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HID: roccat: add support for Roccat Lua 

This patch adds support for Roccat Lua gaming mouse.

Userland tools can soon be found at http://sourceforge.net/projects/roccat

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Stefan Achatz 2012-10-16 17:40:09 +02:00 committed by Jiri Kosina
parent def7cb8cd4
commit 4424f616e4
6 changed files with 267 additions and 2 deletions
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7
Documentation/ABI/testing/sysfs-driver-hid-roccat-lua Normal file
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@ -0,0 +1,7 @@
What: /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/control
Date: October 2012
Contact: Stefan Achatz <erazor_de@users.sourceforge.net>
Description: When written, cpi, button and light settings can be configured.
When read, actual cpi setting and sensor data are returned.
The data has to be 8 bytes long.
Users: http://roccat.sourceforge.net

4
drivers/hid/Makefile
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@ -93,8 +93,8 @@ obj-$(CONFIG_HID_PRIMAX) += hid-primax.o
obj-$(CONFIG_HID_PS3REMOTE) += hid-ps3remote.o
obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \
hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
hid-roccat-koneplus.o hid-roccat-kovaplus.o hid-roccat-pyra.o \
hid-roccat-savu.o
hid-roccat-koneplus.o hid-roccat-kovaplus.o hid-roccat-lua.o \
hid-roccat-pyra.o hid-roccat-savu.o
obj-$(CONFIG_HID_SAITEK) += hid-saitek.o
obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o

1
drivers/hid/hid-core.c
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@ -1655,6 +1655,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },

1
drivers/hid/hid-ids.h
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@ -675,6 +675,7 @@
#define USB_DEVICE_ID_ROCCAT_KONE 0x2ced
#define USB_DEVICE_ID_ROCCAT_KONEPLUS 0x2d51
#define USB_DEVICE_ID_ROCCAT_KOVAPLUS 0x2d50
#define USB_DEVICE_ID_ROCCAT_LUA 0x2c2e
#define USB_DEVICE_ID_ROCCAT_PYRA_WIRED 0x2c24
#define USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS 0x2cf6
#define USB_DEVICE_ID_ROCCAT_SAVU 0x2d5a

227
drivers/hid/hid-roccat-lua.c Normal file
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@ -0,0 +1,227 @@
/*
* Roccat Lua driver for Linux
*
* Copyright (c) 2012 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 Lua is a gamer mouse which cpi, button and light settings can be
* configured.
*/
#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-lua.h"
static ssize_t lua_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);
struct lua_device *lua = 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(&lua->lua_lock);
retval = roccat_common2_receive(usb_dev, command, buf, real_size);
mutex_unlock(&lua->lua_lock);
return retval ? retval : real_size;
}
static ssize_t lua_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);
struct lua_device *lua = 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(&lua->lua_lock);
retval = roccat_common2_send(usb_dev, command, (void *)buf, real_size);
mutex_unlock(&lua->lua_lock);
return retval ? retval : real_size;
}
#define LUA_SYSFS_W(thingy, THINGY) \
static ssize_t lua_sysfs_write_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, \
char *buf, loff_t off, size_t count) \
{ \
return lua_sysfs_write(fp, kobj, buf, off, count, \
LUA_SIZE_ ## THINGY, LUA_COMMAND_ ## THINGY); \
}
#define LUA_SYSFS_R(thingy, THINGY) \
static ssize_t lua_sysfs_read_ ## thingy(struct file *fp, \
struct kobject *kobj, struct bin_attribute *attr, \
char *buf, loff_t off, size_t count) \
{ \
return lua_sysfs_read(fp, kobj, buf, off, count, \
LUA_SIZE_ ## THINGY, LUA_COMMAND_ ## THINGY); \
}
#define LUA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
LUA_SYSFS_W(thingy, THINGY) \
LUA_SYSFS_R(thingy, THINGY) \
static struct bin_attribute lua_ ## thingy ## _attr = { \
.attr = { .name = #thingy, .mode = 0660 }, \
.size = LUA_SIZE_ ## THINGY, \
.read = lua_sysfs_read_ ## thingy, \
.write = lua_sysfs_write_ ## thingy \
};
LUA_BIN_ATTRIBUTE_RW(control, CONTROL)
static int lua_create_sysfs_attributes(struct usb_interface *intf)
{
return sysfs_create_bin_file(&intf->dev.kobj, &lua_control_attr);
}
static void lua_remove_sysfs_attributes(struct usb_interface *intf)
{
sysfs_remove_bin_file(&intf->dev.kobj, &lua_control_attr);
}
static int lua_init_lua_device_struct(struct usb_device *usb_dev,
struct lua_device *lua)
{
mutex_init(&lua->lua_lock);
return 0;
}
static int lua_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 lua_device *lua;
int retval;
lua = kzalloc(sizeof(*lua), GFP_KERNEL);
if (!lua) {
hid_err(hdev, "can't alloc device descriptor\n");
return -ENOMEM;
}
hid_set_drvdata(hdev, lua);
retval = lua_init_lua_device_struct(usb_dev, lua);
if (retval) {
hid_err(hdev, "couldn't init struct lua_device\n");
goto exit;
}
retval = lua_create_sysfs_attributes(intf);
if (retval) {
hid_err(hdev, "cannot create sysfs files\n");
goto exit;
}
return 0;
exit:
kfree(lua);
return retval;
}
static void lua_remove_specials(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct lua_device *lua;
lua_remove_sysfs_attributes(intf);
lua = hid_get_drvdata(hdev);
kfree(lua);
}
static int lua_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 = lua_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 lua_remove(struct hid_device *hdev)
{
lua_remove_specials(hdev);
hid_hw_stop(hdev);
}
static const struct hid_device_id lua_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
{ }
};
MODULE_DEVICE_TABLE(hid, lua_devices);
static struct hid_driver lua_driver = {
.name = "lua",
.id_table = lua_devices,
.probe = lua_probe,
.remove = lua_remove
};
static int __init lua_init(void)
{
return hid_register_driver(&lua_driver);
}
static void __exit lua_exit(void)
{
hid_unregister_driver(&lua_driver);
}
module_init(lua_init);
module_exit(lua_exit);
MODULE_AUTHOR("Stefan Achatz");
MODULE_DESCRIPTION("USB Roccat Lua driver");
MODULE_LICENSE("GPL v2");

29
drivers/hid/hid-roccat-lua.h Normal file
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@ -0,0 +1,29 @@
#ifndef __HID_ROCCAT_LUA_H
#define __HID_ROCCAT_LUA_H
/*
* Copyright (c) 2012 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.
*/
#include <linux/types.h>
enum {
LUA_SIZE_CONTROL = 8,
};
enum lua_commands {
LUA_COMMAND_CONTROL = 3,
};
struct lua_device {
struct mutex lua_lock;
};
#endif