[PATCH v3 2/8] Input: elantech - add helper function elantech_is_buttonpad()

Benjamin Tissoires
2019-05-24T13:50:40Z

We check for this bit all over the code, better have it defined once
for all.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

--

no changes in v3
changes in v2:
- updated with latest upstream
---
drivers/input/mouse/elantech.c | 93 ++++++++++++++++++----------------
1 file changed, 49 insertions(+), 44 deletions(-)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 5953c21774d7..34b96b96fc96 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -229,6 +229,52 @@ static void elantech_packet_dump(struct psmouse *psmouse)
psmouse->pktsize, psmouse->packet);
}

+/*
+ * 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 TP500LN 0x381f17 10, 14, 0e clickpad
+ * Asus X750JN 0x381f17 10, 14, 0e clickpad
+ * Asus UX31 0x361f00 20, 15, 0e clickpad
+ * Asus UX32VD 0x361f02 00, 15, 0e clickpad
+ * Avatar AVIU-145A2 0x361f00 ? clickpad
+ * Fujitsu CELSIUS H760 0x570f02 40, 14, 0c 3 hw buttons (**)
+ * Fujitsu CELSIUS H780 0x5d0f02 41, 16, 0d 3 hw buttons (**)
+ * Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E546 0x470f00 50, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons
+ * Fujitsu LIFEBOOK E554 0x570f01 40, 14, 0c 2 hw buttons
+ * Fujitsu LIFEBOOK E557 0x570f01 40, 14, 0c 2 hw buttons
+ * Fujitsu T725 0x470f01 05, 12, 09 2 hw buttons
+ * Fujitsu H730 0x570f00 c0, 14, 0c 3 hw buttons (**)
+ * Gigabyte U2442 0x450f01 58, 17, 0c 2 hw buttons
+ * Lenovo L430 0x350f02 b9, 15, 0c 2 hw buttons (*)
+ * Lenovo L530 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
+ * (**) + 0 trackpoint buttons
+ * Note: Lenovo L430 and Lenovo L530 have the same fw_version/caps
+ */
+static inline int elantech_is_buttonpad(struct elantech_device_info *info)
+{
+ return info->fw_version & 0x001000;
+}
+
/*
* Interpret complete data packets and report absolute mode input events for
* hardware version 1. (4 byte packets)
@@ -526,7 +572,7 @@ static void elantech_report_absolute_v3(struct psmouse *psmouse,
input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);

/* For clickpads map both buttons to BTN_LEFT */
- if (etd->info.fw_version & 0x001000)
+ if (elantech_is_buttonpad(&etd->info))
input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
else
psmouse_report_standard_buttons(dev, packet[0]);
@@ -544,7 +590,7 @@ static void elantech_input_sync_v4(struct psmouse *psmouse)
unsigned char *packet = psmouse->packet;

/* For clickpads map both buttons to BTN_LEFT */
- if (etd->info.fw_version & 0x001000)
+ if (elantech_is_buttonpad(&etd->info))
input_report_key(dev, BTN_LEFT, packet[0] & 0x03);
else
psmouse_report_standard_buttons(dev, packet[0]);
@@ -1020,53 +1066,12 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse,
return 0;
}

-/*
- * 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 TP500LN 0x381f17 10, 14, 0e clickpad
- * Asus X750JN 0x381f17 10, 14, 0e clickpad
- * Asus UX31 0x361f00 20, 15, 0e clickpad
- * Asus UX32VD 0x361f02 00, 15, 0e clickpad
- * Avatar AVIU-145A2 0x361f00 ? clickpad
- * Fujitsu CELSIUS H760 0x570f02 40, 14, 0c 3 hw buttons (**)
- * Fujitsu CELSIUS H780 0x5d0f02 41, 16, 0d 3 hw buttons (**)
- * Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons
- * Fujitsu LIFEBOOK E546 0x470f00 50, 12, 09 2 hw buttons
- * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons
- * Fujitsu LIFEBOOK E554 0x570f01 40, 14, 0c 2 hw buttons
- * Fujitsu LIFEBOOK E557 0x570f01 40, 14, 0c 2 hw buttons
- * Fujitsu T725 0x470f01 05, 12, 09 2 hw buttons
- * Fujitsu H730 0x570f00 c0, 14, 0c 3 hw buttons (**)
- * Gigabyte U2442 0x450f01 58, 17, 0c 2 hw buttons
- * Lenovo L430 0x350f02 b9, 15, 0c 2 hw buttons (*)
- * Lenovo L530 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
- * (**) + 0 trackpoint buttons
- * Note: Lenovo L430 and Lenovo L530 have the same fw_version/caps
- */
static void elantech_set_buttonpad_prop(struct psmouse *psmouse)
{
struct input_dev *dev = psmouse->dev;
struct elantech_data *etd = psmouse->private;

- if (etd->info.fw_version & 0x001000) {
+ if (elantech_is_buttonpad(&etd->info)) {
__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
__clear_bit(BTN_RIGHT, dev->keybit);
}
--
2.21.0