Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/usb/input/hid-core.c b/drivers/usb/input/hid-core.c
new file mode 100644
index 0000000..7662cf4
--- /dev/null
+++ b/drivers/usb/input/hid-core.c
@@ -0,0 +1,1864 @@
+/*
+ * USB HID support for Linux
+ *
+ * Copyright (c) 1999 Andreas Gal
+ * Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@suse.cz>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
+#include <linux/spinlock.h>
+#include <asm/unaligned.h>
+#include <asm/byteorder.h>
+#include <linux/input.h>
+#include <linux/wait.h>
+
+#undef DEBUG
+#undef DEBUG_DATA
+
+#include <linux/usb.h>
+
+#include "hid.h"
+#include <linux/hiddev.h>
+
+/*
+ * Version Information
+ */
+
+#define DRIVER_VERSION "v2.01"
+#define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
+#define DRIVER_DESC "USB HID core driver"
+#define DRIVER_LICENSE "GPL"
+
+static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
+ "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
+/*
+ * Module parameters.
+ */
+
+static unsigned int hid_mousepoll_interval;
+module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
+MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
+
+/*
+ * Register a new report for a device.
+ */
+
+static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
+{
+ struct hid_report_enum *report_enum = device->report_enum + type;
+ struct hid_report *report;
+
+ if (report_enum->report_id_hash[id])
+ return report_enum->report_id_hash[id];
+
+ if (!(report = kmalloc(sizeof(struct hid_report), GFP_KERNEL)))
+ return NULL;
+ memset(report, 0, sizeof(struct hid_report));
+
+ if (id != 0)
+ report_enum->numbered = 1;
+
+ report->id = id;
+ report->type = type;
+ report->size = 0;
+ report->device = device;
+ report_enum->report_id_hash[id] = report;
+
+ list_add_tail(&report->list, &report_enum->report_list);
+
+ return report;
+}
+
+/*
+ * Register a new field for this report.
+ */
+
+static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
+{
+ struct hid_field *field;
+
+ if (report->maxfield == HID_MAX_FIELDS) {
+ dbg("too many fields in report");
+ return NULL;
+ }
+
+ if (!(field = kmalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
+ + values * sizeof(unsigned), GFP_KERNEL))) return NULL;
+
+ memset(field, 0, sizeof(struct hid_field) + usages * sizeof(struct hid_usage)
+ + values * sizeof(unsigned));
+
+ field->index = report->maxfield++;
+ report->field[field->index] = field;
+ field->usage = (struct hid_usage *)(field + 1);
+ field->value = (unsigned *)(field->usage + usages);
+ field->report = report;
+
+ return field;
+}
+
+/*
+ * Open a collection. The type/usage is pushed on the stack.
+ */
+
+static int open_collection(struct hid_parser *parser, unsigned type)
+{
+ struct hid_collection *collection;
+ unsigned usage;
+
+ usage = parser->local.usage[0];
+
+ if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
+ dbg("collection stack overflow");
+ return -1;
+ }
+
+ if (parser->device->maxcollection == parser->device->collection_size) {
+ collection = kmalloc(sizeof(struct hid_collection) *
+ parser->device->collection_size * 2, GFP_KERNEL);
+ if (collection == NULL) {
+ dbg("failed to reallocate collection array");
+ return -1;
+ }
+ memcpy(collection, parser->device->collection,
+ sizeof(struct hid_collection) *
+ parser->device->collection_size);
+ memset(collection + parser->device->collection_size, 0,
+ sizeof(struct hid_collection) *
+ parser->device->collection_size);
+ kfree(parser->device->collection);
+ parser->device->collection = collection;
+ parser->device->collection_size *= 2;
+ }
+
+ parser->collection_stack[parser->collection_stack_ptr++] =
+ parser->device->maxcollection;
+
+ collection = parser->device->collection +
+ parser->device->maxcollection++;
+ collection->type = type;
+ collection->usage = usage;
+ collection->level = parser->collection_stack_ptr - 1;
+
+ if (type == HID_COLLECTION_APPLICATION)
+ parser->device->maxapplication++;
+
+ return 0;
+}
+
+/*
+ * Close a collection.
+ */
+
+static int close_collection(struct hid_parser *parser)
+{
+ if (!parser->collection_stack_ptr) {
+ dbg("collection stack underflow");
+ return -1;
+ }
+ parser->collection_stack_ptr--;
+ return 0;
+}
+
+/*
+ * Climb up the stack, search for the specified collection type
+ * and return the usage.
+ */
+
+static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
+{
+ int n;
+ for (n = parser->collection_stack_ptr - 1; n >= 0; n--)
+ if (parser->device->collection[parser->collection_stack[n]].type == type)
+ return parser->device->collection[parser->collection_stack[n]].usage;
+ return 0; /* we know nothing about this usage type */
+}
+
+/*
+ * Add a usage to the temporary parser table.
+ */
+
+static int hid_add_usage(struct hid_parser *parser, unsigned usage)
+{
+ if (parser->local.usage_index >= HID_MAX_USAGES) {
+ dbg("usage index exceeded");
+ return -1;
+ }
+ parser->local.usage[parser->local.usage_index] = usage;
+ parser->local.collection_index[parser->local.usage_index] =
+ parser->collection_stack_ptr ?
+ parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
+ parser->local.usage_index++;
+ return 0;
+}
+
+/*
+ * Register a new field for this report.
+ */
+
+static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
+{
+ struct hid_report *report;
+ struct hid_field *field;
+ int usages;
+ unsigned offset;
+ int i;
+
+ if (!(report = hid_register_report(parser->device, report_type, parser->global.report_id))) {
+ dbg("hid_register_report failed");
+ return -1;
+ }
+
+ if (parser->global.logical_maximum < parser->global.logical_minimum) {
+ dbg("logical range invalid %d %d", parser->global.logical_minimum, parser->global.logical_maximum);
+ return -1;
+ }
+
+ offset = report->size;
+ report->size += parser->global.report_size * parser->global.report_count;
+
+ if (!parser->local.usage_index) /* Ignore padding fields */
+ return 0;
+
+ usages = max_t(int, parser->local.usage_index, parser->global.report_count);
+
+ if ((field = hid_register_field(report, usages, parser->global.report_count)) == NULL)
+ return 0;
+
+ field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
+ field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
+ field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
+
+ for (i = 0; i < usages; i++) {
+ int j = i;
+ /* Duplicate the last usage we parsed if we have excess values */
+ if (i >= parser->local.usage_index)
+ j = parser->local.usage_index - 1;
+ field->usage[i].hid = parser->local.usage[j];
+ field->usage[i].collection_index =
+ parser->local.collection_index[j];
+ }
+
+ field->maxusage = usages;
+ field->flags = flags;
+ field->report_offset = offset;
+ field->report_type = report_type;
+ field->report_size = parser->global.report_size;
+ field->report_count = parser->global.report_count;
+ field->logical_minimum = parser->global.logical_minimum;
+ field->logical_maximum = parser->global.logical_maximum;
+ field->physical_minimum = parser->global.physical_minimum;
+ field->physical_maximum = parser->global.physical_maximum;
+ field->unit_exponent = parser->global.unit_exponent;
+ field->unit = parser->global.unit;
+
+ return 0;
+}
+
+/*
+ * Read data value from item.
