Lines Matching refs:raw
143 static void raw3215_mk_read_req(struct raw3215_info *raw) in raw3215_mk_read_req() argument
149 req = raw->queued_read; in raw3215_mk_read_req()
154 req->info = raw; in raw3215_mk_read_req()
155 raw->queued_read = req; in raw3215_mk_read_req()
162 ccw->cda = (__u32) __pa(raw->inbuf); in raw3215_mk_read_req()
171 static void raw3215_mk_write_req(struct raw3215_info *raw) in raw3215_mk_write_req() argument
177 if (raw->count <= raw->written) in raw3215_mk_write_req()
180 req = raw->queued_write; in raw3215_mk_write_req()
185 req->info = raw; in raw3215_mk_write_req()
186 raw->queued_write = req; in raw3215_mk_write_req()
188 raw->written -= req->len; in raw3215_mk_write_req()
192 req->start = (raw->head - raw->count + raw->written) & in raw3215_mk_write_req()
201 while (lines < RAW3215_MAX_NEWLINE && ix != raw->head) { in raw3215_mk_write_req()
202 if (raw->buffer[ix] == 0x15) in raw3215_mk_write_req()
210 raw->written += len; in raw3215_mk_write_req()
213 req->delayable = (ix == raw->head) && (len < RAW3215_MIN_WRITE); in raw3215_mk_write_req()
222 (__u32) __pa(raw->buffer + ix); in raw3215_mk_write_req()
247 static void raw3215_start_io(struct raw3215_info *raw) in raw3215_start_io() argument
252 req = raw->queued_read; in raw3215_start_io()
254 !(raw->flags & (RAW3215_WORKING | RAW3215_THROTTLED))) { in raw3215_start_io()
256 raw->queued_read = NULL; in raw3215_start_io()
257 res = ccw_device_start(raw->cdev, req->ccws, in raw3215_start_io()
261 raw->queued_read = req; in raw3215_start_io()
263 raw->flags |= RAW3215_WORKING; in raw3215_start_io()
266 req = raw->queued_write; in raw3215_start_io()
268 !(raw->flags & (RAW3215_WORKING | RAW3215_STOPPED))) { in raw3215_start_io()
270 raw->queued_write = NULL; in raw3215_start_io()
271 res = ccw_device_start(raw->cdev, req->ccws, in raw3215_start_io()
275 raw->queued_write = req; in raw3215_start_io()
277 raw->flags |= RAW3215_WORKING; in raw3215_start_io()
287 struct raw3215_info *raw = from_timer(raw, t, timer); in raw3215_timeout() local
290 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_timeout()
291 raw->flags &= ~RAW3215_TIMER_RUNS; in raw3215_timeout()
292 if (!tty_port_suspended(&raw->port)) { in raw3215_timeout()
293 raw3215_mk_write_req(raw); in raw3215_timeout()
294 raw3215_start_io(raw); in raw3215_timeout()
295 if ((raw->queued_read || raw->queued_write) && in raw3215_timeout()
296 !(raw->flags & RAW3215_WORKING) && in raw3215_timeout()
297 !(raw->flags & RAW3215_TIMER_RUNS)) { in raw3215_timeout()
298 raw->timer.expires = RAW3215_TIMEOUT + jiffies; in raw3215_timeout()
299 add_timer(&raw->timer); in raw3215_timeout()
300 raw->flags |= RAW3215_TIMER_RUNS; in raw3215_timeout()
303 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_timeout()
312 static inline void raw3215_try_io(struct raw3215_info *raw) in raw3215_try_io() argument
314 if (!tty_port_initialized(&raw->port) || tty_port_suspended(&raw->port)) in raw3215_try_io()
316 if (raw->queued_read != NULL) in raw3215_try_io()
317 raw3215_start_io(raw); in raw3215_try_io()
318 else if (raw->queued_write != NULL) { in raw3215_try_io()
319 if ((raw->queued_write->delayable == 0) || in raw3215_try_io()
320 (raw->flags & RAW3215_FLUSHING)) { in raw3215_try_io()
322 raw3215_start_io(raw); in raw3215_try_io()
325 if ((raw->queued_read || raw->queued_write) && in raw3215_try_io()
326 !(raw->flags & RAW3215_WORKING) && in raw3215_try_io()
