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drivers/hid/hid-roccat-pyra.c
16.3 KB
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/* * Roccat Pyra 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 Pyra is a mobile gamer mouse which comes in wired and wireless * variant. Wireless variant is not tested. * Userland tools can be found at http://sourceforge.net/projects/roccat */ #include <linux/device.h> #include <linux/input.h> #include <linux/hid.h> |
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#include <linux/module.h> #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-pyra.h" |
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static uint profile_numbers[5] = {0, 1, 2, 3, 4}; |
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/* pyra_class is used for creating sysfs attributes via roccat char device */ static struct class *pyra_class; |
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static void profile_activated(struct pyra_device *pyra, unsigned int new_profile) { |
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if (new_profile >= ARRAY_SIZE(pyra->profile_settings)) return; |
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pyra->actual_profile = new_profile; pyra->actual_cpi = pyra->profile_settings[pyra->actual_profile].y_cpi; } static int pyra_send_control(struct usb_device *usb_dev, int value, enum pyra_control_requests request) { |
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struct roccat_common2_control control; |
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if ((request == PYRA_CONTROL_REQUEST_PROFILE_SETTINGS || request == PYRA_CONTROL_REQUEST_PROFILE_BUTTONS) && (value < 0 || value > 4)) return -EINVAL; |
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control.command = ROCCAT_COMMON_COMMAND_CONTROL; |
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control.value = value; control.request = request; |
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return roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL, &control, sizeof(struct roccat_common2_control)); |
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} static int pyra_get_profile_settings(struct usb_device *usb_dev, struct pyra_profile_settings *buf, int number) { int retval; |
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retval = pyra_send_control(usb_dev, number, PYRA_CONTROL_REQUEST_PROFILE_SETTINGS); |
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if (retval) return retval; |
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return roccat_common2_receive(usb_dev, PYRA_COMMAND_PROFILE_SETTINGS, |
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buf, PYRA_SIZE_PROFILE_SETTINGS); |
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} static int pyra_get_settings(struct usb_device *usb_dev, struct pyra_settings *buf) { |
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return roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS, |
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buf, PYRA_SIZE_SETTINGS); |
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} static int pyra_set_settings(struct usb_device *usb_dev, struct pyra_settings const *settings) { |
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return roccat_common2_send_with_status(usb_dev, |
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PYRA_COMMAND_SETTINGS, settings, |
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PYRA_SIZE_SETTINGS); |
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} |
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static ssize_t pyra_sysfs_read(struct file *fp, struct kobject *kobj, char *buf, loff_t off, size_t count, size_t real_size, uint command) |
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{ |
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struct device *dev = kobj_to_dev(kobj)->parent->parent; |
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struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev)); |
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); 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) return -EINVAL; |
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mutex_lock(&pyra->pyra_lock); |
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retval = roccat_common2_receive(usb_dev, command, buf, real_size); |
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mutex_unlock(&pyra->pyra_lock); |
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if (retval) return retval; return real_size; |
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} |
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static ssize_t pyra_sysfs_write(struct file *fp, struct kobject *kobj, void const *buf, loff_t off, size_t count, size_t real_size, uint command) |
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{ |
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struct device *dev = kobj_to_dev(kobj)->parent->parent; |
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struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev)); |
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); int retval; |
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if (off != 0 || count != real_size) return -EINVAL; |
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mutex_lock(&pyra->pyra_lock); |
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retval = roccat_common2_send_with_status(usb_dev, command, (void *)buf, real_size); |
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mutex_unlock(&pyra->pyra_lock); |
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if (retval) return retval; return real_size; |
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} |
