[linux-2.6-block.git] / drivers / hid / hid-roccat-koneplus.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Roccat Kone[+] driver for Linux
 *
 * Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
 */

/*
 */

/*
 * Roccat Kone[+] is an updated/improved version of the Kone with more memory
 * and functionality and without the non-standard behaviours the Kone had.
 * KoneXTD has same capabilities but updated sensor.
 */

#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/hid-roccat.h>
#include "hid-ids.h"
#include "hid-roccat-common.h"
#include "hid-roccat-koneplus.h"

static uint profile_numbers[5] = {0, 1, 2, 3, 4};

static void koneplus_profile_activated(struct koneplus_device *koneplus,
		uint new_profile)
{
	koneplus->actual_profile = new_profile;
}

static int koneplus_send_control(struct usb_device *usb_dev, uint value,
		enum koneplus_control_requests request)
{
	struct roccat_common2_control control;

	if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
			request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
			value > 4)
		return -EINVAL;

	control.command = ROCCAT_COMMON_COMMAND_CONTROL;
	control.value = value;
	control.request = request;

	return roccat_common2_send_with_status(usb_dev,
			ROCCAT_COMMON_COMMAND_CONTROL,
			&control, sizeof(struct roccat_common2_control));
}


/* retval is 0-4 on success, < 0 on error */
static int koneplus_get_actual_profile(struct usb_device *usb_dev)
{
	struct koneplus_actual_profile buf;
	int retval;

	retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
			&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);

	return retval ? retval : buf.actual_profile;
}

static int koneplus_set_actual_profile(struct usb_device *usb_dev,
		int new_profile)
{
	struct koneplus_actual_profile buf;

	buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
	buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
	buf.actual_profile = new_profile;

	return roccat_common2_send_with_status(usb_dev,
			KONEPLUS_COMMAND_ACTUAL_PROFILE,
			&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
}

static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
		char *buf, loff_t off, size_t count,
		size_t real_size, uint command)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	int retval;

	if (off >= real_size)
		return 0;

	if (off != 0 || count != real_size)
		return -EINVAL;

	mutex_lock(&koneplus->koneplus_lock);
	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
	mutex_unlock(&koneplus->koneplus_lock);

	if (retval)
		return retval;

	return real_size;
}

static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
		void const *buf, loff_t off, size_t count,
		size_t real_size, uint command)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	int retval;

	if (off != 0 || count != real_size)
		return -EINVAL;

	mutex_lock(&koneplus->koneplus_lock);
	retval = roccat_common2_send_with_status(usb_dev, command,
			buf, real_size);
	mutex_unlock(&koneplus->koneplus_lock);

	if (retval)
		return retval;

	return real_size;
}

#define KONEPLUS_SYSFS_W(thingy, THINGY) \
static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
		loff_t off, size_t count) \
{ \
	return koneplus_sysfs_write(fp, kobj, buf, off, count, \
			KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
}

#define KONEPLUS_SYSFS_R(thingy, THINGY) \
static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
		loff_t off, size_t count) \
{ \
	return koneplus_sysfs_read(fp, kobj, buf, off, count, \
			KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
}

#define KONEPLUS_SYSFS_RW(thingy, THINGY) \
KONEPLUS_SYSFS_W(thingy, THINGY) \
KONEPLUS_SYSFS_R(thingy, THINGY)

#define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
KONEPLUS_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
	.attr = { .name = #thingy, .mode = 0660 }, \
	.size = KONEPLUS_SIZE_ ## THINGY, \
	.read = koneplus_sysfs_read_ ## thingy, \
	.write = koneplus_sysfs_write_ ## thingy \
}

#define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
KONEPLUS_SYSFS_R(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
	.attr = { .name = #thingy, .mode = 0440 }, \
	.size = KONEPLUS_SIZE_ ## THINGY, \
	.read = koneplus_sysfs_read_ ## thingy, \
}

#define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
KONEPLUS_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
	.attr = { .name = #thingy, .mode = 0220 }, \
	.size = KONEPLUS_SIZE_ ## THINGY, \
	.write = koneplus_sysfs_write_ ## thingy \
}
KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK);
KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO);
KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE);
KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO);
KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR);
KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU);
KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);

static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
		struct kobject *kobj, struct bin_attribute *attr, char *buf,
		loff_t off, size_t count)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	ssize_t retval;

	retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
			KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
	if (retval)
		return retval;

	return koneplus_sysfs_read(fp, kobj, buf, off, count,
			KONEPLUS_SIZE_PROFILE_SETTINGS,
			KONEPLUS_COMMAND_PROFILE_SETTINGS);
}

static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
		struct kobject *kobj, struct bin_attribute *attr, char *buf,
		loff_t off, size_t count)
{
	struct device *dev = kobj_to_dev(kobj)->parent->parent;
	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	ssize_t retval;

	retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
			KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
	if (retval)
		return retval;

	return koneplus_sysfs_read(fp, kobj, buf, off, count,
			KONEPLUS_SIZE_PROFILE_BUTTONS,
			KONEPLUS_COMMAND_PROFILE_BUTTONS);
}

