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Diffstat (limited to 'kernel/drivers/hid/hid-roccat-arvo.c')
-rw-r--r--kernel/drivers/hid/hid-roccat-arvo.c460
1 files changed, 460 insertions, 0 deletions
diff --git a/kernel/drivers/hid/hid-roccat-arvo.c b/kernel/drivers/hid/hid-roccat-arvo.c
new file mode 100644
index 000000000..1948208fe
--- /dev/null
+++ b/kernel/drivers/hid/hid-roccat-arvo.c
@@ -0,0 +1,460 @@
+/*
+ * Roccat Arvo driver for Linux
+ *
+ * Copyright (c) 2011 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 Arvo is a gamer keyboard with 5 macro keys that can be configured in
+ * 5 profiles.
+ */
+
+#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-arvo.h"
+
+static struct class *arvo_class;
+
+static ssize_t arvo_sysfs_show_mode_key(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct arvo_device *arvo =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(dev->parent->parent));
+ struct arvo_mode_key temp_buf;
+ int retval;
+
+ mutex_lock(&arvo->arvo_lock);
+ retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_MODE_KEY,
+ &temp_buf, sizeof(struct arvo_mode_key));
+ mutex_unlock(&arvo->arvo_lock);
+ if (retval)
+ return retval;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", temp_buf.state);
+}
+
+static ssize_t arvo_sysfs_set_mode_key(struct device *dev,
+ struct device_attribute *attr, char const *buf, size_t size)
+{
+ struct arvo_device *arvo =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(dev->parent->parent));
+ struct arvo_mode_key temp_buf;
+ unsigned long state;
+ int retval;
+
+ retval = kstrtoul(buf, 10, &state);
+ if (retval)
+ return retval;
+
+ temp_buf.command = ARVO_COMMAND_MODE_KEY;
+ temp_buf.state = state;
+
+ mutex_lock(&arvo->arvo_lock);
+ retval = roccat_common2_send(usb_dev, ARVO_COMMAND_MODE_KEY,
+ &temp_buf, sizeof(struct arvo_mode_key));
+ mutex_unlock(&arvo->arvo_lock);
+ if (retval)
+ return retval;
+
+ return size;
+}
+static DEVICE_ATTR(mode_key, 0660,
+ arvo_sysfs_show_mode_key, arvo_sysfs_set_mode_key);
+
+static ssize_t arvo_sysfs_show_key_mask(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct arvo_device *arvo =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(dev->parent->parent));
+ struct arvo_key_mask temp_buf;
+ int retval;
+
+ mutex_lock(&arvo->arvo_lock);
+ retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_KEY_MASK,
+ &temp_buf, sizeof(struct arvo_key_mask));
+ mutex_unlock(&arvo->arvo_lock);
+ if (retval)
+ return retval;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", temp_buf.key_mask);
+}
+
+static ssize_t arvo_sysfs_set_key_mask(struct device *dev,
+ struct device_attribute *attr, char const *buf, size_t size)
+{
+ struct arvo_device *arvo =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(dev->parent->parent));
+ struct arvo_key_mask temp_buf;
+ unsigned long key_mask;
+ int retval;
+
+ retval = kstrtoul(buf, 10, &key_mask);
+ if (retval)
+ return retval;
+
+ temp_buf.command = ARVO_COMMAND_KEY_MASK;
+ temp_buf.key_mask = key_mask;
+
+ mutex_lock(&arvo->arvo_lock);
+ retval = roccat_common2_send(usb_dev, ARVO_COMMAND_KEY_MASK,
+ &temp_buf, sizeof(struct arvo_key_mask));
+ mutex_unlock(&arvo->arvo_lock);
+ if (retval)
+ return retval;
+
+ return size;
+}
+static DEVICE_ATTR(key_mask, 0660,
+ arvo_sysfs_show_key_mask, arvo_sysfs_set_key_mask);
+
+/* retval is 1-5 on success, < 0 on error */
+static int arvo_get_actual_profile(struct usb_device *usb_dev)
+{
+ struct arvo_actual_profile temp_buf;
+ int retval;