+ */
+
+static __inline__ __u32 item_udata(struct hid_item *item)
+{
+ switch (item->size) {
+ case 1: return item->data.u8;
+ case 2: return item->data.u16;
+ case 4: return item->data.u32;
+ }
+ return 0;
+}
+
+static __inline__ __s32 item_sdata(struct hid_item *item)
+{
+ switch (item->size) {
+ case 1: return item->data.s8;
+ case 2: return item->data.s16;
+ case 4: return item->data.s32;
+ }
+ return 0;
+}
+
+/*
+ * Process a global item.
+ */
+
+static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
+{
+ switch (item->tag) {
+
+ case HID_GLOBAL_ITEM_TAG_PUSH:
+
+ if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
+ dbg("global enviroment stack overflow");
+ return -1;
+ }
+
+ memcpy(parser->global_stack + parser->global_stack_ptr++,
+ &parser->global, sizeof(struct hid_global));
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_POP:
+
+ if (!parser->global_stack_ptr) {
+ dbg("global enviroment stack underflow");
+ return -1;
+ }
+
+ memcpy(&parser->global, parser->global_stack + --parser->global_stack_ptr,
+ sizeof(struct hid_global));
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
+ parser->global.usage_page = item_udata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
+ parser->global.logical_minimum = item_sdata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
+ if (parser->global.logical_minimum < 0)
+ parser->global.logical_maximum = item_sdata(item);
+ else
+ parser->global.logical_maximum = item_udata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
+ parser->global.physical_minimum = item_sdata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
+ if (parser->global.physical_minimum < 0)
+ parser->global.physical_maximum = item_sdata(item);
+ else
+ parser->global.physical_maximum = item_udata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
+ parser->global.unit_exponent = item_sdata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_UNIT:
+ parser->global.unit = item_udata(item);
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
+ if ((parser->global.report_size = item_udata(item)) > 32) {
+ dbg("invalid report_size %d", parser->global.report_size);
+ return -1;
+ }
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
+ if ((parser->global.report_count = item_udata(item)) > HID_MAX_USAGES) {
+ dbg("invalid report_count %d", parser->global.report_count);
+ return -1;
+ }
+ return 0;
+
+ case HID_GLOBAL_ITEM_TAG_REPORT_ID:
+ if ((parser->global.report_id = item_udata(item)) == 0) {
+ dbg("report_id 0 is invalid");
+ return -1;
+ }
+ return 0;
+
+ default:
+ dbg("unknown global tag 0x%x", item->tag);
+ return -1;
+ }
+}
+
+/*
+ * Process a local item.
+ */
+
+static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
+{
+ __u32 data;
+ unsigned n;
+
+ if (item->size == 0) {
+ dbg("item data expected for local item");
+ return -1;
+ }
+
+ data = item_udata(item);
+
+ switch (item->tag) {
+
+ case HID_LOCAL_ITEM_TAG_DELIMITER:
+
+ if (data) {
+ /*
+ * We treat items before the first delimiter
+ * as global to all usage sets (branch 0).
+ * In the moment we process only these global
+ * items and the first delimiter set.
+ */
+ if (parser->local.delimiter_depth != 0) {
+ dbg("nested delimiters");
+ return -1;
+ }
+ parser->local.delimiter_depth++;
+ parser->local.delimiter_branch++;
+ } else {
+ if (parser->local.delimiter_depth < 1) {
+ dbg("bogus close delimiter");
+ return -1;
+ }
+ parser->local.delimiter_depth--;
+ }
+ return 1;
+
+ case HID_LOCAL_ITEM_TAG_USAGE:
+
+ if (parser->local.delimiter_branch > 1) {
+ dbg("alternative usage ignored");
+ return 0;
+ }
+
+ if (item->size <= 2)
+ data = (parser->global.usage_page << 16) + data;
+
+ return hid_add_usage(parser, data);
+
+ case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
+
+ if (parser->local.delimiter_branch > 1) {
+ dbg("alternative usage ignored");
+ return 0;
+ }
+
+ if (item->size <= 2)
+ data = (parser->global.usage_page << 16) + data;
+
+ parser->local.usage_minimum = data;
+ return 0;
+
+ case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
+
+ if (parser->local.delimiter_branch > 1) {
+ dbg("alternative usage ignored");
+ return 0;
+ }
+
+ if (item->size <= 2)
+ data = (parser->global.usage_page << 16) + data;
+
+ for (n = parser->local.usage_minimum; n <= data; n++)
+ if (hid_add_usage(parser, n)) {
+ dbg("hid_add_usage failed\n");
+ return -1;
+ }
+ return 0;
+
+ default:
+
+ dbg("unknown local item tag 0x%x", item->tag);
+ return 0;
+ }
+ return 0;
+}
+
+/*
+ * Process a main item.
+ */
+
+static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
+{
+ __u32 data;
+ int ret;
+
+ data = item_udata(item);
+
+ switch (item->tag) {
+ case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
+ ret = open_collection(parser, data & 0xff);
+ break;
+ case HID_MAIN_ITEM_TAG_END_COLLECTION:
+ ret = close_collection(parser);
+ break;
+ case HID_MAIN_ITEM_TAG_INPUT:
+ ret = hid_add_field(parser, HID_INPUT_REPORT, data);
+ break;
+ case HID_MAIN_ITEM_TAG_OUTPUT:
+ ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
+ break;
+ case HID_MAIN_ITEM_TAG_FEATURE:
+ ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
+ break;
+ default:
+ dbg("unknown main item tag 0x%x", item->tag);
+ ret = 0;
+ }
+
+ memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */
+
+ return ret;
+}
+
+/*
+ * Process a reserved item.
+ */
+
+static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
+{
+ dbg("reserved item type, tag 0x%x", item->tag);
+ return 0;
+}
+
+/*
+ * Free a report and all registered fields. The field->usage and
+ * field->value table's are allocated behind the field, so we need
+ * only to free(field) itself.
+ */
+
+static void hid_free_report(struct hid_report *report)
+{
+ unsigned n;
+
+ for (n = 0; n < report->maxfield; n++)
+ kfree(report->field[n]);
+ kfree(report);
+}
+
+/*
+ * Free a device structure, all reports, and all fields.
+ */
+
+static void hid_free_device(struct hid_device *device)
+{
+ unsigned i,j;
+
+ hid_ff_exit(device);
+
+ for (i = 0; i < HID_REPORT_TYPES; i++) {
+ struct hid_report_enum *report_enum = device->report_enum + i;
+
+ for (j = 0; j < 256; j++) {
+ struct hid_report *report = report_enum->report_id_hash[j];
+ if (report)
+ hid_free_report(report);
+ }
+ }
+
+ if (device->rdesc)
+ kfree(device->rdesc);
+ kfree(device);
+}
+
+/*
+ * Fetch a report description item from the data stream. We support long
+ * items, though they are not used yet.
