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

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Roccat Isku driver for Linux
 *
 * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
 */

/*
 */

/*
 * Roccat Isku is a gamer keyboard with macro keys that can be configured in
 * 5 profiles.
 */

#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-isku.h"

static void isku_profile_activated(struct isku_device *isku, uint new_profile)
{
	isku->actual_profile = new_profile;
}

static int isku_receive(struct usb_device *usb_dev, uint command,
		void *buf, uint size)
{
	return roccat_common2_receive(usb_dev, command, buf, size);
}

static int isku_get_actual_profile(struct usb_device *usb_dev)
{
	struct isku_actual_profile buf;
	int retval;

	retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
			&buf, sizeof(struct isku_actual_profile));
	return retval ? retval : buf.actual_profile;
}

static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
{
	struct isku_actual_profile buf;

	buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
	buf.size = sizeof(struct isku_actual_profile);
	buf.actual_profile = new_profile;
	return roccat_common2_send_with_status(usb_dev,
			ISKU_COMMAND_ACTUAL_PROFILE, &buf,
			sizeof(struct isku_actual_profile));
}

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

static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
		struct device_attribute *attr, char const *buf, size_t size)
{
	struct isku_device *isku;
	struct usb_device *usb_dev;
	unsigned long profile;
	int retval;
	struct isku_roccat_report roccat_report;

	dev = dev->parent->parent;
	isku = 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(&isku->isku_lock);

	retval = isku_set_actual_profile(usb_dev, profile);
	if (retval) {
		mutex_unlock(&isku->isku_lock);
		return retval;
	}

	isku_profile_activated(isku, profile);

	roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
	roccat_report.data1 = profile + 1;
	roccat_report.data2 = 0;
	roccat_report.profile = profile + 1;
	roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);

	mutex_unlock(&isku->isku_lock);

	return size;
}
static DEVICE_ATTR(actual_profile, 0660, isku_sysfs_show_actual_profile,
		   isku_sysfs_set_actual_profile);

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

static ssize_t isku_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 isku_device *isku = 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(&isku->isku_lock);
	retval = isku_receive(usb_dev, command, buf, count);
	mutex_unlock(&isku->isku_lock);

	return retval ? retval : count;
}

static ssize_t isku_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 isku_device *isku = 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(&isku->isku_lock);
	retval = roccat_common2_send_with_status(usb_dev, command,
			(void *)buf, count);
	mutex_unlock(&isku->isku_lock);

	return retval ? retval : count;
}

#define ISKU_SYSFS_W(thingy, THINGY) \
static ssize_t isku_sysfs_write_ ## thingy(struct file *fp, struct kobject *kobj, \
		struct bin_attribute *attr, char *buf, \
		loff_t off, size_t count) \
{ \
	return isku_sysfs_write(fp, kobj, buf, off, count, \
			ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
}

#define ISKU_SYSFS_R(thingy, THINGY) \
static ssize_t isku_sysfs_read_ ## thingy(struct file *fp, struct kobject *kobj, \
		struct bin_attribute *attr, char *buf, \
		loff_t off, size_t count) \
{ \
	return isku_sysfs_read(fp, kobj, buf, off, count, \
			ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
}

#define ISKU_SYSFS_RW(thingy, THINGY) \
ISKU_SYSFS_R(thingy, THINGY) \
ISKU_SYSFS_W(thingy, THINGY)

#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
ISKU_SYSFS_RW(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
	.attr = { .name = #thingy, .mode = 0660 }, \
	.size = ISKU_SIZE_ ## THINGY, \
	.read = isku_sysfs_read_ ## thingy, \
	.write = isku_sysfs_write_ ## thingy \
}

#define ISKU_BIN_ATTR_R(thingy, THINGY) \
ISKU_SYSFS_R(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
	.attr = { .name = #thingy, .mode = 0440 }, \
	.size = ISKU_SIZE_ ## THINGY, \
	.read = isku_sysfs_read_ ## thingy, \
}

#define ISKU_BIN_ATTR_W(thingy, THINGY) \
ISKU_SYSFS_W(thingy, THINGY); \
static struct bin_attribute bin_attr_##thingy = { \
	.attr = { .name = #thingy, .mode = 0220 }, \
	.size = ISKU_SIZE_ ## THINGY, \
	.write = isku_sysfs_write_ ## thingy \
}

