diff options
Diffstat (limited to 'drivers/hid/hid-roccat-kone.c')
| -rw-r--r-- | drivers/hid/hid-roccat-kone.c | 1043 |
1 files changed, 1043 insertions, 0 deletions
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c new file mode 100644 index 000000000000..17f2dc04f883 --- /dev/null +++ b/drivers/hid/hid-roccat-kone.c @@ -0,0 +1,1043 @@ +/* + * Roccat Kone driver for Linux + * + * Copyright (c) 2010 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 Kone is a gamer mouse which consists of a mouse part and a keyboard + * part. The keyboard part enables the mouse to execute stored macros with mixed + * key- and button-events. + * + * TODO implement on-the-fly polling-rate change + * The windows driver has the ability to change the polling rate of the + * device on the press of a mousebutton. + * Is it possible to remove and reinstall the urb in raw-event- or any + * other handler, or to defer this action to be executed somewhere else? + * + * TODO implement notification mechanism for overlong macro execution + * If user wants to execute an overlong macro only the names of macroset + * and macro are given. Should userland tap hidraw or is there an + * additional streaming mechanism? + * + * TODO is it possible to overwrite group for sysfs attributes via udev? + */ + +#include <linux/device.h> +#include <linux/input.h> +#include <linux/hid.h> +#include <linux/usb.h> +#include <linux/module.h> +#include <linux/slab.h> +#include "hid-ids.h" +#include "hid-roccat.h" +#include "hid-roccat-kone.h" + +static void kone_set_settings_checksum(struct kone_settings *settings) +{ + uint16_t checksum = 0; + unsigned char *address = (unsigned char *)settings; + int i; + + for (i = 0; i < sizeof(struct kone_settings) - 2; ++i, ++address) + checksum += *address; + settings->checksum = cpu_to_le16(checksum); +} + +/* + * Checks success after writing data to mouse + * On success returns 0 + * On failure returns errno + */ +static int kone_check_write(struct usb_device *usb_dev) +{ + int len; + unsigned char *data; + + data = kmalloc(1, GFP_KERNEL); + if (!data) + return -ENOMEM; + + do { + /* + * Mouse needs 50 msecs until it says ok, but there are + * 30 more msecs needed for next write to work. + */ + msleep(80); + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | + USB_DIR_IN, + kone_command_confirm_write, 0, data, 1, + USB_CTRL_SET_TIMEOUT); + + if (len != 1) { + kfree(data); + return -EIO; + } + + /* + * value of 3 seems to mean something like + * "not finished yet, but it looks good" + * So check again after a moment. + */ + } while (*data == 3); + + if (*data == 1) { /* everything alright */ + kfree(data); + return 0; + } else { /* unknown answer */ + dev_err(&usb_dev->dev, "got retval %d when checking write\n", + *data); + kfree(data); + return -EIO; + } +} + +/* + * Reads settings from mouse and stores it in @buf + * @buf has to be alloced with GFP_KERNEL + * On success returns 0 + * On failure returns errno + */ +static int kone_get_settings(struct usb_device *usb_dev, + struct kone_settings *buf) +{ + int len; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_settings, 0, buf, + sizeof(struct kone_settings), USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_settings)) + return -EIO; + + return 0; +} + +/* + * Writes settings from @buf to mouse + * On success returns 0 + * On failure returns errno + */ +static int kone_set_settings(struct usb_device *usb_dev, + struct kone_settings const *settings) +{ + int len; + + len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_CONFIGURATION, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + kone_command_settings, 0, (char *)settings, + sizeof(struct kone_settings), + USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_settings)) + return -EIO; + + if (kone_check_write(usb_dev)) + return -EIO; + + return 0; +} + +/* + * Reads profile data from mouse and stores it in @buf + * @number: profile number to read + * On success returns 0 + * On failure returns errno + */ +static int kone_get_profile(struct usb_device *usb_dev, + struct kone_profile *buf, int number) +{ + int len; + + if (number < 1 || number > 5) + return -EINVAL; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_profile, number, buf, + sizeof(struct