+ */
+
+static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
+{
+ u8 b;
+
+ if ((end - start) <= 0)
+ return NULL;
+
+ b = *start++;
+
+ item->type = (b >> 2) & 3;
+ item->tag = (b >> 4) & 15;
+
+ if (item->tag == HID_ITEM_TAG_LONG) {
+
+ item->format = HID_ITEM_FORMAT_LONG;
+
+ if ((end - start) < 2)
+ return NULL;
+
+ item->size = *start++;
+ item->tag = *start++;
+
+ if ((end - start) < item->size)
+ return NULL;
+
+ item->data.longdata = start;
+ start += item->size;
+ return start;
+ }
+
+ item->format = HID_ITEM_FORMAT_SHORT;
+ item->size = b & 3;
+
+ switch (item->size) {
+
+ case 0:
+ return start;
+
+ case 1:
+ if ((end - start) < 1)
+ return NULL;
+ item->data.u8 = *start++;
+ return start;
+
+ case 2:
+ if ((end - start) < 2)
+ return NULL;
+ item->data.u16 = le16_to_cpu(get_unaligned((__le16*)start));
+ start = (__u8 *)((__le16 *)start + 1);
+ return start;
+
+ case 3:
+ item->size++;
+ if ((end - start) < 4)
+ return NULL;
+ item->data.u32 = le32_to_cpu(get_unaligned((__le32*)start));
+ start = (__u8 *)((__le32 *)start + 1);
+ return start;
+ }
+
+ return NULL;
+}
+
+/*
+ * Parse a report description into a hid_device structure. Reports are
+ * enumerated, fields are attached to these reports.
+ */
+
+static struct hid_device *hid_parse_report(__u8 *start, unsigned size)
+{
+ struct hid_device *device;
+ struct hid_parser *parser;
+ struct hid_item item;
+ __u8 *end;
+ unsigned i;
+ static int (*dispatch_type[])(struct hid_parser *parser,
+ struct hid_item *item) = {
+ hid_parser_main,
+ hid_parser_global,
+ hid_parser_local,
+ hid_parser_reserved
+ };
+
+ if (!(device = kmalloc(sizeof(struct hid_device), GFP_KERNEL)))
+ return NULL;
+ memset(device, 0, sizeof(struct hid_device));
+
+ if (!(device->collection = kmalloc(sizeof(struct hid_collection) *
+ HID_DEFAULT_NUM_COLLECTIONS, GFP_KERNEL))) {
+ kfree(device);
+ return NULL;
+ }
+ memset(device->collection, 0, sizeof(struct hid_collection) *
+ HID_DEFAULT_NUM_COLLECTIONS);
+ device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
+
+ for (i = 0; i < HID_REPORT_TYPES; i++)
+ INIT_LIST_HEAD(&device->report_enum[i].report_list);
+
+ if (!(device->rdesc = (__u8 *)kmalloc(size, GFP_KERNEL))) {
+ kfree(device->collection);
+ kfree(device);
+ return NULL;
+ }
+ memcpy(device->rdesc, start, size);
+ device->rsize = size;
+
+ if (!(parser = kmalloc(sizeof(struct hid_parser), GFP_KERNEL))) {
+ kfree(device->rdesc);
+ kfree(device->collection);
+ kfree(device);
+ return NULL;
+ }
+ memset(parser, 0, sizeof(struct hid_parser));
+ parser->device = device;
+
+ end = start + size;
+ while ((start = fetch_item(start, end, &item)) != NULL) {
+
+ if (item.format != HID_ITEM_FORMAT_SHORT) {
+ dbg("unexpected long global item");
+ kfree(device->collection);
+ hid_free_device(device);
+ kfree(parser);
+ return NULL;
+ }
+
+ if (dispatch_type[item.type](parser, &item)) {
+ dbg("item %u %u %u %u parsing failed\n",
+ item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag);
+ kfree(device->collection);
+ hid_free_device(device);
+ kfree(parser);
+ return NULL;
+ }
+
+ if (start == end) {
+ if (parser->collection_stack_ptr) {
+ dbg("unbalanced collection at end of report description");
+ kfree(device->collection);
+ hid_free_device(device);
+ kfree(parser);
+ return NULL;
+ }
+ if (parser->local.delimiter_depth) {
+ dbg("unbalanced delimiter at end of report description");
+ kfree(device->collection);
+ hid_free_device(device);
+ kfree(parser);
+ return NULL;
+ }
+ kfree(parser);
+ return device;
+ }
+ }
+
+ dbg("item fetching failed at offset %d\n", (int)(end - start));
+ kfree(device->collection);
+ hid_free_device(device);
+ kfree(parser);
+ return NULL;
+}
+
+/*
+ * Convert a signed n-bit integer to signed 32-bit integer. Common
+ * cases are done through the compiler, the screwed things has to be
+ * done by hand.
+ */
+
+static __inline__ __s32 snto32(__u32 value, unsigned n)
+{
+ switch (n) {
+ case 8: return ((__s8)value);
+ case 16: return ((__s16)value);
+ case 32: return ((__s32)value);
+ }
+ return value & (1 << (n - 1)) ? value | (-1 << n) : value;
+}
+
+/*
+ * Convert a signed 32-bit integer to a signed n-bit integer.
+ */
+
+static __inline__ __u32 s32ton(__s32 value, unsigned n)
+{
+ __s32 a = value >> (n - 1);
+ if (a && a != -1)
+ return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
+ return value & ((1 << n) - 1);
+}
+
+/*
+ * Extract/implement a data field from/to a report.
+ */
+
+static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n)
+{
+ report += (offset >> 5) << 2; offset &= 31;
+ return (le64_to_cpu(get_unaligned((__le64*)report)) >> offset) & ((1 << n) - 1);
+}
+
+static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value)
+{
+ report += (offset >> 5) << 2; offset &= 31;
+ put_unaligned((get_unaligned((__le64*)report)
+ & cpu_to_le64(~((((__u64) 1 << n) - 1) << offset)))
+ | cpu_to_le64((__u64)value << offset), (__le64*)report);
+}
+
+/*
+ * Search an array for a value.
+ */
+
+static __inline__ int search(__s32 *array, __s32 value, unsigned n)
+{
+ while (n--) {
+ if (*array++ == value)
+ return 0;
+ }
+ return -1;
+}
+
+static void hid_process_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value, struct pt_regs *regs)
+{
+ hid_dump_input(usage, value);
+ if (hid->claimed & HID_CLAIMED_INPUT)
+ hidinput_hid_event(hid, field, usage, value, regs);
+ if (hid->claimed & HID_CLAIMED_HIDDEV)
+ hiddev_hid_event(hid, field, usage, value, regs);
+}
+
+/*
+ * Analyse a received field, and fetch the data from it. The field
+ * content is stored for next report processing (we do differential
+ * reporting to the layer).
