Lines Matching defs:raw
144 static void raw3215_mk_read_req(struct raw3215_info *raw)
150 req = raw->queued_read;
155 req->info = raw;
156 raw->queued_read = req;
163 ccw->cda = (__u32)__pa(raw->inbuf);
172 static void raw3215_mk_write_req(struct raw3215_info *raw)
178 if (raw->count <= raw->written)
181 req = raw->queued_write;
186 req->info = raw;
187 raw->queued_write = req;
189 raw->written -= req->len;
193 req->start = (raw->head - raw->count + raw->written) &
202 while (lines < RAW3215_MAX_NEWLINE && ix != raw->head) {
203 if (raw->buffer[ix] == 0x15)
211 raw->written += len;
214 req->delayable = (ix == raw->head) && (len < RAW3215_MIN_WRITE);
222 ccw->cda = (__u32)__pa(raw->buffer + ix);
247 static void raw3215_start_io(struct raw3215_info *raw)
252 req = raw->queued_read;
254 !(raw->flags & (RAW3215_WORKING | RAW3215_THROTTLED))) {
256 raw->queued_read = NULL;
257 res = ccw_device_start(raw->cdev, req->ccws,
261 raw->queued_read = req;
263 raw->flags |= RAW3215_WORKING;
266 req = raw->queued_write;
268 !(raw->flags & (RAW3215_WORKING | RAW3215_STOPPED))) {
270 raw->queued_write = NULL;
271 res = ccw_device_start(raw->cdev, req->ccws,
275 raw->queued_write = req;
277 raw->flags |= RAW3215_WORKING;
287 struct raw3215_info *raw = from_timer(raw, t, timer);
290 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
291 raw->flags &= ~RAW3215_TIMER_RUNS;
292 raw3215_mk_write_req(raw);
293 raw3215_start_io(raw);
294 if ((raw->queued_read || raw->queued_write) &&
295 !(raw->flags & RAW3215_WORKING) &&
296 !(raw->flags & RAW3215_TIMER_RUNS)) {
297 raw->timer.expires = RAW3215_TIMEOUT + jiffies;
298 add_timer(&raw->timer);
299 raw->flags |= RAW3215_TIMER_RUNS;
301 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
310 static inline void raw3215_try_io(struct raw3215_info *raw)
312 if (!tty_port_initialized(&raw->port))
314 if (raw->queued_read != NULL)
315 raw3215_start_io(raw);
316 else if (raw->queued_write != NULL) {
317 if ((raw->queued_write->delayable == 0) ||
318 (raw->flags & RAW3215_FLUSHING)) {
320 raw3215_start_io(raw);
323 if ((raw->queued_read || raw->queued_write) &&
324 !(raw->flags & RAW3215_WORKING) &&
325 !(raw->flags & RAW3215_TIMER_RUNS)) {
326 raw->timer.expires = RAW3215_TIMEOUT + jiffies;
327 add_timer(&raw->timer);
328 raw->flags |= RAW3215_TIMER_RUNS;
335 static void raw3215_next_io(struct raw3215_info *raw, struct tty_struct *tty)
337 raw3215_mk_write_req(raw);
338 raw3215_try_io(raw);
339 if (tty && RAW3215_BUFFER_SIZE - raw->count >= RAW3215_MIN_SPACE)
349 struct raw3215_info *raw;
355 raw = dev_get_drvdata(&cdev->dev);
357 tty = tty_port_tty_get(&raw->port);
361 raw3215_next_io(raw, tty);
370 raw3215_mk_read_req(raw);
371 raw3215_next_io(raw, tty);
376 if ((raw = req->info) == NULL)
387 if ((raw = req->info) == NULL)
393 EBCASC(raw->inbuf, count);
394 cchar = ctrlchar_handle(raw->inbuf, count, tty);
400 tty_insert_flip_char(&raw->port, cchar,
402 tty_flip_buffer_push(&raw->port);
407 (strncmp(raw->inbuf+count-2, "\252n", 2) &&
408 strncmp(raw->inbuf+count-2, "^n", 2)) ) {
410 raw->inbuf[count] = '\n';
414 tty_insert_flip_string(&raw->port, raw->inbuf,
416 tty_flip_buffer_push(&raw->port);
420 raw->count -= req->len;
421 raw->written -= req->len;
423 raw->flags &= ~RAW3215_WORKING;
426 if (waitqueue_active(&raw->empty_wait) &&
427 raw->queued_write == NULL &&
428 raw->queued_read == NULL) {
429 wake_up_interruptible(&raw->empty_wait);
431 raw3215_next_io(raw, tty);
437 raw->count -= req->len;
438 raw->written -= req->len;
440 raw->flags &= ~RAW3215_WORKING;
443 raw3215_next_io(raw, tty);
457 static unsigned int raw3215_drop(struct raw3215_info *raw)
461 req = raw->queued_write;
464 raw->written -= req->len;
466 raw->queued_write = NULL;
468 raw->head = (raw->head - raw->count + raw->written) &
470 raw->count = raw->written;
472 return RAW3215_BUFFER_SIZE - raw->count;
482 static unsigned int raw3215_make_room(struct raw3215_info *raw,
485 while (RAW3215_BUFFER_SIZE - raw->count < length) {
487 return raw3215_drop(raw);
490 raw->flags |= RAW3215_FLUSHING;
491 raw3215_mk_write_req(raw);
492 raw3215_try_io(raw);
493 raw->flags &= ~RAW3215_FLUSHING;
495 ccw_device_wait_idle(raw->cdev);
498 if (RAW3215_BUFFER_SIZE - raw->count >= length)
501 spin_unlock(get_ccwdev_lock(raw->cdev));
503 spin_lock(get_ccwdev_lock(raw->cdev));
527 struct raw3215_info *raw, int opmode,
531 unsigned int column = raw->line_pos;
562 raw->buffer[raw->head] = (char)_ascebc[(int)ch];
563 raw->head = (raw->head + 1) & (RAW3215_BUFFER_SIZE - 1);
564 raw->count++;
566 raw->line_pos = column;
574 static void raw3215_write(struct raw3215_info *raw, const char *str,
