Lines Matching refs:parser
151 static int open_collection(struct hid_parser *parser, unsigned type) in open_collection() argument
157 usage = parser->local.usage[0]; in open_collection()
159 if (parser->collection_stack_ptr == parser->collection_stack_size) { in open_collection()
161 unsigned int new_size = parser->collection_stack_size + in open_collection()
164 collection_stack = krealloc(parser->collection_stack, in open_collection()
170 parser->collection_stack = collection_stack; in open_collection()
171 parser->collection_stack_size = new_size; in open_collection()
174 if (parser->device->maxcollection == parser->device->collection_size) { in open_collection()
177 parser->device->collection_size, in open_collection()
181 hid_err(parser->device, "failed to reallocate collection array\n"); in open_collection()
184 memcpy(collection, parser->device->collection, in open_collection()
186 parser->device->collection_size); in open_collection()
187 memset(collection + parser->device->collection_size, 0, in open_collection()
189 parser->device->collection_size); in open_collection()
190 kfree(parser->device->collection); in open_collection()
191 parser->device->collection = collection; in open_collection()
192 parser->device->collection_size *= 2; in open_collection()
195 parser->collection_stack[parser->collection_stack_ptr++] = in open_collection()
196 parser->device->maxcollection; in open_collection()
198 collection_index = parser->device->maxcollection++; in open_collection()
199 collection = parser->device->collection + collection_index; in open_collection()
202 collection->level = parser->collection_stack_ptr - 1; in open_collection()
204 parser->collection_stack[collection->level - 1]; in open_collection()
207 parser->device->maxapplication++; in open_collection()
216 static int close_collection(struct hid_parser *parser) in close_collection() argument
218 if (!parser->collection_stack_ptr) { in close_collection()
219 hid_err(parser->device, "collection stack underflow\n"); in close_collection()
222 parser->collection_stack_ptr--; in close_collection()
231 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) in hid_lookup_collection() argument
233 struct hid_collection *collection = parser->device->collection; in hid_lookup_collection()
236 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { in hid_lookup_collection()
237 unsigned index = parser->collection_stack[n]; in hid_lookup_collection()
249 static void complete_usage(struct hid_parser *parser, unsigned int index) in complete_usage() argument
251 parser->local.usage[index] &= 0xFFFF; in complete_usage()
252 parser->local.usage[index] |= in complete_usage()
253 (parser->global.usage_page & 0xFFFF) << 16; in complete_usage()
260 static int hid_add_usage(struct hid_parser *parser, unsigned usage, u8 size) in hid_add_usage() argument
262 if (parser->local.usage_index >= HID_MAX_USAGES) { in hid_add_usage()
263 hid_err(parser->device, "usage index exceeded\n"); in hid_add_usage()
266 parser->local.usage[parser->local.usage_index] = usage; in hid_add_usage()
273 complete_usage(parser, parser->local.usage_index); in hid_add_usage()
275 parser->local.usage_size[parser->local.usage_index] = size; in hid_add_usage()
276 parser->local.collection_index[parser->local.usage_index] = in hid_add_usage()
277 parser->collection_stack_ptr ? in hid_add_usage()
278 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; in hid_add_usage()
279 parser->local.usage_index++; in hid_add_usage()
287 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) in hid_add_field() argument
297 application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); in hid_add_field()
299 report = hid_register_report(parser->device, report_type, in hid_add_field()
300 parser->global.report_id, application); in hid_add_field()
302 hid_err(parser->device, "hid_register_report failed\n"); in hid_add_field()
307 if ((parser->global.logical_minimum < 0 && in hid_add_field()
308 parser->global.logical_maximum < in hid_add_field()
309 parser->global.logical_minimum) || in hid_add_field()
310 (parser->global.logical_minimum >= 0 && in hid_add_field()
311 (__u32)parser->global.logical_maximum < in hid_add_field()
312 (__u32)parser->global.logical_minimum)) { in hid_add_field()
314 parser->global.logical_minimum, in hid_add_field()
315 parser->global.logical_maximum); in hid_add_field()
320 report->size += parser->global.report_size * parser->global.report_count; in hid_add_field()
322 if (parser->device->ll_driver->max_buffer_size) in hid_add_field()
323 max_buffer_size = parser->device->ll_driver->max_buffer_size; in hid_add_field()
327 hid_err(parser->device, "report is too long\n"); in hid_add_field()
331 if (!parser->local.usage_index) /* Ignore padding fields */ in hid_add_field()
334 usages = max_t(unsigned, parser->local.usage_index, in hid_add_field()
335 parser->global.report_count); in hid_add_field()
341 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); in hid_add_field()
342 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); in hid_add_field()
348 if (i >= parser->local.usage_index) in hid_add_field()
