Lines Matching +full:x +full:- +full:rp
1 // SPDX-License-Identifier: GPL-2.0
3 * IBM/3270 Driver - core functions.
54 unsigned char *ascebc; /* ascii -> ebcdic table */
64 /* raw3270->state */
71 /* raw3270->flags */
72 #define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */
99 static void __raw3270_disconnect(struct raw3270 *rp);
115 static inline int raw3270_state_ready(struct raw3270 *rp) in raw3270_state_ready() argument
117 return rp->state == RAW3270_STATE_READY; in raw3270_state_ready()
120 void raw3270_buffer_address(struct raw3270 *rp, char *cp, int x, int y) in raw3270_buffer_address() argument
124 if (x < 0) in raw3270_buffer_address()
125 x = max_t(int, 0, rp->view->cols + x); in raw3270_buffer_address()
127 y = max_t(int, 0, rp->view->rows + y); in raw3270_buffer_address()
128 addr = (y * rp->view->cols) + x; in raw3270_buffer_address()
129 if (test_bit(RAW3270_FLAGS_14BITADDR, &rp->flags)) { in raw3270_buffer_address()
149 return ERR_PTR(-ENOMEM); in raw3270_request_alloc()
153 rq->buffer = kmalloc(size, GFP_KERNEL | GFP_DMA); in raw3270_request_alloc()
154 if (!rq->buffer) { in raw3270_request_alloc()
156 return ERR_PTR(-ENOMEM); in raw3270_request_alloc()
159 rq->size = size; in raw3270_request_alloc()
160 INIT_LIST_HEAD(&rq->list); in raw3270_request_alloc()
165 if (rq->buffer) in raw3270_request_alloc()
166 rq->ccw.cda = virt_to_dma32(rq->buffer); in raw3270_request_alloc()
167 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_alloc()
178 kfree(rq->buffer); in raw3270_request_free()
188 if (WARN_ON_ONCE(!list_empty(&rq->list))) in raw3270_request_reset()
189 return -EBUSY; in raw3270_request_reset()
190 rq->ccw.cmd_code = 0; in raw3270_request_reset()
191 rq->ccw.count = 0; in raw3270_request_reset()
192 if (rq->buffer) in raw3270_request_reset()
193 rq->ccw.cda = virt_to_dma32(rq->buffer); in raw3270_request_reset()
194 rq->ccw.flags = CCW_FLAG_SLI; in raw3270_request_reset()
195 rq->rescnt = 0; in raw3270_request_reset()
196 rq->rc = 0; in raw3270_request_reset()
206 rq->ccw.cmd_code = cmd; in raw3270_request_set_cmd()
215 if (size + rq->ccw.count > rq->size) in raw3270_request_add_data()
216 return -E2BIG; in raw3270_request_add_data()
217 memcpy(rq->buffer + rq->ccw.count, data, size); in raw3270_request_add_data()
218 rq->ccw.count += size; in raw3270_request_add_data()
228 rq->ccw.cda = virt_to_dma32(data); in raw3270_request_set_data()
229 rq->ccw.count = size; in raw3270_request_set_data()
238 rq->ccw.cda = virt_to_dma32(ib->data); in raw3270_request_set_idal()
239 rq->ccw.count = ib->size; in raw3270_request_set_idal()
240 rq->ccw.flags |= CCW_FLAG_IDA; in raw3270_request_set_idal()
248 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view, in __raw3270_start() argument
251 rq->view = view; in __raw3270_start()
253 if (list_empty(&rp->req_queue) && in __raw3270_start()
254 !test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) { in __raw3270_start()
256 rq->rc = ccw_device_start(rp->cdev, &rq->ccw, in __raw3270_start()
258 if (rq->rc) { in __raw3270_start()
260 return rq->rc; in __raw3270_start()
263 list_add_tail(&rq->list, &rp->req_queue); in __raw3270_start()
269 struct raw3270 *rp = view->dev; in raw3270_view_active() local
271 return rp && rp->view == view; in raw3270_view_active()
277 struct raw3270 *rp; in raw3270_start() local