580 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
582 count = raw3215_addtext(str, length, raw, RAW3215_COUNT, 0);
584 avail = raw3215_make_room(raw, count, con3215_drop);
586 raw3215_addtext(str, length, raw, RAW3215_STORE,
589 if (!(raw->flags & RAW3215_WORKING)) {
590 raw3215_mk_write_req(raw);
592 raw3215_try_io(raw);
594 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
600 static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
602 raw3215_write(raw, &ch, 1);
609 static void raw3215_flush_buffer(struct raw3215_info *raw)
613 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
614 if (raw->count > 0) {
615 raw->flags |= RAW3215_FLUSHING;
616 raw3215_try_io(raw);
617 raw->flags &= ~RAW3215_FLUSHING;
619 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
625 static int raw3215_startup(struct raw3215_info *raw)
629 if (tty_port_initialized(&raw->port))
631 raw->line_pos = 0;
632 tty_port_set_initialized(&raw->port, true);
633 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
634 raw3215_try_io(raw);
635 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
643 static void raw3215_shutdown(struct raw3215_info *raw)
648 if (!tty_port_initialized(&raw->port) || (raw->flags & RAW3215_FIXED))
651 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
652 if ((raw->flags & RAW3215_WORKING) ||
653 raw->queued_write != NULL ||
654 raw->queued_read != NULL) {
655 add_wait_queue(&raw->empty_wait, &wait);
657 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
659 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
660 remove_wait_queue(&raw->empty_wait, &wait);
662 tty_port_set_initialized(&raw->port, true);
664 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
691 static void raw3215_free_info(struct raw3215_info *raw)
693 kfree(raw->inbuf);
694 kfree(raw->buffer);
695 tty_port_destroy(&raw->port);
696 kfree(raw);
701 struct raw3215_info *raw;
708 raw = raw3215_alloc_info();
709 if (raw == NULL)
712 raw->cdev = cdev;
713 dev_set_drvdata(&cdev->dev, raw);
719 raw3215[line] = raw;
725 raw3215_free_info(raw);
734 struct raw3215_info *raw;
738 raw = dev_get_drvdata(&cdev->dev);
739 if (raw) {
742 if (raw3215[line] == raw)
747 raw3215_free_info(raw);
753 struct raw3215_info *raw;
755 raw = dev_get_drvdata(&cdev->dev);
756 if (!raw)
759 return raw3215_startup(raw);
764 struct raw3215_info *raw;
766 raw = dev_get_drvdata(&cdev->dev);
767 if (!raw)
770 raw3215_shutdown(raw);
827 static void handle_write(struct raw3215_info *raw, const char *str, int count)
833 raw3215_write(raw, str, i);
865 struct raw3215_info *raw;
868 raw = raw3215[0]; /* console 3215 is the first one */
869 if (!spin_trylock_irqsave(get_ccwdev_lock(raw->cdev), flags))
871 raw3215_make_room(raw, RAW3215_BUFFER_SIZE, false);
872 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
903 struct raw3215_info *raw;
931 raw3215[0] = raw = raw3215_alloc_info();
932 raw->cdev = cdev;
933 dev_set_drvdata(&cdev->dev, raw);
936 raw->flags |= RAW3215_FIXED;
939 raw3215_free_info(raw);
945 if (raw3215_startup(raw) != 0) {
946 raw3215_free_info(raw);
960 struct raw3215_info *raw;
962 raw = raw3215[tty->index];
963 if (raw == NULL)
966 tty->driver_data = raw;
968 return tty_port_install(&raw->port, driver, tty);
978 struct raw3215_info *raw = tty->driver_data;
980 tty_port_tty_set(&raw->port, tty);
985 return raw3215_startup(raw);
996 struct raw3215_info *raw = tty->driver_data;
998 if (raw == NULL || tty->count > 1)
1002 raw3215_shutdown(raw);
1004 tty_port_tty_set(&raw->port, NULL);
1012 struct raw3215_info *raw = tty->driver_data;
1015 if ((RAW3215_BUFFER_SIZE - raw->count - TAB_STOP_SIZE) >= 0)
1016 return RAW3215_BUFFER_SIZE - raw->count - TAB_STOP_SIZE;
1036 struct raw3215_info *raw = tty->driver_data;
1038 raw3215_putchar(raw, ch);
1052 struct raw3215_info *raw = tty->driver_data;
1054 return raw->count;
1059 struct raw3215_info *raw = tty->driver_data;
1061 raw3215_flush_buffer(raw);
1070 struct raw3215_info *raw = tty->driver_data;
1072 raw->flags |= RAW3215_THROTTLED;
1080 struct raw3215_info *raw = tty->driver_data;
1083 if (raw->flags & RAW3215_THROTTLED) {
1084 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
1085 raw->flags &= ~RAW3215_THROTTLED;
1086 raw3215_try_io(raw);
1087 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
1096 struct raw3215_info *raw = tty->driver_data;
1098 raw->flags |= RAW3215_STOPPED;
1106 struct raw3215_info *raw = tty->driver_data;
1109 if (raw->flags & RAW3215_STOPPED) {
1110 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
1111 raw->flags &= ~RAW3215_STOPPED;
1112 raw3215_try_io(raw);
1113 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);