#define PROFILE_ATTR(number)						\
static struct bin_attribute bin_attr_profile##number##_settings = {	\
	.attr = { .name = "profile" #number "_settings", .mode = 0440 },	\
	.size = KONEPLUS_SIZE_PROFILE_SETTINGS,				\
	.read = koneplus_sysfs_read_profilex_settings,			\
	.private = &profile_numbers[number-1],				\
};									\
static struct bin_attribute bin_attr_profile##number##_buttons = {	\
	.attr = { .name = "profile" #number "_buttons", .mode = 0440 },	\
	.size = KONEPLUS_SIZE_PROFILE_BUTTONS,				\
	.read = koneplus_sysfs_read_profilex_buttons,			\
	.private = &profile_numbers[number-1],				\
};
PROFILE_ATTR(1);
PROFILE_ATTR(2);
PROFILE_ATTR(3);
PROFILE_ATTR(4);
PROFILE_ATTR(5);

static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct koneplus_device *koneplus =
			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
	return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
}

static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
		struct device_attribute *attr, char const *buf, size_t size)
{
	struct koneplus_device *koneplus;
	struct usb_device *usb_dev;
	unsigned long profile;
	int retval;
	struct koneplus_roccat_report roccat_report;

	dev = dev->parent->parent;
	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	usb_dev = interface_to_usbdev(to_usb_interface(dev));

	retval = kstrtoul(buf, 10, &profile);
	if (retval)
		return retval;

	if (profile > 4)
		return -EINVAL;

	mutex_lock(&koneplus->koneplus_lock);

	retval = koneplus_set_actual_profile(usb_dev, profile);
	if (retval) {
		mutex_unlock(&koneplus->koneplus_lock);
		return retval;
	}

	koneplus_profile_activated(koneplus, profile);

	roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
	roccat_report.data1 = profile + 1;
	roccat_report.data2 = 0;
	roccat_report.profile = profile + 1;
	roccat_report_event(koneplus->chrdev_minor,
			(uint8_t const *)&roccat_report);

	mutex_unlock(&koneplus->koneplus_lock);

	return size;
}
static DEVICE_ATTR(actual_profile, 0660,
		   koneplus_sysfs_show_actual_profile,
		   koneplus_sysfs_set_actual_profile);
static DEVICE_ATTR(startup_profile, 0660,
		   koneplus_sysfs_show_actual_profile,
		   koneplus_sysfs_set_actual_profile);

static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct koneplus_device *koneplus;
	struct usb_device *usb_dev;
	struct koneplus_info info;

	dev = dev->parent->parent;
	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	usb_dev = interface_to_usbdev(to_usb_interface(dev));

	mutex_lock(&koneplus->koneplus_lock);
	roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
			&info, KONEPLUS_SIZE_INFO);
	mutex_unlock(&koneplus->koneplus_lock);

	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
}
static DEVICE_ATTR(firmware_version, 0440,
		   koneplus_sysfs_show_firmware_version, NULL);

static struct attribute *koneplus_attrs[] = {
	&dev_attr_actual_profile.attr,
	&dev_attr_startup_profile.attr,
	&dev_attr_firmware_version.attr,
	NULL,
};

static struct bin_attribute *koneplus_bin_attributes[] = {
	&bin_attr_control,
	&bin_attr_talk,
	&bin_attr_macro,
	&bin_attr_tcu_image,
	&bin_attr_info,
	&bin_attr_sensor,
	&bin_attr_tcu,
	&bin_attr_profile_settings,
	&bin_attr_profile_buttons,
	&bin_attr_profile1_settings,
	&bin_attr_profile2_settings,
	&bin_attr_profile3_settings,
	&bin_attr_profile4_settings,
	&bin_attr_profile5_settings,
	&bin_attr_profile1_buttons,
	&bin_attr_profile2_buttons,
	&bin_attr_profile3_buttons,
	&bin_attr_profile4_buttons,
	&bin_attr_profile5_buttons,
	NULL,
};

static const struct attribute_group koneplus_group = {
	.attrs = koneplus_attrs,
	.bin_attrs = koneplus_bin_attributes,
};