280 spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags); in raw3270_start()
281 rp = view->dev; in raw3270_start()
282 if (!rp || rp->view != view) in raw3270_start()
283 rc = -EACCES; in raw3270_start()
284 else if (!raw3270_state_ready(rp)) in raw3270_start()
285 rc = -EBUSY; in raw3270_start()
287 rc = __raw3270_start(rp, view, rq); in raw3270_start()
288 spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags); in raw3270_start()
311 struct raw3270 *rp; in raw3270_start_locked() local
314 rp = view->dev; in raw3270_start_locked()
315 if (!rp || rp->view != view) in raw3270_start_locked()
316 rc = -EACCES; in raw3270_start_locked()
317 else if (!raw3270_state_ready(rp)) in raw3270_start_locked()
318 rc = -EBUSY; in raw3270_start_locked()
320 rc = __raw3270_start(rp, view, rq); in raw3270_start_locked()
327 struct raw3270 *rp; in raw3270_start_irq() local
329 rp = view->dev; in raw3270_start_irq()
330 rq->view = view; in raw3270_start_irq()
332 list_add_tail(&rq->list, &rp->req_queue); in raw3270_start_irq()
342 struct raw3270 *rp; in raw3270_irq() local
346 rp = dev_get_drvdata(&cdev->dev); in raw3270_irq()
347 if (!rp) in raw3270_irq()
350 view = rq ? rq->view : rp->view; in raw3270_irq()
353 /* Handle CE-DE-UE and subsequent UDE */ in raw3270_irq()
354 if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) in raw3270_irq()
355 clear_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
356 if (irb->scsw.cmd.dstat == (DEV_STAT_CHN_END | in raw3270_irq()
359 set_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
361 if ((irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) && in raw3270_irq()
362 (irb->ecw[0] & SNS0_INTERVENTION_REQ)) { in raw3270_irq()
363 set_bit(RAW3270_FLAGS_BUSY, &rp->flags); in raw3270_irq()
364 if (rp->state > RAW3270_STATE_RESET) in raw3270_irq()
365 __raw3270_disconnect(rp); in raw3270_irq()
369 view->fn->intv(view, rq, irb); in raw3270_irq()
372 if (test_bit(RAW3270_FLAGS_BUSY, &rp->flags)) in raw3270_irq()
376 if (rq && !list_empty(&rq->list)) { in raw3270_irq()
378 list_del_init(&rq->list); in raw3270_irq()
379 if (rq->callback) in raw3270_irq()
380 rq->callback(rq, rq->callback_data); in raw3270_irq()
389 while (!list_empty(&rp->req_queue)) { in raw3270_irq()
390 rq = list_entry(rp->req_queue.next, struct raw3270_request, list); in raw3270_irq()
391 rq->rc = ccw_device_start(rp->cdev, &rq->ccw, in raw3270_irq()
393 if (rq->rc == 0) in raw3270_irq()
396 list_del_init(&rq->list); in raw3270_irq()
397 if (rq->callback) in raw3270_irq()
398 rq->callback(rq, rq->callback_data); in raw3270_irq()
410 * required (3270 device switched to 'stand-by') and command
433 struct { /* Alternate Usable Area Self-Defining Parameter */
434 char l; /* Length of this Self-Defining Parm */
448 static void raw3270_size_device_vm(struct raw3270 *rp) in raw3270_size_device_vm() argument
455 ccw_device_get_id(rp->cdev, &dev_id); in raw3270_size_device_vm()
458 rp->model = 2; in raw3270_size_device_vm()
459 rp->rows = diag8c_data.height; in raw3270_size_device_vm()
460 rp->cols = diag8c_data.width; in raw3270_size_device_vm()
462 set_bit(RAW3270_FLAGS_14BITADDR, &rp->flags); in raw3270_size_device_vm()
475 rp->model = model; in raw3270_size_device_vm()
476 rp->rows = 24; in raw3270_size_device_vm()
477 rp->cols = 80; in raw3270_size_device_vm()
480 rp->model = model; in raw3270_size_device_vm()