kone_profile), USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_profile)) + return -EIO; + + return 0; +} + +/* + * Writes profile data to mouse. + * @number: profile number to write + * On success returns 0 + * On failure returns errno + */ +static int kone_set_profile(struct usb_device *usb_dev, + struct kone_profile const *profile, int number) +{ + int len; + + if (number < 1 || number > 5) + return -EINVAL; + + len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_CONFIGURATION, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + kone_command_profile, number, (char *)profile, + sizeof(struct kone_profile), + USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_profile)) + return len; + + if (kone_check_write(usb_dev)) + return -EIO; + + return 0; +} + +/* + * Reads value of "fast-clip-weight" and stores it in @result + * On success returns 0 + * On failure returns errno + */ +static int kone_get_weight(struct usb_device *usb_dev, int *result) +{ + int len; + uint8_t *data; + + data = kmalloc(1, GFP_KERNEL); + if (!data) + return -ENOMEM; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_weight, 0, data, 1, USB_CTRL_SET_TIMEOUT); + + if (len != 1) { + kfree(data); + return -EIO; + } + *result = (int)*data; + kfree(data); + return 0; +} + +/* + * Reads firmware_version of mouse and stores it in @result + * On success returns 0 + * On failure returns errno + */ +static int kone_get_firmware_version(struct usb_device *usb_dev, int *result) +{ + int len; + unsigned char *data; + + data = kmalloc(2, GFP_KERNEL); + if (!data) + return -ENOMEM; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_firmware_version, 0, data, 2, + USB_CTRL_SET_TIMEOUT); + + if (len != 2) { + kfree(data); + return -EIO; + } + *result = le16_to_cpu(*data); + kfree(data); + return 0; +} + +static ssize_t kone_sysfs_read_settings(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + + if (off >= sizeof(struct kone_settings)) + return 0; + + if (off + count > sizeof(struct kone_settings)) + count = sizeof(struct kone_settings) - off; + + mutex_lock(&kone->kone_lock); + memcpy(buf, &kone->settings + off, count); + mutex_unlock(&kone->kone_lock); + + return count; +} + +/* + * Writing settings automatically activates startup_profile. + * This function keeps values in kone_device up to date and assumes that in + * case of error the old data is still valid + */ +static ssize_t kone_sysfs_write_settings(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int retval = 0, difference; + + /* I need to get my data in one piece */ + if (off != 0 || count != sizeof(struct kone_settings)) + return -EINVAL; + + mutex_lock(&kone->kone_lock); + difference = memcmp(buf, &kone->settings, sizeof(struct kone_settings)); + if (difference) { + retval = kone_set_settings(usb_dev, + (struct kone_settings const *)buf); + if (!retval) + memcpy(&kone->settings, buf, + sizeof(struct kone_settings)); + } + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + + /* + * If we get here, treat settings as okay and update actual values + * according to startup_profile + */ + kone->actual_profile = kone->settings.startup_profile; + kone->actual_dpi = kone->profiles[kone->actual_profile - 1].startup_dpi; + + return sizeof(struct kone_settings); +} + +static ssize_t kone_sysfs_read_profilex(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count, int number) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + + if (off >= sizeof(struct kone_profile)) + return 0; + + if (off + count > sizeof(struct kone_profile)) + count = sizeof(struct kone_profile) - off; + + mutex_lock(&kone->kone_lock); + memcpy(buf, &kone->profiles[number - 1], sizeof(struct kone_profile)); + mutex_unlock(&kone->kone_lock); + + return count; +} + +static ssize_t kone_sysfs_read_profile1(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 1); +} + +static ssize_t kone_sysfs_read_profile2(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 2); +} + +static ssize_t kone_sysfs_read_profile3(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 3); +} + +static ssize_t kone_sysfs_read_profile4(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 4); +} + +static ssize_t kone_sysfs_read_profile5(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 