327 !(raw->flags & RAW3215_TIMER_RUNS)) { in raw3215_try_io()
328 raw->timer.expires = RAW3215_TIMEOUT + jiffies; in raw3215_try_io()
329 add_timer(&raw->timer); in raw3215_try_io()
330 raw->flags |= RAW3215_TIMER_RUNS; in raw3215_try_io()
339 struct raw3215_info *raw = (struct raw3215_info *) data; in raw3215_wakeup() local
342 tty = tty_port_tty_get(&raw->port); in raw3215_wakeup()
352 static void raw3215_next_io(struct raw3215_info *raw, struct tty_struct *tty) in raw3215_next_io() argument
354 raw3215_mk_write_req(raw); in raw3215_next_io()
355 raw3215_try_io(raw); in raw3215_next_io()
356 if (tty && RAW3215_BUFFER_SIZE - raw->count >= RAW3215_MIN_SPACE) in raw3215_next_io()
357 tasklet_schedule(&raw->tlet); in raw3215_next_io()
366 struct raw3215_info *raw; in raw3215_irq() local
372 raw = dev_get_drvdata(&cdev->dev); in raw3215_irq()
374 tty = tty_port_tty_get(&raw->port); in raw3215_irq()
378 raw3215_next_io(raw, tty); in raw3215_irq()
387 raw3215_mk_read_req(raw); in raw3215_irq()
388 raw3215_next_io(raw, tty); in raw3215_irq()
393 if ((raw = req->info) == NULL) in raw3215_irq()
403 if ((raw = req->info) == NULL) in raw3215_irq()
409 EBCASC(raw->inbuf, count); in raw3215_irq()
410 cchar = ctrlchar_handle(raw->inbuf, count, tty); in raw3215_irq()
416 tty_insert_flip_char(&raw->port, cchar, in raw3215_irq()
418 tty_flip_buffer_push(&raw->port); in raw3215_irq()
423 (strncmp(raw->inbuf+count-2, "\252n", 2) && in raw3215_irq()
424 strncmp(raw->inbuf+count-2, "^n", 2)) ) { in raw3215_irq()
426 raw->inbuf[count] = '\n'; in raw3215_irq()
430 tty_insert_flip_string(&raw->port, raw->inbuf, in raw3215_irq()
432 tty_flip_buffer_push(&raw->port); in raw3215_irq()
436 raw->count -= req->len; in raw3215_irq()
437 raw->written -= req->len; in raw3215_irq()
439 raw->flags &= ~RAW3215_WORKING; in raw3215_irq()
442 if (waitqueue_active(&raw->empty_wait) && in raw3215_irq()
443 raw->queued_write == NULL && in raw3215_irq()
444 raw->queued_read == NULL) { in raw3215_irq()
445 wake_up_interruptible(&raw->empty_wait); in raw3215_irq()
447 raw3215_next_io(raw, tty); in raw3215_irq()
453 raw->count -= req->len; in raw3215_irq()
454 raw->written -= req->len; in raw3215_irq()
456 raw->flags &= ~RAW3215_WORKING; in raw3215_irq()
459 raw3215_next_io(raw, tty); in raw3215_irq()
468 static void raw3215_drop_line(struct raw3215_info *raw) in raw3215_drop_line() argument
473 BUG_ON(raw->written != 0); in raw3215_drop_line()
474 ix = (raw->head - raw->count) & (RAW3215_BUFFER_SIZE - 1); in raw3215_drop_line()
475 while (raw->count > 0) { in raw3215_drop_line()
476 ch = raw->buffer[ix]; in raw3215_drop_line()
478 raw->count--; in raw3215_drop_line()
482 raw->head = ix; in raw3215_drop_line()
490 static void raw3215_make_room(struct raw3215_info *raw, unsigned int length) in raw3215_make_room() argument
492 while (RAW3215_BUFFER_SIZE - raw->count < length) { in raw3215_make_room()
496 if (tty_port_suspended(&raw->port)) { in raw3215_make_room()
497 raw3215_drop_line(raw); in raw3215_make_room()
501 raw->flags |= RAW3215_FLUSHING; in raw3215_make_room()
502 raw3215_mk_write_req(raw); in raw3215_make_room()
503 raw3215_try_io(raw); in raw3215_make_room()
504 raw->flags &= ~RAW3215_FLUSHING; in raw3215_make_room()
506 ccw_device_wait_idle(raw->cdev); in raw3215_make_room()
509 if (RAW3215_BUFFER_SIZE - raw->count >= length) in raw3215_make_room()