static const struct attribute_group *koneplus_groups[] = {
	&koneplus_group,
	NULL,
};

static const struct class koneplus_class = {
	.name = "koneplus",
	.dev_groups = koneplus_groups,
};

static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
		struct koneplus_device *koneplus)
{
	int retval;

	mutex_init(&koneplus->koneplus_lock);

	retval = koneplus_get_actual_profile(usb_dev);
	if (retval < 0)
		return retval;
	koneplus_profile_activated(koneplus, retval);

	return 0;
}

static int koneplus_init_specials(struct hid_device *hdev)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct usb_device *usb_dev = interface_to_usbdev(intf);
	struct koneplus_device *koneplus;
	int retval;

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			== USB_INTERFACE_PROTOCOL_MOUSE) {

		koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
		if (!koneplus) {
			hid_err(hdev, "can't alloc device descriptor\n");
			return -ENOMEM;
		}
		hid_set_drvdata(hdev, koneplus);

		retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
		if (retval) {
			hid_err(hdev, "couldn't init struct koneplus_device\n");
			goto exit_free;
		}

		retval = roccat_connect(&koneplus_class, hdev,
					sizeof(struct koneplus_roccat_report));
		if (retval < 0) {
			hid_err(hdev, "couldn't init char dev\n");
		} else {
			koneplus->chrdev_minor = retval;
			koneplus->roccat_claimed = 1;
		}
	} else {
		hid_set_drvdata(hdev, NULL);
	}

	return 0;
exit_free:
	kfree(koneplus);
	return retval;
}

static void koneplus_remove_specials(struct hid_device *hdev)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct koneplus_device *koneplus;

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			== USB_INTERFACE_PROTOCOL_MOUSE) {
		koneplus = hid_get_drvdata(hdev);
		if (koneplus->roccat_claimed)
			roccat_disconnect(koneplus->chrdev_minor);
		kfree(koneplus);
	}
}

static int koneplus_probe(struct hid_device *hdev,
		const struct hid_device_id *id)
{
	int retval;

	if (!hid_is_usb(hdev))
		return -EINVAL;

	retval = hid_parse(hdev);
	if (retval) {
		hid_err(hdev, "parse failed\n");
		goto exit;
	}

	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
	if (retval) {
		hid_err(hdev, "hw start failed\n");
		goto exit;
	}

	retval = koneplus_init_specials(hdev);
	if (retval) {
		hid_err(hdev, "couldn't install mouse\n");
		goto exit_stop;
	}

	return 0;

exit_stop:
	hid_hw_stop(hdev);
exit:
	return retval;
}

static void koneplus_remove(struct hid_device *hdev)
{
	koneplus_remove_specials(hdev);
	hid_hw_stop(hdev);
}

static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
		u8 const *data)
{
	struct koneplus_mouse_report_button const *button_report;

	switch (data[0]) {
	case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
		button_report = (struct koneplus_mouse_report_button const *)data;
		switch (button_report->type) {
		case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
			koneplus_profile_activated(koneplus, button_report->data1 - 1);
			break;
		}
		break;
	}
}

static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
		u8 const *data)
{
	struct koneplus_roccat_report roccat_report;
	struct koneplus_mouse_report_button const *button_report;

	if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
		return;

	button_report = (struct koneplus_mouse_report_button const *)data;

	if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
			button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
			button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
		return;

	roccat_report.type = button_report->type;
	roccat_report.data1 = button_report->data1;
	roccat_report.data2 = button_report->data2;
	roccat_report.profile = koneplus->actual_profile + 1;
	roccat_report_event(koneplus->chrdev_minor,
			(uint8_t const *)&roccat_report);
}

static int koneplus_raw_event(struct hid_device *hdev,
		struct hid_report *report, u8 *data, int size)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct koneplus_device *koneplus = hid_get_drvdata(hdev);

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			!= USB_INTERFACE_PROTOCOL_MOUSE)
		return 0;

	if (koneplus == NULL)
		return 0;

	koneplus_keep_values_up_to_date(koneplus, data);

	if (koneplus->roccat_claimed)
		koneplus_report_to_chrdev(koneplus, data);

	return 0;
}

static const struct hid_device_id koneplus_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
	{ }
};

MODULE_DEVICE_TABLE(hid, koneplus_devices);

static struct hid_driver koneplus_driver = {
		.name = "koneplus",
		.id_table = koneplus_devices,
		.probe = koneplus_probe,
		.remove = koneplus_remove,
		.raw_event = koneplus_raw_event
};

static int __init koneplus_init(void)
{
	int retval;

