linux/drivers/hid/hid-roccat-koneplus.c
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   1/*
   2 * Roccat Kone[+] driver for Linux
   3 *
   4 * Copyright (c) 2010 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 Kone[+] is an updated/improved version of the Kone with more memory
  16 * and functionality and without the non-standard behaviours the Kone had.
  17 * KoneXTD has same capabilities but updated sensor.
  18 */
  19
  20#include <linux/device.h>
  21#include <linux/input.h>
  22#include <linux/hid.h>
  23#include <linux/module.h>
  24#include <linux/slab.h>
  25#include <linux/hid-roccat.h>
  26#include "hid-ids.h"
  27#include "hid-roccat-common.h"
  28#include "hid-roccat-koneplus.h"
  29
  30static uint profile_numbers[5] = {0, 1, 2, 3, 4};
  31
  32static struct class *koneplus_class;
  33
  34static void koneplus_profile_activated(struct koneplus_device *koneplus,
  35                uint new_profile)
  36{
  37        koneplus->actual_profile = new_profile;
  38}
  39
  40static int koneplus_send_control(struct usb_device *usb_dev, uint value,
  41                enum koneplus_control_requests request)
  42{
  43        struct roccat_common2_control control;
  44
  45        if ((request == KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS ||
  46                        request == KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS) &&
  47                        value > 4)
  48                return -EINVAL;
  49
  50        control.command = ROCCAT_COMMON_COMMAND_CONTROL;
  51        control.value = value;
  52        control.request = request;
  53
  54        return roccat_common2_send_with_status(usb_dev,
  55                        ROCCAT_COMMON_COMMAND_CONTROL,
  56                        &control, sizeof(struct roccat_common2_control));
  57}
  58
  59
  60/* retval is 0-4 on success, < 0 on error */
  61static int koneplus_get_actual_profile(struct usb_device *usb_dev)
  62{
  63        struct koneplus_actual_profile buf;
  64        int retval;
  65
  66        retval = roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_ACTUAL_PROFILE,
  67                        &buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
  68
  69        return retval ? retval : buf.actual_profile;
  70}
  71
  72static int koneplus_set_actual_profile(struct usb_device *usb_dev,
  73                int new_profile)
  74{
  75        struct koneplus_actual_profile buf;
  76
  77        buf.command = KONEPLUS_COMMAND_ACTUAL_PROFILE;
  78        buf.size = KONEPLUS_SIZE_ACTUAL_PROFILE;
  79        buf.actual_profile = new_profile;
  80
  81        return roccat_common2_send_with_status(usb_dev,
  82                        KONEPLUS_COMMAND_ACTUAL_PROFILE,
  83                        &buf, KONEPLUS_SIZE_ACTUAL_PROFILE);
  84}
  85
  86static ssize_t koneplus_sysfs_read(struct file *fp, struct kobject *kobj,
  87                char *buf, loff_t off, size_t count,
  88                size_t real_size, uint command)
  89{
  90        struct device *dev =
  91                        container_of(kobj, struct device, kobj)->parent->parent;
  92        struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
  93        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
  94        int retval;
  95
  96        if (off >= real_size)
  97                return 0;
  98
  99        if (off != 0 || count != real_size)
 100                return -EINVAL;
 101
 102        mutex_lock(&koneplus->koneplus_lock);
 103        retval = roccat_common2_receive(usb_dev, command, buf, real_size);
 104        mutex_unlock(&koneplus->koneplus_lock);
 105
 106        if (retval)
 107                return retval;
 108
 109        return real_size;
 110}
 111
 112static ssize_t koneplus_sysfs_write(struct file *fp, struct kobject *kobj,
 113                void const *buf, loff_t off, size_t count,
 114                size_t real_size, uint command)
 115{
 116        struct device *dev =
 117                        container_of(kobj, struct device, kobj)->parent->parent;
 118        struct koneplus_device *koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 119        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 120        int retval;
 121
 122        if (off != 0 || count != real_size)
 123                return -EINVAL;
 124
 125        mutex_lock(&koneplus->koneplus_lock);
 126        retval = roccat_common2_send_with_status(usb_dev, command,
 127                        buf, real_size);
 128        mutex_unlock(&koneplus->koneplus_lock);
 129
 130        if (retval)