512 spin_unlock(get_ccwdev_lock(raw->cdev)); in raw3215_make_room()
514 spin_lock(get_ccwdev_lock(raw->cdev)); in raw3215_make_room()
521 static void raw3215_write(struct raw3215_info *raw, const char *str, in raw3215_write() argument
528 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_write()
533 raw3215_make_room(raw, count); in raw3215_write()
538 min(RAW3215_BUFFER_SIZE - raw->count, in raw3215_write()
539 RAW3215_BUFFER_SIZE - raw->head)); in raw3215_write()
542 memcpy(raw->buffer + raw->head, str, c); in raw3215_write()
543 ASCEBC(raw->buffer + raw->head, c); in raw3215_write()
544 raw->head = (raw->head + c) & (RAW3215_BUFFER_SIZE - 1); in raw3215_write()
545 raw->count += c; in raw3215_write()
546 raw->line_pos += c; in raw3215_write()
550 if (!(raw->flags & RAW3215_WORKING)) { in raw3215_write()
551 raw3215_mk_write_req(raw); in raw3215_write()
553 raw3215_try_io(raw); in raw3215_write()
555 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_write()
562 static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch) in raw3215_putchar() argument
567 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_putchar()
569 length = TAB_STOP_SIZE - (raw->line_pos%TAB_STOP_SIZE); in raw3215_putchar()
570 raw->line_pos += length; in raw3215_putchar()
574 raw->line_pos = 0; in raw3215_putchar()
577 raw->line_pos++; in raw3215_putchar()
579 raw3215_make_room(raw, length); in raw3215_putchar()
582 raw->buffer[raw->head] = (char) _ascebc[(int) ch]; in raw3215_putchar()
583 raw->head = (raw->head + 1) & (RAW3215_BUFFER_SIZE - 1); in raw3215_putchar()
584 raw->count++; in raw3215_putchar()
586 if (!(raw->flags & RAW3215_WORKING)) { in raw3215_putchar()
587 raw3215_mk_write_req(raw); in raw3215_putchar()
589 raw3215_try_io(raw); in raw3215_putchar()
591 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_putchar()
598 static void raw3215_flush_buffer(struct raw3215_info *raw) in raw3215_flush_buffer() argument
602 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_flush_buffer()
603 if (raw->count > 0) { in raw3215_flush_buffer()
604 raw->flags |= RAW3215_FLUSHING; in raw3215_flush_buffer()
605 raw3215_try_io(raw); in raw3215_flush_buffer()
606 raw->flags &= ~RAW3215_FLUSHING; in raw3215_flush_buffer()
608 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_flush_buffer()
614 static int raw3215_startup(struct raw3215_info *raw) in raw3215_startup() argument
618 if (tty_port_initialized(&raw->port)) in raw3215_startup()
620 raw->line_pos = 0; in raw3215_startup()
621 tty_port_set_initialized(&raw->port, 1); in raw3215_startup()
622 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_startup()
623 raw3215_try_io(raw); in raw3215_startup()
624 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_startup()
632 static void raw3215_shutdown(struct raw3215_info *raw) in raw3215_shutdown() argument
637 if (!tty_port_initialized(&raw->port) || (raw->flags & RAW3215_FIXED)) in raw3215_shutdown()
640 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_shutdown()
641 if ((raw->flags & RAW3215_WORKING) || in raw3215_shutdown()
642 raw->queued_write != NULL || in raw3215_shutdown()
643 raw->queued_read != NULL) { in raw3215_shutdown()
644 add_wait_queue(&raw->empty_wait, &wait); in raw3215_shutdown()
646 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_shutdown()
648 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_shutdown()