+ */
+
+static void hid_input_field(struct hid_device *hid, struct hid_field *field, __u8 *data, struct pt_regs *regs)
+{
+ unsigned n;
+ unsigned count = field->report_count;
+ unsigned offset = field->report_offset;
+ unsigned size = field->report_size;
+ __s32 min = field->logical_minimum;
+ __s32 max = field->logical_maximum;
+ __s32 *value;
+
+ if (!(value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC)))
+ return;
+
+ for (n = 0; n < count; n++) {
+
+ value[n] = min < 0 ? snto32(extract(data, offset + n * size, size), size) :
+ extract(data, offset + n * size, size);
+
+ if (!(field->flags & HID_MAIN_ITEM_VARIABLE) /* Ignore report if ErrorRollOver */
+ && value[n] >= min && value[n] <= max
+ && field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
+ goto exit;
+ }
+
+ for (n = 0; n < count; n++) {
+
+ if (HID_MAIN_ITEM_VARIABLE & field->flags) {
+ hid_process_event(hid, field, &field->usage[n], value[n], regs);
+ continue;
+ }
+
+ if (field->value[n] >= min && field->value[n] <= max
+ && field->usage[field->value[n] - min].hid
+ && search(value, field->value[n], count))
+ hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, regs);
+
+ if (value[n] >= min && value[n] <= max
+ && field->usage[value[n] - min].hid
+ && search(field->value, value[n], count))
+ hid_process_event(hid, field, &field->usage[value[n] - min], 1, regs);
+ }
+
+ memcpy(field->value, value, count * sizeof(__s32));
+exit:
+ kfree(value);
+}
+
+static int hid_input_report(int type, struct urb *urb, struct pt_regs *regs)
+{
+ struct hid_device *hid = urb->context;
+ struct hid_report_enum *report_enum = hid->report_enum + type;
+ u8 *data = urb->transfer_buffer;
+ int len = urb->actual_length;
+ struct hid_report *report;
+ int n, size;
+
+ if (!len) {
+ dbg("empty report");
+ return -1;
+ }
+
+#ifdef DEBUG_DATA
+ printk(KERN_DEBUG __FILE__ ": report (size %u) (%snumbered)\n", len, report_enum->numbered ? "" : "un");
+#endif
+
+ n = 0; /* Normally report number is 0 */
+ if (report_enum->numbered) { /* Device uses numbered reports, data[0] is report number */
+ n = *data++;
+ len--;
+ }
+
+#ifdef DEBUG_DATA
+ {
+ int i;
+ printk(KERN_DEBUG __FILE__ ": report %d (size %u) = ", n, len);
+ for (i = 0; i < len; i++)
+ printk(" %02x", data[i]);
+ printk("\n");
+ }
+#endif
+
+ if (!(report = report_enum->report_id_hash[n])) {
+ dbg("undefined report_id %d received", n);
+ return -1;
+ }
+
+ size = ((report->size - 1) >> 3) + 1;
+
+ if (len < size)
+ dbg("report %d is too short, (%d < %d)", report->id, len, size);
+
+ if (hid->claimed & HID_CLAIMED_HIDDEV)
+ hiddev_report_event(hid, report);
+
+ for (n = 0; n < report->maxfield; n++)
+ hid_input_field(hid, report->field[n], data, regs);
+
+ if (hid->claimed & HID_CLAIMED_INPUT)
+ hidinput_report_event(hid, report);
+
+ return 0;
+}
+
+/*
+ * Input interrupt completion handler.
+ */
+
+static void hid_irq_in(struct urb *urb, struct pt_regs *regs)
+{
+ struct hid_device *hid = urb->context;
+ int status;
+
+ switch (urb->status) {
+ case 0: /* success */
+ hid_input_report(HID_INPUT_REPORT, urb, regs);
+ break;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -EPERM:
+ case -ESHUTDOWN: /* unplug */
+ case -EILSEQ: /* unplug timeout on uhci */
+ return;
+ case -ETIMEDOUT: /* NAK */
+ break;
+ default: /* error */
+ warn("input irq status %d received", urb->status);
+ }
+
+ status = usb_submit_urb(urb, SLAB_ATOMIC);
+ if (status)
+ err("can't resubmit intr, %s-%s/input%d, status %d",
+ hid->dev->bus->bus_name, hid->dev->devpath,
+ hid->ifnum, status);
+}
+
+/*
+ * Output the field into the report.
+ */
+
+static void hid_output_field(struct hid_field *field, __u8 *data)
+{
+ unsigned count = field->report_count;
+ unsigned offset = field->report_offset;
+ unsigned size = field->report_size;
+ unsigned n;
+
+ for (n = 0; n < count; n++) {
+ if (field->logical_minimum < 0) /* signed values */
+ implement(data, offset + n * size, size, s32ton(field->value[n], size));
+ else /* unsigned values */
+ implement(data, offset + n * size, size, field->value[n]);
+ }
+}
+
+/*
+ * Create a report.
+ */
+
+static void hid_output_report(struct hid_report *report, __u8 *data)
+{
+ unsigned n;
+
+ if (report->id > 0)
+ *data++ = report->id;
+
+ for (n = 0; n < report->maxfield; n++)
+ hid_output_field(report->field[n], data);
+}
+
+/*
+ * Set a field value. The report this field belongs to has to be
+ * created and transferred to the device, to set this value in the
+ * device.
+ */
+
+int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
+{
+ unsigned size = field->report_size;
+
+ hid_dump_input(field->usage + offset, value);
+
+ if (offset >= field->report_count) {
+ dbg("offset (%d) exceeds report_count (%d)", offset, field->report_count);
+ hid_dump_field(field, 8);
+ return -1;
+ }
+ if (field->logical_minimum < 0) {
+ if (value != snto32(s32ton(value, size), size)) {
+ dbg("value %d is out of range", value);
+ return -1;
+ }
+ }
+ field->value[offset] = value;
+ return 0;
+}
+
+/*
+ * Find a report field with a specified HID usage.
+ */
+
+struct hid_field *hid_find_field_by_usage(struct hid_device *hid, __u32 wanted_usage, int type)
+{
+ struct hid_report *report;
+ int i;
+
+ list_for_each_entry(report, &hid->report_enum[type].report_list, list)
+ for (i = 0; i < report->maxfield; i++)
+ if (report->field[i]->logical == wanted_usage)
+ return report->field[i];
+ return NULL;
+}
+
+static int hid_submit_out(struct hid_device *hid)
+{
+ struct hid_report *report;
+
+ report = hid->out[hid->outtail];
+
+ hid_output_report(report, hid->outbuf);
+ hid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+ hid->urbout->dev = hid->dev;
+
+ dbg("submitting out urb");
+
+ if (usb_submit_urb(hid->urbout, GFP_ATOMIC)) {
+ err("usb_submit_urb(out) failed");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int hid_submit_ctrl(struct hid_device *hid)
+{
+ struct hid_report *report;
+ unsigned char dir;
+ int len;
+
+ report = hid->ctrl[hid->ctrltail].report;
+ dir = hid->ctrl[hid->ctrltail].dir;
+
+ len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+ if (dir == USB_DIR_OUT) {
+ hid_output_report(report, hid->ctrlbuf);
+ hid->urbctrl->pipe = usb_sndctrlpipe(hid->dev, 0);
+ hid->urbctrl->transfer_buffer_length = len;
+ } else {
+ int maxpacket, padlen;
+
+ hid->urbctrl->pipe = usb_rcvctrlpipe(hid->dev, 0);
+ maxpacket = usb_maxpacket(hid->dev, hid->urbctrl->pipe, 0);
+ if (maxpacket > 0) {
+ padlen = (len + maxpacket - 1) / maxpacket;
+ padlen *= maxpacket;
+ if (padlen > HID_BUFFER_SIZE)
+ padlen = HID_BUFFER_SIZE;
+ } else
+ padlen = 0;
+ hid->urbctrl->transfer_buffer_length = padlen;
+ }
+ hid->urbctrl->dev = hid->dev;
+
+ hid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
+ hid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
+ hid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
+ hid->cr->wIndex = cpu_to_le16(hid->ifnum);
+ hid->cr->wLength = cpu_to_le16(len);
+
+ dbg("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u",
+ hid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
+ hid->cr->wValue, hid->cr->wIndex, hid->cr->wLength);
+
+ if (usb_submit_urb(hid->urbctrl, GFP_ATOMIC)) {
+ err("usb_submit_urb(ctrl) failed");
+ return -1;
+ }
+
+ return 0;
+}
+
+/*
+ * Output interrupt completion handler.
