mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
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22e04f6b4b
Pull HID updates from Jiri Kosina: "Highlights: - conversion of HID subsystem to use devm-based resource management, from Benjamin Tissoires - i2c-hid support for DT bindings, from Benjamin Tissoires - much improved support for Win8-multitouch devices, from Benjamin Tissoires - cleanup of core code using common hidinput_input_event(), from David Herrmann - fix for bug in implement() access to the bit stream (causing oops) that has been present in the code for ages, but devices that are able to trigger it have started to appear only now, from Jiri Kosina - fixes for CVE-2013-2899, CVE-2013-2898, CVE-2013-2896, CVE-2013-2892, CVE-2013-2888 (all triggerable only by specially crafted malicious HW devices plugged into the system), from Kees Cook - hidraw oops fix, from Manoj Chourasia - various smaller fixes here and there, support for a bunch of new devices by various contributors" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (53 commits) HID: MAINTAINERS: add roccat drivers HID: hid-sensor-hub: change kmalloc + memcpy by kmemdup HID: hid-sensor-hub: move to devm_kzalloc HID: hid-sensor-hub: fix indentation accross the code HID: move HID_REPORT_TYPES closer to the report-definitions HID: check for NULL field when setting values HID: picolcd_core: validate output report details HID: sensor-hub: validate feature report details HID: ntrig: validate feature report details HID: pantherlord: validate output report details HID: hid-wiimote: print small buffers via %*phC HID: uhid: improve uhid example client HID: Correct the USB IDs for the new Macbook Air 6 HID: wiimote: add support for Guitar-Hero guitars HID: wiimote: add support for Guitar-Hero drums Input: introduce BTN/ABS bits for drums and guitars HID: battery: don't do DMA from stack HID: roccat: add support for KonePureOptical v2 HID: picolcd: Prevent NULL pointer dereference on _remove() HID: usbhid: quirk for N-Trig DuoSense Touch Screen ...
463 lines
11 KiB
C
463 lines
11 KiB
C
/*
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* Roccat Isku driver for Linux
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*
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* Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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/*
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* Roccat Isku is a gamer keyboard with macro keys that can be configured in
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* 5 profiles.
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*/
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#include <linux/device.h>
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#include <linux/input.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/hid-roccat.h>
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#include "hid-ids.h"
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#include "hid-roccat-common.h"
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#include "hid-roccat-isku.h"
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static struct class *isku_class;
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static void isku_profile_activated(struct isku_device *isku, uint new_profile)
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{
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isku->actual_profile = new_profile;
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}
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static int isku_receive(struct usb_device *usb_dev, uint command,
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void *buf, uint size)
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{
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return roccat_common2_receive(usb_dev, command, buf, size);
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}
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static int isku_get_actual_profile(struct usb_device *usb_dev)
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{
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struct isku_actual_profile buf;
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int retval;
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retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
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&buf, sizeof(struct isku_actual_profile));
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return retval ? retval : buf.actual_profile;
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}
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static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
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{
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struct isku_actual_profile buf;
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buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
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buf.size = sizeof(struct isku_actual_profile);
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buf.actual_profile = new_profile;
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return roccat_common2_send_with_status(usb_dev,
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ISKU_COMMAND_ACTUAL_PROFILE, &buf,
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sizeof(struct isku_actual_profile));
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}
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static ssize_t isku_sysfs_show_actual_profile(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct isku_device *isku =
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hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
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return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile);
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}
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static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
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struct device_attribute *attr, char const *buf, size_t size)
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{
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struct isku_device *isku;
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struct usb_device *usb_dev;
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unsigned long profile;
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int retval;
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struct isku_roccat_report roccat_report;
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dev = dev->parent->parent;
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isku = hid_get_drvdata(dev_get_drvdata(dev));
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usb_dev = interface_to_usbdev(to_usb_interface(dev));
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retval = kstrtoul(buf, 10, &profile);
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if (retval)
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return retval;
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if (profile > 4)
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return -EINVAL;
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mutex_lock(&isku->isku_lock);
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retval = isku_set_actual_profile(usb_dev, profile);
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if (retval) {
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mutex_unlock(&isku->isku_lock);
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return retval;
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}
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isku_profile_activated(isku, profile);
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roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
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roccat_report.data1 = profile + 1;
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roccat_report.data2 = 0;
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roccat_report.profile = profile + 1;
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roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);
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mutex_unlock(&isku->isku_lock);
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return size;
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}
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static DEVICE_ATTR(actual_profile, 0660, isku_sysfs_show_actual_profile,
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isku_sysfs_set_actual_profile);
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static struct attribute *isku_attrs[] = {
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&dev_attr_actual_profile.attr,
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NULL,
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};
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static ssize_t isku_sysfs_read(struct file *fp, struct kobject *kobj,
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char *buf, loff_t off, size_t count,
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size_t real_size, uint command)
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{
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struct device *dev =
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container_of(kobj, struct device, kobj)->parent->parent;
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struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
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int retval;
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if (off >= real_size)
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return 0;
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if (off != 0 || count > real_size)
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return -EINVAL;
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mutex_lock(&isku->isku_lock);
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retval = isku_receive(usb_dev, command, buf, count);
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mutex_unlock(&isku->isku_lock);
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return retval ? retval : count;
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}
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static ssize_t isku_sysfs_write(struct file *fp, struct kobject *kobj,