ISKU_BIN_ATTR_RW(macro, MACRO);
ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION);
ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE);
ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA);
ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER);
ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO);
ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK);
ISKU_BIN_ATTR_RW(light, LIGHT);
ISKU_BIN_ATTR_RW(key_mask, KEY_MASK);
ISKU_BIN_ATTR_RW(last_set, LAST_SET);
ISKU_BIN_ATTR_W(talk, TALK);
ISKU_BIN_ATTR_W(talkfx, TALKFX);
ISKU_BIN_ATTR_W(control, CONTROL);
ISKU_BIN_ATTR_W(reset, RESET);
ISKU_BIN_ATTR_R(info, INFO);

static struct bin_attribute *isku_bin_attributes[] = {
	&bin_attr_macro,
	&bin_attr_keys_function,
	&bin_attr_keys_easyzone,
	&bin_attr_keys_media,
	&bin_attr_keys_thumbster,
	&bin_attr_keys_macro,
	&bin_attr_keys_capslock,
	&bin_attr_light,
	&bin_attr_key_mask,
	&bin_attr_last_set,
	&bin_attr_talk,
	&bin_attr_talkfx,
	&bin_attr_control,
	&bin_attr_reset,
	&bin_attr_info,
	NULL,
};

static const struct attribute_group isku_group = {
	.attrs = isku_attrs,
	.bin_attrs = isku_bin_attributes,
};

static const struct attribute_group *isku_groups[] = {
	&isku_group,
	NULL,
};

static const struct class isku_class = {
	.name = "isku",
	.dev_groups = isku_groups,
};

static int isku_init_isku_device_struct(struct usb_device *usb_dev,
		struct isku_device *isku)
{
	int retval;

	mutex_init(&isku->isku_lock);

	retval = isku_get_actual_profile(usb_dev);
	if (retval < 0)
		return retval;
	isku_profile_activated(isku, retval);

	return 0;
}

static int isku_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 isku_device *isku;
	int retval;

	if (intf->cur_altsetting->desc.bInterfaceProtocol
			!= ISKU_USB_INTERFACE_PROTOCOL) {
		hid_set_drvdata(hdev, NULL);
		return 0;
	}

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

	retval = isku_init_isku_device_struct(usb_dev, isku);
	if (retval) {
		hid_err(hdev, "couldn't init struct isku_device\n");
		goto exit_free;
	}

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

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

static void isku_remove_specials(struct hid_device *hdev)
{
	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	struct isku_device *isku;

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

	isku = hid_get_drvdata(hdev);
	if (isku->roccat_claimed)
		roccat_disconnect(isku->chrdev_minor);
	kfree(isku);
}

static int isku_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 = isku_init_specials(hdev);
	if (retval) {
		hid_err(hdev, "couldn't install keyboard\n");
		goto exit_stop;
	}

	return 0;

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

static void isku_remove(struct hid_device *hdev)
{
	isku_remove_specials(hdev);
	hid_hw_stop(hdev);
}

static void isku_keep_values_up_to_date(struct isku_device *isku,
		u8 const *data)
{
	struct isku_report_button const *button_report;

	switch (data[0]) {
	case ISKU_REPORT_NUMBER_BUTTON:
		button_report = (struct isku_report_button const *)data;
		switch (button_report->event) {
		case ISKU_REPORT_BUTTON_EVENT_PROFILE:
			isku_profile_activated(isku, button_report->data1 - 1);
			break;
		}
		break;
	}
}

static void isku_report_to_chrdev(struct isku_device const *isku,
		u8 const *data)
{
	struct isku_roccat_report roccat_report;
	struct isku_report_button const *button_report;

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

	button_report = (struct isku_report_button const *)data;

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

static int isku_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 isku_device *isku = hid_get_drvdata(hdev);

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

	if (isku == NULL)
		return 0;

	isku_keep_values_up_to_date(isku, data);

	if (isku->roccat_claimed)
		isku_report_to_chrdev(isku, data);

	return 0;
}

static const struct hid_device_id isku_devices[] = {
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
	{ }
};

MODULE_DEVICE_TABLE(hid, isku_devices);

static struct hid_driver isku_driver = {
		.name = "isku",
		.id_table = isku_devices,
		.probe = isku_probe,
		.remove = isku_remove,
		.raw_event = isku_raw_event
};

static int __init isku_init(void)
{
	int retval;

	retval = class_register(&isku_class);
	if (retval)
		return retval;

	retval = hid_register_driver(&isku_driver);
	if (retval)
		class_unregister(&isku_class);
	return retval;
}

static void __exit isku_exit(void)
{
	hid_unregister_driver(&isku_driver);
	class_unregister(&isku_class);
}

module_init(isku_init);
module_exit(isku_exit);

MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Isku/FX driver");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
2874c5fd	1	// SPDX-License-Identifier: GPL-2.0-or-later
d41c2a70 SA	2	/*
	3	* Roccat Isku driver for Linux
	4	*
	5	* Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
	6	*/
	7
	8	/*
d41c2a70 SA	9	*/
	10
	11	/*
	12	* Roccat Isku is a gamer keyboard with macro keys that can be configured in
	13	* 5 profiles.
	14	*/
	15
	16	#include <linux/device.h>
	17	#include <linux/input.h>
	18	#include <linux/hid.h>
	19	#include <linux/module.h>
	20	#include <linux/slab.h>
	21	#include <linux/hid-roccat.h>
	22	#include "hid-ids.h"
	23	#include "hid-roccat-common.h"
	24	#include "hid-roccat-isku.h"
	25
d41c2a70 SA	26	static void isku_profile_activated(struct isku_device *isku, uint new_profile)
	27	{
	28	isku->actual_profile = new_profile;
	29	}
	30
	31	static int isku_receive(struct usb_device *usb_dev, uint command,
	32	void *buf, uint size)
	33	{
7392d73b	34	return roccat_common2_receive(usb_dev, command, buf, size);
d41c2a70 SA	35	}
d41c2a70 SA	36
d41c2a70 SA	37	static int isku_get_actual_profile(struct usb_device *usb_dev)
	38	{
	39	struct isku_actual_profile buf;
	40	int retval;
	41
	42	retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
	43	&buf, sizeof(struct isku_actual_profile));
	44	return retval ? retval : buf.actual_profile;
	45	}
	46
	47	static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
	48	{
	49	struct isku_actual_profile buf;
	50
	51	buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
	52	buf.size = sizeof(struct isku_actual_profile);
	53	buf.actual_profile = new_profile;
7392d73b	54	return roccat_common2_send_with_status(usb_dev,
4728f2dc	55	ISKU_COMMAND_ACTUAL_PROFILE, &buf,
d41c2a70 SA	56	sizeof(struct isku_actual_profile));
	57	}
	58
	59	static ssize_t isku_sysfs_show_actual_profile(struct device *dev,
	60	struct device_attribute attr, char buf)
	61	{
	62	struct isku_device *isku =
	63	hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
	64	return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile);
	65	}
	66
	67	static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
	68	struct device_attribute attr, char const buf, size_t size)
	69	{
	70	struct isku_device *isku;
	71	struct usb_device *usb_dev;
	72	unsigned long profile;
	73	int retval;
	74	struct isku_roccat_report roccat_report;
	75
	76	dev = dev->parent->parent;
	77	isku = hid_get_drvdata(dev_get_drvdata(dev));
	78	usb_dev = interface_to_usbdev(to_usb_interface(dev));
	79
dfc450b5	80	retval = kstrtoul(buf, 10, &profile);
d41c2a70 SA	81	if (retval)
	82	return retval;
	83
	84	if (profile > 4)
	85	return -EINVAL;
	86
	87	mutex_lock(&isku->isku_lock);
	88
	89	retval = isku_set_actual_profile(usb_dev, profile);
	90	if (retval) {
	91	mutex_unlock(&isku->isku_lock);
	92	return retval;
	93	}
	94
	95	isku_profile_activated(isku, profile);
	96
	97	roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
	98	roccat_report.data1 = profile + 1;
	99	roccat_report.data2 = 0;
	100	roccat_report.profile = profile + 1;
	101	roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);
	102
	103	mutex_unlock(&isku->isku_lock);
	104
	105	return size;
	106	}
46a58c44 GKH	107	static DEVICE_ATTR(actual_profile, 0660, isku_sysfs_show_actual_profile,
46a58c44 GKH	108	isku_sysfs_set_actual_profile);
d41c2a70	109
46a58c44 GKH	110	static struct attribute *isku_attrs[] = {
	111	&dev_attr_actual_profile.attr,
	112	NULL,
d41c2a70 SA	113	};
	114
