--- /dev/null
+/*
+ * Roccat Isku 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 Isku is a gamer keyboard with 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-isku.h"
+
+static struct class *isku_class;
+
+static void isku_profile_activated(struct isku_device *isku, uint new_profile)
+{
+ isku->actual_profile = new_profile;
+}
+
+static int isku_receive(struct usb_device *usb_dev, uint command,
+ void *buf, uint size)
+{
+ return roccat_common2_receive(usb_dev, command, buf, size);
+}
+
+static int isku_get_actual_profile(struct usb_device *usb_dev)
+{
+ struct isku_actual_profile buf;
+ int retval;
+
+ retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
+ &buf, sizeof(struct isku_actual_profile));
+ return retval ? retval : buf.actual_profile;
+}
+
+static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
+{
+ struct isku_actual_profile buf;
+
+ buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
+ buf.size = sizeof(struct isku_actual_profile);
+ buf.actual_profile = new_profile;
+ return roccat_common2_send_with_status(usb_dev,
+ ISKU_COMMAND_ACTUAL_PROFILE, &buf,
+ sizeof(struct isku_actual_profile));
+}
+
+static ssize_t isku_sysfs_show_actual_profile(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct isku_device *isku =
+ hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+ return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile);
+}
+
+static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
+ struct device_attribute *attr, char const *buf, size_t size)
+{
+ struct isku_device *isku;
+ struct usb_device *usb_dev;
+ unsigned long profile;
+ int retval;
+ struct isku_roccat_report roccat_report;
+
+ dev = dev->parent->parent;
+ isku = hid_get_drvdata(dev_get_drvdata(dev));
+ usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
+ retval = kstrtoul(buf, 10, &profile);
+ if (retval)
+ return retval;
+
+ if (profile > 4)
+ return -EINVAL;
+
+ mutex_lock(&isku->isku_lock);
+
+ retval = isku_set_actual_profile(usb_dev, profile);
+ if (retval) {
+ mutex_unlock(&isku->isku_lock);
+ return retval;
+ }
+
+ isku_profile_activated(isku, profile);
+
+ roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
+ roccat_report.data1 = profile + 1;
+ roccat_report.data2 = 0;
+ roccat_report.profile = profile + 1;
+ roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);
+
+ mutex_unlock(&isku->isku_lock);
+
+ return size;
+}
+static DEVICE_ATTR(actual_profile, 0660, isku_sysfs_show_actual_profile,
+ isku_sysfs_set_actual_profile);
+
+static struct attribute *isku_attrs[] = {
+ &dev_attr_actual_profile.attr,
+ NULL,
+};
+
+static ssize_t isku_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 isku_device *isku = 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(&isku->isku_lock);
+ retval = isku_receive(usb_dev, command, buf, count);
+ mutex_unlock(&isku->isku_lock);
+
+ return retval ? retval : count;
+}
+
+static ssize_t isku_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 isku_device *isku = 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(&isku->isku_lock);
+ retval = roccat_common2_send_with_status(usb_dev, command,
+ (void *)buf, count);
+ mutex_unlock(&isku->isku_lock);
+
+ return retval ? retval : count;
+}
+
+#define ISKU_SYSFS_W(thingy, THINGY) \
+static ssize_t isku_sysfs_write_ ## thingy(struct file *fp, struct kobject *kobj, \
