Lines Matching full:parser
121 static int open_collection(struct hid_parser *parser, unsigned type) in open_collection() argument
127 usage = parser->local.usage[0]; in open_collection()
129 if (parser->collection_stack_ptr == parser->collection_stack_size) { in open_collection()
131 unsigned int new_size = parser->collection_stack_size + in open_collection()
134 collection_stack = krealloc(parser->collection_stack, in open_collection()
140 parser->collection_stack = collection_stack; in open_collection()
141 parser->collection_stack_size = new_size; in open_collection()
144 if (parser->device->maxcollection == parser->device->collection_size) { in open_collection()
147 parser->device->collection_size, in open_collection()
151 hid_err(parser->device, "failed to reallocate collection array\n"); in open_collection()
154 memcpy(collection, parser->device->collection, in open_collection()
156 parser->device->collection_size); in open_collection()
157 memset(collection + parser->device->collection_size, 0, in open_collection()
159 parser->device->collection_size); in open_collection()
160 kfree(parser->device->collection); in open_collection()
161 parser->device->collection = collection; in open_collection()
162 parser->device->collection_size *= 2; in open_collection()
165 parser->collection_stack[parser->collection_stack_ptr++] = in open_collection()
166 parser->device->maxcollection; in open_collection()
168 collection_index = parser->device->maxcollection++; in open_collection()
169 collection = parser->device->collection + collection_index; in open_collection()
172 collection->level = parser->collection_stack_ptr - 1; in open_collection()
174 parser->collection_stack[collection->level - 1]; in open_collection()
177 parser->device->maxapplication++; in open_collection()
186 static int close_collection(struct hid_parser *parser) in close_collection() argument
188 if (!parser->collection_stack_ptr) { in close_collection()
189 hid_err(parser->device, "collection stack underflow\n"); in close_collection()
192 parser->collection_stack_ptr--; in close_collection()
201 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) in hid_lookup_collection() argument
203 struct hid_collection *collection = parser->device->collection; in hid_lookup_collection()
206 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { in hid_lookup_collection()
207 unsigned index = parser->collection_stack[n]; in hid_lookup_collection()
219 static void complete_usage(struct hid_parser *parser, unsigned int index) in complete_usage() argument
221 parser->local.usage[index] &= 0xFFFF; in complete_usage()
222 parser->local.usage[index] |= in complete_usage()
223 (parser->global.usage_page & 0xFFFF) << 16; in complete_usage()
227 * Add a usage to the temporary parser table.
230 static int hid_add_usage(struct hid_parser *parser, unsigned usage, u8 size) in hid_add_usage() argument
232 if (parser->local.usage_index >= HID_MAX_USAGES) { in hid_add_usage()
233 hid_err(parser->device, "usage index exceeded\n"); in hid_add_usage()
236 parser->local.usage[parser->local.usage_index] = usage; in hid_add_usage()
243 complete_usage(parser, parser->local.usage_index); in hid_add_usage()
245 parser->local.usage_size[parser->local.usage_index] = size; in hid_add_usage()
246 parser->local.collection_index[parser->local.usage_index] = in hid_add_usage()
247 parser->collection_stack_ptr ? in hid_add_usage()
248 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; in hid_add_usage()
249 parser->local.usage_index++; in hid_add_usage()
257 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) in hid_add_field() argument
266 application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); in hid_add_field()
268 report = hid_register_report(parser->device, report_type, in hid_add_field()
269 parser->global.report_id, application); in hid_add_field()
271 hid_err(parser->device, "hid_register_report failed\n"); in hid_add_field()
276 if ((parser->global.logical_minimum < 0 && in hid_add_field()
277 parser->global.logical_maximum < in hid_add_field()
278 parser->global.logical_minimum) || in hid_add_field()
279 (parser->global.logical_minimum >= 0 && in hid_add_field()
280 (__u32)parser->global.logical_maximum < in hid_add_field()
281 (__u32)parser->global.logical_minimum)) { in hid_add_field()
283 parser->global.logical_minimum, in hid_add_field()
284 parser->global.logical_maximum); in hid_add_field()
289 report->size += parser->global.report_size * parser->global.report_count; in hid_add_field()
293 hid_err(parser->device, "report is too long\n"); in hid_add_field()
297 if (!parser->local.usage_index) /* Ignore padding fields */ in hid_add_field()
300 usages = max_t(unsigned, parser->local.usage_index, in hid_add_field()
301 parser->global.report_count); in hid_add_field()
307 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); in hid_add_field()
308 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); in hid_add_field()
314 if (i >= parser->local.usage_index) in hid_add_field()
315 j = parser->local.usage_index - 1; in hid_add_field()
