Commit 51e4270c authored by Derek J. Clark's avatar Derek J. Clark Committed by Jiri Kosina
Browse files

HID: hid-lenovo-go: Add OS Mode Toggle 



Adds OS Mode toggle, who's primary function is to change the built-in
functional chords to use the right handle legion button instead of the
left handle legion button as the mode shift key.

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 995887a1

drivers/hid/hid-lenovo-go.c

+101 −0
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ static struct hid_go_cfg { 
	u32 mcu_version_product;

	u32 mcu_version_protocol;

	u32 mouse_dpi;

	u8 os_mode;

	u8 rgb_effect;

	u8 rgb_en;

	u8 rgb_mode;
@@ -166,6 +167,8 @@ enum feature_status_index { 
	FEATURE_GAMEPAD_MODE = 0x0e,

};



#define FEATURE_OS_MODE 0x69



enum fps_switch_status_index {

	FPS_STATUS_UNKNOWN,

	GAMEPAD,
@@ -311,6 +314,23 @@ enum device_status_index { 
	GET_HOTKEY_TRIGG_STATUS,

};



enum os_mode_cfg_index {

	SET_OS_MODE = 0x09,

	GET_OS_MODE,

};



enum os_mode_type_index {

	OS_UNKNOWN,

	WINDOWS,

	LINUX,

};



static const char *const os_mode_text[] = {

	[OS_UNKNOWN] = "unknown",

	[WINDOWS] = "windows",

	[LINUX] = "linux",

};



static int hid_go_version_event(struct command_report *cmd_rep)

{

	switch (cmd_rep->sub_cmd) {
@@ -593,6 +613,21 @@ static int hid_go_device_status_event(struct command_report *cmd_rep) 
	}

}



static int hid_go_os_mode_cfg_event(struct command_report *cmd_rep)

{

	switch (cmd_rep->sub_cmd) {

	case SET_OS_MODE:

		if (cmd_rep->data[0] != 1)

			return -EIO;

		return 0;

	case GET_OS_MODE:

		drvdata.os_mode = cmd_rep->data[0];

		return 0;

	default:

		return -EINVAL;

	};

}



static int hid_go_set_event_return(struct command_report *cmd_rep)

{

	if (cmd_rep->data[0] != 0)
@@ -666,6 +701,9 @@ static int hid_go_raw_event(struct hid_device *hdev, struct hid_report *report, 
			break;

		};

		break;

	case OS_MODE_DATA:

		ret = hid_go_os_mode_cfg_event(cmd_rep);

		break;

	default:

		goto passthrough;

	};
@@ -1343,6 +1381,64 @@ static ssize_t calibrate_config_options(struct device *dev, 
	return count;

}



static ssize_t os_mode_store(struct device *dev, struct device_attribute *attr,

			     const char *buf, size_t count)

{

	size_t size = 1;

	int ret;

	u8 val;



	ret = sysfs_match_string(os_mode_text, buf);

	if (ret <= 0)

		return ret;



	val = ret;

	ret = mcu_property_out(drvdata.hdev, OS_MODE_DATA, FEATURE_OS_MODE,

			       SET_OS_MODE, USB_MCU, &val, size);

	if (ret < 0)

		return ret;



	drvdata.os_mode = val;



	return count;

}



static ssize_t os_mode_show(struct device *dev, struct device_attribute *attr,

			    char *buf)

{

	ssize_t count = 0;

	int ret;

	u8 i;



	ret = mcu_property_out(drvdata.hdev, OS_MODE_DATA, FEATURE_OS_MODE,

			       GET_OS_MODE, USB_MCU, NULL, 0);

	if (ret)

		return ret;



	i = drvdata.os_mode;

	if (i >= ARRAY_SIZE(os_mode_text))

		return -EINVAL;



	count = sysfs_emit(buf, "%s\n", os_mode_text[i]);



	return count;

}



static ssize_t os_mode_index_show(struct device *dev,

				  struct device_attribute *attr, char *buf)

{

	ssize_t count = 0;

	unsigned int i;



	for (i = 1; i < ARRAY_SIZE(os_mode_text); i++)

		count += sysfs_emit_at(buf, count, "%s ", os_mode_text[i]);



	if (count)

		buf[count - 1] = '\n';



	return count;

}



static int rgb_cfg_call(struct hid_device *hdev, enum mcu_command_index cmd,

			enum rgb_config_index index, u8 *val, size_t size)

{
@@ -1712,6 +1808,9 @@ static DEVICE_ATTR_RO_NAMED(gamepad_rumble_intensity_index, 
static DEVICE_ATTR_RW(fps_mode_dpi);

static DEVICE_ATTR_RO(fps_mode_dpi_index);



static DEVICE_ATTR_RW(os_mode);

static DEVICE_ATTR_RO(os_mode_index);



static struct attribute *mcu_attrs[] = {

	&dev_attr_fps_mode_dpi.attr,

	&dev_attr_fps_mode_dpi_index.attr,
@@ -1720,6 +1819,8 @@ static struct attribute *mcu_attrs[] = { 
	&dev_attr_gamepad_mode_index.attr,

	&dev_attr_gamepad_rumble_intensity.attr,

	&dev_attr_gamepad_rumble_intensity_index.attr,

	&dev_attr_os_mode.attr,

	&dev_attr_os_mode_index.attr,

	&dev_attr_reset_mcu.attr,

	&dev_attr_version_firmware_mcu.attr,

	&dev_attr_version_gen_mcu.attr,