481 rp->rows = 32; in raw3270_size_device_vm()
482 rp->cols = 80; in raw3270_size_device_vm()
485 rp->model = model; in raw3270_size_device_vm()
486 rp->rows = 43; in raw3270_size_device_vm()
487 rp->cols = 80; in raw3270_size_device_vm()
490 rp->model = model; in raw3270_size_device_vm()
491 rp->rows = 27; in raw3270_size_device_vm()
492 rp->cols = 132; in raw3270_size_device_vm()
497 static void raw3270_size_device(struct raw3270 *rp, char *init_data) in raw3270_size_device() argument
504 if (init_data[0] != 0x88 || uap->uab.qcode != 0x81) { in raw3270_size_device()
506 rp->model = 2; in raw3270_size_device()
507 rp->rows = 24; in raw3270_size_device()
508 rp->cols = 80; in raw3270_size_device()
512 rp->rows = uap->uab.h; in raw3270_size_device()
513 rp->cols = uap->uab.w; in raw3270_size_device()
515 if ((uap->uab.flags0 & 0x0d) == 0x01) in raw3270_size_device()
516 set_bit(RAW3270_FLAGS_14BITADDR, &rp->flags); in raw3270_size_device()
518 if (uap->uab.l == sizeof(struct raw3270_ua) && in raw3270_size_device()
519 uap->aua.sdpid == 0x02) { in raw3270_size_device()
520 rp->rows = uap->aua.hauai; in raw3270_size_device()
521 rp->cols = uap->aua.wauai; in raw3270_size_device()
524 rp->model = 0; in raw3270_size_device()
525 if (rp->rows == 24 && rp->cols == 80) in raw3270_size_device()
526 rp->model = 2; in raw3270_size_device()
527 if (rp->rows == 32 && rp->cols == 80) in raw3270_size_device()
528 rp->model = 3; in raw3270_size_device()
529 if (rp->rows == 43 && rp->cols == 80) in raw3270_size_device()
530 rp->model = 4; in raw3270_size_device()
531 if (rp->rows == 27 && rp->cols == 132) in raw3270_size_device()
532 rp->model = 5; in raw3270_size_device()
537 struct raw3270 *rp = container_of(work, struct raw3270, resize_work); in raw3270_resize_work() local
541 list_for_each_entry(view, &rp->view_list, list) { in raw3270_resize_work()
542 if (view->fn->resize) in raw3270_resize_work()
543 view->fn->resize(view, rp->model, rp->rows, rp->cols, in raw3270_resize_work()
544 rp->old_model, rp->old_rows, rp->old_cols); in raw3270_resize_work()
546 rp->old_cols = rp->cols; in raw3270_resize_work()
547 rp->old_rows = rp->rows; in raw3270_resize_work()
548 rp->old_model = rp->model; in raw3270_resize_work()
550 list_for_each_entry(view, &rp->view_list, list) { in raw3270_resize_work()
551 rp->view = view; in raw3270_resize_work()
552 if (view->fn->activate(view) == 0) in raw3270_resize_work()
554 rp->view = NULL; in raw3270_resize_work()
558 static void raw3270_size_device_done(struct raw3270 *rp) in raw3270_size_device_done() argument
560 rp->view = NULL; in raw3270_size_device_done()
561 rp->state = RAW3270_STATE_READY; in raw3270_size_device_done()
562 schedule_work(&rp->resize_work); in raw3270_size_device_done()
567 struct raw3270 *rp = rq->view->dev; in raw3270_read_modified_cb() local
569 raw3270_size_device(rp, data); in raw3270_read_modified_cb()
570 raw3270_size_device_done(rp); in raw3270_read_modified_cb()
574 static void raw3270_read_modified(struct raw3270 *rp) in raw3270_read_modified() argument
576 if (rp->state != RAW3270_STATE_W4ATTN) in raw3270_read_modified()
579 memset(&rp->init_readmod, 0, sizeof(rp->init_readmod)); in raw3270_read_modified()
580 memset(&rp->init_data, 0, sizeof(rp->init_data)); in raw3270_read_modified()
581 rp->init_readmod.ccw.cmd_code = TC_READMOD; in raw3270_read_modified()
