--- /dev/null
+/*
+ * 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>
+#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-pyra.h"
+
+static uint profile_numbers[5] = {0, 1, 2, 3, 4};
+
+/* pyra_class is used for creating sysfs attributes via roccat char device */
+static struct class *pyra_class;
+
+static void profile_activated(struct pyra_device *pyra,
+ unsigned int new_profile)
+{
+ if (new_profile >= ARRAY_SIZE(pyra->profile_settings))
+ return;
+ 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)
+{
+ struct roccat_common2_control control;
+
+ if ((request == PYRA_CONTROL_REQUEST_PROFILE_SETTINGS ||
+ request == PYRA_CONTROL_REQUEST_PROFILE_BUTTONS) &&
+ (value < 0 || value > 4))
+ return -EINVAL;
+
+ control.command = ROCCAT_COMMON_COMMAND_CONTROL;
+ control.value = value;
+ control.request = request;
+
+ return roccat_common2_send(usb_dev, ROCCAT_COMMON_COMMAND_CONTROL,
+ &control, sizeof(struct roccat_common2_control));
+}
+
+static int pyra_get_profile_settings(struct usb_device *usb_dev,
+ struct pyra_profile_settings *buf, int number)
+{
+ int retval;
+ retval = pyra_send_control(usb_dev, number,
+ PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
+ if (retval)
+ return retval;
+ return roccat_common2_receive(usb_dev, PYRA_COMMAND_PROFILE_SETTINGS,
+ buf, PYRA_SIZE_PROFILE_SETTINGS);
+}
+
+static int pyra_get_settings(struct usb_device *usb_dev,
+ struct pyra_settings *buf)
+{
+ return roccat_common2_receive(usb_dev, PYRA_COMMAND_SETTINGS,
+ buf, PYRA_SIZE_SETTINGS);
+}
+
+static int pyra_set_settings(struct usb_device *usb_dev,
+ struct pyra_settings const *settings)
+{
+ return roccat_common2_send_with_status(usb_dev,
+ PYRA_COMMAND_SETTINGS, settings,
+ PYRA_SIZE_SETTINGS);
+}
+
+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)
+{
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
+ 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;
+
+ if (off >= real_size)
+ return 0;
+
+ if (off != 0 || count != real_size)
+ return -EINVAL;
+
+ mutex_lock(&pyra->pyra_lock);
+ retval = roccat_common2_receive(usb_dev, command, buf, real_size);
+ mutex_unlock(&pyra->pyra_lock);
+
+ if (retval)
+ return retval;
+
+ return real_size;
+}
+
+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)
+{
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
+ 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;
+
+ if (off != 0 || count != real_size)
+ return -EINVAL;
+
+ mutex_lock(&pyra->pyra_lock);
+ retval = roccat_common2_send_with_status(usb_dev, command, (void *)buf, real_size);
+ mutex_unlock(&pyra->pyra_lock);
+
+ if (retval)
+ return retval;
+
+ return real_size;
+}
+
+#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); \
+}
+
+#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); \
+}
+
+#define PYRA_SYSFS_RW(thingy, THINGY) \
+PYRA_SYSFS_W(thingy, THINGY) \
+PYRA_SYSFS_R(thingy, THINGY)
+
+#define PYRA_BIN_ATTRIBUTE_RW(thingy, THINGY) \
+PYRA_SYSFS_RW(thingy, THINGY); \
+static struct bin_attribute bin_attr_##thingy = { \
+ .attr = { .name = #thingy, .mode = 0660 }, \
+ .size = PYRA_SIZE_ ## THINGY, \
+ .read = pyra_sysfs_read_ ## thingy, \
+ .write = pyra_sysfs_write_ ## thingy \
+}
+
+#define PYRA_BIN_ATTRIBUTE_R(thingy, THINGY) \
+PYRA_SYSFS_R(thingy, THINGY); \
+static struct bin_attribute bin_attr_##thingy = { \
+ .attr = { .name = #thingy, .mode = 0440 }, \
+ .size = PYRA_SIZE_ ## THINGY, \
+ .read = pyra_sysfs_read_ ## thingy, \
+}
+
+#define PYRA_BIN_ATTRIBUTE_W(thingy, THINGY) \
+PYRA_SYSFS_W(thingy, THINGY); \
+static struct bin_attribute bin_attr_##thingy = { \
+ .attr = { .name = #thingy, .mode = 0220 }, \
+ .size = PYRA_SIZE_ ## THINGY, \
+ .write = pyra_sysfs_write_ ## thingy \
+}
+
+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);
+
+static ssize_t pyra_sysfs_read_profilex_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)->parent->parent;
+ struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+ ssize_t retval;
+
+ retval = pyra_send_control(usb_dev, *(uint *)(attr->private),
+ PYRA_CONTROL_REQUEST_PROFILE_SETTINGS);
+ if (retval)
+ return retval;
+
+ return pyra_sysfs_read(fp, kobj, buf, off, count,
+ PYRA_SIZE_PROFILE_SETTINGS,
+ PYRA_COMMAND_PROFILE_SETTINGS);
+}
+
+static ssize_t pyra_sysfs_read_profilex_buttons(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)->parent->parent;
+ struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+ ssize_t retval;
+
+ retval = pyra_send_control(usb_dev, *(uint *)(attr->private),
+ PYRA_CONTROL_REQUEST_PROFILE_BUTTONS);
+ if (retval)
+ return retval;
+
+ return pyra_sysfs_read(fp, kobj, buf, off, count,
+ PYRA_SIZE_PROFILE_BUTTONS,
+ PYRA_COMMAND_PROFILE_BUTTONS);
