEA; in __raw3270_reset_device()
636 rp->init_reset.ccw.flags = CCW_FLAG_SLI; in __raw3270_reset_device()
637 rp->init_reset.ccw.count = 1; in __raw3270_reset_device()
638 rp->init_reset.ccw.cda = (__u32)__pa(rp->init_data); in __raw3270_reset_device()
639 rp->init_reset.callback = raw3270_reset_device_cb; in __raw3270_reset_device()
640 rc = __raw3270_start(rp, &rp->init_view, &rp->init_reset); in __raw3270_reset_device()
641 if (rc == 0 && rp->state == RAW3270_STATE_INIT) in __raw3270_reset_device()
642 rp->state = RAW3270_STATE_RESET; in __raw3270_reset_device()
646 static int raw3270_reset_device(struct raw3270 *rp) in raw3270_reset_device() argument
651 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_reset_device()
652 rc = __raw3270_reset_device(rp); in raw3270_reset_device()
653 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_reset_device()
659 struct raw3270 *rp; in raw3270_reset() local
662 rp = view->dev; in raw3270_reset()
663 if (!rp || rp->view != view) in raw3270_reset()
664 rc = -EACCES; in raw3270_reset()
665 else if (!raw3270_state_ready(rp)) in raw3270_reset()
666 rc = -EBUSY; in raw3270_reset()
668 rc = raw3270_reset_device(view->dev); in raw3270_reset()
673 static void __raw3270_disconnect(struct raw3270 *rp) in __raw3270_disconnect() argument
678 rp->state = RAW3270_STATE_INIT; in __raw3270_disconnect()
679 rp->view = &rp->init_view; in __raw3270_disconnect()
681 while (!list_empty(&rp->req_queue)) { in __raw3270_disconnect()
682 rq = list_entry(rp->req_queue.next, struct raw3270_request, list); in __raw3270_disconnect()
683 view = rq->view; in __raw3270_disconnect()
684 rq->rc = -EACCES; in __raw3270_disconnect()
685 list_del_init(&rq->list); in __raw3270_disconnect()
686 if (rq->callback) in __raw3270_disconnect()
687 rq->callback(rq, rq->callback_data); in __raw3270_disconnect()
691 __raw3270_reset_device(rp); in __raw3270_disconnect()
697 struct raw3270 *rp; in raw3270_init_irq() local
700 if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { in raw3270_init_irq()
701 if (irb->ecw[0] & SNS0_CMD_REJECT) in raw3270_init_irq()
702 rq->rc = -EOPNOTSUPP; in raw3270_init_irq()
704 rq->rc = -EIO; in raw3270_init_irq()
707 if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { in raw3270_init_irq()
709 rp = view->dev; in raw3270_init_irq()
710 raw3270_read_modified(rp); in raw3270_init_irq()
721 static int raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, in raw3270_setup_device() argument
728 memset(rp, 0, sizeof(struct raw3270)); in raw3270_setup_device()
729 /* Copy ebcdic -> ascii translation table. */ in raw3270_setup_device()
737 rp->ascebc = ascebc; in raw3270_setup_device()
740 rp->rows = 24; in raw3270_setup_device()
741 rp->cols = 80; in raw3270_setup_device()
742 rp->old_rows = rp->rows; in raw3270_setup_device()
743 rp->old_cols = rp->cols; in raw3270_setup_device()
745 INIT_LIST_HEAD(&rp->req_queue); in raw3270_setup_device()
746 INIT_LIST_HEAD(&rp->view_list); in raw3270_setup_device()
748 rp->init_view.dev = rp; in raw3270_setup_device()
749 rp->init_view.fn = &raw3270_init_fn; in raw3270_setup_device()
750 rp->view = &rp->init_view; in raw3270_setup_device()
751 INIT_WORK(&rp->resize_work, raw3270_resize_work); in raw3270_setup_device()
761 rp->minor = -1; in raw3270_setup_device()
764 if (tmp->minor > minor) { in raw3270_setup_device()
765 rp->minor = minor; in raw3270_setup_device()
