linux/drivers/hid/hid-roccat-konepure.c
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   1/*
   2 * Roccat KonePure driver for Linux
   3 *
   4 * Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net>
   5 */
   6
   7/*
   8 * This program is free software; you can redistribute it and/or modify it
   9 * under the terms of the GNU General Public License as published by the Free
  10 * Software Foundation; either version 2 of the License, or (at your option)
  11 * any later version.
  12 */
  13
  14/*
  15 * Roccat KonePure is a smaller version of KoneXTD with less buttons and lights.
  16 */
  17
  18#include <linux/types.h>
  19#include <linux/device.h>
  20#include <linux/input.h>
  21#include <linux/hid.h>
  22#include <linux/module.h>
  23#include <linux/slab.h>
  24#include <linux/hid-roccat.h>
  25#include "hid-ids.h"
  26#include "hid-roccat-common.h"
  27
  28enum {
  29        KONEPURE_MOUSE_REPORT_NUMBER_BUTTON = 3,
  30};
  31
  32struct konepure_mouse_report_button {
  33        uint8_t report_number; /* always KONEPURE_MOUSE_REPORT_NUMBER_BUTTON */
  34        uint8_t zero;
  35        uint8_t type;
  36        uint8_t data1;
  37        uint8_t data2;
  38        uint8_t zero2;
  39        uint8_t unknown[2];
  40} __packed;
  41
  42static struct class *konepure_class;
  43
  44ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x04, 0x03);
  45ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(actual_profile, 0x05, 0x03);
  46ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_settings, 0x06, 0x1f);
  47ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_buttons, 0x07, 0x3b);
  48ROCCAT_COMMON2_BIN_ATTRIBUTE_W(macro, 0x08, 0x0822);
  49ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x09, 0x06);
  50ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(tcu, 0x0c, 0x04);
  51ROCCAT_COMMON2_BIN_ATTRIBUTE_R(tcu_image, 0x0c, 0x0404);
  52ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0x0f, 0x06);
  53ROCCAT_COMMON2_BIN_ATTRIBUTE_W(talk, 0x10, 0x10);
  54
  55static struct bin_attribute *konepure_bin_attrs[] = {
  56        &bin_attr_actual_profile,
  57        &bin_attr_control,
  58        &bin_attr_info,
  59        &bin_attr_talk,
  60        &bin_attr_macro,
  61        &bin_attr_sensor,
  62        &bin_attr_tcu,
  63        &bin_attr_tcu_image,
  64        &bin_attr_profile_settings,
  65        &bin_attr_profile_buttons,
  66        NULL,
  67};
  68
  69static const struct attribute_group konepure_group = {
  70        .bin_attrs = konepure_bin_attrs,
  71};
  72
  73static const struct attribute_group *konepure_groups[] = {
  74        &konepure_group,
  75        NULL,
  76};
  77
  78static int konepure_init_specials(struct hid_device *hdev)
  79{
  80        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
  81        struct usb_device *usb_dev = interface_to_usbdev(intf);
  82        struct roccat_common2_device *konepure;
  83        int retval;
  84
  85        if (intf->cur_altsetting->desc.bInterfaceProtocol
  86                        != USB_INTERFACE_PROTOCOL_MOUSE) {
  87                hid_set_drvdata(hdev, NULL);
  88                return 0;
  89        }
  90
  91        konepure = kzalloc(sizeof(*konepure), GFP_KERNEL);
  92        if (!konepure) {
  93                hid_err(hdev, "can't alloc device descriptor\n");
  94                return -ENOMEM;
  95        }
  96        hid_set_drvdata(hdev, konepure);
  97
  98        retval = roccat_common2_device_init_struct(usb_dev, konepure);
  99        if (retval) {
 100                hid_err(hdev, "couldn't init KonePure device\n");
 101                goto exit_free;
 102        }
 103
 104        retval = roccat_connect(konepure_class, hdev,
 105                        sizeof(struct konepure_mouse_report_button));
 106        if (retval < 0) {
 107                hid_err(hdev, "couldn't init char dev\n");
