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Commit 945525ee authored by Dudley Du's avatar Dudley Du Committed by Dmitry Torokhov
Browse files

Input: cyapa - add proximity support for gen5 and gen6 modules 



Gen5 and Gen6 trackpad devices are able to detect and report object
proximity data/events, add this function support in the cyapa driver
through the ABS_DISTANCE event.

Signed-off-by: default avatarDudley Du <dudl@cypress.com>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent c2c06c41

drivers/input/mouse/cyapa.c

+12 −1
Original line number Diff line number Diff line
@@ -477,6 +477,7 @@ static int cyapa_create_input_dev(struct cyapa *cyapa) 
	if (cyapa->gen >= CYAPA_GEN5) {

		input_set_abs_params(input, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);

		input_set_abs_params(input, ABS_MT_WIDTH_MINOR, 0, 255, 0, 0);

		input_set_abs_params(input, ABS_DISTANCE, 0, 1, 0, 0);

	}



	input_abs_set_res(input, ABS_MT_POSITION_X,
@@ -1340,6 +1341,13 @@ static int __maybe_unused cyapa_suspend(struct device *dev) 
					error);

	}



	/*

	 * Disable proximity interrupt when system idle, want true touch to

	 * wake the system.

	 */

	if (cyapa->dev_pwr_mode != PWR_MODE_OFF)

		cyapa->ops->set_proximity(cyapa, false);



	if (device_may_wakeup(dev))

		cyapa->irq_wake = (enable_irq_wake(client->irq) == 0);
@@ -1360,7 +1368,10 @@ static int __maybe_unused cyapa_resume(struct device *dev) 
		cyapa->irq_wake = false;

	}



	/* Update device states and runtime PM states. */

	/*

	 * Update device states and runtime PM states.

	 * Re-Enable proximity interrupt after enter operational mode.

	 */

	error = cyapa_reinitialize(cyapa);

	if (error)

		dev_warn(dev, "failed to reinitialize TP device: %d\n", error);

drivers/input/mouse/cyapa.h

+3 −0
Original line number Diff line number Diff line
@@ -274,6 +274,8 @@ struct cyapa_dev_ops { 
			u8 *, int *, cb_sort);



	int (*set_power_mode)(struct cyapa *, u8, u16);



	int (*set_proximity)(struct cyapa *, bool);

};



struct cyapa_pip_cmd_states {
@@ -415,6 +417,7 @@ int cyapa_pip_bl_deactivate(struct cyapa *cyapa); 
ssize_t cyapa_pip_do_calibrate(struct device *dev,

			       struct device_attribute *attr,

			       const char *buf, size_t count);

int cyapa_pip_set_proximity(struct cyapa *cyapa, bool enable);



bool cyapa_pip_irq_cmd_handler(struct cyapa *cyapa);

int cyapa_pip_irq_handler(struct cyapa *cyapa);

drivers/input/mouse/cyapa_gen3.c

+7 −0
Original line number Diff line number Diff line
@@ -999,6 +999,11 @@ static int cyapa_gen3_set_power_mode(struct cyapa *cyapa, u8 power_mode, 
	return ret;

}



static int cyapa_gen3_set_proximity(struct cyapa *cyapa, bool enable)

{

	return -EOPNOTSUPP;

}



static int cyapa_gen3_get_query_data(struct cyapa *cyapa)

{

	u8 query_data[QUERY_DATA_SIZE];
@@ -1243,4 +1248,6 @@ const struct cyapa_dev_ops cyapa_gen3_ops = { 
	.irq_cmd_handler = cyapa_gen3_irq_cmd_handler,

	.sort_empty_output_data = cyapa_gen3_empty_output_data,

	.set_power_mode = cyapa_gen3_set_power_mode,



	.set_proximity = cyapa_gen3_set_proximity,

};

drivers/input/mouse/cyapa_gen5.c

+60 −1
Original line number Diff line number Diff line
@@ -52,6 +52,11 @@ 
#define PIP_WAKEUP_EVENT_REPORT_ID  0x04

