| /* |
| * HID support for Linux |
| * |
| * Copyright (c) 1999 Andreas Gal |
| * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> |
| * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc |
| * Copyright (c) 2006-2007 Jiri Kosina |
| */ |
| |
| /* |
| * 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/list.h> |
| #include <linux/mm.h> |
| #include <linux/spinlock.h> |
| #include <asm/unaligned.h> |
| #include <asm/byteorder.h> |
| #include <linux/input.h> |
| #include <linux/wait.h> |
| #include <linux/vmalloc.h> |
| #include <linux/sched.h> |
| |
| #include <linux/hid.h> |
| #include <linux/hiddev.h> |
| #include <linux/hid-debug.h> |
| #include <linux/hidraw.h> |
| |
| #include "hid-ids.h" |
| |
| /* |
| * Version Information |
| */ |
| |
| #define DRIVER_VERSION "v2.6" |
| #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik, Jiri Kosina" |
| #define DRIVER_DESC "HID core driver" |
| #define DRIVER_LICENSE "GPL" |
| |
| #ifdef CONFIG_HID_DEBUG |
| int hid_debug = 0; |
| module_param_named(debug, hid_debug, int, 0600); |
| MODULE_PARM_DESC(debug, "HID debugging (0=off, 1=probing info, 2=continuous data dumping)"); |
| EXPORT_SYMBOL_GPL(hid_debug); |
| #endif |
| |
| /* |
| * 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 = kzalloc(sizeof(struct hid_report), GFP_KERNEL))) |
| return NULL; |
| |
| 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_hid("too many fields in report\n"); |
| return NULL; |
| } |
| |
| if (!(field = kzalloc(sizeof(struct hid_field) + usages * sizeof(struct hid_usage) |
| + values * sizeof(unsigned), GFP_KERNEL))) return NULL; |
| |
| field->index = report->maxfield++; |
| report->field[field->index] = field; |
| field->usage = (struct hid_usage *)(field + 1); |
| field->value = (s32 *)(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_hid("collection stack overflow\n"); |
| 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_hid("failed to reallocate collection array\n"); |
| 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_hid("collection stack underflow\n"); |
| 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_hid("usage index exceeded\n"); |
| 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("hid_register_report failed\n"); |
| return -1; |
| } |
| |
| if (parser->global.logical_maximum < parser->global.logical_minimum) { |
| dbg_hid("logical range invalid %d %d\n", 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 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 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_hid("global enviroment stack overflow\n"); |
| 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_hid("global enviroment stack underflow\n"); |
| 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: |
| parser->global.report_size = item_udata(item); |
| if (parser->global.report_size > 32) { |
| dbg_hid("invalid report_size %d\n", |
| parser->global.report_size); |
| return -1; |
| } |
| return 0; |
| |
| case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: |
| parser->global.report_count = item_udata(item); |
| if (parser->global.report_count > HID_MAX_USAGES) { |
| dbg_hid("invalid report_count %d\n", |
| parser->global.report_count); |
| return -1; |
| } |
| return 0; |
| |
| case HID_GLOBAL_ITEM_TAG_REPORT_ID: |
| parser->global.report_id = item_udata(item); |
| if (parser->global.report_id == 0) { |
| dbg_hid("report_id 0 is invalid\n"); |
| return -1; |
| } |
| return 0; |
| |
| default: |
| dbg_hid("unknown global tag 0x%x\n", 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_hid("item data expected for local item\n"); |
| 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_hid("nested delimiters\n"); |
| return -1; |
| } |
| parser->local.delimiter_depth++; |
