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/device.h> 19 #include <linux/input.h> 20 #include <linux/hid.h> 21 #include <linux/module.h> 22 #include <linux/slab.h> 23 #include <linux/hid-roccat.h> 24 #include "hid-ids.h" 25 #include "hid-roccat-common.h" 26 #include "hid-roccat-konepure.h" 27 28 static struct class *konepure_class; 29 30 static ssize_t konepure_sysfs_read(struct file *fp, struct kobject *kobj, 31 char *buf, loff_t off, size_t count, 32 size_t real_size, uint command) 33 { 34 struct device *dev = 35 container_of(kobj, struct device, kobj)->parent->parent; 36 struct konepure_device *konepure = hid_get_drvdata(dev_get_drvdata(dev)); 37 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); 38 int retval; 39 40 if (off >= real_size) 41 return 0; 42 43 if (off != 0 || count != real_size) 44 return -EINVAL; 45 46 mutex_lock(&konepure->konepure_lock); 47 retval = roccat_common2_receive(usb_dev, command, buf, real_size); 48 mutex_unlock(&konepure->konepure_lock); 49 50 return retval ? retval : real_size; 51 } 52 53 static ssize_t konepure_sysfs_write(struct file *fp, struct kobject *kobj, 54 void const *buf, loff_t off, size_t count, 55 size_t real_size, uint command) 56 { 57 struct device *dev = 58 container_of(kobj, struct device, kobj)->parent->parent; 59 struct konepure_device *konepure = hid_get_drvdata(dev_get_drvdata(dev)); 60 struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); 61 int retval; 62 63 if (off != 0 || count != real_size) 64 return -EINVAL; 65 66 mutex_lock(&konepure->konepure_lock); 67 retval = roccat_common2_send_with_status(usb_dev, command, 68 (void *)buf, real_size); 69 mutex_unlock(&konepure->konepure_lock); 70 71 return retval ? retval : real_size; 72 } 73 74 #define KONEPURE_SYSFS_W(thingy, THINGY) \ 75 static ssize_t konepure_sysfs_write_ ## thingy(struct file *fp, \ 76 struct kobject *kobj, struct bin_attribute *attr, char *buf, \ 77 loff_t off, size_t count) \ 78 { \ 79 return konepure_sysfs_write(fp, kobj, buf, off, count, \ 80 KONEPURE_SIZE_ ## THINGY, KONEPURE_COMMAND_ ## THINGY); \ 81 } 82 83 #define KONEPURE_SYSFS_R(thingy, THINGY) \ 84 static ssize_t konepure_sysfs_read_ ## thingy(struct file *fp, \ 85 struct kobject *kobj, struct bin_attribute *attr, char *buf, \ 86 loff_t off, size_t count) \ 87 { \ 88 return konepure_sysfs_read(fp, kobj, buf, off, count, \ 89 KONEPURE_SIZE_ ## THINGY, KONEPURE_COMMAND_ ## THINGY); \ 90 } 91 92 #define KONEPURE_SYSFS_RW(thingy, THINGY) \ 93 KONEPURE_SYSFS_W(thingy, THINGY) \ 94 KONEPURE_SYSFS_R(thingy, THINGY) 95 96 #define KONEPURE_BIN_ATTRIBUTE_RW(thingy, THINGY) \ 97 KONEPURE_SYSFS_RW(thingy, THINGY); \ 98 static struct bin_attribute bin_attr_##thingy = { \ 99 .attr = { .name = #thingy, .mode = 0660 }, \ 100 .size = KONEPURE_SIZE_ ## THINGY, \ 101 .read = konepure_sysfs_read_ ## thingy, \ 102 .write = konepure_sysfs_write_ ## thingy \ 103 } 104 105 #define KONEPURE_BIN_ATTRIBUTE_R(thingy, THINGY) \ 106 KONEPURE_SYSFS_R(thingy, THINGY); \ 107 static struct bin_attribute bin_attr_##thingy = { \ 108 .attr = { .name = #thingy, .mode = 0440 }, \ 109 .size = KONEPURE_SIZE_ ## THINGY, \ 110 .read = konepure_sysfs_read_ ## thingy, \ 111 } 112 113 #define KONEPURE_BIN_ATTRIBUTE_W(thingy, THINGY) \ 114 KONEPURE_SYSFS_W(thingy, THINGY); \ 115 static struct bin_attribute bin_attr_##thingy = { \ 116 .attr = { .name = #thingy, .mode = 0220 }, \ 117 .size = KONEPURE_SIZE_ ## THINGY, \ 118 .write = konepure_sysfs_write_ ## thingy \ 119 } 120 121 KONEPURE_BIN_ATTRIBUTE_RW(actual_profile, ACTUAL_PROFILE); 122 KONEPURE_BIN_ATTRIBUTE_RW(info, INFO); 123 KONEPURE_BIN_ATTRIBUTE_RW(sensor, SENSOR); 124 KONEPURE_BIN_ATTRIBUTE_RW(tcu, TCU); 125 KONEPURE_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS); 126 KONEPURE_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS); 127 KONEPURE_BIN_ATTRIBUTE_W(control, CONTROL); 128 KONEPURE_BIN_ATTRIBUTE_W(talk, TALK); 129 KONEPURE_BIN_ATTRIBUTE_W(macro, MACRO); 130 KONEPURE_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE); 131 132 static struct bin_attribute *konepure_bin_attributes[] = { 133 &bin_attr_actual_profile, 134 &bin_attr_info, 135 &bin_attr_sensor, 136 &bin_attr_tcu, 137 &bin_attr_profile_settings, 138 &bin_attr_profile_buttons, 139 &bin_attr_control, 140 &bin_attr_talk, 141 &bin_attr_macro, 142 &bin_attr_tcu_image, 143 NULL, 144 }; 145 146 static const struct attribute_group