Subject: [PATCH 2/6] isdn/gigaset: leave DLE mode before hanging up

From: Tilman Schmidt <[email-masked]>
Date: Mon, 21 Jan 2013 22:57:20 +0100 (CET)

Some firmware releases of Gigaset M105 do not accept AT+VLS=0 command
in DLE mode, so always leave DLE mode before sending the command.

Signed-off-by: Tilman Schmidt <[email-masked]>
---
 drivers/isdn/gigaset/ev-layer.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index 2e6963d..e2383ec 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -1693,6 +1693,11 @@ static void process_command_flags(struct cardstate *cs)
 	for (i = 0; i < cs->channels; ++i) {
 		bcs = cs->bcs + i;
 		if (bcs->at_state.pending_commands & PC_HUP) {
+			if (cs->dle) {
+				cs->curchannel = bcs->channel;
+				schedule_sequence(cs, &cs->at_state, SEQ_DLE0);
+				return;
+			}
 			bcs->at_state.pending_commands &= ~PC_HUP;
 			if (bcs->at_state.pending_commands & PC_CID) {
 				/* not yet dialing: PC_NOCID is sufficient */
-- 
1.7.3.4