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Input: alps - warn about unsupported ALPS V9 touchpad 

Support for devices with ALPS_PROTO_V9 is not implemented yet but we can
detect these alps touchpads and warn users about it.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Pali Rohár 2017-03-07 09:42:46 -08:00 committed by Dmitry Torokhov
parent 09c398bc01
commit c9815232c3
2 changed files with 11 additions and 0 deletions
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10
drivers/input/mouse/alps.c
View File

@ -164,6 +164,10 @@ static const struct alps_protocol_info alps_v8_protocol_data = {
ALPS_PROTO_V8, 0x18, 0x18, 0 ALPS_PROTO_V8, 0x18, 0x18, 0
}; };
static const struct alps_protocol_info alps_v9_protocol_data = {
ALPS_PROTO_V9, 0xc8, 0xc8, 0
};
/* /*
* Some v2 models report the stick buttons in separate bits * Some v2 models report the stick buttons in separate bits
*/ */
@ -2838,6 +2842,12 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
} else if (e7[0] == 0x73 && e7[1] == 0x03 && } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
e7[2] == 0x28 && ec[1] == 0x01) { e7[2] == 0x28 && ec[1] == 0x01) {
protocol = &alps_v8_protocol_data; protocol = &alps_v8_protocol_data;
} else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0xc8) {
protocol = &alps_v9_protocol_data;
psmouse_warn(psmouse,
"Unsupported ALPS V9 touchpad: E7=%3ph, EC=%3ph\n",
e7, ec);
return -EINVAL;
} else { } else {
psmouse_dbg(psmouse, psmouse_dbg(psmouse,
"Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec); "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);

1
drivers/input/mouse/alps.h
View File

@ -23,6 +23,7 @@
#define ALPS_PROTO_V6 0x600 #define ALPS_PROTO_V6 0x600
#define ALPS_PROTO_V7 0x700 /* t3btl t4s */ #define ALPS_PROTO_V7 0x700 /* t3btl t4s */
#define ALPS_PROTO_V8 0x800 /* SS4btl SS4s */ #define ALPS_PROTO_V8 0x800 /* SS4btl SS4s */
#define ALPS_PROTO_V9 0x900 /* ss3btl */
#define MAX_TOUCHES 4 #define MAX_TOUCHES 4