konepure_group = { 147 .bin_attrs = konepure_bin_attributes, 148 }; 149 150 static const struct attribute_group *konepure_groups[] = { 151 &konepure_group, 152 NULL, 153 }; 154 155 156 static int konepure_init_konepure_device_struct(struct usb_device *usb_dev, 157 struct konepure_device *konepure) 158 { 159 mutex_init(&konepure->konepure_lock); 160 161 return 0; 162 } 163 164 static int konepure_init_specials(struct hid_device *hdev) 165 { 166 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 167 struct usb_device *usb_dev = interface_to_usbdev(intf); 168 struct konepure_device *konepure; 169 int retval; 170 171 if (intf->cur_altsetting->desc.bInterfaceProtocol 172 != USB_INTERFACE_PROTOCOL_MOUSE) { 173 hid_set_drvdata(hdev, NULL); 174 return 0; 175 } 176 177 konepure = kzalloc(sizeof(*konepure), GFP_KERNEL); 178 if (!konepure) { 179 hid_err(hdev, "can't alloc device descriptor\n"); 180 return -ENOMEM; 181 } 182 hid_set_drvdata(hdev, konepure); 183 184 retval = konepure_init_konepure_device_struct(usb_dev, konepure); 185 if (retval) { 186 hid_err(hdev, "couldn't init struct konepure_device\n"); 187 goto exit_free; 188 } 189 190 retval = roccat_connect(konepure_class, hdev, 191 sizeof(struct konepure_mouse_report_button)); 192 if (retval < 0) { 193 hid_err(hdev, "couldn't init char dev\n"); 194 } else { 195 konepure->chrdev_minor = retval; 196 konepure->roccat_claimed = 1; 197 } 198 199 return 0; 200 exit_free: 201 kfree(konepure); 202 return retval; 203 } 204 205 static void konepure_remove_specials(struct hid_device *hdev) 206 { 207 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 208 struct konepure_device *konepure; 209 210 if (intf->cur_altsetting->desc.bInterfaceProtocol 211 != USB_INTERFACE_PROTOCOL_MOUSE) 212 return; 213 214 konepure = hid_get_drvdata(hdev); 215 if (konepure->roccat_claimed) 216 roccat_disconnect(konepure->chrdev_minor); 217 kfree(konepure); 218 } 219 220 static int konepure_probe(struct hid_device *hdev, 221 const struct hid_device_id *id) 222 { 223 int retval; 224 225 retval = hid_parse(hdev); 226 if (retval) { 227 hid_err(hdev, "parse failed\n"); 228 goto exit; 229 } 230 231 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 232 if (retval) { 233 hid_err(hdev, "hw start failed\n"); 234 goto exit; 235 } 236 237 retval = konepure_init_specials(hdev); 238 if (retval) { 239 hid_err(hdev, "couldn't install mouse\n"); 240 goto exit_stop; 241 } 242 243 return 0; 244 245 exit_stop: 246 hid_hw_stop(hdev); 247 exit: 248 return retval; 249 } 250 251 static void konepure_remove(struct hid_device *hdev) 252 { 253 konepure_remove_specials(hdev); 254 hid_hw_stop(hdev); 255 } 256 257 static int konepure_raw_event(struct hid_device *hdev, 258 struct hid_report *report, u8 *data, int size) 259 { 260 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 261 struct konepure_device *konepure = hid_get_drvdata(hdev); 262 263 if (intf->cur_altsetting->desc.bInterfaceProtocol 264 != USB_INTERFACE_PROTOCOL_MOUSE) 265 return 0; 266 267 if (data[0] != KONEPURE_MOUSE_REPORT_NUMBER_BUTTON) 268 return 0; 269 270 if (konepure != NULL && konepure->roccat_claimed) 271 roccat_report_event(konepure->chrdev_minor, data); 272 273 return 0; 274 } 275 276 static const struct hid_device_id konepure_devices[] = { 277 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) }, 278 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) }, 279 { } 280 }; 281 282 MODULE_DEVICE_TABLE(hid, konepure_devices); 283 284 static struct hid_driver konepure_driver = { 285 .name = "konepure", 286 .id_table = konepure_devices, 287 .probe = konepure_probe, 288 .remove = konepure_remove, 289 .raw_event = konepure_raw_event 290 }; 291 292 static int __init konepure_init(void) 293 { 294 int retval; 295 296 konepure_class = class_create(THIS_MODULE, "konepure"); 297 if (IS_ERR(konepure_class)) 298 return PTR_ERR(konepure_class); 299 konepure_class->dev_groups = konepure_groups; 300 301 retval = hid_register_driver(&konepure_driver); 302 if (retval) 303 class_destroy(konepure_class); 304 return retval; 305 } 306 307 static void __exit konepure_exit(void) 308 { 309 hid_unregister_driver(&konepure_driver); 310 class_destroy(konepure_class); 311 } 312 313 module_init(konepure_init); 314 module_exit(konepure_exit); 315 316 MODULE_AUTHOR("Stefan Achatz"); 317 MODULE_DESCRIPTION("USB Roccat KonePure/Optical driver"); 318 MODULE_LICENSE("GPL v2"); 319