Lines Matching refs:urd
104 struct urdev *urd; in urdev_alloc() local
106 urd = kzalloc(sizeof(struct urdev), GFP_KERNEL); in urdev_alloc()
107 if (!urd) in urdev_alloc()
109 urd->reclen = cdev->id.driver_info; in urdev_alloc()
110 ccw_device_get_id(cdev, &urd->dev_id); in urdev_alloc()
111 mutex_init(&urd->io_mutex); in urdev_alloc()
112 init_waitqueue_head(&urd->wait); in urdev_alloc()
113 spin_lock_init(&urd->open_lock); in urdev_alloc()
114 refcount_set(&urd->ref_count, 1); in urdev_alloc()
115 urd->cdev = cdev; in urdev_alloc()
117 return urd; in urdev_alloc()
120 static void urdev_free(struct urdev *urd) in urdev_free() argument
122 TRACE("urdev_free: %p\n", urd); in urdev_free()
123 if (urd->cdev) in urdev_free()
124 put_device(&urd->cdev->dev); in urdev_free()
125 kfree(urd); in urdev_free()
128 static void urdev_get(struct urdev *urd) in urdev_get() argument
130 refcount_inc(&urd->ref_count); in urdev_get()
135 struct urdev *urd; in urdev_get_from_cdev() local
139 urd = dev_get_drvdata(&cdev->dev); in urdev_get_from_cdev()
140 if (urd) in urdev_get_from_cdev()
141 urdev_get(urd); in urdev_get_from_cdev()
143 return urd; in urdev_get_from_cdev()
150 struct urdev *urd; in urdev_get_from_devno() local
156 urd = urdev_get_from_cdev(cdev); in urdev_get_from_devno()
158 return urd; in urdev_get_from_devno()
161 static void urdev_put(struct urdev *urd) in urdev_put() argument
163 if (refcount_dec_and_test(&urd->ref_count)) in urdev_put()
164 urdev_free(urd); in urdev_put()
178 struct urdev *urd = dev_get_drvdata(&cdev->dev); in ur_pm_suspend() local
181 if (urd->open_flag) { in ur_pm_suspend()
271 static int do_ur_io(struct urdev *urd, struct ccw1 *cpa) in do_ur_io() argument
274 struct ccw_device *cdev = urd->cdev; in do_ur_io()
279 rc = mutex_lock_interruptible(&urd->io_mutex); in do_ur_io()
283 urd->io_done = &event; in do_ur_io()
298 mutex_unlock(&urd->io_mutex); in do_ur_io()
308 struct urdev *urd; in ur_int_handler() local
319 urd = dev_get_drvdata(&cdev->dev); in ur_int_handler()
320 BUG_ON(!urd); in ur_int_handler()
323 urd->io_request_rc = PTR_ERR(irb); in ur_int_handler()
325 urd->io_request_rc = 0; in ur_int_handler()
327 urd->io_request_rc = -EIO; in ur_int_handler()
329 complete(urd->io_done); in ur_int_handler()
338 struct urdev *urd; in ur_attr_reclen_show() local
341 urd = urdev_get_from_cdev(to_ccwdev(dev)); in ur_attr_reclen_show()
342 if (!urd) in ur_attr_reclen_show()
344 rc = sprintf(buf, "%zu\n", urd->reclen); in ur_attr_reclen_show()
345 urdev_put(urd); in ur_attr_reclen_show()
368 static int get_urd_class(struct urdev *urd) in get_urd_class() argument
373 ur_diag210.vrdcdvno = urd->dev_id.devno; in get_urd_class()
392 static struct urfile *urfile_alloc(struct urdev *urd) in urfile_alloc() argument
399 urf->urd = urd; in urfile_alloc()
401 TRACE("urfile_alloc: urd=%p urf=%p rl=%zu\n", urd, urf, in urfile_alloc()
409 TRACE("urfile_free: urf=%p urd=%p\n", urf, urf->urd); in urfile_free()
416 static ssize_t do_write(struct urdev *urd, const char __user *udata, in do_write() argument
426 rc = do_ur_io(urd, cpa); in do_write()
430 if (urd->io_request_rc) { in do_write()
431 rc = urd->io_request_rc; in do_write()
458 return do_write(urf->urd, udata, count, urf->dev_reclen, ppos); in ur_write()
517 struct urdev *urd; in diag14_read() local
519 urd = ((struct urfile *) file->private_data)->urd; in diag14_read()
522 rc = diag_position_to_record(urd->dev_id.devno, *offs / PAGE_SIZE + 1); in diag14_read()
536 rc = diag_read_file(urd->dev_id.devno, buf); in diag14_read()
563 struct urdev *urd; in ur_read() local
571 urd = ((struct urfile *) file->private_data)->urd; in ur_read()
572 rc = mutex_lock_interruptible(&urd->io_mutex); in ur_read()
576 mutex_unlock(&urd->io_mutex); in ur_read()
599 static int verify_uri_device(struct urdev *urd) in verify_uri_device() argument
626 rc = diag_read_file(urd->dev_id.devno, buf); in verify_uri_device()