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void const *buf, loff_t off, size_t count,
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size_t real_size, uint command)
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{
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struct device *dev =
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container_of(kobj, struct device, kobj)->parent->parent;
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struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
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int retval;
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if (off != 0 || count > real_size)
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return -EINVAL;
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mutex_lock(&isku->isku_lock);
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retval = roccat_common2_send_with_status(usb_dev, command,
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(void *)buf, count);
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mutex_unlock(&isku->isku_lock);
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return retval ? retval : count;
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}
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#define ISKU_SYSFS_W(thingy, THINGY) \
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static ssize_t isku_sysfs_write_ ## thingy(struct file *fp, struct kobject *kobj, \
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struct bin_attribute *attr, char *buf, \
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loff_t off, size_t count) \
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{ \
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return isku_sysfs_write(fp, kobj, buf, off, count, \
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ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
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}
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#define ISKU_SYSFS_R(thingy, THINGY) \
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static ssize_t isku_sysfs_read_ ## thingy(struct file *fp, struct kobject *kobj, \
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struct bin_attribute *attr, char *buf, \
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loff_t off, size_t count) \
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{ \
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return isku_sysfs_read(fp, kobj, buf, off, count, \
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ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
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}
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#define ISKU_SYSFS_RW(thingy, THINGY) \
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ISKU_SYSFS_R(thingy, THINGY) \
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ISKU_SYSFS_W(thingy, THINGY)
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#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
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ISKU_SYSFS_RW(thingy, THINGY); \
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static struct bin_attribute bin_attr_##thingy = { \
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.attr = { .name = #thingy, .mode = 0660 }, \
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.size = ISKU_SIZE_ ## THINGY, \
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.read = isku_sysfs_read_ ## thingy, \
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.write = isku_sysfs_write_ ## thingy \
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}
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#define ISKU_BIN_ATTR_R(thingy, THINGY) \
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ISKU_SYSFS_R(thingy, THINGY); \
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static struct bin_attribute bin_attr_##thingy = { \
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.attr = { .name = #thingy, .mode = 0440 }, \
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.size = ISKU_SIZE_ ## THINGY, \
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.read = isku_sysfs_read_ ## thingy, \
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}
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#define ISKU_BIN_ATTR_W(thingy, THINGY) \
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ISKU_SYSFS_W(thingy, THINGY); \
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static struct bin_attribute bin_attr_##thingy = { \
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.attr = { .name = #thingy, .mode = 0220 }, \
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.size = ISKU_SIZE_ ## THINGY, \
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.write = isku_sysfs_write_ ## thingy \
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}
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ISKU_BIN_ATTR_RW(macro, MACRO);
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ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION);
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ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE);
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ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA);
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ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER);
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ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO);
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ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK);
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ISKU_BIN_ATTR_RW(light, LIGHT);
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ISKU_BIN_ATTR_RW(key_mask, KEY_MASK);
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ISKU_BIN_ATTR_RW(last_set, LAST_SET);
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ISKU_BIN_ATTR_W(talk, TALK);
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ISKU_BIN_ATTR_W(talkfx, TALKFX);
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ISKU_BIN_ATTR_W(control, CONTROL);
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ISKU_BIN_ATTR_W(reset, RESET);
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ISKU_BIN_ATTR_R(info, INFO);
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static struct bin_attribute *isku_bin_attributes[] = {
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&bin_attr_macro,
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&bin_attr_keys_function,
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&bin_attr_keys_easyzone,
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&bin_attr_keys_media,
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&bin_attr_keys_thumbster,
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&bin_attr_keys_macro,
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&bin_attr_keys_capslock,
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&bin_attr_light,
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&bin_attr_key_mask,
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&bin_attr_last_set,
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&bin_attr_talk,
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&bin_attr_talkfx,
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&bin_attr_control,
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&bin_attr_reset,
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&bin_attr_info,
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NULL,
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};
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static const struct attribute_group isku_group = {
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.attrs = isku_attrs,
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.bin_attrs = isku_bin_attributes,
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};
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static const struct attribute_group *isku_groups[] = {
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&isku_group,
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NULL,
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};
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static int isku_init_isku_device_struct(struct usb_device *usb_dev,
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struct isku_device *isku)
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{
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int retval;
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mutex_init(&isku->isku_lock);
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retval = isku_get_actual_profile(usb_dev);
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if (retval < 0)
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return retval;
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isku_profile_activated(isku, retval);
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return 0;
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}
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static int isku_init_specials(struct hid_device *hdev)
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{
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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struct usb_device *usb_dev = interface_to_usbdev(intf);
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struct isku_device *isku;
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int retval;
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if (intf->cur_altsetting->desc.bInterfaceProtocol
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!= ISKU_USB_INTERFACE_PROTOCOL) {
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hid_set_drvdata(hdev, NULL);
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return 0;
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}
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isku = kzalloc(sizeof(*isku), GFP_KERNEL);
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if (!isku) {
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hid_err(hdev, "can't alloc device descriptor\n");
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return -ENOMEM;
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}
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hid_set_drvdata(hdev, isku);
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retval = isku_init_isku_device_struct(usb_dev, isku);