649 remove_wait_queue(&raw->empty_wait, &wait); in raw3215_shutdown()
651 tty_port_set_initialized(&raw->port, 1); in raw3215_shutdown()
653 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_shutdown()
681 static void raw3215_free_info(struct raw3215_info *raw) in raw3215_free_info() argument
683 kfree(raw->inbuf); in raw3215_free_info()
684 kfree(raw->buffer); in raw3215_free_info()
685 tty_port_destroy(&raw->port); in raw3215_free_info()
686 kfree(raw); in raw3215_free_info()
691 struct raw3215_info *raw; in raw3215_probe() local
698 raw = raw3215_alloc_info(); in raw3215_probe()
699 if (raw == NULL) in raw3215_probe()
702 raw->cdev = cdev; in raw3215_probe()
703 dev_set_drvdata(&cdev->dev, raw); in raw3215_probe()
709 raw3215[line] = raw; in raw3215_probe()
715 raw3215_free_info(raw); in raw3215_probe()
724 struct raw3215_info *raw; in raw3215_remove() local
728 raw = dev_get_drvdata(&cdev->dev); in raw3215_remove()
729 if (raw) { in raw3215_remove()
732 if (raw3215[line] == raw) in raw3215_remove()
737 raw3215_free_info(raw); in raw3215_remove()
743 struct raw3215_info *raw; in raw3215_set_online() local
745 raw = dev_get_drvdata(&cdev->dev); in raw3215_set_online()
746 if (!raw) in raw3215_set_online()
749 return raw3215_startup(raw); in raw3215_set_online()
754 struct raw3215_info *raw; in raw3215_set_offline() local
756 raw = dev_get_drvdata(&cdev->dev); in raw3215_set_offline()
757 if (!raw) in raw3215_set_offline()
760 raw3215_shutdown(raw); in raw3215_set_offline()
767 struct raw3215_info *raw; in raw3215_pm_stop() local
771 raw = dev_get_drvdata(&cdev->dev); in raw3215_pm_stop()
772 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_pm_stop()
773 raw3215_make_room(raw, RAW3215_BUFFER_SIZE); in raw3215_pm_stop()
774 tty_port_set_suspended(&raw->port, 1); in raw3215_pm_stop()
775 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_pm_stop()
781 struct raw3215_info *raw; in raw3215_pm_start() local
785 raw = dev_get_drvdata(&cdev->dev); in raw3215_pm_start()
786 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in raw3215_pm_start()
787 tty_port_set_suspended(&raw->port, 0); in raw3215_pm_start()
788 raw->flags |= RAW3215_FLUSHING; in raw3215_pm_start()
789 raw3215_try_io(raw); in raw3215_pm_start()
790 raw->flags &= ~RAW3215_FLUSHING; in raw3215_pm_start()
791 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in raw3215_pm_start()
823 struct raw3215_info *raw; in con3215_write() local
828 raw = raw3215[0]; /* console 3215 is the first one */ in con3215_write()
833 raw3215_write(raw, str, i); in con3215_write()
837 raw3215_putchar(raw, *str); in con3215_write()
856 struct raw3215_info *raw; in con3215_flush() local
859 raw = raw3215[0]; /* console 3215 is the first one */ in con3215_flush()
860 if (tty_port_suspended(&raw->port)) in con3215_flush()
862 if (ccw_device_force_console(raw->cdev)) in con3215_flush()
865 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in con3215_flush()
866 raw3215_make_room(raw, RAW3215_BUFFER_SIZE); in con3215_flush()
867 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in con3215_flush()
903 struct raw3215_info *raw; in con3215_init() local
932 raw3215[0] = raw = raw3215_alloc_info(); in con3215_init()
933 raw->cdev = cdev; in con3215_init()
934 dev_set_drvdata(&cdev->dev, raw); in con3215_init()
937 raw->flags |= RAW3215_FIXED; in con3215_init()
940 raw3215_free_info(raw); in con3215_init()