	115	static ssize_t isku_sysfs_read(struct file fp, struct kobject kobj,
	116	char *buf, loff_t off, size_t count,
	117	size_t real_size, uint command)
	118	{
2cf83833	119	struct device *dev = kobj_to_dev(kobj)->parent->parent;
d41c2a70 SA	120	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
	121	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	122	int retval;
	123
	124	if (off >= real_size)
	125	return 0;
	126
ce716965	127	if (off != 0 \|\| count > real_size)
d41c2a70 SA	128	return -EINVAL;
	129
	130	mutex_lock(&isku->isku_lock);
ce716965	131	retval = isku_receive(usb_dev, command, buf, count);
d41c2a70 SA	132	mutex_unlock(&isku->isku_lock);
d41c2a70 SA	133
ce716965	134	return retval ? retval : count;
d41c2a70 SA	135	}
	136
	137	static ssize_t isku_sysfs_write(struct file fp, struct kobject kobj,
	138	void const *buf, loff_t off, size_t count,
	139	size_t real_size, uint command)
	140	{
2cf83833	141	struct device *dev = kobj_to_dev(kobj)->parent->parent;
d41c2a70 SA	142	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
	143	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	144	int retval;
	145
ce716965	146	if (off != 0 \|\| count > real_size)
d41c2a70 SA	147	return -EINVAL;
	148
	149	mutex_lock(&isku->isku_lock);
7392d73b	150	retval = roccat_common2_send_with_status(usb_dev, command,
ce716965	151	(void *)buf, count);
d41c2a70 SA	152	mutex_unlock(&isku->isku_lock);
d41c2a70 SA	153
ce716965	154	return retval ? retval : count;
d41c2a70 SA	155	}
	156
	157	#define ISKU_SYSFS_W(thingy, THINGY) \
	158	static ssize_t isku_sysfs_write_ ## thingy(struct file fp, struct kobject kobj, \
	159	struct bin_attribute attr, char buf, \
	160	loff_t off, size_t count) \
	161	{ \
	162	return isku_sysfs_write(fp, kobj, buf, off, count, \
6e5920dd	163	ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
d41c2a70 SA	164	}
	165
	166	#define ISKU_SYSFS_R(thingy, THINGY) \
	167	static ssize_t isku_sysfs_read_ ## thingy(struct file fp, struct kobject kobj, \
	168	struct bin_attribute attr, char buf, \
	169	loff_t off, size_t count) \
	170	{ \
	171	return isku_sysfs_read(fp, kobj, buf, off, count, \
6e5920dd	172	ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
d41c2a70 SA	173	}
	174
	175	#define ISKU_SYSFS_RW(thingy, THINGY) \
	176	ISKU_SYSFS_R(thingy, THINGY) \
	177	ISKU_SYSFS_W(thingy, THINGY)
	178
6e5920dd	179	#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
8daf8c3a GKH	180	ISKU_SYSFS_RW(thingy, THINGY); \
8daf8c3a GKH	181	static struct bin_attribute bin_attr_##thingy = { \
d41c2a70	182	.attr = { .name = #thingy, .mode = 0660 }, \
6e5920dd	183	.size = ISKU_SIZE_ ## THINGY, \
d41c2a70 SA	184	.read = isku_sysfs_read_ ## thingy, \
	185	.write = isku_sysfs_write_ ## thingy \
	186	}
	187
6e5920dd	188	#define ISKU_BIN_ATTR_R(thingy, THINGY) \
8daf8c3a GKH	189	ISKU_SYSFS_R(thingy, THINGY); \
8daf8c3a GKH	190	static struct bin_attribute bin_attr_##thingy = { \
d41c2a70	191	.attr = { .name = #thingy, .mode = 0440 }, \
6e5920dd	192	.size = ISKU_SIZE_ ## THINGY, \
d41c2a70 SA	193	.read = isku_sysfs_read_ ## thingy, \
	194	}
	195
6e5920dd	196	#define ISKU_BIN_ATTR_W(thingy, THINGY) \
8daf8c3a GKH	197	ISKU_SYSFS_W(thingy, THINGY); \
8daf8c3a GKH	198	static struct bin_attribute bin_attr_##thingy = { \
d41c2a70	199	.attr = { .name = #thingy, .mode = 0220 }, \
6e5920dd	200	.size = ISKU_SIZE_ ## THINGY, \
d41c2a70 SA	201	.write = isku_sysfs_write_ ## thingy \
	202	}
	203
8daf8c3a GKH	204	ISKU_BIN_ATTR_RW(macro, MACRO);
