aboutsummaryrefslogtreecommitdiff
path: root/drivers/s390/char
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/char')
-rw-r--r--drivers/s390/char/con3215.c25
-rw-r--r--drivers/s390/char/sclp_tty.c21
-rw-r--r--drivers/s390/char/sclp_vt220.c12
3 files changed, 18 insertions, 40 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 75419cf9d35..1f060914cfa 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -16,6 +16,7 @@
#include <linux/types.h>
#include <linux/kdev_t.h>
#include <linux/tty.h>
+#include <linux/tty_flip.h>
#include <linux/vt_kern.h>
#include <linux/init.h>
#include <linux/console.h>
@@ -432,8 +433,6 @@ raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
if (count > slen)
count = slen;
} else
- if (count >= TTY_FLIPBUF_SIZE - tty->flip.count)
- count = TTY_FLIPBUF_SIZE - tty->flip.count - 1;
EBCASC(raw->inbuf, count);
cchar = ctrlchar_handle(raw->inbuf, count, tty);
switch (cchar & CTRLCHAR_MASK) {
@@ -441,28 +440,20 @@ raw3215_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
break;
case CTRLCHAR_CTRL:
- tty->flip.count++;
- *tty->flip.flag_buf_ptr++ = TTY_NORMAL;
- *tty->flip.char_buf_ptr++ = cchar;
+ tty_insert_flip_char(tty, cchar, TTY_NORMAL);
tty_flip_buffer_push(raw->tty);
break;
case CTRLCHAR_NONE:
- memcpy(tty->flip.char_buf_ptr,
- raw->inbuf, count);
if (count < 2 ||
- (strncmp(raw->inbuf+count-2, "^n", 2) &&
- strncmp(raw->inbuf+count-2, "\252n", 2)) ) {
- /* don't add the auto \n */
- tty->flip.char_buf_ptr[count] = '\n';
- memset(tty->flip.flag_buf_ptr,
- TTY_NORMAL, count + 1);
+ (strncmp(raw->inbuf+count-2, "\252n", 2) &&
+ strncmp(raw->inbuf+count-2, "^n", 2)) ) {
+ /* add the auto \n */
+ raw->inbuf[count] = '\n';
count++;
} else
- count-=2;
- tty->flip.char_buf_ptr += count;
- tty->flip.flag_buf_ptr += count;
- tty->flip.count += count;
+ count -= 2;
+ tty_insert_flip_string(tty, raw->inbuf, count);
tty_flip_buffer_push(raw->tty);
break;
}
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index a20d7c89341..6cbf067f1a8 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -13,6 +13,7 @@
#include <linux/kmod.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
#include <linux/sched.h>
#include <linux/wait.h>
#include <linux/slab.h>
@@ -496,25 +497,19 @@ sclp_tty_input(unsigned char* buf, unsigned int count)
case CTRLCHAR_SYSRQ:
break;
case CTRLCHAR_CTRL:
- sclp_tty->flip.count++;
- *sclp_tty->flip.flag_buf_ptr++ = TTY_NORMAL;
- *sclp_tty->flip.char_buf_ptr++ = cchar;
+ tty_insert_flip_char(sclp_tty, cchar, TTY_NORMAL);
tty_flip_buffer_push(sclp_tty);
break;
case CTRLCHAR_NONE:
/* send (normal) input to line discipline */
- memcpy(sclp_tty->flip.char_buf_ptr, buf, count);
if (count < 2 ||
- (strncmp ((const char *) buf + count - 2, "^n", 2) &&
- strncmp ((const char *) buf + count - 2, "\0252n", 2))) {
- sclp_tty->flip.char_buf_ptr[count] = '\n';
- count++;
+ (strncmp((const char *) buf + count - 2, "^n", 2) &&
+ strncmp((const char *) buf + count - 2, "\252n", 2))) {
+ /* add the auto \n */
+ tty_insert_flip_string(sclp_tty, buf, count);
+ tty_insert_flip_char(sclp_tty, '\n', TTY_NORMAL);
} else
- count -= 2;
- memset(sclp_tty->flip.flag_buf_ptr, TTY_NORMAL, count);
- sclp_tty->flip.char_buf_ptr += count;
- sclp_tty->flip.flag_buf_ptr += count;
- sclp_tty->flip.count += count;
+ tty_insert_flip_string(sclp_tty, buf, count - 2);
tty_flip_buffer_push(sclp_tty);
break;
}
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 06bd85824d7..9e02625c82c 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
+#include <linux/tty_flip.h>
#include <linux/sched.h>
#include <linux/errno.h>
#include <linux/mm.h>
@@ -482,16 +483,7 @@ sclp_vt220_receiver_fn(struct evbuf_header *evbuf)
/* Send input to line discipline */
buffer++;
count--;
- /* Prevent buffer overrun by discarding input. Note that
- * because buffer_push works asynchronously, we cannot wait
- * for the buffer to be emptied. */
- if (count + sclp_vt220_tty->flip.count > TTY_FLIPBUF_SIZE)
- count = TTY_FLIPBUF_SIZE - sclp_vt220_tty->flip.count;
- memcpy(sclp_vt220_tty->flip.char_buf_ptr, buffer, count);
- memset(sclp_vt220_tty->flip.flag_buf_ptr, TTY_NORMAL, count);
- sclp_vt220_tty->flip.char_buf_ptr += count;
- sclp_vt220_tty->flip.flag_buf_ptr += count;
- sclp_vt220_tty->flip.count += count;
+ tty_insert_flip_string(sclp_vt220_tty, buffer, count);
tty_flip_buffer_push(sclp_vt220_tty);
break;
}