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Date:   Mon, 18 Apr 2022 17:49:28 +0000
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Message-Id: <20220418174914.Bluez.v2.1.I6ab300fa4999c9310f4cb6fc09b1290edb6b2c2b@changeid>
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Subject: [Bluez PATCH v2 1/2] device: Add "Bonded" flag to dbus property
From:   Zhengping Jiang <jiangzp@google.com>
To:     linux-bluetooth@vger.kernel.org, luiz.dentz@gmail.com
Cc:     chromeos-bluetooth-upstreaming@chromium.org,
        Zhengping Jiang <jiangzp@google.com>,
        Sonny Sasaka <sonnysasaka@chromium.org>,
        Yun-Hao Chung <howardchung@chromium.org>
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Precedence: bulk

Add "Bonded" to dbus device property table. When setting the "Bonded
flag, check the status of the Bonded property first. If the Bonded
property is changed, send property changed signal.

Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
Reviewed-by: Yun-Hao Chung <howardchung@chromium.org>

Signed-off-by: Zhengping Jiang <jiangzp@google.com>
---

Changes in v2:
- Move one variable declaration to the top following C90 standard

Changes in v1:
- Add "Bonded" to D-Bus interface
- Send property changed signal if the bonded flag is changed

 doc/device-api.txt |  4 ++++
 src/device.c       | 40 +++++++++++++++++++++++++++++++++++-----
 2 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/doc/device-api.txt b/doc/device-api.txt
index 4e824d2dec17..6162755f954c 100644
--- a/doc/device-api.txt
+++ b/doc/device-api.txt
@@ -171,6 +171,10 @@ Properties	string Address [readonly]
 
 			Indicates if the remote device is paired.
 
+		boolean Bonded [readonly]
+
+			Indicates if the remote device is bonded.
+
 		boolean Connected [readonly]
 
 			Indicates if the remote device is currently connected.
diff --git a/src/device.c b/src/device.c
index 8dc12d026827..868c41f025d9 100644
--- a/src/device.c
+++ b/src/device.c
@@ -1042,6 +1042,22 @@ static gboolean dev_property_get_paired(const GDBusPropertyTable *property,
 	return TRUE;
 }
 
+static gboolean dev_property_get_bonded(const GDBusPropertyTable *property,
+					DBusMessageIter *iter, void *data)
+{
+	struct btd_device *dev = data;
+	dbus_bool_t val;
+
+	if (dev->bredr_state.bonded || dev->le_state.bonded)
+		val = TRUE;
+	else
+		val = FALSE;
+
+	dbus_message_iter_append_basic(iter, DBUS_TYPE_BOOLEAN, &val);
+
+	return TRUE;
+}
+
 static gboolean dev_property_get_legacy(const GDBusPropertyTable *property,
 					DBusMessageIter *iter, void *data)
 {
@@ -3120,6 +3136,7 @@ static const GDBusPropertyTable device_properties[] = {
 	{ "Icon", "s", dev_property_get_icon, NULL,
 					dev_property_exists_icon },
 	{ "Paired", "b", dev_property_get_paired },
+	{ "Bonded", "b", dev_property_get_bonded },
 	{ "Trusted", "b", dev_property_get_trusted, dev_property_set_trusted },
 	{ "Blocked", "b", dev_property_get_blocked, dev_property_set_blocked },
 	{ "LegacyPairing", "b", dev_property_get_legacy },
@@ -6114,17 +6131,30 @@ void btd_device_set_trusted(struct btd_device *device, gboolean trusted)
 
 void device_set_bonded(struct btd_device *device, uint8_t bdaddr_type)
 {
+	struct bearer_state *state;
+
 	if (!device)
 		return;
 
-	DBG("");
+	state = get_state(device, bdaddr_type);
 
-	if (bdaddr_type == BDADDR_BREDR)
-		device->bredr_state.bonded = true;
-	else
-		device->le_state.bonded = true;
+	if (state->bonded)
+		return;
+
+	DBG("setting bonded for device to true");
+
+	state->bonded = true;
 
 	btd_device_set_temporary(device, false);
+
+	/* If the other bearer state was already true we don't need to
+	 * send any property signals.
+	 */
+	if (device->bredr_state.bonded == device->le_state.bonded)
+		return;
+
+	g_dbus_emit_property_changed(dbus_conn, device->path,
+						DEVICE_INTERFACE, "Bonded");
 }
 
 void device_set_legacy(struct btd_device *device, bool legacy)
-- 
2.36.0.rc0.470.gd361397f0d-goog