| parser->local.delimiter_branch++; |
| } else { |
| if (parser->local.delimiter_depth < 1) { |
| dbg_hid("bogus close delimiter\n"); |
| return -1; |
| } |
| parser->local.delimiter_depth--; |
| } |
| return 1; |
| |
| case HID_LOCAL_ITEM_TAG_USAGE: |
| |
| if (parser->local.delimiter_branch > 1) { |
| dbg_hid("alternative usage ignored\n"); |
| 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_hid("alternative usage ignored\n"); |
| 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_hid("alternative usage ignored\n"); |
| 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("hid_add_usage failed\n"); |
| return -1; |
| } |
| return 0; |
| |
| default: |
| |
| dbg_hid("unknown local item tag 0x%x\n", 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_hid("unknown main item tag 0x%x\n", 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_hid("reserved item type, tag 0x%x\n", 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_device_release(struct device *dev) |
| { |
| struct hid_device *device = container_of(dev, struct hid_device, dev); |
| unsigned i, j; |
| |
| 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); |
| } |
| } |
| |
| kfree(device->rdesc); |
| kfree(device->collection); |
| 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 = get_unaligned_le16(start); |
| start = (__u8 *)((__le16 *)start + 1); |
| return start; |
| |
| case 3: |
| item->size++; |
| if ((end - start) < 4) |
| return NULL; |
| item->data.u32 = get_unaligned_le32(start); |
| start = (__u8 *)((__le32 *)start + 1); |
| return start; |
| } |
| |
| return NULL; |
| } |
| |
| /** |
| * hid_parse_report - parse device report |
| * |
| * @device: hid device |
| * @start: report start |
| * @size: report size |
| * |
| * Parse a report description into a hid_device structure. Reports are |
| * enumerated, fields are attached to these reports. |
| * 0 returned on success, otherwise nonzero error value. |
| */ |
| int hid_parse_report(struct hid_device *device, __u8 *start, |
| unsigned size) |
| { |
| struct hid_parser *parser; |
| struct hid_item item; |
| __u8 *end; |
| int ret; |
| 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->driver->report_fixup) |
| device->driver->report_fixup(device, start, size); |
| |
| device->rdesc = kmalloc(size, GFP_KERNEL); |
| if (device->rdesc == NULL) |
| return -ENOMEM; |
| memcpy(device->rdesc, start, size); |
| device->rsize = size; |
| |
| parser = vmalloc(sizeof(struct hid_parser)); |
| if (!parser) { |
| ret = -ENOMEM; |
| goto err; |
| } |
| |
| memset(parser, 0, sizeof(struct hid_parser)); |
| parser->device = device; |
| |
| end = start + size; |
| ret = -EINVAL; |
| while ((start = fetch_item(start, end, &item)) != NULL) { |
| |
| if (item.format != HID_ITEM_FORMAT_SHORT) { |
| dbg_hid("unexpected long global item\n"); |
| goto err; |
| } |
| |
| if (dispatch_type[item.type](parser, &item)) { |
| dbg_hid("item %u %u %u %u parsing failed\n", |
| item.format, (unsigned)item.size, (unsigned)item.type, (unsigned)item.tag); |
| goto err; |
| } |
| |
| if (start == end) { |
| if (parser->collection_stack_ptr) { |
| dbg_hid("unbalanced collection at end of report description\n"); |
| goto err; |
| } |
| if (parser->local.delimiter_depth) { |
| dbg_hid("unbalanced delimiter at end of report description\n"); |
| goto err; |
| } |
| vfree(parser); |
| return 0; |
| } |
| } |
| |
| dbg_hid("item fetching failed at offset %d\n", (int)(end - start)); |
| err: |
| vfree(parser); |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(hid_parse_report); |
| |
| /* |
| * 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 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 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 little endian report (bit array). |
| * |