349 j = parser->local.usage_index - 1; in hid_add_field()
350 field->usage[i].hid = parser->local.usage[j]; in hid_add_field()
352 parser->local.collection_index[j]; in hid_add_field()
361 field->report_size = parser->global.report_size; in hid_add_field()
362 field->report_count = parser->global.report_count; in hid_add_field()
363 field->logical_minimum = parser->global.logical_minimum; in hid_add_field()
364 field->logical_maximum = parser->global.logical_maximum; in hid_add_field()
365 field->physical_minimum = parser->global.physical_minimum; in hid_add_field()
366 field->physical_maximum = parser->global.physical_maximum; in hid_add_field()
367 field->unit_exponent = parser->global.unit_exponent; in hid_add_field()
368 field->unit = parser->global.unit; in hid_add_field()
401 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) in hid_parser_global() argument
407 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { in hid_parser_global()
408 hid_err(parser->device, "global environment stack overflow\n"); in hid_parser_global()
412 memcpy(parser->global_stack + parser->global_stack_ptr++, in hid_parser_global()
413 &parser->global, sizeof(struct hid_global)); in hid_parser_global()
418 if (!parser->global_stack_ptr) { in hid_parser_global()
419 hid_err(parser->device, "global environment stack underflow\n"); in hid_parser_global()
423 memcpy(&parser->global, parser->global_stack + in hid_parser_global()
424 --parser->global_stack_ptr, sizeof(struct hid_global)); in hid_parser_global()
428 parser->global.usage_page = item_udata(item); in hid_parser_global()
432 parser->global.logical_minimum = item_sdata(item); in hid_parser_global()
436 if (parser->global.logical_minimum < 0) in hid_parser_global()
437 parser->global.logical_maximum = item_sdata(item); in hid_parser_global()
439 parser->global.logical_maximum = item_udata(item); in hid_parser_global()
443 parser->global.physical_minimum = item_sdata(item); in hid_parser_global()
447 if (parser->global.physical_minimum < 0) in hid_parser_global()
448 parser->global.physical_maximum = item_sdata(item); in hid_parser_global()
450 parser->global.physical_maximum = item_udata(item); in hid_parser_global()
460 parser->global.unit_exponent = snto32(raw_value, 4); in hid_parser_global()
462 parser->global.unit_exponent = raw_value; in hid_parser_global()
466 parser->global.unit = item_udata(item); in hid_parser_global()
470 parser->global.report_size = item_udata(item); in hid_parser_global()
471 if (parser->global.report_size > 256) { in hid_parser_global()
472 hid_err(parser->device, "invalid report_size %d\n", in hid_parser_global()
473 parser->global.report_size); in hid_parser_global()
479 parser->global.report_count = item_udata(item); in hid_parser_global()
480 if (parser->global.report_count > HID_MAX_USAGES) { in hid_parser_global()
481 hid_err(parser->device, "invalid report_count %d\n", in hid_parser_global()
482 parser->global.report_count); in hid_parser_global()
488 parser->global.report_id = item_udata(item); in hid_parser_global()
489 if (parser->global.report_id == 0 || in hid_parser_global()
490 parser->global.report_id >= HID_MAX_IDS) { in hid_parser_global()
491 hid_err(parser->device, "report_id %u is invalid\n", in hid_parser_global()
492 parser->global.report_id); in hid_parser_global()
498 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag); in hid_parser_global()
507 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) in hid_parser_local() argument
525 if (parser->local.delimiter_depth != 0) { in hid_parser_local()
526 hid_err(parser->device, "nested delimiters\n"); in hid_parser_local()
529 parser->local.delimiter_depth++; in hid_parser_local()
530 parser->local.delimiter_branch++; in hid_parser_local()
532 if (parser->local.delimiter_depth < 1) { in hid_parser_local()
533 hid_err(parser->device, "bogus close delimiter\n"); in hid_parser_local()
536 parser->local.delimiter_depth--; in hid_parser_local()
542 if (parser->local.delimiter_branch > 1) { in hid_parser_local()
547 return hid_add_usage(parser, data, item->size); in hid_parser_local()
551 if (parser->local.delimiter_branch > 1) { in hid_parser_local()
556 parser->local.usage_minimum = data; in hid_parser_local()
561 if (parser->local.delimiter_branch > 1) { in hid_parser_local()
566 count = data - parser->local.usage_minimum; in hid_parser_local()
567 if (count + parser->local.usage_index >= HID_MAX_USAGES) { in hid_parser_local()
572 if (dev_name(&parser->device->dev)) in hid_parser_local()
573 hid_warn(parser->device, in hid_parser_local()
575 data = HID_MAX_USAGES - parser->local.usage_index + in hid_parser_local()
576 parser->local.usage_minimum - 1; in hid_parser_local()
578 hid_err(parser->device, in hid_parser_local()
584 for (n = parser->local.usage_minimum; n <= data; n++) in hid_parser_local()
585 if (hid_add_usage(parser, n, item->size)) { in hid_parser_local()
606 static void hid_concatenate_last_usage_page(struct hid_parser *parser) in hid_concatenate_last_usage_page() argument
612 if (!parser->local.usage_index) in hid_concatenate_last_usage_page()