+ */
+
+static void hid_irq_out(struct urb *urb, struct pt_regs *regs)
+{
+ struct hid_device *hid = urb->context;
+ unsigned long flags;
+ int unplug = 0;
+
+ switch (urb->status) {
+ case 0: /* success */
+ case -ESHUTDOWN: /* unplug */
+ case -EILSEQ: /* unplug timeout on uhci */
+ unplug = 1;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ break;
+ default: /* error */
+ warn("output irq status %d received", urb->status);
+ }
+
+ spin_lock_irqsave(&hid->outlock, flags);
+
+ if (unplug)
+ hid->outtail = hid->outhead;
+ else
+ hid->outtail = (hid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
+
+ if (hid->outhead != hid->outtail) {
+ if (hid_submit_out(hid)) {
+ clear_bit(HID_OUT_RUNNING, &hid->iofl);;
+ wake_up(&hid->wait);
+ }
+ spin_unlock_irqrestore(&hid->outlock, flags);
+ return;
+ }
+
+ clear_bit(HID_OUT_RUNNING, &hid->iofl);
+ spin_unlock_irqrestore(&hid->outlock, flags);
+ wake_up(&hid->wait);
+}
+
+/*
+ * Control pipe completion handler.
+ */
+
+static void hid_ctrl(struct urb *urb, struct pt_regs *regs)
+{
+ struct hid_device *hid = urb->context;
+ unsigned long flags;
+ int unplug = 0;
+
+ spin_lock_irqsave(&hid->ctrllock, flags);
+
+ switch (urb->status) {
+ case 0: /* success */
+ if (hid->ctrl[hid->ctrltail].dir == USB_DIR_IN)
+ hid_input_report(hid->ctrl[hid->ctrltail].report->type, urb, regs);
+ case -ESHUTDOWN: /* unplug */
+ case -EILSEQ: /* unplug timectrl on uhci */
+ unplug = 1;
+ case -ECONNRESET: /* unlink */
+ case -ENOENT:
+ case -EPIPE: /* report not available */
+ break;
+ default: /* error */
+ warn("ctrl urb status %d received", urb->status);
+ }
+
+ if (unplug)
+ hid->ctrltail = hid->ctrlhead;
+ else
+ hid->ctrltail = (hid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
+
+ if (hid->ctrlhead != hid->ctrltail) {
+ if (hid_submit_ctrl(hid)) {
+ clear_bit(HID_CTRL_RUNNING, &hid->iofl);
+ wake_up(&hid->wait);
+ }
+ spin_unlock_irqrestore(&hid->ctrllock, flags);
+ return;
+ }
+
+ clear_bit(HID_CTRL_RUNNING, &hid->iofl);
+ spin_unlock_irqrestore(&hid->ctrllock, flags);
+ wake_up(&hid->wait);
+}
+
+void hid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
+{
+ int head;
+ unsigned long flags;
+
+ if ((hid->quirks & HID_QUIRK_NOGET) && dir == USB_DIR_IN)
+ return;
+
+ if (hid->urbout && dir == USB_DIR_OUT && report->type == HID_OUTPUT_REPORT) {
+
+ spin_lock_irqsave(&hid->outlock, flags);
+
+ if ((head = (hid->outhead + 1) & (HID_OUTPUT_FIFO_SIZE - 1)) == hid->outtail) {
+ spin_unlock_irqrestore(&hid->outlock, flags);
+ warn("output queue full");
+ return;
+ }
+
+ hid->out[hid->outhead] = report;
+ hid->outhead = head;
+
+ if (!test_and_set_bit(HID_OUT_RUNNING, &hid->iofl))
+ if (hid_submit_out(hid))
+ clear_bit(HID_OUT_RUNNING, &hid->iofl);
+
+ spin_unlock_irqrestore(&hid->outlock, flags);
+ return;
+ }
+
+ spin_lock_irqsave(&hid->ctrllock, flags);
+
+ if ((head = (hid->ctrlhead + 1) & (HID_CONTROL_FIFO_SIZE - 1)) == hid->ctrltail) {
+ spin_unlock_irqrestore(&hid->ctrllock, flags);
+ warn("control queue full");
+ return;
+ }
+
+ hid->ctrl[hid->ctrlhead].report = report;
+ hid->ctrl[hid->ctrlhead].dir = dir;
+ hid->ctrlhead = head;
+
+ if (!test_and_set_bit(HID_CTRL_RUNNING, &hid->iofl))
+ if (hid_submit_ctrl(hid))
+ clear_bit(HID_CTRL_RUNNING, &hid->iofl);
+
+ spin_unlock_irqrestore(&hid->ctrllock, flags);
+}
+
+int hid_wait_io(struct hid_device *hid)
+{
+ if (!wait_event_timeout(hid->wait, (!test_bit(HID_CTRL_RUNNING, &hid->iofl) &&
+ !test_bit(HID_OUT_RUNNING, &hid->iofl)),
+ 10*HZ)) {
+ dbg("timeout waiting for ctrl or out queue to clear");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int hid_get_class_descriptor(struct usb_device *dev, int ifnum,
+ unsigned char type, void *buf, int size)
+{
+ int result, retries = 4;
+
+ memset(buf,0,size); // Make sure we parse really received data
+
+ do {
+ result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
+ USB_REQ_GET_DESCRIPTOR, USB_RECIP_INTERFACE | USB_DIR_IN,
+ (type << 8), ifnum, buf, size, USB_CTRL_GET_TIMEOUT);
+ retries--;
+ } while (result < size && retries);
+ return result;
+}
+
+int hid_open(struct hid_device *hid)
+{
+ if (hid->open++)
+ return 0;
+
+ hid->urbin->dev = hid->dev;
+
+ if (usb_submit_urb(hid->urbin, GFP_KERNEL))
+ return -EIO;
+
+ return 0;
+}
+
+void hid_close(struct hid_device *hid)
+{
+ if (!--hid->open)
+ usb_kill_urb(hid->urbin);
+}
+
+/*
+ * Initialize all reports
+ */
+
+void hid_init_reports(struct hid_device *hid)
+{
+ struct hid_report *report;
+ int err, ret;
+