#define PIP_PUSH_BTN_REPORT_ID      0x06

#define GEN5_OLD_PUSH_BTN_REPORT_ID 0x05  /* Special for old Gen5 TP. */

#define PIP_PROXIMITY_REPORT_ID     0x07



#define PIP_PROXIMITY_REPORT_SIZE	6

#define PIP_PROXIMITY_DISTANCE_OFFSET	0x05

#define PIP_PROXIMITY_DISTANCE_MASK	0x01



#define PIP_TOUCH_REPORT_HEAD_SIZE     7

#define PIP_TOUCH_REPORT_MAX_SIZE      127
@@ -78,6 +83,8 @@ 
#define PIP_SENSING_MODE_MUTUAL_CAP_FINE   0x00

#define PIP_SENSING_MODE_SELF_CAP          0x02



#define PIP_SET_PROXIMITY	0x49



/* Macro of Gen5 */

#define GEN5_BL_MAX_OUTPUT_LENGTH     0x0100

#define GEN5_APP_MAX_OUTPUT_LENGTH    0x00fe
@@ -1517,6 +1524,28 @@ static int cyapa_gen5_disable_pip_report(struct cyapa *cyapa) 
	return 0;

}



int cyapa_pip_set_proximity(struct cyapa *cyapa, bool enable)

{

	u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, PIP_SET_PROXIMITY,

		     (u8)!!enable

	};

	u8 resp_data[6];

	int resp_len;

	int error;



	resp_len = sizeof(resp_data);

	error = cyapa_i2c_pip_cmd_irq_sync(cyapa, cmd, sizeof(cmd),

			resp_data, &resp_len,

			500, cyapa_sort_tsg_pip_app_resp_data, false);

	if (error || !VALID_CMD_RESP_HEADER(resp_data, PIP_SET_PROXIMITY) ||

			!PIP_CMD_COMPLETE_SUCCESS(resp_data)) {

		error = (error == -ETIMEDOUT) ? -EOPNOTSUPP : error;

		return error < 0 ? error : -EINVAL;

	}



	return 0;

}



int cyapa_pip_deep_sleep(struct cyapa *cyapa, u8 state)

{

	u8 cmd[] = { 0x05, 0x00, 0x00, 0x08};
@@ -2491,6 +2520,12 @@ static int cyapa_gen5_do_operational_check(struct cyapa *cyapa) 
			dev_warn(dev, "%s: failed to set power active mode.\n",

				__func__);



		/* By default, the trackpad proximity function is enabled. */

		error = cyapa_pip_set_proximity(cyapa, true);

		if (error)

			dev_warn(dev, "%s: failed to enable proximity.\n",

				__func__);



		/* Get trackpad product information. */

		error = cyapa_gen5_get_query_data(cyapa);

		if (error)
@@ -2607,6 +2642,17 @@ static void cyapa_pip_report_buttons(struct cyapa *cyapa, 
	input_sync(input);

}



static void cyapa_pip_report_proximity(struct cyapa *cyapa,

		const struct cyapa_pip_report_data *report_data)

{

	struct input_dev *input = cyapa->input;

	u8 distance = report_data->report_head[PIP_PROXIMITY_DISTANCE_OFFSET] &

			PIP_PROXIMITY_DISTANCE_MASK;



	input_report_abs(input, ABS_DISTANCE, distance);

	input_sync(input);

}



static void cyapa_pip_report_slot_data(struct cyapa *cyapa,

		const struct cyapa_pip_touch_record *touch)