 131                return retval;
 132
 133        return real_size;
 134}
 135
 136#define KONEPLUS_SYSFS_W(thingy, THINGY) \
 137static ssize_t koneplus_sysfs_write_ ## thingy(struct file *fp, \
 138                struct kobject *kobj, struct bin_attribute *attr, char *buf, \
 139                loff_t off, size_t count) \
 140{ \
 141        return koneplus_sysfs_write(fp, kobj, buf, off, count, \
 142                        KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
 143}
 144
 145#define KONEPLUS_SYSFS_R(thingy, THINGY) \
 146static ssize_t koneplus_sysfs_read_ ## thingy(struct file *fp, \
 147                struct kobject *kobj, struct bin_attribute *attr, char *buf, \
 148                loff_t off, size_t count) \
 149{ \
 150        return koneplus_sysfs_read(fp, kobj, buf, off, count, \
 151                        KONEPLUS_SIZE_ ## THINGY, KONEPLUS_COMMAND_ ## THINGY); \
 152}
 153
 154#define KONEPLUS_SYSFS_RW(thingy, THINGY) \
 155KONEPLUS_SYSFS_W(thingy, THINGY) \
 156KONEPLUS_SYSFS_R(thingy, THINGY)
 157
 158#define KONEPLUS_BIN_ATTRIBUTE_RW(thingy, THINGY) \
 159{ \
 160        .attr = { .name = #thingy, .mode = 0660 }, \
 161        .size = KONEPLUS_SIZE_ ## THINGY, \
 162        .read = koneplus_sysfs_read_ ## thingy, \
 163        .write = koneplus_sysfs_write_ ## thingy \
 164}
 165
 166#define KONEPLUS_BIN_ATTRIBUTE_R(thingy, THINGY) \
 167{ \
 168        .attr = { .name = #thingy, .mode = 0440 }, \
 169        .size = KONEPLUS_SIZE_ ## THINGY, \
 170        .read = koneplus_sysfs_read_ ## thingy, \
 171}
 172
 173#define KONEPLUS_BIN_ATTRIBUTE_W(thingy, THINGY) \
 174{ \
 175        .attr = { .name = #thingy, .mode = 0220 }, \
 176        .size = KONEPLUS_SIZE_ ## THINGY, \
 177        .write = koneplus_sysfs_write_ ## thingy \
 178}
 179
 180KONEPLUS_SYSFS_W(control, CONTROL)
 181KONEPLUS_SYSFS_RW(info, INFO)
 182KONEPLUS_SYSFS_W(talk, TALK)
 183KONEPLUS_SYSFS_W(macro, MACRO)
 184KONEPLUS_SYSFS_RW(sensor, SENSOR)
 185KONEPLUS_SYSFS_RW(tcu, TCU)
 186KONEPLUS_SYSFS_R(tcu_image, TCU_IMAGE)
 187KONEPLUS_SYSFS_RW(profile_settings, PROFILE_SETTINGS)
 188KONEPLUS_SYSFS_RW(profile_buttons, PROFILE_BUTTONS)
 189
 190static ssize_t koneplus_sysfs_read_profilex_settings(struct file *fp,
 191                struct kobject *kobj, struct bin_attribute *attr, char *buf,
 192                loff_t off, size_t count)
 193{
 194        struct device *dev =
 195                        container_of(kobj, struct device, kobj)->parent->parent;
 196        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 197        ssize_t retval;
 198
 199        retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
 200                        KONEPLUS_CONTROL_REQUEST_PROFILE_SETTINGS);
 201        if (retval)
 202                return retval;
 203
 204        return koneplus_sysfs_read(fp, kobj, buf, off, count,
 205                        KONEPLUS_SIZE_PROFILE_SETTINGS,
 206                        KONEPLUS_COMMAND_PROFILE_SETTINGS);
 207}
 208
 209static ssize_t koneplus_sysfs_read_profilex_buttons(struct file *fp,
 210                struct kobject *kobj, struct bin_attribute *attr, char *buf,
 211                loff_t off, size_t count)
 212{
 213        struct device *dev =
 214                        container_of(kobj, struct device, kobj)->parent->parent;
 215        struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
 216        ssize_t retval;
 217
 218        retval = koneplus_send_control(usb_dev, *(uint *)(attr->private),
 219                        KONEPLUS_CONTROL_REQUEST_PROFILE_BUTTONS);
 220        if (retval)
 221                return retval;
 222
 223        return koneplus_sysfs_read(fp, kobj, buf, off, count,
 224                        KONEPLUS_SIZE_PROFILE_BUTTONS,
 225                        KONEPLUS_COMMAND_PROFILE_BUTTONS);
 226}
 227
 228static ssize_t koneplus_sysfs_show_actual_profile(struct device *dev,
 229                struct device_attribute *attr, char *buf)
 230{
 231        struct koneplus_device *koneplus =
 232                        hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
 233        return snprintf(buf, PAGE_SIZE, "%d\n", koneplus->actual_profile);
 234}
 235
 236static ssize_t koneplus_sysfs_set_actual_profile(struct device *dev,
 237                struct device_attribute *attr, char const *buf, size_t size)
 238{
 239        struct koneplus_device *koneplus;
 240        struct usb_device *usb_dev;
 241        unsigned long profile;
 242        int retval;
 243        struct koneplus_roccat_report roccat_report;