| * Code sort-of follows HID spec: |
| * http://www.usb.org/developers/devclass_docs/HID1_11.pdf |
| * |
| * While the USB HID spec allows unlimited length bit fields in "report |
| * descriptors", most devices never use more than 16 bits. |
| * One model of UPS is claimed to report "LINEV" as a 32-bit field. |
| * Search linux-kernel and linux-usb-devel archives for "hid-core extract". |
| */ |
| |
| static __inline__ __u32 extract(__u8 *report, unsigned offset, unsigned n) |
| { |
| u64 x; |
| |
| if (n > 32) |
| printk(KERN_WARNING "HID: extract() called with n (%d) > 32! (%s)\n", |
| n, current->comm); |
| |
| report += offset >> 3; /* adjust byte index */ |
| offset &= 7; /* now only need bit offset into one byte */ |
| x = get_unaligned_le64(report); |
| x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ |
| return (u32) x; |
| } |
| |
| /* |
| * "implement" : set bits in a little endian bit stream. |
| * Same concepts as "extract" (see comments above). |
| * The data mangled in the bit stream remains in little endian |
| * order the whole time. It make more sense to talk about |
| * endianness of register values by considering a register |
| * a "cached" copy of the little endiad bit stream. |
| */ |
| static __inline__ void implement(__u8 *report, unsigned offset, unsigned n, __u32 value) |
| { |
| u64 x; |
| u64 m = (1ULL << n) - 1; |
| |
| if (n > 32) |
| printk(KERN_WARNING "HID: implement() called with n (%d) > 32! (%s)\n", |
| n, current->comm); |
| |
| if (value > m) |
| printk(KERN_WARNING "HID: implement() called with too large value %d! (%s)\n", |
| value, current->comm); |
| WARN_ON(value > m); |
| value &= m; |
| |
| report += offset >> 3; |
| offset &= 7; |
| |
| x = get_unaligned_le64(report); |
| x &= ~(m << offset); |
| x |= ((u64)value) << offset; |
| put_unaligned_le64(x, 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; |
| } |
| |
| /** |
| * hid_match_report - check if driver's raw_event should be called |
| * |
| * @hid: hid device |
| * @report_type: type to match against |
| * |
| * compare hid->driver->report_table->report_type to report->type |
| */ |
| static int hid_match_report(struct hid_device *hid, struct hid_report *report) |
| { |
| const struct hid_report_id *id = hid->driver->report_table; |
| |
| if (!id) /* NULL means all */ |
| return 1; |
| |
| for (; id->report_type != HID_TERMINATOR; id++) |
| if (id->report_type == HID_ANY_ID || |
| id->report_type == report->type) |
| return 1; |
| return 0; |
| } |
| |
| /** |
| * hid_match_usage - check if driver's event should be called |
| * |
| * @hid: hid device |
| * @usage: usage to match against |
| * |
| * compare hid->driver->usage_table->usage_{type,code} to |
| * usage->usage_{type,code} |
| */ |
| static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) |
| { |
| const struct hid_usage_id *id = hid->driver->usage_table; |
| |
| if (!id) /* NULL means all */ |
| return 1; |
| |
| for (; id->usage_type != HID_ANY_ID - 1; id++) |
| if ((id->usage_hid == HID_ANY_ID || |
| id->usage_hid == usage->hid) && |
| (id->usage_type == HID_ANY_ID || |
| id->usage_type == usage->type) && |
| (id->usage_code == HID_ANY_ID || |
| id->usage_code == usage->code)) |
| return 1; |
| return 0; |
| } |
| |
| static void hid_process_event(struct hid_device *hid, struct hid_field *field, |
| struct hid_usage *usage, __s32 value, int interrupt) |
| { |
| struct hid_driver *hdrv = hid->driver; |
| int ret; |
| |
| hid_dump_input(usage, value); |
| |
| if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { |
| ret = hdrv->event(hid, field, usage, value); |
| if (ret != 0) { |
| if (ret < 0) |
| dbg_hid("%s's event failed with %d\n", |
| hdrv->name, ret); |
| return; |
| } |
| } |
| |
| if (hid->claimed & HID_CLAIMED_INPUT) |