	/* class name has to be same as driver name */
	retval = class_register(&koneplus_class);
	if (retval)
		return retval;

	retval = hid_register_driver(&koneplus_driver);
	if (retval)
		class_unregister(&koneplus_class);
	return retval;
}

static void __exit koneplus_exit(void)
{
	hid_unregister_driver(&koneplus_driver);
	class_unregister(&koneplus_class);
}

module_init(koneplus_init);
module_exit(koneplus_exit);

MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
47dbdbff SA	2	/*
	3	* Roccat Kone[+] driver for Linux
	4	*
	5	* Copyright (c) 2010 Stefan Achatz <erazor_de@users.sourceforge.net>
	6	*/
	7
	8	/*
47dbdbff SA	9	*/
	10
	11	/*
	12	* Roccat Kone[+] is an updated/improved version of the Kone with more memory
	13	* and functionality and without the non-standard behaviours the Kone had.
8e74a2d3	14	* KoneXTD has same capabilities but updated sensor.
47dbdbff SA	15	*/
	16
	17	#include <linux/device.h>
	18	#include <linux/input.h>
	19	#include <linux/hid.h>
47dbdbff SA	20	#include <linux/module.h>
47dbdbff SA	21	#include <linux/slab.h>
5dc0c983	22	#include <linux/hid-roccat.h>
47dbdbff	23	#include "hid-ids.h"
5772f636	24	#include "hid-roccat-common.h"
47dbdbff SA	25	#include "hid-roccat-koneplus.h"
	26
	27	static uint profile_numbers[5] = {0, 1, 2, 3, 4};
	28
47dbdbff SA	29	static void koneplus_profile_activated(struct koneplus_device *koneplus,
	30	uint new_profile)
	31	{
	32	koneplus->actual_profile = new_profile;
	33	}
	34
	35	static int koneplus_send_control(struct usb_device *usb_dev, uint value,
	36	enum koneplus_control_requests request)
	37	{
7392d73b	38	struct roccat_common2_control control;
47dbdbff SA	39
	40	if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS \|\|
	41	request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
	42	value > 4)
	43	return -EINVAL;
	44
4728f2dc	45	control.command = ROCCAT_COMMON_COMMAND_CONTROL;
5772f636 SA	46	control.value = value;
5772f636 SA	47	control.request = request;
47dbdbff	48
7392d73b	49	return roccat_common2_send_with_status(usb_dev,
4728f2dc	50	ROCCAT_COMMON_COMMAND_CONTROL,
7392d73b	51	&control, sizeof(struct roccat_common2_control));
47dbdbff SA	52	}
47dbdbff SA	53
47dbdbff SA	54
47dbdbff SA	55	/* retval is 0-4 on success, < 0 on error */
b50f315c	56	static int koneplus_get_actual_profile(struct usb_device *usb_dev)
47dbdbff	57	{
b50f315c	58	struct koneplus_actual_profile buf;
47dbdbff SA	59	int retval;
47dbdbff SA	60
7392d73b	61	retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
f114fec5	62	&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
47dbdbff	63
b50f315c	64	return retval ? retval : buf.actual_profile;
47dbdbff SA	65	}
47dbdbff SA	66
b50f315c SA	67	static int koneplus_set_actual_profile(struct usb_device *usb_dev,
b50f315c SA	68	int new_profile)
47dbdbff	69	{
b50f315c	70	struct koneplus_actual_profile buf;
47dbdbff	71
b50f315c	72	buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
f114fec5	73	buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
b50f315c	74	buf.actual_profile = new_profile;
47dbdbff	75
7392d73b	76	return roccat_common2_send_with_status(usb_dev,
4728f2dc	77	KONEPLUS_COMMAND_ACTUAL_PROFILE,
f114fec5	78	&buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
47dbdbff SA	79	}
	80
	81	static ssize_t koneplus_sysfs_read(struct file fp, struct kobject kobj,
	82	char *buf, loff_t off, size_t count,
	83	size_t real_size, uint command)
	84	{
2cf83833	85	struct device *dev = kobj_to_dev(kobj)->parent->parent;
47dbdbff SA	86	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	87	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	88	int retval;
	89
fd82be6c SA	90	if (off >= real_size)
	91	return 0;
	92
47dbdbff SA	93	if (off != 0 \|\| count != real_size)
	94	return -EINVAL;
	95
	96	mutex_lock(&koneplus->koneplus_lock);
7392d73b	97	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
47dbdbff SA	98	mutex_unlock(&koneplus->koneplus_lock);
	99
	100	if (retval)
	101	return retval;
	102
	103	return real_size;
	104	}
	105
