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authorMaciej S. Szmigiero <mail@maciej.szmigiero.name>2016-03-13 02:19:07 +0300
committerDavid S. Miller <davem@davemloft.net>2016-03-14 22:51:29 +0300
commit1e1589ad8b5cb5b8a6781ba5850cf710ada0e919 (patch)
treedd6722c8885d76e0cc446f8c65b52d276cabbae9 /drivers/isdn
parent464be1e0be687ffbad64014099f7d0c1a5f3723e (diff)
downloadlinux-1e1589ad8b5cb5b8a6781ba5850cf710ada0e919.tar.xz
mISDN: Support DR6 indication in mISDNipac driver
According to figure 39 in PEB3086 data sheet, version 1.4 this indication replaces DR when layer 1 transition source state is F6. This fixes mISDN layer 1 getting stuck in F6 state in TE mode on Dialogic Diva 2.02 card (and possibly others) when NT deactivates it. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Acked-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn')
-rw-r--r--drivers/isdn/hardware/mISDN/ipac.h1
-rw-r--r--drivers/isdn/hardware/mISDN/mISDNipac.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/mISDN/ipac.h b/drivers/isdn/hardware/mISDN/ipac.h
index 76aa6f8f298e..720ee72aab6a 100644
--- a/drivers/isdn/hardware/mISDN/ipac.h
+++ b/drivers/isdn/hardware/mISDN/ipac.h
@@ -217,6 +217,7 @@ struct ipac_hw {
#define ISAC_IND_SD 0x2
#define ISAC_IND_DIS 0x3
#define ISAC_IND_RSY 0x4
+#define ISAC_IND_DR6 0x5
#define ISAC_IND_EI 0x6
#define ISAC_IND_PU 0x7
#define ISAC_IND_ARD 0x8
diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c
index cb428b9ee441..aa9b6c3cadc1 100644
--- a/drivers/isdn/hardware/mISDN/mISDNipac.c
+++ b/drivers/isdn/hardware/mISDN/mISDNipac.c
@@ -80,6 +80,7 @@ isac_ph_state_bh(struct dchannel *dch)
l1_event(dch->l1, HW_DEACT_CNF);
break;
case ISAC_IND_DR:
+ case ISAC_IND_DR6:
dch->state = 3;
l1_event(dch->l1, HW_DEACT_IND);
break;
@@ -660,6 +661,7 @@ isac_l1cmd(struct dchannel *dch, u32 cmd)
spin_lock_irqsave(isac->hwlock, flags);
if ((isac->state == ISAC_IND_EI) ||
(isac->state == ISAC_IND_DR) ||
+ (isac->state == ISAC_IND_DR6) ||
(isac->state == ISAC_IND_RS))
ph_command(isac, ISAC_CMD_TIM);
else