582 rp->init_readmod.ccw.flags = CCW_FLAG_SLI; in raw3270_read_modified()
583 rp->init_readmod.ccw.count = sizeof(rp->init_data); in raw3270_read_modified()
584 rp->init_readmod.ccw.cda = virt_to_dma32(rp->init_data); in raw3270_read_modified()
585 rp->init_readmod.callback = raw3270_read_modified_cb; in raw3270_read_modified()
586 rp->init_readmod.callback_data = rp->init_data; in raw3270_read_modified()
587 rp->state = RAW3270_STATE_READMOD; in raw3270_read_modified()
588 raw3270_start_irq(&rp->init_view, &rp->init_readmod); in raw3270_read_modified()
591 static void raw3270_writesf_readpart(struct raw3270 *rp) in raw3270_writesf_readpart() argument
598 memset(&rp->init_readpart, 0, sizeof(rp->init_readpart)); in raw3270_writesf_readpart()
599 memset(&rp->init_data, 0, sizeof(rp->init_data)); in raw3270_writesf_readpart()
600 memcpy(&rp->init_data, wbuf, sizeof(wbuf)); in raw3270_writesf_readpart()
601 rp->init_readpart.ccw.cmd_code = TC_WRITESF; in raw3270_writesf_readpart()
602 rp->init_readpart.ccw.flags = CCW_FLAG_SLI; in raw3270_writesf_readpart()
603 rp->init_readpart.ccw.count = sizeof(wbuf); in raw3270_writesf_readpart()
604 rp->init_readpart.ccw.cda = virt_to_dma32(&rp->init_data); in raw3270_writesf_readpart()
605 rp->state = RAW3270_STATE_W4ATTN; in raw3270_writesf_readpart()
606 raw3270_start_irq(&rp->init_view, &rp->init_readpart); in raw3270_writesf_readpart()
614 struct raw3270 *rp = rq->view->dev; in raw3270_reset_device_cb() local
616 if (rp->state != RAW3270_STATE_RESET) in raw3270_reset_device_cb()
618 if (rq->rc) { in raw3270_reset_device_cb()
620 rp->state = RAW3270_STATE_INIT; in raw3270_reset_device_cb()
622 raw3270_size_device_vm(rp); in raw3270_reset_device_cb()
623 raw3270_size_device_done(rp); in raw3270_reset_device_cb()
625 raw3270_writesf_readpart(rp); in raw3270_reset_device_cb()
627 memset(&rp->init_reset, 0, sizeof(rp->init_reset)); in raw3270_reset_device_cb()
630 static int __raw3270_reset_device(struct raw3270 *rp) in __raw3270_reset_device() argument
635 if (rp->init_reset.view) in __raw3270_reset_device()
636 return -EBUSY; in __raw3270_reset_device()
638 rp->init_data[0] = TW_KR; in __raw3270_reset_device()
639 rp->init_reset.ccw.cmd_code = TC_EWRITEA; in __raw3270_reset_device()
640 rp->init_reset.ccw.flags = CCW_FLAG_SLI; in __raw3270_reset_device()
641 rp->init_reset.ccw.count = 1; in __raw3270_reset_device()
642 rp->init_reset.ccw.cda = virt_to_dma32(rp->init_data); in __raw3270_reset_device()
643 rp->init_reset.callback = raw3270_reset_device_cb; in __raw3270_reset_device()
644 rc = __raw3270_start(rp, &rp->init_view, &rp->init_reset); in __raw3270_reset_device()
645 if (rc == 0 && rp->state == RAW3270_STATE_INIT) in __raw3270_reset_device()
646 rp->state = RAW3270_STATE_RESET; in __raw3270_reset_device()
650 static int raw3270_reset_device(struct raw3270 *rp) in raw3270_reset_device() argument
655 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_reset_device()
656 rc = __raw3270_reset_device(rp); in raw3270_reset_device()
657 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_reset_device()
663 struct raw3270 *rp; in raw3270_reset() local
666 rp = view->dev; in raw3270_reset()
667 if (!rp || rp->view != view) in raw3270_reset()
668 rc = -EACCES; in raw3270_reset()
669 else if (!raw3270_state_ready(rp)) in raw3270_reset()
670 rc = -EBUSY; in raw3270_reset()