+ list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list) {
+ int size = ((report->size - 1) >> 3) + 1 + hid->report_enum[HID_INPUT_REPORT].numbered;
+ if (size > HID_BUFFER_SIZE) size = HID_BUFFER_SIZE;
+ if (size > hid->urbin->transfer_buffer_length)
+ hid->urbin->transfer_buffer_length = size;
+ hid_submit_report(hid, report, USB_DIR_IN);
+ }
+
+ list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list)
+ hid_submit_report(hid, report, USB_DIR_IN);
+
+ err = 0;
+ ret = hid_wait_io(hid);
+ while (ret) {
+ err |= ret;
+ if (test_bit(HID_CTRL_RUNNING, &hid->iofl))
+ usb_kill_urb(hid->urbctrl);
+ if (test_bit(HID_OUT_RUNNING, &hid->iofl))
+ usb_kill_urb(hid->urbout);
+ ret = hid_wait_io(hid);
+ }
+
+ if (err)
+ warn("timeout initializing reports\n");
+
+ usb_control_msg(hid->dev, usb_sndctrlpipe(hid->dev, 0),
+ HID_REQ_SET_IDLE, USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0,
+ hid->ifnum, NULL, 0, USB_CTRL_SET_TIMEOUT);
+}
+
+#define USB_VENDOR_ID_WACOM 0x056a
+#define USB_DEVICE_ID_WACOM_PENPARTNER 0x0000
+#define USB_DEVICE_ID_WACOM_GRAPHIRE 0x0010
+#define USB_DEVICE_ID_WACOM_INTUOS 0x0020
+#define USB_DEVICE_ID_WACOM_PL 0x0030
+#define USB_DEVICE_ID_WACOM_INTUOS2 0x0040
+#define USB_DEVICE_ID_WACOM_VOLITO 0x0060
+#define USB_DEVICE_ID_WACOM_PTU 0x0003
+
+#define USB_VENDOR_ID_KBGEAR 0x084e
+#define USB_DEVICE_ID_KBGEAR_JAMSTUDIO 0x1001
+
+#define USB_VENDOR_ID_AIPTEK 0x08ca
+#define USB_DEVICE_ID_AIPTEK_01 0x0001
+#define USB_DEVICE_ID_AIPTEK_10 0x0010
+#define USB_DEVICE_ID_AIPTEK_20 0x0020
+#define USB_DEVICE_ID_AIPTEK_21 0x0021
+#define USB_DEVICE_ID_AIPTEK_22 0x0022
+#define USB_DEVICE_ID_AIPTEK_23 0x0023
+#define USB_DEVICE_ID_AIPTEK_24 0x0024
+
+#define USB_VENDOR_ID_GRIFFIN 0x077d
+#define USB_DEVICE_ID_POWERMATE 0x0410
+#define USB_DEVICE_ID_SOUNDKNOB 0x04AA
+
+#define USB_VENDOR_ID_ATEN 0x0557
+#define USB_DEVICE_ID_ATEN_UC100KM 0x2004
+#define USB_DEVICE_ID_ATEN_CS124U 0x2202
+#define USB_DEVICE_ID_ATEN_2PORTKVM 0x2204
+#define USB_DEVICE_ID_ATEN_4PORTKVM 0x2205
+#define USB_DEVICE_ID_ATEN_4PORTKVMC 0x2208
+
+#define USB_VENDOR_ID_TOPMAX 0x0663
+#define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
+
+#define USB_VENDOR_ID_HAPP 0x078b
+#define USB_DEVICE_ID_UGCI_DRIVING 0x0010
+#define USB_DEVICE_ID_UGCI_FLYING 0x0020
+#define USB_DEVICE_ID_UGCI_FIGHTING 0x0030
+
+#define USB_VENDOR_ID_MGE 0x0463
+#define USB_DEVICE_ID_MGE_UPS 0xffff
+#define USB_DEVICE_ID_MGE_UPS1 0x0001
+
+#define USB_VENDOR_ID_ONTRAK 0x0a07
+#define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
+
+#define USB_VENDOR_ID_TANGTOP 0x0d3d
+#define USB_DEVICE_ID_TANGTOP_USBPS2 0x0001
+
+#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
+#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
+
+#define USB_VENDOR_ID_A4TECH 0x09da
+#define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
+
+#define USB_VENDOR_ID_CYPRESS 0x04b4
+#define USB_DEVICE_ID_CYPRESS_MOUSE 0x0001
+#define USB_DEVICE_ID_CYPRESS_HIDCOM 0x5500
+
+#define USB_VENDOR_ID_BERKSHIRE 0x0c98
+#define USB_DEVICE_ID_BERKSHIRE_PCWD 0x1140
+
+#define USB_VENDOR_ID_ALPS 0x0433
+#define USB_DEVICE_ID_IBM_GAMEPAD 0x1101
+
+#define USB_VENDOR_ID_SAITEK 0x06a3
+#define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17
+
+#define USB_VENDOR_ID_NEC 0x073e
+#define USB_DEVICE_ID_NEC_USB_GAME_PAD 0x0301
+
+#define USB_VENDOR_ID_CHIC 0x05fe
+#define USB_DEVICE_ID_CHIC_GAMEPAD 0x0014
+
+#define USB_VENDOR_ID_GLAB 0x06c2
+#define USB_DEVICE_ID_4_PHIDGETSERVO_30 0x0038
+#define USB_DEVICE_ID_1_PHIDGETSERVO_30 0x0039
+#define USB_DEVICE_ID_8_8_8_IF_KIT 0x0045
+#define USB_DEVICE_ID_0_0_4_IF_KIT 0x0040
+#define USB_DEVICE_ID_0_8_8_IF_KIT 0x0053
+
+#define USB_VENDOR_ID_WISEGROUP 0x0925
+#define USB_DEVICE_ID_1_PHIDGETSERVO_20 0x8101
+#define USB_DEVICE_ID_4_PHIDGETSERVO_20 0x8104
+
+#define USB_VENDOR_ID_CODEMERCS 0x07c0
+#define USB_DEVICE_ID_CODEMERCS_IOW40 0x1500
+#define USB_DEVICE_ID_CODEMERCS_IOW24 0x1501
+#define USB_DEVICE_ID_CODEMERCS_IOW48 0x1502
+#define USB_DEVICE_ID_CODEMERCS_IOW28 0x1503
+
+#define USB_VENDOR_ID_DELORME 0x1163
+#define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100
+
+#define USB_VENDOR_ID_MCC 0x09db
+#define USB_DEVICE_ID_MCC_PMD1024LS 0x0076
+#define USB_DEVICE_ID_MCC_PMD1208LS 0x007a
+
+#define USB_VENDOR_ID_CHICONY 0x04f2
+#define USB_DEVICE_ID_CHICONY_USBHUB_KB 0x0100
+
+#define USB_VENDOR_ID_BTC 0x046e
+#define USB_DEVICE_ID_BTC_KEYBOARD 0x5303
+
+
+/*
+ * Alphabetically sorted blacklist by quirk type.
