Lines Matching defs:raw
143 static void raw3215_mk_read_req(struct raw3215_info *raw)
149 req = raw->queued_read;
154 req->info = raw;
155 raw->queued_read = req;
162 ccw->cda = (__u32) __pa(raw->inbuf);
171 static void raw3215_mk_write_req(struct raw3215_info *raw)
177 if (raw->count <= raw->written)
180 req = raw->queued_write;
185 req->info = raw;
186 raw->queued_write = req;
188 raw->written -= req->len;
192 req->start = (raw->head - raw->count + raw->written) &
201 while (lines < RAW3215_MAX_NEWLINE && ix != raw->head) {
202 if (raw->buffer[ix] == 0x15)
210 raw->written += len;
213 req->delayable = (ix == raw->head) && (len < RAW3215_MIN_WRITE);
222 (__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 if (!tty_port_suspended(&raw->port)) {
293 raw3215_mk_write_req(raw);
294 raw3215_start_io(raw);
295 if ((raw->queued_read || raw->queued_write) &&
296 !(raw->flags & RAW3215_WORKING) &&
297 !(raw->flags & RAW3215_TIMER_RUNS)) {
298 raw->timer.expires = RAW3215_TIMEOUT + jiffies;
299 add_timer(&raw->timer);
300 raw->flags |= RAW3215_TIMER_RUNS;
303 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
312 static inline void raw3215_try_io(struct raw3215_info *raw)
314 if (!tty_port_initialized(&raw->port) || tty_port_suspended(&raw->port))
316 if (raw->queued_read != NULL)
317 raw3215_start_io(raw);
318 else if (raw->queued_write != NULL) {
319 if ((raw->queued_write->delayable == 0) ||
320 (raw->flags & RAW3215_FLUSHING)) {
322 raw3215_start_io(raw);
325 if ((raw->queued_read || raw->queued_write) &&
326 !(raw->flags & RAW3215_WORKING) &&
327 !(raw->flags & RAW3215_TIMER_RUNS)) {
328 raw->timer.expires = RAW3215_TIMEOUT + jiffies;
329 add_timer(&raw->timer);
330 raw->flags |= RAW3215_TIMER_RUNS;
339 struct raw3215_info *raw = (struct raw3215_info *) data;
342 tty = tty_port_tty_get(&raw->port);
352 static void raw3215_next_io(struct raw3215_info *raw, struct tty_struct *tty)
354 raw3215_mk_write_req(raw);
355 raw3215_try_io(raw);
356 if (tty && RAW3215_BUFFER_SIZE - raw->count >= RAW3215_MIN_SPACE)
357 tasklet_schedule(&raw->tlet);
366 struct raw3215_info *raw;
372 raw = dev_get_drvdata(&cdev->dev);
374 tty = tty_port_tty_get(&raw->port);
378 raw3215_next_io(raw, tty);
387 raw3215_mk_read_req(raw);
388 raw3215_next_io(raw, tty);
393 if ((raw = req->info) == NULL)
404 if ((raw = req->info) == NULL)
410 EBCASC(raw->inbuf, count);
411 cchar = ctrlchar_handle(raw->inbuf, count, tty);
417 tty_insert_flip_char(&raw->port, cchar,
419 tty_flip_buffer_push(&raw->port);
424 (strncmp(raw->inbuf+count-2, "\252n", 2) &&
425 strncmp(raw->inbuf+count-2, "^n", 2)) ) {
427 raw->inbuf[count] = '\n';
431 tty_insert_flip_string(&raw->port, raw->inbuf,
433 tty_flip_buffer_push(&raw->port);
437 raw->count -= req->len;
438 raw->written -= req->len;
440 raw->flags &= ~RAW3215_WORKING;
443 if (waitqueue_active(&raw->empty_wait) &&
444 raw->queued_write == NULL &&
445 raw->queued_read == NULL) {
446 wake_up_interruptible(&raw->empty_wait);
448 raw3215_next_io(raw, tty);
454 raw->count -= req->len;
455 raw->written -= req->len;
457 raw->flags &= ~RAW3215_WORKING;
460 raw3215_next_io(raw, tty);
469 static void raw3215_drop_line(struct raw3215_info *raw)
474 BUG_ON(raw->written != 0);
475 ix = (raw->head - raw->count) & (RAW3215_BUFFER_SIZE - 1);
476 while (raw->count > 0) {
477 ch = raw->buffer[ix];
479 raw->count--;
483 raw->head = ix;
491 static void raw3215_make_room(struct raw3215_info *raw, unsigned int length)
493 while (RAW3215_BUFFER_SIZE - raw->count < length) {
