[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / hid / hid-roccat-isku.c

/*
 * Roccat Isku driver for Linux
 *
 * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 */

/*
 * 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 = strict_strtoul(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 struct device_attribute isku_attributes[] = {
	__ATTR(actual_profile, 0660,
			isku_sysfs_show_actual_profile,
			isku_sysfs_set_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 =
			container_of(kobj, struct device, 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 =
			container_of(kobj, struct device, 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) \
{ \
	.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) \
{ \
	.attr = { .name = #thingy, .mode = 0440 }, \
	.size = ISKU_SIZE_ ## THINGY, \
	.read = isku_sysfs_read_ ## thingy, \
}

#define ISKU_BIN_ATTR_W(thingy, THINGY) \
{ \
	.attr = { .name = #thingy, .mode = 0220 }, \
	.size = ISKU_SIZE_ ## THINGY, \
	.write = isku_sysfs_write_ ## thingy \
}

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

static struct bin_attribute isku_bin_attributes[] = {
	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_R(info, INFO),
	ISKU_BIN_ATTR_W(control, CONTROL),
	ISKU_BIN_ATTR_W(reset, RESET),
	__ATTR_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_attrs = isku_attributes;
	isku_class->dev_bin_attrs = isku_bin_attributes;

	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
d41c2a70 SA	1	/*
	2	* Roccat Isku driver for Linux
	3	*
	4	* Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
	5	*/
	6
	7	/*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the Free
	10	* Software Foundation; either version 2 of the License, or (at your option)
	11	* any later version.
	12	*/
	13
	14	/*
	15	* Roccat Isku is a gamer keyboard with macro keys that can be configured in
	16	* 5 profiles.
	17	*/
	18
	19	#include <linux/device.h>
	20	#include <linux/input.h>
	21	#include <linux/hid.h>
	22	#include <linux/module.h>
	23	#include <linux/slab.h>
	24	#include <linux/hid-roccat.h>
	25	#include "hid-ids.h"
	26	#include "hid-roccat-common.h"
	27	#include "hid-roccat-isku.h"
	28
	29	static struct class *isku_class;
	30
	31	static void isku_profile_activated(struct isku_device *isku, uint new_profile)
	32	{
	33	isku->actual_profile = new_profile;
	34	}
	35
	36	static int isku_receive(struct usb_device *usb_dev, uint command,
	37	void *buf, uint size)
	38	{
7392d73b	39	return roccat_common2_receive(usb_dev, command, buf, size);
d41c2a70 SA	40	}
d41c2a70 SA	41
d41c2a70 SA	42	static int isku_get_actual_profile(struct usb_device *usb_dev)
	43	{
	44	struct isku_actual_profile buf;
	45	int retval;
	46
	47	retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
	48	&buf, sizeof(struct isku_actual_profile));
	49	return retval ? retval : buf.actual_profile;
	50	}
	51
	52	static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
	53	{
	54	struct isku_actual_profile buf;
	55
	56	buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
	57	buf.size = sizeof(struct isku_actual_profile);
	58	buf.actual_profile = new_profile;
7392d73b	59	return roccat_common2_send_with_status(usb_dev,
4728f2dc	60	ISKU_COMMAND_ACTUAL_PROFILE, &buf,
d41c2a70 SA	61	sizeof(struct isku_actual_profile));
	62	}
	63
	64	static ssize_t isku_sysfs_show_actual_profile(struct device *dev,
	65	struct device_attribute attr, char buf)
	66	{
	67	struct isku_device *isku =
	68	hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
	69	return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile);
	70	}
	71
	72	static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
	73	struct device_attribute attr, char const buf, size_t size)
	74	{
