mISDN: Added layer-1-hold feature
Add IMHOLD_L1 ioctl.
The feature will be disabled on closing.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/isdn/mISDN/tei.c b/drivers/isdn/mISDN/tei.c
index b452dea..c75af76 100644
--- a/drivers/isdn/mISDN/tei.c
+++ b/drivers/isdn/mISDN/tei.c
@@ -122,8 +122,11 @@
}
read_unlock_irqrestore(&mgr->lock, flags);
/* All TEI are inactiv */
- mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER, NULL, 1);
- mISDN_FsmChangeState(fi, ST_L1_DEACT_PENDING);
+ if (!test_bit(OPTION_L1_HOLD, &mgr->options)) {
+ mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER,
+ NULL, 1);
+ mISDN_FsmChangeState(fi, ST_L1_DEACT_PENDING);
+ }
}
static void
@@ -132,9 +135,11 @@
struct manager *mgr = fi->userdata;
/* restart da timer */
- mISDN_FsmDelTimer(&mgr->datimer, 2);
- mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER, NULL, 2);
-
+ if (!test_bit(OPTION_L1_HOLD, &mgr->options)) {
+ mISDN_FsmDelTimer(&mgr->datimer, 2);
+ mISDN_FsmAddTimer(&mgr->datimer, DATIMER_VAL, EV_DATIMER,
+ NULL, 2);
+ }
}
static void
@@ -1103,6 +1108,7 @@
{
struct layer2 *l2, *nl2;
+ test_and_clear_bit(OPTION_L1_HOLD, &mgr->options);
if (test_bit(MGR_OPT_NETWORK, &mgr->options)) {
/* not locked lock is taken in release tei */
mgr->up = NULL;
@@ -1133,13 +1139,26 @@
ctrl_teimanager(struct manager *mgr, void *arg)
{
/* currently we only have one option */
- int clean = *((int *)arg);
+ int *val = (int *)arg;
+ int ret = 0;
- if (clean)
- test_and_set_bit(OPTION_L2_CLEANUP, &mgr->options);
- else
- test_and_clear_bit(OPTION_L2_CLEANUP, &mgr->options);
- return 0;
+ switch (val[0]) {
+ case IMCLEAR_L2:
+ if (val[1])
+ test_and_set_bit(OPTION_L2_CLEANUP, &mgr->options);
+ else
+ test_and_clear_bit(OPTION_L2_CLEANUP, &mgr->options);
+ break;
+ case IMHOLD_L1:
+ if (val[1])
+ test_and_set_bit(OPTION_L1_HOLD, &mgr->options);
+ else
+ test_and_clear_bit(OPTION_L1_HOLD, &mgr->options);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+ return ret;
}
/* This function does create a L2 for fixed TEI in NT Mode */