linux-kernel - [PATCH AUTOSEL 6.3 15/18] Input: xpad - add constants for GIP interface numbers

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Date:   Tue,  9 May 2023 17:19:23 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Vicki Pfau <vi@...rift.com>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Sasha Levin <sashal@...nel.org>, rojtberg@...il.com,
        nate@...om.org, mkorpershoek@...libre.com, chaorace@...il.com,
        pgriffais@...vesoftware.com, s.demassari@...il.com,
        linux-input@...r.kernel.org
Subject: [PATCH AUTOSEL 6.3 15/18] Input: xpad - add constants for GIP interface numbers

From: Vicki Pfau <vi@...rift.com>

[ Upstream commit f9b2e603c6216824e34dc9a67205d98ccc9a41ca ]

Wired GIP devices present multiple interfaces with the same USB identification
other than the interface number. This adds constants for differentiating two of
them and uses them where appropriate

Signed-off-by: Vicki Pfau <vi@...rift.com>
Link: https://lore.kernel.org/r/20230411031650.960322-2-vi@endrift.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/input/joystick/xpad.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index 29131f1a2f067..f617b2c60819c 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -559,6 +559,9 @@ struct xboxone_init_packet {
 #define GIP_MOTOR_LT BIT(3)
 #define GIP_MOTOR_ALL (GIP_MOTOR_R | GIP_MOTOR_L | GIP_MOTOR_RT | GIP_MOTOR_LT)
 
+#define GIP_WIRED_INTF_DATA 0
+#define GIP_WIRED_INTF_AUDIO 1
+
 /*
  * This packet is required for all Xbox One pads with 2015
  * or later firmware installed (or present from the factory).
@@ -2003,7 +2006,7 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
 	}
 
 	if (xpad->xtype == XTYPE_XBOXONE &&
-	    intf->cur_altsetting->desc.bInterfaceNumber != 0) {
+	    intf->cur_altsetting->desc.bInterfaceNumber != GIP_WIRED_INTF_DATA) {
 		/*
 		 * The Xbox One controller lists three interfaces all with the
 		 * same interface class, subclass and protocol. Differentiate by
-- 
2.39.2