316 field->usage[i].hid = parser->local.usage[j]; in hid_add_field()
318 parser->local.collection_index[j]; in hid_add_field()
327 field->report_size = parser->global.report_size; in hid_add_field()
328 field->report_count = parser->global.report_count; in hid_add_field()
329 field->logical_minimum = parser->global.logical_minimum; in hid_add_field()
330 field->logical_maximum = parser->global.logical_maximum; in hid_add_field()
331 field->physical_minimum = parser->global.physical_minimum; in hid_add_field()
332 field->physical_maximum = parser->global.physical_maximum; in hid_add_field()
333 field->unit_exponent = parser->global.unit_exponent; in hid_add_field()
334 field->unit = parser->global.unit; in hid_add_field()
367 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) in hid_parser_global() argument
373 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { in hid_parser_global()
374 hid_err(parser->device, "global environment stack overflow\n"); in hid_parser_global()
378 memcpy(parser->global_stack + parser->global_stack_ptr++, in hid_parser_global()
379 &parser->global, sizeof(struct hid_global)); in hid_parser_global()
384 if (!parser->global_stack_ptr) { in hid_parser_global()
385 hid_err(parser->device, "global environment stack underflow\n"); in hid_parser_global()
389 memcpy(&parser->global, parser->global_stack + in hid_parser_global()
390 --parser->global_stack_ptr, sizeof(struct hid_global)); in hid_parser_global()
394 parser->global.usage_page = item_udata(item); in hid_parser_global()
398 parser->global.logical_minimum = item_sdata(item); in hid_parser_global()
402 if (parser->global.logical_minimum < 0) in hid_parser_global()
403 parser->global.logical_maximum = item_sdata(item); in hid_parser_global()
405 parser->global.logical_maximum = item_udata(item); in hid_parser_global()
409 parser->global.physical_minimum = item_sdata(item); in hid_parser_global()
413 if (parser->global.physical_minimum < 0) in hid_parser_global()
414 parser->global.physical_maximum = item_sdata(item); in hid_parser_global()
416 parser->global.physical_maximum = item_udata(item); in hid_parser_global()
426 parser->global.unit_exponent = hid_snto32(raw_value, 4); in hid_parser_global()
428 parser->global.unit_exponent = raw_value; in hid_parser_global()
432 parser->global.unit = item_udata(item); in hid_parser_global()
436 parser->global.report_size = item_udata(item); in hid_parser_global()
437 if (parser->global.report_size > 256) { in hid_parser_global()
438 hid_err(parser->device, "invalid report_size %d\n", in hid_parser_global()
439 parser->global.report_size); in hid_parser_global()
445 parser->global.report_count = item_udata(item); in hid_parser_global()
446 if (parser->global.report_count > HID_MAX_USAGES) { in hid_parser_global()
447 hid_err(parser->device, "invalid report_count %d\n", in hid_parser_global()
448 parser->global.report_count); in hid_parser_global()
454 parser->global.report_id = item_udata(item); in hid_parser_global()
455 if (parser->global.report_id == 0 || in hid_parser_global()
456 parser->global.report_id >= HID_MAX_IDS) { in hid_parser_global()
457 hid_err(parser->device, "report_id %u is invalid\n", in hid_parser_global()
458 parser->global.report_id); in hid_parser_global()
464 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag); in hid_parser_global()
473 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) in hid_parser_local() argument
491 if (parser->local.delimiter_depth != 0) { in hid_parser_local()
492 hid_err(parser->device, "nested delimiters\n"); in hid_parser_local()
495 parser->local.delimiter_depth++; in hid_parser_local()
496 parser->local.delimiter_branch++; in hid_parser_local()
498 if (parser->local.delimiter_depth < 1) { in hid_parser_local()
499 hid_err(parser->device, "bogus close delimiter\n"); in hid_parser_local()
502 parser->local.delimiter_depth--; in hid_parser_local()
508 if (parser->local.delimiter_branch > 1) { in hid_parser_local()
513 return hid_add_usage(parser, data, item->size); in hid_parser_local()
517 if (parser->local.delimiter_branch > 1) { in hid_parser_local()
522 parser->local.usage_minimum = data; in hid_parser_local()
527 if (parser->local.delimiter_branch > 1) { in hid_parser_local()
532 count = data - parser->local.usage_minimum; in hid_parser_local()
533 if (count + parser->local.usage_index >= HID_MAX_USAGES) { in hid_parser_local()
538 if (dev_name(&parser->device->dev)) in hid_parser_local()
539 hid_warn(parser->device, in hid_parser_local()
541 data = HID_MAX_USAGES - parser->local.usage_index + in hid_parser_local()
542 parser->local.usage_minimum - 1; in hid_parser_local()
544 hid_err(parser->device, in hid_parser_local()
550 for (n = parser->local.usage_minimum; n <= data; n++) in hid_parser_local()
551 if (hid_add_usage(parser, n, item->size)) { in hid_parser_local()
567 * As per specification, 6.2.2.8: "When the parser encounters a main item it
572 static void hid_concatenate_last_usage_page(struct hid_parser *parser) in hid_concatenate_last_usage_page() argument
578 if (!parser->local.usage_index) in hid_concatenate_last_usage_page()