 108        } else {
 109                konepure->chrdev_minor = retval;
 110                konepure->roccat_claimed = 1;
 111        }
 112
 113        return 0;
 114exit_free:
 115        kfree(konepure);
 116        return retval;
 117}
 118
 119static void konepure_remove_specials(struct hid_device *hdev)
 120{
 121        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 122        struct roccat_common2_device *konepure;
 123
 124        if (intf->cur_altsetting->desc.bInterfaceProtocol
 125                        != USB_INTERFACE_PROTOCOL_MOUSE)
 126                return;
 127
 128        konepure = hid_get_drvdata(hdev);
 129        if (konepure->roccat_claimed)
 130                roccat_disconnect(konepure->chrdev_minor);
 131        kfree(konepure);
 132}
 133
 134static int konepure_probe(struct hid_device *hdev,
 135                const struct hid_device_id *id)
 136{
 137        int retval;
 138
 139        retval = hid_parse(hdev);
 140        if (retval) {
 141                hid_err(hdev, "parse failed\n");
 142                goto exit;
 143        }
 144
 145        retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 146        if (retval) {
 147                hid_err(hdev, "hw start failed\n");
 148                goto exit;
 149        }
 150
 151        retval = konepure_init_specials(hdev);
 152        if (retval) {
 153                hid_err(hdev, "couldn't install mouse\n");
 154                goto exit_stop;
 155        }
 156
 157        return 0;
 158
 159exit_stop:
 160        hid_hw_stop(hdev);
 161exit:
 162        return retval;
 163}
 164
 165static void konepure_remove(struct hid_device *hdev)
 166{
 167        konepure_remove_specials(hdev);
 168        hid_hw_stop(hdev);
 169}
 170
 171static int konepure_raw_event(struct hid_device *hdev,
 172                struct hid_report *report, u8 *data, int size)
 173{
 174        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 175        struct roccat_common2_device *konepure = hid_get_drvdata(hdev);
 176
 177        if (intf->cur_altsetting->desc.bInterfaceProtocol
 178                        != USB_INTERFACE_PROTOCOL_MOUSE)
 179                return 0;
 180
 181        if (data[0] != KONEPURE_MOUSE_REPORT_NUMBER_BUTTON)
 182                return 0;
 183
 184        if (konepure != NULL && konepure->roccat_claimed)
 185                roccat_report_event(konepure->chrdev_minor, data);
 186
 187        return 0;
 188}
 189
 190static const struct hid_device_id konepure_devices[] = {
 191        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
 192        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
 193        { }
 194};
 195
 196MODULE_DEVICE_TABLE(hid, konepure_devices);
 197
 198static struct hid_driver konepure_driver = {
 199                .name = "konepure",
 200                .id_table = konepure_devices,
 201                .probe = konepure_probe,
 202                .remove = konepure_remove,
 203                .raw_event = konepure_raw_event
 204};
 205
 206static int __init konepure_init(void)
 207{
 208        int retval;
 209
 210        konepure_class = class_create(THIS_MODULE, "konepure");
 211        if (IS_ERR(konepure_class))
 212                return PTR_ERR(konepure_class);
 213        konepure_class->dev_groups = konepure_groups;
 214
 215        retval = hid_register_driver(&konepure_driver);
 216        if (retval)
 217                class_destroy(konepure_class);
 218        return retval;
 219}
 220
 221static void __exit konepure_exit(void)
 222{
 223        hid_unregister_driver(&konepure_driver);
 224        class_destroy(konepure_class);
 225}
 226
 227module_init(konepure_init);
 228module_exit(konepure_exit);
 229
 230MODULE_AUTHOR("Stefan Achatz");
 231MODULE_DESCRIPTION("USB Roccat KonePure/Optical driver");
 232MODULE_LICENSE("GPL v2");
 233
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