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btstack_hid_parser: lazy scan for usages

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This commit is contained in:
Matthias Ringwald 2024-08-13 15:52:06 +02:00
parent 2cca3b08fa
commit 87256a6a80
1 changed files with 4 additions and 3 deletions
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7
src/btstack_hid_parser.c
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@ -565,11 +565,12 @@ void btstack_hid_usage_iterator_init(btstack_hid_parser_t * parser, const uint8_
parser->state = BTSTACK_HID_PARSER_SCAN_FOR_REPORT_ITEM;
parser->global_report_id = HID_REPORT_ID_UNDEFINED;
btstack_hid_descriptor_iterator_init(&parser->descriptor_iterator, hid_descriptor, hid_descriptor_len);
btstack_hid_usage_iterator_find_next_usage(parser);
}
bool btstack_hid_usage_iterator_has_more(btstack_hid_parser_t * parser){
while (parser->state == BTSTACK_HID_PARSER_SCAN_FOR_REPORT_ITEM){
btstack_hid_usage_iterator_find_next_usage(parser);
}
return parser->state == BTSTACK_HID_PARSER_USAGES_AVAILABLE;
}
@ -607,12 +608,12 @@ void btstack_hid_usage_iterator_get_item(btstack_hid_parser_t * parser, btstack_
parser->available_usages = 0;
}
}
if (parser->available_usages) {
return;
}
if (parser->required_usages == 0u){
parser->state = BTSTACK_HID_PARSER_SCAN_FOR_REPORT_ITEM;
btstack_hid_usage_iterator_find_next_usage(parser);
} else {
hid_find_next_usage(parser);
if (parser->available_usages == 0u) {