| hidinput_hid_event(hid, field, usage, value); |
| if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) |
| hid->hiddev_hid_event(hid, field, usage, value); |
| } |
| |
| /* |
| * 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, int interrupt) |
| { |
| 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], interrupt); |
| 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, interrupt); |
| |
| 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, interrupt); |
| } |
| |
| memcpy(field->value, value, count * sizeof(__s32)); |
| exit: |
| kfree(value); |
| } |
| |
| /* |
| * 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 bitsused = offset + count * size; |
| unsigned n; |
| |
| /* make sure the unused bits in the last byte are zeros */ |
| if (count > 0 && size > 0 && (bitsused % 8) != 0) |
| data[(bitsused-1)/8] &= (1 << (bitsused % 8)) - 1; |
| |
| 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. |
| */ |
| |
| 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); |
| } |
| EXPORT_SYMBOL_GPL(hid_output_report); |
| |
| /* |
| * 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_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count); |
| hid_dump_field(field, 8); |
| return -1; |
| } |
| if (field->logical_minimum < 0) { |
| if (value != snto32(s32ton(value, size), size)) { |
| dbg_hid("value %d is out of range\n", value); |
| return -1; |
| } |
| } |
| field->value[offset] = value; |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(hid_set_field); |
| |
| static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, |
| const u8 *data) |
| { |
| struct hid_report *report; |
| unsigned int n = 0; /* Normally report number is 0 */ |
| |
| /* Device uses numbered reports, data[0] is report number */ |
| if (report_enum->numbered) |
| n = *data; |
| |
| report = report_enum->report_id_hash[n]; |
| if (report == NULL) |
| dbg_hid("undefined report_id %u received\n", n); |
| |
| return report; |
| } |
| |
| void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, |
| int interrupt) |
| { |
| struct hid_report_enum *report_enum = hid->report_enum + type; |
| struct hid_report *report; |
| unsigned int a; |
| int rsize, csize = size; |
| u8 *cdata = data; |
| |
| report = hid_get_report(report_enum, data); |
| if (!report) |
| return; |
| |
| if (report_enum->numbered) { |
| cdata++; |
| csize--; |
| } |
| |
| rsize = ((report->size - 1) >> 3) + 1; |
| |
| if (csize < rsize) { |
| dbg_hid("report %d is too short, (%d < %d)\n", report->id, |
| csize, rsize); |
| memset(cdata + csize, 0, rsize - csize); |
| } |
| |
| if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) |
| hid->hiddev_report_event(hid, report); |
| if (hid->claimed & HID_CLAIMED_HIDRAW) { |
| /* numbered reports need to be passed with the report num */ |
| if (report_enum->numbered) |
| hidraw_report_event(hid, data - 1, size + 1); |
| else |
| hidraw_report_event(hid, data, size); |
| } |
| |
| for (a = 0; a < report->maxfield; a++) |
| hid_input_field(hid, report->field[a], cdata, interrupt); |
| |
| if (hid->claimed & HID_CLAIMED_INPUT) |
| hidinput_report_event(hid, report); |
| } |
| EXPORT_SYMBOL_GPL(hid_report_raw_event); |
| |
| /** |
| * hid_input_report - report data from lower layer (usb, bt...) |
| * |
| * @hid: hid device |
| * @type: HID report type (HID_*_REPORT) |
| * @data: report contents |
| * @size: size of data parameter |
| * @interrupt: called from atomic? |
| * |
| * This is data entry for lower layers. |
| */ |
| int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) |
| { |
| struct hid_report_enum *report_enum; |
| struct hid_driver *hdrv; |
| struct hid_report *report; |
| unsigned int i; |
| int ret; |
| |
| if (!hid || !hid->driver) |