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#define PYRA_SYSFS_W(thingy, THINGY) \ static ssize_t pyra_sysfs_write_ ## thingy(struct file *fp, \ struct kobject *kobj, struct bin_attribute *attr, char *buf, \ loff_t off, size_t count) \ { \ return pyra_sysfs_write(fp, kobj, buf, off, count, \ PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \ } |
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#define PYRA_SYSFS_R(thingy, THINGY) \ static ssize_t pyra_sysfs_read_ ## thingy(struct file *fp, \ struct kobject *kobj, struct bin_attribute *attr, char *buf, \ loff_t off, size_t count) \ { \ return pyra_sysfs_read(fp, kobj, buf, off, count, \ PYRA_SIZE_ ## THINGY, PYRA_COMMAND_ ## THINGY); \ } |
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#define PYRA_SYSFS_RW(thingy, THINGY) \ PYRA_SYSFS_W(thingy, THINGY) \ PYRA_SYSFS_R(thingy, THINGY) |
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#define PYRA_BIN_ATTRIBUTE_RW(thingy, THINGY) \ |
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PYRA_SYSFS_RW(thingy, THINGY); \ static struct bin_attribute bin_attr_##thingy = { \ |
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.attr = { .name = #thingy, .mode = 0660 }, \ .size = PYRA_SIZE_ ## THINGY, \ .read = pyra_sysfs_read_ ## thingy, \ .write = pyra_sysfs_write_ ## thingy \ } |
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#define PYRA_BIN_ATTRIBUTE_R(thingy, THINGY) \ |
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PYRA_SYSFS_R(thingy, THINGY); \ static struct bin_attribute bin_attr_##thingy = { \ |
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.attr = { .name = #thingy, .mode = 0440 }, \ .size = PYRA_SIZE_ ## THINGY, \ .read = pyra_sysfs_read_ ## thingy, \ } |
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#define PYRA_BIN_ATTRIBUTE_W(thingy, THINGY) \ |
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PYRA_SYSFS_W(thingy, THINGY); \ static struct bin_attribute bin_attr_##thingy = { \ |
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.attr = { .name = #thingy, .mode = 0220 }, \ .size = PYRA_SIZE_ ## THINGY, \ .write = pyra_sysfs_write_ ## thingy \ |
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} |
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PYRA_BIN_ATTRIBUTE_W(control, CONTROL); PYRA_BIN_ATTRIBUTE_RW(info, INFO); PYRA_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS); PYRA_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS); |
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static ssize_t pyra_sysfs_read_profilex_settings(struct file *fp, |
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struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { |
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struct device *dev = kobj_to_dev(kobj)->parent->parent; |
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); |
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ssize_t retval; |
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retval = pyra_send_control(usb_dev, *(uint *)(attr->private), PYRA_CONTROL_REQUEST_PROFILE_SETTINGS); |
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if (retval) return retval; |
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return pyra_sysfs_read(fp, kobj, buf, off, count, PYRA_SIZE_PROFILE_SETTINGS, PYRA_COMMAND_PROFILE_SETTINGS); |
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} |
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static ssize_t pyra_sysfs_read_profilex_buttons(struct file *fp, |
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struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { |
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struct device *dev = kobj_to_dev(kobj)->parent->parent; |
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); ssize_t retval; |
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retval = pyra_send_control(usb_dev, *(uint *)(attr->private), PYRA_CONTROL_REQUEST_PROFILE_BUTTONS); if (retval) return retval; |
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return pyra_sysfs_read(fp, kobj, buf, off, count, PYRA_SIZE_PROFILE_BUTTONS, PYRA_COMMAND_PROFILE_BUTTONS); |
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} |
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#define PROFILE_ATTR(number) \ static struct bin_attribute bin_attr_profile##number##_settings = { \ |
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.attr = { .name = "profile" #number "_settings", .mode = 0440 }, \ |
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.size = PYRA_SIZE_PROFILE_SETTINGS, \ .read = pyra_sysfs_read_profilex_settings, \ .private = &profile_numbers[number-1], \ }; \ static struct bin_attribute bin_attr_profile##number##_buttons = { \ |
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.attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \ |
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.size = PYRA_SIZE_PROFILE_BUTTONS, \ .read = pyra_sysfs_read_profilex_buttons, \ .private = &profile_numbers[number-1], \ }; PROFILE_ATTR(1); PROFILE_ATTR(2); PROFILE_ATTR(3); PROFILE_ATTR(4); PROFILE_ATTR(5); |
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static ssize_t pyra_sysfs_write_settings(struct file *fp, struct kobject *kobj, struct bin_attribute *attr, char *buf, loff_t off, size_t count) { |
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struct device *dev = kobj_to_dev(kobj)->parent->parent; |
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struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev)); struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); int retval = 0; |
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struct pyra_roccat_report roccat_report; |
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struct pyra_settings const *settings; |
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if (off != 0 || count != PYRA_SIZE_SETTINGS) |
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return -EINVAL; |
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settings = (struct pyra_settings const *)buf; |