5); +} + +/* Writes data only if different to stored data */ +static ssize_t kone_sysfs_write_profilex(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count, int number) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + struct kone_profile *profile; + int retval = 0, difference; + + /* I need to get my data in one piece */ + if (off != 0 || count != sizeof(struct kone_profile)) + return -EINVAL; + + profile = &kone->profiles[number - 1]; + + mutex_lock(&kone->kone_lock); + difference = memcmp(buf, profile, sizeof(struct kone_profile)); + if (difference) { + retval = kone_set_profile(usb_dev, + (struct kone_profile const *)buf, number); + if (!retval) + memcpy(profile, buf, sizeof(struct kone_profile)); + } + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + + return sizeof(struct kone_profile); +} + +static ssize_t kone_sysfs_write_profile1(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 1); +} + +static ssize_t kone_sysfs_write_profile2(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 2); +} + +static ssize_t kone_sysfs_write_profile3(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 3); +} + +static ssize_t kone_sysfs_write_profile4(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 4); +} + +static ssize_t kone_sysfs_write_profile5(struct file *fp, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 5); +} + +static ssize_t kone_sysfs_show_actual_profile(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_profile); +} + +static ssize_t kone_sysfs_show_actual_dpi(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_dpi); +} + +/* weight is read each time, since we don't get informed when it's changed */ +static ssize_t kone_sysfs_show_weight(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int weight = 0; + int retval; + + mutex_lock(&kone->kone_lock); + retval = kone_get_weight(usb_dev, &weight); + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + return snprintf(buf, PAGE_SIZE, "%d\n", weight); +} + +static ssize_t kone_sysfs_show_firmware_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->firmware_version); +} + +static ssize_t kone_sysfs_show_tcu(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.tcu); +} + +static int kone_tcu_command(struct usb_device *usb_dev, int number) +{ + int len; + char *value; + + value = kmalloc(1, GFP_KERNEL); + if (!value) + return -ENOMEM; + + *value = number; + + len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_CONFIGURATION, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + kone_command_calibrate, 0, value, 1, + USB_CTRL_SET_TIMEOUT); + + kfree(value); + return ((len != 1) ? -EIO : 0); +} + +/* + * Calibrating the tcu is the only action that changes settings data inside the + * mouse, so this data needs to be reread + */ +static ssize_t kone_sysfs_set_tcu(struct device *dev, + struct device_attribute *attr, char const *buf, size_t size) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int retval; + unsigned long state; + + retval = strict_strtoul(buf, 10, &state); + if (retval) + return retval; + + if (state != 0 && state != 1) + return -EINVAL; + + mutex_lock(&kone->kone_lock); + + if (state == 1) { /* state activate */ + retval = kone_tcu_command(usb_dev, 1); + if (retval) + goto exit_unlock; + retval = kone_tcu_command(usb_dev, 2); + if (retval) + goto exit_unlock; + ssleep(5); /* tcu needs this time for calibration */ + retval = kone_tcu_command(usb_dev, 3); + if (retval) + goto exit_unlock; + retval = kone_tcu_command(usb_dev, 0); + if (retval) + goto exit_unlock; + retval = kone_tcu_command(usb_dev, 4); + if (retval) + goto exit_unlock; + /* + * Kone needs this time to settle things. + * Reading settings too early will result in invalid data. + * Roccat's driver waits 1 sec, maybe this time could be + * shortened. + */ + ssleep(1); + } + + /* calibration changes values in settings, so reread */ + retval = kone_get_settings(usb_dev, &kone->settings); + if (retval) + goto exit_no_settings; + + /* only write settings back if activation state is different */ + if (kone->settings.tcu != state) { + kone->settings.tcu = state; + kone_set_settings_checksum(&kone->settings); + + retval = kone_set_settings(usb_dev, &kone->settings); + if (retval) { + dev_err(&usb_dev->dev, "couldn't set tcu state\n"); + /* + * try to reread valid settings into buffer overwriting + * first error code + */ + retval = kone_get_settings(usb_dev, &kone->settings); + if (retval) + goto exit_no_settings; + goto exit_unlock; + } + } + + retval = size; +exit_no_settings: + dev_err(&usb_dev->dev, "couldn't read settings\n"); +exit_unlock: + mutex_unlock(&kone->kone_lock); + return retval; +} + +static ssize_t kone_sysfs_show_startup_profile(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.startup_profile); +} + +static ssize_t kone_sysfs_set_startup_profile(struct device *dev, + struct device_attribute *attr, char const *buf, size_t size) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int retval; + unsigned long new_startup_profile; + + retval = strict_strtoul(buf, 10, &new_startup_profile); + if (retval) + return retval; + + if (new_startup_profile < 1 || new_startup_profile > 5) + return -EINVAL; + + mutex_lock(&kone->kone_lock); + + kone->settings.startup_profile = new_startup_profile; + kone_set_settings_checksum(&kone->settings); + + retval = kone_set_settings(usb_dev, &kone->settings); + + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + + /* changing the startup profile immediately activates this profile */ + kone->actual_profile = new_startup_profile; + kone->actual_dpi = kone->profiles[kone->actual_profile - 1].startup_dpi; + + return size; +} + +/* + * This file is used by userland software to find devices that are handled by + * this driver. This provides a consistent way for actual and older kernels + * where this driver replaced usbhid instead of generic-usb. + * Driver capabilities are determined by version number. + */ +static ssize_t kone_sysfs_show_driver_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, ROCCAT_KONE_DRIVER_VERSION "\n"); +} + +/* + * Read actual dpi settings. + * Returns raw value for further processing. Refer to enum kone_polling_rates to + * get real value. + */ +static DEVICE_ATTR(actual_dpi, 0440, kone_sysfs_show_actual_dpi, NULL); + +static DEVICE_ATTR(actual_profile, 0440, kone_sysfs_show_actual_profile, NULL); + +/* + * The mouse can be equipped with one of four supplied weights from 5 to 20 + * grams which are recognized and its value can be read out. + * This returns the raw value reported by the mouse for easy evaluation by + * software. Refer to enum kone_weights to get corresponding real weight. + */ +static DEVICE_ATTR(weight, 0440, kone_sysfs_show_weight, NULL); + +/* + * Prints firmware version stored in mouse as integer. + * The raw value reported by the mouse is returned for easy evaluation, to get + * the real version number the decimal point has to be shifted 2 positions to + * the left. E.g. a value of 138 means 1.38. + */ +static DEVICE_ATTR(firmware_version, 0440, + kone_sysfs_show_firmware_version, NULL); + +/* + * Prints state of Tracking Control Unit as number where 0 = off and 1 = on + * Writing 0 deactivates tcu and writing 1 calibrates and activates the tcu + */ +static DEVICE_ATTR(tcu, 0660, kone_sysfs_show_tcu, kone_sysfs_set_tcu); + +/* Prints and takes the number of the profile the mouse starts with */ +static DEVICE_ATTR(startup_profile, 0660, + kone_sysfs_show_startup_profile, + kone_sysfs_set_startup_profile); + +static DEVICE_ATTR(kone_driver_version, 0440, + kone_sysfs_show_driver_version, NULL); + +static struct attribute *kone_attributes[] = { + &dev_attr_actual_dpi.attr, + &dev_attr_actual_profile.attr, + &dev_attr_weight.attr, + &dev_attr_firmware_version.attr, + &dev_attr_tcu.attr, + &dev_attr_startup_profile.attr, + &dev_attr_kone_driver_version.attr, + NULL +}; + +static struct attribute_group kone_attribute_group = { + .attrs = kone_attributes +}; + +static struct bin_attribute kone_settings_attr = { + .attr = { .name = "settings", .mode = 0660 }, + .size = sizeof(struct kone_settings), + .read = kone_sysfs_read_settings, + .write = kone_sysfs_write_settings +}; + +static struct bin_attribute kone_profile1_attr = { + .attr = { .name = "profile1", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile1, + .write = kone_sysfs_write_profile1 +}; + +static struct bin_attribute kone_profile2_attr = { + .attr = { .name = "profile2", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile2, + .write = kone_sysfs_write_profile2 +}; + +static struct bin_attribute kone_profile3_attr = { + .attr = { .name = "profile3", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile3, + .write = kone_sysfs_write_profile3 +}; + +static struct bin_attribute kone_profile4_attr = { + .attr = { .name = "profile4", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile4, + .write = kone_sysfs_write_profile4 +}; + +static struct bin_attribute kone_profile5_attr = { + .attr = { .name = "profile5", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile5, + .write = kone_sysfs_write_profile5 +}; + +static int kone_create_sysfs_attributes(struct usb_interface *intf) +{ + int retval; + + retval = sysfs_create_group(&intf->dev.kobj, &kone_attribute_group); + if (retval) + goto exit_1; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_settings_attr); + if (retval) + goto exit_2; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile1_attr); + if (retval) + goto exit_3; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile2_attr); + if (retval) + goto exit_4; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile3_attr); + if (retval) + goto exit_5; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile4_attr); + if (retval) + goto exit_6; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile5_attr); + if (retval) + goto exit_7; + + return 0; + +exit_7: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile4_attr); +exit_6: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile3_attr); +exit_5: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile2_attr); +exit_4: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile1_attr); +exit_3: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_settings_attr); +exit_2: + sysfs_remove_group(&intf->dev.kobj, &kone_attribute_group); +exit_1: + return retval; +} + +static void kone_remove_sysfs_attributes(struct usb_interface *intf) +{ + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile5_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile4_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile3_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile2_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile1_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_settings_attr); + sysfs_remove_group(&intf->dev.kobj, &kone_attribute_group); +} + +static int kone_init_kone_device_struct(struct usb_device *usb_dev, + struct kone_device *kone) +{ + uint i; + int retval; + + mutex_init(&kone->kone_lock); + + for (i = 0; i < 5; ++i) { + retval = kone_get_profile(usb_dev, &kone->profiles[i], i + 1); + if (retval) + return retval; + } + + retval = kone_get_settings(usb_dev, &kone->settings); + if (retval) + return retval; + + retval = kone_get_firmware_version(usb_dev, &kone->firmware_version); + if (retval) + return retval; + + kone->actual_profile = kone->settings.startup_profile; + kone->actual_dpi = kone->profiles[kone->actual_profile].startup_dpi; + + return 0; +} + +/* + * Since IGNORE_MOUSE quirk moved to hid-apple, there is no way to bind only to + * mousepart if usb_hid is compiled into the kernel and kone is compiled as + * module. + * Secial behaviour is bound only to mousepart since only mouseevents contain + * additional notifications. + */ +static int kone_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 kone_device *kone; + int retval; + + if (intf->cur_altsetting->desc.bInterfaceProtocol + == USB_INTERFACE_PROTOCOL_MOUSE) { + + kone = kzalloc(sizeof(*kone), GFP_KERNEL); + if (!kone) { + dev_err(&hdev->dev, "can't alloc device descriptor\n"); + return -ENOMEM; + } + hid_set_drvdata(hdev, kone); + + retval = kone_init_kone_device_struct(usb_dev, kone); + if (retval) { + dev_err(&hdev->dev, + "couldn't init struct kone_device\n"); + goto exit_free; + } + + retval = roccat_connect(hdev); + if (retval < 0) { + dev_err(&hdev->dev, "couldn't init char dev\n"); + /* be tolerant about not getting chrdev */ + } else { + kone->roccat_claimed = 1; + kone->chrdev_minor = retval; + } + + retval = kone_create_sysfs_attributes(intf); + if (retval) { + dev_err(&hdev->dev, "cannot create sysfs files\n"); + goto exit_free; + } + } else { + hid_set_drvdata(hdev, NULL); + } + + return 