615 usage_page = parser->global.usage_page; in hid_concatenate_last_usage_page()
621 for (i = parser->local.usage_index - 1; i >= 0; i--) { in hid_concatenate_last_usage_page()
622 if (parser->local.usage_size[i] > 2) in hid_concatenate_last_usage_page()
626 current_page = parser->local.usage[i] >> 16; in hid_concatenate_last_usage_page()
630 complete_usage(parser, i); in hid_concatenate_last_usage_page()
638 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) in hid_parser_main() argument
643 hid_concatenate_last_usage_page(parser); in hid_parser_main()
649 ret = open_collection(parser, data & 0xff); in hid_parser_main()
652 ret = close_collection(parser); in hid_parser_main()
655 ret = hid_add_field(parser, HID_INPUT_REPORT, data); in hid_parser_main()
658 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); in hid_parser_main()
661 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); in hid_parser_main()
666 hid_warn_ratelimited(parser->device, "reserved main item tag 0x%x\n", item->tag); in hid_parser_main()
668 hid_warn_ratelimited(parser->device, "unknown main item tag 0x%x\n", item->tag); in hid_parser_main()
672 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ in hid_parser_main()
681 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) in hid_parser_reserved() argument
834 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage) in hid_scan_input_usage() argument
836 struct hid_device *hid = parser->device; in hid_scan_input_usage()
842 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage) in hid_scan_feature_usage() argument
844 if (usage == 0xff0000c5 && parser->global.report_count == 256 && in hid_scan_feature_usage()
845 parser->global.report_size == 8) in hid_scan_feature_usage()
846 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; in hid_scan_feature_usage()
848 if (usage == 0xff0000c6 && parser->global.report_count == 1 && in hid_scan_feature_usage()
849 parser->global.report_size == 8) in hid_scan_feature_usage()
850 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; in hid_scan_feature_usage()
853 static void hid_scan_collection(struct hid_parser *parser, unsigned type) in hid_scan_collection() argument
855 struct hid_device *hid = parser->device; in hid_scan_collection()
858 if (((parser->global.usage_page << 16) == HID_UP_SENSOR) && in hid_scan_collection()
868 if ((parser->global.usage_page << 16) == HID_UP_GENDESK) in hid_scan_collection()
869 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_collection()
870 if (parser->local.usage[i] == HID_GD_POINTER) in hid_scan_collection()
871 parser->scan_flags |= HID_SCAN_FLAG_GD_POINTER; in hid_scan_collection()
873 if ((parser->global.usage_page << 16) >= HID_UP_MSVENDOR) in hid_scan_collection()
874 parser->scan_flags |= HID_SCAN_FLAG_VENDOR_SPECIFIC; in hid_scan_collection()
876 if ((parser->global.usage_page << 16) == HID_UP_GOOGLEVENDOR) in hid_scan_collection()
877 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_collection()
878 if (parser->local.usage[i] == in hid_scan_collection()
880 parser->device->group = in hid_scan_collection()
884 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item) in hid_scan_main() argument
889 hid_concatenate_last_usage_page(parser); in hid_scan_main()
895 hid_scan_collection(parser, data & 0xff); in hid_scan_main()
903 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_main()
904 hid_scan_input_usage(parser, parser->local.usage[i]); in hid_scan_main()
909 for (i = 0; i < parser->local.usage_index; i++) in hid_scan_main()
910 hid_scan_feature_usage(parser, parser->local.usage[i]); in hid_scan_main()
915 memset(&parser->local, 0, sizeof(parser->local)); in hid_scan_main()
927 struct hid_parser *parser; in hid_scan_report() local
931 static int (*dispatch_type[])(struct hid_parser *parser, in hid_scan_report()
939 parser = vzalloc(sizeof(struct hid_parser)); in hid_scan_report()
940 if (!parser) in hid_scan_report()
943 parser->device = hid; in hid_scan_report()
952 dispatch_type[item.type](parser, &item); in hid_scan_report()
957 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) && in hid_scan_report()
970 if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC) in hid_scan_report()
971 && (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER)) in hid_scan_report()
980 kfree(parser->collection_stack); in hid_scan_report()
981 vfree(parser); in hid_scan_report()
1252 struct hid_parser *parser; in hid_open_report() local
1260 static int (*dispatch_type[])(struct hid_parser *parser, in hid_open_report()
1303 parser = vzalloc(sizeof(struct hid_parser)); in hid_open_report()
1304 if (!parser) { in hid_open_report()
1309 parser->device = device; in hid_open_report()
1332 if (dispatch_type[item.type](parser, &item)) { in hid_open_report()
1340 if (parser->collection_stack_ptr) { in hid_open_report()
1344 if (parser->local.delimiter_depth) { in hid_open_report()
1355 kfree(parser->collection_stack); in hid_open_report()
1356 vfree(parser); in hid_open_report()
1366 kfree(parser->collection_stack); in hid_open_report()
1368 vfree(parser); in hid_open_report()