diff options
| author | Karsten Keil <kkeil@linux-pingi.de> | 2012-05-16 03:51:08 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-16 23:24:36 +0400 |
| commit | c27b46e7f1cbf3be95a4cf5840c76a7b7d54b26f (patch) | |
| tree | db406c5ceb174b3b41a0085929fe85c5e6951bb6 /drivers/isdn/hardware/mISDN/mISDNisar.c | |
| parent | 6d1ee48fd0d8d2586aaeda24dacffc426c2be44a (diff) | |
| download | linux-c27b46e7f1cbf3be95a4cf5840c76a7b7d54b26f.tar.xz | |
mISDN: Implement MISDN_CTRL_RX_OFF for more drivers
MISDN_CTRL_RX_OFF is a meachanism to discard RX data in the driver if
the data is not needed by the application. It can be used when playing
mesages, but not recording or with unidirectional protocols.
Signed-off-by: Karsten Keil <kkeil@linux-pingi.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/hardware/mISDN/mISDNisar.c')
| -rw-r--r-- | drivers/isdn/hardware/mISDN/mISDNisar.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c index 901be3257a7b..be5973ded6d6 100644 --- a/drivers/isdn/hardware/mISDN/mISDNisar.c +++ b/drivers/isdn/hardware/mISDN/mISDNisar.c @@ -429,6 +429,11 @@ isar_rcv_frame(struct isar_ch *ch) ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); return; } + if (test_bit(FLG_RX_OFF, &ch->bch.Flags)) { + ch->bch.dropcnt += ch->is->clsb; + ch->is->write_reg(ch->is->hw, ISAR_IIA, 0); + return; + } switch (ch->bch.state) { case ISDN_P_NONE: pr_debug("%s: ISAR protocol 0 spurious IIS_RDATA %x/%x/%x\n", |