Commit f0bedee6 authored by Derek J. Clark's avatar Derek J. Clark Committed by Jiri Kosina
Browse files

HID: hid-lenovo-go: Add FPS Mode DPI settings 



Adds attribute that enables selection of the DPI of the optical sensor
when the right handle toggle is set to FPS mode.

Reviewed-by: default avatarMark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: default avatarDerek J. Clark <derekjohn.clark@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.com>
parent 96b20c1f

drivers/hid/hid-lenovo-go.c

+68 −0
Original line number Diff line number Diff line
@@ -67,6 +67,7 @@ static struct hid_go_cfg { 
	u32 mcu_version_hardware;

	u32 mcu_version_product;

	u32 mcu_version_protocol;

	u32 mouse_dpi;

	u8 rgb_en;

	u8 tp_en;

	u8 tp_vibration_en;
@@ -220,6 +221,8 @@ static const char *const rumble_mode_text[] = { 
	[RUMBLE_MODE_RPG] = "rpg",

};



#define FPS_MODE_DPI           0x02



static int hid_go_version_event(struct command_report *cmd_rep)

{

	switch (cmd_rep->sub_cmd) {
@@ -427,6 +430,16 @@ static int hid_go_motor_event(struct command_report *cmd_rep) 
	return -EINVAL;

}



static int hid_go_fps_dpi_event(struct command_report *cmd_rep)

{

	if (cmd_rep->sub_cmd != FPS_MODE_DPI)

		return -EINVAL;



	drvdata.mouse_dpi = get_unaligned_le32(cmd_rep->data);



	return 0;

}



static int hid_go_set_event_return(struct command_report *cmd_rep)

{

	if (cmd_rep->data[0] != 0)
@@ -477,8 +490,12 @@ static int hid_go_raw_event(struct hid_device *hdev, struct hid_report *report, 
		case GET_MOTOR_CFG:

			ret = hid_go_motor_event(cmd_rep);

			break;

		case GET_DPI_CFG:

			ret = hid_go_fps_dpi_event(cmd_rep);

			break;

		case SET_FEATURE_STATUS:

		case SET_MOTOR_CFG:

		case SET_DPI_CFG:

			ret = hid_go_set_event_return(cmd_rep);

			break;

		default:
@@ -1016,6 +1033,52 @@ static ssize_t motor_config_options(struct device *dev, 
	return count;

}



static ssize_t fps_mode_dpi_store(struct device *dev,

				  struct device_attribute *attr,

				  const char *buf, size_t count)



{

	size_t size = 4;

	u32 value;

	u8 val[4];

	int ret;



	ret = kstrtou32(buf, 10, &value);

	if (ret)

		return ret;



	if (value != 500 && value != 800 && value != 1200 && value != 1800)

		return -EINVAL;



	put_unaligned_le32(value, val);



	ret = mcu_property_out(drvdata.hdev, MCU_CONFIG_DATA, SET_DPI_CFG,

			       FPS_MODE_DPI, UNSPECIFIED, val, size);

	if (ret < 0)

		return ret;



	return count;

}



static ssize_t fps_mode_dpi_show(struct device *dev,

				 struct device_attribute *attr, char *buf)

{

	int ret;



	ret = mcu_property_out(drvdata.hdev, MCU_CONFIG_DATA, GET_DPI_CFG,

			       FPS_MODE_DPI, UNSPECIFIED, NULL, 0);

	if (ret < 0)

		return ret;



	return sysfs_emit(buf, "%u\n", drvdata.mouse_dpi);

}



static ssize_t fps_mode_dpi_index_show(struct device *dev,

				       struct device_attribute *attr, char *buf)

{

	return sysfs_emit(buf, "500 800 1200 1800\n");

}



#define LEGO_DEVICE_ATTR_RW(_name, _attrname, _dtype, _rtype, _group)         \

	static ssize_t _name##_store(struct device *dev,                      \

				     struct device_attribute *attr,           \
@@ -1087,7 +1150,12 @@ LEGO_DEVICE_ATTR_RW(gamepad_rumble_intensity, "rumble_intensity", UNSPECIFIED, 
static DEVICE_ATTR_RO_NAMED(gamepad_rumble_intensity_index,

			    "rumble_intensity_index");



static DEVICE_ATTR_RW(fps_mode_dpi);

static DEVICE_ATTR_RO(fps_mode_dpi_index);



static struct attribute *mcu_attrs[] = {

	&dev_attr_fps_mode_dpi.attr,

	&dev_attr_fps_mode_dpi_index.attr,

	&dev_attr_fps_switch_status.attr,

	&dev_attr_gamepad_mode.attr,

	&dev_attr_gamepad_mode_index.attr,