	205	ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION);
	206	ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE);
	207	ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA);
	208	ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER);
	209	ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO);
	210	ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK);
	211	ISKU_BIN_ATTR_RW(light, LIGHT);
	212	ISKU_BIN_ATTR_RW(key_mask, KEY_MASK);
	213	ISKU_BIN_ATTR_RW(last_set, LAST_SET);
	214	ISKU_BIN_ATTR_W(talk, TALK);
	215	ISKU_BIN_ATTR_W(talkfx, TALKFX);
	216	ISKU_BIN_ATTR_W(control, CONTROL);
	217	ISKU_BIN_ATTR_W(reset, RESET);
	218	ISKU_BIN_ATTR_R(info, INFO);
	219
	220	static struct bin_attribute *isku_bin_attributes[] = {
	221	&bin_attr_macro,
	222	&bin_attr_keys_function,
	223	&bin_attr_keys_easyzone,
	224	&bin_attr_keys_media,
	225	&bin_attr_keys_thumbster,
	226	&bin_attr_keys_macro,
	227	&bin_attr_keys_capslock,
	228	&bin_attr_light,
	229	&bin_attr_key_mask,
	230	&bin_attr_last_set,
	231	&bin_attr_talk,
	232	&bin_attr_talkfx,
	233	&bin_attr_control,
	234	&bin_attr_reset,
	235	&bin_attr_info,
	236	NULL,
	237	};
	238
	239	static const struct attribute_group isku_group = {
	240	.attrs = isku_attrs,
	241	.bin_attrs = isku_bin_attributes,
	242	};
	243
	244	static const struct attribute_group *isku_groups[] = {
	245	&isku_group,
	246	NULL,
d41c2a70 SA	247	};
d41c2a70 SA	248
afdf5dd3 IO	249	static const struct class isku_class = {
	250	.name = "isku",
	251	.dev_groups = isku_groups,
	252	};
	253
d41c2a70 SA	254	static int isku_init_isku_device_struct(struct usb_device *usb_dev,
	255	struct isku_device *isku)
	256	{
	257	int retval;
	258
	259	mutex_init(&isku->isku_lock);
	260
	261	retval = isku_get_actual_profile(usb_dev);
	262	if (retval < 0)
	263	return retval;
	264	isku_profile_activated(isku, retval);
	265
	266	return 0;
	267	}
	268
	269	static int isku_init_specials(struct hid_device *hdev)
	270	{
	271	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	272	struct usb_device *usb_dev = interface_to_usbdev(intf);
	273	struct isku_device *isku;
	274	int retval;
	275
	276	if (intf->cur_altsetting->desc.bInterfaceProtocol
	277	!= ISKU_USB_INTERFACE_PROTOCOL) {
	278	hid_set_drvdata(hdev, NULL);
	279	return 0;
	280	}
	281
	282	isku = kzalloc(sizeof(*isku), GFP_KERNEL);
	283	if (!isku) {
	284	hid_err(hdev, "can't alloc device descriptor\n");
	285	return -ENOMEM;
	286	}
	287	hid_set_drvdata(hdev, isku);
	288
	289	retval = isku_init_isku_device_struct(usb_dev, isku);
	290	if (retval) {
	291	hid_err(hdev, "couldn't init struct isku_device\n");
	292	goto exit_free;
	293	}
	294
afdf5dd3	295	retval = roccat_connect(&isku_class, hdev,
d41c2a70 SA	296	sizeof(struct isku_roccat_report));
	297	if (retval < 0) {
	298	hid_err(hdev, "couldn't init char dev\n");
	299	} else {
	300	isku->chrdev_minor = retval;
	301	isku->roccat_claimed = 1;
	302	}
	303
	304	return 0;
	305	exit_free:
	306	kfree(isku);
	307	return retval;
	308	}
	309
	310	static void isku_remove_specials(struct hid_device *hdev)
	311	{
	312	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	313	struct isku_device *isku;
	314
	315	if (intf->cur_altsetting->desc.bInterfaceProtocol
	316	!= ISKU_USB_INTERFACE_PROTOCOL)
	317	return;
	318
	319	isku = hid_get_drvdata(hdev);
	320	if (isku->roccat_claimed)
	321	roccat_disconnect(isku->chrdev_minor);
	322	kfree(isku);
	323	}
	324
	325	static int isku_probe(struct hid_device *hdev,
	326	const struct hid_device_id *id)
	327	{
	328	int retval;
