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 { \ 98 .attr = { .name = #thingy, .mode = 0660 }, \ 99 .size = KONEPURE_SIZE_ ## THINGY, \ 100 .read = konepure_sysfs_read_ ## thingy, \ 101 .write = konepure_sysfs_write_ ## thingy \ 102 } 103 104 #define KONEPURE_BIN_ATTRIBUTE_R(thingy, THINGY) \ 105 { \ 106 .attr = { .name = #thingy, .mode = 0440 }, \ 107 .size = KONEPURE_SIZE_ ## THINGY, \ 108 .read = konepure_sysfs_read_ ## thingy, \ 109 } 110 111 #define KONEPURE_BIN_ATTRIBUTE_W(thingy, THINGY) \ 112 { \ 113 .attr = { .name = #thingy, .mode = 0220 }, \ 114 .size = KONEPURE_SIZE_ ## THINGY, \ 115 .write = konepure_sysfs_write_ ## thingy \ 116 } 117 118 KONEPURE_SYSFS_RW(actual_profile, ACTUAL_PROFILE) 119 KONEPURE_SYSFS_W(control, CONTROL) 120 KONEPURE_SYSFS_RW(info, INFO) 121 KONEPURE_SYSFS_W(talk, TALK) 122 KONEPURE_SYSFS_W(macro, MACRO) 123 KONEPURE_SYSFS_RW(sensor, SENSOR) 124 KONEPURE_SYSFS_RW(tcu, TCU) 125 KONEPURE_SYSFS_R(tcu_image, TCU_IMAGE) 126 KONEPURE_SYSFS_RW(profile_settings, PROFILE_SETTINGS) 127 KONEPURE_SYSFS_RW(profile_buttons, PROFILE_BUTTONS) 128 129 static struct bin_attribute konepure_bin_attributes[] = { 130 KONEPURE_BIN_ATTRIBUTE_RW(actual_profile, ACTUAL_PROFILE), 131 KONEPURE_BIN_ATTRIBUTE_W(control, CONTROL), 132 KONEPURE_BIN_ATTRIBUTE_RW(info, INFO), 133 KONEPURE_BIN_ATTRIBUTE_W(talk, TALK), 134 KONEPURE_BIN_ATTRIBUTE_W(macro, MACRO), 135 KONEPURE_BIN_ATTRIBUTE_RW(sensor, SENSOR), 136 KONEPURE_BIN_ATTRIBUTE_RW(tcu, TCU), 137 KONEPURE_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE), 138 KONEPURE_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS), 139 KONEPURE_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS), 140 __ATTR_NULL 141 }; 142 143 static int konepure_init_konepure_device_struct(struct usb_device *usb_dev, 144 struct konepure_device *konepure) 145 { 146 mutex_init(&konepure->konepure_lock); 147 148 return 0; 149 } 150 151 static int konepure_init_specials(struct hid_device *hdev) 152 { 153 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 154 struct usb_device *usb_dev = interface_to_usbdev(intf); 155 struct konepure_device *konepure; 156 int retval; 157 158 if (intf->cur_altsetting->desc.bInterfaceProtocol 159 != USB_INTERFACE_PROTOCOL_MOUSE) { 160 hid_set_drvdata(hdev, NULL); 161 return 0; 162 } 163 164 konepure = kzalloc(sizeof(*konepure), GFP_KERNEL); 165 if (!konepure) { 166 hid_err(hdev, "can't alloc device descriptor\n"); 167 return -ENOMEM; 168 } 169 hid_set_drvdata(hdev, konepure); 170 171 retval = konepure_init_konepure_device_struct(usb_dev, konepure); 172 if (retval) { 173 hid_err(hdev, "couldn't init struct konepure_device\n"); 174 goto exit_free; 175 } 176 177 retval = roccat_connect(konepure_class, hdev, 178 sizeof(struct konepure_mouse_report_button)); 179 if (retval < 0) { 180 hid_err(hdev, "couldn't init char dev\n"); 181 } else { 182 konepure->chrdev_minor = retval; 183 konepure->roccat_claimed = 1; 184 } 185 186 return 0; 187 exit_free: 188 kfree(konepure); 189 return retval; 190 } 191 192 static void konepure_remove_specials(struct hid_device *hdev) 193 { 194 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 195 struct konepure_device *konepure; 196 197 if (intf->cur_altsetting->desc.bInterfaceProtocol 198 != USB_INTERFACE_PROTOCOL_MOUSE) 199 return; 200 201 konepure = hid_get_drvdata(hdev); 202 if (konepure->roccat_claimed) 203 roccat_disconnect(konepure->chrdev_minor); 204 kfree(konepure); 205 } 206 207 static int konepure_probe(struct hid_device *hdev, 208 const struct hid_device_id *id) 209 { 210 int retval; 211 212 retval = hid_parse(hdev); 213 if (retval) { 214 hid_err(hdev, "parse failed\n"); 215 goto exit; 216 } 217 218 retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 219 if (retval) { 220 hid_err(hdev, "hw start failed\n"); 221 goto exit; 222 } 223 224 retval = konepure_init_specials(hdev); 225 if (retval) { 226 hid_err(hdev, "couldn't install mouse\n"); 227 goto exit_stop; 228 } 229 230 return 0; 231 232 exit_stop: 233 hid_hw_stop(hdev); 234 exit: 235 return retval; 236 } 237 238 static void konepure_remove(struct hid_device *hdev) 239 { 240 konepure_remove_specials(hdev); 241 hid_hw_stop(hdev); 242 } 243 244 static int konepure_raw_event(struct hid_device *hdev, 245 struct hid_report *report, u8 *data, int size) 246 { 247 struct usb_interface *intf = to_usb_interface(hdev->dev.parent); 248 struct konepure_device *konepure = hid_get_drvdata(hdev); 249 250 if (intf->cur_altsetting->desc.bInterfaceProtocol 251 != USB_INTERFACE_PROTOCOL_MOUSE) 252 return 0; 253 254 if (data[0] != KONEPURE_MOUSE_REPORT_NUMBER_BUTTON) 255 return 0; 256 257 if (konepure != NULL && konepure->roccat_claimed) 258 roccat_report_event(konepure->chrdev_minor, data); 259 260 return 0; 261 } 262 263 static const struct hid_device_id konepure_devices[] = { 264 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) }, 265 { } 266 }; 267 268 MODULE_DEVICE_TABLE(hid, konepure_devices); 269 270 static struct hid_driver konepure_driver = { 271 .name = "konepure", 272 .id_table = konepure_devices, 273 .probe = konepure_probe, 274 .remove = konepure_remove, 275 .raw_event = konepure_raw_event 276 }; 277 278 static int __init konepure_init(void) 279 { 280 int retval; 281 282 konepure_class = class_create(THIS_MODULE, "konepure"); 283 if (IS_ERR(konepure_class)) 284 return PTR_ERR(konepure_class); 285 konepure_class->dev_bin_attrs = konepure_bin_attributes; 286 287 retval = hid_register_driver(&konepure_driver); 288 if (retval) 289 class_destroy(konepure_class); 290 return retval; 291 } 292 293 static void __exit konepure_exit(void) 294 { 295 hid_unregister_driver(&konepure_driver); 296 class_destroy(konepure_class); 297 } 298 299 module_init(konepure_init); 300 module_exit(konepure_exit); 301 302 MODULE_AUTHOR("Stefan Achatz"); 303 MODULE_DESCRIPTION("USB Roccat KonePure driver"); 304 MODULE_LICENSE("GPL v2"); 305