766 __list_add(&rp->list, l->prev, l); in raw3270_setup_device()
771 if (rp->minor == -1 && minor < RAW3270_MAXDEVS + RAW3270_FIRSTMINOR) { in raw3270_setup_device()
772 rp->minor = minor; in raw3270_setup_device()
773 list_add_tail(&rp->list, &raw3270_devices); in raw3270_setup_device()
777 if (rp->minor == -1) in raw3270_setup_device()
778 return -EUSERS; in raw3270_setup_device()
779 rp->cdev = cdev; in raw3270_setup_device()
780 dev_set_drvdata(&cdev->dev, rp); in raw3270_setup_device()
781 cdev->handler = raw3270_irq; in raw3270_setup_device()
786 /* Tentative definition - see below for actual definition. */
789 static inline int raw3270_state_final(struct raw3270 *rp) in raw3270_state_final() argument
791 return rp->state == RAW3270_STATE_INIT || in raw3270_state_final()
792 rp->state == RAW3270_STATE_READY; in raw3270_state_final()
802 struct raw3270 *rp; in raw3270_setup_console() local
810 rp = kzalloc(sizeof(*rp), GFP_KERNEL | GFP_DMA); in raw3270_setup_console()
812 rc = raw3270_setup_device(cdev, rp, ascebc); in raw3270_setup_console()
815 set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags); in raw3270_setup_console()
823 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_setup_console()
825 __raw3270_reset_device(rp); in raw3270_setup_console()
826 while (!raw3270_state_final(rp)) { in raw3270_setup_console()
827 ccw_device_wait_idle(rp->cdev); in raw3270_setup_console()
830 } while (rp->state != RAW3270_STATE_READY); in raw3270_setup_console()
831 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_setup_console()
832 return rp; in raw3270_setup_console()
835 void raw3270_wait_cons_dev(struct raw3270 *rp) in raw3270_wait_cons_dev() argument
839 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_wait_cons_dev()
840 ccw_device_wait_idle(rp->cdev); in raw3270_wait_cons_dev()
841 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_wait_cons_dev()
851 struct raw3270 *rp; in raw3270_create_device() local
855 rp = kzalloc(sizeof(*rp), GFP_KERNEL | GFP_DMA); in raw3270_create_device()
856 if (!rp) in raw3270_create_device()
857 return ERR_PTR(-ENOMEM); in raw3270_create_device()
860 kfree(rp); in raw3270_create_device()
861 return ERR_PTR(-ENOMEM); in raw3270_create_device()
863 rc = raw3270_setup_device(cdev, rp, ascebc); in raw3270_create_device()
865 kfree(rp->ascebc); in raw3270_create_device()
866 kfree(rp); in raw3270_create_device()
867 rp = ERR_PTR(rc); in raw3270_create_device()
870 get_device(&cdev->dev); in raw3270_create_device()
871 return rp; in raw3270_create_device()
880 struct raw3270 *rp = view->dev; in raw3270_view_lock_unavailable() local
882 if (!rp) in raw3270_view_lock_unavailable()
883 return -ENODEV; in raw3270_view_lock_unavailable()
884 if (spin_is_locked(get_ccwdev_lock(rp->cdev))) in raw3270_view_lock_unavailable()
885 return -EBUSY; in raw3270_view_lock_unavailable()
889 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view) in raw3270_assign_activate_view() argument
891 rp->view = view; in raw3270_assign_activate_view()
892 return view->fn->activate(view); in raw3270_assign_activate_view()
895 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view) in __raw3270_activate_view() argument
900 if (rp->view == view) in __raw3270_activate_view()
903 if (!raw3270_state_ready(rp)) in __raw3270_activate_view()
904 return -EBUSY; in __raw3270_activate_view()