581 usage_page = parser->global.usage_page; in hid_concatenate_last_usage_page()
587 for (i = parser->local.usage_index - 1; i >= 0; i--) { in hid_concatenate_last_usage_page()
588 if (parser->local.usage_size[i] > 2) in hid_concatenate_last_usage_page()
592 current_page = parser->local.usage[i] >> 16; in hid_concatenate_last_usage_page()
596 complete_usage(parser, i); in hid_concatenate_last_usage_page()
604 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) in hid_parser_main() argument
609 hid_concatenate_last_usage_page(parser); in hid_parser_main()
615 ret = open_collection(parser, data & 0xff); in hid_parser_main()
618 ret = close_collection(parser); in hid_parser_main()
621 ret = hid_add_field(parser, HID_INPUT_REPORT, data); in hid_parser_main()
624 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); in hid_parser_main()
627 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); in hid_parser_main()
630 hid_warn(parser->device, "unknown main item tag 0x%x\n", item->tag); in hid_parser_main()
634 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ in hid_parser_main()
643 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) in hid_parser_reserved() argument
777 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage) in hid_scan_input_usage() argument
779 struct hid_device *hid = parser->device; in hid_scan_input_usage()
785 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage) in hid_scan_feature_usage() argument
787 if (usage == 0xff0000c5 && parser->global.report_count == 256 && in hid_scan_feature_usage()
788 parser->global.report_size == 8) in hid_scan_feature_usage()
789 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; in hid_scan_feature_usage()
791 if (usage == 0xff0000c6 && parser->global.report_count == 1 && in hid_scan_feature_usage()
792 parser->global.report_size == 8) in hid_scan_feature_usage()
793 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; in hid_scan_feature_usage()
796 static void hid_scan_collection(struct hid_parser *parser, unsigned type) in hid_scan_collection() argument
798 struct hid_device *hid = parser->device; in hid_scan_collection()
801 if (((parser->global.usage_page << 16) == HID_UP_SENSOR) && in hid_scan_collection()
810 if ((parser->global.usage_page << 16) == HID_UP_GENDESK) in hid_scan_collection()
811 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_collection()
812 if (parser->local.usage[i] == HID_GD_POINTER) in hid_scan_collection()
813 parser->scan_flags |= HID_SCAN_FLAG_GD_POINTER; in hid_scan_collection()
815 if ((parser->global.usage_page << 16) >= HID_UP_MSVENDOR) in hid_scan_collection()
816 parser->scan_flags |= HID_SCAN_FLAG_VENDOR_SPECIFIC; in hid_scan_collection()
818 if ((parser->global.usage_page << 16) == HID_UP_GOOGLEVENDOR) in hid_scan_collection()
819 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_collection()
820 if (parser->local.usage[i] == in hid_scan_collection()
822 parser->device->group = in hid_scan_collection()
826 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item) in hid_scan_main() argument
831 hid_concatenate_last_usage_page(parser); in hid_scan_main()
837 hid_scan_collection(parser, data & 0xff); in hid_scan_main()
845 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_main()
846 hid_scan_input_usage(parser, parser->local.usage[i]); in hid_scan_main()
851 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_main()
852 hid_scan_feature_usage(parser, parser->local.usage[i]); in hid_scan_main()
856 /* Reset the local parser environment */ in hid_scan_main()
857 memset(&parser->local, 0, sizeof(parser->local)); in hid_scan_main()
869 struct hid_parser *parser; in hid_scan_report() local
873 static int (*dispatch_type[])(struct hid_parser *parser, in hid_scan_report()
881 parser = vzalloc(sizeof(struct hid_parser)); in hid_scan_report()
882 if (!parser) in hid_scan_report()
885 parser->device = hid; in hid_scan_report()
894 dispatch_type[item.type](parser, &item); in hid_scan_report()
899 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) && in hid_scan_report()
912 if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC) in hid_scan_report()
913 && (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER)) in hid_scan_report()
922 kfree(parser->collection_stack); in hid_scan_report()
923 vfree(parser); in hid_scan_report()
1192 struct hid_parser *parser; in hid_open_report() local
1200 static int (*dispatch_type[])(struct hid_parser *parser, in hid_open_report()
1233 parser = vzalloc(sizeof(struct hid_parser)); in hid_open_report()
1234 if (!parser) { in hid_open_report()
1239 parser->device = device; in hid_open_report()
1260 if (dispatch_type[item.type](parser, &item)) { in hid_open_report()
1268 if (parser->collection_stack_ptr) { in hid_open_report()
1272 if (parser->local.delimiter_depth) { in hid_open_report()
1283 kfree(parser->collection_stack); in hid_open_report()
1284 vfree(parser); in hid_open_report()
1294 kfree(parser->collection_stack); in hid_open_report()
1296 vfree(parser); in hid_open_report()
2598 pr_warn("hid_debug is now used solely for parser and driver debugging.\n" in hid_init()