+ */
+
+static struct hid_blacklist {
+ __u16 idVendor;
+ __u16 idProduct;
+ unsigned quirks;
+} hid_blacklist[] = {
+
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW40, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW24, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW48, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_CODEMERCS, USB_DEVICE_ID_CODEMERCS_IOW28, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PENPARTNER, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 1, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 2, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 3, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE + 4, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 1, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 2, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 3, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS + 4, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 1, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 2, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 3, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 4, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PL + 5, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 1, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 2, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 3, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 4, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 5, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS2 + 7, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_VOLITO, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_PTU, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
+ { USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20, HID_QUIRK_IGNORE },
+
+ { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVM, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_4PORTKVMC, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_KEYBOARD, HID_QUIRK_NOGET},
+ { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_USBHUB_KB, HID_QUIRK_NOGET},
+ { USB_VENDOR_ID_TANGTOP, USB_DEVICE_ID_TANGTOP_USBPS2, HID_QUIRK_NOGET },
+
+ { USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU, HID_QUIRK_2WHEEL_MOUSE_HACK_7 },
+ { USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE, HID_QUIRK_2WHEEL_MOUSE_HACK_5 },
+
+ { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
+ { USB_VENDOR_ID_CHIC, USB_DEVICE_ID_CHIC_GAMEPAD, HID_QUIRK_BADPAD },
+ { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_DRIVING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FLYING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_HAPP, USB_DEVICE_ID_UGCI_FIGHTING, HID_QUIRK_BADPAD | HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_NEC, USB_DEVICE_ID_NEC_USB_GAME_PAD, HID_QUIRK_BADPAD },
+ { USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RUMBLEPAD, HID_QUIRK_BADPAD },
+ { USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
+
+ { 0, 0 }
+};
+
+static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
+{
+ if (!(hid->inbuf = usb_buffer_alloc(dev, HID_BUFFER_SIZE, SLAB_ATOMIC, &hid->inbuf_dma)))
+ return -1;
+ if (!(hid->outbuf = usb_buffer_alloc(dev, HID_BUFFER_SIZE, SLAB_ATOMIC, &hid->outbuf_dma)))
+ return -1;
+ if (!(hid->cr = usb_buffer_alloc(dev, sizeof(*(hid->cr)), SLAB_ATOMIC, &hid->cr_dma)))
+ return -1;
+ if (!(hid->ctrlbuf = usb_buffer_alloc(dev, HID_BUFFER_SIZE, SLAB_ATOMIC, &hid->ctrlbuf_dma)))
+ return -1;
+
+ return 0;
+}
+
+static void hid_free_buffers(struct usb_device *dev, struct hid_device *hid)
+{
+ if (hid->inbuf)
+ usb_buffer_free(dev, HID_BUFFER_SIZE, hid->inbuf, hid->inbuf_dma);
+ if (hid->outbuf)
+ usb_buffer_free(dev, HID_BUFFER_SIZE, hid->outbuf, hid->outbuf_dma);
+ if (hid->cr)
+ usb_buffer_free(dev, sizeof(*(hid->cr)), hid->cr, hid->cr_dma);
+ if (hid->ctrlbuf)
+ usb_buffer_free(dev, HID_BUFFER_SIZE, hid->ctrlbuf, hid->ctrlbuf_dma);
+}
+
+static struct hid_device *usb_hid_configure(struct usb_interface *intf)
+{
+ struct usb_host_interface *interface = intf->cur_altsetting;
+ struct usb_device *dev = interface_to_usbdev (intf);
+ struct hid_descriptor *hdesc;
+ struct hid_device *hid;
+ unsigned quirks = 0, rsize = 0;
+ char *buf, *rdesc;
+ int n;
+
+ for (n = 0; hid_blacklist[n].idVendor; n++)
+ if ((hid_blacklist[n].idVendor == le16_to_cpu(dev->descriptor.idVendor)) &&
+ (hid_blacklist[n].idProduct == le16_to_cpu(dev->descriptor.idProduct)))
+ quirks = hid_blacklist[n].quirks;
+
+ if (quirks & HID_QUIRK_IGNORE)
+ return NULL;
+
+ if (usb_get_extra_descriptor(interface, HID_DT_HID, &hdesc) && ((!interface->desc.bNumEndpoints) ||
+ usb_get_extra_descriptor(&interface->endpoint[0], HID_DT_HID, &hdesc))) {
+ dbg("class descriptor not present\n");
+ return NULL;
+ }
+
+ for (n = 0; n < hdesc->bNumDescriptors; n++)
+ if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
+ rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
+
+ if (!rsize || rsize > HID_MAX_DESCRIPTOR_SIZE) {
+ dbg("weird size of report descriptor (%u)", rsize);
+ return NULL;
+ }
+
+ if (!(rdesc = kmalloc(rsize, GFP_KERNEL))) {
+ dbg("couldn't allocate rdesc memory");
+ return NULL;
+ }
+
+ if ((n = hid_get_class_descriptor(dev, interface->desc.bInterfaceNumber, HID_DT_REPORT, rdesc, rsize)) < 0) {
+ dbg("reading report descriptor failed");
+ kfree(rdesc);
+ return NULL;
+ }
+
+#ifdef DEBUG_DATA
+ printk(KERN_DEBUG __FILE__ ": report descriptor (size %u, read %d) = ", rsize, n);
+ for (n = 0; n < rsize; n++)
+ printk(" %02x", (unsigned char) rdesc[n]);
+ printk("\n");
+#endif
+
+ if (!(hid = hid_parse_report(rdesc, n))) {
+ dbg("parsing report descriptor failed");
+ kfree(rdesc);
+ return NULL;
+ }
+
+ kfree(rdesc);
+ hid->quirks = quirks;
+
+ if (hid_alloc_buffers(dev, hid)) {
+ hid_free_buffers(dev, hid);
+ goto fail;
+ }
+
+ for (n = 0; n < interface->desc.bNumEndpoints; n++) {
+
+ struct usb_endpoint_descriptor *endpoint;
+ int pipe;
+ int interval;
+
+ endpoint = &interface->endpoint[n].desc;
+ if ((endpoint->bmAttributes & 3) != 3) /* Not an interrupt endpoint */
+ continue;
+
+ /* handle potential highspeed HID correctly */
+ interval = endpoint->bInterval;