| return -ENODEV; |
| report_enum = hid->report_enum + type; |
| hdrv = hid->driver; |
| |
| if (!size) { |
| dbg_hid("empty report\n"); |
| return -1; |
| } |
| |
| dbg_hid("report (size %u) (%snumbered)\n", size, report_enum->numbered ? "" : "un"); |
| |
| report = hid_get_report(report_enum, data); |
| if (!report) |
| return -1; |
| |
| /* dump the report */ |
| dbg_hid("report %d (size %u) = ", report->id, size); |
| for (i = 0; i < size; i++) |
| dbg_hid_line(" %02x", data[i]); |
| dbg_hid_line("\n"); |
| |
| if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { |
| ret = hdrv->raw_event(hid, report, data, size); |
| if (ret != 0) |
| return ret < 0 ? ret : 0; |
| } |
| |
| hid_report_raw_event(hid, type, data, size, interrupt); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(hid_input_report); |
| |
| static bool hid_match_one_id(struct hid_device *hdev, |
| const struct hid_device_id *id) |
| { |
| return id->bus == hdev->bus && |
| (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && |
| (id->product == HID_ANY_ID || id->product == hdev->product); |
| } |
| |
| static const struct hid_device_id *hid_match_id(struct hid_device *hdev, |
| const struct hid_device_id *id) |
| { |
| for (; id->bus; id++) |
| if (hid_match_one_id(hdev, id)) |
| return id; |
| |
| return NULL; |
| } |
| |
| static const struct hid_device_id hid_hiddev_list[] = { |
| { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, |
| { } |
| }; |
| |
| static bool hid_hiddev(struct hid_device *hdev) |
| { |
| return !!hid_match_id(hdev, hid_hiddev_list); |
| } |
| |
| int hid_connect(struct hid_device *hdev, unsigned int connect_mask) |
| { |
| static const char *types[] = { "Device", "Pointer", "Mouse", "Device", |
| "Joystick", "Gamepad", "Keyboard", "Keypad", |
| "Multi-Axis Controller" |
| }; |
| const char *type, *bus; |
| char buf[64]; |
| unsigned int i; |
| int len; |
| |
| if (hdev->bus != BUS_USB) |
| connect_mask &= ~HID_CONNECT_HIDDEV; |
| if (hid_hiddev(hdev)) |
| connect_mask |= HID_CONNECT_HIDDEV_FORCE; |
| |
| if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, |
| connect_mask & HID_CONNECT_HIDINPUT_FORCE)) |
| hdev->claimed |= HID_CLAIMED_INPUT; |
| if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && |
| !hdev->hiddev_connect(hdev, |
| connect_mask & HID_CONNECT_HIDDEV_FORCE)) |
| hdev->claimed |= HID_CLAIMED_HIDDEV; |
| if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) |
| hdev->claimed |= HID_CLAIMED_HIDRAW; |
| |
| if (!hdev->claimed) { |
| dev_err(&hdev->dev, "claimed by neither input, hiddev nor " |
| "hidraw\n"); |
| return -ENODEV; |
| } |
| |
| if ((hdev->claimed & HID_CLAIMED_INPUT) && |
| (connect_mask & HID_CONNECT_FF) && hdev->ff_init) |
| hdev->ff_init(hdev); |
| |
| len = 0; |
| if (hdev->claimed & HID_CLAIMED_INPUT) |
| len += sprintf(buf + len, "input"); |
| if (hdev->claimed & HID_CLAIMED_HIDDEV) |
| len += sprintf(buf + len, "%shiddev%d", len ? "," : "", |
| hdev->minor); |
| if (hdev->claimed & HID_CLAIMED_HIDRAW) |
| len += sprintf(buf + len, "%shidraw%d", len ? "," : "", |
| ((struct hidraw *)hdev->hidraw)->minor); |
| |
| type = "Device"; |
| for (i = 0; i < hdev->maxcollection; i++) { |
| struct hid_collection *col = &hdev->collection[i]; |
| if (col->type == HID_COLLECTION_APPLICATION && |
| (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && |
| (col->usage & 0xffff) < ARRAY_SIZE(types)) { |
| type = types[col->usage & 0xffff]; |
| break; |
| } |
| } |
| |
| switch (hdev->bus) { |
| case BUS_USB: |
| bus = "USB"; |
| break; |
| case BUS_BLUETOOTH: |
| bus = "BLUETOOTH"; |
| break; |
| default: |
| bus = "<UNKNOWN>"; |
| } |
| |
| dev_info(&hdev->dev, "%s: %s HID v%x.%02x %s [%s] on %s\n", |
| buf, bus, hdev->version >> 8, hdev->version & 0xff, |