497 if (tty_port_suspended(&raw->port)) {
498 raw3215_drop_line(raw);
502 raw->flags |= RAW3215_FLUSHING;
503 raw3215_mk_write_req(raw);
504 raw3215_try_io(raw);
505 raw->flags &= ~RAW3215_FLUSHING;
507 ccw_device_wait_idle(raw->cdev);
510 if (RAW3215_BUFFER_SIZE - raw->count >= length)
513 spin_unlock(get_ccwdev_lock(raw->cdev));
515 spin_lock(get_ccwdev_lock(raw->cdev));
522 static void raw3215_write(struct raw3215_info *raw, const char *str,
529 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
534 raw3215_make_room(raw, count);
539 min(RAW3215_BUFFER_SIZE - raw->count,
540 RAW3215_BUFFER_SIZE - raw->head));
543 memcpy(raw->buffer + raw->head, str, c);
544 ASCEBC(raw->buffer + raw->head, c);
545 raw->head = (raw->head + c) & (RAW3215_BUFFER_SIZE - 1);
546 raw->count += c;
547 raw->line_pos += c;
551 if (!(raw->flags & RAW3215_WORKING)) {
552 raw3215_mk_write_req(raw);
554 raw3215_try_io(raw);
556 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
563 static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
568 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
570 length = TAB_STOP_SIZE - (raw->line_pos%TAB_STOP_SIZE);
571 raw->line_pos += length;
575 raw->line_pos = 0;
578 raw->line_pos++;
580 raw3215_make_room(raw, length);
583 raw->buffer[raw->head] = (char) _ascebc[(int) ch];
584 raw->head = (raw->head + 1) & (RAW3215_BUFFER_SIZE - 1);
585 raw->count++;
587 if (!(raw->flags & RAW3215_WORKING)) {
588 raw3215_mk_write_req(raw);
590 raw3215_try_io(raw);
592 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
599 static void raw3215_flush_buffer(struct raw3215_info *raw)
603 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
604 if (raw->count > 0) {
605 raw->flags |= RAW3215_FLUSHING;
606 raw3215_try_io(raw);
607 raw->flags &= ~RAW3215_FLUSHING;
609 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
615 static int raw3215_startup(struct raw3215_info *raw)
619 if (tty_port_initialized(&raw->port))
621 raw->line_pos = 0;
622 tty_port_set_initialized(&raw->port, 1);
623 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
624 raw3215_try_io(raw);
625 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
633 static void raw3215_shutdown(struct raw3215_info *raw)
638 if (!tty_port_initialized(&raw->port) || (raw->flags & RAW3215_FIXED))
641 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
642 if ((raw->flags & RAW3215_WORKING) ||
643 raw->queued_write != NULL ||
644 raw->queued_read != NULL) {
645 add_wait_queue(&raw->empty_wait, &wait);
647 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
649 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
650 remove_wait_queue(&raw->empty_wait, &wait);
652 tty_port_set_initialized(&raw->port, 1);
654 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
682 static void raw3215_free_info(struct raw3215_info *raw)
684 kfree(raw->inbuf);
685 kfree(raw->buffer);
686 tty_port_destroy(&raw->port);
687 kfree(raw);
692 struct raw3215_info *raw;
699 raw = raw3215_alloc_info();
700 if (raw == NULL)
703 raw->cdev = cdev;
704 dev_set_drvdata(&cdev->dev, raw);
710 raw3215[line] = raw;
716 raw3215_free_info(raw);
725 struct raw3215_info *raw;
729 raw = dev_get_drvdata(&cdev->dev);
730 if (raw) {
733 if (raw3215[line] == raw)
738 raw3215_free_info(raw);
744 struct raw3215_info *raw;
746 raw = dev_get_drvdata(&cdev->dev);
747 if (!raw)
750 return raw3215_startup(raw);
755 struct raw3215_info *raw;
757 raw = dev_get_drvdata(&cdev->dev);
758 if (!raw)
761 raw3215_shutdown(raw);