906 if (rp->view && rp->view->fn->deactivate) { in __raw3270_activate_view()
907 oldview = rp->view; in __raw3270_activate_view()
908 oldview->fn->deactivate(oldview); in __raw3270_activate_view()
911 rc = raw3270_assign_activate_view(rp, view); in __raw3270_activate_view()
917 rc = raw3270_assign_activate_view(rp, oldview); in __raw3270_activate_view()
923 list_for_each_entry(nv, &rp->view_list, list) { in __raw3270_activate_view()
926 rc = raw3270_assign_activate_view(rp, nv); in __raw3270_activate_view()
929 rp->view = NULL; in __raw3270_activate_view()
939 struct raw3270 *rp; in raw3270_activate_view() local
943 rp = view->dev; in raw3270_activate_view()
944 if (!rp) in raw3270_activate_view()
945 return -ENODEV; in raw3270_activate_view()
946 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_activate_view()
947 rc = __raw3270_activate_view(rp, view); in raw3270_activate_view()
948 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_activate_view()
959 struct raw3270 *rp; in raw3270_deactivate_view() local
961 rp = view->dev; in raw3270_deactivate_view()
962 if (!rp) in raw3270_deactivate_view()
964 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_deactivate_view()
965 if (rp->view == view) { in raw3270_deactivate_view()
966 view->fn->deactivate(view); in raw3270_deactivate_view()
967 rp->view = NULL; in raw3270_deactivate_view()
969 list_del_init(&view->list); in raw3270_deactivate_view()
970 list_add_tail(&view->list, &rp->view_list); in raw3270_deactivate_view()
972 if (raw3270_state_ready(rp)) { in raw3270_deactivate_view()
973 list_for_each_entry(view, &rp->view_list, list) { in raw3270_deactivate_view()
974 rp->view = view; in raw3270_deactivate_view()
975 if (view->fn->activate(view) == 0) in raw3270_deactivate_view()
977 rp->view = NULL; in raw3270_deactivate_view()
981 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_deactivate_view()
992 struct raw3270 *rp; in raw3270_add_view() local
996 return -ENODEV; in raw3270_add_view()
998 rc = -ENODEV; in raw3270_add_view()
999 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_add_view()
1000 if (rp->minor != minor) in raw3270_add_view()
1002 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_add_view()
1003 atomic_set(&view->ref_count, 2); in raw3270_add_view()
1004 view->dev = rp; in raw3270_add_view()
1005 view->fn = fn; in raw3270_add_view()
1006 view->model = rp->model; in raw3270_add_view()
1007 view->rows = rp->rows; in raw3270_add_view()
1008 view->cols = rp->cols; in raw3270_add_view()
1009 view->ascebc = rp->ascebc; in raw3270_add_view()
1010 spin_lock_init(&view->lock); in raw3270_add_view()
1011 lockdep_set_subclass(&view->lock, subclass); in raw3270_add_view()
1012 list_add(&view->list, &rp->view_list); in raw3270_add_view()
1014 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_add_view()
1027 struct raw3270 *rp; in raw3270_find_view() local
1032 view = ERR_PTR(-ENODEV); in raw3270_find_view()
1033 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_find_view()
1034 if (rp->minor != minor) in raw3270_find_view()
1036 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_find_view()
1037 list_for_each_entry(tmp, &rp->view_list, list) { in raw3270_find_view()
1038 if (tmp->fn == fn) { in raw3270_find_view()
1044 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_find_view()
1053 * Remove view from device and free view structure via call to view->fn->free.
1058 struct raw3270 *rp; in raw3270_del_view() local
1061 rp = view->dev; in raw3270_del_view()
1062 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_del_view()
1063 if (rp->view == view) { in raw3270_del_view()
1064 view->fn->deactivate(view); in raw3270_del_view()
1065 rp->view = NULL; in raw3270_del_view()
1067 list_del_init(&view->list); in raw3270_del_view()
1068 if (!rp->view && raw3270_state_ready(rp)) { in raw3270_del_view()
1070 list_for_each_entry(nv, &rp->view_list, list) { in raw3270_del_view()
1071 if (nv->fn->activate(nv) == 0) { in raw3270_del_view()
1072 rp->view = nv; in raw3270_del_view()
1077 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_del_view()
1079 atomic_dec(&view->ref_count); in raw3270_del_view()
1080 wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0); in raw3270_del_view()
1081 if (view->fn->free) in raw3270_del_view()
1082 view->fn->free(view); in raw3270_del_view()
1089 static void raw3270_delete_device(struct raw3270 *rp) in raw3270_delete_device() argument
1095 list_del_init(&rp->list); in raw3270_delete_device()
1099 cdev = rp->cdev; in raw3270_delete_device()
1100 rp->cdev = NULL; in raw3270_delete_device()
1101 dev_set_drvdata(&cdev->dev, NULL); in raw3270_delete_device()
1102 cdev->handler = NULL; in raw3270_delete_device()
1105 put_device(&cdev->dev); in raw3270_delete_device()
1108 kfree(rp->ascebc); in raw3270_delete_device()
1109 kfree(rp); in raw3270_delete_device()
1124 ((struct raw3270 *)dev_get_drvdata(dev))->model); in model_show()
1132 ((struct raw3270 *)dev_get_drvdata(dev))->rows); in rows_show()
1141 ((struct raw3270 *)dev_get_drvdata(dev))->cols); in columns_show()
1156 static int raw3270_create_attributes(struct raw3270 *rp) in raw3270_create_attributes() argument
1158 return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group); in raw3270_create_attributes()
1168 struct raw3270 *rp; in raw3270_register_notifier() local
1171 list_add_tail(¬ifier->list, &raw3270_notifier); in raw3270_register_notifier()
1172 list_for_each_entry(rp, &raw3270_devices, list) in raw3270_register_notifier()
1173 notifier->create(rp->minor); in raw3270_register_notifier()
1181 struct raw3270 *rp; in raw3270_unregister_notifier() local
1184 list_for_each_entry(rp, &raw3270_devices, list) in raw3270_unregister_notifier()
1185 notifier->destroy(rp->minor); in raw3270_unregister_notifier()
1186 list_del(¬ifier->list); in raw3270_unregister_notifier()
1197 struct raw3270 *rp; in raw3270_set_online() local
1200 rp = raw3270_create_device(cdev); in raw3270_set_online()
1201 if (IS_ERR(rp)) in raw3270_set_online()
1202 return PTR_ERR(rp); in raw3270_set_online()
1203 rc = raw3270_create_attributes(rp); in raw3270_set_online()
1206 raw3270_reset_device(rp); in raw3270_set_online()
1209 np->create(rp->minor); in raw3270_set_online()
1214 raw3270_delete_device(rp); in raw3270_set_online()
1224 struct raw3270 *rp; in raw3270_remove() local
1228 rp = dev_get_drvdata(&cdev->dev); in raw3270_remove()
1231 * should set up rp. raw3270_remove gets entered for in raw3270_remove()
1233 * Thus, rp may validly be NULL here. in raw3270_remove()
1235 if (!rp) in raw3270_remove()
1238 sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group); in raw3270_remove()
1242 if (rp->view) { in raw3270_remove()
1243 if (rp->view->fn->deactivate) in raw3270_remove()
1244 rp->view->fn->deactivate(rp->view); in raw3270_remove()
1245 rp->view = NULL; in raw3270_remove()
1247 while (!list_empty(&rp->view_list)) { in raw3270_remove()
1248 v = list_entry(rp->view_list.next, struct raw3270_view, list); in raw3270_remove()
1249 if (v->fn->release) in raw3270_remove()
1250 v->fn->release(v); in raw3270_remove()
1259 np->destroy(rp->minor); in raw3270_remove()
1263 raw3270_reset_device(rp); in raw3270_remove()
1265 raw3270_delete_device(rp); in raw3270_remove()
1273 struct raw3270 *rp; in raw3270_set_offline() local
1275 rp = dev_get_drvdata(&cdev->dev); in raw3270_set_offline()
1276 if (test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) in raw3270_set_offline()
1277 return -EBUSY; in raw3270_set_offline()
1312 struct raw3270 *rp; in raw3270_init() local
1323 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_init()
1324 get_device(&rp->cdev->dev); in raw3270_init()
1325 raw3270_create_attributes(rp); in raw3270_init()