672 rc = raw3270_reset_device(view->dev); in raw3270_reset()
677 static void __raw3270_disconnect(struct raw3270 *rp) in __raw3270_disconnect() argument
682 rp->state = RAW3270_STATE_INIT; in __raw3270_disconnect()
683 rp->view = &rp->init_view; in __raw3270_disconnect()
685 while (!list_empty(&rp->req_queue)) { in __raw3270_disconnect()
686 rq = list_entry(rp->req_queue.next, struct raw3270_request, list); in __raw3270_disconnect()
687 view = rq->view; in __raw3270_disconnect()
688 rq->rc = -EACCES; in __raw3270_disconnect()
689 list_del_init(&rq->list); in __raw3270_disconnect()
690 if (rq->callback) in __raw3270_disconnect()
691 rq->callback(rq, rq->callback_data); in __raw3270_disconnect()
695 __raw3270_reset_device(rp); in __raw3270_disconnect()
701 struct raw3270 *rp; in raw3270_init_irq() local
704 if (irb->scsw.cmd.dstat & DEV_STAT_UNIT_CHECK) { in raw3270_init_irq()
705 if (irb->ecw[0] & SNS0_CMD_REJECT) in raw3270_init_irq()
706 rq->rc = -EOPNOTSUPP; in raw3270_init_irq()
708 rq->rc = -EIO; in raw3270_init_irq()
711 if (irb->scsw.cmd.dstat & DEV_STAT_ATTENTION) { in raw3270_init_irq()
713 rp = view->dev; in raw3270_init_irq()
714 raw3270_read_modified(rp); in raw3270_init_irq()
725 static int raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, in raw3270_setup_device() argument
732 memset(rp, 0, sizeof(struct raw3270)); in raw3270_setup_device()
733 /* Copy ebcdic -> ascii translation table. */ in raw3270_setup_device()
741 rp->ascebc = ascebc; in raw3270_setup_device()
744 rp->rows = 24; in raw3270_setup_device()
745 rp->cols = 80; in raw3270_setup_device()
746 rp->old_rows = rp->rows; in raw3270_setup_device()
747 rp->old_cols = rp->cols; in raw3270_setup_device()
749 INIT_LIST_HEAD(&rp->req_queue); in raw3270_setup_device()
750 INIT_LIST_HEAD(&rp->view_list); in raw3270_setup_device()
752 rp->init_view.dev = rp; in raw3270_setup_device()
753 rp->init_view.fn = &raw3270_init_fn; in raw3270_setup_device()
754 rp->view = &rp->init_view; in raw3270_setup_device()
755 INIT_WORK(&rp->resize_work, raw3270_resize_work); in raw3270_setup_device()
765 rp->minor = -1; in raw3270_setup_device()
768 if (tmp->minor > minor) { in raw3270_setup_device()
769 rp->minor = minor; in raw3270_setup_device()
770 __list_add(&rp->list, l->prev, l); in raw3270_setup_device()
775 if (rp->minor == -1 && minor < RAW3270_MAXDEVS + RAW3270_FIRSTMINOR) { in raw3270_setup_device()
776 rp->minor = minor; in raw3270_setup_device()
777 list_add_tail(&rp->list, &raw3270_devices); in raw3270_setup_device()
781 if (rp->minor == -1) in raw3270_setup_device()
782 return -EUSERS; in raw3270_setup_device()
783 rp->cdev = cdev; in raw3270_setup_device()
784 dev_set_drvdata(&cdev->dev, rp); in raw3270_setup_device()
785 cdev->handler = raw3270_irq; in raw3270_setup_device()
790 /* Tentative definition - see below for actual definition. */
793 static inline int raw3270_state_final(struct raw3270 *rp) in raw3270_state_final() argument
795 return rp->state == RAW3270_STATE_INIT || in raw3270_state_final()
796 rp->state == RAW3270_STATE_READY; in raw3270_state_final()
806 struct raw3270 *rp; in raw3270_setup_console() local
814 rp = kzalloc(sizeof(*rp), GFP_KERNEL | GFP_DMA); in raw3270_setup_console()
816 rc = raw3270_setup_device(cdev, rp, ascebc); in raw3270_setup_console()
819 set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags); in raw3270_setup_console()
