From a04f48420ffc2c1a33e743d5075f24809161b2fd Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@nokia.com>
Date: Thu, 27 Nov 2008 18:38:03 +0200
Subject: Implement support for AT+NREC

This patch adds support for the AT+NREC command which can be used for
disabling noice reduction and echo canceling features on the AG side.
---
 audio/headset.c         | 16 ++++++++++++++++
 audio/telephony-dummy.c |  6 ++++++
 audio/telephony.h       |  2 ++
 3 files changed, 24 insertions(+)

diff --git a/audio/headset.c b/audio/headset.c
index be07e424..c21c208d 100644
--- a/audio/headset.c
+++ b/audio/headset.c
@@ -1007,6 +1007,11 @@ int telephony_call_hold_rsp(void *telephony_device, cme_error_t err)
 	return telephony_generic_rsp(telephony_device, err);
 }
 
+int telephony_disable_nr_and_ec_rsp(void *telephony_device, cme_error_t err)
+{
+	return telephony_generic_rsp(telephony_device, err);
+}
+
 int telephony_operator_selection_ind(int mode, const char *oper)
 {
 	if (!active_devices)
@@ -1037,6 +1042,16 @@ static int operator_selection(struct audio_device *device, const char *buf)
 	return 0;
 }
 
+static int disable_nr_and_ec(struct audio_device *device, const char *buf)
+{
+	if (strlen(buf) < 9)
+		return -EINVAL;
+
+	telephony_disable_nr_and_ec_req(device);
+
+	return 0;
+}
+
 static struct event event_callbacks[] = {
 	{ "ATA", answer_call },
 	{ "ATD", dial_number },
@@ -1056,6 +1071,7 @@ static struct event event_callbacks[] = {
 	{ "AT+CMEE", extended_errors },
 	{ "AT+CCWA", call_waiting_notify },
 	{ "AT+COPS", operator_selection },
+	{ "AT+NREC", disable_nr_and_ec },
 	{ 0 }
 };
 
diff --git a/audio/telephony-dummy.c b/audio/telephony-dummy.c
index b857183f..0c7ff9d9 100644
--- a/audio/telephony-dummy.c
+++ b/audio/telephony-dummy.c
@@ -196,6 +196,12 @@ void telephony_call_hold_req(void *telephony_device, const char *cmd)
 	telephony_call_hold_rsp(telephony_device, CME_ERROR_NONE);
 }
 
+void telephony_disable_nr_and_ec_req(void *telephony_device)
+{
+	debug("telephony-dummy: got disable NR and EC request");
+	telephony_disable_nr_and_ec_rsp(telephony_device, CME_ERROR_NONE);
+}
+
 /* D-Bus method handlers */
 static DBusMessage *outgoing_call(DBusConnection *conn, DBusMessage *msg,
 					void *data)
diff --git a/audio/telephony.h b/audio/telephony.h
index 5e972e74..0eb0f44e 100644
--- a/audio/telephony.h
+++ b/audio/telephony.h
@@ -146,6 +146,7 @@ void telephony_subscriber_number_req(void *telephony_device);
 void telephony_list_current_calls_req(void *telephony_device);
 void telephony_operator_selection_req(void *telephony_device);
 void telephony_call_hold_req(void *telephony_device, const char *cmd);
+void telephony_disable_nr_and_ec_req(void *telephony_device);
 
 /* AG responses to HF requests. These are implemented by headset.c */
 int telephony_event_reporting_rsp(void *telephony_device, cme_error_t err);
@@ -159,6 +160,7 @@ int telephony_subscriber_number_rsp(void *telephony_device, cme_error_t err);
 int telephony_list_current_calls_rsp(void *telephony_device, cme_error_t err);
 int telephony_operator_selection_rsp(void *telephony_device, cme_error_t err);
 int telephony_call_hold_rsp(void *telephony_device, cme_error_t err);
+int telephony_disable_nr_and_ec_rsp(void *telephony_device, cme_error_t err);
 
 /* Event indications by AG. These are implemented by headset.c */
 int telephony_event_ind(int index);
-- 
cgit