+
+ retval = roccat_common2_receive(usb_dev, ARVO_COMMAND_ACTUAL_PROFILE,
+ &temp_buf, sizeof(struct arvo_actual_profile));
+
+ if (retval)
+ return retval;
+
+ return temp_buf.actual_profile;
+}
+
+static ssize_t arvo_sysfs_show_actual_profile(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct arvo_device *arvo =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", arvo->actual_profile);
+}
+
+static ssize_t arvo_sysfs_set_actual_profile(struct device *dev,
+ struct device_attribute *attr, char const *buf, size_t size)
+{
+ struct arvo_device *arvo =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ struct usb_device *usb_dev =
+ interface_to_usbdev(to_usb_interface(dev->parent->parent));
+ struct arvo_actual_profile temp_buf;
+ unsigned long profile;
+ int retval;
+
+ retval = kstrtoul(buf, 10, &profile);
+ if (retval)
+ return retval;
+
+ if (profile < 1 || profile > 5)
+ return -EINVAL;
+
+ temp_buf.command = ARVO_COMMAND_ACTUAL_PROFILE;
+ temp_buf.actual_profile = profile;
+
+ mutex_lock(&arvo->arvo_lock);
+ retval = roccat_common2_send(usb_dev, ARVO_COMMAND_ACTUAL_PROFILE,
+ &temp_buf, sizeof(struct arvo_actual_profile));
+ if (!retval) {
+ arvo->actual_profile = profile;
+ retval = size;
+ }
+ mutex_unlock(&arvo->arvo_lock);
+ return retval;
+}
+static DEVICE_ATTR(actual_profile, 0660,
+ arvo_sysfs_show_actual_profile,
+ arvo_sysfs_set_actual_profile);
+
+static ssize_t arvo_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 arvo_device *arvo = 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(&arvo->arvo_lock);
+ retval = roccat_common2_send(usb_dev, command, buf, real_size);
+ mutex_unlock(&arvo->arvo_lock);
+
+ return (retval ? retval : real_size);
+}
+
+static ssize_t arvo_sysfs_read(struct file *fp,
+ struct kobject *kobj, void *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 arvo_device *arvo = 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(&arvo->arvo_lock);
+ retval = roccat_common2_receive(usb_dev, command, buf, real_size);
+ mutex_unlock(&arvo->arvo_lock);
+
+ return (retval ? retval : real_size);
+}
+
+static ssize_t arvo_sysfs_write_button(struct file *fp,
+ struct kobject *kobj, struct bin_attribute *attr, char *buf,
+ loff_t off, size_t count)
+{
+ return arvo_sysfs_write(fp, kobj, buf, off, count,
+ sizeof(struct arvo_button), ARVO_COMMAND_BUTTON);
+}
+static BIN_ATTR(button, 0220, NULL, arvo_sysfs_write_button,
+ sizeof(struct arvo_button));
+
+static ssize_t arvo_sysfs_read_info(struct file *fp,
+ struct kobject *kobj, struct bin_attribute *attr, char *buf,
+ loff_t off, size_t count)
+{
+ return arvo_sysfs_read(fp, kobj, buf, off, count,
+ sizeof(struct arvo_info), ARVO_COMMAND_INFO);
+}
+static BIN_ATTR(info, 0440, arvo_sysfs_read_info, NULL,
+ sizeof(struct arvo_info));
+
+static struct attribute *arvo_attrs[] = {
+ &dev_attr_mode_key.attr,
+ &dev_attr_key_mask.attr,
+ &dev_attr_actual_profile.attr,
+ NULL,
+};
+
+static struct bin_attribute *arvo_bin_attributes[] = {
+ &bin_attr_button,
+ &bin_attr_info,
+ NULL,
+};
+
+static const struct attribute_group arvo_group = {
+ .attrs = arvo_attrs,
+ .bin_attrs = arvo_bin_attributes,
+};
+
+static const struct attribute_group *arvo_groups[] = {
+ &arvo_group,
+ NULL,
+};
+
+static int arvo_init_arvo_device_struct(struct usb_device *usb_dev,
+ struct arvo_device *arvo)
+{
+ int retval;
+
+ mutex_init(&arvo->arvo_lock);
+
+ retval = arvo_get_actual_profile(usb_dev);
+ if (retval < 0)
+ return retval;
+ arvo->actual_profile = retval;