	106	static ssize_t koneplus_sysfs_write(struct file fp, struct kobject kobj,
	107	void const *buf, loff_t off, size_t count,
	108	size_t real_size, uint command)
	109	{
2cf83833	110	struct device *dev = kobj_to_dev(kobj)->parent->parent;
47dbdbff SA	111	struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	112	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	113	int retval;
	114
	115	if (off != 0 \|\| count != real_size)
	116	return -EINVAL;
	117
	118	mutex_lock(&koneplus->koneplus_lock);
7392d73b	119	retval = roccat_common2_send_with_status(usb_dev, command,
4728f2dc	120	buf, real_size);
47dbdbff SA	121	mutex_unlock(&koneplus->koneplus_lock);
	122
	123	if (retval)
	124	return retval;
	125
	126	return real_size;
	127	}
	128
f114fec5 SA	129	#define KONEPLUS_SYSFS_W(thingy, THINGY) \
	130	static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
	131	struct kobject kobj, struct bin_attribute attr, char *buf, \
	132	loff_t off, size_t count) \
	133	{ \
	134	return koneplus_sysfs_write(fp, kobj, buf, off, count, \
	135	KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
fabe51eb SA	136	}
fabe51eb SA	137
f114fec5 SA	138	#define KONEPLUS_SYSFS_R(thingy, THINGY) \
	139	static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
	140	struct kobject kobj, struct bin_attribute attr, char *buf, \
	141	loff_t off, size_t count) \
	142	{ \
	143	return koneplus_sysfs_read(fp, kobj, buf, off, count, \
	144	KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
fabe51eb SA	145	}
fabe51eb SA	146
f114fec5 SA	147	#define KONEPLUS_SYSFS_RW(thingy, THINGY) \
	148	KONEPLUS_SYSFS_W(thingy, THINGY) \
	149	KONEPLUS_SYSFS_R(thingy, THINGY)
6d1dec85	150
f114fec5	151	#define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
eb3156e0 GKH	152	KONEPLUS_SYSFS_RW(thingy, THINGY); \
eb3156e0 GKH	153	static struct bin_attribute bin_attr_##thingy = { \
f114fec5 SA	154	.attr = { .name = #thingy, .mode = 0660 }, \
	155	.size = KONEPLUS_SIZE_ ## THINGY, \
	156	.read = koneplus_sysfs_read_ ## thingy, \
	157	.write = koneplus_sysfs_write_ ## thingy \
47dbdbff SA	158	}
47dbdbff SA	159
f114fec5	160	#define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
eb3156e0 GKH	161	KONEPLUS_SYSFS_R(thingy, THINGY); \
eb3156e0 GKH	162	static struct bin_attribute bin_attr_##thingy = { \
f114fec5 SA	163	.attr = { .name = #thingy, .mode = 0440 }, \
	164	.size = KONEPLUS_SIZE_ ## THINGY, \
	165	.read = koneplus_sysfs_read_ ## thingy, \
47dbdbff SA	166	}
47dbdbff SA	167
f114fec5	168	#define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
eb3156e0 GKH	169	KONEPLUS_SYSFS_W(thingy, THINGY); \
eb3156e0 GKH	170	static struct bin_attribute bin_attr_##thingy = { \
f114fec5 SA	171	.attr = { .name = #thingy, .mode = 0220 }, \
	172	.size = KONEPLUS_SIZE_ ## THINGY, \
	173	.write = koneplus_sysfs_write_ ## thingy \
47dbdbff	174	}
eb3156e0 GKH	175	KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL);
	176	KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK);
	177	KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO);
	178	KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE);
	179	KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO);
	180	KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR);
	181	KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU);
	182	KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
	183	KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
47dbdbff SA	184
	185	static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
	186	struct kobject kobj, struct bin_attribute attr, char *buf,
	187	loff_t off, size_t count)
	188	{
2cf83833	189	struct device *dev = kobj_to_dev(kobj)->parent->parent;
47dbdbff	190	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
f114fec5	191	ssize_t retval;
47dbdbff	192
f114fec5 SA	193	retval = koneplus_send_control(usb_dev, (uint )(attr->private),
f114fec5 SA	194	KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
47dbdbff SA	195	if (retval)
	196	return retval;
	197
