avrcp_controller.c (45a58b3093f5320b8ffda59b52081d2b540d3217) avrcp_controller.c (1c7ac872de4b58a718b614d8a2a5abc2c1310a57)
1/*
2 * Copyright (C) 2016 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright

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324 } else {
325 event[pos++] = 0;
326 }
327 break;
328 default:
329 break;
330 }
331 event[data_len_pos] = pos - 2;
1/*
2 * Copyright (C) 2016 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright

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324 } else {
325 event[pos++] = 0;
326 }
327 break;
328 default:
329 break;
330 }
331 event[data_len_pos] = pos - 2;
332 // printf("send attr len %d, value %s\n", value_len, value);
332 // printf("Send attribute 0x%02x, len %u\n", attr_id, value_len);
333 // printf_hexdump(value, value_len);
333 (*callback)(HCI_EVENT_PACKET, 0, event, pos);
334}
335
336static void avrcp_parser_process_byte(uint8_t byte, avrcp_connection_t * connection, avrcp_command_type_t ctype){
337 uint16_t attribute_total_value_len;
338 uint32_t attribute_id;
334 (*callback)(HCI_EVENT_PACKET, 0, event, pos);
335}
336
337static void avrcp_parser_process_byte(uint8_t byte, avrcp_connection_t * connection, avrcp_command_type_t ctype){
338 uint16_t attribute_total_value_len;
339 uint32_t attribute_id;
340 // printf("avrcp_parser_process_byte: %02x, state %02x\n", byte, connection->parser_state);
339 switch(connection->parser_state){
340 case AVRCP_PARSER_GET_ATTRIBUTE_HEADER:
341 connection->parser_attribute_header[connection->parser_attribute_header_pos++] = byte;
342 connection->list_offset++;
343
344 if (connection->parser_attribute_header_pos < AVRCP_ATTRIBUTE_HEADER_LEN) return;
345
346 attribute_total_value_len = big_endian_read_16(connection->parser_attribute_header, 6);

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392 return;
393 }
394
395 // attribute fully read, check if more to come
396 if (connection->list_offset < connection->list_size){
397 // more to come, reset parser
398 connection->parser_state = AVRCP_PARSER_GET_ATTRIBUTE_HEADER;
399 connection->parser_attribute_header_pos = 0;
341 switch(connection->parser_state){
342 case AVRCP_PARSER_GET_ATTRIBUTE_HEADER:
343 connection->parser_attribute_header[connection->parser_attribute_header_pos++] = byte;
344 connection->list_offset++;
345
346 if (connection->parser_attribute_header_pos < AVRCP_ATTRIBUTE_HEADER_LEN) return;
347
348 attribute_total_value_len = big_endian_read_16(connection->parser_attribute_header, 6);

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394 return;
395 }
396
397 // attribute fully read, check if more to come
398 if (connection->list_offset < connection->list_size){
399 // more to come, reset parser
400 connection->parser_state = AVRCP_PARSER_GET_ATTRIBUTE_HEADER;
401 connection->parser_attribute_header_pos = 0;
402 connection->attribute_value_offset = 0;
400 } else {
401 // fully done
402 avrcp_parser_reset(connection);
403 avrcp_controller_emit_now_playing_info_event_done(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, 0);
404 }
405}
406
407static void avrcp_source_parse_and_emit_element_attrs(uint8_t * packet, uint16_t num_bytes_to_read, avrcp_connection_t * connection, avrcp_command_type_t ctype){

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404 // fully done
405 avrcp_parser_reset(connection);
406 avrcp_controller_emit_now_playing_info_event_done(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, 0);
407 }
408}
409
410static void avrcp_source_parse_and_emit_element_attrs(uint8_t * packet, uint16_t num_bytes_to_read, avrcp_connection_t * connection, avrcp_command_type_t ctype){

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