[PATCH v4 4/8] adapter: Add support for setting ISO Socket experimental feature

[Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>]

From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>

This adds support for setting ISO Socket experimental UUID which
enables the use of BTPROTO_ISO on the system.
---
 src/adapter.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 src/adapter.h |  1 +
 src/main.c    |  1 +
 src/main.conf |  1 +
 4 files changed, 45 insertions(+)

diff --git a/src/adapter.c b/src/adapter.c
index f7faaa263..6cfc7facc 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -141,6 +141,13 @@ static const struct mgmt_exp_uuid codec_offload_uuid = {
 	.str = "a6695ace-ee7f-4fb9-881a-5fac66c629af"
 };
 
+/* 6fbaf188-05e0-496a-9885-d6ddfdb4e03e */
+static const struct mgmt_exp_uuid iso_socket_uuid = {
+	.val = { 0x3e, 0xe0, 0xb4, 0xfd, 0xdd, 0xd6, 0x85, 0x98,
+		0x6a, 0x49, 0xe0, 0x05, 0x88, 0xf1, 0xba, 0x6f },
+	.str = "6fbaf188-05e0-496a-9885-d6ddfdb4e03e"
+};
+
 static DBusConnection *dbus_conn = NULL;
 
 static uint32_t kernel_features = 0;
@@ -9695,6 +9702,40 @@ static void codec_offload_func(struct btd_adapter *adapter, uint8_t action)
 	btd_error(adapter->dev_id, "Failed to set Codec Offload");
 }
 
+static void iso_socket_complete(uint8_t status, uint16_t len,
+				const void *param, void *user_data)
+{
+	struct btd_adapter *adapter = user_data;
+	uint8_t action = btd_opts.experimental ? 0x01 : 0x00;
+
+	if (status != 0) {
+		error("Set ISO Socket failed with status 0x%02x (%s)",
+						status, mgmt_errstr(status));
+		return;
+	}
+
+	DBG("ISO Socket successfully set");
+
+	if (action)
+		queue_push_tail(adapter->exps, (void *)iso_socket_uuid.val);
+}
+
+static void iso_socket_func(struct btd_adapter *adapter, uint8_t action)
+{
+	struct mgmt_cp_set_exp_feature cp;
+
+	memset(&cp, 0, sizeof(cp));
+	memcpy(cp.uuid, iso_socket_uuid.val, 16);
+	cp.action = action;
+
+	if (mgmt_send(adapter->mgmt, MGMT_OP_SET_EXP_FEATURE,
+			MGMT_INDEX_NONE, sizeof(cp), &cp,
+			iso_socket_complete, adapter, NULL) > 0)
+		return;
+
+	btd_error(adapter->dev_id, "Failed to set ISO Socket");
+}
+
 static const struct exp_feat {
 	uint32_t flag;
 	const struct mgmt_exp_uuid *uuid;
@@ -9708,6 +9749,7 @@ static const struct exp_feat {
 		rpa_resolution_func),
 	EXP_FEAT(EXP_FEAT_CODEC_OFFLOAD, &codec_offload_uuid,
 		codec_offload_func),
+	EXP_FEAT(EXP_FEAT_ISO_SOCKET, &iso_socket_uuid, iso_socket_func),
 };
 
 static void read_exp_features_complete(uint8_t status, uint16_t length,
diff --git a/src/adapter.h b/src/adapter.h
index 688ed51c6..b09044edd 100644
--- a/src/adapter.h
+++ b/src/adapter.h
@@ -260,6 +260,7 @@ enum experimental_features {
 	EXP_FEAT_BQR			= 1 << 2,
 	EXP_FEAT_RPA_RESOLUTION		= 1 << 3,
 	EXP_FEAT_CODEC_OFFLOAD		= 1 << 4,
+	EXP_FEAT_ISO_SOCKET		= 1 << 5,
 };
 
 bool btd_adapter_has_exp_feature(struct btd_adapter *adapter, uint32_t feature);
diff --git a/src/main.c b/src/main.c
index 12cc21372..011d66d5a 100644
--- a/src/main.c
+++ b/src/main.c
@@ -606,6 +606,7 @@ static const char *valid_uuids[] = {
 	"15c0a148-c273-11ea-b3de-0242ac130004",
 	"330859bc-7506-492d-9370-9a6f0614037f",
 	"a6695ace-ee7f-4fb9-881a-5fac66c629af",
+	"6fbaf188-05e0-496a-9885-d6ddfdb4e03e",
 	"*"
 };
 
diff --git a/src/main.conf b/src/main.conf
index 91b98b8c4..9d0319318 100644
--- a/src/main.conf
+++ b/src/main.conf
@@ -120,6 +120,7 @@
 # 15c0a148-c273-11ea-b3de-0242ac130004 (BlueZ Experimental LL privacy)
 # 330859bc-7506-492d-9370-9a6f0614037f (BlueZ Experimental Bluetooth Quality Report)
 # a6695ace-ee7f-4fb9-881a-5fac66c629af (BlueZ Experimental Offload Codecs)
+# 6fbaf188-05e0-496a-9885-d6ddfdb4e03e (BlueZ Experimental ISO socket)
 # Defaults to false.
 #Experimental = false
 
-- 
2.35.1