f114fec5 SA	198	return koneplus_sysfs_read(fp, kobj, buf, off, count,
	199	KONEPLUS_SIZE_PROFILE_SETTINGS,
	200	KONEPLUS_COMMAND_PROFILE_SETTINGS);
47dbdbff SA	201	}
	202
	203	static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
	204	struct kobject kobj, struct bin_attribute attr, char *buf,
	205	loff_t off, size_t count)
	206	{
2cf83833	207	struct device *dev = kobj_to_dev(kobj)->parent->parent;
47dbdbff	208	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
f114fec5	209	ssize_t retval;
47dbdbff	210
f114fec5 SA	211	retval = koneplus_send_control(usb_dev, (uint )(attr->private),
f114fec5 SA	212	KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
47dbdbff SA	213	if (retval)
	214	return retval;
	215
f114fec5 SA	216	return koneplus_sysfs_read(fp, kobj, buf, off, count,
	217	KONEPLUS_SIZE_PROFILE_BUTTONS,
	218	KONEPLUS_COMMAND_PROFILE_BUTTONS);
47dbdbff SA	219	}
47dbdbff SA	220
eb3156e0 GKH	221	#define PROFILE_ATTR(number) \
eb3156e0 GKH	222	static struct bin_attribute bin_attr_profile##number##_settings = { \
550dbf47	223	.attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
eb3156e0 GKH	224	.size = KONEPLUS_SIZE_PROFILE_SETTINGS, \
	225	.read = koneplus_sysfs_read_profilex_settings, \
	226	.private = &profile_numbers[number-1], \
	227	}; \
	228	static struct bin_attribute bin_attr_profile##number##_buttons = { \
550dbf47	229	.attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
eb3156e0 GKH	230	.size = KONEPLUS_SIZE_PROFILE_BUTTONS, \
	231	.read = koneplus_sysfs_read_profilex_buttons, \
	232	.private = &profile_numbers[number-1], \
	233	};
	234	PROFILE_ATTR(1);
	235	PROFILE_ATTR(2);
	236	PROFILE_ATTR(3);
	237	PROFILE_ATTR(4);
	238	PROFILE_ATTR(5);
	239
b50f315c	240	static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
47dbdbff SA	241	struct device_attribute attr, char buf)
	242	{
	243	struct koneplus_device *koneplus =
	244	hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
b50f315c	245	return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
47dbdbff SA	246	}
47dbdbff SA	247
b50f315c	248	static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
47dbdbff SA	249	struct device_attribute attr, char const buf, size_t size)
	250	{
	251	struct koneplus_device *koneplus;
	252	struct usb_device *usb_dev;
	253	unsigned long profile;
	254	int retval;
b50f315c	255	struct koneplus_roccat_report roccat_report;
47dbdbff SA	256
	257	dev = dev->parent->parent;
	258	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	259	usb_dev = interface_to_usbdev(to_usb_interface(dev));
	260
dfc450b5	261	retval = kstrtoul(buf, 10, &profile);
47dbdbff SA	262	if (retval)
	263	return retval;
	264
901e64db SA	265	if (profile > 4)
	266	return -EINVAL;
	267
47dbdbff	268	mutex_lock(&koneplus->koneplus_lock);
b50f315c SA	269
	270	retval = koneplus_set_actual_profile(usb_dev, profile);
	271	if (retval) {
	272	mutex_unlock(&koneplus->koneplus_lock);
47dbdbff	273	return retval;
b50f315c	274	}
47dbdbff	275
901e64db	276	koneplus_profile_activated(koneplus, profile);
47dbdbff	277
b50f315c SA	278	roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
	279	roccat_report.data1 = profile + 1;
	280	roccat_report.data2 = 0;
	281	roccat_report.profile = profile + 1;
	282	roccat_report_event(koneplus->chrdev_minor,
	283	(uint8_t const *)&roccat_report);
	284
	285	mutex_unlock(&koneplus->koneplus_lock);
	286
	287	return size;
47dbdbff	288	}
46a58c44 GKH	289	static DEVICE_ATTR(actual_profile, 0660,
	290	koneplus_sysfs_show_actual_profile,
	291	koneplus_sysfs_set_actual_profile);
	292	static DEVICE_ATTR(startup_profile, 0660,
	293	koneplus_sysfs_show_actual_profile,
	294	koneplus_sysfs_set_actual_profile);
47dbdbff SA	295
	296	static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
	297	struct device_attribute attr, char buf)
	298	{
f114fec5 SA	299	struct koneplus_device *koneplus;
	300	struct usb_device *usb_dev;
	301	struct koneplus_info info;
	302
	303	dev = dev->parent->parent;
	304	koneplus = hid_get_drvdata(dev_get_drvdata(dev));