+}
+
+#define PROFILE_ATTR(number) \
+static struct bin_attribute bin_attr_profile##number##_settings = { \
+ .attr = { .name = "profile" #number "_settings", .mode = 0440 }, \
+ .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 = { \
+ .attr = { .name = "profile" #number "_buttons", .mode = 0440 }, \
+ .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);
+
+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)
+{
+ struct device *dev =
+ container_of(kobj, struct device, kobj)->parent->parent;
+ 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;
+ struct pyra_roccat_report roccat_report;
+ struct pyra_settings const *settings;
+
+ if (off != 0 || count != PYRA_SIZE_SETTINGS)
+ return -EINVAL;
+
+ settings = (struct pyra_settings const *)buf;
+ if (settings->startup_profile >= ARRAY_SIZE(pyra->profile_settings))
+ return -EINVAL;
+
+ mutex_lock(&pyra->pyra_lock);
+
+ retval = pyra_set_settings(usb_dev, settings);
+ if (retval) {
+ mutex_unlock(&pyra->pyra_lock);
+ return retval;
+ }
+
+ 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);
+
+ mutex_unlock(&pyra->pyra_lock);
+ return PYRA_SIZE_SETTINGS;
+}
+
+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);
+
+static ssize_t pyra_sysfs_show_actual_cpi(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pyra_device *pyra =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ return snprintf(buf, PAGE_SIZE, "%d\n", pyra->actual_cpi);
+}
+static DEVICE_ATTR(actual_cpi, 0440, pyra_sysfs_show_actual_cpi, NULL);
+
+static ssize_t pyra_sysfs_show_actual_profile(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pyra_device *pyra =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ 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\n", settings.startup_profile);
+}
+static DEVICE_ATTR(actual_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
+static DEVICE_ATTR(startup_profile, 0440, pyra_sysfs_show_actual_profile, NULL);
+
+static ssize_t pyra_sysfs_show_firmware_version(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct pyra_device *pyra;
+ struct usb_device *usb_dev;
+ struct pyra_info info;
+
+ 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\n", info.firmware_version);
+}
+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,
+};
+
+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,
+};
+
+static int pyra_init_pyra_device_struct(struct usb_device *usb_dev,
+ struct pyra_device *pyra)
+{
+ struct pyra_settings settings;
+ int retval, i;
+
+ mutex_init(&pyra->pyra_lock);
+
+ retval = pyra_get_settings(usb_dev, &settings);
+ 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;
+ }
+
+ profile_activated(pyra, settings.startup_profile);
+
+ 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) {
+ hid_err(hdev, "can't alloc device descriptor\n");
+ return -ENOMEM;
+ }
+ hid_set_drvdata(hdev, pyra);
+
+ retval = pyra_init_pyra_device_struct(usb_dev, pyra);
+ if (retval) {
+ hid_err(hdev, "couldn't init struct pyra_device\n");
+ goto exit_free;
+ }
+
+ retval = roccat_connect(pyra_class, hdev,
+ sizeof(struct pyra_roccat_report));
+ if (retval < 0) {
+ hid_err(hdev, "couldn't init char dev\n");
+ } else {
+ pyra->chrdev_minor = retval;
+ pyra->roccat_claimed = 1;
+ }
+ } 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) {
+ 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) {
+ 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 = pyra_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 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,
+ (uint8_t const *)&roccat_report);
+ 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;
+ /*
+ * pyra reports profile numbers with range 1-5.
+ * Keeping this behaviour.
+ */
+ roccat_report.value = pyra->actual_profile + 1;
+ roccat_report_event(pyra->chrdev_minor,
+ (uint8_t const *)&roccat_report);
+ }
+ 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;
+
+ if (pyra == NULL)
+ return 0;
+
+ 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) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT,
+ USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
+ { }
+};
+
+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)
+{
+ 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);
+ pyra_class->dev_groups = pyra_groups;
+
+ retval = hid_register_driver(&pyra_driver);
+ if (retval)
+ class_destroy(pyra_class);
+ return retval;
+}
+
+static void __exit pyra_exit(void)
+{
+ hid_unregister_driver(&pyra_driver);
+ class_destroy(pyra_class);
+}
+
+module_init(pyra_init);
+module_exit(pyra_exit);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Pyra driver");
+MODULE_LICENSE("GPL v2");
Code Review / kvmfornfv.git / blobdiff