From 0727da1d5b004da0361f0a807ecbef2339cb35e2 Mon Sep 17 00:00:00 2001
From: Denis Kenzior <denkenz@gmail.com>
Date: Fri, 17 Jan 2014 14:37:41 -0600
Subject: emulator: Improve SLC establishment logic

---
 src/emulator.c  | 31 ++++++++++++++++++++++++++++++-
 src/ofono.h     |  9 +++++++++
 src/voicecall.c |  4 ++++
 3 files changed, 43 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/emulator.c b/src/emulator.c
index 70505b5c..6171525e 100644
--- a/src/emulator.c
+++ b/src/emulator.c
@@ -636,7 +636,8 @@ done:
 
 		g_at_server_send_final(server, G_AT_SERVER_RESULT_OK);
 
-		em->slc = TRUE;
+		__ofono_emulator_slc_condition(em,
+					OFONO_EMULATOR_SLC_CONDITION_CMER);
 		break;
 	}
 
@@ -1266,3 +1267,31 @@ void __ofono_emulator_set_indicator_forced(struct ofono_emulator *em,
 			ind->deferred = TRUE;
 	}
 }
+
+void __ofono_emulator_slc_condition(struct ofono_emulator *em,
+					enum ofono_emulator_slc_condition cond)
+{
+	if (em->slc == TRUE)
+		return;
+
+	switch (cond) {
+	case OFONO_EMULATOR_SLC_CONDITION_CMER:
+		if ((em->r_features & HFP_HF_FEATURE_3WAY) &&
+				(em->l_features & HFP_AG_FEATURE_3WAY))
+			return;
+		/* Fall Through */
+
+	case OFONO_EMULATOR_SLC_CONDITION_CHLD:
+		if ((em->r_features & HFP_HF_FEATURE_HF_INDICATORS) &&
+				(em->l_features & HFP_HF_FEATURE_HF_INDICATORS))
+			return;
+		/* Fall Through */
+
+	case OFONO_EMULATOR_SLC_CONDITION_BIND:
+		ofono_info("SLC reached");
+		em->slc = TRUE;
+
+	default:
+		break;
+	}
+}
diff --git a/src/ofono.h b/src/ofono.h
index c3423299..bfcb58f5 100644
--- a/src/ofono.h
+++ b/src/ofono.h
@@ -505,8 +505,17 @@ void __ofono_gprs_provision_free_settings(
 				int count);
 
 #include <ofono/emulator.h>
+
+enum ofono_emulator_slc_condition {
+	OFONO_EMULATOR_SLC_CONDITION_CMER,
+	OFONO_EMULATOR_SLC_CONDITION_CHLD,
+	OFONO_EMULATOR_SLC_CONDITION_BIND,
+};
+
 void __ofono_emulator_set_indicator_forced(struct ofono_emulator *em,
 						const char *name, int value);
+void __ofono_emulator_slc_condition(struct ofono_emulator *em,
+					enum ofono_emulator_slc_condition cond);
 
 #include <ofono/gnss.h>
 #include <ofono/cdma-sms.h>
diff --git a/src/voicecall.c b/src/voicecall.c
index d11a4cd6..550b79b4 100644
--- a/src/voicecall.c
+++ b/src/voicecall.c
@@ -3304,6 +3304,10 @@ static void emulator_chld_cb(struct ofono_emulator *em,
 
 		ofono_emulator_send_info(em, buf, TRUE);
 		result.type = OFONO_ERROR_TYPE_NO_ERROR;
+
+		__ofono_emulator_slc_condition(em,
+					OFONO_EMULATOR_SLC_CONDITION_CHLD);
+
 		break;
 
 	case OFONO_EMULATOR_REQUEST_TYPE_QUERY:
-- 
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