	305	usb_dev = interface_to_usbdev(to_usb_interface(dev));
	306
	307	mutex_lock(&koneplus->koneplus_lock);
	308	roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
	309	&info, KONEPLUS_SIZE_INFO);
	310	mutex_unlock(&koneplus->koneplus_lock);
	311
	312	return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
47dbdbff	313	}
46a58c44 GKH	314	static DEVICE_ATTR(firmware_version, 0440,
	315	koneplus_sysfs_show_firmware_version, NULL);
	316
	317	static struct attribute *koneplus_attrs[] = {
	318	&dev_attr_actual_profile.attr,
	319	&dev_attr_startup_profile.attr,
	320	&dev_attr_firmware_version.attr,
	321	NULL,
47dbdbff	322	};
eb3156e0 GKH	323
	324	static struct bin_attribute *koneplus_bin_attributes[] = {
	325	&bin_attr_control,
	326	&bin_attr_talk,
	327	&bin_attr_macro,
	328	&bin_attr_tcu_image,
	329	&bin_attr_info,
	330	&bin_attr_sensor,
	331	&bin_attr_tcu,
	332	&bin_attr_profile_settings,
	333	&bin_attr_profile_buttons,
	334	&bin_attr_profile1_settings,
	335	&bin_attr_profile2_settings,
	336	&bin_attr_profile3_settings,
	337	&bin_attr_profile4_settings,
	338	&bin_attr_profile5_settings,
	339	&bin_attr_profile1_buttons,
	340	&bin_attr_profile2_buttons,
	341	&bin_attr_profile3_buttons,
	342	&bin_attr_profile4_buttons,
	343	&bin_attr_profile5_buttons,
	344	NULL,
	345	};
	346
	347	static const struct attribute_group koneplus_group = {
	348	.attrs = koneplus_attrs,
	349	.bin_attrs = koneplus_bin_attributes,
	350	};
	351
	352	static const struct attribute_group *koneplus_groups[] = {
	353	&koneplus_group,
	354	NULL,
47dbdbff SA	355	};
47dbdbff SA	356
afdf5dd3 IO	357	static const struct class koneplus_class = {
	358	.name = "koneplus",
	359	.dev_groups = koneplus_groups,
	360	};
	361
47dbdbff SA	362	static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
	363	struct koneplus_device *koneplus)
	364	{
f114fec5	365	int retval;
47dbdbff SA	366
	367	mutex_init(&koneplus->koneplus_lock);
	368
b50f315c SA	369	retval = koneplus_get_actual_profile(usb_dev);
	370	if (retval < 0)
	371	return retval;
	372	koneplus_profile_activated(koneplus, retval);
47dbdbff SA	373
	374	return 0;
	375	}
	376
	377	static int koneplus_init_specials(struct hid_device *hdev)
	378	{
	379	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	380	struct usb_device *usb_dev = interface_to_usbdev(intf);
	381	struct koneplus_device *koneplus;
	382	int retval;
	383
	384	if (intf->cur_altsetting->desc.bInterfaceProtocol
	385	== USB_INTERFACE_PROTOCOL_MOUSE) {
	386
	387	koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
	388	if (!koneplus) {
a28764ef	389	hid_err(hdev, "can't alloc device descriptor\n");
47dbdbff SA	390	return -ENOMEM;
	391	}
	392	hid_set_drvdata(hdev, koneplus);
	393
	394	retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
	395	if (retval) {
a28764ef	396	hid_err(hdev, "couldn't init struct koneplus_device\n");
47dbdbff SA	397	goto exit_free;
	398	}
	399
afdf5dd3 IO	400	retval = roccat_connect(&koneplus_class, hdev,
afdf5dd3 IO	401	sizeof(struct koneplus_roccat_report));
47dbdbff	402	if (retval < 0) {
a28764ef	403	hid_err(hdev, "couldn't init char dev\n");
47dbdbff SA	404	} else {
	405	koneplus->chrdev_minor = retval;
	406	koneplus->roccat_claimed = 1;
	407	}
	408	} else {
	409	hid_set_drvdata(hdev, NULL);
	410	}
	411
	412	return 0;
	413	exit_free:
	414	kfree(koneplus);
	415	return retval;
	416	}
	417
	418	static void koneplus_remove_specials(struct hid_device *hdev)
	419	{
	420	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	421	struct koneplus_device *koneplus;
	422
	423	if (intf->cur_altsetting->desc.bInterfaceProtocol
	424	== USB_INTERFACE_PROTOCOL_MOUSE) {
	425	koneplus = hid_get_drvdata(hdev);
	426	if (koneplus->roccat_claimed)
	427	roccat_disconnect(koneplus->chrdev_minor);
	428	kfree(koneplus);
	429	}
	430	}
	431
	432	static int koneplus_probe(struct hid_device *hdev,
	433	const struct hid_device_id *id)
	434	{
	435	int retval;
	436
93020953 GKH	437	if (!hid_is_usb(hdev))
	438	return -EINVAL;
	439
47dbdbff SA	440	retval = hid_parse(hdev);