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if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings)) return -EINVAL; mutex_lock(&pyra->pyra_lock); |
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retval = pyra_set_settings(usb_dev, settings); if (retval) { mutex_unlock(&pyra->pyra_lock); return retval; |
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} |
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profile_activated(pyra, settings->startup_profile); roccat_report.type = PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2; roccat_report.value = settings->startup_profile + 1; roccat_report.key = 0; roccat_report_event(pyra->chrdev_minor, (uint8_t const *)&roccat_report); |
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mutex_unlock(&pyra->pyra_lock); |
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return PYRA_SIZE_SETTINGS; |
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} |
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PYRA_SYSFS_R(settings, SETTINGS); static struct bin_attribute bin_attr_settings = __BIN_ATTR(settings, (S_IWUSR | S_IRUGO), pyra_sysfs_read_settings, pyra_sysfs_write_settings, PYRA_SIZE_SETTINGS); |
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static ssize_t pyra_sysfs_show_actual_cpi(struct device *dev, struct device_attribute *attr, char *buf) { |
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struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); |
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return snprintf(buf, PAGE_SIZE, "%d ", pyra->actual_cpi); } |
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static DEVICE_ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL); |
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static ssize_t pyra_sysfs_show_actual_profile(struct device *dev, struct device_attribute *attr, char *buf) { |
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struct pyra_device *pyra = hid_get_drvdata(dev_get_drvdata(dev->parent->parent)); |
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struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); struct pyra_settings settings; mutex_lock(&pyra->pyra_lock); roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS, &settings, PYRA_SIZE_SETTINGS); mutex_unlock(&pyra->pyra_lock); return snprintf(buf, PAGE_SIZE, "%d ", settings.startup_profile); |
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} |
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static DEVICE_ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL); static DEVICE_ATTR(startup_profile, 0440, pyra_sysfs_show_actual_profile, NULL); |
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static ssize_t pyra_sysfs_show_firmware_version(struct device *dev, struct device_attribute *attr, char *buf) { |
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struct pyra_device *pyra; struct usb_device *usb_dev; struct pyra_info info; |
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dev = dev->parent->parent; pyra = hid_get_drvdata(dev_get_drvdata(dev)); usb_dev = interface_to_usbdev(to_usb_interface(dev)); mutex_lock(&pyra->pyra_lock); roccat_common2_receive(usb_dev, PYRA_COMMAND_INFO, &info, PYRA_SIZE_INFO); mutex_unlock(&pyra->pyra_lock); return snprintf(buf, PAGE_SIZE, "%d ", info.firmware_version); |
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} |
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static DEVICE_ATTR(firmware_version, 0440, pyra_sysfs_show_firmware_version, NULL); static struct attribute *pyra_attrs[] = { &dev_attr_actual_cpi.attr, &dev_attr_actual_profile.attr, &dev_attr_firmware_version.attr, &dev_attr_startup_profile.attr, NULL, |
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}; |
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static struct bin_attribute *pyra_bin_attributes[] = { &bin_attr_control, &bin_attr_info, &bin_attr_profile_settings, &bin_attr_profile_buttons, &bin_attr_settings, &bin_attr_profile1_settings, &bin_attr_profile2_settings, &bin_attr_profile3_settings, &bin_attr_profile4_settings, &bin_attr_profile5_settings, &bin_attr_profile1_buttons, &bin_attr_profile2_buttons, &bin_attr_profile3_buttons, &bin_attr_profile4_buttons, &bin_attr_profile5_buttons, NULL, }; static const struct attribute_group pyra_group = { .attrs = pyra_attrs, .bin_attrs = pyra_bin_attributes, }; static const struct attribute_group *pyra_groups[] = { &pyra_group, NULL, |
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}; |
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static int pyra_init_pyra_device_struct(struct usb_device *usb_dev, struct pyra_device *pyra) { |
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struct pyra_settings settings; |
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int retval, i; mutex_init(&pyra->pyra_lock); |
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retval = pyra_get_settings(usb_dev, &settings); |
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if (retval) return retval; for (i = 0; i < 5; ++i) { retval = pyra_get_profile_settings(usb_dev, &pyra->profile_settings[i], i); if (retval) return retval; |
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} |
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profile_activated(pyra, settings.startup_profile); |
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return 0; } static int pyra_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 pyra_device *pyra; int retval; if (intf->cur_altsetting->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE) { pyra = kzalloc(sizeof(*pyra), GFP_KERNEL); if (!pyra) { |
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hid_err(hdev, "can't alloc device descriptor "); |
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return -ENOMEM; } hid_set_drvdata(hdev, pyra); retval = pyra_init_pyra_device_struct(usb_dev, pyra); if (retval) { |
