Add patches to support ETPS/2 Elantech touchpads (rhbz 1030802)
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Josh Boyer
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elantech-Properly-differentiate-between-clickpads-an.patch
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elantech-Properly-differentiate-between-clickpads-an.patch
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Bugzilla: 1030802
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Upstream-status: http://www.mail-archive.com/linux-input@vger.kernel.org/msg07220.html
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From e1c7fa5fbb6688bd464658ff8a93bdf23c442065 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Mon, 9 Dec 2013 15:18:04 +0100
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Subject: [PATCH v2] elantech: Properly differentiate between clickpads and
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normal touchpads
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The current assumption in the elantech driver that hw version 3 touchpads are
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never clickpads and hw version 4 touchpads are always clickpads is wrong.
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There are several bug reports for this, ie:
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https://bugzilla.redhat.com/show_bug.cgi?id=1030802
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http://superuser.com/questions/619582/right-elantech-touchpad-button-not-working-in-linux
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I've spend a couple of hours wading through various bugzillas,
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launchpads and forum posts to create a list of fw-versions and capabilities
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for different laptop models to find a good method to differentiate between
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clickpads and versions with separate hardware buttons.
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Which shows that a device being a clickpad is reliable indicated by bit 12
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being set in the fw_version. I've included the gathered list inside the driver,
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so that we've this info at hand if we need to revisit this later.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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drivers/input/mouse/elantech.c | 45 +++++++++++++++++++++++++++++++++++++++---
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1 file changed, 42 insertions(+), 3 deletions(-)
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diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
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index 597e9b8..ef1cf52 100644
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--- a/drivers/input/mouse/elantech.c
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+++ b/drivers/input/mouse/elantech.c
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@@ -486,6 +486,7 @@ static void elantech_input_sync_v4(struct psmouse *psmouse)
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unsigned char *packet = psmouse->packet;
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input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
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+ input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
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input_mt_report_pointer_emulation(dev, true);
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input_sync(dev);
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}
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@@ -984,6 +985,44 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
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}
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/*
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+ * Advertise INPUT_PROP_BUTTONPAD for clickpads. The testing of bit 12 in
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+ * fw_version for this is based on the following fw_version & caps table:
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+ *
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+ * Laptop-model: fw_version: caps: buttons:
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+ * Acer S3 0x461f00 10, 13, 0e clickpad
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+ * Acer S7-392 0x581f01 50, 17, 0d clickpad
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+ * Acer V5-131 0x461f02 01, 16, 0c clickpad
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+ * Acer V5-551 0x461f00 ? clickpad
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+ * Asus K53SV 0x450f01 78, 15, 0c 2 hw buttons
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+ * Asus G46VW 0x460f02 00, 18, 0c 2 hw buttons
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+ * Asus G750JX 0x360f00 00, 16, 0c 2 hw buttons
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+ * Asus UX31 0x361f00 20, 15, 0e clickpad
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+ * Asus UX32VD 0x361f02 00, 15, 0e clickpad
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+ * Avatar AVIU-145A2 0x361f00 ? clickpad
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+ * Gigabyte U2442 0x450f01 58, 17, 0c 2 hw buttons
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+ * Lenovo L430 0x350f02 b9, 15, 0c 2 hw buttons (*)
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+ * Samsung NF210 0x150b00 78, 14, 0a 2 hw buttons
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+ * Samsung NP770Z5E 0x575f01 10, 15, 0f clickpad
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+ * Samsung NP700Z5B 0x361f06 21, 15, 0f clickpad
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+ * Samsung NP900X3E-A02 0x575f03 ? clickpad
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+ * Samsung NP-QX410 0x851b00 19, 14, 0c clickpad
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+ * Samsung RC512 0x450f00 08, 15, 0c 2 hw buttons
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+ * Samsung RF710 0x450f00 ? 2 hw buttons
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+ * System76 Pangolin 0x250f01 ? 2 hw buttons
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+ * (*) + 3 trackpoint buttons
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+ */
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+static void elantech_set_buttonpad_prop(struct psmouse *psmouse)
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+{
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+ struct input_dev *dev = psmouse->dev;
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+ struct elantech_data *etd = psmouse->private;
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+
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+ if (etd->fw_version & 0x001000) {
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+ __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
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+ __clear_bit(BTN_RIGHT, dev->keybit);
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+ }
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+}
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+
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+/*
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* Set the appropriate event bits for the input subsystem
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*/
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static int elantech_set_input_params(struct psmouse *psmouse)
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@@ -1026,6 +1065,8 @@ static int elantech_set_input_params(struct psmouse *psmouse)
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__set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
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/* fall through */
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case 3:
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+ if (etd->hw_version == 3)
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+ elantech_set_buttonpad_prop(psmouse);
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input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
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input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
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if (etd->reports_pressure) {
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@@ -1047,9 +1088,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
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*/
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psmouse_warn(psmouse, "couldn't query resolution data.\n");
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}
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- /* v4 is clickpad, with only one button. */
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- __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
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- __clear_bit(BTN_RIGHT, dev->keybit);
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+ elantech_set_buttonpad_prop(psmouse);
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__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
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/* For X to recognize me as touchpad. */
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input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
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--
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1.8.4.2
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@ -711,6 +711,9 @@ Patch25169: 0001-Revert-selinux-consider-filesystem-subtype-in-polici.patch
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Patch25170: 0001-drm-radeon-dpm-Fix-hwmon-crash.patch
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Patch25170: 0001-drm-radeon-dpm-Fix-hwmon-crash.patch
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#rhbz 1030802
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Patch25171: elantech-Properly-differentiate-between-clickpads-an.patch
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# END OF PATCH DEFINITIONS
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# END OF PATCH DEFINITIONS
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%endif
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%endif
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@ -1388,6 +1391,9 @@ ApplyPatch 0001-Revert-selinux-consider-filesystem-subtype-in-polici.patch
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ApplyPatch 0001-drm-radeon-dpm-Fix-hwmon-crash.patch
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ApplyPatch 0001-drm-radeon-dpm-Fix-hwmon-crash.patch
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#rhbz 1030802
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ApplyPatch elantech-Properly-differentiate-between-clickpads-an.patch
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# END OF PATCH APPLICATIONS
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# END OF PATCH APPLICATIONS
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%endif
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%endif
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@ -2200,6 +2206,9 @@ fi
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# ||----w |
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# || ||
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%changelog
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%changelog
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* Wed Dec 11 2013 Josh Boyer <jwboyer@fedoraproject.org>
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- Add patches to support ETPS/2 Elantech touchpads (rhbz 1030802)
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* Tue Dec 10 2013 Josh Boyer <jwboyer@fedoraproject.org> - 3.13.0-0.rc3.git1.2
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* Tue Dec 10 2013 Josh Boyer <jwboyer@fedoraproject.org> - 3.13.0-0.rc3.git1.2
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- Revert upstream selinux change causing sync hang (rhbz 1033965)
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- Revert upstream selinux change causing sync hang (rhbz 1033965)
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- Add patch to fix radeon from crashing
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- Add patch to fix radeon from crashing
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