827 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_setup_console()
829 __raw3270_reset_device(rp); in raw3270_setup_console()
830 while (!raw3270_state_final(rp)) { in raw3270_setup_console()
831 ccw_device_wait_idle(rp->cdev); in raw3270_setup_console()
834 } while (rp->state != RAW3270_STATE_READY); in raw3270_setup_console()
835 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_setup_console()
836 return rp; in raw3270_setup_console()
839 void raw3270_wait_cons_dev(struct raw3270 *rp) in raw3270_wait_cons_dev() argument
843 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_wait_cons_dev()
844 ccw_device_wait_idle(rp->cdev); in raw3270_wait_cons_dev()
845 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_wait_cons_dev()
855 struct raw3270 *rp; in raw3270_create_device() local
859 rp = kzalloc(sizeof(*rp), GFP_KERNEL | GFP_DMA); in raw3270_create_device()
860 if (!rp) in raw3270_create_device()
861 return ERR_PTR(-ENOMEM); in raw3270_create_device()
864 kfree(rp); in raw3270_create_device()
865 return ERR_PTR(-ENOMEM); in raw3270_create_device()
867 rc = raw3270_setup_device(cdev, rp, ascebc); in raw3270_create_device()
869 kfree(rp->ascebc); in raw3270_create_device()
870 kfree(rp); in raw3270_create_device()
871 rp = ERR_PTR(rc); in raw3270_create_device()
874 get_device(&cdev->dev); in raw3270_create_device()
875 return rp; in raw3270_create_device()
884 struct raw3270 *rp = view->dev; in raw3270_view_lock_unavailable() local
886 if (!rp) in raw3270_view_lock_unavailable()
887 return -ENODEV; in raw3270_view_lock_unavailable()
888 if (spin_is_locked(get_ccwdev_lock(rp->cdev))) in raw3270_view_lock_unavailable()
889 return -EBUSY; in raw3270_view_lock_unavailable()
893 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view) in raw3270_assign_activate_view() argument
895 rp->view = view; in raw3270_assign_activate_view()
896 return view->fn->activate(view); in raw3270_assign_activate_view()
899 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view) in __raw3270_activate_view() argument
904 if (rp->view == view) in __raw3270_activate_view()
907 if (!raw3270_state_ready(rp)) in __raw3270_activate_view()
908 return -EBUSY; in __raw3270_activate_view()
910 if (rp->view && rp->view->fn->deactivate) { in __raw3270_activate_view()
911 oldview = rp->view; in __raw3270_activate_view()
912 oldview->fn->deactivate(oldview); in __raw3270_activate_view()
915 rc = raw3270_assign_activate_view(rp, view); in __raw3270_activate_view()
921 rc = raw3270_assign_activate_view(rp, oldview); in __raw3270_activate_view()
927 list_for_each_entry(nv, &rp->view_list, list) { in __raw3270_activate_view()
930 rc = raw3270_assign_activate_view(rp, nv); in __raw3270_activate_view()
933 rp->view = NULL; in __raw3270_activate_view()
943 struct raw3270 *rp; in raw3270_activate_view() local
947 rp = view->dev; in raw3270_activate_view()
948 if (!rp) in raw3270_activate_view()
949 return -ENODEV; in raw3270_activate_view()
950 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_activate_view()
951 rc = __raw3270_activate_view(rp, view); in raw3270_activate_view()
952 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_activate_view()
963 struct raw3270 *rp; in raw3270_deactivate_view() local
965 rp = view->dev; in raw3270_deactivate_view()
966 if (!rp) in raw3270_deactivate_view()