	75	struct isku_device *isku;
	76	struct usb_device *usb_dev;
	77	unsigned long profile;
	78	int retval;
	79	struct isku_roccat_report roccat_report;
	80
	81	dev = dev->parent->parent;
	82	isku = hid_get_drvdata(dev_get_drvdata(dev));
	83	usb_dev = interface_to_usbdev(to_usb_interface(dev));
	84
	85	retval = strict_strtoul(buf, 10, &profile);
	86	if (retval)
	87	return retval;
	88
	89	if (profile > 4)
	90	return -EINVAL;
	91
	92	mutex_lock(&isku->isku_lock);
	93
	94	retval = isku_set_actual_profile(usb_dev, profile);
	95	if (retval) {
	96	mutex_unlock(&isku->isku_lock);
	97	return retval;
	98	}
	99
	100	isku_profile_activated(isku, profile);
	101
	102	roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
	103	roccat_report.data1 = profile + 1;
	104	roccat_report.data2 = 0;
	105	roccat_report.profile = profile + 1;
	106	roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);
	107
	108	mutex_unlock(&isku->isku_lock);
	109
	110	return size;
	111	}
	112
	113	static struct device_attribute isku_attributes[] = {
	114	__ATTR(actual_profile, 0660,
	115	isku_sysfs_show_actual_profile,
	116	isku_sysfs_set_actual_profile),
	117	__ATTR_NULL
	118	};
	119
	120	static ssize_t isku_sysfs_read(struct file fp, struct kobject kobj,
	121	char *buf, loff_t off, size_t count,
	122	size_t real_size, uint command)
	123	{
	124	struct device *dev =
125	container_of(kobj, struct device, kobj)->parent->parent;
126	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
127	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
128	int retval;
129
130	if (off >= real_size)
131	return 0;
132
ce716965	133	if (off != 0 \|\| count > real_size)
d41c2a70 SA	134	return -EINVAL;
	135
	136	mutex_lock(&isku->isku_lock);
ce716965	137	retval = isku_receive(usb_dev, command, buf, count);
d41c2a70 SA	138	mutex_unlock(&isku->isku_lock);
d41c2a70 SA	139
ce716965	140	return retval ? retval : count;
d41c2a70 SA	141	}
	142
	143	static ssize_t isku_sysfs_write(struct file fp, struct kobject kobj,
	144	void const *buf, loff_t off, size_t count,
	145	size_t real_size, uint command)
	146	{
	147	struct device *dev =
	148	container_of(kobj, struct device, kobj)->parent->parent;
	149	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
	150	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
	151	int retval;
	152
ce716965	153	if (off != 0 \|\| count > real_size)
d41c2a70 SA	154	return -EINVAL;
	155
	156	mutex_lock(&isku->isku_lock);
7392d73b	157	retval = roccat_common2_send_with_status(usb_dev, command,
ce716965	158	(void *)buf, count);
d41c2a70 SA	159	mutex_unlock(&isku->isku_lock);
d41c2a70 SA	160
ce716965	161	return retval ? retval : count;
d41c2a70 SA	162	}
	163
	164	#define ISKU_SYSFS_W(thingy, THINGY) \
	165	static ssize_t isku_sysfs_write_ ## thingy(struct file fp, struct kobject kobj, \
	166	struct bin_attribute attr, char buf, \
	167	loff_t off, size_t count) \
	168	{ \
	169	return isku_sysfs_write(fp, kobj, buf, off, count, \
6e5920dd	170	ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
d41c2a70 SA	171	}
	172
	173	#define ISKU_SYSFS_R(thingy, THINGY) \
	174	static ssize_t isku_sysfs_read_ ## thingy(struct file fp, struct kobject kobj, \
	175	struct bin_attribute attr, char buf, \
	176	loff_t off, size_t count) \
	177	{ \
	178	return isku_sysfs_read(fp, kobj, buf, off, count, \
6e5920dd	179	ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
d41c2a70 SA	180	}
	181
	182	#define ISKU_SYSFS_RW(thingy, THINGY) \
	183	ISKU_SYSFS_R(thingy, THINGY) \
	184	ISKU_SYSFS_W(thingy, THINGY)
	185
6e5920dd	186	#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
d41c2a70 SA	187	{ \
d41c2a70 SA	188	.attr = { .name = #thingy, .mode = 0660 }, \
6e5920dd	189	.size = ISKU_SIZE_ ## THINGY, \
