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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>
hifive-unleashed-5.1
Maciej S. Szmigiero 2016-03-13 00:19:07 +01:00 committed by David S. Miller
parent 464be1e0be
commit 1e1589ad8b
2 changed files with 3 additions and 0 deletions
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1
drivers/isdn/hardware/mISDN/ipac.h
View File

@ -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

2
drivers/isdn/hardware/mISDN/mISDNipac.c
View File

@ -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