+
+ return 0;
+}
+
+static int arvo_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 arvo_device *arvo;
+ int retval;
+
+ if (intf->cur_altsetting->desc.bInterfaceProtocol
+ == USB_INTERFACE_PROTOCOL_KEYBOARD) {
+ hid_set_drvdata(hdev, NULL);
+ return 0;
+ }
+
+ arvo = kzalloc(sizeof(*arvo), GFP_KERNEL);
+ if (!arvo) {
+ hid_err(hdev, "can't alloc device descriptor\n");
+ return -ENOMEM;
+ }
+ hid_set_drvdata(hdev, arvo);
+
+ retval = arvo_init_arvo_device_struct(usb_dev, arvo);
+ if (retval) {
+ hid_err(hdev, "couldn't init struct arvo_device\n");
+ goto exit_free;
+ }
+
+ retval = roccat_connect(arvo_class, hdev,
+ sizeof(struct arvo_roccat_report));
+ if (retval < 0) {
+ hid_err(hdev, "couldn't init char dev\n");
+ } else {
+ arvo->chrdev_minor = retval;
+ arvo->roccat_claimed = 1;
+ }
+
+ return 0;
+exit_free:
+ kfree(arvo);
+ return retval;
+}
+
+static void arvo_remove_specials(struct hid_device *hdev)
+{
+ struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+ struct arvo_device *arvo;
+
+ if (intf->cur_altsetting->desc.bInterfaceProtocol
+ == USB_INTERFACE_PROTOCOL_KEYBOARD)
+ return;
+
+ arvo = hid_get_drvdata(hdev);
+ if (arvo->roccat_claimed)
+ roccat_disconnect(arvo->chrdev_minor);
+ kfree(arvo);
+}
+
+static int arvo_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 = arvo_init_specials(hdev);
+ if (retval) {
+ hid_err(hdev, "couldn't install keyboard\n");
+ goto exit_stop;
+ }
+
+ return 0;
+
+exit_stop:
+ hid_hw_stop(hdev);
+exit:
+ return retval;
+}
+
+static void arvo_remove(struct hid_device *hdev)
+{
+ arvo_remove_specials(hdev);
+ hid_hw_stop(hdev);
+}
+
+static void arvo_report_to_chrdev(struct arvo_device const *arvo,
+ u8 const *data)
+{
+ struct arvo_special_report const *special_report;
+ struct arvo_roccat_report roccat_report;
+
+ special_report = (struct arvo_special_report const *)data;
+
+ roccat_report.profile = arvo->actual_profile;
+ roccat_report.button = special_report->event &
+ ARVO_SPECIAL_REPORT_EVENT_MASK_BUTTON;
+ if ((special_report->event & ARVO_SPECIAL_REPORT_EVENT_MASK_ACTION) ==
+ ARVO_SPECIAL_REPORT_EVENT_ACTION_PRESS)
+ roccat_report.action = ARVO_ROCCAT_REPORT_ACTION_PRESS;
+ else
+ roccat_report.action = ARVO_ROCCAT_REPORT_ACTION_RELEASE;
+
+ roccat_report_event(arvo->chrdev_minor,
+ (uint8_t const *)&roccat_report);
+}
+
+static int arvo_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *data, int size)
+{
+ struct arvo_device *arvo = hid_get_drvdata(hdev);
+
+ if (size != 3)
+ return 0;
+
+ if (arvo && arvo->roccat_claimed)
+ arvo_report_to_chrdev(arvo, data);
+
+ return 0;
+}
+
+static const struct hid_device_id arvo_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
+ { }
+};
+
+MODULE_DEVICE_TABLE(hid, arvo_devices);
+
+static struct hid_driver arvo_driver = {
+ .name = "arvo",
+ .id_table = arvo_devices,
+ .probe = arvo_probe,
+ .remove = arvo_remove,
+ .raw_event = arvo_raw_event
+};
+
+static int __init arvo_init(void)
+{
+ int retval;
+
+ arvo_class = class_create(THIS_MODULE, "arvo");
+ if (IS_ERR(arvo_class))
+ return PTR_ERR(arvo_class);
+ arvo_class->dev_groups = arvo_groups;
+
+ retval = hid_register_driver(&arvo_driver);
+ if (retval)
+ class_destroy(arvo_class);
+ return retval;
+}
+
+static void __exit arvo_exit(void)
+{
+ hid_unregister_driver(&arvo_driver);
+ class_destroy(arvo_class);
+}
+
+module_init(arvo_init);
+module_exit(arvo_exit);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Arvo driver");
+MODULE_LICENSE("GPL v2");