 244
 245        dev = dev->parent->parent;
 246        koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 247        usb_dev = interface_to_usbdev(to_usb_interface(dev));
 248
 249        retval = strict_strtoul(buf, 10, &profile);
 250        if (retval)
 251                return retval;
 252
 253        if (profile > 4)
 254                return -EINVAL;
 255
 256        mutex_lock(&koneplus->koneplus_lock);
 257
 258        retval = koneplus_set_actual_profile(usb_dev, profile);
 259        if (retval) {
 260                mutex_unlock(&koneplus->koneplus_lock);
 261                return retval;
 262        }
 263
 264        koneplus_profile_activated(koneplus, profile);
 265
 266        roccat_report.type = KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE;
 267        roccat_report.data1 = profile + 1;
 268        roccat_report.data2 = 0;
 269        roccat_report.profile = profile + 1;
 270        roccat_report_event(koneplus->chrdev_minor,
 271                        (uint8_t const *)&roccat_report);
 272
 273        mutex_unlock(&koneplus->koneplus_lock);
 274
 275        return size;
 276}
 277
 278static ssize_t koneplus_sysfs_show_firmware_version(struct device *dev,
 279                struct device_attribute *attr, char *buf)
 280{
 281        struct koneplus_device *koneplus;
 282        struct usb_device *usb_dev;
 283        struct koneplus_info info;
 284
 285        dev = dev->parent->parent;
 286        koneplus = hid_get_drvdata(dev_get_drvdata(dev));
 287        usb_dev = interface_to_usbdev(to_usb_interface(dev));
 288
 289        mutex_lock(&koneplus->koneplus_lock);
 290        roccat_common2_receive(usb_dev, KONEPLUS_COMMAND_INFO,
 291                        &info, KONEPLUS_SIZE_INFO);
 292        mutex_unlock(&koneplus->koneplus_lock);
 293
 294        return snprintf(buf, PAGE_SIZE, "%d\n", info.firmware_version);
 295}
 296
 297static struct device_attribute koneplus_attributes[] = {
 298        __ATTR(actual_profile, 0660,
 299                        koneplus_sysfs_show_actual_profile,
 300                        koneplus_sysfs_set_actual_profile),
 301        __ATTR(startup_profile, 0660,
 302                        koneplus_sysfs_show_actual_profile,
 303                        koneplus_sysfs_set_actual_profile),
 304        __ATTR(firmware_version, 0440,
 305                        koneplus_sysfs_show_firmware_version, NULL),
 306        __ATTR_NULL
 307};
 308
 309static struct bin_attribute koneplus_bin_attributes[] = {
 310        KONEPLUS_BIN_ATTRIBUTE_W(control, CONTROL),
 311        KONEPLUS_BIN_ATTRIBUTE_RW(info, INFO),
 312        KONEPLUS_BIN_ATTRIBUTE_W(talk, TALK),
 313        KONEPLUS_BIN_ATTRIBUTE_W(macro, MACRO),
 314        KONEPLUS_BIN_ATTRIBUTE_RW(sensor, SENSOR),
 315        KONEPLUS_BIN_ATTRIBUTE_RW(tcu, TCU),
 316        KONEPLUS_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE),
 317        KONEPLUS_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS),
 318        KONEPLUS_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS),
 319        {
 320                .attr = { .name = "profile1_settings", .mode = 0440 },
 321                .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 322                .read = koneplus_sysfs_read_profilex_settings,
 323                .private = &profile_numbers[0]
 324        },
 325        {
 326                .attr = { .name = "profile2_settings", .mode = 0440 },
 327                .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 328                .read = koneplus_sysfs_read_profilex_settings,
 329                .private = &profile_numbers[1]
 330        },
 331        {
 332                .attr = { .name = "profile3_settings", .mode = 0440 },
 333                .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 334                .read = koneplus_sysfs_read_profilex_settings,
 335                .private = &profile_numbers[2]
 336        },
 337        {
 338                .attr = { .name = "profile4_settings", .mode = 0440 },
 339                .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 340                .read = koneplus_sysfs_read_profilex_settings,
 341                .private = &profile_numbers[3]
 342        },
 343        {
 344                .attr = { .name = "profile5_settings", .mode = 0440 },
 345                .size = KONEPLUS_SIZE_PROFILE_SETTINGS,
 346                .read = koneplus_sysfs_read_profilex_settings,
 347                .private = &profile_numbers[4]
 348        },
 349        {