+ struct bin_attribute *attr, char *buf, \
+ loff_t off, size_t count) \
+{ \
+ return isku_sysfs_write(fp, kobj, buf, off, count, \
+ ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
+}
+
+#define ISKU_SYSFS_R(thingy, THINGY) \
+static ssize_t isku_sysfs_read_ ## thingy(struct file *fp, struct kobject *kobj, \
+ struct bin_attribute *attr, char *buf, \
+ loff_t off, size_t count) \
+{ \
+ return isku_sysfs_read(fp, kobj, buf, off, count, \
+ ISKU_SIZE_ ## THINGY, ISKU_COMMAND_ ## THINGY); \
+}
+
+#define ISKU_SYSFS_RW(thingy, THINGY) \
+ISKU_SYSFS_R(thingy, THINGY) \
+ISKU_SYSFS_W(thingy, THINGY)
+
+#define ISKU_BIN_ATTR_RW(thingy, THINGY) \
+ISKU_SYSFS_RW(thingy, THINGY); \
+static struct bin_attribute bin_attr_##thingy = { \
+ .attr = { .name = #thingy, .mode = 0660 }, \
+ .size = ISKU_SIZE_ ## THINGY, \
+ .read = isku_sysfs_read_ ## thingy, \
+ .write = isku_sysfs_write_ ## thingy \
+}
+
+#define ISKU_BIN_ATTR_R(thingy, THINGY) \
+ISKU_SYSFS_R(thingy, THINGY); \
+static struct bin_attribute bin_attr_##thingy = { \
+ .attr = { .name = #thingy, .mode = 0440 }, \
+ .size = ISKU_SIZE_ ## THINGY, \
+ .read = isku_sysfs_read_ ## thingy, \
+}
+
+#define ISKU_BIN_ATTR_W(thingy, THINGY) \
+ISKU_SYSFS_W(thingy, THINGY); \
+static struct bin_attribute bin_attr_##thingy = { \
+ .attr = { .name = #thingy, .mode = 0220 }, \
+ .size = ISKU_SIZE_ ## THINGY, \
+ .write = isku_sysfs_write_ ## thingy \
+}
+
+ISKU_BIN_ATTR_RW(macro, MACRO);
+ISKU_BIN_ATTR_RW(keys_function, KEYS_FUNCTION);
+ISKU_BIN_ATTR_RW(keys_easyzone, KEYS_EASYZONE);
+ISKU_BIN_ATTR_RW(keys_media, KEYS_MEDIA);
+ISKU_BIN_ATTR_RW(keys_thumbster, KEYS_THUMBSTER);
+ISKU_BIN_ATTR_RW(keys_macro, KEYS_MACRO);
+ISKU_BIN_ATTR_RW(keys_capslock, KEYS_CAPSLOCK);
+ISKU_BIN_ATTR_RW(light, LIGHT);
+ISKU_BIN_ATTR_RW(key_mask, KEY_MASK);
+ISKU_BIN_ATTR_RW(last_set, LAST_SET);
+ISKU_BIN_ATTR_W(talk, TALK);
+ISKU_BIN_ATTR_W(talkfx, TALKFX);
+ISKU_BIN_ATTR_W(control, CONTROL);
+ISKU_BIN_ATTR_W(reset, RESET);
+ISKU_BIN_ATTR_R(info, INFO);
+
+static struct bin_attribute *isku_bin_attributes[] = {
+ &bin_attr_macro,
+ &bin_attr_keys_function,
+ &bin_attr_keys_easyzone,
+ &bin_attr_keys_media,
+ &bin_attr_keys_thumbster,
+ &bin_attr_keys_macro,
+ &bin_attr_keys_capslock,
+ &bin_attr_light,
+ &bin_attr_key_mask,
+ &bin_attr_last_set,
+ &bin_attr_talk,
+ &bin_attr_talkfx,
+ &bin_attr_control,
+ &bin_attr_reset,
+ &bin_attr_info,
+ NULL,
+};
+
+static const struct attribute_group isku_group = {
+ .attrs = isku_attrs,
+ .bin_attrs = isku_bin_attributes,
+};
+
+static const struct attribute_group *isku_groups[] = {
+ &isku_group,
+ NULL,
+};
+
+static int isku_init_isku_device_struct(struct usb_device *usb_dev,
+ struct isku_device *isku)
+{
+ int retval;
+
+ mutex_init(&isku->isku_lock);
+
+ retval = isku_get_actual_profile(usb_dev);
+ if (retval < 0)
+ return retval;
+ isku_profile_activated(isku, retval);
+
+ return 0;
+}
+
+static int isku_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 isku_device *isku;
+ int retval;
+
+ if (intf->cur_altsetting->desc.bInterfaceProtocol
+ != ISKU_USB_INTERFACE_PROTOCOL) {
+ hid_set_drvdata(hdev, NULL);
+ return 0;
+ }
+
+ isku = kzalloc(sizeof(*isku), GFP_KERNEL);
+ if (!isku) {
+ hid_err(hdev, "can't alloc device descriptor\n");
+ return -ENOMEM;
+ }
+ hid_set_drvdata(hdev, isku);
