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From:   Szymon Janc <szymon.janc@codecoup.pl>
To:     linux-bluetooth@vger.kernel.org
Cc:     Szymon Janc <szymon.janc@codecoup.pl>
Subject: [PATCH] sixaxis: Fix Bluetooth PS3 clone joypad being named like the original
Date:   Thu, 18 Feb 2021 20:05:45 +0100
Message-Id: <20210218190545.109454-1-szymon.janc@codecoup.pl>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

When cable pairing a PS3 clone device, we should try and keep the USB device
name to create a new btd_device so that the joypad is named after its USB name
when connecting through Bluetooth.

If that isn't done, "Shanwan" clone joypads are named like the genuine joypads, and
kernel Bluetooth quirks aren't applied.

gh-issue: https://github.com/bluez/bluez/issues/46
---
 plugins/sixaxis.c        |  5 ++++-
 profiles/input/server.c  |  2 +-
 profiles/input/sixaxis.h | 13 ++++++++++++-
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/plugins/sixaxis.c b/plugins/sixaxis.c
index d693a86c0..517cecc47 100644
--- a/plugins/sixaxis.c
+++ b/plugins/sixaxis.c
@@ -387,6 +387,7 @@ get_pairing_type_for_device(struct udev_device *udevice, uint16_t *bus,
 						char **sysfs_path)
 {
 	struct udev_device *hid_parent;
+	const char *hid_name;
 	const char *hid_id;
 	const struct cable_pairing *cp;
 	uint16_t vid, pid;
@@ -401,7 +402,9 @@ get_pairing_type_for_device(struct udev_device *udevice, uint16_t *bus,
 	if (!hid_id || sscanf(hid_id, "%hx:%hx:%hx", bus, &vid, &pid) != 3)
 		return NULL;
 
-	cp = get_pairing(vid, pid);
+	hid_name = udev_device_get_property_value(hid_parent, "HID_NAME");
+
+	cp = get_pairing(vid, pid, hid_name);
 	*sysfs_path = g_strdup(udev_device_get_syspath(udevice));
 
 	return cp;
diff --git a/profiles/input/server.c b/profiles/input/server.c
index d8b413744..79cf08a66 100644
--- a/profiles/input/server.c
+++ b/profiles/input/server.c
@@ -120,7 +120,7 @@ static bool dev_is_sixaxis(const bdaddr_t *src, const bdaddr_t *dst)
 	vid = btd_device_get_vendor(device);
 	pid = btd_device_get_product(device);
 
-	cp = get_pairing(vid, pid);
+	cp = get_pairing(vid, pid, NULL);
 	if (cp && (cp->type == CABLE_PAIRING_SIXAXIS ||
 					cp->type == CABLE_PAIRING_DS4))
 		return true;
diff --git a/profiles/input/sixaxis.h b/profiles/input/sixaxis.h
index a3cda70e4..ab8831995 100644
--- a/profiles/input/sixaxis.h
+++ b/profiles/input/sixaxis.h
@@ -29,7 +29,7 @@ struct cable_pairing {
 };
 
 static inline const struct cable_pairing *
-get_pairing(uint16_t vid, uint16_t pid)
+get_pairing(uint16_t vid, uint16_t pid, const char *name)
 {
 	static const struct cable_pairing devices[] = {
 		{
@@ -40,6 +40,14 @@ get_pairing(uint16_t vid, uint16_t pid)
 			.version = 0x0000,
 			.type = CABLE_PAIRING_SIXAXIS,
 		},
+		{
+			.name = "SHANWAN PS3 GamePad",
+			.source = 0x0002,
+			.vid = 0x054c,
+			.pid = 0x0268,
+			.version = 0x0000,
+			.type = CABLE_PAIRING_SIXAXIS,
+		},
 		{
 			.name = "Navigation Controller",
 			.source = 0x0002,
@@ -73,6 +81,9 @@ get_pairing(uint16_t vid, uint16_t pid)
 		if (devices[i].pid != pid)
 			continue;
 
+		if (name && strcmp(name, devices[i].name))
+			continue;
+
 		return &devices[i];
 	}
 
-- 
2.29.2