d41c2a70 SA	190	.read = isku_sysfs_read_ ## thingy, \
	191	.write = isku_sysfs_write_ ## thingy \
	192	}
	193
6e5920dd	194	#define ISKU_BIN_ATTR_R(thingy, THINGY) \
d41c2a70 SA	195	{ \
d41c2a70 SA	196	.attr = { .name = #thingy, .mode = 0440 }, \
6e5920dd	197	.size = ISKU_SIZE_ ## THINGY, \
d41c2a70 SA	198	.read = isku_sysfs_read_ ## thingy, \
	199	}
	200
6e5920dd	201	#define ISKU_BIN_ATTR_W(thingy, THINGY) \
d41c2a70 SA	202	{ \
d41c2a70 SA	203	.attr = { .name = #thingy, .mode = 0220 }, \
6e5920dd	204	.size = ISKU_SIZE_ ## THINGY, \
d41c2a70 SA	205	.write = isku_sysfs_write_ ## thingy \
	206	}
	207
	208	ISKU_SYSFS_RW(macro, MACRO)
	209	ISKU_SYSFS_RW(keys_function, KEYS_FUNCTION)
	210	ISKU_SYSFS_RW(keys_easyzone, KEYS_EASYZONE)
	211	ISKU_SYSFS_RW(keys_media, KEYS_MEDIA)
	212	ISKU_SYSFS_RW(keys_thumbster, KEYS_THUMBSTER)
	213	ISKU_SYSFS_RW(keys_macro, KEYS_MACRO)
	214	ISKU_SYSFS_RW(keys_capslock, KEYS_CAPSLOCK)
	215	ISKU_SYSFS_RW(light, LIGHT)
	216	ISKU_SYSFS_RW(key_mask, KEY_MASK)
	217	ISKU_SYSFS_RW(last_set, LAST_SET)
	218	ISKU_SYSFS_W(talk, TALK)
ce716965	219	ISKU_SYSFS_W(talkfx, TALKFX)
d41c2a70 SA	220	ISKU_SYSFS_R(info, INFO)
d41c2a70 SA	221	ISKU_SYSFS_W(control, CONTROL)
f1da71e1	222	ISKU_SYSFS_W(reset, RESET)
d41c2a70 SA	223
d41c2a70 SA	224	static struct bin_attribute isku_bin_attributes[] = {
6e5920dd SA	225	ISKU_BIN_ATTR_RW(macro, MACRO),
	226	ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION),
	227	ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE),
	228	ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA),
	229	ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER),
	230	ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO),
	231	ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK),
	232	ISKU_BIN_ATTR_RW(light, LIGHT),
	233	ISKU_BIN_ATTR_RW(key_mask, KEY_MASK),
	234	ISKU_BIN_ATTR_RW(last_set, LAST_SET),
	235	ISKU_BIN_ATTR_W(talk, TALK),
ce716965	236	ISKU_BIN_ATTR_W(talkfx, TALKFX),
6e5920dd SA	237	ISKU_BIN_ATTR_R(info, INFO),
6e5920dd SA	238	ISKU_BIN_ATTR_W(control, CONTROL),
f1da71e1	239	ISKU_BIN_ATTR_W(reset, RESET),
d41c2a70 SA	240	__ATTR_NULL
	241	};
	242
	243	static int isku_init_isku_device_struct(struct usb_device *usb_dev,
	244	struct isku_device *isku)
	245	{
	246	int retval;
	247
	248	mutex_init(&isku->isku_lock);
	249
	250	retval = isku_get_actual_profile(usb_dev);
	251	if (retval < 0)
	252	return retval;
	253	isku_profile_activated(isku, retval);
	254
	255	return 0;
	256	}
	257
	258	static int isku_init_specials(struct hid_device *hdev)
	259	{
	260	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	261	struct usb_device *usb_dev = interface_to_usbdev(intf);
	262	struct isku_device *isku;
	263	int retval;
	264
	265	if (intf->cur_altsetting->desc.bInterfaceProtocol
	266	!= ISKU_USB_INTERFACE_PROTOCOL) {
	267	hid_set_drvdata(hdev, NULL);
	268	return 0;
	269	}
	270
	271	isku = kzalloc(sizeof(*isku), GFP_KERNEL);
	272	if (!isku) {
	273	hid_err(hdev, "can't alloc device descriptor\n");
	274	return -ENOMEM;
	275	}
	276	hid_set_drvdata(hdev, isku);
	277
	278	retval = isku_init_isku_device_struct(usb_dev, isku);
	279	if (retval) {
	280	hid_err(hdev, "couldn't init struct isku_device\n");
	281	goto exit_free;
	282	}
	283
	284	retval = roccat_connect(isku_class, hdev,
	285	sizeof(struct isku_roccat_report));
	286	if (retval < 0) {
	287	hid_err(hdev, "couldn't init char dev\n");
	288	} else {
	289	isku->chrdev_minor = retval;
	290	isku->roccat_claimed = 1;
	291	}
	292
	293	return 0;
	294	exit_free:
	295	kfree(isku);
	296	return retval;
	297	}
	298
	299	static void isku_remove_specials(struct hid_device *hdev)
	300	{
	301	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
	302	struct isku_device *isku;
	303
304	if (intf->cur_altsetting->desc.bInterfaceProtocol