+
+ retval = isku_init_isku_device_struct(usb_dev, isku);
+ if (retval) {
+ hid_err(hdev, "couldn't init struct isku_device\n");
+ goto exit_free;
+ }
+
+ retval = roccat_connect(isku_class, hdev,
+ sizeof(struct isku_roccat_report));
+ if (retval < 0) {
+ hid_err(hdev, "couldn't init char dev\n");
+ } else {
+ isku->chrdev_minor = retval;
+ isku->roccat_claimed = 1;
+ }
+
+ return 0;
+exit_free:
+ kfree(isku);
+ return retval;
+}
+
+static void isku_remove_specials(struct hid_device *hdev)
+{
+ struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+ struct isku_device *isku;
+
+ if (intf->cur_altsetting->desc.bInterfaceProtocol
+ != ISKU_USB_INTERFACE_PROTOCOL)
+ return;
+
+ isku = hid_get_drvdata(hdev);
+ if (isku->roccat_claimed)
+ roccat_disconnect(isku->chrdev_minor);
+ kfree(isku);
+}
+
+static int isku_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 = isku_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 isku_remove(struct hid_device *hdev)
+{
+ isku_remove_specials(hdev);
+ hid_hw_stop(hdev);
+}
+
+static void isku_keep_values_up_to_date(struct isku_device *isku,
+ u8 const *data)
+{
+ struct isku_report_button const *button_report;
+
+ switch (data[0]) {
+ case ISKU_REPORT_NUMBER_BUTTON:
+ button_report = (struct isku_report_button const *)data;
+ switch (button_report->event) {
+ case ISKU_REPORT_BUTTON_EVENT_PROFILE:
+ isku_profile_activated(isku, button_report->data1 - 1);
+ break;
+ }
+ break;
+ }
+}
+
+static void isku_report_to_chrdev(struct isku_device const *isku,
+ u8 const *data)
+{
+ struct isku_roccat_report roccat_report;
+ struct isku_report_button const *button_report;
+
+ if (data[0] != ISKU_REPORT_NUMBER_BUTTON)
+ return;
+
+ button_report = (struct isku_report_button const *)data;
+
+ roccat_report.event = button_report->event;
+ roccat_report.data1 = button_report->data1;
+ roccat_report.data2 = button_report->data2;
+ roccat_report.profile = isku->actual_profile + 1;
+ roccat_report_event(isku->chrdev_minor,
+ (uint8_t const *)&roccat_report);
+}
+
+static int isku_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 isku_device *isku = hid_get_drvdata(hdev);
+
+ if (intf->cur_altsetting->desc.bInterfaceProtocol
+ != ISKU_USB_INTERFACE_PROTOCOL)
+ return 0;
+
+ if (isku == NULL)
+ return 0;
+
+ isku_keep_values_up_to_date(isku, data);
+
+ if (isku->roccat_claimed)
+ isku_report_to_chrdev(isku, data);
+
+ return 0;
+}
+
+static const struct hid_device_id isku_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
+ { }
+};
+
+MODULE_DEVICE_TABLE(hid, isku_devices);
+
+static struct hid_driver isku_driver = {
+ .name = "isku",
+ .id_table = isku_devices,
+ .probe = isku_probe,
+ .remove = isku_remove,
+ .raw_event = isku_raw_event
+};
+
+static int __init isku_init(void)
+{
+ int retval;
+ isku_class = class_create(THIS_MODULE, "isku");
+ if (IS_ERR(isku_class))
+ return PTR_ERR(isku_class);
+ isku_class->dev_groups = isku_groups;
+
+ retval = hid_register_driver(&isku_driver);
+ if (retval)
+ class_destroy(isku_class);
+ return retval;
+}
+
+static void __exit isku_exit(void)
+{
+ hid_unregister_driver(&isku_driver);
+ class_destroy(isku_class);
+}
+
+module_init(isku_init);
+module_exit(isku_exit);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Isku/FX driver");
+MODULE_LICENSE("GPL v2");
Code Review / kvmfornfv.git / blobdiff