 350                .attr = { .name = "profile1_buttons", .mode = 0440 },
 351                .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 352                .read = koneplus_sysfs_read_profilex_buttons,
 353                .private = &profile_numbers[0]
 354        },
 355        {
 356                .attr = { .name = "profile2_buttons", .mode = 0440 },
 357                .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 358                .read = koneplus_sysfs_read_profilex_buttons,
 359                .private = &profile_numbers[1]
 360        },
 361        {
 362                .attr = { .name = "profile3_buttons", .mode = 0440 },
 363                .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 364                .read = koneplus_sysfs_read_profilex_buttons,
 365                .private = &profile_numbers[2]
 366        },
 367        {
 368                .attr = { .name = "profile4_buttons", .mode = 0440 },
 369                .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 370                .read = koneplus_sysfs_read_profilex_buttons,
 371                .private = &profile_numbers[3]
 372        },
 373        {
 374                .attr = { .name = "profile5_buttons", .mode = 0440 },
 375                .size = KONEPLUS_SIZE_PROFILE_BUTTONS,
 376                .read = koneplus_sysfs_read_profilex_buttons,
 377                .private = &profile_numbers[4]
 378        },
 379        __ATTR_NULL
 380};
 381
 382static int koneplus_init_koneplus_device_struct(struct usb_device *usb_dev,
 383                struct koneplus_device *koneplus)
 384{
 385        int retval;
 386
 387        mutex_init(&koneplus->koneplus_lock);
 388
 389        retval = koneplus_get_actual_profile(usb_dev);
 390        if (retval < 0)
 391                return retval;
 392        koneplus_profile_activated(koneplus, retval);
 393
 394        return 0;
 395}
 396
 397static int koneplus_init_specials(struct hid_device *hdev)
 398{
 399        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 400        struct usb_device *usb_dev = interface_to_usbdev(intf);
 401        struct koneplus_device *koneplus;
 402        int retval;
 403
 404        if (intf->cur_altsetting->desc.bInterfaceProtocol
 405                        == USB_INTERFACE_PROTOCOL_MOUSE) {
 406
 407                koneplus = kzalloc(sizeof(*koneplus), GFP_KERNEL);
 408                if (!koneplus) {
 409                        hid_err(hdev, "can't alloc device descriptor\n");
 410                        return -ENOMEM;
 411                }
 412                hid_set_drvdata(hdev, koneplus);
 413
 414                retval = koneplus_init_koneplus_device_struct(usb_dev, koneplus);
 415                if (retval) {
 416                        hid_err(hdev, "couldn't init struct koneplus_device\n");
 417                        goto exit_free;
 418                }
 419
 420                retval = roccat_connect(koneplus_class, hdev,
 421                                sizeof(struct koneplus_roccat_report));
 422                if (retval < 0) {
 423                        hid_err(hdev, "couldn't init char dev\n");
 424                } else {
 425                        koneplus->chrdev_minor = retval;
 426                        koneplus->roccat_claimed = 1;
 427                }
 428        } else {
 429                hid_set_drvdata(hdev, NULL);
 430        }
 431
 432        return 0;
 433exit_free:
 434        kfree(koneplus);
 435        return retval;
 436}
 437
 438static void koneplus_remove_specials(struct hid_device *hdev)
 439{
 440        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 441        struct koneplus_device *koneplus;
 442
 443        if (intf->cur_altsetting->desc.bInterfaceProtocol
 444                        == USB_INTERFACE_PROTOCOL_MOUSE) {
 445                koneplus = hid_get_drvdata(hdev);
 446                if (koneplus->roccat_claimed)
 447                        roccat_disconnect(koneplus->chrdev_minor);
 448                kfree(koneplus);
 449        }
 450}
 451
 452static int koneplus_probe(struct hid_device *hdev,
 453                const struct hid_device_id *id)
 454{
 455        int retval;
 456
 457        retval = hid_parse(hdev);
 458        if (retval) {
 459                hid_err(hdev, "parse failed\n");
 460                goto exit;
 461        }
 462
 463        retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
 464        if (retval) {
 465                hid_err(hdev, "hw start failed\n");
 466                goto exit;
 467        }
 468