47dbdbff SA	441	if (retval) {
a28764ef	442	hid_err(hdev, "parse failed\n");
47dbdbff SA	443	goto exit;
	444	}
	445
	446	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
	447	if (retval) {
a28764ef	448	hid_err(hdev, "hw start failed\n");
47dbdbff SA	449	goto exit;
	450	}
	451
	452	retval = koneplus_init_specials(hdev);
	453	if (retval) {
a28764ef	454	hid_err(hdev, "couldn't install mouse\n");
47dbdbff SA	455	goto exit_stop;
	456	}
	457
	458	return 0;
	459
	460	exit_stop:
	461	hid_hw_stop(hdev);
	462	exit:
	463	return retval;
	464	}
	465
	466	static void koneplus_remove(struct hid_device *hdev)
	467	{
	468	koneplus_remove_specials(hdev);
	469	hid_hw_stop(hdev);
	470	}
	471
	472	static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
	473	u8 const *data)
	474	{
	475	struct koneplus_mouse_report_button const *button_report;
	476
	477	switch (data[0]) {
	478	case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
	479	button_report = (struct koneplus_mouse_report_button const *)data;
	480	switch (button_report->type) {
	481	case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
	482	koneplus_profile_activated(koneplus, button_report->data1 - 1);
	483	break;
	484	}
	485	break;
	486	}
	487	}
	488
	489	static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
	490	u8 const *data)
	491	{
	492	struct koneplus_roccat_report roccat_report;
	493	struct koneplus_mouse_report_button const *button_report;
	494
	495	if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
	496	return;
	497
	498	button_report = (struct koneplus_mouse_report_button const *)data;
	499
	500	if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH \|\|
	501	button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
	502	button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
	503	return;
	504
	505	roccat_report.type = button_report->type;
	506	roccat_report.data1 = button_report->data1;
	507	roccat_report.data2 = button_report->data2;
	508	roccat_report.profile = koneplus->actual_profile + 1;
	509	roccat_report_event(koneplus->chrdev_minor,
8211e460	510	(uint8_t const *)&roccat_report);
47dbdbff SA	511	}
	512
	513	static int koneplus_raw_event(struct hid_device *hdev,
	514	struct hid_report report, u8 data, int size)
	515	{
	516	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	517	struct koneplus_device *koneplus = hid_get_drvdata(hdev);
	518
	519	if (intf->cur_altsetting->desc.bInterfaceProtocol
	520	!= USB_INTERFACE_PROTOCOL_MOUSE)
	521	return 0;
	522
901e64db SA	523	if (koneplus == NULL)
	524	return 0;
	525
47dbdbff SA	526	koneplus_keep_values_up_to_date(koneplus, data);
	527
	528	if (koneplus->roccat_claimed)
	529	koneplus_report_to_chrdev(koneplus, data);
	530
	531	return 0;
	532	}
	533
	534	static const struct hid_device_id koneplus_devices[] = {
	535	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
8e74a2d3	536	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
47dbdbff SA	537	{ }
	538	};
	539
	540	MODULE_DEVICE_TABLE(hid, koneplus_devices);
	541
	542	static struct hid_driver koneplus_driver = {
	543	.name = "koneplus",
	544	.id_table = koneplus_devices,
	545	.probe = koneplus_probe,
	546	.remove = koneplus_remove,
	547	.raw_event = koneplus_raw_event
	548	};
	549
	550	static int __init koneplus_init(void)
	551	{
	552	int retval;
	553
	554	/* class name has to be same as driver name */
afdf5dd3 IO	555	retval = class_register(&koneplus_class);
	556	if (retval)
	557	return retval;
47dbdbff SA	558
	559	retval = hid_register_driver(&koneplus_driver);
	560	if (retval)
afdf5dd3	561	class_unregister(&koneplus_class);
47dbdbff SA	562	return retval;
	563	}
	564
	565	static void __exit koneplus_exit(void)
	566	{
47dbdbff	567	hid_unregister_driver(&koneplus_driver);
afdf5dd3	568	class_unregister(&koneplus_class);
47dbdbff SA	569	}
	570
	571	module_init(koneplus_init);
	572	module_exit(koneplus_exit);
	573
	574	MODULE_AUTHOR("Stefan Achatz");
8e74a2d3	575	MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
47dbdbff	576	MODULE_LICENSE("GPL v2");