946 if (raw3215_startup(raw) != 0) { in con3215_init()
947 raw3215_free_info(raw); in con3215_init()
961 struct raw3215_info *raw; in tty3215_install() local
963 raw = raw3215[tty->index]; in tty3215_install()
964 if (raw == NULL) in tty3215_install()
967 tty->driver_data = raw; in tty3215_install()
969 return tty_port_install(&raw->port, driver, tty); in tty3215_install()
979 struct raw3215_info *raw = tty->driver_data; in tty3215_open() local
982 tty_port_tty_set(&raw->port, tty); in tty3215_open()
984 raw->port.low_latency = 0; /* don't use bottom half for pushing chars */ in tty3215_open()
988 retval = raw3215_startup(raw); in tty3215_open()
1003 struct raw3215_info *raw; in tty3215_close() local
1005 raw = (struct raw3215_info *) tty->driver_data; in tty3215_close()
1006 if (raw == NULL || tty->count > 1) in tty3215_close()
1010 raw3215_shutdown(raw); in tty3215_close()
1011 tasklet_kill(&raw->tlet); in tty3215_close()
1013 tty_port_tty_set(&raw->port, NULL); in tty3215_close()
1021 struct raw3215_info *raw; in tty3215_write_room() local
1023 raw = (struct raw3215_info *) tty->driver_data; in tty3215_write_room()
1026 if ((RAW3215_BUFFER_SIZE - raw->count - TAB_STOP_SIZE) >= 0) in tty3215_write_room()
1027 return RAW3215_BUFFER_SIZE - raw->count - TAB_STOP_SIZE; in tty3215_write_room()
1038 struct raw3215_info *raw; in tty3215_write() local
1043 raw = (struct raw3215_info *) tty->driver_data; in tty3215_write()
1049 raw3215_write(raw, buf, i); in tty3215_write()
1053 raw3215_putchar(raw, *buf); in tty3215_write()
1066 struct raw3215_info *raw; in tty3215_put_char() local
1070 raw = (struct raw3215_info *) tty->driver_data; in tty3215_put_char()
1071 raw3215_putchar(raw, ch); in tty3215_put_char()
1084 struct raw3215_info *raw; in tty3215_chars_in_buffer() local
1086 raw = (struct raw3215_info *) tty->driver_data; in tty3215_chars_in_buffer()
1087 return raw->count; in tty3215_chars_in_buffer()
1092 struct raw3215_info *raw; in tty3215_flush_buffer() local
1094 raw = (struct raw3215_info *) tty->driver_data; in tty3215_flush_buffer()
1095 raw3215_flush_buffer(raw); in tty3215_flush_buffer()
1104 struct raw3215_info *raw; in tty3215_throttle() local
1106 raw = (struct raw3215_info *) tty->driver_data; in tty3215_throttle()
1107 raw->flags |= RAW3215_THROTTLED; in tty3215_throttle()
1115 struct raw3215_info *raw; in tty3215_unthrottle() local
1118 raw = (struct raw3215_info *) tty->driver_data; in tty3215_unthrottle()
1119 if (raw->flags & RAW3215_THROTTLED) { in tty3215_unthrottle()
1120 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in tty3215_unthrottle()
1121 raw->flags &= ~RAW3215_THROTTLED; in tty3215_unthrottle()
1122 raw3215_try_io(raw); in tty3215_unthrottle()
1123 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in tty3215_unthrottle()
1132 struct raw3215_info *raw; in tty3215_stop() local
1134 raw = (struct raw3215_info *) tty->driver_data; in tty3215_stop()
1135 raw->flags |= RAW3215_STOPPED; in tty3215_stop()
1143 struct raw3215_info *raw; in tty3215_start() local
1146 raw = (struct raw3215_info *) tty->driver_data; in tty3215_start()
1147 if (raw->flags & RAW3215_STOPPED) { in tty3215_start()
1148 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); in tty3215_start()
1149 raw->flags &= ~RAW3215_STOPPED; in tty3215_start()
1150 raw3215_try_io(raw); in tty3215_start()
1151 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); in tty3215_start()