+ if (dev->speed == USB_SPEED_HIGH)
+ interval = 1 << (interval - 1);
+
+ /* Change the polling interval of mice. */
+ if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
+ interval = hid_mousepoll_interval;
+
+ if (endpoint->bEndpointAddress & USB_DIR_IN) {
+ if (hid->urbin)
+ continue;
+ if (!(hid->urbin = usb_alloc_urb(0, GFP_KERNEL)))
+ goto fail;
+ pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+ usb_fill_int_urb(hid->urbin, dev, pipe, hid->inbuf, 0,
+ hid_irq_in, hid, interval);
+ hid->urbin->transfer_dma = hid->inbuf_dma;
+ hid->urbin->transfer_flags |=(URB_NO_TRANSFER_DMA_MAP | URB_ASYNC_UNLINK);
+ } else {
+ if (hid->urbout)
+ continue;
+ if (!(hid->urbout = usb_alloc_urb(0, GFP_KERNEL)))
+ goto fail;
+ pipe = usb_sndintpipe(dev, endpoint->bEndpointAddress);
+ usb_fill_int_urb(hid->urbout, dev, pipe, hid->outbuf, 0,
+ hid_irq_out, hid, interval);
+ hid->urbout->transfer_dma = hid->outbuf_dma;
+ hid->urbout->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_ASYNC_UNLINK);
+ }
+ }
+
+ if (!hid->urbin) {
+ err("couldn't find an input interrupt endpoint");
+ goto fail;
+ }
+
+ init_waitqueue_head(&hid->wait);
+
+ spin_lock_init(&hid->outlock);
+ spin_lock_init(&hid->ctrllock);
+
+ hid->version = le16_to_cpu(hdesc->bcdHID);
+ hid->country = hdesc->bCountryCode;
+ hid->dev = dev;
+ hid->intf = intf;
+ hid->ifnum = interface->desc.bInterfaceNumber;
+
+ hid->name[0] = 0;
+
+ if (!(buf = kmalloc(64, GFP_KERNEL)))
+ goto fail;
+
+ if (dev->manufacturer) {
+ strcat(hid->name, dev->manufacturer);
+ if (dev->product)
+ snprintf(hid->name, 64, "%s %s", hid->name, dev->product);
+ } else if (dev->product) {
+ snprintf(hid->name, 128, "%s", dev->product);
+ } else
+ snprintf(hid->name, 128, "%04x:%04x",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
+
+ usb_make_path(dev, buf, 64);
+ snprintf(hid->phys, 64, "%s/input%d", buf,
+ intf->altsetting[0].desc.bInterfaceNumber);
+
+ if (usb_string(dev, dev->descriptor.iSerialNumber, hid->uniq, 64) <= 0)
+ hid->uniq[0] = 0;
+
+ kfree(buf);
+
+ hid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
+ if (!hid->urbctrl)
+ goto fail;
+ usb_fill_control_urb(hid->urbctrl, dev, 0, (void *) hid->cr,
+ hid->ctrlbuf, 1, hid_ctrl, hid);
+ hid->urbctrl->setup_dma = hid->cr_dma;
+ hid->urbctrl->transfer_dma = hid->ctrlbuf_dma;
+ hid->urbctrl->transfer_flags |= (URB_NO_TRANSFER_DMA_MAP | URB_NO_SETUP_DMA_MAP | URB_ASYNC_UNLINK);
+
+ return hid;
+
+fail:
+
+ if (hid->urbin)
+ usb_free_urb(hid->urbin);
+ if (hid->urbout)
+ usb_free_urb(hid->urbout);
+ if (hid->urbctrl)
+ usb_free_urb(hid->urbctrl);
+ hid_free_buffers(dev, hid);
+ hid_free_device(hid);
+
+ return NULL;
+}
+
+static void hid_disconnect(struct usb_interface *intf)
+{
+ struct hid_device *hid = usb_get_intfdata (intf);
+
+ if (!hid)
+ return;
+
+ usb_set_intfdata(intf, NULL);
+ usb_kill_urb(hid->urbin);
+ usb_kill_urb(hid->urbout);
+ usb_kill_urb(hid->urbctrl);
+
+ if (hid->claimed & HID_CLAIMED_INPUT)
+ hidinput_disconnect(hid);
+ if (hid->claimed & HID_CLAIMED_HIDDEV)
+ hiddev_disconnect(hid);
+
+ usb_free_urb(hid->urbin);
+ usb_free_urb(hid->urbctrl);
+ if (hid->urbout)
+ usb_free_urb(hid->urbout);
+
+ hid_free_buffers(hid->dev, hid);
+ hid_free_device(hid);
+}
+
+static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+ struct hid_device *hid;
+ char path[64];
+ int i;
+ char *c;
+
+ dbg("HID probe called for ifnum %d",
+ intf->altsetting->desc.bInterfaceNumber);
+
+ if (!(hid = usb_hid_configure(intf)))
+ return -EIO;
+
+ hid_init_reports(hid);
+ hid_dump_device(hid);
+
+ if (!hidinput_connect(hid))
+ hid->claimed |= HID_CLAIMED_INPUT;
+ if (!hiddev_connect(hid))
+ hid->claimed |= HID_CLAIMED_HIDDEV;
+
+ usb_set_intfdata(intf, hid);
+
+ if (!hid->claimed) {
+ printk ("HID device not claimed by input or hiddev\n");
+ hid_disconnect(intf);
+ return -EIO;
+ }
+
+ printk(KERN_INFO);
+
+ if (hid->claimed & HID_CLAIMED_INPUT)
+ printk("input");
+ if (hid->claimed == (HID_CLAIMED_INPUT | HID_CLAIMED_HIDDEV))
+ printk(",");
+ if (hid->claimed & HID_CLAIMED_HIDDEV)
+ printk("hiddev%d", hid->minor);
+
+ c = "Device";
+ for (i = 0; i < hid->maxcollection; i++) {
+ if (hid->collection[i].type == HID_COLLECTION_APPLICATION &&
+ (hid->collection[i].usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
+ (hid->collection[i].usage & 0xffff) < ARRAY_SIZE(hid_types)) {
+ c = hid_types[hid->collection[i].usage & 0xffff];
+ break;
+ }
+ }
+
+ usb_make_path(interface_to_usbdev(intf), path, 63);
+
+ printk(": USB HID v%x.%02x %s [%s] on %s\n",
+ hid->version >> 8, hid->version & 0xff, c, hid->name, path);
+
+ return 0;
+}
+
+static int hid_suspend(struct usb_interface *intf, u32 state)
+{
+ struct hid_device *hid = usb_get_intfdata (intf);
+
+ usb_kill_urb(hid->urbin);
+ intf->dev.power.power_state = state;
+ dev_dbg(&intf->dev, "suspend\n");
+ return 0;
+}
+
+static int hid_resume(struct usb_interface *intf)
+{
+ struct hid_device *hid = usb_get_intfdata (intf);
+ int status;
+
+ intf->dev.power.power_state = PM_SUSPEND_ON;
+ if (hid->open)
+ status = usb_submit_urb(hid->urbin, GFP_NOIO);
+ else
+ status = 0;
+ dev_dbg(&intf->dev, "resume status %d\n", status);
+ return status;
+}
+
+static struct usb_device_id hid_usb_ids [] = {
+ { .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
+ .bInterfaceClass = USB_INTERFACE_CLASS_HID },
+ { } /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, hid_usb_ids);
+
+static struct usb_driver hid_driver = {
+ .owner = THIS_MODULE,
+ .name = "usbhid",
+ .probe = hid_probe,
+ .disconnect = hid_disconnect,
+ .suspend = hid_suspend,
+ .resume = hid_resume,
+ .id_table = hid_usb_ids,
+};
+
+static int __init hid_init(void)
+{
+ int retval;
+ retval = hiddev_init();
+ if (retval)
+ goto hiddev_init_fail;
+ retval = usb_register(&hid_driver);
+ if (retval)
+ goto usb_register_fail;
+ info(DRIVER_VERSION ":" DRIVER_DESC);
+
+ return 0;
+usb_register_fail:
+ hiddev_exit();
+hiddev_init_fail:
+ return retval;
+}
+
+static void __exit hid_exit(void)
+{
+ usb_deregister(&hid_driver);
+ hiddev_exit();
+}
+
+module_init(hid_init);
+module_exit(hid_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);