647 static int verify_device(struct urdev *urd) in verify_device() argument
649 switch (urd->class) { in verify_device()
653 return verify_uri_device(urd); in verify_device()
659 static int get_uri_file_reclen(struct urdev *urd) in get_uri_file_reclen() argument
680 static int get_file_reclen(struct urdev *urd) in get_file_reclen() argument
682 switch (urd->class) { in get_file_reclen()
686 return get_uri_file_reclen(urd); in get_file_reclen()
695 struct urdev *urd; in ur_open() local
710 urd = urdev_get_from_devno(devno); in ur_open()
711 if (!urd) { in ur_open()
716 spin_lock(&urd->open_lock); in ur_open()
717 while (urd->open_flag) { in ur_open()
718 spin_unlock(&urd->open_lock); in ur_open()
723 if (wait_event_interruptible(urd->wait, urd->open_flag == 0)) { in ur_open()
727 spin_lock(&urd->open_lock); in ur_open()
729 urd->open_flag++; in ur_open()
730 spin_unlock(&urd->open_lock); in ur_open()
734 if (((accmode == O_RDONLY) && (urd->class != DEV_CLASS_UR_I)) || in ur_open()
735 ((accmode == O_WRONLY) && (urd->class != DEV_CLASS_UR_O))) { in ur_open()
736 TRACE("ur_open: unsupported dev class (%d)\n", urd->class); in ur_open()
741 rc = verify_device(urd); in ur_open()
745 urf = urfile_alloc(urd); in ur_open()
751 urf->dev_reclen = urd->reclen; in ur_open()
752 rc = get_file_reclen(urd); in ur_open()
762 spin_lock(&urd->open_lock); in ur_open()
763 urd->open_flag--; in ur_open()
764 spin_unlock(&urd->open_lock); in ur_open()
766 urdev_put(urd); in ur_open()
776 spin_lock(&urf->urd->open_lock); in ur_release()
777 urf->urd->open_flag--; in ur_release()
778 spin_unlock(&urf->urd->open_lock); in ur_release()
779 wake_up_interruptible(&urf->urd->wait); in ur_release()
780 urdev_put(urf->urd); in ur_release()
819 struct urdev *urd; in ur_probe() local
825 urd = urdev_alloc(cdev); in ur_probe()
826 if (!urd) { in ur_probe()
839 urd->class = get_urd_class(urd); in ur_probe()
840 if (urd->class < 0) { in ur_probe()
841 rc = urd->class; in ur_probe()
844 if ((urd->class != DEV_CLASS_UR_I) && (urd->class != DEV_CLASS_UR_O)) { in ur_probe()
849 dev_set_drvdata(&cdev->dev, urd); in ur_probe()
858 urdev_put(urd); in ur_probe()
866 struct urdev *urd; in ur_set_online() local
873 urd = urdev_get_from_cdev(cdev); in ur_set_online()
874 if (!urd) { in ur_set_online()
880 if (urd->char_device) { in ur_set_online()
886 minor = urd->dev_id.devno; in ur_set_online()
889 urd->char_device = cdev_alloc(); in ur_set_online()
890 if (!urd->char_device) { in ur_set_online()
895 urd->char_device->ops = &ur_fops; in ur_set_online()
896 urd->char_device->owner = ur_fops.owner; in ur_set_online()
898 rc = cdev_add(urd->char_device, MKDEV(major, minor), 1); in ur_set_online()
901 if (urd->cdev->id.cu_type == READER_PUNCH_DEVTYPE) { in ur_set_online()
902 if (urd->class == DEV_CLASS_UR_I) in ur_set_online()
904 if (urd->class == DEV_CLASS_UR_O) in ur_set_online()
906 } else if (urd->cdev->id.cu_type == PRINTER_DEVTYPE) { in ur_set_online()
913 urd->device = device_create(vmur_class, &cdev->dev, in ur_set_online()
914 urd->char_device->dev, NULL, "%s", node_id); in ur_set_online()
915 if (IS_ERR(urd->device)) { in ur_set_online()
916 rc = PTR_ERR(urd->device); in ur_set_online()
920 urdev_put(urd); in ur_set_online()
925 cdev_del(urd->char_device); in ur_set_online()
926 urd->char_device = NULL; in ur_set_online()
928 urdev_put(urd); in ur_set_online()
936 struct urdev *urd; in ur_set_offline_force() local
940 urd = urdev_get_from_cdev(cdev); in ur_set_offline_force()
941 if (!urd) in ur_set_offline_force()
944 if (!urd->char_device) { in ur_set_offline_force()
949 if (!force && (refcount_read(&urd->ref_count) > 2)) { in ur_set_offline_force()
955 device_destroy(vmur_class, urd->char_device->dev); in ur_set_offline_force()
956 cdev_del(urd->char_device); in ur_set_offline_force()
957 urd->char_device = NULL; in ur_set_offline_force()
961 urdev_put(urd); in ur_set_offline_force()