{
@@ -2628,6 +2674,7 @@ static void cyapa_pip_report_slot_data(struct cyapa *cyapa, 
		y = cyapa->max_abs_y - y;

	input_report_abs(input, ABS_MT_POSITION_X, x);

	input_report_abs(input, ABS_MT_POSITION_Y, y);

	input_report_abs(input, ABS_DISTANCE, 0);

	input_report_abs(input, ABS_MT_PRESSURE,

		touch->z);

	input_report_abs(input, ABS_MT_TOUCH_MAJOR,
@@ -2715,7 +2762,8 @@ int cyapa_pip_irq_handler(struct cyapa *cyapa) 
	} else if (report_id != PIP_TOUCH_REPORT_ID &&

			report_id != PIP_BTN_REPORT_ID &&

			report_id != GEN5_OLD_PUSH_BTN_REPORT_ID &&

			report_id != PIP_PUSH_BTN_REPORT_ID) {

			report_id != PIP_PUSH_BTN_REPORT_ID &&

			report_id != PIP_PROXIMITY_REPORT_ID) {

		/* Running in BL mode or unknown response data read. */

		dev_err(dev, "invalid report_id=0x%02x\n", report_id);

		return -EINVAL;
@@ -2739,8 +2787,17 @@ int cyapa_pip_irq_handler(struct cyapa *cyapa) 
		return 0;

	}



	if (report_id == PIP_PROXIMITY_REPORT_ID &&

			report_len != PIP_PROXIMITY_REPORT_SIZE) {

		/* Invalid report data length of proximity packet. */

		dev_err(dev, "invalid proximity data, length=%d\n", report_len);

		return 0;

	}



	if (report_id == PIP_TOUCH_REPORT_ID)

		cyapa_pip_report_touches(cyapa, &report_data);

	else if (report_id == PIP_PROXIMITY_REPORT_ID)

		cyapa_pip_report_proximity(cyapa, &report_data);

	else

		cyapa_pip_report_buttons(cyapa, &report_data);
@@ -2771,4 +2828,6 @@ const struct cyapa_dev_ops cyapa_gen5_ops = { 
	.irq_cmd_handler = cyapa_pip_irq_cmd_handler,

	.sort_empty_output_data = cyapa_empty_pip_output_data,

	.set_power_mode = cyapa_gen5_set_power_mode,



	.set_proximity = cyapa_pip_set_proximity,

};

drivers/input/mouse/cyapa_gen6.c

+19 −0
Original line number Diff line number Diff line
@@ -310,6 +310,17 @@ static int cyapa_gen6_config_dev_irq(struct cyapa *cyapa, u8 cmd_code) 
	return 0;

}



static int cyapa_gen6_set_proximity(struct cyapa *cyapa, bool enable)

{

	int error;



	cyapa_gen6_config_dev_irq(cyapa, GEN6_DISABLE_CMD_IRQ);

	error = cyapa_pip_set_proximity(cyapa, enable);

	cyapa_gen6_config_dev_irq(cyapa, GEN6_ENABLE_CMD_IRQ);



	return error;

}



static int cyapa_gen6_change_power_state(struct cyapa *cyapa, u8 power_mode)

{

	u8 cmd[] = { 0x04, 0x00, 0x06, 0x00, 0x2f, 0x00, 0x46, power_mode };
@@ -687,6 +698,12 @@ static int cyapa_gen6_operational_check(struct cyapa *cyapa) 
			dev_warn(dev, "%s: failed to set power active mode.\n",

				__func__);



		/* By default, the trackpad proximity function is enabled. */

		error = cyapa_pip_set_proximity(cyapa, true);

		if (error)

			dev_warn(dev, "%s: failed to enable proximity.\n",

				__func__);



		/* Get trackpad product information. */

		error = cyapa_gen6_read_sys_info(cyapa);

		if (error)
@@ -727,4 +744,6 @@ const struct cyapa_dev_ops cyapa_gen6_ops = { 
	.irq_cmd_handler = cyapa_pip_irq_cmd_handler,

	.sort_empty_output_data = cyapa_empty_pip_output_data,

	.set_power_mode = cyapa_gen6_set_power_mode,



	.set_proximity = cyapa_gen6_set_proximity,

};