305	!= ISKU_USB_INTERFACE_PROTOCOL)
306	return;
307
308	isku = hid_get_drvdata(hdev);
309	if (isku->roccat_claimed)
310	roccat_disconnect(isku->chrdev_minor);
311	kfree(isku);
312	}
313
314	static int isku_probe(struct hid_device *hdev,
315	const struct hid_device_id *id)
316	{
317	int retval;
318
319	retval = hid_parse(hdev);
320	if (retval) {
321	hid_err(hdev, "parse failed\n");
322	goto exit;
323	}
324
325	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
326	if (retval) {
327	hid_err(hdev, "hw start failed\n");
328	goto exit;
329	}
330
331	retval = isku_init_specials(hdev);
332	if (retval) {
333	hid_err(hdev, "couldn't install keyboard\n");
334	goto exit_stop;
335	}
336
337	return 0;
338
339	exit_stop:
340	hid_hw_stop(hdev);
341	exit:
342	return retval;
343	}
344
345	static void isku_remove(struct hid_device *hdev)
346	{
347	isku_remove_specials(hdev);
348	hid_hw_stop(hdev);
349	}
350
351	static void isku_keep_values_up_to_date(struct isku_device *isku,
352	u8 const *data)
353	{
354	struct isku_report_button const *button_report;
355
356	switch (data[0]) {
357	case ISKU_REPORT_NUMBER_BUTTON:
358	button_report = (struct isku_report_button const *)data;
359	switch (button_report->event) {
360	case ISKU_REPORT_BUTTON_EVENT_PROFILE:
361	isku_profile_activated(isku, button_report->data1 - 1);
362	break;
363	}
364	break;
365	}
366	}
367
368	static void isku_report_to_chrdev(struct isku_device const *isku,
369	u8 const *data)
370	{
371	struct isku_roccat_report roccat_report;
372	struct isku_report_button const *button_report;
373
374	if (data[0] != ISKU_REPORT_NUMBER_BUTTON)
375	return;
376
377	button_report = (struct isku_report_button const *)data;
378
379	roccat_report.event = button_report->event;
380	roccat_report.data1 = button_report->data1;
381	roccat_report.data2 = button_report->data2;
382	roccat_report.profile = isku->actual_profile + 1;
383	roccat_report_event(isku->chrdev_minor,
384	(uint8_t const *)&roccat_report);
385	}
386
387	static int isku_raw_event(struct hid_device *hdev,
388	struct hid_report report, u8 data, int size)
389	{
390	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
391	struct isku_device *isku = hid_get_drvdata(hdev);
392
393	if (intf->cur_altsetting->desc.bInterfaceProtocol
394	!= ISKU_USB_INTERFACE_PROTOCOL)
395	return 0;
396
397	if (isku == NULL)
398	return 0;
399
400	isku_keep_values_up_to_date(isku, data);
401
402	if (isku->roccat_claimed)
403	isku_report_to_chrdev(isku, data);
404
405	return 0;
406	}
407
408	static const struct hid_device_id isku_devices[] = {
409	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
ce716965	410	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
d41c2a70 SA	411	{ }
	412	};
	413
	414	MODULE_DEVICE_TABLE(hid, isku_devices);
	415
	416	static struct hid_driver isku_driver = {
	417	.name = "isku",
	418	.id_table = isku_devices,
	419	.probe = isku_probe,
	420	.remove = isku_remove,
	421	.raw_event = isku_raw_event
	422	};
	423
	424	static int __init isku_init(void)
	425	{
	426	int retval;
	427	isku_class = class_create(THIS_MODULE, "isku");
	428	if (IS_ERR(isku_class))
	429	return PTR_ERR(isku_class);
	430	isku_class->dev_attrs = isku_attributes;
	431	isku_class->dev_bin_attrs = isku_bin_attributes;
	432
	433	retval = hid_register_driver(&isku_driver);
	434	if (retval)
	435	class_destroy(isku_class);
	436	return retval;
	437	}
	438
	439	static void __exit isku_exit(void)
	440	{
	441	hid_unregister_driver(&isku_driver);
	442	class_destroy(isku_class);
	443	}
	444
	445	module_init(isku_init);
	446	module_exit(isku_exit);
	447
	448	MODULE_AUTHOR("Stefan Achatz");
ce716965	449	MODULE_DESCRIPTION("USB Roccat Isku/FX driver");
d41c2a70	450	MODULE_LICENSE("GPL v2");