968 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_deactivate_view()
969 if (rp->view == view) { in raw3270_deactivate_view()
970 view->fn->deactivate(view); in raw3270_deactivate_view()
971 rp->view = NULL; in raw3270_deactivate_view()
973 list_del_init(&view->list); in raw3270_deactivate_view()
974 list_add_tail(&view->list, &rp->view_list); in raw3270_deactivate_view()
976 if (raw3270_state_ready(rp)) { in raw3270_deactivate_view()
977 list_for_each_entry(view, &rp->view_list, list) { in raw3270_deactivate_view()
978 rp->view = view; in raw3270_deactivate_view()
979 if (view->fn->activate(view) == 0) in raw3270_deactivate_view()
981 rp->view = NULL; in raw3270_deactivate_view()
985 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_deactivate_view()
996 struct raw3270 *rp; in raw3270_add_view() local
1000 return -ENODEV; in raw3270_add_view()
1002 rc = -ENODEV; in raw3270_add_view()
1003 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_add_view()
1004 if (rp->minor != minor) in raw3270_add_view()
1006 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_add_view()
1007 atomic_set(&view->ref_count, 2); in raw3270_add_view()
1008 view->dev = rp; in raw3270_add_view()
1009 view->fn = fn; in raw3270_add_view()
1010 view->model = rp->model; in raw3270_add_view()
1011 view->rows = rp->rows; in raw3270_add_view()
1012 view->cols = rp->cols; in raw3270_add_view()
1013 view->ascebc = rp->ascebc; in raw3270_add_view()
1014 spin_lock_init(&view->lock); in raw3270_add_view()
1015 lockdep_set_subclass(&view->lock, subclass); in raw3270_add_view()
1016 list_add(&view->list, &rp->view_list); in raw3270_add_view()
1018 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_add_view()
1031 struct raw3270 *rp; in raw3270_find_view() local
1036 view = ERR_PTR(-ENODEV); in raw3270_find_view()
1037 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_find_view()
1038 if (rp->minor != minor) in raw3270_find_view()
1040 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_find_view()
1041 list_for_each_entry(tmp, &rp->view_list, list) { in raw3270_find_view()
1042 if (tmp->fn == fn) { in raw3270_find_view()
1048 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_find_view()
1057 * Remove view from device and free view structure via call to view->fn->free.
1062 struct raw3270 *rp; in raw3270_del_view() local
1065 rp = view->dev; in raw3270_del_view()
1066 spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); in raw3270_del_view()
1067 if (rp->view == view) { in raw3270_del_view()
1068 view->fn->deactivate(view); in raw3270_del_view()
1069 rp->view = NULL; in raw3270_del_view()
1071 list_del_init(&view->list); in raw3270_del_view()
1072 if (!rp->view && raw3270_state_ready(rp)) { in raw3270_del_view()
1074 list_for_each_entry(nv, &rp->view_list, list) { in raw3270_del_view()
1075 if (nv->fn->activate(nv) == 0) { in raw3270_del_view()
1076 rp->view = nv; in raw3270_del_view()
1081 spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); in raw3270_del_view()
1083 atomic_dec(&view->ref_count); in raw3270_del_view()
1084 wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0); in raw3270_del_view()
1085 if (view->fn->free) in raw3270_del_view()
1086 view->fn->free(view); in raw3270_del_view()
1093 static void raw3270_delete_device(struct raw3270 *rp) in raw3270_delete_device() argument
