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path: root/drivers/input/mouse/synaptics.c
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Diffstat (limited to 'drivers/input/mouse/synaptics.c')
-rw-r--r--drivers/input/mouse/synaptics.c92
1 files changed, 58 insertions, 34 deletions
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 89ab77a211b5..0d7c781674ca 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1228,32 +1228,39 @@ static void set_abs_position_params(struct input_dev *dev,
input_abs_set_res(dev, y_code, info->y_res);
}
-static void set_input_params(struct psmouse *psmouse,
- struct synaptics_data *priv)
+static int set_input_params(struct psmouse *psmouse,
+ struct synaptics_data *priv)
{
struct input_dev *dev = psmouse->dev;
struct synaptics_device_info *info = &priv->info;
int i;
+ int error;
+
+ /* Reset default psmouse capabilities */
+ __clear_bit(EV_REL, dev->evbit);
+ bitmap_zero(dev->relbit, REL_CNT);
+ bitmap_zero(dev->keybit, KEY_CNT);
/* Things that apply to both modes */
__set_bit(INPUT_PROP_POINTER, dev->propbit);
- __set_bit(EV_KEY, dev->evbit);
- __set_bit(BTN_LEFT, dev->keybit);
- __set_bit(BTN_RIGHT, dev->keybit);
- if (SYN_CAP_MIDDLE_BUTTON(info->capabilities))
- __set_bit(BTN_MIDDLE, dev->keybit);
+ input_set_capability(dev, EV_KEY, BTN_LEFT);
+
+ /* Clickpads report only left button */
+ if (!SYN_CAP_CLICKPAD(info->ext_cap_0c)) {
+ input_set_capability(dev, EV_KEY, BTN_RIGHT);
+ if (SYN_CAP_MIDDLE_BUTTON(info->capabilities))
+ input_set_capability(dev, EV_KEY, BTN_MIDDLE);
+ }
if (!priv->absolute_mode) {
/* Relative mode */
- __set_bit(EV_REL, dev->evbit);
- __set_bit(REL_X, dev->relbit);
- __set_bit(REL_Y, dev->relbit);
- return;
+ input_set_capability(dev, EV_REL, REL_X);
+ input_set_capability(dev, EV_REL, REL_Y);
+ return 0;
}
/* Absolute mode */
- __set_bit(EV_ABS, dev->evbit);
set_abs_position_params(dev, &priv->info, ABS_X, ABS_Y);
input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
@@ -1265,11 +1272,15 @@ static void set_input_params(struct psmouse *psmouse,
ABS_MT_POSITION_X, ABS_MT_POSITION_Y);
/* Image sensors can report per-contact pressure */
input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
- input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
+
+ error = input_mt_init_slots(dev, 2,
+ INPUT_MT_POINTER | INPUT_MT_TRACK);
+ if (error)
+ return error;
/* Image sensors can signal 4 and 5 finger clicks */
- __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
- __set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
+ input_set_capability(dev, EV_KEY, BTN_TOOL_QUADTAP);
+ input_set_capability(dev, EV_KEY, BTN_TOOL_QUINTTAP);
} else if (SYN_CAP_ADV_GESTURE(info->ext_cap_0c)) {
set_abs_position_params(dev, info,
ABS_MT_POSITION_X, ABS_MT_POSITION_Y);
@@ -1277,46 +1288,54 @@ static void set_input_params(struct psmouse *psmouse,
* Profile sensor in CR-48 tracks contacts reasonably well,
* other non-image sensors with AGM use semi-mt.
*/
- input_mt_init_slots(dev, 2,
- INPUT_MT_POINTER |
- (cr48_profile_sensor ?
- INPUT_MT_TRACK : INPUT_MT_SEMI_MT));
+ error = input_mt_init_slots(dev, 2,
+ INPUT_MT_POINTER |
+ (cr48_profile_sensor ?
+ INPUT_MT_TRACK :
+ INPUT_MT_SEMI_MT));
+ if (error)
+ return error;
+
+ /*
+ * For semi-mt devices we send ABS_X/Y ourselves instead of
+ * input_mt_report_pointer_emulation. But
+ * input_mt_init_slots() resets the fuzz to 0, leading to a
+ * filtered ABS_MT_POSITION_X but an unfiltered ABS_X
+ * position. Let's re-initialize ABS_X/Y here.
+ */
+ if (!cr48_profile_sensor)
+ set_abs_position_params(dev, &priv->info, ABS_X, ABS_Y);
}
if (SYN_CAP_PALMDETECT(info->capabilities))
input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
- __set_bit(BTN_TOUCH, dev->keybit);
- __set_bit(BTN_TOOL_FINGER, dev->keybit);
+ input_set_capability(dev, EV_KEY, BTN_TOUCH);
+ input_set_capability(dev, EV_KEY, BTN_TOOL_FINGER);
if (synaptics_has_multifinger(priv)) {
- __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
- __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
+ input_set_capability(dev, EV_KEY, BTN_TOOL_DOUBLETAP);
+ input_set_capability(dev, EV_KEY, BTN_TOOL_TRIPLETAP);
}
if (SYN_CAP_FOUR_BUTTON(info->capabilities) ||
SYN_CAP_MIDDLE_BUTTON(info->capabilities)) {
- __set_bit(BTN_FORWARD, dev->keybit);
- __set_bit(BTN_BACK, dev->keybit);
+ input_set_capability(dev, EV_KEY, BTN_FORWARD);
+ input_set_capability(dev, EV_KEY, BTN_BACK);
}
if (!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10))
for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(info->ext_cap); i++)
- __set_bit(BTN_0 + i, dev->keybit);
-
- __clear_bit(EV_REL, dev->evbit);
- __clear_bit(REL_X, dev->relbit);
- __clear_bit(REL_Y, dev->relbit);
+ input_set_capability(dev, EV_KEY, BTN_0 + i);
if (SYN_CAP_CLICKPAD(info->ext_cap_0c)) {
__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10))
__set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
- /* Clickpads report only left button */
- __clear_bit(BTN_RIGHT, dev->keybit);
- __clear_bit(BTN_MIDDLE, dev->keybit);
}
+
+ return 0;
}
static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse,
@@ -1554,7 +1573,12 @@ static int synaptics_init_ps2(struct psmouse *psmouse,
info->capabilities, info->ext_cap, info->ext_cap_0c,
info->ext_cap_10, info->board_id, info->firmware_id);
- set_input_params(psmouse, priv);
+ err = set_input_params(psmouse, priv);
+ if (err) {
+ psmouse_err(psmouse,
+ "failed to set up capabilities: %d\n", err);
+ goto init_fail;
+ }
/*
* Encode touchpad model so that it can be used to set