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Subject[PATCH v3 2/8] Input: synaptics-rmi4: Add parameters for dribble packets and palm detect gesture
Date
The rmi_f11 driver currently disables dribble packets and the palm detect
gesture for all devices. This patch creates a parameter in the 2d sensor
platform data for controlling this functionality on a per device basis.

For more information on dribble packets:
Commit 05ba999fcabb ("HID: rmi: disable dribble packets on Synaptics
touchpads")

For more information on the palm detect gesture:
Commit f097deef59a6 ("HID: rmi: disable palm detect gesture when present")

Signed-off-by: Andrew Duggan <aduggan@synaptics.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
---
V2 changes dribble and palm_detect to type enum rmi_reg_state from int.
This version is the same as V2.

drivers/input/rmi4/rmi_2d_sensor.h | 2 ++
drivers/input/rmi4/rmi_f01.c | 6 +++---
drivers/input/rmi4/rmi_f11.c | 32 ++++++++++++++++++++++++++++----
include/linux/rmi.h | 21 +++++++++++++--------
4 files changed, 46 insertions(+), 15 deletions(-)

diff --git a/drivers/input/rmi4/rmi_2d_sensor.h b/drivers/input/rmi4/rmi_2d_sensor.h
index 77fcdfe..c871bef 100644
--- a/drivers/input/rmi4/rmi_2d_sensor.h
+++ b/drivers/input/rmi4/rmi_2d_sensor.h
@@ -67,6 +67,8 @@ struct rmi_2d_sensor {
u8 report_rel;
u8 x_mm;
u8 y_mm;
+ enum rmi_reg_state dribble;
+ enum rmi_reg_state palm_detect;
};

int rmi_2d_sensor_of_probe(struct device *dev,
diff --git a/drivers/input/rmi4/rmi_f01.c b/drivers/input/rmi4/rmi_f01.c
index fac81fc..2cfa9f6 100644
--- a/drivers/input/rmi4/rmi_f01.c
+++ b/drivers/input/rmi4/rmi_f01.c
@@ -327,12 +327,12 @@ static int rmi_f01_probe(struct rmi_function *fn)
}

switch (pdata->power_management.nosleep) {
- case RMI_F01_NOSLEEP_DEFAULT:
+ case RMI_REG_STATE_DEFAULT:
break;
- case RMI_F01_NOSLEEP_OFF:
+ case RMI_REG_STATE_OFF:
f01->device_control.ctrl0 &= ~RMI_F01_CTRL0_NOSLEEP_BIT;
break;
- case RMI_F01_NOSLEEP_ON:
+ case RMI_REG_STATE_ON:
f01->device_control.ctrl0 |= RMI_F01_CTRL0_NOSLEEP_BIT;
break;
}
diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index ec8a10d..e691432 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -1125,6 +1125,8 @@ static int rmi_f11_initialize(struct rmi_function *fn)
sensor->topbuttonpad = f11->sensor_pdata.topbuttonpad;
sensor->kernel_tracking = f11->sensor_pdata.kernel_tracking;
sensor->dmax = f11->sensor_pdata.dmax;
+ sensor->dribble = f11->sensor_pdata.dribble;
+ sensor->palm_detect = f11->sensor_pdata.palm_detect;

if (f11->sens_query.has_physical_props) {
sensor->x_mm = f11->sens_query.x_sensor_size_mm;
@@ -1192,11 +1194,33 @@ static int rmi_f11_initialize(struct rmi_function *fn)
ctrl->ctrl0_11[RMI_F11_DELTA_Y_THRESHOLD] =
sensor->axis_align.delta_y_threshold;

- if (f11->sens_query.has_dribble)
- ctrl->ctrl0_11[0] = ctrl->ctrl0_11[0] & ~BIT(6);
+ if (f11->sens_query.has_dribble) {
+ switch (sensor->dribble) {
+ case RMI_REG_STATE_OFF:
+ ctrl->ctrl0_11[0] = ctrl->ctrl0_11[0] & ~BIT(6);
+ break;
+ case RMI_REG_STATE_ON:
+ ctrl->ctrl0_11[0] = ctrl->ctrl0_11[0] | BIT(6);
+ break;
+ case RMI_REG_STATE_DEFAULT:
+ default:
+ break;
+ }
+ }

- if (f11->sens_query.has_palm_det)
- ctrl->ctrl0_11[11] = ctrl->ctrl0_11[11] & ~BIT(0);
+ if (f11->sens_query.has_palm_det) {
+ switch (sensor->palm_detect) {
+ case RMI_REG_STATE_OFF:
+ ctrl->ctrl0_11[11] = ctrl->ctrl0_11[11] & ~BIT(0);
+ break;
+ case RMI_REG_STATE_ON:
+ ctrl->ctrl0_11[11] = ctrl->ctrl0_11[11] & BIT(0);
+ break;
+ case RMI_REG_STATE_DEFAULT:
+ default:
+ break;
+ }
+ }

rc = f11_write_control_regs(fn, &f11->sens_query,
&f11->dev_controls, fn->fd.query_base_addr);
diff --git a/include/linux/rmi.h b/include/linux/rmi.h
index e0aca14..bda72f2 100644
--- a/include/linux/rmi.h
+++ b/include/linux/rmi.h
@@ -99,6 +99,8 @@ struct rmi_2d_sensor_platform_data {
bool topbuttonpad;
bool kernel_tracking;
int dmax;
+ int dribble;
+ int palm_detect;
};

/**
@@ -116,14 +118,17 @@ struct rmi_f30_data {
bool disable;
};

-/**
- * struct rmi_f01_power - override default power management settings.
- *
+
+/*
+ * Set the state of a register
+ * DEFAULT - use the default value set by the firmware config
+ * OFF - explicitly disable the register
+ * ON - explicitly enable the register
*/
-enum rmi_f01_nosleep {
- RMI_F01_NOSLEEP_DEFAULT = 0,
- RMI_F01_NOSLEEP_OFF = 1,
- RMI_F01_NOSLEEP_ON = 2
+enum rmi_reg_state {
+ RMI_REG_STATE_DEFAULT = 0,
+ RMI_REG_STATE_OFF = 1,
+ RMI_REG_STATE_ON = 2
};

/**
@@ -143,7 +148,7 @@ enum rmi_f01_nosleep {
* when the touch sensor is in doze mode, in units of 10ms.
*/
struct rmi_f01_power_management {
- enum rmi_f01_nosleep nosleep;
+ enum rmi_reg_state nosleep;
u8 wakeup_threshold;
u8 doze_holdoff;
u8 doze_interval;
--
2.5.0
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