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hid_err(hdev, "couldn't init struct pyra_device "); |
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goto exit_free; } |
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retval = roccat_connect(pyra_class, hdev, sizeof(struct pyra_roccat_report)); |
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if (retval < 0) { |
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hid_err(hdev, "couldn't init char dev "); |
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} else { pyra->chrdev_minor = retval; pyra->roccat_claimed = 1; } |
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} else { hid_set_drvdata(hdev, NULL); } return 0; exit_free: kfree(pyra); return retval; } static void pyra_remove_specials(struct hid_device *hdev) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); struct pyra_device *pyra; if (intf->cur_altsetting->desc.bInterfaceProtocol == USB_INTERFACE_PROTOCOL_MOUSE) { |
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pyra = hid_get_drvdata(hdev); if (pyra->roccat_claimed) roccat_disconnect(pyra->chrdev_minor); kfree(hid_get_drvdata(hdev)); } } static int pyra_probe(struct hid_device *hdev, const struct hid_device_id *id) { int retval; retval = hid_parse(hdev); if (retval) { |
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hid_err(hdev, "parse failed "); |
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goto exit; } retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (retval) { |
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hid_err(hdev, "hw start failed "); |
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goto exit; } retval = pyra_init_specials(hdev); if (retval) { |
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hid_err(hdev, "couldn't install mouse "); |
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goto exit_stop; } return 0; exit_stop: hid_hw_stop(hdev); exit: return retval; } static void pyra_remove(struct hid_device *hdev) { pyra_remove_specials(hdev); hid_hw_stop(hdev); } static void pyra_keep_values_up_to_date(struct pyra_device *pyra, u8 const *data) { struct pyra_mouse_event_button const *button_event; switch (data[0]) { case PYRA_MOUSE_REPORT_NUMBER_BUTTON: button_event = (struct pyra_mouse_event_button const *)data; switch (button_event->type) { case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2: profile_activated(pyra, button_event->data1 - 1); break; case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI: pyra->actual_cpi = button_event->data1; break; } break; } } static void pyra_report_to_chrdev(struct pyra_device const *pyra, u8 const *data) { struct pyra_roccat_report roccat_report; struct pyra_mouse_event_button const *button_event; if (data[0] != PYRA_MOUSE_REPORT_NUMBER_BUTTON) return; button_event = (struct pyra_mouse_event_button const *)data; switch (button_event->type) { case PYRA_MOUSE_EVENT_BUTTON_TYPE_PROFILE_2: case PYRA_MOUSE_EVENT_BUTTON_TYPE_CPI: roccat_report.type = button_event->type; roccat_report.value = button_event->data1; roccat_report.key = 0; roccat_report_event(pyra->chrdev_minor, |
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(uint8_t const *)&roccat_report); |
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break; case PYRA_MOUSE_EVENT_BUTTON_TYPE_MACRO: case PYRA_MOUSE_EVENT_BUTTON_TYPE_SHORTCUT: case PYRA_MOUSE_EVENT_BUTTON_TYPE_QUICKLAUNCH: if (button_event->data2 == PYRA_MOUSE_EVENT_BUTTON_PRESS) { roccat_report.type = button_event->type; roccat_report.key = button_event->data1; |
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/* * pyra reports profile numbers with range 1-5. * Keeping this behaviour. */ roccat_report.value = pyra->actual_profile + 1; |
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roccat_report_event(pyra->chrdev_minor, |
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(uint8_t const *)&roccat_report); |
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} break; } } static int pyra_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 pyra_device *pyra = hid_get_drvdata(hdev); if (intf->cur_altsetting->desc.bInterfaceProtocol != USB_INTERFACE_PROTOCOL_MOUSE) return 0; |
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if (pyra == NULL) return 0; |
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pyra_keep_values_up_to_date(pyra, data); if (pyra->roccat_claimed) pyra_report_to_chrdev(pyra, data); return 0; } static const struct hid_device_id pyra_devices[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, |
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{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) }, |
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{ } }; MODULE_DEVICE_TABLE(hid, pyra_devices); static struct hid_driver pyra_driver = { .name = "pyra", .id_table = pyra_devices, .probe = pyra_probe, .remove = pyra_remove, .raw_event = pyra_raw_event }; static int __init pyra_init(void) { |
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int retval; /* class name has to be same as driver name */ pyra_class = class_create(THIS_MODULE, "pyra"); if (IS_ERR(pyra_class)) return PTR_ERR(pyra_class); |
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pyra_class->dev_groups = pyra_groups; |
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retval = hid_register_driver(&pyra_driver); if (retval) class_destroy(pyra_class); return retval; |
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} static void __exit pyra_exit(void) { hid_unregister_driver(&pyra_driver); |
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class_destroy(pyra_class); |
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} module_init(pyra_init); module_exit(pyra_exit); MODULE_AUTHOR("Stefan Achatz"); MODULE_DESCRIPTION("USB Roccat Pyra driver"); MODULE_LICENSE("GPL v2"); |