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staging: dgap: tty.c: removes read_cnt, real_raw and rawreadok 

This patch removes the use of read_cnt, real_raw and rawreadok.
These variables don't exist in the new API. Reading the data
raw is no longer supported by the tty layer.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lidza Louina 2013-08-21 21:48:37 -04:00 committed by Greg Kroah-Hartman
parent c3dc9dc57d
commit fd2ada8db8
1 changed files with 15 additions and 34 deletions
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49
drivers/staging/dgap/dgap_tty.c
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@ -774,14 +774,11 @@ void dgap_input(struct channel_t *ch)
DPR_READ(("dgap_input start 2\n"));
/* Decide how much data we can send into the tty layer */
if (dgap_rawreadok && tp->real_raw)
flip_len = MYFLIPLEN;
else
flip_len = TTY_FLIPBUF_SIZE;
flip_len = TTY_FLIPBUF_SIZE;
/* Chop down the length, if needed */
len = min(data_len, flip_len);
len = min(len, (N_TTY_BUF_SIZE - 1) - tp->read_cnt);
len = min(len, (N_TTY_BUF_SIZE - 1));
ld = tty_ldisc_ref(tp);
@ -863,40 +860,24 @@ void dgap_input(struct channel_t *ch)
* On the other hand, if we are not raw, we need to go through
* the tty layer, which has its API more well defined.
*/
if (dgap_rawreadok && tp->real_raw) {
if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) {
dgap_parity_scan(ch, ch->ch_bd->flipbuf, ch->ch_bd->flipflagbuf, &len);
/* !!! WE *MUST* LET GO OF ALL LOCKS BEFORE CALLING RECEIVE BUF !!! */
DGAP_UNLOCK(ch->ch_lock, lock_flags2);
DGAP_UNLOCK(bd->bd_lock, lock_flags);
DPR_READ(("dgap_input. %d real_raw len:%d calling receive_buf for buffer for board %d\n",
__LINE__, len, ch->ch_bd->boardnum));
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,31)
tp->ldisc->ops->receive_buf(tp, ch->ch_bd->flipbuf, NULL, len);
#else
tp->ldisc.ops->receive_buf(tp, ch->ch_bd->flipbuf, NULL, len);
#endif
len = tty_buffer_request_room(tp->port, len);
tty_insert_flip_string_flags(tp->port, ch->ch_bd->flipbuf,
ch->ch_bd->flipflagbuf, len);
}
else {
if (I_PARMRK(tp) || I_BRKINT(tp) || I_INPCK(tp)) {
dgap_parity_scan(ch, ch->ch_bd->flipbuf, ch->ch_bd->flipflagbuf, &len);
len = tty_buffer_request_room(tp->port, len);
tty_insert_flip_string_flags(tp->port, ch->ch_bd->flipbuf,
ch->ch_bd->flipflagbuf, len);
}
else {
len = tty_buffer_request_room(tp->port, len);
tty_insert_flip_string(tp->port, ch->ch_bd->flipbuf, len);
}
DGAP_UNLOCK(ch->ch_lock, lock_flags2);
DGAP_UNLOCK(bd->bd_lock, lock_flags);
/* Tell the tty layer its okay to "eat" the data now */
tty_flip_buffer_push(tp->port);
len = tty_buffer_request_room(tp->port, len);
tty_insert_flip_string(tp->port, ch->ch_bd->flipbuf, len);
}
DGAP_UNLOCK(ch->ch_lock, lock_flags2);
DGAP_UNLOCK(bd->bd_lock, lock_flags);
/* Tell the tty layer its okay to "eat" the data now */
tty_flip_buffer_push(tp->port);
if (ld)
tty_ldisc_deref(ld);