drivers/hid/hid-roccat-konepure.c

   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
  28 enum {
  29         KONEPURE_MOUSE_REPORT_NUMBER_BUTTON = 3,
  30 };
  31
  32 struct 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
  42 static struct class *konepure_class;
  43
  44 ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x04, 0x03);
  45 ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(actual_profile, 0x05, 0x03);
  46 ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_settings, 0x06, 0x1f);
  47 ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_buttons, 0x07, 0x3b);
  48 ROCCAT_COMMON2_BIN_ATTRIBUTE_W(macro, 0x08, 0x0822);
  49 ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x09, 0x06);
  50 ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(tcu, 0x0c, 0x04);
  51 ROCCAT_COMMON2_BIN_ATTRIBUTE_R(tcu_image, 0x0c, 0x0404);
  52 ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0x0f, 0x06);
  53 ROCCAT_COMMON2_BIN_ATTRIBUTE_W(talk, 0x10, 0x10);
  54
  55 static 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
  69 static const struct attribute_group konepure_group = {
  70         .bin_attrs = konepure_bin_attrs,
  71 };
  72
  73 static const struct attribute_group *konepure_groups[] = {
  74         &konepure_group,
  75         NULL,
  76 };
  77
  78 static 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;
 114 exit_free:
 115         kfree(konepure);
 116         return retval;
 117 }
 118
 119 static 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
 134 static 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
 159 exit_stop:
 160         hid_hw_stop(hdev);
 161 exit:
 162         return retval;
 163 }
 164
 165 static void konepure_remove(struct hid_device *hdev)
 166 {
 167         konepure_remove_specials(hdev);
 168         hid_hw_stop(hdev);
 169 }
 170
 171 static 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
 190 static 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
 196 MODULE_DEVICE_TABLE(hid, konepure_devices);
 197
 198 static 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
 206 static 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
 221 static void __exit konepure_exit(void)
 222 {
 223         hid_unregister_driver(&konepure_driver);
 224         class_destroy(konepure_class);
 225 }
 226
 227 module_init(konepure_init);
 228 module_exit(konepure_exit);
 229
 230 MODULE_AUTHOR("Stefan Achatz");
 231 MODULE_DESCRIPTION("USB Roccat KonePure/Optical driver");
 232 MODULE_LICENSE("GPL v2");