From: Xiaoxiao Liu <xiaoxiao.liu-1@cn.alps.com>
To: XiaoXiao Liu <sliuuxiaonxiao@gmail.com>,
"dmitry.torokhov@gmail.com" <dmitry.torokhov@gmail.com>
Cc: "pali.rohar@gmail.com" <pali.rohar@gmail.com>,
"linux-input@vger.kernel.org" <linux-input@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hui.wang@canonical.com" <hui.wang@canonical.com>,
Xiaojian Cao <xiaojian.cao@cn.alps.com>,
"zhangfp1@lenovo.com" <zhangfp1@lenovo.com>
Subject: 答复: [PATCH] input: alps-fix the issue the special alps trackpoint do not work.
Date: Tue, 21 May 2019 01:07:01 +0000 [thread overview]
Message-ID: <OSBPR01MB485510A2A32CD9D2CE5EF7A1DA070@OSBPR01MB4855.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20190520110149.27107-1-sliuuxiaonxiao@gmail.com>
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Add Pali Roh¨¢r.
-----ÓʼþÔ¼þ-----
·¢¼þÈË: XiaoXiao Liu <sliuuxiaonxiao@gmail.com>
·¢ËÍʱ¼ä: Monday, May 20, 2019 7:02 PM
ÊÕ¼þÈË: dmitry.torokhov@gmail.com
³ËÍ: linux-input@vger.kernel.org; linux-kernel@vger.kernel.org; hui.wang@canonical.com; ²Ü Ô½¨ Xiaojian Cao <xiaojian.cao@cn.alps.com>; zhangfp1@lenovo.com; ¢ ÔÔ Xiaoxiao Liu <xiaoxiao.liu-1@cn.alps.com>; XiaoXiao Liu <sliuuxiaonxiao@gmail.com>
Ö÷Ìâ: [PATCH] input: alps-fix the issue the special alps trackpoint do not work.
when the alps trackpoint is detected and using the alps_v8_protocol_data procotol, the alps driver will not report the input data.
solution: use standard mouse driver instead of alps driver when the specail trackpoint was detected.
Signed-off-by: XiaoXiao Liu <sliuuxiaonxiao@gmail.com>
---
drivers/input/mouse/alps.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index 0a6f7ca883e7..516ae1d0eb17 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -24,7 +24,7 @@
#include "psmouse.h"
#include "alps.h"
-
+#include "trackpoint.h"
/*
* Definitions for ALPS version 3 and 4 command mode protocol
*/
@@ -2864,6 +2864,22 @@ static const struct alps_protocol_info *alps_match_table(unsigned char *e7,
return NULL;
}
+int alps_check_is_trackpoint(struct psmouse *psmouse) {
+ u8 param[2] = { 0 };
+ int error;
+
+ error = ps2_command(&psmouse->ps2dev,
+ param, MAKE_PS2_CMD(0, 2, TP_READ_ID));
+ if (error)
+ return error;
+
+ if (param[0] == TP_VARIANT_ALPS)
+ return 0;
+ psmouse_warn(psmouse, "It is not alps trackpoint.\n");
+ return -ENODEV;
+}
+
static int alps_identify(struct psmouse *psmouse, struct alps_data *priv) {
const struct alps_protocol_info *protocol; @@ -2912,6 +2928,11 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
protocol = &alps_v3_protocol_data;
} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
(e7[2] == 0x14 || e7[2] == 0x28)) {
+ if (alps_check_is_trackpoint(psmouse) == 0) {
+ psmouse_warn(psmouse,
+ "It is alps trackpoint, use the standard mouse driver.\n");
+ return -EINVAL;
+ }
protocol = &alps_v8_protocol_data;
} else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0xc8) {
protocol = &alps_v9_protocol_data;
--
2.20.1
next prev parent reply other threads:[~2019-05-21 1:07 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-20 11:01 [PATCH] input: alps-fix the issue the special alps trackpoint do not work XiaoXiao Liu
2019-05-21 1:07 ` Xiaoxiao Liu [this message]
2019-05-21 2:26 ` 答复: " Hui Wang
2019-05-21 9:46 ` Pali Rohár
2019-05-22 2:53 ` 答复: " Xiaoxiao Liu
2019-05-22 6:35 ` Pali Rohár
2019-05-22 7:30 ` 答复: " Xiaoxiao Liu
2019-05-22 7:40 ` Pali Rohár
2019-05-23 6:01 ` Peter Hutterer
2019-05-24 5:25 ` Hui Wang
2019-05-24 5:36 ` Peter Hutterer
2019-05-24 5:50 ` Hui Wang
2019-05-24 7:26 ` Pali Rohár
2019-05-24 7:37 ` Hui Wang
2019-05-24 9:37 ` Peter Hutterer
[not found] ` <f0c2dff9-519e-d54d-4cd0-2be666656dc2@canonical.com>
2019-05-24 10:58 ` Peter Hutterer
2019-05-25 1:33 ` Hui Wang
2019-05-24 9:32 ` Peter Hutterer
2019-05-24 9:52 ` Pali Rohár
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