0; +exit_free: + kfree(kone); + return retval; +} + + +static void kone_remove_specials(struct hid_device *hdev) +{ + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + struct kone_device *kone; + + if (intf->cur_altsetting->desc.bInterfaceProtocol + == USB_INTERFACE_PROTOCOL_MOUSE) { + kone_remove_sysfs_attributes(intf); + kone = hid_get_drvdata(hdev); + if (kone->roccat_claimed) + roccat_disconnect(kone->chrdev_minor); + kfree(hid_get_drvdata(hdev)); + } +} + +static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int retval; + + retval = hid_parse(hdev); + if (retval) { + dev_err(&hdev->dev, "parse failed\n"); + goto exit; + } + + retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (retval) { + dev_err(&hdev->dev, "hw start failed\n"); + goto exit; + } + + retval = kone_init_specials(hdev); + if (retval) { + dev_err(&hdev->dev, "couldn't install mouse\n"); + goto exit_stop; + } + + return 0; + +exit_stop: + hid_hw_stop(hdev); +exit: + return retval; +} + +static void kone_remove(struct hid_device *hdev) +{ + kone_remove_specials(hdev); + hid_hw_stop(hdev); +} + +/* handle special events and keep actual profile and dpi values up to date */ +static void kone_keep_values_up_to_date(struct kone_device *kone, + struct kone_mouse_event const *event) +{ + switch (event->event) { + case kone_mouse_event_switch_profile: + case kone_mouse_event_osd_profile: + kone->actual_profile = event->value; + kone->actual_dpi = kone->profiles[kone->actual_profile - 1]. + startup_dpi; + break; + case kone_mouse_event_switch_dpi: + case kone_mouse_event_osd_dpi: + kone->actual_dpi = event->value; + break; + } +} + +static void kone_report_to_chrdev(struct kone_device const *kone, + struct kone_mouse_event const *event) +{ + struct kone_roccat_report roccat_report; + + switch (event->event) { + case kone_mouse_event_switch_profile: + case kone_mouse_event_switch_dpi: + case kone_mouse_event_osd_profile: + case kone_mouse_event_osd_dpi: + roccat_report.event = event->event; + roccat_report.value = event->value; + roccat_report.key = 0; + roccat_report_event(kone->chrdev_minor, + (uint8_t *)&roccat_report, + sizeof(struct kone_roccat_report)); + break; + case kone_mouse_event_call_overlong_macro: + if (event->value == kone_keystroke_action_press) { + roccat_report.event = kone_mouse_event_call_overlong_macro; + roccat_report.value = kone->actual_profile; + roccat_report.key = event->macro_key; + roccat_report_event(kone->chrdev_minor, + (uint8_t *)&roccat_report, + sizeof(struct kone_roccat_report)); + } + break; + } + +} + +/* + * Is called for keyboard- and mousepart. + * Only mousepart gets informations about special events in its extended event + * structure. + */ +static int kone_raw_event(struct hid_device *hdev, struct hid_report *report, + u8 *data, int size) +{ + struct kone_device *kone = hid_get_drvdata(hdev); + struct kone_mouse_event *event = (struct kone_mouse_event *)data; + + /* keyboard events are always processed by default handler */ + if (size != sizeof(struct kone_mouse_event)) + return 0; + + /* + * Firmware 1.38 introduced new behaviour for tilt and special buttons. + * Pressed button is reported in each movement event. + * Workaround sends only one event per press. + */ + if (memcmp(&kone->last_mouse_event.tilt, &event->tilt, 5)) + memcpy(&kone->last_mouse_event, event, + sizeof(struct kone_mouse_event)); + else + memset(&event->tilt, 0, 5); + + kone_keep_values_up_to_date(kone, event); + + if (kone->roccat_claimed) + kone_report_to_chrdev(kone, event); + + return 0; /* always do further processing */ +} + +static const struct hid_device_id kone_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, + { } +}; + +MODULE_DEVICE_TABLE(hid, kone_devices); + +static struct hid_driver kone_driver = { + .name = "kone", + .id_table = kone_devices, + .probe = kone_probe, + .remove = kone_remove, + .raw_event = kone_raw_event +}; + +static int __init kone_init(void) +{ + return hid_register_driver(&kone_driver); +} + +static void __exit kone_exit(void) +{ + hid_unregister_driver(&kone_driver); +} + +module_init(kone_init); +module_exit(kone_exit); + +MODULE_AUTHOR("Stefan Achatz"); +MODULE_DESCRIPTION("USB Roccat Kone driver"); +MODULE_LICENSE("GPL v2"); |