| type, hdev->name, hdev->phys); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(hid_connect); |
| |
| /* a list of devices for which there is a specialized driver on HID bus */ |
| static const struct hid_device_id hid_blacklist[] = { |
| { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, |
| { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, |
| { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, |
| { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, |
| { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, |
| |
| { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, 0x030c) }, |
| { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, |
| { } |
| }; |
| |
| struct hid_dynid { |
| struct list_head list; |
| struct hid_device_id id; |
| }; |
| |
| /** |
| * store_new_id - add a new HID device ID to this driver and re-probe devices |
| * @driver: target device driver |
| * @buf: buffer for scanning device ID data |
| * @count: input size |
| * |
| * Adds a new dynamic hid device ID to this driver, |
| * and causes the driver to probe for all devices again. |
| */ |
| static ssize_t store_new_id(struct device_driver *drv, const char *buf, |
| size_t count) |
| { |
| struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); |
| struct hid_dynid *dynid; |
| __u32 bus, vendor, product; |
| unsigned long driver_data = 0; |
| int ret; |
| |
| ret = sscanf(buf, "%x %x %x %lx", |
| &bus, &vendor, &product, &driver_data); |
| if (ret < 3) |
| return -EINVAL; |
| |
| dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); |
| if (!dynid) |
| return -ENOMEM; |
| |
| dynid->id.bus = bus; |
| dynid->id.vendor = vendor; |
| dynid->id.product = product; |
| dynid->id.driver_data = driver_data; |
| |
| spin_lock(&hdrv->dyn_lock); |
| list_add_tail(&dynid->list, &hdrv->dyn_list); |
| spin_unlock(&hdrv->dyn_lock); |
| |
| ret = 0; |
| if (get_driver(&hdrv->driver)) { |
| ret = driver_attach(&hdrv->driver); |
| put_driver(&hdrv->driver); |
| } |
| |
| return ret ? : count; |
| } |
| static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); |
| |
| static void hid_free_dynids(struct hid_driver *hdrv) |
| { |
| struct hid_dynid *dynid, *n; |
| |
| spin_lock(&hdrv->dyn_lock); |
| list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { |
| list_del(&dynid->list); |
| kfree(dynid); |
| } |
| spin_unlock(&hdrv->dyn_lock); |
| } |
| |
| static const struct hid_device_id *hid_match_device(struct hid_device *hdev, |
| struct hid_driver *hdrv) |
| { |
| struct hid_dynid *dynid; |
| |
| spin_lock(&hdrv->dyn_lock); |
| list_for_each_entry(dynid, &hdrv->dyn_list, list) { |
| if (hid_match_one_id(hdev, &dynid->id)) { |
| spin_unlock(&hdrv->dyn_lock); |
| return &dynid->id; |
| } |
| } |
| spin_unlock(&hdrv->dyn_lock); |
| |
| return hid_match_id(hdev, hdrv->id_table); |
| } |
| |
| static int hid_bus_match(struct device *dev, struct device_driver *drv) |
| { |
| struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); |
| struct hid_device *hdev = container_of(dev, struct hid_device, dev); |
| |
| if (!hid_match_device(hdev, hdrv)) |
| return 0; |
| |
| /* generic wants all non-blacklisted */ |
| if (!strncmp(hdrv->name, "generic-", 8)) |
| return !hid_match_id(hdev, hid_blacklist); |
| |
| return 1; |
| } |
| |
| static int hid_device_probe(struct device *dev) |
| { |
| struct hid_driver *hdrv = container_of(dev->driver, |
| struct hid_driver, driver); |
| struct hid_device *hdev = container_of(dev, struct hid_device, dev); |
| const struct hid_device_id *id; |
| int ret = 0; |
| |
| if (!hdev->driver) { |
| id = hid_match_device(hdev, hdrv); |
| if (id == NULL) |
| return -ENODEV; |
| |
| hdev->driver = hdrv; |
| if (hdrv->probe) { |
| ret = hdrv->probe(hdev, id); |
| } else { /* default probe */ |