	329
93020953 GKH	330	if (!hid_is_usb(hdev))
	331	return -EINVAL;
	332
d41c2a70 SA	333	retval = hid_parse(hdev);
	334	if (retval) {
	335	hid_err(hdev, "parse failed\n");
	336	goto exit;
	337	}
	338
	339	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
	340	if (retval) {
	341	hid_err(hdev, "hw start failed\n");
	342	goto exit;
	343	}
	344
	345	retval = isku_init_specials(hdev);
	346	if (retval) {
	347	hid_err(hdev, "couldn't install keyboard\n");
	348	goto exit_stop;
	349	}
	350
	351	return 0;
	352
	353	exit_stop:
	354	hid_hw_stop(hdev);
	355	exit:
	356	return retval;
	357	}
	358
	359	static void isku_remove(struct hid_device *hdev)
	360	{
	361	isku_remove_specials(hdev);
	362	hid_hw_stop(hdev);
	363	}
	364
	365	static void isku_keep_values_up_to_date(struct isku_device *isku,
	366	u8 const *data)
	367	{
	368	struct isku_report_button const *button_report;
	369
	370	switch (data[0]) {
	371	case ISKU_REPORT_NUMBER_BUTTON:
	372	button_report = (struct isku_report_button const *)data;
	373	switch (button_report->event) {
	374	case ISKU_REPORT_BUTTON_EVENT_PROFILE:
	375	isku_profile_activated(isku, button_report->data1 - 1);
	376	break;
	377	}
	378	break;
	379	}
	380	}
	381
	382	static void isku_report_to_chrdev(struct isku_device const *isku,
	383	u8 const *data)
	384	{
	385	struct isku_roccat_report roccat_report;
	386	struct isku_report_button const *button_report;
	387
	388	if (data[0] != ISKU_REPORT_NUMBER_BUTTON)
	389	return;
	390
	391	button_report = (struct isku_report_button const *)data;
	392
	393	roccat_report.event = button_report->event;
	394	roccat_report.data1 = button_report->data1;
	395	roccat_report.data2 = button_report->data2;
	396	roccat_report.profile = isku->actual_profile + 1;
397	roccat_report_event(isku->chrdev_minor,
398	(uint8_t const *)&roccat_report);
399	}
400
401	static int isku_raw_event(struct hid_device *hdev,
402	struct hid_report report, u8 data, int size)
403	{
404	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
405	struct isku_device *isku = hid_get_drvdata(hdev);
406
407	if (intf->cur_altsetting->desc.bInterfaceProtocol
408	!= ISKU_USB_INTERFACE_PROTOCOL)
409	return 0;
410
411	if (isku == NULL)
412	return 0;
413
414	isku_keep_values_up_to_date(isku, data);
415
416	if (isku->roccat_claimed)
417	isku_report_to_chrdev(isku, data);
418
419	return 0;
420	}
421
422	static const struct hid_device_id isku_devices[] = {
423	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
ce716965	424	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
d41c2a70 SA	425	{ }
	426	};
	427
	428	MODULE_DEVICE_TABLE(hid, isku_devices);
	429
	430	static struct hid_driver isku_driver = {
	431	.name = "isku",
	432	.id_table = isku_devices,
	433	.probe = isku_probe,
	434	.remove = isku_remove,
	435	.raw_event = isku_raw_event
	436	};
	437
	438	static int __init isku_init(void)
	439	{
	440	int retval;
afdf5dd3 IO	441
	442	retval = class_register(&isku_class);
	443	if (retval)
	444	return retval;
d41c2a70 SA	445
	446	retval = hid_register_driver(&isku_driver);
	447	if (retval)
afdf5dd3	448	class_unregister(&isku_class);
d41c2a70 SA	449	return retval;
	450	}
	451
	452	static void __exit isku_exit(void)
	453	{
	454	hid_unregister_driver(&isku_driver);
afdf5dd3	455	class_unregister(&isku_class);
d41c2a70 SA	456	}
	457
	458	module_init(isku_init);
	459	module_exit(isku_exit);
	460
	461	MODULE_AUTHOR("Stefan Achatz");
ce716965	462	MODULE_DESCRIPTION("USB Roccat Isku/FX driver");
d41c2a70	463	MODULE_LICENSE("GPL v2");