768 struct raw3215_info *raw;
772 raw = dev_get_drvdata(&cdev->dev);
773 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
774 raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
775 tty_port_set_suspended(&raw->port, 1);
776 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
782 struct raw3215_info *raw;
786 raw = dev_get_drvdata(&cdev->dev);
787 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
788 tty_port_set_suspended(&raw->port, 0);
789 raw->flags |= RAW3215_FLUSHING;
790 raw3215_try_io(raw);
791 raw->flags &= ~RAW3215_FLUSHING;
792 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
824 struct raw3215_info *raw;
829 raw = raw3215[0]; /* console 3215 is the first one */
834 raw3215_write(raw, str, i);
838 raw3215_putchar(raw, *str);
857 struct raw3215_info *raw;
860 raw = raw3215[0]; /* console 3215 is the first one */
861 if (tty_port_suspended(&raw->port))
863 if (ccw_device_force_console(raw->cdev))
866 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
867 raw3215_make_room(raw, RAW3215_BUFFER_SIZE);
868 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
904 struct raw3215_info *raw;
933 raw3215[0] = raw = raw3215_alloc_info();
934 raw->cdev = cdev;
935 dev_set_drvdata(&cdev->dev, raw);
938 raw->flags |= RAW3215_FIXED;
941 raw3215_free_info(raw);
947 if (raw3215_startup(raw) != 0) {
948 raw3215_free_info(raw);
962 struct raw3215_info *raw;
964 raw = raw3215[tty->index];
965 if (raw == NULL)
968 tty->driver_data = raw;
970 return tty_port_install(&raw->port, driver, tty);
980 struct raw3215_info *raw = tty->driver_data;
982 tty_port_tty_set(&raw->port, tty);
984 raw->port.low_latency = 0; /* don't use bottom half for pushing chars */
988 return raw3215_startup(raw);
999 struct raw3215_info *raw;
1001 raw = (struct raw3215_info *) tty->driver_data;
1002 if (raw == NULL || tty->count > 1)
1006 raw3215_shutdown(raw);
1007 tasklet_kill(&raw->tlet);
1009 tty_port_tty_set(&raw->port, NULL);
1017 struct raw3215_info *raw;
1019 raw = (struct raw3215_info *) tty->driver_data;
1022 if ((RAW3215_BUFFER_SIZE - raw->count - TAB_STOP_SIZE) >= 0)
1023 return RAW3215_BUFFER_SIZE - raw->count - TAB_STOP_SIZE;
1034 struct raw3215_info *raw;
1039 raw = (struct raw3215_info *) tty->driver_data;
1045 raw3215_write(raw, buf, i);
1049 raw3215_putchar(raw, *buf);
1062 struct raw3215_info *raw;
1066 raw = (struct raw3215_info *) tty->driver_data;
1067 raw3215_putchar(raw, ch);
1080 struct raw3215_info *raw;
1082 raw = (struct raw3215_info *) tty->driver_data;
1083 return raw->count;
1088 struct raw3215_info *raw;
1090 raw = (struct raw3215_info *) tty->driver_data;
1091 raw3215_flush_buffer(raw);
1100 struct raw3215_info *raw;
1102 raw = (struct raw3215_info *) tty->driver_data;
1103 raw->flags |= RAW3215_THROTTLED;
1111 struct raw3215_info *raw;
1114 raw = (struct raw3215_info *) tty->driver_data;
1115 if (raw->flags & RAW3215_THROTTLED) {
1116 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
1117 raw->flags &= ~RAW3215_THROTTLED;
1118 raw3215_try_io(raw);
1119 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);
1128 struct raw3215_info *raw;
1130 raw = (struct raw3215_info *) tty->driver_data;
1131 raw->flags |= RAW3215_STOPPED;
1139 struct raw3215_info *raw;
1142 raw = (struct raw3215_info *) tty->driver_data;
1143 if (raw->flags & RAW3215_STOPPED) {
1144 spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags);
1145 raw->flags &= ~RAW3215_STOPPED;
1146 raw3215_try_io(raw);
1147 spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags);