diff options
Diffstat (limited to 'quantum/api/api_sysex.c')
| -rw-r--r-- | quantum/api/api_sysex.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/quantum/api/api_sysex.c b/quantum/api/api_sysex.c deleted file mode 100644 index 07c90cf804..0000000000 --- a/quantum/api/api_sysex.c +++ /dev/null @@ -1,72 +0,0 @@ -/* Copyright 2016 Jack Humbert, Fred Sundvik - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include "api_sysex.h" -#include "sysex_tools.h" -#include "print.h" -#include "qmk_midi.h" - -void send_bytes_sysex(uint8_t message_type, uint8_t data_type, uint8_t* bytes, uint16_t length) { - // SEND_STRING("\nTX: "); - // for (uint8_t i = 0; i < length; i++) { - // send_byte(bytes[i]); - // SEND_STRING(" "); - // } - if (length > API_SYSEX_MAX_SIZE) { - xprintf("Sysex msg too big %d %d %d", message_type, data_type, length); - return; - } - - // The buffer size required is calculated as the following - // API_SYSEX_MAX_SIZE is the maximum length - // In addition to that we have a two byte message header consisting of the message_type and data_type - // This has to be encoded with an additional overhead of one byte for every starting 7 bytes - // We just add one extra byte in case it's not divisible by 7 - // Then we have an unencoded header consisting of 4 bytes - // Plus a one byte terminator - const unsigned message_header = 2; - const unsigned unencoded_message = API_SYSEX_MAX_SIZE + message_header; - const unsigned encoding_overhead = unencoded_message / 7 + 1; - const unsigned encoded_size = unencoded_message + encoding_overhead; - const unsigned unencoded_header = 4; - const unsigned terminator = 1; - const unsigned buffer_size = encoded_size + unencoded_header + terminator; - uint8_t buffer[encoded_size + unencoded_header + terminator]; - // The unencoded header - buffer[0] = 0xF0; - buffer[1] = 0x00; - buffer[2] = 0x00; - buffer[3] = 0x00; - - // We copy the message to the end of the array, this way we can do an inplace encoding, using the same - // buffer for both input and output - const unsigned message_size = length + message_header; - uint8_t* unencoded_start = buffer + buffer_size - message_size; - uint8_t* ptr = unencoded_start; - *(ptr++) = message_type; - *(ptr++) = data_type; - memcpy(ptr, bytes, length); - - unsigned encoded_length = sysex_encode(buffer + unencoded_header, unencoded_start, message_size); - unsigned final_size = unencoded_header + encoded_length + terminator; - buffer[final_size - 1] = 0xF7; - midi_send_array(&midi_device, final_size, buffer); - - // SEND_STRING("\nTD: "); - // for (uint8_t i = 0; i < encoded_length + 5; i++) { - // send_byte(buffer[i]); - // SEND_STRING(" "); - // } -} |