1099 list_del_init(&rp->list); in raw3270_delete_device()
1103 cdev = rp->cdev; in raw3270_delete_device()
1104 rp->cdev = NULL; in raw3270_delete_device()
1105 dev_set_drvdata(&cdev->dev, NULL); in raw3270_delete_device()
1106 cdev->handler = NULL; in raw3270_delete_device()
1109 put_device(&cdev->dev); in raw3270_delete_device()
1112 kfree(rp->ascebc); in raw3270_delete_device()
1113 kfree(rp); in raw3270_delete_device()
1128 ((struct raw3270 *)dev_get_drvdata(dev))->model); in model_show()
1136 ((struct raw3270 *)dev_get_drvdata(dev))->rows); in rows_show()
1145 ((struct raw3270 *)dev_get_drvdata(dev))->cols); in columns_show()
1160 static int raw3270_create_attributes(struct raw3270 *rp) in raw3270_create_attributes() argument
1162 return sysfs_create_group(&rp->cdev->dev.kobj, &raw3270_attr_group); in raw3270_create_attributes()
1172 struct raw3270 *rp; in raw3270_register_notifier() local
1175 list_add_tail(¬ifier->list, &raw3270_notifier); in raw3270_register_notifier()
1176 list_for_each_entry(rp, &raw3270_devices, list) in raw3270_register_notifier()
1177 notifier->create(rp->minor); in raw3270_register_notifier()
1185 struct raw3270 *rp; in raw3270_unregister_notifier() local
1188 list_for_each_entry(rp, &raw3270_devices, list) in raw3270_unregister_notifier()
1189 notifier->destroy(rp->minor); in raw3270_unregister_notifier()
1190 list_del(¬ifier->list); in raw3270_unregister_notifier()
1201 struct raw3270 *rp; in raw3270_set_online() local
1204 rp = raw3270_create_device(cdev); in raw3270_set_online()
1205 if (IS_ERR(rp)) in raw3270_set_online()
1206 return PTR_ERR(rp); in raw3270_set_online()
1207 rc = raw3270_create_attributes(rp); in raw3270_set_online()
1210 raw3270_reset_device(rp); in raw3270_set_online()
1213 np->create(rp->minor); in raw3270_set_online()
1218 raw3270_delete_device(rp); in raw3270_set_online()
1228 struct raw3270 *rp; in raw3270_remove() local
1232 rp = dev_get_drvdata(&cdev->dev); in raw3270_remove()
1235 * should set up rp. raw3270_remove gets entered for in raw3270_remove()
1237 * Thus, rp may validly be NULL here. in raw3270_remove()
1239 if (!rp) in raw3270_remove()
1242 sysfs_remove_group(&cdev->dev.kobj, &raw3270_attr_group); in raw3270_remove()
1246 if (rp->view) { in raw3270_remove()
1247 if (rp->view->fn->deactivate) in raw3270_remove()
1248 rp->view->fn->deactivate(rp->view); in raw3270_remove()
1249 rp->view = NULL; in raw3270_remove()
1251 while (!list_empty(&rp->view_list)) { in raw3270_remove()
1252 v = list_entry(rp->view_list.next, struct raw3270_view, list); in raw3270_remove()
1253 if (v->fn->release) in raw3270_remove()
1254 v->fn->release(v); in raw3270_remove()
1263 np->destroy(rp->minor); in raw3270_remove()
1267 raw3270_reset_device(rp); in raw3270_remove()
1269 raw3270_delete_device(rp); in raw3270_remove()
1277 struct raw3270 *rp; in raw3270_set_offline() local
1279 rp = dev_get_drvdata(&cdev->dev); in raw3270_set_offline()
1280 if (test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) in raw3270_set_offline()
1281 return -EBUSY; in raw3270_set_offline()
1316 struct raw3270 *rp; in raw3270_init() local
1330 list_for_each_entry(rp, &raw3270_devices, list) { in raw3270_init()
1331 get_device(&rp->cdev->dev); in raw3270_init()
1332 raw3270_create_attributes(rp); in raw3270_init()
1344 MODULE_DESCRIPTION("IBM/3270 Driver - core functions");