| ret = hid_parse(hdev); |
| if (!ret) |
| ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
| } |
| if (ret) |
| hdev->driver = NULL; |
| } |
| return ret; |
| } |
| |
| static int hid_device_remove(struct device *dev) |
| { |
| struct hid_device *hdev = container_of(dev, struct hid_device, dev); |
| struct hid_driver *hdrv = hdev->driver; |
| |
| if (hdrv) { |
| if (hdrv->remove) |
| hdrv->remove(hdev); |
| else /* default remove */ |
| hid_hw_stop(hdev); |
| hdev->driver = NULL; |
| } |
| |
| return 0; |
| } |
| |
| static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) |
| { |
| struct hid_device *hdev = container_of(dev, struct hid_device, dev); |
| |
| if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", |
| hdev->bus, hdev->vendor, hdev->product)) |
| return -ENOMEM; |
| |
| if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) |
| return -ENOMEM; |
| |
| if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) |
| return -ENOMEM; |
| |
| if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) |
| return -ENOMEM; |
| |
| if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X", |
| hdev->bus, hdev->vendor, hdev->product)) |
| return -ENOMEM; |
| |
| return 0; |
| } |
| |
| static struct bus_type hid_bus_type = { |
| .name = "hid", |
| .match = hid_bus_match, |
| .probe = hid_device_probe, |
| .remove = hid_device_remove, |
| .uevent = hid_uevent, |
| }; |
| |
| /* a list of devices that shouldn't be handled by HID core at all */ |
| static const struct hid_device_id hid_ignore_list[] = { |
| { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM)}, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2)}, |
| { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0003) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY1) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD3) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD4) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_SOUNDGRAPH, USB_DEVICE_ID_SOUNDGRAPH_IMON_LCD5) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, |
| { } |
| }; |
| |
| /** |
| * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer |
| * |
| * There are composite devices for which we want to ignore only a certain |
| * interface. This is a list of devices for which only the mouse interface will |
| * be ignored. This allows a dedicated driver to take care of the interface. |
| */ |
| static const struct hid_device_id hid_mouse_ignore_list[] = { |
| /* appletouch driver */ |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, |
| { } |
| }; |
| |
| static bool hid_ignore(struct hid_device *hdev) |
| { |
| switch (hdev->vendor) { |
| case USB_VENDOR_ID_CODEMERCS: |
| /* ignore all Code Mercenaries IOWarrior devices */ |
| if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && |
| hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) |
| return true; |
| break; |
| case USB_VENDOR_ID_LOGITECH: |
| if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && |
| hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) |
| return true; |
| break; |
| } |
| |
| if (hdev->type == HID_TYPE_USBMOUSE && |
| hid_match_id(hdev, hid_mouse_ignore_list)) |
| return true; |
| |
| return !!hid_match_id(hdev, hid_ignore_list); |
| } |
| |
| int hid_add_device(struct hid_device *hdev) |
| { |
| static atomic_t id = ATOMIC_INIT(0); |
| int ret; |
| |
| if (WARN_ON(hdev->status & HID_STAT_ADDED)) |
| return -EBUSY; |
| |
| /* we need to kill them here, otherwise they will stay allocated to |
| * wait for coming driver */ |
| if (hid_ignore(hdev)) |
| return -ENODEV; |
| |
| /* XXX hack, any other cleaner solution after the driver core |
| * is converted to allow more than 20 bytes as the device name? */ |
| dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, |
| hdev->vendor, hdev->product, atomic_inc_return(&id)); |
| |
| ret = device_add(&hdev->dev); |
| if (!ret) |
| hdev->status |= HID_STAT_ADDED; |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(hid_add_device); |
| |
| /** |
| * hid_allocate_device - allocate new hid device descriptor |
| * |
| * Allocate and initialize hid device, so that hid_destroy_device might be |
| * used to free it. |
| * |
| * New hid_device pointer is returned on success, otherwise ERR_PTR encoded |
| * error value. |
| */ |
| struct hid_device *hid_allocate_device(void) |
| { |
| struct hid_device *hdev; |
| unsigned int i; |
| int ret = -ENOMEM; |
| |
| hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); |
| if (hdev == NULL) |
| return ERR_PTR(ret); |
| |
| device_initialize(&hdev->dev); |
| hdev->dev.release = hid_device_release; |
| hdev->dev.bus = &hid_bus_type; |
| |
| hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, |
| sizeof(struct hid_collection), GFP_KERNEL); |
| if (hdev->collection == NULL) |
| goto err; |
| hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS; |
| |
| for (i = 0; i < HID_REPORT_TYPES; i++) |
| INIT_LIST_HEAD(&hdev->report_enum[i].report_list); |
| |
| return hdev; |
| err: |
| put_device(&hdev->dev); |
| return ERR_PTR(ret); |
| } |
| EXPORT_SYMBOL_GPL(hid_allocate_device); |
| |
| static void hid_remove_device(struct hid_device *hdev) |
| { |
| if (hdev->status & HID_STAT_ADDED) { |
| device_del(&hdev->dev); |
| hdev->status &= ~HID_STAT_ADDED; |
| } |
| } |
| |
| /** |
| * hid_destroy_device - free previously allocated device |
| * |
| * @hdev: hid device |
| * |
| * If you allocate hid_device through hid_allocate_device, you should ever |
| * free by this function. |
| */ |
| void hid_destroy_device(struct hid_device *hdev) |
| { |
| hid_remove_device(hdev); |
| put_device(&hdev->dev); |
| } |
| EXPORT_SYMBOL_GPL(hid_destroy_device); |
| |
| int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, |
| const char *mod_name) |
| { |
| int ret; |
| |
| hdrv->driver.name = hdrv->name; |
| hdrv->driver.bus = &hid_bus_type; |
| hdrv->driver.owner = owner; |
| hdrv->driver.mod_name = mod_name; |
| |
| INIT_LIST_HEAD(&hdrv->dyn_list); |
| spin_lock_init(&hdrv->dyn_lock); |
| |
| ret = driver_register(&hdrv->driver); |
| if (ret) |
| return ret; |
| |
| ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); |
| if (ret) |
| driver_unregister(&hdrv->driver); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL_GPL(__hid_register_driver); |
| |
| void hid_unregister_driver(struct hid_driver *hdrv) |
| { |
| driver_remove_file(&hdrv->driver, &driver_attr_new_id); |
| driver_unregister(&hdrv->driver); |
| hid_free_dynids(hdrv); |
| } |
| EXPORT_SYMBOL_GPL(hid_unregister_driver); |
| |
| int hid_check_keys_pressed(struct hid_device *hid) |
| { |
| struct hid_input *hidinput; |
| int i; |
| |
| if (!(hid->claimed & HID_CLAIMED_INPUT)) |
| return 0; |
| |
| list_for_each_entry(hidinput, &hid->inputs, list) { |
| for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) |
| if (hidinput->input->key[i]) |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| EXPORT_SYMBOL_GPL(hid_check_keys_pressed); |
| |
| static int __init hid_init(void) |
| { |
| int ret; |
| |
| ret = bus_register(&hid_bus_type); |
| if (ret) { |
| printk(KERN_ERR "HID: can't register hid bus\n"); |
| goto err; |
| } |
| |
| ret = hidraw_init(); |
| if (ret) |
| goto err_bus; |
| |
| return 0; |
| err_bus: |
| bus_unregister(&hid_bus_type); |
| err: |
| return ret; |
| } |
| |
| static void __exit hid_exit(void) |
| { |
| hidraw_exit(); |
| bus_unregister(&hid_bus_type); |
| } |
| |
| module_init(hid_init); |
| module_exit(hid_exit); |
| |
| MODULE_LICENSE(DRIVER_LICENSE); |
| |