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if (retval) {
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hid_err(hdev, "couldn't init struct isku_device\n");
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goto exit_free;
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}
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retval = roccat_connect(isku_class, hdev,
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sizeof(struct isku_roccat_report));
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if (retval < 0) {
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hid_err(hdev, "couldn't init char dev\n");
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} else {
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isku->chrdev_minor = retval;
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isku->roccat_claimed = 1;
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}
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return 0;
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exit_free:
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kfree(isku);
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return retval;
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}
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static void isku_remove_specials(struct hid_device *hdev)
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{
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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struct isku_device *isku;
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if (intf->cur_altsetting->desc.bInterfaceProtocol
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!= ISKU_USB_INTERFACE_PROTOCOL)
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return;
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isku = hid_get_drvdata(hdev);
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if (isku->roccat_claimed)
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roccat_disconnect(isku->chrdev_minor);
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kfree(isku);
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}
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static int isku_probe(struct hid_device *hdev,
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const struct hid_device_id *id)
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{
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int retval;
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retval = hid_parse(hdev);
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if (retval) {
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hid_err(hdev, "parse failed\n");
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goto exit;
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}
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retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
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if (retval) {
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hid_err(hdev, "hw start failed\n");
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goto exit;
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}
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retval = isku_init_specials(hdev);
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if (retval) {
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hid_err(hdev, "couldn't install keyboard\n");
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goto exit_stop;
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}
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return 0;
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exit_stop:
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hid_hw_stop(hdev);
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exit:
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return retval;
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}
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static void isku_remove(struct hid_device *hdev)
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{
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isku_remove_specials(hdev);
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hid_hw_stop(hdev);
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}
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static void isku_keep_values_up_to_date(struct isku_device *isku,
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u8 const *data)
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{
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struct isku_report_button const *button_report;
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switch (data[0]) {
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case ISKU_REPORT_NUMBER_BUTTON:
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button_report = (struct isku_report_button const *)data;
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switch (button_report->event) {
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case ISKU_REPORT_BUTTON_EVENT_PROFILE:
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isku_profile_activated(isku, button_report->data1 - 1);
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break;
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}
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break;
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}
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}
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static void isku_report_to_chrdev(struct isku_device const *isku,
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u8 const *data)
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{
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struct isku_roccat_report roccat_report;
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struct isku_report_button const *button_report;
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if (data[0] != ISKU_REPORT_NUMBER_BUTTON)
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return;
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button_report = (struct isku_report_button const *)data;
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roccat_report.event = button_report->event;
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roccat_report.data1 = button_report->data1;
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roccat_report.data2 = button_report->data2;
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roccat_report.profile = isku->actual_profile + 1;
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roccat_report_event(isku->chrdev_minor,
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(uint8_t const *)&roccat_report);
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}
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static int isku_raw_event(struct hid_device *hdev,
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struct hid_report *report, u8 *data, int size)
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{
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struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
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struct isku_device *isku = hid_get_drvdata(hdev);
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if (intf->cur_altsetting->desc.bInterfaceProtocol
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!= ISKU_USB_INTERFACE_PROTOCOL)
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return 0;
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if (isku == NULL)
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return 0;
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isku_keep_values_up_to_date(isku, data);
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if (isku->roccat_claimed)
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isku_report_to_chrdev(isku, data);
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return 0;
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}
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static const struct hid_device_id isku_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, isku_devices);
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static struct hid_driver isku_driver = {
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.name = "isku",
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.id_table = isku_devices,
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.probe = isku_probe,
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.remove = isku_remove,
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.raw_event = isku_raw_event
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};
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static int __init isku_init(void)
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{
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int retval;
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isku_class = class_create(THIS_MODULE, "isku");
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if (IS_ERR(isku_class))
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return PTR_ERR(isku_class);
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isku_class->dev_groups = isku_groups;
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retval = hid_register_driver(&isku_driver);
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if (retval)
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class_destroy(isku_class);
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return retval;
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}
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static void __exit isku_exit(void)
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{
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hid_unregister_driver(&isku_driver);
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class_destroy(isku_class);
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}
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module_init(isku_init);
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module_exit(isku_exit);
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MODULE_AUTHOR("Stefan Achatz");
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MODULE_DESCRIPTION("USB Roccat Isku/FX driver");
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MODULE_LICENSE("GPL v2");
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