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Add patches to support ETPS/2 Elantech touchpads (rhbz 1030802)

This commit is contained in:
Josh Boyer 2013-12-11 08:47:06 -05:00
parent e4fc841717
commit de4d480ba4
3 changed files with 156 additions and 0 deletions
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36
Input-elantech-add-support-for-newer-August-2013-dev.patch Normal file
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@ -0,0 +1,36 @@
Bugzilla: 1030802
Upstream-status: 3.13
From 9cb80b965eaf7af1369f6e16f48a05fbaaccc021 Mon Sep 17 00:00:00 2001
From: Matt Walker <matt.g.d.walker@gmail.com>
Date: Thu, 5 Dec 2013 12:39:02 -0800
Subject: [PATCH] Input: elantech - add support for newer (August 2013) devices
Added detection for newer Elantech touchpads, so that kernel doesn't
fall-back to default PS/2 driver. Supports touchpads released after
~August 2013. Fixes bug:
https://lists.launchpad.net/kernel-packages/msg18481.html
Tested on an Acer Aspire S7-392-6302.
Signed-off by: Matt Walker <matt.g.d.walker@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
drivers/input/mouse/elantech.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 8551dca..597e9b8 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1313,6 +1313,7 @@ static int elantech_set_properties(struct elantech_data *etd)
break;
case 6:
case 7:
+ case 8:
etd->hw_version = 4;
break;
default:
--
1.8.3.1

110
elantech-Properly-differentiate-between-clickpads-an.patch Normal file
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@ -0,0 +1,110 @@
Bugzilla: 1030802
Upstream-status: http://www.mail-archive.com/linux-input@vger.kernel.org/msg07220.html
From e1c7fa5fbb6688bd464658ff8a93bdf23c442065 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Mon, 9 Dec 2013 15:18:04 +0100
Subject: [PATCH v2] elantech: Properly differentiate between clickpads and
normal touchpads
The current assumption in the elantech driver that hw version 3 touchpads are
never clickpads and hw version 4 touchpads are always clickpads is wrong.
There are several bug reports for this, ie:
https://bugzilla.redhat.com/show_bug.cgi?id=1030802
http://superuser.com/questions/619582/right-elantech-touchpad-button-not-working-in-linux
I've spend a couple of hours wading through various bugzillas,
launchpads and forum posts to create a list of fw-versions and capabilities
for different laptop models to find a good method to differentiate between
clickpads and versions with separate hardware buttons.
Which shows that a device being a clickpad is reliable indicated by bit 12
being set in the fw_version. I've included the gathered list inside the driver,
so that we've this info at hand if we need to revisit this later.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/input/mouse/elantech.c | 45 +++++++++++++++++++++++++++++++++++++++---
1 file changed, 42 insertions(+), 3 deletions(-)
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 597e9b8..ef1cf52 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -486,6 +486,7 @@ static void elantech_input_sync_v4(struct psmouse *psmouse)
unsigned char *packet = psmouse->packet;
input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
input_mt_report_pointer_emulation(dev, true);
input_sync(dev);
}
@@ -984,6 +985,44 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
}
/*
+ * Advertise INPUT_PROP_BUTTONPAD for clickpads. The testing of bit 12 in
+ * fw_version for this is based on the following fw_version & caps table:
+ *
+ * Laptop-model: fw_version: caps: buttons:
+ * Acer S3 0x461f00 10, 13, 0e clickpad
+ * Acer S7-392 0x581f01 50, 17, 0d clickpad
+ * Acer V5-131 0x461f02 01, 16, 0c clickpad
+ * Acer V5-551 0x461f00 ? clickpad
+ * Asus K53SV 0x450f01 78, 15, 0c 2 hw buttons
+ * Asus G46VW 0x460f02 00, 18, 0c 2 hw buttons
+ * Asus G750JX 0x360f00 00, 16, 0c 2 hw buttons
+ * Asus UX31 0x361f00 20, 15, 0e clickpad
+ * Asus UX32VD 0x361f02 00, 15, 0e clickpad
+ * Avatar AVIU-145A2 0x361f00 ? clickpad
+ * Gigabyte U2442 0x450f01 58, 17, 0c 2 hw buttons
+ * Lenovo L430 0x350f02 b9, 15, 0c 2 hw buttons (*)
+ * Samsung NF210 0x150b00 78, 14, 0a 2 hw buttons
+ * Samsung NP770Z5E 0x575f01 10, 15, 0f clickpad
+ * Samsung NP700Z5B 0x361f06 21, 15, 0f clickpad
+ * Samsung NP900X3E-A02 0x575f03 ? clickpad
+ * Samsung NP-QX410 0x851b00 19, 14, 0c clickpad
+ * Samsung RC512 0x450f00 08, 15, 0c 2 hw buttons
+ * Samsung RF710 0x450f00 ? 2 hw buttons
+ * System76 Pangolin 0x250f01 ? 2 hw buttons
+ * (*) + 3 trackpoint buttons
+ */
+static void elantech_set_buttonpad_prop(struct psmouse *psmouse)
+{
+ struct input_dev *dev = psmouse->dev;
+ struct elantech_data *etd = psmouse->private;
+
+ if (etd->fw_version & 0x001000) {
+ __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
+ __clear_bit(BTN_RIGHT, dev->keybit);
+ }
+}
+
+/*
* Set the appropriate event bits for the input subsystem
*/
static int elantech_set_input_params(struct psmouse *psmouse)
@@ -1026,6 +1065,8 @@ static int elantech_set_input_params(struct psmouse *psmouse)
__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
/* fall through */
case 3:
+ if (etd->hw_version == 3)
+ elantech_set_buttonpad_prop(psmouse);
input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
if (etd->reports_pressure) {
@@ -1047,9 +1088,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
*/
psmouse_warn(psmouse, "couldn't query resolution data.\n");
}
- /* v4 is clickpad, with only one button. */
- __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
- __clear_bit(BTN_RIGHT, dev->keybit);
+ elantech_set_buttonpad_prop(psmouse);
__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
/* For X to recognize me as touchpad. */
input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
--
1.8.4.2

10
kernel.spec
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@ -819,6 +819,9 @@ Patch25164: dell-laptop.patch
#CVE-2013-XXXX rhbz 1039845 1039874
Patch25165: net-rework-recvmsg-handler-msg_name-and-msg_namelen-.patch
#rhbz 1030802
Patch25170: Input-elantech-add-support-for-newer-August-2013-dev.patch
Patch25171: elantech-Properly-differentiate-between-clickpads-an.patch
# END OF PATCH DEFINITIONS
@ -1587,6 +1590,10 @@ ApplyPatch dell-laptop.patch
#CVE-2013-XXXX rhbz 1039845 1039874
ApplyPatch net-rework-recvmsg-handler-msg_name-and-msg_namelen-.patch
#rhbz 1030802
ApplyPatch Input-elantech-add-support-for-newer-August-2013-dev.patch
ApplyPatch elantech-Properly-differentiate-between-clickpads-an.patch
# END OF PATCH APPLICATIONS
%endif
@ -2399,6 +2406,9 @@ fi
# and build.
%changelog
* Wed Dec 11 2013 Josh Boyer <jwboyer@fedoraproject.org>
- Add patches to support ETPS/2 Elantech touchpads (rhbz 1030802)
* Tue Dec 10 2013 Josh Boyer <jwboyer@fedoraproject.org>
- CVE-2013-XXXX net: memory leak in recvmsg (rhbz 1039845 1039874)