[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 struct class *isku_class;

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 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;

	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;
	isku_class = class_create(THIS_MODULE, "isku");
	if (IS_ERR(isku_class))
		return PTR_ERR(isku_class);
	isku_class->dev_groups = isku_groups;

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

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