 469        retval = koneplus_init_specials(hdev);
 470        if (retval) {
 471                hid_err(hdev, "couldn't install mouse\n");
 472                goto exit_stop;
 473        }
 474
 475        return 0;
 476
 477exit_stop:
 478        hid_hw_stop(hdev);
 479exit:
 480        return retval;
 481}
 482
 483static void koneplus_remove(struct hid_device *hdev)
 484{
 485        koneplus_remove_specials(hdev);
 486        hid_hw_stop(hdev);
 487}
 488
 489static void koneplus_keep_values_up_to_date(struct koneplus_device *koneplus,
 490                u8 const *data)
 491{
 492        struct koneplus_mouse_report_button const *button_report;
 493
 494        switch (data[0]) {
 495        case KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON:
 496                button_report = (struct koneplus_mouse_report_button const *)data;
 497                switch (button_report->type) {
 498                case KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_PROFILE:
 499                        koneplus_profile_activated(koneplus, button_report->data1 - 1);
 500                        break;
 501                }
 502                break;
 503        }
 504}
 505
 506static void koneplus_report_to_chrdev(struct koneplus_device const *koneplus,
 507                u8 const *data)
 508{
 509        struct koneplus_roccat_report roccat_report;
 510        struct koneplus_mouse_report_button const *button_report;
 511
 512        if (data[0] != KONEPLUS_MOUSE_REPORT_NUMBER_BUTTON)
 513                return;
 514
 515        button_report = (struct koneplus_mouse_report_button const *)data;
 516
 517        if ((button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH ||
 518                        button_report->type == KONEPLUS_MOUSE_REPORT_BUTTON_TYPE_TIMER) &&
 519                        button_report->data2 != KONEPLUS_MOUSE_REPORT_BUTTON_ACTION_PRESS)
 520                return;
 521
 522        roccat_report.type = button_report->type;
 523        roccat_report.data1 = button_report->data1;
 524        roccat_report.data2 = button_report->data2;
 525        roccat_report.profile = koneplus->actual_profile + 1;
 526        roccat_report_event(koneplus->chrdev_minor,
 527                        (uint8_t const *)&roccat_report);
 528}
 529
 530static int koneplus_raw_event(struct hid_device *hdev,
 531                struct hid_report *report, u8 *data, int size)
 532{
 533        struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 534        struct koneplus_device *koneplus = hid_get_drvdata(hdev);
 535
 536        if (intf->cur_altsetting->desc.bInterfaceProtocol
 537                        != USB_INTERFACE_PROTOCOL_MOUSE)
 538                return 0;
 539
 540        if (koneplus == NULL)
 541                return 0;
 542
 543        koneplus_keep_values_up_to_date(koneplus, data);
 544
 545        if (koneplus->roccat_claimed)
 546                koneplus_report_to_chrdev(koneplus, data);
 547
 548        return 0;
 549}
 550
 551static const struct hid_device_id koneplus_devices[] = {
 552        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 553        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
 554        { }
 555};
 556
 557MODULE_DEVICE_TABLE(hid, koneplus_devices);
 558
 559static struct hid_driver koneplus_driver = {
 560                .name = "koneplus",
 561                .id_table = koneplus_devices,
 562                .probe = koneplus_probe,
 563                .remove = koneplus_remove,
 564                .raw_event = koneplus_raw_event
 565};
 566
 567static int __init koneplus_init(void)
 568{
 569        int retval;
 570
 571        /* class name has to be same as driver name */
 572        koneplus_class = class_create(THIS_MODULE, "koneplus");
 573        if (IS_ERR(koneplus_class))
 574                return PTR_ERR(koneplus_class);
 575        koneplus_class->dev_attrs = koneplus_attributes;
 576        koneplus_class->dev_bin_attrs = koneplus_bin_attributes;
 577
 578        retval = hid_register_driver(&koneplus_driver);
 579        if (retval)
 580                class_destroy(koneplus_class);
 581        return retval;
 582}
 583
 584static void __exit koneplus_exit(void)
 585{
 586        hid_unregister_driver(&koneplus_driver);
 587        class_destroy(koneplus_class);
 588}
 589
 590module_init(koneplus_init);
 591module_exit(koneplus_exit);
 592
 593MODULE_AUTHOR("Stefan Achatz");
 594MODULE_DESCRIPTION("USB Roccat Kone[+]/XTD driver");
 595MODULE_LICENSE("GPL v2");
 596
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